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| author | Sumit Saxena <sumit.saxena@avagotech.com> | 2016-01-28 21:04:27 +0530 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-02-23 21:27:02 -0500 |
| commit | 8f05024cd3dbd3ec85923f3e8da05bf6db187d57 (patch) | |
| tree | 2402b288fee1a4790d6fc277713f7c81d6a382ed /drivers/scsi/megaraid/megaraid_sas_fp.c | |
| parent | 2216c30523b0a1835b6d522ffe73ca167f199f00 (diff) | |
| download | linux-8f05024cd3dbd3ec85923f3e8da05bf6db187d57.tar.gz linux-8f05024cd3dbd3ec85923f3e8da05bf6db187d57.tar.bz2 linux-8f05024cd3dbd3ec85923f3e8da05bf6db187d57.zip | |
megaraid_sas: Fastpath region lock bypass
Firmware will fill out per-LD data to tell driver whether a particular
LD supports region lock bypass. If yes, then driver will send non-FP
LDIO to region lock bypass FIFO. With this change in driver, firmware
will optimize certain code to improve performance.
Signed-off-by: Kashyap Desai <kashyap.desai@avagotech.com>
Signed-off-by: Sumit Saxena <sumit.saxena@avagotech.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas_fp.c')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fp.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fp.c b/drivers/scsi/megaraid/megaraid_sas_fp.c index 741509b35617..e413113c86ac 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fp.c +++ b/drivers/scsi/megaraid/megaraid_sas_fp.c @@ -1020,6 +1020,8 @@ MR_BuildRaidContext(struct megasas_instance *instance, /* assume this IO needs the full row - we'll adjust if not true */ regSize = stripSize; + io_info->do_fp_rlbypass = raid->capability.fpBypassRegionLock; + /* Check if we can send this I/O via FastPath */ if (raid->capability.fpCapable) { if (isRead) |