net/smc/smc_ib.c

49 	struct ib_qp_attr qp_attr;
51 	memset(&qp_attr, 0, sizeof(qp_attr));
52 	qp_attr.qp_state = IB_QPS_INIT;
53 	qp_attr.pkey_index = 0;
54 	qp_attr.port_num = lnk->ibport;
55 	qp_attr.qp_access_flags = IB_ACCESS_LOCAL_WRITE
57 	return ib_modify_qp(lnk->roce_qp, &qp_attr,
67 	struct ib_qp_attr qp_attr;
70 	memset(&qp_attr, 0, sizeof(qp_attr));
71 	qp_attr.qp_state = IB_QPS_RTR;
72 	qp_attr.path_mtu = min(lnk->path_mtu, lnk->peer_mtu);
73 	qp_attr.ah_attr.type = RDMA_AH_ATTR_TYPE_ROCE;
74 	rdma_ah_set_port_num(&qp_attr.ah_attr, lnk->ibport);
77 	rdma_ah_set_grh(&qp_attr.ah_attr, NULL, 0, lnk->sgid_index, hop_lim, 0);
78 	rdma_ah_set_dgid_raw(&qp_attr.ah_attr, lnk->peer_gid);
80 		memcpy(&qp_attr.ah_attr.roce.dmac, lnk->lgr->nexthop_mac,
83 		memcpy(&qp_attr.ah_attr.roce.dmac, lnk->peer_mac,
85 	qp_attr.dest_qp_num = lnk->peer_qpn;
86 	qp_attr.rq_psn = lnk->peer_psn; /* starting receive packet seq # */
87 	qp_attr.max_dest_rd_atomic = 1; /* max # of resources for incoming
90 	qp_attr.min_rnr_timer = SMC_QP_MIN_RNR_TIMER;
92 	return ib_modify_qp(lnk->roce_qp, &qp_attr, qp_attr_mask);
97 	struct ib_qp_attr qp_attr;
99 	memset(&qp_attr, 0, sizeof(qp_attr));
100 	qp_attr.qp_state = IB_QPS_RTS;
101 	qp_attr.timeout = SMC_QP_TIMEOUT;	/* local ack timeout */
102 	qp_attr.retry_cnt = SMC_QP_RETRY_CNT;	/* retry count */
103 	qp_attr.rnr_retry = SMC_QP_RNR_RETRY;	/* RNR retries, 7=infinite */
104 	qp_attr.sq_psn = lnk->psn_initial;	/* starting send packet seq # */
105 	qp_attr.max_rd_atomic = 1;	/* # of outstanding RDMA reads and
108 	return ib_modify_qp(lnk->roce_qp, &qp_attr,
116 	struct ib_qp_attr qp_attr;
118 	memset(&qp_attr, 0, sizeof(qp_attr));
119 	qp_attr.qp_state = IB_QPS_ERR;
120 	return ib_modify_qp(lnk->roce_qp, &qp_attr, IB_QP_STATE);
666 	struct ib_qp_init_attr qp_attr = {
687 	lnk->roce_qp = ib_create_qp(lnk->roce_pd, &qp_attr);