drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c

   1 /*
   2  * This file is part of the Chelsio T4 Ethernet driver for Linux.
   3  *
   4  * Copyright (c) 2003-2014 Chelsio Communications, Inc. All rights reserved.
   5  *
   6  * This software is available to you under a choice of one of two
   7  * licenses.  You may choose to be licensed under the terms of the GNU
   8  * General Public License (GPL) Version 2, available from the file
   9  * COPYING in the main directory of this source tree, or the
  10  * OpenIB.org BSD license below:
  11  *
  12  *     Redistribution and use in source and binary forms, with or
  13  *     without modification, are permitted provided that the following
  14  *     conditions are met:
  15  *
  16  *      - Redistributions of source code must retain the above
  17  *        copyright notice, this list of conditions and the following
  18  *        disclaimer.
  19  *
  20  *      - Redistributions in binary form must reproduce the above
  21  *        copyright notice, this list of conditions and the following
  22  *        disclaimer in the documentation and/or other materials
  23  *        provided with the distribution.
  24  *
  25  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  29  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  30  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  31  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  32  * SOFTWARE.
  33  */
  34
  35 #include <linux/seq_file.h>
  36 #include <linux/debugfs.h>
  37 #include <linux/string_helpers.h>
  38 #include <linux/sort.h>
  39 #include <linux/ctype.h>
  40
  41 #include "cxgb4.h"
  42 #include "t4_regs.h"
  43 #include "t4_values.h"
  44 #include "t4fw_api.h"
  45 #include "cxgb4_debugfs.h"
  46 #include "clip_tbl.h"
  47 #include "l2t.h"
  48
  49 /* generic seq_file support for showing a table of size rows x width. */
  50 static void *seq_tab_get_idx(struct seq_tab *tb, loff_t pos)
  51 {
  52         pos -= tb->skip_first;
  53         return pos >= tb->rows ? NULL : &tb->data[pos * tb->width];
  54 }
  55
  56 static void *seq_tab_start(struct seq_file *seq, loff_t *pos)
  57 {
  58         struct seq_tab *tb = seq->private;
  59
  60         if (tb->skip_first && *pos == 0)
  61                 return SEQ_START_TOKEN;
  62
  63         return seq_tab_get_idx(tb, *pos);
  64 }
  65
  66 static void *seq_tab_next(struct seq_file *seq, void *v, loff_t *pos)
  67 {
  68         v = seq_tab_get_idx(seq->private, *pos + 1);
  69         if (v)
  70                 ++*pos;
  71         return v;
  72 }
  73
  74 static void seq_tab_stop(struct seq_file *seq, void *v)
  75 {
  76 }
  77
  78 static int seq_tab_show(struct seq_file *seq, void *v)
  79 {
  80         const struct seq_tab *tb = seq->private;
  81
  82         return tb->show(seq, v, ((char *)v - tb->data) / tb->width);
  83 }
  84
  85 static const struct seq_operations seq_tab_ops = {
  86         .start = seq_tab_start,
  87         .next  = seq_tab_next,
  88         .stop  = seq_tab_stop,
  89         .show  = seq_tab_show
  90 };
  91
  92 struct seq_tab *seq_open_tab(struct file *f, unsigned int rows,
  93                              unsigned int width, unsigned int have_header,
  94                              int (*show)(struct seq_file *seq, void *v, int i))
  95 {
  96         struct seq_tab *p;
  97
  98         p = __seq_open_private(f, &seq_tab_ops, sizeof(*p) + rows * width);
  99         if (p) {
 100                 p->show = show;
 101                 p->rows = rows;
 102                 p->width = width;
 103                 p->skip_first = have_header != 0;
 104         }
 105         return p;
 106 }
 107
 108 /* Trim the size of a seq_tab to the supplied number of rows.  The operation is
 109  * irreversible.
 110  */
 111 static int seq_tab_trim(struct seq_tab *p, unsigned int new_rows)
 112 {
 113         if (new_rows > p->rows)
 114                 return -EINVAL;
 115         p->rows = new_rows;
 116         return 0;
 117 }
 118
 119 static int cim_la_show(struct seq_file *seq, void *v, int idx)
 120 {
 121         if (v == SEQ_START_TOKEN)
 122                 seq_puts(seq, "Status   Data      PC     LS0Stat  LS0Addr "
 123                          "            LS0Data\n");
 124         else {
 125                 const u32 *p = v;
 126
 127                 seq_printf(seq,
 128                            "  %02x  %x%07x %x%07x %08x %08x %08x%08x%08x%08x\n",
 129                            (p[0] >> 4) & 0xff, p[0] & 0xf, p[1] >> 4,
 130                            p[1] & 0xf, p[2] >> 4, p[2] & 0xf, p[3], p[4], p[5],
 131                            p[6], p[7]);
 132         }
 133         return 0;
 134 }
 135
 136 static int cim_la_show_3in1(struct seq_file *seq, void *v, int idx)
 137 {
 138         if (v == SEQ_START_TOKEN) {
 139                 seq_puts(seq, "Status   Data      PC\n");
 140         } else {
 141                 const u32 *p = v;
 142
 143                 seq_printf(seq, "  %02x   %08x %08x\n", p[5] & 0xff, p[6],
 144                            p[7]);
 145                 seq_printf(seq, "  %02x   %02x%06x %02x%06x\n",
 146                            (p[3] >> 8) & 0xff, p[3] & 0xff, p[4] >> 8,
 147                            p[4] & 0xff, p[5] >> 8);
 148                 seq_printf(seq, "  %02x   %x%07x %x%07x\n", (p[0] >> 4) & 0xff,
 149                            p[0] & 0xf, p[1] >> 4, p[1] & 0xf, p[2] >> 4);
 150         }
 151         return 0;
 152 }
 153
 154 static int cim_la_show_t6(struct seq_file *seq, void *v, int idx)
 155 {
 156         if (v == SEQ_START_TOKEN) {
 157                 seq_puts(seq, "Status   Inst    Data      PC     LS0Stat  "
 158                          "LS0Addr  LS0Data  LS1Stat  LS1Addr  LS1Data\n");
 159         } else {
 160                 const u32 *p = v;
 161
 162                 seq_printf(seq, "  %02x   %04x%04x %04x%04x %04x%04x %08x %08x %08x %08x %08x %08x\n",
 163                            (p[9] >> 16) & 0xff,       /* Status */
 164                            p[9] & 0xffff, p[8] >> 16, /* Inst */
 165                            p[8] & 0xffff, p[7] >> 16, /* Data */
 166                            p[7] & 0xffff, p[6] >> 16, /* PC */
 167                            p[2], p[1], p[0],      /* LS0 Stat, Addr and Data */
 168                            p[5], p[4], p[3]);     /* LS1 Stat, Addr and Data */
 169         }
 170         return 0;
 171 }
 172
 173 static int cim_la_show_pc_t6(struct seq_file *seq, void *v, int idx)
 174 {
 175         if (v == SEQ_START_TOKEN) {
 176                 seq_puts(seq, "Status   Inst    Data      PC\n");
 177         } else {
 178                 const u32 *p = v;
 179
 180                 seq_printf(seq, "  %02x   %08x %08x %08x\n",
 181                            p[3] & 0xff, p[2], p[1], p[0]);
 182                 seq_printf(seq, "  %02x   %02x%06x %02x%06x %02x%06x\n",
 183                            (p[6] >> 8) & 0xff, p[6] & 0xff, p[5] >> 8,
 184                            p[5] & 0xff, p[4] >> 8, p[4] & 0xff, p[3] >> 8);
 185                 seq_printf(seq, "  %02x   %04x%04x %04x%04x %04x%04x\n",
 186                            (p[9] >> 16) & 0xff, p[9] & 0xffff, p[8] >> 16,
 187                            p[8] & 0xffff, p[7] >> 16, p[7] & 0xffff,
 188                            p[6] >> 16);
 189         }
 190         return 0;
 191 }
 192
 193 static int cim_la_open(struct inode *inode, struct file *file)
 194 {
 195         int ret;
 196         unsigned int cfg;
 197         struct seq_tab *p;
 198         struct adapter *adap = inode->i_private;
 199
 200         ret = t4_cim_read(adap, UP_UP_DBG_LA_CFG_A, 1, &cfg);
 201         if (ret)
 202                 return ret;
 203
 204         if (is_t6(adap->params.chip)) {
 205                 /* +1 to account for integer division of CIMLA_SIZE/10 */
 206                 p = seq_open_tab(file, (adap->params.cim_la_size / 10) + 1,
 207                                  10 * sizeof(u32), 1,
 208                                  cfg & UPDBGLACAPTPCONLY_F ?
 209                                         cim_la_show_pc_t6 : cim_la_show_t6);
 210         } else {
 211                 p = seq_open_tab(file, adap->params.cim_la_size / 8,
 212                                  8 * sizeof(u32), 1,
 213                                  cfg & UPDBGLACAPTPCONLY_F ? cim_la_show_3in1 :
 214                                                              cim_la_show);
 215         }
 216         if (!p)
 217                 return -ENOMEM;
 218
 219         ret = t4_cim_read_la(adap, (u32 *)p->data, NULL);
 220         if (ret)
 221                 seq_release_private(inode, file);
 222         return ret;
 223 }
 224
 225 static const struct file_operations cim_la_fops = {
 226         .owner   = THIS_MODULE,
 227         .open    = cim_la_open,
 228         .read    = seq_read,
 229         .llseek  = seq_lseek,
 230         .release = seq_release_private
 231 };
 232
 233 static int cim_pif_la_show(struct seq_file *seq, void *v, int idx)
 234 {
 235         const u32 *p = v;
 236
 237         if (v == SEQ_START_TOKEN) {
 238                 seq_puts(seq, "Cntl ID DataBE   Addr                 Data\n");
 239         } else if (idx < CIM_PIFLA_SIZE) {
 240                 seq_printf(seq, " %02x  %02x  %04x  %08x %08x%08x%08x%08x\n",
 241                            (p[5] >> 22) & 0xff, (p[5] >> 16) & 0x3f,
 242                            p[5] & 0xffff, p[4], p[3], p[2], p[1], p[0]);
 243         } else {
 244                 if (idx == CIM_PIFLA_SIZE)
 245                         seq_puts(seq, "\nCntl ID               Data\n");
 246                 seq_printf(seq, " %02x  %02x %08x%08x%08x%08x\n",
 247                            (p[4] >> 6) & 0xff, p[4] & 0x3f,
 248                            p[3], p[2], p[1], p[0]);
 249         }
 250         return 0;
 251 }
 252
 253 static int cim_pif_la_open(struct inode *inode, struct file *file)
 254 {
 255         struct seq_tab *p;
 256         struct adapter *adap = inode->i_private;
 257
 258         p = seq_open_tab(file, 2 * CIM_PIFLA_SIZE, 6 * sizeof(u32), 1,
 259                          cim_pif_la_show);
 260         if (!p)
 261                 return -ENOMEM;
 262
 263         t4_cim_read_pif_la(adap, (u32 *)p->data,
 264                            (u32 *)p->data + 6 * CIM_PIFLA_SIZE, NULL, NULL);
 265         return 0;
 266 }
 267
 268 static const struct file_operations cim_pif_la_fops = {
 269         .owner   = THIS_MODULE,
 270         .open    = cim_pif_la_open,
 271         .read    = seq_read,
 272         .llseek  = seq_lseek,
 273         .release = seq_release_private
 274 };
 275
 276 static int cim_ma_la_show(struct seq_file *seq, void *v, int idx)
 277 {
 278         const u32 *p = v;
 279
 280         if (v == SEQ_START_TOKEN) {
 281                 seq_puts(seq, "\n");
 282         } else if (idx < CIM_MALA_SIZE) {
 283                 seq_printf(seq, "%02x%08x%08x%08x%08x\n",
 284                            p[4], p[3], p[2], p[1], p[0]);
 285         } else {
 286                 if (idx == CIM_MALA_SIZE)
 287                         seq_puts(seq,
 288                                  "\nCnt ID Tag UE       Data       RDY VLD\n");
 289                 seq_printf(seq, "%3u %2u  %x   %u %08x%08x  %u   %u\n",
 290                            (p[2] >> 10) & 0xff, (p[2] >> 7) & 7,
 291                            (p[2] >> 3) & 0xf, (p[2] >> 2) & 1,
 292                            (p[1] >> 2) | ((p[2] & 3) << 30),
 293                            (p[0] >> 2) | ((p[1] & 3) << 30), (p[0] >> 1) & 1,
 294                            p[0] & 1);
 295         }
 296         return 0;
 297 }
 298
 299 static int cim_ma_la_open(struct inode *inode, struct file *file)
 300 {
 301         struct seq_tab *p;
 302         struct adapter *adap = inode->i_private;
 303
 304         p = seq_open_tab(file, 2 * CIM_MALA_SIZE, 5 * sizeof(u32), 1,
 305                          cim_ma_la_show);
 306         if (!p)
 307                 return -ENOMEM;
 308
 309         t4_cim_read_ma_la(adap, (u32 *)p->data,
 310                           (u32 *)p->data + 5 * CIM_MALA_SIZE);
 311         return 0;
 312 }
 313
 314 static const struct file_operations cim_ma_la_fops = {
 315         .owner   = THIS_MODULE,
 316         .open    = cim_ma_la_open,
 317         .read    = seq_read,
 318         .llseek  = seq_lseek,
 319         .release = seq_release_private
 320 };
 321
 322 static int cim_qcfg_show(struct seq_file *seq, void *v)
 323 {
 324         static const char * const qname[] = {
 325                 "TP0", "TP1", "ULP", "SGE0", "SGE1", "NC-SI",
 326                 "ULP0", "ULP1", "ULP2", "ULP3", "SGE", "NC-SI",
 327                 "SGE0-RX", "SGE1-RX"
 328         };
 329
 330         int i;
 331         struct adapter *adap = seq->private;
 332         u16 base[CIM_NUM_IBQ + CIM_NUM_OBQ_T5];
 333         u16 size[CIM_NUM_IBQ + CIM_NUM_OBQ_T5];
 334         u32 stat[(4 * (CIM_NUM_IBQ + CIM_NUM_OBQ_T5))];
 335         u16 thres[CIM_NUM_IBQ];
 336         u32 obq_wr_t4[2 * CIM_NUM_OBQ], *wr;
 337         u32 obq_wr_t5[2 * CIM_NUM_OBQ_T5];
 338         u32 *p = stat;
 339         int cim_num_obq = is_t4(adap->params.chip) ?
 340                                 CIM_NUM_OBQ : CIM_NUM_OBQ_T5;
 341
 342         i = t4_cim_read(adap, is_t4(adap->params.chip) ? UP_IBQ_0_RDADDR_A :
 343                         UP_IBQ_0_SHADOW_RDADDR_A,
 344                         ARRAY_SIZE(stat), stat);
 345         if (!i) {
 346                 if (is_t4(adap->params.chip)) {
 347                         i = t4_cim_read(adap, UP_OBQ_0_REALADDR_A,
 348                                         ARRAY_SIZE(obq_wr_t4), obq_wr_t4);
 349                         wr = obq_wr_t4;
 350                 } else {
 351                         i = t4_cim_read(adap, UP_OBQ_0_SHADOW_REALADDR_A,
 352                                         ARRAY_SIZE(obq_wr_t5), obq_wr_t5);
 353                         wr = obq_wr_t5;
 354                 }
 355         }
 356         if (i)
 357                 return i;
 358
 359         t4_read_cimq_cfg(adap, base, size, thres);
 360
 361         seq_printf(seq,
 362                    "  Queue  Base  Size Thres  RdPtr WrPtr  SOP  EOP Avail\n");
 363         for (i = 0; i < CIM_NUM_IBQ; i++, p += 4)
 364                 seq_printf(seq, "%7s %5x %5u %5u %6x  %4x %4u %4u %5u\n",
 365                            qname[i], base[i], size[i], thres[i],
 366                            IBQRDADDR_G(p[0]), IBQWRADDR_G(p[1]),
 367                            QUESOPCNT_G(p[3]), QUEEOPCNT_G(p[3]),
 368                            QUEREMFLITS_G(p[2]) * 16);
 369         for ( ; i < CIM_NUM_IBQ + cim_num_obq; i++, p += 4, wr += 2)
 370                 seq_printf(seq, "%7s %5x %5u %12x  %4x %4u %4u %5u\n",
 371                            qname[i], base[i], size[i],
 372                            QUERDADDR_G(p[0]) & 0x3fff, wr[0] - base[i],
 373                            QUESOPCNT_G(p[3]), QUEEOPCNT_G(p[3]),
 374                            QUEREMFLITS_G(p[2]) * 16);
 375         return 0;
 376 }
 377
 378 static int cim_qcfg_open(struct inode *inode, struct file *file)
 379 {
 380         return single_open(file, cim_qcfg_show, inode->i_private);
 381 }
 382
 383 static const struct file_operations cim_qcfg_fops = {
 384         .owner   = THIS_MODULE,
 385         .open    = cim_qcfg_open,
 386         .read    = seq_read,
 387         .llseek  = seq_lseek,
 388         .release = single_release,
 389 };
 390
 391 static int cimq_show(struct seq_file *seq, void *v, int idx)
 392 {
 393         const u32 *p = v;
 394
 395         seq_printf(seq, "%#06x: %08x %08x %08x %08x\n", idx * 16, p[0], p[1],
 396                    p[2], p[3]);
 397         return 0;
 398 }
 399
 400 static int cim_ibq_open(struct inode *inode, struct file *file)
 401 {
 402         int ret;
 403         struct seq_tab *p;
 404         unsigned int qid = (uintptr_t)inode->i_private & 7;
 405         struct adapter *adap = inode->i_private - qid;
 406
 407         p = seq_open_tab(file, CIM_IBQ_SIZE, 4 * sizeof(u32), 0, cimq_show);
 408         if (!p)
 409                 return -ENOMEM;
 410
 411         ret = t4_read_cim_ibq(adap, qid, (u32 *)p->data, CIM_IBQ_SIZE * 4);
 412         if (ret < 0)
 413                 seq_release_private(inode, file);
 414         else
 415                 ret = 0;
 416         return ret;
 417 }
 418
 419 static const struct file_operations cim_ibq_fops = {
 420         .owner   = THIS_MODULE,
 421         .open    = cim_ibq_open,
 422         .read    = seq_read,
 423         .llseek  = seq_lseek,
 424         .release = seq_release_private
 425 };
 426
 427 static int cim_obq_open(struct inode *inode, struct file *file)
 428 {
 429         int ret;
 430         struct seq_tab *p;
 431         unsigned int qid = (uintptr_t)inode->i_private & 7;
 432         struct adapter *adap = inode->i_private - qid;
 433
 434         p = seq_open_tab(file, 6 * CIM_OBQ_SIZE, 4 * sizeof(u32), 0, cimq_show);
 435         if (!p)
 436                 return -ENOMEM;
 437
 438         ret = t4_read_cim_obq(adap, qid, (u32 *)p->data, 6 * CIM_OBQ_SIZE * 4);
 439         if (ret < 0) {
 440                 seq_release_private(inode, file);
 441         } else {
 442                 seq_tab_trim(p, ret / 4);
 443                 ret = 0;
 444         }
 445         return ret;
 446 }
 447
 448 static const struct file_operations cim_obq_fops = {
 449         .owner   = THIS_MODULE,
 450         .open    = cim_obq_open,
 451         .read    = seq_read,
 452         .llseek  = seq_lseek,
 453         .release = seq_release_private
 454 };
 455
 456 struct field_desc {
 457         const char *name;
 458         unsigned int start;
 459         unsigned int width;
 460 };
 461
 462 static void field_desc_show(struct seq_file *seq, u64 v,
 463                             const struct field_desc *p)
 464 {
 465         char buf[32];
 466         int line_size = 0;
 467
 468         while (p->name) {
 469                 u64 mask = (1ULL << p->width) - 1;
 470                 int len = scnprintf(buf, sizeof(buf), "%s: %llu", p->name,
 471                                     ((unsigned long long)v >> p->start) & mask);
 472
 473                 if (line_size + len >= 79) {
 474                         line_size = 8;
 475                         seq_puts(seq, "\n        ");
 476                 }
 477                 seq_printf(seq, "%s ", buf);
 478                 line_size += len + 1;
 479                 p++;
 480         }
 481         seq_putc(seq, '\n');
 482 }
 483
 484 static struct field_desc tp_la0[] = {
 485         { "RcfOpCodeOut", 60, 4 },
 486         { "State", 56, 4 },
 487         { "WcfState", 52, 4 },
 488         { "RcfOpcSrcOut", 50, 2 },
 489         { "CRxError", 49, 1 },
 490         { "ERxError", 48, 1 },
 491         { "SanityFailed", 47, 1 },
 492         { "SpuriousMsg", 46, 1 },
 493         { "FlushInputMsg", 45, 1 },
 494         { "FlushInputCpl", 44, 1 },
 495         { "RssUpBit", 43, 1 },
 496         { "RssFilterHit", 42, 1 },
 497         { "Tid", 32, 10 },
 498         { "InitTcb", 31, 1 },
 499         { "LineNumber", 24, 7 },
 500         { "Emsg", 23, 1 },
 501         { "EdataOut", 22, 1 },
 502         { "Cmsg", 21, 1 },
 503         { "CdataOut", 20, 1 },
 504         { "EreadPdu", 19, 1 },
 505         { "CreadPdu", 18, 1 },
 506         { "TunnelPkt", 17, 1 },
 507         { "RcfPeerFin", 16, 1 },
 508         { "RcfReasonOut", 12, 4 },
 509         { "TxCchannel", 10, 2 },
 510         { "RcfTxChannel", 8, 2 },
 511         { "RxEchannel", 6, 2 },
 512         { "RcfRxChannel", 5, 1 },
 513         { "RcfDataOutSrdy", 4, 1 },
 514         { "RxDvld", 3, 1 },
 515         { "RxOoDvld", 2, 1 },
 516         { "RxCongestion", 1, 1 },
 517         { "TxCongestion", 0, 1 },
 518         { NULL }
 519 };
 520
 521 static int tp_la_show(struct seq_file *seq, void *v, int idx)
 522 {
 523         const u64 *p = v;
 524
 525         field_desc_show(seq, *p, tp_la0);
 526         return 0;
 527 }
 528
 529 static int tp_la_show2(struct seq_file *seq, void *v, int idx)
 530 {
 531         const u64 *p = v;
 532
 533         if (idx)
 534                 seq_putc(seq, '\n');
 535         field_desc_show(seq, p[0], tp_la0);
 536         if (idx < (TPLA_SIZE / 2 - 1) || p[1] != ~0ULL)
 537                 field_desc_show(seq, p[1], tp_la0);
 538         return 0;
 539 }
 540
 541 static int tp_la_show3(struct seq_file *seq, void *v, int idx)
 542 {
 543         static struct field_desc tp_la1[] = {
 544                 { "CplCmdIn", 56, 8 },
 545                 { "CplCmdOut", 48, 8 },
 546                 { "ESynOut", 47, 1 },
 547                 { "EAckOut", 46, 1 },
 548                 { "EFinOut", 45, 1 },
 549                 { "ERstOut", 44, 1 },
 550                 { "SynIn", 43, 1 },
 551                 { "AckIn", 42, 1 },
 552                 { "FinIn", 41, 1 },
 553                 { "RstIn", 40, 1 },
 554                 { "DataIn", 39, 1 },
 555                 { "DataInVld", 38, 1 },
 556                 { "PadIn", 37, 1 },
 557                 { "RxBufEmpty", 36, 1 },
 558                 { "RxDdp", 35, 1 },
 559                 { "RxFbCongestion", 34, 1 },
 560                 { "TxFbCongestion", 33, 1 },
 561                 { "TxPktSumSrdy", 32, 1 },
 562                 { "RcfUlpType", 28, 4 },
 563                 { "Eread", 27, 1 },
 564                 { "Ebypass", 26, 1 },
 565                 { "Esave", 25, 1 },
 566                 { "Static0", 24, 1 },
 567                 { "Cread", 23, 1 },
 568                 { "Cbypass", 22, 1 },
 569                 { "Csave", 21, 1 },
 570                 { "CPktOut", 20, 1 },
 571                 { "RxPagePoolFull", 18, 2 },
 572                 { "RxLpbkPkt", 17, 1 },
 573                 { "TxLpbkPkt", 16, 1 },
 574                 { "RxVfValid", 15, 1 },
 575                 { "SynLearned", 14, 1 },
 576                 { "SetDelEntry", 13, 1 },
 577                 { "SetInvEntry", 12, 1 },
 578                 { "CpcmdDvld", 11, 1 },
 579                 { "CpcmdSave", 10, 1 },
 580                 { "RxPstructsFull", 8, 2 },
 581                 { "EpcmdDvld", 7, 1 },
 582                 { "EpcmdFlush", 6, 1 },
 583                 { "EpcmdTrimPrefix", 5, 1 },
 584                 { "EpcmdTrimPostfix", 4, 1 },
 585                 { "ERssIp4Pkt", 3, 1 },
 586                 { "ERssIp6Pkt", 2, 1 },
 587                 { "ERssTcpUdpPkt", 1, 1 },
 588                 { "ERssFceFipPkt", 0, 1 },
 589                 { NULL }
 590         };
 591         static struct field_desc tp_la2[] = {
 592                 { "CplCmdIn", 56, 8 },
 593                 { "MpsVfVld", 55, 1 },
 594                 { "MpsPf", 52, 3 },
 595                 { "MpsVf", 44, 8 },
 596                 { "SynIn", 43, 1 },
 597                 { "AckIn", 42, 1 },
 598                 { "FinIn", 41, 1 },
 599                 { "RstIn", 40, 1 },
 600                 { "DataIn", 39, 1 },
 601                 { "DataInVld", 38, 1 },
 602                 { "PadIn", 37, 1 },
 603                 { "RxBufEmpty", 36, 1 },
 604                 { "RxDdp", 35, 1 },
 605                 { "RxFbCongestion", 34, 1 },
 606                 { "TxFbCongestion", 33, 1 },
 607                 { "TxPktSumSrdy", 32, 1 },
 608                 { "RcfUlpType", 28, 4 },
 609                 { "Eread", 27, 1 },
 610                 { "Ebypass", 26, 1 },
 611                 { "Esave", 25, 1 },
 612                 { "Static0", 24, 1 },
 613                 { "Cread", 23, 1 },
 614                 { "Cbypass", 22, 1 },
 615                 { "Csave", 21, 1 },
 616                 { "CPktOut", 20, 1 },
 617                 { "RxPagePoolFull", 18, 2 },
 618                 { "RxLpbkPkt", 17, 1 },
 619                 { "TxLpbkPkt", 16, 1 },
 620                 { "RxVfValid", 15, 1 },
 621                 { "SynLearned", 14, 1 },
 622                 { "SetDelEntry", 13, 1 },
 623                 { "SetInvEntry", 12, 1 },
 624                 { "CpcmdDvld", 11, 1 },
 625                 { "CpcmdSave", 10, 1 },
 626                 { "RxPstructsFull", 8, 2 },
 627                 { "EpcmdDvld", 7, 1 },
 628                 { "EpcmdFlush", 6, 1 },
 629                 { "EpcmdTrimPrefix", 5, 1 },
 630                 { "EpcmdTrimPostfix", 4, 1 },
 631                 { "ERssIp4Pkt", 3, 1 },
 632                 { "ERssIp6Pkt", 2, 1 },
 633                 { "ERssTcpUdpPkt", 1, 1 },
 634                 { "ERssFceFipPkt", 0, 1 },
 635                 { NULL }
 636         };
 637         const u64 *p = v;
 638
 639         if (idx)
 640                 seq_putc(seq, '\n');
 641         field_desc_show(seq, p[0], tp_la0);
 642         if (idx < (TPLA_SIZE / 2 - 1) || p[1] != ~0ULL)
 643                 field_desc_show(seq, p[1], (p[0] & BIT(17)) ? tp_la2 : tp_la1);
 644         return 0;
 645 }
 646
 647 static int tp_la_open(struct inode *inode, struct file *file)
 648 {
 649         struct seq_tab *p;
 650         struct adapter *adap = inode->i_private;
 651
 652         switch (DBGLAMODE_G(t4_read_reg(adap, TP_DBG_LA_CONFIG_A))) {
 653         case 2:
 654                 p = seq_open_tab(file, TPLA_SIZE / 2, 2 * sizeof(u64), 0,
 655                                  tp_la_show2);
 656                 break;
 657         case 3:
 658                 p = seq_open_tab(file, TPLA_SIZE / 2, 2 * sizeof(u64), 0,
 659                                  tp_la_show3);
 660                 break;
 661         default:
 662                 p = seq_open_tab(file, TPLA_SIZE, sizeof(u64), 0, tp_la_show);
 663         }
 664         if (!p)
 665                 return -ENOMEM;
 666
 667         t4_tp_read_la(adap, (u64 *)p->data, NULL);
 668         return 0;
 669 }
 670
 671 static ssize_t tp_la_write(struct file *file, const char __user *buf,
 672                            size_t count, loff_t *pos)
 673 {
 674         int err;
 675         char s[32];
 676         unsigned long val;
 677         size_t size = min(sizeof(s) - 1, count);
 678         struct adapter *adap = file_inode(file)->i_private;
 679
 680         if (copy_from_user(s, buf, size))
 681                 return -EFAULT;
 682         s[size] = '\0';
 683         err = kstrtoul(s, 0, &val);
 684         if (err)
 685                 return err;
 686         if (val > 0xffff)
 687                 return -EINVAL;
 688         adap->params.tp.la_mask = val << 16;
 689         t4_set_reg_field(adap, TP_DBG_LA_CONFIG_A, 0xffff0000U,
 690                          adap->params.tp.la_mask);
 691         return count;
 692 }
 693
 694 static const struct file_operations tp_la_fops = {
 695         .owner   = THIS_MODULE,
 696         .open    = tp_la_open,
 697         .read    = seq_read,
 698         .llseek  = seq_lseek,
 699         .release = seq_release_private,
 700         .write   = tp_la_write
 701 };
 702
 703 static int ulprx_la_show(struct seq_file *seq, void *v, int idx)
 704 {
 705         const u32 *p = v;
 706
 707         if (v == SEQ_START_TOKEN)
 708                 seq_puts(seq, "      Pcmd        Type   Message"
 709                          "                Data\n");
 710         else
 711                 seq_printf(seq, "%08x%08x  %4x  %08x  %08x%08x%08x%08x\n",
 712                            p[1], p[0], p[2], p[3], p[7], p[6], p[5], p[4]);
 713         return 0;
 714 }
 715
 716 static int ulprx_la_open(struct inode *inode, struct file *file)
 717 {
 718         struct seq_tab *p;
 719         struct adapter *adap = inode->i_private;
 720
 721         p = seq_open_tab(file, ULPRX_LA_SIZE, 8 * sizeof(u32), 1,
 722                          ulprx_la_show);
 723         if (!p)
 724                 return -ENOMEM;
 725
 726         t4_ulprx_read_la(adap, (u32 *)p->data);
 727         return 0;
 728 }
 729
 730 static const struct file_operations ulprx_la_fops = {
 731         .owner   = THIS_MODULE,
 732         .open    = ulprx_la_open,
 733         .read    = seq_read,
 734         .llseek  = seq_lseek,
 735         .release = seq_release_private
 736 };
 737
 738 /* Show the PM memory stats.  These stats include:
 739  *
 740  * TX:
 741  *   Read: memory read operation
 742  *   Write Bypass: cut-through
 743  *   Bypass + mem: cut-through and save copy
 744  *
 745  * RX:
 746  *   Read: memory read
 747  *   Write Bypass: cut-through
 748  *   Flush: payload trim or drop
 749  */
 750 static int pm_stats_show(struct seq_file *seq, void *v)
 751 {
 752         static const char * const tx_pm_stats[] = {
 753                 "Read:", "Write bypass:", "Write mem:", "Bypass + mem:"
 754         };
 755         static const char * const rx_pm_stats[] = {
 756                 "Read:", "Write bypass:", "Write mem:", "Flush:"
 757         };
 758
 759         int i;
 760         u32 tx_cnt[T6_PM_NSTATS], rx_cnt[T6_PM_NSTATS];
 761         u64 tx_cyc[T6_PM_NSTATS], rx_cyc[T6_PM_NSTATS];
 762         struct adapter *adap = seq->private;
 763
 764         t4_pmtx_get_stats(adap, tx_cnt, tx_cyc);
 765         t4_pmrx_get_stats(adap, rx_cnt, rx_cyc);
 766
 767         seq_printf(seq, "%13s %10s  %20s\n", " ", "Tx pcmds", "Tx bytes");
 768         for (i = 0; i < PM_NSTATS - 1; i++)
 769                 seq_printf(seq, "%-13s %10u  %20llu\n",
 770                            tx_pm_stats[i], tx_cnt[i], tx_cyc[i]);
 771
 772         seq_printf(seq, "%13s %10s  %20s\n", " ", "Rx pcmds", "Rx bytes");
 773         for (i = 0; i < PM_NSTATS - 1; i++)
 774                 seq_printf(seq, "%-13s %10u  %20llu\n",
 775                            rx_pm_stats[i], rx_cnt[i], rx_cyc[i]);
 776
 777         if (CHELSIO_CHIP_VERSION(adap->params.chip) > CHELSIO_T5) {
 778                 /* In T5 the granularity of the total wait is too fine.
 779                  * It is not useful as it reaches the max value too fast.
 780                  * Hence display this Input FIFO wait for T6 onwards.
 781                  */
 782                 seq_printf(seq, "%13s %10s  %20s\n",
 783                            " ", "Total wait", "Total Occupancy");
 784                 seq_printf(seq, "Tx FIFO wait  %10u  %20llu\n",
 785                            tx_cnt[i], tx_cyc[i]);
 786                 seq_printf(seq, "Rx FIFO wait  %10u  %20llu\n",
 787                            rx_cnt[i], rx_cyc[i]);
 788
 789                 /* Skip index 6 as there is nothing useful ihere */
 790                 i += 2;
 791
 792                 /* At index 7, a new stat for read latency (count, total wait)
 793                  * is added.
 794                  */
 795                 seq_printf(seq, "%13s %10s  %20s\n",
 796                            " ", "Reads", "Total wait");
 797                 seq_printf(seq, "Tx latency    %10u  %20llu\n",
 798                            tx_cnt[i], tx_cyc[i]);
 799                 seq_printf(seq, "Rx latency    %10u  %20llu\n",
 800                            rx_cnt[i], rx_cyc[i]);
 801         }
 802         return 0;
 803 }
 804
 805 static int pm_stats_open(struct inode *inode, struct file *file)
 806 {
 807         return single_open(file, pm_stats_show, inode->i_private);
 808 }
 809
 810 static ssize_t pm_stats_clear(struct file *file, const char __user *buf,
 811                               size_t count, loff_t *pos)
 812 {
 813         struct adapter *adap = file_inode(file)->i_private;
 814
 815         t4_write_reg(adap, PM_RX_STAT_CONFIG_A, 0);
 816         t4_write_reg(adap, PM_TX_STAT_CONFIG_A, 0);
 817         return count;
 818 }
 819
 820 static const struct file_operations pm_stats_debugfs_fops = {
 821         .owner   = THIS_MODULE,
 822         .open    = pm_stats_open,
 823         .read    = seq_read,
 824         .llseek  = seq_lseek,
 825         .release = single_release,
 826         .write   = pm_stats_clear
 827 };
 828
 829 static int tx_rate_show(struct seq_file *seq, void *v)
 830 {
 831         u64 nrate[NCHAN], orate[NCHAN];
 832         struct adapter *adap = seq->private;
 833
 834         t4_get_chan_txrate(adap, nrate, orate);
 835         if (adap->params.arch.nchan == NCHAN) {
 836                 seq_puts(seq, "              channel 0   channel 1   "
 837                          "channel 2   channel 3\n");
 838                 seq_printf(seq, "NIC B/s:     %10llu  %10llu  %10llu  %10llu\n",
 839                            (unsigned long long)nrate[0],
 840                            (unsigned long long)nrate[1],
 841                            (unsigned long long)nrate[2],
 842                            (unsigned long long)nrate[3]);
 843                 seq_printf(seq, "Offload B/s: %10llu  %10llu  %10llu  %10llu\n",
 844                            (unsigned long long)orate[0],
 845                            (unsigned long long)orate[1],
 846                            (unsigned long long)orate[2],
 847                            (unsigned long long)orate[3]);
 848         } else {
 849                 seq_puts(seq, "              channel 0   channel 1\n");
 850                 seq_printf(seq, "NIC B/s:     %10llu  %10llu\n",
 851                            (unsigned long long)nrate[0],
 852                            (unsigned long long)nrate[1]);
 853                 seq_printf(seq, "Offload B/s: %10llu  %10llu\n",
 854                            (unsigned long long)orate[0],
 855                            (unsigned long long)orate[1]);
 856         }
 857         return 0;
 858 }
 859
 860 DEFINE_SIMPLE_DEBUGFS_FILE(tx_rate);
 861
 862 static int cctrl_tbl_show(struct seq_file *seq, void *v)
 863 {
 864         static const char * const dec_fac[] = {
 865                 "0.5", "0.5625", "0.625", "0.6875", "0.75", "0.8125", "0.875",
 866                 "0.9375" };
 867
 868         int i;
 869         u16 (*incr)[NCCTRL_WIN];
 870         struct adapter *adap = seq->private;
 871
 872         incr = kmalloc(sizeof(*incr) * NMTUS, GFP_KERNEL);
 873         if (!incr)
 874                 return -ENOMEM;
 875
 876         t4_read_cong_tbl(adap, incr);
 877
 878         for (i = 0; i < NCCTRL_WIN; ++i) {
 879                 seq_printf(seq, "%2d: %4u %4u %4u %4u %4u %4u %4u %4u\n", i,
 880                            incr[0][i], incr[1][i], incr[2][i], incr[3][i],
 881                            incr[4][i], incr[5][i], incr[6][i], incr[7][i]);
 882                 seq_printf(seq, "%8u %4u %4u %4u %4u %4u %4u %4u %5u %s\n",
 883                            incr[8][i], incr[9][i], incr[10][i], incr[11][i],
 884                            incr[12][i], incr[13][i], incr[14][i], incr[15][i],
 885                            adap->params.a_wnd[i],
 886                            dec_fac[adap->params.b_wnd[i]]);
 887         }
 888
 889         kfree(incr);
 890         return 0;
 891 }
 892
 893 DEFINE_SIMPLE_DEBUGFS_FILE(cctrl_tbl);
 894
 895 /* Format a value in a unit that differs from the value's native unit by the
 896  * given factor.
 897  */
 898 static char *unit_conv(char *buf, size_t len, unsigned int val,
 899                        unsigned int factor)
 900 {
 901         unsigned int rem = val % factor;
 902
 903         if (rem == 0) {
 904                 snprintf(buf, len, "%u", val / factor);
 905         } else {
 906                 while (rem % 10 == 0)
 907                         rem /= 10;
 908                 snprintf(buf, len, "%u.%u", val / factor, rem);
 909         }
 910         return buf;
 911 }
 912
 913 static int clk_show(struct seq_file *seq, void *v)
 914 {
 915         char buf[32];
 916         struct adapter *adap = seq->private;
 917         unsigned int cclk_ps = 1000000000 / adap->params.vpd.cclk;  /* in ps */
 918         u32 res = t4_read_reg(adap, TP_TIMER_RESOLUTION_A);
 919         unsigned int tre = TIMERRESOLUTION_G(res);
 920         unsigned int dack_re = DELAYEDACKRESOLUTION_G(res);
 921         unsigned long long tp_tick_us = (cclk_ps << tre) / 1000000; /* in us */
 922
 923         seq_printf(seq, "Core clock period: %s ns\n",
 924                    unit_conv(buf, sizeof(buf), cclk_ps, 1000));
 925         seq_printf(seq, "TP timer tick: %s us\n",
 926                    unit_conv(buf, sizeof(buf), (cclk_ps << tre), 1000000));
 927         seq_printf(seq, "TCP timestamp tick: %s us\n",
 928                    unit_conv(buf, sizeof(buf),
 929                              (cclk_ps << TIMESTAMPRESOLUTION_G(res)), 1000000));
 930         seq_printf(seq, "DACK tick: %s us\n",
 931                    unit_conv(buf, sizeof(buf), (cclk_ps << dack_re), 1000000));
 932         seq_printf(seq, "DACK timer: %u us\n",
 933                    ((cclk_ps << dack_re) / 1000000) *
 934                    t4_read_reg(adap, TP_DACK_TIMER_A));
 935         seq_printf(seq, "Retransmit min: %llu us\n",
 936                    tp_tick_us * t4_read_reg(adap, TP_RXT_MIN_A));
 937         seq_printf(seq, "Retransmit max: %llu us\n",
 938                    tp_tick_us * t4_read_reg(adap, TP_RXT_MAX_A));
 939         seq_printf(seq, "Persist timer min: %llu us\n",
 940                    tp_tick_us * t4_read_reg(adap, TP_PERS_MIN_A));
 941         seq_printf(seq, "Persist timer max: %llu us\n",
 942                    tp_tick_us * t4_read_reg(adap, TP_PERS_MAX_A));
 943         seq_printf(seq, "Keepalive idle timer: %llu us\n",
 944                    tp_tick_us * t4_read_reg(adap, TP_KEEP_IDLE_A));
 945         seq_printf(seq, "Keepalive interval: %llu us\n",
 946                    tp_tick_us * t4_read_reg(adap, TP_KEEP_INTVL_A));
 947         seq_printf(seq, "Initial SRTT: %llu us\n",
 948                    tp_tick_us * INITSRTT_G(t4_read_reg(adap, TP_INIT_SRTT_A)));
 949         seq_printf(seq, "FINWAIT2 timer: %llu us\n",
 950                    tp_tick_us * t4_read_reg(adap, TP_FINWAIT2_TIMER_A));
 951
 952         return 0;
 953 }
 954
 955 DEFINE_SIMPLE_DEBUGFS_FILE(clk);
 956
 957 /* Firmware Device Log dump. */
 958 static const char * const devlog_level_strings[] = {
 959         [FW_DEVLOG_LEVEL_EMERG]         = "EMERG",
 960         [FW_DEVLOG_LEVEL_CRIT]          = "CRIT",
 961         [FW_DEVLOG_LEVEL_ERR]           = "ERR",
 962         [FW_DEVLOG_LEVEL_NOTICE]        = "NOTICE",
 963         [FW_DEVLOG_LEVEL_INFO]          = "INFO",
 964         [FW_DEVLOG_LEVEL_DEBUG]         = "DEBUG"
 965 };
 966
 967 static const char * const devlog_facility_strings[] = {
 968         [FW_DEVLOG_FACILITY_CORE]       = "CORE",
 969         [FW_DEVLOG_FACILITY_CF]         = "CF",
 970         [FW_DEVLOG_FACILITY_SCHED]      = "SCHED",
 971         [FW_DEVLOG_FACILITY_TIMER]      = "TIMER",
 972         [FW_DEVLOG_FACILITY_RES]        = "RES",
 973         [FW_DEVLOG_FACILITY_HW]         = "HW",
 974         [FW_DEVLOG_FACILITY_FLR]        = "FLR",
 975         [FW_DEVLOG_FACILITY_DMAQ]       = "DMAQ",
 976         [FW_DEVLOG_FACILITY_PHY]        = "PHY",
 977         [FW_DEVLOG_FACILITY_MAC]        = "MAC",
 978         [FW_DEVLOG_FACILITY_PORT]       = "PORT",
 979         [FW_DEVLOG_FACILITY_VI]         = "VI",
 980         [FW_DEVLOG_FACILITY_FILTER]     = "FILTER",
 981         [FW_DEVLOG_FACILITY_ACL]        = "ACL",
 982         [FW_DEVLOG_FACILITY_TM]         = "TM",
 983         [FW_DEVLOG_FACILITY_QFC]        = "QFC",
 984         [FW_DEVLOG_FACILITY_DCB]        = "DCB",
 985         [FW_DEVLOG_FACILITY_ETH]        = "ETH",
 986         [FW_DEVLOG_FACILITY_OFLD]       = "OFLD",
 987         [FW_DEVLOG_FACILITY_RI]         = "RI",
 988         [FW_DEVLOG_FACILITY_ISCSI]      = "ISCSI",
 989         [FW_DEVLOG_FACILITY_FCOE]       = "FCOE",
 990         [FW_DEVLOG_FACILITY_FOISCSI]    = "FOISCSI",
 991         [FW_DEVLOG_FACILITY_FOFCOE]     = "FOFCOE"
 992 };
 993
 994 /* Information gathered by Device Log Open routine for the display routine.
 995  */
 996 struct devlog_info {
 997         unsigned int nentries;          /* number of entries in log[] */
 998         unsigned int first;             /* first [temporal] entry in log[] */
 999         struct fw_devlog_e log[0];      /* Firmware Device Log */
1000 };
1001
1002 /* Dump a Firmaware Device Log entry.
1003  */
1004 static int devlog_show(struct seq_file *seq, void *v)
1005 {
1006         if (v == SEQ_START_TOKEN)
1007                 seq_printf(seq, "%10s  %15s  %8s  %8s  %s\n",
1008                            "Seq#", "Tstamp", "Level", "Facility", "Message");
1009         else {
1010                 struct devlog_info *dinfo = seq->private;
1011                 int fidx = (uintptr_t)v - 2;
1012                 unsigned long index;
1013                 struct fw_devlog_e *e;
1014
1015                 /* Get a pointer to the log entry to display.  Skip unused log
1016                  * entries.
1017                  */
1018                 index = dinfo->first + fidx;
1019                 if (index >= dinfo->nentries)
1020                         index -= dinfo->nentries;
1021                 e = &dinfo->log[index];
1022                 if (e->timestamp == 0)
1023                         return 0;
1024
1025                 /* Print the message.  This depends on the firmware using
1026                  * exactly the same formating strings as the kernel so we may
1027                  * eventually have to put a format interpreter in here ...
1028                  */
1029                 seq_printf(seq, "%10d  %15llu  %8s  %8s  ",
1030                            be32_to_cpu(e->seqno),
1031                            be64_to_cpu(e->timestamp),
1032                            (e->level < ARRAY_SIZE(devlog_level_strings)
1033                             ? devlog_level_strings[e->level]
1034                             : "UNKNOWN"),
1035                            (e->facility < ARRAY_SIZE(devlog_facility_strings)
1036                             ? devlog_facility_strings[e->facility]
1037                             : "UNKNOWN"));
1038                 seq_printf(seq, e->fmt,
1039                            be32_to_cpu(e->params[0]),
1040                            be32_to_cpu(e->params[1]),
1041                            be32_to_cpu(e->params[2]),
1042                            be32_to_cpu(e->params[3]),
1043                            be32_to_cpu(e->params[4]),
1044                            be32_to_cpu(e->params[5]),
1045                            be32_to_cpu(e->params[6]),
1046                            be32_to_cpu(e->params[7]));
1047         }
1048         return 0;
1049 }
1050
1051 /* Sequential File Operations for Device Log.
1052  */
1053 static inline void *devlog_get_idx(struct devlog_info *dinfo, loff_t pos)
1054 {
1055         if (pos > dinfo->nentries)
1056                 return NULL;
1057
1058         return (void *)(uintptr_t)(pos + 1);
1059 }
1060
1061 static void *devlog_start(struct seq_file *seq, loff_t *pos)
1062 {
1063         struct devlog_info *dinfo = seq->private;
1064
1065         return (*pos
1066                 ? devlog_get_idx(dinfo, *pos)
1067                 : SEQ_START_TOKEN);
1068 }
1069
1070 static void *devlog_next(struct seq_file *seq, void *v, loff_t *pos)
1071 {
1072         struct devlog_info *dinfo = seq->private;
1073
1074         (*pos)++;
1075         return devlog_get_idx(dinfo, *pos);
1076 }
1077
1078 static void devlog_stop(struct seq_file *seq, void *v)
1079 {
1080 }
1081
1082 static const struct seq_operations devlog_seq_ops = {
1083         .start = devlog_start,
1084         .next  = devlog_next,
1085         .stop  = devlog_stop,
1086         .show  = devlog_show
1087 };
1088
1089 /* Set up for reading the firmware's device log.  We read the entire log here
1090  * and then display it incrementally in devlog_show().
1091  */
1092 static int devlog_open(struct inode *inode, struct file *file)
1093 {
1094         struct adapter *adap = inode->i_private;
1095         struct devlog_params *dparams = &adap->params.devlog;
1096         struct devlog_info *dinfo;
1097         unsigned int index;
1098         u32 fseqno;
1099         int ret;
1100
1101         /* If we don't know where the log is we can't do anything.
1102          */
1103         if (dparams->start == 0)
1104                 return -ENXIO;
1105
1106         /* Allocate the space to read in the firmware's device log and set up
1107          * for the iterated call to our display function.
1108          */
1109         dinfo = __seq_open_private(file, &devlog_seq_ops,
1110                                    sizeof(*dinfo) + dparams->size);
1111         if (!dinfo)
1112                 return -ENOMEM;
1113
1114         /* Record the basic log buffer information and read in the raw log.
1115          */
1116         dinfo->nentries = (dparams->size / sizeof(struct fw_devlog_e));
1117         dinfo->first = 0;
1118         spin_lock(&adap->win0_lock);
1119         ret = t4_memory_rw(adap, adap->params.drv_memwin, dparams->memtype,
1120                            dparams->start, dparams->size, (__be32 *)dinfo->log,
1121                            T4_MEMORY_READ);
1122         spin_unlock(&adap->win0_lock);
1123         if (ret) {
1124                 seq_release_private(inode, file);
1125                 return ret;
1126         }
1127
1128         /* Find the earliest (lowest Sequence Number) log entry in the
1129          * circular Device Log.
1130          */
1131         for (fseqno = ~((u32)0), index = 0; index < dinfo->nentries; index++) {
1132                 struct fw_devlog_e *e = &dinfo->log[index];
1133                 __u32 seqno;
1134
1135                 if (e->timestamp == 0)
1136                         continue;
1137
1138                 seqno = be32_to_cpu(e->seqno);
1139                 if (seqno < fseqno) {
1140                         fseqno = seqno;
1141                         dinfo->first = index;
1142                 }
1143         }
1144         return 0;
1145 }
1146
1147 static const struct file_operations devlog_fops = {
1148         .owner   = THIS_MODULE,
1149         .open    = devlog_open,
1150         .read    = seq_read,
1151         .llseek  = seq_lseek,
1152         .release = seq_release_private
1153 };
1154
1155 static int mbox_show(struct seq_file *seq, void *v)
1156 {
1157         static const char * const owner[] = { "none", "FW", "driver",
1158                                               "unknown", "<unread>" };
1159
1160         int i;
1161         unsigned int mbox = (uintptr_t)seq->private & 7;
1162         struct adapter *adap = seq->private - mbox;
1163         void __iomem *addr = adap->regs + PF_REG(mbox, CIM_PF_MAILBOX_DATA_A);
1164
1165         /* For T4 we don't have a shadow copy of the Mailbox Control register.
1166          * And since reading that real register causes a side effect of
1167          * granting ownership, we're best of simply not reading it at all.
1168          */
1169         if (is_t4(adap->params.chip)) {
1170                 i = 4; /* index of "<unread>" */
1171         } else {
1172                 unsigned int ctrl_reg = CIM_PF_MAILBOX_CTRL_SHADOW_COPY_A;
1173                 void __iomem *ctrl = adap->regs + PF_REG(mbox, ctrl_reg);
1174
1175                 i = MBOWNER_G(readl(ctrl));
1176         }
1177
1178         seq_printf(seq, "mailbox owned by %s\n\n", owner[i]);
1179
1180         for (i = 0; i < MBOX_LEN; i += 8)
1181                 seq_printf(seq, "%016llx\n",
1182                            (unsigned long long)readq(addr + i));
1183         return 0;
1184 }
1185
1186 static int mbox_open(struct inode *inode, struct file *file)
1187 {
1188         return single_open(file, mbox_show, inode->i_private);
1189 }
1190
1191 static ssize_t mbox_write(struct file *file, const char __user *buf,
1192                           size_t count, loff_t *pos)
1193 {
1194         int i;
1195         char c = '\n', s[256];
1196         unsigned long long data[8];
1197         const struct inode *ino;
1198         unsigned int mbox;
1199         struct adapter *adap;
1200         void __iomem *addr;
1201         void __iomem *ctrl;
1202
1203         if (count > sizeof(s) - 1 || !count)
1204                 return -EINVAL;
1205         if (copy_from_user(s, buf, count))
1206                 return -EFAULT;
1207         s[count] = '\0';
1208
1209         if (sscanf(s, "%llx %llx %llx %llx %llx %llx %llx %llx%c", &data[0],
1210                    &data[1], &data[2], &data[3], &data[4], &data[5], &data[6],
1211                    &data[7], &c) < 8 || c != '\n')
1212                 return -EINVAL;
1213
1214         ino = file_inode(file);
1215         mbox = (uintptr_t)ino->i_private & 7;
1216         adap = ino->i_private - mbox;
1217         addr = adap->regs + PF_REG(mbox, CIM_PF_MAILBOX_DATA_A);
1218         ctrl = addr + MBOX_LEN;
1219
1220         if (MBOWNER_G(readl(ctrl)) != X_MBOWNER_PL)
1221                 return -EBUSY;
1222
1223         for (i = 0; i < 8; i++)
1224                 writeq(data[i], addr + 8 * i);
1225
1226         writel(MBMSGVALID_F | MBOWNER_V(X_MBOWNER_FW), ctrl);
1227         return count;
1228 }
1229
1230 static const struct file_operations mbox_debugfs_fops = {
1231         .owner   = THIS_MODULE,
1232         .open    = mbox_open,
1233         .read    = seq_read,
1234         .llseek  = seq_lseek,
1235         .release = single_release,
1236         .write   = mbox_write
1237 };
1238
1239 static int mps_trc_show(struct seq_file *seq, void *v)
1240 {
1241         int enabled, i;
1242         struct trace_params tp;
1243         unsigned int trcidx = (uintptr_t)seq->private & 3;
1244         struct adapter *adap = seq->private - trcidx;
1245
1246         t4_get_trace_filter(adap, &tp, trcidx, &enabled);
1247         if (!enabled) {
1248                 seq_puts(seq, "tracer is disabled\n");
1249                 return 0;
1250         }
1251
1252         if (tp.skip_ofst * 8 >= TRACE_LEN) {
1253                 dev_err(adap->pdev_dev, "illegal trace pattern skip offset\n");
1254                 return -EINVAL;
1255         }
1256         if (tp.port < 8) {
1257                 i = adap->chan_map[tp.port & 3];
1258                 if (i >= MAX_NPORTS) {
1259                         dev_err(adap->pdev_dev, "tracer %u is assigned "
1260                                 "to non-existing port\n", trcidx);
1261                         return -EINVAL;
1262                 }
1263                 seq_printf(seq, "tracer is capturing %s %s, ",
1264                            adap->port[i]->name, tp.port < 4 ? "Rx" : "Tx");
1265         } else
1266                 seq_printf(seq, "tracer is capturing loopback %d, ",
1267                            tp.port - 8);
1268         seq_printf(seq, "snap length: %u, min length: %u\n", tp.snap_len,
1269                    tp.min_len);
1270         seq_printf(seq, "packets captured %smatch filter\n",
1271                    tp.invert ? "do not " : "");
1272
1273         if (tp.skip_ofst) {
1274                 seq_puts(seq, "filter pattern: ");
1275                 for (i = 0; i < tp.skip_ofst * 2; i += 2)
1276                         seq_printf(seq, "%08x%08x", tp.data[i], tp.data[i + 1]);
1277                 seq_putc(seq, '/');
1278                 for (i = 0; i < tp.skip_ofst * 2; i += 2)
1279                         seq_printf(seq, "%08x%08x", tp.mask[i], tp.mask[i + 1]);
1280                 seq_puts(seq, "@0\n");
1281         }
1282
1283         seq_puts(seq, "filter pattern: ");
1284         for (i = tp.skip_ofst * 2; i < TRACE_LEN / 4; i += 2)
1285                 seq_printf(seq, "%08x%08x", tp.data[i], tp.data[i + 1]);
1286         seq_putc(seq, '/');
1287         for (i = tp.skip_ofst * 2; i < TRACE_LEN / 4; i += 2)
1288                 seq_printf(seq, "%08x%08x", tp.mask[i], tp.mask[i + 1]);
1289         seq_printf(seq, "@%u\n", (tp.skip_ofst + tp.skip_len) * 8);
1290         return 0;
1291 }
1292
1293 static int mps_trc_open(struct inode *inode, struct file *file)
1294 {
1295         return single_open(file, mps_trc_show, inode->i_private);
1296 }
1297
1298 static unsigned int xdigit2int(unsigned char c)
1299 {
1300         return isdigit(c) ? c - '0' : tolower(c) - 'a' + 10;
1301 }
1302
1303 #define TRC_PORT_NONE 0xff
1304 #define TRC_RSS_ENABLE 0x33
1305 #define TRC_RSS_DISABLE 0x13
1306
1307 /* Set an MPS trace filter.  Syntax is:
1308  *
1309  * disable
1310  *
1311  * to disable tracing, or
1312  *
1313  * interface qid=<qid no> [snaplen=<val>] [minlen=<val>] [not] [<pattern>]...
1314  *
1315  * where interface is one of rxN, txN, or loopbackN, N = 0..3, qid can be one
1316  * of the NIC's response qid obtained from sge_qinfo and pattern has the form
1317  *
1318  * <pattern data>[/<pattern mask>][@<anchor>]
1319  *
1320  * Up to 2 filter patterns can be specified.  If 2 are supplied the first one
1321  * must be anchored at 0.  An omited mask is taken as a mask of 1s, an omitted
1322  * anchor is taken as 0.
1323  */
1324 static ssize_t mps_trc_write(struct file *file, const char __user *buf,
1325                              size_t count, loff_t *pos)
1326 {
1327         int i, enable, ret;
1328         u32 *data, *mask;
1329         struct trace_params tp;
1330         const struct inode *ino;
1331         unsigned int trcidx;
1332         char *s, *p, *word, *end;
1333         struct adapter *adap;
1334         u32 j;
1335
1336         ino = file_inode(file);
1337         trcidx = (uintptr_t)ino->i_private & 3;
1338         adap = ino->i_private - trcidx;
1339
1340         /* Don't accept input more than 1K, can't be anything valid except lots
1341          * of whitespace.  Well, use less.
1342          */
1343         if (count > 1024)
1344                 return -EFBIG;
1345         p = s = kzalloc(count + 1, GFP_USER);
1346         if (!s)
1347                 return -ENOMEM;
1348         if (copy_from_user(s, buf, count)) {
1349                 count = -EFAULT;
1350                 goto out;
1351         }
1352
1353         if (s[count - 1] == '\n')
1354                 s[count - 1] = '\0';
1355
1356         enable = strcmp("disable", s) != 0;
1357         if (!enable)
1358                 goto apply;
1359
1360         /* enable or disable trace multi rss filter */
1361         if (adap->trace_rss)
1362                 t4_write_reg(adap, MPS_TRC_CFG_A, TRC_RSS_ENABLE);
1363         else
1364                 t4_write_reg(adap, MPS_TRC_CFG_A, TRC_RSS_DISABLE);
1365
1366         memset(&tp, 0, sizeof(tp));
1367         tp.port = TRC_PORT_NONE;
1368         i = 0;  /* counts pattern nibbles */
1369
1370         while (p) {
1371                 while (isspace(*p))
1372                         p++;
1373                 word = strsep(&p, " ");
1374                 if (!*word)
1375                         break;
1376
1377                 if (!strncmp(word, "qid=", 4)) {
1378                         end = (char *)word + 4;
1379                         ret = kstrtouint(end, 10, &j);
1380                         if (ret)
1381                                 goto out;
1382                         if (!adap->trace_rss) {
1383                                 t4_write_reg(adap, MPS_T5_TRC_RSS_CONTROL_A, j);
1384                                 continue;
1385                         }
1386
1387                         switch (trcidx) {
1388                         case 0:
1389                                 t4_write_reg(adap, MPS_TRC_RSS_CONTROL_A, j);
1390                                 break;
1391                         case 1:
1392                                 t4_write_reg(adap,
1393                                              MPS_TRC_FILTER1_RSS_CONTROL_A, j);
1394                                 break;
1395                         case 2:
1396                                 t4_write_reg(adap,
1397                                              MPS_TRC_FILTER2_RSS_CONTROL_A, j);
1398                                 break;
1399                         case 3:
1400                                 t4_write_reg(adap,
1401                                              MPS_TRC_FILTER3_RSS_CONTROL_A, j);
1402                                 break;
1403                         }
1404                         continue;
1405                 }
1406                 if (!strncmp(word, "snaplen=", 8)) {
1407                         end = (char *)word + 8;
1408                         ret = kstrtouint(end, 10, &j);
1409                         if (ret || j > 9600) {
1410 inval:                          count = -EINVAL;
1411                                 goto out;
1412                         }
1413                         tp.snap_len = j;
1414                         continue;
1415                 }
1416                 if (!strncmp(word, "minlen=", 7)) {
1417                         end = (char *)word + 7;
1418                         ret = kstrtouint(end, 10, &j);
1419                         if (ret || j > TFMINPKTSIZE_M)
1420                                 goto inval;
1421                         tp.min_len = j;
1422                         continue;
1423                 }
1424                 if (!strcmp(word, "not")) {
1425                         tp.invert = !tp.invert;
1426                         continue;
1427                 }
1428                 if (!strncmp(word, "loopback", 8) && tp.port == TRC_PORT_NONE) {
1429                         if (word[8] < '0' || word[8] > '3' || word[9])
1430                                 goto inval;
1431                         tp.port = word[8] - '0' + 8;
1432                         continue;
1433                 }
1434                 if (!strncmp(word, "tx", 2) && tp.port == TRC_PORT_NONE) {
1435                         if (word[2] < '0' || word[2] > '3' || word[3])
1436                                 goto inval;
1437                         tp.port = word[2] - '0' + 4;
1438                         if (adap->chan_map[tp.port & 3] >= MAX_NPORTS)
1439                                 goto inval;
1440                         continue;
1441                 }
1442                 if (!strncmp(word, "rx", 2) && tp.port == TRC_PORT_NONE) {
1443                         if (word[2] < '0' || word[2] > '3' || word[3])
1444                                 goto inval;
1445                         tp.port = word[2] - '0';
1446                         if (adap->chan_map[tp.port] >= MAX_NPORTS)
1447                                 goto inval;
1448                         continue;
1449                 }
1450                 if (!isxdigit(*word))
1451                         goto inval;
1452
1453                 /* we have found a trace pattern */
1454                 if (i) {                            /* split pattern */
1455                         if (tp.skip_len)            /* too many splits */
1456                                 goto inval;
1457                         tp.skip_ofst = i / 16;
1458                 }
1459
1460                 data = &tp.data[i / 8];
1461                 mask = &tp.mask[i / 8];
1462                 j = i;
1463
1464                 while (isxdigit(*word)) {
1465                         if (i >= TRACE_LEN * 2) {
1466                                 count = -EFBIG;
1467                                 goto out;
1468                         }
1469                         *data = (*data << 4) + xdigit2int(*word++);
1470                         if (++i % 8 == 0)
1471                                 data++;
1472                 }
1473                 if (*word == '/') {
1474                         word++;
1475                         while (isxdigit(*word)) {
1476                                 if (j >= i)         /* mask longer than data */
1477                                         goto inval;
1478                                 *mask = (*mask << 4) + xdigit2int(*word++);
1479                                 if (++j % 8 == 0)
1480                                         mask++;
1481                         }
1482                         if (i != j)                 /* mask shorter than data */
1483                                 goto inval;
1484                 } else {                            /* no mask, use all 1s */
1485                         for ( ; i - j >= 8; j += 8)
1486                                 *mask++ = 0xffffffff;
1487                         if (i % 8)
1488                                 *mask = (1 << (i % 8) * 4) - 1;
1489                 }
1490                 if (*word == '@') {
1491                         end = (char *)word + 1;
1492                         ret = kstrtouint(end, 10, &j);
1493                         if (*end && *end != '\n')
1494                                 goto inval;
1495                         if (j & 7)          /* doesn't start at multiple of 8 */
1496                                 goto inval;
1497                         j /= 8;
1498                         if (j < tp.skip_ofst)     /* overlaps earlier pattern */
1499                                 goto inval;
1500                         if (j - tp.skip_ofst > 31)            /* skip too big */
1501                                 goto inval;
1502                         tp.skip_len = j - tp.skip_ofst;
1503                 }
1504                 if (i % 8) {
1505                         *data <<= (8 - i % 8) * 4;
1506                         *mask <<= (8 - i % 8) * 4;
1507                         i = (i + 15) & ~15;         /* 8-byte align */
1508                 }
1509         }
1510
1511         if (tp.port == TRC_PORT_NONE)
1512                 goto inval;
1513
1514 apply:
1515         i = t4_set_trace_filter(adap, &tp, trcidx, enable);
1516         if (i)
1517                 count = i;
1518 out:
1519         kfree(s);
1520         return count;
1521 }
1522
1523 static const struct file_operations mps_trc_debugfs_fops = {
1524         .owner   = THIS_MODULE,
1525         .open    = mps_trc_open,
1526         .read    = seq_read,
1527         .llseek  = seq_lseek,
1528         .release = single_release,
1529         .write   = mps_trc_write
1530 };
1531
1532 static ssize_t flash_read(struct file *file, char __user *buf, size_t count,
1533                           loff_t *ppos)
1534 {
1535         loff_t pos = *ppos;
1536         loff_t avail = file_inode(file)->i_size;
1537         struct adapter *adap = file->private_data;
1538
1539         if (pos < 0)
1540                 return -EINVAL;
1541         if (pos >= avail)
1542                 return 0;
1543         if (count > avail - pos)
1544                 count = avail - pos;
1545
1546         while (count) {
1547                 size_t len;
1548                 int ret, ofst;
1549                 u8 data[256];
1550
1551                 ofst = pos & 3;
1552                 len = min(count + ofst, sizeof(data));
1553                 ret = t4_read_flash(adap, pos - ofst, (len + 3) / 4,
1554                                     (u32 *)data, 1);
1555                 if (ret)
1556                         return ret;
1557
1558                 len -= ofst;
1559                 if (copy_to_user(buf, data + ofst, len))
1560                         return -EFAULT;
1561
1562                 buf += len;
1563                 pos += len;
1564                 count -= len;
1565         }
1566         count = pos - *ppos;
1567         *ppos = pos;
1568         return count;
1569 }
1570
1571 static const struct file_operations flash_debugfs_fops = {
1572         .owner   = THIS_MODULE,
1573         .open    = mem_open,
1574         .read    = flash_read,
1575 };
1576
1577 static inline void tcamxy2valmask(u64 x, u64 y, u8 *addr, u64 *mask)
1578 {
1579         *mask = x | y;
1580         y = (__force u64)cpu_to_be64(y);
1581         memcpy(addr, (char *)&y + 2, ETH_ALEN);
1582 }
1583
1584 static int mps_tcam_show(struct seq_file *seq, void *v)
1585 {
1586         struct adapter *adap = seq->private;
1587         unsigned int chip_ver = CHELSIO_CHIP_VERSION(adap->params.chip);
1588
1589         if (v == SEQ_START_TOKEN) {
1590                 if (adap->params.arch.mps_rplc_size > 128)
1591                         seq_puts(seq, "Idx  Ethernet address     Mask     "
1592                                  "Vld Ports PF  VF                           "
1593                                  "Replication                                "
1594                                  "    P0 P1 P2 P3  ML\n");
1595                 else
1596                         seq_puts(seq, "Idx  Ethernet address     Mask     "
1597                                  "Vld Ports PF  VF              Replication"
1598                                  "               P0 P1 P2 P3  ML\n");
1599         } else {
1600                 u64 mask;
1601                 u8 addr[ETH_ALEN];
1602                 bool replicate;
1603                 unsigned int idx = (uintptr_t)v - 2;
1604                 u64 tcamy, tcamx, val;
1605                 u32 cls_lo, cls_hi, ctl;
1606                 u32 rplc[8] = {0};
1607
1608                 if (chip_ver > CHELSIO_T5) {
1609                         /* CtlCmdType - 0: Read, 1: Write
1610                          * CtlTcamSel - 0: TCAM0, 1: TCAM1
1611                          * CtlXYBitSel- 0: Y bit, 1: X bit
1612                          */
1613
1614                         /* Read tcamy */
1615                         ctl = CTLCMDTYPE_V(0) | CTLXYBITSEL_V(0);
1616                         if (idx < 256)
1617                                 ctl |= CTLTCAMINDEX_V(idx) | CTLTCAMSEL_V(0);
1618                         else
1619                                 ctl |= CTLTCAMINDEX_V(idx - 256) |
1620                                        CTLTCAMSEL_V(1);
1621                         t4_write_reg(adap, MPS_CLS_TCAM_DATA2_CTL_A, ctl);
1622                         val = t4_read_reg(adap, MPS_CLS_TCAM_DATA1_A);
1623                         tcamy = DMACH_G(val) << 32;
1624                         tcamy |= t4_read_reg(adap, MPS_CLS_TCAM_DATA0_A);
1625
1626                         /* Read tcamx. Change the control param */
1627                         ctl |= CTLXYBITSEL_V(1);
1628                         t4_write_reg(adap, MPS_CLS_TCAM_DATA2_CTL_A, ctl);
1629                         val = t4_read_reg(adap, MPS_CLS_TCAM_DATA1_A);
1630                         tcamx = DMACH_G(val) << 32;
1631                         tcamx |= t4_read_reg(adap, MPS_CLS_TCAM_DATA0_A);
1632                 } else {
1633                         tcamy = t4_read_reg64(adap, MPS_CLS_TCAM_Y_L(idx));
1634                         tcamx = t4_read_reg64(adap, MPS_CLS_TCAM_X_L(idx));
1635                 }
1636
1637                 cls_lo = t4_read_reg(adap, MPS_CLS_SRAM_L(idx));
1638                 cls_hi = t4_read_reg(adap, MPS_CLS_SRAM_H(idx));
1639
1640                 if (tcamx & tcamy) {
1641                         seq_printf(seq, "%3u         -\n", idx);
1642                         goto out;
1643                 }
1644
1645                 rplc[0] = rplc[1] = rplc[2] = rplc[3] = 0;
1646                 if (chip_ver > CHELSIO_T5)
1647                         replicate = (cls_lo & T6_REPLICATE_F);
1648                 else
1649                         replicate = (cls_lo & REPLICATE_F);
1650
1651                 if (replicate) {
1652                         struct fw_ldst_cmd ldst_cmd;
1653                         int ret;
1654                         struct fw_ldst_mps_rplc mps_rplc;
1655                         u32 ldst_addrspc;
1656
1657                         memset(&ldst_cmd, 0, sizeof(ldst_cmd));
1658                         ldst_addrspc =
1659                                 FW_LDST_CMD_ADDRSPACE_V(FW_LDST_ADDRSPC_MPS);
1660                         ldst_cmd.op_to_addrspace =
1661                                 htonl(FW_CMD_OP_V(FW_LDST_CMD) |
1662                                       FW_CMD_REQUEST_F |
1663                                       FW_CMD_READ_F |
1664                                       ldst_addrspc);
1665                         ldst_cmd.cycles_to_len16 = htonl(FW_LEN16(ldst_cmd));
1666                         ldst_cmd.u.mps.rplc.fid_idx =
1667                                 htons(FW_LDST_CMD_FID_V(FW_LDST_MPS_RPLC) |
1668                                       FW_LDST_CMD_IDX_V(idx));
1669                         ret = t4_wr_mbox(adap, adap->mbox, &ldst_cmd,
1670                                          sizeof(ldst_cmd), &ldst_cmd);
1671                         if (ret)
1672                                 dev_warn(adap->pdev_dev, "Can't read MPS "
1673                                          "replication map for idx %d: %d\n",
1674                                          idx, -ret);
1675                         else {
1676                                 mps_rplc = ldst_cmd.u.mps.rplc;
1677                                 rplc[0] = ntohl(mps_rplc.rplc31_0);
1678                                 rplc[1] = ntohl(mps_rplc.rplc63_32);
1679                                 rplc[2] = ntohl(mps_rplc.rplc95_64);
1680                                 rplc[3] = ntohl(mps_rplc.rplc127_96);
1681                                 if (adap->params.arch.mps_rplc_size > 128) {
1682                                         rplc[4] = ntohl(mps_rplc.rplc159_128);
1683                                         rplc[5] = ntohl(mps_rplc.rplc191_160);
1684                                         rplc[6] = ntohl(mps_rplc.rplc223_192);
1685                                         rplc[7] = ntohl(mps_rplc.rplc255_224);
1686                                 }
1687                         }
1688                 }
1689
1690                 tcamxy2valmask(tcamx, tcamy, addr, &mask);
1691                 if (chip_ver > CHELSIO_T5)
1692                         seq_printf(seq, "%3u %02x:%02x:%02x:%02x:%02x:%02x "
1693                                    "%012llx%3c   %#x%4u%4d",
1694                                    idx, addr[0], addr[1], addr[2], addr[3],
1695                                    addr[4], addr[5], (unsigned long long)mask,
1696                                    (cls_lo & T6_SRAM_VLD_F) ? 'Y' : 'N',
1697                                    PORTMAP_G(cls_hi),
1698                                    T6_PF_G(cls_lo),
1699                                    (cls_lo & T6_VF_VALID_F) ?
1700                                    T6_VF_G(cls_lo) : -1);
1701                 else
1702                         seq_printf(seq, "%3u %02x:%02x:%02x:%02x:%02x:%02x "
1703                                    "%012llx%3c   %#x%4u%4d",
1704                                    idx, addr[0], addr[1], addr[2], addr[3],
1705                                    addr[4], addr[5], (unsigned long long)mask,
1706                                    (cls_lo & SRAM_VLD_F) ? 'Y' : 'N',
1707                                    PORTMAP_G(cls_hi),
1708                                    PF_G(cls_lo),
1709                                    (cls_lo & VF_VALID_F) ? VF_G(cls_lo) : -1);
1710
1711                 if (replicate) {
1712                         if (adap->params.arch.mps_rplc_size > 128)
1713                                 seq_printf(seq, " %08x %08x %08x %08x "
1714                                            "%08x %08x %08x %08x",
1715                                            rplc[7], rplc[6], rplc[5], rplc[4],
1716                                            rplc[3], rplc[2], rplc[1], rplc[0]);
1717                         else
1718                                 seq_printf(seq, " %08x %08x %08x %08x",
1719                                            rplc[3], rplc[2], rplc[1], rplc[0]);
1720                 } else {
1721                         if (adap->params.arch.mps_rplc_size > 128)
1722                                 seq_printf(seq, "%72c", ' ');
1723                         else
1724                                 seq_printf(seq, "%36c", ' ');
1725                 }
1726
1727                 if (chip_ver > CHELSIO_T5)
1728                         seq_printf(seq, "%4u%3u%3u%3u %#x\n",
1729                                    T6_SRAM_PRIO0_G(cls_lo),
1730                                    T6_SRAM_PRIO1_G(cls_lo),
1731                                    T6_SRAM_PRIO2_G(cls_lo),
1732                                    T6_SRAM_PRIO3_G(cls_lo),
1733                                    (cls_lo >> T6_MULTILISTEN0_S) & 0xf);
1734                 else
1735                         seq_printf(seq, "%4u%3u%3u%3u %#x\n",
1736                                    SRAM_PRIO0_G(cls_lo), SRAM_PRIO1_G(cls_lo),
1737                                    SRAM_PRIO2_G(cls_lo), SRAM_PRIO3_G(cls_lo),
1738                                    (cls_lo >> MULTILISTEN0_S) & 0xf);
1739         }
1740 out:    return 0;
1741 }
1742
1743 static inline void *mps_tcam_get_idx(struct seq_file *seq, loff_t pos)
1744 {
1745         struct adapter *adap = seq->private;
1746         int max_mac_addr = is_t4(adap->params.chip) ?
1747                                 NUM_MPS_CLS_SRAM_L_INSTANCES :
1748                                 NUM_MPS_T5_CLS_SRAM_L_INSTANCES;
1749         return ((pos <= max_mac_addr) ? (void *)(uintptr_t)(pos + 1) : NULL);
1750 }
1751
1752 static void *mps_tcam_start(struct seq_file *seq, loff_t *pos)
1753 {
1754         return *pos ? mps_tcam_get_idx(seq, *pos) : SEQ_START_TOKEN;
1755 }
1756
1757 static void *mps_tcam_next(struct seq_file *seq, void *v, loff_t *pos)
1758 {
1759         ++*pos;
1760         return mps_tcam_get_idx(seq, *pos);
1761 }
1762
1763 static void mps_tcam_stop(struct seq_file *seq, void *v)
1764 {
1765 }
1766
1767 static const struct seq_operations mps_tcam_seq_ops = {
1768         .start = mps_tcam_start,
1769         .next  = mps_tcam_next,
1770         .stop  = mps_tcam_stop,
1771         .show  = mps_tcam_show
1772 };
1773
1774 static int mps_tcam_open(struct inode *inode, struct file *file)
1775 {
1776         int res = seq_open(file, &mps_tcam_seq_ops);
1777
1778         if (!res) {
1779                 struct seq_file *seq = file->private_data;
1780
1781                 seq->private = inode->i_private;
1782         }
1783         return res;
1784 }
1785
1786 static const struct file_operations mps_tcam_debugfs_fops = {
1787         .owner   = THIS_MODULE,
1788         .open    = mps_tcam_open,
1789         .read    = seq_read,
1790         .llseek  = seq_lseek,
1791         .release = seq_release,
1792 };
1793
1794 /* Display various sensor information.
1795  */
1796 static int sensors_show(struct seq_file *seq, void *v)
1797 {
1798         struct adapter *adap = seq->private;
1799         u32 param[7], val[7];
1800         int ret;
1801
1802         /* Note that if the sensors haven't been initialized and turned on
1803          * we'll get values of 0, so treat those as "<unknown>" ...
1804          */
1805         param[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
1806                     FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_DIAG) |
1807                     FW_PARAMS_PARAM_Y_V(FW_PARAM_DEV_DIAG_TMP));
1808         param[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
1809                     FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_DIAG) |
1810                     FW_PARAMS_PARAM_Y_V(FW_PARAM_DEV_DIAG_VDD));
1811         ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 2,
1812                               param, val);
1813
1814         if (ret < 0 || val[0] == 0)
1815                 seq_puts(seq, "Temperature: <unknown>\n");
1816         else
1817                 seq_printf(seq, "Temperature: %dC\n", val[0]);
1818
1819         if (ret < 0 || val[1] == 0)
1820                 seq_puts(seq, "Core VDD:    <unknown>\n");
1821         else
1822                 seq_printf(seq, "Core VDD:    %dmV\n", val[1]);
1823
1824         return 0;
1825 }
1826
1827 DEFINE_SIMPLE_DEBUGFS_FILE(sensors);
1828
1829 #if IS_ENABLED(CONFIG_IPV6)
1830 static int clip_tbl_open(struct inode *inode, struct file *file)
1831 {
1832         return single_open(file, clip_tbl_show, inode->i_private);
1833 }
1834
1835 static const struct file_operations clip_tbl_debugfs_fops = {
1836         .owner   = THIS_MODULE,
1837         .open    = clip_tbl_open,
1838         .read    = seq_read,
1839         .llseek  = seq_lseek,
1840         .release = single_release
1841 };
1842 #endif
1843
1844 /*RSS Table.
1845  */
1846
1847 static int rss_show(struct seq_file *seq, void *v, int idx)
1848 {
1849         u16 *entry = v;
1850
1851         seq_printf(seq, "%4d:  %4u  %4u  %4u  %4u  %4u  %4u  %4u  %4u\n",
1852                    idx * 8, entry[0], entry[1], entry[2], entry[3], entry[4],
1853                    entry[5], entry[6], entry[7]);
1854         return 0;
1855 }
1856
1857 static int rss_open(struct inode *inode, struct file *file)
1858 {
1859         int ret;
1860         struct seq_tab *p;
1861         struct adapter *adap = inode->i_private;
1862
1863         p = seq_open_tab(file, RSS_NENTRIES / 8, 8 * sizeof(u16), 0, rss_show);
1864         if (!p)
1865                 return -ENOMEM;
1866
1867         ret = t4_read_rss(adap, (u16 *)p->data);
1868         if (ret)
1869                 seq_release_private(inode, file);
1870
1871         return ret;
1872 }
1873
1874 static const struct file_operations rss_debugfs_fops = {
1875         .owner   = THIS_MODULE,
1876         .open    = rss_open,
1877         .read    = seq_read,
1878         .llseek  = seq_lseek,
1879         .release = seq_release_private
1880 };
1881
1882 /* RSS Configuration.
1883  */
1884
1885 /* Small utility function to return the strings "yes" or "no" if the supplied
1886  * argument is non-zero.
1887  */
1888 static const char *yesno(int x)
1889 {
1890         static const char *yes = "yes";
1891         static const char *no = "no";
1892
1893         return x ? yes : no;
1894 }
1895
1896 static int rss_config_show(struct seq_file *seq, void *v)
1897 {
1898         struct adapter *adapter = seq->private;
1899         static const char * const keymode[] = {
1900                 "global",
1901                 "global and per-VF scramble",
1902                 "per-PF and per-VF scramble",
1903                 "per-VF and per-VF scramble",
1904         };
1905         u32 rssconf;
1906
1907         rssconf = t4_read_reg(adapter, TP_RSS_CONFIG_A);
1908         seq_printf(seq, "TP_RSS_CONFIG: %#x\n", rssconf);
1909         seq_printf(seq, "  Tnl4TupEnIpv6: %3s\n", yesno(rssconf &
1910                                                         TNL4TUPENIPV6_F));
1911         seq_printf(seq, "  Tnl2TupEnIpv6: %3s\n", yesno(rssconf &
1912                                                         TNL2TUPENIPV6_F));
1913         seq_printf(seq, "  Tnl4TupEnIpv4: %3s\n", yesno(rssconf &
1914                                                         TNL4TUPENIPV4_F));
1915         seq_printf(seq, "  Tnl2TupEnIpv4: %3s\n", yesno(rssconf &
1916                                                         TNL2TUPENIPV4_F));
1917         seq_printf(seq, "  TnlTcpSel:     %3s\n", yesno(rssconf & TNLTCPSEL_F));
1918         seq_printf(seq, "  TnlIp6Sel:     %3s\n", yesno(rssconf & TNLIP6SEL_F));
1919         seq_printf(seq, "  TnlVrtSel:     %3s\n", yesno(rssconf & TNLVRTSEL_F));
1920         seq_printf(seq, "  TnlMapEn:      %3s\n", yesno(rssconf & TNLMAPEN_F));
1921         seq_printf(seq, "  OfdHashSave:   %3s\n", yesno(rssconf &
1922                                                         OFDHASHSAVE_F));
1923         seq_printf(seq, "  OfdVrtSel:     %3s\n", yesno(rssconf & OFDVRTSEL_F));
1924         seq_printf(seq, "  OfdMapEn:      %3s\n", yesno(rssconf & OFDMAPEN_F));
1925         seq_printf(seq, "  OfdLkpEn:      %3s\n", yesno(rssconf & OFDLKPEN_F));
1926         seq_printf(seq, "  Syn4TupEnIpv6: %3s\n", yesno(rssconf &
1927                                                         SYN4TUPENIPV6_F));
1928         seq_printf(seq, "  Syn2TupEnIpv6: %3s\n", yesno(rssconf &
1929                                                         SYN2TUPENIPV6_F));
1930         seq_printf(seq, "  Syn4TupEnIpv4: %3s\n", yesno(rssconf &
1931                                                         SYN4TUPENIPV4_F));
1932         seq_printf(seq, "  Syn2TupEnIpv4: %3s\n", yesno(rssconf &
1933                                                         SYN2TUPENIPV4_F));
1934         seq_printf(seq, "  Syn4TupEnIpv6: %3s\n", yesno(rssconf &
1935                                                         SYN4TUPENIPV6_F));
1936         seq_printf(seq, "  SynIp6Sel:     %3s\n", yesno(rssconf & SYNIP6SEL_F));
1937         seq_printf(seq, "  SynVrt6Sel:    %3s\n", yesno(rssconf & SYNVRTSEL_F));
1938         seq_printf(seq, "  SynMapEn:      %3s\n", yesno(rssconf & SYNMAPEN_F));
1939         seq_printf(seq, "  SynLkpEn:      %3s\n", yesno(rssconf & SYNLKPEN_F));
1940         seq_printf(seq, "  ChnEn:         %3s\n", yesno(rssconf &
1941                                                         CHANNELENABLE_F));
1942         seq_printf(seq, "  PrtEn:         %3s\n", yesno(rssconf &
1943                                                         PORTENABLE_F));
1944         seq_printf(seq, "  TnlAllLkp:     %3s\n", yesno(rssconf &
1945                                                         TNLALLLOOKUP_F));
1946         seq_printf(seq, "  VrtEn:         %3s\n", yesno(rssconf &
1947                                                         VIRTENABLE_F));
1948         seq_printf(seq, "  CngEn:         %3s\n", yesno(rssconf &
1949                                                         CONGESTIONENABLE_F));
1950         seq_printf(seq, "  HashToeplitz:  %3s\n", yesno(rssconf &
1951                                                         HASHTOEPLITZ_F));
1952         seq_printf(seq, "  Udp4En:        %3s\n", yesno(rssconf & UDPENABLE_F));
1953         seq_printf(seq, "  Disable:       %3s\n", yesno(rssconf & DISABLE_F));
1954
1955         seq_puts(seq, "\n");
1956
1957         rssconf = t4_read_reg(adapter, TP_RSS_CONFIG_TNL_A);
1958         seq_printf(seq, "TP_RSS_CONFIG_TNL: %#x\n", rssconf);
1959         seq_printf(seq, "  MaskSize:      %3d\n", MASKSIZE_G(rssconf));
1960         seq_printf(seq, "  MaskFilter:    %3d\n", MASKFILTER_G(rssconf));
1961         if (CHELSIO_CHIP_VERSION(adapter->params.chip) > CHELSIO_T5) {
1962                 seq_printf(seq, "  HashAll:     %3s\n",
1963                            yesno(rssconf & HASHALL_F));
1964                 seq_printf(seq, "  HashEth:     %3s\n",
1965                            yesno(rssconf & HASHETH_F));
1966         }
1967         seq_printf(seq, "  UseWireCh:     %3s\n", yesno(rssconf & USEWIRECH_F));
1968
1969         seq_puts(seq, "\n");
1970
1971         rssconf = t4_read_reg(adapter, TP_RSS_CONFIG_OFD_A);
1972         seq_printf(seq, "TP_RSS_CONFIG_OFD: %#x\n", rssconf);
1973         seq_printf(seq, "  MaskSize:      %3d\n", MASKSIZE_G(rssconf));
1974         seq_printf(seq, "  RRCplMapEn:    %3s\n", yesno(rssconf &
1975                                                         RRCPLMAPEN_F));
1976         seq_printf(seq, "  RRCplQueWidth: %3d\n", RRCPLQUEWIDTH_G(rssconf));
1977
1978         seq_puts(seq, "\n");
1979
1980         rssconf = t4_read_reg(adapter, TP_RSS_CONFIG_SYN_A);
1981         seq_printf(seq, "TP_RSS_CONFIG_SYN: %#x\n", rssconf);
1982         seq_printf(seq, "  MaskSize:      %3d\n", MASKSIZE_G(rssconf));
1983         seq_printf(seq, "  UseWireCh:     %3s\n", yesno(rssconf & USEWIRECH_F));
1984
1985         seq_puts(seq, "\n");
1986
1987         rssconf = t4_read_reg(adapter, TP_RSS_CONFIG_VRT_A);
1988         seq_printf(seq, "TP_RSS_CONFIG_VRT: %#x\n", rssconf);
1989         if (CHELSIO_CHIP_VERSION(adapter->params.chip) > CHELSIO_T5) {
1990                 seq_printf(seq, "  KeyWrAddrX:     %3d\n",
1991                            KEYWRADDRX_G(rssconf));
1992                 seq_printf(seq, "  KeyExtend:      %3s\n",
1993                            yesno(rssconf & KEYEXTEND_F));
1994         }
1995         seq_printf(seq, "  VfRdRg:        %3s\n", yesno(rssconf & VFRDRG_F));
1996         seq_printf(seq, "  VfRdEn:        %3s\n", yesno(rssconf & VFRDEN_F));
1997         seq_printf(seq, "  VfPerrEn:      %3s\n", yesno(rssconf & VFPERREN_F));
1998         seq_printf(seq, "  KeyPerrEn:     %3s\n", yesno(rssconf & KEYPERREN_F));
1999         seq_printf(seq, "  DisVfVlan:     %3s\n", yesno(rssconf &
2000                                                         DISABLEVLAN_F));
2001         seq_printf(seq, "  EnUpSwt:       %3s\n", yesno(rssconf & ENABLEUP0_F));
2002         seq_printf(seq, "  HashDelay:     %3d\n", HASHDELAY_G(rssconf));
2003         if (CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5)
2004                 seq_printf(seq, "  VfWrAddr:      %3d\n", VFWRADDR_G(rssconf));
2005         else
2006                 seq_printf(seq, "  VfWrAddr:      %3d\n",
2007                            T6_VFWRADDR_G(rssconf));
2008         seq_printf(seq, "  KeyMode:       %s\n", keymode[KEYMODE_G(rssconf)]);
2009         seq_printf(seq, "  VfWrEn:        %3s\n", yesno(rssconf & VFWREN_F));
2010         seq_printf(seq, "  KeyWrEn:       %3s\n", yesno(rssconf & KEYWREN_F));
2011         seq_printf(seq, "  KeyWrAddr:     %3d\n", KEYWRADDR_G(rssconf));
2012
2013         seq_puts(seq, "\n");
2014
2015         rssconf = t4_read_reg(adapter, TP_RSS_CONFIG_CNG_A);
2016         seq_printf(seq, "TP_RSS_CONFIG_CNG: %#x\n", rssconf);
2017         seq_printf(seq, "  ChnCount3:     %3s\n", yesno(rssconf & CHNCOUNT3_F));
2018         seq_printf(seq, "  ChnCount2:     %3s\n", yesno(rssconf & CHNCOUNT2_F));
2019         seq_printf(seq, "  ChnCount1:     %3s\n", yesno(rssconf & CHNCOUNT1_F));
2020         seq_printf(seq, "  ChnCount0:     %3s\n", yesno(rssconf & CHNCOUNT0_F));
2021         seq_printf(seq, "  ChnUndFlow3:   %3s\n", yesno(rssconf &
2022                                                         CHNUNDFLOW3_F));
2023         seq_printf(seq, "  ChnUndFlow2:   %3s\n", yesno(rssconf &
2024                                                         CHNUNDFLOW2_F));
2025         seq_printf(seq, "  ChnUndFlow1:   %3s\n", yesno(rssconf &
2026                                                         CHNUNDFLOW1_F));
2027         seq_printf(seq, "  ChnUndFlow0:   %3s\n", yesno(rssconf &
2028                                                         CHNUNDFLOW0_F));
2029         seq_printf(seq, "  RstChn3:       %3s\n", yesno(rssconf & RSTCHN3_F));
2030         seq_printf(seq, "  RstChn2:       %3s\n", yesno(rssconf & RSTCHN2_F));
2031         seq_printf(seq, "  RstChn1:       %3s\n", yesno(rssconf & RSTCHN1_F));
2032         seq_printf(seq, "  RstChn0:       %3s\n", yesno(rssconf & RSTCHN0_F));
2033         seq_printf(seq, "  UpdVld:        %3s\n", yesno(rssconf & UPDVLD_F));
2034         seq_printf(seq, "  Xoff:          %3s\n", yesno(rssconf & XOFF_F));
2035         seq_printf(seq, "  UpdChn3:       %3s\n", yesno(rssconf & UPDCHN3_F));
2036         seq_printf(seq, "  UpdChn2:       %3s\n", yesno(rssconf & UPDCHN2_F));
2037         seq_printf(seq, "  UpdChn1:       %3s\n", yesno(rssconf & UPDCHN1_F));
2038         seq_printf(seq, "  UpdChn0:       %3s\n", yesno(rssconf & UPDCHN0_F));
2039         seq_printf(seq, "  Queue:         %3d\n", QUEUE_G(rssconf));
2040
2041         return 0;
2042 }
2043
2044 DEFINE_SIMPLE_DEBUGFS_FILE(rss_config);
2045
2046 /* RSS Secret Key.
2047  */
2048
2049 static int rss_key_show(struct seq_file *seq, void *v)
2050 {
2051         u32 key[10];
2052
2053         t4_read_rss_key(seq->private, key);
2054         seq_printf(seq, "%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x\n",
2055                    key[9], key[8], key[7], key[6], key[5], key[4], key[3],
2056                    key[2], key[1], key[0]);
2057         return 0;
2058 }
2059
2060 static int rss_key_open(struct inode *inode, struct file *file)
2061 {
2062         return single_open(file, rss_key_show, inode->i_private);
2063 }
2064
2065 static ssize_t rss_key_write(struct file *file, const char __user *buf,
2066                              size_t count, loff_t *pos)
2067 {
2068         int i, j;
2069         u32 key[10];
2070         char s[100], *p;
2071         struct adapter *adap = file_inode(file)->i_private;
2072
2073         if (count > sizeof(s) - 1)
2074                 return -EINVAL;
2075         if (copy_from_user(s, buf, count))
2076                 return -EFAULT;
2077         for (i = count; i > 0 && isspace(s[i - 1]); i--)
2078                 ;
2079         s[i] = '\0';
2080
2081         for (p = s, i = 9; i >= 0; i--) {
2082                 key[i] = 0;
2083                 for (j = 0; j < 8; j++, p++) {
2084                         if (!isxdigit(*p))
2085                                 return -EINVAL;
2086                         key[i] = (key[i] << 4) | hex2val(*p);
2087                 }
2088         }
2089
2090         t4_write_rss_key(adap, key, -1);
2091         return count;
2092 }
2093
2094 static const struct file_operations rss_key_debugfs_fops = {
2095         .owner   = THIS_MODULE,
2096         .open    = rss_key_open,
2097         .read    = seq_read,
2098         .llseek  = seq_lseek,
2099         .release = single_release,
2100         .write   = rss_key_write
2101 };
2102
2103 /* PF RSS Configuration.
2104  */
2105
2106 struct rss_pf_conf {
2107         u32 rss_pf_map;
2108         u32 rss_pf_mask;
2109         u32 rss_pf_config;
2110 };
2111
2112 static int rss_pf_config_show(struct seq_file *seq, void *v, int idx)
2113 {
2114         struct rss_pf_conf *pfconf;
2115
2116         if (v == SEQ_START_TOKEN) {
2117                 /* use the 0th entry to dump the PF Map Index Size */
2118                 pfconf = seq->private + offsetof(struct seq_tab, data);
2119                 seq_printf(seq, "PF Map Index Size = %d\n\n",
2120                            LKPIDXSIZE_G(pfconf->rss_pf_map));
2121
2122                 seq_puts(seq, "     RSS              PF   VF    Hash Tuple Enable         Default\n");
2123                 seq_puts(seq, "     Enable       IPF Mask Mask  IPv6      IPv4      UDP   Queue\n");
2124                 seq_puts(seq, " PF  Map Chn Prt  Map Size Size  Four Two  Four Two  Four  Ch1  Ch0\n");
2125         } else {
2126                 #define G_PFnLKPIDX(map, n) \
2127                         (((map) >> PF1LKPIDX_S*(n)) & PF0LKPIDX_M)
2128                 #define G_PFnMSKSIZE(mask, n) \
2129                         (((mask) >> PF1MSKSIZE_S*(n)) & PF1MSKSIZE_M)
2130
2131                 pfconf = v;
2132                 seq_printf(seq, "%3d  %3s %3s %3s  %3d  %3d  %3d   %3s %3s   %3s %3s   %3s  %3d  %3d\n",
2133                            idx,
2134                            yesno(pfconf->rss_pf_config & MAPENABLE_F),
2135                            yesno(pfconf->rss_pf_config & CHNENABLE_F),
2136                            yesno(pfconf->rss_pf_config & PRTENABLE_F),
2137                            G_PFnLKPIDX(pfconf->rss_pf_map, idx),
2138                            G_PFnMSKSIZE(pfconf->rss_pf_mask, idx),
2139                            IVFWIDTH_G(pfconf->rss_pf_config),
2140                            yesno(pfconf->rss_pf_config & IP6FOURTUPEN_F),
2141                            yesno(pfconf->rss_pf_config & IP6TWOTUPEN_F),
2142                            yesno(pfconf->rss_pf_config & IP4FOURTUPEN_F),
2143                            yesno(pfconf->rss_pf_config & IP4TWOTUPEN_F),
2144                            yesno(pfconf->rss_pf_config & UDPFOURTUPEN_F),
2145                            CH1DEFAULTQUEUE_G(pfconf->rss_pf_config),
2146                            CH0DEFAULTQUEUE_G(pfconf->rss_pf_config));
2147
2148                 #undef G_PFnLKPIDX
2149                 #undef G_PFnMSKSIZE
2150         }
2151         return 0;
2152 }
2153
2154 static int rss_pf_config_open(struct inode *inode, struct file *file)
2155 {
2156         struct adapter *adapter = inode->i_private;
2157         struct seq_tab *p;
2158         u32 rss_pf_map, rss_pf_mask;
2159         struct rss_pf_conf *pfconf;
2160         int pf;
2161
2162         p = seq_open_tab(file, 8, sizeof(*pfconf), 1, rss_pf_config_show);
2163         if (!p)
2164                 return -ENOMEM;
2165
2166         pfconf = (struct rss_pf_conf *)p->data;
2167         rss_pf_map = t4_read_rss_pf_map(adapter);
2168         rss_pf_mask = t4_read_rss_pf_mask(adapter);
2169         for (pf = 0; pf < 8; pf++) {
2170                 pfconf[pf].rss_pf_map = rss_pf_map;
2171                 pfconf[pf].rss_pf_mask = rss_pf_mask;
2172                 t4_read_rss_pf_config(adapter, pf, &pfconf[pf].rss_pf_config);
2173         }
2174         return 0;
2175 }
2176
2177 static const struct file_operations rss_pf_config_debugfs_fops = {
2178         .owner   = THIS_MODULE,
2179         .open    = rss_pf_config_open,
2180         .read    = seq_read,
2181         .llseek  = seq_lseek,
2182         .release = seq_release_private
2183 };
2184
2185 /* VF RSS Configuration.
2186  */
2187
2188 struct rss_vf_conf {
2189         u32 rss_vf_vfl;
2190         u32 rss_vf_vfh;
2191 };
2192
2193 static int rss_vf_config_show(struct seq_file *seq, void *v, int idx)
2194 {
2195         if (v == SEQ_START_TOKEN) {
2196                 seq_puts(seq, "     RSS                     Hash Tuple Enable\n");
2197                 seq_puts(seq, "     Enable   IVF  Dis  Enb  IPv6      IPv4      UDP    Def  Secret Key\n");
2198                 seq_puts(seq, " VF  Chn Prt  Map  VLAN  uP  Four Two  Four Two  Four   Que  Idx       Hash\n");
2199         } else {
2200                 struct rss_vf_conf *vfconf = v;
2201
2202                 seq_printf(seq, "%3d  %3s %3s  %3d   %3s %3s   %3s %3s   %3s  %3s   %3s  %4d  %3d %#10x\n",
2203                            idx,
2204                            yesno(vfconf->rss_vf_vfh & VFCHNEN_F),
2205                            yesno(vfconf->rss_vf_vfh & VFPRTEN_F),
2206                            VFLKPIDX_G(vfconf->rss_vf_vfh),
2207                            yesno(vfconf->rss_vf_vfh & VFVLNEX_F),
2208                            yesno(vfconf->rss_vf_vfh & VFUPEN_F),
2209                            yesno(vfconf->rss_vf_vfh & VFIP4FOURTUPEN_F),
2210                            yesno(vfconf->rss_vf_vfh & VFIP6TWOTUPEN_F),
2211                            yesno(vfconf->rss_vf_vfh & VFIP4FOURTUPEN_F),
2212                            yesno(vfconf->rss_vf_vfh & VFIP4TWOTUPEN_F),
2213                            yesno(vfconf->rss_vf_vfh & ENABLEUDPHASH_F),
2214                            DEFAULTQUEUE_G(vfconf->rss_vf_vfh),
2215                            KEYINDEX_G(vfconf->rss_vf_vfh),
2216                            vfconf->rss_vf_vfl);
2217         }
2218         return 0;
2219 }
2220
2221 static int rss_vf_config_open(struct inode *inode, struct file *file)
2222 {
2223         struct adapter *adapter = inode->i_private;
2224         struct seq_tab *p;
2225         struct rss_vf_conf *vfconf;
2226         int vf, vfcount = adapter->params.arch.vfcount;
2227
2228         p = seq_open_tab(file, vfcount, sizeof(*vfconf), 1, rss_vf_config_show);
2229         if (!p)
2230                 return -ENOMEM;
2231
2232         vfconf = (struct rss_vf_conf *)p->data;
2233         for (vf = 0; vf < vfcount; vf++) {
2234                 t4_read_rss_vf_config(adapter, vf, &vfconf[vf].rss_vf_vfl,
2235                                       &vfconf[vf].rss_vf_vfh);
2236         }
2237         return 0;
2238 }
2239
2240 static const struct file_operations rss_vf_config_debugfs_fops = {
2241         .owner   = THIS_MODULE,
2242         .open    = rss_vf_config_open,
2243         .read    = seq_read,
2244         .llseek  = seq_lseek,
2245         .release = seq_release_private
2246 };
2247
2248 /**
2249  * ethqset2pinfo - return port_info of an Ethernet Queue Set
2250  * @adap: the adapter
2251  * @qset: Ethernet Queue Set
2252  */
2253 static inline struct port_info *ethqset2pinfo(struct adapter *adap, int qset)
2254 {
2255         int pidx;
2256
2257         for_each_port(adap, pidx) {
2258                 struct port_info *pi = adap2pinfo(adap, pidx);
2259
2260                 if (qset >= pi->first_qset &&
2261                     qset < pi->first_qset + pi->nqsets)
2262                         return pi;
2263         }
2264
2265         /* should never happen! */
2266         BUG_ON(1);
2267         return NULL;
2268 }
2269
2270 static int sge_qinfo_show(struct seq_file *seq, void *v)
2271 {
2272         struct adapter *adap = seq->private;
2273         int eth_entries = DIV_ROUND_UP(adap->sge.ethqsets, 4);
2274         int iscsi_entries = DIV_ROUND_UP(adap->sge.iscsiqsets, 4);
2275         int rdma_entries = DIV_ROUND_UP(adap->sge.rdmaqs, 4);
2276         int ciq_entries = DIV_ROUND_UP(adap->sge.rdmaciqs, 4);
2277         int ctrl_entries = DIV_ROUND_UP(MAX_CTRL_QUEUES, 4);
2278         int i, r = (uintptr_t)v - 1;
2279         int iscsi_idx = r - eth_entries;
2280         int rdma_idx = iscsi_idx - iscsi_entries;
2281         int ciq_idx = rdma_idx - rdma_entries;
2282         int ctrl_idx =  ciq_idx - ciq_entries;
2283         int fq_idx =  ctrl_idx - ctrl_entries;
2284
2285         if (r)
2286                 seq_putc(seq, '\n');
2287
2288 #define S3(fmt_spec, s, v) \
2289 do { \
2290         seq_printf(seq, "%-12s", s); \
2291         for (i = 0; i < n; ++i) \
2292                 seq_printf(seq, " %16" fmt_spec, v); \
2293                 seq_putc(seq, '\n'); \
2294 } while (0)
2295 #define S(s, v) S3("s", s, v)
2296 #define T3(fmt_spec, s, v) S3(fmt_spec, s, tx[i].v)
2297 #define T(s, v) S3("u", s, tx[i].v)
2298 #define TL(s, v) T3("lu", s, v)
2299 #define R3(fmt_spec, s, v) S3(fmt_spec, s, rx[i].v)
2300 #define R(s, v) S3("u", s, rx[i].v)
2301 #define RL(s, v) R3("lu", s, v)
2302
2303         if (r < eth_entries) {
2304                 int base_qset = r * 4;
2305                 const struct sge_eth_rxq *rx = &adap->sge.ethrxq[base_qset];
2306                 const struct sge_eth_txq *tx = &adap->sge.ethtxq[base_qset];
2307                 int n = min(4, adap->sge.ethqsets - 4 * r);
2308
2309                 S("QType:", "Ethernet");
2310                 S("Interface:",
2311                   rx[i].rspq.netdev ? rx[i].rspq.netdev->name : "N/A");
2312                 T("TxQ ID:", q.cntxt_id);
2313                 T("TxQ size:", q.size);
2314                 T("TxQ inuse:", q.in_use);
2315                 T("TxQ CIDX:", q.cidx);
2316                 T("TxQ PIDX:", q.pidx);
2317 #ifdef CONFIG_CHELSIO_T4_DCB
2318                 T("DCB Prio:", dcb_prio);
2319                 S3("u", "DCB PGID:",
2320                    (ethqset2pinfo(adap, base_qset + i)->dcb.pgid >>
2321                     4*(7-tx[i].dcb_prio)) & 0xf);
2322                 S3("u", "DCB PFC:",
2323                    (ethqset2pinfo(adap, base_qset + i)->dcb.pfcen >>
2324                     1*(7-tx[i].dcb_prio)) & 0x1);
2325 #endif
2326                 R("RspQ ID:", rspq.abs_id);
2327                 R("RspQ size:", rspq.size);
2328                 R("RspQE size:", rspq.iqe_len);
2329                 R("RspQ CIDX:", rspq.cidx);
2330                 R("RspQ Gen:", rspq.gen);
2331                 S3("u", "Intr delay:", qtimer_val(adap, &rx[i].rspq));
2332                 S3("u", "Intr pktcnt:",
2333                    adap->sge.counter_val[rx[i].rspq.pktcnt_idx]);
2334                 R("FL ID:", fl.cntxt_id);
2335                 R("FL size:", fl.size - 8);
2336                 R("FL pend:", fl.pend_cred);
2337                 R("FL avail:", fl.avail);
2338                 R("FL PIDX:", fl.pidx);
2339                 R("FL CIDX:", fl.cidx);
2340                 RL("RxPackets:", stats.pkts);
2341                 RL("RxCSO:", stats.rx_cso);
2342                 RL("VLANxtract:", stats.vlan_ex);
2343                 RL("LROmerged:", stats.lro_merged);
2344                 RL("LROpackets:", stats.lro_pkts);
2345                 RL("RxDrops:", stats.rx_drops);
2346                 TL("TSO:", tso);
2347                 TL("TxCSO:", tx_cso);
2348                 TL("VLANins:", vlan_ins);
2349                 TL("TxQFull:", q.stops);
2350                 TL("TxQRestarts:", q.restarts);
2351                 TL("TxMapErr:", mapping_err);
2352                 RL("FLAllocErr:", fl.alloc_failed);
2353                 RL("FLLrgAlcErr:", fl.large_alloc_failed);
2354                 RL("FLMapErr:", fl.mapping_err);
2355                 RL("FLLow:", fl.low);
2356                 RL("FLStarving:", fl.starving);
2357
2358         } else if (iscsi_idx < iscsi_entries) {
2359                 const struct sge_ofld_rxq *rx =
2360                         &adap->sge.iscsirxq[iscsi_idx * 4];
2361                 const struct sge_ofld_txq *tx =
2362                         &adap->sge.ofldtxq[iscsi_idx * 4];
2363                 int n = min(4, adap->sge.iscsiqsets - 4 * iscsi_idx);
2364
2365                 S("QType:", "iSCSI");
2366                 T("TxQ ID:", q.cntxt_id);
2367                 T("TxQ size:", q.size);
2368                 T("TxQ inuse:", q.in_use);
2369                 T("TxQ CIDX:", q.cidx);
2370                 T("TxQ PIDX:", q.pidx);
2371                 R("RspQ ID:", rspq.abs_id);
2372                 R("RspQ size:", rspq.size);
2373                 R("RspQE size:", rspq.iqe_len);
2374                 R("RspQ CIDX:", rspq.cidx);
2375                 R("RspQ Gen:", rspq.gen);
2376                 S3("u", "Intr delay:", qtimer_val(adap, &rx[i].rspq));
2377                 S3("u", "Intr pktcnt:",
2378                    adap->sge.counter_val[rx[i].rspq.pktcnt_idx]);
2379                 R("FL ID:", fl.cntxt_id);
2380                 R("FL size:", fl.size - 8);
2381                 R("FL pend:", fl.pend_cred);
2382                 R("FL avail:", fl.avail);
2383                 R("FL PIDX:", fl.pidx);
2384                 R("FL CIDX:", fl.cidx);
2385                 RL("RxPackets:", stats.pkts);
2386                 RL("RxImmPkts:", stats.imm);
2387                 RL("RxNoMem:", stats.nomem);
2388                 RL("FLAllocErr:", fl.alloc_failed);
2389                 RL("FLLrgAlcErr:", fl.large_alloc_failed);
2390                 RL("FLMapErr:", fl.mapping_err);
2391                 RL("FLLow:", fl.low);
2392                 RL("FLStarving:", fl.starving);
2393
2394         } else if (rdma_idx < rdma_entries) {
2395                 const struct sge_ofld_rxq *rx =
2396                                 &adap->sge.rdmarxq[rdma_idx * 4];
2397                 int n = min(4, adap->sge.rdmaqs - 4 * rdma_idx);
2398
2399                 S("QType:", "RDMA-CPL");
2400                 S("Interface:",
2401                   rx[i].rspq.netdev ? rx[i].rspq.netdev->name : "N/A");
2402                 R("RspQ ID:", rspq.abs_id);
2403                 R("RspQ size:", rspq.size);
2404                 R("RspQE size:", rspq.iqe_len);
2405                 R("RspQ CIDX:", rspq.cidx);
2406                 R("RspQ Gen:", rspq.gen);
2407                 S3("u", "Intr delay:", qtimer_val(adap, &rx[i].rspq));
2408                 S3("u", "Intr pktcnt:",
2409                    adap->sge.counter_val[rx[i].rspq.pktcnt_idx]);
2410                 R("FL ID:", fl.cntxt_id);
2411                 R("FL size:", fl.size - 8);
2412                 R("FL pend:", fl.pend_cred);
2413                 R("FL avail:", fl.avail);
2414                 R("FL PIDX:", fl.pidx);
2415                 R("FL CIDX:", fl.cidx);
2416                 RL("RxPackets:", stats.pkts);
2417                 RL("RxImmPkts:", stats.imm);
2418                 RL("RxNoMem:", stats.nomem);
2419                 RL("FLAllocErr:", fl.alloc_failed);
2420                 RL("FLLrgAlcErr:", fl.large_alloc_failed);
2421                 RL("FLMapErr:", fl.mapping_err);
2422                 RL("FLLow:", fl.low);
2423                 RL("FLStarving:", fl.starving);
2424
2425         } else if (ciq_idx < ciq_entries) {
2426                 const struct sge_ofld_rxq *rx = &adap->sge.rdmaciq[ciq_idx * 4];
2427                 int n = min(4, adap->sge.rdmaciqs - 4 * ciq_idx);
2428
2429                 S("QType:", "RDMA-CIQ");
2430                 S("Interface:",
2431                   rx[i].rspq.netdev ? rx[i].rspq.netdev->name : "N/A");
2432                 R("RspQ ID:", rspq.abs_id);
2433                 R("RspQ size:", rspq.size);
2434                 R("RspQE size:", rspq.iqe_len);
2435                 R("RspQ CIDX:", rspq.cidx);
2436                 R("RspQ Gen:", rspq.gen);
2437                 S3("u", "Intr delay:", qtimer_val(adap, &rx[i].rspq));
2438                 S3("u", "Intr pktcnt:",
2439                    adap->sge.counter_val[rx[i].rspq.pktcnt_idx]);
2440                 RL("RxAN:", stats.an);
2441                 RL("RxNoMem:", stats.nomem);
2442
2443         } else if (ctrl_idx < ctrl_entries) {
2444                 const struct sge_ctrl_txq *tx = &adap->sge.ctrlq[ctrl_idx * 4];
2445                 int n = min(4, adap->params.nports - 4 * ctrl_idx);
2446
2447                 S("QType:", "Control");
2448                 T("TxQ ID:", q.cntxt_id);
2449                 T("TxQ size:", q.size);
2450                 T("TxQ inuse:", q.in_use);
2451                 T("TxQ CIDX:", q.cidx);
2452                 T("TxQ PIDX:", q.pidx);
2453                 TL("TxQFull:", q.stops);
2454                 TL("TxQRestarts:", q.restarts);
2455         } else if (fq_idx == 0) {
2456                 const struct sge_rspq *evtq = &adap->sge.fw_evtq;
2457
2458                 seq_printf(seq, "%-12s %16s\n", "QType:", "FW event queue");
2459                 seq_printf(seq, "%-12s %16u\n", "RspQ ID:", evtq->abs_id);
2460                 seq_printf(seq, "%-12s %16u\n", "RspQ size:", evtq->size);
2461                 seq_printf(seq, "%-12s %16u\n", "RspQE size:", evtq->iqe_len);
2462                 seq_printf(seq, "%-12s %16u\n", "RspQ CIDX:", evtq->cidx);
2463                 seq_printf(seq, "%-12s %16u\n", "RspQ Gen:", evtq->gen);
2464                 seq_printf(seq, "%-12s %16u\n", "Intr delay:",
2465                            qtimer_val(adap, evtq));
2466                 seq_printf(seq, "%-12s %16u\n", "Intr pktcnt:",
2467                            adap->sge.counter_val[evtq->pktcnt_idx]);
2468         }
2469 #undef R
2470 #undef RL
2471 #undef T
2472 #undef TL
2473 #undef S
2474 #undef R3
2475 #undef T3
2476 #undef S3
2477         return 0;
2478 }
2479
2480 static int sge_queue_entries(const struct adapter *adap)
2481 {
2482         return DIV_ROUND_UP(adap->sge.ethqsets, 4) +
2483                DIV_ROUND_UP(adap->sge.iscsiqsets, 4) +
2484                DIV_ROUND_UP(adap->sge.rdmaqs, 4) +
2485                DIV_ROUND_UP(adap->sge.rdmaciqs, 4) +
2486                DIV_ROUND_UP(MAX_CTRL_QUEUES, 4) + 1;
2487 }
2488
2489 static void *sge_queue_start(struct seq_file *seq, loff_t *pos)
2490 {
2491         int entries = sge_queue_entries(seq->private);
2492
2493         return *pos < entries ? (void *)((uintptr_t)*pos + 1) : NULL;
2494 }
2495
2496 static void sge_queue_stop(struct seq_file *seq, void *v)
2497 {
2498 }
2499
2500 static void *sge_queue_next(struct seq_file *seq, void *v, loff_t *pos)
2501 {
2502         int entries = sge_queue_entries(seq->private);
2503
2504         ++*pos;
2505         return *pos < entries ? (void *)((uintptr_t)*pos + 1) : NULL;
2506 }
2507
2508 static const struct seq_operations sge_qinfo_seq_ops = {
2509         .start = sge_queue_start,
2510         .next  = sge_queue_next,
2511         .stop  = sge_queue_stop,
2512         .show  = sge_qinfo_show
2513 };
2514
2515 static int sge_qinfo_open(struct inode *inode, struct file *file)
2516 {
2517         int res = seq_open(file, &sge_qinfo_seq_ops);
2518
2519         if (!res) {
2520                 struct seq_file *seq = file->private_data;
2521
2522                 seq->private = inode->i_private;
2523         }
2524         return res;
2525 }
2526
2527 static const struct file_operations sge_qinfo_debugfs_fops = {
2528         .owner   = THIS_MODULE,
2529         .open    = sge_qinfo_open,
2530         .read    = seq_read,
2531         .llseek  = seq_lseek,
2532         .release = seq_release,
2533 };
2534
2535 int mem_open(struct inode *inode, struct file *file)
2536 {
2537         unsigned int mem;
2538         struct adapter *adap;
2539
2540         file->private_data = inode->i_private;
2541
2542         mem = (uintptr_t)file->private_data & 0x3;
2543         adap = file->private_data - mem;
2544
2545         (void)t4_fwcache(adap, FW_PARAM_DEV_FWCACHE_FLUSH);
2546
2547         return 0;
2548 }
2549
2550 static ssize_t mem_read(struct file *file, char __user *buf, size_t count,
2551                         loff_t *ppos)
2552 {
2553         loff_t pos = *ppos;
2554         loff_t avail = file_inode(file)->i_size;
2555         unsigned int mem = (uintptr_t)file->private_data & 3;
2556         struct adapter *adap = file->private_data - mem;
2557         __be32 *data;
2558         int ret;
2559
2560         if (pos < 0)
2561                 return -EINVAL;
2562         if (pos >= avail)
2563                 return 0;
2564         if (count > avail - pos)
2565                 count = avail - pos;
2566
2567         data = t4_alloc_mem(count);
2568         if (!data)
2569                 return -ENOMEM;
2570
2571         spin_lock(&adap->win0_lock);
2572         ret = t4_memory_rw(adap, 0, mem, pos, count, data, T4_MEMORY_READ);
2573         spin_unlock(&adap->win0_lock);
2574         if (ret) {
2575                 t4_free_mem(data);
2576                 return ret;
2577         }
2578         ret = copy_to_user(buf, data, count);
2579
2580         t4_free_mem(data);
2581         if (ret)
2582                 return -EFAULT;
2583
2584         *ppos = pos + count;
2585         return count;
2586 }
2587 static const struct file_operations mem_debugfs_fops = {
2588         .owner   = THIS_MODULE,
2589         .open    = simple_open,
2590         .read    = mem_read,
2591         .llseek  = default_llseek,
2592 };
2593
2594 static int tid_info_show(struct seq_file *seq, void *v)
2595 {
2596         struct adapter *adap = seq->private;
2597         const struct tid_info *t = &adap->tids;
2598         enum chip_type chip = CHELSIO_CHIP_VERSION(adap->params.chip);
2599
2600         if (t4_read_reg(adap, LE_DB_CONFIG_A) & HASHEN_F) {
2601                 unsigned int sb;
2602
2603                 if (chip <= CHELSIO_T5)
2604                         sb = t4_read_reg(adap, LE_DB_SERVER_INDEX_A) / 4;
2605                 else
2606                         sb = t4_read_reg(adap, LE_DB_SRVR_START_INDEX_A);
2607
2608                 if (sb) {
2609                         seq_printf(seq, "TID range: 0..%u/%u..%u", sb - 1,
2610                                    adap->tids.hash_base,
2611                                    t->ntids - 1);
2612                         seq_printf(seq, ", in use: %u/%u\n",
2613                                    atomic_read(&t->tids_in_use),
2614                                    atomic_read(&t->hash_tids_in_use));
2615                 } else if (adap->flags & FW_OFLD_CONN) {
2616                         seq_printf(seq, "TID range: %u..%u/%u..%u",
2617                                    t->aftid_base,
2618                                    t->aftid_end,
2619                                    adap->tids.hash_base,
2620                                    t->ntids - 1);
2621                         seq_printf(seq, ", in use: %u/%u\n",
2622                                    atomic_read(&t->tids_in_use),
2623                                    atomic_read(&t->hash_tids_in_use));
2624                 } else {
2625                         seq_printf(seq, "TID range: %u..%u",
2626                                    adap->tids.hash_base,
2627                                    t->ntids - 1);
2628                         seq_printf(seq, ", in use: %u\n",
2629                                    atomic_read(&t->hash_tids_in_use));
2630                 }
2631         } else if (t->ntids) {
2632                 seq_printf(seq, "TID range: 0..%u", t->ntids - 1);
2633                 seq_printf(seq, ", in use: %u\n",
2634                            atomic_read(&t->tids_in_use));
2635         }
2636
2637         if (t->nstids)
2638                 seq_printf(seq, "STID range: %u..%u, in use: %u\n",
2639                            (!t->stid_base &&
2640                            (chip <= CHELSIO_T5)) ?
2641                            t->stid_base + 1 : t->stid_base,
2642                            t->stid_base + t->nstids - 1, t->stids_in_use);
2643         if (t->natids)
2644                 seq_printf(seq, "ATID range: 0..%u, in use: %u\n",
2645                            t->natids - 1, t->atids_in_use);
2646         seq_printf(seq, "FTID range: %u..%u\n", t->ftid_base,
2647                    t->ftid_base + t->nftids - 1);
2648         if (t->nsftids)
2649                 seq_printf(seq, "SFTID range: %u..%u in use: %u\n",
2650                            t->sftid_base, t->sftid_base + t->nsftids - 2,
2651                            t->sftids_in_use);
2652         if (t->ntids)
2653                 seq_printf(seq, "HW TID usage: %u IP users, %u IPv6 users\n",
2654                            t4_read_reg(adap, LE_DB_ACT_CNT_IPV4_A),
2655                            t4_read_reg(adap, LE_DB_ACT_CNT_IPV6_A));
2656         return 0;
2657 }
2658
2659 DEFINE_SIMPLE_DEBUGFS_FILE(tid_info);
2660
2661 static void add_debugfs_mem(struct adapter *adap, const char *name,
2662                             unsigned int idx, unsigned int size_mb)
2663 {
2664         debugfs_create_file_size(name, S_IRUSR, adap->debugfs_root,
2665                                  (void *)adap + idx, &mem_debugfs_fops,
2666                                  size_mb << 20);
2667 }
2668
2669 static int blocked_fl_open(struct inode *inode, struct file *file)
2670 {
2671         file->private_data = inode->i_private;
2672         return 0;
2673 }
2674
2675 static ssize_t blocked_fl_read(struct file *filp, char __user *ubuf,
2676                                size_t count, loff_t *ppos)
2677 {
2678         int len;
2679         const struct adapter *adap = filp->private_data;
2680         char *buf;
2681         ssize_t size = (adap->sge.egr_sz + 3) / 4 +
2682                         adap->sge.egr_sz / 32 + 2; /* includes ,/\n/\0 */
2683
2684         buf = kzalloc(size, GFP_KERNEL);
2685         if (!buf)
2686                 return -ENOMEM;
2687
2688         len = snprintf(buf, size - 1, "%*pb\n",
2689                        adap->sge.egr_sz, adap->sge.blocked_fl);
2690         len += sprintf(buf + len, "\n");
2691         size = simple_read_from_buffer(ubuf, count, ppos, buf, len);
2692         t4_free_mem(buf);
2693         return size;
2694 }
2695
2696 static ssize_t blocked_fl_write(struct file *filp, const char __user *ubuf,
2697                                 size_t count, loff_t *ppos)
2698 {
2699         int err;
2700         unsigned long *t;
2701         struct adapter *adap = filp->private_data;
2702
2703         t = kcalloc(BITS_TO_LONGS(adap->sge.egr_sz), sizeof(long), GFP_KERNEL);
2704         if (!t)
2705                 return -ENOMEM;
2706
2707         err = bitmap_parse_user(ubuf, count, t, adap->sge.egr_sz);
2708         if (err)
2709                 return err;
2710
2711         bitmap_copy(adap->sge.blocked_fl, t, adap->sge.egr_sz);
2712         t4_free_mem(t);
2713         return count;
2714 }
2715
2716 static const struct file_operations blocked_fl_fops = {
2717         .owner   = THIS_MODULE,
2718         .open    = blocked_fl_open,
2719         .read    = blocked_fl_read,
2720         .write   = blocked_fl_write,
2721         .llseek  = generic_file_llseek,
2722 };
2723
2724 struct mem_desc {
2725         unsigned int base;
2726         unsigned int limit;
2727         unsigned int idx;
2728 };
2729
2730 static int mem_desc_cmp(const void *a, const void *b)
2731 {
2732         return ((const struct mem_desc *)a)->base -
2733                ((const struct mem_desc *)b)->base;
2734 }
2735
2736 static void mem_region_show(struct seq_file *seq, const char *name,
2737                             unsigned int from, unsigned int to)
2738 {
2739         char buf[40];
2740
2741         string_get_size((u64)to - from + 1, 1, STRING_UNITS_2, buf,
2742                         sizeof(buf));
2743         seq_printf(seq, "%-15s %#x-%#x [%s]\n", name, from, to, buf);
2744 }
2745
2746 static int meminfo_show(struct seq_file *seq, void *v)
2747 {
2748         static const char * const memory[] = { "EDC0:", "EDC1:", "MC:",
2749                                         "MC0:", "MC1:"};
2750         static const char * const region[] = {
2751                 "DBQ contexts:", "IMSG contexts:", "FLM cache:", "TCBs:",
2752                 "Pstructs:", "Timers:", "Rx FL:", "Tx FL:", "Pstruct FL:",
2753                 "Tx payload:", "Rx payload:", "LE hash:", "iSCSI region:",
2754                 "TDDP region:", "TPT region:", "STAG region:", "RQ region:",
2755                 "RQUDP region:", "PBL region:", "TXPBL region:",
2756                 "DBVFIFO region:", "ULPRX state:", "ULPTX state:",
2757                 "On-chip queues:"
2758         };
2759
2760         int i, n;
2761         u32 lo, hi, used, alloc;
2762         struct mem_desc avail[4];
2763         struct mem_desc mem[ARRAY_SIZE(region) + 3];      /* up to 3 holes */
2764         struct mem_desc *md = mem;
2765         struct adapter *adap = seq->private;
2766
2767         for (i = 0; i < ARRAY_SIZE(mem); i++) {
2768                 mem[i].limit = 0;
2769                 mem[i].idx = i;
2770         }
2771
2772         /* Find and sort the populated memory ranges */
2773         i = 0;
2774         lo = t4_read_reg(adap, MA_TARGET_MEM_ENABLE_A);
2775         if (lo & EDRAM0_ENABLE_F) {
2776                 hi = t4_read_reg(adap, MA_EDRAM0_BAR_A);
2777                 avail[i].base = EDRAM0_BASE_G(hi) << 20;
2778                 avail[i].limit = avail[i].base + (EDRAM0_SIZE_G(hi) << 20);
2779                 avail[i].idx = 0;
2780                 i++;
2781         }
2782         if (lo & EDRAM1_ENABLE_F) {
2783                 hi = t4_read_reg(adap, MA_EDRAM1_BAR_A);
2784                 avail[i].base = EDRAM1_BASE_G(hi) << 20;
2785                 avail[i].limit = avail[i].base + (EDRAM1_SIZE_G(hi) << 20);
2786                 avail[i].idx = 1;
2787                 i++;
2788         }
2789
2790         if (is_t5(adap->params.chip)) {
2791                 if (lo & EXT_MEM0_ENABLE_F) {
2792                         hi = t4_read_reg(adap, MA_EXT_MEMORY0_BAR_A);
2793                         avail[i].base = EXT_MEM0_BASE_G(hi) << 20;
2794                         avail[i].limit =
2795                                 avail[i].base + (EXT_MEM0_SIZE_G(hi) << 20);
2796                         avail[i].idx = 3;
2797                         i++;
2798                 }
2799                 if (lo & EXT_MEM1_ENABLE_F) {
2800                         hi = t4_read_reg(adap, MA_EXT_MEMORY1_BAR_A);
2801                         avail[i].base = EXT_MEM1_BASE_G(hi) << 20;
2802                         avail[i].limit =
2803                                 avail[i].base + (EXT_MEM1_SIZE_G(hi) << 20);
2804                         avail[i].idx = 4;
2805                         i++;
2806                 }
2807         } else {
2808                 if (lo & EXT_MEM_ENABLE_F) {
2809                         hi = t4_read_reg(adap, MA_EXT_MEMORY_BAR_A);
2810                         avail[i].base = EXT_MEM_BASE_G(hi) << 20;
2811                         avail[i].limit =
2812                                 avail[i].base + (EXT_MEM_SIZE_G(hi) << 20);
2813                         avail[i].idx = 2;
2814                         i++;
2815                 }
2816         }
2817         if (!i)                                    /* no memory available */
2818                 return 0;
2819         sort(avail, i, sizeof(struct mem_desc), mem_desc_cmp, NULL);
2820
2821         (md++)->base = t4_read_reg(adap, SGE_DBQ_CTXT_BADDR_A);
2822         (md++)->base = t4_read_reg(adap, SGE_IMSG_CTXT_BADDR_A);
2823         (md++)->base = t4_read_reg(adap, SGE_FLM_CACHE_BADDR_A);
2824         (md++)->base = t4_read_reg(adap, TP_CMM_TCB_BASE_A);
2825         (md++)->base = t4_read_reg(adap, TP_CMM_MM_BASE_A);
2826         (md++)->base = t4_read_reg(adap, TP_CMM_TIMER_BASE_A);
2827         (md++)->base = t4_read_reg(adap, TP_CMM_MM_RX_FLST_BASE_A);
2828         (md++)->base = t4_read_reg(adap, TP_CMM_MM_TX_FLST_BASE_A);
2829         (md++)->base = t4_read_reg(adap, TP_CMM_MM_PS_FLST_BASE_A);
2830
2831         /* the next few have explicit upper bounds */
2832         md->base = t4_read_reg(adap, TP_PMM_TX_BASE_A);
2833         md->limit = md->base - 1 +
2834                     t4_read_reg(adap, TP_PMM_TX_PAGE_SIZE_A) *
2835                     PMTXMAXPAGE_G(t4_read_reg(adap, TP_PMM_TX_MAX_PAGE_A));
2836         md++;
2837
2838         md->base = t4_read_reg(adap, TP_PMM_RX_BASE_A);
2839         md->limit = md->base - 1 +
2840                     t4_read_reg(adap, TP_PMM_RX_PAGE_SIZE_A) *
2841                     PMRXMAXPAGE_G(t4_read_reg(adap, TP_PMM_RX_MAX_PAGE_A));
2842         md++;
2843
2844         if (t4_read_reg(adap, LE_DB_CONFIG_A) & HASHEN_F) {
2845                 if (CHELSIO_CHIP_VERSION(adap->params.chip) <= CHELSIO_T5) {
2846                         hi = t4_read_reg(adap, LE_DB_TID_HASHBASE_A) / 4;
2847                         md->base = t4_read_reg(adap, LE_DB_HASH_TID_BASE_A);
2848                  } else {
2849                         hi = t4_read_reg(adap, LE_DB_HASH_TID_BASE_A);
2850                         md->base = t4_read_reg(adap,
2851                                                LE_DB_HASH_TBL_BASE_ADDR_A);
2852                 }
2853                 md->limit = 0;
2854         } else {
2855                 md->base = 0;
2856                 md->idx = ARRAY_SIZE(region);  /* hide it */
2857         }
2858         md++;
2859
2860 #define ulp_region(reg) do { \
2861         md->base = t4_read_reg(adap, ULP_ ## reg ## _LLIMIT_A);\
2862         (md++)->limit = t4_read_reg(adap, ULP_ ## reg ## _ULIMIT_A); \
2863 } while (0)
2864
2865         ulp_region(RX_ISCSI);
2866         ulp_region(RX_TDDP);
2867         ulp_region(TX_TPT);
2868         ulp_region(RX_STAG);
2869         ulp_region(RX_RQ);
2870         ulp_region(RX_RQUDP);
2871         ulp_region(RX_PBL);
2872         ulp_region(TX_PBL);
2873 #undef ulp_region
2874         md->base = 0;
2875         md->idx = ARRAY_SIZE(region);
2876         if (!is_t4(adap->params.chip)) {
2877                 u32 size = 0;
2878                 u32 sge_ctrl = t4_read_reg(adap, SGE_CONTROL2_A);
2879                 u32 fifo_size = t4_read_reg(adap, SGE_DBVFIFO_SIZE_A);
2880
2881                 if (is_t5(adap->params.chip)) {
2882                         if (sge_ctrl & VFIFO_ENABLE_F)
2883                                 size = DBVFIFO_SIZE_G(fifo_size);
2884                 } else {
2885                         size = T6_DBVFIFO_SIZE_G(fifo_size);
2886                 }
2887
2888                 if (size) {
2889                         md->base = BASEADDR_G(t4_read_reg(adap,
2890                                         SGE_DBVFIFO_BADDR_A));
2891                         md->limit = md->base + (size << 2) - 1;
2892                 }
2893         }
2894
2895         md++;
2896
2897         md->base = t4_read_reg(adap, ULP_RX_CTX_BASE_A);
2898         md->limit = 0;
2899         md++;
2900         md->base = t4_read_reg(adap, ULP_TX_ERR_TABLE_BASE_A);
2901         md->limit = 0;
2902         md++;
2903
2904         md->base = adap->vres.ocq.start;
2905         if (adap->vres.ocq.size)
2906                 md->limit = md->base + adap->vres.ocq.size - 1;
2907         else
2908                 md->idx = ARRAY_SIZE(region);  /* hide it */
2909         md++;
2910
2911         /* add any address-space holes, there can be up to 3 */
2912         for (n = 0; n < i - 1; n++)
2913                 if (avail[n].limit < avail[n + 1].base)
2914                         (md++)->base = avail[n].limit;
2915         if (avail[n].limit)
2916                 (md++)->base = avail[n].limit;
2917
2918         n = md - mem;
2919         sort(mem, n, sizeof(struct mem_desc), mem_desc_cmp, NULL);
2920
2921         for (lo = 0; lo < i; lo++)
2922                 mem_region_show(seq, memory[avail[lo].idx], avail[lo].base,
2923                                 avail[lo].limit - 1);
2924
2925         seq_putc(seq, '\n');
2926         for (i = 0; i < n; i++) {
2927                 if (mem[i].idx >= ARRAY_SIZE(region))
2928                         continue;                        /* skip holes */
2929                 if (!mem[i].limit)
2930                         mem[i].limit = i < n - 1 ? mem[i + 1].base - 1 : ~0;
2931                 mem_region_show(seq, region[mem[i].idx], mem[i].base,
2932                                 mem[i].limit);
2933         }
2934
2935         seq_putc(seq, '\n');
2936         lo = t4_read_reg(adap, CIM_SDRAM_BASE_ADDR_A);
2937         hi = t4_read_reg(adap, CIM_SDRAM_ADDR_SIZE_A) + lo - 1;
2938         mem_region_show(seq, "uP RAM:", lo, hi);
2939
2940         lo = t4_read_reg(adap, CIM_EXTMEM2_BASE_ADDR_A);
2941         hi = t4_read_reg(adap, CIM_EXTMEM2_ADDR_SIZE_A) + lo - 1;
2942         mem_region_show(seq, "uP Extmem2:", lo, hi);
2943
2944         lo = t4_read_reg(adap, TP_PMM_RX_MAX_PAGE_A);
2945         seq_printf(seq, "\n%u Rx pages of size %uKiB for %u channels\n",
2946                    PMRXMAXPAGE_G(lo),
2947                    t4_read_reg(adap, TP_PMM_RX_PAGE_SIZE_A) >> 10,
2948                    (lo & PMRXNUMCHN_F) ? 2 : 1);
2949
2950         lo = t4_read_reg(adap, TP_PMM_TX_MAX_PAGE_A);
2951         hi = t4_read_reg(adap, TP_PMM_TX_PAGE_SIZE_A);
2952         seq_printf(seq, "%u Tx pages of size %u%ciB for %u channels\n",
2953                    PMTXMAXPAGE_G(lo),
2954                    hi >= (1 << 20) ? (hi >> 20) : (hi >> 10),
2955                    hi >= (1 << 20) ? 'M' : 'K', 1 << PMTXNUMCHN_G(lo));
2956         seq_printf(seq, "%u p-structs\n\n",
2957                    t4_read_reg(adap, TP_CMM_MM_MAX_PSTRUCT_A));
2958
2959         for (i = 0; i < 4; i++) {
2960                 if (CHELSIO_CHIP_VERSION(adap->params.chip) > CHELSIO_T5)
2961                         lo = t4_read_reg(adap, MPS_RX_MAC_BG_PG_CNT0_A + i * 4);
2962                 else
2963                         lo = t4_read_reg(adap, MPS_RX_PG_RSV0_A + i * 4);
2964                 if (is_t5(adap->params.chip)) {
2965                         used = T5_USED_G(lo);
2966                         alloc = T5_ALLOC_G(lo);
2967                 } else {
2968                         used = USED_G(lo);
2969                         alloc = ALLOC_G(lo);
2970                 }
2971                 /* For T6 these are MAC buffer groups */
2972                 seq_printf(seq, "Port %d using %u pages out of %u allocated\n",
2973                            i, used, alloc);
2974         }
2975         for (i = 0; i < adap->params.arch.nchan; i++) {
2976                 if (CHELSIO_CHIP_VERSION(adap->params.chip) > CHELSIO_T5)
2977                         lo = t4_read_reg(adap,
2978                                          MPS_RX_LPBK_BG_PG_CNT0_A + i * 4);
2979                 else
2980                         lo = t4_read_reg(adap, MPS_RX_PG_RSV4_A + i * 4);
2981                 if (is_t5(adap->params.chip)) {
2982                         used = T5_USED_G(lo);
2983                         alloc = T5_ALLOC_G(lo);
2984                 } else {
2985                         used = USED_G(lo);
2986                         alloc = ALLOC_G(lo);
2987                 }
2988                 /* For T6 these are MAC buffer groups */
2989                 seq_printf(seq,
2990                            "Loopback %d using %u pages out of %u allocated\n",
2991                            i, used, alloc);
2992         }
2993         return 0;
2994 }
2995
2996 static int meminfo_open(struct inode *inode, struct file *file)
2997 {
2998         return single_open(file, meminfo_show, inode->i_private);
2999 }
3000
3001 static const struct file_operations meminfo_fops = {
3002         .owner   = THIS_MODULE,
3003         .open    = meminfo_open,
3004         .read    = seq_read,
3005         .llseek  = seq_lseek,
3006         .release = single_release,
3007 };
3008 /* Add an array of Debug FS files.
3009  */
3010 void add_debugfs_files(struct adapter *adap,
3011                        struct t4_debugfs_entry *files,
3012                        unsigned int nfiles)
3013 {
3014         int i;
3015
3016         /* debugfs support is best effort */
3017         for (i = 0; i < nfiles; i++)
3018                 debugfs_create_file(files[i].name, files[i].mode,
3019                                     adap->debugfs_root,
3020                                     (void *)adap + files[i].data,
3021                                     files[i].ops);
3022 }
3023
3024 int t4_setup_debugfs(struct adapter *adap)
3025 {
3026         int i;
3027         u32 size = 0;
3028         struct dentry *de;
3029
3030         static struct t4_debugfs_entry t4_debugfs_files[] = {
3031                 { "cim_la", &cim_la_fops, S_IRUSR, 0 },
3032                 { "cim_pif_la", &cim_pif_la_fops, S_IRUSR, 0 },
3033                 { "cim_ma_la", &cim_ma_la_fops, S_IRUSR, 0 },
3034                 { "cim_qcfg", &cim_qcfg_fops, S_IRUSR, 0 },
3035                 { "clk", &clk_debugfs_fops, S_IRUSR, 0 },
3036                 { "devlog", &devlog_fops, S_IRUSR, 0 },
3037                 { "mbox0", &mbox_debugfs_fops, S_IRUSR | S_IWUSR, 0 },
3038                 { "mbox1", &mbox_debugfs_fops, S_IRUSR | S_IWUSR, 1 },
3039                 { "mbox2", &mbox_debugfs_fops, S_IRUSR | S_IWUSR, 2 },
3040                 { "mbox3", &mbox_debugfs_fops, S_IRUSR | S_IWUSR, 3 },
3041                 { "mbox4", &mbox_debugfs_fops, S_IRUSR | S_IWUSR, 4 },
3042                 { "mbox5", &mbox_debugfs_fops, S_IRUSR | S_IWUSR, 5 },
3043                 { "mbox6", &mbox_debugfs_fops, S_IRUSR | S_IWUSR, 6 },
3044                 { "mbox7", &mbox_debugfs_fops, S_IRUSR | S_IWUSR, 7 },
3045                 { "trace0", &mps_trc_debugfs_fops, S_IRUSR | S_IWUSR, 0 },
3046                 { "trace1", &mps_trc_debugfs_fops, S_IRUSR | S_IWUSR, 1 },
3047                 { "trace2", &mps_trc_debugfs_fops, S_IRUSR | S_IWUSR, 2 },
3048                 { "trace3", &mps_trc_debugfs_fops, S_IRUSR | S_IWUSR, 3 },
3049                 { "l2t", &t4_l2t_fops, S_IRUSR, 0},
3050                 { "mps_tcam", &mps_tcam_debugfs_fops, S_IRUSR, 0 },
3051                 { "rss", &rss_debugfs_fops, S_IRUSR, 0 },
3052                 { "rss_config", &rss_config_debugfs_fops, S_IRUSR, 0 },
3053                 { "rss_key", &rss_key_debugfs_fops, S_IRUSR, 0 },
3054                 { "rss_pf_config", &rss_pf_config_debugfs_fops, S_IRUSR, 0 },
3055                 { "rss_vf_config", &rss_vf_config_debugfs_fops, S_IRUSR, 0 },
3056                 { "sge_qinfo", &sge_qinfo_debugfs_fops, S_IRUSR, 0 },
3057                 { "ibq_tp0",  &cim_ibq_fops, S_IRUSR, 0 },
3058                 { "ibq_tp1",  &cim_ibq_fops, S_IRUSR, 1 },
3059                 { "ibq_ulp",  &cim_ibq_fops, S_IRUSR, 2 },
3060                 { "ibq_sge0", &cim_ibq_fops, S_IRUSR, 3 },
3061                 { "ibq_sge1", &cim_ibq_fops, S_IRUSR, 4 },
3062                 { "ibq_ncsi", &cim_ibq_fops, S_IRUSR, 5 },
3063                 { "obq_ulp0", &cim_obq_fops, S_IRUSR, 0 },
3064                 { "obq_ulp1", &cim_obq_fops, S_IRUSR, 1 },
3065                 { "obq_ulp2", &cim_obq_fops, S_IRUSR, 2 },
3066                 { "obq_ulp3", &cim_obq_fops, S_IRUSR, 3 },
3067                 { "obq_sge",  &cim_obq_fops, S_IRUSR, 4 },
3068                 { "obq_ncsi", &cim_obq_fops, S_IRUSR, 5 },
3069                 { "tp_la", &tp_la_fops, S_IRUSR, 0 },
3070                 { "ulprx_la", &ulprx_la_fops, S_IRUSR, 0 },
3071                 { "sensors", &sensors_debugfs_fops, S_IRUSR, 0 },
3072                 { "pm_stats", &pm_stats_debugfs_fops, S_IRUSR, 0 },
3073                 { "tx_rate", &tx_rate_debugfs_fops, S_IRUSR, 0 },
3074                 { "cctrl", &cctrl_tbl_debugfs_fops, S_IRUSR, 0 },
3075 #if IS_ENABLED(CONFIG_IPV6)
3076                 { "clip_tbl", &clip_tbl_debugfs_fops, S_IRUSR, 0 },
3077 #endif
3078                 { "tids", &tid_info_debugfs_fops, S_IRUSR, 0},
3079                 { "blocked_fl", &blocked_fl_fops, S_IRUSR | S_IWUSR, 0 },
3080                 { "meminfo", &meminfo_fops, S_IRUSR, 0 },
3081         };
3082
3083         /* Debug FS nodes common to all T5 and later adapters.
3084          */
3085         static struct t4_debugfs_entry t5_debugfs_files[] = {
3086                 { "obq_sge_rx_q0", &cim_obq_fops, S_IRUSR, 6 },
3087                 { "obq_sge_rx_q1", &cim_obq_fops, S_IRUSR, 7 },
3088         };
3089
3090         add_debugfs_files(adap,
3091                           t4_debugfs_files,
3092                           ARRAY_SIZE(t4_debugfs_files));
3093         if (!is_t4(adap->params.chip))
3094                 add_debugfs_files(adap,
3095                                   t5_debugfs_files,
3096                                   ARRAY_SIZE(t5_debugfs_files));
3097
3098         i = t4_read_reg(adap, MA_TARGET_MEM_ENABLE_A);
3099         if (i & EDRAM0_ENABLE_F) {
3100                 size = t4_read_reg(adap, MA_EDRAM0_BAR_A);
3101                 add_debugfs_mem(adap, "edc0", MEM_EDC0, EDRAM0_SIZE_G(size));
3102         }
3103         if (i & EDRAM1_ENABLE_F) {
3104                 size = t4_read_reg(adap, MA_EDRAM1_BAR_A);
3105                 add_debugfs_mem(adap, "edc1", MEM_EDC1, EDRAM1_SIZE_G(size));
3106         }
3107         if (is_t5(adap->params.chip)) {
3108                 if (i & EXT_MEM0_ENABLE_F) {
3109                         size = t4_read_reg(adap, MA_EXT_MEMORY0_BAR_A);
3110                         add_debugfs_mem(adap, "mc0", MEM_MC0,
3111                                         EXT_MEM0_SIZE_G(size));
3112                 }
3113                 if (i & EXT_MEM1_ENABLE_F) {
3114                         size = t4_read_reg(adap, MA_EXT_MEMORY1_BAR_A);
3115                         add_debugfs_mem(adap, "mc1", MEM_MC1,
3116                                         EXT_MEM1_SIZE_G(size));
3117                 }
3118         } else {
3119                 if (i & EXT_MEM_ENABLE_F) {
3120                         size = t4_read_reg(adap, MA_EXT_MEMORY_BAR_A);
3121                         add_debugfs_mem(adap, "mc", MEM_MC,
3122                                         EXT_MEM_SIZE_G(size));
3123                 }
3124         }
3125
3126         de = debugfs_create_file_size("flash", S_IRUSR, adap->debugfs_root, adap,
3127                                       &flash_debugfs_fops, adap->params.sf_size);
3128         debugfs_create_bool("use_backdoor", S_IWUSR | S_IRUSR,
3129                             adap->debugfs_root, &adap->use_bd);
3130         debugfs_create_bool("trace_rss", S_IWUSR | S_IRUSR,
3131                             adap->debugfs_root, &adap->trace_rss);
3132
3133         return 0;
3134 }