[dpdk-dev] [PATCH v2 0/2] net/virtio: support GUEST ANNOUNCE

[Xiao Wang]

When live migration is finished, the backup VM needs to proactively announce
its new location. DPDK vhost has implemented VHOST_USER_PROTOCOL_F_RARP to
generate a RARP packet to switch in dequeue path. Another method is to let
the guest proactively send out RARP packet using VIRTIO_NET_F_GUEST_ANNOUNCE
feature.

This patch set enables this feature in virtio pmd, to support VM running virtio
pmd be migrated without vhost supporting RARP generation.

v2:
- Use spaces instead of tabs between the code and comments.
- Remove unnecessary parentheses.
- Use rte_pktmbuf_mtod directly to get eth_hdr addr.
- Fix virtio_dev_pause return value check.

Xiao Wang (2):
  net/virtio: make control queue thread-safe
  net/virtio: support GUEST ANNOUNCE

 drivers/net/virtio/virtio_ethdev.c | 138 ++++++++++++++++++++++++++++++++++++-
 drivers/net/virtio/virtio_ethdev.h |   4 ++
 drivers/net/virtio/virtio_pci.h    |   1 +
 drivers/net/virtio/virtio_rxtx.c   |  82 ++++++++++++++++++++++
 drivers/net/virtio/virtio_rxtx.h   |   1 +
 drivers/net/virtio/virtqueue.h     |  11 +++
 6 files changed, 234 insertions(+), 3 deletions(-)

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1.8.3.1