vhost: remove concurrent enqueue
All other DPDK PMDs doesn't support concurrent receiving or sending
packets to the same queue. The upper application should deal with
this, normally through queue and core bindings.
Due to historical reason, vhost internally supports concurrent lockless
enqueuing packets to the same virtio queue through costly cmpset operation.
This patch removes this internal lockless implementation and should improve
performance a bit.
Luckily DPDK OVS doesn't rely on this behavior.
Signed-off-by: Huawei Xie <huawei.xie@intel.com>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
git.droids-corp.org / dpdk.git / commit