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| author | James Smart <james.smart@avagotech.com> | 2015-05-22 16:42:38 +0200 |
|---|---|---|
| committer | James Bottomley <JBottomley@Odin.com> | 2015-06-13 17:20:59 +0200 |
| commit | 8b0dff14164d3f43eba8365950b506d898e0e1e6 (patch) | |
| tree | 06cd8324d0a8b2cfab5783e58cc7298c2a61347f /drivers/scsi/lpfc/lpfc_scsi.h | |
| parent | lpfc: Devices are not discovered during takeaway/giveback testing (diff) | |
| download | linux-8b0dff14164d3f43eba8365950b506d898e0e1e6.tar.xz linux-8b0dff14164d3f43eba8365950b506d898e0e1e6.zip | |
lpfc: Add support for using block multi-queue
With blk-mq support in the mid-layer, lpfc can do IO steering based
on the information in the request tag. This patch allows lpfc to use
blk-mq if enabled. If not enabled, we fall back into the emulex-internal
affinity mappings.
This feature can be turned on via CONFIG_SCSI_MQ_DEFAULT or passing
scsi_mod.use_blk_mq=Y as a parameter to the kernel.
Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: James Smart <james.smart@avagotech.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_scsi.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_scsi.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.h b/drivers/scsi/lpfc/lpfc_scsi.h index 474e30cdee6e..18b9260ccfac 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.h +++ b/drivers/scsi/lpfc/lpfc_scsi.h @@ -184,3 +184,6 @@ struct lpfc_scsi_buf { #define FIND_FIRST_OAS_LUN 0 #define NO_MORE_OAS_LUN -1 #define NOT_OAS_ENABLED_LUN NO_MORE_OAS_LUN + +int lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba, + struct lpfc_scsi_buf *lpfc_cmd); |