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freebsd-skq/sys/netinet
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andre b824892b57 Increase the initial CWND to 10 segments as defined in IETF TCPM 
draft-ietf-tcpm-initcwnd-05. It explains why the increased initial
window improves the overall performance of many web services without
risking congestion collapse.

As long as it remains a draft it is placed under a sysctl marking it
as experimental:
 net.inet.tcp.experimental.initcwnd10 = 1
When it becomes an official RFC soon the sysctl will be changed to
the RFC number and moved to net.inet.tcp.

This implementation differs from the RFC draft in that it is a bit
more conservative in the case of packet loss on SYN or SYN|ACK because
we haven't reduced the default RTO to 1 second yet.  Also the restart
window isn't yet increased as allowed.  Both will be adjusted with
upcoming changes.

Is is enabled by default.  In Linux it is enabled since kernel 3.0.

MFC after:	2 weeks
2012-10-28 19:47:46 +00:00
..
cc
Staticize malloc types.
2011-04-13 11:28:46 +00:00
khelp
The TCP PAWS fix for kernels with fast tick rates (r231767) changed the TCP
2012-08-17 01:49:51 +00:00
libalias
Avoid potential bad pointer dereference.
2012-10-17 20:23:07 +00:00
accf_data.c
…
accf_dns.c
…
accf_http.c
Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.
2011-11-07 15:43:11 +00:00
cc.h
Use the full and proper company name for Swinburne University of Technology
2011-04-12 08:13:18 +00:00
icmp6.h
Correct typo in the RFC number for the constants based on IANA assignments
2012-03-04 18:47:20 +00:00
icmp_var.h
Add rate limitation for SCTP OOTB responses.
2012-06-18 17:11:24 +00:00
if_atm.c
Bring back (most of) NATM to avoid further bitrot after r186119.
2010-12-15 22:58:45 +00:00
if_atm.h
…
if_ether.c
Provide a sysctl switch that allows to install ARP entries
2012-09-03 14:29:28 +00:00
if_ether.h
- Updated TOE support in the kernel.
2012-06-19 07:34:13 +00:00
igmp_var.h
…
igmp.c
Do not reduce ip_len by size of IP header in the ip_input()
2012-10-23 08:33:13 +00:00
igmp.h
…
in_cksum.c
nobody uses this file except the userspace ipfw code, but the cast
2012-07-31 08:04:49 +00:00
in_debug.c
Remove last remnants of classful addressing:
2011-10-15 16:28:06 +00:00
in_gif.c
Switch the entire IPv4 stack to keep the IP packet header
2012-10-22 21:09:03 +00:00
in_gif.h
…
in_mcast.c
Remove unused variable.
2012-01-24 14:27:14 +00:00
in_pcb.c
There is a complex race in in_pcblookup_hash() and in_pcblookup_group().
2012-10-02 12:03:02 +00:00
in_pcb.h
There is a complex race in in_pcblookup_hash() and in_pcblookup_group().
2012-10-02 12:03:02 +00:00
in_pcbgroup.c
Implement a CPU-affine TCP and UDP connection lookup data structure,
2011-06-06 12:55:02 +00:00
in_proto.c
Bunch of fixes to pfsync(4) module load/unload:
2012-01-09 08:50:22 +00:00
in_rmx.c
Cleanup documentation: cloning route support has been removed in r186119.
2012-10-13 09:31:01 +00:00
in_systm.h
…
in_var.h
Do not check if found IPv4 rte is dynamic if net.inet.icmp.drop_redirect is
2012-10-10 19:06:11 +00:00
in.c
Though I disagree, I conceed to jhb & Rui. Note
2012-08-19 11:54:02 +00:00
in.h
Switch the entire IPv4 stack to keep the IP packet header
2012-10-22 21:09:03 +00:00
ip6.h
Fix more continuous/contiguous typos (cf. r215955)
2010-11-27 21:51:39 +00:00
ip_carp.c
Switch the entire IPv4 stack to keep the IP packet header
2012-10-22 21:09:03 +00:00
ip_carp.h
Restore a feature that was present in 5.x and 6.x, and was cleared in
2011-12-20 13:53:31 +00:00
ip_divert.c
Switch the entire IPv4 stack to keep the IP packet header
2012-10-22 21:09:03 +00:00
ip_divert.h
…
ip_dummynet.h
s/lenght/length/ in comments
2012-08-07 07:52:25 +00:00
ip_ecn.c
…
ip_ecn.h
…
ip_encap.c
…
ip_encap.h
…
ip_fastfwd.c
o Remove last argument to ip_fragment(), and obtain all needed information
2012-10-26 21:06:33 +00:00
ip_fw.h
Revert r234834 per luigi@ request.
2012-05-03 08:56:43 +00:00
ip_gre.c
Switch the entire IPv4 stack to keep the IP packet header
2012-10-22 21:09:03 +00:00
ip_gre.h
…
ip_icmp.c
Use ip_stripoptions() instead of handrolled version.
2012-10-23 10:30:09 +00:00
ip_icmp.h
…
ip_id.c
…
ip_input.c
Remove the IPFIREWALL_FORWARD kernel option and make possible to turn
2012-10-25 09:39:14 +00:00
ip_ipsec.c
Switch the entire IPv4 stack to keep the IP packet header
2012-10-22 21:09:03 +00:00
ip_ipsec.h
…
ip_mroute.c
o Remove last argument to ip_fragment(), and obtain all needed information
2012-10-26 21:06:33 +00:00
ip_mroute.h
Remove route caching from IP multicast routing code. There is no
2012-07-02 19:44:18 +00:00
ip_options.c
Simplify ip_stripoptions() reducing number of intermediate
2012-10-23 10:29:31 +00:00
ip_options.h
In ip_stripoptions():
2012-10-12 09:24:24 +00:00
ip_output.c
o Remove last argument to ip_fragment(), and obtain all needed information
2012-10-26 21:06:33 +00:00
ip_var.h
o Remove last argument to ip_fragment(), and obtain all needed information
2012-10-26 21:06:33 +00:00
ip.h
Add ToS definitions for DiffServ Codepoints as per RFC2474.
2012-05-04 21:00:32 +00:00
pim_var.h
…
pim.h
…
raw_ip.c
Do not reduce ip_len by size of IP header in the ip_input()
2012-10-23 08:33:13 +00:00
sctp_asconf.c
Whitespace cleanup.
2012-09-08 20:54:54 +00:00
sctp_asconf.h
Pass the src and dst address of a received packet explicitly around.
2012-06-28 16:01:08 +00:00
sctp_auth.c
Using %p in a format string requires a void *.
2012-09-05 18:52:01 +00:00
sctp_auth.h
Use consistent text at the begining of the files.
2012-05-23 11:26:28 +00:00
sctp_bsd_addr.c
Testing an interface property should depend on the interface, not
2012-08-04 08:03:30 +00:00
sctp_bsd_addr.h
Do packet logging in a consistent way.
2012-06-24 21:25:54 +00:00
sctp_cc_functions.c
Get rid of a gcc'ism.
2012-09-06 07:03:56 +00:00
sctp_constants.h
Use consistent text at the begining of the files.
2012-05-23 11:26:28 +00:00
sctp_crc32.c
Use consistent text at the begining of the files.
2012-05-23 11:26:28 +00:00
sctp_crc32.h
Use consistent text at the begining of the files.
2012-05-23 11:26:28 +00:00
sctp_dtrace_declare.h
Use consistent text at the begining of the files.
2012-05-23 11:26:28 +00:00
sctp_dtrace_define.h
Use consistent text at the begining of the files.
2012-05-23 11:26:28 +00:00
sctp_header.h
Don't include a structure containing a flexible array in another
2012-09-07 13:36:42 +00:00
sctp_indata.c
Don't include a structure containing a flexible array in another
2012-09-07 13:36:42 +00:00
sctp_indata.h
Pass the src and dst address of a received packet explicitly around.
2012-06-28 16:01:08 +00:00
sctp_input.c
Do not reduce ip_len by size of IP header in the ip_input()
2012-10-23 08:33:13 +00:00
sctp_input.h
Don't include a structure containing a flexible array in another
2012-09-07 13:36:42 +00:00
sctp_lock_bsd.h
Use consistent text at the begining of the files.
2012-05-23 11:26:28 +00:00
sctp_os_bsd.h
Pass the src and dst address of a received packet explicitly around.
2012-06-28 16:01:08 +00:00
sctp_os.h
Use consistent text at the begining of the files.
2012-05-23 11:26:28 +00:00
sctp_output.c
Switch the entire IPv4 stack to keep the IP packet header
2012-10-22 21:09:03 +00:00
sctp_output.h
Small cleanups. No functional change.
2012-09-22 14:39:20 +00:00
sctp_pcb.c
Whitespace change.
2012-09-23 07:43:10 +00:00
sctp_pcb.h
Pass the src and dst address of a received packet explicitly around.
2012-06-28 16:01:08 +00:00
sctp_peeloff.c
Use consistent text at the begining of the files.
2012-05-23 11:26:28 +00:00
sctp_peeloff.h
Use consistent text at the begining of the files.
2012-05-23 11:26:28 +00:00
sctp_ss_functions.c
Use consistent text at the begining of the files.
2012-05-23 11:26:28 +00:00
sctp_structs.h
Don't include a structure containing a flexible array in another
2012-09-07 13:36:42 +00:00
sctp_sysctl.c
Whitespace cleanup.
2012-06-25 17:15:09 +00:00
sctp_sysctl.h
Whitespace cleanup.
2012-06-25 17:15:09 +00:00
sctp_timer.c
Using %p in a format string requires a void *.
2012-09-05 18:52:01 +00:00
sctp_timer.h
Use consistent text at the begining of the files.
2012-05-23 11:26:28 +00:00
sctp_uio.h
Remove __P.
2012-10-22 21:49:56 +00:00
sctp_usrreq.c
Switch the entire IPv4 stack to keep the IP packet header
2012-10-22 21:09:03 +00:00
sctp_var.h
Remove __P.
2012-10-22 21:49:56 +00:00
sctp.h
Undefine SCTP_PACKED before including sctp_uio.h, which doesn't
2012-05-25 11:14:08 +00:00
sctputil.c
Switch the entire IPv4 stack to keep the IP packet header
2012-10-22 21:09:03 +00:00
sctputil.h
Pass the src and dst address of a received packet explicitly around.
2012-06-28 16:01:08 +00:00
siftr.c
Switch the entire IPv4 stack to keep the IP packet header
2012-10-22 21:09:03 +00:00
tcp_debug.c
Switch the entire IPv4 stack to keep the IP packet header
2012-10-22 21:09:03 +00:00
tcp_debug.h
…
tcp_fsm.h
…
tcp_hostcache.c
- Update cachelimit after hashsize and bucketlimit were set.
2012-10-19 14:00:03 +00:00
tcp_hostcache.h
…
tcp_input.c
Increase the initial CWND to 10 segments as defined in IETF TCPM
2012-10-28 19:47:46 +00:00
tcp_lro.c
Make TCP LRO work properly with VIMAGE kernels rather than just panicing.
2012-06-01 11:42:50 +00:00
tcp_lro.h
MFp4 bz_ipv6_fast:
2012-05-24 23:03:23 +00:00
tcp_offload.c
- Updated TOE support in the kernel.
2012-06-19 07:34:13 +00:00
tcp_offload.h
- Updated TOE support in the kernel.
2012-06-19 07:34:13 +00:00
tcp_output.c
Prevent a flurry of forced window updates when an application is
2012-10-28 17:40:35 +00:00
tcp_reass.c
Simplify implementation of net.inet.tcp.reass.maxsegments and
2012-10-28 17:59:46 +00:00
tcp_sack.c
Covers values if (BYTES_THIS_ACK(tp, th) / tp->t_maxseg) value is from
2011-03-28 19:03:56 +00:00
tcp_seq.h
Fix PAWS (Protect Against Wrapped Sequence numbers) in cases when
2012-02-15 16:09:56 +00:00
tcp_subr.c
Switch the entire IPv4 stack to keep the IP packet header
2012-10-22 21:09:03 +00:00
tcp_syncache.c
For retransmits of SYN|ACK from the syncache use the slightly more
2012-10-28 19:02:07 +00:00
tcp_syncache.h
Change the syncache count reporting the current number of entries
2012-10-28 18:07:34 +00:00
tcp_timer.c
Update comment to reflect the change made in r242263.
2012-10-28 19:22:18 +00:00
tcp_timer.h
For retransmits of SYN|ACK from the syncache use the slightly more
2012-10-28 19:02:07 +00:00
tcp_timewait.c
Switch the entire IPv4 stack to keep the IP packet header
2012-10-22 21:09:03 +00:00
tcp_usrreq.c
Fix bug in TCP_KEEPCNT setting, which slipped in in the last round
2012-09-27 07:13:21 +00:00
tcp_var.h
Increase the initial CWND to 10 segments as defined in IETF TCPM
2012-10-28 19:47:46 +00:00
tcp.h
Add new socket options: TCP_KEEPINIT, TCP_KEEPIDLE, TCP_KEEPINTVL and
2012-02-05 16:53:02 +00:00
tcpip.h
…
toecore.c
Revert previous commit...
2012-10-10 08:36:38 +00:00
toecore.h
Correctly handle the case where an inp has already been dropped by the time
2012-08-21 18:09:33 +00:00
udp_usrreq.c
Remove the IPFIREWALL_FORWARD kernel option and make possible to turn
2012-10-25 09:39:14 +00:00
udp_var.h
Export the udp_cksum sysctl for upcoming SCTP work. Rather than always,
2012-03-27 15:14:29 +00:00
udp.h
Trim extra spaces before tabs.
2011-01-07 21:40:34 +00:00