ioat: move to drivers/dma/ioat/

When first created the ioat driver was the only inhabitant of
drivers/dma/.  Now, it is the only multi-file (more than a .c and a .h)
driver in the directory.  Moving it to an ioat/ subdirectory allows the
naming convention to be cleaned up, and allows for future splitting of
the source files by hardware version (v1, v2, and v3).

Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/drivers/dma/ioat/hw.h b/drivers/dma/ioat/hw.h
new file mode 100644
index 0000000..afa57ee
--- /dev/null
+++ b/drivers/dma/ioat/hw.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright(c) 2004 - 2009 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called COPYING.
+ */
+#ifndef _IOAT_HW_H_
+#define _IOAT_HW_H_
+
+/* PCI Configuration Space Values */
+#define IOAT_PCI_VID            0x8086
+
+/* CB device ID's */
+#define IOAT_PCI_DID_5000       0x1A38
+#define IOAT_PCI_DID_CNB        0x360B
+#define IOAT_PCI_DID_SCNB       0x65FF
+#define IOAT_PCI_DID_SNB        0x402F
+
+#define IOAT_PCI_RID            0x00
+#define IOAT_PCI_SVID           0x8086
+#define IOAT_PCI_SID            0x8086
+#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 */
+
+struct ioat_dma_descriptor {
+	uint32_t	size;
+	uint32_t	ctl;
+	uint64_t	src_addr;
+	uint64_t	dst_addr;
+	uint64_t	next;
+	uint64_t	rsv1;
+	uint64_t	rsv2;
+	uint64_t	user1;
+	uint64_t	user2;
+};
+
+#define IOAT_DMA_DESCRIPTOR_CTL_INT_GN	0x00000001
+#define IOAT_DMA_DESCRIPTOR_CTL_SRC_SN	0x00000002
+#define IOAT_DMA_DESCRIPTOR_CTL_DST_SN	0x00000004
+#define IOAT_DMA_DESCRIPTOR_CTL_CP_STS	0x00000008
+#define IOAT_DMA_DESCRIPTOR_CTL_FRAME	0x00000010
+#define IOAT_DMA_DESCRIPTOR_NUL		0x00000020
+#define IOAT_DMA_DESCRIPTOR_CTL_SP_BRK	0x00000040
+#define IOAT_DMA_DESCRIPTOR_CTL_DP_BRK	0x00000080
+#define IOAT_DMA_DESCRIPTOR_CTL_BNDL	0x00000100
+#define IOAT_DMA_DESCRIPTOR_CTL_DCA	0x00000200
+#define IOAT_DMA_DESCRIPTOR_CTL_BUFHINT	0x00000400
+
+#define IOAT_DMA_DESCRIPTOR_CTL_OPCODE_CONTEXT	0xFF000000
+#define IOAT_DMA_DESCRIPTOR_CTL_OPCODE_DMA	0x00000000
+
+#define IOAT_DMA_DESCRIPTOR_CTL_CONTEXT_DCA	0x00000001
+#define IOAT_DMA_DESCRIPTOR_CTL_OPCODE_MASK	0xFF000000
+
+#endif