Received From Mark Salyzyn
A race condition existed that could result in a lost completion of a
command to the ppc based cards.
Signed-off-by: Mark Haverkamp <markh@xxxxxxxx>
---
Applies to the scsi-misc-2.6 tree.
--- scsi-misc-aac.orig/drivers/scsi/aacraid/sa.c 2006-05-09 14:48:58.000000000 -0700
+++ scsi-misc-aac/drivers/scsi/aacraid/sa.c 2006-05-09 14:49:54.000000000 -0700
@@ -66,11 +66,11 @@
sa_writew(dev, DoorbellClrReg_p, PrintfReady); /* clear PrintfReady */
sa_writew(dev, DoorbellReg_s, PrintfDone);
} else if (intstat & DOORBELL_1) { // dev -> Host Normal Command Ready
- aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
sa_writew(dev, DoorbellClrReg_p, DOORBELL_1);
+ aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
} else if (intstat & DOORBELL_2) { // dev -> Host Normal Response Ready
- aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
sa_writew(dev, DoorbellClrReg_p, DOORBELL_2);
+ aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
} else if (intstat & DOORBELL_3) { // dev -> Host Normal Command Not Full
sa_writew(dev, DoorbellClrReg_p, DOORBELL_3);
} else if (intstat & DOORBELL_4) { // dev -> Host Normal Response Not Full
--
Mark Haverkamp <markh@xxxxxxxx>
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