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timerfd: Allow timers to be cancelled when clock was set
[linux-2.6/linux-mips.git] / drivers / net / sfc / mcdi.c
blobd98479030ef2c3e3dbac1d9a0c0f4a3f1262e91f
1 /****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2008-2011 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 /* use wmb() within loop to inhibit write combining */
100 wmb();
101 }
102
103 /* ring the doorbell with a distinctive value */
104 _efx_writed(efx, (__force __le32) 0x45789abc, doorbell);
105 wmb();
106 }
107
108 static void efx_mcdi_copyout(struct efx_nic *efx, u8 *outbuf, size_t outlen)
109 {
110 struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
111 unsigned int pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx);
112 int i;
113
114 BUG_ON(atomic_read(&mcdi->state) == MCDI_STATE_QUIESCENT);
115 BUG_ON(outlen & 3 || outlen >= 0x100);
116
117 for (i = 0; i < outlen; i += 4)
118 *((__le32 *)(outbuf + i)) = _efx_readd(efx, pdu + 4 + i);
119 }
120
121 static int efx_mcdi_poll(struct efx_nic *efx)
122 {
123 struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
124 unsigned int time, finish;
125 unsigned int respseq, respcmd, error;
126 unsigned int pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx);
127 unsigned int rc, spins;
128 efx_dword_t reg;
129
130 /* Check for a reboot atomically with respect to efx_mcdi_copyout() */
131 rc = -efx_mcdi_poll_reboot(efx);
132 if (rc)
133 goto out;
134
135 /* Poll for completion. Poll quickly (once a us) for the 1st jiffy,
136 * because generally mcdi responses are fast. After that, back off
137 * and poll once a jiffy (approximately)
138 */
139 spins = TICK_USEC;
140 finish = get_seconds() + MCDI_RPC_TIMEOUT;
141
142 while (1) {
143 if (spins != 0) {
144 --spins;
145 udelay(1);
146 } else {
147 schedule_timeout_uninterruptible(1);
148 }
149
150 time = get_seconds();
151
152 rmb();
153 efx_readd(efx, &reg, pdu);
154
155 /* All 1's indicates that shared memory is in reset (and is
156 * not a valid header). Wait for it to come out reset before
157 * completing the command */
158 if (EFX_DWORD_FIELD(reg, EFX_DWORD_0) != 0xffffffff &&
159 EFX_DWORD_FIELD(reg, MCDI_HEADER_RESPONSE))
160 break;
161
162 if (time >= finish)
163 return -ETIMEDOUT;
164 }
165
166 mcdi->resplen = EFX_DWORD_FIELD(reg, MCDI_HEADER_DATALEN);
167 respseq = EFX_DWORD_FIELD(reg, MCDI_HEADER_SEQ);
168 respcmd = EFX_DWORD_FIELD(reg, MCDI_HEADER_CODE);
169 error = EFX_DWORD_FIELD(reg, MCDI_HEADER_ERROR);
170
171 if (error && mcdi->resplen == 0) {
172 netif_err(efx, hw, efx->net_dev, "MC rebooted\n");
173 rc = EIO;
174 } else if ((respseq ^ mcdi->seqno) & SEQ_MASK) {
175 netif_err(efx, hw, efx->net_dev,
176 "MC response mismatch tx seq 0x%x rx seq 0x%x\n",
177 respseq, mcdi->seqno);
178 rc = EIO;
179 } else if (error) {
180 efx_readd(efx, &reg, pdu + 4);
181 switch (EFX_DWORD_FIELD(reg, EFX_DWORD_0)) {
182 #define TRANSLATE_ERROR(name) \
183 case MC_CMD_ERR_ ## name: \
184 rc = name; \
185 break
186 TRANSLATE_ERROR(ENOENT);
187 TRANSLATE_ERROR(EINTR);
188 TRANSLATE_ERROR(EACCES);
189 TRANSLATE_ERROR(EBUSY);
190 TRANSLATE_ERROR(EINVAL);
191 TRANSLATE_ERROR(EDEADLK);
192 TRANSLATE_ERROR(ENOSYS);
193 TRANSLATE_ERROR(ETIME);
194 #undef TRANSLATE_ERROR
195 default:
196 rc = EIO;
197 break;
198 }
199 } else
200 rc = 0;
201
202 out:
203 mcdi->resprc = rc;
204 if (rc)
205 mcdi->resplen = 0;
206
207 /* Return rc=0 like wait_event_timeout() */
208 return 0;
209 }
210
211 /* Test and clear MC-rebooted flag for this port/function */
212 int efx_mcdi_poll_reboot(struct efx_nic *efx)
213 {
214 unsigned int addr = FR_CZ_MC_TREG_SMEM + MCDI_REBOOT_FLAG(efx);
215 efx_dword_t reg;
216 uint32_t value;
217
218 if (efx_nic_rev(efx) < EFX_REV_SIENA_A0)
219 return false;
220
221 efx_readd(efx, &reg, addr);
222 value = EFX_DWORD_FIELD(reg, EFX_DWORD_0);
223
224 if (value == 0)
225 return 0;
226
227 EFX_ZERO_DWORD(reg);
228 efx_writed(efx, &reg, addr);
229
230 if (value == MC_STATUS_DWORD_ASSERT)
231 return -EINTR;
232 else
233 return -EIO;
234 }
235
236 static void efx_mcdi_acquire(struct efx_mcdi_iface *mcdi)
237 {
238 /* Wait until the interface becomes QUIESCENT and we win the race
239 * to mark it RUNNING. */
240 wait_event(mcdi->wq,
241 atomic_cmpxchg(&mcdi->state,
242 MCDI_STATE_QUIESCENT,
243 MCDI_STATE_RUNNING)
244 == MCDI_STATE_QUIESCENT);
245 }
246
247 static int efx_mcdi_await_completion(struct efx_nic *efx)
248 {
249 struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
250
251 if (wait_event_timeout(
252 mcdi->wq,
253 atomic_read(&mcdi->state) == MCDI_STATE_COMPLETED,
254 msecs_to_jiffies(MCDI_RPC_TIMEOUT * 1000)) == 0)
255 return -ETIMEDOUT;
256
257 /* Check if efx_mcdi_set_mode() switched us back to polled completions.
258 * In which case, poll for completions directly. If efx_mcdi_ev_cpl()
259 * completed the request first, then we'll just end up completing the
260 * request again, which is safe.
261 *
262 * We need an smp_rmb() to synchronise with efx_mcdi_mode_poll(), which
263 * wait_event_timeout() implicitly provides.
264 */
265 if (mcdi->mode == MCDI_MODE_POLL)
266 return efx_mcdi_poll(efx);
267
268 return 0;
269 }
270
271 static bool efx_mcdi_complete(struct efx_mcdi_iface *mcdi)
272 {
273 /* If the interface is RUNNING, then move to COMPLETED and wake any
274 * waiters. If the interface isn't in RUNNING then we've received a
275 * duplicate completion after we've already transitioned back to
276 * QUIESCENT. [A subsequent invocation would increment seqno, so would
277 * have failed the seqno check].
278 */
279 if (atomic_cmpxchg(&mcdi->state,
280 MCDI_STATE_RUNNING,
281 MCDI_STATE_COMPLETED) == MCDI_STATE_RUNNING) {
282 wake_up(&mcdi->wq);
283 return true;
284 }
285
286 return false;
287 }
288
289 static void efx_mcdi_release(struct efx_mcdi_iface *mcdi)
290 {
291 atomic_set(&mcdi->state, MCDI_STATE_QUIESCENT);
292 wake_up(&mcdi->wq);
293 }
294
295 static void efx_mcdi_ev_cpl(struct efx_nic *efx, unsigned int seqno,
296 unsigned int datalen, unsigned int errno)
297 {
298 struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
299 bool wake = false;
300
301 spin_lock(&mcdi->iface_lock);
302
303 if ((seqno ^ mcdi->seqno) & SEQ_MASK) {
304 if (mcdi->credits)
305 /* The request has been cancelled */
306 --mcdi->credits;
307 else
308 netif_err(efx, hw, efx->net_dev,
309 "MC response mismatch tx seq 0x%x rx "
310 "seq 0x%x\n", seqno, mcdi->seqno);
311 } else {
312 mcdi->resprc = errno;
313 mcdi->resplen = datalen;
314
315 wake = true;
316 }
317
318 spin_unlock(&mcdi->iface_lock);
319
320 if (wake)
321 efx_mcdi_complete(mcdi);
322 }
323
324 /* Issue the given command by writing the data into the shared memory PDU,
325 * ring the doorbell and wait for completion. Copyout the result. */
326 int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd,
327 const u8 *inbuf, size_t inlen, u8 *outbuf, size_t outlen,
328 size_t *outlen_actual)
329 {
330 struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
331 int rc;
332 BUG_ON(efx_nic_rev(efx) < EFX_REV_SIENA_A0);
333
334 efx_mcdi_acquire(mcdi);
335
336 /* Serialise with efx_mcdi_ev_cpl() and efx_mcdi_ev_death() */
337 spin_lock_bh(&mcdi->iface_lock);
338 ++mcdi->seqno;
339 spin_unlock_bh(&mcdi->iface_lock);
340
341 efx_mcdi_copyin(efx, cmd, inbuf, inlen);
342
343 if (mcdi->mode == MCDI_MODE_POLL)
344 rc = efx_mcdi_poll(efx);
345 else
346 rc = efx_mcdi_await_completion(efx);
347
348 if (rc != 0) {
349 /* Close the race with efx_mcdi_ev_cpl() executing just too late
350 * and completing a request we've just cancelled, by ensuring
351 * that the seqno check therein fails.
352 */
353 spin_lock_bh(&mcdi->iface_lock);
354 ++mcdi->seqno;
355 ++mcdi->credits;
356 spin_unlock_bh(&mcdi->iface_lock);
357
358 netif_err(efx, hw, efx->net_dev,
359 "MC command 0x%x inlen %d mode %d timed out\n",
360 cmd, (int)inlen, mcdi->mode);
361 } else {
362 size_t resplen;
363
364 /* At the very least we need a memory barrier here to ensure
365 * we pick up changes from efx_mcdi_ev_cpl(). Protect against
366 * a spurious efx_mcdi_ev_cpl() running concurrently by
367 * acquiring the iface_lock. */
368 spin_lock_bh(&mcdi->iface_lock);
369 rc = -mcdi->resprc;
370 resplen = mcdi->resplen;
371 spin_unlock_bh(&mcdi->iface_lock);
372
373 if (rc == 0) {
374 efx_mcdi_copyout(efx, outbuf,
375 min(outlen, mcdi->resplen + 3) & ~0x3);
376 if (outlen_actual != NULL)
377 *outlen_actual = resplen;
378 } else if (cmd == MC_CMD_REBOOT && rc == -EIO)
379 ; /* Don't reset if MC_CMD_REBOOT returns EIO */
380 else if (rc == -EIO || rc == -EINTR) {
381 netif_err(efx, hw, efx->net_dev, "MC fatal error %d\n",
382 -rc);
383 efx_schedule_reset(efx, RESET_TYPE_MC_FAILURE);
384 } else
385 netif_dbg(efx, hw, efx->net_dev,
386 "MC command 0x%x inlen %d failed rc=%d\n",
387 cmd, (int)inlen, -rc);
388 }
389
390 efx_mcdi_release(mcdi);
391 return rc;
392 }
393
394 void efx_mcdi_mode_poll(struct efx_nic *efx)
395 {
396 struct efx_mcdi_iface *mcdi;
397
398 if (efx_nic_rev(efx) < EFX_REV_SIENA_A0)
399 return;
400
401 mcdi = efx_mcdi(efx);
402 if (mcdi->mode == MCDI_MODE_POLL)
403 return;
404
405 /* We can switch from event completion to polled completion, because
406 * mcdi requests are always completed in shared memory. We do this by
407 * switching the mode to POLL'd then completing the request.
408 * efx_mcdi_await_completion() will then call efx_mcdi_poll().
409 *
410 * We need an smp_wmb() to synchronise with efx_mcdi_await_completion(),
411 * which efx_mcdi_complete() provides for us.
412 */
413 mcdi->mode = MCDI_MODE_POLL;
414
415 efx_mcdi_complete(mcdi);
416 }
417
418 void efx_mcdi_mode_event(struct efx_nic *efx)
419 {
420 struct efx_mcdi_iface *mcdi;
421
422 if (efx_nic_rev(efx) < EFX_REV_SIENA_A0)
423 return;
424
425 mcdi = efx_mcdi(efx);
426
427 if (mcdi->mode == MCDI_MODE_EVENTS)
428 return;
429
430 /* We can't switch from polled to event completion in the middle of a
431 * request, because the completion method is specified in the request.
432 * So acquire the interface to serialise the requestors. We don't need
433 * to acquire the iface_lock to change the mode here, but we do need a
434 * write memory barrier ensure that efx_mcdi_rpc() sees it, which
435 * efx_mcdi_acquire() provides.
436 */
437 efx_mcdi_acquire(mcdi);
438 mcdi->mode = MCDI_MODE_EVENTS;
439 efx_mcdi_release(mcdi);
440 }
441
442 static void efx_mcdi_ev_death(struct efx_nic *efx, int rc)
443 {
444 struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
445
446 /* If there is an outstanding MCDI request, it has been terminated
447 * either by a BADASSERT or REBOOT event. If the mcdi interface is
448 * in polled mode, then do nothing because the MC reboot handler will
449 * set the header correctly. However, if the mcdi interface is waiting
450 * for a CMDDONE event it won't receive it [and since all MCDI events
451 * are sent to the same queue, we can't be racing with
452 * efx_mcdi_ev_cpl()]
453 *
454 * There's a race here with efx_mcdi_rpc(), because we might receive
455 * a REBOOT event *before* the request has been copied out. In polled
456 * mode (during startup) this is irrelevant, because efx_mcdi_complete()
457 * is ignored. In event mode, this condition is just an edge-case of
458 * receiving a REBOOT event after posting the MCDI request. Did the mc
459 * reboot before or after the copyout? The best we can do always is
460 * just return failure.
461 */
462 spin_lock(&mcdi->iface_lock);
463 if (efx_mcdi_complete(mcdi)) {
464 if (mcdi->mode == MCDI_MODE_EVENTS) {
465 mcdi->resprc = rc;
466 mcdi->resplen = 0;
467 ++mcdi->credits;
468 }
469 } else
470 /* Nobody was waiting for an MCDI request, so trigger a reset */
471 efx_schedule_reset(efx, RESET_TYPE_MC_FAILURE);
472
473 spin_unlock(&mcdi->iface_lock);
474 }
475
476 static unsigned int efx_mcdi_event_link_speed[] = {
477 [MCDI_EVENT_LINKCHANGE_SPEED_100M] = 100,
478 [MCDI_EVENT_LINKCHANGE_SPEED_1G] = 1000,
479 [MCDI_EVENT_LINKCHANGE_SPEED_10G] = 10000,
480 };
481
482
483 static void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev)
484 {
485 u32 flags, fcntl, speed, lpa;
486
487 speed = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_SPEED);
488 EFX_BUG_ON_PARANOID(speed >= ARRAY_SIZE(efx_mcdi_event_link_speed));
489 speed = efx_mcdi_event_link_speed[speed];
490
491 flags = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LINK_FLAGS);
492 fcntl = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_FCNTL);
493 lpa = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LP_CAP);
494
495 /* efx->link_state is only modified by efx_mcdi_phy_get_link(),
496 * which is only run after flushing the event queues. Therefore, it
497 * is safe to modify the link state outside of the mac_lock here.
498 */
499 efx_mcdi_phy_decode_link(efx, &efx->link_state, speed, flags, fcntl);
500
501 efx_mcdi_phy_check_fcntl(efx, lpa);
502
503 efx_link_status_changed(efx);
504 }
505
506 static const char *sensor_names[] = {
507 [MC_CMD_SENSOR_CONTROLLER_TEMP] = "Controller temp. sensor",
508 [MC_CMD_SENSOR_PHY_COMMON_TEMP] = "PHY shared temp. sensor",
509 [MC_CMD_SENSOR_CONTROLLER_COOLING] = "Controller cooling",
510 [MC_CMD_SENSOR_PHY0_TEMP] = "PHY 0 temp. sensor",
511 [MC_CMD_SENSOR_PHY0_COOLING] = "PHY 0 cooling",
512 [MC_CMD_SENSOR_PHY1_TEMP] = "PHY 1 temp. sensor",
513 [MC_CMD_SENSOR_PHY1_COOLING] = "PHY 1 cooling",
514 [MC_CMD_SENSOR_IN_1V0] = "1.0V supply sensor",
515 [MC_CMD_SENSOR_IN_1V2] = "1.2V supply sensor",
516 [MC_CMD_SENSOR_IN_1V8] = "1.8V supply sensor",
517 [MC_CMD_SENSOR_IN_2V5] = "2.5V supply sensor",
518 [MC_CMD_SENSOR_IN_3V3] = "3.3V supply sensor",
519 [MC_CMD_SENSOR_IN_12V0] = "12V supply sensor"
520 };
521
522 static const char *sensor_status_names[] = {
523 [MC_CMD_SENSOR_STATE_OK] = "OK",
524 [MC_CMD_SENSOR_STATE_WARNING] = "Warning",
525 [MC_CMD_SENSOR_STATE_FATAL] = "Fatal",
526 [MC_CMD_SENSOR_STATE_BROKEN] = "Device failure",
527 };
528
529 static void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev)
530 {
531 unsigned int monitor, state, value;
532 const char *name, *state_txt;
533 monitor = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_MONITOR);
534 state = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_STATE);
535 value = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_VALUE);
536 /* Deal gracefully with the board having more drivers than we
537 * know about, but do not expect new sensor states. */
538 name = (monitor >= ARRAY_SIZE(sensor_names))
539 ? "No sensor name available" :
540 sensor_names[monitor];
541 EFX_BUG_ON_PARANOID(state >= ARRAY_SIZE(sensor_status_names));
542 state_txt = sensor_status_names[state];
543
544 netif_err(efx, hw, efx->net_dev,
545 "Sensor %d (%s) reports condition '%s' for raw value %d\n",
546 monitor, name, state_txt, value);
547 }
548
549 /* Called from falcon_process_eventq for MCDI events */
550 void efx_mcdi_process_event(struct efx_channel *channel,
551 efx_qword_t *event)
552 {
553 struct efx_nic *efx = channel->efx;
554 int code = EFX_QWORD_FIELD(*event, MCDI_EVENT_CODE);
555 u32 data = EFX_QWORD_FIELD(*event, MCDI_EVENT_DATA);
556
557 switch (code) {
558 case MCDI_EVENT_CODE_BADSSERT:
559 netif_err(efx, hw, efx->net_dev,
560 "MC watchdog or assertion failure at 0x%x\n", data);
561 efx_mcdi_ev_death(efx, EINTR);
562 break;
563
564 case MCDI_EVENT_CODE_PMNOTICE:
565 netif_info(efx, wol, efx->net_dev, "MCDI PM event.\n");
566 break;
567
568 case MCDI_EVENT_CODE_CMDDONE:
569 efx_mcdi_ev_cpl(efx,
570 MCDI_EVENT_FIELD(*event, CMDDONE_SEQ),
571 MCDI_EVENT_FIELD(*event, CMDDONE_DATALEN),
572 MCDI_EVENT_FIELD(*event, CMDDONE_ERRNO));
573 break;
574
575 case MCDI_EVENT_CODE_LINKCHANGE:
576 efx_mcdi_process_link_change(efx, event);
577 break;
578 case MCDI_EVENT_CODE_SENSOREVT:
579 efx_mcdi_sensor_event(efx, event);
580 break;
581 case MCDI_EVENT_CODE_SCHEDERR:
582 netif_info(efx, hw, efx->net_dev,
583 "MC Scheduler error address=0x%x\n", data);
584 break;
585 case MCDI_EVENT_CODE_REBOOT:
586 netif_info(efx, hw, efx->net_dev, "MC Reboot\n");
587 efx_mcdi_ev_death(efx, EIO);
588 break;
589 case MCDI_EVENT_CODE_MAC_STATS_DMA:
590 /* MAC stats are gather lazily. We can ignore this. */
591 break;
592
593 default:
594 netif_err(efx, hw, efx->net_dev, "Unknown MCDI event 0x%x\n",
595 code);
596 }
597 }
598
599 /**************************************************************************
600 *
601 * Specific request functions
602 *
603 **************************************************************************
604 */
605
606 void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len)
607 {
608 u8 outbuf[ALIGN(MC_CMD_GET_VERSION_V1_OUT_LEN, 4)];
609 size_t outlength;
610 const __le16 *ver_words;
611 int rc;
612
613 BUILD_BUG_ON(MC_CMD_GET_VERSION_IN_LEN != 0);
614
615 rc = efx_mcdi_rpc(efx, MC_CMD_GET_VERSION, NULL, 0,
616 outbuf, sizeof(outbuf), &outlength);
617 if (rc)
618 goto fail;
619
620 if (outlength < MC_CMD_GET_VERSION_V1_OUT_LEN) {
621 rc = -EIO;
622 goto fail;
623 }
624
625 ver_words = (__le16 *)MCDI_PTR(outbuf, GET_VERSION_OUT_VERSION);
626 snprintf(buf, len, "%u.%u.%u.%u",
627 le16_to_cpu(ver_words[0]), le16_to_cpu(ver_words[1]),
628 le16_to_cpu(ver_words[2]), le16_to_cpu(ver_words[3]));
629 return;
630
631 fail:
632 netif_err(efx, probe, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
633 buf[0] = 0;
634 }
635
636 int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating,
637 bool *was_attached)
638 {
639 u8 inbuf[MC_CMD_DRV_ATTACH_IN_LEN];
640 u8 outbuf[MC_CMD_DRV_ATTACH_OUT_LEN];
641 size_t outlen;
642 int rc;
643
644 MCDI_SET_DWORD(inbuf, DRV_ATTACH_IN_NEW_STATE,
645 driver_operating ? 1 : 0);
646 MCDI_SET_DWORD(inbuf, DRV_ATTACH_IN_UPDATE, 1);
647
648 rc = efx_mcdi_rpc(efx, MC_CMD_DRV_ATTACH, inbuf, sizeof(inbuf),
649 outbuf, sizeof(outbuf), &outlen);
650 if (rc)
651 goto fail;
652 if (outlen < MC_CMD_DRV_ATTACH_OUT_LEN) {
653 rc = -EIO;
654 goto fail;
655 }
656
657 if (was_attached != NULL)
658 *was_attached = MCDI_DWORD(outbuf, DRV_ATTACH_OUT_OLD_STATE);
659 return 0;
660
661 fail:
662 netif_err(efx, probe, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
663 return rc;
664 }
665
666 int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
667 u16 *fw_subtype_list)
668 {
669 uint8_t outbuf[MC_CMD_GET_BOARD_CFG_OUT_LEN];
670 size_t outlen;
671 int port_num = efx_port_num(efx);
672 int offset;
673 int rc;
674
675 BUILD_BUG_ON(MC_CMD_GET_BOARD_CFG_IN_LEN != 0);
676
677 rc = efx_mcdi_rpc(efx, MC_CMD_GET_BOARD_CFG, NULL, 0,
678 outbuf, sizeof(outbuf), &outlen);
679 if (rc)
680 goto fail;
681
682 if (outlen < MC_CMD_GET_BOARD_CFG_OUT_LEN) {
683 rc = -EIO;
684 goto fail;
685 }
686
687 offset = (port_num)
688 ? MC_CMD_GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT1_OFST
689 : MC_CMD_GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT0_OFST;
690 if (mac_address)
691 memcpy(mac_address, outbuf + offset, ETH_ALEN);
692 if (fw_subtype_list)
693 memcpy(fw_subtype_list,
694 outbuf + MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_OFST,
695 MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_LEN);
696
697 return 0;
698
699 fail:
700 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d len=%d\n",
701 __func__, rc, (int)outlen);
702
703 return rc;
704 }
705
706 int efx_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart, u32 dest_evq)
707 {
708 u8 inbuf[MC_CMD_LOG_CTRL_IN_LEN];
709 u32 dest = 0;
710 int rc;
711
712 if (uart)
713 dest |= MC_CMD_LOG_CTRL_IN_LOG_DEST_UART;
714 if (evq)
715 dest |= MC_CMD_LOG_CTRL_IN_LOG_DEST_EVQ;
716
717 MCDI_SET_DWORD(inbuf, LOG_CTRL_IN_LOG_DEST, dest);
718 MCDI_SET_DWORD(inbuf, LOG_CTRL_IN_LOG_DEST_EVQ, dest_evq);
719
720 BUILD_BUG_ON(MC_CMD_LOG_CTRL_OUT_LEN != 0);
721
722 rc = efx_mcdi_rpc(efx, MC_CMD_LOG_CTRL, inbuf, sizeof(inbuf),
723 NULL, 0, NULL);
724 if (rc)
725 goto fail;
726
727 return 0;
728
729 fail:
730 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
731 return rc;
732 }
733
734 int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out)
735 {
736 u8 outbuf[MC_CMD_NVRAM_TYPES_OUT_LEN];
737 size_t outlen;
738 int rc;
739
740 BUILD_BUG_ON(MC_CMD_NVRAM_TYPES_IN_LEN != 0);
741
742 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_TYPES, NULL, 0,
743 outbuf, sizeof(outbuf), &outlen);
744 if (rc)
745 goto fail;
746 if (outlen < MC_CMD_NVRAM_TYPES_OUT_LEN) {
747 rc = -EIO;
748 goto fail;
749 }
750
751 *nvram_types_out = MCDI_DWORD(outbuf, NVRAM_TYPES_OUT_TYPES);
752 return 0;
753
754 fail:
755 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
756 __func__, rc);
757 return rc;
758 }
759
760 int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type,
761 size_t *size_out, size_t *erase_size_out,
762 bool *protected_out)
763 {
764 u8 inbuf[MC_CMD_NVRAM_INFO_IN_LEN];
765 u8 outbuf[MC_CMD_NVRAM_INFO_OUT_LEN];
766 size_t outlen;
767 int rc;
768
769 MCDI_SET_DWORD(inbuf, NVRAM_INFO_IN_TYPE, type);
770
771 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_INFO, inbuf, sizeof(inbuf),
772 outbuf, sizeof(outbuf), &outlen);
773 if (rc)
774 goto fail;
775 if (outlen < MC_CMD_NVRAM_INFO_OUT_LEN) {
776 rc = -EIO;
777 goto fail;
778 }
779
780 *size_out = MCDI_DWORD(outbuf, NVRAM_INFO_OUT_SIZE);
781 *erase_size_out = MCDI_DWORD(outbuf, NVRAM_INFO_OUT_ERASESIZE);
782 *protected_out = !!(MCDI_DWORD(outbuf, NVRAM_INFO_OUT_FLAGS) &
783 (1 << MC_CMD_NVRAM_PROTECTED_LBN));
784 return 0;
785
786 fail:
787 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
788 return rc;
789 }
790
791 int efx_mcdi_nvram_update_start(struct efx_nic *efx, unsigned int type)
792 {
793 u8 inbuf[MC_CMD_NVRAM_UPDATE_START_IN_LEN];
794 int rc;
795
796 MCDI_SET_DWORD(inbuf, NVRAM_UPDATE_START_IN_TYPE, type);
797
798 BUILD_BUG_ON(MC_CMD_NVRAM_UPDATE_START_OUT_LEN != 0);
799
800 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_UPDATE_START, inbuf, sizeof(inbuf),
801 NULL, 0, NULL);
802 if (rc)
803 goto fail;
804
805 return 0;
806
807 fail:
808 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
809 return rc;
810 }
811
812 int efx_mcdi_nvram_read(struct efx_nic *efx, unsigned int type,
813 loff_t offset, u8 *buffer, size_t length)
814 {
815 u8 inbuf[MC_CMD_NVRAM_READ_IN_LEN];
816 u8 outbuf[MC_CMD_NVRAM_READ_OUT_LEN(EFX_MCDI_NVRAM_LEN_MAX)];
817 size_t outlen;
818 int rc;
819
820 MCDI_SET_DWORD(inbuf, NVRAM_READ_IN_TYPE, type);
821 MCDI_SET_DWORD(inbuf, NVRAM_READ_IN_OFFSET, offset);
822 MCDI_SET_DWORD(inbuf, NVRAM_READ_IN_LENGTH, length);
823
824 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_READ, inbuf, sizeof(inbuf),
825 outbuf, sizeof(outbuf), &outlen);
826 if (rc)
827 goto fail;
828
829 memcpy(buffer, MCDI_PTR(outbuf, NVRAM_READ_OUT_READ_BUFFER), length);
830 return 0;
831
832 fail:
833 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
834 return rc;
835 }
836
837 int efx_mcdi_nvram_write(struct efx_nic *efx, unsigned int type,
838 loff_t offset, const u8 *buffer, size_t length)
839 {
840 u8 inbuf[MC_CMD_NVRAM_WRITE_IN_LEN(EFX_MCDI_NVRAM_LEN_MAX)];
841 int rc;
842
843 MCDI_SET_DWORD(inbuf, NVRAM_WRITE_IN_TYPE, type);
844 MCDI_SET_DWORD(inbuf, NVRAM_WRITE_IN_OFFSET, offset);
845 MCDI_SET_DWORD(inbuf, NVRAM_WRITE_IN_LENGTH, length);
846 memcpy(MCDI_PTR(inbuf, NVRAM_WRITE_IN_WRITE_BUFFER), buffer, length);
847
848 BUILD_BUG_ON(MC_CMD_NVRAM_WRITE_OUT_LEN != 0);
849
850 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_WRITE, inbuf,
851 ALIGN(MC_CMD_NVRAM_WRITE_IN_LEN(length), 4),
852 NULL, 0, NULL);
853 if (rc)
854 goto fail;
855
856 return 0;
857
858 fail:
859 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
860 return rc;
861 }
862
863 int efx_mcdi_nvram_erase(struct efx_nic *efx, unsigned int type,
864 loff_t offset, size_t length)
865 {
866 u8 inbuf[MC_CMD_NVRAM_ERASE_IN_LEN];
867 int rc;
868
869 MCDI_SET_DWORD(inbuf, NVRAM_ERASE_IN_TYPE, type);
870 MCDI_SET_DWORD(inbuf, NVRAM_ERASE_IN_OFFSET, offset);
871 MCDI_SET_DWORD(inbuf, NVRAM_ERASE_IN_LENGTH, length);
872
873 BUILD_BUG_ON(MC_CMD_NVRAM_ERASE_OUT_LEN != 0);
874
875 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_ERASE, inbuf, sizeof(inbuf),
876 NULL, 0, NULL);
877 if (rc)
878 goto fail;
879
880 return 0;
881
882 fail:
883 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
884 return rc;
885 }
886
887 int efx_mcdi_nvram_update_finish(struct efx_nic *efx, unsigned int type)
888 {
889 u8 inbuf[MC_CMD_NVRAM_UPDATE_FINISH_IN_LEN];
890 int rc;
891
892 MCDI_SET_DWORD(inbuf, NVRAM_UPDATE_FINISH_IN_TYPE, type);
893
894 BUILD_BUG_ON(MC_CMD_NVRAM_UPDATE_FINISH_OUT_LEN != 0);
895
896 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_UPDATE_FINISH, inbuf, sizeof(inbuf),
897 NULL, 0, NULL);
898 if (rc)
899 goto fail;
900
901 return 0;
902
903 fail:
904 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
905 return rc;
906 }
907
908 static int efx_mcdi_nvram_test(struct efx_nic *efx, unsigned int type)
909 {
910 u8 inbuf[MC_CMD_NVRAM_TEST_IN_LEN];
911 u8 outbuf[MC_CMD_NVRAM_TEST_OUT_LEN];
912 int rc;
913
914 MCDI_SET_DWORD(inbuf, NVRAM_TEST_IN_TYPE, type);
915
916 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_TEST, inbuf, sizeof(inbuf),
917 outbuf, sizeof(outbuf), NULL);
918 if (rc)
919 return rc;
920
921 switch (MCDI_DWORD(outbuf, NVRAM_TEST_OUT_RESULT)) {
922 case MC_CMD_NVRAM_TEST_PASS:
923 case MC_CMD_NVRAM_TEST_NOTSUPP:
924 return 0;
925 default:
926 return -EIO;
927 }
928 }
929
930 int efx_mcdi_nvram_test_all(struct efx_nic *efx)
931 {
932 u32 nvram_types;
933 unsigned int type;
934 int rc;
935
936 rc = efx_mcdi_nvram_types(efx, &nvram_types);
937 if (rc)
938 goto fail1;
939
940 type = 0;
941 while (nvram_types != 0) {
942 if (nvram_types & 1) {
943 rc = efx_mcdi_nvram_test(efx, type);
944 if (rc)
945 goto fail2;
946 }
947 type++;
948 nvram_types >>= 1;
949 }
950
951 return 0;
952
953 fail2:
954 netif_err(efx, hw, efx->net_dev, "%s: failed type=%u\n",
955 __func__, type);
956 fail1:
957 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
958 return rc;
959 }
960
961 static int efx_mcdi_read_assertion(struct efx_nic *efx)
962 {
963 u8 inbuf[MC_CMD_GET_ASSERTS_IN_LEN];
964 u8 outbuf[MC_CMD_GET_ASSERTS_OUT_LEN];
965 unsigned int flags, index, ofst;
966 const char *reason;
967 size_t outlen;
968 int retry;
969 int rc;
970
971 /* Attempt to read any stored assertion state before we reboot
972 * the mcfw out of the assertion handler. Retry twice, once
973 * because a boot-time assertion might cause this command to fail
974 * with EINTR. And once again because GET_ASSERTS can race with
975 * MC_CMD_REBOOT running on the other port. */
976 retry = 2;
977 do {
978 MCDI_SET_DWORD(inbuf, GET_ASSERTS_IN_CLEAR, 1);
979 rc = efx_mcdi_rpc(efx, MC_CMD_GET_ASSERTS,
980 inbuf, MC_CMD_GET_ASSERTS_IN_LEN,
981 outbuf, sizeof(outbuf), &outlen);
982 } while ((rc == -EINTR || rc == -EIO) && retry-- > 0);
983
984 if (rc)
985 return rc;
986 if (outlen < MC_CMD_GET_ASSERTS_OUT_LEN)
987 return -EIO;
988
989 /* Print out any recorded assertion state */
990 flags = MCDI_DWORD(outbuf, GET_ASSERTS_OUT_GLOBAL_FLAGS);
991 if (flags == MC_CMD_GET_ASSERTS_FLAGS_NO_FAILS)
992 return 0;
993
994 reason = (flags == MC_CMD_GET_ASSERTS_FLAGS_SYS_FAIL)
995 ? "system-level assertion"
996 : (flags == MC_CMD_GET_ASSERTS_FLAGS_THR_FAIL)
997 ? "thread-level assertion"
998 : (flags == MC_CMD_GET_ASSERTS_FLAGS_WDOG_FIRED)
999 ? "watchdog reset"
1000 : "unknown assertion";
1001 netif_err(efx, hw, efx->net_dev,
1002 "MCPU %s at PC = 0x%.8x in thread 0x%.8x\n", reason,
1003 MCDI_DWORD(outbuf, GET_ASSERTS_OUT_SAVED_PC_OFFS),
1004 MCDI_DWORD(outbuf, GET_ASSERTS_OUT_THREAD_OFFS));
1005
1006 /* Print out the registers */
1007 ofst = MC_CMD_GET_ASSERTS_OUT_GP_REGS_OFFS_OFST;
1008 for (index = 1; index < 32; index++) {
1009 netif_err(efx, hw, efx->net_dev, "R%.2d (?): 0x%.8x\n", index,
1010 MCDI_DWORD2(outbuf, ofst));
1011 ofst += sizeof(efx_dword_t);
1012 }
1013
1014 return 0;
1015 }
1016
1017 static void efx_mcdi_exit_assertion(struct efx_nic *efx)
1018 {
1019 u8 inbuf[MC_CMD_REBOOT_IN_LEN];
1020
1021 /* Atomically reboot the mcfw out of the assertion handler */
1022 BUILD_BUG_ON(MC_CMD_REBOOT_OUT_LEN != 0);
1023 MCDI_SET_DWORD(inbuf, REBOOT_IN_FLAGS,
1024 MC_CMD_REBOOT_FLAGS_AFTER_ASSERTION);
1025 efx_mcdi_rpc(efx, MC_CMD_REBOOT, inbuf, MC_CMD_REBOOT_IN_LEN,
1026 NULL, 0, NULL);
1027 }
1028
1029 int efx_mcdi_handle_assertion(struct efx_nic *efx)
1030 {
1031 int rc;
1032
1033 rc = efx_mcdi_read_assertion(efx);
1034 if (rc)
1035 return rc;
1036
1037 efx_mcdi_exit_assertion(efx);
1038
1039 return 0;
1040 }
1041
1042 void efx_mcdi_set_id_led(struct efx_nic *efx, enum efx_led_mode mode)
1043 {
1044 u8 inbuf[MC_CMD_SET_ID_LED_IN_LEN];
1045 int rc;
1046
1047 BUILD_BUG_ON(EFX_LED_OFF != MC_CMD_LED_OFF);
1048 BUILD_BUG_ON(EFX_LED_ON != MC_CMD_LED_ON);
1049 BUILD_BUG_ON(EFX_LED_DEFAULT != MC_CMD_LED_DEFAULT);
1050
1051 BUILD_BUG_ON(MC_CMD_SET_ID_LED_OUT_LEN != 0);
1052
1053 MCDI_SET_DWORD(inbuf, SET_ID_LED_IN_STATE, mode);
1054
1055 rc = efx_mcdi_rpc(efx, MC_CMD_SET_ID_LED, inbuf, sizeof(inbuf),
1056 NULL, 0, NULL);
1057 if (rc)
1058 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
1059 __func__, rc);
1060 }
1061
1062 int efx_mcdi_reset_port(struct efx_nic *efx)
1063 {
1064 int rc = efx_mcdi_rpc(efx, MC_CMD_PORT_RESET, NULL, 0, NULL, 0, NULL);
1065 if (rc)
1066 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
1067 __func__, rc);
1068 return rc;
1069 }
1070
1071 int efx_mcdi_reset_mc(struct efx_nic *efx)
1072 {
1073 u8 inbuf[MC_CMD_REBOOT_IN_LEN];
1074 int rc;
1075
1076 BUILD_BUG_ON(MC_CMD_REBOOT_OUT_LEN != 0);
1077 MCDI_SET_DWORD(inbuf, REBOOT_IN_FLAGS, 0);
1078 rc = efx_mcdi_rpc(efx, MC_CMD_REBOOT, inbuf, sizeof(inbuf),
1079 NULL, 0, NULL);
1080 /* White is black, and up is down */
1081 if (rc == -EIO)
1082 return 0;
1083 if (rc == 0)
1084 rc = -EIO;
1085 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
1086 return rc;
1087 }
1088
1089 static int efx_mcdi_wol_filter_set(struct efx_nic *efx, u32 type,
1090 const u8 *mac, int *id_out)
1091 {
1092 u8 inbuf[MC_CMD_WOL_FILTER_SET_IN_LEN];
1093 u8 outbuf[MC_CMD_WOL_FILTER_SET_OUT_LEN];
1094 size_t outlen;
1095 int rc;
1096
1097 MCDI_SET_DWORD(inbuf, WOL_FILTER_SET_IN_WOL_TYPE, type);
1098 MCDI_SET_DWORD(inbuf, WOL_FILTER_SET_IN_FILTER_MODE,
1099 MC_CMD_FILTER_MODE_SIMPLE);
1100 memcpy(MCDI_PTR(inbuf, WOL_FILTER_SET_IN_MAGIC_MAC), mac, ETH_ALEN);
1101
1102 rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_SET, inbuf, sizeof(inbuf),
1103 outbuf, sizeof(outbuf), &outlen);
1104 if (rc)
1105 goto fail;
1106
1107 if (outlen < MC_CMD_WOL_FILTER_SET_OUT_LEN) {
1108 rc = -EIO;
1109 goto fail;
1110 }
1111
1112 *id_out = (int)MCDI_DWORD(outbuf, WOL_FILTER_SET_OUT_FILTER_ID);
1113
1114 return 0;
1115
1116 fail:
1117 *id_out = -1;
1118 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
1119 return rc;
1120
1121 }
1122
1123
1124 int
1125 efx_mcdi_wol_filter_set_magic(struct efx_nic *efx, const u8 *mac, int *id_out)
1126 {
1127 return efx_mcdi_wol_filter_set(efx, MC_CMD_WOL_TYPE_MAGIC, mac, id_out);
1128 }
1129
1130
1131 int efx_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out)
1132 {
1133 u8 outbuf[MC_CMD_WOL_FILTER_GET_OUT_LEN];
1134 size_t outlen;
1135 int rc;
1136
1137 rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_GET, NULL, 0,
1138 outbuf, sizeof(outbuf), &outlen);
1139 if (rc)
1140 goto fail;
1141
1142 if (outlen < MC_CMD_WOL_FILTER_GET_OUT_LEN) {
1143 rc = -EIO;
1144 goto fail;
1145 }
1146
1147 *id_out = (int)MCDI_DWORD(outbuf, WOL_FILTER_GET_OUT_FILTER_ID);
1148
1149 return 0;
1150
1151 fail:
1152 *id_out = -1;
1153 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
1154 return rc;
1155 }
1156
1157
1158 int efx_mcdi_wol_filter_remove(struct efx_nic *efx, int id)
1159 {
1160 u8 inbuf[MC_CMD_WOL_FILTER_REMOVE_IN_LEN];
1161 int rc;
1162
1163 MCDI_SET_DWORD(inbuf, WOL_FILTER_REMOVE_IN_FILTER_ID, (u32)id);
1164
1165 rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_REMOVE, inbuf, sizeof(inbuf),
1166 NULL, 0, NULL);
1167 if (rc)
1168 goto fail;
1169
1170 return 0;
1171
1172 fail:
1173 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
1174 return rc;
1175 }
1176
1177
1178 int efx_mcdi_wol_filter_reset(struct efx_nic *efx)
1179 {
1180 int rc;
1181
1182 rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_RESET, NULL, 0, NULL, 0, NULL);
1183 if (rc)
1184 goto fail;
1185
1186 return 0;
1187
1188 fail:
1189 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
1190 return rc;
1191 }
1192
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