ip17x_vlans.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2013 Luiz Otavio O Souza.
    5  * Copyright (c) 2011-2012 Stefan Bethke.
    6  * Copyright (c) 2012 Adrian Chadd.
    7  * All rights reserved.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions and the following disclaimer.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   28  * SUCH DAMAGE.
   29  *
   30  * $FreeBSD$
   31  */
   32 
   33 #include <sys/param.h>
   34 #include <sys/bus.h>
   35 #include <sys/errno.h>
   36 #include <sys/kernel.h>
   37 #include <sys/lock.h>
   38 #include <sys/mutex.h>
   39 #include <sys/systm.h>
   40 #include <sys/socket.h>
   41 
   42 #include <net/if.h>
   43 
   44 #include <dev/mii/mii.h>
   45 
   46 #include <dev/etherswitch/etherswitch.h>
   47 #include <dev/etherswitch/ip17x/ip17x_phy.h>
   48 #include <dev/etherswitch/ip17x/ip17x_reg.h>
   49 #include <dev/etherswitch/ip17x/ip17x_var.h>
   50 #include <dev/etherswitch/ip17x/ip17x_vlans.h>
   51 #include <dev/etherswitch/ip17x/ip175c.h>
   52 
   53 #include "mdio_if.h"
   54 #include "miibus_if.h"
   55 #include "etherswitch_if.h"
   56 
   57 /*
   58  * Reset vlans to default state.
   59  */
   60 int
   61 ip17x_reset_vlans(struct ip17x_softc *sc, uint32_t vlan_mode)
   62 {
   63         struct ip17x_vlan *v;
   64         int i, j, phy;
   65 
   66         /* Do not add or strip vlan tags on any port. */
   67         sc->addtag = 0;
   68         sc->striptag = 0;
   69 
   70         /* Reset all vlan data. */
   71         memset(sc->vlan, 0, sizeof(sc->vlan));
   72         memset(sc->pvid, 0, sizeof(uint32_t) * sc->numports);
   73 
   74         if (vlan_mode == ETHERSWITCH_VLAN_PORT) {
   75 
   76                 /* Initialize port based vlans. */
   77                 for (i = 0, phy = 0; phy < MII_NPHY; phy++) {
   78                         if (((1 << phy) & sc->phymask) == 0)
   79                                 continue;
   80                         v = &sc->vlan[i];
   81                         v->vlanid = i++ | ETHERSWITCH_VID_VALID;
   82                         v->ports = (1 << sc->cpuport);
   83                         for (j = 0; j < MII_NPHY; j++) {
   84                                 if (((1 << j) & sc->phymask) == 0)
   85                                         continue;
   86                                 v->ports |= (1 << j);
   87                         }
   88                 }
   89 
   90         } else if (vlan_mode == ETHERSWITCH_VLAN_DOT1Q) {
   91 
   92                 /*
   93                  * Setup vlan 1 as PVID for all switch ports.  Add all ports as
   94                  * members of vlan 1.
   95                  */
   96                 v = &sc->vlan[0];
   97                 v->vlanid = 1 | ETHERSWITCH_VID_VALID;
   98                 /* Set PVID to 1 for everyone. */
   99                 for (i = 0; i < sc->numports; i++)
  100                         sc->pvid[i] = 1;
  101                 for (i = 0; i < MII_NPHY; i++) {
  102                         if ((sc->phymask & (1 << i)) == 0)
  103                                 continue;
  104                         v->ports |= (1 << i);
  105                 }
  106         }
  107 
  108         return (0);
  109 }
  110 
  111 int
  112 ip17x_getvgroup(device_t dev, etherswitch_vlangroup_t *vg)
  113 {
  114         struct ip17x_softc *sc;
  115         uint32_t port;
  116         int i;
  117 
  118         sc = device_get_softc(dev);
  119 
  120         /* Vlan ID. */
  121         vg->es_vid = sc->vlan[vg->es_vlangroup].vlanid;
  122 
  123         /* Member Ports. */
  124         vg->es_member_ports = 0;
  125         for (i = 0; i < MII_NPHY; i++) {
  126                 if ((sc->phymask & (1 << i)) == 0)
  127                         continue;
  128                 if ((sc->vlan[vg->es_vlangroup].ports & (1 << i)) == 0)
  129                         continue;
  130                 port = sc->phyport[i];
  131                 vg->es_member_ports |= (1 << port);
  132         }
  133 
  134         /* Not supported. */
  135         vg->es_untagged_ports = vg->es_member_ports;
  136         vg->es_fid = 0;
  137 
  138         return (0);
  139 }
  140 
  141 int
  142 ip17x_setvgroup(device_t dev, etherswitch_vlangroup_t *vg)
  143 {
  144         struct ip17x_softc *sc;
  145         uint32_t phy;
  146         int i;
  147 
  148         sc = device_get_softc(dev);
  149 
  150         /* Check VLAN mode. */
  151         if (sc->vlan_mode == 0)
  152                 return (EINVAL);
  153 
  154         /* IP175C don't support VLAN IDs > 15. */
  155         if (IP17X_IS_SWITCH(sc, IP175C) &&
  156             (vg->es_vid & ETHERSWITCH_VID_MASK) > IP175C_LAST_VLAN)
  157                 return (EINVAL);
  158 
  159         /* Vlan ID. */
  160         if (sc->vlan_mode == ETHERSWITCH_VLAN_DOT1Q) {
  161                 for (i = 0; i < sc->info.es_nvlangroups; i++) {
  162                         /* Is this Vlan ID already set in another vlangroup ? */
  163                         if (i != vg->es_vlangroup &&
  164                             sc->vlan[i].vlanid & ETHERSWITCH_VID_VALID &&
  165                             (sc->vlan[i].vlanid & ETHERSWITCH_VID_MASK) ==
  166                             (vg->es_vid & ETHERSWITCH_VID_MASK))
  167                                 return (EINVAL);
  168                 }
  169                 sc->vlan[vg->es_vlangroup].vlanid = vg->es_vid &
  170                     ETHERSWITCH_VID_MASK;
  171                 /* Setting the vlanid to zero disables the vlangroup. */
  172                 if (sc->vlan[vg->es_vlangroup].vlanid == 0) {
  173                         sc->vlan[vg->es_vlangroup].ports = 0;
  174                         return (sc->hal.ip17x_hw_setup(sc));
  175                 }
  176                 sc->vlan[vg->es_vlangroup].vlanid |= ETHERSWITCH_VID_VALID;
  177         }
  178 
  179         /* Member Ports. */
  180         sc->vlan[vg->es_vlangroup].ports = 0;
  181         for (i = 0; i < sc->numports; i++) {
  182                 if ((vg->es_member_ports & (1 << i)) == 0)
  183                         continue;
  184                 phy = sc->portphy[i];
  185                 sc->vlan[vg->es_vlangroup].ports |= (1 << phy);
  186         }
  187 
  188         return (sc->hal.ip17x_hw_setup(sc));
  189 }

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FreeBSD/Linux Kernel Cross Reference sys/dev/etherswitch/ip17x/ip17x_vlans.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/etherswitch/ip17x/ip17x_vlans.c