drivers/net/ethernet/marvell/mvpp2/mvpp2_debugfs.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Driver for Marvell PPv2 network controller for Armada 375 SoC.
   4  *
   5  * Copyright (C) 2018 Marvell
   6  */
   7
   8 #include <linux/kernel.h>
   9 #include <linux/slab.h>
  10 #include <linux/debugfs.h>
  11
  12 #include "mvpp2.h"
  13 #include "mvpp2_prs.h"
  14 #include "mvpp2_cls.h"
  15
  16 struct mvpp2_dbgfs_prs_entry {
  17         int tid;
  18         struct mvpp2 *priv;
  19 };
  20
  21 struct mvpp2_dbgfs_flow_entry {
  22         int flow;
  23         struct mvpp2 *priv;
  24 };
  25
  26 struct mvpp2_dbgfs_port_flow_entry {
  27         struct mvpp2_port *port;
  28         struct mvpp2_dbgfs_flow_entry *dbg_fe;
  29 };
  30
  31 static int mvpp2_dbgfs_flow_flt_hits_show(struct seq_file *s, void *unused)
  32 {
  33         struct mvpp2_dbgfs_flow_entry *entry = s->private;
  34         int id = MVPP2_FLOW_C2_ENTRY(entry->flow);
  35
  36         u32 hits = mvpp2_cls_flow_hits(entry->priv, id);
  37
  38         seq_printf(s, "%u\n", hits);
  39
  40         return 0;
  41 }
  42
  43 DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_flow_flt_hits);
  44
  45 static int mvpp2_dbgfs_flow_dec_hits_show(struct seq_file *s, void *unused)
  46 {
  47         struct mvpp2_dbgfs_flow_entry *entry = s->private;
  48
  49         u32 hits = mvpp2_cls_lookup_hits(entry->priv, entry->flow);
  50
  51         seq_printf(s, "%u\n", hits);
  52
  53         return 0;
  54 }
  55
  56 DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_flow_dec_hits);
  57
  58 static int mvpp2_dbgfs_flow_type_show(struct seq_file *s, void *unused)
  59 {
  60         struct mvpp2_dbgfs_flow_entry *entry = s->private;
  61         struct mvpp2_cls_flow *f;
  62         const char *flow_name;
  63
  64         f = mvpp2_cls_flow_get(entry->flow);
  65         if (!f)
  66                 return -EINVAL;
  67
  68         switch (f->flow_type) {
  69         case IPV4_FLOW:
  70                 flow_name = "ipv4";
  71                 break;
  72         case IPV6_FLOW:
  73                 flow_name = "ipv6";
  74                 break;
  75         case TCP_V4_FLOW:
  76                 flow_name = "tcp4";
  77                 break;
  78         case TCP_V6_FLOW:
  79                 flow_name = "tcp6";
  80                 break;
  81         case UDP_V4_FLOW:
  82                 flow_name = "udp4";
  83                 break;
  84         case UDP_V6_FLOW:
  85                 flow_name = "udp6";
  86                 break;
  87         default:
  88                 flow_name = "other";
  89         }
  90
  91         seq_printf(s, "%s\n", flow_name);
  92
  93         return 0;
  94 }
  95
  96 static int mvpp2_dbgfs_flow_type_open(struct inode *inode, struct file *file)
  97 {
  98         return single_open(file, mvpp2_dbgfs_flow_type_show, inode->i_private);
  99 }
 100
 101 static int mvpp2_dbgfs_flow_type_release(struct inode *inode, struct file *file)
 102 {
 103         struct seq_file *seq = file->private_data;
 104         struct mvpp2_dbgfs_flow_entry *flow_entry = seq->private;
 105
 106         kfree(flow_entry);
 107         return single_release(inode, file);
 108 }
 109
 110 static const struct file_operations mvpp2_dbgfs_flow_type_fops = {
 111         .open = mvpp2_dbgfs_flow_type_open,
 112         .read = seq_read,
 113         .release = mvpp2_dbgfs_flow_type_release,
 114 };
 115
 116 static int mvpp2_dbgfs_flow_id_show(struct seq_file *s, void *unused)
 117 {
 118         struct mvpp2_dbgfs_flow_entry *entry = s->private;
 119         struct mvpp2_cls_flow *f;
 120
 121         f = mvpp2_cls_flow_get(entry->flow);
 122         if (!f)
 123                 return -EINVAL;
 124
 125         seq_printf(s, "%d\n", f->flow_id);
 126
 127         return 0;
 128 }
 129
 130 DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_flow_id);
 131
 132 static int mvpp2_dbgfs_port_flow_hash_opt_show(struct seq_file *s, void *unused)
 133 {
 134         struct mvpp2_dbgfs_port_flow_entry *entry = s->private;
 135         struct mvpp2_port *port = entry->port;
 136         struct mvpp2_cls_flow_entry fe;
 137         struct mvpp2_cls_flow *f;
 138         int flow_index;
 139         u16 hash_opts;
 140
 141         f = mvpp2_cls_flow_get(entry->dbg_fe->flow);
 142         if (!f)
 143                 return -EINVAL;
 144
 145         flow_index = MVPP2_PORT_FLOW_HASH_ENTRY(entry->port->id, f->flow_id);
 146
 147         mvpp2_cls_flow_read(port->priv, flow_index, &fe);
 148
 149         hash_opts = mvpp2_flow_get_hek_fields(&fe);
 150
 151         seq_printf(s, "0x%04x\n", hash_opts);
 152
 153         return 0;
 154 }
 155
 156 static int mvpp2_dbgfs_port_flow_hash_opt_open(struct inode *inode,
 157                                                struct file *file)
 158 {
 159         return single_open(file, mvpp2_dbgfs_port_flow_hash_opt_show,
 160                            inode->i_private);
 161 }
 162
 163 static int mvpp2_dbgfs_port_flow_hash_opt_release(struct inode *inode,
 164                                                   struct file *file)
 165 {
 166         struct seq_file *seq = file->private_data;
 167         struct mvpp2_dbgfs_port_flow_entry *flow_entry = seq->private;
 168
 169         kfree(flow_entry);
 170         return single_release(inode, file);
 171 }
 172
 173 static const struct file_operations mvpp2_dbgfs_port_flow_hash_opt_fops = {
 174         .open = mvpp2_dbgfs_port_flow_hash_opt_open,
 175         .read = seq_read,
 176         .release = mvpp2_dbgfs_port_flow_hash_opt_release,
 177 };
 178
 179 static int mvpp2_dbgfs_port_flow_engine_show(struct seq_file *s, void *unused)
 180 {
 181         struct mvpp2_dbgfs_port_flow_entry *entry = s->private;
 182         struct mvpp2_port *port = entry->port;
 183         struct mvpp2_cls_flow_entry fe;
 184         struct mvpp2_cls_flow *f;
 185         int flow_index, engine;
 186
 187         f = mvpp2_cls_flow_get(entry->dbg_fe->flow);
 188         if (!f)
 189                 return -EINVAL;
 190
 191         flow_index = MVPP2_PORT_FLOW_HASH_ENTRY(entry->port->id, f->flow_id);
 192
 193         mvpp2_cls_flow_read(port->priv, flow_index, &fe);
 194
 195         engine = mvpp2_cls_flow_eng_get(&fe);
 196
 197         seq_printf(s, "%d\n", engine);
 198
 199         return 0;
 200 }
 201
 202 DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_port_flow_engine);
 203
 204 static int mvpp2_dbgfs_flow_c2_hits_show(struct seq_file *s, void *unused)
 205 {
 206         struct mvpp2_port *port = s->private;
 207         u32 hits;
 208
 209         hits = mvpp2_cls_c2_hit_count(port->priv,
 210                                       MVPP22_CLS_C2_RSS_ENTRY(port->id));
 211
 212         seq_printf(s, "%u\n", hits);
 213
 214         return 0;
 215 }
 216
 217 DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_flow_c2_hits);
 218
 219 static int mvpp2_dbgfs_flow_c2_rxq_show(struct seq_file *s, void *unused)
 220 {
 221         struct mvpp2_port *port = s->private;
 222         struct mvpp2_cls_c2_entry c2;
 223         u8 qh, ql;
 224
 225         mvpp2_cls_c2_read(port->priv, MVPP22_CLS_C2_RSS_ENTRY(port->id), &c2);
 226
 227         qh = (c2.attr[0] >> MVPP22_CLS_C2_ATTR0_QHIGH_OFFS) &
 228              MVPP22_CLS_C2_ATTR0_QHIGH_MASK;
 229
 230         ql = (c2.attr[0] >> MVPP22_CLS_C2_ATTR0_QLOW_OFFS) &
 231              MVPP22_CLS_C2_ATTR0_QLOW_MASK;
 232
 233         seq_printf(s, "%d\n", (qh << 3 | ql));
 234
 235         return 0;
 236 }
 237
 238 DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_flow_c2_rxq);
 239
 240 static int mvpp2_dbgfs_flow_c2_enable_show(struct seq_file *s, void *unused)
 241 {
 242         struct mvpp2_port *port = s->private;
 243         struct mvpp2_cls_c2_entry c2;
 244         int enabled;
 245
 246         mvpp2_cls_c2_read(port->priv, MVPP22_CLS_C2_RSS_ENTRY(port->id), &c2);
 247
 248         enabled = !!(c2.attr[2] & MVPP22_CLS_C2_ATTR2_RSS_EN);
 249
 250         seq_printf(s, "%d\n", enabled);
 251
 252         return 0;
 253 }
 254
 255 DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_flow_c2_enable);
 256
 257 static int mvpp2_dbgfs_port_vid_show(struct seq_file *s, void *unused)
 258 {
 259         struct mvpp2_port *port = s->private;
 260         unsigned char byte[2], enable[2];
 261         struct mvpp2 *priv = port->priv;
 262         struct mvpp2_prs_entry pe;
 263         unsigned long pmap;
 264         u16 rvid;
 265         int tid;
 266
 267         for (tid = MVPP2_PRS_VID_PORT_FIRST(port->id);
 268              tid <= MVPP2_PRS_VID_PORT_LAST(port->id); tid++) {
 269                 mvpp2_prs_init_from_hw(priv, &pe, tid);
 270
 271                 pmap = mvpp2_prs_tcam_port_map_get(&pe);
 272
 273                 if (!priv->prs_shadow[tid].valid)
 274                         continue;
 275
 276                 if (!test_bit(port->id, &pmap))
 277                         continue;
 278
 279                 mvpp2_prs_tcam_data_byte_get(&pe, 2, &byte[0], &enable[0]);
 280                 mvpp2_prs_tcam_data_byte_get(&pe, 3, &byte[1], &enable[1]);
 281
 282                 rvid = ((byte[0] & 0xf) << 8) + byte[1];
 283
 284                 seq_printf(s, "%u\n", rvid);
 285         }
 286
 287         return 0;
 288 }
 289
 290 DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_port_vid);
 291
 292 static int mvpp2_dbgfs_port_parser_show(struct seq_file *s, void *unused)
 293 {
 294         struct mvpp2_port *port = s->private;
 295         struct mvpp2 *priv = port->priv;
 296         struct mvpp2_prs_entry pe;
 297         unsigned long pmap;
 298         int i;
 299
 300         for (i = 0; i < MVPP2_PRS_TCAM_SRAM_SIZE; i++) {
 301                 mvpp2_prs_init_from_hw(port->priv, &pe, i);
 302
 303                 pmap = mvpp2_prs_tcam_port_map_get(&pe);
 304                 if (priv->prs_shadow[i].valid && test_bit(port->id, &pmap))
 305                         seq_printf(s, "%03d\n", i);
 306         }
 307
 308         return 0;
 309 }
 310
 311 DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_port_parser);
 312
 313 static int mvpp2_dbgfs_filter_show(struct seq_file *s, void *unused)
 314 {
 315         struct mvpp2_port *port = s->private;
 316         struct mvpp2 *priv = port->priv;
 317         struct mvpp2_prs_entry pe;
 318         unsigned long pmap;
 319         int index, tid;
 320
 321         for (tid = MVPP2_PE_MAC_RANGE_START;
 322              tid <= MVPP2_PE_MAC_RANGE_END; tid++) {
 323                 unsigned char da[ETH_ALEN], da_mask[ETH_ALEN];
 324
 325                 if (!priv->prs_shadow[tid].valid ||
 326                     priv->prs_shadow[tid].lu != MVPP2_PRS_LU_MAC ||
 327                     priv->prs_shadow[tid].udf != MVPP2_PRS_UDF_MAC_DEF)
 328                         continue;
 329
 330                 mvpp2_prs_init_from_hw(priv, &pe, tid);
 331
 332                 pmap = mvpp2_prs_tcam_port_map_get(&pe);
 333
 334                 /* We only want entries active on this port */
 335                 if (!test_bit(port->id, &pmap))
 336                         continue;
 337
 338                 /* Read mac addr from entry */
 339                 for (index = 0; index < ETH_ALEN; index++)
 340                         mvpp2_prs_tcam_data_byte_get(&pe, index, &da[index],
 341                                                      &da_mask[index]);
 342
 343                 seq_printf(s, "%pM\n", da);
 344         }
 345
 346         return 0;
 347 }
 348
 349 DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_filter);
 350
 351 static int mvpp2_dbgfs_prs_lu_show(struct seq_file *s, void *unused)
 352 {
 353         struct mvpp2_dbgfs_prs_entry *entry = s->private;
 354         struct mvpp2 *priv = entry->priv;
 355
 356         seq_printf(s, "%x\n", priv->prs_shadow[entry->tid].lu);
 357
 358         return 0;
 359 }
 360
 361 DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_prs_lu);
 362
 363 static int mvpp2_dbgfs_prs_pmap_show(struct seq_file *s, void *unused)
 364 {
 365         struct mvpp2_dbgfs_prs_entry *entry = s->private;
 366         struct mvpp2_prs_entry pe;
 367         unsigned int pmap;
 368
 369         mvpp2_prs_init_from_hw(entry->priv, &pe, entry->tid);
 370
 371         pmap = mvpp2_prs_tcam_port_map_get(&pe);
 372         pmap &= MVPP2_PRS_PORT_MASK;
 373
 374         seq_printf(s, "%02x\n", pmap);
 375
 376         return 0;
 377 }
 378
 379 DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_prs_pmap);
 380
 381 static int mvpp2_dbgfs_prs_ai_show(struct seq_file *s, void *unused)
 382 {
 383         struct mvpp2_dbgfs_prs_entry *entry = s->private;
 384         struct mvpp2_prs_entry pe;
 385         unsigned char ai, ai_mask;
 386
 387         mvpp2_prs_init_from_hw(entry->priv, &pe, entry->tid);
 388
 389         ai = pe.tcam[MVPP2_PRS_TCAM_AI_WORD] & MVPP2_PRS_AI_MASK;
 390         ai_mask = (pe.tcam[MVPP2_PRS_TCAM_AI_WORD] >> 16) & MVPP2_PRS_AI_MASK;
 391
 392         seq_printf(s, "%02x %02x\n", ai, ai_mask);
 393
 394         return 0;
 395 }
 396
 397 DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_prs_ai);
 398
 399 static int mvpp2_dbgfs_prs_hdata_show(struct seq_file *s, void *unused)
 400 {
 401         struct mvpp2_dbgfs_prs_entry *entry = s->private;
 402         struct mvpp2_prs_entry pe;
 403         unsigned char data[8], mask[8];
 404         int i;
 405
 406         mvpp2_prs_init_from_hw(entry->priv, &pe, entry->tid);
 407
 408         for (i = 0; i < 8; i++)
 409                 mvpp2_prs_tcam_data_byte_get(&pe, i, &data[i], &mask[i]);
 410
 411         seq_printf(s, "%*phN %*phN\n", 8, data, 8, mask);
 412
 413         return 0;
 414 }
 415
 416 DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_prs_hdata);
 417
 418 static int mvpp2_dbgfs_prs_sram_show(struct seq_file *s, void *unused)
 419 {
 420         struct mvpp2_dbgfs_prs_entry *entry = s->private;
 421         struct mvpp2_prs_entry pe;
 422
 423         mvpp2_prs_init_from_hw(entry->priv, &pe, entry->tid);
 424
 425         seq_printf(s, "%*phN\n", 14, pe.sram);
 426
 427         return 0;
 428 }
 429
 430 DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_prs_sram);
 431
 432 static int mvpp2_dbgfs_prs_hits_show(struct seq_file *s, void *unused)
 433 {
 434         struct mvpp2_dbgfs_prs_entry *entry = s->private;
 435         int val;
 436
 437         val = mvpp2_prs_hits(entry->priv, entry->tid);
 438         if (val < 0)
 439                 return val;
 440
 441         seq_printf(s, "%d\n", val);
 442
 443         return 0;
 444 }
 445
 446 DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_prs_hits);
 447
 448 static int mvpp2_dbgfs_prs_valid_show(struct seq_file *s, void *unused)
 449 {
 450         struct mvpp2_dbgfs_prs_entry *entry = s->private;
 451         struct mvpp2 *priv = entry->priv;
 452         int tid = entry->tid;
 453
 454         seq_printf(s, "%d\n", priv->prs_shadow[tid].valid ? 1 : 0);
 455
 456         return 0;
 457 }
 458
 459 static int mvpp2_dbgfs_prs_valid_open(struct inode *inode, struct file *file)
 460 {
 461         return single_open(file, mvpp2_dbgfs_prs_valid_show, inode->i_private);
 462 }
 463
 464 static int mvpp2_dbgfs_prs_valid_release(struct inode *inode, struct file *file)
 465 {
 466         struct seq_file *seq = file->private_data;
 467         struct mvpp2_dbgfs_prs_entry *entry = seq->private;
 468
 469         kfree(entry);
 470         return single_release(inode, file);
 471 }
 472
 473 static const struct file_operations mvpp2_dbgfs_prs_valid_fops = {
 474         .open = mvpp2_dbgfs_prs_valid_open,
 475         .read = seq_read,
 476         .release = mvpp2_dbgfs_prs_valid_release,
 477 };
 478
 479 static int mvpp2_dbgfs_flow_port_init(struct dentry *parent,
 480                                       struct mvpp2_port *port,
 481                                       struct mvpp2_dbgfs_flow_entry *entry)
 482 {
 483         struct mvpp2_dbgfs_port_flow_entry *port_entry;
 484         struct dentry *port_dir;
 485
 486         port_dir = debugfs_create_dir(port->dev->name, parent);
 487
 488         /* This will be freed by 'hash_opts' release op */
 489         port_entry = kmalloc(sizeof(*port_entry), GFP_KERNEL);
 490         if (!port_entry)
 491                 return -ENOMEM;
 492
 493         port_entry->port = port;
 494         port_entry->dbg_fe = entry;
 495
 496         debugfs_create_file("hash_opts", 0444, port_dir, port_entry,
 497                             &mvpp2_dbgfs_port_flow_hash_opt_fops);
 498
 499         debugfs_create_file("engine", 0444, port_dir, port_entry,
 500                             &mvpp2_dbgfs_port_flow_engine_fops);
 501
 502         return 0;
 503 }
 504
 505 static int mvpp2_dbgfs_flow_entry_init(struct dentry *parent,
 506                                        struct mvpp2 *priv, int flow)
 507 {
 508         struct mvpp2_dbgfs_flow_entry *entry;
 509         struct dentry *flow_entry_dir;
 510         char flow_entry_name[10];
 511         int i, ret;
 512
 513         sprintf(flow_entry_name, "%02d", flow);
 514
 515         flow_entry_dir = debugfs_create_dir(flow_entry_name, parent);
 516
 517         /* This will be freed by 'type' release op */
 518         entry = kmalloc(sizeof(*entry), GFP_KERNEL);
 519         if (!entry)
 520                 return -ENOMEM;
 521
 522         entry->flow = flow;
 523         entry->priv = priv;
 524
 525         debugfs_create_file("flow_hits", 0444, flow_entry_dir, entry,
 526                             &mvpp2_dbgfs_flow_flt_hits_fops);
 527
 528         debugfs_create_file("dec_hits", 0444, flow_entry_dir, entry,
 529                             &mvpp2_dbgfs_flow_dec_hits_fops);
 530
 531         debugfs_create_file("type", 0444, flow_entry_dir, entry,
 532                             &mvpp2_dbgfs_flow_type_fops);
 533
 534         debugfs_create_file("id", 0444, flow_entry_dir, entry,
 535                             &mvpp2_dbgfs_flow_id_fops);
 536
 537         /* Create entry for each port */
 538         for (i = 0; i < priv->port_count; i++) {
 539                 ret = mvpp2_dbgfs_flow_port_init(flow_entry_dir,
 540                                                  priv->port_list[i], entry);
 541                 if (ret)
 542                         return ret;
 543         }
 544         return 0;
 545 }
 546
 547 static int mvpp2_dbgfs_flow_init(struct dentry *parent, struct mvpp2 *priv)
 548 {
 549         struct dentry *flow_dir;
 550         int i, ret;
 551
 552         flow_dir = debugfs_create_dir("flows", parent);
 553
 554         for (i = 0; i < MVPP2_N_FLOWS; i++) {
 555                 ret = mvpp2_dbgfs_flow_entry_init(flow_dir, priv, i);
 556                 if (ret)
 557                         return ret;
 558         }
 559
 560         return 0;
 561 }
 562
 563 static int mvpp2_dbgfs_prs_entry_init(struct dentry *parent,
 564                                       struct mvpp2 *priv, int tid)
 565 {
 566         struct mvpp2_dbgfs_prs_entry *entry;
 567         struct dentry *prs_entry_dir;
 568         char prs_entry_name[10];
 569
 570         if (tid >= MVPP2_PRS_TCAM_SRAM_SIZE)
 571                 return -EINVAL;
 572
 573         sprintf(prs_entry_name, "%03d", tid);
 574
 575         prs_entry_dir = debugfs_create_dir(prs_entry_name, parent);
 576
 577         /* The 'valid' entry's ops will free that */
 578         entry = kmalloc(sizeof(*entry), GFP_KERNEL);
 579         if (!entry)
 580                 return -ENOMEM;
 581
 582         entry->tid = tid;
 583         entry->priv = priv;
 584
 585         /* Create each attr */
 586         debugfs_create_file("sram", 0444, prs_entry_dir, entry,
 587                             &mvpp2_dbgfs_prs_sram_fops);
 588
 589         debugfs_create_file("valid", 0644, prs_entry_dir, entry,
 590                             &mvpp2_dbgfs_prs_valid_fops);
 591
 592         debugfs_create_file("lookup_id", 0644, prs_entry_dir, entry,
 593                             &mvpp2_dbgfs_prs_lu_fops);
 594
 595         debugfs_create_file("ai", 0644, prs_entry_dir, entry,
 596                             &mvpp2_dbgfs_prs_ai_fops);
 597
 598         debugfs_create_file("header_data", 0644, prs_entry_dir, entry,
 599                             &mvpp2_dbgfs_prs_hdata_fops);
 600
 601         debugfs_create_file("hits", 0444, prs_entry_dir, entry,
 602                             &mvpp2_dbgfs_prs_hits_fops);
 603
 604         return 0;
 605 }
 606
 607 static int mvpp2_dbgfs_prs_init(struct dentry *parent, struct mvpp2 *priv)
 608 {
 609         struct dentry *prs_dir;
 610         int i, ret;
 611
 612         prs_dir = debugfs_create_dir("parser", parent);
 613
 614         for (i = 0; i < MVPP2_PRS_TCAM_SRAM_SIZE; i++) {
 615                 ret = mvpp2_dbgfs_prs_entry_init(prs_dir, priv, i);
 616                 if (ret)
 617                         return ret;
 618         }
 619
 620         return 0;
 621 }
 622
 623 static int mvpp2_dbgfs_port_init(struct dentry *parent,
 624                                  struct mvpp2_port *port)
 625 {
 626         struct dentry *port_dir;
 627
 628         port_dir = debugfs_create_dir(port->dev->name, parent);
 629
 630         debugfs_create_file("parser_entries", 0444, port_dir, port,
 631                             &mvpp2_dbgfs_port_parser_fops);
 632
 633         debugfs_create_file("mac_filter", 0444, port_dir, port,
 634                             &mvpp2_dbgfs_filter_fops);
 635
 636         debugfs_create_file("vid_filter", 0444, port_dir, port,
 637                             &mvpp2_dbgfs_port_vid_fops);
 638
 639         debugfs_create_file("c2_hits", 0444, port_dir, port,
 640                             &mvpp2_dbgfs_flow_c2_hits_fops);
 641
 642         debugfs_create_file("default_rxq", 0444, port_dir, port,
 643                             &mvpp2_dbgfs_flow_c2_rxq_fops);
 644
 645         debugfs_create_file("rss_enable", 0444, port_dir, port,
 646                             &mvpp2_dbgfs_flow_c2_enable_fops);
 647
 648         return 0;
 649 }
 650
 651 static struct dentry *mvpp2_root;
 652
 653 void mvpp2_dbgfs_exit(void)
 654 {
 655         debugfs_remove(mvpp2_root);
 656 }
 657
 658 void mvpp2_dbgfs_cleanup(struct mvpp2 *priv)
 659 {
 660         debugfs_remove_recursive(priv->dbgfs_dir);
 661 }
 662
 663 void mvpp2_dbgfs_init(struct mvpp2 *priv, const char *name)
 664 {
 665         struct dentry *mvpp2_dir;
 666         int ret, i;
 667
 668         if (!mvpp2_root)
 669                 mvpp2_root = debugfs_create_dir(MVPP2_DRIVER_NAME, NULL);
 670
 671         mvpp2_dir = debugfs_create_dir(name, mvpp2_root);
 672
 673         priv->dbgfs_dir = mvpp2_dir;
 674
 675         ret = mvpp2_dbgfs_prs_init(mvpp2_dir, priv);
 676         if (ret)
 677                 goto err;
 678
 679         for (i = 0; i < priv->port_count; i++) {
 680                 ret = mvpp2_dbgfs_port_init(mvpp2_dir, priv->port_list[i]);
 681                 if (ret)
 682                         goto err;
 683         }
 684
 685         ret = mvpp2_dbgfs_flow_init(mvpp2_dir, priv);
 686         if (ret)
 687                 goto err;
 688
 689         return;
 690 err:
 691         mvpp2_dbgfs_cleanup(priv);
 692 }