diff options
Diffstat (limited to 'drivers/infiniband/hw/bnxt_re/qplib_res.h')
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/qplib_res.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_res.h b/drivers/infiniband/hw/bnxt_re/qplib_res.h index 5fa278e744eb..95b645dbbc2d 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_res.h +++ b/drivers/infiniband/hw/bnxt_re/qplib_res.h @@ -133,6 +133,13 @@ struct bnxt_qplib_hwq { u8 is_user; }; +struct bnxt_qplib_db_info { + void __iomem *db; + void __iomem *priv_db; + struct bnxt_qplib_hwq *hwq; + u32 xid; +}; + /* Tables */ struct bnxt_qplib_pd_tbl { unsigned long *tbl; @@ -290,4 +297,75 @@ void bnxt_qplib_free_ctx(struct bnxt_qplib_res *res, int bnxt_qplib_alloc_ctx(struct bnxt_qplib_res *res, struct bnxt_qplib_ctx *ctx, bool virt_fn, bool is_p5); + +static inline void bnxt_qplib_ring_db32(struct bnxt_qplib_db_info *info, + bool arm) +{ + u32 key; + + key = info->hwq->cons & (info->hwq->max_elements - 1); + key |= (CMPL_DOORBELL_IDX_VALID | + (CMPL_DOORBELL_KEY_CMPL & CMPL_DOORBELL_KEY_MASK)); + if (!arm) + key |= CMPL_DOORBELL_MASK; + writel(key, info->db); +} + +static inline void bnxt_qplib_ring_db(struct bnxt_qplib_db_info *info, + u32 type) +{ + u64 key = 0; + + key = (info->xid & DBC_DBC_XID_MASK) | DBC_DBC_PATH_ROCE | type; + key <<= 32; + key |= (info->hwq->cons & (info->hwq->max_elements - 1)) & + DBC_DBC_INDEX_MASK; + writeq(key, info->db); +} + +static inline void bnxt_qplib_ring_prod_db(struct bnxt_qplib_db_info *info, + u32 type) +{ + u64 key = 0; + + key = (info->xid & DBC_DBC_XID_MASK) | DBC_DBC_PATH_ROCE | type; + key <<= 32; + key |= (info->hwq->prod & (info->hwq->max_elements - 1)) & + DBC_DBC_INDEX_MASK; + writeq(key, info->db); +} + +static inline void bnxt_qplib_armen_db(struct bnxt_qplib_db_info *info, + u32 type) +{ + u64 key = 0; + + key = (info->xid & DBC_DBC_XID_MASK) | DBC_DBC_PATH_ROCE | type; + key <<= 32; + writeq(key, info->priv_db); +} + +static inline void bnxt_qplib_srq_arm_db(struct bnxt_qplib_db_info *info, + u32 th) +{ + u64 key = 0; + + key = (info->xid & DBC_DBC_XID_MASK) | DBC_DBC_PATH_ROCE | th; + key <<= 32; + key |= th & DBC_DBC_INDEX_MASK; + writeq(key, info->priv_db); +} + +static inline void bnxt_qplib_ring_nq_db(struct bnxt_qplib_db_info *info, + struct bnxt_qplib_chip_ctx *cctx, + bool arm) +{ + u32 type; + + type = arm ? DBC_DBC_TYPE_NQ_ARM : DBC_DBC_TYPE_NQ; + if (bnxt_qplib_is_chip_gen_p5(cctx)) + bnxt_qplib_ring_db(info, type); + else + bnxt_qplib_ring_db32(info, arm); +} #endif /* __BNXT_QPLIB_RES_H__ */ |