From: Majd Dibbiny <majd@mellanox.com>
Date: Mon, 30 Oct 2017 14:23:14 +0200
Subject: IB/mlx5: Fix RoCE Address Path fields
Patch-mainline: v4.15-rc1
Git-commit: 2b621851acb34762ca893b2528823215e0d4b98c
References: bsc#1046305 FATE#322943

When working over a RoCE network, the UDP source port should be set only
for statically connected QPs (RC, UC and XRC).

Fixes: 2811ba51b049 ("IB/mlx5: Add RoCE fields to Address Vector")
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/mlx5/qp.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -2283,8 +2283,12 @@ static int mlx5_set_path(struct mlx5_ib_
 		if (err)
 			return err;
 		memcpy(path->rmac, ah->roce.dmac, sizeof(ah->roce.dmac));
-		path->udp_sport = mlx5_get_roce_udp_sport(dev, port,
-							  grh->sgid_index);
+		if (qp->ibqp.qp_type == IB_QPT_RC ||
+		    qp->ibqp.qp_type == IB_QPT_UC ||
+		    qp->ibqp.qp_type == IB_QPT_XRC_INI ||
+		    qp->ibqp.qp_type == IB_QPT_XRC_TGT)
+			path->udp_sport = mlx5_get_roce_udp_sport(dev, port,
+								  grh->sgid_index);
 		path->dci_cfi_prio_sl = (sl & 0x7) << 4;
 		if (gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP)
 			path->ecn_dscp = (grh->traffic_class >> 2) & 0x3f;