Commit df3b7668 authored by Mark Haverkamp's avatar Mark Haverkamp Committed by James Bottomley

[SCSI] aacraid: sa race condition fix

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: default avatarMark Haverkamp <markh@osdl.org>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent 404d9a90
...@@ -66,11 +66,11 @@ static irqreturn_t aac_sa_intr(int irq, void *dev_id, struct pt_regs *regs) ...@@ -66,11 +66,11 @@ static irqreturn_t aac_sa_intr(int irq, void *dev_id, struct pt_regs *regs)
sa_writew(dev, DoorbellClrReg_p, PrintfReady); /* clear PrintfReady */ sa_writew(dev, DoorbellClrReg_p, PrintfReady); /* clear PrintfReady */
sa_writew(dev, DoorbellReg_s, PrintfDone); sa_writew(dev, DoorbellReg_s, PrintfDone);
} else if (intstat & DOORBELL_1) { // dev -> Host Normal Command Ready } else if (intstat & DOORBELL_1) { // dev -> Host Normal Command Ready
aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
sa_writew(dev, DoorbellClrReg_p, DOORBELL_1); sa_writew(dev, DoorbellClrReg_p, DOORBELL_1);
aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
} else if (intstat & DOORBELL_2) { // dev -> Host Normal Response Ready } else if (intstat & DOORBELL_2) { // dev -> Host Normal Response Ready
aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
sa_writew(dev, DoorbellClrReg_p, DOORBELL_2); 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 } else if (intstat & DOORBELL_3) { // dev -> Host Normal Command Not Full
sa_writew(dev, DoorbellClrReg_p, DOORBELL_3); sa_writew(dev, DoorbellClrReg_p, DOORBELL_3);
} else if (intstat & DOORBELL_4) { // dev -> Host Normal Response Not Full } else if (intstat & DOORBELL_4) { // dev -> Host Normal Response Not Full
......
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