diff options
| author | James Smart <jsmart2021@gmail.com> | 2017-08-24 02:55:47 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-08-25 05:29:43 +0300 |
| commit | 44fd7fe3dd2ce9dba873a0522e1eeab9ab5d5651 (patch) | |
| tree | 125bed5530d161319e33bc39c322f601d12c251d /drivers/scsi/lpfc/lpfc_sli4.h | |
| parent | d58734f05ff0aaa787eeedd1e790fee6c9e92af8 (diff) | |
| download | linux-44fd7fe3dd2ce9dba873a0522e1eeab9ab5d5651.tar.xz | |
scsi: lpfc: Add Buffer to Buffer credit recovery support
Add Buffer to buffer credit recovery support to the driver. This is a
negotiated feature with the peer that allows for both sides to detect
dropped RRDY's and FC Frames and recover credit.
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 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h index 7dc8c73b5903..60200385fe00 100644 --- a/drivers/scsi/lpfc/lpfc_sli4.h +++ b/drivers/scsi/lpfc/lpfc_sli4.h @@ -420,6 +420,20 @@ struct lpfc_hba_eq_hdl { #define LPFC_MULTI_CPU_AFFINITY 0xffffffff }; +/*BB Credit recovery value*/ +struct lpfc_bbscn_params { + uint32_t word0; +#define lpfc_bbscn_min_SHIFT 0 +#define lpfc_bbscn_min_MASK 0x0000000F +#define lpfc_bbscn_min_WORD word0 +#define lpfc_bbscn_max_SHIFT 4 +#define lpfc_bbscn_max_MASK 0x0000000F +#define lpfc_bbscn_max_WORD word0 +#define lpfc_bbscn_def_SHIFT 8 +#define lpfc_bbscn_def_MASK 0x0000000F +#define lpfc_bbscn_def_WORD word0 +}; + /* Port Capabilities for SLI4 Parameters */ struct lpfc_pc_sli4_params { uint32_t supported; @@ -551,6 +565,7 @@ struct lpfc_sli4_hba { uint32_t ue_to_rp; struct lpfc_register sli_intf; struct lpfc_pc_sli4_params pc_sli4_params; + struct lpfc_bbscn_params bbscn_params; struct lpfc_hba_eq_hdl *hba_eq_hdl; /* HBA per-WQ handle */ /* Pointers to the constructed SLI4 queues */ |