netdev - Re: [PATCH v5 0/6] TUN/VirtioNet USO features support.

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Date:   Mon, 12 Dec 2022 09:40:16 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Andrew Melnychenko <andrew@...nix.com>
Cc:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, mst@...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, yan@...nix.com,
        yuri.benditovich@...nix.com
Subject: Re: [PATCH v5 0/6] TUN/VirtioNet USO features support.

Hello:

This series was applied to netdev/net-next.git (master)
by David S. Miller <davem@...emloft.net>:

On Wed,  7 Dec 2022 13:35:52 +0200 you wrote:
> Added new offloads for TUN devices TUN_F_USO4 and TUN_F_USO6.
> Technically they enable NETIF_F_GSO_UDP_L4
> (and only if USO4 & USO6 are set simultaneously).
> It allows the transmission of large UDP packets.
> 
> UDP Segmentation Offload (USO/GSO_UDP_L4) - ability to split UDP packets
> into several segments. It's similar to UFO, except it doesn't use IP
> fragmentation. The drivers may push big packets and the NIC will split
> them(or assemble them in case of receive), but in the case of VirtioNet
> we just pass big UDP to the host. So we are freeing the driver from doing
> the unnecessary job of splitting. The same thing for several guests
> on one host, we can pass big packets between guests.
> 
> [...]

Here is the summary with links:
  - [v5,1/6] udp: allow header check for dodgy GSO_UDP_L4 packets.
    https://git.kernel.org/netdev/net-next/c/1fd54773c267
  - [v5,2/6] uapi/linux/if_tun.h: Added new offload types for USO4/6.
    https://git.kernel.org/netdev/net-next/c/b22bbdd17a5a
  - [v5,3/6] driver/net/tun: Added features for USO.
    https://git.kernel.org/netdev/net-next/c/399e0827642f
  - [v5,4/6] uapi/linux/virtio_net.h: Added USO types.
    https://git.kernel.org/netdev/net-next/c/34061b348ae9
  - [v5,5/6] linux/virtio_net.h: Support USO offload in vnet header.
    https://git.kernel.org/netdev/net-next/c/860b7f27b8f7
  - [v5,6/6] drivers/net/virtio_net.c: Added USO support.
    https://git.kernel.org/netdev/net-next/c/418044e1de30

You are awesome, thank you!
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