FreeBSD/Linux Kernel Cross Reference
sys/mips/cavium/octe/octebus.c

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2010 Juli Mallett <jmallett@FreeBSD.org>
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    
    /*
     * Cavium Octeon Ethernet pseudo-bus attachment.
     */
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/bus.h>
    #include <sys/endian.h>
    #include <sys/kernel.h>
    #include <sys/mbuf.h>
    #include <sys/lock.h>
    #include <sys/module.h>
    #include <sys/mutex.h>
    #include <sys/rman.h>
    #include <sys/socket.h>
    #include <sys/sockio.h>
    #include <sys/sysctl.h>
    
    #include "ethernet-common.h"
    
    #include "octebusvar.h"
    
    static void             octebus_identify(driver_t *drv, device_t parent);
    static int              octebus_probe(device_t dev);
    static int              octebus_attach(device_t dev);
    static int              octebus_detach(device_t dev);
    static int              octebus_shutdown(device_t dev);
    
    static device_method_t octebus_methods[] = {
            /* Device interface */
            DEVMETHOD(device_identify,      octebus_identify),
            DEVMETHOD(device_probe,         octebus_probe),
            DEVMETHOD(device_attach,        octebus_attach),
            DEVMETHOD(device_detach,        octebus_detach),
            DEVMETHOD(device_shutdown,      octebus_shutdown),
    
            /* Bus interface.  */
            DEVMETHOD(bus_add_child,        bus_generic_add_child),
            { 0, 0 }
    };
    
    static driver_t octebus_driver = {
            "octebus",
            octebus_methods,
            sizeof (struct octebus_softc),
    };
    
    static devclass_t octebus_devclass;
    
    DRIVER_MODULE(octebus, ciu, octebus_driver, octebus_devclass, 0, 0);
    
    static void
    octebus_identify(driver_t *drv, device_t parent)
    {
            BUS_ADD_CHILD(parent, 0, "octebus", 0);
    }
    
    static int
    octebus_probe(device_t dev)
    {
            if (device_get_unit(dev) != 0)
                    return (ENXIO);
            device_set_desc(dev, "Cavium Octeon Ethernet pseudo-bus");
            return (0);
    }
    
    static int
    octebus_attach(device_t dev)
    {
           struct octebus_softc *sc;
           int rv;
   
           sc = device_get_softc(dev);
           sc->sc_dev = dev;
   
           rv = cvm_oct_init_module(dev);
           if (rv != 0)
                   return (ENXIO);
   
           return (0);
   }
   
   static int
   octebus_detach(device_t dev)
   {
           cvm_oct_cleanup_module(dev);
           return (0);
   }
   
   static int
   octebus_shutdown(device_t dev)
   {
           return (octebus_detach(dev));
   }

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