1 | /* $NetBSD: ipmi.c,v 1.64 2016/07/07 06:55:40 msaitoh Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 2006 Manuel Bouyer. |
5 | * |
6 | * Redistribution and use in source and binary forms, with or without |
7 | * modification, are permitted provided that the following conditions |
8 | * are met: |
9 | * 1. Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * 2. Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
14 | * |
15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
16 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
17 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
18 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
19 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
20 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
21 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
22 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
24 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
25 | * |
26 | */ |
27 | |
28 | /* |
29 | * Copyright (c) 2005 Jordan Hargrave |
30 | * All rights reserved. |
31 | * |
32 | * Redistribution and use in source and binary forms, with or without |
33 | * modification, are permitted provided that the following conditions |
34 | * are met: |
35 | * 1. Redistributions of source code must retain the above copyright |
36 | * notice, this list of conditions and the following disclaimer. |
37 | * 2. Redistributions in binary form must reproduce the above copyright |
38 | * notice, this list of conditions and the following disclaimer in the |
39 | * documentation and/or other materials provided with the distribution. |
40 | * |
41 | * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND |
42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR |
45 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
51 | * SUCH DAMAGE. |
52 | */ |
53 | |
54 | #include <sys/cdefs.h> |
55 | __KERNEL_RCSID(0, "$NetBSD: ipmi.c,v 1.64 2016/07/07 06:55:40 msaitoh Exp $" ); |
56 | |
57 | #include <sys/types.h> |
58 | #include <sys/param.h> |
59 | #include <sys/systm.h> |
60 | #include <sys/kernel.h> |
61 | #include <sys/device.h> |
62 | #include <sys/extent.h> |
63 | #include <sys/callout.h> |
64 | #include <sys/envsys.h> |
65 | #include <sys/malloc.h> |
66 | #include <sys/kthread.h> |
67 | #include <sys/bus.h> |
68 | #include <sys/intr.h> |
69 | |
70 | #include <x86/smbiosvar.h> |
71 | |
72 | #include <dev/isa/isareg.h> |
73 | #include <dev/isa/isavar.h> |
74 | |
75 | #include <x86/ipmivar.h> |
76 | |
77 | #include <uvm/uvm_extern.h> |
78 | |
79 | struct ipmi_sensor { |
80 | uint8_t *i_sdr; |
81 | int i_num; |
82 | int i_stype; |
83 | int i_etype; |
84 | char i_envdesc[64]; |
85 | int i_envtype; /* envsys compatible type */ |
86 | int i_envnum; /* envsys index */ |
87 | sysmon_envsys_lim_t i_limits, i_deflims; |
88 | uint32_t i_props, i_defprops; |
89 | SLIST_ENTRY(ipmi_sensor) i_list; |
90 | int32_t i_prevval; /* feed rnd source on change */ |
91 | }; |
92 | |
93 | int ipmi_nintr; |
94 | int ipmi_dbg = 0; |
95 | int ipmi_enabled = 0; |
96 | |
97 | #define SENSOR_REFRESH_RATE (hz / 2) |
98 | |
99 | #define SMBIOS_TYPE_IPMI 0x26 |
100 | |
101 | /* |
102 | * Format of SMBIOS IPMI Flags |
103 | * |
104 | * bit0: interrupt trigger mode (1=level, 0=edge) |
105 | * bit1: interrupt polarity (1=active high, 0=active low) |
106 | * bit2: reserved |
107 | * bit3: address LSB (1=odd,0=even) |
108 | * bit4: interrupt (1=specified, 0=not specified) |
109 | * bit5: reserved |
110 | * bit6/7: register spacing (1,4,2,err) |
111 | */ |
112 | #define SMIPMI_FLAG_IRQLVL (1L << 0) |
113 | #define SMIPMI_FLAG_IRQEN (1L << 3) |
114 | #define SMIPMI_FLAG_ODDOFFSET (1L << 4) |
115 | #define SMIPMI_FLAG_IFSPACING(x) (((x)>>6)&0x3) |
116 | #define IPMI_IOSPACING_BYTE 0 |
117 | #define IPMI_IOSPACING_WORD 2 |
118 | #define IPMI_IOSPACING_DWORD 1 |
119 | |
120 | #define IPMI_BTMSG_LEN 0 |
121 | #define IPMI_BTMSG_NFLN 1 |
122 | #define IPMI_BTMSG_SEQ 2 |
123 | #define IPMI_BTMSG_CMD 3 |
124 | #define IPMI_BTMSG_CCODE 4 |
125 | #define IPMI_BTMSG_DATASND 4 |
126 | #define IPMI_BTMSG_DATARCV 5 |
127 | |
128 | #define IPMI_MSG_NFLN 0 |
129 | #define IPMI_MSG_CMD 1 |
130 | #define IPMI_MSG_CCODE 2 |
131 | #define IPMI_MSG_DATASND 2 |
132 | #define IPMI_MSG_DATARCV 3 |
133 | |
134 | #define IPMI_SENSOR_TYPE_TEMP 0x0101 |
135 | #define IPMI_SENSOR_TYPE_VOLT 0x0102 |
136 | #define IPMI_SENSOR_TYPE_FAN 0x0104 |
137 | #define IPMI_SENSOR_TYPE_INTRUSION 0x6F05 |
138 | #define IPMI_SENSOR_TYPE_PWRSUPPLY 0x6F08 |
139 | |
140 | #define IPMI_NAME_UNICODE 0x00 |
141 | #define IPMI_NAME_BCDPLUS 0x01 |
142 | #define IPMI_NAME_ASCII6BIT 0x02 |
143 | #define IPMI_NAME_ASCII8BIT 0x03 |
144 | |
145 | #define IPMI_ENTITY_PWRSUPPLY 0x0A |
146 | |
147 | #define IPMI_SENSOR_SCANNING_ENABLED (1L << 6) |
148 | #define IPMI_SENSOR_UNAVAILABLE (1L << 5) |
149 | #define IPMI_INVALID_SENSOR_P(x) \ |
150 | (((x) & (IPMI_SENSOR_SCANNING_ENABLED|IPMI_SENSOR_UNAVAILABLE)) \ |
151 | != IPMI_SENSOR_SCANNING_ENABLED) |
152 | |
153 | #define IPMI_SDR_TYPEFULL 1 |
154 | #define IPMI_SDR_TYPECOMPACT 2 |
155 | |
156 | #define byteof(x) ((x) >> 3) |
157 | #define bitof(x) (1L << ((x) & 0x7)) |
158 | #define TB(b,m) (data[2+byteof(b)] & bitof(b)) |
159 | |
160 | #define dbg_printf(lvl, fmt...) \ |
161 | if (ipmi_dbg >= lvl) \ |
162 | printf(fmt); |
163 | #define dbg_dump(lvl, msg, len, buf) \ |
164 | if (len && ipmi_dbg >= lvl) \ |
165 | dumpb(msg, len, (const uint8_t *)(buf)); |
166 | |
167 | long signextend(unsigned long, int); |
168 | |
169 | SLIST_HEAD(ipmi_sensors_head, ipmi_sensor); |
170 | struct ipmi_sensors_head ipmi_sensor_list = |
171 | SLIST_HEAD_INITIALIZER(&ipmi_sensor_list); |
172 | |
173 | void dumpb(const char *, int, const uint8_t *); |
174 | |
175 | int read_sensor(struct ipmi_softc *, struct ipmi_sensor *); |
176 | int add_sdr_sensor(struct ipmi_softc *, uint8_t *); |
177 | int get_sdr_partial(struct ipmi_softc *, uint16_t, uint16_t, |
178 | uint8_t, uint8_t, void *, uint16_t *); |
179 | int get_sdr(struct ipmi_softc *, uint16_t, uint16_t *); |
180 | |
181 | char *ipmi_buf_acquire(struct ipmi_softc *, size_t); |
182 | void ipmi_buf_release(struct ipmi_softc *, char *); |
183 | int ipmi_sendcmd(struct ipmi_softc *, int, int, int, int, int, const void*); |
184 | int ipmi_recvcmd(struct ipmi_softc *, int, int *, void *); |
185 | void ipmi_delay(struct ipmi_softc *, int); |
186 | |
187 | int ipmi_watchdog_setmode(struct sysmon_wdog *); |
188 | int ipmi_watchdog_tickle(struct sysmon_wdog *); |
189 | void ipmi_dotickle(struct ipmi_softc *); |
190 | |
191 | int ipmi_intr(void *); |
192 | int ipmi_match(device_t, cfdata_t, void *); |
193 | void ipmi_attach(device_t, device_t, void *); |
194 | static int ipmi_detach(device_t, int); |
195 | |
196 | long ipmi_convert(uint8_t, struct sdrtype1 *, long); |
197 | void ipmi_sensor_name(char *, int, uint8_t, uint8_t *); |
198 | |
199 | /* BMC Helper Functions */ |
200 | uint8_t bmc_read(struct ipmi_softc *, int); |
201 | void bmc_write(struct ipmi_softc *, int, uint8_t); |
202 | int bmc_io_wait(struct ipmi_softc *, int, uint8_t, uint8_t, const char *); |
203 | int bmc_io_wait_spin(struct ipmi_softc *, int, uint8_t, uint8_t); |
204 | int bmc_io_wait_sleep(struct ipmi_softc *, int, uint8_t, uint8_t); |
205 | |
206 | void *bt_buildmsg(struct ipmi_softc *, int, int, int, const void *, int *); |
207 | void *cmn_buildmsg(struct ipmi_softc *, int, int, int, const void *, int *); |
208 | |
209 | int getbits(uint8_t *, int, int); |
210 | int ipmi_sensor_type(int, int, int); |
211 | |
212 | void ipmi_smbios_probe(struct smbios_ipmi *, struct ipmi_attach_args *); |
213 | void ipmi_refresh_sensors(struct ipmi_softc *); |
214 | int ipmi_map_regs(struct ipmi_softc *, struct ipmi_attach_args *); |
215 | void ipmi_unmap_regs(struct ipmi_softc *); |
216 | |
217 | void *scan_sig(long, long, int, int, const void *); |
218 | |
219 | int32_t ipmi_convert_sensor(uint8_t *, struct ipmi_sensor *); |
220 | void ipmi_set_limits(struct sysmon_envsys *, envsys_data_t *, |
221 | sysmon_envsys_lim_t *, uint32_t *); |
222 | void ipmi_get_limits(struct sysmon_envsys *, envsys_data_t *, |
223 | sysmon_envsys_lim_t *, uint32_t *); |
224 | void ipmi_get_sensor_limits(struct ipmi_softc *, struct ipmi_sensor *, |
225 | sysmon_envsys_lim_t *, uint32_t *); |
226 | int ipmi_sensor_status(struct ipmi_softc *, struct ipmi_sensor *, |
227 | envsys_data_t *, uint8_t *); |
228 | |
229 | int add_child_sensors(struct ipmi_softc *, uint8_t *, int, int, int, |
230 | int, int, int, const char *); |
231 | |
232 | bool ipmi_suspend(device_t, const pmf_qual_t *); |
233 | |
234 | struct ipmi_if kcs_if = { |
235 | "KCS" , |
236 | IPMI_IF_KCS_NREGS, |
237 | cmn_buildmsg, |
238 | kcs_sendmsg, |
239 | kcs_recvmsg, |
240 | kcs_reset, |
241 | kcs_probe, |
242 | }; |
243 | |
244 | struct ipmi_if smic_if = { |
245 | "SMIC" , |
246 | IPMI_IF_SMIC_NREGS, |
247 | cmn_buildmsg, |
248 | smic_sendmsg, |
249 | smic_recvmsg, |
250 | smic_reset, |
251 | smic_probe, |
252 | }; |
253 | |
254 | struct ipmi_if bt_if = { |
255 | "BT" , |
256 | IPMI_IF_BT_NREGS, |
257 | bt_buildmsg, |
258 | bt_sendmsg, |
259 | bt_recvmsg, |
260 | bt_reset, |
261 | bt_probe, |
262 | }; |
263 | |
264 | struct ipmi_if *ipmi_get_if(int); |
265 | |
266 | struct ipmi_if * |
267 | ipmi_get_if(int iftype) |
268 | { |
269 | switch (iftype) { |
270 | case IPMI_IF_KCS: |
271 | return (&kcs_if); |
272 | case IPMI_IF_SMIC: |
273 | return (&smic_if); |
274 | case IPMI_IF_BT: |
275 | return (&bt_if); |
276 | } |
277 | |
278 | return (NULL); |
279 | } |
280 | |
281 | /* |
282 | * BMC Helper Functions |
283 | */ |
284 | uint8_t |
285 | bmc_read(struct ipmi_softc *sc, int offset) |
286 | { |
287 | return (bus_space_read_1(sc->sc_iot, sc->sc_ioh, |
288 | offset * sc->sc_if_iospacing)); |
289 | } |
290 | |
291 | void |
292 | bmc_write(struct ipmi_softc *sc, int offset, uint8_t val) |
293 | { |
294 | bus_space_write_1(sc->sc_iot, sc->sc_ioh, |
295 | offset * sc->sc_if_iospacing, val); |
296 | } |
297 | |
298 | int |
299 | bmc_io_wait_sleep(struct ipmi_softc *sc, int offset, uint8_t mask, |
300 | uint8_t value) |
301 | { |
302 | int retries; |
303 | uint8_t v; |
304 | |
305 | KASSERT(mutex_owned(&sc->sc_cmd_mtx)); |
306 | |
307 | for (retries = 0; retries < sc->sc_max_retries; retries++) { |
308 | v = bmc_read(sc, offset); |
309 | if ((v & mask) == value) |
310 | return v; |
311 | mutex_enter(&sc->sc_sleep_mtx); |
312 | cv_timedwait(&sc->sc_cmd_sleep, &sc->sc_sleep_mtx, 1); |
313 | mutex_exit(&sc->sc_sleep_mtx); |
314 | } |
315 | return -1; |
316 | } |
317 | |
318 | int |
319 | bmc_io_wait(struct ipmi_softc *sc, int offset, uint8_t mask, uint8_t value, |
320 | const char *lbl) |
321 | { |
322 | int v; |
323 | |
324 | v = bmc_io_wait_spin(sc, offset, mask, value); |
325 | if (cold || v != -1) |
326 | return v; |
327 | |
328 | return bmc_io_wait_sleep(sc, offset, mask, value); |
329 | } |
330 | |
331 | int |
332 | bmc_io_wait_spin(struct ipmi_softc *sc, int offset, uint8_t mask, |
333 | uint8_t value) |
334 | { |
335 | uint8_t v; |
336 | int count = cold ? 15000 : 500; |
337 | /* ~us */ |
338 | |
339 | while (count--) { |
340 | v = bmc_read(sc, offset); |
341 | if ((v & mask) == value) |
342 | return v; |
343 | |
344 | delay(1); |
345 | } |
346 | |
347 | return (-1); |
348 | |
349 | } |
350 | |
351 | #define NETFN_LUN(nf,ln) (((nf) << 2) | ((ln) & 0x3)) |
352 | |
353 | /* |
354 | * BT interface |
355 | */ |
356 | #define _BT_CTRL_REG 0 |
357 | #define BT_CLR_WR_PTR (1L << 0) |
358 | #define BT_CLR_RD_PTR (1L << 1) |
359 | #define BT_HOST2BMC_ATN (1L << 2) |
360 | #define BT_BMC2HOST_ATN (1L << 3) |
361 | #define BT_EVT_ATN (1L << 4) |
362 | #define BT_HOST_BUSY (1L << 6) |
363 | #define BT_BMC_BUSY (1L << 7) |
364 | |
365 | #define BT_READY (BT_HOST_BUSY|BT_HOST2BMC_ATN|BT_BMC2HOST_ATN) |
366 | |
367 | #define _BT_DATAIN_REG 1 |
368 | #define _BT_DATAOUT_REG 1 |
369 | |
370 | #define _BT_INTMASK_REG 2 |
371 | #define BT_IM_HIRQ_PEND (1L << 1) |
372 | #define BT_IM_SCI_EN (1L << 2) |
373 | #define BT_IM_SMI_EN (1L << 3) |
374 | #define BT_IM_NMI2SMI (1L << 4) |
375 | |
376 | int bt_read(struct ipmi_softc *, int); |
377 | int bt_write(struct ipmi_softc *, int, uint8_t); |
378 | |
379 | int |
380 | bt_read(struct ipmi_softc *sc, int reg) |
381 | { |
382 | return bmc_read(sc, reg); |
383 | } |
384 | |
385 | int |
386 | bt_write(struct ipmi_softc *sc, int reg, uint8_t data) |
387 | { |
388 | if (bmc_io_wait(sc, _BT_CTRL_REG, BT_BMC_BUSY, 0, "bt_write" ) < 0) |
389 | return (-1); |
390 | |
391 | bmc_write(sc, reg, data); |
392 | return (0); |
393 | } |
394 | |
395 | int |
396 | bt_sendmsg(struct ipmi_softc *sc, int len, const uint8_t *data) |
397 | { |
398 | int i; |
399 | |
400 | bt_write(sc, _BT_CTRL_REG, BT_CLR_WR_PTR); |
401 | for (i = 0; i < len; i++) |
402 | bt_write(sc, _BT_DATAOUT_REG, data[i]); |
403 | |
404 | bt_write(sc, _BT_CTRL_REG, BT_HOST2BMC_ATN); |
405 | if (bmc_io_wait(sc, _BT_CTRL_REG, BT_HOST2BMC_ATN | BT_BMC_BUSY, 0, |
406 | "bt_sendwait" ) < 0) |
407 | return (-1); |
408 | |
409 | return (0); |
410 | } |
411 | |
412 | int |
413 | bt_recvmsg(struct ipmi_softc *sc, int maxlen, int *rxlen, uint8_t *data) |
414 | { |
415 | uint8_t len, v, i; |
416 | |
417 | if (bmc_io_wait(sc, _BT_CTRL_REG, BT_BMC2HOST_ATN, BT_BMC2HOST_ATN, |
418 | "bt_recvwait" ) < 0) |
419 | return (-1); |
420 | |
421 | bt_write(sc, _BT_CTRL_REG, BT_HOST_BUSY); |
422 | bt_write(sc, _BT_CTRL_REG, BT_BMC2HOST_ATN); |
423 | bt_write(sc, _BT_CTRL_REG, BT_CLR_RD_PTR); |
424 | len = bt_read(sc, _BT_DATAIN_REG); |
425 | for (i = IPMI_BTMSG_NFLN; i <= len; i++) { |
426 | v = bt_read(sc, _BT_DATAIN_REG); |
427 | if (i != IPMI_BTMSG_SEQ) |
428 | *(data++) = v; |
429 | } |
430 | bt_write(sc, _BT_CTRL_REG, BT_HOST_BUSY); |
431 | *rxlen = len - 1; |
432 | |
433 | return (0); |
434 | } |
435 | |
436 | int |
437 | bt_reset(struct ipmi_softc *sc) |
438 | { |
439 | return (-1); |
440 | } |
441 | |
442 | int |
443 | bt_probe(struct ipmi_softc *sc) |
444 | { |
445 | uint8_t rv; |
446 | |
447 | rv = bmc_read(sc, _BT_CTRL_REG); |
448 | rv &= BT_HOST_BUSY; |
449 | rv |= BT_CLR_WR_PTR|BT_CLR_RD_PTR|BT_BMC2HOST_ATN|BT_HOST2BMC_ATN; |
450 | bmc_write(sc, _BT_CTRL_REG, rv); |
451 | |
452 | rv = bmc_read(sc, _BT_INTMASK_REG); |
453 | rv &= BT_IM_SCI_EN|BT_IM_SMI_EN|BT_IM_NMI2SMI; |
454 | rv |= BT_IM_HIRQ_PEND; |
455 | bmc_write(sc, _BT_INTMASK_REG, rv); |
456 | |
457 | #if 0 |
458 | printf("bt_probe: %2x\n" , v); |
459 | printf(" WR : %2x\n" , v & BT_CLR_WR_PTR); |
460 | printf(" RD : %2x\n" , v & BT_CLR_RD_PTR); |
461 | printf(" H2B : %2x\n" , v & BT_HOST2BMC_ATN); |
462 | printf(" B2H : %2x\n" , v & BT_BMC2HOST_ATN); |
463 | printf(" EVT : %2x\n" , v & BT_EVT_ATN); |
464 | printf(" HBSY : %2x\n" , v & BT_HOST_BUSY); |
465 | printf(" BBSY : %2x\n" , v & BT_BMC_BUSY); |
466 | #endif |
467 | return (0); |
468 | } |
469 | |
470 | /* |
471 | * SMIC interface |
472 | */ |
473 | #define _SMIC_DATAIN_REG 0 |
474 | #define _SMIC_DATAOUT_REG 0 |
475 | |
476 | #define _SMIC_CTRL_REG 1 |
477 | #define SMS_CC_GET_STATUS 0x40 |
478 | #define SMS_CC_START_TRANSFER 0x41 |
479 | #define SMS_CC_NEXT_TRANSFER 0x42 |
480 | #define SMS_CC_END_TRANSFER 0x43 |
481 | #define SMS_CC_START_RECEIVE 0x44 |
482 | #define SMS_CC_NEXT_RECEIVE 0x45 |
483 | #define SMS_CC_END_RECEIVE 0x46 |
484 | #define SMS_CC_TRANSFER_ABORT 0x47 |
485 | |
486 | #define SMS_SC_READY 0xc0 |
487 | #define SMS_SC_WRITE_START 0xc1 |
488 | #define SMS_SC_WRITE_NEXT 0xc2 |
489 | #define SMS_SC_WRITE_END 0xc3 |
490 | #define SMS_SC_READ_START 0xc4 |
491 | #define SMS_SC_READ_NEXT 0xc5 |
492 | #define SMS_SC_READ_END 0xc6 |
493 | |
494 | #define _SMIC_FLAG_REG 2 |
495 | #define SMIC_BUSY (1L << 0) |
496 | #define SMIC_SMS_ATN (1L << 2) |
497 | #define SMIC_EVT_ATN (1L << 3) |
498 | #define SMIC_SMI (1L << 4) |
499 | #define SMIC_TX_DATA_RDY (1L << 6) |
500 | #define SMIC_RX_DATA_RDY (1L << 7) |
501 | |
502 | int smic_wait(struct ipmi_softc *, uint8_t, uint8_t, const char *); |
503 | int smic_write_cmd_data(struct ipmi_softc *, uint8_t, const uint8_t *); |
504 | int smic_read_data(struct ipmi_softc *, uint8_t *); |
505 | |
506 | int |
507 | smic_wait(struct ipmi_softc *sc, uint8_t mask, uint8_t val, const char *lbl) |
508 | { |
509 | int v; |
510 | |
511 | /* Wait for expected flag bits */ |
512 | v = bmc_io_wait(sc, _SMIC_FLAG_REG, mask, val, "smicwait" ); |
513 | if (v < 0) |
514 | return (-1); |
515 | |
516 | /* Return current status */ |
517 | v = bmc_read(sc, _SMIC_CTRL_REG); |
518 | dbg_printf(99, "smic_wait(%s) = %.2x\n" , lbl, v); |
519 | return (v); |
520 | } |
521 | |
522 | int |
523 | smic_write_cmd_data(struct ipmi_softc *sc, uint8_t cmd, const uint8_t *data) |
524 | { |
525 | int sts, v; |
526 | |
527 | dbg_printf(50, "smic_wcd: %.2x %.2x\n" , cmd, data ? *data : -1); |
528 | sts = smic_wait(sc, SMIC_TX_DATA_RDY | SMIC_BUSY, SMIC_TX_DATA_RDY, |
529 | "smic_write_cmd_data ready" ); |
530 | if (sts < 0) |
531 | return (sts); |
532 | |
533 | bmc_write(sc, _SMIC_CTRL_REG, cmd); |
534 | if (data) |
535 | bmc_write(sc, _SMIC_DATAOUT_REG, *data); |
536 | |
537 | /* Toggle BUSY bit, then wait for busy bit to clear */ |
538 | v = bmc_read(sc, _SMIC_FLAG_REG); |
539 | bmc_write(sc, _SMIC_FLAG_REG, v | SMIC_BUSY); |
540 | |
541 | return (smic_wait(sc, SMIC_BUSY, 0, "smic_write_cmd_data busy" )); |
542 | } |
543 | |
544 | int |
545 | smic_read_data(struct ipmi_softc *sc, uint8_t *data) |
546 | { |
547 | int sts; |
548 | |
549 | sts = smic_wait(sc, SMIC_RX_DATA_RDY | SMIC_BUSY, SMIC_RX_DATA_RDY, |
550 | "smic_read_data" ); |
551 | if (sts >= 0) { |
552 | *data = bmc_read(sc, _SMIC_DATAIN_REG); |
553 | dbg_printf(50, "smic_readdata: %.2x\n" , *data); |
554 | } |
555 | return (sts); |
556 | } |
557 | |
558 | #define ErrStat(a,b) if (a) printf(b); |
559 | |
560 | int |
561 | smic_sendmsg(struct ipmi_softc *sc, int len, const uint8_t *data) |
562 | { |
563 | int sts, idx; |
564 | |
565 | sts = smic_write_cmd_data(sc, SMS_CC_START_TRANSFER, &data[0]); |
566 | ErrStat(sts != SMS_SC_WRITE_START, "smic_sendmsg: wstart" ); |
567 | for (idx = 1; idx < len - 1; idx++) { |
568 | sts = smic_write_cmd_data(sc, SMS_CC_NEXT_TRANSFER, |
569 | &data[idx]); |
570 | ErrStat(sts != SMS_SC_WRITE_NEXT, "smic_sendmsg: write" ); |
571 | } |
572 | sts = smic_write_cmd_data(sc, SMS_CC_END_TRANSFER, &data[idx]); |
573 | if (sts != SMS_SC_WRITE_END) { |
574 | dbg_printf(50, "smic_sendmsg %d/%d = %.2x\n" , idx, len, sts); |
575 | return (-1); |
576 | } |
577 | |
578 | return (0); |
579 | } |
580 | |
581 | int |
582 | smic_recvmsg(struct ipmi_softc *sc, int maxlen, int *len, uint8_t *data) |
583 | { |
584 | int sts, idx; |
585 | |
586 | *len = 0; |
587 | sts = smic_wait(sc, SMIC_RX_DATA_RDY, SMIC_RX_DATA_RDY, "smic_recvmsg" ); |
588 | if (sts < 0) |
589 | return (-1); |
590 | |
591 | sts = smic_write_cmd_data(sc, SMS_CC_START_RECEIVE, NULL); |
592 | ErrStat(sts != SMS_SC_READ_START, "smic_recvmsg: rstart" ); |
593 | for (idx = 0;; ) { |
594 | sts = smic_read_data(sc, &data[idx++]); |
595 | if (sts != SMS_SC_READ_START && sts != SMS_SC_READ_NEXT) |
596 | break; |
597 | smic_write_cmd_data(sc, SMS_CC_NEXT_RECEIVE, NULL); |
598 | } |
599 | ErrStat(sts != SMS_SC_READ_END, "smic_recvmsg: rend" ); |
600 | |
601 | *len = idx; |
602 | |
603 | sts = smic_write_cmd_data(sc, SMS_CC_END_RECEIVE, NULL); |
604 | if (sts != SMS_SC_READY) { |
605 | dbg_printf(50, "smic_recvmsg %d/%d = %.2x\n" , idx, maxlen, sts); |
606 | return (-1); |
607 | } |
608 | |
609 | return (0); |
610 | } |
611 | |
612 | int |
613 | smic_reset(struct ipmi_softc *sc) |
614 | { |
615 | return (-1); |
616 | } |
617 | |
618 | int |
619 | smic_probe(struct ipmi_softc *sc) |
620 | { |
621 | /* Flag register should not be 0xFF on a good system */ |
622 | if (bmc_read(sc, _SMIC_FLAG_REG) == 0xFF) |
623 | return (-1); |
624 | |
625 | return (0); |
626 | } |
627 | |
628 | /* |
629 | * KCS interface |
630 | */ |
631 | #define _KCS_DATAIN_REGISTER 0 |
632 | #define _KCS_DATAOUT_REGISTER 0 |
633 | #define KCS_READ_NEXT 0x68 |
634 | |
635 | #define _KCS_COMMAND_REGISTER 1 |
636 | #define KCS_GET_STATUS 0x60 |
637 | #define KCS_WRITE_START 0x61 |
638 | #define KCS_WRITE_END 0x62 |
639 | |
640 | #define _KCS_STATUS_REGISTER 1 |
641 | #define KCS_OBF (1L << 0) |
642 | #define KCS_IBF (1L << 1) |
643 | #define KCS_SMS_ATN (1L << 2) |
644 | #define KCS_CD (1L << 3) |
645 | #define KCS_OEM1 (1L << 4) |
646 | #define KCS_OEM2 (1L << 5) |
647 | #define KCS_STATE_MASK 0xc0 |
648 | #define KCS_IDLE_STATE 0x00 |
649 | #define KCS_READ_STATE 0x40 |
650 | #define KCS_WRITE_STATE 0x80 |
651 | #define KCS_ERROR_STATE 0xC0 |
652 | |
653 | int kcs_wait(struct ipmi_softc *, uint8_t, uint8_t, const char *); |
654 | int kcs_write_cmd(struct ipmi_softc *, uint8_t); |
655 | int kcs_write_data(struct ipmi_softc *, uint8_t); |
656 | int kcs_read_data(struct ipmi_softc *, uint8_t *); |
657 | |
658 | int |
659 | kcs_wait(struct ipmi_softc *sc, uint8_t mask, uint8_t value, const char *lbl) |
660 | { |
661 | int v; |
662 | |
663 | v = bmc_io_wait(sc, _KCS_STATUS_REGISTER, mask, value, lbl); |
664 | if (v < 0) |
665 | return (v); |
666 | |
667 | /* Check if output buffer full, read dummy byte */ |
668 | if ((v & (KCS_OBF | KCS_STATE_MASK)) == (KCS_OBF | KCS_WRITE_STATE)) |
669 | bmc_read(sc, _KCS_DATAIN_REGISTER); |
670 | |
671 | /* Check for error state */ |
672 | if ((v & KCS_STATE_MASK) == KCS_ERROR_STATE) { |
673 | bmc_write(sc, _KCS_COMMAND_REGISTER, KCS_GET_STATUS); |
674 | while (bmc_read(sc, _KCS_STATUS_REGISTER) & KCS_IBF) |
675 | ; |
676 | aprint_error("ipmi: error code: %x\n" , |
677 | bmc_read(sc, _KCS_DATAIN_REGISTER)); |
678 | } |
679 | |
680 | return (v & KCS_STATE_MASK); |
681 | } |
682 | |
683 | int |
684 | kcs_write_cmd(struct ipmi_softc *sc, uint8_t cmd) |
685 | { |
686 | /* ASSERT: IBF and OBF are clear */ |
687 | dbg_printf(50, "kcswritecmd: %.2x\n" , cmd); |
688 | bmc_write(sc, _KCS_COMMAND_REGISTER, cmd); |
689 | |
690 | return (kcs_wait(sc, KCS_IBF, 0, "write_cmd" )); |
691 | } |
692 | |
693 | int |
694 | kcs_write_data(struct ipmi_softc *sc, uint8_t data) |
695 | { |
696 | /* ASSERT: IBF and OBF are clear */ |
697 | dbg_printf(50, "kcswritedata: %.2x\n" , data); |
698 | bmc_write(sc, _KCS_DATAOUT_REGISTER, data); |
699 | |
700 | return (kcs_wait(sc, KCS_IBF, 0, "write_data" )); |
701 | } |
702 | |
703 | int |
704 | kcs_read_data(struct ipmi_softc *sc, uint8_t * data) |
705 | { |
706 | int sts; |
707 | |
708 | sts = kcs_wait(sc, KCS_IBF | KCS_OBF, KCS_OBF, "read_data" ); |
709 | if (sts != KCS_READ_STATE) |
710 | return (sts); |
711 | |
712 | /* ASSERT: OBF is set read data, request next byte */ |
713 | *data = bmc_read(sc, _KCS_DATAIN_REGISTER); |
714 | bmc_write(sc, _KCS_DATAOUT_REGISTER, KCS_READ_NEXT); |
715 | |
716 | dbg_printf(50, "kcsreaddata: %.2x\n" , *data); |
717 | |
718 | return (sts); |
719 | } |
720 | |
721 | /* Exported KCS functions */ |
722 | int |
723 | kcs_sendmsg(struct ipmi_softc *sc, int len, const uint8_t * data) |
724 | { |
725 | int idx, sts; |
726 | |
727 | /* ASSERT: IBF is clear */ |
728 | dbg_dump(50, "kcs sendmsg" , len, data); |
729 | sts = kcs_write_cmd(sc, KCS_WRITE_START); |
730 | for (idx = 0; idx < len; idx++) { |
731 | if (idx == len - 1) |
732 | sts = kcs_write_cmd(sc, KCS_WRITE_END); |
733 | |
734 | if (sts != KCS_WRITE_STATE) |
735 | break; |
736 | |
737 | sts = kcs_write_data(sc, data[idx]); |
738 | } |
739 | if (sts != KCS_READ_STATE) { |
740 | dbg_printf(1, "kcs sendmsg = %d/%d <%.2x>\n" , idx, len, sts); |
741 | dbg_dump(1, "kcs_sendmsg" , len, data); |
742 | return (-1); |
743 | } |
744 | |
745 | return (0); |
746 | } |
747 | |
748 | int |
749 | kcs_recvmsg(struct ipmi_softc *sc, int maxlen, int *rxlen, uint8_t * data) |
750 | { |
751 | int idx, sts; |
752 | |
753 | for (idx = 0; idx < maxlen; idx++) { |
754 | sts = kcs_read_data(sc, &data[idx]); |
755 | if (sts != KCS_READ_STATE) |
756 | break; |
757 | } |
758 | sts = kcs_wait(sc, KCS_IBF, 0, "recv" ); |
759 | *rxlen = idx; |
760 | if (sts != KCS_IDLE_STATE) { |
761 | dbg_printf(1, "kcs read = %d/%d <%.2x>\n" , idx, maxlen, sts); |
762 | return (-1); |
763 | } |
764 | |
765 | dbg_dump(50, "kcs recvmsg" , idx, data); |
766 | |
767 | return (0); |
768 | } |
769 | |
770 | int |
771 | kcs_reset(struct ipmi_softc *sc) |
772 | { |
773 | return (-1); |
774 | } |
775 | |
776 | int |
777 | kcs_probe(struct ipmi_softc *sc) |
778 | { |
779 | uint8_t v; |
780 | |
781 | v = bmc_read(sc, _KCS_STATUS_REGISTER); |
782 | #if 0 |
783 | printf("kcs_probe: %2x\n" , v); |
784 | printf(" STS: %2x\n" , v & KCS_STATE_MASK); |
785 | printf(" ATN: %2x\n" , v & KCS_SMS_ATN); |
786 | printf(" C/D: %2x\n" , v & KCS_CD); |
787 | printf(" IBF: %2x\n" , v & KCS_IBF); |
788 | printf(" OBF: %2x\n" , v & KCS_OBF); |
789 | #else |
790 | __USE(v); |
791 | #endif |
792 | return (0); |
793 | } |
794 | |
795 | /* |
796 | * IPMI code |
797 | */ |
798 | #define READ_SMS_BUFFER 0x37 |
799 | #define WRITE_I2C 0x50 |
800 | |
801 | #define GET_MESSAGE_CMD 0x33 |
802 | #define SEND_MESSAGE_CMD 0x34 |
803 | |
804 | #define IPMB_CHANNEL_NUMBER 0 |
805 | |
806 | #define PUBLIC_BUS 0 |
807 | |
808 | #define MIN_I2C_PACKET_SIZE 3 |
809 | #define MIN_IMB_PACKET_SIZE 7 /* one byte for cksum */ |
810 | |
811 | #define MIN_BTBMC_REQ_SIZE 4 |
812 | #define MIN_BTBMC_RSP_SIZE 5 |
813 | #define MIN_BMC_REQ_SIZE 2 |
814 | #define MIN_BMC_RSP_SIZE 3 |
815 | |
816 | #define BMC_SA 0x20 /* BMC/ESM3 */ |
817 | #define FPC_SA 0x22 /* front panel */ |
818 | #define BP_SA 0xC0 /* Primary Backplane */ |
819 | #define BP2_SA 0xC2 /* Secondary Backplane */ |
820 | #define PBP_SA 0xC4 /* Peripheral Backplane */ |
821 | #define DRAC_SA 0x28 /* DRAC-III */ |
822 | #define DRAC3_SA 0x30 /* DRAC-III */ |
823 | #define BMC_LUN 0 |
824 | #define SMS_LUN 2 |
825 | |
826 | struct ipmi_request { |
827 | uint8_t ; |
828 | uint8_t rsLun; |
829 | uint8_t netFn; |
830 | uint8_t cmd; |
831 | uint8_t data_len; |
832 | uint8_t *data; |
833 | }; |
834 | |
835 | struct ipmi_response { |
836 | uint8_t cCode; |
837 | uint8_t data_len; |
838 | uint8_t *data; |
839 | }; |
840 | |
841 | struct ipmi_bmc_request { |
842 | uint8_t bmc_nfLn; |
843 | uint8_t bmc_cmd; |
844 | uint8_t bmc_data_len; |
845 | uint8_t bmc_data[1]; |
846 | }; |
847 | |
848 | struct ipmi_bmc_response { |
849 | uint8_t bmc_nfLn; |
850 | uint8_t bmc_cmd; |
851 | uint8_t bmc_cCode; |
852 | uint8_t bmc_data_len; |
853 | uint8_t bmc_data[1]; |
854 | }; |
855 | |
856 | |
857 | CFATTACH_DECL2_NEW(ipmi, sizeof(struct ipmi_softc), |
858 | ipmi_match, ipmi_attach, ipmi_detach, NULL, NULL, NULL); |
859 | |
860 | /* Scan memory for signature */ |
861 | void * |
862 | scan_sig(long start, long end, int skip, int len, const void *data) |
863 | { |
864 | void *va; |
865 | |
866 | while (start < end) { |
867 | va = ISA_HOLE_VADDR(start); |
868 | if (memcmp(va, data, len) == 0) |
869 | return (va); |
870 | |
871 | start += skip; |
872 | } |
873 | |
874 | return (NULL); |
875 | } |
876 | |
877 | void |
878 | dumpb(const char *lbl, int len, const uint8_t *data) |
879 | { |
880 | int idx; |
881 | |
882 | printf("%s: " , lbl); |
883 | for (idx = 0; idx < len; idx++) |
884 | printf("%.2x " , data[idx]); |
885 | |
886 | printf("\n" ); |
887 | } |
888 | |
889 | void |
890 | ipmi_smbios_probe(struct smbios_ipmi *pipmi, struct ipmi_attach_args *ia) |
891 | { |
892 | const char *platform; |
893 | |
894 | dbg_printf(1, "ipmi_smbios_probe: %02x %02x %02x %02x " |
895 | "%08" PRIx64 " %02x %02x\n" , |
896 | pipmi->smipmi_if_type, |
897 | pipmi->smipmi_if_rev, |
898 | pipmi->smipmi_i2c_address, |
899 | pipmi->smipmi_nvram_address, |
900 | pipmi->smipmi_base_address, |
901 | pipmi->smipmi_base_flags, |
902 | pipmi->smipmi_irq); |
903 | |
904 | ia->iaa_if_type = pipmi->smipmi_if_type; |
905 | ia->iaa_if_rev = pipmi->smipmi_if_rev; |
906 | ia->iaa_if_irq = (pipmi->smipmi_base_flags & SMIPMI_FLAG_IRQEN) ? |
907 | pipmi->smipmi_irq : -1; |
908 | ia->iaa_if_irqlvl = (pipmi->smipmi_base_flags & SMIPMI_FLAG_IRQLVL) ? |
909 | IST_LEVEL : IST_EDGE; |
910 | |
911 | switch (SMIPMI_FLAG_IFSPACING(pipmi->smipmi_base_flags)) { |
912 | case IPMI_IOSPACING_BYTE: |
913 | ia->iaa_if_iospacing = 1; |
914 | break; |
915 | |
916 | case IPMI_IOSPACING_DWORD: |
917 | ia->iaa_if_iospacing = 4; |
918 | break; |
919 | |
920 | case IPMI_IOSPACING_WORD: |
921 | ia->iaa_if_iospacing = 2; |
922 | break; |
923 | |
924 | default: |
925 | ia->iaa_if_iospacing = 1; |
926 | aprint_error("ipmi: unknown register spacing\n" ); |
927 | } |
928 | |
929 | /* Calculate base address (PCI BAR format) */ |
930 | if (pipmi->smipmi_base_address & 0x1) { |
931 | ia->iaa_if_iotype = 'i'; |
932 | ia->iaa_if_iobase = pipmi->smipmi_base_address & ~0x1; |
933 | } else { |
934 | ia->iaa_if_iotype = 'm'; |
935 | ia->iaa_if_iobase = pipmi->smipmi_base_address & ~0xF; |
936 | } |
937 | if (pipmi->smipmi_base_flags & SMIPMI_FLAG_ODDOFFSET) |
938 | ia->iaa_if_iobase++; |
939 | |
940 | platform = pmf_get_platform("system-product" ); |
941 | if (platform != NULL && |
942 | strcmp(platform, "ProLiant MicroServer" ) == 0 && |
943 | pipmi->smipmi_base_address != 0) { |
944 | ia->iaa_if_iospacing = 1; |
945 | ia->iaa_if_iobase = pipmi->smipmi_base_address & ~0x7; |
946 | ia->iaa_if_iotype = 'i'; |
947 | return; |
948 | } |
949 | |
950 | if (pipmi->smipmi_base_flags == 0x7f) { |
951 | /* IBM 325 eServer workaround */ |
952 | ia->iaa_if_iospacing = 1; |
953 | ia->iaa_if_iobase = pipmi->smipmi_base_address; |
954 | ia->iaa_if_iotype = 'i'; |
955 | return; |
956 | } |
957 | } |
958 | |
959 | /* |
960 | * bt_buildmsg builds an IPMI message from a nfLun, cmd, and data |
961 | * This is used by BT protocol |
962 | * |
963 | * Returns a buffer to an allocated message, txlen contains length |
964 | * of allocated message |
965 | */ |
966 | void * |
967 | bt_buildmsg(struct ipmi_softc *sc, int nfLun, int cmd, int len, |
968 | const void *data, int *txlen) |
969 | { |
970 | uint8_t *buf; |
971 | |
972 | /* Block transfer needs 4 extra bytes: length/netfn/seq/cmd + data */ |
973 | *txlen = len + 4; |
974 | buf = ipmi_buf_acquire(sc, *txlen); |
975 | if (buf == NULL) |
976 | return (NULL); |
977 | |
978 | buf[IPMI_BTMSG_LEN] = len + 3; |
979 | buf[IPMI_BTMSG_NFLN] = nfLun; |
980 | buf[IPMI_BTMSG_SEQ] = sc->sc_btseq++; |
981 | buf[IPMI_BTMSG_CMD] = cmd; |
982 | if (len && data) |
983 | memcpy(buf + IPMI_BTMSG_DATASND, data, len); |
984 | |
985 | return (buf); |
986 | } |
987 | |
988 | /* |
989 | * cmn_buildmsg builds an IPMI message from a nfLun, cmd, and data |
990 | * This is used by both SMIC and KCS protocols |
991 | * |
992 | * Returns a buffer to an allocated message, txlen contains length |
993 | * of allocated message |
994 | */ |
995 | void * |
996 | cmn_buildmsg(struct ipmi_softc *sc, int nfLun, int cmd, int len, |
997 | const void *data, int *txlen) |
998 | { |
999 | uint8_t *buf; |
1000 | |
1001 | /* Common needs two extra bytes: nfLun/cmd + data */ |
1002 | *txlen = len + 2; |
1003 | buf = ipmi_buf_acquire(sc, *txlen); |
1004 | if (buf == NULL) |
1005 | return (NULL); |
1006 | |
1007 | buf[IPMI_MSG_NFLN] = nfLun; |
1008 | buf[IPMI_MSG_CMD] = cmd; |
1009 | if (len && data) |
1010 | memcpy(buf + IPMI_MSG_DATASND, data, len); |
1011 | |
1012 | return (buf); |
1013 | } |
1014 | |
1015 | /* |
1016 | * ipmi_sendcmd: caller must hold sc_cmd_mtx. |
1017 | * |
1018 | * Send an IPMI command |
1019 | */ |
1020 | int |
1021 | ipmi_sendcmd(struct ipmi_softc *sc, int , int rslun, int netfn, int cmd, |
1022 | int txlen, const void *data) |
1023 | { |
1024 | uint8_t *buf; |
1025 | int rc = -1; |
1026 | |
1027 | dbg_printf(50, "ipmi_sendcmd: rssa=%.2x nfln=%.2x cmd=%.2x len=%.2x\n" , |
1028 | rssa, NETFN_LUN(netfn, rslun), cmd, txlen); |
1029 | dbg_dump(10, " send" , txlen, data); |
1030 | if (rssa != BMC_SA) { |
1031 | #if 0 |
1032 | buf = sc->sc_if->buildmsg(sc, NETFN_LUN(APP_NETFN, BMC_LUN), |
1033 | APP_SEND_MESSAGE, 7 + txlen, NULL, &txlen); |
1034 | pI2C->bus = (sc->if_ver == 0x09) ? |
1035 | PUBLIC_BUS : |
1036 | IPMB_CHANNEL_NUMBER; |
1037 | |
1038 | imbreq->rsSa = rssa; |
1039 | imbreq->nfLn = NETFN_LUN(netfn, rslun); |
1040 | imbreq->cSum1 = -(imbreq->rsSa + imbreq->nfLn); |
1041 | imbreq->rqSa = BMC_SA; |
1042 | imbreq->seqLn = NETFN_LUN(sc->imb_seq++, SMS_LUN); |
1043 | imbreq->cmd = cmd; |
1044 | if (txlen) |
1045 | memcpy(imbreq->data, data, txlen); |
1046 | /* Set message checksum */ |
1047 | imbreq->data[txlen] = cksum8(&imbreq->rqSa, txlen + 3); |
1048 | #endif |
1049 | goto done; |
1050 | } else |
1051 | buf = sc->sc_if->buildmsg(sc, NETFN_LUN(netfn, rslun), cmd, |
1052 | txlen, data, &txlen); |
1053 | |
1054 | if (buf == NULL) { |
1055 | printf("ipmi: sendcmd buffer busy\n" ); |
1056 | goto done; |
1057 | } |
1058 | rc = sc->sc_if->sendmsg(sc, txlen, buf); |
1059 | ipmi_buf_release(sc, buf); |
1060 | |
1061 | ipmi_delay(sc, 50); /* give bmc chance to digest command */ |
1062 | |
1063 | done: |
1064 | return (rc); |
1065 | } |
1066 | |
1067 | void |
1068 | ipmi_buf_release(struct ipmi_softc *sc, char *buf) |
1069 | { |
1070 | KASSERT(sc->sc_buf_rsvd); |
1071 | KASSERT(sc->sc_buf == buf); |
1072 | sc->sc_buf_rsvd = false; |
1073 | } |
1074 | |
1075 | char * |
1076 | ipmi_buf_acquire(struct ipmi_softc *sc, size_t len) |
1077 | { |
1078 | KASSERT(len <= sizeof(sc->sc_buf)); |
1079 | |
1080 | if (sc->sc_buf_rsvd || len > sizeof(sc->sc_buf)) |
1081 | return NULL; |
1082 | sc->sc_buf_rsvd = true; |
1083 | return sc->sc_buf; |
1084 | } |
1085 | |
1086 | /* |
1087 | * ipmi_recvcmd: caller must hold sc_cmd_mtx. |
1088 | */ |
1089 | int |
1090 | ipmi_recvcmd(struct ipmi_softc *sc, int maxlen, int *rxlen, void *data) |
1091 | { |
1092 | uint8_t *buf, rc = 0; |
1093 | int rawlen; |
1094 | |
1095 | /* Need three extra bytes: netfn/cmd/ccode + data */ |
1096 | buf = ipmi_buf_acquire(sc, maxlen + 3); |
1097 | if (buf == NULL) { |
1098 | printf("ipmi: ipmi_recvcmd: malloc fails\n" ); |
1099 | return (-1); |
1100 | } |
1101 | /* Receive message from interface, copy out result data */ |
1102 | if (sc->sc_if->recvmsg(sc, maxlen + 3, &rawlen, buf)) { |
1103 | ipmi_buf_release(sc, buf); |
1104 | return (-1); |
1105 | } |
1106 | |
1107 | *rxlen = rawlen - IPMI_MSG_DATARCV; |
1108 | if (*rxlen > 0 && data) |
1109 | memcpy(data, buf + IPMI_MSG_DATARCV, *rxlen); |
1110 | |
1111 | if ((rc = buf[IPMI_MSG_CCODE]) != 0) |
1112 | dbg_printf(1, "ipmi_recvmsg: nfln=%.2x cmd=%.2x err=%.2x\n" , |
1113 | buf[IPMI_MSG_NFLN], buf[IPMI_MSG_CMD], buf[IPMI_MSG_CCODE]); |
1114 | |
1115 | dbg_printf(50, "ipmi_recvcmd: nfln=%.2x cmd=%.2x err=%.2x len=%.2x\n" , |
1116 | buf[IPMI_MSG_NFLN], buf[IPMI_MSG_CMD], buf[IPMI_MSG_CCODE], |
1117 | *rxlen); |
1118 | dbg_dump(10, " recv" , *rxlen, data); |
1119 | |
1120 | ipmi_buf_release(sc, buf); |
1121 | |
1122 | return (rc); |
1123 | } |
1124 | |
1125 | /* |
1126 | * ipmi_delay: caller must hold sc_cmd_mtx. |
1127 | */ |
1128 | void |
1129 | ipmi_delay(struct ipmi_softc *sc, int ms) |
1130 | { |
1131 | if (cold) |
1132 | delay(ms * 1000); |
1133 | else { |
1134 | mutex_enter(&sc->sc_sleep_mtx); |
1135 | cv_timedwait(&sc->sc_cmd_sleep, &sc->sc_sleep_mtx, mstohz(ms)); |
1136 | mutex_exit(&sc->sc_sleep_mtx); |
1137 | } |
1138 | } |
1139 | |
1140 | /* Read a partial SDR entry */ |
1141 | int |
1142 | get_sdr_partial(struct ipmi_softc *sc, uint16_t recordId, uint16_t reserveId, |
1143 | uint8_t offset, uint8_t length, void *buffer, uint16_t *nxtRecordId) |
1144 | { |
1145 | uint8_t cmd[256 + 8]; |
1146 | int len; |
1147 | |
1148 | ((uint16_t *) cmd)[0] = reserveId; |
1149 | ((uint16_t *) cmd)[1] = recordId; |
1150 | cmd[4] = offset; |
1151 | cmd[5] = length; |
1152 | mutex_enter(&sc->sc_cmd_mtx); |
1153 | if (ipmi_sendcmd(sc, BMC_SA, 0, STORAGE_NETFN, STORAGE_GET_SDR, 6, |
1154 | cmd)) { |
1155 | mutex_exit(&sc->sc_cmd_mtx); |
1156 | printf("ipmi: sendcmd fails\n" ); |
1157 | return (-1); |
1158 | } |
1159 | if (ipmi_recvcmd(sc, 8 + length, &len, cmd)) { |
1160 | mutex_exit(&sc->sc_cmd_mtx); |
1161 | printf("ipmi: getSdrPartial: recvcmd fails\n" ); |
1162 | return (-1); |
1163 | } |
1164 | mutex_exit(&sc->sc_cmd_mtx); |
1165 | if (nxtRecordId) |
1166 | *nxtRecordId = *(uint16_t *) cmd; |
1167 | memcpy(buffer, cmd + 2, len - 2); |
1168 | |
1169 | return (0); |
1170 | } |
1171 | |
1172 | int maxsdrlen = 0x10; |
1173 | |
1174 | /* Read an entire SDR; pass to add sensor */ |
1175 | int |
1176 | get_sdr(struct ipmi_softc *sc, uint16_t recid, uint16_t *nxtrec) |
1177 | { |
1178 | uint16_t resid = 0; |
1179 | int len, sdrlen, offset; |
1180 | uint8_t *psdr; |
1181 | struct sdrhdr shdr; |
1182 | |
1183 | mutex_enter(&sc->sc_cmd_mtx); |
1184 | /* Reserve SDR */ |
1185 | if (ipmi_sendcmd(sc, BMC_SA, 0, STORAGE_NETFN, STORAGE_RESERVE_SDR, |
1186 | 0, NULL)) { |
1187 | mutex_exit(&sc->sc_cmd_mtx); |
1188 | printf("ipmi: reserve send fails\n" ); |
1189 | return (-1); |
1190 | } |
1191 | if (ipmi_recvcmd(sc, sizeof(resid), &len, &resid)) { |
1192 | mutex_exit(&sc->sc_cmd_mtx); |
1193 | printf("ipmi: reserve recv fails\n" ); |
1194 | return (-1); |
1195 | } |
1196 | mutex_exit(&sc->sc_cmd_mtx); |
1197 | /* Get SDR Header */ |
1198 | if (get_sdr_partial(sc, recid, resid, 0, sizeof shdr, &shdr, nxtrec)) { |
1199 | printf("ipmi: get header fails\n" ); |
1200 | return (-1); |
1201 | } |
1202 | /* Allocate space for entire SDR Length of SDR in header does not |
1203 | * include header length */ |
1204 | sdrlen = sizeof(shdr) + shdr.record_length; |
1205 | psdr = malloc(sdrlen, M_DEVBUF, M_WAITOK|M_CANFAIL); |
1206 | if (psdr == NULL) |
1207 | return -1; |
1208 | |
1209 | memcpy(psdr, &shdr, sizeof(shdr)); |
1210 | |
1211 | /* Read SDR Data maxsdrlen bytes at a time */ |
1212 | for (offset = sizeof(shdr); offset < sdrlen; offset += maxsdrlen) { |
1213 | len = sdrlen - offset; |
1214 | if (len > maxsdrlen) |
1215 | len = maxsdrlen; |
1216 | |
1217 | if (get_sdr_partial(sc, recid, resid, offset, len, |
1218 | psdr + offset, NULL)) { |
1219 | printf("ipmi: get chunk : %d,%d fails\n" , |
1220 | offset, len); |
1221 | free(psdr, M_DEVBUF); |
1222 | return (-1); |
1223 | } |
1224 | } |
1225 | |
1226 | /* Add SDR to sensor list, if not wanted, free buffer */ |
1227 | if (add_sdr_sensor(sc, psdr) == 0) |
1228 | free(psdr, M_DEVBUF); |
1229 | |
1230 | return (0); |
1231 | } |
1232 | |
1233 | int |
1234 | getbits(uint8_t *bytes, int bitpos, int bitlen) |
1235 | { |
1236 | int v; |
1237 | int mask; |
1238 | |
1239 | bitpos += bitlen - 1; |
1240 | for (v = 0; bitlen--;) { |
1241 | v <<= 1; |
1242 | mask = 1L << (bitpos & 7); |
1243 | if (bytes[bitpos >> 3] & mask) |
1244 | v |= 1; |
1245 | bitpos--; |
1246 | } |
1247 | |
1248 | return (v); |
1249 | } |
1250 | |
1251 | /* Decode IPMI sensor name */ |
1252 | void |
1253 | ipmi_sensor_name(char *name, int len, uint8_t typelen, uint8_t *bits) |
1254 | { |
1255 | int i, slen; |
1256 | char bcdplus[] = "0123456789 -.:,_" ; |
1257 | |
1258 | slen = typelen & 0x1F; |
1259 | switch (typelen >> 6) { |
1260 | case IPMI_NAME_UNICODE: |
1261 | //unicode |
1262 | break; |
1263 | |
1264 | case IPMI_NAME_BCDPLUS: |
1265 | /* Characters are encoded in 4-bit BCDPLUS */ |
1266 | if (len < slen * 2 + 1) |
1267 | slen = (len >> 1) - 1; |
1268 | for (i = 0; i < slen; i++) { |
1269 | *(name++) = bcdplus[bits[i] >> 4]; |
1270 | *(name++) = bcdplus[bits[i] & 0xF]; |
1271 | } |
1272 | break; |
1273 | |
1274 | case IPMI_NAME_ASCII6BIT: |
1275 | /* Characters are encoded in 6-bit ASCII |
1276 | * 0x00 - 0x3F maps to 0x20 - 0x5F */ |
1277 | /* XXX: need to calculate max len: slen = 3/4 * len */ |
1278 | if (len < slen + 1) |
1279 | slen = len - 1; |
1280 | for (i = 0; i < slen * 8; i += 6) |
1281 | *(name++) = getbits(bits, i, 6) + ' '; |
1282 | break; |
1283 | |
1284 | case IPMI_NAME_ASCII8BIT: |
1285 | /* Characters are 8-bit ascii */ |
1286 | if (len < slen + 1) |
1287 | slen = len - 1; |
1288 | while (slen--) |
1289 | *(name++) = *(bits++); |
1290 | break; |
1291 | } |
1292 | *name = 0; |
1293 | } |
1294 | |
1295 | /* Sign extend a n-bit value */ |
1296 | long |
1297 | signextend(unsigned long val, int bits) |
1298 | { |
1299 | long msk = (1L << (bits-1))-1; |
1300 | |
1301 | return (-(val & ~msk) | val); |
1302 | } |
1303 | |
1304 | |
1305 | /* fixpoint arithmetic */ |
1306 | #define FIX2INT(x) ((int64_t)((x) >> 32)) |
1307 | #define INT2FIX(x) ((int64_t)((uint64_t)(x) << 32)) |
1308 | |
1309 | #define FIX2 0x0000000200000000ll /* 2.0 */ |
1310 | #define FIX3 0x0000000300000000ll /* 3.0 */ |
1311 | #define FIXE 0x00000002b7e15163ll /* 2.71828182845904523536 */ |
1312 | #define FIX10 0x0000000a00000000ll /* 10.0 */ |
1313 | #define FIXMONE 0xffffffff00000000ll /* -1.0 */ |
1314 | #define FIXHALF 0x0000000080000000ll /* 0.5 */ |
1315 | #define FIXTHIRD 0x0000000055555555ll /* 0.33333333333333333333 */ |
1316 | |
1317 | #define FIX1LOG2 0x0000000171547653ll /* 1.0/log(2) */ |
1318 | #define FIX1LOGE 0x0000000100000000ll /* 1.0/log(2.71828182845904523536) */ |
1319 | #define FIX1LOG10 0x000000006F2DEC55ll /* 1.0/log(10) */ |
1320 | |
1321 | #define FIX1E 0x000000005E2D58D9ll /* 1.0/2.71828182845904523536 */ |
1322 | |
1323 | static int64_t fixlog_a[] = { |
1324 | 0x0000000100000000ll /* 1.0/1.0 */, |
1325 | 0xffffffff80000000ll /* -1.0/2.0 */, |
1326 | 0x0000000055555555ll /* 1.0/3.0 */, |
1327 | 0xffffffffc0000000ll /* -1.0/4.0 */, |
1328 | 0x0000000033333333ll /* 1.0/5.0 */, |
1329 | 0x000000002aaaaaabll /* -1.0/6.0 */, |
1330 | 0x0000000024924925ll /* 1.0/7.0 */, |
1331 | 0x0000000020000000ll /* -1.0/8.0 */, |
1332 | 0x000000001c71c71cll /* 1.0/9.0 */ |
1333 | }; |
1334 | |
1335 | static int64_t fixexp_a[] = { |
1336 | 0x0000000100000000ll /* 1.0/1.0 */, |
1337 | 0x0000000100000000ll /* 1.0/1.0 */, |
1338 | 0x0000000080000000ll /* 1.0/2.0 */, |
1339 | 0x000000002aaaaaabll /* 1.0/6.0 */, |
1340 | 0x000000000aaaaaabll /* 1.0/24.0 */, |
1341 | 0x0000000002222222ll /* 1.0/120.0 */, |
1342 | 0x00000000005b05b0ll /* 1.0/720.0 */, |
1343 | 0x00000000000d00d0ll /* 1.0/5040.0 */, |
1344 | 0x000000000001a01all /* 1.0/40320.0 */ |
1345 | }; |
1346 | |
1347 | static int64_t |
1348 | fixmul(int64_t x, int64_t y) |
1349 | { |
1350 | int64_t z; |
1351 | int64_t a,b,c,d; |
1352 | int neg; |
1353 | |
1354 | neg = 0; |
1355 | if (x < 0) { |
1356 | x = -x; |
1357 | neg = !neg; |
1358 | } |
1359 | if (y < 0) { |
1360 | y = -y; |
1361 | neg = !neg; |
1362 | } |
1363 | |
1364 | a = FIX2INT(x); |
1365 | b = x - INT2FIX(a); |
1366 | c = FIX2INT(y); |
1367 | d = y - INT2FIX(c); |
1368 | |
1369 | z = INT2FIX(a*c) + a * d + b * c + (b/2 * d/2 >> 30); |
1370 | |
1371 | return neg ? -z : z; |
1372 | } |
1373 | |
1374 | static int64_t |
1375 | poly(int64_t x0, int64_t x, int64_t a[], int n) |
1376 | { |
1377 | int64_t z; |
1378 | int i; |
1379 | |
1380 | z = fixmul(x0, a[0]); |
1381 | for (i=1; i<n; ++i) { |
1382 | x0 = fixmul(x0, x); |
1383 | z = fixmul(x0, a[i]) + z; |
1384 | } |
1385 | return z; |
1386 | } |
1387 | |
1388 | static int64_t |
1389 | logx(int64_t x, int64_t y) |
1390 | { |
1391 | int64_t z; |
1392 | |
1393 | if (x <= INT2FIX(0)) { |
1394 | z = INT2FIX(-99999); |
1395 | goto done; |
1396 | } |
1397 | |
1398 | z = INT2FIX(0); |
1399 | while (x >= FIXE) { |
1400 | x = fixmul(x, FIX1E); |
1401 | z += INT2FIX(1); |
1402 | } |
1403 | while (x < INT2FIX(1)) { |
1404 | x = fixmul(x, FIXE); |
1405 | z -= INT2FIX(1); |
1406 | } |
1407 | |
1408 | x -= INT2FIX(1); |
1409 | z += poly(x, x, fixlog_a, sizeof(fixlog_a)/sizeof(fixlog_a[0])); |
1410 | z = fixmul(z, y); |
1411 | |
1412 | done: |
1413 | return z; |
1414 | } |
1415 | |
1416 | static int64_t |
1417 | powx(int64_t x, int64_t y) |
1418 | { |
1419 | int64_t k; |
1420 | |
1421 | if (x == INT2FIX(0)) |
1422 | goto done; |
1423 | |
1424 | x = logx(x,y); |
1425 | |
1426 | if (x < INT2FIX(0)) { |
1427 | x = INT2FIX(0) - x; |
1428 | k = -FIX2INT(x); |
1429 | x = INT2FIX(-k) - x; |
1430 | } else { |
1431 | k = FIX2INT(x); |
1432 | x = x - INT2FIX(k); |
1433 | } |
1434 | |
1435 | x = poly(INT2FIX(1), x, fixexp_a, sizeof(fixexp_a)/sizeof(fixexp_a[0])); |
1436 | |
1437 | while (k < 0) { |
1438 | x = fixmul(x, FIX1E); |
1439 | ++k; |
1440 | } |
1441 | while (k > 0) { |
1442 | x = fixmul(x, FIXE); |
1443 | --k; |
1444 | } |
1445 | |
1446 | done: |
1447 | return x; |
1448 | } |
1449 | |
1450 | /* Convert IPMI reading from sensor factors */ |
1451 | long |
1452 | ipmi_convert(uint8_t v, struct sdrtype1 *s1, long adj) |
1453 | { |
1454 | int64_t M, B; |
1455 | char K1, K2; |
1456 | int64_t val, v1, v2, vs; |
1457 | int sign = (s1->units1 >> 6) & 0x3; |
1458 | |
1459 | vs = (sign == 0x1 || sign == 0x2) ? (int8_t)v : v; |
1460 | if ((vs < 0) && (sign == 0x1)) |
1461 | vs++; |
1462 | |
1463 | /* Calculate linear reading variables */ |
1464 | M = signextend((((short)(s1->m_tolerance & 0xC0)) << 2) + s1->m, 10); |
1465 | B = signextend((((short)(s1->b_accuracy & 0xC0)) << 2) + s1->b, 10); |
1466 | K1 = signextend(s1->rbexp & 0xF, 4); |
1467 | K2 = signextend(s1->rbexp >> 4, 4); |
1468 | |
1469 | /* Calculate sensor reading: |
1470 | * y = L((M * v + (B * 10^K1)) * 10^(K2+adj) |
1471 | * |
1472 | * This commutes out to: |
1473 | * y = L(M*v * 10^(K2+adj) + B * 10^(K1+K2+adj)); */ |
1474 | v1 = powx(FIX10, INT2FIX(K2 + adj)); |
1475 | v2 = powx(FIX10, INT2FIX(K1 + K2 + adj)); |
1476 | val = M * vs * v1 + B * v2; |
1477 | |
1478 | /* Linearization function: y = f(x) 0 : y = x 1 : y = ln(x) 2 : y = |
1479 | * log10(x) 3 : y = log2(x) 4 : y = e^x 5 : y = 10^x 6 : y = 2^x 7 : y |
1480 | * = 1/x 8 : y = x^2 9 : y = x^3 10 : y = square root(x) 11 : y = cube |
1481 | * root(x) */ |
1482 | switch (s1->linear & 0x7f) { |
1483 | case 0: break; |
1484 | case 1: val = logx(val,FIX1LOGE); break; |
1485 | case 2: val = logx(val,FIX1LOG10); break; |
1486 | case 3: val = logx(val,FIX1LOG2); break; |
1487 | case 4: val = powx(FIXE,val); break; |
1488 | case 5: val = powx(FIX10,val); break; |
1489 | case 6: val = powx(FIX2,val); break; |
1490 | case 7: val = powx(val,FIXMONE); break; |
1491 | case 8: val = powx(val,FIX2); break; |
1492 | case 9: val = powx(val,FIX3); break; |
1493 | case 10: val = powx(val,FIXHALF); break; |
1494 | case 11: val = powx(val,FIXTHIRD); break; |
1495 | } |
1496 | |
1497 | return FIX2INT(val); |
1498 | } |
1499 | |
1500 | int32_t |
1501 | ipmi_convert_sensor(uint8_t *reading, struct ipmi_sensor *psensor) |
1502 | { |
1503 | struct sdrtype1 *s1 = (struct sdrtype1 *)psensor->i_sdr; |
1504 | int32_t val; |
1505 | |
1506 | switch (psensor->i_envtype) { |
1507 | case ENVSYS_STEMP: |
1508 | val = ipmi_convert(reading[0], s1, 6) + 273150000; |
1509 | break; |
1510 | |
1511 | case ENVSYS_SVOLTS_DC: |
1512 | val = ipmi_convert(reading[0], s1, 6); |
1513 | break; |
1514 | |
1515 | case ENVSYS_SFANRPM: |
1516 | val = ipmi_convert(reading[0], s1, 0); |
1517 | if (((s1->units1>>3)&0x7) == 0x3) |
1518 | val *= 60; /* RPS -> RPM */ |
1519 | break; |
1520 | default: |
1521 | val = 0; |
1522 | break; |
1523 | } |
1524 | return val; |
1525 | } |
1526 | |
1527 | void |
1528 | ipmi_set_limits(struct sysmon_envsys *sme, envsys_data_t *edata, |
1529 | sysmon_envsys_lim_t *limits, uint32_t *props) |
1530 | { |
1531 | struct ipmi_sensor *ipmi_s; |
1532 | |
1533 | /* Find the ipmi_sensor corresponding to this edata */ |
1534 | SLIST_FOREACH(ipmi_s, &ipmi_sensor_list, i_list) { |
1535 | if (ipmi_s->i_envnum == edata->sensor) { |
1536 | if (limits == NULL) { |
1537 | limits = &ipmi_s->i_deflims; |
1538 | props = &ipmi_s->i_defprops; |
1539 | } |
1540 | *props |= PROP_DRIVER_LIMITS; |
1541 | ipmi_s->i_limits = *limits; |
1542 | ipmi_s->i_props = *props; |
1543 | return; |
1544 | } |
1545 | } |
1546 | return; |
1547 | } |
1548 | |
1549 | void |
1550 | ipmi_get_limits(struct sysmon_envsys *sme, envsys_data_t *edata, |
1551 | sysmon_envsys_lim_t *limits, uint32_t *props) |
1552 | { |
1553 | struct ipmi_sensor *ipmi_s; |
1554 | struct ipmi_softc *sc = sme->sme_cookie; |
1555 | |
1556 | /* Find the ipmi_sensor corresponding to this edata */ |
1557 | SLIST_FOREACH(ipmi_s, &ipmi_sensor_list, i_list) { |
1558 | if (ipmi_s->i_envnum == edata->sensor) { |
1559 | ipmi_get_sensor_limits(sc, ipmi_s, limits, props); |
1560 | ipmi_s->i_limits = *limits; |
1561 | ipmi_s->i_props = *props; |
1562 | if (ipmi_s->i_defprops == 0) { |
1563 | ipmi_s->i_defprops = *props; |
1564 | ipmi_s->i_deflims = *limits; |
1565 | } |
1566 | return; |
1567 | } |
1568 | } |
1569 | return; |
1570 | } |
1571 | |
1572 | void |
1573 | ipmi_get_sensor_limits(struct ipmi_softc *sc, struct ipmi_sensor *psensor, |
1574 | sysmon_envsys_lim_t *limits, uint32_t *props) |
1575 | { |
1576 | struct sdrtype1 *s1 = (struct sdrtype1 *)psensor->i_sdr; |
1577 | bool failure; |
1578 | int rxlen; |
1579 | uint8_t data[32]; |
1580 | uint32_t prop_critmax, prop_warnmax, prop_critmin, prop_warnmin; |
1581 | int32_t *pcritmax, *pwarnmax, *pcritmin, *pwarnmin; |
1582 | |
1583 | *props &= ~(PROP_CRITMIN | PROP_CRITMAX | PROP_WARNMIN | PROP_WARNMAX); |
1584 | data[0] = psensor->i_num; |
1585 | mutex_enter(&sc->sc_cmd_mtx); |
1586 | failure = |
1587 | ipmi_sendcmd(sc, s1->owner_id, s1->owner_lun, |
1588 | SE_NETFN, SE_GET_SENSOR_THRESHOLD, 1, data) || |
1589 | ipmi_recvcmd(sc, sizeof(data), &rxlen, data); |
1590 | mutex_exit(&sc->sc_cmd_mtx); |
1591 | if (failure) |
1592 | return; |
1593 | |
1594 | dbg_printf(25, "recvdata: %.2x %.2x %.2x %.2x %.2x %.2x %.2x\n" , |
1595 | data[0], data[1], data[2], data[3], data[4], data[5], data[6]); |
1596 | |
1597 | switch (s1->linear & 0x7f) { |
1598 | case 7: /* 1/x sensor, exchange upper and lower limits */ |
1599 | prop_critmax = PROP_CRITMIN; |
1600 | prop_warnmax = PROP_WARNMIN; |
1601 | prop_critmin = PROP_CRITMAX; |
1602 | prop_warnmin = PROP_WARNMAX; |
1603 | pcritmax = &limits->sel_critmin; |
1604 | pwarnmax = &limits->sel_warnmin; |
1605 | pcritmin = &limits->sel_critmax; |
1606 | pwarnmin = &limits->sel_warnmax; |
1607 | break; |
1608 | default: |
1609 | prop_critmax = PROP_CRITMAX; |
1610 | prop_warnmax = PROP_WARNMAX; |
1611 | prop_critmin = PROP_CRITMIN; |
1612 | prop_warnmin = PROP_WARNMIN; |
1613 | pcritmax = &limits->sel_critmax; |
1614 | pwarnmax = &limits->sel_warnmax; |
1615 | pcritmin = &limits->sel_critmin; |
1616 | pwarnmin = &limits->sel_warnmin; |
1617 | break; |
1618 | } |
1619 | |
1620 | if (data[0] & 0x20 && data[6] != 0xff) { |
1621 | *pcritmax = ipmi_convert_sensor(&data[6], psensor); |
1622 | *props |= prop_critmax; |
1623 | } |
1624 | if (data[0] & 0x10 && data[5] != 0xff) { |
1625 | *pcritmax = ipmi_convert_sensor(&data[5], psensor); |
1626 | *props |= prop_critmax; |
1627 | } |
1628 | if (data[0] & 0x08 && data[4] != 0xff) { |
1629 | *pwarnmax = ipmi_convert_sensor(&data[4], psensor); |
1630 | *props |= prop_warnmax; |
1631 | } |
1632 | if (data[0] & 0x04 && data[3] != 0x00) { |
1633 | *pcritmin = ipmi_convert_sensor(&data[3], psensor); |
1634 | *props |= prop_critmin; |
1635 | } |
1636 | if (data[0] & 0x02 && data[2] != 0x00) { |
1637 | *pcritmin = ipmi_convert_sensor(&data[2], psensor); |
1638 | *props |= prop_critmin; |
1639 | } |
1640 | if (data[0] & 0x01 && data[1] != 0x00) { |
1641 | *pwarnmin = ipmi_convert_sensor(&data[1], psensor); |
1642 | *props |= prop_warnmin; |
1643 | } |
1644 | return; |
1645 | } |
1646 | |
1647 | int |
1648 | ipmi_sensor_status(struct ipmi_softc *sc, struct ipmi_sensor *psensor, |
1649 | envsys_data_t *edata, uint8_t *reading) |
1650 | { |
1651 | int etype; |
1652 | |
1653 | /* Get reading of sensor */ |
1654 | edata->value_cur = ipmi_convert_sensor(reading, psensor); |
1655 | |
1656 | /* Return Sensor Status */ |
1657 | etype = (psensor->i_etype << 8) + psensor->i_stype; |
1658 | switch (etype) { |
1659 | case IPMI_SENSOR_TYPE_TEMP: |
1660 | case IPMI_SENSOR_TYPE_VOLT: |
1661 | case IPMI_SENSOR_TYPE_FAN: |
1662 | if (psensor->i_props & PROP_CRITMAX && |
1663 | edata->value_cur > psensor->i_limits.sel_critmax) |
1664 | return ENVSYS_SCRITOVER; |
1665 | |
1666 | if (psensor->i_props & PROP_WARNMAX && |
1667 | edata->value_cur > psensor->i_limits.sel_warnmax) |
1668 | return ENVSYS_SWARNOVER; |
1669 | |
1670 | if (psensor->i_props & PROP_WARNMIN && |
1671 | edata->value_cur < psensor->i_limits.sel_warnmin) |
1672 | return ENVSYS_SWARNUNDER; |
1673 | |
1674 | if (psensor->i_props & PROP_CRITMIN && |
1675 | edata->value_cur < psensor->i_limits.sel_critmin) |
1676 | return ENVSYS_SCRITUNDER; |
1677 | |
1678 | break; |
1679 | |
1680 | case IPMI_SENSOR_TYPE_INTRUSION: |
1681 | edata->value_cur = (reading[2] & 1) ? 0 : 1; |
1682 | if (reading[2] & 0x1) |
1683 | return ENVSYS_SCRITICAL; |
1684 | break; |
1685 | |
1686 | case IPMI_SENSOR_TYPE_PWRSUPPLY: |
1687 | /* Reading: 1 = present+powered, 0 = otherwise */ |
1688 | edata->value_cur = (reading[2] & 1) ? 0 : 1; |
1689 | if (reading[2] & 0x10) { |
1690 | /* XXX: Need envsys type for Power Supply types |
1691 | * ok: power supply installed && powered |
1692 | * warn: power supply installed && !powered |
1693 | * crit: power supply !installed |
1694 | */ |
1695 | return ENVSYS_SCRITICAL; |
1696 | } |
1697 | if (reading[2] & 0x08) { |
1698 | /* Power supply AC lost */ |
1699 | return ENVSYS_SWARNOVER; |
1700 | } |
1701 | break; |
1702 | } |
1703 | |
1704 | return ENVSYS_SVALID; |
1705 | } |
1706 | |
1707 | int |
1708 | read_sensor(struct ipmi_softc *sc, struct ipmi_sensor *psensor) |
1709 | { |
1710 | struct sdrtype1 *s1 = (struct sdrtype1 *) psensor->i_sdr; |
1711 | uint8_t data[8]; |
1712 | int rxlen; |
1713 | envsys_data_t *edata = &sc->sc_sensor[psensor->i_envnum]; |
1714 | |
1715 | memset(data, 0, sizeof(data)); |
1716 | data[0] = psensor->i_num; |
1717 | |
1718 | mutex_enter(&sc->sc_cmd_mtx); |
1719 | if (ipmi_sendcmd(sc, s1->owner_id, s1->owner_lun, SE_NETFN, |
1720 | SE_GET_SENSOR_READING, 1, data)) |
1721 | goto err; |
1722 | |
1723 | if (ipmi_recvcmd(sc, sizeof(data), &rxlen, data)) |
1724 | goto err; |
1725 | mutex_exit(&sc->sc_cmd_mtx); |
1726 | |
1727 | dbg_printf(10, "m=%u, m_tolerance=%u, b=%u, b_accuracy=%u, rbexp=%u, linear=%d\n" , |
1728 | s1->m, s1->m_tolerance, s1->b, s1->b_accuracy, s1->rbexp, s1->linear); |
1729 | dbg_printf(10, "values=%.2x %.2x %.2x %.2x %s\n" , |
1730 | data[0],data[1],data[2],data[3], edata->desc); |
1731 | if (IPMI_INVALID_SENSOR_P(data[1])) { |
1732 | /* Check if sensor is valid */ |
1733 | edata->state = ENVSYS_SINVALID; |
1734 | } else { |
1735 | edata->state = ipmi_sensor_status(sc, psensor, edata, data); |
1736 | } |
1737 | return 0; |
1738 | err: |
1739 | mutex_exit(&sc->sc_cmd_mtx); |
1740 | return -1; |
1741 | } |
1742 | |
1743 | int |
1744 | ipmi_sensor_type(int type, int ext_type, int entity) |
1745 | { |
1746 | switch (ext_type << 8L | type) { |
1747 | case IPMI_SENSOR_TYPE_TEMP: |
1748 | return (ENVSYS_STEMP); |
1749 | |
1750 | case IPMI_SENSOR_TYPE_VOLT: |
1751 | return (ENVSYS_SVOLTS_DC); |
1752 | |
1753 | case IPMI_SENSOR_TYPE_FAN: |
1754 | return (ENVSYS_SFANRPM); |
1755 | |
1756 | case IPMI_SENSOR_TYPE_PWRSUPPLY: |
1757 | if (entity == IPMI_ENTITY_PWRSUPPLY) |
1758 | return (ENVSYS_INDICATOR); |
1759 | break; |
1760 | |
1761 | case IPMI_SENSOR_TYPE_INTRUSION: |
1762 | return (ENVSYS_INDICATOR); |
1763 | } |
1764 | |
1765 | return (-1); |
1766 | } |
1767 | |
1768 | /* Add Sensor to BSD Sysctl interface */ |
1769 | int |
1770 | add_sdr_sensor(struct ipmi_softc *sc, uint8_t *psdr) |
1771 | { |
1772 | int rc; |
1773 | struct sdrtype1 *s1 = (struct sdrtype1 *)psdr; |
1774 | struct sdrtype2 *s2 = (struct sdrtype2 *)psdr; |
1775 | char name[64]; |
1776 | |
1777 | switch (s1->sdrhdr.record_type) { |
1778 | case IPMI_SDR_TYPEFULL: |
1779 | ipmi_sensor_name(name, sizeof(name), s1->typelen, s1->name); |
1780 | rc = add_child_sensors(sc, psdr, 1, s1->sensor_num, |
1781 | s1->sensor_type, s1->event_code, 0, s1->entity_id, name); |
1782 | break; |
1783 | |
1784 | case IPMI_SDR_TYPECOMPACT: |
1785 | ipmi_sensor_name(name, sizeof(name), s2->typelen, s2->name); |
1786 | rc = add_child_sensors(sc, psdr, s2->share1 & 0xF, |
1787 | s2->sensor_num, s2->sensor_type, s2->event_code, |
1788 | s2->share2 & 0x7F, s2->entity_id, name); |
1789 | break; |
1790 | |
1791 | default: |
1792 | return (0); |
1793 | } |
1794 | |
1795 | return rc; |
1796 | } |
1797 | |
1798 | static int |
1799 | ipmi_is_dupname(char *name) |
1800 | { |
1801 | struct ipmi_sensor *ipmi_s; |
1802 | |
1803 | SLIST_FOREACH(ipmi_s, &ipmi_sensor_list, i_list) { |
1804 | if (strcmp(ipmi_s->i_envdesc, name) == 0) { |
1805 | return 1; |
1806 | } |
1807 | } |
1808 | return 0; |
1809 | } |
1810 | |
1811 | int |
1812 | add_child_sensors(struct ipmi_softc *sc, uint8_t *psdr, int count, |
1813 | int sensor_num, int sensor_type, int ext_type, int sensor_base, |
1814 | int entity, const char *name) |
1815 | { |
1816 | int typ, idx, dupcnt, c; |
1817 | char *e; |
1818 | struct ipmi_sensor *psensor; |
1819 | struct sdrtype1 *s1 = (struct sdrtype1 *)psdr; |
1820 | |
1821 | typ = ipmi_sensor_type(sensor_type, ext_type, entity); |
1822 | if (typ == -1) { |
1823 | dbg_printf(5, "Unknown sensor type:%.2x et:%.2x sn:%.2x " |
1824 | "name:%s\n" , sensor_type, ext_type, sensor_num, name); |
1825 | return 0; |
1826 | } |
1827 | dupcnt = 0; |
1828 | sc->sc_nsensors += count; |
1829 | for (idx = 0; idx < count; idx++) { |
1830 | psensor = malloc(sizeof(struct ipmi_sensor), M_DEVBUF, |
1831 | M_WAITOK|M_CANFAIL); |
1832 | if (psensor == NULL) |
1833 | break; |
1834 | |
1835 | memset(psensor, 0, sizeof(struct ipmi_sensor)); |
1836 | |
1837 | /* Initialize BSD Sensor info */ |
1838 | psensor->i_sdr = psdr; |
1839 | psensor->i_num = sensor_num + idx; |
1840 | psensor->i_stype = sensor_type; |
1841 | psensor->i_etype = ext_type; |
1842 | psensor->i_envtype = typ; |
1843 | if (count > 1) |
1844 | snprintf(psensor->i_envdesc, |
1845 | sizeof(psensor->i_envdesc), |
1846 | "%s - %d" , name, sensor_base + idx); |
1847 | else |
1848 | strlcpy(psensor->i_envdesc, name, |
1849 | sizeof(psensor->i_envdesc)); |
1850 | |
1851 | /* |
1852 | * Check for duplicates. If there are duplicates, |
1853 | * make sure there is space in the name (if not, |
1854 | * truncate to make space) for a count (1-99) to |
1855 | * add to make the name unique. If we run the |
1856 | * counter out, just accept the duplicate (@name99) |
1857 | * for now. |
1858 | */ |
1859 | if (ipmi_is_dupname(psensor->i_envdesc)) { |
1860 | if (strlen(psensor->i_envdesc) >= |
1861 | sizeof(psensor->i_envdesc) - 3) { |
1862 | e = psensor->i_envdesc + |
1863 | sizeof(psensor->i_envdesc) - 3; |
1864 | } else { |
1865 | e = psensor->i_envdesc + |
1866 | strlen(psensor->i_envdesc); |
1867 | } |
1868 | c = psensor->i_envdesc + |
1869 | sizeof(psensor->i_envdesc) - e; |
1870 | do { |
1871 | dupcnt++; |
1872 | snprintf(e, c, "%d" , dupcnt); |
1873 | } while (dupcnt < 100 && |
1874 | ipmi_is_dupname(psensor->i_envdesc)); |
1875 | } |
1876 | |
1877 | dbg_printf(5, "add sensor:%.4x %.2x:%d ent:%.2x:%.2x %s\n" , |
1878 | s1->sdrhdr.record_id, s1->sensor_type, |
1879 | typ, s1->entity_id, s1->entity_instance, |
1880 | psensor->i_envdesc); |
1881 | SLIST_INSERT_HEAD(&ipmi_sensor_list, psensor, i_list); |
1882 | } |
1883 | |
1884 | return (1); |
1885 | } |
1886 | |
1887 | /* Interrupt handler */ |
1888 | int |
1889 | ipmi_intr(void *arg) |
1890 | { |
1891 | struct ipmi_softc *sc = (struct ipmi_softc *)arg; |
1892 | int v; |
1893 | |
1894 | v = bmc_read(sc, _KCS_STATUS_REGISTER); |
1895 | if (v & KCS_OBF) |
1896 | ++ipmi_nintr; |
1897 | |
1898 | return (0); |
1899 | } |
1900 | |
1901 | /* Handle IPMI Timer - reread sensor values */ |
1902 | void |
1903 | ipmi_refresh_sensors(struct ipmi_softc *sc) |
1904 | { |
1905 | |
1906 | if (SLIST_EMPTY(&ipmi_sensor_list)) |
1907 | return; |
1908 | |
1909 | sc->current_sensor = SLIST_NEXT(sc->current_sensor, i_list); |
1910 | if (sc->current_sensor == NULL) |
1911 | sc->current_sensor = SLIST_FIRST(&ipmi_sensor_list); |
1912 | |
1913 | if (read_sensor(sc, sc->current_sensor)) { |
1914 | dbg_printf(1, "ipmi: error reading\n" ); |
1915 | } |
1916 | } |
1917 | |
1918 | int |
1919 | ipmi_map_regs(struct ipmi_softc *sc, struct ipmi_attach_args *ia) |
1920 | { |
1921 | sc->sc_if = ipmi_get_if(ia->iaa_if_type); |
1922 | if (sc->sc_if == NULL) |
1923 | return (-1); |
1924 | |
1925 | if (ia->iaa_if_iotype == 'i') |
1926 | sc->sc_iot = ia->iaa_iot; |
1927 | else |
1928 | sc->sc_iot = ia->iaa_memt; |
1929 | |
1930 | sc->sc_if_rev = ia->iaa_if_rev; |
1931 | sc->sc_if_iospacing = ia->iaa_if_iospacing; |
1932 | if (bus_space_map(sc->sc_iot, ia->iaa_if_iobase, |
1933 | sc->sc_if->nregs * sc->sc_if_iospacing, |
1934 | 0, &sc->sc_ioh)) { |
1935 | printf("ipmi: bus_space_map(..., %x, %x, 0, %p) failed\n" , |
1936 | ia->iaa_if_iobase, |
1937 | sc->sc_if->nregs * sc->sc_if_iospacing, &sc->sc_ioh); |
1938 | return (-1); |
1939 | } |
1940 | #if 0 |
1941 | if (iaa->if_if_irq != -1) |
1942 | sc->ih = isa_intr_establish(-1, iaa->if_if_irq, |
1943 | iaa->if_irqlvl, IPL_BIO, ipmi_intr, sc, |
1944 | device_xname(sc->sc_dev); |
1945 | #endif |
1946 | return (0); |
1947 | } |
1948 | |
1949 | void |
1950 | ipmi_unmap_regs(struct ipmi_softc *sc) |
1951 | { |
1952 | bus_space_unmap(sc->sc_iot, sc->sc_ioh, |
1953 | sc->sc_if->nregs * sc->sc_if_iospacing); |
1954 | } |
1955 | |
1956 | int |
1957 | ipmi_probe(struct ipmi_attach_args *ia) |
1958 | { |
1959 | struct dmd_ipmi *pipmi; |
1960 | struct smbtable tbl; |
1961 | |
1962 | tbl.cookie = 0; |
1963 | |
1964 | if (smbios_find_table(SMBIOS_TYPE_IPMIDEV, &tbl)) |
1965 | ipmi_smbios_probe(tbl.tblhdr, ia); |
1966 | else { |
1967 | pipmi = (struct dmd_ipmi *)scan_sig(0xC0000L, 0xFFFFFL, 16, 4, |
1968 | "IPMI" ); |
1969 | /* XXX hack to find Dell PowerEdge 8450 */ |
1970 | if (pipmi == NULL) { |
1971 | /* no IPMI found */ |
1972 | return (0); |
1973 | } |
1974 | |
1975 | /* we have an IPMI signature, fill in attach arg structure */ |
1976 | ia->iaa_if_type = pipmi->dmd_if_type; |
1977 | ia->iaa_if_rev = pipmi->dmd_if_rev; |
1978 | } |
1979 | |
1980 | return (1); |
1981 | } |
1982 | |
1983 | int |
1984 | ipmi_match(device_t parent, cfdata_t cf, void *aux) |
1985 | { |
1986 | struct ipmi_softc sc; |
1987 | struct ipmi_attach_args *ia = aux; |
1988 | uint8_t cmd[32]; |
1989 | int len; |
1990 | int rv = 0; |
1991 | |
1992 | memset(&sc, 0, sizeof(sc)); |
1993 | |
1994 | /* Map registers */ |
1995 | if (ipmi_map_regs(&sc, ia) != 0) |
1996 | return 0; |
1997 | |
1998 | sc.sc_if->probe(&sc); |
1999 | |
2000 | mutex_init(&sc.sc_cmd_mtx, MUTEX_DEFAULT, IPL_SOFTCLOCK); |
2001 | cv_init(&sc.sc_cmd_sleep, "ipmimtch" ); |
2002 | mutex_enter(&sc.sc_cmd_mtx); |
2003 | /* Identify BMC device early to detect lying bios */ |
2004 | if (ipmi_sendcmd(&sc, BMC_SA, 0, APP_NETFN, APP_GET_DEVICE_ID, |
2005 | 0, NULL)) { |
2006 | mutex_exit(&sc.sc_cmd_mtx); |
2007 | dbg_printf(1, ": unable to send get device id " |
2008 | "command\n" ); |
2009 | goto unmap; |
2010 | } |
2011 | if (ipmi_recvcmd(&sc, sizeof(cmd), &len, cmd)) { |
2012 | mutex_exit(&sc.sc_cmd_mtx); |
2013 | dbg_printf(1, ": unable to retrieve device id\n" ); |
2014 | goto unmap; |
2015 | } |
2016 | mutex_exit(&sc.sc_cmd_mtx); |
2017 | |
2018 | dbg_dump(1, "bmc data" , len, cmd); |
2019 | rv = 1; /* GETID worked, we got IPMI */ |
2020 | unmap: |
2021 | cv_destroy(&sc.sc_cmd_sleep); |
2022 | mutex_destroy(&sc.sc_cmd_mtx); |
2023 | ipmi_unmap_regs(&sc); |
2024 | |
2025 | return rv; |
2026 | } |
2027 | |
2028 | static void |
2029 | ipmi_thread(void *cookie) |
2030 | { |
2031 | device_t self = cookie; |
2032 | struct ipmi_softc *sc = device_private(self); |
2033 | struct ipmi_attach_args *ia = &sc->sc_ia; |
2034 | uint16_t rec; |
2035 | struct ipmi_sensor *ipmi_s; |
2036 | int i; |
2037 | |
2038 | sc->sc_thread_running = true; |
2039 | |
2040 | /* setup ticker */ |
2041 | sc->sc_max_retries = hz * 90; /* 90 seconds max */ |
2042 | |
2043 | /* Map registers */ |
2044 | ipmi_map_regs(sc, ia); |
2045 | |
2046 | /* Scan SDRs, add sensors to list */ |
2047 | for (rec = 0; rec != 0xFFFF;) |
2048 | if (get_sdr(sc, rec, &rec)) |
2049 | break; |
2050 | |
2051 | /* allocate and fill sensor arrays */ |
2052 | sc->sc_sensor = |
2053 | malloc(sizeof(envsys_data_t) * sc->sc_nsensors, |
2054 | M_DEVBUF, M_WAITOK | M_ZERO); |
2055 | if (sc->sc_sensor == NULL) { |
2056 | aprint_error("ipmi: can't allocate envsys_data_t\n" ); |
2057 | kthread_exit(0); |
2058 | } |
2059 | |
2060 | sc->sc_envsys = sysmon_envsys_create(); |
2061 | sc->sc_envsys->sme_cookie = sc; |
2062 | sc->sc_envsys->sme_get_limits = ipmi_get_limits; |
2063 | sc->sc_envsys->sme_set_limits = ipmi_set_limits; |
2064 | |
2065 | i = 0; |
2066 | SLIST_FOREACH(ipmi_s, &ipmi_sensor_list, i_list) { |
2067 | ipmi_s->i_props = 0; |
2068 | ipmi_s->i_envnum = -1; |
2069 | sc->sc_sensor[i].units = ipmi_s->i_envtype; |
2070 | sc->sc_sensor[i].state = ENVSYS_SINVALID; |
2071 | sc->sc_sensor[i].flags |= ENVSYS_FHAS_ENTROPY; |
2072 | /* |
2073 | * Monitor threshold limits in the sensors. |
2074 | */ |
2075 | switch (sc->sc_sensor[i].units) { |
2076 | case ENVSYS_STEMP: |
2077 | case ENVSYS_SVOLTS_DC: |
2078 | case ENVSYS_SFANRPM: |
2079 | sc->sc_sensor[i].flags |= ENVSYS_FMONLIMITS; |
2080 | break; |
2081 | default: |
2082 | sc->sc_sensor[i].flags |= ENVSYS_FMONCRITICAL; |
2083 | } |
2084 | (void)strlcpy(sc->sc_sensor[i].desc, ipmi_s->i_envdesc, |
2085 | sizeof(sc->sc_sensor[i].desc)); |
2086 | ++i; |
2087 | |
2088 | if (sysmon_envsys_sensor_attach(sc->sc_envsys, |
2089 | &sc->sc_sensor[i-1])) |
2090 | continue; |
2091 | |
2092 | /* get reference number from envsys */ |
2093 | ipmi_s->i_envnum = sc->sc_sensor[i-1].sensor; |
2094 | } |
2095 | |
2096 | sc->sc_envsys->sme_name = device_xname(sc->sc_dev); |
2097 | sc->sc_envsys->sme_flags = SME_DISABLE_REFRESH; |
2098 | |
2099 | if (sysmon_envsys_register(sc->sc_envsys)) { |
2100 | aprint_error("ipmi: unable to register with sysmon\n" ); |
2101 | sysmon_envsys_destroy(sc->sc_envsys); |
2102 | } |
2103 | |
2104 | /* initialize sensor list for thread */ |
2105 | if (!SLIST_EMPTY(&ipmi_sensor_list)) |
2106 | sc->current_sensor = SLIST_FIRST(&ipmi_sensor_list); |
2107 | |
2108 | aprint_verbose_dev(self, "version %d.%d interface %s %sbase " |
2109 | "0x%x/%x spacing %d\n" , |
2110 | ia->iaa_if_rev >> 4, ia->iaa_if_rev & 0xF, sc->sc_if->name, |
2111 | ia->iaa_if_iotype == 'i' ? "io" : "mem" , ia->iaa_if_iobase, |
2112 | ia->iaa_if_iospacing * sc->sc_if->nregs, ia->iaa_if_iospacing); |
2113 | if (ia->iaa_if_irq != -1) |
2114 | aprint_verbose_dev(self, " irq %d\n" , ia->iaa_if_irq); |
2115 | |
2116 | /* setup flag to exclude iic */ |
2117 | ipmi_enabled = 1; |
2118 | |
2119 | /* Setup Watchdog timer */ |
2120 | sc->sc_wdog.smw_name = device_xname(sc->sc_dev); |
2121 | sc->sc_wdog.smw_cookie = sc; |
2122 | sc->sc_wdog.smw_setmode = ipmi_watchdog_setmode; |
2123 | sc->sc_wdog.smw_tickle = ipmi_watchdog_tickle; |
2124 | sysmon_wdog_register(&sc->sc_wdog); |
2125 | |
2126 | /* Set up a power handler so we can possibly sleep */ |
2127 | if (!pmf_device_register(self, ipmi_suspend, NULL)) |
2128 | aprint_error_dev(self, "couldn't establish a power handler\n" ); |
2129 | |
2130 | mutex_enter(&sc->sc_poll_mtx); |
2131 | while (sc->sc_thread_running) { |
2132 | ipmi_refresh_sensors(sc); |
2133 | cv_timedwait(&sc->sc_poll_cv, &sc->sc_poll_mtx, |
2134 | SENSOR_REFRESH_RATE); |
2135 | if (sc->sc_tickle_due) { |
2136 | ipmi_dotickle(sc); |
2137 | sc->sc_tickle_due = false; |
2138 | } |
2139 | } |
2140 | mutex_exit(&sc->sc_poll_mtx); |
2141 | kthread_exit(0); |
2142 | } |
2143 | |
2144 | void |
2145 | ipmi_attach(device_t parent, device_t self, void *aux) |
2146 | { |
2147 | struct ipmi_softc *sc = device_private(self); |
2148 | |
2149 | sc->sc_ia = *(struct ipmi_attach_args *)aux; |
2150 | sc->sc_dev = self; |
2151 | aprint_naive("\n" ); |
2152 | aprint_normal("\n" ); |
2153 | |
2154 | /* lock around read_sensor so that no one messes with the bmc regs */ |
2155 | mutex_init(&sc->sc_cmd_mtx, MUTEX_DEFAULT, IPL_SOFTCLOCK); |
2156 | mutex_init(&sc->sc_sleep_mtx, MUTEX_DEFAULT, IPL_SOFTCLOCK); |
2157 | cv_init(&sc->sc_cmd_sleep, "ipmicmd" ); |
2158 | |
2159 | mutex_init(&sc->sc_poll_mtx, MUTEX_DEFAULT, IPL_SOFTCLOCK); |
2160 | cv_init(&sc->sc_poll_cv, "ipmipoll" ); |
2161 | |
2162 | if (kthread_create(PRI_NONE, 0, NULL, ipmi_thread, self, |
2163 | &sc->sc_kthread, "ipmi" ) != 0) { |
2164 | aprint_error("ipmi: unable to create thread, disabled\n" ); |
2165 | } |
2166 | } |
2167 | |
2168 | static int |
2169 | ipmi_detach(device_t self, int flags) |
2170 | { |
2171 | struct ipmi_sensor *i; |
2172 | int rc; |
2173 | struct ipmi_softc *sc = device_private(self); |
2174 | |
2175 | mutex_enter(&sc->sc_poll_mtx); |
2176 | sc->sc_thread_running = false; |
2177 | cv_signal(&sc->sc_poll_cv); |
2178 | mutex_exit(&sc->sc_poll_mtx); |
2179 | |
2180 | if ((rc = sysmon_wdog_unregister(&sc->sc_wdog)) != 0) { |
2181 | if (rc == ERESTART) |
2182 | rc = EINTR; |
2183 | return rc; |
2184 | } |
2185 | |
2186 | /* cancel any pending countdown */ |
2187 | sc->sc_wdog.smw_mode &= ~WDOG_MODE_MASK; |
2188 | sc->sc_wdog.smw_mode |= WDOG_MODE_DISARMED; |
2189 | sc->sc_wdog.smw_period = WDOG_PERIOD_DEFAULT; |
2190 | |
2191 | if ((rc = ipmi_watchdog_setmode(&sc->sc_wdog)) != 0) |
2192 | return rc; |
2193 | |
2194 | ipmi_enabled = 0; |
2195 | |
2196 | if (sc->sc_envsys != NULL) { |
2197 | /* _unregister also destroys */ |
2198 | sysmon_envsys_unregister(sc->sc_envsys); |
2199 | sc->sc_envsys = NULL; |
2200 | } |
2201 | |
2202 | while ((i = SLIST_FIRST(&ipmi_sensor_list)) != NULL) { |
2203 | SLIST_REMOVE_HEAD(&ipmi_sensor_list, i_list); |
2204 | free(i, M_DEVBUF); |
2205 | } |
2206 | |
2207 | if (sc->sc_sensor != NULL) { |
2208 | free(sc->sc_sensor, M_DEVBUF); |
2209 | sc->sc_sensor = NULL; |
2210 | } |
2211 | |
2212 | ipmi_unmap_regs(sc); |
2213 | |
2214 | cv_destroy(&sc->sc_poll_cv); |
2215 | mutex_destroy(&sc->sc_poll_mtx); |
2216 | cv_destroy(&sc->sc_cmd_sleep); |
2217 | mutex_destroy(&sc->sc_sleep_mtx); |
2218 | mutex_destroy(&sc->sc_cmd_mtx); |
2219 | |
2220 | return 0; |
2221 | } |
2222 | |
2223 | int |
2224 | ipmi_watchdog_setmode(struct sysmon_wdog *smwdog) |
2225 | { |
2226 | struct ipmi_softc *sc = smwdog->smw_cookie; |
2227 | struct ipmi_get_watchdog gwdog; |
2228 | struct ipmi_set_watchdog swdog; |
2229 | int rc, len; |
2230 | |
2231 | if (smwdog->smw_period < 10) |
2232 | return EINVAL; |
2233 | if (smwdog->smw_period == WDOG_PERIOD_DEFAULT) |
2234 | sc->sc_wdog.smw_period = 10; |
2235 | else |
2236 | sc->sc_wdog.smw_period = smwdog->smw_period; |
2237 | |
2238 | mutex_enter(&sc->sc_cmd_mtx); |
2239 | /* see if we can properly task to the watchdog */ |
2240 | rc = ipmi_sendcmd(sc, BMC_SA, BMC_LUN, APP_NETFN, |
2241 | APP_GET_WATCHDOG_TIMER, 0, NULL); |
2242 | rc = ipmi_recvcmd(sc, sizeof(gwdog), &len, &gwdog); |
2243 | mutex_exit(&sc->sc_cmd_mtx); |
2244 | if (rc) { |
2245 | printf("ipmi: APP_GET_WATCHDOG_TIMER returned 0x%x\n" , rc); |
2246 | return EIO; |
2247 | } |
2248 | |
2249 | memset(&swdog, 0, sizeof(swdog)); |
2250 | /* Period is 10ths/sec */ |
2251 | swdog.wdog_timeout = htole16(sc->sc_wdog.smw_period * 10); |
2252 | if ((smwdog->smw_mode & WDOG_MODE_MASK) == WDOG_MODE_DISARMED) |
2253 | swdog.wdog_action = IPMI_WDOG_ACT_DISABLED; |
2254 | else |
2255 | swdog.wdog_action = IPMI_WDOG_ACT_RESET; |
2256 | swdog.wdog_use = IPMI_WDOG_USE_USE_OS; |
2257 | |
2258 | mutex_enter(&sc->sc_cmd_mtx); |
2259 | if ((rc = ipmi_sendcmd(sc, BMC_SA, BMC_LUN, APP_NETFN, |
2260 | APP_SET_WATCHDOG_TIMER, sizeof(swdog), &swdog)) == 0) |
2261 | rc = ipmi_recvcmd(sc, 0, &len, NULL); |
2262 | mutex_exit(&sc->sc_cmd_mtx); |
2263 | if (rc) { |
2264 | printf("ipmi: APP_SET_WATCHDOG_TIMER returned 0x%x\n" , rc); |
2265 | return EIO; |
2266 | } |
2267 | |
2268 | return (0); |
2269 | } |
2270 | |
2271 | int |
2272 | ipmi_watchdog_tickle(struct sysmon_wdog *smwdog) |
2273 | { |
2274 | struct ipmi_softc *sc = smwdog->smw_cookie; |
2275 | |
2276 | mutex_enter(&sc->sc_poll_mtx); |
2277 | sc->sc_tickle_due = true; |
2278 | cv_signal(&sc->sc_poll_cv); |
2279 | mutex_exit(&sc->sc_poll_mtx); |
2280 | return 0; |
2281 | } |
2282 | |
2283 | void |
2284 | ipmi_dotickle(struct ipmi_softc *sc) |
2285 | { |
2286 | int rc, len; |
2287 | |
2288 | mutex_enter(&sc->sc_cmd_mtx); |
2289 | /* tickle the watchdog */ |
2290 | if ((rc = ipmi_sendcmd(sc, BMC_SA, BMC_LUN, APP_NETFN, |
2291 | APP_RESET_WATCHDOG, 0, NULL)) == 0) |
2292 | rc = ipmi_recvcmd(sc, 0, &len, NULL); |
2293 | mutex_exit(&sc->sc_cmd_mtx); |
2294 | if (rc != 0) { |
2295 | printf("%s: watchdog tickle returned 0x%x\n" , |
2296 | device_xname(sc->sc_dev), rc); |
2297 | } |
2298 | } |
2299 | |
2300 | bool |
2301 | ipmi_suspend(device_t dev, const pmf_qual_t *qual) |
2302 | { |
2303 | struct ipmi_softc *sc = device_private(dev); |
2304 | |
2305 | /* Don't allow suspend if watchdog is armed */ |
2306 | if ((sc->sc_wdog.smw_mode & WDOG_MODE_MASK) != WDOG_MODE_DISARMED) |
2307 | return false; |
2308 | return true; |
2309 | } |
2310 | |