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afd4aea0 BH |
1 | /**************************************************************************** |
2 | * Driver for Solarflare Solarstorm network controllers and boards | |
0a6f40c6 | 3 | * Copyright 2008-2011 Solarflare Communications Inc. |
afd4aea0 BH |
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 | ||
747df225 BH |
53 | static inline void |
54 | efx_mcdi_readd(struct efx_nic *efx, efx_dword_t *value, unsigned reg) | |
55 | { | |
56 | struct siena_nic_data *nic_data = efx->nic_data; | |
57 | value->u32[0] = (__force __le32)__raw_readl(nic_data->mcdi_smem + reg); | |
58 | } | |
59 | ||
60 | static inline void | |
61 | efx_mcdi_writed(struct efx_nic *efx, const efx_dword_t *value, unsigned reg) | |
62 | { | |
63 | struct siena_nic_data *nic_data = efx->nic_data; | |
64 | __raw_writel((__force u32)value->u32[0], nic_data->mcdi_smem + reg); | |
65 | } | |
66 | ||
afd4aea0 BH |
67 | void efx_mcdi_init(struct efx_nic *efx) |
68 | { | |
69 | struct efx_mcdi_iface *mcdi; | |
70 | ||
71 | if (efx_nic_rev(efx) < EFX_REV_SIENA_A0) | |
72 | return; | |
73 | ||
74 | mcdi = efx_mcdi(efx); | |
75 | init_waitqueue_head(&mcdi->wq); | |
76 | spin_lock_init(&mcdi->iface_lock); | |
77 | atomic_set(&mcdi->state, MCDI_STATE_QUIESCENT); | |
78 | mcdi->mode = MCDI_MODE_POLL; | |
79 | ||
80 | (void) efx_mcdi_poll_reboot(efx); | |
81 | } | |
82 | ||
83 | static void efx_mcdi_copyin(struct efx_nic *efx, unsigned cmd, | |
84 | const u8 *inbuf, size_t inlen) | |
85 | { | |
86 | struct efx_mcdi_iface *mcdi = efx_mcdi(efx); | |
747df225 BH |
87 | unsigned pdu = MCDI_PDU(efx); |
88 | unsigned doorbell = MCDI_DOORBELL(efx); | |
afd4aea0 BH |
89 | unsigned int i; |
90 | efx_dword_t hdr; | |
91 | u32 xflags, seqno; | |
92 | ||
93 | BUG_ON(atomic_read(&mcdi->state) == MCDI_STATE_QUIESCENT); | |
94 | BUG_ON(inlen & 3 || inlen >= 0x100); | |
95 | ||
96 | seqno = mcdi->seqno & SEQ_MASK; | |
97 | xflags = 0; | |
98 | if (mcdi->mode == MCDI_MODE_EVENTS) | |
99 | xflags |= MCDI_HEADER_XFLAGS_EVREQ; | |
100 | ||
101 | EFX_POPULATE_DWORD_6(hdr, | |
102 | MCDI_HEADER_RESPONSE, 0, | |
103 | MCDI_HEADER_RESYNC, 1, | |
104 | MCDI_HEADER_CODE, cmd, | |
105 | MCDI_HEADER_DATALEN, inlen, | |
106 | MCDI_HEADER_SEQ, seqno, | |
107 | MCDI_HEADER_XFLAGS, xflags); | |
108 | ||
747df225 | 109 | efx_mcdi_writed(efx, &hdr, pdu); |
afd4aea0 | 110 | |
747df225 BH |
111 | for (i = 0; i < inlen; i += 4) |
112 | efx_mcdi_writed(efx, (const efx_dword_t *)(inbuf + i), | |
113 | pdu + 4 + i); | |
afd4aea0 BH |
114 | |
115 | /* ring the doorbell with a distinctive value */ | |
747df225 BH |
116 | EFX_POPULATE_DWORD_1(hdr, EFX_DWORD_0, 0x45789abc); |
117 | efx_mcdi_writed(efx, &hdr, doorbell); | |
afd4aea0 BH |
118 | } |
119 | ||
120 | static void efx_mcdi_copyout(struct efx_nic *efx, u8 *outbuf, size_t outlen) | |
121 | { | |
122 | struct efx_mcdi_iface *mcdi = efx_mcdi(efx); | |
747df225 | 123 | unsigned int pdu = MCDI_PDU(efx); |
afd4aea0 BH |
124 | int i; |
125 | ||
126 | BUG_ON(atomic_read(&mcdi->state) == MCDI_STATE_QUIESCENT); | |
127 | BUG_ON(outlen & 3 || outlen >= 0x100); | |
128 | ||
129 | for (i = 0; i < outlen; i += 4) | |
747df225 | 130 | efx_mcdi_readd(efx, (efx_dword_t *)(outbuf + i), pdu + 4 + i); |
afd4aea0 BH |
131 | } |
132 | ||
133 | static int efx_mcdi_poll(struct efx_nic *efx) | |
134 | { | |
135 | struct efx_mcdi_iface *mcdi = efx_mcdi(efx); | |
136 | unsigned int time, finish; | |
137 | unsigned int respseq, respcmd, error; | |
747df225 | 138 | unsigned int pdu = MCDI_PDU(efx); |
afd4aea0 BH |
139 | unsigned int rc, spins; |
140 | efx_dword_t reg; | |
141 | ||
142 | /* Check for a reboot atomically with respect to efx_mcdi_copyout() */ | |
e0bf54c9 | 143 | rc = -efx_mcdi_poll_reboot(efx); |
afd4aea0 BH |
144 | if (rc) |
145 | goto out; | |
146 | ||
147 | /* Poll for completion. Poll quickly (once a us) for the 1st jiffy, | |
148 | * because generally mcdi responses are fast. After that, back off | |
149 | * and poll once a jiffy (approximately) | |
150 | */ | |
151 | spins = TICK_USEC; | |
152 | finish = get_seconds() + MCDI_RPC_TIMEOUT; | |
153 | ||
154 | while (1) { | |
155 | if (spins != 0) { | |
156 | --spins; | |
157 | udelay(1); | |
55029c1d BH |
158 | } else { |
159 | schedule_timeout_uninterruptible(1); | |
160 | } | |
afd4aea0 BH |
161 | |
162 | time = get_seconds(); | |
163 | ||
747df225 | 164 | efx_mcdi_readd(efx, ®, pdu); |
afd4aea0 BH |
165 | |
166 | /* All 1's indicates that shared memory is in reset (and is | |
167 | * not a valid header). Wait for it to come out reset before | |
168 | * completing the command */ | |
169 | if (EFX_DWORD_FIELD(reg, EFX_DWORD_0) != 0xffffffff && | |
170 | EFX_DWORD_FIELD(reg, MCDI_HEADER_RESPONSE)) | |
171 | break; | |
172 | ||
173 | if (time >= finish) | |
174 | return -ETIMEDOUT; | |
175 | } | |
176 | ||
177 | mcdi->resplen = EFX_DWORD_FIELD(reg, MCDI_HEADER_DATALEN); | |
178 | respseq = EFX_DWORD_FIELD(reg, MCDI_HEADER_SEQ); | |
179 | respcmd = EFX_DWORD_FIELD(reg, MCDI_HEADER_CODE); | |
180 | error = EFX_DWORD_FIELD(reg, MCDI_HEADER_ERROR); | |
181 | ||
182 | if (error && mcdi->resplen == 0) { | |
62776d03 | 183 | netif_err(efx, hw, efx->net_dev, "MC rebooted\n"); |
afd4aea0 BH |
184 | rc = EIO; |
185 | } else if ((respseq ^ mcdi->seqno) & SEQ_MASK) { | |
62776d03 BH |
186 | netif_err(efx, hw, efx->net_dev, |
187 | "MC response mismatch tx seq 0x%x rx seq 0x%x\n", | |
188 | respseq, mcdi->seqno); | |
afd4aea0 BH |
189 | rc = EIO; |
190 | } else if (error) { | |
747df225 | 191 | efx_mcdi_readd(efx, ®, pdu + 4); |
afd4aea0 BH |
192 | switch (EFX_DWORD_FIELD(reg, EFX_DWORD_0)) { |
193 | #define TRANSLATE_ERROR(name) \ | |
194 | case MC_CMD_ERR_ ## name: \ | |
195 | rc = name; \ | |
196 | break | |
197 | TRANSLATE_ERROR(ENOENT); | |
198 | TRANSLATE_ERROR(EINTR); | |
199 | TRANSLATE_ERROR(EACCES); | |
200 | TRANSLATE_ERROR(EBUSY); | |
201 | TRANSLATE_ERROR(EINVAL); | |
202 | TRANSLATE_ERROR(EDEADLK); | |
203 | TRANSLATE_ERROR(ENOSYS); | |
204 | TRANSLATE_ERROR(ETIME); | |
205 | #undef TRANSLATE_ERROR | |
206 | default: | |
207 | rc = EIO; | |
208 | break; | |
209 | } | |
210 | } else | |
211 | rc = 0; | |
212 | ||
213 | out: | |
214 | mcdi->resprc = rc; | |
215 | if (rc) | |
216 | mcdi->resplen = 0; | |
217 | ||
218 | /* Return rc=0 like wait_event_timeout() */ | |
219 | return 0; | |
220 | } | |
221 | ||
222 | /* Test and clear MC-rebooted flag for this port/function */ | |
223 | int efx_mcdi_poll_reboot(struct efx_nic *efx) | |
224 | { | |
747df225 | 225 | unsigned int addr = MCDI_REBOOT_FLAG(efx); |
afd4aea0 BH |
226 | efx_dword_t reg; |
227 | uint32_t value; | |
228 | ||
229 | if (efx_nic_rev(efx) < EFX_REV_SIENA_A0) | |
230 | return false; | |
231 | ||
747df225 | 232 | efx_mcdi_readd(efx, ®, addr); |
afd4aea0 BH |
233 | value = EFX_DWORD_FIELD(reg, EFX_DWORD_0); |
234 | ||
235 | if (value == 0) | |
236 | return 0; | |
237 | ||
238 | EFX_ZERO_DWORD(reg); | |
747df225 | 239 | efx_mcdi_writed(efx, ®, addr); |
afd4aea0 BH |
240 | |
241 | if (value == MC_STATUS_DWORD_ASSERT) | |
242 | return -EINTR; | |
243 | else | |
244 | return -EIO; | |
245 | } | |
246 | ||
247 | static void efx_mcdi_acquire(struct efx_mcdi_iface *mcdi) | |
248 | { | |
249 | /* Wait until the interface becomes QUIESCENT and we win the race | |
250 | * to mark it RUNNING. */ | |
251 | wait_event(mcdi->wq, | |
252 | atomic_cmpxchg(&mcdi->state, | |
253 | MCDI_STATE_QUIESCENT, | |
254 | MCDI_STATE_RUNNING) | |
255 | == MCDI_STATE_QUIESCENT); | |
256 | } | |
257 | ||
258 | static int efx_mcdi_await_completion(struct efx_nic *efx) | |
259 | { | |
260 | struct efx_mcdi_iface *mcdi = efx_mcdi(efx); | |
261 | ||
262 | if (wait_event_timeout( | |
263 | mcdi->wq, | |
264 | atomic_read(&mcdi->state) == MCDI_STATE_COMPLETED, | |
265 | msecs_to_jiffies(MCDI_RPC_TIMEOUT * 1000)) == 0) | |
266 | return -ETIMEDOUT; | |
267 | ||
268 | /* Check if efx_mcdi_set_mode() switched us back to polled completions. | |
269 | * In which case, poll for completions directly. If efx_mcdi_ev_cpl() | |
270 | * completed the request first, then we'll just end up completing the | |
271 | * request again, which is safe. | |
272 | * | |
273 | * We need an smp_rmb() to synchronise with efx_mcdi_mode_poll(), which | |
274 | * wait_event_timeout() implicitly provides. | |
275 | */ | |
276 | if (mcdi->mode == MCDI_MODE_POLL) | |
277 | return efx_mcdi_poll(efx); | |
278 | ||
279 | return 0; | |
280 | } | |
281 | ||
282 | static bool efx_mcdi_complete(struct efx_mcdi_iface *mcdi) | |
283 | { | |
284 | /* If the interface is RUNNING, then move to COMPLETED and wake any | |
285 | * waiters. If the interface isn't in RUNNING then we've received a | |
286 | * duplicate completion after we've already transitioned back to | |
287 | * QUIESCENT. [A subsequent invocation would increment seqno, so would | |
288 | * have failed the seqno check]. | |
289 | */ | |
290 | if (atomic_cmpxchg(&mcdi->state, | |
291 | MCDI_STATE_RUNNING, | |
292 | MCDI_STATE_COMPLETED) == MCDI_STATE_RUNNING) { | |
293 | wake_up(&mcdi->wq); | |
294 | return true; | |
295 | } | |
296 | ||
297 | return false; | |
298 | } | |
299 | ||
300 | static void efx_mcdi_release(struct efx_mcdi_iface *mcdi) | |
301 | { | |
302 | atomic_set(&mcdi->state, MCDI_STATE_QUIESCENT); | |
303 | wake_up(&mcdi->wq); | |
304 | } | |
305 | ||
306 | static void efx_mcdi_ev_cpl(struct efx_nic *efx, unsigned int seqno, | |
307 | unsigned int datalen, unsigned int errno) | |
308 | { | |
309 | struct efx_mcdi_iface *mcdi = efx_mcdi(efx); | |
310 | bool wake = false; | |
311 | ||
312 | spin_lock(&mcdi->iface_lock); | |
313 | ||
314 | if ((seqno ^ mcdi->seqno) & SEQ_MASK) { | |
315 | if (mcdi->credits) | |
316 | /* The request has been cancelled */ | |
317 | --mcdi->credits; | |
318 | else | |
62776d03 BH |
319 | netif_err(efx, hw, efx->net_dev, |
320 | "MC response mismatch tx seq 0x%x rx " | |
321 | "seq 0x%x\n", seqno, mcdi->seqno); | |
afd4aea0 BH |
322 | } else { |
323 | mcdi->resprc = errno; | |
324 | mcdi->resplen = datalen; | |
325 | ||
326 | wake = true; | |
327 | } | |
328 | ||
329 | spin_unlock(&mcdi->iface_lock); | |
330 | ||
331 | if (wake) | |
332 | efx_mcdi_complete(mcdi); | |
333 | } | |
334 | ||
335 | /* Issue the given command by writing the data into the shared memory PDU, | |
336 | * ring the doorbell and wait for completion. Copyout the result. */ | |
337 | int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd, | |
338 | const u8 *inbuf, size_t inlen, u8 *outbuf, size_t outlen, | |
339 | size_t *outlen_actual) | |
340 | { | |
341 | struct efx_mcdi_iface *mcdi = efx_mcdi(efx); | |
342 | int rc; | |
343 | BUG_ON(efx_nic_rev(efx) < EFX_REV_SIENA_A0); | |
344 | ||
345 | efx_mcdi_acquire(mcdi); | |
346 | ||
347 | /* Serialise with efx_mcdi_ev_cpl() and efx_mcdi_ev_death() */ | |
348 | spin_lock_bh(&mcdi->iface_lock); | |
349 | ++mcdi->seqno; | |
350 | spin_unlock_bh(&mcdi->iface_lock); | |
351 | ||
352 | efx_mcdi_copyin(efx, cmd, inbuf, inlen); | |
353 | ||
354 | if (mcdi->mode == MCDI_MODE_POLL) | |
355 | rc = efx_mcdi_poll(efx); | |
356 | else | |
357 | rc = efx_mcdi_await_completion(efx); | |
358 | ||
359 | if (rc != 0) { | |
360 | /* Close the race with efx_mcdi_ev_cpl() executing just too late | |
361 | * and completing a request we've just cancelled, by ensuring | |
362 | * that the seqno check therein fails. | |
363 | */ | |
364 | spin_lock_bh(&mcdi->iface_lock); | |
365 | ++mcdi->seqno; | |
366 | ++mcdi->credits; | |
367 | spin_unlock_bh(&mcdi->iface_lock); | |
368 | ||
62776d03 BH |
369 | netif_err(efx, hw, efx->net_dev, |
370 | "MC command 0x%x inlen %d mode %d timed out\n", | |
371 | cmd, (int)inlen, mcdi->mode); | |
afd4aea0 BH |
372 | } else { |
373 | size_t resplen; | |
374 | ||
375 | /* At the very least we need a memory barrier here to ensure | |
376 | * we pick up changes from efx_mcdi_ev_cpl(). Protect against | |
377 | * a spurious efx_mcdi_ev_cpl() running concurrently by | |
378 | * acquiring the iface_lock. */ | |
379 | spin_lock_bh(&mcdi->iface_lock); | |
380 | rc = -mcdi->resprc; | |
381 | resplen = mcdi->resplen; | |
382 | spin_unlock_bh(&mcdi->iface_lock); | |
383 | ||
384 | if (rc == 0) { | |
385 | efx_mcdi_copyout(efx, outbuf, | |
386 | min(outlen, mcdi->resplen + 3) & ~0x3); | |
387 | if (outlen_actual != NULL) | |
388 | *outlen_actual = resplen; | |
389 | } else if (cmd == MC_CMD_REBOOT && rc == -EIO) | |
390 | ; /* Don't reset if MC_CMD_REBOOT returns EIO */ | |
391 | else if (rc == -EIO || rc == -EINTR) { | |
62776d03 BH |
392 | netif_err(efx, hw, efx->net_dev, "MC fatal error %d\n", |
393 | -rc); | |
afd4aea0 BH |
394 | efx_schedule_reset(efx, RESET_TYPE_MC_FAILURE); |
395 | } else | |
f18ca364 | 396 | netif_dbg(efx, hw, efx->net_dev, |
62776d03 BH |
397 | "MC command 0x%x inlen %d failed rc=%d\n", |
398 | cmd, (int)inlen, -rc); | |
afd4aea0 BH |
399 | } |
400 | ||
401 | efx_mcdi_release(mcdi); | |
402 | return rc; | |
403 | } | |
404 | ||
405 | void efx_mcdi_mode_poll(struct efx_nic *efx) | |
406 | { | |
407 | struct efx_mcdi_iface *mcdi; | |
408 | ||
409 | if (efx_nic_rev(efx) < EFX_REV_SIENA_A0) | |
410 | return; | |
411 | ||
412 | mcdi = efx_mcdi(efx); | |
413 | if (mcdi->mode == MCDI_MODE_POLL) | |
414 | return; | |
415 | ||
416 | /* We can switch from event completion to polled completion, because | |
417 | * mcdi requests are always completed in shared memory. We do this by | |
418 | * switching the mode to POLL'd then completing the request. | |
419 | * efx_mcdi_await_completion() will then call efx_mcdi_poll(). | |
420 | * | |
421 | * We need an smp_wmb() to synchronise with efx_mcdi_await_completion(), | |
422 | * which efx_mcdi_complete() provides for us. | |
423 | */ | |
424 | mcdi->mode = MCDI_MODE_POLL; | |
425 | ||
426 | efx_mcdi_complete(mcdi); | |
427 | } | |
428 | ||
429 | void efx_mcdi_mode_event(struct efx_nic *efx) | |
430 | { | |
431 | struct efx_mcdi_iface *mcdi; | |
432 | ||
433 | if (efx_nic_rev(efx) < EFX_REV_SIENA_A0) | |
434 | return; | |
435 | ||
436 | mcdi = efx_mcdi(efx); | |
437 | ||
438 | if (mcdi->mode == MCDI_MODE_EVENTS) | |
439 | return; | |
440 | ||
441 | /* We can't switch from polled to event completion in the middle of a | |
442 | * request, because the completion method is specified in the request. | |
443 | * So acquire the interface to serialise the requestors. We don't need | |
444 | * to acquire the iface_lock to change the mode here, but we do need a | |
445 | * write memory barrier ensure that efx_mcdi_rpc() sees it, which | |
446 | * efx_mcdi_acquire() provides. | |
447 | */ | |
448 | efx_mcdi_acquire(mcdi); | |
449 | mcdi->mode = MCDI_MODE_EVENTS; | |
450 | efx_mcdi_release(mcdi); | |
451 | } | |
452 | ||
453 | static void efx_mcdi_ev_death(struct efx_nic *efx, int rc) | |
454 | { | |
455 | struct efx_mcdi_iface *mcdi = efx_mcdi(efx); | |
456 | ||
457 | /* If there is an outstanding MCDI request, it has been terminated | |
458 | * either by a BADASSERT or REBOOT event. If the mcdi interface is | |
459 | * in polled mode, then do nothing because the MC reboot handler will | |
460 | * set the header correctly. However, if the mcdi interface is waiting | |
461 | * for a CMDDONE event it won't receive it [and since all MCDI events | |
462 | * are sent to the same queue, we can't be racing with | |
463 | * efx_mcdi_ev_cpl()] | |
464 | * | |
465 | * There's a race here with efx_mcdi_rpc(), because we might receive | |
466 | * a REBOOT event *before* the request has been copied out. In polled | |
25985edc | 467 | * mode (during startup) this is irrelevant, because efx_mcdi_complete() |
afd4aea0 BH |
468 | * is ignored. In event mode, this condition is just an edge-case of |
469 | * receiving a REBOOT event after posting the MCDI request. Did the mc | |
470 | * reboot before or after the copyout? The best we can do always is | |
471 | * just return failure. | |
472 | */ | |
473 | spin_lock(&mcdi->iface_lock); | |
474 | if (efx_mcdi_complete(mcdi)) { | |
475 | if (mcdi->mode == MCDI_MODE_EVENTS) { | |
476 | mcdi->resprc = rc; | |
477 | mcdi->resplen = 0; | |
18e3ee2c | 478 | ++mcdi->credits; |
afd4aea0 BH |
479 | } |
480 | } else | |
481 | /* Nobody was waiting for an MCDI request, so trigger a reset */ | |
482 | efx_schedule_reset(efx, RESET_TYPE_MC_FAILURE); | |
483 | ||
484 | spin_unlock(&mcdi->iface_lock); | |
485 | } | |
486 | ||
487 | static unsigned int efx_mcdi_event_link_speed[] = { | |
488 | [MCDI_EVENT_LINKCHANGE_SPEED_100M] = 100, | |
489 | [MCDI_EVENT_LINKCHANGE_SPEED_1G] = 1000, | |
490 | [MCDI_EVENT_LINKCHANGE_SPEED_10G] = 10000, | |
491 | }; | |
492 | ||
493 | ||
494 | static void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev) | |
495 | { | |
496 | u32 flags, fcntl, speed, lpa; | |
497 | ||
498 | speed = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_SPEED); | |
499 | EFX_BUG_ON_PARANOID(speed >= ARRAY_SIZE(efx_mcdi_event_link_speed)); | |
500 | speed = efx_mcdi_event_link_speed[speed]; | |
501 | ||
502 | flags = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LINK_FLAGS); | |
503 | fcntl = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_FCNTL); | |
504 | lpa = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LP_CAP); | |
505 | ||
506 | /* efx->link_state is only modified by efx_mcdi_phy_get_link(), | |
507 | * which is only run after flushing the event queues. Therefore, it | |
508 | * is safe to modify the link state outside of the mac_lock here. | |
509 | */ | |
510 | efx_mcdi_phy_decode_link(efx, &efx->link_state, speed, flags, fcntl); | |
511 | ||
512 | efx_mcdi_phy_check_fcntl(efx, lpa); | |
513 | ||
514 | efx_link_status_changed(efx); | |
515 | } | |
516 | ||
517 | static const char *sensor_names[] = { | |
518 | [MC_CMD_SENSOR_CONTROLLER_TEMP] = "Controller temp. sensor", | |
519 | [MC_CMD_SENSOR_PHY_COMMON_TEMP] = "PHY shared temp. sensor", | |
520 | [MC_CMD_SENSOR_CONTROLLER_COOLING] = "Controller cooling", | |
521 | [MC_CMD_SENSOR_PHY0_TEMP] = "PHY 0 temp. sensor", | |
522 | [MC_CMD_SENSOR_PHY0_COOLING] = "PHY 0 cooling", | |
523 | [MC_CMD_SENSOR_PHY1_TEMP] = "PHY 1 temp. sensor", | |
524 | [MC_CMD_SENSOR_PHY1_COOLING] = "PHY 1 cooling", | |
525 | [MC_CMD_SENSOR_IN_1V0] = "1.0V supply sensor", | |
526 | [MC_CMD_SENSOR_IN_1V2] = "1.2V supply sensor", | |
527 | [MC_CMD_SENSOR_IN_1V8] = "1.8V supply sensor", | |
528 | [MC_CMD_SENSOR_IN_2V5] = "2.5V supply sensor", | |
529 | [MC_CMD_SENSOR_IN_3V3] = "3.3V supply sensor", | |
530 | [MC_CMD_SENSOR_IN_12V0] = "12V supply sensor" | |
531 | }; | |
532 | ||
533 | static const char *sensor_status_names[] = { | |
534 | [MC_CMD_SENSOR_STATE_OK] = "OK", | |
535 | [MC_CMD_SENSOR_STATE_WARNING] = "Warning", | |
536 | [MC_CMD_SENSOR_STATE_FATAL] = "Fatal", | |
537 | [MC_CMD_SENSOR_STATE_BROKEN] = "Device failure", | |
538 | }; | |
539 | ||
540 | static void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev) | |
541 | { | |
542 | unsigned int monitor, state, value; | |
543 | const char *name, *state_txt; | |
544 | monitor = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_MONITOR); | |
545 | state = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_STATE); | |
546 | value = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_VALUE); | |
547 | /* Deal gracefully with the board having more drivers than we | |
548 | * know about, but do not expect new sensor states. */ | |
549 | name = (monitor >= ARRAY_SIZE(sensor_names)) | |
550 | ? "No sensor name available" : | |
551 | sensor_names[monitor]; | |
552 | EFX_BUG_ON_PARANOID(state >= ARRAY_SIZE(sensor_status_names)); | |
553 | state_txt = sensor_status_names[state]; | |
554 | ||
62776d03 BH |
555 | netif_err(efx, hw, efx->net_dev, |
556 | "Sensor %d (%s) reports condition '%s' for raw value %d\n", | |
557 | monitor, name, state_txt, value); | |
afd4aea0 BH |
558 | } |
559 | ||
560 | /* Called from falcon_process_eventq for MCDI events */ | |
561 | void efx_mcdi_process_event(struct efx_channel *channel, | |
562 | efx_qword_t *event) | |
563 | { | |
564 | struct efx_nic *efx = channel->efx; | |
565 | int code = EFX_QWORD_FIELD(*event, MCDI_EVENT_CODE); | |
566 | u32 data = EFX_QWORD_FIELD(*event, MCDI_EVENT_DATA); | |
567 | ||
568 | switch (code) { | |
569 | case MCDI_EVENT_CODE_BADSSERT: | |
62776d03 BH |
570 | netif_err(efx, hw, efx->net_dev, |
571 | "MC watchdog or assertion failure at 0x%x\n", data); | |
afd4aea0 BH |
572 | efx_mcdi_ev_death(efx, EINTR); |
573 | break; | |
574 | ||
575 | case MCDI_EVENT_CODE_PMNOTICE: | |
62776d03 | 576 | netif_info(efx, wol, efx->net_dev, "MCDI PM event.\n"); |
afd4aea0 BH |
577 | break; |
578 | ||
579 | case MCDI_EVENT_CODE_CMDDONE: | |
580 | efx_mcdi_ev_cpl(efx, | |
581 | MCDI_EVENT_FIELD(*event, CMDDONE_SEQ), | |
582 | MCDI_EVENT_FIELD(*event, CMDDONE_DATALEN), | |
583 | MCDI_EVENT_FIELD(*event, CMDDONE_ERRNO)); | |
584 | break; | |
585 | ||
586 | case MCDI_EVENT_CODE_LINKCHANGE: | |
587 | efx_mcdi_process_link_change(efx, event); | |
588 | break; | |
589 | case MCDI_EVENT_CODE_SENSOREVT: | |
590 | efx_mcdi_sensor_event(efx, event); | |
591 | break; | |
592 | case MCDI_EVENT_CODE_SCHEDERR: | |
62776d03 BH |
593 | netif_info(efx, hw, efx->net_dev, |
594 | "MC Scheduler error address=0x%x\n", data); | |
afd4aea0 BH |
595 | break; |
596 | case MCDI_EVENT_CODE_REBOOT: | |
62776d03 | 597 | netif_info(efx, hw, efx->net_dev, "MC Reboot\n"); |
afd4aea0 BH |
598 | efx_mcdi_ev_death(efx, EIO); |
599 | break; | |
600 | case MCDI_EVENT_CODE_MAC_STATS_DMA: | |
601 | /* MAC stats are gather lazily. We can ignore this. */ | |
602 | break; | |
603 | ||
604 | default: | |
62776d03 BH |
605 | netif_err(efx, hw, efx->net_dev, "Unknown MCDI event 0x%x\n", |
606 | code); | |
afd4aea0 BH |
607 | } |
608 | } | |
609 | ||
610 | /************************************************************************** | |
611 | * | |
612 | * Specific request functions | |
613 | * | |
614 | ************************************************************************** | |
615 | */ | |
616 | ||
e5f0fd27 | 617 | void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len) |
afd4aea0 BH |
618 | { |
619 | u8 outbuf[ALIGN(MC_CMD_GET_VERSION_V1_OUT_LEN, 4)]; | |
620 | size_t outlength; | |
621 | const __le16 *ver_words; | |
622 | int rc; | |
623 | ||
624 | BUILD_BUG_ON(MC_CMD_GET_VERSION_IN_LEN != 0); | |
625 | ||
626 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_VERSION, NULL, 0, | |
627 | outbuf, sizeof(outbuf), &outlength); | |
628 | if (rc) | |
629 | goto fail; | |
630 | ||
afd4aea0 | 631 | if (outlength < MC_CMD_GET_VERSION_V1_OUT_LEN) { |
00bbb4a5 | 632 | rc = -EIO; |
afd4aea0 BH |
633 | goto fail; |
634 | } | |
635 | ||
636 | ver_words = (__le16 *)MCDI_PTR(outbuf, GET_VERSION_OUT_VERSION); | |
e5f0fd27 BH |
637 | snprintf(buf, len, "%u.%u.%u.%u", |
638 | le16_to_cpu(ver_words[0]), le16_to_cpu(ver_words[1]), | |
639 | le16_to_cpu(ver_words[2]), le16_to_cpu(ver_words[3])); | |
640 | return; | |
afd4aea0 BH |
641 | |
642 | fail: | |
62776d03 | 643 | netif_err(efx, probe, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
e5f0fd27 | 644 | buf[0] = 0; |
afd4aea0 BH |
645 | } |
646 | ||
647 | int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating, | |
648 | bool *was_attached) | |
649 | { | |
650 | u8 inbuf[MC_CMD_DRV_ATTACH_IN_LEN]; | |
651 | u8 outbuf[MC_CMD_DRV_ATTACH_OUT_LEN]; | |
652 | size_t outlen; | |
653 | int rc; | |
654 | ||
655 | MCDI_SET_DWORD(inbuf, DRV_ATTACH_IN_NEW_STATE, | |
656 | driver_operating ? 1 : 0); | |
657 | MCDI_SET_DWORD(inbuf, DRV_ATTACH_IN_UPDATE, 1); | |
658 | ||
659 | rc = efx_mcdi_rpc(efx, MC_CMD_DRV_ATTACH, inbuf, sizeof(inbuf), | |
660 | outbuf, sizeof(outbuf), &outlen); | |
661 | if (rc) | |
662 | goto fail; | |
00bbb4a5 BH |
663 | if (outlen < MC_CMD_DRV_ATTACH_OUT_LEN) { |
664 | rc = -EIO; | |
afd4aea0 | 665 | goto fail; |
00bbb4a5 | 666 | } |
afd4aea0 BH |
667 | |
668 | if (was_attached != NULL) | |
669 | *was_attached = MCDI_DWORD(outbuf, DRV_ATTACH_OUT_OLD_STATE); | |
670 | return 0; | |
671 | ||
672 | fail: | |
62776d03 | 673 | netif_err(efx, probe, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
674 | return rc; |
675 | } | |
676 | ||
677 | int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address, | |
678 | u16 *fw_subtype_list) | |
679 | { | |
680 | uint8_t outbuf[MC_CMD_GET_BOARD_CFG_OUT_LEN]; | |
681 | size_t outlen; | |
682 | int port_num = efx_port_num(efx); | |
683 | int offset; | |
684 | int rc; | |
685 | ||
686 | BUILD_BUG_ON(MC_CMD_GET_BOARD_CFG_IN_LEN != 0); | |
687 | ||
688 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_BOARD_CFG, NULL, 0, | |
689 | outbuf, sizeof(outbuf), &outlen); | |
690 | if (rc) | |
691 | goto fail; | |
692 | ||
693 | if (outlen < MC_CMD_GET_BOARD_CFG_OUT_LEN) { | |
00bbb4a5 | 694 | rc = -EIO; |
afd4aea0 BH |
695 | goto fail; |
696 | } | |
697 | ||
698 | offset = (port_num) | |
699 | ? MC_CMD_GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT1_OFST | |
700 | : MC_CMD_GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT0_OFST; | |
701 | if (mac_address) | |
702 | memcpy(mac_address, outbuf + offset, ETH_ALEN); | |
703 | if (fw_subtype_list) | |
704 | memcpy(fw_subtype_list, | |
705 | outbuf + MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_OFST, | |
706 | MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_LEN); | |
707 | ||
708 | return 0; | |
709 | ||
710 | fail: | |
62776d03 BH |
711 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d len=%d\n", |
712 | __func__, rc, (int)outlen); | |
afd4aea0 BH |
713 | |
714 | return rc; | |
715 | } | |
716 | ||
717 | int efx_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart, u32 dest_evq) | |
718 | { | |
719 | u8 inbuf[MC_CMD_LOG_CTRL_IN_LEN]; | |
720 | u32 dest = 0; | |
721 | int rc; | |
722 | ||
723 | if (uart) | |
724 | dest |= MC_CMD_LOG_CTRL_IN_LOG_DEST_UART; | |
725 | if (evq) | |
726 | dest |= MC_CMD_LOG_CTRL_IN_LOG_DEST_EVQ; | |
727 | ||
728 | MCDI_SET_DWORD(inbuf, LOG_CTRL_IN_LOG_DEST, dest); | |
729 | MCDI_SET_DWORD(inbuf, LOG_CTRL_IN_LOG_DEST_EVQ, dest_evq); | |
730 | ||
731 | BUILD_BUG_ON(MC_CMD_LOG_CTRL_OUT_LEN != 0); | |
732 | ||
733 | rc = efx_mcdi_rpc(efx, MC_CMD_LOG_CTRL, inbuf, sizeof(inbuf), | |
734 | NULL, 0, NULL); | |
735 | if (rc) | |
736 | goto fail; | |
737 | ||
738 | return 0; | |
739 | ||
740 | fail: | |
62776d03 | 741 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
742 | return rc; |
743 | } | |
744 | ||
745 | int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out) | |
746 | { | |
747 | u8 outbuf[MC_CMD_NVRAM_TYPES_OUT_LEN]; | |
748 | size_t outlen; | |
749 | int rc; | |
750 | ||
751 | BUILD_BUG_ON(MC_CMD_NVRAM_TYPES_IN_LEN != 0); | |
752 | ||
753 | rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_TYPES, NULL, 0, | |
754 | outbuf, sizeof(outbuf), &outlen); | |
755 | if (rc) | |
756 | goto fail; | |
00bbb4a5 BH |
757 | if (outlen < MC_CMD_NVRAM_TYPES_OUT_LEN) { |
758 | rc = -EIO; | |
afd4aea0 | 759 | goto fail; |
00bbb4a5 | 760 | } |
afd4aea0 BH |
761 | |
762 | *nvram_types_out = MCDI_DWORD(outbuf, NVRAM_TYPES_OUT_TYPES); | |
763 | return 0; | |
764 | ||
765 | fail: | |
62776d03 BH |
766 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", |
767 | __func__, rc); | |
afd4aea0 BH |
768 | return rc; |
769 | } | |
770 | ||
771 | int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type, | |
772 | size_t *size_out, size_t *erase_size_out, | |
773 | bool *protected_out) | |
774 | { | |
775 | u8 inbuf[MC_CMD_NVRAM_INFO_IN_LEN]; | |
776 | u8 outbuf[MC_CMD_NVRAM_INFO_OUT_LEN]; | |
777 | size_t outlen; | |
778 | int rc; | |
779 | ||
780 | MCDI_SET_DWORD(inbuf, NVRAM_INFO_IN_TYPE, type); | |
781 | ||
782 | rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_INFO, inbuf, sizeof(inbuf), | |
783 | outbuf, sizeof(outbuf), &outlen); | |
784 | if (rc) | |
785 | goto fail; | |
00bbb4a5 BH |
786 | if (outlen < MC_CMD_NVRAM_INFO_OUT_LEN) { |
787 | rc = -EIO; | |
afd4aea0 | 788 | goto fail; |
00bbb4a5 | 789 | } |
afd4aea0 BH |
790 | |
791 | *size_out = MCDI_DWORD(outbuf, NVRAM_INFO_OUT_SIZE); | |
792 | *erase_size_out = MCDI_DWORD(outbuf, NVRAM_INFO_OUT_ERASESIZE); | |
793 | *protected_out = !!(MCDI_DWORD(outbuf, NVRAM_INFO_OUT_FLAGS) & | |
794 | (1 << MC_CMD_NVRAM_PROTECTED_LBN)); | |
795 | return 0; | |
796 | ||
797 | fail: | |
62776d03 | 798 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
799 | return rc; |
800 | } | |
801 | ||
802 | int efx_mcdi_nvram_update_start(struct efx_nic *efx, unsigned int type) | |
803 | { | |
804 | u8 inbuf[MC_CMD_NVRAM_UPDATE_START_IN_LEN]; | |
805 | int rc; | |
806 | ||
807 | MCDI_SET_DWORD(inbuf, NVRAM_UPDATE_START_IN_TYPE, type); | |
808 | ||
809 | BUILD_BUG_ON(MC_CMD_NVRAM_UPDATE_START_OUT_LEN != 0); | |
810 | ||
811 | rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_UPDATE_START, inbuf, sizeof(inbuf), | |
812 | NULL, 0, NULL); | |
813 | if (rc) | |
814 | goto fail; | |
815 | ||
816 | return 0; | |
817 | ||
818 | fail: | |
62776d03 | 819 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
820 | return rc; |
821 | } | |
822 | ||
823 | int efx_mcdi_nvram_read(struct efx_nic *efx, unsigned int type, | |
824 | loff_t offset, u8 *buffer, size_t length) | |
825 | { | |
826 | u8 inbuf[MC_CMD_NVRAM_READ_IN_LEN]; | |
5a27e86b | 827 | u8 outbuf[MC_CMD_NVRAM_READ_OUT_LEN(EFX_MCDI_NVRAM_LEN_MAX)]; |
afd4aea0 BH |
828 | size_t outlen; |
829 | int rc; | |
830 | ||
831 | MCDI_SET_DWORD(inbuf, NVRAM_READ_IN_TYPE, type); | |
832 | MCDI_SET_DWORD(inbuf, NVRAM_READ_IN_OFFSET, offset); | |
833 | MCDI_SET_DWORD(inbuf, NVRAM_READ_IN_LENGTH, length); | |
834 | ||
835 | rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_READ, inbuf, sizeof(inbuf), | |
836 | outbuf, sizeof(outbuf), &outlen); | |
837 | if (rc) | |
838 | goto fail; | |
839 | ||
840 | memcpy(buffer, MCDI_PTR(outbuf, NVRAM_READ_OUT_READ_BUFFER), length); | |
841 | return 0; | |
842 | ||
843 | fail: | |
62776d03 | 844 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
845 | return rc; |
846 | } | |
847 | ||
848 | int efx_mcdi_nvram_write(struct efx_nic *efx, unsigned int type, | |
849 | loff_t offset, const u8 *buffer, size_t length) | |
850 | { | |
5a27e86b | 851 | u8 inbuf[MC_CMD_NVRAM_WRITE_IN_LEN(EFX_MCDI_NVRAM_LEN_MAX)]; |
afd4aea0 BH |
852 | int rc; |
853 | ||
854 | MCDI_SET_DWORD(inbuf, NVRAM_WRITE_IN_TYPE, type); | |
855 | MCDI_SET_DWORD(inbuf, NVRAM_WRITE_IN_OFFSET, offset); | |
856 | MCDI_SET_DWORD(inbuf, NVRAM_WRITE_IN_LENGTH, length); | |
857 | memcpy(MCDI_PTR(inbuf, NVRAM_WRITE_IN_WRITE_BUFFER), buffer, length); | |
858 | ||
859 | BUILD_BUG_ON(MC_CMD_NVRAM_WRITE_OUT_LEN != 0); | |
860 | ||
5a27e86b BH |
861 | rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_WRITE, inbuf, |
862 | ALIGN(MC_CMD_NVRAM_WRITE_IN_LEN(length), 4), | |
afd4aea0 BH |
863 | NULL, 0, NULL); |
864 | if (rc) | |
865 | goto fail; | |
866 | ||
867 | return 0; | |
868 | ||
869 | fail: | |
62776d03 | 870 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
871 | return rc; |
872 | } | |
873 | ||
874 | int efx_mcdi_nvram_erase(struct efx_nic *efx, unsigned int type, | |
875 | loff_t offset, size_t length) | |
876 | { | |
877 | u8 inbuf[MC_CMD_NVRAM_ERASE_IN_LEN]; | |
878 | int rc; | |
879 | ||
880 | MCDI_SET_DWORD(inbuf, NVRAM_ERASE_IN_TYPE, type); | |
881 | MCDI_SET_DWORD(inbuf, NVRAM_ERASE_IN_OFFSET, offset); | |
882 | MCDI_SET_DWORD(inbuf, NVRAM_ERASE_IN_LENGTH, length); | |
883 | ||
884 | BUILD_BUG_ON(MC_CMD_NVRAM_ERASE_OUT_LEN != 0); | |
885 | ||
886 | rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_ERASE, inbuf, sizeof(inbuf), | |
887 | NULL, 0, NULL); | |
888 | if (rc) | |
889 | goto fail; | |
890 | ||
891 | return 0; | |
892 | ||
893 | fail: | |
62776d03 | 894 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
895 | return rc; |
896 | } | |
897 | ||
898 | int efx_mcdi_nvram_update_finish(struct efx_nic *efx, unsigned int type) | |
899 | { | |
900 | u8 inbuf[MC_CMD_NVRAM_UPDATE_FINISH_IN_LEN]; | |
901 | int rc; | |
902 | ||
903 | MCDI_SET_DWORD(inbuf, NVRAM_UPDATE_FINISH_IN_TYPE, type); | |
904 | ||
905 | BUILD_BUG_ON(MC_CMD_NVRAM_UPDATE_FINISH_OUT_LEN != 0); | |
906 | ||
907 | rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_UPDATE_FINISH, inbuf, sizeof(inbuf), | |
908 | NULL, 0, NULL); | |
909 | if (rc) | |
910 | goto fail; | |
911 | ||
912 | return 0; | |
913 | ||
914 | fail: | |
62776d03 | 915 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
916 | return rc; |
917 | } | |
918 | ||
2e803407 BH |
919 | static int efx_mcdi_nvram_test(struct efx_nic *efx, unsigned int type) |
920 | { | |
921 | u8 inbuf[MC_CMD_NVRAM_TEST_IN_LEN]; | |
922 | u8 outbuf[MC_CMD_NVRAM_TEST_OUT_LEN]; | |
923 | int rc; | |
924 | ||
925 | MCDI_SET_DWORD(inbuf, NVRAM_TEST_IN_TYPE, type); | |
926 | ||
927 | rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_TEST, inbuf, sizeof(inbuf), | |
928 | outbuf, sizeof(outbuf), NULL); | |
929 | if (rc) | |
930 | return rc; | |
931 | ||
932 | switch (MCDI_DWORD(outbuf, NVRAM_TEST_OUT_RESULT)) { | |
933 | case MC_CMD_NVRAM_TEST_PASS: | |
934 | case MC_CMD_NVRAM_TEST_NOTSUPP: | |
935 | return 0; | |
936 | default: | |
937 | return -EIO; | |
938 | } | |
939 | } | |
940 | ||
941 | int efx_mcdi_nvram_test_all(struct efx_nic *efx) | |
942 | { | |
943 | u32 nvram_types; | |
944 | unsigned int type; | |
945 | int rc; | |
946 | ||
947 | rc = efx_mcdi_nvram_types(efx, &nvram_types); | |
948 | if (rc) | |
b548a988 | 949 | goto fail1; |
2e803407 BH |
950 | |
951 | type = 0; | |
952 | while (nvram_types != 0) { | |
953 | if (nvram_types & 1) { | |
954 | rc = efx_mcdi_nvram_test(efx, type); | |
955 | if (rc) | |
b548a988 | 956 | goto fail2; |
2e803407 BH |
957 | } |
958 | type++; | |
959 | nvram_types >>= 1; | |
960 | } | |
961 | ||
962 | return 0; | |
b548a988 BH |
963 | |
964 | fail2: | |
62776d03 BH |
965 | netif_err(efx, hw, efx->net_dev, "%s: failed type=%u\n", |
966 | __func__, type); | |
b548a988 | 967 | fail1: |
62776d03 | 968 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
b548a988 | 969 | return rc; |
2e803407 BH |
970 | } |
971 | ||
8b2103ad | 972 | static int efx_mcdi_read_assertion(struct efx_nic *efx) |
afd4aea0 | 973 | { |
8b2103ad SH |
974 | u8 inbuf[MC_CMD_GET_ASSERTS_IN_LEN]; |
975 | u8 outbuf[MC_CMD_GET_ASSERTS_OUT_LEN]; | |
afd4aea0 BH |
976 | unsigned int flags, index, ofst; |
977 | const char *reason; | |
978 | size_t outlen; | |
979 | int retry; | |
980 | int rc; | |
981 | ||
8b2103ad SH |
982 | /* Attempt to read any stored assertion state before we reboot |
983 | * the mcfw out of the assertion handler. Retry twice, once | |
afd4aea0 BH |
984 | * because a boot-time assertion might cause this command to fail |
985 | * with EINTR. And once again because GET_ASSERTS can race with | |
986 | * MC_CMD_REBOOT running on the other port. */ | |
987 | retry = 2; | |
988 | do { | |
8b2103ad | 989 | MCDI_SET_DWORD(inbuf, GET_ASSERTS_IN_CLEAR, 1); |
afd4aea0 | 990 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_ASSERTS, |
8b2103ad SH |
991 | inbuf, MC_CMD_GET_ASSERTS_IN_LEN, |
992 | outbuf, sizeof(outbuf), &outlen); | |
afd4aea0 BH |
993 | } while ((rc == -EINTR || rc == -EIO) && retry-- > 0); |
994 | ||
995 | if (rc) | |
996 | return rc; | |
997 | if (outlen < MC_CMD_GET_ASSERTS_OUT_LEN) | |
00bbb4a5 | 998 | return -EIO; |
afd4aea0 | 999 | |
8b2103ad SH |
1000 | /* Print out any recorded assertion state */ |
1001 | flags = MCDI_DWORD(outbuf, GET_ASSERTS_OUT_GLOBAL_FLAGS); | |
afd4aea0 BH |
1002 | if (flags == MC_CMD_GET_ASSERTS_FLAGS_NO_FAILS) |
1003 | return 0; | |
1004 | ||
afd4aea0 BH |
1005 | reason = (flags == MC_CMD_GET_ASSERTS_FLAGS_SYS_FAIL) |
1006 | ? "system-level assertion" | |
1007 | : (flags == MC_CMD_GET_ASSERTS_FLAGS_THR_FAIL) | |
1008 | ? "thread-level assertion" | |
1009 | : (flags == MC_CMD_GET_ASSERTS_FLAGS_WDOG_FIRED) | |
1010 | ? "watchdog reset" | |
1011 | : "unknown assertion"; | |
62776d03 BH |
1012 | netif_err(efx, hw, efx->net_dev, |
1013 | "MCPU %s at PC = 0x%.8x in thread 0x%.8x\n", reason, | |
1014 | MCDI_DWORD(outbuf, GET_ASSERTS_OUT_SAVED_PC_OFFS), | |
1015 | MCDI_DWORD(outbuf, GET_ASSERTS_OUT_THREAD_OFFS)); | |
afd4aea0 BH |
1016 | |
1017 | /* Print out the registers */ | |
1018 | ofst = MC_CMD_GET_ASSERTS_OUT_GP_REGS_OFFS_OFST; | |
1019 | for (index = 1; index < 32; index++) { | |
62776d03 | 1020 | netif_err(efx, hw, efx->net_dev, "R%.2d (?): 0x%.8x\n", index, |
8b2103ad | 1021 | MCDI_DWORD2(outbuf, ofst)); |
afd4aea0 BH |
1022 | ofst += sizeof(efx_dword_t); |
1023 | } | |
1024 | ||
1025 | return 0; | |
1026 | } | |
1027 | ||
8b2103ad SH |
1028 | static void efx_mcdi_exit_assertion(struct efx_nic *efx) |
1029 | { | |
1030 | u8 inbuf[MC_CMD_REBOOT_IN_LEN]; | |
1031 | ||
1032 | /* Atomically reboot the mcfw out of the assertion handler */ | |
1033 | BUILD_BUG_ON(MC_CMD_REBOOT_OUT_LEN != 0); | |
1034 | MCDI_SET_DWORD(inbuf, REBOOT_IN_FLAGS, | |
1035 | MC_CMD_REBOOT_FLAGS_AFTER_ASSERTION); | |
1036 | efx_mcdi_rpc(efx, MC_CMD_REBOOT, inbuf, MC_CMD_REBOOT_IN_LEN, | |
1037 | NULL, 0, NULL); | |
1038 | } | |
1039 | ||
1040 | int efx_mcdi_handle_assertion(struct efx_nic *efx) | |
1041 | { | |
1042 | int rc; | |
1043 | ||
1044 | rc = efx_mcdi_read_assertion(efx); | |
1045 | if (rc) | |
1046 | return rc; | |
1047 | ||
1048 | efx_mcdi_exit_assertion(efx); | |
1049 | ||
1050 | return 0; | |
1051 | } | |
1052 | ||
afd4aea0 BH |
1053 | void efx_mcdi_set_id_led(struct efx_nic *efx, enum efx_led_mode mode) |
1054 | { | |
1055 | u8 inbuf[MC_CMD_SET_ID_LED_IN_LEN]; | |
1056 | int rc; | |
1057 | ||
1058 | BUILD_BUG_ON(EFX_LED_OFF != MC_CMD_LED_OFF); | |
1059 | BUILD_BUG_ON(EFX_LED_ON != MC_CMD_LED_ON); | |
1060 | BUILD_BUG_ON(EFX_LED_DEFAULT != MC_CMD_LED_DEFAULT); | |
1061 | ||
1062 | BUILD_BUG_ON(MC_CMD_SET_ID_LED_OUT_LEN != 0); | |
1063 | ||
1064 | MCDI_SET_DWORD(inbuf, SET_ID_LED_IN_STATE, mode); | |
1065 | ||
1066 | rc = efx_mcdi_rpc(efx, MC_CMD_SET_ID_LED, inbuf, sizeof(inbuf), | |
1067 | NULL, 0, NULL); | |
1068 | if (rc) | |
62776d03 BH |
1069 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", |
1070 | __func__, rc); | |
afd4aea0 BH |
1071 | } |
1072 | ||
1073 | int efx_mcdi_reset_port(struct efx_nic *efx) | |
1074 | { | |
1075 | int rc = efx_mcdi_rpc(efx, MC_CMD_PORT_RESET, NULL, 0, NULL, 0, NULL); | |
1076 | if (rc) | |
62776d03 BH |
1077 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", |
1078 | __func__, rc); | |
afd4aea0 BH |
1079 | return rc; |
1080 | } | |
1081 | ||
1082 | int efx_mcdi_reset_mc(struct efx_nic *efx) | |
1083 | { | |
1084 | u8 inbuf[MC_CMD_REBOOT_IN_LEN]; | |
1085 | int rc; | |
1086 | ||
1087 | BUILD_BUG_ON(MC_CMD_REBOOT_OUT_LEN != 0); | |
1088 | MCDI_SET_DWORD(inbuf, REBOOT_IN_FLAGS, 0); | |
1089 | rc = efx_mcdi_rpc(efx, MC_CMD_REBOOT, inbuf, sizeof(inbuf), | |
1090 | NULL, 0, NULL); | |
1091 | /* White is black, and up is down */ | |
1092 | if (rc == -EIO) | |
1093 | return 0; | |
1094 | if (rc == 0) | |
1095 | rc = -EIO; | |
62776d03 | 1096 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
1097 | return rc; |
1098 | } | |
1099 | ||
d215697f | 1100 | static int efx_mcdi_wol_filter_set(struct efx_nic *efx, u32 type, |
1101 | const u8 *mac, int *id_out) | |
afd4aea0 BH |
1102 | { |
1103 | u8 inbuf[MC_CMD_WOL_FILTER_SET_IN_LEN]; | |
1104 | u8 outbuf[MC_CMD_WOL_FILTER_SET_OUT_LEN]; | |
1105 | size_t outlen; | |
1106 | int rc; | |
1107 | ||
1108 | MCDI_SET_DWORD(inbuf, WOL_FILTER_SET_IN_WOL_TYPE, type); | |
1109 | MCDI_SET_DWORD(inbuf, WOL_FILTER_SET_IN_FILTER_MODE, | |
1110 | MC_CMD_FILTER_MODE_SIMPLE); | |
1111 | memcpy(MCDI_PTR(inbuf, WOL_FILTER_SET_IN_MAGIC_MAC), mac, ETH_ALEN); | |
1112 | ||
1113 | rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_SET, inbuf, sizeof(inbuf), | |
1114 | outbuf, sizeof(outbuf), &outlen); | |
1115 | if (rc) | |
1116 | goto fail; | |
1117 | ||
1118 | if (outlen < MC_CMD_WOL_FILTER_SET_OUT_LEN) { | |
00bbb4a5 | 1119 | rc = -EIO; |
afd4aea0 BH |
1120 | goto fail; |
1121 | } | |
1122 | ||
1123 | *id_out = (int)MCDI_DWORD(outbuf, WOL_FILTER_SET_OUT_FILTER_ID); | |
1124 | ||
1125 | return 0; | |
1126 | ||
1127 | fail: | |
1128 | *id_out = -1; | |
62776d03 | 1129 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
1130 | return rc; |
1131 | ||
1132 | } | |
1133 | ||
1134 | ||
1135 | int | |
1136 | efx_mcdi_wol_filter_set_magic(struct efx_nic *efx, const u8 *mac, int *id_out) | |
1137 | { | |
1138 | return efx_mcdi_wol_filter_set(efx, MC_CMD_WOL_TYPE_MAGIC, mac, id_out); | |
1139 | } | |
1140 | ||
1141 | ||
1142 | int efx_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out) | |
1143 | { | |
1144 | u8 outbuf[MC_CMD_WOL_FILTER_GET_OUT_LEN]; | |
1145 | size_t outlen; | |
1146 | int rc; | |
1147 | ||
1148 | rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_GET, NULL, 0, | |
1149 | outbuf, sizeof(outbuf), &outlen); | |
1150 | if (rc) | |
1151 | goto fail; | |
1152 | ||
1153 | if (outlen < MC_CMD_WOL_FILTER_GET_OUT_LEN) { | |
00bbb4a5 | 1154 | rc = -EIO; |
afd4aea0 BH |
1155 | goto fail; |
1156 | } | |
1157 | ||
1158 | *id_out = (int)MCDI_DWORD(outbuf, WOL_FILTER_GET_OUT_FILTER_ID); | |
1159 | ||
1160 | return 0; | |
1161 | ||
1162 | fail: | |
1163 | *id_out = -1; | |
62776d03 | 1164 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
1165 | return rc; |
1166 | } | |
1167 | ||
1168 | ||
1169 | int efx_mcdi_wol_filter_remove(struct efx_nic *efx, int id) | |
1170 | { | |
1171 | u8 inbuf[MC_CMD_WOL_FILTER_REMOVE_IN_LEN]; | |
1172 | int rc; | |
1173 | ||
1174 | MCDI_SET_DWORD(inbuf, WOL_FILTER_REMOVE_IN_FILTER_ID, (u32)id); | |
1175 | ||
1176 | rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_REMOVE, inbuf, sizeof(inbuf), | |
1177 | NULL, 0, NULL); | |
1178 | if (rc) | |
1179 | goto fail; | |
1180 | ||
1181 | return 0; | |
1182 | ||
1183 | fail: | |
62776d03 | 1184 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
1185 | return rc; |
1186 | } | |
1187 | ||
1188 | ||
1189 | int efx_mcdi_wol_filter_reset(struct efx_nic *efx) | |
1190 | { | |
1191 | int rc; | |
1192 | ||
1193 | rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_RESET, NULL, 0, NULL, 0, NULL); | |
1194 | if (rc) | |
1195 | goto fail; | |
1196 | ||
1197 | return 0; | |
1198 | ||
1199 | fail: | |
62776d03 | 1200 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
1201 | return rc; |
1202 | } | |
1203 |