diff options
| author | Shivasharan S <shivasharan.srikanteshwara@broadcom.com> | 2017-02-10 00:59:24 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-02-13 07:26:22 -0500 |
| commit | b41c0a4aa7c0fc1f98648c020358598498d48f06 (patch) | |
| tree | cf9971c9a1671e44a05c29c72a9885d68b8515e3 /drivers/scsi/megaraid | |
| parent | 95c060869e6872ea03a4a9d15236adcffb1d8b07 (diff) | |
scsi: megaraid_sas: set pd_after_lb from MR_BuildRaidContext and initialize pDevHandle to MR_DEVHANDLE_INVALID
Issue is limited for Syncro firmware where pd_after_lb is not set but is
accidentally used. Not a functional issue, but results in low
performance due to improper load balancing between two LUNs.
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/megaraid')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fp.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fp.c b/drivers/scsi/megaraid/megaraid_sas_fp.c index 68582d9f9e45..a5517e72ad2f 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fp.c +++ b/drivers/scsi/megaraid/megaraid_sas_fp.c @@ -948,6 +948,7 @@ static u8 mr_spanset_get_phy_params(struct megasas_instance *instance, u32 ld, struct fusion_context *fusion; fusion = instance->ctrl_context; + *pDevHandle = cpu_to_le16(MR_DEVHANDLE_INVALID); /*Get row and span from io_info for Uneven Span IO.*/ row = io_info->start_row; @@ -986,7 +987,6 @@ static u8 mr_spanset_get_phy_params(struct megasas_instance *instance, u32 ld, MR_PdDevHandleGet(r1_alt_pd, map); } } else { - *pDevHandle = cpu_to_le16(MR_DEVHANDLE_INVALID); if ((raid->level >= 5) && ((fusion->adapter_type == THUNDERBOLT_SERIES) || ((fusion->adapter_type == INVADER_SERIES) && @@ -1013,6 +1013,7 @@ static u8 mr_spanset_get_phy_params(struct megasas_instance *instance, u32 ld, (span << RAID_CTX_SPANARM_SPAN_SHIFT) | physArm; io_info->span_arm = pRAID_Context->span_arm; } + io_info->pd_after_lb = pd; return retval; } @@ -1049,7 +1050,7 @@ u8 MR_GetPhyParams(struct megasas_instance *instance, u32 ld, u64 stripRow, struct fusion_context *fusion; fusion = instance->ctrl_context; - + *pDevHandle = cpu_to_le16(MR_DEVHANDLE_INVALID); row = mega_div64_32(stripRow, raid->rowDataSize); @@ -1102,8 +1103,6 @@ u8 MR_GetPhyParams(struct megasas_instance *instance, u32 ld, u64 stripRow, MR_PdDevHandleGet(r1_alt_pd, map); } } else { - /* set dev handle as invalid. */ - *pDevHandle = cpu_to_le16(MR_DEVHANDLE_INVALID); if ((raid->level >= 5) && ((fusion->adapter_type == THUNDERBOLT_SERIES) || ((fusion->adapter_type == INVADER_SERIES) && @@ -1132,6 +1131,7 @@ u8 MR_GetPhyParams(struct megasas_instance *instance, u32 ld, u64 stripRow, (span << RAID_CTX_SPANARM_SPAN_SHIFT) | physArm; io_info->span_arm = pRAID_Context->span_arm; } + io_info->pd_after_lb = pd; return retval; } |