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nvme,rdma: optimize nvme_rdma_post_recv

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Move the ibv_recv_wr initialization in
nvme_rdma_alloc_rsps. Thus we can save some
CPU times

Change-Id: Id449b2684290431f8b3ba97ec4058171d34038bf
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
This commit is contained in:
Ziye Yang 2017-02-22 11:00:17 +08:00 committed by Jim Harris
parent b89e758c8d
commit 27cf11d04e
1 changed files with 5 additions and 5 deletions
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10
lib/nvme/nvme_rdma.c
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@ -247,11 +247,6 @@ nvme_rdma_post_recv(struct nvme_rdma_qpair *rqpair, uint16_t rsp_idx)
int rc;
wr = &rqpair->rsp_recv_wrs[rsp_idx];
wr->wr_id = rsp_idx;
wr->next = NULL;
wr->sg_list = &rqpair->rsp_sgls[rsp_idx];
wr->num_sge = 1;
nvme_rdma_trace_ibv_sge(wr->sg_list);
rc = ibv_post_recv(rqpair->cm_id->qp, wr, &bad_wr);
@ -320,6 +315,11 @@ nvme_rdma_alloc_rsps(struct nvme_rdma_qpair *rqpair)
rsp_sgl->length = sizeof(rqpair->rsps[i]);
rsp_sgl->lkey = rqpair->rsp_mr->lkey;
rqpair->rsp_recv_wrs[i].wr_id = i;
rqpair->rsp_recv_wrs[i].next = NULL;
rqpair->rsp_recv_wrs[i].sg_list = rsp_sgl;
rqpair->rsp_recv_wrs[i].num_sge = 1;
if (nvme_rdma_post_recv(rqpair, i)) {
SPDK_ERRLOG("Unable to post connection rx desc\n");
goto fail;