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vdpa/mlx5: fix TSO offload without checksum

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Packet was corrupted when TSO requested without CSUM update.

Enables CSUM automatically if only TSO requested.

Fixes: 2aa8444b0084 ("vdpa/mlx5: support stateless offloads")
Cc: stable@dpdk.org

Signed-off-by: Xueming Li <xuemingl@nvidia.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
This commit is contained in:
Xueming Li 2021-06-13 20:51:39 +08:00 committed by Chenbo Xia
parent b3d4a18b9c
commit ff09f80697
1 changed files with 7 additions and 0 deletions
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7
drivers/vdpa/mlx5/mlx5_vdpa_virtq.c
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@ -442,6 +442,13 @@ mlx5_vdpa_virtqs_prepare(struct mlx5_vdpa_priv *priv)
DRV_LOG(ERR, "Failed to configure negotiated features.");
return -1;
}
if ((priv->features & (1ULL << VIRTIO_NET_F_CSUM)) == 0 &&
((priv->features & (1ULL << VIRTIO_NET_F_HOST_TSO4)) > 0 ||
(priv->features & (1ULL << VIRTIO_NET_F_HOST_TSO6)) > 0)) {
/* Packet may be corrupted if TSO is enabled without CSUM. */
DRV_LOG(INFO, "TSO is enabled without CSUM, force CSUM.");
priv->features |= (1ULL << VIRTIO_NET_F_CSUM);
}
if (nr_vring > priv->caps.max_num_virtio_queues * 2) {
DRV_LOG(ERR, "Do not support more than %d virtqs(%d).",
(int)priv->caps.max_num_virtio_queues * 2,