From: Richard Scheffenegger <rsch...@freebsd.org> The fastpath in tcp_output tries to send out full segments, and avoid sending partial segments by comparing against the static t_maxseg variable. That value does not consider tcp options like timestamps, while the initial window calculation is using the correct dynamic tcp_maxseg() function.
Due to this interaction, the last, full size segment is considered too short and not sent out immediately. Reviewed by: tuexen MFC after: 2 weeks Sponsored by: NetApp, Inc. Differential Revision: https://reviews.freebsd.org/D26478 --- newlib/libc/sys/rtems/include/netinet/tcp.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/newlib/libc/sys/rtems/include/netinet/tcp.h b/newlib/libc/sys/rtems/include/netinet/tcp.h index 0a5226836..faf142959 100644 --- a/newlib/libc/sys/rtems/include/netinet/tcp.h +++ b/newlib/libc/sys/rtems/include/netinet/tcp.h @@ -80,6 +80,8 @@ struct tcphdr { u_short th_urp; /* urgent pointer */ }; +#define PADTCPOLEN(len) ((((len) / 4) + !!((len) % 4)) * 4) + #define TCPOPT_EOL 0 #define TCPOLEN_EOL 1 #define TCPOPT_PAD 0 /* padding after EOL */ -- 2.35.3 _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
