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vfio/mdev: consolidate all the device_api sysfs into the core code

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Every driver just emits a static string, simply feed it through the ops
and provide a standard sysfs show function.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Link: https://lore.kernel.org/r/20220923092652.100656-11-hch@lst.de
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Jason Gunthorpe 2022-09-23 11:26:48 +02:00 • committed by Alex Williamson
parent c7c1f38f6c
commit 290aac5df8
10 changed files with 37 additions and 67 deletions
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7
include/linux/mdev.h
View file

@ -61,11 +61,6 @@ struct mdev_type_attribute {
size_t count);
};
#define MDEV_TYPE_ATTR(_name, _mode, _show, _store) \
struct mdev_type_attribute mdev_type_attr_##_name = \
__ATTR(_name, _mode, _show, _store)
#define MDEV_TYPE_ATTR_RW(_name) \
struct mdev_type_attribute mdev_type_attr_##_name = __ATTR_RW(_name)
#define MDEV_TYPE_ATTR_RO(_name) \
struct mdev_type_attribute mdev_type_attr_##_name = __ATTR_RO(_name)
#define MDEV_TYPE_ATTR_WO(_name) \
@ -73,12 +68,14 @@ struct mdev_type_attribute mdev_type_attr_##_name = \
/**
* struct mdev_driver - Mediated device driver
* @device_api: string to return for the device_api sysfs
* @probe: called when new device created
* @remove: called when device removed
* @types_attrs: attributes to the type kobjects.
* @driver: device driver structure
**/
struct mdev_driver {
const char *device_api;
int (*probe)(struct mdev_device *dev);
void (*remove)(struct mdev_device *dev);
const struct attribute * const *types_attrs;