*** UNIX MANUAL PAGE BROWSER ***

PCI(4) FreeBSD Kernel Interfaces Manual PCI(4) NAME pci - introduction to PCI bus support SYNOPSIS # alpha pci* at apecs? pci* at cia? pci* at irongate? pci* at lca? pci* at tsp? pci* at mcpcia? # amd64, i386 pci* at mainbus0 # arm64 pci* at acpipci? pci* at bcmpcie? pci* at dwpcie? pci* at mvkpcie? pci* at pciecam? pci* at rkpcie? # armv7 pci* at mvpcie? pci* at pciecam? # hppa pci* at dino? pci* at elroy? # landisk pci* at shpcic? # loongson pci* at bonito? pci* at htb? # macppc pci* at mpcpcibr? pci* at ht? pci* at hpb? # octeon pci* at octpcie? # riscv64 pci* at dwpcie? pci* at pciecam? # sparc64 pci* at psycho? pci* at schizo? pci* at pyro? pci* at vpci? # all architectures pci* at pchb? pci* at ppb? DESCRIPTION The system includes a machine-independent PCI bus subsystem and several machine-independent PCI device drivers. Note that interrupt mappings on the i386 may require that you configure your BIOS to reserve sufficient interrupts as "PCI/ISAPnP" so that there are sufficient interrupts remaining to configure the discovered PCI devices. For more information, see pcibios(4). OpenBSD provides support for the following devices. Note that not all architectures support all devices. SCSI host adapters adv(4), adw(4) AdvanSys PCI SCSI interface ahc(4) Adaptec VL/EISA/PCI SCSI interface ahd(4) Adaptec PCI/PCI-X AIC79xx-based Ultra320 SCSI interface iha(4) Initio INIC-940/950 based PCI SCSI interface mpi(4) LSI Logic Fusion-MPT Message Passing Interface mpii(4) LSI Logic Fusion-MPT Message Passing Interface II nvme(4) Non-Volatile Memory Host Controller Interface pcscp(4) Advanced Micro Devices Am53c974 PCscsi-PCI SCSI interface qla(4) QLogic ISP2100/2200/2300 Fibre Channel controller qle(4) QLogic ISP2400/2500 Fibre Channel controller qlw(4) QLogic ISP1000/1020/1x40/1x80/1x160 SCSI controller siop(4) LSI/Symbios Logic/NCR 53c8xx SCSI interface trm(4) TRM-S1040 based PCI SCSI interface ufshci(4) Universal Flash Storage Host Controller Interface vmwpvs(4) VMware Paravirtual SCSI IDE disk controllers ahci(4) Advanced Host Controller Interface for Serial ATA jmb(4) JMicron JMB36x SATA II and PATA Host Controller kauaiata(4) ATA100 HD controller on PCI bus pciide(4) PCI IDE controller driver sili(4) Silicon Image 3124/3132/3531 SATA controller RAID and cache controllers aac(4) Adaptec SAS/SATA/SCSI RAID controller ami(4) American Megatrends Inc. MegaRAID PATA/SATA/SCSI RAID controller arc(4) Areca Technology Corporation SAS/SATA RAID controller cac(4) Compaq Smart Array 2/3/4 SCSI RAID controller ciss(4) Compaq Smart Array SAS/SATA/SCSI RAID controller gdt(4) ICP-Vortex and Intel GDT SATA/SCSI RAID controller ips(4) IBM SATA/SCSI ServeRAID controller mfi(4) LSI Logic & Dell MegaRAID SAS RAID controller mfii(4) LSI Logic MegaRAID SAS Fusion RAID controller twe(4) 3ware 5000/6000/7000/8000 series PATA/SATA RAID controller Wired network interfaces age(4) Attansic L1 10/100/1Gb Ethernet device alc(4) Atheros AR813x/AR815x/AR816x/AR817x 10/100/1Gb Ethernet device ale(4) Atheros AR8121/AR8113/AR8114 10/100/1Gb Ethernet device aq(4) Aquantia AQC1xx 1Gb/2.5Gb/5Gb/10Gb PCIe Ethernet device bce(4) Broadcom BCM4401 10/100 Ethernet device bge(4) Broadcom BCM57xx/BCM590x 10/100/1Gb Ethernet device bnx(4) Broadcom NetXtreme II 10/100/1Gb Ethernet device bnxt(4) Broadcom NetXtreme-C/E 10Gb/25Gb/40Gb/50Gb Ethernet device cas(4) Sun Cassini 10/100/1Gb Ethernet device dc(4) DEC/Intel 21140/21142/21143/21145 and clones 10/100 Ethernet device de(4) DEC DC21x4x (Tulip) 10/100 Ethernet device dwqe(4) Synopsys DesignWare Ethernet Quality-of-Service Controller em(4) Intel PRO/1000 10/100/1Gb Ethernet device ep(4) 3Com EtherLink III and Fast EtherLink III 10/100 Ethernet device epic(4) SMC 83C170 (EPIC/100) 10/100 Ethernet device et(4) Agere/LSI ET1310 10/100/1Gb Ethernet device fxp(4) Intel EtherExpress PRO/100 10/100 Ethernet device gem(4) GEM 10/100/1Gb Ethernet device hme(4) Sun Happy Meal 10/100 Ethernet device iavf(4) Intel Ethernet adaptive virtual function device ice(4) Intel Ethernet 800 series Ethernet device igc(4) Intel I225/I226 1Gb/2.5Gb Ethernet device ix(4) Intel 82598/82599/X540/X550 PCI Express 100/1Gb/10Gb Ethernet device ixgb(4) Intel PRO/10GbE 10Gb Ethernet device ixl(4) Intel Ethernet 700 series Ethernet device ixv(4) Intel 10Gb Ethernet virtual function device jme(4) JMicron JMC25x/JMC26x 10/100/1Gb Ethernet device lge(4) Level 1 LXT1001 NetCellerator PCI 1Gb Ethernet device lii(4) Attansic L2 10/100 Ethernet device mcx(4) Mellanox 5th generation Ethernet device msk(4) Marvell Yukon-2 10/100/1Gb Ethernet device mtd(4) Myson Technology MTD800/MTD803/MTD891 10/100/1Gb Ethernet device myx(4) Myricom Myri-10G PCI Express 10Gb Ethernet device ne(4) NE2000 and compatible 10/100 Ethernet device nep(4) Sun Neptune 10Gb Ethernet device nfe(4) NVIDIA nForce MCP 10/100/1Gb Ethernet device ngbe(4) WangXun WX1860 PCI Express 10/100/1Gb Ethernet device nge(4) National Semiconductor PCI 10/100/1Gb Ethernet device oce(4) Emulex OneConnect 10Gb Ethernet device pcn(4) AMD PCnet-PCI 10/100 Ethernet device re(4) Realtek 8139C+/8169/816xS/811xS/8168/810xE 10/100/1Gb Ethernet device rge(4) Realtek 8125/8125B/8126 PCI Express 10/100/1Gb/2.5Gb/5Gb Ethernet device rl(4) Realtek 8129/8139 10/100 Ethernet device se(4) SiS 190/191 10/100/1Gb Ethernet device sf(4) Adaptec AIC-6915 "Starfire" PCI 10/100 Ethernet device sis(4) SiS 900, SiS 7016, and NS DP83815/6 10/100 Ethernet device sk(4) SysKonnect XMAC II and Marvell Yukon 10/100/1Gb Ethernet device ste(4) Sundance Technologies ST201 10/100 Ethernet device stge(4) Sundance/Tamarack TC9021 1Gb Ethernet device tht(4) Tehuti Networks 10Gb Ethernet device ti(4) Alteon Networks Tigon I and II 1Gb Ethernet device tl(4) Texas Instruments ThunderLAN 10/100 Ethernet device txp(4) 3Com 3XP Typhoon/Sidewinder (3CR990) 10/100 Ethernet device vge(4) VIA Velocity 10/100/1Gb Ethernet device vic(4) VMware VMXnet Virtual Interface Controller device vmx(4) VMware VMXNET3 Virtual Interface Controller device vr(4) VIA Rhine I/II/III 10/100 Ethernet device vte(4) RDC R6040 10/100 Ethernet device wb(4) Winbond W89C840F 10/100 Ethernet device xge(4) Neterion Xframe/Xframe II 10Gb Ethernet device xl(4) 3Com EtherLink XL and Fast EtherLink XL 10/100 Ethernet device Wireless network interfaces acx(4) TI ACX100/ACX111 IEEE 802.11a/b/g wireless network device an(4) Aironet Communications 4500/4800 IEEE 802.11FH/b wireless network device ath(4) Atheros IEEE 802.11a/b/g wireless network device with GPIO athn(4) Atheros IEEE 802.11a/b/g/n wireless network device atw(4) ADMtek ADM8211 IEEE 802.11b wireless network device bwfm(4) Broadcom and Cypress IEEE 802.11a/ac/ax/b/g/n wireless network device bwi(4) Broadcom AirForce IEEE 802.11b/g wireless network device ipw(4) Intel PRO/Wireless 2100 IEEE 802.11b wireless network device iwi(4) Intel PRO/Wireless 2200BG/2225BG/2915ABG IEEE 802.11a/b/g wireless network device iwn(4) Intel WiFi Link and Centrino IEEE 802.11a/b/g/n wireless network device iwm(4) Intel 7000/8000/9000 IEEE 802.11a/ac/b/g/n wireless network device iwx(4) Intel AX200/AX201/AX210/AX211 IEEE 802.11a/ac/ax/b/g/n wireless network device malo(4) Marvell Libertas IEEE 802.11b/g wireless network device pgt(4) Conexant/Intersil Prism GT Full-MAC IEEE 802.11a/b/g wireless network device qwx(4) Qualcomm IEEE 802.11a/ac/ax/b/g/n wireless network device ral(4) Ralink Technology/MediaTek IEEE 802.11a/b/g/n wireless network device rtw(4) Realtek RTL8180L IEEE 802.11b wireless network device rtwn(4) Realtek RTL8188CE/RTL8188EE/RTL8192CE/RTL8723AE PCIe IEEE 802.11b/g/n wireless network device wi(4) WaveLAN/IEEE, PRISM 2-3, and Spectrum24 IEEE 802.11b wireless network device wpi(4) Intel PRO/Wireless 3945ABG IEEE 802.11a/b/g wireless network device Cryptography accelerators ccp(4) AMD cryptographic co-processor glxsb(4) Geode LX Security Block crypto accelerator Serial interfaces cy(4) Cyclades Cyclom-4Y, -8Y, and -16Y asynchronous serial communications devices cz(4) Cyclades-Z series multi-port serial adapter device puc(4) PCI "universal" communications card driver Display adapters astfb(4) Aspeed BMC frame buffer gfxp(4) accelerated color frame buffer ifb(4) inextricable frame buffer machfb(4) accelerated color frame buffer radeonfb 4 accelerated color frame buffer raptor(4) accelerated color frame buffer sisfb(4) SiS 315 Pro frame buffer smfb(4) Silicon Motion frame buffer sti(4) HP Standard Text Interface tga(4) DECchip 21030 (TGA) graphics driver vga(4) VGA graphics cards vgafb(4) VGA frame buffer Audio devices auacer(4) Acer Labs I/O Controller Hub integrated AC'97 audio device auglx(4) AMD Geode LX CS5536 integrated AC'97 audio device auich(4) Intel ICH integrated AC'97 audio device auixp(4) ATI SB200/SB300/SB400/SB600 integrated AC'97 audio device autri(4) Trident 4DWAVE-DX/NX, SiS 7018, ALi M5451 audio device auvia(4) VIA VT82C686A/VT8233/VT8235/VT8237 integrated AC'97 audio device azalia(4) generic High Definition Audio device clcs(4) Cirrus Logic CS4280/CS4610/CS4615 audio device clct(4) Cirrus Logic CS4281 audio device cmpci(4) C-Media CMI8338/CMI8738/CMI8768 PCI audio device eap(4) Ensoniq AudioPCI audio device emu(4) Creative Labs SBLive!, PCI 512, and Audigy audio device envy(4) VIA Envy24 audio device esa(4) ESS Technology Allegro-1/Maestro-3 family audio device eso(4) ESS Technology Solo-1 PCI AudioDrive audio device fms(4) Forte Media FM801 audio device maestro(4) ESS Maestro 1 and 2 audio device neo(4) NeoMagic 256AV/ZX audio device sv(4) S3 SonicVibes audio device yds(4) Yamaha DS-XG audio device Time receiver devices mbg(4) Meinberg Funkuhren timedelta sensor Radio receiver devices fms(4) Forte Media FM801 audio device Hardware Sensors berkwdt(4) Berkshire Products watchdog timer device geodesc(4) Geode SC1100/SCx200 IAOC watchdog timer device ichwdt(4) Intel 6300ESB ICH watchdog timer device itherm(4) Intel 3400 temperature sensor kate(4) AMD K8 temperature sensor km(4) AMD K10 temperature sensor ksmn(4) AMD K17 temperature sensor over SMN pchtemp(4) Intel PCH temperature sensor pwdog(4) Quancom PWDOG1 watchdog timer device viapm(4) VIA SMBus controller and VIA VT82C686A/VT8231 hardware monitor wdt(4) ICS PCI-WDT500/501 watchdog timer device Miscellaneous devices alipm(4) Acer Labs M7101 SMBus controller amas(4) AMD memory address map amdiic(4) AMD-8111 SMBus controller amdpcib(4) AMD-8111 series LPC bridge and timecounter amdpm(4) AMD-756/766/768/8111 Power Management and SMBus controller bktr(4) Brooktree Bt848/849/878/879 PCI TV tuners and video capture boards cbb(4) PCI Yenta compatible CardBus bridges drm(4) Direct Rendering Manager device dwiic(4) Synopsys DesignWare I2C controller ehci(4) USB Enhanced Host Controller Interface gcu(4) Intel EP80579 Global Configuration Unit glxpcib(4) CS5536 PCI-ISA Bridge with timecounter, watchdog timer, and GPIO gscpcib(4) National Semiconductor Geode SC1100 PCI-ISA bridge with GPIO gscpm(4) National Semiconductor Geode SC1100 SMI/ACPI module hpb(4) HyperTransport-PCI bridge ichiic(4) Intel ICH SMBus controller ichpcib(4) Intel ICHx/ICHx-M LPC bridges iosf(4) Intel OnChip System Fabric device nviic(4) NVIDIA nForce2/3/4 SMBus controller ohci(4) USB Open Host Controller Interface pcib(4) PCI-ISA bridge pcic(4) PCI PCMCIA controllers, including the Cirrus Logic GD6729 piixpm(4) Intel PIIX SMBus controller ppb(4) PCI-PCI bridge rtsx(4) Realtek SD card reader sbbc(4) PCI BootBus Controller sdhc(4) SD Host Controller ssio(4) National Semiconductor PC87560 Legacy IO tcpcib(4) Intel Atom E600 series LPC bridge and watchdog timer uhci(4) USB Universal Host Controller Interface viapm(4) VIA SMBus controller virtio(4) VirtIO support driver voyager(4) Silicon Motion Mobile Multimedia Companion Chip xspd(4) XenSource Platform Device driver IOCTLS If the kernel is compiled with the USER_PCICONF kernel option, the following ioctl(2) calls are supported by the pci driver. They are defined in the header file <sys/pciio.h>. PCIOCREAD struct pci_io * This ioctl(2) reads the PCI configuration registers specified by the passed-in pci_io structure. The pci_io structure consists of the following fields: pi_sel A pcisel structure which specifies the bus, slot and function the user would like to query. pi_reg The PCI configuration register the user would like to access. pi_width The width, in bytes, of the data the user would like to read. This value can be only 4. pi_data The data returned by the kernel. PCIOCWRITE struct pci_io * This ioctl(2) allows users to write to the PCI device specified in the passed-in pci_io structure. The pci_io structure is described above. The limitations on data width described for reading registers, above, also apply to writing PCI configuration registers. PCIOCGETROM struct pci_rom * This ioctl(2) allows users to read the contents of the PCI ROM specified in the passed-in pci_rom structure. The pci_rom structure consists of the following fields: pr_sel A pcisel structure which specifies the bus, slot and function the user would like to query. pr_romlen Size of the buffer to store the contents of the ROM. Upon return, this field will contain the size of the ROM pr_rom The address of the buffer to store the contents of the ROM. If the ROM is larger than the specified buffer size, ENOMEM will be returned. FILES /dev/pci* Character device for the pci driver. SEE ALSO intro(4), pcidump(8) HISTORY The machine-independent PCI subsystem appeared in OpenBSD 1.2. FreeBSD 14.1-RELEASE-p8 November 26, 2024 FreeBSD 14.1-RELEASE-p8