Sasha Levin
2022-Jan-23 00:11 UTC
[PATCH AUTOSEL 5.16 13/19] net/mlx5_vdpa: Offer VIRTIO_NET_F_MTU when setting MTU
From: Eli Cohen <elic at nvidia.com> [ Upstream commit 60af39c1f4cc92cc2785ef745c0c97558134d539 ] Make sure to offer VIRTIO_NET_F_MTU since we configure the MTU based on what was queried from the device. This allows the virtio driver to allocate large enough buffers based on the reported MTU. Signed-off-by: Eli Cohen <elic at nvidia.com> Link: https://lore.kernel.org/r/20211124170949.51725-1-elic at nvidia.com Signed-off-by: Michael S. Tsirkin <mst at redhat.com> Acked-by: Jason Wang <jasowang at redhat.com> Reviewed-by: Si-Wei Liu <si-wei.liu at oracle.com> Signed-off-by: Sasha Levin <sashal at kernel.org> --- drivers/vdpa/mlx5/net/mlx5_vnet.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index 63813fbb5f62a..d8e69340a25ae 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c @@ -1895,6 +1895,7 @@ static u64 mlx5_vdpa_get_features(struct vdpa_device *vdev) ndev->mvdev.mlx_features |= BIT_ULL(VIRTIO_NET_F_CTRL_MAC_ADDR); ndev->mvdev.mlx_features |= BIT_ULL(VIRTIO_NET_F_MQ); ndev->mvdev.mlx_features |= BIT_ULL(VIRTIO_NET_F_STATUS); + ndev->mvdev.mlx_features |= BIT_ULL(VIRTIO_NET_F_MTU); print_features(mvdev, ndev->mvdev.mlx_features, false); return ndev->mvdev.mlx_features; -- 2.34.1