drivers/dma/ioatdma_hw.h

   1 /*
   2  * Copyright(c) 2004 - 2006 Intel Corporation. All rights reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License as published by the Free
   6  * Software Foundation; either version 2 of the License, or (at your option)
   7  * any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc., 59
  16  * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called COPYING.
  20  */
  21 #ifndef _IOAT_HW_H_
  22 #define _IOAT_HW_H_
  23
  24 /* PCI Configuration Space Values */
  25 #define IOAT_PCI_VID                    0x8086
  26 #define IOAT_PCI_DID                    0x1A38
  27 #define IOAT_PCI_RID                    0x00
  28 #define IOAT_PCI_SVID                   0x8086
  29 #define IOAT_PCI_SID                    0x8086
  30 #define IOAT_VER_1_2                    0x12    /* Version 1.2 */
  31
  32 struct ioat_dma_descriptor {
  33         uint32_t        size;
  34         uint32_t        ctl;
  35         uint64_t        src_addr;
  36         uint64_t        dst_addr;
  37         uint64_t        next;
  38         uint64_t        rsv1;
  39         uint64_t        rsv2;
  40         uint64_t        user1;
  41         uint64_t        user2;
  42 };
  43
  44 #define IOAT_DMA_DESCRIPTOR_CTL_INT_GN  0x00000001
  45 #define IOAT_DMA_DESCRIPTOR_CTL_SRC_SN  0x00000002
  46 #define IOAT_DMA_DESCRIPTOR_CTL_DST_SN  0x00000004
  47 #define IOAT_DMA_DESCRIPTOR_CTL_CP_STS  0x00000008
  48 #define IOAT_DMA_DESCRIPTOR_CTL_FRAME   0x00000010
  49 #define IOAT_DMA_DESCRIPTOR_NUL         0x00000020
  50 #define IOAT_DMA_DESCRIPTOR_OPCODE      0xFF000000
  51
  52 #endif