Date: Tue, 5 Jul 2011 18:43:54 +0000 (UTC) From: Colin Percival <cperciva@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/netinet tcp_lro.c Message-ID: <201107051844.p65Ii2nf089032@repoman.freebsd.org>
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cperciva 2011-07-05 18:43:54 UTC
FreeBSD src repository
Modified files:
sys/netinet tcp_lro.c
Log:
SVN rev 223797 on 2011-07-05 18:43:54Z by cperciva
Don't allow lro->len to exceed 65535, as this will result in overflow
when len is inserted back into the synthetic IP packet and cause a
multiple of 2^16 bytes of TCP "packet loss".
This improves Linux->FreeBSD netperf bandwidth by a factor of 300 in
testing on Amazon EC2.
Reviewed by: jfv
MFC after: 2 weeks
Revision Changes Path
1.5 +8 -0 src/sys/netinet/tcp_lro.c
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