vec_foreach_index (i, mif->tx_queues)
memif_msg_enq_add_ring (mif, i, MEMIF_RING_S2M);
vec_foreach_index (i, mif->rx_queues)
memif_msg_enq_add_ring (mif, i, MEMIF_RING_M2S);
vec_foreach_index (i, mif->tx_queues)
memif_msg_enq_add_ring (mif, i, MEMIF_RING_S2M);
vec_foreach_index (i, mif->rx_queues)
memif_msg_enq_add_ring (mif, i, MEMIF_RING_M2S);