1 /*-
2 * Copyright (c) 2006 IronPort Systems Inc. <ambrisko@ironport.com>
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: head/sys/dev/ipmi/ipmi_pci.c 168162 2007-03-31 21:39:02Z jhb $
27 */
28
29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/bus.h>
32 #include <sys/condvar.h>
33 #include <sys/eventhandler.h>
34 #include <sys/kernel.h>
35 #include <sys/module.h>
36 #include <sys/rman.h>
37 #include <sys/conf.h>
38
39 #include <bus/pci/pcireg.h>
40 #include <bus/pci/pcivar.h>
41
42 #ifdef LOCAL_MODULE
43 #include <ipmivars.h>
44 #else
45 #include <dev/misc/ipmi/ipmivars.h>
46 #endif
47
48 static int ipmi_pci_probe(device_t dev);
49 static int ipmi_pci_attach(device_t dev);
50
51 static struct ipmi_ident
52 {
53 u_int16_t vendor;
54 u_int16_t device;
55 char *desc;
56 } ipmi_identifiers[] = {
57 {0x1028, 0x000d, "Dell PE2650 SMIC interface"},
58 {0, 0, 0}
59 };
60
61 const char *
ipmi_pci_match(uint16_t vendor,uint16_t device)62 ipmi_pci_match(uint16_t vendor, uint16_t device)
63 {
64 struct ipmi_ident *m;
65
66 for (m = ipmi_identifiers; m->vendor != 0; m++)
67 if (m->vendor == vendor && m->device == device)
68 return (m->desc);
69 return (NULL);
70 }
71
72 static int
ipmi_pci_probe(device_t dev)73 ipmi_pci_probe(device_t dev)
74 {
75 const char *desc;
76
77 if (ipmi_attached)
78 return (ENXIO);
79
80 desc = ipmi_pci_match(pci_get_vendor(dev), pci_get_device(dev));
81 if (desc != NULL) {
82 device_set_desc(dev, desc);
83 return (BUS_PROBE_DEFAULT);
84 }
85
86 return (ENXIO);
87 }
88
89 static int
ipmi_pci_attach(device_t dev)90 ipmi_pci_attach(device_t dev)
91 {
92 struct ipmi_softc *sc = device_get_softc(dev);
93 struct ipmi_get_info info;
94 const char *mode;
95 int error, type;
96
97 /* Look for an IPMI entry in the SMBIOS table. */
98 if (!ipmi_smbios_identify(&info))
99 return (ENXIO);
100
101 sc->ipmi_dev = dev;
102
103 switch (info.iface_type) {
104 case KCS_MODE:
105 mode = "KCS";
106 break;
107 case SMIC_MODE:
108 mode = "SMIC";
109 break;
110 case BT_MODE:
111 device_printf(dev, "BT mode is unsupported\n");
112 return (ENXIO);
113 default:
114 device_printf(dev, "No IPMI interface found\n");
115 return (ENXIO);
116 }
117
118 device_printf(dev, "%s mode found at %s 0x%jx alignment 0x%x on %s\n",
119 mode, info.io_mode ? "io" : "mem",
120 (uintmax_t)info.address, info.offset,
121 device_get_name(device_get_parent(dev)));
122 if (info.io_mode)
123 type = SYS_RES_IOPORT;
124 else
125 type = SYS_RES_MEMORY;
126
127 sc->ipmi_io_rid = PCIR_BAR(0);
128 sc->ipmi_io_res[0] = bus_alloc_resource_any(dev, type,
129 &sc->ipmi_io_rid, RF_ACTIVE);
130 sc->ipmi_io_type = type;
131 sc->ipmi_io_spacing = info.offset;
132
133 if (sc->ipmi_io_res[0] == NULL) {
134 device_printf(dev, "couldn't configure pci io res\n");
135 return (ENXIO);
136 }
137
138 sc->ipmi_irq_rid = 0;
139 sc->ipmi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
140 &sc->ipmi_irq_rid, RF_SHAREABLE | RF_ACTIVE);
141
142 switch (info.iface_type) {
143 case KCS_MODE:
144 error = ipmi_kcs_attach(sc);
145 if (error)
146 goto bad;
147 break;
148 case SMIC_MODE:
149 error = ipmi_smic_attach(sc);
150 if (error)
151 goto bad;
152 break;
153 }
154 error = ipmi_attach(dev);
155 if (error)
156 goto bad;
157
158 return (0);
159 bad:
160 ipmi_release_resources(dev);
161 return (error);
162 }
163
164 static device_method_t ipmi_methods[] = {
165 /* Device interface */
166 DEVMETHOD(device_probe, ipmi_pci_probe),
167 DEVMETHOD(device_attach, ipmi_pci_attach),
168 DEVMETHOD(device_detach, ipmi_detach),
169 { 0, 0 }
170 };
171
172 static driver_t ipmi_pci_driver = {
173 "ipmi",
174 ipmi_methods,
175 sizeof(struct ipmi_softc)
176 };
177
178 DRIVER_MODULE(ipmi_pci, pci, ipmi_pci_driver, ipmi_devclass, NULL, NULL);
179
180 /* Native IPMI on PCI driver. */
181
182 static int
ipmi2_pci_probe(device_t dev)183 ipmi2_pci_probe(device_t dev)
184 {
185
186 if (pci_get_class(dev) == PCIC_SERIALBUS &&
187 pci_get_subclass(dev) == PCIS_SERIALBUS_IPMI) {
188 device_set_desc(dev, "IPMI System Interface");
189 return (BUS_PROBE_GENERIC);
190 }
191
192 return (ENXIO);
193 }
194
195 static int
ipmi2_pci_attach(device_t dev)196 ipmi2_pci_attach(device_t dev)
197 {
198 struct ipmi_softc *sc;
199 int error, iface, type;
200
201 sc = device_get_softc(dev);
202 sc->ipmi_dev = dev;
203
204 /* Interface is determined by progif. */
205 switch (pci_get_progif(dev)) {
206 case PCIP_SERIALBUS_IPMI_SMIC:
207 iface = SMIC_MODE;
208 break;
209 case PCIP_SERIALBUS_IPMI_KCS:
210 iface = KCS_MODE;
211 break;
212 case PCIP_SERIALBUS_IPMI_BT:
213 iface = BT_MODE;
214 device_printf(dev, "BT interface unsupported\n");
215 return (ENXIO);
216 default:
217 device_printf(dev, "Unsupported interface: %d\n",
218 pci_get_progif(dev));
219 return (ENXIO);
220 }
221
222 /* Check the BAR to determine our resource type. */
223 sc->ipmi_io_rid = PCIR_BAR(0);
224 if (PCI_BAR_IO(pci_read_config(dev, PCIR_BAR(0), 4)))
225 type = SYS_RES_IOPORT;
226 else
227 type = SYS_RES_MEMORY;
228 sc->ipmi_io_type = type;
229 sc->ipmi_io_spacing = 1;
230 sc->ipmi_io_res[0] = bus_alloc_resource_any(dev, type,
231 &sc->ipmi_io_rid, RF_ACTIVE);
232 if (sc->ipmi_io_res[0] == NULL) {
233 device_printf(dev, "couldn't map ports/memory\n");
234 return (ENXIO);
235 }
236
237 sc->ipmi_irq_rid = 0;
238 sc->ipmi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
239 &sc->ipmi_irq_rid, RF_SHAREABLE | RF_ACTIVE);
240
241 switch (iface) {
242 case KCS_MODE:
243 device_printf(dev, "using KSC interface\n");
244
245 /*
246 * We have to examine the resource directly to determine the
247 * alignment.
248 */
249 if (!ipmi_kcs_probe_align(sc)) {
250 device_printf(dev, "Unable to determine alignment\n");
251 error = ENXIO;
252 goto bad;
253 }
254
255 error = ipmi_kcs_attach(sc);
256 if (error)
257 goto bad;
258 break;
259 case SMIC_MODE:
260 device_printf(dev, "using SMIC interface\n");
261
262 error = ipmi_smic_attach(sc);
263 if (error)
264 goto bad;
265 break;
266 }
267 error = ipmi_attach(dev);
268 if (error)
269 goto bad;
270
271 return (0);
272 bad:
273 ipmi_release_resources(dev);
274 return (error);
275 }
276
277 static device_method_t ipmi2_methods[] = {
278 /* Device interface */
279 DEVMETHOD(device_probe, ipmi2_pci_probe),
280 DEVMETHOD(device_attach, ipmi2_pci_attach),
281 DEVMETHOD(device_detach, ipmi_detach),
282 { 0, 0 }
283 };
284
285 static driver_t ipmi2_pci_driver = {
286 "ipmi",
287 ipmi2_methods,
288 sizeof(struct ipmi_softc)
289 };
290
291 DRIVER_MODULE(ipmi2_pci, pci, ipmi2_pci_driver, ipmi_devclass, NULL, NULL);
292