From 5af674bb90a030317a02419e04b66ec0dc892dcd Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 6 Mar 2024 16:00:28 +0000 Subject: ipv6: move inet6_ehash_secret and udp6_ehash_secret into net_hotdata "struct inet6_protocol" has a 32bit hole in 32bit arches. Use it to store the 32bit secret used by UDP and TCP, to increase cache locality in rx path. Signed-off-by: Eric Dumazet Acked-by: Soheil Hassas Yeganeh Reviewed-by: David Ahern Link: https://lore.kernel.org/r/20240306160031.874438-16-edumazet@google.com Signed-off-by: Jakub Kicinski --- include/net/hotdata.h | 2 ++ include/net/protocol.h | 1 + 2 files changed, 3 insertions(+) (limited to 'include/net') diff --git a/include/net/hotdata.h b/include/net/hotdata.h index 7a210ea6899c..6d5cd967183a 100644 --- a/include/net/hotdata.h +++ b/include/net/hotdata.h @@ -38,6 +38,8 @@ struct net_hotdata { #define inet_ehash_secret net_hotdata.tcp_protocol.secret #define udp_ehash_secret net_hotdata.udp_protocol.secret +#define inet6_ehash_secret net_hotdata.tcpv6_protocol.secret +#define udp6_ehash_secret net_hotdata.udpv6_protocol.secret extern struct net_hotdata net_hotdata; diff --git a/include/net/protocol.h b/include/net/protocol.h index 3ff26e66735c..213649d2ab09 100644 --- a/include/net/protocol.h +++ b/include/net/protocol.h @@ -60,6 +60,7 @@ struct inet6_protocol { __be32 info); unsigned int flags; /* INET6_PROTO_xxx */ + u32 secret; }; #define INET6_PROTO_NOPOLICY 0x1 -- cgit