Merge tag 'net-pull-request' of https://github.com/jasowang/qemu into staging

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* tag 'net-pull-request' of https://github.com/jasowang/qemu: (21 commits)
  net: tulip: Restrict DMA engine to memories
  net/colo.c: Fix the pointer issue reported by Coverity.
  vdpa: Delete CVQ migration blocker
  vdpa: Add virtio-net mac address via CVQ at start
  vhost_net: add NetClientState->load() callback
  vdpa: extract vhost_vdpa_net_cvq_add from vhost_vdpa_net_handle_ctrl_avail
  vdpa: Move command buffers map to start of net device
  vdpa: add net_vhost_vdpa_cvq_info NetClientInfo
  vhost_net: Add NetClientInfo stop callback
  vhost_net: Add NetClientInfo start callback
  vhost: Do not depend on !NULL VirtQueueElement on vhost_svq_flush
  vhost: Delete useless read memory barrier
  vhost: use SVQ element ndescs instead of opaque data for desc validation
  vhost: stop transfer elem ownership in vhost_handle_guest_kick
  vdpa: Use ring hwaddr at vhost_vdpa_svq_unmap_ring
  vhost: Always store new kick fd on vhost_svq_set_svq_kick_fd
  vdpa: Make SVQ vring unmapping return void
  vdpa: Remove SVQ vring from iova_tree at shutdown
  util: accept iova_tree_remove_parameter by value
  vdpa: do not save failed dma maps in SVQ iova tree
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>