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 83 etherswitch_identify(driver_t *driver, device_t parent) 84 { 85 if (device_find_child(parent, "etherswitch", -1) == NULL) 86 BUS_ADD_CHILD(parent, 0, "etherswitch", DEVICE_UNIT_ANY); 87 } 88 89 static int 90 etherswitch_probe(device_t dev) 91 { 92 device_set_desc(dev, "Switch controller"); 93 94 return (0); 95 } 96 97 static int 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 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 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