diff options
| author | Matthew Wilcox <matthew@wil.cx> | 2006-03-05 22:33:34 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-03-23 14:35:16 -0800 |
| commit | 309e57df7b766172ba137a8cbd909f88dd76e8e9 (patch) | |
| tree | 74cc85977654925c76c687e597c7586b9e75629b /drivers/pci/Kconfig | |
| parent | 5eeca8e688b6affba4cd85262152fdd1b274ad33 (diff) | |
| download | lwn-309e57df7b766172ba137a8cbd909f88dd76e8e9.tar.gz lwn-309e57df7b766172ba137a8cbd909f88dd76e8e9.zip | |
[PATCH] PCI: Provide a boot parameter to disable MSI
Several drivers are starting to grow options to disable MSI. However,
it's often a host chipset issue, not something which individual drivers
should handle. So we add the pci=nomsi kernel parameter to allow the user
to disable MSI modes for systems we haven't added to the quirk list yet.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pci/Kconfig')
| -rw-r--r-- | drivers/pci/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig index d3dcce815d15..4d762fc4878c 100644 --- a/drivers/pci/Kconfig +++ b/drivers/pci/Kconfig @@ -11,6 +11,10 @@ config PCI_MSI 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 N. config PCI_DEBUG |