drivers/pci/Kconfig

   1 #
   2 # PCI configuration
   3 #
   4 config ARCH_SUPPORTS_MSI
   5         bool
   6         default n
   7
   8 config PCI_MSI
   9         bool "Message Signaled Interrupts (MSI and MSI-X)"
  10         depends on PCI
  11         depends on ARCH_SUPPORTS_MSI
  12         help
  13            This allows device drivers to enable MSI (Message Signaled
  14            Interrupts).  Message Signaled Interrupts enable a device to
  15            generate an interrupt using an inbound Memory Write on its
  16            PCI bus instead of asserting a device IRQ pin.
  17
  18            Use of PCI MSI interrupts can be disabled at kernel boot time
  19            by using the 'pci=nomsi' option.  This disables MSI for the
  20            entire system.
  21
  22            If you don't know what to do here, say N.
  23
  24 config PCI_LEGACY
  25         bool "Enable deprecated pci_find_* API"
  26         depends on PCI
  27         default y
  28         help
  29           Say Y here if you want to include support for the deprecated
  30           pci_find_slot() and pci_find_device() APIs.  Most drivers have
  31           been converted over to using the proper hotplug APIs, so this
  32           option serves to include/exclude only a few drivers that are
  33           still using this API.
  34
  35 config PCI_DEBUG
  36         bool "PCI Debugging"
  37         depends on PCI && DEBUG_KERNEL
  38         help
  39           Say Y here if you want the PCI core to produce a bunch of debug
  40           messages to the system log.  Select this if you are having a
  41           problem with PCI support and want to see more of what is going on.
  42
  43           When in doubt, say N.
  44
  45 config PCI_STUB
  46         tristate "PCI Stub driver"
  47         depends on PCI
  48         help
  49           Say Y or M here if you want be able to reserve a PCI device
  50           when it is going to be assigned to a guest operating system.
  51
  52           When in doubt, say N.
  53
  54 config HT_IRQ
  55         bool "Interrupts on hypertransport devices"
  56         default y
  57         depends on PCI && X86_LOCAL_APIC && X86_IO_APIC
  58         help
  59            This allows native hypertransport devices to use interrupts.
  60
  61            If unsure say Y.
  62
  63 config PCI_IOV
  64         bool "PCI IOV support"
  65         depends on PCI
  66         help
  67           I/O Virtualization is a PCI feature supported by some devices
  68           which allows them to create virtual devices which share their
  69           physical resources.
  70
  71           If unsure, say N.