From 6e0735723ab437793cfab02d50b3ae3539aeb520 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 6 Mar 2024 16:00:27 +0000 Subject: inet: move inet_ehash_secret and udp_ehash_secret into net_hotdata "struct net_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/20240306160031.874438-15-edumazet@google.com Signed-off-by: Jakub Kicinski --- include/net/protocol.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/net/protocol.h') diff --git a/include/net/protocol.h b/include/net/protocol.h index 6aef8cb11cc8..3ff26e66735c 100644 --- a/include/net/protocol.h +++ b/include/net/protocol.h @@ -46,6 +46,7 @@ struct net_protocol { * socket lookup? */ icmp_strict_tag_validation:1; + u32 secret; }; #if IS_ENABLED(CONFIG_IPV6) -- cgit v1.2.3 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/protocol.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/net/protocol.h') 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 v1.2.3 From df51b84564159cdd91a67ee0f9e30b42b3a73cef Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 6 Mar 2024 16:00:29 +0000 Subject: ipv6: move tcp_ipv6_hash_secret and udp_ipv6_hash_secret to net_hotdata Use a 32bit hole in "struct net_offload" to store the remaining 32bit secrets used by TCPv6 and UDPv6. Signed-off-by: Eric Dumazet Acked-by: Soheil Hassas Yeganeh Reviewed-by: David Ahern Link: https://lore.kernel.org/r/20240306160031.874438-17-edumazet@google.com Signed-off-by: Jakub Kicinski --- include/net/protocol.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/net/protocol.h') diff --git a/include/net/protocol.h b/include/net/protocol.h index 213649d2ab09..b2499f88f8f8 100644 --- a/include/net/protocol.h +++ b/include/net/protocol.h @@ -70,6 +70,7 @@ struct inet6_protocol { struct net_offload { struct offload_callbacks callbacks; unsigned int flags; /* Flags used by IPv6 for now */ + u32 secret; }; /* This should be set for any extension header which is compatible with GSO. */ #define INET6_PROTO_GSO_EXTHDR 0x1 -- cgit v1.2.3