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linux/net/ipv4
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Tom Herbert 662880f442 net: Allow GRO to use and set levels of checksum unnecessary 
Allow GRO path to "consume" checksums provided in CHECKSUM_UNNECESSARY
and to report new checksums verfied for use in fallback to normal
path.

Change GRO checksum path to track csum_level using a csum_cnt field
in NAPI_GRO_CB. On GRO initialization, if ip_summed is
CHECKSUM_UNNECESSARY set NAPI_GRO_CB(skb)->csum_cnt to
skb->csum_level + 1. For each checksum verified, decrement
NAPI_GRO_CB(skb)->csum_cnt while its greater than zero. If a checksum
is verfied and NAPI_GRO_CB(skb)->csum_cnt == 0, we have verified a
deeper checksum than originally indicated in skbuf so increment
csum_level (or initialize to CHECKSUM_UNNECESSARY if ip_summed is
CHECKSUM_NONE or CHECKSUM_COMPLETE).

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-29 20:41:11 -07:00
..
netfilter
net: use reciprocal_scale() helper
2014-08-23 12:21:21 -07:00
af_inet.c
net-gre-gro: Fix a bug that breaks the forwarding path
2014-07-16 14:45:26 -07:00
ah4.c
ah4: Use the IPsec protocol multiplexer API
2014-02-25 07:04:17 +01:00
arp.c
ipv4: arp: update neighbour address when a gratuitous arp is received and arp_accept is set
2014-01-02 00:08:38 -05:00
cipso_ipv4.c
netlabel: shorter names for the NetLabel catmap funcs/structs
2014-08-01 11:17:37 -04:00
datagram.c
net: Save TX flow hash in sock and set in skbuf on xmit
2014-07-07 21:14:21 -07:00
devinet.c
ipv4: fail early when creating netdev named all or default
2014-07-29 11:43:50 -07:00
esp4.c
esp4: Use the IPsec protocol multiplexer API
2014-02-25 07:04:17 +01:00
fib_frontend.c
ipv4: Restore accept_local behaviour in fib_validate_source()
2014-08-22 12:23:10 -07:00
fib_lookup.h
ipv4: make fib_detect_death static
2013-12-28 17:01:46 -05:00
fib_rules.c
inet: fix NULL pointer Oops in fib(6)_rule_suppress
2013-12-10 17:54:23 -05:00
fib_semantics.c
ipv4: fib_semantics: increment fib_info_cnt after fib_info allocation
2014-05-07 17:14:32 -04:00
fib_trie.c
list: fix order of arguments for hlist_add_after(_rcu)
2014-08-06 18:01:24 -07:00
gre_demux.c
net: Clarification of CHECKSUM_UNNECESSARY
2014-08-29 20:41:11 -07:00
gre_offload.c
net: Allow GRO to use and set levels of checksum unnecessary
2014-08-29 20:41:11 -07:00
icmp.c
ipv4: remove nested rcu_read_lock/unlock
2014-08-02 15:27:35 -07:00
igmp.c
net/ipv4/igmp.c: Replace rcu_dereference() with rcu_access_pointer()
2014-08-22 12:23:10 -07:00
inet_connection_sock.c
ipv4: make ip_local_reserved_ports per netns
2014-05-14 15:31:45 -04:00
inet_diag.c
inet_diag: fix inet_diag_dump_icsk() to use correct state for timewait sockets
2014-01-13 22:35:46 -08:00
inet_fragment.c
inet: frags: use kmem_cache for inet_frag_queue
2014-08-02 15:31:31 -07:00
inet_hashtables.c
net: use reciprocal_scale() helper
2014-08-23 12:21:21 -07:00
inet_lro.c
lro: remove dead code
2013-12-29 16:34:25 -05:00
inet_timewait_sock.c
tcp/dccp: remove twchain
2013-10-08 23:19:24 -04:00
inetpeer.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-06-12 14:27:40 -07:00
ip_forward.c
net: rename local_df to ignore_df
2014-05-12 14:03:41 -04:00
ip_fragment.c
inet: frags: use kmem_cache for inet_frag_queue
2014-08-02 15:31:31 -07:00
ip_gre.c
gre: allow changing mac address when device is up
2014-06-10 22:46:42 -07:00
ip_input.c
net: Fix memory leak if TPROXY used with TCP early demux
2014-01-27 16:22:11 -08:00
ip_options.c
ipv4: fix buffer overflow in ip_options_compile()
2014-07-21 20:16:26 -07:00
ip_output.c
net-timestamp: add key to disambiguate concurrent datagrams
2014-08-05 16:35:54 -07:00
ip_sockglue.c
ipv4: clean up cast warning in do_ip_getsockopt
2014-07-29 16:31:16 -07:00
ip_tunnel_core.c
net: Support for multiple checksums with gso
2014-06-04 22:46:38 -07:00
ip_tunnel.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2014-08-05 18:46:26 -07:00
ip_vti.c
vti: Simplify error handling in module init and exit
2014-06-26 08:21:57 +02:00
ipcomp.c
ipcomp4: Use the IPsec protocol multiplexer API
2014-02-25 07:04:17 +01:00
ipconfig.c
ipconfig: Use time_before
2014-08-22 12:23:11 -07:00
ipip.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2014-06-11 16:02:55 -07:00
ipmr.c
net: set name_assign_type in alloc_netdev()
2014-07-15 16:12:48 -07:00
Kconfig
udp: Add udp_sock_create for UDP tunnels to open listener socket
2014-07-14 16:12:15 -07:00
Makefile
udp: Add udp_sock_create for UDP tunnels to open listener socket
2014-07-14 16:12:15 -07:00
netfilter.c
netfilter: remove double colon
2014-02-19 11:41:25 +01:00
ping.c
net: use inet6_iif instead of IP6CB()->iif
2014-07-31 22:37:06 -07:00
proc.c
inet: frag: don't account number of fragment queues
2014-07-27 22:34:36 -07:00
protocol.c
net: remove outdated comment for ipv4 and ipv6 protocol handler
2013-11-28 18:47:51 -05:00
raw.c
ipv4: Make IP_MULTICAST_ALL and IP_MSFILTER work on raw sockets
2014-07-23 15:13:26 -07:00
route.c
ipv4: removed redundant conditional
2014-08-08 10:22:22 -07:00
syncookies.c
tcp: syncookies: mark cookie_secret read_mostly
2014-08-27 16:30:49 -07:00
sysctl_net_ipv4.c
ipv4: make ip_local_reserved_ports per netns
2014-05-14 15:31:45 -04:00
tcp_bic.c
tcp: remove in_flight parameter from cong_avoid() methods
2014-05-03 19:23:07 -04:00
tcp_cong.c
tcp: remove in_flight parameter from cong_avoid() methods
2014-05-03 19:23:07 -04:00
tcp_cubic.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2014-05-12 13:19:14 -04:00
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: remove unnecessary tcp_sk assignment.
2014-06-16 21:35:00 -07:00
tcp_highspeed.c
tcp: remove in_flight parameter from cong_avoid() methods
2014-05-03 19:23:07 -04:00
tcp_htcp.c
tcp: remove in_flight parameter from cong_avoid() methods
2014-05-03 19:23:07 -04:00
tcp_hybla.c
tcp: remove in_flight parameter from cong_avoid() methods
2014-05-03 19:23:07 -04:00
tcp_illinois.c
tcp: remove in_flight parameter from cong_avoid() methods
2014-05-03 19:23:07 -04:00
tcp_input.c
tcp: improve undo on timeout
2014-08-22 21:28:02 -07:00
tcp_ipv4.c
tcp: fix tcp_release_cb() to dispatch via address family for mtu_reduced()
2014-08-14 14:38:54 -07:00
tcp_lp.c
tcp: remove in_flight parameter from cong_avoid() methods
2014-05-03 19:23:07 -04:00
tcp_memcontrol.c
cgroup: replace cgroup_add_cftypes() with cgroup_add_legacy_cftypes()
2014-07-15 11:05:09 -04:00
tcp_metrics.c
tcp: don't allow syn packets without timestamps to pass tcp_tw_recycle logic
2014-08-14 14:38:54 -07:00
tcp_minisocks.c
inet: move ipv6only in sock_common
2014-07-01 23:46:21 -07:00
tcp_offload.c
tcp: Call skb_gro_checksum_validate
2014-08-24 18:09:24 -07:00
tcp_output.c
tcp: fix tcp_release_cb() to dispatch via address family for mtu_reduced()
2014-08-14 14:38:54 -07:00
tcp_probe.c
tcp: switch rtt estimations to usec resolution
2014-02-26 17:08:40 -05:00
tcp_scalable.c
tcp: remove in_flight parameter from cong_avoid() methods
2014-05-03 19:23:07 -04:00
tcp_timer.c
tcp: reduce spurious retransmits due to transient SACK reneging
2014-08-05 16:29:33 -07:00
tcp_vegas.c
tcp: Fix integer-overflow in TCP vegas
2014-07-30 17:31:06 -07:00
tcp_vegas.h
net: ipv4/ipv6: Remove extern from function prototypes
2013-10-19 19:12:11 -04:00
tcp_veno.c
tcp: Fix integer-overflows in TCP veno
2014-07-30 17:31:06 -07:00
tcp_westwood.c
tcp: remove unused min_cwnd member of tcp_congestion_ops
2014-02-13 18:22:34 -05:00
tcp_yeah.c
tcp: remove in_flight parameter from cong_avoid() methods
2014-05-03 19:23:07 -04:00
tcp.c
tcp: don't use timestamp from repaired skb-s to calculate RTT (v2)
2014-08-14 14:38:54 -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
net: ipv4/ipv6: Remove extern from function prototypes
2013-10-19 19:12:11 -04:00
udp_offload.c
net: Allow GRO to use and set levels of checksum unnecessary
2014-08-29 20:41:11 -07:00
udp_tunnel.c
udp: Add udp_sock_create for UDP tunnels to open listener socket
2014-07-14 16:12:15 -07:00
udp.c
udp: additional GRO support
2014-08-24 18:09:24 -07:00
udplite.c
net: Eliminate no_check from protosw
2014-05-23 16:28:53 -04:00
xfrm4_input.c
xfrm4: Add IPsec protocol multiplexer
2014-02-25 07:04:16 +01:00
xfrm4_mode_beet.c
ipv4: ERROR: code indent should use tabs where possible
2013-12-26 13:43:21 -05:00
xfrm4_mode_transport.c
…
xfrm4_mode_tunnel.c
inetpeer: get rid of ip_id_count
2014-06-02 11:00:41 -07:00
xfrm4_output.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2014-05-24 00:32:30 -04:00
xfrm4_policy.c
xfrm: Introduce xfrm_input_afinfo to access the the callbacks properly
2014-03-14 07:28:07 +01:00
xfrm4_protocol.c
xfrm4: Remove duplicate semicolon
2014-06-30 07:49:47 +02:00
xfrm4_state.c
inet: make no_pmtu_disc per namespace and kill ipv4_config
2013-12-18 16:58:20 -05:00
xfrm4_tunnel.c
sit: add IPv4 over IPv4 support
2013-05-31 17:19:05 -07:00