| Message ID | 20220901101601.61420-5-lingshan.zhu@intel.com (mailing list archive) |
|---|---|
| State | RFC |
| Headers | show |
| Series | vDPA: support VHOST_GET/SET_VRING_ENDIAN | expand |
| Context | Check | Description |
|---|---|---|
| netdev/tree_selection | success | Not a local patch |
diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c index 8a08caf573d1..d361f951ff63 100644 --- a/drivers/vdpa/vdpa.c +++ b/drivers/vdpa/vdpa.c @@ -848,6 +848,9 @@ static int vdpa_dev_net_config_fill(struct vdpa_device *vdev, struct sk_buff *ms VDPA_ATTR_PAD)) return -EMSGSIZE; + if (nla_put_u8(msg, VDPA_ATTR_DEV_ENDIAN, le)) + return -EMSGSIZE; + return vdpa_dev_net_mq_config_fill(vdev, msg, features, &config); } diff --git a/include/uapi/linux/vdpa.h b/include/uapi/linux/vdpa.h index 25c55cab3d7c..bb9797781f97 100644 --- a/include/uapi/linux/vdpa.h +++ b/include/uapi/linux/vdpa.h @@ -51,6 +51,7 @@ enum vdpa_attr { VDPA_ATTR_DEV_QUEUE_INDEX, /* u32 */ VDPA_ATTR_DEV_VENDOR_ATTR_NAME, /* string */ VDPA_ATTR_DEV_VENDOR_ATTR_VALUE, /* u64 */ + VDPA_ATTR_DEV_ENDIAN, /* u8 */ /* new attributes must be added above here */ VDPA_ATTR_MAX,
This commit introduces a new netlink attr VDPA_ATTR_DEV_ENDIAN to report device endian-ness to usersapce. So the userspace tools can be aware of the endian-ness of the device, even uninitialized legacy/transitional devices. Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com> --- drivers/vdpa/vdpa.c | 3 +++ include/uapi/linux/vdpa.h | 1 + 2 files changed, 4 insertions(+)