[RFC PATCH v2 3/7] skbuff: Introduce SKB_EXT_TUN_VNET_HASH
From: Akihiko Odaki <hidden>
Date: 2023-10-15 14:17:48
Also in:
bpf, kvm, linux-doc, linux-kselftest, lkml
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
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 <redacted> --- 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 4174c4b82d13..1f2e5d350810 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h@@ -333,6 +333,13 @@ struct tc_skb_ext { }; #endif +#if IS_ENABLED(CONFIG_TUN) +struct tun_vnet_hash { + 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,
@@ -4631,6 +4638,9 @@ 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 4eaf7ed0d1f4..774c2b26bf25 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c@@ -4793,6 +4793,9 @@ 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), +#endif }; static __always_inline unsigned int skb_ext_total_length(void)
--
2.42.0