diff options
| author | Sumit.Saxena@lsi.com <Sumit.Saxena@lsi.com> | 2013-05-22 03:00:22 -0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-06-24 20:22:18 -0400 |
| commit | 70b47b881e1e50360cba17417f779953956b960d (patch) | |
| tree | c65baa88b70ef85af27ffbd4a628144d768cefcd /drivers | |
| parent | b5bccadd804151d13530351f9a521e893cac5350 (diff) | |
[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')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fp.c | 5 |
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 a11df82474ef..b06a240ee39a 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, | |||
| 503 | diff1 = ABS_DIFF(block, lbInfo->last_accessed_block[1]); | 503 | diff1 = ABS_DIFF(block, lbInfo->last_accessed_block[1]); |
| 504 | bestArm = (diff0 <= diff1 ? 0 : 1); | 504 | bestArm = (diff0 <= diff1 ? 0 : 1); |
| 505 | 505 | ||
| 506 | if ((bestArm == arm && pend0 > pend1 + 16) || | 506 | /*Make balance count from 16 to 4 to keep driver in sync with Firmware*/ |
| 507 | (bestArm != arm && pend1 > pend0 + 16)) | 507 | if ((bestArm == arm && pend0 > pend1 + 4) || |
| 508 | (bestArm != arm && pend1 > pend0 + 4)) | ||
| 508 | bestArm ^= 1; | 509 | bestArm ^= 1; |
| 509 | 510 | ||
| 510 | /* Update the last accessed block on the correct pd */ | 511 | /* Update the last accessed block on the correct pd */ |