FreeBSD/Linux Kernel Cross Reference
sys/dev/em/e1000_api.c

     /*******************************************************************************
     
       Copyright (c) 2001-2007, Intel Corporation 
       All rights reserved.
       
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       modification, are permitted provided that the following conditions are met:
       
        1. Redistributions of source code must retain the above copyright notice, 
          this list of conditions and the following disclaimer.
      
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       3. Neither the name of the Intel Corporation nor the names of its 
          contributors may be used to endorse or promote products derived from 
          this software without specific prior written permission.
      
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      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
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    *******************************************************************************/
    /* $FreeBSD$ */
    
    #include "e1000_api.h"
    #include "e1000_mac.h"
    #include "e1000_nvm.h"
    #include "e1000_phy.h"
    
    #ifndef NO_82542_SUPPORT
    extern void    e1000_init_function_pointers_82542(struct e1000_hw *hw);
    #endif
    extern void    e1000_init_function_pointers_82543(struct e1000_hw *hw);
    extern void    e1000_init_function_pointers_82540(struct e1000_hw *hw);
    extern void    e1000_init_function_pointers_82571(struct e1000_hw *hw);
    extern void    e1000_init_function_pointers_82541(struct e1000_hw *hw);
    extern void    e1000_init_function_pointers_80003es2lan(struct e1000_hw *hw);
    extern void    e1000_init_function_pointers_ich8lan(struct e1000_hw *hw);
    extern void    e1000_init_function_pointers_82575(struct e1000_hw *hw);
    
    /**
     *  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->func.init_mac_params) {
                    ret_val = hw->func.init_mac_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->func.init_nvm_params) {
                    ret_val = hw->func.init_nvm_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->func.init_phy_params) {
                   ret_val = hw->func.init_phy_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_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) {
   #ifndef NO_82542_SUPPORT
           case E1000_DEV_ID_82542:
                   mac->type = e1000_82542;
                   break;
   #endif
           case E1000_DEV_ID_82543GC_FIBER:
           case E1000_DEV_ID_82543GC_COPPER:
                   mac->type = e1000_82543;
                   break;
           case E1000_DEV_ID_82544EI_COPPER:
           case E1000_DEV_ID_82544EI_FIBER:
           case E1000_DEV_ID_82544GC_COPPER:
           case E1000_DEV_ID_82544GC_LOM:
                   mac->type = e1000_82544;
                   break;
           case E1000_DEV_ID_82540EM:
           case E1000_DEV_ID_82540EM_LOM:
           case E1000_DEV_ID_82540EP:
           case E1000_DEV_ID_82540EP_LOM:
           case E1000_DEV_ID_82540EP_LP:
                   mac->type = e1000_82540;
                   break;
           case E1000_DEV_ID_82545EM_COPPER:
           case E1000_DEV_ID_82545EM_FIBER:
                   mac->type = e1000_82545;
                   break;
           case E1000_DEV_ID_82545GM_COPPER:
           case E1000_DEV_ID_82545GM_FIBER:
           case E1000_DEV_ID_82545GM_SERDES:
                   mac->type = e1000_82545_rev_3;
                   break;
           case E1000_DEV_ID_82546EB_COPPER:
           case E1000_DEV_ID_82546EB_FIBER:
           case E1000_DEV_ID_82546EB_QUAD_COPPER:
                   mac->type = e1000_82546;
                   break;
           case E1000_DEV_ID_82546GB_COPPER:
           case E1000_DEV_ID_82546GB_FIBER:
           case E1000_DEV_ID_82546GB_SERDES:
           case E1000_DEV_ID_82546GB_PCIE:
           case E1000_DEV_ID_82546GB_QUAD_COPPER:
           case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
                   mac->type = e1000_82546_rev_3;
                   break;
           case E1000_DEV_ID_82541EI:
           case E1000_DEV_ID_82541EI_MOBILE:
           case E1000_DEV_ID_82541ER_LOM:
                   mac->type = e1000_82541;
                   break;
           case E1000_DEV_ID_82541ER:
           case E1000_DEV_ID_82541GI:
           case E1000_DEV_ID_82541GI_LF:
           case E1000_DEV_ID_82541GI_MOBILE:
                   mac->type = e1000_82541_rev_2;
                   break;
           case E1000_DEV_ID_82547EI:
           case E1000_DEV_ID_82547EI_MOBILE:
                   mac->type = e1000_82547;
                   break;
           case E1000_DEV_ID_82547GI:
                   mac->type = e1000_82547_rev_2;
                   break;
           case E1000_DEV_ID_82571EB_COPPER:
           case E1000_DEV_ID_82571EB_FIBER:
           case E1000_DEV_ID_82571EB_SERDES:
           case E1000_DEV_ID_82571EB_SERDES_DUAL:
           case E1000_DEV_ID_82571EB_SERDES_QUAD:
           case E1000_DEV_ID_82571EB_QUAD_COPPER:
           case E1000_DEV_ID_82571PT_QUAD_COPPER:
           case E1000_DEV_ID_82571EB_QUAD_FIBER:
           case E1000_DEV_ID_82571EB_QUAD_COPPER_LP:
                   mac->type = e1000_82571;
                   break;
           case E1000_DEV_ID_82572EI:
           case E1000_DEV_ID_82572EI_COPPER:
           case E1000_DEV_ID_82572EI_FIBER:
           case E1000_DEV_ID_82572EI_SERDES:
                   mac->type = e1000_82572;
                   break;
           case E1000_DEV_ID_82573E:
           case E1000_DEV_ID_82573E_IAMT:
           case E1000_DEV_ID_82573L:
                   mac->type = e1000_82573;
                   break;
           case E1000_DEV_ID_80003ES2LAN_COPPER_DPT:
           case E1000_DEV_ID_80003ES2LAN_SERDES_DPT:
           case E1000_DEV_ID_80003ES2LAN_COPPER_SPT:
           case E1000_DEV_ID_80003ES2LAN_SERDES_SPT:
                   mac->type = e1000_80003es2lan;
                   break;
           case E1000_DEV_ID_ICH8_IFE:
           case E1000_DEV_ID_ICH8_IFE_GT:
           case E1000_DEV_ID_ICH8_IFE_G:
           case E1000_DEV_ID_ICH8_IGP_M:
           case E1000_DEV_ID_ICH8_IGP_M_AMT:
           case E1000_DEV_ID_ICH8_IGP_AMT:
           case E1000_DEV_ID_ICH8_IGP_C:
                   mac->type = e1000_ich8lan;
                   break;
           case E1000_DEV_ID_ICH9_IFE:
           case E1000_DEV_ID_ICH9_IFE_GT:
           case E1000_DEV_ID_ICH9_IFE_G:
           case E1000_DEV_ID_ICH9_IGP_AMT:
           case E1000_DEV_ID_ICH9_IGP_C:
                   mac->type = e1000_ich9lan;
                   break;
           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;
           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 some generic function pointers that are currently all pointing
            * to generic implementations. We do this first allowing a driver
            * module to override it afterwards.
            */
           hw->func.config_collision_dist = e1000_config_collision_dist_generic;
           hw->func.rar_set = e1000_rar_set_generic;
           hw->func.validate_mdi_setting = e1000_validate_mdi_setting_generic;
           hw->func.mng_host_if_write = e1000_mng_host_if_write_generic;
           hw->func.mng_write_cmd_header = e1000_mng_write_cmd_header_generic;
           hw->func.mng_enable_host_if = e1000_mng_enable_host_if_generic;
           hw->func.wait_autoneg = e1000_wait_autoneg_generic;
           hw->func.reload_nvm = e1000_reload_nvm_generic;
   
           /*
            * 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) {
   #ifndef NO_82542_SUPPORT
           case e1000_82542:
                   e1000_init_function_pointers_82542(hw);
                   break;
   #endif
           case e1000_82543:
           case e1000_82544:
                   e1000_init_function_pointers_82543(hw);
                   break;
           case e1000_82540:
           case e1000_82545:
           case e1000_82545_rev_3:
           case e1000_82546:
           case e1000_82546_rev_3:
                   e1000_init_function_pointers_82540(hw);
                   break;
           case e1000_82541:
           case e1000_82541_rev_2:
           case e1000_82547:
           case e1000_82547_rev_2:
                   e1000_init_function_pointers_82541(hw);
                   break;
           case e1000_82571:
           case e1000_82572:
           case e1000_82573:
                   e1000_init_function_pointers_82571(hw);
                   break;
           case e1000_80003es2lan:
                   e1000_init_function_pointers_80003es2lan(hw);
                   break;
           case e1000_ich8lan:
           case e1000_ich9lan:
                   e1000_init_function_pointers_ich8lan(hw);
                   break;
           case e1000_82575:
                   e1000_init_function_pointers_82575(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;
   
           }
   
   out:
           return ret_val;
   }
   
   /**
    *  e1000_remove_device - Free device specific structure
    *  @hw: pointer to the HW structure
    *
    *  If a device specific structure was allocated, this function will
    *  free it. This is a function pointer entry point called by drivers.
    **/
   void e1000_remove_device(struct e1000_hw *hw)
   {
           if (hw->func.remove_device)
                   hw->func.remove_device(hw);
   }
   
   /**
    *  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
    *  adaper 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->func.get_bus_info)
                   return hw->func.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->func.clear_vfta)
                   hw->func.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->func.write_vfta)
                   hw->func.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
    *  @rar_used_count: the first RAR register free to program
    *  @rar_count: total number of supported Receive Address Registers
    *
    *  Updates the Receive Address Registers and Multicast Table Array.
    *  The caller must have a packed mc_addr_list of multicast addresses.
    *  The parameter rar_count will usually be hw->mac.rar_entry_count
    *  unless there are workarounds that change this.  Currently no func pointer
    *  exists and all implementations are handled in the generic version of this
    *  function.
    **/
   void e1000_update_mc_addr_list(struct e1000_hw *hw, u8 *mc_addr_list,
                                  u32 mc_addr_count, u32 rar_used_count,
                                  u32 rar_count)
   {
           if (hw->func.update_mc_addr_list)
                   hw->func.update_mc_addr_list(hw,
                                                mc_addr_list,
                                                mc_addr_count,
                                                rar_used_count,
                                                rar_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->func.check_for_link)
                   return hw->func.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->func.check_mng_mode)
                   return hw->func.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->func.reset_hw)
                   return hw->func.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->func.init_hw)
                   return hw->func.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->func.setup_link)
                   return hw->func.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->func.get_link_up_info)
                   return hw->func.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->func.setup_led)
                   return hw->func.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->func.cleanup_led)
                   return hw->func.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->func.blink_led)
                   return hw->func.blink_led(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->func.led_on)
                   return hw->func.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->func.led_off)
                   return hw->func.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->func.config_collision_dist)
                   hw->func.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->func.rar_set)
                   hw->func.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->func.validate_mdi_setting)
                   return hw->func.validate_mdi_setting(hw);
   
           return E1000_SUCCESS;
   }
   
   /**
    *  e1000_mta_set - Sets multicast table bit
    *  @hw: pointer to the HW structure
    *  @hash_value: Multicast hash value.
    *
    *  This sets the bit in the multicast table corresponding to the
    *  hash value.  This is a function pointer entry point called by drivers.
    **/
   void e1000_mta_set(struct e1000_hw *hw, u32 hash_value)
   {
           if (hw->func.mta_set)
                   hw->func.mta_set(hw, hash_value);
   }
   
   /**
    *  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)
   {
           if (hw->func.mng_host_if_write)
                   return hw->func.mng_host_if_write(hw, buffer, length, offset,
                                                     sum);
   
           return E1000_NOT_IMPLEMENTED;
   }
   
   /**
    *  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)
   {
           if (hw->func.mng_write_cmd_header)
                   return hw->func.mng_write_cmd_header(hw, hdr);
   
           return E1000_NOT_IMPLEMENTED;
   }
   
   /**
    *  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 operaton
    *  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)
   {
           if (hw->func.mng_enable_host_if)
                   return hw->func.mng_enable_host_if(hw);
   
           return E1000_NOT_IMPLEMENTED;
   }
   
   /**
    *  e1000_wait_autoneg - Waits for autonegotiation completion
    *  @hw: pointer to the HW structure
    *
    *  Waits for autoneg to complete. Currently no func pointer exists and all
    *  implementations are handled in the generic version of this function.
    **/
   s32 e1000_wait_autoneg(struct e1000_hw *hw)
   {
           if (hw->func.wait_autoneg)
                   return hw->func.wait_autoneg(hw);
   
           return E1000_SUCCESS;
   }
   
   /**
    *  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->func.check_reset_block)
                   return hw->func.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->func.read_phy_reg)
                   return hw->func.read_phy_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->func.write_phy_reg)
                   return hw->func.write_phy_reg(hw, offset, data);
   
           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->func.get_cable_length)
                   return hw->func.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->func.get_phy_info)
                   return hw->func.get_phy_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->func.reset_phy)
                   return hw->func.reset_phy(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->func.commit_phy)
                   return hw->func.commit_phy(hw);
   
           return E1000_SUCCESS;
   }
   
   /**
    *  e1000_set_d3_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->func.set_d0_lplu_state)
                  return hw->func.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->func.set_d3_lplu_state)
                  return hw->func.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->func.read_mac_addr)
                  return hw->func.read_mac_addr(hw);
  
          return e1000_read_mac_addr_generic(hw);
  }
  
  /**
   *  e1000_read_part_num - Read device part number
   *  @hw: pointer to the HW structure
   *  @part_num: pointer to device part number
   *
   *  Reads the product board assembly (PBA) number from the EEPROM and stores
   *  the value in part_num.
   *  Currently no func pointer exists and all implementations are handled in the
   *  generic version of this function.
   **/
  s32 e1000_read_part_num(struct e1000_hw *hw, u32 *part_num)
  {
          return e1000_read_part_num_generic(hw, part_num);
  }
  
  /**
   *  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->func.validate_nvm)
                  return hw->func.validate_nvm(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->func.update_nvm)
                  return hw->func.update_nvm(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->func.reload_nvm)
                  hw->func.reload_nvm(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->func.read_nvm)
                  return hw->func.read_nvm(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->func.write_nvm)
                  return hw->func.write_nvm(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);
  }

Cache object: 796f6c7de82cad8683d9d803c85bd468