int ql4_mod_unload = 0;
+#define QL4_DEF_QDEPTH 32
+
/*
* SCSI host template entry points
*/
static int qla4xxx_host_get_param(struct Scsi_Host *shost,
enum iscsi_host_param param, char *buf);
static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session);
+static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc);
/*
* SCSI host template entry points
static int qla4xxx_queuecommand(struct scsi_cmnd *cmd,
void (*done) (struct scsi_cmnd *));
static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd);
+static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd);
static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd);
static int qla4xxx_slave_alloc(struct scsi_device *device);
static int qla4xxx_slave_configure(struct scsi_device *device);
static void qla4xxx_slave_destroy(struct scsi_device *sdev);
+static void qla4xxx_scan_start(struct Scsi_Host *shost);
static struct scsi_host_template qla4xxx_driver_template = {
.module = THIS_MODULE,
.queuecommand = qla4xxx_queuecommand,
.eh_device_reset_handler = qla4xxx_eh_device_reset,
+ .eh_target_reset_handler = qla4xxx_eh_target_reset,
.eh_host_reset_handler = qla4xxx_eh_host_reset,
+ .eh_timed_out = qla4xxx_eh_cmd_timed_out,
.slave_configure = qla4xxx_slave_configure,
.slave_alloc = qla4xxx_slave_alloc,
.slave_destroy = qla4xxx_slave_destroy,
.scan_finished = iscsi_scan_finished,
+ .scan_start = qla4xxx_scan_start,
.this_id = -1,
.cmd_per_lun = 3,
.host_param_mask = ISCSI_HOST_HWADDRESS |
ISCSI_HOST_IPADDRESS |
ISCSI_HOST_INITIATOR_NAME,
- .sessiondata_size = sizeof(struct ddb_entry),
- .host_template = &qla4xxx_driver_template,
-
.tgt_dscvr = qla4xxx_tgt_dscvr,
.get_conn_param = qla4xxx_conn_get_param,
.get_session_param = qla4xxx_sess_get_param,
static struct scsi_transport_template *qla4xxx_scsi_transport;
+static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
+{
+ struct iscsi_cls_session *session;
+ struct ddb_entry *ddb_entry;
+
+ session = starget_to_session(scsi_target(sc->device));
+ ddb_entry = session->dd_data;
+
+ /* if we are not logged in then the LLD is going to clean up the cmd */
+ if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE)
+ return BLK_EH_RESET_TIMER;
+ else
+ return BLK_EH_NOT_HANDLED;
+}
+
static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session)
{
struct ddb_entry *ddb_entry = session->dd_data;
break;
case ISCSI_PARAM_CONN_ADDRESS:
/* TODO: what are the ipv6 bits */
- len = sprintf(buf, "%u.%u.%u.%u\n",
- NIPQUAD(ddb_entry->ip_addr));
+ len = sprintf(buf, "%pI4\n", &ddb_entry->ip_addr);
break;
default:
return -ENOSYS;
return err;
}
- ddb_entry->conn = iscsi_create_conn(ddb_entry->sess, 0);
+ ddb_entry->conn = iscsi_create_conn(ddb_entry->sess, 0, 0);
if (!ddb_entry->conn) {
iscsi_remove_session(ddb_entry->sess);
DEBUG2(printk(KERN_ERR "Could not add connection.\n"));
struct ddb_entry *ddb_entry;
struct iscsi_cls_session *sess;
- sess = iscsi_alloc_session(ha->host, &qla4xxx_iscsi_transport);
+ sess = iscsi_alloc_session(ha->host, &qla4xxx_iscsi_transport,
+ sizeof(struct ddb_entry));
if (!sess)
return NULL;
return ddb_entry;
}
+static void qla4xxx_scan_start(struct Scsi_Host *shost)
+{
+ struct scsi_qla_host *ha = shost_priv(shost);
+ struct ddb_entry *ddb_entry, *ddbtemp;
+
+ /* finish setup of sessions that were already setup in firmware */
+ list_for_each_entry_safe(ddb_entry, ddbtemp, &ha->ddb_list, list) {
+ if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE)
+ qla4xxx_add_sess(ddb_entry);
+ }
+}
+
/*
* Timer routines
*/
ha->host_no, ddb_entry->bus, ddb_entry->target,
ddb_entry->fw_ddb_index));
iscsi_block_session(ddb_entry->sess);
- iscsi_conn_error(ddb_entry->conn, ISCSI_ERR_CONN_FAILED);
+ iscsi_conn_error_event(ddb_entry->conn, ISCSI_ERR_CONN_FAILED);
}
static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
cmd->result = DID_NO_CONNECT << 16;
goto qc_fail_command;
}
- goto qc_host_busy;
+ return SCSI_MLQUEUE_TARGET_BUSY;
}
if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags))
* qla4xxx_recover_adapter - recovers adapter after a fatal error
* @ha: Pointer to host adapter structure.
* @renew_ddb_list: Indicates what to do with the adapter's ddb list
- * after adapter recovery has completed.
- * 0=preserve ddb list, 1=destroy and rebuild ddb list
+ *
+ * renew_ddb_list value can be 0=preserve ddb list, 1=destroy and rebuild
+ * ddb list.
**/
static int qla4xxx_recover_adapter(struct scsi_qla_host *ha,
uint8_t renew_ddb_list)
/* Stall incoming I/O until we are done */
clear_bit(AF_ONLINE, &ha->flags);
+
DEBUG2(printk("scsi%ld: %s calling qla4xxx_cmd_wait\n", ha->host_no,
__func__));
/* Flush any pending ddb changed AENs */
qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
+ qla4xxx_flush_active_srbs(ha);
+
/* Reset the firmware. If successful, function
* returns with ISP interrupts enabled.
*/
- if (status == QLA_SUCCESS) {
- DEBUG2(printk("scsi%ld: %s - Performing soft reset..\n",
- ha->host_no, __func__));
- qla4xxx_flush_active_srbs(ha);
- if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS)
- status = qla4xxx_soft_reset(ha);
- else
- status = QLA_ERROR;
- }
+ DEBUG2(printk("scsi%ld: %s - Performing soft reset..\n",
+ ha->host_no, __func__));
+ if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS)
+ status = qla4xxx_soft_reset(ha);
+ else
+ status = QLA_ERROR;
/* Flush any pending ddb changed AENs */
qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
int ret = -ENODEV, status;
struct Scsi_Host *host;
struct scsi_qla_host *ha;
- struct ddb_entry *ddb_entry, *ddbtemp;
uint8_t init_retry_count = 0;
char buf[34];
if (ret)
goto probe_failed;
- /* Update transport device information for all devices. */
- list_for_each_entry_safe(ddb_entry, ddbtemp, &ha->ddb_list, list) {
- if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE)
- if (qla4xxx_add_sess(ddb_entry))
- goto remove_host;
- }
-
printk(KERN_INFO
" QLogic iSCSI HBA Driver version: %s\n"
" QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
scsi_scan_host(host);
return 0;
-remove_host:
- qla4xxx_free_ddb_list(ha);
- scsi_remove_host(host);
-
probe_failed:
qla4xxx_free_adapter(ha);
scsi_host_put(ha->host);
int retval;
/* Update our PCI device dma_mask for full 64 bit mask */
- if (pci_set_dma_mask(ha->pdev, DMA_64BIT_MASK) == 0) {
- if (pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
+ if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) {
+ if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
dev_dbg(&ha->pdev->dev,
"Failed to set 64 bit PCI consistent mask; "
"using 32 bit.\n");
retval = pci_set_consistent_dma_mask(ha->pdev,
- DMA_32BIT_MASK);
+ DMA_BIT_MASK(32));
}
} else
- retval = pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK);
+ retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32));
}
static int qla4xxx_slave_alloc(struct scsi_device *sdev)
sdev->hostdata = ddb;
sdev->tagged_supported = 1;
- scsi_activate_tcq(sdev, sdev->host->can_queue);
+ scsi_activate_tcq(sdev, QL4_DEF_QDEPTH);
return 0;
}
/**
* qla4xxx_del_from_active_array - returns an active srb
* @ha: Pointer to host adapter structure.
- * @index: index into to the active_array
+ * @index: index into the active_array
*
* This routine removes and returns the srb at the specified index
**/
}
/**
- * qla4xxx_eh_wait_for_active_target_commands - wait for active cmds to finish.
- * @ha: pointer to to HBA
+ * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
+ * @ha: pointer to HBA
* @t: target id
* @l: lun id
*
* This function waits for all outstanding commands to a lun to complete. It
* returns 0 if all pending commands are returned and 1 otherwise.
**/
-static int qla4xxx_eh_wait_for_active_target_commands(struct scsi_qla_host *ha,
- int t, int l)
+static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
+ struct scsi_target *stgt,
+ struct scsi_device *sdev)
{
int cnt;
int status = 0;
struct scsi_cmnd *cmd;
/*
- * Waiting for all commands for the designated target in the active
- * array
+ * Waiting for all commands for the designated target or dev
+ * in the active array
*/
for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
cmd = scsi_host_find_tag(ha->host, cnt);
- if (cmd && cmd->device->id == t && cmd->device->lun == l) {
+ if (cmd && stgt == scsi_target(cmd->device) &&
+ (!sdev || sdev == cmd->device)) {
if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
status++;
break;
{
struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
struct ddb_entry *ddb_entry = cmd->device->hostdata;
- struct srb *sp;
int ret = FAILED, stat;
- sp = (struct srb *) cmd->SCp.ptr;
- if (!sp || !ddb_entry)
+ if (!ddb_entry)
return ret;
dev_info(&ha->pdev->dev,
DEBUG2(printk(KERN_INFO
"scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
"dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
- cmd, jiffies, cmd->timeout_per_command / HZ,
+ cmd, jiffies, cmd->request->timeout / HZ,
ha->dpc_flags, cmd->result, cmd->allowed));
/* FIXME: wait for hba to go online */
goto eh_dev_reset_done;
}
- /* Send marker. */
- ha->marker_needed = 1;
-
- /*
- * If we are coming down the EH path, wait for all commands to complete
- * for the device.
- */
- if (cmd->device->host->shost_state == SHOST_RECOVERY) {
- if (qla4xxx_eh_wait_for_active_target_commands(ha,
- cmd->device->id,
- cmd->device->lun)){
- dev_info(&ha->pdev->dev,
- "DEVICE RESET FAILED - waiting for "
- "commands.\n");
- goto eh_dev_reset_done;
- }
+ if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
+ cmd->device)) {
+ dev_info(&ha->pdev->dev,
+ "DEVICE RESET FAILED - waiting for "
+ "commands.\n");
+ goto eh_dev_reset_done;
}
+ /* Send marker. */
+ if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
+ MM_LUN_RESET) != QLA_SUCCESS)
+ goto eh_dev_reset_done;
+
dev_info(&ha->pdev->dev,
"scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n",
ha->host_no, cmd->device->channel, cmd->device->id,
}
/**
+ * qla4xxx_eh_target_reset - callback for target reset.
+ * @cmd: Pointer to Linux's SCSI command structure
+ *
+ * This routine is called by the Linux OS to reset the target.
+ **/
+static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
+{
+ struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
+ struct ddb_entry *ddb_entry = cmd->device->hostdata;
+ int stat;
+
+ if (!ddb_entry)
+ return FAILED;
+
+ starget_printk(KERN_INFO, scsi_target(cmd->device),
+ "WARM TARGET RESET ISSUED.\n");
+
+ DEBUG2(printk(KERN_INFO
+ "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
+ "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
+ ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
+ ha->dpc_flags, cmd->result, cmd->allowed));
+
+ stat = qla4xxx_reset_target(ha, ddb_entry);
+ if (stat != QLA_SUCCESS) {
+ starget_printk(KERN_INFO, scsi_target(cmd->device),
+ "WARM TARGET RESET FAILED.\n");
+ return FAILED;
+ }
+
+ if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
+ NULL)) {
+ starget_printk(KERN_INFO, scsi_target(cmd->device),
+ "WARM TARGET DEVICE RESET FAILED - "
+ "waiting for commands.\n");
+ return FAILED;
+ }
+
+ /* Send marker. */
+ if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
+ MM_TGT_WARM_RESET) != QLA_SUCCESS) {
+ starget_printk(KERN_INFO, scsi_target(cmd->device),
+ "WARM TARGET DEVICE RESET FAILED - "
+ "marker iocb failed.\n");
+ return FAILED;
+ }
+
+ starget_printk(KERN_INFO, scsi_target(cmd->device),
+ "WARM TARGET RESET SUCCEEDED.\n");
+ return SUCCESS;
+}
+
+/**
* qla4xxx_eh_host_reset - kernel callback
* @cmd: Pointer to Linux's SCSI command structure
*
ha = (struct scsi_qla_host *) cmd->device->host->hostdata;
dev_info(&ha->pdev->dev,
- "scsi(%ld:%d:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no,
+ "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no,
cmd->device->channel, cmd->device->id, cmd->device->lun);
if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
return FAILED;
}
- if (qla4xxx_recover_adapter(ha, PRESERVE_DDB_LIST) == QLA_SUCCESS) {
+ /* make sure the dpc thread is stopped while we reset the hba */
+ clear_bit(AF_ONLINE, &ha->flags);
+ flush_workqueue(ha->dpc_thread);
+
+ if (qla4xxx_recover_adapter(ha, PRESERVE_DDB_LIST) == QLA_SUCCESS)
return_status = SUCCESS;
- }
dev_info(&ha->pdev->dev, "HOST RESET %s.\n",
return_status == FAILED ? "FAILED" : "SUCCEDED");