Re: [dpdk-dev] [PATCH] net/virtio: report maximum MTU in device info

[Maxime Coquelin <maxime.coquelin@redhat.com>]

On 7/21/21 11:22 AM, Andrew Rybchenko wrote:
> From: Ivan Ilchenko <ivan.ilchenko@oktetlabs.ru>
> 
> Fix the driver to report maximum MTU obtained from config if
> VIRTIO_NET_F_MTU is supported or calculated based on maximum
> Rx packet length.
> 
> Fixes: ad97ceece12c ("ethdev: add min/max MTU to device info")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Ivan Ilchenko <ivan.ilchenko@oktetlabs.ru>
> Signed-off-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
> ---
>  drivers/net/virtio/virtio_ethdev.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
> index 6d6e105960..af6305e9d8 100644
> --- a/drivers/net/virtio/virtio_ethdev.c
> +++ b/drivers/net/virtio/virtio_ethdev.c
> @@ -2502,6 +2502,7 @@ virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
>  	dev_info->min_rx_bufsize = VIRTIO_MIN_RX_BUFSIZE;
>  	dev_info->max_rx_pktlen = VIRTIO_MAX_RX_PKTLEN;
>  	dev_info->max_mac_addrs = VIRTIO_MAX_MAC_ADDRS;
> +	dev_info->max_mtu = hw->max_mtu;
>  
>  	host_features = VIRTIO_OPS(hw)->get_features(hw);
>  	dev_info->rx_offload_capa = DEV_RX_OFFLOAD_VLAN_STRIP;
> 

Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

Thanks,
Maxime