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Commit e8d18533 authored by oulijun's avatar oulijun Committed by Doug Ledford
Browse files

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: default avatarLijun Ou <oulijun@huawei.com>
Signed-off-by: default avatarWei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: default avatarShaobo Xu <xushaobo2@huawei.com>
Signed-off-by: default avatarYixian Liu <liuyixian@huawei.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent b5fddb7c

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

+5 −0
Original line number Diff line number Diff line
@@ -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,