Neal Cardwell 02cf4ebd82 tcp: initialize passive-side sk_pacing_rate after 3WHS ... For passive TCP connections, upon receiving the ACK that completes the 3WHS, make sure we set our pacing rate after we get our first RTT sample. On passive TCP connections, when we receive the ACK completing the 3WHS we do not take an RTT sample in tcp_ack(), but rather in tcp_synack_rtt_meas(). So upon receiving the ACK that completes the 3WHS, tcp_ack() leaves sk_pacing_rate at its initial value. Originally the initial sk_pacing_rate value was 0, so passive-side connections defaulted to sysctl_tcp_min_tso_segs (2 segs) in skbuffs made in the first RTT. With a default initial cwnd of 10 packets, this happened to be correct for RTTs 5ms or bigger, so it was hard to see problems in WAN or emulated WAN testing. Since 7eec4174ff ("pkt_sched: fq: fix non TCP flows pacing"), the initial sk_pacing_rate is 0xffffffff. So after that change, passive TCP connections were keeping this value (and using large numbers of segments per skbuff) until receiving an ACK for data. Signed-off-by: Neal Cardwell <ncardwell@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Yuchung Cheng <ycheng@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2013-10-21 18:56:23 -04:00
..
netfilter	netfilter: synproxy: fix BUG_ON triggered by corrupt TCP packets	2013-09-30 12:44:38 +02:00
Kconfig	net: neighbour: Remove CONFIG_ARPD	2013-09-03 21:41:43 -04:00
Makefile	net: gre: move GSO functions to gre_offload	2013-07-03 14:37:39 -07:00
af_inet.c	net: net_secret should not depend on TCP	2013-09-28 15:19:40 -07:00
ah4.c	ipv4: properly refresh rtable entries on pmtu/redirect events	2013-06-03 00:07:42 -07:00
arp.c	net: neighbour: Remove CONFIG_ARPD	2013-09-03 21:41:43 -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	net: igmp: Allow user-space configuration of igmp unsolicited report interval	2013-08-09 11:27:46 -07:00
esp4.c	net: esp{4,6}: fix potential MTU calculation overflows	2013-08-05 12:26:50 -07:00
fib_frontend.c	netlink: fix splat in skb_clone with large messages	2013-06-27 22:44:16 -07:00
fib_lookup.h	…
fib_rules.c	fib_rules: fix suppressor names and default values	2013-08-03 10:40:23 -07:00
fib_semantics.c	ipv4: use next hop exceptions also for input routes	2013-06-28 21:27:47 -07:00
fib_trie.c	fib_trie: remove potential out of bound access	2013-08-05 15:26:11 -07:00
gre_demux.c	net: gre: move GSO functions to gre_offload	2013-07-03 14:37:39 -07:00
gre_offload.c	gso: Update tunnel segmentation to support Tx checksum offload	2013-07-11 12:18:49 -07:00
icmp.c	icmp: avoid allocating large struct on stack	2013-06-03 00:28:44 -07:00
igmp.c	ipv4 igmp: use in_dev_put in timer handlers instead of __in_dev_put	2013-09-30 22:28:56 -07:00
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	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2013-07-09 18:24:39 -07:00
inet_hashtables.c	net: do not call sock_put() on TIMEWAIT sockets	2013-10-02 17:05:54 -04:00
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	ip: generate unique IP identificator if local fragmentation is allowed	2013-09-19 14:11:15 -04:00
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	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-08-16 15:37:26 -07:00
ip_input.c	net: add SNMP counters tracking incoming ECN bits	2013-08-08 22:24:59 -07:00
ip_options.c	net/ipv4: Ensure that location of timestamp option is stored	2013-03-12 05:35:39 -04:00
ip_output.c	ip_output: do skb ufo init for peeked non ufo skb as well	2013-10-19 19:20:52 -04:00
ip_sockglue.c	net: prevent setting ttl=0 via IP_TTL	2013-01-08 17:57:10 -08:00
ip_tunnel.c	ip_tunnel: Remove double unregister of the fallback device	2013-10-01 12:42:16 -04:00
ip_tunnel_core.c	ip_tunnel_core: Change __skb_push back to skb_push	2013-10-01 12:42:16 -04:00
ip_vti.c	vti: get rid of nf mark rule in prerouting	2013-10-11 14:52:17 -04:00
ipcomp.c	ipv4: properly refresh rtable entries on pmtu/redirect events	2013-06-03 00:07:42 -07:00
ipconfig.c	ipconfig: add informative timeout messages while waiting for carrier	2013-04-02 14:35:33 -04:00
ipip.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-09-05 14:58:52 -04:00
ipmr.c	ip: generate unique IP identificator if local fragmentation is allowed	2013-09-19 14:11:15 -04:00
netfilter.c	netfilter: add my copyright statements	2013-04-18 20:27:55 +02:00
ping.c	net: proc_fs: trivial: print UIDs as unsigned int	2013-08-15 14:37:46 -07:00
proc.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-08-16 15:37:26 -07:00
protocol.c	ipv4: Disallow non-namespace aware protocols to register.	2013-02-05 14:42:23 -05:00
raw.c	net: raw: do not report ICMP redirects to user space	2013-09-24 10:15:49 -04:00
route.c	ipv4: fix ineffective source address selection	2013-10-07 15:26:46 -04:00
syncookies.c	net: syncookies: export cookie_v4_init_sequence/cookie_v4_check	2013-08-28 00:27:44 +02:00
sysctl_net_ipv4.c	tcp: TSO packets automatic sizing	2013-08-29 15:50:06 -04:00
tcp.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-09-05 14:58:52 -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: cubic: fix bug in bictcp_acked()	2013-08-07 10:35:08 -07:00
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: add server ip to encrypt cookie in fast open	2013-08-10 00:35:33 -07:00
tcp_highspeed.c	…
tcp_htcp.c	…
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	tcp: initialize passive-side sk_pacing_rate after 3WHS	2013-10-21 18:56:23 -04:00
tcp_ipv4.c	tcp: Change return value of tcp_rcv_established()	2013-09-04 00:27:28 -04:00
tcp_lp.c	…
tcp_memcontrol.c	memcg: rename RESOURCE_MAX to RES_COUNTER_MAX	2013-09-12 15:38:02 -07:00
tcp_metrics.c	tcp: fix RTO calculated from cached RTT	2013-09-17 19:08:08 -04:00
tcp_minisocks.c	tcp: consolidate SYNACK RTT sampling	2013-07-22 17:53:42 -07:00
tcp_offload.c	net: tcp: move GRO/GSO functions to tcp_offload	2013-06-07 14:39:05 -07:00
tcp_output.c	tcp: remove the sk_can_gso() check from tcp_set_skb_tso_segs()	2013-10-17 16:08:08 -04:00
tcp_probe.c	tcp: Change return value of tcp_rcv_established()	2013-09-04 00:27:28 -04:00
tcp_scalable.c	…
tcp_timer.c	tcp: refactor F-RTO	2013-03-21 11:47:50 -04:00
tcp_vegas.c	…
tcp_vegas.h	…
tcp_veno.c	…
tcp_westwood.c	tcp: refactor F-RTO	2013-03-21 11:47:50 -04:00
tcp_yeah.c	…
tunnel4.c	net: Convert printks to pr_<level>	2012-03-11 23:42:51 -07:00
udp.c	net: udp: do not report ICMP redirects to user space	2013-09-24 10:15:49 -04:00
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_offload.c	net: udp4: move GSO functions to udp_offload	2013-06-12 00:47:25 -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	ip: generate unique IP identificator if local fragmentation is allowed	2013-09-19 14:11:15 -04:00
xfrm4_output.c	xfrm: revert ipv4 mtu determination to dst_mtu	2013-08-26 12:40:53 +02:00
xfrm4_policy.c	xfrm: Decode sessions with output interface.	2013-09-16 09:39:43 +02:00
xfrm4_state.c	xfrm: make local error reporting more robust	2013-08-14 13:07:12 +02:00
xfrm4_tunnel.c	sit: add IPv4 over IPv4 support	2013-05-31 17:19:05 -07:00