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xfs: remove unused XFS_BMAPI_ flags
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / sfc / mcdi.c
blob93cc3c1b9450b28cb0587617855818af8de580e5
1 /****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2008-2009 Solarflare Communications Inc.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published
7 * by the Free Software Foundation, incorporated herein by reference.
8 */
9
10 #include <linux/delay.h>
11 #include "net_driver.h"
12 #include "nic.h"
13 #include "io.h"
14 #include "regs.h"
15 #include "mcdi_pcol.h"
16 #include "phy.h"
17
18 /**************************************************************************
19 *
20 * Management-Controller-to-Driver Interface
21 *
22 **************************************************************************
23 */
24
25 /* Software-defined structure to the shared-memory */
26 #define CMD_NOTIFY_PORT0 0
27 #define CMD_NOTIFY_PORT1 4
28 #define CMD_PDU_PORT0 0x008
29 #define CMD_PDU_PORT1 0x108
30 #define REBOOT_FLAG_PORT0 0x3f8
31 #define REBOOT_FLAG_PORT1 0x3fc
32
33 #define MCDI_RPC_TIMEOUT 10 /*seconds */
34
35 #define MCDI_PDU(efx) \
36 (efx_port_num(efx) ? CMD_PDU_PORT1 : CMD_PDU_PORT0)
37 #define MCDI_DOORBELL(efx) \
38 (efx_port_num(efx) ? CMD_NOTIFY_PORT1 : CMD_NOTIFY_PORT0)
39 #define MCDI_REBOOT_FLAG(efx) \
40 (efx_port_num(efx) ? REBOOT_FLAG_PORT1 : REBOOT_FLAG_PORT0)
41
42 #define SEQ_MASK \
43 EFX_MASK32(EFX_WIDTH(MCDI_HEADER_SEQ))
44
45 static inline struct efx_mcdi_iface *efx_mcdi(struct efx_nic *efx)
46 {
47 struct siena_nic_data *nic_data;
48 EFX_BUG_ON_PARANOID(efx_nic_rev(efx) < EFX_REV_SIENA_A0);
49 nic_data = efx->nic_data;
50 return &nic_data->mcdi;
51 }
52
53 void efx_mcdi_init(struct efx_nic *efx)
54 {
55 struct efx_mcdi_iface *mcdi;
56
57 if (efx_nic_rev(efx) < EFX_REV_SIENA_A0)
58 return;
59
60 mcdi = efx_mcdi(efx);
61 init_waitqueue_head(&mcdi->wq);
62 spin_lock_init(&mcdi->iface_lock);
63 atomic_set(&mcdi->state, MCDI_STATE_QUIESCENT);
64 mcdi->mode = MCDI_MODE_POLL;
65
66 (void) efx_mcdi_poll_reboot(efx);
67 }
68
69 static void efx_mcdi_copyin(struct efx_nic *efx, unsigned cmd,
70 const u8 *inbuf, size_t inlen)
71 {
72 struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
73 unsigned pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx);
74 unsigned doorbell = FR_CZ_MC_TREG_SMEM + MCDI_DOORBELL(efx);
75 unsigned int i;
76 efx_dword_t hdr;
77 u32 xflags, seqno;
78
79 BUG_ON(atomic_read(&mcdi->state) == MCDI_STATE_QUIESCENT);
80 BUG_ON(inlen & 3 || inlen >= 0x100);
81
82 seqno = mcdi->seqno & SEQ_MASK;
83 xflags = 0;
84 if (mcdi->mode == MCDI_MODE_EVENTS)
85 xflags |= MCDI_HEADER_XFLAGS_EVREQ;
86
87 EFX_POPULATE_DWORD_6(hdr,
88 MCDI_HEADER_RESPONSE, 0,
89 MCDI_HEADER_RESYNC, 1,
90 MCDI_HEADER_CODE, cmd,
91 MCDI_HEADER_DATALEN, inlen,
92 MCDI_HEADER_SEQ, seqno,
93 MCDI_HEADER_XFLAGS, xflags);
94
95 efx_writed(efx, &hdr, pdu);
96
97 for (i = 0; i < inlen; i += 4)
98 _efx_writed(efx, *((__le32 *)(inbuf + i)), pdu + 4 + i);
99
100 /* Ensure the payload is written out before the header */
101 wmb();
102
103 /* ring the doorbell with a distinctive value */
104 _efx_writed(efx, (__force __le32) 0x45789abc, doorbell);
105 }
106
107 static void efx_mcdi_copyout(struct efx_nic *efx, u8 *outbuf, size_t outlen)
108 {
109 struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
110 unsigned int pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx);
111 int i;
112
113 BUG_ON(atomic_read(&mcdi->state) == MCDI_STATE_QUIESCENT);
114 BUG_ON(outlen & 3 || outlen >= 0x100);
115
116 for (i = 0; i < outlen; i += 4)
117 *((__le32 *)(outbuf + i)) = _efx_readd(efx, pdu + 4 + i);
118 }
119
120 static int efx_mcdi_poll(struct efx_nic *efx)
121 {
122 struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
123 unsigned int time, finish;
124 unsigned int respseq, respcmd, error;
125 unsigned int pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx);
126 unsigned int rc, spins;
127 efx_dword_t reg;
128
129 /* Check for a reboot atomically with respect to efx_mcdi_copyout() */
130 rc = -efx_mcdi_poll_reboot(efx);
131 if (rc)
132 goto out;
133
134 /* Poll for completion. Poll quickly (once a us) for the 1st jiffy,
135 * because generally mcdi responses are fast. After that, back off
136 * and poll once a jiffy (approximately)
137 */
138 spins = TICK_USEC;
139 finish = get_seconds() + MCDI_RPC_TIMEOUT;
140
141 while (1) {
142 if (spins != 0) {
143 --spins;
144 udelay(1);
145 } else {
146 schedule_timeout_uninterruptible(1);
147 }
148
149 time = get_seconds();
150
151 rmb();
152 efx_readd(efx, &reg, pdu);
153
154 /* All 1's indicates that shared memory is in reset (and is
155 * not a valid header). Wait for it to come out reset before
156 * completing the command */
157 if (EFX_DWORD_FIELD(reg, EFX_DWORD_0) != 0xffffffff &&
158 EFX_DWORD_FIELD(reg, MCDI_HEADER_RESPONSE))
159 break;
160
161 if (time >= finish)
162 return -ETIMEDOUT;
163 }
164
165 mcdi->resplen = EFX_DWORD_FIELD(reg, MCDI_HEADER_DATALEN);
166 respseq = EFX_DWORD_FIELD(reg, MCDI_HEADER_SEQ);
167 respcmd = EFX_DWORD_FIELD(reg, MCDI_HEADER_CODE);
168 error = EFX_DWORD_FIELD(reg, MCDI_HEADER_ERROR);
169
170 if (error && mcdi->resplen == 0) {
171 EFX_ERR(efx, "MC rebooted\n");
172 rc = EIO;
173 } else if ((respseq ^ mcdi->seqno) & SEQ_MASK) {
174 EFX_ERR(efx, "MC response mismatch tx seq 0x%x rx seq 0x%x\n",
175 respseq, mcdi->seqno);
176 rc = EIO;
177 } else if (error) {
178 efx_readd(efx, &reg, pdu + 4);
179 switch (EFX_DWORD_FIELD(reg, EFX_DWORD_0)) {
180 #define TRANSLATE_ERROR(name) \
181 case MC_CMD_ERR_ ## name: \
182 rc = name; \
183 break
184 TRANSLATE_ERROR(ENOENT);
185 TRANSLATE_ERROR(EINTR);
186 TRANSLATE_ERROR(EACCES);
187 TRANSLATE_ERROR(EBUSY);
188 TRANSLATE_ERROR(EINVAL);
189 TRANSLATE_ERROR(EDEADLK);
190 TRANSLATE_ERROR(ENOSYS);
191 TRANSLATE_ERROR(ETIME);
192 #undef TRANSLATE_ERROR
193 default:
194 rc = EIO;
195 break;
196 }
197 } else
198 rc = 0;
199
200 out:
201 mcdi->resprc = rc;
202 if (rc)
203 mcdi->resplen = 0;
204
205 /* Return rc=0 like wait_event_timeout() */
206 return 0;
207 }
208
209 /* Test and clear MC-rebooted flag for this port/function */
210 int efx_mcdi_poll_reboot(struct efx_nic *efx)
211 {
212 unsigned int addr = FR_CZ_MC_TREG_SMEM + MCDI_REBOOT_FLAG(efx);
213 efx_dword_t reg;
214 uint32_t value;
215
216 if (efx_nic_rev(efx) < EFX_REV_SIENA_A0)
217 return false;
218
219 efx_readd(efx, &reg, addr);
220 value = EFX_DWORD_FIELD(reg, EFX_DWORD_0);
221
222 if (value == 0)
223 return 0;
224
225 EFX_ZERO_DWORD(reg);
226 efx_writed(efx, &reg, addr);
227
228 if (value == MC_STATUS_DWORD_ASSERT)
229 return -EINTR;
230 else
231 return -EIO;
232 }
233
234 static void efx_mcdi_acquire(struct efx_mcdi_iface *mcdi)
235 {
236 /* Wait until the interface becomes QUIESCENT and we win the race
237 * to mark it RUNNING. */
238 wait_event(mcdi->wq,
239 atomic_cmpxchg(&mcdi->state,
240 MCDI_STATE_QUIESCENT,
241 MCDI_STATE_RUNNING)
242 == MCDI_STATE_QUIESCENT);
243 }
244
245 static int efx_mcdi_await_completion(struct efx_nic *efx)
246 {
247 struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
248
249 if (wait_event_timeout(
250 mcdi->wq,
251 atomic_read(&mcdi->state) == MCDI_STATE_COMPLETED,
252 msecs_to_jiffies(MCDI_RPC_TIMEOUT * 1000)) == 0)
253 return -ETIMEDOUT;
254
255 /* Check if efx_mcdi_set_mode() switched us back to polled completions.
256 * In which case, poll for completions directly. If efx_mcdi_ev_cpl()
257 * completed the request first, then we'll just end up completing the
258 * request again, which is safe.
259 *
260 * We need an smp_rmb() to synchronise with efx_mcdi_mode_poll(), which
261 * wait_event_timeout() implicitly provides.
262 */
263 if (mcdi->mode == MCDI_MODE_POLL)
264 return efx_mcdi_poll(efx);
265
266 return 0;
267 }
268
269 static bool efx_mcdi_complete(struct efx_mcdi_iface *mcdi)
270 {
271 /* If the interface is RUNNING, then move to COMPLETED and wake any
272 * waiters. If the interface isn't in RUNNING then we've received a
273 * duplicate completion after we've already transitioned back to
274 * QUIESCENT. [A subsequent invocation would increment seqno, so would
275 * have failed the seqno check].
276 */
277 if (atomic_cmpxchg(&mcdi->state,
278 MCDI_STATE_RUNNING,
279 MCDI_STATE_COMPLETED) == MCDI_STATE_RUNNING) {
280 wake_up(&mcdi->wq);
281 return true;
282 }
283
284 return false;
285 }
286
287 static void efx_mcdi_release(struct efx_mcdi_iface *mcdi)
288 {
289 atomic_set(&mcdi->state, MCDI_STATE_QUIESCENT);
290 wake_up(&mcdi->wq);
291 }
292
293 static void efx_mcdi_ev_cpl(struct efx_nic *efx, unsigned int seqno,
294 unsigned int datalen, unsigned int errno)
295 {
296 struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
297 bool wake = false;
298
299 spin_lock(&mcdi->iface_lock);
300
301 if ((seqno ^ mcdi->seqno) & SEQ_MASK) {
302 if (mcdi->credits)
303 /* The request has been cancelled */
304 --mcdi->credits;
305 else
306 EFX_ERR(efx, "MC response mismatch tx seq 0x%x rx "
307 "seq 0x%x\n", seqno, mcdi->seqno);
308 } else {
309 mcdi->resprc = errno;
310 mcdi->resplen = datalen;
311
312 wake = true;
313 }
314
315 spin_unlock(&mcdi->iface_lock);
316
317 if (wake)
318 efx_mcdi_complete(mcdi);
319 }
320
321 /* Issue the given command by writing the data into the shared memory PDU,
322 * ring the doorbell and wait for completion. Copyout the result. */
323 int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd,
324 const u8 *inbuf, size_t inlen, u8 *outbuf, size_t outlen,
325 size_t *outlen_actual)
326 {
327 struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
328 int rc;
329 BUG_ON(efx_nic_rev(efx) < EFX_REV_SIENA_A0);
330
331 efx_mcdi_acquire(mcdi);
332
333 /* Serialise with efx_mcdi_ev_cpl() and efx_mcdi_ev_death() */
334 spin_lock_bh(&mcdi->iface_lock);
335 ++mcdi->seqno;
336 spin_unlock_bh(&mcdi->iface_lock);
337
338 efx_mcdi_copyin(efx, cmd, inbuf, inlen);
339
340 if (mcdi->mode == MCDI_MODE_POLL)
341 rc = efx_mcdi_poll(efx);
342 else
343 rc = efx_mcdi_await_completion(efx);
344
345 if (rc != 0) {
346 /* Close the race with efx_mcdi_ev_cpl() executing just too late
347 * and completing a request we've just cancelled, by ensuring
348 * that the seqno check therein fails.
349 */
350 spin_lock_bh(&mcdi->iface_lock);
351 ++mcdi->seqno;
352 ++mcdi->credits;
353 spin_unlock_bh(&mcdi->iface_lock);
354
355 EFX_ERR(efx, "MC command 0x%x inlen %d mode %d timed out\n",
356 cmd, (int)inlen, mcdi->mode);
357 } else {
358 size_t resplen;
359
360 /* At the very least we need a memory barrier here to ensure
361 * we pick up changes from efx_mcdi_ev_cpl(). Protect against
362 * a spurious efx_mcdi_ev_cpl() running concurrently by
363 * acquiring the iface_lock. */
364 spin_lock_bh(&mcdi->iface_lock);
365 rc = -mcdi->resprc;
366 resplen = mcdi->resplen;
367 spin_unlock_bh(&mcdi->iface_lock);
368
369 if (rc == 0) {
370 efx_mcdi_copyout(efx, outbuf,
371 min(outlen, mcdi->resplen + 3) & ~0x3);
372 if (outlen_actual != NULL)
373 *outlen_actual = resplen;
374 } else if (cmd == MC_CMD_REBOOT && rc == -EIO)
375 ; /* Don't reset if MC_CMD_REBOOT returns EIO */
376 else if (rc == -EIO || rc == -EINTR) {
377 EFX_ERR(efx, "MC fatal error %d\n", -rc);
378 efx_schedule_reset(efx, RESET_TYPE_MC_FAILURE);
379 } else
380 EFX_ERR(efx, "MC command 0x%x inlen %d failed rc=%d\n",
381 cmd, (int)inlen, -rc);
382 }
383
384 efx_mcdi_release(mcdi);
385 return rc;
386 }
387
388 void efx_mcdi_mode_poll(struct efx_nic *efx)
389 {
390 struct efx_mcdi_iface *mcdi;
391
392 if (efx_nic_rev(efx) < EFX_REV_SIENA_A0)
393 return;
394
395 mcdi = efx_mcdi(efx);
396 if (mcdi->mode == MCDI_MODE_POLL)
397 return;
398
399 /* We can switch from event completion to polled completion, because
400 * mcdi requests are always completed in shared memory. We do this by
401 * switching the mode to POLL'd then completing the request.
402 * efx_mcdi_await_completion() will then call efx_mcdi_poll().
403 *
404 * We need an smp_wmb() to synchronise with efx_mcdi_await_completion(),
405 * which efx_mcdi_complete() provides for us.
406 */
407 mcdi->mode = MCDI_MODE_POLL;
408
409 efx_mcdi_complete(mcdi);
410 }
411
412 void efx_mcdi_mode_event(struct efx_nic *efx)
413 {
414 struct efx_mcdi_iface *mcdi;
415
416 if (efx_nic_rev(efx) < EFX_REV_SIENA_A0)
417 return;
418
419 mcdi = efx_mcdi(efx);
420
421 if (mcdi->mode == MCDI_MODE_EVENTS)
422 return;
423
424 /* We can't switch from polled to event completion in the middle of a
425 * request, because the completion method is specified in the request.
426 * So acquire the interface to serialise the requestors. We don't need
427 * to acquire the iface_lock to change the mode here, but we do need a
428 * write memory barrier ensure that efx_mcdi_rpc() sees it, which
429 * efx_mcdi_acquire() provides.
430 */
431 efx_mcdi_acquire(mcdi);
432 mcdi->mode = MCDI_MODE_EVENTS;
433 efx_mcdi_release(mcdi);
434 }
435
436 static void efx_mcdi_ev_death(struct efx_nic *efx, int rc)
437 {
438 struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
439
440 /* If there is an outstanding MCDI request, it has been terminated
441 * either by a BADASSERT or REBOOT event. If the mcdi interface is
442 * in polled mode, then do nothing because the MC reboot handler will
443 * set the header correctly. However, if the mcdi interface is waiting
444 * for a CMDDONE event it won't receive it [and since all MCDI events
445 * are sent to the same queue, we can't be racing with
446 * efx_mcdi_ev_cpl()]
447 *
448 * There's a race here with efx_mcdi_rpc(), because we might receive
449 * a REBOOT event *before* the request has been copied out. In polled
450 * mode (during startup) this is irrelevent, because efx_mcdi_complete()
451 * is ignored. In event mode, this condition is just an edge-case of
452 * receiving a REBOOT event after posting the MCDI request. Did the mc
453 * reboot before or after the copyout? The best we can do always is
454 * just return failure.
455 */
456 spin_lock(&mcdi->iface_lock);
457 if (efx_mcdi_complete(mcdi)) {
458 if (mcdi->mode == MCDI_MODE_EVENTS) {
459 mcdi->resprc = rc;
460 mcdi->resplen = 0;
461 }
462 } else
463 /* Nobody was waiting for an MCDI request, so trigger a reset */
464 efx_schedule_reset(efx, RESET_TYPE_MC_FAILURE);
465
466 spin_unlock(&mcdi->iface_lock);
467 }
468
469 static unsigned int efx_mcdi_event_link_speed[] = {
470 [MCDI_EVENT_LINKCHANGE_SPEED_100M] = 100,
471 [MCDI_EVENT_LINKCHANGE_SPEED_1G] = 1000,
472 [MCDI_EVENT_LINKCHANGE_SPEED_10G] = 10000,
473 };
474
475
476 static void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev)
477 {
478 u32 flags, fcntl, speed, lpa;
479
480 speed = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_SPEED);
481 EFX_BUG_ON_PARANOID(speed >= ARRAY_SIZE(efx_mcdi_event_link_speed));
482 speed = efx_mcdi_event_link_speed[speed];
483
484 flags = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LINK_FLAGS);
485 fcntl = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_FCNTL);
486 lpa = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LP_CAP);
487
488 /* efx->link_state is only modified by efx_mcdi_phy_get_link(),
489 * which is only run after flushing the event queues. Therefore, it
490 * is safe to modify the link state outside of the mac_lock here.
491 */
492 efx_mcdi_phy_decode_link(efx, &efx->link_state, speed, flags, fcntl);
493
494 efx_mcdi_phy_check_fcntl(efx, lpa);
495
496 efx_link_status_changed(efx);
497 }
498
499 static const char *sensor_names[] = {
500 [MC_CMD_SENSOR_CONTROLLER_TEMP] = "Controller temp. sensor",
501 [MC_CMD_SENSOR_PHY_COMMON_TEMP] = "PHY shared temp. sensor",
502 [MC_CMD_SENSOR_CONTROLLER_COOLING] = "Controller cooling",
503 [MC_CMD_SENSOR_PHY0_TEMP] = "PHY 0 temp. sensor",
504 [MC_CMD_SENSOR_PHY0_COOLING] = "PHY 0 cooling",
505 [MC_CMD_SENSOR_PHY1_TEMP] = "PHY 1 temp. sensor",
506 [MC_CMD_SENSOR_PHY1_COOLING] = "PHY 1 cooling",
507 [MC_CMD_SENSOR_IN_1V0] = "1.0V supply sensor",
508 [MC_CMD_SENSOR_IN_1V2] = "1.2V supply sensor",
509 [MC_CMD_SENSOR_IN_1V8] = "1.8V supply sensor",
510 [MC_CMD_SENSOR_IN_2V5] = "2.5V supply sensor",
511 [MC_CMD_SENSOR_IN_3V3] = "3.3V supply sensor",
512 [MC_CMD_SENSOR_IN_12V0] = "12V supply sensor"
513 };
514
515 static const char *sensor_status_names[] = {
516 [MC_CMD_SENSOR_STATE_OK] = "OK",
517 [MC_CMD_SENSOR_STATE_WARNING] = "Warning",
518 [MC_CMD_SENSOR_STATE_FATAL] = "Fatal",
519 [MC_CMD_SENSOR_STATE_BROKEN] = "Device failure",
520 };
521
522 static void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev)
523 {
524 unsigned int monitor, state, value;
525 const char *name, *state_txt;
526 monitor = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_MONITOR);
527 state = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_STATE);
528 value = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_VALUE);
529 /* Deal gracefully with the board having more drivers than we
530 * know about, but do not expect new sensor states. */
531 name = (monitor >= ARRAY_SIZE(sensor_names))
532 ? "No sensor name available" :
533 sensor_names[monitor];
534 EFX_BUG_ON_PARANOID(state >= ARRAY_SIZE(sensor_status_names));
535 state_txt = sensor_status_names[state];
536
537 EFX_ERR(efx, "Sensor %d (%s) reports condition '%s' for raw value %d\n",
538 monitor, name, state_txt, value);
539 }
540
541 /* Called from falcon_process_eventq for MCDI events */
542 void efx_mcdi_process_event(struct efx_channel *channel,
543 efx_qword_t *event)
544 {
545 struct efx_nic *efx = channel->efx;
546 int code = EFX_QWORD_FIELD(*event, MCDI_EVENT_CODE);
547 u32 data = EFX_QWORD_FIELD(*event, MCDI_EVENT_DATA);
548
549 switch (code) {
550 case MCDI_EVENT_CODE_BADSSERT:
551 EFX_ERR(efx, "MC watchdog or assertion failure at 0x%x\n", data);
552 efx_mcdi_ev_death(efx, EINTR);
553 break;
554
555 case MCDI_EVENT_CODE_PMNOTICE:
556 EFX_INFO(efx, "MCDI PM event.\n");
557 break;
558
559 case MCDI_EVENT_CODE_CMDDONE:
560 efx_mcdi_ev_cpl(efx,
561 MCDI_EVENT_FIELD(*event, CMDDONE_SEQ),
562 MCDI_EVENT_FIELD(*event, CMDDONE_DATALEN),
563 MCDI_EVENT_FIELD(*event, CMDDONE_ERRNO));
564 break;
565
566 case MCDI_EVENT_CODE_LINKCHANGE:
567 efx_mcdi_process_link_change(efx, event);
568 break;
569 case MCDI_EVENT_CODE_SENSOREVT:
570 efx_mcdi_sensor_event(efx, event);
571 break;
572 case MCDI_EVENT_CODE_SCHEDERR:
573 EFX_INFO(efx, "MC Scheduler error address=0x%x\n", data);
574 break;
575 case MCDI_EVENT_CODE_REBOOT:
576 EFX_INFO(efx, "MC Reboot\n");
577 efx_mcdi_ev_death(efx, EIO);
578 break;
579 case MCDI_EVENT_CODE_MAC_STATS_DMA:
580 /* MAC stats are gather lazily. We can ignore this. */
581 break;
582
583 default:
584 EFX_ERR(efx, "Unknown MCDI event 0x%x\n", code);
585 }
586 }
587
588 /**************************************************************************
589 *
590 * Specific request functions
591 *
592 **************************************************************************
593 */
594
595 int efx_mcdi_fwver(struct efx_nic *efx, u64 *version, u32 *build)
596 {
597 u8 outbuf[ALIGN(MC_CMD_GET_VERSION_V1_OUT_LEN, 4)];
598 size_t outlength;
599 const __le16 *ver_words;
600 int rc;
601
602 BUILD_BUG_ON(MC_CMD_GET_VERSION_IN_LEN != 0);
603
604 rc = efx_mcdi_rpc(efx, MC_CMD_GET_VERSION, NULL, 0,
605 outbuf, sizeof(outbuf), &outlength);
606 if (rc)
607 goto fail;
608
609 if (outlength == MC_CMD_GET_VERSION_V0_OUT_LEN) {
610 *version = 0;
611 *build = MCDI_DWORD(outbuf, GET_VERSION_OUT_FIRMWARE);
612 return 0;
613 }
614
615 if (outlength < MC_CMD_GET_VERSION_V1_OUT_LEN) {
616 rc = -EIO;
617 goto fail;
618 }
619
620 ver_words = (__le16 *)MCDI_PTR(outbuf, GET_VERSION_OUT_VERSION);
621 *version = (((u64)le16_to_cpu(ver_words[0]) << 48) |
622 ((u64)le16_to_cpu(ver_words[1]) << 32) |
623 ((u64)le16_to_cpu(ver_words[2]) << 16) |
624 le16_to_cpu(ver_words[3]));
625 *build = MCDI_DWORD(outbuf, GET_VERSION_OUT_FIRMWARE);
626
627 return 0;
628
629 fail:
630 EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
631 return rc;
632 }
633
634 int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating,
635 bool *was_attached)
636 {
637 u8 inbuf[MC_CMD_DRV_ATTACH_IN_LEN];
638 u8 outbuf[MC_CMD_DRV_ATTACH_OUT_LEN];
639 size_t outlen;
640 int rc;
641
642 MCDI_SET_DWORD(inbuf, DRV_ATTACH_IN_NEW_STATE,
643 driver_operating ? 1 : 0);
644 MCDI_SET_DWORD(inbuf, DRV_ATTACH_IN_UPDATE, 1);
645
646 rc = efx_mcdi_rpc(efx, MC_CMD_DRV_ATTACH, inbuf, sizeof(inbuf),
647 outbuf, sizeof(outbuf), &outlen);
648 if (rc)
649 goto fail;
650 if (outlen < MC_CMD_DRV_ATTACH_OUT_LEN) {
651 rc = -EIO;
652 goto fail;
653 }
654
655 if (was_attached != NULL)
656 *was_attached = MCDI_DWORD(outbuf, DRV_ATTACH_OUT_OLD_STATE);
657 return 0;
658
659 fail:
660 EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
661 return rc;
662 }
663
664 int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
665 u16 *fw_subtype_list)
666 {
667 uint8_t outbuf[MC_CMD_GET_BOARD_CFG_OUT_LEN];
668 size_t outlen;
669 int port_num = efx_port_num(efx);
670 int offset;
671 int rc;
672
673 BUILD_BUG_ON(MC_CMD_GET_BOARD_CFG_IN_LEN != 0);
674
675 rc = efx_mcdi_rpc(efx, MC_CMD_GET_BOARD_CFG, NULL, 0,
676 outbuf, sizeof(outbuf), &outlen);
677 if (rc)
678 goto fail;
679
680 if (outlen < MC_CMD_GET_BOARD_CFG_OUT_LEN) {
681 rc = -EIO;
682 goto fail;
683 }
684
685 offset = (port_num)
686 ? MC_CMD_GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT1_OFST
687 : MC_CMD_GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT0_OFST;
688 if (mac_address)
689 memcpy(mac_address, outbuf + offset, ETH_ALEN);
690 if (fw_subtype_list)
691 memcpy(fw_subtype_list,
692 outbuf + MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_OFST,
693 MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_LEN);
694
695 return 0;
696
697 fail:
698 EFX_ERR(efx, "%s: failed rc=%d len=%d\n", __func__, rc, (int)outlen);
699
700 return rc;
701 }
702
703 int efx_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart, u32 dest_evq)
704 {
705 u8 inbuf[MC_CMD_LOG_CTRL_IN_LEN];
706 u32 dest = 0;
707 int rc;
708
709 if (uart)
710 dest |= MC_CMD_LOG_CTRL_IN_LOG_DEST_UART;
711 if (evq)
712 dest |= MC_CMD_LOG_CTRL_IN_LOG_DEST_EVQ;
713
714 MCDI_SET_DWORD(inbuf, LOG_CTRL_IN_LOG_DEST, dest);
715 MCDI_SET_DWORD(inbuf, LOG_CTRL_IN_LOG_DEST_EVQ, dest_evq);
716
717 BUILD_BUG_ON(MC_CMD_LOG_CTRL_OUT_LEN != 0);
718
719 rc = efx_mcdi_rpc(efx, MC_CMD_LOG_CTRL, inbuf, sizeof(inbuf),
720 NULL, 0, NULL);
721 if (rc)
722 goto fail;
723
724 return 0;
725
726 fail:
727 EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
728 return rc;
729 }
730
731 int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out)
732 {
733 u8 outbuf[MC_CMD_NVRAM_TYPES_OUT_LEN];
734 size_t outlen;
735 int rc;
736
737 BUILD_BUG_ON(MC_CMD_NVRAM_TYPES_IN_LEN != 0);
738
739 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_TYPES, NULL, 0,
740 outbuf, sizeof(outbuf), &outlen);
741 if (rc)
742 goto fail;
743 if (outlen < MC_CMD_NVRAM_TYPES_OUT_LEN) {
744 rc = -EIO;
745 goto fail;
746 }
747
748 *nvram_types_out = MCDI_DWORD(outbuf, NVRAM_TYPES_OUT_TYPES);
749 return 0;
750
751 fail:
752 EFX_ERR(efx, "%s: failed rc=%d\n",
753 __func__, rc);
754 return rc;
755 }
756
757 int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type,
758 size_t *size_out, size_t *erase_size_out,
759 bool *protected_out)
760 {
761 u8 inbuf[MC_CMD_NVRAM_INFO_IN_LEN];
762 u8 outbuf[MC_CMD_NVRAM_INFO_OUT_LEN];
763 size_t outlen;
764 int rc;
765
766 MCDI_SET_DWORD(inbuf, NVRAM_INFO_IN_TYPE, type);
767
768 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_INFO, inbuf, sizeof(inbuf),
769 outbuf, sizeof(outbuf), &outlen);
770 if (rc)
771 goto fail;
772 if (outlen < MC_CMD_NVRAM_INFO_OUT_LEN) {
773 rc = -EIO;
774 goto fail;
775 }
776
777 *size_out = MCDI_DWORD(outbuf, NVRAM_INFO_OUT_SIZE);
778 *erase_size_out = MCDI_DWORD(outbuf, NVRAM_INFO_OUT_ERASESIZE);
779 *protected_out = !!(MCDI_DWORD(outbuf, NVRAM_INFO_OUT_FLAGS) &
780 (1 << MC_CMD_NVRAM_PROTECTED_LBN));
781 return 0;
782
783 fail:
784 EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
785 return rc;
786 }
787
788 int efx_mcdi_nvram_update_start(struct efx_nic *efx, unsigned int type)
789 {
790 u8 inbuf[MC_CMD_NVRAM_UPDATE_START_IN_LEN];
791 int rc;
792
793 MCDI_SET_DWORD(inbuf, NVRAM_UPDATE_START_IN_TYPE, type);
794
795 BUILD_BUG_ON(MC_CMD_NVRAM_UPDATE_START_OUT_LEN != 0);
796
797 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_UPDATE_START, inbuf, sizeof(inbuf),
798 NULL, 0, NULL);
799 if (rc)
800 goto fail;
801
802 return 0;
803
804 fail:
805 EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
806 return rc;
807 }
808
809 int efx_mcdi_nvram_read(struct efx_nic *efx, unsigned int type,
810 loff_t offset, u8 *buffer, size_t length)
811 {
812 u8 inbuf[MC_CMD_NVRAM_READ_IN_LEN];
813 u8 outbuf[MC_CMD_NVRAM_READ_OUT_LEN(EFX_MCDI_NVRAM_LEN_MAX)];
814 size_t outlen;
815 int rc;
816
817 MCDI_SET_DWORD(inbuf, NVRAM_READ_IN_TYPE, type);
818 MCDI_SET_DWORD(inbuf, NVRAM_READ_IN_OFFSET, offset);
819 MCDI_SET_DWORD(inbuf, NVRAM_READ_IN_LENGTH, length);
820
821 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_READ, inbuf, sizeof(inbuf),
822 outbuf, sizeof(outbuf), &outlen);
823 if (rc)
824 goto fail;
825
826 memcpy(buffer, MCDI_PTR(outbuf, NVRAM_READ_OUT_READ_BUFFER), length);
827 return 0;
828
829 fail:
830 EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
831 return rc;
832 }
833
834 int efx_mcdi_nvram_write(struct efx_nic *efx, unsigned int type,
835 loff_t offset, const u8 *buffer, size_t length)
836 {
837 u8 inbuf[MC_CMD_NVRAM_WRITE_IN_LEN(EFX_MCDI_NVRAM_LEN_MAX)];
838 int rc;
839
840 MCDI_SET_DWORD(inbuf, NVRAM_WRITE_IN_TYPE, type);
841 MCDI_SET_DWORD(inbuf, NVRAM_WRITE_IN_OFFSET, offset);
842 MCDI_SET_DWORD(inbuf, NVRAM_WRITE_IN_LENGTH, length);
843 memcpy(MCDI_PTR(inbuf, NVRAM_WRITE_IN_WRITE_BUFFER), buffer, length);
844
845 BUILD_BUG_ON(MC_CMD_NVRAM_WRITE_OUT_LEN != 0);
846
847 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_WRITE, inbuf,
848 ALIGN(MC_CMD_NVRAM_WRITE_IN_LEN(length), 4),
849 NULL, 0, NULL);
850 if (rc)
851 goto fail;
852
853 return 0;
854
855 fail:
856 EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
857 return rc;
858 }
859
860 int efx_mcdi_nvram_erase(struct efx_nic *efx, unsigned int type,
861 loff_t offset, size_t length)
862 {
863 u8 inbuf[MC_CMD_NVRAM_ERASE_IN_LEN];
864 int rc;
865
866 MCDI_SET_DWORD(inbuf, NVRAM_ERASE_IN_TYPE, type);
867 MCDI_SET_DWORD(inbuf, NVRAM_ERASE_IN_OFFSET, offset);
868 MCDI_SET_DWORD(inbuf, NVRAM_ERASE_IN_LENGTH, length);
869
870 BUILD_BUG_ON(MC_CMD_NVRAM_ERASE_OUT_LEN != 0);
871
872 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_ERASE, inbuf, sizeof(inbuf),
873 NULL, 0, NULL);
874 if (rc)
875 goto fail;
876
877 return 0;
878
879 fail:
880 EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
881 return rc;
882 }
883
884 int efx_mcdi_nvram_update_finish(struct efx_nic *efx, unsigned int type)
885 {
886 u8 inbuf[MC_CMD_NVRAM_UPDATE_FINISH_IN_LEN];
887 int rc;
888
889 MCDI_SET_DWORD(inbuf, NVRAM_UPDATE_FINISH_IN_TYPE, type);
890
891 BUILD_BUG_ON(MC_CMD_NVRAM_UPDATE_FINISH_OUT_LEN != 0);
892
893 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_UPDATE_FINISH, inbuf, sizeof(inbuf),
894 NULL, 0, NULL);
895 if (rc)
896 goto fail;
897
898 return 0;
899
900 fail:
901 EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
902 return rc;
903 }
904
905 static int efx_mcdi_nvram_test(struct efx_nic *efx, unsigned int type)
906 {
907 u8 inbuf[MC_CMD_NVRAM_TEST_IN_LEN];
908 u8 outbuf[MC_CMD_NVRAM_TEST_OUT_LEN];
909 int rc;
910
911 MCDI_SET_DWORD(inbuf, NVRAM_TEST_IN_TYPE, type);
912
913 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_TEST, inbuf, sizeof(inbuf),
914 outbuf, sizeof(outbuf), NULL);
915 if (rc)
916 return rc;
917
918 switch (MCDI_DWORD(outbuf, NVRAM_TEST_OUT_RESULT)) {
919 case MC_CMD_NVRAM_TEST_PASS:
920 case MC_CMD_NVRAM_TEST_NOTSUPP:
921 return 0;
922 default:
923 return -EIO;
924 }
925 }
926
927 int efx_mcdi_nvram_test_all(struct efx_nic *efx)
928 {
929 u32 nvram_types;
930 unsigned int type;
931 int rc;
932
933 rc = efx_mcdi_nvram_types(efx, &nvram_types);
934 if (rc)
935 goto fail1;
936
937 type = 0;
938 while (nvram_types != 0) {
939 if (nvram_types & 1) {
940 rc = efx_mcdi_nvram_test(efx, type);
941 if (rc)
942 goto fail2;
943 }
944 type++;
945 nvram_types >>= 1;
946 }
947
948 return 0;
949
950 fail2:
951 EFX_ERR(efx, "%s: failed type=%u\n", __func__, type);
952 fail1:
953 EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
954 return rc;
955 }
956
957 static int efx_mcdi_read_assertion(struct efx_nic *efx)
958 {
959 u8 inbuf[MC_CMD_GET_ASSERTS_IN_LEN];
960 u8 outbuf[MC_CMD_GET_ASSERTS_OUT_LEN];
961 unsigned int flags, index, ofst;
962 const char *reason;
963 size_t outlen;
964 int retry;
965 int rc;
966
967 /* Attempt to read any stored assertion state before we reboot
968 * the mcfw out of the assertion handler. Retry twice, once
969 * because a boot-time assertion might cause this command to fail
970 * with EINTR. And once again because GET_ASSERTS can race with
971 * MC_CMD_REBOOT running on the other port. */
972 retry = 2;
973 do {
974 MCDI_SET_DWORD(inbuf, GET_ASSERTS_IN_CLEAR, 1);
975 rc = efx_mcdi_rpc(efx, MC_CMD_GET_ASSERTS,
976 inbuf, MC_CMD_GET_ASSERTS_IN_LEN,
977 outbuf, sizeof(outbuf), &outlen);
978 } while ((rc == -EINTR || rc == -EIO) && retry-- > 0);
979
980 if (rc)
981 return rc;
982 if (outlen < MC_CMD_GET_ASSERTS_OUT_LEN)
983 return -EIO;
984
985 /* Print out any recorded assertion state */
986 flags = MCDI_DWORD(outbuf, GET_ASSERTS_OUT_GLOBAL_FLAGS);
987 if (flags == MC_CMD_GET_ASSERTS_FLAGS_NO_FAILS)
988 return 0;
989
990 reason = (flags == MC_CMD_GET_ASSERTS_FLAGS_SYS_FAIL)
991 ? "system-level assertion"
992 : (flags == MC_CMD_GET_ASSERTS_FLAGS_THR_FAIL)
993 ? "thread-level assertion"
994 : (flags == MC_CMD_GET_ASSERTS_FLAGS_WDOG_FIRED)
995 ? "watchdog reset"
996 : "unknown assertion";
997 EFX_ERR(efx, "MCPU %s at PC = 0x%.8x in thread 0x%.8x\n", reason,
998 MCDI_DWORD(outbuf, GET_ASSERTS_OUT_SAVED_PC_OFFS),
999 MCDI_DWORD(outbuf, GET_ASSERTS_OUT_THREAD_OFFS));
1000
1001 /* Print out the registers */
1002 ofst = MC_CMD_GET_ASSERTS_OUT_GP_REGS_OFFS_OFST;
1003 for (index = 1; index < 32; index++) {
1004 EFX_ERR(efx, "R%.2d (?): 0x%.8x\n", index,
1005 MCDI_DWORD2(outbuf, ofst));
1006 ofst += sizeof(efx_dword_t);
1007 }
1008
1009 return 0;
1010 }
1011
1012 static void efx_mcdi_exit_assertion(struct efx_nic *efx)
1013 {
1014 u8 inbuf[MC_CMD_REBOOT_IN_LEN];
1015
1016 /* Atomically reboot the mcfw out of the assertion handler */
1017 BUILD_BUG_ON(MC_CMD_REBOOT_OUT_LEN != 0);
1018 MCDI_SET_DWORD(inbuf, REBOOT_IN_FLAGS,
1019 MC_CMD_REBOOT_FLAGS_AFTER_ASSERTION);
1020 efx_mcdi_rpc(efx, MC_CMD_REBOOT, inbuf, MC_CMD_REBOOT_IN_LEN,
1021 NULL, 0, NULL);
1022 }
1023
1024 int efx_mcdi_handle_assertion(struct efx_nic *efx)
1025 {
1026 int rc;
1027
1028 rc = efx_mcdi_read_assertion(efx);
1029 if (rc)
1030 return rc;
1031
1032 efx_mcdi_exit_assertion(efx);
1033
1034 return 0;
1035 }
1036
1037 void efx_mcdi_set_id_led(struct efx_nic *efx, enum efx_led_mode mode)
1038 {
1039 u8 inbuf[MC_CMD_SET_ID_LED_IN_LEN];
1040 int rc;
1041
1042 BUILD_BUG_ON(EFX_LED_OFF != MC_CMD_LED_OFF);
1043 BUILD_BUG_ON(EFX_LED_ON != MC_CMD_LED_ON);
1044 BUILD_BUG_ON(EFX_LED_DEFAULT != MC_CMD_LED_DEFAULT);
1045
1046 BUILD_BUG_ON(MC_CMD_SET_ID_LED_OUT_LEN != 0);
1047
1048 MCDI_SET_DWORD(inbuf, SET_ID_LED_IN_STATE, mode);
1049
1050 rc = efx_mcdi_rpc(efx, MC_CMD_SET_ID_LED, inbuf, sizeof(inbuf),
1051 NULL, 0, NULL);
1052 if (rc)
1053 EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
1054 }
1055
1056 int efx_mcdi_reset_port(struct efx_nic *efx)
1057 {
1058 int rc = efx_mcdi_rpc(efx, MC_CMD_PORT_RESET, NULL, 0, NULL, 0, NULL);
1059 if (rc)
1060 EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
1061 return rc;
1062 }
1063
1064 int efx_mcdi_reset_mc(struct efx_nic *efx)
1065 {
1066 u8 inbuf[MC_CMD_REBOOT_IN_LEN];
1067 int rc;
1068
1069 BUILD_BUG_ON(MC_CMD_REBOOT_OUT_LEN != 0);
1070 MCDI_SET_DWORD(inbuf, REBOOT_IN_FLAGS, 0);
1071 rc = efx_mcdi_rpc(efx, MC_CMD_REBOOT, inbuf, sizeof(inbuf),
1072 NULL, 0, NULL);
1073 /* White is black, and up is down */
1074 if (rc == -EIO)
1075 return 0;
1076 if (rc == 0)
1077 rc = -EIO;
1078 EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
1079 return rc;
1080 }
1081
1082 int efx_mcdi_wol_filter_set(struct efx_nic *efx, u32 type,
1083 const u8 *mac, int *id_out)
1084 {
1085 u8 inbuf[MC_CMD_WOL_FILTER_SET_IN_LEN];
1086 u8 outbuf[MC_CMD_WOL_FILTER_SET_OUT_LEN];
1087 size_t outlen;
1088 int rc;
1089
1090 MCDI_SET_DWORD(inbuf, WOL_FILTER_SET_IN_WOL_TYPE, type);
1091 MCDI_SET_DWORD(inbuf, WOL_FILTER_SET_IN_FILTER_MODE,
1092 MC_CMD_FILTER_MODE_SIMPLE);
1093 memcpy(MCDI_PTR(inbuf, WOL_FILTER_SET_IN_MAGIC_MAC), mac, ETH_ALEN);
1094
1095 rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_SET, inbuf, sizeof(inbuf),
1096 outbuf, sizeof(outbuf), &outlen);
1097 if (rc)
1098 goto fail;
1099
1100 if (outlen < MC_CMD_WOL_FILTER_SET_OUT_LEN) {
1101 rc = -EIO;
1102 goto fail;
1103 }
1104
1105 *id_out = (int)MCDI_DWORD(outbuf, WOL_FILTER_SET_OUT_FILTER_ID);
1106
1107 return 0;
1108
1109 fail:
1110 *id_out = -1;
1111 EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
1112 return rc;
1113
1114 }
1115
1116
1117 int
1118 efx_mcdi_wol_filter_set_magic(struct efx_nic *efx, const u8 *mac, int *id_out)
1119 {
1120 return efx_mcdi_wol_filter_set(efx, MC_CMD_WOL_TYPE_MAGIC, mac, id_out);
1121 }
1122
1123
1124 int efx_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out)
1125 {
1126 u8 outbuf[MC_CMD_WOL_FILTER_GET_OUT_LEN];
1127 size_t outlen;
1128 int rc;
1129
1130 rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_GET, NULL, 0,
1131 outbuf, sizeof(outbuf), &outlen);
1132 if (rc)
1133 goto fail;
1134
1135 if (outlen < MC_CMD_WOL_FILTER_GET_OUT_LEN) {
1136 rc = -EIO;
1137 goto fail;
1138 }
1139
1140 *id_out = (int)MCDI_DWORD(outbuf, WOL_FILTER_GET_OUT_FILTER_ID);
1141
1142 return 0;
1143
1144 fail:
1145 *id_out = -1;
1146 EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
1147 return rc;
1148 }
1149
1150
1151 int efx_mcdi_wol_filter_remove(struct efx_nic *efx, int id)
1152 {
1153 u8 inbuf[MC_CMD_WOL_FILTER_REMOVE_IN_LEN];
1154 int rc;
1155
1156 MCDI_SET_DWORD(inbuf, WOL_FILTER_REMOVE_IN_FILTER_ID, (u32)id);
1157
1158 rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_REMOVE, inbuf, sizeof(inbuf),
1159 NULL, 0, NULL);
1160 if (rc)
1161 goto fail;
1162
1163 return 0;
1164
1165 fail:
1166 EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
1167 return rc;
1168 }
1169
1170
1171 int efx_mcdi_wol_filter_reset(struct efx_nic *efx)
1172 {
1173 int rc;
1174
1175 rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_RESET, NULL, 0, NULL, 0, NULL);
1176 if (rc)
1177 goto fail;
1178
1179 return 0;
1180
1181 fail:
1182 EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
1183 return rc;
1184 }
1185
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree