1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2010 Juli Mallett <[email protected]>
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 * $FreeBSD$
29 */
30
31 /*
32 * Cavium Octeon Ethernet pseudo-bus attachment.
33 */
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/bus.h>
38 #include <sys/endian.h>
39 #include <sys/kernel.h>
40 #include <sys/mbuf.h>
41 #include <sys/lock.h>
42 #include <sys/module.h>
43 #include <sys/mutex.h>
44 #include <sys/rman.h>
45 #include <sys/socket.h>
46 #include <sys/sockio.h>
47 #include <sys/sysctl.h>
48
49 #include "ethernet-common.h"
50
51 #include "octebusvar.h"
52
53 static void octebus_identify(driver_t *drv, device_t parent);
54 static int octebus_probe(device_t dev);
55 static int octebus_attach(device_t dev);
56 static int octebus_detach(device_t dev);
57 static int octebus_shutdown(device_t dev);
58
59 static device_method_t octebus_methods[] = {
60 /* Device interface */
61 DEVMETHOD(device_identify, octebus_identify),
62 DEVMETHOD(device_probe, octebus_probe),
63 DEVMETHOD(device_attach, octebus_attach),
64 DEVMETHOD(device_detach, octebus_detach),
65 DEVMETHOD(device_shutdown, octebus_shutdown),
66
67 /* Bus interface. */
68 DEVMETHOD(bus_add_child, bus_generic_add_child),
69 { 0, 0 }
70 };
71
72 static driver_t octebus_driver = {
73 "octebus",
74 octebus_methods,
75 sizeof (struct octebus_softc),
76 };
77
78 static devclass_t octebus_devclass;
79
80 DRIVER_MODULE(octebus, ciu, octebus_driver, octebus_devclass, 0, 0);
81
82 static void
octebus_identify(driver_t * drv,device_t parent)83 octebus_identify(driver_t *drv, device_t parent)
84 {
85 BUS_ADD_CHILD(parent, 0, "octebus", 0);
86 }
87
88 static int
octebus_probe(device_t dev)89 octebus_probe(device_t dev)
90 {
91 if (device_get_unit(dev) != 0)
92 return (ENXIO);
93 device_set_desc(dev, "Cavium Octeon Ethernet pseudo-bus");
94 return (0);
95 }
96
97 static int
octebus_attach(device_t dev)98 octebus_attach(device_t dev)
99 {
100 struct octebus_softc *sc;
101 int rv;
102
103 sc = device_get_softc(dev);
104 sc->sc_dev = dev;
105
106 rv = cvm_oct_init_module(dev);
107 if (rv != 0)
108 return (ENXIO);
109
110 return (0);
111 }
112
113 static int
octebus_detach(device_t dev)114 octebus_detach(device_t dev)
115 {
116 cvm_oct_cleanup_module(dev);
117 return (0);
118 }
119
120 static int
octebus_shutdown(device_t dev)121 octebus_shutdown(device_t dev)
122 {
123 return (octebus_detach(dev));
124 }
125