ioatdma: Adding support for BDX-DE ioatdma.

Adding PCI device IDs and hooks in workarounds for Broadwell DE ioatdma.

Signed-off-by: Dave Jiang <dave.jiang@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 be30718..61510ab 100644 (file)
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -214,6 +214,11 @@ static bool is_bwd_ioat(struct pci_dev *pdev)
        case PCI_DEVICE_ID_INTEL_IOAT_BWD1:
        case PCI_DEVICE_ID_INTEL_IOAT_BWD2:
        case PCI_DEVICE_ID_INTEL_IOAT_BWD3:
+       /* even though not Atom, BDX-DE has same DMA silicon */
+       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;

diff --git a/drivers/dma/ioat/hw.h b/drivers/dma/ioat/hw.h
index 62f83e9..02177ec 100644 (file)
--- a/drivers/dma/ioat/hw.h
+++ b/drivers/dma/ioat/hw.h
@@ -57,6 +57,11 @@
 #define PCI_DEVICE_ID_INTEL_IOAT_BWD2  0x0C52
 #define PCI_DEVICE_ID_INTEL_IOAT_BWD3  0x0C53
 
+#define PCI_DEVICE_ID_INTEL_IOAT_BDXDE0        0x6f50
+#define PCI_DEVICE_ID_INTEL_IOAT_BDXDE1        0x6f51
+#define PCI_DEVICE_ID_INTEL_IOAT_BDXDE2        0x6f52
+#define PCI_DEVICE_ID_INTEL_IOAT_BDXDE3        0x6f53
+
 #define IOAT_VER_1_2            0x12    /* Version 1.2 */
 #define IOAT_VER_2_0            0x20    /* Version 2.0 */
 #define IOAT_VER_3_0            0x30    /* Version 3.0 */

diff --git a/drivers/dma/ioat/pci.c b/drivers/dma/ioat/pci.c
index 1d051cd..5501eb0 100644 (file)
--- a/drivers/dma/ioat/pci.c
+++ b/drivers/dma/ioat/pci.c
@@ -111,6 +111,11 @@ static struct pci_device_id ioat_pci_tbl[] = {
        { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_IOAT_BWD2) },
        { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_IOAT_BWD3) },
 
+       { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_IOAT_BDXDE0) },
+       { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_IOAT_BDXDE1) },
+       { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_IOAT_BDXDE2) },
+       { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_IOAT_BDXDE3) },
+
        { 0, }
 };
 MODULE_DEVICE_TABLE(pci, ioat_pci_tbl);