Commit da43f64b authored by Ziye Yang's avatar Ziye Yang Committed by Daniel Verkamp
Browse files

nvme/rdma: Get right initiatior depth by ibv_device_query 



Change-Id: I125e95dd405c21c5aea852e619801f1ef2de94ee
Signed-off-by: default avatarZiye Yang <ziye.yang@intel.com>
parent 5f78155f

lib/nvme/nvme_rdma.c

+8 −1
Original line number Diff line number Diff line
@@ -518,8 +518,15 @@ nvme_rdma_connect(struct nvme_rdma_qpair *rqpair) 
	struct spdk_nvmf_rdma_request_private_data pdata;

	const union spdk_nvmf_rdma_private_data	*data;

	struct rdma_cm_event *event;

	struct ibv_device_attr attr;

	int ret;



	ret = ibv_query_device(rqpair->cm_id->verbs, &attr);

	if (ret != 0) {

		SPDK_ERRLOG("Failed to query RDMA device attributes.\n");

		return ret;

	}



	memset(&conn_param, 0, sizeof(conn_param));

	/* Note:  the following parameters apply only for PS = RDMA_PS_TCP,

	   and even then it appears that any values supplied here by host
@@ -529,7 +536,7 @@ nvme_rdma_connect(struct nvme_rdma_qpair *rqpair) 
	   replaced.

	*/

	conn_param.responder_resources = 1;  /* 0 or 1*/

	conn_param.initiator_depth = rqpair->max_queue_depth;

	conn_param.initiator_depth = nvme_min(rqpair->max_queue_depth, attr.max_qp_init_rd_atom);

	conn_param.retry_count = 7;

	conn_param.rnr_retry_count = 7;