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-rw-r--r--drivers/scsi/aacraid/aachba.c2
-rw-r--r--drivers/scsi/aacraid/comminit.c2
-rw-r--r--drivers/scsi/aacraid/commsup.c30
3 files changed, 31 insertions, 3 deletions
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 85d133c40bd..a0735a247e5 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -692,7 +692,7 @@ int aac_get_adapter_info(struct aac_dev* dev)
fibptr,
sizeof(*info),
FsaNormal,
- 1, 1,
+ -1, 1, /* First `interrupt' command uses special wait */
NULL,
NULL);
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 7f11c8540ea..9e054a509b4 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -195,7 +195,7 @@ int aac_send_shutdown(struct aac_dev * dev)
fibctx,
sizeof(struct aac_close),
FsaNormal,
- 1, 1,
+ -2 /* Timeout silently */, 1,
NULL, NULL);
if (status == 0)
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 69985b08a27..3b983f3ed96 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -41,6 +41,7 @@
#include <scsi/scsi_host.h>
#include <scsi/scsi_device.h>
#include <asm/semaphore.h>
+#include <asm/delay.h>
#include "aacraid.h"
@@ -541,7 +542,34 @@ int fib_send(u16 command, struct fib * fibptr, unsigned long size, int priority
if (wait) {
spin_unlock_irqrestore(&fibptr->event_lock, flags);
- down(&fibptr->event_wait);
+ /* Only set for first known interruptable command */
+ if (wait < 0) {
+ /*
+ * *VERY* Dangerous to time out a command, the
+ * assumption is made that we have no hope of
+ * functioning because an interrupt routing or other
+ * hardware failure has occurred.
+ */
+ unsigned long count = 36000000L; /* 3 minutes */
+ unsigned long qflags;
+ while (down_trylock(&fibptr->event_wait)) {
+ if (--count == 0) {
+ spin_lock_irqsave(q->lock, qflags);
+ q->numpending--;
+ list_del(&fibptr->queue);
+ spin_unlock_irqrestore(q->lock, qflags);
+ if (wait == -1) {
+ printk(KERN_ERR "aacraid: fib_send: first asynchronous command timed out.\n"
+ "Usually a result of a PCI interrupt routing problem;\n"
+ "update mother board BIOS or consider utilizing one of\n"
+ "the SAFE mode kernel options (acpi, apic etc)\n");
+ }
+ return -ETIMEDOUT;
+ }
+ udelay(5);
+ }
+ } else
+ down(&fibptr->event_wait);
if(fibptr->done == 0)
BUG();