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David S. Miller c1b4a7e695 [TCP]: Move to new TSO segmenting scheme. 
Make TSO segment transmit size decisions at send time not earlier.

The basic scheme is that we try to build as large a TSO frame as
possible when pulling in the user data, but the size of the TSO frame
output to the card is determined at transmit time.

This is guided by tp->xmit_size_goal.  It is always set to a multiple
of MSS and tells sendmsg/sendpage how large an SKB to try and build.

Later, tcp_write_xmit() and tcp_push_one() chop up the packet if
necessary and conditions warrant.  These routines can also decide to
"defer" in order to wait for more ACKs to arrive and thus allow larger
TSO frames to be emitted.

A general observation is that TSO elongates the pipe, thus requiring a
larger congestion window and larger buffering especially at the sender
side.  Therefore, it is important that applications 1) get a large
enough socket send buffer (this is accomplished by our dynamic send
buffer expansion code) 2) do large enough writes.

Signed-off-by: David S. Miller <davem@davemloft.net>
 		2005-07-05 15:24:38 -07:00
..
ipvs [IPVS]: Close race conditions on ip_vs_conn_tab list modification 2005-06-28 15:40:02 -07:00
netfilter [NETFILTER]: ipt_CLUSTERIP: fix ARP mangling 2005-06-28 12:49:30 -07:00
Kconfig [TCP]: Let TCP_CONG_ADVANCED default to n 2005-06-26 15:21:15 -07:00
Makefile [TCP]: Add Scalable TCP congestion control module. 2005-06-23 12:29:07 -07:00
af_inet.c [IPV4]: Fix crash in ip_rcv while booting related to netconsole 2005-07-05 14:40:10 -07:00
ah4.c [IPSEC]: Add xfrm_init_state 2005-06-20 13:18:08 -07:00
arp.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
datagram.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
devinet.c [PATCH] create a kstrdup library function 2005-06-23 09:45:18 -07:00
esp4.c [IPSEC]: Add xfrm_init_state 2005-06-20 13:18:08 -07:00
fib_frontend.c [NETLINK]: fib_lookup() via netlink 2005-06-20 13:36:39 -07:00
fib_hash.c [NETLINK]: Correctly set NLM_F_MULTI without checking the pid 2005-06-18 22:54:12 -07:00
fib_lookup.h [NETLINK]: Correctly set NLM_F_MULTI without checking the pid 2005-06-18 22:54:12 -07:00
fib_rules.c [NETLINK]: Correctly set NLM_F_MULTI without checking the pid 2005-06-18 22:54:12 -07:00
fib_semantics.c [NETLINK]: Set correct pid for ioctl originating netlink events 2005-06-18 22:55:51 -07:00
fib_trie.c [IPV4]: More broken memory allocation fixes for fib_trie 2005-07-05 15:02:40 -07:00
icmp.c [IPV4]: Sysctl configurable icmp error source address. 2005-06-13 15:19:03 -07:00
igmp.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
inetpeer.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip_forward.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip_fragment.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip_gre.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip_input.c [IPV4]: Snmpv2 Mib IP counter ipInAddrErrors support 2005-06-28 13:06:23 -07:00
ip_options.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip_output.c [IPV4]: Fix crash in ip_rcv while booting related to netconsole 2005-07-05 14:40:10 -07:00
ip_sockglue.c [IPV4/IPV6]: Replace spin_lock_irq with spin_lock_bh 2005-06-18 22:56:18 -07:00
ipcomp.c [IPSEC]: Add xfrm_init_state 2005-06-20 13:18:08 -07:00
ipconfig.c [IPV4]: ipconfig.c: fix dhcp timeout behaviour 2005-06-28 13:21:12 -07:00
ipip.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipmr.c [NETLINK]: Missing initializations in dumped data 2005-06-28 12:55:30 -07:00
multipath.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
multipath_drr.c [IPV4]: Multipath modules need a license to prevent kernel tainting. 2005-06-13 14:29:06 -07:00
multipath_random.c [IPV4]: Multipath modules need a license to prevent kernel tainting. 2005-06-13 14:29:06 -07:00
multipath_rr.c [IPV4]: Multipath modules need a license to prevent kernel tainting. 2005-06-13 14:29:06 -07:00
multipath_wrandom.c [IPV4]: Multipath modules need a license to prevent kernel tainting. 2005-06-13 14:29:06 -07:00
proc.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
protocol.c [PATCH] update Ross Biro bouncing email address 2005-05-05 16:36:49 -07:00
raw.c [IPV4]: [4/4] signed vs unsigned cleanup in net/ipv4/raw.c 2005-06-18 23:00:34 -07:00
route.c [IPV4]: Bug fix in rt_check_expire() 2005-07-05 15:00:32 -07:00
syncookies.c [NET] Rename open_request to request_sock 2005-06-18 22:47:21 -07:00
sysctl_net_ipv4.c [TCP]: Add pluggable congestion control algorithm infrastructure. 2005-06-23 12:19:55 -07:00
tcp.c [TCP]: Move to new TSO segmenting scheme. 2005-07-05 15:24:38 -07:00
tcp_bic.c [TCP]: Add TCP BIC congestion control module. 2005-06-23 12:23:25 -07:00
tcp_cong.c [TCP]: Allow choosing TCP congestion control via sockopt. 2005-06-23 20:37:36 -07:00
tcp_diag.c [TCP]: Report congestion control algorithm in tcp_diag. 2005-06-23 12:21:28 -07:00
tcp_highspeed.c [TCP]: Add High Speed TCP congestion control module. 2005-06-23 12:24:58 -07:00
tcp_htcp.c [TCP]: Add H-TCP congestion control module. 2005-06-23 12:28:11 -07:00
tcp_hybla.c [TCP]: Add TCP Hybla congestion control module. 2005-06-23 12:26:34 -07:00
tcp_input.c [TCP]: Move to new TSO segmenting scheme. 2005-07-05 15:24:38 -07:00
tcp_ipv4.c [TCP]: Move to new TSO segmenting scheme. 2005-07-05 15:24:38 -07:00
tcp_minisocks.c [TCP]: Add pluggable congestion control algorithm infrastructure. 2005-06-23 12:19:55 -07:00
tcp_output.c [TCP]: Move to new TSO segmenting scheme. 2005-07-05 15:24:38 -07:00
tcp_scalable.c [TCP]: Add Scalable TCP congestion control module. 2005-06-23 12:29:07 -07:00
tcp_timer.c [NET] rename struct tcp_listen_opt to struct listen_sock 2005-06-18 22:48:55 -07:00
tcp_vegas.c [TCP]: Add TCP Vegas congestion control module. 2005-06-23 12:27:19 -07:00
tcp_westwood.c [TCP]: Add TCP Westwood congestion control module. 2005-06-23 12:24:09 -07:00
udp.c [IPV4]: Fix BUG() in 2.6.x, udp_poll(), fragments + CONFIG_HIGHMEM 2005-05-30 15:50:15 -07:00
utils.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xfrm4_input.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xfrm4_output.c [IPSEC]: Add XFRM_STATE_NOPMTUDISC flag 2005-06-20 13:21:43 -07:00
xfrm4_policy.c [IPSEC]: Store idev entries 2005-05-03 16:27:10 -07:00
xfrm4_state.c [IPSEC]: Add XFRM_STATE_NOPMTUDISC flag 2005-06-20 13:21:43 -07:00
xfrm4_tunnel.c [IPSEC]: Add xfrm_init_state 2005-06-20 13:18:08 -07:00