1.\" $OpenBSD: pci.4,v 1.349 2016/06/16 19:13:57 martijn Exp $ 2.\" $NetBSD: pci.4,v 1.29 2000/04/01 00:32:23 tsarna Exp $ 3.\" 4.\" Copyright (c) 2000 Theo de Raadt. All rights reserved. 5.\" Copyright (c) 1997 Jason R. Thorpe. All rights reserved. 6.\" Copyright (c) 1997 Jonathan Stone 7.\" All rights reserved. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. All advertising materials mentioning features or use of this software 18.\" must display the following acknowledgements: 19.\" This product includes software developed by Jonathan Stone 20.\" 4. The name of the author may not be used to endorse or promote products 21.\" derived from this software without specific prior written permission 22.\" 23.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33.\" 34.Dd $Mdocdate: June 16 2016 $ 35.Dt PCI 4 36.Os 37.Sh NAME 38.Nm pci 39.Nd introduction to PCI bus support 40.Sh SYNOPSIS 41.Cd "# alpha" 42.Cd "pci* at apecs?" 43.Cd "pci* at cia?" 44.Cd "pci* at irongate?" 45.Cd "pci* at lca?" 46.Cd "pci* at tsp?" 47.Cd "pci* at mcpcia?" 48.Pp 49.Cd "# amd64, i386" 50.Cd "pci* at mainbus0" 51.Pp 52.Cd "# armish" 53.Cd "pci* at iopxs0" 54.Pp 55.Cd "# hppa" 56.Cd "pci* at dino?" 57.Cd "pci* at elroy?" 58.Pp 59.Cd "# landisk" 60.Cd "pci* at shpcic?" 61.Pp 62.Cd "# loongson" 63.Cd "pci* at bonito?" 64.Pp 65.Cd "# macppc" 66.Cd "pci* at mpcpcibr?" 67.Cd "pci* at ht?" 68.Cd "pci* at hpb?" 69.Pp 70.Cd "# sgi" 71.Cd "pci* at macepcibr?" 72.Cd "pci* at xbridge?" 73.Pp 74.Cd "# sparc64" 75.Cd "pci* at psycho?" 76.Cd "pci* at schizo?" 77.Cd "pci* at pyro?" 78.Cd "pci* at vpci?" 79.Pp 80.Cd "# all architectures" 81.Cd "pci* at pchb?" 82.Cd "pci* at ppb?" 83.Sh DESCRIPTION 84The system includes a machine-independent 85.Tn PCI 86bus subsystem and 87several machine-independent 88.Tn PCI 89device drivers. 90.Pp 91Note that interrupt mappings on the i386 may require that you configure 92your BIOS to reserve sufficient interrupts as "PCI/ISAPnP" so that there 93are sufficient interrupts remaining to configure the discovered PCI 94devices. 95For more information, see 96.Xr pcibios 4 . 97.Pp 98.Ox 99provides support for the following devices. 100Note that not all architectures support all devices. 101.Ss SCSI host adapters 102.Bl -tag -width 10n -offset ind -compact 103.It Xr adv 4 , Xr adw 4 104AdvanSys PCI SCSI interface 105.It Xr ahc 4 106Adaptec VL/EISA/PCI SCSI interface 107.It Xr ahd 4 108Adaptec PCI/PCI-X AIC79xx-based Ultra320 SCSI interface 109.It Xr bha 4 110Buslogic SCSI interface 111.It Xr iha 4 112Initio INIC-940/950 based PCI SCSI interface 113.It Xr mpi 4 114LSI Logic Fusion-MPT Message Passing Interface 115.It Xr mpii 4 116LSI Logic Fusion-MPT Message Passing Interface II 117.It Xr nvme 4 118Non-Volatile Memory Host Controller Interface 119.It Xr pcscp 4 120Advanced Micro Devices Am53c974 PCscsi-PCI SCSI interface 121.It Xr qla 4 122QLogic ISP2100/2200/2300 Fibre Channel controller 123.It Xr qle 4 124QLogic ISP2400/2500 Fibre Channel controller 125.It Xr qlw 4 126QLogic ISP1000/1020/1x40/1x80/1x160 SCSI controller 127.It Xr siop 4 128LSI/Symbios Logic/NCR 53c8xx SCSI interface 129.It Xr sli 4 130Emulex LightPulse Fibre Channel SCSI interface 131.It Xr trm 4 132TRM-S1040 based PCI SCSI interface 133.It Xr vmwpvs 4 134VMware Paravirtual SCSI 135.El 136.Ss IDE disk controllers 137.Bl -tag -width 10n -offset ind -compact 138.It Xr ahci 4 139Advanced Host Controller Interface for Serial ATA 140.It Xr jmb 4 141JMicron JMB36x SATA II and PATA Host Controller 142.It Xr pciide 4 143PCI IDE controller driver 144.It Xr sili 4 145Silicon Image 3124/3132/3531 SATA controller 146.El 147.Ss RAID and cache controllers 148.Bl -tag -width 10n -offset ind -compact 149.It Xr aac 4 150Adaptec SAS/SATA/SCSI RAID controller 151.It Xr ami 4 152American Megatrends Inc. MegaRAID PATA/SATA/SCSI RAID controller 153.It Xr arc 4 154Areca Technology Corporation SAS/SATA RAID controller 155.It Xr cac 4 156Compaq Smart Array 2/3/4 SCSI RAID controller 157.It Xr ciss 4 158Compaq Smart Array SAS/SATA/SCSI RAID controller 159.It Xr dpt 4 160DPT EATA SCSI RAID controller 161.It Xr gdt 4 162ICP-Vortex and Intel GDT SATA/SCSI RAID controller 163.It Xr ips 4 164IBM SATA/SCSI ServeRAID controller 165.It Xr mfi 4 166LSI Logic & Dell MegaRAID SAS RAID controller 167.It Xr mfii 4 168LSI Logic MegaRAID SAS Fusion RAID controller 169.It Xr twe 4 1703ware 5000/6000/7000/8000 series PATA/SATA RAID controller 171.El 172.Ss Wired network interfaces 173.Bl -tag -width 10n -offset ind -compact 174.It Xr age 4 175Attansic L1 10/100/Gigabit Ethernet device 176.It Xr alc 4 177Atheros AR813x/AR815x 10/100/Gigabit Ethernet device 178.It Xr ale 4 179Atheros AR8121/AR8113/AR8114 10/100/Gigabit Ethernet device 180.It Xr bce 4 181Broadcom BCM4401 10/100 Ethernet device 182.It Xr bge 4 183Broadcom BCM57xx/BCM590x 10/100/Gigabit Ethernet device 184.It Xr bnx 4 185Broadcom NetXtreme II 10/100/Gigabit Ethernet device 186.It Xr cas 4 187Sun Cassini 10/100/Gigabit Ethernet device 188.It Xr dc 4 189DEC/Intel 21140/21142/21143/21145 and clones 10/100 Ethernet device 190.It Xr de 4 191DEC DC21x4x (Tulip) 10/100 Ethernet device 192.It Xr em 4 193Intel PRO/1000 10/100/Gigabit Ethernet device 194.\" .It Xr en 4 195.\" Midway-based Efficient Networks Inc.\& 196.\" and Adaptec ATM interfaces 197.It Xr ep 4 1983Com EtherLink III and Fast EtherLink III 10/100 Ethernet device 199.It Xr epic 4 200SMC 83C170 (EPIC/100) 10/100 Ethernet device 201.It Xr et 4 202Agere/LSI ET1310 10/100/Gigabit Ethernet device 203.It Xr fxp 4 204Intel EtherExpress PRO/100 10/100 Ethernet device 205.It Xr gem 4 206GEM 10/100/Gigabit Ethernet device 207.It Xr hme 4 208Sun Happy Meal 10/100 Ethernet device 209.It Xr ix 4 210Intel 82598/82599/X540 PCI Express 10Gb Ethernet device 211.It Xr ixgb 4 212Intel PRO/10GbE 10Gb Ethernet device 213.It Xr jme 4 214JMicron JMC25x/JMC26x 10/100/Gigabit Ethernet device 215.It Xr lge 4 216Level 1 LXT1001 NetCellerator PCI Gigabit Ethernet device 217.It Xr lii 4 218Attansic L2 10/100 Ethernet device 219.It Xr msk 4 220Marvell Yukon-2 10/100/Gigabit Ethernet device 221.It Xr mtd 4 222Myson Technology MTD800/MTD803/MTD891 10/100/Gigabit Ethernet device 223.It Xr myx 4 224Myricom Myri-10G PCI Express 10Gb Ethernet device 225.It Xr ne 4 226NE2000 and compatible 10/100 Ethernet device 227.It Xr nep 4 228Sun Neptune 10Gb Ethernet device 229.It Xr nfe 4 230NVIDIA nForce MCP 10/100/Gigabit Ethernet device 231.It Xr nge 4 232National Semiconductor PCI 10/100/Gigabit Ethernet device 233.It Xr oce 4 234Emulex OneConnect 10Gb Ethernet device 235.It Xr pcn 4 236AMD PCnet-PCI 10/100 Ethernet device 237.It Xr re 4 238Realtek 8139C+/8169/816xS/811xS/8168/810xE 10/100/Gigabit Ethernet device 239.It Xr rl 4 240Realtek 8129/8139 10/100 Ethernet device 241.It Xr se 4 242SiS 190/191 10/100/Gigabit Ethernet device 243.It Xr sf 4 244Adaptec AIC-6915 "Starfire" PCI 10/100 Ethernet device 245.It Xr sis 4 246SiS 900, SiS 7016, and NS DP83815/6 10/100 Ethernet device 247.It Xr sk 4 248SysKonnect XMAC II and Marvell Yukon 10/100/Gigabit Ethernet device 249.It Xr ste 4 250Sundance Technologies ST201 10/100 Ethernet device 251.It Xr stge 4 252Sundance/Tamarack TC9021 Gigabit Ethernet device 253.It Xr tht 4 254Tehuti Networks 10Gb Ethernet device 255.It Xr ti 4 256Alteon Networks Tigon I and II Gigabit Ethernet device 257.It Xr tl 4 258Texas Instruments ThunderLAN 10/100 Ethernet device 259.It Xr txp 4 2603Com 3XP Typhoon/Sidewinder (3CR990) 10/100 Ethernet device 261.It Xr vge 4 262VIA Velocity 10/100/Gigabit Ethernet device 263.It Xr vic 4 264VMware VMXnet Virtual Interface Controller device 265.It Xr vr 4 266VIA Rhine I/II/III 10/100 Ethernet device 267.It Xr vte 4 268RDC R6040 10/100 Ethernet device 269.It Xr wb 4 270Winbond W89C840F 10/100 Ethernet device 271.It Xr xge 4 272Neterion Xframe/Xframe II 10Gb Ethernet device 273.It Xr xl 4 2743Com EtherLink XL and Fast EtherLink XL 10/100 Ethernet device 275.El 276.Ss Wireless network interfaces 277.Bl -tag -width 10n -offset ind -compact 278.It Xr acx 4 279TI ACX100/ACX111 IEEE 802.11a/b/g wireless network device 280.It Xr an 4 281Aironet Communications 4500/4800 IEEE 802.11FH/b wireless network device 282.It Xr ath 4 283Atheros IEEE 802.11a/b/g wireless network device with GPIO 284.It Xr athn 4 285Atheros IEEE 802.11a/b/g/n wireless network device 286.It Xr atw 4 287ADMtek ADM8211 IEEE 802.11b wireless network device 288.It Xr bwi 4 289Broadcom AirForce IEEE 802.11b/g wireless network device 290.It Xr ipw 4 291Intel PRO/Wireless 2100 IEEE 802.11b wireless network device 292.It Xr iwi 4 293Intel 294PRO/Wireless 2200BG/2225BG/2915ABG IEEE 802.11a/b/g wireless network device 295.It Xr iwn 4 296Intel WiFi Link and Centrino IEEE 802.11a/b/g/n wireless network devices 297.It Xr iwm 4 298Intel 7000/8000 IEEE 802.11a/ac/b/g/n wireless network devices 299.It Xr malo 4 300Marvell Libertas IEEE 802.11b/g wireless network device 301.It Xr pgt 4 302Conexant/Intersil Prism GT Full-MAC IEEE 802.11a/b/g wireless network device 303.It Xr ral 4 304Ralink Technology/MediaTek IEEE 802.11a/b/g/n wireless network device 305.It Xr rtw 4 306Realtek RTL8180L IEEE 802.11b wireless network device 307.It Xr rtwn 4 308Realtek RTL8188CE PCIe IEEE 802.11b/g/n wireless network device 309.It Xr wi 4 310WaveLAN/IEEE, PRISM 2-3, and Spectrum24 IEEE 802.11b wireless network 311device 312.It Xr wpi 4 313Intel PRO/Wireless 3945ABG IEEE 802.11a/b/g wireless network device 314.El 315.Ss Cryptography accelerators 316.Bl -tag -width 10n -offset ind -compact 317.It Xr glxsb 4 318Geode LX Security Block crypto accelerator 319.It Xr hifn 4 320Hifn 7751/7811/7951/7955/7956/9751 crypto accelerator 321.It Xr safe 4 322SafeNet crypto accelerator 323.It Xr ubsec 4 324Broadcom and BlueSteel uBsec 5x0x crypto accelerator 325.El 326.Ss Serial interfaces 327.Bl -tag -width 10n -offset ind -compact 328.It Xr cy 4 329Cyclades Cyclom-4Y, -8Y, and -16Y asynchronous serial communications devices 330.It Xr cz 4 331Cyclades-Z series multi-port serial adapter device 332.It Xr puc 4 333PCI 334.Dq universal 335communications card driver 336.El 337.Ss Display adapters 338.Bl -tag -width 10n -offset ind -compact 339.It Xr sti 4 340HP Standard Text Interface 341.It Xr tga 4 342DECchip 21030 (TGA) graphics driver 343.It Xr vga 4 344VGA graphics cards 345.El 346.Ss Audio devices 347.Bl -tag -width 10n -offset ind -compact 348.It Xr auacer 4 349Acer Labs I/O Controller Hub integrated AC'97 audio device 350.It Xr auglx 4 351AMD Geode LX CS5536 integrated AC'97 audio device 352.It Xr auich 4 353Intel ICH integrated AC'97 audio device 354.It Xr auixp 4 355ATI SB200/SB300/SB400/SB600 integrated AC'97 audio device 356.It Xr autri 4 357Trident 4DWAVE-DX/NX, SiS 7018, ALi M5451 audio device 358.It Xr auvia 4 359VIA VT82C686A/VT8233/VT8235/VT8237 integrated AC'97 audio device 360.It Xr azalia 4 361generic High Definition Audio device 362.It Xr clcs 4 363Cirrus Logic CS4280/CS4610/CS4615 audio device 364.It Xr clct 4 365Cirrus Logic CS4281 audio device 366.It Xr cmpci 4 367C-Media CMI8338/CMI8738/CMI8768 PCI audio device 368.It Xr eap 4 369Ensoniq AudioPCI audio device 370.It Xr emu 4 371Creative Labs SBLive!, PCI 512, and Audigy audio device 372.It Xr envy 4 373VIA Envy24 audio device 374.It Xr esa 4 375ESS Technology Allegro-1/Maestro-3 family audio device 376.It Xr eso 4 377ESS Technology Solo-1 PCI AudioDrive audio device 378.It Xr fms 4 379Forte Media FM801 audio device 380.It Xr maestro 4 381ESS Maestro 1 and 2 audio device 382.It Xr neo 4 383NeoMagic 256AV/ZX audio device 384.It Xr sv 4 385S3 SonicVibes audio device 386.It Xr yds 4 387Yamaha DS-XG audio device 388.El 389.Ss Time receiver devices 390.Bl -tag -width 10n -offset ind -compact 391.It Xr mbg 4 392Meinberg Funkuhren timedelta sensor 393.El 394.Ss Radio receiver devices 395.Bl -tag -width 10n -offset ind -compact 396.It Xr fms 4 397Forte Media FM801 audio device 398.It Xr gtp 4 399Gemtek PCI FM radio device 400.El 401.Ss Hardware Sensors 402.Bl -tag -width 10n -offset ind -compact 403.It Xr berkwdt 4 404Berkshire Products watchdog timer device 405.It Xr elansc 4 406AMD Elan SC520 System Controller with watchdog timer and GPIO 407.It Xr geodesc 4 408Geode SC1100/SCx200 IAOC watchdog timer device 409.It Xr ichwdt 4 410Intel 6300ESB ICH watchdog timer device 411.It Xr itherm 4 412Intel 3400 temperature sensor 413.It Xr kate 4 414AMD K8 temperature sensor 415.It Xr km 4 416AMD K10 temperature sensor 417.It Xr pchtemp 4 418Intel PCH temperature sensor 419.It Xr pwdog 4 420Quancom PWDOG1 watchdog timer device 421.It Xr viapm 4 422VIA SMBus controller and VIA VT82C686A/VT8231 hardware monitor 423.It Xr wdt 4 424ICS PCI-WDT500/501 watchdog timer device 425.El 426.Ss Miscellaneous devices 427.Bl -tag -width "piixpcib(4)" -offset ind -compact 428.It Xr alipm 4 429Acer Labs M7101 SMBus controller 430.It Xr amas 4 431AMD memory address map 432.It Xr amdiic 4 433AMD-8111 SMBus controller 434.It Xr amdpcib 4 435AMD-8111 series LPC bridge and timecounter 436.It Xr amdpm 4 437AMD-756/766/768/8111 Power Management and SMBus controller 438.It Xr bktr 4 439Brooktree Bt848/849/878/879 440.Tn PCI 441TV tuners and video capture boards 442.It Xr cbb 4 443.Tn PCI 444Yenta compatible 445.Tn CardBus 446bridges 447.It Xr ehci 4 448USB Enhanced Host Controller Interface 449.It Xr gcu 4 450Intel EP80579 Global Configuration Unit 451.It Xr glxpcib 4 452CS5536 PCI-ISA Bridge with timecounter, watchdog timer, and GPIO 453.It Xr gscpcib 4 454National Semiconductor Geode SC1100 PCI-ISA bridge with GPIO 455.It Xr hpb 4 456.Tn HyperTransport Ns \- Ns Tn PCI bridge 457.It Xr ichiic 4 458Intel ICH SMBus controller 459.It Xr nviic 4 460NVIDIA nForce2/3/4 SMBus controller 461.It Xr ohci 4 462USB Open Host Controller Interface 463.It Xr pcib 4 464PCI-ISA bridge 465.It Xr pcic 4 466.Tn PCI 467.Tn PCMCIA 468controllers, including the Cirrus Logic GD6729 469.It Xr piixpcib 4 470Intel PIIX4 ISA bridges 471.It Xr piixpm 4 472Intel PIIX SMBus controller 473.It Xr ppb 4 474.Tn PCI Ns \- Ns Tn PCI bridge 475.It Xr rtsx 4 476Realtek SD card reader 477.It Xr sdhc 4 478SD Host Controller 479.It Xr ssio 4 480National Semiconductor PC87560 Legacy IO 481.It Xr tcpcib 4 482Intel Atom E600 series LPC bridge and watchdog timer 483.It Xr uhci 4 484USB Universal Host Controller Interface 485.It Xr viapm 4 486VIA SMBus controller 487.It Xr virtio 4 488VirtIO support driver 489.El 490.Sh IOCTLS 491If the kernel is compiled with the 492.Va USER_PCICONF 493kernel option, the following 494.Xr ioctl 2 495calls are supported by the 496.Nm 497driver. 498They are defined in the header file 499.In sys/pciio.h . 500.Bl -tag -width Ds 501.It PCIOCREAD Fa "struct pci_io *" 502This 503.Xr ioctl 2 504reads the 505.Tn PCI 506configuration registers specified by the passed-in 507.Va pci_io 508structure. 509The 510.Va pci_io 511structure consists of the following fields: 512.Bl -tag -width pi_width 513.It pi_sel 514A 515.Va pcisel 516structure which specifies the bus, slot and function the user would like to 517query. 518.It pi_reg 519The 520.Tn PCI 521configuration register the user would like to access. 522.It pi_width 523The width, in bytes, of the data the user would like to read. 524This value can be only 4. 525.It pi_data 526The data returned by the kernel. 527.El 528.It PCIOCWRITE Fa "struct pci_io *" 529This 530.Xr ioctl 2 531allows users to write to the 532.Tn PCI 533device specified in the passed-in 534.Va pci_io 535structure. 536The 537.Va pci_io 538structure is described above. 539The limitations on data width described for 540reading registers, above, also apply to writing 541.Tn PCI 542configuration registers. 543.It PCIOCGETROM Fa "struct pci_rom *" 544This 545.Xr ioctl 2 546allows users to read the contents of the 547.Tn PCI 548ROM specified in the passed-in 549.Va pci_rom 550structure. 551The 552.Va pci_rom 553structure consists of the following fields: 554.Bl -tag -width pr_romlen 555.It pr_sel 556A 557.Va pcisel 558structure which specifies the bus, slot and function the user would like to 559query. 560.It pr_romlen 561Size of the buffer to store the contents of the ROM. 562Upon return, this field will contain the size of the ROM 563.It pr_rom 564The address of the buffer to store the contents of the ROM. 565.El 566.Pp 567If the ROM is larger than the specified buffer size, 568.Dv ENOMEM 569will be returned. 570.El 571.Sh FILES 572.Bl -tag -width /dev/pci* -compact 573.It Pa /dev/pci* 574Character device for the 575.Nm 576driver. 577.El 578.Sh SEE ALSO 579.Xr intro 4 , 580.Xr pcidump 8 581.Sh HISTORY 582The machine-independent 583.Tn PCI 584subsystem appeared in 585.Ox 1.2 . 586