root/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h

INCLUDED FROM

   1 /* bnx2x_stats.h: QLogic Everest network driver.
   2  *
   3  * Copyright (c) 2007-2013 Broadcom Corporation
   4  * Copyright (c) 2014 QLogic Corporation
   5  * All rights reserved
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation.
  10  *
  11  * Maintained by: Ariel Elior <ariel.elior@qlogic.com>
  12  * Written by: Eliezer Tamir
  13  * Based on code from Michael Chan's bnx2 driver
  14  * UDP CSUM errata workaround by Arik Gendelman
  15  * Slowpath and fastpath rework by Vladislav Zolotarov
  16  * Statistics and Link management by Yitchak Gertner
  17  *
  18  */
  19 #ifndef BNX2X_STATS_H
  20 #define BNX2X_STATS_H
  21 
  22 #include <linux/types.h>
  23 
  24 struct nig_stats {
  25         u32 brb_discard;
  26         u32 brb_packet;
  27         u32 brb_truncate;
  28         u32 flow_ctrl_discard;
  29         u32 flow_ctrl_octets;
  30         u32 flow_ctrl_packet;
  31         u32 mng_discard;
  32         u32 mng_octet_inp;
  33         u32 mng_octet_out;
  34         u32 mng_packet_inp;
  35         u32 mng_packet_out;
  36         u32 pbf_octets;
  37         u32 pbf_packet;
  38         u32 safc_inp;
  39         u32 egress_mac_pkt0_lo;
  40         u32 egress_mac_pkt0_hi;
  41         u32 egress_mac_pkt1_lo;
  42         u32 egress_mac_pkt1_hi;
  43 };
  44 
  45 enum bnx2x_stats_event {
  46         STATS_EVENT_PMF = 0,
  47         STATS_EVENT_LINK_UP,
  48         STATS_EVENT_UPDATE,
  49         STATS_EVENT_STOP,
  50         STATS_EVENT_MAX
  51 };
  52 
  53 enum bnx2x_stats_state {
  54         STATS_STATE_DISABLED = 0,
  55         STATS_STATE_ENABLED,
  56         STATS_STATE_MAX
  57 };
  58 
  59 struct bnx2x_eth_stats {
  60         u32 total_bytes_received_hi;
  61         u32 total_bytes_received_lo;
  62         u32 total_bytes_transmitted_hi;
  63         u32 total_bytes_transmitted_lo;
  64         u32 total_unicast_packets_received_hi;
  65         u32 total_unicast_packets_received_lo;
  66         u32 total_multicast_packets_received_hi;
  67         u32 total_multicast_packets_received_lo;
  68         u32 total_broadcast_packets_received_hi;
  69         u32 total_broadcast_packets_received_lo;
  70         u32 total_unicast_packets_transmitted_hi;
  71         u32 total_unicast_packets_transmitted_lo;
  72         u32 total_multicast_packets_transmitted_hi;
  73         u32 total_multicast_packets_transmitted_lo;
  74         u32 total_broadcast_packets_transmitted_hi;
  75         u32 total_broadcast_packets_transmitted_lo;
  76         u32 valid_bytes_received_hi;
  77         u32 valid_bytes_received_lo;
  78 
  79         u32 error_bytes_received_hi;
  80         u32 error_bytes_received_lo;
  81         u32 etherstatsoverrsizepkts_hi;
  82         u32 etherstatsoverrsizepkts_lo;
  83         u32 no_buff_discard_hi;
  84         u32 no_buff_discard_lo;
  85 
  86         u32 rx_stat_ifhcinbadoctets_hi;
  87         u32 rx_stat_ifhcinbadoctets_lo;
  88         u32 tx_stat_ifhcoutbadoctets_hi;
  89         u32 tx_stat_ifhcoutbadoctets_lo;
  90         u32 rx_stat_dot3statsfcserrors_hi;
  91         u32 rx_stat_dot3statsfcserrors_lo;
  92         u32 rx_stat_dot3statsalignmenterrors_hi;
  93         u32 rx_stat_dot3statsalignmenterrors_lo;
  94         u32 rx_stat_dot3statscarriersenseerrors_hi;
  95         u32 rx_stat_dot3statscarriersenseerrors_lo;
  96         u32 rx_stat_falsecarriererrors_hi;
  97         u32 rx_stat_falsecarriererrors_lo;
  98         u32 rx_stat_etherstatsundersizepkts_hi;
  99         u32 rx_stat_etherstatsundersizepkts_lo;
 100         u32 rx_stat_dot3statsframestoolong_hi;
 101         u32 rx_stat_dot3statsframestoolong_lo;
 102         u32 rx_stat_etherstatsfragments_hi;
 103         u32 rx_stat_etherstatsfragments_lo;
 104         u32 rx_stat_etherstatsjabbers_hi;
 105         u32 rx_stat_etherstatsjabbers_lo;
 106         u32 rx_stat_maccontrolframesreceived_hi;
 107         u32 rx_stat_maccontrolframesreceived_lo;
 108         u32 rx_stat_bmac_xpf_hi;
 109         u32 rx_stat_bmac_xpf_lo;
 110         u32 rx_stat_bmac_xcf_hi;
 111         u32 rx_stat_bmac_xcf_lo;
 112         u32 rx_stat_xoffstateentered_hi;
 113         u32 rx_stat_xoffstateentered_lo;
 114         u32 rx_stat_xonpauseframesreceived_hi;
 115         u32 rx_stat_xonpauseframesreceived_lo;
 116         u32 rx_stat_xoffpauseframesreceived_hi;
 117         u32 rx_stat_xoffpauseframesreceived_lo;
 118         u32 tx_stat_outxonsent_hi;
 119         u32 tx_stat_outxonsent_lo;
 120         u32 tx_stat_outxoffsent_hi;
 121         u32 tx_stat_outxoffsent_lo;
 122         u32 tx_stat_flowcontroldone_hi;
 123         u32 tx_stat_flowcontroldone_lo;
 124         u32 tx_stat_etherstatscollisions_hi;
 125         u32 tx_stat_etherstatscollisions_lo;
 126         u32 tx_stat_dot3statssinglecollisionframes_hi;
 127         u32 tx_stat_dot3statssinglecollisionframes_lo;
 128         u32 tx_stat_dot3statsmultiplecollisionframes_hi;
 129         u32 tx_stat_dot3statsmultiplecollisionframes_lo;
 130         u32 tx_stat_dot3statsdeferredtransmissions_hi;
 131         u32 tx_stat_dot3statsdeferredtransmissions_lo;
 132         u32 tx_stat_dot3statsexcessivecollisions_hi;
 133         u32 tx_stat_dot3statsexcessivecollisions_lo;
 134         u32 tx_stat_dot3statslatecollisions_hi;
 135         u32 tx_stat_dot3statslatecollisions_lo;
 136         u32 tx_stat_etherstatspkts64octets_hi;
 137         u32 tx_stat_etherstatspkts64octets_lo;
 138         u32 tx_stat_etherstatspkts65octetsto127octets_hi;
 139         u32 tx_stat_etherstatspkts65octetsto127octets_lo;
 140         u32 tx_stat_etherstatspkts128octetsto255octets_hi;
 141         u32 tx_stat_etherstatspkts128octetsto255octets_lo;
 142         u32 tx_stat_etherstatspkts256octetsto511octets_hi;
 143         u32 tx_stat_etherstatspkts256octetsto511octets_lo;
 144         u32 tx_stat_etherstatspkts512octetsto1023octets_hi;
 145         u32 tx_stat_etherstatspkts512octetsto1023octets_lo;
 146         u32 tx_stat_etherstatspkts1024octetsto1522octets_hi;
 147         u32 tx_stat_etherstatspkts1024octetsto1522octets_lo;
 148         u32 tx_stat_etherstatspktsover1522octets_hi;
 149         u32 tx_stat_etherstatspktsover1522octets_lo;
 150         u32 tx_stat_bmac_2047_hi;
 151         u32 tx_stat_bmac_2047_lo;
 152         u32 tx_stat_bmac_4095_hi;
 153         u32 tx_stat_bmac_4095_lo;
 154         u32 tx_stat_bmac_9216_hi;
 155         u32 tx_stat_bmac_9216_lo;
 156         u32 tx_stat_bmac_16383_hi;
 157         u32 tx_stat_bmac_16383_lo;
 158         u32 tx_stat_dot3statsinternalmactransmiterrors_hi;
 159         u32 tx_stat_dot3statsinternalmactransmiterrors_lo;
 160         u32 tx_stat_bmac_ufl_hi;
 161         u32 tx_stat_bmac_ufl_lo;
 162 
 163         u32 pause_frames_received_hi;
 164         u32 pause_frames_received_lo;
 165         u32 pause_frames_sent_hi;
 166         u32 pause_frames_sent_lo;
 167 
 168         u32 etherstatspkts1024octetsto1522octets_hi;
 169         u32 etherstatspkts1024octetsto1522octets_lo;
 170         u32 etherstatspktsover1522octets_hi;
 171         u32 etherstatspktsover1522octets_lo;
 172 
 173         u32 brb_drop_hi;
 174         u32 brb_drop_lo;
 175         u32 brb_truncate_hi;
 176         u32 brb_truncate_lo;
 177 
 178         u32 mac_filter_discard;
 179         u32 mf_tag_discard;
 180         u32 brb_truncate_discard;
 181         u32 mac_discard;
 182 
 183         u32 driver_xoff;
 184         u32 rx_err_discard_pkt;
 185         u32 rx_skb_alloc_failed;
 186         u32 hw_csum_err;
 187 
 188         u32 nig_timer_max;
 189 
 190         /* TPA */
 191         u32 total_tpa_aggregations_hi;
 192         u32 total_tpa_aggregations_lo;
 193         u32 total_tpa_aggregated_frames_hi;
 194         u32 total_tpa_aggregated_frames_lo;
 195         u32 total_tpa_bytes_hi;
 196         u32 total_tpa_bytes_lo;
 197 
 198         /* PFC */
 199         u32 pfc_frames_received_hi;
 200         u32 pfc_frames_received_lo;
 201         u32 pfc_frames_sent_hi;
 202         u32 pfc_frames_sent_lo;
 203 
 204         /* Recovery */
 205         u32 recoverable_error;
 206         u32 unrecoverable_error;
 207         u32 driver_filtered_tx_pkt;
 208         /* src: Clear-on-Read register; Will not survive PMF Migration */
 209         u32 eee_tx_lpi;
 210 
 211         /* PTP */
 212         u32 ptp_skip_tx_ts;
 213 };
 214 
 215 struct bnx2x_eth_q_stats {
 216         u32 total_unicast_bytes_received_hi;
 217         u32 total_unicast_bytes_received_lo;
 218         u32 total_broadcast_bytes_received_hi;
 219         u32 total_broadcast_bytes_received_lo;
 220         u32 total_multicast_bytes_received_hi;
 221         u32 total_multicast_bytes_received_lo;
 222         u32 total_bytes_received_hi;
 223         u32 total_bytes_received_lo;
 224         u32 total_unicast_bytes_transmitted_hi;
 225         u32 total_unicast_bytes_transmitted_lo;
 226         u32 total_broadcast_bytes_transmitted_hi;
 227         u32 total_broadcast_bytes_transmitted_lo;
 228         u32 total_multicast_bytes_transmitted_hi;
 229         u32 total_multicast_bytes_transmitted_lo;
 230         u32 total_bytes_transmitted_hi;
 231         u32 total_bytes_transmitted_lo;
 232         u32 total_unicast_packets_received_hi;
 233         u32 total_unicast_packets_received_lo;
 234         u32 total_multicast_packets_received_hi;
 235         u32 total_multicast_packets_received_lo;
 236         u32 total_broadcast_packets_received_hi;
 237         u32 total_broadcast_packets_received_lo;
 238         u32 total_unicast_packets_transmitted_hi;
 239         u32 total_unicast_packets_transmitted_lo;
 240         u32 total_multicast_packets_transmitted_hi;
 241         u32 total_multicast_packets_transmitted_lo;
 242         u32 total_broadcast_packets_transmitted_hi;
 243         u32 total_broadcast_packets_transmitted_lo;
 244         u32 valid_bytes_received_hi;
 245         u32 valid_bytes_received_lo;
 246 
 247         u32 etherstatsoverrsizepkts_hi;
 248         u32 etherstatsoverrsizepkts_lo;
 249         u32 no_buff_discard_hi;
 250         u32 no_buff_discard_lo;
 251 
 252         u32 driver_xoff;
 253         u32 rx_err_discard_pkt;
 254         u32 rx_skb_alloc_failed;
 255         u32 hw_csum_err;
 256 
 257         u32 total_packets_received_checksum_discarded_hi;
 258         u32 total_packets_received_checksum_discarded_lo;
 259         u32 total_packets_received_ttl0_discarded_hi;
 260         u32 total_packets_received_ttl0_discarded_lo;
 261         u32 total_transmitted_dropped_packets_error_hi;
 262         u32 total_transmitted_dropped_packets_error_lo;
 263 
 264         /* TPA */
 265         u32 total_tpa_aggregations_hi;
 266         u32 total_tpa_aggregations_lo;
 267         u32 total_tpa_aggregated_frames_hi;
 268         u32 total_tpa_aggregated_frames_lo;
 269         u32 total_tpa_bytes_hi;
 270         u32 total_tpa_bytes_lo;
 271         u32 driver_filtered_tx_pkt;
 272 };
 273 
 274 struct bnx2x_eth_stats_old {
 275         u32 rx_stat_dot3statsframestoolong_hi;
 276         u32 rx_stat_dot3statsframestoolong_lo;
 277 };
 278 
 279 struct bnx2x_eth_q_stats_old {
 280         /* Fields to perserve over fw reset*/
 281         u32 total_unicast_bytes_received_hi;
 282         u32 total_unicast_bytes_received_lo;
 283         u32 total_broadcast_bytes_received_hi;
 284         u32 total_broadcast_bytes_received_lo;
 285         u32 total_multicast_bytes_received_hi;
 286         u32 total_multicast_bytes_received_lo;
 287         u32 total_unicast_bytes_transmitted_hi;
 288         u32 total_unicast_bytes_transmitted_lo;
 289         u32 total_broadcast_bytes_transmitted_hi;
 290         u32 total_broadcast_bytes_transmitted_lo;
 291         u32 total_multicast_bytes_transmitted_hi;
 292         u32 total_multicast_bytes_transmitted_lo;
 293         u32 total_tpa_bytes_hi;
 294         u32 total_tpa_bytes_lo;
 295 
 296         /* Fields to perserve last of */
 297         u32 total_bytes_received_hi;
 298         u32 total_bytes_received_lo;
 299         u32 total_bytes_transmitted_hi;
 300         u32 total_bytes_transmitted_lo;
 301         u32 total_unicast_packets_received_hi;
 302         u32 total_unicast_packets_received_lo;
 303         u32 total_multicast_packets_received_hi;
 304         u32 total_multicast_packets_received_lo;
 305         u32 total_broadcast_packets_received_hi;
 306         u32 total_broadcast_packets_received_lo;
 307         u32 total_unicast_packets_transmitted_hi;
 308         u32 total_unicast_packets_transmitted_lo;
 309         u32 total_multicast_packets_transmitted_hi;
 310         u32 total_multicast_packets_transmitted_lo;
 311         u32 total_broadcast_packets_transmitted_hi;
 312         u32 total_broadcast_packets_transmitted_lo;
 313         u32 valid_bytes_received_hi;
 314         u32 valid_bytes_received_lo;
 315 
 316         u32 total_tpa_bytes_hi_old;
 317         u32 total_tpa_bytes_lo_old;
 318 
 319         u32 driver_xoff_old;
 320         u32 rx_err_discard_pkt_old;
 321         u32 rx_skb_alloc_failed_old;
 322         u32 hw_csum_err_old;
 323         u32 driver_filtered_tx_pkt_old;
 324 };
 325 
 326 struct bnx2x_net_stats_old {
 327          u32 rx_dropped;
 328 };
 329 
 330 struct bnx2x_fw_port_stats_old {
 331          u32 mac_filter_discard;
 332          u32 mf_tag_discard;
 333          u32 brb_truncate_discard;
 334          u32 mac_discard;
 335 };
 336 
 337 /****************************************************************************
 338 * Macros
 339 ****************************************************************************/
 340 
 341 /* sum[hi:lo] += add[hi:lo] */
 342 #define ADD_64(s_hi, a_hi, s_lo, a_lo) \
 343         do { \
 344                 s_lo += a_lo; \
 345                 s_hi += a_hi + ((s_lo < a_lo) ? 1 : 0); \
 346         } while (0)
 347 
 348 #define LE32_0 ((__force __le32) 0)
 349 #define LE16_0 ((__force __le16) 0)
 350 
 351 /* The _force is for cases where high value is 0 */
 352 #define ADD_64_LE(s_hi, a_hi_le, s_lo, a_lo_le) \
 353                 ADD_64(s_hi, le32_to_cpu(a_hi_le), \
 354                        s_lo, le32_to_cpu(a_lo_le))
 355 
 356 #define ADD_64_LE16(s_hi, a_hi_le, s_lo, a_lo_le) \
 357                 ADD_64(s_hi, le16_to_cpu(a_hi_le), \
 358                        s_lo, le16_to_cpu(a_lo_le))
 359 
 360 /* difference = minuend - subtrahend */
 361 #define DIFF_64(d_hi, m_hi, s_hi, d_lo, m_lo, s_lo) \
 362         do { \
 363                 if (m_lo < s_lo) { \
 364                         /* underflow */ \
 365                         d_hi = m_hi - s_hi; \
 366                         if (d_hi > 0) { \
 367                                 /* we can 'loan' 1 */ \
 368                                 d_hi--; \
 369                                 d_lo = m_lo + (UINT_MAX - s_lo) + 1; \
 370                         } else { \
 371                                 /* m_hi <= s_hi */ \
 372                                 d_hi = 0; \
 373                                 d_lo = 0; \
 374                         } \
 375                 } else { \
 376                         /* m_lo >= s_lo */ \
 377                         if (m_hi < s_hi) { \
 378                                 d_hi = 0; \
 379                                 d_lo = 0; \
 380                         } else { \
 381                                 /* m_hi >= s_hi */ \
 382                                 d_hi = m_hi - s_hi; \
 383                                 d_lo = m_lo - s_lo; \
 384                         } \
 385                 } \
 386         } while (0)
 387 
 388 #define UPDATE_STAT64(s, t) \
 389         do { \
 390                 DIFF_64(diff.hi, new->s##_hi, pstats->mac_stx[0].t##_hi, \
 391                         diff.lo, new->s##_lo, pstats->mac_stx[0].t##_lo); \
 392                 pstats->mac_stx[0].t##_hi = new->s##_hi; \
 393                 pstats->mac_stx[0].t##_lo = new->s##_lo; \
 394                 ADD_64(pstats->mac_stx[1].t##_hi, diff.hi, \
 395                        pstats->mac_stx[1].t##_lo, diff.lo); \
 396         } while (0)
 397 
 398 #define UPDATE_STAT64_NIG(s, t) \
 399         do { \
 400                 DIFF_64(diff.hi, new->s##_hi, old->s##_hi, \
 401                         diff.lo, new->s##_lo, old->s##_lo); \
 402                 ADD_64(estats->t##_hi, diff.hi, \
 403                        estats->t##_lo, diff.lo); \
 404         } while (0)
 405 
 406 /* sum[hi:lo] += add */
 407 #define ADD_EXTEND_64(s_hi, s_lo, a) \
 408         do { \
 409                 s_lo += a; \
 410                 s_hi += (s_lo < a) ? 1 : 0; \
 411         } while (0)
 412 
 413 #define ADD_STAT64(diff, t) \
 414         do { \
 415                 ADD_64(pstats->mac_stx[1].t##_hi, new->diff##_hi, \
 416                        pstats->mac_stx[1].t##_lo, new->diff##_lo); \
 417         } while (0)
 418 
 419 #define UPDATE_EXTEND_STAT(s) \
 420         do { \
 421                 ADD_EXTEND_64(pstats->mac_stx[1].s##_hi, \
 422                               pstats->mac_stx[1].s##_lo, \
 423                               new->s); \
 424         } while (0)
 425 
 426 #define UPDATE_EXTEND_TSTAT_X(s, t, size) \
 427         do { \
 428                 diff = le##size##_to_cpu(tclient->s) - \
 429                        le##size##_to_cpu(old_tclient->s); \
 430                 old_tclient->s = tclient->s; \
 431                 ADD_EXTEND_64(qstats->t##_hi, qstats->t##_lo, diff); \
 432         } while (0)
 433 
 434 #define UPDATE_EXTEND_TSTAT(s, t) UPDATE_EXTEND_TSTAT_X(s, t, 32)
 435 
 436 #define UPDATE_EXTEND_E_TSTAT(s, t, size) \
 437         do { \
 438                 UPDATE_EXTEND_TSTAT_X(s, t, size); \
 439                 ADD_EXTEND_64(estats->t##_hi, estats->t##_lo, diff); \
 440         } while (0)
 441 
 442 #define UPDATE_EXTEND_USTAT(s, t) \
 443         do { \
 444                 diff = le32_to_cpu(uclient->s) - le32_to_cpu(old_uclient->s); \
 445                 old_uclient->s = uclient->s; \
 446                 ADD_EXTEND_64(qstats->t##_hi, qstats->t##_lo, diff); \
 447         } while (0)
 448 
 449 #define UPDATE_EXTEND_E_USTAT(s, t) \
 450         do { \
 451                 UPDATE_EXTEND_USTAT(s, t); \
 452                 ADD_EXTEND_64(estats->t##_hi, estats->t##_lo, diff); \
 453         } while (0)
 454 
 455 #define UPDATE_EXTEND_XSTAT(s, t) \
 456         do { \
 457                 diff = le32_to_cpu(xclient->s) - le32_to_cpu(old_xclient->s); \
 458                 old_xclient->s = xclient->s; \
 459                 ADD_EXTEND_64(qstats->t##_hi, qstats->t##_lo, diff); \
 460         } while (0)
 461 
 462 #define UPDATE_QSTAT(s, t) \
 463         do { \
 464                 qstats->t##_lo = qstats_old->t##_lo + le32_to_cpu(s.lo); \
 465                 qstats->t##_hi = qstats_old->t##_hi + le32_to_cpu(s.hi) \
 466                         + ((qstats->t##_lo < qstats_old->t##_lo) ? 1 : 0); \
 467         } while (0)
 468 
 469 #define UPDATE_QSTAT_OLD(f) \
 470         do { \
 471                 qstats_old->f = qstats->f; \
 472         } while (0)
 473 
 474 #define UPDATE_ESTAT_QSTAT_64(s) \
 475         do { \
 476                 ADD_64(estats->s##_hi, qstats->s##_hi, \
 477                        estats->s##_lo, qstats->s##_lo); \
 478                 SUB_64(estats->s##_hi, qstats_old->s##_hi_old, \
 479                        estats->s##_lo, qstats_old->s##_lo_old); \
 480                 qstats_old->s##_hi_old = qstats->s##_hi; \
 481                 qstats_old->s##_lo_old = qstats->s##_lo; \
 482         } while (0)
 483 
 484 #define UPDATE_ESTAT_QSTAT(s) \
 485         do { \
 486                 estats->s += qstats->s; \
 487                 estats->s -= qstats_old->s##_old; \
 488                 qstats_old->s##_old = qstats->s; \
 489         } while (0)
 490 
 491 #define UPDATE_FSTAT_QSTAT(s) \
 492         do { \
 493                 ADD_64(fstats->s##_hi, qstats->s##_hi, \
 494                        fstats->s##_lo, qstats->s##_lo); \
 495                 SUB_64(fstats->s##_hi, qstats_old->s##_hi, \
 496                        fstats->s##_lo, qstats_old->s##_lo); \
 497                 estats->s##_hi = fstats->s##_hi; \
 498                 estats->s##_lo = fstats->s##_lo; \
 499                 qstats_old->s##_hi = qstats->s##_hi; \
 500                 qstats_old->s##_lo = qstats->s##_lo; \
 501         } while (0)
 502 
 503 #define UPDATE_FW_STAT(s) \
 504         do { \
 505                 estats->s = le32_to_cpu(tport->s) + fwstats->s; \
 506         } while (0)
 507 
 508 #define UPDATE_FW_STAT_OLD(f) \
 509         do { \
 510                 fwstats->f = estats->f; \
 511         } while (0)
 512 
 513 #define UPDATE_ESTAT(s, t) \
 514         do { \
 515                 SUB_64(estats->s##_hi, estats_old->t##_hi, \
 516                        estats->s##_lo, estats_old->t##_lo); \
 517                 ADD_64(estats->s##_hi, estats->t##_hi, \
 518                        estats->s##_lo, estats->t##_lo); \
 519                 estats_old->t##_hi = estats->t##_hi; \
 520                 estats_old->t##_lo = estats->t##_lo; \
 521         } while (0)
 522 
 523 /* minuend -= subtrahend */
 524 #define SUB_64(m_hi, s_hi, m_lo, s_lo) \
 525         do { \
 526                 DIFF_64(m_hi, m_hi, s_hi, m_lo, m_lo, s_lo); \
 527         } while (0)
 528 
 529 /* minuend[hi:lo] -= subtrahend */
 530 #define SUB_EXTEND_64(m_hi, m_lo, s) \
 531         do { \
 532                 SUB_64(m_hi, 0, m_lo, s); \
 533         } while (0)
 534 
 535 #define SUB_EXTEND_USTAT(s, t) \
 536         do { \
 537                 diff = le32_to_cpu(uclient->s) - le32_to_cpu(old_uclient->s); \
 538                 SUB_EXTEND_64(qstats->t##_hi, qstats->t##_lo, diff); \
 539         } while (0)
 540 
 541 /* forward */
 542 struct bnx2x;
 543 
 544 void bnx2x_memset_stats(struct bnx2x *bp);
 545 void bnx2x_stats_init(struct bnx2x *bp);
 546 void bnx2x_stats_handle(struct bnx2x *bp, enum bnx2x_stats_event event);
 547 int bnx2x_stats_safe_exec(struct bnx2x *bp,
 548                           void (func_to_exec)(void *cookie),
 549                           void *cookie);
 550 
 551 /**
 552  * bnx2x_save_statistics - save statistics when unloading.
 553  *
 554  * @bp:         driver handle
 555  */
 556 void bnx2x_save_statistics(struct bnx2x *bp);
 557 
 558 void bnx2x_afex_collect_stats(struct bnx2x *bp, void *void_afex_stats,
 559                               u32 stats_type);
 560 #endif /* BNX2X_STATS_H */