IXGBE_VFTDBAL
regs_buff[29 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAL(i));
{ IXGBE_VFTDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
IXGBE_WRITE_REG(hw, IXGBE_VFTDBAL(reg_idx), tdba & DMA_BIT_MASK(32));