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6ff50cd555
linux/net/ipv4
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Eric Dumazet 6ff50cd555 tcp: gso: do not generate out of order packets 
GSO TCP handler has following issues :

1) ooo_okay from original GSO packet is duplicated to all segments
2) segments (but the last one) are orphaned, so transmit path can not
get transmit queue number from the socket. This happens if GSO
segmentation is done before stacked device for example.

Result is we can send packets from a given TCP flow to different TX
queues (if using multiqueue NICS). This generates OOO problems and
spurious SACK & retransmits.

Fix this by keeping socket pointer set for all segments.

This means that every segment must also have a destructor, and the
original gso skb truesize must be split on all segments, to keep
precise sk->sk_wmem_alloc accounting.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Maciej Żenczykowski <maze@google.com>
Cc: Tom Herbert <therbert@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 14:43:40 -07:00
..
netfilter netfilter: log: netns NULL ptr bug when calling from conntrack 2013-05-15 14:11:07 +02:00
af_inet.c gre: Fix GREv4 TCPv6 segmentation. 2013-05-03 16:08:58 -04:00
ah4.c net: Add skb_unclone() helper function. 2013-02-15 15:10:37 -05:00
arp.c firewire net, ipv4 arp: Extend hardware address and remove driver-level packet inspection. 2013-03-26 12:32:13 -04:00
cipso_ipv4.c cipso: don't follow a NULL pointer when setsockopt() is called 2012-07-18 09:01:12 -07:00
datagram.c ipv4: Add a socket release callback for datagram sockets 2013-01-21 14:17:05 -05:00
devinet.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-22 20:32:51 -04:00
esp4.c esp4: fix error return code in esp_output() 2013-04-15 14:05:34 -04:00
fib_frontend.c net-next: replace obsolete NLMSG_* with type safe nlmsg_* 2013-03-28 14:25:25 -04:00
fib_lookup.h ipv4: Fix nexthop caching wrt. scoping. 2011-03-24 18:06:47 -07:00
fib_rules.c sections: fix section conflicts in net 2012-10-06 03:04:45 +09:00
fib_semantics.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
fib_trie.c fib_trie: no need to delay vfree() 2013-05-06 11:06:51 -04:00
gre.c gso: Handle Trans-Ether-Bridging protocol in skb_network_protocol() 2013-05-08 13:13:30 -07:00
icmp.c net: Add MIB counters for checksum errors 2013-04-29 15:14:03 -04:00
igmp.c net: proc: change proc_net_remove to remove_proc_entry 2013-02-18 14:53:08 -05:00
inet_connection_sock.c tcp: Remove TCPCT 2013-03-17 14:35:13 -04:00
inet_diag.c netlink: rename ssk to sk in struct netlink_skb_params 2013-04-19 14:57:56 -04:00
inet_fragment.c net: frag, fix race conditions in LRU list maintenance 2013-05-06 11:06:51 -04:00
inet_hashtables.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
inet_lro.c ipv4: replace ip_fast_csum with csum_replace2 2013-03-15 09:12:25 -04:00
inet_timewait_sock.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
inetpeer.c Merge branch 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq 2012-10-02 09:54:49 -07:00
ip_forward.c ipv4: introduce rt_uses_gateway 2012-10-08 17:42:36 -04:00
ip_fragment.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-22 20:32:51 -04:00
ip_gre.c net: ipv4: typo issue, remove erroneous semicolon 2013-04-25 04:07:45 -04:00
ip_input.c net: Add MIB counters for checksum errors 2013-04-29 15:14:03 -04:00
ip_options.c net/ipv4: Ensure that location of timestamp option is stored 2013-03-12 05:35:39 -04:00
ip_output.c ipv4: ip_output: remove inline marking of EXPORT_SYMBOL functions 2013-05-11 16:12:44 -07:00
ip_sockglue.c net: prevent setting ttl=0 via IP_TTL 2013-01-08 17:57:10 -08:00
ip_tunnel.c ip_tunnel: Fix off-by-one error in forming dev name. 2013-03-29 15:24:28 -04:00
ip_vti.c Tunneling: use IP Tunnel stats APIs. 2013-03-26 12:27:19 -04:00
ipcomp.c xfrm: allow to avoid copying DSCP during encapsulation 2013-03-06 07:02:45 +01:00
ipconfig.c ipconfig: add informative timeout messages while waiting for carrier 2013-04-02 14:35:33 -04:00
ipip.c IPIP: Use ip-tunneling code. 2013-03-26 12:27:18 -04:00
ipmr.c net-next: replace obsolete NLMSG_* with type safe nlmsg_* 2013-03-28 14:25:25 -04:00
Kconfig Tunneling: use IP Tunnel stats APIs. 2013-03-26 12:27:19 -04:00
Makefile GRE: Refactor GRE tunneling code. 2013-03-26 12:27:18 -04:00
netfilter.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
ping.c net: sock: make sock_tx_timestamp void 2013-04-14 15:41:49 -04:00
proc.c net: Add MIB counters for checksum errors 2013-04-29 15:14:03 -04:00
protocol.c ipv4: Disallow non-namespace aware protocols to register. 2013-02-05 14:42:23 -05:00
raw.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
route.c rtnetlink: Remove passing of attributes into rtnl_doit functions 2013-03-22 10:31:16 -04:00
syncookies.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-22 20:32:51 -04:00
sysctl_net_ipv4.c tcp: refactor F-RTO 2013-03-21 11:47:50 -04:00
tcp_bic.c tcp: fix undo after RTO for BIC 2012-01-20 14:17:26 -05:00
tcp_cong.c tcp: remove Appropriate Byte Count support 2013-02-05 14:51:16 -05:00
tcp_cubic.c tcp: fix undo after RTO for CUBIC 2012-01-20 14:17:26 -05:00
tcp_diag.c inet_diag: Rename inet_diag_req into inet_diag_req_v2 2012-01-11 12:56:06 -08:00
tcp_fastopen.c tcp: TCP Fast Open Server - header & support functions 2012-08-31 20:02:18 -04:00
tcp_highspeed.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_htcp.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_hybla.c tcp: bool conversions 2012-05-17 14:59:59 -04:00
tcp_illinois.c net: fix divide by zero in tcp algorithm illinois 2012-11-01 11:55:59 -04:00
tcp_input.c net: Add MIB counters for checksum errors 2013-04-29 15:14:03 -04:00
tcp_ipv4.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
tcp_lp.c Fix common misspellings 2011-03-31 11:26:23 -03:00
tcp_memcontrol.c net: tcp_memcontrol: minor: remove unused variable 2013-04-14 15:41:49 -04:00
tcp_metrics.c tcp: do not expire TCP fastopen cookies 2013-05-05 16:58:02 -04:00
tcp_minisocks.c tcp: reset timer after any SYNACK retransmit 2013-04-29 15:14:03 -04:00
tcp_output.c net: Add MIB counters for checksum errors 2013-04-29 15:14:03 -04:00
tcp_probe.c net: proc: change proc_net_remove to remove_proc_entry 2013-02-18 14:53:08 -05:00
tcp_scalable.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_timer.c tcp: refactor F-RTO 2013-03-21 11:47:50 -04:00
tcp_vegas.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_vegas.h
tcp_veno.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_westwood.c tcp: refactor F-RTO 2013-03-21 11:47:50 -04:00
tcp_yeah.c Fix common misspellings 2011-03-31 11:26:23 -03:00
tcp.c tcp: gso: do not generate out of order packets 2013-05-16 14:43:40 -07:00
tunnel4.c net: Convert printks to pr_<level> 2012-03-11 23:42:51 -07:00
udp_diag.c netlink: rename ssk to sk in struct netlink_skb_params 2013-04-19 14:57:56 -04:00
udp_impl.h ipv4: fix checkpatch errors 2012-04-15 12:37:19 -04:00
udp.c gso: Handle Trans-Ether-Bridging protocol in skb_network_protocol() 2013-05-08 13:13:30 -07:00
udplite.c net: ipv4: Standardize prefixes for message logging 2012-03-12 17:05:21 -07:00
xfrm4_input.c net: Add skb_unclone() helper function. 2013-02-15 15:10:37 -05:00
xfrm4_mode_beet.c ipsec: be careful of non existing mac headers 2012-02-23 16:50:45 -05:00
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c xfrm: allow to avoid copying DSCP during encapsulation 2013-03-06 07:02:45 +01:00
xfrm4_output.c xfrm4: Don't call icmp_send on local error 2011-07-01 17:33:19 -07:00
xfrm4_policy.c xfrm: make gc_thresh configurable in all namespaces 2013-02-06 11:36:29 +01:00
xfrm4_state.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
xfrm4_tunnel.c net: ipv4: Standardize prefixes for message logging 2012-03-12 17:05:21 -07:00