summaryrefslogtreecommitdiffstats
path: root/Documentation
diff options
context:
space:
mode:
authorMatthew Wilcox <matthew@wil.cx>2006-03-05 22:33:34 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2006-03-23 14:35:16 -0800
commit309e57df7b766172ba137a8cbd909f88dd76e8e9 (patch)
tree74cc85977654925c76c687e597c7586b9e75629b /Documentation
parent5eeca8e688b6affba4cd85262152fdd1b274ad33 (diff)
downloadblackbird-op-linux-309e57df7b766172ba137a8cbd909f88dd76e8e9.tar.gz
blackbird-op-linux-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 'Documentation')
-rw-r--r--Documentation/kernel-parameters.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 7b7382d0f758..44a25f3f51d1 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -49,6 +49,7 @@ restrictions referred to are that the relevant option is valid if:
MCA MCA bus support is enabled.
MDA MDA console support is enabled.
MOUSE Appropriate mouse support is enabled.
+ MSI Message Signaled Interrupts (PCI).
MTD MTD support is enabled.
NET Appropriate network support is enabled.
NUMA NUMA support is enabled.
@@ -1152,6 +1153,9 @@ running once the system is up.
Mechanism 2.
nommconf [IA-32,X86_64] Disable use of MMCONFIG for PCI
Configuration
+ nomsi [MSI] If the PCI_MSI kernel config parameter is
+ enabled, this kernel boot option can be used to
+ disable the use of MSI interrupts system-wide.
nosort [IA-32] Don't sort PCI devices according to
order given by the PCI BIOS. This sorting is
done to get a device order compatible with
OpenPOWER on IntegriCloud