diff options
Diffstat (limited to 'drivers/infiniband/hw/hns/hns_roce_hw_v2.c')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 43 |
1 files changed, 18 insertions, 25 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index 79294f278b26..934a9c7eefe4 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -239,10 +239,10 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp, struct device *dev = hr_dev->dev; struct hns_roce_v2_db sq_db; struct ib_qp_attr attr; - unsigned int sge_ind; unsigned int owner_bit; + unsigned int sge_idx; + unsigned int wqe_idx; unsigned long flags; - unsigned int ind; void *wqe = NULL; bool loopback; int attr_mask; @@ -269,8 +269,7 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp, } spin_lock_irqsave(&qp->sq.lock, flags); - ind = qp->sq_next_wqe; - sge_ind = qp->next_sge; + sge_idx = qp->next_sge; for (nreq = 0; wr; ++nreq, wr = wr->next) { if (hns_roce_wq_overflow(&qp->sq, nreq, qp->ibqp.send_cq)) { @@ -279,6 +278,8 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp, goto out; } + wqe_idx = (qp->sq.head + nreq) & (qp->sq.wqe_cnt - 1); + if (unlikely(wr->num_sge > qp->sq.max_gs)) { dev_err(dev, "num_sge=%d > qp->sq.max_gs=%d\n", wr->num_sge, qp->sq.max_gs); @@ -287,10 +288,8 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp, goto out; } - wqe = get_send_wqe(qp, ind & (qp->sq.wqe_cnt - 1)); - qp->sq.wrid[(qp->sq.head + nreq) & (qp->sq.wqe_cnt - 1)] = - wr->wr_id; - + wqe = get_send_wqe(qp, wqe_idx); + qp->sq.wrid[wqe_idx] = wr->wr_id; owner_bit = ~(((qp->sq.head + nreq) >> ilog2(qp->sq.wqe_cnt)) & 0x1); tmp_len = 0; @@ -373,7 +372,7 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp, roce_set_field(ud_sq_wqe->byte_20, V2_UD_SEND_WQE_BYTE_20_MSG_START_SGE_IDX_M, V2_UD_SEND_WQE_BYTE_20_MSG_START_SGE_IDX_S, - sge_ind & (qp->sge.sge_cnt - 1)); + sge_idx & (qp->sge.sge_cnt - 1)); roce_set_field(ud_sq_wqe->byte_24, V2_UD_SEND_WQE_BYTE_24_UDPSPN_M, @@ -423,8 +422,7 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp, memcpy(&ud_sq_wqe->dgid[0], &ah->av.dgid[0], GID_LEN_V2); - set_extend_sge(qp, wr, &sge_ind); - ind++; + set_extend_sge(qp, wr, &sge_idx); } else if (ibqp->qp_type == IB_QPT_RC) { rc_sq_wqe = wqe; memset(rc_sq_wqe, 0, sizeof(*rc_sq_wqe)); @@ -553,12 +551,10 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp, wr->num_sge); } else if (wr->opcode != IB_WR_REG_MR) { ret = set_rwqe_data_seg(ibqp, wr, rc_sq_wqe, - wqe, &sge_ind, bad_wr); + wqe, &sge_idx, bad_wr); if (ret) goto out; } - - ind++; } else { dev_err(dev, "Illegal qp_type(0x%x)\n", ibqp->qp_type); spin_unlock_irqrestore(&qp->sq.lock, flags); @@ -588,8 +584,7 @@ out: hns_roce_write64(hr_dev, (__le32 *)&sq_db, qp->sq.db_reg_l); - qp->sq_next_wqe = ind; - qp->next_sge = sge_ind; + qp->next_sge = sge_idx; if (qp->state == IB_QPS_ERR) { attr_mask = IB_QP_STATE; @@ -623,13 +618,12 @@ static int hns_roce_v2_post_recv(struct ib_qp *ibqp, unsigned long flags; void *wqe = NULL; int attr_mask; + u32 wqe_idx; int ret = 0; int nreq; - int ind; int i; spin_lock_irqsave(&hr_qp->rq.lock, flags); - ind = hr_qp->rq.head & (hr_qp->rq.wqe_cnt - 1); if (hr_qp->state == IB_QPS_RESET) { spin_unlock_irqrestore(&hr_qp->rq.lock, flags); @@ -645,6 +639,8 @@ static int hns_roce_v2_post_recv(struct ib_qp *ibqp, goto out; } + wqe_idx = (hr_qp->rq.head + nreq) & (hr_qp->rq.wqe_cnt - 1); + if (unlikely(wr->num_sge > hr_qp->rq.max_gs)) { dev_err(dev, "rq:num_sge=%d > qp->sq.max_gs=%d\n", wr->num_sge, hr_qp->rq.max_gs); @@ -653,7 +649,7 @@ static int hns_roce_v2_post_recv(struct ib_qp *ibqp, goto out; } - wqe = get_recv_wqe(hr_qp, ind); + wqe = get_recv_wqe(hr_qp, wqe_idx); dseg = (struct hns_roce_v2_wqe_data_seg *)wqe; for (i = 0; i < wr->num_sge; i++) { if (!wr->sg_list[i].length) @@ -669,8 +665,8 @@ static int hns_roce_v2_post_recv(struct ib_qp *ibqp, /* rq support inline data */ if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RQ_INLINE) { - sge_list = hr_qp->rq_inl_buf.wqe_list[ind].sg_list; - hr_qp->rq_inl_buf.wqe_list[ind].sge_cnt = + sge_list = hr_qp->rq_inl_buf.wqe_list[wqe_idx].sg_list; + hr_qp->rq_inl_buf.wqe_list[wqe_idx].sge_cnt = (u32)wr->num_sge; for (i = 0; i < wr->num_sge; i++) { sge_list[i].addr = @@ -679,9 +675,7 @@ static int hns_roce_v2_post_recv(struct ib_qp *ibqp, } } - hr_qp->rq.wrid[ind] = wr->wr_id; - - ind = (ind + 1) & (hr_qp->rq.wqe_cnt - 1); + hr_qp->rq.wrid[wqe_idx] = wr->wr_id; } out: @@ -4465,7 +4459,6 @@ static int hns_roce_v2_modify_qp(struct ib_qp *ibqp, hr_qp->rq.tail = 0; hr_qp->sq.head = 0; hr_qp->sq.tail = 0; - hr_qp->sq_next_wqe = 0; hr_qp->next_sge = 0; if (hr_qp->rq.wqe_cnt) *hr_qp->rdb.db_record = 0; |