xref: /linux/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h (revision e0bf6c5ca2d3281f231c5f0c9bf145e9513644de)
1 /* bnx2x_stats.h: Broadcom Everest network driver.
2  *
3  * Copyright (c) 2007-2013 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: Ariel Elior <ariel.elior@qlogic.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 enum bnx2x_stats_event {
44 	STATS_EVENT_PMF = 0,
45 	STATS_EVENT_LINK_UP,
46 	STATS_EVENT_UPDATE,
47 	STATS_EVENT_STOP,
48 	STATS_EVENT_MAX
49 };
50 
51 enum bnx2x_stats_state {
52 	STATS_STATE_DISABLED = 0,
53 	STATS_STATE_ENABLED,
54 	STATS_STATE_MAX
55 };
56 
57 struct bnx2x_eth_stats {
58 	u32 total_bytes_received_hi;
59 	u32 total_bytes_received_lo;
60 	u32 total_bytes_transmitted_hi;
61 	u32 total_bytes_transmitted_lo;
62 	u32 total_unicast_packets_received_hi;
63 	u32 total_unicast_packets_received_lo;
64 	u32 total_multicast_packets_received_hi;
65 	u32 total_multicast_packets_received_lo;
66 	u32 total_broadcast_packets_received_hi;
67 	u32 total_broadcast_packets_received_lo;
68 	u32 total_unicast_packets_transmitted_hi;
69 	u32 total_unicast_packets_transmitted_lo;
70 	u32 total_multicast_packets_transmitted_hi;
71 	u32 total_multicast_packets_transmitted_lo;
72 	u32 total_broadcast_packets_transmitted_hi;
73 	u32 total_broadcast_packets_transmitted_lo;
74 	u32 valid_bytes_received_hi;
75 	u32 valid_bytes_received_lo;
76 
77 	u32 error_bytes_received_hi;
78 	u32 error_bytes_received_lo;
79 	u32 etherstatsoverrsizepkts_hi;
80 	u32 etherstatsoverrsizepkts_lo;
81 	u32 no_buff_discard_hi;
82 	u32 no_buff_discard_lo;
83 
84 	u32 rx_stat_ifhcinbadoctets_hi;
85 	u32 rx_stat_ifhcinbadoctets_lo;
86 	u32 tx_stat_ifhcoutbadoctets_hi;
87 	u32 tx_stat_ifhcoutbadoctets_lo;
88 	u32 rx_stat_dot3statsfcserrors_hi;
89 	u32 rx_stat_dot3statsfcserrors_lo;
90 	u32 rx_stat_dot3statsalignmenterrors_hi;
91 	u32 rx_stat_dot3statsalignmenterrors_lo;
92 	u32 rx_stat_dot3statscarriersenseerrors_hi;
93 	u32 rx_stat_dot3statscarriersenseerrors_lo;
94 	u32 rx_stat_falsecarriererrors_hi;
95 	u32 rx_stat_falsecarriererrors_lo;
96 	u32 rx_stat_etherstatsundersizepkts_hi;
97 	u32 rx_stat_etherstatsundersizepkts_lo;
98 	u32 rx_stat_dot3statsframestoolong_hi;
99 	u32 rx_stat_dot3statsframestoolong_lo;
100 	u32 rx_stat_etherstatsfragments_hi;
101 	u32 rx_stat_etherstatsfragments_lo;
102 	u32 rx_stat_etherstatsjabbers_hi;
103 	u32 rx_stat_etherstatsjabbers_lo;
104 	u32 rx_stat_maccontrolframesreceived_hi;
105 	u32 rx_stat_maccontrolframesreceived_lo;
106 	u32 rx_stat_bmac_xpf_hi;
107 	u32 rx_stat_bmac_xpf_lo;
108 	u32 rx_stat_bmac_xcf_hi;
109 	u32 rx_stat_bmac_xcf_lo;
110 	u32 rx_stat_xoffstateentered_hi;
111 	u32 rx_stat_xoffstateentered_lo;
112 	u32 rx_stat_xonpauseframesreceived_hi;
113 	u32 rx_stat_xonpauseframesreceived_lo;
114 	u32 rx_stat_xoffpauseframesreceived_hi;
115 	u32 rx_stat_xoffpauseframesreceived_lo;
116 	u32 tx_stat_outxonsent_hi;
117 	u32 tx_stat_outxonsent_lo;
118 	u32 tx_stat_outxoffsent_hi;
119 	u32 tx_stat_outxoffsent_lo;
120 	u32 tx_stat_flowcontroldone_hi;
121 	u32 tx_stat_flowcontroldone_lo;
122 	u32 tx_stat_etherstatscollisions_hi;
123 	u32 tx_stat_etherstatscollisions_lo;
124 	u32 tx_stat_dot3statssinglecollisionframes_hi;
125 	u32 tx_stat_dot3statssinglecollisionframes_lo;
126 	u32 tx_stat_dot3statsmultiplecollisionframes_hi;
127 	u32 tx_stat_dot3statsmultiplecollisionframes_lo;
128 	u32 tx_stat_dot3statsdeferredtransmissions_hi;
129 	u32 tx_stat_dot3statsdeferredtransmissions_lo;
130 	u32 tx_stat_dot3statsexcessivecollisions_hi;
131 	u32 tx_stat_dot3statsexcessivecollisions_lo;
132 	u32 tx_stat_dot3statslatecollisions_hi;
133 	u32 tx_stat_dot3statslatecollisions_lo;
134 	u32 tx_stat_etherstatspkts64octets_hi;
135 	u32 tx_stat_etherstatspkts64octets_lo;
136 	u32 tx_stat_etherstatspkts65octetsto127octets_hi;
137 	u32 tx_stat_etherstatspkts65octetsto127octets_lo;
138 	u32 tx_stat_etherstatspkts128octetsto255octets_hi;
139 	u32 tx_stat_etherstatspkts128octetsto255octets_lo;
140 	u32 tx_stat_etherstatspkts256octetsto511octets_hi;
141 	u32 tx_stat_etherstatspkts256octetsto511octets_lo;
142 	u32 tx_stat_etherstatspkts512octetsto1023octets_hi;
143 	u32 tx_stat_etherstatspkts512octetsto1023octets_lo;
144 	u32 tx_stat_etherstatspkts1024octetsto1522octets_hi;
145 	u32 tx_stat_etherstatspkts1024octetsto1522octets_lo;
146 	u32 tx_stat_etherstatspktsover1522octets_hi;
147 	u32 tx_stat_etherstatspktsover1522octets_lo;
148 	u32 tx_stat_bmac_2047_hi;
149 	u32 tx_stat_bmac_2047_lo;
150 	u32 tx_stat_bmac_4095_hi;
151 	u32 tx_stat_bmac_4095_lo;
152 	u32 tx_stat_bmac_9216_hi;
153 	u32 tx_stat_bmac_9216_lo;
154 	u32 tx_stat_bmac_16383_hi;
155 	u32 tx_stat_bmac_16383_lo;
156 	u32 tx_stat_dot3statsinternalmactransmiterrors_hi;
157 	u32 tx_stat_dot3statsinternalmactransmiterrors_lo;
158 	u32 tx_stat_bmac_ufl_hi;
159 	u32 tx_stat_bmac_ufl_lo;
160 
161 	u32 pause_frames_received_hi;
162 	u32 pause_frames_received_lo;
163 	u32 pause_frames_sent_hi;
164 	u32 pause_frames_sent_lo;
165 
166 	u32 etherstatspkts1024octetsto1522octets_hi;
167 	u32 etherstatspkts1024octetsto1522octets_lo;
168 	u32 etherstatspktsover1522octets_hi;
169 	u32 etherstatspktsover1522octets_lo;
170 
171 	u32 brb_drop_hi;
172 	u32 brb_drop_lo;
173 	u32 brb_truncate_hi;
174 	u32 brb_truncate_lo;
175 
176 	u32 mac_filter_discard;
177 	u32 mf_tag_discard;
178 	u32 brb_truncate_discard;
179 	u32 mac_discard;
180 
181 	u32 driver_xoff;
182 	u32 rx_err_discard_pkt;
183 	u32 rx_skb_alloc_failed;
184 	u32 hw_csum_err;
185 
186 	u32 nig_timer_max;
187 
188 	/* TPA */
189 	u32 total_tpa_aggregations_hi;
190 	u32 total_tpa_aggregations_lo;
191 	u32 total_tpa_aggregated_frames_hi;
192 	u32 total_tpa_aggregated_frames_lo;
193 	u32 total_tpa_bytes_hi;
194 	u32 total_tpa_bytes_lo;
195 
196 	/* PFC */
197 	u32 pfc_frames_received_hi;
198 	u32 pfc_frames_received_lo;
199 	u32 pfc_frames_sent_hi;
200 	u32 pfc_frames_sent_lo;
201 
202 	/* Recovery */
203 	u32 recoverable_error;
204 	u32 unrecoverable_error;
205 	u32 driver_filtered_tx_pkt;
206 	/* src: Clear-on-Read register; Will not survive PMF Migration */
207 	u32 eee_tx_lpi;
208 };
209 
210 struct bnx2x_eth_q_stats {
211 	u32 total_unicast_bytes_received_hi;
212 	u32 total_unicast_bytes_received_lo;
213 	u32 total_broadcast_bytes_received_hi;
214 	u32 total_broadcast_bytes_received_lo;
215 	u32 total_multicast_bytes_received_hi;
216 	u32 total_multicast_bytes_received_lo;
217 	u32 total_bytes_received_hi;
218 	u32 total_bytes_received_lo;
219 	u32 total_unicast_bytes_transmitted_hi;
220 	u32 total_unicast_bytes_transmitted_lo;
221 	u32 total_broadcast_bytes_transmitted_hi;
222 	u32 total_broadcast_bytes_transmitted_lo;
223 	u32 total_multicast_bytes_transmitted_hi;
224 	u32 total_multicast_bytes_transmitted_lo;
225 	u32 total_bytes_transmitted_hi;
226 	u32 total_bytes_transmitted_lo;
227 	u32 total_unicast_packets_received_hi;
228 	u32 total_unicast_packets_received_lo;
229 	u32 total_multicast_packets_received_hi;
230 	u32 total_multicast_packets_received_lo;
231 	u32 total_broadcast_packets_received_hi;
232 	u32 total_broadcast_packets_received_lo;
233 	u32 total_unicast_packets_transmitted_hi;
234 	u32 total_unicast_packets_transmitted_lo;
235 	u32 total_multicast_packets_transmitted_hi;
236 	u32 total_multicast_packets_transmitted_lo;
237 	u32 total_broadcast_packets_transmitted_hi;
238 	u32 total_broadcast_packets_transmitted_lo;
239 	u32 valid_bytes_received_hi;
240 	u32 valid_bytes_received_lo;
241 
242 	u32 etherstatsoverrsizepkts_hi;
243 	u32 etherstatsoverrsizepkts_lo;
244 	u32 no_buff_discard_hi;
245 	u32 no_buff_discard_lo;
246 
247 	u32 driver_xoff;
248 	u32 rx_err_discard_pkt;
249 	u32 rx_skb_alloc_failed;
250 	u32 hw_csum_err;
251 
252 	u32 total_packets_received_checksum_discarded_hi;
253 	u32 total_packets_received_checksum_discarded_lo;
254 	u32 total_packets_received_ttl0_discarded_hi;
255 	u32 total_packets_received_ttl0_discarded_lo;
256 	u32 total_transmitted_dropped_packets_error_hi;
257 	u32 total_transmitted_dropped_packets_error_lo;
258 
259 	/* TPA */
260 	u32 total_tpa_aggregations_hi;
261 	u32 total_tpa_aggregations_lo;
262 	u32 total_tpa_aggregated_frames_hi;
263 	u32 total_tpa_aggregated_frames_lo;
264 	u32 total_tpa_bytes_hi;
265 	u32 total_tpa_bytes_lo;
266 	u32 driver_filtered_tx_pkt;
267 };
268 
269 struct bnx2x_eth_stats_old {
270 	u32 rx_stat_dot3statsframestoolong_hi;
271 	u32 rx_stat_dot3statsframestoolong_lo;
272 };
273 
274 struct bnx2x_eth_q_stats_old {
275 	/* Fields to perserve over fw reset*/
276 	u32 total_unicast_bytes_received_hi;
277 	u32 total_unicast_bytes_received_lo;
278 	u32 total_broadcast_bytes_received_hi;
279 	u32 total_broadcast_bytes_received_lo;
280 	u32 total_multicast_bytes_received_hi;
281 	u32 total_multicast_bytes_received_lo;
282 	u32 total_unicast_bytes_transmitted_hi;
283 	u32 total_unicast_bytes_transmitted_lo;
284 	u32 total_broadcast_bytes_transmitted_hi;
285 	u32 total_broadcast_bytes_transmitted_lo;
286 	u32 total_multicast_bytes_transmitted_hi;
287 	u32 total_multicast_bytes_transmitted_lo;
288 	u32 total_tpa_bytes_hi;
289 	u32 total_tpa_bytes_lo;
290 
291 	/* Fields to perserve last of */
292 	u32 total_bytes_received_hi;
293 	u32 total_bytes_received_lo;
294 	u32 total_bytes_transmitted_hi;
295 	u32 total_bytes_transmitted_lo;
296 	u32 total_unicast_packets_received_hi;
297 	u32 total_unicast_packets_received_lo;
298 	u32 total_multicast_packets_received_hi;
299 	u32 total_multicast_packets_received_lo;
300 	u32 total_broadcast_packets_received_hi;
301 	u32 total_broadcast_packets_received_lo;
302 	u32 total_unicast_packets_transmitted_hi;
303 	u32 total_unicast_packets_transmitted_lo;
304 	u32 total_multicast_packets_transmitted_hi;
305 	u32 total_multicast_packets_transmitted_lo;
306 	u32 total_broadcast_packets_transmitted_hi;
307 	u32 total_broadcast_packets_transmitted_lo;
308 	u32 valid_bytes_received_hi;
309 	u32 valid_bytes_received_lo;
310 
311 	u32 total_tpa_bytes_hi_old;
312 	u32 total_tpa_bytes_lo_old;
313 
314 	u32 driver_xoff_old;
315 	u32 rx_err_discard_pkt_old;
316 	u32 rx_skb_alloc_failed_old;
317 	u32 hw_csum_err_old;
318 	u32 driver_filtered_tx_pkt_old;
319 };
320 
321 struct bnx2x_net_stats_old {
322 	 u32 rx_dropped;
323 };
324 
325 struct bnx2x_fw_port_stats_old {
326 	 u32 mac_filter_discard;
327 	 u32 mf_tag_discard;
328 	 u32 brb_truncate_discard;
329 	 u32 mac_discard;
330 };
331 
332 /****************************************************************************
333 * Macros
334 ****************************************************************************/
335 
336 /* sum[hi:lo] += add[hi:lo] */
337 #define ADD_64(s_hi, a_hi, s_lo, a_lo) \
338 	do { \
339 		s_lo += a_lo; \
340 		s_hi += a_hi + ((s_lo < a_lo) ? 1 : 0); \
341 	} while (0)
342 
343 #define LE32_0 ((__force __le32) 0)
344 #define LE16_0 ((__force __le16) 0)
345 
346 /* The _force is for cases where high value is 0 */
347 #define ADD_64_LE(s_hi, a_hi_le, s_lo, a_lo_le) \
348 		ADD_64(s_hi, le32_to_cpu(a_hi_le), \
349 		       s_lo, le32_to_cpu(a_lo_le))
350 
351 #define ADD_64_LE16(s_hi, a_hi_le, s_lo, a_lo_le) \
352 		ADD_64(s_hi, le16_to_cpu(a_hi_le), \
353 		       s_lo, le16_to_cpu(a_lo_le))
354 
355 /* difference = minuend - subtrahend */
356 #define DIFF_64(d_hi, m_hi, s_hi, d_lo, m_lo, s_lo) \
357 	do { \
358 		if (m_lo < s_lo) { \
359 			/* underflow */ \
360 			d_hi = m_hi - s_hi; \
361 			if (d_hi > 0) { \
362 				/* we can 'loan' 1 */ \
363 				d_hi--; \
364 				d_lo = m_lo + (UINT_MAX - s_lo) + 1; \
365 			} else { \
366 				/* m_hi <= s_hi */ \
367 				d_hi = 0; \
368 				d_lo = 0; \
369 			} \
370 		} else { \
371 			/* m_lo >= s_lo */ \
372 			if (m_hi < s_hi) { \
373 				d_hi = 0; \
374 				d_lo = 0; \
375 			} else { \
376 				/* m_hi >= s_hi */ \
377 				d_hi = m_hi - s_hi; \
378 				d_lo = m_lo - s_lo; \
379 			} \
380 		} \
381 	} while (0)
382 
383 #define UPDATE_STAT64(s, t) \
384 	do { \
385 		DIFF_64(diff.hi, new->s##_hi, pstats->mac_stx[0].t##_hi, \
386 			diff.lo, new->s##_lo, pstats->mac_stx[0].t##_lo); \
387 		pstats->mac_stx[0].t##_hi = new->s##_hi; \
388 		pstats->mac_stx[0].t##_lo = new->s##_lo; \
389 		ADD_64(pstats->mac_stx[1].t##_hi, diff.hi, \
390 		       pstats->mac_stx[1].t##_lo, diff.lo); \
391 	} while (0)
392 
393 #define UPDATE_STAT64_NIG(s, t) \
394 	do { \
395 		DIFF_64(diff.hi, new->s##_hi, old->s##_hi, \
396 			diff.lo, new->s##_lo, old->s##_lo); \
397 		ADD_64(estats->t##_hi, diff.hi, \
398 		       estats->t##_lo, diff.lo); \
399 	} while (0)
400 
401 /* sum[hi:lo] += add */
402 #define ADD_EXTEND_64(s_hi, s_lo, a) \
403 	do { \
404 		s_lo += a; \
405 		s_hi += (s_lo < a) ? 1 : 0; \
406 	} while (0)
407 
408 #define ADD_STAT64(diff, t) \
409 	do { \
410 		ADD_64(pstats->mac_stx[1].t##_hi, new->diff##_hi, \
411 		       pstats->mac_stx[1].t##_lo, new->diff##_lo); \
412 	} while (0)
413 
414 #define UPDATE_EXTEND_STAT(s) \
415 	do { \
416 		ADD_EXTEND_64(pstats->mac_stx[1].s##_hi, \
417 			      pstats->mac_stx[1].s##_lo, \
418 			      new->s); \
419 	} while (0)
420 
421 #define UPDATE_EXTEND_TSTAT_X(s, t, size) \
422 	do { \
423 		diff = le##size##_to_cpu(tclient->s) - \
424 		       le##size##_to_cpu(old_tclient->s); \
425 		old_tclient->s = tclient->s; \
426 		ADD_EXTEND_64(qstats->t##_hi, qstats->t##_lo, diff); \
427 	} while (0)
428 
429 #define UPDATE_EXTEND_TSTAT(s, t) UPDATE_EXTEND_TSTAT_X(s, t, 32)
430 
431 #define UPDATE_EXTEND_E_TSTAT(s, t, size) \
432 	do { \
433 		UPDATE_EXTEND_TSTAT_X(s, t, size); \
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##_lo = qstats_old->t##_lo + le32_to_cpu(s.lo); \
460 		qstats->t##_hi = qstats_old->t##_hi + le32_to_cpu(s.hi) \
461 			+ ((qstats->t##_lo < qstats_old->t##_lo) ? 1 : 0); \
462 	} while (0)
463 
464 #define UPDATE_QSTAT_OLD(f) \
465 	do { \
466 		qstats_old->f = qstats->f; \
467 	} while (0)
468 
469 #define UPDATE_ESTAT_QSTAT_64(s) \
470 	do { \
471 		ADD_64(estats->s##_hi, qstats->s##_hi, \
472 		       estats->s##_lo, qstats->s##_lo); \
473 		SUB_64(estats->s##_hi, qstats_old->s##_hi_old, \
474 		       estats->s##_lo, qstats_old->s##_lo_old); \
475 		qstats_old->s##_hi_old = qstats->s##_hi; \
476 		qstats_old->s##_lo_old = qstats->s##_lo; \
477 	} while (0)
478 
479 #define UPDATE_ESTAT_QSTAT(s) \
480 	do { \
481 		estats->s += qstats->s; \
482 		estats->s -= qstats_old->s##_old; \
483 		qstats_old->s##_old = qstats->s; \
484 	} while (0)
485 
486 #define UPDATE_FSTAT_QSTAT(s) \
487 	do { \
488 		ADD_64(fstats->s##_hi, qstats->s##_hi, \
489 		       fstats->s##_lo, qstats->s##_lo); \
490 		SUB_64(fstats->s##_hi, qstats_old->s##_hi, \
491 		       fstats->s##_lo, qstats_old->s##_lo); \
492 		estats->s##_hi = fstats->s##_hi; \
493 		estats->s##_lo = fstats->s##_lo; \
494 		qstats_old->s##_hi = qstats->s##_hi; \
495 		qstats_old->s##_lo = qstats->s##_lo; \
496 	} while (0)
497 
498 #define UPDATE_FW_STAT(s) \
499 	do { \
500 		estats->s = le32_to_cpu(tport->s) + fwstats->s; \
501 	} while (0)
502 
503 #define UPDATE_FW_STAT_OLD(f) \
504 	do { \
505 		fwstats->f = estats->f; \
506 	} while (0)
507 
508 #define UPDATE_ESTAT(s, t) \
509 	do { \
510 		SUB_64(estats->s##_hi, estats_old->t##_hi, \
511 		       estats->s##_lo, estats_old->t##_lo); \
512 		ADD_64(estats->s##_hi, estats->t##_hi, \
513 		       estats->s##_lo, estats->t##_lo); \
514 		estats_old->t##_hi = estats->t##_hi; \
515 		estats_old->t##_lo = estats->t##_lo; \
516 	} while (0)
517 
518 /* minuend -= subtrahend */
519 #define SUB_64(m_hi, s_hi, m_lo, s_lo) \
520 	do { \
521 		DIFF_64(m_hi, m_hi, s_hi, m_lo, m_lo, s_lo); \
522 	} while (0)
523 
524 /* minuend[hi:lo] -= subtrahend */
525 #define SUB_EXTEND_64(m_hi, m_lo, s) \
526 	do { \
527 		SUB_64(m_hi, 0, m_lo, s); \
528 	} while (0)
529 
530 #define SUB_EXTEND_USTAT(s, t) \
531 	do { \
532 		diff = le32_to_cpu(uclient->s) - le32_to_cpu(old_uclient->s); \
533 		SUB_EXTEND_64(qstats->t##_hi, qstats->t##_lo, diff); \
534 	} while (0)
535 
536 /* forward */
537 struct bnx2x;
538 
539 void bnx2x_memset_stats(struct bnx2x *bp);
540 void bnx2x_stats_init(struct bnx2x *bp);
541 void bnx2x_stats_handle(struct bnx2x *bp, enum bnx2x_stats_event event);
542 int bnx2x_stats_safe_exec(struct bnx2x *bp,
543 			  void (func_to_exec)(void *cookie),
544 			  void *cookie);
545 
546 /**
547  * bnx2x_save_statistics - save statistics when unloading.
548  *
549  * @bp:		driver handle
550  */
551 void bnx2x_save_statistics(struct bnx2x *bp);
552 
553 void bnx2x_afex_collect_stats(struct bnx2x *bp, void *void_afex_stats,
554 			      u32 stats_type);
555 #endif /* BNX2X_STATS_H */
556