From: Dave Jiang <dave.jiang@intel.com>
Date: Fri, 13 Feb 2015 19:23:53 +0000 (-0700)
Subject: dmaengine: ioatdma: workaround for incorrect DMACAP register
X-Git-Tag: v4.0-rc3~8^2~3
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=9ca1c5f2ab9d5bc8955a2cc7ad36ba7074dd7c60;p=linux.git

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>
---

diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index 77a6dcf25b98..194ec20c9408 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -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;