lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[PATCH] PCI: Provide a boot parameter to disable MSI

Browse Source 
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>
This commit is contained in:
Matthew Wilcox
2006-03-05 22:33:34 -07:00
committed by Greg Kroah-Hartman
parent 5eeca8e688
commit 309e57df7b
5 changed files with 26 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/pci/pci.c
View File

@ -900,8 +900,12 @@ static int __devinit pci_setup(char *str)
if (k)
*k++ = 0;
if (*str && (str = pcibios_setup(str)) && *str) {
/* PCI layer options should be handled here */
printk(KERN_ERR "PCI: Unknown option `%s'\n", str);
if (!strcmp(str, "nomsi")) {
pci_no_msi();
} else {
printk(KERN_ERR "PCI: Unknown option `%s'\n",
str);
}
}
str = k;
}