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path: root/drivers/scsi/qla4xxx/ql4_os.c
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Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_os.c')
-rw-r--r--drivers/scsi/qla4xxx/ql4_os.c109
1 files changed, 57 insertions, 52 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 370d40ff1529..f4cd846abf6d 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -167,8 +167,6 @@ static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session)
"of (%d) secs exhausted, marking device DEAD.\n",
ha->host_no, __func__, ddb_entry->fw_ddb_index,
QL4_SESS_RECOVERY_TMO));
-
- qla4xxx_wake_dpc(ha);
}
}
@@ -573,10 +571,6 @@ static void qla4xxx_mem_free(struct scsi_qla_host *ha)
if (ha->nx_pcibase)
iounmap(
(struct device_reg_82xx __iomem *)ha->nx_pcibase);
-
- if (ha->nx_db_wr_ptr)
- iounmap(
- (struct device_reg_82xx __iomem *)ha->nx_db_wr_ptr);
} else if (ha->reg)
iounmap(ha->reg);
pci_release_regions(ha->pdev);
@@ -692,7 +686,9 @@ static void qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
qla4xxx_wake_dpc(ha);
qla4xxx_mailbox_premature_completion(ha);
}
- }
+ } else
+ ha->seconds_since_last_heartbeat = 0;
+
ha->fw_heartbeat_counter = fw_heartbeat_counter;
}
@@ -885,7 +881,13 @@ static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
/* Find a command that hasn't completed. */
for (index = 0; index < ha->host->can_queue; index++) {
cmd = scsi_host_find_tag(ha->host, index);
- if (cmd != NULL)
+ /*
+ * We cannot just check if the index is valid,
+ * becase if we are run from the scsi eh, then
+ * the scsi/block layer is going to prevent
+ * the tag from being released.
+ */
+ if (cmd != NULL && CMD_SP(cmd))
break;
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
@@ -937,11 +939,14 @@ int qla4xxx_soft_reset(struct scsi_qla_host *ha)
{
uint32_t max_wait_time;
unsigned long flags = 0;
- int status = QLA_ERROR;
+ int status;
uint32_t ctrl_status;
- qla4xxx_hw_reset(ha);
+ status = qla4xxx_hw_reset(ha);
+ if (status != QLA_SUCCESS)
+ return status;
+ status = QLA_ERROR;
/* Wait until the Network Reset Intr bit is cleared */
max_wait_time = RESET_INTR_TOV;
do {
@@ -1101,7 +1106,8 @@ static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
ha->host_no, __func__));
status = ha->isp_ops->reset_firmware(ha);
if (status == QLA_SUCCESS) {
- qla4xxx_cmd_wait(ha);
+ if (!test_bit(AF_FW_RECOVERY, &ha->flags))
+ qla4xxx_cmd_wait(ha);
ha->isp_ops->disable_intrs(ha);
qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
@@ -1118,7 +1124,8 @@ static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
* or if stop_firmware fails for ISP-82xx.
* This is the default case for ISP-4xxx */
if (!is_qla8022(ha) || reset_chip) {
- qla4xxx_cmd_wait(ha);
+ if (!test_bit(AF_FW_RECOVERY, &ha->flags))
+ qla4xxx_cmd_wait(ha);
qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
DEBUG2(ql4_printk(KERN_INFO, ha,
@@ -1471,24 +1478,10 @@ int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
db_len = pci_resource_len(pdev, 4);
- /* mapping of doorbell write pointer */
- ha->nx_db_wr_ptr = (unsigned long)ioremap(db_base +
- (ha->pdev->devfn << 12), 4);
- if (!ha->nx_db_wr_ptr) {
- printk(KERN_ERR
- "cannot remap MMIO doorbell-write (%s), aborting\n",
- pci_name(pdev));
- goto iospace_error_exit;
- }
- /* mapping of doorbell read pointer */
- ha->nx_db_rd_ptr = (uint8_t *) ha->nx_pcibase + (512 * 1024) +
- (ha->pdev->devfn * 8);
- if (!ha->nx_db_rd_ptr)
- printk(KERN_ERR
- "cannot remap MMIO doorbell-read (%s), aborting\n",
- pci_name(pdev));
- return 0;
+ ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
+ QLA82XX_CAM_RAM_DB2);
+ return 0;
iospace_error_exit:
return -ENOMEM;
}
@@ -1960,13 +1953,11 @@ static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
{
unsigned long wait_online;
- wait_online = jiffies + (30 * HZ);
+ wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
while (time_before(jiffies, wait_online)) {
if (adapter_up(ha))
return QLA_SUCCESS;
- else if (ha->retry_reset_ha_cnt == 0)
- return QLA_ERROR;
msleep(2000);
}
@@ -2021,6 +2012,7 @@ static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
unsigned int id = cmd->device->id;
unsigned int lun = cmd->device->lun;
unsigned long serial = cmd->serial_number;
+ unsigned long flags;
struct srb *srb = NULL;
int ret = SUCCESS;
int wait = 0;
@@ -2029,12 +2021,14 @@ static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
"scsi%ld:%d:%d: Abort command issued cmd=%p, pid=%ld\n",
ha->host_no, id, lun, cmd, serial);
+ spin_lock_irqsave(&ha->hardware_lock, flags);
srb = (struct srb *) CMD_SP(cmd);
-
- if (!srb)
+ if (!srb) {
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
return SUCCESS;
-
+ }
kref_get(&srb->srb_ref);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n",
@@ -2267,6 +2261,8 @@ qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
qla4xxx_mailbox_premature_completion(ha);
qla4xxx_free_irqs(ha);
pci_disable_device(pdev);
+ /* Return back all IOs */
+ qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
return PCI_ERS_RESULT_NEED_RESET;
case pci_channel_io_perm_failure:
set_bit(AF_EEH_BUSY, &ha->flags);
@@ -2290,17 +2286,13 @@ qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
if (!is_aer_supported(ha))
return PCI_ERS_RESULT_NONE;
- if (test_bit(AF_FW_RECOVERY, &ha->flags)) {
- ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: firmware hang -- "
- "mmio_enabled\n", ha->host_no, __func__);
- return PCI_ERS_RESULT_NEED_RESET;
- } else
- return PCI_ERS_RESULT_RECOVERED;
+ return PCI_ERS_RESULT_RECOVERED;
}
-uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
+static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
{
uint32_t rval = QLA_ERROR;
+ uint32_t ret = 0;
int fn;
struct pci_dev *other_pdev = NULL;
@@ -2312,7 +2304,6 @@ uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
clear_bit(AF_ONLINE, &ha->flags);
qla4xxx_mark_all_devices_missing(ha);
qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
- qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
}
fn = PCI_FUNC(ha->pdev->devfn);
@@ -2375,7 +2366,16 @@ uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
/* Clear driver state register */
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
qla4_8xxx_set_drv_active(ha);
- ha->isp_ops->enable_intrs(ha);
+ ret = qla4xxx_request_irqs(ha);
+ if (ret) {
+ ql4_printk(KERN_WARNING, ha, "Failed to "
+ "reserve interrupt %d already in use.\n",
+ ha->pdev->irq);
+ rval = QLA_ERROR;
+ } else {
+ ha->isp_ops->enable_intrs(ha);
+ rval = QLA_SUCCESS;
+ }
}
qla4_8xxx_idc_unlock(ha);
} else {
@@ -2387,8 +2387,18 @@ uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
clear_bit(AF_FW_RECOVERY, &ha->flags);
rval = qla4xxx_initialize_adapter(ha,
PRESERVE_DDB_LIST);
- if (rval == QLA_SUCCESS)
- ha->isp_ops->enable_intrs(ha);
+ if (rval == QLA_SUCCESS) {
+ ret = qla4xxx_request_irqs(ha);
+ if (ret) {
+ ql4_printk(KERN_WARNING, ha, "Failed to"
+ " reserve interrupt %d already in"
+ " use.\n", ha->pdev->irq);
+ rval = QLA_ERROR;
+ } else {
+ ha->isp_ops->enable_intrs(ha);
+ rval = QLA_SUCCESS;
+ }
+ }
qla4_8xxx_idc_lock(ha);
qla4_8xxx_set_drv_active(ha);
qla4_8xxx_idc_unlock(ha);
@@ -2430,12 +2440,7 @@ qla4xxx_pci_slot_reset(struct pci_dev *pdev)
goto exit_slot_reset;
}
- ret = qla4xxx_request_irqs(ha);
- if (ret) {
- ql4_printk(KERN_WARNING, ha, "Failed to reserve interrupt %d"
- " already in use.\n", pdev->irq);
- goto exit_slot_reset;
- }
+ ha->isp_ops->disable_intrs(ha);
if (is_qla8022(ha)) {
if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
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