diff options
| author | James Smart <jsmart2021@gmail.com> | 2018-02-22 19:18:46 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-02-23 04:39:29 +0300 |
| commit | 7365f6fdbba559f7e814519fafe6e4956f68b6be (patch) | |
| tree | a14b872e0e29534d97dd5f758ca001e4b16d21ef /drivers/scsi/lpfc/lpfc_sli4.h | |
| parent | fbd8a6ba65443a8a79183edd9c2e1ad302339063 (diff) | |
| download | linux-7365f6fdbba559f7e814519fafe6e4956f68b6be.tar.xz | |
scsi: lpfc: Add if_type=6 support for cycling valid bits
Traditional SLI4 required the driver to clear Valid bits on
EQEs and CQEs after consuming them.
The new if_type=6 hardware will cycle the value for what is
valid on each queue itteration. The driver no longer has to
touch the valid bits. This also means all the cpu cache
dirtying and perhaps flush/refill's done by the hardware
in accessing the EQ/CQ elements is eliminated.
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_sli4.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli4.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h index 708167b309bd..cf64aca82bd0 100644 --- a/drivers/scsi/lpfc/lpfc_sli4.h +++ b/drivers/scsi/lpfc/lpfc_sli4.h @@ -216,6 +216,7 @@ struct lpfc_queue { struct work_struct spwork; uint64_t isr_timestamp; + uint8_t qe_valid; struct lpfc_queue *assoc_qp; union sli4_qe qe[1]; /* array to index entries (must be last) */ }; @@ -486,6 +487,8 @@ struct lpfc_pc_sli4_params { uint8_t mqv; uint8_t wqv; uint8_t rqv; + uint8_t eqav; + uint8_t cqav; uint8_t wqsize; #define LPFC_WQ_SZ64_SUPPORT 1 #define LPFC_WQ_SZ128_SUPPORT 2 |