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// SPDX-License-Identifier: GPL-2.0
/*******************************************************************************

  Intel(R) Gigabit Ethernet Linux driver
  Copyright(c) 2007-2013 Intel Corporation.

  Contact Information:
  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

*******************************************************************************/

#include "e1000_api.h"

/**
 *  e1000_init_mac_params - Initialize MAC function pointers
 *  @hw: pointer to the HW structure
 *
 *  This function initializes the function pointers for the MAC
 *  set of functions.  Called by drivers or by e1000_setup_init_funcs.
 **/
s32 e1000_init_mac_params(struct e1000_hw *hw)
{
	s32 ret_val = E1000_SUCCESS;

	if (hw->mac.ops.init_params) {
		ret_val = hw->mac.ops.init_params(hw);
		if (ret_val) {
			DEBUGOUT("MAC Initialization Error\n");
			goto out;
		}
	} else {
		DEBUGOUT("mac.init_mac_params was NULL\n");
		ret_val = -E1000_ERR_CONFIG;
	}

out:
	return ret_val;
}

/**
 *  e1000_init_nvm_params - Initialize NVM function pointers
 *  @hw: pointer to the HW structure
 *
 *  This function initializes the function pointers for the NVM
 *  set of functions.  Called by drivers or by e1000_setup_init_funcs.
 **/
s32 e1000_init_nvm_params(struct e1000_hw *hw)
{
	s32 ret_val = E1000_SUCCESS;

	if (hw->nvm.ops.init_params) {
		ret_val = hw->nvm.ops.init_params(hw);
		if (ret_val) {
			DEBUGOUT("NVM Initialization Error\n");
			goto out;
		}
	} else {
		DEBUGOUT("nvm.init_nvm_params was NULL\n");
		ret_val = -E1000_ERR_CONFIG;
	}

out:
	return ret_val;
}

/**
 *  e1000_init_phy_params - Initialize PHY function pointers
 *  @hw: pointer to the HW structure
 *
 *  This function initializes the function pointers for the PHY
 *  set of functions.  Called by drivers or by e1000_setup_init_funcs.
 **/
s32 e1000_init_phy_params(struct e1000_hw *hw)
{
	s32 ret_val = E1000_SUCCESS;

	if (hw->phy.ops.init_params) {
		ret_val = hw->phy.ops.init_params(hw);
		if (ret_val) {
			DEBUGOUT("PHY Initialization Error\n");
			goto out;
		}
	} else {
		DEBUGOUT("phy.init_phy_params was NULL\n");
		ret_val =  -E1000_ERR_CONFIG;
	}

out:
	return ret_val;
}

/**
 *  e1000_init_mbx_params - Initialize mailbox function pointers
 *  @hw: pointer to the HW structure
 *
 *  This function initializes the function pointers for the PHY
 *  set of functions.  Called by drivers or by e1000_setup_init_funcs.
 **/
s32 e1000_init_mbx_params(struct e1000_hw *hw)
{
	s32 ret_val = E1000_SUCCESS;

	if (hw->mbx.ops.init_params) {
		ret_val = hw->mbx.ops.init_params(hw);
		if (ret_val) {
			DEBUGOUT("Mailbox Initialization Error\n");
			goto out;
		}
	} else {
		DEBUGOUT("mbx.init_mbx_params was NULL\n");
		ret_val =  -E1000_ERR_CONFIG;
	}

out:
	return ret_val;
}

/**
 *  e1000_set_mac_type - Sets MAC type
 *  @hw: pointer to the HW structure
 *
 *  This function sets the mac type of the adapter based on the
 *  device ID stored in the hw structure.
 *  MUST BE FIRST FUNCTION CALLED (explicitly or through
 *  e1000_setup_init_funcs()).
 **/
s32 e1000_set_mac_type(struct e1000_hw *hw)
{
	struct e1000_mac_info *mac = &hw->mac;
	s32 ret_val = E1000_SUCCESS;

	DEBUGFUNC("e1000_set_mac_type");

	switch (hw->device_id) {
	case E1000_DEV_ID_82575EB_COPPER:
	case E1000_DEV_ID_82575EB_FIBER_SERDES:
	case E1000_DEV_ID_82575GB_QUAD_COPPER:
		mac->type = e1000_82575;
		break;
	case E1000_DEV_ID_82576:
	case E1000_DEV_ID_82576_FIBER:
	case E1000_DEV_ID_82576_SERDES:
	case E1000_DEV_ID_82576_QUAD_COPPER:
	case E1000_DEV_ID_82576_QUAD_COPPER_ET2:
	case E1000_DEV_ID_82576_NS:
	case E1000_DEV_ID_82576_NS_SERDES:
	case E1000_DEV_ID_82576_SERDES_QUAD:
		mac->type = e1000_82576;
		break;
	case E1000_DEV_ID_82580_COPPER:
	case E1000_DEV_ID_82580_FIBER:
	case E1000_DEV_ID_82580_SERDES:
	case E1000_DEV_ID_82580_SGMII:
	case E1000_DEV_ID_82580_COPPER_DUAL:
	case E1000_DEV_ID_82580_QUAD_FIBER:
	case E1000_DEV_ID_DH89XXCC_SGMII:
	case E1000_DEV_ID_DH89XXCC_SERDES:
	case E1000_DEV_ID_DH89XXCC_BACKPLANE:
	case E1000_DEV_ID_DH89XXCC_SFP:
		mac->type = e1000_82580;
		break;
	case E1000_DEV_ID_I350_COPPER:
	case E1000_DEV_ID_I350_FIBER:
	case E1000_DEV_ID_I350_SERDES:
	case E1000_DEV_ID_I350_SGMII:
	case E1000_DEV_ID_I350_DA4:
		mac->type = e1000_i350;
		break;
	case E1000_DEV_ID_I210_COPPER_FLASHLESS:
	case E1000_DEV_ID_I210_SERDES_FLASHLESS:
	case E1000_DEV_ID_I210_COPPER:
	case E1000_DEV_ID_I210_COPPER_OEM1:
	case E1000_DEV_ID_I210_COPPER_IT:
	case E1000_DEV_ID_I210_FIBER:
	case E1000_DEV_ID_I210_SERDES:
	case E1000_DEV_ID_I210_SGMII:
		mac->type = e1000_i210;
		break;
	case E1000_DEV_ID_I211_COPPER:
		mac->type = e1000_i211;
		break;

	case E1000_DEV_ID_I354_BACKPLANE_1GBPS:
	case E1000_DEV_ID_I354_SGMII:
	case E1000_DEV_ID_I354_BACKPLANE_2_5GBPS:
		mac->type = e1000_i354;
		break;
	default:
		/* Should never have loaded on this device */
		ret_val = -E1000_ERR_MAC_INIT;
		break;
	}

	return ret_val;
}

/**
 *  e1000_setup_init_funcs - Initializes function pointers
 *  @hw: pointer to the HW structure
 *  @init_device: true will initialize the rest of the function pointers
 *		  getting the device ready for use.  false will only set
 *		  MAC type and the function pointers for the other init
 *		  functions.  Passing false will not generate any hardware
 *		  reads or writes.
 *
 *  This function must be called by a driver in order to use the rest
 *  of the 'shared' code files. Called by drivers only.
 **/
s32 e1000_setup_init_funcs(struct e1000_hw *hw, bool init_device)
{
	s32 ret_val;

	/* Can't do much good without knowing the MAC type. */
	ret_val = e1000_set_mac_type(hw);
	if (ret_val) {
		DEBUGOUT("ERROR: MAC type could not be set properly.\n");
		goto out;
	}

	if (!hw->hw_addr) {
		DEBUGOUT("ERROR: Registers not mapped\n");
		ret_val = -E1000_ERR_CONFIG;
		goto out;
	}

	/*
	 * Init function pointers to generic implementations. We do this first
	 * allowing a driver module to override it afterward.
	 */
	e1000_init_mac_ops_generic(hw);
	e1000_init_phy_ops_generic(hw);
	e1000_init_nvm_ops_generic(hw);
	e1000_init_mbx_ops_generic(hw);

	/*
	 * Set up the init function pointers. These are functions within the
	 * adapter family file that sets up function pointers for the rest of
	 * the functions in that family.
	 */
	switch (hw->mac.type) {
	case e1000_82575:
	case e1000_82576:
	case e1000_82580:
	case e1000_i350:
	case e1000_i354:
		e1000_init_function_pointers_82575(hw);
		break;
	case e1000_i210:
	case e1000_i211:
		e1000_init_function_pointers_i210(hw);
		break;
	default:
		DEBUGOUT("Hardware not supported\n");
		ret_val = -E1000_ERR_CONFIG;
		break;
	}

	/*
	 * Initialize the rest of the function pointers. These require some
	 * register reads/writes in some cases.
	 */
	if (!(ret_val) && init_device) {
		ret_val = e1000_init_mac_params(hw);
		if (ret_val)
			goto out;

		ret_val = e1000_init_nvm_params(hw);
		if (ret_val)
			goto out;

		ret_val = e1000_init_phy_params(hw);
		if (ret_val)
			goto out;

		ret_val = e1000_init_mbx_params(hw);
		if (ret_val)
			goto out;
	}

out:
	return ret_val;
}

/**
 *  e1000_get_bus_info - Obtain bus information for adapter
 *  @hw: pointer to the HW structure
 *
 *  This will obtain information about the HW bus for which the
 *  adapter is attached and stores it in the hw structure. This is a
 *  function pointer entry point called by drivers.
 **/
s32 e1000_get_bus_info(struct e1000_hw *hw)
{
	if (hw->mac.ops.get_bus_info)
		return hw->mac.ops.get_bus_info(hw);

	return E1000_SUCCESS;
}

/**
 *  e1000_clear_vfta - Clear VLAN filter table
 *  @hw: pointer to the HW structure
 *
 *  This clears the VLAN filter table on the adapter. This is a function
 *  pointer entry point called by drivers.
 **/
void e1000_clear_vfta(struct e1000_hw *hw)
{
	if (hw->mac.ops.clear_vfta)
		hw->mac.ops.clear_vfta(hw);
}

/**
 *  e1000_write_vfta - Write value to VLAN filter table
 *  @hw: pointer to the HW structure
 *  @offset: the 32-bit offset in which to write the value to.
 *  @value: the 32-bit value to write at location offset.
 *
 *  This writes a 32-bit value to a 32-bit offset in the VLAN filter
 *  table. This is a function pointer entry point called by drivers.
 **/
void e1000_write_vfta(struct e1000_hw *hw, u32 offset, u32 value)
{
	if (hw->mac.ops.write_vfta)
		hw->mac.ops.write_vfta(hw, offset, value);
}

/**
 *  e1000_update_mc_addr_list - Update Multicast addresses
 *  @hw: pointer to the HW structure
 *  @mc_addr_list: array of multicast addresses to program
 *  @mc_addr_count: number of multicast addresses to program
 *
 *  Updates the Multicast Table Array.
 *  The caller must have a packed mc_addr_list of multicast addresses.
 **/
void e1000_update_mc_addr_list(struct e1000_hw *hw, u8 *mc_addr_list,
			       u32 mc_addr_count)
{
	if (hw->mac.ops.update_mc_addr_list)
		hw->mac.ops.update_mc_addr_list(hw, mc_addr_list,
						mc_addr_count);
}

/**
 *  e1000_force_mac_fc - Force MAC flow control
 *  @hw: pointer to the HW structure
 *
 *  Force the MAC's flow control settings. Currently no func pointer exists
 *  and all implementations are handled in the generic version of this
 *  function.
 **/
s32 e1000_force_mac_fc(struct e1000_hw *hw)
{
	return e1000_force_mac_fc_generic(hw);
}

/**
 *  e1000_check_for_link - Check/Store link connection
 *  @hw: pointer to the HW structure
 *
 *  This checks the link condition of the adapter and stores the
 *  results in the hw->mac structure. This is a function pointer entry
 *  point called by drivers.
 **/
s32 e1000_check_for_link(struct e1000_hw *hw)
{
	if (hw->mac.ops.check_for_link)
		return hw->mac.ops.check_for_link(hw);

	return -E1000_ERR_CONFIG;
}

/**
 *  e1000_check_mng_mode - Check management mode
 *  @hw: pointer to the HW structure
 *
 *  This checks if the adapter has manageability enabled.
 *  This is a function pointer entry point called by drivers.
 **/
bool e1000_check_mng_mode(struct e1000_hw *hw)
{
	if (hw->mac.ops.check_mng_mode)
		return hw->mac.ops.check_mng_mode(hw);

	return false;
}

/**
 *  e1000_mng_write_dhcp_info - Writes DHCP info to host interface
 *  @hw: pointer to the HW structure
 *  @buffer: pointer to the host interface
 *  @length: size of the buffer
 *
 *  Writes the DHCP information to the host interface.
 **/
s32 e1000_mng_write_dhcp_info(struct e1000_hw *hw, u8 *buffer, u16 length)
{
	return e1000_mng_write_dhcp_info_generic(hw, buffer, length);
}

/**
 *  e1000_reset_hw - Reset hardware
 *  @hw: pointer to the HW structure
 *
 *  This resets the hardware into a known state. This is a function pointer
 *  entry point called by drivers.
 **/
s32 e1000_reset_hw(struct e1000_hw *hw)
{
	if (hw->mac.ops.reset_hw)
		return hw->mac.ops.reset_hw(hw);

	return -E1000_ERR_CONFIG;
}

/**
 *  e1000_init_hw - Initialize hardware
 *  @hw: pointer to the HW structure
 *
 *  This inits the hardware readying it for operation. This is a function
 *  pointer entry point called by drivers.
 **/
s32 e1000_init_hw(struct e1000_hw *hw)
{
	if (hw->mac.ops.init_hw)
		return hw->mac.ops.init_hw(hw);

	return -E1000_ERR_CONFIG;
}

/**
 *  e1000_setup_link - Configures link and flow control
 *  @hw: pointer to the HW structure
 *
 *  This configures link and flow control settings for the adapter. This
 *  is a function pointer entry point called by drivers. While modules can
 *  also call this, they probably call their own version of this function.
 **/
s32 e1000_setup_link(struct e1000_hw *hw)
{
	if (hw->mac.ops.setup_link)
		return hw->mac.ops.setup_link(hw);

	return -E1000_ERR_CONFIG;
}

/**
 *  e1000_get_speed_and_duplex - Returns current speed and duplex
 *  @hw: pointer to the HW structure
 *  @speed: pointer to a 16-bit value to store the speed
 *  @duplex: pointer to a 16-bit value to store the duplex.
 *
 *  This returns the speed and duplex of the adapter in the two 'out'
 *  variables passed in. This is a function pointer entry point called
 *  by drivers.
 **/
s32 e1000_get_speed_and_duplex(struct e1000_hw *hw, u16 *speed, u16 *duplex)
{
	if (hw->mac.ops.get_link_up_info)
		return hw->mac.ops.get_link_up_info(hw, speed, duplex);

	return -E1000_ERR_CONFIG;
}

/**
 *  e1000_setup_led - Configures SW controllable LED
 *  @hw: pointer to the HW structure
 *
 *  This prepares the SW controllable LED for use and saves the current state
 *  of the LED so it can be later restored. This is a function pointer entry
 *  point called by drivers.
 **/
s32 e1000_setup_led(struct e1000_hw *hw)
{
	if (hw->mac.ops.setup_led)
		return hw->mac.ops.setup_led(hw);

	return E1000_SUCCESS;
}

/**
 *  e1000_cleanup_led - Restores SW controllable LED
 *  @hw: pointer to the HW structure
 *
 *  This restores the SW controllable LED to the value saved off by
 *  e1000_setup_led. This is a function pointer entry point called by drivers.
 **/
s32 e1000_cleanup_led(struct e1000_hw *hw)
{
	if (hw->mac.ops.cleanup_led)
		return hw->mac.ops.cleanup_led(hw);

	return E1000_SUCCESS;
}

/**
 *  e1000_blink_led - Blink SW controllable LED
 *  @hw: pointer to the HW structure
 *
 *  This starts the adapter LED blinking. Request the LED to be setup first
 *  and cleaned up after. This is a function pointer entry point called by
 *  drivers.
 **/
s32 e1000_blink_led(struct e1000_hw *hw)
{
	if (hw->mac.ops.blink_led)
		return hw->mac.ops.blink_led(hw);

	return E1000_SUCCESS;
}

/**
 *  e1000_id_led_init - store LED configurations in SW
 *  @hw: pointer to the HW structure
 *
 *  Initializes the LED config in SW. This is a function pointer entry point
 *  called by drivers.
 **/
s32 e1000_id_led_init(struct e1000_hw *hw)
{
	if (hw->mac.ops.id_led_init)
		return hw->mac.ops.id_led_init(hw);

	return E1000_SUCCESS;
}

/**
 *  e1000_led_on - Turn on SW controllable LED
 *  @hw: pointer to the HW structure
 *
 *  Turns the SW defined LED on. This is a function pointer entry point
 *  called by drivers.
 **/
s32 e1000_led_on(struct e1000_hw *hw)
{
	if (hw->mac.ops.led_on)
		return hw->mac.ops.led_on(hw);

	return E1000_SUCCESS;
}

/**
 *  e1000_led_off - Turn off SW controllable LED
 *  @hw: pointer to the HW structure
 *
 *  Turns the SW defined LED off. This is a function pointer entry point
 *  called by drivers.
 **/
s32 e1000_led_off(struct e1000_hw *hw)
{
	if (hw->mac.ops.led_off)
		return hw->mac.ops.led_off(hw);

	return E1000_SUCCESS;
}

/**
 *  e1000_reset_adaptive - Reset adaptive IFS
 *  @hw: pointer to the HW structure
 *
 *  Resets the adaptive IFS. Currently no func pointer exists and all
 *  implementations are handled in the generic version of this function.
 **/
void e1000_reset_adaptive(struct e1000_hw *hw)
{
	e1000_reset_adaptive_generic(hw);
}

/**
 *  e1000_update_adaptive - Update adaptive IFS
 *  @hw: pointer to the HW structure
 *
 *  Updates adapter IFS. Currently no func pointer exists and all
 *  implementations are handled in the generic version of this function.
 **/
void e1000_update_adaptive(struct e1000_hw *hw)
{
	e1000_update_adaptive_generic(hw);
}

/**
 *  e1000_disable_pcie_master - Disable PCI-Express master access
 *  @hw: pointer to the HW structure
 *
 *  Disables PCI-Express master access and verifies there are no pending
 *  requests. Currently no func pointer exists and all implementations are
 *  handled in the generic version of this function.
 **/
s32 e1000_disable_pcie_master(struct e1000_hw *hw)
{
	return e1000_disable_pcie_master_generic(hw);
}

/**
 *  e1000_config_collision_dist - Configure collision distance
 *  @hw: pointer to the HW structure
 *
 *  Configures the collision distance to the default value and is used
 *  during link setup.
 **/
void e1000_config_collision_dist(struct e1000_hw *hw)
{
	if (hw->mac.ops.config_collision_dist)
		hw->mac.ops.config_collision_dist(hw);
}

/**
 *  e1000_rar_set - Sets a receive address register
 *  @hw: pointer to the HW structure
 *  @addr: address to set the RAR to
 *  @index: the RAR to set
 *
 *  Sets a Receive Address Register (RAR) to the specified address.
 **/
void e1000_rar_set(struct e1000_hw *hw, u8 *addr, u32 index)
{
	if (hw->mac.ops.rar_set)
		hw->mac.ops.rar_set(hw, addr, index);
}

/**
 *  e1000_validate_mdi_setting - Ensures valid MDI/MDIX SW state
 *  @hw: pointer to the HW structure
 *
 *  Ensures that the MDI/MDIX SW state is valid.
 **/
s32 e1000_validate_mdi_setting(struct e1000_hw *hw)
{
	if (hw->mac.ops.validate_mdi_setting)
		return hw->mac.ops.validate_mdi_setting(hw);

	return E1000_SUCCESS;
}

/**
 *  e1000_hash_mc_addr - Determines address location in multicast table
 *  @hw: pointer to the HW structure
 *  @mc_addr: Multicast address to hash.
 *
 *  This hashes an address to determine its location in the multicast
 *  table. Currently no func pointer exists and all implementations
 *  are handled in the generic version of this function.
 **/
u32 e1000_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr)
{
	return e1000_hash_mc_addr_generic(hw, mc_addr);
}

/**
 *  e1000_enable_tx_pkt_filtering - Enable packet filtering on TX
 *  @hw: pointer to the HW structure
 *
 *  Enables packet filtering on transmit packets if manageability is enabled
 *  and host interface is enabled.
 *  Currently no func pointer exists and all implementations are handled in the
 *  generic version of this function.
 **/
bool e1000_enable_tx_pkt_filtering(struct e1000_hw *hw)
{
	return e1000_enable_tx_pkt_filtering_generic(hw);
}

/**
 *  e1000_mng_host_if_write - Writes to the manageability host interface
 *  @hw: pointer to the HW structure
 *  @buffer: pointer to the host interface buffer
 *  @length: size of the buffer
 *  @offset: location in the buffer to write to
 *  @sum: sum of the data (not checksum)
 *
 *  This function writes the buffer content at the offset given on the host if.
 *  It also does alignment considerations to do the writes in most efficient
 *  way.  Also fills up the sum of the buffer in *buffer parameter.
 **/
s32 e1000_mng_host_if_write(struct e1000_hw *hw, u8 *buffer, u16 length,
			    u16 offset, u8 *sum)
{
	return e1000_mng_host_if_write_generic(hw, buffer, length, offset, sum);
}

/**
 *  e1000_mng_write_cmd_header - Writes manageability command header
 *  @hw: pointer to the HW structure
 *  @hdr: pointer to the host interface command header
 *
 *  Writes the command header after does the checksum calculation.
 **/
s32 e1000_mng_write_cmd_header(struct e1000_hw *hw,
			       struct e1000_host_mng_command_header *hdr)
{
	return e1000_mng_write_cmd_header_generic(hw, hdr);
}

/**
 *  e1000_mng_enable_host_if - Checks host interface is enabled
 *  @hw: pointer to the HW structure
 *
 *  Returns E1000_success upon success, else E1000_ERR_HOST_INTERFACE_COMMAND
 *
 *  This function checks whether the HOST IF is enabled for command operation
 *  and also checks whether the previous command is completed.  It busy waits
 *  in case of previous command is not completed.
 **/
s32 e1000_mng_enable_host_if(struct e1000_hw *hw)
{
	return e1000_mng_enable_host_if_generic(hw);
}

/**
 *  e1000_check_reset_block - Verifies PHY can be reset
 *  @hw: pointer to the HW structure
 *
 *  Checks if the PHY is in a state that can be reset or if manageability
 *  has it tied up. This is a function pointer entry point called by drivers.
 **/
s32 e1000_check_reset_block(struct e1000_hw *hw)
{
	if (hw->phy.ops.check_reset_block)
		return hw->phy.ops.check_reset_block(hw);

	return E1000_SUCCESS;
}

/**
 *  e1000_read_phy_reg - Reads PHY register
 *  @hw: pointer to the HW structure
 *  @offset: the register to read
 *  @data: the buffer to store the 16-bit read.
 *
 *  Reads the PHY register and returns the value in data.
 *  This is a function pointer entry point called by drivers.
 **/
s32 e1000_read_phy_reg(struct e1000_hw *hw, u32 offset, u16 *data)
{
	if (hw->phy.ops.read_reg)
		return hw->phy.ops.read_reg(hw, offset, data);

	return E1000_SUCCESS;
}

/**
 *  e1000_write_phy_reg - Writes PHY register
 *  @hw: pointer to the HW structure
 *  @offset: the register to write
 *  @data: the value to write.
 *
 *  Writes the PHY register at offset with the value in data.
 *  This is a function pointer entry point called by drivers.
 **/
s32 e1000_write_phy_reg(struct e1000_hw *hw, u32 offset, u16 data)
{
	if (hw->phy.ops.write_reg)
		return hw->phy.ops.write_reg(hw, offset, data);

	return E1000_SUCCESS;
}

/**
 *  e1000_release_phy - Generic release PHY
 *  @hw: pointer to the HW structure
 *
 *  Return if silicon family does not require a semaphore when accessing the
 *  PHY.
 **/
void e1000_release_phy(struct e1000_hw *hw)
{
	if (hw->phy.ops.release)
		hw->phy.ops.release(hw);
}

/**
 *  e1000_acquire_phy - Generic acquire PHY
 *  @hw: pointer to the HW structure
 *
 *  Return success if silicon family does not require a semaphore when
 *  accessing the PHY.
 **/
s32 e1000_acquire_phy(struct e1000_hw *hw)
{
	if (hw->phy.ops.acquire)
		return hw->phy.ops.acquire(hw);

	return E1000_SUCCESS;
}

/**
 *  e1000_read_kmrn_reg - Reads register using Kumeran interface
 *  @hw: pointer to the HW structure
 *  @offset: the register to read
 *  @data: the location to store the 16-bit value read.
 *
 *  Reads a register out of the Kumeran interface. Currently no func pointer
 *  exists and all implementations are handled in the generic version of
 *  this function.
 **/
s32 e1000_read_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 *data)
{
	return e1000_read_kmrn_reg_generic(hw, offset, data);
}

/**
 *  e1000_write_kmrn_reg - Writes register using Kumeran interface
 *  @hw: pointer to the HW structure
 *  @offset: the register to write
 *  @data: the value to write.
 *
 *  Writes a register to the Kumeran interface. Currently no func pointer
 *  exists and all implementations are handled in the generic version of
 *  this function.
 **/
s32 e1000_write_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 data)
{
	return e1000_write_kmrn_reg_generic(hw, offset, data);
}

/**
 *  e1000_get_cable_length - Retrieves cable length estimation
 *  @hw: pointer to the HW structure
 *
 *  This function estimates the cable length and stores them in
 *  hw->phy.min_length and hw->phy.max_length. This is a function pointer
 *  entry point called by drivers.
 **/
s32 e1000_get_cable_length(struct e1000_hw *hw)
{
	if (hw->phy.ops.get_cable_length)
		return hw->phy.ops.get_cable_length(hw);

	return E1000_SUCCESS;
}

/**
 *  e1000_get_phy_info - Retrieves PHY information from registers
 *  @hw: pointer to the HW structure
 *
 *  This function gets some information from various PHY registers and
 *  populates hw->phy values with it. This is a function pointer entry
 *  point called by drivers.
 **/
s32 e1000_get_phy_info(struct e1000_hw *hw)
{
	if (hw->phy.ops.get_info)
		return hw->phy.ops.get_info(hw);

	return E1000_SUCCESS;
}

/**
 *  e1000_phy_hw_reset - Hard PHY reset
 *  @hw: pointer to the HW structure
 *
 *  Performs a hard PHY reset. This is a function pointer entry point called
 *  by drivers.
 **/
s32 e1000_phy_hw_reset(struct e1000_hw *hw)
{
	if (hw->phy.ops.reset)
		return hw->phy.ops.reset(hw);

	return E1000_SUCCESS;
}

/**
 *  e1000_phy_commit - Soft PHY reset
 *  @hw: pointer to the HW structure
 *
 *  Performs a soft PHY reset on those that apply. This is a function pointer
 *  entry point called by drivers.
 **/
s32 e1000_phy_commit(struct e1000_hw *hw)
{
	if (hw->phy.ops.commit)
		return hw->phy.ops.commit(hw);

	return E1000_SUCCESS;
}

/**
 *  e1000_set_d0_lplu_state - Sets low power link up state for D0
 *  @hw: pointer to the HW structure
 *  @active: boolean used to enable/disable lplu
 *
 *  Success returns 0, Failure returns 1
 *
 *  The low power link up (lplu) state is set to the power management level D0
 *  and SmartSpeed is disabled when active is true, else clear lplu for D0
 *  and enable Smartspeed.  LPLU and Smartspeed are mutually exclusive.  LPLU
 *  is used during Dx states where the power conservation is most important.
 *  During driver activity, SmartSpeed should be enabled so performance is
 *  maintained.  This is a function pointer entry point called by drivers.
 **/
s32 e1000_set_d0_lplu_state(struct e1000_hw *hw, bool active)
{
	if (hw->phy.ops.set_d0_lplu_state)
		return hw->phy.ops.set_d0_lplu_state(hw, active);

	return E1000_SUCCESS;
}

/**
 *  e1000_set_d3_lplu_state - Sets low power link up state for D3
 *  @hw: pointer to the HW structure
 *  @active: boolean used to enable/disable lplu
 *
 *  Success returns 0, Failure returns 1
 *
 *  The low power link up (lplu) state is set to the power management level D3
 *  and SmartSpeed is disabled when active is true, else clear lplu for D3
 *  and enable Smartspeed.  LPLU and Smartspeed are mutually exclusive.  LPLU
 *  is used during Dx states where the power conservation is most important.
 *  During driver activity, SmartSpeed should be enabled so performance is
 *  maintained.  This is a function pointer entry point called by drivers.
 **/
s32 e1000_set_d3_lplu_state(struct e1000_hw *hw, bool active)
{
	if (hw->phy.ops.set_d3_lplu_state)
		return hw->phy.ops.set_d3_lplu_state(hw, active);

	return E1000_SUCCESS;
}

/**
 *  e1000_read_mac_addr - Reads MAC address
 *  @hw: pointer to the HW structure
 *
 *  Reads the MAC address out of the adapter and stores it in the HW structure.
 *  Currently no func pointer exists and all implementations are handled in the
 *  generic version of this function.
 **/
s32 e1000_read_mac_addr(struct e1000_hw *hw)
{
	if (hw->mac.ops.read_mac_addr)
		return hw->mac.ops.read_mac_addr(hw);

	return e1000_read_mac_addr_generic(hw);
}

/**
 *  e1000_read_pba_string - Read device part number string
 *  @hw: pointer to the HW structure
 *  @pba_num: pointer to device part number
 *  @pba_num_size: size of part number buffer
 *
 *  Reads the product board assembly (PBA) number from the EEPROM and stores
 *  the value in pba_num.
 *  Currently no func pointer exists and all implementations are handled in the
 *  generic version of this function.
 **/
s32 e1000_read_pba_string(struct e1000_hw *hw, u8 *pba_num, u32 pba_num_size)
{
	return e1000_read_pba_string_generic(hw, pba_num, pba_num_size);
}

/**
 *  e1000_read_pba_length - Read device part number string length
 *  @hw: pointer to the HW structure
 *  @pba_num_size: size of part number buffer
 *
 *  Reads the product board assembly (PBA) number length from the EEPROM and
 *  stores the value in pba_num.
 *  Currently no func pointer exists and all implementations are handled in the
 *  generic version of this function.
 **/
s32 e1000_read_pba_length(struct e1000_hw *hw, u32 *pba_num_size)
{
	return e1000_read_pba_length_generic(hw, pba_num_size);
}

/**
 *  e1000_validate_nvm_checksum - Verifies NVM (EEPROM) checksum
 *  @hw: pointer to the HW structure
 *
 *  Validates the NVM checksum is correct. This is a function pointer entry
 *  point called by drivers.
 **/
s32 e1000_validate_nvm_checksum(struct e1000_hw *hw)
{
	if (hw->nvm.ops.validate)
		return hw->nvm.ops.validate(hw);

	return -E1000_ERR_CONFIG;
}

/**
 *  e1000_update_nvm_checksum - Updates NVM (EEPROM) checksum
 *  @hw: pointer to the HW structure
 *
 *  Updates the NVM checksum. Currently no func pointer exists and all
 *  implementations are handled in the generic version of this function.
 **/
s32 e1000_update_nvm_checksum(struct e1000_hw *hw)
{
	if (hw->nvm.ops.update)
		return hw->nvm.ops.update(hw);

	return -E1000_ERR_CONFIG;
}

/**
 *  e1000_reload_nvm - Reloads EEPROM
 *  @hw: pointer to the HW structure
 *
 *  Reloads the EEPROM by setting the "Reinitialize from EEPROM" bit in the
 *  extended control register.
 **/
void e1000_reload_nvm(struct e1000_hw *hw)
{
	if (hw->nvm.ops.reload)
		hw->nvm.ops.reload(hw);
}

/**
 *  e1000_read_nvm - Reads NVM (EEPROM)
 *  @hw: pointer to the HW structure
 *  @offset: the word offset to read
 *  @words: number of 16-bit words to read
 *  @data: pointer to the properly sized buffer for the data.
 *
 *  Reads 16-bit chunks of data from the NVM (EEPROM). This is a function
 *  pointer entry point called by drivers.
 **/
s32 e1000_read_nvm(struct e1000_hw *hw, u16 offset, u16 words, u16 *data)
{
	if (hw->nvm.ops.read)
		return hw->nvm.ops.read(hw, offset, words, data);

	return -E1000_ERR_CONFIG;
}

/**
 *  e1000_write_nvm - Writes to NVM (EEPROM)
 *  @hw: pointer to the HW structure
 *  @offset: the word offset to read
 *  @words: number of 16-bit words to write
 *  @data: pointer to the properly sized buffer for the data.
 *
 *  Writes 16-bit chunks of data to the NVM (EEPROM). This is a function
 *  pointer entry point called by drivers.
 **/
s32 e1000_write_nvm(struct e1000_hw *hw, u16 offset, u16 words, u16 *data)
{
	if (hw->nvm.ops.write)
		return hw->nvm.ops.write(hw, offset, words, data);

	return E1000_SUCCESS;
}

/**
 *  e1000_write_8bit_ctrl_reg - Writes 8bit Control register
 *  @hw: pointer to the HW structure
 *  @reg: 32bit register offset
 *  @offset: the register to write
 *  @data: the value to write.
 *
 *  Writes the PHY register at offset with the value in data.
 *  This is a function pointer entry point called by drivers.
 **/
s32 e1000_write_8bit_ctrl_reg(struct e1000_hw *hw, u32 reg, u32 offset,
			      u8 data)
{
	return e1000_write_8bit_ctrl_reg_generic(hw, reg, offset, data);
}

/**
 * e1000_power_up_phy - Restores link in case of PHY power down
 * @hw: pointer to the HW structure
 *
 * The phy may be powered down to save power, to turn off link when the
 * driver is unloaded, or wake on lan is not enabled (among others).
 **/
void e1000_power_up_phy(struct e1000_hw *hw)
{
	if (hw->phy.ops.power_up)
		hw->phy.ops.power_up(hw);

	e1000_setup_link(hw);
}

/**
 * e1000_power_down_phy - Power down PHY
 * @hw: pointer to the HW structure
 *
 * The phy may be powered down to save power, to turn off link when the
 * driver is unloaded, or wake on lan is not enabled (among others).
 **/
void e1000_power_down_phy(struct e1000_hw *hw)
{
	if (hw->phy.ops.power_down)
		hw->phy.ops.power_down(hw);
}

/**
 *  e1000_power_up_fiber_serdes_link - Power up serdes link
 *  @hw: pointer to the HW structure
 *
 *  Power on the optics and PCS.
 **/
void e1000_power_up_fiber_serdes_link(struct e1000_hw *hw)
{
	if (hw->mac.ops.power_up_serdes)
		hw->mac.ops.power_up_serdes(hw);
}

/**
 *  e1000_shutdown_fiber_serdes_link - Remove link during power down
 *  @hw: pointer to the HW structure
 *
 *  Shutdown the optics and PCS on driver unload.
 **/
void e1000_shutdown_fiber_serdes_link(struct e1000_hw *hw)
{
	if (hw->mac.ops.shutdown_serdes)
		hw->mac.ops.shutdown_serdes(hw);
}

/**
 *  e1000_get_thermal_sensor_data - Gathers thermal sensor data
 *  @hw: pointer to hardware structure
 *
 *  Updates the temperatures in mac.thermal_sensor_data
 **/
s32 e1000_get_thermal_sensor_data(struct e1000_hw *hw)
{
	if (hw->mac.ops.get_thermal_sensor_data)
		return hw->mac.ops.get_thermal_sensor_data(hw);

	return E1000_SUCCESS;
}

/**
 *  e1000_init_thermal_sensor_thresh - Sets thermal sensor thresholds
 *  @hw: pointer to hardware structure
 *
 *  Sets the thermal sensor thresholds according to the NVM map
 **/
s32 e1000_init_thermal_sensor_thresh(struct e1000_hw *hw)
{
	if (hw->mac.ops.init_thermal_sensor_thresh)
		return hw->mac.ops.init_thermal_sensor_thresh(hw);

	return E1000_SUCCESS;
}