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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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9
samples/vfio-mdev/mbochs.c
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@@ -1384,17 +1384,9 @@ static ssize_t available_instances_show(struct mdev_type *mtype,
}
static MDEV_TYPE_ATTR_RO(available_instances);
static ssize_t device_api_show(struct mdev_type *mtype,
struct mdev_type_attribute *attr, char *buf)
{
return sprintf(buf, "%s\n", VFIO_DEVICE_API_PCI_STRING);
}
static MDEV_TYPE_ATTR_RO(device_api);
static const struct attribute *mdev_types_attrs[] = {
&mdev_type_attr_name.attr,
&mdev_type_attr_description.attr,
&mdev_type_attr_device_api.attr,
&mdev_type_attr_available_instances.attr,
NULL,
};
@@ -1410,6 +1402,7 @@ static const struct vfio_device_ops mbochs_dev_ops = {
};
static struct mdev_driver mbochs_driver = {
.device_api = VFIO_DEVICE_API_PCI_STRING,
.driver = {
.name = "mbochs",
.owner = THIS_MODULE,