From: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Date: Fri, 10 Mar 2017 11:22:14 +0000 (-0800)
Subject: scsi: megaraid_sas: raid6 also require cpuSel check same as raid5
X-Git-Tag: v4.1.12-102.0.20170601_1400~2
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=a1f8b6ac0c4e92cf2b3cfed762ead73088980132;p=users%2Fjedix%2Flinux-maple.git

scsi: megaraid_sas: raid6 also require cpuSel check same as raid5

Orabug: 26096381

Without this fix, raid6 performance will not be optimal.

Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 874d025da667d19b728141437ccbefe9dbaf9e7b)
Signed-off-by: Somasundaram Krishnasamy <somasundaram.krishnasamy@oracle.com>
Signed-off-by: Kirtikar Kashyap <kirtikar.kashyap@oracle.com>
Reviewed-by: Dhaval Giani <dhaval.giani@oracle.com>
---

diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 4fa7d02d9d3bf..303ec80c770b9 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -1886,7 +1886,7 @@ megasas_set_raidflag_cpu_affinity(union RAID_CONTEXT_UNION *praid_context,
 				cpu_sel = MR_RAID_CTX_CPUSEL_1;
 
 			if (is_stream_detected(rctx_g35) &&
-			    (raid->level == 5) &&
+			    ((raid->level == 5) || (raid->level == 6)) &&
 			    (raid->writeMode == MR_RL_WRITE_THROUGH_MODE) &&
 			    (cpu_sel == MR_RAID_CTX_CPUSEL_FCFS))
 				cpu_sel = MR_RAID_CTX_CPUSEL_0;