877d73ecb4
This stuff may be a bit fluid during this -HEAD cycle as various other switch features are added, but the current stuff is enough to drive initial development and features on the atheros range of integrated and external switches. * add a method to flush the whole address table; * add a method to flush all addresses on a given port; * add a method to download the address table; * .. and then a method to fetch entries from the address table. The table fetch/read methods pass through to the drivers for now since the drivers may implement different ways of fetching/caching the address table data. The atheros devices for example fetch the table by iterating over the table through a set of registers and so you need to keep that locked whilst you iterate otherwise you may have the table flushed half way by a port status change. This is a no-op until the userland and arswitch code shows up.
231 lines
6.1 KiB
C
231 lines
6.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2011-2012 Stefan Bethke.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/fcntl.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/socket.h>
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#include <sys/sx.h>
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#include <sys/systm.h>
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#include <sys/uio.h>
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#include <net/if.h>
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#include <dev/etherswitch/etherswitch.h>
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#include "etherswitch_if.h"
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struct etherswitch_softc {
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device_t sc_dev;
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struct cdev *sc_devnode;
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};
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static int etherswitch_probe(device_t);
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static int etherswitch_attach(device_t);
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static int etherswitch_detach(device_t);
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static void etherswitch_identify(driver_t *driver, device_t parent);
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devclass_t etherswitch_devclass;
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static device_method_t etherswitch_methods[] = {
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/* device interface */
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DEVMETHOD(device_identify, etherswitch_identify),
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DEVMETHOD(device_probe, etherswitch_probe),
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DEVMETHOD(device_attach, etherswitch_attach),
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DEVMETHOD(device_detach, etherswitch_detach),
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DEVMETHOD_END
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};
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driver_t etherswitch_driver = {
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"etherswitch",
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etherswitch_methods,
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sizeof(struct etherswitch_softc),
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};
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static d_ioctl_t etherswitchioctl;
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static struct cdevsw etherswitch_cdevsw = {
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.d_version = D_VERSION,
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.d_flags = D_TRACKCLOSE,
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.d_ioctl = etherswitchioctl,
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.d_name = "etherswitch",
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};
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static void
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etherswitch_identify(driver_t *driver, device_t parent)
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{
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if (device_find_child(parent, "etherswitch", -1) == NULL)
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BUS_ADD_CHILD(parent, 0, "etherswitch", -1);
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}
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static int
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etherswitch_probe(device_t dev)
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{
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device_set_desc(dev, "Switch controller");
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return (0);
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}
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static int
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etherswitch_attach(device_t dev)
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{
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int err;
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struct etherswitch_softc *sc;
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struct make_dev_args devargs;
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sc = device_get_softc(dev);
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sc->sc_dev = dev;
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make_dev_args_init(&devargs);
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devargs.mda_devsw = ðerswitch_cdevsw;
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devargs.mda_uid = UID_ROOT;
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devargs.mda_gid = GID_WHEEL;
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devargs.mda_mode = 0600;
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devargs.mda_si_drv1 = sc;
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err = make_dev_s(&devargs, &sc->sc_devnode, "etherswitch%d",
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device_get_unit(dev));
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if (err != 0) {
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device_printf(dev, "failed to create character device\n");
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return (ENXIO);
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}
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return (0);
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}
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static int
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etherswitch_detach(device_t dev)
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{
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struct etherswitch_softc *sc = (struct etherswitch_softc *)device_get_softc(dev);
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if (sc->sc_devnode)
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destroy_dev(sc->sc_devnode);
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return (0);
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}
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static int
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etherswitchioctl(struct cdev *cdev, u_long cmd, caddr_t data, int flags, struct thread *td)
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{
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struct etherswitch_softc *sc = cdev->si_drv1;
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device_t dev = sc->sc_dev;
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device_t etherswitch = device_get_parent(dev);
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etherswitch_conf_t conf;
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etherswitch_info_t *info;
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etherswitch_reg_t *reg;
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etherswitch_phyreg_t *phyreg;
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etherswitch_portid_t *portid;
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int error = 0;
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switch (cmd) {
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case IOETHERSWITCHGETINFO:
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info = ETHERSWITCH_GETINFO(etherswitch);
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bcopy(info, data, sizeof(etherswitch_info_t));
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break;
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case IOETHERSWITCHGETREG:
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reg = (etherswitch_reg_t *)data;
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ETHERSWITCH_LOCK(etherswitch);
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reg->val = ETHERSWITCH_READREG(etherswitch, reg->reg);
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ETHERSWITCH_UNLOCK(etherswitch);
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break;
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case IOETHERSWITCHSETREG:
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reg = (etherswitch_reg_t *)data;
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ETHERSWITCH_LOCK(etherswitch);
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error = ETHERSWITCH_WRITEREG(etherswitch, reg->reg, reg->val);
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ETHERSWITCH_UNLOCK(etherswitch);
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break;
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case IOETHERSWITCHGETPORT:
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error = ETHERSWITCH_GETPORT(etherswitch, (etherswitch_port_t *)data);
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break;
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case IOETHERSWITCHSETPORT:
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error = ETHERSWITCH_SETPORT(etherswitch, (etherswitch_port_t *)data);
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break;
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case IOETHERSWITCHGETVLANGROUP:
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error = ETHERSWITCH_GETVGROUP(etherswitch, (etherswitch_vlangroup_t *)data);
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break;
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case IOETHERSWITCHSETVLANGROUP:
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error = ETHERSWITCH_SETVGROUP(etherswitch, (etherswitch_vlangroup_t *)data);
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break;
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case IOETHERSWITCHGETPHYREG:
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phyreg = (etherswitch_phyreg_t *)data;
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phyreg->val = ETHERSWITCH_READPHYREG(etherswitch, phyreg->phy, phyreg->reg);
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break;
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case IOETHERSWITCHSETPHYREG:
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phyreg = (etherswitch_phyreg_t *)data;
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error = ETHERSWITCH_WRITEPHYREG(etherswitch, phyreg->phy, phyreg->reg, phyreg->val);
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break;
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case IOETHERSWITCHGETCONF:
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bzero(&conf, sizeof(etherswitch_conf_t));
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error = ETHERSWITCH_GETCONF(etherswitch, &conf);
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bcopy(&conf, data, sizeof(etherswitch_conf_t));
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break;
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case IOETHERSWITCHSETCONF:
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error = ETHERSWITCH_SETCONF(etherswitch, (etherswitch_conf_t *)data);
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break;
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case IOETHERSWITCHFLUSHALL:
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error = ETHERSWITCH_FLUSH_ALL(etherswitch);
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break;
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case IOETHERSWITCHFLUSHPORT:
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portid = (etherswitch_portid_t *)data;
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error = ETHERSWITCH_FLUSH_PORT(etherswitch, portid->es_port);
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break;
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case IOETHERSWITCHGETTABLE:
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error = ETHERSWITCH_FETCH_TABLE(etherswitch, (void *) data);
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break;
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case IOETHERSWITCHGETTABLEENTRY:
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error = ETHERSWITCH_FETCH_TABLE_ENTRY(etherswitch, (void *) data);
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break;
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default:
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error = ENOTTY;
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}
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return (error);
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}
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MODULE_VERSION(etherswitch, 1);
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