diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/vdpa/mlx5/net/mlx5_vnet.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index c6b9ec47e51d..9df69d5efe8c 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c @@ -137,6 +137,7 @@ struct mlx5_vdpa_net { struct mlx5_fc *rx_counter; struct mlx5_flow_handle *rx_rule; bool setup; + u16 mtu; }; static void free_resources(struct mlx5_vdpa_net *ndev); @@ -1506,6 +1507,13 @@ static void teardown_virtqueues(struct mlx5_vdpa_net *ndev) } } +/* TODO: cross-endian support */ +static inline bool mlx5_vdpa_is_little_endian(struct mlx5_vdpa_dev *mvdev) +{ + return virtio_legacy_is_little_endian() || + (mvdev->actual_features & (1ULL << VIRTIO_F_VERSION_1)); +} + static int mlx5_vdpa_set_features(struct vdpa_device *vdev, u64 features) { struct mlx5_vdpa_dev *mvdev = to_mvdev(vdev); @@ -1519,6 +1527,8 @@ static int mlx5_vdpa_set_features(struct vdpa_device *vdev, u64 features) return err; ndev->mvdev.actual_features = features & ndev->mvdev.mlx_features; + ndev->config.mtu = __cpu_to_virtio16(mlx5_vdpa_is_little_endian(mvdev), + ndev->mtu); return err; } @@ -1925,7 +1935,7 @@ void *mlx5_vdpa_add_dev(struct mlx5_core_dev *mdev) init_mvqs(ndev); mutex_init(&ndev->reslock); config = &ndev->config; - err = mlx5_query_nic_vport_mtu(mdev, &config->mtu); + err = mlx5_query_nic_vport_mtu(mdev, &ndev->mtu); if (err) goto err_mtu; |