mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-27 13:46:26 +02:00
8fb4b275c2
decreases CPU load with the default firewall for routing 95 mbit/s from 78% to 55% git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27878 3c298f89-4303-0410-b956-a3cf2f4a3e73
118 lines
2.4 KiB
Diff
118 lines
2.4 KiB
Diff
--- a/arch/mips/include/asm/checksum.h
|
|
+++ b/arch/mips/include/asm/checksum.h
|
|
@@ -12,6 +12,7 @@
|
|
#define _ASM_CHECKSUM_H
|
|
|
|
#include <linux/in6.h>
|
|
+#include <linux/unaligned/packed_struct.h>
|
|
|
|
#include <asm/uaccess.h>
|
|
|
|
@@ -104,26 +105,30 @@ static inline __sum16 ip_fast_csum(const
|
|
const unsigned int *stop = word + ihl;
|
|
unsigned int csum;
|
|
int carry;
|
|
+ unsigned int w;
|
|
|
|
- csum = word[0];
|
|
- csum += word[1];
|
|
- carry = (csum < word[1]);
|
|
+ csum = __get_unaligned_cpu32(word++);
|
|
+
|
|
+ w = __get_unaligned_cpu32(word++);
|
|
+ csum += w;
|
|
+ carry = (csum < w);
|
|
csum += carry;
|
|
|
|
- csum += word[2];
|
|
- carry = (csum < word[2]);
|
|
+ w = __get_unaligned_cpu32(word++);
|
|
+ csum += w;
|
|
+ carry = (csum < w);
|
|
csum += carry;
|
|
|
|
- csum += word[3];
|
|
- carry = (csum < word[3]);
|
|
+ w = __get_unaligned_cpu32(word++);
|
|
+ csum += w;
|
|
+ carry = (csum < w);
|
|
csum += carry;
|
|
|
|
- word += 4;
|
|
do {
|
|
- csum += *word;
|
|
- carry = (csum < *word);
|
|
+ w = __get_unaligned_cpu32(word++);
|
|
+ csum += w;
|
|
+ carry = (csum < w);
|
|
csum += carry;
|
|
- word++;
|
|
} while (word != stop);
|
|
|
|
return csum_fold(csum);
|
|
--- a/include/linux/ip.h
|
|
+++ b/include/linux/ip.h
|
|
@@ -102,7 +102,7 @@ struct iphdr {
|
|
__be32 saddr;
|
|
__be32 daddr;
|
|
/*The options start here. */
|
|
-};
|
|
+} __packed;
|
|
|
|
#ifdef __KERNEL__
|
|
#include <linux/skbuff.h>
|
|
--- a/include/linux/ipv6.h
|
|
+++ b/include/linux/ipv6.h
|
|
@@ -126,7 +126,7 @@ struct ipv6hdr {
|
|
|
|
struct in6_addr saddr;
|
|
struct in6_addr daddr;
|
|
-};
|
|
+} __packed;
|
|
|
|
#ifdef __KERNEL__
|
|
/*
|
|
--- a/include/linux/tcp.h
|
|
+++ b/include/linux/tcp.h
|
|
@@ -54,7 +54,7 @@ struct tcphdr {
|
|
__be16 window;
|
|
__sum16 check;
|
|
__be16 urg_ptr;
|
|
-};
|
|
+} __packed;
|
|
|
|
/*
|
|
* The union cast uses a gcc extension to avoid aliasing problems
|
|
--- a/include/linux/udp.h
|
|
+++ b/include/linux/udp.h
|
|
@@ -24,7 +24,7 @@ struct udphdr {
|
|
__be16 dest;
|
|
__be16 len;
|
|
__sum16 check;
|
|
-};
|
|
+} __packed;
|
|
|
|
/* UDP socket options */
|
|
#define UDP_CORK 1 /* Never send partially complete segments */
|
|
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
|
|
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
|
|
@@ -14,6 +14,7 @@
|
|
#include <linux/skbuff.h>
|
|
#include <linux/icmp.h>
|
|
#include <linux/sysctl.h>
|
|
+#include <linux/unaligned/packed_struct.h>
|
|
#include <net/route.h>
|
|
#include <net/ip.h>
|
|
|
|
@@ -44,8 +45,8 @@ static bool ipv4_pkt_to_tuple(const stru
|
|
if (ap == NULL)
|
|
return false;
|
|
|
|
- tuple->src.u3.ip = ap[0];
|
|
- tuple->dst.u3.ip = ap[1];
|
|
+ tuple->src.u3.ip = __get_unaligned_cpu32(ap++);
|
|
+ tuple->dst.u3.ip = __get_unaligned_cpu32(ap);
|
|
|
|
return true;
|
|
}
|