linux-kernel - [PATCH RFC v1 3/3] vdpa/mlx5: Disable VLAN support to support live migration

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Date:   Mon, 20 Jun 2022 16:06:14 +0300
From:   Eli Cohen <elic@...dia.com>
To:     <eperezma@...hat.com>, <jasowang@...hat.com>, <mst@...hat.com>,
        <virtualization@...ts.linux-foundation.org>
CC:     <linux-kernel@...r.kernel.org>, <si-wei.liu@...cle.com>,
        <parav@...dia.com>, Eli Cohen <elic@...dia.com>
Subject: [PATCH RFC v1 3/3] vdpa/mlx5: Disable VLAN support to support live migration

Current qemu code does not support live migration for devices supporting
VLAN. Disable it.

Note: this patch is provided just to enable testing with current qemu.

Signed-off-by: Eli Cohen <elic@...dia.com>
---
 drivers/vdpa/mlx5/net/mlx5_vnet.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index cb637dee2ea8..a468e02fd869 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -2172,7 +2172,6 @@ static u64 get_supported_features(struct mlx5_core_dev *mdev)
 	mlx_vdpa_features |= BIT_ULL(VIRTIO_NET_F_MQ);
 	mlx_vdpa_features |= BIT_ULL(VIRTIO_NET_F_STATUS);
 	mlx_vdpa_features |= BIT_ULL(VIRTIO_NET_F_MTU);
-	mlx_vdpa_features |= BIT_ULL(VIRTIO_NET_F_CTRL_VLAN);
 
 	return mlx_vdpa_features;
 }
-- 
2.35.1