| Message ID | 20240915-rss-v3-1-c630015db082@daynix.com (mailing list archive) |
|---|---|
| State | RFC |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | tun: Introduce virtio-net hashing feature | expand |
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@daynix.com> > --- > 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 >
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 + 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)
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@daynix.com> --- include/linux/skbuff.h | 10 ++++++++++ net/core/skbuff.c | 3 +++ 2 files changed, 13 insertions(+)