1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2006 IronPort Systems Inc. <ambrisko@ironport.com>
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/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/selinfo.h>
38 #include <sys/efi.h>
39
40 #include <dev/pci/pcireg.h>
41 #include <dev/pci/pcivar.h>
42
43 #ifdef LOCAL_MODULE
44 #include <ipmivars.h>
45 #else
46 #include <dev/ipmi/ipmivars.h>
47 #endif
48
49 static int ipmi_pci_probe(device_t dev);
50 static int ipmi_pci_attach(device_t dev);
51
52 static struct ipmi_ident
53 {
54 u_int16_t vendor;
55 u_int16_t device;
56 char *desc;
57 } ipmi_identifiers[] = {
58 {0x1028, 0x000d, "Dell PE2650 SMIC interface"},
59 {0, 0, 0}
60 };
61
62 const char *
ipmi_pci_match(uint16_t vendor,uint16_t device)63 ipmi_pci_match(uint16_t vendor, uint16_t device)
64 {
65 struct ipmi_ident *m;
66
67 for (m = ipmi_identifiers; m->vendor != 0; m++)
68 if (m->vendor == vendor && m->device == device)
69 return (m->desc);
70 return (NULL);
71 }
72
73 static int
ipmi_pci_probe(device_t dev)74 ipmi_pci_probe(device_t dev)
75 {
76 const char *desc;
77
78 if (ipmi_attached)
79 return (ENXIO);
80
81 desc = ipmi_pci_match(pci_get_vendor(dev), pci_get_device(dev));
82 if (desc != NULL) {
83 device_set_desc(dev, desc);
84 return (BUS_PROBE_DEFAULT);
85 }
86
87 return (ENXIO);
88 }
89
90 static int
ipmi_pci_attach(device_t dev)91 ipmi_pci_attach(device_t dev)
92 {
93 struct ipmi_softc *sc = device_get_softc(dev);
94 struct ipmi_get_info info;
95 const char *mode;
96 int error, type;
97
98 /* Look for an IPMI entry in the SMBIOS table. */
99 if (!ipmi_smbios_identify(&info))
100 return (ENXIO);
101
102 sc->ipmi_dev = dev;
103
104 switch (info.iface_type) {
105 case KCS_MODE:
106 mode = "KCS";
107 break;
108 case SMIC_MODE:
109 mode = "SMIC";
110 break;
111 case BT_MODE:
112 mode = "BT";
113 break;
114 default:
115 device_printf(dev, "No IPMI interface found\n");
116 return (ENXIO);
117 }
118
119 device_printf(dev, "%s mode found at %s 0x%jx alignment 0x%x on %s\n",
120 mode, info.io_mode ? "io" : "mem",
121 (uintmax_t)info.address, info.offset,
122 device_get_name(device_get_parent(dev)));
123 if (info.io_mode)
124 type = SYS_RES_IOPORT;
125 else
126 type = SYS_RES_MEMORY;
127
128 sc->ipmi_io_rid = PCIR_BAR(0);
129 sc->ipmi_io_res[0] = bus_alloc_resource_any(dev, type,
130 &sc->ipmi_io_rid, RF_ACTIVE);
131 sc->ipmi_io_type = type;
132 sc->ipmi_io_spacing = info.offset;
133
134 if (sc->ipmi_io_res[0] == NULL) {
135 device_printf(dev, "couldn't configure pci io res\n");
136 return (ENXIO);
137 }
138
139 sc->ipmi_irq_rid = 0;
140 sc->ipmi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
141 &sc->ipmi_irq_rid, RF_SHAREABLE | RF_ACTIVE);
142
143 error = ENXIO;
144 switch (info.iface_type) {
145 case KCS_MODE:
146 error = ipmi_kcs_attach(sc);
147 break;
148 case SMIC_MODE:
149 error = ipmi_smic_attach(sc);
150 break;
151 case BT_MODE:
152 error = ipmi_bt_attach(sc);
153 break;
154 }
155 if (error)
156 goto bad;
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, 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 break;
218 default:
219 device_printf(dev, "Unsupported interface: %d\n",
220 pci_get_progif(dev));
221 return (ENXIO);
222 }
223
224 /* Check the BAR to determine our resource type. */
225 sc->ipmi_io_rid = PCIR_BAR(0);
226 if (PCI_BAR_IO(pci_read_config(dev, PCIR_BAR(0), 4)))
227 type = SYS_RES_IOPORT;
228 else
229 type = SYS_RES_MEMORY;
230 sc->ipmi_io_type = type;
231 sc->ipmi_io_spacing = 1;
232 sc->ipmi_io_res[0] = bus_alloc_resource_any(dev, type,
233 &sc->ipmi_io_rid, RF_ACTIVE);
234 if (sc->ipmi_io_res[0] == NULL) {
235 device_printf(dev, "couldn't map ports/memory\n");
236 return (ENXIO);
237 }
238
239 sc->ipmi_irq_rid = 0;
240 sc->ipmi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
241 &sc->ipmi_irq_rid, RF_SHAREABLE | RF_ACTIVE);
242
243 error = ENXIO;
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 goto bad;
255 }
256
257 error = ipmi_kcs_attach(sc);
258 if (error)
259 goto bad;
260 break;
261 case SMIC_MODE:
262 device_printf(dev, "using SMIC interface\n");
263 error = ipmi_smic_attach(sc);
264 break;
265 case BT_MODE:
266 device_printf(dev, "using BT interface\n");
267 error = ipmi_bt_attach(sc);
268 break;
269 }
270 if (error)
271 goto bad;
272 error = ipmi_attach(dev);
273 if (error)
274 goto bad;
275
276 return (0);
277 bad:
278 ipmi_release_resources(dev);
279 return (error);
280 }
281
282 static device_method_t ipmi2_methods[] = {
283 /* Device interface */
284 DEVMETHOD(device_probe, ipmi2_pci_probe),
285 DEVMETHOD(device_attach, ipmi2_pci_attach),
286 DEVMETHOD(device_detach, ipmi_detach),
287 { 0, 0 }
288 };
289
290 static driver_t ipmi2_pci_driver = {
291 "ipmi",
292 ipmi2_methods,
293 sizeof(struct ipmi_softc)
294 };
295
296 DRIVER_MODULE(ipmi2_pci, pci, ipmi2_pci_driver, 0, 0);
297 #ifdef ARCH_MAY_USE_EFI
298 MODULE_DEPEND(ipmi2_pci, efirt, 1, 1, 1);
299 #endif
300