DLPX-37540 TCP per-connection kernel statistics DLPX-37544 connstat command to display per-connection TCP statistics

*** 18,27 ****
--- 18,28 ----
   *
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+  * Copyright (c) 2015 by Delphix. All rights reserved.
   */
  
  #include <sys/types.h>
  #include <sys/stream.h>
  #include <sys/strsun.h>
*** 643,661 ****
          peer_tcp->tcp_rnxt += recv_size;
          peer_tcp->tcp_last_recv_len = recv_size;
          peer_tcp->tcp_rack = peer_tcp->tcp_rnxt;
  
          TCPS_BUMP_MIB(tcps, tcpOutDataSegs);
          TCPS_UPDATE_MIB(tcps, tcpOutDataBytes, send_size);
  
          TCPS_BUMP_MIB(tcps, tcpHCInSegs);
          TCPS_BUMP_MIB(tcps, tcpInDataInorderSegs);
          TCPS_UPDATE_MIB(tcps, tcpInDataInorderBytes, send_size);
  
-         BUMP_LOCAL(tcp->tcp_obsegs);
-         BUMP_LOCAL(peer_tcp->tcp_ibsegs);
- 
          DTRACE_TCP5(send, void, NULL, ip_xmit_attr_t *, connp->conn_ixa,
              __dtrace_tcp_void_ip_t *, NULL, tcp_t *, tcp,
              __dtrace_tcp_tcph_t *, NULL);
          DTRACE_TCP5(receive, void, NULL, ip_xmit_attr_t *,
              peer_connp->conn_ixa, __dtrace_tcp_void_ip_t *, NULL,
--- 644,664 ----
          peer_tcp->tcp_rnxt += recv_size;
          peer_tcp->tcp_last_recv_len = recv_size;
          peer_tcp->tcp_rack = peer_tcp->tcp_rnxt;
  
          TCPS_BUMP_MIB(tcps, tcpOutDataSegs);
+         TCPS_BUMP_MIB(tcps, tcpHCOutSegs);
          TCPS_UPDATE_MIB(tcps, tcpOutDataBytes, send_size);
+         tcp->tcp_cs.tcp_out_data_bytes += send_size;
+         tcp->tcp_cs.tcp_out_data_segs++;
  
          TCPS_BUMP_MIB(tcps, tcpHCInSegs);
          TCPS_BUMP_MIB(tcps, tcpInDataInorderSegs);
          TCPS_UPDATE_MIB(tcps, tcpInDataInorderBytes, send_size);
+         peer_tcp->tcp_cs.tcp_in_data_inorder_bytes += send_size;
+         peer_tcp->tcp_cs.tcp_in_data_inorder_segs++;
  
          DTRACE_TCP5(send, void, NULL, ip_xmit_attr_t *, connp->conn_ixa,
              __dtrace_tcp_void_ip_t *, NULL, tcp_t *, tcp,
              __dtrace_tcp_tcph_t *, NULL);
          DTRACE_TCP5(receive, void, NULL, ip_xmit_attr_t *,
              peer_connp->conn_ixa, __dtrace_tcp_void_ip_t *, NULL,