b13d396227
This simplifies the code and removes the ioeventfd_started and ioeventfd_set_started callback. The only difference is in how virtio-ccw handles an error---it doesn't disable ioeventfd forever anymore. It was the only backend to do so, and if desired this behavior should be implemented in virtio-bus.c. Instead of ioeventfd_started, the ioeventfd_assign callback now determines whether the virtio bus supports host notifiers. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
214 lines
5.8 KiB
C
214 lines
5.8 KiB
C
/*
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* virtio ccw target definitions
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*
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* Copyright 2012,2015 IBM Corp.
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* Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
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* Pierre Morel <pmorel@linux.vnet.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or (at
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* your option) any later version. See the COPYING file in the top-level
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* directory.
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*/
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#ifndef HW_S390X_VIRTIO_CCW_H
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#define HW_S390X_VIRTIO_CCW_H
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#include "hw/virtio/virtio-blk.h"
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#include "hw/virtio/virtio-net.h"
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#include "hw/virtio/virtio-serial.h"
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#include "hw/virtio/virtio-scsi.h"
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#ifdef CONFIG_VHOST_SCSI
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#include "hw/virtio/vhost-scsi.h"
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#endif
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#include "hw/virtio/virtio-balloon.h"
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#include "hw/virtio/virtio-rng.h"
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#include "hw/virtio/virtio-bus.h"
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#ifdef CONFIG_VHOST_VSOCK
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#include "hw/virtio/vhost-vsock.h"
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#endif /* CONFIG_VHOST_VSOCK */
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#include "hw/s390x/s390_flic.h"
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#include "hw/s390x/css.h"
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#include "ccw-device.h"
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#include "hw/s390x/css-bridge.h"
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#define VIRTIO_CCW_CU_TYPE 0x3832
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#define VIRTIO_CCW_CHPID_TYPE 0x32
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#define CCW_CMD_SET_VQ 0x13
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#define CCW_CMD_VDEV_RESET 0x33
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#define CCW_CMD_READ_FEAT 0x12
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#define CCW_CMD_WRITE_FEAT 0x11
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#define CCW_CMD_READ_CONF 0x22
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#define CCW_CMD_WRITE_CONF 0x21
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#define CCW_CMD_WRITE_STATUS 0x31
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#define CCW_CMD_SET_IND 0x43
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#define CCW_CMD_SET_CONF_IND 0x53
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#define CCW_CMD_READ_VQ_CONF 0x32
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#define CCW_CMD_READ_STATUS 0x72
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#define CCW_CMD_SET_IND_ADAPTER 0x73
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#define CCW_CMD_SET_VIRTIO_REV 0x83
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#define TYPE_VIRTIO_CCW_DEVICE "virtio-ccw-device"
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#define VIRTIO_CCW_DEVICE(obj) \
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OBJECT_CHECK(VirtioCcwDevice, (obj), TYPE_VIRTIO_CCW_DEVICE)
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#define VIRTIO_CCW_DEVICE_CLASS(klass) \
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OBJECT_CLASS_CHECK(VirtIOCCWDeviceClass, (klass), TYPE_VIRTIO_CCW_DEVICE)
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#define VIRTIO_CCW_DEVICE_GET_CLASS(obj) \
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OBJECT_GET_CLASS(VirtIOCCWDeviceClass, (obj), TYPE_VIRTIO_CCW_DEVICE)
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typedef struct VirtioBusState VirtioCcwBusState;
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typedef struct VirtioBusClass VirtioCcwBusClass;
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#define TYPE_VIRTIO_CCW_BUS "virtio-ccw-bus"
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#define VIRTIO_CCW_BUS(obj) \
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OBJECT_CHECK(VirtioCcwBus, (obj), TYPE_VIRTIO_CCW_BUS)
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#define VIRTIO_CCW_BUS_GET_CLASS(obj) \
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OBJECT_CHECK(VirtioCcwBusState, (obj), TYPE_VIRTIO_CCW_BUS)
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#define VIRTIO_CCW_BUS_CLASS(klass) \
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OBJECT_CLASS_CHECK(VirtioCcwBusClass, klass, TYPE_VIRTIO_CCW_BUS)
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typedef struct VirtioCcwDevice VirtioCcwDevice;
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typedef struct VirtIOCCWDeviceClass {
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CCWDeviceClass parent_class;
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void (*realize)(VirtioCcwDevice *dev, Error **errp);
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int (*exit)(VirtioCcwDevice *dev);
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} VirtIOCCWDeviceClass;
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/* Performance improves when virtqueue kick processing is decoupled from the
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* vcpu thread using ioeventfd for some devices. */
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#define VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT 1
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#define VIRTIO_CCW_FLAG_USE_IOEVENTFD (1 << VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT)
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struct VirtioCcwDevice {
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CcwDevice parent_obj;
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int revision;
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uint32_t max_rev;
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VirtioBusState bus;
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uint32_t flags;
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uint8_t thinint_isc;
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AdapterRoutes routes;
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/* Guest provided values: */
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IndAddr *indicators;
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IndAddr *indicators2;
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IndAddr *summary_indicator;
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uint64_t ind_bit;
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};
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/* The maximum virtio revision we support. */
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#define VIRTIO_CCW_MAX_REV 2
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static inline int virtio_ccw_rev_max(VirtioCcwDevice *dev)
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{
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return dev->max_rev;
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}
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/* virtio-scsi-ccw */
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#define TYPE_VIRTIO_SCSI_CCW "virtio-scsi-ccw"
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#define VIRTIO_SCSI_CCW(obj) \
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OBJECT_CHECK(VirtIOSCSICcw, (obj), TYPE_VIRTIO_SCSI_CCW)
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typedef struct VirtIOSCSICcw {
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VirtioCcwDevice parent_obj;
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VirtIOSCSI vdev;
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} VirtIOSCSICcw;
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#ifdef CONFIG_VHOST_SCSI
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/* vhost-scsi-ccw */
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#define TYPE_VHOST_SCSI_CCW "vhost-scsi-ccw"
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#define VHOST_SCSI_CCW(obj) \
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OBJECT_CHECK(VHostSCSICcw, (obj), TYPE_VHOST_SCSI_CCW)
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typedef struct VHostSCSICcw {
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VirtioCcwDevice parent_obj;
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VHostSCSI vdev;
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} VHostSCSICcw;
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#endif
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/* virtio-blk-ccw */
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#define TYPE_VIRTIO_BLK_CCW "virtio-blk-ccw"
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#define VIRTIO_BLK_CCW(obj) \
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OBJECT_CHECK(VirtIOBlkCcw, (obj), TYPE_VIRTIO_BLK_CCW)
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typedef struct VirtIOBlkCcw {
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VirtioCcwDevice parent_obj;
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VirtIOBlock vdev;
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} VirtIOBlkCcw;
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/* virtio-balloon-ccw */
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#define TYPE_VIRTIO_BALLOON_CCW "virtio-balloon-ccw"
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#define VIRTIO_BALLOON_CCW(obj) \
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OBJECT_CHECK(VirtIOBalloonCcw, (obj), TYPE_VIRTIO_BALLOON_CCW)
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typedef struct VirtIOBalloonCcw {
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VirtioCcwDevice parent_obj;
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VirtIOBalloon vdev;
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} VirtIOBalloonCcw;
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/* virtio-serial-ccw */
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#define TYPE_VIRTIO_SERIAL_CCW "virtio-serial-ccw"
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#define VIRTIO_SERIAL_CCW(obj) \
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OBJECT_CHECK(VirtioSerialCcw, (obj), TYPE_VIRTIO_SERIAL_CCW)
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typedef struct VirtioSerialCcw {
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VirtioCcwDevice parent_obj;
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VirtIOSerial vdev;
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} VirtioSerialCcw;
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/* virtio-net-ccw */
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#define TYPE_VIRTIO_NET_CCW "virtio-net-ccw"
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#define VIRTIO_NET_CCW(obj) \
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OBJECT_CHECK(VirtIONetCcw, (obj), TYPE_VIRTIO_NET_CCW)
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typedef struct VirtIONetCcw {
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VirtioCcwDevice parent_obj;
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VirtIONet vdev;
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} VirtIONetCcw;
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/* virtio-rng-ccw */
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#define TYPE_VIRTIO_RNG_CCW "virtio-rng-ccw"
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#define VIRTIO_RNG_CCW(obj) \
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OBJECT_CHECK(VirtIORNGCcw, (obj), TYPE_VIRTIO_RNG_CCW)
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typedef struct VirtIORNGCcw {
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VirtioCcwDevice parent_obj;
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VirtIORNG vdev;
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} VirtIORNGCcw;
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VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch);
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#ifdef CONFIG_VIRTFS
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#include "hw/9pfs/virtio-9p.h"
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#define TYPE_VIRTIO_9P_CCW "virtio-9p-ccw"
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#define VIRTIO_9P_CCW(obj) \
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OBJECT_CHECK(V9fsCCWState, (obj), TYPE_VIRTIO_9P_CCW)
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typedef struct V9fsCCWState {
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VirtioCcwDevice parent_obj;
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V9fsVirtioState vdev;
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} V9fsCCWState;
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#endif /* CONFIG_VIRTFS */
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#ifdef CONFIG_VHOST_VSOCK
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#define TYPE_VHOST_VSOCK_CCW "vhost-vsock-ccw"
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#define VHOST_VSOCK_CCW(obj) \
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OBJECT_CHECK(VHostVSockCCWState, (obj), TYPE_VHOST_VSOCK_CCW)
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typedef struct VHostVSockCCWState {
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VirtioCcwDevice parent_obj;
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VHostVSock vdev;
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} VHostVSockCCWState;
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#endif /* CONFIG_VHOST_VSOCK */
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#endif
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