txdesc
static struct txdesc txd[NTXD] __attribute__ ((aligned(4)));
i40e_tx_desc_t *txdesc;
txdesc = &itrq->itrq_desc_ring[itrq->itrq_desc_tail];
txdesc->buffer_addr = CPU_TO_LE64((uintptr_t)buff);
txdesc->cmd_type_offset_bsz =
txbf->txdesc = txds;
txbf->txdesc->td_next = baddr_desc;
txbf->txdesc->td_next = taddr_desc;
txbf->next_bf_daddr = txbf->txdesc->td_next;
ds = bf->txdesc;
ds = bf->txdesc;
struct rtw_txdesc *txdesc; /* virtual addr of desc */