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teach pcidump about pci class and subclass names
i wanted to know if some devices are pci bridges or hosts, and found looking up the values in pcireg.h to be a bit tedious.
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dlg
parent
d55a83ee24
commit
06b03c88d3
@ -1,4 +1,4 @@
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/* $OpenBSD: pcidump.c,v 1.49 2019/02/19 21:32:42 dlg Exp $ */
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/* $OpenBSD: pcidump.c,v 1.50 2019/03/11 01:06:38 dlg Exp $ */
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/*
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* Copyright (c) 2006, 2007 David Gwynne <loki@animata.net>
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@ -58,6 +58,11 @@ void print_pcie_ls(uint8_t);
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int dump_rom(int, int, int);
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int dump_vga_bios(void);
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static const char *
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pci_class_name(pci_class_t);
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static const char *
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pci_subclass_name(pci_class_t, pci_subclass_t);
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void dump_type0(int bus, int dev, int func);
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void dump_type1(int bus, int dev, int func);
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void dump_type2(int bus, int dev, int func);
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@ -696,6 +701,8 @@ dump(int bus, int dev, int func)
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{
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u_int32_t reg;
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u_int8_t capptr = PCI_CAPLISTPTR_REG;
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pci_class_t class;
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pci_subclass_t subclass;
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if (pci_read(bus, dev, func, PCI_ID_REG, ®) != 0)
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warn("unable to read PCI_ID_REG");
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@ -709,9 +716,14 @@ dump(int bus, int dev, int func)
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if (pci_read(bus, dev, func, PCI_CLASS_REG, ®) != 0)
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warn("unable to read PCI_CLASS_REG");
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printf("\t0x%04x: Class: %02x Subclass: %02x Interface: %02x "
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"Revision: %02x\n", PCI_CLASS_REG, PCI_CLASS(reg),
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PCI_SUBCLASS(reg), PCI_INTERFACE(reg), PCI_REVISION(reg));
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class = PCI_CLASS(reg);
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subclass = PCI_SUBCLASS(reg);
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printf("\t0x%04x:\tClass: %02x %s", PCI_CLASS_REG, class,
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pci_class_name(class));
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printf(" Subclass: %02x %s", subclass,
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pci_subclass_name(class, subclass));
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printf(" Interface: %02x Revision: %02x\n",
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PCI_INTERFACE(reg), PCI_REVISION(reg));
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if (pci_read(bus, dev, func, PCI_BHLC_REG, ®) != 0)
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warn("unable to read PCI_BHLC_REG");
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@ -880,3 +892,274 @@ dump_vga_bios(void)
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return (ENODEV);
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#endif
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}
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struct pci_subclass {
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pci_subclass_t subclass;
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const char *name;
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};
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struct pci_class {
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pci_class_t class;
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const char *name;
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const struct pci_subclass
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*subclass;
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size_t nsubclass;
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};
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static const struct pci_subclass pci_subclass_prehistoric[] = {
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{ PCI_SUBCLASS_PREHISTORIC_MISC, "Miscellaneous" },
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{ PCI_SUBCLASS_PREHISTORIC_VGA, "VGA" },
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};
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static const struct pci_subclass pci_subclass_mass_storage[] = {
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{ PCI_SUBCLASS_MASS_STORAGE_SCSI, "SCSI" },
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{ PCI_SUBCLASS_MASS_STORAGE_IDE, "IDE" },
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{ PCI_SUBCLASS_MASS_STORAGE_FLOPPY, "Floppy" },
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{ PCI_SUBCLASS_MASS_STORAGE_IPI, "IPI" },
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{ PCI_SUBCLASS_MASS_STORAGE_RAID, "RAID" },
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{ PCI_SUBCLASS_MASS_STORAGE_ATA, "ATA" },
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{ PCI_SUBCLASS_MASS_STORAGE_SATA, "SATA" },
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{ PCI_SUBCLASS_MASS_STORAGE_SAS, "SAS" },
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{ PCI_SUBCLASS_MASS_STORAGE_UFS, "UFS" },
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{ PCI_SUBCLASS_MASS_STORAGE_NVM, "NVM" },
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{ PCI_SUBCLASS_MASS_STORAGE_MISC, "Miscellaneous" },
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};
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static const struct pci_subclass pci_subclass_network[] = {
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{ PCI_SUBCLASS_NETWORK_ETHERNET, "Ethernet" },
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{ PCI_SUBCLASS_NETWORK_TOKENRING, "Token Ring" },
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{ PCI_SUBCLASS_NETWORK_FDDI, "FDDI" },
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{ PCI_SUBCLASS_NETWORK_ATM, "ATM" },
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{ PCI_SUBCLASS_NETWORK_ISDN, "ISDN" },
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{ PCI_SUBCLASS_NETWORK_WORLDFIP, "WorldFip" },
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{ PCI_SUBCLASS_NETWORK_PCIMGMULTICOMP, "PCMIG Multi Computing" },
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{ PCI_SUBCLASS_NETWORK_INFINIBAND, "InfiniBand" },
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{ PCI_SUBCLASS_NETWORK_MISC, "Miscellaneous" },
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};
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static const struct pci_subclass pci_subclass_display[] = {
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{ PCI_SUBCLASS_DISPLAY_VGA, "VGA" },
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{ PCI_SUBCLASS_DISPLAY_XGA, "XGA" },
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{ PCI_SUBCLASS_DISPLAY_3D, "3D" },
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{ PCI_SUBCLASS_DISPLAY_MISC, "Miscellaneous" },
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};
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static const struct pci_subclass pci_subclass_memory[] = {
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{ PCI_SUBCLASS_MEMORY_RAM, "RAM" },
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{ PCI_SUBCLASS_MEMORY_FLASH, "Flash" },
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{ PCI_SUBCLASS_MEMORY_MISC, "Miscellaneous" },
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};
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static const struct pci_subclass pci_subclass_bridge[] = {
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{ PCI_SUBCLASS_BRIDGE_HOST, "Host" },
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{ PCI_SUBCLASS_BRIDGE_ISA, "ISA" },
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{ PCI_SUBCLASS_BRIDGE_EISA, "EISA" },
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{ PCI_SUBCLASS_BRIDGE_MC, "MicroChannel" },
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{ PCI_SUBCLASS_BRIDGE_PCI, "PCI" },
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{ PCI_SUBCLASS_BRIDGE_PCMCIA, "PCMCIA" },
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{ PCI_SUBCLASS_BRIDGE_NUBUS, "NuBus" },
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{ PCI_SUBCLASS_BRIDGE_RACEWAY, "RACEway" },
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{ PCI_SUBCLASS_BRIDGE_STPCI, "Semi-transparent PCI" },
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{ PCI_SUBCLASS_BRIDGE_INFINIBAND, "InfiniBand" },
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{ PCI_SUBCLASS_BRIDGE_MISC, "Miscellaneous" },
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{ PCI_SUBCLASS_BRIDGE_AS, "advanced switching" },
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};
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static const struct pci_subclass pci_subclass_communications[] = {
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{ PCI_SUBCLASS_COMMUNICATIONS_SERIAL, "Serial" },
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{ PCI_SUBCLASS_COMMUNICATIONS_PARALLEL, "Parallel" },
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{ PCI_SUBCLASS_COMMUNICATIONS_MPSERIAL, "Multi-port Serial" },
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{ PCI_SUBCLASS_COMMUNICATIONS_MODEM, "Modem" },
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{ PCI_SUBCLASS_COMMUNICATIONS_GPIB, "GPIB" },
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{ PCI_SUBCLASS_COMMUNICATIONS_SMARTCARD,
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"Smartcard" },
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{ PCI_SUBCLASS_COMMUNICATIONS_MISC, "Miscellaneous" },
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};
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static const struct pci_subclass pci_subclass_system[] = {
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{ PCI_SUBCLASS_SYSTEM_PIC, "Interrupt" },
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{ PCI_SUBCLASS_SYSTEM_DMA, "8237 DMA" },
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{ PCI_SUBCLASS_SYSTEM_TIMER, "8254 Timer" },
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{ PCI_SUBCLASS_SYSTEM_RTC, "RTC" },
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{ PCI_SUBCLASS_SYSTEM_SDHC, "SDHC" },
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{ PCI_SUBCLASS_SYSTEM_IOMMU, "IOMMU" },
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{ PCI_SUBCLASS_SYSTEM_ROOTCOMPEVENT, "Root Complex Event" },
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{ PCI_SUBCLASS_SYSTEM_MISC, "Miscellaneous" },
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};
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static const struct pci_subclass pci_subclass_input[] = {
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{ PCI_SUBCLASS_INPUT_KEYBOARD, "Keyboard" },
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{ PCI_SUBCLASS_INPUT_DIGITIZER, "Digitizer" },
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{ PCI_SUBCLASS_INPUT_MOUSE, "Mouse" },
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{ PCI_SUBCLASS_INPUT_SCANNER, "Scanner" },
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{ PCI_SUBCLASS_INPUT_GAMEPORT, "Game Port" },
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{ PCI_SUBCLASS_INPUT_MISC, "Miscellaneous" },
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};
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static const struct pci_subclass pci_subclass_dock[] = {
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{ PCI_SUBCLASS_DOCK_GENERIC, "Generic" },
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{ PCI_SUBCLASS_DOCK_MISC, "Miscellaneous" },
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};
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static const struct pci_subclass pci_subclass_processor[] = {
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{ PCI_SUBCLASS_PROCESSOR_386, "386" },
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{ PCI_SUBCLASS_PROCESSOR_486, "486" },
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{ PCI_SUBCLASS_PROCESSOR_PENTIUM, "Pentium" },
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{ PCI_SUBCLASS_PROCESSOR_ALPHA, "Alpha" },
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{ PCI_SUBCLASS_PROCESSOR_POWERPC, "PowerPC" },
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{ PCI_SUBCLASS_PROCESSOR_MIPS, "MIPS" },
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{ PCI_SUBCLASS_PROCESSOR_COPROC, "Co-Processor" },
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};
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static const struct pci_subclass pci_subclass_serialbus[] = {
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{ PCI_SUBCLASS_SERIALBUS_FIREWIRE, "FireWire" },
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{ PCI_SUBCLASS_SERIALBUS_ACCESS, "ACCESS.bus" },
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{ PCI_SUBCLASS_SERIALBUS_SSA, "SSA" },
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{ PCI_SUBCLASS_SERIALBUS_USB, "USB" },
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{ PCI_SUBCLASS_SERIALBUS_FIBER, "Fiber Channel" },
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{ PCI_SUBCLASS_SERIALBUS_SMBUS, "SMBus" },
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{ PCI_SUBCLASS_SERIALBUS_INFINIBAND, "InfiniBand" },
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{ PCI_SUBCLASS_SERIALBUS_IPMI, "IPMI" },
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{ PCI_SUBCLASS_SERIALBUS_SERCOS, "SERCOS" },
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{ PCI_SUBCLASS_SERIALBUS_CANBUS, "CANbus" },
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};
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static const struct pci_subclass pci_subclass_wireless[] = {
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{ PCI_SUBCLASS_WIRELESS_IRDA, "IrDA" },
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{ PCI_SUBCLASS_WIRELESS_CONSUMERIR, "Consumer IR" },
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{ PCI_SUBCLASS_WIRELESS_RF, "RF" },
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{ PCI_SUBCLASS_WIRELESS_BLUETOOTH, "Bluetooth" },
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{ PCI_SUBCLASS_WIRELESS_BROADBAND, "Broadband" },
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{ PCI_SUBCLASS_WIRELESS_802_11A, "802.11a" },
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{ PCI_SUBCLASS_WIRELESS_802_11B, "802.11b" },
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{ PCI_SUBCLASS_WIRELESS_MISC, "Miscellaneous" },
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};
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static const struct pci_subclass pci_subclass_i2o[] = {
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{ PCI_SUBCLASS_I2O_STANDARD, "Standard" },
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};
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static const struct pci_subclass pci_subclass_satcom[] = {
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{ PCI_SUBCLASS_SATCOM_TV, "TV" },
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{ PCI_SUBCLASS_SATCOM_AUDIO, "Audio" },
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{ PCI_SUBCLASS_SATCOM_VOICE, "Voice" },
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{ PCI_SUBCLASS_SATCOM_DATA, "Data" },
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};
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static const struct pci_subclass pci_subclass_crypto[] = {
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{ PCI_SUBCLASS_CRYPTO_NETCOMP, "Network/Computing" },
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{ PCI_SUBCLASS_CRYPTO_ENTERTAINMENT, "Entertainment" },
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{ PCI_SUBCLASS_CRYPTO_MISC, "Miscellaneous" },
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};
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static const struct pci_subclass pci_subclass_dasp[] = {
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{ PCI_SUBCLASS_DASP_DPIO, "DPIO" },
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{ PCI_SUBCLASS_DASP_TIMEFREQ, "Time and Frequency" },
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{ PCI_SUBCLASS_DASP_SYNC, "Synchronization" },
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{ PCI_SUBCLASS_DASP_MGMT, "Management" },
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{ PCI_SUBCLASS_DASP_MISC, "Miscellaneous" },
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};
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#define CLASS(_c, _n, _s) { \
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.class = _c, \
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.name = _n, \
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.subclass = _s, \
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.nsubclass = nitems(_s), \
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}
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static const struct pci_class pci_classes[] = {
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CLASS(PCI_CLASS_PREHISTORIC, "Prehistoric",
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pci_subclass_prehistoric),
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CLASS(PCI_CLASS_MASS_STORAGE, "Mass Storage",
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pci_subclass_mass_storage),
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CLASS(PCI_CLASS_NETWORK, "Network",
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pci_subclass_network),
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CLASS(PCI_CLASS_DISPLAY, "Display",
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pci_subclass_display),
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CLASS(PCI_CLASS_MEMORY, "Memory",
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pci_subclass_memory),
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CLASS(PCI_CLASS_BRIDGE, "Bridge",
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pci_subclass_bridge),
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CLASS(PCI_CLASS_COMMUNICATIONS, "Communications",
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pci_subclass_communications),
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CLASS(PCI_CLASS_SYSTEM, "System",
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pci_subclass_system),
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CLASS(PCI_CLASS_INPUT, "Input",
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pci_subclass_input),
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CLASS(PCI_CLASS_DOCK, "Dock",
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pci_subclass_dock),
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CLASS(PCI_CLASS_PROCESSOR, "Processor",
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pci_subclass_processor),
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CLASS(PCI_CLASS_SERIALBUS, "Serial Bus",
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pci_subclass_serialbus),
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CLASS(PCI_CLASS_WIRELESS, "Wireless",
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pci_subclass_wireless),
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CLASS(PCI_CLASS_I2O, "I2O",
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pci_subclass_i2o),
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CLASS(PCI_CLASS_SATCOM, "Satellite Comm",
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pci_subclass_satcom),
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CLASS(PCI_CLASS_CRYPTO, "Crypto",
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pci_subclass_crypto),
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CLASS(PCI_CLASS_DASP, "DASP",
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pci_subclass_dasp),
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};
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static const struct pci_class *
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pci_class(pci_class_t class)
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{
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const struct pci_class *pc;
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size_t i;
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for (i = 0; i < nitems(pci_classes); i++) {
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pc = &pci_classes[i];
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if (pc->class == class)
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return (pc);
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}
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return (NULL);
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}
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static const struct pci_subclass *
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pci_subclass(const struct pci_class *pc, pci_subclass_t subclass)
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{
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const struct pci_subclass *ps;
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size_t i;
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for (i = 0; i < pc->nsubclass; i++) {
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ps = &pc->subclass[i];
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if (ps->subclass == subclass)
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return (ps);
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}
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return (NULL);
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}
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static const char *
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pci_class_name(pci_class_t class)
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{
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const struct pci_class *pc;
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pc = pci_class(class);
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if (pc == NULL)
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return ("(unknown)");
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return (pc->name);
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}
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static const char *
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pci_subclass_name(pci_class_t class, pci_subclass_t subclass)
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{
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const struct pci_class *pc;
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const struct pci_subclass *ps;
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pc = pci_class(class);
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if (pc == NULL)
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return ("(unknown)");
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ps = pci_subclass(pc, subclass);
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if (ps == NULL)
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return ("(unknown)");
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return (ps->name);
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}
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