[SCSI] aacraid: Detect Blinkled at startup

Received from Mark Salyzyn:

Blinkled at startup is useful for catching Adapters in a lot of pain, in a
BlinkLED assert, quickly; rather than waiting several minutes for commands to
timeout.

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

diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 19e42ac..0fd462a 100644 (file)
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -518,6 +518,7 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
                         */
                        unsigned long count = 36000000L; /* 3 minutes */
                        while (down_trylock(&fibptr->event_wait)) {
+                               int blink;
                                if (--count == 0) {
                                        spin_lock_irqsave(q->lock, qflags);
                                        q->numpending--;
@@ -530,6 +531,14 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
                                        }
                                        return -ETIMEDOUT;
                                }
+                               if ((blink = aac_adapter_check_health(dev)) > 0) {
+                                       if (wait == -1) {
+                                               printk(KERN_ERR "aacraid: aac_fib_send: adapter blinkLED 0x%x.\n"
+                                                 "Usually a result of a serious unrecoverable hardware problem\n",
+                                                 blink);
+                                       }
+                                       return -EFAULT;
+                               }
                                udelay(5);
                        }
                } else if (down_interruptible(&fibptr->event_wait)) {