Yinghai Lu wrote:
Impact: workaround BIOS that doesn't enable that bit
David reported that LSI sas doesn't work with MSI.
it turns out that BIOS doesn't enable HT MSI
8132 does support HT MSI.
add quirk to enable it
Reported-by: David Lang <david@xxxxxxx>
Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
---
drivers/pci/quirks.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6/drivers/pci/quirks.c
===================================================================
--- linux-2.6.orig/drivers/pci/quirks.c
+++ linux-2.6/drivers/pci/quirks.c
@@ -1981,7 +1981,6 @@ static void __devinit quirk_msi_ht_cap(s
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
quirk_msi_ht_cap);
-
/* The nVidia CK804 chipset may have 2 HT MSI mappings.
* MSI are supported if the MSI capability set in any of these mappings.
*/
@@ -2032,6 +2031,9 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S
PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
ht_enable_msi_mapping);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE,
+ ht_enable_msi_mapping);
+
Is there a reason why we can't just enable the HT MSI mapping for any
bridge device that has that PCI capability and is underneath an HT
bridge? Essentially the code for nv_msi_ht_cap_quirk could potentially
be applied to all bridges as it is currently for NVIDIA and ALi bridges..
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