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[SCSI] qla2xxx: Correct inadvertent clearing of RISC_INTR status. 

During heavy I/O (CPU-affinity mode enabled) and CLI/Agent
interactions, the driver would report periodic mailbox command
timeout statuses.  Within the CPU-affinity ISR handler, the
driver should check the 'disable-msix-handshake' flag in deciding
whether or not to clear HCCRX_CLR_RISC_INT.  The mode is not
specific to a dedicated queue, instead, applies to the current
'ha' context.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Andrew Vasquez 2011-10-26 14:20:13 -07:00 committed by James Bottomley
parent a63ec37629
commit d424754cbe
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/qla2xxx/qla_isr.c
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@ -2279,7 +2279,7 @@ qla25xx_msix_rsp_q(int irq, void *dev_id)
ha = rsp->hw;
/* Clear the interrupt, if enabled, for this response queue */
if (rsp->options & ~BIT_6) {
if (!ha->flags.disable_msix_handshake) {
reg = &ha->iobase->isp24;
spin_lock_irqsave(&ha->hardware_lock, flags);
WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);