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vdpa: Enable a user to add and delete a vdpa device

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Add the ability to add and delete a vdpa device.

Examples:
Create a vdpa device of type network named "foo2" from
the management device vdpasim:

$ vdpa dev add mgmtdev vdpasim_net name foo2

Delete the vdpa device after its use:
$ vdpa dev del foo2

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20210105103203.82508-5-parav@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Parav Pandit
2021-01-05 12:32:01 +02:00
committed by Michael S. Tsirkin
parent 33b347503f
commit 903f7bcaed
3 changed files with 143 additions and 10 deletions
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4
include/uapi/linux/vdpa.h
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@@ -14,6 +14,8 @@ enum vdpa_command {
VDPA_CMD_UNSPEC,
VDPA_CMD_MGMTDEV_NEW,
VDPA_CMD_MGMTDEV_GET, /* can dump */
VDPA_CMD_DEV_NEW,
VDPA_CMD_DEV_DEL,
};
enum vdpa_attr {
@@ -24,6 +26,8 @@ enum vdpa_attr {
VDPA_ATTR_MGMTDEV_DEV_NAME, /* string */
VDPA_ATTR_MGMTDEV_SUPPORTED_CLASSES, /* u64 */
VDPA_ATTR_DEV_NAME, /* string */
/* new attributes must be added above here */
VDPA_ATTR_MAX,
};