Use BlueFlame for RDMA Write with immediate without any data (no s/g) too.
This improves latency.
Signed-off-by: Dotan Barak <dot...@dev.mellanox.co.il>
Reviewed-by: Jack Morgenstein <ja...@dev.mellanox.co.il>
---
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
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