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PCI: Add quirk for devices which disable MSI when INTX_DISABLE is set.

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A reasonably common problem with some devices is that they will
disable MSI generation when the INTX_DISABLE bit is set in the
PCI_COMMAND register.

Quirk this explicitly, guarding the pci_intx() calls in msi.c with
this quirk indication.

The first entries for this quirk are for 5714 and 5780 Tigon3 chips,
and thus we can remove the workaround code from the tg3.c driver.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Michael Chan <mchan@broadcom.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
David Miller
2007-10-25 01:16:30 -07:00
committed by Greg Kroah-Hartman
parent 1d84b5424e
commit ba698ad4b7
4 changed files with 45 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
drivers/pci/quirks.c
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@@ -1707,4 +1707,28 @@ static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
quirk_nvidia_ck804_msi_ht_cap);
static void __devinit quirk_msi_intx_disable_bug(struct pci_dev *dev)
{
dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_TIGON3_5780,
quirk_msi_intx_disable_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_TIGON3_5780S,
quirk_msi_intx_disable_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_TIGON3_5714,
quirk_msi_intx_disable_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_TIGON3_5714S,
quirk_msi_intx_disable_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_TIGON3_5715,
quirk_msi_intx_disable_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_TIGON3_5715S,
quirk_msi_intx_disable_bug);
#endif /* CONFIG_PCI_MSI */