diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_init.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_init.c | 42 |
1 files changed, 31 insertions, 11 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index f3cae733ae2d..90fb83f88179 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -3956,7 +3956,7 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) if (phba->sli_rev == LPFC_SLI_REV4) { shost->dma_boundary = phba->sli4_hba.pc_sli4_params.sge_supp_len-1; - shost->sg_tablesize = phba->cfg_sg_seg_cnt; + shost->sg_tablesize = phba->cfg_scsi_seg_cnt; } /* @@ -5919,8 +5919,6 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp */ max_buf_size = (2 * SLI4_PAGE_SIZE); - if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - extra) - phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - extra; /* * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size @@ -5942,9 +5940,16 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; - if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF) - phba->cfg_sg_seg_cnt = - LPFC_MAX_SG_SLI4_SEG_CNT_DIF; + /* + * If supporting DIF, reduce the seg count for scsi to + * allow room for the DIF sges. + */ + if (phba->cfg_enable_bg && + phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF) + phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF; + else + phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt; + } else { /* * The scsi_buf for a regular I/O holds the FCP cmnd, @@ -5958,6 +5963,7 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) /* Total SGEs for scsi_sg_list */ phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra; + phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt; /* * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only @@ -5965,10 +5971,22 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) */ } + /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */ + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { + if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) { + lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT, + "6300 Reducing NVME sg segment " + "cnt to %d\n", + LPFC_MAX_NVME_SEG_CNT); + phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT; + } else + phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt; + } + /* Initialize the host templates with the updated values. */ - lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; - lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; - lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; + lpfc_vport_template.sg_tablesize = phba->cfg_scsi_seg_cnt; + lpfc_template.sg_tablesize = phba->cfg_scsi_seg_cnt; + lpfc_template_no_hr.sg_tablesize = phba->cfg_scsi_seg_cnt; if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; @@ -5977,9 +5995,11 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, - "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n", + "9087 sg_seg_cnt:%d dmabuf_size:%d " + "total:%d scsi:%d nvme:%d\n", phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, - phba->cfg_total_seg_cnt); + phba->cfg_total_seg_cnt, phba->cfg_scsi_seg_cnt, + phba->cfg_nvme_seg_cnt); /* Initialize buffer queue management fields */ INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list); |