diff options
| author |   Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com> | 2017-03-17 04:17:33 +0100 |
|---|---|---|
| committer |   Cornelia Huck <cornelia.huck@de.ibm.com> | 2017-03-31 12:55:06 +0200 |
| commit | 84cd8fc48478b5e67b3f1600717299e11430a67e (patch) | |
| tree | a6654495414878b703656bb97c0557746d4b00ed /drivers/s390/cio/vfio_ccw_private.h | |
| parent | vfio: ccw: introduce channel program interfaces (diff) | |
| download | linux-dev-84cd8fc48478b5e67b3f1600717299e11430a67e.tar.xz linux-dev-84cd8fc48478b5e67b3f1600717299e11430a67e.zip | |
vfio: ccw: register vfio_ccw to the mediated device framework
To make vfio support subchannel devices, we need to leverage the
mediated device framework to create a mediated device for the
subchannel device.
This registers the subchannel device to the mediated device
framework during probe to enable mediated device creation.
Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Message-Id: <20170317031743.40128-7-bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/vfio_ccw_private.h')
| -rw-r--r-- | drivers/s390/cio/vfio_ccw_private.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/s390/cio/vfio_ccw_private.h b/drivers/s390/cio/vfio_ccw_private.h index 38d69a59cb12..5afb3ba5c7b5 100644 --- a/drivers/s390/cio/vfio_ccw_private.h +++ b/drivers/s390/cio/vfio_ccw_private.h @@ -16,10 +16,21 @@ * struct vfio_ccw_private * @sch: pointer to the subchannel * @completion: synchronization helper of the I/O completion + * @avail: available for creating a mediated device + * @mdev: pointer to the mediated device + * @nb: notifier for vfio events */ struct vfio_ccw_private { struct subchannel *sch; struct completion *completion; + atomic_t avail; + struct mdev_device *mdev; + struct notifier_block nb; } __aligned(8); +extern int vfio_ccw_mdev_reg(struct subchannel *sch); +extern void vfio_ccw_mdev_unreg(struct subchannel *sch); + +extern int vfio_ccw_sch_quiesce(struct subchannel *sch); + #endif |