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