[newlib-cygwin] This brings into sync FreeBSD with the netflix

[newlib-cygwin] This brings into sync FreeBSD with the netflix

[Sebastian Huber]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=a00ca7bd549ec74dab27d401e29b52cbcffe23fa

commit a00ca7bd549ec74dab27d401e29b52cbcffe23fa
Author: Randall Stewart <rrs@FreeBSD.org>
Date:   Thu May 6 11:22:26 2021 -0400

    This brings into sync FreeBSD with the netflix
    
    versions of rack and bbr. This fixes several breakages (panics) since the
    tcp_lro code was committed that have been reported. Quite a few new features
    are now in rack (prefecting of DGP -- Dynamic Goodput Pacing among the
    largest). There is also support for ack-war prevention. Documents comming soon
    on rack..
    
    Sponsored by:           Netflix
    Reviewed by:            rscheff, mtuexen
    Differential Revision:  https://reviews.freebsd.org/D30036

Diff:
---
 newlib/libc/sys/rtems/include/netinet/tcp.h | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/newlib/libc/sys/rtems/include/netinet/tcp.h b/newlib/libc/sys/rtems/include/netinet/tcp.h
index d2bf1f843..50f0811a6 100644
--- a/newlib/libc/sys/rtems/include/netinet/tcp.h
+++ b/newlib/libc/sys/rtems/include/netinet/tcp.h
@@ -181,13 +181,24 @@ struct tcphdr {
 #define	TCP_TXTLS_MODE	40	/* Transmit TLS mode */
 #define	TCP_RXTLS_ENABLE 41	/* TLS framing and encryption for receive */
 #define	TCP_RXTLS_MODE	42	/* Receive TLS mode */
+#define	TCP_IWND_NB	43	/* Override initial window (units: bytes) */
+#define	TCP_IWND_NSEG	44	/* Override initial window (units: MSS segs) */
+#define	TCP_LOGID_CNT	46	/* get number of connections with the same ID */
+#define	TCP_LOG_TAG	47	/* configure tag for grouping logs */
+#define	TCP_USER_LOG	48	/* userspace log event */
 #define	TCP_CONGESTION	64	/* get/set congestion control algorithm */
 #define	TCP_CCALGOOPT	65	/* get/set cc algorithm specific options */
+#define	TCP_MAXUNACKTIME 68	/* maximum time without making progress (sec) */
+#define	TCP_MAXPEAKRATE 69	/* maximum peak rate allowed (kbps) */
+#define TCP_IDLE_REDUCE 70	/* Reduce cwnd on idle input */
 #define TCP_REMOTE_UDP_ENCAPS_PORT 71	/* Enable TCP over UDP tunneling via the specified port */
 #define TCP_DELACK  	72	/* socket option for delayed ack */
 #define TCP_FIN_IS_RST 73	/* A fin from the peer is treated has a RST */
 #define TCP_LOG_LIMIT  74	/* Limit to number of records in tcp-log */
 #define TCP_SHARED_CWND_ALLOWED 75 	/* Use of a shared cwnd is allowed */
+#define TCP_PROC_ACCOUNTING 76	/* Do accounting on tcp cpu usage and counts */
+#define TCP_USE_CMP_ACKS 77 	/* The transport can handle the Compressed mbuf acks */
+#define	TCP_PERF_INFO	78	/* retrieve accounting counters */
 #define	TCP_KEEPINIT	128	/* N, time to establish connection */
 #define	TCP_KEEPIDLE	256	/* L,N,X start keeplives after this period */
 #define	TCP_KEEPINTVL	512	/* L,N interval between keepalives */
@@ -201,7 +212,7 @@ struct tcphdr {
 #define TCP_RACK_MBUF_QUEUE   1050 /* Do we allow mbuf queuing if supported */
 #define TCP_RACK_PROP	      1051 /* RACK proportional rate reduction (bool) */
 #define TCP_RACK_TLP_REDUCE   1052 /* RACK TLP cwnd reduction (bool) */
-#define TCP_RACK_PACE_REDUCE  1053 /* RACK Pacing reduction factor (divisor) */
+#define TCP_RACK_PACE_REDUCE  1053 /* RACK Pacingv reduction factor (divisor) */
 #define TCP_RACK_PACE_MAX_SEG 1054 /* Max TSO size we will send  */
 #define TCP_RACK_PACE_ALWAYS  1055 /* Use the always pace method */
 #define TCP_RACK_PROP_RATE    1056 /* The proportional reduction rate */
@@ -284,6 +295,16 @@ struct tcphdr {
 #define TCP_RACK_PACE_TO_FILL 1127 /* If we are not in recovery, always pace to fill the cwnd in 1 RTT */
 #define TCP_SHARED_CWND_TIME_LIMIT 1128 /* we should limit to low time values the scwnd life */
 #define TCP_RACK_PROFILE 1129	/* Select a profile that sets multiple options */
+#define TCP_HDWR_RATE_CAP 1130 /* Allow hardware rates to cap pacing rate */
+#define TCP_PACING_RATE_CAP 1131 /* Highest rate allowed in pacing in bytes per second (uint64_t) */
+#define TCP_HDWR_UP_ONLY 1132	/* Allow the pacing rate to climb but not descend (with the exception of fill-cw */
+#define TCP_RACK_ABC_VAL 1133	/* Set a local ABC value different then the system default */
+#define TCP_REC_ABC_VAL 1134	/* Do we use the ABC value for recovery or the override one from sysctl  */
+#define TCP_RACK_MEASURE_CNT 1135 /* How many measurements are required in GP pacing */
+#define TCP_DEFER_OPTIONS 1136 /* Defer options until the proper number of measurements occur, does not defer TCP_RACK_MEASURE_CNT */
+#define TCP_FAST_RSM_HACK 1137 /* Do we do the broken thing where we don't twiddle the TLP bits properly in fast_rsm_output? */
+#define TCP_RACK_PACING_BETA 1138	/* Changing the beta for pacing */
+#define TCP_RACK_PACING_BETA_ECN 1139	/* Changing the beta for ecn with pacing */
 
 /* Start of reserved space for third-party user-settable options. */
 #define	TCP_VENDOR	SO_VENDOR
@@ -295,6 +316,7 @@ struct tcphdr {
 #define	TCPI_OPT_WSCALE		0x04
 #define	TCPI_OPT_ECN		0x08
 #define	TCPI_OPT_TOE		0x10
+#define	TCPI_OPT_TFO		0x20
 
 /* Maximum length of log ID. */
 #define TCP_LOG_ID_LEN	64