Akihiko Odaki wrote:
> This new extension will be used by tun to carry the hash values and
> types to report with virtio-net headers.
>
> Signed-off-by: Akihiko Odaki <akihiko.odaki@xxxxxxxxxx>
> ---
> include/linux/skbuff.h | 10 ++++++++++
> net/core/skbuff.c | 3 +++
> 2 files changed, 13 insertions(+)
>
> diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
> index 29c3ea5b6e93..17cee21c9999 100644
> --- a/include/linux/skbuff.h
> +++ b/include/linux/skbuff.h
> @@ -334,6 +334,13 @@ struct tc_skb_ext {
> };
> #endif
>
> +#if IS_ENABLED(CONFIG_TUN)
> +struct tun_vnet_hash_ext {
> + u32 value;
> + u16 report;
> +};
> +#endif
This is unlikely to belong in skbuff.h
> +
> struct sk_buff_head {
> /* These two members must be first to match sk_buff. */
> struct_group_tagged(sk_buff_list, list,
> @@ -4718,6 +4725,9 @@ enum skb_ext_id {
> #endif
> #if IS_ENABLED(CONFIG_MCTP_FLOWS)
> SKB_EXT_MCTP,
> +#endif
> +#if IS_ENABLED(CONFIG_TUN)
> + SKB_EXT_TUN_VNET_HASH,
> #endif
> SKB_EXT_NUM, /* must be last */
> };
> diff --git a/net/core/skbuff.c b/net/core/skbuff.c
> index 83f8cd8aa2d1..ce34523fd8de 100644
> --- a/net/core/skbuff.c
> +++ b/net/core/skbuff.c
> @@ -4979,6 +4979,9 @@ static const u8 skb_ext_type_len[] = {
> #if IS_ENABLED(CONFIG_MCTP_FLOWS)
> [SKB_EXT_MCTP] = SKB_EXT_CHUNKSIZEOF(struct mctp_flow),
> #endif
> +#if IS_ENABLED(CONFIG_TUN)
> + [SKB_EXT_TUN_VNET_HASH] = SKB_EXT_CHUNKSIZEOF(struct tun_vnet_hash_ext),
> +#endif
> };
>
> static __always_inline unsigned int skb_ext_total_length(void)
>
> --
> 2.46.0
>
