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

   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: 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 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 void 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 */