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_open(struct inode *inode, struct file *file)
 155 {
 156         int ret;
 157         unsigned int cfg;
 158         struct seq_tab *p;
 159         struct adapter *adap = inode->i_private;
 160
 161         ret = t4_cim_read(adap, UP_UP_DBG_LA_CFG_A, 1, &cfg);
 162         if (ret)
 163                 return ret;
 164
 165         p = seq_open_tab(file, adap->params.cim_la_size / 8, 8 * sizeof(u32), 1,
 166                          cfg & UPDBGLACAPTPCONLY_F ?
 167                          cim_la_show_3in1 : cim_la_show);
 168         if (!p)
 169                 return -ENOMEM;
 170
 171         ret = t4_cim_read_la(adap, (u32 *)p->data, NULL);
 172         if (ret)
 173                 seq_release_private(inode, file);
 174         return ret;
 175 }
 176
 177 static const struct file_operations cim_la_fops = {
 178         .owner   = THIS_MODULE,
 179         .open    = cim_la_open,
 180         .read    = seq_read,
 181         .llseek  = seq_lseek,
 182         .release = seq_release_private
 183 };
 184
 185 static int cim_pif_la_show(struct seq_file *seq, void *v, int idx)
 186 {
 187         const u32 *p = v;
 188
 189         if (v == SEQ_START_TOKEN) {
 190                 seq_puts(seq, "Cntl ID DataBE   Addr                 Data\n");
 191         } else if (idx < CIM_PIFLA_SIZE) {
 192                 seq_printf(seq, " %02x  %02x  %04x  %08x %08x%08x%08x%08x\n",
 193                            (p[5] >> 22) & 0xff, (p[5] >> 16) & 0x3f,
 194                            p[5] & 0xffff, p[4], p[3], p[2], p[1], p[0]);
 195         } else {
 196                 if (idx == CIM_PIFLA_SIZE)
 197                         seq_puts(seq, "\nCntl ID               Data\n");
 198                 seq_printf(seq, " %02x  %02x %08x%08x%08x%08x\n",
 199                            (p[4] >> 6) & 0xff, p[4] & 0x3f,
 200                            p[3], p[2], p[1], p[0]);
 201         }
 202         return 0;
 203 }
 204
 205 static int cim_pif_la_open(struct inode *inode, struct file *file)
 206 {
 207         struct seq_tab *p;
 208         struct adapter *adap = inode->i_private;
 209
 210         p = seq_open_tab(file, 2 * CIM_PIFLA_SIZE, 6 * sizeof(u32), 1,
 211                          cim_pif_la_show);
 212         if (!p)
 213                 return -ENOMEM;
 214
 215         t4_cim_read_pif_la(adap, (u32 *)p->data,
 216                            (u32 *)p->data + 6 * CIM_PIFLA_SIZE, NULL, NULL);
 217         return 0;
 218 }
 219
 220 static const struct file_operations cim_pif_la_fops = {
 221         .owner   = THIS_MODULE,
 222         .open    = cim_pif_la_open,
 223         .read    = seq_read,
 224         .llseek  = seq_lseek,
 225         .release = seq_release_private
 226 };
 227
 228 static int cim_ma_la_show(struct seq_file *seq, void *v, int idx)
 229 {
 230         const u32 *p = v;
 231
 232         if (v == SEQ_START_TOKEN) {
 233                 seq_puts(seq, "\n");
 234         } else if (idx < CIM_MALA_SIZE) {
 235                 seq_printf(seq, "%02x%08x%08x%08x%08x\n",
 236                            p[4], p[3], p[2], p[1], p[0]);
 237         } else {
 238                 if (idx == CIM_MALA_SIZE)
 239                         seq_puts(seq,
 240                                  "\nCnt ID Tag UE       Data       RDY VLD\n");
 241                 seq_printf(seq, "%3u %2u  %x   %u %08x%08x  %u   %u\n",
 242                            (p[2] >> 10) & 0xff, (p[2] >> 7) & 7,
 243                            (p[2] >> 3) & 0xf, (p[2] >> 2) & 1,
 244                            (p[1] >> 2) | ((p[2] & 3) << 30),
 245                            (p[0] >> 2) | ((p[1] & 3) << 30), (p[0] >> 1) & 1,
 246                            p[0] & 1);
 247         }
 248         return 0;
 249 }
 250
 251 static int cim_ma_la_open(struct inode *inode, struct file *file)
 252 {
 253         struct seq_tab *p;
 254         struct adapter *adap = inode->i_private;
 255
 256         p = seq_open_tab(file, 2 * CIM_MALA_SIZE, 5 * sizeof(u32), 1,
 257                          cim_ma_la_show);
 258         if (!p)
 259                 return -ENOMEM;
 260
 261         t4_cim_read_ma_la(adap, (u32 *)p->data,
 262                           (u32 *)p->data + 5 * CIM_MALA_SIZE);
 263         return 0;
 264 }
 265
 266 static const struct file_operations cim_ma_la_fops = {
 267         .owner   = THIS_MODULE,
 268         .open    = cim_ma_la_open,
 269         .read    = seq_read,
 270         .llseek  = seq_lseek,
 271         .release = seq_release_private
 272 };
 273
 274 static int cim_qcfg_show(struct seq_file *seq, void *v)
 275 {
 276         static const char * const qname[] = {
 277                 "TP0", "TP1", "ULP", "SGE0", "SGE1", "NC-SI",
 278                 "ULP0", "ULP1", "ULP2", "ULP3", "SGE", "NC-SI",
 279                 "SGE0-RX", "SGE1-RX"
 280         };
 281
 282         int i;
 283         struct adapter *adap = seq->private;
 284         u16 base[CIM_NUM_IBQ + CIM_NUM_OBQ_T5];
 285         u16 size[CIM_NUM_IBQ + CIM_NUM_OBQ_T5];
 286         u32 stat[(4 * (CIM_NUM_IBQ + CIM_NUM_OBQ_T5))];
 287         u16 thres[CIM_NUM_IBQ];
 288         u32 obq_wr_t4[2 * CIM_NUM_OBQ], *wr;
 289         u32 obq_wr_t5[2 * CIM_NUM_OBQ_T5];
 290         u32 *p = stat;
 291         int cim_num_obq = is_t4(adap->params.chip) ?
 292                                 CIM_NUM_OBQ : CIM_NUM_OBQ_T5;
 293
 294         i = t4_cim_read(adap, is_t4(adap->params.chip) ? UP_IBQ_0_RDADDR_A :
 295                         UP_IBQ_0_SHADOW_RDADDR_A,
 296                         ARRAY_SIZE(stat), stat);
 297         if (!i) {
 298                 if (is_t4(adap->params.chip)) {
 299                         i = t4_cim_read(adap, UP_OBQ_0_REALADDR_A,
 300                                         ARRAY_SIZE(obq_wr_t4), obq_wr_t4);
 301                                 wr = obq_wr_t4;
 302                 } else {
 303                         i = t4_cim_read(adap, UP_OBQ_0_SHADOW_REALADDR_A,
 304                                         ARRAY_SIZE(obq_wr_t5), obq_wr_t5);
 305                                 wr = obq_wr_t5;
 306                 }
 307         }
 308         if (i)
 309                 return i;
 310
 311         t4_read_cimq_cfg(adap, base, size, thres);
 312
 313         seq_printf(seq,
 314                    "  Queue  Base  Size Thres  RdPtr WrPtr  SOP  EOP Avail\n");
 315         for (i = 0; i < CIM_NUM_IBQ; i++, p += 4)
 316                 seq_printf(seq, "%7s %5x %5u %5u %6x  %4x %4u %4u %5u\n",
 317                            qname[i], base[i], size[i], thres[i],
 318                            IBQRDADDR_G(p[0]), IBQWRADDR_G(p[1]),
 319                            QUESOPCNT_G(p[3]), QUEEOPCNT_G(p[3]),
 320                            QUEREMFLITS_G(p[2]) * 16);
 321         for ( ; i < CIM_NUM_IBQ + cim_num_obq; i++, p += 4, wr += 2)
 322                 seq_printf(seq, "%7s %5x %5u %12x  %4x %4u %4u %5u\n",
 323                            qname[i], base[i], size[i],
 324                            QUERDADDR_G(p[0]) & 0x3fff, wr[0] - base[i],
 325                            QUESOPCNT_G(p[3]), QUEEOPCNT_G(p[3]),
 326                            QUEREMFLITS_G(p[2]) * 16);
 327         return 0;
 328 }
 329
 330 static int cim_qcfg_open(struct inode *inode, struct file *file)
 331 {
 332         return single_open(file, cim_qcfg_show, inode->i_private);
 333 }
 334
 335 static const struct file_operations cim_qcfg_fops = {
 336         .owner   = THIS_MODULE,
 337         .open    = cim_qcfg_open,
 338         .read    = seq_read,
 339         .llseek  = seq_lseek,
 340         .release = single_release,
 341 };
 342
 343 static int cimq_show(struct seq_file *seq, void *v, int idx)
 344 {
 345         const u32 *p = v;
 346
 347         seq_printf(seq, "%#06x: %08x %08x %08x %08x\n", idx * 16, p[0], p[1],
 348                    p[2], p[3]);
 349         return 0;
 350 }
 351
 352 static int cim_ibq_open(struct inode *inode, struct file *file)
 353 {
 354         int ret;
 355         struct seq_tab *p;
 356         unsigned int qid = (uintptr_t)inode->i_private & 7;
 357         struct adapter *adap = inode->i_private - qid;
 358
 359         p = seq_open_tab(file, CIM_IBQ_SIZE, 4 * sizeof(u32), 0, cimq_show);
 360         if (!p)
 361                 return -ENOMEM;
 362
 363         ret = t4_read_cim_ibq(adap, qid, (u32 *)p->data, CIM_IBQ_SIZE * 4);
 364         if (ret < 0)
 365                 seq_release_private(inode, file);
 366         else
 367                 ret = 0;
 368         return ret;
 369 }
 370
 371 static const struct file_operations cim_ibq_fops = {
 372         .owner   = THIS_MODULE,
 373         .open    = cim_ibq_open,
 374         .read    = seq_read,
 375         .llseek  = seq_lseek,
 376         .release = seq_release_private
 377 };
 378
 379 static int cim_obq_open(struct inode *inode, struct file *file)
 380 {
 381         int ret;
 382         struct seq_tab *p;
 383         unsigned int qid = (uintptr_t)inode->i_private & 7;
 384         struct adapter *adap = inode->i_private - qid;
 385
 386         p = seq_open_tab(file, 6 * CIM_OBQ_SIZE, 4 * sizeof(u32), 0, cimq_show);
 387         if (!p)
 388                 return -ENOMEM;
 389
 390         ret = t4_read_cim_obq(adap, qid, (u32 *)p->data, 6 * CIM_OBQ_SIZE * 4);
 391         if (ret < 0) {
 392                 seq_release_private(inode, file);
 393         } else {
 394                 seq_tab_trim(p, ret / 4);
 395                 ret = 0;
 396         }
 397         return ret;
 398 }
 399
 400 static const struct file_operations cim_obq_fops = {
 401         .owner   = THIS_MODULE,
 402         .open    = cim_obq_open,
 403         .read    = seq_read,
 404         .llseek  = seq_lseek,
 405         .release = seq_release_private
 406 };
 407
 408 struct field_desc {
 409         const char *name;
 410         unsigned int start;
 411         unsigned int width;
 412 };
 413
 414 static void field_desc_show(struct seq_file *seq, u64 v,
 415                             const struct field_desc *p)
 416 {
 417         char buf[32];
 418         int line_size = 0;
 419
 420         while (p->name) {
 421                 u64 mask = (1ULL << p->width) - 1;
 422                 int len = scnprintf(buf, sizeof(buf), "%s: %llu", p->name,
 423                                     ((unsigned long long)v >> p->start) & mask);
 424
 425                 if (line_size + len >= 79) {
 426                         line_size = 8;
 427                         seq_puts(seq, "\n        ");
 428                 }
 429                 seq_printf(seq, "%s ", buf);
 430                 line_size += len + 1;
 431                 p++;
 432         }
 433         seq_putc(seq, '\n');
 434 }
 435
 436 static struct field_desc tp_la0[] = {
 437         { "RcfOpCodeOut", 60, 4 },
 438         { "State", 56, 4 },
 439         { "WcfState", 52, 4 },
 440         { "RcfOpcSrcOut", 50, 2 },
 441         { "CRxError", 49, 1 },
 442         { "ERxError", 48, 1 },
 443         { "SanityFailed", 47, 1 },
 444         { "SpuriousMsg", 46, 1 },
 445         { "FlushInputMsg", 45, 1 },
 446         { "FlushInputCpl", 44, 1 },
 447         { "RssUpBit", 43, 1 },
 448         { "RssFilterHit", 42, 1 },
 449         { "Tid", 32, 10 },
 450         { "InitTcb", 31, 1 },
 451         { "LineNumber", 24, 7 },
 452         { "Emsg", 23, 1 },
 453         { "EdataOut", 22, 1 },
 454         { "Cmsg", 21, 1 },
 455         { "CdataOut", 20, 1 },
 456         { "EreadPdu", 19, 1 },
 457         { "CreadPdu", 18, 1 },
 458         { "TunnelPkt", 17, 1 },
 459         { "RcfPeerFin", 16, 1 },
 460         { "RcfReasonOut", 12, 4 },
 461         { "TxCchannel", 10, 2 },
 462         { "RcfTxChannel", 8, 2 },
 463         { "RxEchannel", 6, 2 },
 464         { "RcfRxChannel", 5, 1 },
 465         { "RcfDataOutSrdy", 4, 1 },
 466         { "RxDvld", 3, 1 },
 467         { "RxOoDvld", 2, 1 },
 468         { "RxCongestion", 1, 1 },
 469         { "TxCongestion", 0, 1 },
 470         { NULL }
 471 };
 472
 473 static int tp_la_show(struct seq_file *seq, void *v, int idx)
 474 {
 475         const u64 *p = v;
 476
 477         field_desc_show(seq, *p, tp_la0);
 478         return 0;
 479 }
 480
 481 static int tp_la_show2(struct seq_file *seq, void *v, int idx)
 482 {
 483         const u64 *p = v;
 484
 485         if (idx)
 486                 seq_putc(seq, '\n');
 487         field_desc_show(seq, p[0], tp_la0);
 488         if (idx < (TPLA_SIZE / 2 - 1) || p[1] != ~0ULL)
 489                 field_desc_show(seq, p[1], tp_la0);
 490         return 0;
 491 }
 492
 493 static int tp_la_show3(struct seq_file *seq, void *v, int idx)
 494 {
 495         static struct field_desc tp_la1[] = {
 496                 { "CplCmdIn", 56, 8 },
 497                 { "CplCmdOut", 48, 8 },
 498                 { "ESynOut", 47, 1 },
 499                 { "EAckOut", 46, 1 },
 500                 { "EFinOut", 45, 1 },
 501                 { "ERstOut", 44, 1 },
 502                 { "SynIn", 43, 1 },
 503                 { "AckIn", 42, 1 },
 504                 { "FinIn", 41, 1 },
 505                 { "RstIn", 40, 1 },
 506                 { "DataIn", 39, 1 },
 507                 { "DataInVld", 38, 1 },
 508                 { "PadIn", 37, 1 },
 509                 { "RxBufEmpty", 36, 1 },
 510                 { "RxDdp", 35, 1 },
 511                 { "RxFbCongestion", 34, 1 },
 512                 { "TxFbCongestion", 33, 1 },
 513                 { "TxPktSumSrdy", 32, 1 },
 514                 { "RcfUlpType", 28, 4 },
 515                 { "Eread", 27, 1 },
 516                 { "Ebypass", 26, 1 },
 517                 { "Esave", 25, 1 },
 518                 { "Static0", 24, 1 },
 519                 { "Cread", 23, 1 },
 520                 { "Cbypass", 22, 1 },
 521                 { "Csave", 21, 1 },
 522                 { "CPktOut", 20, 1 },
 523                 { "RxPagePoolFull", 18, 2 },
 524                 { "RxLpbkPkt", 17, 1 },
 525                 { "TxLpbkPkt", 16, 1 },
 526                 { "RxVfValid", 15, 1 },
 527                 { "SynLearned", 14, 1 },
 528                 { "SetDelEntry", 13, 1 },
 529                 { "SetInvEntry", 12, 1 },
 530                 { "CpcmdDvld", 11, 1 },
 531                 { "CpcmdSave", 10, 1 },
 532                 { "RxPstructsFull", 8, 2 },
 533                 { "EpcmdDvld", 7, 1 },
 534                 { "EpcmdFlush", 6, 1 },
 535                 { "EpcmdTrimPrefix", 5, 1 },
 536                 { "EpcmdTrimPostfix", 4, 1 },
 537                 { "ERssIp4Pkt", 3, 1 },
 538                 { "ERssIp6Pkt", 2, 1 },
 539                 { "ERssTcpUdpPkt", 1, 1 },
 540                 { "ERssFceFipPkt", 0, 1 },
 541                 { NULL }
 542         };
 543         static struct field_desc tp_la2[] = {
 544                 { "CplCmdIn", 56, 8 },
 545                 { "MpsVfVld", 55, 1 },
 546                 { "MpsPf", 52, 3 },
 547                 { "MpsVf", 44, 8 },
 548                 { "SynIn", 43, 1 },
 549                 { "AckIn", 42, 1 },
 550                 { "FinIn", 41, 1 },
 551                 { "RstIn", 40, 1 },
 552                 { "DataIn", 39, 1 },
 553                 { "DataInVld", 38, 1 },
 554                 { "PadIn", 37, 1 },
 555                 { "RxBufEmpty", 36, 1 },
 556                 { "RxDdp", 35, 1 },
 557                 { "RxFbCongestion", 34, 1 },
 558                 { "TxFbCongestion", 33, 1 },
 559                 { "TxPktSumSrdy", 32, 1 },
 560                 { "RcfUlpType", 28, 4 },
 561                 { "Eread", 27, 1 },
 562                 { "Ebypass", 26, 1 },
 563                 { "Esave", 25, 1 },
 564                 { "Static0", 24, 1 },
 565                 { "Cread", 23, 1 },
 566                 { "Cbypass", 22, 1 },
 567                 { "Csave", 21, 1 },
 568                 { "CPktOut", 20, 1 },
 569                 { "RxPagePoolFull", 18, 2 },
 570                 { "RxLpbkPkt", 17, 1 },
 571                 { "TxLpbkPkt", 16, 1 },
 572                 { "RxVfValid", 15, 1 },
 573                 { "SynLearned", 14, 1 },
 574                 { "SetDelEntry", 13, 1 },
 575                 { "SetInvEntry", 12, 1 },
 576                 { "CpcmdDvld", 11, 1 },
 577                 { "CpcmdSave", 10, 1 },
 578                 { "RxPstructsFull", 8, 2 },
 579                 { "EpcmdDvld", 7, 1 },
 580                 { "EpcmdFlush", 6, 1 },
 581                 { "EpcmdTrimPrefix", 5, 1 },
 582                 { "EpcmdTrimPostfix", 4, 1 },
 583                 { "ERssIp4Pkt", 3, 1 },
 584                 { "ERssIp6Pkt", 2, 1 },
 585                 { "ERssTcpUdpPkt", 1, 1 },
 586                 { "ERssFceFipPkt", 0, 1 },
 587                 { NULL }
 588         };
 589         const u64 *p = v;
 590
 591         if (idx)
 592                 seq_putc(seq, '\n');
 593         field_desc_show(seq, p[0], tp_la0);
 594         if (idx < (TPLA_SIZE / 2 - 1) || p[1] != ~0ULL)
 595                 field_desc_show(seq, p[1], (p[0] & BIT(17)) ? tp_la2 : tp_la1);
 596         return 0;
 597 }
 598
 599 static int tp_la_open(struct inode *inode, struct file *file)
 600 {
 601         struct seq_tab *p;
 602         struct adapter *adap = inode->i_private;
 603
 604         switch (DBGLAMODE_G(t4_read_reg(adap, TP_DBG_LA_CONFIG_A))) {
 605         case 2:
 606                 p = seq_open_tab(file, TPLA_SIZE / 2, 2 * sizeof(u64), 0,
 607                                  tp_la_show2);
 608                 break;
 609         case 3:
 610                 p = seq_open_tab(file, TPLA_SIZE / 2, 2 * sizeof(u64), 0,
 611                                  tp_la_show3);
 612                 break;
 613         default:
 614                 p = seq_open_tab(file, TPLA_SIZE, sizeof(u64), 0, tp_la_show);
 615         }
 616         if (!p)
 617                 return -ENOMEM;
 618
 619         t4_tp_read_la(adap, (u64 *)p->data, NULL);
 620         return 0;
 621 }
 622
 623 static ssize_t tp_la_write(struct file *file, const char __user *buf,
 624                            size_t count, loff_t *pos)
 625 {
 626         int err;
 627         char s[32];
 628         unsigned long val;
 629         size_t size = min(sizeof(s) - 1, count);
 630         struct adapter *adap = file_inode(file)->i_private;
 631
 632         if (copy_from_user(s, buf, size))
 633                 return -EFAULT;
 634         s[size] = '\0';
 635         err = kstrtoul(s, 0, &val);
 636         if (err)
 637                 return err;
 638         if (val > 0xffff)
 639                 return -EINVAL;
 640         adap->params.tp.la_mask = val << 16;
 641         t4_set_reg_field(adap, TP_DBG_LA_CONFIG_A, 0xffff0000U,
 642                          adap->params.tp.la_mask);
 643         return count;
 644 }
 645
 646 static const struct file_operations tp_la_fops = {
 647         .owner   = THIS_MODULE,
 648         .open    = tp_la_open,
 649         .read    = seq_read,
 650         .llseek  = seq_lseek,
 651         .release = seq_release_private,
 652         .write   = tp_la_write
 653 };
 654
 655 static int ulprx_la_show(struct seq_file *seq, void *v, int idx)
 656 {
 657         const u32 *p = v;
 658
 659         if (v == SEQ_START_TOKEN)
 660                 seq_puts(seq, "      Pcmd        Type   Message"
 661                          "                Data\n");
 662         else
 663                 seq_printf(seq, "%08x%08x  %4x  %08x  %08x%08x%08x%08x\n",
 664                            p[1], p[0], p[2], p[3], p[7], p[6], p[5], p[4]);
 665         return 0;
 666 }
 667
 668 static int ulprx_la_open(struct inode *inode, struct file *file)
 669 {
 670         struct seq_tab *p;
 671         struct adapter *adap = inode->i_private;
 672
 673         p = seq_open_tab(file, ULPRX_LA_SIZE, 8 * sizeof(u32), 1,
 674                          ulprx_la_show);
 675         if (!p)
 676                 return -ENOMEM;
 677
 678         t4_ulprx_read_la(adap, (u32 *)p->data);
 679         return 0;
 680 }
 681
 682 static const struct file_operations ulprx_la_fops = {
 683         .owner   = THIS_MODULE,
 684         .open    = ulprx_la_open,
 685         .read    = seq_read,
 686         .llseek  = seq_lseek,
 687         .release = seq_release_private
 688 };
 689
 690 /* Show the PM memory stats.  These stats include:
 691  *
 692  * TX:
 693  *   Read: memory read operation
 694  *   Write Bypass: cut-through
 695  *   Bypass + mem: cut-through and save copy
 696  *
 697  * RX:
 698  *   Read: memory read
 699  *   Write Bypass: cut-through
 700  *   Flush: payload trim or drop
 701  */
 702 static int pm_stats_show(struct seq_file *seq, void *v)
 703 {
 704         static const char * const tx_pm_stats[] = {
 705                 "Read:", "Write bypass:", "Write mem:", "Bypass + mem:"
 706         };
 707         static const char * const rx_pm_stats[] = {
 708                 "Read:", "Write bypass:", "Write mem:", "Flush:"
 709         };
 710
 711         int i;
 712         u32 tx_cnt[PM_NSTATS], rx_cnt[PM_NSTATS];
 713         u64 tx_cyc[PM_NSTATS], rx_cyc[PM_NSTATS];
 714         struct adapter *adap = seq->private;
 715
 716         t4_pmtx_get_stats(adap, tx_cnt, tx_cyc);
 717         t4_pmrx_get_stats(adap, rx_cnt, rx_cyc);
 718
 719         seq_printf(seq, "%13s %10s  %20s\n", " ", "Tx pcmds", "Tx bytes");
 720         for (i = 0; i < PM_NSTATS - 1; i++)
 721                 seq_printf(seq, "%-13s %10u  %20llu\n",
 722                            tx_pm_stats[i], tx_cnt[i], tx_cyc[i]);
 723
 724         seq_printf(seq, "%13s %10s  %20s\n", " ", "Rx pcmds", "Rx bytes");
 725         for (i = 0; i < PM_NSTATS - 1; i++)
 726                 seq_printf(seq, "%-13s %10u  %20llu\n",
 727                            rx_pm_stats[i], rx_cnt[i], rx_cyc[i]);
 728         return 0;
 729 }
 730
 731 static int pm_stats_open(struct inode *inode, struct file *file)
 732 {
 733         return single_open(file, pm_stats_show, inode->i_private);
 734 }
 735
 736 static ssize_t pm_stats_clear(struct file *file, const char __user *buf,
 737                               size_t count, loff_t *pos)
 738 {
 739         struct adapter *adap = file_inode(file)->i_private;
 740
 741         t4_write_reg(adap, PM_RX_STAT_CONFIG_A, 0);
 742         t4_write_reg(adap, PM_TX_STAT_CONFIG_A, 0);
 743         return count;
 744 }
 745
 746 static const struct file_operations pm_stats_debugfs_fops = {
 747         .owner   = THIS_MODULE,
 748         .open    = pm_stats_open,
 749         .read    = seq_read,
 750         .llseek  = seq_lseek,
 751         .release = single_release,
 752         .write   = pm_stats_clear
 753 };
 754
 755 static int tx_rate_show(struct seq_file *seq, void *v)
 756 {
 757         u64 nrate[NCHAN], orate[NCHAN];
 758         struct adapter *adap = seq->private;
 759
 760         t4_get_chan_txrate(adap, nrate, orate);
 761         if (adap->params.arch.nchan == NCHAN) {
 762                 seq_puts(seq, "              channel 0   channel 1   "
 763                          "channel 2   channel 3\n");
 764                 seq_printf(seq, "NIC B/s:     %10llu  %10llu  %10llu  %10llu\n",
 765                            (unsigned long long)nrate[0],
 766                            (unsigned long long)nrate[1],
 767                            (unsigned long long)nrate[2],
 768                            (unsigned long long)nrate[3]);
 769                 seq_printf(seq, "Offload B/s: %10llu  %10llu  %10llu  %10llu\n",
 770                            (unsigned long long)orate[0],
 771                            (unsigned long long)orate[1],
 772                            (unsigned long long)orate[2],
 773                            (unsigned long long)orate[3]);
 774         } else {
 775                 seq_puts(seq, "              channel 0   channel 1\n");
 776                 seq_printf(seq, "NIC B/s:     %10llu  %10llu\n",
 777                            (unsigned long long)nrate[0],
 778                            (unsigned long long)nrate[1]);
 779                 seq_printf(seq, "Offload B/s: %10llu  %10llu\n",
 780                            (unsigned long long)orate[0],
 781                            (unsigned long long)orate[1]);
 782         }
 783         return 0;
 784 }
 785
 786 DEFINE_SIMPLE_DEBUGFS_FILE(tx_rate);
 787
 788 static int cctrl_tbl_show(struct seq_file *seq, void *v)
 789 {
 790         static const char * const dec_fac[] = {
 791                 "0.5", "0.5625", "0.625", "0.6875", "0.75", "0.8125", "0.875",
 792                 "0.9375" };
 793
 794         int i;
 795         u16 (*incr)[NCCTRL_WIN];
 796         struct adapter *adap = seq->private;
 797
 798         incr = kmalloc(sizeof(*incr) * NMTUS, GFP_KERNEL);
 799         if (!incr)
 800                 return -ENOMEM;
 801
 802         t4_read_cong_tbl(adap, incr);
 803
 804         for (i = 0; i < NCCTRL_WIN; ++i) {
 805                 seq_printf(seq, "%2d: %4u %4u %4u %4u %4u %4u %4u %4u\n", i,
 806                            incr[0][i], incr[1][i], incr[2][i], incr[3][i],
 807                            incr[4][i], incr[5][i], incr[6][i], incr[7][i]);
 808                 seq_printf(seq, "%8u %4u %4u %4u %4u %4u %4u %4u %5u %s\n",
 809                            incr[8][i], incr[9][i], incr[10][i], incr[11][i],
 810                            incr[12][i], incr[13][i], incr[14][i], incr[15][i],
 811                            adap->params.a_wnd[i],
 812                            dec_fac[adap->params.b_wnd[i]]);
 813         }
 814
 815         kfree(incr);
 816         return 0;
 817 }
 818
 819 DEFINE_SIMPLE_DEBUGFS_FILE(cctrl_tbl);
 820
 821 /* Format a value in a unit that differs from the value's native unit by the
 822  * given factor.
 823  */
 824 static char *unit_conv(char *buf, size_t len, unsigned int val,
 825                        unsigned int factor)
 826 {
 827         unsigned int rem = val % factor;
 828
 829         if (rem == 0) {
 830                 snprintf(buf, len, "%u", val / factor);
 831         } else {
 832                 while (rem % 10 == 0)
 833                         rem /= 10;
 834                 snprintf(buf, len, "%u.%u", val / factor, rem);
 835         }
 836         return buf;
 837 }
 838
 839 static int clk_show(struct seq_file *seq, void *v)
 840 {
 841         char buf[32];
 842         struct adapter *adap = seq->private;
 843         unsigned int cclk_ps = 1000000000 / adap->params.vpd.cclk;  /* in ps */
 844         u32 res = t4_read_reg(adap, TP_TIMER_RESOLUTION_A);
 845         unsigned int tre = TIMERRESOLUTION_G(res);
 846         unsigned int dack_re = DELAYEDACKRESOLUTION_G(res);
 847         unsigned long long tp_tick_us = (cclk_ps << tre) / 1000000; /* in us */
 848
 849         seq_printf(seq, "Core clock period: %s ns\n",
 850                    unit_conv(buf, sizeof(buf), cclk_ps, 1000));
 851         seq_printf(seq, "TP timer tick: %s us\n",
 852                    unit_conv(buf, sizeof(buf), (cclk_ps << tre), 1000000));
 853         seq_printf(seq, "TCP timestamp tick: %s us\n",
 854                    unit_conv(buf, sizeof(buf),
 855                              (cclk_ps << TIMESTAMPRESOLUTION_G(res)), 1000000));
 856         seq_printf(seq, "DACK tick: %s us\n",
 857                    unit_conv(buf, sizeof(buf), (cclk_ps << dack_re), 1000000));
 858         seq_printf(seq, "DACK timer: %u us\n",
 859                    ((cclk_ps << dack_re) / 1000000) *
 860                    t4_read_reg(adap, TP_DACK_TIMER_A));
 861         seq_printf(seq, "Retransmit min: %llu us\n",
 862                    tp_tick_us * t4_read_reg(adap, TP_RXT_MIN_A));
 863         seq_printf(seq, "Retransmit max: %llu us\n",
 864                    tp_tick_us * t4_read_reg(adap, TP_RXT_MAX_A));
 865         seq_printf(seq, "Persist timer min: %llu us\n",
 866                    tp_tick_us * t4_read_reg(adap, TP_PERS_MIN_A));
 867         seq_printf(seq, "Persist timer max: %llu us\n",
 868                    tp_tick_us * t4_read_reg(adap, TP_PERS_MAX_A));
 869         seq_printf(seq, "Keepalive idle timer: %llu us\n",
 870                    tp_tick_us * t4_read_reg(adap, TP_KEEP_IDLE_A));
 871         seq_printf(seq, "Keepalive interval: %llu us\n",
 872                    tp_tick_us * t4_read_reg(adap, TP_KEEP_INTVL_A));
 873         seq_printf(seq, "Initial SRTT: %llu us\n",
 874                    tp_tick_us * INITSRTT_G(t4_read_reg(adap, TP_INIT_SRTT_A)));
 875         seq_printf(seq, "FINWAIT2 timer: %llu us\n",
 876                    tp_tick_us * t4_read_reg(adap, TP_FINWAIT2_TIMER_A));
 877
 878         return 0;
 879 }
 880
 881 DEFINE_SIMPLE_DEBUGFS_FILE(clk);
 882
 883 /* Firmware Device Log dump. */
 884 static const char * const devlog_level_strings[] = {
 885         [FW_DEVLOG_LEVEL_EMERG]         = "EMERG",
 886         [FW_DEVLOG_LEVEL_CRIT]          = "CRIT",
 887         [FW_DEVLOG_LEVEL_ERR]           = "ERR",
 888         [FW_DEVLOG_LEVEL_NOTICE]        = "NOTICE",
 889         [FW_DEVLOG_LEVEL_INFO]          = "INFO",
 890         [FW_DEVLOG_LEVEL_DEBUG]         = "DEBUG"
 891 };
 892
 893 static const char * const devlog_facility_strings[] = {
 894         [FW_DEVLOG_FACILITY_CORE]       = "CORE",
 895         [FW_DEVLOG_FACILITY_SCHED]      = "SCHED",
 896         [FW_DEVLOG_FACILITY_TIMER]      = "TIMER",
 897         [FW_DEVLOG_FACILITY_RES]        = "RES",
 898         [FW_DEVLOG_FACILITY_HW]         = "HW",
 899         [FW_DEVLOG_FACILITY_FLR]        = "FLR",
 900         [FW_DEVLOG_FACILITY_DMAQ]       = "DMAQ",
 901         [FW_DEVLOG_FACILITY_PHY]        = "PHY",
 902         [FW_DEVLOG_FACILITY_MAC]        = "MAC",
 903         [FW_DEVLOG_FACILITY_PORT]       = "PORT",
 904         [FW_DEVLOG_FACILITY_VI]         = "VI",
 905         [FW_DEVLOG_FACILITY_FILTER]     = "FILTER",
 906         [FW_DEVLOG_FACILITY_ACL]        = "ACL",
 907         [FW_DEVLOG_FACILITY_TM]         = "TM",
 908         [FW_DEVLOG_FACILITY_QFC]        = "QFC",
 909         [FW_DEVLOG_FACILITY_DCB]        = "DCB",
 910         [FW_DEVLOG_FACILITY_ETH]        = "ETH",
 911         [FW_DEVLOG_FACILITY_OFLD]       = "OFLD",
 912         [FW_DEVLOG_FACILITY_RI]         = "RI",
 913         [FW_DEVLOG_FACILITY_ISCSI]      = "ISCSI",
 914         [FW_DEVLOG_FACILITY_FCOE]       = "FCOE",
 915         [FW_DEVLOG_FACILITY_FOISCSI]    = "FOISCSI",
 916         [FW_DEVLOG_FACILITY_FOFCOE]     = "FOFCOE"
 917 };
 918
 919 /* Information gathered by Device Log Open routine for the display routine.
 920  */
 921 struct devlog_info {
 922         unsigned int nentries;          /* number of entries in log[] */
 923         unsigned int first;             /* first [temporal] entry in log[] */
 924         struct fw_devlog_e log[0];      /* Firmware Device Log */
 925 };
 926
 927 /* Dump a Firmaware Device Log entry.
 928  */
 929 static int devlog_show(struct seq_file *seq, void *v)
 930 {
 931         if (v == SEQ_START_TOKEN)
 932                 seq_printf(seq, "%10s  %15s  %8s  %8s  %s\n",
 933                            "Seq#", "Tstamp", "Level", "Facility", "Message");
 934         else {
 935                 struct devlog_info *dinfo = seq->private;
 936                 int fidx = (uintptr_t)v - 2;
 937                 unsigned long index;
 938                 struct fw_devlog_e *e;
 939
 940                 /* Get a pointer to the log entry to display.  Skip unused log
 941                  * entries.
 942                  */
 943                 index = dinfo->first + fidx;
 944                 if (index >= dinfo->nentries)
 945                         index -= dinfo->nentries;
 946                 e = &dinfo->log[index];
 947                 if (e->timestamp == 0)
 948                         return 0;
 949
 950                 /* Print the message.  This depends on the firmware using
 951                  * exactly the same formating strings as the kernel so we may
 952                  * eventually have to put a format interpreter in here ...
 953                  */
 954                 seq_printf(seq, "%10d  %15llu  %8s  %8s  ",
 955                            e->seqno, e->timestamp,
 956                            (e->level < ARRAY_SIZE(devlog_level_strings)
 957                             ? devlog_level_strings[e->level]
 958                             : "UNKNOWN"),
 959                            (e->facility < ARRAY_SIZE(devlog_facility_strings)
 960                             ? devlog_facility_strings[e->facility]
 961                             : "UNKNOWN"));
 962                 seq_printf(seq, e->fmt, e->params[0], e->params[1],
 963                            e->params[2], e->params[3], e->params[4],
 964                            e->params[5], e->params[6], e->params[7]);
 965         }
 966         return 0;
 967 }
 968
 969 /* Sequential File Operations for Device Log.
 970  */
 971 static inline void *devlog_get_idx(struct devlog_info *dinfo, loff_t pos)
 972 {
 973         if (pos > dinfo->nentries)
 974                 return NULL;
 975
 976         return (void *)(uintptr_t)(pos + 1);
 977 }
 978
 979 static void *devlog_start(struct seq_file *seq, loff_t *pos)
 980 {
 981         struct devlog_info *dinfo = seq->private;
 982
 983         return (*pos
 984                 ? devlog_get_idx(dinfo, *pos)
 985                 : SEQ_START_TOKEN);
 986 }
 987
 988 static void *devlog_next(struct seq_file *seq, void *v, loff_t *pos)
 989 {
 990         struct devlog_info *dinfo = seq->private;
 991
 992         (*pos)++;
 993         return devlog_get_idx(dinfo, *pos);
 994 }
 995
 996 static void devlog_stop(struct seq_file *seq, void *v)
 997 {
 998 }
 999
1000 static const struct seq_operations devlog_seq_ops = {
1001         .start = devlog_start,
1002         .next  = devlog_next,
1003         .stop  = devlog_stop,
1004         .show  = devlog_show
1005 };
1006
1007 /* Set up for reading the firmware's device log.  We read the entire log here
1008  * and then display it incrementally in devlog_show().
1009  */
1010 static int devlog_open(struct inode *inode, struct file *file)
1011 {
1012         struct adapter *adap = inode->i_private;
1013         struct devlog_params *dparams = &adap->params.devlog;
1014         struct devlog_info *dinfo;
1015         unsigned int index;
1016         u32 fseqno;
1017         int ret;
1018
1019         /* If we don't know where the log is we can't do anything.
1020          */
1021         if (dparams->start == 0)
1022                 return -ENXIO;
1023
1024         /* Allocate the space to read in the firmware's device log and set up
1025          * for the iterated call to our display function.
1026          */
1027         dinfo = __seq_open_private(file, &devlog_seq_ops,
1028                                    sizeof(*dinfo) + dparams->size);
1029         if (!dinfo)
1030                 return -ENOMEM;
1031
1032         /* Record the basic log buffer information and read in the raw log.
1033          */
1034         dinfo->nentries = (dparams->size / sizeof(struct fw_devlog_e));
1035         dinfo->first = 0;
1036         spin_lock(&adap->win0_lock);
1037         ret = t4_memory_rw(adap, adap->params.drv_memwin, dparams->memtype,
1038                            dparams->start, dparams->size, (__be32 *)dinfo->log,
1039                            T4_MEMORY_READ);
1040         spin_unlock(&adap->win0_lock);
1041         if (ret) {
1042                 seq_release_private(inode, file);
1043                 return ret;
1044         }
1045
1046         /* Translate log multi-byte integral elements into host native format
1047          * and determine where the first entry in the log is.
1048          */
1049         for (fseqno = ~((u32)0), index = 0; index < dinfo->nentries; index++) {
1050                 struct fw_devlog_e *e = &dinfo->log[index];
1051                 int i;
1052                 __u32 seqno;
1053
1054                 if (e->timestamp == 0)
1055                         continue;
1056
1057                 e->timestamp = (__force __be64)be64_to_cpu(e->timestamp);
1058                 seqno = be32_to_cpu(e->seqno);
1059                 for (i = 0; i < 8; i++)
1060                         e->params[i] =
1061                                 (__force __be32)be32_to_cpu(e->params[i]);
1062
1063                 if (seqno < fseqno) {
1064                         fseqno = seqno;
1065                         dinfo->first = index;
1066                 }
1067         }
1068         return 0;
1069 }
1070
1071 static const struct file_operations devlog_fops = {
1072         .owner   = THIS_MODULE,
1073         .open    = devlog_open,
1074         .read    = seq_read,
1075         .llseek  = seq_lseek,
1076         .release = seq_release_private
1077 };
1078
1079 static int mbox_show(struct seq_file *seq, void *v)
1080 {
1081         static const char * const owner[] = { "none", "FW", "driver",
1082                                               "unknown" };
1083
1084         int i;
1085         unsigned int mbox = (uintptr_t)seq->private & 7;
1086         struct adapter *adap = seq->private - mbox;
1087         void __iomem *addr = adap->regs + PF_REG(mbox, CIM_PF_MAILBOX_DATA_A);
1088         unsigned int ctrl_reg = (is_t4(adap->params.chip)
1089                                  ? CIM_PF_MAILBOX_CTRL_A
1090                                  : CIM_PF_MAILBOX_CTRL_SHADOW_COPY_A);
1091         void __iomem *ctrl = adap->regs + PF_REG(mbox, ctrl_reg);
1092
1093         i = MBOWNER_G(readl(ctrl));
1094         seq_printf(seq, "mailbox owned by %s\n\n", owner[i]);
1095
1096         for (i = 0; i < MBOX_LEN; i += 8)
1097                 seq_printf(seq, "%016llx\n",
1098                            (unsigned long long)readq(addr + i));
1099         return 0;
1100 }
1101
1102 static int mbox_open(struct inode *inode, struct file *file)
1103 {
1104         return single_open(file, mbox_show, inode->i_private);
1105 }
1106
1107 static ssize_t mbox_write(struct file *file, const char __user *buf,
1108                           size_t count, loff_t *pos)
1109 {
1110         int i;
1111         char c = '\n', s[256];
1112         unsigned long long data[8];
1113         const struct inode *ino;
1114         unsigned int mbox;
1115         struct adapter *adap;
1116         void __iomem *addr;
1117         void __iomem *ctrl;
1118
1119         if (count > sizeof(s) - 1 || !count)
1120                 return -EINVAL;
1121         if (copy_from_user(s, buf, count))
1122                 return -EFAULT;
1123         s[count] = '\0';
1124
1125         if (sscanf(s, "%llx %llx %llx %llx %llx %llx %llx %llx%c", &data[0],
1126                    &data[1], &data[2], &data[3], &data[4], &data[5], &data[6],
1127                    &data[7], &c) < 8 || c != '\n')
1128                 return -EINVAL;
1129
1130         ino = file_inode(file);
1131         mbox = (uintptr_t)ino->i_private & 7;
1132         adap = ino->i_private - mbox;
1133         addr = adap->regs + PF_REG(mbox, CIM_PF_MAILBOX_DATA_A);
1134         ctrl = addr + MBOX_LEN;
1135
1136         if (MBOWNER_G(readl(ctrl)) != X_MBOWNER_PL)
1137                 return -EBUSY;
1138
1139         for (i = 0; i < 8; i++)
1140                 writeq(data[i], addr + 8 * i);
1141
1142         writel(MBMSGVALID_F | MBOWNER_V(X_MBOWNER_FW), ctrl);
1143         return count;
1144 }
1145
1146 static const struct file_operations mbox_debugfs_fops = {
1147         .owner   = THIS_MODULE,
1148         .open    = mbox_open,
1149         .read    = seq_read,
1150         .llseek  = seq_lseek,
1151         .release = single_release,
1152         .write   = mbox_write
1153 };
1154
1155 static ssize_t flash_read(struct file *file, char __user *buf, size_t count,
1156                           loff_t *ppos)
1157 {
1158         loff_t pos = *ppos;
1159         loff_t avail = file_inode(file)->i_size;
1160         struct adapter *adap = file->private_data;
1161
1162         if (pos < 0)
1163                 return -EINVAL;
1164         if (pos >= avail)
1165                 return 0;
1166         if (count > avail - pos)
1167                 count = avail - pos;
1168
1169         while (count) {
1170                 size_t len;
1171                 int ret, ofst;
1172                 u8 data[256];
1173
1174                 ofst = pos & 3;
1175                 len = min(count + ofst, sizeof(data));
1176                 ret = t4_read_flash(adap, pos - ofst, (len + 3) / 4,
1177                                     (u32 *)data, 1);
1178                 if (ret)
1179                         return ret;
1180
1181                 len -= ofst;
1182                 if (copy_to_user(buf, data + ofst, len))
1183                         return -EFAULT;
1184
1185                 buf += len;
1186                 pos += len;
1187                 count -= len;
1188         }
1189         count = pos - *ppos;
1190         *ppos = pos;
1191         return count;
1192 }
1193
1194 static const struct file_operations flash_debugfs_fops = {
1195         .owner   = THIS_MODULE,
1196         .open    = mem_open,
1197         .read    = flash_read,
1198 };
1199
1200 static inline void tcamxy2valmask(u64 x, u64 y, u8 *addr, u64 *mask)
1201 {
1202         *mask = x | y;
1203         y = (__force u64)cpu_to_be64(y);
1204         memcpy(addr, (char *)&y + 2, ETH_ALEN);
1205 }
1206
1207 static int mps_tcam_show(struct seq_file *seq, void *v)
1208 {
1209         struct adapter *adap = seq->private;
1210         unsigned int chip_ver = CHELSIO_CHIP_VERSION(adap->params.chip);
1211
1212         if (v == SEQ_START_TOKEN) {
1213                 if (adap->params.arch.mps_rplc_size > 128)
1214                         seq_puts(seq, "Idx  Ethernet address     Mask     "
1215                                  "Vld Ports PF  VF                           "
1216                                  "Replication                                "
1217                                  "    P0 P1 P2 P3  ML\n");
1218                 else
1219                         seq_puts(seq, "Idx  Ethernet address     Mask     "
1220                                  "Vld Ports PF  VF              Replication"
1221                                  "               P0 P1 P2 P3  ML\n");
1222         } else {
1223                 u64 mask;
1224                 u8 addr[ETH_ALEN];
1225                 bool replicate;
1226                 unsigned int idx = (uintptr_t)v - 2;
1227                 u64 tcamy, tcamx, val;
1228                 u32 cls_lo, cls_hi, ctl;
1229                 u32 rplc[8] = {0};
1230
1231                 if (chip_ver > CHELSIO_T5) {
1232                         /* CtlCmdType - 0: Read, 1: Write
1233                          * CtlTcamSel - 0: TCAM0, 1: TCAM1
1234                          * CtlXYBitSel- 0: Y bit, 1: X bit
1235                          */
1236
1237                         /* Read tcamy */
1238                         ctl = CTLCMDTYPE_V(0) | CTLXYBITSEL_V(0);
1239                         if (idx < 256)
1240                                 ctl |= CTLTCAMINDEX_V(idx) | CTLTCAMSEL_V(0);
1241                         else
1242                                 ctl |= CTLTCAMINDEX_V(idx - 256) |
1243                                        CTLTCAMSEL_V(1);
1244                         t4_write_reg(adap, MPS_CLS_TCAM_DATA2_CTL_A, ctl);
1245                         val = t4_read_reg(adap, MPS_CLS_TCAM_DATA1_A);
1246                         tcamy = DMACH_G(val) << 32;
1247                         tcamy |= t4_read_reg(adap, MPS_CLS_TCAM_DATA0_A);
1248
1249                         /* Read tcamx. Change the control param */
1250                         ctl |= CTLXYBITSEL_V(1);
1251                         t4_write_reg(adap, MPS_CLS_TCAM_DATA2_CTL_A, ctl);
1252                         val = t4_read_reg(adap, MPS_CLS_TCAM_DATA1_A);
1253                         tcamx = DMACH_G(val) << 32;
1254                         tcamx |= t4_read_reg(adap, MPS_CLS_TCAM_DATA0_A);
1255                 } else {
1256                         tcamy = t4_read_reg64(adap, MPS_CLS_TCAM_Y_L(idx));
1257                         tcamx = t4_read_reg64(adap, MPS_CLS_TCAM_X_L(idx));
1258                 }
1259
1260                 cls_lo = t4_read_reg(adap, MPS_CLS_SRAM_L(idx));
1261                 cls_hi = t4_read_reg(adap, MPS_CLS_SRAM_H(idx));
1262
1263                 if (tcamx & tcamy) {
1264                         seq_printf(seq, "%3u         -\n", idx);
1265                         goto out;
1266                 }
1267
1268                 rplc[0] = rplc[1] = rplc[2] = rplc[3] = 0;
1269                 if (chip_ver > CHELSIO_T5)
1270                         replicate = (cls_lo & T6_REPLICATE_F);
1271                 else
1272                         replicate = (cls_lo & REPLICATE_F);
1273
1274                 if (replicate) {
1275                         struct fw_ldst_cmd ldst_cmd;
1276                         int ret;
1277                         struct fw_ldst_mps_rplc mps_rplc;
1278                         u32 ldst_addrspc;
1279
1280                         memset(&ldst_cmd, 0, sizeof(ldst_cmd));
1281                         ldst_addrspc =
1282                                 FW_LDST_CMD_ADDRSPACE_V(FW_LDST_ADDRSPC_MPS);
1283                         ldst_cmd.op_to_addrspace =
1284                                 htonl(FW_CMD_OP_V(FW_LDST_CMD) |
1285                                       FW_CMD_REQUEST_F |
1286                                       FW_CMD_READ_F |
1287                                       ldst_addrspc);
1288                         ldst_cmd.cycles_to_len16 = htonl(FW_LEN16(ldst_cmd));
1289                         ldst_cmd.u.mps.rplc.fid_idx =
1290                                 htons(FW_LDST_CMD_FID_V(FW_LDST_MPS_RPLC) |
1291                                       FW_LDST_CMD_IDX_V(idx));
1292                         ret = t4_wr_mbox(adap, adap->mbox, &ldst_cmd,
1293                                          sizeof(ldst_cmd), &ldst_cmd);
1294                         if (ret)
1295                                 dev_warn(adap->pdev_dev, "Can't read MPS "
1296                                          "replication map for idx %d: %d\n",
1297                                          idx, -ret);
1298                         else {
1299                                 mps_rplc = ldst_cmd.u.mps.rplc;
1300                                 rplc[0] = ntohl(mps_rplc.rplc31_0);
1301                                 rplc[1] = ntohl(mps_rplc.rplc63_32);
1302                                 rplc[2] = ntohl(mps_rplc.rplc95_64);
1303                                 rplc[3] = ntohl(mps_rplc.rplc127_96);
1304                                 if (adap->params.arch.mps_rplc_size > 128) {
1305                                         rplc[4] = ntohl(mps_rplc.rplc159_128);
1306                                         rplc[5] = ntohl(mps_rplc.rplc191_160);
1307                                         rplc[6] = ntohl(mps_rplc.rplc223_192);
1308                                         rplc[7] = ntohl(mps_rplc.rplc255_224);
1309                                 }
1310                         }
1311                 }
1312
1313                 tcamxy2valmask(tcamx, tcamy, addr, &mask);
1314                 if (chip_ver > CHELSIO_T5)
1315                         seq_printf(seq, "%3u %02x:%02x:%02x:%02x:%02x:%02x "
1316                                    "%012llx%3c   %#x%4u%4d",
1317                                    idx, addr[0], addr[1], addr[2], addr[3],
1318                                    addr[4], addr[5], (unsigned long long)mask,
1319                                    (cls_lo & T6_SRAM_VLD_F) ? 'Y' : 'N',
1320                                    PORTMAP_G(cls_hi),
1321                                    T6_PF_G(cls_lo),
1322                                    (cls_lo & T6_VF_VALID_F) ?
1323                                    T6_VF_G(cls_lo) : -1);
1324                 else
1325                         seq_printf(seq, "%3u %02x:%02x:%02x:%02x:%02x:%02x "
1326                                    "%012llx%3c   %#x%4u%4d",
1327                                    idx, addr[0], addr[1], addr[2], addr[3],
1328                                    addr[4], addr[5], (unsigned long long)mask,
1329                                    (cls_lo & SRAM_VLD_F) ? 'Y' : 'N',
1330                                    PORTMAP_G(cls_hi),
1331                                    PF_G(cls_lo),
1332                                    (cls_lo & VF_VALID_F) ? VF_G(cls_lo) : -1);
1333
1334                 if (replicate) {
1335                         if (adap->params.arch.mps_rplc_size > 128)
1336                                 seq_printf(seq, " %08x %08x %08x %08x "
1337                                            "%08x %08x %08x %08x",
1338                                            rplc[7], rplc[6], rplc[5], rplc[4],
1339                                            rplc[3], rplc[2], rplc[1], rplc[0]);
1340                         else
1341                                 seq_printf(seq, " %08x %08x %08x %08x",
1342                                            rplc[3], rplc[2], rplc[1], rplc[0]);
1343                 } else {
1344                         if (adap->params.arch.mps_rplc_size > 128)
1345                                 seq_printf(seq, "%72c", ' ');
1346                         else
1347                                 seq_printf(seq, "%36c", ' ');
1348                 }
1349
1350                 if (chip_ver > CHELSIO_T5)
1351                         seq_printf(seq, "%4u%3u%3u%3u %#x\n",
1352                                    T6_SRAM_PRIO0_G(cls_lo),
1353                                    T6_SRAM_PRIO1_G(cls_lo),
1354                                    T6_SRAM_PRIO2_G(cls_lo),
1355                                    T6_SRAM_PRIO3_G(cls_lo),
1356                                    (cls_lo >> T6_MULTILISTEN0_S) & 0xf);
1357                 else
1358                         seq_printf(seq, "%4u%3u%3u%3u %#x\n",
1359                                    SRAM_PRIO0_G(cls_lo), SRAM_PRIO1_G(cls_lo),
1360                                    SRAM_PRIO2_G(cls_lo), SRAM_PRIO3_G(cls_lo),
1361                                    (cls_lo >> MULTILISTEN0_S) & 0xf);
1362         }
1363 out:    return 0;
1364 }
1365
1366 static inline void *mps_tcam_get_idx(struct seq_file *seq, loff_t pos)
1367 {
1368         struct adapter *adap = seq->private;
1369         int max_mac_addr = is_t4(adap->params.chip) ?
1370                                 NUM_MPS_CLS_SRAM_L_INSTANCES :
1371                                 NUM_MPS_T5_CLS_SRAM_L_INSTANCES;
1372         return ((pos <= max_mac_addr) ? (void *)(uintptr_t)(pos + 1) : NULL);
1373 }
1374
1375 static void *mps_tcam_start(struct seq_file *seq, loff_t *pos)
1376 {
1377         return *pos ? mps_tcam_get_idx(seq, *pos) : SEQ_START_TOKEN;
1378 }
1379
1380 static void *mps_tcam_next(struct seq_file *seq, void *v, loff_t *pos)
1381 {
1382         ++*pos;
1383         return mps_tcam_get_idx(seq, *pos);
1384 }
1385
1386 static void mps_tcam_stop(struct seq_file *seq, void *v)
1387 {
1388 }
1389
1390 static const struct seq_operations mps_tcam_seq_ops = {
1391         .start = mps_tcam_start,
1392         .next  = mps_tcam_next,
1393         .stop  = mps_tcam_stop,
1394         .show  = mps_tcam_show
1395 };
1396
1397 static int mps_tcam_open(struct inode *inode, struct file *file)
1398 {
1399         int res = seq_open(file, &mps_tcam_seq_ops);
1400
1401         if (!res) {
1402                 struct seq_file *seq = file->private_data;
1403
1404                 seq->private = inode->i_private;
1405         }
1406         return res;
1407 }
1408
1409 static const struct file_operations mps_tcam_debugfs_fops = {
1410         .owner   = THIS_MODULE,
1411         .open    = mps_tcam_open,
1412         .read    = seq_read,
1413         .llseek  = seq_lseek,
1414         .release = seq_release,
1415 };
1416
1417 /* Display various sensor information.
1418  */
1419 static int sensors_show(struct seq_file *seq, void *v)
1420 {
1421         struct adapter *adap = seq->private;
1422         u32 param[7], val[7];
1423         int ret;
1424
1425         /* Note that if the sensors haven't been initialized and turned on
1426          * we'll get values of 0, so treat those as "<unknown>" ...
1427          */
1428         param[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
1429                     FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_DIAG) |
1430                     FW_PARAMS_PARAM_Y_V(FW_PARAM_DEV_DIAG_TMP));
1431         param[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
1432                     FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_DIAG) |
1433                     FW_PARAMS_PARAM_Y_V(FW_PARAM_DEV_DIAG_VDD));
1434         ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 2,
1435                               param, val);
1436
1437         if (ret < 0 || val[0] == 0)
1438                 seq_puts(seq, "Temperature: <unknown>\n");
1439         else
1440                 seq_printf(seq, "Temperature: %dC\n", val[0]);
1441
1442         if (ret < 0 || val[1] == 0)
1443                 seq_puts(seq, "Core VDD:    <unknown>\n");
1444         else
1445                 seq_printf(seq, "Core VDD:    %dmV\n", val[1]);
1446
1447         return 0;
1448 }
1449
1450 DEFINE_SIMPLE_DEBUGFS_FILE(sensors);
1451
1452 #if IS_ENABLED(CONFIG_IPV6)
1453 static int clip_tbl_open(struct inode *inode, struct file *file)
1454 {
1455         return single_open(file, clip_tbl_show, inode->i_private);
1456 }
1457
1458 static const struct file_operations clip_tbl_debugfs_fops = {
1459         .owner   = THIS_MODULE,
1460         .open    = clip_tbl_open,
1461         .read    = seq_read,
1462         .llseek  = seq_lseek,
1463         .release = single_release
1464 };
1465 #endif
1466
1467 /*RSS Table.
1468  */
1469
1470 static int rss_show(struct seq_file *seq, void *v, int idx)
1471 {
1472         u16 *entry = v;
1473
1474         seq_printf(seq, "%4d:  %4u  %4u  %4u  %4u  %4u  %4u  %4u  %4u\n",
1475                    idx * 8, entry[0], entry[1], entry[2], entry[3], entry[4],
1476                    entry[5], entry[6], entry[7]);
1477         return 0;
1478 }
1479
1480 static int rss_open(struct inode *inode, struct file *file)
1481 {
1482         int ret;
1483         struct seq_tab *p;
1484         struct adapter *adap = inode->i_private;
1485
1486         p = seq_open_tab(file, RSS_NENTRIES / 8, 8 * sizeof(u16), 0, rss_show);
1487         if (!p)
1488                 return -ENOMEM;
1489
1490         ret = t4_read_rss(adap, (u16 *)p->data);
1491         if (ret)
1492                 seq_release_private(inode, file);
1493
1494         return ret;
1495 }
1496
1497 static const struct file_operations rss_debugfs_fops = {
1498         .owner   = THIS_MODULE,
1499         .open    = rss_open,
1500         .read    = seq_read,
1501         .llseek  = seq_lseek,
1502         .release = seq_release_private
1503 };
1504
1505 /* RSS Configuration.
1506  */
1507
1508 /* Small utility function to return the strings "yes" or "no" if the supplied
1509  * argument is non-zero.
1510  */
1511 static const char *yesno(int x)
1512 {
1513         static const char *yes = "yes";
1514         static const char *no = "no";
1515
1516         return x ? yes : no;
1517 }
1518
1519 static int rss_config_show(struct seq_file *seq, void *v)
1520 {
1521         struct adapter *adapter = seq->private;
1522         static const char * const keymode[] = {
1523                 "global",
1524                 "global and per-VF scramble",
1525                 "per-PF and per-VF scramble",
1526                 "per-VF and per-VF scramble",
1527         };
1528         u32 rssconf;
1529
1530         rssconf = t4_read_reg(adapter, TP_RSS_CONFIG_A);
1531         seq_printf(seq, "TP_RSS_CONFIG: %#x\n", rssconf);
1532         seq_printf(seq, "  Tnl4TupEnIpv6: %3s\n", yesno(rssconf &
1533                                                         TNL4TUPENIPV6_F));
1534         seq_printf(seq, "  Tnl2TupEnIpv6: %3s\n", yesno(rssconf &
1535                                                         TNL2TUPENIPV6_F));
1536         seq_printf(seq, "  Tnl4TupEnIpv4: %3s\n", yesno(rssconf &
1537                                                         TNL4TUPENIPV4_F));
1538         seq_printf(seq, "  Tnl2TupEnIpv4: %3s\n", yesno(rssconf &
1539                                                         TNL2TUPENIPV4_F));
1540         seq_printf(seq, "  TnlTcpSel:     %3s\n", yesno(rssconf & TNLTCPSEL_F));
1541         seq_printf(seq, "  TnlIp6Sel:     %3s\n", yesno(rssconf & TNLIP6SEL_F));
1542         seq_printf(seq, "  TnlVrtSel:     %3s\n", yesno(rssconf & TNLVRTSEL_F));
1543         seq_printf(seq, "  TnlMapEn:      %3s\n", yesno(rssconf & TNLMAPEN_F));
1544         seq_printf(seq, "  OfdHashSave:   %3s\n", yesno(rssconf &
1545                                                         OFDHASHSAVE_F));
1546         seq_printf(seq, "  OfdVrtSel:     %3s\n", yesno(rssconf & OFDVRTSEL_F));
1547         seq_printf(seq, "  OfdMapEn:      %3s\n", yesno(rssconf & OFDMAPEN_F));
1548         seq_printf(seq, "  OfdLkpEn:      %3s\n", yesno(rssconf & OFDLKPEN_F));
1549         seq_printf(seq, "  Syn4TupEnIpv6: %3s\n", yesno(rssconf &
1550                                                         SYN4TUPENIPV6_F));
1551         seq_printf(seq, "  Syn2TupEnIpv6: %3s\n", yesno(rssconf &
1552                                                         SYN2TUPENIPV6_F));
1553         seq_printf(seq, "  Syn4TupEnIpv4: %3s\n", yesno(rssconf &
1554                                                         SYN4TUPENIPV4_F));
1555         seq_printf(seq, "  Syn2TupEnIpv4: %3s\n", yesno(rssconf &
1556                                                         SYN2TUPENIPV4_F));
1557         seq_printf(seq, "  Syn4TupEnIpv6: %3s\n", yesno(rssconf &
1558                                                         SYN4TUPENIPV6_F));
1559         seq_printf(seq, "  SynIp6Sel:     %3s\n", yesno(rssconf & SYNIP6SEL_F));
1560         seq_printf(seq, "  SynVrt6Sel:    %3s\n", yesno(rssconf & SYNVRTSEL_F));
1561         seq_printf(seq, "  SynMapEn:      %3s\n", yesno(rssconf & SYNMAPEN_F));
1562         seq_printf(seq, "  SynLkpEn:      %3s\n", yesno(rssconf & SYNLKPEN_F));
1563         seq_printf(seq, "  ChnEn:         %3s\n", yesno(rssconf &
1564                                                         CHANNELENABLE_F));
1565         seq_printf(seq, "  PrtEn:         %3s\n", yesno(rssconf &
1566                                                         PORTENABLE_F));
1567         seq_printf(seq, "  TnlAllLkp:     %3s\n", yesno(rssconf &
1568                                                         TNLALLLOOKUP_F));
1569         seq_printf(seq, "  VrtEn:         %3s\n", yesno(rssconf &
1570                                                         VIRTENABLE_F));
1571         seq_printf(seq, "  CngEn:         %3s\n", yesno(rssconf &
1572                                                         CONGESTIONENABLE_F));
1573         seq_printf(seq, "  HashToeplitz:  %3s\n", yesno(rssconf &
1574                                                         HASHTOEPLITZ_F));
1575         seq_printf(seq, "  Udp4En:        %3s\n", yesno(rssconf & UDPENABLE_F));
1576         seq_printf(seq, "  Disable:       %3s\n", yesno(rssconf & DISABLE_F));
1577
1578         seq_puts(seq, "\n");
1579
1580         rssconf = t4_read_reg(adapter, TP_RSS_CONFIG_TNL_A);
1581         seq_printf(seq, "TP_RSS_CONFIG_TNL: %#x\n", rssconf);
1582         seq_printf(seq, "  MaskSize:      %3d\n", MASKSIZE_G(rssconf));
1583         seq_printf(seq, "  MaskFilter:    %3d\n", MASKFILTER_G(rssconf));
1584         if (CHELSIO_CHIP_VERSION(adapter->params.chip) > CHELSIO_T5) {
1585                 seq_printf(seq, "  HashAll:     %3s\n",
1586                            yesno(rssconf & HASHALL_F));
1587                 seq_printf(seq, "  HashEth:     %3s\n",
1588                            yesno(rssconf & HASHETH_F));
1589         }
1590         seq_printf(seq, "  UseWireCh:     %3s\n", yesno(rssconf & USEWIRECH_F));
1591
1592         seq_puts(seq, "\n");
1593
1594         rssconf = t4_read_reg(adapter, TP_RSS_CONFIG_OFD_A);
1595         seq_printf(seq, "TP_RSS_CONFIG_OFD: %#x\n", rssconf);
1596         seq_printf(seq, "  MaskSize:      %3d\n", MASKSIZE_G(rssconf));
1597         seq_printf(seq, "  RRCplMapEn:    %3s\n", yesno(rssconf &
1598                                                         RRCPLMAPEN_F));
1599         seq_printf(seq, "  RRCplQueWidth: %3d\n", RRCPLQUEWIDTH_G(rssconf));
1600
1601         seq_puts(seq, "\n");
1602
1603         rssconf = t4_read_reg(adapter, TP_RSS_CONFIG_SYN_A);
1604         seq_printf(seq, "TP_RSS_CONFIG_SYN: %#x\n", rssconf);
1605         seq_printf(seq, "  MaskSize:      %3d\n", MASKSIZE_G(rssconf));
1606         seq_printf(seq, "  UseWireCh:     %3s\n", yesno(rssconf & USEWIRECH_F));
1607
1608         seq_puts(seq, "\n");
1609
1610         rssconf = t4_read_reg(adapter, TP_RSS_CONFIG_VRT_A);
1611         seq_printf(seq, "TP_RSS_CONFIG_VRT: %#x\n", rssconf);
1612         if (CHELSIO_CHIP_VERSION(adapter->params.chip) > CHELSIO_T5) {
1613                 seq_printf(seq, "  KeyWrAddrX:     %3d\n",
1614                            KEYWRADDRX_G(rssconf));
1615                 seq_printf(seq, "  KeyExtend:      %3s\n",
1616                            yesno(rssconf & KEYEXTEND_F));
1617         }
1618         seq_printf(seq, "  VfRdRg:        %3s\n", yesno(rssconf & VFRDRG_F));
1619         seq_printf(seq, "  VfRdEn:        %3s\n", yesno(rssconf & VFRDEN_F));
1620         seq_printf(seq, "  VfPerrEn:      %3s\n", yesno(rssconf & VFPERREN_F));
1621         seq_printf(seq, "  KeyPerrEn:     %3s\n", yesno(rssconf & KEYPERREN_F));
1622         seq_printf(seq, "  DisVfVlan:     %3s\n", yesno(rssconf &
1623                                                         DISABLEVLAN_F));
1624         seq_printf(seq, "  EnUpSwt:       %3s\n", yesno(rssconf & ENABLEUP0_F));
1625         seq_printf(seq, "  HashDelay:     %3d\n", HASHDELAY_G(rssconf));
1626         if (CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5)
1627                 seq_printf(seq, "  VfWrAddr:      %3d\n", VFWRADDR_G(rssconf));
1628         else
1629                 seq_printf(seq, "  VfWrAddr:      %3d\n",
1630                            T6_VFWRADDR_G(rssconf));
1631         seq_printf(seq, "  KeyMode:       %s\n", keymode[KEYMODE_G(rssconf)]);
1632         seq_printf(seq, "  VfWrEn:        %3s\n", yesno(rssconf & VFWREN_F));
1633         seq_printf(seq, "  KeyWrEn:       %3s\n", yesno(rssconf & KEYWREN_F));
1634         seq_printf(seq, "  KeyWrAddr:     %3d\n", KEYWRADDR_G(rssconf));
1635
1636         seq_puts(seq, "\n");
1637
1638         rssconf = t4_read_reg(adapter, TP_RSS_CONFIG_CNG_A);
1639         seq_printf(seq, "TP_RSS_CONFIG_CNG: %#x\n", rssconf);
1640         seq_printf(seq, "  ChnCount3:     %3s\n", yesno(rssconf & CHNCOUNT3_F));
1641         seq_printf(seq, "  ChnCount2:     %3s\n", yesno(rssconf & CHNCOUNT2_F));
1642         seq_printf(seq, "  ChnCount1:     %3s\n", yesno(rssconf & CHNCOUNT1_F));
1643         seq_printf(seq, "  ChnCount0:     %3s\n", yesno(rssconf & CHNCOUNT0_F));
1644         seq_printf(seq, "  ChnUndFlow3:   %3s\n", yesno(rssconf &
1645                                                         CHNUNDFLOW3_F));
1646         seq_printf(seq, "  ChnUndFlow2:   %3s\n", yesno(rssconf &
1647                                                         CHNUNDFLOW2_F));
1648         seq_printf(seq, "  ChnUndFlow1:   %3s\n", yesno(rssconf &
1649                                                         CHNUNDFLOW1_F));
1650         seq_printf(seq, "  ChnUndFlow0:   %3s\n", yesno(rssconf &
1651                                                         CHNUNDFLOW0_F));
1652         seq_printf(seq, "  RstChn3:       %3s\n", yesno(rssconf & RSTCHN3_F));
1653         seq_printf(seq, "  RstChn2:       %3s\n", yesno(rssconf & RSTCHN2_F));
1654         seq_printf(seq, "  RstChn1:       %3s\n", yesno(rssconf & RSTCHN1_F));
1655         seq_printf(seq, "  RstChn0:       %3s\n", yesno(rssconf & RSTCHN0_F));
1656         seq_printf(seq, "  UpdVld:        %3s\n", yesno(rssconf & UPDVLD_F));
1657         seq_printf(seq, "  Xoff:          %3s\n", yesno(rssconf & XOFF_F));
1658         seq_printf(seq, "  UpdChn3:       %3s\n", yesno(rssconf & UPDCHN3_F));
1659         seq_printf(seq, "  UpdChn2:       %3s\n", yesno(rssconf & UPDCHN2_F));
1660         seq_printf(seq, "  UpdChn1:       %3s\n", yesno(rssconf & UPDCHN1_F));
1661         seq_printf(seq, "  UpdChn0:       %3s\n", yesno(rssconf & UPDCHN0_F));
1662         seq_printf(seq, "  Queue:         %3d\n", QUEUE_G(rssconf));
1663
1664         return 0;
1665 }
1666
1667 DEFINE_SIMPLE_DEBUGFS_FILE(rss_config);
1668
1669 /* RSS Secret Key.
1670  */
1671
1672 static int rss_key_show(struct seq_file *seq, void *v)
1673 {
1674         u32 key[10];
1675
1676         t4_read_rss_key(seq->private, key);
1677         seq_printf(seq, "%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x\n",
1678                    key[9], key[8], key[7], key[6], key[5], key[4], key[3],
1679                    key[2], key[1], key[0]);
1680         return 0;
1681 }
1682
1683 static int rss_key_open(struct inode *inode, struct file *file)
1684 {
1685         return single_open(file, rss_key_show, inode->i_private);
1686 }
1687
1688 static ssize_t rss_key_write(struct file *file, const char __user *buf,
1689                              size_t count, loff_t *pos)
1690 {
1691         int i, j;
1692         u32 key[10];
1693         char s[100], *p;
1694         struct adapter *adap = file_inode(file)->i_private;
1695
1696         if (count > sizeof(s) - 1)
1697                 return -EINVAL;
1698         if (copy_from_user(s, buf, count))
1699                 return -EFAULT;
1700         for (i = count; i > 0 && isspace(s[i - 1]); i--)
1701                 ;
1702         s[i] = '\0';
1703
1704         for (p = s, i = 9; i >= 0; i--) {
1705                 key[i] = 0;
1706                 for (j = 0; j < 8; j++, p++) {
1707                         if (!isxdigit(*p))
1708                                 return -EINVAL;
1709                         key[i] = (key[i] << 4) | hex2val(*p);
1710                 }
1711         }
1712
1713         t4_write_rss_key(adap, key, -1);
1714         return count;
1715 }
1716
1717 static const struct file_operations rss_key_debugfs_fops = {
1718         .owner   = THIS_MODULE,
1719         .open    = rss_key_open,
1720         .read    = seq_read,
1721         .llseek  = seq_lseek,
1722         .release = single_release,
1723         .write   = rss_key_write
1724 };
1725
1726 /* PF RSS Configuration.
1727  */
1728
1729 struct rss_pf_conf {
1730         u32 rss_pf_map;
1731         u32 rss_pf_mask;
1732         u32 rss_pf_config;
1733 };
1734
1735 static int rss_pf_config_show(struct seq_file *seq, void *v, int idx)
1736 {
1737         struct rss_pf_conf *pfconf;
1738
1739         if (v == SEQ_START_TOKEN) {
1740                 /* use the 0th entry to dump the PF Map Index Size */
1741                 pfconf = seq->private + offsetof(struct seq_tab, data);
1742                 seq_printf(seq, "PF Map Index Size = %d\n\n",
1743                            LKPIDXSIZE_G(pfconf->rss_pf_map));
1744
1745                 seq_puts(seq, "     RSS              PF   VF    Hash Tuple Enable         Default\n");
1746                 seq_puts(seq, "     Enable       IPF Mask Mask  IPv6      IPv4      UDP   Queue\n");
1747                 seq_puts(seq, " PF  Map Chn Prt  Map Size Size  Four Two  Four Two  Four  Ch1  Ch0\n");
1748         } else {
1749                 #define G_PFnLKPIDX(map, n) \
1750                         (((map) >> PF1LKPIDX_S*(n)) & PF0LKPIDX_M)
1751                 #define G_PFnMSKSIZE(mask, n) \
1752                         (((mask) >> PF1MSKSIZE_S*(n)) & PF1MSKSIZE_M)
1753
1754                 pfconf = v;
1755                 seq_printf(seq, "%3d  %3s %3s %3s  %3d  %3d  %3d   %3s %3s   %3s %3s   %3s  %3d  %3d\n",
1756                            idx,
1757                            yesno(pfconf->rss_pf_config & MAPENABLE_F),
1758                            yesno(pfconf->rss_pf_config & CHNENABLE_F),
1759                            yesno(pfconf->rss_pf_config & PRTENABLE_F),
1760                            G_PFnLKPIDX(pfconf->rss_pf_map, idx),
1761                            G_PFnMSKSIZE(pfconf->rss_pf_mask, idx),
1762                            IVFWIDTH_G(pfconf->rss_pf_config),
1763                            yesno(pfconf->rss_pf_config & IP6FOURTUPEN_F),
1764                            yesno(pfconf->rss_pf_config & IP6TWOTUPEN_F),
1765                            yesno(pfconf->rss_pf_config & IP4FOURTUPEN_F),
1766                            yesno(pfconf->rss_pf_config & IP4TWOTUPEN_F),
1767                            yesno(pfconf->rss_pf_config & UDPFOURTUPEN_F),
1768                            CH1DEFAULTQUEUE_G(pfconf->rss_pf_config),
1769                            CH0DEFAULTQUEUE_G(pfconf->rss_pf_config));
1770
1771                 #undef G_PFnLKPIDX
1772                 #undef G_PFnMSKSIZE
1773         }
1774         return 0;
1775 }
1776
1777 static int rss_pf_config_open(struct inode *inode, struct file *file)
1778 {
1779         struct adapter *adapter = inode->i_private;
1780         struct seq_tab *p;
1781         u32 rss_pf_map, rss_pf_mask;
1782         struct rss_pf_conf *pfconf;
1783         int pf;
1784
1785         p = seq_open_tab(file, 8, sizeof(*pfconf), 1, rss_pf_config_show);
1786         if (!p)
1787                 return -ENOMEM;
1788
1789         pfconf = (struct rss_pf_conf *)p->data;
1790         rss_pf_map = t4_read_rss_pf_map(adapter);
1791         rss_pf_mask = t4_read_rss_pf_mask(adapter);
1792         for (pf = 0; pf < 8; pf++) {
1793                 pfconf[pf].rss_pf_map = rss_pf_map;
1794                 pfconf[pf].rss_pf_mask = rss_pf_mask;
1795                 t4_read_rss_pf_config(adapter, pf, &pfconf[pf].rss_pf_config);
1796         }
1797         return 0;
1798 }
1799
1800 static const struct file_operations rss_pf_config_debugfs_fops = {
1801         .owner   = THIS_MODULE,
1802         .open    = rss_pf_config_open,
1803         .read    = seq_read,
1804         .llseek  = seq_lseek,
1805         .release = seq_release_private
1806 };
1807
1808 /* VF RSS Configuration.
1809  */
1810
1811 struct rss_vf_conf {
1812         u32 rss_vf_vfl;
1813         u32 rss_vf_vfh;
1814 };
1815
1816 static int rss_vf_config_show(struct seq_file *seq, void *v, int idx)
1817 {
1818         if (v == SEQ_START_TOKEN) {
1819                 seq_puts(seq, "     RSS                     Hash Tuple Enable\n");
1820                 seq_puts(seq, "     Enable   IVF  Dis  Enb  IPv6      IPv4      UDP    Def  Secret Key\n");
1821                 seq_puts(seq, " VF  Chn Prt  Map  VLAN  uP  Four Two  Four Two  Four   Que  Idx       Hash\n");
1822         } else {
1823                 struct rss_vf_conf *vfconf = v;
1824
1825                 seq_printf(seq, "%3d  %3s %3s  %3d   %3s %3s   %3s %3s   %3s  %3s   %3s  %4d  %3d %#10x\n",
1826                            idx,
1827                            yesno(vfconf->rss_vf_vfh & VFCHNEN_F),
1828                            yesno(vfconf->rss_vf_vfh & VFPRTEN_F),
1829                            VFLKPIDX_G(vfconf->rss_vf_vfh),
1830                            yesno(vfconf->rss_vf_vfh & VFVLNEX_F),
1831                            yesno(vfconf->rss_vf_vfh & VFUPEN_F),
1832                            yesno(vfconf->rss_vf_vfh & VFIP4FOURTUPEN_F),
1833                            yesno(vfconf->rss_vf_vfh & VFIP6TWOTUPEN_F),
1834                            yesno(vfconf->rss_vf_vfh & VFIP4FOURTUPEN_F),
1835                            yesno(vfconf->rss_vf_vfh & VFIP4TWOTUPEN_F),
1836                            yesno(vfconf->rss_vf_vfh & ENABLEUDPHASH_F),
1837                            DEFAULTQUEUE_G(vfconf->rss_vf_vfh),
1838                            KEYINDEX_G(vfconf->rss_vf_vfh),
1839                            vfconf->rss_vf_vfl);
1840         }
1841         return 0;
1842 }
1843
1844 static int rss_vf_config_open(struct inode *inode, struct file *file)
1845 {
1846         struct adapter *adapter = inode->i_private;
1847         struct seq_tab *p;
1848         struct rss_vf_conf *vfconf;
1849         int vf, vfcount = adapter->params.arch.vfcount;
1850
1851         p = seq_open_tab(file, vfcount, sizeof(*vfconf), 1, rss_vf_config_show);
1852         if (!p)
1853                 return -ENOMEM;
1854
1855         vfconf = (struct rss_vf_conf *)p->data;
1856         for (vf = 0; vf < vfcount; vf++) {
1857                 t4_read_rss_vf_config(adapter, vf, &vfconf[vf].rss_vf_vfl,
1858                                       &vfconf[vf].rss_vf_vfh);
1859         }
1860         return 0;
1861 }
1862
1863 static const struct file_operations rss_vf_config_debugfs_fops = {
1864         .owner   = THIS_MODULE,
1865         .open    = rss_vf_config_open,
1866         .read    = seq_read,
1867         .llseek  = seq_lseek,
1868         .release = seq_release_private
1869 };
1870
1871 /**
1872  * ethqset2pinfo - return port_info of an Ethernet Queue Set
1873  * @adap: the adapter
1874  * @qset: Ethernet Queue Set
1875  */
1876 static inline struct port_info *ethqset2pinfo(struct adapter *adap, int qset)
1877 {
1878         int pidx;
1879
1880         for_each_port(adap, pidx) {
1881                 struct port_info *pi = adap2pinfo(adap, pidx);
1882
1883                 if (qset >= pi->first_qset &&
1884                     qset < pi->first_qset + pi->nqsets)
1885                         return pi;
1886         }
1887
1888         /* should never happen! */
1889         BUG_ON(1);
1890         return NULL;
1891 }
1892
1893 static int sge_qinfo_show(struct seq_file *seq, void *v)
1894 {
1895         struct adapter *adap = seq->private;
1896         int eth_entries = DIV_ROUND_UP(adap->sge.ethqsets, 4);
1897         int toe_entries = DIV_ROUND_UP(adap->sge.ofldqsets, 4);
1898         int rdma_entries = DIV_ROUND_UP(adap->sge.rdmaqs, 4);
1899         int ciq_entries = DIV_ROUND_UP(adap->sge.rdmaciqs, 4);
1900         int ctrl_entries = DIV_ROUND_UP(MAX_CTRL_QUEUES, 4);
1901         int i, r = (uintptr_t)v - 1;
1902         int toe_idx = r - eth_entries;
1903         int rdma_idx = toe_idx - toe_entries;
1904         int ciq_idx = rdma_idx - rdma_entries;
1905         int ctrl_idx =  ciq_idx - ciq_entries;
1906         int fq_idx =  ctrl_idx - ctrl_entries;
1907
1908         if (r)
1909                 seq_putc(seq, '\n');
1910
1911 #define S3(fmt_spec, s, v) \
1912 do { \
1913         seq_printf(seq, "%-12s", s); \
1914         for (i = 0; i < n; ++i) \
1915                 seq_printf(seq, " %16" fmt_spec, v); \
1916                 seq_putc(seq, '\n'); \
1917 } while (0)
1918 #define S(s, v) S3("s", s, v)
1919 #define T(s, v) S3("u", s, tx[i].v)
1920 #define R(s, v) S3("u", s, rx[i].v)
1921
1922         if (r < eth_entries) {
1923                 int base_qset = r * 4;
1924                 const struct sge_eth_rxq *rx = &adap->sge.ethrxq[base_qset];
1925                 const struct sge_eth_txq *tx = &adap->sge.ethtxq[base_qset];
1926                 int n = min(4, adap->sge.ethqsets - 4 * r);
1927
1928                 S("QType:", "Ethernet");
1929                 S("Interface:",
1930                   rx[i].rspq.netdev ? rx[i].rspq.netdev->name : "N/A");
1931                 T("TxQ ID:", q.cntxt_id);
1932                 T("TxQ size:", q.size);
1933                 T("TxQ inuse:", q.in_use);
1934                 T("TxQ CIDX:", q.cidx);
1935                 T("TxQ PIDX:", q.pidx);
1936 #ifdef CONFIG_CHELSIO_T4_DCB
1937                 T("DCB Prio:", dcb_prio);
1938                 S3("u", "DCB PGID:",
1939                    (ethqset2pinfo(adap, base_qset + i)->dcb.pgid >>
1940                     4*(7-tx[i].dcb_prio)) & 0xf);
1941                 S3("u", "DCB PFC:",
1942                    (ethqset2pinfo(adap, base_qset + i)->dcb.pfcen >>
1943                     1*(7-tx[i].dcb_prio)) & 0x1);
1944 #endif
1945                 R("RspQ ID:", rspq.abs_id);
1946                 R("RspQ size:", rspq.size);
1947                 R("RspQE size:", rspq.iqe_len);
1948                 R("RspQ CIDX:", rspq.cidx);
1949                 R("RspQ Gen:", rspq.gen);
1950                 S3("u", "Intr delay:", qtimer_val(adap, &rx[i].rspq));
1951                 S3("u", "Intr pktcnt:",
1952                    adap->sge.counter_val[rx[i].rspq.pktcnt_idx]);
1953                 R("FL ID:", fl.cntxt_id);
1954                 R("FL size:", fl.size - 8);
1955                 R("FL pend:", fl.pend_cred);
1956                 R("FL avail:", fl.avail);
1957                 R("FL PIDX:", fl.pidx);
1958                 R("FL CIDX:", fl.cidx);
1959         } else if (toe_idx < toe_entries) {
1960                 const struct sge_ofld_rxq *rx = &adap->sge.ofldrxq[toe_idx * 4];
1961                 const struct sge_ofld_txq *tx = &adap->sge.ofldtxq[toe_idx * 4];
1962                 int n = min(4, adap->sge.ofldqsets - 4 * toe_idx);
1963
1964                 S("QType:", "TOE");
1965                 T("TxQ ID:", q.cntxt_id);
1966                 T("TxQ size:", q.size);
1967                 T("TxQ inuse:", q.in_use);
1968                 T("TxQ CIDX:", q.cidx);
1969                 T("TxQ PIDX:", q.pidx);
1970                 R("RspQ ID:", rspq.abs_id);
1971                 R("RspQ size:", rspq.size);
1972                 R("RspQE size:", rspq.iqe_len);
1973                 R("RspQ CIDX:", rspq.cidx);
1974                 R("RspQ Gen:", rspq.gen);
1975                 S3("u", "Intr delay:", qtimer_val(adap, &rx[i].rspq));
1976                 S3("u", "Intr pktcnt:",
1977                    adap->sge.counter_val[rx[i].rspq.pktcnt_idx]);
1978                 R("FL ID:", fl.cntxt_id);
1979                 R("FL size:", fl.size - 8);
1980                 R("FL pend:", fl.pend_cred);
1981                 R("FL avail:", fl.avail);
1982                 R("FL PIDX:", fl.pidx);
1983                 R("FL CIDX:", fl.cidx);
1984         } else if (rdma_idx < rdma_entries) {
1985                 const struct sge_ofld_rxq *rx =
1986                                 &adap->sge.rdmarxq[rdma_idx * 4];
1987                 int n = min(4, adap->sge.rdmaqs - 4 * rdma_idx);
1988
1989                 S("QType:", "RDMA-CPL");
1990                 S("Interface:",
1991                   rx[i].rspq.netdev ? rx[i].rspq.netdev->name : "N/A");
1992                 R("RspQ ID:", rspq.abs_id);
1993                 R("RspQ size:", rspq.size);
1994                 R("RspQE size:", rspq.iqe_len);
1995                 R("RspQ CIDX:", rspq.cidx);
1996                 R("RspQ Gen:", rspq.gen);
1997                 S3("u", "Intr delay:", qtimer_val(adap, &rx[i].rspq));
1998                 S3("u", "Intr pktcnt:",
1999                    adap->sge.counter_val[rx[i].rspq.pktcnt_idx]);
2000                 R("FL ID:", fl.cntxt_id);
2001                 R("FL size:", fl.size - 8);
2002                 R("FL pend:", fl.pend_cred);
2003                 R("FL avail:", fl.avail);
2004                 R("FL PIDX:", fl.pidx);
2005                 R("FL CIDX:", fl.cidx);
2006         } else if (ciq_idx < ciq_entries) {
2007                 const struct sge_ofld_rxq *rx = &adap->sge.rdmaciq[ciq_idx * 4];
2008                 int n = min(4, adap->sge.rdmaciqs - 4 * ciq_idx);
2009
2010                 S("QType:", "RDMA-CIQ");
2011                 S("Interface:",
2012                   rx[i].rspq.netdev ? rx[i].rspq.netdev->name : "N/A");
2013                 R("RspQ ID:", rspq.abs_id);
2014                 R("RspQ size:", rspq.size);
2015                 R("RspQE size:", rspq.iqe_len);
2016                 R("RspQ CIDX:", rspq.cidx);
2017                 R("RspQ Gen:", rspq.gen);
2018                 S3("u", "Intr delay:", qtimer_val(adap, &rx[i].rspq));
2019                 S3("u", "Intr pktcnt:",
2020                    adap->sge.counter_val[rx[i].rspq.pktcnt_idx]);
2021         } else if (ctrl_idx < ctrl_entries) {
2022                 const struct sge_ctrl_txq *tx = &adap->sge.ctrlq[ctrl_idx * 4];
2023                 int n = min(4, adap->params.nports - 4 * ctrl_idx);
2024
2025                 S("QType:", "Control");
2026                 T("TxQ ID:", q.cntxt_id);
2027                 T("TxQ size:", q.size);
2028                 T("TxQ inuse:", q.in_use);
2029                 T("TxQ CIDX:", q.cidx);
2030                 T("TxQ PIDX:", q.pidx);
2031         } else if (fq_idx == 0) {
2032                 const struct sge_rspq *evtq = &adap->sge.fw_evtq;
2033
2034                 seq_printf(seq, "%-12s %16s\n", "QType:", "FW event queue");
2035                 seq_printf(seq, "%-12s %16u\n", "RspQ ID:", evtq->abs_id);
2036                 seq_printf(seq, "%-12s %16u\n", "RspQ size:", evtq->size);
2037                 seq_printf(seq, "%-12s %16u\n", "RspQE size:", evtq->iqe_len);
2038                 seq_printf(seq, "%-12s %16u\n", "RspQ CIDX:", evtq->cidx);
2039                 seq_printf(seq, "%-12s %16u\n", "RspQ Gen:", evtq->gen);
2040                 seq_printf(seq, "%-12s %16u\n", "Intr delay:",
2041                            qtimer_val(adap, evtq));
2042                 seq_printf(seq, "%-12s %16u\n", "Intr pktcnt:",
2043                            adap->sge.counter_val[evtq->pktcnt_idx]);
2044         }
2045 #undef R
2046 #undef T
2047 #undef S
2048 #undef S3
2049 return 0;
2050 }
2051
2052 static int sge_queue_entries(const struct adapter *adap)
2053 {
2054         return DIV_ROUND_UP(adap->sge.ethqsets, 4) +
2055                DIV_ROUND_UP(adap->sge.ofldqsets, 4) +
2056                DIV_ROUND_UP(adap->sge.rdmaqs, 4) +
2057                DIV_ROUND_UP(adap->sge.rdmaciqs, 4) +
2058                DIV_ROUND_UP(MAX_CTRL_QUEUES, 4) + 1;
2059 }
2060
2061 static void *sge_queue_start(struct seq_file *seq, loff_t *pos)
2062 {
2063         int entries = sge_queue_entries(seq->private);
2064
2065         return *pos < entries ? (void *)((uintptr_t)*pos + 1) : NULL;
2066 }
2067
2068 static void sge_queue_stop(struct seq_file *seq, void *v)
2069 {
2070 }
2071
2072 static void *sge_queue_next(struct seq_file *seq, void *v, loff_t *pos)
2073 {
2074         int entries = sge_queue_entries(seq->private);
2075
2076         ++*pos;
2077         return *pos < entries ? (void *)((uintptr_t)*pos + 1) : NULL;
2078 }
2079
2080 static const struct seq_operations sge_qinfo_seq_ops = {
2081         .start = sge_queue_start,
2082         .next  = sge_queue_next,
2083         .stop  = sge_queue_stop,
2084         .show  = sge_qinfo_show
2085 };
2086
2087 static int sge_qinfo_open(struct inode *inode, struct file *file)
2088 {
2089         int res = seq_open(file, &sge_qinfo_seq_ops);
2090
2091         if (!res) {
2092                 struct seq_file *seq = file->private_data;
2093
2094                 seq->private = inode->i_private;
2095         }
2096         return res;
2097 }
2098
2099 static const struct file_operations sge_qinfo_debugfs_fops = {
2100         .owner   = THIS_MODULE,
2101         .open    = sge_qinfo_open,
2102         .read    = seq_read,
2103         .llseek  = seq_lseek,
2104         .release = seq_release,
2105 };
2106
2107 int mem_open(struct inode *inode, struct file *file)
2108 {
2109         unsigned int mem;
2110         struct adapter *adap;
2111
2112         file->private_data = inode->i_private;
2113
2114         mem = (uintptr_t)file->private_data & 0x3;
2115         adap = file->private_data - mem;
2116
2117         (void)t4_fwcache(adap, FW_PARAM_DEV_FWCACHE_FLUSH);
2118
2119         return 0;
2120 }
2121
2122 static ssize_t mem_read(struct file *file, char __user *buf, size_t count,
2123                         loff_t *ppos)
2124 {
2125         loff_t pos = *ppos;
2126         loff_t avail = file_inode(file)->i_size;
2127         unsigned int mem = (uintptr_t)file->private_data & 3;
2128         struct adapter *adap = file->private_data - mem;
2129         __be32 *data;
2130         int ret;
2131
2132         if (pos < 0)
2133                 return -EINVAL;
2134         if (pos >= avail)
2135                 return 0;
2136         if (count > avail - pos)
2137                 count = avail - pos;
2138
2139         data = t4_alloc_mem(count);
2140         if (!data)
2141                 return -ENOMEM;
2142
2143         spin_lock(&adap->win0_lock);
2144         ret = t4_memory_rw(adap, 0, mem, pos, count, data, T4_MEMORY_READ);
2145         spin_unlock(&adap->win0_lock);
2146         if (ret) {
2147                 t4_free_mem(data);
2148                 return ret;
2149         }
2150         ret = copy_to_user(buf, data, count);
2151
2152         t4_free_mem(data);
2153         if (ret)
2154                 return -EFAULT;
2155
2156         *ppos = pos + count;
2157         return count;
2158 }
2159 static const struct file_operations mem_debugfs_fops = {
2160         .owner   = THIS_MODULE,
2161         .open    = simple_open,
2162         .read    = mem_read,
2163         .llseek  = default_llseek,
2164 };
2165
2166 static void add_debugfs_mem(struct adapter *adap, const char *name,
2167                             unsigned int idx, unsigned int size_mb)
2168 {
2169         debugfs_create_file_size(name, S_IRUSR, adap->debugfs_root,
2170                                  (void *)adap + idx, &mem_debugfs_fops,
2171                                  size_mb << 20);
2172 }
2173
2174 static int blocked_fl_open(struct inode *inode, struct file *file)
2175 {
2176         file->private_data = inode->i_private;
2177         return 0;
2178 }
2179
2180 static ssize_t blocked_fl_read(struct file *filp, char __user *ubuf,
2181                                size_t count, loff_t *ppos)
2182 {
2183         int len;
2184         const struct adapter *adap = filp->private_data;
2185         char *buf;
2186         ssize_t size = (adap->sge.egr_sz + 3) / 4 +
2187                         adap->sge.egr_sz / 32 + 2; /* includes ,/\n/\0 */
2188
2189         buf = kzalloc(size, GFP_KERNEL);
2190         if (!buf)
2191                 return -ENOMEM;
2192
2193         len = snprintf(buf, size - 1, "%*pb\n",
2194                        adap->sge.egr_sz, adap->sge.blocked_fl);
2195         len += sprintf(buf + len, "\n");
2196         size = simple_read_from_buffer(ubuf, count, ppos, buf, len);
2197         t4_free_mem(buf);
2198         return size;
2199 }
2200
2201 static ssize_t blocked_fl_write(struct file *filp, const char __user *ubuf,
2202                                 size_t count, loff_t *ppos)
2203 {
2204         int err;
2205         unsigned long *t;
2206         struct adapter *adap = filp->private_data;
2207
2208         t = kcalloc(BITS_TO_LONGS(adap->sge.egr_sz), sizeof(long), GFP_KERNEL);
2209         if (!t)
2210                 return -ENOMEM;
2211
2212         err = bitmap_parse_user(ubuf, count, t, adap->sge.egr_sz);
2213         if (err)
2214                 return err;
2215
2216         bitmap_copy(adap->sge.blocked_fl, t, adap->sge.egr_sz);
2217         t4_free_mem(t);
2218         return count;
2219 }
2220
2221 static const struct file_operations blocked_fl_fops = {
2222         .owner   = THIS_MODULE,
2223         .open    = blocked_fl_open,
2224         .read    = blocked_fl_read,
2225         .write   = blocked_fl_write,
2226         .llseek  = generic_file_llseek,
2227 };
2228
2229 /* Add an array of Debug FS files.
2230  */
2231 void add_debugfs_files(struct adapter *adap,
2232                        struct t4_debugfs_entry *files,
2233                        unsigned int nfiles)
2234 {
2235         int i;
2236
2237         /* debugfs support is best effort */
2238         for (i = 0; i < nfiles; i++)
2239                 debugfs_create_file(files[i].name, files[i].mode,
2240                                     adap->debugfs_root,
2241                                     (void *)adap + files[i].data,
2242                                     files[i].ops);
2243 }
2244
2245 int t4_setup_debugfs(struct adapter *adap)
2246 {
2247         int i;
2248         u32 size = 0;
2249         struct dentry *de;
2250
2251         static struct t4_debugfs_entry t4_debugfs_files[] = {
2252                 { "cim_la", &cim_la_fops, S_IRUSR, 0 },
2253                 { "cim_pif_la", &cim_pif_la_fops, S_IRUSR, 0 },
2254                 { "cim_ma_la", &cim_ma_la_fops, S_IRUSR, 0 },
2255                 { "cim_qcfg", &cim_qcfg_fops, S_IRUSR, 0 },
2256                 { "clk", &clk_debugfs_fops, S_IRUSR, 0 },
2257                 { "devlog", &devlog_fops, S_IRUSR, 0 },
2258                 { "mbox0", &mbox_debugfs_fops, S_IRUSR | S_IWUSR, 0 },
2259                 { "mbox1", &mbox_debugfs_fops, S_IRUSR | S_IWUSR, 1 },
2260                 { "mbox2", &mbox_debugfs_fops, S_IRUSR | S_IWUSR, 2 },
2261                 { "mbox3", &mbox_debugfs_fops, S_IRUSR | S_IWUSR, 3 },
2262                 { "mbox4", &mbox_debugfs_fops, S_IRUSR | S_IWUSR, 4 },
2263                 { "mbox5", &mbox_debugfs_fops, S_IRUSR | S_IWUSR, 5 },
2264                 { "mbox6", &mbox_debugfs_fops, S_IRUSR | S_IWUSR, 6 },
2265                 { "mbox7", &mbox_debugfs_fops, S_IRUSR | S_IWUSR, 7 },
2266                 { "l2t", &t4_l2t_fops, S_IRUSR, 0},
2267                 { "mps_tcam", &mps_tcam_debugfs_fops, S_IRUSR, 0 },
2268                 { "rss", &rss_debugfs_fops, S_IRUSR, 0 },
2269                 { "rss_config", &rss_config_debugfs_fops, S_IRUSR, 0 },
2270                 { "rss_key", &rss_key_debugfs_fops, S_IRUSR, 0 },
2271                 { "rss_pf_config", &rss_pf_config_debugfs_fops, S_IRUSR, 0 },
2272                 { "rss_vf_config", &rss_vf_config_debugfs_fops, S_IRUSR, 0 },
2273                 { "sge_qinfo", &sge_qinfo_debugfs_fops, S_IRUSR, 0 },
2274                 { "ibq_tp0",  &cim_ibq_fops, S_IRUSR, 0 },
2275                 { "ibq_tp1",  &cim_ibq_fops, S_IRUSR, 1 },
2276                 { "ibq_ulp",  &cim_ibq_fops, S_IRUSR, 2 },
2277                 { "ibq_sge0", &cim_ibq_fops, S_IRUSR, 3 },
2278                 { "ibq_sge1", &cim_ibq_fops, S_IRUSR, 4 },
2279                 { "ibq_ncsi", &cim_ibq_fops, S_IRUSR, 5 },
2280                 { "obq_ulp0", &cim_obq_fops, S_IRUSR, 0 },
2281                 { "obq_ulp1", &cim_obq_fops, S_IRUSR, 1 },
2282                 { "obq_ulp2", &cim_obq_fops, S_IRUSR, 2 },
2283                 { "obq_ulp3", &cim_obq_fops, S_IRUSR, 3 },
2284                 { "obq_sge",  &cim_obq_fops, S_IRUSR, 4 },
2285                 { "obq_ncsi", &cim_obq_fops, S_IRUSR, 5 },
2286                 { "tp_la", &tp_la_fops, S_IRUSR, 0 },
2287                 { "ulprx_la", &ulprx_la_fops, S_IRUSR, 0 },
2288                 { "sensors", &sensors_debugfs_fops, S_IRUSR, 0 },
2289                 { "pm_stats", &pm_stats_debugfs_fops, S_IRUSR, 0 },
2290                 { "tx_rate", &tx_rate_debugfs_fops, S_IRUSR, 0 },
2291                 { "cctrl", &cctrl_tbl_debugfs_fops, S_IRUSR, 0 },
2292 #if IS_ENABLED(CONFIG_IPV6)
2293                 { "clip_tbl", &clip_tbl_debugfs_fops, S_IRUSR, 0 },
2294 #endif
2295                 { "blocked_fl", &blocked_fl_fops, S_IRUSR | S_IWUSR, 0 },
2296         };
2297
2298         /* Debug FS nodes common to all T5 and later adapters.
2299          */
2300         static struct t4_debugfs_entry t5_debugfs_files[] = {
2301                 { "obq_sge_rx_q0", &cim_obq_fops, S_IRUSR, 6 },
2302                 { "obq_sge_rx_q1", &cim_obq_fops, S_IRUSR, 7 },
2303         };
2304
2305         add_debugfs_files(adap,
2306                           t4_debugfs_files,
2307                           ARRAY_SIZE(t4_debugfs_files));
2308         if (!is_t4(adap->params.chip))
2309                 add_debugfs_files(adap,
2310                                   t5_debugfs_files,
2311                                   ARRAY_SIZE(t5_debugfs_files));
2312
2313         i = t4_read_reg(adap, MA_TARGET_MEM_ENABLE_A);
2314         if (i & EDRAM0_ENABLE_F) {
2315                 size = t4_read_reg(adap, MA_EDRAM0_BAR_A);
2316                 add_debugfs_mem(adap, "edc0", MEM_EDC0, EDRAM0_SIZE_G(size));
2317         }
2318         if (i & EDRAM1_ENABLE_F) {
2319                 size = t4_read_reg(adap, MA_EDRAM1_BAR_A);
2320                 add_debugfs_mem(adap, "edc1", MEM_EDC1, EDRAM1_SIZE_G(size));
2321         }
2322         if (is_t5(adap->params.chip)) {
2323                 if (i & EXT_MEM0_ENABLE_F) {
2324                         size = t4_read_reg(adap, MA_EXT_MEMORY0_BAR_A);
2325                         add_debugfs_mem(adap, "mc0", MEM_MC0,
2326                                         EXT_MEM0_SIZE_G(size));
2327                 }
2328                 if (i & EXT_MEM1_ENABLE_F) {
2329                         size = t4_read_reg(adap, MA_EXT_MEMORY1_BAR_A);
2330                         add_debugfs_mem(adap, "mc1", MEM_MC1,
2331                                         EXT_MEM1_SIZE_G(size));
2332                 }
2333         } else {
2334                 if (i & EXT_MEM_ENABLE_F)
2335                         size = t4_read_reg(adap, MA_EXT_MEMORY_BAR_A);
2336                         add_debugfs_mem(adap, "mc", MEM_MC,
2337                                         EXT_MEM_SIZE_G(size));
2338         }
2339
2340         de = debugfs_create_file_size("flash", S_IRUSR, adap->debugfs_root, adap,
2341                                       &flash_debugfs_fops, adap->params.sf_size);
2342
2343         return 0;
2344 }