[SCSI] hpsa: factor out hpsa_enter_simple_mode

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 9e81e0bcf1e2e1ef5334b02acc4d4d4cc2e82ccd..4d4ecca399aea7059beb2d4d61e3afd503b75266 100644 (file)
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -3410,9 +3410,41 @@ static inline void hpsa_p600_dma_prefetch_quirk(struct ctlr_info *h)
        writel(dma_prefetch, h->vaddr + I2O_DMA1_CFG);
 }
 
+static int __devinit hpsa_enter_simple_mode(struct ctlr_info *h)
+{
+       int i;
+
+       h->max_commands = readl(&(h->cfgtable->CmdsOutMax));
+       /* Update the field, and then ring the doorbell */
+       writel(CFGTBL_Trans_Simple, &(h->cfgtable->HostWrite.TransportRequest));
+       writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
+
+       /* under certain very rare conditions, this can take awhile.
+        * (e.g.: hot replace a failed 144GB drive in a RAID 5 set right
+        * as we enter this code.)
+        */
+       for (i = 0; i < MAX_CONFIG_WAIT; i++) {
+               if (!(readl(h->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq))
+                       break;
+               /* delay and try again */
+               msleep(10);
+       }
+
+#ifdef HPSA_DEBUG
+       print_cfg_table(&h->pdev->dev, h->cfgtable);
+#endif                         /* HPSA_DEBUG */
+
+       if (!(readl(&(h->cfgtable->TransportActive)) & CFGTBL_Trans_Simple)) {
+               dev_warn(&h->pdev->dev,
+                       "unable to get board into simple mode\n");
+               return -ENODEV;
+       }
+       return 0;
+}
+
 static int __devinit hpsa_pci_init(struct ctlr_info *h)
 {
-       int i, prod_index, err;
+       int prod_index, err;
 
        prod_index = hpsa_lookup_board_id(h->pdev, &h->board_id);
        if (prod_index < 0)
@@ -3459,33 +3491,9 @@ static int __devinit hpsa_pci_init(struct ctlr_info *h)
        }
        hpsa_enable_scsi_prefetch(h);
        hpsa_p600_dma_prefetch_quirk(h);
-
-       h->max_commands = readl(&(h->cfgtable->CmdsOutMax));
-       /* Update the field, and then ring the doorbell */
-       writel(CFGTBL_Trans_Simple, &(h->cfgtable->HostWrite.TransportRequest));
-       writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
-
-       /* under certain very rare conditions, this can take awhile.
-        * (e.g.: hot replace a failed 144GB drive in a RAID 5 set right
-        * as we enter this code.)
-        */
-       for (i = 0; i < MAX_CONFIG_WAIT; i++) {
-               if (!(readl(h->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq))
-                       break;
-               /* delay and try again */
-               msleep(10);
-       }
-
-#ifdef HPSA_DEBUG
-       print_cfg_table(&h->pdev->dev, h->cfgtable);
-#endif                         /* HPSA_DEBUG */
-
-       if (!(readl(&(h->cfgtable->TransportActive)) & CFGTBL_Trans_Simple)) {
-               dev_warn(&h->pdev->dev,
-                       "unable to get board into simple mode\n");
-               err = -ENODEV;
+       err = hpsa_enter_simple_mode(h);
+       if (err)
                goto err_out_free_res;
-       }
        return 0;
 
 err_out_free_res: