[PATCH 5.4 17/90] net/mlx5: Consider RoCE cap before init RDMA resources

[Greg Kroah-Hartman]

From: Maor Gottlieb <maorg@xxxxxxxxxx>

[ Upstream commit c189716b2a7c1d2d8658e269735273caa1c38b54 ]

Check if RoCE is supported by the device before enable it in
the vport context and create all the RDMA steering objects.

Fixes: 80f09dfc237f ("net/mlx5: Eswitch, enable RoCE loopback traffic")
Signed-off-by: Maor Gottlieb <maorg@xxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/net/ethernet/mellanox/mlx5/core/rdma.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/rdma.c b/drivers/net/ethernet/mellanox/mlx5/core/rdma.c
index 8e0dddc6383f..2389239acadc 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/rdma.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/rdma.c
@@ -156,6 +156,9 @@ void mlx5_rdma_enable_roce(struct mlx5_core_dev *dev)
 {
 	int err;
 
+	if (!MLX5_CAP_GEN(dev, roce))
+		return;
+
 	err = mlx5_nic_vport_enable_roce(dev);
 	if (err) {
 		mlx5_core_err(dev, "Failed to enable RoCE: %d\n", err);
-- 
2.30.2