TWxSoftware/twx-linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[PATCH] pci-quirks: disable MSI on RS400-200 and RS480

Browse Source 
MSI doesn't work on RS400-200 and RS480 requiring pci=nomsi kernel boot
parameter for ahci to work.  This patch renames quirk_svw_msi() to
quirk_disable_all_msi() and use it to disable MSI on those chips.

  http://thread.gmane.org/gmane.linux.ide/17820
  http://thread.gmane.org/gmane.linux.ide/17516
  https://bugzilla.novell.com/show_bug.cgi?id=263893

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Matí-as Alejandro Torres <torresmat@gmail.com>
Cc: Greg K-H <greg@kroah.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
This commit is contained in:
Tejun Heo
2007-05-10 22:58:51 -07:00
committed by Chris Wright
parent 82f6951e53
commit 19315d12fd
1 changed files with 9 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/pci/quirks.c
+9 -7
View File
@@ -1737,18 +1737,20 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
quirk_nvidia_ck804_pcie_aer_ext_cap);
#ifdef CONFIG_PCI_MSI
/* The Serverworks PCI-X chipset does not support MSI. We cannot easily rely
* on setting PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
* some other busses controlled by the chipset even if Linux is not aware of it.
* Instead of setting the flag on all busses in the machine, simply disable MSI
* globally.
/* Some chipsets do not support MSI. We cannot easily rely on setting
* PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
* some other busses controlled by the chipset even if Linux is not
* aware of it. Instead of setting the flag on all busses in the
* machine, simply disable MSI globally.
*/
static void __init quirk_svw_msi(struct pci_dev *dev)
static void __init quirk_disable_all_msi(struct pci_dev *dev)
{
pci_no_msi();
printk(KERN_WARNING "PCI: MSI quirk detected. MSI deactivated.\n");
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_svw_msi);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
/* Disable MSI on chipsets that are known to not support it */
static void __devinit quirk_disable_msi(struct pci_dev *dev)