be_txd
bb->be_txd[i].tx_flags = bb->be_txd[i].tx_addr = 0;
sbus_writel(bblk_dvma + bib_offset(be_txd, 0),
struct be_txd *txbase = &bp->bmac_block->be_txd[0];
struct be_txd *this = &txbase[elem];
bp->bmac_block->be_txd[entry].tx_flags = TXD_UPDATE;
bp->bmac_block->be_txd[entry].tx_addr = mapping;
bp->bmac_block->be_txd[entry].tx_flags =
struct be_txd be_txd[TX_RING_MAXSIZE];