diff options
Diffstat (limited to 'drivers/s390/cio/vfio_ccw_private.h')
-rw-r--r-- | drivers/s390/cio/vfio_ccw_private.h | 37 |
1 files changed, 25 insertions, 12 deletions
diff --git a/drivers/s390/cio/vfio_ccw_private.h b/drivers/s390/cio/vfio_ccw_private.h index bd5fb81456af..b441ae6700fd 100644 --- a/drivers/s390/cio/vfio_ccw_private.h +++ b/drivers/s390/cio/vfio_ccw_private.h @@ -68,9 +68,23 @@ struct vfio_ccw_crw { }; /** + * struct vfio_ccw_parent + * + * @dev: embedded device struct + * @parent: parent data structures for mdevs created + * @mdev_type(s): identifying information for mdevs created + */ +struct vfio_ccw_parent { + struct device dev; + + struct mdev_parent parent; + struct mdev_type mdev_type; + struct mdev_type *mdev_types[1]; +}; + +/** * struct vfio_ccw_private * @vdev: Embedded VFIO device - * @sch: pointer to the subchannel * @state: internal state of the device * @completion: synchronization helper of the I/O completion * @io_region: MMIO region to input/output I/O arguments/results @@ -88,12 +102,9 @@ struct vfio_ccw_crw { * @req_trigger: eventfd ctx for signaling userspace to return device * @io_work: work for deferral process of I/O handling * @crw_work: work for deferral process of CRW handling - * @release_comp: synchronization helper for vfio device release - * @parent: parent data structures for mdevs created */ struct vfio_ccw_private { struct vfio_device vdev; - struct subchannel *sch; int state; struct completion *completion; struct ccw_io_region *io_region; @@ -114,15 +125,11 @@ struct vfio_ccw_private { struct eventfd_ctx *req_trigger; struct work_struct io_work; struct work_struct crw_work; - - struct completion release_comp; - - struct mdev_parent parent; - struct mdev_type mdev_type; - struct mdev_type *mdev_types[1]; } __aligned(8); int vfio_ccw_sch_quiesce(struct subchannel *sch); +void vfio_ccw_sch_io_todo(struct work_struct *work); +void vfio_ccw_crw_todo(struct work_struct *work); extern struct mdev_driver vfio_ccw_mdev_driver; @@ -162,12 +169,18 @@ extern fsm_func_t *vfio_ccw_jumptable[NR_VFIO_CCW_STATES][NR_VFIO_CCW_EVENTS]; static inline void vfio_ccw_fsm_event(struct vfio_ccw_private *private, enum vfio_ccw_event event) { - trace_vfio_ccw_fsm_event(private->sch->schid, private->state, event); + struct subchannel *sch = to_subchannel(private->vdev.dev->parent); + + if (sch) + trace_vfio_ccw_fsm_event(sch->schid, private->state, event); vfio_ccw_jumptable[private->state][event](private, event); } extern struct workqueue_struct *vfio_ccw_work_q; - +extern struct kmem_cache *vfio_ccw_io_region; +extern struct kmem_cache *vfio_ccw_cmd_region; +extern struct kmem_cache *vfio_ccw_schib_region; +extern struct kmem_cache *vfio_ccw_crw_region; /* s390 debug feature, similar to base cio */ extern debug_info_t *vfio_ccw_debug_msg_id; |