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
..
netfilter	[SK_BUFF]: Introduce skb_copy_to_linear_data{_offset}	2007-04-25 22:28:29 -07:00
addrconf_core.c	[IPV6]: Fix __ipv6_addr_type() export in correct place.	2007-02-26 11:42:57 -08:00
addrconf.c	[IPv6]: Use rtnl registration interface	2007-04-25 22:27:13 -07:00
af_inet6.c	[INET]: Use jhash + random secret for ehash.	2007-04-25 22:28:06 -07:00
ah6.c	[SK_BUFF]: unions of just one member don't get anything done, kill them	2007-04-25 22:26:20 -07:00
anycast.c	[IPV6]: /proc/net/anycast6 unbalanced inet6_dev refcnt	2007-02-28 09:42:10 -08:00
datagram.c	[SK_BUFF]: Convert skb->tail to sk_buff_data_t	2007-04-25 22:26:28 -07:00
esp6.c	[XFRM]: Optimize MTU calculation	2007-04-25 22:28:38 -07:00
exthdrs_core.c	[NET] IPV6: Fix whitespace errors.	2007-02-10 23:19:42 -08:00
exthdrs.c	[SK_BUFF]: Convert skb->tail to sk_buff_data_t	2007-04-25 22:26:28 -07:00
fib6_rules.c	[IPV6] FIB6RULE: Find source address during looking up route.	2007-04-25 22:28:35 -07:00
icmp.c	[SK_BUFF]: Convert skb->tail to sk_buff_data_t	2007-04-25 22:26:28 -07:00
inet6_connection_sock.c	[TCP]: Restore SKB socket owner setting in tcp_transmit_skb().	2007-01-26 01:04:55 -08:00
inet6_hashtables.c	[IPV6] HASHTABLES: Use appropriate seed for caluculating ehash index.	2007-02-12 20:26:39 -08:00
ip6_fib.c	[IPv6]: Use rtnl registration interface	2007-04-25 22:27:13 -07:00
ip6_flowlabel.c	[PATCH] mark struct file_operations const 7	2007-02-12 09:48:46 -08:00
ip6_input.c	[SK_BUFF]: unions of just one member don't get anything done, kill them	2007-04-25 22:26:20 -07:00
ip6_output.c	[SK_BUFF]: Introduce skb_copy_from_linear_data{_offset}	2007-04-25 22:28:23 -07:00
ip6_tunnel.c	[SK_BUFF]: unions of just one member don't get anything done, kill them	2007-04-25 22:26:20 -07:00
ipcomp6.c	[SK_BUFF]: Introduce skb_copy_to_linear_data{_offset}	2007-04-25 22:28:29 -07:00
ipv6_sockglue.c	[SK_BUFF]: Introduce skb_reset_transport_header(skb)	2007-04-25 22:25:15 -07:00
Kconfig	[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support.	2007-04-25 22:23:43 -07:00
Makefile	[IPV6]: Decentralize EXPORT_SYMBOLs.	2007-04-25 22:23:36 -07:00
mcast.c	[SK_BUFF]: Convert skb->tail to sk_buff_data_t	2007-04-25 22:26:28 -07:00
mip6.c	[SK_BUFF]: Convert skb->tail to sk_buff_data_t	2007-04-25 22:26:28 -07:00
ndisc.c	[SK_BUFF]: Convert skb->tail to sk_buff_data_t	2007-04-25 22:26:28 -07:00
netfilter.c	[SK_BUFF]: Introduce ipv6_hdr(), remove skb->nh.ipv6h	2007-04-25 22:25:14 -07:00
proc.c	[PATCH] remove many unneeded #includes of sched.h	2007-02-14 08:09:54 -08:00
protocol.c	[IPV6]: Decentralize EXPORT_SYMBOLs.	2007-04-25 22:23:36 -07:00
raw.c	[SK_BUFF]: Convert skb->tail to sk_buff_data_t	2007-04-25 22:26:28 -07:00
reassembly.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	[IPv6]: Use rtnl registration interface	2007-04-25 22:27:13 -07:00
sit.c	[SK_BUFF]: unions of just one member don't get anything done, kill them	2007-04-25 22:26:20 -07:00
sysctl_net_ipv6.c	[PATCH] sysctl: remove insert_at_head from register_sysctl	2007-02-14 08:09:59 -08:00
tcp_ipv6.c	[NET]: Use csum_start offset instead of skb_transport_header	2007-04-25 22:28:40 -07:00
tunnel6.c	[IPSEC]: changing API of xfrm6_tunnel_register	2007-02-13 12:55:55 -08:00
udp_impl.h	[NET] IPV6: Fix whitespace errors.	2007-02-10 23:19:42 -08:00
udp.c	[SK_BUFF]: Introduce udp_hdr(), remove skb->h.uh	2007-04-25 22:25:22 -07:00
udplite.c	[UDP]: Clean up UDP-Lite receive checksum	2007-04-25 22:23:51 -07:00
xfrm6_input.c	[SK_BUFF]: Introduce ipv6_hdr(), remove skb->nh.ipv6h	2007-04-25 22:25:14 -07:00
xfrm6_mode_beet.c	[SK_BUFF]: unions of just one member don't get anything done, kill them	2007-04-25 22:26:20 -07:00
xfrm6_mode_ro.c	[SK_BUFF]: Some more layer header conversions	2007-04-25 22:26:03 -07:00
xfrm6_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
xfrm6_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
xfrm6_output.c	[SK_BUFF]: Introduce skb_reset_network_header(skb)	2007-04-25 22:24:46 -07:00
xfrm6_policy.c	[SK_BUFF]: Introduce skb_network_header_len	2007-04-25 22:26:19 -07:00
xfrm6_state.c	[NET] IPV6: Fix whitespace errors.	2007-02-10 23:19:42 -08:00
xfrm6_tunnel.c	[SK_BUFF]: Introduce ipv6_hdr(), remove skb->nh.ipv6h	2007-04-25 22:25:14 -07:00