linux-toradex.git/net/ipv4/tcp.c, branch v2.6.19.2

[TCP]: Fix up sysctl_tcp_mem initialization.

2006-11-16T05:18:51+00:00

Fix up tcp_mem initial settings to take into account the size of the
hash entries (different on SMP and non-SMP systems).

Signed-off-by: John Heffner 
Signed-off-by: David S. Miller

[TCP]: Don't use highmem in tcp hash size calculation.

2006-11-07T23:10:11+00:00

This patch removes consideration of high memory when determining TCP
hash table sizes.  Taking into account high memory results in tcp_mem
values that are too large.

Signed-off-by: John Heffner 
Signed-off-by: David S. Miller

[TCP]: Send ACKs each 2nd received segment.

2006-09-22T22:19:05+00:00

It does not affect either mss-sized connections (obviously) or
connections controlled by Nagle (because there is only one small
segment in flight).

The idea is to record the fact that a small segment arrives on a
connection, where one small segment has already been received and
still not-ACKed. In this case ACK is forced after tcp_recvmsg() drains
receive buffer.

In other words, it is a "soft" each-2nd-segment ACK, which is enough
to preserve ACK clock even when ABC is enabled.

Signed-off-by: Alexey Kuznetsov 
Signed-off-by: David S. Miller

[NET]: Use SLAB_PANIC

2006-09-22T22:18:19+00:00

Signed-off-by: Alexey Dobriyan 
Signed-off-by: David S. Miller

[NET/IPV4/IPV6]: Change some sysctl variables to __read_mostly

2006-09-22T21:55:03+00:00

Change net/core, ipv4 and ipv6 sysctl variables to __read_mostly.

Couldn't actually measure any performance increase while testing (.3%
I consider noise), but seems like the right thing to do.

Signed-off-by: Brian Haley 
Signed-off-by: David S. Miller

[NET]: Replace CHECKSUM_HW by CHECKSUM_PARTIAL/CHECKSUM_COMPLETE

2006-09-22T21:53:53+00:00

Replace CHECKSUM_HW by CHECKSUM_PARTIAL (for outgoing packets, whose
checksum still needs to be completed) and CHECKSUM_COMPLETE (for
incoming packets, device supplied full checksum).

Patch originally from Herbert Xu, updated by myself for 2.6.18-rc3.

Signed-off-by: Patrick McHardy 
Signed-off-by: David S. Miller

[NET]: Fix more per-cpu typos

2006-08-02T22:02:31+00:00

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Andrew Morton 
Signed-off-by: David S. Miller

[TCP]: Process linger2 timeout consistently.

2006-08-02T20:38:24+00:00

Based upon guidance from Alexey Kuznetsov.

When linger2 is active, we check to see if the fin_wait2
timeout is longer than the timewait.  If it is, we schedule
the keepalive timer for the difference between the timewait
timeout and the fin_wait2 timeout.

When this orphan socket is seen by tcp_keepalive_timer()
it will try to transform this fin_wait2 socket into a
fin_wait2 mini-socket, again if linger2 is active.

Not all paths were setting this initial keepalive timer correctly.
The tcp input path was doing it correctly, but tcp_close() wasn't,
potentially making the socket linger longer than it really needs to.

Signed-off-by: David S. Miller

[NET]: Verify gso_type too in gso_segment

2006-07-04T02:38:35+00:00

We don't want nasty Xen guests to pass a TCPv6 packet in with gso_type set
to TCPv4 or even UDP (or a packet that's both TCP and UDP).

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

2006-06-30T22:40:17+00:00

* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [IPV6]: Added GSO support for TCPv6
  [NET]: Generalise TSO-specific bits from skb_setup_caps
  [IPV6]: Added GSO support for TCPv6
  [IPV6]: Remove redundant length check on input
  [NETFILTER]: SCTP conntrack: fix crash triggered by packet without chunks
  [TG3]: Update version and reldate
  [TG3]: Add TSO workaround using GSO
  [TG3]: Turn on hw fix for ASF problems
  [TG3]: Add rx BD workaround
  [TG3]: Add tg3_netif_stop() in vlan functions
  [TCP]: Reset gso_segs if packet is dodgy