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authorSumit.Saxena@lsi.com <Sumit.Saxena@lsi.com>2013-05-22 12:30:22 +0530
committerJames Bottomley <JBottomley@Parallels.com>2013-06-24 17:22:18 -0700
commit70b47b881e1e50360cba17417f779953956b960d (patch)
treec65baa88b70ef85af27ffbd4a628144d768cefcd /drivers/scsi
parentb5bccadd804151d13530351f9a521e893cac5350 (diff)
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[SCSI] megaraid_sas: Update balance count in driver to be in sync of firmware
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com> Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/megaraid/megaraid_sas_fp.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fp.c b/drivers/scsi/megaraid/megaraid_sas_fp.c
index a11df82..b06a240 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fp.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fp.c
@@ -503,8 +503,9 @@ u8 megasas_get_best_arm(struct LD_LOAD_BALANCE_INFO *lbInfo, u8 arm, u64 block,
diff1 = ABS_DIFF(block, lbInfo->last_accessed_block[1]);
bestArm = (diff0 <= diff1 ? 0 : 1);
- if ((bestArm == arm && pend0 > pend1 + 16) ||
- (bestArm != arm && pend1 > pend0 + 16))
+ /*Make balance count from 16 to 4 to keep driver in sync with Firmware*/
+ if ((bestArm == arm && pend0 > pend1 + 4) ||
+ (bestArm != arm && pend1 > pend0 + 4))
bestArm ^= 1;
/* Update the last accessed block on the correct pd */