Commit 233673e4 authored by Lijun Ou's avatar Lijun Ou Committed by Jason Gunthorpe
Browse files

RDMA/hns: Encapsulate and simplify qp state transition 



This patch move the codes of qp state transition into the new function as
well as simplify the logic for other qp states transition.

Signed-off-by: default avatarLijun Ou <oulijun@huawei.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent 9f507101

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

+16 −15
Original line number Diff line number Diff line
@@ -3670,6 +3670,21 @@ static int modify_qp_rtr_to_rts(struct ib_qp *ibqp, 
	return 0;

}



static inline bool hns_roce_v2_check_qp_stat(enum ib_qp_state cur_state,

					     enum ib_qp_state new_state)

{



	if ((cur_state != IB_QPS_RESET &&

	    (new_state == IB_QPS_ERR || new_state == IB_QPS_RESET)) ||

	    ((cur_state == IB_QPS_RTS || cur_state == IB_QPS_SQD) &&

	    (new_state == IB_QPS_RTS || new_state == IB_QPS_SQD)) ||

	    (cur_state == IB_QPS_SQE && new_state == IB_QPS_RTS))

		return true;



	return false;



}



static int hns_roce_v2_modify_qp(struct ib_qp *ibqp,

				 const struct ib_qp_attr *attr,

				 int attr_mask, enum ib_qp_state cur_state,
@@ -3711,21 +3726,7 @@ static int hns_roce_v2_modify_qp(struct ib_qp *ibqp, 
					   qpc_mask);

		if (ret)

			goto out;

	} else if ((cur_state == IB_QPS_RTS && new_state == IB_QPS_RTS) ||

		   (cur_state == IB_QPS_SQE && new_state == IB_QPS_RTS) ||

		   (cur_state == IB_QPS_RTS && new_state == IB_QPS_SQD) ||

		   (cur_state == IB_QPS_SQD && new_state == IB_QPS_SQD) ||

		   (cur_state == IB_QPS_SQD && new_state == IB_QPS_RTS) ||

		   (cur_state == IB_QPS_INIT && new_state == IB_QPS_RESET) ||

		   (cur_state == IB_QPS_RTR && new_state == IB_QPS_RESET) ||

		   (cur_state == IB_QPS_RTS && new_state == IB_QPS_RESET) ||

		   (cur_state == IB_QPS_ERR && new_state == IB_QPS_RESET) ||

		   (cur_state == IB_QPS_INIT && new_state == IB_QPS_ERR) ||

		   (cur_state == IB_QPS_RTR && new_state == IB_QPS_ERR) ||

		   (cur_state == IB_QPS_RTS && new_state == IB_QPS_ERR) ||

		   (cur_state == IB_QPS_SQD && new_state == IB_QPS_ERR) ||

		   (cur_state == IB_QPS_SQE && new_state == IB_QPS_ERR) ||

		   (cur_state == IB_QPS_ERR && new_state == IB_QPS_ERR)) {

	} else if (hns_roce_v2_check_qp_stat(cur_state, new_state)) {

		/* Nothing */

		;

	} else {

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