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 * $FreeBSD$
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
51 static void octebus_identify(driver_t *drv, device_t parent);
52 static int octebus_probe(device_t dev);
53 static int octebus_attach(device_t dev);
54 static int octebus_detach(device_t dev);
55 static int octebus_shutdown(device_t dev);
56
57 static 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
71 static driver_t octebus_driver = {
72 "octebus",
73 octebus_methods,
74 sizeof (struct octebus_softc),
75 };
76
77 static devclass_t octebus_devclass;
78
79 DRIVER_MODULE(octebus, ciu, octebus_driver, octebus_devclass, 0, 0);
80
81 static void
octebus_identify(driver_t * drv,device_t parent)82 octebus_identify(driver_t *drv, device_t parent)
83 {
84 BUS_ADD_CHILD(parent, 0, "octebus", 0);
85 }
86
87 static int
octebus_probe(device_t dev)88 octebus_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
96 static int
octebus_attach(device_t dev)97 octebus_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
112 static int
octebus_detach(device_t dev)113 octebus_detach(device_t dev)
114 {
115 cvm_oct_cleanup_module(dev);
116 return (0);
117 }
118
119 static int
octebus_shutdown(device_t dev)120 octebus_shutdown(device_t dev)
121 {
122 return (octebus_detach(dev));
123 }
124