This series intends to read the fields in virtio-net device configuration space conditionally on the feature bits, this means: MTU exists if VIRTIO_NET_F_MTU is set MAC exists if VIRTIO_NET_F_NET is set MQ exists if VIRTIO_NET_F_MQ or VIRTIO_NET_F_RSS is set. This series report device features to userspace and invokes vdpa_config_ops.get_config() than vdpa_get_config_unlocked() to read the device config spcae, so no raeces in vdpa_set_features_unlocked() Thanks! Zhu Lingshan (4): vDPA: allow userspace to query features of a vDPA device vDPA: only report driver features if FEATURES_OK is set vDPA: check VIRTIO_NET_F_RSS for max_virtqueue_paris's presence vDPA: Conditionally read MTU and MAC in dev cfg space drivers/vdpa/vdpa.c | 68 ++++++++++++++++++++++++++++++--------- include/uapi/linux/vdpa.h | 4 +++ 2 files changed, 56 insertions(+), 16 deletions(-) -- 2.31.1
