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authorMatthew Wilcox <matthew@wil.cx>2006-03-06 00:33:34 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2006-03-23 17:35:16 -0500
commit309e57df7b766172ba137a8cbd909f88dd76e8e9 (patch)
tree74cc85977654925c76c687e597c7586b9e75629b /Documentation
parent5eeca8e688b6affba4cd85262152fdd1b274ad33 (diff)
[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:
49 MCA MCA bus support is enabled. 49 MCA MCA bus support is enabled.
50 MDA MDA console support is enabled. 50 MDA MDA console support is enabled.
51 MOUSE Appropriate mouse support is enabled. 51 MOUSE Appropriate mouse support is enabled.
52 MSI Message Signaled Interrupts (PCI).
52 MTD MTD support is enabled. 53 MTD MTD support is enabled.
53 NET Appropriate network support is enabled. 54 NET Appropriate network support is enabled.
54 NUMA NUMA support is enabled. 55 NUMA NUMA support is enabled.
@@ -1152,6 +1153,9 @@ running once the system is up.
1152 Mechanism 2. 1153 Mechanism 2.
1153 nommconf [IA-32,X86_64] Disable use of MMCONFIG for PCI 1154 nommconf [IA-32,X86_64] Disable use of MMCONFIG for PCI
1154 Configuration 1155 Configuration
1156 nomsi [MSI] If the PCI_MSI kernel config parameter is
1157 enabled, this kernel boot option can be used to
1158 disable the use of MSI interrupts system-wide.
1155 nosort [IA-32] Don't sort PCI devices according to 1159 nosort [IA-32] Don't sort PCI devices according to
1156 order given by the PCI BIOS. This sorting is 1160 order given by the PCI BIOS. This sorting is
1157 done to get a device order compatible with 1161 done to get a device order compatible with