Date: Mon, 16 Feb 2009 16:13:01 GMT From: Andre Oppermann <andre@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 157797 for review Message-ID: <200902161613.n1GGD1SG055304@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=157797 Change 157797 by andre@andre_flirtbox on 2009/02/16 16:12:36 Refine the segment size calculation in the TSO case. Affected files ... .. //depot/projects/tcp_new/netinet/tcp_output.c#3 edit Differences ... ==== //depot/projects/tcp_new/netinet/tcp_output.c#3 (text+ko) ==== @@ -722,9 +722,11 @@ if (len + optlen + ipoptlen > tp->t_maxopd) { flags &= ~TH_FIN; if (tso) { - if (len > TCP_MAXWIN - hdrlen - optlen) { - len = TCP_MAXWIN - hdrlen - optlen; - len = len - (len % (tp->t_maxopd - optlen)); + int hdrs = max_linkhdr + hdrlen + optlen + ipoptlen; + + if (len > TCP_MAXWIN - hdrs) { + len = TCP_MAXWIN - hdrs; + len -= len % (tp->t_maxopd - optlen); sendalot = 1; } else if (tp->t_flags & TF_NEEDFIN) sendalot = 1;
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