From: Bart Van Assche <bvanassche@acm.org>
Date: Mon, 25 May 2020 17:22:11 +0000 (-0700)
Subject: RDMA/srpt: Reduce max_recv_sge to 1
X-Git-Tag: v5.10.7~2431^2~29
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=66ced2eb2ab95f6ebe8033e2e0a2e61f2615377c;p=platform%2Fkernel%2Flinux-rpi.git

RDMA/srpt: Reduce max_recv_sge to 1

Since srpt_post_recv() always sets num_sge to 1, reduce the max_recv_sge
parameter that is used at queue pair allocation time to 1.

Link: https://lore.kernel.org/r/20200525172212.14413-4-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
---

diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index b96e91e..84f80f3 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -1818,16 +1818,12 @@ retry:
 	qp_init->cap.max_rdma_ctxs = sq_size / 2;
 	qp_init->cap.max_send_sge = min(attrs->max_send_sge,
 					SRPT_MAX_SG_PER_WQE);
-	qp_init->cap.max_recv_sge = min(attrs->max_recv_sge,
-					SRPT_MAX_SG_PER_WQE);
+	qp_init->cap.max_recv_sge = 1;
 	qp_init->port_num = ch->sport->port;
-	if (sdev->use_srq) {
+	if (sdev->use_srq)
 		qp_init->srq = sdev->srq;
-	} else {
+	else
 		qp_init->cap.max_recv_wr = ch->rq_size;
-		qp_init->cap.max_recv_sge = min(attrs->max_recv_sge,
-						SRPT_MAX_SG_PER_WQE);
-	}
 
 	if (ch->using_rdma_cm) {
 		ret = rdma_create_qp(ch->rdma_cm.cm_id, sdev->pd, qp_init);