1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
24 */
25
26 /*
27 * FMA capability messenger
28 *
29 * fdd-msg module is called once when fmd starts up. It does the following
30 * based on different scenarios
31 *
32 * 1. If it's on a x86 platform, fdd-msg module sends fdd running on service
33 * processor a message (ILOM) which indicates the Solaris host FMA capability.
34 * The message is sent via the BMC driver (KCS interface) to the IPMI stack
35 * of ILOM using the IPMI Sun OEM core tunnel command. The sub-command is
36 * CORE_TUNNEL_SUBCMD_HOSTCAP. The IPMI stack posts an host FMA capability
37 * event to the event manager upon receiving this message. fdd subscribes to
38 * the event manager for this event. Upon receving this event, fdd will adjust
39 * its configuration.
40 *
41 * 2. If it's on a Sparc platform, fdd-msg module just exit for now.
42 */
43
44 #include <errno.h>
45 #include <stdio.h>
46 #include <strings.h>
47 #include <sys/systeminfo.h>
48 #include <libipmi.h>
49 #include <sys/devfm.h>
50 #include <fm/fmd_api.h>
51 #if defined(__x86)
52 #include <sys/x86_archext.h>
53 #include <fm/fmd_agent.h>
54 #include <libnvpair.h>
55 #endif
56
57 #define CMD_SUNOEM_CORE_TUNNEL 0x44
58 #define CORE_TUNNEL_SUBCMD_HOSTFMACAP 2
59 #define OEM_DATA_LENGTH 3
60 #define VERSION 0x10
61
62 #if defined(__x86)
63 typedef struct cpu_tbl {
64 char vendor[X86_VENDOR_STRLEN];
65 int32_t family;
66 int32_t model;
67 char *propname;
68 } cpu_tbl_t;
69
70 static cpu_tbl_t fma_cap_list[] = {
71 {"GenuineIntel", 6, 26, "NHMEP_fma_cap"},
72 {"GenuineIntel", 6, 46, "NHMEX_fma_cap"},
73 {"GenuineIntel", 6, 44, "WSMEP_fma_cap"},
74 {"GenuineIntel", 6, 47, "INTLN_fma_cap"},
75 {0, 0, 0, 0}
76 };
77 #endif
78
79 static int
check_sunoem(ipmi_handle_t * ipmi_hdl)80 check_sunoem(ipmi_handle_t *ipmi_hdl)
81 {
82 ipmi_deviceid_t *devid;
83
84 if ((devid = ipmi_get_deviceid(ipmi_hdl)) == NULL)
85 return (-1);
86
87 if (!ipmi_is_sun_ilom(devid))
88 return (-2);
89
90 return (0);
91 }
92
93 #if defined(__x86)
94 static int32_t
fma_cap_cpu_info(cpu_tbl_t * ci)95 fma_cap_cpu_info(cpu_tbl_t *ci)
96 {
97 nvlist_t **cpus, *nvl;
98 uint_t ncpu, i;
99 fmd_agent_hdl_t *hdl;
100 char *ven;
101 int32_t family, model;
102
103 if ((hdl = fmd_agent_open(FMD_AGENT_VERSION)) == NULL)
104 return (-1);
105 if (fmd_agent_physcpu_info(hdl, &cpus, &ncpu) != 0) {
106 fmd_agent_close(hdl);
107 return (-1);
108 }
109 fmd_agent_close(hdl);
110
111 if (cpus == NULL)
112 return (-1);
113
114 /*
115 * There is no mixed CPU type on x86 systems, it's ok to
116 * just pick the first one
117 */
118 nvl = cpus[0];
119 if (nvlist_lookup_string(nvl, FM_PHYSCPU_INFO_VENDOR_ID, &ven) != 0 ||
120 nvlist_lookup_int32(nvl, FM_PHYSCPU_INFO_FAMILY, &family) != 0 ||
121 nvlist_lookup_int32(nvl, FM_PHYSCPU_INFO_MODEL, &model) != 0) {
122 for (i = 0; i < ncpu; i++)
123 nvlist_free(cpus[i]);
124 umem_free(cpus, sizeof (nvlist_t *) * ncpu);
125 return (-1);
126 }
127
128 (void) snprintf(ci->vendor, X86_VENDOR_STRLEN, "%s", ven);
129 ci->family = family;
130 ci->model = model;
131
132 for (i = 0; i < ncpu; i++)
133 nvlist_free(cpus[i]);
134 umem_free(cpus, sizeof (nvlist_t *) * ncpu);
135 return (0);
136 }
137 #endif
138
139 static uint32_t
get_cap_conf(fmd_hdl_t * hdl)140 get_cap_conf(fmd_hdl_t *hdl)
141 {
142 uint32_t fma_cap;
143 #if defined(__x86)
144 int found = 0;
145 cpu_tbl_t *cl, ci;
146
147 if (fma_cap_cpu_info(&ci) == 0) {
148 fmd_hdl_debug(hdl, "Got CPU info: vendor=%s, family=%d, "
149 "model=%d\n", ci.vendor, ci.family, ci.model);
150 for (cl = fma_cap_list; cl->propname != NULL; cl++) {
151 if (strncmp(ci.vendor, cl->vendor,
152 X86_VENDOR_STRLEN) == 0 &&
153 ci.family == cl->family &&
154 ci.model == cl->model) {
155 found++;
156 break;
157 }
158 }
159 } else {
160 fmd_hdl_debug(hdl, "Failed to get CPU info");
161 }
162
163 if (found) {
164 fma_cap = fmd_prop_get_int32(hdl, cl->propname);
165 fmd_hdl_debug(hdl, "Found property, FMA capability=0x%x",
166 fma_cap);
167 } else {
168 #endif
169 fma_cap = fmd_prop_get_int32(hdl, "default_fma_cap");
170 fmd_hdl_debug(hdl, "Didn't find FMA capability property, "
171 "use default=0x%x", fma_cap);
172 #if defined(__x86)
173 }
174 #endif
175
176 return (fma_cap);
177 }
178
179 static void
send_fma_cap_to_ilom(fmd_hdl_t * hdl,uint32_t fma_cap)180 send_fma_cap_to_ilom(fmd_hdl_t *hdl, uint32_t fma_cap)
181 {
182 int error;
183 char *msg;
184 ipmi_handle_t *ipmi_hdl;
185 ipmi_cmd_t cmd;
186 uint8_t oem_data[OEM_DATA_LENGTH];
187
188 if ((ipmi_hdl = ipmi_open(&error, &msg, IPMI_TRANSPORT_BMC, NULL))
189 == NULL) {
190 /*
191 * If /dev/ipmi0 doesn't exist on the system, then return
192 * without doing anything.
193 */
194 if (error != EIPMI_BMC_OPEN_FAILED)
195 fmd_hdl_abort(hdl, "Failed to initialize IPMI "
196 "connection: %s\n", msg);
197 fmd_hdl_debug(hdl, "Failed: no IPMI connection present");
198 return;
199 }
200
201 /*
202 * Check if it's Sun ILOM
203 */
204 if (check_sunoem(ipmi_hdl) != 0) {
205 fmd_hdl_debug(hdl, "Service Processor does not run "
206 "Sun ILOM");
207 ipmi_close(ipmi_hdl);
208 return;
209 }
210
211 oem_data[0] = CORE_TUNNEL_SUBCMD_HOSTFMACAP;
212 oem_data[1] = VERSION;
213 oem_data[2] = fma_cap;
214
215 cmd.ic_netfn = IPMI_NETFN_OEM;
216 cmd.ic_lun = 0;
217 cmd.ic_cmd = CMD_SUNOEM_CORE_TUNNEL;
218 cmd.ic_dlen = OEM_DATA_LENGTH;
219 cmd.ic_data = oem_data;
220
221 if (ipmi_send(ipmi_hdl, &cmd) == NULL) {
222 fmd_hdl_debug(hdl, "Failed to send Solaris FMA "
223 "capability to ilom: %s", ipmi_errmsg(ipmi_hdl));
224 }
225
226 ipmi_close(ipmi_hdl);
227 }
228
229 /*ARGSUSED*/
230 static void
fma_cap_init(fmd_hdl_t * hdl,id_t id,void * data)231 fma_cap_init(fmd_hdl_t *hdl, id_t id, void *data)
232 {
233 uint32_t fma_cap;
234
235 fma_cap = get_cap_conf(hdl);
236 send_fma_cap_to_ilom(hdl, fma_cap);
237
238 fmd_hdl_unregister(hdl);
239 }
240
241 static const fmd_hdl_ops_t fmd_ops = {
242 NULL, /* fmdo_recv */
243 fma_cap_init, /* fmdo_timeout */
244 NULL, /* fmdo_close */
245 NULL, /* fmdo_stats */
246 NULL, /* fmdo_gc */
247 NULL, /* fmdo_send */
248 NULL, /* fmdo_topo */
249 };
250
251 static const fmd_prop_t fmd_props[] = {
252 { "interval", FMD_TYPE_TIME, "1s" },
253 { "default_fma_cap", FMD_TYPE_UINT32, "0x3" },
254 { "NHMEP_fma_cap", FMD_TYPE_UINT32, "0x3" },
255 { "NHMEX_fma_cap", FMD_TYPE_UINT32, "0x2" },
256 { "WSMEP_fma_cap", FMD_TYPE_UINT32, "0x3" },
257 { "INTLN_fma_cap", FMD_TYPE_UINT32, "0x2" },
258 { NULL, 0, NULL }
259 };
260
261 static const fmd_hdl_info_t fmd_info = {
262 "FMA Capability Messenger", "1.1", &fmd_ops, fmd_props
263 };
264
265 void
_fmd_init(fmd_hdl_t * hdl)266 _fmd_init(fmd_hdl_t *hdl)
267 {
268 char isa[8];
269
270 /*
271 * For now the module only sends message to ILOM on i386 platforms
272 * till CR 6933053 is fixed. Module unregister may cause etm module
273 * core dump due to 6933053.
274 */
275 if ((sysinfo(SI_ARCHITECTURE, isa, sizeof (isa)) == -1) ||
276 (strncmp(isa, "i386", 4) != 0))
277 return;
278
279 if (fmd_hdl_register(hdl, FMD_API_VERSION, &fmd_info) != 0)
280 return;
281
282 /*
283 * Setup the timer.
284 */
285 (void) fmd_timer_install(hdl, NULL, NULL, 2000000000ULL);
286 }
287
288 /*ARGSUSED*/
289 void
_fmd_fini(fmd_hdl_t * hdl)290 _fmd_fini(fmd_hdl_t *hdl)
291 {
292 }
293