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authorDavid Miller <davem@davemloft.net>2007-10-25 04:15:53 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2007-11-05 16:35:16 -0500
commit1d84b5424efbcce69a1c955ba181147d23d43a14 (patch)
tree543e1a8180eca6ecb89aee30105f4abb07b876e6 /drivers/pci/quirks.c
parent2cc31879f8cfa0efc74fe7e58ab4e01ef5908730 (diff)
PCI: Add MSI quirk for ServerWorks HT1000 PCIX bridge.
This is the fix for the following problem: https://bugzilla.redhat.com/show_bug.cgi?id=227657 The bnx2 device 5706 complains about MSI not working behind a ServerWorks HT1000 PCIX bridge. An earlier commit to fix the problem: e3008dedff4bdc96a5f67224cd3d8d12237082a0: "PCI: disable MSI by default on systems with Serverworks HT1000 chips" was not entirely correct, and has been reverted. MSI does not work on the PCIX bus because the BIOS did not set the HT_MSI_FLAGS_ENABLE bit in the HyperTransport MSI capability on the bridge. We use the existing quirk_msi_ht_cap() to detect the problem and disable MSI in all buses behind it. Signed-off-by: Michael Chan <mchan@broadcom.com> Cc: Anantha Subramanyam <ananth@broadcom.com> Cc: Naren Sankar <nsankar@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pci/quirks.c')
-rw-r--r--drivers/pci/quirks.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index f5999f569cc8..f975f7fccb1d 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1677,6 +1677,9 @@ static void __devinit quirk_msi_ht_cap(struct pci_dev *dev)
1677} 1677}
1678DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE, 1678DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
1679 quirk_msi_ht_cap); 1679 quirk_msi_ht_cap);
1680DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS,
1681 PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
1682 quirk_msi_ht_cap);
1680 1683
1681/* The nVidia CK804 chipset may have 2 HT MSI mappings. 1684/* The nVidia CK804 chipset may have 2 HT MSI mappings.
1682 * MSI are supported if the MSI capability set in any of these mappings. 1685 * MSI are supported if the MSI capability set in any of these mappings.