Herbert Xu 663ead3bb8 [NET]: Use csum_start offset instead of skb_transport_header ... The skb transport pointer is currently used to specify the start of the checksum region for transmit checksum offload. Unfortunately, the same pointer is also used during receive side processing. This creates a problem when we want to retransmit a received packet with partial checksums since the skb transport pointer would be overwritten. This patch solves this problem by creating a new 16-bit csum_start offset value to replace the skb transport header for the purpose of checksums. This offset is calculated from skb->head so that it does not have to change when skb->data changes. No extra space is required since csum_offset itself fits within a 16-bit word so we can use the other 16 bits for csum_start. For backwards compatibility, just before we push a packet with partial checksums off into the device driver, we set the skb transport header to what it would have been under the old scheme. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>		2007-04-25 22:28:40 -07:00
..
ipvs	[SK_BUFF]: Introduce skb_copy_to_linear_data{_offset}	2007-04-25 22:28:29 -07:00
netfilter	[SK_BUFF]: Introduce skb_copy_to_linear_data{_offset}	2007-04-25 22:28:29 -07:00
af_inet.c	[NET]: inet_ehash_secret should be __read_mostly and set only once	2007-04-25 22:28:17 -07:00
ah4.c	[SK_BUFF]: unions of just one member don't get anything done, kill them	2007-04-25 22:26:20 -07:00
arp.c	[SK_BUFF]: Introduce arp_hdr(), remove skb->nh.arph	2007-04-25 22:25:12 -07:00
cipso_ipv4.c	[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph	2007-04-25 22:25:10 -07:00
datagram.c	[NET] IPV4: Fix whitespace errors.	2007-02-10 23:19:39 -08:00
devinet.c	[IPv4]: Use rtnl registration interface	2007-04-25 22:27:08 -07:00
esp4.c	[XFRM]: beet: fix worst case header_len calculation	2007-04-25 22:28:39 -07:00
fib_frontend.c	[IPv4]: Use rtnl registration interface	2007-04-25 22:27:08 -07:00
fib_hash.c	[NET]: make seq_operations const	2007-04-25 22:25:03 -07:00
fib_lookup.h	[IPV4]: net/ipv4/fib annotations	2006-09-28 18:02:23 -07:00
fib_rules.c	[NET] fib_rules: delay route cache flush by ip_rt_min_delay	2007-04-25 22:28:24 -07:00
fib_semantics.c	[IPv4] fib: Fix out of bound access of fib_props[]	2007-03-25 18:48:03 -07:00
fib_trie.c	[IPV4]: fib_trie root node settings	2007-04-25 22:26:32 -07:00
icmp.c	[SK_BUFF]: Convert skb->tail to sk_buff_data_t	2007-04-25 22:26:28 -07:00
igmp.c	[SK_BUFF]: Convert skb->tail to sk_buff_data_t	2007-04-25 22:26:28 -07:00
inet_connection_sock.c	[NET] IPV4: Fix whitespace errors.	2007-02-10 23:19:39 -08:00
inet_diag.c	[NETLINK]: Directly return -EINTR from netlink_dump_start()	2007-04-25 22:27:33 -07:00
inet_hashtables.c	[NET] IPV4: Fix whitespace errors.	2007-02-10 23:19:39 -08:00
inet_timewait_sock.c	[NET]: change layout of ehash table	2007-02-08 14:16:46 -08:00
inetpeer.c	[IPV4]: Optimize inet_getpeer()	2007-04-25 22:23:49 -07:00
ip_forward.c	[NET]: Allow forwarding of ip_summed except CHECKSUM_COMPLETE	2007-04-25 22:28:16 -07:00
ip_fragment.c	[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph	2007-04-25 22:25:10 -07:00
ip_gre.c	[SK_BUFF]: unions of just one member don't get anything done, kill them	2007-04-25 22:26:20 -07:00
ip_input.c	[SK_BUFF]: Introduce skb_reset_transport_header(skb)	2007-04-25 22:25:15 -07:00
ip_options.c	[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph	2007-04-25 22:25:10 -07:00
ip_output.c	[SK_BUFF]: Introduce skb_copy_from_linear_data{_offset}	2007-04-25 22:28:23 -07:00
ip_sockglue.c	[SK_BUFF]: Convert skb->tail to sk_buff_data_t	2007-04-25 22:26:28 -07:00
ipcomp.c	[SK_BUFF]: Introduce skb_copy_to_linear_data{_offset}	2007-04-25 22:28:29 -07:00
ipconfig.c	[SK_BUFF]: Introduce skb_transport_header(skb)	2007-04-25 22:25:31 -07:00
ipip.c	[SK_BUFF]: unions of just one member don't get anything done, kill them	2007-04-25 22:26:20 -07:00
ipmr.c	[SK_BUFF]: Introduce skb_copy_to_linear_data{_offset}	2007-04-25 22:28:29 -07:00
Kconfig	[TCP] YeAH-TCP: algorithm implementation	2007-04-25 22:23:18 -07:00
Makefile	[TCP] YeAH-TCP: algorithm implementation	2007-04-25 22:23:18 -07:00
multipath_drr.c	[PATCH] remove many unneeded #includes of sched.h	2007-02-14 08:09:54 -08:00
multipath_random.c	[IPV4]: Use random32() in net/ipv4/multipath	2007-02-26 11:43:00 -08:00
multipath_rr.c	[PATCH] remove many unneeded #includes of sched.h	2007-02-14 08:09:54 -08:00
multipath_wrandom.c	[IPV4]: Use random32() in net/ipv4/multipath	2007-02-26 11:43:00 -08:00
multipath.c
netfilter.c	[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph	2007-04-25 22:25:10 -07:00
proc.c	[PATCH] mark struct file_operations const 7	2007-02-12 09:48:46 -08:00
protocol.c	[IPV4]: align inet_protos[] on SMP	2007-04-25 22:28:20 -07:00
raw.c	[SK_BUFF]: unions of just one member don't get anything done, kill them	2007-04-25 22:26:20 -07:00
route.c	[IPV4] LVS: Allow to send ICMP unreachable responses when real-servers are removed	2007-04-25 22:28:15 -07:00
syncookies.c	[SK_BUFF]: Introduce tcp_hdr(), remove skb->h.th	2007-04-25 22:25:26 -07:00
sysctl_net_ipv4.c	[TCP]: Add two new spurious RTO responses to FRTO	2007-04-25 22:23:23 -07:00
tcp_bic.c	[TCP] tcp_bic: use BUILD_BUG_ON	2006-09-22 15:18:04 -07:00
tcp_cong.c	[TCP]: Add RFC3742 Limited Slow-Start, controlled by variable sysctl_tcp_max_ssthresh.	2007-04-25 22:23:19 -07:00
tcp_cubic.c	[TCP]: cubic update for net-2.6.22	2007-04-25 22:28:09 -07:00
tcp_diag.c	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
tcp_highspeed.c	[NET] IPV4: Fix whitespace errors.	2007-02-10 23:19:39 -08:00
tcp_htcp.c	[TCP]: cleanup of htcp (resend)	2007-02-12 13:34:03 -08:00
tcp_hybla.c	[TCP]: whitespace cleanup	2007-04-25 22:24:13 -07:00
tcp_input.c	[SK_BUFF]: Introduce skb_transport_header(skb)	2007-04-25 22:25:31 -07:00
tcp_ipv4.c	[NET]: Use csum_start offset instead of skb_transport_header	2007-04-25 22:28:40 -07:00
tcp_lp.c	[TCP] tcp-lp: prevent chance for oops	2006-09-28 18:03:07 -07:00
tcp_minisocks.c	[SK_BUFF]: Introduce tcp_hdr(), remove skb->h.th	2007-04-25 22:25:26 -07:00
tcp_output.c	[SK_BUFF]: Some more conversions to skb_copy_from_linear_data	2007-04-25 22:28:30 -07:00
tcp_probe.c	[TCP] tcp_probe: improvements for net-2.6.22	2007-04-25 22:28:10 -07:00
tcp_scalable.c	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
tcp_timer.c	[TCP]: Abstract out all write queue operations.	2007-04-25 22:24:02 -07:00
tcp_vegas.c	[TCP] vegas: Use type safe netlink interface	2007-04-25 22:27:26 -07:00
tcp_veno.c	[TCP] Congestion control (modulo lp, bic): use BUILD_BUG_ON	2006-09-22 15:18:13 -07:00
tcp_westwood.c	[TCP] westwood: Use type safe netlink interface	2007-04-25 22:27:26 -07:00
tcp_yeah.c	[TCP] TCP Yeah: cleanup	2007-04-25 22:23:48 -07:00
tcp_yeah.h	[NET]: div64_64 consolidate (rev3)	2007-04-25 22:23:33 -07:00
tcp.c	[TCP]: tcp_memory_pressure and tcp_socket are__read_mostly candidates	2007-04-25 22:28:19 -07:00
tunnel4.c	[IPSEC]: Changing API of xfrm4_tunnel_register.	2007-02-13 12:54:47 -08:00
udp_impl.h	[NET] IPV4: Fix whitespace errors.	2007-02-10 23:19:39 -08:00
udp.c	[NET]: Use csum_start offset instead of skb_transport_header	2007-04-25 22:28:40 -07:00
udplite.c	[UDP]: Clean up UDP-Lite receive checksum	2007-04-25 22:23:51 -07:00
xfrm4_input.c	[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph	2007-04-25 22:25:10 -07:00
xfrm4_mode_beet.c	[XFRM]: beet: fix worst case header_len calculation	2007-04-25 22:28:39 -07:00
xfrm4_mode_transport.c	[SK_BUFF]: unions of just one member don't get anything done, kill them	2007-04-25 22:26:20 -07:00
xfrm4_mode_tunnel.c	[SK_BUFF]: unions of just one member don't get anything done, kill them	2007-04-25 22:26:20 -07:00
xfrm4_output.c	[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph	2007-04-25 22:25:10 -07:00
xfrm4_policy.c	[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph	2007-04-25 22:25:10 -07:00
xfrm4_state.c	[IPSEC]: exporting xfrm_state_afinfo	2007-02-08 12:39:00 -08:00
xfrm4_tunnel.c	[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph	2007-04-25 22:25:10 -07:00