QETH_TXQ_STAT_ADD
#define QETH_TXQ_STAT_INC(_q, _stat) QETH_TXQ_STAT_ADD(_q, _stat, 1)
QETH_TXQ_STAT_ADD(queue, buf_elements, buf->next_element_to_fill);
QETH_TXQ_STAT_ADD(queue, tx_errors, buf->frames);
QETH_TXQ_STAT_ADD(queue, tx_packets, buf->frames);
QETH_TXQ_STAT_ADD(queue, tx_bytes, buf->bytes);
QETH_TXQ_STAT_ADD(queue, skbs_csum, packets);
QETH_TXQ_STAT_ADD(queue, tso_bytes, bytes);
QETH_TXQ_STAT_ADD(queue, bufs_pack, flush_cnt);
QETH_TXQ_STAT_ADD(queue, bufs_pack, flush_count);