1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2007 Yahoo!, Inc. 5 * All rights reserved. 6 * Written by: John Baldwin <jhb@FreeBSD.org> 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #ifndef lint 34 static const char rcsid[] = 35 "$FreeBSD$"; 36 #endif /* not lint */ 37 38 #include <sys/types.h> 39 40 #include <err.h> 41 #include <stdio.h> 42 #include <strings.h> 43 #include <sys/agpio.h> 44 #include <sys/pciio.h> 45 46 #include <dev/agp/agpreg.h> 47 #include <dev/pci/pcireg.h> 48 49 #include "pciconf.h" 50 51 static void list_ecaps(int fd, struct pci_conf *p); 52 53 static void 54 cap_power(int fd, struct pci_conf *p, uint8_t ptr) 55 { 56 uint16_t cap, status; 57 58 cap = read_config(fd, &p->pc_sel, ptr + PCIR_POWER_CAP, 2); 59 status = read_config(fd, &p->pc_sel, ptr + PCIR_POWER_STATUS, 2); 60 printf("powerspec %d supports D0%s%s D3 current D%d", 61 cap & PCIM_PCAP_SPEC, 62 cap & PCIM_PCAP_D1SUPP ? " D1" : "", 63 cap & PCIM_PCAP_D2SUPP ? " D2" : "", 64 status & PCIM_PSTAT_DMASK); 65 } 66 67 static void 68 cap_agp(int fd, struct pci_conf *p, uint8_t ptr) 69 { 70 uint32_t status, command; 71 72 status = read_config(fd, &p->pc_sel, ptr + AGP_STATUS, 4); 73 command = read_config(fd, &p->pc_sel, ptr + AGP_CAPID, 4); 74 printf("AGP "); 75 if (AGP_MODE_GET_MODE_3(status)) { 76 printf("v3 "); 77 if (AGP_MODE_GET_RATE(status) & AGP_MODE_V3_RATE_8x) 78 printf("8x "); 79 if (AGP_MODE_GET_RATE(status) & AGP_MODE_V3_RATE_4x) 80 printf("4x "); 81 } else { 82 if (AGP_MODE_GET_RATE(status) & AGP_MODE_V2_RATE_4x) 83 printf("4x "); 84 if (AGP_MODE_GET_RATE(status) & AGP_MODE_V2_RATE_2x) 85 printf("2x "); 86 if (AGP_MODE_GET_RATE(status) & AGP_MODE_V2_RATE_1x) 87 printf("1x "); 88 } 89 if (AGP_MODE_GET_SBA(status)) 90 printf("SBA "); 91 if (AGP_MODE_GET_AGP(command)) { 92 printf("enabled at "); 93 if (AGP_MODE_GET_MODE_3(command)) { 94 printf("v3 "); 95 switch (AGP_MODE_GET_RATE(command)) { 96 case AGP_MODE_V3_RATE_8x: 97 printf("8x "); 98 break; 99 case AGP_MODE_V3_RATE_4x: 100 printf("4x "); 101 break; 102 } 103 } else 104 switch (AGP_MODE_GET_RATE(command)) { 105 case AGP_MODE_V2_RATE_4x: 106 printf("4x "); 107 break; 108 case AGP_MODE_V2_RATE_2x: 109 printf("2x "); 110 break; 111 case AGP_MODE_V2_RATE_1x: 112 printf("1x "); 113 break; 114 } 115 if (AGP_MODE_GET_SBA(command)) 116 printf("SBA "); 117 } else 118 printf("disabled"); 119 } 120 121 static void 122 cap_vpd(int fd __unused, struct pci_conf *p __unused, uint8_t ptr __unused) 123 { 124 125 printf("VPD"); 126 } 127 128 static void 129 cap_msi(int fd, struct pci_conf *p, uint8_t ptr) 130 { 131 uint16_t ctrl; 132 int msgnum; 133 134 ctrl = read_config(fd, &p->pc_sel, ptr + PCIR_MSI_CTRL, 2); 135 msgnum = 1 << ((ctrl & PCIM_MSICTRL_MMC_MASK) >> 1); 136 printf("MSI supports %d message%s%s%s ", msgnum, 137 (msgnum == 1) ? "" : "s", 138 (ctrl & PCIM_MSICTRL_64BIT) ? ", 64 bit" : "", 139 (ctrl & PCIM_MSICTRL_VECTOR) ? ", vector masks" : ""); 140 if (ctrl & PCIM_MSICTRL_MSI_ENABLE) { 141 msgnum = 1 << ((ctrl & PCIM_MSICTRL_MME_MASK) >> 4); 142 printf("enabled with %d message%s", msgnum, 143 (msgnum == 1) ? "" : "s"); 144 } 145 } 146 147 static void 148 cap_pcix(int fd, struct pci_conf *p, uint8_t ptr) 149 { 150 uint32_t status; 151 int comma, max_splits, max_burst_read; 152 153 status = read_config(fd, &p->pc_sel, ptr + PCIXR_STATUS, 4); 154 printf("PCI-X "); 155 if (status & PCIXM_STATUS_64BIT) 156 printf("64-bit "); 157 if ((p->pc_hdr & PCIM_HDRTYPE) == 1) 158 printf("bridge "); 159 if ((p->pc_hdr & PCIM_HDRTYPE) != 1 || (status & (PCIXM_STATUS_133CAP | 160 PCIXM_STATUS_266CAP | PCIXM_STATUS_533CAP)) != 0) 161 printf("supports"); 162 comma = 0; 163 if (status & PCIXM_STATUS_133CAP) { 164 printf(" 133MHz"); 165 comma = 1; 166 } 167 if (status & PCIXM_STATUS_266CAP) { 168 printf("%s 266MHz", comma ? "," : ""); 169 comma = 1; 170 } 171 if (status & PCIXM_STATUS_533CAP) { 172 printf("%s 533MHz", comma ? "," : ""); 173 comma = 1; 174 } 175 if ((p->pc_hdr & PCIM_HDRTYPE) == 1) 176 return; 177 max_burst_read = 0; 178 switch (status & PCIXM_STATUS_MAX_READ) { 179 case PCIXM_STATUS_MAX_READ_512: 180 max_burst_read = 512; 181 break; 182 case PCIXM_STATUS_MAX_READ_1024: 183 max_burst_read = 1024; 184 break; 185 case PCIXM_STATUS_MAX_READ_2048: 186 max_burst_read = 2048; 187 break; 188 case PCIXM_STATUS_MAX_READ_4096: 189 max_burst_read = 4096; 190 break; 191 } 192 max_splits = 0; 193 switch (status & PCIXM_STATUS_MAX_SPLITS) { 194 case PCIXM_STATUS_MAX_SPLITS_1: 195 max_splits = 1; 196 break; 197 case PCIXM_STATUS_MAX_SPLITS_2: 198 max_splits = 2; 199 break; 200 case PCIXM_STATUS_MAX_SPLITS_3: 201 max_splits = 3; 202 break; 203 case PCIXM_STATUS_MAX_SPLITS_4: 204 max_splits = 4; 205 break; 206 case PCIXM_STATUS_MAX_SPLITS_8: 207 max_splits = 8; 208 break; 209 case PCIXM_STATUS_MAX_SPLITS_12: 210 max_splits = 12; 211 break; 212 case PCIXM_STATUS_MAX_SPLITS_16: 213 max_splits = 16; 214 break; 215 case PCIXM_STATUS_MAX_SPLITS_32: 216 max_splits = 32; 217 break; 218 } 219 printf("%s %d burst read, %d split transaction%s", comma ? "," : "", 220 max_burst_read, max_splits, max_splits == 1 ? "" : "s"); 221 } 222 223 static void 224 cap_ht(int fd, struct pci_conf *p, uint8_t ptr) 225 { 226 uint32_t reg; 227 uint16_t command; 228 229 command = read_config(fd, &p->pc_sel, ptr + PCIR_HT_COMMAND, 2); 230 printf("HT "); 231 if ((command & 0xe000) == PCIM_HTCAP_SLAVE) 232 printf("slave"); 233 else if ((command & 0xe000) == PCIM_HTCAP_HOST) 234 printf("host"); 235 else 236 switch (command & PCIM_HTCMD_CAP_MASK) { 237 case PCIM_HTCAP_SWITCH: 238 printf("switch"); 239 break; 240 case PCIM_HTCAP_INTERRUPT: 241 printf("interrupt"); 242 break; 243 case PCIM_HTCAP_REVISION_ID: 244 printf("revision ID"); 245 break; 246 case PCIM_HTCAP_UNITID_CLUMPING: 247 printf("unit ID clumping"); 248 break; 249 case PCIM_HTCAP_EXT_CONFIG_SPACE: 250 printf("extended config space"); 251 break; 252 case PCIM_HTCAP_ADDRESS_MAPPING: 253 printf("address mapping"); 254 break; 255 case PCIM_HTCAP_MSI_MAPPING: 256 printf("MSI %saddress window %s at 0x", 257 command & PCIM_HTCMD_MSI_FIXED ? "fixed " : "", 258 command & PCIM_HTCMD_MSI_ENABLE ? "enabled" : 259 "disabled"); 260 if (command & PCIM_HTCMD_MSI_FIXED) 261 printf("fee00000"); 262 else { 263 reg = read_config(fd, &p->pc_sel, 264 ptr + PCIR_HTMSI_ADDRESS_HI, 4); 265 if (reg != 0) 266 printf("%08x", reg); 267 reg = read_config(fd, &p->pc_sel, 268 ptr + PCIR_HTMSI_ADDRESS_LO, 4); 269 printf("%08x", reg); 270 } 271 break; 272 case PCIM_HTCAP_DIRECT_ROUTE: 273 printf("direct route"); 274 break; 275 case PCIM_HTCAP_VCSET: 276 printf("VC set"); 277 break; 278 case PCIM_HTCAP_RETRY_MODE: 279 printf("retry mode"); 280 break; 281 case PCIM_HTCAP_X86_ENCODING: 282 printf("X86 encoding"); 283 break; 284 case PCIM_HTCAP_GEN3: 285 printf("Gen3"); 286 break; 287 case PCIM_HTCAP_FLE: 288 printf("function-level extension"); 289 break; 290 case PCIM_HTCAP_PM: 291 printf("power management"); 292 break; 293 case PCIM_HTCAP_HIGH_NODE_COUNT: 294 printf("high node count"); 295 break; 296 default: 297 printf("unknown %02x", command); 298 break; 299 } 300 } 301 302 static void 303 cap_vendor(int fd, struct pci_conf *p, uint8_t ptr) 304 { 305 uint8_t length; 306 307 length = read_config(fd, &p->pc_sel, ptr + PCIR_VENDOR_LENGTH, 1); 308 printf("vendor (length %d)", length); 309 if (p->pc_vendor == 0x8086) { 310 /* Intel */ 311 uint8_t version; 312 313 version = read_config(fd, &p->pc_sel, ptr + PCIR_VENDOR_DATA, 314 1); 315 printf(" Intel cap %d version %d", version >> 4, version & 0xf); 316 if (version >> 4 == 1 && length == 12) { 317 /* Feature Detection */ 318 uint32_t fvec; 319 int comma; 320 321 comma = 0; 322 fvec = read_config(fd, &p->pc_sel, ptr + 323 PCIR_VENDOR_DATA + 5, 4); 324 printf("\n\t\t features:"); 325 if (fvec & (1 << 0)) { 326 printf(" AMT"); 327 comma = 1; 328 } 329 fvec = read_config(fd, &p->pc_sel, ptr + 330 PCIR_VENDOR_DATA + 1, 4); 331 if (fvec & (1 << 21)) { 332 printf("%s Quick Resume", comma ? "," : ""); 333 comma = 1; 334 } 335 if (fvec & (1 << 18)) { 336 printf("%s SATA RAID-5", comma ? "," : ""); 337 comma = 1; 338 } 339 if (fvec & (1 << 9)) { 340 printf("%s Mobile", comma ? "," : ""); 341 comma = 1; 342 } 343 if (fvec & (1 << 7)) { 344 printf("%s 6 PCI-e x1 slots", comma ? "," : ""); 345 comma = 1; 346 } else { 347 printf("%s 4 PCI-e x1 slots", comma ? "," : ""); 348 comma = 1; 349 } 350 if (fvec & (1 << 5)) { 351 printf("%s SATA RAID-0/1/10", comma ? "," : ""); 352 comma = 1; 353 } 354 if (fvec & (1 << 3)) 355 printf(", SATA AHCI"); 356 } 357 } 358 } 359 360 static void 361 cap_debug(int fd, struct pci_conf *p, uint8_t ptr) 362 { 363 uint16_t debug_port; 364 365 debug_port = read_config(fd, &p->pc_sel, ptr + PCIR_DEBUG_PORT, 2); 366 printf("EHCI Debug Port at offset 0x%x in map 0x%x", debug_port & 367 PCIM_DEBUG_PORT_OFFSET, PCIR_BAR(debug_port >> 13)); 368 } 369 370 static void 371 cap_subvendor(int fd, struct pci_conf *p, uint8_t ptr) 372 { 373 uint32_t id; 374 uint16_t ssid, ssvid; 375 376 id = read_config(fd, &p->pc_sel, ptr + PCIR_SUBVENDCAP_ID, 4); 377 ssid = id >> 16; 378 ssvid = id & 0xffff; 379 printf("PCI Bridge subvendor=0x%04x subdevice=0x%04x", ssvid, ssid); 380 } 381 382 #define MAX_PAYLOAD(field) (128 << (field)) 383 384 static const char * 385 link_speed_string(uint8_t speed) 386 { 387 388 switch (speed) { 389 case 1: 390 return ("2.5"); 391 case 2: 392 return ("5.0"); 393 case 3: 394 return ("8.0"); 395 case 4: 396 return ("16.0"); 397 default: 398 return ("undef"); 399 } 400 } 401 402 static const char * 403 aspm_string(uint8_t aspm) 404 { 405 406 switch (aspm) { 407 case 1: 408 return ("L0s"); 409 case 2: 410 return ("L1"); 411 case 3: 412 return ("L0s/L1"); 413 default: 414 return ("disabled"); 415 } 416 } 417 418 static int 419 slot_power(uint32_t cap) 420 { 421 int mwatts; 422 423 mwatts = (cap & PCIEM_SLOT_CAP_SPLV) >> 7; 424 switch (cap & PCIEM_SLOT_CAP_SPLS) { 425 case 0x0: 426 mwatts *= 1000; 427 break; 428 case 0x1: 429 mwatts *= 100; 430 break; 431 case 0x2: 432 mwatts *= 10; 433 break; 434 default: 435 break; 436 } 437 return (mwatts); 438 } 439 440 static void 441 cap_express(int fd, struct pci_conf *p, uint8_t ptr) 442 { 443 uint32_t cap; 444 uint16_t ctl, flags, sta; 445 unsigned int version; 446 447 flags = read_config(fd, &p->pc_sel, ptr + PCIER_FLAGS, 2); 448 version = flags & PCIEM_FLAGS_VERSION; 449 printf("PCI-Express %u ", version); 450 switch (flags & PCIEM_FLAGS_TYPE) { 451 case PCIEM_TYPE_ENDPOINT: 452 printf("endpoint"); 453 break; 454 case PCIEM_TYPE_LEGACY_ENDPOINT: 455 printf("legacy endpoint"); 456 break; 457 case PCIEM_TYPE_ROOT_PORT: 458 printf("root port"); 459 break; 460 case PCIEM_TYPE_UPSTREAM_PORT: 461 printf("upstream port"); 462 break; 463 case PCIEM_TYPE_DOWNSTREAM_PORT: 464 printf("downstream port"); 465 break; 466 case PCIEM_TYPE_PCI_BRIDGE: 467 printf("PCI bridge"); 468 break; 469 case PCIEM_TYPE_PCIE_BRIDGE: 470 printf("PCI to PCIe bridge"); 471 break; 472 case PCIEM_TYPE_ROOT_INT_EP: 473 printf("root endpoint"); 474 break; 475 case PCIEM_TYPE_ROOT_EC: 476 printf("event collector"); 477 break; 478 default: 479 printf("type %d", (flags & PCIEM_FLAGS_TYPE) >> 4); 480 break; 481 } 482 if (flags & PCIEM_FLAGS_IRQ) 483 printf(" MSI %d", (flags & PCIEM_FLAGS_IRQ) >> 9); 484 cap = read_config(fd, &p->pc_sel, ptr + PCIER_DEVICE_CAP, 4); 485 ctl = read_config(fd, &p->pc_sel, ptr + PCIER_DEVICE_CTL, 2); 486 printf(" max data %d(%d)", 487 MAX_PAYLOAD((ctl & PCIEM_CTL_MAX_PAYLOAD) >> 5), 488 MAX_PAYLOAD(cap & PCIEM_CAP_MAX_PAYLOAD)); 489 if ((cap & PCIEM_CAP_FLR) != 0) 490 printf(" FLR"); 491 if (ctl & PCIEM_CTL_RELAXED_ORD_ENABLE) 492 printf(" RO"); 493 if (ctl & PCIEM_CTL_NOSNOOP_ENABLE) 494 printf(" NS"); 495 if (version >= 2) { 496 cap = read_config(fd, &p->pc_sel, ptr + PCIER_DEVICE_CAP2, 4); 497 if ((cap & PCIEM_CAP2_ARI) != 0) { 498 ctl = read_config(fd, &p->pc_sel, 499 ptr + PCIER_DEVICE_CTL2, 4); 500 printf(" ARI %s", 501 (ctl & PCIEM_CTL2_ARI) ? "enabled" : "disabled"); 502 } 503 } 504 cap = read_config(fd, &p->pc_sel, ptr + PCIER_LINK_CAP, 4); 505 sta = read_config(fd, &p->pc_sel, ptr + PCIER_LINK_STA, 2); 506 if (cap == 0 && sta == 0) 507 return; 508 printf("\n "); 509 printf(" link x%d(x%d)", (sta & PCIEM_LINK_STA_WIDTH) >> 4, 510 (cap & PCIEM_LINK_CAP_MAX_WIDTH) >> 4); 511 if ((cap & PCIEM_LINK_CAP_MAX_WIDTH) != 0) { 512 printf(" speed %s(%s)", (sta & PCIEM_LINK_STA_WIDTH) == 0 ? 513 "0.0" : link_speed_string(sta & PCIEM_LINK_STA_SPEED), 514 link_speed_string(cap & PCIEM_LINK_CAP_MAX_SPEED)); 515 } 516 if ((cap & PCIEM_LINK_CAP_ASPM) != 0) { 517 ctl = read_config(fd, &p->pc_sel, ptr + PCIER_LINK_CTL, 2); 518 printf(" ASPM %s(%s)", aspm_string(ctl & PCIEM_LINK_CTL_ASPMC), 519 aspm_string((cap & PCIEM_LINK_CAP_ASPM) >> 10)); 520 } 521 if ((cap & PCIEM_LINK_CAP_CLOCK_PM) != 0) { 522 ctl = read_config(fd, &p->pc_sel, ptr + PCIER_LINK_CTL, 2); 523 printf(" ClockPM %s", (ctl & PCIEM_LINK_CTL_ECPM) ? 524 "enabled" : "disabled"); 525 } 526 if (!(flags & PCIEM_FLAGS_SLOT)) 527 return; 528 cap = read_config(fd, &p->pc_sel, ptr + PCIER_SLOT_CAP, 4); 529 sta = read_config(fd, &p->pc_sel, ptr + PCIER_SLOT_STA, 2); 530 ctl = read_config(fd, &p->pc_sel, ptr + PCIER_SLOT_CTL, 2); 531 printf("\n "); 532 printf(" slot %d", (cap & PCIEM_SLOT_CAP_PSN) >> 19); 533 printf(" power limit %d mW", slot_power(cap)); 534 if (cap & PCIEM_SLOT_CAP_HPC) 535 printf(" HotPlug(%s)", sta & PCIEM_SLOT_STA_PDS ? "present" : 536 "empty"); 537 if (cap & PCIEM_SLOT_CAP_HPS) 538 printf(" surprise"); 539 if (cap & PCIEM_SLOT_CAP_APB) 540 printf(" Attn Button"); 541 if (cap & PCIEM_SLOT_CAP_PCP) 542 printf(" PC(%s)", ctl & PCIEM_SLOT_CTL_PCC ? "off" : "on"); 543 if (cap & PCIEM_SLOT_CAP_MRLSP) 544 printf(" MRL(%s)", sta & PCIEM_SLOT_STA_MRLSS ? "open" : 545 "closed"); 546 if (cap & PCIEM_SLOT_CAP_EIP) 547 printf(" EI(%s)", sta & PCIEM_SLOT_STA_EIS ? "engaged" : 548 "disengaged"); 549 } 550 551 static void 552 cap_msix(int fd, struct pci_conf *p, uint8_t ptr) 553 { 554 uint32_t pba_offset, table_offset, val; 555 int msgnum, pba_bar, table_bar; 556 uint16_t ctrl; 557 558 ctrl = read_config(fd, &p->pc_sel, ptr + PCIR_MSIX_CTRL, 2); 559 msgnum = (ctrl & PCIM_MSIXCTRL_TABLE_SIZE) + 1; 560 561 val = read_config(fd, &p->pc_sel, ptr + PCIR_MSIX_TABLE, 4); 562 table_bar = PCIR_BAR(val & PCIM_MSIX_BIR_MASK); 563 table_offset = val & ~PCIM_MSIX_BIR_MASK; 564 565 val = read_config(fd, &p->pc_sel, ptr + PCIR_MSIX_PBA, 4); 566 pba_bar = PCIR_BAR(val & PCIM_MSIX_BIR_MASK); 567 pba_offset = val & ~PCIM_MSIX_BIR_MASK; 568 569 printf("MSI-X supports %d message%s%s\n", msgnum, 570 (msgnum == 1) ? "" : "s", 571 (ctrl & PCIM_MSIXCTRL_MSIX_ENABLE) ? ", enabled" : ""); 572 573 printf(" "); 574 printf("Table in map 0x%x[0x%x], PBA in map 0x%x[0x%x]", 575 table_bar, table_offset, pba_bar, pba_offset); 576 } 577 578 static void 579 cap_sata(int fd __unused, struct pci_conf *p __unused, uint8_t ptr __unused) 580 { 581 582 printf("SATA Index-Data Pair"); 583 } 584 585 static void 586 cap_pciaf(int fd, struct pci_conf *p, uint8_t ptr) 587 { 588 uint8_t cap; 589 590 cap = read_config(fd, &p->pc_sel, ptr + PCIR_PCIAF_CAP, 1); 591 printf("PCI Advanced Features:%s%s", 592 cap & PCIM_PCIAFCAP_FLR ? " FLR" : "", 593 cap & PCIM_PCIAFCAP_TP ? " TP" : ""); 594 } 595 596 static const char * 597 ea_bei_to_name(int bei) 598 { 599 static const char *barstr[] = { 600 "BAR0", "BAR1", "BAR2", "BAR3", "BAR4", "BAR5" 601 }; 602 static const char *vfbarstr[] = { 603 "VFBAR0", "VFBAR1", "VFBAR2", "VFBAR3", "VFBAR4", "VFBAR5" 604 }; 605 606 if ((bei >= PCIM_EA_BEI_BAR_0) && (bei <= PCIM_EA_BEI_BAR_5)) 607 return (barstr[bei - PCIM_EA_BEI_BAR_0]); 608 if ((bei >= PCIM_EA_BEI_VF_BAR_0) && (bei <= PCIM_EA_BEI_VF_BAR_5)) 609 return (vfbarstr[bei - PCIM_EA_BEI_VF_BAR_0]); 610 611 switch (bei) { 612 case PCIM_EA_BEI_BRIDGE: 613 return "BRIDGE"; 614 case PCIM_EA_BEI_ENI: 615 return "ENI"; 616 case PCIM_EA_BEI_ROM: 617 return "ROM"; 618 case PCIM_EA_BEI_RESERVED: 619 default: 620 return "RSVD"; 621 } 622 } 623 624 static const char * 625 ea_prop_to_name(uint8_t prop) 626 { 627 628 switch (prop) { 629 case PCIM_EA_P_MEM: 630 return "Non-Prefetchable Memory"; 631 case PCIM_EA_P_MEM_PREFETCH: 632 return "Prefetchable Memory"; 633 case PCIM_EA_P_IO: 634 return "I/O Space"; 635 case PCIM_EA_P_VF_MEM_PREFETCH: 636 return "VF Prefetchable Memory"; 637 case PCIM_EA_P_VF_MEM: 638 return "VF Non-Prefetchable Memory"; 639 case PCIM_EA_P_BRIDGE_MEM: 640 return "Bridge Non-Prefetchable Memory"; 641 case PCIM_EA_P_BRIDGE_MEM_PREFETCH: 642 return "Bridge Prefetchable Memory"; 643 case PCIM_EA_P_BRIDGE_IO: 644 return "Bridge I/O Space"; 645 case PCIM_EA_P_MEM_RESERVED: 646 return "Reserved Memory"; 647 case PCIM_EA_P_IO_RESERVED: 648 return "Reserved I/O Space"; 649 case PCIM_EA_P_UNAVAILABLE: 650 return "Unavailable"; 651 default: 652 return "Reserved"; 653 } 654 } 655 656 static void 657 cap_ea(int fd, struct pci_conf *p, uint8_t ptr) 658 { 659 int num_ent; 660 int a, b; 661 uint32_t bei; 662 uint32_t val; 663 int ent_size; 664 uint32_t dw[4]; 665 uint32_t flags, flags_pp, flags_sp; 666 uint64_t base, max_offset; 667 uint8_t fixed_sub_bus_nr, fixed_sec_bus_nr; 668 669 /* Determine the number of entries */ 670 num_ent = read_config(fd, &p->pc_sel, ptr + PCIR_EA_NUM_ENT, 2); 671 num_ent &= PCIM_EA_NUM_ENT_MASK; 672 673 printf("PCI Enhanced Allocation (%d entries)", num_ent); 674 675 /* Find the first entry to care of */ 676 ptr += PCIR_EA_FIRST_ENT; 677 678 /* Print BUS numbers for bridges */ 679 if ((p->pc_hdr & PCIM_HDRTYPE) == PCIM_HDRTYPE_BRIDGE) { 680 val = read_config(fd, &p->pc_sel, ptr, 4); 681 682 fixed_sec_bus_nr = PCIM_EA_SEC_NR(val); 683 fixed_sub_bus_nr = PCIM_EA_SUB_NR(val); 684 685 printf("\n\t\t BRIDGE, sec bus [%d], sub bus [%d]", 686 fixed_sec_bus_nr, fixed_sub_bus_nr); 687 ptr += 4; 688 } 689 690 for (a = 0; a < num_ent; a++) { 691 /* Read a number of dwords in the entry */ 692 val = read_config(fd, &p->pc_sel, ptr, 4); 693 ptr += 4; 694 ent_size = (val & PCIM_EA_ES); 695 696 for (b = 0; b < ent_size; b++) { 697 dw[b] = read_config(fd, &p->pc_sel, ptr, 4); 698 ptr += 4; 699 } 700 701 flags = val; 702 flags_pp = (flags & PCIM_EA_PP) >> PCIM_EA_PP_OFFSET; 703 flags_sp = (flags & PCIM_EA_SP) >> PCIM_EA_SP_OFFSET; 704 bei = (PCIM_EA_BEI & val) >> PCIM_EA_BEI_OFFSET; 705 706 base = dw[0] & PCIM_EA_FIELD_MASK; 707 max_offset = dw[1] | ~PCIM_EA_FIELD_MASK; 708 b = 2; 709 if (((dw[0] & PCIM_EA_IS_64) != 0) && (b < ent_size)) { 710 base |= (uint64_t)dw[b] << 32UL; 711 b++; 712 } 713 if (((dw[1] & PCIM_EA_IS_64) != 0) 714 && (b < ent_size)) { 715 max_offset |= (uint64_t)dw[b] << 32UL; 716 b++; 717 } 718 719 printf("\n\t\t [%d] %s, %s, %s, base [0x%jx], size [0x%jx]" 720 "\n\t\t\tPrimary properties [0x%x] (%s)" 721 "\n\t\t\tSecondary properties [0x%x] (%s)", 722 bei, ea_bei_to_name(bei), 723 (flags & PCIM_EA_ENABLE ? "Enabled" : "Disabled"), 724 (flags & PCIM_EA_WRITABLE ? "Writable" : "Read-only"), 725 (uintmax_t)base, (uintmax_t)(max_offset + 1), 726 flags_pp, ea_prop_to_name(flags_pp), 727 flags_sp, ea_prop_to_name(flags_sp)); 728 } 729 } 730 731 void 732 list_caps(int fd, struct pci_conf *p) 733 { 734 int express; 735 uint16_t sta; 736 uint8_t ptr, cap; 737 738 /* Are capabilities present for this device? */ 739 sta = read_config(fd, &p->pc_sel, PCIR_STATUS, 2); 740 if (!(sta & PCIM_STATUS_CAPPRESENT)) 741 return; 742 743 switch (p->pc_hdr & PCIM_HDRTYPE) { 744 case PCIM_HDRTYPE_NORMAL: 745 case PCIM_HDRTYPE_BRIDGE: 746 ptr = PCIR_CAP_PTR; 747 break; 748 case PCIM_HDRTYPE_CARDBUS: 749 ptr = PCIR_CAP_PTR_2; 750 break; 751 default: 752 errx(1, "list_caps: bad header type"); 753 } 754 755 /* Walk the capability list. */ 756 express = 0; 757 ptr = read_config(fd, &p->pc_sel, ptr, 1); 758 while (ptr != 0 && ptr != 0xff) { 759 cap = read_config(fd, &p->pc_sel, ptr + PCICAP_ID, 1); 760 printf(" cap %02x[%02x] = ", cap, ptr); 761 switch (cap) { 762 case PCIY_PMG: 763 cap_power(fd, p, ptr); 764 break; 765 case PCIY_AGP: 766 cap_agp(fd, p, ptr); 767 break; 768 case PCIY_VPD: 769 cap_vpd(fd, p, ptr); 770 break; 771 case PCIY_MSI: 772 cap_msi(fd, p, ptr); 773 break; 774 case PCIY_PCIX: 775 cap_pcix(fd, p, ptr); 776 break; 777 case PCIY_HT: 778 cap_ht(fd, p, ptr); 779 break; 780 case PCIY_VENDOR: 781 cap_vendor(fd, p, ptr); 782 break; 783 case PCIY_DEBUG: 784 cap_debug(fd, p, ptr); 785 break; 786 case PCIY_SUBVENDOR: 787 cap_subvendor(fd, p, ptr); 788 break; 789 case PCIY_EXPRESS: 790 express = 1; 791 cap_express(fd, p, ptr); 792 break; 793 case PCIY_MSIX: 794 cap_msix(fd, p, ptr); 795 break; 796 case PCIY_SATA: 797 cap_sata(fd, p, ptr); 798 break; 799 case PCIY_PCIAF: 800 cap_pciaf(fd, p, ptr); 801 break; 802 case PCIY_EA: 803 cap_ea(fd, p, ptr); 804 break; 805 default: 806 printf("unknown"); 807 break; 808 } 809 printf("\n"); 810 ptr = read_config(fd, &p->pc_sel, ptr + PCICAP_NEXTPTR, 1); 811 } 812 813 if (express) 814 list_ecaps(fd, p); 815 } 816 817 /* From <sys/systm.h>. */ 818 static __inline uint32_t 819 bitcount32(uint32_t x) 820 { 821 822 x = (x & 0x55555555) + ((x & 0xaaaaaaaa) >> 1); 823 x = (x & 0x33333333) + ((x & 0xcccccccc) >> 2); 824 x = (x + (x >> 4)) & 0x0f0f0f0f; 825 x = (x + (x >> 8)); 826 x = (x + (x >> 16)) & 0x000000ff; 827 return (x); 828 } 829 830 static void 831 ecap_aer(int fd, struct pci_conf *p, uint16_t ptr, uint8_t ver) 832 { 833 uint32_t sta, mask; 834 835 printf("AER %d", ver); 836 if (ver < 1) 837 return; 838 sta = read_config(fd, &p->pc_sel, ptr + PCIR_AER_UC_STATUS, 4); 839 mask = read_config(fd, &p->pc_sel, ptr + PCIR_AER_UC_SEVERITY, 4); 840 printf(" %d fatal", bitcount32(sta & mask)); 841 printf(" %d non-fatal", bitcount32(sta & ~mask)); 842 sta = read_config(fd, &p->pc_sel, ptr + PCIR_AER_COR_STATUS, 4); 843 printf(" %d corrected\n", bitcount32(sta)); 844 } 845 846 static void 847 ecap_vc(int fd, struct pci_conf *p, uint16_t ptr, uint8_t ver) 848 { 849 uint32_t cap1; 850 851 printf("VC %d", ver); 852 if (ver < 1) 853 return; 854 cap1 = read_config(fd, &p->pc_sel, ptr + PCIR_VC_CAP1, 4); 855 printf(" max VC%d", cap1 & PCIM_VC_CAP1_EXT_COUNT); 856 if ((cap1 & PCIM_VC_CAP1_LOWPRI_EXT_COUNT) != 0) 857 printf(" lowpri VC0-VC%d", 858 (cap1 & PCIM_VC_CAP1_LOWPRI_EXT_COUNT) >> 4); 859 printf("\n"); 860 } 861 862 static void 863 ecap_sernum(int fd, struct pci_conf *p, uint16_t ptr, uint8_t ver) 864 { 865 uint32_t high, low; 866 867 printf("Serial %d", ver); 868 if (ver < 1) 869 return; 870 low = read_config(fd, &p->pc_sel, ptr + PCIR_SERIAL_LOW, 4); 871 high = read_config(fd, &p->pc_sel, ptr + PCIR_SERIAL_HIGH, 4); 872 printf(" %08x%08x\n", high, low); 873 } 874 875 static void 876 ecap_vendor(int fd, struct pci_conf *p, uint16_t ptr, uint8_t ver) 877 { 878 uint32_t val; 879 880 printf("Vendor %d", ver); 881 if (ver < 1) 882 return; 883 val = read_config(fd, &p->pc_sel, ptr + 4, 4); 884 printf(" ID %d\n", val & 0xffff); 885 } 886 887 static void 888 ecap_sec_pcie(int fd, struct pci_conf *p, uint16_t ptr, uint8_t ver) 889 { 890 uint32_t val; 891 892 printf("PCIe Sec %d", ver); 893 if (ver < 1) 894 return; 895 val = read_config(fd, &p->pc_sel, ptr + 8, 4); 896 printf(" lane errors %#x\n", val); 897 } 898 899 static const char * 900 check_enabled(int value) 901 { 902 903 return (value ? "enabled" : "disabled"); 904 } 905 906 static void 907 ecap_sriov(int fd, struct pci_conf *p, uint16_t ptr, uint8_t ver) 908 { 909 const char *comma, *enabled; 910 uint16_t iov_ctl, total_vfs, num_vfs, vf_offset, vf_stride, vf_did; 911 uint32_t page_caps, page_size, page_shift, size; 912 int i; 913 914 printf("SR-IOV %d ", ver); 915 916 iov_ctl = read_config(fd, &p->pc_sel, ptr + PCIR_SRIOV_CTL, 2); 917 printf("IOV %s, Memory Space %s, ARI %s\n", 918 check_enabled(iov_ctl & PCIM_SRIOV_VF_EN), 919 check_enabled(iov_ctl & PCIM_SRIOV_VF_MSE), 920 check_enabled(iov_ctl & PCIM_SRIOV_ARI_EN)); 921 922 total_vfs = read_config(fd, &p->pc_sel, ptr + PCIR_SRIOV_TOTAL_VFS, 2); 923 num_vfs = read_config(fd, &p->pc_sel, ptr + PCIR_SRIOV_NUM_VFS, 2); 924 printf(" "); 925 printf("%d VFs configured out of %d supported\n", num_vfs, total_vfs); 926 927 vf_offset = read_config(fd, &p->pc_sel, ptr + PCIR_SRIOV_VF_OFF, 2); 928 vf_stride = read_config(fd, &p->pc_sel, ptr + PCIR_SRIOV_VF_STRIDE, 2); 929 printf(" "); 930 printf("First VF RID Offset 0x%04x, VF RID Stride 0x%04x\n", vf_offset, 931 vf_stride); 932 933 vf_did = read_config(fd, &p->pc_sel, ptr + PCIR_SRIOV_VF_DID, 2); 934 printf(" VF Device ID 0x%04x\n", vf_did); 935 936 page_caps = read_config(fd, &p->pc_sel, ptr + PCIR_SRIOV_PAGE_CAP, 4); 937 page_size = read_config(fd, &p->pc_sel, ptr + PCIR_SRIOV_PAGE_SIZE, 4); 938 printf(" "); 939 printf("Page Sizes: "); 940 comma = ""; 941 while (page_caps != 0) { 942 page_shift = ffs(page_caps) - 1; 943 944 if (page_caps & page_size) 945 enabled = " (enabled)"; 946 else 947 enabled = ""; 948 949 size = (1 << (page_shift + PCI_SRIOV_BASE_PAGE_SHIFT)); 950 printf("%s%d%s", comma, size, enabled); 951 comma = ", "; 952 953 page_caps &= ~(1 << page_shift); 954 } 955 printf("\n"); 956 957 for (i = 0; i <= PCIR_MAX_BAR_0; i++) 958 print_bar(fd, p, "iov bar ", ptr + PCIR_SRIOV_BAR(i)); 959 } 960 961 static struct { 962 uint16_t id; 963 const char *name; 964 } ecap_names[] = { 965 { PCIZ_PWRBDGT, "Power Budgeting" }, 966 { PCIZ_RCLINK_DCL, "Root Complex Link Declaration" }, 967 { PCIZ_RCLINK_CTL, "Root Complex Internal Link Control" }, 968 { PCIZ_RCEC_ASSOC, "Root Complex Event Collector ASsociation" }, 969 { PCIZ_MFVC, "MFVC" }, 970 { PCIZ_RCRB, "RCRB" }, 971 { PCIZ_ACS, "ACS" }, 972 { PCIZ_ARI, "ARI" }, 973 { PCIZ_ATS, "ATS" }, 974 { PCIZ_MULTICAST, "Multicast" }, 975 { PCIZ_RESIZE_BAR, "Resizable BAR" }, 976 { PCIZ_DPA, "DPA" }, 977 { PCIZ_TPH_REQ, "TPH Requester" }, 978 { PCIZ_LTR, "LTR" }, 979 { 0, NULL } 980 }; 981 982 static void 983 list_ecaps(int fd, struct pci_conf *p) 984 { 985 const char *name; 986 uint32_t ecap; 987 uint16_t ptr; 988 int i; 989 990 ptr = PCIR_EXTCAP; 991 ecap = read_config(fd, &p->pc_sel, ptr, 4); 992 if (ecap == 0xffffffff || ecap == 0) 993 return; 994 for (;;) { 995 printf(" ecap %04x[%03x] = ", PCI_EXTCAP_ID(ecap), ptr); 996 switch (PCI_EXTCAP_ID(ecap)) { 997 case PCIZ_AER: 998 ecap_aer(fd, p, ptr, PCI_EXTCAP_VER(ecap)); 999 break; 1000 case PCIZ_VC: 1001 ecap_vc(fd, p, ptr, PCI_EXTCAP_VER(ecap)); 1002 break; 1003 case PCIZ_SERNUM: 1004 ecap_sernum(fd, p, ptr, PCI_EXTCAP_VER(ecap)); 1005 break; 1006 case PCIZ_VENDOR: 1007 ecap_vendor(fd, p, ptr, PCI_EXTCAP_VER(ecap)); 1008 break; 1009 case PCIZ_SEC_PCIE: 1010 ecap_sec_pcie(fd, p, ptr, PCI_EXTCAP_VER(ecap)); 1011 break; 1012 case PCIZ_SRIOV: 1013 ecap_sriov(fd, p, ptr, PCI_EXTCAP_VER(ecap)); 1014 break; 1015 default: 1016 name = "unknown"; 1017 for (i = 0; ecap_names[i].name != NULL; i++) 1018 if (ecap_names[i].id == PCI_EXTCAP_ID(ecap)) { 1019 name = ecap_names[i].name; 1020 break; 1021 } 1022 printf("%s %d\n", name, PCI_EXTCAP_VER(ecap)); 1023 break; 1024 } 1025 ptr = PCI_EXTCAP_NEXTPTR(ecap); 1026 if (ptr == 0) 1027 break; 1028 ecap = read_config(fd, &p->pc_sel, ptr, 4); 1029 } 1030 } 1031 1032 /* Find offset of a specific capability. Returns 0 on failure. */ 1033 uint8_t 1034 pci_find_cap(int fd, struct pci_conf *p, uint8_t id) 1035 { 1036 uint16_t sta; 1037 uint8_t ptr, cap; 1038 1039 /* Are capabilities present for this device? */ 1040 sta = read_config(fd, &p->pc_sel, PCIR_STATUS, 2); 1041 if (!(sta & PCIM_STATUS_CAPPRESENT)) 1042 return (0); 1043 1044 switch (p->pc_hdr & PCIM_HDRTYPE) { 1045 case PCIM_HDRTYPE_NORMAL: 1046 case PCIM_HDRTYPE_BRIDGE: 1047 ptr = PCIR_CAP_PTR; 1048 break; 1049 case PCIM_HDRTYPE_CARDBUS: 1050 ptr = PCIR_CAP_PTR_2; 1051 break; 1052 default: 1053 return (0); 1054 } 1055 1056 ptr = read_config(fd, &p->pc_sel, ptr, 1); 1057 while (ptr != 0 && ptr != 0xff) { 1058 cap = read_config(fd, &p->pc_sel, ptr + PCICAP_ID, 1); 1059 if (cap == id) 1060 return (ptr); 1061 ptr = read_config(fd, &p->pc_sel, ptr + PCICAP_NEXTPTR, 1); 1062 } 1063 return (0); 1064 } 1065 1066 /* Find offset of a specific extended capability. Returns 0 on failure. */ 1067 uint16_t 1068 pcie_find_cap(int fd, struct pci_conf *p, uint16_t id) 1069 { 1070 uint32_t ecap; 1071 uint16_t ptr; 1072 1073 ptr = PCIR_EXTCAP; 1074 ecap = read_config(fd, &p->pc_sel, ptr, 4); 1075 if (ecap == 0xffffffff || ecap == 0) 1076 return (0); 1077 for (;;) { 1078 if (PCI_EXTCAP_ID(ecap) == id) 1079 return (ptr); 1080 ptr = PCI_EXTCAP_NEXTPTR(ecap); 1081 if (ptr == 0) 1082 break; 1083 ecap = read_config(fd, &p->pc_sel, ptr, 4); 1084 } 1085 return (0); 1086 } 1087