BWN_HDRSIZE
int pktlen = roundup(m->m_pkthdr.len + BWN_HDRSIZE(mac), 4);
tq->tq_used += roundup(m->m_pkthdr.len + BWN_HDRSIZE(mac), 4);
(const uint8_t *)&txhdr, BWN_HDRSIZE(mac));
(const uint8_t *)&txhdr, BWN_HDRSIZE(mac));
&(txhdr_cache[(slot / BWN_TX_SLOTS_PER_FRAME) * BWN_HDRSIZE(mac)])
BWN_GET_TXHDRCACHE(slot), BWN_HDRSIZE(mac), bwn_dma_ring_addr,
dr->setdesc(dr, desc, mt->mt_paddr, BWN_HDRSIZE(mac), 1, 0, 0);
BWN_HDRSIZE(mac),
tq->tq_used -= roundup(tp->tp_m->m_pkthdr.len + BWN_HDRSIZE(mac), 4);