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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
8808a793 | 2 | /* |
eb93b7df DW |
3 | * A hwmon driver for the IBM System Director Active Energy Manager (AEM) |
4 | * temperature/power/energy sensors and capping functionality. | |
8808a793 DW |
5 | * Copyright (C) 2008 IBM |
6 | * | |
5407e051 | 7 | * Author: Darrick J. Wong <darrick.wong@oracle.com> |
8808a793 DW |
8 | */ |
9 | ||
55d705cc JP |
10 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
11 | ||
8808a793 DW |
12 | #include <linux/ipmi.h> |
13 | #include <linux/module.h> | |
14 | #include <linux/hwmon.h> | |
15 | #include <linux/hwmon-sysfs.h> | |
16 | #include <linux/jiffies.h> | |
17 | #include <linux/mutex.h> | |
18 | #include <linux/kdev_t.h> | |
19 | #include <linux/spinlock.h> | |
20 | #include <linux/idr.h> | |
5a0e3ad6 | 21 | #include <linux/slab.h> |
8808a793 DW |
22 | #include <linux/sched.h> |
23 | #include <linux/platform_device.h> | |
24 | #include <linux/math64.h> | |
25 | #include <linux/time.h> | |
fa845740 | 26 | #include <linux/err.h> |
8808a793 DW |
27 | |
28 | #define REFRESH_INTERVAL (HZ) | |
29 | #define IPMI_TIMEOUT (30 * HZ) | |
30 | #define DRVNAME "aem" | |
31 | ||
32 | #define AEM_NETFN 0x2E | |
33 | ||
34 | #define AEM_FIND_FW_CMD 0x80 | |
35 | #define AEM_ELEMENT_CMD 0x81 | |
36 | #define AEM_FW_INSTANCE_CMD 0x82 | |
37 | ||
38 | #define AEM_READ_ELEMENT_CFG 0x80 | |
39 | #define AEM_READ_BUFFER 0x81 | |
40 | #define AEM_READ_REGISTER 0x82 | |
41 | #define AEM_WRITE_REGISTER 0x83 | |
42 | #define AEM_SET_REG_MASK 0x84 | |
43 | #define AEM_CLEAR_REG_MASK 0x85 | |
44 | #define AEM_READ_ELEMENT_CFG2 0x86 | |
45 | ||
46 | #define AEM_CONTROL_ELEMENT 0 | |
47 | #define AEM_ENERGY_ELEMENT 1 | |
48 | #define AEM_CLOCK_ELEMENT 4 | |
49 | #define AEM_POWER_CAP_ELEMENT 7 | |
50 | #define AEM_EXHAUST_ELEMENT 9 | |
51 | #define AEM_POWER_ELEMENT 10 | |
52 | ||
53 | #define AEM_MODULE_TYPE_ID 0x0001 | |
54 | ||
55 | #define AEM2_NUM_ENERGY_REGS 2 | |
56 | #define AEM2_NUM_PCAP_REGS 6 | |
57 | #define AEM2_NUM_TEMP_REGS 2 | |
58 | #define AEM2_NUM_SENSORS 14 | |
59 | ||
60 | #define AEM1_NUM_ENERGY_REGS 1 | |
61 | #define AEM1_NUM_SENSORS 3 | |
62 | ||
63 | /* AEM 2.x has more energy registers */ | |
64 | #define AEM_NUM_ENERGY_REGS AEM2_NUM_ENERGY_REGS | |
65 | /* AEM 2.x needs more sensor files */ | |
66 | #define AEM_NUM_SENSORS AEM2_NUM_SENSORS | |
67 | ||
68 | #define POWER_CAP 0 | |
69 | #define POWER_CAP_MAX_HOTPLUG 1 | |
70 | #define POWER_CAP_MAX 2 | |
71 | #define POWER_CAP_MIN_WARNING 3 | |
72 | #define POWER_CAP_MIN 4 | |
73 | #define POWER_AUX 5 | |
74 | ||
75 | #define AEM_DEFAULT_POWER_INTERVAL 1000 | |
76 | #define AEM_MIN_POWER_INTERVAL 200 | |
77 | #define UJ_PER_MJ 1000L | |
78 | ||
65807044 | 79 | static DEFINE_IDA(aem_ida); |
8808a793 | 80 | |
fe2d5ffc DW |
81 | static struct platform_driver aem_driver = { |
82 | .driver = { | |
83 | .name = DRVNAME, | |
84 | .bus = &platform_bus_type, | |
85 | } | |
8808a793 DW |
86 | }; |
87 | ||
88 | struct aem_ipmi_data { | |
89 | struct completion read_complete; | |
90 | struct ipmi_addr address; | |
3f901c86 | 91 | struct ipmi_user *user; |
8808a793 DW |
92 | int interface; |
93 | ||
94 | struct kernel_ipmi_msg tx_message; | |
95 | long tx_msgid; | |
96 | ||
97 | void *rx_msg_data; | |
98 | unsigned short rx_msg_len; | |
99 | unsigned char rx_result; | |
100 | int rx_recv_type; | |
101 | ||
102 | struct device *bmc_device; | |
103 | }; | |
104 | ||
105 | struct aem_ro_sensor_template { | |
106 | char *label; | |
107 | ssize_t (*show)(struct device *dev, | |
108 | struct device_attribute *devattr, | |
109 | char *buf); | |
110 | int index; | |
111 | }; | |
112 | ||
113 | struct aem_rw_sensor_template { | |
114 | char *label; | |
115 | ssize_t (*show)(struct device *dev, | |
116 | struct device_attribute *devattr, | |
117 | char *buf); | |
118 | ssize_t (*set)(struct device *dev, | |
119 | struct device_attribute *devattr, | |
120 | const char *buf, size_t count); | |
121 | int index; | |
122 | }; | |
123 | ||
124 | struct aem_data { | |
125 | struct list_head list; | |
126 | ||
127 | struct device *hwmon_dev; | |
128 | struct platform_device *pdev; | |
129 | struct mutex lock; | |
130 | char valid; | |
131 | unsigned long last_updated; /* In jiffies */ | |
132 | u8 ver_major; | |
133 | u8 ver_minor; | |
134 | u8 module_handle; | |
135 | int id; | |
136 | struct aem_ipmi_data ipmi; | |
137 | ||
da8ebe4e | 138 | /* Function and buffer to update sensors */ |
8808a793 | 139 | void (*update)(struct aem_data *data); |
da8ebe4e | 140 | struct aem_read_sensor_resp *rs_resp; |
8808a793 DW |
141 | |
142 | /* | |
143 | * AEM 1.x sensors: | |
144 | * Available sensors: | |
145 | * Energy meter | |
146 | * Power meter | |
147 | * | |
148 | * AEM 2.x sensors: | |
149 | * Two energy meters | |
150 | * Two power meters | |
151 | * Two temperature sensors | |
152 | * Six power cap registers | |
153 | */ | |
154 | ||
155 | /* sysfs attrs */ | |
156 | struct sensor_device_attribute sensors[AEM_NUM_SENSORS]; | |
157 | ||
158 | /* energy use in mJ */ | |
159 | u64 energy[AEM_NUM_ENERGY_REGS]; | |
160 | ||
161 | /* power sampling interval in ms */ | |
162 | unsigned long power_period[AEM_NUM_ENERGY_REGS]; | |
163 | ||
164 | /* Everything past here is for AEM2 only */ | |
165 | ||
166 | /* power caps in dW */ | |
167 | u16 pcap[AEM2_NUM_PCAP_REGS]; | |
168 | ||
169 | /* exhaust temperature in C */ | |
170 | u8 temp[AEM2_NUM_TEMP_REGS]; | |
171 | }; | |
172 | ||
173 | /* Data structures returned by the AEM firmware */ | |
174 | struct aem_iana_id { | |
175 | u8 bytes[3]; | |
176 | }; | |
177 | static struct aem_iana_id system_x_id = { | |
178 | .bytes = {0x4D, 0x4F, 0x00} | |
179 | }; | |
180 | ||
181 | /* These are used to find AEM1 instances */ | |
182 | struct aem_find_firmware_req { | |
183 | struct aem_iana_id id; | |
184 | u8 rsvd; | |
a064d5bd AV |
185 | __be16 index; |
186 | __be16 module_type_id; | |
8808a793 DW |
187 | } __packed; |
188 | ||
189 | struct aem_find_firmware_resp { | |
190 | struct aem_iana_id id; | |
191 | u8 num_instances; | |
192 | } __packed; | |
193 | ||
194 | /* These are used to find AEM2 instances */ | |
195 | struct aem_find_instance_req { | |
196 | struct aem_iana_id id; | |
197 | u8 instance_number; | |
a064d5bd | 198 | __be16 module_type_id; |
8808a793 DW |
199 | } __packed; |
200 | ||
201 | struct aem_find_instance_resp { | |
202 | struct aem_iana_id id; | |
203 | u8 num_instances; | |
204 | u8 major; | |
205 | u8 minor; | |
206 | u8 module_handle; | |
207 | u16 record_id; | |
208 | } __packed; | |
209 | ||
210 | /* These are used to query sensors */ | |
211 | struct aem_read_sensor_req { | |
212 | struct aem_iana_id id; | |
213 | u8 module_handle; | |
214 | u8 element; | |
215 | u8 subcommand; | |
216 | u8 reg; | |
217 | u8 rx_buf_size; | |
218 | } __packed; | |
219 | ||
220 | struct aem_read_sensor_resp { | |
221 | struct aem_iana_id id; | |
222 | u8 bytes[0]; | |
223 | } __packed; | |
224 | ||
225 | /* Data structures to talk to the IPMI layer */ | |
226 | struct aem_driver_data { | |
227 | struct list_head aem_devices; | |
228 | struct ipmi_smi_watcher bmc_events; | |
229 | struct ipmi_user_hndl ipmi_hndlrs; | |
230 | }; | |
231 | ||
232 | static void aem_register_bmc(int iface, struct device *dev); | |
233 | static void aem_bmc_gone(int iface); | |
234 | static void aem_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data); | |
235 | ||
236 | static void aem_remove_sensors(struct aem_data *data); | |
8808a793 DW |
237 | static int aem1_find_sensors(struct aem_data *data); |
238 | static int aem2_find_sensors(struct aem_data *data); | |
239 | static void update_aem1_sensors(struct aem_data *data); | |
240 | static void update_aem2_sensors(struct aem_data *data); | |
241 | ||
242 | static struct aem_driver_data driver_data = { | |
243 | .aem_devices = LIST_HEAD_INIT(driver_data.aem_devices), | |
244 | .bmc_events = { | |
245 | .owner = THIS_MODULE, | |
246 | .new_smi = aem_register_bmc, | |
247 | .smi_gone = aem_bmc_gone, | |
248 | }, | |
249 | .ipmi_hndlrs = { | |
250 | .ipmi_recv_hndl = aem_msg_handler, | |
251 | }, | |
252 | }; | |
253 | ||
254 | /* Functions to talk to the IPMI layer */ | |
255 | ||
256 | /* Initialize IPMI address, message buffers and user data */ | |
257 | static int aem_init_ipmi_data(struct aem_ipmi_data *data, int iface, | |
258 | struct device *bmc) | |
259 | { | |
260 | int err; | |
261 | ||
262 | init_completion(&data->read_complete); | |
263 | data->bmc_device = bmc; | |
264 | ||
265 | /* Initialize IPMI address */ | |
266 | data->address.addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE; | |
267 | data->address.channel = IPMI_BMC_CHANNEL; | |
268 | data->address.data[0] = 0; | |
269 | data->interface = iface; | |
270 | ||
271 | /* Initialize message buffers */ | |
272 | data->tx_msgid = 0; | |
273 | data->tx_message.netfn = AEM_NETFN; | |
274 | ||
275 | /* Create IPMI messaging interface user */ | |
276 | err = ipmi_create_user(data->interface, &driver_data.ipmi_hndlrs, | |
277 | data, &data->user); | |
278 | if (err < 0) { | |
b55f3757 GR |
279 | dev_err(bmc, |
280 | "Unable to register user with IPMI interface %d\n", | |
281 | data->interface); | |
12ca0b56 | 282 | return err; |
8808a793 DW |
283 | } |
284 | ||
285 | return 0; | |
286 | } | |
287 | ||
288 | /* Send an IPMI command */ | |
289 | static int aem_send_message(struct aem_ipmi_data *data) | |
290 | { | |
291 | int err; | |
292 | ||
293 | err = ipmi_validate_addr(&data->address, sizeof(data->address)); | |
294 | if (err) | |
295 | goto out; | |
296 | ||
297 | data->tx_msgid++; | |
298 | err = ipmi_request_settime(data->user, &data->address, data->tx_msgid, | |
299 | &data->tx_message, data, 0, 0, 0); | |
300 | if (err) | |
301 | goto out1; | |
302 | ||
303 | return 0; | |
304 | out1: | |
305 | dev_err(data->bmc_device, "request_settime=%x\n", err); | |
306 | return err; | |
307 | out: | |
308 | dev_err(data->bmc_device, "validate_addr=%x\n", err); | |
309 | return err; | |
310 | } | |
311 | ||
312 | /* Dispatch IPMI messages to callers */ | |
313 | static void aem_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data) | |
314 | { | |
315 | unsigned short rx_len; | |
316 | struct aem_ipmi_data *data = user_msg_data; | |
317 | ||
318 | if (msg->msgid != data->tx_msgid) { | |
b55f3757 GR |
319 | dev_err(data->bmc_device, |
320 | "Mismatch between received msgid (%02x) and transmitted msgid (%02x)!\n", | |
8808a793 DW |
321 | (int)msg->msgid, |
322 | (int)data->tx_msgid); | |
323 | ipmi_free_recv_msg(msg); | |
324 | return; | |
325 | } | |
326 | ||
327 | data->rx_recv_type = msg->recv_type; | |
328 | if (msg->msg.data_len > 0) | |
329 | data->rx_result = msg->msg.data[0]; | |
330 | else | |
331 | data->rx_result = IPMI_UNKNOWN_ERR_COMPLETION_CODE; | |
332 | ||
333 | if (msg->msg.data_len > 1) { | |
334 | rx_len = msg->msg.data_len - 1; | |
335 | if (data->rx_msg_len < rx_len) | |
336 | rx_len = data->rx_msg_len; | |
337 | data->rx_msg_len = rx_len; | |
338 | memcpy(data->rx_msg_data, msg->msg.data + 1, data->rx_msg_len); | |
339 | } else | |
340 | data->rx_msg_len = 0; | |
341 | ||
342 | ipmi_free_recv_msg(msg); | |
343 | complete(&data->read_complete); | |
344 | } | |
345 | ||
8808a793 DW |
346 | /* Sensor support functions */ |
347 | ||
da8ebe4e | 348 | /* Read a sensor value; must be called with data->lock held */ |
8808a793 DW |
349 | static int aem_read_sensor(struct aem_data *data, u8 elt, u8 reg, |
350 | void *buf, size_t size) | |
351 | { | |
352 | int rs_size, res; | |
353 | struct aem_read_sensor_req rs_req; | |
da8ebe4e JD |
354 | /* Use preallocated rx buffer */ |
355 | struct aem_read_sensor_resp *rs_resp = data->rs_resp; | |
8808a793 DW |
356 | struct aem_ipmi_data *ipmi = &data->ipmi; |
357 | ||
358 | /* AEM registers are 1, 2, 4 or 8 bytes */ | |
359 | switch (size) { | |
360 | case 1: | |
361 | case 2: | |
362 | case 4: | |
363 | case 8: | |
364 | break; | |
365 | default: | |
366 | return -EINVAL; | |
367 | } | |
368 | ||
369 | rs_req.id = system_x_id; | |
370 | rs_req.module_handle = data->module_handle; | |
371 | rs_req.element = elt; | |
372 | rs_req.subcommand = AEM_READ_REGISTER; | |
373 | rs_req.reg = reg; | |
374 | rs_req.rx_buf_size = size; | |
375 | ||
376 | ipmi->tx_message.cmd = AEM_ELEMENT_CMD; | |
377 | ipmi->tx_message.data = (char *)&rs_req; | |
378 | ipmi->tx_message.data_len = sizeof(rs_req); | |
379 | ||
380 | rs_size = sizeof(*rs_resp) + size; | |
8808a793 DW |
381 | ipmi->rx_msg_data = rs_resp; |
382 | ipmi->rx_msg_len = rs_size; | |
383 | ||
384 | aem_send_message(ipmi); | |
385 | ||
386 | res = wait_for_completion_timeout(&ipmi->read_complete, IPMI_TIMEOUT); | |
66a89b21 JL |
387 | if (!res) { |
388 | res = -ETIMEDOUT; | |
389 | goto out; | |
390 | } | |
8808a793 DW |
391 | |
392 | if (ipmi->rx_result || ipmi->rx_msg_len != rs_size || | |
393 | memcmp(&rs_resp->id, &system_x_id, sizeof(system_x_id))) { | |
66a89b21 JL |
394 | res = -ENOENT; |
395 | goto out; | |
8808a793 DW |
396 | } |
397 | ||
398 | switch (size) { | |
399 | case 1: { | |
400 | u8 *x = buf; | |
401 | *x = rs_resp->bytes[0]; | |
402 | break; | |
403 | } | |
404 | case 2: { | |
405 | u16 *x = buf; | |
a064d5bd | 406 | *x = be16_to_cpup((__be16 *)rs_resp->bytes); |
8808a793 DW |
407 | break; |
408 | } | |
409 | case 4: { | |
410 | u32 *x = buf; | |
a064d5bd | 411 | *x = be32_to_cpup((__be32 *)rs_resp->bytes); |
8808a793 DW |
412 | break; |
413 | } | |
414 | case 8: { | |
415 | u64 *x = buf; | |
a064d5bd | 416 | *x = be64_to_cpup((__be64 *)rs_resp->bytes); |
8808a793 DW |
417 | break; |
418 | } | |
419 | } | |
66a89b21 | 420 | res = 0; |
8808a793 | 421 | |
66a89b21 | 422 | out: |
66a89b21 | 423 | return res; |
8808a793 DW |
424 | } |
425 | ||
426 | /* Update AEM energy registers */ | |
bb15e7f2 DW |
427 | static void update_aem_energy_one(struct aem_data *data, int which) |
428 | { | |
429 | aem_read_sensor(data, AEM_ENERGY_ELEMENT, which, | |
430 | &data->energy[which], 8); | |
431 | } | |
432 | ||
8808a793 DW |
433 | static void update_aem_energy(struct aem_data *data) |
434 | { | |
bb15e7f2 | 435 | update_aem_energy_one(data, 0); |
8808a793 DW |
436 | if (data->ver_major < 2) |
437 | return; | |
bb15e7f2 | 438 | update_aem_energy_one(data, 1); |
8808a793 DW |
439 | } |
440 | ||
441 | /* Update all AEM1 sensors */ | |
442 | static void update_aem1_sensors(struct aem_data *data) | |
443 | { | |
444 | mutex_lock(&data->lock); | |
445 | if (time_before(jiffies, data->last_updated + REFRESH_INTERVAL) && | |
446 | data->valid) | |
447 | goto out; | |
448 | ||
449 | update_aem_energy(data); | |
450 | out: | |
451 | mutex_unlock(&data->lock); | |
452 | } | |
453 | ||
454 | /* Update all AEM2 sensors */ | |
455 | static void update_aem2_sensors(struct aem_data *data) | |
456 | { | |
457 | int i; | |
458 | ||
459 | mutex_lock(&data->lock); | |
460 | if (time_before(jiffies, data->last_updated + REFRESH_INTERVAL) && | |
461 | data->valid) | |
462 | goto out; | |
463 | ||
464 | update_aem_energy(data); | |
465 | aem_read_sensor(data, AEM_EXHAUST_ELEMENT, 0, &data->temp[0], 1); | |
466 | aem_read_sensor(data, AEM_EXHAUST_ELEMENT, 1, &data->temp[1], 1); | |
467 | ||
468 | for (i = POWER_CAP; i <= POWER_AUX; i++) | |
469 | aem_read_sensor(data, AEM_POWER_CAP_ELEMENT, i, | |
470 | &data->pcap[i], 2); | |
471 | out: | |
472 | mutex_unlock(&data->lock); | |
473 | } | |
474 | ||
475 | /* Delete an AEM instance */ | |
476 | static void aem_delete(struct aem_data *data) | |
477 | { | |
478 | list_del(&data->list); | |
479 | aem_remove_sensors(data); | |
da8ebe4e | 480 | kfree(data->rs_resp); |
8808a793 DW |
481 | hwmon_device_unregister(data->hwmon_dev); |
482 | ipmi_destroy_user(data->ipmi.user); | |
95de3b25 | 483 | platform_set_drvdata(data->pdev, NULL); |
8808a793 | 484 | platform_device_unregister(data->pdev); |
65807044 | 485 | ida_simple_remove(&aem_ida, data->id); |
8808a793 DW |
486 | kfree(data); |
487 | } | |
488 | ||
489 | /* Probe functions for AEM1 devices */ | |
490 | ||
491 | /* Retrieve version and module handle for an AEM1 instance */ | |
492 | static int aem_find_aem1_count(struct aem_ipmi_data *data) | |
493 | { | |
494 | int res; | |
495 | struct aem_find_firmware_req ff_req; | |
496 | struct aem_find_firmware_resp ff_resp; | |
497 | ||
498 | ff_req.id = system_x_id; | |
499 | ff_req.index = 0; | |
500 | ff_req.module_type_id = cpu_to_be16(AEM_MODULE_TYPE_ID); | |
501 | ||
502 | data->tx_message.cmd = AEM_FIND_FW_CMD; | |
503 | data->tx_message.data = (char *)&ff_req; | |
504 | data->tx_message.data_len = sizeof(ff_req); | |
505 | ||
506 | data->rx_msg_data = &ff_resp; | |
507 | data->rx_msg_len = sizeof(ff_resp); | |
508 | ||
509 | aem_send_message(data); | |
510 | ||
511 | res = wait_for_completion_timeout(&data->read_complete, IPMI_TIMEOUT); | |
512 | if (!res) | |
513 | return -ETIMEDOUT; | |
514 | ||
515 | if (data->rx_result || data->rx_msg_len != sizeof(ff_resp) || | |
516 | memcmp(&ff_resp.id, &system_x_id, sizeof(system_x_id))) | |
517 | return -ENOENT; | |
518 | ||
519 | return ff_resp.num_instances; | |
520 | } | |
521 | ||
522 | /* Find and initialize one AEM1 instance */ | |
523 | static int aem_init_aem1_inst(struct aem_ipmi_data *probe, u8 module_handle) | |
524 | { | |
525 | struct aem_data *data; | |
526 | int i; | |
527 | int res = -ENOMEM; | |
528 | ||
529 | data = kzalloc(sizeof(*data), GFP_KERNEL); | |
530 | if (!data) | |
531 | return res; | |
532 | mutex_init(&data->lock); | |
533 | ||
534 | /* Copy instance data */ | |
535 | data->ver_major = 1; | |
536 | data->ver_minor = 0; | |
537 | data->module_handle = module_handle; | |
538 | for (i = 0; i < AEM1_NUM_ENERGY_REGS; i++) | |
539 | data->power_period[i] = AEM_DEFAULT_POWER_INTERVAL; | |
540 | ||
541 | /* Create sub-device for this fw instance */ | |
65807044 JC |
542 | data->id = ida_simple_get(&aem_ida, 0, 0, GFP_KERNEL); |
543 | if (data->id < 0) | |
8808a793 DW |
544 | goto id_err; |
545 | ||
546 | data->pdev = platform_device_alloc(DRVNAME, data->id); | |
547 | if (!data->pdev) | |
548 | goto dev_err; | |
fe2d5ffc | 549 | data->pdev->dev.driver = &aem_driver.driver; |
8808a793 DW |
550 | |
551 | res = platform_device_add(data->pdev); | |
552 | if (res) | |
553 | goto ipmi_err; | |
554 | ||
95de3b25 | 555 | platform_set_drvdata(data->pdev, data); |
8808a793 DW |
556 | |
557 | /* Set up IPMI interface */ | |
547a1c99 JD |
558 | res = aem_init_ipmi_data(&data->ipmi, probe->interface, |
559 | probe->bmc_device); | |
560 | if (res) | |
8808a793 DW |
561 | goto ipmi_err; |
562 | ||
563 | /* Register with hwmon */ | |
564 | data->hwmon_dev = hwmon_device_register(&data->pdev->dev); | |
8808a793 | 565 | if (IS_ERR(data->hwmon_dev)) { |
b55f3757 GR |
566 | dev_err(&data->pdev->dev, |
567 | "Unable to register hwmon device for IPMI interface %d\n", | |
8808a793 | 568 | probe->interface); |
547a1c99 | 569 | res = PTR_ERR(data->hwmon_dev); |
8808a793 DW |
570 | goto hwmon_reg_err; |
571 | } | |
572 | ||
573 | data->update = update_aem1_sensors; | |
da8ebe4e JD |
574 | data->rs_resp = kzalloc(sizeof(*(data->rs_resp)) + 8, GFP_KERNEL); |
575 | if (!data->rs_resp) { | |
576 | res = -ENOMEM; | |
577 | goto alloc_resp_err; | |
578 | } | |
8808a793 DW |
579 | |
580 | /* Find sensors */ | |
547a1c99 JD |
581 | res = aem1_find_sensors(data); |
582 | if (res) | |
8808a793 DW |
583 | goto sensor_err; |
584 | ||
585 | /* Add to our list of AEM devices */ | |
586 | list_add_tail(&data->list, &driver_data.aem_devices); | |
587 | ||
588 | dev_info(data->ipmi.bmc_device, "Found AEM v%d.%d at 0x%X\n", | |
589 | data->ver_major, data->ver_minor, | |
590 | data->module_handle); | |
591 | return 0; | |
592 | ||
593 | sensor_err: | |
da8ebe4e JD |
594 | kfree(data->rs_resp); |
595 | alloc_resp_err: | |
8808a793 DW |
596 | hwmon_device_unregister(data->hwmon_dev); |
597 | hwmon_reg_err: | |
598 | ipmi_destroy_user(data->ipmi.user); | |
599 | ipmi_err: | |
95de3b25 | 600 | platform_set_drvdata(data->pdev, NULL); |
8808a793 DW |
601 | platform_device_unregister(data->pdev); |
602 | dev_err: | |
65807044 | 603 | ida_simple_remove(&aem_ida, data->id); |
8808a793 DW |
604 | id_err: |
605 | kfree(data); | |
606 | ||
607 | return res; | |
608 | } | |
609 | ||
610 | /* Find and initialize all AEM1 instances */ | |
9d84c9e8 | 611 | static void aem_init_aem1(struct aem_ipmi_data *probe) |
8808a793 DW |
612 | { |
613 | int num, i, err; | |
614 | ||
615 | num = aem_find_aem1_count(probe); | |
616 | for (i = 0; i < num; i++) { | |
617 | err = aem_init_aem1_inst(probe, i); | |
618 | if (err) { | |
619 | dev_err(probe->bmc_device, | |
620 | "Error %d initializing AEM1 0x%X\n", | |
621 | err, i); | |
8808a793 DW |
622 | } |
623 | } | |
8808a793 DW |
624 | } |
625 | ||
626 | /* Probe functions for AEM2 devices */ | |
627 | ||
628 | /* Retrieve version and module handle for an AEM2 instance */ | |
629 | static int aem_find_aem2(struct aem_ipmi_data *data, | |
630 | struct aem_find_instance_resp *fi_resp, | |
631 | int instance_num) | |
632 | { | |
633 | int res; | |
634 | struct aem_find_instance_req fi_req; | |
635 | ||
636 | fi_req.id = system_x_id; | |
637 | fi_req.instance_number = instance_num; | |
638 | fi_req.module_type_id = cpu_to_be16(AEM_MODULE_TYPE_ID); | |
639 | ||
640 | data->tx_message.cmd = AEM_FW_INSTANCE_CMD; | |
641 | data->tx_message.data = (char *)&fi_req; | |
642 | data->tx_message.data_len = sizeof(fi_req); | |
643 | ||
644 | data->rx_msg_data = fi_resp; | |
645 | data->rx_msg_len = sizeof(*fi_resp); | |
646 | ||
647 | aem_send_message(data); | |
648 | ||
649 | res = wait_for_completion_timeout(&data->read_complete, IPMI_TIMEOUT); | |
650 | if (!res) | |
651 | return -ETIMEDOUT; | |
652 | ||
653 | if (data->rx_result || data->rx_msg_len != sizeof(*fi_resp) || | |
9c5413ea DW |
654 | memcmp(&fi_resp->id, &system_x_id, sizeof(system_x_id)) || |
655 | fi_resp->num_instances <= instance_num) | |
8808a793 DW |
656 | return -ENOENT; |
657 | ||
658 | return 0; | |
659 | } | |
660 | ||
661 | /* Find and initialize one AEM2 instance */ | |
662 | static int aem_init_aem2_inst(struct aem_ipmi_data *probe, | |
663 | struct aem_find_instance_resp *fi_resp) | |
664 | { | |
665 | struct aem_data *data; | |
666 | int i; | |
667 | int res = -ENOMEM; | |
668 | ||
669 | data = kzalloc(sizeof(*data), GFP_KERNEL); | |
670 | if (!data) | |
671 | return res; | |
672 | mutex_init(&data->lock); | |
673 | ||
674 | /* Copy instance data */ | |
675 | data->ver_major = fi_resp->major; | |
676 | data->ver_minor = fi_resp->minor; | |
677 | data->module_handle = fi_resp->module_handle; | |
678 | for (i = 0; i < AEM2_NUM_ENERGY_REGS; i++) | |
679 | data->power_period[i] = AEM_DEFAULT_POWER_INTERVAL; | |
680 | ||
681 | /* Create sub-device for this fw instance */ | |
65807044 JC |
682 | data->id = ida_simple_get(&aem_ida, 0, 0, GFP_KERNEL); |
683 | if (data->id < 0) | |
8808a793 DW |
684 | goto id_err; |
685 | ||
686 | data->pdev = platform_device_alloc(DRVNAME, data->id); | |
687 | if (!data->pdev) | |
688 | goto dev_err; | |
fe2d5ffc | 689 | data->pdev->dev.driver = &aem_driver.driver; |
8808a793 DW |
690 | |
691 | res = platform_device_add(data->pdev); | |
692 | if (res) | |
693 | goto ipmi_err; | |
694 | ||
95de3b25 | 695 | platform_set_drvdata(data->pdev, data); |
8808a793 DW |
696 | |
697 | /* Set up IPMI interface */ | |
547a1c99 JD |
698 | res = aem_init_ipmi_data(&data->ipmi, probe->interface, |
699 | probe->bmc_device); | |
700 | if (res) | |
8808a793 DW |
701 | goto ipmi_err; |
702 | ||
703 | /* Register with hwmon */ | |
704 | data->hwmon_dev = hwmon_device_register(&data->pdev->dev); | |
8808a793 | 705 | if (IS_ERR(data->hwmon_dev)) { |
b55f3757 GR |
706 | dev_err(&data->pdev->dev, |
707 | "Unable to register hwmon device for IPMI interface %d\n", | |
8808a793 | 708 | probe->interface); |
547a1c99 | 709 | res = PTR_ERR(data->hwmon_dev); |
8808a793 DW |
710 | goto hwmon_reg_err; |
711 | } | |
712 | ||
713 | data->update = update_aem2_sensors; | |
da8ebe4e JD |
714 | data->rs_resp = kzalloc(sizeof(*(data->rs_resp)) + 8, GFP_KERNEL); |
715 | if (!data->rs_resp) { | |
716 | res = -ENOMEM; | |
717 | goto alloc_resp_err; | |
718 | } | |
8808a793 DW |
719 | |
720 | /* Find sensors */ | |
547a1c99 JD |
721 | res = aem2_find_sensors(data); |
722 | if (res) | |
8808a793 DW |
723 | goto sensor_err; |
724 | ||
725 | /* Add to our list of AEM devices */ | |
726 | list_add_tail(&data->list, &driver_data.aem_devices); | |
727 | ||
728 | dev_info(data->ipmi.bmc_device, "Found AEM v%d.%d at 0x%X\n", | |
729 | data->ver_major, data->ver_minor, | |
730 | data->module_handle); | |
731 | return 0; | |
732 | ||
733 | sensor_err: | |
da8ebe4e JD |
734 | kfree(data->rs_resp); |
735 | alloc_resp_err: | |
8808a793 DW |
736 | hwmon_device_unregister(data->hwmon_dev); |
737 | hwmon_reg_err: | |
738 | ipmi_destroy_user(data->ipmi.user); | |
739 | ipmi_err: | |
95de3b25 | 740 | platform_set_drvdata(data->pdev, NULL); |
8808a793 DW |
741 | platform_device_unregister(data->pdev); |
742 | dev_err: | |
65807044 | 743 | ida_simple_remove(&aem_ida, data->id); |
8808a793 DW |
744 | id_err: |
745 | kfree(data); | |
746 | ||
747 | return res; | |
748 | } | |
749 | ||
750 | /* Find and initialize all AEM2 instances */ | |
9d84c9e8 | 751 | static void aem_init_aem2(struct aem_ipmi_data *probe) |
8808a793 DW |
752 | { |
753 | struct aem_find_instance_resp fi_resp; | |
754 | int err; | |
755 | int i = 0; | |
756 | ||
757 | while (!aem_find_aem2(probe, &fi_resp, i)) { | |
758 | if (fi_resp.major != 2) { | |
b55f3757 GR |
759 | dev_err(probe->bmc_device, |
760 | "Unknown AEM v%d; please report this to the maintainer.\n", | |
8808a793 DW |
761 | fi_resp.major); |
762 | i++; | |
763 | continue; | |
764 | } | |
765 | err = aem_init_aem2_inst(probe, &fi_resp); | |
766 | if (err) { | |
767 | dev_err(probe->bmc_device, | |
768 | "Error %d initializing AEM2 0x%X\n", | |
769 | err, fi_resp.module_handle); | |
8808a793 DW |
770 | } |
771 | i++; | |
772 | } | |
8808a793 DW |
773 | } |
774 | ||
775 | /* Probe a BMC for AEM firmware instances */ | |
776 | static void aem_register_bmc(int iface, struct device *dev) | |
777 | { | |
778 | struct aem_ipmi_data probe; | |
779 | ||
780 | if (aem_init_ipmi_data(&probe, iface, dev)) | |
781 | return; | |
782 | ||
783 | /* Ignore probe errors; they won't cause problems */ | |
784 | aem_init_aem1(&probe); | |
785 | aem_init_aem2(&probe); | |
786 | ||
787 | ipmi_destroy_user(probe.user); | |
788 | } | |
789 | ||
790 | /* Handle BMC deletion */ | |
791 | static void aem_bmc_gone(int iface) | |
792 | { | |
793 | struct aem_data *p1, *next1; | |
794 | ||
795 | list_for_each_entry_safe(p1, next1, &driver_data.aem_devices, list) | |
796 | if (p1->ipmi.interface == iface) | |
797 | aem_delete(p1); | |
798 | } | |
799 | ||
800 | /* sysfs support functions */ | |
801 | ||
802 | /* AEM device name */ | |
f6861c0e | 803 | static ssize_t name_show(struct device *dev, struct device_attribute *devattr, |
8808a793 DW |
804 | char *buf) |
805 | { | |
806 | struct aem_data *data = dev_get_drvdata(dev); | |
807 | ||
808 | return sprintf(buf, "%s%d\n", DRVNAME, data->ver_major); | |
809 | } | |
f6861c0e | 810 | static SENSOR_DEVICE_ATTR_RO(name, name, 0); |
8808a793 DW |
811 | |
812 | /* AEM device version */ | |
f6861c0e GR |
813 | static ssize_t version_show(struct device *dev, |
814 | struct device_attribute *devattr, char *buf) | |
8808a793 DW |
815 | { |
816 | struct aem_data *data = dev_get_drvdata(dev); | |
817 | ||
818 | return sprintf(buf, "%d.%d\n", data->ver_major, data->ver_minor); | |
819 | } | |
f6861c0e | 820 | static SENSOR_DEVICE_ATTR_RO(version, version, 0); |
8808a793 DW |
821 | |
822 | /* Display power use */ | |
823 | static ssize_t aem_show_power(struct device *dev, | |
824 | struct device_attribute *devattr, | |
825 | char *buf) | |
826 | { | |
827 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
828 | struct aem_data *data = dev_get_drvdata(dev); | |
829 | u64 before, after, delta, time; | |
830 | signed long leftover; | |
8808a793 DW |
831 | |
832 | mutex_lock(&data->lock); | |
bb15e7f2 | 833 | update_aem_energy_one(data, attr->index); |
d659f9b1 | 834 | time = ktime_get_ns(); |
8808a793 DW |
835 | before = data->energy[attr->index]; |
836 | ||
837 | leftover = schedule_timeout_interruptible( | |
838 | msecs_to_jiffies(data->power_period[attr->index]) | |
839 | ); | |
840 | if (leftover) { | |
841 | mutex_unlock(&data->lock); | |
842 | return 0; | |
843 | } | |
844 | ||
bb15e7f2 | 845 | update_aem_energy_one(data, attr->index); |
d659f9b1 | 846 | time = ktime_get_ns() - time; |
8808a793 DW |
847 | after = data->energy[attr->index]; |
848 | mutex_unlock(&data->lock); | |
849 | ||
8808a793 DW |
850 | delta = (after - before) * UJ_PER_MJ; |
851 | ||
852 | return sprintf(buf, "%llu\n", | |
853 | (unsigned long long)div64_u64(delta * NSEC_PER_SEC, time)); | |
854 | } | |
855 | ||
856 | /* Display energy use */ | |
857 | static ssize_t aem_show_energy(struct device *dev, | |
858 | struct device_attribute *devattr, | |
859 | char *buf) | |
860 | { | |
861 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
862 | struct aem_data *a = dev_get_drvdata(dev); | |
bb15e7f2 DW |
863 | mutex_lock(&a->lock); |
864 | update_aem_energy_one(a, attr->index); | |
865 | mutex_unlock(&a->lock); | |
8808a793 DW |
866 | |
867 | return sprintf(buf, "%llu\n", | |
868 | (unsigned long long)a->energy[attr->index] * 1000); | |
869 | } | |
870 | ||
871 | /* Display power interval registers */ | |
872 | static ssize_t aem_show_power_period(struct device *dev, | |
873 | struct device_attribute *devattr, | |
874 | char *buf) | |
875 | { | |
876 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
877 | struct aem_data *a = dev_get_drvdata(dev); | |
878 | a->update(a); | |
879 | ||
880 | return sprintf(buf, "%lu\n", a->power_period[attr->index]); | |
881 | } | |
882 | ||
883 | /* Set power interval registers */ | |
884 | static ssize_t aem_set_power_period(struct device *dev, | |
885 | struct device_attribute *devattr, | |
886 | const char *buf, size_t count) | |
887 | { | |
888 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
889 | struct aem_data *a = dev_get_drvdata(dev); | |
890 | unsigned long temp; | |
891 | int res; | |
892 | ||
179c4fdb | 893 | res = kstrtoul(buf, 10, &temp); |
8808a793 DW |
894 | if (res) |
895 | return res; | |
896 | ||
897 | if (temp < AEM_MIN_POWER_INTERVAL) | |
898 | return -EINVAL; | |
899 | ||
900 | mutex_lock(&a->lock); | |
901 | a->power_period[attr->index] = temp; | |
902 | mutex_unlock(&a->lock); | |
903 | ||
904 | return count; | |
905 | } | |
906 | ||
907 | /* Discover sensors on an AEM device */ | |
908 | static int aem_register_sensors(struct aem_data *data, | |
449278d9 JL |
909 | const struct aem_ro_sensor_template *ro, |
910 | const struct aem_rw_sensor_template *rw) | |
8808a793 DW |
911 | { |
912 | struct device *dev = &data->pdev->dev; | |
913 | struct sensor_device_attribute *sensors = data->sensors; | |
914 | int err; | |
915 | ||
916 | /* Set up read-only sensors */ | |
917 | while (ro->label) { | |
3cdb2052 | 918 | sysfs_attr_init(&sensors->dev_attr.attr); |
8808a793 | 919 | sensors->dev_attr.attr.name = ro->label; |
f6861c0e | 920 | sensors->dev_attr.attr.mode = 0444; |
8808a793 DW |
921 | sensors->dev_attr.show = ro->show; |
922 | sensors->index = ro->index; | |
923 | ||
924 | err = device_create_file(dev, &sensors->dev_attr); | |
925 | if (err) { | |
926 | sensors->dev_attr.attr.name = NULL; | |
927 | goto error; | |
928 | } | |
929 | sensors++; | |
930 | ro++; | |
931 | } | |
932 | ||
933 | /* Set up read-write sensors */ | |
934 | while (rw->label) { | |
3cdb2052 | 935 | sysfs_attr_init(&sensors->dev_attr.attr); |
8808a793 | 936 | sensors->dev_attr.attr.name = rw->label; |
f6861c0e | 937 | sensors->dev_attr.attr.mode = 0644; |
8808a793 DW |
938 | sensors->dev_attr.show = rw->show; |
939 | sensors->dev_attr.store = rw->set; | |
940 | sensors->index = rw->index; | |
941 | ||
942 | err = device_create_file(dev, &sensors->dev_attr); | |
943 | if (err) { | |
944 | sensors->dev_attr.attr.name = NULL; | |
945 | goto error; | |
946 | } | |
947 | sensors++; | |
948 | rw++; | |
949 | } | |
950 | ||
951 | err = device_create_file(dev, &sensor_dev_attr_name.dev_attr); | |
952 | if (err) | |
953 | goto error; | |
954 | err = device_create_file(dev, &sensor_dev_attr_version.dev_attr); | |
955 | return err; | |
956 | ||
957 | error: | |
958 | aem_remove_sensors(data); | |
959 | return err; | |
960 | } | |
961 | ||
962 | /* sysfs support functions for AEM2 sensors */ | |
963 | ||
964 | /* Display temperature use */ | |
965 | static ssize_t aem2_show_temp(struct device *dev, | |
966 | struct device_attribute *devattr, | |
967 | char *buf) | |
968 | { | |
969 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
970 | struct aem_data *a = dev_get_drvdata(dev); | |
971 | a->update(a); | |
972 | ||
973 | return sprintf(buf, "%u\n", a->temp[attr->index] * 1000); | |
974 | } | |
975 | ||
976 | /* Display power-capping registers */ | |
977 | static ssize_t aem2_show_pcap_value(struct device *dev, | |
978 | struct device_attribute *devattr, | |
979 | char *buf) | |
980 | { | |
981 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
982 | struct aem_data *a = dev_get_drvdata(dev); | |
983 | a->update(a); | |
984 | ||
985 | return sprintf(buf, "%u\n", a->pcap[attr->index] * 100000); | |
986 | } | |
987 | ||
988 | /* Remove sensors attached to an AEM device */ | |
989 | static void aem_remove_sensors(struct aem_data *data) | |
990 | { | |
991 | int i; | |
992 | ||
993 | for (i = 0; i < AEM_NUM_SENSORS; i++) { | |
994 | if (!data->sensors[i].dev_attr.attr.name) | |
995 | continue; | |
996 | device_remove_file(&data->pdev->dev, | |
997 | &data->sensors[i].dev_attr); | |
998 | } | |
999 | ||
1000 | device_remove_file(&data->pdev->dev, | |
1001 | &sensor_dev_attr_name.dev_attr); | |
1002 | device_remove_file(&data->pdev->dev, | |
1003 | &sensor_dev_attr_version.dev_attr); | |
1004 | } | |
1005 | ||
1006 | /* Sensor probe functions */ | |
1007 | ||
1008 | /* Description of AEM1 sensors */ | |
449278d9 | 1009 | static const struct aem_ro_sensor_template aem1_ro_sensors[] = { |
8808a793 DW |
1010 | {"energy1_input", aem_show_energy, 0}, |
1011 | {"power1_average", aem_show_power, 0}, | |
1012 | {NULL, NULL, 0}, | |
1013 | }; | |
1014 | ||
449278d9 | 1015 | static const struct aem_rw_sensor_template aem1_rw_sensors[] = { |
8808a793 DW |
1016 | {"power1_average_interval", aem_show_power_period, aem_set_power_period, 0}, |
1017 | {NULL, NULL, NULL, 0}, | |
1018 | }; | |
1019 | ||
1020 | /* Description of AEM2 sensors */ | |
449278d9 | 1021 | static const struct aem_ro_sensor_template aem2_ro_sensors[] = { |
8808a793 DW |
1022 | {"energy1_input", aem_show_energy, 0}, |
1023 | {"energy2_input", aem_show_energy, 1}, | |
1024 | {"power1_average", aem_show_power, 0}, | |
1025 | {"power2_average", aem_show_power, 1}, | |
1026 | {"temp1_input", aem2_show_temp, 0}, | |
1027 | {"temp2_input", aem2_show_temp, 1}, | |
1028 | ||
1029 | {"power4_average", aem2_show_pcap_value, POWER_CAP_MAX_HOTPLUG}, | |
1030 | {"power5_average", aem2_show_pcap_value, POWER_CAP_MAX}, | |
1031 | {"power6_average", aem2_show_pcap_value, POWER_CAP_MIN_WARNING}, | |
1032 | {"power7_average", aem2_show_pcap_value, POWER_CAP_MIN}, | |
1033 | ||
0910b28e | 1034 | {"power3_average", aem2_show_pcap_value, POWER_AUX}, |
8808a793 DW |
1035 | {"power_cap", aem2_show_pcap_value, POWER_CAP}, |
1036 | {NULL, NULL, 0}, | |
1037 | }; | |
1038 | ||
449278d9 | 1039 | static const struct aem_rw_sensor_template aem2_rw_sensors[] = { |
8808a793 DW |
1040 | {"power1_average_interval", aem_show_power_period, aem_set_power_period, 0}, |
1041 | {"power2_average_interval", aem_show_power_period, aem_set_power_period, 1}, | |
1042 | {NULL, NULL, NULL, 0}, | |
1043 | }; | |
1044 | ||
1045 | /* Set up AEM1 sensor attrs */ | |
1046 | static int aem1_find_sensors(struct aem_data *data) | |
1047 | { | |
1048 | return aem_register_sensors(data, aem1_ro_sensors, aem1_rw_sensors); | |
1049 | } | |
1050 | ||
1051 | /* Set up AEM2 sensor attrs */ | |
1052 | static int aem2_find_sensors(struct aem_data *data) | |
1053 | { | |
1054 | return aem_register_sensors(data, aem2_ro_sensors, aem2_rw_sensors); | |
1055 | } | |
1056 | ||
1057 | /* Module init/exit routines */ | |
1058 | ||
1059 | static int __init aem_init(void) | |
1060 | { | |
1061 | int res; | |
1062 | ||
fe2d5ffc | 1063 | res = driver_register(&aem_driver.driver); |
8808a793 | 1064 | if (res) { |
55d705cc | 1065 | pr_err("Can't register aem driver\n"); |
8808a793 DW |
1066 | return res; |
1067 | } | |
1068 | ||
1069 | res = ipmi_smi_watcher_register(&driver_data.bmc_events); | |
1070 | if (res) | |
1071 | goto ipmi_reg_err; | |
1072 | return 0; | |
1073 | ||
1074 | ipmi_reg_err: | |
fe2d5ffc | 1075 | driver_unregister(&aem_driver.driver); |
8808a793 DW |
1076 | return res; |
1077 | ||
1078 | } | |
1079 | ||
1080 | static void __exit aem_exit(void) | |
1081 | { | |
1082 | struct aem_data *p1, *next1; | |
1083 | ||
1084 | ipmi_smi_watcher_unregister(&driver_data.bmc_events); | |
fe2d5ffc | 1085 | driver_unregister(&aem_driver.driver); |
8808a793 DW |
1086 | list_for_each_entry_safe(p1, next1, &driver_data.aem_devices, list) |
1087 | aem_delete(p1); | |
1088 | } | |
1089 | ||
5407e051 | 1090 | MODULE_AUTHOR("Darrick J. Wong <darrick.wong@oracle.com>"); |
eb93b7df | 1091 | MODULE_DESCRIPTION("IBM AEM power/temp/energy sensor driver"); |
8808a793 DW |
1092 | MODULE_LICENSE("GPL"); |
1093 | ||
1094 | module_init(aem_init); | |
1095 | module_exit(aem_exit); | |
21d93c14 DW |
1096 | |
1097 | MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3350-*"); | |
1098 | MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3550-*"); | |
1099 | MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3650-*"); | |
1100 | MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3655-*"); | |
1101 | MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3755-*"); | |
1102 | MODULE_ALIAS("dmi:bvnIBM:*:pnIBM3850M2/x3950M2-*"); | |
8070408b | 1103 | MODULE_ALIAS("dmi:bvnIBM:*:pnIBMBladeHC10-*"); |