1/*-
2 * Copyright (c) 2012-2015 Solarflare Communications Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,
9 *    this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 *    this list of conditions and the following disclaimer in the documentation
12 *    and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
21 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
24 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * The views and conclusions contained in the software and documentation are
27 * those of the authors and should not be interpreted as representing official
28 * policies, either expressed or implied, of the FreeBSD Project.
29 */
30
31#include <sys/cdefs.h>
32__FBSDID("$FreeBSD: releng/10.2/sys/dev/sfxge/common/hunt_mac.c 285813 2015-07-23 15:08:21Z arybchik $");
33
34#include "efsys.h"
35#include "efx.h"
36#include "efx_impl.h"
37
38
39#if EFSYS_OPT_HUNTINGTON
40
41	__checkReturn	int
42hunt_mac_poll(
43	__in		efx_nic_t *enp,
44	__out		efx_link_mode_t *link_modep)
45{
46	/*
47	 * TBD: Consider a common Siena/Huntington function.  The code is
48	 * essentially identical.
49	 */
50
51	efx_port_t *epp = &(enp->en_port);
52	hunt_link_state_t hls;
53	int rc;
54
55	if ((rc = hunt_phy_get_link(enp, &hls)) != 0)
56		goto fail1;
57
58	epp->ep_adv_cap_mask = hls.hls_adv_cap_mask;
59	epp->ep_fcntl = hls.hls_fcntl;
60
61	*link_modep = hls.hls_link_mode;
62
63	return (0);
64
65fail1:
66	EFSYS_PROBE1(fail1, int, rc);
67
68	*link_modep = EFX_LINK_UNKNOWN;
69
70	return (rc);
71}
72
73	__checkReturn	int
74hunt_mac_up(
75	__in		efx_nic_t *enp,
76	__out		boolean_t *mac_upp)
77{
78	/*
79	 * TBD: Consider a common Siena/Huntington function.  The code is
80	 * essentially identical.
81	 */
82
83	hunt_link_state_t hls;
84	int rc;
85
86	/*
87	 * Because Huntington doesn't *require* polling, we can't rely on
88	 * hunt_mac_poll() being executed to populate epp->ep_mac_up.
89	 */
90	if ((rc = hunt_phy_get_link(enp, &hls)) != 0)
91		goto fail1;
92
93	*mac_upp = hls.hls_mac_up;
94
95	return (0);
96
97fail1:
98	EFSYS_PROBE1(fail1, int, rc);
99
100	return (rc);
101}
102
103/*
104 * Huntington uses MC_CMD_VADAPTOR_SET_MAC to set the
105 * MAC address; the address field in MC_CMD_SET_MAC has no
106 * effect.
107 * MC_CMD_VADAPTOR_SET_MAC requires mac-spoofing privilege and
108 * the port to have no filters or queues active.
109 */
110static	__checkReturn	int
111efx_mcdi_vadapter_set_mac(
112	__in		efx_nic_t *enp)
113{
114	efx_port_t *epp = &(enp->en_port);
115	efx_mcdi_req_t req;
116	uint8_t payload[MAX(MC_CMD_VADAPTOR_SET_MAC_IN_LEN,
117			    MC_CMD_VADAPTOR_SET_MAC_OUT_LEN)];
118	int rc;
119
120	(void) memset(payload, 0, sizeof (payload));
121	req.emr_cmd = MC_CMD_VADAPTOR_SET_MAC;
122	req.emr_in_buf = payload;
123	req.emr_in_length = MC_CMD_VADAPTOR_SET_MAC_IN_LEN;
124	req.emr_out_buf = payload;
125	req.emr_out_length = MC_CMD_VADAPTOR_SET_MAC_OUT_LEN;
126
127	MCDI_IN_SET_DWORD(req, VADAPTOR_SET_MAC_IN_UPSTREAM_PORT_ID,
128	    enp->en_vport_id);
129	EFX_MAC_ADDR_COPY(MCDI_IN2(req, uint8_t, VADAPTOR_SET_MAC_IN_MACADDR),
130	    epp->ep_mac_addr);
131
132	efx_mcdi_execute(enp, &req);
133
134	if (req.emr_rc != 0) {
135		rc = req.emr_rc;
136		goto fail1;
137	}
138
139	return (0);
140
141fail1:
142	EFSYS_PROBE1(fail1, int, rc);
143
144	return (rc);
145}
146
147	__checkReturn	int
148hunt_mac_addr_set(
149	__in		efx_nic_t *enp)
150{
151	int rc;
152
153	if ((rc = efx_mcdi_vadapter_set_mac(enp)) != 0) {
154		if (rc != ENOTSUP)
155			goto fail1;
156
157		/* Fallback for older firmware without Vadapter support */
158		if ((rc = hunt_mac_reconfigure(enp)) != 0)
159			goto fail2;
160	}
161
162	return (0);
163
164fail2:
165	EFSYS_PROBE(fail2);
166
167fail1:
168	EFSYS_PROBE1(fail1, int, rc);
169
170	return (rc);
171}
172
173__checkReturn	int
174hunt_mac_reconfigure(
175	__in		efx_nic_t *enp)
176{
177	efx_port_t *epp = &(enp->en_port);
178	efx_mcdi_req_t req;
179	uint8_t payload[MAX(MC_CMD_SET_MAC_IN_LEN,
180			    MC_CMD_SET_MAC_OUT_LEN)];
181	int rc;
182
183	(void) memset(payload, 0, sizeof (payload));
184	req.emr_cmd = MC_CMD_SET_MAC;
185	req.emr_in_buf = payload;
186	req.emr_in_length = MC_CMD_SET_MAC_IN_LEN;
187	req.emr_out_buf = payload;
188	req.emr_out_length = MC_CMD_SET_MAC_OUT_LEN;
189
190	MCDI_IN_SET_DWORD(req, SET_MAC_IN_MTU, epp->ep_mac_pdu);
191	MCDI_IN_SET_DWORD(req, SET_MAC_IN_DRAIN, epp->ep_mac_drain ? 1 : 0);
192	EFX_MAC_ADDR_COPY(MCDI_IN2(req, uint8_t, SET_MAC_IN_ADDR),
193			    epp->ep_mac_addr);
194
195	/*
196	 * Note: The Huntington MAC does not support REJECT_BRDCST.
197	 * The REJECT_UNCST flag will also prevent multicast traffic
198	 * from reaching the filters. As Huntington filters drop any
199	 * traffic that does not match a filter it is ok to leave the
200	 * MAC running in promiscuous mode. See bug41141.
201	 */
202	MCDI_IN_POPULATE_DWORD_2(req, SET_MAC_IN_REJECT,
203				    SET_MAC_IN_REJECT_UNCST, 0,
204				    SET_MAC_IN_REJECT_BRDCST, 0);
205
206	/*
207	 * Flow control, whether it is auto-negotiated or not,
208	 * is set via the PHY advertised capabilities.  When set to
209	 * automatic the MAC will use the PHY settings to determine
210	 * the flow control settings.
211	 */
212	MCDI_IN_SET_DWORD(req, SET_MAC_IN_FCNTL, MC_CMD_FCNTL_AUTO);
213
214	/* Do not include the Ethernet frame checksum in RX packets */
215	MCDI_IN_POPULATE_DWORD_1(req, SET_MAC_IN_FLAGS,
216				    SET_MAC_IN_FLAG_INCLUDE_FCS, 0);
217
218	efx_mcdi_execute_quiet(enp, &req);
219
220	if (req.emr_rc != 0) {
221		/*
222		 * Unprivileged functions cannot control link state,
223		 * but still need to configure filters.
224		 */
225		if (req.emr_rc != EACCES) {
226			rc = req.emr_rc;
227			goto fail1;
228		}
229	}
230
231	/*
232	 * Apply the filters for the MAC configuration.
233	 * If the NIC isn't ready to accept filters this may
234	 * return success without setting anything.
235	 */
236	rc = efx_filter_reconfigure(enp, epp->ep_mac_addr,
237				    epp->ep_all_unicst, epp->ep_mulcst,
238				    epp->ep_all_mulcst, epp->ep_brdcst,
239				    epp->ep_mulcst_addr_list,
240				    epp->ep_mulcst_addr_count);
241
242	return (0);
243
244fail1:
245	EFSYS_PROBE1(fail1, int, rc);
246
247	return (rc);
248}
249
250	__checkReturn			int
251hunt_mac_multicast_list_set(
252	__in				efx_nic_t *enp)
253{
254	efx_port_t *epp = &(enp->en_port);
255	efx_mac_ops_t *emop = epp->ep_emop;
256	int rc;
257
258	EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON);
259
260	/* FIXME: Insert filters for multicast list */
261
262	if ((rc = emop->emo_reconfigure(enp)) != 0)
263		goto fail1;
264
265	return (0);
266
267fail1:
268	EFSYS_PROBE1(fail1, int, rc);
269
270	return (rc);
271}
272
273	__checkReturn	int
274hunt_mac_filter_default_rxq_set(
275	__in		efx_nic_t *enp,
276	__in		efx_rxq_t *erp,
277	__in		boolean_t using_rss)
278{
279	efx_port_t *epp = &(enp->en_port);
280	efx_rxq_t *old_rxq;
281	boolean_t old_using_rss;
282	int rc;
283
284	hunt_filter_get_default_rxq(enp, &old_rxq, &old_using_rss);
285
286	hunt_filter_default_rxq_set(enp, erp, using_rss);
287
288	rc = efx_filter_reconfigure(enp, epp->ep_mac_addr,
289				    epp->ep_all_unicst, epp->ep_mulcst,
290				    epp->ep_all_mulcst, epp->ep_brdcst,
291				    epp->ep_mulcst_addr_list,
292				    epp->ep_mulcst_addr_count);
293
294	if (rc != 0)
295		goto fail1;
296
297	return (0);
298
299fail1:
300	EFSYS_PROBE1(fail1, int, rc);
301
302	hunt_filter_default_rxq_set(enp, old_rxq, old_using_rss);
303
304	return (rc);
305}
306
307			void
308hunt_mac_filter_default_rxq_clear(
309	__in		efx_nic_t *enp)
310{
311	efx_port_t *epp = &(enp->en_port);
312
313	hunt_filter_default_rxq_clear(enp);
314
315	efx_filter_reconfigure(enp, epp->ep_mac_addr,
316				    epp->ep_all_unicst, epp->ep_mulcst,
317				    epp->ep_all_mulcst, epp->ep_brdcst,
318				    epp->ep_mulcst_addr_list,
319				    epp->ep_mulcst_addr_count);
320}
321
322
323#if EFSYS_OPT_LOOPBACK
324
325	__checkReturn	int
326hunt_mac_loopback_set(
327	__in		efx_nic_t *enp,
328	__in		efx_link_mode_t link_mode,
329	__in		efx_loopback_type_t loopback_type)
330{
331	/*
332	 * TBD: Consider a common Siena/Huntington function.  The code is
333	 * essentially identical.
334	 */
335
336	efx_port_t *epp = &(enp->en_port);
337	efx_phy_ops_t *epop = epp->ep_epop;
338	efx_loopback_type_t old_loopback_type;
339	efx_link_mode_t old_loopback_link_mode;
340	int rc;
341
342	/* The PHY object handles this on Huntington */
343	old_loopback_type = epp->ep_loopback_type;
344	old_loopback_link_mode = epp->ep_loopback_link_mode;
345	epp->ep_loopback_type = loopback_type;
346	epp->ep_loopback_link_mode = link_mode;
347
348	if ((rc = epop->epo_reconfigure(enp)) != 0)
349		goto fail1;
350
351	return (0);
352
353fail1:
354	EFSYS_PROBE(fail2);
355
356	epp->ep_loopback_type = old_loopback_type;
357	epp->ep_loopback_link_mode = old_loopback_link_mode;
358
359	return (rc);
360}
361
362#endif	/* EFSYS_OPT_LOOPBACK */
363
364#if EFSYS_OPT_MAC_STATS
365
366#define	HUNT_MAC_STAT_READ(_esmp, _field, _eqp)			\
367	EFSYS_MEM_READQ((_esmp), (_field) * sizeof (efx_qword_t), _eqp)
368
369
370	__checkReturn			int
371hunt_mac_stats_update(
372	__in				efx_nic_t *enp,
373	__in				efsys_mem_t *esmp,
374	__out_ecount(EFX_MAC_NSTATS)	efsys_stat_t *stat,
375	__out_opt			uint32_t *generationp)
376{
377	efx_qword_t value;
378	efx_qword_t generation_start;
379	efx_qword_t generation_end;
380
381	_NOTE(ARGUNUSED(enp))
382
383	/* Read END first so we don't race with the MC */
384	EFSYS_DMA_SYNC_FOR_KERNEL(esmp, 0, EFX_MAC_STATS_SIZE);
385	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_GENERATION_END,
386			    &generation_end);
387	EFSYS_MEM_READ_BARRIER();
388
389	/* TX */
390	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_PKTS, &value);
391	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_PKTS]), &value);
392
393	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_CONTROL_PKTS, &value);
394	EFSYS_STAT_SUBR_QWORD(&(stat[EFX_MAC_TX_PKTS]), &value);
395
396	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_PAUSE_PKTS, &value);
397	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_PAUSE_PKTS]), &value);
398
399	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_UNICAST_PKTS, &value);
400	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_UNICST_PKTS]), &value);
401
402	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_MULTICAST_PKTS, &value);
403	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_MULTICST_PKTS]), &value);
404
405	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_BROADCAST_PKTS, &value);
406	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_BRDCST_PKTS]), &value);
407
408	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_BYTES, &value);
409	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_OCTETS]), &value);
410
411	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_LT64_PKTS, &value);
412	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_LE_64_PKTS]), &value);
413	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_64_PKTS, &value);
414	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_LE_64_PKTS]), &value);
415
416	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_65_TO_127_PKTS, &value);
417	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_65_TO_127_PKTS]), &value);
418
419	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_128_TO_255_PKTS, &value);
420	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_128_TO_255_PKTS]), &value);
421
422	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_256_TO_511_PKTS, &value);
423	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_256_TO_511_PKTS]), &value);
424
425	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_512_TO_1023_PKTS, &value);
426	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_512_TO_1023_PKTS]), &value);
427
428	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_1024_TO_15XX_PKTS, &value);
429	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_1024_TO_15XX_PKTS]), &value);
430
431	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_15XX_TO_JUMBO_PKTS, &value);
432	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_GE_15XX_PKTS]), &value);
433	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_GTJUMBO_PKTS, &value);
434	EFSYS_STAT_INCR_QWORD(&(stat[EFX_MAC_TX_GE_15XX_PKTS]), &value);
435
436	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_BAD_FCS_PKTS, &value);
437	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_ERRORS]), &value);
438
439	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_SINGLE_COLLISION_PKTS, &value);
440	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_SGL_COL_PKTS]), &value);
441
442	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_MULTIPLE_COLLISION_PKTS,
443			    &value);
444	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_MULT_COL_PKTS]), &value);
445
446	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_EXCESSIVE_COLLISION_PKTS,
447			    &value);
448	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_EX_COL_PKTS]), &value);
449
450	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_LATE_COLLISION_PKTS, &value);
451	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_LATE_COL_PKTS]), &value);
452
453	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_DEFERRED_PKTS, &value);
454	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_DEF_PKTS]), &value);
455
456	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_EXCESSIVE_DEFERRED_PKTS,
457	    &value);
458	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_EX_DEF_PKTS]), &value);
459
460	/* RX */
461	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_BYTES, &value);
462	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_OCTETS]), &value);
463
464	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_PKTS, &value);
465	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_PKTS]), &value);
466
467	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_UNICAST_PKTS, &value);
468	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_UNICST_PKTS]), &value);
469
470	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_MULTICAST_PKTS, &value);
471	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_MULTICST_PKTS]), &value);
472
473	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_BROADCAST_PKTS, &value);
474	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_BRDCST_PKTS]), &value);
475
476	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_PAUSE_PKTS, &value);
477	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_PAUSE_PKTS]), &value);
478
479	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_UNDERSIZE_PKTS, &value);
480	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_LE_64_PKTS]), &value);
481	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_64_PKTS, &value);
482	EFSYS_STAT_INCR_QWORD(&(stat[EFX_MAC_RX_LE_64_PKTS]), &value);
483
484	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_65_TO_127_PKTS, &value);
485	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_65_TO_127_PKTS]), &value);
486
487	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_128_TO_255_PKTS, &value);
488	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_128_TO_255_PKTS]), &value);
489
490	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_256_TO_511_PKTS, &value);
491	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_256_TO_511_PKTS]), &value);
492
493	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_512_TO_1023_PKTS, &value);
494	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_512_TO_1023_PKTS]), &value);
495
496	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_1024_TO_15XX_PKTS, &value);
497	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_1024_TO_15XX_PKTS]), &value);
498
499	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_15XX_TO_JUMBO_PKTS, &value);
500	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_GE_15XX_PKTS]), &value);
501	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_GTJUMBO_PKTS, &value);
502	EFSYS_STAT_INCR_QWORD(&(stat[EFX_MAC_RX_GE_15XX_PKTS]), &value);
503
504	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_BAD_FCS_PKTS, &value);
505	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_FCS_ERRORS]), &value);
506
507	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_OVERFLOW_PKTS, &value);
508	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_DROP_EVENTS]), &value);
509
510	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_FALSE_CARRIER_PKTS, &value);
511	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_FALSE_CARRIER_ERRORS]), &value);
512
513	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_SYMBOL_ERROR_PKTS, &value);
514	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_SYMBOL_ERRORS]), &value);
515
516	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_ALIGN_ERROR_PKTS, &value);
517	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_ALIGN_ERRORS]), &value);
518
519	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_INTERNAL_ERROR_PKTS, &value);
520	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_INTERNAL_ERRORS]), &value);
521
522	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_JABBER_PKTS, &value);
523	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_JABBER_PKTS]), &value);
524
525	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_LANES01_CHAR_ERR, &value);
526	EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE0_CHAR_ERR]),
527			    &(value.eq_dword[0]));
528	EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE1_CHAR_ERR]),
529			    &(value.eq_dword[1]));
530
531	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_LANES23_CHAR_ERR, &value);
532	EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE2_CHAR_ERR]),
533			    &(value.eq_dword[0]));
534	EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE3_CHAR_ERR]),
535			    &(value.eq_dword[1]));
536
537	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_LANES01_DISP_ERR, &value);
538	EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE0_DISP_ERR]),
539			    &(value.eq_dword[0]));
540	EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE1_DISP_ERR]),
541			    &(value.eq_dword[1]));
542
543	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_LANES23_DISP_ERR, &value);
544	EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE2_DISP_ERR]),
545			    &(value.eq_dword[0]));
546	EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE3_DISP_ERR]),
547			    &(value.eq_dword[1]));
548
549	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_MATCH_FAULT, &value);
550	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_MATCH_FAULT]), &value);
551
552	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_NODESC_DROPS, &value);
553	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_NODESC_DROP_CNT]), &value);
554
555	/* Packet memory (EF10 only) */
556	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_TRUNC_BB_OVERFLOW, &value);
557	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_TRUNC_BB_OVERFLOW]), &value);
558
559	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_DISCARD_BB_OVERFLOW, &value);
560	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_DISCARD_BB_OVERFLOW]), &value);
561
562	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_TRUNC_VFIFO_FULL, &value);
563	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_TRUNC_VFIFO_FULL]), &value);
564
565	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_DISCARD_VFIFO_FULL, &value);
566	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_DISCARD_VFIFO_FULL]), &value);
567
568	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_TRUNC_QBB, &value);
569	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_TRUNC_QBB]), &value);
570
571	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_DISCARD_QBB, &value);
572	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_DISCARD_QBB]), &value);
573
574	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_DISCARD_MAPPING, &value);
575	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_DISCARD_MAPPING]), &value);
576
577	/* RX datapath */
578	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_Q_DISABLED_PKTS, &value);
579	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_Q_DISABLED_PKTS]), &value);
580
581	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_DI_DROPPED_PKTS, &value);
582	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_DI_DROPPED_PKTS]), &value);
583
584	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_STREAMING_PKTS, &value);
585	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_STREAMING_PKTS]), &value);
586
587	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_HLB_FETCH_CONDITIONS, &value);
588	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_HLB_FETCH]), &value);
589
590	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_HLB_WAIT_CONDITIONS, &value);
591	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_HLB_WAIT]), &value);
592
593
594	/* VADAPTER RX */
595	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_UNICAST_PACKETS,
596	    &value);
597	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS]),
598	    &value);
599
600	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_UNICAST_BYTES,
601	    &value);
602	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_UNICAST_BYTES]),
603	    &value);
604
605	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_MULTICAST_PACKETS,
606	    &value);
607	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS]),
608	    &value);
609
610	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_MULTICAST_BYTES,
611	    &value);
612	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES]),
613	    &value);
614
615	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_BROADCAST_PACKETS,
616	    &value);
617	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS]),
618	    &value);
619
620	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_BROADCAST_BYTES,
621	    &value);
622	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES]),
623	    &value);
624
625	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_BAD_PACKETS,
626	    &value);
627	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_BAD_PACKETS]),
628	    &value);
629
630	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_BAD_BYTES, &value);
631	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_BAD_BYTES]), &value);
632
633	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_OVERFLOW, &value);
634	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_OVERFLOW]), &value);
635
636	/* VADAPTER TX */
637	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_UNICAST_PACKETS,
638	    &value);
639	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS]),
640	    &value);
641
642	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_UNICAST_BYTES,
643	    &value);
644	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_UNICAST_BYTES]),
645	    &value);
646
647	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_MULTICAST_PACKETS,
648	    &value);
649	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS]),
650	    &value);
651
652	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_MULTICAST_BYTES,
653	    &value);
654	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES]),
655	    &value);
656
657	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_BROADCAST_PACKETS,
658	    &value);
659	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS]),
660	    &value);
661
662	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_BROADCAST_BYTES,
663	    &value);
664	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES]),
665	    &value);
666
667	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_BAD_PACKETS, &value);
668	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_BAD_PACKETS]), &value);
669
670	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_BAD_BYTES, &value);
671	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_BAD_BYTES]), &value);
672
673	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_OVERFLOW, &value);
674	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_OVERFLOW]), &value);
675
676
677	EFSYS_DMA_SYNC_FOR_KERNEL(esmp, 0, EFX_MAC_STATS_SIZE);
678	EFSYS_MEM_READ_BARRIER();
679	HUNT_MAC_STAT_READ(esmp, MC_CMD_MAC_GENERATION_START,
680			    &generation_start);
681
682	/* Check that we didn't read the stats in the middle of a DMA */
683	/* Not a good enough check ? */
684	if (memcmp(&generation_start, &generation_end,
685	    sizeof (generation_start)))
686		return (EAGAIN);
687
688	if (generationp)
689		*generationp = EFX_QWORD_FIELD(generation_start, EFX_DWORD_0);
690
691	return (0);
692}
693
694#endif	/* EFSYS_OPT_MAC_STATS */
695
696#endif	/* EFSYS_OPT_HUNTINGTON */
697