[dpdk-dev] [PATCH v3 0/2] net/virtio: support GUEST ANNOUNCE
Xiao Wang
xiao.w.wang at intel.com
Thu Jan 4 08:41:38 CET 2018
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.
v3:
- Remove Tx function code duplication, use a special pointer for rarp
injection.
- Rename function generate_rarp to virtio_notify_peers, replace
'virtnet_' with 'virtio_'.
- Add comment for state_lock.
- Typo fix and comment improvement.
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 | 145 +++++++++++++++++++++++++++++++-
drivers/net/virtio/virtio_ethdev.h | 1 +
drivers/net/virtio/virtio_pci.h | 7 ++
drivers/net/virtio/virtio_rxtx.c | 3 +-
drivers/net/virtio/virtio_rxtx.h | 1 +
drivers/net/virtio/virtio_rxtx_simple.c | 2 +-
drivers/net/virtio/virtqueue.h | 11 +++
7 files changed, 165 insertions(+), 5 deletions(-)
--
1.8.3.1
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