Commit d424754c authored Oct 26, 2011 by Andrew Vasquez Committed by James Bottomley Oct 30, 2011

[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>

parent a63ec376

drivers/scsi/qla2xxx/qla_isr.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);