xref: /linux/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h (revision b889fcf63cb62e7fdb7816565e28f44dbe4a76a5)
1 /* bnx2x_stats.h: Broadcom Everest network driver.
2  *
3  * Copyright (c) 2007-2012 Broadcom Corporation
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation.
8  *
9  * Maintained by: Eilon Greenstein <eilong@broadcom.com>
10  * Written by: Eliezer Tamir
11  * Based on code from Michael Chan's bnx2 driver
12  * UDP CSUM errata workaround by Arik Gendelman
13  * Slowpath and fastpath rework by Vladislav Zolotarov
14  * Statistics and Link management by Yitchak Gertner
15  *
16  */
17 #ifndef BNX2X_STATS_H
18 #define BNX2X_STATS_H
19 
20 #include <linux/types.h>
21 
22 struct nig_stats {
23 	u32 brb_discard;
24 	u32 brb_packet;
25 	u32 brb_truncate;
26 	u32 flow_ctrl_discard;
27 	u32 flow_ctrl_octets;
28 	u32 flow_ctrl_packet;
29 	u32 mng_discard;
30 	u32 mng_octet_inp;
31 	u32 mng_octet_out;
32 	u32 mng_packet_inp;
33 	u32 mng_packet_out;
34 	u32 pbf_octets;
35 	u32 pbf_packet;
36 	u32 safc_inp;
37 	u32 egress_mac_pkt0_lo;
38 	u32 egress_mac_pkt0_hi;
39 	u32 egress_mac_pkt1_lo;
40 	u32 egress_mac_pkt1_hi;
41 };
42 
43 
44 enum bnx2x_stats_event {
45 	STATS_EVENT_PMF = 0,
46 	STATS_EVENT_LINK_UP,
47 	STATS_EVENT_UPDATE,
48 	STATS_EVENT_STOP,
49 	STATS_EVENT_MAX
50 };
51 
52 enum bnx2x_stats_state {
53 	STATS_STATE_DISABLED = 0,
54 	STATS_STATE_ENABLED,
55 	STATS_STATE_MAX
56 };
57 
58 struct bnx2x_eth_stats {
59 	u32 total_bytes_received_hi;
60 	u32 total_bytes_received_lo;
61 	u32 total_bytes_transmitted_hi;
62 	u32 total_bytes_transmitted_lo;
63 	u32 total_unicast_packets_received_hi;
64 	u32 total_unicast_packets_received_lo;
65 	u32 total_multicast_packets_received_hi;
66 	u32 total_multicast_packets_received_lo;
67 	u32 total_broadcast_packets_received_hi;
68 	u32 total_broadcast_packets_received_lo;
69 	u32 total_unicast_packets_transmitted_hi;
70 	u32 total_unicast_packets_transmitted_lo;
71 	u32 total_multicast_packets_transmitted_hi;
72 	u32 total_multicast_packets_transmitted_lo;
73 	u32 total_broadcast_packets_transmitted_hi;
74 	u32 total_broadcast_packets_transmitted_lo;
75 	u32 valid_bytes_received_hi;
76 	u32 valid_bytes_received_lo;
77 
78 	u32 error_bytes_received_hi;
79 	u32 error_bytes_received_lo;
80 	u32 etherstatsoverrsizepkts_hi;
81 	u32 etherstatsoverrsizepkts_lo;
82 	u32 no_buff_discard_hi;
83 	u32 no_buff_discard_lo;
84 
85 	u32 rx_stat_ifhcinbadoctets_hi;
86 	u32 rx_stat_ifhcinbadoctets_lo;
87 	u32 tx_stat_ifhcoutbadoctets_hi;
88 	u32 tx_stat_ifhcoutbadoctets_lo;
89 	u32 rx_stat_dot3statsfcserrors_hi;
90 	u32 rx_stat_dot3statsfcserrors_lo;
91 	u32 rx_stat_dot3statsalignmenterrors_hi;
92 	u32 rx_stat_dot3statsalignmenterrors_lo;
93 	u32 rx_stat_dot3statscarriersenseerrors_hi;
94 	u32 rx_stat_dot3statscarriersenseerrors_lo;
95 	u32 rx_stat_falsecarriererrors_hi;
96 	u32 rx_stat_falsecarriererrors_lo;
97 	u32 rx_stat_etherstatsundersizepkts_hi;
98 	u32 rx_stat_etherstatsundersizepkts_lo;
99 	u32 rx_stat_dot3statsframestoolong_hi;
100 	u32 rx_stat_dot3statsframestoolong_lo;
101 	u32 rx_stat_etherstatsfragments_hi;
102 	u32 rx_stat_etherstatsfragments_lo;
103 	u32 rx_stat_etherstatsjabbers_hi;
104 	u32 rx_stat_etherstatsjabbers_lo;
105 	u32 rx_stat_maccontrolframesreceived_hi;
106 	u32 rx_stat_maccontrolframesreceived_lo;
107 	u32 rx_stat_bmac_xpf_hi;
108 	u32 rx_stat_bmac_xpf_lo;
109 	u32 rx_stat_bmac_xcf_hi;
110 	u32 rx_stat_bmac_xcf_lo;
111 	u32 rx_stat_xoffstateentered_hi;
112 	u32 rx_stat_xoffstateentered_lo;
113 	u32 rx_stat_xonpauseframesreceived_hi;
114 	u32 rx_stat_xonpauseframesreceived_lo;
115 	u32 rx_stat_xoffpauseframesreceived_hi;
116 	u32 rx_stat_xoffpauseframesreceived_lo;
117 	u32 tx_stat_outxonsent_hi;
118 	u32 tx_stat_outxonsent_lo;
119 	u32 tx_stat_outxoffsent_hi;
120 	u32 tx_stat_outxoffsent_lo;
121 	u32 tx_stat_flowcontroldone_hi;
122 	u32 tx_stat_flowcontroldone_lo;
123 	u32 tx_stat_etherstatscollisions_hi;
124 	u32 tx_stat_etherstatscollisions_lo;
125 	u32 tx_stat_dot3statssinglecollisionframes_hi;
126 	u32 tx_stat_dot3statssinglecollisionframes_lo;
127 	u32 tx_stat_dot3statsmultiplecollisionframes_hi;
128 	u32 tx_stat_dot3statsmultiplecollisionframes_lo;
129 	u32 tx_stat_dot3statsdeferredtransmissions_hi;
130 	u32 tx_stat_dot3statsdeferredtransmissions_lo;
131 	u32 tx_stat_dot3statsexcessivecollisions_hi;
132 	u32 tx_stat_dot3statsexcessivecollisions_lo;
133 	u32 tx_stat_dot3statslatecollisions_hi;
134 	u32 tx_stat_dot3statslatecollisions_lo;
135 	u32 tx_stat_etherstatspkts64octets_hi;
136 	u32 tx_stat_etherstatspkts64octets_lo;
137 	u32 tx_stat_etherstatspkts65octetsto127octets_hi;
138 	u32 tx_stat_etherstatspkts65octetsto127octets_lo;
139 	u32 tx_stat_etherstatspkts128octetsto255octets_hi;
140 	u32 tx_stat_etherstatspkts128octetsto255octets_lo;
141 	u32 tx_stat_etherstatspkts256octetsto511octets_hi;
142 	u32 tx_stat_etherstatspkts256octetsto511octets_lo;
143 	u32 tx_stat_etherstatspkts512octetsto1023octets_hi;
144 	u32 tx_stat_etherstatspkts512octetsto1023octets_lo;
145 	u32 tx_stat_etherstatspkts1024octetsto1522octets_hi;
146 	u32 tx_stat_etherstatspkts1024octetsto1522octets_lo;
147 	u32 tx_stat_etherstatspktsover1522octets_hi;
148 	u32 tx_stat_etherstatspktsover1522octets_lo;
149 	u32 tx_stat_bmac_2047_hi;
150 	u32 tx_stat_bmac_2047_lo;
151 	u32 tx_stat_bmac_4095_hi;
152 	u32 tx_stat_bmac_4095_lo;
153 	u32 tx_stat_bmac_9216_hi;
154 	u32 tx_stat_bmac_9216_lo;
155 	u32 tx_stat_bmac_16383_hi;
156 	u32 tx_stat_bmac_16383_lo;
157 	u32 tx_stat_dot3statsinternalmactransmiterrors_hi;
158 	u32 tx_stat_dot3statsinternalmactransmiterrors_lo;
159 	u32 tx_stat_bmac_ufl_hi;
160 	u32 tx_stat_bmac_ufl_lo;
161 
162 	u32 pause_frames_received_hi;
163 	u32 pause_frames_received_lo;
164 	u32 pause_frames_sent_hi;
165 	u32 pause_frames_sent_lo;
166 
167 	u32 etherstatspkts1024octetsto1522octets_hi;
168 	u32 etherstatspkts1024octetsto1522octets_lo;
169 	u32 etherstatspktsover1522octets_hi;
170 	u32 etherstatspktsover1522octets_lo;
171 
172 	u32 brb_drop_hi;
173 	u32 brb_drop_lo;
174 	u32 brb_truncate_hi;
175 	u32 brb_truncate_lo;
176 
177 	u32 mac_filter_discard;
178 	u32 mf_tag_discard;
179 	u32 brb_truncate_discard;
180 	u32 mac_discard;
181 
182 	u32 driver_xoff;
183 	u32 rx_err_discard_pkt;
184 	u32 rx_skb_alloc_failed;
185 	u32 hw_csum_err;
186 
187 	u32 nig_timer_max;
188 
189 	/* TPA */
190 	u32 total_tpa_aggregations_hi;
191 	u32 total_tpa_aggregations_lo;
192 	u32 total_tpa_aggregated_frames_hi;
193 	u32 total_tpa_aggregated_frames_lo;
194 	u32 total_tpa_bytes_hi;
195 	u32 total_tpa_bytes_lo;
196 
197 	/* PFC */
198 	u32 pfc_frames_received_hi;
199 	u32 pfc_frames_received_lo;
200 	u32 pfc_frames_sent_hi;
201 	u32 pfc_frames_sent_lo;
202 
203 	/* Recovery */
204 	u32 recoverable_error;
205 	u32 unrecoverable_error;
206 	u32 driver_filtered_tx_pkt;
207 	/* src: Clear-on-Read register; Will not survive PMF Migration */
208 	u32 eee_tx_lpi;
209 };
210 
211 
212 struct bnx2x_eth_q_stats {
213 	u32 total_unicast_bytes_received_hi;
214 	u32 total_unicast_bytes_received_lo;
215 	u32 total_broadcast_bytes_received_hi;
216 	u32 total_broadcast_bytes_received_lo;
217 	u32 total_multicast_bytes_received_hi;
218 	u32 total_multicast_bytes_received_lo;
219 	u32 total_bytes_received_hi;
220 	u32 total_bytes_received_lo;
221 	u32 total_unicast_bytes_transmitted_hi;
222 	u32 total_unicast_bytes_transmitted_lo;
223 	u32 total_broadcast_bytes_transmitted_hi;
224 	u32 total_broadcast_bytes_transmitted_lo;
225 	u32 total_multicast_bytes_transmitted_hi;
226 	u32 total_multicast_bytes_transmitted_lo;
227 	u32 total_bytes_transmitted_hi;
228 	u32 total_bytes_transmitted_lo;
229 	u32 total_unicast_packets_received_hi;
230 	u32 total_unicast_packets_received_lo;
231 	u32 total_multicast_packets_received_hi;
232 	u32 total_multicast_packets_received_lo;
233 	u32 total_broadcast_packets_received_hi;
234 	u32 total_broadcast_packets_received_lo;
235 	u32 total_unicast_packets_transmitted_hi;
236 	u32 total_unicast_packets_transmitted_lo;
237 	u32 total_multicast_packets_transmitted_hi;
238 	u32 total_multicast_packets_transmitted_lo;
239 	u32 total_broadcast_packets_transmitted_hi;
240 	u32 total_broadcast_packets_transmitted_lo;
241 	u32 valid_bytes_received_hi;
242 	u32 valid_bytes_received_lo;
243 
244 	u32 etherstatsoverrsizepkts_hi;
245 	u32 etherstatsoverrsizepkts_lo;
246 	u32 no_buff_discard_hi;
247 	u32 no_buff_discard_lo;
248 
249 	u32 driver_xoff;
250 	u32 rx_err_discard_pkt;
251 	u32 rx_skb_alloc_failed;
252 	u32 hw_csum_err;
253 
254 	u32 total_packets_received_checksum_discarded_hi;
255 	u32 total_packets_received_checksum_discarded_lo;
256 	u32 total_packets_received_ttl0_discarded_hi;
257 	u32 total_packets_received_ttl0_discarded_lo;
258 	u32 total_transmitted_dropped_packets_error_hi;
259 	u32 total_transmitted_dropped_packets_error_lo;
260 
261 	/* TPA */
262 	u32 total_tpa_aggregations_hi;
263 	u32 total_tpa_aggregations_lo;
264 	u32 total_tpa_aggregated_frames_hi;
265 	u32 total_tpa_aggregated_frames_lo;
266 	u32 total_tpa_bytes_hi;
267 	u32 total_tpa_bytes_lo;
268 	u32 driver_filtered_tx_pkt;
269 };
270 
271 struct bnx2x_eth_stats_old {
272 	u32 rx_stat_dot3statsframestoolong_hi;
273 	u32 rx_stat_dot3statsframestoolong_lo;
274 };
275 
276 struct bnx2x_eth_q_stats_old {
277 	/* Fields to perserve over fw reset*/
278 	u32 total_unicast_bytes_received_hi;
279 	u32 total_unicast_bytes_received_lo;
280 	u32 total_broadcast_bytes_received_hi;
281 	u32 total_broadcast_bytes_received_lo;
282 	u32 total_multicast_bytes_received_hi;
283 	u32 total_multicast_bytes_received_lo;
284 	u32 total_unicast_bytes_transmitted_hi;
285 	u32 total_unicast_bytes_transmitted_lo;
286 	u32 total_broadcast_bytes_transmitted_hi;
287 	u32 total_broadcast_bytes_transmitted_lo;
288 	u32 total_multicast_bytes_transmitted_hi;
289 	u32 total_multicast_bytes_transmitted_lo;
290 	u32 total_tpa_bytes_hi;
291 	u32 total_tpa_bytes_lo;
292 
293 	/* Fields to perserve last of */
294 	u32 total_bytes_received_hi;
295 	u32 total_bytes_received_lo;
296 	u32 total_bytes_transmitted_hi;
297 	u32 total_bytes_transmitted_lo;
298 	u32 total_unicast_packets_received_hi;
299 	u32 total_unicast_packets_received_lo;
300 	u32 total_multicast_packets_received_hi;
301 	u32 total_multicast_packets_received_lo;
302 	u32 total_broadcast_packets_received_hi;
303 	u32 total_broadcast_packets_received_lo;
304 	u32 total_unicast_packets_transmitted_hi;
305 	u32 total_unicast_packets_transmitted_lo;
306 	u32 total_multicast_packets_transmitted_hi;
307 	u32 total_multicast_packets_transmitted_lo;
308 	u32 total_broadcast_packets_transmitted_hi;
309 	u32 total_broadcast_packets_transmitted_lo;
310 	u32 valid_bytes_received_hi;
311 	u32 valid_bytes_received_lo;
312 
313 	u32 total_tpa_bytes_hi_old;
314 	u32 total_tpa_bytes_lo_old;
315 
316 	u32 driver_xoff_old;
317 	u32 rx_err_discard_pkt_old;
318 	u32 rx_skb_alloc_failed_old;
319 	u32 hw_csum_err_old;
320 	u32 driver_filtered_tx_pkt_old;
321 };
322 
323 struct bnx2x_net_stats_old {
324 	 u32 rx_dropped;
325 };
326 
327 struct bnx2x_fw_port_stats_old {
328 	 u32 mac_filter_discard;
329 	 u32 mf_tag_discard;
330 	 u32 brb_truncate_discard;
331 	 u32 mac_discard;
332 };
333 
334 
335 /****************************************************************************
336 * Macros
337 ****************************************************************************/
338 
339 /* sum[hi:lo] += add[hi:lo] */
340 #define ADD_64(s_hi, a_hi, s_lo, a_lo) \
341 	do { \
342 		s_lo += a_lo; \
343 		s_hi += a_hi + ((s_lo < a_lo) ? 1 : 0); \
344 	} while (0)
345 
346 #define LE32_0 ((__force __le32) 0)
347 #define LE16_0 ((__force __le16) 0)
348 
349 /* The _force is for cases where high value is 0 */
350 #define ADD_64_LE(s_hi, a_hi_le, s_lo, a_lo_le) \
351 		ADD_64(s_hi, le32_to_cpu(a_hi_le), \
352 		       s_lo, le32_to_cpu(a_lo_le))
353 
354 #define ADD_64_LE16(s_hi, a_hi_le, s_lo, a_lo_le) \
355 		ADD_64(s_hi, le16_to_cpu(a_hi_le), \
356 		       s_lo, le16_to_cpu(a_lo_le))
357 
358 /* difference = minuend - subtrahend */
359 #define DIFF_64(d_hi, m_hi, s_hi, d_lo, m_lo, s_lo) \
360 	do { \
361 		if (m_lo < s_lo) { \
362 			/* underflow */ \
363 			d_hi = m_hi - s_hi; \
364 			if (d_hi > 0) { \
365 				/* we can 'loan' 1 */ \
366 				d_hi--; \
367 				d_lo = m_lo + (UINT_MAX - s_lo) + 1; \
368 			} else { \
369 				/* m_hi <= s_hi */ \
370 				d_hi = 0; \
371 				d_lo = 0; \
372 			} \
373 		} else { \
374 			/* m_lo >= s_lo */ \
375 			if (m_hi < s_hi) { \
376 				d_hi = 0; \
377 				d_lo = 0; \
378 			} else { \
379 				/* m_hi >= s_hi */ \
380 				d_hi = m_hi - s_hi; \
381 				d_lo = m_lo - s_lo; \
382 			} \
383 		} \
384 	} while (0)
385 
386 #define UPDATE_STAT64(s, t) \
387 	do { \
388 		DIFF_64(diff.hi, new->s##_hi, pstats->mac_stx[0].t##_hi, \
389 			diff.lo, new->s##_lo, pstats->mac_stx[0].t##_lo); \
390 		pstats->mac_stx[0].t##_hi = new->s##_hi; \
391 		pstats->mac_stx[0].t##_lo = new->s##_lo; \
392 		ADD_64(pstats->mac_stx[1].t##_hi, diff.hi, \
393 		       pstats->mac_stx[1].t##_lo, diff.lo); \
394 	} while (0)
395 
396 #define UPDATE_STAT64_NIG(s, t) \
397 	do { \
398 		DIFF_64(diff.hi, new->s##_hi, old->s##_hi, \
399 			diff.lo, new->s##_lo, old->s##_lo); \
400 		ADD_64(estats->t##_hi, diff.hi, \
401 		       estats->t##_lo, diff.lo); \
402 	} while (0)
403 
404 /* sum[hi:lo] += add */
405 #define ADD_EXTEND_64(s_hi, s_lo, a) \
406 	do { \
407 		s_lo += a; \
408 		s_hi += (s_lo < a) ? 1 : 0; \
409 	} while (0)
410 
411 #define ADD_STAT64(diff, t) \
412 	do { \
413 		ADD_64(pstats->mac_stx[1].t##_hi, new->diff##_hi, \
414 		       pstats->mac_stx[1].t##_lo, new->diff##_lo); \
415 	} while (0)
416 
417 #define UPDATE_EXTEND_STAT(s) \
418 	do { \
419 		ADD_EXTEND_64(pstats->mac_stx[1].s##_hi, \
420 			      pstats->mac_stx[1].s##_lo, \
421 			      new->s); \
422 	} while (0)
423 
424 #define UPDATE_EXTEND_TSTAT(s, t) \
425 	do { \
426 		diff = le32_to_cpu(tclient->s) - le32_to_cpu(old_tclient->s); \
427 		old_tclient->s = tclient->s; \
428 		ADD_EXTEND_64(qstats->t##_hi, qstats->t##_lo, diff); \
429 	} while (0)
430 
431 #define UPDATE_EXTEND_E_TSTAT(s, t) \
432 	do { \
433 		UPDATE_EXTEND_TSTAT(s, t); \
434 		ADD_EXTEND_64(estats->t##_hi, estats->t##_lo, diff); \
435 	} while (0)
436 
437 #define UPDATE_EXTEND_USTAT(s, t) \
438 	do { \
439 		diff = le32_to_cpu(uclient->s) - le32_to_cpu(old_uclient->s); \
440 		old_uclient->s = uclient->s; \
441 		ADD_EXTEND_64(qstats->t##_hi, qstats->t##_lo, diff); \
442 	} while (0)
443 
444 #define UPDATE_EXTEND_E_USTAT(s, t) \
445 	do { \
446 		UPDATE_EXTEND_USTAT(s, t); \
447 		ADD_EXTEND_64(estats->t##_hi, estats->t##_lo, diff); \
448 	} while (0)
449 
450 #define UPDATE_EXTEND_XSTAT(s, t) \
451 	do { \
452 		diff = le32_to_cpu(xclient->s) - le32_to_cpu(old_xclient->s); \
453 		old_xclient->s = xclient->s; \
454 		ADD_EXTEND_64(qstats->t##_hi, qstats->t##_lo, diff); \
455 	} while (0)
456 
457 #define UPDATE_QSTAT(s, t) \
458 	do { \
459 		qstats->t##_hi = qstats_old->t##_hi + le32_to_cpu(s.hi); \
460 		qstats->t##_lo = qstats_old->t##_lo + le32_to_cpu(s.lo); \
461 	} while (0)
462 
463 #define UPDATE_QSTAT_OLD(f) \
464 	do { \
465 		qstats_old->f = qstats->f; \
466 	} while (0)
467 
468 #define UPDATE_ESTAT_QSTAT_64(s) \
469 	do { \
470 		ADD_64(estats->s##_hi, qstats->s##_hi, \
471 		       estats->s##_lo, qstats->s##_lo); \
472 		SUB_64(estats->s##_hi, qstats_old->s##_hi_old, \
473 		       estats->s##_lo, qstats_old->s##_lo_old); \
474 		qstats_old->s##_hi_old = qstats->s##_hi; \
475 		qstats_old->s##_lo_old = qstats->s##_lo; \
476 	} while (0)
477 
478 #define UPDATE_ESTAT_QSTAT(s) \
479 	do { \
480 		estats->s += qstats->s; \
481 		estats->s -= qstats_old->s##_old; \
482 		qstats_old->s##_old = qstats->s; \
483 	} while (0)
484 
485 #define UPDATE_FSTAT_QSTAT(s) \
486 	do { \
487 		ADD_64(fstats->s##_hi, qstats->s##_hi, \
488 		       fstats->s##_lo, qstats->s##_lo); \
489 		SUB_64(fstats->s##_hi, qstats_old->s##_hi, \
490 		       fstats->s##_lo, qstats_old->s##_lo); \
491 		estats->s##_hi = fstats->s##_hi; \
492 		estats->s##_lo = fstats->s##_lo; \
493 		qstats_old->s##_hi = qstats->s##_hi; \
494 		qstats_old->s##_lo = qstats->s##_lo; \
495 	} while (0)
496 
497 #define UPDATE_FW_STAT(s) \
498 	do { \
499 		estats->s = le32_to_cpu(tport->s) + fwstats->s; \
500 	} while (0)
501 
502 #define UPDATE_FW_STAT_OLD(f) \
503 	do { \
504 		fwstats->f = estats->f; \
505 	} while (0)
506 
507 #define UPDATE_ESTAT(s, t) \
508 	do { \
509 		SUB_64(estats->s##_hi, estats_old->t##_hi, \
510 		       estats->s##_lo, estats_old->t##_lo); \
511 		ADD_64(estats->s##_hi, estats->t##_hi, \
512 		       estats->s##_lo, estats->t##_lo); \
513 		estats_old->t##_hi = estats->t##_hi; \
514 		estats_old->t##_lo = estats->t##_lo; \
515 	} while (0)
516 
517 /* minuend -= subtrahend */
518 #define SUB_64(m_hi, s_hi, m_lo, s_lo) \
519 	do { \
520 		DIFF_64(m_hi, m_hi, s_hi, m_lo, m_lo, s_lo); \
521 	} while (0)
522 
523 /* minuend[hi:lo] -= subtrahend */
524 #define SUB_EXTEND_64(m_hi, m_lo, s) \
525 	do { \
526 		SUB_64(m_hi, 0, m_lo, s); \
527 	} while (0)
528 
529 #define SUB_EXTEND_USTAT(s, t) \
530 	do { \
531 		diff = le32_to_cpu(uclient->s) - le32_to_cpu(old_uclient->s); \
532 		SUB_EXTEND_64(qstats->t##_hi, qstats->t##_lo, diff); \
533 	} while (0)
534 
535 
536 /* forward */
537 struct bnx2x;
538 
539 void bnx2x_stats_init(struct bnx2x *bp);
540 
541 void bnx2x_stats_handle(struct bnx2x *bp, enum bnx2x_stats_event event);
542 
543 /**
544  * bnx2x_save_statistics - save statistics when unloading.
545  *
546  * @bp:		driver handle
547  */
548 void bnx2x_save_statistics(struct bnx2x *bp);
549 
550 void bnx2x_afex_collect_stats(struct bnx2x *bp, void *void_afex_stats,
551 			      u32 stats_type);
552 #endif /* BNX2X_STATS_H */
553