1 /* SPDX-License-Identifier: BSD-3-Clause
3 * Copyright (c) 2008-2018 Solarflare Communications Inc.
13 * There are three versions of the MCDI interface:
14 * - MCDIv0: Siena BootROM. Transport uses MCDIv1 headers.
15 * - MCDIv1: Siena firmware and Huntington BootROM.
16 * - MCDIv2: EF10 firmware (Huntington/Medford) and Medford BootROM.
17 * Transport uses MCDIv2 headers.
19 * MCDIv2 Header NOT_EPOCH flag
20 * ----------------------------
21 * A new epoch begins at initial startup or after an MC reboot, and defines when
22 * the MC should reject stale MCDI requests.
24 * The first MCDI request sent by the host should contain NOT_EPOCH=0, and all
25 * subsequent requests (until the next MC reboot) should contain NOT_EPOCH=1.
27 * After rebooting the MC will fail all requests with NOT_EPOCH=1 by writing a
28 * response with ERROR=1 and DATALEN=0 until a request is seen with NOT_EPOCH=0.
35 static const efx_mcdi_ops_t __efx_mcdi_siena_ops = {
36 siena_mcdi_init, /* emco_init */
37 siena_mcdi_send_request, /* emco_send_request */
38 siena_mcdi_poll_reboot, /* emco_poll_reboot */
39 siena_mcdi_poll_response, /* emco_poll_response */
40 siena_mcdi_read_response, /* emco_read_response */
41 siena_mcdi_fini, /* emco_fini */
42 siena_mcdi_feature_supported, /* emco_feature_supported */
43 siena_mcdi_get_timeout, /* emco_get_timeout */
46 #endif /* EFSYS_OPT_SIENA */
48 #if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2
50 static const efx_mcdi_ops_t __efx_mcdi_ef10_ops = {
51 ef10_mcdi_init, /* emco_init */
52 ef10_mcdi_send_request, /* emco_send_request */
53 ef10_mcdi_poll_reboot, /* emco_poll_reboot */
54 ef10_mcdi_poll_response, /* emco_poll_response */
55 ef10_mcdi_read_response, /* emco_read_response */
56 ef10_mcdi_fini, /* emco_fini */
57 ef10_mcdi_feature_supported, /* emco_feature_supported */
58 ef10_mcdi_get_timeout, /* emco_get_timeout */
61 #endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2 */
65 __checkReturn efx_rc_t
68 __in const efx_mcdi_transport_t *emtp)
70 const efx_mcdi_ops_t *emcop;
73 EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
74 EFSYS_ASSERT3U(enp->en_mod_flags, ==, 0);
76 switch (enp->en_family) {
78 case EFX_FAMILY_SIENA:
79 emcop = &__efx_mcdi_siena_ops;
81 #endif /* EFSYS_OPT_SIENA */
83 #if EFSYS_OPT_HUNTINGTON
84 case EFX_FAMILY_HUNTINGTON:
85 emcop = &__efx_mcdi_ef10_ops;
87 #endif /* EFSYS_OPT_HUNTINGTON */
90 case EFX_FAMILY_MEDFORD:
91 emcop = &__efx_mcdi_ef10_ops;
93 #endif /* EFSYS_OPT_MEDFORD */
95 #if EFSYS_OPT_MEDFORD2
96 case EFX_FAMILY_MEDFORD2:
97 emcop = &__efx_mcdi_ef10_ops;
99 #endif /* EFSYS_OPT_MEDFORD2 */
107 if (enp->en_features & EFX_FEATURE_MCDI_DMA) {
108 /* MCDI requires a DMA buffer in host memory */
109 if ((emtp == NULL) || (emtp->emt_dma_mem) == NULL) {
114 enp->en_mcdi.em_emtp = emtp;
116 if (emcop != NULL && emcop->emco_init != NULL) {
117 if ((rc = emcop->emco_init(enp, emtp)) != 0)
121 enp->en_mcdi.em_emcop = emcop;
122 enp->en_mod_flags |= EFX_MOD_MCDI;
131 EFSYS_PROBE1(fail1, efx_rc_t, rc);
133 enp->en_mcdi.em_emcop = NULL;
134 enp->en_mcdi.em_emtp = NULL;
135 enp->en_mod_flags &= ~EFX_MOD_MCDI;
144 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
145 const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
147 EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
148 EFSYS_ASSERT3U(enp->en_mod_flags, ==, EFX_MOD_MCDI);
150 if (emcop != NULL && emcop->emco_fini != NULL)
151 emcop->emco_fini(enp);
154 emip->emi_aborted = 0;
156 enp->en_mcdi.em_emcop = NULL;
157 enp->en_mod_flags &= ~EFX_MOD_MCDI;
164 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
165 efsys_lock_state_t state;
167 /* Start a new epoch (allow fresh MCDI requests to succeed) */
168 EFSYS_LOCK(enp->en_eslp, state);
169 emip->emi_new_epoch = B_TRUE;
170 EFSYS_UNLOCK(enp->en_eslp, state);
174 efx_mcdi_send_request(
181 const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
183 emcop->emco_send_request(enp, hdrp, hdr_len, sdup, sdu_len);
187 efx_mcdi_poll_reboot(
190 const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
193 rc = emcop->emco_poll_reboot(enp);
198 efx_mcdi_poll_response(
201 const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
204 available = emcop->emco_poll_response(enp);
209 efx_mcdi_read_response(
215 const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
217 emcop->emco_read_response(enp, bufferp, offset, length);
221 efx_mcdi_request_start(
223 __in efx_mcdi_req_t *emrp,
224 __in boolean_t ev_cpl)
226 #if EFSYS_OPT_MCDI_LOGGING
227 const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
229 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
232 unsigned int max_version;
236 efsys_lock_state_t state;
238 EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
239 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_MCDI);
240 EFSYS_ASSERT3U(enp->en_features, &, EFX_FEATURE_MCDI);
243 * efx_mcdi_request_start() is naturally serialised against both
244 * efx_mcdi_request_poll() and efx_mcdi_ev_cpl()/efx_mcdi_ev_death(),
245 * by virtue of there only being one outstanding MCDI request.
246 * Unfortunately, upper layers may also call efx_mcdi_request_abort()
247 * at any time, to timeout a pending mcdi request, That request may
248 * then subsequently complete, meaning efx_mcdi_ev_cpl() or
249 * efx_mcdi_ev_death() may end up running in parallel with
250 * efx_mcdi_request_start(). This race is handled by ensuring that
251 * %emi_pending_req, %emi_ev_cpl and %emi_seq are protected by the
254 EFSYS_LOCK(enp->en_eslp, state);
255 EFSYS_ASSERT(emip->emi_pending_req == NULL);
256 emip->emi_pending_req = emrp;
257 emip->emi_ev_cpl = ev_cpl;
258 emip->emi_poll_cnt = 0;
259 seq = emip->emi_seq++ & EFX_MASK32(MCDI_HEADER_SEQ);
260 new_epoch = emip->emi_new_epoch;
261 max_version = emip->emi_max_version;
262 EFSYS_UNLOCK(enp->en_eslp, state);
266 xflags |= MCDI_HEADER_XFLAGS_EVREQ;
269 * Huntington firmware supports MCDIv2, but the Huntington BootROM only
270 * supports MCDIv1. Use MCDIv1 headers for MCDIv1 commands where
271 * possible to support this.
273 if ((max_version >= 2) &&
274 ((emrp->emr_cmd > MC_CMD_CMD_SPACE_ESCAPE_7) ||
275 (emrp->emr_in_length > MCDI_CTL_SDU_LEN_MAX_V1) ||
276 (emrp->emr_out_length > MCDI_CTL_SDU_LEN_MAX_V1))) {
277 /* Construct MCDI v2 header */
278 hdr_len = sizeof (hdr);
279 EFX_POPULATE_DWORD_8(hdr[0],
280 MCDI_HEADER_CODE, MC_CMD_V2_EXTN,
281 MCDI_HEADER_RESYNC, 1,
282 MCDI_HEADER_DATALEN, 0,
283 MCDI_HEADER_SEQ, seq,
284 MCDI_HEADER_NOT_EPOCH, new_epoch ? 0 : 1,
285 MCDI_HEADER_ERROR, 0,
286 MCDI_HEADER_RESPONSE, 0,
287 MCDI_HEADER_XFLAGS, xflags);
289 EFX_POPULATE_DWORD_2(hdr[1],
290 MC_CMD_V2_EXTN_IN_EXTENDED_CMD, emrp->emr_cmd,
291 MC_CMD_V2_EXTN_IN_ACTUAL_LEN, emrp->emr_in_length);
293 /* Construct MCDI v1 header */
294 hdr_len = sizeof (hdr[0]);
295 EFX_POPULATE_DWORD_8(hdr[0],
296 MCDI_HEADER_CODE, emrp->emr_cmd,
297 MCDI_HEADER_RESYNC, 1,
298 MCDI_HEADER_DATALEN, emrp->emr_in_length,
299 MCDI_HEADER_SEQ, seq,
300 MCDI_HEADER_NOT_EPOCH, new_epoch ? 0 : 1,
301 MCDI_HEADER_ERROR, 0,
302 MCDI_HEADER_RESPONSE, 0,
303 MCDI_HEADER_XFLAGS, xflags);
306 #if EFSYS_OPT_MCDI_LOGGING
307 if (emtp->emt_logger != NULL) {
308 emtp->emt_logger(emtp->emt_context, EFX_LOG_MCDI_REQUEST,
310 emrp->emr_in_buf, emrp->emr_in_length);
312 #endif /* EFSYS_OPT_MCDI_LOGGING */
314 efx_mcdi_send_request(enp, &hdr[0], hdr_len,
315 emrp->emr_in_buf, emrp->emr_in_length);
320 efx_mcdi_read_response_header(
322 __inout efx_mcdi_req_t *emrp)
324 #if EFSYS_OPT_MCDI_LOGGING
325 const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
326 #endif /* EFSYS_OPT_MCDI_LOGGING */
327 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
329 unsigned int hdr_len;
330 unsigned int data_len;
336 EFSYS_ASSERT(emrp != NULL);
338 efx_mcdi_read_response(enp, &hdr[0], 0, sizeof (hdr[0]));
339 hdr_len = sizeof (hdr[0]);
341 cmd = EFX_DWORD_FIELD(hdr[0], MCDI_HEADER_CODE);
342 seq = EFX_DWORD_FIELD(hdr[0], MCDI_HEADER_SEQ);
343 error = EFX_DWORD_FIELD(hdr[0], MCDI_HEADER_ERROR);
345 if (cmd != MC_CMD_V2_EXTN) {
346 data_len = EFX_DWORD_FIELD(hdr[0], MCDI_HEADER_DATALEN);
348 efx_mcdi_read_response(enp, &hdr[1], hdr_len, sizeof (hdr[1]));
349 hdr_len += sizeof (hdr[1]);
351 cmd = EFX_DWORD_FIELD(hdr[1], MC_CMD_V2_EXTN_IN_EXTENDED_CMD);
353 EFX_DWORD_FIELD(hdr[1], MC_CMD_V2_EXTN_IN_ACTUAL_LEN);
356 if (error && (data_len == 0)) {
357 /* The MC has rebooted since the request was sent. */
358 EFSYS_SPIN(EFX_MCDI_STATUS_SLEEP_US);
359 efx_mcdi_poll_reboot(enp);
363 if ((cmd != emrp->emr_cmd) ||
364 (seq != ((emip->emi_seq - 1) & EFX_MASK32(MCDI_HEADER_SEQ)))) {
365 /* Response is for a different request */
371 unsigned int err_len = MIN(data_len, sizeof (err));
372 int err_code = MC_CMD_ERR_EPROTO;
375 /* Read error code (and arg num for MCDI v2 commands) */
376 efx_mcdi_read_response(enp, &err, hdr_len, err_len);
378 if (err_len >= (MC_CMD_ERR_CODE_OFST + sizeof (efx_dword_t)))
379 err_code = EFX_DWORD_FIELD(err[0], EFX_DWORD_0);
381 if (err_len >= (MC_CMD_ERR_ARG_OFST + sizeof (efx_dword_t)))
382 err_arg = EFX_DWORD_FIELD(err[1], EFX_DWORD_0);
384 emrp->emr_err_code = err_code;
385 emrp->emr_err_arg = err_arg;
387 #if EFSYS_OPT_MCDI_PROXY_AUTH
388 if ((err_code == MC_CMD_ERR_PROXY_PENDING) &&
389 (err_len == sizeof (err))) {
391 * The MCDI request would normally fail with EPERM, but
392 * firmware has forwarded it to an authorization agent
393 * attached to a privileged PF.
395 * Save the authorization request handle. The client
396 * must wait for a PROXY_RESPONSE event, or timeout.
398 emrp->emr_proxy_handle = err_arg;
400 #endif /* EFSYS_OPT_MCDI_PROXY_AUTH */
402 #if EFSYS_OPT_MCDI_LOGGING
403 if (emtp->emt_logger != NULL) {
404 emtp->emt_logger(emtp->emt_context,
405 EFX_LOG_MCDI_RESPONSE,
409 #endif /* EFSYS_OPT_MCDI_LOGGING */
411 if (!emrp->emr_quiet) {
412 EFSYS_PROBE3(mcdi_err_arg, int, emrp->emr_cmd,
413 int, err_code, int, err_arg);
416 rc = efx_mcdi_request_errcode(err_code);
421 emrp->emr_out_length_used = data_len;
422 #if EFSYS_OPT_MCDI_PROXY_AUTH
423 emrp->emr_proxy_handle = 0;
424 #endif /* EFSYS_OPT_MCDI_PROXY_AUTH */
431 emrp->emr_out_length_used = 0;
435 efx_mcdi_finish_response(
437 __in efx_mcdi_req_t *emrp)
439 #if EFSYS_OPT_MCDI_LOGGING
440 const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
441 #endif /* EFSYS_OPT_MCDI_LOGGING */
443 unsigned int hdr_len;
446 if (emrp->emr_out_buf == NULL)
449 /* Read the command header to detect MCDI response format */
450 hdr_len = sizeof (hdr[0]);
451 efx_mcdi_read_response(enp, &hdr[0], 0, hdr_len);
452 if (EFX_DWORD_FIELD(hdr[0], MCDI_HEADER_CODE) == MC_CMD_V2_EXTN) {
454 * Read the actual payload length. The length given in the event
455 * is only correct for responses with the V1 format.
457 efx_mcdi_read_response(enp, &hdr[1], hdr_len, sizeof (hdr[1]));
458 hdr_len += sizeof (hdr[1]);
460 emrp->emr_out_length_used = EFX_DWORD_FIELD(hdr[1],
461 MC_CMD_V2_EXTN_IN_ACTUAL_LEN);
464 /* Copy payload out into caller supplied buffer */
465 bytes = MIN(emrp->emr_out_length_used, emrp->emr_out_length);
466 efx_mcdi_read_response(enp, emrp->emr_out_buf, hdr_len, bytes);
468 #if EFSYS_OPT_MCDI_LOGGING
469 if (emtp->emt_logger != NULL) {
470 emtp->emt_logger(emtp->emt_context,
471 EFX_LOG_MCDI_RESPONSE,
473 emrp->emr_out_buf, bytes);
475 #endif /* EFSYS_OPT_MCDI_LOGGING */
479 __checkReturn boolean_t
480 efx_mcdi_request_poll(
483 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
484 efx_mcdi_req_t *emrp;
485 efsys_lock_state_t state;
488 EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
489 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_MCDI);
490 EFSYS_ASSERT3U(enp->en_features, &, EFX_FEATURE_MCDI);
492 /* Serialise against post-watchdog efx_mcdi_ev* */
493 EFSYS_LOCK(enp->en_eslp, state);
495 EFSYS_ASSERT(emip->emi_pending_req != NULL);
496 EFSYS_ASSERT(!emip->emi_ev_cpl);
497 emrp = emip->emi_pending_req;
499 /* Check for reboot atomically w.r.t efx_mcdi_request_start */
500 if (emip->emi_poll_cnt++ == 0) {
501 if ((rc = efx_mcdi_poll_reboot(enp)) != 0) {
502 emip->emi_pending_req = NULL;
503 EFSYS_UNLOCK(enp->en_eslp, state);
505 /* Reboot/Assertion */
506 if (rc == EIO || rc == EINTR)
507 efx_mcdi_raise_exception(enp, emrp, rc);
513 /* Check if a response is available */
514 if (efx_mcdi_poll_response(enp) == B_FALSE) {
515 EFSYS_UNLOCK(enp->en_eslp, state);
519 /* Read the response header */
520 efx_mcdi_read_response_header(enp, emrp);
522 /* Request complete */
523 emip->emi_pending_req = NULL;
525 /* Ensure stale MCDI requests fail after an MC reboot. */
526 emip->emi_new_epoch = B_FALSE;
528 EFSYS_UNLOCK(enp->en_eslp, state);
530 if ((rc = emrp->emr_rc) != 0)
533 efx_mcdi_finish_response(enp, emrp);
537 if (!emrp->emr_quiet)
540 if (!emrp->emr_quiet)
541 EFSYS_PROBE1(fail1, efx_rc_t, rc);
546 __checkReturn boolean_t
547 efx_mcdi_request_abort(
550 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
551 efx_mcdi_req_t *emrp;
553 efsys_lock_state_t state;
555 EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
556 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_MCDI);
557 EFSYS_ASSERT3U(enp->en_features, &, EFX_FEATURE_MCDI);
560 * efx_mcdi_ev_* may have already completed this event, and be
561 * spinning/blocked on the upper layer lock. So it *is* legitimate
562 * to for emi_pending_req to be NULL. If there is a pending event
563 * completed request, then provide a "credit" to allow
564 * efx_mcdi_ev_cpl() to accept a single spurious completion.
566 EFSYS_LOCK(enp->en_eslp, state);
567 emrp = emip->emi_pending_req;
568 aborted = (emrp != NULL);
570 emip->emi_pending_req = NULL;
572 /* Error the request */
573 emrp->emr_out_length_used = 0;
574 emrp->emr_rc = ETIMEDOUT;
576 /* Provide a credit for seqno/emr_pending_req mismatches */
577 if (emip->emi_ev_cpl)
581 * The upper layer has called us, so we don't
582 * need to complete the request.
585 EFSYS_UNLOCK(enp->en_eslp, state);
591 efx_mcdi_get_timeout(
593 __in efx_mcdi_req_t *emrp,
594 __out uint32_t *timeoutp)
596 const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
598 emcop->emco_get_timeout(enp, emrp, timeoutp);
601 __checkReturn efx_rc_t
602 efx_mcdi_request_errcode(
603 __in unsigned int err)
608 case MC_CMD_ERR_EPERM:
610 case MC_CMD_ERR_ENOENT:
612 case MC_CMD_ERR_EINTR:
614 case MC_CMD_ERR_EACCES:
616 case MC_CMD_ERR_EBUSY:
618 case MC_CMD_ERR_EINVAL:
620 case MC_CMD_ERR_EDEADLK:
622 case MC_CMD_ERR_ENOSYS:
624 case MC_CMD_ERR_ETIME:
626 case MC_CMD_ERR_ENOTSUP:
628 case MC_CMD_ERR_EALREADY:
632 case MC_CMD_ERR_EEXIST:
634 #ifdef MC_CMD_ERR_EAGAIN
635 case MC_CMD_ERR_EAGAIN:
638 #ifdef MC_CMD_ERR_ENOSPC
639 case MC_CMD_ERR_ENOSPC:
642 case MC_CMD_ERR_ERANGE:
645 case MC_CMD_ERR_ALLOC_FAIL:
647 case MC_CMD_ERR_NO_VADAPTOR:
649 case MC_CMD_ERR_NO_EVB_PORT:
651 case MC_CMD_ERR_NO_VSWITCH:
653 case MC_CMD_ERR_VLAN_LIMIT:
655 case MC_CMD_ERR_BAD_PCI_FUNC:
657 case MC_CMD_ERR_BAD_VLAN_MODE:
659 case MC_CMD_ERR_BAD_VSWITCH_TYPE:
661 case MC_CMD_ERR_BAD_VPORT_TYPE:
663 case MC_CMD_ERR_MAC_EXIST:
666 case MC_CMD_ERR_PROXY_PENDING:
670 EFSYS_PROBE1(mc_pcol_error, int, err);
676 efx_mcdi_raise_exception(
678 __in_opt efx_mcdi_req_t *emrp,
681 const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
682 efx_mcdi_exception_t exception;
684 /* Reboot or Assertion failure only */
685 EFSYS_ASSERT(rc == EIO || rc == EINTR);
688 * If MC_CMD_REBOOT causes a reboot (dependent on parameters),
689 * then the EIO is not worthy of an exception.
691 if (emrp != NULL && emrp->emr_cmd == MC_CMD_REBOOT && rc == EIO)
694 exception = (rc == EIO)
695 ? EFX_MCDI_EXCEPTION_MC_REBOOT
696 : EFX_MCDI_EXCEPTION_MC_BADASSERT;
698 emtp->emt_exception(emtp->emt_context, exception);
704 __inout efx_mcdi_req_t *emrp)
706 const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
708 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_MCDI);
709 EFSYS_ASSERT3U(enp->en_features, &, EFX_FEATURE_MCDI);
711 emrp->emr_quiet = B_FALSE;
712 emtp->emt_execute(emtp->emt_context, emrp);
716 efx_mcdi_execute_quiet(
718 __inout efx_mcdi_req_t *emrp)
720 const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
722 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_MCDI);
723 EFSYS_ASSERT3U(enp->en_features, &, EFX_FEATURE_MCDI);
725 emrp->emr_quiet = B_TRUE;
726 emtp->emt_execute(emtp->emt_context, emrp);
732 __in unsigned int seq,
733 __in unsigned int outlen,
736 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
737 const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
738 efx_mcdi_req_t *emrp;
739 efsys_lock_state_t state;
741 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_MCDI);
742 EFSYS_ASSERT3U(enp->en_features, &, EFX_FEATURE_MCDI);
745 * Serialise against efx_mcdi_request_poll()/efx_mcdi_request_start()
746 * when we're completing an aborted request.
748 EFSYS_LOCK(enp->en_eslp, state);
749 if (emip->emi_pending_req == NULL || !emip->emi_ev_cpl ||
750 (seq != ((emip->emi_seq - 1) & EFX_MASK32(MCDI_HEADER_SEQ)))) {
751 EFSYS_ASSERT(emip->emi_aborted > 0);
752 if (emip->emi_aborted > 0)
754 EFSYS_UNLOCK(enp->en_eslp, state);
758 emrp = emip->emi_pending_req;
759 emip->emi_pending_req = NULL;
760 EFSYS_UNLOCK(enp->en_eslp, state);
762 if (emip->emi_max_version >= 2) {
763 /* MCDIv2 response details do not fit into an event. */
764 efx_mcdi_read_response_header(enp, emrp);
767 if (!emrp->emr_quiet) {
768 EFSYS_PROBE2(mcdi_err, int, emrp->emr_cmd,
771 emrp->emr_out_length_used = 0;
772 emrp->emr_rc = efx_mcdi_request_errcode(errcode);
774 emrp->emr_out_length_used = outlen;
778 if (emrp->emr_rc == 0)
779 efx_mcdi_finish_response(enp, emrp);
781 emtp->emt_ev_cpl(emtp->emt_context);
784 #if EFSYS_OPT_MCDI_PROXY_AUTH
786 __checkReturn efx_rc_t
787 efx_mcdi_get_proxy_handle(
789 __in efx_mcdi_req_t *emrp,
790 __out uint32_t *handlep)
794 _NOTE(ARGUNUSED(enp))
797 * Return proxy handle from MCDI request that returned with error
798 * MC_MCD_ERR_PROXY_PENDING. This handle is used to wait for a matching
799 * PROXY_RESPONSE event.
801 if ((emrp == NULL) || (handlep == NULL)) {
805 if ((emrp->emr_rc != 0) &&
806 (emrp->emr_err_code == MC_CMD_ERR_PROXY_PENDING)) {
807 *handlep = emrp->emr_proxy_handle;
816 EFSYS_PROBE1(fail1, efx_rc_t, rc);
821 efx_mcdi_ev_proxy_response(
823 __in unsigned int handle,
824 __in unsigned int status)
826 const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
830 * Handle results of an authorization request for a privileged MCDI
831 * command. If authorization was granted then we must re-issue the
832 * original MCDI request. If authorization failed or timed out,
833 * then the original MCDI request should be completed with the
834 * result code from this event.
836 rc = (status == 0) ? 0 : efx_mcdi_request_errcode(status);
838 emtp->emt_ev_proxy_response(emtp->emt_context, handle, rc);
840 #endif /* EFSYS_OPT_MCDI_PROXY_AUTH */
847 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
848 const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
849 efx_mcdi_req_t *emrp = NULL;
851 efsys_lock_state_t state;
854 * The MCDI request (if there is one) has been terminated, either
855 * by a BADASSERT or REBOOT event.
857 * If there is an outstanding event-completed MCDI operation, then we
858 * will never receive the completion event (because both MCDI
859 * completions and BADASSERT events are sent to the same evq). So
860 * complete this MCDI op.
862 * This function might run in parallel with efx_mcdi_request_poll()
863 * for poll completed mcdi requests, and also with
864 * efx_mcdi_request_start() for post-watchdog completions.
866 EFSYS_LOCK(enp->en_eslp, state);
867 emrp = emip->emi_pending_req;
868 ev_cpl = emip->emi_ev_cpl;
869 if (emrp != NULL && emip->emi_ev_cpl) {
870 emip->emi_pending_req = NULL;
872 emrp->emr_out_length_used = 0;
878 * Since we're running in parallel with a request, consume the
879 * status word before dropping the lock.
881 if (rc == EIO || rc == EINTR) {
882 EFSYS_SPIN(EFX_MCDI_STATUS_SLEEP_US);
883 (void) efx_mcdi_poll_reboot(enp);
884 emip->emi_new_epoch = B_TRUE;
887 EFSYS_UNLOCK(enp->en_eslp, state);
889 efx_mcdi_raise_exception(enp, emrp, rc);
891 if (emrp != NULL && ev_cpl)
892 emtp->emt_ev_cpl(emtp->emt_context);
895 __checkReturn efx_rc_t
898 __out_ecount_opt(4) uint16_t versionp[4],
899 __out_opt uint32_t *buildp,
900 __out_opt efx_mcdi_boot_t *statusp)
903 EFX_MCDI_DECLARE_BUF(payload,
904 MAX(MC_CMD_GET_VERSION_IN_LEN, MC_CMD_GET_BOOT_STATUS_IN_LEN),
905 MAX(MC_CMD_GET_VERSION_OUT_LEN,
906 MC_CMD_GET_BOOT_STATUS_OUT_LEN));
907 efx_word_t *ver_words;
910 efx_mcdi_boot_t status;
913 EFSYS_ASSERT3U(enp->en_features, &, EFX_FEATURE_MCDI);
915 req.emr_cmd = MC_CMD_GET_VERSION;
916 req.emr_in_buf = payload;
917 req.emr_in_length = MC_CMD_GET_VERSION_IN_LEN;
918 req.emr_out_buf = payload;
919 req.emr_out_length = MC_CMD_GET_VERSION_OUT_LEN;
921 efx_mcdi_execute(enp, &req);
923 if (req.emr_rc != 0) {
928 /* bootrom support */
929 if (req.emr_out_length_used == MC_CMD_GET_VERSION_V0_OUT_LEN) {
930 version[0] = version[1] = version[2] = version[3] = 0;
931 build = MCDI_OUT_DWORD(req, GET_VERSION_OUT_FIRMWARE);
936 if (req.emr_out_length_used < MC_CMD_GET_VERSION_OUT_LEN) {
941 ver_words = MCDI_OUT2(req, efx_word_t, GET_VERSION_OUT_VERSION);
942 version[0] = EFX_WORD_FIELD(ver_words[0], EFX_WORD_0);
943 version[1] = EFX_WORD_FIELD(ver_words[1], EFX_WORD_0);
944 version[2] = EFX_WORD_FIELD(ver_words[2], EFX_WORD_0);
945 version[3] = EFX_WORD_FIELD(ver_words[3], EFX_WORD_0);
946 build = MCDI_OUT_DWORD(req, GET_VERSION_OUT_FIRMWARE);
949 /* The bootrom doesn't understand BOOT_STATUS */
950 if (MC_FW_VERSION_IS_BOOTLOADER(build)) {
951 status = EFX_MCDI_BOOT_ROM;
955 (void) memset(payload, 0, sizeof (payload));
956 req.emr_cmd = MC_CMD_GET_BOOT_STATUS;
957 req.emr_in_buf = payload;
958 req.emr_in_length = MC_CMD_GET_BOOT_STATUS_IN_LEN;
959 req.emr_out_buf = payload;
960 req.emr_out_length = MC_CMD_GET_BOOT_STATUS_OUT_LEN;
962 efx_mcdi_execute_quiet(enp, &req);
964 if (req.emr_rc == EACCES) {
965 /* Unprivileged functions cannot access BOOT_STATUS */
966 status = EFX_MCDI_BOOT_PRIMARY;
967 version[0] = version[1] = version[2] = version[3] = 0;
972 if (req.emr_rc != 0) {
977 if (req.emr_out_length_used < MC_CMD_GET_BOOT_STATUS_OUT_LEN) {
982 if (MCDI_OUT_DWORD_FIELD(req, GET_BOOT_STATUS_OUT_FLAGS,
983 GET_BOOT_STATUS_OUT_FLAGS_PRIMARY))
984 status = EFX_MCDI_BOOT_PRIMARY;
986 status = EFX_MCDI_BOOT_SECONDARY;
989 if (versionp != NULL)
990 memcpy(versionp, version, sizeof (version));
1005 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1010 __checkReturn efx_rc_t
1011 efx_mcdi_get_capabilities(
1012 __in efx_nic_t *enp,
1013 __out_opt uint32_t *flagsp,
1014 __out_opt uint16_t *rx_dpcpu_fw_idp,
1015 __out_opt uint16_t *tx_dpcpu_fw_idp,
1016 __out_opt uint32_t *flags2p,
1017 __out_opt uint32_t *tso2ncp)
1020 EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_CAPABILITIES_IN_LEN,
1021 MC_CMD_GET_CAPABILITIES_V2_OUT_LEN);
1022 boolean_t v2_capable;
1025 req.emr_cmd = MC_CMD_GET_CAPABILITIES;
1026 req.emr_in_buf = payload;
1027 req.emr_in_length = MC_CMD_GET_CAPABILITIES_IN_LEN;
1028 req.emr_out_buf = payload;
1029 req.emr_out_length = MC_CMD_GET_CAPABILITIES_V2_OUT_LEN;
1031 efx_mcdi_execute_quiet(enp, &req);
1033 if (req.emr_rc != 0) {
1038 if (req.emr_out_length_used < MC_CMD_GET_CAPABILITIES_OUT_LEN) {
1044 *flagsp = MCDI_OUT_DWORD(req, GET_CAPABILITIES_OUT_FLAGS1);
1046 if (rx_dpcpu_fw_idp != NULL)
1047 *rx_dpcpu_fw_idp = MCDI_OUT_WORD(req,
1048 GET_CAPABILITIES_OUT_RX_DPCPU_FW_ID);
1050 if (tx_dpcpu_fw_idp != NULL)
1051 *tx_dpcpu_fw_idp = MCDI_OUT_WORD(req,
1052 GET_CAPABILITIES_OUT_TX_DPCPU_FW_ID);
1054 if (req.emr_out_length_used < MC_CMD_GET_CAPABILITIES_V2_OUT_LEN)
1055 v2_capable = B_FALSE;
1057 v2_capable = B_TRUE;
1059 if (flags2p != NULL) {
1060 *flags2p = (v2_capable) ?
1061 MCDI_OUT_DWORD(req, GET_CAPABILITIES_V2_OUT_FLAGS2) :
1065 if (tso2ncp != NULL) {
1066 *tso2ncp = (v2_capable) ?
1068 GET_CAPABILITIES_V2_OUT_TX_TSO_V2_N_CONTEXTS) :
1077 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1082 static __checkReturn efx_rc_t
1084 __in efx_nic_t *enp,
1085 __in boolean_t after_assertion)
1087 EFX_MCDI_DECLARE_BUF(payload, MC_CMD_REBOOT_IN_LEN,
1088 MC_CMD_REBOOT_OUT_LEN);
1093 * We could require the caller to have caused en_mod_flags=0 to
1094 * call this function. This doesn't help the other port though,
1095 * who's about to get the MC ripped out from underneath them.
1096 * Since they have to cope with the subsequent fallout of MCDI
1097 * failures, we should as well.
1099 EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
1101 req.emr_cmd = MC_CMD_REBOOT;
1102 req.emr_in_buf = payload;
1103 req.emr_in_length = MC_CMD_REBOOT_IN_LEN;
1104 req.emr_out_buf = payload;
1105 req.emr_out_length = MC_CMD_REBOOT_OUT_LEN;
1107 MCDI_IN_SET_DWORD(req, REBOOT_IN_FLAGS,
1108 (after_assertion ? MC_CMD_REBOOT_FLAGS_AFTER_ASSERTION : 0));
1110 efx_mcdi_execute_quiet(enp, &req);
1112 if (req.emr_rc == EACCES) {
1113 /* Unprivileged functions cannot reboot the MC. */
1117 /* A successful reboot request returns EIO. */
1118 if (req.emr_rc != 0 && req.emr_rc != EIO) {
1127 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1132 __checkReturn efx_rc_t
1134 __in efx_nic_t *enp)
1136 return (efx_mcdi_do_reboot(enp, B_FALSE));
1139 __checkReturn efx_rc_t
1140 efx_mcdi_exit_assertion_handler(
1141 __in efx_nic_t *enp)
1143 return (efx_mcdi_do_reboot(enp, B_TRUE));
1146 __checkReturn efx_rc_t
1147 efx_mcdi_read_assertion(
1148 __in efx_nic_t *enp)
1151 EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_ASSERTS_IN_LEN,
1152 MC_CMD_GET_ASSERTS_OUT_LEN);
1161 * Before we attempt to chat to the MC, we should verify that the MC
1162 * isn't in it's assertion handler, either due to a previous reboot,
1163 * or because we're reinitializing due to an eec_exception().
1165 * Use GET_ASSERTS to read any assertion state that may be present.
1166 * Retry this command twice. Once because a boot-time assertion failure
1167 * might cause the 1st MCDI request to fail. And once again because
1168 * we might race with efx_mcdi_exit_assertion_handler() running on
1169 * partner port(s) on the same NIC.
1173 (void) memset(payload, 0, sizeof (payload));
1174 req.emr_cmd = MC_CMD_GET_ASSERTS;
1175 req.emr_in_buf = payload;
1176 req.emr_in_length = MC_CMD_GET_ASSERTS_IN_LEN;
1177 req.emr_out_buf = payload;
1178 req.emr_out_length = MC_CMD_GET_ASSERTS_OUT_LEN;
1180 MCDI_IN_SET_DWORD(req, GET_ASSERTS_IN_CLEAR, 1);
1181 efx_mcdi_execute_quiet(enp, &req);
1183 } while ((req.emr_rc == EINTR || req.emr_rc == EIO) && retry-- > 0);
1185 if (req.emr_rc != 0) {
1186 if (req.emr_rc == EACCES) {
1187 /* Unprivileged functions cannot clear assertions. */
1194 if (req.emr_out_length_used < MC_CMD_GET_ASSERTS_OUT_LEN) {
1199 /* Print out any assertion state recorded */
1200 flags = MCDI_OUT_DWORD(req, GET_ASSERTS_OUT_GLOBAL_FLAGS);
1201 if (flags == MC_CMD_GET_ASSERTS_FLAGS_NO_FAILS)
1204 reason = (flags == MC_CMD_GET_ASSERTS_FLAGS_SYS_FAIL)
1205 ? "system-level assertion"
1206 : (flags == MC_CMD_GET_ASSERTS_FLAGS_THR_FAIL)
1207 ? "thread-level assertion"
1208 : (flags == MC_CMD_GET_ASSERTS_FLAGS_WDOG_FIRED)
1210 : (flags == MC_CMD_GET_ASSERTS_FLAGS_ADDR_TRAP)
1211 ? "illegal address trap"
1212 : "unknown assertion";
1213 EFSYS_PROBE3(mcpu_assertion,
1214 const char *, reason, unsigned int,
1215 MCDI_OUT_DWORD(req, GET_ASSERTS_OUT_SAVED_PC_OFFS),
1217 MCDI_OUT_DWORD(req, GET_ASSERTS_OUT_THREAD_OFFS));
1219 /* Print out the registers (r1 ... r31) */
1220 ofst = MC_CMD_GET_ASSERTS_OUT_GP_REGS_OFFS_OFST;
1222 index < 1 + MC_CMD_GET_ASSERTS_OUT_GP_REGS_OFFS_NUM;
1224 EFSYS_PROBE2(mcpu_register, unsigned int, index, unsigned int,
1225 EFX_DWORD_FIELD(*MCDI_OUT(req, efx_dword_t, ofst),
1227 ofst += sizeof (efx_dword_t);
1229 EFSYS_ASSERT(ofst <= MC_CMD_GET_ASSERTS_OUT_LEN);
1237 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1244 * Internal routines for for specific MCDI requests.
1247 __checkReturn efx_rc_t
1248 efx_mcdi_drv_attach(
1249 __in efx_nic_t *enp,
1250 __in boolean_t attach)
1253 EFX_MCDI_DECLARE_BUF(payload, MC_CMD_DRV_ATTACH_IN_LEN,
1254 MC_CMD_DRV_ATTACH_EXT_OUT_LEN);
1257 req.emr_cmd = MC_CMD_DRV_ATTACH;
1258 req.emr_in_buf = payload;
1259 req.emr_in_length = MC_CMD_DRV_ATTACH_IN_LEN;
1260 req.emr_out_buf = payload;
1261 req.emr_out_length = MC_CMD_DRV_ATTACH_EXT_OUT_LEN;
1264 * Typically, client drivers use DONT_CARE for the datapath firmware
1265 * type to ensure that the driver can attach to an unprivileged
1266 * function. The datapath firmware type to use is controlled by the
1268 * If a client driver wishes to attach with a specific datapath firmware
1269 * type, that can be passed in second argument of efx_nic_probe API. One
1270 * such example is the ESXi native driver that attempts attaching with
1271 * FULL_FEATURED datapath firmware type first and fall backs to
1272 * DONT_CARE datapath firmware type if MC_CMD_DRV_ATTACH fails.
1274 MCDI_IN_POPULATE_DWORD_2(req, DRV_ATTACH_IN_NEW_STATE,
1275 DRV_ATTACH_IN_ATTACH, attach ? 1 : 0,
1276 DRV_ATTACH_IN_SUBVARIANT_AWARE, EFSYS_OPT_FW_SUBVARIANT_AWARE);
1277 MCDI_IN_SET_DWORD(req, DRV_ATTACH_IN_UPDATE, 1);
1278 MCDI_IN_SET_DWORD(req, DRV_ATTACH_IN_FIRMWARE_ID, enp->efv);
1280 efx_mcdi_execute(enp, &req);
1282 if (req.emr_rc != 0) {
1287 if (req.emr_out_length_used < MC_CMD_DRV_ATTACH_OUT_LEN) {
1297 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1302 __checkReturn efx_rc_t
1303 efx_mcdi_get_board_cfg(
1304 __in efx_nic_t *enp,
1305 __out_opt uint32_t *board_typep,
1306 __out_opt efx_dword_t *capabilitiesp,
1307 __out_ecount_opt(6) uint8_t mac_addrp[6])
1309 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
1311 EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_BOARD_CFG_IN_LEN,
1312 MC_CMD_GET_BOARD_CFG_OUT_LENMIN);
1315 req.emr_cmd = MC_CMD_GET_BOARD_CFG;
1316 req.emr_in_buf = payload;
1317 req.emr_in_length = MC_CMD_GET_BOARD_CFG_IN_LEN;
1318 req.emr_out_buf = payload;
1319 req.emr_out_length = MC_CMD_GET_BOARD_CFG_OUT_LENMIN;
1321 efx_mcdi_execute(enp, &req);
1323 if (req.emr_rc != 0) {
1328 if (req.emr_out_length_used < MC_CMD_GET_BOARD_CFG_OUT_LENMIN) {
1333 if (mac_addrp != NULL) {
1336 if (emip->emi_port == 1) {
1337 addrp = MCDI_OUT2(req, uint8_t,
1338 GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT0);
1339 } else if (emip->emi_port == 2) {
1340 addrp = MCDI_OUT2(req, uint8_t,
1341 GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT1);
1347 EFX_MAC_ADDR_COPY(mac_addrp, addrp);
1350 if (capabilitiesp != NULL) {
1351 if (emip->emi_port == 1) {
1352 *capabilitiesp = *MCDI_OUT2(req, efx_dword_t,
1353 GET_BOARD_CFG_OUT_CAPABILITIES_PORT0);
1354 } else if (emip->emi_port == 2) {
1355 *capabilitiesp = *MCDI_OUT2(req, efx_dword_t,
1356 GET_BOARD_CFG_OUT_CAPABILITIES_PORT1);
1363 if (board_typep != NULL) {
1364 *board_typep = MCDI_OUT_DWORD(req,
1365 GET_BOARD_CFG_OUT_BOARD_TYPE);
1377 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1382 __checkReturn efx_rc_t
1383 efx_mcdi_get_resource_limits(
1384 __in efx_nic_t *enp,
1385 __out_opt uint32_t *nevqp,
1386 __out_opt uint32_t *nrxqp,
1387 __out_opt uint32_t *ntxqp)
1390 EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_RESOURCE_LIMITS_IN_LEN,
1391 MC_CMD_GET_RESOURCE_LIMITS_OUT_LEN);
1394 req.emr_cmd = MC_CMD_GET_RESOURCE_LIMITS;
1395 req.emr_in_buf = payload;
1396 req.emr_in_length = MC_CMD_GET_RESOURCE_LIMITS_IN_LEN;
1397 req.emr_out_buf = payload;
1398 req.emr_out_length = MC_CMD_GET_RESOURCE_LIMITS_OUT_LEN;
1400 efx_mcdi_execute(enp, &req);
1402 if (req.emr_rc != 0) {
1407 if (req.emr_out_length_used < MC_CMD_GET_RESOURCE_LIMITS_OUT_LEN) {
1413 *nevqp = MCDI_OUT_DWORD(req, GET_RESOURCE_LIMITS_OUT_EVQ);
1415 *nrxqp = MCDI_OUT_DWORD(req, GET_RESOURCE_LIMITS_OUT_RXQ);
1417 *ntxqp = MCDI_OUT_DWORD(req, GET_RESOURCE_LIMITS_OUT_TXQ);
1424 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1429 __checkReturn efx_rc_t
1430 efx_mcdi_get_phy_cfg(
1431 __in efx_nic_t *enp)
1433 efx_port_t *epp = &(enp->en_port);
1434 efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
1436 EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_PHY_CFG_IN_LEN,
1437 MC_CMD_GET_PHY_CFG_OUT_LEN);
1442 uint32_t phy_media_type;
1445 req.emr_cmd = MC_CMD_GET_PHY_CFG;
1446 req.emr_in_buf = payload;
1447 req.emr_in_length = MC_CMD_GET_PHY_CFG_IN_LEN;
1448 req.emr_out_buf = payload;
1449 req.emr_out_length = MC_CMD_GET_PHY_CFG_OUT_LEN;
1451 efx_mcdi_execute(enp, &req);
1453 if (req.emr_rc != 0) {
1458 if (req.emr_out_length_used < MC_CMD_GET_PHY_CFG_OUT_LEN) {
1463 encp->enc_phy_type = MCDI_OUT_DWORD(req, GET_PHY_CFG_OUT_TYPE);
1465 namep = MCDI_OUT2(req, char, GET_PHY_CFG_OUT_NAME);
1466 namelen = MIN(sizeof (encp->enc_phy_name) - 1,
1467 strnlen(namep, MC_CMD_GET_PHY_CFG_OUT_NAME_LEN));
1468 (void) memset(encp->enc_phy_name, 0,
1469 sizeof (encp->enc_phy_name));
1470 memcpy(encp->enc_phy_name, namep, namelen);
1471 #endif /* EFSYS_OPT_NAMES */
1472 (void) memset(encp->enc_phy_revision, 0,
1473 sizeof (encp->enc_phy_revision));
1474 memcpy(encp->enc_phy_revision,
1475 MCDI_OUT2(req, char, GET_PHY_CFG_OUT_REVISION),
1476 MIN(sizeof (encp->enc_phy_revision) - 1,
1477 MC_CMD_GET_PHY_CFG_OUT_REVISION_LEN));
1478 #if EFSYS_OPT_PHY_LED_CONTROL
1479 encp->enc_led_mask = ((1 << EFX_PHY_LED_DEFAULT) |
1480 (1 << EFX_PHY_LED_OFF) |
1481 (1 << EFX_PHY_LED_ON));
1482 #endif /* EFSYS_OPT_PHY_LED_CONTROL */
1484 /* Get the media type of the fixed port, if recognised. */
1485 EFX_STATIC_ASSERT(MC_CMD_MEDIA_XAUI == EFX_PHY_MEDIA_XAUI);
1486 EFX_STATIC_ASSERT(MC_CMD_MEDIA_CX4 == EFX_PHY_MEDIA_CX4);
1487 EFX_STATIC_ASSERT(MC_CMD_MEDIA_KX4 == EFX_PHY_MEDIA_KX4);
1488 EFX_STATIC_ASSERT(MC_CMD_MEDIA_XFP == EFX_PHY_MEDIA_XFP);
1489 EFX_STATIC_ASSERT(MC_CMD_MEDIA_SFP_PLUS == EFX_PHY_MEDIA_SFP_PLUS);
1490 EFX_STATIC_ASSERT(MC_CMD_MEDIA_BASE_T == EFX_PHY_MEDIA_BASE_T);
1491 EFX_STATIC_ASSERT(MC_CMD_MEDIA_QSFP_PLUS == EFX_PHY_MEDIA_QSFP_PLUS);
1492 phy_media_type = MCDI_OUT_DWORD(req, GET_PHY_CFG_OUT_MEDIA_TYPE);
1493 epp->ep_fixed_port_type = (efx_phy_media_type_t)phy_media_type;
1494 if (epp->ep_fixed_port_type >= EFX_PHY_MEDIA_NTYPES)
1495 epp->ep_fixed_port_type = EFX_PHY_MEDIA_INVALID;
1497 epp->ep_phy_cap_mask =
1498 MCDI_OUT_DWORD(req, GET_PHY_CFG_OUT_SUPPORTED_CAP);
1499 #if EFSYS_OPT_PHY_FLAGS
1500 encp->enc_phy_flags_mask = MCDI_OUT_DWORD(req, GET_PHY_CFG_OUT_FLAGS);
1501 #endif /* EFSYS_OPT_PHY_FLAGS */
1503 encp->enc_port = (uint8_t)MCDI_OUT_DWORD(req, GET_PHY_CFG_OUT_PRT);
1505 /* Populate internal state */
1506 encp->enc_mcdi_mdio_channel =
1507 (uint8_t)MCDI_OUT_DWORD(req, GET_PHY_CFG_OUT_CHANNEL);
1509 #if EFSYS_OPT_PHY_STATS
1510 encp->enc_mcdi_phy_stat_mask =
1511 MCDI_OUT_DWORD(req, GET_PHY_CFG_OUT_STATS_MASK);
1512 #endif /* EFSYS_OPT_PHY_STATS */
1515 encp->enc_bist_mask = 0;
1516 if (MCDI_OUT_DWORD_FIELD(req, GET_PHY_CFG_OUT_FLAGS,
1517 GET_PHY_CFG_OUT_BIST_CABLE_SHORT))
1518 encp->enc_bist_mask |= (1 << EFX_BIST_TYPE_PHY_CABLE_SHORT);
1519 if (MCDI_OUT_DWORD_FIELD(req, GET_PHY_CFG_OUT_FLAGS,
1520 GET_PHY_CFG_OUT_BIST_CABLE_LONG))
1521 encp->enc_bist_mask |= (1 << EFX_BIST_TYPE_PHY_CABLE_LONG);
1522 if (MCDI_OUT_DWORD_FIELD(req, GET_PHY_CFG_OUT_FLAGS,
1523 GET_PHY_CFG_OUT_BIST))
1524 encp->enc_bist_mask |= (1 << EFX_BIST_TYPE_PHY_NORMAL);
1525 #endif /* EFSYS_OPT_BIST */
1532 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1537 __checkReturn efx_rc_t
1538 efx_mcdi_firmware_update_supported(
1539 __in efx_nic_t *enp,
1540 __out boolean_t *supportedp)
1542 const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
1545 if (emcop != NULL) {
1546 if ((rc = emcop->emco_feature_supported(enp,
1547 EFX_MCDI_FEATURE_FW_UPDATE, supportedp)) != 0)
1550 /* Earlier devices always supported updates */
1551 *supportedp = B_TRUE;
1557 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1562 __checkReturn efx_rc_t
1563 efx_mcdi_macaddr_change_supported(
1564 __in efx_nic_t *enp,
1565 __out boolean_t *supportedp)
1567 const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
1570 if (emcop != NULL) {
1571 if ((rc = emcop->emco_feature_supported(enp,
1572 EFX_MCDI_FEATURE_MACADDR_CHANGE, supportedp)) != 0)
1575 /* Earlier devices always supported MAC changes */
1576 *supportedp = B_TRUE;
1582 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1587 __checkReturn efx_rc_t
1588 efx_mcdi_link_control_supported(
1589 __in efx_nic_t *enp,
1590 __out boolean_t *supportedp)
1592 const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
1595 if (emcop != NULL) {
1596 if ((rc = emcop->emco_feature_supported(enp,
1597 EFX_MCDI_FEATURE_LINK_CONTROL, supportedp)) != 0)
1600 /* Earlier devices always supported link control */
1601 *supportedp = B_TRUE;
1607 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1612 __checkReturn efx_rc_t
1613 efx_mcdi_mac_spoofing_supported(
1614 __in efx_nic_t *enp,
1615 __out boolean_t *supportedp)
1617 const efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
1620 if (emcop != NULL) {
1621 if ((rc = emcop->emco_feature_supported(enp,
1622 EFX_MCDI_FEATURE_MAC_SPOOFING, supportedp)) != 0)
1625 /* Earlier devices always supported MAC spoofing */
1626 *supportedp = B_TRUE;
1632 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1639 #if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2
1641 * Enter bist offline mode. This is a fw mode which puts the NIC into a state
1642 * where memory BIST tests can be run and not much else can interfere or happen.
1643 * A reboot is required to exit this mode.
1645 __checkReturn efx_rc_t
1646 efx_mcdi_bist_enable_offline(
1647 __in efx_nic_t *enp)
1652 EFX_STATIC_ASSERT(MC_CMD_ENABLE_OFFLINE_BIST_IN_LEN == 0);
1653 EFX_STATIC_ASSERT(MC_CMD_ENABLE_OFFLINE_BIST_OUT_LEN == 0);
1655 req.emr_cmd = MC_CMD_ENABLE_OFFLINE_BIST;
1656 req.emr_in_buf = NULL;
1657 req.emr_in_length = 0;
1658 req.emr_out_buf = NULL;
1659 req.emr_out_length = 0;
1661 efx_mcdi_execute(enp, &req);
1663 if (req.emr_rc != 0) {
1671 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1675 #endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2 */
1677 __checkReturn efx_rc_t
1678 efx_mcdi_bist_start(
1679 __in efx_nic_t *enp,
1680 __in efx_bist_type_t type)
1683 EFX_MCDI_DECLARE_BUF(payload, MC_CMD_START_BIST_IN_LEN,
1684 MC_CMD_START_BIST_OUT_LEN);
1687 req.emr_cmd = MC_CMD_START_BIST;
1688 req.emr_in_buf = payload;
1689 req.emr_in_length = MC_CMD_START_BIST_IN_LEN;
1690 req.emr_out_buf = payload;
1691 req.emr_out_length = MC_CMD_START_BIST_OUT_LEN;
1694 case EFX_BIST_TYPE_PHY_NORMAL:
1695 MCDI_IN_SET_DWORD(req, START_BIST_IN_TYPE, MC_CMD_PHY_BIST);
1697 case EFX_BIST_TYPE_PHY_CABLE_SHORT:
1698 MCDI_IN_SET_DWORD(req, START_BIST_IN_TYPE,
1699 MC_CMD_PHY_BIST_CABLE_SHORT);
1701 case EFX_BIST_TYPE_PHY_CABLE_LONG:
1702 MCDI_IN_SET_DWORD(req, START_BIST_IN_TYPE,
1703 MC_CMD_PHY_BIST_CABLE_LONG);
1705 case EFX_BIST_TYPE_MC_MEM:
1706 MCDI_IN_SET_DWORD(req, START_BIST_IN_TYPE,
1707 MC_CMD_MC_MEM_BIST);
1709 case EFX_BIST_TYPE_SAT_MEM:
1710 MCDI_IN_SET_DWORD(req, START_BIST_IN_TYPE,
1711 MC_CMD_PORT_MEM_BIST);
1713 case EFX_BIST_TYPE_REG:
1714 MCDI_IN_SET_DWORD(req, START_BIST_IN_TYPE,
1721 efx_mcdi_execute(enp, &req);
1723 if (req.emr_rc != 0) {
1731 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1736 #endif /* EFSYS_OPT_BIST */
1739 /* Enable logging of some events (e.g. link state changes) */
1740 __checkReturn efx_rc_t
1742 __in efx_nic_t *enp)
1745 EFX_MCDI_DECLARE_BUF(payload, MC_CMD_LOG_CTRL_IN_LEN,
1746 MC_CMD_LOG_CTRL_OUT_LEN);
1749 req.emr_cmd = MC_CMD_LOG_CTRL;
1750 req.emr_in_buf = payload;
1751 req.emr_in_length = MC_CMD_LOG_CTRL_IN_LEN;
1752 req.emr_out_buf = payload;
1753 req.emr_out_length = MC_CMD_LOG_CTRL_OUT_LEN;
1755 MCDI_IN_SET_DWORD(req, LOG_CTRL_IN_LOG_DEST,
1756 MC_CMD_LOG_CTRL_IN_LOG_DEST_EVQ);
1757 MCDI_IN_SET_DWORD(req, LOG_CTRL_IN_LOG_DEST_EVQ, 0);
1759 efx_mcdi_execute(enp, &req);
1761 if (req.emr_rc != 0) {
1769 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1775 #if EFSYS_OPT_MAC_STATS
1777 typedef enum efx_stats_action_e {
1780 EFX_STATS_ENABLE_NOEVENTS,
1781 EFX_STATS_ENABLE_EVENTS,
1783 } efx_stats_action_t;
1785 static __checkReturn efx_rc_t
1787 __in efx_nic_t *enp,
1788 __in_opt efsys_mem_t *esmp,
1789 __in efx_stats_action_t action,
1790 __in uint16_t period_ms)
1793 EFX_MCDI_DECLARE_BUF(payload, MC_CMD_MAC_STATS_IN_LEN,
1794 MC_CMD_MAC_STATS_V2_OUT_DMA_LEN);
1795 int clear = (action == EFX_STATS_CLEAR);
1796 int upload = (action == EFX_STATS_UPLOAD);
1797 int enable = (action == EFX_STATS_ENABLE_NOEVENTS);
1798 int events = (action == EFX_STATS_ENABLE_EVENTS);
1799 int disable = (action == EFX_STATS_DISABLE);
1802 req.emr_cmd = MC_CMD_MAC_STATS;
1803 req.emr_in_buf = payload;
1804 req.emr_in_length = MC_CMD_MAC_STATS_IN_LEN;
1805 req.emr_out_buf = payload;
1806 req.emr_out_length = MC_CMD_MAC_STATS_V2_OUT_DMA_LEN;
1808 MCDI_IN_POPULATE_DWORD_6(req, MAC_STATS_IN_CMD,
1809 MAC_STATS_IN_DMA, upload,
1810 MAC_STATS_IN_CLEAR, clear,
1811 MAC_STATS_IN_PERIODIC_CHANGE, enable | events | disable,
1812 MAC_STATS_IN_PERIODIC_ENABLE, enable | events,
1813 MAC_STATS_IN_PERIODIC_NOEVENT, !events,
1814 MAC_STATS_IN_PERIOD_MS, (enable | events) ? period_ms : 0);
1816 if (enable || events || upload) {
1817 const efx_nic_cfg_t *encp = &enp->en_nic_cfg;
1820 /* Periodic stats or stats upload require a DMA buffer */
1826 if (encp->enc_mac_stats_nstats < MC_CMD_MAC_NSTATS) {
1827 /* MAC stats count too small for legacy MAC stats */
1832 bytes = encp->enc_mac_stats_nstats * sizeof (efx_qword_t);
1834 if (EFSYS_MEM_SIZE(esmp) < bytes) {
1835 /* DMA buffer too small */
1840 MCDI_IN_SET_DWORD(req, MAC_STATS_IN_DMA_ADDR_LO,
1841 EFSYS_MEM_ADDR(esmp) & 0xffffffff);
1842 MCDI_IN_SET_DWORD(req, MAC_STATS_IN_DMA_ADDR_HI,
1843 EFSYS_MEM_ADDR(esmp) >> 32);
1844 MCDI_IN_SET_DWORD(req, MAC_STATS_IN_DMA_LEN, bytes);
1848 * NOTE: Do not use EVB_PORT_ID_ASSIGNED when disabling periodic stats,
1849 * as this may fail (and leave periodic DMA enabled) if the
1850 * vadapter has already been deleted.
1852 MCDI_IN_SET_DWORD(req, MAC_STATS_IN_PORT_ID,
1853 (disable ? EVB_PORT_ID_NULL : enp->en_vport_id));
1855 efx_mcdi_execute(enp, &req);
1857 if (req.emr_rc != 0) {
1858 /* EF10: Expect ENOENT if no DMA queues are initialised */
1859 if ((req.emr_rc != ENOENT) ||
1860 (enp->en_rx_qcount + enp->en_tx_qcount != 0)) {
1875 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1880 __checkReturn efx_rc_t
1881 efx_mcdi_mac_stats_clear(
1882 __in efx_nic_t *enp)
1886 if ((rc = efx_mcdi_mac_stats(enp, NULL, EFX_STATS_CLEAR, 0)) != 0)
1892 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1897 __checkReturn efx_rc_t
1898 efx_mcdi_mac_stats_upload(
1899 __in efx_nic_t *enp,
1900 __in efsys_mem_t *esmp)
1905 * The MC DMAs aggregate statistics for our convenience, so we can
1906 * avoid having to pull the statistics buffer into the cache to
1907 * maintain cumulative statistics.
1909 if ((rc = efx_mcdi_mac_stats(enp, esmp, EFX_STATS_UPLOAD, 0)) != 0)
1915 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1920 __checkReturn efx_rc_t
1921 efx_mcdi_mac_stats_periodic(
1922 __in efx_nic_t *enp,
1923 __in efsys_mem_t *esmp,
1924 __in uint16_t period_ms,
1925 __in boolean_t events)
1930 * The MC DMAs aggregate statistics for our convenience, so we can
1931 * avoid having to pull the statistics buffer into the cache to
1932 * maintain cumulative statistics.
1933 * Huntington uses a fixed 1sec period.
1934 * Medford uses a fixed 1sec period before v6.2.1.1033 firmware.
1937 rc = efx_mcdi_mac_stats(enp, NULL, EFX_STATS_DISABLE, 0);
1939 rc = efx_mcdi_mac_stats(enp, esmp, EFX_STATS_ENABLE_EVENTS,
1942 rc = efx_mcdi_mac_stats(enp, esmp, EFX_STATS_ENABLE_NOEVENTS,
1951 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1956 #endif /* EFSYS_OPT_MAC_STATS */
1958 #if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2
1961 * This function returns the pf and vf number of a function. If it is a pf the
1962 * vf number is 0xffff. The vf number is the index of the vf on that
1963 * function. So if you have 3 vfs on pf 0 the 3 vfs will return (pf=0,vf=0),
1964 * (pf=0,vf=1), (pf=0,vf=2) aand the pf will return (pf=0, vf=0xffff).
1966 __checkReturn efx_rc_t
1967 efx_mcdi_get_function_info(
1968 __in efx_nic_t *enp,
1969 __out uint32_t *pfp,
1970 __out_opt uint32_t *vfp)
1973 EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_FUNCTION_INFO_IN_LEN,
1974 MC_CMD_GET_FUNCTION_INFO_OUT_LEN);
1977 req.emr_cmd = MC_CMD_GET_FUNCTION_INFO;
1978 req.emr_in_buf = payload;
1979 req.emr_in_length = MC_CMD_GET_FUNCTION_INFO_IN_LEN;
1980 req.emr_out_buf = payload;
1981 req.emr_out_length = MC_CMD_GET_FUNCTION_INFO_OUT_LEN;
1983 efx_mcdi_execute(enp, &req);
1985 if (req.emr_rc != 0) {
1990 if (req.emr_out_length_used < MC_CMD_GET_FUNCTION_INFO_OUT_LEN) {
1995 *pfp = MCDI_OUT_DWORD(req, GET_FUNCTION_INFO_OUT_PF);
1997 *vfp = MCDI_OUT_DWORD(req, GET_FUNCTION_INFO_OUT_VF);
2004 EFSYS_PROBE1(fail1, efx_rc_t, rc);
2009 __checkReturn efx_rc_t
2010 efx_mcdi_privilege_mask(
2011 __in efx_nic_t *enp,
2014 __out uint32_t *maskp)
2017 EFX_MCDI_DECLARE_BUF(payload, MC_CMD_PRIVILEGE_MASK_IN_LEN,
2018 MC_CMD_PRIVILEGE_MASK_OUT_LEN);
2021 req.emr_cmd = MC_CMD_PRIVILEGE_MASK;
2022 req.emr_in_buf = payload;
2023 req.emr_in_length = MC_CMD_PRIVILEGE_MASK_IN_LEN;
2024 req.emr_out_buf = payload;
2025 req.emr_out_length = MC_CMD_PRIVILEGE_MASK_OUT_LEN;
2027 MCDI_IN_POPULATE_DWORD_2(req, PRIVILEGE_MASK_IN_FUNCTION,
2028 PRIVILEGE_MASK_IN_FUNCTION_PF, pf,
2029 PRIVILEGE_MASK_IN_FUNCTION_VF, vf);
2031 efx_mcdi_execute(enp, &req);
2033 if (req.emr_rc != 0) {
2038 if (req.emr_out_length_used < MC_CMD_PRIVILEGE_MASK_OUT_LEN) {
2043 *maskp = MCDI_OUT_DWORD(req, PRIVILEGE_MASK_OUT_OLD_MASK);
2050 EFSYS_PROBE1(fail1, efx_rc_t, rc);
2055 #endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2 */
2057 __checkReturn efx_rc_t
2058 efx_mcdi_set_workaround(
2059 __in efx_nic_t *enp,
2061 __in boolean_t enabled,
2062 __out_opt uint32_t *flagsp)
2065 EFX_MCDI_DECLARE_BUF(payload, MC_CMD_WORKAROUND_IN_LEN,
2066 MC_CMD_WORKAROUND_EXT_OUT_LEN);
2069 req.emr_cmd = MC_CMD_WORKAROUND;
2070 req.emr_in_buf = payload;
2071 req.emr_in_length = MC_CMD_WORKAROUND_IN_LEN;
2072 req.emr_out_buf = payload;
2073 req.emr_out_length = MC_CMD_WORKAROUND_OUT_LEN;
2075 MCDI_IN_SET_DWORD(req, WORKAROUND_IN_TYPE, type);
2076 MCDI_IN_SET_DWORD(req, WORKAROUND_IN_ENABLED, enabled ? 1 : 0);
2078 efx_mcdi_execute_quiet(enp, &req);
2080 if (req.emr_rc != 0) {
2085 if (flagsp != NULL) {
2086 if (req.emr_out_length_used >= MC_CMD_WORKAROUND_EXT_OUT_LEN)
2087 *flagsp = MCDI_OUT_DWORD(req, WORKAROUND_EXT_OUT_FLAGS);
2095 EFSYS_PROBE1(fail1, efx_rc_t, rc);
2101 __checkReturn efx_rc_t
2102 efx_mcdi_get_workarounds(
2103 __in efx_nic_t *enp,
2104 __out_opt uint32_t *implementedp,
2105 __out_opt uint32_t *enabledp)
2108 EFX_MCDI_DECLARE_BUF(payload, 0, MC_CMD_GET_WORKAROUNDS_OUT_LEN);
2111 req.emr_cmd = MC_CMD_GET_WORKAROUNDS;
2112 req.emr_in_buf = NULL;
2113 req.emr_in_length = 0;
2114 req.emr_out_buf = payload;
2115 req.emr_out_length = MC_CMD_GET_WORKAROUNDS_OUT_LEN;
2117 efx_mcdi_execute(enp, &req);
2119 if (req.emr_rc != 0) {
2124 if (implementedp != NULL) {
2126 MCDI_OUT_DWORD(req, GET_WORKAROUNDS_OUT_IMPLEMENTED);
2129 if (enabledp != NULL) {
2130 *enabledp = MCDI_OUT_DWORD(req, GET_WORKAROUNDS_OUT_ENABLED);
2136 EFSYS_PROBE1(fail1, efx_rc_t, rc);
2142 * Size of media information page in accordance with SFF-8472 and SFF-8436.
2143 * It is used in MCDI interface as well.
2145 #define EFX_PHY_MEDIA_INFO_PAGE_SIZE 0x80
2147 static __checkReturn efx_rc_t
2148 efx_mcdi_get_phy_media_info(
2149 __in efx_nic_t *enp,
2150 __in uint32_t mcdi_page,
2151 __in uint8_t offset,
2153 __out_bcount(len) uint8_t *data)
2156 EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN,
2157 MC_CMD_GET_PHY_MEDIA_INFO_OUT_LEN(
2158 EFX_PHY_MEDIA_INFO_PAGE_SIZE));
2161 EFSYS_ASSERT((uint32_t)offset + len <= EFX_PHY_MEDIA_INFO_PAGE_SIZE);
2163 req.emr_cmd = MC_CMD_GET_PHY_MEDIA_INFO;
2164 req.emr_in_buf = payload;
2165 req.emr_in_length = MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN;
2166 req.emr_out_buf = payload;
2167 req.emr_out_length =
2168 MC_CMD_GET_PHY_MEDIA_INFO_OUT_LEN(EFX_PHY_MEDIA_INFO_PAGE_SIZE);
2170 MCDI_IN_SET_DWORD(req, GET_PHY_MEDIA_INFO_IN_PAGE, mcdi_page);
2172 efx_mcdi_execute(enp, &req);
2174 if (req.emr_rc != 0) {
2179 if (req.emr_out_length_used !=
2180 MC_CMD_GET_PHY_MEDIA_INFO_OUT_LEN(EFX_PHY_MEDIA_INFO_PAGE_SIZE)) {
2185 if (MCDI_OUT_DWORD(req, GET_PHY_MEDIA_INFO_OUT_DATALEN) !=
2186 EFX_PHY_MEDIA_INFO_PAGE_SIZE) {
2192 MCDI_OUT2(req, uint8_t, GET_PHY_MEDIA_INFO_OUT_DATA) + offset,
2202 EFSYS_PROBE1(fail1, efx_rc_t, rc);
2208 * 2-wire device address of the base information in accordance with SFF-8472
2209 * Diagnostic Monitoring Interface for Optical Transceivers section
2210 * 4 Memory Organization.
2212 #define EFX_PHY_MEDIA_INFO_DEV_ADDR_SFP_BASE 0xA0
2215 * 2-wire device address of the digital diagnostics monitoring interface
2216 * in accordance with SFF-8472 Diagnostic Monitoring Interface for Optical
2217 * Transceivers section 4 Memory Organization.
2219 #define EFX_PHY_MEDIA_INFO_DEV_ADDR_SFP_DDM 0xA2
2222 * Hard wired 2-wire device address for QSFP+ in accordance with SFF-8436
2223 * QSFP+ 10 Gbs 4X PLUGGABLE TRANSCEIVER section 7.4 Device Addressing and
2226 #define EFX_PHY_MEDIA_INFO_DEV_ADDR_QSFP 0xA0
2228 __checkReturn efx_rc_t
2229 efx_mcdi_phy_module_get_info(
2230 __in efx_nic_t *enp,
2231 __in uint8_t dev_addr,
2232 __in uint8_t offset,
2234 __out_bcount(len) uint8_t *data)
2236 efx_port_t *epp = &(enp->en_port);
2238 uint32_t mcdi_lower_page;
2239 uint32_t mcdi_upper_page;
2241 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE);
2244 * Map device address to MC_CMD_GET_PHY_MEDIA_INFO pages.
2245 * Offset plus length interface allows to access page 0 only.
2246 * I.e. non-zero upper pages are not accessible.
2247 * See SFF-8472 section 4 Memory Organization and SFF-8436 section 7.6
2248 * QSFP+ Memory Map for details on how information is structured
2251 switch (epp->ep_fixed_port_type) {
2252 case EFX_PHY_MEDIA_SFP_PLUS:
2254 * In accordance with SFF-8472 Diagnostic Monitoring
2255 * Interface for Optical Transceivers section 4 Memory
2256 * Organization two 2-wire addresses are defined.
2259 /* Base information */
2260 case EFX_PHY_MEDIA_INFO_DEV_ADDR_SFP_BASE:
2262 * MCDI page 0 should be used to access lower
2263 * page 0 (0x00 - 0x7f) at the device address 0xA0.
2265 mcdi_lower_page = 0;
2267 * MCDI page 1 should be used to access upper
2268 * page 0 (0x80 - 0xff) at the device address 0xA0.
2270 mcdi_upper_page = 1;
2273 case EFX_PHY_MEDIA_INFO_DEV_ADDR_SFP_DDM:
2275 * MCDI page 2 should be used to access lower
2276 * page 0 (0x00 - 0x7f) at the device address 0xA2.
2278 mcdi_lower_page = 2;
2280 * MCDI page 3 should be used to access upper
2281 * page 0 (0x80 - 0xff) at the device address 0xA2.
2283 mcdi_upper_page = 3;
2290 case EFX_PHY_MEDIA_QSFP_PLUS:
2292 case EFX_PHY_MEDIA_INFO_DEV_ADDR_QSFP:
2294 * MCDI page -1 should be used to access lower page 0
2297 mcdi_lower_page = (uint32_t)-1;
2299 * MCDI page 0 should be used to access upper page 0
2302 mcdi_upper_page = 0;
2314 if (offset < EFX_PHY_MEDIA_INFO_PAGE_SIZE) {
2316 MIN(len, EFX_PHY_MEDIA_INFO_PAGE_SIZE - offset);
2318 rc = efx_mcdi_get_phy_media_info(enp,
2319 mcdi_lower_page, offset, read_len, data);
2328 offset -= EFX_PHY_MEDIA_INFO_PAGE_SIZE;
2332 EFSYS_ASSERT3U(len, <=, EFX_PHY_MEDIA_INFO_PAGE_SIZE);
2333 EFSYS_ASSERT3U(offset, <, EFX_PHY_MEDIA_INFO_PAGE_SIZE);
2335 rc = efx_mcdi_get_phy_media_info(enp,
2336 mcdi_upper_page, offset, len, data);
2348 EFSYS_PROBE1(fail1, efx_rc_t, rc);
2353 #endif /* EFSYS_OPT_MCDI */