[SCSI] qla2xxx: Workaround D3 power-management issues.
Early ISP2432 parts have a known hardware issue when coming
out of a D3 hot state. This issue can result in a hung PCIe
link. Recent firmwares contain a workaround whereby the
stop-firmware mailbox command prevents the ISP from entering
the D3 hot state.
In order to ensure that the workaround succeeded the driver
must verify that the stop-firmware mailbox command completes
successfully. In the event of a failure, the driver
attempts a shutdown-retry after resetting the ISP and
re-executing firmware.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 34b6eb7..54f561d 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1712,8 +1712,10 @@
if (ha->eft)
qla2x00_trace_control(ha, TC_DISABLE, 0, 0);
+ ha->flags.online = 0;
+
/* Stop currently executing firmware. */
- qla2x00_stop_firmware(ha);
+ qla2x00_try_to_stop_firmware(ha);
/* turn-off interrupts on the card */
if (ha->interrupts_on)
@@ -1721,8 +1723,6 @@
qla2x00_mem_free(ha);
- ha->flags.online = 0;
-
/* Detach interrupts */
if (ha->host->irq)
free_irq(ha->host->irq, ha);
