I/OAT: Add support for version 2 of ioatdma device
Add support for version 2 of the ioatdma device. This device handles
the descriptor chain and DCA services slightly differently:
- Instead of moving the dma descriptors between a busy and an idle chain,
this new version uses a single circular chain so that we don't have
rewrite the next_descriptor pointers as we add new requests, and the
device doesn't need to re-read the last descriptor.
- The new device has the DCA tags defined internally instead of needing
them defined statically.
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Cc: "Williams, Dan J" <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index cd6cdb3..1ee009e 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2332,6 +2332,7 @@
#define PCI_DEVICE_ID_INTEL_MCH_PC1 0x359a
#define PCI_DEVICE_ID_INTEL_E7525_MCH 0x359e
#define PCI_DEVICE_ID_INTEL_IOAT_CNB 0x360b
+#define PCI_DEVICE_ID_INTEL_IOAT_SNB 0x402f
#define PCI_DEVICE_ID_INTEL_IOAT_SCNB 0x65ff
#define PCI_DEVICE_ID_INTEL_TOLAPAI_0 0x5031
#define PCI_DEVICE_ID_INTEL_TOLAPAI_1 0x5032