Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git

1 files changed, 49 insertions, 124 deletions

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 579448222d69..0b12498b7672 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -36,27 +36,12 @@ char qla2x00_version_str[40];
 /*
  * SRB allocation cache
  */
-char srb_cachep_name[16];
-kmem_cache_t *srb_cachep;
-
-/*
- * Stats for all adpaters.
- */
-struct _qla2x00stats qla2x00_stats;
+static kmem_cache_t *srb_cachep;
 
 /*
  * Ioctl related information.
  */
-int num_hosts;
-int apiHBAInstance;
-
-/*
- * Module parameter information and variables
- */
-int ql2xmaxqdepth;
-module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(ql2xmaxqdepth,
-                "Maximum queue depth to report for target devices.");
+static int num_hosts;
 
 int ql2xlogintimeout = 20;
 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
@@ -69,12 +54,6 @@ MODULE_PARM_DESC(qlport_down_retry,
                 "Maximum number of command retries to a port that returns"
                 "a PORT-DOWN status.");
 
-int ql2xretrycount = 20;
-module_param(ql2xretrycount, int, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(ql2xretrycount,
-                "Maximum number of mid-layer retries allowed for a command.  "
-                "Default value is 20, ");
-
 int ql2xplogiabsentdevice;
 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(ql2xplogiabsentdevice,
@@ -95,25 +74,6 @@ MODULE_PARM_DESC(ql2xintrdelaytimer,
                 "ZIO: Waiting time for Firmware before it generates an "
                 "interrupt to the host to notify completion of request.");
 
-int ConfigRequired;
-module_param(ConfigRequired, int, S_IRUGO|S_IRUSR);
-MODULE_PARM_DESC(ConfigRequired,
-                "If 1, then only configured devices passed in through the"
-                "ql2xopts parameter will be presented to the OS");
-
-int Bind = BIND_BY_PORT_NAME;
-module_param(Bind, int, S_IRUGO|S_IRUSR);
-MODULE_PARM_DESC(Bind,
-                "Target persistent binding method: "
-                "0 by Portname (default); 1 by PortID; 2 by Nodename. ");
-
-int ql2xsuspendcount = SUSPEND_COUNT;
-module_param(ql2xsuspendcount, int, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(ql2xsuspendcount,
-                "Number of 6-second suspend iterations to perform while a "
-                "target returns a <NOT READY> status.  Default is 10 "
-                "iterations.");
-
 int ql2xloginretrycount = 0;
 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
 MODULE_PARM_DESC(ql2xloginretrycount,
@@ -330,7 +290,6 @@ qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
         sp->fcport = fcport;
         sp->cmd = cmd;
         sp->flags = 0;
-        sp->err_id = 0;
 
         CMD_SP(cmd) = (void *)sp;
         cmd->scsi_done = done;
@@ -474,7 +433,6 @@ qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
 
         while ((!atomic_read(&ha->loop_down_timer) &&
             atomic_read(&ha->loop_state) == LOOP_DOWN) ||
-            test_bit(CFG_ACTIVE, &ha->cfg_flags) ||
             atomic_read(&ha->loop_state) != LOOP_READY) {
                 msleep(1000);
                 if (time_after_eq(jiffies, loop_timeout)) {
@@ -507,6 +465,7 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
         int ret, i;
         unsigned int id, lun;
         unsigned long serial;
+        unsigned long flags;
 
         if (!CMD_SP(cmd))
                 return FAILED;
@@ -518,8 +477,7 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
         serial = cmd->serial_number;
 
         /* Check active list for command command. */
-        spin_unlock_irq(ha->host->host_lock);
-        spin_lock(&ha->hardware_lock);
+        spin_lock_irqsave(&ha->hardware_lock, flags);
         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
                 sp = ha->outstanding_cmds[i];
 
@@ -534,7 +492,7 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
                     sp->state));
                 DEBUG3(qla2x00_print_scsi_cmd(cmd);)
 
-                spin_unlock(&ha->hardware_lock);
+                spin_unlock_irqrestore(&ha->hardware_lock, flags);
                 if (qla2x00_abort_command(ha, sp)) {
                         DEBUG2(printk("%s(%ld): abort_command "
                             "mbx failed.\n", __func__, ha->host_no));
@@ -543,22 +501,20 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
                             "mbx success.\n", __func__, ha->host_no));
                         ret = SUCCESS;
                 }
-                spin_lock(&ha->hardware_lock);
+                spin_lock_irqsave(&ha->hardware_lock, flags);
 
                 break;
         }
+        spin_unlock_irqrestore(&ha->hardware_lock, flags);
 
         /* Wait for the command to be returned. */
         if (ret == SUCCESS) {
-                spin_unlock(&ha->hardware_lock);
                 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
                         qla_printk(KERN_ERR, ha, 
                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
                             "%x.\n", ha->host_no, id, lun, serial, ret);
                 }
-                spin_lock(&ha->hardware_lock);
         }
-        spin_lock_irq(ha->host->host_lock);
 
         qla_printk(KERN_INFO, ha, 
             "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha->host_no,
@@ -588,6 +544,7 @@ qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
         int     status;
         srb_t           *sp;
         struct scsi_cmnd *cmd;
+        unsigned long flags;
 
         status = 0;
 
@@ -596,11 +553,11 @@ qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
          * array
          */
         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
-                spin_lock(&ha->hardware_lock);
+                spin_lock_irqsave(&ha->hardware_lock, flags);
                 sp = ha->outstanding_cmds[cnt];
                 if (sp) {
                         cmd = sp->cmd;
-                        spin_unlock(&ha->hardware_lock);
+                        spin_unlock_irqrestore(&ha->hardware_lock, flags);
                         if (cmd->device->id == t) {
                                 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
                                         status = 1;
@@ -608,7 +565,7 @@ qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
                                 }
                         }
                 } else {
-                        spin_unlock(&ha->hardware_lock);
+                        spin_unlock_irqrestore(&ha->hardware_lock, flags);
                 }
         }
         return (status);
@@ -657,12 +614,8 @@ qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
         qla_printk(KERN_INFO, ha,
             "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
 
-        spin_unlock_irq(ha->host->host_lock);
-
-        if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
-                spin_lock_irq(ha->host->host_lock);
+        if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
                 goto eh_dev_reset_done;
-        }
 
         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
                 if (qla2x00_device_reset(ha, fcport) == 0)
@@ -713,8 +666,6 @@ qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
             "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no, id, lun);
 
 eh_dev_reset_done:
-        spin_lock_irq(ha->host->host_lock);
-
         return ret;
 }
 
@@ -740,6 +691,7 @@ qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
         int     status;
         srb_t           *sp;
         struct scsi_cmnd *cmd;
+        unsigned long flags;
 
         status = 1;
 
@@ -748,17 +700,17 @@ qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
          * array
          */
         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
-                spin_lock(&ha->hardware_lock);
+                spin_lock_irqsave(&ha->hardware_lock, flags);
                 sp = ha->outstanding_cmds[cnt];
                 if (sp) {
                         cmd = sp->cmd;
-                        spin_unlock(&ha->hardware_lock);
+                        spin_unlock_irqrestore(&ha->hardware_lock, flags);
                         status = qla2x00_eh_wait_on_command(ha, cmd);
                         if (status == 0)
                                 break;
                 }
                 else {
-                        spin_unlock(&ha->hardware_lock);
+                        spin_unlock_irqrestore(&ha->hardware_lock, flags);
                 }
         }
         return (status);
@@ -803,8 +755,6 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
         qla_printk(KERN_INFO, ha,
             "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
 
-        spin_unlock_irq(ha->host->host_lock);
-
         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
                 DEBUG2(printk("%s failed:board disabled\n",__func__));
                 goto eh_bus_reset_done;
@@ -826,8 +776,6 @@ eh_bus_reset_done:
         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
             (ret == FAILED) ? "failed" : "succeded");
 
-        spin_lock_irq(ha->host->host_lock);
-
         return ret;
 }
 
@@ -869,8 +817,6 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
         qla_printk(KERN_INFO, ha,
             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
 
-        spin_unlock_irq(ha->host->host_lock);
-
         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
                 goto eh_host_reset_lock;
 
@@ -899,8 +845,6 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
                 ret = SUCCESS;
 
 eh_host_reset_lock:
-        spin_lock_irq(ha->host->host_lock);
-
         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
             (ret == FAILED) ? "failed" : "succeded");
 
@@ -1148,7 +1092,7 @@ iospace_error_exit:
  */
 int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
 {
-        int     ret;
+        int     ret = -ENODEV;
         device_reg_t __iomem *reg;
         struct Scsi_Host *host;
         scsi_qla_host_t *ha;
@@ -1159,7 +1103,7 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
         fc_port_t *fcport;
 
         if (pci_enable_device(pdev))
-                return -1;
+                goto probe_out;
 
         host = scsi_host_alloc(&qla2x00_driver_template,
             sizeof(scsi_qla_host_t));
@@ -1181,9 +1125,8 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
 
         /* Configure PCI I/O space */
         ret = qla2x00_iospace_config(ha);
-        if (ret != 0) {
-                goto probe_alloc_failed;
-        }
+        if (ret)
+                goto probe_failed;
 
         /* Sanitize the information from PCI BIOS. */
         host->irq = pdev->irq;
@@ -1194,34 +1137,24 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
 
         spin_lock_init(&ha->hardware_lock);
 
-        /* 4.23 Initialize /proc/scsi/qla2x00 counters */
-        ha->actthreads = 0;
-        ha->qthreads   = 0;
-        ha->total_isr_cnt = 0;
-        ha->total_isp_aborts = 0;
-        ha->total_lip_cnt = 0;
-        ha->total_dev_errs = 0;
-        ha->total_ios = 0;
-        ha->total_bytes = 0;
-
         ha->prev_topology = 0;
         ha->ports = MAX_BUSES;
 
         if (IS_QLA2100(ha)) {
-                ha->max_targets = MAX_TARGETS_2100;
+                host->max_id = MAX_TARGETS_2100;
                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
                 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
                 host->sg_tablesize = 32;
         } else if (IS_QLA2200(ha)) {
-                ha->max_targets = MAX_TARGETS_2200;
+                host->max_id = MAX_TARGETS_2200;
                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
         } else /*if (IS_QLA2300(ha))*/ {
-                ha->max_targets = MAX_TARGETS_2200;
+                host->max_id = MAX_TARGETS_2200;
                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
@@ -1256,23 +1189,10 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
                 qla_printk(KERN_WARNING, ha,
                     "[ERROR] Failed to allocate memory for adapter\n");
 
-                goto probe_alloc_failed;
+                ret = -ENOMEM;
+                goto probe_failed;
         }
 
-        pci_set_drvdata(pdev, ha);
-        host->this_id = 255;
-        host->cmd_per_lun = 3;
-        host->unique_id = ha->instance;
-        host->max_cmd_len = MAX_CMDSZ;
-        host->max_channel = ha->ports - 1;
-        host->max_id = ha->max_targets;
-        host->max_lun = ha->max_luns;
-        host->transportt = qla2xxx_transport_template;
-        if (scsi_add_host(host, &pdev->dev))
-                goto probe_alloc_failed;
-
-        qla2x00_alloc_sysfs_attr(ha);
-
         if (qla2x00_initialize_adapter(ha) &&
             !(ha->device_flags & DFLG_NO_CABLE)) {
 
@@ -1283,11 +1203,10 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
                     "Adapter flags %x.\n",
                     ha->host_no, ha->device_flags));
 
+                ret = -ENODEV;
                 goto probe_failed;
         }
 
-        qla2x00_init_host_attr(ha);
-
         /*
          * Startup the kernel thread for this host adapter
          */
@@ -1297,17 +1216,26 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
                 qla_printk(KERN_WARNING, ha,
                     "Unable to start DPC thread!\n");
 
+                ret = -ENODEV;
                 goto probe_failed;
         }
         wait_for_completion(&ha->dpc_inited);
 
+        host->this_id = 255;
+        host->cmd_per_lun = 3;
+        host->unique_id = ha->instance;
+        host->max_cmd_len = MAX_CMDSZ;
+        host->max_channel = ha->ports - 1;
+        host->max_lun = MAX_LUNS;
+        host->transportt = qla2xxx_transport_template;
+
         if (IS_QLA2100(ha) || IS_QLA2200(ha))
                 ret = request_irq(host->irq, qla2100_intr_handler,
                     SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha);
         else
                 ret = request_irq(host->irq, qla2300_intr_handler,
                     SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha);
-        if (ret != 0) {
+        if (ret) {
                 qla_printk(KERN_WARNING, ha,
                     "Failed to reserve interrupt %d already in use.\n",
                     host->irq);
@@ -1361,9 +1289,18 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
                 msleep(10);
         }
 
+        pci_set_drvdata(pdev, ha);
         ha->flags.init_done = 1;
         num_hosts++;
 
+        ret = scsi_add_host(host, &pdev->dev);
+        if (ret)
+                goto probe_failed;
+
+        qla2x00_alloc_sysfs_attr(ha);
+
+        qla2x00_init_host_attr(ha);
+
         qla_printk(KERN_INFO, ha, "\n"
             " QLogic Fibre Channel HBA Driver: %s\n"
             "  QLogic %s - %s\n"
@@ -1382,9 +1319,6 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
 probe_failed:
         fc_remove_host(ha->host);
 
-        scsi_remove_host(host);
-
-probe_alloc_failed:
         qla2x00_free_device(ha);
 
         scsi_host_put(host);
@@ -1392,7 +1326,8 @@ probe_alloc_failed:
 probe_disable_device:
         pci_disable_device(pdev);
 
-        return -1;
+probe_out:
+        return ret;
 }
 EXPORT_SYMBOL_GPL(qla2x00_probe_one);
 
@@ -2336,8 +2271,7 @@ static int __init
 qla2x00_module_init(void)
 {
         /* Allocate cache for SRBs. */
-        sprintf(srb_cachep_name, "qla2xxx_srbs");
-        srb_cachep = kmem_cache_create(srb_cachep_name, sizeof(srb_t), 0,
+        srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
             SLAB_HWCACHE_ALIGN, NULL, NULL);
         if (srb_cachep == NULL) {
                 printk(KERN_ERR
@@ -2365,16 +2299,7 @@ qla2x00_module_init(void)
 static void __exit
 qla2x00_module_exit(void)
 {
-        /* Free SRBs cache. */
-        if (srb_cachep != NULL) {
-                if (kmem_cache_destroy(srb_cachep) != 0) {
-                        printk(KERN_ERR
-                            "qla2xxx: Unable to free SRB cache...Memory pools "
-                            "still active?\n");
-                }
-                srb_cachep = NULL;
-        }
-
+        kmem_cache_destroy(srb_cachep);
         fc_release_transport(qla2xxx_transport_template);
 }