diff options
| author | James Smart <jsmart2021@gmail.com> | 2018-01-30 15:58:58 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-02-12 11:43:24 -0500 |
| commit | 20aefac3a9a23b56db43f1fe1b3ae72c87e39137 (patch) | |
| tree | fffcdcb4cea4e1780a6a7c4597e48f158580e573 /drivers/scsi/lpfc/lpfc_init.c | |
| parent | c1dd9111b7f78a90bccd2e4abb9b9bb6319a4c64 (diff) | |
scsi: lpfc: Validate adapter support for SRIU option
When using the special option to suppress the response iu, ensure the
adapter fully supports the feature by checking feature flags from the
adapter and validating the support when formatting the WQE.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
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 | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index aa7872a7b4932..f2d2faef8710b 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -10473,8 +10473,19 @@ lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; } - if (bf_get(cfg_xib, mbx_sli4_parameters) && phba->cfg_suppress_rsp) + /* + * To support Suppress Response feature we must satisfy 3 conditions. + * lpfc_suppress_rsp module parameter must be set (default). + * In SLI4-Parameters Descriptor: + * Extended Inline Buffers (XIB) must be supported. + * Suppress Response IU Not Supported (SRIUNS) must NOT be supported + * (double negative). + */ + if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) && + !(bf_get(cfg_nosr, mbx_sli4_parameters))) phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP; + else + phba->cfg_suppress_rsp = 0; if (bf_get(cfg_eqdr, mbx_sli4_parameters)) phba->sli.sli_flag |= LPFC_SLI_USE_EQDR; |