netdev - Re: [PATCH v4 4/6] uapi/linux/virtio

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Date:   Fri, 2 Dec 2022 05:03:23 -0500
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     Andrew Melnychenko <andrew@...nix.com>
Cc:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, jasowang@...hat.com, yoshfuji@...ux-ipv6.org,
        dsahern@...nel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, devel@...nix.com
Subject: Re: [PATCH v4 4/6] uapi/linux/virtio_net.h: Added USO types.

On Fri, Dec 02, 2022 at 12:33:30AM +0200, Andrew Melnychenko wrote:
> Added new GSO type for USO: VIRTIO_NET_HDR_GSO_UDP_L4.
> Feature VIRTIO_NET_F_HOST_USO allows to enable NETIF_F_GSO_UDP_L4.
> Separated VIRTIO_NET_F_GUEST_USO4 & VIRTIO_NET_F_GUEST_USO6 features
> required for Windows guests.
> 
> Signed-off-by: Andrew Melnychenko <andrew@...nix.com>

Acked-by: Michael S. Tsirkin <mst@...hat.com>

> ---
>  include/uapi/linux/virtio_net.h | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h
> index 6cb842ea8979..cbc631247489 100644
> --- a/include/uapi/linux/virtio_net.h
> +++ b/include/uapi/linux/virtio_net.h
> @@ -57,6 +57,10 @@
>  					 * Steering */
>  #define VIRTIO_NET_F_CTRL_MAC_ADDR 23	/* Set MAC address */
>  #define VIRTIO_NET_F_NOTF_COAL	53	/* Device supports notifications coalescing */
> +#define VIRTIO_NET_F_GUEST_USO4	54	/* Guest can handle USOv4 in. */
> +#define VIRTIO_NET_F_GUEST_USO6	55	/* Guest can handle USOv6 in. */
> +#define VIRTIO_NET_F_HOST_USO	56	/* Host can handle USO in. */
> +

for consistency pls don't add an empty line here.

>  #define VIRTIO_NET_F_HASH_REPORT  57	/* Supports hash report */
>  #define VIRTIO_NET_F_RSS	  60	/* Supports RSS RX steering */
>  #define VIRTIO_NET_F_RSC_EXT	  61	/* extended coalescing info */
> @@ -130,6 +134,7 @@ struct virtio_net_hdr_v1 {
>  #define VIRTIO_NET_HDR_GSO_TCPV4	1	/* GSO frame, IPv4 TCP (TSO) */
>  #define VIRTIO_NET_HDR_GSO_UDP		3	/* GSO frame, IPv4 UDP (UFO) */
>  #define VIRTIO_NET_HDR_GSO_TCPV6	4	/* GSO frame, IPv6 TCP */
> +#define VIRTIO_NET_HDR_GSO_UDP_L4	5	/* GSO frame, IPv4& IPv6 UDP (USO) */
>  #define VIRTIO_NET_HDR_GSO_ECN		0x80	/* TCP has ECN set */
>  	__u8 gso_type;
>  	__virtio16 hdr_len;	/* Ethernet + IP + tcp/udp hdrs */
> -- 
> 2.38.1