ixgbe_read_reg
u32 ixgbe_read_reg(struct ixgbe_hw *hw, u32 reg);
#define IXGBE_READ_REG(a, reg) ixgbe_read_reg((a), (reg))
ixgbe_read_reg((a), (reg) + ((offset) << 2))
#define IXGBE_WRITE_FLUSH(a) ixgbe_read_reg((a), IXGBE_STATUS)
before = ixgbe_read_reg(&adapter->hw, reg);
val = ixgbe_read_reg(&adapter->hw, reg);
before = ixgbe_read_reg(&adapter->hw, reg);
val = ixgbe_read_reg(&adapter->hw, reg);
before = ixgbe_read_reg(&adapter->hw, IXGBE_STATUS);
value = (ixgbe_read_reg(&adapter->hw, IXGBE_STATUS) & toggle);
after = ixgbe_read_reg(&adapter->hw, IXGBE_STATUS) & toggle;