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Date:   Fri, 13 May 2022 16:39:29 +0800
From:   Zhu Lingshan <>
        Zhu Lingshan <>
Subject: [RFC 0/6] ifcvf/vDPA: support query device config space through

This series allows userspace to query device config space through
netlink, to get multi-queue, feature bits, device features and
driver features.

This series also has fixed some issues of misusing
VDPA_ATTR_DEV_SUPPORTED_FEATURES, this should be used for virtio devices
than the management device.

Please help review.

Zhu Lingshan

Zhu Lingshan (6):
  vDPA/ifcvf: get_config_size should return a value no greater than dev
  vDPA/ifcvf: support userspace to query features and MQ of a management
  vDPA/ifcvf: support userspace to query device feature bits
  vDPA: !FEATURES_OK should not block querying device config space
  vDPA: answer num of queue pairs = 1 to userspace when VIRTIO_NET_F_MQ
    == 0
  vDPA: fix 'cast to restricted le16' warnings in

 drivers/vdpa/ifcvf/ifcvf_base.c | 20 ++++++++++++++++++--
 drivers/vdpa/ifcvf/ifcvf_base.h |  3 +++
 drivers/vdpa/ifcvf/ifcvf_main.c |  3 +++
 drivers/vdpa/vdpa.c             | 32 +++++++++++++++-----------------
 include/uapi/linux/vdpa.h       |  1 +
 5 files changed, 40 insertions(+), 19 deletions(-)


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