drivers/network/dd/netkvm/virtio/virtio_pci_common.h

   1 #ifndef _DRIVERS_VIRTIO_VIRTIO_PCI_COMMON_H
   2 #define _DRIVERS_VIRTIO_VIRTIO_PCI_COMMON_H
   3 /*
   4  * Virtio PCI driver - APIs for common functionality for all device versions
   5  *
   6  * Copyright IBM Corp. 2007
   7  * Copyright Red Hat, Inc. 2014
   8  *
   9  * Authors:
  10  *  Anthony Liguori  <aliguori@us.ibm.com>
  11  *  Rusty Russell <rusty@rustcorp.com.au>
  12  *  Michael S. Tsirkin <mst@redhat.com>
  13  *
  14  * Redistribution and use in source and binary forms, with or without
  15  * modification, are permitted provided that the following conditions
  16  * are met :
  17  * 1. Redistributions of source code must retain the above copyright
  18  *    notice, this list of conditions and the following disclaimer.
  19  * 2. Redistributions in binary form must reproduce the above copyright
  20  *    notice, this list of conditions and the following disclaimer in the
  21  *    documentation and / or other materials provided with the distribution.
  22  * 3. Neither the names of the copyright holders nor the names of their contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28  * ARE DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE
  29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  35  * SUCH DAMAGE.
  36  */
  37
  38 #define ioread8(vdev, addr) \
  39     vdev->system->vdev_read_byte((ULONG_PTR)(addr))
  40 #define ioread16(vdev, addr) \
  41     vdev->system->vdev_read_word((ULONG_PTR)(addr))
  42 #define ioread32(vdev, addr) \
  43     vdev->system->vdev_read_dword((ULONG_PTR)(addr))
  44 #define iowrite8(vdev, val, addr) \
  45     vdev->system->vdev_write_byte((ULONG_PTR)(addr), val)
  46 #define iowrite16(vdev, val, addr) \
  47     vdev->system->vdev_write_word((ULONG_PTR)(addr), val)
  48 #define iowrite32(vdev, val, addr) \
  49     vdev->system->vdev_write_dword((ULONG_PTR)(addr), val)
  50 #define iowrite64_twopart(vdev, val, lo_addr, hi_addr) \
  51     vdev->system->vdev_write_dword((ULONG_PTR)(lo_addr), (u32)(val)); \
  52     vdev->system->vdev_write_dword((ULONG_PTR)(hi_addr), (val) >> 32)
  53
  54 #define mem_alloc_contiguous_pages(vdev, size) \
  55     vdev->system->mem_alloc_contiguous_pages(vdev->DeviceContext, size)
  56 #define mem_free_contiguous_pages(vdev, virt) \
  57     vdev->system->mem_free_contiguous_pages(vdev->DeviceContext, virt)
  58 #define mem_get_physical_address(vdev, virt) \
  59     vdev->system->mem_get_physical_address(vdev->DeviceContext, virt)
  60 #define mem_alloc_nonpaged_block(vdev, size) \
  61     vdev->system->mem_alloc_nonpaged_block(vdev->DeviceContext, size)
  62 #define mem_free_nonpaged_block(vdev, addr) \
  63     vdev->system->mem_free_nonpaged_block(vdev->DeviceContext, addr)
  64
  65 #define pci_read_config_byte(vdev, where, bVal) \
  66     vdev->system->pci_read_config_byte(vdev->DeviceContext, where, bVal)
  67 #define pci_read_config_word(vdev, where, wVal) \
  68     vdev->system->pci_read_config_word(vdev->DeviceContext, where, wVal)
  69 #define pci_read_config_dword(vdev, where, dwVal) \
  70     vdev->system->pci_read_config_dword(vdev->DeviceContext, where, dwVal)
  71
  72 #define pci_get_resource_len(vdev, bar) \
  73     vdev->system->pci_get_resource_len(vdev->DeviceContext, bar)
  74 #define pci_map_address_range(vdev, bar, offset, maxlen) \
  75     vdev->system->pci_map_address_range(vdev->DeviceContext, bar, offset, maxlen)
  76
  77 #define vdev_get_msix_vector(vdev, queue) \
  78     vdev->system->vdev_get_msix_vector(vdev->DeviceContext, queue)
  79 #define vdev_sleep(vdev, msecs) \
  80     vdev->system->vdev_sleep(vdev->DeviceContext, msecs)
  81
  82 /* the notify function used when creating a virt queue */
  83 void vp_notify(struct virtqueue *vq);
  84
  85 NTSTATUS vio_legacy_initialize(VirtIODevice *vdev);
  86 NTSTATUS vio_modern_initialize(VirtIODevice *vdev);
  87
  88 #endif