diff options
Diffstat (limited to 'drivers/infiniband/hw/bnxt_re/qplib_fp.h')
-rw-r--r-- | drivers/infiniband/hw/bnxt_re/qplib_fp.h | 60 |
1 files changed, 56 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.h b/drivers/infiniband/hw/bnxt_re/qplib_fp.h index bf96a74098d3..f50784405e27 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_fp.h +++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.h @@ -119,6 +119,7 @@ struct bnxt_qplib_swq { u8 flags; u32 start_psn; u32 next_psn; + u32 slot_idx; u8 slots; struct sq_psn_search *psn_search; struct sq_psn_search_ext *psn_ext; @@ -349,11 +350,18 @@ struct bnxt_qplib_qp { (!!((hdr)->cqe_type_toggle & CQ_BASE_TOGGLE) == \ !((raw_cons) & (cp_bit))) -static inline bool bnxt_qplib_queue_full(struct bnxt_qplib_q *qplib_q) +static inline bool bnxt_qplib_queue_full(struct bnxt_qplib_q *que, + u8 slots) { - return HWQ_CMP((qplib_q->hwq.prod + qplib_q->q_full_delta), - &qplib_q->hwq) == HWQ_CMP(qplib_q->hwq.cons, - &qplib_q->hwq); + struct bnxt_qplib_hwq *hwq; + int avail; + + hwq = &que->hwq; + /* False full is possible, retrying post-send makes sense */ + avail = hwq->cons - hwq->prod; + if (hwq->cons <= hwq->prod) + avail += hwq->depth; + return avail <= slots; } struct bnxt_qplib_cqe { @@ -554,4 +562,48 @@ static inline void bnxt_qplib_swq_mod_start(struct bnxt_qplib_q *que, u32 idx) que->swq_start = que->swq[idx].next_idx; } +static inline u32 bnxt_qplib_get_depth(struct bnxt_qplib_q *que) +{ + return (que->wqe_size * que->max_wqe) / sizeof(struct sq_sge); +} + +static inline u32 bnxt_qplib_set_sq_size(struct bnxt_qplib_q *que, u8 wqe_mode) +{ + return (wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC) ? + que->max_wqe : bnxt_qplib_get_depth(que); +} + +static inline u32 bnxt_qplib_set_sq_max_slot(u8 wqe_mode) +{ + return (wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC) ? + sizeof(struct sq_send) / sizeof(struct sq_sge) : 1; +} + +static inline u32 bnxt_qplib_set_rq_max_slot(u32 wqe_size) +{ + return (wqe_size / sizeof(struct sq_sge)); +} + +static inline u16 __xlate_qfd(u16 delta, u16 wqe_bytes) +{ + /* For Cu/Wh delta = 128, stride = 16, wqe_bytes = 128 + * For Gen-p5 B/C mode delta = 0, stride = 16, wqe_bytes = 128. + * For Gen-p5 delta = 0, stride = 16, 32 <= wqe_bytes <= 512. + * when 8916 is disabled. + */ + return (delta * wqe_bytes) / sizeof(struct sq_sge); +} + +static inline u16 bnxt_qplib_calc_ilsize(struct bnxt_qplib_swqe *wqe, u16 max) +{ + u16 size = 0; + int indx; + + for (indx = 0; indx < wqe->num_sge; indx++) + size += wqe->sg_list[indx].size; + if (size > max) + size = max; + + return size; +} #endif /* __BNXT_QPLIB_FP_H__ */ |