diff options
| author | Jason Gunthorpe <jgg@nvidia.com> | 2021-04-06 16:40:34 -0300 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2021-04-07 15:39:18 -0600 |
| commit | 15fcc44be0c7afa2945b1896a96ac2ddf09f1fa7 (patch) | |
| tree | e8ecae765402f6e86b8095d43bbdf111cf2fea50 /include/linux/mdev.h | |
| parent | fbea43239074e16c91048f5ce70378664efbdb99 (diff) | |
vfio/mdev: Add mdev/mtype_get_type_group_id()
This returns the index in the supported_type_groups array that is
associated with the mdev_type attached to the struct mdev_device or its
containing struct kobject.
Each mdev_device can be spawned from exactly one mdev_type, which in turn
originates from exactly one supported_type_group.
Drivers are using weird string calculations to try and get back to this
index, providing a direct access to the index removes a bunch of wonky
driver code.
mdev_type->group can be deleted as the group is obtained using the
type_group_id.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Message-Id: <11-v2-d36939638fc6+d54-vfio2_jgg@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'include/linux/mdev.h')
| -rw-r--r-- | include/linux/mdev.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/mdev.h b/include/linux/mdev.h index fb582adda28a..41e919365223 100644 --- a/include/linux/mdev.h +++ b/include/linux/mdev.h @@ -46,6 +46,9 @@ static inline struct device *mdev_get_iommu_device(struct mdev_device *mdev) return mdev->iommu_device; } +unsigned int mdev_get_type_group_id(struct mdev_device *mdev); +unsigned int mtype_get_type_group_id(struct kobject *mtype_kobj); + /** * struct mdev_parent_ops - Structure to be registered for each parent device to * register the device to mdev module. |