@@ -3333,6 +3333,20 @@ int pci_dev_specific_reset(struct pci_dev *dev, int probe)
return -ENOTTY;
}
+static void quirk_dma_func0_alias(struct pci_dev *dev)
+{
+ if (PCI_FUNC(dev->devfn) != 0)
+ dev->dma_func_alias |= (1 << 0);
+}
+
+/*
+ * https://bugzilla.redhat.com/show_bug.cgi?id=605888
+ *
+ * Some Ricoh devices use function 0 as the PCIe requester ID for DMA.
+ */
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_RICOH, 0xe832, quirk_dma_func0_alias);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_RICOH, 0xe476, quirk_dma_func0_alias);
+
static struct pci_dev *pci_func_0_dma_source(struct pci_dev *dev)
{
if (!PCI_FUNC(dev->devfn))
The existing quirk for these devices doesn't really solve the problem, re-implement it using the DMA alias iterator. We'll come back later and remove the existing quirk and dma_source interface. Note that device ID 0xe822 is typically function 0 and 0xe230 has been tested to not need the quirk and are therefore removed versus the equivalent dma_source quirk. If the exist in other configurations we can re-add them. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> --- drivers/pci/quirks.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html