From b012f0ad5321e86d61f5c9eabba3320347221d06 Mon Sep 17 00:00:00 2001 From: Md Haris Iqbal Date: Mon, 14 Jun 2021 11:03:35 +0200 Subject: [PATCH] RDMA/rtrs: RDMA_RXE requires more number of WR When using rdma_rxe, post_one_recv() returns ENOMEM error due to the full recv queue. This patch increase the number of WR for receive queue to support all devices. Link: https://lore.kernel.org/r/20210614090337.29557-4-jinpu.wang@ionos.com Signed-off-by: Md Haris Iqbal Signed-off-by: Jack Wang Signed-off-by: Gioh Kim Reviewed-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/ulp/rtrs/rtrs-clt.c | 7 ++++--- drivers/infiniband/ulp/rtrs/rtrs-srv.c | 2 +- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c index cd53edddfe1f..acf0fde410c3 100644 --- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c +++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c @@ -1579,10 +1579,11 @@ static int create_con_cq_qp(struct rtrs_clt_con *con) lockdep_assert_held(&con->con_mutex); if (con->c.cid == 0) { /* - * One completion for each receive and two for each send - * (send request + registration) + * Two (request + registration) completion for send + * Two for recv if always_invalidate is set on server + * or one for recv. * + 2 for drain and heartbeat - * in case qp gets into error state + * in case qp gets into error state. */ max_send_wr = SERVICE_CON_QUEUE_DEPTH * 2 + 2; max_recv_wr = SERVICE_CON_QUEUE_DEPTH * 2 + 2; diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv.c b/drivers/infiniband/ulp/rtrs/rtrs-srv.c index 04ec3080e9b5..bb73f7762a87 100644 --- a/drivers/infiniband/ulp/rtrs/rtrs-srv.c +++ b/drivers/infiniband/ulp/rtrs/rtrs-srv.c @@ -1656,7 +1656,7 @@ static int create_con(struct rtrs_srv_sess *sess, * + 2 for drain and heartbeat */ max_send_wr = SERVICE_CON_QUEUE_DEPTH * 2 + 2; - max_recv_wr = SERVICE_CON_QUEUE_DEPTH + 2; + max_recv_wr = SERVICE_CON_QUEUE_DEPTH * 2 + 2; cq_size = max_send_wr + max_recv_wr; } else { /*