ixgbe_adv_tx_context_desc
struct ixgbe_adv_tx_context_desc *TXD;
TXD = (struct ixgbe_adv_tx_context_desc *) &txr->tx_base[first];
static int ixgbe_tx_ctx_setup(struct ixgbe_adv_tx_context_desc *,
ixgbe_tx_ctx_setup(struct ixgbe_adv_tx_context_desc *TXD, if_pkt_info_t pi)