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freebsd-dev/sys/net
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Andre Oppermann 97d8d152c2 Introduce tcp_hostcache and remove the tcp specific metrics from 
the routing table.  Move all usage and references in the tcp stack
from the routing table metrics to the tcp hostcache.

It caches measured parameters of past tcp sessions to provide better
initial start values for following connections from or to the same
source or destination.  Depending on the network parameters to/from
the remote host this can lead to significant speedups for new tcp
connections after the first one because they inherit and shortcut
the learning curve.

tcp_hostcache is designed for multiple concurrent access in SMP
environments with high contention and is hash indexed by remote
ip address.

It removes significant locking requirements from the tcp stack with
regard to the routing table.

Reviewed by:	sam (mentor), bms
Reviewed by:	-net, -current, core@kame.net (IPv6 parts)
Approved by:	re (scottl)
2003-11-20 20:07:39 +00:00
..
bpf_compat.h Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
bpf_filter.c Turn on BPF_ALIGN for all non-i386 platforms, instead of having an 2002-07-05 00:06:08 +00:00
bpf.c - Implement selwakeuppri() which allows raising the priority of a 2003-11-09 09:17:26 +00:00
bpf.h Add a new macro M_ASSERTVALID which ensures that the mbuf in question 2003-10-19 22:33:41 +00:00
bpfdesc.h Modify the MAC Framework so that instead of embedding a (struct label) 2003-11-12 03:14:31 +00:00
bridge.c Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
bridge.h network interface and link layer changes: 2002-11-15 00:00:15 +00:00
bsd_comp.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ethernet.h general cleanups mostly aimed at improving portability of drivers 2002-11-14 23:28:47 +00:00
fddi.h network interface and link layer changes: 2002-11-15 00:00:15 +00:00
if_arc.h - add support for IPX (tested with mount -t nwfs and mars_nwe), 2003-01-24 01:32:20 +00:00
if_arcsubr.c Introduce ip_fastforward and remove ip_flow. 2003-11-14 21:02:22 +00:00
if_arp.h - Use if_broadcastaddr from struct ifnet rather than relying on 2003-03-21 17:53:16 +00:00
if_atm.h Remove the ATMIOCENA and ATMIOCDIS ioctl. Everyting has been converted 2003-08-06 14:53:27 +00:00
if_atmsubr.c Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
if_disc.c Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
if_dl.h
if_ef.c Introduce ip_fastforward and remove ip_flow. 2003-11-14 21:02:22 +00:00
if_ethersubr.c Introduce ip_fastforward and remove ip_flow. 2003-11-14 21:02:22 +00:00
if_faith.c Introduce tcp_hostcache and remove the tcp specific metrics from 2003-11-20 20:07:39 +00:00
if_fddisubr.c Introduce ip_fastforward and remove ip_flow. 2003-11-14 21:02:22 +00:00
if_gif.c Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
if_gif.h - after gif_set_tunnel(), psrc/pdst may be null. set IFF_RUNNING accordingly. 2002-10-16 19:49:37 +00:00
if_gre.c Fix a bug whereby the physical endpoints of a gre(4) tunnel would not 2003-11-14 20:58:00 +00:00
if_gre.h MFS: recognize gre packets used in the WCCP protocol. 2002-12-07 14:22:05 +00:00
if_iso88025subr.c Introduce ip_fastforward and remove ip_flow. 2003-11-14 21:02:22 +00:00
if_llc.h s/__attribute__((__packed__))/__packed/g 2002-09-23 06:25:08 +00:00
if_loop.c Introduce tcp_hostcache and remove the tcp specific metrics from 2003-11-20 20:07:39 +00:00
if_media.c Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
if_media.h add monitor mode 2003-07-21 02:49:42 +00:00
if_mib.c Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
if_mib.h
if_ppp.c Introduce ip_fastforward and remove ip_flow. 2003-11-14 21:02:22 +00:00
if_ppp.h
if_pppvar.h Make ppp(4) devices clonable and unloadable. 2002-08-09 15:30:48 +00:00
if_sl.c Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
if_slvar.h
if_sppp.h
if_spppsubr.c Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
if_stf.c Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
if_stf.h
if_tap.c - Implement selwakeuppri() which allows raising the priority of a 2003-11-09 09:17:26 +00:00
if_tap.h
if_tapvar.h
if_tun.c - Implement selwakeuppri() which allows raising the priority of a 2003-11-09 09:17:26 +00:00
if_tun.h
if_tunvar.h Correctly name r_unit member tun_unit. 2003-09-27 21:43:16 +00:00
if_types.h use official # for IFT_STF 2003-10-26 14:29:04 +00:00
if_var.h Modify the MAC Framework so that instead of embedding a (struct label) 2003-11-12 03:14:31 +00:00
if_vlan_var.h - In vlan_input(), always mask off all but the VLID bits from tags 2003-07-08 21:54:20 +00:00
if_vlan.c - vlan_start(): Increment the correct interface statistics member. 2003-11-12 12:58:19 +00:00
if.c Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
if.h Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
iso88025.h Fix whitespace issues. 2003-03-15 23:55:33 +00:00
net_osdep.c Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
net_osdep.h - update comments to refrect recent BSDs. 2003-11-04 14:08:31 +00:00
netisr.c o add a flags parameter to netisr_register that is used to specify 2003-11-08 22:28:40 +00:00
netisr.h o add a flags parameter to netisr_register that is used to specify 2003-11-08 22:28:40 +00:00
pfil.c o update PFIL_HOOKS support to current API used by netbsd 2003-09-23 17:54:04 +00:00
pfil.h o update PFIL_HOOKS support to current API used by netbsd 2003-09-23 17:54:04 +00:00
pfkeyv2.h fix comments. 2003-11-14 18:17:07 +00:00
ppp_comp.h
ppp_deflate.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ppp_defs.h
ppp_tty.c Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
radix.c While cleaning out my tree, fix another strict alias warning that would 2003-09-22 23:24:18 +00:00
radix.h add R_Zalloc definition that returns pre-zero'd memory 2003-08-19 17:23:07 +00:00
raw_cb.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
raw_cb.h
raw_usrreq.c Introduce a MAC label reference in 'struct inpcb', which caches 2003-11-18 00:39:07 +00:00
route.c Remove RTF_PRCLONING from routing table and adjust users of it 2003-11-20 19:47:31 +00:00
route.h Introduce tcp_hostcache and remove the tcp specific metrics from 2003-11-20 20:07:39 +00:00
rtsock.c Introduce tcp_hostcache and remove the tcp specific metrics from 2003-11-20 20:07:39 +00:00
slcompress.c Don't use ovbcopy(); use void * instead of char *. 2003-04-04 12:11:46 +00:00
slcompress.h
slip.h
zlib.c chase more of the MIN/MAX mess. *sigh* 2003-02-02 13:52:25 +00:00
zlib.h Add one copy of crc32() and crc32_tab[] in libkern, and remove it two other 2002-05-29 20:24:09 +00:00