10052 "dladm show-ether" should pick one kstat snapshot and stick with it
Reviewed by: Rob Johnston <rob.johnston@joyent.com>
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Gergo Doma <domag02@gmail.com>
Reviewed by: Andy Fiddaman <andy@omniosce.org>

*** 20,36 ****
--- 20,41 ----
   */
  /*
   * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
   */
  
+ /*
+  * Copyright 2019 OmniOS Community Edition (OmniOSce) Association
+  */
+ 
  #ifndef _LIBDLADM_H
  #define _LIBDLADM_H
  
  #include <sys/dls_mgmt.h>
  #include <sys/dld.h>
  #include <sys/dlpi.h>
  #include <libnvpair.h>
+ #include <kstat.h>
  
  /*
   * This file includes structures, macros and common routines shared by all
   * data-link administration, and routines which do not directly administrate
   * links. For example, dladm_status2str().
*** 206,215 ****
--- 211,226 ----
  /*
   * retrieve the dld file descriptor from handle, only libdladm and
   * dlmgmtd are given access to the door file descriptor.
   */
  extern int      dladm_dld_fd(dladm_handle_t);
+ /*
+  * Retrieve kstat_ctl_t* from handle.The libkstat handle is opened
+  * when the first caller needs it.This allows the library to share
+  * the kstat handle.
+  */
+ extern kstat_ctl_t      *dladm_dld_kcp(dladm_handle_t);
  
  typedef struct dladm_arg_info {
          const char      *ai_name;
          char            *ai_val[DLADM_MAX_ARG_VALS];
          uint_t          ai_count;