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| author | James Smart <james.smart@avagotech.com> | 2015-05-22 10:42:38 -0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Odin.com> | 2015-06-13 08:20:59 -0700 |
| commit | 8b0dff14164d3f43eba8365950b506d898e0e1e6 (patch) | |
| tree | 06cd8324d0a8b2cfab5783e58cc7298c2a61347f /drivers/scsi/lpfc/lpfc_init.c | |
| parent | 953ceeda97ddfed2c6e0bea3706257d57197f269 (diff) | |
| download | linux-8b0dff14164d3f43eba8365950b506d898e0e1e6.tar.gz linux-8b0dff14164d3f43eba8365950b506d898e0e1e6.tar.bz2 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_init.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_init.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 14424e66b561..f962118da8ed 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -3303,6 +3303,7 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) shost->max_lun = vport->cfg_max_luns; shost->this_id = -1; shost->max_cmd_len = 16; + shost->nr_hw_queues = phba->cfg_fcp_io_channel; if (phba->sli_rev == LPFC_SLI_REV4) { shost->dma_boundary = phba->sli4_hba.pc_sli4_params.sge_supp_len-1; @@ -8980,7 +8981,8 @@ lpfc_sli4_enable_msix(struct lpfc_hba *phba) phba->cfg_fcp_io_channel = vectors; } - lpfc_sli4_set_affinity(phba, vectors); + if (!shost_use_blk_mq(lpfc_shost_from_vport(phba->pport))) + lpfc_sli4_set_affinity(phba, vectors); return rc; cfg_fail_out: |