diff options
| author | James Smart <jsmart2021@gmail.com> | 2018-02-22 08:18:48 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-02-22 20:39:29 -0500 |
| commit | 0bc2b7c5317bd51df571e9d1131547901215f6c9 (patch) | |
| tree | e33cfe55cf2a5ce43dbbb5d9a88e5ff8b9dcd97e /drivers/scsi/lpfc/lpfc_init.c | |
| parent | 1feb8204a12ed7987bffa75311754edc1367680f (diff) | |
| download | linux-0bc2b7c5317bd51df571e9d1131547901215f6c9.tar.bz2 | |
scsi: lpfc: Add embedded data pointers for enhanced performance
The current driver isn't taking advantage of a performance hint whereby
the initial data buffer descriptor can be placed in the WQE as well as
the SGL.
Add the logic to detect support for the feature and to use it when
supported.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_init.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_init.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index af92c3c681f7..ecb42cae71f2 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -10608,6 +10608,19 @@ lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; } + /* Only embed PBDE for if_type 6 */ + if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == + LPFC_SLI_INTF_IF_TYPE_6) { + phba->fcp_embed_pbde = 1; + phba->nvme_embed_pbde = 1; + } + + /* PBDE support requires xib be set */ + if (!bf_get(cfg_xib, mbx_sli4_parameters)) { + phba->fcp_embed_pbde = 0; + phba->nvme_embed_pbde = 0; + } + /* * To support Suppress Response feature we must satisfy 3 conditions. * lpfc_suppress_rsp module parameter must be set (default). @@ -10639,6 +10652,13 @@ lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) else phba->fcp_embed_io = 0; + lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME, + "6422 XIB %d: FCP %d %d NVME %d %d %d\n", + bf_get(cfg_xib, mbx_sli4_parameters), + phba->fcp_embed_pbde, phba->fcp_embed_io, + phba->nvme_support, phba->nvme_embed_pbde, + phba->cfg_suppress_rsp); + if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) && (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) && (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT)) |