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dmaengine: ioatdma: workaround for incorrect DMACAP register

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BDX-DE IOATDMA reports incorrect DMACAP register for PQ related
ops. Ignoring those bits.

Signed-off-by: Dave Jiang <[email protected]>
Acked-by: Dan Williams <[email protected]>
Signed-off-by: Vinod Koul <[email protected]>
This commit is contained in:
Dave Jiang 2015-02-13 12:23:53 -07:00 • committed by Vinod Koul
commit 9ca1c5f2ab
1 changed files with 4 additions and 0 deletions
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4
drivers/dma/ioat/dma_v3.c
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@ -230,6 +230,10 @@ static bool is_bwd_noraid(struct pci_dev *pdev)
switch (pdev->device) {
case PCI_DEVICE_ID_INTEL_IOAT_BWD2:
case PCI_DEVICE_ID_INTEL_IOAT_BWD3:
case PCI_DEVICE_ID_INTEL_IOAT_BDXDE0:
case PCI_DEVICE_ID_INTEL_IOAT_BDXDE1:
case PCI_DEVICE_ID_INTEL_IOAT_BDXDE2:
case PCI_DEVICE_ID_INTEL_IOAT_BDXDE3:
return true;
default:
return false;