c121c8d6d3
Bulk free of mbufs when clean used ring. Shift operation of idx could be saved if vq_free_cnt means free slots rather than free descriptors. TODO: rearrange vq data structure, pack the stats var together so that we could use one vec instruction to update all of them. Signed-off-by: Huawei Xie <huawei.xie@intel.com> Acked-by: Jianfeng Tan <jianfeng.tan@intel.com>