diff options
| author | James Smart <jsmart2021@gmail.com> | 2018-06-26 08:24:26 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-07-10 22:15:09 -0400 |
| commit | 414abe0ab66f951efe743a3293cb36ac3255214a (patch) | |
| tree | b02c0d27f741ec53e661717492af9d24c05f0ea2 /drivers/scsi/lpfc/lpfc_scsi.c | |
| parent | 68c9b55deea51151d9da3d45ecc9a5ef72f9dfb1 (diff) | |
scsi: lpfc: Make PBDE optimizations configurable
The PBDE optimizations aren't supported in all firmware revs.
Make optimizations configurable in case there's a side effect on old
firmware.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_scsi.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_scsi.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index a94fb9f8bb44..c31c43f43553 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -3311,12 +3311,13 @@ lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) } /* * Setup the first Payload BDE. For FCoE we just key off - * Performance Hints, for FC we utilize fcp_embed_pbde. + * Performance Hints, for FC we use lpfc_enable_pbde. + * We populate words 13-15 of IOCB/WQE. */ if ((phba->sli3_options & LPFC_SLI4_PERFH_ENABLED) || - phba->fcp_embed_pbde) { + phba->cfg_enable_pbde) { bde = (struct ulp_bde64 *) - &(iocb_cmd->unsli3.sli3Words[5]); + &(iocb_cmd->unsli3.sli3Words[5]); bde->addrLow = first_data_sgl->addr_lo; bde->addrHigh = first_data_sgl->addr_hi; bde->tus.f.bdeSize = @@ -3330,6 +3331,13 @@ lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) sgl->word2 = le32_to_cpu(sgl->word2); bf_set(lpfc_sli4_sge_last, sgl, 1); sgl->word2 = cpu_to_le32(sgl->word2); + + if ((phba->sli3_options & LPFC_SLI4_PERFH_ENABLED) || + phba->cfg_enable_pbde) { + bde = (struct ulp_bde64 *) + &(iocb_cmd->unsli3.sli3Words[5]); + memset(bde, 0, (sizeof(uint32_t) * 3)); + } } /* |