diff options
author | Jeff Garzik <jeff@garzik.org> | 2006-09-19 00:42:13 -0400 |
---|---|---|
committer | Jeff Garzik <jeff@garzik.org> | 2006-09-19 00:42:13 -0400 |
commit | 4a3381feb823e06c8e2da7e283c17b0b6fdbddcf (patch) | |
tree | e1bef4c3db854bb10fd13dc67415d77b5d999533 /drivers | |
parent | fea63e38013ec628ab3f7fddc4c2148064b7910a (diff) | |
parent | 47a5c6fa0e204a2b63309c648bb2fde36836c826 (diff) |
Merge branch 'master' into upstream
Diffstat (limited to 'drivers')
30 files changed, 594 insertions, 407 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index bb66a12c84e..e85c2f8cf19 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -1276,10 +1276,15 @@ int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class, swap_buf_le16(id, ATA_ID_WORDS); /* sanity check */ - if ((class == ATA_DEV_ATA) != (ata_id_is_ata(id) | ata_id_is_cfa(id))) { - rc = -EINVAL; - reason = "device reports illegal type"; - goto err_out; + rc = -EINVAL; + reason = "device reports illegal type"; + + if (class == ATA_DEV_ATA) { + if (!ata_id_is_ata(id) && !ata_id_is_cfa(id)) + goto err_out; + } else { + if (ata_id_is_ata(id)) + goto err_out; } if (post_reset && class == ATA_DEV_ATA) { diff --git a/drivers/atm/he.c b/drivers/atm/he.c index d369130f423..dd96123a2b7 100644 --- a/drivers/atm/he.c +++ b/drivers/atm/he.c @@ -2282,6 +2282,8 @@ __enqueue_tpd(struct he_dev *he_dev, struct he_tpd *tpd, unsigned cid) TPDRQ_MASK(he_readl(he_dev, TPDRQ_B_H))); if (new_tail == he_dev->tpdrq_head) { + int slot; + hprintk("tpdrq full (cid 0x%x)\n", cid); /* * FIXME @@ -2289,6 +2291,13 @@ __enqueue_tpd(struct he_dev *he_dev, struct he_tpd *tpd, unsigned cid) * after service_tbrq, service the backlog * for now, we just drop the pdu */ + for (slot = 0; slot < TPD_MAXIOV; ++slot) { + if (tpd->iovec[slot].addr) + pci_unmap_single(he_dev->pci_dev, + tpd->iovec[slot].addr, + tpd->iovec[slot].len & TPD_LEN_MASK, + PCI_DMA_TODEVICE); + } if (tpd->skb) { if (tpd->vcc->pop) tpd->vcc->pop(tpd->vcc, tpd->skb); diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 7b0eca703a6..2cd3391ff87 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -48,14 +48,14 @@ #include <linux/completion.h> #define CCISS_DRIVER_VERSION(maj,min,submin) ((maj<<16)|(min<<8)|(submin)) -#define DRIVER_NAME "HP CISS Driver (v 2.6.10)" -#define DRIVER_VERSION CCISS_DRIVER_VERSION(2,6,10) +#define DRIVER_NAME "HP CISS Driver (v 3.6.10)" +#define DRIVER_VERSION CCISS_DRIVER_VERSION(3,6,10) /* Embedded module documentation macros - see modules.h */ MODULE_AUTHOR("Hewlett-Packard Company"); -MODULE_DESCRIPTION("Driver for HP Controller SA5xxx SA6xxx version 2.6.10"); +MODULE_DESCRIPTION("Driver for HP Controller SA5xxx SA6xxx version 3.6.10"); MODULE_SUPPORTED_DEVICE("HP SA5i SA5i+ SA532 SA5300 SA5312 SA641 SA642 SA6400" - " SA6i P600 P800 P400 P400i E200 E200i"); + " SA6i P600 P800 P400 P400i E200 E200i E500"); MODULE_LICENSE("GPL"); #include "cciss_cmd.h" @@ -82,6 +82,7 @@ static const struct pci_device_id cciss_pci_device_id[] = { {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD, 0x103C, 0x3213}, {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD, 0x103C, 0x3214}, {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD, 0x103C, 0x3215}, + {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC, 0x103C, 0x3233}, {0,} }; @@ -110,6 +111,7 @@ static struct board_type products[] = { {0x3213103C, "Smart Array E200i", &SA5_access}, {0x3214103C, "Smart Array E200i", &SA5_access}, {0x3215103C, "Smart Array E200i", &SA5_access}, + {0x3233103C, "Smart Array E500", &SA5_access}, }; /* How long to wait (in milliseconds) for board to go into simple mode */ diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c index ca2f538e549..613d67f1c7f 100644 --- a/drivers/char/hvc_console.c +++ b/drivers/char/hvc_console.c @@ -668,6 +668,7 @@ int khvcd(void *unused) do { poll_mask = 0; hvc_kicked = 0; + try_to_freeze(); wmb(); if (cpus_empty(cpus_in_xmon)) { spin_lock(&hvc_structs_lock); diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index f57eba0bf25..abca98beac1 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -402,10 +402,10 @@ static void handle_flags(struct smi_info *smi_info) smi_info->curr_msg->data, smi_info->curr_msg->data_size); smi_info->si_state = SI_GETTING_EVENTS; - } else if (smi_info->msg_flags & OEM_DATA_AVAIL) { - if (smi_info->oem_data_avail_handler) - if (smi_info->oem_data_avail_handler(smi_info)) - goto retry; + } else if (smi_info->msg_flags & OEM_DATA_AVAIL && + smi_info->oem_data_avail_handler) { + if (smi_info->oem_data_avail_handler(smi_info)) + goto retry; } else { smi_info->si_state = SI_NORMAL; } @@ -2481,6 +2481,7 @@ static __devinit int init_ipmi_si(void) #ifdef CONFIG_PCI pci_unregister_driver(&ipmi_pci_driver); #endif + driver_unregister(&ipmi_driver); printk("ipmi_si: Unable to find any System Interface(s)\n"); return -ENODEV; } else { diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c index 351dab2fcac..d419e4bb54f 100644 --- a/drivers/ide/pci/alim15x3.c +++ b/drivers/ide/pci/alim15x3.c @@ -730,7 +730,7 @@ static unsigned int __devinit ata66_ali15x3 (ide_hwif_t *hwif) if(m5229_revision <= 0x20) tmpbyte = (tmpbyte & (~0x02)) | 0x01; - else if (m5229_revision == 0xc7) + else if (m5229_revision == 0xc7 || m5229_revision == 0xc8) tmpbyte |= 0x03; else tmpbyte |= 0x01; diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index d6f99d5720f..5d625a81193 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -49,7 +49,7 @@ MODULE_DESCRIPTION("Generic RDMA CM Agent"); MODULE_LICENSE("Dual BSD/GPL"); #define CMA_CM_RESPONSE_TIMEOUT 20 -#define CMA_MAX_CM_RETRIES 3 +#define CMA_MAX_CM_RETRIES 15 static void cma_add_one(struct ib_device *device); static void cma_remove_one(struct ib_device *device); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index b5e6a7be603..ec356ce7cdc 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -326,6 +326,7 @@ ipoib_mcast_sendonly_join_complete(int status, /* Clear the busy flag so we try again */ clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags); + mcast->query = NULL; } complete(&mcast->done); diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 8257d5a2c8f..fd8344cdc0d 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -799,13 +799,6 @@ static void srp_process_rsp(struct srp_target_port *target, struct srp_rsp *rsp) spin_unlock_irqrestore(target->scsi_host->host_lock, flags); } -static void srp_reconnect_work(void *target_ptr) -{ - struct srp_target_port *target = target_ptr; - - srp_reconnect_target(target); -} - static void srp_handle_recv(struct srp_target_port *target, struct ib_wc *wc) { struct srp_iu *iu; @@ -858,7 +851,6 @@ static void srp_completion(struct ib_cq *cq, void *target_ptr) { struct srp_target_port *target = target_ptr; struct ib_wc wc; - unsigned long flags; ib_req_notify_cq(cq, IB_CQ_NEXT_COMP); while (ib_poll_cq(cq, 1, &wc) > 0) { @@ -866,10 +858,6 @@ static void srp_completion(struct ib_cq *cq, void *target_ptr) printk(KERN_ERR PFX "failed %s status %d\n", wc.wr_id & SRP_OP_RECV ? "receive" : "send", wc.status); - spin_lock_irqsave(target->scsi_host->host_lock, flags); - if (target->state == SRP_TARGET_LIVE) - schedule_work(&target->work); - spin_unlock_irqrestore(target->scsi_host->host_lock, flags); break; } @@ -1705,8 +1693,6 @@ static ssize_t srp_create_target(struct class_device *class_dev, target->scsi_host = target_host; target->srp_host = host; - INIT_WORK(&target->work, srp_reconnect_work, target); - INIT_LIST_HEAD(&target->free_reqs); INIT_LIST_HEAD(&target->req_queue); for (i = 0; i < SRP_SQ_SIZE; ++i) { diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index c8cbc00243f..0a54d003ef3 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -1204,7 +1204,7 @@ static int nand_write_oob_syndrome(struct mtd_info *mtd, pos = steps * (eccsize + chunk); steps = 0; } else - pos = eccsize + chunk; + pos = eccsize; chip->cmdfunc(mtd, NAND_CMD_SEQIN, pos, page); for (i = 0; i < steps; i++) { @@ -1567,7 +1567,7 @@ static uint8_t *nand_fill_oob(struct nand_chip *chip, uint8_t *oob, bytes = min_t(size_t, len, free->length); boffs = free->offset; } - memcpy(chip->oob_poi + woffs, oob, bytes); + memcpy(chip->oob_poi + boffs, oob, bytes); oob += bytes; } return oob; diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 726f43d5593..98ef9f85482 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -1433,8 +1433,8 @@ e1000_configure_tx(struct e1000_adapter *adapter) E1000_WRITE_REG(hw, TDBAL, (tdba & 0x00000000ffffffffULL)); E1000_WRITE_REG(hw, TDT, 0); E1000_WRITE_REG(hw, TDH, 0); - adapter->tx_ring[0].tdh = E1000_TDH; - adapter->tx_ring[0].tdt = E1000_TDT; + adapter->tx_ring[0].tdh = ((hw->mac_type >= e1000_82543) ? E1000_TDH : E1000_82542_TDH); + adapter->tx_ring[0].tdt = ((hw->mac_type >= e1000_82543) ? E1000_TDT : E1000_82542_TDT); break; } @@ -1840,8 +1840,8 @@ e1000_configure_rx(struct e1000_adapter *adapter) E1000_WRITE_REG(hw, RDBAL, (rdba & 0x00000000ffffffffULL)); E1000_WRITE_REG(hw, RDT, 0); E1000_WRITE_REG(hw, RDH, 0); - adapter->rx_ring[0].rdh = E1000_RDH; - adapter->rx_ring[0].rdt = E1000_RDT; + adapter->rx_ring[0].rdh = ((hw->mac_type >= e1000_82543) ? E1000_RDH : E1000_82542_RDH); + adapter->rx_ring[0].rdt = ((hw->mac_type >= e1000_82543) ? E1000_RDT : E1000_82542_RDT); break; } diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index 760c61b9886..eeab1df5bef 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -385,6 +385,8 @@ static int mv643xx_eth_receive_queue(struct net_device *dev, int budget) struct pkt_info pkt_info; while (budget-- > 0 && eth_port_receive(mp, &pkt_info) == ETH_OK) { + dma_unmap_single(NULL, pkt_info.buf_ptr, RX_SKB_SIZE, + DMA_FROM_DEVICE); mp->rx_desc_count--; received_packets++; diff --git a/drivers/net/wireless/zd1211rw/zd_chip.c b/drivers/net/wireless/zd1211rw/zd_chip.c index da9d06bdb81..aa792821854 100644 --- a/drivers/net/wireless/zd1211rw/zd_chip.c +++ b/drivers/net/wireless/zd1211rw/zd_chip.c @@ -1430,9 +1430,43 @@ static int ofdm_qual_db(u8 status_quality, u8 rate, unsigned int size) break; } + switch (rate) { + case ZD_OFDM_RATE_6M: + case ZD_OFDM_RATE_9M: + i += 3; + break; + case ZD_OFDM_RATE_12M: + case ZD_OFDM_RATE_18M: + i += 5; + break; + case ZD_OFDM_RATE_24M: + case ZD_OFDM_RATE_36M: + i += 9; + break; + case ZD_OFDM_RATE_48M: + case ZD_OFDM_RATE_54M: + i += 15; + break; + default: + return -EINVAL; + } + return i; } +static int ofdm_qual_percent(u8 status_quality, u8 rate, unsigned int size) +{ + int r; + + r = ofdm_qual_db(status_quality, rate, size); + ZD_ASSERT(r >= 0); + if (r < 0) + r = 0; + + r = (r * 100)/29; + return r <= 100 ? r : 100; +} + static unsigned int log10times100(unsigned int x) { static const u8 log10[] = { @@ -1476,31 +1510,28 @@ static int cck_snr_db(u8 status_quality) return r; } -static int rx_qual_db(const void *rx_frame, unsigned int size, - const struct rx_status *status) +static int cck_qual_percent(u8 status_quality) { - return (status->frame_status&ZD_RX_OFDM) ? - ofdm_qual_db(status->signal_quality_ofdm, - zd_ofdm_plcp_header_rate(rx_frame), - size) : - cck_snr_db(status->signal_quality_cck); + int r; + + r = cck_snr_db(status_quality); + r = (100*r)/17; + return r <= 100 ? r : 100; } u8 zd_rx_qual_percent(const void *rx_frame, unsigned int size, const struct rx_status *status) { - int r = rx_qual_db(rx_frame, size, status); - if (r < 0) - r = 0; - r = (r * 100) / 14; - if (r > 100) - r = 100; - return r; + return (status->frame_status&ZD_RX_OFDM) ? + ofdm_qual_percent(status->signal_quality_ofdm, + zd_ofdm_plcp_header_rate(rx_frame), + size) : + cck_qual_percent(status->signal_quality_cck); } u8 zd_rx_strength_percent(u8 rssi) { - int r = (rssi*100) / 30; + int r = (rssi*100) / 41; if (r > 100) r = 100; return (u8) r; diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c index d6f3e02a0b5..a9bd80a0861 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.c +++ b/drivers/net/wireless/zd1211rw/zd_mac.c @@ -816,13 +816,25 @@ static int filter_rx(struct ieee80211_device *ieee, return -EINVAL; } -static void update_qual_rssi(struct zd_mac *mac, u8 qual_percent, u8 rssi) +static void update_qual_rssi(struct zd_mac *mac, + const u8 *buffer, unsigned int length, + u8 qual_percent, u8 rssi_percent) { unsigned long flags; + struct ieee80211_hdr_3addr *hdr; + int i; + + hdr = (struct ieee80211_hdr_3addr *)buffer; + if (length < offsetof(struct ieee80211_hdr_3addr, addr3)) + return; + if (memcmp(hdr->addr2, zd_mac_to_ieee80211(mac)->bssid, ETH_ALEN) != 0) + return; spin_lock_irqsave(&mac->lock, flags); - mac->qual_average = (7 * mac->qual_average + qual_percent) / 8; - mac->rssi_average = (7 * mac->rssi_average + rssi) / 8; + i = mac->stats_count % ZD_MAC_STATS_BUFFER_SIZE; + mac->qual_buffer[i] = qual_percent; + mac->rssi_buffer[i] = rssi_percent; + mac->stats_count++; spin_unlock_irqrestore(&mac->lock, flags); } @@ -853,7 +865,6 @@ static int fill_rx_stats(struct ieee80211_rx_stats *stats, if (stats->rate) stats->mask |= IEEE80211_STATMASK_RATE; - update_qual_rssi(mac, stats->signal, stats->rssi); return 0; } @@ -877,6 +888,8 @@ int zd_mac_rx(struct zd_mac *mac, const u8 *buffer, unsigned int length) sizeof(struct rx_status); buffer += ZD_PLCP_HEADER_SIZE; + update_qual_rssi(mac, buffer, length, stats.signal, stats.rssi); + r = filter_rx(ieee, buffer, length, &stats); if (r <= 0) return r; @@ -981,17 +994,31 @@ struct iw_statistics *zd_mac_get_wireless_stats(struct net_device *ndev) { struct zd_mac *mac = zd_netdev_mac(ndev); struct iw_statistics *iw_stats = &mac->iw_stats; + unsigned int i, count, qual_total, rssi_total; memset(iw_stats, 0, sizeof(struct iw_statistics)); /* We are not setting the status, because ieee->state is not updated * at all and this driver doesn't track authentication state. */ spin_lock_irq(&mac->lock); - iw_stats->qual.qual = mac->qual_average; - iw_stats->qual.level = mac->rssi_average; - iw_stats->qual.updated = IW_QUAL_QUAL_UPDATED|IW_QUAL_LEVEL_UPDATED| - IW_QUAL_NOISE_INVALID; + count = mac->stats_count < ZD_MAC_STATS_BUFFER_SIZE ? + mac->stats_count : ZD_MAC_STATS_BUFFER_SIZE; + qual_total = rssi_total = 0; + for (i = 0; i < count; i++) { + qual_total += mac->qual_buffer[i]; + rssi_total += mac->rssi_buffer[i]; + } spin_unlock_irq(&mac->lock); + iw_stats->qual.updated = IW_QUAL_NOISE_INVALID; + if (count > 0) { + iw_stats->qual.qual = qual_total / count; + iw_stats->qual.level = rssi_total / count; + iw_stats->qual.updated |= + IW_QUAL_QUAL_UPDATED|IW_QUAL_LEVEL_UPDATED; + } else { + iw_stats->qual.updated |= + IW_QUAL_QUAL_INVALID|IW_QUAL_LEVEL_INVALID; + } /* TODO: update counter */ return iw_stats; } diff --git a/drivers/net/wireless/zd1211rw/zd_mac.h b/drivers/net/wireless/zd1211rw/zd_mac.h index 71e382c589e..b3ba49b8463 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.h +++ b/drivers/net/wireless/zd1211rw/zd_mac.h @@ -1,4 +1,4 @@ -/* zd_mac.c +/* zd_mac.h * * 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 @@ -87,9 +87,9 @@ struct rx_length_info { #define RX_LENGTH_INFO_TAG 0x697e struct rx_status { + u8 signal_quality_cck; /* rssi */ u8 signal_strength; - u8 signal_quality_cck; u8 signal_quality_ofdm; u8 decryption_type; u8 frame_status; @@ -120,14 +120,17 @@ enum mac_flags { MAC_FIXED_CHANNEL = 0x01, }; +#define ZD_MAC_STATS_BUFFER_SIZE 16 + struct zd_mac { struct net_device *netdev; struct zd_chip chip; spinlock_t lock; /* Unlocked reading possible */ struct iw_statistics iw_stats; - u8 qual_average; - u8 rssi_average; + unsigned int stats_count; + u8 qual_buffer[ZD_MAC_STATS_BUFFER_SIZE]; + u8 rssi_buffer[ZD_MAC_STATS_BUFFER_SIZE]; u8 regdomain; u8 default_regdomain; u8 requested_channel; diff --git a/drivers/s390/net/Kconfig b/drivers/s390/net/Kconfig index 54885475492..1a93fa684e9 100644 --- a/drivers/s390/net/Kconfig +++ b/drivers/s390/net/Kconfig @@ -92,15 +92,6 @@ config QETH_VLAN If CONFIG_QETH is switched on, this option will include IEEE 802.1q VLAN support in the qeth device driver. -config QETH_PERF_STATS - bool "Performance statistics in /proc" - depends on QETH - help - When switched on, this option will add a file in the proc-fs - (/proc/qeth_perf_stats) containing performance statistics. It - may slightly impact performance, so this is only recommended for - internal tuning of the device driver. - config CCWGROUP tristate default (LCS || CTC || QETH) diff --git a/drivers/s390/net/Makefile b/drivers/s390/net/Makefile index 6775a837d64..4777e36a922 100644 --- a/drivers/s390/net/Makefile +++ b/drivers/s390/net/Makefile @@ -10,7 +10,6 @@ obj-$(CONFIG_SMSGIUCV) += smsgiucv.o obj-$(CONFIG_CTC) += ctc.o fsm.o cu3088.o obj-$(CONFIG_LCS) += lcs.o cu3088.o obj-$(CONFIG_CLAW) += claw.o cu3088.o -obj-$(CONFIG_MPC) += ctcmpc.o fsm.o cu3088.o qeth-y := qeth_main.o qeth_mpc.o qeth_sys.o qeth_eddp.o qeth-$(CONFIG_PROC_FS) += qeth_proc.o obj-$(CONFIG_QETH) += qeth.o diff --git a/drivers/s390/net/ctcmain.c b/drivers/s390/net/ctcmain.c index 8a4b5812014..3257c22dd79 100644 --- a/drivers/s390/net/ctcmain.c +++ b/drivers/s390/net/ctcmain.c @@ -1714,6 +1714,9 @@ add_channel(struct ccw_device *cdev, enum channel_types type) kfree(ch); return 0; } + + spin_lock_init(&ch->collect_lock); + fsm_settimer(ch->fsm, &ch->timer); skb_queue_head_init(&ch->io_queue); skb_queue_head_init(&ch->collect_queue); diff --git a/drivers/s390/net/iucv.c b/drivers/s390/net/iucv.c index 0e863df4027..821dde86e24 100644 --- a/drivers/s390/net/iucv.c +++ b/drivers/s390/net/iucv.c @@ -335,8 +335,8 @@ do { \ #else -#define iucv_debug(lvl, fmt, args...) -#define iucv_dumpit(title, buf, len) +#define iucv_debug(lvl, fmt, args...) do { } while (0) +#define iucv_dumpit(title, buf, len) do { } while (0) #endif diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c index 2eded55ae88..16ac68c27a2 100644 --- a/drivers/s390/net/lcs.c +++ b/drivers/s390/net/lcs.c @@ -670,9 +670,8 @@ lcs_ready_buffer(struct lcs_channel *channel, struct lcs_buffer *buffer) int index, rc; LCS_DBF_TEXT(5, trace, "rdybuff"); - if (buffer->state != BUF_STATE_LOCKED && - buffer->state != BUF_STATE_PROCESSED) - BUG(); + BUG_ON(buffer->state != BUF_STATE_LOCKED && + buffer->state != BUF_STATE_PROCESSED); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); buffer->state = BUF_STATE_READY; index = buffer - channel->iob; @@ -696,8 +695,7 @@ __lcs_processed_buffer(struct lcs_channel *channel, struct lcs_buffer *buffer) int index, prev, next; LCS_DBF_TEXT(5, trace, "prcsbuff"); - if (buffer->state != BUF_STATE_READY) - BUG(); + BUG_ON(buffer->state != BUF_STATE_READY); buffer->state = BUF_STATE_PROCESSED; index = buffer - channel->iob; prev = (index - 1) & (LCS_NUM_BUFFS - 1); @@ -729,9 +727,8 @@ lcs_release_buffer(struct lcs_channel *channel, struct lcs_buffer *buffer) unsigned long flags; LCS_DBF_TEXT(5, trace, "relbuff"); - if (buffer->state != BUF_STATE_LOCKED && - buffer->state != BUF_STATE_PROCESSED) - BUG(); + BUG_ON(buffer->state != BUF_STATE_LOCKED && + buffer->state != BUF_STATE_PROCESSED); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); buffer->state = BUF_STATE_EMPTY; spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c index 5d6e6cbfa36..d7d1cc0a5c8 100644 --- a/drivers/s390/net/netiucv.c +++ b/drivers/s390/net/netiucv.c @@ -112,7 +112,12 @@ struct iucv_connection { /** * Linked list of all connection structs. */ -static struct iucv_connection *iucv_connections; +struct iucv_connection_struct { + struct iucv_connection *iucv_connections; + rwlock_t iucv_rwlock; +}; + +static struct iucv_connection_struct iucv_conns; /** * Representation of event-data for the @@ -1368,8 +1373,10 @@ user_write (struct device *dev, struct device_attribute *attr, const char *buf, struct net_device *ndev = priv->conn->netdev; char *p; char *tmp; - char username[10]; + char username[9]; int i; + struct iucv_connection **clist = &iucv_conns.iucv_connections; + unsigned long flags; IUCV_DBF_TEXT(trace, 3, __FUNCTION__); if (count>9) { @@ -1382,7 +1389,7 @@ user_write (struct device *dev, struct device_attribute *attr, const char *buf, tmp = strsep((char **) &buf, "\n"); for (i=0, p=tmp; i<8 && *p; i++, p++) { if (isalnum(*p) || (*p == '$')) - username[i]= *p; + username[i]= toupper(*p); else if (*p == '\n') { /* trailing lf, grr */ break; @@ -1395,11 +1402,11 @@ user_write (struct device *dev, struct device_attribute *attr, const char *buf, return -EINVAL; } } - while (i<9) + while (i<8) username[i++] = ' '; - username[9] = '\0'; + username[8] = '\0'; - if (memcmp(username, priv->conn->userid, 8)) { + if (memcmp(username, priv->conn->userid, 9)) { /* username changed */ if (ndev->flags & (IFF_UP | IFF_RUNNING)) { PRINT_WARN( @@ -1410,6 +1417,19 @@ user_write (struct device *dev, struct device_attribute *attr, const char *buf, return -EBUSY; } } + read_lock_irqsave(&iucv_conns.iucv_rwlock, flags); + while (*clist) { + if (!strncmp(username, (*clist)->userid, 9) || + ((*clist)->netdev != ndev)) + break; + clist = &((*clist)->next); + } + read_unlock_irqrestore(&iucv_conns.iucv_rwlock, flags); + if (*clist) { + PRINT_WARN("netiucv: Connection to %s already exists\n", + username); + return -EEXIST; + } memcpy(priv->conn->userid, username, 9); return count; @@ -1781,13 +1801,15 @@ netiucv_unregister_device(struct device *dev) static struct iucv_connection * netiucv_new_connection(struct net_device *dev, char *username) { - struct iucv_connection **clist = &iucv_connections; + unsigned long flags; + struct iucv_connection **clist = &iucv_conns.iucv_connections; struct iucv_connection *conn = kzalloc(sizeof(struct iucv_connection), GFP_KERNEL); if (conn) { skb_queue_head_init(&conn->collect_queue); skb_queue_head_init(&conn->commit_queue); + spin_lock_init(&conn->collect_lock); conn->max_buffsize = NETIUCV_BUFSIZE_DEFAULT; conn->netdev = dev; @@ -1822,8 +1844,10 @@ netiucv_new_connection(struct net_device *dev, char *username) fsm_newstate(conn->fsm, CONN_STATE_STOPPED); } + write_lock_irqsave(&iucv_conns.iucv_rwlock, flags); conn->next = *clist; *clist = conn; + write_unlock_irqrestore(&iucv_conns.iucv_rwlock, flags); } return conn; } @@ -1835,14 +1859,17 @@ netiucv_new_connection(struct net_device *dev, char *username) static void netiucv_remove_connection(struct iucv_connection *conn) { - struct iucv_connection **clist = &iucv_connections; + struct iucv_connection **clist = &iucv_conns.iucv_connections; + unsigned long flags; IUCV_DBF_TEXT(trace, 3, __FUNCTION__); if (conn == NULL) return; + write_lock_irqsave(&iucv_conns.iucv_rwlock, flags); while (*clist) { if (*clist == conn) { *clist = conn->next; + write_unlock_irqrestore(&iucv_conns.iucv_rwlock, flags); if (conn->handle) { iucv_unregister_program(conn->handle); conn->handle = NULL; @@ -1855,6 +1882,7 @@ netiucv_remove_connection(struct iucv_connection *conn) } clist = &((*clist)->next); } + write_unlock_irqrestore(&iucv_conns.iucv_rwlock, flags); } /** @@ -1947,9 +1975,11 @@ static ssize_t conn_write(struct device_driver *drv, const char *buf, size_t count) { char *p; - char username[10]; + char username[9]; int i, ret; struct net_device *dev; + struct iucv_connection **clist = &iucv_conns.iucv_connections; + unsigned long flags; IUCV_DBF_TEXT(trace, 3, __FUNCTION__); if (count>9) { @@ -1960,7 +1990,7 @@ conn_write(struct device_driver *drv, const char *buf, size_t count) for (i=0, p=(char *)buf; i<8 && *p; i++, p++) { if (isalnum(*p) || (*p == '$')) - username[i]= *p; + username[i]= toupper(*p); else if (*p == '\n') { /* trailing lf, grr */ break; @@ -1971,9 +2001,22 @@ conn_write(struct device_driver *drv, const char *buf, size_t count) return -EINVAL; } } - while (i<9) + while (i<8) username[i++] = ' '; - username[9] = '\0'; + username[8] = '\0'; + + read_lock_irqsave(&iucv_conns.iucv_rwlock, flags); + while (*clist) { + if (!strncmp(username, (*clist)->userid, 9)) + break; + clist = &((*clist)->next); + } + read_unlock_irqrestore(&iucv_conns.iucv_rwlock, flags); + if (*clist) { + PRINT_WARN("netiucv: Connection to %s already exists\n", + username); + return -EEXIST; + } dev = netiucv_init_netdevice(username); if (!dev) { PRINT_WARN( @@ -2015,7 +2058,8 @@ DRIVER_ATTR(connection, 0200, NULL, conn_write); static ssize_t remove_write (struct device_driver *drv, const char *buf, size_t count) { - struct iucv_connection **clist = &iucv_connections; + struct iucv_connection **clist = &iucv_conns.iucv_connections; + unsigned long flags; struct net_device *ndev; struct netiucv_priv *priv; struct device *dev; @@ -2026,7 +2070,7 @@ remove_write (struct device_driver *drv, const char *buf, size_t count) IUCV_DBF_TEXT(trace, 3, __FUNCTION__); if (count >= IFNAMSIZ) - count = IFNAMSIZ-1; + count = IFNAMSIZ - 1;; for (i=0, p=(char *)buf; i<count && *p; i++, p++) { if ((*p == '\n') || (*p == ' ')) { @@ -2038,6 +2082,7 @@ remove_write (struct device_driver *drv, const char *buf, size_t count) } name[i] = '\0'; + read_lock_irqsave(&iucv_conns.iucv_rwlock, flags); while (*clist) { ndev = (*clist)->netdev; priv = (struct netiucv_priv*)ndev->priv; @@ -2047,6 +2092,7 @@ remove_write (struct device_driver *drv, const char *buf, size_t count) clist = &((*clist)->next); continue; } + read_unlock_irqrestore(&iucv_conns.iucv_rwlock, flags); if (ndev->flags & (IFF_UP | IFF_RUNNING)) { PRINT_WARN( "netiucv: net device %s active with peer %s\n", @@ -2060,6 +2106,7 @@ remove_write (struct device_driver *drv, const char *buf, size_t count) netiucv_unregister_device(dev); return count; } + read_unlock_irqrestore(&iucv_conns.iucv_rwlock, flags); PRINT_WARN("netiucv: net device %s unknown\n", name); IUCV_DBF_TEXT(data, 2, "remove_write: unknown device\n"); return -EINVAL; @@ -2077,8 +2124,8 @@ static void __exit netiucv_exit(void) { IUCV_DBF_TEXT(trace, 3, __FUNCTION__); - while (iucv_connections) { - struct net_device *ndev = iucv_connections->netdev; + while (iucv_conns.iucv_connections) { + struct net_device *ndev = iucv_conns.iucv_connections->netdev; struct netiucv_priv *priv = (struct netiucv_priv*)ndev->priv; struct device *dev = priv->dev; @@ -2120,6 +2167,7 @@ netiucv_init(void) if (!ret) { ret = driver_create_file(&netiucv_driver, &driver_attr_remove); netiucv_banner(); + rwlock_init(&iucv_conns.iucv_rwlock); } else { PRINT_ERR("NETIUCV: failed to add driver attribute.\n"); IUCV_DBF_TEXT_(setup, 2, "ret %d from driver_create_file\n", ret); diff --git a/drivers/s390/net/qeth.h b/drivers/s390/net/qeth.h index 619f4a0c716..821383d8cbe 100644 --- a/drivers/s390/net/qeth.h +++ b/drivers/s390/net/qeth.h @@ -176,7 +176,6 @@ extern struct ccwgroup_driver qeth_ccwgroup_driver; /** * card stuff */ -#ifdef CONFIG_QETH_PERF_STATS struct qeth_perf_stats { unsigned int bufs_rec; unsigned int bufs_sent; @@ -211,8 +210,10 @@ struct qeth_perf_stats { unsigned int large_send_cnt; unsigned int sg_skbs_sent; unsigned int sg_frags_sent; + /* initial values when measuring starts */ + unsigned long initial_rx_packets; + unsigned long initial_tx_packets; }; -#endif /* CONFIG_QETH_PERF_STATS */ /* Routing stuff */ struct qeth_routing_info { @@ -462,6 +463,7 @@ enum qeth_qdio_info_states { QETH_QDIO_UNINITIALIZED, QETH_QDIO_ALLOCATED, QETH_QDIO_ESTABLISHED, + QETH_QDIO_CLEANING }; struct qeth_buffer_pool_entry { @@ -536,7 +538,7 @@ struct qeth_qdio_out_q { } __attribute__ ((aligned(256))); struct qeth_qdio_info { - volatile enum qeth_qdio_info_states state; + atomic_t state; /* input */ struct qeth_qdio_q *in_q; struct qeth_qdio_buffer_pool in_buf_pool; @@ -767,6 +769,7 @@ struct qeth_card_options { int fake_ll; int layer2; enum qeth_large_send_types large_send; + int performance_stats; }; /* @@ -819,9 +822,7 @@ struct qeth_card { struct list_head cmd_waiter_list; /* QDIO buffer handling */ struct qeth_qdio_info qdio; -#ifdef CONFIG_QETH_PERF_STATS struct qeth_perf_stats perf_stats; -#endif /* CONFIG_QETH_PERF_STATS */ int use_hard_stop; int (*orig_hard_header)(struct sk_buff *,struct net_device *, unsigned short,void *,void *,unsigned); @@ -859,23 +860,18 @@ qeth_get_ipa_adp_type(enum qeth_link_types link_type) } } -static inline int -qeth_realloc_headroom(struct qeth_card *card, struct sk_buff **skb, int size) +static inline struct sk_buff * +qeth_realloc_headroom(struct qeth_card *card, struct sk_buff *skb, int size) { - struct sk_buff *new_skb = NULL; - - if (skb_headroom(*skb) < size){ - new_skb = skb_realloc_headroom(*skb, size); - if (!new_skb) { - PRINT_ERR("qeth_prepare_skb: could " - "not realloc headroom for qeth_hdr " - "on interface %s", QETH_CARD_IFNAME(card)); - return -ENOMEM; - } - kfree_skb(*skb); - *skb = new_skb; - } - return 0; + struct sk_buff *new_skb = skb; + + if (skb_headroom(skb) >= size) + return skb; + new_skb = skb_realloc_headroom(skb, size); + if (!new_skb) + PRINT_ERR("Could not realloc headroom for qeth_hdr " + "on interface %s", QETH_CARD_IFNAME(card)); + return new_skb; } static inline struct sk_buff * @@ -885,16 +881,15 @@ qeth_pskb_unshare(struct sk_buff *skb, int pri) if (!skb_cloned(skb)) return skb; nskb = skb_copy(skb, pri); - kfree_skb(skb); /* free our shared copy */ return nskb; } static inline void * -qeth_push_skb(struct qeth_card *card, struct sk_buff **skb, int size) +qeth_push_skb(struct qeth_card *card, struct sk_buff *skb, int size) { void *hdr; - hdr = (void *) skb_push(*skb, size); + hdr = (void *) skb_push(skb, size); /* * sanity check, the Linux memory allocation scheme should * never present us cases like this one (the qdio header size plus @@ -903,8 +898,7 @@ qeth_push_skb(struct qeth_card *card, struct sk_buff **skb, int size) if ((((unsigned long) hdr) & (~(PAGE_SIZE - 1))) != (((unsigned long) hdr + size + QETH_IP_HEADER_SIZE) & (~(PAGE_SIZE - 1)))) { - PRINT_ERR("qeth_prepare_skb: misaligned " - "packet on interface %s. Discarded.", + PRINT_ERR("Misaligned packet on interface %s. Discarded.", QETH_CARD_IFNAME(card)); return NULL; } @@ -1056,13 +1050,11 @@ qeth_get_arphdr_type(int cardtype, int linktype) } } -#ifdef CONFIG_QETH_PERF_STATS static inline int qeth_get_micros(void) { return (int) (get_clock() >> 12); } -#endif static inline int qeth_get_qdio_q_format(struct qeth_card *card) @@ -1096,10 +1088,11 @@ qeth_string_to_ipaddr4(const char *buf, __u8 *addr) { int count = 0, rc = 0; int in[4]; + char c; - rc = sscanf(buf, "%d.%d.%d.%d%n", - &in[0], &in[1], &in[2], &in[3], &count); - if (rc != 4 || count<=0) + rc = sscanf(buf, "%u.%u.%u.%u%c", + &in[0], &in[1], &in[2], &in[3], &c); + if (rc != 4 && (rc != 5 || c != '\n')) return -EINVAL; for (count = 0; count < 4; count++) { if (in[count] > 255) @@ -1123,24 +1116,28 @@ qeth_ipaddr6_to_string(const __u8 *addr, char *buf) static inline int qeth_string_to_ipaddr6(const char *buf, __u8 *addr) { - char *end, *start; + const char *end, *end_tmp, *start; __u16 *in; char num[5]; int num2, cnt, out, found, save_cnt; unsigned short in_tmp[8] = {0, }; cnt = out = found = save_cnt = num2 = 0; - end = start = (char *) buf; + end = start = buf; in = (__u16 *) addr; memset(in, 0, 16); - while (end) { - end = strchr(end,':'); + while (*end) { + end = strchr(start,':'); if (end == NULL) { - end = (char *)buf + (strlen(buf)); - out = 1; + end = buf + strlen(buf); + if ((end_tmp = strchr(start, '\n')) != NULL) + end = end_tmp; + out = 1; } if ((end - start)) { memset(num, 0, 5); + if ((end - start) > 4) + return -EINVAL; memcpy(num, start, end - start); if (!qeth_isxdigit(num)) return -EINVAL; @@ -1158,6 +1155,8 @@ qeth_string_to_ipaddr6(const char *buf, __u8 *addr) } start = ++end; } + if (cnt + save_cnt > 8) + return -EINVAL; cnt = 7; while (save_cnt) in[cnt--] = in_tmp[--save_cnt]; diff --git a/drivers/s390/net/qeth_eddp.c b/drivers/s390/net/qeth_eddp.c index 8491598f914..a363721cf28 100644 --- a/drivers/s390/net/qeth_eddp.c +++ b/drivers/s390/net/qeth_eddp.c @@ -179,9 +179,8 @@ out_check: flush_cnt++; } } else { -#ifdef CONFIG_QETH_PERF_STATS - queue->card->perf_stats.skbs_sent_pack++; -#endif + 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)) { diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c index e1327b8fce0..5613b4564fa 100644 --- a/drivers/s390/net/qeth_main.c +++ b/drivers/s390/net/qeth_main.c @@ -1073,6 +1073,7 @@ qeth_set_intial_options(struct qeth_card *card) card->options.layer2 = 1; else card->options.layer2 = 0; + card->options.performance_stats = 1; } /** @@ -1708,6 +1709,7 @@ qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob) "IP address reset.\n", QETH_CARD_IFNAME(card), card->info.chpid); + netif_carrier_on(card->dev); qeth_schedule_recovery(card); return NULL; case IPA_CMD_MODCCID: @@ -2464,24 +2466,6 @@ qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb, qeth_rebuild_skb_fake_ll_eth(card, skb, hdr); } -static inline void -qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb, - struct qeth_hdr *hdr) -{ -#ifdef CONFIG_QETH_VLAN - u16 *vlan_tag; - - if (hdr->hdr.l3.ext_flags & - (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) { - vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN); - *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)? - hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]); - *(vlan_tag + 1) = skb->protocol; - skb->protocol = __constant_htons(ETH_P_8021Q); - } -#endif /* CONFIG_QETH_VLAN */ -} - static inline __u16 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb, struct qeth_hdr *hdr) @@ -2510,15 +2494,16 @@ qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb, return vlan_id; } -static inline void +static inline __u16 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb, struct qeth_hdr *hdr) { + unsigned short vlan_id = 0; #ifdef CONFIG_QETH_IPV6 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) { skb->pkt_type = PACKET_HOST; skb->protocol = qeth_type_trans(skb, card->dev); - return; + return 0; } #endif /* CONFIG_QETH_IPV6 */ skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 : @@ -2540,7 +2525,13 @@ qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb, default: skb->pkt_type = PACKET_HOST; } - qeth_rebuild_skb_vlan(card, skb, hdr); + + 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)? + hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]); + } + if (card->options.fake_ll) qeth_rebuild_skb_fake_ll(card, skb, hdr); else @@ -2556,6 +2547,7 @@ qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb, else skb->ip_summed = SW_CHECKSUMMING; } + return vlan_id; } static inline void @@ -2568,20 +2560,20 @@ qeth_process_inbound_buffer(struct qeth_card *card, int offset; int rxrc; __u16 vlan_tag = 0; + __u16 *vlan_addr; /* get first element of current buffer */ element = (struct qdio_buffer_element *)&buf->buffer->element[0]; offset = 0; -#ifdef CONFIG_QETH_PERF_STATS - card->perf_stats.bufs_rec++; -#endif + if (card->options.performance_stats) + card->perf_stats.bufs_rec++; while((skb = qeth_get_next_skb(card, buf->buffer, &element, &offset, &hdr))) { skb->dev = card->dev; if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2) vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr); else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3) - qeth_rebuild_skb(card, skb, hdr); + vlan_tag = qeth_rebuild_skb(card, skb, hdr); else { /*in case of OSN*/ skb_push(skb, sizeof(struct qeth_hdr)); memcpy(skb->data, hdr, sizeof(struct qeth_hdr)); @@ -2591,14 +2583,19 @@ qeth_process_inbound_buffer(struct qeth_card *card, dev_kfree_skb_any(skb); continue; } + if (card->info.type == QETH_CARD_TYPE_OSN) + rxrc = card->osn_info.data_cb(skb); + else #ifdef CONFIG_QETH_VLAN if (vlan_tag) - vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag); + if (card->vlangrp) + vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag); + else { + dev_kfree_skb_any(skb); + continue; + } else #endif - if (card->info.type == QETH_CARD_TYPE_OSN) - rxrc = card->osn_info.data_cb(skb); - else rxrc = netif_rx(skb); card->dev->last_rx = jiffies; card->stats.rx_packets++; @@ -2626,7 +2623,7 @@ qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf) { struct qeth_buffer_pool_entry *pool_entry; int i; - + pool_entry = qeth_get_buffer_pool_entry(card); /* * since the buffer is accessed only from the input_tasklet @@ -2700,17 +2697,18 @@ qeth_queue_input_buffer(struct qeth_card *card, int index) * 'index') un-requeued -> this buffer is the first buffer that * will be requeued the next time */ -#ifdef CONFIG_QETH_PERF_STATS - card->perf_stats.inbound_do_qdio_cnt++; - card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros(); -#endif + if (card->options.performance_stats) { + card->perf_stats.inbound_do_qdio_cnt++; + card->perf_stats.inbound_do_qdio_start_time = + qeth_get_micros(); + } rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT, 0, queue->next_buf_to_init, count, NULL); -#ifdef CONFIG_QETH_PERF_STATS - card->perf_stats.inbound_do_qdio_time += qeth_get_micros() - - card->perf_stats.inbound_do_qdio_start_time; -#endif + if (card->options.performance_stats) + card->perf_stats.inbound_do_qdio_time += + 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", @@ -2746,10 +2744,10 @@ qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status, QETH_DBF_TEXT(trace, 6, "qdinput"); card = (struct qeth_card *) card_ptr; net_dev = card->dev; -#ifdef CONFIG_QETH_PERF_STATS - card->perf_stats.inbound_cnt++; - card->perf_stats.inbound_start_time = qeth_get_micros(); -#endif + if (card->options.performance_stats) { + card->perf_stats.inbound_cnt++; + card->perf_stats.inbound_start_time = qeth_get_micros(); + } if (status & QDIO_STATUS_LOOK_FOR_ERROR) { if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){ QETH_DBF_TEXT(trace, 1,"qdinchk"); @@ -2771,10 +2769,9 @@ qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status, qeth_put_buffer_pool_entry(card, buffer->pool_entry); qeth_queue_input_buffer(card, index); } -#ifdef CONFIG_QETH_PERF_STATS - card->perf_stats.inbound_time += qeth_get_micros() - - card->perf_stats.inbound_start_time; -#endif + if (card->options.performance_stats) + card->perf_stats.inbound_time += qeth_get_micros() - + card->perf_stats.inbound_start_time; } static inline int @@ -2864,10 +2861,11 @@ qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int, } queue->card->dev->trans_start = jiffies; -#ifdef CONFIG_QETH_PERF_STATS - queue->card->perf_stats.outbound_do_qdio_cnt++; - queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros(); -#endif + if (queue->card->options.performance_stats) { + queue->card->perf_stats.outbound_do_qdio_cnt++; + queue->card->perf_stats.outbound_do_qdio_start_time = + qeth_get_micros(); + } if (under_int) rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT, @@ -2875,10 +2873,10 @@ qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int, else rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT, queue->queue_no, index, count, NULL); -#ifdef CONFIG_QETH_PERF_STATS - queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() - - queue->card->perf_stats.outbound_do_qdio_start_time; -#endif + if (queue->card->options.performance_stats) + queue->card->perf_stats.outbound_do_qdio_time += + qeth_get_micros() - + queue->card->perf_stats.outbound_do_qdio_start_time; if (rc){ QETH_DBF_TEXT(trace, 2, "flushbuf"); QETH_DBF_TEXT_(trace, 2, " err%d", rc); @@ -2890,9 +2888,8 @@ qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int, return; } atomic_add(count, &queue->used_buffers); -#ifdef CONFIG_QETH_PERF_STATS - queue->card->perf_stats.bufs_sent += count; -#endif + if (queue->card->options.performance_stats) + queue->card->perf_stats.bufs_sent += count; } /* @@ -2907,9 +2904,8 @@ qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue) >= QETH_HIGH_WATERMARK_PACK){ /* switch non-PACKING -> PACKING */ QETH_DBF_TEXT(trace, 6, "np->pack"); -#ifdef CONFIG_QETH_PERF_STATS - queue->card->perf_stats.sc_dp_p++; -#endif + if (queue->card->options.performance_stats) + queue->card->perf_stats.sc_dp_p++; queue->do_pack = 1; } } @@ -2932,9 +2928,8 @@ qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) <= QETH_LOW_WATERMARK_PACK) { /* switch PACKING -> non-PACKING */ QETH_DBF_TEXT(trace, 6, "pack->np"); -#ifdef CONFIG_QETH_PERF_STATS - queue->card->perf_stats.sc_p_dp++; -#endif + 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]; @@ -2946,7 +2941,7 @@ qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; - } + } } } return flush_count; @@ -3002,11 +2997,10 @@ qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) !atomic_read(&queue->set_pci_flags_count)) flush_cnt += qeth_flush_buffers_on_no_pci(queue); -#ifdef CONFIG_QETH_PERF_STATS - if (q_was_packing) + if (queue->card->options.performance_stats && + q_was_packing) queue->card->perf_stats.bufs_sent_pack += flush_cnt; -#endif if (flush_cnt) qeth_flush_buffers(queue, 1, index, flush_cnt); atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); @@ -3036,10 +3030,11 @@ qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status, return; } } -#ifdef CONFIG_QETH_PERF_STATS - card->perf_stats.outbound_handler_cnt++; - card->perf_stats.outbound_handler_start_time = qeth_get_micros(); -#endif + if (card->options.performance_stats) { + card->perf_stats.outbound_handler_cnt++; + card->perf_stats.outbound_handler_start_time = + 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 */ @@ -3058,10 +3053,9 @@ qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status, qeth_check_outbound_queue(queue); netif_wake_queue(queue->card->dev); -#ifdef CONFIG_QETH_PERF_STATS - card->perf_stats.outbound_handler_time += qeth_get_micros() - - card->perf_stats.outbound_handler_start_time; -#endif + if (card->options.performance_stats) + card->perf_stats.outbound_handler_time += qeth_get_micros() - + card->perf_stats.outbound_handler_start_time; } static void @@ -3185,13 +3179,14 @@ qeth_alloc_qdio_buffers(struct qeth_card *card) QETH_DBF_TEXT(setup, 2, "allcqdbf"); - if (card->qdio.state == QETH_QDIO_ALLOCATED) + if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED, + QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED) return 0; card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), GFP_KERNEL|GFP_DMA); if (!card->qdio.in_q) - return - ENOMEM; + 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)); @@ -3200,27 +3195,19 @@ qeth_alloc_qdio_buffers(struct qeth_card *card) card->qdio.in_q->bufs[i].buffer = &card->qdio.in_q->qdio_bufs[i]; /* inbound buffer pool */ - if (qeth_alloc_buffer_pool(card)){ - kfree(card->qdio.in_q); - return -ENOMEM; - } + if (qeth_alloc_buffer_pool(card)) + goto out_freeinq; /* outbound */ card->qdio.out_qs = kmalloc(card->qdio.no_out_queues * sizeof(struct qeth_qdio_out_q *), GFP_KERNEL); - if (!card->qdio.out_qs){ - qeth_free_buffer_pool(card); - return -ENOMEM; - } - for (i = 0; i < card->qdio.no_out_queues; ++i){ + 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), GFP_KERNEL|GFP_DMA); - if (!card->qdio.out_qs[i]){ - while (i > 0) - kfree(card->qdio.out_qs[--i]); - kfree(card->qdio.out_qs); - return -ENOMEM; - } + 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)); @@ -3237,8 +3224,19 @@ qeth_alloc_qdio_buffers(struct qeth_card *card) INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list); } } - card->qdio.state = QETH_QDIO_ALLOCATED; return 0; + +out_freeoutq: + while (i > 0) + kfree(card->qdio.out_qs[--i]); + kfree(card->qdio.out_qs); +out_freepool: + qeth_free_buffer_pool(card); +out_freeinq: + kfree(card->qdio.in_q); +out_nomem: + atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); + return -ENOMEM; } static void @@ -3247,7 +3245,8 @@ qeth_free_qdio_buffers(struct qeth_card *card) int i, j; QETH_DBF_TEXT(trace, 2, "freeqdbf"); - if (card->qdio.state == QETH_QDIO_UNINITIALIZED) + if (atomic_swap(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == + QETH_QDIO_UNINITIALIZED) return; kfree(card->qdio.in_q); /* inbound buffer pool */ @@ -3260,7 +3259,6 @@ qeth_free_qdio_buffers(struct qeth_card *card) kfree(card->qdio.out_qs[i]); } kfree(card->qdio.out_qs); - card->qdio.state = QETH_QDIO_UNINITIALIZED; } static void @@ -3282,7 +3280,7 @@ static void qeth_init_qdio_info(struct qeth_card *card) { QETH_DBF_TEXT(setup, 4, "intqdinf"); - card->qdio.state = QETH_QDIO_UNINITIALIZED; + 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; @@ -3345,7 +3343,7 @@ qeth_qdio_establish(struct qeth_card *card) struct qdio_buffer **in_sbal_ptrs; struct qdio_buffer **out_sbal_ptrs; int i, j, k; - int rc; + int rc = 0; QETH_DBF_TEXT(setup, 2, "qdioest"); @@ -3404,8 +3402,10 @@ qeth_qdio_establish(struct qeth_card *card) init_data.input_sbal_addr_array = (void **) in_sbal_ptrs; init_data.output_sbal_addr_array = (void **) out_sbal_ptrs; - if (!(rc = qdio_initialize(&init_data))) - card->qdio.state = QETH_QDIO_ESTABLISHED; + if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED, + QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) + if ((rc = qdio_initialize(&init_data))) + atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); kfree(out_sbal_ptrs); kfree(in_sbal_ptrs); @@ -3521,13 +3521,20 @@ qeth_qdio_clear_card(struct qeth_card *card, int use_halt) int rc = 0; QETH_DBF_TEXT(trace,3,"qdioclr"); - if (card->qdio.state == QETH_QDIO_ESTABLISHED){ + switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED, + QETH_QDIO_CLEANING)) { + case QETH_QDIO_ESTABLISHED: if ((rc = qdio_cleanup(CARD_DDEV(card), - (card->info.type == QETH_CARD_TYPE_IQD) ? - QDIO_FLAG_CLEANUP_USING_HALT : - QDIO_FLAG_CLEANUP_USING_CLEAR))) + (card->info.type == QETH_CARD_TYPE_IQD) ? + QDIO_FLAG_CLEANUP_USING_HALT : + QDIO_FLAG_CLEANUP_USING_CLEAR))) QETH_DBF_TEXT_(trace, 3, "1err%d", rc); - card->qdio.state = QETH_QDIO_ALLOCATED; + atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); + break; + case QETH_QDIO_CLEANING: + return rc; + default: + break; } if ((rc = qeth_clear_halt_card(card, use_halt))) QETH_DBF_TEXT_(trace, 3, "2err%d", rc); @@ -3687,10 +3694,10 @@ qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) /* return OK; otherwise ksoftirqd goes to 100% */ return NETDEV_TX_OK; } -#ifdef CONFIG_QETH_PERF_STATS - card->perf_stats.outbound_cnt++; - card->perf_stats.outbound_start_time = qeth_get_micros(); -#endif + if (card->options.performance_stats) { + card->perf_stats.outbound_cnt++; + card->perf_stats.outbound_start_time = qeth_get_micros(); + } netif_stop_queue(dev); if ((rc = qeth_send_packet(card, skb))) { if (rc == -EBUSY) { @@ -3704,10 +3711,9 @@ qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) } } netif_wake_queue(dev); -#ifdef CONFIG_QETH_PERF_STATS - card->perf_stats.outbound_time += qeth_get_micros() - - card->perf_stats.outbound_start_time; -#endif + if (card->options.performance_stats) + card->perf_stats.outbound_time += qeth_get_micros() - + card->perf_stats.outbound_start_time; return rc; } @@ -3922,49 +3928,59 @@ qeth_get_ip_version(struct sk_buff *skb) } } -static inline int -qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb, - struct qeth_hdr **hdr, int ipv) +static inline struct qeth_hdr * +__qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv) { - int rc = 0; #ifdef CONFIG_QETH_VLAN u16 *tag; -#endif - - QETH_DBF_TEXT(trace, 6, "prepskb"); - if (card->info.type == QETH_CARD_TYPE_OSN) { - *hdr = (struct qeth_hdr *)(*skb)->data; - return rc; - } - rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr)); - if (rc) - return rc; -#ifdef CONFIG_QETH_VLAN - if (card->vlangrp && vlan_tx_tag_present(*skb) && + if (card->vlangrp && vlan_tx_tag_present(skb) && ((ipv == 6) || card->options.layer2) ) { /* * Move the mac addresses (6 bytes src, 6 bytes dest) * to the beginning of the new header. We are using three * memcpys instead of one memmove to save cycles. */ - skb_push(*skb, VLAN_HLEN); - memcpy((*skb)->data, (*skb)->data + 4, 4); - memcpy((*skb)->data + 4, (*skb)->data + 8, 4); - memcpy((*skb)->data + 8, (*skb)->data + 12, 4); - tag = (u16 *)((*skb)->data + 12); + skb_push(skb, VLAN_HLEN); + memcpy(skb->data, skb->data + 4, 4); + memcpy(skb->data + 4, skb->data + 8, 4); + memcpy(skb->data + 8, skb->data + 12, 4); + tag = (u16 *)(skb->data + 12); /* * first two bytes = ETH_P_8021Q (0x8100) * second two bytes = VLANID */ *tag = __constant_htons(ETH_P_8021Q); - *(tag + 1) = htons(vlan_tx_tag_get(*skb)); + *(tag + 1) = htons(vlan_tx_tag_get(skb)); } #endif - *hdr = (struct qeth_hdr *) - qeth_push_skb(card, skb, sizeof(struct qeth_hdr)); - if (*hdr == NULL) - return -EINVAL; - return 0; + return ((struct qeth_hdr *) + qeth_push_skb(card, skb, sizeof(struct qeth_hdr))); +} + +static inline void +__qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb) +{ + if (orig_skb != new_skb) + dev_kfree_skb_any(new_skb); +} + +static inline struct sk_buff * +qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, + struct qeth_hdr **hdr, int ipv) +{ + struct sk_buff *new_skb; + + QETH_DBF_TEXT(trace, 6, "prepskb"); + + new_skb = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr)); + if (new_skb == NULL) + return NULL; + *hdr = __qeth_prepare_skb(card, new_skb, ipv); + if (*hdr == NULL) { + __qeth_free_new_skb(skb, new_skb); + return NULL; + } + return new_skb; } static inline u8 @@ -4206,9 +4222,8 @@ qeth_fill_buffer(struct qeth_qdio_out_q *queue, flush_cnt = 1; } else { QETH_DBF_TEXT(trace, 6, "fillbfpa"); -#ifdef CONFIG_QETH_PERF_STATS - queue->card->perf_stats.skbs_sent_pack++; -#endif + if (queue->card->options.performance_stats) + queue->card->perf_stats.skbs_sent_pack++; if (buf->next_element_to_fill >= QETH_MAX_BUFFER_ELEMENTS(queue->card)) { /* @@ -4245,21 +4260,15 @@ qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue, * 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) { - card->stats.tx_dropped++; - atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); - return -EBUSY; - } + 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) % QDIO_MAX_BUFFERS_PER_Q; else { buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx); - if (buffers_needed < 0) { - card->stats.tx_dropped++; - atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); - return -EBUSY; - } + if (buffers_needed < 0) + goto out; queue->next_buf_to_fill = (queue->next_buf_to_fill + buffers_needed) % QDIO_MAX_BUFFERS_PER_Q; @@ -4274,6 +4283,9 @@ qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue, qeth_flush_buffers(queue, 0, index, flush_cnt); } return 0; +out: + atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); + return -EBUSY; } static inline int @@ -4299,8 +4311,7 @@ qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, * 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){ - card->stats.tx_dropped++; + if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) { atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); return -EBUSY; } @@ -4323,7 +4334,6 @@ qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, * again */ if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){ - card->stats.tx_dropped++; qeth_flush_buffers(queue, 0, start_index, flush_count); atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); return -EBUSY; @@ -4334,7 +4344,6 @@ qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, * free buffers) to handle eddp context */ if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){ printk("eddp tx_dropped 1\n"); - card->stats.tx_dropped++; rc = -EBUSY; goto out; } @@ -4346,7 +4355,6 @@ qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill); if (tmp < 0) { printk("eddp tx_dropped 2\n"); - card->stats.tx_dropped++; rc = - EBUSY; goto out; } @@ -4380,10 +4388,8 @@ out: qeth_flush_buffers(queue, 0, start_index, flush_count); } /* at this point the queue is UNLOCKED again */ -#ifdef CONFIG_QETH_PERF_STATS - if (do_pack) + if (queue->card->options.performance_stats && do_pack) queue->card->perf_stats.bufs_sent_pack += flush_count; -#endif /* CONFIG_QETH_PERF_STATS */ return rc; } @@ -4394,21 +4400,21 @@ qeth_get_elements_no(struct qeth_card *card, void *hdr, { int elements_needed = 0; - if (skb_shinfo(skb)->nr_frags > 0) { + if (skb_shinfo(skb)->nr_frags > 0) elements_needed = (skb_shinfo(skb)->nr_frags + 1); - } - if (elements_needed == 0 ) + if (elements_needed == 0) elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE) + skb->len) >> PAGE_SHIFT); if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){ - PRINT_ERR("qeth_do_send_packet: invalid size of " - "IP packet (Number=%d / Length=%d). Discarded.\n", + PRINT_ERR("Invalid size of IP packet " + "(Number=%d / Length=%d). Discarded.\n", (elements_needed+elems), skb->len); return 0; } return elements_needed; } + static inline int qeth_send_packet(struct qeth_card *card, struct sk_buff *skb) { @@ -4420,112 +4426,112 @@ qeth_send_packet(struct qeth_card *card, struct sk_buff *skb) enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO; struct qeth_eddp_context *ctx = NULL; int tx_bytes = skb->len; -#ifdef CONFIG_QETH_PERF_STATS unsigned short nr_frags = skb_shinfo(skb)->nr_frags; unsigned short tso_size = skb_shinfo(skb)->gso_size; -#endif + struct sk_buff *new_skb, *new_skb2; int rc; QETH_DBF_TEXT(trace, 6, "sendpkt"); + new_skb = skb; + if ((card->info.type == QETH_CARD_TYPE_OSN) && + (skb->protocol == htons(ETH_P_IPV6))) + return -EPERM; + cast_type = qeth_get_cast_type(card, skb); + if ((cast_type == RTN_BROADCAST) && + (card->info.broadcast_capable == 0)) + return -EPERM; + queue = card->qdio.out_qs + [qeth_get_priority_queue(card, skb, ipv, cast_type)]; if (!card->options.layer2) { ipv = qeth_get_ip_version(skb); if ((card->dev->hard_header == qeth_fake_header) && ipv) { - if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) { - card->stats.tx_dropped++; - dev_kfree_skb_irq(skb); - return 0; - } + new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC); + if (!new_skb) + return -ENOMEM; if(card->dev->type == ARPHRD_IEEE802_TR){ - skb_pull(skb, QETH_FAKE_LL_LEN_TR); + skb_pull(new_skb, QETH_FAKE_LL_LEN_TR); } else { - skb_pull(skb, QETH_FAKE_LL_LEN_ETH); + skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH); } } } - if ((card->info.type == QETH_CARD_TYPE_OSN) && - (skb->protocol == htons(ETH_P_IPV6))) { - dev_kfree_skb_any(skb); - return 0; - } - cast_type = qeth_get_cast_type(card, skb); - if ((cast_type == RTN_BROADCAST) && - (card->info.broadcast_capable == 0)){ - card->stats.tx_dropped++; - card->stats.tx_errors++; - dev_kfree_skb_any(skb); - return NETDEV_TX_OK; - } - queue = card->qdio.out_qs - [qeth_get_priority_queue(card, skb, ipv, cast_type)]; - if (skb_is_gso(skb)) large_send = card->options.large_send; - - /*are we able to do TSO ? If so ,prepare and send it from here */ + /* check on OSN device*/ + if (card->info.type == QETH_CARD_TYPE_OSN) + hdr = (struct qeth_hdr *)new_skb->data; + /*are we able to do TSO ? */ if ((large_send == QETH_LARGE_SEND_TSO) && (cast_type == RTN_UNSPEC)) { - rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type); + rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type); if (rc) { - card->stats.tx_dropped++; - card->stats.tx_errors++; - dev_kfree_skb_any(skb); - return NETDEV_TX_OK; + __qeth_free_new_skb(skb, new_skb); + return rc; } elements_needed++; - } else { - if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) { - QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc); - return rc; + } else if (card->info.type != QETH_CARD_TYPE_OSN) { + new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv); + if (!new_skb2) { + __qeth_free_new_skb(skb, new_skb); + return -EINVAL; } - if (card->info.type != QETH_CARD_TYPE_OSN) - qeth_fill_header(card, hdr, skb, ipv, cast_type); + if (new_skb != skb) + __qeth_free_new_skb(new_skb2, new_skb); + new_skb = new_skb2; + qeth_fill_header(card, hdr, new_skb, ipv, cast_type); } - if (large_send == QETH_LARGE_SEND_EDDP) { - ctx = qeth_eddp_create_context(card, skb, hdr); + ctx = qeth_eddp_create_context(card, new_skb, hdr); if (ctx == NULL) { + __qeth_free_new_skb(skb, new_skb); PRINT_WARN("could not create eddp context\n"); return -EINVAL; } } else { - int elems = qeth_get_elements_no(card,(void*) hdr, skb, + int elems = qeth_get_elements_no(card,(void*) hdr, new_skb, elements_needed); - if (!elems) + if (!elems) { + __qeth_free_new_skb(skb, new_skb); return -EINVAL; + } elements_needed += elems; } if (card->info.type != QETH_CARD_TYPE_IQD) - rc = qeth_do_send_packet(card, queue, skb, hdr, + rc = qeth_do_send_packet(card, queue, new_skb, hdr, elements_needed, ctx); else - rc = qeth_do_send_packet_fast(card, queue, skb, hdr, + rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, elements_needed, ctx); - if (!rc){ + if (!rc) { card->stats.tx_packets++; card->stats.tx_bytes += tx_bytes; -#ifdef CONFIG_QETH_PERF_STATS - if (tso_size && - !(large_send == QETH_LARGE_SEND_NO)) { - card->perf_stats.large_send_bytes += tx_bytes; - card->perf_stats.large_send_cnt++; - } - if (nr_frags > 0){ - card->perf_stats.sg_skbs_sent++; - /* nr_frags + skb->data */ - card->perf_stats.sg_frags_sent += - nr_frags + 1; + if (new_skb != skb) + dev_kfree_skb_any(skb); + if (card->options.performance_stats) { + if (tso_size && + !(large_send == QETH_LARGE_SEND_NO)) { + card->perf_stats.large_send_bytes += tx_bytes; + card->perf_stats.large_send_cnt++; + } + if (nr_frags > 0) { + card->perf_stats.sg_skbs_sent++; + /* nr_frags + skb->data */ + card->perf_stats.sg_frags_sent += + nr_frags + 1; + } } -#endif /* CONFIG_QETH_PERF_STATS */ + } else { + card->stats.tx_dropped++; + __qeth_free_new_skb(skb, new_skb); } if (ctx != NULL) { /* drop creator's reference */ qeth_eddp_put_context(ctx); /* free skb; it's not referenced by a buffer */ - if (rc == 0) - dev_kfree_skb_any(skb); - + if (!rc) + dev_kfree_skb_any(new_skb); } return rc; } @@ -7338,6 +7344,8 @@ qeth_setrouting_v6(struct qeth_card *card) QETH_DBF_TEXT(trace,3,"setrtg6"); #ifdef CONFIG_QETH_IPV6 + if (!qeth_is_supported(card, IPA_IPV6)) + return 0; qeth_correct_routing_type(card, &card->options.route6.type, QETH_PROT_IPV6); @@ -7876,12 +7884,12 @@ __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode) QETH_DBF_TEXT_(setup, 2, "5err%d", rc); goto out_remove; } - card->state = CARD_STATE_SOFTSETUP; if ((rc = qeth_init_qdio_queues(card))){ QETH_DBF_TEXT_(setup, 2, "6err%d", rc); goto out_remove; } + card->state = CARD_STATE_SOFTSETUP; netif_carrier_on(card->dev); qeth_set_allowed_threads(card, 0xffffffff, 0); @@ -8538,34 +8546,44 @@ qeth_ipv6_uninit(void) static void qeth_sysfs_unregister(void) { + s390_root_dev_unregister(qeth_root_dev); qeth_remove_driver_attributes(); ccw_driver_unregister(&qeth_ccw_driver); ccwgroup_driver_unregister(&qeth_ccwgroup_driver); - s390_root_dev_unregister(qeth_root_dev); } + /** * register qeth at sysfs */ static int qeth_sysfs_register(void) { - int rc=0; + int rc; rc = ccwgroup_driver_register(&qeth_ccwgroup_driver); if (rc) - return rc; + goto out; + rc = ccw_driver_register(&qeth_ccw_driver); if (rc) - return rc; + goto out_ccw_driver; + rc = qeth_create_driver_attributes(); if (rc) - return rc; + goto out_qeth_attr; + qeth_root_dev = s390_root_dev_register("qeth"); - if (IS_ERR(qeth_root_dev)) { - rc = PTR_ERR(qeth_root_dev); - return rc; - } - return 0; + rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0; + if (!rc) + goto out; + + qeth_remove_driver_attributes(); +out_qeth_attr: + ccw_driver_unregister(&qeth_ccw_driver); +out_ccw_driver: + ccwgroup_driver_unregister(&qeth_ccwgroup_driver); +out: + return rc; } /*** @@ -8574,7 +8592,7 @@ qeth_sysfs_register(void) static int __init qeth_init(void) { - int rc=0; + int rc; PRINT_INFO("loading %s\n", version); @@ -8583,20 +8601,26 @@ qeth_init(void) spin_lock_init(&qeth_notify_lock); rwlock_init(&qeth_card_list.rwlock); - if (qeth_register_dbf_views()) + rc = qeth_register_dbf_views(); + if (rc) goto out_err; - if (qeth_sysfs_register()) - goto out_sysfs; + + rc = qeth_sysfs_register(); + if (rc) + goto out_dbf; #ifdef CONFIG_QETH_IPV6 - if (qeth_ipv6_init()) { - PRINT_ERR("Out of memory during ipv6 init.\n"); + rc = qeth_ipv6_init(); + if (rc) { + PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc); goto out_sysfs; } #endif /* QETH_IPV6 */ - if (qeth_register_notifiers()) + rc = qeth_register_notifiers(); + if (rc) goto out_ipv6; - if (qeth_create_procfs_entries()) + rc = qeth_create_procfs_entries(); + if (rc) goto out_notifiers; return rc; @@ -8606,12 +8630,13 @@ out_notifiers: out_ipv6: #ifdef CONFIG_QETH_IPV6 qeth_ipv6_uninit(); -#endif /* QETH_IPV6 */ out_sysfs: +#endif /* QETH_IPV6 */ qeth_sysfs_unregister(); +out_dbf: qeth_unregister_dbf_views(); out_err: - PRINT_ERR("Initialization failed"); + PRINT_ERR("Initialization failed with code %d\n", rc); return rc; } diff --git a/drivers/s390/net/qeth_proc.c b/drivers/s390/net/qeth_proc.c index 66f2da14e6e..faa768e5925 100644 --- a/drivers/s390/net/qeth_proc.c +++ b/drivers/s390/net/qeth_proc.c @@ -173,7 +173,6 @@ static struct file_operations qeth_procfile_fops = { #define QETH_PERF_PROCFILE_NAME "qeth_perf" static struct proc_dir_entry *qeth_perf_procfile; -#ifdef CONFIG_QETH_PERF_STATS static int qeth_perf_procfile_seq_show(struct seq_file *s, void *it) { @@ -192,14 +191,21 @@ qeth_perf_procfile_seq_show(struct seq_file *s, void *it) CARD_DDEV_ID(card), QETH_CARD_IFNAME(card) ); + if (!card->options.performance_stats) + seq_printf(s, "Performance statistics are deactivated.\n"); seq_printf(s, " Skb's/buffers received : %lu/%u\n" " Skb's/buffers sent : %lu/%u\n\n", - card->stats.rx_packets, card->perf_stats.bufs_rec, - card->stats.tx_packets, card->perf_stats.bufs_sent + card->stats.rx_packets - + card->perf_stats.initial_rx_packets, + card->perf_stats.bufs_rec, + card->stats.tx_packets - + card->perf_stats.initial_tx_packets, + card->perf_stats.bufs_sent ); seq_printf(s, " Skb's/buffers sent without packing : %lu/%u\n" " Skb's/buffers sent with packing : %u/%u\n\n", - card->stats.tx_packets - card->perf_stats.skbs_sent_pack, + card->stats.tx_packets - card->perf_stats.initial_tx_packets + - card->perf_stats.skbs_sent_pack, card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack, card->perf_stats.skbs_sent_pack, card->perf_stats.bufs_sent_pack @@ -275,11 +281,6 @@ static struct file_operations qeth_perf_procfile_fops = { .release = seq_release, }; -#define qeth_perf_procfile_created qeth_perf_procfile -#else -#define qeth_perf_procfile_created 1 -#endif /* CONFIG_QETH_PERF_STATS */ - int __init qeth_create_procfs_entries(void) { @@ -288,15 +289,13 @@ qeth_create_procfs_entries(void) if (qeth_procfile) qeth_procfile->proc_fops = &qeth_procfile_fops; -#ifdef CONFIG_QETH_PERF_STATS qeth_perf_procfile = create_proc_entry(QETH_PERF_PROCFILE_NAME, S_IFREG | 0444, NULL); if (qeth_perf_procfile) qeth_perf_procfile->proc_fops = &qeth_perf_procfile_fops; -#endif /* CONFIG_QETH_PERF_STATS */ if (qeth_procfile && - qeth_perf_procfile_created) + qeth_perf_procfile) return 0; else return -ENOMEM; diff --git a/drivers/s390/net/qeth_sys.c b/drivers/s390/net/qeth_sys.c index 001497bbea1..5836737ac58 100644 --- a/drivers/s390/net/qeth_sys.c +++ b/drivers/s390/net/qeth_sys.c @@ -743,6 +743,47 @@ static DEVICE_ATTR(layer2, 0644, qeth_dev_layer2_show, qeth_dev_layer2_store); static ssize_t +qeth_dev_performance_stats_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct qeth_card *card = dev->driver_data; + + if (!card) + return -EINVAL; + + return sprintf(buf, "%i\n", card->options.performance_stats ? 1:0); +} + +static ssize_t +qeth_dev_performance_stats_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct qeth_card *card = dev->driver_data; + char *tmp; + int i; + + if (!card) + return -EINVAL; + + i = simple_strtoul(buf, &tmp, 16); + if ((i == 0) || (i == 1)) { + if (i == card->options.performance_stats) + return count; + 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 { + PRINT_WARN("performance_stats: write 0 or 1 to this file!\n"); + return -EINVAL; + } + return count; +} + +static DEVICE_ATTR(performance_stats, 0644, qeth_dev_performance_stats_show, + qeth_dev_performance_stats_store); + +static ssize_t qeth_dev_large_send_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; @@ -928,6 +969,7 @@ static struct device_attribute * qeth_device_attrs[] = { &dev_attr_canonical_macaddr, &dev_attr_layer2, &dev_attr_large_send, + &dev_attr_performance_stats, NULL, }; @@ -1110,12 +1152,12 @@ qeth_parse_ipatoe(const char* buf, enum qeth_prot_versions proto, { const char *start, *end; char *tmp; - char buffer[49] = {0, }; + char buffer[40] = {0, }; start = buf; /* get address string */ end = strchr(start, '/'); - if (!end || (end-start >= 49)){ + if (!end || (end - start >= 40)){ PRINT_WARN("Invalid format for ipato_addx/delx. " "Use <ip addr>/<mask bits>\n"); return -EINVAL; @@ -1127,7 +1169,12 @@ qeth_parse_ipatoe(const char* buf, enum qeth_prot_versions proto, } start = end + 1; *mask_bits = simple_strtoul(start, &tmp, 10); - + if (!strlen(start) || + (tmp == start) || + (*mask_bits > ((proto == QETH_PROT_IPV4) ? 32 : 128))) { + PRINT_WARN("Invalid mask bits for ipato_addx/delx !\n"); + return -EINVAL; + } return 0; } @@ -1698,11 +1745,16 @@ qeth_create_device_attributes(struct device *dev) sysfs_remove_group(&dev->kobj, &qeth_device_attr_group); sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group); sysfs_remove_group(&dev->kobj, &qeth_device_vipa_group); + return ret; } - if ((ret = sysfs_create_group(&dev->kobj, &qeth_device_blkt_group))) + if ((ret = sysfs_create_group(&dev->kobj, &qeth_device_blkt_group))){ + sysfs_remove_group(&dev->kobj, &qeth_device_attr_group); + sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group); + sysfs_remove_group(&dev->kobj, &qeth_device_vipa_group); + sysfs_remove_group(&dev->kobj, &qeth_device_rxip_group); return ret; - - return ret; + } + return 0; } void diff --git a/drivers/s390/net/qeth_tso.h b/drivers/s390/net/qeth_tso.h index 593f298142c..14504afb044 100644 --- a/drivers/s390/net/qeth_tso.h +++ b/drivers/s390/net/qeth_tso.h @@ -24,7 +24,7 @@ static inline struct qeth_hdr_tso * qeth_tso_prepare_skb(struct qeth_card *card, struct sk_buff **skb) { QETH_DBF_TEXT(trace, 5, "tsoprsk"); - return qeth_push_skb(card, skb, sizeof(struct qeth_hdr_tso)); + return qeth_push_skb(card, *skb, sizeof(struct qeth_hdr_tso)); } /** diff --git a/drivers/sbus/char/openprom.c b/drivers/sbus/char/openprom.c index 293bb2fdb1d..2f698763ba5 100644 --- a/drivers/sbus/char/openprom.c +++ b/drivers/sbus/char/openprom.c @@ -145,8 +145,9 @@ static int opromgetprop(void __user *argp, struct device_node *dp, struct openpr void *pval; int len; - pval = of_get_property(dp, op->oprom_array, &len); - if (!pval || len <= 0 || len > bufsize) + if (!dp || + !(pval = of_get_property(dp, op->oprom_array, &len)) || + len <= 0 || len > bufsize) return copyout(argp, op, sizeof(int)); memcpy(op->oprom_array, pval, len); @@ -161,6 +162,8 @@ static int opromnxtprop(void __user *argp, struct device_node *dp, struct openpr struct property *prop; int len; + if (!dp) + return copyout(argp, op, sizeof(int)); if (op->oprom_array[0] == '\0') { prop = dp->properties; if (!prop) @@ -266,9 +269,13 @@ static int oprompci2node(void __user *argp, struct device_node *dp, struct openp static int oprompath2node(void __user *argp, struct device_node *dp, struct openpromio *op, int bufsize, DATA *data) { + phandle ph = 0; + dp = of_find_node_by_path(op->oprom_array); + if (dp) + ph = dp->node; data->current_node = dp; - *((int *)op->oprom_array) = dp->node; + *((int *)op->oprom_array) = ph; op->oprom_size = sizeof(int); return copyout(argp, op, bufsize + sizeof(int)); diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index a8ed5a22009..3d355d05461 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -466,7 +466,7 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd, struct scsi_device *sdev = scmd->device; struct Scsi_Host *shost = sdev->host; int old_result = scmd->result; - DECLARE_COMPLETION(done); + DECLARE_COMPLETION_ONSTACK(done); unsigned long timeleft; unsigned long flags; unsigned char old_cmnd[MAX_COMMAND_SIZE]; diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c index 392bffcf96e..95738a19cde 100644 --- a/drivers/serial/s3c2410.c +++ b/drivers/serial/s3c2410.c @@ -1621,7 +1621,7 @@ static struct s3c24xx_uart_info s3c2412_uart_inf = { static int s3c2412_serial_probe(struct platform_device *dev) { dbg("s3c2440_serial_probe: dev=%p\n", dev); - return s3c24xx_serial_probe(dev, &s3c2440_uart_inf); + return s3c24xx_serial_probe(dev, &s3c2412_uart_inf); } static struct platform_driver s3c2412_serial_drv = { |