| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | # |
| 2 | # PCI configuration |
| 3 | # |
| Dan Williams | f282b97 | 2007-04-18 18:46:20 +1000 | [diff] [blame] | 4 | config ARCH_SUPPORTS_MSI |
| 5 | bool |
| 6 | default n |
| 7 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | config PCI_MSI |
| 9 | bool "Message Signaled Interrupts (MSI and MSI-X)" |
| 10 | depends on PCI |
| Dan Williams | f282b97 | 2007-04-18 18:46:20 +1000 | [diff] [blame] | 11 | depends on ARCH_SUPPORTS_MSI |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| Matthew Wilcox | 309e57d | 2006-03-05 22:33:34 -0700 | [diff] [blame] | 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 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | If you don't know what to do here, say N. |
| 23 | |
| Jeff Garzik | bd3989e | 2007-10-29 09:48:09 -0400 | [diff] [blame] | 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 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| Chris Wright | c70e0d9 | 2008-11-25 21:17:13 -0800 | [diff] [blame] | 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 | |
| Eric W. Biederman | 8b955b0 | 2006-10-04 02:16:55 -0700 | [diff] [blame] | 54 | config HT_IRQ |
| 55 | bool "Interrupts on hypertransport devices" |
| 56 | default y |
| Adrian Bunk | fbab41c | 2006-10-11 01:22:04 -0700 | [diff] [blame] | 57 | depends on PCI && X86_LOCAL_APIC && X86_IO_APIC |
| Eric W. Biederman | 8b955b0 | 2006-10-04 02:16:55 -0700 | [diff] [blame] | 58 | help |
| 59 | This allows native hypertransport devices to use interrupts. |
| 60 | |
| 61 | If unsure say Y. |
| Yu Zhao | d1b054d | 2009-03-20 11:25:11 +0800 | [diff] [blame] | 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. |