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Commit 9ca1c5f2 authored Feb 13, 2015 by Dave Jiang Committed by Vinod Koul Mar 05, 2015

dmaengine: ioatdma: workaround for incorrect DMACAP register



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

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

parent 6eb9d3c1

drivers/dma/ioat/dma_v3.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -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;