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It's more valuable to abstract the link read/write interface. As such, change the following method names, and add them to a new link info structure: read_i2c_combined => read_link read_i2c_combined_unlocked => read_link_unlocked write_i2c_combined => write_link write_i2c_combined_unlocked => write_link_unlocked This will allow X550EM_a to override these methods for MDIO access while X550EM_x provides methods to use I2C combined access. Initially the structure is just method pointers and a bus address. Two functions involved in combined I2C accesses were moved from ixgbe_phy.c to ixgbe_x550.c. The underlying functions that carry out the combined I2C accesses were left in ixgbe_phy.c because they share some functions with other I2C methods. Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
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