octebus.c revision 285830
1/*- 2 * Copyright (c) 2010 Juli Mallett <jmallett@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: releng/10.2/sys/mips/cavium/octe/octebus.c 219695 2011-03-16 08:56:22Z jmallett $ 27 */ 28 29/* 30 * Cavium Octeon Ethernet pseudo-bus attachment. 31 */ 32 33#include <sys/param.h> 34#include <sys/systm.h> 35#include <sys/bus.h> 36#include <sys/endian.h> 37#include <sys/kernel.h> 38#include <sys/mbuf.h> 39#include <sys/lock.h> 40#include <sys/module.h> 41#include <sys/mutex.h> 42#include <sys/rman.h> 43#include <sys/socket.h> 44#include <sys/sockio.h> 45#include <sys/sysctl.h> 46 47#include "ethernet-common.h" 48 49#include "octebusvar.h" 50 51static void octebus_identify(driver_t *drv, device_t parent); 52static int octebus_probe(device_t dev); 53static int octebus_attach(device_t dev); 54static int octebus_detach(device_t dev); 55static int octebus_shutdown(device_t dev); 56 57static device_method_t octebus_methods[] = { 58 /* Device interface */ 59 DEVMETHOD(device_identify, octebus_identify), 60 DEVMETHOD(device_probe, octebus_probe), 61 DEVMETHOD(device_attach, octebus_attach), 62 DEVMETHOD(device_detach, octebus_detach), 63 DEVMETHOD(device_shutdown, octebus_shutdown), 64 65 /* Bus interface. */ 66 DEVMETHOD(bus_add_child, bus_generic_add_child), 67 68 { 0, 0 } 69}; 70 71static driver_t octebus_driver = { 72 "octebus", 73 octebus_methods, 74 sizeof (struct octebus_softc), 75}; 76 77static devclass_t octebus_devclass; 78 79DRIVER_MODULE(octebus, ciu, octebus_driver, octebus_devclass, 0, 0); 80 81static void 82octebus_identify(driver_t *drv, device_t parent) 83{ 84 BUS_ADD_CHILD(parent, 0, "octebus", 0); 85} 86 87static int 88octebus_probe(device_t dev) 89{ 90 if (device_get_unit(dev) != 0) 91 return (ENXIO); 92 device_set_desc(dev, "Cavium Octeon Ethernet pseudo-bus"); 93 return (0); 94} 95 96static int 97octebus_attach(device_t dev) 98{ 99 struct octebus_softc *sc; 100 int rv; 101 102 sc = device_get_softc(dev); 103 sc->sc_dev = dev; 104 105 rv = cvm_oct_init_module(dev); 106 if (rv != 0) 107 return (ENXIO); 108 109 return (0); 110} 111 112static int 113octebus_detach(device_t dev) 114{ 115 cvm_oct_cleanup_module(dev); 116 return (0); 117} 118 119static int 120octebus_shutdown(device_t dev) 121{ 122 return (octebus_detach(dev)); 123} 124