diff options
| author | James Smart <jsmart2021@gmail.com> | 2018-02-22 19:18:48 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-02-23 04:39:29 +0300 |
| commit | 0bc2b7c5317bd51df571e9d1131547901215f6c9 (patch) | |
| tree | e33cfe55cf2a5ce43dbbb5d9a88e5ff8b9dcd97e /drivers/scsi/lpfc/lpfc_hw4.h | |
| parent | 1feb8204a12ed7987bffa75311754edc1367680f (diff) | |
| download | linux-0bc2b7c5317bd51df571e9d1131547901215f6c9.tar.xz | |
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_hw4.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_hw4.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h index be8227dfa086..ed5e870c58c3 100644 --- a/drivers/scsi/lpfc/lpfc_hw4.h +++ b/drivers/scsi/lpfc/lpfc_hw4.h @@ -4226,6 +4226,9 @@ struct wqe_common { #define wqe_irsp_SHIFT 4 #define wqe_irsp_MASK 0x00000001 #define wqe_irsp_WORD word11 +#define wqe_pbde_SHIFT 5 +#define wqe_pbde_MASK 0x00000001 +#define wqe_pbde_WORD word11 #define wqe_sup_SHIFT 6 #define wqe_sup_MASK 0x00000001 #define wqe_sup_WORD word11 |