From: oulijun Date: Fri, 10 Nov 2017 08:55:51 +0000 (+0800) Subject: RDMA/hns: Set the owner field of SQWQE in hip08 RoCE X-Git-Tag: v5.15~9977^2~59 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e8d1853357d237e6af69e384d6b05a23e3a70b93;p=platform%2Fkernel%2Flinux-starfive.git RDMA/hns: Set the owner field of SQWQE in hip08 RoCE the owner need to be set when posting sqwqe in hip08 RoCE. The owner be used according to the below algorithm: The value of owner should be 1 in the first lap, it should be 0 in the second lap and in turn. Signed-off-by: Lijun Ou Signed-off-by: Wei Hu (Xavier) Signed-off-by: Shaobo Xu Signed-off-by: Yixian Liu Signed-off-by: Doug Ledford --- diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index c1f3325..7008fa3 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -62,6 +62,7 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, struct hns_roce_v2_db sq_db; unsigned int sge_ind = 0; unsigned int wqe_sz = 0; + unsigned int owner_bit; unsigned long flags; unsigned int ind; void *wqe = NULL; @@ -104,6 +105,7 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, qp->sq.wrid[(qp->sq.head + nreq) & (qp->sq.wqe_cnt - 1)] = wr->wr_id; + owner_bit = ~(qp->sq.head >> ilog2(qp->sq.wqe_cnt)) & 0x1; rc_sq_wqe = wqe; memset(rc_sq_wqe, 0, sizeof(*rc_sq_wqe)); for (i = 0; i < wr->num_sge; i++) @@ -120,6 +122,9 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, roce_set_bit(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_CQE_S, (wr->send_flags & IB_SEND_SIGNALED) ? 1 : 0); + roce_set_bit(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_OWNER_S, + owner_bit); + switch (wr->opcode) { case IB_WR_RDMA_READ: roce_set_field(rc_sq_wqe->byte_4,