freebsd-nq/sys/dev/etherswitch/ip17x/ip17x_vlans.c

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/*-
* Copyright (c) 2013 Luiz Otavio O Souza.
* Copyright (c) 2011-2012 Stefan Bethke.
* Copyright (c) 2012 Adrian Chadd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/errno.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/systm.h>
#include <sys/socket.h>
#include <net/if.h>
#include <dev/mii/mii.h>
#include <dev/etherswitch/etherswitch.h>
#include <dev/etherswitch/ip17x/ip17x_phy.h>
#include <dev/etherswitch/ip17x/ip17x_reg.h>
#include <dev/etherswitch/ip17x/ip17x_var.h>
#include <dev/etherswitch/ip17x/ip17x_vlans.h>
#include <dev/etherswitch/ip17x/ip175c.h>
#include "mdio_if.h"
#include "miibus_if.h"
#include "etherswitch_if.h"
/*
* Reset vlans to default state.
*/
int
ip17x_reset_vlans(struct ip17x_softc *sc, uint32_t vlan_mode)
{
struct ip17x_vlan *v;
int i, j, phy;
/* Do not add or strip vlan tags on any port. */
sc->addtag = 0;
sc->striptag = 0;
/* Reset all vlan data. */
memset(sc->vlan, 0, sizeof(sc->vlan));
memset(sc->pvid, 0, sizeof(uint32_t) * sc->numports);
if (vlan_mode == ETHERSWITCH_VLAN_PORT) {
/* Initialize port based vlans. */
for (i = 0, phy = 0; phy < MII_NPHY; phy++) {
if (((1 << phy) & sc->phymask) == 0)
continue;
v = &sc->vlan[i];
v->vlanid = i++ | ETHERSWITCH_VID_VALID;
v->ports = (1 << sc->cpuport);
for (j = 0; j < MII_NPHY; j++) {
if (((1 << j) & sc->phymask) == 0)
continue;
v->ports |= (1 << j);
}
}
} else if (vlan_mode == ETHERSWITCH_VLAN_DOT1Q) {
/*
* Setup vlan 1 as PVID for all switch ports. Add all ports as
* members of vlan 1.
*/
v = &sc->vlan[0];
v->vlanid = 1 | ETHERSWITCH_VID_VALID;
/* Set PVID to 1 for everyone. */
for (i = 0; i < sc->numports; i++)
sc->pvid[i] = 1;
for (i = 0; i < MII_NPHY; i++) {
if ((sc->phymask & (1 << i)) == 0)
continue;
v->ports |= (1 << i);
}
}
return (0);
}
int
ip17x_getvgroup(device_t dev, etherswitch_vlangroup_t *vg)
{
struct ip17x_softc *sc;
uint32_t port;
int i;
sc = device_get_softc(dev);
/* Vlan ID. */
vg->es_vid = sc->vlan[vg->es_vlangroup].vlanid;
/* Member Ports. */
vg->es_member_ports = 0;
for (i = 0; i < MII_NPHY; i++) {
if ((sc->phymask & (1 << i)) == 0)
continue;
if ((sc->vlan[vg->es_vlangroup].ports & (1 << i)) == 0)
continue;
port = sc->phyport[i];
vg->es_member_ports |= (1 << port);
}
/* Not supported. */
vg->es_untagged_ports = vg->es_member_ports;
vg->es_fid = 0;
return (0);
}
int
ip17x_setvgroup(device_t dev, etherswitch_vlangroup_t *vg)
{
struct ip17x_softc *sc;
uint32_t phy;
int i;
sc = device_get_softc(dev);
/* Check VLAN mode. */
if (sc->vlan_mode == 0)
return (EINVAL);
/* IP175C don't support VLAN IDs > 15. */
if (IP17X_IS_SWITCH(sc, IP175C) &&
(vg->es_vid & ETHERSWITCH_VID_MASK) > IP175C_LAST_VLAN)
return (EINVAL);
/* Vlan ID. */
if (sc->vlan_mode == ETHERSWITCH_VLAN_DOT1Q) {
for (i = 0; i < sc->info.es_nvlangroups; i++) {
/* Is this Vlan ID already set in another vlangroup ? */
if (i != vg->es_vlangroup &&
sc->vlan[i].vlanid & ETHERSWITCH_VID_VALID &&
(sc->vlan[i].vlanid & ETHERSWITCH_VID_MASK) ==
(vg->es_vid & ETHERSWITCH_VID_MASK))
return (EINVAL);
}
sc->vlan[vg->es_vlangroup].vlanid = vg->es_vid &
ETHERSWITCH_VID_MASK;
/* Setting the vlanid to zero disables the vlangroup. */
if (sc->vlan[vg->es_vlangroup].vlanid == 0) {
sc->vlan[vg->es_vlangroup].ports = 0;
return (sc->hal.ip17x_hw_setup(sc));
}
sc->vlan[vg->es_vlangroup].vlanid |= ETHERSWITCH_VID_VALID;
}
/* Member Ports. */
sc->vlan[vg->es_vlangroup].ports = 0;
for (i = 0; i < sc->numports; i++) {
if ((vg->es_member_ports & (1 << i)) == 0)
continue;
phy = sc->portphy[i];
sc->vlan[vg->es_vlangroup].ports |= (1 << phy);
}
return (sc->hal.ip17x_hw_setup(sc));
}