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 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 94 etherswitch_probe(device_t dev) 95 { 96 device_set_desc(dev, "Switch controller"); 97 98 return (0); 99 } 100 101 static int 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 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 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