Date: Fri, 17 Sep 2010 22:05:27 +0000 (UTC) From: Andre Oppermann <andre@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/netinet tcp_output.c Message-ID: <201009172205.o8HM5mAt074497@repoman.freebsd.org>
next in thread | raw e-mail | index | archive | help
andre 2010-09-17 22:05:27 UTC
FreeBSD src repository
Modified files:
sys/netinet tcp_output.c
Log:
SVN rev 212803 on 2010-09-17 22:05:27Z by andre
Rearrange the TSO code to make it more readable and to clearly
separate the decision logic, of whether we can do TSO, and the
calculation of the burst length into two distinct parts.
Change the way the TSO burst length calculation is done. While
TSO could do bursts of 65535 bytes that can't be represented in
ip_len together with the IP and TCP header. Account for that and
use IP_MAXPACKET instead of TCP_MAXWIN as base constant (both
have the same value of 64K). When more data is available prevent
less than MSS sized segments from being sent during the current
TSO burst.
Add two more KASSERTs to ensure the integrity of the packets.
Tested by: Ben Wilber <ben-at-desync com>
MFC after: 10 days
Revision Changes Path
1.172 +49 -33 src/sys/netinet/tcp_output.c
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201009172205.o8HM5mAt074497>