Implementation of rte_vhost_enqueue_burst() based on lockless ring-buffer
algorithm and contains almost all to be thread-safe, but it's not.
This set adds required changes.
First patch in set is a standalone patch that fixes many times discussed
issue with barriers on different architectures.
Second and third adds fixes to make rte_vhost_enqueue_burst thread safe.
version 3:
* Rebased on top of current master.
version 2:
* Documentation patch dropped. Other patches of series still
may be merged to fix existing issues and keep code in
consistent state for the future.
* buf_vec field of struct vhost_virtqueue marked as deprecated.
Ilya Maximets (3):
vhost: use SMP barriers instead of compiler ones.
vhost: make buf vector for scatter RX local.
vhost: avoid reordering of used->idx and last_used_idx updating.
doc/guides/rel_notes/deprecation.rst | 1 +
lib/librte_vhost/rte_virtio_net.h | 2 +-
lib/librte_vhost/vhost_rxtx.c | 71 ++++++++++++++++++++----------------
3 files changed, 42 insertions(+), 32 deletions(-)
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2.5.0
