5295 remove maxburst logic from TCP's send algorithm Reviewed by: Dan McDonald <danmcd@omniti.com>

@@ -21,10 +21,11 @@
 
 /*
  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2011 Nexenta Systems, Inc. All rights reserved.
  * Copyright 2011 Joyent, Inc.  All rights reserved.
+ * Copyright (c) 2014 by Delphix. All rights reserved.
  */
 
 #include <sys/types.h>
 #include <sys/strlog.h>
 #include <sys/strsun.h>

@@ -1064,15 +1065,13 @@
             B_TRUE);
 
         /*
          * When slow start after retransmission begins, start with
          * this seq no.  tcp_rexmit_max marks the end of special slow
-         * start phase.  tcp_snd_burst controls how many segments
-         * can be sent because of an ack.
+         * start phase.
          */
         tcp->tcp_rexmit_nxt = tcp->tcp_suna;
-        tcp->tcp_snd_burst = TCP_CWND_SS;
         if ((tcp->tcp_valid_bits & TCP_FSS_VALID) &&
             (tcp->tcp_unsent == 0)) {
                 tcp->tcp_rexmit_max = tcp->tcp_fss;
         } else {
                 tcp->tcp_rexmit_max = tcp->tcp_snxt;