IB/mlx5: Expose vlan offloads capabilities

Check device's capabilities and report which raw packet capabilities
are supported.

Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@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>

1 files changed, 12 insertions, 2 deletions

diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index f8fe98d22965..fe37da2be26f 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -581,8 +581,15 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
                 props->device_cap_flags |= IB_DEVICE_BLOCK_MULTICAST_LOOPBACK;
 
         if (MLX5_CAP_GEN(dev->mdev, eth_net_offloads)) {
-                if (MLX5_CAP_ETH(mdev, csum_cap))
+                if (MLX5_CAP_ETH(mdev, csum_cap)) {
+                        /* Legacy bit to support old userspace libraries */
                         props->device_cap_flags |= IB_DEVICE_RAW_IP_CSUM;
+                        props->raw_packet_caps |= IB_RAW_PACKET_CAP_IP_CSUM;
+                }
+
+                if (MLX5_CAP_ETH(dev->mdev, vlan_cap))
+                        props->raw_packet_caps |=
+                                IB_RAW_PACKET_CAP_CVLAN_STRIPPING;
 
                 if (field_avail(typeof(resp), tso_caps, uhw->outlen)) {
                         max_tso = MLX5_CAP_ETH(mdev, max_lso_cap);
@@ -621,8 +628,11 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
         }
 
         if (MLX5_CAP_GEN(dev->mdev, eth_net_offloads) &&
-            MLX5_CAP_ETH(dev->mdev, scatter_fcs))
+            MLX5_CAP_ETH(dev->mdev, scatter_fcs)) {
+                /* Legacy bit to support old userspace libraries */
                 props->device_cap_flags |= IB_DEVICE_RAW_SCATTER_FCS;
+                props->raw_packet_caps |= IB_RAW_PACKET_CAP_SCATTER_FCS;
+        }
 
         if (mlx5_get_flow_namespace(dev->mdev, MLX5_FLOW_NAMESPACE_BYPASS))
                 props->device_cap_flags |= IB_DEVICE_MANAGED_FLOW_STEERING;