ip17x_vlans.c revision 302408 
1/*-
2 * Copyright (c) 2013 Luiz Otavio O Souza.
3 * Copyright (c) 2011-2012 Stefan Bethke.
4 * Copyright (c) 2012 Adrian Chadd.
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 * $FreeBSD: stable/11/sys/dev/etherswitch/ip17x/ip17x_vlans.c 262571 2014-02-27 21:01:10Z brueffer $
29 */
30
31#include <sys/param.h>
32#include <sys/bus.h>
33#include <sys/errno.h>
34#include <sys/kernel.h>
35#include <sys/lock.h>
36#include <sys/mutex.h>
37#include <sys/systm.h>
38#include <sys/socket.h>
39
40#include <net/if.h>
41
42#include <dev/mii/mii.h>
43
44#include <dev/etherswitch/etherswitch.h>
45#include <dev/etherswitch/ip17x/ip17x_phy.h>
46#include <dev/etherswitch/ip17x/ip17x_reg.h>
47#include <dev/etherswitch/ip17x/ip17x_var.h>
48#include <dev/etherswitch/ip17x/ip17x_vlans.h>
49#include <dev/etherswitch/ip17x/ip175c.h>
50
51#include "mdio_if.h"
52#include "miibus_if.h"
53#include "etherswitch_if.h"
54
55/*
56 * Reset vlans to default state.
57 */
58int
59ip17x_reset_vlans(struct ip17x_softc *sc, uint32_t vlan_mode)
60{
61	struct ip17x_vlan *v;
62	int i, j, phy;
63
64	/* Do not add or strip vlan tags on any port. */
65	sc->addtag = 0;
66	sc->striptag = 0;
67
68	/* Reset all vlan data. */
69	memset(sc->vlan, 0, sizeof(sc->vlan));
70	memset(sc->pvid, 0, sizeof(uint32_t) * sc->numports);
71
72	if (vlan_mode == ETHERSWITCH_VLAN_PORT) {
73
74		/* Initialize port based vlans. */
75		for (i = 0, phy = 0; phy < MII_NPHY; phy++) {
76			if (((1 << phy) & sc->phymask) == 0)
77				continue;
78			v = &sc->vlan[i];
79			v->vlanid = i++ | ETHERSWITCH_VID_VALID;
80			v->ports = (1 << sc->cpuport);
81			for (j = 0; j < MII_NPHY; j++) {
82				if (((1 << j) & sc->phymask) == 0)
83					continue;
84				v->ports |= (1 << j);
85			}
86		}
87
88	} else if (vlan_mode == ETHERSWITCH_VLAN_DOT1Q) {
89
90		/*
91		 * Setup vlan 1 as PVID for all switch ports.  Add all ports as
92		 * members of vlan 1.
93		 */
94		v = &sc->vlan[0];
95		v->vlanid = 1 | ETHERSWITCH_VID_VALID;
96		/* Set PVID to 1 for everyone. */
97		for (i = 0; i < sc->numports; i++)
98			sc->pvid[i] = 1;
99		for (i = 0; i < MII_NPHY; i++) {
100			if ((sc->phymask & (1 << i)) == 0)
101				continue;
102			v->ports |= (1 << i);
103		}
104	}
105
106	return (0);
107}
108
109int
110ip17x_getvgroup(device_t dev, etherswitch_vlangroup_t *vg)
111{
112	struct ip17x_softc *sc;
113	uint32_t port;
114	int i;
115
116	sc = device_get_softc(dev);
117
118	/* Vlan ID. */
119	vg->es_vid = sc->vlan[vg->es_vlangroup].vlanid;
120
121	/* Member Ports. */
122	vg->es_member_ports = 0;
123	for (i = 0; i < MII_NPHY; i++) {
124		if ((sc->phymask & (1 << i)) == 0)
125			continue;
126		if ((sc->vlan[vg->es_vlangroup].ports & (1 << i)) == 0)
127			continue;
128		port = sc->phyport[i];
129		vg->es_member_ports |= (1 << port);
130	}
131
132	/* Not supported. */
133	vg->es_untagged_ports = vg->es_member_ports;
134	vg->es_fid = 0;
135
136	return (0);
137}
138
139int
140ip17x_setvgroup(device_t dev, etherswitch_vlangroup_t *vg)
141{
142	struct ip17x_softc *sc;
143	uint32_t phy;
144	int i;
145
146	sc = device_get_softc(dev);
147
148	/* Check VLAN mode. */
149	if (sc->vlan_mode == 0)
150		return (EINVAL);
151
152	/* IP175C don't support VLAN IDs > 15. */
153	if (IP17X_IS_SWITCH(sc, IP175C) &&
154	    (vg->es_vid & ETHERSWITCH_VID_MASK) > IP175C_LAST_VLAN)
155		return (EINVAL);
156
157	/* Vlan ID. */
158	if (sc->vlan_mode == ETHERSWITCH_VLAN_DOT1Q) {
159		for (i = 0; i < sc->info.es_nvlangroups; i++) {
160			/* Is this Vlan ID already set in another vlangroup ? */
161			if (i != vg->es_vlangroup &&
162			    sc->vlan[i].vlanid & ETHERSWITCH_VID_VALID &&
163			    (sc->vlan[i].vlanid & ETHERSWITCH_VID_MASK) ==
164			    (vg->es_vid & ETHERSWITCH_VID_MASK))
165				return (EINVAL);
166		}
167		sc->vlan[vg->es_vlangroup].vlanid = vg->es_vid &
168		    ETHERSWITCH_VID_MASK;
169		/* Setting the vlanid to zero disables the vlangroup. */
170		if (sc->vlan[vg->es_vlangroup].vlanid == 0) {
171			sc->vlan[vg->es_vlangroup].ports = 0;
172			return (sc->hal.ip17x_hw_setup(sc));
173		}
174		sc->vlan[vg->es_vlangroup].vlanid |= ETHERSWITCH_VID_VALID;
175	}
176
177	/* Member Ports. */
178	sc->vlan[vg->es_vlangroup].ports = 0;
179	for (i = 0; i < sc->numports; i++) {
180		if ((vg->es_member_ports & (1 << i)) == 0)
181			continue;
182		phy = sc->portphy[i];
183		sc->vlan[vg->es_vlangroup].ports |= (1 << phy);
184	}
185
186	return (sc->hal.ip17x_hw_setup(sc));
187}
188