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authorEric Dumazet <edumazet@google.com>2024-03-06 19:00:20 +0300
committerJakub Kicinski <kuba@kernel.org>2024-03-08 08:12:42 +0300
commit0139806eebd6bcf6a3df98950cd0691aff216304 (patch)
tree8257508a0ff3838975e1718b31159667d28b7acb
parent61a0be1a5342045059ce53eabfe6500d499d2f89 (diff)
downloadlinux-0139806eebd6bcf6a3df98950cd0691aff216304.tar.xz
net: move tcpv4_offload and tcpv6_offload to net_hotdata
These are used in TCP fast paths. Move them into net_hotdata for better cache locality. v2: tcpv6_offload definition depends on CONFIG_INET 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/20240306160031.874438-8-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--include/net/hotdata.h3
-rw-r--r--net/ipv4/tcp_offload.c17
-rw-r--r--net/ipv6/tcpv6_offload.c16
3 files changed, 19 insertions, 17 deletions
diff --git a/include/net/hotdata.h b/include/net/hotdata.h
index d8ce20d3215d..d86d02f156fc 100644
--- a/include/net/hotdata.h
+++ b/include/net/hotdata.h
@@ -4,12 +4,15 @@
#include <linux/types.h>
#include <linux/netdevice.h>
+#include <net/protocol.h>
/* Read mostly data used in network fast paths. */
struct net_hotdata {
#if IS_ENABLED(CONFIG_INET)
struct packet_offload ip_packet_offload;
+ struct net_offload tcpv4_offload;
struct packet_offload ipv6_packet_offload;
+ struct net_offload tcpv6_offload;
#endif
struct list_head offload_base;
struct list_head ptype_all;
diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c
index b955ab3b236d..ebe4722bb020 100644
--- a/net/ipv4/tcp_offload.c
+++ b/net/ipv4/tcp_offload.c
@@ -345,15 +345,14 @@ INDIRECT_CALLABLE_SCOPE int tcp4_gro_complete(struct sk_buff *skb, int thoff)
return 0;
}
-static const struct net_offload tcpv4_offload = {
- .callbacks = {
- .gso_segment = tcp4_gso_segment,
- .gro_receive = tcp4_gro_receive,
- .gro_complete = tcp4_gro_complete,
- },
-};
-
int __init tcpv4_offload_init(void)
{
- return inet_add_offload(&tcpv4_offload, IPPROTO_TCP);
+ net_hotdata.tcpv4_offload = (struct net_offload) {
+ .callbacks = {
+ .gso_segment = tcp4_gso_segment,
+ .gro_receive = tcp4_gro_receive,
+ .gro_complete = tcp4_gro_complete,
+ },
+ };
+ return inet_add_offload(&net_hotdata.tcpv4_offload, IPPROTO_TCP);
}
diff --git a/net/ipv6/tcpv6_offload.c b/net/ipv6/tcpv6_offload.c
index bf0c957e4b5e..4b07d1e6c952 100644
--- a/net/ipv6/tcpv6_offload.c
+++ b/net/ipv6/tcpv6_offload.c
@@ -66,15 +66,15 @@ static struct sk_buff *tcp6_gso_segment(struct sk_buff *skb,
return tcp_gso_segment(skb, features);
}
-static const struct net_offload tcpv6_offload = {
- .callbacks = {
- .gso_segment = tcp6_gso_segment,
- .gro_receive = tcp6_gro_receive,
- .gro_complete = tcp6_gro_complete,
- },
-};
int __init tcpv6_offload_init(void)
{
- return inet6_add_offload(&tcpv6_offload, IPPROTO_TCP);
+ net_hotdata.tcpv6_offload = (struct net_offload) {
+ .callbacks = {
+ .gso_segment = tcp6_gso_segment,
+ .gro_receive = tcp6_gro_receive,
+ .gro_complete = tcp6_gro_complete,
+ },
+ };
+ return inet6_add_offload(&net_hotdata.tcpv6_offload, IPPROTO_TCP);
}