[SCSI] qla2xxx: Consolidate queuecommand implementations.

Post refactoring/multi-queue additions essentially eliminated the
need for separate ISP24XX+ queuecommand as isp_ops contains a
function pointer to the associated 'start_scsi()' operation.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

3 files changed, 7 insertions, 108 deletions

diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 6de283f8f111..85b689c937b3 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -82,7 +82,7 @@ extern void qla2x00_relogin(struct scsi_qla_host *);
 /*
  * Global Functions in qla_mid.c source file.
  */
-extern struct scsi_host_template qla24xx_driver_template;
+extern struct scsi_host_template qla2xxx_driver_template;
 extern struct scsi_transport_template *qla2xxx_transport_vport_template;
 extern void qla2x00_timer(scsi_qla_host_t *);
 extern void qla2x00_start_timer(scsi_qla_host_t *, void *, unsigned long);
diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c
index e2bd36e7e885..51716c7e3008 100644
--- a/drivers/scsi/qla2xxx/qla_mid.c
+++ b/drivers/scsi/qla2xxx/qla_mid.c
@@ -359,7 +359,7 @@ qla24xx_create_vhost(struct fc_vport *fc_vport)
         scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
         struct qla_hw_data *ha = base_vha->hw;
         scsi_qla_host_t *vha;
-        struct scsi_host_template *sht = &qla24xx_driver_template;
+        struct scsi_host_template *sht = &qla2xxx_driver_template;
         struct Scsi_Host *host;
 
         vha = qla2x00_create_host(sht, ha);
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index a6761ff73e24..41ff7d69bd64 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -104,9 +104,7 @@ static int qla2xxx_slave_alloc(struct scsi_device *);
 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
 static void qla2xxx_scan_start(struct Scsi_Host *);
 static void qla2xxx_slave_destroy(struct scsi_device *);
-static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
-                void (*fn)(struct scsi_cmnd *));
-static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
+static int qla2xxx_queuecommand(struct scsi_cmnd *cmd,
                 void (*fn)(struct scsi_cmnd *));
 static int qla2xxx_eh_abort(struct scsi_cmnd *);
 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
@@ -117,42 +115,10 @@ static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 static int qla2x00_change_queue_depth(struct scsi_device *, int);
 static int qla2x00_change_queue_type(struct scsi_device *, int);
 
-static struct scsi_host_template qla2x00_driver_template = {
+struct scsi_host_template qla2xxx_driver_template = {
         .module                 = THIS_MODULE,
         .name                   = QLA2XXX_DRIVER_NAME,
-        .queuecommand           = qla2x00_queuecommand,
-
-        .eh_abort_handler       = qla2xxx_eh_abort,
-        .eh_device_reset_handler = qla2xxx_eh_device_reset,
-        .eh_target_reset_handler = qla2xxx_eh_target_reset,
-        .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
-        .eh_host_reset_handler  = qla2xxx_eh_host_reset,
-
-        .slave_configure        = qla2xxx_slave_configure,
-
-        .slave_alloc            = qla2xxx_slave_alloc,
-        .slave_destroy          = qla2xxx_slave_destroy,
-        .scan_finished          = qla2xxx_scan_finished,
-        .scan_start             = qla2xxx_scan_start,
-        .change_queue_depth     = qla2x00_change_queue_depth,
-        .change_queue_type      = qla2x00_change_queue_type,
-        .this_id                = -1,
-        .cmd_per_lun            = 3,
-        .use_clustering         = ENABLE_CLUSTERING,
-        .sg_tablesize           = SG_ALL,
-
-        /*
-         * The RISC allows for each command to transfer (2^32-1) bytes of data,
-         * which equates to 0x800000 sectors.
-         */
-        .max_sectors            = 0xFFFF,
-        .shost_attrs            = qla2x00_host_attrs,
-};
-
-struct scsi_host_template qla24xx_driver_template = {
-        .module                 = THIS_MODULE,
-        .name                   = QLA2XXX_DRIVER_NAME,
-        .queuecommand           = qla24xx_queuecommand,
+        .queuecommand           = qla2xxx_queuecommand,
 
         .eh_abort_handler       = qla2xxx_eh_abort,
         .eh_device_reset_handler = qla2xxx_eh_device_reset,
@@ -430,73 +396,7 @@ qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
 }
 
 static int
-qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
-{
-        scsi_qla_host_t *vha = shost_priv(cmd->device->host);
-        fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
-        struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
-        struct qla_hw_data *ha = vha->hw;
-        srb_t *sp;
-        int rval;
-
-        if (unlikely(pci_channel_offline(ha->pdev))) {
-                cmd->result = DID_REQUEUE << 16;
-                goto qc_fail_command;
-        }
-
-        rval = fc_remote_port_chkready(rport);
-        if (rval) {
-                cmd->result = rval;
-                goto qc_fail_command;
-        }
-
-        /* Close window on fcport/rport state-transitioning. */
-        if (fcport->drport)
-                goto qc_target_busy;
-
-        if (atomic_read(&fcport->state) != FCS_ONLINE) {
-                if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
-                    atomic_read(&vha->loop_state) == LOOP_DEAD) {
-                        cmd->result = DID_NO_CONNECT << 16;
-                        goto qc_fail_command;
-                }
-                goto qc_target_busy;
-        }
-
-        spin_unlock_irq(vha->host->host_lock);
-
-        sp = qla2x00_get_new_sp(vha, fcport, cmd, done);
-        if (!sp)
-                goto qc_host_busy_lock;
-
-        rval = ha->isp_ops->start_scsi(sp);
-        if (rval != QLA_SUCCESS)
-                goto qc_host_busy_free_sp;
-
-        spin_lock_irq(vha->host->host_lock);
-
-        return 0;
-
-qc_host_busy_free_sp:
-        qla2x00_sp_free_dma(sp);
-        mempool_free(sp, ha->srb_mempool);
-
-qc_host_busy_lock:
-        spin_lock_irq(vha->host->host_lock);
-        return SCSI_MLQUEUE_HOST_BUSY;
-
-qc_target_busy:
-        return SCSI_MLQUEUE_TARGET_BUSY;
-
-qc_fail_command:
-        done(cmd);
-
-        return 0;
-}
-
-
-static int
-qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
+qla2xxx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 {
         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
@@ -1712,7 +1612,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
         struct rsp_que *rsp = NULL;
 
         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
-        sht = &qla2x00_driver_template;
+        sht = &qla2xxx_driver_template;
         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
@@ -1721,7 +1621,6 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001) {
                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
-                sht = &qla24xx_driver_template;
                 mem_only = 1;
         }