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| author | Chandrakanth Patil <chandrakanth.patil@broadcom.com> | 2019-06-25 16:34:29 +0530 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-06-27 00:07:35 -0400 |
| commit | 7fc557005c454fa053153ac0bf7c7c96f58dab4f (patch) | |
| tree | 076445eeb2b19fe6399a6789531f586caefe0639 /drivers/scsi/megaraid/megaraid_sas_fusion.c | |
| parent | 49f2bf1071f06a430920888ff2d1a89395a3b6b5 (diff) | |
| download | linux-stable-7fc557005c454fa053153ac0bf7c7c96f58dab4f.tar.gz linux-stable-7fc557005c454fa053153ac0bf7c7c96f58dab4f.tar.bz2 linux-stable-7fc557005c454fa053153ac0bf7c7c96f58dab4f.zip | |
scsi: megaraid_sas: Offload Aero RAID5/6 division calculations to driver
For RAID5/RAID6 volumes configured behind Aero, driver will be doing 64bit
division operations on behalf of firmware as controller's ARM CPU is very
slow in this division. Later, driver calculates Q-ARM, P-ARM and Log-ARM and
passes those values to firmware by writing these values to RAID_CONTEXT.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas_fusion.c')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fusion.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index ad18474f06b7..058d22b4fa7b 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -3324,9 +3324,9 @@ void megasas_prepare_secondRaid1_IO(struct megasas_instance *instance, r1_cmd->request_desc->SCSIIO.DevHandle = cmd->r1_alt_dev_handle; r1_cmd->io_request->DevHandle = cmd->r1_alt_dev_handle; r1_cmd->r1_alt_dev_handle = cmd->io_request->DevHandle; - cmd->io_request->RaidContext.raid_context_g35.smid.peer_smid = + cmd->io_request->RaidContext.raid_context_g35.flow_specific.peer_smid = cpu_to_le16(r1_cmd->index); - r1_cmd->io_request->RaidContext.raid_context_g35.smid.peer_smid = + r1_cmd->io_request->RaidContext.raid_context_g35.flow_specific.peer_smid = cpu_to_le16(cmd->index); /*MSIxIndex of both commands request descriptors should be same*/ r1_cmd->request_desc->SCSIIO.MSIxIndex = @@ -3444,7 +3444,7 @@ megasas_complete_r1_command(struct megasas_instance *instance, rctx_g35 = &cmd->io_request->RaidContext.raid_context_g35; fusion = instance->ctrl_context; - peer_smid = le16_to_cpu(rctx_g35->smid.peer_smid); + peer_smid = le16_to_cpu(rctx_g35->flow_specific.peer_smid); r1_cmd = fusion->cmd_list[peer_smid - 1]; scmd_local = cmd->scmd; |