1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2006 IronPort Systems Inc. <[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
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/bus.h>
35 #include <sys/condvar.h>
36 #include <sys/eventhandler.h>
37 #include <sys/kernel.h>
38 #include <sys/module.h>
39 #include <sys/rman.h>
40 #include <sys/selinfo.h>
41
42 #include <dev/pci/pcireg.h>
43 #include <dev/pci/pcivar.h>
44
45 #ifdef LOCAL_MODULE
46 #include <ipmivars.h>
47 #else
48 #include <dev/ipmi/ipmivars.h>
49 #endif
50
51 static int ipmi_pci_probe(device_t dev);
52 static int ipmi_pci_attach(device_t dev);
53
54 static struct ipmi_ident
55 {
56 u_int16_t vendor;
57 u_int16_t device;
58 char *desc;
59 } ipmi_identifiers[] = {
60 {0x1028, 0x000d, "Dell PE2650 SMIC interface"},
61 {0, 0, 0}
62 };
63
64 const char *
ipmi_pci_match(uint16_t vendor,uint16_t device)65 ipmi_pci_match(uint16_t vendor, uint16_t device)
66 {
67 struct ipmi_ident *m;
68
69 for (m = ipmi_identifiers; m->vendor != 0; m++)
70 if (m->vendor == vendor && m->device == device)
71 return (m->desc);
72 return (NULL);
73 }
74
75 static int
ipmi_pci_probe(device_t dev)76 ipmi_pci_probe(device_t dev)
77 {
78 const char *desc;
79
80 if (ipmi_attached)
81 return (ENXIO);
82
83 desc = ipmi_pci_match(pci_get_vendor(dev), pci_get_device(dev));
84 if (desc != NULL) {
85 device_set_desc(dev, desc);
86 return (BUS_PROBE_DEFAULT);
87 }
88
89 return (ENXIO);
90 }
91
92 static int
ipmi_pci_attach(device_t dev)93 ipmi_pci_attach(device_t dev)
94 {
95 struct ipmi_softc *sc = device_get_softc(dev);
96 struct ipmi_get_info info;
97 const char *mode;
98 int error, type;
99
100 /* Look for an IPMI entry in the SMBIOS table. */
101 if (!ipmi_smbios_identify(&info))
102 return (ENXIO);
103
104 sc->ipmi_dev = dev;
105
106 switch (info.iface_type) {
107 case KCS_MODE:
108 mode = "KCS";
109 break;
110 case SMIC_MODE:
111 mode = "SMIC";
112 break;
113 case BT_MODE:
114 device_printf(dev, "BT mode is unsupported\n");
115 return (ENXIO);
116 default:
117 device_printf(dev, "No IPMI interface found\n");
118 return (ENXIO);
119 }
120
121 device_printf(dev, "%s mode found at %s 0x%jx alignment 0x%x on %s\n",
122 mode, info.io_mode ? "io" : "mem",
123 (uintmax_t)info.address, info.offset,
124 device_get_name(device_get_parent(dev)));
125 if (info.io_mode)
126 type = SYS_RES_IOPORT;
127 else
128 type = SYS_RES_MEMORY;
129
130 sc->ipmi_io_rid = PCIR_BAR(0);
131 sc->ipmi_io_res[0] = bus_alloc_resource_any(dev, type,
132 &sc->ipmi_io_rid, RF_ACTIVE);
133 sc->ipmi_io_type = type;
134 sc->ipmi_io_spacing = info.offset;
135
136 if (sc->ipmi_io_res[0] == NULL) {
137 device_printf(dev, "couldn't configure pci io res\n");
138 return (ENXIO);
139 }
140
141 sc->ipmi_irq_rid = 0;
142 sc->ipmi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
143 &sc->ipmi_irq_rid, RF_SHAREABLE | RF_ACTIVE);
144
145 switch (info.iface_type) {
146 case KCS_MODE:
147 error = ipmi_kcs_attach(sc);
148 if (error)
149 goto bad;
150 break;
151 case SMIC_MODE:
152 error = ipmi_smic_attach(sc);
153 if (error)
154 goto bad;
155 break;
156 }
157 error = ipmi_attach(dev);
158 if (error)
159 goto bad;
160
161 return (0);
162 bad:
163 ipmi_release_resources(dev);
164 return (error);
165 }
166
167 static device_method_t ipmi_methods[] = {
168 /* Device interface */
169 DEVMETHOD(device_probe, ipmi_pci_probe),
170 DEVMETHOD(device_attach, ipmi_pci_attach),
171 DEVMETHOD(device_detach, ipmi_detach),
172 { 0, 0 }
173 };
174
175 static driver_t ipmi_pci_driver = {
176 "ipmi",
177 ipmi_methods,
178 sizeof(struct ipmi_softc)
179 };
180
181 DRIVER_MODULE(ipmi_pci, pci, ipmi_pci_driver, ipmi_devclass, 0, 0);
182
183 /* Native IPMI on PCI driver. */
184
185 static int
ipmi2_pci_probe(device_t dev)186 ipmi2_pci_probe(device_t dev)
187 {
188
189 if (pci_get_class(dev) == PCIC_SERIALBUS &&
190 pci_get_subclass(dev) == PCIS_SERIALBUS_IPMI) {
191 device_set_desc(dev, "IPMI System Interface");
192 return (BUS_PROBE_GENERIC);
193 }
194
195 return (ENXIO);
196 }
197
198 static int
ipmi2_pci_attach(device_t dev)199 ipmi2_pci_attach(device_t dev)
200 {
201 struct ipmi_softc *sc;
202 int error, iface, type;
203
204 sc = device_get_softc(dev);
205 sc->ipmi_dev = dev;
206
207 /* Interface is determined by progif. */
208 switch (pci_get_progif(dev)) {
209 case PCIP_SERIALBUS_IPMI_SMIC:
210 iface = SMIC_MODE;
211 break;
212 case PCIP_SERIALBUS_IPMI_KCS:
213 iface = KCS_MODE;
214 break;
215 case PCIP_SERIALBUS_IPMI_BT:
216 iface = BT_MODE;
217 device_printf(dev, "BT interface unsupported\n");
218 return (ENXIO);
219 default:
220 device_printf(dev, "Unsupported interface: %d\n",
221 pci_get_progif(dev));
222 return (ENXIO);
223 }
224
225 /* Check the BAR to determine our resource type. */
226 sc->ipmi_io_rid = PCIR_BAR(0);
227 if (PCI_BAR_IO(pci_read_config(dev, PCIR_BAR(0), 4)))
228 type = SYS_RES_IOPORT;
229 else
230 type = SYS_RES_MEMORY;
231 sc->ipmi_io_type = type;
232 sc->ipmi_io_spacing = 1;
233 sc->ipmi_io_res[0] = bus_alloc_resource_any(dev, type,
234 &sc->ipmi_io_rid, RF_ACTIVE);
235 if (sc->ipmi_io_res[0] == NULL) {
236 device_printf(dev, "couldn't map ports/memory\n");
237 return (ENXIO);
238 }
239
240 sc->ipmi_irq_rid = 0;
241 sc->ipmi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
242 &sc->ipmi_irq_rid, RF_SHAREABLE | RF_ACTIVE);
243
244 switch (iface) {
245 case KCS_MODE:
246 device_printf(dev, "using KSC interface\n");
247
248 /*
249 * We have to examine the resource directly to determine the
250 * alignment.
251 */
252 if (!ipmi_kcs_probe_align(sc)) {
253 device_printf(dev, "Unable to determine alignment\n");
254 error = ENXIO;
255 goto bad;
256 }
257
258 error = ipmi_kcs_attach(sc);
259 if (error)
260 goto bad;
261 break;
262 case SMIC_MODE:
263 device_printf(dev, "using SMIC interface\n");
264
265 error = ipmi_smic_attach(sc);
266 if (error)
267 goto bad;
268 break;
269 }
270 error = ipmi_attach(dev);
271 if (error)
272 goto bad;
273
274 return (0);
275 bad:
276 ipmi_release_resources(dev);
277 return (error);
278 }
279
280 static device_method_t ipmi2_methods[] = {
281 /* Device interface */
282 DEVMETHOD(device_probe, ipmi2_pci_probe),
283 DEVMETHOD(device_attach, ipmi2_pci_attach),
284 DEVMETHOD(device_detach, ipmi_detach),
285 { 0, 0 }
286 };
287
288 static driver_t ipmi2_pci_driver = {
289 "ipmi",
290 ipmi2_methods,
291 sizeof(struct ipmi_softc)
292 };
293
294 DRIVER_MODULE(ipmi2_pci, pci, ipmi2_pci_driver, ipmi_devclass, 0, 0);
295