net/rxrpc/proc.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /* /proc/net/ support for AF_RXRPC
   3  *
   4  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
   5  * Written by David Howells ([email protected])
   6  */
   7
   8 #include <linux/module.h>
   9 #include <net/sock.h>
  10 #include <net/af_rxrpc.h>
  11 #include "ar-internal.h"
  12
  13 static const char *const rxrpc_conn_states[RXRPC_CONN__NR_STATES] = {
  14         [RXRPC_CONN_UNUSED]                     = "Unused  ",
  15         [RXRPC_CONN_CLIENT_UNSECURED]           = "ClUnsec ",
  16         [RXRPC_CONN_CLIENT]                     = "Client  ",
  17         [RXRPC_CONN_SERVICE_PREALLOC]           = "SvPrealc",
  18         [RXRPC_CONN_SERVICE_UNSECURED]          = "SvUnsec ",
  19         [RXRPC_CONN_SERVICE_CHALLENGING]        = "SvChall ",
  20         [RXRPC_CONN_SERVICE]                    = "SvSecure",
  21         [RXRPC_CONN_ABORTED]                    = "Aborted ",
  22 };
  23
  24 /*
  25  * generate a list of extant and dead calls in /proc/net/rxrpc_calls
  26  */
  27 static void *rxrpc_call_seq_start(struct seq_file *seq, loff_t *_pos)
  28         __acquires(rcu)
  29 {
  30         struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
  31
  32         rcu_read_lock();
  33         return seq_list_start_head_rcu(&rxnet->calls, *_pos);
  34 }
  35
  36 static void *rxrpc_call_seq_next(struct seq_file *seq, void *v, loff_t *pos)
  37 {
  38         struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
  39
  40         return seq_list_next_rcu(v, &rxnet->calls, pos);
  41 }
  42
  43 static void rxrpc_call_seq_stop(struct seq_file *seq, void *v)
  44         __releases(rcu)
  45 {
  46         rcu_read_unlock();
  47 }
  48
  49 static int rxrpc_call_seq_show(struct seq_file *seq, void *v)
  50 {
  51         struct rxrpc_local *local;
  52         struct rxrpc_call *call;
  53         struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
  54         enum rxrpc_call_state state;
  55         unsigned long timeout = 0;
  56         rxrpc_seq_t acks_hard_ack;
  57         char lbuff[50], rbuff[50];
  58
  59         if (v == &rxnet->calls) {
  60                 seq_puts(seq,
  61                          "Proto Local                                          "
  62                          " Remote                                         "
  63                          " SvID ConnID   CallID   End Use State    Abort   "
  64                          " DebugId  TxSeq    TW RxSeq    RW RxSerial CW RxTimo\n");
  65                 return 0;
  66         }
  67
  68         call = list_entry(v, struct rxrpc_call, link);
  69
  70         local = call->local;
  71         if (local)
  72                 sprintf(lbuff, "%pISpc", &local->srx.transport);
  73         else
  74                 strcpy(lbuff, "no_local");
  75
  76         sprintf(rbuff, "%pISpc", &call->dest_srx.transport);
  77
  78         state = rxrpc_call_state(call);
  79         if (state != RXRPC_CALL_SERVER_PREALLOC) {
  80                 timeout = READ_ONCE(call->expect_rx_by);
  81                 timeout -= jiffies;
  82         }
  83
  84         acks_hard_ack = READ_ONCE(call->acks_hard_ack);
  85         seq_printf(seq,
  86                    "UDP   %-47.47s %-47.47s %4x %08x %08x %s %3u"
  87                    " %-8.8s %08x %08x %08x %02x %08x %02x %08x %02x %06lx\n",
  88                    lbuff,
  89                    rbuff,
  90                    call->dest_srx.srx_service,
  91                    call->cid,
  92                    call->call_id,
  93                    rxrpc_is_service_call(call) ? "Svc" : "Clt",
  94                    refcount_read(&call->ref),
  95                    rxrpc_call_states[state],
  96                    call->abort_code,
  97                    call->debug_id,
  98                    acks_hard_ack, READ_ONCE(call->tx_top) - acks_hard_ack,
  99                    call->ackr_window, call->ackr_wtop - call->ackr_window,
 100                    call->rx_serial,
 101                    call->cong_cwnd,
 102                    timeout);
 103
 104         return 0;
 105 }
 106
 107 const struct seq_operations rxrpc_call_seq_ops = {
 108         .start  = rxrpc_call_seq_start,
 109         .next   = rxrpc_call_seq_next,
 110         .stop   = rxrpc_call_seq_stop,
 111         .show   = rxrpc_call_seq_show,
 112 };
 113
 114 /*
 115  * generate a list of extant virtual connections in /proc/net/rxrpc_conns
 116  */
 117 static void *rxrpc_connection_seq_start(struct seq_file *seq, loff_t *_pos)
 118         __acquires(rxnet->conn_lock)
 119 {
 120         struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
 121
 122         read_lock(&rxnet->conn_lock);
 123         return seq_list_start_head(&rxnet->conn_proc_list, *_pos);
 124 }
 125
 126 static void *rxrpc_connection_seq_next(struct seq_file *seq, void *v,
 127                                        loff_t *pos)
 128 {
 129         struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
 130
 131         return seq_list_next(v, &rxnet->conn_proc_list, pos);
 132 }
 133
 134 static void rxrpc_connection_seq_stop(struct seq_file *seq, void *v)
 135         __releases(rxnet->conn_lock)
 136 {
 137         struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
 138
 139         read_unlock(&rxnet->conn_lock);
 140 }
 141
 142 static int rxrpc_connection_seq_show(struct seq_file *seq, void *v)
 143 {
 144         struct rxrpc_connection *conn;
 145         struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
 146         const char *state;
 147         char lbuff[50], rbuff[50];
 148
 149         if (v == &rxnet->conn_proc_list) {
 150                 seq_puts(seq,
 151                          "Proto Local                                          "
 152                          " Remote                                         "
 153                          " SvID ConnID   End Ref Act State    Key     "
 154                          " Serial   ISerial  CallId0  CallId1  CallId2  CallId3\n"
 155                          );
 156                 return 0;
 157         }
 158
 159         conn = list_entry(v, struct rxrpc_connection, proc_link);
 160         if (conn->state == RXRPC_CONN_SERVICE_PREALLOC) {
 161                 strcpy(lbuff, "no_local");
 162                 strcpy(rbuff, "no_connection");
 163                 goto print;
 164         }
 165
 166         sprintf(lbuff, "%pISpc", &conn->local->srx.transport);
 167         sprintf(rbuff, "%pISpc", &conn->peer->srx.transport);
 168 print:
 169         state = rxrpc_is_conn_aborted(conn) ?
 170                 rxrpc_call_completions[conn->completion] :
 171                 rxrpc_conn_states[conn->state];
 172         seq_printf(seq,
 173                    "UDP   %-47.47s %-47.47s %4x %08x %s %3u %3d"
 174                    " %s %08x %08x %08x %08x %08x %08x %08x\n",
 175                    lbuff,
 176                    rbuff,
 177                    conn->service_id,
 178                    conn->proto.cid,
 179                    rxrpc_conn_is_service(conn) ? "Svc" : "Clt",
 180                    refcount_read(&conn->ref),
 181                    atomic_read(&conn->active),
 182                    state,
 183                    key_serial(conn->key),
 184                    conn->tx_serial,
 185                    conn->hi_serial,
 186                    conn->channels[0].call_id,
 187                    conn->channels[1].call_id,
 188                    conn->channels[2].call_id,
 189                    conn->channels[3].call_id);
 190
 191         return 0;
 192 }
 193
 194 const struct seq_operations rxrpc_connection_seq_ops = {
 195         .start  = rxrpc_connection_seq_start,
 196         .next   = rxrpc_connection_seq_next,
 197         .stop   = rxrpc_connection_seq_stop,
 198         .show   = rxrpc_connection_seq_show,
 199 };
 200
 201 /*
 202  * generate a list of extant virtual bundles in /proc/net/rxrpc/bundles
 203  */
 204 static void *rxrpc_bundle_seq_start(struct seq_file *seq, loff_t *_pos)
 205         __acquires(rxnet->conn_lock)
 206 {
 207         struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
 208
 209         read_lock(&rxnet->conn_lock);
 210         return seq_list_start_head(&rxnet->bundle_proc_list, *_pos);
 211 }
 212
 213 static void *rxrpc_bundle_seq_next(struct seq_file *seq, void *v,
 214                                        loff_t *pos)
 215 {
 216         struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
 217
 218         return seq_list_next(v, &rxnet->bundle_proc_list, pos);
 219 }
 220
 221 static void rxrpc_bundle_seq_stop(struct seq_file *seq, void *v)
 222         __releases(rxnet->conn_lock)
 223 {
 224         struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
 225
 226         read_unlock(&rxnet->conn_lock);
 227 }
 228
 229 static int rxrpc_bundle_seq_show(struct seq_file *seq, void *v)
 230 {
 231         struct rxrpc_bundle *bundle;
 232         struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
 233         char lbuff[50], rbuff[50];
 234
 235         if (v == &rxnet->bundle_proc_list) {
 236                 seq_puts(seq,
 237                          "Proto Local                                          "
 238                          " Remote                                         "
 239                          " SvID Ref Act Flg Key      |"
 240                          " Bundle   Conn_0   Conn_1   Conn_2   Conn_3\n"
 241                          );
 242                 return 0;
 243         }
 244
 245         bundle = list_entry(v, struct rxrpc_bundle, proc_link);
 246
 247         sprintf(lbuff, "%pISpc", &bundle->local->srx.transport);
 248         sprintf(rbuff, "%pISpc", &bundle->peer->srx.transport);
 249         seq_printf(seq,
 250                    "UDP   %-47.47s %-47.47s %4x %3u %3d"
 251                    " %c%c%c %08x | %08x %08x %08x %08x %08x\n",
 252                    lbuff,
 253                    rbuff,
 254                    bundle->service_id,
 255                    refcount_read(&bundle->ref),
 256                    atomic_read(&bundle->active),
 257                    bundle->try_upgrade ? 'U' : '-',
 258                    bundle->exclusive ? 'e' : '-',
 259                    bundle->upgrade ? 'u' : '-',
 260                    key_serial(bundle->key),
 261                    bundle->debug_id,
 262                    bundle->conn_ids[0],
 263                    bundle->conn_ids[1],
 264                    bundle->conn_ids[2],
 265                    bundle->conn_ids[3]);
 266
 267         return 0;
 268 }
 269
 270 const struct seq_operations rxrpc_bundle_seq_ops = {
 271         .start  = rxrpc_bundle_seq_start,
 272         .next   = rxrpc_bundle_seq_next,
 273         .stop   = rxrpc_bundle_seq_stop,
 274         .show   = rxrpc_bundle_seq_show,
 275 };
 276
 277 /*
 278  * generate a list of extant virtual peers in /proc/net/rxrpc/peers
 279  */
 280 static int rxrpc_peer_seq_show(struct seq_file *seq, void *v)
 281 {
 282         struct rxrpc_peer *peer;
 283         time64_t now;
 284         char lbuff[50], rbuff[50];
 285
 286         if (v == SEQ_START_TOKEN) {
 287                 seq_puts(seq,
 288                          "Proto Local                                          "
 289                          " Remote                                         "
 290                          " Use SST   MTU LastUse      RTT      RTO\n"
 291                          );
 292                 return 0;
 293         }
 294
 295         peer = list_entry(v, struct rxrpc_peer, hash_link);
 296
 297         sprintf(lbuff, "%pISpc", &peer->local->srx.transport);
 298
 299         sprintf(rbuff, "%pISpc", &peer->srx.transport);
 300
 301         now = ktime_get_seconds();
 302         seq_printf(seq,
 303                    "UDP   %-47.47s %-47.47s %3u"
 304                    " %3u %5u %6llus %8u %8u\n",
 305                    lbuff,
 306                    rbuff,
 307                    refcount_read(&peer->ref),
 308                    peer->cong_ssthresh,
 309                    peer->mtu,
 310                    now - peer->last_tx_at,
 311                    peer->srtt_us >> 3,
 312                    jiffies_to_usecs(peer->rto_j));
 313
 314         return 0;
 315 }
 316
 317 static void *rxrpc_peer_seq_start(struct seq_file *seq, loff_t *_pos)
 318         __acquires(rcu)
 319 {
 320         struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
 321         unsigned int bucket, n;
 322         unsigned int shift = 32 - HASH_BITS(rxnet->peer_hash);
 323         void *p;
 324
 325         rcu_read_lock();
 326
 327         if (*_pos >= UINT_MAX)
 328                 return NULL;
 329
 330         n = *_pos & ((1U << shift) - 1);
 331         bucket = *_pos >> shift;
 332         for (;;) {
 333                 if (bucket >= HASH_SIZE(rxnet->peer_hash)) {
 334                         *_pos = UINT_MAX;
 335                         return NULL;
 336                 }
 337                 if (n == 0) {
 338                         if (bucket == 0)
 339                                 return SEQ_START_TOKEN;
 340                         *_pos += 1;
 341                         n++;
 342                 }
 343
 344                 p = seq_hlist_start_rcu(&rxnet->peer_hash[bucket], n - 1);
 345                 if (p)
 346                         return p;
 347                 bucket++;
 348                 n = 1;
 349                 *_pos = (bucket << shift) | n;
 350         }
 351 }
 352
 353 static void *rxrpc_peer_seq_next(struct seq_file *seq, void *v, loff_t *_pos)
 354 {
 355         struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
 356         unsigned int bucket, n;
 357         unsigned int shift = 32 - HASH_BITS(rxnet->peer_hash);
 358         void *p;
 359
 360         if (*_pos >= UINT_MAX)
 361                 return NULL;
 362
 363         bucket = *_pos >> shift;
 364
 365         p = seq_hlist_next_rcu(v, &rxnet->peer_hash[bucket], _pos);
 366         if (p)
 367                 return p;
 368
 369         for (;;) {
 370                 bucket++;
 371                 n = 1;
 372                 *_pos = (bucket << shift) | n;
 373
 374                 if (bucket >= HASH_SIZE(rxnet->peer_hash)) {
 375                         *_pos = UINT_MAX;
 376                         return NULL;
 377                 }
 378                 if (n == 0) {
 379                         *_pos += 1;
 380                         n++;
 381                 }
 382
 383                 p = seq_hlist_start_rcu(&rxnet->peer_hash[bucket], n - 1);
 384                 if (p)
 385                         return p;
 386         }
 387 }
 388
 389 static void rxrpc_peer_seq_stop(struct seq_file *seq, void *v)
 390         __releases(rcu)
 391 {
 392         rcu_read_unlock();
 393 }
 394
 395
 396 const struct seq_operations rxrpc_peer_seq_ops = {
 397         .start  = rxrpc_peer_seq_start,
 398         .next   = rxrpc_peer_seq_next,
 399         .stop   = rxrpc_peer_seq_stop,
 400         .show   = rxrpc_peer_seq_show,
 401 };
 402
 403 /*
 404  * Generate a list of extant virtual local endpoints in /proc/net/rxrpc/locals
 405  */
 406 static int rxrpc_local_seq_show(struct seq_file *seq, void *v)
 407 {
 408         struct rxrpc_local *local;
 409         char lbuff[50];
 410
 411         if (v == SEQ_START_TOKEN) {
 412                 seq_puts(seq,
 413                          "Proto Local                                          "
 414                          " Use Act RxQ\n");
 415                 return 0;
 416         }
 417
 418         local = hlist_entry(v, struct rxrpc_local, link);
 419
 420         sprintf(lbuff, "%pISpc", &local->srx.transport);
 421
 422         seq_printf(seq,
 423                    "UDP   %-47.47s %3u %3u %3u\n",
 424                    lbuff,
 425                    refcount_read(&local->ref),
 426                    atomic_read(&local->active_users),
 427                    local->rx_queue.qlen);
 428
 429         return 0;
 430 }
 431
 432 static void *rxrpc_local_seq_start(struct seq_file *seq, loff_t *_pos)
 433         __acquires(rcu)
 434 {
 435         struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
 436         unsigned int n;
 437
 438         rcu_read_lock();
 439
 440         if (*_pos >= UINT_MAX)
 441                 return NULL;
 442
 443         n = *_pos;
 444         if (n == 0)
 445                 return SEQ_START_TOKEN;
 446
 447         return seq_hlist_start_rcu(&rxnet->local_endpoints, n - 1);
 448 }
 449
 450 static void *rxrpc_local_seq_next(struct seq_file *seq, void *v, loff_t *_pos)
 451 {
 452         struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
 453
 454         if (*_pos >= UINT_MAX)
 455                 return NULL;
 456
 457         return seq_hlist_next_rcu(v, &rxnet->local_endpoints, _pos);
 458 }
 459
 460 static void rxrpc_local_seq_stop(struct seq_file *seq, void *v)
 461         __releases(rcu)
 462 {
 463         rcu_read_unlock();
 464 }
 465
 466 const struct seq_operations rxrpc_local_seq_ops = {
 467         .start  = rxrpc_local_seq_start,
 468         .next   = rxrpc_local_seq_next,
 469         .stop   = rxrpc_local_seq_stop,
 470         .show   = rxrpc_local_seq_show,
 471 };
 472
 473 /*
 474  * Display stats in /proc/net/rxrpc/stats
 475  */
 476 int rxrpc_stats_show(struct seq_file *seq, void *v)
 477 {
 478         struct rxrpc_net *rxnet = rxrpc_net(seq_file_single_net(seq));
 479
 480         seq_printf(seq,
 481                    "Data     : send=%u sendf=%u fail=%u\n",
 482                    atomic_read(&rxnet->stat_tx_data_send),
 483                    atomic_read(&rxnet->stat_tx_data_send_frag),
 484                    atomic_read(&rxnet->stat_tx_data_send_fail));
 485         seq_printf(seq,
 486                    "Data-Tx  : nr=%u retrans=%u uf=%u cwr=%u\n",
 487                    atomic_read(&rxnet->stat_tx_data),
 488                    atomic_read(&rxnet->stat_tx_data_retrans),
 489                    atomic_read(&rxnet->stat_tx_data_underflow),
 490                    atomic_read(&rxnet->stat_tx_data_cwnd_reset));
 491         seq_printf(seq,
 492                    "Data-Rx  : nr=%u reqack=%u jumbo=%u\n",
 493                    atomic_read(&rxnet->stat_rx_data),
 494                    atomic_read(&rxnet->stat_rx_data_reqack),
 495                    atomic_read(&rxnet->stat_rx_data_jumbo));
 496         seq_printf(seq,
 497                    "Ack      : fill=%u send=%u skip=%u\n",
 498                    atomic_read(&rxnet->stat_tx_ack_fill),
 499                    atomic_read(&rxnet->stat_tx_ack_send),
 500                    atomic_read(&rxnet->stat_tx_ack_skip));
 501         seq_printf(seq,
 502                    "Ack-Tx   : req=%u dup=%u oos=%u exw=%u nos=%u png=%u prs=%u dly=%u idl=%u\n",
 503                    atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_REQUESTED]),
 504                    atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_DUPLICATE]),
 505                    atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_OUT_OF_SEQUENCE]),
 506                    atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_EXCEEDS_WINDOW]),
 507                    atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_NOSPACE]),
 508                    atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_PING]),
 509                    atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_PING_RESPONSE]),
 510                    atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_DELAY]),
 511                    atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_IDLE]));
 512         seq_printf(seq,
 513                    "Ack-Rx   : req=%u dup=%u oos=%u exw=%u nos=%u png=%u prs=%u dly=%u idl=%u\n",
 514                    atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_REQUESTED]),
 515                    atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_DUPLICATE]),
 516                    atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_OUT_OF_SEQUENCE]),
 517                    atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_EXCEEDS_WINDOW]),
 518                    atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_NOSPACE]),
 519                    atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_PING]),
 520                    atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_PING_RESPONSE]),
 521                    atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_DELAY]),
 522                    atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_IDLE]));
 523         seq_printf(seq,
 524                    "Why-Req-A: acklost=%u already=%u mrtt=%u ortt=%u\n",
 525                    atomic_read(&rxnet->stat_why_req_ack[rxrpc_reqack_ack_lost]),
 526                    atomic_read(&rxnet->stat_why_req_ack[rxrpc_reqack_already_on]),
 527                    atomic_read(&rxnet->stat_why_req_ack[rxrpc_reqack_more_rtt]),
 528                    atomic_read(&rxnet->stat_why_req_ack[rxrpc_reqack_old_rtt]));
 529         seq_printf(seq,
 530                    "Why-Req-A: nolast=%u retx=%u slows=%u smtxw=%u\n",
 531                    atomic_read(&rxnet->stat_why_req_ack[rxrpc_reqack_no_srv_last]),
 532                    atomic_read(&rxnet->stat_why_req_ack[rxrpc_reqack_retrans]),
 533                    atomic_read(&rxnet->stat_why_req_ack[rxrpc_reqack_slow_start]),
 534                    atomic_read(&rxnet->stat_why_req_ack[rxrpc_reqack_small_txwin]));
 535         seq_printf(seq,
 536                    "Buffers  : txb=%u rxb=%u\n",
 537                    atomic_read(&rxrpc_nr_txbuf),
 538                    atomic_read(&rxrpc_n_rx_skbs));
 539         seq_printf(seq,
 540                    "IO-thread: loops=%u\n",
 541                    atomic_read(&rxnet->stat_io_loop));
 542         return 0;
 543 }
 544
 545 /*
 546  * Clear stats if /proc/net/rxrpc/stats is written to.
 547  */
 548 int rxrpc_stats_clear(struct file *file, char *buf, size_t size)
 549 {
 550         struct seq_file *m = file->private_data;
 551         struct rxrpc_net *rxnet = rxrpc_net(seq_file_single_net(m));
 552
 553         if (size > 1 || (size == 1 && buf[0] != '\n'))
 554                 return -EINVAL;
 555
 556         atomic_set(&rxnet->stat_tx_data, 0);
 557         atomic_set(&rxnet->stat_tx_data_retrans, 0);
 558         atomic_set(&rxnet->stat_tx_data_underflow, 0);
 559         atomic_set(&rxnet->stat_tx_data_cwnd_reset, 0);
 560         atomic_set(&rxnet->stat_tx_data_send, 0);
 561         atomic_set(&rxnet->stat_tx_data_send_frag, 0);
 562         atomic_set(&rxnet->stat_tx_data_send_fail, 0);
 563         atomic_set(&rxnet->stat_rx_data, 0);
 564         atomic_set(&rxnet->stat_rx_data_reqack, 0);
 565         atomic_set(&rxnet->stat_rx_data_jumbo, 0);
 566
 567         atomic_set(&rxnet->stat_tx_ack_fill, 0);
 568         atomic_set(&rxnet->stat_tx_ack_send, 0);
 569         atomic_set(&rxnet->stat_tx_ack_skip, 0);
 570         memset(&rxnet->stat_tx_acks, 0, sizeof(rxnet->stat_tx_acks));
 571         memset(&rxnet->stat_rx_acks, 0, sizeof(rxnet->stat_rx_acks));
 572
 573         memset(&rxnet->stat_why_req_ack, 0, sizeof(rxnet->stat_why_req_ack));
 574
 575         atomic_set(&rxnet->stat_io_loop, 0);
 576         return size;
 577 }