lspci.c

   1 /*
   2  *      The PCI Utilities -- List All PCI Devices
   3  *
   4  *      Copyright (c) 1997--2015 Martin Mares <mj@ucw.cz>
   5  *
   6  *      Can be freely distributed and used under the terms of the GNU GPL.
   7  */
   8
   9 #include <stdio.h>
  10 #include <string.h>
  11 #include <stdlib.h>
  12 #include <stdarg.h>
  13
  14 #include "lspci.h"
  15
  16 /* Options */
  17
  18 int verbose;                            /* Show detailed information */
  19 static int opt_hex;                     /* Show contents of config space as hexadecimal numbers */
  20 struct pci_filter filter;               /* Device filter */
  21 static int opt_tree;                    /* Show bus tree */
  22 static int opt_machine;                 /* Generate machine-readable output */
  23 static int opt_map_mode;                /* Bus mapping mode enabled */
  24 static int opt_domains;                 /* Show domain numbers (0=disabled, 1=auto-detected, 2=requested) */
  25 static int opt_kernel;                  /* Show kernel drivers */
  26 static int opt_query_dns;               /* Query the DNS (0=disabled, 1=enabled, 2=refresh cache) */
  27 static int opt_query_all;               /* Query the DNS for all entries */
  28 char *opt_pcimap;                       /* Override path to Linux modules.pcimap */
  29
  30 const char program_name[] = "lspci";
  31
  32 static char options[] = "nvbxs:d:ti:mgp:qkMDQ" GENERIC_OPTIONS ;
  33
  34 static char help_msg[] =
  35 "Usage: lspci [<switches>]\n"
  36 "\n"
  37 "Basic display modes:\n"
  38 "-mm\t\tProduce machine-readable output (single -m for an obsolete format)\n"
  39 "-t\t\tShow bus tree\n"
  40 "\n"
  41 "Display options:\n"
  42 "-v\t\tBe verbose (-vv for very verbose)\n"
  43 #ifdef PCI_OS_LINUX
  44 "-k\t\tShow kernel drivers handling each device\n"
  45 #endif
  46 "-x\t\tShow hex-dump of the standard part of the config space\n"
  47 "-xxx\t\tShow hex-dump of the whole config space (dangerous; root only)\n"
  48 "-xxxx\t\tShow hex-dump of the 4096-byte extended config space (root only)\n"
  49 "-b\t\tBus-centric view (addresses and IRQ's as seen by the bus)\n"
  50 "-D\t\tAlways show domain numbers\n"
  51 "\n"
  52 "Resolving of device ID's to names:\n"
  53 "-n\t\tShow numeric ID's\n"
  54 "-nn\t\tShow both textual and numeric ID's (names & numbers)\n"
  55 #ifdef PCI_USE_DNS
  56 "-q\t\tQuery the PCI ID database for unknown ID's via DNS\n"
  57 "-qq\t\tAs above, but re-query locally cached entries\n"
  58 "-Q\t\tQuery the PCI ID database for all ID's via DNS\n"
  59 #endif
  60 "\n"
  61 "Selection of devices:\n"
  62 "-s [[[[<domain>]:]<bus>]:][<slot>][.[<func>]]\tShow only devices in selected slots\n"
  63 "-d [<vendor>]:[<device>][:<class>]\t\tShow only devices with specified ID's\n"
  64 "\n"
  65 "Other options:\n"
  66 "-i <file>\tUse specified ID database instead of %s\n"
  67 #ifdef PCI_OS_LINUX
  68 "-p <file>\tLook up kernel modules in a given file instead of default modules.pcimap\n"
  69 #endif
  70 "-M\t\tEnable `bus mapping' mode (dangerous; root only)\n"
  71 "\n"
  72 "PCI access options:\n"
  73 GENERIC_HELP
  74 ;
  75
  76 /*** Our view of the PCI bus ***/
  77
  78 struct pci_access *pacc;
  79 struct device *first_dev;
  80 static int seen_errors;
  81
  82 int
  83 config_fetch(struct device *d, unsigned int pos, unsigned int len)
  84 {
  85   unsigned int end = pos+len;
  86   int result;
  87
  88   while (pos < d->config_bufsize && len && d->present[pos])
  89     pos++, len--;
  90   while (pos+len <= d->config_bufsize && len && d->present[pos+len-1])
  91     len--;
  92   if (!len)
  93     return 1;
  94
  95   if (end > d->config_bufsize)
  96     {
  97       int orig_size = d->config_bufsize;
  98       while (end > d->config_bufsize)
  99         d->config_bufsize *= 2;
 100       d->config = xrealloc(d->config, d->config_bufsize);
 101       d->present = xrealloc(d->present, d->config_bufsize);
 102       memset(d->present + orig_size, 0, d->config_bufsize - orig_size);
 103     }
 104   result = pci_read_block(d->dev, pos, d->config + pos, len);
 105   if (result)
 106     memset(d->present + pos, 1, len);
 107   return result;
 108 }
 109
 110 struct device *
 111 scan_device(struct pci_dev *p)
 112 {
 113   struct device *d;
 114
 115   if (p->domain && !opt_domains)
 116     opt_domains = 1;
 117   if (!pci_filter_match(&filter, p))
 118     return NULL;
 119   d = xmalloc(sizeof(struct device));
 120   memset(d, 0, sizeof(*d));
 121   d->dev = p;
 122   d->config_cached = d->config_bufsize = 64;
 123   d->config = xmalloc(64);
 124   d->present = xmalloc(64);
 125   memset(d->present, 1, 64);
 126   if (!pci_read_block(p, 0, d->config, 64))
 127     {
 128       fprintf(stderr, "lspci: Unable to read the standard configuration space header of device %04x:%02x:%02x.%d\n",
 129               p->domain, p->bus, p->dev, p->func);
 130       seen_errors++;
 131       return NULL;
 132     }
 133   if ((d->config[PCI_HEADER_TYPE] & 0x7f) == PCI_HEADER_TYPE_CARDBUS)
 134     {
 135       /* For cardbus bridges, we need to fetch 64 bytes more to get the
 136        * full standard header... */
 137       if (config_fetch(d, 64, 64))
 138         d->config_cached += 64;
 139     }
 140   pci_setup_cache(p, d->config, d->config_cached);
 141   pci_fill_info(p, PCI_FILL_IDENT | PCI_FILL_CLASS);
 142   return d;
 143 }
 144
 145 static void
 146 scan_devices(void)
 147 {
 148   struct device *d;
 149   struct pci_dev *p;
 150
 151   pci_scan_bus(pacc);
 152   for (p=pacc->devices; p; p=p->next)
 153     if (d = scan_device(p))
 154       {
 155         d->next = first_dev;
 156         first_dev = d;
 157       }
 158 }
 159
 160 /*** Config space accesses ***/
 161
 162 static void
 163 check_conf_range(struct device *d, unsigned int pos, unsigned int len)
 164 {
 165   while (len)
 166     if (!d->present[pos])
 167       die("Internal bug: Accessing non-read configuration byte at position %x", pos);
 168     else
 169       pos++, len--;
 170 }
 171
 172 byte
 173 get_conf_byte(struct device *d, unsigned int pos)
 174 {
 175   check_conf_range(d, pos, 1);
 176   return d->config[pos];
 177 }
 178
 179 word
 180 get_conf_word(struct device *d, unsigned int pos)
 181 {
 182   check_conf_range(d, pos, 2);
 183   return d->config[pos] | (d->config[pos+1] << 8);
 184 }
 185
 186 u32
 187 get_conf_long(struct device *d, unsigned int pos)
 188 {
 189   check_conf_range(d, pos, 4);
 190   return d->config[pos] |
 191     (d->config[pos+1] << 8) |
 192     (d->config[pos+2] << 16) |
 193     (d->config[pos+3] << 24);
 194 }
 195
 196 /*** Sorting ***/
 197
 198 static int
 199 compare_them(const void *A, const void *B)
 200 {
 201   const struct pci_dev *a = (*(const struct device **)A)->dev;
 202   const struct pci_dev *b = (*(const struct device **)B)->dev;
 203
 204   if (a->domain < b->domain)
 205     return -1;
 206   if (a->domain > b->domain)
 207     return 1;
 208   if (a->bus < b->bus)
 209     return -1;
 210   if (a->bus > b->bus)
 211     return 1;
 212   if (a->dev < b->dev)
 213     return -1;
 214   if (a->dev > b->dev)
 215     return 1;
 216   if (a->func < b->func)
 217     return -1;
 218   if (a->func > b->func)
 219     return 1;
 220   return 0;
 221 }
 222
 223 static void
 224 sort_them(void)
 225 {
 226   struct device **index, **h, **last_dev;
 227   int cnt;
 228   struct device *d;
 229
 230   cnt = 0;
 231   for (d=first_dev; d; d=d->next)
 232     cnt++;
 233   h = index = alloca(sizeof(struct device *) * cnt);
 234   for (d=first_dev; d; d=d->next)
 235     *h++ = d;
 236   qsort(index, cnt, sizeof(struct device *), compare_them);
 237   last_dev = &first_dev;
 238   h = index;
 239   while (cnt--)
 240     {
 241       *last_dev = *h;
 242       last_dev = &(*h)->next;
 243       h++;
 244     }
 245   *last_dev = NULL;
 246 }
 247
 248 /*** Normal output ***/
 249
 250 static void
 251 show_slot_name(struct device *d)
 252 {
 253   struct pci_dev *p = d->dev;
 254
 255   if (!opt_machine ? opt_domains : (p->domain || opt_domains >= 2))
 256     printf("%04x:", p->domain);
 257   printf("%02x:%02x.%d", p->bus, p->dev, p->func);
 258 }
 259
 260 void
 261 get_subid(struct device *d, word *subvp, word *subdp)
 262 {
 263   byte htype = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
 264
 265   if (htype == PCI_HEADER_TYPE_NORMAL)
 266     {
 267       *subvp = get_conf_word(d, PCI_SUBSYSTEM_VENDOR_ID);
 268       *subdp = get_conf_word(d, PCI_SUBSYSTEM_ID);
 269     }
 270   else if (htype == PCI_HEADER_TYPE_CARDBUS && d->config_cached >= 128)
 271     {
 272       *subvp = get_conf_word(d, PCI_CB_SUBSYSTEM_VENDOR_ID);
 273       *subdp = get_conf_word(d, PCI_CB_SUBSYSTEM_ID);
 274     }
 275   else
 276     *subvp = *subdp = 0xffff;
 277 }
 278
 279 static void
 280 show_terse(struct device *d)
 281 {
 282   int c;
 283   struct pci_dev *p = d->dev;
 284   char classbuf[128], devbuf[128];
 285
 286   show_slot_name(d);
 287   printf(" %s: %s",
 288          pci_lookup_name(pacc, classbuf, sizeof(classbuf),
 289                          PCI_LOOKUP_CLASS,
 290                          p->device_class),
 291          pci_lookup_name(pacc, devbuf, sizeof(devbuf),
 292                          PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
 293                          p->vendor_id, p->device_id));
 294   if (c = get_conf_byte(d, PCI_REVISION_ID))
 295     printf(" (rev %02x)", c);
 296   if (verbose)
 297     {
 298       char *x;
 299       c = get_conf_byte(d, PCI_CLASS_PROG);
 300       x = pci_lookup_name(pacc, devbuf, sizeof(devbuf),
 301                           PCI_LOOKUP_PROGIF | PCI_LOOKUP_NO_NUMBERS,
 302                           p->device_class, c);
 303       if (c || x)
 304         {
 305           printf(" (prog-if %02x", c);
 306           if (x)
 307             printf(" [%s]", x);
 308           putchar(')');
 309         }
 310     }
 311   putchar('\n');
 312
 313   if (verbose || opt_kernel)
 314     {
 315       word subsys_v, subsys_d;
 316       char ssnamebuf[256];
 317
 318       if (p->label)
 319         printf("\tDeviceName: %s", p->label);
 320       get_subid(d, &subsys_v, &subsys_d);
 321       if (subsys_v && subsys_v != 0xffff)
 322         printf("\tSubsystem: %s\n",
 323                 pci_lookup_name(pacc, ssnamebuf, sizeof(ssnamebuf),
 324                         PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
 325                         p->vendor_id, p->device_id, subsys_v, subsys_d));
 326     }
 327 }
 328
 329 /*** Verbose output ***/
 330
 331 static void
 332 show_size(pciaddr_t x)
 333 {
 334   static const char suffix[][2] = { "", "K", "M", "G", "T" };
 335   unsigned i;
 336   if (!x)
 337     return;
 338   for (i = 0; i < (sizeof(suffix) / sizeof(*suffix) - 1); i++) {
 339     if (x % 1024)
 340       break;
 341     x /= 1024;
 342   }
 343   printf(" [size=%u%s]", (unsigned)x, suffix[i]);
 344 }
 345
 346 static void
 347 show_bases(struct device *d, int cnt)
 348 {
 349   struct pci_dev *p = d->dev;
 350   word cmd = get_conf_word(d, PCI_COMMAND);
 351   int i;
 352   int virtual = 0;
 353
 354   for (i=0; i<cnt; i++)
 355     {
 356       pciaddr_t pos = p->base_addr[i];
 357       pciaddr_t len = (p->known_fields & PCI_FILL_SIZES) ? p->size[i] : 0;
 358       pciaddr_t ioflg = (p->known_fields & PCI_FILL_IO_FLAGS) ? p->flags[i] : 0;
 359       u32 flg = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
 360       if (flg == 0xffffffff)
 361         flg = 0;
 362       if (!pos && !flg && !len)
 363         continue;
 364       if (verbose > 1)
 365         printf("\tRegion %d: ", i);
 366       else
 367         putchar('\t');
 368       if (ioflg & PCI_IORESOURCE_PCI_EA_BEI)
 369           printf("[enhanced] ");
 370       else if (pos && !flg)     /* Reported by the OS, but not by the device */
 371         {
 372           printf("[virtual] ");
 373           flg = pos;
 374           virtual = 1;
 375         }
 376       if (flg & PCI_BASE_ADDRESS_SPACE_IO)
 377         {
 378           pciaddr_t a = pos & PCI_BASE_ADDRESS_IO_MASK;
 379           printf("I/O ports at ");
 380           if (a || (cmd & PCI_COMMAND_IO))
 381             printf(PCIADDR_PORT_FMT, a);
 382           else if (flg & PCI_BASE_ADDRESS_IO_MASK)
 383             printf("<ignored>");
 384           else
 385             printf("<unassigned>");
 386           if (!virtual && !(cmd & PCI_COMMAND_IO))
 387             printf(" [disabled]");
 388         }
 389       else
 390         {
 391           int t = flg & PCI_BASE_ADDRESS_MEM_TYPE_MASK;
 392           pciaddr_t a = pos & PCI_ADDR_MEM_MASK;
 393           int done = 0;
 394           u32 z = 0;
 395
 396           printf("Memory at ");
 397           if (t == PCI_BASE_ADDRESS_MEM_TYPE_64)
 398             {
 399               if (i >= cnt - 1)
 400                 {
 401                   printf("<invalid-64bit-slot>");
 402                   done = 1;
 403                 }
 404               else
 405                 {
 406                   i++;
 407                   z = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
 408                 }
 409             }
 410           if (!done)
 411             {
 412               if (a)
 413                 printf(PCIADDR_T_FMT, a);
 414               else
 415                 printf(((flg & PCI_BASE_ADDRESS_MEM_MASK) || z) ? "<ignored>" : "<unassigned>");
 416             }
 417           printf(" (%s, %sprefetchable)",
 418                  (t == PCI_BASE_ADDRESS_MEM_TYPE_32) ? "32-bit" :
 419                  (t == PCI_BASE_ADDRESS_MEM_TYPE_64) ? "64-bit" :
 420                  (t == PCI_BASE_ADDRESS_MEM_TYPE_1M) ? "low-1M" : "type 3",
 421                  (flg & PCI_BASE_ADDRESS_MEM_PREFETCH) ? "" : "non-");
 422           if (!virtual && !(cmd & PCI_COMMAND_MEMORY))
 423             printf(" [disabled]");
 424         }
 425       show_size(len);
 426       putchar('\n');
 427     }
 428 }
 429
 430 static void
 431 show_rom(struct device *d, int reg)
 432 {
 433   struct pci_dev *p = d->dev;
 434   pciaddr_t rom = p->rom_base_addr;
 435   pciaddr_t len = (p->known_fields & PCI_FILL_SIZES) ? p->rom_size : 0;
 436   pciaddr_t ioflg = (p->known_fields & PCI_FILL_IO_FLAGS) ? p->rom_flags : 0;
 437   u32 flg = get_conf_long(d, reg);
 438   word cmd = get_conf_word(d, PCI_COMMAND);
 439   int virtual = 0;
 440
 441   if (!rom && !flg && !len)
 442     return;
 443   putchar('\t');
 444   if (ioflg & PCI_IORESOURCE_PCI_EA_BEI)
 445       printf("[enhanced] ");
 446   else if ((rom & PCI_ROM_ADDRESS_MASK) && !(flg & PCI_ROM_ADDRESS_MASK))
 447     {
 448       printf("[virtual] ");
 449       flg = rom;
 450       virtual = 1;
 451     }
 452   printf("Expansion ROM at ");
 453   if (rom & PCI_ROM_ADDRESS_MASK)
 454     printf(PCIADDR_T_FMT, rom & PCI_ROM_ADDRESS_MASK);
 455   else if (flg & PCI_ROM_ADDRESS_MASK)
 456     printf("<ignored>");
 457   else
 458     printf("<unassigned>");
 459   if (!(flg & PCI_ROM_ADDRESS_ENABLE))
 460     printf(" [disabled]");
 461   else if (!virtual && !(cmd & PCI_COMMAND_MEMORY))
 462     printf(" [disabled by cmd]");
 463   show_size(len);
 464   putchar('\n');
 465 }
 466
 467 static void
 468 show_htype0(struct device *d)
 469 {
 470   show_bases(d, 6);
 471   show_rom(d, PCI_ROM_ADDRESS);
 472   show_caps(d, PCI_CAPABILITY_LIST);
 473 }
 474
 475 static void
 476 show_htype1(struct device *d)
 477 {
 478   u32 io_base = get_conf_byte(d, PCI_IO_BASE);
 479   u32 io_limit = get_conf_byte(d, PCI_IO_LIMIT);
 480   u32 io_type = io_base & PCI_IO_RANGE_TYPE_MASK;
 481   u32 mem_base = get_conf_word(d, PCI_MEMORY_BASE);
 482   u32 mem_limit = get_conf_word(d, PCI_MEMORY_LIMIT);
 483   u32 mem_type = mem_base & PCI_MEMORY_RANGE_TYPE_MASK;
 484   u32 pref_base = get_conf_word(d, PCI_PREF_MEMORY_BASE);
 485   u32 pref_limit = get_conf_word(d, PCI_PREF_MEMORY_LIMIT);
 486   u32 pref_type = pref_base & PCI_PREF_RANGE_TYPE_MASK;
 487   word sec_stat = get_conf_word(d, PCI_SEC_STATUS);
 488   word brc = get_conf_word(d, PCI_BRIDGE_CONTROL);
 489   int verb = verbose > 2;
 490
 491   show_bases(d, 2);
 492   printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
 493          get_conf_byte(d, PCI_PRIMARY_BUS),
 494          get_conf_byte(d, PCI_SECONDARY_BUS),
 495          get_conf_byte(d, PCI_SUBORDINATE_BUS),
 496          get_conf_byte(d, PCI_SEC_LATENCY_TIMER));
 497
 498   if (io_type != (io_limit & PCI_IO_RANGE_TYPE_MASK) ||
 499       (io_type != PCI_IO_RANGE_TYPE_16 && io_type != PCI_IO_RANGE_TYPE_32))
 500     printf("\t!!! Unknown I/O range types %x/%x\n", io_base, io_limit);
 501   else
 502     {
 503       io_base = (io_base & PCI_IO_RANGE_MASK) << 8;
 504       io_limit = (io_limit & PCI_IO_RANGE_MASK) << 8;
 505       if (io_type == PCI_IO_RANGE_TYPE_32)
 506         {
 507           io_base |= (get_conf_word(d, PCI_IO_BASE_UPPER16) << 16);
 508           io_limit |= (get_conf_word(d, PCI_IO_LIMIT_UPPER16) << 16);
 509         }
 510       if (io_base <= io_limit || verb)
 511         printf("\tI/O behind bridge: %08x-%08x\n", io_base, io_limit+0xfff);
 512     }
 513
 514   if (mem_type != (mem_limit & PCI_MEMORY_RANGE_TYPE_MASK) ||
 515       mem_type)
 516     printf("\t!!! Unknown memory range types %x/%x\n", mem_base, mem_limit);
 517   else
 518     {
 519       mem_base = (mem_base & PCI_MEMORY_RANGE_MASK) << 16;
 520       mem_limit = (mem_limit & PCI_MEMORY_RANGE_MASK) << 16;
 521       if (mem_base <= mem_limit || verb)
 522         printf("\tMemory behind bridge: %08x-%08x\n", mem_base, mem_limit + 0xfffff);
 523     }
 524
 525   if (pref_type != (pref_limit & PCI_PREF_RANGE_TYPE_MASK) ||
 526       (pref_type != PCI_PREF_RANGE_TYPE_32 && pref_type != PCI_PREF_RANGE_TYPE_64))
 527     printf("\t!!! Unknown prefetchable memory range types %x/%x\n", pref_base, pref_limit);
 528   else
 529     {
 530       pref_base = (pref_base & PCI_PREF_RANGE_MASK) << 16;
 531       pref_limit = (pref_limit & PCI_PREF_RANGE_MASK) << 16;
 532       if (pref_base <= pref_limit || verb)
 533         {
 534           if (pref_type == PCI_PREF_RANGE_TYPE_32)
 535             printf("\tPrefetchable memory behind bridge: %08x-%08x\n", pref_base, pref_limit + 0xfffff);
 536           else
 537             printf("\tPrefetchable memory behind bridge: %08x%08x-%08x%08x\n",
 538                    get_conf_long(d, PCI_PREF_BASE_UPPER32),
 539                    pref_base,
 540                    get_conf_long(d, PCI_PREF_LIMIT_UPPER32),
 541                    pref_limit + 0xfffff);
 542         }
 543     }
 544
 545   if (verbose > 1)
 546     printf("\tSecondary status: 66MHz%c FastB2B%c ParErr%c DEVSEL=%s >TAbort%c <TAbort%c <MAbort%c <SERR%c <PERR%c\n",
 547              FLAG(sec_stat, PCI_STATUS_66MHZ),
 548              FLAG(sec_stat, PCI_STATUS_FAST_BACK),
 549              FLAG(sec_stat, PCI_STATUS_PARITY),
 550              ((sec_stat & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
 551              ((sec_stat & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
 552              ((sec_stat & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??",
 553              FLAG(sec_stat, PCI_STATUS_SIG_TARGET_ABORT),
 554              FLAG(sec_stat, PCI_STATUS_REC_TARGET_ABORT),
 555              FLAG(sec_stat, PCI_STATUS_REC_MASTER_ABORT),
 556              FLAG(sec_stat, PCI_STATUS_SIG_SYSTEM_ERROR),
 557              FLAG(sec_stat, PCI_STATUS_DETECTED_PARITY));
 558
 559   show_rom(d, PCI_ROM_ADDRESS1);
 560
 561   if (verbose > 1)
 562     {
 563       printf("\tBridgeCtl: Parity%c SERR%c NoISA%c VGA%c MAbort%c >Reset%c FastB2B%c\n",
 564         FLAG(brc, PCI_BRIDGE_CTL_PARITY),
 565         FLAG(brc, PCI_BRIDGE_CTL_SERR),
 566         FLAG(brc, PCI_BRIDGE_CTL_NO_ISA),
 567         FLAG(brc, PCI_BRIDGE_CTL_VGA),
 568         FLAG(brc, PCI_BRIDGE_CTL_MASTER_ABORT),
 569         FLAG(brc, PCI_BRIDGE_CTL_BUS_RESET),
 570         FLAG(brc, PCI_BRIDGE_CTL_FAST_BACK));
 571       printf("\t\tPriDiscTmr%c SecDiscTmr%c DiscTmrStat%c DiscTmrSERREn%c\n",
 572         FLAG(brc, PCI_BRIDGE_CTL_PRI_DISCARD_TIMER),
 573         FLAG(brc, PCI_BRIDGE_CTL_SEC_DISCARD_TIMER),
 574         FLAG(brc, PCI_BRIDGE_CTL_DISCARD_TIMER_STATUS),
 575         FLAG(brc, PCI_BRIDGE_CTL_DISCARD_TIMER_SERR_EN));
 576     }
 577
 578   show_caps(d, PCI_CAPABILITY_LIST);
 579 }
 580
 581 static void
 582 show_htype2(struct device *d)
 583 {
 584   int i;
 585   word cmd = get_conf_word(d, PCI_COMMAND);
 586   word brc = get_conf_word(d, PCI_CB_BRIDGE_CONTROL);
 587   word exca;
 588   int verb = verbose > 2;
 589
 590   show_bases(d, 1);
 591   printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
 592          get_conf_byte(d, PCI_CB_PRIMARY_BUS),
 593          get_conf_byte(d, PCI_CB_CARD_BUS),
 594          get_conf_byte(d, PCI_CB_SUBORDINATE_BUS),
 595          get_conf_byte(d, PCI_CB_LATENCY_TIMER));
 596   for (i=0; i<2; i++)
 597     {
 598       int p = 8*i;
 599       u32 base = get_conf_long(d, PCI_CB_MEMORY_BASE_0 + p);
 600       u32 limit = get_conf_long(d, PCI_CB_MEMORY_LIMIT_0 + p);
 601       limit = limit + 0xfff;
 602       if (base <= limit || verb)
 603         printf("\tMemory window %d: %08x-%08x%s%s\n", i, base, limit,
 604                (cmd & PCI_COMMAND_MEMORY) ? "" : " [disabled]",
 605                (brc & (PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 << i)) ? " (prefetchable)" : "");
 606     }
 607   for (i=0; i<2; i++)
 608     {
 609       int p = 8*i;
 610       u32 base = get_conf_long(d, PCI_CB_IO_BASE_0 + p);
 611       u32 limit = get_conf_long(d, PCI_CB_IO_LIMIT_0 + p);
 612       if (!(base & PCI_IO_RANGE_TYPE_32))
 613         {
 614           base &= 0xffff;
 615           limit &= 0xffff;
 616         }
 617       base &= PCI_CB_IO_RANGE_MASK;
 618       limit = (limit & PCI_CB_IO_RANGE_MASK) + 3;
 619       if (base <= limit || verb)
 620         printf("\tI/O window %d: %08x-%08x%s\n", i, base, limit,
 621                (cmd & PCI_COMMAND_IO) ? "" : " [disabled]");
 622     }
 623
 624   if (get_conf_word(d, PCI_CB_SEC_STATUS) & PCI_STATUS_SIG_SYSTEM_ERROR)
 625     printf("\tSecondary status: SERR\n");
 626   if (verbose > 1)
 627     printf("\tBridgeCtl: Parity%c SERR%c ISA%c VGA%c MAbort%c >Reset%c 16bInt%c PostWrite%c\n",
 628            FLAG(brc, PCI_CB_BRIDGE_CTL_PARITY),
 629            FLAG(brc, PCI_CB_BRIDGE_CTL_SERR),
 630            FLAG(brc, PCI_CB_BRIDGE_CTL_ISA),
 631            FLAG(brc, PCI_CB_BRIDGE_CTL_VGA),
 632            FLAG(brc, PCI_CB_BRIDGE_CTL_MASTER_ABORT),
 633            FLAG(brc, PCI_CB_BRIDGE_CTL_CB_RESET),
 634            FLAG(brc, PCI_CB_BRIDGE_CTL_16BIT_INT),
 635            FLAG(brc, PCI_CB_BRIDGE_CTL_POST_WRITES));
 636
 637   if (d->config_cached < 128)
 638     {
 639       printf("\t<access denied to the rest>\n");
 640       return;
 641     }
 642
 643   exca = get_conf_word(d, PCI_CB_LEGACY_MODE_BASE);
 644   if (exca)
 645     printf("\t16-bit legacy interface ports at %04x\n", exca);
 646   show_caps(d, PCI_CB_CAPABILITY_LIST);
 647 }
 648
 649 static void
 650 show_verbose(struct device *d)
 651 {
 652   struct pci_dev *p = d->dev;
 653   word status = get_conf_word(d, PCI_STATUS);
 654   word cmd = get_conf_word(d, PCI_COMMAND);
 655   word class = p->device_class;
 656   byte bist = get_conf_byte(d, PCI_BIST);
 657   byte htype = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
 658   byte latency = get_conf_byte(d, PCI_LATENCY_TIMER);
 659   byte cache_line = get_conf_byte(d, PCI_CACHE_LINE_SIZE);
 660   byte max_lat, min_gnt;
 661   byte int_pin = get_conf_byte(d, PCI_INTERRUPT_PIN);
 662   unsigned int irq;
 663
 664   show_terse(d);
 665
 666   pci_fill_info(p, PCI_FILL_IRQ | PCI_FILL_BASES | PCI_FILL_ROM_BASE | PCI_FILL_SIZES |
 667     PCI_FILL_PHYS_SLOT | PCI_FILL_LABEL | PCI_FILL_NUMA_NODE);
 668   irq = p->irq;
 669
 670   switch (htype)
 671     {
 672     case PCI_HEADER_TYPE_NORMAL:
 673       if (class == PCI_CLASS_BRIDGE_PCI)
 674         printf("\t!!! Invalid class %04x for header type %02x\n", class, htype);
 675       max_lat = get_conf_byte(d, PCI_MAX_LAT);
 676       min_gnt = get_conf_byte(d, PCI_MIN_GNT);
 677       break;
 678     case PCI_HEADER_TYPE_BRIDGE:
 679       if ((class >> 8) != PCI_BASE_CLASS_BRIDGE)
 680         printf("\t!!! Invalid class %04x for header type %02x\n", class, htype);
 681       min_gnt = max_lat = 0;
 682       break;
 683     case PCI_HEADER_TYPE_CARDBUS:
 684       if ((class >> 8) != PCI_BASE_CLASS_BRIDGE)
 685         printf("\t!!! Invalid class %04x for header type %02x\n", class, htype);
 686       min_gnt = max_lat = 0;
 687       break;
 688     default:
 689       printf("\t!!! Unknown header type %02x\n", htype);
 690       return;
 691     }
 692
 693   if (p->phy_slot)
 694     printf("\tPhysical Slot: %s\n", p->phy_slot);
 695
 696   if (verbose > 1)
 697     {
 698       printf("\tControl: I/O%c Mem%c BusMaster%c SpecCycle%c MemWINV%c VGASnoop%c ParErr%c Stepping%c SERR%c FastB2B%c DisINTx%c\n",
 699              FLAG(cmd, PCI_COMMAND_IO),
 700              FLAG(cmd, PCI_COMMAND_MEMORY),
 701              FLAG(cmd, PCI_COMMAND_MASTER),
 702              FLAG(cmd, PCI_COMMAND_SPECIAL),
 703              FLAG(cmd, PCI_COMMAND_INVALIDATE),
 704              FLAG(cmd, PCI_COMMAND_VGA_PALETTE),
 705              FLAG(cmd, PCI_COMMAND_PARITY),
 706              FLAG(cmd, PCI_COMMAND_WAIT),
 707              FLAG(cmd, PCI_COMMAND_SERR),
 708              FLAG(cmd, PCI_COMMAND_FAST_BACK),
 709              FLAG(cmd, PCI_COMMAND_DISABLE_INTx));
 710       printf("\tStatus: Cap%c 66MHz%c UDF%c FastB2B%c ParErr%c DEVSEL=%s >TAbort%c <TAbort%c <MAbort%c >SERR%c <PERR%c INTx%c\n",
 711              FLAG(status, PCI_STATUS_CAP_LIST),
 712              FLAG(status, PCI_STATUS_66MHZ),
 713              FLAG(status, PCI_STATUS_UDF),
 714              FLAG(status, PCI_STATUS_FAST_BACK),
 715              FLAG(status, PCI_STATUS_PARITY),
 716              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
 717              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
 718              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??",
 719              FLAG(status, PCI_STATUS_SIG_TARGET_ABORT),
 720              FLAG(status, PCI_STATUS_REC_TARGET_ABORT),
 721              FLAG(status, PCI_STATUS_REC_MASTER_ABORT),
 722              FLAG(status, PCI_STATUS_SIG_SYSTEM_ERROR),
 723              FLAG(status, PCI_STATUS_DETECTED_PARITY),
 724              FLAG(status, PCI_STATUS_INTx));
 725       if (cmd & PCI_COMMAND_MASTER)
 726         {
 727           printf("\tLatency: %d", latency);
 728           if (min_gnt || max_lat)
 729             {
 730               printf(" (");
 731               if (min_gnt)
 732                 printf("%dns min", min_gnt*250);
 733               if (min_gnt && max_lat)
 734                 printf(", ");
 735               if (max_lat)
 736                 printf("%dns max", max_lat*250);
 737               putchar(')');
 738             }
 739           if (cache_line)
 740             printf(", Cache Line Size: %d bytes", cache_line * 4);
 741           putchar('\n');
 742         }
 743       if (int_pin || irq)
 744         printf("\tInterrupt: pin %c routed to IRQ " PCIIRQ_FMT "\n",
 745                (int_pin ? 'A' + int_pin - 1 : '?'), irq);
 746       if (p->numa_node != -1)
 747         printf("\tNUMA node: %d\n", p->numa_node);
 748     }
 749   else
 750     {
 751       printf("\tFlags: ");
 752       if (cmd & PCI_COMMAND_MASTER)
 753         printf("bus master, ");
 754       if (cmd & PCI_COMMAND_VGA_PALETTE)
 755         printf("VGA palette snoop, ");
 756       if (cmd & PCI_COMMAND_WAIT)
 757         printf("stepping, ");
 758       if (cmd & PCI_COMMAND_FAST_BACK)
 759         printf("fast Back2Back, ");
 760       if (status & PCI_STATUS_66MHZ)
 761         printf("66MHz, ");
 762       if (status & PCI_STATUS_UDF)
 763         printf("user-definable features, ");
 764       printf("%s devsel",
 765              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
 766              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
 767              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??");
 768       if (cmd & PCI_COMMAND_MASTER)
 769         printf(", latency %d", latency);
 770       if (irq)
 771         printf(", IRQ " PCIIRQ_FMT, irq);
 772       if (p->numa_node != -1)
 773         printf(", NUMA node %d", p->numa_node);
 774       putchar('\n');
 775     }
 776
 777   if (bist & PCI_BIST_CAPABLE)
 778     {
 779       if (bist & PCI_BIST_START)
 780         printf("\tBIST is running\n");
 781       else
 782         printf("\tBIST result: %02x\n", bist & PCI_BIST_CODE_MASK);
 783     }
 784
 785   switch (htype)
 786     {
 787     case PCI_HEADER_TYPE_NORMAL:
 788       show_htype0(d);
 789       break;
 790     case PCI_HEADER_TYPE_BRIDGE:
 791       show_htype1(d);
 792       break;
 793     case PCI_HEADER_TYPE_CARDBUS:
 794       show_htype2(d);
 795       break;
 796     }
 797 }
 798
 799 /*** Machine-readable dumps ***/
 800
 801 static void
 802 show_hex_dump(struct device *d)
 803 {
 804   unsigned int i, cnt;
 805
 806   cnt = d->config_cached;
 807   if (opt_hex >= 3 && config_fetch(d, cnt, 256-cnt))
 808     {
 809       cnt = 256;
 810       if (opt_hex >= 4 && config_fetch(d, 256, 4096-256))
 811         cnt = 4096;
 812     }
 813
 814   for (i=0; i<cnt; i++)
 815     {
 816       if (! (i & 15))
 817         printf("%02x:", i);
 818       printf(" %02x", get_conf_byte(d, i));
 819       if ((i & 15) == 15)
 820         putchar('\n');
 821     }
 822 }
 823
 824 static void
 825 print_shell_escaped(char *c)
 826 {
 827   printf(" \"");
 828   while (*c)
 829     {
 830       if (*c == '"' || *c == '\\')
 831         putchar('\\');
 832       putchar(*c++);
 833     }
 834   putchar('"');
 835 }
 836
 837 static void
 838 show_machine(struct device *d)
 839 {
 840   struct pci_dev *p = d->dev;
 841   int c;
 842   word sv_id, sd_id;
 843   char classbuf[128], vendbuf[128], devbuf[128], svbuf[128], sdbuf[128];
 844
 845   get_subid(d, &sv_id, &sd_id);
 846
 847   if (verbose)
 848     {
 849       pci_fill_info(p, PCI_FILL_PHYS_SLOT | PCI_FILL_NUMA_NODE);
 850       printf((opt_machine >= 2) ? "Slot:\t" : "Device:\t");
 851       show_slot_name(d);
 852       putchar('\n');
 853       printf("Class:\t%s\n",
 854              pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS, p->device_class));
 855       printf("Vendor:\t%s\n",
 856              pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id));
 857       printf("Device:\t%s\n",
 858              pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id));
 859       if (sv_id && sv_id != 0xffff)
 860         {
 861           printf("SVendor:\t%s\n",
 862                  pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, sv_id));
 863           printf("SDevice:\t%s\n",
 864                  pci_lookup_name(pacc, sdbuf, sizeof(sdbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id, sv_id, sd_id));
 865         }
 866       if (p->phy_slot)
 867         printf("PhySlot:\t%s\n", p->phy_slot);
 868       if (c = get_conf_byte(d, PCI_REVISION_ID))
 869         printf("Rev:\t%02x\n", c);
 870       if (c = get_conf_byte(d, PCI_CLASS_PROG))
 871         printf("ProgIf:\t%02x\n", c);
 872       if (opt_kernel)
 873         show_kernel_machine(d);
 874       if (p->numa_node != -1)
 875         printf("NUMANode:\t%d\n", p->numa_node);
 876     }
 877   else
 878     {
 879       show_slot_name(d);
 880       print_shell_escaped(pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS, p->device_class));
 881       print_shell_escaped(pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id));
 882       print_shell_escaped(pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id));
 883       if (c = get_conf_byte(d, PCI_REVISION_ID))
 884         printf(" -r%02x", c);
 885       if (c = get_conf_byte(d, PCI_CLASS_PROG))
 886         printf(" -p%02x", c);
 887       if (sv_id && sv_id != 0xffff)
 888         {
 889           print_shell_escaped(pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, sv_id));
 890           print_shell_escaped(pci_lookup_name(pacc, sdbuf, sizeof(sdbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id, sv_id, sd_id));
 891         }
 892       else
 893         printf(" \"\" \"\"");
 894       putchar('\n');
 895     }
 896 }
 897
 898 /*** Main show function ***/
 899
 900 void
 901 show_device(struct device *d)
 902 {
 903   if (opt_machine)
 904     show_machine(d);
 905   else
 906     {
 907       if (verbose)
 908         show_verbose(d);
 909       else
 910         show_terse(d);
 911       if (opt_kernel || verbose)
 912         show_kernel(d);
 913     }
 914   if (opt_hex)
 915     show_hex_dump(d);
 916   if (verbose || opt_hex)
 917     putchar('\n');
 918 }
 919
 920 static void
 921 show(void)
 922 {
 923   struct device *d;
 924
 925   for (d=first_dev; d; d=d->next)
 926     show_device(d);
 927 }
 928
 929 /* Main */
 930
 931 int
 932 main(int argc, char **argv)
 933 {
 934   int i;
 935   char *msg;
 936
 937   if (argc == 2 && !strcmp(argv[1], "--version"))
 938     {
 939       puts("lspci version " PCIUTILS_VERSION);
 940       return 0;
 941     }
 942
 943   pacc = pci_alloc();
 944   pacc->error = die;
 945   pci_filter_init(pacc, &filter);
 946
 947   while ((i = getopt(argc, argv, options)) != -1)
 948     switch (i)
 949       {
 950       case 'n':
 951         pacc->numeric_ids++;
 952         break;
 953       case 'v':
 954         verbose++;
 955         break;
 956       case 'b':
 957         pacc->buscentric = 1;
 958         break;
 959       case 's':
 960         if (msg = pci_filter_parse_slot(&filter, optarg))
 961           die("-s: %s", msg);
 962         break;
 963       case 'd':
 964         if (msg = pci_filter_parse_id(&filter, optarg))
 965           die("-d: %s", msg);
 966         break;
 967       case 'x':
 968         opt_hex++;
 969         break;
 970       case 't':
 971         opt_tree++;
 972         break;
 973       case 'i':
 974         pci_set_name_list_path(pacc, optarg, 0);
 975         break;
 976       case 'm':
 977         opt_machine++;
 978         break;
 979       case 'p':
 980         opt_pcimap = optarg;
 981         break;
 982 #ifdef PCI_OS_LINUX
 983       case 'k':
 984         opt_kernel++;
 985         break;
 986 #endif
 987       case 'M':
 988         opt_map_mode++;
 989         break;
 990       case 'D':
 991         opt_domains = 2;
 992         break;
 993 #ifdef PCI_USE_DNS
 994       case 'q':
 995         opt_query_dns++;
 996         break;
 997       case 'Q':
 998         opt_query_all = 1;
 999         break;
1000 #else
1001       case 'q':
1002       case 'Q':
1003         die("DNS queries are not available in this version");
1004 #endif
1005       default:
1006         if (parse_generic_option(i, pacc, optarg))
1007           break;
1008       bad:
1009         fprintf(stderr, help_msg, pacc->id_file_name);
1010         return 1;
1011       }
1012   if (optind < argc)
1013     goto bad;
1014
1015   if (opt_query_dns)
1016     {
1017       pacc->id_lookup_mode |= PCI_LOOKUP_NETWORK;
1018       if (opt_query_dns > 1)
1019         pacc->id_lookup_mode |= PCI_LOOKUP_REFRESH_CACHE;
1020     }
1021   if (opt_query_all)
1022     pacc->id_lookup_mode |= PCI_LOOKUP_NETWORK | PCI_LOOKUP_SKIP_LOCAL;
1023
1024   pci_init(pacc);
1025   if (opt_map_mode)
1026     map_the_bus();
1027   else
1028     {
1029       scan_devices();
1030       sort_them();
1031       if (opt_tree)
1032         show_forest();
1033       else
1034         show();
1035     }
1036   show_kernel_cleanup();
1037   pci_cleanup(pacc);
1038
1039   return (seen_errors ? 2 : 0);
1040 }