aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/vdpa/mlx5/net/mlx5_vnet.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/vdpa/mlx5/net/mlx5_vnet.c')
-rw-r--r--drivers/vdpa/mlx5/net/mlx5_vnet.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index 71397fdafa6a..a49ebb250253 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -1907,6 +1907,19 @@ static const struct vdpa_config_ops mlx5_vdpa_ops = {
.free = mlx5_vdpa_free,
};
+static int query_mtu(struct mlx5_core_dev *mdev, u16 *mtu)
+{
+ u16 hw_mtu;
+ int err;
+
+ err = mlx5_query_nic_vport_mtu(mdev, &hw_mtu);
+ if (err)
+ return err;
+
+ *mtu = hw_mtu - MLX5V_ETH_HARD_MTU;
+ return 0;
+}
+
static int alloc_resources(struct mlx5_vdpa_net *ndev)
{
struct mlx5_vdpa_net_resources *res = &ndev->res;
@@ -1992,7 +2005,7 @@ static int mlx5v_probe(struct auxiliary_device *adev,
init_mvqs(ndev);
mutex_init(&ndev->reslock);
config = &ndev->config;
- err = mlx5_query_nic_vport_mtu(mdev, &ndev->mtu);
+ err = query_mtu(mdev, &ndev->mtu);
if (err)
goto err_mtu;