1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2011-2012 Stefan Bethke.
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 * $FreeBSD$
29 */
30
31 #include <sys/param.h>
32 #include <sys/bus.h>
33 #include <sys/conf.h>
34 #include <sys/fcntl.h>
35 #include <sys/kernel.h>
36 #include <sys/malloc.h>
37 #include <sys/module.h>
38 #include <sys/socket.h>
39 #include <sys/sx.h>
40 #include <sys/systm.h>
41 #include <sys/uio.h>
42
43 #include <net/if.h>
44
45 #include <dev/etherswitch/etherswitch.h>
46
47 #include "etherswitch_if.h"
48
49 struct etherswitch_softc {
50 device_t sc_dev;
51 struct cdev *sc_devnode;
52 };
53
54 static int etherswitch_probe(device_t);
55 static int etherswitch_attach(device_t);
56 static int etherswitch_detach(device_t);
57 static void etherswitch_identify(driver_t *driver, device_t parent);
58
59 devclass_t etherswitch_devclass;
60
61 static device_method_t etherswitch_methods[] = {
62 /* device interface */
63 DEVMETHOD(device_identify, etherswitch_identify),
64 DEVMETHOD(device_probe, etherswitch_probe),
65 DEVMETHOD(device_attach, etherswitch_attach),
66 DEVMETHOD(device_detach, etherswitch_detach),
67
68 DEVMETHOD_END
69 };
70
71 driver_t etherswitch_driver = {
72 "etherswitch",
73 etherswitch_methods,
74 sizeof(struct etherswitch_softc),
75 };
76
77 static d_ioctl_t etherswitchioctl;
78
79 static struct cdevsw etherswitch_cdevsw = {
80 .d_version = D_VERSION,
81 .d_flags = D_TRACKCLOSE,
82 .d_ioctl = etherswitchioctl,
83 .d_name = "etherswitch",
84 };
85
86 static void
etherswitch_identify(driver_t * driver,device_t parent)87 etherswitch_identify(driver_t *driver, device_t parent)
88 {
89 if (device_find_child(parent, "etherswitch", -1) == NULL)
90 BUS_ADD_CHILD(parent, 0, "etherswitch", -1);
91 }
92
93 static int
etherswitch_probe(device_t dev)94 etherswitch_probe(device_t dev)
95 {
96 device_set_desc(dev, "Switch controller");
97
98 return (0);
99 }
100
101 static int
etherswitch_attach(device_t dev)102 etherswitch_attach(device_t dev)
103 {
104 int err;
105 struct etherswitch_softc *sc;
106 struct make_dev_args devargs;
107
108 sc = device_get_softc(dev);
109 sc->sc_dev = dev;
110 make_dev_args_init(&devargs);
111 devargs.mda_devsw = ðerswitch_cdevsw;
112 devargs.mda_uid = UID_ROOT;
113 devargs.mda_gid = GID_WHEEL;
114 devargs.mda_mode = 0600;
115 devargs.mda_si_drv1 = sc;
116 err = make_dev_s(&devargs, &sc->sc_devnode, "etherswitch%d",
117 device_get_unit(dev));
118 if (err != 0) {
119 device_printf(dev, "failed to create character device\n");
120 return (ENXIO);
121 }
122
123 return (0);
124 }
125
126 static int
etherswitch_detach(device_t dev)127 etherswitch_detach(device_t dev)
128 {
129 struct etherswitch_softc *sc = (struct etherswitch_softc *)device_get_softc(dev);
130
131 if (sc->sc_devnode)
132 destroy_dev(sc->sc_devnode);
133
134 return (0);
135 }
136
137 static int
etherswitchioctl(struct cdev * cdev,u_long cmd,caddr_t data,int flags,struct thread * td)138 etherswitchioctl(struct cdev *cdev, u_long cmd, caddr_t data, int flags, struct thread *td)
139 {
140 struct etherswitch_softc *sc = cdev->si_drv1;
141 device_t dev = sc->sc_dev;
142 device_t etherswitch = device_get_parent(dev);
143 etherswitch_conf_t conf;
144 etherswitch_info_t *info;
145 etherswitch_reg_t *reg;
146 etherswitch_phyreg_t *phyreg;
147 etherswitch_portid_t *portid;
148 int error = 0;
149
150 switch (cmd) {
151 case IOETHERSWITCHGETINFO:
152 info = ETHERSWITCH_GETINFO(etherswitch);
153 bcopy(info, data, sizeof(etherswitch_info_t));
154 break;
155
156 case IOETHERSWITCHGETREG:
157 reg = (etherswitch_reg_t *)data;
158 ETHERSWITCH_LOCK(etherswitch);
159 reg->val = ETHERSWITCH_READREG(etherswitch, reg->reg);
160 ETHERSWITCH_UNLOCK(etherswitch);
161 break;
162
163 case IOETHERSWITCHSETREG:
164 reg = (etherswitch_reg_t *)data;
165 ETHERSWITCH_LOCK(etherswitch);
166 error = ETHERSWITCH_WRITEREG(etherswitch, reg->reg, reg->val);
167 ETHERSWITCH_UNLOCK(etherswitch);
168 break;
169
170 case IOETHERSWITCHGETPORT:
171 error = ETHERSWITCH_GETPORT(etherswitch, (etherswitch_port_t *)data);
172 break;
173
174 case IOETHERSWITCHSETPORT:
175 error = ETHERSWITCH_SETPORT(etherswitch, (etherswitch_port_t *)data);
176 break;
177
178 case IOETHERSWITCHGETVLANGROUP:
179 error = ETHERSWITCH_GETVGROUP(etherswitch, (etherswitch_vlangroup_t *)data);
180 break;
181
182 case IOETHERSWITCHSETVLANGROUP:
183 error = ETHERSWITCH_SETVGROUP(etherswitch, (etherswitch_vlangroup_t *)data);
184 break;
185
186 case IOETHERSWITCHGETPHYREG:
187 phyreg = (etherswitch_phyreg_t *)data;
188 phyreg->val = ETHERSWITCH_READPHYREG(etherswitch, phyreg->phy, phyreg->reg);
189 break;
190
191 case IOETHERSWITCHSETPHYREG:
192 phyreg = (etherswitch_phyreg_t *)data;
193 error = ETHERSWITCH_WRITEPHYREG(etherswitch, phyreg->phy, phyreg->reg, phyreg->val);
194 break;
195
196 case IOETHERSWITCHGETCONF:
197 bzero(&conf, sizeof(etherswitch_conf_t));
198 error = ETHERSWITCH_GETCONF(etherswitch, &conf);
199 bcopy(&conf, data, sizeof(etherswitch_conf_t));
200 break;
201
202 case IOETHERSWITCHSETCONF:
203 error = ETHERSWITCH_SETCONF(etherswitch, (etherswitch_conf_t *)data);
204 break;
205
206 case IOETHERSWITCHFLUSHALL:
207 error = ETHERSWITCH_FLUSH_ALL(etherswitch);
208 break;
209
210 case IOETHERSWITCHFLUSHPORT:
211 portid = (etherswitch_portid_t *)data;
212 error = ETHERSWITCH_FLUSH_PORT(etherswitch, portid->es_port);
213 break;
214
215 case IOETHERSWITCHGETTABLE:
216 error = ETHERSWITCH_FETCH_TABLE(etherswitch, (void *) data);
217 break;
218
219 case IOETHERSWITCHGETTABLEENTRY:
220 error = ETHERSWITCH_FETCH_TABLE_ENTRY(etherswitch, (void *) data);
221 break;
222
223 default:
224 error = ENOTTY;
225 }
226
227 return (error);
228 }
229
230 MODULE_VERSION(etherswitch, 1);
231