[SCSI] aacraid: Newer adapter communication iterface support

Received from Mark Salyzyn.

This patch adds the 'new comm' interface, which modern AAC based
adapters that are less than a year old support in the name of much
improved performance. These modern adapters support both the legacy and
the 'new comm' interfaces.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 25 insertions, 2 deletions

diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index c235d0c0e7a7..ab383d1f59e2 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -788,8 +788,29 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
                 goto out_free_host;
         spin_lock_init(&aac->fib_lock);
 
-        if ((*aac_drivers[index].init)(aac))
+        /*
+         *      Map in the registers from the adapter.
+         */
+        aac->base_size = AAC_MIN_FOOTPRINT_SIZE;
+        if ((aac->regs.sa = ioremap(
+          (unsigned long)aac->scsi_host_ptr->base, AAC_MIN_FOOTPRINT_SIZE))
+          == NULL) {    
+                printk(KERN_WARNING "%s: unable to map adapter.\n",
+                  AAC_DRIVERNAME);
                 goto out_free_fibs;
+        }
+        if ((*aac_drivers[index].init)(aac))
+                goto out_unmap;
+
+        /*
+         *      Start any kernel threads needed
+         */
+        aac->thread_pid = kernel_thread((int (*)(void *))aac_command_thread,
+          aac, 0);
+        if (aac->thread_pid < 0) {
+                printk(KERN_ERR "aacraid: Unable to create command thread.\n");
+                goto out_deinit;
+        }
 
         /*
          * If we had set a smaller DMA mask earlier, set it to 4gig
@@ -866,10 +887,11 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
 
         aac_send_shutdown(aac);
         aac_adapter_disable_int(aac);
+        free_irq(pdev->irq, aac);
+ out_unmap:
         fib_map_free(aac);
         pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr, aac->comm_phys);
         kfree(aac->queues);
-        free_irq(pdev->irq, aac);
         iounmap(aac->regs.sa);
  out_free_fibs:
         kfree(aac->fibs);
@@ -910,6 +932,7 @@ static void __devexit aac_remove_one(struct pci_dev *pdev)
         iounmap(aac->regs.sa);
         
         kfree(aac->fibs);
+        kfree(aac->fsa_dev);
         
         list_del(&aac->entry);
         scsi_host_put(shost);