hw/s390x/virtio-ccw.h

   1 /*
   2  * virtio ccw target definitions
   3  *
   4  * Copyright 2012 IBM Corp.
   5  * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
   6  *
   7  * This work is licensed under the terms of the GNU GPL, version 2 or (at
   8  * your option) any later version. See the COPYING file in the top-level
   9  * directory.
  10  */
  11
  12 #ifndef HW_S390X_VIRTIO_CCW_H
  13 #define HW_S390X_VIRTIO_CCW_H
  14
  15 #include <hw/virtio/virtio-blk.h>
  16 #include <hw/virtio/virtio-net.h>
  17 #include <hw/virtio/virtio-serial.h>
  18 #include <hw/virtio/virtio-scsi.h>
  19 #ifdef CONFIG_VHOST_SCSI
  20 #include <hw/virtio/vhost-scsi.h>
  21 #endif
  22 #include <hw/virtio/virtio-balloon.h>
  23 #include <hw/virtio/virtio-rng.h>
  24 #include <hw/virtio/virtio-bus.h>
  25
  26 #define VIRTUAL_CSSID 0xfe
  27
  28 #define VIRTIO_CCW_CU_TYPE 0x3832
  29 #define VIRTIO_CCW_CHPID_TYPE 0x32
  30
  31 #define CCW_CMD_SET_VQ       0x13
  32 #define CCW_CMD_VDEV_RESET   0x33
  33 #define CCW_CMD_READ_FEAT    0x12
  34 #define CCW_CMD_WRITE_FEAT   0x11
  35 #define CCW_CMD_READ_CONF    0x22
  36 #define CCW_CMD_WRITE_CONF   0x21
  37 #define CCW_CMD_WRITE_STATUS 0x31
  38 #define CCW_CMD_SET_IND      0x43
  39 #define CCW_CMD_SET_CONF_IND 0x53
  40 #define CCW_CMD_READ_VQ_CONF 0x32
  41
  42 #define TYPE_VIRTIO_CCW_DEVICE "virtio-ccw-device"
  43 #define VIRTIO_CCW_DEVICE(obj) \
  44      OBJECT_CHECK(VirtioCcwDevice, (obj), TYPE_VIRTIO_CCW_DEVICE)
  45 #define VIRTIO_CCW_DEVICE_CLASS(klass) \
  46      OBJECT_CLASS_CHECK(VirtIOCCWDeviceClass, (klass), TYPE_VIRTIO_CCW_DEVICE)
  47 #define VIRTIO_CCW_DEVICE_GET_CLASS(obj) \
  48      OBJECT_GET_CLASS(VirtIOCCWDeviceClass, (obj), TYPE_VIRTIO_CCW_DEVICE)
  49
  50 typedef struct VirtioBusState VirtioCcwBusState;
  51 typedef struct VirtioBusClass VirtioCcwBusClass;
  52
  53 #define TYPE_VIRTIO_CCW_BUS "virtio-ccw-bus"
  54 #define VIRTIO_CCW_BUS(obj) \
  55      OBJECT_CHECK(VirtioCcwBus, (obj), TYPE_VIRTIO_CCW_BUS)
  56 #define VIRTIO_CCW_BUS_GET_CLASS(obj) \
  57     OBJECT_CHECK(VirtioCcwBusState, (obj), TYPE_VIRTIO_CCW_BUS)
  58 #define VIRTIO_CCW_BUS_CLASS(klass) \
  59     OBJECT_CLASS_CHECK(VirtioCcwBusClass, klass, TYPE_VIRTIO_CCW_BUS)
  60
  61 typedef struct VirtioCcwDevice VirtioCcwDevice;
  62
  63 typedef struct VirtIOCCWDeviceClass {
  64     DeviceClass parent_class;
  65     int (*init)(VirtioCcwDevice *dev);
  66     int (*exit)(VirtioCcwDevice *dev);
  67 } VirtIOCCWDeviceClass;
  68
  69 /* Change here if we want to support more feature bits. */
  70 #define VIRTIO_CCW_FEATURE_SIZE 1
  71
  72 /* Performance improves when virtqueue kick processing is decoupled from the
  73  * vcpu thread using ioeventfd for some devices. */
  74 #define VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT 1
  75 #define VIRTIO_CCW_FLAG_USE_IOEVENTFD   (1 << VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT)
  76
  77 struct VirtioCcwDevice {
  78     DeviceState parent_obj;
  79     SubchDev *sch;
  80     VirtIODevice *vdev;
  81     char *bus_id;
  82     uint32_t host_features[VIRTIO_CCW_FEATURE_SIZE];
  83     VirtioBusState bus;
  84     bool ioeventfd_started;
  85     bool ioeventfd_disabled;
  86     uint32_t flags;
  87     /* Guest provided values: */
  88     hwaddr indicators;
  89     hwaddr indicators2;
  90 };
  91
  92 /* virtual css bus type */
  93 typedef struct VirtualCssBus {
  94     BusState parent_obj;
  95 } VirtualCssBus;
  96
  97 #define TYPE_VIRTUAL_CSS_BUS "virtual-css-bus"
  98 #define VIRTUAL_CSS_BUS(obj) \
  99      OBJECT_CHECK(VirtualCssBus, (obj), TYPE_VIRTUAL_CSS_BUS)
 100
 101 /* virtio-scsi-ccw */
 102
 103 #define TYPE_VIRTIO_SCSI_CCW "virtio-scsi-ccw"
 104 #define VIRTIO_SCSI_CCW(obj) \
 105         OBJECT_CHECK(VirtIOSCSICcw, (obj), TYPE_VIRTIO_SCSI_CCW)
 106
 107 typedef struct VirtIOSCSICcw {
 108     VirtioCcwDevice parent_obj;
 109     VirtIOSCSI vdev;
 110 } VirtIOSCSICcw;
 111
 112 #ifdef CONFIG_VHOST_SCSI
 113 /* vhost-scsi-ccw */
 114
 115 #define TYPE_VHOST_SCSI_CCW "vhost-scsi-ccw"
 116 #define VHOST_SCSI_CCW(obj) \
 117         OBJECT_CHECK(VHostSCSICcw, (obj), TYPE_VHOST_SCSI_CCW)
 118
 119 typedef struct VHostSCSICcw {
 120     VirtioCcwDevice parent_obj;
 121     VHostSCSI vdev;
 122 } VHostSCSICcw;
 123 #endif
 124
 125 /* virtio-blk-ccw */
 126
 127 #define TYPE_VIRTIO_BLK_CCW "virtio-blk-ccw"
 128 #define VIRTIO_BLK_CCW(obj) \
 129         OBJECT_CHECK(VirtIOBlkCcw, (obj), TYPE_VIRTIO_BLK_CCW)
 130
 131 typedef struct VirtIOBlkCcw {
 132     VirtioCcwDevice parent_obj;
 133     VirtIOBlock vdev;
 134     VirtIOBlkConf blk;
 135 } VirtIOBlkCcw;
 136
 137 /* virtio-balloon-ccw */
 138
 139 #define TYPE_VIRTIO_BALLOON_CCW "virtio-balloon-ccw"
 140 #define VIRTIO_BALLOON_CCW(obj) \
 141         OBJECT_CHECK(VirtIOBalloonCcw, (obj), TYPE_VIRTIO_BALLOON_CCW)
 142
 143 typedef struct VirtIOBalloonCcw {
 144     VirtioCcwDevice parent_obj;
 145     VirtIOBalloon vdev;
 146 } VirtIOBalloonCcw;
 147
 148 /* virtio-serial-ccw */
 149
 150 #define TYPE_VIRTIO_SERIAL_CCW "virtio-serial-ccw"
 151 #define VIRTIO_SERIAL_CCW(obj) \
 152         OBJECT_CHECK(VirtioSerialCcw, (obj), TYPE_VIRTIO_SERIAL_CCW)
 153
 154 typedef struct VirtioSerialCcw {
 155     VirtioCcwDevice parent_obj;
 156     VirtIOSerial vdev;
 157 } VirtioSerialCcw;
 158
 159 /* virtio-net-ccw */
 160
 161 #define TYPE_VIRTIO_NET_CCW "virtio-net-ccw"
 162 #define VIRTIO_NET_CCW(obj) \
 163         OBJECT_CHECK(VirtIONetCcw, (obj), TYPE_VIRTIO_NET_CCW)
 164
 165 typedef struct VirtIONetCcw {
 166     VirtioCcwDevice parent_obj;
 167     VirtIONet vdev;
 168 } VirtIONetCcw;
 169
 170 /* virtio-rng-ccw */
 171
 172 #define TYPE_VIRTIO_RNG_CCW "virtio-rng-ccw"
 173 #define VIRTIO_RNG_CCW(obj) \
 174         OBJECT_CHECK(VirtIORNGCcw, (obj), TYPE_VIRTIO_RNG_CCW)
 175
 176 typedef struct VirtIORNGCcw {
 177     VirtioCcwDevice parent_obj;
 178     VirtIORNG vdev;
 179 } VirtIORNGCcw;
 180
 181 VirtualCssBus *virtual_css_bus_init(void);
 182 void virtio_ccw_device_update_status(SubchDev *sch);
 183 VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch);
 184 #endif