diff options
Diffstat (limited to 'drivers/s390')
77 files changed, 842 insertions, 278 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 4951aa82e9f..acf222f91f5 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -26,6 +26,7 @@ #include <asm/ebcdic.h> #include <asm/idals.h> #include <asm/itcw.h> +#include <asm/diag.h> /* This is ugly... */ #define PRINTK_HEADER "dasd:" @@ -1898,7 +1899,8 @@ restart: /* Process requests that may be recovered */ if (cqr->status == DASD_CQR_NEED_ERP) { erp_fn = base->discipline->erp_action(cqr); - erp_fn(cqr); + if (IS_ERR(erp_fn(cqr))) + continue; goto restart; } @@ -2212,6 +2214,13 @@ static int dasd_open(struct block_device *bdev, fmode_t mode) goto out; } + if ((mode & FMODE_WRITE) && + (test_bit(DASD_FLAG_DEVICE_RO, &base->flags) || + (base->features & DASD_FEATURE_READONLY))) { + rc = -EROFS; + goto out; + } + return 0; out: @@ -2289,6 +2298,34 @@ dasd_exit(void) * SECTION: common functions for ccw_driver use */ +/* + * Is the device read-only? + * Note that this function does not report the setting of the + * readonly device attribute, but how it is configured in z/VM. + */ +int dasd_device_is_ro(struct dasd_device *device) +{ + struct ccw_dev_id dev_id; + struct diag210 diag_data; + int rc; + + if (!MACHINE_IS_VM) + return 0; + ccw_device_get_id(device->cdev, &dev_id); + memset(&diag_data, 0, sizeof(diag_data)); + diag_data.vrdcdvno = dev_id.devno; + diag_data.vrdclen = sizeof(diag_data); + rc = diag210(&diag_data); + if (rc == 0 || rc == 2) { + return diag_data.vrdcvfla & 0x80; + } else { + DBF_EVENT(DBF_WARNING, "diag210 failed for dev=%04x with rc=%d", + dev_id.devno, rc); + return 0; + } +} +EXPORT_SYMBOL_GPL(dasd_device_is_ro); + static void dasd_generic_auto_online(void *data, async_cookie_t cookie) { struct ccw_device *cdev = data; diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c index 44796ba4eb9..6632649dd6a 100644 --- a/drivers/s390/block/dasd_3990_erp.c +++ b/drivers/s390/block/dasd_3990_erp.c @@ -10,7 +10,6 @@ #define KMSG_COMPONENT "dasd-eckd" #include <linux/timer.h> -#include <linux/slab.h> #include <asm/idals.h> #define PRINTK_HEADER "dasd_erp(3990): " @@ -1045,6 +1044,10 @@ dasd_3990_erp_com_rej(struct dasd_ccw_req * erp, char *sense) erp->retries = 5; + } else if (sense[1] & SNS1_WRITE_INHIBITED) { + dev_err(&device->cdev->dev, "An I/O request was rejected" + " because writing is inhibited\n"); + erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED); } else { /* fatal error - set status to FAILED internal error 09 - Command Reject */ @@ -2283,7 +2286,8 @@ static struct dasd_ccw_req *dasd_3990_erp_add_erp(struct dasd_ccw_req *cqr) if (cqr->cpmode == 1) { cplength = 0; - datasize = sizeof(struct tcw) + sizeof(struct tsb); + /* TCW needs to be 64 byte aligned, so leave enough room */ + datasize = 64 + sizeof(struct tcw) + sizeof(struct tsb); } else { cplength = 2; datasize = 0; @@ -2305,15 +2309,15 @@ static struct dasd_ccw_req *dasd_3990_erp_add_erp(struct dasd_ccw_req *cqr) cqr->retries); dasd_block_set_timer(device->block, (HZ << 3)); } - return cqr; + return erp; } ccw = cqr->cpaddr; if (cqr->cpmode == 1) { /* make a shallow copy of the original tcw but set new tsb */ erp->cpmode = 1; - erp->cpaddr = erp->data; - tcw = erp->data; + erp->cpaddr = PTR_ALIGN(erp->data, 64); + tcw = erp->cpaddr; tsb = (struct tsb *) &tcw[1]; *tcw = *((struct tcw *)cqr->cpaddr); tcw->tsb = (long)tsb; @@ -2368,6 +2372,9 @@ dasd_3990_erp_additional_erp(struct dasd_ccw_req * cqr) /* add erp and initialize with default TIC */ erp = dasd_3990_erp_add_erp(cqr); + if (IS_ERR(erp)) + return erp; + /* inspect sense, determine specific ERP if possible */ if (erp != cqr) { @@ -2707,6 +2714,8 @@ dasd_3990_erp_action(struct dasd_ccw_req * cqr) if (erp == NULL) { /* no matching erp found - set up erp */ erp = dasd_3990_erp_additional_erp(cqr); + if (IS_ERR(erp)) + return erp; } else { /* matching erp found - set all leading erp's to DONE */ erp = dasd_3990_erp_handle_match_erp(cqr, erp); diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c index 148b1dd2407..8c4814258e9 100644 --- a/drivers/s390/block/dasd_alias.c +++ b/drivers/s390/block/dasd_alias.c @@ -8,6 +8,7 @@ #define KMSG_COMPONENT "dasd-eckd" #include <linux/list.h> +#include <linux/slab.h> #include <asm/ebcdic.h> #include "dasd_int.h" #include "dasd_eckd.h" diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index d49766f3b94..eff9c812c5c 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -18,6 +18,7 @@ #include <linux/ctype.h> #include <linux/init.h> #include <linux/module.h> +#include <linux/slab.h> #include <asm/debug.h> #include <asm/uaccess.h> @@ -742,6 +743,7 @@ dasd_ro_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct dasd_devmap *devmap; + struct dasd_device *device; int val; char *endp; @@ -758,12 +760,14 @@ dasd_ro_store(struct device *dev, struct device_attribute *attr, devmap->features |= DASD_FEATURE_READONLY; else devmap->features &= ~DASD_FEATURE_READONLY; - if (devmap->device) - devmap->device->features = devmap->features; - if (devmap->device && devmap->device->block - && devmap->device->block->gdp) - set_disk_ro(devmap->device->block->gdp, val); + device = devmap->device; + if (device) { + device->features = devmap->features; + val = val || test_bit(DASD_FLAG_DEVICE_RO, &device->flags); + } spin_unlock(&dasd_devmap_lock); + if (device && device->block && device->block->gdp) + set_disk_ro(device->block->gdp, val); return count; } diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c index 6e14863f5c7..687f323cdc3 100644 --- a/drivers/s390/block/dasd_diag.c +++ b/drivers/s390/block/dasd_diag.c @@ -145,12 +145,10 @@ dasd_diag_erp(struct dasd_device *device) mdsk_term_io(device); rc = mdsk_init_io(device, device->block->bp_block, 0, NULL); if (rc == 4) { - if (!(device->features & DASD_FEATURE_READONLY)) { + if (!(test_and_set_bit(DASD_FLAG_DEVICE_RO, &device->flags))) pr_warning("%s: The access mode of a DIAG device " "changed to read-only\n", dev_name(&device->cdev->dev)); - device->features |= DASD_FEATURE_READONLY; - } rc = 0; } if (rc) @@ -449,7 +447,7 @@ dasd_diag_check_device(struct dasd_device *device) rc = -EIO; } else { if (rc == 4) - device->features |= DASD_FEATURE_READONLY; + set_bit(DASD_FLAG_DEVICE_RO, &device->flags); pr_info("%s: New DASD with %ld byte/block, total size %ld " "KB%s\n", dev_name(&device->cdev->dev), (unsigned long) block->bp_block, diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 1cca21aafab..0cb23311685 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -1089,6 +1089,7 @@ dasd_eckd_check_characteristics(struct dasd_device *device) struct dasd_eckd_private *private; struct dasd_block *block; int is_known, rc; + int readonly; if (!ccw_device_is_pathgroup(device->cdev)) { dev_warn(&device->cdev->dev, @@ -1182,15 +1183,20 @@ dasd_eckd_check_characteristics(struct dasd_device *device) else private->real_cyl = private->rdc_data.no_cyl; + readonly = dasd_device_is_ro(device); + if (readonly) + set_bit(DASD_FLAG_DEVICE_RO, &device->flags); + dev_info(&device->cdev->dev, "New DASD %04X/%02X (CU %04X/%02X) " - "with %d cylinders, %d heads, %d sectors\n", + "with %d cylinders, %d heads, %d sectors%s\n", private->rdc_data.dev_type, private->rdc_data.dev_model, private->rdc_data.cu_type, private->rdc_data.cu_model.model, private->real_cyl, private->rdc_data.trk_per_cyl, - private->rdc_data.sec_per_trk); + private->rdc_data.sec_per_trk, + readonly ? ", read-only device" : ""); return 0; out_err3: @@ -2839,8 +2845,13 @@ static int dasd_symm_io(struct dasd_device *device, void __user *argp) char *psf_data, *rssd_result; struct dasd_ccw_req *cqr; struct ccw1 *ccw; + char psf0, psf1; int rc; + if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) + return -EACCES; + psf0 = psf1 = 0; + /* Copy parms from caller */ rc = -EFAULT; if (copy_from_user(&usrparm, argp, sizeof(usrparm))) @@ -2869,12 +2880,8 @@ static int dasd_symm_io(struct dasd_device *device, void __user *argp) (void __user *)(unsigned long) usrparm.psf_data, usrparm.psf_data_len)) goto out_free; - - /* sanity check on syscall header */ - if (psf_data[0] != 0x17 && psf_data[1] != 0xce) { - rc = -EINVAL; - goto out_free; - } + psf0 = psf_data[0]; + psf1 = psf_data[1]; /* setup CCWs for PSF + RSSD */ cqr = dasd_smalloc_request(DASD_ECKD_MAGIC, 2 , 0, device); @@ -2925,7 +2932,9 @@ out_free: kfree(rssd_result); kfree(psf_data); out: - DBF_DEV_EVENT(DBF_WARNING, device, "Symmetrix ioctl: rc=%d", rc); + DBF_DEV_EVENT(DBF_WARNING, device, + "Symmetrix ioctl (0x%02x 0x%02x): rc=%d", + (int) psf0, (int) psf1, rc); return rc; } @@ -3146,11 +3155,11 @@ static void dasd_eckd_dump_sense_tcw(struct dasd_device *device, tsb = NULL; sense = NULL; - if (irb->scsw.tm.tcw) + if (irb->scsw.tm.tcw && (irb->scsw.tm.fcxs == 0x01)) tsb = tcw_get_tsb( (struct tcw *)(unsigned long)irb->scsw.tm.tcw); - if (tsb && (irb->scsw.tm.fcxs == 0x01)) { + if (tsb) { len += sprintf(page + len, KERN_ERR PRINTK_HEADER " tsb->length %d\n", tsb->length); len += sprintf(page + len, KERN_ERR PRINTK_HEADER diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c index 1f3e967aaba..dd88803e489 100644 --- a/drivers/s390/block/dasd_eer.c +++ b/drivers/s390/block/dasd_eer.c @@ -19,6 +19,7 @@ #include <linux/mutex.h> #include <linux/smp_lock.h> #include <linux/err.h> +#include <linux/slab.h> #include <asm/uaccess.h> #include <asm/atomic.h> diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c index 0f152444ac7..37282b90eec 100644 --- a/drivers/s390/block/dasd_fba.c +++ b/drivers/s390/block/dasd_fba.c @@ -124,6 +124,7 @@ dasd_fba_check_characteristics(struct dasd_device *device) struct dasd_fba_private *private; struct ccw_device *cdev = device->cdev; int rc; + int readonly; private = (struct dasd_fba_private *) device->private; if (!private) { @@ -162,16 +163,21 @@ dasd_fba_check_characteristics(struct dasd_device *device) return rc; } + readonly = dasd_device_is_ro(device); + if (readonly) + set_bit(DASD_FLAG_DEVICE_RO, &device->flags); + dev_info(&device->cdev->dev, "New FBA DASD %04X/%02X (CU %04X/%02X) with %d MB " - "and %d B/blk\n", + "and %d B/blk%s\n", cdev->id.dev_type, cdev->id.dev_model, cdev->id.cu_type, cdev->id.cu_model, ((private->rdc_data.blk_bdsa * (private->rdc_data.blk_size >> 9)) >> 11), - private->rdc_data.blk_size); + private->rdc_data.blk_size, + readonly ? ", read-only device" : ""); return 0; } diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c index 94f92a1247f..30a1ca3d08b 100644 --- a/drivers/s390/block/dasd_genhd.c +++ b/drivers/s390/block/dasd_genhd.c @@ -70,7 +70,8 @@ int dasd_gendisk_alloc(struct dasd_block *block) } len += sprintf(gdp->disk_name + len, "%c", 'a'+(base->devindex%26)); - if (block->base->features & DASD_FEATURE_READONLY) + if (base->features & DASD_FEATURE_READONLY || + test_bit(DASD_FLAG_DEVICE_RO, &base->flags)) set_disk_ro(gdp, 1); gdp->private_data = block; gdp->queue = block->request_queue; diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h index ed73ce55082..a91d4a97d4f 100644 --- a/drivers/s390/block/dasd_int.h +++ b/drivers/s390/block/dasd_int.h @@ -436,6 +436,10 @@ struct dasd_block { #define DASD_FLAG_OFFLINE 3 /* device is in offline processing */ #define DASD_FLAG_EER_SNSS 4 /* A SNSS is required */ #define DASD_FLAG_EER_IN_USE 5 /* A SNSS request is running */ +#define DASD_FLAG_DEVICE_RO 6 /* The device itself is read-only. Don't + * confuse this with the user specified + * read-only feature. + */ void dasd_put_device_wake(struct dasd_device *); @@ -609,6 +613,9 @@ char *dasd_get_sense(struct irb *); void dasd_device_set_stop_bits(struct dasd_device *, int); void dasd_device_remove_stop_bits(struct dasd_device *, int); +int dasd_device_is_ro(struct dasd_device *); + + /* externals in dasd_devmap.c */ extern int dasd_max_devindex; extern int dasd_probeonly; diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c index 7039d9cf0fb..1557214944f 100644 --- a/drivers/s390/block/dasd_ioctl.c +++ b/drivers/s390/block/dasd_ioctl.c @@ -17,6 +17,7 @@ #include <linux/fs.h> #include <linux/blkpg.h> #include <linux/smp_lock.h> +#include <linux/slab.h> #include <asm/compat.h> #include <asm/ccwdev.h> #include <asm/cmb.h> @@ -199,7 +200,8 @@ dasd_ioctl_format(struct block_device *bdev, void __user *argp) if (!argp) return -EINVAL; - if (block->base->features & DASD_FEATURE_READONLY) + if (block->base->features & DASD_FEATURE_READONLY || + test_bit(DASD_FLAG_DEVICE_RO, &block->base->flags)) return -EROFS; if (copy_from_user(&fdata, argp, sizeof(struct format_data_t))) return -EFAULT; @@ -349,7 +351,8 @@ dasd_ioctl_set_ro(struct block_device *bdev, void __user *argp) return -EINVAL; if (get_user(intval, (int __user *)argp)) return -EFAULT; - + if (!intval && test_bit(DASD_FLAG_DEVICE_RO, &block->base->flags)) + return -EROFS; set_disk_ro(bdev->bd_disk, intval); return dasd_set_feature(block->base->cdev, DASD_FEATURE_READONLY, intval); } diff --git a/drivers/s390/block/dasd_proc.c b/drivers/s390/block/dasd_proc.c index f13a0bdd148..2eb02559280 100644 --- a/drivers/s390/block/dasd_proc.c +++ b/drivers/s390/block/dasd_proc.c @@ -14,6 +14,7 @@ #define KMSG_COMPONENT "dasd" #include <linux/ctype.h> +#include <linux/slab.h> #include <linux/string.h> #include <linux/seq_file.h> #include <linux/vmalloc.h> diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c index 118de392af6..c881a14fa5d 100644 --- a/drivers/s390/block/xpram.c +++ b/drivers/s390/block/xpram.c @@ -33,7 +33,6 @@ #include <linux/ctype.h> /* isdigit, isxdigit */ #include <linux/errno.h> #include <linux/init.h> -#include <linux/slab.h> #include <linux/blkdev.h> #include <linux/blkpg.h> #include <linux/hdreg.h> /* HDIO_GETGEO */ @@ -41,6 +40,7 @@ #include <linux/bio.h> #include <linux/suspend.h> #include <linux/platform_device.h> +#include <linux/gfp.h> #include <asm/uaccess.h> #define XPRAM_NAME "xpram" diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c index 6bca81aea39..bb07577e8fd 100644 --- a/drivers/s390/char/con3270.c +++ b/drivers/s390/char/con3270.c @@ -12,6 +12,7 @@ #include <linux/interrupt.h> #include <linux/list.h> #include <linux/types.h> +#include <linux/slab.h> #include <linux/err.h> #include <linux/reboot.h> diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c index 31c59b0d6df..0eabcca3c92 100644 --- a/drivers/s390/char/fs3270.c +++ b/drivers/s390/char/fs3270.c @@ -12,6 +12,7 @@ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/list.h> +#include <linux/slab.h> #include <linux/types.h> #include <linux/smp_lock.h> diff --git a/drivers/s390/char/keyboard.c b/drivers/s390/char/keyboard.c index cee4d4e4242..cb6bffe7141 100644 --- a/drivers/s390/char/keyboard.c +++ b/drivers/s390/char/keyboard.c @@ -9,6 +9,7 @@ #include <linux/module.h> #include <linux/sched.h> +#include <linux/slab.h> #include <linux/sysrq.h> #include <linux/consolemap.h> diff --git a/drivers/s390/char/monreader.c b/drivers/s390/char/monreader.c index 33e96484d54..2ed3f82e5c3 100644 --- a/drivers/s390/char/monreader.c +++ b/drivers/s390/char/monreader.c @@ -21,6 +21,7 @@ #include <linux/interrupt.h> #include <linux/poll.h> #include <linux/device.h> +#include <linux/slab.h> #include <net/iucv/iucv.h> #include <asm/uaccess.h> #include <asm/ebcdic.h> diff --git a/drivers/s390/char/monwriter.c b/drivers/s390/char/monwriter.c index 668a0579b26..98a49dfda1d 100644 --- a/drivers/s390/char/monwriter.c +++ b/drivers/s390/char/monwriter.c @@ -20,6 +20,7 @@ #include <linux/poll.h> #include <linux/mutex.h> #include <linux/platform_device.h> +#include <linux/slab.h> #include <asm/uaccess.h> #include <asm/ebcdic.h> #include <asm/io.h> diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c index 62ddf5202b7..2a4c566456e 100644 --- a/drivers/s390/char/raw3270.c +++ b/drivers/s390/char/raw3270.c @@ -373,7 +373,7 @@ raw3270_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb) rq->rc = ccw_device_start(rp->cdev, &rq->ccw, (unsigned long) rq, 0, 0); if (rq->rc == 0) - return; /* Sucessfully restarted. */ + return; /* Successfully restarted. */ break; case RAW3270_IO_STOP: if (!rq) diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c index ec88c59842e..f6d72e1f2a3 100644 --- a/drivers/s390/char/sclp.c +++ b/drivers/s390/char/sclp.c @@ -196,7 +196,7 @@ __sclp_start_request(struct sclp_req *req) req->start_count++; if (rc == 0) { - /* Sucessfully started request */ + /* Successfully started request */ req->status = SCLP_REQ_RUNNING; sclp_running_state = sclp_running_state_running; __sclp_set_request_timer(SCLP_RETRY_INTERVAL * HZ, diff --git a/drivers/s390/char/sclp_async.c b/drivers/s390/char/sclp_async.c index 740fe405c39..7ad30e72f86 100644 --- a/drivers/s390/char/sclp_async.c +++ b/drivers/s390/char/sclp_async.c @@ -11,6 +11,7 @@ #include <linux/device.h> #include <linux/stat.h> #include <linux/string.h> +#include <linux/slab.h> #include <linux/ctype.h> #include <linux/kmod.h> #include <linux/err.h> @@ -84,6 +85,7 @@ static int proc_handler_callhome(struct ctl_table *ctl, int write, rc = copy_from_user(buf, buffer, sizeof(buf)); if (rc != 0) return -EFAULT; + buf[sizeof(buf) - 1] = '\0'; if (strict_strtoul(buf, 0, &val) != 0) return -EINVAL; if (val != 0 && val != 1) diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c index b3beab610da..4b60ede07f0 100644 --- a/drivers/s390/char/sclp_cmd.c +++ b/drivers/s390/char/sclp_cmd.c @@ -308,6 +308,13 @@ struct assign_storage_sccb { u16 rn; } __packed; +int arch_get_memory_phys_device(unsigned long start_pfn) +{ + if (!rzm) + return 0; + return PFN_PHYS(start_pfn) >> ilog2(rzm); +} + static unsigned long long rn2addr(u16 rn) { return (unsigned long long) (rn - 1) * rzm; diff --git a/drivers/s390/char/sclp_con.c b/drivers/s390/char/sclp_con.c index ad698d30cb3..ecf45c54f8c 100644 --- a/drivers/s390/char/sclp_con.c +++ b/drivers/s390/char/sclp_con.c @@ -14,6 +14,7 @@ #include <linux/termios.h> #include <linux/err.h> #include <linux/reboot.h> +#include <linux/gfp.h> #include "sclp.h" #include "sclp_rw.h" diff --git a/drivers/s390/char/sclp_tty.c b/drivers/s390/char/sclp_tty.c index 434ba04b130..8258d590505 100644 --- a/drivers/s390/char/sclp_tty.c +++ b/drivers/s390/char/sclp_tty.c @@ -13,10 +13,10 @@ #include <linux/tty.h> #include <linux/tty_driver.h> #include <linux/tty_flip.h> -#include <linux/slab.h> #include <linux/err.h> #include <linux/init.h> #include <linux/interrupt.h> +#include <linux/gfp.h> #include <asm/uaccess.h> #include "ctrlchar.h" diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c index 3796ffdb847..5d706e6c946 100644 --- a/drivers/s390/char/sclp_vt220.c +++ b/drivers/s390/char/sclp_vt220.c @@ -23,6 +23,7 @@ #include <linux/interrupt.h> #include <linux/init.h> #include <linux/reboot.h> +#include <linux/slab.h> #include <asm/uaccess.h> #include "sclp.h" diff --git a/drivers/s390/char/tape_34xx.c b/drivers/s390/char/tape_34xx.c index cb70fa1cf53..c17f35b6136 100644 --- a/drivers/s390/char/tape_34xx.c +++ b/drivers/s390/char/tape_34xx.c @@ -15,6 +15,7 @@ #include <linux/init.h> #include <linux/bio.h> #include <linux/workqueue.h> +#include <linux/slab.h> #define TAPE_DBF_AREA tape_34xx_dbf diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c index 9821c588661..fc993acf99b 100644 --- a/drivers/s390/char/tape_3590.c +++ b/drivers/s390/char/tape_3590.c @@ -12,6 +12,7 @@ #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #include <linux/module.h> +#include <linux/slab.h> #include <linux/init.h> #include <linux/bio.h> #include <asm/ebcdic.h> diff --git a/drivers/s390/char/tape_class.c b/drivers/s390/char/tape_class.c index b2864e3edb6..55343df61ed 100644 --- a/drivers/s390/char/tape_class.c +++ b/drivers/s390/char/tape_class.c @@ -11,6 +11,8 @@ #define KMSG_COMPONENT "tape" #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt +#include <linux/slab.h> + #include "tape_class.h" MODULE_AUTHOR("Stefan Bader <shbader@de.ibm.com>"); diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c index 81b094e480e..29c2d73d719 100644 --- a/drivers/s390/char/tape_core.c +++ b/drivers/s390/char/tape_core.c @@ -20,6 +20,7 @@ #include <linux/spinlock.h> // for locks #include <linux/vmalloc.h> #include <linux/list.h> +#include <linux/slab.h> #include <asm/types.h> // for variable types diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c index 921dcda7767..5bb59d36a6d 100644 --- a/drivers/s390/char/vmcp.c +++ b/drivers/s390/char/vmcp.c @@ -19,6 +19,7 @@ #include <linux/kernel.h> #include <linux/miscdevice.h> #include <linux/module.h> +#include <linux/slab.h> #include <asm/compat.h> #include <asm/cpcmd.h> #include <asm/debug.h> diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c index 7dfa5412d5a..e40a1b89286 100644 --- a/drivers/s390/char/vmlogrdr.c +++ b/drivers/s390/char/vmlogrdr.c @@ -16,6 +16,7 @@ #include <linux/module.h> #include <linux/init.h> +#include <linux/slab.h> #include <linux/errno.h> #include <linux/types.h> #include <linux/interrupt.h> diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c index cc56fc708ba..1de672f2103 100644 --- a/drivers/s390/char/vmur.c +++ b/drivers/s390/char/vmur.c @@ -12,6 +12,7 @@ #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #include <linux/cdev.h> +#include <linux/slab.h> #include <linux/smp_lock.h> #include <asm/uaccess.h> diff --git a/drivers/s390/char/vmwatchdog.c b/drivers/s390/char/vmwatchdog.c index c974058e48d..e13508c98b1 100644 --- a/drivers/s390/char/vmwatchdog.c +++ b/drivers/s390/char/vmwatchdog.c @@ -17,6 +17,7 @@ #include <linux/miscdevice.h> #include <linux/module.h> #include <linux/moduleparam.h> +#include <linux/slab.h> #include <linux/suspend.h> #include <linux/watchdog.h> diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c index 3438658b66b..7217966f7d3 100644 --- a/drivers/s390/char/zcore.c +++ b/drivers/s390/char/zcore.c @@ -13,6 +13,7 @@ #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #include <linux/init.h> +#include <linux/slab.h> #include <linux/miscdevice.h> #include <linux/debugfs.h> #include <asm/asm-offsets.h> @@ -141,33 +142,6 @@ static int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count) return memcpy_hsa(dest, src, count, TO_KERNEL); } -static int memcpy_real(void *dest, unsigned long src, size_t count) -{ - unsigned long flags; - int rc = -EFAULT; - register unsigned long _dest asm("2") = (unsigned long) dest; - register unsigned long _len1 asm("3") = (unsigned long) count; - register unsigned long _src asm("4") = src; - register unsigned long _len2 asm("5") = (unsigned long) count; - - if (count == 0) - return 0; - flags = __raw_local_irq_stnsm(0xf8UL); /* switch to real mode */ - asm volatile ( - "0: mvcle %1,%2,0x0\n" - "1: jo 0b\n" - " lhi %0,0x0\n" - "2:\n" - EX_TABLE(1b,2b) - : "+d" (rc), "+d" (_dest), "+d" (_src), "+d" (_len1), - "+d" (_len2), "=m" (*((long*)dest)) - : "m" (*((long*)src)) - : "cc", "memory"); - __raw_local_irq_ssm(flags); - - return rc; -} - static int memcpy_real_user(void __user *dest, unsigned long src, size_t count) { static char buf[4096]; @@ -175,7 +149,7 @@ static int memcpy_real_user(void __user *dest, unsigned long src, size_t count) while (offs < count) { size = min(sizeof(buf), count - offs); - if (memcpy_real(buf, src + offs, size)) + if (memcpy_real(buf, (void *) src + offs, size)) return -EFAULT; if (copy_to_user(dest + offs, buf, size)) return -EFAULT; @@ -663,12 +637,8 @@ static int __init zcore_reipl_init(void) if (ipib_info.ipib < ZFCPDUMP_HSA_SIZE) rc = memcpy_hsa_kernel(ipl_block, ipib_info.ipib, PAGE_SIZE); else - rc = memcpy_real(ipl_block, ipib_info.ipib, PAGE_SIZE); - if (rc) { - free_page((unsigned long) ipl_block); - return rc; - } - if (csum_partial(ipl_block, ipl_block->hdr.len, 0) != + rc = memcpy_real(ipl_block, (void *) ipib_info.ipib, PAGE_SIZE); + if (rc || csum_partial(ipl_block, ipl_block->hdr.len, 0) != ipib_info.checksum) { TRACE("Checksum does not match\n"); free_page((unsigned long) ipl_block); diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c index 7eab9ab9f40..13cb60162e4 100644 --- a/drivers/s390/cio/blacklist.c +++ b/drivers/s390/cio/blacklist.c @@ -14,7 +14,6 @@ #include <linux/init.h> #include <linux/vmalloc.h> -#include <linux/slab.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> #include <linux/ctype.h> diff --git a/drivers/s390/cio/chp.c b/drivers/s390/cio/chp.c index c268a2e5b7c..1d16189f2f2 100644 --- a/drivers/s390/cio/chp.c +++ b/drivers/s390/cio/chp.c @@ -15,6 +15,7 @@ #include <linux/wait.h> #include <linux/mutex.h> #include <linux/errno.h> +#include <linux/slab.h> #include <asm/chpid.h> #include <asm/sclp.h> #include <asm/crw.h> diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 4038f5b4f14..ce7cb87479f 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -29,6 +29,7 @@ #include "chsc.h" static void *sei_page; +static DEFINE_SPINLOCK(sda_lock); /** * chsc_error_from_response() - convert a chsc response to an error @@ -832,11 +833,10 @@ void __init chsc_free_sei_area(void) kfree(sei_page); } -int __init -chsc_enable_facility(int operation_code) +int chsc_enable_facility(int operation_code) { int ret; - struct { + static struct { struct chsc_header request; u8 reserved1:4; u8 format:4; @@ -849,33 +849,32 @@ chsc_enable_facility(int operation_code) u32 reserved5:4; u32 format2:4; u32 reserved6:24; - } __attribute__ ((packed)) *sda_area; + } __attribute__ ((packed, aligned(4096))) sda_area; - sda_area = (void *)get_zeroed_page(GFP_KERNEL|GFP_DMA); - if (!sda_area) - return -ENOMEM; - sda_area->request.length = 0x0400; - sda_area->request.code = 0x0031; - sda_area->operation_code = operation_code; + spin_lock(&sda_lock); + memset(&sda_area, 0, sizeof(sda_area)); + sda_area.request.length = 0x0400; + sda_area.request.code = 0x0031; + sda_area.operation_code = operation_code; - ret = chsc(sda_area); + ret = chsc(&sda_area); if (ret > 0) { ret = (ret == 3) ? -ENODEV : -EBUSY; goto out; } - switch (sda_area->response.code) { + switch (sda_area.response.code) { case 0x0101: ret = -EOPNOTSUPP; break; default: - ret = chsc_error_from_response(sda_area->response.code); + ret = chsc_error_from_response(sda_area.response.code); } if (ret != 0) CIO_CRW_EVENT(2, "chsc: sda (oc=%x) failed (rc=%04x)\n", - operation_code, sda_area->response.code); + operation_code, sda_area.response.code); out: - free_page((unsigned long)sda_area); + spin_unlock(&sda_lock); return ret; } diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c index 852612f5dba..3b6f4adc509 100644 --- a/drivers/s390/cio/chsc_sch.c +++ b/drivers/s390/cio/chsc_sch.c @@ -7,6 +7,7 @@ * */ +#include <linux/slab.h> #include <linux/device.h> #include <linux/module.h> #include <linux/uaccess.h> @@ -123,7 +124,7 @@ static int chsc_subchannel_prepare(struct subchannel *sch) * since we don't have a way to clear the subchannel and * cannot disable it with a request running. */ - cc = stsch(sch->schid, &schib); + cc = stsch_err(sch->schid, &schib); if (!cc && scsw_stctl(&schib.scsw)) return -EAGAIN; return 0; diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index f736cdcf08a..5feea1a371e 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -361,7 +361,7 @@ int cio_commit_config(struct subchannel *sch) struct schib schib; int ccode, retry, ret = 0; - if (stsch(sch->schid, &schib) || !css_sch_is_valid(&schib)) + if (stsch_err(sch->schid, &schib) || !css_sch_is_valid(&schib)) return -ENODEV; for (retry = 0; retry < 5; retry++) { @@ -372,7 +372,7 @@ int cio_commit_config(struct subchannel *sch) return ccode; switch (ccode) { case 0: /* successful */ - if (stsch(sch->schid, &schib) || + if (stsch_err(sch->schid, &schib) || !css_sch_is_valid(&schib)) return -ENODEV; if (cio_check_config(sch, &schib)) { @@ -404,7 +404,7 @@ int cio_update_schib(struct subchannel *sch) { struct schib schib; - if (stsch(sch->schid, &schib) || !css_sch_is_valid(&schib)) + if (stsch_err(sch->schid, &schib) || !css_sch_is_valid(&schib)) return -ENODEV; memcpy(&sch->schib, &schib, sizeof(schib)); @@ -771,7 +771,7 @@ cio_get_console_sch_no(void) if (console_irq != -1) { /* VM provided us with the irq number of the console. */ schid.sch_no = console_irq; - if (stsch(schid, &console_subchannel.schib) != 0 || + if (stsch_err(schid, &console_subchannel.schib) != 0 || (console_subchannel.schib.pmcw.st != SUBCHANNEL_TYPE_IO) || !console_subchannel.schib.pmcw.dnv) return -1; @@ -863,10 +863,10 @@ __disable_subchannel_easy(struct subchannel_id schid, struct schib *schib) cc = 0; for (retry=0;retry<3;retry++) { schib->pmcw.ena = 0; - cc = msch(schid, schib); + cc = msch_err(schid, schib); if (cc) return (cc==3?-ENODEV:-EBUSY); - if (stsch(schid, schib) || !css_sch_is_valid(schib)) + if (stsch_err(schid, schib) || !css_sch_is_valid(schib)) return -ENODEV; if (!schib->pmcw.ena) return 0; @@ -913,7 +913,7 @@ static int stsch_reset(struct subchannel_id schid, struct schib *addr) pgm_check_occured = 0; s390_base_pgm_handler_fn = cio_reset_pgm_check_handler; - rc = stsch(schid, addr); + rc = stsch_err(schid, addr); s390_base_pgm_handler_fn = NULL; /* The program check handler could have changed pgm_check_occured. */ @@ -950,7 +950,7 @@ static int __shutdown_subchannel_easy(struct subchannel_id schid, void *data) /* No default clear strategy */ break; } - stsch(schid, &schib); + stsch_err(schid, &schib); __disable_subchannel_easy(schid, &schib); } out: @@ -1086,7 +1086,7 @@ int __init cio_get_iplinfo(struct cio_iplinfo *iplinfo) schid = *(struct subchannel_id *)&S390_lowcore.subchannel_id; if (!schid.one) return -ENODEV; - if (stsch(schid, &schib)) + if (stsch_err(schid, &schib)) return -ENODEV; if (schib.pmcw.st != SUBCHANNEL_TYPE_IO) return -ENODEV; diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index 2769da54f2b..511649115bd 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -870,15 +870,10 @@ static int __init css_bus_init(void) /* Try to enable MSS. */ ret = chsc_enable_facility(CHSC_SDA_OC_MSS); - switch (ret) { - case 0: /* Success. */ - max_ssid = __MAX_SSID; - break; - case -ENOMEM: - goto out; - default: + if (ret) max_ssid = 0; - } + else /* Success. */ + max_ssid = __MAX_SSID; ret = slow_subchannel_init(); if (ret) @@ -1048,6 +1043,11 @@ static int __init channel_subsystem_init_sync(void) } subsys_initcall_sync(channel_subsystem_init_sync); +void channel_subsystem_reinit(void) +{ + chsc_enable_facility(CHSC_SDA_OC_MSS); +} + #ifdef CONFIG_PROC_FS static ssize_t cio_settle_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index c6abb75c461..6d229f3523a 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -764,7 +764,7 @@ static void sch_create_and_recog_new_device(struct subchannel *sch) static void io_subchannel_register(struct ccw_device *cdev) { struct subchannel *sch; - int ret; + int ret, adjust_init_count = 1; unsigned long flags; sch = to_subchannel(cdev->dev.parent); @@ -793,6 +793,7 @@ static void io_subchannel_register(struct ccw_device *cdev) cdev->private->dev_id.ssid, cdev->private->dev_id.devno); } + adjust_init_count = 0; goto out; } /* @@ -818,7 +819,7 @@ out: cdev->private->flags.recog_done = 1; wake_up(&cdev->private->wait_q); out_err: - if (atomic_dec_and_test(&ccw_device_init_count)) + if (adjust_init_count && atomic_dec_and_test(&ccw_device_init_count)) wake_up(&ccw_device_init_wq); } diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index c56ab94612f..c9b852647f0 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -45,7 +45,7 @@ static void ccw_timeout_log(struct ccw_device *cdev) sch = to_subchannel(cdev->dev.parent); private = to_io_private(sch); orb = &private->orb; - cc = stsch(sch->schid, &schib); + cc = stsch_err(sch->schid, &schib); printk(KERN_WARNING "cio: ccw device timeout occurred at %llx, " "device information:\n", get_clock()); diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c index c94eb2a0fa2..6ce83f56d53 100644 --- a/drivers/s390/cio/qdio_debug.c +++ b/drivers/s390/cio/qdio_debug.c @@ -33,7 +33,6 @@ void qdio_allocate_dbf(struct qdio_initialize *init_data, DBF_HEX(&init_data->input_handler, sizeof(void *)); DBF_HEX(&init_data->output_handler, sizeof(void *)); DBF_HEX(&init_data->int_parm, sizeof(long)); - DBF_HEX(&init_data->flags, sizeof(long)); DBF_HEX(&init_data->input_sbal_addr_array, sizeof(void *)); DBF_HEX(&init_data->output_sbal_addr_array, sizeof(void *)); DBF_EVENT("irq:%8lx", (unsigned long)irq_ptr); diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 232ef047ba3..88be7b9ea6e 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -13,6 +13,7 @@ #include <linux/kernel.h> #include <linux/timer.h> #include <linux/delay.h> +#include <linux/gfp.h> #include <asm/atomic.h> #include <asm/debug.h> #include <asm/qdio.h> @@ -588,10 +589,11 @@ static void qdio_kick_handler(struct qdio_q *q) if (q->is_input_q) { qperf_inc(q, inbound_handler); DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "kih s:%02x c:%02x", start, count); - } else + } else { qperf_inc(q, outbound_handler); DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "koh: s:%02x c:%02x", start, count); + } q->handler(q->irq_ptr->cdev, q->qdio_error, q->nr, start, count, q->irq_ptr->int_parm); diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c index 9942c1031b2..ce5f8910ff8 100644 --- a/drivers/s390/cio/qdio_thinint.c +++ b/drivers/s390/cio/qdio_thinint.c @@ -7,6 +7,7 @@ * Jan Glauber <jang@linux.vnet.ibm.com> */ #include <linux/io.h> +#include <linux/slab.h> #include <asm/atomic.h> #include <asm/debug.h> #include <asm/qdio.h> diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 20836eff88c..91c6028d7b7 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -33,6 +33,7 @@ #include <linux/err.h> #include <linux/interrupt.h> #include <linux/workqueue.h> +#include <linux/slab.h> #include <linux/notifier.h> #include <linux/kthread.h> #include <linux/mutex.h> diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c index ba50fe02e57..304caf54997 100644 --- a/drivers/s390/crypto/zcrypt_api.c +++ b/drivers/s390/crypto/zcrypt_api.c @@ -36,6 +36,7 @@ #include <linux/seq_file.h> #include <linux/compat.h> #include <linux/smp_lock.h> +#include <linux/slab.h> #include <asm/atomic.h> #include <asm/uaccess.h> #include <linux/hw_random.h> diff --git a/drivers/s390/crypto/zcrypt_cex2a.c b/drivers/s390/crypto/zcrypt_cex2a.c index c6fb0aa8950..9c409efa1ec 100644 --- a/drivers/s390/crypto/zcrypt_cex2a.c +++ b/drivers/s390/crypto/zcrypt_cex2a.c @@ -27,6 +27,7 @@ */ #include <linux/module.h> +#include <linux/slab.h> #include <linux/init.h> #include <linux/err.h> #include <asm/atomic.h> diff --git a/drivers/s390/crypto/zcrypt_pcica.c b/drivers/s390/crypto/zcrypt_pcica.c index e78df3671ca..09e934b295a 100644 --- a/drivers/s390/crypto/zcrypt_pcica.c +++ b/drivers/s390/crypto/zcrypt_pcica.c @@ -27,6 +27,7 @@ */ #include <linux/module.h> +#include <linux/slab.h> #include <linux/init.h> #include <linux/err.h> #include <asm/atomic.h> diff --git a/drivers/s390/crypto/zcrypt_pcicc.c b/drivers/s390/crypto/zcrypt_pcicc.c index 142f72a2ca5..9dec5c77cff 100644 --- a/drivers/s390/crypto/zcrypt_pcicc.c +++ b/drivers/s390/crypto/zcrypt_pcicc.c @@ -28,6 +28,7 @@ #include <linux/module.h> #include <linux/init.h> +#include <linux/gfp.h> #include <linux/err.h> #include <asm/atomic.h> #include <asm/uaccess.h> diff --git a/drivers/s390/crypto/zcrypt_pcixcc.c b/drivers/s390/crypto/zcrypt_pcixcc.c index 68f3e6204db..510fab4577d 100644 --- a/drivers/s390/crypto/zcrypt_pcixcc.c +++ b/drivers/s390/crypto/zcrypt_pcixcc.c @@ -30,6 +30,7 @@ #include <linux/init.h> #include <linux/err.h> #include <linux/delay.h> +#include <linux/slab.h> #include <asm/atomic.h> #include <asm/uaccess.h> diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c index b2fc4fd63f7..4e298bc8949 100644 --- a/drivers/s390/kvm/kvm_virtio.c +++ b/drivers/s390/kvm/kvm_virtio.c @@ -15,6 +15,7 @@ #include <linux/err.h> #include <linux/virtio.h> #include <linux/virtio_config.h> +#include <linux/slab.h> #include <linux/virtio_console.h> #include <linux/interrupt.h> #include <linux/virtio_ring.h> diff --git a/drivers/s390/net/Kconfig b/drivers/s390/net/Kconfig index cb909a5b504..977bb4d4ed1 100644 --- a/drivers/s390/net/Kconfig +++ b/drivers/s390/net/Kconfig @@ -43,6 +43,16 @@ config SMSGIUCV Select this option if you want to be able to receive SMSG messages from other VM guest systems. +config SMSGIUCV_EVENT + tristate "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" depends on CCW && NETDEVICES diff --git a/drivers/s390/net/Makefile b/drivers/s390/net/Makefile index 6cab5a62f99..4dfe8c1092d 100644 --- a/drivers/s390/net/Makefile +++ b/drivers/s390/net/Makefile @@ -6,6 +6,7 @@ ctcm-y += ctcm_main.o ctcm_fsms.o ctcm_mpc.o ctcm_sysfs.o ctcm_dbug.o obj-$(CONFIG_CTCM) += ctcm.o fsm.o obj-$(CONFIG_NETIUCV) += netiucv.o fsm.o obj-$(CONFIG_SMSGIUCV) += smsgiucv.o +obj-$(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 diff --git a/drivers/s390/net/ctcm_dbug.c b/drivers/s390/net/ctcm_dbug.c index 1ca58f15347..d962fd741a2 100644 --- a/drivers/s390/net/ctcm_dbug.c +++ b/drivers/s390/net/ctcm_dbug.c @@ -10,7 +10,6 @@ #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> diff --git a/drivers/s390/net/ctcm_sysfs.c b/drivers/s390/net/ctcm_sysfs.c index 738ad26c74a..2b24550e865 100644 --- a/drivers/s390/net/ctcm_sysfs.c +++ b/drivers/s390/net/ctcm_sysfs.c @@ -14,6 +14,7 @@ #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #include <linux/sysfs.h> +#include <linux/slab.h> #include "ctcm_main.h" /* diff --git a/drivers/s390/net/fsm.c b/drivers/s390/net/fsm.c index cae48cbc5e9..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)"); diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c index f6cc46dc050..9b19ea13b4d 100644 --- a/drivers/s390/net/lcs.c +++ b/drivers/s390/net/lcs.c @@ -37,6 +37,7 @@ #include <linux/igmp.h> #include <linux/delay.h> #include <linux/kthread.h> +#include <linux/slab.h> #include <net/arp.h> #include <net/ip.h> diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index b232693378c..fcd005aad98 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -649,6 +649,7 @@ struct qeth_card_options { int performance_stats; int rx_sg_cb; enum qeth_ipa_isolation_modes isolation; + int sniffer; }; /* @@ -737,6 +738,7 @@ struct qeth_card { struct qeth_discipline discipline; atomic_t force_alloc_skb; struct service_level qeth_service_level; + struct qdio_ssqd_desc ssqd; }; struct qeth_card_list_struct { @@ -761,7 +763,8 @@ static inline int qeth_get_micros(void) static inline int qeth_get_ip_version(struct sk_buff *skb) { - switch (skb->protocol) { + struct ethhdr *ehdr = (struct ethhdr *)skb->data; + switch (ehdr->h_proto) { case ETH_P_IPV6: return 6; case ETH_P_IP: @@ -811,7 +814,8 @@ 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 *, diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index d34804d5ece..3ba738b2e27 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -20,6 +20,7 @@ #include <linux/tcp.h> #include <linux/mii.h> #include <linux/kthread.h> +#include <linux/slab.h> #include <asm/ebcdic.h> #include <asm/io.h> @@ -269,6 +270,7 @@ 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); static int qeth_issue_next_read(struct qeth_card *card) { @@ -350,8 +352,10 @@ static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card, 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; @@ -534,7 +538,8 @@ static void qeth_send_control_data_cb(struct qeth_channel *channel, dev_err(&card->gdev->dev, "The qeth device is not configured " "for the OSI layer required by z/VM\n"); - qeth_schedule_recovery(card); + else + qeth_schedule_recovery(card); goto out; } @@ -1100,11 +1105,6 @@ static int qeth_setup_card(struct qeth_card *card) 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); @@ -1115,8 +1115,6 @@ static int qeth_setup_card(struct qeth_card *card) card->ipato.enabled = 0; card->ipato.invert4 = 0; card->ipato.invert6 = 0; - if (card->info.type == QETH_CARD_TYPE_IQD) - card->options.checksum_type = NO_CHECKSUMMING; /* init QDIO stuff */ qeth_init_qdio_info(card); return 0; @@ -1138,21 +1136,30 @@ 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 = kmalloc(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) @@ -1355,26 +1362,29 @@ 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) { - QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n", - dev_name(&card->gdev->dev), 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] == 0xF5) { + card->info.blkt.time_total = 250; + card->info.blkt.inter_packet = 5; + card->info.blkt.inter_packet_jumbo = 15; + } else { + card->info.blkt.time_total = 0; + card->info.blkt.inter_packet = 0; + card->info.blkt.inter_packet_jumbo = 0; + } } static void qeth_init_tokens(struct qeth_card *card) @@ -2573,8 +2583,8 @@ 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) +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); @@ -2584,7 +2594,11 @@ int qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error, QETH_DBF_TEXT_(QERR, 2, " F14=%02X", buf->element[14].flags & 0xff); QETH_DBF_TEXT_(QERR, 2, " qerr=%X", qdio_error); - return 1; + if ((buf->element[15].flags & 0xff) == 0x12) { + card->stats.rx_dropped++; + return 0; + } else + return 1; } return 0; } @@ -2667,7 +2681,7 @@ static int qeth_handle_send_error(struct qeth_card *card, qdio_err = 1; } } - qeth_check_qdio_errors(buffer->buffer, qdio_err, "qouterr"); + qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr"); if (!qdio_err) return QETH_SEND_ERROR_NONE; @@ -3509,6 +3523,7 @@ void qeth_tx_timeout(struct net_device *dev) { struct qeth_card *card; + QETH_DBF_TEXT(TRACE, 4, "txtimeo"); card = dev->ml_priv; card->stats.tx_errors++; qeth_schedule_recovery(card); @@ -3790,9 +3805,6 @@ static int qeth_qdio_establish(struct qeth_card *card) init_data.input_handler = card->discipline.input_handler; init_data.output_handler = card->discipline.output_handler; 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; @@ -3847,9 +3859,7 @@ static int qeth_core_driver_group(const char *buf, struct device *root_dev, int qeth_core_hardsetup_card(struct qeth_card *card) { - struct qdio_ssqd_desc *ssqd; int retries = 0; - int mpno = 0; int rc; QETH_DBF_TEXT(SETUP, 2, "hrdsetup"); @@ -3882,31 +3892,6 @@ retriable: else goto retry; } - - rc = qeth_get_unitaddr(card); - if (rc) { - QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); - return rc; - } - - ssqd = kmalloc(sizeof(struct qdio_ssqd_desc), GFP_KERNEL); - if (!ssqd) { - rc = -ENOMEM; - goto out; - } - rc = qdio_get_ssqd_desc(CARD_DDEV(card), ssqd); - if (rc == 0) - mpno = ssqd->pcnt; - kfree(ssqd); - - 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_init_tokens(card); qeth_init_func_level(card); rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb); @@ -3990,7 +3975,7 @@ struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, struct qdio_buffer_element *element = *__element; int offset = *__offset; struct sk_buff *skb = NULL; - int skb_len; + int skb_len = 0; void *data_ptr; int data_len; int headroom = 0; @@ -4009,20 +3994,24 @@ 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; + break; + case QETH_HEADER_TYPE_OSN: + skb_len = (*hdr)->hdr.osn.pdu_length; + headroom = sizeof(struct qeth_hdr); + break; + default: + break; } if (!skb_len) @@ -4177,6 +4166,41 @@ void qeth_core_free_discipline(struct qeth_card *card) card->discipline.ccwgdriver = NULL; } +static void qeth_determine_capabilities(struct qeth_card *card) +{ + int rc; + int length; + char *prcd; + + QETH_DBF_TEXT(SETUP, 2, "detcapab"); + rc = ccw_device_set_online(CARD_DDEV(card)); + 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); + qeth_configure_blkt_default(card, prcd); + kfree(prcd); + + rc = qdio_get_ssqd_desc(CARD_DDEV(card), &card->ssqd); + if (rc) + QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); + +out_offline: + ccw_device_set_offline(CARD_DDEV(card)); +out: + return; +} + static int qeth_core_probe_device(struct ccwgroup_device *gdev) { struct qeth_card *card; @@ -4242,6 +4266,8 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev) 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_card: diff --git a/drivers/s390/net/qeth_core_mpc.h b/drivers/s390/net/qeth_core_mpc.h index 1ba51152f66..104a3351e02 100644 --- a/drivers/s390/net/qeth_core_mpc.h +++ b/drivers/s390/net/qeth_core_mpc.h @@ -156,6 +156,8 @@ 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, @@ -196,6 +198,11 @@ enum qeth_ipa_return_codes { IPA_RC_INVALID_IP_VERSION2 = 0xf001, 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 { @@ -246,6 +253,7 @@ enum qeth_ipa_setadp_cmd { 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, }; enum qeth_ipa_mac_ops { @@ -424,6 +432,40 @@ 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, +}; + +struct qeth_ipacmd_diagass { + __u32 host_tod2; + __u32:32; + __u16 subcmd_len; + __u16:16; + __u32 subcmd; + __u8 type; + __u8 action; + __u16 options; + __u32:32; +} __attribute__ ((packed)); + /* Header for each IPA command */ struct qeth_ipacmd_hdr { __u8 command; @@ -452,6 +494,7 @@ 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; } data; } __attribute__ ((packed)); @@ -469,7 +512,6 @@ 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); diff --git a/drivers/s390/net/qeth_core_sys.c b/drivers/s390/net/qeth_core_sys.c index 9ff2b36fdc4..25dfd5abd19 100644 --- a/drivers/s390/net/qeth_core_sys.c +++ b/drivers/s390/net/qeth_core_sys.c @@ -8,6 +8,9 @@ * 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> @@ -118,7 +121,7 @@ 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; if (!card) return -EINVAL; @@ -128,9 +131,11 @@ static ssize_t qeth_dev_portno_store(struct device *dev, return -EPERM; portno = simple_strtoul(buf, &tmp, 16); - if (portno > QETH_MAX_PORTNO) { + if (portno > QETH_MAX_PORTNO) + return -EINVAL; + limit = (card->ssqd.pcnt ? card->ssqd.pcnt - 1 : card->ssqd.pcnt); + if (portno > limit) return -EINVAL; - } card->info.portno = portno; return count; @@ -537,7 +542,7 @@ 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); } @@ -559,7 +564,7 @@ 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, @@ -580,7 +585,7 @@ 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, diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 0b763396d5d..6a801dc3bf8 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -16,6 +16,7 @@ #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> @@ -486,22 +487,14 @@ static int qeth_l2_send_setmac_cb(struct qeth_card *card, case IPA_RC_L2_DUP_MAC: case IPA_RC_L2_DUP_LAYER3_MAC: dev_warn(&card->gdev->dev, - "MAC address " - "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x " - "already exists\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]); + "MAC address %pM already exists\n", + card->dev->dev_addr); 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 " - "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x " - "is not authorized\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]); + "MAC address %pM is not authorized\n", + card->dev->dev_addr); break; default: break; @@ -512,12 +505,8 @@ static int qeth_l2_send_setmac_cb(struct qeth_card *card, memcpy(card->dev->dev_addr, cmd->data.setdelmac.mac, OSA_ADDR_LEN); dev_info(&card->gdev->dev, - "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); + "MAC address %pM successfully registered on device %s\n", + card->dev->dev_addr, card->dev->name); } return 0; } @@ -634,7 +623,7 @@ static void qeth_l2_set_multicast_list(struct net_device *dev) for (dm = dev->mc_list; dm; dm = dm->next) qeth_l2_add_mc(card, dm->da_addr, 0); - list_for_each_entry(ha, &dev->uc.list, list) + netdev_for_each_uc_addr(ha, dev) qeth_l2_add_mc(card, ha->addr, 1); spin_unlock_bh(&card->mclock); @@ -781,7 +770,8 @@ static void qeth_l2_qdio_input_handler(struct ccw_device *ccwdev, 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_check_qdio_errors(card, 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); @@ -938,7 +928,6 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) QETH_DBF_TEXT(SETUP, 2, "setonlin"); QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); - qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1); recover_flag = card->state; rc = qeth_core_hardsetup_card(card); if (rc) { @@ -1083,11 +1072,9 @@ static int qeth_l2_recover(void *ptr) dev_info(&card->gdev->dev, "Device successfully recovered!\n"); else { - if (card->dev) { - rtnl_lock(); - dev_close(card->dev); - rtnl_unlock(); - } + rtnl_lock(); + dev_close(card->dev); + rtnl_unlock(); dev_warn(&card->gdev->dev, "The qeth device driver " "failed to recover an error on the device\n"); } @@ -1141,11 +1128,9 @@ static int qeth_l2_pm_resume(struct ccwgroup_device *gdev) if (card->state == CARD_STATE_RECOVER) { rc = __qeth_l2_set_online(card->gdev, 1); if (rc) { - if (card->dev) { - rtnl_lock(); - dev_close(card->dev); - rtnl_unlock(); - } + rtnl_lock(); + dev_close(card->dev); + rtnl_unlock(); } } else rc = __qeth_l2_set_online(card->gdev, 0); diff --git a/drivers/s390/net/qeth_l3.h b/drivers/s390/net/qeth_l3.h index 321988fa9f7..8447d233d0b 100644 --- a/drivers/s390/net/qeth_l3.h +++ b/drivers/s390/net/qeth_l3.h @@ -13,6 +13,8 @@ #include "qeth_core.h" +#define QETH_SNIFF_AVAIL 0x0008 + struct qeth_ipaddr { struct list_head entry; enum qeth_ip_types type; diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index fd1b6ed3721..fc6ca1da8b9 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -22,6 +22,7 @@ #include <linux/ipv6.h> #include <linux/inetdevice.h> #include <linux/igmp.h> +#include <linux/slab.h> #include <net/ip.h> #include <net/arp.h> @@ -242,6 +243,8 @@ 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)) @@ -457,6 +460,8 @@ static void qeth_l3_set_ip_addr_list(struct qeth_card *card) QETH_DBF_TEXT(TRACE, 2, "sdiplist"); QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *)); + if (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); @@ -495,7 +500,7 @@ 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); @@ -513,6 +518,8 @@ static void qeth_l3_clear_ip_list(struct qeth_card *card, int clean, unsigned long flags; QETH_DBF_TEXT(TRACE, 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) { @@ -1674,6 +1681,80 @@ 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_DBF_TEXT_(TRACE, 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) { @@ -1951,7 +2032,10 @@ 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); } @@ -2007,7 +2091,6 @@ static void qeth_l3_process_inbound_buffer(struct qeth_card *card, int offset; __u16 vlan_tag = 0; unsigned int len; - /* get first element of current buffer */ element = (struct qdio_buffer_element *)&buf->buffer->element[0]; offset = 0; @@ -2026,7 +2109,7 @@ static void qeth_l3_process_inbound_buffer(struct qeth_card *card, case QETH_HEADER_TYPE_LAYER3: vlan_tag = qeth_l3_rebuild_skb(card, skb, hdr); len = skb->len; - if (vlan_tag) + if (vlan_tag && !card->options.sniffer) if (card->vlangrp) vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag); @@ -2037,6 +2120,16 @@ static void qeth_l3_process_inbound_buffer(struct qeth_card *card, else netif_rx(skb); break; + case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */ + 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; + len = skb->len; + netif_receive_skb(skb); + break; default: dev_kfree_skb_any(skb); QETH_DBF_TEXT(TRACE, 3, "inbunkno"); @@ -2118,17 +2211,18 @@ 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 (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)) { if (recovery_mode) qeth_l3_stop(card->dev); else { - if (card->dev) { - rtnl_lock(); - dev_close(card->dev); - rtnl_unlock(); - } + rtnl_lock(); + dev_close(card->dev); + rtnl_unlock(); } if (!card->use_hard_stop) { rc = qeth_send_stoplan(card); @@ -2162,6 +2256,36 @@ static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode) 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_DBF_TEXT(TRACE, 3, "+promisc"); + qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE); + } else { + QETH_DBF_TEXT(TRACE, 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; @@ -2170,15 +2294,17 @@ static void qeth_l3_set_multicast_list(struct net_device *dev) if (qeth_threads_running(card, QETH_RECOVER_THREAD) && (card->state != CARD_STATE_UP)) return; - qeth_l3_delete_mc_addresses(card); - qeth_l3_add_multicast_ipv4(card); + 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) @@ -2777,9 +2903,8 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) 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) && (!ipv)) || + card->options.sniffer) goto tx_drop; if ((card->state != CARD_STATE_UP) || !card->lan_online) { @@ -2825,14 +2950,14 @@ 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 (ipv == 4) { if (card->dev->type == ARPHRD_IEEE802_TR) skb_pull(new_skb, TR_HLEN); else skb_pull(new_skb, ETH_HLEN); } - if (new_skb->protocol == ETH_P_IPV6 && card->vlangrp && + if (ipv == 6 && card->vlangrp && vlan_tx_tag_present(new_skb)) { skb_push(new_skb, VLAN_HLEN); skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4); @@ -3155,7 +3280,7 @@ static void qeth_l3_qdio_input_handler(struct ccw_device *ccwdev, index = i % QDIO_MAX_BUFFERS_PER_Q; buffer = &card->qdio.in_q->bufs[index]; if (!(qdio_err && - qeth_check_qdio_errors(buffer->buffer, + qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qinerr"))) qeth_l3_process_inbound_buffer(card, buffer, index); /* clear buffer and give back to hardware */ @@ -3214,8 +3339,6 @@ static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode) QETH_DBF_TEXT(SETUP, 2, "setonlin"); QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); - qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1); - recover_flag = card->state; rc = qeth_core_hardsetup_card(card); if (rc) { @@ -3250,20 +3373,22 @@ static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode) goto out_remove; } else card->lan_online = 1; - qeth_l3_set_large_send(card, card->options.large_send); 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); + qeth_l3_set_large_send(card, card->options.large_send); + 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); @@ -3410,11 +3535,9 @@ static int qeth_l3_pm_resume(struct ccwgroup_device *gdev) if (card->state == CARD_STATE_RECOVER) { rc = __qeth_l3_set_online(card->gdev, 1); if (rc) { - if (card->dev) { - rtnl_lock(); - dev_close(card->dev); - rtnl_unlock(); - } + rtnl_lock(); + dev_close(card->dev); + rtnl_unlock(); } } else rc = __qeth_l3_set_online(card->gdev, 0); diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c index 3360b0941aa..25b3e7aae44 100644 --- a/drivers/s390/net/qeth_l3_sys.c +++ b/drivers/s390/net/qeth_l3_sys.c @@ -8,6 +8,8 @@ * Frank Blaschka <frank.blaschka@de.ibm.com> */ +#include <linux/slab.h> + #include "qeth_l3.h" #define QETH_DEVICE_ATTR(_id, _name, _mode, _show, _store) \ @@ -319,6 +321,61 @@ static ssize_t qeth_l3_dev_checksum_store(struct device *dev, static DEVICE_ATTR(checksumming, 0644, qeth_l3_dev_checksum_show, qeth_l3_dev_checksum_store); +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; + + return sprintf(buf, "%i\n", card->options.sniffer ? 1 : 0); +} + +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); + int ret; + unsigned long i; + + if (!card) + return -EINVAL; + + if (card->info.type != QETH_CARD_TYPE_IQD) + return -EPERM; + + if ((card->state != CARD_STATE_DOWN) && + (card->state != CARD_STATE_RECOVER)) + return -EPERM; + + ret = strict_strtoul(buf, 16, &i); + if (ret) + return -EINVAL; + switch (i) { + case 0: + card->options.sniffer = i; + break; + case 1: + ret = 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); + break; + } else + return -EPERM; + default: /* fall through */ + return -EINVAL; + } + return count; +} + +static DEVICE_ATTR(sniffer, 0644, qeth_l3_dev_sniffer_show, + qeth_l3_dev_sniffer_store); + static ssize_t qeth_l3_dev_large_send_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -373,6 +430,7 @@ static struct attribute *qeth_l3_device_attrs[] = { &dev_attr_broadcast_mode.attr, &dev_attr_canonical_macaddr.attr, &dev_attr_checksumming.attr, + &dev_attr_sniffer.attr, &dev_attr_large_send.attr, NULL, }; diff --git a/drivers/s390/net/smsgiucv.c b/drivers/s390/net/smsgiucv.c index 67f2485d237..70491274da1 100644 --- a/drivers/s390/net/smsgiucv.c +++ b/drivers/s390/net/smsgiucv.c @@ -24,6 +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> @@ -31,9 +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 @@ -100,8 +101,8 @@ 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; @@ -117,8 +118,9 @@ 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; @@ -176,7 +178,7 @@ static const struct dev_pm_ops smsg_pm_ops = { static struct device_driver smsg_driver = { .owner = THIS_MODULE, - .name = "SMSGIUCV", + .name = SMSGIUCV_DRV_NAME, .bus = &iucv_bus, .pm = &smsg_pm_ops, }; diff --git a/drivers/s390/net/smsgiucv.h b/drivers/s390/net/smsgiucv.h index 67f5d4f8378..149a1151608 100644 --- a/drivers/s390/net/smsgiucv.h +++ b/drivers/s390/net/smsgiucv.h @@ -5,6 +5,10 @@ * 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..13768879020 --- /dev/null +++ b/drivers/s390/net/smsgiucv_app.c @@ -0,0 +1,212 @@ +/* + * 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_put_driver; + } + 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_put_driver; + } + + /* register with the smsgiucv device driver */ + rc = smsg_register_callback(SMSG_PREFIX, smsg_app_callback); + if (rc) { + device_unregister(smsg_app_dev); + goto fail_put_driver; + } + + rc = 0; +fail_put_driver: + put_driver(smsgiucv_drv); + 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>"); diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 66d6c01fcf3..1e6183a86ce 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -30,6 +30,7 @@ #include <linux/miscdevice.h> #include <linux/seq_file.h> +#include <linux/slab.h> #include "zfcp_ext.h" #include "zfcp_fc.h" #include "zfcp_reqlist.h" diff --git a/drivers/s390/scsi/zfcp_cfdc.c b/drivers/s390/scsi/zfcp_cfdc.c index 0eb6eefd2c1..25d9e0ae9c5 100644 --- a/drivers/s390/scsi/zfcp_cfdc.c +++ b/drivers/s390/scsi/zfcp_cfdc.c @@ -10,6 +10,7 @@ #define KMSG_COMPONENT "zfcp" #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt +#include <linux/slab.h> #include <linux/types.h> #include <linux/miscdevice.h> #include <asm/compat.h> diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c index 7a149fd85f6..075852f6968 100644 --- a/drivers/s390/scsi/zfcp_dbf.c +++ b/drivers/s390/scsi/zfcp_dbf.c @@ -10,6 +10,7 @@ #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #include <linux/ctype.h> +#include <linux/slab.h> #include <asm/debug.h> #include "zfcp_dbf.h" #include "zfcp_ext.h" diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c index 5219670f0c9..2a1cbb74b99 100644 --- a/drivers/s390/scsi/zfcp_fc.c +++ b/drivers/s390/scsi/zfcp_fc.c @@ -10,6 +10,7 @@ #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #include <linux/types.h> +#include <linux/slab.h> #include <scsi/fc/fc_els.h> #include <scsi/libfc.h> #include "zfcp_ext.h" diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index 6538742b421..b3b1d2f7939 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -10,6 +10,7 @@ #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #include <linux/blktrace_api.h> +#include <linux/slab.h> #include <scsi/fc/fc_els.h> #include "zfcp_ext.h" #include "zfcp_fc.h" @@ -2104,7 +2105,8 @@ static void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi) blktrc.inb_usage = req->qdio_req.qdio_inb_usage; blktrc.outb_usage = req->qdio_req.qdio_outb_usage; - if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) { + if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA && + !(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { blktrc.flags |= ZFCP_BLK_LAT_VALID; blktrc.channel_lat = lat_in->channel_lat * ticks; blktrc.fabric_lat = lat_in->fabric_lat * ticks; @@ -2156,9 +2158,8 @@ static void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt); - zfcp_fsf_req_trace(req, scpnt); - skip_fsfstatus: + zfcp_fsf_req_trace(req, scpnt); zfcp_dbf_scsi_result(req->adapter->dbf, scpnt, req); scpnt->host_scribble = NULL; diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c index 71b97ff77cf..dbfa312a7f5 100644 --- a/drivers/s390/scsi/zfcp_qdio.c +++ b/drivers/s390/scsi/zfcp_qdio.c @@ -9,6 +9,7 @@ #define KMSG_COMPONENT "zfcp" #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt +#include <linux/slab.h> #include "zfcp_ext.h" #include "zfcp_qdio.h" @@ -319,8 +320,6 @@ static void zfcp_qdio_setup_init_data(struct qdio_initialize *id, id->input_handler = zfcp_qdio_int_resp; id->output_handler = zfcp_qdio_int_req; id->int_parm = (unsigned long) qdio; - id->flags = QDIO_INBOUND_0COPY_SBALS | - QDIO_OUTBOUND_0COPY_SBALS | QDIO_USE_OUTBOUND_PCIS; id->input_sbal_addr_array = (void **) (qdio->resp_q.sbal); id->output_sbal_addr_array = (void **) (qdio->req_q.sbal); diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index c3c4178888a..174b6d57d57 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -10,6 +10,7 @@ #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #include <linux/types.h> +#include <linux/slab.h> #include <scsi/fc/fc_fcp.h> #include <asm/atomic.h> #include "zfcp_ext.h" diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c index a43035d4bd7..f5f60698dc4 100644 --- a/drivers/s390/scsi/zfcp_sysfs.c +++ b/drivers/s390/scsi/zfcp_sysfs.c @@ -9,6 +9,7 @@ #define KMSG_COMPONENT "zfcp" #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt +#include <linux/slab.h> #include "zfcp_ext.h" #define ZFCP_DEV_ATTR(_feat, _name, _mode, _show, _store) \ |