From: adam radford <aradford@gmail.com>
Date: Fri, 25 Feb 2011 04:56:21 +0000 (-0800)
Subject: [SCSI] megaraid_sas: Call tasklet_schedule for MSI-X
X-Git-Tag: firefly_0821_release~7613^2~2168^2~28
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e1419191d8d38098fb6ef29e94aadd15dabff3da;p=firefly-linux-kernel-4.4.55.git

[SCSI] megaraid_sas: Call tasklet_schedule for MSI-X

The following patch for megaraid_sas calls tasklet_schedule() even if
outbound_intr_status == 0 for MFI based boards in MSI-X mode.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---

diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 78c263337b0b..050ec1694e68 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -2503,7 +2503,9 @@ megasas_deplete_reply_queue(struct megasas_instance *instance,
 	if ((mfiStatus = instance->instancet->clear_intr(
 						instance->reg_set)
 						) == 0) {
-		return IRQ_NONE;
+		/* Hardware may not set outbound_intr_status in MSI-X mode */
+		if (!instance->msi_flag)
+			return IRQ_NONE;
 	}
 
 	instance->mfiStatus = mfiStatus;