diff options
Diffstat (limited to 'drivers/s390/net')
36 files changed, 7885 insertions, 4833 deletions
diff --git a/drivers/s390/net/Kconfig b/drivers/s390/net/Kconfig index a7745c82b4a..8b3f5599180 100644 --- a/drivers/s390/net/Kconfig +++ b/drivers/s390/net/Kconfig @@ -2,17 +2,18 @@ menu "S/390 network device drivers" depends on NETDEVICES && S390 config LCS - tristate "Lan Channel Station Interface" - depends on CCW && NETDEVICES && (NET_ETHERNET || TR || FDDI) + def_tristate m + prompt "Lan Channel Station Interface" + depends on CCW && NETDEVICES && (ETHERNET || FDDI) help Select this option if you want to use LCS networking on IBM System z. - This device driver supports Token Ring (IEEE 802.5), - FDDI (IEEE 802.7) and Ethernet. - To compile as a module, choose M. The module name is lcs.ko. + This device driver supports FDDI (IEEE 802.7) and Ethernet. + To compile as a module, choose M. The module name is lcs. If you do not know what it is, it's safe to choose Y. config CTCM - tristate "CTC and MPC SNA device support" + def_tristate m + prompt "CTC and MPC SNA device support" depends on CCW && NETDEVICES help Select this option if you want to use channel-to-channel @@ -21,12 +22,13 @@ config CTCM It also supports virtual CTCs when running under VM. This driver also supports channel-to-channel MPC SNA devices. MPC is an SNA protocol device used by Communication Server for Linux. - To compile as a module, choose M. The module name is ctcm.ko. + To compile as a module, choose M. The module name is ctcm. To compile into the kernel, choose Y. If you do not need any channel-to-channel connection, choose N. config NETIUCV - tristate "IUCV network device support (VM only)" + def_tristate m + prompt "IUCV network device support (VM only)" depends on IUCV && NETDEVICES help Select this option if you want to use inter-user communication @@ -34,62 +36,76 @@ config NETIUCV link between VM guests. Using ifconfig a point-to-point connection can be established to the Linux on IBM System z running on the other VM guest. To compile as a module, choose M. - The module name is netiucv.ko. If unsure, choose Y. + The module name is netiucv. If unsure, choose Y. config SMSGIUCV - tristate "IUCV special message support (VM only)" + def_tristate m + prompt "IUCV special message support (VM only)" depends on IUCV help Select this option if you want to be able to receive SMSG messages from other VM guest systems. +config SMSGIUCV_EVENT + def_tristate m + prompt "Deliver IUCV special messages as uevents (VM only)" + depends on SMSGIUCV + help + Select this option to deliver CP special messages (SMSGs) as + uevents. The driver handles only those special messages that + start with "APP". + + To compile as a module, choose M. The module name is "smsgiucv_app". + config CLAW - tristate "CLAW device support" + def_tristate m + prompt "CLAW device support" depends on CCW && NETDEVICES help This driver supports channel attached CLAW devices. CLAW is Common Link Access for Workstation. Common devices that use CLAW are RS/6000s, Cisco Routers (CIP) and 3172 devices. - To compile as a module, choose M. The module name is claw.ko. + To compile as a module, choose M. The module name is claw. To compile into the kernel, choose Y. config QETH - tristate "Gigabit Ethernet device support" + def_tristate y + prompt "Gigabit Ethernet device support" depends on CCW && NETDEVICES && IP_MULTICAST && QDIO help This driver supports the IBM System z OSA Express adapters - in QDIO mode (all media types), HiperSockets interfaces and VM GuestLAN - interfaces in QDIO and HIPER mode. + in QDIO mode (all media types), HiperSockets interfaces and z/VM + virtual NICs for Guest LAN and VSWITCH. For details please refer to the documentation provided by IBM at <http://www.ibm.com/developerworks/linux/linux390> To compile this driver as a module, choose M. - The module name is qeth.ko. + The module name is qeth. config QETH_L2 - tristate "qeth layer 2 device support" - depends on QETH - help - Select this option to be able to run qeth devices in layer 2 mode. - To compile as a module, choose M. The module name is qeth_l2.ko. - If unsure, choose y. + def_tristate y + prompt "qeth layer 2 device support" + depends on QETH + help + Select this option to be able to run qeth devices in layer 2 mode. + To compile as a module, choose M. The module name is qeth_l2. + If unsure, choose y. config QETH_L3 - tristate "qeth layer 3 device support" - depends on QETH - help - Select this option to be able to run qeth devices in layer 3 mode. - To compile as a module choose M. The module name is qeth_l3.ko. - If unsure, choose Y. + def_tristate y + prompt "qeth layer 3 device support" + depends on QETH + help + Select this option to be able to run qeth devices in layer 3 mode. + To compile as a module choose M. The module name is qeth_l3. + If unsure, choose Y. config QETH_IPV6 - bool - depends on (QETH_L3 = IPV6) || (QETH_L3 && IPV6 = 'y') - default y + def_bool y if (QETH_L3 = IPV6) || (QETH_L3 && IPV6 = 'y') config CCWGROUP tristate - default (LCS || CTCM || QETH) + default (LCS || CTCM || QETH || CLAW) endmenu diff --git a/drivers/s390/net/Makefile b/drivers/s390/net/Makefile index 6382c04d2bd..d28f05d0c75 100644 --- a/drivers/s390/net/Makefile +++ b/drivers/s390/net/Makefile @@ -3,14 +3,15 @@ # ctcm-y += ctcm_main.o ctcm_fsms.o ctcm_mpc.o ctcm_sysfs.o ctcm_dbug.o -obj-$(CONFIG_CTCM) += ctcm.o fsm.o cu3088.o +obj-$(CONFIG_CTCM) += ctcm.o fsm.o obj-$(CONFIG_NETIUCV) += netiucv.o fsm.o obj-$(CONFIG_SMSGIUCV) += smsgiucv.o -obj-$(CONFIG_LCS) += lcs.o cu3088.o -obj-$(CONFIG_CLAW) += claw.o cu3088.o -qeth-y += qeth_core_sys.o qeth_core_main.o qeth_core_mpc.o qeth_core_offl.o +obj-$(CONFIG_SMSGIUCV_EVENT) += smsgiucv_app.o +obj-$(CONFIG_LCS) += lcs.o +obj-$(CONFIG_CLAW) += claw.o +qeth-y += qeth_core_sys.o qeth_core_main.o qeth_core_mpc.o obj-$(CONFIG_QETH) += qeth.o -qeth_l2-y += qeth_l2_main.o +qeth_l2-y += qeth_l2_main.o qeth_l2_sys.o obj-$(CONFIG_QETH_L2) += qeth_l2.o qeth_l3-y += qeth_l3_main.o qeth_l3_sys.o obj-$(CONFIG_QETH_L3) += qeth_l3.o diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c index e10ac9ab2d4..d837c3c5330 100644 --- a/drivers/s390/net/claw.c +++ b/drivers/s390/net/claw.c @@ -1,14 +1,13 @@ /* - * drivers/s390/net/claw.c * ESCON CLAW network driver * * Linux for zSeries version - * Copyright (C) 2002,2005 IBM Corporation + * Copyright IBM Corp. 2002, 2009 * Author(s) Original code written by: - * Kazuo Iimura (iimura@jp.ibm.com) + * Kazuo Iimura <iimura@jp.ibm.com> * Rewritten by - * Andy Richter (richtera@us.ibm.com) - * Marc Price (mwprice@us.ibm.com) + * Andy Richter <richtera@us.ibm.com> + * Marc Price <mwprice@us.ibm.com> * * sysfs parms: * group x.x.rrrr,x.x.wwww @@ -60,6 +59,9 @@ * 1.25 Added Packing support * 1.5 */ + +#define KMSG_COMPONENT "claw" + #include <asm/ccwdev.h> #include <asm/ccwgroup.h> #include <asm/debug.h> @@ -87,14 +89,13 @@ #include <linux/timer.h> #include <linux/types.h> -#include "cu3088.h" #include "claw.h" /* CLAW uses the s390dbf file system see claw_trace and claw_setup */ - +static char version[] __initdata = "CLAW driver"; static char debug_buffer[255]; /** * Debug Facility Stuff @@ -134,7 +135,6 @@ static inline void claw_set_busy(struct net_device *dev) { ((struct claw_privbk *)dev->ml_priv)->tbusy = 1; - eieio(); } static inline void @@ -142,13 +142,11 @@ claw_clear_busy(struct net_device *dev) { clear_bit(0, &(((struct claw_privbk *) dev->ml_priv)->tbusy)); netif_wake_queue(dev); - eieio(); } static inline int claw_check_busy(struct net_device *dev) { - eieio(); return ((struct claw_privbk *) dev->ml_priv)->tbusy; } @@ -206,23 +204,31 @@ static struct net_device_stats *claw_stats(struct net_device *dev); static int pages_to_order_of_mag(int num_of_pages); static struct sk_buff *claw_pack_skb(struct claw_privbk *privptr); /* sysfs Functions */ -static ssize_t claw_hname_show(struct device *dev, struct device_attribute *attr, char *buf); -static ssize_t claw_hname_write(struct device *dev, struct device_attribute *attr, +static ssize_t claw_hname_show(struct device *dev, + struct device_attribute *attr, char *buf); +static ssize_t claw_hname_write(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count); -static ssize_t claw_adname_show(struct device *dev, struct device_attribute *attr, char *buf); -static ssize_t claw_adname_write(struct device *dev, struct device_attribute *attr, +static ssize_t claw_adname_show(struct device *dev, + struct device_attribute *attr, char *buf); +static ssize_t claw_adname_write(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count); -static ssize_t claw_apname_show(struct device *dev, struct device_attribute *attr, char *buf); -static ssize_t claw_apname_write(struct device *dev, struct device_attribute *attr, +static ssize_t claw_apname_show(struct device *dev, + struct device_attribute *attr, char *buf); +static ssize_t claw_apname_write(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count); -static ssize_t claw_wbuff_show(struct device *dev, struct device_attribute *attr, char *buf); -static ssize_t claw_wbuff_write(struct device *dev, struct device_attribute *attr, +static ssize_t claw_wbuff_show(struct device *dev, + struct device_attribute *attr, char *buf); +static ssize_t claw_wbuff_write(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count); -static ssize_t claw_rbuff_show(struct device *dev, struct device_attribute *attr, char *buf); -static ssize_t claw_rbuff_write(struct device *dev, struct device_attribute *attr, +static ssize_t claw_rbuff_show(struct device *dev, + struct device_attribute *attr, char *buf); +static ssize_t claw_rbuff_write(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count); -static int claw_add_files(struct device *dev); -static void claw_remove_files(struct device *dev); /* Functions for System Validate */ static int claw_process_control( struct net_device *dev, struct ccwbk * p_ccw); @@ -240,76 +246,69 @@ static void claw_free_wrt_buf(struct net_device *dev); /* Functions for unpack reads */ static void unpack_read(struct net_device *dev); +static int claw_pm_prepare(struct ccwgroup_device *gdev) +{ + return -EPERM; +} + +/* the root device for claw group devices */ +static struct device *claw_root_dev; + /* ccwgroup table */ static struct ccwgroup_driver claw_group_driver = { - .owner = THIS_MODULE, - .name = "claw", - .max_slaves = 2, - .driver_id = 0xC3D3C1E6, - .probe = claw_probe, - .remove = claw_remove_device, - .set_online = claw_new_device, - .set_offline = claw_shutdown_device, + .driver = { + .owner = THIS_MODULE, + .name = "claw", + }, + .setup = claw_probe, + .remove = claw_remove_device, + .set_online = claw_new_device, + .set_offline = claw_shutdown_device, + .prepare = claw_pm_prepare, }; -/* -* Key functions -*/ +static struct ccw_device_id claw_ids[] = { + {CCW_DEVICE(0x3088, 0x61), .driver_info = claw_channel_type_claw}, + {}, +}; +MODULE_DEVICE_TABLE(ccw, claw_ids); + +static struct ccw_driver claw_ccw_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "claw", + }, + .ids = claw_ids, + .probe = ccwgroup_probe_ccwdev, + .remove = ccwgroup_remove_ccwdev, + .int_class = IRQIO_CLW, +}; -/*----------------------------------------------------------------* - * claw_probe * - * this function is called for each CLAW device. * - *----------------------------------------------------------------*/ -static int -claw_probe(struct ccwgroup_device *cgdev) +static ssize_t claw_driver_group_store(struct device_driver *ddrv, + const char *buf, size_t count) { - int rc; - struct claw_privbk *privptr=NULL; + int err; + err = ccwgroup_create_dev(claw_root_dev, &claw_group_driver, 2, buf); + return err ? err : count; +} +static DRIVER_ATTR(group, 0200, NULL, claw_driver_group_store); - CLAW_DBF_TEXT(2, setup, "probe"); - if (!get_device(&cgdev->dev)) - return -ENODEV; - privptr = kzalloc(sizeof(struct claw_privbk), GFP_KERNEL); - cgdev->dev.driver_data = privptr; - if (privptr == NULL) { - probe_error(cgdev); - put_device(&cgdev->dev); - CLAW_DBF_TEXT_(2, setup, "probex%d", -ENOMEM); - return -ENOMEM; - } - privptr->p_mtc_envelope= kzalloc( MAX_ENVELOPE_SIZE, GFP_KERNEL); - privptr->p_env = kzalloc(sizeof(struct claw_env), GFP_KERNEL); - if ((privptr->p_mtc_envelope==NULL) || (privptr->p_env==NULL)) { - probe_error(cgdev); - put_device(&cgdev->dev); - CLAW_DBF_TEXT_(2, setup, "probex%d", -ENOMEM); - return -ENOMEM; - } - memcpy(privptr->p_env->adapter_name,WS_NAME_NOT_DEF,8); - memcpy(privptr->p_env->host_name,WS_NAME_NOT_DEF,8); - memcpy(privptr->p_env->api_type,WS_NAME_NOT_DEF,8); - privptr->p_env->packing = 0; - privptr->p_env->write_buffers = 5; - privptr->p_env->read_buffers = 5; - privptr->p_env->read_size = CLAW_FRAME_SIZE; - privptr->p_env->write_size = CLAW_FRAME_SIZE; - rc = claw_add_files(&cgdev->dev); - if (rc) { - probe_error(cgdev); - put_device(&cgdev->dev); - printk(KERN_WARNING "add_files failed %s %s Exit Line %d \n", - cgdev->cdev[0]->dev.bus_id,__func__,__LINE__); - CLAW_DBF_TEXT_(2, setup, "probex%d", rc); - return rc; - } - privptr->p_env->p_priv = privptr; - cgdev->cdev[0]->handler = claw_irq_handler; - cgdev->cdev[1]->handler = claw_irq_handler; - CLAW_DBF_TEXT(2, setup, "prbext 0"); +static struct attribute *claw_drv_attrs[] = { + &driver_attr_group.attr, + NULL, +}; +static struct attribute_group claw_drv_attr_group = { + .attrs = claw_drv_attrs, +}; +static const struct attribute_group *claw_drv_attr_groups[] = { + &claw_drv_attr_group, + NULL, +}; - return 0; -} /* end of claw_probe */ +/* +* Key functions +*/ /*-------------------------------------------------------------------* * claw_tx * @@ -324,17 +323,15 @@ claw_tx(struct sk_buff *skb, struct net_device *dev) struct chbk *p_ch; CLAW_DBF_TEXT(4, trace, "claw_tx"); - p_ch=&privptr->channel[WRITE]; - if (skb == NULL) { - privptr->stats.tx_dropped++; - privptr->stats.tx_errors++; - CLAW_DBF_TEXT_(2, trace, "clawtx%d", -EIO); - return -EIO; - } + p_ch = &privptr->channel[WRITE_CHANNEL]; spin_lock_irqsave(get_ccwdev_lock(p_ch->cdev), saveflags); rc=claw_hw_tx( skb, dev, 1 ); spin_unlock_irqrestore(get_ccwdev_lock(p_ch->cdev), saveflags); CLAW_DBF_TEXT_(4, trace, "clawtx%d", rc); + if (rc) + rc = NETDEV_TX_BUSY; + else + rc = NETDEV_TX_OK; return rc; } /* end of claw_tx */ @@ -347,7 +344,7 @@ static struct sk_buff * claw_pack_skb(struct claw_privbk *privptr) { struct sk_buff *new_skb,*held_skb; - struct chbk *p_ch = &privptr->channel[WRITE]; + struct chbk *p_ch = &privptr->channel[WRITE_CHANNEL]; struct claw_env *p_env = privptr->p_env; int pkt_cnt,pk_ind,so_far; @@ -455,15 +452,15 @@ claw_open(struct net_device *dev) privptr->p_env->write_size=CLAW_FRAME_SIZE; } claw_set_busy(dev); - tasklet_init(&privptr->channel[READ].tasklet, claw_irq_tasklet, - (unsigned long) &privptr->channel[READ]); + tasklet_init(&privptr->channel[READ_CHANNEL].tasklet, claw_irq_tasklet, + (unsigned long) &privptr->channel[READ_CHANNEL]); for ( i = 0; i < 2; i++) { CLAW_DBF_TEXT_(2, trace, "opn_ch%d", i); init_waitqueue_head(&privptr->channel[i].wait); /* skb_queue_head_init(&p_ch->io_queue); */ - if (i == WRITE) + if (i == WRITE_CHANNEL) skb_queue_head_init( - &privptr->channel[WRITE].collect_queue); + &privptr->channel[WRITE_CHANNEL].collect_queue); privptr->channel[i].flag_a = 0; privptr->channel[i].IO_active = 0; privptr->channel[i].flag &= ~CLAW_TIMER; @@ -491,12 +488,13 @@ claw_open(struct net_device *dev) if((privptr->channel[i].flag & CLAW_TIMER) == 0x00) del_timer(&timer); } - if ((((privptr->channel[READ].last_dstat | - privptr->channel[WRITE].last_dstat) & + if ((((privptr->channel[READ_CHANNEL].last_dstat | + privptr->channel[WRITE_CHANNEL].last_dstat) & ~(DEV_STAT_CHN_END | DEV_STAT_DEV_END)) != 0x00) || - (((privptr->channel[READ].flag | - privptr->channel[WRITE].flag) & CLAW_TIMER) != 0x00)) { - printk(KERN_INFO "%s: remote side is not ready\n", dev->name); + (((privptr->channel[READ_CHANNEL].flag | + privptr->channel[WRITE_CHANNEL].flag) & CLAW_TIMER) != 0x00)) { + dev_info(&privptr->channel[READ_CHANNEL].cdev->dev, + "%s: remote side is not ready\n", dev->name); CLAW_DBF_TEXT(2, trace, "notrdy"); for ( i = 0; i < 2; i++) { @@ -547,8 +545,8 @@ claw_open(struct net_device *dev) } } privptr->buffs_alloc = 0; - privptr->channel[READ].flag= 0x00; - privptr->channel[WRITE].flag = 0x00; + privptr->channel[READ_CHANNEL].flag = 0x00; + privptr->channel[WRITE_CHANNEL].flag = 0x00; privptr->p_buff_ccw=NULL; privptr->p_buff_read=NULL; privptr->p_buff_write=NULL; @@ -581,24 +579,22 @@ claw_irq_handler(struct ccw_device *cdev, CLAW_DBF_TEXT(4, trace, "clawirq"); /* Bypass all 'unsolicited interrupts' */ - if (!cdev->dev.driver_data) { - printk(KERN_WARNING "claw: unsolicited interrupt for device:" - "%s received c-%02x d-%02x\n", - cdev->dev.bus_id, irb->scsw.cmd.cstat, - irb->scsw.cmd.dstat); + privptr = dev_get_drvdata(&cdev->dev); + if (!privptr) { + dev_warn(&cdev->dev, "An uninitialized CLAW device received an" + " IRQ, c-%02x d-%02x\n", + irb->scsw.cmd.cstat, irb->scsw.cmd.dstat); CLAW_DBF_TEXT(2, trace, "badirq"); return; } - privptr = (struct claw_privbk *)cdev->dev.driver_data; /* Try to extract channel from driver data. */ - if (privptr->channel[READ].cdev == cdev) - p_ch = &privptr->channel[READ]; - else if (privptr->channel[WRITE].cdev == cdev) - p_ch = &privptr->channel[WRITE]; + if (privptr->channel[READ_CHANNEL].cdev == cdev) + p_ch = &privptr->channel[READ_CHANNEL]; + else if (privptr->channel[WRITE_CHANNEL].cdev == cdev) + p_ch = &privptr->channel[WRITE_CHANNEL]; else { - printk(KERN_WARNING "claw: Can't determine channel for " - "interrupt, device %s\n", cdev->dev.bus_id); + dev_warn(&cdev->dev, "The device is not a CLAW device\n"); CLAW_DBF_TEXT(2, trace, "badchan"); return; } @@ -612,7 +608,8 @@ claw_irq_handler(struct ccw_device *cdev, /* Check for good subchannel return code, otherwise info message */ if (irb->scsw.cmd.cstat && !(irb->scsw.cmd.cstat & SCHN_STAT_PCI)) { - printk(KERN_INFO "%s: subchannel check for device: %04x -" + dev_info(&cdev->dev, + "%s: subchannel check for device: %04x -" " Sch Stat %02x Dev Stat %02x CPA - %04x\n", dev->name, p_ch->devno, irb->scsw.cmd.cstat, irb->scsw.cmd.dstat, @@ -651,7 +648,7 @@ claw_irq_handler(struct ccw_device *cdev, wake_up(&p_ch->wait); /* wake claw_open (READ)*/ } else if (p_ch->flag == CLAW_WRITE) { p_ch->claw_state = CLAW_START_WRITE; - /* send SYSTEM_VALIDATE */ + /* send SYSTEM_VALIDATE */ claw_strt_read(dev, LOCK_NO); claw_send_control(dev, SYSTEM_VALIDATE_REQUEST, @@ -659,10 +656,9 @@ claw_irq_handler(struct ccw_device *cdev, p_env->host_name, p_env->adapter_name); } else { - printk(KERN_WARNING "claw: unsolicited " - "interrupt for device:" - "%s received c-%02x d-%02x\n", - cdev->dev.bus_id, + dev_warn(&cdev->dev, "The CLAW device received" + " an unexpected IRQ, " + "c-%02x d-%02x\n", irb->scsw.cmd.cstat, irb->scsw.cmd.dstat); return; @@ -677,8 +673,8 @@ claw_irq_handler(struct ccw_device *cdev, (p_ch->irb->ecw[0] & 0x40) == 0x40 || (p_ch->irb->ecw[0]) == 0) { privptr->stats.rx_errors++; - printk(KERN_INFO "%s: Restart is " - "required after remote " + dev_info(&cdev->dev, + "%s: Restart is required after remote " "side recovers \n", dev->name); } @@ -713,11 +709,13 @@ claw_irq_handler(struct ccw_device *cdev, return; case CLAW_START_WRITE: if (p_ch->irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) { - printk(KERN_INFO "%s: Unit Check Occured in " + dev_info(&cdev->dev, + "%s: Unit Check Occurred in " "write channel\n", dev->name); clear_bit(0, (void *)&p_ch->IO_active); if (p_ch->irb->ecw[0] & 0x80) { - printk(KERN_INFO "%s: Resetting Event " + dev_info(&cdev->dev, + "%s: Resetting Event " "occurred:\n", dev->name); init_timer(&p_ch->timer); p_ch->timer.function = @@ -725,7 +723,8 @@ claw_irq_handler(struct ccw_device *cdev, p_ch->timer.data = (unsigned long)p_ch; p_ch->timer.expires = jiffies + 10*HZ; add_timer(&p_ch->timer); - printk(KERN_INFO "%s: write connection " + dev_info(&cdev->dev, + "%s: write connection " "restarting\n", dev->name); } CLAW_DBF_TEXT(4, trace, "rstrtwrt"); @@ -733,9 +732,10 @@ claw_irq_handler(struct ccw_device *cdev, } if (p_ch->irb->scsw.cmd.dstat & DEV_STAT_UNIT_EXCEP) { clear_bit(0, (void *)&p_ch->IO_active); - printk(KERN_INFO "%s: Unit Exception " - "Occured in write channel\n", - dev->name); + dev_info(&cdev->dev, + "%s: Unit Exception " + "occurred in write channel\n", + dev->name); } if (!((p_ch->irb->scsw.cmd.stctl & SCSW_STCTL_SEC_STATUS) || (p_ch->irb->scsw.cmd.stctl == SCSW_STCTL_STATUS_PEND) || @@ -750,15 +750,16 @@ claw_irq_handler(struct ccw_device *cdev, claw_clearbit_busy(TB_TX, dev); claw_clear_busy(dev); } - p_ch_r = (struct chbk *)&privptr->channel[READ]; + p_ch_r = (struct chbk *)&privptr->channel[READ_CHANNEL]; if (test_and_set_bit(CLAW_BH_ACTIVE, (void *)&p_ch_r->flag_a) == 0) tasklet_schedule(&p_ch_r->tasklet); CLAW_DBF_TEXT(4, trace, "StWtExit"); return; default: - printk(KERN_WARNING "%s: wrong selection code - irq " - "state=%d\n", dev->name, p_ch->claw_state); + dev_warn(&cdev->dev, + "The CLAW device for %s received an unexpected IRQ\n", + dev->name); CLAW_DBF_TEXT(2, trace, "badIRQ"); return; } @@ -775,12 +776,10 @@ claw_irq_tasklet ( unsigned long data ) { struct chbk * p_ch; struct net_device *dev; - struct claw_privbk * privptr; p_ch = (struct chbk *) data; dev = (struct net_device *)p_ch->ndev; CLAW_DBF_TEXT(4, trace, "IRQtask"); - privptr = (struct claw_privbk *)dev->ml_priv; unpack_read(dev); clear_bit(CLAW_BH_ACTIVE, (void *)&p_ch->flag_a); CLAW_DBF_TEXT(4, trace, "TskletXt"); @@ -814,13 +813,13 @@ claw_release(struct net_device *dev) for ( i = 1; i >=0 ; i--) { spin_lock_irqsave( get_ccwdev_lock(privptr->channel[i].cdev), saveflags); - /* del_timer(&privptr->channel[READ].timer); */ + /* del_timer(&privptr->channel[READ_CHANNEL].timer); */ privptr->channel[i].claw_state = CLAW_STOP; privptr->channel[i].IO_active = 0; parm = (unsigned long) &privptr->channel[i]; - if (i == WRITE) + if (i == WRITE_CHANNEL) claw_purge_skb_queue( - &privptr->channel[WRITE].collect_queue); + &privptr->channel[WRITE_CHANNEL].collect_queue); rc = ccw_device_halt (privptr->channel[i].cdev, parm); if (privptr->system_validate_comp==0x00) /* never opened? */ init_waitqueue_head(&privptr->channel[i].wait); @@ -907,14 +906,16 @@ claw_release(struct net_device *dev) privptr->mtc_skipping = 1; privptr->mtc_offset=0; - if (((privptr->channel[READ].last_dstat | - privptr->channel[WRITE].last_dstat) & + if (((privptr->channel[READ_CHANNEL].last_dstat | + privptr->channel[WRITE_CHANNEL].last_dstat) & ~(DEV_STAT_CHN_END | DEV_STAT_DEV_END)) != 0x00) { - printk(KERN_WARNING "%s: channel problems during close - " - "read: %02x - write: %02x\n", + dev_warn(&privptr->channel[READ_CHANNEL].cdev->dev, + "Deactivating %s completed with incorrect" + " subchannel status " + "(read %02x, write %02x)\n", dev->name, - privptr->channel[READ].last_dstat, - privptr->channel[WRITE].last_dstat); + privptr->channel[READ_CHANNEL].last_dstat, + privptr->channel[WRITE_CHANNEL].last_dstat); CLAW_DBF_TEXT(2, trace, "badclose"); } CLAW_DBF_TEXT(4, trace, "rlsexit"); @@ -954,7 +955,6 @@ claw_write_next ( struct chbk * p_ch ) struct net_device *dev; struct claw_privbk *privptr=NULL; struct sk_buff *pk_skb; - int rc; CLAW_DBF_TEXT(4, trace, "claw_wrt"); if (p_ch->claw_state == CLAW_STOP) @@ -966,7 +966,7 @@ claw_write_next ( struct chbk * p_ch ) !skb_queue_empty(&p_ch->collect_queue)) { pk_skb = claw_pack_skb(privptr); while (pk_skb != NULL) { - rc = claw_hw_tx( pk_skb, dev,1); + claw_hw_tx(pk_skb, dev, 1); if (privptr->write_free_count > 0) { pk_skb = claw_pack_skb(privptr); } else @@ -1012,7 +1012,7 @@ static int pages_to_order_of_mag(int num_of_pages) { int order_of_mag=1; /* assume 2 pages */ - int nump=2; + int nump; CLAW_DBF_TEXT_(5, trace, "pages%d", num_of_pages); if (num_of_pages == 1) {return 0; } /* magnitude of 0 = 1 page */ @@ -1076,8 +1076,8 @@ add_claw_reads(struct net_device *dev, struct ccwbk* p_first, } if ( privptr-> p_read_active_first ==NULL ) { - privptr-> p_read_active_first= p_first; /* set new first */ - privptr-> p_read_active_last = p_last; /* set new last */ + privptr->p_read_active_first = p_first; /* set new first */ + privptr->p_read_active_last = p_last; /* set new last */ } else { @@ -1113,7 +1113,7 @@ add_claw_reads(struct net_device *dev, struct ccwbk* p_first, privptr->p_read_active_last->r_TIC_2.cda= (__u32)__pa(&p_first->read); } - /* chain in new set of blocks */ + /* chain in new set of blocks */ privptr->p_read_active_last->next = p_first; privptr->p_read_active_last=p_last; } /* end of if ( privptr-> p_read_active_first ==NULL) */ @@ -1135,20 +1135,18 @@ ccw_check_return_code(struct ccw_device *cdev, int return_code) case -EBUSY: /* BUSY is a transient state no action needed */ break; case -ENODEV: - printk(KERN_EMERG "%s: Missing device called " - "for IO ENODEV\n", cdev->dev.bus_id); - break; - case -EIO: - printk(KERN_EMERG "%s: Status pending... EIO \n", - cdev->dev.bus_id); + dev_err(&cdev->dev, "The remote channel adapter is not" + " available\n"); break; case -EINVAL: - printk(KERN_EMERG "%s: Invalid Dev State EINVAL \n", - cdev->dev.bus_id); + dev_err(&cdev->dev, + "The status of the remote channel adapter" + " is not valid\n"); break; default: - printk(KERN_EMERG "%s: Unknown error in " - "Do_IO %d\n",cdev->dev.bus_id, return_code); + dev_err(&cdev->dev, "The common device layer" + " returned error code %d\n", + return_code); } } CLAW_DBF_TEXT(4, trace, "ccwret"); @@ -1162,42 +1160,37 @@ static void ccw_check_unit_check(struct chbk * p_ch, unsigned char sense ) { struct net_device *ndev = p_ch->ndev; + struct device *dev = &p_ch->cdev->dev; CLAW_DBF_TEXT(4, trace, "unitchek"); - printk(KERN_INFO "%s: Unit Check with sense byte:0x%04x\n", - ndev->name, sense); - - if (sense & 0x40) { - if (sense & 0x01) { - printk(KERN_WARNING "%s: Interface disconnect or " - "Selective reset " - "occurred (remote side)\n", ndev->name); - } - else { - printk(KERN_WARNING "%s: System reset occured" - " (remote side)\n", ndev->name); - } - } - else if (sense & 0x20) { - if (sense & 0x04) { - printk(KERN_WARNING "%s: Data-streaming " - "timeout)\n", ndev->name); - } - else { - printk(KERN_WARNING "%s: Data-transfer parity" - " error\n", ndev->name); - } - } - else if (sense & 0x10) { - if (sense & 0x20) { - printk(KERN_WARNING "%s: Hardware malfunction " - "(remote side)\n", ndev->name); - } - else { - printk(KERN_WARNING "%s: read-data parity error " - "(remote side)\n", ndev->name); - } - } + dev_warn(dev, "The communication peer of %s disconnected\n", + ndev->name); + + if (sense & 0x40) { + if (sense & 0x01) { + dev_warn(dev, "The remote channel adapter for" + " %s has been reset\n", + ndev->name); + } + } else if (sense & 0x20) { + if (sense & 0x04) { + dev_warn(dev, "A data streaming timeout occurred" + " for %s\n", + ndev->name); + } else if (sense & 0x10) { + dev_warn(dev, "The remote channel adapter for %s" + " is faulty\n", + ndev->name); + } else { + dev_warn(dev, "A data transfer parity error occurred" + " for %s\n", + ndev->name); + } + } else if (sense & 0x10) { + dev_warn(dev, "A read data parity error occurred" + " for %s\n", + ndev->name); + } } /* end of ccw_check_unit_check */ @@ -1234,7 +1227,7 @@ find_link(struct net_device *dev, char *host_name, char *ws_name ) break; } - return 0; + return rc; } /* end of find_link */ /*-------------------------------------------------------------------* @@ -1257,15 +1250,12 @@ claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid) unsigned char *pDataAddress; struct endccw *pEnd; struct ccw1 tempCCW; - struct chbk *p_ch; struct claw_env *p_env; - int lock; struct clawph *pk_head; struct chbk *ch; CLAW_DBF_TEXT(4, trace, "hw_tx"); privptr = (struct claw_privbk *)(dev->ml_priv); - p_ch=(struct chbk *)&privptr->channel[WRITE]; p_env =privptr->p_env; claw_free_wrt_buf(dev); /* Clean up free chain if posible */ /* scan the write queue to free any completed write packets */ @@ -1298,7 +1288,7 @@ claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid) claw_strt_out_IO(dev ); claw_free_wrt_buf( dev ); if (privptr->write_free_count==0) { - ch = &privptr->channel[WRITE]; + ch = &privptr->channel[WRITE_CHANNEL]; atomic_inc(&skb->users); skb_queue_tail(&ch->collect_queue, skb); goto Done; @@ -1310,7 +1300,7 @@ claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid) } /* tx lock */ if (claw_test_and_setbit_busy(TB_TX,dev)) { /* set to busy */ - ch = &privptr->channel[WRITE]; + ch = &privptr->channel[WRITE_CHANNEL]; atomic_inc(&skb->users); skb_queue_tail(&ch->collect_queue, skb); claw_strt_out_IO(dev ); @@ -1326,7 +1316,7 @@ claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid) privptr->p_write_free_chain == NULL ) { claw_setbit_busy(TB_NOBUFFER,dev); - ch = &privptr->channel[WRITE]; + ch = &privptr->channel[WRITE_CHANNEL]; atomic_inc(&skb->users); skb_queue_tail(&ch->collect_queue, skb); CLAW_DBF_TEXT(2, trace, "clawbusy"); @@ -1338,7 +1328,7 @@ claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid) while (len_of_data > 0) { p_this_ccw=privptr->p_write_free_chain; /* get a block */ if (p_this_ccw == NULL) { /* lost the race */ - ch = &privptr->channel[WRITE]; + ch = &privptr->channel[WRITE_CHANNEL]; atomic_inc(&skb->users); skb_queue_tail(&ch->collect_queue, skb); goto Done2; @@ -1346,7 +1336,10 @@ claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid) privptr->p_write_free_chain=p_this_ccw->next; p_this_ccw->next=NULL; --privptr->write_free_count; /* -1 */ - bytesInThisBuffer=len_of_data; + if (len_of_data >= privptr->p_env->write_size) + bytesInThisBuffer = privptr->p_env->write_size; + else + bytesInThisBuffer = len_of_data; memcpy( p_this_ccw->p_buffer,pDataAddress, bytesInThisBuffer); len_of_data-=bytesInThisBuffer; pDataAddress+=(unsigned long)bytesInThisBuffer; @@ -1374,7 +1367,7 @@ claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid) */ if (p_first_ccw!=NULL) { - /* setup ending ccw sequence for this segment */ + /* setup ending ccw sequence for this segment */ pEnd=privptr->p_end_ccw; if (pEnd->write1) { pEnd->write1=0x00; /* second end ccw is now active */ @@ -1443,12 +1436,6 @@ claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid) } /* endif (p_first_ccw!=NULL) */ dev_kfree_skb_any(skb); - if (linkid==0) { - lock=LOCK_NO; - } - else { - lock=LOCK_YES; - } claw_strt_out_IO(dev ); /* if write free count is zero , set NOBUFFER */ if (privptr->write_free_count==0) { @@ -1696,10 +1683,11 @@ init_ccw_bk(struct net_device *dev) p_buf-> w_TIC_1.flags = 0; p_buf-> w_TIC_1.count = 0; - if (((unsigned long)p_buff+privptr->p_env->write_size) >= + if (((unsigned long)p_buff + + privptr->p_env->write_size) >= ((unsigned long)(p_buff+2* - (privptr->p_env->write_size) -1) & PAGE_MASK)) { - p_buff= p_buff+privptr->p_env->write_size; + (privptr->p_env->write_size) - 1) & PAGE_MASK)) { + p_buff = p_buff+privptr->p_env->write_size; } } } @@ -1839,15 +1827,16 @@ init_ccw_bk(struct net_device *dev) p_buf->header.opcode=0xff; p_buf->header.flag=CLAW_PENDING; - if (((unsigned long)p_buff+privptr->p_env->read_size) >= - ((unsigned long)(p_buff+2*(privptr->p_env->read_size) -1) - & PAGE_MASK) ) { + if (((unsigned long)p_buff+privptr->p_env->read_size) >= + ((unsigned long)(p_buff+2*(privptr->p_env->read_size) + -1) + & PAGE_MASK)) { p_buff= p_buff+privptr->p_env->read_size; } else { p_buff= (void *)((unsigned long) - (p_buff+2*(privptr->p_env->read_size) -1) + (p_buff+2*(privptr->p_env->read_size)-1) & PAGE_MASK) ; } } /* for read_buffers */ @@ -1855,24 +1844,28 @@ init_ccw_bk(struct net_device *dev) else { /* read Size >= PAGE_SIZE */ for (i=0 ; i< privptr->p_env->read_buffers ; i++) { p_buff = (void *)__get_free_pages(__GFP_DMA, - (int)pages_to_order_of_mag(privptr->p_buff_pages_perread) ); + (int)pages_to_order_of_mag( + privptr->p_buff_pages_perread)); if (p_buff==NULL) { free_pages((unsigned long)privptr->p_buff_ccw, - (int)pages_to_order_of_mag(privptr->p_buff_ccw_num)); + (int)pages_to_order_of_mag(privptr-> + p_buff_ccw_num)); /* free the write pages */ p_buf=privptr->p_buff_write; while (p_buf!=NULL) { - free_pages((unsigned long)p_buf->p_buffer, - (int)pages_to_order_of_mag( - privptr->p_buff_pages_perwrite )); + free_pages( + (unsigned long)p_buf->p_buffer, + (int)pages_to_order_of_mag( + privptr->p_buff_pages_perwrite)); p_buf=p_buf->next; } /* free any read pages already alloc */ p_buf=privptr->p_buff_read; while (p_buf!=NULL) { - free_pages((unsigned long)p_buf->p_buffer, - (int)pages_to_order_of_mag( - privptr->p_buff_pages_perread )); + free_pages( + (unsigned long)p_buf->p_buffer, + (int)pages_to_order_of_mag( + privptr->p_buff_pages_perread)); p_buf=p_buf->next; } privptr->p_buff_ccw=NULL; @@ -1963,9 +1956,9 @@ probe_error( struct ccwgroup_device *cgdev) struct claw_privbk *privptr; CLAW_DBF_TEXT(4, trace, "proberr"); - privptr = (struct claw_privbk *) cgdev->dev.driver_data; + privptr = dev_get_drvdata(&cgdev->dev); if (privptr != NULL) { - cgdev->dev.driver_data = NULL; + dev_set_drvdata(&cgdev->dev, NULL); kfree(privptr->p_env); kfree(privptr->p_mtc_envelope); kfree(privptr); @@ -1999,10 +1992,10 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) *catch up to each other */ privptr = dev->ml_priv; p_env=privptr->p_env; - tdev = &privptr->channel[READ].cdev->dev; + tdev = &privptr->channel[READ_CHANNEL].cdev->dev; memcpy( &temp_host_name, p_env->host_name, 8); memcpy( &temp_ws_name, p_env->adapter_name , 8); - printk(KERN_INFO "%s: CLAW device %.8s: " + dev_info(tdev, "%s: CLAW device %.8s: " "Received Control Packet\n", dev->name, temp_ws_name); if (privptr->release_pend==1) { @@ -2021,32 +2014,30 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) if (p_ctlbk->version != CLAW_VERSION_ID) { claw_snd_sys_validate_rsp(dev, p_ctlbk, CLAW_RC_WRONG_VERSION); - printk("%s: %d is wrong version id. " - "Expected %d\n", - dev->name, p_ctlbk->version, - CLAW_VERSION_ID); + dev_warn(tdev, "The communication peer of %s" + " uses an incorrect API version %d\n", + dev->name, p_ctlbk->version); } p_sysval = (struct sysval *)&(p_ctlbk->data); - printk("%s: Recv Sys Validate Request: " - "Vers=%d,link_id=%d,Corr=%d,WS name=%." - "8s,Host name=%.8s\n", - dev->name, p_ctlbk->version, - p_ctlbk->linkid, - p_ctlbk->correlator, - p_sysval->WS_name, - p_sysval->host_name); + dev_info(tdev, "%s: Recv Sys Validate Request: " + "Vers=%d,link_id=%d,Corr=%d,WS name=%.8s," + "Host name=%.8s\n", + dev->name, p_ctlbk->version, + p_ctlbk->linkid, + p_ctlbk->correlator, + p_sysval->WS_name, + p_sysval->host_name); if (memcmp(temp_host_name, p_sysval->host_name, 8)) { claw_snd_sys_validate_rsp(dev, p_ctlbk, CLAW_RC_NAME_MISMATCH); CLAW_DBF_TEXT(2, setup, "HSTBAD"); CLAW_DBF_TEXT_(2, setup, "%s", p_sysval->host_name); CLAW_DBF_TEXT_(2, setup, "%s", temp_host_name); - printk(KERN_INFO "%s: Host name mismatch\n", - dev->name); - printk(KERN_INFO "%s: Received :%s: " - "expected :%s: \n", - dev->name, + dev_warn(tdev, + "Host name %s for %s does not match the" + " remote adapter name %s\n", p_sysval->host_name, + dev->name, temp_host_name); } if (memcmp(temp_ws_name, p_sysval->WS_name, 8)) { @@ -2055,35 +2046,38 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) CLAW_DBF_TEXT(2, setup, "WSNBAD"); CLAW_DBF_TEXT_(2, setup, "%s", p_sysval->WS_name); CLAW_DBF_TEXT_(2, setup, "%s", temp_ws_name); - printk(KERN_INFO "%s: WS name mismatch\n", - dev->name); - printk(KERN_INFO "%s: Received :%s: " - "expected :%s: \n", - dev->name, - p_sysval->WS_name, - temp_ws_name); + dev_warn(tdev, "Adapter name %s for %s does not match" + " the remote host name %s\n", + p_sysval->WS_name, + dev->name, + temp_ws_name); } if ((p_sysval->write_frame_size < p_env->write_size) && (p_env->packing == 0)) { claw_snd_sys_validate_rsp(dev, p_ctlbk, CLAW_RC_HOST_RCV_TOO_SMALL); - printk(KERN_INFO "%s: host write size is too " - "small\n", dev->name); + dev_warn(tdev, + "The local write buffer is smaller than the" + " remote read buffer\n"); CLAW_DBF_TEXT(2, setup, "wrtszbad"); } if ((p_sysval->read_frame_size < p_env->read_size) && (p_env->packing == 0)) { claw_snd_sys_validate_rsp(dev, p_ctlbk, CLAW_RC_HOST_RCV_TOO_SMALL); - printk(KERN_INFO "%s: host read size is too " - "small\n", dev->name); + dev_warn(tdev, + "The local read buffer is smaller than the" + " remote write buffer\n"); CLAW_DBF_TEXT(2, setup, "rdsizbad"); } claw_snd_sys_validate_rsp(dev, p_ctlbk, 0); - printk(KERN_INFO "%s: CLAW device %.8s: System validate " - "completed.\n", dev->name, temp_ws_name); - printk("%s: sys Validate Rsize:%d Wsize:%d\n", dev->name, - p_sysval->read_frame_size, p_sysval->write_frame_size); + dev_info(tdev, + "CLAW device %.8s: System validate" + " completed.\n", temp_ws_name); + dev_info(tdev, + "%s: sys Validate Rsize:%d Wsize:%d\n", + dev->name, p_sysval->read_frame_size, + p_sysval->write_frame_size); privptr->system_validate_comp = 1; if (strncmp(p_env->api_type, WS_APPL_NAME_PACKED, 6) == 0) p_env->packing = PACKING_ASK; @@ -2091,8 +2085,10 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) break; case SYSTEM_VALIDATE_RESPONSE: p_sysval = (struct sysval *)&(p_ctlbk->data); - printk("%s: Recv Sys Validate Resp: Vers=%d,Corr=%d,RC=%d," - "WS name=%.8s,Host name=%.8s\n", + dev_info(tdev, + "Settings for %s validated (version=%d, " + "remote device=%d, rc=%d, adapter name=%.8s, " + "host name=%.8s)\n", dev->name, p_ctlbk->version, p_ctlbk->correlator, @@ -2101,41 +2097,39 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) p_sysval->host_name); switch (p_ctlbk->rc) { case 0: - printk(KERN_INFO "%s: CLAW device " - "%.8s: System validate " - "completed.\n", - dev->name, temp_ws_name); + dev_info(tdev, "%s: CLAW device " + "%.8s: System validate completed.\n", + dev->name, temp_ws_name); if (privptr->system_validate_comp == 0) claw_strt_conn_req(dev); privptr->system_validate_comp = 1; break; case CLAW_RC_NAME_MISMATCH: - printk(KERN_INFO "%s: Sys Validate " - "Resp : Host, WS name is " - "mismatch\n", - dev->name); + dev_warn(tdev, "Validating %s failed because of" + " a host or adapter name mismatch\n", + dev->name); break; case CLAW_RC_WRONG_VERSION: - printk(KERN_INFO "%s: Sys Validate " - "Resp : Wrong version\n", + dev_warn(tdev, "Validating %s failed because of a" + " version conflict\n", dev->name); break; case CLAW_RC_HOST_RCV_TOO_SMALL: - printk(KERN_INFO "%s: Sys Validate " - "Resp : bad frame size\n", + dev_warn(tdev, "Validating %s failed because of a" + " frame size conflict\n", dev->name); break; default: - printk(KERN_INFO "%s: Sys Validate " - "error code=%d \n", - dev->name, p_ctlbk->rc); + dev_warn(tdev, "The communication peer of %s rejected" + " the connection\n", + dev->name); break; } break; case CONNECTION_REQUEST: p_connect = (struct conncmd *)&(p_ctlbk->data); - printk(KERN_INFO "%s: Recv Conn Req: Vers=%d,link_id=%d," + dev_info(tdev, "%s: Recv Conn Req: Vers=%d,link_id=%d," "Corr=%d,HOST appl=%.8s,WS appl=%.8s\n", dev->name, p_ctlbk->version, @@ -2145,21 +2139,21 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) p_connect->WS_name); if (privptr->active_link_ID != 0) { claw_snd_disc(dev, p_ctlbk); - printk(KERN_INFO "%s: Conn Req error : " - "already logical link is active \n", + dev_info(tdev, "%s rejected a connection request" + " because it is already active\n", dev->name); } if (p_ctlbk->linkid != 1) { claw_snd_disc(dev, p_ctlbk); - printk(KERN_INFO "%s: Conn Req error : " - "req logical link id is not 1\n", + dev_info(tdev, "%s rejected a request to open multiple" + " connections\n", dev->name); } rc = find_link(dev, p_connect->host_name, p_connect->WS_name); if (rc != 0) { claw_snd_disc(dev, p_ctlbk); - printk(KERN_INFO "%s: Conn Resp error: " - "req appl name does not match\n", + dev_info(tdev, "%s rejected a connection request" + " because of a type mismatch\n", dev->name); } claw_send_control(dev, @@ -2171,17 +2165,17 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) p_env->packing = PACK_SEND; claw_snd_conn_req(dev, 0); } - printk(KERN_INFO "%s: CLAW device %.8s: Connection " + dev_info(tdev, "%s: CLAW device %.8s: Connection " "completed link_id=%d.\n", dev->name, temp_ws_name, p_ctlbk->linkid); privptr->active_link_ID = p_ctlbk->linkid; - p_ch = &privptr->channel[WRITE]; + p_ch = &privptr->channel[WRITE_CHANNEL]; wake_up(&p_ch->wait); /* wake up claw_open ( WRITE) */ break; case CONNECTION_RESPONSE: p_connect = (struct conncmd *)&(p_ctlbk->data); - printk(KERN_INFO "%s: Revc Conn Resp: Vers=%d,link_id=%d," + dev_info(tdev, "%s: Recv Conn Resp: Vers=%d,link_id=%d," "Corr=%d,RC=%d,Host appl=%.8s, WS appl=%.8s\n", dev->name, p_ctlbk->version, @@ -2192,16 +2186,18 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) p_connect->WS_name); if (p_ctlbk->rc != 0) { - printk(KERN_INFO "%s: Conn Resp error: rc=%d \n", - dev->name, p_ctlbk->rc); + dev_warn(tdev, "The communication peer of %s rejected" + " a connection request\n", + dev->name); return 1; } rc = find_link(dev, p_connect->host_name, p_connect->WS_name); if (rc != 0) { claw_snd_disc(dev, p_ctlbk); - printk(KERN_INFO "%s: Conn Resp error: " - "req appl name does not match\n", + dev_warn(tdev, "The communication peer of %s" + " rejected a connection " + "request because of a type mismatch\n", dev->name); } /* should be until CONNECTION_CONFIRM */ @@ -2209,7 +2205,8 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) break; case CONNECTION_CONFIRM: p_connect = (struct conncmd *)&(p_ctlbk->data); - printk(KERN_INFO "%s: Recv Conn Confirm:Vers=%d,link_id=%d," + dev_info(tdev, + "%s: Recv Conn Confirm:Vers=%d,link_id=%d," "Corr=%d,Host appl=%.8s,WS appl=%.8s\n", dev->name, p_ctlbk->version, @@ -2220,21 +2217,21 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) if (p_ctlbk->linkid == -(privptr->active_link_ID)) { privptr->active_link_ID = p_ctlbk->linkid; if (p_env->packing > PACKING_ASK) { - printk(KERN_INFO "%s: Confirmed Now packing\n", - dev->name); + dev_info(tdev, + "%s: Confirmed Now packing\n", dev->name); p_env->packing = DO_PACKED; } - p_ch = &privptr->channel[WRITE]; + p_ch = &privptr->channel[WRITE_CHANNEL]; wake_up(&p_ch->wait); } else { - printk(KERN_INFO "%s: Conn confirm: " - "unexpected linkid=%d \n", + dev_warn(tdev, "Activating %s failed because of" + " an incorrect link ID=%d\n", dev->name, p_ctlbk->linkid); claw_snd_disc(dev, p_ctlbk); } break; case DISCONNECT: - printk(KERN_INFO "%s: Disconnect: " + dev_info(tdev, "%s: Disconnect: " "Vers=%d,link_id=%d,Corr=%d\n", dev->name, p_ctlbk->version, p_ctlbk->linkid, p_ctlbk->correlator); @@ -2246,12 +2243,13 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) privptr->active_link_ID = 0; break; case CLAW_ERROR: - printk(KERN_INFO "%s: CLAW ERROR detected\n", + dev_warn(tdev, "The communication peer of %s failed\n", dev->name); break; default: - printk(KERN_INFO "%s: Unexpected command code=%d \n", - dev->name, p_ctlbk->command); + dev_warn(tdev, "The communication peer of %s sent" + " an unknown command code\n", + dev->name); break; } @@ -2293,12 +2291,14 @@ claw_send_control(struct net_device *dev, __u8 type, __u8 link, memcpy(&p_sysval->host_name, local_name, 8); memcpy(&p_sysval->WS_name, remote_name, 8); if (privptr->p_env->packing > 0) { - p_sysval->read_frame_size=DEF_PACK_BUFSIZE; - p_sysval->write_frame_size=DEF_PACK_BUFSIZE; + p_sysval->read_frame_size = DEF_PACK_BUFSIZE; + p_sysval->write_frame_size = DEF_PACK_BUFSIZE; } else { /* how big is the biggest group of packets */ - p_sysval->read_frame_size=privptr->p_env->read_size; - p_sysval->write_frame_size=privptr->p_env->write_size; + p_sysval->read_frame_size = + privptr->p_env->read_size; + p_sysval->write_frame_size = + privptr->p_env->write_size; } memset(&p_sysval->reserved, 0x00, 4); break; @@ -2481,10 +2481,9 @@ unpack_read(struct net_device *dev ) p_packd=NULL; privptr = dev->ml_priv; - p_dev = &privptr->channel[READ].cdev->dev; + p_dev = &privptr->channel[READ_CHANNEL].cdev->dev; p_env = privptr->p_env; p_this_ccw=privptr->p_read_active_first; - i=0; while (p_this_ccw!=NULL && p_this_ccw->header.flag!=CLAW_PENDING) { pack_off = 0; p = 0; @@ -2510,8 +2509,10 @@ unpack_read(struct net_device *dev ) mtc_this_frm=1; if (p_this_ccw->header.length!= privptr->p_env->read_size ) { - printk(KERN_INFO " %s: Invalid frame detected " - "length is %02x\n" , + dev_warn(p_dev, + "The communication peer of %s" + " sent a faulty" + " frame of length %02x\n", dev->name, p_this_ccw->header.length); } } @@ -2543,7 +2544,7 @@ unpack_next: goto NextFrame; p_packd = p_this_ccw->p_buffer+pack_off; p_packh = (struct clawph *) p_packd; - if ((p_packh->len == 0) || /* all done with this frame? */ + if ((p_packh->len == 0) || /* done with this frame? */ (p_packh->flag != 0)) goto NextFrame; bytes_to_mov = p_packh->len; @@ -2593,9 +2594,9 @@ unpack_next: netif_rx(skb); } else { + dev_info(p_dev, "Allocating a buffer for" + " incoming data failed\n"); privptr->stats.rx_dropped++; - printk(KERN_WARNING "%s: %s() low on memory\n", - dev->name,__func__); } privptr->mtc_offset=0; privptr->mtc_logical_link=-1; @@ -2652,7 +2653,7 @@ claw_strt_read (struct net_device *dev, int lock ) struct ccwbk*p_ccwbk; struct chbk *p_ch; struct clawh *p_clawh; - p_ch=&privptr->channel[READ]; + p_ch = &privptr->channel[READ_CHANNEL]; CLAW_DBF_TEXT(4, trace, "StRdNter"); p_clawh=(struct clawh *)privptr->p_claw_signal_blk; @@ -2706,7 +2707,7 @@ claw_strt_out_IO( struct net_device *dev ) return; } privptr = (struct claw_privbk *)dev->ml_priv; - p_ch=&privptr->channel[WRITE]; + p_ch = &privptr->channel[WRITE_CHANNEL]; CLAW_DBF_TEXT(4, trace, "strt_io"); p_first_ccw=privptr->p_write_active_first; @@ -2719,8 +2720,8 @@ claw_strt_out_IO( struct net_device *dev ) if (test_and_set_bit(0, (void *)&p_ch->IO_active) == 0) { parm = (unsigned long) p_ch; CLAW_DBF_TEXT(2, trace, "StWrtIO"); - rc = ccw_device_start (p_ch->cdev,&p_first_ccw->write, parm, - 0xff, 0); + rc = ccw_device_start(p_ch->cdev, &p_first_ccw->write, parm, + 0xff, 0); if (rc != 0) { ccw_check_return_code(p_ch->cdev, rc); } @@ -2739,15 +2740,11 @@ claw_free_wrt_buf( struct net_device *dev ) { struct claw_privbk *privptr = (struct claw_privbk *)dev->ml_priv; - struct ccwbk*p_first_ccw; - struct ccwbk*p_last_ccw; struct ccwbk*p_this_ccw; struct ccwbk*p_next_ccw; CLAW_DBF_TEXT(4, trace, "freewrtb"); /* scan the write queue to free any completed write packets */ - p_first_ccw=NULL; - p_last_ccw=NULL; p_this_ccw=privptr->p_write_active_first; while ( (p_this_ccw!=NULL) && (p_this_ccw->header.flag!=CLAW_PENDING)) { @@ -2799,7 +2796,7 @@ claw_free_netdevice(struct net_device * dev, int free_dev) if (dev->flags & IFF_RUNNING) claw_release(dev); if (privptr) { - privptr->channel[READ].ndev = NULL; /* say it's free */ + privptr->channel[READ_CHANNEL].ndev = NULL; /* say it's free */ } dev->ml_priv = NULL; #ifdef MODULE @@ -2815,22 +2812,26 @@ claw_free_netdevice(struct net_device * dev, int free_dev) * Initialize everything of the net device except the name and the * channel structs. */ +static const struct net_device_ops claw_netdev_ops = { + .ndo_open = claw_open, + .ndo_stop = claw_release, + .ndo_get_stats = claw_stats, + .ndo_start_xmit = claw_tx, + .ndo_change_mtu = claw_change_mtu, +}; + static void claw_init_netdevice(struct net_device * dev) { CLAW_DBF_TEXT(2, setup, "init_dev"); CLAW_DBF_TEXT_(2, setup, "%s", dev->name); dev->mtu = CLAW_DEFAULT_MTU_SIZE; - dev->hard_start_xmit = claw_tx; - dev->open = claw_open; - dev->stop = claw_release; - dev->get_stats = claw_stats; - dev->change_mtu = claw_change_mtu; dev->hard_header_len = 0; dev->addr_len = 0; dev->type = ARPHRD_SLIP; dev->tx_queue_len = 1300; dev->flags = IFF_POINTOPOINT | IFF_NOARP; + dev->netdev_ops = &claw_netdev_ops; CLAW_DBF_TEXT(2, setup, "initok"); return; } @@ -2848,11 +2849,11 @@ add_channel(struct ccw_device *cdev,int i,struct claw_privbk *privptr) struct chbk *p_ch; struct ccw_dev_id dev_id; - CLAW_DBF_TEXT_(2, setup, "%s", cdev->dev.bus_id); + CLAW_DBF_TEXT_(2, setup, "%s", dev_name(&cdev->dev)); privptr->channel[i].flag = i+1; /* Read is 1 Write is 2 */ p_ch = &privptr->channel[i]; p_ch->cdev = cdev; - snprintf(p_ch->id, CLAW_ID_SIZE, "cl-%s", cdev->dev.bus_id); + snprintf(p_ch->id, CLAW_ID_SIZE, "cl-%s", dev_name(&cdev->dev)); ccw_device_get_id(cdev, &dev_id); p_ch->devno = dev_id.devno; if ((p_ch->irb = kzalloc(sizeof (struct irb),GFP_KERNEL)) == NULL) { @@ -2879,49 +2880,51 @@ claw_new_device(struct ccwgroup_device *cgdev) int ret; struct ccw_dev_id dev_id; - printk(KERN_INFO "claw: add for %s\n",cgdev->cdev[READ]->dev.bus_id); + dev_info(&cgdev->dev, "add for %s\n", + dev_name(&cgdev->cdev[READ_CHANNEL]->dev)); CLAW_DBF_TEXT(2, setup, "new_dev"); - privptr = cgdev->dev.driver_data; - cgdev->cdev[READ]->dev.driver_data = privptr; - cgdev->cdev[WRITE]->dev.driver_data = privptr; + privptr = dev_get_drvdata(&cgdev->dev); + dev_set_drvdata(&cgdev->cdev[READ_CHANNEL]->dev, privptr); + dev_set_drvdata(&cgdev->cdev[WRITE_CHANNEL]->dev, privptr); if (!privptr) return -ENODEV; p_env = privptr->p_env; - ccw_device_get_id(cgdev->cdev[READ], &dev_id); - p_env->devno[READ] = dev_id.devno; - ccw_device_get_id(cgdev->cdev[WRITE], &dev_id); - p_env->devno[WRITE] = dev_id.devno; + ccw_device_get_id(cgdev->cdev[READ_CHANNEL], &dev_id); + p_env->devno[READ_CHANNEL] = dev_id.devno; + ccw_device_get_id(cgdev->cdev[WRITE_CHANNEL], &dev_id); + p_env->devno[WRITE_CHANNEL] = dev_id.devno; ret = add_channel(cgdev->cdev[0],0,privptr); if (ret == 0) ret = add_channel(cgdev->cdev[1],1,privptr); if (ret != 0) { - printk(KERN_WARNING - "add channel failed with ret = %d\n", ret); + dev_warn(&cgdev->dev, "Creating a CLAW group device" + " failed with error code %d\n", ret); goto out; } - ret = ccw_device_set_online(cgdev->cdev[READ]); + ret = ccw_device_set_online(cgdev->cdev[READ_CHANNEL]); if (ret != 0) { - printk(KERN_WARNING - "claw: ccw_device_set_online %s READ failed " - "with ret = %d\n",cgdev->cdev[READ]->dev.bus_id,ret); + dev_warn(&cgdev->dev, + "Setting the read subchannel online" + " failed with error code %d\n", ret); goto out; } - ret = ccw_device_set_online(cgdev->cdev[WRITE]); + ret = ccw_device_set_online(cgdev->cdev[WRITE_CHANNEL]); if (ret != 0) { - printk(KERN_WARNING - "claw: ccw_device_set_online %s WRITE failed " - "with ret = %d\n",cgdev->cdev[WRITE]->dev.bus_id, ret); + dev_warn(&cgdev->dev, + "Setting the write subchannel online " + "failed with error code %d\n", ret); goto out; } dev = alloc_netdev(0,"claw%d",claw_init_netdevice); if (!dev) { - printk(KERN_WARNING "%s:alloc_netdev failed\n",__func__); + dev_warn(&cgdev->dev, + "Activating the CLAW device failed\n"); goto out; } dev->ml_priv = privptr; - cgdev->dev.driver_data = privptr; - cgdev->cdev[READ]->dev.driver_data = privptr; - cgdev->cdev[WRITE]->dev.driver_data = privptr; + dev_set_drvdata(&cgdev->dev, privptr); + dev_set_drvdata(&cgdev->cdev[READ_CHANNEL]->dev, privptr); + dev_set_drvdata(&cgdev->cdev[WRITE_CHANNEL]->dev, privptr); /* sysfs magic */ SET_NETDEV_DEV(dev, &cgdev->dev); if (register_netdev(dev) != 0) { @@ -2939,17 +2942,17 @@ claw_new_device(struct ccwgroup_device *cgdev) goto out; } } - privptr->channel[READ].ndev = dev; - privptr->channel[WRITE].ndev = dev; + privptr->channel[READ_CHANNEL].ndev = dev; + privptr->channel[WRITE_CHANNEL].ndev = dev; privptr->p_env->ndev = dev; - printk(KERN_INFO "%s:readsize=%d writesize=%d " + dev_info(&cgdev->dev, "%s:readsize=%d writesize=%d " "readbuffer=%d writebuffer=%d read=0x%04x write=0x%04x\n", dev->name, p_env->read_size, p_env->write_size, p_env->read_buffers, - p_env->write_buffers, p_env->devno[READ], - p_env->devno[WRITE]); - printk(KERN_INFO "%s:host_name:%.8s, adapter_name " + p_env->write_buffers, p_env->devno[READ_CHANNEL], + p_env->devno[WRITE_CHANNEL]); + dev_info(&cgdev->dev, "%s:host_name:%.8s, adapter_name " ":%.8s api_type: %.8s\n", dev->name, p_env->host_name, p_env->adapter_name , p_env->api_type); @@ -2984,30 +2987,30 @@ claw_shutdown_device(struct ccwgroup_device *cgdev) { struct claw_privbk *priv; struct net_device *ndev; - int ret; + int ret = 0; - CLAW_DBF_TEXT_(2, setup, "%s", cgdev->dev.bus_id); - priv = cgdev->dev.driver_data; + CLAW_DBF_TEXT_(2, setup, "%s", dev_name(&cgdev->dev)); + priv = dev_get_drvdata(&cgdev->dev); if (!priv) return -ENODEV; - ndev = priv->channel[READ].ndev; + ndev = priv->channel[READ_CHANNEL].ndev; if (ndev) { /* Close the device */ - printk(KERN_INFO - "%s: shuting down \n",ndev->name); + dev_info(&cgdev->dev, "%s: shutting down\n", + ndev->name); if (ndev->flags & IFF_RUNNING) ret = claw_release(ndev); ndev->flags &=~IFF_RUNNING; unregister_netdev(ndev); ndev->ml_priv = NULL; /* cgdev data, not ndev's to free */ claw_free_netdevice(ndev, 1); - priv->channel[READ].ndev = NULL; - priv->channel[WRITE].ndev = NULL; + priv->channel[READ_CHANNEL].ndev = NULL; + priv->channel[WRITE_CHANNEL].ndev = NULL; priv->p_env->ndev = NULL; } ccw_device_set_offline(cgdev->cdev[1]); ccw_device_set_offline(cgdev->cdev[0]); - return 0; + return ret; } static void @@ -3015,15 +3018,11 @@ claw_remove_device(struct ccwgroup_device *cgdev) { struct claw_privbk *priv; - BUG_ON(!cgdev); - CLAW_DBF_TEXT_(2, setup, "%s", cgdev->dev.bus_id); - priv = cgdev->dev.driver_data; - BUG_ON(!priv); - printk(KERN_INFO "claw: %s() called %s will be removed.\n", - __func__,cgdev->cdev[0]->dev.bus_id); + CLAW_DBF_TEXT_(2, setup, "%s", dev_name(&cgdev->dev)); + priv = dev_get_drvdata(&cgdev->dev); + dev_info(&cgdev->dev, " will be removed.\n"); if (cgdev->state == CCWGROUP_ONLINE) claw_shutdown_device(cgdev); - claw_remove_files(&cgdev->dev); kfree(priv->p_mtc_envelope); priv->p_mtc_envelope=NULL; kfree(priv->p_env); @@ -3033,9 +3032,9 @@ claw_remove_device(struct ccwgroup_device *cgdev) kfree(priv->channel[1].irb); priv->channel[1].irb=NULL; kfree(priv); - cgdev->dev.driver_data=NULL; - cgdev->cdev[READ]->dev.driver_data = NULL; - cgdev->cdev[WRITE]->dev.driver_data = NULL; + dev_set_drvdata(&cgdev->dev, NULL); + dev_set_drvdata(&cgdev->cdev[READ_CHANNEL]->dev, NULL); + dev_set_drvdata(&cgdev->cdev[WRITE_CHANNEL]->dev, NULL); put_device(&cgdev->dev); return; @@ -3051,7 +3050,7 @@ claw_hname_show(struct device *dev, struct device_attribute *attr, char *buf) struct claw_privbk *priv; struct claw_env * p_env; - priv = dev->driver_data; + priv = dev_get_drvdata(dev); if (!priv) return -ENODEV; p_env = priv->p_env; @@ -3059,12 +3058,13 @@ claw_hname_show(struct device *dev, struct device_attribute *attr, char *buf) } static ssize_t -claw_hname_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +claw_hname_write(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct claw_privbk *priv; struct claw_env * p_env; - priv = dev->driver_data; + priv = dev_get_drvdata(dev); if (!priv) return -ENODEV; p_env = priv->p_env; @@ -3088,7 +3088,7 @@ claw_adname_show(struct device *dev, struct device_attribute *attr, char *buf) struct claw_privbk *priv; struct claw_env * p_env; - priv = dev->driver_data; + priv = dev_get_drvdata(dev); if (!priv) return -ENODEV; p_env = priv->p_env; @@ -3096,12 +3096,13 @@ claw_adname_show(struct device *dev, struct device_attribute *attr, char *buf) } static ssize_t -claw_adname_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +claw_adname_write(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct claw_privbk *priv; struct claw_env * p_env; - priv = dev->driver_data; + priv = dev_get_drvdata(dev); if (!priv) return -ENODEV; p_env = priv->p_env; @@ -3125,7 +3126,7 @@ claw_apname_show(struct device *dev, struct device_attribute *attr, char *buf) struct claw_privbk *priv; struct claw_env * p_env; - priv = dev->driver_data; + priv = dev_get_drvdata(dev); if (!priv) return -ENODEV; p_env = priv->p_env; @@ -3134,12 +3135,13 @@ claw_apname_show(struct device *dev, struct device_attribute *attr, char *buf) } static ssize_t -claw_apname_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +claw_apname_write(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct claw_privbk *priv; struct claw_env * p_env; - priv = dev->driver_data; + priv = dev_get_drvdata(dev); if (!priv) return -ENODEV; p_env = priv->p_env; @@ -3173,7 +3175,7 @@ claw_wbuff_show(struct device *dev, struct device_attribute *attr, char *buf) struct claw_privbk *priv; struct claw_env * p_env; - priv = dev->driver_data; + priv = dev_get_drvdata(dev); if (!priv) return -ENODEV; p_env = priv->p_env; @@ -3181,13 +3183,14 @@ claw_wbuff_show(struct device *dev, struct device_attribute *attr, char *buf) } static ssize_t -claw_wbuff_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +claw_wbuff_write(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct claw_privbk *priv; struct claw_env * p_env; int nnn,max; - priv = dev->driver_data; + priv = dev_get_drvdata(dev); if (!priv) return -ENODEV; p_env = priv->p_env; @@ -3214,7 +3217,7 @@ claw_rbuff_show(struct device *dev, struct device_attribute *attr, char *buf) struct claw_privbk *priv; struct claw_env * p_env; - priv = dev->driver_data; + priv = dev_get_drvdata(dev); if (!priv) return -ENODEV; p_env = priv->p_env; @@ -3222,13 +3225,14 @@ claw_rbuff_show(struct device *dev, struct device_attribute *attr, char *buf) } static ssize_t -claw_rbuff_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +claw_rbuff_write(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct claw_privbk *priv; struct claw_env *p_env; int nnn,max; - priv = dev->driver_data; + priv = dev_get_drvdata(dev); if (!priv) return -ENODEV; p_env = priv->p_env; @@ -3246,7 +3250,6 @@ claw_rbuff_write(struct device *dev, struct device_attribute *attr, const char * CLAW_DBF_TEXT_(2, setup, "RB=%d", p_env->read_buffers); return count; } - static DEVICE_ATTR(read_buffer, 0644, claw_rbuff_show, claw_rbuff_write); static struct attribute *claw_attr[] = { @@ -3257,36 +3260,73 @@ static struct attribute *claw_attr[] = { &dev_attr_host_name.attr, NULL, }; - static struct attribute_group claw_attr_group = { .attrs = claw_attr, }; +static const struct attribute_group *claw_attr_groups[] = { + &claw_attr_group, + NULL, +}; +static const struct device_type claw_devtype = { + .name = "claw", + .groups = claw_attr_groups, +}; -static int -claw_add_files(struct device *dev) +/*----------------------------------------------------------------* + * claw_probe * + * this function is called for each CLAW device. * + *----------------------------------------------------------------*/ +static int claw_probe(struct ccwgroup_device *cgdev) { - CLAW_DBF_TEXT(2, setup, "add_file"); - return sysfs_create_group(&dev->kobj, &claw_attr_group); -} + struct claw_privbk *privptr = NULL; -static void -claw_remove_files(struct device *dev) -{ - CLAW_DBF_TEXT(2, setup, "rem_file"); - sysfs_remove_group(&dev->kobj, &claw_attr_group); -} + CLAW_DBF_TEXT(2, setup, "probe"); + if (!get_device(&cgdev->dev)) + return -ENODEV; + privptr = kzalloc(sizeof(struct claw_privbk), GFP_KERNEL); + dev_set_drvdata(&cgdev->dev, privptr); + if (privptr == NULL) { + probe_error(cgdev); + put_device(&cgdev->dev); + CLAW_DBF_TEXT_(2, setup, "probex%d", -ENOMEM); + return -ENOMEM; + } + privptr->p_mtc_envelope = kzalloc(MAX_ENVELOPE_SIZE, GFP_KERNEL); + privptr->p_env = kzalloc(sizeof(struct claw_env), GFP_KERNEL); + if ((privptr->p_mtc_envelope == NULL) || (privptr->p_env == NULL)) { + probe_error(cgdev); + put_device(&cgdev->dev); + CLAW_DBF_TEXT_(2, setup, "probex%d", -ENOMEM); + return -ENOMEM; + } + memcpy(privptr->p_env->adapter_name, WS_NAME_NOT_DEF, 8); + memcpy(privptr->p_env->host_name, WS_NAME_NOT_DEF, 8); + memcpy(privptr->p_env->api_type, WS_NAME_NOT_DEF, 8); + privptr->p_env->packing = 0; + privptr->p_env->write_buffers = 5; + privptr->p_env->read_buffers = 5; + privptr->p_env->read_size = CLAW_FRAME_SIZE; + privptr->p_env->write_size = CLAW_FRAME_SIZE; + privptr->p_env->p_priv = privptr; + cgdev->cdev[0]->handler = claw_irq_handler; + cgdev->cdev[1]->handler = claw_irq_handler; + cgdev->dev.type = &claw_devtype; + CLAW_DBF_TEXT(2, setup, "prbext 0"); + + return 0; +} /* end of claw_probe */ /*--------------------------------------------------------------------* * claw_init and cleanup * *---------------------------------------------------------------------*/ -static void __exit -claw_cleanup(void) +static void __exit claw_cleanup(void) { - unregister_cu3088_discipline(&claw_group_driver); + ccwgroup_driver_unregister(&claw_group_driver); + ccw_driver_unregister(&claw_ccw_driver); + root_device_unregister(claw_root_dev); claw_unregister_debug_facility(); - printk(KERN_INFO "claw: Driver unloaded\n"); - + pr_info("Driver unloaded\n"); } /** @@ -3295,26 +3335,40 @@ claw_cleanup(void) * * @return 0 on success, !0 on error. */ -static int __init -claw_init(void) +static int __init claw_init(void) { int ret = 0; - printk(KERN_INFO "claw: starting driver\n"); + pr_info("Loading %s\n", version); ret = claw_register_debug_facility(); if (ret) { - printk(KERN_WARNING "claw: %s() debug_register failed %d\n", - __func__,ret); - return ret; + pr_err("Registering with the S/390 debug feature" + " failed with error code %d\n", ret); + goto out_err; } CLAW_DBF_TEXT(2, setup, "init_mod"); - ret = register_cu3088_discipline(&claw_group_driver); - if (ret) { - CLAW_DBF_TEXT(2, setup, "init_bad"); - claw_unregister_debug_facility(); - printk(KERN_WARNING "claw; %s() cu3088 register failed %d\n", - __func__,ret); - } + claw_root_dev = root_device_register("claw"); + ret = PTR_ERR_OR_ZERO(claw_root_dev); + if (ret) + goto register_err; + ret = ccw_driver_register(&claw_ccw_driver); + if (ret) + goto ccw_err; + claw_group_driver.driver.groups = claw_drv_attr_groups; + ret = ccwgroup_driver_register(&claw_group_driver); + if (ret) + goto ccwgroup_err; + return 0; + +ccwgroup_err: + ccw_driver_unregister(&claw_ccw_driver); +ccw_err: + root_device_unregister(claw_root_dev); +register_err: + CLAW_DBF_TEXT(2, setup, "init_bad"); + claw_unregister_debug_facility(); +out_err: + pr_err("Initializing the claw device driver failed\n"); return ret; } @@ -3323,5 +3377,5 @@ module_exit(claw_cleanup); MODULE_AUTHOR("Andy Richter <richtera@us.ibm.com>"); MODULE_DESCRIPTION("Linux for System z CLAW Driver\n" \ - "Copyright 2000,2008 IBM Corporation\n"); + "Copyright IBM Corp. 2000, 2008\n"); MODULE_LICENSE("GPL"); diff --git a/drivers/s390/net/claw.h b/drivers/s390/net/claw.h index 1a89d989f34..3339b9b607b 100644 --- a/drivers/s390/net/claw.h +++ b/drivers/s390/net/claw.h @@ -74,8 +74,8 @@ #define MAX_ENVELOPE_SIZE 65536 #define CLAW_DEFAULT_MTU_SIZE 4096 #define DEF_PACK_BUFSIZE 32768 -#define READ 0 -#define WRITE 1 +#define READ_CHANNEL 0 +#define WRITE_CHANNEL 1 #define TB_TX 0 /* sk buffer handling in process */ #define TB_STOP 1 /* network device stop in process */ @@ -85,7 +85,7 @@ #define CLAW_MAX_DEV 256 /* max claw devices */ #define MAX_NAME_LEN 8 /* host name, adapter name length */ #define CLAW_FRAME_SIZE 4096 -#define CLAW_ID_SIZE BUS_ID_SIZE+3 +#define CLAW_ID_SIZE 20+3 /* state machine codes used in claw_irq_handler */ @@ -114,21 +114,27 @@ do { \ debug_event(claw_dbf_##name,level,(void*)(addr),len); \ } while (0) -/* Allow to sort out low debug levels early to avoid wasted sprints */ -static inline int claw_dbf_passes(debug_info_t *dbf_grp, int level) -{ - return (level <= dbf_grp->level); -} - #define CLAW_DBF_TEXT_(level,name,text...) \ do { \ - if (claw_dbf_passes(claw_dbf_##name, level)) { \ + if (debug_level_enabled(claw_dbf_##name, level)) { \ sprintf(debug_buffer, text); \ debug_text_event(claw_dbf_##name, level, \ debug_buffer); \ } \ } while (0) +/** + * Enum for classifying detected devices. + */ +enum claw_channel_types { + /* Device is not a channel */ + claw_channel_type_none, + + /* Device is a CLAW channel device */ + claw_channel_type_claw +}; + + /******************************************************* * Define Control Blocks * * * diff --git a/drivers/s390/net/ctcm_dbug.c b/drivers/s390/net/ctcm_dbug.c index 1ca58f15347..8363f1c966e 100644 --- a/drivers/s390/net/ctcm_dbug.c +++ b/drivers/s390/net/ctcm_dbug.c @@ -1,6 +1,4 @@ /* - * drivers/s390/net/ctcm_dbug.c - * * Copyright IBM Corp. 2001, 2007 * Authors: Peter Tiedemann (ptiedem@de.ibm.com) * @@ -10,7 +8,6 @@ #include <linux/string.h> #include <linux/kernel.h> #include <linux/errno.h> -#include <linux/slab.h> #include <linux/ctype.h> #include <linux/sysctl.h> #include <linux/module.h> @@ -69,7 +66,7 @@ void ctcm_dbf_longtext(enum ctcm_dbf_names dbf_nix, int level, char *fmt, ...) char dbf_txt_buf[64]; va_list args; - if (level > (ctcm_dbf[dbf_nix].id)->level) + if (!debug_level_enabled(ctcm_dbf[dbf_nix].id, level)) return; va_start(args, fmt); vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args); diff --git a/drivers/s390/net/ctcm_dbug.h b/drivers/s390/net/ctcm_dbug.h index 26966d0b9ab..47bf0501995 100644 --- a/drivers/s390/net/ctcm_dbug.h +++ b/drivers/s390/net/ctcm_dbug.h @@ -1,6 +1,4 @@ /* - * drivers/s390/net/ctcm_dbug.h - * * Copyright IBM Corp. 2001, 2007 * Authors: Peter Tiedemann (ptiedem@de.ibm.com) * diff --git a/drivers/s390/net/ctcm_fsms.c b/drivers/s390/net/ctcm_fsms.c index 42776550acf..fb92524d24e 100644 --- a/drivers/s390/net/ctcm_fsms.c +++ b/drivers/s390/net/ctcm_fsms.c @@ -1,6 +1,4 @@ /* - * drivers/s390/net/ctcm_fsms.c - * * Copyright IBM Corp. 2001, 2007 * Authors: Fritz Elfert (felfert@millenux.com) * Peter Tiedemann (ptiedem@de.ibm.com) @@ -13,6 +11,9 @@ #undef DEBUGDATA #undef DEBUGCCW +#define KMSG_COMPONENT "ctcm" +#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt + #include <linux/module.h> #include <linux/init.h> #include <linux/kernel.h> @@ -41,7 +42,6 @@ #include <asm/idals.h> #include "fsm.h" -#include "cu3088.h" #include "ctcm_dbug.h" #include "ctcm_main.h" @@ -182,7 +182,7 @@ static void ctcmpc_chx_resend(fsm_instance *, int, void *); static void ctcmpc_chx_send_sweep(fsm_instance *fsm, int event, void *arg); /** - * Check return code of a preceeding ccw_device call, halt_IO etc... + * Check return code of a preceding ccw_device call, halt_IO etc... * * ch : The channel, the error belongs to. * Returns the error code (!= 0) to inspect. @@ -190,21 +190,22 @@ static void ctcmpc_chx_send_sweep(fsm_instance *fsm, int event, void *arg); void ctcm_ccw_check_rc(struct channel *ch, int rc, char *msg) { CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, - "%s(%s): %s: %04x\n", - CTCM_FUNTAIL, ch->id, msg, rc); + "%s(%s): %s: %04x\n", + CTCM_FUNTAIL, ch->id, msg, rc); switch (rc) { case -EBUSY: - ctcm_pr_warn("%s (%s): Busy !\n", ch->id, msg); + pr_info("%s: The communication peer is busy\n", + ch->id); fsm_event(ch->fsm, CTC_EVENT_IO_EBUSY, ch); break; case -ENODEV: - ctcm_pr_emerg("%s (%s): Invalid device called for IO\n", - ch->id, msg); + pr_err("%s: The specified target device is not valid\n", + ch->id); fsm_event(ch->fsm, CTC_EVENT_IO_ENODEV, ch); break; default: - ctcm_pr_emerg("%s (%s): Unknown error in do_IO %04x\n", - ch->id, msg, rc); + pr_err("An I/O operation resulted in error %04x\n", + rc); fsm_event(ch->fsm, CTC_EVENT_IO_UNKNOWN, ch); } } @@ -406,9 +407,8 @@ static void chx_rx(fsm_instance *fi, int event, void *arg) priv->stats.rx_length_errors++; goto again; } - block_len -= 2; - if (block_len > 0) { - *((__u16 *)skb->data) = block_len; + if (block_len > 2) { + *((__u16 *)skb->data) = block_len - 2; ctcm_unpack_skb(ch, skb); } again: @@ -452,7 +452,7 @@ static void chx_firstio(fsm_instance *fi, int event, void *arg) if ((fsmstate == CTC_STATE_SETUPWAIT) && (ch->protocol == CTCM_PROTO_OS390)) { /* OS/390 resp. z/OS */ - if (CHANNEL_DIRECTION(ch->flags) == READ) { + if (CHANNEL_DIRECTION(ch->flags) == CTCM_READ) { *((__u16 *)ch->trans_skb->data) = CTCM_INITIAL_BLOCKLEN; fsm_addtimer(&ch->timer, CTCM_TIME_5_SEC, CTC_EVENT_TIMER, ch); @@ -470,14 +470,14 @@ static void chx_firstio(fsm_instance *fi, int event, void *arg) * if in compatibility mode, since VM TCP delays the initial * frame until it has some data to send. */ - if ((CHANNEL_DIRECTION(ch->flags) == WRITE) || + if ((CHANNEL_DIRECTION(ch->flags) == CTCM_WRITE) || (ch->protocol != CTCM_PROTO_S390)) fsm_addtimer(&ch->timer, CTCM_TIME_5_SEC, CTC_EVENT_TIMER, ch); *((__u16 *)ch->trans_skb->data) = CTCM_INITIAL_BLOCKLEN; ch->ccw[1].count = 2; /* Transfer only length */ - fsm_newstate(fi, (CHANNEL_DIRECTION(ch->flags) == READ) + fsm_newstate(fi, (CHANNEL_DIRECTION(ch->flags) == CTCM_READ) ? CTC_STATE_RXINIT : CTC_STATE_TXINIT); rc = ccw_device_start(ch->cdev, &ch->ccw[0], (unsigned long)ch, 0xff, 0); @@ -493,7 +493,7 @@ static void chx_firstio(fsm_instance *fi, int event, void *arg) * reply from VM TCP which brings up the RX channel to it's * final state. */ - if ((CHANNEL_DIRECTION(ch->flags) == READ) && + if ((CHANNEL_DIRECTION(ch->flags) == CTCM_READ) && (ch->protocol == CTCM_PROTO_S390)) { struct net_device *dev = ch->netdev; struct ctcm_priv *priv = dev->ml_priv; @@ -598,15 +598,15 @@ static void ctcm_chx_start(fsm_instance *fi, int event, void *arg) int rc; CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO, "%s(%s): %s", - CTCM_FUNTAIL, ch->id, - (CHANNEL_DIRECTION(ch->flags) == READ) ? "RX" : "TX"); + CTCM_FUNTAIL, ch->id, + (CHANNEL_DIRECTION(ch->flags) == CTCM_READ) ? "RX" : "TX"); if (ch->trans_skb != NULL) { clear_normalized_cda(&ch->ccw[1]); dev_kfree_skb(ch->trans_skb); ch->trans_skb = NULL; } - if (CHANNEL_DIRECTION(ch->flags) == READ) { + if (CHANNEL_DIRECTION(ch->flags) == CTCM_READ) { ch->ccw[1].cmd_code = CCW_CMD_READ; ch->ccw[1].flags = CCW_FLAG_SLI; ch->ccw[1].count = 0; @@ -620,7 +620,8 @@ static void ctcm_chx_start(fsm_instance *fi, int event, void *arg) "%s(%s): %s trans_skb alloc delayed " "until first transfer", CTCM_FUNTAIL, ch->id, - (CHANNEL_DIRECTION(ch->flags) == READ) ? "RX" : "TX"); + (CHANNEL_DIRECTION(ch->flags) == CTCM_READ) ? + "RX" : "TX"); } ch->ccw[0].cmd_code = CCW_CMD_PREPARE; ch->ccw[0].flags = CCW_FLAG_SLI | CCW_FLAG_CC; @@ -718,7 +719,7 @@ static void ctcm_chx_cleanup(fsm_instance *fi, int state, ch->th_seg = 0x00; ch->th_seq_num = 0x00; - if (CHANNEL_DIRECTION(ch->flags) == READ) { + if (CHANNEL_DIRECTION(ch->flags) == CTCM_READ) { skb_queue_purge(&ch->io_queue); fsm_event(priv->fsm, DEV_EVENT_RXDOWN, dev); } else { @@ -797,7 +798,8 @@ static void ctcm_chx_setuperr(fsm_instance *fi, int event, void *arg) fsm_newstate(fi, CTC_STATE_STARTRETRY); fsm_deltimer(&ch->timer); fsm_addtimer(&ch->timer, CTCM_TIME_5_SEC, CTC_EVENT_TIMER, ch); - if (!IS_MPC(ch) && (CHANNEL_DIRECTION(ch->flags) == READ)) { + if (!IS_MPC(ch) && + (CHANNEL_DIRECTION(ch->flags) == CTCM_READ)) { int rc = ccw_device_halt(ch->cdev, (unsigned long)ch); if (rc != 0) ctcm_ccw_check_rc(ch, rc, @@ -809,10 +811,10 @@ static void ctcm_chx_setuperr(fsm_instance *fi, int event, void *arg) CTCM_DBF_TEXT_(ERROR, CTC_DBF_CRIT, "%s(%s) : %s error during %s channel setup state=%s\n", CTCM_FUNTAIL, dev->name, ctc_ch_event_names[event], - (CHANNEL_DIRECTION(ch->flags) == READ) ? "RX" : "TX", + (CHANNEL_DIRECTION(ch->flags) == CTCM_READ) ? "RX" : "TX", fsm_getstate_str(fi)); - if (CHANNEL_DIRECTION(ch->flags) == READ) { + if (CHANNEL_DIRECTION(ch->flags) == CTCM_READ) { fsm_newstate(fi, CTC_STATE_RXERR); fsm_event(priv->fsm, DEV_EVENT_RXDOWN, dev); } else { @@ -886,8 +888,15 @@ static void ctcm_chx_rxiniterr(fsm_instance *fi, int event, void *arg) fsm_newstate(fi, CTC_STATE_RXERR); fsm_event(priv->fsm, DEV_EVENT_RXDOWN, dev); } - } else - ctcm_pr_warn("%s: Error during RX init handshake\n", dev->name); + } else { + CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, + "%s(%s): %s in %s", CTCM_FUNTAIL, ch->id, + ctc_ch_event_names[event], fsm_getstate_str(fi)); + + dev_warn(&dev->dev, + "Initialization failed with RX/TX init handshake " + "error %s\n", ctc_ch_event_names[event]); + } } /** @@ -936,7 +945,7 @@ static void ctcm_chx_rxdisc(fsm_instance *fi, int event, void *arg) fsm_event(priv->fsm, DEV_EVENT_TXDOWN, dev); fsm_newstate(fi, CTC_STATE_DTERM); - ch2 = priv->channel[WRITE]; + ch2 = priv->channel[CTCM_WRITE]; fsm_newstate(ch2->fsm, CTC_STATE_DTERM); ccw_device_halt(ch->cdev, (unsigned long)ch); @@ -969,7 +978,9 @@ static void ctcm_chx_txiniterr(fsm_instance *fi, int event, void *arg) "%s(%s): %s in %s", CTCM_FUNTAIL, ch->id, ctc_ch_event_names[event], fsm_getstate_str(fi)); - ctcm_pr_warn("%s: Error during TX init handshake\n", dev->name); + dev_warn(&dev->dev, + "Initialization failed with RX/TX init handshake " + "error %s\n", ctc_ch_event_names[event]); } } @@ -1063,13 +1074,13 @@ static void ctcm_chx_iofatal(fsm_instance *fi, int event, void *arg) fsm_deltimer(&ch->timer); CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, "%s: %s: %s unrecoverable channel error", - CTCM_FUNTAIL, ch->id, rd == READ ? "RX" : "TX"); + CTCM_FUNTAIL, ch->id, rd == CTCM_READ ? "RX" : "TX"); if (IS_MPC(ch)) { priv->stats.tx_dropped++; priv->stats.tx_errors++; } - if (rd == READ) { + if (rd == CTCM_READ) { fsm_newstate(fi, CTC_STATE_RXERR); fsm_event(priv->fsm, DEV_EVENT_RXDOWN, dev); } else { @@ -1328,6 +1339,12 @@ static void ctcmpc_chx_txdone(fsm_instance *fi, int event, void *arg) spin_unlock(&ch->collect_lock); clear_normalized_cda(&ch->ccw[1]); + + CTCM_PR_DBGDATA("ccwcda=0x%p data=0x%p\n", + (void *)(unsigned long)ch->ccw[1].cda, + ch->trans_skb->data); + ch->ccw[1].count = ch->max_bufsize; + if (set_normalized_cda(&ch->ccw[1], ch->trans_skb->data)) { dev_kfree_skb_any(ch->trans_skb); ch->trans_skb = NULL; @@ -1337,6 +1354,11 @@ static void ctcmpc_chx_txdone(fsm_instance *fi, int event, void *arg) fsm_event(priv->mpcg->fsm, MPCG_EVENT_INOP, dev); return; } + + CTCM_PR_DBGDATA("ccwcda=0x%p data=0x%p\n", + (void *)(unsigned long)ch->ccw[1].cda, + ch->trans_skb->data); + ch->ccw[1].count = ch->trans_skb->len; fsm_addtimer(&ch->timer, CTCM_TIME_5_SEC, CTC_EVENT_TIMER, ch); ch->prof.send_stamp = current_kernel_time(); /* xtime */ @@ -1492,7 +1514,7 @@ static void ctcmpc_chx_firstio(fsm_instance *fi, int event, void *arg) switch (fsm_getstate(fi)) { case CTC_STATE_STARTRETRY: case CTC_STATE_SETUPWAIT: - if (CHANNEL_DIRECTION(ch->flags) == READ) { + if (CHANNEL_DIRECTION(ch->flags) == CTCM_READ) { ctcmpc_chx_rxidle(fi, event, arg); } else { fsm_newstate(fi, CTC_STATE_TXIDLE); @@ -1501,9 +1523,9 @@ static void ctcmpc_chx_firstio(fsm_instance *fi, int event, void *arg) goto done; default: break; - }; + } - fsm_newstate(fi, (CHANNEL_DIRECTION(ch->flags) == READ) + fsm_newstate(fi, (CHANNEL_DIRECTION(ch->flags) == CTCM_READ) ? CTC_STATE_RXINIT : CTC_STATE_TXINIT); done: @@ -1742,8 +1764,8 @@ static void ctcmpc_chx_send_sweep(fsm_instance *fsm, int event, void *arg) struct net_device *dev = ach->netdev; struct ctcm_priv *priv = dev->ml_priv; struct mpc_group *grp = priv->mpcg; - struct channel *wch = priv->channel[WRITE]; - struct channel *rch = priv->channel[READ]; + struct channel *wch = priv->channel[CTCM_WRITE]; + struct channel *rch = priv->channel[CTCM_READ]; struct sk_buff *skb; struct th_sweep *header; int rc = 0; @@ -2059,7 +2081,7 @@ static void dev_action_start(fsm_instance *fi, int event, void *arg) fsm_newstate(fi, DEV_STATE_STARTWAIT_RXTX); if (IS_MPC(priv)) priv->mpcg->channels_terminating = 0; - for (direction = READ; direction <= WRITE; direction++) { + for (direction = CTCM_READ; direction <= CTCM_WRITE; direction++) { struct channel *ch = priv->channel[direction]; fsm_event(ch->fsm, CTC_EVENT_START, ch); } @@ -2081,7 +2103,7 @@ static void dev_action_stop(fsm_instance *fi, int event, void *arg) CTCMY_DBF_DEV_NAME(SETUP, dev, ""); fsm_newstate(fi, DEV_STATE_STOPWAIT_RXTX); - for (direction = READ; direction <= WRITE; direction++) { + for (direction = CTCM_READ; direction <= CTCM_WRITE; direction++) { struct channel *ch = priv->channel[direction]; fsm_event(ch->fsm, CTC_EVENT_STOP, ch); ch->th_seq_num = 0x00; @@ -2101,14 +2123,11 @@ static void dev_action_restart(fsm_instance *fi, int event, void *arg) CTCMY_DBF_DEV_NAME(TRACE, dev, ""); if (IS_MPC(priv)) { - ctcm_pr_info("ctcm: %s Restarting Device and " - "MPC Group in 5 seconds\n", - dev->name); restart_timer = CTCM_TIME_1_SEC; } else { - ctcm_pr_info("%s: Restarting\n", dev->name); restart_timer = CTCM_TIME_5_SEC; } + dev_info(&dev->dev, "Restarting device\n"); dev_action_stop(fi, event, arg); fsm_event(priv->fsm, DEV_EVENT_STOP, dev); @@ -2150,16 +2169,16 @@ static void dev_action_chup(fsm_instance *fi, int event, void *arg) case DEV_STATE_STARTWAIT_RX: if (event == DEV_EVENT_RXUP) { fsm_newstate(fi, DEV_STATE_RUNNING); - ctcm_pr_info("%s: connected with remote side\n", - dev->name); + dev_info(&dev->dev, + "Connected with remote side\n"); ctcm_clear_busy(dev); } break; case DEV_STATE_STARTWAIT_TX: if (event == DEV_EVENT_TXUP) { fsm_newstate(fi, DEV_STATE_RUNNING); - ctcm_pr_info("%s: connected with remote side\n", - dev->name); + dev_info(&dev->dev, + "Connected with remote side\n"); ctcm_clear_busy(dev); } break; @@ -2175,11 +2194,11 @@ static void dev_action_chup(fsm_instance *fi, int event, void *arg) if (IS_MPC(priv)) { if (event == DEV_EVENT_RXUP) - mpc_channel_action(priv->channel[READ], - READ, MPC_CHANNEL_ADD); + mpc_channel_action(priv->channel[CTCM_READ], + CTCM_READ, MPC_CHANNEL_ADD); else - mpc_channel_action(priv->channel[WRITE], - WRITE, MPC_CHANNEL_ADD); + mpc_channel_action(priv->channel[CTCM_WRITE], + CTCM_WRITE, MPC_CHANNEL_ADD); } } @@ -2231,11 +2250,11 @@ static void dev_action_chdown(fsm_instance *fi, int event, void *arg) } if (IS_MPC(priv)) { if (event == DEV_EVENT_RXDOWN) - mpc_channel_action(priv->channel[READ], - READ, MPC_CHANNEL_REMOVE); + mpc_channel_action(priv->channel[CTCM_READ], + CTCM_READ, MPC_CHANNEL_REMOVE); else - mpc_channel_action(priv->channel[WRITE], - WRITE, MPC_CHANNEL_REMOVE); + mpc_channel_action(priv->channel[CTCM_WRITE], + CTCM_WRITE, MPC_CHANNEL_REMOVE); } } diff --git a/drivers/s390/net/ctcm_fsms.h b/drivers/s390/net/ctcm_fsms.h index 2326aba9807..c963d04799c 100644 --- a/drivers/s390/net/ctcm_fsms.h +++ b/drivers/s390/net/ctcm_fsms.h @@ -1,6 +1,4 @@ /* - * drivers/s390/net/ctcm_fsms.h - * * Copyright IBM Corp. 2001, 2007 * Authors: Fritz Elfert (felfert@millenux.com) * Peter Tiedemann (ptiedem@de.ibm.com) @@ -39,7 +37,6 @@ #include <asm/idals.h> #include "fsm.h" -#include "cu3088.h" #include "ctcm_main.h" /* diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c index b11fec24c7d..03b6ad03557 100644 --- a/drivers/s390/net/ctcm_main.c +++ b/drivers/s390/net/ctcm_main.c @@ -1,7 +1,5 @@ /* - * drivers/s390/net/ctcm_main.c - * - * Copyright IBM Corp. 2001, 2007 + * Copyright IBM Corp. 2001, 2009 * Author(s): * Original CTC driver(s): * Fritz Elfert (felfert@millenux.com) @@ -21,6 +19,9 @@ #undef DEBUGDATA #undef DEBUGCCW +#define KMSG_COMPONENT "ctcm" +#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt + #include <linux/module.h> #include <linux/init.h> #include <linux/kernel.h> @@ -48,12 +49,16 @@ #include <asm/idals.h> -#include "cu3088.h" #include "ctcm_fsms.h" #include "ctcm_main.h" /* Some common global variables */ +/** + * The root device for ctcm group devices + */ +static struct device *ctcm_root_dev; + /* * Linked list of all detected channels. */ @@ -102,7 +107,8 @@ void ctcm_unpack_skb(struct channel *ch, struct sk_buff *pskb) return; } pskb->protocol = ntohs(header->type); - if (header->length <= LL_HEADER_LENGTH) { + if ((header->length <= LL_HEADER_LENGTH) || + (len <= LL_HEADER_LENGTH)) { if (!(ch->logflags & LOG_FLAG_ILLEGALSIZE)) { CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, "%s(%s): Illegal packet size %d(%d,%d)" @@ -160,15 +166,12 @@ void ctcm_unpack_skb(struct channel *ch, struct sk_buff *pskb) priv->stats.rx_packets++; priv->stats.rx_bytes += skblen; netif_rx_ni(skb); - dev->last_rx = jiffies; if (len > 0) { skb_pull(pskb, header->length); if (skb_tailroom(pskb) < LL_HEADER_LENGTH) { - if (!(ch->logflags & LOG_FLAG_OVERRUN)) { - CTCM_DBF_DEV_NAME(TRACE, dev, - "Overrun in ctcm_unpack_skb"); - ch->logflags |= LOG_FLAG_OVERRUN; - } + CTCM_DBF_DEV_NAME(TRACE, dev, + "Overrun in ctcm_unpack_skb"); + ch->logflags |= LOG_FLAG_OVERRUN; return; } skb_put(pskb, LL_HEADER_LENGTH); @@ -245,7 +248,7 @@ static void channel_remove(struct channel *ch) * * returns Pointer to a channel or NULL if no matching channel available. */ -static struct channel *channel_get(enum channel_types type, +static struct channel *channel_get(enum ctcm_channel_types type, char *id, int direction) { struct channel *ch = channels; @@ -262,7 +265,7 @@ static struct channel *channel_get(enum channel_types type, else { ch->flags |= CHANNEL_FLAGS_INUSE; ch->flags &= ~CHANNEL_FLAGS_RWMASK; - ch->flags |= (direction == WRITE) + ch->flags |= (direction == CTCM_WRITE) ? CHANNEL_FLAGS_WRITE : CHANNEL_FLAGS_READ; fsm_newstate(ch->fsm, CTC_STATE_STOPPED); } @@ -277,18 +280,20 @@ static long ctcm_check_irb_error(struct ccw_device *cdev, struct irb *irb) CTCM_DBF_TEXT_(ERROR, CTC_DBF_WARN, "irb error %ld on device %s\n", - PTR_ERR(irb), cdev->dev.bus_id); + PTR_ERR(irb), dev_name(&cdev->dev)); switch (PTR_ERR(irb)) { case -EIO: - ctcm_pr_warn("i/o-error on device %s\n", cdev->dev.bus_id); + dev_err(&cdev->dev, + "An I/O-error occurred on the CTCM device\n"); break; case -ETIMEDOUT: - ctcm_pr_warn("timeout on device %s\n", cdev->dev.bus_id); + dev_err(&cdev->dev, + "An adapter hardware operation timed out\n"); break; default: - ctcm_pr_warn("unknown error %ld on device %s\n", - PTR_ERR(irb), cdev->dev.bus_id); + dev_err(&cdev->dev, + "An error occurred on the adapter hardware\n"); } return PTR_ERR(irb); } @@ -309,15 +314,17 @@ static inline void ccw_unit_check(struct channel *ch, __u8 sense) if (sense & SNS0_INTERVENTION_REQ) { if (sense & 0x01) { if (ch->sense_rc != 0x01) { - ctcm_pr_debug("%s: Interface disc. or Sel. " - "reset (remote)\n", ch->id); + pr_notice( + "%s: The communication peer has " + "disconnected\n", ch->id); ch->sense_rc = 0x01; } fsm_event(ch->fsm, CTC_EVENT_UC_RCRESET, ch); } else { if (ch->sense_rc != SNS0_INTERVENTION_REQ) { - ctcm_pr_debug("%s: System reset (remote)\n", - ch->id); + pr_notice( + "%s: The remote operating system is " + "not available\n", ch->id); ch->sense_rc = SNS0_INTERVENTION_REQ; } fsm_event(ch->fsm, CTC_EVENT_UC_RSRESET, ch); @@ -379,7 +386,8 @@ int ctcm_ch_alloc_buffer(struct channel *ch) CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, "%s(%s): %s trans_skb allocation error", CTCM_FUNTAIL, ch->id, - (CHANNEL_DIRECTION(ch->flags) == READ) ? "RX" : "TX"); + (CHANNEL_DIRECTION(ch->flags) == CTCM_READ) ? + "RX" : "TX"); return -ENOMEM; } @@ -390,7 +398,8 @@ int ctcm_ch_alloc_buffer(struct channel *ch) CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, "%s(%s): %s set norm_cda failed", CTCM_FUNTAIL, ch->id, - (CHANNEL_DIRECTION(ch->flags) == READ) ? "RX" : "TX"); + (CHANNEL_DIRECTION(ch->flags) == CTCM_READ) ? + "RX" : "TX"); return -ENOMEM; } @@ -551,6 +560,9 @@ static int ctcm_transmit_skb(struct channel *ch, struct sk_buff *skb) skb_queue_tail(&ch->io_queue, skb); ccw_idx = 3; } + if (do_debug_ccw) + ctcmpc_dumpit((char *)&ch->ccw[ccw_idx], + sizeof(struct ccw1) * 3); ch->retry = 0; fsm_newstate(ch->fsm, CTC_STATE_TX); fsm_addtimer(&ch->timer, CTCM_TIME_5_SEC, CTC_EVENT_TIMER, ch); @@ -594,14 +606,14 @@ static void ctcmpc_send_sweep_req(struct channel *rch) priv = dev->ml_priv; grp = priv->mpcg; - ch = priv->channel[WRITE]; + ch = priv->channel[CTCM_WRITE]; /* sweep processing is not complete until response and request */ /* has completed for all read channels in group */ if (grp->in_sweep == 0) { grp->in_sweep = 1; - grp->sweep_rsp_pend_num = grp->active_channels[READ]; - grp->sweep_req_pend_num = grp->active_channels[READ]; + grp->sweep_rsp_pend_num = grp->active_channels[CTCM_READ]; + grp->sweep_req_pend_num = grp->active_channels[CTCM_READ]; } sweep_skb = __dev_alloc_skb(MPC_BUFSIZE_DEFAULT, GFP_ATOMIC|GFP_DMA); @@ -660,7 +672,6 @@ static int ctcmpc_transmit_skb(struct channel *ch, struct sk_buff *skb) int ccw_idx; unsigned long hi; unsigned long saveflags = 0; /* avoids compiler warning */ - __u16 block_len; CTCM_PR_DEBUG("Enter %s: %s, cp=%i ch=0x%p id=%s state=%s\n", __func__, dev->name, smp_processor_id(), ch, @@ -707,7 +718,6 @@ static int ctcmpc_transmit_skb(struct channel *ch, struct sk_buff *skb) */ atomic_inc(&skb->users); - block_len = skb->len + TH_HEADER_LENGTH + PDU_HEADER_LENGTH; /* * IDAL support in CTCM is broken, so we have to * care about skb's above 2G ourselves. @@ -874,7 +884,7 @@ static int ctcm_tx(struct sk_buff *skb, struct net_device *dev) "%s(%s): NULL sk_buff passed", CTCM_FUNTAIL, dev->name); priv->stats.tx_dropped++; - return 0; + return NETDEV_TX_OK; } if (skb_headroom(skb) < (LL_HEADER_LENGTH + 2)) { CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, @@ -882,7 +892,7 @@ static int ctcm_tx(struct sk_buff *skb, struct net_device *dev) CTCM_FUNTAIL, dev->name, LL_HEADER_LENGTH + 2); dev_kfree_skb(skb); priv->stats.tx_dropped++; - return 0; + return NETDEV_TX_OK; } /* @@ -895,16 +905,16 @@ static int ctcm_tx(struct sk_buff *skb, struct net_device *dev) priv->stats.tx_dropped++; priv->stats.tx_errors++; priv->stats.tx_carrier_errors++; - return 0; + return NETDEV_TX_OK; } if (ctcm_test_and_set_busy(dev)) - return -EBUSY; + return NETDEV_TX_BUSY; dev->trans_start = jiffies; - if (ctcm_transmit_skb(priv->channel[WRITE], skb) != 0) - return 1; - return 0; + if (ctcm_transmit_skb(priv->channel[CTCM_WRITE], skb) != 0) + return NETDEV_TX_BUSY; + return NETDEV_TX_OK; } /* unmerged MPC variant of ctcm_tx */ @@ -985,7 +995,7 @@ static int ctcmpc_tx(struct sk_buff *skb, struct net_device *dev) } dev->trans_start = jiffies; - if (ctcmpc_transmit_skb(priv->channel[WRITE], skb) != 0) { + if (ctcmpc_transmit_skb(priv->channel[CTCM_WRITE], skb) != 0) { CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, "%s(%s): device error - dropped", CTCM_FUNTAIL, dev->name); @@ -1002,7 +1012,7 @@ done: if (do_debug) MPC_DBF_DEV_NAME(TRACE, dev, "exit"); - return 0; /* handle freeing of skb here */ + return NETDEV_TX_OK; /* handle freeing of skb here */ } @@ -1026,7 +1036,7 @@ static int ctcm_change_mtu(struct net_device *dev, int new_mtu) return -EINVAL; priv = dev->ml_priv; - max_bufsize = priv->channel[READ]->max_bufsize; + max_bufsize = priv->channel[CTCM_READ]->max_bufsize; if (IS_MPC(priv)) { if (new_mtu > max_bufsize - TH_HEADER_LENGTH) @@ -1092,12 +1102,24 @@ static void ctcm_free_netdevice(struct net_device *dev) struct mpc_group *ctcmpc_init_mpc_group(struct ctcm_priv *priv); +static const struct net_device_ops ctcm_netdev_ops = { + .ndo_open = ctcm_open, + .ndo_stop = ctcm_close, + .ndo_get_stats = ctcm_stats, + .ndo_change_mtu = ctcm_change_mtu, + .ndo_start_xmit = ctcm_tx, +}; + +static const struct net_device_ops ctcm_mpc_netdev_ops = { + .ndo_open = ctcm_open, + .ndo_stop = ctcm_close, + .ndo_get_stats = ctcm_stats, + .ndo_change_mtu = ctcm_change_mtu, + .ndo_start_xmit = ctcmpc_tx, +}; + void static ctcm_dev_setup(struct net_device *dev) { - dev->open = ctcm_open; - dev->stop = ctcm_close; - dev->get_stats = ctcm_stats; - dev->change_mtu = ctcm_change_mtu; dev->type = ARPHRD_SLIP; dev->tx_queue_len = 100; dev->flags = IFF_POINTOPOINT | IFF_NOARP; @@ -1131,7 +1153,7 @@ static struct net_device *ctcm_init_netdevice(struct ctcm_priv *priv) dev_fsm, dev_fsm_len, GFP_KERNEL); if (priv->fsm == NULL) { CTCMY_DBF_DEV(SETUP, dev, "init_fsm error"); - kfree(dev); + free_netdev(dev); return NULL; } fsm_newstate(priv->fsm, DEV_STATE_STOPPED); @@ -1142,7 +1164,7 @@ static struct net_device *ctcm_init_netdevice(struct ctcm_priv *priv) grp = ctcmpc_init_mpc_group(priv); if (grp == NULL) { MPC_DBF_DEV(SETUP, dev, "init_mpc_group error"); - kfree(dev); + free_netdev(dev); return NULL; } tasklet_init(&grp->mpc_tasklet2, @@ -1150,12 +1172,12 @@ static struct net_device *ctcm_init_netdevice(struct ctcm_priv *priv) dev->mtu = MPC_BUFSIZE_DEFAULT - TH_HEADER_LENGTH - PDU_HEADER_LENGTH; - dev->hard_start_xmit = ctcmpc_tx; + dev->netdev_ops = &ctcm_mpc_netdev_ops; dev->hard_header_len = TH_HEADER_LENGTH + PDU_HEADER_LENGTH; priv->buffer_size = MPC_BUFSIZE_DEFAULT; } else { dev->mtu = CTCM_BUFSIZE_DEFAULT - LL_HEADER_LENGTH - 2; - dev->hard_start_xmit = ctcm_tx; + dev->netdev_ops = &ctcm_netdev_ops; dev->hard_header_len = LL_HEADER_LENGTH + 2; } @@ -1182,7 +1204,7 @@ static void ctcm_irq_handler(struct ccw_device *cdev, int dstat; CTCM_DBF_TEXT_(TRACE, CTC_DBF_DEBUG, - "Enter %s(%s)", CTCM_FUNTAIL, &cdev->dev.bus_id); + "Enter %s(%s)", CTCM_FUNTAIL, dev_name(&cdev->dev)); if (ctcm_check_irb_error(cdev, irb)) return; @@ -1194,44 +1216,50 @@ static void ctcm_irq_handler(struct ccw_device *cdev, /* Check for unsolicited interrupts. */ if (cgdev == NULL) { - ctcm_pr_warn("ctcm: Got unsolicited irq: c-%02x d-%02x\n", - cstat, dstat); + CTCM_DBF_TEXT_(TRACE, CTC_DBF_ERROR, + "%s(%s) unsolicited irq: c-%02x d-%02x\n", + CTCM_FUNTAIL, dev_name(&cdev->dev), cstat, dstat); + dev_warn(&cdev->dev, + "The adapter received a non-specific IRQ\n"); return; } priv = dev_get_drvdata(&cgdev->dev); /* Try to extract channel from driver data. */ - if (priv->channel[READ]->cdev == cdev) - ch = priv->channel[READ]; - else if (priv->channel[WRITE]->cdev == cdev) - ch = priv->channel[WRITE]; + if (priv->channel[CTCM_READ]->cdev == cdev) + ch = priv->channel[CTCM_READ]; + else if (priv->channel[CTCM_WRITE]->cdev == cdev) + ch = priv->channel[CTCM_WRITE]; else { - ctcm_pr_err("ctcm: Can't determine channel for interrupt, " - "device %s\n", cdev->dev.bus_id); + dev_err(&cdev->dev, + "%s: Internal error: Can't determine channel for " + "interrupt device %s\n", + __func__, dev_name(&cdev->dev)); + /* Explain: inconsistent internal structures */ return; } dev = ch->netdev; if (dev == NULL) { - ctcm_pr_crit("ctcm: %s dev=NULL bus_id=%s, ch=0x%p\n", - __func__, cdev->dev.bus_id, ch); + dev_err(&cdev->dev, + "%s Internal error: net_device is NULL, ch = 0x%p\n", + __func__, ch); + /* Explain: inconsistent internal structures */ return; } - CTCM_DBF_TEXT_(TRACE, CTC_DBF_DEBUG, - "%s(%s): int. for %s: cstat=%02x dstat=%02x", - CTCM_FUNTAIL, dev->name, ch->id, cstat, dstat); - /* Copy interruption response block. */ memcpy(ch->irb, irb, sizeof(struct irb)); + /* Issue error message and return on subchannel error code */ if (irb->scsw.cmd.cstat) { - /* Check for good subchannel return code, otherwise error message */ fsm_event(ch->fsm, CTC_EVENT_SC_UNKNOWN, ch); - ctcm_pr_warn("%s: subchannel check for dev: %s - %02x %02x\n", - dev->name, ch->id, irb->scsw.cmd.cstat, - irb->scsw.cmd.dstat); + CTCM_DBF_TEXT_(TRACE, CTC_DBF_WARN, + "%s(%s): sub-ch check %s: cs=%02x ds=%02x", + CTCM_FUNTAIL, dev->name, ch->id, cstat, dstat); + dev_warn(&cdev->dev, + "A check occurred on the subchannel\n"); return; } @@ -1239,7 +1267,7 @@ static void ctcm_irq_handler(struct ccw_device *cdev, if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) { if ((irb->ecw[0] & ch->sense_rc) == 0) /* print it only once */ - CTCM_DBF_TEXT_(TRACE, CTC_DBF_INFO, + CTCM_DBF_TEXT_(TRACE, CTC_DBF_WARN, "%s(%s): sense=%02x, ds=%02x", CTCM_FUNTAIL, ch->id, irb->ecw[0], dstat); ccw_unit_check(ch, irb->ecw[0]); @@ -1266,6 +1294,11 @@ static void ctcm_irq_handler(struct ccw_device *cdev, } +static const struct device_type ctcm_devtype = { + .name = "ctcm", + .groups = ctcm_attr_groups, +}; + /** * Add ctcm specific attributes. * Add ctcm private data. @@ -1277,7 +1310,6 @@ static void ctcm_irq_handler(struct ccw_device *cdev, static int ctcm_probe_device(struct ccwgroup_device *cgdev) { struct ctcm_priv *priv; - int rc; CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO, "%s %p", @@ -1294,17 +1326,11 @@ static int ctcm_probe_device(struct ccwgroup_device *cgdev) put_device(&cgdev->dev); return -ENOMEM; } - - rc = ctcm_add_files(&cgdev->dev); - if (rc) { - kfree(priv); - put_device(&cgdev->dev); - return rc; - } priv->buffer_size = CTCM_BUFSIZE_DEFAULT; cgdev->cdev[0]->handler = ctcm_irq_handler; cgdev->cdev[1]->handler = ctcm_irq_handler; dev_set_drvdata(&cgdev->dev, priv); + cgdev->dev.type = &ctcm_devtype; return 0; } @@ -1319,7 +1345,7 @@ static int ctcm_probe_device(struct ccwgroup_device *cgdev) * * returns 0 on success, !0 on error. */ -static int add_channel(struct ccw_device *cdev, enum channel_types type, +static int add_channel(struct ccw_device *cdev, enum ctcm_channel_types type, struct ctcm_priv *priv) { struct channel **c = &channels; @@ -1329,7 +1355,7 @@ static int add_channel(struct ccw_device *cdev, enum channel_types type, CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO, "%s(%s), type %d, proto %d", - __func__, cdev->dev.bus_id, type, priv->protocol); + __func__, dev_name(&cdev->dev), type, priv->protocol); ch = kzalloc(sizeof(struct channel), GFP_KERNEL); if (ch == NULL) @@ -1337,8 +1363,7 @@ static int add_channel(struct ccw_device *cdev, enum channel_types type, ch->protocol = priv->protocol; if (IS_MPC(priv)) { - ch->discontact_th = (struct th_header *) - kzalloc(TH_HEADER_LENGTH, gfp_type()); + ch->discontact_th = kzalloc(TH_HEADER_LENGTH, gfp_type()); if (ch->discontact_th == NULL) goto nomem_return; @@ -1352,13 +1377,12 @@ static int add_channel(struct ccw_device *cdev, enum channel_types type, } else ccw_num = 8; - ch->ccw = (struct ccw1 *) - kzalloc(ccw_num * sizeof(struct ccw1), GFP_KERNEL | GFP_DMA); + ch->ccw = kzalloc(ccw_num * sizeof(struct ccw1), GFP_KERNEL | GFP_DMA); if (ch->ccw == NULL) goto nomem_return; ch->cdev = cdev; - snprintf(ch->id, CTCM_ID_SIZE, "ch-%s", cdev->dev.bus_id); + snprintf(ch->id, CTCM_ID_SIZE, "ch-%s", dev_name(&cdev->dev)); ch->type = type; /** @@ -1430,7 +1454,7 @@ static int add_channel(struct ccw_device *cdev, enum channel_types type, ch_fsm_len, GFP_KERNEL); } if (ch->fsm == NULL) - goto free_return; + goto nomem_return; fsm_newstate(ch->fsm, CTC_STATE_IDLE); @@ -1478,13 +1502,13 @@ free_return: /* note that all channel pointers are 0 or valid */ /* * Return type of a detected device. */ -static enum channel_types get_channel_type(struct ccw_device_id *id) +static enum ctcm_channel_types get_channel_type(struct ccw_device_id *id) { - enum channel_types type; - type = (enum channel_types)id->driver_info; + enum ctcm_channel_types type; + type = (enum ctcm_channel_types)id->driver_info; - if (type == channel_type_ficon) - type = channel_type_escon; + if (type == ctcm_channel_type_ficon) + type = ctcm_channel_type_escon; return type; } @@ -1502,59 +1526,73 @@ static int ctcm_new_device(struct ccwgroup_device *cgdev) char read_id[CTCM_ID_SIZE]; char write_id[CTCM_ID_SIZE]; int direction; - enum channel_types type; + enum ctcm_channel_types type; struct ctcm_priv *priv; struct net_device *dev; struct ccw_device *cdev0; struct ccw_device *cdev1; + struct channel *readc; + struct channel *writec; int ret; + int result; priv = dev_get_drvdata(&cgdev->dev); - if (!priv) - return -ENODEV; + if (!priv) { + result = -ENODEV; + goto out_err_result; + } cdev0 = cgdev->cdev[0]; cdev1 = cgdev->cdev[1]; type = get_channel_type(&cdev0->id); - snprintf(read_id, CTCM_ID_SIZE, "ch-%s", cdev0->dev.bus_id); - snprintf(write_id, CTCM_ID_SIZE, "ch-%s", cdev1->dev.bus_id); + snprintf(read_id, CTCM_ID_SIZE, "ch-%s", dev_name(&cdev0->dev)); + snprintf(write_id, CTCM_ID_SIZE, "ch-%s", dev_name(&cdev1->dev)); ret = add_channel(cdev0, type, priv); - if (ret) - return ret; + if (ret) { + result = ret; + goto out_err_result; + } ret = add_channel(cdev1, type, priv); - if (ret) - return ret; + if (ret) { + result = ret; + goto out_remove_channel1; + } ret = ccw_device_set_online(cdev0); if (ret != 0) { - /* may be ok to fail now - can be done later */ CTCM_DBF_TEXT_(TRACE, CTC_DBF_NOTICE, "%s(%s) set_online rc=%d", CTCM_FUNTAIL, read_id, ret); + result = -EIO; + goto out_remove_channel2; } ret = ccw_device_set_online(cdev1); if (ret != 0) { - /* may be ok to fail now - can be done later */ CTCM_DBF_TEXT_(TRACE, CTC_DBF_NOTICE, "%s(%s) set_online rc=%d", CTCM_FUNTAIL, write_id, ret); + + result = -EIO; + goto out_ccw1; } dev = ctcm_init_netdevice(priv); - if (dev == NULL) - goto out; + if (dev == NULL) { + result = -ENODEV; + goto out_ccw2; + } - for (direction = READ; direction <= WRITE; direction++) { + for (direction = CTCM_READ; direction <= CTCM_WRITE; direction++) { priv->channel[direction] = - channel_get(type, direction == READ ? read_id : write_id, - direction); + channel_get(type, direction == CTCM_READ ? + read_id : write_id, direction); if (priv->channel[direction] == NULL) { - if (direction == WRITE) - channel_free(priv->channel[READ]); + if (direction == CTCM_WRITE) + channel_free(priv->channel[CTCM_READ]); goto out_dev; } priv->channel[direction]->netdev = dev; @@ -1564,29 +1602,38 @@ static int ctcm_new_device(struct ccwgroup_device *cgdev) /* sysfs magic */ SET_NETDEV_DEV(dev, &cgdev->dev); - if (register_netdev(dev)) - goto out_dev; - - if (ctcm_add_attributes(&cgdev->dev)) { - unregister_netdev(dev); - goto out_dev; + if (register_netdev(dev)) { + result = -ENODEV; + goto out_dev; } strlcpy(priv->fsm->name, dev->name, sizeof(priv->fsm->name)); + dev_info(&dev->dev, + "setup OK : r/w = %s/%s, protocol : %d\n", + priv->channel[CTCM_READ]->id, + priv->channel[CTCM_WRITE]->id, priv->protocol); + CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO, "setup(%s) OK : r/w = %s/%s, protocol : %d", dev->name, - priv->channel[READ]->id, - priv->channel[WRITE]->id, priv->protocol); + priv->channel[CTCM_READ]->id, + priv->channel[CTCM_WRITE]->id, priv->protocol); return 0; out_dev: ctcm_free_netdevice(dev); -out: +out_ccw2: ccw_device_set_offline(cgdev->cdev[1]); +out_ccw1: ccw_device_set_offline(cgdev->cdev[0]); - - return -ENODEV; +out_remove_channel2: + readc = channel_get(type, read_id, CTCM_READ); + channel_remove(readc); +out_remove_channel1: + writec = channel_get(type, write_id, CTCM_WRITE); + channel_remove(writec); +out_err_result: + return result; } /** @@ -1605,19 +1652,18 @@ static int ctcm_shutdown_device(struct ccwgroup_device *cgdev) if (!priv) return -ENODEV; - if (priv->channel[READ]) { - dev = priv->channel[READ]->netdev; + if (priv->channel[CTCM_READ]) { + dev = priv->channel[CTCM_READ]->netdev; CTCM_DBF_DEV(SETUP, dev, ""); /* Close the device */ ctcm_close(dev); dev->flags &= ~IFF_RUNNING; - ctcm_remove_attributes(&cgdev->dev); - channel_free(priv->channel[READ]); + channel_free(priv->channel[CTCM_READ]); } else dev = NULL; - if (priv->channel[WRITE]) - channel_free(priv->channel[WRITE]); + if (priv->channel[CTCM_WRITE]) + channel_free(priv->channel[CTCM_WRITE]); if (dev) { unregister_netdev(dev); @@ -1630,11 +1676,11 @@ static int ctcm_shutdown_device(struct ccwgroup_device *cgdev) ccw_device_set_offline(cgdev->cdev[1]); ccw_device_set_offline(cgdev->cdev[0]); - if (priv->channel[READ]) - channel_remove(priv->channel[READ]); - if (priv->channel[WRITE]) - channel_remove(priv->channel[WRITE]); - priv->channel[READ] = priv->channel[WRITE] = NULL; + if (priv->channel[CTCM_READ]) + channel_remove(priv->channel[CTCM_READ]); + if (priv->channel[CTCM_WRITE]) + channel_remove(priv->channel[CTCM_WRITE]); + priv->channel[CTCM_READ] = priv->channel[CTCM_WRITE] = NULL; return 0; @@ -1645,33 +1691,108 @@ static void ctcm_remove_device(struct ccwgroup_device *cgdev) { struct ctcm_priv *priv = dev_get_drvdata(&cgdev->dev); - BUG_ON(priv == NULL); - CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO, - "removing device %s, r/w = %s/%s, proto : %d", - priv->channel[READ]->netdev->name, - priv->channel[READ]->id, priv->channel[WRITE]->id, - priv->protocol); + "removing device %p, proto : %d", + cgdev, priv->protocol); if (cgdev->state == CCWGROUP_ONLINE) ctcm_shutdown_device(cgdev); - ctcm_remove_files(&cgdev->dev); dev_set_drvdata(&cgdev->dev, NULL); kfree(priv); put_device(&cgdev->dev); } +static int ctcm_pm_suspend(struct ccwgroup_device *gdev) +{ + struct ctcm_priv *priv = dev_get_drvdata(&gdev->dev); + + if (gdev->state == CCWGROUP_OFFLINE) + return 0; + netif_device_detach(priv->channel[CTCM_READ]->netdev); + ctcm_close(priv->channel[CTCM_READ]->netdev); + if (!wait_event_timeout(priv->fsm->wait_q, + fsm_getstate(priv->fsm) == DEV_STATE_STOPPED, CTCM_TIME_5_SEC)) { + netif_device_attach(priv->channel[CTCM_READ]->netdev); + return -EBUSY; + } + ccw_device_set_offline(gdev->cdev[1]); + ccw_device_set_offline(gdev->cdev[0]); + return 0; +} + +static int ctcm_pm_resume(struct ccwgroup_device *gdev) +{ + struct ctcm_priv *priv = dev_get_drvdata(&gdev->dev); + int rc; + + if (gdev->state == CCWGROUP_OFFLINE) + return 0; + rc = ccw_device_set_online(gdev->cdev[1]); + if (rc) + goto err_out; + rc = ccw_device_set_online(gdev->cdev[0]); + if (rc) + goto err_out; + ctcm_open(priv->channel[CTCM_READ]->netdev); +err_out: + netif_device_attach(priv->channel[CTCM_READ]->netdev); + return rc; +} + +static struct ccw_device_id ctcm_ids[] = { + {CCW_DEVICE(0x3088, 0x08), .driver_info = ctcm_channel_type_parallel}, + {CCW_DEVICE(0x3088, 0x1e), .driver_info = ctcm_channel_type_ficon}, + {CCW_DEVICE(0x3088, 0x1f), .driver_info = ctcm_channel_type_escon}, + {}, +}; +MODULE_DEVICE_TABLE(ccw, ctcm_ids); + +static struct ccw_driver ctcm_ccw_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "ctcm", + }, + .ids = ctcm_ids, + .probe = ccwgroup_probe_ccwdev, + .remove = ccwgroup_remove_ccwdev, + .int_class = IRQIO_CTC, +}; + static struct ccwgroup_driver ctcm_group_driver = { - .owner = THIS_MODULE, - .name = CTC_DRIVER_NAME, - .max_slaves = 2, - .driver_id = 0xC3E3C3D4, /* CTCM */ - .probe = ctcm_probe_device, + .driver = { + .owner = THIS_MODULE, + .name = CTC_DRIVER_NAME, + }, + .setup = ctcm_probe_device, .remove = ctcm_remove_device, .set_online = ctcm_new_device, .set_offline = ctcm_shutdown_device, + .freeze = ctcm_pm_suspend, + .thaw = ctcm_pm_resume, + .restore = ctcm_pm_resume, }; +static ssize_t ctcm_driver_group_store(struct device_driver *ddrv, + const char *buf, size_t count) +{ + int err; + + err = ccwgroup_create_dev(ctcm_root_dev, &ctcm_group_driver, 2, buf); + return err ? err : count; +} +static DRIVER_ATTR(group, 0200, NULL, ctcm_driver_group_store); + +static struct attribute *ctcm_drv_attrs[] = { + &driver_attr_group.attr, + NULL, +}; +static struct attribute_group ctcm_drv_attr_group = { + .attrs = ctcm_drv_attrs, +}; +static const struct attribute_group *ctcm_drv_attr_groups[] = { + &ctcm_drv_attr_group, + NULL, +}; /* * Module related routines @@ -1685,9 +1806,11 @@ static struct ccwgroup_driver ctcm_group_driver = { */ static void __exit ctcm_exit(void) { - unregister_cu3088_discipline(&ctcm_group_driver); + ccwgroup_driver_unregister(&ctcm_group_driver); + ccw_driver_unregister(&ctcm_ccw_driver); + root_device_unregister(ctcm_root_dev); ctcm_unregister_dbf_views(); - ctcm_pr_info("CTCM driver unloaded\n"); + pr_info("CTCM driver unloaded\n"); } /* @@ -1695,7 +1818,7 @@ static void __exit ctcm_exit(void) */ static void print_banner(void) { - printk(KERN_INFO "CTCM driver initialized\n"); + pr_info("CTCM driver initialized\n"); } /** @@ -1711,17 +1834,31 @@ static int __init ctcm_init(void) channels = NULL; ret = ctcm_register_dbf_views(); - if (ret) { - return ret; - } - ret = register_cu3088_discipline(&ctcm_group_driver); - if (ret) { - ctcm_unregister_dbf_views(); - ctcm_pr_crit("ctcm_init failed with register_cu3088_discipline " - "(rc = %d)\n", ret); - return ret; - } + if (ret) + goto out_err; + ctcm_root_dev = root_device_register("ctcm"); + ret = PTR_ERR_OR_ZERO(ctcm_root_dev); + if (ret) + goto register_err; + ret = ccw_driver_register(&ctcm_ccw_driver); + if (ret) + goto ccw_err; + ctcm_group_driver.driver.groups = ctcm_drv_attr_groups; + ret = ccwgroup_driver_register(&ctcm_group_driver); + if (ret) + goto ccwgroup_err; print_banner(); + return 0; + +ccwgroup_err: + ccw_driver_unregister(&ctcm_ccw_driver); +ccw_err: + root_device_unregister(ctcm_root_dev); +register_err: + ctcm_unregister_dbf_views(); +out_err: + pr_err("%s / Initializing the ctcm device driver failed, ret = %d\n", + __func__, ret); return ret; } diff --git a/drivers/s390/net/ctcm_main.h b/drivers/s390/net/ctcm_main.h index 8e10ee86a5e..477c933685f 100644 --- a/drivers/s390/net/ctcm_main.h +++ b/drivers/s390/net/ctcm_main.h @@ -1,6 +1,4 @@ /* - * drivers/s390/net/ctcm_main.h - * * Copyright IBM Corp. 2001, 2007 * Authors: Fritz Elfert (felfert@millenux.com) * Peter Tiedemann (ptiedem@de.ibm.com) @@ -16,7 +14,6 @@ #include <linux/netdevice.h> #include "fsm.h" -#include "cu3088.h" #include "ctcm_dbug.h" #include "ctcm_mpc.h" @@ -41,12 +38,6 @@ #define LOG_FLAG_NOMEM 8 #define ctcm_pr_debug(fmt, arg...) printk(KERN_DEBUG fmt, ##arg) -#define ctcm_pr_info(fmt, arg...) printk(KERN_INFO fmt, ##arg) -#define ctcm_pr_notice(fmt, arg...) printk(KERN_NOTICE fmt, ##arg) -#define ctcm_pr_warn(fmt, arg...) printk(KERN_WARNING fmt, ##arg) -#define ctcm_pr_emerg(fmt, arg...) printk(KERN_EMERG fmt, ##arg) -#define ctcm_pr_err(fmt, arg...) printk(KERN_ERR fmt, ##arg) -#define ctcm_pr_crit(fmt, arg...) printk(KERN_CRIT fmt, ##arg) #define CTCM_PR_DEBUG(fmt, arg...) \ do { \ @@ -72,6 +63,23 @@ ctcmpc_dumpit(buf, len); \ } while (0) +/** + * Enum for classifying detected devices + */ +enum ctcm_channel_types { + /* Device is not a channel */ + ctcm_channel_type_none, + + /* Device is a CTC/A */ + ctcm_channel_type_parallel, + + /* Device is a FICON channel */ + ctcm_channel_type_ficon, + + /* Device is a ESCON channel */ + ctcm_channel_type_escon +}; + /* * CCW commands, used in this driver. */ @@ -101,10 +109,10 @@ #define CTCM_INITIAL_BLOCKLEN 2 -#define READ 0 -#define WRITE 1 +#define CTCM_READ 0 +#define CTCM_WRITE 1 -#define CTCM_ID_SIZE BUS_ID_SIZE+3 +#define CTCM_ID_SIZE 20+3 struct ctcm_profile { unsigned long maxmulti; @@ -127,7 +135,7 @@ struct channel { * Type of this channel. * CTC/A or Escon for valid channels. */ - enum channel_types type; + enum ctcm_channel_types type; /* * Misc. flags. See CHANNEL_FLAGS_... below */ @@ -215,13 +223,7 @@ struct ctcm_priv { int ctcm_open(struct net_device *dev); int ctcm_close(struct net_device *dev); -/* - * prototypes for non-static sysfs functions - */ -int ctcm_add_attributes(struct device *dev); -void ctcm_remove_attributes(struct device *dev); -int ctcm_add_files(struct device *dev); -void ctcm_remove_files(struct device *dev); +extern const struct attribute_group *ctcm_attr_groups[]; /* * Compatibility macros for busy handling diff --git a/drivers/s390/net/ctcm_mpc.c b/drivers/s390/net/ctcm_mpc.c index cbe470493bf..2dbc77b5137 100644 --- a/drivers/s390/net/ctcm_mpc.c +++ b/drivers/s390/net/ctcm_mpc.c @@ -1,6 +1,4 @@ /* - * drivers/s390/net/ctcm_mpc.c - * * Copyright IBM Corp. 2004, 2007 * Authors: Belinda Thompson (belindat@us.ibm.com) * Andy Richter (richtera@us.ibm.com) @@ -19,6 +17,9 @@ #undef DEBUGDATA #undef DEBUGCCW +#define KMSG_COMPONENT "ctcm" +#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt + #include <linux/module.h> #include <linux/init.h> #include <linux/kernel.h> @@ -50,9 +51,8 @@ #include <linux/moduleparam.h> #include <asm/idals.h> -#include "cu3088.h" -#include "ctcm_mpc.h" #include "ctcm_main.h" +#include "ctcm_mpc.h" #include "ctcm_fsms.h" static const struct xid2 init_xid = { @@ -130,7 +130,7 @@ void ctcmpc_dumpit(char *buf, int len) __u32 ct, sw, rm, dup; char *ptr, *rptr; char tbuf[82], tdup[82]; - #if (UTS_MACHINE == s390x) + #ifdef CONFIG_64BIT char addr[22]; #else char addr[12]; @@ -147,8 +147,8 @@ void ctcmpc_dumpit(char *buf, int len) for (ct = 0; ct < len; ct++, ptr++, rptr++) { if (sw == 0) { - #if (UTS_MACHINE == s390x) - sprintf(addr, "%16.16lx", (__u64)rptr); + #ifdef CONFIG_64BIT + sprintf(addr, "%16.16llx", (__u64)rptr); #else sprintf(addr, "%8.8X", (__u32)rptr); #endif @@ -162,8 +162,8 @@ void ctcmpc_dumpit(char *buf, int len) if (sw == 8) strcat(bhex, " "); - #if (UTS_MACHINE == s390x) - sprintf(tbuf, "%2.2lX", (__u64)*ptr); + #if CONFIG_64BIT + sprintf(tbuf, "%2.2llX", (__u64)*ptr); #else sprintf(tbuf, "%2.2X", (__u32)*ptr); #endif @@ -386,11 +386,10 @@ int ctc_mpc_alloc_channel(int port_num, void (*callback)(int, int)) if (grp->allocchan_callback_retries < 4) { if (grp->allochanfunc) grp->allochanfunc(grp->port_num, - grp->group_max_buflen); + grp->group_max_buflen); } else { /* there are problems...bail out */ /* there may be a state mismatch so restart */ - grp->port_persist = 1; fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); grp->allocchan_callback_retries = 0; } @@ -418,8 +417,8 @@ void ctc_mpc_establish_connectivity(int port_num, return; priv = dev->ml_priv; grp = priv->mpcg; - rch = priv->channel[READ]; - wch = priv->channel[WRITE]; + rch = priv->channel[CTCM_READ]; + wch = priv->channel[CTCM_WRITE]; CTCM_DBF_TEXT_(MPC_SETUP, CTC_DBF_INFO, "%s(%s): state=%s", @@ -539,7 +538,7 @@ void ctc_mpc_dealloc_ch(int port_num) CTCM_DBF_TEXT_(MPC_SETUP, CTC_DBF_DEBUG, "%s: %s: refcount = %d\n", - CTCM_FUNTAIL, dev->name, atomic_read(&dev->refcnt)); + CTCM_FUNTAIL, dev->name, netdev_refcnt_read(dev)); fsm_deltimer(&priv->restart_timer); grp->channels_terminating = 0; @@ -577,7 +576,7 @@ void ctc_mpc_flow_control(int port_num, int flowc) "%s: %s: flowc = %d", CTCM_FUNTAIL, dev->name, flowc); - rch = priv->channel[READ]; + rch = priv->channel[CTCM_READ]; mpcg_state = fsm_getstate(grp->fsm); switch (flowc) { @@ -621,7 +620,7 @@ static void mpc_rcvd_sweep_resp(struct mpcg_info *mpcginfo) struct net_device *dev = rch->netdev; struct ctcm_priv *priv = dev->ml_priv; struct mpc_group *grp = priv->mpcg; - struct channel *ch = priv->channel[WRITE]; + struct channel *ch = priv->channel[CTCM_WRITE]; CTCM_PR_DEBUG("%s: ch=0x%p id=%s\n", __func__, ch, ch->id); CTCM_D3_DUMP((char *)mpcginfo->sweep, TH_SWEEP_LENGTH); @@ -652,10 +651,9 @@ static void ctcmpc_send_sweep_resp(struct channel *rch) struct net_device *dev = rch->netdev; struct ctcm_priv *priv = dev->ml_priv; struct mpc_group *grp = priv->mpcg; - int rc = 0; struct th_sweep *header; struct sk_buff *sweep_skb; - struct channel *ch = priv->channel[WRITE]; + struct channel *ch = priv->channel[CTCM_WRITE]; CTCM_PR_DEBUG("%s: ch=0x%p id=%s\n", __func__, rch, rch->id); @@ -664,17 +662,14 @@ static void ctcmpc_send_sweep_resp(struct channel *rch) CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, "%s(%s): sweep_skb allocation ERROR\n", CTCM_FUNTAIL, rch->id); - rc = -ENOMEM; - goto done; + goto done; } - header = (struct th_sweep *) - kmalloc(sizeof(struct th_sweep), gfp_type()); + header = kmalloc(sizeof(struct th_sweep), gfp_type()); if (!header) { dev_kfree_skb_any(sweep_skb); - rc = -ENOMEM; - goto done; + goto done; } header->th.th_seg = 0x00 ; @@ -696,11 +691,9 @@ static void ctcmpc_send_sweep_resp(struct channel *rch) return; done: - if (rc != 0) { - grp->in_sweep = 0; - ctcm_clear_busy_do(dev); - fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); - } + grp->in_sweep = 0; + ctcm_clear_busy_do(dev); + fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); return; } @@ -714,7 +707,7 @@ static void mpc_rcvd_sweep_req(struct mpcg_info *mpcginfo) struct net_device *dev = rch->netdev; struct ctcm_priv *priv = dev->ml_priv; struct mpc_group *grp = priv->mpcg; - struct channel *ch = priv->channel[WRITE]; + struct channel *ch = priv->channel[CTCM_WRITE]; if (do_debug) CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_DEBUG, @@ -723,8 +716,8 @@ static void mpc_rcvd_sweep_req(struct mpcg_info *mpcginfo) if (grp->in_sweep == 0) { grp->in_sweep = 1; ctcm_test_and_set_busy(dev); - grp->sweep_req_pend_num = grp->active_channels[READ]; - grp->sweep_rsp_pend_num = grp->active_channels[READ]; + grp->sweep_req_pend_num = grp->active_channels[CTCM_READ]; + grp->sweep_rsp_pend_num = grp->active_channels[CTCM_READ]; } CTCM_D3_DUMP((char *)mpcginfo->sweep, TH_SWEEP_LENGTH); @@ -908,14 +901,14 @@ void mpc_group_ready(unsigned long adev) fsm_newstate(grp->fsm, MPCG_STATE_READY); /* Put up a read on the channel */ - ch = priv->channel[READ]; + ch = priv->channel[CTCM_READ]; ch->pdu_seq = 0; CTCM_PR_DBGDATA("ctcmpc: %s() ToDCM_pdu_seq= %08x\n" , __func__, ch->pdu_seq); ctcmpc_chx_rxidle(ch->fsm, CTC_EVENT_START, ch); /* Put the write channel in idle state */ - ch = priv->channel[WRITE]; + ch = priv->channel[CTCM_WRITE]; if (ch->collect_len > 0) { spin_lock(&ch->collect_lock); ctcm_purge_skb_queue(&ch->collect_queue); @@ -962,7 +955,8 @@ void mpc_channel_action(struct channel *ch, int direction, int action) "%s: %i / Grp:%s total_channels=%i, active_channels: " "read=%i, write=%i\n", __func__, action, fsm_getstate_str(grp->fsm), grp->num_channel_paths, - grp->active_channels[READ], grp->active_channels[WRITE]); + grp->active_channels[CTCM_READ], + grp->active_channels[CTCM_WRITE]); if ((action == MPC_CHANNEL_ADD) && (ch->in_mpcgroup == 0)) { grp->num_channel_paths++; @@ -996,10 +990,11 @@ void mpc_channel_action(struct channel *ch, int direction, int action) grp->xid_skb->data, grp->xid_skb->len); - ch->xid->xid2_dlc_type = ((CHANNEL_DIRECTION(ch->flags) == READ) + ch->xid->xid2_dlc_type = + ((CHANNEL_DIRECTION(ch->flags) == CTCM_READ) ? XID2_READ_SIDE : XID2_WRITE_SIDE); - if (CHANNEL_DIRECTION(ch->flags) == WRITE) + if (CHANNEL_DIRECTION(ch->flags) == CTCM_WRITE) ch->xid->xid2_buf_len = 0x00; ch->xid_skb->data = ch->xid_skb_data; @@ -1008,8 +1003,8 @@ void mpc_channel_action(struct channel *ch, int direction, int action) fsm_newstate(ch->fsm, CH_XID0_PENDING); - if ((grp->active_channels[READ] > 0) && - (grp->active_channels[WRITE] > 0) && + if ((grp->active_channels[CTCM_READ] > 0) && + (grp->active_channels[CTCM_WRITE] > 0) && (fsm_getstate(grp->fsm) < MPCG_STATE_XID2INITW)) { fsm_newstate(grp->fsm, MPCG_STATE_XID2INITW); CTCM_DBF_TEXT_(MPC_SETUP, CTC_DBF_NOTICE, @@ -1029,10 +1024,10 @@ void mpc_channel_action(struct channel *ch, int direction, int action) if (grp->channels_terminating) goto done; - if (((grp->active_channels[READ] == 0) && - (grp->active_channels[WRITE] > 0)) - || ((grp->active_channels[WRITE] == 0) && - (grp->active_channels[READ] > 0))) + if (((grp->active_channels[CTCM_READ] == 0) && + (grp->active_channels[CTCM_WRITE] > 0)) + || ((grp->active_channels[CTCM_WRITE] == 0) && + (grp->active_channels[CTCM_READ] > 0))) fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); } done: @@ -1040,7 +1035,8 @@ done: "exit %s: %i / Grp:%s total_channels=%i, active_channels: " "read=%i, write=%i\n", __func__, action, fsm_getstate_str(grp->fsm), grp->num_channel_paths, - grp->active_channels[READ], grp->active_channels[WRITE]); + grp->active_channels[CTCM_READ], + grp->active_channels[CTCM_WRITE]); CTCM_PR_DEBUG("exit %s: ch=0x%p id=%s\n", __func__, ch, ch->id); } @@ -1115,7 +1111,6 @@ static void ctcmpc_unpack_skb(struct channel *ch, struct sk_buff *pskb) if (unlikely(fsm_getstate(grp->fsm) != MPCG_STATE_READY)) goto done; - pdu_last_seen = 0; while ((pskb->len > 0) && !pdu_last_seen) { curr_pdu = (struct pdu *)pskb->data; @@ -1193,8 +1188,7 @@ static void ctcmpc_unpack_skb(struct channel *ch, struct sk_buff *pskb) skb_pull(pskb, new_len); /* point to next PDU */ } } else { - mpcginfo = (struct mpcg_info *) - kmalloc(sizeof(struct mpcg_info), gfp_type()); + mpcginfo = kmalloc(sizeof(struct mpcg_info), gfp_type()); if (mpcginfo == NULL) goto done; @@ -1232,8 +1226,9 @@ done: dev_kfree_skb_any(pskb); if (sendrc == NET_RX_DROP) { - printk(KERN_WARNING "%s %s() NETWORK BACKLOG EXCEEDED" - " - PACKET DROPPED\n", dev->name, __func__); + dev_warn(&dev->dev, + "The network backlog for %s is exceeded, " + "package dropped\n", __func__); fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); } @@ -1370,10 +1365,8 @@ static void mpc_action_go_inop(fsm_instance *fi, int event, void *arg) struct net_device *dev = arg; struct ctcm_priv *priv; struct mpc_group *grp; - int rc = 0; - struct channel *wch, *rch; + struct channel *wch; - BUG_ON(dev == NULL); CTCM_PR_DEBUG("Enter %s: %s\n", __func__, dev->name); priv = dev->ml_priv; @@ -1392,12 +1385,10 @@ static void mpc_action_go_inop(fsm_instance *fi, int event, void *arg) CTCM_FUNTAIL, dev->name); if ((grp->saved_state != MPCG_STATE_RESET) || /* dealloc_channel has been called */ - ((grp->saved_state == MPCG_STATE_RESET) && - (grp->port_persist == 0))) + (grp->port_persist == 0)) fsm_deltimer(&priv->restart_timer); - wch = priv->channel[WRITE]; - rch = priv->channel[READ]; + wch = priv->channel[CTCM_WRITE]; switch (grp->saved_state) { case MPCG_STATE_RESET: @@ -1436,7 +1427,7 @@ static void mpc_action_go_inop(fsm_instance *fi, int event, void *arg) if (grp->send_qllc_disc == 1) { grp->send_qllc_disc = 0; - rc = mpc_send_qllc_discontact(dev); + mpc_send_qllc_discontact(dev); } /* DO NOT issue DEV_EVENT_STOP directly out of this code */ @@ -1480,12 +1471,10 @@ static void mpc_action_timeout(fsm_instance *fi, int event, void *arg) struct channel *wch; struct channel *rch; - BUG_ON(dev == NULL); - priv = dev->ml_priv; grp = priv->mpcg; - wch = priv->channel[WRITE]; - rch = priv->channel[READ]; + wch = priv->channel[CTCM_WRITE]; + rch = priv->channel[CTCM_READ]; switch (fsm_getstate(grp->fsm)) { case MPCG_STATE_XID2INITW: @@ -1590,7 +1579,7 @@ static int mpc_validate_xid(struct mpcg_info *mpcginfo) CTCM_D3_DUMP((char *)xid, XID2_LENGTH); /*the received direction should be the opposite of ours */ - if (((CHANNEL_DIRECTION(ch->flags) == READ) ? XID2_WRITE_SIDE : + if (((CHANNEL_DIRECTION(ch->flags) == CTCM_READ) ? XID2_WRITE_SIDE : XID2_READ_SIDE) != xid->xid2_dlc_type) { rc = 2; /* XID REJECTED: r/w channel pairing mismatch */ @@ -1670,10 +1659,11 @@ static int mpc_validate_xid(struct mpcg_info *mpcginfo) CTCM_FUNTAIL, ch->id); } } - done: if (rc) { - ctcm_pr_info("ctcmpc : %s() failed\n", __FUNCTION__); + dev_warn(&dev->dev, + "The XID used in the MPC protocol is not valid, " + "rc = %d\n", rc); priv->xid->xid2_flag2 = 0x40; grp->saved_xid2->xid2_flag2 = 0x40; } @@ -1912,12 +1902,10 @@ static void mpc_action_doxid7(fsm_instance *fsm, int event, void *arg) if (priv) grp = priv->mpcg; - if (grp == NULL) { - fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); + if (grp == NULL) return; - } - for (direction = READ; direction <= WRITE; direction++) { + for (direction = CTCM_READ; direction <= CTCM_WRITE; direction++) { struct channel *ch = priv->channel[direction]; struct xid2 *thisxid = ch->xid; ch->xid_skb->data = ch->xid_skb_data; @@ -2157,14 +2145,15 @@ static int mpc_send_qllc_discontact(struct net_device *dev) return -ENOMEM; } - *((__u32 *)skb_push(skb, 4)) = priv->channel[READ]->pdu_seq; - priv->channel[READ]->pdu_seq++; + *((__u32 *)skb_push(skb, 4)) = + priv->channel[CTCM_READ]->pdu_seq; + priv->channel[CTCM_READ]->pdu_seq++; CTCM_PR_DBGDATA("ctcmpc: %s ToDCM_pdu_seq= %08x\n", - __func__, priv->channel[READ]->pdu_seq); + __func__, priv->channel[CTCM_READ]->pdu_seq); /* receipt of CC03 resets anticipated sequence number on receiving side */ - priv->channel[READ]->pdu_seq = 0x00; + priv->channel[CTCM_READ]->pdu_seq = 0x00; skb_reset_mac_header(skb); skb->dev = dev; skb->protocol = htons(ETH_P_SNAP); diff --git a/drivers/s390/net/ctcm_mpc.h b/drivers/s390/net/ctcm_mpc.h index 5336120cddf..bd1b1cc54ff 100644 --- a/drivers/s390/net/ctcm_mpc.h +++ b/drivers/s390/net/ctcm_mpc.h @@ -1,6 +1,4 @@ /* - * drivers/s390/net/ctcm_mpc.h - * * Copyright IBM Corp. 2007 * Authors: Peter Tiedemann (ptiedem@de.ibm.com) * @@ -12,6 +10,7 @@ #ifndef _CTC_MPC_H_ #define _CTC_MPC_H_ +#include <linux/interrupt.h> #include <linux/skbuff.h> #include "fsm.h" diff --git a/drivers/s390/net/ctcm_sysfs.c b/drivers/s390/net/ctcm_sysfs.c index bb2d13721d3..6bcfbbb20f0 100644 --- a/drivers/s390/net/ctcm_sysfs.c +++ b/drivers/s390/net/ctcm_sysfs.c @@ -1,6 +1,4 @@ /* - * drivers/s390/net/ctcm_sysfs.c - * * Copyright IBM Corp. 2007, 2007 * Authors: Peter Tiedemann (ptiedem@de.ibm.com) * @@ -10,7 +8,12 @@ #undef DEBUGDATA #undef DEBUGCCW +#define KMSG_COMPONENT "ctcm" +#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt + +#include <linux/device.h> #include <linux/sysfs.h> +#include <linux/slab.h> #include "ctcm_main.h" /* @@ -31,16 +34,19 @@ static ssize_t ctcm_buffer_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct net_device *ndev; - int bs1; + unsigned int bs1; struct ctcm_priv *priv = dev_get_drvdata(dev); + int rc; - if (!(priv && priv->channel[READ] && - (ndev = priv->channel[READ]->netdev))) { + ndev = priv->channel[CTCM_READ]->netdev; + if (!(priv && priv->channel[CTCM_READ] && ndev)) { CTCM_DBF_TEXT(SETUP, CTC_DBF_ERROR, "bfnondev"); return -ENODEV; } - sscanf(buf, "%u", &bs1); + rc = sscanf(buf, "%u", &bs1); + if (rc != 1) + goto einval; if (bs1 > CTCM_BUFSIZE_LIMIT) goto einval; if (bs1 < (576 + LL_HEADER_LENGTH + 2)) @@ -51,12 +57,12 @@ static ssize_t ctcm_buffer_write(struct device *dev, (bs1 < (ndev->mtu + LL_HEADER_LENGTH + 2))) goto einval; - priv->channel[READ]->max_bufsize = bs1; - priv->channel[WRITE]->max_bufsize = bs1; + priv->channel[CTCM_READ]->max_bufsize = bs1; + priv->channel[CTCM_WRITE]->max_bufsize = bs1; if (!(ndev->flags & IFF_RUNNING)) ndev->mtu = bs1 - LL_HEADER_LENGTH - 2; - priv->channel[READ]->flags |= CHANNEL_FLAGS_BUFSIZE_CHANGED; - priv->channel[WRITE]->flags |= CHANNEL_FLAGS_BUFSIZE_CHANGED; + priv->channel[CTCM_READ]->flags |= CHANNEL_FLAGS_BUFSIZE_CHANGED; + priv->channel[CTCM_WRITE]->flags |= CHANNEL_FLAGS_BUFSIZE_CHANGED; CTCM_DBF_DEV(SETUP, ndev, buf); return count; @@ -81,9 +87,9 @@ static void ctcm_print_statistics(struct ctcm_priv *priv) p += sprintf(p, " Device FSM state: %s\n", fsm_getstate_str(priv->fsm)); p += sprintf(p, " RX channel FSM state: %s\n", - fsm_getstate_str(priv->channel[READ]->fsm)); + fsm_getstate_str(priv->channel[CTCM_READ]->fsm)); p += sprintf(p, " TX channel FSM state: %s\n", - fsm_getstate_str(priv->channel[WRITE]->fsm)); + fsm_getstate_str(priv->channel[CTCM_WRITE]->fsm)); p += sprintf(p, " Max. TX buffer used: %ld\n", priv->channel[WRITE]->prof.maxmulti); p += sprintf(p, " Max. chained SKBs: %ld\n", @@ -98,16 +104,18 @@ static void ctcm_print_statistics(struct ctcm_priv *priv) priv->channel[WRITE]->prof.tx_time); printk(KERN_INFO "Statistics for %s:\n%s", - priv->channel[WRITE]->netdev->name, sbuf); + priv->channel[CTCM_WRITE]->netdev->name, sbuf); kfree(sbuf); return; } static ssize_t stats_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, char *buf) { + struct ccwgroup_device *gdev = to_ccwgroupdev(dev); struct ctcm_priv *priv = dev_get_drvdata(dev); - if (!priv) + + if (!priv || gdev->state != CCWGROUP_ONLINE) return -ENODEV; ctcm_print_statistics(priv); return sprintf(buf, "0\n"); @@ -121,7 +129,7 @@ static ssize_t stats_write(struct device *dev, struct device_attribute *attr, return -ENODEV; /* Reset statistics */ memset(&priv->channel[WRITE]->prof, 0, - sizeof(priv->channel[WRITE]->prof)); + sizeof(priv->channel[CTCM_WRITE]->prof)); return count; } @@ -138,13 +146,14 @@ static ssize_t ctcm_proto_show(struct device *dev, static ssize_t ctcm_proto_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - int value; + int value, rc; struct ctcm_priv *priv = dev_get_drvdata(dev); if (!priv) return -ENODEV; - sscanf(buf, "%u", &value); - if (!((value == CTCM_PROTO_S390) || + rc = sscanf(buf, "%d", &value); + if ((rc != 1) || + !((value == CTCM_PROTO_S390) || (value == CTCM_PROTO_LINUX) || (value == CTCM_PROTO_MPC) || (value == CTCM_PROTO_OS390))) @@ -155,6 +164,15 @@ static ssize_t ctcm_proto_store(struct device *dev, return count; } +static const char *ctcm_type[] = { + "not a channel", + "CTC/A", + "FICON channel", + "ESCON channel", + "unknown channel type", + "unsupported channel type", +}; + static ssize_t ctcm_type_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -165,7 +183,7 @@ static ssize_t ctcm_type_show(struct device *dev, return -ENODEV; return sprintf(buf, "%s\n", - cu3088_type[cgdev->cdev[0]->id.driver_info]); + ctcm_type[cgdev->cdev[0]->id.driver_info]); } static DEVICE_ATTR(buffer, 0644, ctcm_buffer_show, ctcm_buffer_write); @@ -177,34 +195,14 @@ static struct attribute *ctcm_attr[] = { &dev_attr_protocol.attr, &dev_attr_type.attr, &dev_attr_buffer.attr, + &dev_attr_stats.attr, NULL, }; static struct attribute_group ctcm_attr_group = { .attrs = ctcm_attr, }; - -int ctcm_add_attributes(struct device *dev) -{ - int rc; - - rc = device_create_file(dev, &dev_attr_stats); - - return rc; -} - -void ctcm_remove_attributes(struct device *dev) -{ - device_remove_file(dev, &dev_attr_stats); -} - -int ctcm_add_files(struct device *dev) -{ - return sysfs_create_group(&dev->kobj, &ctcm_attr_group); -} - -void ctcm_remove_files(struct device *dev) -{ - sysfs_remove_group(&dev->kobj, &ctcm_attr_group); -} - +const struct attribute_group *ctcm_attr_groups[] = { + &ctcm_attr_group, + NULL, +}; diff --git a/drivers/s390/net/cu3088.c b/drivers/s390/net/cu3088.c deleted file mode 100644 index f4a32375c03..00000000000 --- a/drivers/s390/net/cu3088.c +++ /dev/null @@ -1,149 +0,0 @@ -/* - * CTC / LCS ccw_device driver - * - * Copyright (C) 2002 IBM Deutschland Entwicklung GmbH, IBM Corporation - * Author(s): Arnd Bergmann <arndb@de.ibm.com> - * Cornelia Huck <cornelia.huck@de.ibm.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/err.h> - -#include <asm/s390_rdev.h> -#include <asm/ccwdev.h> -#include <asm/ccwgroup.h> - -#include "cu3088.h" - -const char *cu3088_type[] = { - "not a channel", - "CTC/A", - "ESCON channel", - "FICON channel", - "OSA LCS card", - "CLAW channel device", - "unknown channel type", - "unsupported channel type", -}; - -/* static definitions */ - -static struct ccw_device_id cu3088_ids[] = { - { CCW_DEVICE(0x3088, 0x08), .driver_info = channel_type_parallel }, - { CCW_DEVICE(0x3088, 0x1f), .driver_info = channel_type_escon }, - { CCW_DEVICE(0x3088, 0x1e), .driver_info = channel_type_ficon }, - { CCW_DEVICE(0x3088, 0x60), .driver_info = channel_type_osa2 }, - { CCW_DEVICE(0x3088, 0x61), .driver_info = channel_type_claw }, - { /* end of list */ } -}; - -static struct ccw_driver cu3088_driver; - -static struct device *cu3088_root_dev; - -static ssize_t -group_write(struct device_driver *drv, const char *buf, size_t count) -{ - int ret; - struct ccwgroup_driver *cdrv; - - cdrv = to_ccwgroupdrv(drv); - if (!cdrv) - return -EINVAL; - ret = ccwgroup_create_from_string(cu3088_root_dev, cdrv->driver_id, - &cu3088_driver, 2, buf); - - return (ret == 0) ? count : ret; -} - -static DRIVER_ATTR(group, 0200, NULL, group_write); - -/* Register-unregister for ctc&lcs */ -int -register_cu3088_discipline(struct ccwgroup_driver *dcp) -{ - int rc; - - if (!dcp) - return -EINVAL; - - /* Register discipline.*/ - rc = ccwgroup_driver_register(dcp); - if (rc) - return rc; - - rc = driver_create_file(&dcp->driver, &driver_attr_group); - if (rc) - ccwgroup_driver_unregister(dcp); - - return rc; - -} - -void -unregister_cu3088_discipline(struct ccwgroup_driver *dcp) -{ - if (!dcp) - return; - - driver_remove_file(&dcp->driver, &driver_attr_group); - ccwgroup_driver_unregister(dcp); -} - -static struct ccw_driver cu3088_driver = { - .owner = THIS_MODULE, - .ids = cu3088_ids, - .name = "cu3088", - .probe = ccwgroup_probe_ccwdev, - .remove = ccwgroup_remove_ccwdev, -}; - -/* module setup */ -static int __init -cu3088_init (void) -{ - int rc; - - cu3088_root_dev = s390_root_dev_register("cu3088"); - if (IS_ERR(cu3088_root_dev)) - return PTR_ERR(cu3088_root_dev); - rc = ccw_driver_register(&cu3088_driver); - if (rc) - s390_root_dev_unregister(cu3088_root_dev); - - return rc; -} - -static void __exit -cu3088_exit (void) -{ - ccw_driver_unregister(&cu3088_driver); - s390_root_dev_unregister(cu3088_root_dev); -} - -MODULE_DEVICE_TABLE(ccw,cu3088_ids); -MODULE_AUTHOR("Arnd Bergmann <arndb@de.ibm.com>"); -MODULE_LICENSE("GPL"); - -module_init(cu3088_init); -module_exit(cu3088_exit); - -EXPORT_SYMBOL_GPL(cu3088_type); -EXPORT_SYMBOL_GPL(register_cu3088_discipline); -EXPORT_SYMBOL_GPL(unregister_cu3088_discipline); diff --git a/drivers/s390/net/cu3088.h b/drivers/s390/net/cu3088.h deleted file mode 100644 index d8558a7105a..00000000000 --- a/drivers/s390/net/cu3088.h +++ /dev/null @@ -1,41 +0,0 @@ -#ifndef _CU3088_H -#define _CU3088_H - -/** - * Enum for classifying detected devices. - */ -enum channel_types { - /* Device is not a channel */ - channel_type_none, - - /* Device is a CTC/A */ - channel_type_parallel, - - /* Device is a ESCON channel */ - channel_type_escon, - - /* Device is a FICON channel */ - channel_type_ficon, - - /* Device is a OSA2 card */ - channel_type_osa2, - - /* Device is a CLAW channel device */ - channel_type_claw, - - /* Device is a channel, but we don't know - * anything about it */ - channel_type_unknown, - - /* Device is an unsupported model */ - channel_type_unsupported, - - /* number of type entries */ - num_channel_types -}; - -extern const char *cu3088_type[num_channel_types]; -extern int register_cu3088_discipline(struct ccwgroup_driver *); -extern void unregister_cu3088_discipline(struct ccwgroup_driver *); - -#endif diff --git a/drivers/s390/net/fsm.c b/drivers/s390/net/fsm.c index 2c1db8036b7..e5dea67f902 100644 --- a/drivers/s390/net/fsm.c +++ b/drivers/s390/net/fsm.c @@ -5,6 +5,7 @@ #include "fsm.h" #include <linux/module.h> +#include <linux/slab.h> #include <linux/timer.h> MODULE_AUTHOR("(C) 2000 IBM Corp. by Fritz Elfert (felfert@millenux.com)"); @@ -27,6 +28,7 @@ init_fsm(char *name, const char **state_names, const char **event_names, int nr_ return NULL; } strlcpy(this->name, name, sizeof(this->name)); + init_waitqueue_head(&this->wait_q); f = kzalloc(sizeof(fsm), order); if (f == NULL) { diff --git a/drivers/s390/net/fsm.h b/drivers/s390/net/fsm.h index af679c10f1b..a4510cf5903 100644 --- a/drivers/s390/net/fsm.h +++ b/drivers/s390/net/fsm.h @@ -8,7 +8,7 @@ #include <linux/slab.h> #include <linux/sched.h> #include <linux/string.h> -#include <asm/atomic.h> +#include <linux/atomic.h> /** * Define this to get debugging messages. @@ -66,6 +66,7 @@ typedef struct fsm_instance_t { char name[16]; void *userdata; int userint; + wait_queue_head_t wait_q; #if FSM_DEBUG_HISTORY int history_index; int history_size; @@ -197,6 +198,7 @@ fsm_newstate(fsm_instance *fi, int newstate) printk(KERN_DEBUG "fsm(%s): New state %s\n", fi->name, fi->f->state_names[newstate]); #endif + wake_up(&fi->wait_q); } /** diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c index 9bcfa04d863..0a7d87c372b 100644 --- a/drivers/s390/net/lcs.c +++ b/drivers/s390/net/lcs.c @@ -1,15 +1,12 @@ /* - * linux/drivers/s390/net/lcs.c - * * Linux for S/390 Lan Channel Station Network Driver * - * Copyright (C) 1999-2001 IBM Deutschland Entwicklung GmbH, - * IBM Corporation - * Author(s): Original Code written by - * DJ Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com) - * Rewritten by - * Frank Pavlic (fpavlic@de.ibm.com) and - * Martin Schwidefsky <schwidefsky@de.ibm.com> + * Copyright IBM Corp. 1999, 2009 + * Author(s): Original Code written by + * DJ Barrow <djbarrow@de.ibm.com,barrow_dj@yahoo.com> + * Rewritten by + * Frank Pavlic <fpavlic@de.ibm.com> and + * Martin Schwidefsky <schwidefsky@de.ibm.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -26,16 +23,20 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +#define KMSG_COMPONENT "lcs" +#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt + #include <linux/module.h> #include <linux/if.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> -#include <linux/trdevice.h> #include <linux/fddidevice.h> #include <linux/inetdevice.h> #include <linux/in.h> #include <linux/igmp.h> #include <linux/delay.h> +#include <linux/kthread.h> +#include <linux/slab.h> #include <net/arp.h> #include <net/ip.h> @@ -46,22 +47,22 @@ #include <asm/ccwgroup.h> #include "lcs.h" -#include "cu3088.h" -#if !defined(CONFIG_NET_ETHERNET) && \ - !defined(CONFIG_TR) && !defined(CONFIG_FDDI) +#if !defined(CONFIG_ETHERNET) && !defined(CONFIG_FDDI) #error Cannot compile lcs.c without some net devices switched on. #endif -#define PRINTK_HEADER " lcs: " - /** * initialization string for output */ static char version[] __initdata = "LCS driver"; -static char debug_buffer[255]; + +/** + * the root device for lcs group devices + */ +static struct device *lcs_root_dev; /** * Some prototypes. @@ -69,12 +70,15 @@ static char debug_buffer[255]; static void lcs_tasklet(unsigned long); static void lcs_start_kernel_thread(struct work_struct *); static void lcs_get_frames_cb(struct lcs_channel *, struct lcs_buffer *); +#ifdef CONFIG_IP_MULTICAST static int lcs_send_delipm(struct lcs_card *, struct lcs_ipm_list *); +#endif /* CONFIG_IP_MULTICAST */ static int lcs_recovery(void *ptr); /** * Debug Facility Stuff */ +static char debug_buffer[255]; static debug_info_t *lcs_dbf_setup; static debug_info_t *lcs_dbf_trace; @@ -96,7 +100,7 @@ lcs_register_debug_facility(void) lcs_dbf_setup = debug_register("lcs_setup", 2, 1, 8); lcs_dbf_trace = debug_register("lcs_trace", 4, 1, 8); if (lcs_dbf_setup == NULL || lcs_dbf_trace == NULL) { - PRINT_ERR("Not enough memory for debug facility.\n"); + pr_err("Not enough memory for debug facility.\n"); lcs_unregister_debug_facility(); return -ENOMEM; } @@ -278,7 +282,7 @@ lcs_setup_write_ccws(struct lcs_card *card) LCS_DBF_TEXT(3, setup, "iwritccw"); /* Setup write ccws. */ - memset(card->write.ccws, 0, sizeof(struct ccw1) * LCS_NUM_BUFFS + 1); + memset(card->write.ccws, 0, sizeof(struct ccw1) * (LCS_NUM_BUFFS + 1)); for (cnt = 0; cnt < LCS_NUM_BUFFS; cnt++) { card->write.ccws[cnt].cmd_code = LCS_CCW_WRITE; card->write.ccws[cnt].count = 0; @@ -492,7 +496,7 @@ lcs_start_channel(struct lcs_channel *channel) unsigned long flags; int rc; - LCS_DBF_TEXT_(4,trace,"ssch%s", channel->ccwdev->dev.bus_id); + LCS_DBF_TEXT_(4, trace,"ssch%s", dev_name(&channel->ccwdev->dev)); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); rc = ccw_device_start(channel->ccwdev, channel->ccws + channel->io_idx, 0, 0, @@ -501,8 +505,11 @@ lcs_start_channel(struct lcs_channel *channel) channel->state = LCS_CH_STATE_RUNNING; spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); if (rc) { - LCS_DBF_TEXT_(4,trace,"essh%s", channel->ccwdev->dev.bus_id); - PRINT_ERR("Error in starting channel, rc=%d!\n", rc); + LCS_DBF_TEXT_(4,trace,"essh%s", + dev_name(&channel->ccwdev->dev)); + dev_err(&channel->ccwdev->dev, + "Starting an LCS device resulted in an error," + " rc=%d!\n", rc); } return rc; } @@ -514,12 +521,13 @@ lcs_clear_channel(struct lcs_channel *channel) int rc; LCS_DBF_TEXT(4,trace,"clearch"); - LCS_DBF_TEXT_(4,trace,"%s", channel->ccwdev->dev.bus_id); + LCS_DBF_TEXT_(4, trace, "%s", dev_name(&channel->ccwdev->dev)); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); rc = ccw_device_clear(channel->ccwdev, (addr_t) channel); spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); if (rc) { - LCS_DBF_TEXT_(4,trace,"ecsc%s", channel->ccwdev->dev.bus_id); + LCS_DBF_TEXT_(4, trace, "ecsc%s", + dev_name(&channel->ccwdev->dev)); return rc; } wait_event(channel->wait_q, (channel->state == LCS_CH_STATE_CLEARED)); @@ -540,13 +548,14 @@ lcs_stop_channel(struct lcs_channel *channel) if (channel->state == LCS_CH_STATE_STOPPED) return 0; LCS_DBF_TEXT(4,trace,"haltsch"); - LCS_DBF_TEXT_(4,trace,"%s", channel->ccwdev->dev.bus_id); + LCS_DBF_TEXT_(4, trace, "%s", dev_name(&channel->ccwdev->dev)); channel->state = LCS_CH_STATE_INIT; spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); rc = ccw_device_halt(channel->ccwdev, (addr_t) channel); spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); if (rc) { - LCS_DBF_TEXT_(4,trace,"ehsc%s", channel->ccwdev->dev.bus_id); + LCS_DBF_TEXT_(4, trace, "ehsc%s", + dev_name(&channel->ccwdev->dev)); return rc; } /* Asynchronous halt initialted. Wait for its completion. */ @@ -632,11 +641,14 @@ __lcs_resume_channel(struct lcs_channel *channel) return 0; if (channel->ccws[channel->io_idx].flags & CCW_FLAG_SUSPEND) return 0; - LCS_DBF_TEXT_(5, trace, "rsch%s", channel->ccwdev->dev.bus_id); + LCS_DBF_TEXT_(5, trace, "rsch%s", dev_name(&channel->ccwdev->dev)); rc = ccw_device_resume(channel->ccwdev); if (rc) { - LCS_DBF_TEXT_(4, trace, "ersc%s", channel->ccwdev->dev.bus_id); - PRINT_ERR("Error in lcs_resume_channel: rc=%d\n",rc); + LCS_DBF_TEXT_(4, trace, "ersc%s", + dev_name(&channel->ccwdev->dev)); + dev_err(&channel->ccwdev->dev, + "Sending data from the LCS device to the LAN failed" + " with rc=%d\n",rc); } else channel->state = LCS_CH_STATE_RUNNING; return rc; @@ -826,7 +838,7 @@ lcs_notify_lancmd_waiters(struct lcs_card *card, struct lcs_cmd *cmd) } /** - * Emit buffer of a lan comand. + * Emit buffer of a lan command. */ static void lcs_lancmd_timeout(unsigned long data) @@ -880,13 +892,14 @@ lcs_send_lancmd(struct lcs_card *card, struct lcs_buffer *buffer, rc = lcs_ready_buffer(&card->write, buffer); if (rc) return rc; - init_timer(&timer); + init_timer_on_stack(&timer); timer.function = lcs_lancmd_timeout; timer.data = (unsigned long) reply; timer.expires = jiffies + HZ*card->lancmd_timeout; add_timer(&timer); wait_event(reply->wait_q, reply->received); del_timer_sync(&timer); + destroy_timer_on_stack(&timer); LCS_DBF_TEXT_(4, trace, "rc:%d",reply->rc); rc = reply->rc; lcs_put_reply(reply); @@ -1082,7 +1095,7 @@ lcs_check_multicast_support(struct lcs_card *card) cmd->cmd.lcs_qipassist.num_ip_pairs = 1; rc = lcs_send_lancmd(card, buffer, __lcs_check_multicast_cb); if (rc != 0) { - PRINT_ERR("Query IPAssist failed. Assuming unsupported!\n"); + pr_err("Query IPAssist failed. Assuming unsupported!\n"); return -EOPNOTSUPP; } if (card->ip_assists_supported & LCS_IPASS_MULTICAST_SUPPORT) @@ -1108,15 +1121,15 @@ list_modified: list_for_each_entry_safe(ipm, tmp, &card->ipm_list, list){ switch (ipm->ipm_state) { case LCS_IPM_STATE_SET_REQUIRED: - /* del from ipm_list so noone else can tamper with + /* del from ipm_list so no one else can tamper with * this entry */ list_del_init(&ipm->list); spin_unlock_irqrestore(&card->ipm_lock, flags); rc = lcs_send_setipm(card, ipm); spin_lock_irqsave(&card->ipm_lock, flags); if (rc) { - PRINT_INFO("Adding multicast address failed. " - "Table possibly full!\n"); + pr_info("Adding multicast address failed." + " Table possibly full!\n"); /* store ipm in failed list -> will be added * to ipm_list again, so a retry will be done * during the next call of this function */ @@ -1152,10 +1165,7 @@ static void lcs_get_mac_for_ipm(__be32 ipm, char *mac, struct net_device *dev) { LCS_DBF_TEXT(4,trace, "getmac"); - if (dev->type == ARPHRD_IEEE802_TR) - ip_tr_mc_map(ipm, mac); - else - ip_eth_mc_map(ipm, mac); + ip_eth_mc_map(ipm, mac); } /** @@ -1174,7 +1184,8 @@ lcs_remove_mc_addresses(struct lcs_card *card, struct in_device *in4_dev) spin_lock_irqsave(&card->ipm_lock, flags); list_for_each(l, &card->ipm_list) { ipm = list_entry(l, struct lcs_ipm_list, list); - for (im4 = in4_dev->mc_list; im4 != NULL; im4 = im4->next) { + for (im4 = rcu_dereference(in4_dev->mc_list); + im4 != NULL; im4 = rcu_dereference(im4->next_rcu)) { lcs_get_mac_for_ipm(im4->multiaddr, buf, card->dev); if ( (ipm->ipm.ip_addr == im4->multiaddr) && (memcmp(buf, &ipm->ipm.mac_addr, @@ -1219,16 +1230,16 @@ lcs_set_mc_addresses(struct lcs_card *card, struct in_device *in4_dev) unsigned long flags; LCS_DBF_TEXT(4, trace, "setmclst"); - for (im4 = in4_dev->mc_list; im4; im4 = im4->next) { + for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL; + im4 = rcu_dereference(im4->next_rcu)) { lcs_get_mac_for_ipm(im4->multiaddr, buf, card->dev); ipm = lcs_check_addr_entry(card, im4, buf); if (ipm != NULL) continue; /* Address already in list. */ - ipm = (struct lcs_ipm_list *) - kzalloc(sizeof(struct lcs_ipm_list), GFP_ATOMIC); + ipm = kzalloc(sizeof(struct lcs_ipm_list), GFP_ATOMIC); if (ipm == NULL) { - PRINT_INFO("Not enough memory to add " - "new multicast entry!\n"); + pr_info("Not enough memory to add" + " new multicast entry!\n"); break; } memcpy(&ipm->ipm.mac_addr, buf, LCS_MAC_LENGTH); @@ -1248,7 +1259,6 @@ lcs_register_mc_addresses(void *data) struct in_device *in4_dev; card = (struct lcs_card *) data; - daemonize("regipm"); if (!lcs_do_run_thread(card, LCS_SET_MC_THREAD)) return 0; @@ -1257,10 +1267,10 @@ lcs_register_mc_addresses(void *data) in4_dev = in_dev_get(card->dev); if (in4_dev == NULL) goto out; - read_lock(&in4_dev->mc_list_lock); + rcu_read_lock(); lcs_remove_mc_addresses(card,in4_dev); lcs_set_mc_addresses(card, in4_dev); - read_unlock(&in4_dev->mc_list_lock); + rcu_read_unlock(); in_dev_put(in4_dev); netif_carrier_off(card->dev); @@ -1276,6 +1286,8 @@ out: lcs_clear_thread_running_bit(card, LCS_SET_MC_THREAD); return 0; } +#endif /* CONFIG_IP_MULTICAST */ + /** * function called by net device to * handle multicast address relevant things @@ -1283,16 +1295,16 @@ out: static void lcs_set_multicast_list(struct net_device *dev) { +#ifdef CONFIG_IP_MULTICAST struct lcs_card *card; LCS_DBF_TEXT(4, trace, "setmulti"); - card = (struct lcs_card *) dev->priv; + card = (struct lcs_card *) dev->ml_priv; if (!lcs_set_thread_start_bit(card, LCS_SET_MC_THREAD)) schedule_work(&card->kernel_thread_starter); -} - #endif /* CONFIG_IP_MULTICAST */ +} static long lcs_check_irb_error(struct ccw_device *cdev, struct irb *irb) @@ -1302,18 +1314,21 @@ lcs_check_irb_error(struct ccw_device *cdev, struct irb *irb) switch (PTR_ERR(irb)) { case -EIO: - PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id); + dev_warn(&cdev->dev, + "An I/O-error occurred on the LCS device\n"); LCS_DBF_TEXT(2, trace, "ckirberr"); LCS_DBF_TEXT_(2, trace, " rc%d", -EIO); break; case -ETIMEDOUT: - PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id); + dev_warn(&cdev->dev, + "A command timed out on the LCS device\n"); LCS_DBF_TEXT(2, trace, "ckirberr"); LCS_DBF_TEXT_(2, trace, " rc%d", -ETIMEDOUT); break; default: - PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb), - cdev->dev.bus_id); + dev_warn(&cdev->dev, + "An error occurred on the LCS device, rc=%ld\n", + PTR_ERR(irb)); LCS_DBF_TEXT(2, trace, "ckirberr"); LCS_DBF_TEXT(2, trace, " rc???"); } @@ -1390,7 +1405,7 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) cstat = irb->scsw.cmd.cstat; dstat = irb->scsw.cmd.dstat; - LCS_DBF_TEXT_(5, trace, "Rint%s",cdev->dev.bus_id); + LCS_DBF_TEXT_(5, trace, "Rint%s", dev_name(&cdev->dev)); LCS_DBF_TEXT_(5, trace, "%4x%4x", irb->scsw.cmd.cstat, irb->scsw.cmd.dstat); LCS_DBF_TEXT_(5, trace, "%4x%4x", irb->scsw.cmd.fctl, @@ -1399,8 +1414,10 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) /* Check for channel and device errors presented */ rc = lcs_get_problem(cdev, irb); if (rc || (dstat & DEV_STAT_UNIT_EXCEP)) { - PRINT_WARN("check on device %s, dstat=0x%X, cstat=0x%X \n", - cdev->dev.bus_id, dstat, cstat); + dev_warn(&cdev->dev, + "The LCS device stopped because of an error," + " dstat=0x%X, cstat=0x%X \n", + dstat, cstat); if (rc) { channel->state = LCS_CH_STATE_ERROR; } @@ -1460,10 +1477,9 @@ lcs_tasklet(unsigned long data) struct lcs_channel *channel; struct lcs_buffer *iob; int buf_idx; - int rc; channel = (struct lcs_channel *) data; - LCS_DBF_TEXT_(5, trace, "tlet%s",channel->ccwdev->dev.bus_id); + LCS_DBF_TEXT_(5, trace, "tlet%s", dev_name(&channel->ccwdev->dev)); /* Check for processed buffers. */ iob = channel->iob; @@ -1477,14 +1493,11 @@ lcs_tasklet(unsigned long data) channel->buf_idx = buf_idx; if (channel->state == LCS_CH_STATE_STOPPED) - // FIXME: what if rc != 0 ?? - rc = lcs_start_channel(channel); + lcs_start_channel(channel); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); if (channel->state == LCS_CH_STATE_SUSPENDED && - channel->iob[channel->io_idx].state == LCS_BUF_STATE_READY) { - // FIXME: what if rc != 0 ?? - rc = __lcs_resume_channel(channel); - } + channel->iob[channel->io_idx].state == LCS_BUF_STATE_READY) + __lcs_resume_channel(channel); spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); /* Something happened on the channel. Wake up waiters. */ @@ -1538,24 +1551,24 @@ __lcs_start_xmit(struct lcs_card *card, struct sk_buff *skb, struct net_device *dev) { struct lcs_header *header; - int rc = 0; + int rc = NETDEV_TX_OK; LCS_DBF_TEXT(5, trace, "hardxmit"); if (skb == NULL) { card->stats.tx_dropped++; card->stats.tx_errors++; - return -EIO; + return NETDEV_TX_OK; } if (card->state != DEV_STATE_UP) { dev_kfree_skb(skb); card->stats.tx_dropped++; card->stats.tx_errors++; card->stats.tx_carrier_errors++; - return 0; + return NETDEV_TX_OK; } if (skb->protocol == htons(ETH_P_IPV6)) { dev_kfree_skb(skb); - return 0; + return NETDEV_TX_OK; } netif_stop_queue(card->dev); spin_lock(&card->lock); @@ -1569,7 +1582,7 @@ __lcs_start_xmit(struct lcs_card *card, struct sk_buff *skb, card->tx_buffer = lcs_get_buffer(&card->write); if (card->tx_buffer == NULL) { card->stats.tx_dropped++; - rc = -EBUSY; + rc = NETDEV_TX_BUSY; goto out; } card->tx_buffer->callback = lcs_txbuffer_cb; @@ -1603,7 +1616,7 @@ lcs_start_xmit(struct sk_buff *skb, struct net_device *dev) int rc; LCS_DBF_TEXT(5, trace, "pktxmit"); - card = (struct lcs_card *) dev->priv; + card = (struct lcs_card *) dev->ml_priv; rc = __lcs_start_xmit(card, skb, dev); return rc; } @@ -1617,19 +1630,13 @@ lcs_startlan_auto(struct lcs_card *card) int rc; LCS_DBF_TEXT(2, trace, "strtauto"); -#ifdef CONFIG_NET_ETHERNET +#ifdef CONFIG_ETHERNET card->lan_type = LCS_FRAME_TYPE_ENET; rc = lcs_send_startlan(card, LCS_INITIATOR_TCPIP); if (rc == 0) return 0; #endif -#ifdef CONFIG_TR - card->lan_type = LCS_FRAME_TYPE_TR; - rc = lcs_send_startlan(card, LCS_INITIATOR_TCPIP); - if (rc == 0) - return 0; -#endif #ifdef CONFIG_FDDI card->lan_type = LCS_FRAME_TYPE_FDDI; rc = lcs_send_startlan(card, LCS_INITIATOR_TCPIP); @@ -1735,11 +1742,10 @@ lcs_start_kernel_thread(struct work_struct *work) struct lcs_card *card = container_of(work, struct lcs_card, kernel_thread_starter); LCS_DBF_TEXT(5, trace, "krnthrd"); if (lcs_do_start_thread(card, LCS_RECOVERY_THREAD)) - kernel_thread(lcs_recovery, (void *) card, SIGCHLD); + kthread_run(lcs_recovery, card, "lcs_recover"); #ifdef CONFIG_IP_MULTICAST if (lcs_do_start_thread(card, LCS_SET_MC_THREAD)) - kernel_thread(lcs_register_mc_addresses, - (void *) card, SIGCHLD); + kthread_run(lcs_register_mc_addresses, card, "regipm"); #endif } @@ -1757,8 +1763,8 @@ lcs_get_control(struct lcs_card *card, struct lcs_cmd *cmd) lcs_schedule_recovery(card); break; case LCS_CMD_STOPLAN: - PRINT_WARN("Stoplan for %s initiated by LGW.\n", - card->dev->name); + pr_warning("Stoplan for %s initiated by LGW.\n", + card->dev->name); if (card->dev) netif_carrier_off(card->dev); break; @@ -1786,7 +1792,8 @@ lcs_get_skb(struct lcs_card *card, char *skb_data, unsigned int skb_len) skb = dev_alloc_skb(skb_len); if (skb == NULL) { - PRINT_ERR("LCS: alloc_skb failed for device=%s\n", + dev_err(&card->dev->dev, + " Allocating a socket buffer to interface %s failed\n", card->dev->name); card->stats.rx_dropped++; return; @@ -1859,7 +1866,7 @@ lcs_getstats(struct net_device *dev) struct lcs_card *card; LCS_DBF_TEXT(4, trace, "netstats"); - card = (struct lcs_card *) dev->priv; + card = (struct lcs_card *) dev->ml_priv; return &card->stats; } @@ -1874,7 +1881,7 @@ lcs_stop_device(struct net_device *dev) int rc; LCS_DBF_TEXT(2, trace, "stopdev"); - card = (struct lcs_card *) dev->priv; + card = (struct lcs_card *) dev->ml_priv; netif_carrier_off(dev); netif_tx_disable(dev); dev->flags &= ~IFF_UP; @@ -1882,7 +1889,8 @@ lcs_stop_device(struct net_device *dev) (card->write.state != LCS_CH_STATE_RUNNING)); rc = lcs_stopcard(card); if (rc) - PRINT_ERR("Try it again!\n "); + dev_err(&card->dev->dev, + " Shutting down the LCS device failed\n "); return rc; } @@ -1897,11 +1905,11 @@ lcs_open_device(struct net_device *dev) int rc; LCS_DBF_TEXT(2, trace, "opendev"); - card = (struct lcs_card *) dev->priv; + card = (struct lcs_card *) dev->ml_priv; /* initialize statistics */ rc = lcs_detect(card); if (rc) { - PRINT_ERR("LCS:Error in opening device!\n"); + pr_err("Error in opening device!\n"); } else { dev->flags |= IFF_UP; @@ -1920,7 +1928,7 @@ lcs_portno_show (struct device *dev, struct device_attribute *attr, char *buf) { struct lcs_card *card; - card = (struct lcs_card *)dev->driver_data; + card = dev_get_drvdata(dev); if (!card) return 0; @@ -1935,14 +1943,16 @@ static ssize_t lcs_portno_store (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct lcs_card *card; - int value; + int value, rc; - card = (struct lcs_card *)dev->driver_data; + card = dev_get_drvdata(dev); if (!card) return 0; - sscanf(buf, "%u", &value); + rc = sscanf(buf, "%d", &value); + if (rc != 1) + return -EINVAL; /* TODO: sanity checks */ card->portno = value; @@ -1952,6 +1962,15 @@ lcs_portno_store (struct device *dev, struct device_attribute *attr, const char static DEVICE_ATTR(portno, 0644, lcs_portno_show, lcs_portno_store); +static const char *lcs_type[] = { + "not a channel", + "2216 parallel", + "2216 channel", + "OSA LCS card", + "unknown channel type", + "unsupported channel type", +}; + static ssize_t lcs_type_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -1961,7 +1980,7 @@ lcs_type_show(struct device *dev, struct device_attribute *attr, char *buf) if (!cgdev) return -ENODEV; - return sprintf(buf, "%s\n", cu3088_type[cgdev->cdev[0]->id.driver_info]); + return sprintf(buf, "%s\n", lcs_type[cgdev->cdev[0]->id.driver_info]); } static DEVICE_ATTR(type, 0444, lcs_type_show, NULL); @@ -1971,7 +1990,7 @@ lcs_timeout_show(struct device *dev, struct device_attribute *attr, char *buf) { struct lcs_card *card; - card = (struct lcs_card *)dev->driver_data; + card = dev_get_drvdata(dev); return card ? sprintf(buf, "%u\n", card->lancmd_timeout) : 0; } @@ -1980,14 +1999,17 @@ static ssize_t lcs_timeout_store (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct lcs_card *card; - int value; + unsigned int value; + int rc; - card = (struct lcs_card *)dev->driver_data; + card = dev_get_drvdata(dev); if (!card) return 0; - sscanf(buf, "%u", &value); + rc = sscanf(buf, "%u", &value); + if (rc != 1) + return -EINVAL; /* TODO: sanity checks */ card->lancmd_timeout = value; @@ -2001,7 +2023,7 @@ static ssize_t lcs_dev_recover_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct lcs_card *card = dev->driver_data; + struct lcs_card *card = dev_get_drvdata(dev); char *tmp; int i; @@ -2024,10 +2046,17 @@ static struct attribute * lcs_attrs[] = { &dev_attr_recover.attr, NULL, }; - static struct attribute_group lcs_attr_group = { .attrs = lcs_attrs, }; +static const struct attribute_group *lcs_attr_groups[] = { + &lcs_attr_group, + NULL, +}; +static const struct device_type lcs_devtype = { + .name = "lcs", + .groups = lcs_attr_groups, +}; /** * lcs_probe_device is called on establishing a new ccwgroup_device. @@ -2036,7 +2065,6 @@ static int lcs_probe_device(struct ccwgroup_device *ccwgdev) { struct lcs_card *card; - int ret; if (!get_device(&ccwgdev->dev)) return -ENODEV; @@ -2048,13 +2076,7 @@ lcs_probe_device(struct ccwgroup_device *ccwgdev) put_device(&ccwgdev->dev); return -ENOMEM; } - ret = sysfs_create_group(&ccwgdev->dev.kobj, &lcs_attr_group); - if (ret) { - lcs_free_card(card); - put_device(&ccwgdev->dev); - return ret; - } - ccwgdev->dev.driver_data = card; + dev_set_drvdata(&ccwgdev->dev, card); ccwgdev->cdev[0]->handler = lcs_irq; ccwgdev->cdev[1]->handler = lcs_irq; card->gdev = ccwgdev; @@ -2062,7 +2084,9 @@ lcs_probe_device(struct ccwgroup_device *ccwgdev) card->thread_start_mask = 0; card->thread_allowed_mask = 0; card->thread_running_mask = 0; - return 0; + ccwgdev->dev.type = &lcs_devtype; + + return 0; } static int @@ -2071,7 +2095,7 @@ lcs_register_netdev(struct ccwgroup_device *ccwgdev) struct lcs_card *card; LCS_DBF_TEXT(2, setup, "regnetdv"); - card = (struct lcs_card *)ccwgdev->dev.driver_data; + card = dev_get_drvdata(&ccwgdev->dev); if (card->dev->reg_state != NETREG_UNINITIALIZED) return 0; SET_NETDEV_DEV(card->dev, &ccwgdev->dev); @@ -2081,6 +2105,20 @@ lcs_register_netdev(struct ccwgroup_device *ccwgdev) /** * lcs_new_device will be called by setting the group device online. */ +static const struct net_device_ops lcs_netdev_ops = { + .ndo_open = lcs_open_device, + .ndo_stop = lcs_stop_device, + .ndo_get_stats = lcs_getstats, + .ndo_start_xmit = lcs_start_xmit, +}; + +static const struct net_device_ops lcs_mc_netdev_ops = { + .ndo_open = lcs_open_device, + .ndo_stop = lcs_stop_device, + .ndo_get_stats = lcs_getstats, + .ndo_start_xmit = lcs_start_xmit, + .ndo_set_rx_mode = lcs_set_multicast_list, +}; static int lcs_new_device(struct ccwgroup_device *ccwgdev) @@ -2090,7 +2128,7 @@ lcs_new_device(struct ccwgroup_device *ccwgdev) enum lcs_dev_states recover_state; int rc; - card = (struct lcs_card *)ccwgdev->dev.driver_data; + card = dev_get_drvdata(&ccwgdev->dev); if (!card) return -ENODEV; @@ -2100,8 +2138,12 @@ lcs_new_device(struct ccwgroup_device *ccwgdev) card->write.ccwdev = ccwgdev->cdev[1]; recover_state = card->state; - ccw_device_set_online(card->read.ccwdev); - ccw_device_set_online(card->write.ccwdev); + rc = ccw_device_set_online(card->read.ccwdev); + if (rc) + goto out_err; + rc = ccw_device_set_online(card->write.ccwdev); + if (rc) + goto out_werr; LCS_DBF_TEXT(3, setup, "lcsnewdv"); @@ -2109,8 +2151,9 @@ lcs_new_device(struct ccwgroup_device *ccwgdev) rc = lcs_detect(card); if (rc) { LCS_DBF_TEXT(2, setup, "dtctfail"); - PRINT_WARN("Detection of LCS card failed with return code " - "%d (0x%x)\n", rc, rc); + dev_err(&card->dev->dev, + "Detecting a network adapter for LCS devices" + " failed with rc=%d (0x%x)\n", rc, rc); lcs_stopcard(card); goto out; } @@ -2120,18 +2163,12 @@ lcs_new_device(struct ccwgroup_device *ccwgdev) goto netdev_out; } switch (card->lan_type) { -#ifdef CONFIG_NET_ETHERNET +#ifdef CONFIG_ETHERNET case LCS_FRAME_TYPE_ENET: card->lan_type_trans = eth_type_trans; dev = alloc_etherdev(0); break; #endif -#ifdef CONFIG_TR - case LCS_FRAME_TYPE_TR: - card->lan_type_trans = tr_type_trans; - dev = alloc_trdev(0); - break; -#endif #ifdef CONFIG_FDDI case LCS_FRAME_TYPE_FDDI: card->lan_type_trans = fddi_type_trans; @@ -2140,21 +2177,18 @@ lcs_new_device(struct ccwgroup_device *ccwgdev) #endif default: LCS_DBF_TEXT(3, setup, "errinit"); - PRINT_ERR("LCS: Initialization failed\n"); + pr_err(" Initialization failed\n"); goto out; } if (!dev) goto out; card->dev = dev; - card->dev->priv = card; - card->dev->open = lcs_open_device; - card->dev->stop = lcs_stop_device; - card->dev->hard_start_xmit = lcs_start_xmit; - card->dev->get_stats = lcs_getstats; + card->dev->ml_priv = card; + card->dev->netdev_ops = &lcs_netdev_ops; memcpy(card->dev->dev_addr, card->mac, LCS_MAC_LENGTH); #ifdef CONFIG_IP_MULTICAST if (!lcs_check_multicast_support(card)) - card->dev->set_multicast_list = lcs_set_multicast_list; + card->dev->netdev_ops = &lcs_mc_netdev_ops; #endif netdev_out: lcs_set_allowed_threads(card,0xffffffff); @@ -2172,18 +2206,20 @@ netdev_out: goto out; /* Print out supported assists: IPv6 */ - PRINT_INFO("LCS device %s %s IPv6 support\n", card->dev->name, - (card->ip_assists_supported & LCS_IPASS_IPV6_SUPPORT) ? - "with" : "without"); + pr_info("LCS device %s %s IPv6 support\n", card->dev->name, + (card->ip_assists_supported & LCS_IPASS_IPV6_SUPPORT) ? + "with" : "without"); /* Print out supported assist: Multicast */ - PRINT_INFO("LCS device %s %s Multicast support\n", card->dev->name, - (card->ip_assists_supported & LCS_IPASS_MULTICAST_SUPPORT) ? - "with" : "without"); + pr_info("LCS device %s %s Multicast support\n", card->dev->name, + (card->ip_assists_supported & LCS_IPASS_MULTICAST_SUPPORT) ? + "with" : "without"); return 0; out: - ccw_device_set_offline(card->read.ccwdev); ccw_device_set_offline(card->write.ccwdev); +out_werr: + ccw_device_set_offline(card->read.ccwdev); +out_err: return -ENODEV; } @@ -2195,10 +2231,10 @@ __lcs_shutdown_device(struct ccwgroup_device *ccwgdev, int recovery_mode) { struct lcs_card *card; enum lcs_dev_states recover_state; - int ret; + int ret = 0, ret2 = 0, ret3 = 0; LCS_DBF_TEXT(3, setup, "shtdndev"); - card = (struct lcs_card *)ccwgdev->dev.driver_data; + card = dev_get_drvdata(&ccwgdev->dev); if (!card) return -ENODEV; if (recovery_mode == 0) { @@ -2210,13 +2246,15 @@ __lcs_shutdown_device(struct ccwgroup_device *ccwgdev, int recovery_mode) recover_state = card->state; ret = lcs_stop_device(card->dev); - ret = ccw_device_set_offline(card->read.ccwdev); - ret = ccw_device_set_offline(card->write.ccwdev); + ret2 = ccw_device_set_offline(card->read.ccwdev); + ret3 = ccw_device_set_offline(card->write.ccwdev); + if (!ret) + ret = (ret2) ? ret2 : ret3; + if (ret) + LCS_DBF_TEXT_(3, setup, "1err:%d", ret); if (recover_state == DEV_STATE_UP) { card->state = DEV_STATE_RECOVER; } - if (ret) - return ret; return 0; } @@ -2237,22 +2275,22 @@ lcs_recovery(void *ptr) int rc; card = (struct lcs_card *) ptr; - daemonize("lcs_recover"); LCS_DBF_TEXT(4, trace, "recover1"); if (!lcs_do_run_thread(card, LCS_RECOVERY_THREAD)) return 0; LCS_DBF_TEXT(4, trace, "recover2"); gdev = card->gdev; - PRINT_WARN("Recovery of device %s started...\n", gdev->dev.bus_id); + dev_warn(&gdev->dev, + "A recovery process has been started for the LCS device\n"); rc = __lcs_shutdown_device(gdev, 1); rc = lcs_new_device(gdev); if (!rc) - PRINT_INFO("Device %s successfully recovered!\n", - card->dev->name); + pr_info("Device %s successfully recovered!\n", + card->dev->name); else - PRINT_INFO("Device %s could not be recovered!\n", - card->dev->name); + pr_info("Device %s could not be recovered!\n", + card->dev->name); lcs_clear_thread_running_bit(card, LCS_RECOVERY_THREAD); return 0; } @@ -2265,7 +2303,7 @@ lcs_remove_device(struct ccwgroup_device *ccwgdev) { struct lcs_card *card; - card = (struct lcs_card *)ccwgdev->dev.driver_data; + card = dev_get_drvdata(&ccwgdev->dev); if (!card) return; @@ -2276,24 +2314,123 @@ lcs_remove_device(struct ccwgroup_device *ccwgdev) } if (card->dev) unregister_netdev(card->dev); - sysfs_remove_group(&ccwgdev->dev.kobj, &lcs_attr_group); lcs_cleanup_card(card); lcs_free_card(card); + dev_set_drvdata(&ccwgdev->dev, NULL); put_device(&ccwgdev->dev); } +static int lcs_pm_suspend(struct lcs_card *card) +{ + if (card->dev) + netif_device_detach(card->dev); + lcs_set_allowed_threads(card, 0); + lcs_wait_for_threads(card, 0xffffffff); + if (card->state != DEV_STATE_DOWN) + __lcs_shutdown_device(card->gdev, 1); + return 0; +} + +static int lcs_pm_resume(struct lcs_card *card) +{ + int rc = 0; + + if (card->state == DEV_STATE_RECOVER) + rc = lcs_new_device(card->gdev); + if (card->dev) + netif_device_attach(card->dev); + if (rc) { + dev_warn(&card->gdev->dev, "The lcs device driver " + "failed to recover the device\n"); + } + return rc; +} + +static int lcs_prepare(struct ccwgroup_device *gdev) +{ + return 0; +} + +static void lcs_complete(struct ccwgroup_device *gdev) +{ + return; +} + +static int lcs_freeze(struct ccwgroup_device *gdev) +{ + struct lcs_card *card = dev_get_drvdata(&gdev->dev); + return lcs_pm_suspend(card); +} + +static int lcs_thaw(struct ccwgroup_device *gdev) +{ + struct lcs_card *card = dev_get_drvdata(&gdev->dev); + return lcs_pm_resume(card); +} + +static int lcs_restore(struct ccwgroup_device *gdev) +{ + struct lcs_card *card = dev_get_drvdata(&gdev->dev); + return lcs_pm_resume(card); +} + +static struct ccw_device_id lcs_ids[] = { + {CCW_DEVICE(0x3088, 0x08), .driver_info = lcs_channel_type_parallel}, + {CCW_DEVICE(0x3088, 0x1f), .driver_info = lcs_channel_type_2216}, + {CCW_DEVICE(0x3088, 0x60), .driver_info = lcs_channel_type_osa2}, + {}, +}; +MODULE_DEVICE_TABLE(ccw, lcs_ids); + +static struct ccw_driver lcs_ccw_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "lcs", + }, + .ids = lcs_ids, + .probe = ccwgroup_probe_ccwdev, + .remove = ccwgroup_remove_ccwdev, + .int_class = IRQIO_LCS, +}; + /** * LCS ccwgroup driver registration */ static struct ccwgroup_driver lcs_group_driver = { - .owner = THIS_MODULE, - .name = "lcs", - .max_slaves = 2, - .driver_id = 0xD3C3E2, - .probe = lcs_probe_device, + .driver = { + .owner = THIS_MODULE, + .name = "lcs", + }, + .setup = lcs_probe_device, .remove = lcs_remove_device, .set_online = lcs_new_device, .set_offline = lcs_shutdown_device, + .prepare = lcs_prepare, + .complete = lcs_complete, + .freeze = lcs_freeze, + .thaw = lcs_thaw, + .restore = lcs_restore, +}; + +static ssize_t lcs_driver_group_store(struct device_driver *ddrv, + const char *buf, size_t count) +{ + int err; + err = ccwgroup_create_dev(lcs_root_dev, &lcs_group_driver, 2, buf); + return err ? err : count; +} +static DRIVER_ATTR(group, 0200, NULL, lcs_driver_group_store); + +static struct attribute *lcs_drv_attrs[] = { + &driver_attr_group.attr, + NULL, +}; +static struct attribute_group lcs_drv_attr_group = { + .attrs = lcs_drv_attrs, +}; +static const struct attribute_group *lcs_drv_attr_groups[] = { + &lcs_drv_attr_group, + NULL, }; /** @@ -2304,20 +2441,33 @@ __init lcs_init_module(void) { int rc; - PRINT_INFO("Loading %s\n",version); + pr_info("Loading %s\n", version); rc = lcs_register_debug_facility(); LCS_DBF_TEXT(0, setup, "lcsinit"); - if (rc) { - PRINT_ERR("Initialization failed\n"); - return rc; - } - - rc = register_cu3088_discipline(&lcs_group_driver); - if (rc) { - PRINT_ERR("Initialization failed\n"); - return rc; - } + if (rc) + goto out_err; + lcs_root_dev = root_device_register("lcs"); + rc = PTR_ERR_OR_ZERO(lcs_root_dev); + if (rc) + goto register_err; + rc = ccw_driver_register(&lcs_ccw_driver); + if (rc) + goto ccw_err; + lcs_group_driver.driver.groups = lcs_drv_attr_groups; + rc = ccwgroup_driver_register(&lcs_group_driver); + if (rc) + goto ccwgroup_err; return 0; + +ccwgroup_err: + ccw_driver_unregister(&lcs_ccw_driver); +ccw_err: + root_device_unregister(lcs_root_dev); +register_err: + lcs_unregister_debug_facility(); +out_err: + pr_err("Initializing the lcs device driver failed\n"); + return rc; } @@ -2327,9 +2477,11 @@ __init lcs_init_module(void) static void __exit lcs_cleanup_module(void) { - PRINT_INFO("Terminating lcs module.\n"); + pr_info("Terminating lcs module.\n"); LCS_DBF_TEXT(0, trace, "cleanup"); - unregister_cu3088_discipline(&lcs_group_driver); + ccwgroup_driver_unregister(&lcs_group_driver); + ccw_driver_unregister(&lcs_ccw_driver); + root_device_unregister(lcs_root_dev); lcs_unregister_debug_facility(); } diff --git a/drivers/s390/net/lcs.h b/drivers/s390/net/lcs.h index d58fea52557..150fcb4cebc 100644 --- a/drivers/s390/net/lcs.h +++ b/drivers/s390/net/lcs.h @@ -16,15 +16,9 @@ do { \ debug_event(lcs_dbf_##name,level,(void*)(addr),len); \ } while (0) -/* Allow to sort out low debug levels early to avoid wasted sprints */ -static inline int lcs_dbf_passes(debug_info_t *dbf_grp, int level) -{ - return (level <= dbf_grp->level); -} - #define LCS_DBF_TEXT_(level,name,text...) \ do { \ - if (lcs_dbf_passes(lcs_dbf_##name, level)) { \ + if (debug_level_enabled(lcs_dbf_##name, level)) { \ sprintf(debug_buffer, text); \ debug_text_event(lcs_dbf_##name, level, debug_buffer); \ } \ @@ -34,8 +28,26 @@ static inline int lcs_dbf_passes(debug_info_t *dbf_grp, int level) * sysfs related stuff */ #define CARD_FROM_DEV(cdev) \ - (struct lcs_card *) \ - ((struct ccwgroup_device *)cdev->dev.driver_data)->dev.driver_data; + (struct lcs_card *) dev_get_drvdata( \ + &((struct ccwgroup_device *)dev_get_drvdata(&cdev->dev))->dev); + +/** + * Enum for classifying detected devices. + */ +enum lcs_channel_types { + /* Device is not a channel */ + lcs_channel_type_none, + + /* Device is a 2216 channel */ + lcs_channel_type_parallel, + + /* Device is a 2216 channel */ + lcs_channel_type_2216, + + /* Device is a OSA2 card */ + lcs_channel_type_osa2 +}; + /** * CCW commands used in this driver */ diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c index 9242b5acc66..ce16d1bdb20 100644 --- a/drivers/s390/net/netiucv.c +++ b/drivers/s390/net/netiucv.c @@ -1,11 +1,15 @@ /* * IUCV network driver * - * Copyright 2001 IBM Deutschland Entwicklung GmbH, IBM Corporation - * Author(s): Fritz Elfert (elfert@de.ibm.com, felfert@millenux.com) + * Copyright IBM Corp. 2001, 2009 * - * Sysfs integration and all bugs therein by Cornelia Huck - * (cornelia.huck@de.ibm.com) + * Author(s): + * Original netiucv driver: + * Fritz Elfert (elfert@de.ibm.com, felfert@millenux.com) + * Sysfs integration and all bugs therein: + * Cornelia Huck (cornelia.huck@de.ibm.com) + * PM functions: + * Ursula Braun (ursula.braun@de.ibm.com) * * Documentation used: * the source of the original IUCV driver by: @@ -31,6 +35,9 @@ * */ +#define KMSG_COMPONENT "netiucv" +#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt + #undef DEBUG #include <linux/module.h> @@ -56,6 +63,7 @@ #include <asm/io.h> #include <asm/uaccess.h> +#include <asm/ebcdic.h> #include <net/iucv/iucv.h> #include "fsm.h" @@ -68,7 +76,7 @@ MODULE_DESCRIPTION ("Linux for S/390 IUCV network driver"); * Debug Facility stuff */ #define IUCV_DBF_SETUP_NAME "iucv_setup" -#define IUCV_DBF_SETUP_LEN 32 +#define IUCV_DBF_SETUP_LEN 64 #define IUCV_DBF_SETUP_PAGES 2 #define IUCV_DBF_SETUP_NR_AREAS 1 #define IUCV_DBF_SETUP_LEVEL 3 @@ -97,20 +105,12 @@ MODULE_DESCRIPTION ("Linux for S/390 IUCV network driver"); DECLARE_PER_CPU(char[256], iucv_dbf_txt_buf); -/* Allow to sort out low debug levels early to avoid wasted sprints */ -static inline int iucv_dbf_passes(debug_info_t *dbf_grp, int level) -{ - return (level <= dbf_grp->level); -} - #define IUCV_DBF_TEXT_(name, level, text...) \ do { \ - if (iucv_dbf_passes(iucv_dbf_##name, level)) { \ - char* iucv_dbf_txt_buf = \ - get_cpu_var(iucv_dbf_txt_buf); \ - sprintf(iucv_dbf_txt_buf, text); \ - debug_text_event(iucv_dbf_##name, level, \ - iucv_dbf_txt_buf); \ + if (debug_level_enabled(iucv_dbf_##name, level)) { \ + char* __buf = get_cpu_var(iucv_dbf_txt_buf); \ + sprintf(__buf, text); \ + debug_text_event(iucv_dbf_##name, level, __buf); \ put_cpu_var(iucv_dbf_txt_buf); \ } \ } while (0) @@ -124,32 +124,29 @@ static inline int iucv_dbf_passes(debug_info_t *dbf_grp, int level) /** * some more debug stuff */ -#define IUCV_HEXDUMP16(importance,header,ptr) \ -PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \ - "%02x %02x %02x %02x %02x %02x %02x %02x\n", \ - *(((char*)ptr)),*(((char*)ptr)+1),*(((char*)ptr)+2), \ - *(((char*)ptr)+3),*(((char*)ptr)+4),*(((char*)ptr)+5), \ - *(((char*)ptr)+6),*(((char*)ptr)+7),*(((char*)ptr)+8), \ - *(((char*)ptr)+9),*(((char*)ptr)+10),*(((char*)ptr)+11), \ - *(((char*)ptr)+12),*(((char*)ptr)+13), \ - *(((char*)ptr)+14),*(((char*)ptr)+15)); \ -PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \ - "%02x %02x %02x %02x %02x %02x %02x %02x\n", \ - *(((char*)ptr)+16),*(((char*)ptr)+17), \ - *(((char*)ptr)+18),*(((char*)ptr)+19), \ - *(((char*)ptr)+20),*(((char*)ptr)+21), \ - *(((char*)ptr)+22),*(((char*)ptr)+23), \ - *(((char*)ptr)+24),*(((char*)ptr)+25), \ - *(((char*)ptr)+26),*(((char*)ptr)+27), \ - *(((char*)ptr)+28),*(((char*)ptr)+29), \ - *(((char*)ptr)+30),*(((char*)ptr)+31)); - #define PRINTK_HEADER " iucv: " /* for debugging */ +/* dummy device to make sure netiucv_pm functions are called */ +static struct device *netiucv_dev; + +static int netiucv_pm_prepare(struct device *); +static void netiucv_pm_complete(struct device *); +static int netiucv_pm_freeze(struct device *); +static int netiucv_pm_restore_thaw(struct device *); + +static const struct dev_pm_ops netiucv_pm_ops = { + .prepare = netiucv_pm_prepare, + .complete = netiucv_pm_complete, + .freeze = netiucv_pm_freeze, + .thaw = netiucv_pm_restore_thaw, + .restore = netiucv_pm_restore_thaw, +}; + static struct device_driver netiucv_driver = { .owner = THIS_MODULE, .name = "netiucv", .bus = &iucv_bus, + .pm = &netiucv_pm_ops, }; static int netiucv_callback_connreq(struct iucv_path *, @@ -204,6 +201,7 @@ struct iucv_connection { struct net_device *netdev; struct connection_profile prof; char userid[9]; + char userdata[17]; }; /** @@ -230,6 +228,7 @@ struct netiucv_priv { fsm_instance *fsm; struct iucv_connection *conn; struct device *dev; + int pm_state; }; /** @@ -240,7 +239,7 @@ struct ll_header { }; #define NETIUCV_HDRLEN (sizeof(struct ll_header)) -#define NETIUCV_BUFSIZE_MAX 32768 +#define NETIUCV_BUFSIZE_MAX 65537 #define NETIUCV_BUFSIZE_DEFAULT NETIUCV_BUFSIZE_MAX #define NETIUCV_MTU_MAX (NETIUCV_BUFSIZE_MAX - NETIUCV_HDRLEN) #define NETIUCV_MTU_DEFAULT 9216 @@ -265,7 +264,12 @@ static inline int netiucv_test_and_set_busy(struct net_device *dev) return test_and_set_bit(0, &priv->tbusy); } -static u8 iucvMagic[16] = { +static u8 iucvMagic_ascii[16] = { + 0x30, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x30, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 +}; + +static u8 iucvMagic_ebcdic[16] = { 0xF0, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0xF0, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40 }; @@ -278,18 +282,38 @@ static u8 iucvMagic[16] = { * * @returns The printable string (static data!!) */ -static char *netiucv_printname(char *name) +static char *netiucv_printname(char *name, int len) { - static char tmp[9]; + static char tmp[17]; char *p = tmp; - memcpy(tmp, name, 8); - tmp[8] = '\0'; - while (*p && (!isspace(*p))) + memcpy(tmp, name, len); + tmp[len] = '\0'; + while (*p && ((p - tmp) < len) && (!isspace(*p))) p++; *p = '\0'; return tmp; } +static char *netiucv_printuser(struct iucv_connection *conn) +{ + static char tmp_uid[9]; + static char tmp_udat[17]; + static char buf[100]; + + if (memcmp(conn->userdata, iucvMagic_ebcdic, 16)) { + tmp_uid[8] = '\0'; + tmp_udat[16] = '\0'; + memcpy(tmp_uid, conn->userid, 8); + memcpy(tmp_uid, netiucv_printname(tmp_uid, 8), 8); + memcpy(tmp_udat, conn->userdata, 16); + EBCASC(tmp_udat, 16); + memcpy(tmp_udat, netiucv_printname(tmp_udat, 16), 16); + sprintf(buf, "%s.%s", tmp_uid, tmp_udat); + return buf; + } else + return netiucv_printname(conn->userid, 8); +} + /** * States of the interface statemachine. */ @@ -540,15 +564,18 @@ static int netiucv_callback_connreq(struct iucv_path *path, { struct iucv_connection *conn = path->private; struct iucv_event ev; + static char tmp_user[9]; + static char tmp_udat[17]; int rc; - if (memcmp(iucvMagic, ipuser, sizeof(ipuser))) - /* ipuser must match iucvMagic. */ - return -EINVAL; rc = -EINVAL; + memcpy(tmp_user, netiucv_printname(ipvmid, 8), 8); + memcpy(tmp_udat, ipuser, 16); + EBCASC(tmp_udat, 16); read_lock_bh(&iucv_connection_rwlock); list_for_each_entry(conn, &iucv_connection_list, list) { - if (strncmp(ipvmid, conn->userid, 8)) + if (strncmp(ipvmid, conn->userid, 8) || + strncmp(ipuser, conn->userdata, 16)) continue; /* Found a matching connection for this path. */ conn->path = path; @@ -557,6 +584,8 @@ static int netiucv_callback_connreq(struct iucv_path *path, fsm_event(conn->fsm, CONN_EVENT_CONN_REQ, &ev); rc = 0; } + IUCV_DBF_TEXT_(setup, 2, "Connection requested for %s.%s\n", + tmp_user, netiucv_printname(tmp_udat, 16)); read_unlock_bh(&iucv_connection_rwlock); return rc; } @@ -651,7 +680,6 @@ static void netiucv_unpack_skb(struct iucv_connection *conn, * we must use netif_rx_ni() instead of netif_rx() */ netif_rx_ni(skb); - dev->last_rx = jiffies; skb_pull(pskb, header->next); skb_put(pskb, NETIUCV_HDRLEN); } @@ -711,19 +739,23 @@ static void conn_action_txdone(fsm_instance *fi, int event, void *arg) IUCV_DBF_TEXT(trace, 4, __func__); - if (conn && conn->netdev) - privptr = netdev_priv(conn->netdev); + if (!conn || !conn->netdev) { + IUCV_DBF_TEXT(data, 2, + "Send confirmation for unlinked connection\n"); + return; + } + privptr = netdev_priv(conn->netdev); conn->prof.tx_pending--; if (single_flag) { if ((skb = skb_dequeue(&conn->commit_queue))) { atomic_dec(&skb->users); - dev_kfree_skb_any(skb); if (privptr) { privptr->stats.tx_packets++; privptr->stats.tx_bytes += (skb->len - NETIUCV_HDRLEN - - NETIUCV_HDRLEN); + - NETIUCV_HDRLEN); } + dev_kfree_skb_any(skb); } } conn->tx_buff->data = conn->tx_buff->head; @@ -794,7 +826,7 @@ static void conn_action_connaccept(fsm_instance *fi, int event, void *arg) conn->path = path; path->msglim = NETIUCV_QUEUELEN_DEFAULT; path->flags = 0; - rc = iucv_path_accept(path, &netiucv_handler, NULL, conn); + rc = iucv_path_accept(path, &netiucv_handler, conn->userdata , conn); if (rc) { IUCV_DBF_TEXT_(setup, 2, "rc %d from iucv_accept", rc); return; @@ -832,7 +864,7 @@ static void conn_action_conntimsev(fsm_instance *fi, int event, void *arg) IUCV_DBF_TEXT(trace, 3, __func__); fsm_deltimer(&conn->timer); - iucv_path_sever(conn->path, NULL); + iucv_path_sever(conn->path, conn->userdata); fsm_newstate(fi, CONN_STATE_STARTWAIT); } @@ -845,8 +877,9 @@ static void conn_action_connsever(fsm_instance *fi, int event, void *arg) IUCV_DBF_TEXT(trace, 3, __func__); fsm_deltimer(&conn->timer); - iucv_path_sever(conn->path, NULL); - PRINT_INFO("%s: Remote dropped connection\n", netdev->name); + iucv_path_sever(conn->path, conn->userdata); + dev_info(privptr->dev, "The peer z/VM guest %s has closed the " + "connection\n", netiucv_printuser(conn)); IUCV_DBF_TEXT(data, 2, "conn_action_connsever: Remote dropped connection\n"); fsm_newstate(fi, CONN_STATE_STARTWAIT); @@ -856,13 +889,13 @@ static void conn_action_connsever(fsm_instance *fi, int event, void *arg) static void conn_action_start(fsm_instance *fi, int event, void *arg) { struct iucv_connection *conn = arg; + struct net_device *netdev = conn->netdev; + struct netiucv_priv *privptr = netdev_priv(netdev); int rc; IUCV_DBF_TEXT(trace, 3, __func__); fsm_newstate(fi, CONN_STATE_STARTWAIT); - IUCV_DBF_TEXT_(setup, 2, "%s('%s'): connecting ...\n", - conn->netdev->name, conn->userid); /* * We must set the state before calling iucv_connect because the @@ -872,45 +905,52 @@ static void conn_action_start(fsm_instance *fi, int event, void *arg) fsm_newstate(fi, CONN_STATE_SETUPWAIT); conn->path = iucv_path_alloc(NETIUCV_QUEUELEN_DEFAULT, 0, GFP_KERNEL); + IUCV_DBF_TEXT_(setup, 2, "%s: connecting to %s ...\n", + netdev->name, netiucv_printuser(conn)); + rc = iucv_path_connect(conn->path, &netiucv_handler, conn->userid, - NULL, iucvMagic, conn); + NULL, conn->userdata, conn); switch (rc) { case 0: - conn->netdev->tx_queue_len = conn->path->msglim; + netdev->tx_queue_len = conn->path->msglim; fsm_addtimer(&conn->timer, NETIUCV_TIMEOUT_5SEC, CONN_EVENT_TIMER, conn); return; case 11: - PRINT_INFO("%s: User %s is currently not available.\n", - conn->netdev->name, - netiucv_printname(conn->userid)); + dev_warn(privptr->dev, + "The IUCV device failed to connect to z/VM guest %s\n", + netiucv_printname(conn->userid, 8)); fsm_newstate(fi, CONN_STATE_STARTWAIT); break; case 12: - PRINT_INFO("%s: User %s is currently not ready.\n", - conn->netdev->name, - netiucv_printname(conn->userid)); + dev_warn(privptr->dev, + "The IUCV device failed to connect to the peer on z/VM" + " guest %s\n", netiucv_printname(conn->userid, 8)); fsm_newstate(fi, CONN_STATE_STARTWAIT); break; case 13: - PRINT_WARN("%s: Too many IUCV connections.\n", - conn->netdev->name); + dev_err(privptr->dev, + "Connecting the IUCV device would exceed the maximum" + " number of IUCV connections\n"); fsm_newstate(fi, CONN_STATE_CONNERR); break; case 14: - PRINT_WARN("%s: User %s has too many IUCV connections.\n", - conn->netdev->name, - netiucv_printname(conn->userid)); + dev_err(privptr->dev, + "z/VM guest %s has too many IUCV connections" + " to connect with the IUCV device\n", + netiucv_printname(conn->userid, 8)); fsm_newstate(fi, CONN_STATE_CONNERR); break; case 15: - PRINT_WARN("%s: No IUCV authorization in CP directory.\n", - conn->netdev->name); + dev_err(privptr->dev, + "The IUCV device cannot connect to a z/VM guest with no" + " IUCV authorization\n"); fsm_newstate(fi, CONN_STATE_CONNERR); break; default: - PRINT_WARN("%s: iucv_connect returned error %d\n", - conn->netdev->name, rc); + dev_err(privptr->dev, + "Connecting the IUCV device failed with error %d\n", + rc); fsm_newstate(fi, CONN_STATE_CONNERR); break; } @@ -943,7 +983,7 @@ static void conn_action_stop(fsm_instance *fi, int event, void *arg) netiucv_purge_skb_queue(&conn->collect_queue); if (conn->path) { IUCV_DBF_TEXT(trace, 5, "calling iucv_path_sever\n"); - iucv_path_sever(conn->path, iucvMagic); + iucv_path_sever(conn->path, conn->userdata); kfree(conn->path); conn->path = NULL; } @@ -1059,8 +1099,10 @@ dev_action_connup(fsm_instance *fi, int event, void *arg) switch (fsm_getstate(fi)) { case DEV_STATE_STARTWAIT: fsm_newstate(fi, DEV_STATE_RUNNING); - PRINT_INFO("%s: connected with remote side %s\n", - dev->name, privptr->conn->userid); + dev_info(privptr->dev, + "The IUCV device has been connected" + " successfully to %s\n", + netiucv_printuser(privptr->conn)); IUCV_DBF_TEXT(setup, 3, "connection is up and running\n"); break; @@ -1254,6 +1296,72 @@ static int netiucv_close(struct net_device *dev) return 0; } +static int netiucv_pm_prepare(struct device *dev) +{ + IUCV_DBF_TEXT(trace, 3, __func__); + return 0; +} + +static void netiucv_pm_complete(struct device *dev) +{ + IUCV_DBF_TEXT(trace, 3, __func__); + return; +} + +/** + * netiucv_pm_freeze() - Freeze PM callback + * @dev: netiucv device + * + * close open netiucv interfaces + */ +static int netiucv_pm_freeze(struct device *dev) +{ + struct netiucv_priv *priv = dev_get_drvdata(dev); + struct net_device *ndev = NULL; + int rc = 0; + + IUCV_DBF_TEXT(trace, 3, __func__); + if (priv && priv->conn) + ndev = priv->conn->netdev; + if (!ndev) + goto out; + netif_device_detach(ndev); + priv->pm_state = fsm_getstate(priv->fsm); + rc = netiucv_close(ndev); +out: + return rc; +} + +/** + * netiucv_pm_restore_thaw() - Thaw and restore PM callback + * @dev: netiucv device + * + * re-open netiucv interfaces closed during freeze + */ +static int netiucv_pm_restore_thaw(struct device *dev) +{ + struct netiucv_priv *priv = dev_get_drvdata(dev); + struct net_device *ndev = NULL; + int rc = 0; + + IUCV_DBF_TEXT(trace, 3, __func__); + if (priv && priv->conn) + ndev = priv->conn->netdev; + if (!ndev) + goto out; + switch (priv->pm_state) { + case DEV_STATE_RUNNING: + case DEV_STATE_STARTWAIT: + rc = netiucv_open(ndev); + break; + default: + break; + } + netif_device_attach(ndev); +out: + return rc; +} + /** * Start transmission of a packet. * Called from generic network device layer. @@ -1277,14 +1385,14 @@ static int netiucv_tx(struct sk_buff *skb, struct net_device *dev) if (skb == NULL) { IUCV_DBF_TEXT(data, 2, "netiucv_tx: skb is NULL\n"); privptr->stats.tx_dropped++; - return 0; + return NETDEV_TX_OK; } if (skb_headroom(skb) < NETIUCV_HDRLEN) { IUCV_DBF_TEXT(data, 2, "netiucv_tx: skb_headroom < NETIUCV_HDRLEN\n"); dev_kfree_skb(skb); privptr->stats.tx_dropped++; - return 0; + return NETDEV_TX_OK; } /** @@ -1296,17 +1404,17 @@ static int netiucv_tx(struct sk_buff *skb, struct net_device *dev) privptr->stats.tx_dropped++; privptr->stats.tx_errors++; privptr->stats.tx_carrier_errors++; - return 0; + return NETDEV_TX_OK; } if (netiucv_test_and_set_busy(dev)) { IUCV_DBF_TEXT(data, 2, "EBUSY from netiucv_tx\n"); - return -EBUSY; + return NETDEV_TX_BUSY; } dev->trans_start = jiffies; - rc = netiucv_transmit_skb(privptr->conn, skb) != 0; + rc = netiucv_transmit_skb(privptr->conn, skb); netiucv_clear_busy(dev); - return rc; + return rc ? NETDEV_TX_BUSY : NETDEV_TX_OK; } /** @@ -1353,48 +1461,75 @@ static int netiucv_change_mtu(struct net_device * dev, int new_mtu) static ssize_t user_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 5, __func__); - return sprintf(buf, "%s\n", netiucv_printname(priv->conn->userid)); + return sprintf(buf, "%s\n", netiucv_printuser(priv->conn)); } -static ssize_t user_write(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static int netiucv_check_user(const char *buf, size_t count, char *username, + char *userdata) { - struct netiucv_priv *priv = dev->driver_data; - struct net_device *ndev = priv->conn->netdev; - char *p; - char *tmp; - char username[9]; - int i; - struct iucv_connection *cp; + const char *p; + int i; - IUCV_DBF_TEXT(trace, 3, __func__); - if (count > 9) { - IUCV_DBF_TEXT_(setup, 2, - "%d is length of username\n", (int) count); + p = strchr(buf, '.'); + if ((p && ((count > 26) || + ((p - buf) > 8) || + (buf + count - p > 18))) || + (!p && (count > 9))) { + IUCV_DBF_TEXT(setup, 2, "conn_write: too long\n"); return -EINVAL; } - tmp = strsep((char **) &buf, "\n"); - for (i = 0, p = tmp; i < 8 && *p; i++, p++) { - if (isalnum(*p) || (*p == '$')) { - username[i]= toupper(*p); + for (i = 0, p = buf; i < 8 && *p && *p != '.'; i++, p++) { + if (isalnum(*p) || *p == '$') { + username[i] = toupper(*p); continue; } - if (*p == '\n') { + if (*p == '\n') /* trailing lf, grr */ break; - } IUCV_DBF_TEXT_(setup, 2, - "username: invalid character %c\n", *p); + "conn_write: invalid character %02x\n", *p); return -EINVAL; } while (i < 8) username[i++] = ' '; username[8] = '\0'; + if (*p == '.') { + p++; + for (i = 0; i < 16 && *p; i++, p++) { + if (*p == '\n') + break; + userdata[i] = toupper(*p); + } + while (i > 0 && i < 16) + userdata[i++] = ' '; + } else + memcpy(userdata, iucvMagic_ascii, 16); + userdata[16] = '\0'; + ASCEBC(userdata, 16); + + return 0; +} + +static ssize_t user_write(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct netiucv_priv *priv = dev_get_drvdata(dev); + struct net_device *ndev = priv->conn->netdev; + char username[9]; + char userdata[17]; + int rc; + struct iucv_connection *cp; + + IUCV_DBF_TEXT(trace, 3, __func__); + rc = netiucv_check_user(buf, count, username, userdata); + if (rc) + return rc; + if (memcmp(username, priv->conn->userid, 9) && (ndev->flags & (IFF_UP | IFF_RUNNING))) { /* username changed while the interface is active. */ @@ -1403,15 +1538,17 @@ static ssize_t user_write(struct device *dev, struct device_attribute *attr, } read_lock_bh(&iucv_connection_rwlock); list_for_each_entry(cp, &iucv_connection_list, list) { - if (!strncmp(username, cp->userid, 9) && cp->netdev != ndev) { + if (!strncmp(username, cp->userid, 9) && + !strncmp(userdata, cp->userdata, 17) && cp->netdev != ndev) { read_unlock_bh(&iucv_connection_rwlock); - IUCV_DBF_TEXT_(setup, 2, "user_write: Connection " - "to %s already exists\n", username); + IUCV_DBF_TEXT_(setup, 2, "user_write: Connection to %s " + "already exists\n", netiucv_printuser(cp)); return -EEXIST; } } read_unlock_bh(&iucv_connection_rwlock); memcpy(priv->conn->userid, username, 9); + memcpy(priv->conn->userdata, userdata, 17); return count; } @@ -1419,7 +1556,8 @@ static DEVICE_ATTR(user, 0644, user_show, user_write); static ssize_t buffer_show (struct device *dev, struct device_attribute *attr, char *buf) -{ struct netiucv_priv *priv = dev->driver_data; +{ + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 5, __func__); return sprintf(buf, "%d\n", priv->conn->max_buffsize); @@ -1428,7 +1566,7 @@ static ssize_t buffer_show (struct device *dev, struct device_attribute *attr, static ssize_t buffer_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); struct net_device *ndev = priv->conn->netdev; char *e; int bs1; @@ -1440,7 +1578,8 @@ static ssize_t buffer_write (struct device *dev, struct device_attribute *attr, bs1 = simple_strtoul(buf, &e, 0); if (e && (!isspace(*e))) { - IUCV_DBF_TEXT_(setup, 2, "buffer_write: invalid char %c\n", *e); + IUCV_DBF_TEXT_(setup, 2, "buffer_write: invalid char %02x\n", + *e); return -EINVAL; } if (bs1 > NETIUCV_BUFSIZE_MAX) { @@ -1476,7 +1615,7 @@ static DEVICE_ATTR(buffer, 0644, buffer_show, buffer_write); static ssize_t dev_fsm_show (struct device *dev, struct device_attribute *attr, char *buf) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 5, __func__); return sprintf(buf, "%s\n", fsm_getstate_str(priv->fsm)); @@ -1487,7 +1626,7 @@ static DEVICE_ATTR(device_fsm_state, 0444, dev_fsm_show, NULL); static ssize_t conn_fsm_show (struct device *dev, struct device_attribute *attr, char *buf) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 5, __func__); return sprintf(buf, "%s\n", fsm_getstate_str(priv->conn->fsm)); @@ -1498,7 +1637,7 @@ static DEVICE_ATTR(connection_fsm_state, 0444, conn_fsm_show, NULL); static ssize_t maxmulti_show (struct device *dev, struct device_attribute *attr, char *buf) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 5, __func__); return sprintf(buf, "%ld\n", priv->conn->prof.maxmulti); @@ -1508,7 +1647,7 @@ static ssize_t maxmulti_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 4, __func__); priv->conn->prof.maxmulti = 0; @@ -1520,7 +1659,7 @@ static DEVICE_ATTR(max_tx_buffer_used, 0644, maxmulti_show, maxmulti_write); static ssize_t maxcq_show (struct device *dev, struct device_attribute *attr, char *buf) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 5, __func__); return sprintf(buf, "%ld\n", priv->conn->prof.maxcqueue); @@ -1529,7 +1668,7 @@ static ssize_t maxcq_show (struct device *dev, struct device_attribute *attr, static ssize_t maxcq_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 4, __func__); priv->conn->prof.maxcqueue = 0; @@ -1541,7 +1680,7 @@ static DEVICE_ATTR(max_chained_skbs, 0644, maxcq_show, maxcq_write); static ssize_t sdoio_show (struct device *dev, struct device_attribute *attr, char *buf) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 5, __func__); return sprintf(buf, "%ld\n", priv->conn->prof.doios_single); @@ -1550,7 +1689,7 @@ static ssize_t sdoio_show (struct device *dev, struct device_attribute *attr, static ssize_t sdoio_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 4, __func__); priv->conn->prof.doios_single = 0; @@ -1562,7 +1701,7 @@ static DEVICE_ATTR(tx_single_write_ops, 0644, sdoio_show, sdoio_write); static ssize_t mdoio_show (struct device *dev, struct device_attribute *attr, char *buf) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 5, __func__); return sprintf(buf, "%ld\n", priv->conn->prof.doios_multi); @@ -1571,7 +1710,7 @@ static ssize_t mdoio_show (struct device *dev, struct device_attribute *attr, static ssize_t mdoio_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 5, __func__); priv->conn->prof.doios_multi = 0; @@ -1583,7 +1722,7 @@ static DEVICE_ATTR(tx_multi_write_ops, 0644, mdoio_show, mdoio_write); static ssize_t txlen_show (struct device *dev, struct device_attribute *attr, char *buf) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 5, __func__); return sprintf(buf, "%ld\n", priv->conn->prof.txlen); @@ -1592,7 +1731,7 @@ static ssize_t txlen_show (struct device *dev, struct device_attribute *attr, static ssize_t txlen_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 4, __func__); priv->conn->prof.txlen = 0; @@ -1604,7 +1743,7 @@ static DEVICE_ATTR(netto_bytes, 0644, txlen_show, txlen_write); static ssize_t txtime_show (struct device *dev, struct device_attribute *attr, char *buf) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 5, __func__); return sprintf(buf, "%ld\n", priv->conn->prof.tx_time); @@ -1613,7 +1752,7 @@ static ssize_t txtime_show (struct device *dev, struct device_attribute *attr, static ssize_t txtime_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 4, __func__); priv->conn->prof.tx_time = 0; @@ -1625,7 +1764,7 @@ static DEVICE_ATTR(max_tx_io_time, 0644, txtime_show, txtime_write); static ssize_t txpend_show (struct device *dev, struct device_attribute *attr, char *buf) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 5, __func__); return sprintf(buf, "%ld\n", priv->conn->prof.tx_pending); @@ -1634,7 +1773,7 @@ static ssize_t txpend_show (struct device *dev, struct device_attribute *attr, static ssize_t txpend_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 4, __func__); priv->conn->prof.tx_pending = 0; @@ -1646,7 +1785,7 @@ static DEVICE_ATTR(tx_pending, 0644, txpend_show, txpend_write); static ssize_t txmpnd_show (struct device *dev, struct device_attribute *attr, char *buf) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 5, __func__); return sprintf(buf, "%ld\n", priv->conn->prof.tx_max_pending); @@ -1655,7 +1794,7 @@ static ssize_t txmpnd_show (struct device *dev, struct device_attribute *attr, static ssize_t txmpnd_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct netiucv_priv *priv = dev->driver_data; + struct netiucv_priv *priv = dev_get_drvdata(dev); IUCV_DBF_TEXT(trace, 4, __func__); priv->conn->prof.tx_max_pending = 0; @@ -1693,26 +1832,11 @@ static struct attribute_group netiucv_stat_attr_group = { .attrs = netiucv_stat_attrs, }; -static int netiucv_add_files(struct device *dev) -{ - int ret; - - IUCV_DBF_TEXT(trace, 3, __func__); - ret = sysfs_create_group(&dev->kobj, &netiucv_attr_group); - if (ret) - return ret; - ret = sysfs_create_group(&dev->kobj, &netiucv_stat_attr_group); - if (ret) - sysfs_remove_group(&dev->kobj, &netiucv_attr_group); - return ret; -} - -static void netiucv_remove_files(struct device *dev) -{ - IUCV_DBF_TEXT(trace, 3, __func__); - sysfs_remove_group(&dev->kobj, &netiucv_stat_attr_group); - sysfs_remove_group(&dev->kobj, &netiucv_attr_group); -} +static const struct attribute_group *netiucv_attr_groups[] = { + &netiucv_stat_attr_group, + &netiucv_attr_group, + NULL, +}; static int netiucv_register_device(struct net_device *ndev) { @@ -1720,13 +1844,13 @@ static int netiucv_register_device(struct net_device *ndev) struct device *dev = kzalloc(sizeof(struct device), GFP_KERNEL); int ret; - IUCV_DBF_TEXT(trace, 3, __func__); if (dev) { - snprintf(dev->bus_id, BUS_ID_SIZE, "net%s", ndev->name); + dev_set_name(dev, "net%s", ndev->name); dev->bus = &iucv_bus; dev->parent = iucv_root; + dev->groups = netiucv_attr_groups; /* * The release function could be called after the * module has been unloaded. It's _only_ task is to @@ -1740,25 +1864,18 @@ static int netiucv_register_device(struct net_device *ndev) return -ENOMEM; ret = device_register(dev); - - if (ret) + if (ret) { + put_device(dev); return ret; - ret = netiucv_add_files(dev); - if (ret) - goto out_unreg; + } priv->dev = dev; - dev->driver_data = priv; + dev_set_drvdata(dev, priv); return 0; - -out_unreg: - device_unregister(dev); - return ret; } static void netiucv_unregister_device(struct device *dev) { IUCV_DBF_TEXT(trace, 3, __func__); - netiucv_remove_files(dev); device_unregister(dev); } @@ -1767,7 +1884,8 @@ static void netiucv_unregister_device(struct device *dev) * Add it to the list of netiucv connections; */ static struct iucv_connection *netiucv_new_connection(struct net_device *dev, - char *username) + char *username, + char *userdata) { struct iucv_connection *conn; @@ -1796,6 +1914,8 @@ static struct iucv_connection *netiucv_new_connection(struct net_device *dev, fsm_settimer(conn->fsm, &conn->timer); fsm_newstate(conn->fsm, CONN_STATE_INVALID); + if (userdata) + memcpy(conn->userdata, userdata, 17); if (username) { memcpy(conn->userid, username, 9); fsm_newstate(conn->fsm, CONN_STATE_STOPPED); @@ -1822,6 +1942,7 @@ out: */ static void netiucv_remove_connection(struct iucv_connection *conn) { + IUCV_DBF_TEXT(trace, 3, __func__); write_lock_bh(&iucv_connection_rwlock); list_del_init(&conn->list); @@ -1829,7 +1950,7 @@ static void netiucv_remove_connection(struct iucv_connection *conn) fsm_deltimer(&conn->timer); netiucv_purge_skb_queue(&conn->collect_queue); if (conn->path) { - iucv_path_sever(conn->path, iucvMagic); + iucv_path_sever(conn->path, conn->userdata); kfree(conn->path); conn->path = NULL; } @@ -1865,26 +1986,30 @@ static void netiucv_free_netdevice(struct net_device *dev) /** * Initialize a net device. (Called from kernel in alloc_netdev()) */ +static const struct net_device_ops netiucv_netdev_ops = { + .ndo_open = netiucv_open, + .ndo_stop = netiucv_close, + .ndo_get_stats = netiucv_stats, + .ndo_start_xmit = netiucv_tx, + .ndo_change_mtu = netiucv_change_mtu, +}; + static void netiucv_setup_netdevice(struct net_device *dev) { dev->mtu = NETIUCV_MTU_DEFAULT; - dev->hard_start_xmit = netiucv_tx; - dev->open = netiucv_open; - dev->stop = netiucv_close; - dev->get_stats = netiucv_stats; - dev->change_mtu = netiucv_change_mtu; dev->destructor = netiucv_free_netdevice; dev->hard_header_len = NETIUCV_HDRLEN; dev->addr_len = 0; dev->type = ARPHRD_SLIP; dev->tx_queue_len = NETIUCV_QUEUELEN_DEFAULT; dev->flags = IFF_POINTOPOINT | IFF_NOARP; + dev->netdev_ops = &netiucv_netdev_ops; } /** * Allocate and initialize everything of a net device. */ -static struct net_device *netiucv_init_netdevice(char *username) +static struct net_device *netiucv_init_netdevice(char *username, char *userdata) { struct netiucv_priv *privptr; struct net_device *dev; @@ -1893,6 +2018,7 @@ static struct net_device *netiucv_init_netdevice(char *username) netiucv_setup_netdevice); if (!dev) return NULL; + rtnl_lock(); if (dev_alloc_name(dev, dev->name) < 0) goto out_netdev; @@ -1903,7 +2029,7 @@ static struct net_device *netiucv_init_netdevice(char *username) if (!privptr->fsm) goto out_netdev; - privptr->conn = netiucv_new_connection(dev, username); + privptr->conn = netiucv_new_connection(dev, username, userdata); if (!privptr->conn) { IUCV_DBF_TEXT(setup, 2, "NULL from netiucv_new_connection\n"); goto out_fsm; @@ -1914,6 +2040,7 @@ static struct net_device *netiucv_init_netdevice(char *username) out_fsm: kfree_fsm(privptr->fsm); out_netdev: + rtnl_unlock(); free_netdev(dev); return NULL; } @@ -1921,47 +2048,31 @@ out_netdev: static ssize_t conn_write(struct device_driver *drv, const char *buf, size_t count) { - const char *p; char username[9]; - int i, rc; + char userdata[17]; + int rc; struct net_device *dev; struct netiucv_priv *priv; struct iucv_connection *cp; IUCV_DBF_TEXT(trace, 3, __func__); - if (count>9) { - IUCV_DBF_TEXT(setup, 2, "conn_write: too long\n"); - return -EINVAL; - } - - for (i = 0, p = buf; i < 8 && *p; i++, p++) { - if (isalnum(*p) || *p == '$') { - username[i] = toupper(*p); - continue; - } - if (*p == '\n') - /* trailing lf, grr */ - break; - IUCV_DBF_TEXT_(setup, 2, - "conn_write: invalid character %c\n", *p); - return -EINVAL; - } - while (i < 8) - username[i++] = ' '; - username[8] = '\0'; + rc = netiucv_check_user(buf, count, username, userdata); + if (rc) + return rc; read_lock_bh(&iucv_connection_rwlock); list_for_each_entry(cp, &iucv_connection_list, list) { - if (!strncmp(username, cp->userid, 9)) { + if (!strncmp(username, cp->userid, 9) && + !strncmp(userdata, cp->userdata, 17)) { read_unlock_bh(&iucv_connection_rwlock); - IUCV_DBF_TEXT_(setup, 2, "conn_write: Connection " - "to %s already exists\n", username); + IUCV_DBF_TEXT_(setup, 2, "conn_write: Connection to %s " + "already exists\n", netiucv_printuser(cp)); return -EEXIST; } } read_unlock_bh(&iucv_connection_rwlock); - dev = netiucv_init_netdevice(username); + dev = netiucv_init_netdevice(username, userdata); if (!dev) { IUCV_DBF_TEXT(setup, 2, "NULL from netiucv_init_netdevice\n"); return -ENODEV; @@ -1969,6 +2080,7 @@ static ssize_t conn_write(struct device_driver *drv, rc = netiucv_register_device(dev); if (rc) { + rtnl_unlock(); IUCV_DBF_TEXT_(setup, 2, "ret %d from netiucv_register_device\n", rc); goto out_free_ndev; @@ -1978,10 +2090,14 @@ static ssize_t conn_write(struct device_driver *drv, priv = netdev_priv(dev); SET_NETDEV_DEV(dev, priv->dev); - rc = register_netdev(dev); + rc = register_netdevice(dev); + rtnl_unlock(); if (rc) goto out_unreg; + dev_info(priv->dev, "The IUCV interface to %s has been established " + "successfully\n", + netiucv_printuser(priv->conn)); return count; @@ -2008,7 +2124,7 @@ static ssize_t remove_write (struct device_driver *drv, IUCV_DBF_TEXT(trace, 3, __func__); if (count >= IFNAMSIZ) - count = IFNAMSIZ - 1;; + count = IFNAMSIZ - 1; for (i = 0, p = buf; i < count && *p; i++, p++) { if (*p == '\n' || *p == ' ') @@ -2027,10 +2143,9 @@ static ssize_t remove_write (struct device_driver *drv, continue; read_unlock_bh(&iucv_connection_rwlock); if (ndev->flags & (IFF_UP | IFF_RUNNING)) { - PRINT_WARN("netiucv: net device %s active with peer " - "%s\n", ndev->name, priv->conn->userid); - PRINT_WARN("netiucv: %s cannot be removed\n", - ndev->name); + dev_warn(dev, "The IUCV device is connected" + " to %s and cannot be removed\n", + priv->conn->userid); IUCV_DBF_TEXT(data, 2, "remove_write: still active\n"); return -EPERM; } @@ -2055,14 +2170,14 @@ static struct attribute_group netiucv_drv_attr_group = { .attrs = netiucv_drv_attrs, }; -static struct attribute_group *netiucv_drv_attr_groups[] = { +static const struct attribute_group *netiucv_drv_attr_groups[] = { &netiucv_drv_attr_group, NULL, }; static void netiucv_banner(void) { - PRINT_INFO("NETIUCV driver initialized\n"); + pr_info("driver initialized\n"); } static void __exit netiucv_exit(void) @@ -2084,11 +2199,12 @@ static void __exit netiucv_exit(void) netiucv_unregister_device(dev); } + device_unregister(netiucv_dev); driver_unregister(&netiucv_driver); iucv_unregister(&netiucv_handler, 1); iucv_unregister_dbf_views(); - PRINT_INFO("NETIUCV driver unloaded\n"); + pr_info("driver unloaded\n"); return; } @@ -2109,10 +2225,27 @@ static int __init netiucv_init(void) IUCV_DBF_TEXT_(setup, 2, "ret %d from driver_register\n", rc); goto out_iucv; } - + /* establish dummy device */ + netiucv_dev = kzalloc(sizeof(struct device), GFP_KERNEL); + if (!netiucv_dev) { + rc = -ENOMEM; + goto out_driver; + } + dev_set_name(netiucv_dev, "netiucv"); + netiucv_dev->bus = &iucv_bus; + netiucv_dev->parent = iucv_root; + netiucv_dev->release = (void (*)(struct device *))kfree; + netiucv_dev->driver = &netiucv_driver; + rc = device_register(netiucv_dev); + if (rc) { + put_device(netiucv_dev); + goto out_driver; + } netiucv_banner(); return rc; +out_driver: + driver_unregister(&netiucv_driver); out_iucv: iucv_unregister(&netiucv_handler, 1); out_dbf: diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index bf8a75c92f2..a2088af51cc 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -1,6 +1,4 @@ /* - * drivers/s390/net/qeth_core.h - * * Copyright IBM Corp. 2007 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, * Frank Pavlic <fpavlic@de.ibm.com>, @@ -13,8 +11,6 @@ #include <linux/if.h> #include <linux/if_arp.h> -#include <linux/if_tr.h> -#include <linux/trdevice.h> #include <linux/etherdevice.h> #include <linux/if_vlan.h> #include <linux/ctype.h> @@ -31,21 +27,16 @@ #include <asm/qdio.h> #include <asm/ccwdev.h> #include <asm/ccwgroup.h> +#include <asm/sysinfo.h> #include "qeth_core_mpc.h" -#define KMSG_COMPONENT "qeth" - /** * Debug Facility stuff */ enum qeth_dbf_names { QETH_DBF_SETUP, - QETH_DBF_QERR, - QETH_DBF_TRACE, QETH_DBF_MSG, - QETH_DBF_SENSE, - QETH_DBF_MISC, QETH_DBF_CTRL, QETH_DBF_INFOS /* must be last element */ }; @@ -72,12 +63,19 @@ struct qeth_dbf_info { debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text) #define QETH_DBF_TEXT_(name, level, text...) \ - qeth_dbf_longtext(QETH_DBF_##name, level, text) + qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text) -/** - * some more debug stuff - */ -#define PRINTK_HEADER "qeth: " +#define QETH_CARD_TEXT(card, level, text) \ + debug_text_event(card->debug, level, text) + +#define QETH_CARD_HEX(card, level, addr, len) \ + debug_event(card->debug, level, (void *)(addr), len) + +#define QETH_CARD_MESSAGE(card, text...) \ + debug_sprintf_event(card->debug, level, text) + +#define QETH_CARD_TEXT_(card, level, text...) \ + qeth_dbf_longtext(card->debug, level, text) #define SENSE_COMMAND_REJECT_BYTE 0 #define SENSE_COMMAND_REJECT_FLAG 0x80 @@ -90,11 +88,11 @@ struct qeth_dbf_info { #define CARD_RDEV(card) card->read.ccwdev #define CARD_WDEV(card) card->write.ccwdev #define CARD_DDEV(card) card->data.ccwdev -#define CARD_BUS_ID(card) card->gdev->dev.bus_id -#define CARD_RDEV_ID(card) card->read.ccwdev->dev.bus_id -#define CARD_WDEV_ID(card) card->write.ccwdev->dev.bus_id -#define CARD_DDEV_ID(card) card->data.ccwdev->dev.bus_id -#define CHANNEL_ID(channel) channel->ccwdev->dev.bus_id +#define CARD_BUS_ID(card) dev_name(&card->gdev->dev) +#define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev) +#define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev) +#define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev) +#define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev) /** * card stuff @@ -108,6 +106,10 @@ struct qeth_perf_stats { unsigned int sc_dp_p; unsigned int sc_p_dp; + /* qdio_cq_handler: number of times called, time spent in */ + __u64 cq_start_time; + unsigned int cq_cnt; + unsigned int cq_time; /* qdio_input_handler: number of times called, time spent in */ __u64 inbound_start_time; unsigned int inbound_cnt; @@ -128,7 +130,6 @@ struct qeth_perf_stats { __u64 outbound_do_qdio_start_time; unsigned int outbound_do_qdio_cnt; unsigned int outbound_do_qdio_time; - /* eddp data */ unsigned int large_send_bytes; unsigned int large_send_cnt; unsigned int sg_skbs_sent; @@ -140,6 +141,8 @@ struct qeth_perf_stats { unsigned int sg_skbs_rx; unsigned int sg_frags_rx; unsigned int sg_alloc_page_rx; + unsigned int tx_csum; + unsigned int tx_lin; }; /* Routing stuff */ @@ -153,6 +156,27 @@ struct qeth_ipa_info { __u32 enabled_funcs; }; +/* SETBRIDGEPORT stuff */ +enum qeth_sbp_roles { + QETH_SBP_ROLE_NONE = 0, + QETH_SBP_ROLE_PRIMARY = 1, + QETH_SBP_ROLE_SECONDARY = 2, +}; + +enum qeth_sbp_states { + QETH_SBP_STATE_INACTIVE = 0, + QETH_SBP_STATE_STANDBY = 1, + QETH_SBP_STATE_ACTIVE = 2, +}; + +#define QETH_SBP_HOST_NOTIFICATION 1 + +struct qeth_sbp_info { + __u32 supported_funcs; + enum qeth_sbp_roles role; + __u32 hostnotification:1; +}; + static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa, enum qeth_ipa_funcs func) { @@ -184,25 +208,22 @@ static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, ((prot == QETH_PROT_IPV6) ? \ qeth_is_enabled6(c, f) : qeth_is_enabled(c, f)) -#define QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT 0x0101 -#define QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT 0x0101 -#define QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT 0x4108 -#define QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT 0x5108 +#define QETH_IDX_FUNC_LEVEL_OSD 0x0101 +#define QETH_IDX_FUNC_LEVEL_IQD 0x4108 #define QETH_MODELLIST_ARRAY \ - {{0x1731, 0x01, 0x1732, 0x01, QETH_CARD_TYPE_OSAE, 1, \ - QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \ - QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \ - QETH_MAX_QUEUES, 0}, \ - {0x1731, 0x05, 0x1732, 0x05, QETH_CARD_TYPE_IQD, 0, \ - QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT, \ - QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT, \ - QETH_MAX_QUEUES, 0x103}, \ - {0x1731, 0x06, 0x1732, 0x06, QETH_CARD_TYPE_OSN, 0, \ - QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \ - QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \ - QETH_MAX_QUEUES, 0}, \ - {0, 0, 0, 0, 0, 0, 0, 0, 0} } + {{0x1731, 0x01, 0x1732, QETH_CARD_TYPE_OSD, QETH_MAX_QUEUES, 0}, \ + {0x1731, 0x05, 0x1732, QETH_CARD_TYPE_IQD, QETH_MAX_QUEUES, 0x103}, \ + {0x1731, 0x06, 0x1732, QETH_CARD_TYPE_OSN, QETH_MAX_QUEUES, 0}, \ + {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSM, QETH_MAX_QUEUES, 0}, \ + {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSX, QETH_MAX_QUEUES, 0}, \ + {0, 0, 0, 0, 0, 0} } +#define QETH_CU_TYPE_IND 0 +#define QETH_CU_MODEL_IND 1 +#define QETH_DEV_TYPE_IND 2 +#define QETH_DEV_MODEL_IND 3 +#define QETH_QUEUE_NO_IND 4 +#define QETH_MULTICAST_IND 5 #define QETH_REAL_CARD 1 #define QETH_VLAN_CARD 2 @@ -213,6 +234,7 @@ static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, */ #define QETH_TX_TIMEOUT 100 * HZ #define QETH_RCD_TIMEOUT 60 * HZ +#define QETH_RECLAIM_WORK_TIME HZ #define QETH_HEADER_SIZE 32 #define QETH_MAX_PORTNO 15 @@ -225,12 +247,13 @@ static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, /*****************************************************************************/ #define QETH_MAX_QUEUES 4 #define QETH_IN_BUF_SIZE_DEFAULT 65536 -#define QETH_IN_BUF_COUNT_DEFAULT 16 +#define QETH_IN_BUF_COUNT_DEFAULT 64 +#define QETH_IN_BUF_COUNT_HSDEFAULT 128 #define QETH_IN_BUF_COUNT_MIN 8 #define QETH_IN_BUF_COUNT_MAX 128 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12) #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \ - ((card)->qdio.in_buf_pool.buf_count / 2) + ((card)->qdio.in_buf_pool.buf_count / 2) /* buffers we have to be behind before we get a PCI */ #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1) @@ -245,10 +268,8 @@ static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, #define QETH_NO_PRIO_QUEUEING 0 #define QETH_PRIO_Q_ING_PREC 1 #define QETH_PRIO_Q_ING_TOS 2 -#define IP_TOS_LOWDELAY 0x10 -#define IP_TOS_HIGHTHROUGHPUT 0x08 -#define IP_TOS_HIGHRELIABILITY 0x04 -#define IP_TOS_NOTIMPORTANT 0x02 +#define QETH_PRIO_Q_ING_SKB 3 +#define QETH_PRIO_Q_ING_VLAN 4 /* Packing */ #define QETH_LOW_WATERMARK_PACK 2 @@ -259,6 +280,7 @@ static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, /* large receive scatter gather copy break */ #define QETH_RX_SG_CB (PAGE_SIZE >> 1) +#define QETH_RX_PULL_LEN 256 struct qeth_hdr_layer3 { __u8 id; @@ -356,11 +378,11 @@ enum qeth_header_ids { #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20 -#define QETH_HDR_EXT_UDP_TSO 0x40 /*bit off for TCP*/ +#define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/ static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale) { - return (sbale->flags & SBAL_FLAGS_LAST_ENTRY); + return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY); } enum qeth_qdio_buffer_states { @@ -374,6 +396,21 @@ enum qeth_qdio_buffer_states { * outbound: filled by driver; owned by hardware in order to be sent */ QETH_QDIO_BUF_PRIMED, + /* + * inbound: not applicable + * outbound: identified to be pending in TPQ + */ + QETH_QDIO_BUF_PENDING, + /* + * inbound: not applicable + * outbound: found in completion queue + */ + QETH_QDIO_BUF_IN_CQ, + /* + * inbound: not applicable + * outbound: handled via transfer pending / completion queue + */ + QETH_QDIO_BUF_HANDLED_DELAYED, }; enum qeth_qdio_info_states { @@ -398,6 +435,7 @@ struct qeth_qdio_buffer { struct qdio_buffer *buffer; /* the buffer pool entry currently associated to this buffer */ struct qeth_buffer_pool_entry *pool_entry; + struct sk_buff *rx_skb; }; struct qeth_qdio_q { @@ -406,20 +444,16 @@ struct qeth_qdio_q { int next_buf_to_init; } __attribute__ ((aligned(256))); -/* possible types of qeth large_send support */ -enum qeth_large_send_types { - QETH_LARGE_SEND_NO, - QETH_LARGE_SEND_EDDP, - QETH_LARGE_SEND_TSO, -}; - struct qeth_qdio_out_buffer { struct qdio_buffer *buffer; atomic_t state; int next_element_to_fill; struct sk_buff_head skb_list; - struct list_head ctx_list; int is_header[16]; + + struct qaob *aob; + struct qeth_qdio_out_q *q; + struct qeth_qdio_out_buffer *next_pending; }; struct qeth_card; @@ -432,7 +466,8 @@ enum qeth_out_q_states { struct qeth_qdio_out_q { struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; - struct qeth_qdio_out_buffer bufs[QDIO_MAX_BUFFERS_PER_Q]; + struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q]; + struct qdio_outbuf_state *bufstates; /* convenience pointer */ int queue_no; struct qeth_card *card; atomic_t state; @@ -453,7 +488,9 @@ struct qeth_qdio_out_q { struct qeth_qdio_info { atomic_t state; /* input */ + int no_in_queues; struct qeth_qdio_q *in_q; + struct qeth_qdio_q *c_q; struct qeth_qdio_buffer_pool in_buf_pool; struct qeth_qdio_buffer_pool init_pool; int in_buf_size; @@ -461,6 +498,7 @@ struct qeth_qdio_info { /* output */ int no_out_queues; struct qeth_qdio_out_q **out_qs; + struct qdio_outbuf_state *out_bufstates; /* priority queueing */ int do_prio_queueing; @@ -532,6 +570,12 @@ enum qeth_cmd_buffer_state { BUF_STATE_PROCESSED, }; +enum qeth_cq { + QETH_CQ_DISABLED = 0, + QETH_CQ_ENABLED = 1, + QETH_CQ_NOTAVAILABLE = 2, +}; + struct qeth_ipato { int enabled; int invert4; @@ -635,7 +679,10 @@ struct qeth_card_info { int unique_id; struct qeth_card_blkt blkt; __u32 csum_mask; + __u32 tx_csum_mask; enum qeth_ipa_promisc_modes promisc_mode; + __u32 diagass_support; + __u32 hwtrap; }; struct qeth_card_options { @@ -644,16 +691,17 @@ struct qeth_card_options { struct qeth_ipa_info adp; /*Adapter parameters*/ struct qeth_routing_info route6; struct qeth_ipa_info ipa6; - enum qeth_checksum_types checksum_type; - int broadcast_mode; - int macaddr_mode; + struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */ int fake_broadcast; int add_hhlen; - int fake_ll; int layer2; - enum qeth_large_send_types large_send; int performance_stats; int rx_sg_cb; + enum qeth_ipa_isolation_modes isolation; + enum qeth_ipa_isolation_modes prev_isolation; + int sniffer; + enum qeth_cq cq; + char hsuid[9]; }; /* @@ -674,10 +722,22 @@ enum qeth_discipline_id { }; struct qeth_discipline { + void (*start_poll)(struct ccw_device *, int, unsigned long); qdio_handler_t *input_handler; qdio_handler_t *output_handler; int (*recover)(void *ptr); - struct ccwgroup_driver *ccwgdriver; + int (*setup) (struct ccwgroup_device *); + void (*remove) (struct ccwgroup_device *); + int (*set_online) (struct ccwgroup_device *); + int (*set_offline) (struct ccwgroup_device *); + void (*shutdown)(struct ccwgroup_device *); + int (*prepare) (struct ccwgroup_device *); + void (*complete) (struct ccwgroup_device *); + int (*freeze)(struct ccwgroup_device *); + int (*thaw) (struct ccwgroup_device *); + int (*restore)(struct ccwgroup_device *); + int (*control_event_handler)(struct qeth_card *card, + struct qeth_ipa_cmd *cmd); }; struct qeth_vlan_vid { @@ -692,6 +752,22 @@ struct qeth_mc_mac { int is_vmac; }; +struct qeth_rx { + int b_count; + int b_index; + struct qdio_buffer_element *b_element; + int e_offset; + int qdio_err; +}; + +struct carrier_info { + __u8 card_type; + __u16 port_mode; + __u32 port_speed; +}; + +#define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT + struct qeth_card { struct list_head list; enum qeth_card_states state; @@ -713,7 +789,7 @@ struct qeth_card { wait_queue_head_t wait_q; spinlock_t vlanlock; spinlock_t mclock; - struct vlan_group *vlangrp; + unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; struct list_head vid_list; struct list_head mc_list; struct work_struct kernel_thread_starter; @@ -721,6 +797,7 @@ struct qeth_card { unsigned long thread_start_mask; unsigned long thread_allowed_mask; unsigned long thread_running_mask; + struct task_struct *recovery_task; spinlock_t ip_lock; struct list_head ip_list; struct list_head *ip_tbd_list; @@ -729,10 +806,20 @@ struct qeth_card { /* QDIO buffer handling */ struct qeth_qdio_info qdio; struct qeth_perf_stats perf_stats; - int use_hard_stop; + int read_or_write_problem; struct qeth_osn_info osn_info; - struct qeth_discipline discipline; + struct qeth_discipline *discipline; atomic_t force_alloc_skb; + struct service_level qeth_service_level; + struct qdio_ssqd_desc ssqd; + debug_info_t *debug; + struct mutex conf_mutex; + struct mutex discipline_mutex; + struct napi_struct napi; + struct qeth_rx rx; + struct delayed_work buffer_reclaim_work; + int reclaim_index; + struct work_struct close_dev_work; }; struct qeth_card_list_struct { @@ -740,6 +827,14 @@ struct qeth_card_list_struct { rwlock_t rwlock; }; +struct qeth_trap_id { + __u16 lparnr; + char vmname[8]; + __u8 chpid; + __u8 ssid; + __u16 devno; +} __packed; + /*some helper functions*/ #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "") @@ -752,12 +847,16 @@ static inline struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev) static inline int qeth_get_micros(void) { - return (int) (get_clock() >> 12); + return (int) (get_tod_clock() >> 12); } static inline int qeth_get_ip_version(struct sk_buff *skb) { - switch (skb->protocol) { + __be16 *p = &((struct ethhdr *)skb->data)->h_proto; + + if (*p == ETH_P_8021Q) + p += 2; + switch (*p) { case ETH_P_IPV6: return 6; case ETH_P_IP: @@ -773,23 +872,31 @@ static inline void qeth_put_buffer_pool_entry(struct qeth_card *card, list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list); } -struct qeth_eddp_context; -extern struct ccwgroup_driver qeth_l2_ccwgroup_driver; -extern struct ccwgroup_driver qeth_l3_ccwgroup_driver; +static inline int qeth_is_diagass_supported(struct qeth_card *card, + enum qeth_diags_cmds cmd) +{ + return card->info.diagass_support & (__u32)cmd; +} + +extern struct qeth_discipline qeth_l2_discipline; +extern struct qeth_discipline qeth_l3_discipline; +extern const struct attribute_group *qeth_generic_attr_groups[]; +extern const struct attribute_group *qeth_osn_attr_groups[]; +extern struct workqueue_struct *qeth_wq; + const char *qeth_get_cardname_short(struct qeth_card *); int qeth_realloc_buffer_pool(struct qeth_card *, int); int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id); void qeth_core_free_discipline(struct qeth_card *); -int qeth_core_create_device_attributes(struct device *); -void qeth_core_remove_device_attributes(struct device *); -int qeth_core_create_osn_attributes(struct device *); -void qeth_core_remove_osn_attributes(struct device *); +void qeth_buffer_reclaim_work(struct work_struct *); /* exports for qeth discipline device drivers */ extern struct qeth_card_list_struct qeth_core_card_list; extern struct kmem_cache *qeth_core_header_cache; extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS]; +void qeth_set_recovery_task(struct qeth_card *); +void qeth_clear_recovery_task(struct qeth_card *); void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int); int qeth_threads_running(struct qeth_card *, unsigned long); int qeth_wait_for_threads(struct qeth_card *, unsigned long); @@ -808,12 +915,17 @@ int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds, enum qeth_prot_versions); int qeth_query_setadapterparms(struct qeth_card *); -int qeth_check_qdio_errors(struct qdio_buffer *, unsigned int, const char *); +int qeth_check_qdio_errors(struct qeth_card *, struct qdio_buffer *, + unsigned int, const char *); void qeth_queue_input_buffer(struct qeth_card *, int); struct sk_buff *qeth_core_get_next_skb(struct qeth_card *, - struct qdio_buffer *, struct qdio_buffer_element **, int *, + struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *, struct qeth_hdr **); void qeth_schedule_recovery(struct qeth_card *); +void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long); +void qeth_qdio_input_handler(struct ccw_device *, + unsigned int, unsigned int, int, + int, unsigned long); void qeth_qdio_output_handler(struct ccw_device *, unsigned int, int, int, int, unsigned long); void qeth_clear_ipacmd_list(struct qeth_card *); @@ -833,29 +945,37 @@ void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char); struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *); int qeth_mdio_read(struct net_device *, int, int); int qeth_snmp_command(struct qeth_card *, char __user *); -int qeth_set_large_send(struct qeth_card *, enum qeth_large_send_types); -struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *, __u32, __u32); -int qeth_default_setadapterparms_cb(struct qeth_card *, struct qeth_reply *, - unsigned long); +int qeth_query_oat_command(struct qeth_card *, char __user *); +int qeth_query_card_info(struct qeth_card *card, + struct carrier_info *carrier_info); int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *, int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long), void *reply_param); -int qeth_get_cast_type(struct qeth_card *, struct sk_buff *); +int qeth_bridgeport_query_ports(struct qeth_card *card, + enum qeth_sbp_roles *role, enum qeth_sbp_states *state); +int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role); +int qeth_bridgeport_an_set(struct qeth_card *card, int enable); int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int); -int qeth_get_elements_no(struct qeth_card *, void *, struct sk_buff *, int); +int qeth_get_elements_no(struct qeth_card *, struct sk_buff *, int); +int qeth_get_elements_for_frags(struct sk_buff *); int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *, - struct sk_buff *, struct qeth_hdr *, int, - struct qeth_eddp_context *, int, int); + struct sk_buff *, struct qeth_hdr *, int, int, int); int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *, - struct sk_buff *, struct qeth_hdr *, - int, struct qeth_eddp_context *); -int qeth_core_get_stats_count(struct net_device *); + struct sk_buff *, struct qeth_hdr *, int); +int qeth_core_get_sset_count(struct net_device *, int); void qeth_core_get_ethtool_stats(struct net_device *, struct ethtool_stats *, u64 *); void qeth_core_get_strings(struct net_device *, u32, u8 *); void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *); -void qeth_dbf_longtext(enum qeth_dbf_names dbf_nix, int level, char *text, ...); +void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...); int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *); +int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback); +int qeth_hdr_chk_and_bounce(struct sk_buff *, struct qeth_hdr **, int); +int qeth_configure_cq(struct qeth_card *, enum qeth_cq); +int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action); +int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot); +void qeth_trace_features(struct qeth_card *); +void qeth_close_dev(struct qeth_card *); /* exports for OSN */ int qeth_osn_assist(struct net_device *, void *, int); diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index c7ab1b86451..f54bec54d67 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -1,46 +1,42 @@ /* - * drivers/s390/net/qeth_core_main.c - * - * Copyright IBM Corp. 2007 + * Copyright IBM Corp. 2007, 2009 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, * Frank Pavlic <fpavlic@de.ibm.com>, * Thomas Spatzier <tspat@de.ibm.com>, * Frank Blaschka <frank.blaschka@de.ibm.com> */ +#define KMSG_COMPONENT "qeth" +#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/string.h> #include <linux/errno.h> #include <linux/kernel.h> #include <linux/ip.h> -#include <linux/ipv6.h> #include <linux/tcp.h> #include <linux/mii.h> #include <linux/kthread.h> +#include <linux/slab.h> +#include <net/iucv/af_iucv.h> +#include <net/dsfield.h> #include <asm/ebcdic.h> +#include <asm/chpid.h> #include <asm/io.h> -#include <asm/s390_rdev.h> +#include <asm/sysinfo.h> +#include <asm/compat.h> #include "qeth_core.h" -#include "qeth_core_offl.h" struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = { /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */ /* N P A M L V H */ [QETH_DBF_SETUP] = {"qeth_setup", 8, 1, 8, 5, &debug_hex_ascii_view, NULL}, - [QETH_DBF_QERR] = {"qeth_qerr", - 2, 1, 8, 2, &debug_hex_ascii_view, NULL}, - [QETH_DBF_TRACE] = {"qeth_trace", - 4, 1, 8, 3, &debug_hex_ascii_view, NULL}, - [QETH_DBF_MSG] = {"qeth_msg", - 8, 1, 128, 3, &debug_sprintf_view, NULL}, - [QETH_DBF_SENSE] = {"qeth_sense", - 2, 1, 64, 2, &debug_hex_ascii_view, NULL}, - [QETH_DBF_MISC] = {"qeth_misc", - 2, 1, 256, 2, &debug_hex_ascii_view, NULL}, + [QETH_DBF_MSG] = {"qeth_msg", 8, 1, 11 * sizeof(long), 3, + &debug_sprintf_view, NULL}, [QETH_DBF_CTRL] = {"qeth_control", 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL}, }; @@ -50,10 +46,12 @@ struct qeth_card_list_struct qeth_core_card_list; EXPORT_SYMBOL_GPL(qeth_core_card_list); struct kmem_cache *qeth_core_header_cache; EXPORT_SYMBOL_GPL(qeth_core_header_cache); +static struct kmem_cache *qeth_qdio_outbuf_cache; static struct device *qeth_core_root_dev; -static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY; +static unsigned int known_devices[][6] = QETH_MODELLIST_ARRAY; static struct lock_class_key qdio_out_skb_queue_key; +static struct mutex qeth_mod_mutex; static void qeth_send_control_data_cb(struct qeth_channel *, struct qeth_cmd_buffer *); @@ -62,69 +60,65 @@ static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *); static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32); static void qeth_free_buffer_pool(struct qeth_card *); static int qeth_qdio_establish(struct qeth_card *); +static void qeth_free_qdio_buffers(struct qeth_card *); +static void qeth_notify_skbs(struct qeth_qdio_out_q *queue, + struct qeth_qdio_out_buffer *buf, + enum iucv_tx_notify notification); +static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf); +static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, + struct qeth_qdio_out_buffer *buf, + enum qeth_qdio_buffer_states newbufstate); +static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *, int); +struct workqueue_struct *qeth_wq; +EXPORT_SYMBOL_GPL(qeth_wq); -static inline void __qeth_fill_buffer_frag(struct sk_buff *skb, - struct qdio_buffer *buffer, int is_tso, - int *next_element_to_fill) +static void qeth_close_dev_handler(struct work_struct *work) { - struct skb_frag_struct *frag; - int fragno; - unsigned long addr; - int element, cnt, dlen; + struct qeth_card *card; - fragno = skb_shinfo(skb)->nr_frags; - element = *next_element_to_fill; - dlen = 0; + card = container_of(work, struct qeth_card, close_dev_work); + QETH_CARD_TEXT(card, 2, "cldevhdl"); + rtnl_lock(); + dev_close(card->dev); + rtnl_unlock(); + ccwgroup_set_offline(card->gdev); +} - if (is_tso) - buffer->element[element].flags = - SBAL_FLAGS_MIDDLE_FRAG; - else - buffer->element[element].flags = - SBAL_FLAGS_FIRST_FRAG; - dlen = skb->len - skb->data_len; - if (dlen) { - buffer->element[element].addr = skb->data; - buffer->element[element].length = dlen; - element++; - } - for (cnt = 0; cnt < fragno; cnt++) { - frag = &skb_shinfo(skb)->frags[cnt]; - addr = (page_to_pfn(frag->page) << PAGE_SHIFT) + - frag->page_offset; - buffer->element[element].addr = (char *)addr; - buffer->element[element].length = frag->size; - if (cnt < (fragno - 1)) - buffer->element[element].flags = - SBAL_FLAGS_MIDDLE_FRAG; - else - buffer->element[element].flags = - SBAL_FLAGS_LAST_FRAG; - element++; - } - *next_element_to_fill = element; +void qeth_close_dev(struct qeth_card *card) +{ + QETH_CARD_TEXT(card, 2, "cldevsubm"); + queue_work(qeth_wq, &card->close_dev_work); } +EXPORT_SYMBOL_GPL(qeth_close_dev); static inline const char *qeth_get_cardname(struct qeth_card *card) { if (card->info.guestlan) { switch (card->info.type) { - case QETH_CARD_TYPE_OSAE: - return " Guest LAN QDIO"; + case QETH_CARD_TYPE_OSD: + return " Virtual NIC QDIO"; case QETH_CARD_TYPE_IQD: - return " Guest LAN Hiper"; + return " Virtual NIC Hiper"; + case QETH_CARD_TYPE_OSM: + return " Virtual NIC QDIO - OSM"; + case QETH_CARD_TYPE_OSX: + return " Virtual NIC QDIO - OSX"; default: return " unknown"; } } else { switch (card->info.type) { - case QETH_CARD_TYPE_OSAE: + case QETH_CARD_TYPE_OSD: return " OSD Express"; case QETH_CARD_TYPE_IQD: return " HiperSockets"; case QETH_CARD_TYPE_OSN: return " OSN QDIO"; + case QETH_CARD_TYPE_OSM: + return " OSM QDIO"; + case QETH_CARD_TYPE_OSX: + return " OSX QDIO"; default: return " unknown"; } @@ -137,16 +131,20 @@ const char *qeth_get_cardname_short(struct qeth_card *card) { if (card->info.guestlan) { switch (card->info.type) { - case QETH_CARD_TYPE_OSAE: - return "GuestLAN QDIO"; + case QETH_CARD_TYPE_OSD: + return "Virt.NIC QDIO"; case QETH_CARD_TYPE_IQD: - return "GuestLAN Hiper"; + return "Virt.NIC Hiper"; + case QETH_CARD_TYPE_OSM: + return "Virt.NIC OSM"; + case QETH_CARD_TYPE_OSX: + return "Virt.NIC OSX"; default: return "unknown"; } } else { switch (card->info.type) { - case QETH_CARD_TYPE_OSAE: + case QETH_CARD_TYPE_OSD: switch (card->info.link_type) { case QETH_LINK_TYPE_FAST_ETH: return "OSD_100"; @@ -171,6 +169,10 @@ const char *qeth_get_cardname_short(struct qeth_card *card) return "HiperSockets"; case QETH_CARD_TYPE_OSN: return "OSN"; + case QETH_CARD_TYPE_OSM: + return "OSM_1000"; + case QETH_CARD_TYPE_OSX: + return "OSX_10GIG"; default: return "unknown"; } @@ -178,6 +180,23 @@ const char *qeth_get_cardname_short(struct qeth_card *card) return "n/a"; } +void qeth_set_recovery_task(struct qeth_card *card) +{ + card->recovery_task = current; +} +EXPORT_SYMBOL_GPL(qeth_set_recovery_task); + +void qeth_clear_recovery_task(struct qeth_card *card) +{ + card->recovery_task = NULL; +} +EXPORT_SYMBOL_GPL(qeth_clear_recovery_task); + +static bool qeth_is_recovery_task(const struct qeth_card *card) +{ + return card->recovery_task == current; +} + void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads, int clear_start_mask) { @@ -206,6 +225,8 @@ EXPORT_SYMBOL_GPL(qeth_threads_running); int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads) { + if (qeth_is_recovery_task(card)) + return 0; return wait_event_interruptible(card->wait_q, qeth_threads_running(card, threads) == 0); } @@ -215,7 +236,7 @@ void qeth_clear_working_pool_list(struct qeth_card *card) { struct qeth_buffer_pool_entry *pool_entry, *tmp; - QETH_DBF_TEXT(TRACE, 5, "clwrklst"); + QETH_CARD_TEXT(card, 5, "clwrklst"); list_for_each_entry_safe(pool_entry, tmp, &card->qdio.in_buf_pool.entry_list, list){ list_del(&pool_entry->list); @@ -229,9 +250,9 @@ static int qeth_alloc_buffer_pool(struct qeth_card *card) void *ptr; int i, j; - QETH_DBF_TEXT(TRACE, 5, "alocpool"); + QETH_CARD_TEXT(card, 5, "alocpool"); for (i = 0; i < card->qdio.init_pool.buf_count; ++i) { - pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL); + pool_entry = kzalloc(sizeof(*pool_entry), GFP_KERNEL); if (!pool_entry) { qeth_free_buffer_pool(card); return -ENOMEM; @@ -256,7 +277,7 @@ static int qeth_alloc_buffer_pool(struct qeth_card *card) int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt) { - QETH_DBF_TEXT(TRACE, 2, "realcbp"); + QETH_CARD_TEXT(card, 2, "realcbp"); if ((card->state != CARD_STATE_DOWN) && (card->state != CARD_STATE_RECOVER)) @@ -269,66 +290,232 @@ int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt) card->qdio.init_pool.buf_count = bufcnt; return qeth_alloc_buffer_pool(card); } +EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool); -int qeth_set_large_send(struct qeth_card *card, - enum qeth_large_send_types type) +static inline int qeth_cq_init(struct qeth_card *card) { - int rc = 0; + int rc; - if (card->dev == NULL) { - card->options.large_send = type; - return 0; + if (card->options.cq == QETH_CQ_ENABLED) { + QETH_DBF_TEXT(SETUP, 2, "cqinit"); + memset(card->qdio.c_q->qdio_bufs, 0, + QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); + card->qdio.c_q->next_buf_to_init = 127; + rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, + card->qdio.no_in_queues - 1, 0, + 127); + if (rc) { + QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); + goto out; + } } - if (card->state == CARD_STATE_UP) - netif_tx_disable(card->dev); - card->options.large_send = type; - switch (card->options.large_send) { - case QETH_LARGE_SEND_EDDP: - card->dev->features |= NETIF_F_TSO | NETIF_F_SG | - NETIF_F_HW_CSUM; - break; - case QETH_LARGE_SEND_TSO: - if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) { - card->dev->features |= NETIF_F_TSO | NETIF_F_SG | - NETIF_F_HW_CSUM; - } else { - card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | - NETIF_F_HW_CSUM); - card->options.large_send = QETH_LARGE_SEND_NO; - rc = -EOPNOTSUPP; + rc = 0; +out: + return rc; +} + +static inline int qeth_alloc_cq(struct qeth_card *card) +{ + int rc; + + if (card->options.cq == QETH_CQ_ENABLED) { + int i; + struct qdio_outbuf_state *outbuf_states; + + QETH_DBF_TEXT(SETUP, 2, "cqon"); + card->qdio.c_q = kzalloc(sizeof(struct qeth_qdio_q), + GFP_KERNEL); + if (!card->qdio.c_q) { + rc = -1; + goto kmsg_out; + } + QETH_DBF_HEX(SETUP, 2, &card->qdio.c_q, sizeof(void *)); + + for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { + card->qdio.c_q->bufs[i].buffer = + &card->qdio.c_q->qdio_bufs[i]; + } + + card->qdio.no_in_queues = 2; + + card->qdio.out_bufstates = + kzalloc(card->qdio.no_out_queues * + QDIO_MAX_BUFFERS_PER_Q * + sizeof(struct qdio_outbuf_state), GFP_KERNEL); + outbuf_states = card->qdio.out_bufstates; + if (outbuf_states == NULL) { + rc = -1; + goto free_cq_out; + } + for (i = 0; i < card->qdio.no_out_queues; ++i) { + card->qdio.out_qs[i]->bufstates = outbuf_states; + outbuf_states += QDIO_MAX_BUFFERS_PER_Q; } + } else { + QETH_DBF_TEXT(SETUP, 2, "nocq"); + card->qdio.c_q = NULL; + card->qdio.no_in_queues = 1; + } + QETH_DBF_TEXT_(SETUP, 2, "iqc%d", card->qdio.no_in_queues); + rc = 0; +out: + return rc; +free_cq_out: + kfree(card->qdio.c_q); + card->qdio.c_q = NULL; +kmsg_out: + dev_err(&card->gdev->dev, "Failed to create completion queue\n"); + goto out; +} + +static inline void qeth_free_cq(struct qeth_card *card) +{ + if (card->qdio.c_q) { + --card->qdio.no_in_queues; + kfree(card->qdio.c_q); + card->qdio.c_q = NULL; + } + kfree(card->qdio.out_bufstates); + card->qdio.out_bufstates = NULL; +} + +static inline enum iucv_tx_notify qeth_compute_cq_notification(int sbalf15, + int delayed) { + enum iucv_tx_notify n; + + switch (sbalf15) { + case 0: + n = delayed ? TX_NOTIFY_DELAYED_OK : TX_NOTIFY_OK; break; - default: /* includes QETH_LARGE_SEND_NO */ - card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | - NETIF_F_HW_CSUM); + case 4: + case 16: + case 17: + case 18: + n = delayed ? TX_NOTIFY_DELAYED_UNREACHABLE : + TX_NOTIFY_UNREACHABLE; + break; + default: + n = delayed ? TX_NOTIFY_DELAYED_GENERALERROR : + TX_NOTIFY_GENERALERROR; break; } - if (card->state == CARD_STATE_UP) - netif_wake_queue(card->dev); - return rc; + + return n; } -EXPORT_SYMBOL_GPL(qeth_set_large_send); + +static inline void qeth_cleanup_handled_pending(struct qeth_qdio_out_q *q, + int bidx, int forced_cleanup) +{ + if (q->card->options.cq != QETH_CQ_ENABLED) + return; + + if (q->bufs[bidx]->next_pending != NULL) { + struct qeth_qdio_out_buffer *head = q->bufs[bidx]; + struct qeth_qdio_out_buffer *c = q->bufs[bidx]->next_pending; + + while (c) { + if (forced_cleanup || + atomic_read(&c->state) == + QETH_QDIO_BUF_HANDLED_DELAYED) { + struct qeth_qdio_out_buffer *f = c; + QETH_CARD_TEXT(f->q->card, 5, "fp"); + QETH_CARD_TEXT_(f->q->card, 5, "%lx", (long) f); + /* release here to avoid interleaving between + outbound tasklet and inbound tasklet + regarding notifications and lifecycle */ + qeth_release_skbs(c); + + c = f->next_pending; + WARN_ON_ONCE(head->next_pending != f); + head->next_pending = c; + kmem_cache_free(qeth_qdio_outbuf_cache, f); + } else { + head = c; + c = c->next_pending; + } + + } + } + if (forced_cleanup && (atomic_read(&(q->bufs[bidx]->state)) == + QETH_QDIO_BUF_HANDLED_DELAYED)) { + /* for recovery situations */ + q->bufs[bidx]->aob = q->bufstates[bidx].aob; + qeth_init_qdio_out_buf(q, bidx); + QETH_CARD_TEXT(q->card, 2, "clprecov"); + } +} + + +static inline void qeth_qdio_handle_aob(struct qeth_card *card, + unsigned long phys_aob_addr) { + struct qaob *aob; + struct qeth_qdio_out_buffer *buffer; + enum iucv_tx_notify notification; + + aob = (struct qaob *) phys_to_virt(phys_aob_addr); + QETH_CARD_TEXT(card, 5, "haob"); + QETH_CARD_TEXT_(card, 5, "%lx", phys_aob_addr); + buffer = (struct qeth_qdio_out_buffer *) aob->user1; + QETH_CARD_TEXT_(card, 5, "%lx", aob->user1); + + if (atomic_cmpxchg(&buffer->state, QETH_QDIO_BUF_PRIMED, + QETH_QDIO_BUF_IN_CQ) == QETH_QDIO_BUF_PRIMED) { + notification = TX_NOTIFY_OK; + } else { + WARN_ON_ONCE(atomic_read(&buffer->state) != + QETH_QDIO_BUF_PENDING); + atomic_set(&buffer->state, QETH_QDIO_BUF_IN_CQ); + notification = TX_NOTIFY_DELAYED_OK; + } + + if (aob->aorc != 0) { + QETH_CARD_TEXT_(card, 2, "aorc%02X", aob->aorc); + notification = qeth_compute_cq_notification(aob->aorc, 1); + } + qeth_notify_skbs(buffer->q, buffer, notification); + + buffer->aob = NULL; + qeth_clear_output_buffer(buffer->q, buffer, + QETH_QDIO_BUF_HANDLED_DELAYED); + + /* from here on: do not touch buffer anymore */ + qdio_release_aob(aob); +} + +static inline int qeth_is_cq(struct qeth_card *card, unsigned int queue) +{ + return card->options.cq == QETH_CQ_ENABLED && + card->qdio.c_q != NULL && + queue != 0 && + queue == card->qdio.no_in_queues - 1; +} + static int qeth_issue_next_read(struct qeth_card *card) { int rc; struct qeth_cmd_buffer *iob; - QETH_DBF_TEXT(TRACE, 5, "issnxrd"); + QETH_CARD_TEXT(card, 5, "issnxrd"); if (card->read.state != CH_STATE_UP) return -EIO; iob = qeth_get_buffer(&card->read); if (!iob) { - PRINT_WARN("issue_next_read failed: no iob available!\n"); + dev_warn(&card->gdev->dev, "The qeth device driver " + "failed to recover an error on the device\n"); + QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob " + "available\n", dev_name(&card->gdev->dev)); return -ENOMEM; } qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE); - QETH_DBF_TEXT(TRACE, 6, "noirqpnd"); + QETH_CARD_TEXT(card, 6, "noirqpnd"); rc = ccw_device_start(card->read.ccwdev, &card->read.ccw, (addr_t) iob, 0, 0); if (rc) { - PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc); + QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! " + "rc=%i\n", dev_name(&card->gdev->dev), rc); atomic_set(&card->read.irq_pending, 0); + card->read_or_write_problem = 1; qeth_schedule_recovery(card); wake_up(&card->wait_q); } @@ -344,7 +531,7 @@ static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card) atomic_set(&reply->refcnt, 1); atomic_set(&reply->received, 0); reply->card = card; - }; + } return reply; } @@ -368,12 +555,15 @@ static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc, int com = cmd->hdr.command; ipa_name = qeth_get_ipa_cmd_name(com); if (rc) - QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s returned x%X \"%s\"\n", - ipa_name, com, QETH_CARD_IFNAME(card), - rc, qeth_get_ipa_msg(rc)); + QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned " + "x%X \"%s\"\n", + ipa_name, com, dev_name(&card->gdev->dev), + QETH_CARD_IFNAME(card), rc, + qeth_get_ipa_msg(rc)); else - QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s succeeded\n", - ipa_name, com, QETH_CARD_IFNAME(card)); + QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n", + ipa_name, com, dev_name(&card->gdev->dev), + QETH_CARD_IFNAME(card)); } static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card, @@ -381,45 +571,67 @@ static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card, { struct qeth_ipa_cmd *cmd = NULL; - QETH_DBF_TEXT(TRACE, 5, "chkipad"); + QETH_CARD_TEXT(card, 5, "chkipad"); if (IS_IPA(iob->data)) { cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data); if (IS_IPA_REPLY(cmd)) { - if (cmd->hdr.command < IPA_CMD_SETCCID || - cmd->hdr.command > IPA_CMD_MODCCID) + if (cmd->hdr.command != IPA_CMD_SETCCID && + cmd->hdr.command != IPA_CMD_DELCCID && + cmd->hdr.command != IPA_CMD_MODCCID && + cmd->hdr.command != IPA_CMD_SET_DIAG_ASS) qeth_issue_ipa_msg(cmd, cmd->hdr.return_code, card); return cmd; } else { switch (cmd->hdr.command) { case IPA_CMD_STOPLAN: - PRINT_WARN("Link failure on %s (CHPID 0x%X) - " - "there is a network problem or " - "someone pulled the cable or " - "disabled the port.\n", + if (cmd->hdr.return_code == + IPA_RC_VEPA_TO_VEB_TRANSITION) { + dev_err(&card->gdev->dev, + "Interface %s is down because the " + "adjacent port is no longer in " + "reflective relay mode\n", + QETH_CARD_IFNAME(card)); + qeth_close_dev(card); + } else { + dev_warn(&card->gdev->dev, + "The link for interface %s on CHPID" + " 0x%X failed\n", QETH_CARD_IFNAME(card), card->info.chpid); + qeth_issue_ipa_msg(cmd, + cmd->hdr.return_code, card); + } card->lan_online = 0; if (card->dev && netif_carrier_ok(card->dev)) netif_carrier_off(card->dev); return NULL; case IPA_CMD_STARTLAN: - PRINT_INFO("Link reestablished on %s " - "(CHPID 0x%X). Scheduling " - "IP address reset.\n", + dev_info(&card->gdev->dev, + "The link for %s on CHPID 0x%X has" + " been restored\n", QETH_CARD_IFNAME(card), card->info.chpid); netif_carrier_on(card->dev); card->lan_online = 1; + if (card->info.hwtrap) + card->info.hwtrap = 2; qeth_schedule_recovery(card); return NULL; + case IPA_CMD_SETBRIDGEPORT: + case IPA_CMD_ADDRESS_CHANGE_NOTIF: + if (card->discipline->control_event_handler + (card, cmd)) + return cmd; + else + return NULL; case IPA_CMD_MODCCID: return cmd; case IPA_CMD_REGISTER_LOCAL_ADDR: - QETH_DBF_TEXT(TRACE, 3, "irla"); + QETH_CARD_TEXT(card, 3, "irla"); break; case IPA_CMD_UNREGISTER_LOCAL_ADDR: - QETH_DBF_TEXT(TRACE, 3, "urla"); + QETH_CARD_TEXT(card, 3, "urla"); break; default: QETH_DBF_MESSAGE(2, "Received data is IPA " @@ -436,7 +648,7 @@ void qeth_clear_ipacmd_list(struct qeth_card *card) struct qeth_reply *reply, *r; unsigned long flags; - QETH_DBF_TEXT(TRACE, 4, "clipalst"); + QETH_CARD_TEXT(card, 4, "clipalst"); spin_lock_irqsave(&card->lock, flags); list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { @@ -448,24 +660,32 @@ void qeth_clear_ipacmd_list(struct qeth_card *card) qeth_put_reply(reply); } spin_unlock_irqrestore(&card->lock, flags); + atomic_set(&card->write.irq_pending, 0); } EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list); -static int qeth_check_idx_response(unsigned char *buffer) +static int qeth_check_idx_response(struct qeth_card *card, + unsigned char *buffer) { if (!buffer) return 0; QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN); if ((buffer[2] & 0xc0) == 0xc0) { - PRINT_WARN("received an IDX TERMINATE " + QETH_DBF_MESSAGE(2, "received an IDX TERMINATE " "with cause code 0x%02x%s\n", buffer[4], ((buffer[4] == 0x22) ? " -- try another portname" : "")); - QETH_DBF_TEXT(TRACE, 2, "ckidxres"); - QETH_DBF_TEXT(TRACE, 2, " idxterm"); - QETH_DBF_TEXT_(TRACE, 2, " rc%d", -EIO); + QETH_CARD_TEXT(card, 2, "ckidxres"); + QETH_CARD_TEXT(card, 2, " idxterm"); + QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); + if (buffer[4] == 0xf6) { + dev_err(&card->gdev->dev, + "The qeth device is not configured " + "for the OSI layer required by z/VM\n"); + return -EPERM; + } return -EIO; } return 0; @@ -476,8 +696,8 @@ static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob, { struct qeth_card *card; - QETH_DBF_TEXT(TRACE, 4, "setupccw"); card = CARD_FROM_CDEV(channel->ccwdev); + QETH_CARD_TEXT(card, 4, "setupccw"); if (channel == &card->read) memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); else @@ -490,7 +710,7 @@ static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel) { __u8 index; - QETH_DBF_TEXT(TRACE, 6, "getbuff"); + QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "getbuff"); index = channel->io_buf_no; do { if (channel->iob[index].state == BUF_STATE_FREE) { @@ -511,13 +731,14 @@ void qeth_release_buffer(struct qeth_channel *channel, { unsigned long flags; - QETH_DBF_TEXT(TRACE, 6, "relbuff"); + QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "relbuff"); spin_lock_irqsave(&channel->iob_lock, flags); memset(iob->data, 0, QETH_BUFSIZE); iob->state = BUF_STATE_FREE; iob->callback = qeth_send_control_data_cb; iob->rc = 0; spin_unlock_irqrestore(&channel->iob_lock, flags); + wake_up(&channel->wait_q); } EXPORT_SYMBOL_GPL(qeth_release_buffer); @@ -560,13 +781,19 @@ static void qeth_send_control_data_cb(struct qeth_channel *channel, struct qeth_ipa_cmd *cmd; unsigned long flags; int keep_reply; - - QETH_DBF_TEXT(TRACE, 4, "sndctlcb"); + int rc = 0; card = CARD_FROM_CDEV(channel->ccwdev); - if (qeth_check_idx_response(iob->data)) { + QETH_CARD_TEXT(card, 4, "sndctlcb"); + rc = qeth_check_idx_response(card, iob->data); + switch (rc) { + case 0: + break; + case -EIO: qeth_clear_ipacmd_list(card); qeth_schedule_recovery(card); + /* fall through */ + default: goto out; } @@ -633,8 +860,8 @@ static int qeth_setup_channel(struct qeth_channel *channel) QETH_DBF_TEXT(SETUP, 2, "setupch"); for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) { - channel->iob[cnt].data = (char *) - kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL); + channel->iob[cnt].data = + kzalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL); if (channel->iob[cnt].data == NULL) break; channel->iob[cnt].state = BUF_STATE_FREE; @@ -725,7 +952,7 @@ EXPORT_SYMBOL_GPL(qeth_do_run_thread); void qeth_schedule_recovery(struct qeth_card *card) { - QETH_DBF_TEXT(TRACE, 2, "startrec"); + QETH_CARD_TEXT(card, 2, "startrec"); if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0) schedule_work(&card->kernel_thread_starter); } @@ -735,17 +962,21 @@ static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb) { int dstat, cstat; char *sense; + struct qeth_card *card; sense = (char *) irb->ecw; cstat = irb->scsw.cmd.cstat; dstat = irb->scsw.cmd.dstat; + card = CARD_FROM_CDEV(cdev); if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK | SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK | SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) { - QETH_DBF_TEXT(TRACE, 2, "CGENCHK"); - PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ", - cdev->dev.bus_id, dstat, cstat); + QETH_CARD_TEXT(card, 2, "CGENCHK"); + dev_warn(&cdev->dev, "The qeth device driver " + "failed to recover an error on the device\n"); + QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n", + dev_name(&cdev->dev), dstat, cstat); print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET, 16, 1, irb, 64, 1); return 1; @@ -754,23 +985,23 @@ static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb) if (dstat & DEV_STAT_UNIT_CHECK) { if (sense[SENSE_RESETTING_EVENT_BYTE] & SENSE_RESETTING_EVENT_FLAG) { - QETH_DBF_TEXT(TRACE, 2, "REVIND"); + QETH_CARD_TEXT(card, 2, "REVIND"); return 1; } if (sense[SENSE_COMMAND_REJECT_BYTE] & SENSE_COMMAND_REJECT_FLAG) { - QETH_DBF_TEXT(TRACE, 2, "CMDREJi"); - return 0; + QETH_CARD_TEXT(card, 2, "CMDREJi"); + return 1; } if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) { - QETH_DBF_TEXT(TRACE, 2, "AFFE"); + QETH_CARD_TEXT(card, 2, "AFFE"); return 1; } if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) { - QETH_DBF_TEXT(TRACE, 2, "ZEROSEN"); + QETH_CARD_TEXT(card, 2, "ZEROSEN"); return 0; } - QETH_DBF_TEXT(TRACE, 2, "DGENCHK"); + QETH_CARD_TEXT(card, 2, "DGENCHK"); return 1; } return 0; @@ -779,33 +1010,37 @@ static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb) static long __qeth_check_irb_error(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) { - if (!IS_ERR(irb)) + struct qeth_card *card; + + card = CARD_FROM_CDEV(cdev); + + if (!card || !IS_ERR(irb)) return 0; switch (PTR_ERR(irb)) { case -EIO: - PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id); - QETH_DBF_TEXT(TRACE, 2, "ckirberr"); - QETH_DBF_TEXT_(TRACE, 2, " rc%d", -EIO); + QETH_DBF_MESSAGE(2, "%s i/o-error on device\n", + dev_name(&cdev->dev)); + QETH_CARD_TEXT(card, 2, "ckirberr"); + QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); break; case -ETIMEDOUT: - PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id); - QETH_DBF_TEXT(TRACE, 2, "ckirberr"); - QETH_DBF_TEXT_(TRACE, 2, " rc%d", -ETIMEDOUT); + dev_warn(&cdev->dev, "A hardware operation timed out" + " on the device\n"); + QETH_CARD_TEXT(card, 2, "ckirberr"); + QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT); if (intparm == QETH_RCD_PARM) { - struct qeth_card *card = CARD_FROM_CDEV(cdev); - - if (card && (card->data.ccwdev == cdev)) { + if (card->data.ccwdev == cdev) { card->data.state = CH_STATE_DOWN; wake_up(&card->wait_q); } } break; default: - PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb), - cdev->dev.bus_id); - QETH_DBF_TEXT(TRACE, 2, "ckirberr"); - QETH_DBF_TEXT(TRACE, 2, " rc???"); + QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n", + dev_name(&cdev->dev), PTR_ERR(irb)); + QETH_CARD_TEXT(card, 2, "ckirberr"); + QETH_CARD_TEXT(card, 2, " rc???"); } return PTR_ERR(irb); } @@ -821,8 +1056,6 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct qeth_cmd_buffer *iob; __u8 index; - QETH_DBF_TEXT(TRACE, 5, "irq"); - if (__qeth_check_irb_error(cdev, intparm, irb)) return; cstat = irb->scsw.cmd.cstat; @@ -832,15 +1065,17 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, if (!card) return; + QETH_CARD_TEXT(card, 5, "irq"); + if (card->read.ccwdev == cdev) { channel = &card->read; - QETH_DBF_TEXT(TRACE, 5, "read"); + QETH_CARD_TEXT(card, 5, "read"); } else if (card->write.ccwdev == cdev) { channel = &card->write; - QETH_DBF_TEXT(TRACE, 5, "write"); + QETH_CARD_TEXT(card, 5, "write"); } else { channel = &card->data; - QETH_DBF_TEXT(TRACE, 5, "data"); + QETH_CARD_TEXT(card, 5, "data"); } atomic_set(&channel->irq_pending, 0); @@ -856,12 +1091,12 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, goto out; if (intparm == QETH_CLEAR_CHANNEL_PARM) { - QETH_DBF_TEXT(TRACE, 6, "clrchpar"); + QETH_CARD_TEXT(card, 6, "clrchpar"); /* we don't have to handle this further */ intparm = 0; } if (intparm == QETH_HALT_CHANNEL_PARM) { - QETH_DBF_TEXT(TRACE, 6, "hltchpar"); + QETH_CARD_TEXT(card, 6, "hltchpar"); /* we don't have to handle this further */ intparm = 0; } @@ -869,10 +1104,12 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, (dstat & DEV_STAT_UNIT_CHECK) || (cstat)) { if (irb->esw.esw0.erw.cons) { - /* TODO: we should make this s390dbf */ - PRINT_WARN("sense data available on channel %s.\n", - CHANNEL_ID(channel)); - PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat); + dev_warn(&channel->ccwdev->dev, + "The qeth device driver failed to recover " + "an error on the device\n"); + QETH_DBF_MESSAGE(2, "%s sense data available. cstat " + "0x%X dstat 0x%X\n", + dev_name(&channel->ccwdev->dev), cstat, dstat); print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1); print_hex_dump(KERN_WARNING, "qeth: sense data ", @@ -884,6 +1121,7 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, } rc = qeth_get_problem(cdev, irb); if (rc) { + qeth_clear_ipacmd_list(card); qeth_schedule_recovery(card); goto out; } @@ -917,23 +1155,74 @@ out: return; } -static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, - struct qeth_qdio_out_buffer *buf) +static void qeth_notify_skbs(struct qeth_qdio_out_q *q, + struct qeth_qdio_out_buffer *buf, + enum iucv_tx_notify notification) { - int i; struct sk_buff *skb; - /* is PCI flag set on buffer? */ - if (buf->buffer->element[0].flags & 0x40) - atomic_dec(&queue->set_pci_flags_count); + if (skb_queue_empty(&buf->skb_list)) + goto out; + skb = skb_peek(&buf->skb_list); + while (skb) { + QETH_CARD_TEXT_(q->card, 5, "skbn%d", notification); + QETH_CARD_TEXT_(q->card, 5, "%lx", (long) skb); + if (skb->protocol == ETH_P_AF_IUCV) { + if (skb->sk) { + struct iucv_sock *iucv = iucv_sk(skb->sk); + iucv->sk_txnotify(skb, notification); + } + } + if (skb_queue_is_last(&buf->skb_list, skb)) + skb = NULL; + else + skb = skb_queue_next(&buf->skb_list, skb); + } +out: + return; +} + +static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf) +{ + struct sk_buff *skb; + struct iucv_sock *iucv; + int notify_general_error = 0; + + if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING) + notify_general_error = 1; + + /* release may never happen from within CQ tasklet scope */ + WARN_ON_ONCE(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ); skb = skb_dequeue(&buf->skb_list); while (skb) { + QETH_CARD_TEXT(buf->q->card, 5, "skbr"); + QETH_CARD_TEXT_(buf->q->card, 5, "%lx", (long) skb); + if (notify_general_error && skb->protocol == ETH_P_AF_IUCV) { + if (skb->sk) { + iucv = iucv_sk(skb->sk); + iucv->sk_txnotify(skb, TX_NOTIFY_GENERALERROR); + } + } atomic_dec(&skb->users); dev_kfree_skb_any(skb); skb = skb_dequeue(&buf->skb_list); } - qeth_eddp_buf_release_contexts(buf); +} + +static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, + struct qeth_qdio_out_buffer *buf, + enum qeth_qdio_buffer_states newbufstate) +{ + int i; + + /* is PCI flag set on buffer? */ + if (buf->buffer->element[0].sflags & SBAL_SFLAGS0_PCI_REQ) + atomic_dec(&queue->set_pci_flags_count); + + if (newbufstate == QETH_QDIO_BUF_EMPTY) { + qeth_release_skbs(buf); + } for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) { if (buf->buffer->element[i].addr && buf->is_header[i]) kmem_cache_free(qeth_core_header_cache, @@ -941,24 +1230,42 @@ static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, buf->is_header[i] = 0; buf->buffer->element[i].length = 0; buf->buffer->element[i].addr = NULL; - buf->buffer->element[i].flags = 0; + buf->buffer->element[i].eflags = 0; + buf->buffer->element[i].sflags = 0; } + buf->buffer->element[15].eflags = 0; + buf->buffer->element[15].sflags = 0; buf->next_element_to_fill = 0; - atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY); + atomic_set(&buf->state, newbufstate); +} + +static void qeth_clear_outq_buffers(struct qeth_qdio_out_q *q, int free) +{ + int j; + + for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { + if (!q->bufs[j]) + continue; + qeth_cleanup_handled_pending(q, j, 1); + qeth_clear_output_buffer(q, q->bufs[j], QETH_QDIO_BUF_EMPTY); + if (free) { + kmem_cache_free(qeth_qdio_outbuf_cache, q->bufs[j]); + q->bufs[j] = NULL; + } + } } void qeth_clear_qdio_buffers(struct qeth_card *card) { - int i, j; + int i; - QETH_DBF_TEXT(TRACE, 2, "clearqdbf"); + QETH_CARD_TEXT(card, 2, "clearqdbf"); /* clear outbound buffers to free skbs */ - for (i = 0; i < card->qdio.no_out_queues; ++i) + for (i = 0; i < card->qdio.no_out_queues; ++i) { if (card->qdio.out_qs[i]) { - for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) - qeth_clear_output_buffer(card->qdio.out_qs[i], - &card->qdio.out_qs[i]->bufs[j]); + qeth_clear_outq_buffers(card->qdio.out_qs[i], 0); } + } } EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers); @@ -966,7 +1273,6 @@ static void qeth_free_buffer_pool(struct qeth_card *card) { struct qeth_buffer_pool_entry *pool_entry, *tmp; int i = 0; - QETH_DBF_TEXT(TRACE, 5, "freepool"); list_for_each_entry_safe(pool_entry, tmp, &card->qdio.init_pool.entry_list, init_list){ for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) @@ -980,10 +1286,16 @@ static void qeth_free_qdio_buffers(struct qeth_card *card) { int i, j; - QETH_DBF_TEXT(TRACE, 2, "freeqdbf"); if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == QETH_QDIO_UNINITIALIZED) return; + + qeth_free_cq(card); + cancel_delayed_work_sync(&card->buffer_reclaim_work); + for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { + if (card->qdio.in_q->bufs[j].rx_skb) + dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb); + } kfree(card->qdio.in_q); card->qdio.in_q = NULL; /* inbound buffer pool */ @@ -991,9 +1303,7 @@ static void qeth_free_qdio_buffers(struct qeth_card *card) /* free outbound qdio_qs */ if (card->qdio.out_qs) { for (i = 0; i < card->qdio.no_out_queues; ++i) { - for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) - qeth_clear_output_buffer(card->qdio.out_qs[i], - &card->qdio.out_qs[i]->bufs[j]); + qeth_clear_outq_buffers(card->qdio.out_qs[i], 1); kfree(card->qdio.out_qs[i]); } kfree(card->qdio.out_qs); @@ -1010,32 +1320,54 @@ static void qeth_clean_channel(struct qeth_channel *channel) kfree(channel->iob[cnt].data); } -static int qeth_is_1920_device(struct qeth_card *card) +static void qeth_set_single_write_queues(struct qeth_card *card) +{ + if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) && + (card->qdio.no_out_queues == 4)) + qeth_free_qdio_buffers(card); + + card->qdio.no_out_queues = 1; + if (card->qdio.default_out_queue != 0) + dev_info(&card->gdev->dev, "Priority Queueing not supported\n"); + + card->qdio.default_out_queue = 0; +} + +static void qeth_set_multiple_write_queues(struct qeth_card *card) +{ + if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) && + (card->qdio.no_out_queues == 1)) { + qeth_free_qdio_buffers(card); + card->qdio.default_out_queue = 2; + } + card->qdio.no_out_queues = 4; +} + +static void qeth_update_from_chp_desc(struct qeth_card *card) { - int single_queue = 0; struct ccw_device *ccwdev; - struct channelPath_dsc { - u8 flags; - u8 lsn; - u8 desc; - u8 chpid; - u8 swla; - u8 zeroes; - u8 chla; - u8 chpp; - } *chp_dsc; - - QETH_DBF_TEXT(SETUP, 2, "chk_1920"); + struct channel_path_desc *chp_dsc; + + QETH_DBF_TEXT(SETUP, 2, "chp_desc"); ccwdev = card->data.ccwdev; - chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0); - if (chp_dsc != NULL) { - /* CHPP field bit 6 == 1 -> single queue */ - single_queue = ((chp_dsc->chpp & 0x02) == 0x02); - kfree(chp_dsc); - } - QETH_DBF_TEXT_(SETUP, 2, "rc:%x", single_queue); - return single_queue; + chp_dsc = ccw_device_get_chp_desc(ccwdev, 0); + if (!chp_dsc) + goto out; + + card->info.func_level = 0x4100 + chp_dsc->desc; + if (card->info.type == QETH_CARD_TYPE_IQD) + goto out; + + /* CHPP field bit 6 == 1 -> single queue */ + if ((chp_dsc->chpp & 0x02) == 0x02) + qeth_set_single_write_queues(card); + else + qeth_set_multiple_write_queues(card); +out: + kfree(chp_dsc); + QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues); + QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level); } static void qeth_init_qdio_info(struct qeth_card *card) @@ -1044,7 +1376,10 @@ static void qeth_init_qdio_info(struct qeth_card *card) atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); /* inbound */ card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; - card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT; + if (card->info.type == QETH_CARD_TYPE_IQD) + card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT; + else + card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT; card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count; INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list); INIT_LIST_HEAD(&card->qdio.init_pool.entry_list); @@ -1054,14 +1389,12 @@ static void qeth_set_intial_options(struct qeth_card *card) { card->options.route4.type = NO_ROUTER; card->options.route6.type = NO_ROUTER; - card->options.checksum_type = QETH_CHECKSUM_DEFAULT; - card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS; - card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL; card->options.fake_broadcast = 0; card->options.add_hhlen = DEFAULT_ADD_HHLEN; - card->options.fake_ll = 0; card->options.performance_stats = 0; card->options.rx_sg_cb = QETH_RX_SG_CB; + card->options.isolation = ISOLATION_MODE_NONE; + card->options.cq = QETH_CQ_DISABLED; } static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread) @@ -1070,7 +1403,7 @@ static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread) int rc = 0; spin_lock_irqsave(&card->thread_mask_lock, flags); - QETH_DBF_TEXT_(TRACE, 4, " %02x%02x%02x", + QETH_CARD_TEXT_(card, 4, " %02x%02x%02x", (u8) card->thread_start_mask, (u8) card->thread_allowed_mask, (u8) card->thread_running_mask); @@ -1081,16 +1414,23 @@ static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread) static void qeth_start_kernel_thread(struct work_struct *work) { + struct task_struct *ts; struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter); - QETH_DBF_TEXT(TRACE , 2, "strthrd"); + QETH_CARD_TEXT(card , 2, "strthrd"); if (card->read.state != CH_STATE_UP && card->write.state != CH_STATE_UP) return; - if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) - kthread_run(card->discipline.recover, (void *) card, + if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) { + ts = kthread_run(card->discipline->recover, (void *)card, "qeth_recover"); + if (IS_ERR(ts)) { + qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); + qeth_clear_thread_running_bit(card, + QETH_RECOVER_THREAD); + } + } } static int qeth_setup_card(struct qeth_card *card) @@ -1104,28 +1444,24 @@ static int qeth_setup_card(struct qeth_card *card) card->data.state = CH_STATE_DOWN; card->state = CARD_STATE_DOWN; card->lan_online = 0; - card->use_hard_stop = 0; + card->read_or_write_problem = 0; card->dev = NULL; spin_lock_init(&card->vlanlock); spin_lock_init(&card->mclock); - card->vlangrp = NULL; spin_lock_init(&card->lock); spin_lock_init(&card->ip_lock); spin_lock_init(&card->thread_mask_lock); + mutex_init(&card->conf_mutex); + mutex_init(&card->discipline_mutex); card->thread_start_mask = 0; card->thread_allowed_mask = 0; card->thread_running_mask = 0; INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread); INIT_LIST_HEAD(&card->ip_list); - card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL); - if (!card->ip_tbd_list) { - QETH_DBF_TEXT(SETUP, 0, "iptbdnom"); - return -ENOMEM; - } INIT_LIST_HEAD(card->ip_tbd_list); INIT_LIST_HEAD(&card->cmd_waiter_list); init_waitqueue_head(&card->wait_q); - /* intial options */ + /* initial options */ qeth_set_intial_options(card); /* IP address takeover */ INIT_LIST_HEAD(&card->ipato.entries); @@ -1134,9 +1470,20 @@ static int qeth_setup_card(struct qeth_card *card) card->ipato.invert6 = 0; /* init QDIO stuff */ qeth_init_qdio_info(card); + INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work); + INIT_WORK(&card->close_dev_work, qeth_close_dev_handler); return 0; } +static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr) +{ + struct qeth_card *card = container_of(slr, struct qeth_card, + qeth_service_level); + if (card->info.mcl_level[0]) + seq_printf(m, "qeth: %s firmware level %s\n", + CARD_BUS_ID(card), card->info.mcl_level); +} + static struct qeth_card *qeth_alloc_card(void) { struct qeth_card *card; @@ -1144,19 +1491,30 @@ static struct qeth_card *qeth_alloc_card(void) QETH_DBF_TEXT(SETUP, 2, "alloccrd"); card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL); if (!card) - return NULL; + goto out; QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); - if (qeth_setup_channel(&card->read)) { - kfree(card); - return NULL; - } - if (qeth_setup_channel(&card->write)) { - qeth_clean_channel(&card->read); - kfree(card); - return NULL; + card->ip_tbd_list = kzalloc(sizeof(struct list_head), GFP_KERNEL); + if (!card->ip_tbd_list) { + QETH_DBF_TEXT(SETUP, 0, "iptbdnom"); + goto out_card; } + if (qeth_setup_channel(&card->read)) + goto out_ip; + if (qeth_setup_channel(&card->write)) + goto out_channel; card->options.layer2 = -1; + card->qeth_service_level.seq_print = qeth_core_sl_print; + register_service_level(&card->qeth_service_level); return card; + +out_channel: + qeth_clean_channel(&card->read); +out_ip: + kfree(card->ip_tbd_list); +out_card: + kfree(card); +out: + return NULL; } static int qeth_determine_card_type(struct qeth_card *card) @@ -1167,24 +1525,25 @@ static int qeth_determine_card_type(struct qeth_card *card) card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; - while (known_devices[i][4]) { - if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) && - (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) { - card->info.type = known_devices[i][4]; - card->qdio.no_out_queues = known_devices[i][8]; - card->info.is_multicast_different = known_devices[i][9]; - if (qeth_is_1920_device(card)) { - PRINT_INFO("Priority Queueing not able " - "due to hardware limitations!\n"); - card->qdio.no_out_queues = 1; - card->qdio.default_out_queue = 0; - } + while (known_devices[i][QETH_DEV_MODEL_IND]) { + if ((CARD_RDEV(card)->id.dev_type == + known_devices[i][QETH_DEV_TYPE_IND]) && + (CARD_RDEV(card)->id.dev_model == + known_devices[i][QETH_DEV_MODEL_IND])) { + card->info.type = known_devices[i][QETH_DEV_MODEL_IND]; + card->qdio.no_out_queues = + known_devices[i][QETH_QUEUE_NO_IND]; + card->qdio.no_in_queues = 1; + card->info.is_multicast_different = + known_devices[i][QETH_MULTICAST_IND]; + qeth_update_from_chp_desc(card); return 0; } i++; } card->info.type = QETH_CARD_TYPE_UNKNOWN; - PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card)); + dev_err(&card->gdev->dev, "The adapter hardware is of an " + "unknown type\n"); return -ENOENT; } @@ -1194,8 +1553,8 @@ static int qeth_clear_channel(struct qeth_channel *channel) struct qeth_card *card; int rc; - QETH_DBF_TEXT(TRACE, 3, "clearch"); card = CARD_FROM_CDEV(channel->ccwdev); + QETH_CARD_TEXT(card, 3, "clearch"); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM); spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); @@ -1218,8 +1577,8 @@ static int qeth_halt_channel(struct qeth_channel *channel) struct qeth_card *card; int rc; - QETH_DBF_TEXT(TRACE, 3, "haltch"); card = CARD_FROM_CDEV(channel->ccwdev); + QETH_CARD_TEXT(card, 3, "haltch"); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM); spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); @@ -1239,7 +1598,7 @@ static int qeth_halt_channels(struct qeth_card *card) { int rc1 = 0, rc2 = 0, rc3 = 0; - QETH_DBF_TEXT(TRACE, 3, "haltchs"); + QETH_CARD_TEXT(card, 3, "haltchs"); rc1 = qeth_halt_channel(&card->read); rc2 = qeth_halt_channel(&card->write); rc3 = qeth_halt_channel(&card->data); @@ -1254,7 +1613,7 @@ static int qeth_clear_channels(struct qeth_card *card) { int rc1 = 0, rc2 = 0, rc3 = 0; - QETH_DBF_TEXT(TRACE, 3, "clearchs"); + QETH_CARD_TEXT(card, 3, "clearchs"); rc1 = qeth_clear_channel(&card->read); rc2 = qeth_clear_channel(&card->write); rc3 = qeth_clear_channel(&card->data); @@ -1269,8 +1628,7 @@ static int qeth_clear_halt_card(struct qeth_card *card, int halt) { int rc = 0; - QETH_DBF_TEXT(TRACE, 3, "clhacrd"); - QETH_DBF_HEX(TRACE, 3, &card, sizeof(void *)); + QETH_CARD_TEXT(card, 3, "clhacrd"); if (halt) rc = qeth_halt_channels(card); @@ -1283,18 +1641,18 @@ int qeth_qdio_clear_card(struct qeth_card *card, int use_halt) { int rc = 0; - QETH_DBF_TEXT(TRACE, 3, "qdioclr"); + QETH_CARD_TEXT(card, 3, "qdioclr"); switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED, QETH_QDIO_CLEANING)) { case QETH_QDIO_ESTABLISHED: if (card->info.type == QETH_CARD_TYPE_IQD) - rc = qdio_cleanup(CARD_DDEV(card), + rc = qdio_shutdown(CARD_DDEV(card), QDIO_FLAG_CLEANUP_USING_HALT); else - rc = qdio_cleanup(CARD_DDEV(card), + rc = qdio_shutdown(CARD_DDEV(card), QDIO_FLAG_CLEANUP_USING_CLEAR); if (rc) - QETH_DBF_TEXT_(TRACE, 3, "1err%d", rc); + QETH_CARD_TEXT_(card, 3, "1err%d", rc); atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); break; case QETH_QDIO_CLEANING: @@ -1304,7 +1662,7 @@ int qeth_qdio_clear_card(struct qeth_card *card, int use_halt) } rc = qeth_clear_halt_card(card, use_halt); if (rc) - QETH_DBF_TEXT_(TRACE, 3, "2err%d", rc); + QETH_CARD_TEXT_(card, 3, "2err%d", rc); card->state = CARD_STATE_DOWN; return rc; } @@ -1358,26 +1716,30 @@ static int qeth_read_conf_data(struct qeth_card *card, void **buffer, return ret; } -static int qeth_get_unitaddr(struct qeth_card *card) +static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd) { - int length; - char *prcd; - int rc; - - QETH_DBF_TEXT(SETUP, 2, "getunit"); - rc = qeth_read_conf_data(card, (void **) &prcd, &length); - if (rc) { - PRINT_ERR("qeth_read_conf_data for device %s returned %i\n", - CARD_DDEV_ID(card), rc); - return rc; - } + QETH_DBF_TEXT(SETUP, 2, "cfgunit"); card->info.chpid = prcd[30]; card->info.unit_addr2 = prcd[31]; card->info.cula = prcd[63]; card->info.guestlan = ((prcd[0x10] == _ascebc['V']) && (prcd[0x11] == _ascebc['M'])); - kfree(prcd); - return 0; +} + +static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd) +{ + QETH_DBF_TEXT(SETUP, 2, "cfgblkt"); + + if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && + prcd[76] >= 0xF1 && prcd[76] <= 0xF4) { + card->info.blkt.time_total = 0; + card->info.blkt.inter_packet = 0; + card->info.blkt.inter_packet_jumbo = 0; + } else { + card->info.blkt.time_total = 250; + card->info.blkt.inter_packet = 5; + card->info.blkt.inter_packet_jumbo = 15; + } } static void qeth_init_tokens(struct qeth_card *card) @@ -1391,22 +1753,16 @@ static void qeth_init_tokens(struct qeth_card *card) static void qeth_init_func_level(struct qeth_card *card) { - if (card->ipato.enabled) { - if (card->info.type == QETH_CARD_TYPE_IQD) - card->info.func_level = - QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT; - else - card->info.func_level = - QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT; - } else { - if (card->info.type == QETH_CARD_TYPE_IQD) - /*FIXME:why do we have same values for dis and ena for - osae??? */ - card->info.func_level = - QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT; - else - card->info.func_level = - QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT; + switch (card->info.type) { + case QETH_CARD_TYPE_IQD: + card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD; + break; + case QETH_CARD_TYPE_OSD: + case QETH_CARD_TYPE_OSN: + card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD; + break; + default: + break; } } @@ -1518,7 +1874,10 @@ static int qeth_idx_activate_channel(struct qeth_channel *channel, if (rc == -ERESTARTSYS) return rc; if (channel->state != CH_STATE_ACTIVATING) { - PRINT_WARN("IDX activate timed out!\n"); + dev_warn(&channel->ccwdev->dev, "The qeth device driver" + " failed to recover an error on the device\n"); + QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n", + dev_name(&channel->ccwdev->dev)); QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME); qeth_clear_cmd_buffers(channel); return -ETIME; @@ -1550,21 +1909,22 @@ static void qeth_idx_write_cb(struct qeth_channel *channel, card = CARD_FROM_CDEV(channel->ccwdev); if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { - if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19) - PRINT_ERR("IDX_ACTIVATE on write channel device %s: " - "adapter exclusively used by another host\n", - CARD_WDEV_ID(card)); + if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL) + dev_err(&card->write.ccwdev->dev, + "The adapter is used exclusively by another " + "host\n"); else - PRINT_ERR("IDX_ACTIVATE on write channel device %s: " - "negative reply\n", CARD_WDEV_ID(card)); + QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:" + " negative reply\n", + dev_name(&card->write.ccwdev->dev)); goto out; } memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) { - PRINT_WARN("IDX_ACTIVATE on write channel device %s: " - "function level mismatch " - "(sent: 0x%x, received: 0x%x)\n", - CARD_WDEV_ID(card), card->info.func_level, temp); + QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: " + "function level mismatch (sent: 0x%x, received: " + "0x%x)\n", dev_name(&card->write.ccwdev->dev), + card->info.func_level, temp); goto out; } channel->state = CH_STATE_UP; @@ -1585,33 +1945,46 @@ static void qeth_idx_read_cb(struct qeth_channel *channel, } card = CARD_FROM_CDEV(channel->ccwdev); - if (qeth_check_idx_response(iob->data)) + if (qeth_check_idx_response(card, iob->data)) goto out; if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { - if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19) - PRINT_ERR("IDX_ACTIVATE on read channel device %s: " - "adapter exclusively used by another host\n", - CARD_RDEV_ID(card)); - else - PRINT_ERR("IDX_ACTIVATE on read channel device %s: " - "negative reply\n", CARD_RDEV_ID(card)); + switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) { + case QETH_IDX_ACT_ERR_EXCL: + dev_err(&card->write.ccwdev->dev, + "The adapter is used exclusively by another " + "host\n"); + break; + case QETH_IDX_ACT_ERR_AUTH: + case QETH_IDX_ACT_ERR_AUTH_USER: + dev_err(&card->read.ccwdev->dev, + "Setting the device online failed because of " + "insufficient authorization\n"); + break; + default: + QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:" + " negative reply\n", + dev_name(&card->read.ccwdev->dev)); + } + QETH_CARD_TEXT_(card, 2, "idxread%c", + QETH_IDX_ACT_CAUSE_CODE(iob->data)); goto out; } /** - * temporary fix for microcode bug - * to revert it,replace OR by AND - */ + * * temporary fix for microcode bug + * * to revert it,replace OR by AND + * */ if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) || - (card->info.type == QETH_CARD_TYPE_OSAE)) + (card->info.type == QETH_CARD_TYPE_OSD)) card->info.portname_required = 1; memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); if (temp != qeth_peer_func_level(card->info.func_level)) { - PRINT_WARN("IDX_ACTIVATE on read channel device %s: function " - "level mismatch (sent: 0x%x, received: 0x%x)\n", - CARD_RDEV_ID(card), card->info.func_level, temp); + QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function " + "level mismatch (sent: 0x%x, received: 0x%x)\n", + dev_name(&card->read.ccwdev->dev), + card->info.func_level, temp); goto out; } memcpy(&card->token.issuer_rm_r, @@ -1651,10 +2024,15 @@ int qeth_send_control_data(struct qeth_card *card, int len, int rc; unsigned long flags; struct qeth_reply *reply = NULL; - unsigned long timeout; + unsigned long timeout, event_timeout; + struct qeth_ipa_cmd *cmd; - QETH_DBF_TEXT(TRACE, 2, "sendctl"); + QETH_CARD_TEXT(card, 2, "sendctl"); + if (card->read_or_write_problem) { + qeth_release_buffer(iob->channel, iob); + return -EIO; + } reply = qeth_alloc_reply(card); if (!reply) { return -ENOMEM; @@ -1675,19 +2053,21 @@ int qeth_send_control_data(struct qeth_card *card, int len, qeth_prepare_control_data(card, len, iob); if (IS_IPA(iob->data)) - timeout = jiffies + QETH_IPA_TIMEOUT; + event_timeout = QETH_IPA_TIMEOUT; else - timeout = jiffies + QETH_TIMEOUT; + event_timeout = QETH_TIMEOUT; + timeout = jiffies + event_timeout; - QETH_DBF_TEXT(TRACE, 6, "noirqpnd"); + QETH_CARD_TEXT(card, 6, "noirqpnd"); spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, (addr_t) iob, 0, 0); spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); if (rc) { - PRINT_WARN("qeth_send_control_data: " - "ccw_device_start rc = %i\n", rc); - QETH_DBF_TEXT_(TRACE, 2, " err%d", rc); + QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: " + "ccw_device_start rc = %i\n", + dev_name(&card->write.ccwdev->dev), rc); + QETH_CARD_TEXT_(card, 2, " err%d", rc); spin_lock_irqsave(&card->lock, flags); list_del_init(&reply->list); qeth_put_reply(reply); @@ -1697,17 +2077,39 @@ int qeth_send_control_data(struct qeth_card *card, int len, wake_up(&card->wait_q); return rc; } - while (!atomic_read(&reply->received)) { - if (time_after(jiffies, timeout)) { - spin_lock_irqsave(&reply->card->lock, flags); - list_del_init(&reply->list); - spin_unlock_irqrestore(&reply->card->lock, flags); - reply->rc = -ETIME; - atomic_inc(&reply->received); - wake_up(&reply->wait_q); + + /* we have only one long running ipassist, since we can ensure + process context of this command we can sleep */ + cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); + if ((cmd->hdr.command == IPA_CMD_SETIP) && + (cmd->hdr.prot_version == QETH_PROT_IPV4)) { + if (!wait_event_timeout(reply->wait_q, + atomic_read(&reply->received), event_timeout)) + goto time_err; + } else { + while (!atomic_read(&reply->received)) { + if (time_after(jiffies, timeout)) + goto time_err; + cpu_relax(); } - cpu_relax(); - }; + } + + if (reply->rc == -EIO) + goto error; + rc = reply->rc; + qeth_put_reply(reply); + return rc; + +time_err: + reply->rc = -ETIME; + spin_lock_irqsave(&reply->card->lock, flags); + list_del_init(&reply->list); + spin_unlock_irqrestore(&reply->card->lock, flags); + atomic_inc(&reply->received); +error: + atomic_set(&card->write.irq_pending, 0); + qeth_release_buffer(iob->channel, iob); + card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO; rc = reply->rc; qeth_put_reply(reply); return rc; @@ -1792,44 +2194,22 @@ static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card) return 1500; case QETH_CARD_TYPE_IQD: return card->info.max_mtu; - case QETH_CARD_TYPE_OSAE: + case QETH_CARD_TYPE_OSD: switch (card->info.link_type) { case QETH_LINK_TYPE_HSTR: case QETH_LINK_TYPE_LANE_TR: return 2000; default: - return 1492; + return card->options.layer2 ? 1500 : 1492; } + case QETH_CARD_TYPE_OSM: + case QETH_CARD_TYPE_OSX: + return card->options.layer2 ? 1500 : 1492; default: return 1500; } } -static inline int qeth_get_max_mtu_for_card(int cardtype) -{ - switch (cardtype) { - - case QETH_CARD_TYPE_UNKNOWN: - case QETH_CARD_TYPE_OSAE: - case QETH_CARD_TYPE_OSN: - return 61440; - case QETH_CARD_TYPE_IQD: - return 57344; - default: - return 1500; - } -} - -static inline int qeth_get_mtu_out_of_mpc(int cardtype) -{ - switch (cardtype) { - case QETH_CARD_TYPE_IQD: - return 1; - default: - return 0; - } -} - static inline int qeth_get_mtu_outof_framesize(int framesize) { switch (framesize) { @@ -1849,11 +2229,12 @@ static inline int qeth_get_mtu_outof_framesize(int framesize) static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu) { switch (card->info.type) { - case QETH_CARD_TYPE_OSAE: - return ((mtu >= 576) && (mtu <= 61440)); + case QETH_CARD_TYPE_OSD: + case QETH_CARD_TYPE_OSM: + case QETH_CARD_TYPE_OSX: case QETH_CARD_TYPE_IQD: return ((mtu >= 576) && - (mtu <= card->info.max_mtu + 4096 - 32)); + (mtu <= card->info.max_mtu)); case QETH_CARD_TYPE_OSN: case QETH_CARD_TYPE_UNKNOWN: default: @@ -1876,7 +2257,7 @@ static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply, memcpy(&card->token.ulp_filter_r, QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data), QETH_MPC_TOKEN_LENGTH); - if (qeth_get_mtu_out_of_mpc(card->info.type)) { + if (card->info.type == QETH_CARD_TYPE_IQD) { memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2); mtu = qeth_get_mtu_outof_framesize(framesize); if (!mtu) { @@ -1884,12 +2265,22 @@ static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply, QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); return 0; } - card->info.max_mtu = mtu; + if (card->info.initial_mtu && (card->info.initial_mtu != mtu)) { + /* frame size has changed */ + if (card->dev && + ((card->dev->mtu == card->info.initial_mtu) || + (card->dev->mtu > mtu))) + card->dev->mtu = mtu; + qeth_free_qdio_buffers(card); + } card->info.initial_mtu = mtu; + card->info.max_mtu = mtu; card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE; } else { - card->info.initial_mtu = qeth_get_initial_mtu_for_card(card); - card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type); + card->info.max_mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU( + iob->data); + card->info.initial_mtu = min(card->info.max_mtu, + qeth_get_initial_mtu_for_card(card)); card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; } @@ -1900,6 +2291,7 @@ static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply, card->info.link_type = link_type; } else card->info.link_type = 0; + QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type); QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); return 0; } @@ -1950,6 +2342,13 @@ static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply, memcpy(&card->token.ulp_connection_r, QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), QETH_MPC_TOKEN_LENGTH); + if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), + 3)) { + QETH_DBF_TEXT(SETUP, 2, "olmlimit"); + dev_err(&card->gdev->dev, "A connection could not be " + "established because of an OLM limit\n"); + iob->rc = -EMLINK; + } QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); return 0; } @@ -1982,6 +2381,37 @@ static int qeth_ulp_setup(struct qeth_card *card) return rc; } +static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *q, int bidx) +{ + int rc; + struct qeth_qdio_out_buffer *newbuf; + + rc = 0; + newbuf = kmem_cache_zalloc(qeth_qdio_outbuf_cache, GFP_ATOMIC); + if (!newbuf) { + rc = -ENOMEM; + goto out; + } + newbuf->buffer = &q->qdio_bufs[bidx]; + skb_queue_head_init(&newbuf->skb_list); + lockdep_set_class(&newbuf->skb_list.lock, &qdio_out_skb_queue_key); + newbuf->q = q; + newbuf->aob = NULL; + newbuf->next_pending = q->bufs[bidx]; + atomic_set(&newbuf->state, QETH_QDIO_BUF_EMPTY); + q->bufs[bidx] = newbuf; + if (q->bufstates) { + q->bufstates[bidx].user = newbuf; + QETH_CARD_TEXT_(q->card, 2, "nbs%d", bidx); + QETH_CARD_TEXT_(q->card, 2, "%lx", (long) newbuf); + QETH_CARD_TEXT_(q->card, 2, "%lx", + (long) newbuf->next_pending); + } +out: + return rc; +} + + static int qeth_alloc_qdio_buffers(struct qeth_card *card) { int i, j; @@ -1992,52 +2422,63 @@ static int qeth_alloc_qdio_buffers(struct qeth_card *card) QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED) return 0; - card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), - GFP_KERNEL); + card->qdio.in_q = kzalloc(sizeof(struct qeth_qdio_q), + GFP_KERNEL); if (!card->qdio.in_q) goto out_nomem; QETH_DBF_TEXT(SETUP, 2, "inq"); QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *)); memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q)); /* give inbound qeth_qdio_buffers their qdio_buffers */ - for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) + for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { card->qdio.in_q->bufs[i].buffer = &card->qdio.in_q->qdio_bufs[i]; + card->qdio.in_q->bufs[i].rx_skb = NULL; + } /* inbound buffer pool */ if (qeth_alloc_buffer_pool(card)) goto out_freeinq; + /* outbound */ card->qdio.out_qs = - kmalloc(card->qdio.no_out_queues * + kzalloc(card->qdio.no_out_queues * sizeof(struct qeth_qdio_out_q *), GFP_KERNEL); if (!card->qdio.out_qs) goto out_freepool; for (i = 0; i < card->qdio.no_out_queues; ++i) { - card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q), + card->qdio.out_qs[i] = kzalloc(sizeof(struct qeth_qdio_out_q), GFP_KERNEL); if (!card->qdio.out_qs[i]) goto out_freeoutq; QETH_DBF_TEXT_(SETUP, 2, "outq %i", i); QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *)); - memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q)); card->qdio.out_qs[i]->queue_no = i; /* give outbound qeth_qdio_buffers their qdio_buffers */ for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { - card->qdio.out_qs[i]->bufs[j].buffer = - &card->qdio.out_qs[i]->qdio_bufs[j]; - skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j]. - skb_list); - lockdep_set_class( - &card->qdio.out_qs[i]->bufs[j].skb_list.lock, - &qdio_out_skb_queue_key); - INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list); + WARN_ON(card->qdio.out_qs[i]->bufs[j] != NULL); + if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j)) + goto out_freeoutqbufs; } } + + /* completion */ + if (qeth_alloc_cq(card)) + goto out_freeoutq; + return 0; +out_freeoutqbufs: + while (j > 0) { + --j; + kmem_cache_free(qeth_qdio_outbuf_cache, + card->qdio.out_qs[i]->bufs[j]); + card->qdio.out_qs[i]->bufs[j] = NULL; + } out_freeoutq: - while (i > 0) + while (i > 0) { kfree(card->qdio.out_qs[--i]); + qeth_clear_outq_buffers(card->qdio.out_qs[i], 1); + } kfree(card->qdio.out_qs); card->qdio.out_qs = NULL; out_freepool: @@ -2156,6 +2597,7 @@ static int qeth_mpc_initialize(struct qeth_card *card) return 0; out_qdio: qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); + qdio_free(CARD_DDEV(card)); return rc; } @@ -2169,11 +2611,8 @@ static void qeth_print_status_with_portname(struct qeth_card *card) dbf_text[i] = (char) _ebcasc[(__u8) dbf_text[i]]; dbf_text[8] = 0; - PRINT_INFO("Device %s/%s/%s is a%s card%s%s%s\n" + dev_info(&card->gdev->dev, "Device is a%s card%s%s%s\n" "with link type %s (portname: %s)\n", - CARD_RDEV_ID(card), - CARD_WDEV_ID(card), - CARD_DDEV_ID(card), qeth_get_cardname(card), (card->info.mcl_level[0]) ? " (level: " : "", (card->info.mcl_level[0]) ? card->info.mcl_level : "", @@ -2186,23 +2625,17 @@ static void qeth_print_status_with_portname(struct qeth_card *card) static void qeth_print_status_no_portname(struct qeth_card *card) { if (card->info.portname[0]) - PRINT_INFO("Device %s/%s/%s is a%s " + dev_info(&card->gdev->dev, "Device is a%s " "card%s%s%s\nwith link type %s " "(no portname needed by interface).\n", - CARD_RDEV_ID(card), - CARD_WDEV_ID(card), - CARD_DDEV_ID(card), qeth_get_cardname(card), (card->info.mcl_level[0]) ? " (level: " : "", (card->info.mcl_level[0]) ? card->info.mcl_level : "", (card->info.mcl_level[0]) ? ")" : "", qeth_get_cardname_short(card)); else - PRINT_INFO("Device %s/%s/%s is a%s " + dev_info(&card->gdev->dev, "Device is a%s " "card%s%s%s\nwith link type %s.\n", - CARD_RDEV_ID(card), - CARD_WDEV_ID(card), - CARD_DDEV_ID(card), qeth_get_cardname(card), (card->info.mcl_level[0]) ? " (level: " : "", (card->info.mcl_level[0]) ? card->info.mcl_level : "", @@ -2213,7 +2646,9 @@ static void qeth_print_status_no_portname(struct qeth_card *card) void qeth_print_status_message(struct qeth_card *card) { switch (card->info.type) { - case QETH_CARD_TYPE_OSAE: + case QETH_CARD_TYPE_OSD: + case QETH_CARD_TYPE_OSM: + case QETH_CARD_TYPE_OSX: /* VM will use a non-zero first character * to indicate a HiperSockets like reporting * of the level OSA sets the first character to zero @@ -2228,7 +2663,8 @@ void qeth_print_status_message(struct qeth_card *card) } /* fallthrough */ case QETH_CARD_TYPE_IQD: - if (card->info.guestlan) { + if ((card->info.guestlan) || + (card->info.mcl_level[0] & 0x80)) { card->info.mcl_level[0] = (char) _ebcasc[(__u8) card->info.mcl_level[0]]; card->info.mcl_level[1] = (char) _ebcasc[(__u8) @@ -2254,7 +2690,7 @@ static void qeth_initialize_working_pool_list(struct qeth_card *card) { struct qeth_buffer_pool_entry *entry; - QETH_DBF_TEXT(TRACE, 5, "inwrklst"); + QETH_CARD_TEXT(card, 5, "inwrklst"); list_for_each_entry(entry, &card->qdio.init_pool.entry_list, init_list) { @@ -2314,6 +2750,12 @@ static int qeth_init_input_buffer(struct qeth_card *card, struct qeth_buffer_pool_entry *pool_entry; int i; + if ((card->options.cq == QETH_CQ_ENABLED) && (!buf->rx_skb)) { + buf->rx_skb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN); + if (!buf->rx_skb) + return 1; + } + pool_entry = qeth_find_free_buffer_pool_entry(card); if (!pool_entry) return 1; @@ -2324,16 +2766,16 @@ static int qeth_init_input_buffer(struct qeth_card *card, * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off * buffers */ - BUG_ON(!pool_entry); buf->pool_entry = pool_entry; for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { buf->buffer->element[i].length = PAGE_SIZE; buf->buffer->element[i].addr = pool_entry->elements[i]; if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1) - buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY; + buf->buffer->element[i].eflags = SBAL_EFLAGS_LAST_ENTRY; else - buf->buffer->element[i].flags = 0; + buf->buffer->element[i].eflags = 0; + buf->buffer->element[i].sflags = 0; } return 0; } @@ -2360,13 +2802,21 @@ int qeth_init_qdio_queues(struct qeth_card *card) QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); return rc; } + + /* completion */ + rc = qeth_cq_init(card); + if (rc) { + return rc; + } + /* outbound queue */ for (i = 0; i < card->qdio.no_out_queues; ++i) { memset(card->qdio.out_qs[i]->qdio_bufs, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { qeth_clear_output_buffer(card->qdio.out_qs[i], - &card->qdio.out_qs[i]->bufs[j]); + card->qdio.out_qs[i]->bufs[j], + QETH_QDIO_BUF_EMPTY); } card->qdio.out_qs[i]->card = card; card->qdio.out_qs[i]->next_buf_to_fill = 0; @@ -2442,7 +2892,7 @@ int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, int rc; char prot_type; - QETH_DBF_TEXT(TRACE, 4, "sendipa"); + QETH_CARD_TEXT(card, 4, "sendipa"); if (card->options.layer2) if (card->info.type == QETH_CARD_TYPE_OSN) @@ -2454,55 +2904,33 @@ int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, qeth_prepare_ipa_cmd(card, iob, prot_type); rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob, reply_cb, reply_param); + if (rc == -ETIME) { + qeth_clear_ipacmd_list(card); + qeth_schedule_recovery(card); + } return rc; } EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd); -static int qeth_send_startstoplan(struct qeth_card *card, - enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot) -{ - int rc; - struct qeth_cmd_buffer *iob; - - iob = qeth_get_ipacmd_buffer(card, ipacmd, prot); - rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); - - return rc; -} - int qeth_send_startlan(struct qeth_card *card) { int rc; + struct qeth_cmd_buffer *iob; QETH_DBF_TEXT(SETUP, 2, "strtlan"); - rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, 0); + iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0); + rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); return rc; } EXPORT_SYMBOL_GPL(qeth_send_startlan); -int qeth_send_stoplan(struct qeth_card *card) -{ - int rc = 0; - - /* - * TODO: according to the IPA format document page 14, - * TCP/IP (we!) never issue a STOPLAN - * is this right ?!? - */ - QETH_DBF_TEXT(SETUP, 2, "stoplan"); - - rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, 0); - return rc; -} -EXPORT_SYMBOL_GPL(qeth_send_stoplan); - -int qeth_default_setadapterparms_cb(struct qeth_card *card, +static int qeth_default_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply, unsigned long data) { struct qeth_ipa_cmd *cmd; - QETH_DBF_TEXT(TRACE, 4, "defadpcb"); + QETH_CARD_TEXT(card, 4, "defadpcb"); cmd = (struct qeth_ipa_cmd *) data; if (cmd->hdr.return_code == 0) @@ -2510,25 +2938,26 @@ int qeth_default_setadapterparms_cb(struct qeth_card *card, cmd->data.setadapterparms.hdr.return_code; return 0; } -EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb); static int qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply, unsigned long data) { struct qeth_ipa_cmd *cmd; - QETH_DBF_TEXT(TRACE, 3, "quyadpcb"); + QETH_CARD_TEXT(card, 3, "quyadpcb"); cmd = (struct qeth_ipa_cmd *) data; - if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) + if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) { card->info.link_type = cmd->data.setadapterparms.data.query_cmds_supp.lan_type; + QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type); + } card->options.adp.supported_funcs = cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds; return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); } -struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card, +static struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen) { struct qeth_cmd_buffer *iob; @@ -2544,14 +2973,13 @@ struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card, return iob; } -EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd); int qeth_query_setadapterparms(struct qeth_card *card) { int rc; struct qeth_cmd_buffer *iob; - QETH_DBF_TEXT(TRACE, 3, "queryadp"); + QETH_CARD_TEXT(card, 3, "queryadp"); iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED, sizeof(struct qeth_ipacmd_setadpparms)); rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL); @@ -2559,26 +2987,185 @@ int qeth_query_setadapterparms(struct qeth_card *card) } EXPORT_SYMBOL_GPL(qeth_query_setadapterparms); -int qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error, - const char *dbftext) +static int qeth_query_ipassists_cb(struct qeth_card *card, + struct qeth_reply *reply, unsigned long data) +{ + struct qeth_ipa_cmd *cmd; + + QETH_DBF_TEXT(SETUP, 2, "qipasscb"); + + cmd = (struct qeth_ipa_cmd *) data; + + switch (cmd->hdr.return_code) { + case IPA_RC_NOTSUPP: + case IPA_RC_L2_UNSUPPORTED_CMD: + QETH_DBF_TEXT(SETUP, 2, "ipaunsup"); + card->options.ipa4.supported_funcs |= IPA_SETADAPTERPARMS; + card->options.ipa6.supported_funcs |= IPA_SETADAPTERPARMS; + return -0; + default: + if (cmd->hdr.return_code) { + QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Unhandled " + "rc=%d\n", + dev_name(&card->gdev->dev), + cmd->hdr.return_code); + return 0; + } + } + + if (cmd->hdr.prot_version == QETH_PROT_IPV4) { + card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported; + card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; + } else if (cmd->hdr.prot_version == QETH_PROT_IPV6) { + card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported; + card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; + } else + QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Flawed LIC detected" + "\n", dev_name(&card->gdev->dev)); + return 0; +} + +int qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot) +{ + int rc; + struct qeth_cmd_buffer *iob; + + QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot); + iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot); + rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL); + return rc; +} +EXPORT_SYMBOL_GPL(qeth_query_ipassists); + +static int qeth_query_setdiagass_cb(struct qeth_card *card, + struct qeth_reply *reply, unsigned long data) +{ + struct qeth_ipa_cmd *cmd; + __u16 rc; + + cmd = (struct qeth_ipa_cmd *)data; + rc = cmd->hdr.return_code; + if (rc) + QETH_CARD_TEXT_(card, 2, "diagq:%x", rc); + else + card->info.diagass_support = cmd->data.diagass.ext; + return 0; +} + +static int qeth_query_setdiagass(struct qeth_card *card) +{ + struct qeth_cmd_buffer *iob; + struct qeth_ipa_cmd *cmd; + + QETH_DBF_TEXT(SETUP, 2, "qdiagass"); + iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); + cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); + cmd->data.diagass.subcmd_len = 16; + cmd->data.diagass.subcmd = QETH_DIAGS_CMD_QUERY; + return qeth_send_ipa_cmd(card, iob, qeth_query_setdiagass_cb, NULL); +} + +static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid) +{ + unsigned long info = get_zeroed_page(GFP_KERNEL); + struct sysinfo_2_2_2 *info222 = (struct sysinfo_2_2_2 *)info; + struct sysinfo_3_2_2 *info322 = (struct sysinfo_3_2_2 *)info; + struct ccw_dev_id ccwid; + int level; + + tid->chpid = card->info.chpid; + ccw_device_get_id(CARD_RDEV(card), &ccwid); + tid->ssid = ccwid.ssid; + tid->devno = ccwid.devno; + if (!info) + return; + level = stsi(NULL, 0, 0, 0); + if ((level >= 2) && (stsi(info222, 2, 2, 2) == 0)) + tid->lparnr = info222->lpar_number; + if ((level >= 3) && (stsi(info322, 3, 2, 2) == 0)) { + EBCASC(info322->vm[0].name, sizeof(info322->vm[0].name)); + memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname)); + } + free_page(info); + return; +} + +static int qeth_hw_trap_cb(struct qeth_card *card, + struct qeth_reply *reply, unsigned long data) +{ + struct qeth_ipa_cmd *cmd; + __u16 rc; + + cmd = (struct qeth_ipa_cmd *)data; + rc = cmd->hdr.return_code; + if (rc) + QETH_CARD_TEXT_(card, 2, "trapc:%x", rc); + return 0; +} + +int qeth_hw_trap(struct qeth_card *card, enum qeth_diags_trap_action action) +{ + struct qeth_cmd_buffer *iob; + struct qeth_ipa_cmd *cmd; + + QETH_DBF_TEXT(SETUP, 2, "diagtrap"); + iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); + cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); + cmd->data.diagass.subcmd_len = 80; + cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRAP; + cmd->data.diagass.type = 1; + cmd->data.diagass.action = action; + switch (action) { + case QETH_DIAGS_TRAP_ARM: + cmd->data.diagass.options = 0x0003; + cmd->data.diagass.ext = 0x00010000 + + sizeof(struct qeth_trap_id); + qeth_get_trap_id(card, + (struct qeth_trap_id *)cmd->data.diagass.cdata); + break; + case QETH_DIAGS_TRAP_DISARM: + cmd->data.diagass.options = 0x0001; + break; + case QETH_DIAGS_TRAP_CAPTURE: + break; + } + return qeth_send_ipa_cmd(card, iob, qeth_hw_trap_cb, NULL); +} +EXPORT_SYMBOL_GPL(qeth_hw_trap); + +int qeth_check_qdio_errors(struct qeth_card *card, struct qdio_buffer *buf, + unsigned int qdio_error, const char *dbftext) { if (qdio_error) { - QETH_DBF_TEXT(TRACE, 2, dbftext); - QETH_DBF_TEXT(QERR, 2, dbftext); - QETH_DBF_TEXT_(QERR, 2, " F15=%02X", - buf->element[15].flags & 0xff); - QETH_DBF_TEXT_(QERR, 2, " F14=%02X", - buf->element[14].flags & 0xff); - QETH_DBF_TEXT_(QERR, 2, " qerr=%X", qdio_error); - return 1; + QETH_CARD_TEXT(card, 2, dbftext); + QETH_CARD_TEXT_(card, 2, " F15=%02X", + buf->element[15].sflags); + QETH_CARD_TEXT_(card, 2, " F14=%02X", + buf->element[14].sflags); + QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error); + if ((buf->element[15].sflags) == 0x12) { + card->stats.rx_dropped++; + return 0; + } else + return 1; } return 0; } EXPORT_SYMBOL_GPL(qeth_check_qdio_errors); +void qeth_buffer_reclaim_work(struct work_struct *work) +{ + struct qeth_card *card = container_of(work, struct qeth_card, + buffer_reclaim_work.work); + + QETH_CARD_TEXT_(card, 2, "brw:%x", card->reclaim_index); + qeth_queue_input_buffer(card, card->reclaim_index); +} + void qeth_queue_input_buffer(struct qeth_card *card, int index) { struct qeth_qdio_q *queue = card->qdio.in_q; + struct list_head *lh; int count; int i; int rc; @@ -2610,6 +3197,20 @@ void qeth_queue_input_buffer(struct qeth_card *card, int index) atomic_add_unless(&card->force_alloc_skb, -1, 0); } + if (!count) { + i = 0; + list_for_each(lh, &card->qdio.in_buf_pool.entry_list) + i++; + if (i == card->qdio.in_buf_pool.buf_count) { + QETH_CARD_TEXT(card, 2, "qsarbw"); + card->reclaim_index = index; + schedule_delayed_work( + &card->buffer_reclaim_work, + QETH_RECLAIM_WORK_TIME); + } + return; + } + /* * according to old code it should be avoided to requeue all * 128 buffers in order to benefit from PCI avoidance. @@ -2629,11 +3230,7 @@ void qeth_queue_input_buffer(struct qeth_card *card, int index) qeth_get_micros() - card->perf_stats.inbound_do_qdio_start_time; if (rc) { - PRINT_WARN("qeth_queue_input_buffer's do_QDIO " - "return %i (device %s).\n", - rc, CARD_DDEV_ID(card)); - QETH_DBF_TEXT(TRACE, 2, "qinberr"); - QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card)); + QETH_CARD_TEXT(card, 2, "qinberr"); } queue->next_buf_to_init = (queue->next_buf_to_init + count) % QDIO_MAX_BUFFERS_PER_Q; @@ -2644,41 +3241,28 @@ EXPORT_SYMBOL_GPL(qeth_queue_input_buffer); static int qeth_handle_send_error(struct qeth_card *card, struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err) { - int sbalf15 = buffer->buffer->element[15].flags & 0xff; - int cc = qdio_err & 3; + int sbalf15 = buffer->buffer->element[15].sflags; - QETH_DBF_TEXT(TRACE, 6, "hdsnderr"); - qeth_check_qdio_errors(buffer->buffer, qdio_err, "qouterr"); - switch (cc) { - case 0: - if (qdio_err) { - QETH_DBF_TEXT(TRACE, 1, "lnkfail"); - QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); - QETH_DBF_TEXT_(TRACE, 1, "%04x %02x", - (u16)qdio_err, (u8)sbalf15); - return QETH_SEND_ERROR_LINK_FAILURE; - } - return QETH_SEND_ERROR_NONE; - case 2: - if (qdio_err & QDIO_ERROR_SIGA_BUSY) { - QETH_DBF_TEXT(TRACE, 1, "SIGAcc2B"); - QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); - return QETH_SEND_ERROR_KICK_IT; + QETH_CARD_TEXT(card, 6, "hdsnderr"); + if (card->info.type == QETH_CARD_TYPE_IQD) { + if (sbalf15 == 0) { + qdio_err = 0; + } else { + qdio_err = 1; } - if ((sbalf15 >= 15) && (sbalf15 <= 31)) - return QETH_SEND_ERROR_RETRY; - return QETH_SEND_ERROR_LINK_FAILURE; - /* look at qdio_error and sbalf 15 */ - case 1: - QETH_DBF_TEXT(TRACE, 1, "SIGAcc1"); - QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); - return QETH_SEND_ERROR_LINK_FAILURE; - case 3: - default: - QETH_DBF_TEXT(TRACE, 1, "SIGAcc3"); - QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); - return QETH_SEND_ERROR_KICK_IT; } + qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr"); + + if (!qdio_err) + return QETH_SEND_ERROR_NONE; + + if ((sbalf15 >= 15) && (sbalf15 <= 31)) + return QETH_SEND_ERROR_RETRY; + + QETH_CARD_TEXT(card, 1, "lnkfail"); + QETH_CARD_TEXT_(card, 1, "%04x %02x", + (u16)qdio_err, (u8)sbalf15); + return QETH_SEND_ERROR_LINK_FAILURE; } /* @@ -2691,7 +3275,7 @@ static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue) if (atomic_read(&queue->used_buffers) >= QETH_HIGH_WATERMARK_PACK){ /* switch non-PACKING -> PACKING */ - QETH_DBF_TEXT(TRACE, 6, "np->pack"); + QETH_CARD_TEXT(queue->card, 6, "np->pack"); if (queue->card->options.performance_stats) queue->card->perf_stats.sc_dp_p++; queue->do_pack = 1; @@ -2714,17 +3298,17 @@ static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) if (atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) { /* switch PACKING -> non-PACKING */ - QETH_DBF_TEXT(TRACE, 6, "pack->np"); + QETH_CARD_TEXT(queue->card, 6, "pack->np"); if (queue->card->options.performance_stats) queue->card->perf_stats.sc_p_dp++; queue->do_pack = 0; /* flush packing buffers */ - buffer = &queue->bufs[queue->next_buf_to_fill]; + buffer = queue->bufs[queue->next_buf_to_fill]; if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) && (buffer->next_element_to_fill > 0)) { atomic_set(&buffer->state, - QETH_QDIO_BUF_PRIMED); + QETH_QDIO_BUF_PRIMED); flush_count++; queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % @@ -2735,6 +3319,7 @@ static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) return flush_count; } + /* * Called to flush a packing buffer if no more pci flags are on the queue. * Checks if there is a packing buffer and prepares it to be flushed. @@ -2744,7 +3329,7 @@ static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue) { struct qeth_qdio_out_buffer *buffer; - buffer = &queue->bufs[queue->next_buf_to_fill]; + buffer = queue->bufs[queue->next_buf_to_fill]; if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) && (buffer->next_element_to_fill > 0)) { /* it's a packing buffer */ @@ -2765,9 +3350,13 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, unsigned int qdio_flags; for (i = index; i < index + count; ++i) { - buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]; - buf->buffer->element[buf->next_element_to_fill - 1].flags |= - SBAL_FLAGS_LAST_ENTRY; + int bidx = i % QDIO_MAX_BUFFERS_PER_Q; + buf = queue->bufs[bidx]; + buf->buffer->element[buf->next_element_to_fill - 1].eflags |= + SBAL_EFLAGS_LAST_ENTRY; + + if (queue->bufstates) + queue->bufstates[bidx].user = buf; if (queue->card->info.type == QETH_CARD_TYPE_IQD) continue; @@ -2780,7 +3369,7 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, /* it's likely that we'll go to packing * mode soon */ atomic_inc(&queue->set_pci_flags_count); - buf->buffer->element[0].flags |= 0x40; + buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ; } } else { if (!atomic_read(&queue->set_pci_flags_count)) { @@ -2793,7 +3382,7 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, * further send was requested by the stack */ atomic_inc(&queue->set_pci_flags_count); - buf->buffer->element[0].flags |= 0x40; + buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ; } } } @@ -2813,17 +3402,23 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() - queue->card->perf_stats.outbound_do_qdio_start_time; + atomic_add(count, &queue->used_buffers); if (rc) { - QETH_DBF_TEXT(TRACE, 2, "flushbuf"); - QETH_DBF_TEXT_(TRACE, 2, " err%d", rc); - QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_DDEV_ID(queue->card)); queue->card->stats.tx_errors += count; + /* ignore temporary SIGA errors without busy condition */ + if (rc == -ENOBUFS) + return; + QETH_CARD_TEXT(queue->card, 2, "flushbuf"); + QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no); + QETH_CARD_TEXT_(queue->card, 2, " idx%d", index); + QETH_CARD_TEXT_(queue->card, 2, " c%d", count); + QETH_CARD_TEXT_(queue->card, 2, " err%d", rc); + /* this must not happen under normal circumstances. if it * happens something is really wrong -> recover */ qeth_schedule_recovery(queue->card); return; } - atomic_add(count, &queue->used_buffers); if (queue->card->options.performance_stats) queue->card->perf_stats.bufs_sent += count; } @@ -2868,6 +3463,133 @@ static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) } } +void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue, + unsigned long card_ptr) +{ + struct qeth_card *card = (struct qeth_card *)card_ptr; + + if (card->dev && (card->dev->flags & IFF_UP)) + napi_schedule(&card->napi); +} +EXPORT_SYMBOL_GPL(qeth_qdio_start_poll); + +int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq) +{ + int rc; + + if (card->options.cq == QETH_CQ_NOTAVAILABLE) { + rc = -1; + goto out; + } else { + if (card->options.cq == cq) { + rc = 0; + goto out; + } + + if (card->state != CARD_STATE_DOWN && + card->state != CARD_STATE_RECOVER) { + rc = -1; + goto out; + } + + qeth_free_qdio_buffers(card); + card->options.cq = cq; + rc = 0; + } +out: + return rc; + +} +EXPORT_SYMBOL_GPL(qeth_configure_cq); + + +static void qeth_qdio_cq_handler(struct qeth_card *card, + unsigned int qdio_err, + unsigned int queue, int first_element, int count) { + struct qeth_qdio_q *cq = card->qdio.c_q; + int i; + int rc; + + if (!qeth_is_cq(card, queue)) + goto out; + + QETH_CARD_TEXT_(card, 5, "qcqhe%d", first_element); + QETH_CARD_TEXT_(card, 5, "qcqhc%d", count); + QETH_CARD_TEXT_(card, 5, "qcqherr%d", qdio_err); + + if (qdio_err) { + netif_stop_queue(card->dev); + qeth_schedule_recovery(card); + goto out; + } + + if (card->options.performance_stats) { + card->perf_stats.cq_cnt++; + card->perf_stats.cq_start_time = qeth_get_micros(); + } + + for (i = first_element; i < first_element + count; ++i) { + int bidx = i % QDIO_MAX_BUFFERS_PER_Q; + struct qdio_buffer *buffer = &cq->qdio_bufs[bidx]; + int e; + + e = 0; + while (buffer->element[e].addr) { + unsigned long phys_aob_addr; + + phys_aob_addr = (unsigned long) buffer->element[e].addr; + qeth_qdio_handle_aob(card, phys_aob_addr); + buffer->element[e].addr = NULL; + buffer->element[e].eflags = 0; + buffer->element[e].sflags = 0; + buffer->element[e].length = 0; + + ++e; + } + + buffer->element[15].eflags = 0; + buffer->element[15].sflags = 0; + } + rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, queue, + card->qdio.c_q->next_buf_to_init, + count); + if (rc) { + dev_warn(&card->gdev->dev, + "QDIO reported an error, rc=%i\n", rc); + QETH_CARD_TEXT(card, 2, "qcqherr"); + } + card->qdio.c_q->next_buf_to_init = (card->qdio.c_q->next_buf_to_init + + count) % QDIO_MAX_BUFFERS_PER_Q; + + netif_wake_queue(card->dev); + + if (card->options.performance_stats) { + int delta_t = qeth_get_micros(); + delta_t -= card->perf_stats.cq_start_time; + card->perf_stats.cq_time += delta_t; + } +out: + return; +} + +void qeth_qdio_input_handler(struct ccw_device *ccwdev, unsigned int qdio_err, + unsigned int queue, int first_elem, int count, + unsigned long card_ptr) +{ + struct qeth_card *card = (struct qeth_card *)card_ptr; + + QETH_CARD_TEXT_(card, 2, "qihq%d", queue); + QETH_CARD_TEXT_(card, 2, "qiec%d", qdio_err); + + if (qeth_is_cq(card, queue)) + qeth_qdio_cq_handler(card, qdio_err, queue, first_elem, count); + else if (qdio_err) + qeth_schedule_recovery(card); + + +} +EXPORT_SYMBOL_GPL(qeth_qdio_input_handler); + void qeth_qdio_output_handler(struct ccw_device *ccwdev, unsigned int qdio_error, int __queue, int first_element, int count, unsigned long card_ptr) @@ -2877,10 +3599,9 @@ void qeth_qdio_output_handler(struct ccw_device *ccwdev, struct qeth_qdio_out_buffer *buffer; int i; - QETH_DBF_TEXT(TRACE, 6, "qdouhdl"); - if (qdio_error & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) { - QETH_DBF_TEXT(TRACE, 2, "achkcond"); - QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card)); + QETH_CARD_TEXT(card, 6, "qdouhdl"); + if (qdio_error & QDIO_ERROR_FATAL) { + QETH_CARD_TEXT(card, 2, "achkcond"); netif_stop_queue(card->dev); qeth_schedule_recovery(card); return; @@ -2891,15 +3612,44 @@ void qeth_qdio_output_handler(struct ccw_device *ccwdev, qeth_get_micros(); } for (i = first_element; i < (first_element + count); ++i) { - buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]; - /*we only handle the KICK_IT error by doing a recovery */ - if (qeth_handle_send_error(card, buffer, qdio_error) - == QETH_SEND_ERROR_KICK_IT){ - netif_stop_queue(card->dev); - qeth_schedule_recovery(card); - return; + int bidx = i % QDIO_MAX_BUFFERS_PER_Q; + buffer = queue->bufs[bidx]; + qeth_handle_send_error(card, buffer, qdio_error); + + if (queue->bufstates && + (queue->bufstates[bidx].flags & + QDIO_OUTBUF_STATE_FLAG_PENDING) != 0) { + WARN_ON_ONCE(card->options.cq != QETH_CQ_ENABLED); + + if (atomic_cmpxchg(&buffer->state, + QETH_QDIO_BUF_PRIMED, + QETH_QDIO_BUF_PENDING) == + QETH_QDIO_BUF_PRIMED) { + qeth_notify_skbs(queue, buffer, + TX_NOTIFY_PENDING); + } + buffer->aob = queue->bufstates[bidx].aob; + QETH_CARD_TEXT_(queue->card, 5, "pel%d", bidx); + QETH_CARD_TEXT(queue->card, 5, "aob"); + QETH_CARD_TEXT_(queue->card, 5, "%lx", + virt_to_phys(buffer->aob)); + if (qeth_init_qdio_out_buf(queue, bidx)) { + QETH_CARD_TEXT(card, 2, "outofbuf"); + qeth_schedule_recovery(card); + } + } else { + if (card->options.cq == QETH_CQ_ENABLED) { + enum iucv_tx_notify n; + + n = qeth_compute_cq_notification( + buffer->buffer->element[15].sflags, 0); + qeth_notify_skbs(queue, buffer, n); + } + + qeth_clear_output_buffer(queue, buffer, + QETH_QDIO_BUF_EMPTY); } - qeth_clear_output_buffer(queue, buffer); + qeth_cleanup_handled_pending(queue, bidx, 0); } atomic_sub(count, &queue->used_buffers); /* check if we need to do something on this outbound queue */ @@ -2913,103 +3663,87 @@ void qeth_qdio_output_handler(struct ccw_device *ccwdev, } EXPORT_SYMBOL_GPL(qeth_qdio_output_handler); -int qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb) +/** + * Note: Function assumes that we have 4 outbound queues. + */ +int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, + int ipv, int cast_type) { - int cast_type = RTN_UNSPEC; + __be16 *tci; + u8 tos; - if (card->info.type == QETH_CARD_TYPE_OSN) - return cast_type; - - if (skb->dst && skb->dst->neighbour) { - cast_type = skb->dst->neighbour->type; - if ((cast_type == RTN_BROADCAST) || - (cast_type == RTN_MULTICAST) || - (cast_type == RTN_ANYCAST)) - return cast_type; - else - return RTN_UNSPEC; - } - /* try something else */ - if (skb->protocol == ETH_P_IPV6) - return (skb_network_header(skb)[24] == 0xff) ? - RTN_MULTICAST : 0; - else if (skb->protocol == ETH_P_IP) - return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ? - RTN_MULTICAST : 0; - /* ... */ - if (!memcmp(skb->data, skb->dev->broadcast, 6)) - return RTN_BROADCAST; - else { - u16 hdr_mac; + if (cast_type && card->info.is_multicast_different) + return card->info.is_multicast_different & + (card->qdio.no_out_queues - 1); - hdr_mac = *((u16 *)skb->data); - /* tr multicast? */ - switch (card->info.link_type) { - case QETH_LINK_TYPE_HSTR: - case QETH_LINK_TYPE_LANE_TR: - if ((hdr_mac == QETH_TR_MAC_NC) || - (hdr_mac == QETH_TR_MAC_C)) - return RTN_MULTICAST; + switch (card->qdio.do_prio_queueing) { + case QETH_PRIO_Q_ING_TOS: + case QETH_PRIO_Q_ING_PREC: + switch (ipv) { + case 4: + tos = ipv4_get_dsfield(ip_hdr(skb)); + break; + case 6: + tos = ipv6_get_dsfield(ipv6_hdr(skb)); break; - /* eth or so multicast? */ default: - if ((hdr_mac == QETH_ETH_MAC_V4) || - (hdr_mac == QETH_ETH_MAC_V6)) - return RTN_MULTICAST; + return card->qdio.default_out_queue; } + if (card->qdio.do_prio_queueing == QETH_PRIO_Q_ING_PREC) + return ~tos >> 6 & 3; + if (tos & IPTOS_MINCOST) + return 3; + if (tos & IPTOS_RELIABILITY) + return 2; + if (tos & IPTOS_THROUGHPUT) + return 1; + if (tos & IPTOS_LOWDELAY) + return 0; + break; + case QETH_PRIO_Q_ING_SKB: + if (skb->priority > 5) + return 0; + return ~skb->priority >> 1 & 3; + case QETH_PRIO_Q_ING_VLAN: + tci = &((struct ethhdr *)skb->data)->h_proto; + if (*tci == ETH_P_8021Q) + return ~*(tci + 1) >> (VLAN_PRIO_SHIFT + 1) & 3; + break; + default: + break; } - return cast_type; + return card->qdio.default_out_queue; } -EXPORT_SYMBOL_GPL(qeth_get_cast_type); +EXPORT_SYMBOL_GPL(qeth_get_priority_queue); -int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, - int ipv, int cast_type) +int qeth_get_elements_for_frags(struct sk_buff *skb) { - if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE)) - return card->qdio.default_out_queue; - switch (card->qdio.no_out_queues) { - case 4: - if (cast_type && card->info.is_multicast_different) - return card->info.is_multicast_different & - (card->qdio.no_out_queues - 1); - if (card->qdio.do_prio_queueing && (ipv == 4)) { - const u8 tos = ip_hdr(skb)->tos; - - if (card->qdio.do_prio_queueing == - QETH_PRIO_Q_ING_TOS) { - if (tos & IP_TOS_NOTIMPORTANT) - return 3; - if (tos & IP_TOS_HIGHRELIABILITY) - return 2; - if (tos & IP_TOS_HIGHTHROUGHPUT) - return 1; - if (tos & IP_TOS_LOWDELAY) - return 0; - } - if (card->qdio.do_prio_queueing == - QETH_PRIO_Q_ING_PREC) - return 3 - (tos >> 6); - } else if (card->qdio.do_prio_queueing && (ipv == 6)) { - /* TODO: IPv6!!! */ - } - return card->qdio.default_out_queue; - case 1: /* fallthrough for single-out-queue 1920-device */ - default: - return card->qdio.default_out_queue; + int cnt, length, e, elements = 0; + struct skb_frag_struct *frag; + char *data; + + for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { + frag = &skb_shinfo(skb)->frags[cnt]; + data = (char *)page_to_phys(skb_frag_page(frag)) + + frag->page_offset; + length = frag->size; + e = PFN_UP((unsigned long)data + length - 1) - + PFN_DOWN((unsigned long)data); + elements += e; } + return elements; } -EXPORT_SYMBOL_GPL(qeth_get_priority_queue); +EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags); -int qeth_get_elements_no(struct qeth_card *card, void *hdr, +int qeth_get_elements_no(struct qeth_card *card, struct sk_buff *skb, int elems) { - int elements_needed = 0; + int dlen = skb->len - skb->data_len; + int elements_needed = PFN_UP((unsigned long)skb->data + dlen - 1) - + PFN_DOWN((unsigned long)skb->data); + + elements_needed += qeth_get_elements_for_frags(skb); - if (skb_shinfo(skb)->nr_frags > 0) - elements_needed = (skb_shinfo(skb)->nr_frags + 1); - if (elements_needed == 0) - elements_needed = 1 + (((((unsigned long) skb->data) % - PAGE_SIZE) + skb->len) >> PAGE_SHIFT); if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) { QETH_DBF_MESSAGE(2, "Invalid size of IP packet " "(Number=%d / Length=%d). Discarded.\n", @@ -3020,15 +3754,37 @@ int qeth_get_elements_no(struct qeth_card *card, void *hdr, } EXPORT_SYMBOL_GPL(qeth_get_elements_no); +int qeth_hdr_chk_and_bounce(struct sk_buff *skb, struct qeth_hdr **hdr, int len) +{ + int hroom, inpage, rest; + + if (((unsigned long)skb->data & PAGE_MASK) != + (((unsigned long)skb->data + len - 1) & PAGE_MASK)) { + hroom = skb_headroom(skb); + inpage = PAGE_SIZE - ((unsigned long) skb->data % PAGE_SIZE); + rest = len - inpage; + if (rest > hroom) + return 1; + memmove(skb->data - rest, skb->data, skb->len - skb->data_len); + skb->data -= rest; + skb->tail -= rest; + *hdr = (struct qeth_hdr *)skb->data; + QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len, rest); + } + return 0; +} +EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce); + static inline void __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill, int offset) { - int length = skb->len - offset; + int length = skb->len - skb->data_len; int length_here; int element; char *data; - int first_lap ; + int first_lap, cnt; + struct skb_frag_struct *frag; element = *next_element_to_fill; data = skb->data; @@ -3036,6 +3792,7 @@ static inline void __qeth_fill_buffer(struct sk_buff *skb, if (offset >= 0) { data = skb->data + offset; + length -= offset; first_lap = 0; } @@ -3050,22 +3807,50 @@ static inline void __qeth_fill_buffer(struct sk_buff *skb, length -= length_here; if (!length) { if (first_lap) - buffer->element[element].flags = 0; + if (skb_shinfo(skb)->nr_frags) + buffer->element[element].eflags = + SBAL_EFLAGS_FIRST_FRAG; + else + buffer->element[element].eflags = 0; else - buffer->element[element].flags = - SBAL_FLAGS_LAST_FRAG; + buffer->element[element].eflags = + SBAL_EFLAGS_MIDDLE_FRAG; } else { if (first_lap) - buffer->element[element].flags = - SBAL_FLAGS_FIRST_FRAG; + buffer->element[element].eflags = + SBAL_EFLAGS_FIRST_FRAG; else - buffer->element[element].flags = - SBAL_FLAGS_MIDDLE_FRAG; + buffer->element[element].eflags = + SBAL_EFLAGS_MIDDLE_FRAG; } data += length_here; element++; first_lap = 0; } + + for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { + frag = &skb_shinfo(skb)->frags[cnt]; + data = (char *)page_to_phys(skb_frag_page(frag)) + + frag->page_offset; + length = frag->size; + while (length > 0) { + length_here = PAGE_SIZE - + ((unsigned long) data % PAGE_SIZE); + if (length < length_here) + length_here = length; + + buffer->element[element].addr = data; + buffer->element[element].length = length_here; + buffer->element[element].eflags = + SBAL_EFLAGS_MIDDLE_FRAG; + length -= length_here; + data += length_here; + element++; + } + } + + if (buffer->element[element - 1].eflags) + buffer->element[element - 1].eflags = SBAL_EFLAGS_LAST_FRAG; *next_element_to_fill = element; } @@ -3089,7 +3874,7 @@ static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue, /*fill first buffer entry only with header information */ buffer->element[element].addr = skb->data; buffer->element[element].length = hdr_len; - buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG; + buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG; buf->next_element_to_fill++; skb->data += hdr_len; skb->len -= hdr_len; @@ -3101,25 +3886,21 @@ static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue, buffer->element[element].addr = hdr; buffer->element[element].length = sizeof(struct qeth_hdr) + hd_len; - buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG; + buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG; buf->is_header[element] = 1; buf->next_element_to_fill++; } - if (skb_shinfo(skb)->nr_frags == 0) - __qeth_fill_buffer(skb, buffer, large_send, - (int *)&buf->next_element_to_fill, offset); - else - __qeth_fill_buffer_frag(skb, buffer, large_send, - (int *)&buf->next_element_to_fill); + __qeth_fill_buffer(skb, buffer, large_send, + (int *)&buf->next_element_to_fill, offset); if (!queue->do_pack) { - QETH_DBF_TEXT(TRACE, 6, "fillbfnp"); + QETH_CARD_TEXT(queue->card, 6, "fillbfnp"); /* set state to PRIMED -> will be flushed */ atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); flush_cnt = 1; } else { - QETH_DBF_TEXT(TRACE, 6, "fillbfpa"); + QETH_CARD_TEXT(queue->card, 6, "fillbfpa"); if (queue->card->options.performance_stats) queue->card->perf_stats.skbs_sent_pack++; if (buf->next_element_to_fill >= @@ -3138,11 +3919,9 @@ static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue, int qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue, struct sk_buff *skb, struct qeth_hdr *hdr, int elements_needed, - struct qeth_eddp_context *ctx, int offset, int hd_len) + int offset, int hd_len) { struct qeth_qdio_out_buffer *buffer; - int buffers_needed = 0; - int flush_cnt = 0; int index; /* spin until we get the queue ... */ @@ -3150,34 +3929,18 @@ int qeth_do_send_packet_fast(struct qeth_card *card, QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); /* ... now we've got the queue */ index = queue->next_buf_to_fill; - buffer = &queue->bufs[queue->next_buf_to_fill]; + buffer = queue->bufs[queue->next_buf_to_fill]; /* * check if buffer is empty to make sure that we do not 'overtake' * ourselves and try to fill a buffer that is already primed */ if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) goto out; - if (ctx == NULL) - queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % + queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; - else { - buffers_needed = qeth_eddp_check_buffers_for_context(queue, - ctx); - if (buffers_needed < 0) - goto out; - queue->next_buf_to_fill = - (queue->next_buf_to_fill + buffers_needed) % - QDIO_MAX_BUFFERS_PER_Q; - } atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); - if (ctx == NULL) { - qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len); - qeth_flush_buffers(queue, index, 1); - } else { - flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index); - WARN_ON(buffers_needed != flush_cnt); - qeth_flush_buffers(queue, index, flush_cnt); - } + qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len); + qeth_flush_buffers(queue, index, 1); return 0; out: atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); @@ -3187,7 +3950,7 @@ EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast); int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, struct sk_buff *skb, struct qeth_hdr *hdr, - int elements_needed, struct qeth_eddp_context *ctx) + int elements_needed) { struct qeth_qdio_out_buffer *buffer; int start_index; @@ -3200,7 +3963,7 @@ int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); start_index = queue->next_buf_to_fill; - buffer = &queue->bufs[queue->next_buf_to_fill]; + buffer = queue->bufs[queue->next_buf_to_fill]; /* * check if buffer is empty to make sure that we do not 'overtake' * ourselves and try to fill a buffer that is already primed @@ -3213,53 +3976,32 @@ int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, qeth_switch_to_packing_if_needed(queue); if (queue->do_pack) { do_pack = 1; - if (ctx == NULL) { - /* does packet fit in current buffer? */ - if ((QETH_MAX_BUFFER_ELEMENTS(card) - - buffer->next_element_to_fill) < elements_needed) { - /* ... no -> set state PRIMED */ - atomic_set(&buffer->state, - QETH_QDIO_BUF_PRIMED); - flush_count++; - queue->next_buf_to_fill = - (queue->next_buf_to_fill + 1) % - QDIO_MAX_BUFFERS_PER_Q; - buffer = &queue->bufs[queue->next_buf_to_fill]; - /* we did a step forward, so check buffer state - * again */ - if (atomic_read(&buffer->state) != - QETH_QDIO_BUF_EMPTY){ - qeth_flush_buffers(queue, start_index, + /* does packet fit in current buffer? */ + if ((QETH_MAX_BUFFER_ELEMENTS(card) - + buffer->next_element_to_fill) < elements_needed) { + /* ... no -> set state PRIMED */ + atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); + flush_count++; + queue->next_buf_to_fill = + (queue->next_buf_to_fill + 1) % + QDIO_MAX_BUFFERS_PER_Q; + buffer = queue->bufs[queue->next_buf_to_fill]; + /* we did a step forward, so check buffer state + * again */ + if (atomic_read(&buffer->state) != + QETH_QDIO_BUF_EMPTY) { + qeth_flush_buffers(queue, start_index, flush_count); - atomic_set(&queue->state, + atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); - return -EBUSY; - } - } - } else { - /* check if we have enough elements (including following - * free buffers) to handle eddp context */ - if (qeth_eddp_check_buffers_for_context(queue, ctx) - < 0) { - rc = -EBUSY; - goto out; + return -EBUSY; } } } - if (ctx == NULL) - tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0); - else { - tmp = qeth_eddp_fill_buffer(queue, ctx, - queue->next_buf_to_fill); - if (tmp < 0) { - rc = -EBUSY; - goto out; - } - } + tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0); queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) % QDIO_MAX_BUFFERS_PER_Q; flush_count += tmp; -out: if (flush_count) qeth_flush_buffers(queue, start_index, flush_count); else if (!atomic_read(&queue->set_pci_flags_count)) @@ -3298,14 +4040,14 @@ static int qeth_setadp_promisc_mode_cb(struct qeth_card *card, struct qeth_ipa_cmd *cmd; struct qeth_ipacmd_setadpparms *setparms; - QETH_DBF_TEXT(TRACE, 4, "prmadpcb"); + QETH_CARD_TEXT(card, 4, "prmadpcb"); cmd = (struct qeth_ipa_cmd *) data; setparms = &(cmd->data.setadapterparms); qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); if (cmd->hdr.return_code) { - QETH_DBF_TEXT_(TRACE, 4, "prmrc%2.2x", cmd->hdr.return_code); + QETH_CARD_TEXT_(card, 4, "prmrc%2.2x", cmd->hdr.return_code); setparms->data.mode = SET_PROMISC_MODE_OFF; } card->info.promisc_mode = setparms->data.mode; @@ -3319,7 +4061,7 @@ void qeth_setadp_promisc_mode(struct qeth_card *card) struct qeth_cmd_buffer *iob; struct qeth_ipa_cmd *cmd; - QETH_DBF_TEXT(TRACE, 4, "setprom"); + QETH_CARD_TEXT(card, 4, "setprom"); if (((dev->flags & IFF_PROMISC) && (card->info.promisc_mode == SET_PROMISC_MODE_ON)) || @@ -3329,7 +4071,7 @@ void qeth_setadp_promisc_mode(struct qeth_card *card) mode = SET_PROMISC_MODE_OFF; if (dev->flags & IFF_PROMISC) mode = SET_PROMISC_MODE_ON; - QETH_DBF_TEXT_(TRACE, 4, "mode:%x", mode); + QETH_CARD_TEXT_(card, 4, "mode:%x", mode); iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE, sizeof(struct qeth_ipacmd_setadpparms)); @@ -3346,9 +4088,9 @@ int qeth_change_mtu(struct net_device *dev, int new_mtu) card = dev->ml_priv; - QETH_DBF_TEXT(TRACE, 4, "chgmtu"); + QETH_CARD_TEXT(card, 4, "chgmtu"); sprintf(dbf_text, "%8x", new_mtu); - QETH_DBF_TEXT(TRACE, 4, dbf_text); + QETH_CARD_TEXT(card, 4, dbf_text); if (new_mtu < 64) return -EINVAL; @@ -3368,7 +4110,7 @@ struct net_device_stats *qeth_get_stats(struct net_device *dev) card = dev->ml_priv; - QETH_DBF_TEXT(TRACE, 5, "getstat"); + QETH_CARD_TEXT(card, 5, "getstat"); return &card->stats; } @@ -3379,7 +4121,7 @@ static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card, { struct qeth_ipa_cmd *cmd; - QETH_DBF_TEXT(TRACE, 4, "chgmaccb"); + QETH_CARD_TEXT(card, 4, "chgmaccb"); cmd = (struct qeth_ipa_cmd *) data; if (!card->options.layer2 || @@ -3399,7 +4141,7 @@ int qeth_setadpparms_change_macaddr(struct qeth_card *card) struct qeth_cmd_buffer *iob; struct qeth_ipa_cmd *cmd; - QETH_DBF_TEXT(TRACE, 4, "chgmac"); + QETH_CARD_TEXT(card, 4, "chgmac"); iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS, sizeof(struct qeth_ipacmd_setadpparms)); @@ -3414,11 +4156,153 @@ int qeth_setadpparms_change_macaddr(struct qeth_card *card) } EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr); +static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card, + struct qeth_reply *reply, unsigned long data) +{ + struct qeth_ipa_cmd *cmd; + struct qeth_set_access_ctrl *access_ctrl_req; + int fallback = *(int *)reply->param; + + QETH_CARD_TEXT(card, 4, "setaccb"); + + cmd = (struct qeth_ipa_cmd *) data; + access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; + QETH_DBF_TEXT_(SETUP, 2, "setaccb"); + QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); + QETH_DBF_TEXT_(SETUP, 2, "rc=%d", + cmd->data.setadapterparms.hdr.return_code); + if (cmd->data.setadapterparms.hdr.return_code != + SET_ACCESS_CTRL_RC_SUCCESS) + QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n", + card->gdev->dev.kobj.name, + access_ctrl_req->subcmd_code, + cmd->data.setadapterparms.hdr.return_code); + switch (cmd->data.setadapterparms.hdr.return_code) { + case SET_ACCESS_CTRL_RC_SUCCESS: + if (card->options.isolation == ISOLATION_MODE_NONE) { + dev_info(&card->gdev->dev, + "QDIO data connection isolation is deactivated\n"); + } else { + dev_info(&card->gdev->dev, + "QDIO data connection isolation is activated\n"); + } + break; + case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED: + QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already " + "deactivated\n", dev_name(&card->gdev->dev)); + if (fallback) + card->options.isolation = card->options.prev_isolation; + break; + case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED: + QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already" + " activated\n", dev_name(&card->gdev->dev)); + if (fallback) + card->options.isolation = card->options.prev_isolation; + break; + case SET_ACCESS_CTRL_RC_NOT_SUPPORTED: + dev_err(&card->gdev->dev, "Adapter does not " + "support QDIO data connection isolation\n"); + break; + case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER: + dev_err(&card->gdev->dev, + "Adapter is dedicated. " + "QDIO data connection isolation not supported\n"); + if (fallback) + card->options.isolation = card->options.prev_isolation; + break; + case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF: + dev_err(&card->gdev->dev, + "TSO does not permit QDIO data connection isolation\n"); + if (fallback) + card->options.isolation = card->options.prev_isolation; + break; + case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED: + dev_err(&card->gdev->dev, "The adjacent switch port does not " + "support reflective relay mode\n"); + if (fallback) + card->options.isolation = card->options.prev_isolation; + break; + case SET_ACCESS_CTRL_RC_REFLREL_FAILED: + dev_err(&card->gdev->dev, "The reflective relay mode cannot be " + "enabled at the adjacent switch port"); + if (fallback) + card->options.isolation = card->options.prev_isolation; + break; + case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED: + dev_warn(&card->gdev->dev, "Turning off reflective relay mode " + "at the adjacent switch failed\n"); + break; + default: + /* this should never happen */ + if (fallback) + card->options.isolation = card->options.prev_isolation; + break; + } + qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); + return 0; +} + +static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card, + enum qeth_ipa_isolation_modes isolation, int fallback) +{ + int rc; + struct qeth_cmd_buffer *iob; + struct qeth_ipa_cmd *cmd; + struct qeth_set_access_ctrl *access_ctrl_req; + + QETH_CARD_TEXT(card, 4, "setacctl"); + + QETH_DBF_TEXT_(SETUP, 2, "setacctl"); + QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); + + iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL, + sizeof(struct qeth_ipacmd_setadpparms_hdr) + + sizeof(struct qeth_set_access_ctrl)); + cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); + access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; + access_ctrl_req->subcmd_code = isolation; + + rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb, + &fallback); + QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc); + return rc; +} + +int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback) +{ + int rc = 0; + + QETH_CARD_TEXT(card, 4, "setactlo"); + + if ((card->info.type == QETH_CARD_TYPE_OSD || + card->info.type == QETH_CARD_TYPE_OSX) && + qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) { + rc = qeth_setadpparms_set_access_ctrl(card, + card->options.isolation, fallback); + if (rc) { + QETH_DBF_MESSAGE(3, + "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n", + card->gdev->dev.kobj.name, + rc); + rc = -EOPNOTSUPP; + } + } else if (card->options.isolation != ISOLATION_MODE_NONE) { + card->options.isolation = ISOLATION_MODE_NONE; + + dev_err(&card->gdev->dev, "Adapter does not " + "support QDIO data connection isolation\n"); + rc = -EOPNOTSUPP; + } + return rc; +} +EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online); + void qeth_tx_timeout(struct net_device *dev) { struct qeth_card *card; card = dev->ml_priv; + QETH_CARD_TEXT(card, 4, "txtimeo"); card->stats.tx_errors++; qeth_schedule_recovery(card); } @@ -3497,7 +4381,7 @@ static int qeth_send_ipa_snmp_cmd(struct qeth_card *card, { u16 s1, s2; - QETH_DBF_TEXT(TRACE, 4, "sendsnmp"); + QETH_CARD_TEXT(card, 4, "sendsnmp"); memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), @@ -3522,7 +4406,7 @@ static int qeth_snmp_command_cb(struct qeth_card *card, unsigned char *data; __u16 data_len; - QETH_DBF_TEXT(TRACE, 3, "snpcmdcb"); + QETH_CARD_TEXT(card, 3, "snpcmdcb"); cmd = (struct qeth_ipa_cmd *) sdata; data = (unsigned char *)((char *)cmd - reply->offset); @@ -3530,13 +4414,13 @@ static int qeth_snmp_command_cb(struct qeth_card *card, snmp = &cmd->data.setadapterparms.data.snmp; if (cmd->hdr.return_code) { - QETH_DBF_TEXT_(TRACE, 4, "scer1%i", cmd->hdr.return_code); + QETH_CARD_TEXT_(card, 4, "scer1%i", cmd->hdr.return_code); return 0; } if (cmd->data.setadapterparms.hdr.return_code) { cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code; - QETH_DBF_TEXT_(TRACE, 4, "scer2%i", cmd->hdr.return_code); + QETH_CARD_TEXT_(card, 4, "scer2%i", cmd->hdr.return_code); return 0; } data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data)); @@ -3547,13 +4431,13 @@ static int qeth_snmp_command_cb(struct qeth_card *card, /* check if there is enough room in userspace */ if ((qinfo->udata_len - qinfo->udata_offset) < data_len) { - QETH_DBF_TEXT_(TRACE, 4, "scer3%i", -ENOMEM); - cmd->hdr.return_code = -ENOMEM; + QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM); + cmd->hdr.return_code = IPA_RC_ENOMEM; return 0; } - QETH_DBF_TEXT_(TRACE, 4, "snore%i", + QETH_CARD_TEXT_(card, 4, "snore%i", cmd->data.setadapterparms.hdr.used_total); - QETH_DBF_TEXT_(TRACE, 4, "sseqn%i", + QETH_CARD_TEXT_(card, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no); /*copy entries to user buffer*/ if (cmd->data.setadapterparms.hdr.seq_no == 1) { @@ -3567,9 +4451,9 @@ static int qeth_snmp_command_cb(struct qeth_card *card, } qinfo->udata_offset += data_len; /* check if all replies received ... */ - QETH_DBF_TEXT_(TRACE, 4, "srtot%i", + QETH_CARD_TEXT_(card, 4, "srtot%i", cmd->data.setadapterparms.hdr.used_total); - QETH_DBF_TEXT_(TRACE, 4, "srseq%i", + QETH_CARD_TEXT_(card, 4, "srseq%i", cmd->data.setadapterparms.hdr.seq_no); if (cmd->data.setadapterparms.hdr.seq_no < cmd->data.setadapterparms.hdr.used_total) @@ -3582,11 +4466,11 @@ int qeth_snmp_command(struct qeth_card *card, char __user *udata) struct qeth_cmd_buffer *iob; struct qeth_ipa_cmd *cmd; struct qeth_snmp_ureq *ureq; - int req_len; + unsigned int req_len; struct qeth_arp_query_info qinfo = {0, }; int rc = 0; - QETH_DBF_TEXT(TRACE, 3, "snmpcmd"); + QETH_CARD_TEXT(card, 3, "snmpcmd"); if (card->info.guestlan) return -EOPNOTSUPP; @@ -3598,15 +4482,14 @@ int qeth_snmp_command(struct qeth_card *card, char __user *udata) /* skip 4 bytes (data_len struct member) to get req_len */ if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int))) return -EFAULT; - ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL); - if (!ureq) { - QETH_DBF_TEXT(TRACE, 2, "snmpnome"); - return -ENOMEM; - } - if (copy_from_user(ureq, udata, - req_len + sizeof(struct qeth_snmp_ureq_hdr))) { - kfree(ureq); - return -EFAULT; + if (req_len > (QETH_BUFSIZE - IPA_PDU_HEADER_SIZE - + sizeof(struct qeth_ipacmd_hdr) - + sizeof(struct qeth_ipacmd_setadpparms_hdr))) + return -EINVAL; + ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr)); + if (IS_ERR(ureq)) { + QETH_CARD_TEXT(card, 2, "snmpnome"); + return PTR_ERR(ureq); } qinfo.udata_len = ureq->hdr.data_len; qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL); @@ -3636,6 +4519,140 @@ int qeth_snmp_command(struct qeth_card *card, char __user *udata) } EXPORT_SYMBOL_GPL(qeth_snmp_command); +static int qeth_setadpparms_query_oat_cb(struct qeth_card *card, + struct qeth_reply *reply, unsigned long data) +{ + struct qeth_ipa_cmd *cmd; + struct qeth_qoat_priv *priv; + char *resdata; + int resdatalen; + + QETH_CARD_TEXT(card, 3, "qoatcb"); + + cmd = (struct qeth_ipa_cmd *)data; + priv = (struct qeth_qoat_priv *)reply->param; + resdatalen = cmd->data.setadapterparms.hdr.cmdlength; + resdata = (char *)data + 28; + + if (resdatalen > (priv->buffer_len - priv->response_len)) { + cmd->hdr.return_code = IPA_RC_FFFF; + return 0; + } + + memcpy((priv->buffer + priv->response_len), resdata, + resdatalen); + priv->response_len += resdatalen; + + if (cmd->data.setadapterparms.hdr.seq_no < + cmd->data.setadapterparms.hdr.used_total) + return 1; + return 0; +} + +int qeth_query_oat_command(struct qeth_card *card, char __user *udata) +{ + int rc = 0; + struct qeth_cmd_buffer *iob; + struct qeth_ipa_cmd *cmd; + struct qeth_query_oat *oat_req; + struct qeth_query_oat_data oat_data; + struct qeth_qoat_priv priv; + void __user *tmp; + + QETH_CARD_TEXT(card, 3, "qoatcmd"); + + if (!qeth_adp_supported(card, IPA_SETADP_QUERY_OAT)) { + rc = -EOPNOTSUPP; + goto out; + } + + if (copy_from_user(&oat_data, udata, + sizeof(struct qeth_query_oat_data))) { + rc = -EFAULT; + goto out; + } + + priv.buffer_len = oat_data.buffer_len; + priv.response_len = 0; + priv.buffer = kzalloc(oat_data.buffer_len, GFP_KERNEL); + if (!priv.buffer) { + rc = -ENOMEM; + goto out; + } + + iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_OAT, + sizeof(struct qeth_ipacmd_setadpparms_hdr) + + sizeof(struct qeth_query_oat)); + cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); + oat_req = &cmd->data.setadapterparms.data.query_oat; + oat_req->subcmd_code = oat_data.command; + + rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_query_oat_cb, + &priv); + if (!rc) { + if (is_compat_task()) + tmp = compat_ptr(oat_data.ptr); + else + tmp = (void __user *)(unsigned long)oat_data.ptr; + + if (copy_to_user(tmp, priv.buffer, + priv.response_len)) { + rc = -EFAULT; + goto out_free; + } + + oat_data.response_len = priv.response_len; + + if (copy_to_user(udata, &oat_data, + sizeof(struct qeth_query_oat_data))) + rc = -EFAULT; + } else + if (rc == IPA_RC_FFFF) + rc = -EFAULT; + +out_free: + kfree(priv.buffer); +out: + return rc; +} +EXPORT_SYMBOL_GPL(qeth_query_oat_command); + +static int qeth_query_card_info_cb(struct qeth_card *card, + struct qeth_reply *reply, unsigned long data) +{ + struct qeth_ipa_cmd *cmd; + struct qeth_query_card_info *card_info; + struct carrier_info *carrier_info; + + QETH_CARD_TEXT(card, 2, "qcrdincb"); + carrier_info = (struct carrier_info *)reply->param; + cmd = (struct qeth_ipa_cmd *)data; + card_info = &cmd->data.setadapterparms.data.card_info; + if (cmd->data.setadapterparms.hdr.return_code == 0) { + carrier_info->card_type = card_info->card_type; + carrier_info->port_mode = card_info->port_mode; + carrier_info->port_speed = card_info->port_speed; + } + + qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); + return 0; +} + +int qeth_query_card_info(struct qeth_card *card, + struct carrier_info *carrier_info) +{ + struct qeth_cmd_buffer *iob; + + QETH_CARD_TEXT(card, 2, "qcrdinfo"); + if (!qeth_adp_supported(card, IPA_SETADP_QUERY_CARD_INFO)) + return -EOPNOTSUPP; + iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_CARD_INFO, + sizeof(struct qeth_ipacmd_setadpparms_hdr)); + return qeth_send_ipa_cmd(card, iob, qeth_query_card_info_cb, + (void *)carrier_info); +} +EXPORT_SYMBOL_GPL(qeth_query_card_info); + static inline int qeth_get_qdio_q_format(struct qeth_card *card) { switch (card->info.type) { @@ -3646,11 +4663,86 @@ static inline int qeth_get_qdio_q_format(struct qeth_card *card) } } +static void qeth_determine_capabilities(struct qeth_card *card) +{ + int rc; + int length; + char *prcd; + struct ccw_device *ddev; + int ddev_offline = 0; + + QETH_DBF_TEXT(SETUP, 2, "detcapab"); + ddev = CARD_DDEV(card); + if (!ddev->online) { + ddev_offline = 1; + rc = ccw_device_set_online(ddev); + if (rc) { + QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); + goto out; + } + } + + rc = qeth_read_conf_data(card, (void **) &prcd, &length); + if (rc) { + QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n", + dev_name(&card->gdev->dev), rc); + QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); + goto out_offline; + } + qeth_configure_unitaddr(card, prcd); + if (ddev_offline) + qeth_configure_blkt_default(card, prcd); + kfree(prcd); + + rc = qdio_get_ssqd_desc(ddev, &card->ssqd); + if (rc) + QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); + + QETH_DBF_TEXT_(SETUP, 2, "qfmt%d", card->ssqd.qfmt); + QETH_DBF_TEXT_(SETUP, 2, "%d", card->ssqd.qdioac1); + QETH_DBF_TEXT_(SETUP, 2, "%d", card->ssqd.qdioac3); + QETH_DBF_TEXT_(SETUP, 2, "icnt%d", card->ssqd.icnt); + if (!((card->ssqd.qfmt != QDIO_IQDIO_QFMT) || + ((card->ssqd.qdioac1 & CHSC_AC1_INITIATE_INPUTQ) == 0) || + ((card->ssqd.qdioac3 & CHSC_AC3_FORMAT2_CQ_AVAILABLE) == 0))) { + dev_info(&card->gdev->dev, + "Completion Queueing supported\n"); + } else { + card->options.cq = QETH_CQ_NOTAVAILABLE; + } + + +out_offline: + if (ddev_offline == 1) + ccw_device_set_offline(ddev); +out: + return; +} + +static inline void qeth_qdio_establish_cq(struct qeth_card *card, + struct qdio_buffer **in_sbal_ptrs, + void (**queue_start_poll) (struct ccw_device *, int, unsigned long)) { + int i; + + if (card->options.cq == QETH_CQ_ENABLED) { + int offset = QDIO_MAX_BUFFERS_PER_Q * + (card->qdio.no_in_queues - 1); + i = QDIO_MAX_BUFFERS_PER_Q * (card->qdio.no_in_queues - 1); + for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { + in_sbal_ptrs[offset + i] = (struct qdio_buffer *) + virt_to_phys(card->qdio.c_q->bufs[i].buffer); + } + + queue_start_poll[card->qdio.no_in_queues - 1] = NULL; + } +} + static int qeth_qdio_establish(struct qeth_card *card) { struct qdio_initialize init_data; char *qib_param_field; struct qdio_buffer **in_sbal_ptrs; + void (**queue_start_poll) (struct ccw_device *, int, unsigned long); struct qdio_buffer **out_sbal_ptrs; int i, j, k; int rc = 0; @@ -3659,34 +4751,48 @@ static int qeth_qdio_establish(struct qeth_card *card) qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char), GFP_KERNEL); - if (!qib_param_field) - return -ENOMEM; + if (!qib_param_field) { + rc = -ENOMEM; + goto out_free_nothing; + } qeth_create_qib_param_field(card, qib_param_field); qeth_create_qib_param_field_blkt(card, qib_param_field); - in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *), + in_sbal_ptrs = kzalloc(card->qdio.no_in_queues * + QDIO_MAX_BUFFERS_PER_Q * sizeof(void *), GFP_KERNEL); if (!in_sbal_ptrs) { - kfree(qib_param_field); - return -ENOMEM; + rc = -ENOMEM; + goto out_free_qib_param; } - for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) + for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { in_sbal_ptrs[i] = (struct qdio_buffer *) virt_to_phys(card->qdio.in_q->bufs[i].buffer); + } + + queue_start_poll = kzalloc(sizeof(void *) * card->qdio.no_in_queues, + GFP_KERNEL); + if (!queue_start_poll) { + rc = -ENOMEM; + goto out_free_in_sbals; + } + for (i = 0; i < card->qdio.no_in_queues; ++i) + queue_start_poll[i] = card->discipline->start_poll; + + qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll); out_sbal_ptrs = - kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q * + kzalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q * sizeof(void *), GFP_KERNEL); if (!out_sbal_ptrs) { - kfree(in_sbal_ptrs); - kfree(qib_param_field); - return -ENOMEM; + rc = -ENOMEM; + goto out_free_queue_start_poll; } for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i) for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) { out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys( - card->qdio.out_qs[i]->bufs[j].buffer); + card->qdio.out_qs[i]->bufs[j]->buffer); } memset(&init_data, 0, sizeof(struct qdio_initialize)); @@ -3694,26 +4800,51 @@ static int qeth_qdio_establish(struct qeth_card *card) init_data.q_format = qeth_get_qdio_q_format(card); init_data.qib_param_field_format = 0; init_data.qib_param_field = qib_param_field; - init_data.no_input_qs = 1; + init_data.no_input_qs = card->qdio.no_in_queues; init_data.no_output_qs = card->qdio.no_out_queues; - init_data.input_handler = card->discipline.input_handler; - init_data.output_handler = card->discipline.output_handler; + init_data.input_handler = card->discipline->input_handler; + init_data.output_handler = card->discipline->output_handler; + init_data.queue_start_poll_array = queue_start_poll; init_data.int_parm = (unsigned long) card; - init_data.flags = QDIO_INBOUND_0COPY_SBALS | - QDIO_OUTBOUND_0COPY_SBALS | - QDIO_USE_OUTBOUND_PCIS; init_data.input_sbal_addr_array = (void **) in_sbal_ptrs; init_data.output_sbal_addr_array = (void **) out_sbal_ptrs; + init_data.output_sbal_state_array = card->qdio.out_bufstates; + init_data.scan_threshold = + (card->info.type == QETH_CARD_TYPE_IQD) ? 1 : 32; if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED, QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) { - rc = qdio_initialize(&init_data); - if (rc) + rc = qdio_allocate(&init_data); + if (rc) { + atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); + goto out; + } + rc = qdio_establish(&init_data); + if (rc) { atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); + qdio_free(CARD_DDEV(card)); + } + } + + switch (card->options.cq) { + case QETH_CQ_ENABLED: + dev_info(&card->gdev->dev, "Completion Queue support enabled"); + break; + case QETH_CQ_DISABLED: + dev_info(&card->gdev->dev, "Completion Queue support disabled"); + break; + default: + break; } +out: kfree(out_sbal_ptrs); +out_free_queue_start_poll: + kfree(queue_start_poll); +out_free_in_sbals: kfree(in_sbal_ptrs); +out_free_qib_param: kfree(qib_param_field); +out_free_nothing: return rc; } @@ -3728,51 +4859,75 @@ static void qeth_core_free_card(struct qeth_card *card) free_netdev(card->dev); kfree(card->ip_tbd_list); qeth_free_qdio_buffers(card); + unregister_service_level(&card->qeth_service_level); kfree(card); } +void qeth_trace_features(struct qeth_card *card) +{ + QETH_CARD_TEXT(card, 2, "features"); + QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa4.supported_funcs); + QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa4.enabled_funcs); + QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa6.supported_funcs); + QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa6.enabled_funcs); + QETH_CARD_TEXT_(card, 2, "%x", card->options.adp.supported_funcs); + QETH_CARD_TEXT_(card, 2, "%x", card->options.adp.enabled_funcs); + QETH_CARD_TEXT_(card, 2, "%x", card->info.diagass_support); +} +EXPORT_SYMBOL_GPL(qeth_trace_features); + static struct ccw_device_id qeth_ids[] = { - {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE}, - {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD}, - {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN}, + {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01), + .driver_info = QETH_CARD_TYPE_OSD}, + {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05), + .driver_info = QETH_CARD_TYPE_IQD}, + {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06), + .driver_info = QETH_CARD_TYPE_OSN}, + {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03), + .driver_info = QETH_CARD_TYPE_OSM}, + {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02), + .driver_info = QETH_CARD_TYPE_OSX}, {}, }; MODULE_DEVICE_TABLE(ccw, qeth_ids); static struct ccw_driver qeth_ccw_driver = { - .name = "qeth", + .driver = { + .owner = THIS_MODULE, + .name = "qeth", + }, .ids = qeth_ids, .probe = ccwgroup_probe_ccwdev, .remove = ccwgroup_remove_ccwdev, }; -static int qeth_core_driver_group(const char *buf, struct device *root_dev, - unsigned long driver_id) -{ - return ccwgroup_create_from_string(root_dev, driver_id, - &qeth_ccw_driver, 3, buf); -} - int qeth_core_hardsetup_card(struct qeth_card *card) { - struct qdio_ssqd_desc *qdio_ssqd; int retries = 3; - int mpno = 0; int rc; QETH_DBF_TEXT(SETUP, 2, "hrdsetup"); atomic_set(&card->force_alloc_skb, 0); + qeth_update_from_chp_desc(card); retry: - if (retries < 3) { - PRINT_WARN("Retrying to do IDX activates.\n"); - ccw_device_set_offline(CARD_DDEV(card)); - ccw_device_set_offline(CARD_WDEV(card)); - ccw_device_set_offline(CARD_RDEV(card)); - ccw_device_set_online(CARD_RDEV(card)); - ccw_device_set_online(CARD_WDEV(card)); - ccw_device_set_online(CARD_DDEV(card)); - } + if (retries < 3) + QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n", + dev_name(&card->gdev->dev)); rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); + ccw_device_set_offline(CARD_DDEV(card)); + ccw_device_set_offline(CARD_WDEV(card)); + ccw_device_set_offline(CARD_RDEV(card)); + qdio_free(CARD_DDEV(card)); + rc = ccw_device_set_online(CARD_RDEV(card)); + if (rc) + goto retriable; + rc = ccw_device_set_online(CARD_WDEV(card)); + if (rc) + goto retriable; + rc = ccw_device_set_online(CARD_DDEV(card)); + if (rc) + goto retriable; +retriable: if (rc == -ERESTARTSYS) { QETH_DBF_TEXT(SETUP, 2, "break1"); return rc; @@ -3783,24 +4938,7 @@ retry: else goto retry; } - - rc = qeth_get_unitaddr(card); - if (rc) { - QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); - return rc; - } - - qdio_ssqd = qdio_get_ssqd_desc(CARD_DDEV(card)); - if (qdio_ssqd) - mpno = qdio_ssqd->pcnt; - if (mpno) - mpno = min(mpno - 1, QETH_MAX_PORTNO); - if (card->info.portno > mpno) { - QETH_DBF_MESSAGE(2, "Device %s does not offer port number %d" - "\n.", CARD_BUS_ID(card), card->info.portno); - rc = -ENODEV; - goto out; - } + qeth_determine_capabilities(card); qeth_init_tokens(card); qeth_init_func_level(card); rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb); @@ -3825,41 +4963,62 @@ retry: else goto retry; } + card->read_or_write_problem = 0; rc = qeth_mpc_initialize(card); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); goto out; } + + card->options.ipa4.supported_funcs = 0; + card->options.adp.supported_funcs = 0; + card->options.sbp.supported_funcs = 0; + card->info.diagass_support = 0; + qeth_query_ipassists(card, QETH_PROT_IPV4); + if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) + qeth_query_setadapterparms(card); + if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) + qeth_query_setdiagass(card); return 0; out: - PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc); + dev_warn(&card->gdev->dev, "The qeth device driver failed to recover " + "an error on the device\n"); + QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n", + dev_name(&card->gdev->dev), rc); return rc; } EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card); -static inline int qeth_create_skb_frag(struct qdio_buffer_element *element, +static inline int qeth_create_skb_frag(struct qeth_qdio_buffer *qethbuffer, + struct qdio_buffer_element *element, struct sk_buff **pskb, int offset, int *pfrag, int data_len) { struct page *page = virt_to_page(element->addr); if (*pskb == NULL) { - /* the upper protocol layers assume that there is data in the - * skb itself. Copy a small amount (64 bytes) to make them - * happy. */ - *pskb = dev_alloc_skb(64 + ETH_HLEN); - if (!(*pskb)) - return -ENOMEM; + if (qethbuffer->rx_skb) { + /* only if qeth_card.options.cq == QETH_CQ_ENABLED */ + *pskb = qethbuffer->rx_skb; + qethbuffer->rx_skb = NULL; + } else { + *pskb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN); + if (!(*pskb)) + return -ENOMEM; + } + skb_reserve(*pskb, ETH_HLEN); - if (data_len <= 64) { + if (data_len <= QETH_RX_PULL_LEN) { memcpy(skb_put(*pskb, data_len), element->addr + offset, data_len); } else { get_page(page); - memcpy(skb_put(*pskb, 64), element->addr + offset, 64); - skb_fill_page_desc(*pskb, *pfrag, page, offset + 64, - data_len - 64); - (*pskb)->data_len += data_len - 64; - (*pskb)->len += data_len - 64; - (*pskb)->truesize += data_len - 64; + memcpy(skb_put(*pskb, QETH_RX_PULL_LEN), + element->addr + offset, QETH_RX_PULL_LEN); + skb_fill_page_desc(*pskb, *pfrag, page, + offset + QETH_RX_PULL_LEN, + data_len - QETH_RX_PULL_LEN); + (*pskb)->data_len += data_len - QETH_RX_PULL_LEN; + (*pskb)->len += data_len - QETH_RX_PULL_LEN; + (*pskb)->truesize += data_len - QETH_RX_PULL_LEN; (*pfrag)++; } } else { @@ -3870,18 +5029,21 @@ static inline int qeth_create_skb_frag(struct qdio_buffer_element *element, (*pskb)->truesize += data_len; (*pfrag)++; } + + return 0; } struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, - struct qdio_buffer *buffer, + struct qeth_qdio_buffer *qethbuffer, struct qdio_buffer_element **__element, int *__offset, struct qeth_hdr **hdr) { struct qdio_buffer_element *element = *__element; + struct qdio_buffer *buffer = qethbuffer->buffer; int offset = *__offset; struct sk_buff *skb = NULL; - int skb_len; + int skb_len = 0; void *data_ptr; int data_len; int headroom = 0; @@ -3900,28 +5062,29 @@ struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, *hdr = element->addr + offset; offset += sizeof(struct qeth_hdr); - if (card->options.layer2) { - if (card->info.type == QETH_CARD_TYPE_OSN) { - skb_len = (*hdr)->hdr.osn.pdu_length; - headroom = sizeof(struct qeth_hdr); - } else { - skb_len = (*hdr)->hdr.l2.pkt_length; - } - } else { + switch ((*hdr)->hdr.l2.id) { + case QETH_HEADER_TYPE_LAYER2: + skb_len = (*hdr)->hdr.l2.pkt_length; + break; + case QETH_HEADER_TYPE_LAYER3: skb_len = (*hdr)->hdr.l3.length; - if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) || - (card->info.link_type == QETH_LINK_TYPE_HSTR)) - headroom = TR_HLEN; - else - headroom = ETH_HLEN; + headroom = ETH_HLEN; + break; + case QETH_HEADER_TYPE_OSN: + skb_len = (*hdr)->hdr.osn.pdu_length; + headroom = sizeof(struct qeth_hdr); + break; + default: + break; } if (!skb_len) return NULL; - if ((skb_len >= card->options.rx_sg_cb) && - (!(card->info.type == QETH_CARD_TYPE_OSN)) && - (!atomic_read(&card->force_alloc_skb))) { + if (((skb_len >= card->options.rx_sg_cb) && + (!(card->info.type == QETH_CARD_TYPE_OSN)) && + (!atomic_read(&card->force_alloc_skb))) || + (card->options.cq == QETH_CQ_ENABLED)) { use_rx_sg = 1; } else { skb = dev_alloc_skb(skb_len + headroom); @@ -3936,8 +5099,8 @@ struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, data_len = min(skb_len, (int)(element->length - offset)); if (data_len) { if (use_rx_sg) { - if (qeth_create_skb_frag(element, &skb, offset, - &frag, data_len)) + if (qeth_create_skb_frag(qethbuffer, element, + &skb, offset, &frag, data_len)) goto no_mem; } else { memcpy(skb_put(skb, data_len), data_ptr, @@ -3947,13 +5110,8 @@ struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, skb_len -= data_len; if (skb_len) { if (qeth_is_last_sbale(element)) { - QETH_DBF_TEXT(TRACE, 4, "unexeob"); - QETH_DBF_TEXT_(TRACE, 4, "%s", - CARD_BUS_ID(card)); - QETH_DBF_TEXT(QERR, 2, "unexeob"); - QETH_DBF_TEXT_(QERR, 2, "%s", - CARD_BUS_ID(card)); - QETH_DBF_HEX(MISC, 4, buffer, sizeof(*buffer)); + QETH_CARD_TEXT(card, 4, "unexeob"); + QETH_CARD_HEX(card, 2, buffer, sizeof(void *)); dev_kfree_skb_any(skb); card->stats.rx_errors++; return NULL; @@ -3974,8 +5132,7 @@ struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, return skb; no_mem: if (net_ratelimit()) { - QETH_DBF_TEXT(TRACE, 2, "noskbmem"); - QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card)); + QETH_CARD_TEXT(card, 2, "noskbmem"); } card->stats.rx_dropped++; return NULL; @@ -3991,17 +5148,17 @@ static void qeth_unregister_dbf_views(void) } } -void qeth_dbf_longtext(enum qeth_dbf_names dbf_nix, int level, char *fmt, ...) +void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...) { char dbf_txt_buf[32]; va_list args; - if (level > (qeth_dbf[dbf_nix].id)->level) + if (!debug_level_enabled(id, level)) return; va_start(args, fmt); vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args); va_end(args); - debug_text_event(qeth_dbf[dbf_nix].id, level, dbf_txt_buf); + debug_text_event(id, level, dbf_txt_buf); } EXPORT_SYMBOL_GPL(qeth_dbf_longtext); @@ -4039,33 +5196,110 @@ int qeth_core_load_discipline(struct qeth_card *card, enum qeth_discipline_id discipline) { int rc = 0; + mutex_lock(&qeth_mod_mutex); switch (discipline) { case QETH_DISCIPLINE_LAYER3: - card->discipline.ccwgdriver = try_then_request_module( - symbol_get(qeth_l3_ccwgroup_driver), - "qeth_l3"); + card->discipline = try_then_request_module( + symbol_get(qeth_l3_discipline), "qeth_l3"); break; case QETH_DISCIPLINE_LAYER2: - card->discipline.ccwgdriver = try_then_request_module( - symbol_get(qeth_l2_ccwgroup_driver), - "qeth_l2"); + card->discipline = try_then_request_module( + symbol_get(qeth_l2_discipline), "qeth_l2"); break; } - if (!card->discipline.ccwgdriver) { - PRINT_ERR("Support for discipline %d not present\n", - discipline); + if (!card->discipline) { + dev_err(&card->gdev->dev, "There is no kernel module to " + "support discipline %d\n", discipline); rc = -EINVAL; } + mutex_unlock(&qeth_mod_mutex); return rc; } void qeth_core_free_discipline(struct qeth_card *card) { if (card->options.layer2) - symbol_put(qeth_l2_ccwgroup_driver); + symbol_put(qeth_l2_discipline); else - symbol_put(qeth_l3_ccwgroup_driver); - card->discipline.ccwgdriver = NULL; + symbol_put(qeth_l3_discipline); + card->discipline = NULL; +} + +static const struct device_type qeth_generic_devtype = { + .name = "qeth_generic", + .groups = qeth_generic_attr_groups, +}; +static const struct device_type qeth_osn_devtype = { + .name = "qeth_osn", + .groups = qeth_osn_attr_groups, +}; + +#define DBF_NAME_LEN 20 + +struct qeth_dbf_entry { + char dbf_name[DBF_NAME_LEN]; + debug_info_t *dbf_info; + struct list_head dbf_list; +}; + +static LIST_HEAD(qeth_dbf_list); +static DEFINE_MUTEX(qeth_dbf_list_mutex); + +static debug_info_t *qeth_get_dbf_entry(char *name) +{ + struct qeth_dbf_entry *entry; + debug_info_t *rc = NULL; + + mutex_lock(&qeth_dbf_list_mutex); + list_for_each_entry(entry, &qeth_dbf_list, dbf_list) { + if (strcmp(entry->dbf_name, name) == 0) { + rc = entry->dbf_info; + break; + } + } + mutex_unlock(&qeth_dbf_list_mutex); + return rc; +} + +static int qeth_add_dbf_entry(struct qeth_card *card, char *name) +{ + struct qeth_dbf_entry *new_entry; + + card->debug = debug_register(name, 2, 1, 8); + if (!card->debug) { + QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf"); + goto err; + } + if (debug_register_view(card->debug, &debug_hex_ascii_view)) + goto err_dbg; + new_entry = kzalloc(sizeof(struct qeth_dbf_entry), GFP_KERNEL); + if (!new_entry) + goto err_dbg; + strncpy(new_entry->dbf_name, name, DBF_NAME_LEN); + new_entry->dbf_info = card->debug; + mutex_lock(&qeth_dbf_list_mutex); + list_add(&new_entry->dbf_list, &qeth_dbf_list); + mutex_unlock(&qeth_dbf_list_mutex); + + return 0; + +err_dbg: + debug_unregister(card->debug); +err: + return -ENOMEM; +} + +static void qeth_clear_dbf_list(void) +{ + struct qeth_dbf_entry *entry, *tmp; + + mutex_lock(&qeth_dbf_list_mutex); + list_for_each_entry_safe(entry, tmp, &qeth_dbf_list, dbf_list) { + list_del(&entry->dbf_list); + debug_unregister(entry->dbf_info); + kfree(entry); + } + mutex_unlock(&qeth_dbf_list_mutex); } static int qeth_core_probe_device(struct ccwgroup_device *gdev) @@ -4074,6 +5308,7 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev) struct device *dev; int rc; unsigned long flags; + char dbf_name[DBF_NAME_LEN]; QETH_DBF_TEXT(SETUP, 2, "probedev"); @@ -4081,7 +5316,7 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev) if (!get_device(dev)) return -ENODEV; - QETH_DBF_TEXT_(SETUP, 2, "%s", gdev->dev.bus_id); + QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev)); card = qeth_alloc_card(); if (!card) { @@ -4089,6 +5324,16 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev) rc = -ENOMEM; goto err_dev; } + + snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s", + dev_name(&gdev->dev)); + card->debug = qeth_get_dbf_entry(dbf_name); + if (!card->debug) { + rc = qeth_add_dbf_entry(card, dbf_name); + if (rc) + goto err_card; + } + card->read.ccwdev = gdev->cdev[0]; card->write.ccwdev = gdev->cdev[1]; card->data.ccwdev = gdev->cdev[2]; @@ -4109,32 +5354,35 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev) goto err_card; } - if (card->info.type == QETH_CARD_TYPE_OSN) { - rc = qeth_core_create_osn_attributes(dev); - if (rc) - goto err_card; + if (card->info.type == QETH_CARD_TYPE_OSN) + gdev->dev.type = &qeth_osn_devtype; + else + gdev->dev.type = &qeth_generic_devtype; + + switch (card->info.type) { + case QETH_CARD_TYPE_OSN: + case QETH_CARD_TYPE_OSM: rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2); - if (rc) { - qeth_core_remove_osn_attributes(dev); - goto err_card; - } - rc = card->discipline.ccwgdriver->probe(card->gdev); - if (rc) { - qeth_core_free_discipline(card); - qeth_core_remove_osn_attributes(dev); - goto err_card; - } - } else { - rc = qeth_core_create_device_attributes(dev); if (rc) goto err_card; + rc = card->discipline->setup(card->gdev); + if (rc) + goto err_disc; + case QETH_CARD_TYPE_OSD: + case QETH_CARD_TYPE_OSX: + default: + break; } write_lock_irqsave(&qeth_core_card_list.rwlock, flags); list_add_tail(&card->list, &qeth_core_card_list.list); write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); + + qeth_determine_capabilities(card); return 0; +err_disc: + qeth_core_free_discipline(card); err_card: qeth_core_free_card(card); err_dev: @@ -4147,16 +5395,13 @@ static void qeth_core_remove_device(struct ccwgroup_device *gdev) unsigned long flags; struct qeth_card *card = dev_get_drvdata(&gdev->dev); - if (card->discipline.ccwgdriver) { - card->discipline.ccwgdriver->remove(gdev); + QETH_DBF_TEXT(SETUP, 2, "removedv"); + + if (card->discipline) { + card->discipline->remove(gdev); qeth_core_free_discipline(card); } - if (card->info.type == QETH_CARD_TYPE_OSN) { - qeth_core_remove_osn_attributes(&gdev->dev); - } else { - qeth_core_remove_device_attributes(&gdev->dev); - } write_lock_irqsave(&qeth_core_card_list.rwlock, flags); list_del(&card->list); write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); @@ -4172,7 +5417,7 @@ static int qeth_core_set_online(struct ccwgroup_device *gdev) int rc = 0; int def_discipline; - if (!card->discipline.ccwgdriver) { + if (!card->discipline) { if (card->info.type == QETH_CARD_TYPE_IQD) def_discipline = QETH_DISCIPLINE_LAYER3; else @@ -4180,11 +5425,11 @@ static int qeth_core_set_online(struct ccwgroup_device *gdev) rc = qeth_core_load_discipline(card, def_discipline); if (rc) goto err; - rc = card->discipline.ccwgdriver->probe(card->gdev); + rc = card->discipline->setup(card->gdev); if (rc) goto err; } - rc = card->discipline.ccwgdriver->set_online(gdev); + rc = card->discipline->set_online(gdev); err: return rc; } @@ -4192,43 +5437,96 @@ err: static int qeth_core_set_offline(struct ccwgroup_device *gdev) { struct qeth_card *card = dev_get_drvdata(&gdev->dev); - return card->discipline.ccwgdriver->set_offline(gdev); + return card->discipline->set_offline(gdev); } static void qeth_core_shutdown(struct ccwgroup_device *gdev) { struct qeth_card *card = dev_get_drvdata(&gdev->dev); - if (card->discipline.ccwgdriver && - card->discipline.ccwgdriver->shutdown) - card->discipline.ccwgdriver->shutdown(gdev); + if (card->discipline && card->discipline->shutdown) + card->discipline->shutdown(gdev); +} + +static int qeth_core_prepare(struct ccwgroup_device *gdev) +{ + struct qeth_card *card = dev_get_drvdata(&gdev->dev); + if (card->discipline && card->discipline->prepare) + return card->discipline->prepare(gdev); + return 0; +} + +static void qeth_core_complete(struct ccwgroup_device *gdev) +{ + struct qeth_card *card = dev_get_drvdata(&gdev->dev); + if (card->discipline && card->discipline->complete) + card->discipline->complete(gdev); +} + +static int qeth_core_freeze(struct ccwgroup_device *gdev) +{ + struct qeth_card *card = dev_get_drvdata(&gdev->dev); + if (card->discipline && card->discipline->freeze) + return card->discipline->freeze(gdev); + return 0; +} + +static int qeth_core_thaw(struct ccwgroup_device *gdev) +{ + struct qeth_card *card = dev_get_drvdata(&gdev->dev); + if (card->discipline && card->discipline->thaw) + return card->discipline->thaw(gdev); + return 0; +} + +static int qeth_core_restore(struct ccwgroup_device *gdev) +{ + struct qeth_card *card = dev_get_drvdata(&gdev->dev); + if (card->discipline && card->discipline->restore) + return card->discipline->restore(gdev); + return 0; } static struct ccwgroup_driver qeth_core_ccwgroup_driver = { - .owner = THIS_MODULE, - .name = "qeth", - .driver_id = 0xD8C5E3C8, - .probe = qeth_core_probe_device, + .driver = { + .owner = THIS_MODULE, + .name = "qeth", + }, + .setup = qeth_core_probe_device, .remove = qeth_core_remove_device, .set_online = qeth_core_set_online, .set_offline = qeth_core_set_offline, .shutdown = qeth_core_shutdown, + .prepare = qeth_core_prepare, + .complete = qeth_core_complete, + .freeze = qeth_core_freeze, + .thaw = qeth_core_thaw, + .restore = qeth_core_restore, }; -static ssize_t -qeth_core_driver_group_store(struct device_driver *ddrv, const char *buf, - size_t count) +static ssize_t qeth_core_driver_group_store(struct device_driver *ddrv, + const char *buf, size_t count) { int err; - err = qeth_core_driver_group(buf, qeth_core_root_dev, - qeth_core_ccwgroup_driver.driver_id); - if (err) - return err; - else - return count; -} + err = ccwgroup_create_dev(qeth_core_root_dev, + &qeth_core_ccwgroup_driver, 3, buf); + + return err ? err : count; +} static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store); +static struct attribute *qeth_drv_attrs[] = { + &driver_attr_group.attr, + NULL, +}; +static struct attribute_group qeth_drv_attr_group = { + .attrs = qeth_drv_attrs, +}; +static const struct attribute_group *qeth_drv_attr_groups[] = { + &qeth_drv_attr_group, + NULL, +}; + static struct { const char str[ETH_GSTRING_LEN]; } qeth_ethtool_stats_keys[] = { @@ -4255,8 +5553,8 @@ static struct { /* 20 */{"queue 1 buffer usage"}, {"queue 2 buffer usage"}, {"queue 3 buffer usage"}, - {"rx handler time"}, - {"rx handler count"}, + {"rx poll time"}, + {"rx poll count"}, {"rx do_QDIO time"}, {"rx do_QDIO count"}, {"tx handler time"}, @@ -4265,13 +5563,22 @@ static struct { /* 30 */{"tx count"}, {"tx do_QDIO time"}, {"tx do_QDIO count"}, + {"tx csum"}, + {"tx lin"}, + {"cq handler count"}, + {"cq handler time"} }; -int qeth_core_get_stats_count(struct net_device *dev) +int qeth_core_get_sset_count(struct net_device *dev, int stringset) { - return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN); + switch (stringset) { + case ETH_SS_STATS: + return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN); + default: + return -EINVAL; + } } -EXPORT_SYMBOL_GPL(qeth_core_get_stats_count); +EXPORT_SYMBOL_GPL(qeth_core_get_sset_count); void qeth_core_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data) @@ -4316,6 +5623,10 @@ void qeth_core_get_ethtool_stats(struct net_device *dev, data[30] = card->perf_stats.outbound_cnt; data[31] = card->perf_stats.outbound_do_qdio_time; data[32] = card->perf_stats.outbound_do_qdio_cnt; + data[33] = card->perf_stats.tx_csum; + data[34] = card->perf_stats.tx_lin; + data[35] = card->perf_stats.cq_cnt; + data[36] = card->perf_stats.cq_time; } EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats); @@ -4337,25 +5648,77 @@ void qeth_core_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { struct qeth_card *card = dev->ml_priv; - if (card->options.layer2) - strcpy(info->driver, "qeth_l2"); - else - strcpy(info->driver, "qeth_l3"); - strcpy(info->version, "1.0"); - strcpy(info->fw_version, card->info.mcl_level); - sprintf(info->bus_info, "%s/%s/%s", - CARD_RDEV_ID(card), - CARD_WDEV_ID(card), - CARD_DDEV_ID(card)); + strlcpy(info->driver, card->options.layer2 ? "qeth_l2" : "qeth_l3", + sizeof(info->driver)); + strlcpy(info->version, "1.0", sizeof(info->version)); + strlcpy(info->fw_version, card->info.mcl_level, + sizeof(info->fw_version)); + snprintf(info->bus_info, sizeof(info->bus_info), "%s/%s/%s", + CARD_RDEV_ID(card), CARD_WDEV_ID(card), CARD_DDEV_ID(card)); } EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo); +/* Helper function to fill 'advertizing' and 'supported' which are the same. */ +/* Autoneg and full-duplex are supported and advertized uncondionally. */ +/* Always advertize and support all speeds up to specified, and only one */ +/* specified port type. */ +static void qeth_set_ecmd_adv_sup(struct ethtool_cmd *ecmd, + int maxspeed, int porttype) +{ + int port_sup, port_adv, spd_sup, spd_adv; + + switch (porttype) { + case PORT_TP: + port_sup = SUPPORTED_TP; + port_adv = ADVERTISED_TP; + break; + case PORT_FIBRE: + port_sup = SUPPORTED_FIBRE; + port_adv = ADVERTISED_FIBRE; + break; + default: + port_sup = SUPPORTED_TP; + port_adv = ADVERTISED_TP; + WARN_ON_ONCE(1); + } + + /* "Fallthrough" case'es ordered from high to low result in setting */ + /* flags cumulatively, starting from the specified speed and down to */ + /* the lowest possible. */ + spd_sup = 0; + spd_adv = 0; + switch (maxspeed) { + case SPEED_10000: + spd_sup |= SUPPORTED_10000baseT_Full; + spd_adv |= ADVERTISED_10000baseT_Full; + case SPEED_1000: + spd_sup |= SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full; + spd_adv |= ADVERTISED_1000baseT_Half | + ADVERTISED_1000baseT_Full; + case SPEED_100: + spd_sup |= SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full; + spd_adv |= ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full; + case SPEED_10: + spd_sup |= SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full; + spd_adv |= ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full; + break; + default: + spd_sup = SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full; + spd_adv = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full; + WARN_ON_ONCE(1); + } + ecmd->advertising = ADVERTISED_Autoneg | port_adv | spd_adv; + ecmd->supported = SUPPORTED_Autoneg | port_sup | spd_sup; +} + int qeth_core_ethtool_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) { struct qeth_card *card = netdev->ml_priv; enum qeth_link_types link_type; + struct carrier_info carrier_info; + u32 speed; if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan)) link_type = QETH_LINK_TYPE_10GBIT_ETH; @@ -4363,79 +5726,93 @@ int qeth_core_ethtool_get_settings(struct net_device *netdev, link_type = card->info.link_type; ecmd->transceiver = XCVR_INTERNAL; - ecmd->supported = SUPPORTED_Autoneg; - ecmd->advertising = ADVERTISED_Autoneg; ecmd->duplex = DUPLEX_FULL; ecmd->autoneg = AUTONEG_ENABLE; switch (link_type) { case QETH_LINK_TYPE_FAST_ETH: case QETH_LINK_TYPE_LANE_ETH100: - ecmd->supported |= SUPPORTED_10baseT_Half | - SUPPORTED_10baseT_Full | - SUPPORTED_100baseT_Half | - SUPPORTED_100baseT_Full | - SUPPORTED_TP; - ecmd->advertising |= ADVERTISED_10baseT_Half | - ADVERTISED_10baseT_Full | - ADVERTISED_100baseT_Half | - ADVERTISED_100baseT_Full | - ADVERTISED_TP; - ecmd->speed = SPEED_100; + qeth_set_ecmd_adv_sup(ecmd, SPEED_100, PORT_TP); + speed = SPEED_100; ecmd->port = PORT_TP; break; case QETH_LINK_TYPE_GBIT_ETH: case QETH_LINK_TYPE_LANE_ETH1000: - ecmd->supported |= SUPPORTED_10baseT_Half | - SUPPORTED_10baseT_Full | - SUPPORTED_100baseT_Half | - SUPPORTED_100baseT_Full | - SUPPORTED_1000baseT_Half | - SUPPORTED_1000baseT_Full | - SUPPORTED_FIBRE; - ecmd->advertising |= ADVERTISED_10baseT_Half | - ADVERTISED_10baseT_Full | - ADVERTISED_100baseT_Half | - ADVERTISED_100baseT_Full | - ADVERTISED_1000baseT_Half | - ADVERTISED_1000baseT_Full | - ADVERTISED_FIBRE; - ecmd->speed = SPEED_1000; + qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_FIBRE); + speed = SPEED_1000; ecmd->port = PORT_FIBRE; break; case QETH_LINK_TYPE_10GBIT_ETH: - ecmd->supported |= SUPPORTED_10baseT_Half | - SUPPORTED_10baseT_Full | - SUPPORTED_100baseT_Half | - SUPPORTED_100baseT_Full | - SUPPORTED_1000baseT_Half | - SUPPORTED_1000baseT_Full | - SUPPORTED_10000baseT_Full | - SUPPORTED_FIBRE; - ecmd->advertising |= ADVERTISED_10baseT_Half | - ADVERTISED_10baseT_Full | - ADVERTISED_100baseT_Half | - ADVERTISED_100baseT_Full | - ADVERTISED_1000baseT_Half | - ADVERTISED_1000baseT_Full | - ADVERTISED_10000baseT_Full | - ADVERTISED_FIBRE; - ecmd->speed = SPEED_10000; + qeth_set_ecmd_adv_sup(ecmd, SPEED_10000, PORT_FIBRE); + speed = SPEED_10000; ecmd->port = PORT_FIBRE; break; default: - ecmd->supported |= SUPPORTED_10baseT_Half | - SUPPORTED_10baseT_Full | - SUPPORTED_TP; - ecmd->advertising |= ADVERTISED_10baseT_Half | - ADVERTISED_10baseT_Full | - ADVERTISED_TP; - ecmd->speed = SPEED_10; + qeth_set_ecmd_adv_sup(ecmd, SPEED_10, PORT_TP); + speed = SPEED_10; ecmd->port = PORT_TP; } + ethtool_cmd_speed_set(ecmd, speed); + + /* Check if we can obtain more accurate information. */ + /* If QUERY_CARD_INFO command is not supported or fails, */ + /* just return the heuristics that was filled above. */ + if (qeth_query_card_info(card, &carrier_info) != 0) + return 0; + + netdev_dbg(netdev, + "card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n", + carrier_info.card_type, + carrier_info.port_mode, + carrier_info.port_speed); + + /* Update attributes for which we've obtained more authoritative */ + /* information, leave the rest the way they where filled above. */ + switch (carrier_info.card_type) { + case CARD_INFO_TYPE_1G_COPPER_A: + case CARD_INFO_TYPE_1G_COPPER_B: + qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_TP); + ecmd->port = PORT_TP; + break; + case CARD_INFO_TYPE_1G_FIBRE_A: + case CARD_INFO_TYPE_1G_FIBRE_B: + qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_FIBRE); + ecmd->port = PORT_FIBRE; + break; + case CARD_INFO_TYPE_10G_FIBRE_A: + case CARD_INFO_TYPE_10G_FIBRE_B: + qeth_set_ecmd_adv_sup(ecmd, SPEED_10000, PORT_FIBRE); + ecmd->port = PORT_FIBRE; + break; + } + + switch (carrier_info.port_mode) { + case CARD_INFO_PORTM_FULLDUPLEX: + ecmd->duplex = DUPLEX_FULL; + break; + case CARD_INFO_PORTM_HALFDUPLEX: + ecmd->duplex = DUPLEX_HALF; + break; + } + + switch (carrier_info.port_speed) { + case CARD_INFO_PORTS_10M: + speed = SPEED_10; + break; + case CARD_INFO_PORTS_100M: + speed = SPEED_100; + break; + case CARD_INFO_PORTS_1G: + speed = SPEED_1000; + break; + case CARD_INFO_PORTS_10G: + speed = SPEED_10000; + break; + } + ethtool_cmd_speed_set(ecmd, speed); return 0; } @@ -4445,62 +5822,69 @@ static int __init qeth_core_init(void) { int rc; - PRINT_INFO("loading core functions\n"); + pr_info("loading core functions\n"); INIT_LIST_HEAD(&qeth_core_card_list.list); + INIT_LIST_HEAD(&qeth_dbf_list); rwlock_init(&qeth_core_card_list.rwlock); + mutex_init(&qeth_mod_mutex); + + qeth_wq = create_singlethread_workqueue("qeth_wq"); rc = qeth_register_dbf_views(); if (rc) goto out_err; - rc = ccw_driver_register(&qeth_ccw_driver); - if (rc) - goto ccw_err; - rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver); - if (rc) - goto ccwgroup_err; - rc = driver_create_file(&qeth_core_ccwgroup_driver.driver, - &driver_attr_group); - if (rc) - goto driver_err; - qeth_core_root_dev = s390_root_dev_register("qeth"); - rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0; + qeth_core_root_dev = root_device_register("qeth"); + rc = PTR_ERR_OR_ZERO(qeth_core_root_dev); if (rc) goto register_err; - qeth_core_header_cache = kmem_cache_create("qeth_hdr", sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL); if (!qeth_core_header_cache) { rc = -ENOMEM; goto slab_err; } + qeth_qdio_outbuf_cache = kmem_cache_create("qeth_buf", + sizeof(struct qeth_qdio_out_buffer), 0, 0, NULL); + if (!qeth_qdio_outbuf_cache) { + rc = -ENOMEM; + goto cqslab_err; + } + rc = ccw_driver_register(&qeth_ccw_driver); + if (rc) + goto ccw_err; + qeth_core_ccwgroup_driver.driver.groups = qeth_drv_attr_groups; + rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver); + if (rc) + goto ccwgroup_err; return 0; -slab_err: - s390_root_dev_unregister(qeth_core_root_dev); -register_err: - driver_remove_file(&qeth_core_ccwgroup_driver.driver, - &driver_attr_group); -driver_err: - ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); + ccwgroup_err: ccw_driver_unregister(&qeth_ccw_driver); ccw_err: + kmem_cache_destroy(qeth_qdio_outbuf_cache); +cqslab_err: + kmem_cache_destroy(qeth_core_header_cache); +slab_err: + root_device_unregister(qeth_core_root_dev); +register_err: qeth_unregister_dbf_views(); out_err: - PRINT_ERR("Initialization failed with code %d\n", rc); + pr_err("Initializing the qeth device driver failed\n"); return rc; } static void __exit qeth_core_exit(void) { - s390_root_dev_unregister(qeth_core_root_dev); - driver_remove_file(&qeth_core_ccwgroup_driver.driver, - &driver_attr_group); + qeth_clear_dbf_list(); + destroy_workqueue(qeth_wq); ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); ccw_driver_unregister(&qeth_ccw_driver); + kmem_cache_destroy(qeth_qdio_outbuf_cache); kmem_cache_destroy(qeth_core_header_cache); + root_device_unregister(qeth_core_root_dev); qeth_unregister_dbf_views(); - PRINT_INFO("core functions removed\n"); + pr_info("core functions removed\n"); } module_init(qeth_core_init); diff --git a/drivers/s390/net/qeth_core_mpc.c b/drivers/s390/net/qeth_core_mpc.c index 06f4de1f050..7b55768a959 100644 --- a/drivers/s390/net/qeth_core_mpc.c +++ b/drivers/s390/net/qeth_core_mpc.c @@ -1,6 +1,4 @@ /* - * drivers/s390/net/qeth_core_mpc.c - * * Copyright IBM Corp. 2007 * Author(s): Frank Pavlic <fpavlic@de.ibm.com>, * Thomas Spatzier <tspat@de.ibm.com>, @@ -181,6 +179,8 @@ static struct ipa_rc_msg qeth_ipa_rc_msg[] = { {IPA_RC_L2_ADDR_TABLE_FULL, "Layer2 address table full"}, {IPA_RC_L2_DUP_LAYER3_MAC, "Duplicate with layer 3 MAC"}, {IPA_RC_L2_GMAC_NOT_FOUND, "GMAC not found"}, + {IPA_RC_L2_MAC_NOT_AUTH_BY_HYP, "L2 mac not authorized by hypervisor"}, + {IPA_RC_L2_MAC_NOT_AUTH_BY_ADP, "L2 mac not authorized by adapter"}, {IPA_RC_L2_MAC_NOT_FOUND, "L2 mac address not found"}, {IPA_RC_L2_INVALID_VLAN_ID, "L2 invalid vlan id"}, {IPA_RC_L2_DUP_VLAN_ID, "L2 duplicate vlan id"}, @@ -204,7 +204,9 @@ static struct ipa_rc_msg qeth_ipa_rc_msg[] = { {IPA_RC_INVALID_SETRTG_INDICATOR, "Invalid SETRTG indicator"}, {IPA_RC_MC_ADDR_ALREADY_DEFINED, "Multicast address already defined"}, {IPA_RC_LAN_OFFLINE, "STRTLAN_LAN_DISABLED - LAN offline"}, + {IPA_RC_VEPA_TO_VEB_TRANSITION, "Adj. switch disabled port mode RR"}, {IPA_RC_INVALID_IP_VERSION2, "Invalid IP version"}, + {IPA_RC_ENOMEM, "Memory problem"}, {IPA_RC_FFFF, "Unknown Error"} }; @@ -247,10 +249,12 @@ static struct ipa_cmd_names qeth_ipa_cmd_names[] = { {IPA_CMD_DELIP, "delip"}, {IPA_CMD_SETADAPTERPARMS, "setadapterparms"}, {IPA_CMD_SET_DIAG_ASS, "set_diag_ass"}, + {IPA_CMD_SETBRIDGEPORT, "set_bridge_port"}, {IPA_CMD_CREATE_ADDR, "create_addr"}, {IPA_CMD_DESTROY_ADDR, "destroy_addr"}, {IPA_CMD_REGISTER_LOCAL_ADDR, "register_local_addr"}, {IPA_CMD_UNREGISTER_LOCAL_ADDR, "unregister_local_addr"}, + {IPA_CMD_ADDRESS_CHANGE_NOTIF, "address_change_notification"}, {IPA_CMD_UNKNOWN, "unknown"}, }; diff --git a/drivers/s390/net/qeth_core_mpc.h b/drivers/s390/net/qeth_core_mpc.h index 18548822e37..cf6a90ed42a 100644 --- a/drivers/s390/net/qeth_core_mpc.h +++ b/drivers/s390/net/qeth_core_mpc.h @@ -1,6 +1,4 @@ /* - * drivers/s390/net/qeth_core_mpc.h - * * Copyright IBM Corp. 2007 * Author(s): Frank Pavlic <fpavlic@de.ibm.com>, * Thomas Spatzier <tspat@de.ibm.com>, @@ -48,9 +46,11 @@ extern unsigned char IPA_PDU_HEADER[]; enum qeth_card_types { QETH_CARD_TYPE_UNKNOWN = 0, - QETH_CARD_TYPE_OSAE = 10, - QETH_CARD_TYPE_IQD = 1234, - QETH_CARD_TYPE_OSN = 11, + QETH_CARD_TYPE_OSD = 1, + QETH_CARD_TYPE_IQD = 5, + QETH_CARD_TYPE_OSN = 6, + QETH_CARD_TYPE_OSM = 3, + QETH_CARD_TYPE_OSX = 2, }; #define QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE 0x18 @@ -68,24 +68,6 @@ enum qeth_link_types { QETH_LINK_TYPE_ATM_NATIVE = 0x90, }; -enum qeth_tr_macaddr_modes { - QETH_TR_MACADDR_NONCANONICAL = 0, - QETH_TR_MACADDR_CANONICAL = 1, -}; - -enum qeth_tr_broadcast_modes { - QETH_TR_BROADCAST_ALLRINGS = 0, - QETH_TR_BROADCAST_LOCAL = 1, -}; - -/* these values match CHECKSUM_* in include/linux/skbuff.h */ -enum qeth_checksum_types { - SW_CHECKSUMMING = 0, /* TODO: set to bit flag used in IPA Command */ - HW_CHECKSUMMING = 1, - NO_CHECKSUMMING = 2, -}; -#define QETH_CHECKSUM_DEFAULT SW_CHECKSUMMING - /* * Routing stuff */ @@ -122,10 +104,12 @@ enum qeth_ipa_cmds { IPA_CMD_DELIP = 0xb7, IPA_CMD_SETADAPTERPARMS = 0xb8, IPA_CMD_SET_DIAG_ASS = 0xb9, + IPA_CMD_SETBRIDGEPORT = 0xbe, IPA_CMD_CREATE_ADDR = 0xc3, IPA_CMD_DESTROY_ADDR = 0xc4, IPA_CMD_REGISTER_LOCAL_ADDR = 0xd1, IPA_CMD_UNREGISTER_LOCAL_ADDR = 0xd2, + IPA_CMD_ADDRESS_CHANGE_NOTIF = 0xd3, IPA_CMD_UNKNOWN = 0x00 }; @@ -156,6 +140,8 @@ enum qeth_ipa_return_codes { IPA_RC_IP_TABLE_FULL = 0x0002, IPA_RC_UNKNOWN_ERROR = 0x0003, IPA_RC_UNSUPPORTED_COMMAND = 0x0004, + IPA_RC_TRACE_ALREADY_ACTIVE = 0x0005, + IPA_RC_INVALID_FORMAT = 0x0006, IPA_RC_DUP_IPV6_REMOTE = 0x0008, IPA_RC_DUP_IPV6_HOME = 0x0010, IPA_RC_UNREGISTERED_ADDR = 0x0011, @@ -168,6 +154,8 @@ enum qeth_ipa_return_codes { IPA_RC_L2_ADDR_TABLE_FULL = 0x2006, IPA_RC_L2_DUP_LAYER3_MAC = 0x200a, IPA_RC_L2_GMAC_NOT_FOUND = 0x200b, + IPA_RC_L2_MAC_NOT_AUTH_BY_HYP = 0x200c, + IPA_RC_L2_MAC_NOT_AUTH_BY_ADP = 0x200d, IPA_RC_L2_MAC_NOT_FOUND = 0x2010, IPA_RC_L2_INVALID_VLAN_ID = 0x2015, IPA_RC_L2_DUP_VLAN_ID = 0x2016, @@ -191,9 +179,16 @@ enum qeth_ipa_return_codes { IPA_RC_INVALID_SETRTG_INDICATOR = 0xe012, IPA_RC_MC_ADDR_ALREADY_DEFINED = 0xe013, IPA_RC_LAN_OFFLINE = 0xe080, + IPA_RC_VEPA_TO_VEB_TRANSITION = 0xe090, IPA_RC_INVALID_IP_VERSION2 = 0xf001, + IPA_RC_ENOMEM = 0xfffe, IPA_RC_FFFF = 0xffff }; +/* for DELIP */ +#define IPA_RC_IP_ADDRESS_NOT_DEFINED IPA_RC_PRIMARY_ALREADY_DEFINED +/* for SET_DIAGNOSTIC_ASSIST */ +#define IPA_RC_INVALID_SUBCMD IPA_RC_IP_TABLE_FULL +#define IPA_RC_HARDWARE_AUTH_ERROR IPA_RC_UNKNOWN_ERROR /* IPA function flags; each flag marks availability of respective function */ enum qeth_ipa_funcs { @@ -232,18 +227,21 @@ enum qeth_ipa_setdelip_flags { /* SETADAPTER IPA Command: ****************************************************/ enum qeth_ipa_setadp_cmd { - IPA_SETADP_QUERY_COMMANDS_SUPPORTED = 0x0001, - IPA_SETADP_ALTER_MAC_ADDRESS = 0x0002, - IPA_SETADP_ADD_DELETE_GROUP_ADDRESS = 0x0004, - IPA_SETADP_ADD_DELETE_FUNCTIONAL_ADDR = 0x0008, - IPA_SETADP_SET_ADDRESSING_MODE = 0x0010, - IPA_SETADP_SET_CONFIG_PARMS = 0x0020, - IPA_SETADP_SET_CONFIG_PARMS_EXTENDED = 0x0040, - IPA_SETADP_SET_BROADCAST_MODE = 0x0080, - IPA_SETADP_SEND_OSA_MESSAGE = 0x0100, - IPA_SETADP_SET_SNMP_CONTROL = 0x0200, - IPA_SETADP_QUERY_CARD_INFO = 0x0400, - IPA_SETADP_SET_PROMISC_MODE = 0x0800, + IPA_SETADP_QUERY_COMMANDS_SUPPORTED = 0x00000001L, + IPA_SETADP_ALTER_MAC_ADDRESS = 0x00000002L, + IPA_SETADP_ADD_DELETE_GROUP_ADDRESS = 0x00000004L, + IPA_SETADP_ADD_DELETE_FUNCTIONAL_ADDR = 0x00000008L, + IPA_SETADP_SET_ADDRESSING_MODE = 0x00000010L, + IPA_SETADP_SET_CONFIG_PARMS = 0x00000020L, + IPA_SETADP_SET_CONFIG_PARMS_EXTENDED = 0x00000040L, + IPA_SETADP_SET_BROADCAST_MODE = 0x00000080L, + IPA_SETADP_SEND_OSA_MESSAGE = 0x00000100L, + IPA_SETADP_SET_SNMP_CONTROL = 0x00000200L, + IPA_SETADP_QUERY_CARD_INFO = 0x00000400L, + IPA_SETADP_SET_PROMISC_MODE = 0x00000800L, + IPA_SETADP_SET_DIAG_ASSIST = 0x00002000L, + IPA_SETADP_SET_ACCESS_CONTROL = 0x00010000L, + IPA_SETADP_QUERY_OAT = 0x00080000L, }; enum qeth_ipa_mac_ops { CHANGE_ADDR_READ_MAC = 0, @@ -262,6 +260,40 @@ enum qeth_ipa_promisc_modes { SET_PROMISC_MODE_OFF = 0, SET_PROMISC_MODE_ON = 1, }; +enum qeth_ipa_isolation_modes { + ISOLATION_MODE_NONE = 0x00000000L, + ISOLATION_MODE_FWD = 0x00000001L, + ISOLATION_MODE_DROP = 0x00000002L, +}; +enum qeth_ipa_set_access_mode_rc { + SET_ACCESS_CTRL_RC_SUCCESS = 0x0000, + SET_ACCESS_CTRL_RC_NOT_SUPPORTED = 0x0004, + SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED = 0x0008, + SET_ACCESS_CTRL_RC_ALREADY_ISOLATED = 0x0010, + SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER = 0x0014, + SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF = 0x0018, + SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED = 0x0022, + SET_ACCESS_CTRL_RC_REFLREL_FAILED = 0x0024, + SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED = 0x0028, +}; +enum qeth_card_info_card_type { + CARD_INFO_TYPE_1G_COPPER_A = 0x61, + CARD_INFO_TYPE_1G_FIBRE_A = 0x71, + CARD_INFO_TYPE_10G_FIBRE_A = 0x91, + CARD_INFO_TYPE_1G_COPPER_B = 0xb1, + CARD_INFO_TYPE_1G_FIBRE_B = 0xa1, + CARD_INFO_TYPE_10G_FIBRE_B = 0xc1, +}; +enum qeth_card_info_port_mode { + CARD_INFO_PORTM_HALFDUPLEX = 0x0002, + CARD_INFO_PORTM_FULLDUPLEX = 0x0003, +}; +enum qeth_card_info_port_speed { + CARD_INFO_PORTS_10M = 0x00000005, + CARD_INFO_PORTS_100M = 0x00000006, + CARD_INFO_PORTS_1G = 0x00000007, + CARD_INFO_PORTS_10G = 0x00000008, +}; /* (SET)DELIP(M) IPA stuff ***************************************************/ struct qeth_ipacmd_setdelip4 { @@ -306,7 +338,7 @@ struct qeth_arp_query_data { __u16 request_bits; __u16 reply_bits; __u32 no_entries; - char data; + char data; /* only for replies */ } __attribute__((packed)); /* used as parameter for arp_query reply */ @@ -374,6 +406,31 @@ struct qeth_snmp_ureq { struct qeth_snmp_cmd cmd; } __attribute__((packed)); +/* SET_ACCESS_CONTROL: same format for request and reply */ +struct qeth_set_access_ctrl { + __u32 subcmd_code; + __u8 reserved[8]; +} __attribute__((packed)); + +struct qeth_query_oat { + __u32 subcmd_code; + __u8 reserved[12]; +} __packed; + +struct qeth_qoat_priv { + __u32 buffer_len; + __u32 response_len; + char *buffer; +}; + +struct qeth_query_card_info { + __u8 card_type; + __u8 reserved1; + __u16 port_mode; + __u32 port_speed; + __u32 reserved2; +}; + struct qeth_ipacmd_setadpparms_hdr { __u32 supp_hw_cmds; __u32 reserved1; @@ -392,6 +449,9 @@ struct qeth_ipacmd_setadpparms { struct qeth_query_cmds_supp query_cmds_supp; struct qeth_change_addr change_addr; struct qeth_snmp_cmd snmp; + struct qeth_set_access_ctrl set_access_ctrl; + struct qeth_query_oat query_oat; + struct qeth_query_card_info card_info; __u32 mode; } data; } __attribute__ ((packed)); @@ -401,6 +461,165 @@ struct qeth_create_destroy_address { __u8 unique_id[8]; } __attribute__ ((packed)); +/* SET DIAGNOSTIC ASSIST IPA Command: *************************************/ + +enum qeth_diags_cmds { + QETH_DIAGS_CMD_QUERY = 0x0001, + QETH_DIAGS_CMD_TRAP = 0x0002, + QETH_DIAGS_CMD_TRACE = 0x0004, + QETH_DIAGS_CMD_NOLOG = 0x0008, + QETH_DIAGS_CMD_DUMP = 0x0010, +}; + +enum qeth_diags_trace_types { + QETH_DIAGS_TYPE_HIPERSOCKET = 0x02, +}; + +enum qeth_diags_trace_cmds { + QETH_DIAGS_CMD_TRACE_ENABLE = 0x0001, + QETH_DIAGS_CMD_TRACE_DISABLE = 0x0002, + QETH_DIAGS_CMD_TRACE_MODIFY = 0x0004, + QETH_DIAGS_CMD_TRACE_REPLACE = 0x0008, + QETH_DIAGS_CMD_TRACE_QUERY = 0x0010, +}; + +enum qeth_diags_trap_action { + QETH_DIAGS_TRAP_ARM = 0x01, + QETH_DIAGS_TRAP_DISARM = 0x02, + QETH_DIAGS_TRAP_CAPTURE = 0x04, +}; + +struct qeth_ipacmd_diagass { + __u32 host_tod2; + __u32:32; + __u16 subcmd_len; + __u16:16; + __u32 subcmd; + __u8 type; + __u8 action; + __u16 options; + __u32 ext; + __u8 cdata[64]; +} __attribute__ ((packed)); + +/* SETBRIDGEPORT IPA Command: *********************************************/ +enum qeth_ipa_sbp_cmd { + IPA_SBP_QUERY_COMMANDS_SUPPORTED = 0x00000000L, + IPA_SBP_RESET_BRIDGE_PORT_ROLE = 0x00000001L, + IPA_SBP_SET_PRIMARY_BRIDGE_PORT = 0x00000002L, + IPA_SBP_SET_SECONDARY_BRIDGE_PORT = 0x00000004L, + IPA_SBP_QUERY_BRIDGE_PORTS = 0x00000008L, + IPA_SBP_BRIDGE_PORT_STATE_CHANGE = 0x00000010L, +}; + +struct net_if_token { + __u16 devnum; + __u8 cssid; + __u8 iid; + __u8 ssid; + __u8 chpid; + __u16 chid; +} __packed; + +struct mac_addr_lnid { + __u8 mac[6]; + __u16 lnid; +} __packed; + +struct qeth_ipacmd_sbp_hdr { + __u32 supported_sbp_cmds; + __u32 enabled_sbp_cmds; + __u16 cmdlength; + __u16 reserved1; + __u32 command_code; + __u16 return_code; + __u8 used_total; + __u8 seq_no; + __u32 reserved2; +} __packed; + +struct qeth_sbp_query_cmds_supp { + __u32 supported_cmds; + __u32 reserved; +} __packed; + +struct qeth_sbp_reset_role { +} __packed; + +struct qeth_sbp_set_primary { + struct net_if_token token; +} __packed; + +struct qeth_sbp_set_secondary { +} __packed; + +struct qeth_sbp_port_entry { + __u8 role; + __u8 state; + __u8 reserved1; + __u8 reserved2; + struct net_if_token token; +} __packed; + +struct qeth_sbp_query_ports { + __u8 primary_bp_supported; + __u8 secondary_bp_supported; + __u8 num_entries; + __u8 entry_length; + struct qeth_sbp_port_entry entry[]; +} __packed; + +struct qeth_sbp_state_change { + __u8 primary_bp_supported; + __u8 secondary_bp_supported; + __u8 num_entries; + __u8 entry_length; + struct qeth_sbp_port_entry entry[]; +} __packed; + +struct qeth_ipacmd_setbridgeport { + struct qeth_ipacmd_sbp_hdr hdr; + union { + struct qeth_sbp_query_cmds_supp query_cmds_supp; + struct qeth_sbp_reset_role reset_role; + struct qeth_sbp_set_primary set_primary; + struct qeth_sbp_set_secondary set_secondary; + struct qeth_sbp_query_ports query_ports; + struct qeth_sbp_state_change state_change; + } data; +} __packed; + +/* ADDRESS_CHANGE_NOTIFICATION adapter-initiated "command" *******************/ +/* Bitmask for entry->change_code. Both bits may be raised. */ +enum qeth_ipa_addr_change_code { + IPA_ADDR_CHANGE_CODE_VLANID = 0x01, + IPA_ADDR_CHANGE_CODE_MACADDR = 0x02, + IPA_ADDR_CHANGE_CODE_REMOVAL = 0x80, /* else addition */ +}; +enum qeth_ipa_addr_change_retcode { + IPA_ADDR_CHANGE_RETCODE_OK = 0x0000, + IPA_ADDR_CHANGE_RETCODE_LOSTEVENTS = 0x0010, +}; +enum qeth_ipa_addr_change_lostmask { + IPA_ADDR_CHANGE_MASK_OVERFLOW = 0x01, + IPA_ADDR_CHANGE_MASK_STATECHANGE = 0x02, +}; + +struct qeth_ipacmd_addr_change_entry { + struct net_if_token token; + struct mac_addr_lnid addr_lnid; + __u8 change_code; + __u8 reserved1; + __u16 reserved2; +} __packed; + +struct qeth_ipacmd_addr_change { + __u8 lost_event_mask; + __u8 reserved; + __u16 num_entries; + struct qeth_ipacmd_addr_change_entry entry[]; +} __packed; + /* Header for each IPA command */ struct qeth_ipacmd_hdr { __u8 command; @@ -429,6 +648,9 @@ struct qeth_ipa_cmd { struct qeth_create_destroy_address create_destroy_addr; struct qeth_ipacmd_setadpparms setadapterparms; struct qeth_set_routing setrtg; + struct qeth_ipacmd_diagass diagass; + struct qeth_ipacmd_setbridgeport sbp; + struct qeth_ipacmd_addr_change addrchange; } data; } __attribute__ ((packed)); @@ -446,7 +668,6 @@ enum qeth_ipa_arp_return_codes { QETH_IPA_ARP_RC_Q_NO_DATA = 0x0008, }; - extern char *qeth_get_ipa_msg(enum qeth_ipa_return_codes rc); extern char *qeth_get_ipa_cmd_name(enum qeth_ipa_cmds cmd); @@ -505,7 +726,7 @@ extern unsigned char ULP_ENABLE[]; (PDU_ENCAPSULATION(buffer) + 0x17) #define QETH_ULP_ENABLE_RESP_LINK_TYPE(buffer) \ (PDU_ENCAPSULATION(buffer) + 0x2b) -/* Layer 2 defintions */ +/* Layer 2 definitions */ #define QETH_PROT_LAYER2 0x08 #define QETH_PROT_TCPIP 0x03 #define QETH_PROT_OSN2 0x0a @@ -549,6 +770,9 @@ extern unsigned char IDX_ACTIVATE_WRITE[]; #define QETH_IS_IDX_ACT_POS_REPLY(buffer) (((buffer)[0x08] & 3) == 2) #define QETH_IDX_REPLY_LEVEL(buffer) (buffer + 0x12) #define QETH_IDX_ACT_CAUSE_CODE(buffer) (buffer)[0x09] +#define QETH_IDX_ACT_ERR_EXCL 0x19 +#define QETH_IDX_ACT_ERR_AUTH 0x1E +#define QETH_IDX_ACT_ERR_AUTH_USER 0x20 #define PDU_ENCAPSULATION(buffer) \ (buffer + *(buffer + (*(buffer + 0x0b)) + \ diff --git a/drivers/s390/net/qeth_core_offl.c b/drivers/s390/net/qeth_core_offl.c deleted file mode 100644 index 452874e8974..00000000000 --- a/drivers/s390/net/qeth_core_offl.c +++ /dev/null @@ -1,699 +0,0 @@ -/* - * drivers/s390/net/qeth_core_offl.c - * - * Copyright IBM Corp. 2007 - * Author(s): Thomas Spatzier <tspat@de.ibm.com>, - * Frank Blaschka <frank.blaschka@de.ibm.com> - */ - -#include <linux/errno.h> -#include <linux/ip.h> -#include <linux/inetdevice.h> -#include <linux/netdevice.h> -#include <linux/kernel.h> -#include <linux/tcp.h> -#include <net/tcp.h> -#include <linux/skbuff.h> - -#include <net/ip.h> -#include <net/ip6_checksum.h> - -#include "qeth_core.h" -#include "qeth_core_mpc.h" -#include "qeth_core_offl.h" - -int qeth_eddp_check_buffers_for_context(struct qeth_qdio_out_q *queue, - struct qeth_eddp_context *ctx) -{ - int index = queue->next_buf_to_fill; - int elements_needed = ctx->num_elements; - int elements_in_buffer; - int skbs_in_buffer; - int buffers_needed = 0; - - QETH_DBF_TEXT(TRACE, 5, "eddpcbfc"); - while (elements_needed > 0) { - buffers_needed++; - if (atomic_read(&queue->bufs[index].state) != - QETH_QDIO_BUF_EMPTY) - return -EBUSY; - - elements_in_buffer = QETH_MAX_BUFFER_ELEMENTS(queue->card) - - queue->bufs[index].next_element_to_fill; - skbs_in_buffer = elements_in_buffer / ctx->elements_per_skb; - elements_needed -= skbs_in_buffer * ctx->elements_per_skb; - index = (index + 1) % QDIO_MAX_BUFFERS_PER_Q; - } - return buffers_needed; -} - -static void qeth_eddp_free_context(struct qeth_eddp_context *ctx) -{ - int i; - - QETH_DBF_TEXT(TRACE, 5, "eddpfctx"); - for (i = 0; i < ctx->num_pages; ++i) - free_page((unsigned long)ctx->pages[i]); - kfree(ctx->pages); - kfree(ctx->elements); - kfree(ctx); -} - - -static void qeth_eddp_get_context(struct qeth_eddp_context *ctx) -{ - atomic_inc(&ctx->refcnt); -} - -void qeth_eddp_put_context(struct qeth_eddp_context *ctx) -{ - if (atomic_dec_return(&ctx->refcnt) == 0) - qeth_eddp_free_context(ctx); -} -EXPORT_SYMBOL_GPL(qeth_eddp_put_context); - -void qeth_eddp_buf_release_contexts(struct qeth_qdio_out_buffer *buf) -{ - struct qeth_eddp_context_reference *ref; - - QETH_DBF_TEXT(TRACE, 6, "eddprctx"); - while (!list_empty(&buf->ctx_list)) { - ref = list_entry(buf->ctx_list.next, - struct qeth_eddp_context_reference, list); - qeth_eddp_put_context(ref->ctx); - list_del(&ref->list); - kfree(ref); - } -} - -static int qeth_eddp_buf_ref_context(struct qeth_qdio_out_buffer *buf, - struct qeth_eddp_context *ctx) -{ - struct qeth_eddp_context_reference *ref; - - QETH_DBF_TEXT(TRACE, 6, "eddprfcx"); - ref = kmalloc(sizeof(struct qeth_eddp_context_reference), GFP_ATOMIC); - if (ref == NULL) - return -ENOMEM; - qeth_eddp_get_context(ctx); - ref->ctx = ctx; - list_add_tail(&ref->list, &buf->ctx_list); - return 0; -} - -int qeth_eddp_fill_buffer(struct qeth_qdio_out_q *queue, - struct qeth_eddp_context *ctx, int index) -{ - struct qeth_qdio_out_buffer *buf = NULL; - struct qdio_buffer *buffer; - int elements = ctx->num_elements; - int element = 0; - int flush_cnt = 0; - int must_refcnt = 1; - int i; - - QETH_DBF_TEXT(TRACE, 5, "eddpfibu"); - while (elements > 0) { - buf = &queue->bufs[index]; - if (atomic_read(&buf->state) != QETH_QDIO_BUF_EMPTY) { - /* normally this should not happen since we checked for - * available elements in qeth_check_elements_for_context - */ - if (element == 0) - return -EBUSY; - else { - QETH_DBF_MESSAGE(2, "could only partially fill" - "eddp buffer!\n"); - goto out; - } - } - /* check if the whole next skb fits into current buffer */ - if ((QETH_MAX_BUFFER_ELEMENTS(queue->card) - - buf->next_element_to_fill) - < ctx->elements_per_skb){ - /* no -> go to next buffer */ - atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); - index = (index + 1) % QDIO_MAX_BUFFERS_PER_Q; - flush_cnt++; - /* new buffer, so we have to add ctx to buffer'ctx_list - * and increment ctx's refcnt */ - must_refcnt = 1; - continue; - } - if (must_refcnt) { - must_refcnt = 0; - if (qeth_eddp_buf_ref_context(buf, ctx)) { - goto out_check; - } - } - buffer = buf->buffer; - /* fill one skb into buffer */ - for (i = 0; i < ctx->elements_per_skb; ++i) { - if (ctx->elements[element].length != 0) { - buffer->element[buf->next_element_to_fill]. - addr = ctx->elements[element].addr; - buffer->element[buf->next_element_to_fill]. - length = ctx->elements[element].length; - buffer->element[buf->next_element_to_fill]. - flags = ctx->elements[element].flags; - buf->next_element_to_fill++; - } - element++; - elements--; - } - } -out_check: - if (!queue->do_pack) { - QETH_DBF_TEXT(TRACE, 6, "fillbfnp"); - /* set state to PRIMED -> will be flushed */ - if (buf->next_element_to_fill > 0) { - atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); - flush_cnt++; - } - } else { - if (queue->card->options.performance_stats) - queue->card->perf_stats.skbs_sent_pack++; - QETH_DBF_TEXT(TRACE, 6, "fillbfpa"); - if (buf->next_element_to_fill >= - QETH_MAX_BUFFER_ELEMENTS(queue->card)) { - /* - * packed buffer if full -> set state PRIMED - * -> will be flushed - */ - atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); - flush_cnt++; - } - } -out: - return flush_cnt; -} - -static void qeth_eddp_create_segment_hdrs(struct qeth_eddp_context *ctx, - struct qeth_eddp_data *eddp, int data_len) -{ - u8 *page; - int page_remainder; - int page_offset; - int pkt_len; - struct qeth_eddp_element *element; - - QETH_DBF_TEXT(TRACE, 5, "eddpcrsh"); - page = ctx->pages[ctx->offset >> PAGE_SHIFT]; - page_offset = ctx->offset % PAGE_SIZE; - element = &ctx->elements[ctx->num_elements]; - pkt_len = eddp->nhl + eddp->thl + data_len; - /* FIXME: layer2 and VLAN !!! */ - if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2) - pkt_len += ETH_HLEN; - if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q)) - pkt_len += VLAN_HLEN; - /* does complete packet fit in current page ? */ - page_remainder = PAGE_SIZE - page_offset; - if (page_remainder < (sizeof(struct qeth_hdr) + pkt_len)) { - /* no -> go to start of next page */ - ctx->offset += page_remainder; - page = ctx->pages[ctx->offset >> PAGE_SHIFT]; - page_offset = 0; - } - memcpy(page + page_offset, &eddp->qh, sizeof(struct qeth_hdr)); - element->addr = page + page_offset; - element->length = sizeof(struct qeth_hdr); - ctx->offset += sizeof(struct qeth_hdr); - page_offset += sizeof(struct qeth_hdr); - /* add mac header (?) */ - if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2) { - memcpy(page + page_offset, &eddp->mac, ETH_HLEN); - element->length += ETH_HLEN; - ctx->offset += ETH_HLEN; - page_offset += ETH_HLEN; - } - /* add VLAN tag */ - if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q)) { - memcpy(page + page_offset, &eddp->vlan, VLAN_HLEN); - element->length += VLAN_HLEN; - ctx->offset += VLAN_HLEN; - page_offset += VLAN_HLEN; - } - /* add network header */ - memcpy(page + page_offset, (u8 *)&eddp->nh, eddp->nhl); - element->length += eddp->nhl; - eddp->nh_in_ctx = page + page_offset; - ctx->offset += eddp->nhl; - page_offset += eddp->nhl; - /* add transport header */ - memcpy(page + page_offset, (u8 *)&eddp->th, eddp->thl); - element->length += eddp->thl; - eddp->th_in_ctx = page + page_offset; - ctx->offset += eddp->thl; -} - -static void qeth_eddp_copy_data_tcp(char *dst, struct qeth_eddp_data *eddp, - int len, __wsum *hcsum) -{ - struct skb_frag_struct *frag; - int left_in_frag; - int copy_len; - u8 *src; - - QETH_DBF_TEXT(TRACE, 5, "eddpcdtc"); - if (skb_shinfo(eddp->skb)->nr_frags == 0) { - skb_copy_from_linear_data_offset(eddp->skb, eddp->skb_offset, - dst, len); - *hcsum = csum_partial(eddp->skb->data + eddp->skb_offset, len, - *hcsum); - eddp->skb_offset += len; - } else { - while (len > 0) { - if (eddp->frag < 0) { - /* we're in skb->data */ - left_in_frag = (eddp->skb->len - - eddp->skb->data_len) - - eddp->skb_offset; - src = eddp->skb->data + eddp->skb_offset; - } else { - frag = &skb_shinfo(eddp->skb)->frags[ - eddp->frag]; - left_in_frag = frag->size - eddp->frag_offset; - src = (u8 *)((page_to_pfn(frag->page) << - PAGE_SHIFT) + frag->page_offset + - eddp->frag_offset); - } - if (left_in_frag <= 0) { - eddp->frag++; - eddp->frag_offset = 0; - continue; - } - copy_len = min(left_in_frag, len); - memcpy(dst, src, copy_len); - *hcsum = csum_partial(src, copy_len, *hcsum); - dst += copy_len; - eddp->frag_offset += copy_len; - eddp->skb_offset += copy_len; - len -= copy_len; - } - } -} - -static void qeth_eddp_create_segment_data_tcp(struct qeth_eddp_context *ctx, - struct qeth_eddp_data *eddp, int data_len, __wsum hcsum) -{ - u8 *page; - int page_remainder; - int page_offset; - struct qeth_eddp_element *element; - int first_lap = 1; - - QETH_DBF_TEXT(TRACE, 5, "eddpcsdt"); - page = ctx->pages[ctx->offset >> PAGE_SHIFT]; - page_offset = ctx->offset % PAGE_SIZE; - element = &ctx->elements[ctx->num_elements]; - while (data_len) { - page_remainder = PAGE_SIZE - page_offset; - if (page_remainder < data_len) { - qeth_eddp_copy_data_tcp(page + page_offset, eddp, - page_remainder, &hcsum); - element->length += page_remainder; - if (first_lap) - element->flags = SBAL_FLAGS_FIRST_FRAG; - else - element->flags = SBAL_FLAGS_MIDDLE_FRAG; - ctx->num_elements++; - element++; - data_len -= page_remainder; - ctx->offset += page_remainder; - page = ctx->pages[ctx->offset >> PAGE_SHIFT]; - page_offset = 0; - element->addr = page + page_offset; - } else { - qeth_eddp_copy_data_tcp(page + page_offset, eddp, - data_len, &hcsum); - element->length += data_len; - if (!first_lap) - element->flags = SBAL_FLAGS_LAST_FRAG; - ctx->num_elements++; - ctx->offset += data_len; - data_len = 0; - } - first_lap = 0; - } - ((struct tcphdr *)eddp->th_in_ctx)->check = csum_fold(hcsum); -} - -static __wsum qeth_eddp_check_tcp4_hdr(struct qeth_eddp_data *eddp, - int data_len) -{ - __wsum phcsum; /* pseudo header checksum */ - - QETH_DBF_TEXT(TRACE, 5, "eddpckt4"); - eddp->th.tcp.h.check = 0; - /* compute pseudo header checksum */ - phcsum = csum_tcpudp_nofold(eddp->nh.ip4.h.saddr, eddp->nh.ip4.h.daddr, - eddp->thl + data_len, IPPROTO_TCP, 0); - /* compute checksum of tcp header */ - return csum_partial((u8 *)&eddp->th, eddp->thl, phcsum); -} - -static __wsum qeth_eddp_check_tcp6_hdr(struct qeth_eddp_data *eddp, - int data_len) -{ - __be32 proto; - __wsum phcsum; /* pseudo header checksum */ - - QETH_DBF_TEXT(TRACE, 5, "eddpckt6"); - eddp->th.tcp.h.check = 0; - /* compute pseudo header checksum */ - phcsum = csum_partial((u8 *)&eddp->nh.ip6.h.saddr, - sizeof(struct in6_addr), 0); - phcsum = csum_partial((u8 *)&eddp->nh.ip6.h.daddr, - sizeof(struct in6_addr), phcsum); - proto = htonl(IPPROTO_TCP); - phcsum = csum_partial((u8 *)&proto, sizeof(u32), phcsum); - return phcsum; -} - -static struct qeth_eddp_data *qeth_eddp_create_eddp_data(struct qeth_hdr *qh, - u8 *nh, u8 nhl, u8 *th, u8 thl) -{ - struct qeth_eddp_data *eddp; - - QETH_DBF_TEXT(TRACE, 5, "eddpcrda"); - eddp = kzalloc(sizeof(struct qeth_eddp_data), GFP_ATOMIC); - if (eddp) { - eddp->nhl = nhl; - eddp->thl = thl; - memcpy(&eddp->qh, qh, sizeof(struct qeth_hdr)); - memcpy(&eddp->nh, nh, nhl); - memcpy(&eddp->th, th, thl); - eddp->frag = -1; /* initially we're in skb->data */ - } - return eddp; -} - -static void __qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx, - struct qeth_eddp_data *eddp) -{ - struct tcphdr *tcph; - int data_len; - __wsum hcsum; - - QETH_DBF_TEXT(TRACE, 5, "eddpftcp"); - eddp->skb_offset = sizeof(struct qeth_hdr) + eddp->nhl + eddp->thl; - if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2) { - eddp->skb_offset += sizeof(struct ethhdr); - if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q)) - eddp->skb_offset += VLAN_HLEN; - } - tcph = tcp_hdr(eddp->skb); - while (eddp->skb_offset < eddp->skb->len) { - data_len = min((int)skb_shinfo(eddp->skb)->gso_size, - (int)(eddp->skb->len - eddp->skb_offset)); - /* prepare qdio hdr */ - if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2) { - eddp->qh.hdr.l2.pkt_length = data_len + ETH_HLEN + - eddp->nhl + eddp->thl; - if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q)) - eddp->qh.hdr.l2.pkt_length += VLAN_HLEN; - } else - eddp->qh.hdr.l3.length = data_len + eddp->nhl + - eddp->thl; - /* prepare ip hdr */ - if (eddp->skb->protocol == htons(ETH_P_IP)) { - eddp->nh.ip4.h.tot_len = htons(data_len + eddp->nhl + - eddp->thl); - eddp->nh.ip4.h.check = 0; - eddp->nh.ip4.h.check = - ip_fast_csum((u8 *)&eddp->nh.ip4.h, - eddp->nh.ip4.h.ihl); - } else - eddp->nh.ip6.h.payload_len = htons(data_len + - eddp->thl); - /* prepare tcp hdr */ - if (data_len == (eddp->skb->len - eddp->skb_offset)) { - /* last segment -> set FIN and PSH flags */ - eddp->th.tcp.h.fin = tcph->fin; - eddp->th.tcp.h.psh = tcph->psh; - } - if (eddp->skb->protocol == htons(ETH_P_IP)) - hcsum = qeth_eddp_check_tcp4_hdr(eddp, data_len); - else - hcsum = qeth_eddp_check_tcp6_hdr(eddp, data_len); - /* fill the next segment into the context */ - qeth_eddp_create_segment_hdrs(ctx, eddp, data_len); - qeth_eddp_create_segment_data_tcp(ctx, eddp, data_len, hcsum); - if (eddp->skb_offset >= eddp->skb->len) - break; - /* prepare headers for next round */ - if (eddp->skb->protocol == htons(ETH_P_IP)) - eddp->nh.ip4.h.id = htons(ntohs(eddp->nh.ip4.h.id) + 1); - eddp->th.tcp.h.seq = htonl(ntohl(eddp->th.tcp.h.seq) + - data_len); - } -} - -static int qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx, - struct sk_buff *skb, struct qeth_hdr *qhdr) -{ - struct qeth_eddp_data *eddp = NULL; - - QETH_DBF_TEXT(TRACE, 5, "eddpficx"); - /* create our segmentation headers and copy original headers */ - if (skb->protocol == htons(ETH_P_IP)) - eddp = qeth_eddp_create_eddp_data(qhdr, - skb_network_header(skb), - ip_hdrlen(skb), - skb_transport_header(skb), - tcp_hdrlen(skb)); - else - eddp = qeth_eddp_create_eddp_data(qhdr, - skb_network_header(skb), - sizeof(struct ipv6hdr), - skb_transport_header(skb), - tcp_hdrlen(skb)); - - if (eddp == NULL) { - QETH_DBF_TEXT(TRACE, 2, "eddpfcnm"); - return -ENOMEM; - } - if (qhdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2) { - skb_set_mac_header(skb, sizeof(struct qeth_hdr)); - memcpy(&eddp->mac, eth_hdr(skb), ETH_HLEN); - if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q)) { - eddp->vlan[0] = skb->protocol; - eddp->vlan[1] = htons(vlan_tx_tag_get(skb)); - } - } - /* the next flags will only be set on the last segment */ - eddp->th.tcp.h.fin = 0; - eddp->th.tcp.h.psh = 0; - eddp->skb = skb; - /* begin segmentation and fill context */ - __qeth_eddp_fill_context_tcp(ctx, eddp); - kfree(eddp); - return 0; -} - -static void qeth_eddp_calc_num_pages(struct qeth_eddp_context *ctx, - struct sk_buff *skb, int hdr_len) -{ - int skbs_per_page; - - QETH_DBF_TEXT(TRACE, 5, "eddpcanp"); - /* can we put multiple skbs in one page? */ - skbs_per_page = PAGE_SIZE / (skb_shinfo(skb)->gso_size + hdr_len); - if (skbs_per_page > 1) { - ctx->num_pages = (skb_shinfo(skb)->gso_segs + 1) / - skbs_per_page + 1; - ctx->elements_per_skb = 1; - } else { - /* no -> how many elements per skb? */ - ctx->elements_per_skb = (skb_shinfo(skb)->gso_size + hdr_len + - PAGE_SIZE) >> PAGE_SHIFT; - ctx->num_pages = ctx->elements_per_skb * - (skb_shinfo(skb)->gso_segs + 1); - } - ctx->num_elements = ctx->elements_per_skb * - (skb_shinfo(skb)->gso_segs + 1); -} - -static struct qeth_eddp_context *qeth_eddp_create_context_generic( - struct qeth_card *card, struct sk_buff *skb, int hdr_len) -{ - struct qeth_eddp_context *ctx = NULL; - u8 *addr; - int i; - - QETH_DBF_TEXT(TRACE, 5, "creddpcg"); - /* create the context and allocate pages */ - ctx = kzalloc(sizeof(struct qeth_eddp_context), GFP_ATOMIC); - if (ctx == NULL) { - QETH_DBF_TEXT(TRACE, 2, "ceddpcn1"); - return NULL; - } - ctx->type = QETH_LARGE_SEND_EDDP; - qeth_eddp_calc_num_pages(ctx, skb, hdr_len); - if (ctx->elements_per_skb > QETH_MAX_BUFFER_ELEMENTS(card)) { - QETH_DBF_TEXT(TRACE, 2, "ceddpcis"); - kfree(ctx); - return NULL; - } - ctx->pages = kcalloc(ctx->num_pages, sizeof(u8 *), GFP_ATOMIC); - if (ctx->pages == NULL) { - QETH_DBF_TEXT(TRACE, 2, "ceddpcn2"); - kfree(ctx); - return NULL; - } - for (i = 0; i < ctx->num_pages; ++i) { - addr = (u8 *)get_zeroed_page(GFP_ATOMIC); - if (addr == NULL) { - QETH_DBF_TEXT(TRACE, 2, "ceddpcn3"); - ctx->num_pages = i; - qeth_eddp_free_context(ctx); - return NULL; - } - ctx->pages[i] = addr; - } - ctx->elements = kcalloc(ctx->num_elements, - sizeof(struct qeth_eddp_element), GFP_ATOMIC); - if (ctx->elements == NULL) { - QETH_DBF_TEXT(TRACE, 2, "ceddpcn4"); - qeth_eddp_free_context(ctx); - return NULL; - } - /* reset num_elements; will be incremented again in fill_buffer to - * reflect number of actually used elements */ - ctx->num_elements = 0; - return ctx; -} - -static struct qeth_eddp_context *qeth_eddp_create_context_tcp( - struct qeth_card *card, struct sk_buff *skb, - struct qeth_hdr *qhdr) -{ - struct qeth_eddp_context *ctx = NULL; - - QETH_DBF_TEXT(TRACE, 5, "creddpct"); - if (skb->protocol == htons(ETH_P_IP)) - ctx = qeth_eddp_create_context_generic(card, skb, - (sizeof(struct qeth_hdr) + - ip_hdrlen(skb) + - tcp_hdrlen(skb))); - else if (skb->protocol == htons(ETH_P_IPV6)) - ctx = qeth_eddp_create_context_generic(card, skb, - sizeof(struct qeth_hdr) + sizeof(struct ipv6hdr) + - tcp_hdrlen(skb)); - else - QETH_DBF_TEXT(TRACE, 2, "cetcpinv"); - - if (ctx == NULL) { - QETH_DBF_TEXT(TRACE, 2, "creddpnl"); - return NULL; - } - if (qeth_eddp_fill_context_tcp(ctx, skb, qhdr)) { - QETH_DBF_TEXT(TRACE, 2, "ceddptfe"); - qeth_eddp_free_context(ctx); - return NULL; - } - atomic_set(&ctx->refcnt, 1); - return ctx; -} - -struct qeth_eddp_context *qeth_eddp_create_context(struct qeth_card *card, - struct sk_buff *skb, struct qeth_hdr *qhdr, - unsigned char sk_protocol) -{ - QETH_DBF_TEXT(TRACE, 5, "creddpc"); - switch (sk_protocol) { - case IPPROTO_TCP: - return qeth_eddp_create_context_tcp(card, skb, qhdr); - default: - QETH_DBF_TEXT(TRACE, 2, "eddpinvp"); - } - return NULL; -} -EXPORT_SYMBOL_GPL(qeth_eddp_create_context); - -void qeth_tso_fill_header(struct qeth_card *card, struct qeth_hdr *qhdr, - struct sk_buff *skb) -{ - struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr; - struct tcphdr *tcph = tcp_hdr(skb); - struct iphdr *iph = ip_hdr(skb); - struct ipv6hdr *ip6h = ipv6_hdr(skb); - - QETH_DBF_TEXT(TRACE, 5, "tsofhdr"); - - /*fix header to TSO values ...*/ - hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO; - /*set values which are fix for the first approach ...*/ - hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso); - hdr->ext.imb_hdr_no = 1; - hdr->ext.hdr_type = 1; - hdr->ext.hdr_version = 1; - hdr->ext.hdr_len = 28; - /*insert non-fix values */ - hdr->ext.mss = skb_shinfo(skb)->gso_size; - hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4); - hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len - - sizeof(struct qeth_hdr_tso)); - tcph->check = 0; - if (skb->protocol == ETH_P_IPV6) { - ip6h->payload_len = 0; - tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr, - 0, IPPROTO_TCP, 0); - } else { - /*OSA want us to set these values ...*/ - tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, - 0, IPPROTO_TCP, 0); - iph->tot_len = 0; - iph->check = 0; - } -} -EXPORT_SYMBOL_GPL(qeth_tso_fill_header); - -void qeth_tx_csum(struct sk_buff *skb) -{ - int tlen; - if (skb->protocol == htons(ETH_P_IP)) { - tlen = ntohs(ip_hdr(skb)->tot_len) - (ip_hdr(skb)->ihl << 2); - switch (ip_hdr(skb)->protocol) { - case IPPROTO_TCP: - tcp_hdr(skb)->check = 0; - tcp_hdr(skb)->check = csum_tcpudp_magic( - ip_hdr(skb)->saddr, ip_hdr(skb)->daddr, - tlen, ip_hdr(skb)->protocol, - skb_checksum(skb, skb_transport_offset(skb), - tlen, 0)); - break; - case IPPROTO_UDP: - udp_hdr(skb)->check = 0; - udp_hdr(skb)->check = csum_tcpudp_magic( - ip_hdr(skb)->saddr, ip_hdr(skb)->daddr, - tlen, ip_hdr(skb)->protocol, - skb_checksum(skb, skb_transport_offset(skb), - tlen, 0)); - break; - } - } else if (skb->protocol == htons(ETH_P_IPV6)) { - switch (ipv6_hdr(skb)->nexthdr) { - case IPPROTO_TCP: - tcp_hdr(skb)->check = 0; - tcp_hdr(skb)->check = csum_ipv6_magic( - &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr, - ipv6_hdr(skb)->payload_len, - ipv6_hdr(skb)->nexthdr, - skb_checksum(skb, skb_transport_offset(skb), - ipv6_hdr(skb)->payload_len, 0)); - break; - case IPPROTO_UDP: - udp_hdr(skb)->check = 0; - udp_hdr(skb)->check = csum_ipv6_magic( - &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr, - ipv6_hdr(skb)->payload_len, - ipv6_hdr(skb)->nexthdr, - skb_checksum(skb, skb_transport_offset(skb), - ipv6_hdr(skb)->payload_len, 0)); - break; - } - } -} -EXPORT_SYMBOL_GPL(qeth_tx_csum); diff --git a/drivers/s390/net/qeth_core_offl.h b/drivers/s390/net/qeth_core_offl.h deleted file mode 100644 index 86bf7df8cf1..00000000000 --- a/drivers/s390/net/qeth_core_offl.h +++ /dev/null @@ -1,76 +0,0 @@ -/* - * drivers/s390/net/qeth_core_offl.h - * - * Copyright IBM Corp. 2007 - * Author(s): Thomas Spatzier <tspat@de.ibm.com>, - * Frank Blaschka <frank.blaschka@de.ibm.com> - */ - -#ifndef __QETH_CORE_OFFL_H__ -#define __QETH_CORE_OFFL_H__ - -struct qeth_eddp_element { - u32 flags; - u32 length; - void *addr; -}; - -struct qeth_eddp_context { - atomic_t refcnt; - enum qeth_large_send_types type; - int num_pages; /* # of allocated pages */ - u8 **pages; /* pointers to pages */ - int offset; /* offset in ctx during creation */ - int num_elements; /* # of required 'SBALEs' */ - struct qeth_eddp_element *elements; /* array of 'SBALEs' */ - int elements_per_skb; /* # of 'SBALEs' per skb **/ -}; - -struct qeth_eddp_context_reference { - struct list_head list; - struct qeth_eddp_context *ctx; -}; - -struct qeth_eddp_data { - struct qeth_hdr qh; - struct ethhdr mac; - __be16 vlan[2]; - union { - struct { - struct iphdr h; - u8 options[40]; - } ip4; - struct { - struct ipv6hdr h; - } ip6; - } nh; - u8 nhl; - void *nh_in_ctx; /* address of nh within the ctx */ - union { - struct { - struct tcphdr h; - u8 options[40]; - } tcp; - } th; - u8 thl; - void *th_in_ctx; /* address of th within the ctx */ - struct sk_buff *skb; - int skb_offset; - int frag; - int frag_offset; -} __attribute__ ((packed)); - -extern struct qeth_eddp_context *qeth_eddp_create_context(struct qeth_card *, - struct sk_buff *, struct qeth_hdr *, unsigned char); -extern void qeth_eddp_put_context(struct qeth_eddp_context *); -extern int qeth_eddp_fill_buffer(struct qeth_qdio_out_q *, - struct qeth_eddp_context *, int); -extern void qeth_eddp_buf_release_contexts(struct qeth_qdio_out_buffer *); -extern int qeth_eddp_check_buffers_for_context(struct qeth_qdio_out_q *, - struct qeth_eddp_context *); - -void qeth_tso_fill_header(struct qeth_card *, struct qeth_hdr *, - struct sk_buff *); -void qeth_tx_csum(struct sk_buff *skb); - -#endif /* __QETH_CORE_EDDP_H__ */ diff --git a/drivers/s390/net/qeth_core_sys.c b/drivers/s390/net/qeth_core_sys.c index c26e842ad90..8a25a2be989 100644 --- a/drivers/s390/net/qeth_core_sys.c +++ b/drivers/s390/net/qeth_core_sys.c @@ -1,6 +1,4 @@ /* - * drivers/s390/net/qeth_core_sys.c - * * Copyright IBM Corp. 2007 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, * Frank Pavlic <fpavlic@de.ibm.com>, @@ -8,6 +6,9 @@ * Frank Blaschka <frank.blaschka@de.ibm.com> */ +#define KMSG_COMPONENT "qeth" +#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt + #include <linux/list.h> #include <linux/rwsem.h> #include <asm/ebcdic.h> @@ -118,22 +119,33 @@ static ssize_t qeth_dev_portno_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; - unsigned int portno; + unsigned int portno, limit; + int rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) - return -EPERM; + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; + } portno = simple_strtoul(buf, &tmp, 16); if (portno > QETH_MAX_PORTNO) { - return -EINVAL; + rc = -EINVAL; + goto out; + } + limit = (card->ssqd.pcnt ? card->ssqd.pcnt - 1 : card->ssqd.pcnt); + if (portno > limit) { + rc = -EINVAL; + goto out; } - card->info.portno = portno; - return count; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(portno, 0644, qeth_dev_portno_show, qeth_dev_portno_store); @@ -160,18 +172,23 @@ static ssize_t qeth_dev_portname_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; - int i; + int i, rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) - return -EPERM; + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; + } tmp = strsep((char **) &buf, "\n"); - if ((strlen(tmp) > 8) || (strlen(tmp) == 0)) - return -EINVAL; + if ((strlen(tmp) > 8) || (strlen(tmp) == 0)) { + rc = -EINVAL; + goto out; + } card->info.portname[0] = strlen(tmp); /* for beauty reasons */ @@ -179,8 +196,9 @@ static ssize_t qeth_dev_portname_store(struct device *dev, card->info.portname[i] = ' '; strcpy(card->info.portname + 1, tmp); ASCEBC(card->info.portname + 1, 8); - - return count; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(portname, 0644, qeth_dev_portname_show, @@ -199,6 +217,10 @@ static ssize_t qeth_dev_prioqing_show(struct device *dev, return sprintf(buf, "%s\n", "by precedence"); case QETH_PRIO_Q_ING_TOS: return sprintf(buf, "%s\n", "by type of service"); + case QETH_PRIO_Q_ING_SKB: + return sprintf(buf, "%s\n", "by skb-priority"); + case QETH_PRIO_Q_ING_VLAN: + return sprintf(buf, "%s\n", "by VLAN headers"); default: return sprintf(buf, "always queue %i\n", card->qdio.default_out_queue); @@ -210,28 +232,45 @@ static ssize_t qeth_dev_prioqing_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; + int rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) - return -EPERM; + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; + } /* check if 1920 devices are supported , * if though we have to permit priority queueing */ if (card->qdio.no_out_queues == 1) { card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; - return -EPERM; + rc = -EPERM; + goto out; } tmp = strsep((char **) &buf, "\n"); - if (!strcmp(tmp, "prio_queueing_prec")) + if (!strcmp(tmp, "prio_queueing_prec")) { card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_PREC; - else if (!strcmp(tmp, "prio_queueing_tos")) + card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; + } else if (!strcmp(tmp, "prio_queueing_skb")) { + card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_SKB; + card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; + } else if (!strcmp(tmp, "prio_queueing_tos")) { card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_TOS; - else if (!strcmp(tmp, "no_prio_queueing:0")) { + card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; + } else if (!strcmp(tmp, "prio_queueing_vlan")) { + if (!card->options.layer2) { + rc = -ENOTSUPP; + goto out; + } + card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_VLAN; + card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; + } else if (!strcmp(tmp, "no_prio_queueing:0")) { card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING; card->qdio.default_out_queue = 0; } else if (!strcmp(tmp, "no_prio_queueing:1")) { @@ -246,10 +285,11 @@ static ssize_t qeth_dev_prioqing_store(struct device *dev, } else if (!strcmp(tmp, "no_prio_queueing")) { card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING; card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; - } else { - return -EINVAL; - } - return count; + } else + rc = -EINVAL; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(priority_queueing, 0644, qeth_dev_prioqing_show, @@ -272,14 +312,17 @@ static ssize_t qeth_dev_bufcnt_store(struct device *dev, struct qeth_card *card = dev_get_drvdata(dev); char *tmp; int cnt, old_cnt; - int rc; + int rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) - return -EPERM; + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; + } old_cnt = card->qdio.in_buf_pool.buf_count; cnt = simple_strtoul(buf, &tmp, 10); @@ -288,7 +331,9 @@ static ssize_t qeth_dev_bufcnt_store(struct device *dev, if (old_cnt != cnt) { rc = qeth_realloc_buffer_pool(card, cnt); } - return count; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(buffer_count, 0644, qeth_dev_bufcnt_show, @@ -332,25 +377,27 @@ static ssize_t qeth_dev_performance_stats_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; - int i; + int i, rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); i = simple_strtoul(buf, &tmp, 16); if ((i == 0) || (i == 1)) { if (i == card->options.performance_stats) - return count; + goto out; card->options.performance_stats = i; if (i == 0) memset(&card->perf_stats, 0, sizeof(struct qeth_perf_stats)); card->perf_stats.initial_rx_packets = card->stats.rx_packets; card->perf_stats.initial_tx_packets = card->stats.tx_packets; - } else { - return -EINVAL; - } - return count; + } else + rc = -EINVAL; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(performance_stats, 0644, qeth_dev_performance_stats_show, @@ -364,7 +411,7 @@ static ssize_t qeth_dev_layer2_show(struct device *dev, if (!card) return -EINVAL; - return sprintf(buf, "%i\n", card->options.layer2 ? 1:0); + return sprintf(buf, "%i\n", card->options.layer2); } static ssize_t qeth_dev_layer2_store(struct device *dev, @@ -372,15 +419,17 @@ static ssize_t qeth_dev_layer2_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; - int i, rc; + int i, rc = 0; enum qeth_discipline_id newdis; if (!card) return -EINVAL; - if (((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER))) - return -EPERM; + mutex_lock(&card->discipline_mutex); + if (card->state != CARD_STATE_DOWN) { + rc = -EPERM; + goto out; + } i = simple_strtoul(buf, &tmp, 16); switch (i) { @@ -391,32 +440,38 @@ static ssize_t qeth_dev_layer2_store(struct device *dev, newdis = QETH_DISCIPLINE_LAYER2; break; default: - return -EINVAL; + rc = -EINVAL; + goto out; } - if (card->options.layer2 == newdis) { - return count; - } else { - if (card->discipline.ccwgdriver) { - card->discipline.ccwgdriver->remove(card->gdev); + if (card->options.layer2 == newdis) + goto out; + else { + card->info.mac_bits = 0; + if (card->discipline) { + card->discipline->remove(card->gdev); qeth_core_free_discipline(card); } } rc = qeth_core_load_discipline(card, newdis); if (rc) - return rc; + goto out; - rc = card->discipline.ccwgdriver->probe(card->gdev); - if (rc) - return rc; - return count; + rc = card->discipline->setup(card->gdev); +out: + mutex_unlock(&card->discipline_mutex); + return rc ? rc : count; } static DEVICE_ATTR(layer2, 0644, qeth_dev_layer2_show, qeth_dev_layer2_store); -static ssize_t qeth_dev_large_send_show(struct device *dev, +#define ATTR_QETH_ISOLATION_NONE ("none") +#define ATTR_QETH_ISOLATION_FWD ("forward") +#define ATTR_QETH_ISOLATION_DROP ("drop") + +static ssize_t qeth_dev_isolation_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); @@ -424,48 +479,131 @@ static ssize_t qeth_dev_large_send_show(struct device *dev, if (!card) return -EINVAL; - switch (card->options.large_send) { - case QETH_LARGE_SEND_NO: - return sprintf(buf, "%s\n", "no"); - case QETH_LARGE_SEND_EDDP: - return sprintf(buf, "%s\n", "EDDP"); - case QETH_LARGE_SEND_TSO: - return sprintf(buf, "%s\n", "TSO"); + switch (card->options.isolation) { + case ISOLATION_MODE_NONE: + return snprintf(buf, 6, "%s\n", ATTR_QETH_ISOLATION_NONE); + case ISOLATION_MODE_FWD: + return snprintf(buf, 9, "%s\n", ATTR_QETH_ISOLATION_FWD); + case ISOLATION_MODE_DROP: + return snprintf(buf, 6, "%s\n", ATTR_QETH_ISOLATION_DROP); default: - return sprintf(buf, "%s\n", "N/A"); + return snprintf(buf, 5, "%s\n", "N/A"); } } -static ssize_t qeth_dev_large_send_store(struct device *dev, +static ssize_t qeth_dev_isolation_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev_get_drvdata(dev); - enum qeth_large_send_types type; + enum qeth_ipa_isolation_modes isolation; int rc = 0; - char *tmp; + char *tmp, *curtoken; + curtoken = (char *) buf; if (!card) return -EINVAL; - tmp = strsep((char **) &buf, "\n"); - if (!strcmp(tmp, "no")) { - type = QETH_LARGE_SEND_NO; - } else if (!strcmp(tmp, "EDDP")) { - type = QETH_LARGE_SEND_EDDP; - } else if (!strcmp(tmp, "TSO")) { - type = QETH_LARGE_SEND_TSO; + + mutex_lock(&card->conf_mutex); + /* check for unknown, too, in case we do not yet know who we are */ + if (card->info.type != QETH_CARD_TYPE_OSD && + card->info.type != QETH_CARD_TYPE_OSX && + card->info.type != QETH_CARD_TYPE_UNKNOWN) { + rc = -EOPNOTSUPP; + dev_err(&card->gdev->dev, "Adapter does not " + "support QDIO data connection isolation\n"); + goto out; + } + + /* parse input into isolation mode */ + tmp = strsep(&curtoken, "\n"); + if (!strcmp(tmp, ATTR_QETH_ISOLATION_NONE)) { + isolation = ISOLATION_MODE_NONE; + } else if (!strcmp(tmp, ATTR_QETH_ISOLATION_FWD)) { + isolation = ISOLATION_MODE_FWD; + } else if (!strcmp(tmp, ATTR_QETH_ISOLATION_DROP)) { + isolation = ISOLATION_MODE_DROP; } else { - return -EINVAL; + rc = -EINVAL; + goto out; } - if (card->options.large_send == type) - return count; - rc = qeth_set_large_send(card, type); - if (rc) - return rc; - return count; + rc = count; + + /* defer IP assist if device is offline (until discipline->set_online)*/ + card->options.prev_isolation = card->options.isolation; + card->options.isolation = isolation; + if (card->state == CARD_STATE_SOFTSETUP || + card->state == CARD_STATE_UP) { + int ipa_rc = qeth_set_access_ctrl_online(card, 1); + if (ipa_rc != 0) + rc = ipa_rc; + } +out: + mutex_unlock(&card->conf_mutex); + return rc; } -static DEVICE_ATTR(large_send, 0644, qeth_dev_large_send_show, - qeth_dev_large_send_store); +static DEVICE_ATTR(isolation, 0644, qeth_dev_isolation_show, + qeth_dev_isolation_store); + +static ssize_t qeth_hw_trap_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct qeth_card *card = dev_get_drvdata(dev); + + if (!card) + return -EINVAL; + if (card->info.hwtrap) + return snprintf(buf, 5, "arm\n"); + else + return snprintf(buf, 8, "disarm\n"); +} + +static ssize_t qeth_hw_trap_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct qeth_card *card = dev_get_drvdata(dev); + int rc = 0; + char *tmp, *curtoken; + int state = 0; + curtoken = (char *)buf; + + if (!card) + return -EINVAL; + + mutex_lock(&card->conf_mutex); + if (card->state == CARD_STATE_SOFTSETUP || card->state == CARD_STATE_UP) + state = 1; + tmp = strsep(&curtoken, "\n"); + + if (!strcmp(tmp, "arm") && !card->info.hwtrap) { + if (state) { + if (qeth_is_diagass_supported(card, + QETH_DIAGS_CMD_TRAP)) { + rc = qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM); + if (!rc) + card->info.hwtrap = 1; + } else + rc = -EINVAL; + } else + card->info.hwtrap = 1; + } else if (!strcmp(tmp, "disarm") && card->info.hwtrap) { + if (state) { + rc = qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); + if (!rc) + card->info.hwtrap = 0; + } else + card->info.hwtrap = 0; + } else if (!strcmp(tmp, "trap") && state && card->info.hwtrap) + rc = qeth_hw_trap(card, QETH_DIAGS_TRAP_CAPTURE); + else + rc = -EINVAL; + + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; +} + +static DEVICE_ATTR(hw_trap, 0644, qeth_hw_trap_show, + qeth_hw_trap_store); static ssize_t qeth_dev_blkt_show(char *buf, struct qeth_card *card, int value) { @@ -480,22 +618,25 @@ static ssize_t qeth_dev_blkt_store(struct qeth_card *card, const char *buf, size_t count, int *value, int max_value) { char *tmp; - int i; + int i, rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) - return -EPERM; - + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; + } i = simple_strtoul(buf, &tmp, 10); - if (i <= max_value) { + if (i <= max_value) *value = i; - } else { - return -EINVAL; - } - return count; + else + rc = -EINVAL; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static ssize_t qeth_dev_blkt_total_show(struct device *dev, @@ -512,7 +653,7 @@ static ssize_t qeth_dev_blkt_total_store(struct device *dev, struct qeth_card *card = dev_get_drvdata(dev); return qeth_dev_blkt_store(card, buf, count, - &card->info.blkt.time_total, 1000); + &card->info.blkt.time_total, 5000); } @@ -534,7 +675,7 @@ static ssize_t qeth_dev_blkt_inter_store(struct device *dev, struct qeth_card *card = dev_get_drvdata(dev); return qeth_dev_blkt_store(card, buf, count, - &card->info.blkt.inter_packet, 100); + &card->info.blkt.inter_packet, 1000); } static DEVICE_ATTR(inter, 0644, qeth_dev_blkt_inter_show, @@ -555,7 +696,7 @@ static ssize_t qeth_dev_blkt_inter_jumbo_store(struct device *dev, struct qeth_card *card = dev_get_drvdata(dev); return qeth_dev_blkt_store(card, buf, count, - &card->info.blkt.inter_packet_jumbo, 100); + &card->info.blkt.inter_packet_jumbo, 1000); } static DEVICE_ATTR(inter_jumbo, 0644, qeth_dev_blkt_inter_jumbo_show, @@ -567,7 +708,6 @@ static struct attribute *qeth_blkt_device_attrs[] = { &dev_attr_inter_jumbo.attr, NULL, }; - static struct attribute_group qeth_device_blkt_group = { .name = "blkt", .attrs = qeth_blkt_device_attrs, @@ -586,14 +726,20 @@ static struct attribute *qeth_device_attrs[] = { &dev_attr_recover.attr, &dev_attr_performance_stats.attr, &dev_attr_layer2.attr, - &dev_attr_large_send.attr, + &dev_attr_isolation.attr, + &dev_attr_hw_trap.attr, NULL, }; - static struct attribute_group qeth_device_attr_group = { .attrs = qeth_device_attrs, }; +const struct attribute_group *qeth_generic_attr_groups[] = { + &qeth_device_attr_group, + &qeth_device_blkt_group, + NULL, +}; + static struct attribute *qeth_osn_device_attrs[] = { &dev_attr_state.attr, &dev_attr_chpid.attr, @@ -603,37 +749,10 @@ static struct attribute *qeth_osn_device_attrs[] = { &dev_attr_recover.attr, NULL, }; - static struct attribute_group qeth_osn_device_attr_group = { .attrs = qeth_osn_device_attrs, }; - -int qeth_core_create_device_attributes(struct device *dev) -{ - int ret; - ret = sysfs_create_group(&dev->kobj, &qeth_device_attr_group); - if (ret) - return ret; - ret = sysfs_create_group(&dev->kobj, &qeth_device_blkt_group); - if (ret) - sysfs_remove_group(&dev->kobj, &qeth_device_attr_group); - - return 0; -} - -void qeth_core_remove_device_attributes(struct device *dev) -{ - sysfs_remove_group(&dev->kobj, &qeth_device_attr_group); - sysfs_remove_group(&dev->kobj, &qeth_device_blkt_group); -} - -int qeth_core_create_osn_attributes(struct device *dev) -{ - return sysfs_create_group(&dev->kobj, &qeth_osn_device_attr_group); -} - -void qeth_core_remove_osn_attributes(struct device *dev) -{ - sysfs_remove_group(&dev->kobj, &qeth_osn_device_attr_group); - return; -} +const struct attribute_group *qeth_osn_attr_groups[] = { + &qeth_osn_device_attr_group, + NULL, +}; diff --git a/drivers/s390/net/qeth_l2.h b/drivers/s390/net/qeth_l2.h new file mode 100644 index 00000000000..0767556404b --- /dev/null +++ b/drivers/s390/net/qeth_l2.h @@ -0,0 +1,15 @@ +/* + * Copyright IBM Corp. 2013 + * Author(s): Eugene Crosser <eugene.crosser@ru.ibm.com> + */ + +#ifndef __QETH_L2_H__ +#define __QETH_L2_H__ + +#include "qeth_core.h" + +int qeth_l2_create_device_attributes(struct device *); +void qeth_l2_remove_device_attributes(struct device *); +void qeth_l2_setup_bridgeport_attrs(struct qeth_card *card); + +#endif /* __QETH_L2_H__ */ diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 3ac3cc1e03c..5ef5b4f4575 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -1,26 +1,27 @@ /* - * drivers/s390/net/qeth_l2_main.c - * - * Copyright IBM Corp. 2007 + * Copyright IBM Corp. 2007, 2009 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, * Frank Pavlic <fpavlic@de.ibm.com>, * Thomas Spatzier <tspat@de.ibm.com>, * Frank Blaschka <frank.blaschka@de.ibm.com> */ +#define KMSG_COMPONENT "qeth" +#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/string.h> #include <linux/errno.h> #include <linux/kernel.h> +#include <linux/slab.h> #include <linux/etherdevice.h> #include <linux/mii.h> #include <linux/ip.h> - -#include <asm/s390_rdev.h> +#include <linux/list.h> #include "qeth_core.h" -#include "qeth_core_offl.h" +#include "qeth_l2.h" static int qeth_l2_set_offline(struct ccwgroup_device *); static int qeth_l2_stop(struct net_device *); @@ -32,6 +33,11 @@ static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *, unsigned long)); static void qeth_l2_set_multicast_list(struct net_device *); static int qeth_l2_recover(void *); +static void qeth_bridgeport_query_support(struct qeth_card *card); +static void qeth_bridge_state_change(struct qeth_card *card, + struct qeth_ipa_cmd *cmd); +static void qeth_bridge_host_event(struct qeth_card *card, + struct qeth_ipa_cmd *cmd); static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) { @@ -54,7 +60,9 @@ static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); break; case SIOC_QETH_GET_CARD_TYPE: - if ((card->info.type == QETH_CARD_TYPE_OSAE) && + if ((card->info.type == QETH_CARD_TYPE_OSD || + card->info.type == QETH_CARD_TYPE_OSM || + card->info.type == QETH_CARD_TYPE_OSX) && !card->info.guestlan) return 1; return 0; @@ -71,11 +79,14 @@ static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) mii_data->val_out = qeth_mdio_read(dev, mii_data->phy_id, mii_data->reg_num); break; + case SIOC_QETH_QUERY_OAT: + rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data); + break; default: rc = -EOPNOTSUPP; } if (rc) - QETH_DBF_TEXT_(TRACE, 2, "ioce%d", rc); + QETH_CARD_TEXT_(card, 2, "ioce%d", rc); return rc; } @@ -126,28 +137,24 @@ static int qeth_l2_send_setgroupmac_cb(struct qeth_card *card, struct qeth_ipa_cmd *cmd; __u8 *mac; - QETH_DBF_TEXT(TRACE, 2, "L2Sgmacb"); + QETH_CARD_TEXT(card, 2, "L2Sgmacb"); cmd = (struct qeth_ipa_cmd *) data; mac = &cmd->data.setdelmac.mac[0]; /* MAC already registered, needed in couple/uncouple case */ - if (cmd->hdr.return_code == 0x2005) { - QETH_DBF_MESSAGE(2, "Group MAC %02x:%02x:%02x:%02x:%02x:%02x " - "already existing on %s \n", - mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], - QETH_CARD_IFNAME(card)); + if (cmd->hdr.return_code == IPA_RC_L2_DUP_MAC) { + QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s \n", + mac, QETH_CARD_IFNAME(card)); cmd->hdr.return_code = 0; } if (cmd->hdr.return_code) - QETH_DBF_MESSAGE(2, "Could not set group MAC " - "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n", - mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], - QETH_CARD_IFNAME(card), cmd->hdr.return_code); + QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %x\n", + mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); return 0; } static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac) { - QETH_DBF_TEXT(TRACE, 2, "L2Sgmac"); + QETH_CARD_TEXT(card, 2, "L2Sgmac"); return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETGMAC, qeth_l2_send_setgroupmac_cb); } @@ -159,20 +166,18 @@ static int qeth_l2_send_delgroupmac_cb(struct qeth_card *card, struct qeth_ipa_cmd *cmd; __u8 *mac; - QETH_DBF_TEXT(TRACE, 2, "L2Dgmacb"); + QETH_CARD_TEXT(card, 2, "L2Dgmacb"); cmd = (struct qeth_ipa_cmd *) data; mac = &cmd->data.setdelmac.mac[0]; if (cmd->hdr.return_code) - QETH_DBF_MESSAGE(2, "Could not delete group MAC " - "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n", - mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], - QETH_CARD_IFNAME(card), cmd->hdr.return_code); + QETH_DBF_MESSAGE(2, "Could not delete group MAC %pM on %s: %x\n", + mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); return 0; } static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac) { - QETH_DBF_TEXT(TRACE, 2, "L2Dgmac"); + QETH_CARD_TEXT(card, 2, "L2Dgmac"); return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELGMAC, qeth_l2_send_delgroupmac_cb); } @@ -204,57 +209,39 @@ static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac) kfree(mc); } -static void qeth_l2_del_all_mc(struct qeth_card *card) +static void qeth_l2_del_all_mc(struct qeth_card *card, int del) { struct qeth_mc_mac *mc, *tmp; spin_lock_bh(&card->mclock); list_for_each_entry_safe(mc, tmp, &card->mc_list, list) { - if (mc->is_vmac) - qeth_l2_send_setdelmac(card, mc->mc_addr, + if (del) { + if (mc->is_vmac) + qeth_l2_send_setdelmac(card, mc->mc_addr, IPA_CMD_DELVMAC, NULL); - else - qeth_l2_send_delgroupmac(card, mc->mc_addr); + else + qeth_l2_send_delgroupmac(card, mc->mc_addr); + } list_del(&mc->list); kfree(mc); } spin_unlock_bh(&card->mclock); } -static void qeth_l2_get_packet_type(struct qeth_card *card, - struct qeth_hdr *hdr, struct sk_buff *skb) +static inline int qeth_l2_get_cast_type(struct qeth_card *card, + struct sk_buff *skb) { - __u16 hdr_mac; - - if (!memcmp(skb->data + QETH_HEADER_SIZE, - skb->dev->broadcast, 6)) { - /* broadcast? */ - hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; - return; - } - hdr_mac = *((__u16 *)skb->data); - /* tr multicast? */ - switch (card->info.link_type) { - case QETH_LINK_TYPE_HSTR: - case QETH_LINK_TYPE_LANE_TR: - if ((hdr_mac == QETH_TR_MAC_NC) || - (hdr_mac == QETH_TR_MAC_C)) - hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; - else - hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; - break; - /* eth or so multicast? */ - default: - if ((hdr_mac == QETH_ETH_MAC_V4) || - (hdr_mac == QETH_ETH_MAC_V6)) - hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; - else - hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; - } + if (card->info.type == QETH_CARD_TYPE_OSN) + return RTN_UNSPEC; + if (is_broadcast_ether_addr(skb->data)) + return RTN_BROADCAST; + if (is_multicast_ether_addr(skb->data)) + return RTN_MULTICAST; + return RTN_UNSPEC; } static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, - struct sk_buff *skb, int ipv, int cast_type) + struct sk_buff *skb, int cast_type) { struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); @@ -267,7 +254,7 @@ static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, else if (cast_type == RTN_BROADCAST) hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; else - qeth_l2_get_packet_type(card, hdr, skb); + hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE; /* VSWITCH relies on the VLAN @@ -284,15 +271,14 @@ static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, { struct qeth_ipa_cmd *cmd; - QETH_DBF_TEXT(TRACE, 2, "L2sdvcb"); + QETH_CARD_TEXT(card, 2, "L2sdvcb"); cmd = (struct qeth_ipa_cmd *) data; if (cmd->hdr.return_code) { QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. " "Continuing\n", cmd->data.setdelvlan.vlan_id, QETH_CARD_IFNAME(card), cmd->hdr.return_code); - QETH_DBF_TEXT_(TRACE, 2, "L2VL%4x", cmd->hdr.command); - QETH_DBF_TEXT_(TRACE, 2, "L2%s", CARD_BUS_ID(card)); - QETH_DBF_TEXT_(TRACE, 2, "err%d", cmd->hdr.return_code); + QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command); + QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code); } return 0; } @@ -303,7 +289,7 @@ static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, struct qeth_ipa_cmd *cmd; struct qeth_cmd_buffer *iob; - QETH_DBF_TEXT_(TRACE, 4, "L2sdv%x", ipacmd); + QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd); iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); cmd->data.setdelvlan.vlan_id = i; @@ -311,28 +297,34 @@ static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, qeth_l2_send_setdelvlan_cb, NULL); } -static void qeth_l2_process_vlans(struct qeth_card *card, int clear) +static void qeth_l2_process_vlans(struct qeth_card *card) { struct qeth_vlan_vid *id; - QETH_DBF_TEXT(TRACE, 3, "L2prcvln"); + QETH_CARD_TEXT(card, 3, "L2prcvln"); spin_lock_bh(&card->vlanlock); list_for_each_entry(id, &card->vid_list, list) { - if (clear) - qeth_l2_send_setdelvlan(card, id->vid, - IPA_CMD_DELVLAN); - else - qeth_l2_send_setdelvlan(card, id->vid, - IPA_CMD_SETVLAN); + qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN); } spin_unlock_bh(&card->vlanlock); } -static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) +static int qeth_l2_vlan_rx_add_vid(struct net_device *dev, + __be16 proto, u16 vid) { struct qeth_card *card = dev->ml_priv; struct qeth_vlan_vid *id; - QETH_DBF_TEXT_(TRACE, 4, "aid:%d", vid); + QETH_CARD_TEXT_(card, 4, "aid:%d", vid); + if (!vid) + return 0; + if (card->info.type == QETH_CARD_TYPE_OSM) { + QETH_CARD_TEXT(card, 3, "aidOSM"); + return 0; + } + if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { + QETH_CARD_TEXT(card, 3, "aidREC"); + return 0; + } id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC); if (id) { id->vid = vid; @@ -340,15 +332,27 @@ static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) spin_lock_bh(&card->vlanlock); list_add_tail(&id->list, &card->vid_list); spin_unlock_bh(&card->vlanlock); + } else { + return -ENOMEM; } + return 0; } -static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) +static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev, + __be16 proto, u16 vid) { struct qeth_vlan_vid *id, *tmpid = NULL; struct qeth_card *card = dev->ml_priv; - QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid); + QETH_CARD_TEXT_(card, 4, "kid:%d", vid); + if (card->info.type == QETH_CARD_TYPE_OSM) { + QETH_CARD_TEXT(card, 3, "kidOSM"); + return 0; + } + if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { + QETH_CARD_TEXT(card, 3, "kidREC"); + return 0; + } spin_lock_bh(&card->vlanlock); list_for_each_entry(id, &card->vid_list, list) { if (id->vid == vid) { @@ -363,6 +367,7 @@ static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) kfree(tmpid); } qeth_l2_set_multicast_list(card->dev); + return 0; } static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) @@ -373,8 +378,6 @@ static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); qeth_set_allowed_threads(card, 0, 1); - if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)) - return -ERESTARTSYS; if (card->read.state == CH_STATE_UP && card->write.state == CH_STATE_UP && (card->state == CARD_STATE_UP)) { @@ -386,16 +389,11 @@ static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) dev_close(card->dev); rtnl_unlock(); } - if (!card->use_hard_stop) { - __u8 *mac = &card->dev->dev_addr[0]; - rc = qeth_l2_send_delmac(card, mac); - QETH_DBF_TEXT_(SETUP, 2, "Lerr%d", rc); - } + card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; card->state = CARD_STATE_SOFTSETUP; } if (card->state == CARD_STATE_SOFTSETUP) { - qeth_l2_process_vlans(card, 1); - qeth_l2_del_all_mc(card); + qeth_l2_del_all_mc(card, 0); qeth_clear_ipacmd_list(card); card->state = CARD_STATE_HARDSETUP; } @@ -409,63 +407,135 @@ static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) qeth_clear_cmd_buffers(&card->read); qeth_clear_cmd_buffers(&card->write); } - card->use_hard_stop = 0; return rc; } -static void qeth_l2_process_inbound_buffer(struct qeth_card *card, - struct qeth_qdio_buffer *buf, int index) +static int qeth_l2_process_inbound_buffer(struct qeth_card *card, + int budget, int *done) { - struct qdio_buffer_element *element; + int work_done = 0; struct sk_buff *skb; struct qeth_hdr *hdr; - int offset; unsigned int len; - /* get first element of current buffer */ - element = (struct qdio_buffer_element *)&buf->buffer->element[0]; - offset = 0; - if (card->options.performance_stats) - card->perf_stats.bufs_rec++; - while ((skb = qeth_core_get_next_skb(card, buf->buffer, &element, - &offset, &hdr))) { - skb->dev = card->dev; - /* is device UP ? */ - if (!(card->dev->flags & IFF_UP)) { - dev_kfree_skb_any(skb); - continue; + *done = 0; + WARN_ON_ONCE(!budget); + while (budget) { + skb = qeth_core_get_next_skb(card, + &card->qdio.in_q->bufs[card->rx.b_index], + &card->rx.b_element, &card->rx.e_offset, &hdr); + if (!skb) { + *done = 1; + break; } - + skb->dev = card->dev; switch (hdr->hdr.l2.id) { case QETH_HEADER_TYPE_LAYER2: skb->pkt_type = PACKET_HOST; skb->protocol = eth_type_trans(skb, skb->dev); - if (card->options.checksum_type == NO_CHECKSUMMING) - skb->ip_summed = CHECKSUM_UNNECESSARY; - else - skb->ip_summed = CHECKSUM_NONE; + skb->ip_summed = CHECKSUM_NONE; if (skb->protocol == htons(ETH_P_802_2)) *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; len = skb->len; - netif_rx(skb); + netif_receive_skb(skb); break; case QETH_HEADER_TYPE_OSN: - skb_push(skb, sizeof(struct qeth_hdr)); - skb_copy_to_linear_data(skb, hdr, + if (card->info.type == QETH_CARD_TYPE_OSN) { + skb_push(skb, sizeof(struct qeth_hdr)); + skb_copy_to_linear_data(skb, hdr, sizeof(struct qeth_hdr)); - len = skb->len; - card->osn_info.data_cb(skb); - break; + len = skb->len; + card->osn_info.data_cb(skb); + break; + } + /* else unknown */ default: dev_kfree_skb_any(skb); - QETH_DBF_TEXT(TRACE, 3, "inbunkno"); + QETH_CARD_TEXT(card, 3, "inbunkno"); QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); continue; } - card->dev->last_rx = jiffies; + work_done++; + budget--; card->stats.rx_packets++; card->stats.rx_bytes += len; } + return work_done; +} + +static int qeth_l2_poll(struct napi_struct *napi, int budget) +{ + struct qeth_card *card = container_of(napi, struct qeth_card, napi); + int work_done = 0; + struct qeth_qdio_buffer *buffer; + int done; + int new_budget = budget; + + if (card->options.performance_stats) { + card->perf_stats.inbound_cnt++; + card->perf_stats.inbound_start_time = qeth_get_micros(); + } + + while (1) { + if (!card->rx.b_count) { + card->rx.qdio_err = 0; + card->rx.b_count = qdio_get_next_buffers( + card->data.ccwdev, 0, &card->rx.b_index, + &card->rx.qdio_err); + if (card->rx.b_count <= 0) { + card->rx.b_count = 0; + break; + } + card->rx.b_element = + &card->qdio.in_q->bufs[card->rx.b_index] + .buffer->element[0]; + card->rx.e_offset = 0; + } + + while (card->rx.b_count) { + buffer = &card->qdio.in_q->bufs[card->rx.b_index]; + if (!(card->rx.qdio_err && + qeth_check_qdio_errors(card, buffer->buffer, + card->rx.qdio_err, "qinerr"))) + work_done += qeth_l2_process_inbound_buffer( + card, new_budget, &done); + else + done = 1; + + if (done) { + if (card->options.performance_stats) + card->perf_stats.bufs_rec++; + qeth_put_buffer_pool_entry(card, + buffer->pool_entry); + qeth_queue_input_buffer(card, card->rx.b_index); + card->rx.b_count--; + if (card->rx.b_count) { + card->rx.b_index = + (card->rx.b_index + 1) % + QDIO_MAX_BUFFERS_PER_Q; + card->rx.b_element = + &card->qdio.in_q + ->bufs[card->rx.b_index] + .buffer->element[0]; + card->rx.e_offset = 0; + } + } + + if (work_done >= budget) + goto out; + else + new_budget = budget - work_done; + } + } + + napi_complete(napi); + if (qdio_start_irq(card->data.ccwdev, 0)) + napi_schedule(&card->napi); +out: + if (card->options.performance_stats) + card->perf_stats.inbound_time += qeth_get_micros() - + card->perf_stats.inbound_start_time; + return work_done; } static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, @@ -477,7 +547,7 @@ static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, struct qeth_ipa_cmd *cmd; struct qeth_cmd_buffer *iob; - QETH_DBF_TEXT(TRACE, 2, "L2sdmac"); + QETH_CARD_TEXT(card, 2, "L2sdmac"); iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; @@ -491,29 +561,41 @@ static int qeth_l2_send_setmac_cb(struct qeth_card *card, { struct qeth_ipa_cmd *cmd; - QETH_DBF_TEXT(TRACE, 2, "L2Smaccb"); + QETH_CARD_TEXT(card, 2, "L2Smaccb"); cmd = (struct qeth_ipa_cmd *) data; if (cmd->hdr.return_code) { - QETH_DBF_TEXT_(TRACE, 2, "L2er%x", cmd->hdr.return_code); + QETH_CARD_TEXT_(card, 2, "L2er%x", cmd->hdr.return_code); card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; - cmd->hdr.return_code = -EIO; + switch (cmd->hdr.return_code) { + case IPA_RC_L2_DUP_MAC: + case IPA_RC_L2_DUP_LAYER3_MAC: + dev_warn(&card->gdev->dev, + "MAC address %pM already exists\n", + cmd->data.setdelmac.mac); + break; + case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP: + case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: + dev_warn(&card->gdev->dev, + "MAC address %pM is not authorized\n", + cmd->data.setdelmac.mac); + break; + default: + break; + } } else { card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; memcpy(card->dev->dev_addr, cmd->data.setdelmac.mac, OSA_ADDR_LEN); - PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x " - "successfully registered on device %s\n", - card->dev->dev_addr[0], card->dev->dev_addr[1], - card->dev->dev_addr[2], card->dev->dev_addr[3], - card->dev->dev_addr[4], card->dev->dev_addr[5], - card->dev->name); + dev_info(&card->gdev->dev, + "MAC address %pM successfully registered on device %s\n", + card->dev->dev_addr, card->dev->name); } return 0; } static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) { - QETH_DBF_TEXT(TRACE, 2, "L2Setmac"); + QETH_CARD_TEXT(card, 2, "L2Setmac"); return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, qeth_l2_send_setmac_cb); } @@ -524,11 +606,10 @@ static int qeth_l2_send_delmac_cb(struct qeth_card *card, { struct qeth_ipa_cmd *cmd; - QETH_DBF_TEXT(TRACE, 2, "L2Dmaccb"); + QETH_CARD_TEXT(card, 2, "L2Dmaccb"); cmd = (struct qeth_ipa_cmd *) data; if (cmd->hdr.return_code) { - QETH_DBF_TEXT_(TRACE, 2, "err%d", cmd->hdr.return_code); - cmd->hdr.return_code = -EIO; + QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code); return 0; } card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; @@ -538,7 +619,7 @@ static int qeth_l2_send_delmac_cb(struct qeth_card *card, static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac) { - QETH_DBF_TEXT(TRACE, 2, "L2Delmac"); + QETH_CARD_TEXT(card, 2, "L2Delmac"); if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) return 0; return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC, @@ -553,13 +634,19 @@ static int qeth_l2_request_initial_mac(struct qeth_card *card) QETH_DBF_TEXT(SETUP, 2, "doL2init"); QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); - rc = qeth_query_setadapterparms(card); - if (rc) { - QETH_DBF_MESSAGE(2, "could not query adapter parameters on " - "device %s: x%x\n", CARD_BUS_ID(card), rc); + if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) { + rc = qeth_query_setadapterparms(card); + if (rc) { + QETH_DBF_MESSAGE(2, "could not query adapter " + "parameters on device %s: x%x\n", + CARD_BUS_ID(card), rc); + } } - if (card->info.guestlan) { + if (card->info.type == QETH_CARD_TYPE_IQD || + card->info.type == QETH_CARD_TYPE_OSM || + card->info.type == QETH_CARD_TYPE_OSX || + card->info.guestlan) { rc = qeth_setadpparms_change_macaddr(card); if (rc) { QETH_DBF_MESSAGE(2, "couldn't get MAC address on " @@ -569,7 +656,7 @@ static int qeth_l2_request_initial_mac(struct qeth_card *card) } QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN); } else { - random_ether_addr(card->dev->dev_addr); + eth_random_addr(card->dev->dev_addr); memcpy(card->dev->dev_addr, vendor_pre, 3); } return 0; @@ -581,41 +668,49 @@ static int qeth_l2_set_mac_address(struct net_device *dev, void *p) struct qeth_card *card = dev->ml_priv; int rc = 0; - QETH_DBF_TEXT(TRACE, 3, "setmac"); + QETH_CARD_TEXT(card, 3, "setmac"); if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) { - QETH_DBF_TEXT(TRACE, 3, "setmcINV"); + QETH_CARD_TEXT(card, 3, "setmcINV"); return -EOPNOTSUPP; } - if (card->info.type == QETH_CARD_TYPE_OSN) { - QETH_DBF_TEXT(TRACE, 3, "setmcOSN"); + if (card->info.type == QETH_CARD_TYPE_OSN || + card->info.type == QETH_CARD_TYPE_OSM || + card->info.type == QETH_CARD_TYPE_OSX) { + QETH_CARD_TEXT(card, 3, "setmcTYP"); return -EOPNOTSUPP; } - QETH_DBF_TEXT_(TRACE, 3, "%s", CARD_BUS_ID(card)); - QETH_DBF_HEX(TRACE, 3, addr->sa_data, OSA_ADDR_LEN); + QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN); + if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { + QETH_CARD_TEXT(card, 3, "setmcREC"); + return -ERESTARTSYS; + } rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); - if (!rc) + if (!rc || (rc == IPA_RC_L2_MAC_NOT_FOUND)) rc = qeth_l2_send_setmac(card, addr->sa_data); - return rc; + return rc ? -EINVAL : 0; } static void qeth_l2_set_multicast_list(struct net_device *dev) { struct qeth_card *card = dev->ml_priv; - struct dev_addr_list *dm; + struct netdev_hw_addr *ha; if (card->info.type == QETH_CARD_TYPE_OSN) return ; - QETH_DBF_TEXT(TRACE, 3, "setmulti"); - qeth_l2_del_all_mc(card); + QETH_CARD_TEXT(card, 3, "setmulti"); + if (qeth_threads_running(card, QETH_RECOVER_THREAD) && + (card->state != CARD_STATE_UP)) + return; + qeth_l2_del_all_mc(card, 1); spin_lock_bh(&card->mclock); - for (dm = dev->mc_list; dm; dm = dm->next) - qeth_l2_add_mc(card, dm->da_addr, 0); + netdev_for_each_mc_addr(ha, dev) + qeth_l2_add_mc(card, ha->addr, 0); - for (dm = dev->uc_list; dm; dm = dm->next) - qeth_l2_add_mc(card, dm->da_addr, 1); + netdev_for_each_uc_addr(ha, dev) + qeth_l2_add_mc(card, ha->addr, 1); spin_unlock_bh(&card->mclock); if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) @@ -630,17 +725,20 @@ static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) int elements = 0; struct qeth_card *card = dev->ml_priv; struct sk_buff *new_skb = skb; - int ipv = qeth_get_ip_version(skb); - int cast_type = qeth_get_cast_type(card, skb); - struct qeth_qdio_out_q *queue = card->qdio.out_qs - [qeth_get_priority_queue(card, skb, ipv, cast_type)]; + int cast_type = qeth_l2_get_cast_type(card, skb); + struct qeth_qdio_out_q *queue; int tx_bytes = skb->len; - enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO; - struct qeth_eddp_context *ctx = NULL; int data_offset = -1; int elements_needed = 0; int hd_len = 0; + if (card->qdio.do_prio_queueing || (cast_type && + card->info.is_multicast_different)) + queue = card->qdio.out_qs[qeth_get_priority_queue(card, skb, + qeth_get_ip_version(skb), cast_type)]; + else + queue = card->qdio.out_qs[card->qdio.default_out_queue]; + if ((card->state != CARD_STATE_UP) || !card->lan_online) { card->stats.tx_carrier_errors++; goto tx_drop; @@ -656,14 +754,10 @@ static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) } netif_stop_queue(dev); - if (skb_is_gso(skb)) - large_send = QETH_LARGE_SEND_EDDP; - if (card->info.type == QETH_CARD_TYPE_OSN) hdr = (struct qeth_hdr *)skb->data; else { - if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) && - (skb_shinfo(skb)->nr_frags == 0)) { + if (card->info.type == QETH_CARD_TYPE_IQD) { new_skb = skb; data_offset = ETH_HLEN; hd_len = ETH_HLEN; @@ -673,7 +767,7 @@ static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) goto tx_drop; elements_needed++; skb_reset_mac_header(new_skb); - qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); + qeth_l2_fill_header(card, hdr, new_skb, cast_type); hdr->hdr.l2.pkt_length = new_skb->len; memcpy(((char *)hdr) + sizeof(struct qeth_hdr), skb_mac_header(new_skb), ETH_HLEN); @@ -686,63 +780,33 @@ static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) hdr = (struct qeth_hdr *)skb_push(new_skb, sizeof(struct qeth_hdr)); skb_set_mac_header(new_skb, sizeof(struct qeth_hdr)); - qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); + qeth_l2_fill_header(card, hdr, new_skb, cast_type); } } - if (large_send == QETH_LARGE_SEND_EDDP) { - ctx = qeth_eddp_create_context(card, new_skb, hdr, - skb->sk->sk_protocol); - if (ctx == NULL) { - QETH_DBF_MESSAGE(2, "could not create eddp context\n"); - goto tx_drop; - } - } else { - elements = qeth_get_elements_no(card, (void *)hdr, new_skb, - elements_needed); - if (!elements) { - if (data_offset >= 0) - kmem_cache_free(qeth_core_header_cache, hdr); - goto tx_drop; - } + elements = qeth_get_elements_no(card, new_skb, elements_needed); + if (!elements) { + if (data_offset >= 0) + kmem_cache_free(qeth_core_header_cache, hdr); + goto tx_drop; } - if ((large_send == QETH_LARGE_SEND_NO) && - (skb->ip_summed == CHECKSUM_PARTIAL)) - qeth_tx_csum(new_skb); - - if (card->info.type != QETH_CARD_TYPE_IQD) + if (card->info.type != QETH_CARD_TYPE_IQD) { + if (qeth_hdr_chk_and_bounce(new_skb, &hdr, + sizeof(struct qeth_hdr_layer2))) + goto tx_drop; rc = qeth_do_send_packet(card, queue, new_skb, hdr, - elements, ctx); - else + elements); + } else rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, - elements, ctx, data_offset, hd_len); + elements, data_offset, hd_len); if (!rc) { card->stats.tx_packets++; card->stats.tx_bytes += tx_bytes; if (new_skb != skb) dev_kfree_skb_any(skb); - if (card->options.performance_stats) { - if (large_send != QETH_LARGE_SEND_NO) { - card->perf_stats.large_send_bytes += tx_bytes; - card->perf_stats.large_send_cnt++; - } - if (skb_shinfo(new_skb)->nr_frags > 0) { - card->perf_stats.sg_skbs_sent++; - /* nr_frags + skb->data */ - card->perf_stats.sg_frags_sent += - skb_shinfo(new_skb)->nr_frags + 1; - } - } - - if (ctx != NULL) { - qeth_eddp_put_context(ctx); - dev_kfree_skb_any(new_skb); - } + rc = NETDEV_TX_OK; } else { - if (ctx != NULL) - qeth_eddp_put_context(ctx); - if (data_offset >= 0) kmem_cache_free(qeth_core_header_cache, hdr); @@ -770,79 +834,56 @@ tx_drop: return NETDEV_TX_OK; } -static void qeth_l2_qdio_input_handler(struct ccw_device *ccwdev, - unsigned int qdio_err, unsigned int queue, - int first_element, int count, unsigned long card_ptr) -{ - struct net_device *net_dev; - struct qeth_card *card; - struct qeth_qdio_buffer *buffer; - int index; - int i; - - card = (struct qeth_card *) card_ptr; - net_dev = card->dev; - if (card->options.performance_stats) { - card->perf_stats.inbound_cnt++; - card->perf_stats.inbound_start_time = qeth_get_micros(); - } - if (qdio_err & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) { - QETH_DBF_TEXT(TRACE, 1, "qdinchk"); - QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); - QETH_DBF_TEXT_(TRACE, 1, "%04X%04X", first_element, - count); - QETH_DBF_TEXT_(TRACE, 1, "%04X", queue); - qeth_schedule_recovery(card); - return; - } - for (i = first_element; i < (first_element + count); ++i) { - index = i % QDIO_MAX_BUFFERS_PER_Q; - buffer = &card->qdio.in_q->bufs[index]; - if (!(qdio_err && - qeth_check_qdio_errors(buffer->buffer, qdio_err, "qinerr"))) - qeth_l2_process_inbound_buffer(card, buffer, index); - /* clear buffer and give back to hardware */ - qeth_put_buffer_pool_entry(card, buffer->pool_entry); - qeth_queue_input_buffer(card, index); - } - if (card->options.performance_stats) - card->perf_stats.inbound_time += qeth_get_micros() - - card->perf_stats.inbound_start_time; -} - -static int qeth_l2_open(struct net_device *dev) +static int __qeth_l2_open(struct net_device *dev) { struct qeth_card *card = dev->ml_priv; + int rc = 0; - QETH_DBF_TEXT(TRACE, 4, "qethopen"); + QETH_CARD_TEXT(card, 4, "qethopen"); + if (card->state == CARD_STATE_UP) + return rc; if (card->state != CARD_STATE_SOFTSETUP) return -ENODEV; if ((card->info.type != QETH_CARD_TYPE_OSN) && (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { - QETH_DBF_TEXT(TRACE, 4, "nomacadr"); + QETH_CARD_TEXT(card, 4, "nomacadr"); return -EPERM; } card->data.state = CH_STATE_UP; card->state = CARD_STATE_UP; - card->dev->flags |= IFF_UP; netif_start_queue(dev); - if (!card->lan_online && netif_carrier_ok(dev)) - netif_carrier_off(dev); - return 0; + if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) { + napi_enable(&card->napi); + napi_schedule(&card->napi); + } else + rc = -EIO; + return rc; } +static int qeth_l2_open(struct net_device *dev) +{ + struct qeth_card *card = dev->ml_priv; + + QETH_CARD_TEXT(card, 5, "qethope_"); + if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { + QETH_CARD_TEXT(card, 3, "openREC"); + return -ERESTARTSYS; + } + return __qeth_l2_open(dev); +} static int qeth_l2_stop(struct net_device *dev) { struct qeth_card *card = dev->ml_priv; - QETH_DBF_TEXT(TRACE, 4, "qethstop"); + QETH_CARD_TEXT(card, 4, "qethstop"); netif_tx_disable(dev); - card->dev->flags &= ~IFF_UP; - if (card->state == CARD_STATE_UP) + if (card->state == CARD_STATE_UP) { card->state = CARD_STATE_SOFTSETUP; + napi_disable(&card->napi); + } return 0; } @@ -850,14 +891,11 @@ static int qeth_l2_probe_device(struct ccwgroup_device *gdev) { struct qeth_card *card = dev_get_drvdata(&gdev->dev); + qeth_l2_create_device_attributes(&gdev->dev); INIT_LIST_HEAD(&card->vid_list); INIT_LIST_HEAD(&card->mc_list); card->options.layer2 = 1; - card->discipline.input_handler = (qdio_handler_t *) - qeth_l2_qdio_input_handler; - card->discipline.output_handler = (qdio_handler_t *) - qeth_qdio_output_handler; - card->discipline.recover = qeth_l2_recover; + card->info.hwtrap = 0; return 0; } @@ -865,66 +903,54 @@ static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) { struct qeth_card *card = dev_get_drvdata(&cgdev->dev); + qeth_l2_remove_device_attributes(&cgdev->dev); + qeth_set_allowed_threads(card, 0, 1); wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); - if (cgdev->state == CCWGROUP_ONLINE) { - card->use_hard_stop = 1; + if (cgdev->state == CCWGROUP_ONLINE) qeth_l2_set_offline(cgdev); - } if (card->dev) { unregister_netdev(card->dev); card->dev = NULL; } - - qeth_l2_del_all_mc(card); return; } -static int qeth_l2_ethtool_set_tso(struct net_device *dev, u32 data) -{ - struct qeth_card *card = dev->ml_priv; - - if (data) { - if (card->options.large_send == QETH_LARGE_SEND_NO) { - card->options.large_send = QETH_LARGE_SEND_EDDP; - dev->features |= NETIF_F_TSO; - } - } else { - dev->features &= ~NETIF_F_TSO; - card->options.large_send = QETH_LARGE_SEND_NO; - } - return 0; -} - -static struct ethtool_ops qeth_l2_ethtool_ops = { +static const struct ethtool_ops qeth_l2_ethtool_ops = { .get_link = ethtool_op_get_link, - .get_tx_csum = ethtool_op_get_tx_csum, - .set_tx_csum = ethtool_op_set_tx_hw_csum, - .get_sg = ethtool_op_get_sg, - .set_sg = ethtool_op_set_sg, - .get_tso = ethtool_op_get_tso, - .set_tso = qeth_l2_ethtool_set_tso, .get_strings = qeth_core_get_strings, .get_ethtool_stats = qeth_core_get_ethtool_stats, - .get_stats_count = qeth_core_get_stats_count, + .get_sset_count = qeth_core_get_sset_count, .get_drvinfo = qeth_core_get_drvinfo, .get_settings = qeth_core_ethtool_get_settings, }; -static struct ethtool_ops qeth_l2_osn_ops = { +static const struct ethtool_ops qeth_l2_osn_ops = { .get_strings = qeth_core_get_strings, .get_ethtool_stats = qeth_core_get_ethtool_stats, - .get_stats_count = qeth_core_get_stats_count, + .get_sset_count = qeth_core_get_sset_count, .get_drvinfo = qeth_core_get_drvinfo, }; +static const struct net_device_ops qeth_l2_netdev_ops = { + .ndo_open = qeth_l2_open, + .ndo_stop = qeth_l2_stop, + .ndo_get_stats = qeth_get_stats, + .ndo_start_xmit = qeth_l2_hard_start_xmit, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_rx_mode = qeth_l2_set_multicast_list, + .ndo_do_ioctl = qeth_l2_do_ioctl, + .ndo_set_mac_address = qeth_l2_set_mac_address, + .ndo_change_mtu = qeth_change_mtu, + .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, + .ndo_tx_timeout = qeth_tx_timeout, +}; + static int qeth_l2_setup_netdev(struct qeth_card *card) { switch (card->info.type) { - case QETH_CARD_TYPE_OSAE: - card->dev = alloc_etherdev(0); - break; case QETH_CARD_TYPE_IQD: card->dev = alloc_netdev(0, "hsi%d", ether_setup); break; @@ -940,27 +966,17 @@ static int qeth_l2_setup_netdev(struct qeth_card *card) return -ENODEV; card->dev->ml_priv = card; - card->dev->tx_timeout = &qeth_tx_timeout; card->dev->watchdog_timeo = QETH_TX_TIMEOUT; - card->dev->open = qeth_l2_open; - card->dev->stop = qeth_l2_stop; - card->dev->hard_start_xmit = qeth_l2_hard_start_xmit; - card->dev->do_ioctl = qeth_l2_do_ioctl; - card->dev->get_stats = qeth_get_stats; - card->dev->change_mtu = qeth_change_mtu; - card->dev->set_multicast_list = qeth_l2_set_multicast_list; - card->dev->vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid; - card->dev->vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid; - card->dev->set_mac_address = qeth_l2_set_mac_address; card->dev->mtu = card->info.initial_mtu; - if (card->info.type != QETH_CARD_TYPE_OSN) - SET_ETHTOOL_OPS(card->dev, &qeth_l2_ethtool_ops); - else - SET_ETHTOOL_OPS(card->dev, &qeth_l2_osn_ops); - card->dev->features |= NETIF_F_HW_VLAN_FILTER; + card->dev->netdev_ops = &qeth_l2_netdev_ops; + card->dev->ethtool_ops = + (card->info.type != QETH_CARD_TYPE_OSN) ? + &qeth_l2_ethtool_ops : &qeth_l2_osn_ops; + card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; card->info.broadcast_capable = 1; qeth_l2_request_initial_mac(card); SET_NETDEV_DEV(card->dev, &card->gdev->dev); + netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT); return register_netdev(card->dev); } @@ -970,47 +986,43 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) int rc = 0; enum qeth_card_states recover_flag; - BUG_ON(!card); + mutex_lock(&card->discipline_mutex); + mutex_lock(&card->conf_mutex); QETH_DBF_TEXT(SETUP, 2, "setonlin"); QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); - qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1); - if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)) { - PRINT_WARN("set_online of card %s interrupted by user!\n", - CARD_BUS_ID(card)); - return -ERESTARTSYS; - } - recover_flag = card->state; - rc = ccw_device_set_online(CARD_RDEV(card)); - if (rc) { - QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); - return -EIO; - } - rc = ccw_device_set_online(CARD_WDEV(card)); - if (rc) { - QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); - return -EIO; - } - rc = ccw_device_set_online(CARD_DDEV(card)); - if (rc) { - QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); - return -EIO; - } - rc = qeth_core_hardsetup_card(card); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); + rc = -ENODEV; goto out_remove; } - - if (!card->dev && qeth_l2_setup_netdev(card)) + qeth_bridgeport_query_support(card); + if (card->options.sbp.supported_funcs) + dev_info(&card->gdev->dev, + "The device represents a HiperSockets Bridge Capable Port\n"); + qeth_trace_features(card); + + if (!card->dev && qeth_l2_setup_netdev(card)) { + rc = -ENODEV; goto out_remove; + } if (card->info.type != QETH_CARD_TYPE_OSN) qeth_l2_send_setmac(card, &card->dev->dev_addr[0]); + if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) { + if (card->info.hwtrap && + qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM)) + card->info.hwtrap = 0; + } else + card->info.hwtrap = 0; + + qeth_l2_setup_bridgeport_attrs(card); + card->state = CARD_STATE_HARDSETUP; + memset(&card->rx, 0, sizeof(struct qeth_rx)); qeth_print_status_message(card); /* softsetup */ @@ -1020,35 +1032,50 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) if (rc) { QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); if (rc == 0xe080) { - PRINT_WARN("LAN on card %s if offline! " - "Waiting for STARTLAN from card.\n", - CARD_BUS_ID(card)); + dev_warn(&card->gdev->dev, + "The LAN is offline\n"); card->lan_online = 0; + goto contin; } - return rc; + rc = -ENODEV; + goto out_remove; } else card->lan_online = 1; - if (card->info.type != QETH_CARD_TYPE_OSN) { - qeth_set_large_send(card, card->options.large_send); - qeth_l2_process_vlans(card, 0); +contin: + if ((card->info.type == QETH_CARD_TYPE_OSD) || + (card->info.type == QETH_CARD_TYPE_OSX)) { + /* configure isolation level */ + rc = qeth_set_access_ctrl_online(card, 0); + if (rc) { + rc = -ENODEV; + goto out_remove; + } } + if (card->info.type != QETH_CARD_TYPE_OSN && + card->info.type != QETH_CARD_TYPE_OSM) + qeth_l2_process_vlans(card); + netif_tx_disable(card->dev); rc = qeth_init_qdio_queues(card); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); + rc = -ENODEV; goto out_remove; } card->state = CARD_STATE_SOFTSETUP; - netif_carrier_on(card->dev); + if (card->lan_online) + netif_carrier_on(card->dev); + else + netif_carrier_off(card->dev); qeth_set_allowed_threads(card, 0xffffffff, 0); if (recover_flag == CARD_STATE_RECOVER) { if (recovery_mode && card->info.type != QETH_CARD_TYPE_OSN) { - qeth_l2_open(card->dev); + __qeth_l2_open(card->dev); } else { rtnl_lock(); dev_open(card->dev); @@ -1059,18 +1086,23 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) } /* let user_space know that device is online */ kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); + mutex_unlock(&card->conf_mutex); + mutex_unlock(&card->discipline_mutex); return 0; + out_remove: - card->use_hard_stop = 1; qeth_l2_stop_card(card, 0); ccw_device_set_offline(CARD_DDEV(card)); ccw_device_set_offline(CARD_WDEV(card)); ccw_device_set_offline(CARD_RDEV(card)); + qdio_free(CARD_DDEV(card)); if (recover_flag == CARD_STATE_RECOVER) card->state = CARD_STATE_RECOVER; else card->state = CARD_STATE_DOWN; - return -ENODEV; + mutex_unlock(&card->conf_mutex); + mutex_unlock(&card->discipline_mutex); + return rc; } static int qeth_l2_set_online(struct ccwgroup_device *gdev) @@ -1085,17 +1117,19 @@ static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, int rc = 0, rc2 = 0, rc3 = 0; enum qeth_card_states recover_flag; + mutex_lock(&card->discipline_mutex); + mutex_lock(&card->conf_mutex); QETH_DBF_TEXT(SETUP, 3, "setoffl"); QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); if (card->dev && netif_carrier_ok(card->dev)) netif_carrier_off(card->dev); recover_flag = card->state; - if (qeth_l2_stop_card(card, recovery_mode) == -ERESTARTSYS) { - PRINT_WARN("Stopping card %s interrupted by user!\n", - CARD_BUS_ID(card)); - return -ERESTARTSYS; + if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) { + qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); + card->info.hwtrap = 1; } + qeth_l2_stop_card(card, recovery_mode); rc = ccw_device_set_offline(CARD_DDEV(card)); rc2 = ccw_device_set_offline(CARD_WDEV(card)); rc3 = ccw_device_set_offline(CARD_RDEV(card)); @@ -1103,10 +1137,13 @@ static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, rc = (rc2) ? rc2 : rc3; if (rc) QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); + qdio_free(CARD_DDEV(card)); if (recover_flag == CARD_STATE_UP) card->state = CARD_STATE_RECOVER; /* let user_space know that device is offline */ kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); + mutex_unlock(&card->conf_mutex); + mutex_unlock(&card->discipline_mutex); return 0; } @@ -1121,54 +1158,133 @@ static int qeth_l2_recover(void *ptr) int rc = 0; card = (struct qeth_card *) ptr; - QETH_DBF_TEXT(TRACE, 2, "recover1"); - QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *)); + QETH_CARD_TEXT(card, 2, "recover1"); if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) return 0; - QETH_DBF_TEXT(TRACE, 2, "recover2"); - PRINT_WARN("Recovery of device %s started ...\n", - CARD_BUS_ID(card)); - card->use_hard_stop = 1; + QETH_CARD_TEXT(card, 2, "recover2"); + dev_warn(&card->gdev->dev, + "A recovery process has been started for the device\n"); + qeth_set_recovery_task(card); __qeth_l2_set_offline(card->gdev, 1); rc = __qeth_l2_set_online(card->gdev, 1); - /* don't run another scheduled recovery */ + if (!rc) + dev_info(&card->gdev->dev, + "Device successfully recovered!\n"); + else { + qeth_close_dev(card); + dev_warn(&card->gdev->dev, "The qeth device driver " + "failed to recover an error on the device\n"); + } + qeth_clear_recovery_task(card); qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); - if (!rc) - PRINT_INFO("Device %s successfully recovered!\n", - CARD_BUS_ID(card)); - else - PRINT_INFO("Device %s could not be recovered!\n", - CARD_BUS_ID(card)); return 0; } static int __init qeth_l2_init(void) { - PRINT_INFO("register layer 2 discipline\n"); + pr_info("register layer 2 discipline\n"); return 0; } static void __exit qeth_l2_exit(void) { - PRINT_INFO("unregister layer 2 discipline\n"); + pr_info("unregister layer 2 discipline\n"); } static void qeth_l2_shutdown(struct ccwgroup_device *gdev) { struct qeth_card *card = dev_get_drvdata(&gdev->dev); + qeth_set_allowed_threads(card, 0, 1); + if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap) + qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); qeth_qdio_clear_card(card, 0); qeth_clear_qdio_buffers(card); + qdio_free(CARD_DDEV(card)); +} + +static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev) +{ + struct qeth_card *card = dev_get_drvdata(&gdev->dev); + + if (card->dev) + netif_device_detach(card->dev); + qeth_set_allowed_threads(card, 0, 1); + wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); + if (gdev->state == CCWGROUP_OFFLINE) + return 0; + if (card->state == CARD_STATE_UP) { + if (card->info.hwtrap) + qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); + __qeth_l2_set_offline(card->gdev, 1); + } else + __qeth_l2_set_offline(card->gdev, 0); + return 0; } -struct ccwgroup_driver qeth_l2_ccwgroup_driver = { - .probe = qeth_l2_probe_device, +static int qeth_l2_pm_resume(struct ccwgroup_device *gdev) +{ + struct qeth_card *card = dev_get_drvdata(&gdev->dev); + int rc = 0; + + if (gdev->state == CCWGROUP_OFFLINE) + goto out; + + if (card->state == CARD_STATE_RECOVER) { + rc = __qeth_l2_set_online(card->gdev, 1); + if (rc) { + rtnl_lock(); + dev_close(card->dev); + rtnl_unlock(); + } + } else + rc = __qeth_l2_set_online(card->gdev, 0); +out: + qeth_set_allowed_threads(card, 0xffffffff, 0); + if (card->dev) + netif_device_attach(card->dev); + if (rc) + dev_warn(&card->gdev->dev, "The qeth device driver " + "failed to recover an error on the device\n"); + return rc; +} + +/* Returns zero if the command is successfully "consumed" */ +static int qeth_l2_control_event(struct qeth_card *card, + struct qeth_ipa_cmd *cmd) +{ + switch (cmd->hdr.command) { + case IPA_CMD_SETBRIDGEPORT: + if (cmd->data.sbp.hdr.command_code == + IPA_SBP_BRIDGE_PORT_STATE_CHANGE) { + qeth_bridge_state_change(card, cmd); + return 0; + } else + return 1; + case IPA_CMD_ADDRESS_CHANGE_NOTIF: + qeth_bridge_host_event(card, cmd); + return 0; + default: + return 1; + } +} + +struct qeth_discipline qeth_l2_discipline = { + .start_poll = qeth_qdio_start_poll, + .input_handler = (qdio_handler_t *) qeth_qdio_input_handler, + .output_handler = (qdio_handler_t *) qeth_qdio_output_handler, + .recover = qeth_l2_recover, + .setup = qeth_l2_probe_device, .remove = qeth_l2_remove_device, .set_online = qeth_l2_set_online, .set_offline = qeth_l2_set_offline, .shutdown = qeth_l2_shutdown, + .freeze = qeth_l2_pm_suspend, + .thaw = qeth_l2_pm_resume, + .restore = qeth_l2_pm_resume, + .control_event_handler = qeth_l2_control_event, }; -EXPORT_SYMBOL_GPL(qeth_l2_ccwgroup_driver); +EXPORT_SYMBOL_GPL(qeth_l2_discipline); static int qeth_osn_send_control_data(struct qeth_card *card, int len, struct qeth_cmd_buffer *iob) @@ -1176,12 +1292,12 @@ static int qeth_osn_send_control_data(struct qeth_card *card, int len, unsigned long flags; int rc = 0; - QETH_DBF_TEXT(TRACE, 5, "osndctrd"); + QETH_CARD_TEXT(card, 5, "osndctrd"); wait_event(card->wait_q, atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0); qeth_prepare_control_data(card, len, iob); - QETH_DBF_TEXT(TRACE, 6, "osnoirqp"); + QETH_CARD_TEXT(card, 6, "osnoirqp"); spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, (addr_t) iob, 0, 0); @@ -1189,7 +1305,7 @@ static int qeth_osn_send_control_data(struct qeth_card *card, int len, if (rc) { QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " "ccw_device_start rc = %i\n", rc); - QETH_DBF_TEXT_(TRACE, 2, " err%d", rc); + QETH_CARD_TEXT_(card, 2, " err%d", rc); qeth_release_buffer(iob->channel, iob); atomic_set(&card->write.irq_pending, 0); wake_up(&card->wait_q); @@ -1202,7 +1318,7 @@ static int qeth_osn_send_ipa_cmd(struct qeth_card *card, { u16 s1, s2; - QETH_DBF_TEXT(TRACE, 4, "osndipa"); + QETH_CARD_TEXT(card, 4, "osndipa"); qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2); s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); @@ -1220,12 +1336,12 @@ int qeth_osn_assist(struct net_device *dev, void *data, int data_len) struct qeth_card *card; int rc; - QETH_DBF_TEXT(TRACE, 2, "osnsdmc"); if (!dev) return -ENODEV; card = dev->ml_priv; if (!card) return -ENODEV; + QETH_CARD_TEXT(card, 2, "osnsdmc"); if ((card->state != CARD_STATE_UP) && (card->state != CARD_STATE_SOFTSETUP)) return -ENODEV; @@ -1242,13 +1358,13 @@ int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, { struct qeth_card *card; - QETH_DBF_TEXT(TRACE, 2, "osnreg"); *dev = qeth_l2_netdev_by_devno(read_dev_no); if (*dev == NULL) return -ENODEV; card = (*dev)->ml_priv; if (!card) return -ENODEV; + QETH_CARD_TEXT(card, 2, "osnreg"); if ((assist_cb == NULL) || (data_cb == NULL)) return -EINVAL; card->osn_info.assist_cb = assist_cb; @@ -1261,18 +1377,606 @@ void qeth_osn_deregister(struct net_device *dev) { struct qeth_card *card; - QETH_DBF_TEXT(TRACE, 2, "osndereg"); if (!dev) return; card = dev->ml_priv; if (!card) return; + QETH_CARD_TEXT(card, 2, "osndereg"); card->osn_info.assist_cb = NULL; card->osn_info.data_cb = NULL; return; } EXPORT_SYMBOL(qeth_osn_deregister); +/* SETBRIDGEPORT support, async notifications */ + +enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset}; + +/** + * qeth_bridge_emit_host_event() - bridgeport address change notification + * @card: qeth_card structure pointer, for udev events. + * @evtype: "normal" register/unregister, or abort, or reset. For abort + * and reset token and addr_lnid are unused and may be NULL. + * @code: event bitmask: high order bit 0x80 value 1 means removal of an + * object, 0 - addition of an object. + * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC. + * @token: "network token" structure identifying physical address of the port. + * @addr_lnid: pointer to structure with MAC address and VLAN ID. + * + * This function is called when registrations and deregistrations are + * reported by the hardware, and also when notifications are enabled - + * for all currently registered addresses. + */ +static void qeth_bridge_emit_host_event(struct qeth_card *card, + enum qeth_an_event_type evtype, + u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid) +{ + char str[7][32]; + char *env[8]; + int i = 0; + + switch (evtype) { + case anev_reg_unreg: + snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s", + (code & IPA_ADDR_CHANGE_CODE_REMOVAL) + ? "deregister" : "register"); + env[i] = str[i]; i++; + if (code & IPA_ADDR_CHANGE_CODE_VLANID) { + snprintf(str[i], sizeof(str[i]), "VLAN=%d", + addr_lnid->lnid); + env[i] = str[i]; i++; + } + if (code & IPA_ADDR_CHANGE_CODE_MACADDR) { + snprintf(str[i], sizeof(str[i]), "MAC=%pM6", + &addr_lnid->mac); + env[i] = str[i]; i++; + } + snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x", + token->cssid, token->ssid, token->devnum); + env[i] = str[i]; i++; + snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid); + env[i] = str[i]; i++; + snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x", + token->chpid); + env[i] = str[i]; i++; + snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid); + env[i] = str[i]; i++; + break; + case anev_abort: + snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort"); + env[i] = str[i]; i++; + break; + case anev_reset: + snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset"); + env[i] = str[i]; i++; + break; + } + env[i] = NULL; + kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env); +} + +struct qeth_bridge_state_data { + struct work_struct worker; + struct qeth_card *card; + struct qeth_sbp_state_change qports; +}; + +static void qeth_bridge_state_change_worker(struct work_struct *work) +{ + struct qeth_bridge_state_data *data = + container_of(work, struct qeth_bridge_state_data, worker); + /* We are only interested in the first entry - local port */ + struct qeth_sbp_port_entry *entry = &data->qports.entry[0]; + char env_locrem[32]; + char env_role[32]; + char env_state[32]; + char *env[] = { + env_locrem, + env_role, + env_state, + NULL + }; + + /* Role should not change by itself, but if it did, */ + /* information from the hardware is authoritative. */ + mutex_lock(&data->card->conf_mutex); + data->card->options.sbp.role = entry->role; + mutex_unlock(&data->card->conf_mutex); + + snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange"); + snprintf(env_role, sizeof(env_role), "ROLE=%s", + (entry->role == QETH_SBP_ROLE_NONE) ? "none" : + (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" : + (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" : + "<INVALID>"); + snprintf(env_state, sizeof(env_state), "STATE=%s", + (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" : + (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" : + (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" : + "<INVALID>"); + kobject_uevent_env(&data->card->gdev->dev.kobj, + KOBJ_CHANGE, env); + kfree(data); +} + +static void qeth_bridge_state_change(struct qeth_card *card, + struct qeth_ipa_cmd *cmd) +{ + struct qeth_sbp_state_change *qports = + &cmd->data.sbp.data.state_change; + struct qeth_bridge_state_data *data; + int extrasize; + + QETH_CARD_TEXT(card, 2, "brstchng"); + if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { + QETH_CARD_TEXT_(card, 2, "BPsz%.8d", qports->entry_length); + return; + } + extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries; + data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize, + GFP_ATOMIC); + if (!data) { + QETH_CARD_TEXT(card, 2, "BPSalloc"); + return; + } + INIT_WORK(&data->worker, qeth_bridge_state_change_worker); + data->card = card; + memcpy(&data->qports, qports, + sizeof(struct qeth_sbp_state_change) + extrasize); + queue_work(qeth_wq, &data->worker); +} + +struct qeth_bridge_host_data { + struct work_struct worker; + struct qeth_card *card; + struct qeth_ipacmd_addr_change hostevs; +}; + +static void qeth_bridge_host_event_worker(struct work_struct *work) +{ + struct qeth_bridge_host_data *data = + container_of(work, struct qeth_bridge_host_data, worker); + int i; + + if (data->hostevs.lost_event_mask) { + dev_info(&data->card->gdev->dev, +"Address notification from the HiperSockets Bridge Port stopped %s (%s)\n", + data->card->dev->name, + (data->hostevs.lost_event_mask == 0x01) + ? "Overflow" + : (data->hostevs.lost_event_mask == 0x02) + ? "Bridge port state change" + : "Unknown reason"); + mutex_lock(&data->card->conf_mutex); + data->card->options.sbp.hostnotification = 0; + mutex_unlock(&data->card->conf_mutex); + qeth_bridge_emit_host_event(data->card, anev_abort, + 0, NULL, NULL); + } else + for (i = 0; i < data->hostevs.num_entries; i++) { + struct qeth_ipacmd_addr_change_entry *entry = + &data->hostevs.entry[i]; + qeth_bridge_emit_host_event(data->card, + anev_reg_unreg, + entry->change_code, + &entry->token, &entry->addr_lnid); + } + kfree(data); +} + +static void qeth_bridge_host_event(struct qeth_card *card, + struct qeth_ipa_cmd *cmd) +{ + struct qeth_ipacmd_addr_change *hostevs = + &cmd->data.addrchange; + struct qeth_bridge_host_data *data; + int extrasize; + + QETH_CARD_TEXT(card, 2, "brhostev"); + if (cmd->hdr.return_code != 0x0000) { + if (cmd->hdr.return_code == 0x0010) { + if (hostevs->lost_event_mask == 0x00) + hostevs->lost_event_mask = 0xff; + } else { + QETH_CARD_TEXT_(card, 2, "BPHe%04x", + cmd->hdr.return_code); + return; + } + } + extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) * + hostevs->num_entries; + data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize, + GFP_ATOMIC); + if (!data) { + QETH_CARD_TEXT(card, 2, "BPHalloc"); + return; + } + INIT_WORK(&data->worker, qeth_bridge_host_event_worker); + data->card = card; + memcpy(&data->hostevs, hostevs, + sizeof(struct qeth_ipacmd_addr_change) + extrasize); + queue_work(qeth_wq, &data->worker); +} + +/* SETBRIDGEPORT support; sending commands */ + +struct _qeth_sbp_cbctl { + u16 ipa_rc; + u16 cmd_rc; + union { + u32 supported; + struct { + enum qeth_sbp_roles *role; + enum qeth_sbp_states *state; + } qports; + } data; +}; + +/** + * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes. + * @card: qeth_card structure pointer, for debug messages. + * @cbctl: state structure with hardware return codes. + * @setcmd: IPA command code + * + * Returns negative errno-compatible error indication or 0 on success. + */ +static int qeth_bridgeport_makerc(struct qeth_card *card, + struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd) +{ + int rc; + + switch (cbctl->ipa_rc) { + case IPA_RC_SUCCESS: + switch (cbctl->cmd_rc) { + case 0x0000: + rc = 0; + break; + case 0x0004: + rc = -ENOSYS; + break; + case 0x000C: /* Not configured as bridge Port */ + rc = -ENODEV; /* maybe not the best code here? */ + dev_err(&card->gdev->dev, + "The HiperSockets device is not configured as a Bridge Port\n"); + break; + case 0x0014: /* Another device is Primary */ + switch (setcmd) { + case IPA_SBP_SET_PRIMARY_BRIDGE_PORT: + rc = -EEXIST; + dev_err(&card->gdev->dev, + "The HiperSockets LAN already has a primary Bridge Port\n"); + break; + case IPA_SBP_SET_SECONDARY_BRIDGE_PORT: + rc = -EBUSY; + dev_err(&card->gdev->dev, + "The HiperSockets device is already a primary Bridge Port\n"); + break; + default: + rc = -EIO; + } + break; + case 0x0018: /* This device is currently Secondary */ + rc = -EBUSY; + dev_err(&card->gdev->dev, + "The HiperSockets device is already a secondary Bridge Port\n"); + break; + case 0x001C: /* Limit for Secondary devices reached */ + rc = -EEXIST; + dev_err(&card->gdev->dev, + "The HiperSockets LAN cannot have more secondary Bridge Ports\n"); + break; + case 0x0024: /* This device is currently Primary */ + rc = -EBUSY; + dev_err(&card->gdev->dev, + "The HiperSockets device is already a primary Bridge Port\n"); + break; + case 0x0020: /* Not authorized by zManager */ + rc = -EACCES; + dev_err(&card->gdev->dev, + "The HiperSockets device is not authorized to be a Bridge Port\n"); + break; + default: + rc = -EIO; + } + break; + case IPA_RC_NOTSUPP: + rc = -ENOSYS; + break; + case IPA_RC_UNSUPPORTED_COMMAND: + rc = -ENOSYS; + break; + default: + rc = -EIO; + } + if (rc) { + QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc); + QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc); + } + return rc; +} + +static int qeth_bridgeport_query_support_cb(struct qeth_card *card, + struct qeth_reply *reply, unsigned long data) +{ + struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; + struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; + QETH_CARD_TEXT(card, 2, "brqsupcb"); + cbctl->ipa_rc = cmd->hdr.return_code; + cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; + if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) { + cbctl->data.supported = + cmd->data.sbp.data.query_cmds_supp.supported_cmds; + } else { + cbctl->data.supported = 0; + } + return 0; +} + +/** + * qeth_bridgeport_query_support() - store bitmask of supported subfunctions. + * @card: qeth_card structure pointer. + * + * Sets bitmask of supported setbridgeport subfunctions in the qeth_card + * strucutre: card->options.sbp.supported_funcs. + */ +static void qeth_bridgeport_query_support(struct qeth_card *card) +{ + struct qeth_cmd_buffer *iob; + struct qeth_ipa_cmd *cmd; + struct _qeth_sbp_cbctl cbctl; + + QETH_CARD_TEXT(card, 2, "brqsuppo"); + iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0); + cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); + cmd->data.sbp.hdr.cmdlength = + sizeof(struct qeth_ipacmd_sbp_hdr) + + sizeof(struct qeth_sbp_query_cmds_supp); + cmd->data.sbp.hdr.command_code = + IPA_SBP_QUERY_COMMANDS_SUPPORTED; + cmd->data.sbp.hdr.used_total = 1; + cmd->data.sbp.hdr.seq_no = 1; + if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb, + (void *)&cbctl) || + qeth_bridgeport_makerc(card, &cbctl, + IPA_SBP_QUERY_COMMANDS_SUPPORTED)) { + /* non-zero makerc signifies failure, and produce messages */ + card->options.sbp.role = QETH_SBP_ROLE_NONE; + return; + } + card->options.sbp.supported_funcs = cbctl.data.supported; +} + +static int qeth_bridgeport_query_ports_cb(struct qeth_card *card, + struct qeth_reply *reply, unsigned long data) +{ + struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; + struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports; + struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; + + QETH_CARD_TEXT(card, 2, "brqprtcb"); + cbctl->ipa_rc = cmd->hdr.return_code; + cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; + if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0)) + return 0; + if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { + cbctl->cmd_rc = 0xffff; + QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length); + return 0; + } + /* first entry contains the state of the local port */ + if (qports->num_entries > 0) { + if (cbctl->data.qports.role) + *cbctl->data.qports.role = qports->entry[0].role; + if (cbctl->data.qports.state) + *cbctl->data.qports.state = qports->entry[0].state; + } + return 0; +} + +/** + * qeth_bridgeport_query_ports() - query local bridgeport status. + * @card: qeth_card structure pointer. + * @role: Role of the port: 0-none, 1-primary, 2-secondary. + * @state: State of the port: 0-inactive, 1-standby, 2-active. + * + * Returns negative errno-compatible error indication or 0 on success. + * + * 'role' and 'state' are not updated in case of hardware operation failure. + */ +int qeth_bridgeport_query_ports(struct qeth_card *card, + enum qeth_sbp_roles *role, enum qeth_sbp_states *state) +{ + int rc = 0; + struct qeth_cmd_buffer *iob; + struct qeth_ipa_cmd *cmd; + struct _qeth_sbp_cbctl cbctl = { + .data = { + .qports = { + .role = role, + .state = state, + }, + }, + }; + + QETH_CARD_TEXT(card, 2, "brqports"); + if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS)) + return -EOPNOTSUPP; + iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0); + cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); + cmd->data.sbp.hdr.cmdlength = + sizeof(struct qeth_ipacmd_sbp_hdr); + cmd->data.sbp.hdr.command_code = + IPA_SBP_QUERY_BRIDGE_PORTS; + cmd->data.sbp.hdr.used_total = 1; + cmd->data.sbp.hdr.seq_no = 1; + rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb, + (void *)&cbctl); + if (rc) + return rc; + rc = qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS); + if (rc) + return rc; + return 0; +} +EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports); + +static int qeth_bridgeport_set_cb(struct qeth_card *card, + struct qeth_reply *reply, unsigned long data) +{ + struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; + struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; + QETH_CARD_TEXT(card, 2, "brsetrcb"); + cbctl->ipa_rc = cmd->hdr.return_code; + cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; + return 0; +} + +/** + * qeth_bridgeport_setrole() - Assign primary role to the port. + * @card: qeth_card structure pointer. + * @role: Role to assign. + * + * Returns negative errno-compatible error indication or 0 on success. + */ +int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role) +{ + int rc = 0; + int cmdlength; + struct qeth_cmd_buffer *iob; + struct qeth_ipa_cmd *cmd; + struct _qeth_sbp_cbctl cbctl; + enum qeth_ipa_sbp_cmd setcmd; + + QETH_CARD_TEXT(card, 2, "brsetrol"); + switch (role) { + case QETH_SBP_ROLE_NONE: + setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE; + cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) + + sizeof(struct qeth_sbp_reset_role); + break; + case QETH_SBP_ROLE_PRIMARY: + setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT; + cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) + + sizeof(struct qeth_sbp_set_primary); + break; + case QETH_SBP_ROLE_SECONDARY: + setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT; + cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) + + sizeof(struct qeth_sbp_set_secondary); + break; + default: + return -EINVAL; + } + if (!(card->options.sbp.supported_funcs & setcmd)) + return -EOPNOTSUPP; + iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0); + cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); + cmd->data.sbp.hdr.cmdlength = cmdlength; + cmd->data.sbp.hdr.command_code = setcmd; + cmd->data.sbp.hdr.used_total = 1; + cmd->data.sbp.hdr.seq_no = 1; + rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb, + (void *)&cbctl); + if (rc) + return rc; + rc = qeth_bridgeport_makerc(card, &cbctl, setcmd); + return rc; +} + +/** + * qeth_anset_makerc() - derive "traditional" error from hardware codes. + * @card: qeth_card structure pointer, for debug messages. + * + * Returns negative errno-compatible error indication or 0 on success. + */ +static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response) +{ + int rc; + + if (pnso_rc == 0) + switch (response) { + case 0x0001: + rc = 0; + break; + case 0x0004: + case 0x0100: + case 0x0106: + rc = -ENOSYS; + dev_err(&card->gdev->dev, + "Setting address notification failed\n"); + break; + case 0x0107: + rc = -EAGAIN; + break; + default: + rc = -EIO; + } + else + rc = -EIO; + + if (rc) { + QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc); + QETH_CARD_TEXT_(card, 2, "SBPr%04x", response); + } + return rc; +} + +static void qeth_bridgeport_an_set_cb(void *priv, + enum qdio_brinfo_entry_type type, void *entry) +{ + struct qeth_card *card = (struct qeth_card *)priv; + struct qdio_brinfo_entry_l2 *l2entry; + u8 code; + + if (type != l2_addr_lnid) { + WARN_ON_ONCE(1); + return; + } + + l2entry = (struct qdio_brinfo_entry_l2 *)entry; + code = IPA_ADDR_CHANGE_CODE_MACADDR; + if (l2entry->addr_lnid.lnid) + code |= IPA_ADDR_CHANGE_CODE_VLANID; + qeth_bridge_emit_host_event(card, anev_reg_unreg, code, + (struct net_if_token *)&l2entry->nit, + (struct mac_addr_lnid *)&l2entry->addr_lnid); +} + +/** + * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification + * @card: qeth_card structure pointer. + * @enable: 0 - disable, non-zero - enable notifications + * + * Returns negative errno-compatible error indication or 0 on success. + * + * On enable, emits a series of address notifications udev events for all + * currently registered hosts. + */ +int qeth_bridgeport_an_set(struct qeth_card *card, int enable) +{ + int rc; + u16 response; + struct ccw_device *ddev; + struct subchannel_id schid; + + if (!card) + return -EINVAL; + if (!card->options.sbp.supported_funcs) + return -EOPNOTSUPP; + ddev = CARD_DDEV(card); + ccw_device_get_schid(ddev, &schid); + + if (enable) { + qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL); + rc = qdio_pnso_brinfo(schid, 1, &response, + qeth_bridgeport_an_set_cb, card); + } else + rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL); + return qeth_anset_makerc(card, rc, response); +} +EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set); + module_init(qeth_l2_init); module_exit(qeth_l2_exit); MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); diff --git a/drivers/s390/net/qeth_l2_sys.c b/drivers/s390/net/qeth_l2_sys.c new file mode 100644 index 00000000000..ae1bc04b865 --- /dev/null +++ b/drivers/s390/net/qeth_l2_sys.c @@ -0,0 +1,223 @@ +/* + * Copyright IBM Corp. 2013 + * Author(s): Eugene Crosser <eugene.crosser@ru.ibm.com> + */ + +#include <linux/slab.h> +#include <asm/ebcdic.h> +#include "qeth_l2.h" + +#define QETH_DEVICE_ATTR(_id, _name, _mode, _show, _store) \ +struct device_attribute dev_attr_##_id = __ATTR(_name, _mode, _show, _store) + +static int qeth_card_hw_is_reachable(struct qeth_card *card) +{ + return (card->state == CARD_STATE_SOFTSETUP) || + (card->state == CARD_STATE_UP); +} + +static ssize_t qeth_bridge_port_role_state_show(struct device *dev, + struct device_attribute *attr, char *buf, + int show_state) +{ + struct qeth_card *card = dev_get_drvdata(dev); + enum qeth_sbp_states state = QETH_SBP_STATE_INACTIVE; + int rc = 0; + char *word; + + if (!card) + return -EINVAL; + + mutex_lock(&card->conf_mutex); + + if (qeth_card_hw_is_reachable(card) && + card->options.sbp.supported_funcs) + rc = qeth_bridgeport_query_ports(card, + &card->options.sbp.role, &state); + if (!rc) { + if (show_state) + switch (state) { + case QETH_SBP_STATE_INACTIVE: + word = "inactive"; break; + case QETH_SBP_STATE_STANDBY: + word = "standby"; break; + case QETH_SBP_STATE_ACTIVE: + word = "active"; break; + default: + rc = -EIO; + } + else + switch (card->options.sbp.role) { + case QETH_SBP_ROLE_NONE: + word = "none"; break; + case QETH_SBP_ROLE_PRIMARY: + word = "primary"; break; + case QETH_SBP_ROLE_SECONDARY: + word = "secondary"; break; + default: + rc = -EIO; + } + if (rc) + QETH_CARD_TEXT_(card, 2, "SBP%02x:%02x", + card->options.sbp.role, state); + else + rc = sprintf(buf, "%s\n", word); + } + + mutex_unlock(&card->conf_mutex); + + return rc; +} + +static ssize_t qeth_bridge_port_role_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return qeth_bridge_port_role_state_show(dev, attr, buf, 0); +} + +static ssize_t qeth_bridge_port_role_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct qeth_card *card = dev_get_drvdata(dev); + int rc = 0; + enum qeth_sbp_roles role; + + if (!card) + return -EINVAL; + if (sysfs_streq(buf, "primary")) + role = QETH_SBP_ROLE_PRIMARY; + else if (sysfs_streq(buf, "secondary")) + role = QETH_SBP_ROLE_SECONDARY; + else if (sysfs_streq(buf, "none")) + role = QETH_SBP_ROLE_NONE; + else + return -EINVAL; + + mutex_lock(&card->conf_mutex); + + if (qeth_card_hw_is_reachable(card)) { + rc = qeth_bridgeport_setrole(card, role); + if (!rc) + card->options.sbp.role = role; + } else + card->options.sbp.role = role; + + mutex_unlock(&card->conf_mutex); + + return rc ? rc : count; +} + +static DEVICE_ATTR(bridge_role, 0644, qeth_bridge_port_role_show, + qeth_bridge_port_role_store); + +static ssize_t qeth_bridge_port_state_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return qeth_bridge_port_role_state_show(dev, attr, buf, 1); +} + +static DEVICE_ATTR(bridge_state, 0644, qeth_bridge_port_state_show, + NULL); + +static ssize_t qeth_bridgeport_hostnotification_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct qeth_card *card = dev_get_drvdata(dev); + int enabled; + + if (!card) + return -EINVAL; + + mutex_lock(&card->conf_mutex); + + enabled = card->options.sbp.hostnotification; + + mutex_unlock(&card->conf_mutex); + + return sprintf(buf, "%d\n", enabled); +} + +static ssize_t qeth_bridgeport_hostnotification_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct qeth_card *card = dev_get_drvdata(dev); + int rc = 0; + int enable; + + if (!card) + return -EINVAL; + + if (sysfs_streq(buf, "0")) + enable = 0; + else if (sysfs_streq(buf, "1")) + enable = 1; + else + return -EINVAL; + + mutex_lock(&card->conf_mutex); + + if (qeth_card_hw_is_reachable(card)) { + rc = qeth_bridgeport_an_set(card, enable); + if (!rc) + card->options.sbp.hostnotification = enable; + } else + card->options.sbp.hostnotification = enable; + + mutex_unlock(&card->conf_mutex); + + return rc ? rc : count; +} + +static DEVICE_ATTR(bridge_hostnotify, 0644, + qeth_bridgeport_hostnotification_show, + qeth_bridgeport_hostnotification_store); + +static struct attribute *qeth_l2_bridgeport_attrs[] = { + &dev_attr_bridge_role.attr, + &dev_attr_bridge_state.attr, + &dev_attr_bridge_hostnotify.attr, + NULL, +}; + +static struct attribute_group qeth_l2_bridgeport_attr_group = { + .attrs = qeth_l2_bridgeport_attrs, +}; + +int qeth_l2_create_device_attributes(struct device *dev) +{ + return sysfs_create_group(&dev->kobj, &qeth_l2_bridgeport_attr_group); +} + +void qeth_l2_remove_device_attributes(struct device *dev) +{ + sysfs_remove_group(&dev->kobj, &qeth_l2_bridgeport_attr_group); +} + +/** + * qeth_l2_setup_bridgeport_attrs() - set/restore attrs when turning online. + * @card: qeth_card structure pointer + * + * Note: this function is called with conf_mutex held by the caller + */ +void qeth_l2_setup_bridgeport_attrs(struct qeth_card *card) +{ + int rc; + + if (!card) + return; + if (!card->options.sbp.supported_funcs) + return; + if (card->options.sbp.role != QETH_SBP_ROLE_NONE) { + /* Conditional to avoid spurious error messages */ + qeth_bridgeport_setrole(card, card->options.sbp.role); + /* Let the callback function refresh the stored role value. */ + qeth_bridgeport_query_ports(card, + &card->options.sbp.role, NULL); + } + if (card->options.sbp.hostnotification) { + rc = qeth_bridgeport_an_set(card, 1); + if (rc) + card->options.sbp.hostnotification = 0; + } else + qeth_bridgeport_an_set(card, 0); +} diff --git a/drivers/s390/net/qeth_l3.h b/drivers/s390/net/qeth_l3.h index 9f143c83bba..29c1c00e3a0 100644 --- a/drivers/s390/net/qeth_l3.h +++ b/drivers/s390/net/qeth_l3.h @@ -1,6 +1,4 @@ /* - * drivers/s390/net/qeth_l3.h - * * Copyright IBM Corp. 2007 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, * Frank Pavlic <fpavlic@de.ibm.com>, @@ -13,6 +11,8 @@ #include "qeth_core.h" +#define QETH_SNIFF_AVAIL 0x0008 + struct qeth_ipaddr { struct list_head entry; enum qeth_ip_types type; @@ -60,5 +60,10 @@ void qeth_l3_del_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *); int qeth_l3_add_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *); void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions, const u8 *); +int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *); +struct qeth_ipaddr *qeth_l3_get_addr_buffer(enum qeth_prot_versions); +int qeth_l3_add_ip(struct qeth_card *, struct qeth_ipaddr *); +int qeth_l3_delete_ip(struct qeth_card *, struct qeth_ipaddr *); +void qeth_l3_set_ip_addr_list(struct qeth_card *); #endif /* __QETH_L3_H__ */ diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index dd72c3c2016..14e0b5810e8 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -1,32 +1,38 @@ /* - * drivers/s390/net/qeth_l3_main.c - * - * Copyright IBM Corp. 2007 + * Copyright IBM Corp. 2007, 2009 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, * Frank Pavlic <fpavlic@de.ibm.com>, * Thomas Spatzier <tspat@de.ibm.com>, * Frank Blaschka <frank.blaschka@de.ibm.com> */ +#define KMSG_COMPONENT "qeth" +#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> +#include <linux/bitops.h> #include <linux/string.h> #include <linux/errno.h> #include <linux/kernel.h> #include <linux/etherdevice.h> #include <linux/mii.h> #include <linux/ip.h> -#include <linux/reboot.h> +#include <linux/ipv6.h> #include <linux/inetdevice.h> #include <linux/igmp.h> +#include <linux/slab.h> +#include <linux/if_vlan.h> #include <net/ip.h> #include <net/arp.h> - -#include <asm/s390_rdev.h> +#include <net/route.h> +#include <net/ip6_fib.h> +#include <net/ip6_checksum.h> +#include <net/iucv/af_iucv.h> #include "qeth_l3.h" -#include "qeth_core_offl.h" + static int qeth_l3_set_offline(struct ccwgroup_device *); static int qeth_l3_recover(void *); @@ -40,7 +46,6 @@ static int qeth_l3_deregister_addr_entry(struct qeth_card *, static int __qeth_l3_set_online(struct ccwgroup_device *, int); static int __qeth_l3_set_offline(struct ccwgroup_device *, int); - static int qeth_l3_isxdigit(char *buf) { while (*buf) { @@ -58,7 +63,7 @@ void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf) int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr) { int count = 0, rc = 0; - int in[4]; + unsigned int in[4]; char c; rc = sscanf(buf, "%u.%u.%u.%u%c", @@ -75,12 +80,7 @@ int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr) void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf) { - sprintf(buf, "%02x%02x:%02x%02x:%02x%02x:%02x%02x" - ":%02x%02x:%02x%02x:%02x%02x:%02x%02x", - addr[0], addr[1], addr[2], addr[3], - addr[4], addr[5], addr[6], addr[7], - addr[8], addr[9], addr[10], addr[11], - addr[12], addr[13], addr[14], addr[15]); + sprintf(buf, "%pI6", addr); } int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr) @@ -167,7 +167,7 @@ static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len) } } -static int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card, +int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr) { struct qeth_ipato_entry *ipatoe; @@ -215,6 +215,8 @@ static int __qeth_l3_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *tmp, *t; int found = 0; + if (card->options.sniffer) + return 0; list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) { if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) && (tmp->type == QETH_IP_TYPE_DEL_ALL_MC)) @@ -257,7 +259,7 @@ static int __qeth_l3_insert_ip_todo(struct qeth_card *card, addr->users += add ? 1 : -1; if (add && (addr->type == QETH_IP_TYPE_NORMAL) && qeth_l3_is_addr_covered_by_ipato(card, addr)) { - QETH_DBF_TEXT(TRACE, 2, "tkovaddr"); + QETH_CARD_TEXT(card, 2, "tkovaddr"); addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG; } list_add_tail(&addr->entry, card->ip_tbd_list); @@ -266,18 +268,18 @@ static int __qeth_l3_insert_ip_todo(struct qeth_card *card, } } -static int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr) +int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr) { unsigned long flags; int rc = 0; - QETH_DBF_TEXT(TRACE, 4, "delip"); + QETH_CARD_TEXT(card, 4, "delip"); if (addr->proto == QETH_PROT_IPV4) - QETH_DBF_HEX(TRACE, 4, &addr->u.a4.addr, 4); + QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4); else { - QETH_DBF_HEX(TRACE, 4, &addr->u.a6.addr, 8); - QETH_DBF_HEX(TRACE, 4, ((char *)&addr->u.a6.addr) + 8, 8); + QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8); + QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8); } spin_lock_irqsave(&card->ip_lock, flags); rc = __qeth_l3_insert_ip_todo(card, addr, 0); @@ -285,17 +287,17 @@ static int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr) return rc; } -static int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr) +int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr) { unsigned long flags; int rc = 0; - QETH_DBF_TEXT(TRACE, 4, "addip"); + QETH_CARD_TEXT(card, 4, "addip"); if (addr->proto == QETH_PROT_IPV4) - QETH_DBF_HEX(TRACE, 4, &addr->u.a4.addr, 4); + QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4); else { - QETH_DBF_HEX(TRACE, 4, &addr->u.a6.addr, 8); - QETH_DBF_HEX(TRACE, 4, ((char *)&addr->u.a6.addr) + 8, 8); + QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8); + QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8); } spin_lock_irqsave(&card->ip_lock, flags); rc = __qeth_l3_insert_ip_todo(card, addr, 1); @@ -304,7 +306,7 @@ static int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr) } -static struct qeth_ipaddr *qeth_l3_get_addr_buffer( +struct qeth_ipaddr *qeth_l3_get_addr_buffer( enum qeth_prot_versions prot) { struct qeth_ipaddr *addr; @@ -323,10 +325,10 @@ static void qeth_l3_delete_mc_addresses(struct qeth_card *card) struct qeth_ipaddr *iptodo; unsigned long flags; - QETH_DBF_TEXT(TRACE, 4, "delmc"); + QETH_CARD_TEXT(card, 4, "delmc"); iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4); if (!iptodo) { - QETH_DBF_TEXT(TRACE, 2, "dmcnomem"); + QETH_CARD_TEXT(card, 2, "dmcnomem"); return; } iptodo->type = QETH_IP_TYPE_DEL_ALL_MC; @@ -420,21 +422,26 @@ again: list_splice(&fail_list, &card->ip_list); } -static void qeth_l3_set_ip_addr_list(struct qeth_card *card) +void qeth_l3_set_ip_addr_list(struct qeth_card *card) { struct list_head *tbd_list; struct qeth_ipaddr *todo, *addr; unsigned long flags; int rc; - QETH_DBF_TEXT(TRACE, 2, "sdiplist"); - QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *)); + QETH_CARD_TEXT(card, 2, "sdiplist"); + QETH_CARD_HEX(card, 2, &card, sizeof(void *)); + + if ((card->state != CARD_STATE_UP && + card->state != CARD_STATE_SOFTSETUP) || card->options.sniffer) { + return; + } spin_lock_irqsave(&card->ip_lock, flags); tbd_list = card->ip_tbd_list; - card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC); + card->ip_tbd_list = kzalloc(sizeof(struct list_head), GFP_ATOMIC); if (!card->ip_tbd_list) { - QETH_DBF_TEXT(TRACE, 0, "silnomem"); + QETH_CARD_TEXT(card, 0, "silnomem"); card->ip_tbd_list = tbd_list; spin_unlock_irqrestore(&card->ip_lock, flags); return; @@ -468,7 +475,7 @@ static void qeth_l3_set_ip_addr_list(struct qeth_card *card) spin_unlock_irqrestore(&card->ip_lock, flags); rc = qeth_l3_deregister_addr_entry(card, addr); spin_lock_irqsave(&card->ip_lock, flags); - if (!rc || (rc == IPA_RC_PRIMARY_ALREADY_DEFINED)) + if (!rc || (rc == IPA_RC_IP_ADDRESS_NOT_DEFINED)) kfree(addr); else list_add_tail(&addr->entry, &card->ip_list); @@ -479,13 +486,14 @@ static void qeth_l3_set_ip_addr_list(struct qeth_card *card) kfree(tbd_list); } -static void qeth_l3_clear_ip_list(struct qeth_card *card, int clean, - int recover) +static void qeth_l3_clear_ip_list(struct qeth_card *card, int recover) { struct qeth_ipaddr *addr, *tmp; unsigned long flags; - QETH_DBF_TEXT(TRACE, 4, "clearip"); + QETH_CARD_TEXT(card, 4, "clearip"); + if (recover && card->options.sniffer) + return; spin_lock_irqsave(&card->ip_lock, flags); /* clear todo list */ list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) { @@ -497,11 +505,6 @@ static void qeth_l3_clear_ip_list(struct qeth_card *card, int clean, addr = list_entry(card->ip_list.next, struct qeth_ipaddr, entry); list_del_init(&addr->entry); - if (clean) { - spin_unlock_irqrestore(&card->ip_lock, flags); - qeth_l3_deregister_addr_entry(card, addr); - spin_lock_irqsave(&card->ip_lock, flags); - } if (!recover || addr->is_multicast) { kfree(addr); continue; @@ -543,7 +546,7 @@ static int qeth_l3_send_setdelmc(struct qeth_card *card, struct qeth_cmd_buffer *iob; struct qeth_ipa_cmd *cmd; - QETH_DBF_TEXT(TRACE, 4, "setdelmc"); + QETH_CARD_TEXT(card, 4, "setdelmc"); iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto); cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); @@ -581,8 +584,8 @@ static int qeth_l3_send_setdelip(struct qeth_card *card, struct qeth_ipa_cmd *cmd; __u8 netmask[16]; - QETH_DBF_TEXT(TRACE, 4, "setdelip"); - QETH_DBF_TEXT_(TRACE, 4, "flags%02X", flags); + QETH_CARD_TEXT(card, 4, "setdelip"); + QETH_CARD_TEXT_(card, 4, "flags%02X", flags); iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto); cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); @@ -611,7 +614,7 @@ static int qeth_l3_send_setrouting(struct qeth_card *card, struct qeth_ipa_cmd *cmd; struct qeth_cmd_buffer *iob; - QETH_DBF_TEXT(TRACE, 4, "setroutg"); + QETH_CARD_TEXT(card, 4, "setroutg"); iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot); cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); cmd->data.setrtg.type = (type); @@ -620,7 +623,7 @@ static int qeth_l3_send_setrouting(struct qeth_card *card, return rc; } -static void qeth_l3_correct_routing_type(struct qeth_card *card, +static int qeth_l3_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type, enum qeth_prot_versions prot) { if (card->info.type == QETH_CARD_TYPE_IQD) { @@ -629,7 +632,7 @@ static void qeth_l3_correct_routing_type(struct qeth_card *card, case PRIMARY_CONNECTOR: case SECONDARY_CONNECTOR: case MULTICAST_ROUTER: - return; + return 0; default: goto out_inval; } @@ -638,27 +641,30 @@ static void qeth_l3_correct_routing_type(struct qeth_card *card, case NO_ROUTER: case PRIMARY_ROUTER: case SECONDARY_ROUTER: - return; + return 0; case MULTICAST_ROUTER: if (qeth_is_ipafunc_supported(card, prot, IPA_OSA_MC_ROUTER)) - return; + return 0; default: goto out_inval; } } out_inval: *type = NO_ROUTER; + return -EINVAL; } int qeth_l3_setrouting_v4(struct qeth_card *card) { int rc; - QETH_DBF_TEXT(TRACE, 3, "setrtg4"); + QETH_CARD_TEXT(card, 3, "setrtg4"); - qeth_l3_correct_routing_type(card, &card->options.route4.type, + rc = qeth_l3_correct_routing_type(card, &card->options.route4.type, QETH_PROT_IPV4); + if (rc) + return rc; rc = qeth_l3_send_setrouting(card, card->options.route4.type, QETH_PROT_IPV4); @@ -675,13 +681,15 @@ int qeth_l3_setrouting_v6(struct qeth_card *card) { int rc = 0; - QETH_DBF_TEXT(TRACE, 3, "setrtg6"); + QETH_CARD_TEXT(card, 3, "setrtg6"); #ifdef CONFIG_QETH_IPV6 if (!qeth_is_supported(card, IPA_IPV6)) return 0; - qeth_l3_correct_routing_type(card, &card->options.route6.type, + rc = qeth_l3_correct_routing_type(card, &card->options.route6.type, QETH_PROT_IPV6); + if (rc) + return rc; rc = qeth_l3_send_setrouting(card, card->options.route6.type, QETH_PROT_IPV6); @@ -719,7 +727,7 @@ int qeth_l3_add_ipato_entry(struct qeth_card *card, unsigned long flags; int rc = 0; - QETH_DBF_TEXT(TRACE, 2, "addipato"); + QETH_CARD_TEXT(card, 2, "addipato"); spin_lock_irqsave(&card->ip_lock, flags); list_for_each_entry(ipatoe, &card->ipato.entries, entry) { if (ipatoe->proto != new->proto) @@ -744,7 +752,7 @@ void qeth_l3_del_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *ipatoe, *tmp; unsigned long flags; - QETH_DBF_TEXT(TRACE, 2, "delipato"); + QETH_CARD_TEXT(card, 2, "delipato"); spin_lock_irqsave(&card->ip_lock, flags); list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) { if (ipatoe->proto != proto) @@ -772,11 +780,11 @@ int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto, ipaddr = qeth_l3_get_addr_buffer(proto); if (ipaddr) { if (proto == QETH_PROT_IPV4) { - QETH_DBF_TEXT(TRACE, 2, "addvipa4"); + QETH_CARD_TEXT(card, 2, "addvipa4"); memcpy(&ipaddr->u.a4.addr, addr, 4); ipaddr->u.a4.mask = 0; } else if (proto == QETH_PROT_IPV6) { - QETH_DBF_TEXT(TRACE, 2, "addvipa6"); + QETH_CARD_TEXT(card, 2, "addvipa6"); memcpy(&ipaddr->u.a6.addr, addr, 16); ipaddr->u.a6.pfxlen = 0; } @@ -791,6 +799,7 @@ int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto, rc = -EEXIST; spin_unlock_irqrestore(&card->ip_lock, flags); if (rc) { + kfree(ipaddr); return rc; } if (!qeth_l3_add_ip(card, ipaddr)) @@ -807,11 +816,11 @@ void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto, ipaddr = qeth_l3_get_addr_buffer(proto); if (ipaddr) { if (proto == QETH_PROT_IPV4) { - QETH_DBF_TEXT(TRACE, 2, "delvipa4"); + QETH_CARD_TEXT(card, 2, "delvipa4"); memcpy(&ipaddr->u.a4.addr, addr, 4); ipaddr->u.a4.mask = 0; } else if (proto == QETH_PROT_IPV6) { - QETH_DBF_TEXT(TRACE, 2, "delvipa6"); + QETH_CARD_TEXT(card, 2, "delvipa6"); memcpy(&ipaddr->u.a6.addr, addr, 16); ipaddr->u.a6.pfxlen = 0; } @@ -836,11 +845,11 @@ int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto, ipaddr = qeth_l3_get_addr_buffer(proto); if (ipaddr) { if (proto == QETH_PROT_IPV4) { - QETH_DBF_TEXT(TRACE, 2, "addrxip4"); + QETH_CARD_TEXT(card, 2, "addrxip4"); memcpy(&ipaddr->u.a4.addr, addr, 4); ipaddr->u.a4.mask = 0; } else if (proto == QETH_PROT_IPV6) { - QETH_DBF_TEXT(TRACE, 2, "addrxip6"); + QETH_CARD_TEXT(card, 2, "addrxip6"); memcpy(&ipaddr->u.a6.addr, addr, 16); ipaddr->u.a6.pfxlen = 0; } @@ -855,6 +864,7 @@ int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto, rc = -EEXIST; spin_unlock_irqrestore(&card->ip_lock, flags); if (rc) { + kfree(ipaddr); return rc; } if (!qeth_l3_add_ip(card, ipaddr)) @@ -871,11 +881,11 @@ void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto, ipaddr = qeth_l3_get_addr_buffer(proto); if (ipaddr) { if (proto == QETH_PROT_IPV4) { - QETH_DBF_TEXT(TRACE, 2, "addrxip4"); + QETH_CARD_TEXT(card, 2, "addrxip4"); memcpy(&ipaddr->u.a4.addr, addr, 4); ipaddr->u.a4.mask = 0; } else if (proto == QETH_PROT_IPV6) { - QETH_DBF_TEXT(TRACE, 2, "addrxip6"); + QETH_CARD_TEXT(card, 2, "addrxip6"); memcpy(&ipaddr->u.a6.addr, addr, 16); ipaddr->u.a6.pfxlen = 0; } @@ -895,15 +905,15 @@ static int qeth_l3_register_addr_entry(struct qeth_card *card, int cnt = 3; if (addr->proto == QETH_PROT_IPV4) { - QETH_DBF_TEXT(TRACE, 2, "setaddr4"); - QETH_DBF_HEX(TRACE, 3, &addr->u.a4.addr, sizeof(int)); + QETH_CARD_TEXT(card, 2, "setaddr4"); + QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int)); } else if (addr->proto == QETH_PROT_IPV6) { - QETH_DBF_TEXT(TRACE, 2, "setaddr6"); - QETH_DBF_HEX(TRACE, 3, &addr->u.a6.addr, 8); - QETH_DBF_HEX(TRACE, 3, ((char *)&addr->u.a6.addr) + 8, 8); + QETH_CARD_TEXT(card, 2, "setaddr6"); + QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8); + QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8); } else { - QETH_DBF_TEXT(TRACE, 2, "setaddr?"); - QETH_DBF_HEX(TRACE, 3, addr, sizeof(struct qeth_ipaddr)); + QETH_CARD_TEXT(card, 2, "setaddr?"); + QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr)); } do { if (addr->is_multicast) @@ -912,13 +922,13 @@ static int qeth_l3_register_addr_entry(struct qeth_card *card, rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP, addr->set_flags); if (rc) - QETH_DBF_TEXT(TRACE, 2, "failed"); + QETH_CARD_TEXT(card, 2, "failed"); } while ((--cnt > 0) && rc); if (rc) { - QETH_DBF_TEXT(TRACE, 2, "FAILED"); + QETH_CARD_TEXT(card, 2, "FAILED"); qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf); - PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n", - buf, rc, rc); + dev_warn(&card->gdev->dev, + "Registering IP address %s failed\n", buf); } return rc; } @@ -929,15 +939,15 @@ static int qeth_l3_deregister_addr_entry(struct qeth_card *card, int rc = 0; if (addr->proto == QETH_PROT_IPV4) { - QETH_DBF_TEXT(TRACE, 2, "deladdr4"); - QETH_DBF_HEX(TRACE, 3, &addr->u.a4.addr, sizeof(int)); + QETH_CARD_TEXT(card, 2, "deladdr4"); + QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int)); } else if (addr->proto == QETH_PROT_IPV6) { - QETH_DBF_TEXT(TRACE, 2, "deladdr6"); - QETH_DBF_HEX(TRACE, 3, &addr->u.a6.addr, 8); - QETH_DBF_HEX(TRACE, 3, ((char *)&addr->u.a6.addr) + 8, 8); + QETH_CARD_TEXT(card, 2, "deladdr6"); + QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8); + QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8); } else { - QETH_DBF_TEXT(TRACE, 2, "deladdr?"); - QETH_DBF_HEX(TRACE, 3, addr, sizeof(struct qeth_ipaddr)); + QETH_CARD_TEXT(card, 2, "deladdr?"); + QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr)); } if (addr->is_multicast) rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM); @@ -945,7 +955,7 @@ static int qeth_l3_deregister_addr_entry(struct qeth_card *card, rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP, addr->del_flags); if (rc) - QETH_DBF_TEXT(TRACE, 2, "failed"); + QETH_CARD_TEXT(card, 2, "failed"); return rc; } @@ -971,57 +981,6 @@ static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type) return ct | QETH_CAST_UNICAST; } -static int qeth_l3_send_setadp_mode(struct qeth_card *card, __u32 command, - __u32 mode) -{ - int rc; - struct qeth_cmd_buffer *iob; - struct qeth_ipa_cmd *cmd; - - QETH_DBF_TEXT(TRACE, 4, "adpmode"); - - iob = qeth_get_adapter_cmd(card, command, - sizeof(struct qeth_ipacmd_setadpparms)); - cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); - cmd->data.setadapterparms.data.mode = mode; - rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb, - NULL); - return rc; -} - -static int qeth_l3_setadapter_hstr(struct qeth_card *card) -{ - int rc; - - QETH_DBF_TEXT(TRACE, 4, "adphstr"); - - if (qeth_adp_supported(card, IPA_SETADP_SET_BROADCAST_MODE)) { - rc = qeth_l3_send_setadp_mode(card, - IPA_SETADP_SET_BROADCAST_MODE, - card->options.broadcast_mode); - if (rc) - QETH_DBF_MESSAGE(2, "couldn't set broadcast mode on " - "device %s: x%x\n", - CARD_BUS_ID(card), rc); - rc = qeth_l3_send_setadp_mode(card, - IPA_SETADP_ALTER_MAC_ADDRESS, - card->options.macaddr_mode); - if (rc) - QETH_DBF_MESSAGE(2, "couldn't set macaddr mode on " - "device %s: x%x\n", CARD_BUS_ID(card), rc); - return rc; - } - if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL) - QETH_DBF_MESSAGE(2, "set adapter parameters not available " - "to set broadcast mode, using ALLRINGS " - "on device %s:\n", CARD_BUS_ID(card)); - if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL) - QETH_DBF_MESSAGE(2, "set adapter parameters not available " - "to set macaddr mode, using NONCANONICAL " - "on device %s:\n", CARD_BUS_ID(card)); - return 0; -} - static int qeth_l3_setadapter_parms(struct qeth_card *card) { int rc; @@ -1029,30 +988,24 @@ static int qeth_l3_setadapter_parms(struct qeth_card *card) QETH_DBF_TEXT(SETUP, 2, "setadprm"); if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) { - PRINT_WARN("set adapter parameters not supported " - "on device %s.\n", - CARD_BUS_ID(card)); + dev_info(&card->gdev->dev, + "set adapter parameters not supported.\n"); QETH_DBF_TEXT(SETUP, 2, " notsupp"); return 0; } rc = qeth_query_setadapterparms(card); if (rc) { - PRINT_WARN("couldn't set adapter parameters on device %s: " - "x%x\n", CARD_BUS_ID(card), rc); + QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: " + "0x%x\n", dev_name(&card->gdev->dev), rc); return rc; } if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) { rc = qeth_setadpparms_change_macaddr(card); if (rc) - PRINT_WARN("couldn't get MAC address on " - "device %s: x%x\n", - CARD_BUS_ID(card), rc); + dev_warn(&card->gdev->dev, "Reading the adapter MAC" + " address failed\n"); } - if ((card->info.link_type == QETH_LINK_TYPE_HSTR) || - (card->info.link_type == QETH_LINK_TYPE_LANE_TR)) - rc = qeth_l3_setadapter_hstr(card); - return rc; } @@ -1061,7 +1014,7 @@ static int qeth_l3_default_setassparms_cb(struct qeth_card *card, { struct qeth_ipa_cmd *cmd; - QETH_DBF_TEXT(TRACE, 4, "defadpcb"); + QETH_CARD_TEXT(card, 4, "defadpcb"); cmd = (struct qeth_ipa_cmd *) data; if (cmd->hdr.return_code == 0) { @@ -1074,8 +1027,15 @@ static int qeth_l3_default_setassparms_cb(struct qeth_card *card, if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM && cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) { card->info.csum_mask = cmd->data.setassparms.data.flags_32bit; - QETH_DBF_TEXT_(TRACE, 3, "csum:%d", card->info.csum_mask); + QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask); + } + if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM && + cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) { + card->info.tx_csum_mask = + cmd->data.setassparms.data.flags_32bit; + QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask); } + return 0; } @@ -1086,7 +1046,7 @@ static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd( struct qeth_cmd_buffer *iob; struct qeth_ipa_cmd *cmd; - QETH_DBF_TEXT(TRACE, 4, "getasscm"); + QETH_CARD_TEXT(card, 4, "getasscm"); iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot); cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); @@ -1108,7 +1068,7 @@ static int qeth_l3_send_setassparms(struct qeth_card *card, int rc; struct qeth_ipa_cmd *cmd; - QETH_DBF_TEXT(TRACE, 4, "sendassp"); + QETH_CARD_TEXT(card, 4, "sendassp"); cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); if (len <= sizeof(__u32)) @@ -1127,7 +1087,7 @@ static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card, int rc; struct qeth_cmd_buffer *iob; - QETH_DBF_TEXT(TRACE, 4, "simassp6"); + QETH_CARD_TEXT(card, 4, "simassp6"); iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code, 0, QETH_PROT_IPV6); rc = qeth_l3_send_setassparms(card, iob, 0, 0, @@ -1143,7 +1103,7 @@ static int qeth_l3_send_simple_setassparms(struct qeth_card *card, int length = 0; struct qeth_cmd_buffer *iob; - QETH_DBF_TEXT(TRACE, 4, "simassp4"); + QETH_CARD_TEXT(card, 4, "simassp4"); if (data) length = sizeof(__u32); iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code, @@ -1157,19 +1117,20 @@ static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card) { int rc; - QETH_DBF_TEXT(TRACE, 3, "ipaarp"); + QETH_CARD_TEXT(card, 3, "ipaarp"); if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) { - PRINT_WARN("ARP processing not supported " - "on %s!\n", QETH_CARD_IFNAME(card)); + dev_info(&card->gdev->dev, + "ARP processing not supported on %s!\n", + QETH_CARD_IFNAME(card)); return 0; } rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING, IPA_CMD_ASS_START, 0); if (rc) { - PRINT_WARN("Could not start ARP processing " - "assist on %s: 0x%x\n", - QETH_CARD_IFNAME(card), rc); + dev_warn(&card->gdev->dev, + "Starting ARP processing support for %s failed\n", + QETH_CARD_IFNAME(card)); } return rc; } @@ -1178,22 +1139,24 @@ static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card) { int rc; - QETH_DBF_TEXT(TRACE, 3, "ipaipfrg"); + QETH_CARD_TEXT(card, 3, "ipaipfrg"); if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) { - PRINT_INFO("Hardware IP fragmentation not supported on %s\n", - QETH_CARD_IFNAME(card)); + dev_info(&card->gdev->dev, + "Hardware IP fragmentation not supported on %s\n", + QETH_CARD_IFNAME(card)); return -EOPNOTSUPP; } rc = qeth_l3_send_simple_setassparms(card, IPA_IP_FRAGMENTATION, IPA_CMD_ASS_START, 0); if (rc) { - PRINT_WARN("Could not start Hardware IP fragmentation " - "assist on %s: 0x%x\n", - QETH_CARD_IFNAME(card), rc); + dev_warn(&card->gdev->dev, + "Starting IP fragmentation support for %s failed\n", + QETH_CARD_IFNAME(card)); } else - PRINT_INFO("Hardware IP fragmentation enabled \n"); + dev_info(&card->gdev->dev, + "Hardware IP fragmentation enabled \n"); return rc; } @@ -1201,23 +1164,21 @@ static int qeth_l3_start_ipa_source_mac(struct qeth_card *card) { int rc; - QETH_DBF_TEXT(TRACE, 3, "stsrcmac"); - - if (!card->options.fake_ll) - return -EOPNOTSUPP; + QETH_CARD_TEXT(card, 3, "stsrcmac"); if (!qeth_is_supported(card, IPA_SOURCE_MAC)) { - PRINT_INFO("Inbound source address not " - "supported on %s\n", QETH_CARD_IFNAME(card)); + dev_info(&card->gdev->dev, + "Inbound source MAC-address not supported on %s\n", + QETH_CARD_IFNAME(card)); return -EOPNOTSUPP; } rc = qeth_l3_send_simple_setassparms(card, IPA_SOURCE_MAC, IPA_CMD_ASS_START, 0); if (rc) - PRINT_WARN("Could not start inbound source " - "assist on %s: 0x%x\n", - QETH_CARD_IFNAME(card), rc); + dev_warn(&card->gdev->dev, + "Starting source MAC-address support for %s failed\n", + QETH_CARD_IFNAME(card)); return rc; } @@ -1225,22 +1186,22 @@ static int qeth_l3_start_ipa_vlan(struct qeth_card *card) { int rc = 0; - QETH_DBF_TEXT(TRACE, 3, "strtvlan"); + QETH_CARD_TEXT(card, 3, "strtvlan"); if (!qeth_is_supported(card, IPA_FULL_VLAN)) { - PRINT_WARN("VLAN not supported on %s\n", - QETH_CARD_IFNAME(card)); + dev_info(&card->gdev->dev, + "VLAN not supported on %s\n", QETH_CARD_IFNAME(card)); return -EOPNOTSUPP; } rc = qeth_l3_send_simple_setassparms(card, IPA_VLAN_PRIO, IPA_CMD_ASS_START, 0); if (rc) { - PRINT_WARN("Could not start vlan " - "assist on %s: 0x%x\n", - QETH_CARD_IFNAME(card), rc); + dev_warn(&card->gdev->dev, + "Starting VLAN support for %s failed\n", + QETH_CARD_IFNAME(card)); } else { - PRINT_INFO("VLAN enabled \n"); + dev_info(&card->gdev->dev, "VLAN enabled\n"); } return rc; } @@ -1249,102 +1210,71 @@ static int qeth_l3_start_ipa_multicast(struct qeth_card *card) { int rc; - QETH_DBF_TEXT(TRACE, 3, "stmcast"); + QETH_CARD_TEXT(card, 3, "stmcast"); if (!qeth_is_supported(card, IPA_MULTICASTING)) { - PRINT_WARN("Multicast not supported on %s\n", - QETH_CARD_IFNAME(card)); + dev_info(&card->gdev->dev, + "Multicast not supported on %s\n", + QETH_CARD_IFNAME(card)); return -EOPNOTSUPP; } rc = qeth_l3_send_simple_setassparms(card, IPA_MULTICASTING, IPA_CMD_ASS_START, 0); if (rc) { - PRINT_WARN("Could not start multicast " - "assist on %s: rc=%i\n", - QETH_CARD_IFNAME(card), rc); + dev_warn(&card->gdev->dev, + "Starting multicast support for %s failed\n", + QETH_CARD_IFNAME(card)); } else { - PRINT_INFO("Multicast enabled\n"); + dev_info(&card->gdev->dev, "Multicast enabled\n"); card->dev->flags |= IFF_MULTICAST; } return rc; } -static int qeth_l3_query_ipassists_cb(struct qeth_card *card, - struct qeth_reply *reply, unsigned long data) -{ - struct qeth_ipa_cmd *cmd; - - QETH_DBF_TEXT(SETUP, 2, "qipasscb"); - - cmd = (struct qeth_ipa_cmd *) data; - if (cmd->hdr.prot_version == QETH_PROT_IPV4) { - card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported; - card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; - } else { - card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported; - card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; - } - QETH_DBF_TEXT(SETUP, 2, "suppenbl"); - QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_supported); - QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_enabled); - return 0; -} - -static int qeth_l3_query_ipassists(struct qeth_card *card, - enum qeth_prot_versions prot) -{ - int rc; - struct qeth_cmd_buffer *iob; - - QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot); - iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot); - rc = qeth_send_ipa_cmd(card, iob, qeth_l3_query_ipassists_cb, NULL); - return rc; -} - #ifdef CONFIG_QETH_IPV6 static int qeth_l3_softsetup_ipv6(struct qeth_card *card) { int rc; - QETH_DBF_TEXT(TRACE, 3, "softipv6"); + QETH_CARD_TEXT(card, 3, "softipv6"); if (card->info.type == QETH_CARD_TYPE_IQD) goto out; - rc = qeth_l3_query_ipassists(card, QETH_PROT_IPV6); + rc = qeth_query_ipassists(card, QETH_PROT_IPV6); if (rc) { - PRINT_ERR("IPv6 query ipassist failed on %s\n", - QETH_CARD_IFNAME(card)); + dev_err(&card->gdev->dev, + "Activating IPv6 support for %s failed\n", + QETH_CARD_IFNAME(card)); return rc; } rc = qeth_l3_send_simple_setassparms(card, IPA_IPV6, IPA_CMD_ASS_START, 3); if (rc) { - PRINT_WARN("IPv6 start assist (version 4) failed " - "on %s: 0x%x\n", - QETH_CARD_IFNAME(card), rc); + dev_err(&card->gdev->dev, + "Activating IPv6 support for %s failed\n", + QETH_CARD_IFNAME(card)); return rc; } rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6, IPA_CMD_ASS_START); if (rc) { - PRINT_WARN("IPV6 start assist (version 6) failed " - "on %s: 0x%x\n", - QETH_CARD_IFNAME(card), rc); + dev_err(&card->gdev->dev, + "Activating IPv6 support for %s failed\n", + QETH_CARD_IFNAME(card)); return rc; } rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU, IPA_CMD_ASS_START); if (rc) { - PRINT_WARN("Could not enable passthrough " - "on %s: 0x%x\n", - QETH_CARD_IFNAME(card), rc); + dev_warn(&card->gdev->dev, + "Enabling the passthrough mode for %s failed\n", + QETH_CARD_IFNAME(card)); return rc; } out: - PRINT_INFO("IPV6 enabled \n"); + dev_info(&card->gdev->dev, "IPV6 enabled\n"); return 0; } #endif @@ -1353,11 +1283,11 @@ static int qeth_l3_start_ipa_ipv6(struct qeth_card *card) { int rc = 0; - QETH_DBF_TEXT(TRACE, 3, "strtipv6"); + QETH_CARD_TEXT(card, 3, "strtipv6"); if (!qeth_is_supported(card, IPA_IPV6)) { - PRINT_WARN("IPv6 not supported on %s\n", - QETH_CARD_IFNAME(card)); + dev_info(&card->gdev->dev, + "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card)); return 0; } #ifdef CONFIG_QETH_IPV6 @@ -1370,37 +1300,38 @@ static int qeth_l3_start_ipa_broadcast(struct qeth_card *card) { int rc; - QETH_DBF_TEXT(TRACE, 3, "stbrdcst"); + QETH_CARD_TEXT(card, 3, "stbrdcst"); card->info.broadcast_capable = 0; if (!qeth_is_supported(card, IPA_FILTERING)) { - PRINT_WARN("Broadcast not supported on %s\n", - QETH_CARD_IFNAME(card)); + dev_info(&card->gdev->dev, + "Broadcast not supported on %s\n", + QETH_CARD_IFNAME(card)); rc = -EOPNOTSUPP; goto out; } rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING, IPA_CMD_ASS_START, 0); if (rc) { - PRINT_WARN("Could not enable broadcasting filtering " - "on %s: 0x%x\n", - QETH_CARD_IFNAME(card), rc); + dev_warn(&card->gdev->dev, "Enabling broadcast filtering for " + "%s failed\n", QETH_CARD_IFNAME(card)); goto out; } rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING, IPA_CMD_ASS_CONFIGURE, 1); if (rc) { - PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n", - QETH_CARD_IFNAME(card), rc); + dev_warn(&card->gdev->dev, + "Setting up broadcast filtering for %s failed\n", + QETH_CARD_IFNAME(card)); goto out; } card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO; - PRINT_INFO("Broadcast enabled \n"); + dev_info(&card->gdev->dev, "Broadcast enabled\n"); rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING, IPA_CMD_ASS_ENABLE, 1); if (rc) { - PRINT_WARN("Could not set up broadcast echo filtering on " - "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc); + dev_warn(&card->gdev->dev, "Setting up broadcast echo " + "filtering for %s failed\n", QETH_CARD_IFNAME(card)); goto out; } card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO; @@ -1419,51 +1350,76 @@ static int qeth_l3_send_checksum_command(struct qeth_card *card) rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_START, 0); if (rc) { - PRINT_WARN("Starting Inbound HW Checksumming failed on %s: " - "0x%x,\ncontinuing using Inbound SW Checksumming\n", - QETH_CARD_IFNAME(card), rc); + dev_warn(&card->gdev->dev, "Starting HW checksumming for %s " + "failed, using SW checksumming\n", + QETH_CARD_IFNAME(card)); return rc; } rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_ENABLE, card->info.csum_mask); if (rc) { - PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: " - "0x%x,\ncontinuing using Inbound SW Checksumming\n", - QETH_CARD_IFNAME(card), rc); + dev_warn(&card->gdev->dev, "Enabling HW checksumming for %s " + "failed, using SW checksumming\n", + QETH_CARD_IFNAME(card)); return rc; } return 0; } -static int qeth_l3_start_ipa_checksum(struct qeth_card *card) +static int qeth_l3_set_rx_csum(struct qeth_card *card, int on) { int rc = 0; - QETH_DBF_TEXT(TRACE, 3, "strtcsum"); - - if (card->options.checksum_type == NO_CHECKSUMMING) { - PRINT_WARN("Using no checksumming on %s.\n", - QETH_CARD_IFNAME(card)); - return 0; - } - if (card->options.checksum_type == SW_CHECKSUMMING) { - PRINT_WARN("Using SW checksumming on %s.\n", - QETH_CARD_IFNAME(card)); - return 0; + if (on) { + rc = qeth_l3_send_checksum_command(card); + if (rc) + return -EIO; + dev_info(&card->gdev->dev, + "HW Checksumming (inbound) enabled\n"); + } else { + rc = qeth_l3_send_simple_setassparms(card, + IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_STOP, 0); + if (rc) + return -EIO; } - if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) { - PRINT_WARN("Inbound HW Checksumming not " - "supported on %s,\ncontinuing " - "using Inbound SW Checksumming\n", - QETH_CARD_IFNAME(card)); - card->options.checksum_type = SW_CHECKSUMMING; - return 0; + + return 0; +} + +static int qeth_l3_start_ipa_checksum(struct qeth_card *card) +{ + QETH_CARD_TEXT(card, 3, "strtcsum"); + + if (card->dev->features & NETIF_F_RXCSUM) { + rtnl_lock(); + /* force set_features call */ + card->dev->features &= ~NETIF_F_RXCSUM; + netdev_update_features(card->dev); + rtnl_unlock(); } - rc = qeth_l3_send_checksum_command(card); - if (!rc) - PRINT_INFO("HW Checksumming (inbound) enabled \n"); + return 0; +} +static int qeth_l3_start_ipa_tx_checksum(struct qeth_card *card) +{ + int rc = 0; + + if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) + return rc; + rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM, + IPA_CMD_ASS_START, 0); + if (rc) + goto err_out; + rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM, + IPA_CMD_ASS_ENABLE, card->info.tx_csum_mask); + if (rc) + goto err_out; + dev_info(&card->gdev->dev, "HW TX Checksumming enabled\n"); + return rc; +err_out: + dev_warn(&card->gdev->dev, "Enabling HW TX checksumming for %s " + "failed, using SW TX checksumming\n", QETH_CARD_IFNAME(card)); return rc; } @@ -1471,32 +1427,35 @@ static int qeth_l3_start_ipa_tso(struct qeth_card *card) { int rc; - QETH_DBF_TEXT(TRACE, 3, "sttso"); + QETH_CARD_TEXT(card, 3, "sttso"); if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) { - PRINT_WARN("Outbound TSO not supported on %s\n", - QETH_CARD_IFNAME(card)); + dev_info(&card->gdev->dev, + "Outbound TSO not supported on %s\n", + QETH_CARD_IFNAME(card)); rc = -EOPNOTSUPP; } else { rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO, IPA_CMD_ASS_START, 0); if (rc) - PRINT_WARN("Could not start outbound TSO " - "assist on %s: rc=%i\n", - QETH_CARD_IFNAME(card), rc); + dev_warn(&card->gdev->dev, "Starting outbound TCP " + "segmentation offload for %s failed\n", + QETH_CARD_IFNAME(card)); else - PRINT_INFO("Outbound TSO enabled\n"); - } - if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)) { - card->options.large_send = QETH_LARGE_SEND_NO; - card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG); + dev_info(&card->gdev->dev, + "Outbound TSO enabled\n"); } + if (rc) + card->dev->features &= ~NETIF_F_TSO; return rc; } static int qeth_l3_start_ipassists(struct qeth_card *card) { - QETH_DBF_TEXT(TRACE, 3, "strtipas"); + QETH_CARD_TEXT(card, 3, "strtipas"); + + if (qeth_set_access_ctrl_online(card, 0)) + return -EIO; qeth_l3_start_ipa_arp_processing(card); /* go on*/ qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/ qeth_l3_start_ipa_source_mac(card); /* go on*/ @@ -1505,33 +1464,11 @@ static int qeth_l3_start_ipassists(struct qeth_card *card) qeth_l3_start_ipa_ipv6(card); /* go on*/ qeth_l3_start_ipa_broadcast(card); /* go on*/ qeth_l3_start_ipa_checksum(card); /* go on*/ + qeth_l3_start_ipa_tx_checksum(card); qeth_l3_start_ipa_tso(card); /* go on*/ return 0; } -static int qeth_l3_put_unique_id(struct qeth_card *card) -{ - - int rc = 0; - struct qeth_cmd_buffer *iob; - struct qeth_ipa_cmd *cmd; - - QETH_DBF_TEXT(TRACE, 2, "puniqeid"); - - if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) == - UNIQUE_ID_NOT_BY_CARD) - return -1; - iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR, - QETH_PROT_IPV6); - cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); - *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) = - card->info.unique_id; - memcpy(&cmd->data.create_destroy_addr.unique_id[0], - card->dev->dev_addr, OSA_ADDR_LEN); - rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); - return rc; -} - static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card, struct qeth_reply *reply, unsigned long data) { @@ -1542,7 +1479,7 @@ static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card, memcpy(card->dev->dev_addr, cmd->data.create_destroy_addr.unique_id, ETH_ALEN); else - random_ether_addr(card->dev->dev_addr); + eth_random_addr(card->dev->dev_addr); return 0; } @@ -1578,12 +1515,8 @@ static int qeth_l3_get_unique_id_cb(struct qeth_card *card, else { card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED | UNIQUE_ID_NOT_BY_CARD; - PRINT_WARN("couldn't get a unique id from the card on device " - "%s (result=x%x), using default id. ipv6 " - "autoconfig on other lpars may lead to duplicate " - "ip addresses. please use manually " - "configured ones.\n", - CARD_BUS_ID(card), cmd->hdr.return_code); + dev_warn(&card->gdev->dev, "The network adapter failed to " + "generate a unique ID\n"); } return 0; } @@ -1612,13 +1545,84 @@ static int qeth_l3_get_unique_id(struct qeth_card *card) return rc; } +static int +qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply, + unsigned long data) +{ + struct qeth_ipa_cmd *cmd; + __u16 rc; + + QETH_DBF_TEXT(SETUP, 2, "diastrcb"); + + cmd = (struct qeth_ipa_cmd *)data; + rc = cmd->hdr.return_code; + if (rc) + QETH_CARD_TEXT_(card, 2, "dxter%x", rc); + switch (cmd->data.diagass.action) { + case QETH_DIAGS_CMD_TRACE_QUERY: + break; + case QETH_DIAGS_CMD_TRACE_DISABLE: + switch (rc) { + case 0: + case IPA_RC_INVALID_SUBCMD: + card->info.promisc_mode = SET_PROMISC_MODE_OFF; + dev_info(&card->gdev->dev, "The HiperSockets network " + "traffic analyzer is deactivated\n"); + break; + default: + break; + } + break; + case QETH_DIAGS_CMD_TRACE_ENABLE: + switch (rc) { + case 0: + card->info.promisc_mode = SET_PROMISC_MODE_ON; + dev_info(&card->gdev->dev, "The HiperSockets network " + "traffic analyzer is activated\n"); + break; + case IPA_RC_HARDWARE_AUTH_ERROR: + dev_warn(&card->gdev->dev, "The device is not " + "authorized to run as a HiperSockets network " + "traffic analyzer\n"); + break; + case IPA_RC_TRACE_ALREADY_ACTIVE: + dev_warn(&card->gdev->dev, "A HiperSockets " + "network traffic analyzer is already " + "active in the HiperSockets LAN\n"); + break; + default: + break; + } + break; + default: + QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n", + cmd->data.diagass.action, QETH_CARD_IFNAME(card)); + } + + return 0; +} + +static int +qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd) +{ + struct qeth_cmd_buffer *iob; + struct qeth_ipa_cmd *cmd; + + QETH_DBF_TEXT(SETUP, 2, "diagtrac"); + + iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); + cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); + cmd->data.diagass.subcmd_len = 16; + cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE; + cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET; + cmd->data.diagass.action = diags_cmd; + return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL); +} + static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev) { - if (dev->type == ARPHRD_IEEE802_TR) - ip_tr_mc_map(ipm, mac); - else - ip_eth_mc_map(ipm, mac); + ip_eth_mc_map(ipm, mac); } static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev) @@ -1627,8 +1631,9 @@ static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev) struct ip_mc_list *im4; char buf[MAX_ADDR_LEN]; - QETH_DBF_TEXT(TRACE, 4, "addmc"); - for (im4 = in4_dev->mc_list; im4; im4 = im4->next) { + QETH_CARD_TEXT(card, 4, "addmc"); + for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL; + im4 = rcu_dereference(im4->next_rcu)) { qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev); ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4); if (!ipm) @@ -1641,29 +1646,28 @@ static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev) } } +/* called with rcu_read_lock */ static void qeth_l3_add_vlan_mc(struct qeth_card *card) { struct in_device *in_dev; - struct vlan_group *vg; - int i; + u16 vid; - QETH_DBF_TEXT(TRACE, 4, "addmcvl"); - if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL)) + QETH_CARD_TEXT(card, 4, "addmcvl"); + if (!qeth_is_supported(card, IPA_FULL_VLAN)) return; - vg = card->vlangrp; - for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) { - struct net_device *netdev = vlan_group_get_device(vg, i); + for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) { + struct net_device *netdev; + + netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), + vid); if (netdev == NULL || !(netdev->flags & IFF_UP)) continue; - in_dev = in_dev_get(netdev); + in_dev = __in_dev_get_rcu(netdev); if (!in_dev) continue; - read_lock(&in_dev->mc_list_lock); qeth_l3_add_mc(card, in_dev); - read_unlock(&in_dev->mc_list_lock); - in_dev_put(in_dev); } } @@ -1671,15 +1675,15 @@ static void qeth_l3_add_multicast_ipv4(struct qeth_card *card) { struct in_device *in4_dev; - QETH_DBF_TEXT(TRACE, 4, "chkmcv4"); - in4_dev = in_dev_get(card->dev); + QETH_CARD_TEXT(card, 4, "chkmcv4"); + rcu_read_lock(); + in4_dev = __in_dev_get_rcu(card->dev); if (in4_dev == NULL) - return; - read_lock(&in4_dev->mc_list_lock); + goto unlock; qeth_l3_add_mc(card, in4_dev); qeth_l3_add_vlan_mc(card); - read_unlock(&in4_dev->mc_list_lock); - in_dev_put(in4_dev); +unlock: + rcu_read_unlock(); } #ifdef CONFIG_QETH_IPV6 @@ -1689,7 +1693,7 @@ static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev) struct ifmcaddr6 *im6; char buf[MAX_ADDR_LEN]; - QETH_DBF_TEXT(TRACE, 4, "addmc6"); + QETH_CARD_TEXT(card, 4, "addmc6"); for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) { ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0); ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6); @@ -1704,19 +1708,21 @@ static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev) } } +/* called with rcu_read_lock */ static void qeth_l3_add_vlan_mc6(struct qeth_card *card) { struct inet6_dev *in_dev; - struct vlan_group *vg; - int i; + u16 vid; - QETH_DBF_TEXT(TRACE, 4, "admc6vl"); - if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL)) + QETH_CARD_TEXT(card, 4, "admc6vl"); + if (!qeth_is_supported(card, IPA_FULL_VLAN)) return; - vg = card->vlangrp; - for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) { - struct net_device *netdev = vlan_group_get_device(vg, i); + for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) { + struct net_device *netdev; + + netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), + vid); if (netdev == NULL || !(netdev->flags & IFF_UP)) continue; @@ -1734,16 +1740,18 @@ static void qeth_l3_add_multicast_ipv6(struct qeth_card *card) { struct inet6_dev *in6_dev; - QETH_DBF_TEXT(TRACE, 4, "chkmcv6"); + QETH_CARD_TEXT(card, 4, "chkmcv6"); if (!qeth_is_supported(card, IPA_IPV6)) return ; in6_dev = in6_dev_get(card->dev); if (in6_dev == NULL) return; + rcu_read_lock(); read_lock_bh(&in6_dev->lock); qeth_l3_add_mc6(card, in6_dev); qeth_l3_add_vlan_mc6(card); read_unlock_bh(&in6_dev->lock); + rcu_read_unlock(); in6_dev_put(in6_dev); } #endif /* CONFIG_QETH_IPV6 */ @@ -1754,10 +1762,14 @@ static void qeth_l3_free_vlan_addresses4(struct qeth_card *card, struct in_device *in_dev; struct in_ifaddr *ifa; struct qeth_ipaddr *addr; + struct net_device *netdev; - QETH_DBF_TEXT(TRACE, 4, "frvaddr4"); + QETH_CARD_TEXT(card, 4, "frvaddr4"); - in_dev = in_dev_get(vlan_group_get_device(card->vlangrp, vid)); + netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid); + if (!netdev) + return; + in_dev = in_dev_get(netdev); if (!in_dev) return; for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) { @@ -1780,13 +1792,17 @@ static void qeth_l3_free_vlan_addresses6(struct qeth_card *card, struct inet6_dev *in6_dev; struct inet6_ifaddr *ifa; struct qeth_ipaddr *addr; + struct net_device *netdev; - QETH_DBF_TEXT(TRACE, 4, "frvaddr6"); + QETH_CARD_TEXT(card, 4, "frvaddr6"); - in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid)); + netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid); + if (!netdev) + return; + in6_dev = in6_dev_get(netdev); if (!in6_dev) return; - for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next) { + list_for_each_entry(ifa, &in6_dev->addr_list, if_list) { addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6); if (addr) { memcpy(&addr->u.a6.addr, &ifa->addr, @@ -1804,72 +1820,49 @@ static void qeth_l3_free_vlan_addresses6(struct qeth_card *card, static void qeth_l3_free_vlan_addresses(struct qeth_card *card, unsigned short vid) { - if (!card->vlangrp) - return; + rcu_read_lock(); qeth_l3_free_vlan_addresses4(card, vid); qeth_l3_free_vlan_addresses6(card, vid); + rcu_read_unlock(); } -static void qeth_l3_vlan_rx_register(struct net_device *dev, - struct vlan_group *grp) +static int qeth_l3_vlan_rx_add_vid(struct net_device *dev, + __be16 proto, u16 vid) { struct qeth_card *card = dev->ml_priv; - unsigned long flags; - - QETH_DBF_TEXT(TRACE, 4, "vlanreg"); - spin_lock_irqsave(&card->vlanlock, flags); - card->vlangrp = grp; - spin_unlock_irqrestore(&card->vlanlock, flags); -} - -static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) -{ - struct net_device *vlandev; - struct qeth_card *card = dev->ml_priv; - struct in_device *in_dev; - - if (card->info.type == QETH_CARD_TYPE_IQD) - return; - - vlandev = vlan_group_get_device(card->vlangrp, vid); - vlandev->neigh_setup = qeth_l3_neigh_setup; - in_dev = in_dev_get(vlandev); -#ifdef CONFIG_SYSCTL - neigh_sysctl_unregister(in_dev->arp_parms); -#endif - neigh_parms_release(&arp_tbl, in_dev->arp_parms); - - in_dev->arp_parms = neigh_parms_alloc(vlandev, &arp_tbl); -#ifdef CONFIG_SYSCTL - neigh_sysctl_register(vlandev, in_dev->arp_parms, NET_IPV4, - NET_IPV4_NEIGH, "ipv4", NULL, NULL); -#endif - in_dev_put(in_dev); - return; + set_bit(vid, card->active_vlans); + return 0; } -static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) +static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev, + __be16 proto, u16 vid) { struct qeth_card *card = dev->ml_priv; unsigned long flags; - QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid); + QETH_CARD_TEXT_(card, 4, "kid:%d", vid); + if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { + QETH_CARD_TEXT(card, 3, "kidREC"); + return 0; + } spin_lock_irqsave(&card->vlanlock, flags); /* unregister IP addresses of vlan device */ qeth_l3_free_vlan_addresses(card, vid); - vlan_group_set_device(card->vlangrp, vid, NULL); + clear_bit(vid, card->active_vlans); spin_unlock_irqrestore(&card->vlanlock, flags); qeth_l3_set_multicast_list(card->dev); + return 0; } -static inline __u16 qeth_l3_rebuild_skb(struct qeth_card *card, - struct sk_buff *skb, struct qeth_hdr *hdr) +static inline int qeth_l3_rebuild_skb(struct qeth_card *card, + struct sk_buff *skb, struct qeth_hdr *hdr, + unsigned short *vlan_id) { - unsigned short vlan_id = 0; __be16 prot; struct iphdr *ip_hdr; unsigned char tg_addr[MAX_ADDR_LEN]; + int is_vlan = 0; if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) { prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 : @@ -1886,8 +1879,6 @@ static inline __u16 qeth_l3_rebuild_skb(struct qeth_card *card, #endif case __constant_htons(ETH_P_IP): ip_hdr = (struct iphdr *)skb->data; - (card->dev->type == ARPHRD_IEEE802_TR) ? - ip_tr_mc_map(ip_hdr->daddr, tg_addr): ip_eth_mc_map(ip_hdr->daddr, tg_addr); break; default: @@ -1907,107 +1898,201 @@ static inline __u16 qeth_l3_rebuild_skb(struct qeth_card *card, case QETH_CAST_ANYCAST: case QETH_CAST_NOCAST: default: - skb->pkt_type = PACKET_HOST; + if (card->options.sniffer) + skb->pkt_type = PACKET_OTHERHOST; + else + skb->pkt_type = PACKET_HOST; memcpy(tg_addr, card->dev->dev_addr, card->dev->addr_len); } - card->dev->header_ops->create(skb, card->dev, prot, tg_addr, - "FAKELL", card->dev->addr_len); + if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR) + card->dev->header_ops->create(skb, card->dev, prot, + tg_addr, &hdr->hdr.l3.dest_addr[2], + card->dev->addr_len); + else + card->dev->header_ops->create(skb, card->dev, prot, + tg_addr, "FAKELL", card->dev->addr_len); } -#ifdef CONFIG_TR - if (card->dev->type == ARPHRD_IEEE802_TR) - skb->protocol = tr_type_trans(skb, card->dev); - else -#endif - skb->protocol = eth_type_trans(skb, card->dev); + skb->protocol = eth_type_trans(skb, card->dev); if (hdr->hdr.l3.ext_flags & (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) { - vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)? + *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ? hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]); + is_vlan = 1; } - skb->ip_summed = card->options.checksum_type; - if (card->options.checksum_type == HW_CHECKSUMMING) { + if (card->dev->features & NETIF_F_RXCSUM) { if ((hdr->hdr.l3.ext_flags & - (QETH_HDR_EXT_CSUM_HDR_REQ | - QETH_HDR_EXT_CSUM_TRANSP_REQ)) == - (QETH_HDR_EXT_CSUM_HDR_REQ | - QETH_HDR_EXT_CSUM_TRANSP_REQ)) + (QETH_HDR_EXT_CSUM_HDR_REQ | + QETH_HDR_EXT_CSUM_TRANSP_REQ)) == + (QETH_HDR_EXT_CSUM_HDR_REQ | + QETH_HDR_EXT_CSUM_TRANSP_REQ)) skb->ip_summed = CHECKSUM_UNNECESSARY; else - skb->ip_summed = SW_CHECKSUMMING; - } + skb->ip_summed = CHECKSUM_NONE; + } else + skb->ip_summed = CHECKSUM_NONE; - return vlan_id; + return is_vlan; } -static void qeth_l3_process_inbound_buffer(struct qeth_card *card, - struct qeth_qdio_buffer *buf, int index) +static int qeth_l3_process_inbound_buffer(struct qeth_card *card, + int budget, int *done) { - struct qdio_buffer_element *element; + int work_done = 0; struct sk_buff *skb; struct qeth_hdr *hdr; - int offset; __u16 vlan_tag = 0; + int is_vlan; unsigned int len; - - /* get first element of current buffer */ - element = (struct qdio_buffer_element *)&buf->buffer->element[0]; - offset = 0; - if (card->options.performance_stats) - card->perf_stats.bufs_rec++; - while ((skb = qeth_core_get_next_skb(card, buf->buffer, &element, - &offset, &hdr))) { - skb->dev = card->dev; - /* is device UP ? */ - if (!(card->dev->flags & IFF_UP)) { - dev_kfree_skb_any(skb); - continue; + __u16 magic; + + *done = 0; + WARN_ON_ONCE(!budget); + while (budget) { + skb = qeth_core_get_next_skb(card, + &card->qdio.in_q->bufs[card->rx.b_index], + &card->rx.b_element, &card->rx.e_offset, &hdr); + if (!skb) { + *done = 1; + break; } - + skb->dev = card->dev; switch (hdr->hdr.l3.id) { case QETH_HEADER_TYPE_LAYER3: - vlan_tag = qeth_l3_rebuild_skb(card, skb, hdr); + magic = *(__u16 *)skb->data; + if ((card->info.type == QETH_CARD_TYPE_IQD) && + (magic == ETH_P_AF_IUCV)) { + skb->protocol = ETH_P_AF_IUCV; + skb->pkt_type = PACKET_HOST; + skb->mac_header = NET_SKB_PAD; + skb->dev = card->dev; + len = skb->len; + card->dev->header_ops->create(skb, card->dev, 0, + card->dev->dev_addr, "FAKELL", + card->dev->addr_len); + netif_receive_skb(skb); + } else { + is_vlan = qeth_l3_rebuild_skb(card, skb, hdr, + &vlan_tag); + len = skb->len; + if (is_vlan && !card->options.sniffer) + __vlan_hwaccel_put_tag(skb, + htons(ETH_P_8021Q), vlan_tag); + napi_gro_receive(&card->napi, skb); + } + break; + case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */ + skb->pkt_type = PACKET_HOST; + skb->protocol = eth_type_trans(skb, skb->dev); len = skb->len; - if (vlan_tag) - if (card->vlangrp) - vlan_hwaccel_rx(skb, card->vlangrp, - vlan_tag); - else { - dev_kfree_skb_any(skb); - continue; - } - else - netif_rx(skb); + netif_receive_skb(skb); break; default: dev_kfree_skb_any(skb); - QETH_DBF_TEXT(TRACE, 3, "inbunkno"); + QETH_CARD_TEXT(card, 3, "inbunkno"); QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); continue; } - - card->dev->last_rx = jiffies; + work_done++; + budget--; card->stats.rx_packets++; card->stats.rx_bytes += len; } + return work_done; +} + +static int qeth_l3_poll(struct napi_struct *napi, int budget) +{ + struct qeth_card *card = container_of(napi, struct qeth_card, napi); + int work_done = 0; + struct qeth_qdio_buffer *buffer; + int done; + int new_budget = budget; + + if (card->options.performance_stats) { + card->perf_stats.inbound_cnt++; + card->perf_stats.inbound_start_time = qeth_get_micros(); + } + + while (1) { + if (!card->rx.b_count) { + card->rx.qdio_err = 0; + card->rx.b_count = qdio_get_next_buffers( + card->data.ccwdev, 0, &card->rx.b_index, + &card->rx.qdio_err); + if (card->rx.b_count <= 0) { + card->rx.b_count = 0; + break; + } + card->rx.b_element = + &card->qdio.in_q->bufs[card->rx.b_index] + .buffer->element[0]; + card->rx.e_offset = 0; + } + + while (card->rx.b_count) { + buffer = &card->qdio.in_q->bufs[card->rx.b_index]; + if (!(card->rx.qdio_err && + qeth_check_qdio_errors(card, buffer->buffer, + card->rx.qdio_err, "qinerr"))) + work_done += qeth_l3_process_inbound_buffer( + card, new_budget, &done); + else + done = 1; + + if (done) { + if (card->options.performance_stats) + card->perf_stats.bufs_rec++; + qeth_put_buffer_pool_entry(card, + buffer->pool_entry); + qeth_queue_input_buffer(card, card->rx.b_index); + card->rx.b_count--; + if (card->rx.b_count) { + card->rx.b_index = + (card->rx.b_index + 1) % + QDIO_MAX_BUFFERS_PER_Q; + card->rx.b_element = + &card->qdio.in_q + ->bufs[card->rx.b_index] + .buffer->element[0]; + card->rx.e_offset = 0; + } + } + + if (work_done >= budget) + goto out; + else + new_budget = budget - work_done; + } + } + + napi_complete(napi); + if (qdio_start_irq(card->data.ccwdev, 0)) + napi_schedule(&card->napi); +out: + if (card->options.performance_stats) + card->perf_stats.inbound_time += qeth_get_micros() - + card->perf_stats.inbound_start_time; + return work_done; } static int qeth_l3_verify_vlan_dev(struct net_device *dev, struct qeth_card *card) { int rc = 0; - struct vlan_group *vg; - int i; + u16 vid; - vg = card->vlangrp; - if (!vg) - return rc; + for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) { + struct net_device *netdev; - for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) { - if (vlan_group_get_device(vg, i) == dev) { + rcu_read_lock(); + netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), + vid); + rcu_read_unlock(); + if (netdev == dev) { rc = QETH_VLAN_CARD; break; } @@ -2052,7 +2137,8 @@ static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev) card = vlan_dev_real_dev(dev)->ml_priv; if (card && card->options.layer2) card = NULL; - QETH_DBF_TEXT_(TRACE, 4, "%d", rc); + if (card) + QETH_CARD_TEXT_(card, 4, "%d", rc); return card ; } @@ -2064,8 +2150,9 @@ static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode) QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); qeth_set_allowed_threads(card, 0, 1); - if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)) - return -ERESTARTSYS; + if (card->options.sniffer && + (card->info.promisc_mode == SET_PROMISC_MODE_ON)) + qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE); if (card->read.state == CH_STATE_UP && card->write.state == CH_STATE_UP && (card->state == CARD_STATE_UP)) { @@ -2076,25 +2163,14 @@ static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode) dev_close(card->dev); rtnl_unlock(); } - if (!card->use_hard_stop) { - rc = qeth_send_stoplan(card); - if (rc) - QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); - } card->state = CARD_STATE_SOFTSETUP; } if (card->state == CARD_STATE_SOFTSETUP) { - qeth_l3_clear_ip_list(card, !card->use_hard_stop, 1); + qeth_l3_clear_ip_list(card, 1); qeth_clear_ipacmd_list(card); card->state = CARD_STATE_HARDSETUP; } if (card->state == CARD_STATE_HARDSETUP) { - if (!card->use_hard_stop && - (card->info.type != QETH_CARD_TYPE_IQD)) { - rc = qeth_l3_put_unique_id(card); - if (rc) - QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); - } qeth_qdio_clear_card(card, 0); qeth_clear_qdio_buffers(card); qeth_clear_working_pool_list(card); @@ -2104,24 +2180,58 @@ static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode) qeth_clear_cmd_buffers(&card->read); qeth_clear_cmd_buffers(&card->write); } - card->use_hard_stop = 0; return rc; } +/* + * test for and Switch promiscuous mode (on or off) + * either for guestlan or HiperSocket Sniffer + */ +static void +qeth_l3_handle_promisc_mode(struct qeth_card *card) +{ + struct net_device *dev = card->dev; + + if (((dev->flags & IFF_PROMISC) && + (card->info.promisc_mode == SET_PROMISC_MODE_ON)) || + (!(dev->flags & IFF_PROMISC) && + (card->info.promisc_mode == SET_PROMISC_MODE_OFF))) + return; + + if (card->info.guestlan) { /* Guestlan trace */ + if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) + qeth_setadp_promisc_mode(card); + } else if (card->options.sniffer && /* HiperSockets trace */ + qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) { + if (dev->flags & IFF_PROMISC) { + QETH_CARD_TEXT(card, 3, "+promisc"); + qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE); + } else { + QETH_CARD_TEXT(card, 3, "-promisc"); + qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE); + } + } +} + static void qeth_l3_set_multicast_list(struct net_device *dev) { struct qeth_card *card = dev->ml_priv; - QETH_DBF_TEXT(TRACE, 3, "setmulti"); - qeth_l3_delete_mc_addresses(card); - qeth_l3_add_multicast_ipv4(card); + QETH_CARD_TEXT(card, 3, "setmulti"); + if (qeth_threads_running(card, QETH_RECOVER_THREAD) && + (card->state != CARD_STATE_UP)) + return; + if (!card->options.sniffer) { + qeth_l3_delete_mc_addresses(card); + qeth_l3_add_multicast_ipv4(card); #ifdef CONFIG_QETH_IPV6 - qeth_l3_add_multicast_ipv6(card); + qeth_l3_add_multicast_ipv6(card); #endif - qeth_l3_set_ip_addr_list(card); - if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) - return; - qeth_setadp_promisc_mode(card); + qeth_l3_set_ip_addr_list(card); + if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) + return; + } + qeth_l3_handle_promisc_mode(card); } static const char *qeth_l3_arp_get_error_cause(int *rc) @@ -2152,7 +2262,7 @@ static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries) int tmp; int rc; - QETH_DBF_TEXT(TRACE, 3, "arpstnoe"); + QETH_CARD_TEXT(card, 3, "arpstnoe"); /* * currently GuestLAN only supports the ARP assist function @@ -2176,22 +2286,46 @@ static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries) return rc; } -static void qeth_l3_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo, - struct qeth_arp_query_data *qdata, int entry_size, - int uentry_size) +static __u32 get_arp_entry_size(struct qeth_card *card, + struct qeth_arp_query_data *qdata, + struct qeth_arp_entrytype *type, __u8 strip_entries) { - char *entry_ptr; - char *uentry_ptr; - int i; + __u32 rc; + __u8 is_hsi; - entry_ptr = (char *)&qdata->data; - uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset); - for (i = 0; i < qdata->no_entries; ++i) { - /* strip off 32 bytes "media specific information" */ - memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32); - entry_ptr += entry_size; - uentry_ptr += uentry_size; + is_hsi = qdata->reply_bits == 5; + if (type->ip == QETHARP_IP_ADDR_V4) { + QETH_CARD_TEXT(card, 4, "arpev4"); + if (strip_entries) { + rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) : + sizeof(struct qeth_arp_qi_entry7_short); + } else { + rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) : + sizeof(struct qeth_arp_qi_entry7); + } + } else if (type->ip == QETHARP_IP_ADDR_V6) { + QETH_CARD_TEXT(card, 4, "arpev6"); + if (strip_entries) { + rc = is_hsi ? + sizeof(struct qeth_arp_qi_entry5_short_ipv6) : + sizeof(struct qeth_arp_qi_entry7_short_ipv6); + } else { + rc = is_hsi ? + sizeof(struct qeth_arp_qi_entry5_ipv6) : + sizeof(struct qeth_arp_qi_entry7_ipv6); + } + } else { + QETH_CARD_TEXT(card, 4, "arpinv"); + rc = 0; } + + return rc; +} + +static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot) +{ + return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) || + (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6); } static int qeth_l3_arp_query_cb(struct qeth_card *card, @@ -2200,72 +2334,77 @@ static int qeth_l3_arp_query_cb(struct qeth_card *card, struct qeth_ipa_cmd *cmd; struct qeth_arp_query_data *qdata; struct qeth_arp_query_info *qinfo; - int entry_size; - int uentry_size; int i; + int e; + int entrybytes_done; + int stripped_bytes; + __u8 do_strip_entries; - QETH_DBF_TEXT(TRACE, 4, "arpquecb"); + QETH_CARD_TEXT(card, 3, "arpquecb"); qinfo = (struct qeth_arp_query_info *) reply->param; cmd = (struct qeth_ipa_cmd *) data; + QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version); if (cmd->hdr.return_code) { - QETH_DBF_TEXT_(TRACE, 4, "qaer1%i", cmd->hdr.return_code); + QETH_CARD_TEXT(card, 4, "arpcberr"); + QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code); return 0; } if (cmd->data.setassparms.hdr.return_code) { cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; - QETH_DBF_TEXT_(TRACE, 4, "qaer2%i", cmd->hdr.return_code); + QETH_CARD_TEXT(card, 4, "setaperr"); + QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code); return 0; } qdata = &cmd->data.setassparms.data.query_arp; - switch (qdata->reply_bits) { - case 5: - uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5); - if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) - uentry_size = sizeof(struct qeth_arp_qi_entry5_short); - break; - case 7: - /* fall through to default */ - default: - /* tr is the same as eth -> entry7 */ - uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7); - if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) - uentry_size = sizeof(struct qeth_arp_qi_entry7_short); - break; - } - /* check if there is enough room in userspace */ - if ((qinfo->udata_len - qinfo->udata_offset) < - qdata->no_entries * uentry_size){ - QETH_DBF_TEXT_(TRACE, 4, "qaer3%i", -ENOMEM); - cmd->hdr.return_code = -ENOMEM; - goto out_error; - } - QETH_DBF_TEXT_(TRACE, 4, "anore%i", - cmd->data.setassparms.hdr.number_of_replies); - QETH_DBF_TEXT_(TRACE, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no); - QETH_DBF_TEXT_(TRACE, 4, "anoen%i", qdata->no_entries); - - if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) { - /* strip off "media specific information" */ - qeth_l3_copy_arp_entries_stripped(qinfo, qdata, entry_size, - uentry_size); - } else - /*copy entries to user buffer*/ - memcpy(qinfo->udata + qinfo->udata_offset, - (char *)&qdata->data, qdata->no_entries*uentry_size); + QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries); + + do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0; + stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0; + entrybytes_done = 0; + for (e = 0; e < qdata->no_entries; ++e) { + char *cur_entry; + __u32 esize; + struct qeth_arp_entrytype *etype; + + cur_entry = &qdata->data + entrybytes_done; + etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type; + if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) { + QETH_CARD_TEXT(card, 4, "pmis"); + QETH_CARD_TEXT_(card, 4, "%i", etype->ip); + break; + } + esize = get_arp_entry_size(card, qdata, etype, + do_strip_entries); + QETH_CARD_TEXT_(card, 5, "esz%i", esize); + if (!esize) + break; + + if ((qinfo->udata_len - qinfo->udata_offset) < esize) { + QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM); + cmd->hdr.return_code = IPA_RC_ENOMEM; + goto out_error; + } - qinfo->no_entries += qdata->no_entries; - qinfo->udata_offset += (qdata->no_entries*uentry_size); + memcpy(qinfo->udata + qinfo->udata_offset, + &qdata->data + entrybytes_done + stripped_bytes, + esize); + entrybytes_done += esize + stripped_bytes; + qinfo->udata_offset += esize; + ++qinfo->no_entries; + } /* check if all replies received ... */ if (cmd->data.setassparms.hdr.seq_no < cmd->data.setassparms.hdr.number_of_replies) return 1; + QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries); memcpy(qinfo->udata, &qinfo->no_entries, 4); /* keep STRIP_ENTRIES flag so the user program can distinguish * stripped entries from normal ones */ if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES; memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2); + QETH_CARD_TEXT_(card, 4, "rc%i", 0); return 0; out_error: i = 0; @@ -2279,7 +2418,7 @@ static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card, unsigned long), void *reply_param) { - QETH_DBF_TEXT(TRACE, 4, "sendarp"); + QETH_CARD_TEXT(card, 4, "sendarp"); memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), @@ -2288,45 +2427,86 @@ static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card, reply_cb, reply_param); } -static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata) +static int qeth_l3_query_arp_cache_info(struct qeth_card *card, + enum qeth_prot_versions prot, + struct qeth_arp_query_info *qinfo) { struct qeth_cmd_buffer *iob; - struct qeth_arp_query_info qinfo = {0, }; + struct qeth_ipa_cmd *cmd; int tmp; int rc; - QETH_DBF_TEXT(TRACE, 3, "arpquery"); + QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot); + + iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING, + IPA_CMD_ASS_ARP_QUERY_INFO, + sizeof(struct qeth_arp_query_data) - sizeof(char), + prot); + cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); + cmd->data.setassparms.data.query_arp.request_bits = 0x000F; + cmd->data.setassparms.data.query_arp.reply_bits = 0; + cmd->data.setassparms.data.query_arp.no_entries = 0; + rc = qeth_l3_send_ipa_arp_cmd(card, iob, + QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN, + qeth_l3_arp_query_cb, (void *)qinfo); + if (rc) { + tmp = rc; + QETH_DBF_MESSAGE(2, + "Error while querying ARP cache on %s: %s " + "(0x%x/%d)\n", QETH_CARD_IFNAME(card), + qeth_l3_arp_get_error_cause(&rc), tmp, tmp); + } + + return rc; +} + +static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata) +{ + struct qeth_arp_query_info qinfo = {0, }; + int rc; + + QETH_CARD_TEXT(card, 3, "arpquery"); if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/ IPA_ARP_PROCESSING)) { - return -EOPNOTSUPP; + QETH_CARD_TEXT(card, 3, "arpqnsup"); + rc = -EOPNOTSUPP; + goto out; } /* get size of userspace buffer and mask_bits -> 6 bytes */ - if (copy_from_user(&qinfo, udata, 6)) - return -EFAULT; + if (copy_from_user(&qinfo, udata, 6)) { + rc = -EFAULT; + goto out; + } qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL); - if (!qinfo.udata) - return -ENOMEM; + if (!qinfo.udata) { + rc = -ENOMEM; + goto out; + } qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET; - iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING, - IPA_CMD_ASS_ARP_QUERY_INFO, - sizeof(int), QETH_PROT_IPV4); - - rc = qeth_l3_send_ipa_arp_cmd(card, iob, - QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN, - qeth_l3_arp_query_cb, (void *)&qinfo); + rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo); if (rc) { - tmp = rc; - QETH_DBF_MESSAGE(2, "Error while querying ARP cache on %s: %s " - "(0x%x/%d)\n", QETH_CARD_IFNAME(card), - qeth_l3_arp_get_error_cause(&rc), tmp, tmp); if (copy_to_user(udata, qinfo.udata, 4)) rc = -EFAULT; + goto free_and_out; } else { - if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) +#ifdef CONFIG_QETH_IPV6 + if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) { + /* fails in case of GuestLAN QDIO mode */ + qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6, + &qinfo); + } +#endif + if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) { + QETH_CARD_TEXT(card, 4, "qactf"); rc = -EFAULT; + goto free_and_out; + } + QETH_CARD_TEXT_(card, 4, "qacts"); } +free_and_out: kfree(qinfo.udata); +out: return rc; } @@ -2338,7 +2518,7 @@ static int qeth_l3_arp_add_entry(struct qeth_card *card, int tmp; int rc; - QETH_DBF_TEXT(TRACE, 3, "arpadent"); + QETH_CARD_TEXT(card, 3, "arpadent"); /* * currently GuestLAN only supports the ARP assist function @@ -2377,7 +2557,7 @@ static int qeth_l3_arp_remove_entry(struct qeth_card *card, int tmp; int rc; - QETH_DBF_TEXT(TRACE, 3, "arprment"); + QETH_CARD_TEXT(card, 3, "arprment"); /* * currently GuestLAN only supports the ARP assist function @@ -2413,7 +2593,7 @@ static int qeth_l3_arp_flush_cache(struct qeth_card *card) int rc; int tmp; - QETH_DBF_TEXT(TRACE, 3, "arpflush"); + QETH_CARD_TEXT(card, 3, "arpflush"); /* * currently GuestLAN only supports the ARP assist function @@ -2498,7 +2678,8 @@ static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); break; case SIOC_QETH_GET_CARD_TYPE: - if ((card->info.type == QETH_CARD_TYPE_OSAE) && + if ((card->info.type == QETH_CARD_TYPE_OSD || + card->info.type == QETH_CARD_TYPE_OSX) && !card->info.guestlan) return 1; return 0; @@ -2516,17 +2697,101 @@ static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) mii_data->phy_id, mii_data->reg_num); break; + case SIOC_QETH_QUERY_OAT: + rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data); + break; default: rc = -EOPNOTSUPP; } if (rc) - QETH_DBF_TEXT_(TRACE, 2, "ioce%d", rc); + QETH_CARD_TEXT_(card, 2, "ioce%d", rc); return rc; } +int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb) +{ + int cast_type = RTN_UNSPEC; + struct neighbour *n = NULL; + struct dst_entry *dst; + + rcu_read_lock(); + dst = skb_dst(skb); + if (dst) + n = dst_neigh_lookup_skb(dst, skb); + if (n) { + cast_type = n->type; + rcu_read_unlock(); + neigh_release(n); + if ((cast_type == RTN_BROADCAST) || + (cast_type == RTN_MULTICAST) || + (cast_type == RTN_ANYCAST)) + return cast_type; + else + return RTN_UNSPEC; + } + rcu_read_unlock(); + + /* try something else */ + if (skb->protocol == ETH_P_IPV6) + return (skb_network_header(skb)[24] == 0xff) ? + RTN_MULTICAST : 0; + else if (skb->protocol == ETH_P_IP) + return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ? + RTN_MULTICAST : 0; + /* ... */ + if (!memcmp(skb->data, skb->dev->broadcast, 6)) + return RTN_BROADCAST; + else { + u16 hdr_mac; + + hdr_mac = *((u16 *)skb->data); + /* tr multicast? */ + switch (card->info.link_type) { + case QETH_LINK_TYPE_HSTR: + case QETH_LINK_TYPE_LANE_TR: + if ((hdr_mac == QETH_TR_MAC_NC) || + (hdr_mac == QETH_TR_MAC_C)) + return RTN_MULTICAST; + break; + /* eth or so multicast? */ + default: + if ((hdr_mac == QETH_ETH_MAC_V4) || + (hdr_mac == QETH_ETH_MAC_V6)) + return RTN_MULTICAST; + } + } + return cast_type; +} + +static void qeth_l3_fill_af_iucv_hdr(struct qeth_card *card, + struct qeth_hdr *hdr, struct sk_buff *skb) +{ + char daddr[16]; + struct af_iucv_trans_hdr *iucv_hdr; + + skb_pull(skb, 14); + card->dev->header_ops->create(skb, card->dev, 0, + card->dev->dev_addr, card->dev->dev_addr, + card->dev->addr_len); + skb_pull(skb, 14); + iucv_hdr = (struct af_iucv_trans_hdr *)skb->data; + memset(hdr, 0, sizeof(struct qeth_hdr)); + hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3; + hdr->hdr.l3.ext_flags = 0; + hdr->hdr.l3.length = skb->len; + hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST; + memset(daddr, 0, sizeof(daddr)); + daddr[0] = 0xfe; + daddr[1] = 0x80; + memcpy(&daddr[8], iucv_hdr->destUserID, 8); + memcpy(hdr->hdr.l3.dest_addr, daddr, 16); +} + static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, struct sk_buff *skb, int ipv, int cast_type) { + struct dst_entry *dst; + memset(hdr, 0, sizeof(struct qeth_hdr)); hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3; hdr->hdr.l3.ext_flags = 0; @@ -2535,7 +2800,7 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, * before we're going to overwrite this location with next hop ip. * v6 uses passthrough, v4 sets the tag in the QDIO header. */ - if (card->vlangrp && vlan_tx_tag_present(skb)) { + if (vlan_tx_tag_present(skb)) { if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD)) hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME; else @@ -2544,39 +2809,34 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, } hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr); + + rcu_read_lock(); + dst = skb_dst(skb); if (ipv == 4) { + struct rtable *rt = (struct rtable *) dst; + __be32 *pkey = &ip_hdr(skb)->daddr; + + if (rt->rt_gateway) + pkey = &rt->rt_gateway; + /* IPv4 */ hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type); memset(hdr->hdr.l3.dest_addr, 0, 12); - if ((skb->dst) && (skb->dst->neighbour)) { - *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = - *((u32 *) skb->dst->neighbour->primary_key); - } else { - /* fill in destination address used in ip header */ - *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = - ip_hdr(skb)->daddr; - } + *((__be32 *) (&hdr->hdr.l3.dest_addr[12])) = *pkey; } else if (ipv == 6) { + struct rt6_info *rt = (struct rt6_info *) dst; + struct in6_addr *pkey = &ipv6_hdr(skb)->daddr; + + if (!ipv6_addr_any(&rt->rt6i_gateway)) + pkey = &rt->rt6i_gateway; + /* IPv6 */ hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type); if (card->info.type == QETH_CARD_TYPE_IQD) hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU; - if ((skb->dst) && (skb->dst->neighbour)) { - memcpy(hdr->hdr.l3.dest_addr, - skb->dst->neighbour->primary_key, 16); - } else { - /* fill in destination address used in ip header */ - memcpy(hdr->hdr.l3.dest_addr, - &ipv6_hdr(skb)->daddr, 16); - } + memcpy(hdr->hdr.l3.dest_addr, pkey, 16); } else { - /* passthrough */ - if ((skb->dev->type == ARPHRD_IEEE802_TR) && - !memcmp(skb->data + sizeof(struct qeth_hdr) + - sizeof(__u16), skb->dev->broadcast, 6)) { - hdr->hdr.l3.flags = QETH_CAST_BROADCAST | - QETH_HDR_PASSTHRU; - } else if (!memcmp(skb->data + sizeof(struct qeth_hdr), + if (!memcmp(skb->data + sizeof(struct qeth_hdr), skb->dev->broadcast, 6)) { /* broadcast? */ hdr->hdr.l3.flags = QETH_CAST_BROADCAST | @@ -2587,6 +2847,72 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, QETH_CAST_UNICAST | QETH_HDR_PASSTHRU; } } + rcu_read_unlock(); +} + +static inline void qeth_l3_hdr_csum(struct qeth_card *card, + struct qeth_hdr *hdr, struct sk_buff *skb) +{ + struct iphdr *iph = ip_hdr(skb); + + /* tcph->check contains already the pseudo hdr checksum + * so just set the header flags + */ + if (iph->protocol == IPPROTO_UDP) + hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP; + hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ | + QETH_HDR_EXT_CSUM_HDR_REQ; + iph->check = 0; + if (card->options.performance_stats) + card->perf_stats.tx_csum++; +} + +static void qeth_tso_fill_header(struct qeth_card *card, + struct qeth_hdr *qhdr, struct sk_buff *skb) +{ + struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr; + struct tcphdr *tcph = tcp_hdr(skb); + struct iphdr *iph = ip_hdr(skb); + struct ipv6hdr *ip6h = ipv6_hdr(skb); + + /*fix header to TSO values ...*/ + hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO; + hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso); + /*set values which are fix for the first approach ...*/ + hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso); + hdr->ext.imb_hdr_no = 1; + hdr->ext.hdr_type = 1; + hdr->ext.hdr_version = 1; + hdr->ext.hdr_len = 28; + /*insert non-fix values */ + hdr->ext.mss = skb_shinfo(skb)->gso_size; + hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4); + hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len - + sizeof(struct qeth_hdr_tso)); + tcph->check = 0; + if (skb->protocol == ETH_P_IPV6) { + ip6h->payload_len = 0; + tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr, + 0, IPPROTO_TCP, 0); + } else { + /*OSA want us to set these values ...*/ + tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, + 0, IPPROTO_TCP, 0); + iph->tot_len = 0; + iph->check = 0; + } +} + +static inline int qeth_l3_tso_elements(struct sk_buff *skb) +{ + unsigned long tcpd = (unsigned long)tcp_hdr(skb) + + tcp_hdr(skb)->doff * 4; + int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data); + int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd); + + elements += qeth_get_elements_for_frags(skb); + + return elements; } static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) @@ -2595,20 +2921,26 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) u16 *tag; struct qeth_hdr *hdr = NULL; int elements_needed = 0; + int elems; struct qeth_card *card = dev->ml_priv; struct sk_buff *new_skb = NULL; int ipv = qeth_get_ip_version(skb); - int cast_type = qeth_get_cast_type(card, skb); - struct qeth_qdio_out_q *queue = card->qdio.out_qs - [qeth_get_priority_queue(card, skb, ipv, cast_type)]; + int cast_type = qeth_l3_get_cast_type(card, skb); + struct qeth_qdio_out_q *queue = + card->qdio.out_qs[card->qdio.do_prio_queueing + || (cast_type && card->info.is_multicast_different) ? + qeth_get_priority_queue(card, skb, ipv, cast_type) : + card->qdio.default_out_queue]; int tx_bytes = skb->len; - enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO; - struct qeth_eddp_context *ctx = NULL; + bool large_send; int data_offset = -1; + int nr_frags; - if ((card->info.type == QETH_CARD_TYPE_IQD) && - (skb->protocol != htons(ETH_P_IPV6)) && - (skb->protocol != htons(ETH_P_IP))) + if (((card->info.type == QETH_CARD_TYPE_IQD) && + (((card->options.cq != QETH_CQ_ENABLED) && !ipv) || + ((card->options.cq == QETH_CQ_ENABLED) && + (skb->protocol != ETH_P_AF_IUCV)))) || + card->options.sniffer) goto tx_drop; if ((card->state != CARD_STATE_UP) || !card->lan_online) { @@ -2625,13 +2957,15 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) card->perf_stats.outbound_start_time = qeth_get_micros(); } - if (skb_is_gso(skb)) - large_send = card->options.large_send; + large_send = skb_is_gso(skb); if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) && (skb_shinfo(skb)->nr_frags == 0)) { new_skb = skb; - data_offset = ETH_HLEN; + if (new_skb->protocol == ETH_P_AF_IUCV) + data_offset = 0; + else + data_offset = ETH_HLEN; hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC); if (!hdr) goto tx_drop; @@ -2648,15 +2982,11 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) if (data_offset < 0) skb_pull(new_skb, ETH_HLEN); } else { - if (new_skb->protocol == htons(ETH_P_IP)) { - if (card->dev->type == ARPHRD_IEEE802_TR) - skb_pull(new_skb, TR_HLEN); - else - skb_pull(new_skb, ETH_HLEN); + if (ipv == 4) { + skb_pull(new_skb, ETH_HLEN); } - if (new_skb->protocol == ETH_P_IPV6 && card->vlangrp && - vlan_tx_tag_present(new_skb)) { + if (ipv != 4 && vlan_tx_tag_present(new_skb)) { skb_push(new_skb, VLAN_HLEN); skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4); skb_copy_to_linear_data_offset(new_skb, 4, @@ -2666,22 +2996,24 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) tag = (u16 *)(new_skb->data + 12); *tag = __constant_htons(ETH_P_8021Q); *(tag + 1) = htons(vlan_tx_tag_get(new_skb)); - new_skb->vlan_tci = 0; } } netif_stop_queue(dev); /* fix hardware limitation: as long as we do not have sbal - * chaining we can not send long frag lists so we temporary - * switch to EDDP + * chaining we can not send long frag lists */ - if ((large_send == QETH_LARGE_SEND_TSO) && - ((skb_shinfo(new_skb)->nr_frags + 2) > 16)) - large_send = QETH_LARGE_SEND_EDDP; + if (large_send) { + if (qeth_l3_tso_elements(new_skb) + 1 > 16) { + if (skb_linearize(new_skb)) + goto tx_drop; + if (card->options.performance_stats) + card->perf_stats.tx_lin++; + } + } - if ((large_send == QETH_LARGE_SEND_TSO) && - (cast_type == RTN_UNSPEC)) { + if (large_send && (cast_type == RTN_UNSPEC)) { hdr = (struct qeth_hdr *)skb_push(new_skb, sizeof(struct qeth_hdr_tso)); memset(hdr, 0, sizeof(struct qeth_hdr_tso)); @@ -2695,43 +3027,44 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type); } else { - qeth_l3_fill_header(card, hdr, new_skb, ipv, - cast_type); - hdr->hdr.l3.length = new_skb->len - data_offset; + if (new_skb->protocol == ETH_P_AF_IUCV) + qeth_l3_fill_af_iucv_hdr(card, hdr, new_skb); + else { + qeth_l3_fill_header(card, hdr, new_skb, ipv, + cast_type); + hdr->hdr.l3.length = new_skb->len - data_offset; + } } + + if (skb->ip_summed == CHECKSUM_PARTIAL) + qeth_l3_hdr_csum(card, hdr, new_skb); } - if (large_send == QETH_LARGE_SEND_EDDP) { - /* new_skb is not owned by a socket so we use skb to get - * the protocol - */ - ctx = qeth_eddp_create_context(card, new_skb, hdr, - skb->sk->sk_protocol); - if (ctx == NULL) { - QETH_DBF_MESSAGE(2, "could not create eddp context\n"); - goto tx_drop; - } - } else { - int elems = qeth_get_elements_no(card, (void *)hdr, new_skb, - elements_needed); - if (!elems) { - if (data_offset >= 0) - kmem_cache_free(qeth_core_header_cache, hdr); - goto tx_drop; - } - elements_needed += elems; + elems = qeth_get_elements_no(card, new_skb, elements_needed); + if (!elems) { + if (data_offset >= 0) + kmem_cache_free(qeth_core_header_cache, hdr); + goto tx_drop; } + elements_needed += elems; + nr_frags = skb_shinfo(new_skb)->nr_frags; - if ((large_send == QETH_LARGE_SEND_NO) && - (new_skb->ip_summed == CHECKSUM_PARTIAL)) - qeth_tx_csum(new_skb); + if (card->info.type != QETH_CARD_TYPE_IQD) { + int len; + if (large_send) + len = ((unsigned long)tcp_hdr(new_skb) + + tcp_hdr(new_skb)->doff * 4) - + (unsigned long)new_skb->data; + else + len = sizeof(struct qeth_hdr_layer3); - if (card->info.type != QETH_CARD_TYPE_IQD) + if (qeth_hdr_chk_and_bounce(new_skb, &hdr, len)) + goto tx_drop; rc = qeth_do_send_packet(card, queue, new_skb, hdr, - elements_needed, ctx); - else + elements_needed); + } else rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, - elements_needed, ctx, data_offset, 0); + elements_needed, data_offset, 0); if (!rc) { card->stats.tx_packets++; @@ -2739,26 +3072,18 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) if (new_skb != skb) dev_kfree_skb_any(skb); if (card->options.performance_stats) { - if (large_send != QETH_LARGE_SEND_NO) { + if (large_send) { card->perf_stats.large_send_bytes += tx_bytes; card->perf_stats.large_send_cnt++; } - if (skb_shinfo(new_skb)->nr_frags > 0) { + if (nr_frags) { card->perf_stats.sg_skbs_sent++; /* nr_frags + skb->data */ - card->perf_stats.sg_frags_sent += - skb_shinfo(new_skb)->nr_frags + 1; + card->perf_stats.sg_frags_sent += nr_frags + 1; } } - - if (ctx != NULL) { - qeth_eddp_put_context(ctx); - dev_kfree_skb_any(new_skb); - } + rc = NETDEV_TX_OK; } else { - if (ctx != NULL) - qeth_eddp_put_context(ctx); - if (data_offset >= 0) kmem_cache_free(qeth_core_header_cache, hdr); @@ -2786,100 +3111,94 @@ tx_drop: return NETDEV_TX_OK; } -static int qeth_l3_open(struct net_device *dev) +static int __qeth_l3_open(struct net_device *dev) { struct qeth_card *card = dev->ml_priv; + int rc = 0; - QETH_DBF_TEXT(TRACE, 4, "qethopen"); + QETH_CARD_TEXT(card, 4, "qethopen"); + if (card->state == CARD_STATE_UP) + return rc; if (card->state != CARD_STATE_SOFTSETUP) return -ENODEV; card->data.state = CH_STATE_UP; card->state = CARD_STATE_UP; - card->dev->flags |= IFF_UP; netif_start_queue(dev); - if (!card->lan_online && netif_carrier_ok(dev)) - netif_carrier_off(dev); - return 0; + if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) { + napi_enable(&card->napi); + napi_schedule(&card->napi); + } else + rc = -EIO; + return rc; +} + +static int qeth_l3_open(struct net_device *dev) +{ + struct qeth_card *card = dev->ml_priv; + + QETH_CARD_TEXT(card, 5, "qethope_"); + if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { + QETH_CARD_TEXT(card, 3, "openREC"); + return -ERESTARTSYS; + } + return __qeth_l3_open(dev); } static int qeth_l3_stop(struct net_device *dev) { struct qeth_card *card = dev->ml_priv; - QETH_DBF_TEXT(TRACE, 4, "qethstop"); + QETH_CARD_TEXT(card, 4, "qethstop"); netif_tx_disable(dev); - card->dev->flags &= ~IFF_UP; - if (card->state == CARD_STATE_UP) + if (card->state == CARD_STATE_UP) { card->state = CARD_STATE_SOFTSETUP; + napi_disable(&card->napi); + } return 0; } -static u32 qeth_l3_ethtool_get_rx_csum(struct net_device *dev) +static netdev_features_t qeth_l3_fix_features(struct net_device *dev, + netdev_features_t features) { struct qeth_card *card = dev->ml_priv; - return (card->options.checksum_type == HW_CHECKSUMMING); + if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) + features &= ~NETIF_F_IP_CSUM; + if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) + features &= ~NETIF_F_TSO; + if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) + features &= ~NETIF_F_RXCSUM; + + return features; } -static int qeth_l3_ethtool_set_rx_csum(struct net_device *dev, u32 data) +static int qeth_l3_set_features(struct net_device *dev, + netdev_features_t features) { struct qeth_card *card = dev->ml_priv; - enum qeth_card_states old_state; - enum qeth_checksum_types csum_type; + u32 changed = dev->features ^ features; + int err; - if ((card->state != CARD_STATE_UP) && - (card->state != CARD_STATE_DOWN)) - return -EPERM; - - if (data) - csum_type = HW_CHECKSUMMING; - else - csum_type = SW_CHECKSUMMING; + if (!(changed & NETIF_F_RXCSUM)) + return 0; - if (card->options.checksum_type != csum_type) { - old_state = card->state; - if (card->state == CARD_STATE_UP) - __qeth_l3_set_offline(card->gdev, 1); - card->options.checksum_type = csum_type; - if (old_state == CARD_STATE_UP) - __qeth_l3_set_online(card->gdev, 1); - } - return 0; -} + if (card->state == CARD_STATE_DOWN || + card->state == CARD_STATE_RECOVER) + return 0; -static int qeth_l3_ethtool_set_tso(struct net_device *dev, u32 data) -{ - struct qeth_card *card = dev->ml_priv; + err = qeth_l3_set_rx_csum(card, features & NETIF_F_RXCSUM); + if (err) + dev->features = features ^ NETIF_F_RXCSUM; - if (data) { - if (card->options.large_send == QETH_LARGE_SEND_NO) { - if (card->info.type == QETH_CARD_TYPE_IQD) - card->options.large_send = QETH_LARGE_SEND_EDDP; - else - card->options.large_send = QETH_LARGE_SEND_TSO; - dev->features |= NETIF_F_TSO; - } - } else { - dev->features &= ~NETIF_F_TSO; - card->options.large_send = QETH_LARGE_SEND_NO; - } - return 0; + return err; } -static struct ethtool_ops qeth_l3_ethtool_ops = { +static const struct ethtool_ops qeth_l3_ethtool_ops = { .get_link = ethtool_op_get_link, - .get_tx_csum = ethtool_op_get_tx_csum, - .set_tx_csum = ethtool_op_set_tx_hw_csum, - .get_rx_csum = qeth_l3_ethtool_get_rx_csum, - .set_rx_csum = qeth_l3_ethtool_set_rx_csum, - .get_sg = ethtool_op_get_sg, - .set_sg = ethtool_op_set_sg, - .get_tso = ethtool_op_get_tso, - .set_tso = qeth_l3_ethtool_set_tso, .get_strings = qeth_core_get_strings, .get_ethtool_stats = qeth_core_get_ethtool_stats, - .get_stats_count = qeth_core_get_stats_count, + .get_sset_count = qeth_core_get_sset_count, .get_drvinfo = qeth_core_get_drvinfo, .get_settings = qeth_core_ethtool_get_settings, }; @@ -2908,113 +3227,99 @@ qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np) return 0; } +static const struct net_device_ops qeth_l3_netdev_ops = { + .ndo_open = qeth_l3_open, + .ndo_stop = qeth_l3_stop, + .ndo_get_stats = qeth_get_stats, + .ndo_start_xmit = qeth_l3_hard_start_xmit, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_rx_mode = qeth_l3_set_multicast_list, + .ndo_do_ioctl = qeth_l3_do_ioctl, + .ndo_change_mtu = qeth_change_mtu, + .ndo_fix_features = qeth_l3_fix_features, + .ndo_set_features = qeth_l3_set_features, + .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid, + .ndo_tx_timeout = qeth_tx_timeout, +}; + +static const struct net_device_ops qeth_l3_osa_netdev_ops = { + .ndo_open = qeth_l3_open, + .ndo_stop = qeth_l3_stop, + .ndo_get_stats = qeth_get_stats, + .ndo_start_xmit = qeth_l3_hard_start_xmit, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_rx_mode = qeth_l3_set_multicast_list, + .ndo_do_ioctl = qeth_l3_do_ioctl, + .ndo_change_mtu = qeth_change_mtu, + .ndo_fix_features = qeth_l3_fix_features, + .ndo_set_features = qeth_l3_set_features, + .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid, + .ndo_tx_timeout = qeth_tx_timeout, + .ndo_neigh_setup = qeth_l3_neigh_setup, +}; + static int qeth_l3_setup_netdev(struct qeth_card *card) { - if (card->info.type == QETH_CARD_TYPE_OSAE) { + if (card->info.type == QETH_CARD_TYPE_OSD || + card->info.type == QETH_CARD_TYPE_OSX) { if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) || (card->info.link_type == QETH_LINK_TYPE_HSTR)) { -#ifdef CONFIG_TR - card->dev = alloc_trdev(0); -#endif - if (!card->dev) - return -ENODEV; + pr_info("qeth_l3: ignoring TR device\n"); + return -ENODEV; } else { card->dev = alloc_etherdev(0); if (!card->dev) return -ENODEV; - card->dev->neigh_setup = qeth_l3_neigh_setup; + card->dev->netdev_ops = &qeth_l3_osa_netdev_ops; /*IPv6 address autoconfiguration stuff*/ qeth_l3_get_unique_id(card); if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD)) card->dev->dev_id = card->info.unique_id & 0xffff; + if (!card->info.guestlan) { + card->dev->hw_features = NETIF_F_SG | + NETIF_F_RXCSUM | NETIF_F_IP_CSUM | + NETIF_F_TSO; + card->dev->features = NETIF_F_RXCSUM; + } } } else if (card->info.type == QETH_CARD_TYPE_IQD) { card->dev = alloc_netdev(0, "hsi%d", ether_setup); if (!card->dev) return -ENODEV; card->dev->flags |= IFF_NOARP; + card->dev->netdev_ops = &qeth_l3_netdev_ops; qeth_l3_iqd_read_initial_mac(card); + if (card->options.hsuid[0]) + memcpy(card->dev->perm_addr, card->options.hsuid, 9); } else return -ENODEV; - card->dev->hard_start_xmit = qeth_l3_hard_start_xmit; card->dev->ml_priv = card; - card->dev->tx_timeout = &qeth_tx_timeout; card->dev->watchdog_timeo = QETH_TX_TIMEOUT; - card->dev->open = qeth_l3_open; - card->dev->stop = qeth_l3_stop; - card->dev->do_ioctl = qeth_l3_do_ioctl; - card->dev->get_stats = qeth_get_stats; - card->dev->change_mtu = qeth_change_mtu; - card->dev->set_multicast_list = qeth_l3_set_multicast_list; - card->dev->vlan_rx_register = qeth_l3_vlan_rx_register; - card->dev->vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid; - card->dev->vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid; card->dev->mtu = card->info.initial_mtu; - card->dev->set_mac_address = NULL; - SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops); - card->dev->features |= NETIF_F_HW_VLAN_TX | - NETIF_F_HW_VLAN_RX | - NETIF_F_HW_VLAN_FILTER; + card->dev->ethtool_ops = &qeth_l3_ethtool_ops; + card->dev->features |= NETIF_F_HW_VLAN_CTAG_TX | + NETIF_F_HW_VLAN_CTAG_RX | + NETIF_F_HW_VLAN_CTAG_FILTER; + card->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; + card->dev->gso_max_size = 15 * PAGE_SIZE; SET_NETDEV_DEV(card->dev, &card->gdev->dev); + netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT); return register_netdev(card->dev); } -static void qeth_l3_qdio_input_handler(struct ccw_device *ccwdev, - unsigned int qdio_err, unsigned int queue, int first_element, - int count, unsigned long card_ptr) -{ - struct net_device *net_dev; - struct qeth_card *card; - struct qeth_qdio_buffer *buffer; - int index; - int i; - - card = (struct qeth_card *) card_ptr; - net_dev = card->dev; - if (card->options.performance_stats) { - card->perf_stats.inbound_cnt++; - card->perf_stats.inbound_start_time = qeth_get_micros(); - } - if (qdio_err & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) { - QETH_DBF_TEXT(TRACE, 1, "qdinchk"); - QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); - QETH_DBF_TEXT_(TRACE, 1, "%04X%04X", - first_element, count); - QETH_DBF_TEXT_(TRACE, 1, "%04X", queue); - qeth_schedule_recovery(card); - return; - } - for (i = first_element; i < (first_element + count); ++i) { - index = i % QDIO_MAX_BUFFERS_PER_Q; - buffer = &card->qdio.in_q->bufs[index]; - if (!(qdio_err && - qeth_check_qdio_errors(buffer->buffer, - qdio_err, "qinerr"))) - qeth_l3_process_inbound_buffer(card, buffer, index); - /* clear buffer and give back to hardware */ - qeth_put_buffer_pool_entry(card, buffer->pool_entry); - qeth_queue_input_buffer(card, index); - } - if (card->options.performance_stats) - card->perf_stats.inbound_time += qeth_get_micros() - - card->perf_stats.inbound_start_time; -} - static int qeth_l3_probe_device(struct ccwgroup_device *gdev) { struct qeth_card *card = dev_get_drvdata(&gdev->dev); qeth_l3_create_device_attributes(&gdev->dev); card->options.layer2 = 0; - card->discipline.input_handler = (qdio_handler_t *) - qeth_l3_qdio_input_handler; - card->discipline.output_handler = (qdio_handler_t *) - qeth_qdio_output_handler; - card->discipline.recover = qeth_l3_recover; + card->info.hwtrap = 0; return 0; } @@ -3022,20 +3327,20 @@ static void qeth_l3_remove_device(struct ccwgroup_device *cgdev) { struct qeth_card *card = dev_get_drvdata(&cgdev->dev); + qeth_l3_remove_device_attributes(&cgdev->dev); + + qeth_set_allowed_threads(card, 0, 1); wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); - if (cgdev->state == CCWGROUP_ONLINE) { - card->use_hard_stop = 1; + if (cgdev->state == CCWGROUP_ONLINE) qeth_l3_set_offline(cgdev); - } if (card->dev) { unregister_netdev(card->dev); card->dev = NULL; } - qeth_l3_remove_device_attributes(&cgdev->dev); - qeth_l3_clear_ip_list(card, 0, 0); + qeth_l3_clear_ip_list(card, 0); qeth_l3_clear_ipato_list(card); return; } @@ -3046,46 +3351,33 @@ static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode) int rc = 0; enum qeth_card_states recover_flag; - BUG_ON(!card); + mutex_lock(&card->discipline_mutex); + mutex_lock(&card->conf_mutex); QETH_DBF_TEXT(SETUP, 2, "setonlin"); QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); - qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1); - if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)) { - PRINT_WARN("set_online of card %s interrupted by user!\n", - CARD_BUS_ID(card)); - return -ERESTARTSYS; - } - recover_flag = card->state; - rc = ccw_device_set_online(CARD_RDEV(card)); - if (rc) { - QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); - return -EIO; - } - rc = ccw_device_set_online(CARD_WDEV(card)); - if (rc) { - QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); - return -EIO; - } - rc = ccw_device_set_online(CARD_DDEV(card)); - if (rc) { - QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); - return -EIO; - } - rc = qeth_core_hardsetup_card(card); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); + rc = -ENODEV; goto out_remove; } - qeth_l3_query_ipassists(card, QETH_PROT_IPV4); - - if (!card->dev && qeth_l3_setup_netdev(card)) + if (!card->dev && qeth_l3_setup_netdev(card)) { + rc = -ENODEV; goto out_remove; + } + + if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) { + if (card->info.hwtrap && + qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM)) + card->info.hwtrap = 0; + } else + card->info.hwtrap = 0; card->state = CARD_STATE_HARDSETUP; + memset(&card->rx, 0, sizeof(struct qeth_rx)); qeth_print_status_message(card); /* softsetup */ @@ -3095,63 +3387,77 @@ static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode) if (rc) { QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); if (rc == 0xe080) { - PRINT_WARN("LAN on card %s if offline! " - "Waiting for STARTLAN from card.\n", - CARD_BUS_ID(card)); + dev_warn(&card->gdev->dev, + "The LAN is offline\n"); card->lan_online = 0; + goto contin; } - return rc; + rc = -ENODEV; + goto out_remove; } else card->lan_online = 1; - qeth_set_large_send(card, card->options.large_send); +contin: rc = qeth_l3_setadapter_parms(card); if (rc) QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); - rc = qeth_l3_start_ipassists(card); - if (rc) - QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); - rc = qeth_l3_setrouting_v4(card); - if (rc) - QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); - rc = qeth_l3_setrouting_v6(card); - if (rc) - QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); + if (!card->options.sniffer) { + rc = qeth_l3_start_ipassists(card); + if (rc) { + QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); + goto out_remove; + } + rc = qeth_l3_setrouting_v4(card); + if (rc) + QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); + rc = qeth_l3_setrouting_v6(card); + if (rc) + QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); + } netif_tx_disable(card->dev); rc = qeth_init_qdio_queues(card); if (rc) { QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); + rc = -ENODEV; goto out_remove; } card->state = CARD_STATE_SOFTSETUP; - netif_carrier_on(card->dev); qeth_set_allowed_threads(card, 0xffffffff, 0); + qeth_l3_set_ip_addr_list(card); + if (card->lan_online) + netif_carrier_on(card->dev); + else + netif_carrier_off(card->dev); if (recover_flag == CARD_STATE_RECOVER) { + rtnl_lock(); if (recovery_mode) - qeth_l3_open(card->dev); - else { - rtnl_lock(); + __qeth_l3_open(card->dev); + else dev_open(card->dev); - rtnl_unlock(); - } qeth_l3_set_multicast_list(card->dev); + rtnl_unlock(); } + qeth_trace_features(card); /* let user_space know that device is online */ kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); + mutex_unlock(&card->conf_mutex); + mutex_unlock(&card->discipline_mutex); return 0; out_remove: - card->use_hard_stop = 1; qeth_l3_stop_card(card, 0); ccw_device_set_offline(CARD_DDEV(card)); ccw_device_set_offline(CARD_WDEV(card)); ccw_device_set_offline(CARD_RDEV(card)); + qdio_free(CARD_DDEV(card)); if (recover_flag == CARD_STATE_RECOVER) card->state = CARD_STATE_RECOVER; else card->state = CARD_STATE_DOWN; - return -ENODEV; + mutex_unlock(&card->conf_mutex); + mutex_unlock(&card->discipline_mutex); + return rc; } static int qeth_l3_set_online(struct ccwgroup_device *gdev) @@ -3166,16 +3472,23 @@ static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev, int rc = 0, rc2 = 0, rc3 = 0; enum qeth_card_states recover_flag; + mutex_lock(&card->discipline_mutex); + mutex_lock(&card->conf_mutex); QETH_DBF_TEXT(SETUP, 3, "setoffl"); QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); if (card->dev && netif_carrier_ok(card->dev)) netif_carrier_off(card->dev); recover_flag = card->state; - if (qeth_l3_stop_card(card, recovery_mode) == -ERESTARTSYS) { - PRINT_WARN("Stopping card %s interrupted by user!\n", - CARD_BUS_ID(card)); - return -ERESTARTSYS; + if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) { + qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); + card->info.hwtrap = 1; + } + qeth_l3_stop_card(card, recovery_mode); + if ((card->options.cq == QETH_CQ_ENABLED) && card->dev) { + rtnl_lock(); + call_netdevice_notifiers(NETDEV_REBOOT, card->dev); + rtnl_unlock(); } rc = ccw_device_set_offline(CARD_DDEV(card)); rc2 = ccw_device_set_offline(CARD_WDEV(card)); @@ -3184,10 +3497,13 @@ static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev, rc = (rc2) ? rc2 : rc3; if (rc) QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); + qdio_free(CARD_DDEV(card)); if (recover_flag == CARD_STATE_UP) card->state = CARD_STATE_RECOVER; /* let user_space know that device is offline */ kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); + mutex_unlock(&card->conf_mutex); + mutex_unlock(&card->discipline_mutex); return 0; } @@ -3202,44 +3518,110 @@ static int qeth_l3_recover(void *ptr) int rc = 0; card = (struct qeth_card *) ptr; - QETH_DBF_TEXT(TRACE, 2, "recover1"); - QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *)); + QETH_CARD_TEXT(card, 2, "recover1"); + QETH_CARD_HEX(card, 2, &card, sizeof(void *)); if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) return 0; - QETH_DBF_TEXT(TRACE, 2, "recover2"); - PRINT_WARN("Recovery of device %s started ...\n", - CARD_BUS_ID(card)); - card->use_hard_stop = 1; + QETH_CARD_TEXT(card, 2, "recover2"); + dev_warn(&card->gdev->dev, + "A recovery process has been started for the device\n"); + qeth_set_recovery_task(card); __qeth_l3_set_offline(card->gdev, 1); rc = __qeth_l3_set_online(card->gdev, 1); - /* don't run another scheduled recovery */ + if (!rc) + dev_info(&card->gdev->dev, + "Device successfully recovered!\n"); + else { + qeth_close_dev(card); + dev_warn(&card->gdev->dev, "The qeth device driver " + "failed to recover an error on the device\n"); + } + qeth_clear_recovery_task(card); qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); - if (!rc) - PRINT_INFO("Device %s successfully recovered!\n", - CARD_BUS_ID(card)); - else - PRINT_INFO("Device %s could not be recovered!\n", - CARD_BUS_ID(card)); return 0; } static void qeth_l3_shutdown(struct ccwgroup_device *gdev) { struct qeth_card *card = dev_get_drvdata(&gdev->dev); - qeth_l3_clear_ip_list(card, 0, 0); + qeth_set_allowed_threads(card, 0, 1); + if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap) + qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); qeth_qdio_clear_card(card, 0); qeth_clear_qdio_buffers(card); + qdio_free(CARD_DDEV(card)); } -struct ccwgroup_driver qeth_l3_ccwgroup_driver = { - .probe = qeth_l3_probe_device, +static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev) +{ + struct qeth_card *card = dev_get_drvdata(&gdev->dev); + + if (card->dev) + netif_device_detach(card->dev); + qeth_set_allowed_threads(card, 0, 1); + wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); + if (gdev->state == CCWGROUP_OFFLINE) + return 0; + if (card->state == CARD_STATE_UP) { + if (card->info.hwtrap) + qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); + __qeth_l3_set_offline(card->gdev, 1); + } else + __qeth_l3_set_offline(card->gdev, 0); + return 0; +} + +static int qeth_l3_pm_resume(struct ccwgroup_device *gdev) +{ + struct qeth_card *card = dev_get_drvdata(&gdev->dev); + int rc = 0; + + if (gdev->state == CCWGROUP_OFFLINE) + goto out; + + if (card->state == CARD_STATE_RECOVER) { + rc = __qeth_l3_set_online(card->gdev, 1); + if (rc) { + rtnl_lock(); + dev_close(card->dev); + rtnl_unlock(); + } + } else + rc = __qeth_l3_set_online(card->gdev, 0); +out: + qeth_set_allowed_threads(card, 0xffffffff, 0); + if (card->dev) + netif_device_attach(card->dev); + if (rc) + dev_warn(&card->gdev->dev, "The qeth device driver " + "failed to recover an error on the device\n"); + return rc; +} + +/* Returns zero if the command is successfully "consumed" */ +static int qeth_l3_control_event(struct qeth_card *card, + struct qeth_ipa_cmd *cmd) +{ + return 1; +} + +struct qeth_discipline qeth_l3_discipline = { + .start_poll = qeth_qdio_start_poll, + .input_handler = (qdio_handler_t *) qeth_qdio_input_handler, + .output_handler = (qdio_handler_t *) qeth_qdio_output_handler, + .recover = qeth_l3_recover, + .setup = qeth_l3_probe_device, .remove = qeth_l3_remove_device, .set_online = qeth_l3_set_online, .set_offline = qeth_l3_set_offline, .shutdown = qeth_l3_shutdown, + .freeze = qeth_l3_pm_suspend, + .thaw = qeth_l3_pm_resume, + .restore = qeth_l3_pm_resume, + .control_event_handler = qeth_l3_control_event, }; -EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver); +EXPORT_SYMBOL_GPL(qeth_l3_discipline); static int qeth_l3_ip_event(struct notifier_block *this, unsigned long event, void *ptr) @@ -3252,10 +3634,10 @@ static int qeth_l3_ip_event(struct notifier_block *this, if (dev_net(dev) != &init_net) return NOTIFY_DONE; - QETH_DBF_TEXT(TRACE, 3, "ipevent"); card = qeth_l3_get_card_from_dev(dev); if (!card) return NOTIFY_DONE; + QETH_CARD_TEXT(card, 3, "ipevent"); addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4); if (addr != NULL) { @@ -3299,11 +3681,10 @@ static int qeth_l3_ip6_event(struct notifier_block *this, struct qeth_ipaddr *addr; struct qeth_card *card; - QETH_DBF_TEXT(TRACE, 3, "ip6event"); - card = qeth_l3_get_card_from_dev(dev); if (!card) return NOTIFY_DONE; + QETH_CARD_TEXT(card, 3, "ip6event"); if (!qeth_is_supported(card, IPA_IPV6)) return NOTIFY_DONE; @@ -3342,7 +3723,7 @@ static int qeth_l3_register_notifiers(void) { int rc; - QETH_DBF_TEXT(TRACE, 5, "regnotif"); + QETH_DBF_TEXT(SETUP, 5, "regnotif"); rc = register_inetaddr_notifier(&qeth_l3_ip_notifier); if (rc) return rc; @@ -3353,7 +3734,7 @@ static int qeth_l3_register_notifiers(void) return rc; } #else - PRINT_WARN("layer 3 discipline no IPv6 support\n"); + pr_warning("There is no IPv6 support for the layer 3 discipline\n"); #endif return 0; } @@ -3361,10 +3742,10 @@ static int qeth_l3_register_notifiers(void) static void qeth_l3_unregister_notifiers(void) { - QETH_DBF_TEXT(TRACE, 5, "unregnot"); - BUG_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier)); + QETH_DBF_TEXT(SETUP, 5, "unregnot"); + WARN_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier)); #ifdef CONFIG_QETH_IPV6 - BUG_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier)); + WARN_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier)); #endif /* QETH_IPV6 */ } @@ -3372,7 +3753,7 @@ static int __init qeth_l3_init(void) { int rc = 0; - PRINT_INFO("register layer 3 discipline\n"); + pr_info("register layer 3 discipline\n"); rc = qeth_l3_register_notifiers(); return rc; } @@ -3380,7 +3761,7 @@ static int __init qeth_l3_init(void) static void __exit qeth_l3_exit(void) { qeth_l3_unregister_notifiers(); - PRINT_INFO("unregister layer 3 discipline\n"); + pr_info("unregister layer 3 discipline\n"); } module_init(qeth_l3_init); diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c index 210ddb63974..adef5f5de11 100644 --- a/drivers/s390/net/qeth_l3_sys.c +++ b/drivers/s390/net/qeth_l3_sys.c @@ -1,6 +1,4 @@ /* - * drivers/s390/net/qeth_l3_sys.c - * * Copyright IBM Corp. 2007 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, * Frank Pavlic <fpavlic@de.ibm.com>, @@ -8,21 +6,13 @@ * Frank Blaschka <frank.blaschka@de.ibm.com> */ +#include <linux/slab.h> +#include <asm/ebcdic.h> #include "qeth_l3.h" #define QETH_DEVICE_ATTR(_id, _name, _mode, _show, _store) \ struct device_attribute dev_attr_##_id = __ATTR(_name, _mode, _show, _store) -static const char *qeth_l3_get_checksum_str(struct qeth_card *card) -{ - if (card->options.checksum_type == SW_CHECKSUMMING) - return "sw"; - else if (card->options.checksum_type == HW_CHECKSUMMING) - return "hw"; - else - return "no"; -} - static ssize_t qeth_l3_dev_route_show(struct qeth_card *card, struct qeth_routing_info *route, char *buf) { @@ -68,10 +58,10 @@ static ssize_t qeth_l3_dev_route_store(struct qeth_card *card, { enum qeth_routing_types old_route_type = route->type; char *tmp; - int rc; + int rc = 0; tmp = strsep((char **) &buf, "\n"); - + mutex_lock(&card->conf_mutex); if (!strcmp(tmp, "no_router")) { route->type = NO_ROUTER; } else if (!strcmp(tmp, "primary_connector")) { @@ -85,7 +75,8 @@ static ssize_t qeth_l3_dev_route_store(struct qeth_card *card, } else if (!strcmp(tmp, "multicast_router")) { route->type = MULTICAST_ROUTER; } else { - return -EINVAL; + rc = -EINVAL; + goto out; } if (((card->state == CARD_STATE_SOFTSETUP) || (card->state == CARD_STATE_UP)) && @@ -95,7 +86,11 @@ static ssize_t qeth_l3_dev_route_store(struct qeth_card *card, else if (prot == QETH_PROT_IPV6) rc = qeth_l3_setrouting_v6(card); } - return count; +out: + if (rc) + route->type = old_route_type; + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static ssize_t qeth_l3_dev_route4_store(struct device *dev, @@ -121,9 +116,6 @@ static ssize_t qeth_l3_dev_route6_show(struct device *dev, if (!card) return -EINVAL; - if (!qeth_is_supported(card, IPA_IPV6)) - return sprintf(buf, "%s\n", "n/a"); - return qeth_l3_dev_route_show(card, &card->options.route6, buf); } @@ -135,10 +127,6 @@ static ssize_t qeth_l3_dev_route6_store(struct device *dev, if (!card) return -EINVAL; - if (!qeth_is_supported(card, IPA_IPV6)) { - return -EOPNOTSUPP; - } - return qeth_l3_dev_route_store(card, &card->options.route6, QETH_PROT_IPV6, buf, count); } @@ -162,176 +150,204 @@ static ssize_t qeth_l3_dev_fake_broadcast_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; - int i; + int i, rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) - return -EPERM; + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; + } i = simple_strtoul(buf, &tmp, 16); if ((i == 0) || (i == 1)) card->options.fake_broadcast = i; - else { - return -EINVAL; - } - return count; + else + rc = -EINVAL; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(fake_broadcast, 0644, qeth_l3_dev_fake_broadcast_show, qeth_l3_dev_fake_broadcast_store); -static ssize_t qeth_l3_dev_broadcast_mode_show(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t qeth_l3_dev_sniffer_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); if (!card) return -EINVAL; - if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) || - (card->info.link_type == QETH_LINK_TYPE_LANE_TR))) - return sprintf(buf, "n/a\n"); - - return sprintf(buf, "%s\n", (card->options.broadcast_mode == - QETH_TR_BROADCAST_ALLRINGS)? - "all rings":"local"); + return sprintf(buf, "%i\n", card->options.sniffer ? 1 : 0); } -static ssize_t qeth_l3_dev_broadcast_mode_store(struct device *dev, +static ssize_t qeth_l3_dev_sniffer_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev_get_drvdata(dev); - char *tmp; + int rc = 0; + unsigned long i; if (!card) return -EINVAL; - if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) + if (card->info.type != QETH_CARD_TYPE_IQD) + return -EPERM; + if (card->options.cq == QETH_CQ_ENABLED) return -EPERM; - if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) || - (card->info.link_type == QETH_LINK_TYPE_LANE_TR))) { - return -EINVAL; + mutex_lock(&card->conf_mutex); + if ((card->state != CARD_STATE_DOWN) && + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; } - tmp = strsep((char **) &buf, "\n"); - - if (!strcmp(tmp, "local")) { - card->options.broadcast_mode = QETH_TR_BROADCAST_LOCAL; - return count; - } else if (!strcmp(tmp, "all_rings")) { - card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS; - return count; - } else { - return -EINVAL; + rc = kstrtoul(buf, 16, &i); + if (rc) { + rc = -EINVAL; + goto out; } - return count; + switch (i) { + case 0: + card->options.sniffer = i; + break; + case 1: + qdio_get_ssqd_desc(CARD_DDEV(card), &card->ssqd); + if (card->ssqd.qdioac2 & QETH_SNIFF_AVAIL) { + card->options.sniffer = i; + if (card->qdio.init_pool.buf_count != + QETH_IN_BUF_COUNT_MAX) + qeth_realloc_buffer_pool(card, + QETH_IN_BUF_COUNT_MAX); + } else + rc = -EPERM; + break; + default: + rc = -EINVAL; + } +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } -static DEVICE_ATTR(broadcast_mode, 0644, qeth_l3_dev_broadcast_mode_show, - qeth_l3_dev_broadcast_mode_store); +static DEVICE_ATTR(sniffer, 0644, qeth_l3_dev_sniffer_show, + qeth_l3_dev_sniffer_store); -static ssize_t qeth_l3_dev_canonical_macaddr_show(struct device *dev, - struct device_attribute *attr, char *buf) + +static ssize_t qeth_l3_dev_hsuid_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); + char tmp_hsuid[9]; if (!card) return -EINVAL; - if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) || - (card->info.link_type == QETH_LINK_TYPE_LANE_TR))) - return sprintf(buf, "n/a\n"); + if (card->info.type != QETH_CARD_TYPE_IQD) + return -EPERM; + + if (card->state == CARD_STATE_DOWN) + return -EPERM; - return sprintf(buf, "%i\n", (card->options.macaddr_mode == - QETH_TR_MACADDR_CANONICAL)? 1:0); + memcpy(tmp_hsuid, card->options.hsuid, sizeof(tmp_hsuid)); + EBCASC(tmp_hsuid, 8); + return sprintf(buf, "%s\n", tmp_hsuid); } -static ssize_t qeth_l3_dev_canonical_macaddr_store(struct device *dev, +static ssize_t qeth_l3_dev_hsuid_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev_get_drvdata(dev); + struct qeth_ipaddr *addr; char *tmp; int i; if (!card) return -EINVAL; - if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) + if (card->info.type != QETH_CARD_TYPE_IQD) + return -EPERM; + if (card->state != CARD_STATE_DOWN && + card->state != CARD_STATE_RECOVER) + return -EPERM; + if (card->options.sniffer) + return -EPERM; + if (card->options.cq == QETH_CQ_NOTAVAILABLE) return -EPERM; - if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) || - (card->info.link_type == QETH_LINK_TYPE_LANE_TR))) { + tmp = strsep((char **)&buf, "\n"); + if (strlen(tmp) > 8) return -EINVAL; - } - i = simple_strtoul(buf, &tmp, 16); - if ((i == 0) || (i == 1)) - card->options.macaddr_mode = i? - QETH_TR_MACADDR_CANONICAL : - QETH_TR_MACADDR_NONCANONICAL; - else { - return -EINVAL; + if (card->options.hsuid[0]) { + /* delete old ip address */ + addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6); + if (addr != NULL) { + addr->u.a6.addr.s6_addr32[0] = 0xfe800000; + addr->u.a6.addr.s6_addr32[1] = 0x00000000; + for (i = 8; i < 16; i++) + addr->u.a6.addr.s6_addr[i] = + card->options.hsuid[i - 8]; + addr->u.a6.pfxlen = 0; + addr->type = QETH_IP_TYPE_NORMAL; + } else + return -ENOMEM; + if (!qeth_l3_delete_ip(card, addr)) + kfree(addr); + qeth_l3_set_ip_addr_list(card); } - return count; -} - -static DEVICE_ATTR(canonical_macaddr, 0644, qeth_l3_dev_canonical_macaddr_show, - qeth_l3_dev_canonical_macaddr_store); - -static ssize_t qeth_l3_dev_checksum_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct qeth_card *card = dev_get_drvdata(dev); - - if (!card) - return -EINVAL; - - return sprintf(buf, "%s checksumming\n", - qeth_l3_get_checksum_str(card)); -} - -static ssize_t qeth_l3_dev_checksum_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - struct qeth_card *card = dev_get_drvdata(dev); - char *tmp; - if (!card) - return -EINVAL; + if (strlen(tmp) == 0) { + /* delete ip address only */ + card->options.hsuid[0] = '\0'; + if (card->dev) + memcpy(card->dev->perm_addr, card->options.hsuid, 9); + qeth_configure_cq(card, QETH_CQ_DISABLED); + return count; + } - if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) + if (qeth_configure_cq(card, QETH_CQ_ENABLED)) return -EPERM; - tmp = strsep((char **) &buf, "\n"); - if (!strcmp(tmp, "sw_checksumming")) - card->options.checksum_type = SW_CHECKSUMMING; - else if (!strcmp(tmp, "hw_checksumming")) - card->options.checksum_type = HW_CHECKSUMMING; - else if (!strcmp(tmp, "no_checksumming")) - card->options.checksum_type = NO_CHECKSUMMING; - else { - return -EINVAL; - } + snprintf(card->options.hsuid, sizeof(card->options.hsuid), + "%-8s", tmp); + ASCEBC(card->options.hsuid, 8); + if (card->dev) + memcpy(card->dev->perm_addr, card->options.hsuid, 9); + + addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6); + if (addr != NULL) { + addr->u.a6.addr.s6_addr32[0] = 0xfe800000; + addr->u.a6.addr.s6_addr32[1] = 0x00000000; + for (i = 8; i < 16; i++) + addr->u.a6.addr.s6_addr[i] = card->options.hsuid[i - 8]; + addr->u.a6.pfxlen = 0; + addr->type = QETH_IP_TYPE_NORMAL; + } else + return -ENOMEM; + if (!qeth_l3_add_ip(card, addr)) + kfree(addr); + qeth_l3_set_ip_addr_list(card); + return count; } -static DEVICE_ATTR(checksumming, 0644, qeth_l3_dev_checksum_show, - qeth_l3_dev_checksum_store); +static DEVICE_ATTR(hsuid, 0644, qeth_l3_dev_hsuid_show, + qeth_l3_dev_hsuid_store); + static struct attribute *qeth_l3_device_attrs[] = { &dev_attr_route4.attr, &dev_attr_route6.attr, &dev_attr_fake_broadcast.attr, - &dev_attr_broadcast_mode.attr, - &dev_attr_canonical_macaddr.attr, - &dev_attr_checksumming.attr, + &dev_attr_sniffer.attr, + &dev_attr_hsuid.attr, NULL, }; @@ -354,26 +370,45 @@ static ssize_t qeth_l3_dev_ipato_enable_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev_get_drvdata(dev); + struct qeth_ipaddr *tmpipa, *t; char *tmp; + int rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) - return -EPERM; + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; + } tmp = strsep((char **) &buf, "\n"); if (!strcmp(tmp, "toggle")) { card->ipato.enabled = (card->ipato.enabled)? 0 : 1; } else if (!strcmp(tmp, "1")) { card->ipato.enabled = 1; + list_for_each_entry_safe(tmpipa, t, card->ip_tbd_list, entry) { + if ((tmpipa->type == QETH_IP_TYPE_NORMAL) && + qeth_l3_is_addr_covered_by_ipato(card, tmpipa)) + tmpipa->set_flags |= + QETH_IPA_SETIP_TAKEOVER_FLAG; + } + } else if (!strcmp(tmp, "0")) { card->ipato.enabled = 0; - } else { - return -EINVAL; - } - return count; + list_for_each_entry_safe(tmpipa, t, card->ip_tbd_list, entry) { + if (tmpipa->set_flags & + QETH_IPA_SETIP_TAKEOVER_FLAG) + tmpipa->set_flags &= + ~QETH_IPA_SETIP_TAKEOVER_FLAG; + } + } else + rc = -EINVAL; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static QETH_DEVICE_ATTR(ipato_enable, enable, 0644, @@ -397,10 +432,12 @@ static ssize_t qeth_l3_dev_ipato_invert4_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; + int rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); tmp = strsep((char **) &buf, "\n"); if (!strcmp(tmp, "toggle")) { card->ipato.invert4 = (card->ipato.invert4)? 0 : 1; @@ -408,10 +445,10 @@ static ssize_t qeth_l3_dev_ipato_invert4_store(struct device *dev, card->ipato.invert4 = 1; } else if (!strcmp(tmp, "0")) { card->ipato.invert4 = 0; - } else { - return -EINVAL; - } - return count; + } else + rc = -EINVAL; + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static QETH_DEVICE_ATTR(ipato_invert4, invert4, 0644, @@ -493,27 +530,28 @@ static ssize_t qeth_l3_dev_ipato_add_store(const char *buf, size_t count, struct qeth_ipato_entry *ipatoe; u8 addr[16]; int mask_bits; - int rc; + int rc = 0; + mutex_lock(&card->conf_mutex); rc = qeth_l3_parse_ipatoe(buf, proto, addr, &mask_bits); if (rc) - return rc; + goto out; ipatoe = kzalloc(sizeof(struct qeth_ipato_entry), GFP_KERNEL); if (!ipatoe) { - return -ENOMEM; + rc = -ENOMEM; + goto out; } ipatoe->proto = proto; memcpy(ipatoe->addr, addr, (proto == QETH_PROT_IPV4)? 4:16); ipatoe->mask_bits = mask_bits; rc = qeth_l3_add_ipato_entry(card, ipatoe); - if (rc) { + if (rc) kfree(ipatoe); - return rc; - } - - return count; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static ssize_t qeth_l3_dev_ipato_add4_store(struct device *dev, @@ -536,15 +574,14 @@ static ssize_t qeth_l3_dev_ipato_del_store(const char *buf, size_t count, { u8 addr[16]; int mask_bits; - int rc; + int rc = 0; + mutex_lock(&card->conf_mutex); rc = qeth_l3_parse_ipatoe(buf, proto, addr, &mask_bits); - if (rc) - return rc; - - qeth_l3_del_ipato_entry(card, proto, addr, mask_bits); - - return count; + if (!rc) + qeth_l3_del_ipato_entry(card, proto, addr, mask_bits); + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static ssize_t qeth_l3_dev_ipato_del4_store(struct device *dev, @@ -577,10 +614,12 @@ static ssize_t qeth_l3_dev_ipato_invert6_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; + int rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); tmp = strsep((char **) &buf, "\n"); if (!strcmp(tmp, "toggle")) { card->ipato.invert6 = (card->ipato.invert6)? 0 : 1; @@ -588,10 +627,10 @@ static ssize_t qeth_l3_dev_ipato_invert6_store(struct device *dev, card->ipato.invert6 = 1; } else if (!strcmp(tmp, "0")) { card->ipato.invert6 = 0; - } else { - return -EINVAL; - } - return count; + } else + rc = -EINVAL; + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static QETH_DEVICE_ATTR(ipato_invert6, invert6, 0644, @@ -713,15 +752,12 @@ static ssize_t qeth_l3_dev_vipa_add_store(const char *buf, size_t count, u8 addr[16] = {0, }; int rc; + mutex_lock(&card->conf_mutex); rc = qeth_l3_parse_vipae(buf, proto, addr); - if (rc) - return rc; - - rc = qeth_l3_add_vipa(card, proto, addr); - if (rc) - return rc; - - return count; + if (!rc) + rc = qeth_l3_add_vipa(card, proto, addr); + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static ssize_t qeth_l3_dev_vipa_add4_store(struct device *dev, @@ -745,13 +781,12 @@ static ssize_t qeth_l3_dev_vipa_del_store(const char *buf, size_t count, u8 addr[16]; int rc; + mutex_lock(&card->conf_mutex); rc = qeth_l3_parse_vipae(buf, proto, addr); - if (rc) - return rc; - - qeth_l3_del_vipa(card, proto, addr); - - return count; + if (!rc) + qeth_l3_del_vipa(card, proto, addr); + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static ssize_t qeth_l3_dev_vipa_del4_store(struct device *dev, @@ -879,15 +914,12 @@ static ssize_t qeth_l3_dev_rxip_add_store(const char *buf, size_t count, u8 addr[16] = {0, }; int rc; + mutex_lock(&card->conf_mutex); rc = qeth_l3_parse_rxipe(buf, proto, addr); - if (rc) - return rc; - - rc = qeth_l3_add_rxip(card, proto, addr); - if (rc) - return rc; - - return count; + if (!rc) + rc = qeth_l3_add_rxip(card, proto, addr); + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static ssize_t qeth_l3_dev_rxip_add4_store(struct device *dev, @@ -911,13 +943,12 @@ static ssize_t qeth_l3_dev_rxip_del_store(const char *buf, size_t count, u8 addr[16]; int rc; + mutex_lock(&card->conf_mutex); rc = qeth_l3_parse_rxipe(buf, proto, addr); - if (rc) - return rc; - - qeth_l3_del_rxip(card, proto, addr); - - return count; + if (!rc) + qeth_l3_del_rxip(card, proto, addr); + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static ssize_t qeth_l3_dev_rxip_del4_store(struct device *dev, diff --git a/drivers/s390/net/smsgiucv.c b/drivers/s390/net/smsgiucv.c index 164e090c262..d8f990b6b33 100644 --- a/drivers/s390/net/smsgiucv.c +++ b/drivers/s390/net/smsgiucv.c @@ -1,7 +1,8 @@ /* * IUCV special message driver * - * Copyright 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 2003, 2009 + * * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) * * This program is free software; you can redistribute it and/or modify @@ -23,6 +24,7 @@ #include <linux/init.h> #include <linux/errno.h> #include <linux/device.h> +#include <linux/slab.h> #include <net/iucv/iucv.h> #include <asm/cpcmd.h> #include <asm/ebcdic.h> @@ -30,9 +32,9 @@ struct smsg_callback { struct list_head list; - char *prefix; + const char *prefix; int len; - void (*callback)(char *from, char *str); + void (*callback)(const char *from, char *str); }; MODULE_AUTHOR @@ -40,9 +42,12 @@ MODULE_AUTHOR MODULE_DESCRIPTION ("Linux for S/390 IUCV special message driver"); static struct iucv_path *smsg_path; +/* dummy device used as trigger for PM functions */ +static struct device *smsg_dev; static DEFINE_SPINLOCK(smsg_list_lock); static LIST_HEAD(smsg_list); +static int iucv_path_connected; static int smsg_path_pending(struct iucv_path *, u8 ipvmid[8], u8 ipuser[16]); static void smsg_message_pending(struct iucv_path *, struct iucv_message *); @@ -55,7 +60,7 @@ static struct iucv_handler smsg_handler = { static int smsg_path_pending(struct iucv_path *path, u8 ipvmid[8], u8 ipuser[16]) { - if (strncmp(ipvmid, "*MSG ", sizeof(ipvmid)) != 0) + if (strncmp(ipvmid, "*MSG ", 8) != 0) return -EINVAL; /* Path pending from *MSG. */ return iucv_path_accept(path, &smsg_handler, "SMSGIUCV ", NULL); @@ -97,8 +102,8 @@ static void smsg_message_pending(struct iucv_path *path, kfree(buffer); } -int smsg_register_callback(char *prefix, - void (*callback)(char *from, char *str)) +int smsg_register_callback(const char *prefix, + void (*callback)(const char *from, char *str)) { struct smsg_callback *cb; @@ -114,8 +119,9 @@ int smsg_register_callback(char *prefix, return 0; } -void smsg_unregister_callback(char *prefix, - void (*callback)(char *from, char *str)) +void smsg_unregister_callback(const char *prefix, + void (*callback)(const char *from, + char *str)) { struct smsg_callback *cb, *tmp; @@ -132,14 +138,60 @@ void smsg_unregister_callback(char *prefix, kfree(cb); } +static int smsg_pm_freeze(struct device *dev) +{ +#ifdef CONFIG_PM_DEBUG + printk(KERN_WARNING "smsg_pm_freeze\n"); +#endif + if (smsg_path && iucv_path_connected) { + iucv_path_sever(smsg_path, NULL); + iucv_path_connected = 0; + } + return 0; +} + +static int smsg_pm_restore_thaw(struct device *dev) +{ + int rc; + +#ifdef CONFIG_PM_DEBUG + printk(KERN_WARNING "smsg_pm_restore_thaw\n"); +#endif + if (smsg_path && !iucv_path_connected) { + memset(smsg_path, 0, sizeof(*smsg_path)); + smsg_path->msglim = 255; + smsg_path->flags = 0; + rc = iucv_path_connect(smsg_path, &smsg_handler, "*MSG ", + NULL, NULL, NULL); +#ifdef CONFIG_PM_DEBUG + if (rc) + printk(KERN_ERR + "iucv_path_connect returned with rc %i\n", rc); +#endif + if (!rc) + iucv_path_connected = 1; + cpcmd("SET SMSG IUCV", NULL, 0, NULL); + } + return 0; +} + +static const struct dev_pm_ops smsg_pm_ops = { + .freeze = smsg_pm_freeze, + .thaw = smsg_pm_restore_thaw, + .restore = smsg_pm_restore_thaw, +}; + static struct device_driver smsg_driver = { - .name = "SMSGIUCV", + .owner = THIS_MODULE, + .name = SMSGIUCV_DRV_NAME, .bus = &iucv_bus, + .pm = &smsg_pm_ops, }; static void __exit smsg_exit(void) { cpcmd("SET SMSG IUCV", NULL, 0, NULL); + device_unregister(smsg_dev); iucv_unregister(&smsg_handler, 1); driver_unregister(&smsg_driver); } @@ -166,12 +218,31 @@ static int __init smsg_init(void) rc = iucv_path_connect(smsg_path, &smsg_handler, "*MSG ", NULL, NULL, NULL); if (rc) - goto out_free; + goto out_free_path; + else + iucv_path_connected = 1; + smsg_dev = kzalloc(sizeof(struct device), GFP_KERNEL); + if (!smsg_dev) { + rc = -ENOMEM; + goto out_free_path; + } + dev_set_name(smsg_dev, "smsg_iucv"); + smsg_dev->bus = &iucv_bus; + smsg_dev->parent = iucv_root; + smsg_dev->release = (void (*)(struct device *))kfree; + smsg_dev->driver = &smsg_driver; + rc = device_register(smsg_dev); + if (rc) + goto out_put; + cpcmd("SET SMSG IUCV", NULL, 0, NULL); return 0; -out_free: +out_put: + put_device(smsg_dev); +out_free_path: iucv_path_free(smsg_path); + smsg_path = NULL; out_register: iucv_unregister(&smsg_handler, 1); out_driver: diff --git a/drivers/s390/net/smsgiucv.h b/drivers/s390/net/smsgiucv.h index 67f5d4f8378..45bc925928c 100644 --- a/drivers/s390/net/smsgiucv.h +++ b/drivers/s390/net/smsgiucv.h @@ -1,10 +1,14 @@ /* * IUCV special message driver * - * Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 2003 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) */ -int smsg_register_callback(char *, void (*)(char *, char *)); -void smsg_unregister_callback(char *, void (*)(char *, char *)); +#define SMSGIUCV_DRV_NAME "SMSGIUCV" + +int smsg_register_callback(const char *, + void (*)(const char *, char *)); +void smsg_unregister_callback(const char *, + void (*)(const char *, char *)); diff --git a/drivers/s390/net/smsgiucv_app.c b/drivers/s390/net/smsgiucv_app.c new file mode 100644 index 00000000000..32515a201bb --- /dev/null +++ b/drivers/s390/net/smsgiucv_app.c @@ -0,0 +1,218 @@ +/* + * Deliver z/VM CP special messages (SMSG) as uevents. + * + * The driver registers for z/VM CP special messages with the + * "APP" prefix. Incoming messages are delivered to user space + * as uevents. + * + * Copyright IBM Corp. 2010 + * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com> + * + */ +#define KMSG_COMPONENT "smsgiucv_app" +#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt + +#include <linux/ctype.h> +#include <linux/err.h> +#include <linux/device.h> +#include <linux/list.h> +#include <linux/kobject.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/spinlock.h> +#include <linux/workqueue.h> +#include <net/iucv/iucv.h> +#include "smsgiucv.h" + +/* prefix used for SMSG registration */ +#define SMSG_PREFIX "APP" + +/* SMSG related uevent environment variables */ +#define ENV_SENDER_STR "SMSG_SENDER=" +#define ENV_SENDER_LEN (strlen(ENV_SENDER_STR) + 8 + 1) +#define ENV_PREFIX_STR "SMSG_ID=" +#define ENV_PREFIX_LEN (strlen(ENV_PREFIX_STR) + \ + strlen(SMSG_PREFIX) + 1) +#define ENV_TEXT_STR "SMSG_TEXT=" +#define ENV_TEXT_LEN(msg) (strlen(ENV_TEXT_STR) + strlen((msg)) + 1) + +/* z/VM user ID which is permitted to send SMSGs + * If the value is undefined or empty (""), special messages are + * accepted from any z/VM user ID. */ +static char *sender; +module_param(sender, charp, 0400); +MODULE_PARM_DESC(sender, "z/VM user ID from which CP SMSGs are accepted"); + +/* SMSG device representation */ +static struct device *smsg_app_dev; + +/* list element for queuing received messages for delivery */ +struct smsg_app_event { + struct list_head list; + char *buf; + char *envp[4]; +}; + +/* queue for outgoing uevents */ +static LIST_HEAD(smsg_event_queue); +static DEFINE_SPINLOCK(smsg_event_queue_lock); + +static void smsg_app_event_free(struct smsg_app_event *ev) +{ + kfree(ev->buf); + kfree(ev); +} + +static struct smsg_app_event *smsg_app_event_alloc(const char *from, + const char *msg) +{ + struct smsg_app_event *ev; + + ev = kzalloc(sizeof(*ev), GFP_ATOMIC); + if (!ev) + return NULL; + + ev->buf = kzalloc(ENV_SENDER_LEN + ENV_PREFIX_LEN + + ENV_TEXT_LEN(msg), GFP_ATOMIC); + if (!ev->buf) { + kfree(ev); + return NULL; + } + + /* setting up environment pointers into buf */ + ev->envp[0] = ev->buf; + ev->envp[1] = ev->envp[0] + ENV_SENDER_LEN; + ev->envp[2] = ev->envp[1] + ENV_PREFIX_LEN; + ev->envp[3] = NULL; + + /* setting up environment: sender, prefix name, and message text */ + snprintf(ev->envp[0], ENV_SENDER_LEN, ENV_SENDER_STR "%s", from); + snprintf(ev->envp[1], ENV_PREFIX_LEN, ENV_PREFIX_STR "%s", SMSG_PREFIX); + snprintf(ev->envp[2], ENV_TEXT_LEN(msg), ENV_TEXT_STR "%s", msg); + + return ev; +} + +static void smsg_event_work_fn(struct work_struct *work) +{ + LIST_HEAD(event_queue); + struct smsg_app_event *p, *n; + struct device *dev; + + dev = get_device(smsg_app_dev); + if (!dev) + return; + + spin_lock_bh(&smsg_event_queue_lock); + list_splice_init(&smsg_event_queue, &event_queue); + spin_unlock_bh(&smsg_event_queue_lock); + + list_for_each_entry_safe(p, n, &event_queue, list) { + list_del(&p->list); + kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, p->envp); + smsg_app_event_free(p); + } + + put_device(dev); +} +static DECLARE_WORK(smsg_event_work, smsg_event_work_fn); + +static void smsg_app_callback(const char *from, char *msg) +{ + struct smsg_app_event *se; + + /* check if the originating z/VM user ID matches + * the configured sender. */ + if (sender && strlen(sender) > 0 && strcmp(from, sender) != 0) + return; + + /* get start of message text (skip prefix and leading blanks) */ + msg += strlen(SMSG_PREFIX); + while (*msg && isspace(*msg)) + msg++; + if (*msg == '\0') + return; + + /* allocate event list element and its environment */ + se = smsg_app_event_alloc(from, msg); + if (!se) + return; + + /* queue event and schedule work function */ + spin_lock(&smsg_event_queue_lock); + list_add_tail(&se->list, &smsg_event_queue); + spin_unlock(&smsg_event_queue_lock); + + schedule_work(&smsg_event_work); + return; +} + +static int __init smsgiucv_app_init(void) +{ + struct device_driver *smsgiucv_drv; + int rc; + + if (!MACHINE_IS_VM) + return -ENODEV; + + smsg_app_dev = kzalloc(sizeof(*smsg_app_dev), GFP_KERNEL); + if (!smsg_app_dev) + return -ENOMEM; + + smsgiucv_drv = driver_find(SMSGIUCV_DRV_NAME, &iucv_bus); + if (!smsgiucv_drv) { + kfree(smsg_app_dev); + return -ENODEV; + } + + rc = dev_set_name(smsg_app_dev, KMSG_COMPONENT); + if (rc) { + kfree(smsg_app_dev); + goto fail; + } + smsg_app_dev->bus = &iucv_bus; + smsg_app_dev->parent = iucv_root; + smsg_app_dev->release = (void (*)(struct device *)) kfree; + smsg_app_dev->driver = smsgiucv_drv; + rc = device_register(smsg_app_dev); + if (rc) { + put_device(smsg_app_dev); + goto fail; + } + + /* convert sender to uppercase characters */ + if (sender) { + int len = strlen(sender); + while (len--) + sender[len] = toupper(sender[len]); + } + + /* register with the smsgiucv device driver */ + rc = smsg_register_callback(SMSG_PREFIX, smsg_app_callback); + if (rc) { + device_unregister(smsg_app_dev); + goto fail; + } + + rc = 0; +fail: + return rc; +} +module_init(smsgiucv_app_init); + +static void __exit smsgiucv_app_exit(void) +{ + /* unregister callback */ + smsg_unregister_callback(SMSG_PREFIX, smsg_app_callback); + + /* cancel pending work and flush any queued event work */ + cancel_work_sync(&smsg_event_work); + smsg_event_work_fn(&smsg_event_work); + + device_unregister(smsg_app_dev); +} +module_exit(smsgiucv_app_exit); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Deliver z/VM CP SMSG as uevents"); +MODULE_AUTHOR("Hendrik Brueckner <brueckner@linux.vnet.ibm.com>"); |