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Date:	Thu, 29 Mar 2007 09:39:56 -0700
From:	Auke Kok <auke-jan.h.kok@...el.com>
To:	jeff@...zik.org
Cc:	auke-jan.h.kok@...el.com, bruce.w.allan@...el.com,
	jeffrey.t.kirsher@...el.com, jesse.brandeburg@...el.com,
	cramerj@...el.com, john.ronciak@...el.com,
	arjan.van.de.ven@...el.com, akpm@...ux-foundation.org,
	netdev@...r.kernel.org
Subject: [PATCH 01/19] e1000: introduce new driver internal hardware API

From: Jeb Cramer <cramerj@...el.com>

This introduces the new internal API for hardware-specific code. The
code is split up per chipset and allows future chipset support to be
added without touching the run-time codepatch of old hardware, greatly
reducing the risk of introducing regressions, and making debugging far
easier due to greater codepath separation.

The API code sets up function pointers for the main hardware specific
routines for each family and initializes the MAC type at load time. From
there on the driver initializes each subcomponent (PHY, NVM, etc.) through
it's function pointer call.

Signed-off-by: Jeb Cramer <cramerj@...el.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@...el.com>
---

 drivers/net/e1000/e1000_api.c | 1174 +++++++++++++++++++++++++++++++++++++++++
 drivers/net/e1000/e1000_api.h |  160 ++++++
 2 files changed, 1334 insertions(+), 0 deletions(-)

diff --git a/drivers/net/e1000/e1000_api.c b/drivers/net/e1000/e1000_api.c
new file mode 100644
index 0000000..ea4dd64
--- /dev/null
+++ b/drivers/net/e1000/e1000_api.c
@@ -0,0 +1,1174 @@
+/*******************************************************************************
+
+  Intel PRO/1000 Linux driver
+  Copyright(c) 1999 - 2007 Intel Corporation.
+
+  This program is free software; you can redistribute it and/or modify it
+  under the terms and conditions of the GNU General Public License,
+  version 2, as published by the Free Software Foundation.
+
+  This program is distributed in the hope it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Contact Information:
+  Linux NICS <linux.nics@...el.com>
+  e1000-devel Mailing List <e1000-devel@...ts.sourceforge.net>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#include "e1000_mac.h"
+#include "e1000_nvm.h"
+#include "e1000_phy.h"
+
+static s32     e1000_set_mac_type(struct e1000_hw *hw);
+
+#ifndef NO_82542_SUPPORT
+extern void    e1000_init_function_pointers_82542(struct e1000_hw *hw);
+#endif
+#ifndef NO_82543_SUPPORT
+extern void    e1000_init_function_pointers_82543(struct e1000_hw *hw);
+#endif
+#ifndef NO_82540_SUPPORT
+extern void    e1000_init_function_pointers_82540(struct e1000_hw *hw);
+#endif
+#ifndef NO_82571_SUPPORT
+extern void    e1000_init_function_pointers_82571(struct e1000_hw *hw);
+#endif
+#ifndef NO_82541_SUPPORT
+extern void    e1000_init_function_pointers_82541(struct e1000_hw *hw);
+#endif
+#ifndef NO_80003ES2LAN_SUPPORT
+extern void    e1000_init_function_pointers_80003es2lan(struct e1000_hw *hw);
+#endif
+#ifndef NO_ICH8LAN_SUPPORT
+extern void    e1000_init_function_pointers_ich8lan(struct e1000_hw *hw);
+#endif
+
+/**
+ *  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 != NULL) {
+		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 != NULL) {
+		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 != NULL) {
+		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()).
+ **/
+static 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
+#ifndef NO_82543_SUPPORT
+	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;
+#endif
+#ifndef NO_82540_SUPPORT
+	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;
+#endif
+#ifndef NO_82541_SUPPORT
+	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;
+#endif
+#ifndef NO_82571_SUPPORT
+	case E1000_DEV_ID_82571EB_COPPER:
+	case E1000_DEV_ID_82571EB_FIBER:
+	case E1000_DEV_ID_82571EB_SERDES:
+	case E1000_DEV_ID_82571EB_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;
+#endif /* NO_82571_SUPPORT */
+#ifndef NO_80003ES2LAN_SUPPORT
+	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;
+#endif
+#ifndef NO_ICH8LAN_SUPPORT
+	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;
+#endif
+	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, boolean_t 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;
+	}
+
+	/* 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
+#ifndef NO_82543_SUPPORT
+	case e1000_82543:
+	case e1000_82544:
+		e1000_init_function_pointers_82543(hw);
+		break;
+#endif
+#ifndef NO_82540_SUPPORT
+	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;
+#endif
+#ifndef NO_82541_SUPPORT
+	case e1000_82541:
+	case e1000_82541_rev_2:
+	case e1000_82547:
+	case e1000_82547_rev_2:
+		e1000_init_function_pointers_82541(hw);
+		break;
+#endif
+#ifndef NO_82571_SUPPORT
+	case e1000_82571:
+	case e1000_82572:
+	case e1000_82573:
+		e1000_init_function_pointers_82571(hw);
+		break;
+#endif
+#ifndef NO_80003ES2LAN_SUPPORT
+	case e1000_80003es2lan:
+		e1000_init_function_pointers_80003es2lan(hw);
+		break;
+#endif
+#ifndef NO_ICH8LAN_SUPPORT
+	case e1000_ich8lan:
+		e1000_init_function_pointers_ich8lan(hw);
+		break;
+#endif
+	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 == E1000_SUCCESS) && (init_device == TRUE)) {
+		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 != NULL)
+		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 != NULL)
+		return hw->func.get_bus_info(hw);
+	else
+		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 != NULL)
+		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 != NULL)
+		hw->func.write_vfta(hw, offset, value);
+}
+
+/**
+ *  e1000_mc_addr_list_update - 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_mc_addr_list_update(struct e1000_hw *hw,
+                          u8 *mc_addr_list,
+                          u32 mc_addr_count,
+                          u32 rar_used_count,
+                          u32 rar_count)
+{
+	if (hw->func.mc_addr_list_update != NULL)
+		hw->func.mc_addr_list_update(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 != NULL)
+		return hw->func.check_for_link(hw);
+	else
+		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.
+ **/
+boolean_t
+e1000_check_mng_mode(struct e1000_hw *hw)
+{
+	if (hw->func.check_mng_mode != NULL)
+		return hw->func.check_mng_mode(hw);
+	else
+		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 != NULL)
+		return hw->func.reset_hw(hw);
+	else
+		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 != NULL)
+		return hw->func.init_hw(hw);
+	else
+		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 != NULL)
+		return hw->func.setup_link(hw);
+	else
+		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 != NULL)
+		return hw->func.get_link_up_info(hw, speed, duplex);
+	else
+		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 != NULL)
+		return hw->func.setup_led(hw);
+	else
+		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 != NULL)
+		return hw->func.cleanup_led(hw);
+	else
+		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 != NULL)
+		return hw->func.blink_led(hw);
+	else
+		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 != NULL)
+		return hw->func.led_on(hw);
+	else
+		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 != NULL)
+		return hw->func.led_off(hw);
+	else
+		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. Currently no func pointer exists and all
+ *  implementations are handled in the generic version of this function.
+ **/
+void
+e1000_config_collision_dist(struct e1000_hw *hw)
+{
+	e1000_config_collision_dist_generic(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.
+ *  Currently no func pointer exists and all implementations are
+ *  handled in the generic version of this function.
+ **/
+void
+e1000_rar_set(struct e1000_hw *hw, u8 *addr, u32 index)
+{
+	e1000_rar_set_generic(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. Currently no func pointer
+ *  exists and all implementations are handled in the generic version of
+ *  this function.
+ **/
+s32
+e1000_validate_mdi_setting(struct e1000_hw *hw)
+{
+	return e1000_validate_mdi_setting_generic(hw);
+}
+
+/**
+ *  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 != NULL)
+		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.
+ **/
+boolean_t
+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.
+ *  Currently no func pointer exists and all implementations are handled in the
+ *  generic version of this function.
+ **/
+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.
+ *  Currently no func pointer exists and all implementations are handled in the
+ *  generic version of this function.
+ **/
+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 operaton
+ *  and also checks whether the previous command is completed.  It busy waits
+ *  in case of previous command is not completed.
+ *  Currently no func pointer exists and all implementations are handled in the
+ *  generic version of this function.
+ **/
+s32
+e1000_mng_enable_host_if(struct e1000_hw * hw)
+{
+	return e1000_mng_enable_host_if_generic(hw);
+}
+
+/**
+ *  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)
+{
+	return e1000_wait_autoneg_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->func.check_reset_block != NULL)
+		return hw->func.check_reset_block(hw);
+	else
+		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 != NULL)
+		return hw->func.read_phy_reg(hw, offset, data);
+	else
+		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 != NULL)
+		return hw->func.write_phy_reg(hw, offset, data);
+	else
+		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 != NULL)
+		return hw->func.get_cable_length(hw);
+	else
+		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 != NULL)
+		return hw->func.get_phy_info(hw);
+	else
+		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 != NULL)
+		return hw->func.reset_phy(hw);
+	else
+		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 != NULL)
+		return hw->func.commit_phy(hw);
+	else
+		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, boolean_t active)
+{
+	if (hw->func.set_d0_lplu_state != NULL)
+		return hw->func.set_d0_lplu_state(hw, active);
+	else
+		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, boolean_t active)
+{
+	if (hw->func.set_d3_lplu_state != NULL)
+		return hw->func.set_d3_lplu_state(hw, active);
+	else
+		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)
+{
+	return e1000_read_mac_addr_generic(hw);
+}
+
+/**
+ *  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 != NULL)
+		return hw->func.validate_nvm(hw);
+	else
+		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 != NULL)
+		return hw->func.update_nvm(hw);
+	else
+		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.
+ *  Currently no func pointer exists and all implementations are handled in the
+ *  generic version of this function.
+ **/
+void
+e1000_reload_nvm(struct e1000_hw *hw)
+{
+	e1000_reload_nvm_generic(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 != NULL)
+		return hw->func.read_nvm(hw, offset, words, data);
+	else
+		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 != NULL)
+		return hw->func.write_nvm(hw, offset, words, data);
+	else
+		return E1000_SUCCESS;
+}
diff --git a/drivers/net/e1000/e1000_api.h b/drivers/net/e1000/e1000_api.h
new file mode 100644
index 0000000..fdf4bb3
--- /dev/null
+++ b/drivers/net/e1000/e1000_api.h
@@ -0,0 +1,160 @@
+/*******************************************************************************
+
+  Intel PRO/1000 Linux driver
+  Copyright(c) 1999 - 2007 Intel Corporation.
+
+  This program is free software; you can redistribute it and/or modify it
+  under the terms and conditions of the GNU General Public License,
+  version 2, as published by the Free Software Foundation.
+
+  This program is distributed in the hope it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Contact Information:
+  Linux NICS <linux.nics@...el.com>
+  e1000-devel Mailing List <e1000-devel@...ts.sourceforge.net>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#ifndef _E1000_API_H_
+#define _E1000_API_H_
+
+#include "e1000_hw.h"
+
+s32       e1000_setup_init_funcs(struct e1000_hw *hw, boolean_t init_device);
+s32       e1000_init_mac_params(struct e1000_hw *hw);
+s32       e1000_init_nvm_params(struct e1000_hw *hw);
+s32       e1000_init_phy_params(struct e1000_hw *hw);
+void      e1000_remove_device(struct e1000_hw *hw);
+s32       e1000_get_bus_info(struct e1000_hw *hw);
+void      e1000_clear_vfta(struct e1000_hw *hw);
+void      e1000_write_vfta(struct e1000_hw *hw, u32 offset, u32 value);
+s32       e1000_force_mac_fc(struct e1000_hw *hw);
+s32       e1000_check_for_link(struct e1000_hw *hw);
+s32       e1000_reset_hw(struct e1000_hw *hw);
+s32       e1000_init_hw(struct e1000_hw *hw);
+s32       e1000_setup_link(struct e1000_hw *hw);
+s32       e1000_get_speed_and_duplex(struct e1000_hw *hw, u16 *speed,
+                                     u16 *duplex);
+s32       e1000_disable_pcie_master(struct e1000_hw *hw);
+void      e1000_config_collision_dist(struct e1000_hw *hw);
+void      e1000_rar_set(struct e1000_hw *hw, u8 *addr, u32 index);
+void      e1000_mta_set(struct e1000_hw *hw, u32 hash_value);
+u32       e1000_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr);
+void      e1000_mc_addr_list_update(struct e1000_hw *hw,
+                                    u8 *mc_addr_list, u32 mc_addr_count,
+                                    u32 rar_used_count, u32 rar_count);
+s32       e1000_setup_led(struct e1000_hw *hw);
+s32       e1000_cleanup_led(struct e1000_hw *hw);
+s32       e1000_check_reset_block(struct e1000_hw *hw);
+s32       e1000_blink_led(struct e1000_hw *hw);
+s32       e1000_led_on(struct e1000_hw *hw);
+s32       e1000_led_off(struct e1000_hw *hw);
+void      e1000_reset_adaptive(struct e1000_hw *hw);
+void      e1000_update_adaptive(struct e1000_hw *hw);
+s32       e1000_get_cable_length(struct e1000_hw *hw);
+s32       e1000_validate_mdi_setting(struct e1000_hw *hw);
+s32       e1000_read_phy_reg(struct e1000_hw *hw, u32 offset, u16 *data);
+s32       e1000_write_phy_reg(struct e1000_hw *hw, u32 offset, u16 data);
+s32       e1000_get_phy_info(struct e1000_hw *hw);
+s32       e1000_phy_hw_reset(struct e1000_hw *hw);
+s32       e1000_phy_commit(struct e1000_hw *hw);
+s32       e1000_read_mac_addr(struct e1000_hw *hw);
+s32       e1000_read_part_num(struct e1000_hw *hw, u32 *part_num);
+void      e1000_reload_nvm(struct e1000_hw *hw);
+s32       e1000_update_nvm_checksum(struct e1000_hw *hw);
+s32       e1000_validate_nvm_checksum(struct e1000_hw *hw);
+s32       e1000_read_nvm(struct e1000_hw *hw, u16 offset, u16 words, u16 *data);
+s32       e1000_read_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 *data);
+s32       e1000_write_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 data);
+s32       e1000_write_nvm(struct e1000_hw *hw, u16 offset, u16 words,
+                          u16 *data);
+s32       e1000_wait_autoneg(struct e1000_hw *hw);
+s32       e1000_set_d3_lplu_state(struct e1000_hw *hw, boolean_t active);
+s32       e1000_set_d0_lplu_state(struct e1000_hw *hw, boolean_t active);
+boolean_t e1000_check_mng_mode(struct e1000_hw *hw);
+boolean_t e1000_enable_mng_pass_thru(struct e1000_hw *hw);
+boolean_t e1000_enable_tx_pkt_filtering(struct e1000_hw *hw);
+s32       e1000_mng_enable_host_if(struct e1000_hw *hw);
+s32       e1000_mng_host_if_write(struct e1000_hw *hw,
+                                  u8 *buffer, u16 length, u16 offset, u8 *sum);
+s32       e1000_mng_write_cmd_header(struct e1000_hw *hw,
+                                     struct e1000_host_mng_command_header *hdr);
+s32       e1000_mng_write_dhcp_info(struct e1000_hw * hw,
+                                    u8 *buffer, u16 length);
+#ifndef NO_82543_SUPPORT
+void      e1000_tbi_adjust_stats_82543(struct e1000_hw *hw,
+                                       struct e1000_hw_stats *stats,
+                                       u32 frame_len, u8 *mac_addr);
+void      e1000_set_tbi_compatibility_82543(struct e1000_hw *hw,
+                                            boolean_t state);
+boolean_t e1000_tbi_sbp_enabled_82543(struct e1000_hw *hw);
+#endif
+#ifndef NO_82542_SUPPORT
+u32       e1000_translate_register_82542(u32 reg);
+#endif
+#ifndef NO_82541_SUPPORT
+void      e1000_init_script_state_82541(struct e1000_hw *hw, boolean_t state);
+#endif
+#ifndef NO_82571_SUPPORT
+boolean_t e1000_get_laa_state_82571(struct e1000_hw *hw);
+void      e1000_set_laa_state_82571(struct e1000_hw *hw, boolean_t state);
+#endif
+#ifndef NO_ICH8LAN_SUPPORT
+void      e1000_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw,
+                                                      boolean_t state);
+void      e1000_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw);
+void      e1000_gig_downshift_workaround_ich8lan(struct e1000_hw *hw);
+#endif
+
+/* TBI_ACCEPT macro definition:
+ *
+ * This macro requires:
+ *      adapter = a pointer to struct e1000_hw
+ *      status = the 8 bit status field of the RX descriptor with EOP set
+ *      error = the 8 bit error field of the RX descriptor with EOP set
+ *      length = the sum of all the length fields of the RX descriptors that
+ *               make up the current frame
+ *      last_byte = the last byte of the frame DMAed by the hardware
+ *      max_frame_length = the maximum frame length we want to accept.
+ *      min_frame_length = the minimum frame length we want to accept.
+ *
+ * This macro is a conditional that should be used in the interrupt
+ * handler's Rx processing routine when RxErrors have been detected.
+ *
+ * Typical use:
+ *  ...
+ *  if (TBI_ACCEPT) {
+ *      accept_frame = TRUE;
+ *      e1000_tbi_adjust_stats(adapter, MacAddress);
+ *      frame_length--;
+ *  } else {
+ *      accept_frame = FALSE;
+ *  }
+ *  ...
+ */
+
+/* The carrier extension symbol, as received by the NIC. */
+#define CARRIER_EXTENSION   0x0F
+
+#define TBI_ACCEPT(a, status, errors, length, last_byte) \
+    (e1000_tbi_sbp_enabled_82543(a) && \
+     (((errors) & E1000_RXD_ERR_FRAME_ERR_MASK) == E1000_RXD_ERR_CE) && \
+     ((last_byte) == CARRIER_EXTENSION) && \
+     (((status) & E1000_RXD_STAT_VP) ? \
+          (((length) > ((a)->mac.min_frame_size - VLAN_TAG_SIZE)) && \
+           ((length) <= ((a)->mac.max_frame_size + 1))) : \
+          (((length) > (a)->mac.min_frame_size) && \
+           ((length) <= ((a)->mac.max_frame_size + VLAN_TAG_SIZE + 1)))))
+
+#endif
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