[net-next-2.6.git] / drivers / pci / Kconfig

#
# PCI configuration
#
config ARCH_SUPPORTS_MSI
	bool
	default n

config PCI_MSI
	bool "Message Signaled Interrupts (MSI and MSI-X)"
	depends on PCI
	depends on ARCH_SUPPORTS_MSI
	help
	   This allows device drivers to enable MSI (Message Signaled
	   Interrupts).  Message Signaled Interrupts enable a device to
	   generate an interrupt using an inbound Memory Write on its
	   PCI bus instead of asserting a device IRQ pin.

	   Use of PCI MSI interrupts can be disabled at kernel boot time
	   by using the 'pci=nomsi' option.  This disables MSI for the
	   entire system.

	   If you don't know what to do here, say Y.

config PCI_DEBUG
	bool "PCI Debugging"
	depends on PCI && DEBUG_KERNEL
	help
	  Say Y here if you want the PCI core to produce a bunch of debug
	  messages to the system log.  Select this if you are having a
	  problem with PCI support and want to see more of what is going on.

	  When in doubt, say N.

config PCI_STUB
	tristate "PCI Stub driver"
	depends on PCI
	help
	  Say Y or M here if you want be able to reserve a PCI device
	  when it is going to be assigned to a guest operating system.

	  When in doubt, say N.

config XEN_PCIDEV_FRONTEND
        tristate "Xen PCI Frontend"
        depends on PCI && X86 && XEN
        select HOTPLUG
        select PCI_XEN
        default y
        help
          The PCI device frontend driver allows the kernel to import arbitrary
          PCI devices from a PCI backend to support PCI driver domains.

config XEN_PCIDEV_FE_DEBUG
        bool "Xen PCI Frontend debugging"
        depends on XEN_PCIDEV_FRONTEND && PCI_DEBUG
	help
	  Say Y here if you want the Xen PCI frontend to produce a bunch of debug
	  messages to the system log.  Select this if you are having a
	  problem with Xen PCI frontend support and want to see more of what is
	  going on.

	  When in doubt, say N.

config HT_IRQ
	bool "Interrupts on hypertransport devices"
	default y
	depends on PCI && X86_LOCAL_APIC && X86_IO_APIC
	help
	   This allows native hypertransport devices to use interrupts.

	   If unsure say Y.

config PCI_IOV
	bool "PCI IOV support"
	depends on PCI
	help
	  I/O Virtualization is a PCI feature supported by some devices
	  which allows them to create virtual devices which share their
	  physical resources.

	  If unsure, say N.

config PCI_IOAPIC
	bool
	depends on PCI
	depends on ACPI
	depends on HOTPLUG
	default y
Commit	Line	Data
1da177e4 LT	1	#
	2	# PCI configuration
	3	#
f282b970 DW	4	config ARCH_SUPPORTS_MSI
	5	bool
	6	default n
	7
1da177e4 LT	8	config PCI_MSI
	9	bool "Message Signaled Interrupts (MSI and MSI-X)"
	10	depends on PCI
f282b970	11	depends on ARCH_SUPPORTS_MSI
1da177e4 LT	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
309e57df MW	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
3196180a	22	If you don't know what to do here, say Y.
1da177e4	23
1da177e4 LT	24	config PCI_DEBUG
	25	bool "PCI Debugging"
	26	depends on PCI && DEBUG_KERNEL
	27	help
	28	Say Y here if you want the PCI core to produce a bunch of debug
	29	messages to the system log. Select this if you are having a
	30	problem with PCI support and want to see more of what is going on.
	31
	32	When in doubt, say N.
	33
c70e0d9d CW	34	config PCI_STUB
	35	tristate "PCI Stub driver"
	36	depends on PCI
	37	help
	38	Say Y or M here if you want be able to reserve a PCI device
	39	when it is going to be assigned to a guest operating system.
	40
	41	When in doubt, say N.
	42
956a9202 RW	43	config XEN_PCIDEV_FRONTEND
	44	tristate "Xen PCI Frontend"
	45	depends on PCI && X86 && XEN
	46	select HOTPLUG
	47	select PCI_XEN
	48	default y
	49	help
	50	The PCI device frontend driver allows the kernel to import arbitrary
	51	PCI devices from a PCI backend to support PCI driver domains.
	52
	53	config XEN_PCIDEV_FE_DEBUG
	54	bool "Xen PCI Frontend debugging"
	55	depends on XEN_PCIDEV_FRONTEND && PCI_DEBUG
	56	help
	57	Say Y here if you want the Xen PCI frontend to produce a bunch of debug
	58	messages to the system log. Select this if you are having a
	59	problem with Xen PCI frontend support and want to see more of what is
	60	going on.
	61
	62	When in doubt, say N.
	63
8b955b0d EB	64	config HT_IRQ
	65	bool "Interrupts on hypertransport devices"
	66	default y
fbab41cc	67	depends on PCI && X86_LOCAL_APIC && X86_IO_APIC
8b955b0d EB	68	help
	69	This allows native hypertransport devices to use interrupts.
	70
	71	If unsure say Y.
d1b054da YZ	72
	73	config PCI_IOV
	74	bool "PCI IOV support"
	75	depends on PCI
	76	help
	77	I/O Virtualization is a PCI feature supported by some devices
	78	which allows them to create virtual devices which share their
	79	physical resources.
	80
	81	If unsure, say N.
204d49a5 BH	82
	83	config PCI_IOAPIC
	84	bool
	85	depends on PCI
	86	depends on ACPI
	87	depends on HOTPLUG
	88	default y