usr.sbin/pciconf/cap.c

   1 /*-
   2  * Copyright (c) 2007 Yahoo!, Inc.
   3  * All rights reserved.
   4  * Written by: John Baldwin <jhb@FreeBSD.org>
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. Neither the name of the author nor the names of any co-contributors
  15  *    may be used to endorse or promote products derived from this software
  16  *    without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  */
  30
  31 #ifndef lint
  32 static const char rcsid[] =
  33   "$FreeBSD$";
  34 #endif /* not lint */
  35
  36 #include <sys/types.h>
  37
  38 #include <err.h>
  39 #include <stdio.h>
  40 #include <sys/agpio.h>
  41 #include <sys/pciio.h>
  42
  43 #include <dev/agp/agpreg.h>
  44 #include <dev/pci/pcireg.h>
  45
  46 #include "pciconf.h"
  47
  48 static void
  49 cap_power(int fd, struct pci_conf *p, uint8_t ptr)
  50 {
  51         uint16_t cap, status;
  52
  53         cap = read_config(fd, &p->pc_sel, ptr + PCIR_POWER_CAP, 2);
  54         status = read_config(fd, &p->pc_sel, ptr + PCIR_POWER_STATUS, 2);
  55         printf("powerspec %d  supports D0%s%s D3  current D%d",
  56             cap & PCIM_PCAP_SPEC,
  57             cap & PCIM_PCAP_D1SUPP ? " D1" : "",
  58             cap & PCIM_PCAP_D2SUPP ? " D2" : "",
  59             status & PCIM_PSTAT_DMASK);
  60 }
  61
  62 static void
  63 cap_agp(int fd, struct pci_conf *p, uint8_t ptr)
  64 {
  65         uint32_t status, command;
  66
  67         status = read_config(fd, &p->pc_sel, ptr + AGP_STATUS, 4);
  68         command = read_config(fd, &p->pc_sel, ptr + AGP_CAPID, 4);
  69         printf("AGP ");
  70         if (AGP_MODE_GET_MODE_3(status)) {
  71                 printf("v3 ");
  72                 if (AGP_MODE_GET_RATE(status) & AGP_MODE_V3_RATE_8x)
  73                         printf("8x ");
  74                 if (AGP_MODE_GET_RATE(status) & AGP_MODE_V3_RATE_4x)
  75                         printf("4x ");
  76         } else {
  77                 if (AGP_MODE_GET_RATE(status) & AGP_MODE_V2_RATE_4x)
  78                         printf("4x ");
  79                 if (AGP_MODE_GET_RATE(status) & AGP_MODE_V2_RATE_2x)
  80                         printf("2x ");
  81                 if (AGP_MODE_GET_RATE(status) & AGP_MODE_V2_RATE_1x)
  82                         printf("1x ");
  83         }
  84         if (AGP_MODE_GET_SBA(status))
  85                 printf("SBA ");
  86         if (AGP_MODE_GET_AGP(command)) {
  87                 printf("enabled at ");
  88                 if (AGP_MODE_GET_MODE_3(command)) {
  89                         printf("v3 ");
  90                         switch (AGP_MODE_GET_RATE(command)) {
  91                         case AGP_MODE_V3_RATE_8x:
  92                                 printf("8x ");
  93                                 break;
  94                         case AGP_MODE_V3_RATE_4x:
  95                                 printf("4x ");
  96                                 break;
  97                         }
  98                 } else
  99                         switch (AGP_MODE_GET_RATE(command)) {
 100                         case AGP_MODE_V2_RATE_4x:
 101                                 printf("4x ");
 102                                 break;
 103                         case AGP_MODE_V2_RATE_2x:
 104                                 printf("2x ");
 105                                 break;
 106                         case AGP_MODE_V2_RATE_1x:
 107                                 printf("1x ");
 108                                 break;
 109                         }
 110                 if (AGP_MODE_GET_SBA(command))
 111                         printf("SBA ");
 112         } else
 113                 printf("disabled");
 114 }
 115
 116 static void
 117 cap_vpd(int fd, struct pci_conf *p, uint8_t ptr)
 118 {
 119
 120         printf("VPD");
 121 }
 122
 123 static void
 124 cap_msi(int fd, struct pci_conf *p, uint8_t ptr)
 125 {
 126         uint16_t ctrl;
 127         int msgnum;
 128
 129         ctrl = read_config(fd, &p->pc_sel, ptr + PCIR_MSI_CTRL, 2);
 130         msgnum = 1 << ((ctrl & PCIM_MSICTRL_MMC_MASK) >> 1);
 131         printf("MSI supports %d message%s%s%s ", msgnum,
 132             (msgnum == 1) ? "" : "s",
 133             (ctrl & PCIM_MSICTRL_64BIT) ? ", 64 bit" : "",
 134             (ctrl & PCIM_MSICTRL_VECTOR) ? ", vector masks" : "");
 135         if (ctrl & PCIM_MSICTRL_MSI_ENABLE) {
 136                 msgnum = 1 << ((ctrl & PCIM_MSICTRL_MME_MASK) >> 4);
 137                 printf("enabled with %d message%s", msgnum,
 138                     (msgnum == 1) ? "" : "s");
 139         }
 140 }
 141
 142 static void
 143 cap_pcix(int fd, struct pci_conf *p, uint8_t ptr)
 144 {
 145         uint32_t status;
 146         int comma, max_splits, max_burst_read;
 147
 148         status = read_config(fd, &p->pc_sel, ptr + PCIXR_STATUS, 4);
 149         printf("PCI-X ");
 150         if (status & PCIXM_STATUS_64BIT)
 151                 printf("64-bit ");
 152         if ((p->pc_hdr & PCIM_HDRTYPE) == 1)
 153                 printf("bridge ");
 154         printf("supports");
 155         comma = 0;
 156         if (status & PCIXM_STATUS_133CAP) {
 157                 printf("%s 133MHz", comma ? "," : "");
 158                 comma = 1;
 159         }
 160         if (status & PCIXM_STATUS_266CAP) {
 161                 printf("%s 266MHz", comma ? "," : "");
 162                 comma = 1;
 163         }
 164         if (status & PCIXM_STATUS_533CAP) {
 165                 printf("%s 533MHz", comma ? "," : "");
 166                 comma = 1;
 167         }
 168         if ((p->pc_hdr & PCIM_HDRTYPE) == 1)
 169                 return;
 170         switch (status & PCIXM_STATUS_MAX_READ) {
 171         case PCIXM_STATUS_MAX_READ_512:
 172                 max_burst_read = 512;
 173                 break;
 174         case PCIXM_STATUS_MAX_READ_1024:
 175                 max_burst_read = 1024;
 176                 break;
 177         case PCIXM_STATUS_MAX_READ_2048:
 178                 max_burst_read = 2048;
 179                 break;
 180         case PCIXM_STATUS_MAX_READ_4096:
 181                 max_burst_read = 4096;
 182                 break;
 183         }
 184         switch (status & PCIXM_STATUS_MAX_SPLITS) {
 185         case PCIXM_STATUS_MAX_SPLITS_1:
 186                 max_splits = 1;
 187                 break;
 188         case PCIXM_STATUS_MAX_SPLITS_2:
 189                 max_splits = 2;
 190                 break;
 191         case PCIXM_STATUS_MAX_SPLITS_3:
 192                 max_splits = 3;
 193                 break;
 194         case PCIXM_STATUS_MAX_SPLITS_4:
 195                 max_splits = 4;
 196                 break;
 197         case PCIXM_STATUS_MAX_SPLITS_8:
 198                 max_splits = 8;
 199                 break;
 200         case PCIXM_STATUS_MAX_SPLITS_12:
 201                 max_splits = 12;
 202                 break;
 203         case PCIXM_STATUS_MAX_SPLITS_16:
 204                 max_splits = 16;
 205                 break;
 206         case PCIXM_STATUS_MAX_SPLITS_32:
 207                 max_splits = 32;
 208                 break;
 209         }
 210         printf("%s %d burst read, %d split transaction%s", comma ? "," : "",
 211             max_burst_read, max_splits, max_splits == 1 ? "" : "s");
 212 }
 213
 214 static void
 215 cap_ht(int fd, struct pci_conf *p, uint8_t ptr)
 216 {
 217         uint32_t reg;
 218         uint16_t command;
 219
 220         command = read_config(fd, &p->pc_sel, ptr + PCIR_HT_COMMAND, 2);
 221         printf("HT ");
 222         if ((command & 0xe000) == PCIM_HTCAP_SLAVE)
 223                 printf("slave");
 224         else if ((command & 0xe000) == PCIM_HTCAP_HOST)
 225                 printf("host");
 226         else
 227                 switch (command & PCIM_HTCMD_CAP_MASK) {
 228                 case PCIM_HTCAP_SWITCH:
 229                         printf("switch");
 230                         break;
 231                 case PCIM_HTCAP_INTERRUPT:
 232                         printf("interrupt");
 233                         break;
 234                 case PCIM_HTCAP_REVISION_ID:
 235                         printf("revision ID");
 236                         break;
 237                 case PCIM_HTCAP_UNITID_CLUMPING:
 238                         printf("unit ID clumping");
 239                         break;
 240                 case PCIM_HTCAP_EXT_CONFIG_SPACE:
 241                         printf("extended config space");
 242                         break;
 243                 case PCIM_HTCAP_ADDRESS_MAPPING:
 244                         printf("address mapping");
 245                         break;
 246                 case PCIM_HTCAP_MSI_MAPPING:
 247                         printf("MSI %saddress window %s at 0x",
 248                             command & PCIM_HTCMD_MSI_FIXED ? "fixed " : "",
 249                             command & PCIM_HTCMD_MSI_ENABLE ? "enabled" :
 250                             "disabled");
 251                         if (command & PCIM_HTCMD_MSI_FIXED)
 252                                 printf("fee00000");
 253                         else {
 254                                 reg = read_config(fd, &p->pc_sel,
 255                                     ptr + PCIR_HTMSI_ADDRESS_HI, 4);
 256                                 if (reg != 0)
 257                                         printf("%08x", reg);
 258                                 reg = read_config(fd, &p->pc_sel,
 259                                     ptr + PCIR_HTMSI_ADDRESS_LO, 4);
 260                                 printf("%08x", reg);
 261                         }
 262                         break;
 263                 case PCIM_HTCAP_DIRECT_ROUTE:
 264                         printf("direct route");
 265                         break;
 266                 case PCIM_HTCAP_VCSET:
 267                         printf("VC set");
 268                         break;
 269                 case PCIM_HTCAP_RETRY_MODE:
 270                         printf("retry mode");
 271                         break;
 272                 case PCIM_HTCAP_X86_ENCODING:
 273                         printf("X86 encoding");
 274                         break;
 275                 default:
 276                         printf("unknown %02x", command);
 277                         break;
 278                 }
 279 }
 280
 281 static void
 282 cap_vendor(int fd, struct pci_conf *p, uint8_t ptr)
 283 {
 284         uint8_t length;
 285
 286         length = read_config(fd, &p->pc_sel, ptr + PCIR_VENDOR_LENGTH, 1);
 287         printf("vendor (length %d)", length);
 288         if (p->pc_vendor == 0x8086) {
 289                 /* Intel */
 290                 uint8_t version;
 291
 292                 version = read_config(fd, &p->pc_sel, ptr + PCIR_VENDOR_DATA,
 293                     1);
 294                 printf(" Intel cap %d version %d", version >> 4, version & 0xf);
 295                 if (version >> 4 == 1 && length == 12) {
 296                         /* Feature Detection */
 297                         uint32_t fvec;
 298                         int comma;
 299
 300                         comma = 0;
 301                         fvec = read_config(fd, &p->pc_sel, ptr +
 302                             PCIR_VENDOR_DATA + 5, 4);
 303                         printf("\n\t\t features:");
 304                         if (fvec & (1 << 0)) {
 305                                 printf(" AMT");
 306                                 comma = 1;
 307                         }
 308                         fvec = read_config(fd, &p->pc_sel, ptr +
 309                             PCIR_VENDOR_DATA + 1, 4);
 310                         if (fvec & (1 << 21)) {
 311                                 printf("%s Quick Resume", comma ? "," : "");
 312                                 comma = 1;
 313                         }
 314                         if (fvec & (1 << 18)) {
 315                                 printf("%s SATA RAID-5", comma ? "," : "");
 316                                 comma = 1;
 317                         }
 318                         if (fvec & (1 << 9)) {
 319                                 printf("%s Mobile", comma ? "," : "");
 320                                 comma = 1;
 321                         }
 322                         if (fvec & (1 << 7)) {
 323                                 printf("%s 6 PCI-e x1 slots", comma ? "," : "");
 324                                 comma = 1;
 325                         } else {
 326                                 printf("%s 4 PCI-e x1 slots", comma ? "," : "");
 327                                 comma = 1;
 328                         }
 329                         if (fvec & (1 << 5)) {
 330                                 printf("%s SATA RAID-0/1/10", comma ? "," : "");
 331                                 comma = 1;
 332                         }
 333                         if (fvec & (1 << 3)) {
 334                                 printf("%s SATA AHCI", comma ? "," : "");
 335                                 comma = 1;
 336                         }
 337                 }
 338         }
 339 }
 340
 341 static void
 342 cap_debug(int fd, struct pci_conf *p, uint8_t ptr)
 343 {
 344         uint16_t debug_port;
 345
 346         debug_port = read_config(fd, &p->pc_sel, ptr + PCIR_DEBUG_PORT, 2);
 347         printf("EHCI Debug Port at offset 0x%x in map 0x%x", debug_port &
 348             PCIM_DEBUG_PORT_OFFSET, PCIR_BAR(debug_port >> 13));
 349 }
 350
 351 static void
 352 cap_subvendor(int fd, struct pci_conf *p, uint8_t ptr)
 353 {
 354         uint32_t id;
 355
 356         id = read_config(fd, &p->pc_sel, ptr + PCIR_SUBVENDCAP_ID, 4);
 357         printf("PCI Bridge card=0x%08x", id);
 358 }
 359
 360 static void
 361 cap_express(int fd, struct pci_conf *p, uint8_t ptr)
 362 {
 363         uint16_t flags;
 364
 365         flags = read_config(fd, &p->pc_sel, ptr + PCIR_EXPRESS_FLAGS, 2);
 366         printf("PCI-Express %d ", flags & PCIM_EXP_FLAGS_VERSION);
 367         switch (flags & PCIM_EXP_FLAGS_TYPE) {
 368         case PCIM_EXP_TYPE_ENDPOINT:
 369                 printf("endpoint");
 370                 break;
 371         case PCIM_EXP_TYPE_LEGACY_ENDPOINT:
 372                 printf("legacy endpoint");
 373                 break;
 374         case PCIM_EXP_TYPE_ROOT_PORT:
 375                 printf("root port");
 376                 break;
 377         case PCIM_EXP_TYPE_UPSTREAM_PORT:
 378                 printf("upstream port");
 379                 break;
 380         case PCIM_EXP_TYPE_DOWNSTREAM_PORT:
 381                 printf("downstream port");
 382                 break;
 383         case PCIM_EXP_TYPE_PCI_BRIDGE:
 384                 printf("PCI bridge");
 385                 break;
 386         default:
 387                 printf("type %d", (flags & PCIM_EXP_FLAGS_TYPE) >> 8);
 388                 break;
 389         }
 390         if (flags & PCIM_EXP_FLAGS_IRQ)
 391                 printf(" IRQ %d", (flags & PCIM_EXP_FLAGS_IRQ) >> 17);
 392 }
 393
 394 static void
 395 cap_msix(int fd, struct pci_conf *p, uint8_t ptr)
 396 {
 397         uint32_t val;
 398         uint16_t ctrl;
 399         int msgnum, table_bar, pba_bar;
 400
 401         ctrl = read_config(fd, &p->pc_sel, ptr + PCIR_MSIX_CTRL, 2);
 402         msgnum = (ctrl & PCIM_MSIXCTRL_TABLE_SIZE) + 1;
 403         val = read_config(fd, &p->pc_sel, ptr + PCIR_MSIX_TABLE, 4);
 404         table_bar = PCIR_BAR(val & PCIM_MSIX_BIR_MASK);
 405         val = read_config(fd, &p->pc_sel, ptr + PCIR_MSIX_PBA, 4);
 406         pba_bar = PCIR_BAR(val & PCIM_MSIX_BIR_MASK);
 407         printf("MSI-X supports %d message%s ", msgnum,
 408             (msgnum == 1) ? "" : "s");
 409         if (table_bar == pba_bar)
 410                 printf("in map 0x%x", table_bar);
 411         else
 412                 printf("in maps 0x%x and 0x%x", table_bar, pba_bar);
 413         if (ctrl & PCIM_MSIXCTRL_MSIX_ENABLE)
 414                 printf(" enabled");
 415 }
 416
 417 void
 418 list_caps(int fd, struct pci_conf *p)
 419 {
 420         uint16_t cmd;
 421         uint8_t ptr, cap;
 422
 423         /* Are capabilities present for this device? */
 424         cmd = read_config(fd, &p->pc_sel, PCIR_STATUS, 2);
 425         if (!(cmd & PCIM_STATUS_CAPPRESENT))
 426                 return;
 427
 428         switch (p->pc_hdr & PCIM_HDRTYPE) {
 429         case 0:
 430         case 1:
 431                 ptr = PCIR_CAP_PTR;
 432                 break;
 433         case 2:
 434                 ptr = PCIR_CAP_PTR_2;
 435                 break;
 436         default:
 437                 errx(1, "list_caps: bad header type");
 438         }
 439
 440         /* Walk the capability list. */
 441         ptr = read_config(fd, &p->pc_sel, ptr, 1);
 442         while (ptr != 0 && ptr != 0xff) {
 443                 cap = read_config(fd, &p->pc_sel, ptr + PCICAP_ID, 1);
 444                 printf("    cap %02x[%02x] = ", cap, ptr);
 445                 switch (cap) {
 446                 case PCIY_PMG:
 447                         cap_power(fd, p, ptr);
 448                         break;
 449                 case PCIY_AGP:
 450                         cap_agp(fd, p, ptr);
 451                         break;
 452                 case PCIY_VPD:
 453                         cap_vpd(fd, p, ptr);
 454                         break;
 455                 case PCIY_MSI:
 456                         cap_msi(fd, p, ptr);
 457                         break;
 458                 case PCIY_PCIX:
 459                         cap_pcix(fd, p, ptr);
 460                         break;
 461                 case PCIY_HT:
 462                         cap_ht(fd, p, ptr);
 463                         break;
 464                 case PCIY_VENDOR:
 465                         cap_vendor(fd, p, ptr);
 466                         break;
 467                 case PCIY_DEBUG:
 468                         cap_debug(fd, p, ptr);
 469                         break;
 470                 case PCIY_SUBVENDOR:
 471                         cap_subvendor(fd, p, ptr);
 472                         break;
 473                 case PCIY_EXPRESS:
 474                         cap_express(fd, p, ptr);
 475                         break;
 476                 case PCIY_MSIX:
 477                         cap_msix(fd, p, ptr);
 478                         break;
 479                 default:
 480                         printf("unknown");
 481                         break;
 482                 }
 483                 printf("\n");
 484                 ptr = read_config(fd, &p->pc_sel, ptr + PCICAP_NEXTPTR, 1);
 485         }
 486 }