kernel.git/include/linux/tcp.h, branch linux-2.6.21.y

[TCP]: Seperate DSACK from SACK fast path

2007-02-08T20:38:49Z

Move DSACK code outside the SACK fast-path checking code. If the DSACK determined that the information was too old we stayed with a partial cache copied. Most likely this matters very little since the next packet will not be DSACK and we will find it in the cache. but it's still not good form and there is little reason to couple the two checks. Since the SACK receive cache doesn't need the data to be in host order we also remove the ntohl in the checking loop. Signed-off-by: Baruch Even Signed-off-by: David S. Miller

[TCP]: Renove the __ prefix on the struct tcp_sock members

2006-12-03T05:30:54Z

As this struct is not userland visible at all. Signed-off-by: Arnaldo Carvalho de Melo

[TCP]: Change tcp_header_len member in tcp_sock to u16

2006-12-03T05:30:53Z

With this we eliminate the last hole in struct tcp_sock. End result: [acme@newtoy net-2.6.20]$ codiff -sV /tmp/tcp.o.before net/ipv4/tcp.o /pub/scm/linux/kernel/git/acme/net-2.6.20/net/ipv4/tcp.c: struct tcp_sock | -4 tcp_header_len; from: int /* 1000(0) 4(0) */ to: u16 /* 1000(0) 2(0) */ 1 struct changed [acme@newtoy net-2.6.20]$ Now sizeof(tcp_sock) is just... [acme@newtoy net-2.6.20]$ pahole --sizes ../OUTPUT/qemu/net-2.6.20/net/ipv4/tcp.o | grep -w tcp_sock struct tcp_sock: 1500 0 1500 bytes ;-) Signed-off-by: Arnaldo Carvalho de Melo

[NET]: Annotate checksums in on-the-wire packets.

2006-12-03T05:23:26Z

Signed-off-by: Al Viro Signed-off-by: David S. Miller

[TCP]: MD5 Signature Option (RFC2385) support.

2006-12-03T05:22:39Z

Based on implementation by Rick Payne. Signed-off-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller

[TCP]: Bound TSO defer time

2006-10-19T03:36:48Z

This patch limits the amount of time you will defer sending a TSO segment to less than two clock ticks, or the time between two acks, whichever is longer. On slow links, deferring causes significant bursts. See attached plots, which show RTT through a 1 Mbps link with a 100 ms RTT and ~100 ms queue for (a) non-TSO, (b) currnet TSO, and (c) patched TSO. This burstiness causes significant jitter, tends to overflow queues early (bad for short queues), and makes delay-based congestion control more difficult. Deferring by a couple clock ticks I believe will have a relatively small impact on performance. Signed-off-by: John Heffner Signed-off-by: David S. Miller

[TCP]: struct tcp_sock .pred_flags is net-endian

2006-09-29T01:02:05Z

Signed-off-by: Al Viro Signed-off-by: David S. Miller

[TCP]: struct tcp_sack_block annotations

2006-09-29T01:02:04Z

Some of the instances of tcp_sack_block are host-endian, some - net-endian. Define struct tcp_sack_block_wire identical to struct tcp_sack_block with u32 replaced with __be32; annotate uses of tcp_sack_block replacing net-endian ones with tcp_sack_block_wire. Change is obviously safe since for cc(1) __be32 is typedefed to u32. Signed-off-by: Al Viro Signed-off-by: David S. Miller

[IPV4]: TCP headers annotated

2006-09-29T01:02:03Z

Signed-off-by: Al Viro Signed-off-by: David S. Miller

[TCP]: Move inclusion of to correct place in

2006-06-23T09:07:40Z

The new header shouldn't be included from the !__KERNEL__ portion of tcp.h Signed-off-by: David Woodhouse Signed-off-by: David S. Miller