sys/net/agr/ieee8023ad_lacp_timer.c

   1 /*      $NetBSD: ieee8023ad_lacp_timer.c,v 1.4 2005/12/11 12:24:54 christos Exp $       */
   2
   3 /*-
   4  * Copyright (c)2005 YAMAMOTO Takashi,
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #include <sys/cdefs.h>
  30 __KERNEL_RCSID(0, "$NetBSD: ieee8023ad_lacp_timer.c,v 1.4 2005/12/11 12:24:54 christos Exp $");
  31
  32 #include <sys/param.h>
  33 #include <sys/callout.h>
  34 #include <sys/systm.h>
  35
  36 #include <net/if.h>
  37 #include <net/if_ether.h>
  38
  39 #include <net/agr/ieee8023_slowprotocols.h>
  40 #include <net/agr/ieee8023_tlv.h>
  41 #include <net/agr/ieee8023ad_lacp.h>
  42 #include <net/agr/ieee8023ad_lacp_impl.h>
  43 #include <net/agr/ieee8023ad_lacp_sm.h>
  44
  45 typedef void (*lacp_timer_func_t)(struct lacp_port *);
  46
  47 static const lacp_timer_func_t lacp_timer_funcs[LACP_NTIMER] = {
  48         [LACP_TIMER_CURRENT_WHILE] = lacp_sm_rx_timer,
  49         [LACP_TIMER_PERIODIC] = lacp_sm_ptx_timer,
  50         [LACP_TIMER_WAIT_WHILE] = lacp_sm_mux_timer,
  51 };
  52
  53 void
  54 lacp_run_timers(struct lacp_port *lp)
  55 {
  56         int i;
  57
  58         for (i = 0; i < LACP_NTIMER; i++) {
  59                 KASSERT(lp->lp_timer[i] >= 0);
  60                 if (lp->lp_timer[i] == 0) {
  61                         continue;
  62                 } else if (--lp->lp_timer[i] <= 0) {
  63                         if (lacp_timer_funcs[i]) {
  64                                 (*lacp_timer_funcs[i])(lp);
  65                         }
  66                 }
  67         }
  68 }