diff options
| author | Eli Cohen <elic@nvidia.com> | 2022-01-05 14:46:42 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-01-15 02:50:54 +0300 |
| commit | cd2629f6df1cab5b3df34705ae7f3bde6147fce3 (patch) | |
| tree | a2a0e3d2426f9ab090d8a30d31e0087296080c22 /include/uapi/linux/vdpa.h | |
| parent | 37e07e705888e4c3502f204e9c6785c9c2d6d86a (diff) | |
| download | linux-cd2629f6df1cab5b3df34705ae7f3bde6147fce3.tar.xz | |
vdpa: Support reporting max device capabilities
Add max_supported_vqs and supported_features fields to struct
vdpa_mgmt_dev. Upstream drivers need to feel these values according to
the device capabilities.
These values are reported back in a netlink message when showing management
devices.
Examples:
$ auxiliary/mlx5_core.sf.1:
supported_classes net
max_supported_vqs 257
dev_features CSUM GUEST_CSUM MTU HOST_TSO4 HOST_TSO6 STATUS CTRL_VQ MQ \
CTRL_MAC_ADDR VERSION_1 ACCESS_PLATFORM
$ vdpa -j mgmtdev show
{"mgmtdev":{"auxiliary/mlx5_core.sf.1":{"supported_classes":["net"], \
"max_supported_vqs":257,"dev_features":["CSUM","GUEST_CSUM","MTU", \
"HOST_TSO4","HOST_TSO6","STATUS","CTRL_VQ","MQ","CTRL_MAC_ADDR", \
"VERSION_1","ACCESS_PLATFORM"]}}}
$ vdpa -jp mgmtdev show
{
"mgmtdev": {
"auxiliary/mlx5_core.sf.1": {
"supported_classes": [ "net" ],
"max_supported_vqs": 257,
"dev_features": ["CSUM","GUEST_CSUM","MTU","HOST_TSO4", \
"HOST_TSO6","STATUS","CTRL_VQ","MQ", \
"CTRL_MAC_ADDR","VERSION_1","ACCESS_PLATFORM"]
}
}
}
Signed-off-by: Eli Cohen <elic@nvidia.com>
Link: https://lore.kernel.org/r/20220105114646.577224-11-elic@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Si-Wei Liu<si-wei.liu@oracle.com>
Diffstat (limited to 'include/uapi/linux/vdpa.h')
| -rw-r--r-- | include/uapi/linux/vdpa.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/vdpa.h b/include/uapi/linux/vdpa.h index db3738ef3beb..1061d8d2d09d 100644 --- a/include/uapi/linux/vdpa.h +++ b/include/uapi/linux/vdpa.h @@ -44,6 +44,8 @@ enum vdpa_attr { VDPA_ATTR_DEV_NET_CFG_MTU, /* u16 */ VDPA_ATTR_DEV_NEGOTIATED_FEATURES, /* u64 */ + VDPA_ATTR_DEV_MGMTDEV_MAX_VQS, /* u32 */ + VDPA_ATTR_DEV_SUPPORTED_FEATURES, /* u64 */ /* new attributes must be added above here */ VDPA_ATTR_MAX, }; |