netdev - [PATCH v2 net-next 11/18] udp: move udpv4_offload and udpv6_offload to net

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Message-ID: <20240306160031.874438-12-edumazet@google.com>
Date: Wed,  6 Mar 2024 16:00:24 +0000
From: Eric Dumazet <edumazet@...gle.com>
To: "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, 
	Paolo Abeni <pabeni@...hat.com>
Cc: David Ahern <dsahern@...nel.org>, Willem de Bruijn <willemb@...gle.com>, 
	Soheil Hassas Yeganeh <soheil@...gle.com>, Neal Cardwell <ncardwell@...gle.com>, netdev@...r.kernel.org, 
	eric.dumazet@...il.com, Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH v2 net-next 11/18] udp: move udpv4_offload and udpv6_offload
 to net_hotdata

These structures are used in GRO and GSO paths.
Move them to net_hodata for better cache locality.

v2: udpv6_offload definition depends on CONFIG_INET=y

Signed-off-by: Eric Dumazet <edumazet@...gle.com>
Acked-by: Soheil Hassas Yeganeh <soheil@...gle.com>
Reviewed-by: David Ahern <dsahern@...nel.org>
---
 include/net/hotdata.h  |  2 ++
 net/ipv4/udp_offload.c | 17 ++++++++---------
 net/ipv6/udp_offload.c | 21 ++++++++++-----------
 3 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/include/net/hotdata.h b/include/net/hotdata.h
index a8f7e5e826fb749965573a5bcf13825a973c16ae..daeee8ce8084e885984716113779750ca7b72147 100644
--- a/include/net/hotdata.h
+++ b/include/net/hotdata.h
@@ -11,8 +11,10 @@ struct net_hotdata {
 #if IS_ENABLED(CONFIG_INET)
 	struct packet_offload	ip_packet_offload;
 	struct net_offload	tcpv4_offload;
+	struct net_offload 	udpv4_offload;
 	struct packet_offload	ipv6_packet_offload;
 	struct net_offload	tcpv6_offload;
+	struct net_offload	udpv6_offload;
 #endif
 	struct list_head	offload_base;
 	struct list_head	ptype_all;
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index 6c95d28d0c4a7e56d587a986113b3711f8de964c..b9880743765c6c24c28bea095f16f0cf091664ce 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -737,15 +737,14 @@ INDIRECT_CALLABLE_SCOPE int udp4_gro_complete(struct sk_buff *skb, int nhoff)
 	return udp_gro_complete(skb, nhoff, udp4_lib_lookup_skb);
 }
 
-static const struct net_offload udpv4_offload = {
-	.callbacks = {
-		.gso_segment = udp4_ufo_fragment,
-		.gro_receive  =	udp4_gro_receive,
-		.gro_complete =	udp4_gro_complete,
-	},
-};
-
 int __init udpv4_offload_init(void)
 {
-	return inet_add_offload(&udpv4_offload, IPPROTO_UDP);
+	net_hotdata.udpv4_offload = (struct net_offload) {
+		.callbacks = {
+			.gso_segment = udp4_ufo_fragment,
+			.gro_receive  =	udp4_gro_receive,
+			.gro_complete =	udp4_gro_complete,
+		},
+	};
+	return inet_add_offload(&net_hotdata.udpv4_offload, IPPROTO_UDP);
 }
diff --git a/net/ipv6/udp_offload.c b/net/ipv6/udp_offload.c
index 6b95ba241ebe2af7e5f2760d8a9c1d78f08579c5..312bcaeea96fb78ac488124cf7795aa834392c64 100644
--- a/net/ipv6/udp_offload.c
+++ b/net/ipv6/udp_offload.c
@@ -192,20 +192,19 @@ INDIRECT_CALLABLE_SCOPE int udp6_gro_complete(struct sk_buff *skb, int nhoff)
 	return udp_gro_complete(skb, nhoff, udp6_lib_lookup_skb);
 }
 
-static const struct net_offload udpv6_offload = {
-	.callbacks = {
-		.gso_segment	=	udp6_ufo_fragment,
-		.gro_receive	=	udp6_gro_receive,
-		.gro_complete	=	udp6_gro_complete,
-	},
-};
-
-int udpv6_offload_init(void)
+int __init udpv6_offload_init(void)
 {
-	return inet6_add_offload(&udpv6_offload, IPPROTO_UDP);
+	net_hotdata.udpv6_offload = (struct net_offload) {
+		.callbacks = {
+			.gso_segment	=	udp6_ufo_fragment,
+			.gro_receive	=	udp6_gro_receive,
+			.gro_complete	=	udp6_gro_complete,
+		},
+	};
+	return inet6_add_offload(&net_hotdata.udpv6_offload, IPPROTO_UDP);
 }
 
 int udpv6_offload_exit(void)
 {
-	return inet6_del_offload(&udpv6_offload, IPPROTO_UDP);
+	return inet6_del_offload(&net_hotdata.udpv6_offload, IPPROTO_UDP);
 }
-- 
2.44.0.278.ge034bb2e1d-goog