drivers/dma/ioat/hw.h

   1 /*
   2  * Copyright(c) 2004 - 2009 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_MMIO_BAR           0
  27
  28 /* CB device ID's */
  29 #define IOAT_PCI_DID_5000       0x1A38
  30 #define IOAT_PCI_DID_CNB        0x360B
  31 #define IOAT_PCI_DID_SCNB       0x65FF
  32 #define IOAT_PCI_DID_SNB        0x402F
  33
  34 #define IOAT_PCI_RID            0x00
  35 #define IOAT_PCI_SVID           0x8086
  36 #define IOAT_PCI_SID            0x8086
  37 #define IOAT_VER_1_2            0x12    /* Version 1.2 */
  38 #define IOAT_VER_2_0            0x20    /* Version 2.0 */
  39 #define IOAT_VER_3_0            0x30    /* Version 3.0 */
  40
  41 struct ioat_dma_descriptor {
  42         uint32_t        size;
  43         union {
  44                 uint32_t ctl;
  45                 struct {
  46                         unsigned int int_en:1;
  47                         unsigned int src_snoop_dis:1;
  48                         unsigned int dest_snoop_dis:1;
  49                         unsigned int compl_write:1;
  50                         unsigned int fence:1;
  51                         unsigned int null:1;
  52                         unsigned int src_brk:1;
  53                         unsigned int dest_brk:1;
  54                         unsigned int bundle:1;
  55                         unsigned int dest_dca:1;
  56                         unsigned int hint:1;
  57                         unsigned int rsvd2:13;
  58                         unsigned int op:8;
  59                 } ctl_f;
  60         };
  61         uint64_t        src_addr;
  62         uint64_t        dst_addr;
  63         uint64_t        next;
  64         uint64_t        rsv1;
  65         uint64_t        rsv2;
  66         uint64_t        user1;
  67         uint64_t        user2;
  68 };
  69 #endif