get_next_index
producer = get_next_index(producer, tx_ring->num_desc);
index = get_next_index(index, sds_ring->num_desc);
consumer = get_next_index(consumer, sds_ring->num_desc);
sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
producer = get_next_index(producer, rds_ring->num_desc);
producer = get_next_index(producer, rds_ring->num_desc);
producer = get_next_index(producer, tx_ring->num_desc);
producer = get_next_index(producer, tx_ring->num_desc);
producer = get_next_index(producer, num_txd);
tx_ring->producer = get_next_index(producer, num_txd);
producer = get_next_index(producer, tx_ring->num_desc);
index = get_next_index(index, sds_ring->num_desc);
consumer = get_next_index(consumer, sds_ring->num_desc);
producer = get_next_index(producer, rds_ring->num_desc);
consumer = get_next_index(consumer, sds_ring->num_desc);
consumer = get_next_index(consumer, sds_ring->num_desc);
consumer = get_next_index(consumer, sds_ring->num_desc);
tx_ring->producer = get_next_index(producer, tx_ring->num_desc);
producer = get_next_index(producer, tx_ring->num_desc);
producer = get_next_index(producer, tx_ring->num_desc);
producer = get_next_index(producer, tx_ring->num_desc);
producer = get_next_index(producer, num_txd);
tx_ring->producer = get_next_index(producer, num_txd);
producer = get_next_index(producer, rds_ring->num_desc);
sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);