diff options
| author | Eric Dumazet <edumazet@google.com> | 2024-03-06 16:00:27 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-03-07 21:12:43 -0800 |
| commit | 6e0735723ab437793cfab02d50b3ae3539aeb520 (patch) | |
| tree | 4cd1f0fc1b3a701d34aa23e9b20299f3b9bfabb3 /include/net | |
| parent | 571bf020be9c3b135e8b6dd87421919953268c1f (diff) | |
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 <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-15-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/hotdata.h | 3 | ||||
| -rw-r--r-- | include/net/protocol.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/include/net/hotdata.h b/include/net/hotdata.h index 87215f7ac200..7a210ea6899c 100644 --- a/include/net/hotdata.h +++ b/include/net/hotdata.h @@ -36,6 +36,9 @@ struct net_hotdata { int dev_rx_weight; }; +#define inet_ehash_secret net_hotdata.tcp_protocol.secret +#define udp_ehash_secret net_hotdata.udp_protocol.secret + extern struct net_hotdata net_hotdata; #endif /* _NET_HOTDATA_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) |