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ipv6: Move exthdr offload support into separate file 

Move the exthdr offload functionality into a separeate
file in preparate for moving it out of the module

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vlad Yasevich 2012-11-15 08:49:19 +00:00 committed by David S. Miller
parent 5edbb07dc9
commit 2207afc8bf
4 changed files with 55 additions and 37 deletions
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2
net/ipv6/Makefile
View File

@ -10,7 +10,7 @@ ipv6-objs := af_inet6.o anycast.o ip6_output.o ip6_input.o addrconf.o \
raw.o protocol.o icmp.o mcast.o reassembly.o tcp_ipv6.o \
exthdrs.o datagram.o ip6_flowlabel.o inet6_connection_sock.o
ipv6-offload := ip6_offload.o tcpv6_offload.o udp_offload.o
ipv6-offload := ip6_offload.o tcpv6_offload.o udp_offload.o exthdrs_offload.o
ipv6-$(CONFIG_SYSCTL) = sysctl_net_ipv6.o
ipv6-$(CONFIG_IPV6_MROUTE) += ip6mr.o

40
net/ipv6/exthdrs.c
View File

@ -48,6 +48,7 @@
#endif
#include <asm/uaccess.h>
#include "ip6_offload.h"
int ipv6_find_tlv(struct sk_buff *skb, int offset, int type)
{
@ -528,20 +529,12 @@ static int ipv6_rthdr_rcv(struct sk_buff *skb)
static const struct inet6_protocol rthdr_protocol = {
.handler = ipv6_rthdr_rcv,
.flags = INET6_PROTO_NOPOLICY | INET6_PROTO_GSO_EXTHDR,
};
static const struct net_offload rthdr_offload = {
.flags = INET6_PROTO_GSO_EXTHDR,
.flags = INET6_PROTO_NOPOLICY,
};
static const struct inet6_protocol destopt_protocol = {
.handler = ipv6_destopt_rcv,
.flags = INET6_PROTO_NOPOLICY | INET6_PROTO_GSO_EXTHDR,
};
static const struct net_offload dstopt_offload = {
.flags = INET6_PROTO_GSO_EXTHDR,
.flags = INET6_PROTO_NOPOLICY,
};
static const struct inet6_protocol nodata_protocol = {
@ -549,32 +542,6 @@ static const struct inet6_protocol nodata_protocol = {
.flags = INET6_PROTO_NOPOLICY,
};
static int ipv6_exthdrs_offload_init(void)
{
int ret;
ret = inet6_add_offload(&rthdr_offload, IPPROTO_ROUTING);
if (!ret)
goto out;
ret = inet6_add_offload(&dstopt_offload, IPPROTO_DSTOPTS);
if (!ret)
goto out_rt;
out:
return ret;
out_rt:
inet_del_offload(&rthdr_offload, IPPROTO_ROUTING);
goto out;
}
static void ipv6_exthdrs_offload_exit(void)
{
inet_del_offload(&rthdr_offload, IPPROTO_ROUTING);
inet_del_offload(&rthdr_offload, IPPROTO_DSTOPTS);
}
int __init ipv6_exthdrs_init(void)
{
int ret;
@ -608,6 +575,7 @@ int __init ipv6_exthdrs_init(void)
void ipv6_exthdrs_exit(void)
{
ipv6_exthdrs_offload_exit();
inet6_del_protocol(&nodata_protocol, IPPROTO_NONE);
inet6_del_protocol(&destopt_protocol, IPPROTO_DSTOPTS);
inet6_del_protocol(&rthdr_protocol, IPPROTO_ROUTING);

47
net/ipv6/exthdrs_offload.c Normal file
View File

@ -0,0 +1,47 @@
/*
* IPV6 GSO/GRO offload support
* Linux INET6 implementation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* IPV6 Extension Header GSO/GRO support
*/
#include <net/protocol.h>
#include "ip6_offload.h"
static const struct net_offload rthdr_offload = {
.flags = INET6_PROTO_GSO_EXTHDR,
};
static const struct net_offload dstopt_offload = {
.flags = INET6_PROTO_GSO_EXTHDR,
};
int __init ipv6_exthdrs_offload_init(void)
{
int ret;
ret = inet6_add_offload(&rthdr_offload, IPPROTO_ROUTING);
if (!ret)
goto out;
ret = inet6_add_offload(&dstopt_offload, IPPROTO_DSTOPTS);
if (!ret)
goto out_rt;
out:
return ret;
out_rt:
inet_del_offload(&rthdr_offload, IPPROTO_ROUTING);
goto out;
}
void ipv6_exthdrs_offload_exit(void)
{
inet_del_offload(&rthdr_offload, IPPROTO_ROUTING);
inet_del_offload(&rthdr_offload, IPPROTO_DSTOPTS);
}

3
net/ipv6/ip6_offload.h
View File

@ -11,6 +11,9 @@
#ifndef __ip6_offload_h
#define __ip6_offload_h
int ipv6_exthdrs_offload_init(void);
void ipv6_exthdrs_offload_exit(void);
int udp_offload_init(void);
void udp_offload_cleanup(void);