diff options
| author | James Smart <james.smart@emulex.com> | 2012-08-03 18:35:54 +0200 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-09-14 15:39:22 +0200 |
| commit | 2a76a28314993d27668fc7f9d5b6427facce4318 (patch) | |
| tree | 4d05de5a9562632c4536e1ee9f7c87d964d70e2a /drivers/scsi/lpfc/lpfc_init.c | |
| parent | [SCSI] lpfc 8.3.33: Misc changes to optimize critical path (diff) | |
| download | linux-2a76a28314993d27668fc7f9d5b6427facce4318.tar.xz linux-2a76a28314993d27668fc7f9d5b6427facce4318.zip | |
[SCSI] lpfc 8.3.33: Parallelize SLI-4 Q distribution
Commonize SLI-3/4 Ring/Queue framework, to keep SLI-3 compatibility
Parallelize SLI-4 Q distribution - to use multiple posting/completion queues
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_init.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_init.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 9efe5f82a6a1..176302f0e02c 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -4551,6 +4551,13 @@ lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; } + if (!phba->sli.ring) + phba->sli.ring = (struct lpfc_sli_ring *) + kzalloc(LPFC_SLI3_MAX_RING * + sizeof(struct lpfc_sli_ring), GFP_KERNEL); + if (!phba->sli.ring) + return -ENOMEM; + /* * Since the sg_tablesize is module parameter, the sg_dma_buf_size * used to create the sg_dma_buf_pool must be dynamically calculated. @@ -4710,6 +4717,16 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) sges_per_segment = 2; /* + * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands + * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple. + */ + if (!phba->sli.ring) + phba->sli.ring = kzalloc( + (LPFC_SLI3_MAX_RING + phba->cfg_fcp_eq_count) * + sizeof(struct lpfc_sli_ring), GFP_KERNEL); + if (!phba->sli.ring) + return -ENOMEM; + /* * Since the sg_tablesize is module parameter, the sg_dma_buf_size * used to create the sg_dma_buf_pool must be dynamically calculated. * 2 segments are added since the IOCB needs a command and response bde. @@ -5555,6 +5572,10 @@ lpfc_hba_free(struct lpfc_hba *phba) /* Release the driver assigned board number */ idr_remove(&lpfc_hba_index, phba->brd_no); + /* Free memory allocated with sli rings */ + kfree(phba->sli.ring); + phba->sli.ring = NULL; + kfree(phba); return; } @@ -6924,6 +6945,8 @@ lpfc_sli4_queue_destroy(struct lpfc_hba *phba) int lpfc_sli4_queue_setup(struct lpfc_hba *phba) { + struct lpfc_sli *psli = &phba->sli; + struct lpfc_sli_ring *pring; int rc = -ENOMEM; int fcp_eqidx, fcp_cqidx, fcp_wqidx; int fcp_cq_index = 0; @@ -7107,6 +7130,12 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba) "rc = 0x%x\n", rc); goto out_destroy_mbx_wq; } + + /* Bind this WQ to the ELS ring */ + pring = &psli->ring[LPFC_ELS_RING]; + pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq; + phba->sli4_hba.els_cq->pring = pring; + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", phba->sli4_hba.els_wq->queue_id, @@ -7137,6 +7166,12 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba) "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); goto out_destroy_fcp_wq; } + + /* Bind this WQ to the next FCP ring */ + pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx]; + pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx]; + phba->sli4_hba.fcp_cq[fcp_cq_index]->pring = pring; + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "2591 FCP WQ setup: wq[%d]-id=%d, " "parent cq[%d]-id=%d\n", |