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 #define CCW_CMD_SET_IND_ADAPTER 0x73
  42
  43 #define TYPE_VIRTIO_CCW_DEVICE "virtio-ccw-device"
  44 #define VIRTIO_CCW_DEVICE(obj) \
  45      OBJECT_CHECK(VirtioCcwDevice, (obj), TYPE_VIRTIO_CCW_DEVICE)
  46 #define VIRTIO_CCW_DEVICE_CLASS(klass) \
  47      OBJECT_CLASS_CHECK(VirtIOCCWDeviceClass, (klass), TYPE_VIRTIO_CCW_DEVICE)
  48 #define VIRTIO_CCW_DEVICE_GET_CLASS(obj) \
  49      OBJECT_GET_CLASS(VirtIOCCWDeviceClass, (obj), TYPE_VIRTIO_CCW_DEVICE)
  50
  51 typedef struct VirtioBusState VirtioCcwBusState;
  52 typedef struct VirtioBusClass VirtioCcwBusClass;
  53
  54 #define TYPE_VIRTIO_CCW_BUS "virtio-ccw-bus"
  55 #define VIRTIO_CCW_BUS(obj) \
  56      OBJECT_CHECK(VirtioCcwBus, (obj), TYPE_VIRTIO_CCW_BUS)
  57 #define VIRTIO_CCW_BUS_GET_CLASS(obj) \
  58     OBJECT_CHECK(VirtioCcwBusState, (obj), TYPE_VIRTIO_CCW_BUS)
  59 #define VIRTIO_CCW_BUS_CLASS(klass) \
  60     OBJECT_CLASS_CHECK(VirtioCcwBusClass, klass, TYPE_VIRTIO_CCW_BUS)
  61
  62 typedef struct VirtioCcwDevice VirtioCcwDevice;
  63
  64 typedef struct VirtIOCCWDeviceClass {
  65     DeviceClass parent_class;
  66     int (*init)(VirtioCcwDevice *dev);
  67     int (*exit)(VirtioCcwDevice *dev);
  68 } VirtIOCCWDeviceClass;
  69
  70 /* Change here if we want to support more feature bits. */
  71 #define VIRTIO_CCW_FEATURE_SIZE 1
  72
  73 /* Performance improves when virtqueue kick processing is decoupled from the
  74  * vcpu thread using ioeventfd for some devices. */
  75 #define VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT 1
  76 #define VIRTIO_CCW_FLAG_USE_IOEVENTFD   (1 << VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT)
  77
  78 struct VirtioCcwDevice {
  79     DeviceState parent_obj;
  80     SubchDev *sch;
  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     uint8_t thinint_isc;
  88     /* Guest provided values: */
  89     hwaddr indicators;
  90     hwaddr indicators2;
  91     hwaddr summary_indicator;
  92     uint64_t ind_bit;
  93 };
  94
  95 /* virtual css bus type */
  96 typedef struct VirtualCssBus {
  97     BusState parent_obj;
  98 } VirtualCssBus;
  99
 100 #define TYPE_VIRTUAL_CSS_BUS "virtual-css-bus"
 101 #define VIRTUAL_CSS_BUS(obj) \
 102      OBJECT_CHECK(VirtualCssBus, (obj), TYPE_VIRTUAL_CSS_BUS)
 103
 104 /* virtio-scsi-ccw */
 105
 106 #define TYPE_VIRTIO_SCSI_CCW "virtio-scsi-ccw"
 107 #define VIRTIO_SCSI_CCW(obj) \
 108         OBJECT_CHECK(VirtIOSCSICcw, (obj), TYPE_VIRTIO_SCSI_CCW)
 109
 110 typedef struct VirtIOSCSICcw {
 111     VirtioCcwDevice parent_obj;
 112     VirtIOSCSI vdev;
 113 } VirtIOSCSICcw;
 114
 115 #ifdef CONFIG_VHOST_SCSI
 116 /* vhost-scsi-ccw */
 117
 118 #define TYPE_VHOST_SCSI_CCW "vhost-scsi-ccw"
 119 #define VHOST_SCSI_CCW(obj) \
 120         OBJECT_CHECK(VHostSCSICcw, (obj), TYPE_VHOST_SCSI_CCW)
 121
 122 typedef struct VHostSCSICcw {
 123     VirtioCcwDevice parent_obj;
 124     VHostSCSI vdev;
 125 } VHostSCSICcw;
 126 #endif
 127
 128 /* virtio-blk-ccw */
 129
 130 #define TYPE_VIRTIO_BLK_CCW "virtio-blk-ccw"
 131 #define VIRTIO_BLK_CCW(obj) \
 132         OBJECT_CHECK(VirtIOBlkCcw, (obj), TYPE_VIRTIO_BLK_CCW)
 133
 134 typedef struct VirtIOBlkCcw {
 135     VirtioCcwDevice parent_obj;
 136     VirtIOBlock vdev;
 137     VirtIOBlkConf blk;
 138 } VirtIOBlkCcw;
 139
 140 /* virtio-balloon-ccw */
 141
 142 #define TYPE_VIRTIO_BALLOON_CCW "virtio-balloon-ccw"
 143 #define VIRTIO_BALLOON_CCW(obj) \
 144         OBJECT_CHECK(VirtIOBalloonCcw, (obj), TYPE_VIRTIO_BALLOON_CCW)
 145
 146 typedef struct VirtIOBalloonCcw {
 147     VirtioCcwDevice parent_obj;
 148     VirtIOBalloon vdev;
 149 } VirtIOBalloonCcw;
 150
 151 /* virtio-serial-ccw */
 152
 153 #define TYPE_VIRTIO_SERIAL_CCW "virtio-serial-ccw"
 154 #define VIRTIO_SERIAL_CCW(obj) \
 155         OBJECT_CHECK(VirtioSerialCcw, (obj), TYPE_VIRTIO_SERIAL_CCW)
 156
 157 typedef struct VirtioSerialCcw {
 158     VirtioCcwDevice parent_obj;
 159     VirtIOSerial vdev;
 160 } VirtioSerialCcw;
 161
 162 /* virtio-net-ccw */
 163
 164 #define TYPE_VIRTIO_NET_CCW "virtio-net-ccw"
 165 #define VIRTIO_NET_CCW(obj) \
 166         OBJECT_CHECK(VirtIONetCcw, (obj), TYPE_VIRTIO_NET_CCW)
 167
 168 typedef struct VirtIONetCcw {
 169     VirtioCcwDevice parent_obj;
 170     VirtIONet vdev;
 171 } VirtIONetCcw;
 172
 173 /* virtio-rng-ccw */
 174
 175 #define TYPE_VIRTIO_RNG_CCW "virtio-rng-ccw"
 176 #define VIRTIO_RNG_CCW(obj) \
 177         OBJECT_CHECK(VirtIORNGCcw, (obj), TYPE_VIRTIO_RNG_CCW)
 178
 179 typedef struct VirtIORNGCcw {
 180     VirtioCcwDevice parent_obj;
 181     VirtIORNG vdev;
 182 } VirtIORNGCcw;
 183
 184 VirtualCssBus *virtual_css_bus_init(void);
 185 void virtio_ccw_device_update_status(SubchDev *sch);
 186 VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch);
 187 #endif