diff options
Diffstat (limited to 'drivers/s390/cio/vfio_ccw_private.h')
| -rw-r--r-- | drivers/s390/cio/vfio_ccw_private.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/s390/cio/vfio_ccw_private.h b/drivers/s390/cio/vfio_ccw_private.h index 0501d4bbcdbd..3bd0171d38d0 100644 --- a/drivers/s390/cio/vfio_ccw_private.h +++ b/drivers/s390/cio/vfio_ccw_private.h @@ -88,7 +88,8 @@ struct vfio_ccw_parent { * @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 - * @io_mutex: protect against concurrent update of I/O regions + * @io_mutex: protect against concurrent update of I/O resources + * and @cp lifecycle * @region: additional regions for other subchannel operations * @cmd_region: MMIO region for asynchronous I/O commands other than START * @schib_region: MMIO region for SCHIB information @@ -97,11 +98,14 @@ struct vfio_ccw_parent { * @cp: channel program for the current I/O operation * @irb: irb info received from interrupt * @scsw: scsw info + * @crw_lock: serialization of CRW list information + * @crw: list of Channel Report Word elements * @io_trigger: eventfd ctx for signaling userspace I/O results * @crw_trigger: eventfd ctx for signaling userspace CRW information * @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 + * @notoper_work: work for deferred processing in not-operational state */ struct vfio_ccw_private { struct vfio_device vdev; @@ -118,6 +122,8 @@ struct vfio_ccw_private { struct channel_program cp; struct irb irb; union scsw scsw; + + spinlock_t crw_lock; struct list_head crw; struct eventfd_ctx *io_trigger; @@ -125,11 +131,13 @@ struct vfio_ccw_private { struct eventfd_ctx *req_trigger; struct work_struct io_work; struct work_struct crw_work; + struct work_struct notoper_work; } __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); +void vfio_ccw_notoper_todo(struct work_struct *work); extern struct mdev_driver vfio_ccw_mdev_driver; |