From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dotan Barak Subject: [PATCH/libmlx4] Use BlueFlame for RDMA_WRITE_WITH_IMM without data requests too Date: Mon, 11 Jul 2011 14:02:09 +0300 Message-ID: <201107111402.10897.dotanb@sw.voltaire.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-rdma@vger.kernel.org Use BlueFlame for RDMA Write with immediate without any data (no s/g) too. This improves latency. Signed-off-by: Dotan Barak Reviewed-by: Jack Morgenstein --- src/qp.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/src/qp.c b/src/qp.c index e046da1..10ccbff 100644 --- a/src/qp.c +++ b/src/qp.c @@ -283,8 +283,11 @@ int mlx4_post_send(struct ibv_qp *ibqp, struct ibv_send_wr *wr, case IBV_WR_RDMA_READ: inl = 1; /* fall through */ - case IBV_WR_RDMA_WRITE: case IBV_WR_RDMA_WRITE_WITH_IMM: + if (!wr->num_sge) + inl = 1; + /* fall through */ + case IBV_WR_RDMA_WRITE: set_raddr_seg(wqe, wr->wr.rdma.remote_addr, wr->wr.rdma.rkey); wqe += sizeof (struct mlx4_wqe_raddr_seg); -- 1.5.3 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html