ixgb: Remove ixgb driver

There are likely no users of this driver as the hardware has been
discontinued since 2010. Remove the driver and all references to it
in documentation.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/PCI/pci-error-recovery.rst

@@ -418,7 +418,6 @@ That is, the recovery API only requires that:
    - drivers/next/e100.c
    - drivers/net/e1000
    - drivers/net/e1000e
-   - drivers/net/ixgb
    - drivers/net/ixgbe
    - drivers/net/cxgb3
    - drivers/net/s2io.c

Documentation/networking/device_drivers/ethernet/index.rst

@@ -31,7 +31,6 @@ Contents:
    intel/fm10k
    intel/igb
    intel/igbvf
-   intel/ixgb
    intel/ixgbe
    intel/ixgbevf
    intel/i40e

Documentation/networking/device_drivers/ethernet/intel/ixgb.rst

-.. SPDX-License-Identifier: GPL-2.0+
-
-=====================================================================
-Linux Base Driver for 10 Gigabit Intel(R) Ethernet Network Connection
-=====================================================================
-
-October 1, 2018
-
-
-Contents
-========
-
-- In This Release
-- Identifying Your Adapter
-- Command Line Parameters
-- Improving Performance
-- Additional Configurations
-- Known Issues/Troubleshooting
-- Support
-
-
-
-In This Release
-===============
-
-This file describes the ixgb Linux Base Driver for the 10 Gigabit Intel(R)
-Network Connection.  This driver includes support for Itanium(R)2-based
-systems.
-
-For questions related to hardware requirements, refer to the documentation
-supplied with your 10 Gigabit adapter.  All hardware requirements listed apply
-to use with Linux.
-
-The following features are available in this kernel:
- - Native VLANs
- - Channel Bonding (teaming)
- - SNMP
-
-Channel Bonding documentation can be found in the Linux kernel source:
-/Documentation/networking/bonding.rst
-
-The driver information previously displayed in the /proc filesystem is not
-supported in this release.  Alternatively, you can use ethtool (version 1.6
-or later), lspci, and iproute2 to obtain the same information.
-
-Instructions on updating ethtool can be found in the section "Additional
-Configurations" later in this document.
-
-
-Identifying Your Adapter
-========================
-
-The following Intel network adapters are compatible with the drivers in this
-release:
-
-+------------+------------------------------+----------------------------------+
-| Controller | Adapter Name                 | Physical Layer                   |
-+============+==============================+==================================+
-| 82597EX    | Intel(R) PRO/10GbE LR/SR/CX4 | - 10G Base-LR (fiber)            |
-|            | Server Adapters              | - 10G Base-SR (fiber)            |
-|            |                              | - 10G Base-CX4 (copper)          |
-+------------+------------------------------+----------------------------------+
-
-For more information on how to identify your adapter, go to the Adapter &
-Driver ID Guide at:
-
-    https://support.intel.com
-
-
-Command Line Parameters
-=======================
-
-If the driver is built as a module, the  following optional parameters are
-used by entering them on the command line with the modprobe command using
-this syntax::
-
-    modprobe ixgb [<option>=<VAL1>,<VAL2>,...]
-
-For example, with two 10GbE PCI adapters, entering::
-
-    modprobe ixgb TxDescriptors=80,128
-
-loads the ixgb driver with 80 TX resources for the first adapter and 128 TX
-resources for the second adapter.
-
-The default value for each parameter is generally the recommended setting,
-unless otherwise noted.
-
-Copybreak
----------
-:Valid Range: 0-XXXX
-:Default Value: 256
-
-    This is the maximum size of packet that is copied to a new buffer on
-    receive.
-
-Debug
------
-:Valid Range: 0-16 (0=none,...,16=all)
-:Default Value: 0
-
-    This parameter adjusts the level of debug messages displayed in the
-    system logs.
-
-FlowControl
------------
-:Valid Range: 0-3 (0=none, 1=Rx only, 2=Tx only, 3=Rx&Tx)
-:Default Value: 1 if no EEPROM, otherwise read from EEPROM
-
-    This parameter controls the automatic generation(Tx) and response(Rx) to
-    Ethernet PAUSE frames.  There are hardware bugs associated with enabling
-    Tx flow control so beware.
-
-RxDescriptors
--------------
-:Valid Range: 64-4096
-:Default Value: 1024
-
-    This value is the number of receive descriptors allocated by the driver.
-    Increasing this value allows the driver to buffer more incoming packets.
-    Each descriptor is 16 bytes.  A receive buffer is also allocated for
-    each descriptor and can be either 2048, 4056, 8192, or 16384 bytes,
-    depending on the MTU setting.  When the MTU size is 1500 or less, the
-    receive buffer size is 2048 bytes. When the MTU is greater than 1500 the
-    receive buffer size will be either 4056, 8192, or 16384 bytes.  The
-    maximum MTU size is 16114.
-
-TxDescriptors
--------------
-:Valid Range: 64-4096
-:Default Value: 256
-
-    This value is the number of transmit descriptors allocated by the driver.
-    Increasing this value allows the driver to queue more transmits.  Each
-    descriptor is 16 bytes.
-
-RxIntDelay
-----------
-:Valid Range: 0-65535 (0=off)
-:Default Value: 72
-
-    This value delays the generation of receive interrupts in units of
-    0.8192 microseconds.  Receive interrupt reduction can improve CPU
-    efficiency if properly tuned for specific network traffic.  Increasing
-    this value adds extra latency to frame reception and can end up
-    decreasing the throughput of TCP traffic.  If the system is reporting
-    dropped receives, this value may be set too high, causing the driver to
-    run out of available receive descriptors.
-
-TxIntDelay
-----------
-:Valid Range: 0-65535 (0=off)
-:Default Value: 32
-
-    This value delays the generation of transmit interrupts in units of
-    0.8192 microseconds.  Transmit interrupt reduction can improve CPU
-    efficiency if properly tuned for specific network traffic.  Increasing
-    this value adds extra latency to frame transmission and can end up
-    decreasing the throughput of TCP traffic.  If this value is set too high,
-    it will cause the driver to run out of available transmit descriptors.
-
-XsumRX
-------
-:Valid Range: 0-1
-:Default Value: 1
-
-    A value of '1' indicates that the driver should enable IP checksum
-    offload for received packets (both UDP and TCP) to the adapter hardware.
-
-RxFCHighThresh
---------------
-:Valid Range: 1,536-262,136 (0x600 - 0x3FFF8, 8 byte granularity)
-:Default Value: 196,608 (0x30000)
-
-    Receive Flow control high threshold (when we send a pause frame)
-
-RxFCLowThresh
--------------
-:Valid Range: 64-262,136 (0x40 - 0x3FFF8, 8 byte granularity)
-:Default Value: 163,840 (0x28000)
-
-    Receive Flow control low threshold (when we send a resume frame)
-
-FCReqTimeout
-------------
-:Valid Range: 1-65535
-:Default Value: 65535
-
-    Flow control request timeout (how long to pause the link partner's tx)
-
-IntDelayEnable
---------------
-:Value Range: 0,1
-:Default Value: 1
-
-    Interrupt Delay, 0 disables transmit interrupt delay and 1 enables it.
-
-
-Improving Performance
-=====================
-
-With the 10 Gigabit server adapters, the default Linux configuration will
-very likely limit the total available throughput artificially.  There is a set
-of configuration changes that, when applied together, will increase the ability
-of Linux to transmit and receive data.  The following enhancements were
-originally acquired from settings published at https://www.spec.org/web99/ for
-various submitted results using Linux.
-
-NOTE:
-  These changes are only suggestions, and serve as a starting point for
-  tuning your network performance.
-
-The changes are made in three major ways, listed in order of greatest effect:
-
-- Use ip link to modify the mtu (maximum transmission unit) and the txqueuelen
-  parameter.
-- Use sysctl to modify /proc parameters (essentially kernel tuning)
-- Use setpci to modify the MMRBC field in PCI-X configuration space to increase
-  transmit burst lengths on the bus.
-
-NOTE:
-  setpci modifies the adapter's configuration registers to allow it to read
-  up to 4k bytes at a time (for transmits).  However, for some systems the
-  behavior after modifying this register may be undefined (possibly errors of
-  some kind).  A power-cycle, hard reset or explicitly setting the e6 register
-  back to 22 (setpci -d 8086:1a48 e6.b=22) may be required to get back to a
-  stable configuration.
-
-- COPY these lines and paste them into ixgb_perf.sh:
-
-::
-
-  #!/bin/bash
-  echo "configuring network performance , edit this file to change the interface
-  or device ID of 10GbE card"
-  # set mmrbc to 4k reads, modify only Intel 10GbE device IDs
-  # replace 1a48 with appropriate 10GbE device's ID installed on the system,
-  # if needed.
-  setpci -d 8086:1a48 e6.b=2e
-  # set the MTU (max transmission unit) - it requires your switch and clients
-  # to change as well.
-  # set the txqueuelen
-  # your ixgb adapter should be loaded as eth1 for this to work, change if needed
-  ip li set dev eth1 mtu 9000 txqueuelen 1000 up
-  # call the sysctl utility to modify /proc/sys entries
-  sysctl -p ./sysctl_ixgb.conf
-
-- COPY these lines and paste them into sysctl_ixgb.conf:
-
-::
-
-  # some of the defaults may be different for your kernel
-  # call this file with sysctl -p <this file>
-  # these are just suggested values that worked well to increase throughput in
-  # several network benchmark tests, your mileage may vary
-
-  ### IPV4 specific settings
-  # turn TCP timestamp support off, default 1, reduces CPU use
-  net.ipv4.tcp_timestamps = 0
-  # turn SACK support off, default on
-  # on systems with a VERY fast bus -> memory interface this is the big gainer
-  net.ipv4.tcp_sack = 0
-  # set min/default/max TCP read buffer, default 4096 87380 174760
-  net.ipv4.tcp_rmem = 10000000 10000000 10000000
-  # set min/pressure/max TCP write buffer, default 4096 16384 131072
-  net.ipv4.tcp_wmem = 10000000 10000000 10000000
-  # set min/pressure/max TCP buffer space, default 31744 32256 32768
-  net.ipv4.tcp_mem = 10000000 10000000 10000000
-
-  ### CORE settings (mostly for socket and UDP effect)
-  # set maximum receive socket buffer size, default 131071
-  net.core.rmem_max = 524287
-  # set maximum send socket buffer size, default 131071
-  net.core.wmem_max = 524287
-  # set default receive socket buffer size, default 65535
-  net.core.rmem_default = 524287
-  # set default send socket buffer size, default 65535
-  net.core.wmem_default = 524287
-  # set maximum amount of option memory buffers, default 10240
-  net.core.optmem_max = 524287
-  # set number of unprocessed input packets before kernel starts dropping them; default 300
-  net.core.netdev_max_backlog = 300000
-
-Edit the ixgb_perf.sh script if necessary to change eth1 to whatever interface
-your ixgb driver is using and/or replace '1a48' with appropriate 10GbE device's
-ID installed on the system.
-
-NOTE:
-  Unless these scripts are added to the boot process, these changes will
-  only last only until the next system reboot.
-
-
-Resolving Slow UDP Traffic
---------------------------
-If your server does not seem to be able to receive UDP traffic as fast as it
-can receive TCP traffic, it could be because Linux, by default, does not set
-the network stack buffers as large as they need to be to support high UDP
-transfer rates.  One way to alleviate this problem is to allow more memory to
-be used by the IP stack to store incoming data.
-
-For instance, use the commands::
-
-    sysctl -w net.core.rmem_max=262143
-
-and::
-
-    sysctl -w net.core.rmem_default=262143
-
-to increase the read buffer memory max and default to 262143 (256k - 1) from
-defaults of max=131071 (128k - 1) and default=65535 (64k - 1).  These variables
-will increase the amount of memory used by the network stack for receives, and
-can be increased significantly more if necessary for your application.
-
-
-Additional Configurations
-=========================
-
-Configuring the Driver on Different Distributions
--------------------------------------------------
-Configuring a network driver to load properly when the system is started is
-distribution dependent. Typically, the configuration process involves adding
-an alias line to /etc/modprobe.conf as well as editing other system startup
-scripts and/or configuration files.  Many popular Linux distributions ship
-with tools to make these changes for you.  To learn the proper way to
-configure a network device for your system, refer to your distribution
-documentation.  If during this process you are asked for the driver or module
-name, the name for the Linux Base Driver for the Intel 10GbE Family of
-Adapters is ixgb.
-
-Viewing Link Messages
----------------------
-Link messages will not be displayed to the console if the distribution is
-restricting system messages. In order to see network driver link messages on
-your console, set dmesg to eight by entering the following::
-
-    dmesg -n 8
-
-NOTE: This setting is not saved across reboots.
-
-Jumbo Frames
-------------
-The driver supports Jumbo Frames for all adapters. Jumbo Frames support is
-enabled by changing the MTU to a value larger than the default of 1500.
-The maximum value for the MTU is 16114.  Use the ip command to
-increase the MTU size.  For example::
-
-    ip li set dev ethx mtu 9000
-
-The maximum MTU setting for Jumbo Frames is 16114.  This value coincides
-with the maximum Jumbo Frames size of 16128.
-
-Ethtool
--------
-The driver utilizes the ethtool interface for driver configuration and
-diagnostics, as well as displaying statistical information.  The ethtool
-version 1.6 or later is required for this functionality.
-
-The latest release of ethtool can be found from
-https://www.kernel.org/pub/software/network/ethtool/
-
-NOTE:
-  The ethtool version 1.6 only supports a limited set of ethtool options.
-  Support for a more complete ethtool feature set can be enabled by
-  upgrading to the latest version.
-
-NAPI
-----
-NAPI (Rx polling mode) is supported in the ixgb driver.
-
-See https://wiki.linuxfoundation.org/networking/napi for more information on
-NAPI.
-
-
-Known Issues/Troubleshooting
-============================
-
-NOTE:
-  After installing the driver, if your Intel Network Connection is not
-  working, verify in the "In This Release" section of the readme that you have
-  installed the correct driver.
-
-Cable Interoperability Issue with Fujitsu XENPAK Module in SmartBits Chassis
-----------------------------------------------------------------------------
-Excessive CRC errors may be observed if the Intel(R) PRO/10GbE CX4
-Server adapter is connected to a Fujitsu XENPAK CX4 module in a SmartBits
-chassis using 15 m/24AWG cable assemblies manufactured by Fujitsu or Leoni.
-The CRC errors may be received either by the Intel(R) PRO/10GbE CX4
-Server adapter or the SmartBits. If this situation occurs using a different
-cable assembly may resolve the issue.
-
-Cable Interoperability Issues with HP Procurve 3400cl Switch Port
------------------------------------------------------------------
-Excessive CRC errors may be observed if the Intel(R) PRO/10GbE CX4 Server
-adapter is connected to an HP Procurve 3400cl switch port using short cables
-(1 m or shorter). If this situation occurs, using a longer cable may resolve
-the issue.
-
-Excessive CRC errors may be observed using Fujitsu 24AWG cable assemblies that
-Are 10 m or longer or where using a Leoni 15 m/24AWG cable assembly. The CRC
-errors may be received either by the CX4 Server adapter or at the switch. If
-this situation occurs, using a different cable assembly may resolve the issue.
-
-Jumbo Frames System Requirement
--------------------------------
-Memory allocation failures have been observed on Linux systems with 64 MB
-of RAM or less that are running Jumbo Frames.  If you are using Jumbo
-Frames, your system may require more than the advertised minimum
-requirement of 64 MB of system memory.
-
-Performance Degradation with Jumbo Frames
------------------------------------------
-Degradation in throughput performance may be observed in some Jumbo frames
-environments.  If this is observed, increasing the application's socket buffer
-size and/or increasing the /proc/sys/net/ipv4/tcp_*mem entry values may help.
-See the specific application manual and /usr/src/linux*/Documentation/
-networking/ip-sysctl.txt for more details.
-
-Allocating Rx Buffers when Using Jumbo Frames
----------------------------------------------
-Allocating Rx buffers when using Jumbo Frames on 2.6.x kernels may fail if
-the available memory is heavily fragmented. This issue may be seen with PCI-X
-adapters or with packet split disabled. This can be reduced or eliminated
-by changing the amount of available memory for receive buffer allocation, by
-increasing /proc/sys/vm/min_free_kbytes.
-
-Multiple Interfaces on Same Ethernet Broadcast Network
-------------------------------------------------------
-Due to the default ARP behavior on Linux, it is not possible to have
-one system on two IP networks in the same Ethernet broadcast domain
-(non-partitioned switch) behave as expected.  All Ethernet interfaces
-will respond to IP traffic for any IP address assigned to the system.
-This results in unbalanced receive traffic.
-
-If you have multiple interfaces in a server, do either of the following:
-
-  - Turn on ARP filtering by entering::
-
-      echo 1 > /proc/sys/net/ipv4/conf/all/arp_filter
-
-  - Install the interfaces in separate broadcast domains - either in
-    different switches or in a switch partitioned to VLANs.
-
-UDP Stress Test Dropped Packet Issue
---------------------------------------
-Under small packets UDP stress test with 10GbE driver, the Linux system
-may drop UDP packets due to the fullness of socket buffers. You may want
-to change the driver's Flow Control variables to the minimum value for
-controlling packet reception.
-
-Tx Hangs Possible Under Stress
-------------------------------
-Under stress conditions, if TX hangs occur, turning off TSO
-"ethtool -K eth0 tso off" may resolve the problem.
-
-
-Support
-=======
-For general information, go to the Intel support website at:
-
-https://www.intel.com/support/
-
-or the Intel Wired Networking project hosted by Sourceforge at:
-
-https://sourceforge.net/projects/e1000
-
-If an issue is identified with the released source code on a supported kernel
-with a supported adapter, email the specific information related to the issue
-to e1000-devel@lists.sf.net

arch/loongarch/configs/loongson3_defconfig

@@ -487,7 +487,6 @@ CONFIG_CHELSIO_T4=m
 CONFIG_E1000=y
 CONFIG_E1000E=y
 CONFIG_IGB=y
-CONFIG_IXGB=y
 CONFIG_IXGBE=y
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MELLANOX is not set

arch/mips/configs/loongson2k_defconfig

@@ -154,7 +154,6 @@ CONFIG_TUN=m
 CONFIG_E1000=y
 CONFIG_E1000E=y
 CONFIG_IGB=y
-CONFIG_IXGB=y
 CONFIG_IXGBE=y
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MELLANOX is not set

arch/mips/configs/loongson3_defconfig

@@ -207,7 +207,6 @@ CONFIG_VIRTIO_NET=m
 CONFIG_E1000=y
 CONFIG_E1000E=y
 CONFIG_IGB=y
-CONFIG_IXGB=y
 CONFIG_IXGBE=y
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MELLANOX is not set

arch/mips/configs/mtx1_defconfig

@@ -280,7 +280,6 @@ CONFIG_SUNDANCE=m
 CONFIG_PCMCIA_FMVJ18X=m
 CONFIG_E100=m
 CONFIG_E1000=m
-CONFIG_IXGB=m
 CONFIG_SKGE=m
 CONFIG_SKY2=m
 CONFIG_MYRI10GE=m

arch/powerpc/configs/powernv_defconfig

@@ -170,7 +170,6 @@ CONFIG_S2IO=m
 CONFIG_E100=y
 CONFIG_E1000=y
 CONFIG_E1000E=y
-CONFIG_IXGB=m
 CONFIG_IXGBE=m
 CONFIG_I40E=m
 CONFIG_MLX4_EN=m

arch/powerpc/configs/ppc64_defconfig

@@ -182,7 +182,6 @@ CONFIG_IBMVNIC=m
 CONFIG_E100=y
 CONFIG_E1000=y
 CONFIG_E1000E=y
-CONFIG_IXGB=m
 CONFIG_IXGBE=m
 CONFIG_I40E=m
 CONFIG_MLX4_EN=m

arch/powerpc/configs/ppc64e_defconfig

@@ -102,7 +102,6 @@ CONFIG_PCNET32=y
 CONFIG_TIGON3=y
 CONFIG_E100=y
 CONFIG_E1000=y
-CONFIG_IXGB=m
 CONFIG_SUNGEM=y
 CONFIG_BROADCOM_PHY=m
 CONFIG_MARVELL_PHY=y

arch/powerpc/configs/ppc6xx_defconfig

@@ -455,7 +455,6 @@ CONFIG_E100=m
 CONFIG_E1000=m
 CONFIG_E1000E=m
 CONFIG_IGB=m
-CONFIG_IXGB=m
 CONFIG_IXGBE=m
 CONFIG_MV643XX_ETH=m
 CONFIG_SKGE=m

arch/powerpc/configs/pseries_defconfig

@@ -164,7 +164,6 @@ CONFIG_IBMVNIC=y
 CONFIG_E100=y
 CONFIG_E1000=y
 CONFIG_E1000E=y
-CONFIG_IXGB=m
 CONFIG_IXGBE=m
 CONFIG_I40E=m
 CONFIG_MLX4_EN=m

arch/powerpc/configs/skiroot_defconfig

@@ -149,7 +149,6 @@ CONFIG_BE2NET=m
 CONFIG_E1000=m
 CONFIG_E1000E=m
 CONFIG_IGB=m
-CONFIG_IXGB=m
 CONFIG_IXGBE=m
 CONFIG_I40E=m
 # CONFIG_NET_VENDOR_MARVELL is not set

drivers/net/ethernet/intel/Kconfig

@@ -139,23 +139,6 @@ config IGBVF
 	  To compile this driver as a module, choose M here. The module
 	  will be called igbvf.
 
-config IXGB
-	tristate "Intel(R) PRO/10GbE support"
-	depends on PCI
-	help
-	  This driver supports Intel(R) PRO/10GbE family of adapters for
-	  PCI-X type cards. For PCI-E type cards, use the "ixgbe" driver
-	  instead. For more information on how to identify your adapter, go
-	  to the Adapter & Driver ID Guide that can be located at:
-
-	  <http://support.intel.com>
-
-	  More specific information on configuring the driver is in
-	  <file:Documentation/networking/device_drivers/ethernet/intel/ixgb.rst>.
-
-	  To compile this driver as a module, choose M here. The module
-	  will be called ixgb.
-
 config IXGBE
 	tristate "Intel(R) 10GbE PCI Express adapters support"
 	depends on PCI

drivers/net/ethernet/intel/Makefile

@@ -12,7 +12,6 @@ obj-$(CONFIG_IGBVF) += igbvf/
 obj-$(CONFIG_IXGBE) += ixgbe/
 obj-$(CONFIG_IXGBEVF) += ixgbevf/
 obj-$(CONFIG_I40E) += i40e/
-obj-$(CONFIG_IXGB) += ixgb/
 obj-$(CONFIG_IAVF) += iavf/
 obj-$(CONFIG_FM10K) += fm10k/
 obj-$(CONFIG_ICE) += ice/

drivers/net/ethernet/intel/ixgb/Makefile

-# SPDX-License-Identifier: GPL-2.0
-# Copyright(c) 1999 - 2008 Intel Corporation.
-#
-# Makefile for the Intel(R) PRO/10GbE ethernet driver
-#
-
-obj-$(CONFIG_IXGB) += ixgb.o
-
-ixgb-objs := ixgb_main.o ixgb_hw.o ixgb_ee.o ixgb_ethtool.o ixgb_param.o

drivers/net/ethernet/intel/ixgb/ixgb.h

-/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright(c) 1999 - 2008 Intel Corporation. */
-
-#ifndef _IXGB_H_
-#define _IXGB_H_
-
-#include <linux/stddef.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <asm/byteorder.h>
-#include <linux/mm.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/interrupt.h>
-#include <linux/string.h>
-#include <linux/pagemap.h>
-#include <linux/dma-mapping.h>
-#include <linux/bitops.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <linux/capability.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/udp.h>
-#include <net/pkt_sched.h>
-#include <linux/list.h>
-#include <linux/reboot.h>
-#include <net/checksum.h>
-
-#include <linux/ethtool.h>
-#include <linux/if_vlan.h>
-
-#define BAR_0		0
-#define BAR_1		1
-
-struct ixgb_adapter;
-#include "ixgb_hw.h"
-#include "ixgb_ee.h"
-#include "ixgb_ids.h"
-
-/* TX/RX descriptor defines */
-#define DEFAULT_TXD      256
-#define MAX_TXD         4096
-#define MIN_TXD           64
-
-/* hardware cannot reliably support more than 512 descriptors owned by
- * hardware descriptor cache otherwise an unreliable ring under heavy
- * receive load may result */
-#define DEFAULT_RXD      512
-#define MAX_RXD          512
-#define MIN_RXD           64
-
-/* Supported Rx Buffer Sizes */
-#define IXGB_RXBUFFER_2048  2048
-#define IXGB_RXBUFFER_4096  4096
-#define IXGB_RXBUFFER_8192  8192
-#define IXGB_RXBUFFER_16384 16384
-
-/* How many Rx Buffers do we bundle into one write to the hardware ? */
-#define IXGB_RX_BUFFER_WRITE	8	/* Must be power of 2 */
-
-/* wrapper around a pointer to a socket buffer,
- * so a DMA handle can be stored along with the buffer */
-struct ixgb_buffer {
-	struct sk_buff *skb;
-	dma_addr_t dma;
-	unsigned long time_stamp;
-	u16 length;
-	u16 next_to_watch;
-	u16 mapped_as_page;
-};
-
-struct ixgb_desc_ring {
-	/* pointer to the descriptor ring memory */
-	void *desc;
-	/* physical address of the descriptor ring */
-	dma_addr_t dma;
-	/* length of descriptor ring in bytes */
-	unsigned int size;
-	/* number of descriptors in the ring */
-	unsigned int count;
-	/* next descriptor to associate a buffer with */
-	unsigned int next_to_use;
-	/* next descriptor to check for DD status bit */
-	unsigned int next_to_clean;
-	/* array of buffer information structs */
-	struct ixgb_buffer *buffer_info;
-};
-
-#define IXGB_DESC_UNUSED(R) \
-	((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
-	(R)->next_to_clean - (R)->next_to_use - 1)
-
-#define IXGB_GET_DESC(R, i, type)	(&(((struct type *)((R).desc))[i]))
-#define IXGB_RX_DESC(R, i)		IXGB_GET_DESC(R, i, ixgb_rx_desc)
-#define IXGB_TX_DESC(R, i)		IXGB_GET_DESC(R, i, ixgb_tx_desc)
-#define IXGB_CONTEXT_DESC(R, i)	IXGB_GET_DESC(R, i, ixgb_context_desc)
-
-/* board specific private data structure */
-
-struct ixgb_adapter {
-	struct timer_list watchdog_timer;
-	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
-	u32 bd_number;
-	u32 rx_buffer_len;
-	u32 part_num;
-	u16 link_speed;
-	u16 link_duplex;
-	struct work_struct tx_timeout_task;
-
-	/* TX */
-	struct ixgb_desc_ring tx_ring ____cacheline_aligned_in_smp;
-	unsigned int restart_queue;
-	unsigned long timeo_start;
-	u32 tx_cmd_type;
-	u64 hw_csum_tx_good;
-	u64 hw_csum_tx_error;
-	u32 tx_int_delay;
-	u32 tx_timeout_count;
-	bool tx_int_delay_enable;
-	bool detect_tx_hung;
-
-	/* RX */
-	struct ixgb_desc_ring rx_ring;
-	u64 hw_csum_rx_error;
-	u64 hw_csum_rx_good;
-	u32 rx_int_delay;
-	bool rx_csum;
-
-	/* OS defined structs */
-	struct napi_struct napi;
-	struct net_device *netdev;
-	struct pci_dev *pdev;
-
-	/* structs defined in ixgb_hw.h */
-	struct ixgb_hw hw;
-	u16 msg_enable;
-	struct ixgb_hw_stats stats;
-	u32 alloc_rx_buff_failed;
-	bool have_msi;
-	unsigned long flags;
-};
-
-enum ixgb_state_t {
-	/* TBD
-	__IXGB_TESTING,
-	__IXGB_RESETTING,
-	*/
-	__IXGB_DOWN
-};
-
-/* Exported from other modules */
-void ixgb_check_options(struct ixgb_adapter *adapter);
-void ixgb_set_ethtool_ops(struct net_device *netdev);
-extern char ixgb_driver_name[];
-
-void ixgb_set_speed_duplex(struct net_device *netdev);
-
-int ixgb_up(struct ixgb_adapter *adapter);
-void ixgb_down(struct ixgb_adapter *adapter, bool kill_watchdog);
-void ixgb_reset(struct ixgb_adapter *adapter);
-int ixgb_setup_rx_resources(struct ixgb_adapter *adapter);
-int ixgb_setup_tx_resources(struct ixgb_adapter *adapter);
-void ixgb_free_rx_resources(struct ixgb_adapter *adapter);
-void ixgb_free_tx_resources(struct ixgb_adapter *adapter);
-void ixgb_update_stats(struct ixgb_adapter *adapter);
-
-
-#endif /* _IXGB_H_ */

drivers/net/ethernet/intel/ixgb/ixgb_ee.c

-// SPDX-License-Identifier: GPL-2.0
-/* Copyright(c) 1999 - 2008 Intel Corporation. */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include "ixgb_hw.h"
-#include "ixgb_ee.h"
-/* Local prototypes */
-static u16 ixgb_shift_in_bits(struct ixgb_hw *hw);
-
-static void ixgb_shift_out_bits(struct ixgb_hw *hw,
-				u16 data,
-				u16 count);
-static void ixgb_standby_eeprom(struct ixgb_hw *hw);
-
-static bool ixgb_wait_eeprom_command(struct ixgb_hw *hw);
-
-static void ixgb_cleanup_eeprom(struct ixgb_hw *hw);
-
-/******************************************************************************
- * Raises the EEPROM's clock input.
- *
- * hw - Struct containing variables accessed by shared code
- * eecd_reg - EECD's current value
- *****************************************************************************/
-static void
-ixgb_raise_clock(struct ixgb_hw *hw,
-		  u32 *eecd_reg)
-{
-	/* Raise the clock input to the EEPROM (by setting the SK bit), and then
-	 *  wait 50 microseconds.
-	 */
-	*eecd_reg = *eecd_reg | IXGB_EECD_SK;
-	IXGB_WRITE_REG(hw, EECD, *eecd_reg);
-	IXGB_WRITE_FLUSH(hw);
-	udelay(50);
-}
-
-/******************************************************************************
- * Lowers the EEPROM's clock input.
- *
- * hw - Struct containing variables accessed by shared code
- * eecd_reg - EECD's current value
- *****************************************************************************/
-static void
-ixgb_lower_clock(struct ixgb_hw *hw,
-		  u32 *eecd_reg)
-{
-	/* Lower the clock input to the EEPROM (by clearing the SK bit), and then
-	 * wait 50 microseconds.
-	 */
-	*eecd_reg = *eecd_reg & ~IXGB_EECD_SK;
-	IXGB_WRITE_REG(hw, EECD, *eecd_reg);
-	IXGB_WRITE_FLUSH(hw);
-	udelay(50);
-}
-
-/******************************************************************************
- * Shift data bits out to the EEPROM.
- *
- * hw - Struct containing variables accessed by shared code
- * data - data to send to the EEPROM
- * count - number of bits to shift out
- *****************************************************************************/
-static void
-ixgb_shift_out_bits(struct ixgb_hw *hw,
-					 u16 data,
-					 u16 count)
-{
-	u32 eecd_reg;
-	u32 mask;
-
-	/* We need to shift "count" bits out to the EEPROM. So, value in the
-	 * "data" parameter will be shifted out to the EEPROM one bit at a time.
-	 * In order to do this, "data" must be broken down into bits.
-	 */
-	mask = 0x01 << (count - 1);
-	eecd_reg = IXGB_READ_REG(hw, EECD);
-	eecd_reg &= ~(IXGB_EECD_DO | IXGB_EECD_DI);
-	do {
-		/* A "1" is shifted out to the EEPROM by setting bit "DI" to a "1",
-		 * and then raising and then lowering the clock (the SK bit controls
-		 * the clock input to the EEPROM).  A "0" is shifted out to the EEPROM
-		 * by setting "DI" to "0" and then raising and then lowering the clock.
-		 */
-		eecd_reg &= ~IXGB_EECD_DI;
-
-		if (data & mask)
-			eecd_reg |= IXGB_EECD_DI;
-
-		IXGB_WRITE_REG(hw, EECD, eecd_reg);
-		IXGB_WRITE_FLUSH(hw);
-
-		udelay(50);
-
-		ixgb_raise_clock(hw, &eecd_reg);
-		ixgb_lower_clock(hw, &eecd_reg);
-
-		mask = mask >> 1;
-
-	} while (mask);
-
-	/* We leave the "DI" bit set to "0" when we leave this routine. */
-	eecd_reg &= ~IXGB_EECD_DI;
-	IXGB_WRITE_REG(hw, EECD, eecd_reg);
-}
-
-/******************************************************************************
- * Shift data bits in from the EEPROM
- *
- * hw - Struct containing variables accessed by shared code
- *****************************************************************************/
-static u16
-ixgb_shift_in_bits(struct ixgb_hw *hw)
-{
-	u32 eecd_reg;
-	u32 i;
-	u16 data;
-
-	/* In order to read a register from the EEPROM, we need to shift 16 bits
-	 * in from the EEPROM. Bits are "shifted in" by raising the clock input to
-	 * the EEPROM (setting the SK bit), and then reading the value of the "DO"
-	 * bit.  During this "shifting in" process the "DI" bit should always be
-	 * clear..
-	 */
-
-	eecd_reg = IXGB_READ_REG(hw, EECD);
-
-	eecd_reg &= ~(IXGB_EECD_DO | IXGB_EECD_DI);
-	data = 0;
-
-	for (i = 0; i < 16; i++) {
-		data = data << 1;
-		ixgb_raise_clock(hw, &eecd_reg);
-
-		eecd_reg = IXGB_READ_REG(hw, EECD);
-
-		eecd_reg &= ~(IXGB_EECD_DI);
-		if (eecd_reg & IXGB_EECD_DO)
-			data |= 1;
-
-		ixgb_lower_clock(hw, &eecd_reg);
-	}
-
-	return data;
-}
-
-/******************************************************************************
- * Prepares EEPROM for access
- *
- * hw - Struct containing variables accessed by shared code
- *
- * Lowers EEPROM clock. Clears input pin. Sets the chip select pin. This
- * function should be called before issuing a command to the EEPROM.
- *****************************************************************************/
-static void
-ixgb_setup_eeprom(struct ixgb_hw *hw)
-{
-	u32 eecd_reg;
-
-	eecd_reg = IXGB_READ_REG(hw, EECD);
-
-	/*  Clear SK and DI  */
-	eecd_reg &= ~(IXGB_EECD_SK | IXGB_EECD_DI);
-	IXGB_WRITE_REG(hw, EECD, eecd_reg);
-
-	/*  Set CS  */
-	eecd_reg |= IXGB_EECD_CS;
-	IXGB_WRITE_REG(hw, EECD, eecd_reg);
-}
-
-/******************************************************************************
- * Returns EEPROM to a "standby" state
- *
- * hw - Struct containing variables accessed by shared code
- *****************************************************************************/
-static void
-ixgb_standby_eeprom(struct ixgb_hw *hw)
-{
-	u32 eecd_reg;
-
-	eecd_reg = IXGB_READ_REG(hw, EECD);
-
-	/*  Deselect EEPROM  */
-	eecd_reg &= ~(IXGB_EECD_CS | IXGB_EECD_SK);
-	IXGB_WRITE_REG(hw, EECD, eecd_reg);
-	IXGB_WRITE_FLUSH(hw);
-	udelay(50);
-
-	/*  Clock high  */
-	eecd_reg |= IXGB_EECD_SK;
-	IXGB_WRITE_REG(hw, EECD, eecd_reg);
-	IXGB_WRITE_FLUSH(hw);
-	udelay(50);
-
-	/*  Select EEPROM  */
-	eecd_reg |= IXGB_EECD_CS;
-	IXGB_WRITE_REG(hw, EECD, eecd_reg);
-	IXGB_WRITE_FLUSH(hw);
-	udelay(50);
-
-	/*  Clock low  */
-	eecd_reg &= ~IXGB_EECD_SK;
-	IXGB_WRITE_REG(hw, EECD, eecd_reg);
-	IXGB_WRITE_FLUSH(hw);
-	udelay(50);
-}
-
-/******************************************************************************
- * Raises then lowers the EEPROM's clock pin
- *
- * hw - Struct containing variables accessed by shared code
- *****************************************************************************/
-static void
-ixgb_clock_eeprom(struct ixgb_hw *hw)
-{
-	u32 eecd_reg;
-
-	eecd_reg = IXGB_READ_REG(hw, EECD);
-
-	/*  Rising edge of clock  */
-	eecd_reg |= IXGB_EECD_SK;
-	IXGB_WRITE_REG(hw, EECD, eecd_reg);
-	IXGB_WRITE_FLUSH(hw);
-	udelay(50);
-
-	/*  Falling edge of clock  */
-	eecd_reg &= ~IXGB_EECD_SK;
-	IXGB_WRITE_REG(hw, EECD, eecd_reg);
-	IXGB_WRITE_FLUSH(hw);
-	udelay(50);
-}
-
-/******************************************************************************
- * Terminates a command by lowering the EEPROM's chip select pin
- *
- * hw - Struct containing variables accessed by shared code
- *****************************************************************************/
-static void
-ixgb_cleanup_eeprom(struct ixgb_hw *hw)
-{
-	u32 eecd_reg;
-
-	eecd_reg = IXGB_READ_REG(hw, EECD);
-
-	eecd_reg &= ~(IXGB_EECD_CS | IXGB_EECD_DI);
-
-	IXGB_WRITE_REG(hw, EECD, eecd_reg);
-
-	ixgb_clock_eeprom(hw);
-}
-
-/******************************************************************************
- * Waits for the EEPROM to finish the current command.
- *
- * hw - Struct containing variables accessed by shared code
- *
- * The command is done when the EEPROM's data out pin goes high.
- *
- * Returns:
- *      true: EEPROM data pin is high before timeout.
- *      false:  Time expired.
- *****************************************************************************/
-static bool
-ixgb_wait_eeprom_command(struct ixgb_hw *hw)
-{
-	u32 eecd_reg;
-	u32 i;
-
-	/* Toggle the CS line.  This in effect tells to EEPROM to actually execute
-	 * the command in question.
-	 */
-	ixgb_standby_eeprom(hw);
-
-	/* Now read DO repeatedly until is high (equal to '1').  The EEPROM will
-	 * signal that the command has been completed by raising the DO signal.
-	 * If DO does not go high in 10 milliseconds, then error out.
-	 */
-	for (i = 0; i < 200; i++) {
-		eecd_reg = IXGB_READ_REG(hw, EECD);
-
-		if (eecd_reg & IXGB_EECD_DO)
-			return true;
-
-		udelay(50);
-	}
-	ASSERT(0);
-	return false;
-}
-
-/******************************************************************************
- * Verifies that the EEPROM has a valid checksum
- *
- * hw - Struct containing variables accessed by shared code
- *
- * Reads the first 64 16 bit words of the EEPROM and sums the values read.
- * If the sum of the 64 16 bit words is 0xBABA, the EEPROM's checksum is
- * valid.
- *
- * Returns:
- *  true: Checksum is valid
- *  false: Checksum is not valid.
- *****************************************************************************/
-bool
-ixgb_validate_eeprom_checksum(struct ixgb_hw *hw)
-{
-	u16 checksum = 0;
-	u16 i;
-
-	for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++)
-		checksum += ixgb_read_eeprom(hw, i);
-
-	if (checksum == (u16) EEPROM_SUM)
-		return true;
-	else
-		return false;
-}
-
-/******************************************************************************
- * Calculates the EEPROM checksum and writes it to the EEPROM
- *
- * hw - Struct containing variables accessed by shared code
- *
- * Sums the first 63 16 bit words of the EEPROM. Subtracts the sum from 0xBABA.
- * Writes the difference to word offset 63 of the EEPROM.
- *****************************************************************************/
-void
-ixgb_update_eeprom_checksum(struct ixgb_hw *hw)
-{
-	u16 checksum = 0;
-	u16 i;
-
-	for (i = 0; i < EEPROM_CHECKSUM_REG; i++)
-		checksum += ixgb_read_eeprom(hw, i);
-
-	checksum = (u16) EEPROM_SUM - checksum;
-
-	ixgb_write_eeprom(hw, EEPROM_CHECKSUM_REG, checksum);
-}
-
-/******************************************************************************
- * Writes a 16 bit word to a given offset in the EEPROM.
- *
- * hw - Struct containing variables accessed by shared code
- * reg - offset within the EEPROM to be written to
- * data - 16 bit word to be written to the EEPROM
- *
- * If ixgb_update_eeprom_checksum is not called after this function, the
- * EEPROM will most likely contain an invalid checksum.
- *
- *****************************************************************************/
-void
-ixgb_write_eeprom(struct ixgb_hw *hw, u16 offset, u16 data)
-{
-	struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
-
-	/* Prepare the EEPROM for writing */
-	ixgb_setup_eeprom(hw);
-
-	/*  Send the 9-bit EWEN (write enable) command to the EEPROM (5-bit opcode
-	 *  plus 4-bit dummy).  This puts the EEPROM into write/erase mode.
-	 */
-	ixgb_shift_out_bits(hw, EEPROM_EWEN_OPCODE, 5);
-	ixgb_shift_out_bits(hw, 0, 4);
-
-	/*  Prepare the EEPROM  */
-	ixgb_standby_eeprom(hw);
-
-	/*  Send the Write command (3-bit opcode + 6-bit addr)  */
-	ixgb_shift_out_bits(hw, EEPROM_WRITE_OPCODE, 3);
-	ixgb_shift_out_bits(hw, offset, 6);
-
-	/*  Send the data  */
-	ixgb_shift_out_bits(hw, data, 16);
-
-	ixgb_wait_eeprom_command(hw);
-
-	/*  Recover from write  */
-	ixgb_standby_eeprom(hw);
-
-	/* Send the 9-bit EWDS (write disable) command to the EEPROM (5-bit
-	 * opcode plus 4-bit dummy).  This takes the EEPROM out of write/erase
-	 * mode.
-	 */
-	ixgb_shift_out_bits(hw, EEPROM_EWDS_OPCODE, 5);
-	ixgb_shift_out_bits(hw, 0, 4);
-
-	/*  Done with writing  */
-	ixgb_cleanup_eeprom(hw);
-
-	/* clear the init_ctrl_reg_1 to signify that the cache is invalidated */
-	ee_map->init_ctrl_reg_1 = cpu_to_le16(EEPROM_ICW1_SIGNATURE_CLEAR);
-}
-
-/******************************************************************************
- * Reads a 16 bit word from the EEPROM.
- *
- * hw - Struct containing variables accessed by shared code
- * offset - offset of 16 bit word in the EEPROM to read
- *
- * Returns:
- *  The 16-bit value read from the eeprom
- *****************************************************************************/
-u16
-ixgb_read_eeprom(struct ixgb_hw *hw,
-		  u16 offset)
-{
-	u16 data;
-
-	/*  Prepare the EEPROM for reading  */
-	ixgb_setup_eeprom(hw);
-
-	/*  Send the READ command (opcode + addr)  */
-	ixgb_shift_out_bits(hw, EEPROM_READ_OPCODE, 3);
-	/*
-	 * We have a 64 word EEPROM, there are 6 address bits
-	 */
-	ixgb_shift_out_bits(hw, offset, 6);
-
-	/*  Read the data  */
-	data = ixgb_shift_in_bits(hw);
-
-	/*  End this read operation  */
-	ixgb_standby_eeprom(hw);
-
-	return data;
-}
-
-/******************************************************************************
- * Reads eeprom and stores data in shared structure.
- * Validates eeprom checksum and eeprom signature.
- *
- * hw - Struct containing variables accessed by shared code
- *
- * Returns:
- *      true: if eeprom read is successful
- *      false: otherwise.
- *****************************************************************************/
-bool
-ixgb_get_eeprom_data(struct ixgb_hw *hw)
-{
-	u16 i;
-	u16 checksum = 0;
-	struct ixgb_ee_map_type *ee_map;
-
-	ENTER();
-
-	ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
-
-	pr_debug("Reading eeprom data\n");
-	for (i = 0; i < IXGB_EEPROM_SIZE ; i++) {
-		u16 ee_data;
-		ee_data = ixgb_read_eeprom(hw, i);
-		checksum += ee_data;
-		hw->eeprom[i] = cpu_to_le16(ee_data);
-	}
-
-	if (checksum != (u16) EEPROM_SUM) {
-		pr_debug("Checksum invalid\n");
-		/* clear the init_ctrl_reg_1 to signify that the cache is
-		 * invalidated */
-		ee_map->init_ctrl_reg_1 = cpu_to_le16(EEPROM_ICW1_SIGNATURE_CLEAR);
-		return false;
-	}
-
-	if ((ee_map->init_ctrl_reg_1 & cpu_to_le16(EEPROM_ICW1_SIGNATURE_MASK))
-		 != cpu_to_le16(EEPROM_ICW1_SIGNATURE_VALID)) {
-		pr_debug("Signature invalid\n");
-		return false;
-	}
-
-	return true;
-}
-
-/******************************************************************************
- * Local function to check if the eeprom signature is good
- * If the eeprom signature is good, calls ixgb)get_eeprom_data.
- *
- * hw - Struct containing variables accessed by shared code
- *
- * Returns:
- *      true: eeprom signature was good and the eeprom read was successful
- *      false: otherwise.
- ******************************************************************************/
-static bool
-ixgb_check_and_get_eeprom_data (struct ixgb_hw* hw)
-{
-	struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
-
-	if ((ee_map->init_ctrl_reg_1 & cpu_to_le16(EEPROM_ICW1_SIGNATURE_MASK))
-	    == cpu_to_le16(EEPROM_ICW1_SIGNATURE_VALID)) {
-		return true;
-	} else {
-		return ixgb_get_eeprom_data(hw);
-	}
-}
-
-/******************************************************************************
- * return a word from the eeprom
- *
- * hw - Struct containing variables accessed by shared code
- * index - Offset of eeprom word
- *
- * Returns:
- *          Word at indexed offset in eeprom, if valid, 0 otherwise.
- ******************************************************************************/
-__le16
-ixgb_get_eeprom_word(struct ixgb_hw *hw, u16 index)
-{
-
-	if (index < IXGB_EEPROM_SIZE && ixgb_check_and_get_eeprom_data(hw))
-		return hw->eeprom[index];
-
-	return 0;
-}
-
-/******************************************************************************
- * return the mac address from EEPROM
- *
- * hw       - Struct containing variables accessed by shared code
- * mac_addr - Ethernet Address if EEPROM contents are valid, 0 otherwise
- *
- * Returns: None.
- ******************************************************************************/
-void
-ixgb_get_ee_mac_addr(struct ixgb_hw *hw,
-			u8 *mac_addr)
-{
-	int i;
-	struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
-
-	ENTER();
-
-	if (ixgb_check_and_get_eeprom_data(hw)) {
-		for (i = 0; i < ETH_ALEN; i++) {
-			mac_addr[i] = ee_map->mac_addr[i];
-		}
-		pr_debug("eeprom mac address = %pM\n", mac_addr);
-	}
-}
-
-
-/******************************************************************************
- * return the Printed Board Assembly number from EEPROM
- *
- * hw - Struct containing variables accessed by shared code
- *
- * Returns:
- *          PBA number if EEPROM contents are valid, 0 otherwise
- ******************************************************************************/
-u32
-ixgb_get_ee_pba_number(struct ixgb_hw *hw)
-{
-	if (ixgb_check_and_get_eeprom_data(hw))
-		return le16_to_cpu(hw->eeprom[EEPROM_PBA_1_2_REG])
-			| (le16_to_cpu(hw->eeprom[EEPROM_PBA_3_4_REG])<<16);
-
-	return 0;
-}
-
-
-/******************************************************************************
- * return the Device Id from EEPROM
- *
- * hw - Struct containing variables accessed by shared code
- *
- * Returns:
- *          Device Id if EEPROM contents are valid, 0 otherwise
- ******************************************************************************/
-u16
-ixgb_get_ee_device_id(struct ixgb_hw *hw)
-{
-	struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
-
-	if (ixgb_check_and_get_eeprom_data(hw))
-		return le16_to_cpu(ee_map->device_id);
-
-	return 0;
-}
-

drivers/net/ethernet/intel/ixgb/ixgb_ee.h

-/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright(c) 1999 - 2008 Intel Corporation. */
-
-#ifndef _IXGB_EE_H_
-#define _IXGB_EE_H_
-
-#define IXGB_EEPROM_SIZE    64	/* Size in words */
-
-/* EEPROM Commands */
-#define EEPROM_READ_OPCODE  0x6	/* EEPROM read opcode */
-#define EEPROM_WRITE_OPCODE 0x5	/* EEPROM write opcode */
-#define EEPROM_ERASE_OPCODE 0x7	/* EEPROM erase opcode */
-#define EEPROM_EWEN_OPCODE  0x13	/* EEPROM erase/write enable */
-#define EEPROM_EWDS_OPCODE  0x10	/* EEPROM erase/write disable */
-
-/* EEPROM MAP (Word Offsets) */
-#define EEPROM_IA_1_2_REG        0x0000
-#define EEPROM_IA_3_4_REG        0x0001
-#define EEPROM_IA_5_6_REG        0x0002
-#define EEPROM_COMPATIBILITY_REG 0x0003
-#define EEPROM_PBA_1_2_REG       0x0008
-#define EEPROM_PBA_3_4_REG       0x0009
-#define EEPROM_INIT_CONTROL1_REG 0x000A
-#define EEPROM_SUBSYS_ID_REG     0x000B
-#define EEPROM_SUBVEND_ID_REG    0x000C
-#define EEPROM_DEVICE_ID_REG     0x000D
-#define EEPROM_VENDOR_ID_REG     0x000E
-#define EEPROM_INIT_CONTROL2_REG 0x000F
-#define EEPROM_SWDPINS_REG       0x0020
-#define EEPROM_CIRCUIT_CTRL_REG  0x0021
-#define EEPROM_D0_D3_POWER_REG   0x0022
-#define EEPROM_FLASH_VERSION     0x0032
-#define EEPROM_CHECKSUM_REG      0x003F
-
-/* Mask bits for fields in Word 0x0a of the EEPROM */
-
-#define EEPROM_ICW1_SIGNATURE_MASK  0xC000
-#define EEPROM_ICW1_SIGNATURE_VALID 0x4000
-#define EEPROM_ICW1_SIGNATURE_CLEAR 0x0000
-
-/* For checksumming, the sum of all words in the EEPROM should equal 0xBABA. */
-#define EEPROM_SUM 0xBABA
-
-/* EEPROM Map Sizes (Byte Counts) */
-#define PBA_SIZE 4
-
-/* EEPROM Map defines (WORD OFFSETS)*/
-
-/* EEPROM structure */
-struct ixgb_ee_map_type {
-	u8 mac_addr[ETH_ALEN];
-	__le16 compatibility;
-	__le16 reserved1[4];
-	__le32 pba_number;
-	__le16 init_ctrl_reg_1;
-	__le16 subsystem_id;
-	__le16 subvendor_id;
-	__le16 device_id;
-	__le16 vendor_id;
-	__le16 init_ctrl_reg_2;
-	__le16 oem_reserved[16];
-	__le16 swdpins_reg;
-	__le16 circuit_ctrl_reg;
-	u8 d3_power;
-	u8 d0_power;
-	__le16 reserved2[28];
-	__le16 checksum;
-};
-
-/* EEPROM Functions */
-u16 ixgb_read_eeprom(struct ixgb_hw *hw, u16 reg);
-
-bool ixgb_validate_eeprom_checksum(struct ixgb_hw *hw);
-
-void ixgb_update_eeprom_checksum(struct ixgb_hw *hw);
-
-void ixgb_write_eeprom(struct ixgb_hw *hw, u16 reg, u16 data);
-
-#endif				/* IXGB_EE_H */

drivers/net/ethernet/intel/ixgb/ixgb_ethtool.c

-// SPDX-License-Identifier: GPL-2.0
-/* Copyright(c) 1999 - 2008 Intel Corporation. */
-
-/* ethtool support for ixgb */
-
-#include "ixgb.h"
-
-#include <linux/uaccess.h>
-
-#define IXGB_ALL_RAR_ENTRIES 16
-
-enum {NETDEV_STATS, IXGB_STATS};
-
-struct ixgb_stats {
-	char stat_string[ETH_GSTRING_LEN];
-	int type;
-	int sizeof_stat;
-	int stat_offset;
-};
-
-#define IXGB_STAT(m)		IXGB_STATS, \
-				sizeof_field(struct ixgb_adapter, m), \
-				offsetof(struct ixgb_adapter, m)
-#define IXGB_NETDEV_STAT(m)	NETDEV_STATS, \
-				sizeof_field(struct net_device, m), \
-				offsetof(struct net_device, m)
-
-static struct ixgb_stats ixgb_gstrings_stats[] = {
-	{"rx_packets", IXGB_NETDEV_STAT(stats.rx_packets)},
-	{"tx_packets", IXGB_NETDEV_STAT(stats.tx_packets)},
-	{"rx_bytes", IXGB_NETDEV_STAT(stats.rx_bytes)},
-	{"tx_bytes", IXGB_NETDEV_STAT(stats.tx_bytes)},
-	{"rx_errors", IXGB_NETDEV_STAT(stats.rx_errors)},
-	{"tx_errors", IXGB_NETDEV_STAT(stats.tx_errors)},
-	{"rx_dropped", IXGB_NETDEV_STAT(stats.rx_dropped)},
-	{"tx_dropped", IXGB_NETDEV_STAT(stats.tx_dropped)},
-	{"multicast", IXGB_NETDEV_STAT(stats.multicast)},
-	{"collisions", IXGB_NETDEV_STAT(stats.collisions)},
-
-/*	{ "rx_length_errors", IXGB_NETDEV_STAT(stats.rx_length_errors) },	*/
-	{"rx_over_errors", IXGB_NETDEV_STAT(stats.rx_over_errors)},
-	{"rx_crc_errors", IXGB_NETDEV_STAT(stats.rx_crc_errors)},
-	{"rx_frame_errors", IXGB_NETDEV_STAT(stats.rx_frame_errors)},
-	{"rx_no_buffer_count", IXGB_STAT(stats.rnbc)},
-	{"rx_fifo_errors", IXGB_NETDEV_STAT(stats.rx_fifo_errors)},
-	{"rx_missed_errors", IXGB_NETDEV_STAT(stats.rx_missed_errors)},
-	{"tx_aborted_errors", IXGB_NETDEV_STAT(stats.tx_aborted_errors)},
-	{"tx_carrier_errors", IXGB_NETDEV_STAT(stats.tx_carrier_errors)},
-	{"tx_fifo_errors", IXGB_NETDEV_STAT(stats.tx_fifo_errors)},
-	{"tx_heartbeat_errors", IXGB_NETDEV_STAT(stats.tx_heartbeat_errors)},
-	{"tx_window_errors", IXGB_NETDEV_STAT(stats.tx_window_errors)},
-	{"tx_deferred_ok", IXGB_STAT(stats.dc)},
-	{"tx_timeout_count", IXGB_STAT(tx_timeout_count) },
-	{"tx_restart_queue", IXGB_STAT(restart_queue) },
-	{"rx_long_length_errors", IXGB_STAT(stats.roc)},
-	{"rx_short_length_errors", IXGB_STAT(stats.ruc)},
-	{"tx_tcp_seg_good", IXGB_STAT(stats.tsctc)},
-	{"tx_tcp_seg_failed", IXGB_STAT(stats.tsctfc)},
-	{"rx_flow_control_xon", IXGB_STAT(stats.xonrxc)},
-	{"rx_flow_control_xoff", IXGB_STAT(stats.xoffrxc)},
-	{"tx_flow_control_xon", IXGB_STAT(stats.xontxc)},
-	{"tx_flow_control_xoff", IXGB_STAT(stats.xofftxc)},
-	{"rx_csum_offload_good", IXGB_STAT(hw_csum_rx_good)},
-	{"rx_csum_offload_errors", IXGB_STAT(hw_csum_rx_error)},
-	{"tx_csum_offload_good", IXGB_STAT(hw_csum_tx_good)},
-	{"tx_csum_offload_errors", IXGB_STAT(hw_csum_tx_error)}
-};
-
-#define IXGB_STATS_LEN	ARRAY_SIZE(ixgb_gstrings_stats)
-
-static int
-ixgb_get_link_ksettings(struct net_device *netdev,
-			struct ethtool_link_ksettings *cmd)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-
-	ethtool_link_ksettings_zero_link_mode(cmd, supported);
-	ethtool_link_ksettings_add_link_mode(cmd, supported, 10000baseT_Full);
-	ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
-
-	ethtool_link_ksettings_zero_link_mode(cmd, advertising);
-	ethtool_link_ksettings_add_link_mode(cmd, advertising, 10000baseT_Full);
-	ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE);
-
-	cmd->base.port = PORT_FIBRE;
-
-	if (netif_carrier_ok(adapter->netdev)) {
-		cmd->base.speed = SPEED_10000;
-		cmd->base.duplex = DUPLEX_FULL;
-	} else {
-		cmd->base.speed = SPEED_UNKNOWN;
-		cmd->base.duplex = DUPLEX_UNKNOWN;
-	}
-
-	cmd->base.autoneg = AUTONEG_DISABLE;
-	return 0;
-}
-
-void ixgb_set_speed_duplex(struct net_device *netdev)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	/* be optimistic about our link, since we were up before */
-	adapter->link_speed = 10000;
-	adapter->link_duplex = FULL_DUPLEX;
-	netif_carrier_on(netdev);
-	netif_wake_queue(netdev);
-}
-
-static int
-ixgb_set_link_ksettings(struct net_device *netdev,
-			const struct ethtool_link_ksettings *cmd)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	u32 speed = cmd->base.speed;
-
-	if (cmd->base.autoneg == AUTONEG_ENABLE ||
-	    (speed + cmd->base.duplex != SPEED_10000 + DUPLEX_FULL))
-		return -EINVAL;
-
-	if (netif_running(adapter->netdev)) {
-		ixgb_down(adapter, true);
-		ixgb_reset(adapter);
-		ixgb_up(adapter);
-		ixgb_set_speed_duplex(netdev);
-	} else
-		ixgb_reset(adapter);
-
-	return 0;
-}
-
-static void
-ixgb_get_pauseparam(struct net_device *netdev,
-			 struct ethtool_pauseparam *pause)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	struct ixgb_hw *hw = &adapter->hw;
-
-	pause->autoneg = AUTONEG_DISABLE;
-
-	if (hw->fc.type == ixgb_fc_rx_pause)
-		pause->rx_pause = 1;
-	else if (hw->fc.type == ixgb_fc_tx_pause)
-		pause->tx_pause = 1;
-	else if (hw->fc.type == ixgb_fc_full) {
-		pause->rx_pause = 1;
-		pause->tx_pause = 1;
-	}
-}
-
-static int
-ixgb_set_pauseparam(struct net_device *netdev,
-			 struct ethtool_pauseparam *pause)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	struct ixgb_hw *hw = &adapter->hw;
-
-	if (pause->autoneg == AUTONEG_ENABLE)
-		return -EINVAL;
-
-	if (pause->rx_pause && pause->tx_pause)
-		hw->fc.type = ixgb_fc_full;
-	else if (pause->rx_pause && !pause->tx_pause)
-		hw->fc.type = ixgb_fc_rx_pause;
-	else if (!pause->rx_pause && pause->tx_pause)
-		hw->fc.type = ixgb_fc_tx_pause;
-	else if (!pause->rx_pause && !pause->tx_pause)
-		hw->fc.type = ixgb_fc_none;
-
-	if (netif_running(adapter->netdev)) {
-		ixgb_down(adapter, true);
-		ixgb_up(adapter);
-		ixgb_set_speed_duplex(netdev);
-	} else
-		ixgb_reset(adapter);
-
-	return 0;
-}
-
-static u32
-ixgb_get_msglevel(struct net_device *netdev)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	return adapter->msg_enable;
-}
-
-static void
-ixgb_set_msglevel(struct net_device *netdev, u32 data)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	adapter->msg_enable = data;
-}
-#define IXGB_GET_STAT(_A_, _R_) _A_->stats._R_
-
-static int
-ixgb_get_regs_len(struct net_device *netdev)
-{
-#define IXGB_REG_DUMP_LEN  136*sizeof(u32)
-	return IXGB_REG_DUMP_LEN;
-}
-
-static void
-ixgb_get_regs(struct net_device *netdev,
-		   struct ethtool_regs *regs, void *p)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	struct ixgb_hw *hw = &adapter->hw;
-	u32 *reg = p;
-	u32 *reg_start = reg;
-	u8 i;
-
-	/* the 1 (one) below indicates an attempt at versioning, if the
-	 * interface in ethtool or the driver changes, this 1 should be
-	 * incremented */
-	regs->version = (1<<24) | hw->revision_id << 16 | hw->device_id;
-
-	/* General Registers */
-	*reg++ = IXGB_READ_REG(hw, CTRL0);	/*   0 */
-	*reg++ = IXGB_READ_REG(hw, CTRL1);	/*   1 */
-	*reg++ = IXGB_READ_REG(hw, STATUS);	/*   2 */
-	*reg++ = IXGB_READ_REG(hw, EECD);	/*   3 */
-	*reg++ = IXGB_READ_REG(hw, MFS);	/*   4 */
-
-	/* Interrupt */
-	*reg++ = IXGB_READ_REG(hw, ICR);	/*   5 */
-	*reg++ = IXGB_READ_REG(hw, ICS);	/*   6 */
-	*reg++ = IXGB_READ_REG(hw, IMS);	/*   7 */
-	*reg++ = IXGB_READ_REG(hw, IMC);	/*   8 */
-
-	/* Receive */
-	*reg++ = IXGB_READ_REG(hw, RCTL);	/*   9 */
-	*reg++ = IXGB_READ_REG(hw, FCRTL);	/*  10 */
-	*reg++ = IXGB_READ_REG(hw, FCRTH);	/*  11 */
-	*reg++ = IXGB_READ_REG(hw, RDBAL);	/*  12 */
-	*reg++ = IXGB_READ_REG(hw, RDBAH);	/*  13 */
-	*reg++ = IXGB_READ_REG(hw, RDLEN);	/*  14 */
-	*reg++ = IXGB_READ_REG(hw, RDH);	/*  15 */
-	*reg++ = IXGB_READ_REG(hw, RDT);	/*  16 */
-	*reg++ = IXGB_READ_REG(hw, RDTR);	/*  17 */
-	*reg++ = IXGB_READ_REG(hw, RXDCTL);	/*  18 */
-	*reg++ = IXGB_READ_REG(hw, RAIDC);	/*  19 */
-	*reg++ = IXGB_READ_REG(hw, RXCSUM);	/*  20 */
-
-	/* there are 16 RAR entries in hardware, we only use 3 */
-	for (i = 0; i < IXGB_ALL_RAR_ENTRIES; i++) {
-		*reg++ = IXGB_READ_REG_ARRAY(hw, RAL, (i << 1)); /*21,...,51 */
-		*reg++ = IXGB_READ_REG_ARRAY(hw, RAH, (i << 1)); /*22,...,52 */
-	}
-
-	/* Transmit */
-	*reg++ = IXGB_READ_REG(hw, TCTL);	/*  53 */
-	*reg++ = IXGB_READ_REG(hw, TDBAL);	/*  54 */
-	*reg++ = IXGB_READ_REG(hw, TDBAH);	/*  55 */
-	*reg++ = IXGB_READ_REG(hw, TDLEN);	/*  56 */
-	*reg++ = IXGB_READ_REG(hw, TDH);	/*  57 */
-	*reg++ = IXGB_READ_REG(hw, TDT);	/*  58 */
-	*reg++ = IXGB_READ_REG(hw, TIDV);	/*  59 */
-	*reg++ = IXGB_READ_REG(hw, TXDCTL);	/*  60 */
-	*reg++ = IXGB_READ_REG(hw, TSPMT);	/*  61 */
-	*reg++ = IXGB_READ_REG(hw, PAP);	/*  62 */
-
-	/* Physical */
-	*reg++ = IXGB_READ_REG(hw, PCSC1);	/*  63 */
-	*reg++ = IXGB_READ_REG(hw, PCSC2);	/*  64 */
-	*reg++ = IXGB_READ_REG(hw, PCSS1);	/*  65 */
-	*reg++ = IXGB_READ_REG(hw, PCSS2);	/*  66 */
-	*reg++ = IXGB_READ_REG(hw, XPCSS);	/*  67 */
-	*reg++ = IXGB_READ_REG(hw, UCCR);	/*  68 */
-	*reg++ = IXGB_READ_REG(hw, XPCSTC);	/*  69 */
-	*reg++ = IXGB_READ_REG(hw, MACA);	/*  70 */
-	*reg++ = IXGB_READ_REG(hw, APAE);	/*  71 */
-	*reg++ = IXGB_READ_REG(hw, ARD);	/*  72 */
-	*reg++ = IXGB_READ_REG(hw, AIS);	/*  73 */
-	*reg++ = IXGB_READ_REG(hw, MSCA);	/*  74 */
-	*reg++ = IXGB_READ_REG(hw, MSRWD);	/*  75 */
-
-	/* Statistics */
-	*reg++ = IXGB_GET_STAT(adapter, tprl);	/*  76 */
-	*reg++ = IXGB_GET_STAT(adapter, tprh);	/*  77 */
-	*reg++ = IXGB_GET_STAT(adapter, gprcl);	/*  78 */
-	*reg++ = IXGB_GET_STAT(adapter, gprch);	/*  79 */
-	*reg++ = IXGB_GET_STAT(adapter, bprcl);	/*  80 */
-	*reg++ = IXGB_GET_STAT(adapter, bprch);	/*  81 */
-	*reg++ = IXGB_GET_STAT(adapter, mprcl);	/*  82 */
-	*reg++ = IXGB_GET_STAT(adapter, mprch);	/*  83 */
-	*reg++ = IXGB_GET_STAT(adapter, uprcl);	/*  84 */
-	*reg++ = IXGB_GET_STAT(adapter, uprch);	/*  85 */
-	*reg++ = IXGB_GET_STAT(adapter, vprcl);	/*  86 */
-	*reg++ = IXGB_GET_STAT(adapter, vprch);	/*  87 */
-	*reg++ = IXGB_GET_STAT(adapter, jprcl);	/*  88 */
-	*reg++ = IXGB_GET_STAT(adapter, jprch);	/*  89 */
-	*reg++ = IXGB_GET_STAT(adapter, gorcl);	/*  90 */
-	*reg++ = IXGB_GET_STAT(adapter, gorch);	/*  91 */
-	*reg++ = IXGB_GET_STAT(adapter, torl);	/*  92 */
-	*reg++ = IXGB_GET_STAT(adapter, torh);	/*  93 */
-	*reg++ = IXGB_GET_STAT(adapter, rnbc);	/*  94 */
-	*reg++ = IXGB_GET_STAT(adapter, ruc);	/*  95 */
-	*reg++ = IXGB_GET_STAT(adapter, roc);	/*  96 */
-	*reg++ = IXGB_GET_STAT(adapter, rlec);	/*  97 */
-	*reg++ = IXGB_GET_STAT(adapter, crcerrs);	/*  98 */
-	*reg++ = IXGB_GET_STAT(adapter, icbc);	/*  99 */
-	*reg++ = IXGB_GET_STAT(adapter, ecbc);	/* 100 */
-	*reg++ = IXGB_GET_STAT(adapter, mpc);	/* 101 */
-	*reg++ = IXGB_GET_STAT(adapter, tptl);	/* 102 */
-	*reg++ = IXGB_GET_STAT(adapter, tpth);	/* 103 */
-	*reg++ = IXGB_GET_STAT(adapter, gptcl);	/* 104 */
-	*reg++ = IXGB_GET_STAT(adapter, gptch);	/* 105 */
-	*reg++ = IXGB_GET_STAT(adapter, bptcl);	/* 106 */
-	*reg++ = IXGB_GET_STAT(adapter, bptch);	/* 107 */
-	*reg++ = IXGB_GET_STAT(adapter, mptcl);	/* 108 */
-	*reg++ = IXGB_GET_STAT(adapter, mptch);	/* 109 */
-	*reg++ = IXGB_GET_STAT(adapter, uptcl);	/* 110 */
-	*reg++ = IXGB_GET_STAT(adapter, uptch);	/* 111 */
-	*reg++ = IXGB_GET_STAT(adapter, vptcl);	/* 112 */
-	*reg++ = IXGB_GET_STAT(adapter, vptch);	/* 113 */
-	*reg++ = IXGB_GET_STAT(adapter, jptcl);	/* 114 */
-	*reg++ = IXGB_GET_STAT(adapter, jptch);	/* 115 */
-	*reg++ = IXGB_GET_STAT(adapter, gotcl);	/* 116 */
-	*reg++ = IXGB_GET_STAT(adapter, gotch);	/* 117 */
-	*reg++ = IXGB_GET_STAT(adapter, totl);	/* 118 */
-	*reg++ = IXGB_GET_STAT(adapter, toth);	/* 119 */
-	*reg++ = IXGB_GET_STAT(adapter, dc);	/* 120 */
-	*reg++ = IXGB_GET_STAT(adapter, plt64c);	/* 121 */
-	*reg++ = IXGB_GET_STAT(adapter, tsctc);	/* 122 */
-	*reg++ = IXGB_GET_STAT(adapter, tsctfc);	/* 123 */
-	*reg++ = IXGB_GET_STAT(adapter, ibic);	/* 124 */
-	*reg++ = IXGB_GET_STAT(adapter, rfc);	/* 125 */
-	*reg++ = IXGB_GET_STAT(adapter, lfc);	/* 126 */
-	*reg++ = IXGB_GET_STAT(adapter, pfrc);	/* 127 */
-	*reg++ = IXGB_GET_STAT(adapter, pftc);	/* 128 */
-	*reg++ = IXGB_GET_STAT(adapter, mcfrc);	/* 129 */
-	*reg++ = IXGB_GET_STAT(adapter, mcftc);	/* 130 */
-	*reg++ = IXGB_GET_STAT(adapter, xonrxc);	/* 131 */
-	*reg++ = IXGB_GET_STAT(adapter, xontxc);	/* 132 */
-	*reg++ = IXGB_GET_STAT(adapter, xoffrxc);	/* 133 */
-	*reg++ = IXGB_GET_STAT(adapter, xofftxc);	/* 134 */
-	*reg++ = IXGB_GET_STAT(adapter, rjc);	/* 135 */
-
-	regs->len = (reg - reg_start) * sizeof(u32);
-}
-
-static int
-ixgb_get_eeprom_len(struct net_device *netdev)
-{
-	/* return size in bytes */
-	return IXGB_EEPROM_SIZE << 1;
-}
-
-static int
-ixgb_get_eeprom(struct net_device *netdev,
-		  struct ethtool_eeprom *eeprom, u8 *bytes)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	struct ixgb_hw *hw = &adapter->hw;
-	__le16 *eeprom_buff;
-	int i, max_len, first_word, last_word;
-	int ret_val = 0;
-
-	if (eeprom->len == 0) {
-		ret_val = -EINVAL;
-		goto geeprom_error;
-	}
-
-	eeprom->magic = hw->vendor_id | (hw->device_id << 16);
-
-	max_len = ixgb_get_eeprom_len(netdev);
-
-	if (eeprom->offset > eeprom->offset + eeprom->len) {
-		ret_val = -EINVAL;
-		goto geeprom_error;
-	}
-
-	if ((eeprom->offset + eeprom->len) > max_len)
-		eeprom->len = (max_len - eeprom->offset);
-
-	first_word = eeprom->offset >> 1;
-	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
-
-	eeprom_buff = kmalloc_array(last_word - first_word + 1,
-				    sizeof(__le16),
-				    GFP_KERNEL);
-	if (!eeprom_buff)
-		return -ENOMEM;
-
-	/* note the eeprom was good because the driver loaded */
-	for (i = 0; i <= (last_word - first_word); i++)
-		eeprom_buff[i] = ixgb_get_eeprom_word(hw, (first_word + i));
-
-	memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
-	kfree(eeprom_buff);
-
-geeprom_error:
-	return ret_val;
-}
-
-static int
-ixgb_set_eeprom(struct net_device *netdev,
-		  struct ethtool_eeprom *eeprom, u8 *bytes)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	struct ixgb_hw *hw = &adapter->hw;
-	u16 *eeprom_buff;
-	void *ptr;
-	int max_len, first_word, last_word;
-	u16 i;
-
-	if (eeprom->len == 0)
-		return -EINVAL;
-
-	if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
-		return -EFAULT;
-
-	max_len = ixgb_get_eeprom_len(netdev);
-
-	if (eeprom->offset > eeprom->offset + eeprom->len)
-		return -EINVAL;
-
-	if ((eeprom->offset + eeprom->len) > max_len)
-		eeprom->len = (max_len - eeprom->offset);
-
-	first_word = eeprom->offset >> 1;
-	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
-	eeprom_buff = kmalloc(max_len, GFP_KERNEL);
-	if (!eeprom_buff)
-		return -ENOMEM;
-
-	ptr = (void *)eeprom_buff;
-
-	if (eeprom->offset & 1) {
-		/* need read/modify/write of first changed EEPROM word */
-		/* only the second byte of the word is being modified */
-		eeprom_buff[0] = ixgb_read_eeprom(hw, first_word);
-		ptr++;
-	}
-	if ((eeprom->offset + eeprom->len) & 1) {
-		/* need read/modify/write of last changed EEPROM word */
-		/* only the first byte of the word is being modified */
-		eeprom_buff[last_word - first_word]
-			= ixgb_read_eeprom(hw, last_word);
-	}
-
-	memcpy(ptr, bytes, eeprom->len);
-	for (i = 0; i <= (last_word - first_word); i++)
-		ixgb_write_eeprom(hw, first_word + i, eeprom_buff[i]);
-
-	/* Update the checksum over the first part of the EEPROM if needed */
-	if (first_word <= EEPROM_CHECKSUM_REG)
-		ixgb_update_eeprom_checksum(hw);
-
-	kfree(eeprom_buff);
-	return 0;
-}
-
-static void
-ixgb_get_drvinfo(struct net_device *netdev,
-		   struct ethtool_drvinfo *drvinfo)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-
-	strscpy(drvinfo->driver,  ixgb_driver_name,
-		sizeof(drvinfo->driver));
-	strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
-		sizeof(drvinfo->bus_info));
-}
-
-static void
-ixgb_get_ringparam(struct net_device *netdev,
-		   struct ethtool_ringparam *ring,
-		   struct kernel_ethtool_ringparam *kernel_ring,
-		   struct netlink_ext_ack *extack)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	struct ixgb_desc_ring *txdr = &adapter->tx_ring;
-	struct ixgb_desc_ring *rxdr = &adapter->rx_ring;
-
-	ring->rx_max_pending = MAX_RXD;
-	ring->tx_max_pending = MAX_TXD;
-	ring->rx_pending = rxdr->count;
-	ring->tx_pending = txdr->count;
-}
-
-static int
-ixgb_set_ringparam(struct net_device *netdev,
-		   struct ethtool_ringparam *ring,
-		   struct kernel_ethtool_ringparam *kernel_ring,
-		   struct netlink_ext_ack *extack)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	struct ixgb_desc_ring *txdr = &adapter->tx_ring;
-	struct ixgb_desc_ring *rxdr = &adapter->rx_ring;
-	struct ixgb_desc_ring tx_old, tx_new, rx_old, rx_new;
-	int err;
-
-	tx_old = adapter->tx_ring;
-	rx_old = adapter->rx_ring;
-
-	if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
-		return -EINVAL;
-
-	if (netif_running(adapter->netdev))
-		ixgb_down(adapter, true);
-
-	rxdr->count = max(ring->rx_pending,(u32)MIN_RXD);
-	rxdr->count = min(rxdr->count,(u32)MAX_RXD);
-	rxdr->count = ALIGN(rxdr->count, IXGB_REQ_RX_DESCRIPTOR_MULTIPLE);
-
-	txdr->count = max(ring->tx_pending,(u32)MIN_TXD);
-	txdr->count = min(txdr->count,(u32)MAX_TXD);
-	txdr->count = ALIGN(txdr->count, IXGB_REQ_TX_DESCRIPTOR_MULTIPLE);
-
-	if (netif_running(adapter->netdev)) {
-		/* Try to get new resources before deleting old */
-		if ((err = ixgb_setup_rx_resources(adapter)))
-			goto err_setup_rx;
-		if ((err = ixgb_setup_tx_resources(adapter)))
-			goto err_setup_tx;
-
-		/* save the new, restore the old in order to free it,
-		 * then restore the new back again */
-
-		rx_new = adapter->rx_ring;
-		tx_new = adapter->tx_ring;
-		adapter->rx_ring = rx_old;
-		adapter->tx_ring = tx_old;
-		ixgb_free_rx_resources(adapter);
-		ixgb_free_tx_resources(adapter);
-		adapter->rx_ring = rx_new;
-		adapter->tx_ring = tx_new;
-		if ((err = ixgb_up(adapter)))
-			return err;
-		ixgb_set_speed_duplex(netdev);
-	}
-
-	return 0;
-err_setup_tx:
-	ixgb_free_rx_resources(adapter);
-err_setup_rx:
-	adapter->rx_ring = rx_old;
-	adapter->tx_ring = tx_old;
-	ixgb_up(adapter);
-	return err;
-}
-
-static int
-ixgb_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-
-	switch (state) {
-	case ETHTOOL_ID_ACTIVE:
-		return 2;
-
-	case ETHTOOL_ID_ON:
-		ixgb_led_on(&adapter->hw);
-		break;
-
-	case ETHTOOL_ID_OFF:
-	case ETHTOOL_ID_INACTIVE:
-		ixgb_led_off(&adapter->hw);
-	}
-
-	return 0;
-}
-
-static int
-ixgb_get_sset_count(struct net_device *netdev, int sset)
-{
-	switch (sset) {
-	case ETH_SS_STATS:
-		return IXGB_STATS_LEN;
-	default:
-		return -EOPNOTSUPP;
-	}
-}
-
-static void
-ixgb_get_ethtool_stats(struct net_device *netdev,
-		struct ethtool_stats *stats, u64 *data)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	int i;
-	char *p = NULL;
-
-	ixgb_update_stats(adapter);
-	for (i = 0; i < IXGB_STATS_LEN; i++) {
-		switch (ixgb_gstrings_stats[i].type) {
-		case NETDEV_STATS:
-			p = (char *) netdev +
-					ixgb_gstrings_stats[i].stat_offset;
-			break;
-		case IXGB_STATS:
-			p = (char *) adapter +
-					ixgb_gstrings_stats[i].stat_offset;
-			break;
-		}
-
-		data[i] = (ixgb_gstrings_stats[i].sizeof_stat ==
-			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
-	}
-}
-
-static void
-ixgb_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
-{
-	int i;
-
-	switch(stringset) {
-	case ETH_SS_STATS:
-		for (i = 0; i < IXGB_STATS_LEN; i++) {
-			memcpy(data + i * ETH_GSTRING_LEN,
-			ixgb_gstrings_stats[i].stat_string,
-			ETH_GSTRING_LEN);
-		}
-		break;
-	}
-}
-
-static const struct ethtool_ops ixgb_ethtool_ops = {
-	.get_drvinfo = ixgb_get_drvinfo,
-	.get_regs_len = ixgb_get_regs_len,
-	.get_regs = ixgb_get_regs,
-	.get_link = ethtool_op_get_link,
-	.get_eeprom_len = ixgb_get_eeprom_len,
-	.get_eeprom = ixgb_get_eeprom,
-	.set_eeprom = ixgb_set_eeprom,
-	.get_ringparam = ixgb_get_ringparam,
-	.set_ringparam = ixgb_set_ringparam,
-	.get_pauseparam	= ixgb_get_pauseparam,
-	.set_pauseparam	= ixgb_set_pauseparam,
-	.get_msglevel = ixgb_get_msglevel,
-	.set_msglevel = ixgb_set_msglevel,
-	.get_strings = ixgb_get_strings,
-	.set_phys_id = ixgb_set_phys_id,
-	.get_sset_count = ixgb_get_sset_count,
-	.get_ethtool_stats = ixgb_get_ethtool_stats,
-	.get_link_ksettings = ixgb_get_link_ksettings,
-	.set_link_ksettings = ixgb_set_link_ksettings,
-};
-
-void ixgb_set_ethtool_ops(struct net_device *netdev)
-{
-	netdev->ethtool_ops = &ixgb_ethtool_ops;
-}

drivers/net/ethernet/intel/ixgb/ixgb_hw.c

-// SPDX-License-Identifier: GPL-2.0
-/* Copyright(c) 1999 - 2008 Intel Corporation. */
-
-/* ixgb_hw.c
- * Shared functions for accessing and configuring the adapter
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/pci_ids.h>
-#include "ixgb_hw.h"
-#include "ixgb_ids.h"
-
-#include <linux/etherdevice.h>
-
-/*  Local function prototypes */
-
-static u32 ixgb_hash_mc_addr(struct ixgb_hw *hw, u8 * mc_addr);
-
-static void ixgb_mta_set(struct ixgb_hw *hw, u32 hash_value);
-
-static void ixgb_get_bus_info(struct ixgb_hw *hw);
-
-static bool ixgb_link_reset(struct ixgb_hw *hw);
-
-static void ixgb_optics_reset(struct ixgb_hw *hw);
-
-static void ixgb_optics_reset_bcm(struct ixgb_hw *hw);
-
-static ixgb_phy_type ixgb_identify_phy(struct ixgb_hw *hw);
-
-static void ixgb_clear_hw_cntrs(struct ixgb_hw *hw);
-
-static void ixgb_clear_vfta(struct ixgb_hw *hw);
-
-static void ixgb_init_rx_addrs(struct ixgb_hw *hw);
-
-static u16 ixgb_read_phy_reg(struct ixgb_hw *hw,
-				  u32 reg_address,
-				  u32 phy_address,
-				  u32 device_type);
-
-static bool ixgb_setup_fc(struct ixgb_hw *hw);
-
-static bool mac_addr_valid(u8 *mac_addr);
-
-static u32 ixgb_mac_reset(struct ixgb_hw *hw)
-{
-	u32 ctrl_reg;
-
-	ctrl_reg =  IXGB_CTRL0_RST |
-				IXGB_CTRL0_SDP3_DIR |   /* All pins are Output=1 */
-				IXGB_CTRL0_SDP2_DIR |
-				IXGB_CTRL0_SDP1_DIR |
-				IXGB_CTRL0_SDP0_DIR |
-				IXGB_CTRL0_SDP3	 |   /* Initial value 1101   */
-				IXGB_CTRL0_SDP2	 |
-				IXGB_CTRL0_SDP0;
-
-#ifdef HP_ZX1
-	/* Workaround for 82597EX reset errata */
-	IXGB_WRITE_REG_IO(hw, CTRL0, ctrl_reg);
-#else
-	IXGB_WRITE_REG(hw, CTRL0, ctrl_reg);
-#endif
-
-	/* Delay a few ms just to allow the reset to complete */
-	msleep(IXGB_DELAY_AFTER_RESET);
-	ctrl_reg = IXGB_READ_REG(hw, CTRL0);
-#ifdef DBG
-	/* Make sure the self-clearing global reset bit did self clear */
-	ASSERT(!(ctrl_reg & IXGB_CTRL0_RST));
-#endif
-
-	if (hw->subsystem_vendor_id == PCI_VENDOR_ID_SUN) {
-		ctrl_reg =  /* Enable interrupt from XFP and SerDes */
-			   IXGB_CTRL1_GPI0_EN |
-			   IXGB_CTRL1_SDP6_DIR |
-			   IXGB_CTRL1_SDP7_DIR |
-			   IXGB_CTRL1_SDP6 |
-			   IXGB_CTRL1_SDP7;
-		IXGB_WRITE_REG(hw, CTRL1, ctrl_reg);
-		ixgb_optics_reset_bcm(hw);
-	}
-
-	if (hw->phy_type == ixgb_phy_type_txn17401)
-		ixgb_optics_reset(hw);
-
-	return ctrl_reg;
-}
-
-/******************************************************************************
- * Reset the transmit and receive units; mask and clear all interrupts.
- *
- * hw - Struct containing variables accessed by shared code
- *****************************************************************************/
-bool
-ixgb_adapter_stop(struct ixgb_hw *hw)
-{
-	u32 ctrl_reg;
-
-	ENTER();
-
-	/* If we are stopped or resetting exit gracefully and wait to be
-	 * started again before accessing the hardware.
-	 */
-	if (hw->adapter_stopped) {
-		pr_debug("Exiting because the adapter is already stopped!!!\n");
-		return false;
-	}
-
-	/* Set the Adapter Stopped flag so other driver functions stop
-	 * touching the Hardware.
-	 */
-	hw->adapter_stopped = true;
-
-	/* Clear interrupt mask to stop board from generating interrupts */
-	pr_debug("Masking off all interrupts\n");
-	IXGB_WRITE_REG(hw, IMC, 0xFFFFFFFF);
-
-	/* Disable the Transmit and Receive units.  Then delay to allow
-	 * any pending transactions to complete before we hit the MAC with
-	 * the global reset.
-	 */
-	IXGB_WRITE_REG(hw, RCTL, IXGB_READ_REG(hw, RCTL) & ~IXGB_RCTL_RXEN);
-	IXGB_WRITE_REG(hw, TCTL, IXGB_READ_REG(hw, TCTL) & ~IXGB_TCTL_TXEN);
-	IXGB_WRITE_FLUSH(hw);
-	msleep(IXGB_DELAY_BEFORE_RESET);
-
-	/* Issue a global reset to the MAC.  This will reset the chip's
-	 * transmit, receive, DMA, and link units.  It will not effect
-	 * the current PCI configuration.  The global reset bit is self-
-	 * clearing, and should clear within a microsecond.
-	 */
-	pr_debug("Issuing a global reset to MAC\n");
-
-	ctrl_reg = ixgb_mac_reset(hw);
-
-	/* Clear interrupt mask to stop board from generating interrupts */
-	pr_debug("Masking off all interrupts\n");
-	IXGB_WRITE_REG(hw, IMC, 0xffffffff);
-
-	/* Clear any pending interrupt events. */
-	IXGB_READ_REG(hw, ICR);
-
-	return ctrl_reg & IXGB_CTRL0_RST;
-}
-
-
-/******************************************************************************
- * Identifies the vendor of the optics module on the adapter.  The SR adapters
- * support two different types of XPAK optics, so it is necessary to determine
- * which optics are present before applying any optics-specific workarounds.
- *
- * hw - Struct containing variables accessed by shared code.
- *
- * Returns: the vendor of the XPAK optics module.
- *****************************************************************************/
-static ixgb_xpak_vendor
-ixgb_identify_xpak_vendor(struct ixgb_hw *hw)
-{
-	u32 i;
-	u16 vendor_name[5];
-	ixgb_xpak_vendor xpak_vendor;
-
-	ENTER();
-
-	/* Read the first few bytes of the vendor string from the XPAK NVR
-	 * registers.  These are standard XENPAK/XPAK registers, so all XPAK
-	 * devices should implement them. */
-	for (i = 0; i < 5; i++) {
-		vendor_name[i] = ixgb_read_phy_reg(hw,
-						   MDIO_PMA_PMD_XPAK_VENDOR_NAME
-						   + i, IXGB_PHY_ADDRESS,
-						   MDIO_MMD_PMAPMD);
-	}
-
-	/* Determine the actual vendor */
-	if (vendor_name[0] == 'I' &&
-	    vendor_name[1] == 'N' &&
-	    vendor_name[2] == 'T' &&
-	    vendor_name[3] == 'E' && vendor_name[4] == 'L') {
-		xpak_vendor = ixgb_xpak_vendor_intel;
-	} else {
-		xpak_vendor = ixgb_xpak_vendor_infineon;
-	}
-
-	return xpak_vendor;
-}
-
-/******************************************************************************
- * Determine the physical layer module on the adapter.
- *
- * hw - Struct containing variables accessed by shared code.  The device_id
- *      field must be (correctly) populated before calling this routine.
- *
- * Returns: the phy type of the adapter.
- *****************************************************************************/
-static ixgb_phy_type
-ixgb_identify_phy(struct ixgb_hw *hw)
-{
-	ixgb_phy_type phy_type;
-	ixgb_xpak_vendor xpak_vendor;
-
-	ENTER();
-
-	/* Infer the transceiver/phy type from the device id */
-	switch (hw->device_id) {
-	case IXGB_DEVICE_ID_82597EX:
-		pr_debug("Identified TXN17401 optics\n");
-		phy_type = ixgb_phy_type_txn17401;
-		break;
-
-	case IXGB_DEVICE_ID_82597EX_SR:
-		/* The SR adapters carry two different types of XPAK optics
-		 * modules; read the vendor identifier to determine the exact
-		 * type of optics. */
-		xpak_vendor = ixgb_identify_xpak_vendor(hw);
-		if (xpak_vendor == ixgb_xpak_vendor_intel) {
-			pr_debug("Identified TXN17201 optics\n");
-			phy_type = ixgb_phy_type_txn17201;
-		} else {
-			pr_debug("Identified G6005 optics\n");
-			phy_type = ixgb_phy_type_g6005;
-		}
-		break;
-	case IXGB_DEVICE_ID_82597EX_LR:
-		pr_debug("Identified G6104 optics\n");
-		phy_type = ixgb_phy_type_g6104;
-		break;
-	case IXGB_DEVICE_ID_82597EX_CX4:
-		pr_debug("Identified CX4\n");
-		xpak_vendor = ixgb_identify_xpak_vendor(hw);
-		if (xpak_vendor == ixgb_xpak_vendor_intel) {
-			pr_debug("Identified TXN17201 optics\n");
-			phy_type = ixgb_phy_type_txn17201;
-		} else {
-			pr_debug("Identified G6005 optics\n");
-			phy_type = ixgb_phy_type_g6005;
-		}
-		break;
-	default:
-		pr_debug("Unknown physical layer module\n");
-		phy_type = ixgb_phy_type_unknown;
-		break;
-	}
-
-	/* update phy type for sun specific board */
-	if (hw->subsystem_vendor_id == PCI_VENDOR_ID_SUN)
-		phy_type = ixgb_phy_type_bcm;
-
-	return phy_type;
-}
-
-/******************************************************************************
- * Performs basic configuration of the adapter.
- *
- * hw - Struct containing variables accessed by shared code
- *
- * Resets the controller.
- * Reads and validates the EEPROM.
- * Initializes the receive address registers.
- * Initializes the multicast table.
- * Clears all on-chip counters.
- * Calls routine to setup flow control settings.
- * Leaves the transmit and receive units disabled and uninitialized.
- *
- * Returns:
- *      true if successful,
- *      false if unrecoverable problems were encountered.
- *****************************************************************************/
-bool
-ixgb_init_hw(struct ixgb_hw *hw)
-{
-	u32 i;
-	bool status;
-
-	ENTER();
-
-	/* Issue a global reset to the MAC.  This will reset the chip's
-	 * transmit, receive, DMA, and link units.  It will not effect
-	 * the current PCI configuration.  The global reset bit is self-
-	 * clearing, and should clear within a microsecond.
-	 */
-	pr_debug("Issuing a global reset to MAC\n");
-
-	ixgb_mac_reset(hw);
-
-	pr_debug("Issuing an EE reset to MAC\n");
-#ifdef HP_ZX1
-	/* Workaround for 82597EX reset errata */
-	IXGB_WRITE_REG_IO(hw, CTRL1, IXGB_CTRL1_EE_RST);
-#else
-	IXGB_WRITE_REG(hw, CTRL1, IXGB_CTRL1_EE_RST);
-#endif
-
-	/* Delay a few ms just to allow the reset to complete */
-	msleep(IXGB_DELAY_AFTER_EE_RESET);
-
-	if (!ixgb_get_eeprom_data(hw))
-		return false;
-
-	/* Use the device id to determine the type of phy/transceiver. */
-	hw->device_id = ixgb_get_ee_device_id(hw);
-	hw->phy_type = ixgb_identify_phy(hw);
-
-	/* Setup the receive addresses.
-	 * Receive Address Registers (RARs 0 - 15).
-	 */
-	ixgb_init_rx_addrs(hw);
-
-	/*
-	 * Check that a valid MAC address has been set.
-	 * If it is not valid, we fail hardware init.
-	 */
-	if (!mac_addr_valid(hw->curr_mac_addr)) {
-		pr_debug("MAC address invalid after ixgb_init_rx_addrs\n");
-		return(false);
-	}
-
-	/* tell the routines in this file they can access hardware again */
-	hw->adapter_stopped = false;
-
-	/* Fill in the bus_info structure */
-	ixgb_get_bus_info(hw);
-
-	/* Zero out the Multicast HASH table */
-	pr_debug("Zeroing the MTA\n");
-	for (i = 0; i < IXGB_MC_TBL_SIZE; i++)
-		IXGB_WRITE_REG_ARRAY(hw, MTA, i, 0);
-
-	/* Zero out the VLAN Filter Table Array */
-	ixgb_clear_vfta(hw);
-
-	/* Zero all of the hardware counters */
-	ixgb_clear_hw_cntrs(hw);
-
-	/* Call a subroutine to setup flow control. */
-	status = ixgb_setup_fc(hw);
-
-	/* 82597EX errata: Call check-for-link in case lane deskew is locked */
-	ixgb_check_for_link(hw);
-
-	return status;
-}
-
-/******************************************************************************
- * Initializes receive address filters.
- *
- * hw - Struct containing variables accessed by shared code
- *
- * Places the MAC address in receive address register 0 and clears the rest
- * of the receive address registers. Clears the multicast table. Assumes
- * the receiver is in reset when the routine is called.
- *****************************************************************************/
-static void
-ixgb_init_rx_addrs(struct ixgb_hw *hw)
-{
-	u32 i;
-
-	ENTER();
-
-	/*
-	 * If the current mac address is valid, assume it is a software override
-	 * to the permanent address.
-	 * Otherwise, use the permanent address from the eeprom.
-	 */
-	if (!mac_addr_valid(hw->curr_mac_addr)) {
-
-		/* Get the MAC address from the eeprom for later reference */
-		ixgb_get_ee_mac_addr(hw, hw->curr_mac_addr);
-
-		pr_debug("Keeping Permanent MAC Addr = %pM\n",
-			 hw->curr_mac_addr);
-	} else {
-
-		/* Setup the receive address. */
-		pr_debug("Overriding MAC Address in RAR[0]\n");
-		pr_debug("New MAC Addr = %pM\n", hw->curr_mac_addr);
-
-		ixgb_rar_set(hw, hw->curr_mac_addr, 0);
-	}
-
-	/* Zero out the other 15 receive addresses. */
-	pr_debug("Clearing RAR[1-15]\n");
-	for (i = 1; i < IXGB_RAR_ENTRIES; i++) {
-		/* Write high reg first to disable the AV bit first */
-		IXGB_WRITE_REG_ARRAY(hw, RA, ((i << 1) + 1), 0);
-		IXGB_WRITE_REG_ARRAY(hw, RA, (i << 1), 0);
-	}
-}
-
-/******************************************************************************
- * Updates the MAC's list of multicast addresses.
- *
- * hw - Struct containing variables accessed by shared code
- * mc_addr_list - the list of new multicast addresses
- * mc_addr_count - number of addresses
- * pad - number of bytes between addresses in the list
- *
- * The given list replaces any existing list. Clears the last 15 receive
- * address registers and the multicast table. Uses receive address registers
- * for the first 15 multicast addresses, and hashes the rest into the
- * multicast table.
- *****************************************************************************/
-void
-ixgb_mc_addr_list_update(struct ixgb_hw *hw,
-			  u8 *mc_addr_list,
-			  u32 mc_addr_count,
-			  u32 pad)
-{
-	u32 hash_value;
-	u32 i;
-	u32 rar_used_count = 1;		/* RAR[0] is used for our MAC address */
-	u8 *mca;
-
-	ENTER();
-
-	/* Set the new number of MC addresses that we are being requested to use. */
-	hw->num_mc_addrs = mc_addr_count;
-
-	/* Clear RAR[1-15] */
-	pr_debug("Clearing RAR[1-15]\n");
-	for (i = rar_used_count; i < IXGB_RAR_ENTRIES; i++) {
-		IXGB_WRITE_REG_ARRAY(hw, RA, (i << 1), 0);
-		IXGB_WRITE_REG_ARRAY(hw, RA, ((i << 1) + 1), 0);
-	}
-
-	/* Clear the MTA */
-	pr_debug("Clearing MTA\n");
-	for (i = 0; i < IXGB_MC_TBL_SIZE; i++)
-		IXGB_WRITE_REG_ARRAY(hw, MTA, i, 0);
-
-	/* Add the new addresses */
-	mca = mc_addr_list;
-	for (i = 0; i < mc_addr_count; i++) {
-		pr_debug("Adding the multicast addresses:\n");
-		pr_debug("MC Addr #%d = %pM\n", i, mca);
-
-		/* Place this multicast address in the RAR if there is room, *
-		 * else put it in the MTA
-		 */
-		if (rar_used_count < IXGB_RAR_ENTRIES) {
-			ixgb_rar_set(hw, mca, rar_used_count);
-			pr_debug("Added a multicast address to RAR[%d]\n", i);
-			rar_used_count++;
-		} else {
-			hash_value = ixgb_hash_mc_addr(hw, mca);
-
-			pr_debug("Hash value = 0x%03X\n", hash_value);
-
-			ixgb_mta_set(hw, hash_value);
-		}
-
-		mca += ETH_ALEN + pad;
-	}
-
-	pr_debug("MC Update Complete\n");
-}
-
-/******************************************************************************
- * Hashes an address to determine its location in the multicast table
- *
- * hw - Struct containing variables accessed by shared code
- * mc_addr - the multicast address to hash
- *
- * Returns:
- *      The hash value
- *****************************************************************************/
-static u32
-ixgb_hash_mc_addr(struct ixgb_hw *hw,
-		   u8 *mc_addr)
-{
-	u32 hash_value = 0;
-
-	ENTER();
-
-	/* The portion of the address that is used for the hash table is
-	 * determined by the mc_filter_type setting.
-	 */
-	switch (hw->mc_filter_type) {
-		/* [0] [1] [2] [3] [4] [5]
-		 * 01  AA  00  12  34  56
-		 * LSB                 MSB - According to H/W docs */
-	case 0:
-		/* [47:36] i.e. 0x563 for above example address */
-		hash_value =
-		    ((mc_addr[4] >> 4) | (((u16) mc_addr[5]) << 4));
-		break;
-	case 1:		/* [46:35] i.e. 0xAC6 for above example address */
-		hash_value =
-		    ((mc_addr[4] >> 3) | (((u16) mc_addr[5]) << 5));
-		break;
-	case 2:		/* [45:34] i.e. 0x5D8 for above example address */
-		hash_value =
-		    ((mc_addr[4] >> 2) | (((u16) mc_addr[5]) << 6));
-		break;
-	case 3:		/* [43:32] i.e. 0x634 for above example address */
-		hash_value = ((mc_addr[4]) | (((u16) mc_addr[5]) << 8));
-		break;
-	default:
-		/* Invalid mc_filter_type, what should we do? */
-		pr_debug("MC filter type param set incorrectly\n");
-		ASSERT(0);
-		break;
-	}
-
-	hash_value &= 0xFFF;
-	return hash_value;
-}
-
-/******************************************************************************
- * Sets the bit in the multicast table corresponding to the hash value.
- *
- * hw - Struct containing variables accessed by shared code
- * hash_value - Multicast address hash value
- *****************************************************************************/
-static void
-ixgb_mta_set(struct ixgb_hw *hw,
-		  u32 hash_value)
-{
-	u32 hash_bit, hash_reg;
-	u32 mta_reg;
-
-	/* The MTA is a register array of 128 32-bit registers.
-	 * It is treated like an array of 4096 bits.  We want to set
-	 * bit BitArray[hash_value]. So we figure out what register
-	 * the bit is in, read it, OR in the new bit, then write
-	 * back the new value.  The register is determined by the
-	 * upper 7 bits of the hash value and the bit within that
-	 * register are determined by the lower 5 bits of the value.
-	 */
-	hash_reg = (hash_value >> 5) & 0x7F;
-	hash_bit = hash_value & 0x1F;
-
-	mta_reg = IXGB_READ_REG_ARRAY(hw, MTA, hash_reg);
-
-	mta_reg |= (1 << hash_bit);
-
-	IXGB_WRITE_REG_ARRAY(hw, MTA, hash_reg, mta_reg);
-}
-
-/******************************************************************************
- * Puts an ethernet address into a receive address register.
- *
- * hw - Struct containing variables accessed by shared code
- * addr - Address to put into receive address register
- * index - Receive address register to write
- *****************************************************************************/
-void
-ixgb_rar_set(struct ixgb_hw *hw,
-		  const u8 *addr,
-		  u32 index)
-{
-	u32 rar_low, rar_high;
-
-	ENTER();
-
-	/* HW expects these in little endian so we reverse the byte order
-	 * from network order (big endian) to little endian
-	 */
-	rar_low = ((u32) addr[0] |
-		   ((u32)addr[1] << 8) |
-		   ((u32)addr[2] << 16) |
-		   ((u32)addr[3] << 24));
-
-	rar_high = ((u32) addr[4] |
-			((u32)addr[5] << 8) |
-			IXGB_RAH_AV);
-
-	IXGB_WRITE_REG_ARRAY(hw, RA, (index << 1), rar_low);
-	IXGB_WRITE_REG_ARRAY(hw, RA, ((index << 1) + 1), rar_high);
-}
-
-/******************************************************************************
- * Writes a value to the specified offset in the VLAN filter table.
- *
- * hw - Struct containing variables accessed by shared code
- * offset - Offset in VLAN filter table to write
- * value - Value to write into VLAN filter table
- *****************************************************************************/
-void
-ixgb_write_vfta(struct ixgb_hw *hw,
-		 u32 offset,
-		 u32 value)
-{
-	IXGB_WRITE_REG_ARRAY(hw, VFTA, offset, value);
-}
-
-/******************************************************************************
- * Clears the VLAN filter table
- *
- * hw - Struct containing variables accessed by shared code
- *****************************************************************************/
-static void
-ixgb_clear_vfta(struct ixgb_hw *hw)
-{
-	u32 offset;
-
-	for (offset = 0; offset < IXGB_VLAN_FILTER_TBL_SIZE; offset++)
-		IXGB_WRITE_REG_ARRAY(hw, VFTA, offset, 0);
-}
-
-/******************************************************************************
- * Configures the flow control settings based on SW configuration.
- *
- * hw - Struct containing variables accessed by shared code
- *****************************************************************************/
-
-static bool
-ixgb_setup_fc(struct ixgb_hw *hw)
-{
-	u32 ctrl_reg;
-	u32 pap_reg = 0;   /* by default, assume no pause time */
-	bool status = true;
-
-	ENTER();
-
-	/* Get the current control reg 0 settings */
-	ctrl_reg = IXGB_READ_REG(hw, CTRL0);
-
-	/* Clear the Receive Pause Enable and Transmit Pause Enable bits */
-	ctrl_reg &= ~(IXGB_CTRL0_RPE | IXGB_CTRL0_TPE);
-
-	/* The possible values of the "flow_control" parameter are:
-	 *      0:  Flow control is completely disabled
-	 *      1:  Rx flow control is enabled (we can receive pause frames
-	 *          but not send pause frames).
-	 *      2:  Tx flow control is enabled (we can send pause frames
-	 *          but we do not support receiving pause frames).
-	 *      3:  Both Rx and TX flow control (symmetric) are enabled.
-	 *  other:  Invalid.
-	 */
-	switch (hw->fc.type) {
-	case ixgb_fc_none:	/* 0 */
-		/* Set CMDC bit to disable Rx Flow control */
-		ctrl_reg |= (IXGB_CTRL0_CMDC);
-		break;
-	case ixgb_fc_rx_pause:	/* 1 */
-		/* RX Flow control is enabled, and TX Flow control is
-		 * disabled.
-		 */
-		ctrl_reg |= (IXGB_CTRL0_RPE);
-		break;
-	case ixgb_fc_tx_pause:	/* 2 */
-		/* TX Flow control is enabled, and RX Flow control is
-		 * disabled, by a software over-ride.
-		 */
-		ctrl_reg |= (IXGB_CTRL0_TPE);
-		pap_reg = hw->fc.pause_time;
-		break;
-	case ixgb_fc_full:	/* 3 */
-		/* Flow control (both RX and TX) is enabled by a software
-		 * over-ride.
-		 */
-		ctrl_reg |= (IXGB_CTRL0_RPE | IXGB_CTRL0_TPE);
-		pap_reg = hw->fc.pause_time;
-		break;
-	default:
-		/* We should never get here.  The value should be 0-3. */
-		pr_debug("Flow control param set incorrectly\n");
-		ASSERT(0);
-		break;
-	}
-
-	/* Write the new settings */
-	IXGB_WRITE_REG(hw, CTRL0, ctrl_reg);
-
-	if (pap_reg != 0)
-		IXGB_WRITE_REG(hw, PAP, pap_reg);
-
-	/* Set the flow control receive threshold registers.  Normally,
-	 * these registers will be set to a default threshold that may be
-	 * adjusted later by the driver's runtime code.  However, if the
-	 * ability to transmit pause frames in not enabled, then these
-	 * registers will be set to 0.
-	 */
-	if (!(hw->fc.type & ixgb_fc_tx_pause)) {
-		IXGB_WRITE_REG(hw, FCRTL, 0);
-		IXGB_WRITE_REG(hw, FCRTH, 0);
-	} else {
-	   /* We need to set up the Receive Threshold high and low water
-	    * marks as well as (optionally) enabling the transmission of XON
-	    * frames. */
-		if (hw->fc.send_xon) {
-			IXGB_WRITE_REG(hw, FCRTL,
-				(hw->fc.low_water | IXGB_FCRTL_XONE));
-		} else {
-			IXGB_WRITE_REG(hw, FCRTL, hw->fc.low_water);
-		}
-		IXGB_WRITE_REG(hw, FCRTH, hw->fc.high_water);
-	}
-	return status;
-}
-
-/******************************************************************************
- * Reads a word from a device over the Management Data Interface (MDI) bus.
- * This interface is used to manage Physical layer devices.
- *
- * hw          - Struct containing variables accessed by hw code
- * reg_address - Offset of device register being read.
- * phy_address - Address of device on MDI.
- *
- * Returns:  Data word (16 bits) from MDI device.
- *
- * The 82597EX has support for several MDI access methods.  This routine
- * uses the new protocol MDI Single Command and Address Operation.
- * This requires that first an address cycle command is sent, followed by a
- * read command.
- *****************************************************************************/
-static u16
-ixgb_read_phy_reg(struct ixgb_hw *hw,
-		u32 reg_address,
-		u32 phy_address,
-		u32 device_type)
-{
-	u32 i;
-	u32 data;
-	u32 command = 0;
-
-	ASSERT(reg_address <= IXGB_MAX_PHY_REG_ADDRESS);
-	ASSERT(phy_address <= IXGB_MAX_PHY_ADDRESS);
-	ASSERT(device_type <= IXGB_MAX_PHY_DEV_TYPE);
-
-	/* Setup and write the address cycle command */
-	command = ((reg_address << IXGB_MSCA_NP_ADDR_SHIFT) |
-		   (device_type << IXGB_MSCA_DEV_TYPE_SHIFT) |
-		   (phy_address << IXGB_MSCA_PHY_ADDR_SHIFT) |
-		   (IXGB_MSCA_ADDR_CYCLE | IXGB_MSCA_MDI_COMMAND));
-
-	IXGB_WRITE_REG(hw, MSCA, command);
-
-    /**************************************************************
-    ** Check every 10 usec to see if the address cycle completed
-    ** The COMMAND bit will clear when the operation is complete.
-    ** This may take as long as 64 usecs (we'll wait 100 usecs max)
-    ** from the CPU Write to the Ready bit assertion.
-    **************************************************************/
-
-	for (i = 0; i < 10; i++)
-	{
-		udelay(10);
-
-		command = IXGB_READ_REG(hw, MSCA);
-
-		if ((command & IXGB_MSCA_MDI_COMMAND) == 0)
-			break;
-	}
-
-	ASSERT((command & IXGB_MSCA_MDI_COMMAND) == 0);
-
-	/* Address cycle complete, setup and write the read command */
-	command = ((reg_address << IXGB_MSCA_NP_ADDR_SHIFT) |
-		   (device_type << IXGB_MSCA_DEV_TYPE_SHIFT) |
-		   (phy_address << IXGB_MSCA_PHY_ADDR_SHIFT) |
-		   (IXGB_MSCA_READ | IXGB_MSCA_MDI_COMMAND));
-
-	IXGB_WRITE_REG(hw, MSCA, command);
-
-    /**************************************************************
-    ** Check every 10 usec to see if the read command completed
-    ** The COMMAND bit will clear when the operation is complete.
-    ** The read may take as long as 64 usecs (we'll wait 100 usecs max)
-    ** from the CPU Write to the Ready bit assertion.
-    **************************************************************/
-
-	for (i = 0; i < 10; i++)
-	{
-		udelay(10);
-
-		command = IXGB_READ_REG(hw, MSCA);
-
-		if ((command & IXGB_MSCA_MDI_COMMAND) == 0)
-			break;
-	}
-
-	ASSERT((command & IXGB_MSCA_MDI_COMMAND) == 0);
-
-	/* Operation is complete, get the data from the MDIO Read/Write Data
-	 * register and return.
-	 */
-	data = IXGB_READ_REG(hw, MSRWD);
-	data >>= IXGB_MSRWD_READ_DATA_SHIFT;
-	return((u16) data);
-}
-
-/******************************************************************************
- * Writes a word to a device over the Management Data Interface (MDI) bus.
- * This interface is used to manage Physical layer devices.
- *
- * hw          - Struct containing variables accessed by hw code
- * reg_address - Offset of device register being read.
- * phy_address - Address of device on MDI.
- * device_type - Also known as the Device ID or DID.
- * data        - 16-bit value to be written
- *
- * Returns:  void.
- *
- * The 82597EX has support for several MDI access methods.  This routine
- * uses the new protocol MDI Single Command and Address Operation.
- * This requires that first an address cycle command is sent, followed by a
- * write command.
- *****************************************************************************/
-static void
-ixgb_write_phy_reg(struct ixgb_hw *hw,
-			u32 reg_address,
-			u32 phy_address,
-			u32 device_type,
-			u16 data)
-{
-	u32 i;
-	u32 command = 0;
-
-	ASSERT(reg_address <= IXGB_MAX_PHY_REG_ADDRESS);
-	ASSERT(phy_address <= IXGB_MAX_PHY_ADDRESS);
-	ASSERT(device_type <= IXGB_MAX_PHY_DEV_TYPE);
-
-	/* Put the data in the MDIO Read/Write Data register */
-	IXGB_WRITE_REG(hw, MSRWD, (u32)data);
-
-	/* Setup and write the address cycle command */
-	command = ((reg_address << IXGB_MSCA_NP_ADDR_SHIFT)  |
-			   (device_type << IXGB_MSCA_DEV_TYPE_SHIFT) |
-			   (phy_address << IXGB_MSCA_PHY_ADDR_SHIFT) |
-			   (IXGB_MSCA_ADDR_CYCLE | IXGB_MSCA_MDI_COMMAND));
-
-	IXGB_WRITE_REG(hw, MSCA, command);
-
-	/**************************************************************
-	** Check every 10 usec to see if the address cycle completed
-	** The COMMAND bit will clear when the operation is complete.
-	** This may take as long as 64 usecs (we'll wait 100 usecs max)
-	** from the CPU Write to the Ready bit assertion.
-	**************************************************************/
-
-	for (i = 0; i < 10; i++)
-	{
-		udelay(10);
-
-		command = IXGB_READ_REG(hw, MSCA);
-
-		if ((command & IXGB_MSCA_MDI_COMMAND) == 0)
-			break;
-	}
-
-	ASSERT((command & IXGB_MSCA_MDI_COMMAND) == 0);
-
-	/* Address cycle complete, setup and write the write command */
-	command = ((reg_address << IXGB_MSCA_NP_ADDR_SHIFT)  |
-			   (device_type << IXGB_MSCA_DEV_TYPE_SHIFT) |
-			   (phy_address << IXGB_MSCA_PHY_ADDR_SHIFT) |
-			   (IXGB_MSCA_WRITE | IXGB_MSCA_MDI_COMMAND));
-
-	IXGB_WRITE_REG(hw, MSCA, command);
-
-	/**************************************************************
-	** Check every 10 usec to see if the read command completed
-	** The COMMAND bit will clear when the operation is complete.
-	** The write may take as long as 64 usecs (we'll wait 100 usecs max)
-	** from the CPU Write to the Ready bit assertion.
-	**************************************************************/
-
-	for (i = 0; i < 10; i++)
-	{
-		udelay(10);
-
-		command = IXGB_READ_REG(hw, MSCA);
-
-		if ((command & IXGB_MSCA_MDI_COMMAND) == 0)
-			break;
-	}
-
-	ASSERT((command & IXGB_MSCA_MDI_COMMAND) == 0);
-
-	/* Operation is complete, return. */
-}
-
-/******************************************************************************
- * Checks to see if the link status of the hardware has changed.
- *
- * hw - Struct containing variables accessed by hw code
- *
- * Called by any function that needs to check the link status of the adapter.
- *****************************************************************************/
-void
-ixgb_check_for_link(struct ixgb_hw *hw)
-{
-	u32 status_reg;
-	u32 xpcss_reg;
-
-	ENTER();
-
-	xpcss_reg = IXGB_READ_REG(hw, XPCSS);
-	status_reg = IXGB_READ_REG(hw, STATUS);
-
-	if ((xpcss_reg & IXGB_XPCSS_ALIGN_STATUS) &&
-	    (status_reg & IXGB_STATUS_LU)) {
-		hw->link_up = true;
-	} else if (!(xpcss_reg & IXGB_XPCSS_ALIGN_STATUS) &&
-		   (status_reg & IXGB_STATUS_LU)) {
-		pr_debug("XPCSS Not Aligned while Status:LU is set\n");
-		hw->link_up = ixgb_link_reset(hw);
-	} else {
-		/*
-		 * 82597EX errata.  Since the lane deskew problem may prevent
-		 * link, reset the link before reporting link down.
-		 */
-		hw->link_up = ixgb_link_reset(hw);
-	}
-	/*  Anything else for 10 Gig?? */
-}
-
-/******************************************************************************
- * Check for a bad link condition that may have occurred.
- * The indication is that the RFC / LFC registers may be incrementing
- * continually.  A full adapter reset is required to recover.
- *
- * hw - Struct containing variables accessed by hw code
- *
- * Called by any function that needs to check the link status of the adapter.
- *****************************************************************************/
-bool ixgb_check_for_bad_link(struct ixgb_hw *hw)
-{
-	u32 newLFC, newRFC;
-	bool bad_link_returncode = false;
-
-	if (hw->phy_type == ixgb_phy_type_txn17401) {
-		newLFC = IXGB_READ_REG(hw, LFC);
-		newRFC = IXGB_READ_REG(hw, RFC);
-		if ((hw->lastLFC + 250 < newLFC)
-		    || (hw->lastRFC + 250 < newRFC)) {
-			pr_debug("BAD LINK! too many LFC/RFC since last check\n");
-			bad_link_returncode = true;
-		}
-		hw->lastLFC = newLFC;
-		hw->lastRFC = newRFC;
-	}
-
-	return bad_link_returncode;
-}
-
-/******************************************************************************
- * Clears all hardware statistics counters.
- *
- * hw - Struct containing variables accessed by shared code
- *****************************************************************************/
-static void
-ixgb_clear_hw_cntrs(struct ixgb_hw *hw)
-{
-	ENTER();
-
-	/* if we are stopped or resetting exit gracefully */
-	if (hw->adapter_stopped) {
-		pr_debug("Exiting because the adapter is stopped!!!\n");
-		return;
-	}
-
-	IXGB_READ_REG(hw, TPRL);
-	IXGB_READ_REG(hw, TPRH);
-	IXGB_READ_REG(hw, GPRCL);
-	IXGB_READ_REG(hw, GPRCH);
-	IXGB_READ_REG(hw, BPRCL);
-	IXGB_READ_REG(hw, BPRCH);
-	IXGB_READ_REG(hw, MPRCL);
-	IXGB_READ_REG(hw, MPRCH);
-	IXGB_READ_REG(hw, UPRCL);
-	IXGB_READ_REG(hw, UPRCH);
-	IXGB_READ_REG(hw, VPRCL);
-	IXGB_READ_REG(hw, VPRCH);
-	IXGB_READ_REG(hw, JPRCL);
-	IXGB_READ_REG(hw, JPRCH);
-	IXGB_READ_REG(hw, GORCL);
-	IXGB_READ_REG(hw, GORCH);
-	IXGB_READ_REG(hw, TORL);
-	IXGB_READ_REG(hw, TORH);
-	IXGB_READ_REG(hw, RNBC);
-	IXGB_READ_REG(hw, RUC);
-	IXGB_READ_REG(hw, ROC);
-	IXGB_READ_REG(hw, RLEC);
-	IXGB_READ_REG(hw, CRCERRS);
-	IXGB_READ_REG(hw, ICBC);
-	IXGB_READ_REG(hw, ECBC);
-	IXGB_READ_REG(hw, MPC);
-	IXGB_READ_REG(hw, TPTL);
-	IXGB_READ_REG(hw, TPTH);
-	IXGB_READ_REG(hw, GPTCL);
-	IXGB_READ_REG(hw, GPTCH);
-	IXGB_READ_REG(hw, BPTCL);
-	IXGB_READ_REG(hw, BPTCH);
-	IXGB_READ_REG(hw, MPTCL);
-	IXGB_READ_REG(hw, MPTCH);
-	IXGB_READ_REG(hw, UPTCL);
-	IXGB_READ_REG(hw, UPTCH);
-	IXGB_READ_REG(hw, VPTCL);
-	IXGB_READ_REG(hw, VPTCH);
-	IXGB_READ_REG(hw, JPTCL);
-	IXGB_READ_REG(hw, JPTCH);
-	IXGB_READ_REG(hw, GOTCL);
-	IXGB_READ_REG(hw, GOTCH);
-	IXGB_READ_REG(hw, TOTL);
-	IXGB_READ_REG(hw, TOTH);
-	IXGB_READ_REG(hw, DC);
-	IXGB_READ_REG(hw, PLT64C);
-	IXGB_READ_REG(hw, TSCTC);
-	IXGB_READ_REG(hw, TSCTFC);
-	IXGB_READ_REG(hw, IBIC);
-	IXGB_READ_REG(hw, RFC);
-	IXGB_READ_REG(hw, LFC);
-	IXGB_READ_REG(hw, PFRC);
-	IXGB_READ_REG(hw, PFTC);
-	IXGB_READ_REG(hw, MCFRC);
-	IXGB_READ_REG(hw, MCFTC);
-	IXGB_READ_REG(hw, XONRXC);
-	IXGB_READ_REG(hw, XONTXC);
-	IXGB_READ_REG(hw, XOFFRXC);
-	IXGB_READ_REG(hw, XOFFTXC);
-	IXGB_READ_REG(hw, RJC);
-}
-
-/******************************************************************************
- * Turns on the software controllable LED
- *
- * hw - Struct containing variables accessed by shared code
- *****************************************************************************/
-void
-ixgb_led_on(struct ixgb_hw *hw)
-{
-	u32 ctrl0_reg = IXGB_READ_REG(hw, CTRL0);
-
-	/* To turn on the LED, clear software-definable pin 0 (SDP0). */
-	ctrl0_reg &= ~IXGB_CTRL0_SDP0;
-	IXGB_WRITE_REG(hw, CTRL0, ctrl0_reg);
-}
-
-/******************************************************************************
- * Turns off the software controllable LED
- *
- * hw - Struct containing variables accessed by shared code
- *****************************************************************************/
-void
-ixgb_led_off(struct ixgb_hw *hw)
-{
-	u32 ctrl0_reg = IXGB_READ_REG(hw, CTRL0);
-
-	/* To turn off the LED, set software-definable pin 0 (SDP0). */
-	ctrl0_reg |= IXGB_CTRL0_SDP0;
-	IXGB_WRITE_REG(hw, CTRL0, ctrl0_reg);
-}
-
-/******************************************************************************
- * Gets the current PCI bus type, speed, and width of the hardware
- *
- * hw - Struct containing variables accessed by shared code
- *****************************************************************************/
-static void
-ixgb_get_bus_info(struct ixgb_hw *hw)
-{
-	u32 status_reg;
-
-	status_reg = IXGB_READ_REG(hw, STATUS);
-
-	hw->bus.type = (status_reg & IXGB_STATUS_PCIX_MODE) ?
-		ixgb_bus_type_pcix : ixgb_bus_type_pci;
-
-	if (hw->bus.type == ixgb_bus_type_pci) {
-		hw->bus.speed = (status_reg & IXGB_STATUS_PCI_SPD) ?
-			ixgb_bus_speed_66 : ixgb_bus_speed_33;
-	} else {
-		switch (status_reg & IXGB_STATUS_PCIX_SPD_MASK) {
-		case IXGB_STATUS_PCIX_SPD_66:
-			hw->bus.speed = ixgb_bus_speed_66;
-			break;
-		case IXGB_STATUS_PCIX_SPD_100:
-			hw->bus.speed = ixgb_bus_speed_100;
-			break;
-		case IXGB_STATUS_PCIX_SPD_133:
-			hw->bus.speed = ixgb_bus_speed_133;
-			break;
-		default:
-			hw->bus.speed = ixgb_bus_speed_reserved;
-			break;
-		}
-	}
-
-	hw->bus.width = (status_reg & IXGB_STATUS_BUS64) ?
-		ixgb_bus_width_64 : ixgb_bus_width_32;
-}
-
-/******************************************************************************
- * Tests a MAC address to ensure it is a valid Individual Address
- *
- * mac_addr - pointer to MAC address.
- *
- *****************************************************************************/
-static bool
-mac_addr_valid(u8 *mac_addr)
-{
-	bool is_valid = true;
-	ENTER();
-
-	/* Make sure it is not a multicast address */
-	if (is_multicast_ether_addr(mac_addr)) {
-		pr_debug("MAC address is multicast\n");
-		is_valid = false;
-	}
-	/* Not a broadcast address */
-	else if (is_broadcast_ether_addr(mac_addr)) {
-		pr_debug("MAC address is broadcast\n");
-		is_valid = false;
-	}
-	/* Reject the zero address */
-	else if (is_zero_ether_addr(mac_addr)) {
-		pr_debug("MAC address is all zeros\n");
-		is_valid = false;
-	}
-	return is_valid;
-}
-
-/******************************************************************************
- * Resets the 10GbE link.  Waits the settle time and returns the state of
- * the link.
- *
- * hw - Struct containing variables accessed by shared code
- *****************************************************************************/
-static bool
-ixgb_link_reset(struct ixgb_hw *hw)
-{
-	bool link_status = false;
-	u8 wait_retries = MAX_RESET_ITERATIONS;
-	u8 lrst_retries = MAX_RESET_ITERATIONS;
-
-	do {
-		/* Reset the link */
-		IXGB_WRITE_REG(hw, CTRL0,
-			       IXGB_READ_REG(hw, CTRL0) | IXGB_CTRL0_LRST);
-
-		/* Wait for link-up and lane re-alignment */
-		do {
-			udelay(IXGB_DELAY_USECS_AFTER_LINK_RESET);
-			link_status =
-			    ((IXGB_READ_REG(hw, STATUS) & IXGB_STATUS_LU)
-			     && (IXGB_READ_REG(hw, XPCSS) &
-				 IXGB_XPCSS_ALIGN_STATUS)) ? true : false;
-		} while (!link_status && --wait_retries);
-
-	} while (!link_status && --lrst_retries);
-
-	return link_status;
-}
-
-/******************************************************************************
- * Resets the 10GbE optics module.
- *
- * hw - Struct containing variables accessed by shared code
- *****************************************************************************/
-static void
-ixgb_optics_reset(struct ixgb_hw *hw)
-{
-	if (hw->phy_type == ixgb_phy_type_txn17401) {
-		ixgb_write_phy_reg(hw,
-				   MDIO_CTRL1,
-				   IXGB_PHY_ADDRESS,
-				   MDIO_MMD_PMAPMD,
-				   MDIO_CTRL1_RESET);
-
-		ixgb_read_phy_reg(hw, MDIO_CTRL1, IXGB_PHY_ADDRESS, MDIO_MMD_PMAPMD);
-	}
-}
-
-/******************************************************************************
- * Resets the 10GbE optics module for Sun variant NIC.
- *
- * hw - Struct containing variables accessed by shared code
- *****************************************************************************/
-
-#define   IXGB_BCM8704_USER_PMD_TX_CTRL_REG         0xC803
-#define   IXGB_BCM8704_USER_PMD_TX_CTRL_REG_VAL     0x0164
-#define   IXGB_BCM8704_USER_CTRL_REG                0xC800
-#define   IXGB_BCM8704_USER_CTRL_REG_VAL            0x7FBF
-#define   IXGB_BCM8704_USER_DEV3_ADDR               0x0003
-#define   IXGB_SUN_PHY_ADDRESS                      0x0000
-#define   IXGB_SUN_PHY_RESET_DELAY                     305
-
-static void
-ixgb_optics_reset_bcm(struct ixgb_hw *hw)
-{
-	u32 ctrl = IXGB_READ_REG(hw, CTRL0);
-	ctrl &= ~IXGB_CTRL0_SDP2;
-	ctrl |= IXGB_CTRL0_SDP3;
-	IXGB_WRITE_REG(hw, CTRL0, ctrl);
-	IXGB_WRITE_FLUSH(hw);
-
-	/* SerDes needs extra delay */
-	msleep(IXGB_SUN_PHY_RESET_DELAY);
-
-	/* Broadcom 7408L configuration */
-	/* Reference clock config */
-	ixgb_write_phy_reg(hw,
-			   IXGB_BCM8704_USER_PMD_TX_CTRL_REG,
-			   IXGB_SUN_PHY_ADDRESS,
-			   IXGB_BCM8704_USER_DEV3_ADDR,
-			   IXGB_BCM8704_USER_PMD_TX_CTRL_REG_VAL);
-	/*  we must read the registers twice */
-	ixgb_read_phy_reg(hw,
-			  IXGB_BCM8704_USER_PMD_TX_CTRL_REG,
-			  IXGB_SUN_PHY_ADDRESS,
-			  IXGB_BCM8704_USER_DEV3_ADDR);
-	ixgb_read_phy_reg(hw,
-			  IXGB_BCM8704_USER_PMD_TX_CTRL_REG,
-			  IXGB_SUN_PHY_ADDRESS,
-			  IXGB_BCM8704_USER_DEV3_ADDR);
-
-	ixgb_write_phy_reg(hw,
-			   IXGB_BCM8704_USER_CTRL_REG,
-			   IXGB_SUN_PHY_ADDRESS,
-			   IXGB_BCM8704_USER_DEV3_ADDR,
-			   IXGB_BCM8704_USER_CTRL_REG_VAL);
-	ixgb_read_phy_reg(hw,
-			  IXGB_BCM8704_USER_CTRL_REG,
-			  IXGB_SUN_PHY_ADDRESS,
-			  IXGB_BCM8704_USER_DEV3_ADDR);
-	ixgb_read_phy_reg(hw,
-			  IXGB_BCM8704_USER_CTRL_REG,
-			  IXGB_SUN_PHY_ADDRESS,
-			  IXGB_BCM8704_USER_DEV3_ADDR);
-
-	/* SerDes needs extra delay */
-	msleep(IXGB_SUN_PHY_RESET_DELAY);
-}

drivers/net/ethernet/intel/ixgb/ixgb_hw.h

-/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright(c) 1999 - 2008 Intel Corporation. */
-
-#ifndef _IXGB_HW_H_
-#define _IXGB_HW_H_
-
-#include <linux/mdio.h>
-
-#include "ixgb_osdep.h"
-
-/* Enums */
-typedef enum {
-	ixgb_mac_unknown = 0,
-	ixgb_82597,
-	ixgb_num_macs
-} ixgb_mac_type;
-
-/* Types of physical layer modules */
-typedef enum {
-	ixgb_phy_type_unknown = 0,
-	ixgb_phy_type_g6005,	/* 850nm, MM fiber, XPAK transceiver */
-	ixgb_phy_type_g6104,	/* 1310nm, SM fiber, XPAK transceiver */
-	ixgb_phy_type_txn17201,	/* 850nm, MM fiber, XPAK transceiver */
-	ixgb_phy_type_txn17401,	/* 1310nm, SM fiber, XENPAK transceiver */
-	ixgb_phy_type_bcm	/* SUN specific board */
-} ixgb_phy_type;
-
-/* XPAK transceiver vendors, for the SR adapters */
-typedef enum {
-	ixgb_xpak_vendor_intel,
-	ixgb_xpak_vendor_infineon
-} ixgb_xpak_vendor;
-
-/* Media Types */
-typedef enum {
-	ixgb_media_type_unknown = 0,
-	ixgb_media_type_fiber = 1,
-	ixgb_media_type_copper = 2,
-	ixgb_num_media_types
-} ixgb_media_type;
-
-/* Flow Control Settings */
-typedef enum {
-	ixgb_fc_none = 0,
-	ixgb_fc_rx_pause = 1,
-	ixgb_fc_tx_pause = 2,
-	ixgb_fc_full = 3,
-	ixgb_fc_default = 0xFF
-} ixgb_fc_type;
-
-/* PCI bus types */
-typedef enum {
-	ixgb_bus_type_unknown = 0,
-	ixgb_bus_type_pci,
-	ixgb_bus_type_pcix
-} ixgb_bus_type;
-
-/* PCI bus speeds */
-typedef enum {
-	ixgb_bus_speed_unknown = 0,
-	ixgb_bus_speed_33,
-	ixgb_bus_speed_66,
-	ixgb_bus_speed_100,
-	ixgb_bus_speed_133,
-	ixgb_bus_speed_reserved
-} ixgb_bus_speed;
-
-/* PCI bus widths */
-typedef enum {
-	ixgb_bus_width_unknown = 0,
-	ixgb_bus_width_32,
-	ixgb_bus_width_64
-} ixgb_bus_width;
-
-#define IXGB_EEPROM_SIZE    64	/* Size in words */
-
-#define SPEED_10000  10000
-#define FULL_DUPLEX  2
-
-#define MIN_NUMBER_OF_DESCRIPTORS       8
-#define MAX_NUMBER_OF_DESCRIPTORS  0xFFF8	/* 13 bits in RDLEN/TDLEN, 128B aligned     */
-
-#define IXGB_DELAY_BEFORE_RESET        10	/* allow 10ms after idling rx/tx units      */
-#define IXGB_DELAY_AFTER_RESET          1	/* allow 1ms after the reset                */
-#define IXGB_DELAY_AFTER_EE_RESET      10	/* allow 10ms after the EEPROM reset        */
-
-#define IXGB_DELAY_USECS_AFTER_LINK_RESET    13	/* allow 13 microseconds after the reset    */
-					   /* NOTE: this is MICROSECONDS               */
-#define MAX_RESET_ITERATIONS            8	/* number of iterations to get things right */
-
-/* General Registers */
-#define IXGB_CTRL0   0x00000	/* Device Control Register 0 - RW */
-#define IXGB_CTRL1   0x00008	/* Device Control Register 1 - RW */
-#define IXGB_STATUS  0x00010	/* Device Status Register - RO */
-#define IXGB_EECD    0x00018	/* EEPROM/Flash Control/Data Register - RW */
-#define IXGB_MFS     0x00020	/* Maximum Frame Size - RW */
-
-/* Interrupt */
-#define IXGB_ICR     0x00080	/* Interrupt Cause Read - R/clr */
-#define IXGB_ICS     0x00088	/* Interrupt Cause Set - RW */
-#define IXGB_IMS     0x00090	/* Interrupt Mask Set/Read - RW */
-#define IXGB_IMC     0x00098	/* Interrupt Mask Clear - WO */
-
-/* Receive */
-#define IXGB_RCTL    0x00100	/* RX Control - RW */
-#define IXGB_FCRTL   0x00108	/* Flow Control Receive Threshold Low - RW */
-#define IXGB_FCRTH   0x00110	/* Flow Control Receive Threshold High - RW */
-#define IXGB_RDBAL   0x00118	/* RX Descriptor Base Low - RW */
-#define IXGB_RDBAH   0x0011C	/* RX Descriptor Base High - RW */
-#define IXGB_RDLEN   0x00120	/* RX Descriptor Length - RW */
-#define IXGB_RDH     0x00128	/* RX Descriptor Head - RW */
-#define IXGB_RDT     0x00130	/* RX Descriptor Tail - RW */
-#define IXGB_RDTR    0x00138	/* RX Delay Timer Ring - RW */
-#define IXGB_RXDCTL  0x00140	/* Receive Descriptor Control - RW */
-#define IXGB_RAIDC   0x00148	/* Receive Adaptive Interrupt Delay Control - RW */
-#define IXGB_RXCSUM  0x00158	/* Receive Checksum Control - RW */
-#define IXGB_RA      0x00180	/* Receive Address Array Base - RW */
-#define IXGB_RAL     0x00180	/* Receive Address Low [0:15] - RW */
-#define IXGB_RAH     0x00184	/* Receive Address High [0:15] - RW */
-#define IXGB_MTA     0x00200	/* Multicast Table Array [0:127] - RW */
-#define IXGB_VFTA    0x00400	/* VLAN Filter Table Array [0:127] - RW */
-#define IXGB_REQ_RX_DESCRIPTOR_MULTIPLE 8
-
-/* Transmit */
-#define IXGB_TCTL    0x00600	/* TX Control - RW */
-#define IXGB_TDBAL   0x00608	/* TX Descriptor Base Low - RW */
-#define IXGB_TDBAH   0x0060C	/* TX Descriptor Base High - RW */
-#define IXGB_TDLEN   0x00610	/* TX Descriptor Length - RW */
-#define IXGB_TDH     0x00618	/* TX Descriptor Head - RW */
-#define IXGB_TDT     0x00620	/* TX Descriptor Tail - RW */
-#define IXGB_TIDV    0x00628	/* TX Interrupt Delay Value - RW */
-#define IXGB_TXDCTL  0x00630	/* Transmit Descriptor Control - RW */
-#define IXGB_TSPMT   0x00638	/* TCP Segmentation PAD & Min Threshold - RW */
-#define IXGB_PAP     0x00640	/* Pause and Pace - RW */
-#define IXGB_REQ_TX_DESCRIPTOR_MULTIPLE 8
-
-/* Physical */
-#define IXGB_PCSC1   0x00700	/* PCS Control 1 - RW */
-#define IXGB_PCSC2   0x00708	/* PCS Control 2 - RW */
-#define IXGB_PCSS1   0x00710	/* PCS Status 1 - RO */
-#define IXGB_PCSS2   0x00718	/* PCS Status 2 - RO */
-#define IXGB_XPCSS   0x00720	/* 10GBASE-X PCS Status (or XGXS Lane Status) - RO */
-#define IXGB_UCCR    0x00728	/* Unilink Circuit Control Register */
-#define IXGB_XPCSTC  0x00730	/* 10GBASE-X PCS Test Control */
-#define IXGB_MACA    0x00738	/* MDI Autoscan Command and Address - RW */
-#define IXGB_APAE    0x00740	/* Autoscan PHY Address Enable - RW */
-#define IXGB_ARD     0x00748	/* Autoscan Read Data - RO */
-#define IXGB_AIS     0x00750	/* Autoscan Interrupt Status - RO */
-#define IXGB_MSCA    0x00758	/* MDI Single Command and Address - RW */
-#define IXGB_MSRWD   0x00760	/* MDI Single Read and Write Data - RW, RO */
-
-/* Wake-up */
-#define IXGB_WUFC    0x00808	/* Wake Up Filter Control - RW */
-#define IXGB_WUS     0x00810	/* Wake Up Status - RO */
-#define IXGB_FFLT    0x01000	/* Flexible Filter Length Table - RW */
-#define IXGB_FFMT    0x01020	/* Flexible Filter Mask Table - RW */
-#define IXGB_FTVT    0x01420	/* Flexible Filter Value Table - RW */
-
-/* Statistics */
-#define IXGB_TPRL    0x02000	/* Total Packets Received (Low) */
-#define IXGB_TPRH    0x02004	/* Total Packets Received (High) */
-#define IXGB_GPRCL   0x02008	/* Good Packets Received Count (Low) */
-#define IXGB_GPRCH   0x0200C	/* Good Packets Received Count (High) */
-#define IXGB_BPRCL   0x02010	/* Broadcast Packets Received Count (Low) */
-#define IXGB_BPRCH   0x02014	/* Broadcast Packets Received Count (High) */
-#define IXGB_MPRCL   0x02018	/* Multicast Packets Received Count (Low) */
-#define IXGB_MPRCH   0x0201C	/* Multicast Packets Received Count (High) */
-#define IXGB_UPRCL   0x02020	/* Unicast Packets Received Count (Low) */
-#define IXGB_UPRCH   0x02024	/* Unicast Packets Received Count (High) */
-#define IXGB_VPRCL   0x02028	/* VLAN Packets Received Count (Low) */
-#define IXGB_VPRCH   0x0202C	/* VLAN Packets Received Count (High) */
-#define IXGB_JPRCL   0x02030	/* Jumbo Packets Received Count (Low) */
-#define IXGB_JPRCH   0x02034	/* Jumbo Packets Received Count (High) */
-#define IXGB_GORCL   0x02038	/* Good Octets Received Count (Low) */
-#define IXGB_GORCH   0x0203C	/* Good Octets Received Count (High) */
-#define IXGB_TORL    0x02040	/* Total Octets Received (Low) */
-#define IXGB_TORH    0x02044	/* Total Octets Received (High) */
-#define IXGB_RNBC    0x02048	/* Receive No Buffers Count */
-#define IXGB_RUC     0x02050	/* Receive Undersize Count */
-#define IXGB_ROC     0x02058	/* Receive Oversize Count */
-#define IXGB_RLEC    0x02060	/* Receive Length Error Count */
-#define IXGB_CRCERRS 0x02068	/* CRC Error Count */
-#define IXGB_ICBC    0x02070	/* Illegal control byte in mid-packet Count */
-#define IXGB_ECBC    0x02078	/* Error Control byte in mid-packet Count */
-#define IXGB_MPC     0x02080	/* Missed Packets Count */
-#define IXGB_TPTL    0x02100	/* Total Packets Transmitted (Low) */
-#define IXGB_TPTH    0x02104	/* Total Packets Transmitted (High) */
-#define IXGB_GPTCL   0x02108	/* Good Packets Transmitted Count (Low) */
-#define IXGB_GPTCH   0x0210C	/* Good Packets Transmitted Count (High) */
-#define IXGB_BPTCL   0x02110	/* Broadcast Packets Transmitted Count (Low) */
-#define IXGB_BPTCH   0x02114	/* Broadcast Packets Transmitted Count (High) */
-#define IXGB_MPTCL   0x02118	/* Multicast Packets Transmitted Count (Low) */
-#define IXGB_MPTCH   0x0211C	/* Multicast Packets Transmitted Count (High) */
-#define IXGB_UPTCL   0x02120	/* Unicast Packets Transmitted Count (Low) */
-#define IXGB_UPTCH   0x02124	/* Unicast Packets Transmitted Count (High) */
-#define IXGB_VPTCL   0x02128	/* VLAN Packets Transmitted Count (Low) */
-#define IXGB_VPTCH   0x0212C	/* VLAN Packets Transmitted Count (High) */
-#define IXGB_JPTCL   0x02130	/* Jumbo Packets Transmitted Count (Low) */
-#define IXGB_JPTCH   0x02134	/* Jumbo Packets Transmitted Count (High) */
-#define IXGB_GOTCL   0x02138	/* Good Octets Transmitted Count (Low) */
-#define IXGB_GOTCH   0x0213C	/* Good Octets Transmitted Count (High) */
-#define IXGB_TOTL    0x02140	/* Total Octets Transmitted Count (Low) */
-#define IXGB_TOTH    0x02144	/* Total Octets Transmitted Count (High) */
-#define IXGB_DC      0x02148	/* Defer Count */
-#define IXGB_PLT64C  0x02150	/* Packet Transmitted was less than 64 bytes Count */
-#define IXGB_TSCTC   0x02170	/* TCP Segmentation Context Transmitted Count */
-#define IXGB_TSCTFC  0x02178	/* TCP Segmentation Context Tx Fail Count */
-#define IXGB_IBIC    0x02180	/* Illegal byte during Idle stream count */
-#define IXGB_RFC     0x02188	/* Remote Fault Count */
-#define IXGB_LFC     0x02190	/* Local Fault Count */
-#define IXGB_PFRC    0x02198	/* Pause Frame Receive Count */
-#define IXGB_PFTC    0x021A0	/* Pause Frame Transmit Count */
-#define IXGB_MCFRC   0x021A8	/* MAC Control Frames (non-Pause) Received Count */
-#define IXGB_MCFTC   0x021B0	/* MAC Control Frames (non-Pause) Transmitted Count */
-#define IXGB_XONRXC  0x021B8	/* XON Received Count */
-#define IXGB_XONTXC  0x021C0	/* XON Transmitted Count */
-#define IXGB_XOFFRXC 0x021C8	/* XOFF Received Count */
-#define IXGB_XOFFTXC 0x021D0	/* XOFF Transmitted Count */
-#define IXGB_RJC     0x021D8	/* Receive Jabber Count */
-
-/* CTRL0 Bit Masks */
-#define IXGB_CTRL0_LRST     0x00000008
-#define IXGB_CTRL0_JFE      0x00000010
-#define IXGB_CTRL0_XLE      0x00000020
-#define IXGB_CTRL0_MDCS     0x00000040
-#define IXGB_CTRL0_CMDC     0x00000080
-#define IXGB_CTRL0_SDP0     0x00040000
-#define IXGB_CTRL0_SDP1     0x00080000
-#define IXGB_CTRL0_SDP2     0x00100000
-#define IXGB_CTRL0_SDP3     0x00200000
-#define IXGB_CTRL0_SDP0_DIR 0x00400000
-#define IXGB_CTRL0_SDP1_DIR 0x00800000
-#define IXGB_CTRL0_SDP2_DIR 0x01000000
-#define IXGB_CTRL0_SDP3_DIR 0x02000000
-#define IXGB_CTRL0_RST      0x04000000
-#define IXGB_CTRL0_RPE      0x08000000
-#define IXGB_CTRL0_TPE      0x10000000
-#define IXGB_CTRL0_VME      0x40000000
-
-/* CTRL1 Bit Masks */
-#define IXGB_CTRL1_GPI0_EN     0x00000001
-#define IXGB_CTRL1_GPI1_EN     0x00000002
-#define IXGB_CTRL1_GPI2_EN     0x00000004
-#define IXGB_CTRL1_GPI3_EN     0x00000008
-#define IXGB_CTRL1_SDP4        0x00000010
-#define IXGB_CTRL1_SDP5        0x00000020
-#define IXGB_CTRL1_SDP6        0x00000040
-#define IXGB_CTRL1_SDP7        0x00000080
-#define IXGB_CTRL1_SDP4_DIR    0x00000100
-#define IXGB_CTRL1_SDP5_DIR    0x00000200
-#define IXGB_CTRL1_SDP6_DIR    0x00000400
-#define IXGB_CTRL1_SDP7_DIR    0x00000800
-#define IXGB_CTRL1_EE_RST      0x00002000
-#define IXGB_CTRL1_RO_DIS      0x00020000
-#define IXGB_CTRL1_PCIXHM_MASK 0x00C00000
-#define IXGB_CTRL1_PCIXHM_1_2  0x00000000
-#define IXGB_CTRL1_PCIXHM_5_8  0x00400000
-#define IXGB_CTRL1_PCIXHM_3_4  0x00800000
-#define IXGB_CTRL1_PCIXHM_7_8  0x00C00000
-
-/* STATUS Bit Masks */
-#define IXGB_STATUS_LU            0x00000002
-#define IXGB_STATUS_AIP           0x00000004
-#define IXGB_STATUS_TXOFF         0x00000010
-#define IXGB_STATUS_XAUIME        0x00000020
-#define IXGB_STATUS_RES           0x00000040
-#define IXGB_STATUS_RIS           0x00000080
-#define IXGB_STATUS_RIE           0x00000100
-#define IXGB_STATUS_RLF           0x00000200
-#define IXGB_STATUS_RRF           0x00000400
-#define IXGB_STATUS_PCI_SPD       0x00000800
-#define IXGB_STATUS_BUS64         0x00001000
-#define IXGB_STATUS_PCIX_MODE     0x00002000
-#define IXGB_STATUS_PCIX_SPD_MASK 0x0000C000
-#define IXGB_STATUS_PCIX_SPD_66   0x00000000
-#define IXGB_STATUS_PCIX_SPD_100  0x00004000
-#define IXGB_STATUS_PCIX_SPD_133  0x00008000
-#define IXGB_STATUS_REV_ID_MASK   0x000F0000
-#define IXGB_STATUS_REV_ID_SHIFT  16
-
-/* EECD Bit Masks */
-#define IXGB_EECD_SK       0x00000001
-#define IXGB_EECD_CS       0x00000002
-#define IXGB_EECD_DI       0x00000004
-#define IXGB_EECD_DO       0x00000008
-#define IXGB_EECD_FWE_MASK 0x00000030
-#define IXGB_EECD_FWE_DIS  0x00000010
-#define IXGB_EECD_FWE_EN   0x00000020
-
-/* MFS */
-#define IXGB_MFS_SHIFT 16
-
-/* Interrupt Register Bit Masks (used for ICR, ICS, IMS, and IMC) */
-#define IXGB_INT_TXDW     0x00000001
-#define IXGB_INT_TXQE     0x00000002
-#define IXGB_INT_LSC      0x00000004
-#define IXGB_INT_RXSEQ    0x00000008
-#define IXGB_INT_RXDMT0   0x00000010
-#define IXGB_INT_RXO      0x00000040
-#define IXGB_INT_RXT0     0x00000080
-#define IXGB_INT_AUTOSCAN 0x00000200
-#define IXGB_INT_GPI0     0x00000800
-#define IXGB_INT_GPI1     0x00001000
-#define IXGB_INT_GPI2     0x00002000
-#define IXGB_INT_GPI3     0x00004000
-
-/* RCTL Bit Masks */
-#define IXGB_RCTL_RXEN        0x00000002
-#define IXGB_RCTL_SBP         0x00000004
-#define IXGB_RCTL_UPE         0x00000008
-#define IXGB_RCTL_MPE         0x00000010
-#define IXGB_RCTL_RDMTS_MASK  0x00000300
-#define IXGB_RCTL_RDMTS_1_2   0x00000000
-#define IXGB_RCTL_RDMTS_1_4   0x00000100
-#define IXGB_RCTL_RDMTS_1_8   0x00000200
-#define IXGB_RCTL_MO_MASK     0x00003000
-#define IXGB_RCTL_MO_47_36    0x00000000
-#define IXGB_RCTL_MO_46_35    0x00001000
-#define IXGB_RCTL_MO_45_34    0x00002000
-#define IXGB_RCTL_MO_43_32    0x00003000
-#define IXGB_RCTL_MO_SHIFT    12
-#define IXGB_RCTL_BAM         0x00008000
-#define IXGB_RCTL_BSIZE_MASK  0x00030000
-#define IXGB_RCTL_BSIZE_2048  0x00000000
-#define IXGB_RCTL_BSIZE_4096  0x00010000
-#define IXGB_RCTL_BSIZE_8192  0x00020000
-#define IXGB_RCTL_BSIZE_16384 0x00030000
-#define IXGB_RCTL_VFE         0x00040000
-#define IXGB_RCTL_CFIEN       0x00080000
-#define IXGB_RCTL_CFI         0x00100000
-#define IXGB_RCTL_RPDA_MASK   0x00600000
-#define IXGB_RCTL_RPDA_MC_MAC 0x00000000
-#define IXGB_RCTL_MC_ONLY     0x00400000
-#define IXGB_RCTL_CFF         0x00800000
-#define IXGB_RCTL_SECRC       0x04000000
-#define IXGB_RDT_FPDB         0x80000000
-
-#define IXGB_RCTL_IDLE_RX_UNIT 0
-
-/* FCRTL Bit Masks */
-#define IXGB_FCRTL_XONE       0x80000000
-
-/* RXDCTL Bit Masks */
-#define IXGB_RXDCTL_PTHRESH_MASK  0x000001FF
-#define IXGB_RXDCTL_PTHRESH_SHIFT 0
-#define IXGB_RXDCTL_HTHRESH_MASK  0x0003FE00
-#define IXGB_RXDCTL_HTHRESH_SHIFT 9
-#define IXGB_RXDCTL_WTHRESH_MASK  0x07FC0000
-#define IXGB_RXDCTL_WTHRESH_SHIFT 18
-
-/* RAIDC Bit Masks */
-#define IXGB_RAIDC_HIGHTHRS_MASK 0x0000003F
-#define IXGB_RAIDC_DELAY_MASK    0x000FF800
-#define IXGB_RAIDC_DELAY_SHIFT   11
-#define IXGB_RAIDC_POLL_MASK     0x1FF00000
-#define IXGB_RAIDC_POLL_SHIFT    20
-#define IXGB_RAIDC_RXT_GATE      0x40000000
-#define IXGB_RAIDC_EN            0x80000000
-
-#define IXGB_RAIDC_POLL_1000_INTERRUPTS_PER_SECOND      1220
-#define IXGB_RAIDC_POLL_5000_INTERRUPTS_PER_SECOND      244
-#define IXGB_RAIDC_POLL_10000_INTERRUPTS_PER_SECOND     122
-#define IXGB_RAIDC_POLL_20000_INTERRUPTS_PER_SECOND     61
-
-/* RXCSUM Bit Masks */
-#define IXGB_RXCSUM_IPOFL 0x00000100
-#define IXGB_RXCSUM_TUOFL 0x00000200
-
-/* RAH Bit Masks */
-#define IXGB_RAH_ASEL_MASK 0x00030000
-#define IXGB_RAH_ASEL_DEST 0x00000000
-#define IXGB_RAH_ASEL_SRC  0x00010000
-#define IXGB_RAH_AV        0x80000000
-
-/* TCTL Bit Masks */
-#define IXGB_TCTL_TCE  0x00000001
-#define IXGB_TCTL_TXEN 0x00000002
-#define IXGB_TCTL_TPDE 0x00000004
-
-#define IXGB_TCTL_IDLE_TX_UNIT  0
-
-/* TXDCTL Bit Masks */
-#define IXGB_TXDCTL_PTHRESH_MASK  0x0000007F
-#define IXGB_TXDCTL_HTHRESH_MASK  0x00007F00
-#define IXGB_TXDCTL_HTHRESH_SHIFT 8
-#define IXGB_TXDCTL_WTHRESH_MASK  0x007F0000
-#define IXGB_TXDCTL_WTHRESH_SHIFT 16
-
-/* TSPMT Bit Masks */
-#define IXGB_TSPMT_TSMT_MASK   0x0000FFFF
-#define IXGB_TSPMT_TSPBP_MASK  0xFFFF0000
-#define IXGB_TSPMT_TSPBP_SHIFT 16
-
-/* PAP Bit Masks */
-#define IXGB_PAP_TXPC_MASK 0x0000FFFF
-#define IXGB_PAP_TXPV_MASK 0x000F0000
-#define IXGB_PAP_TXPV_10G  0x00000000
-#define IXGB_PAP_TXPV_1G   0x00010000
-#define IXGB_PAP_TXPV_2G   0x00020000
-#define IXGB_PAP_TXPV_3G   0x00030000
-#define IXGB_PAP_TXPV_4G   0x00040000
-#define IXGB_PAP_TXPV_5G   0x00050000
-#define IXGB_PAP_TXPV_6G   0x00060000
-#define IXGB_PAP_TXPV_7G   0x00070000
-#define IXGB_PAP_TXPV_8G   0x00080000
-#define IXGB_PAP_TXPV_9G   0x00090000
-#define IXGB_PAP_TXPV_WAN  0x000F0000
-
-/* PCSC1 Bit Masks */
-#define IXGB_PCSC1_LOOPBACK 0x00004000
-
-/* PCSC2 Bit Masks */
-#define IXGB_PCSC2_PCS_TYPE_MASK  0x00000003
-#define IXGB_PCSC2_PCS_TYPE_10GBX 0x00000001
-
-/* PCSS1 Bit Masks */
-#define IXGB_PCSS1_LOCAL_FAULT    0x00000080
-#define IXGB_PCSS1_RX_LINK_STATUS 0x00000004
-
-/* PCSS2 Bit Masks */
-#define IXGB_PCSS2_DEV_PRES_MASK 0x0000C000
-#define IXGB_PCSS2_DEV_PRES      0x00004000
-#define IXGB_PCSS2_TX_LF         0x00000800
-#define IXGB_PCSS2_RX_LF         0x00000400
-#define IXGB_PCSS2_10GBW         0x00000004
-#define IXGB_PCSS2_10GBX         0x00000002
-#define IXGB_PCSS2_10GBR         0x00000001
-
-/* XPCSS Bit Masks */
-#define IXGB_XPCSS_ALIGN_STATUS 0x00001000
-#define IXGB_XPCSS_PATTERN_TEST 0x00000800
-#define IXGB_XPCSS_LANE_3_SYNC  0x00000008
-#define IXGB_XPCSS_LANE_2_SYNC  0x00000004
-#define IXGB_XPCSS_LANE_1_SYNC  0x00000002
-#define IXGB_XPCSS_LANE_0_SYNC  0x00000001
-
-/* XPCSTC Bit Masks */
-#define IXGB_XPCSTC_BERT_TRIG       0x00200000
-#define IXGB_XPCSTC_BERT_SST        0x00100000
-#define IXGB_XPCSTC_BERT_PSZ_MASK   0x000C0000
-#define IXGB_XPCSTC_BERT_PSZ_SHIFT  17
-#define IXGB_XPCSTC_BERT_PSZ_INF    0x00000003
-#define IXGB_XPCSTC_BERT_PSZ_68     0x00000001
-#define IXGB_XPCSTC_BERT_PSZ_1028   0x00000000
-
-/* MSCA bit Masks */
-/* New Protocol Address */
-#define IXGB_MSCA_NP_ADDR_MASK      0x0000FFFF
-#define IXGB_MSCA_NP_ADDR_SHIFT     0
-/* Either Device Type or Register Address,depending on ST_CODE */
-#define IXGB_MSCA_DEV_TYPE_MASK     0x001F0000
-#define IXGB_MSCA_DEV_TYPE_SHIFT    16
-#define IXGB_MSCA_PHY_ADDR_MASK     0x03E00000
-#define IXGB_MSCA_PHY_ADDR_SHIFT    21
-#define IXGB_MSCA_OP_CODE_MASK      0x0C000000
-/* OP_CODE == 00, Address cycle, New Protocol           */
-/* OP_CODE == 01, Write operation                       */
-/* OP_CODE == 10, Read operation                        */
-/* OP_CODE == 11, Read, auto increment, New Protocol    */
-#define IXGB_MSCA_ADDR_CYCLE        0x00000000
-#define IXGB_MSCA_WRITE             0x04000000
-#define IXGB_MSCA_READ              0x08000000
-#define IXGB_MSCA_READ_AUTOINC      0x0C000000
-#define IXGB_MSCA_OP_CODE_SHIFT     26
-#define IXGB_MSCA_ST_CODE_MASK      0x30000000
-/* ST_CODE == 00, New Protocol  */
-/* ST_CODE == 01, Old Protocol  */
-#define IXGB_MSCA_NEW_PROTOCOL      0x00000000
-#define IXGB_MSCA_OLD_PROTOCOL      0x10000000
-#define IXGB_MSCA_ST_CODE_SHIFT     28
-/* Initiate command, self-clearing when command completes */
-#define IXGB_MSCA_MDI_COMMAND       0x40000000
-/*MDI In Progress Enable. */
-#define IXGB_MSCA_MDI_IN_PROG_EN    0x80000000
-
-/* MSRWD bit masks */
-#define IXGB_MSRWD_WRITE_DATA_MASK  0x0000FFFF
-#define IXGB_MSRWD_WRITE_DATA_SHIFT 0
-#define IXGB_MSRWD_READ_DATA_MASK   0xFFFF0000
-#define IXGB_MSRWD_READ_DATA_SHIFT  16
-
-/* Definitions for the optics devices on the MDIO bus. */
-#define IXGB_PHY_ADDRESS             0x0	/* Single PHY, multiple "Devices" */
-
-#define MDIO_PMA_PMD_XPAK_VENDOR_NAME       0x803A	/* XPAK/XENPAK devices only */
-
-/* Vendor-specific MDIO registers */
-#define G6XXX_PMA_PMD_VS1                   0xC001	/* Vendor-specific register */
-#define G6XXX_XGXS_XAUI_VS2                 0x18	/* Vendor-specific register */
-
-#define G6XXX_PMA_PMD_VS1_PLL_RESET         0x80
-#define G6XXX_PMA_PMD_VS1_REMOVE_PLL_RESET  0x00
-#define G6XXX_XGXS_XAUI_VS2_INPUT_MASK      0x0F	/* XAUI lanes synchronized */
-
-/* Layout of a single receive descriptor.  The controller assumes that this
- * structure is packed into 16 bytes, which is a safe assumption with most
- * compilers.  However, some compilers may insert padding between the fields,
- * in which case the structure must be packed in some compiler-specific
- * manner. */
-struct ixgb_rx_desc {
-	__le64 buff_addr;
-	__le16 length;
-	__le16 reserved;
-	u8 status;
-	u8 errors;
-	__le16 special;
-};
-
-#define IXGB_RX_DESC_STATUS_DD    0x01
-#define IXGB_RX_DESC_STATUS_EOP   0x02
-#define IXGB_RX_DESC_STATUS_IXSM  0x04
-#define IXGB_RX_DESC_STATUS_VP    0x08
-#define IXGB_RX_DESC_STATUS_TCPCS 0x20
-#define IXGB_RX_DESC_STATUS_IPCS  0x40
-#define IXGB_RX_DESC_STATUS_PIF   0x80
-
-#define IXGB_RX_DESC_ERRORS_CE   0x01
-#define IXGB_RX_DESC_ERRORS_SE   0x02
-#define IXGB_RX_DESC_ERRORS_P    0x08
-#define IXGB_RX_DESC_ERRORS_TCPE 0x20
-#define IXGB_RX_DESC_ERRORS_IPE  0x40
-#define IXGB_RX_DESC_ERRORS_RXE  0x80
-
-#define IXGB_RX_DESC_SPECIAL_VLAN_MASK  0x0FFF	/* VLAN ID is in lower 12 bits */
-#define IXGB_RX_DESC_SPECIAL_PRI_MASK   0xE000	/* Priority is in upper 3 bits */
-#define IXGB_RX_DESC_SPECIAL_PRI_SHIFT  0x000D	/* Priority is in upper 3 of 16 */
-
-/* Layout of a single transmit descriptor.  The controller assumes that this
- * structure is packed into 16 bytes, which is a safe assumption with most
- * compilers.  However, some compilers may insert padding between the fields,
- * in which case the structure must be packed in some compiler-specific
- * manner. */
-struct ixgb_tx_desc {
-	__le64 buff_addr;
-	__le32 cmd_type_len;
-	u8 status;
-	u8 popts;
-	__le16 vlan;
-};
-
-#define IXGB_TX_DESC_LENGTH_MASK    0x000FFFFF
-#define IXGB_TX_DESC_TYPE_MASK      0x00F00000
-#define IXGB_TX_DESC_TYPE_SHIFT     20
-#define IXGB_TX_DESC_CMD_MASK       0xFF000000
-#define IXGB_TX_DESC_CMD_SHIFT      24
-#define IXGB_TX_DESC_CMD_EOP        0x01000000
-#define IXGB_TX_DESC_CMD_TSE        0x04000000
-#define IXGB_TX_DESC_CMD_RS         0x08000000
-#define IXGB_TX_DESC_CMD_VLE        0x40000000
-#define IXGB_TX_DESC_CMD_IDE        0x80000000
-
-#define IXGB_TX_DESC_TYPE           0x00100000
-
-#define IXGB_TX_DESC_STATUS_DD  0x01
-
-#define IXGB_TX_DESC_POPTS_IXSM 0x01
-#define IXGB_TX_DESC_POPTS_TXSM 0x02
-#define IXGB_TX_DESC_SPECIAL_PRI_SHIFT  IXGB_RX_DESC_SPECIAL_PRI_SHIFT	/* Priority is in upper 3 of 16 */
-
-struct ixgb_context_desc {
-	u8 ipcss;
-	u8 ipcso;
-	__le16 ipcse;
-	u8 tucss;
-	u8 tucso;
-	__le16 tucse;
-	__le32 cmd_type_len;
-	u8 status;
-	u8 hdr_len;
-	__le16 mss;
-};
-
-#define IXGB_CONTEXT_DESC_CMD_TCP 0x01000000
-#define IXGB_CONTEXT_DESC_CMD_IP  0x02000000
-#define IXGB_CONTEXT_DESC_CMD_TSE 0x04000000
-#define IXGB_CONTEXT_DESC_CMD_RS  0x08000000
-#define IXGB_CONTEXT_DESC_CMD_IDE 0x80000000
-
-#define IXGB_CONTEXT_DESC_TYPE 0x00000000
-
-#define IXGB_CONTEXT_DESC_STATUS_DD 0x01
-
-/* Filters */
-#define IXGB_MC_TBL_SIZE          128	/* Multicast Filter Table (4096 bits) */
-#define IXGB_VLAN_FILTER_TBL_SIZE 128	/* VLAN Filter Table (4096 bits) */
-#define IXGB_RAR_ENTRIES		  3	/* Number of entries in Rx Address array */
-
-#define IXGB_MEMORY_REGISTER_BASE_ADDRESS   0
-#define ENET_HEADER_SIZE			14
-#define ENET_FCS_LENGTH			 4
-#define IXGB_MAX_NUM_MULTICAST_ADDRESSES	128
-#define IXGB_MIN_ENET_FRAME_SIZE_WITHOUT_FCS	60
-#define IXGB_MAX_ENET_FRAME_SIZE_WITHOUT_FCS	1514
-#define IXGB_MAX_JUMBO_FRAME_SIZE		0x3F00
-
-/* Phy Addresses */
-#define IXGB_OPTICAL_PHY_ADDR 0x0	/* Optical Module phy address */
-#define IXGB_XAUII_PHY_ADDR   0x1	/* Xauii transceiver phy address */
-#define IXGB_DIAG_PHY_ADDR    0x1F	/* Diagnostic Device phy address */
-
-/* This structure takes a 64k flash and maps it for identification commands */
-struct ixgb_flash_buffer {
-	u8 manufacturer_id;
-	u8 device_id;
-	u8 filler1[0x2AA8];
-	u8 cmd2;
-	u8 filler2[0x2AAA];
-	u8 cmd1;
-	u8 filler3[0xAAAA];
-};
-
-/* Flow control parameters */
-struct ixgb_fc {
-	u32 high_water;	/* Flow Control High-water          */
-	u32 low_water;	/* Flow Control Low-water           */
-	u16 pause_time;	/* Flow Control Pause timer         */
-	bool send_xon;		/* Flow control send XON            */
-	ixgb_fc_type type;	/* Type of flow control             */
-};
-
-/* The historical defaults for the flow control values are given below. */
-#define FC_DEFAULT_HI_THRESH        (0x8000)	/* 32KB */
-#define FC_DEFAULT_LO_THRESH        (0x4000)	/* 16KB */
-#define FC_DEFAULT_TX_TIMER         (0x100)	/* ~130 us */
-
-/* Phy definitions */
-#define IXGB_MAX_PHY_REG_ADDRESS    0xFFFF
-#define IXGB_MAX_PHY_ADDRESS        31
-#define IXGB_MAX_PHY_DEV_TYPE       31
-
-/* Bus parameters */
-struct ixgb_bus {
-	ixgb_bus_speed speed;
-	ixgb_bus_width width;
-	ixgb_bus_type type;
-};
-
-struct ixgb_hw {
-	u8 __iomem *hw_addr;/* Base Address of the hardware     */
-	void *back;		/* Pointer to OS-dependent struct   */
-	struct ixgb_fc fc;	/* Flow control parameters          */
-	struct ixgb_bus bus;	/* Bus parameters                   */
-	u32 phy_id;	/* Phy Identifier                   */
-	u32 phy_addr;	/* XGMII address of Phy             */
-	ixgb_mac_type mac_type;	/* Identifier for MAC controller    */
-	ixgb_phy_type phy_type;	/* Transceiver/phy identifier       */
-	u32 max_frame_size;	/* Maximum frame size supported     */
-	u32 mc_filter_type;	/* Multicast filter hash type       */
-	u32 num_mc_addrs;	/* Number of current Multicast addrs */
-	u8 curr_mac_addr[ETH_ALEN];	/* Individual address currently programmed in MAC */
-	u32 num_tx_desc;	/* Number of Transmit descriptors   */
-	u32 num_rx_desc;	/* Number of Receive descriptors    */
-	u32 rx_buffer_size;	/* Size of Receive buffer           */
-	bool link_up;		/* true if link is valid            */
-	bool adapter_stopped;	/* State of adapter                 */
-	u16 device_id;	/* device id from PCI configuration space */
-	u16 vendor_id;	/* vendor id from PCI configuration space */
-	u8 revision_id;	/* revision id from PCI configuration space */
-	u16 subsystem_vendor_id;	/* subsystem vendor id from PCI configuration space */
-	u16 subsystem_id;	/* subsystem id from PCI configuration space */
-	u32 bar0;		/* Base Address registers           */
-	u32 bar1;
-	u32 bar2;
-	u32 bar3;
-	u16 pci_cmd_word;	/* PCI command register id from PCI configuration space */
-	__le16 eeprom[IXGB_EEPROM_SIZE];	/* EEPROM contents read at init time  */
-	unsigned long io_base;	/* Our I/O mapped location */
-	u32 lastLFC;
-	u32 lastRFC;
-};
-
-/* Statistics reported by the hardware */
-struct ixgb_hw_stats {
-	u64 tprl;
-	u64 tprh;
-	u64 gprcl;
-	u64 gprch;
-	u64 bprcl;
-	u64 bprch;
-	u64 mprcl;
-	u64 mprch;
-	u64 uprcl;
-	u64 uprch;
-	u64 vprcl;
-	u64 vprch;
-	u64 jprcl;
-	u64 jprch;
-	u64 gorcl;
-	u64 gorch;
-	u64 torl;
-	u64 torh;
-	u64 rnbc;
-	u64 ruc;
-	u64 roc;
-	u64 rlec;
-	u64 crcerrs;
-	u64 icbc;
-	u64 ecbc;
-	u64 mpc;
-	u64 tptl;
-	u64 tpth;
-	u64 gptcl;
-	u64 gptch;
-	u64 bptcl;
-	u64 bptch;
-	u64 mptcl;
-	u64 mptch;
-	u64 uptcl;
-	u64 uptch;
-	u64 vptcl;
-	u64 vptch;
-	u64 jptcl;
-	u64 jptch;
-	u64 gotcl;
-	u64 gotch;
-	u64 totl;
-	u64 toth;
-	u64 dc;
-	u64 plt64c;
-	u64 tsctc;
-	u64 tsctfc;
-	u64 ibic;
-	u64 rfc;
-	u64 lfc;
-	u64 pfrc;
-	u64 pftc;
-	u64 mcfrc;
-	u64 mcftc;
-	u64 xonrxc;
-	u64 xontxc;
-	u64 xoffrxc;
-	u64 xofftxc;
-	u64 rjc;
-};
-
-/* Function Prototypes */
-bool ixgb_adapter_stop(struct ixgb_hw *hw);
-bool ixgb_init_hw(struct ixgb_hw *hw);
-bool ixgb_adapter_start(struct ixgb_hw *hw);
-void ixgb_check_for_link(struct ixgb_hw *hw);
-bool ixgb_check_for_bad_link(struct ixgb_hw *hw);
-
-void ixgb_rar_set(struct ixgb_hw *hw, const u8 *addr, u32 index);
-
-/* Filters (multicast, vlan, receive) */
-void ixgb_mc_addr_list_update(struct ixgb_hw *hw, u8 *mc_addr_list,
-			      u32 mc_addr_count, u32 pad);
-
-/* Vfta functions */
-void ixgb_write_vfta(struct ixgb_hw *hw, u32 offset, u32 value);
-
-/* Access functions to eeprom data */
-void ixgb_get_ee_mac_addr(struct ixgb_hw *hw, u8 *mac_addr);
-u32 ixgb_get_ee_pba_number(struct ixgb_hw *hw);
-u16 ixgb_get_ee_device_id(struct ixgb_hw *hw);
-bool ixgb_get_eeprom_data(struct ixgb_hw *hw);
-__le16 ixgb_get_eeprom_word(struct ixgb_hw *hw, u16 index);
-
-/* Everything else */
-void ixgb_led_on(struct ixgb_hw *hw);
-void ixgb_led_off(struct ixgb_hw *hw);
-void ixgb_write_pci_cfg(struct ixgb_hw *hw,
-			 u32 reg,
-			 u16 * value);
-
-
-#endif /* _IXGB_HW_H_ */

drivers/net/ethernet/intel/ixgb/ixgb_ids.h

-/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright(c) 1999 - 2008 Intel Corporation. */
-
-#ifndef _IXGB_IDS_H_
-#define _IXGB_IDS_H_
-
-/**********************************************************************
-** The Device and Vendor IDs for 10 Gigabit MACs
-**********************************************************************/
-
-#define IXGB_DEVICE_ID_82597EX      0x1048
-#define IXGB_DEVICE_ID_82597EX_SR   0x1A48
-#define IXGB_DEVICE_ID_82597EX_LR   0x1B48
-#define IXGB_SUBDEVICE_ID_A11F      0xA11F
-#define IXGB_SUBDEVICE_ID_A01F      0xA01F
-
-#define IXGB_DEVICE_ID_82597EX_CX4   0x109E
-#define IXGB_SUBDEVICE_ID_A00C  0xA00C
-#define IXGB_SUBDEVICE_ID_A01C  0xA01C
-#define IXGB_SUBDEVICE_ID_7036  0x7036
-
-#endif /* #ifndef _IXGB_IDS_H_ */
-/* End of File */

drivers/net/ethernet/intel/ixgb/ixgb_main.c

-// SPDX-License-Identifier: GPL-2.0
-/* Copyright(c) 1999 - 2008 Intel Corporation. */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/prefetch.h>
-#include "ixgb.h"
-
-char ixgb_driver_name[] = "ixgb";
-static char ixgb_driver_string[] = "Intel(R) PRO/10GbE Network Driver";
-
-static const char ixgb_copyright[] = "Copyright (c) 1999-2008 Intel Corporation.";
-
-#define IXGB_CB_LENGTH 256
-static unsigned int copybreak __read_mostly = IXGB_CB_LENGTH;
-module_param(copybreak, uint, 0644);
-MODULE_PARM_DESC(copybreak,
-	"Maximum size of packet that is copied to a new buffer on receive");
-
-/* ixgb_pci_tbl - PCI Device ID Table
- *
- * Wildcard entries (PCI_ANY_ID) should come last
- * Last entry must be all 0s
- *
- * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
- *   Class, Class Mask, private data (not used) }
- */
-static const struct pci_device_id ixgb_pci_tbl[] = {
-	{PCI_VENDOR_ID_INTEL, IXGB_DEVICE_ID_82597EX,
-	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{PCI_VENDOR_ID_INTEL, IXGB_DEVICE_ID_82597EX_CX4,
-	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{PCI_VENDOR_ID_INTEL, IXGB_DEVICE_ID_82597EX_SR,
-	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{PCI_VENDOR_ID_INTEL, IXGB_DEVICE_ID_82597EX_LR,
-	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-
-	/* required last entry */
-	{0,}
-};
-
-MODULE_DEVICE_TABLE(pci, ixgb_pci_tbl);
-
-/* Local Function Prototypes */
-static int ixgb_init_module(void);
-static void ixgb_exit_module(void);
-static int ixgb_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
-static void ixgb_remove(struct pci_dev *pdev);
-static int ixgb_sw_init(struct ixgb_adapter *adapter);
-static int ixgb_open(struct net_device *netdev);
-static int ixgb_close(struct net_device *netdev);
-static void ixgb_configure_tx(struct ixgb_adapter *adapter);
-static void ixgb_configure_rx(struct ixgb_adapter *adapter);
-static void ixgb_setup_rctl(struct ixgb_adapter *adapter);
-static void ixgb_clean_tx_ring(struct ixgb_adapter *adapter);
-static void ixgb_clean_rx_ring(struct ixgb_adapter *adapter);
-static void ixgb_set_multi(struct net_device *netdev);
-static void ixgb_watchdog(struct timer_list *t);
-static netdev_tx_t ixgb_xmit_frame(struct sk_buff *skb,
-				   struct net_device *netdev);
-static int ixgb_change_mtu(struct net_device *netdev, int new_mtu);
-static int ixgb_set_mac(struct net_device *netdev, void *p);
-static irqreturn_t ixgb_intr(int irq, void *data);
-static bool ixgb_clean_tx_irq(struct ixgb_adapter *adapter);
-
-static int ixgb_clean(struct napi_struct *, int);
-static bool ixgb_clean_rx_irq(struct ixgb_adapter *, int *, int);
-static void ixgb_alloc_rx_buffers(struct ixgb_adapter *, int);
-
-static void ixgb_tx_timeout(struct net_device *dev, unsigned int txqueue);
-static void ixgb_tx_timeout_task(struct work_struct *work);
-
-static void ixgb_vlan_strip_enable(struct ixgb_adapter *adapter);
-static void ixgb_vlan_strip_disable(struct ixgb_adapter *adapter);
-static int ixgb_vlan_rx_add_vid(struct net_device *netdev,
-				__be16 proto, u16 vid);
-static int ixgb_vlan_rx_kill_vid(struct net_device *netdev,
-				 __be16 proto, u16 vid);
-static void ixgb_restore_vlan(struct ixgb_adapter *adapter);
-
-static pci_ers_result_t ixgb_io_error_detected (struct pci_dev *pdev,
-                             pci_channel_state_t state);
-static pci_ers_result_t ixgb_io_slot_reset (struct pci_dev *pdev);
-static void ixgb_io_resume (struct pci_dev *pdev);
-
-static const struct pci_error_handlers ixgb_err_handler = {
-	.error_detected = ixgb_io_error_detected,
-	.slot_reset = ixgb_io_slot_reset,
-	.resume = ixgb_io_resume,
-};
-
-static struct pci_driver ixgb_driver = {
-	.name     = ixgb_driver_name,
-	.id_table = ixgb_pci_tbl,
-	.probe    = ixgb_probe,
-	.remove   = ixgb_remove,
-	.err_handler = &ixgb_err_handler
-};
-
-MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
-MODULE_DESCRIPTION("Intel(R) PRO/10GbE Network Driver");
-MODULE_LICENSE("GPL v2");
-
-#define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK)
-static int debug = -1;
-module_param(debug, int, 0);
-MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
-
-/**
- * ixgb_init_module - Driver Registration Routine
- *
- * ixgb_init_module is the first routine called when the driver is
- * loaded. All it does is register with the PCI subsystem.
- **/
-
-static int __init
-ixgb_init_module(void)
-{
-	pr_info("%s\n", ixgb_driver_string);
-	pr_info("%s\n", ixgb_copyright);
-
-	return pci_register_driver(&ixgb_driver);
-}
-
-module_init(ixgb_init_module);
-
-/**
- * ixgb_exit_module - Driver Exit Cleanup Routine
- *
- * ixgb_exit_module is called just before the driver is removed
- * from memory.
- **/
-
-static void __exit
-ixgb_exit_module(void)
-{
-	pci_unregister_driver(&ixgb_driver);
-}
-
-module_exit(ixgb_exit_module);
-
-/**
- * ixgb_irq_disable - Mask off interrupt generation on the NIC
- * @adapter: board private structure
- **/
-
-static void
-ixgb_irq_disable(struct ixgb_adapter *adapter)
-{
-	IXGB_WRITE_REG(&adapter->hw, IMC, ~0);
-	IXGB_WRITE_FLUSH(&adapter->hw);
-	synchronize_irq(adapter->pdev->irq);
-}
-
-/**
- * ixgb_irq_enable - Enable default interrupt generation settings
- * @adapter: board private structure
- **/
-
-static void
-ixgb_irq_enable(struct ixgb_adapter *adapter)
-{
-	u32 val = IXGB_INT_RXT0 | IXGB_INT_RXDMT0 |
-		  IXGB_INT_TXDW | IXGB_INT_LSC;
-	if (adapter->hw.subsystem_vendor_id == PCI_VENDOR_ID_SUN)
-		val |= IXGB_INT_GPI0;
-	IXGB_WRITE_REG(&adapter->hw, IMS, val);
-	IXGB_WRITE_FLUSH(&adapter->hw);
-}
-
-int
-ixgb_up(struct ixgb_adapter *adapter)
-{
-	struct net_device *netdev = adapter->netdev;
-	int err, irq_flags = IRQF_SHARED;
-	int max_frame = netdev->mtu + ENET_HEADER_SIZE + ENET_FCS_LENGTH;
-	struct ixgb_hw *hw = &adapter->hw;
-
-	/* hardware has been reset, we need to reload some things */
-
-	ixgb_rar_set(hw, netdev->dev_addr, 0);
-	ixgb_set_multi(netdev);
-
-	ixgb_restore_vlan(adapter);
-
-	ixgb_configure_tx(adapter);
-	ixgb_setup_rctl(adapter);
-	ixgb_configure_rx(adapter);
-	ixgb_alloc_rx_buffers(adapter, IXGB_DESC_UNUSED(&adapter->rx_ring));
-
-	/* disable interrupts and get the hardware into a known state */
-	IXGB_WRITE_REG(&adapter->hw, IMC, 0xffffffff);
-
-	/* only enable MSI if bus is in PCI-X mode */
-	if (IXGB_READ_REG(&adapter->hw, STATUS) & IXGB_STATUS_PCIX_MODE) {
-		err = pci_enable_msi(adapter->pdev);
-		if (!err) {
-			adapter->have_msi = true;
-			irq_flags = 0;
-		}
-		/* proceed to try to request regular interrupt */
-	}
-
-	err = request_irq(adapter->pdev->irq, ixgb_intr, irq_flags,
-	                  netdev->name, netdev);
-	if (err) {
-		if (adapter->have_msi)
-			pci_disable_msi(adapter->pdev);
-		netif_err(adapter, probe, adapter->netdev,
-			  "Unable to allocate interrupt Error: %d\n", err);
-		return err;
-	}
-
-	if ((hw->max_frame_size != max_frame) ||
-		(hw->max_frame_size !=
-		(IXGB_READ_REG(hw, MFS) >> IXGB_MFS_SHIFT))) {
-
-		hw->max_frame_size = max_frame;
-
-		IXGB_WRITE_REG(hw, MFS, hw->max_frame_size << IXGB_MFS_SHIFT);
-
-		if (hw->max_frame_size >
-		   IXGB_MAX_ENET_FRAME_SIZE_WITHOUT_FCS + ENET_FCS_LENGTH) {
-			u32 ctrl0 = IXGB_READ_REG(hw, CTRL0);
-
-			if (!(ctrl0 & IXGB_CTRL0_JFE)) {
-				ctrl0 |= IXGB_CTRL0_JFE;
-				IXGB_WRITE_REG(hw, CTRL0, ctrl0);
-			}
-		}
-	}
-
-	clear_bit(__IXGB_DOWN, &adapter->flags);
-
-	napi_enable(&adapter->napi);
-	ixgb_irq_enable(adapter);
-
-	netif_wake_queue(netdev);
-
-	mod_timer(&adapter->watchdog_timer, jiffies);
-
-	return 0;
-}
-
-void
-ixgb_down(struct ixgb_adapter *adapter, bool kill_watchdog)
-{
-	struct net_device *netdev = adapter->netdev;
-
-	/* prevent the interrupt handler from restarting watchdog */
-	set_bit(__IXGB_DOWN, &adapter->flags);
-
-	netif_carrier_off(netdev);
-
-	napi_disable(&adapter->napi);
-	/* waiting for NAPI to complete can re-enable interrupts */
-	ixgb_irq_disable(adapter);
-	free_irq(adapter->pdev->irq, netdev);
-
-	if (adapter->have_msi)
-		pci_disable_msi(adapter->pdev);
-
-	if (kill_watchdog)
-		del_timer_sync(&adapter->watchdog_timer);
-
-	adapter->link_speed = 0;
-	adapter->link_duplex = 0;
-	netif_stop_queue(netdev);
-
-	ixgb_reset(adapter);
-	ixgb_clean_tx_ring(adapter);
-	ixgb_clean_rx_ring(adapter);
-}
-
-void
-ixgb_reset(struct ixgb_adapter *adapter)
-{
-	struct ixgb_hw *hw = &adapter->hw;
-
-	ixgb_adapter_stop(hw);
-	if (!ixgb_init_hw(hw))
-		netif_err(adapter, probe, adapter->netdev, "ixgb_init_hw failed\n");
-
-	/* restore frame size information */
-	IXGB_WRITE_REG(hw, MFS, hw->max_frame_size << IXGB_MFS_SHIFT);
-	if (hw->max_frame_size >
-	    IXGB_MAX_ENET_FRAME_SIZE_WITHOUT_FCS + ENET_FCS_LENGTH) {
-		u32 ctrl0 = IXGB_READ_REG(hw, CTRL0);
-		if (!(ctrl0 & IXGB_CTRL0_JFE)) {
-			ctrl0 |= IXGB_CTRL0_JFE;
-			IXGB_WRITE_REG(hw, CTRL0, ctrl0);
-		}
-	}
-}
-
-static netdev_features_t
-ixgb_fix_features(struct net_device *netdev, netdev_features_t features)
-{
-	/*
-	 * Tx VLAN insertion does not work per HW design when Rx stripping is
-	 * disabled.
-	 */
-	if (!(features & NETIF_F_HW_VLAN_CTAG_RX))
-		features &= ~NETIF_F_HW_VLAN_CTAG_TX;
-
-	return features;
-}
-
-static int
-ixgb_set_features(struct net_device *netdev, netdev_features_t features)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	netdev_features_t changed = features ^ netdev->features;
-
-	if (!(changed & (NETIF_F_RXCSUM|NETIF_F_HW_VLAN_CTAG_RX)))
-		return 0;
-
-	adapter->rx_csum = !!(features & NETIF_F_RXCSUM);
-
-	if (netif_running(netdev)) {
-		ixgb_down(adapter, true);
-		ixgb_up(adapter);
-		ixgb_set_speed_duplex(netdev);
-	} else
-		ixgb_reset(adapter);
-
-	return 0;
-}
-
-
-static const struct net_device_ops ixgb_netdev_ops = {
-	.ndo_open 		= ixgb_open,
-	.ndo_stop		= ixgb_close,
-	.ndo_start_xmit		= ixgb_xmit_frame,
-	.ndo_set_rx_mode	= ixgb_set_multi,
-	.ndo_validate_addr	= eth_validate_addr,
-	.ndo_set_mac_address	= ixgb_set_mac,
-	.ndo_change_mtu		= ixgb_change_mtu,
-	.ndo_tx_timeout		= ixgb_tx_timeout,
-	.ndo_vlan_rx_add_vid	= ixgb_vlan_rx_add_vid,
-	.ndo_vlan_rx_kill_vid	= ixgb_vlan_rx_kill_vid,
-	.ndo_fix_features       = ixgb_fix_features,
-	.ndo_set_features       = ixgb_set_features,
-};
-
-/**
- * ixgb_probe - Device Initialization Routine
- * @pdev: PCI device information struct
- * @ent: entry in ixgb_pci_tbl
- *
- * Returns 0 on success, negative on failure
- *
- * ixgb_probe initializes an adapter identified by a pci_dev structure.
- * The OS initialization, configuring of the adapter private structure,
- * and a hardware reset occur.
- **/
-
-static int
-ixgb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
-	struct net_device *netdev = NULL;
-	struct ixgb_adapter *adapter;
-	static int cards_found = 0;
-	u8 addr[ETH_ALEN];
-	int i;
-	int err;
-
-	err = pci_enable_device(pdev);
-	if (err)
-		return err;
-
-	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
-	if (err) {
-		pr_err("No usable DMA configuration, aborting\n");
-		goto err_dma_mask;
-	}
-
-	err = pci_request_regions(pdev, ixgb_driver_name);
-	if (err)
-		goto err_request_regions;
-
-	pci_set_master(pdev);
-
-	netdev = alloc_etherdev(sizeof(struct ixgb_adapter));
-	if (!netdev) {
-		err = -ENOMEM;
-		goto err_alloc_etherdev;
-	}
-
-	SET_NETDEV_DEV(netdev, &pdev->dev);
-
-	pci_set_drvdata(pdev, netdev);
-	adapter = netdev_priv(netdev);
-	adapter->netdev = netdev;
-	adapter->pdev = pdev;
-	adapter->hw.back = adapter;
-	adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE);
-
-	adapter->hw.hw_addr = pci_ioremap_bar(pdev, BAR_0);
-	if (!adapter->hw.hw_addr) {
-		err = -EIO;
-		goto err_ioremap;
-	}
-
-	for (i = BAR_1; i < PCI_STD_NUM_BARS; i++) {
-		if (pci_resource_len(pdev, i) == 0)
-			continue;
-		if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
-			adapter->hw.io_base = pci_resource_start(pdev, i);
-			break;
-		}
-	}
-
-	netdev->netdev_ops = &ixgb_netdev_ops;
-	ixgb_set_ethtool_ops(netdev);
-	netdev->watchdog_timeo = 5 * HZ;
-	netif_napi_add(netdev, &adapter->napi, ixgb_clean);
-
-	strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
-
-	adapter->bd_number = cards_found;
-	adapter->link_speed = 0;
-	adapter->link_duplex = 0;
-
-	/* setup the private structure */
-
-	err = ixgb_sw_init(adapter);
-	if (err)
-		goto err_sw_init;
-
-	netdev->hw_features = NETIF_F_SG |
-			   NETIF_F_TSO |
-			   NETIF_F_HW_CSUM |
-			   NETIF_F_HW_VLAN_CTAG_TX |
-			   NETIF_F_HW_VLAN_CTAG_RX;
-	netdev->features = netdev->hw_features |
-			   NETIF_F_HW_VLAN_CTAG_FILTER;
-	netdev->hw_features |= NETIF_F_RXCSUM;
-
-	netdev->features |= NETIF_F_HIGHDMA;
-	netdev->vlan_features |= NETIF_F_HIGHDMA;
-
-	/* MTU range: 68 - 16114 */
-	netdev->min_mtu = ETH_MIN_MTU;
-	netdev->max_mtu = IXGB_MAX_JUMBO_FRAME_SIZE - ETH_HLEN;
-
-	/* make sure the EEPROM is good */
-
-	if (!ixgb_validate_eeprom_checksum(&adapter->hw)) {
-		netif_err(adapter, probe, adapter->netdev,
-			  "The EEPROM Checksum Is Not Valid\n");
-		err = -EIO;
-		goto err_eeprom;
-	}
-
-	ixgb_get_ee_mac_addr(&adapter->hw, addr);
-	eth_hw_addr_set(netdev, addr);
-
-	if (!is_valid_ether_addr(netdev->dev_addr)) {
-		netif_err(adapter, probe, adapter->netdev, "Invalid MAC Address\n");
-		err = -EIO;
-		goto err_eeprom;
-	}
-
-	adapter->part_num = ixgb_get_ee_pba_number(&adapter->hw);
-
-	timer_setup(&adapter->watchdog_timer, ixgb_watchdog, 0);
-
-	INIT_WORK(&adapter->tx_timeout_task, ixgb_tx_timeout_task);
-
-	strcpy(netdev->name, "eth%d");
-	err = register_netdev(netdev);
-	if (err)
-		goto err_register;
-
-	/* carrier off reporting is important to ethtool even BEFORE open */
-	netif_carrier_off(netdev);
-
-	netif_info(adapter, probe, adapter->netdev,
-		   "Intel(R) PRO/10GbE Network Connection\n");
-	ixgb_check_options(adapter);
-	/* reset the hardware with the new settings */
-
-	ixgb_reset(adapter);
-
-	cards_found++;
-	return 0;
-
-err_register:
-err_sw_init:
-err_eeprom:
-	iounmap(adapter->hw.hw_addr);
-err_ioremap:
-	free_netdev(netdev);
-err_alloc_etherdev:
-	pci_release_regions(pdev);
-err_request_regions:
-err_dma_mask:
-	pci_disable_device(pdev);
-	return err;
-}
-
-/**
- * ixgb_remove - Device Removal Routine
- * @pdev: PCI device information struct
- *
- * ixgb_remove is called by the PCI subsystem to alert the driver
- * that it should release a PCI device.  The could be caused by a
- * Hot-Plug event, or because the driver is going to be removed from
- * memory.
- **/
-
-static void
-ixgb_remove(struct pci_dev *pdev)
-{
-	struct net_device *netdev = pci_get_drvdata(pdev);
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-
-	cancel_work_sync(&adapter->tx_timeout_task);
-
-	unregister_netdev(netdev);
-
-	iounmap(adapter->hw.hw_addr);
-	pci_release_regions(pdev);
-
-	free_netdev(netdev);
-	pci_disable_device(pdev);
-}
-
-/**
- * ixgb_sw_init - Initialize general software structures (struct ixgb_adapter)
- * @adapter: board private structure to initialize
- *
- * ixgb_sw_init initializes the Adapter private data structure.
- * Fields are initialized based on PCI device information and
- * OS network device settings (MTU size).
- **/
-
-static int
-ixgb_sw_init(struct ixgb_adapter *adapter)
-{
-	struct ixgb_hw *hw = &adapter->hw;
-	struct net_device *netdev = adapter->netdev;
-	struct pci_dev *pdev = adapter->pdev;
-
-	/* PCI config space info */
-
-	hw->vendor_id = pdev->vendor;
-	hw->device_id = pdev->device;
-	hw->subsystem_vendor_id = pdev->subsystem_vendor;
-	hw->subsystem_id = pdev->subsystem_device;
-
-	hw->max_frame_size = netdev->mtu + ENET_HEADER_SIZE + ENET_FCS_LENGTH;
-	adapter->rx_buffer_len = hw->max_frame_size + 8; /* + 8 for errata */
-
-	if ((hw->device_id == IXGB_DEVICE_ID_82597EX) ||
-	    (hw->device_id == IXGB_DEVICE_ID_82597EX_CX4) ||
-	    (hw->device_id == IXGB_DEVICE_ID_82597EX_LR) ||
-	    (hw->device_id == IXGB_DEVICE_ID_82597EX_SR))
-		hw->mac_type = ixgb_82597;
-	else {
-		/* should never have loaded on this device */
-		netif_err(adapter, probe, adapter->netdev, "unsupported device id\n");
-	}
-
-	/* enable flow control to be programmed */
-	hw->fc.send_xon = 1;
-
-	set_bit(__IXGB_DOWN, &adapter->flags);
-	return 0;
-}
-
-/**
- * ixgb_open - Called when a network interface is made active
- * @netdev: network interface device structure
- *
- * Returns 0 on success, negative value on failure
- *
- * The open entry point is called when a network interface is made
- * active by the system (IFF_UP).  At this point all resources needed
- * for transmit and receive operations are allocated, the interrupt
- * handler is registered with the OS, the watchdog timer is started,
- * and the stack is notified that the interface is ready.
- **/
-
-static int
-ixgb_open(struct net_device *netdev)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	int err;
-
-	/* allocate transmit descriptors */
-	err = ixgb_setup_tx_resources(adapter);
-	if (err)
-		goto err_setup_tx;
-
-	netif_carrier_off(netdev);
-
-	/* allocate receive descriptors */
-
-	err = ixgb_setup_rx_resources(adapter);
-	if (err)
-		goto err_setup_rx;
-
-	err = ixgb_up(adapter);
-	if (err)
-		goto err_up;
-
-	netif_start_queue(netdev);
-
-	return 0;
-
-err_up:
-	ixgb_free_rx_resources(adapter);
-err_setup_rx:
-	ixgb_free_tx_resources(adapter);
-err_setup_tx:
-	ixgb_reset(adapter);
-
-	return err;
-}
-
-/**
- * ixgb_close - Disables a network interface
- * @netdev: network interface device structure
- *
- * Returns 0, this is not allowed to fail
- *
- * The close entry point is called when an interface is de-activated
- * by the OS.  The hardware is still under the drivers control, but
- * needs to be disabled.  A global MAC reset is issued to stop the
- * hardware, and all transmit and receive resources are freed.
- **/
-
-static int
-ixgb_close(struct net_device *netdev)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-
-	ixgb_down(adapter, true);
-
-	ixgb_free_tx_resources(adapter);
-	ixgb_free_rx_resources(adapter);
-
-	return 0;
-}
-
-/**
- * ixgb_setup_tx_resources - allocate Tx resources (Descriptors)
- * @adapter: board private structure
- *
- * Return 0 on success, negative on failure
- **/
-
-int
-ixgb_setup_tx_resources(struct ixgb_adapter *adapter)
-{
-	struct ixgb_desc_ring *txdr = &adapter->tx_ring;
-	struct pci_dev *pdev = adapter->pdev;
-	int size;
-
-	size = sizeof(struct ixgb_buffer) * txdr->count;
-	txdr->buffer_info = vzalloc(size);
-	if (!txdr->buffer_info)
-		return -ENOMEM;
-
-	/* round up to nearest 4K */
-
-	txdr->size = txdr->count * sizeof(struct ixgb_tx_desc);
-	txdr->size = ALIGN(txdr->size, 4096);
-
-	txdr->desc = dma_alloc_coherent(&pdev->dev, txdr->size, &txdr->dma,
-					GFP_KERNEL);
-	if (!txdr->desc) {
-		vfree(txdr->buffer_info);
-		return -ENOMEM;
-	}
-
-	txdr->next_to_use = 0;
-	txdr->next_to_clean = 0;
-
-	return 0;
-}
-
-/**
- * ixgb_configure_tx - Configure 82597 Transmit Unit after Reset.
- * @adapter: board private structure
- *
- * Configure the Tx unit of the MAC after a reset.
- **/
-
-static void
-ixgb_configure_tx(struct ixgb_adapter *adapter)
-{
-	u64 tdba = adapter->tx_ring.dma;
-	u32 tdlen = adapter->tx_ring.count * sizeof(struct ixgb_tx_desc);
-	u32 tctl;
-	struct ixgb_hw *hw = &adapter->hw;
-
-	/* Setup the Base and Length of the Tx Descriptor Ring
-	 * tx_ring.dma can be either a 32 or 64 bit value
-	 */
-
-	IXGB_WRITE_REG(hw, TDBAL, (tdba & 0x00000000ffffffffULL));
-	IXGB_WRITE_REG(hw, TDBAH, (tdba >> 32));
-
-	IXGB_WRITE_REG(hw, TDLEN, tdlen);
-
-	/* Setup the HW Tx Head and Tail descriptor pointers */
-
-	IXGB_WRITE_REG(hw, TDH, 0);
-	IXGB_WRITE_REG(hw, TDT, 0);
-
-	/* don't set up txdctl, it induces performance problems if configured
-	 * incorrectly */
-	/* Set the Tx Interrupt Delay register */
-
-	IXGB_WRITE_REG(hw, TIDV, adapter->tx_int_delay);
-
-	/* Program the Transmit Control Register */
-
-	tctl = IXGB_TCTL_TCE | IXGB_TCTL_TXEN | IXGB_TCTL_TPDE;
-	IXGB_WRITE_REG(hw, TCTL, tctl);
-
-	/* Setup Transmit Descriptor Settings for this adapter */
-	adapter->tx_cmd_type =
-		IXGB_TX_DESC_TYPE |
-		(adapter->tx_int_delay_enable ? IXGB_TX_DESC_CMD_IDE : 0);
-}
-
-/**
- * ixgb_setup_rx_resources - allocate Rx resources (Descriptors)
- * @adapter: board private structure
- *
- * Returns 0 on success, negative on failure
- **/
-
-int
-ixgb_setup_rx_resources(struct ixgb_adapter *adapter)
-{
-	struct ixgb_desc_ring *rxdr = &adapter->rx_ring;
-	struct pci_dev *pdev = adapter->pdev;
-	int size;
-
-	size = sizeof(struct ixgb_buffer) * rxdr->count;
-	rxdr->buffer_info = vzalloc(size);
-	if (!rxdr->buffer_info)
-		return -ENOMEM;
-
-	/* Round up to nearest 4K */
-
-	rxdr->size = rxdr->count * sizeof(struct ixgb_rx_desc);
-	rxdr->size = ALIGN(rxdr->size, 4096);
-
-	rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma,
-					GFP_KERNEL);
-
-	if (!rxdr->desc) {
-		vfree(rxdr->buffer_info);
-		return -ENOMEM;
-	}
-
-	rxdr->next_to_clean = 0;
-	rxdr->next_to_use = 0;
-
-	return 0;
-}
-
-/**
- * ixgb_setup_rctl - configure the receive control register
- * @adapter: Board private structure
- **/
-
-static void
-ixgb_setup_rctl(struct ixgb_adapter *adapter)
-{
-	u32 rctl;
-
-	rctl = IXGB_READ_REG(&adapter->hw, RCTL);
-
-	rctl &= ~(3 << IXGB_RCTL_MO_SHIFT);
-
-	rctl |=
-		IXGB_RCTL_BAM | IXGB_RCTL_RDMTS_1_2 |
-		IXGB_RCTL_RXEN | IXGB_RCTL_CFF |
-		(adapter->hw.mc_filter_type << IXGB_RCTL_MO_SHIFT);
-
-	rctl |= IXGB_RCTL_SECRC;
-
-	if (adapter->rx_buffer_len <= IXGB_RXBUFFER_2048)
-		rctl |= IXGB_RCTL_BSIZE_2048;
-	else if (adapter->rx_buffer_len <= IXGB_RXBUFFER_4096)
-		rctl |= IXGB_RCTL_BSIZE_4096;
-	else if (adapter->rx_buffer_len <= IXGB_RXBUFFER_8192)
-		rctl |= IXGB_RCTL_BSIZE_8192;
-	else if (adapter->rx_buffer_len <= IXGB_RXBUFFER_16384)
-		rctl |= IXGB_RCTL_BSIZE_16384;
-
-	IXGB_WRITE_REG(&adapter->hw, RCTL, rctl);
-}
-
-/**
- * ixgb_configure_rx - Configure 82597 Receive Unit after Reset.
- * @adapter: board private structure
- *
- * Configure the Rx unit of the MAC after a reset.
- **/
-
-static void
-ixgb_configure_rx(struct ixgb_adapter *adapter)
-{
-	u64 rdba = adapter->rx_ring.dma;
-	u32 rdlen = adapter->rx_ring.count * sizeof(struct ixgb_rx_desc);
-	struct ixgb_hw *hw = &adapter->hw;
-	u32 rctl;
-	u32 rxcsum;
-
-	/* make sure receives are disabled while setting up the descriptors */
-
-	rctl = IXGB_READ_REG(hw, RCTL);
-	IXGB_WRITE_REG(hw, RCTL, rctl & ~IXGB_RCTL_RXEN);
-
-	/* set the Receive Delay Timer Register */
-
-	IXGB_WRITE_REG(hw, RDTR, adapter->rx_int_delay);
-
-	/* Setup the Base and Length of the Rx Descriptor Ring */
-
-	IXGB_WRITE_REG(hw, RDBAL, (rdba & 0x00000000ffffffffULL));
-	IXGB_WRITE_REG(hw, RDBAH, (rdba >> 32));
-
-	IXGB_WRITE_REG(hw, RDLEN, rdlen);
-
-	/* Setup the HW Rx Head and Tail Descriptor Pointers */
-	IXGB_WRITE_REG(hw, RDH, 0);
-	IXGB_WRITE_REG(hw, RDT, 0);
-
-	/* due to the hardware errata with RXDCTL, we are unable to use any of
-	 * the performance enhancing features of it without causing other
-	 * subtle bugs, some of the bugs could include receive length
-	 * corruption at high data rates (WTHRESH > 0) and/or receive
-	 * descriptor ring irregularites (particularly in hardware cache) */
-	IXGB_WRITE_REG(hw, RXDCTL, 0);
-
-	/* Enable Receive Checksum Offload for TCP and UDP */
-	if (adapter->rx_csum) {
-		rxcsum = IXGB_READ_REG(hw, RXCSUM);
-		rxcsum |= IXGB_RXCSUM_TUOFL;
-		IXGB_WRITE_REG(hw, RXCSUM, rxcsum);
-	}
-
-	/* Enable Receives */
-
-	IXGB_WRITE_REG(hw, RCTL, rctl);
-}
-
-/**
- * ixgb_free_tx_resources - Free Tx Resources
- * @adapter: board private structure
- *
- * Free all transmit software resources
- **/
-
-void
-ixgb_free_tx_resources(struct ixgb_adapter *adapter)
-{
-	struct pci_dev *pdev = adapter->pdev;
-
-	ixgb_clean_tx_ring(adapter);
-
-	vfree(adapter->tx_ring.buffer_info);
-	adapter->tx_ring.buffer_info = NULL;
-
-	dma_free_coherent(&pdev->dev, adapter->tx_ring.size,
-			  adapter->tx_ring.desc, adapter->tx_ring.dma);
-
-	adapter->tx_ring.desc = NULL;
-}
-
-static void
-ixgb_unmap_and_free_tx_resource(struct ixgb_adapter *adapter,
-                                struct ixgb_buffer *buffer_info)
-{
-	if (buffer_info->dma) {
-		if (buffer_info->mapped_as_page)
-			dma_unmap_page(&adapter->pdev->dev, buffer_info->dma,
-				       buffer_info->length, DMA_TO_DEVICE);
-		else
-			dma_unmap_single(&adapter->pdev->dev, buffer_info->dma,
-					 buffer_info->length, DMA_TO_DEVICE);
-		buffer_info->dma = 0;
-	}
-
-	if (buffer_info->skb) {
-		dev_kfree_skb_any(buffer_info->skb);
-		buffer_info->skb = NULL;
-	}
-	buffer_info->time_stamp = 0;
-	/* these fields must always be initialized in tx
-	 * buffer_info->length = 0;
-	 * buffer_info->next_to_watch = 0; */
-}
-
-/**
- * ixgb_clean_tx_ring - Free Tx Buffers
- * @adapter: board private structure
- **/
-
-static void
-ixgb_clean_tx_ring(struct ixgb_adapter *adapter)
-{
-	struct ixgb_desc_ring *tx_ring = &adapter->tx_ring;
-	struct ixgb_buffer *buffer_info;
-	unsigned long size;
-	unsigned int i;
-
-	/* Free all the Tx ring sk_buffs */
-
-	for (i = 0; i < tx_ring->count; i++) {
-		buffer_info = &tx_ring->buffer_info[i];
-		ixgb_unmap_and_free_tx_resource(adapter, buffer_info);
-	}
-
-	size = sizeof(struct ixgb_buffer) * tx_ring->count;
-	memset(tx_ring->buffer_info, 0, size);
-
-	/* Zero out the descriptor ring */
-
-	memset(tx_ring->desc, 0, tx_ring->size);
-
-	tx_ring->next_to_use = 0;
-	tx_ring->next_to_clean = 0;
-
-	IXGB_WRITE_REG(&adapter->hw, TDH, 0);
-	IXGB_WRITE_REG(&adapter->hw, TDT, 0);
-}
-
-/**
- * ixgb_free_rx_resources - Free Rx Resources
- * @adapter: board private structure
- *
- * Free all receive software resources
- **/
-
-void
-ixgb_free_rx_resources(struct ixgb_adapter *adapter)
-{
-	struct ixgb_desc_ring *rx_ring = &adapter->rx_ring;
-	struct pci_dev *pdev = adapter->pdev;
-
-	ixgb_clean_rx_ring(adapter);
-
-	vfree(rx_ring->buffer_info);
-	rx_ring->buffer_info = NULL;
-
-	dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
-			  rx_ring->dma);
-
-	rx_ring->desc = NULL;
-}
-
-/**
- * ixgb_clean_rx_ring - Free Rx Buffers
- * @adapter: board private structure
- **/
-
-static void
-ixgb_clean_rx_ring(struct ixgb_adapter *adapter)
-{
-	struct ixgb_desc_ring *rx_ring = &adapter->rx_ring;
-	struct ixgb_buffer *buffer_info;
-	struct pci_dev *pdev = adapter->pdev;
-	unsigned long size;
-	unsigned int i;
-
-	/* Free all the Rx ring sk_buffs */
-
-	for (i = 0; i < rx_ring->count; i++) {
-		buffer_info = &rx_ring->buffer_info[i];
-		if (buffer_info->dma) {
-			dma_unmap_single(&pdev->dev,
-					 buffer_info->dma,
-					 buffer_info->length,
-					 DMA_FROM_DEVICE);
-			buffer_info->dma = 0;
-			buffer_info->length = 0;
-		}
-
-		if (buffer_info->skb) {
-			dev_kfree_skb(buffer_info->skb);
-			buffer_info->skb = NULL;
-		}
-	}
-
-	size = sizeof(struct ixgb_buffer) * rx_ring->count;
-	memset(rx_ring->buffer_info, 0, size);
-
-	/* Zero out the descriptor ring */
-
-	memset(rx_ring->desc, 0, rx_ring->size);
-
-	rx_ring->next_to_clean = 0;
-	rx_ring->next_to_use = 0;
-
-	IXGB_WRITE_REG(&adapter->hw, RDH, 0);
-	IXGB_WRITE_REG(&adapter->hw, RDT, 0);
-}
-
-/**
- * ixgb_set_mac - Change the Ethernet Address of the NIC
- * @netdev: network interface device structure
- * @p: pointer to an address structure
- *
- * Returns 0 on success, negative on failure
- **/
-
-static int
-ixgb_set_mac(struct net_device *netdev, void *p)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	struct sockaddr *addr = p;
-
-	if (!is_valid_ether_addr(addr->sa_data))
-		return -EADDRNOTAVAIL;
-
-	eth_hw_addr_set(netdev, addr->sa_data);
-
-	ixgb_rar_set(&adapter->hw, addr->sa_data, 0);
-
-	return 0;
-}
-
-/**
- * ixgb_set_multi - Multicast and Promiscuous mode set
- * @netdev: network interface device structure
- *
- * The set_multi entry point is called whenever the multicast address
- * list or the network interface flags are updated.  This routine is
- * responsible for configuring the hardware for proper multicast,
- * promiscuous mode, and all-multi behavior.
- **/
-
-static void
-ixgb_set_multi(struct net_device *netdev)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	struct ixgb_hw *hw = &adapter->hw;
-	struct netdev_hw_addr *ha;
-	u32 rctl;
-
-	/* Check for Promiscuous and All Multicast modes */
-
-	rctl = IXGB_READ_REG(hw, RCTL);
-
-	if (netdev->flags & IFF_PROMISC) {
-		rctl |= (IXGB_RCTL_UPE | IXGB_RCTL_MPE);
-		/* disable VLAN filtering */
-		rctl &= ~IXGB_RCTL_CFIEN;
-		rctl &= ~IXGB_RCTL_VFE;
-	} else {
-		if (netdev->flags & IFF_ALLMULTI) {
-			rctl |= IXGB_RCTL_MPE;
-			rctl &= ~IXGB_RCTL_UPE;
-		} else {
-			rctl &= ~(IXGB_RCTL_UPE | IXGB_RCTL_MPE);
-		}
-		/* enable VLAN filtering */
-		rctl |= IXGB_RCTL_VFE;
-		rctl &= ~IXGB_RCTL_CFIEN;
-	}
-
-	if (netdev_mc_count(netdev) > IXGB_MAX_NUM_MULTICAST_ADDRESSES) {
-		rctl |= IXGB_RCTL_MPE;
-		IXGB_WRITE_REG(hw, RCTL, rctl);
-	} else {
-		u8 *mta = kmalloc_array(ETH_ALEN,
-				        IXGB_MAX_NUM_MULTICAST_ADDRESSES,
-				        GFP_ATOMIC);
-		u8 *addr;
-		if (!mta)
-			goto alloc_failed;
-
-		IXGB_WRITE_REG(hw, RCTL, rctl);
-
-		addr = mta;
-		netdev_for_each_mc_addr(ha, netdev) {
-			memcpy(addr, ha->addr, ETH_ALEN);
-			addr += ETH_ALEN;
-		}
-
-		ixgb_mc_addr_list_update(hw, mta, netdev_mc_count(netdev), 0);
-		kfree(mta);
-	}
-
-alloc_failed:
-	if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX)
-		ixgb_vlan_strip_enable(adapter);
-	else
-		ixgb_vlan_strip_disable(adapter);
-
-}
-
-/**
- * ixgb_watchdog - Timer Call-back
- * @t: pointer to timer_list containing our private info pointer
- **/
-
-static void
-ixgb_watchdog(struct timer_list *t)
-{
-	struct ixgb_adapter *adapter = from_timer(adapter, t, watchdog_timer);
-	struct net_device *netdev = adapter->netdev;
-	struct ixgb_desc_ring *txdr = &adapter->tx_ring;
-
-	ixgb_check_for_link(&adapter->hw);
-
-	if (ixgb_check_for_bad_link(&adapter->hw)) {
-		/* force the reset path */
-		netif_stop_queue(netdev);
-	}
-
-	if (adapter->hw.link_up) {
-		if (!netif_carrier_ok(netdev)) {
-			netdev_info(netdev,
-				    "NIC Link is Up 10 Gbps Full Duplex, Flow Control: %s\n",
-				    (adapter->hw.fc.type == ixgb_fc_full) ?
-				    "RX/TX" :
-				    (adapter->hw.fc.type == ixgb_fc_rx_pause) ?
-				     "RX" :
-				    (adapter->hw.fc.type == ixgb_fc_tx_pause) ?
-				    "TX" : "None");
-			adapter->link_speed = 10000;
-			adapter->link_duplex = FULL_DUPLEX;
-			netif_carrier_on(netdev);
-		}
-	} else {
-		if (netif_carrier_ok(netdev)) {
-			adapter->link_speed = 0;
-			adapter->link_duplex = 0;
-			netdev_info(netdev, "NIC Link is Down\n");
-			netif_carrier_off(netdev);
-		}
-	}
-
-	ixgb_update_stats(adapter);
-
-	if (!netif_carrier_ok(netdev)) {
-		if (IXGB_DESC_UNUSED(txdr) + 1 < txdr->count) {
-			/* We've lost link, so the controller stops DMA,
-			 * but we've got queued Tx work that's never going
-			 * to get done, so reset controller to flush Tx.
-			 * (Do the reset outside of interrupt context). */
-			schedule_work(&adapter->tx_timeout_task);
-			/* return immediately since reset is imminent */
-			return;
-		}
-	}
-
-	/* Force detection of hung controller every watchdog period */
-	adapter->detect_tx_hung = true;
-
-	/* generate an interrupt to force clean up of any stragglers */
-	IXGB_WRITE_REG(&adapter->hw, ICS, IXGB_INT_TXDW);
-
-	/* Reset the timer */
-	mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
-}
-
-#define IXGB_TX_FLAGS_CSUM		0x00000001
-#define IXGB_TX_FLAGS_VLAN		0x00000002
-#define IXGB_TX_FLAGS_TSO		0x00000004
-
-static int
-ixgb_tso(struct ixgb_adapter *adapter, struct sk_buff *skb)
-{
-	struct ixgb_context_desc *context_desc;
-	unsigned int i;
-	u8 ipcss, ipcso, tucss, tucso, hdr_len;
-	u16 ipcse, tucse, mss;
-
-	if (likely(skb_is_gso(skb))) {
-		struct ixgb_buffer *buffer_info;
-		struct iphdr *iph;
-		int err;
-
-		err = skb_cow_head(skb, 0);
-		if (err < 0)
-			return err;
-
-		hdr_len = skb_tcp_all_headers(skb);
-		mss = skb_shinfo(skb)->gso_size;
-		iph = ip_hdr(skb);
-		iph->tot_len = 0;
-		iph->check = 0;
-		tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
-							 iph->daddr, 0,
-							 IPPROTO_TCP, 0);
-		ipcss = skb_network_offset(skb);
-		ipcso = (void *)&(iph->check) - (void *)skb->data;
-		ipcse = skb_transport_offset(skb) - 1;
-		tucss = skb_transport_offset(skb);
-		tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data;
-		tucse = 0;
-
-		i = adapter->tx_ring.next_to_use;
-		context_desc = IXGB_CONTEXT_DESC(adapter->tx_ring, i);
-		buffer_info = &adapter->tx_ring.buffer_info[i];
-		WARN_ON(buffer_info->dma != 0);
-
-		context_desc->ipcss = ipcss;
-		context_desc->ipcso = ipcso;
-		context_desc->ipcse = cpu_to_le16(ipcse);
-		context_desc->tucss = tucss;
-		context_desc->tucso = tucso;
-		context_desc->tucse = cpu_to_le16(tucse);
-		context_desc->mss = cpu_to_le16(mss);
-		context_desc->hdr_len = hdr_len;
-		context_desc->status = 0;
-		context_desc->cmd_type_len = cpu_to_le32(
-						  IXGB_CONTEXT_DESC_TYPE
-						| IXGB_CONTEXT_DESC_CMD_TSE
-						| IXGB_CONTEXT_DESC_CMD_IP
-						| IXGB_CONTEXT_DESC_CMD_TCP
-						| IXGB_CONTEXT_DESC_CMD_IDE
-						| (skb->len - (hdr_len)));
-
-
-		if (++i == adapter->tx_ring.count) i = 0;
-		adapter->tx_ring.next_to_use = i;
-
-		return 1;
-	}
-
-	return 0;
-}
-
-static bool
-ixgb_tx_csum(struct ixgb_adapter *adapter, struct sk_buff *skb)
-{
-	struct ixgb_context_desc *context_desc;
-	unsigned int i;
-	u8 css, cso;
-
-	if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
-		struct ixgb_buffer *buffer_info;
-		css = skb_checksum_start_offset(skb);
-		cso = css + skb->csum_offset;
-
-		i = adapter->tx_ring.next_to_use;
-		context_desc = IXGB_CONTEXT_DESC(adapter->tx_ring, i);
-		buffer_info = &adapter->tx_ring.buffer_info[i];
-		WARN_ON(buffer_info->dma != 0);
-
-		context_desc->tucss = css;
-		context_desc->tucso = cso;
-		context_desc->tucse = 0;
-		/* zero out any previously existing data in one instruction */
-		*(u32 *)&(context_desc->ipcss) = 0;
-		context_desc->status = 0;
-		context_desc->hdr_len = 0;
-		context_desc->mss = 0;
-		context_desc->cmd_type_len =
-			cpu_to_le32(IXGB_CONTEXT_DESC_TYPE
-				    | IXGB_TX_DESC_CMD_IDE);
-
-		if (++i == adapter->tx_ring.count) i = 0;
-		adapter->tx_ring.next_to_use = i;
-
-		return true;
-	}
-
-	return false;
-}
-
-#define IXGB_MAX_TXD_PWR	14
-#define IXGB_MAX_DATA_PER_TXD	(1<<IXGB_MAX_TXD_PWR)
-
-static int
-ixgb_tx_map(struct ixgb_adapter *adapter, struct sk_buff *skb,
-	    unsigned int first)
-{
-	struct ixgb_desc_ring *tx_ring = &adapter->tx_ring;
-	struct pci_dev *pdev = adapter->pdev;
-	struct ixgb_buffer *buffer_info;
-	int len = skb_headlen(skb);
-	unsigned int offset = 0, size, count = 0, i;
-	unsigned int mss = skb_shinfo(skb)->gso_size;
-	unsigned int nr_frags = skb_shinfo(skb)->nr_frags;
-	unsigned int f;
-
-	i = tx_ring->next_to_use;
-
-	while (len) {
-		buffer_info = &tx_ring->buffer_info[i];
-		size = min(len, IXGB_MAX_DATA_PER_TXD);
-		/* Workaround for premature desc write-backs
-		 * in TSO mode.  Append 4-byte sentinel desc */
-		if (unlikely(mss && !nr_frags && size == len && size > 8))
-			size -= 4;
-
-		buffer_info->length = size;
-		WARN_ON(buffer_info->dma != 0);
-		buffer_info->time_stamp = jiffies;
-		buffer_info->mapped_as_page = false;
-		buffer_info->dma = dma_map_single(&pdev->dev,
-						  skb->data + offset,
-						  size, DMA_TO_DEVICE);
-		if (dma_mapping_error(&pdev->dev, buffer_info->dma))
-			goto dma_error;
-		buffer_info->next_to_watch = 0;
-
-		len -= size;
-		offset += size;
-		count++;
-		if (len) {
-			i++;
-			if (i == tx_ring->count)
-				i = 0;
-		}
-	}
-
-	for (f = 0; f < nr_frags; f++) {
-		const skb_frag_t *frag = &skb_shinfo(skb)->frags[f];
-		len = skb_frag_size(frag);
-		offset = 0;
-
-		while (len) {
-			i++;
-			if (i == tx_ring->count)
-				i = 0;
-
-			buffer_info = &tx_ring->buffer_info[i];
-			size = min(len, IXGB_MAX_DATA_PER_TXD);
-
-			/* Workaround for premature desc write-backs
-			 * in TSO mode.  Append 4-byte sentinel desc */
-			if (unlikely(mss && (f == (nr_frags - 1))
-				     && size == len && size > 8))
-				size -= 4;
-
-			buffer_info->length = size;
-			buffer_info->time_stamp = jiffies;
-			buffer_info->mapped_as_page = true;
-			buffer_info->dma =
-				skb_frag_dma_map(&pdev->dev, frag, offset, size,
-						 DMA_TO_DEVICE);
-			if (dma_mapping_error(&pdev->dev, buffer_info->dma))
-				goto dma_error;
-			buffer_info->next_to_watch = 0;
-
-			len -= size;
-			offset += size;
-			count++;
-		}
-	}
-	tx_ring->buffer_info[i].skb = skb;
-	tx_ring->buffer_info[first].next_to_watch = i;
-
-	return count;
-
-dma_error:
-	dev_err(&pdev->dev, "TX DMA map failed\n");
-	buffer_info->dma = 0;
-	if (count)
-		count--;
-
-	while (count--) {
-		if (i==0)
-			i += tx_ring->count;
-		i--;
-		buffer_info = &tx_ring->buffer_info[i];
-		ixgb_unmap_and_free_tx_resource(adapter, buffer_info);
-	}
-
-	return 0;
-}
-
-static void
-ixgb_tx_queue(struct ixgb_adapter *adapter, int count, int vlan_id,int tx_flags)
-{
-	struct ixgb_desc_ring *tx_ring = &adapter->tx_ring;
-	struct ixgb_tx_desc *tx_desc = NULL;
-	struct ixgb_buffer *buffer_info;
-	u32 cmd_type_len = adapter->tx_cmd_type;
-	u8 status = 0;
-	u8 popts = 0;
-	unsigned int i;
-
-	if (tx_flags & IXGB_TX_FLAGS_TSO) {
-		cmd_type_len |= IXGB_TX_DESC_CMD_TSE;
-		popts |= (IXGB_TX_DESC_POPTS_IXSM | IXGB_TX_DESC_POPTS_TXSM);
-	}
-
-	if (tx_flags & IXGB_TX_FLAGS_CSUM)
-		popts |= IXGB_TX_DESC_POPTS_TXSM;
-
-	if (tx_flags & IXGB_TX_FLAGS_VLAN)
-		cmd_type_len |= IXGB_TX_DESC_CMD_VLE;
-
-	i = tx_ring->next_to_use;
-
-	while (count--) {
-		buffer_info = &tx_ring->buffer_info[i];
-		tx_desc = IXGB_TX_DESC(*tx_ring, i);
-		tx_desc->buff_addr = cpu_to_le64(buffer_info->dma);
-		tx_desc->cmd_type_len =
-			cpu_to_le32(cmd_type_len | buffer_info->length);
-		tx_desc->status = status;
-		tx_desc->popts = popts;
-		tx_desc->vlan = cpu_to_le16(vlan_id);
-
-		if (++i == tx_ring->count) i = 0;
-	}
-
-	tx_desc->cmd_type_len |=
-		cpu_to_le32(IXGB_TX_DESC_CMD_EOP | IXGB_TX_DESC_CMD_RS);
-
-	/* Force memory writes to complete before letting h/w
-	 * know there are new descriptors to fetch.  (Only
-	 * applicable for weak-ordered memory model archs,
-	 * such as IA-64). */
-	wmb();
-
-	tx_ring->next_to_use = i;
-	IXGB_WRITE_REG(&adapter->hw, TDT, i);
-}
-
-static int __ixgb_maybe_stop_tx(struct net_device *netdev, int size)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	struct ixgb_desc_ring *tx_ring = &adapter->tx_ring;
-
-	netif_stop_queue(netdev);
-	/* Herbert's original patch had:
-	 *  smp_mb__after_netif_stop_queue();
-	 * but since that doesn't exist yet, just open code it. */
-	smp_mb();
-
-	/* We need to check again in a case another CPU has just
-	 * made room available. */
-	if (likely(IXGB_DESC_UNUSED(tx_ring) < size))
-		return -EBUSY;
-
-	/* A reprieve! */
-	netif_start_queue(netdev);
-	++adapter->restart_queue;
-	return 0;
-}
-
-static int ixgb_maybe_stop_tx(struct net_device *netdev,
-                              struct ixgb_desc_ring *tx_ring, int size)
-{
-	if (likely(IXGB_DESC_UNUSED(tx_ring) >= size))
-		return 0;
-	return __ixgb_maybe_stop_tx(netdev, size);
-}
-
-
-/* Tx Descriptors needed, worst case */
-#define TXD_USE_COUNT(S) (((S) >> IXGB_MAX_TXD_PWR) + \
-			 (((S) & (IXGB_MAX_DATA_PER_TXD - 1)) ? 1 : 0))
-#define DESC_NEEDED TXD_USE_COUNT(IXGB_MAX_DATA_PER_TXD) /* skb->date */ + \
-	MAX_SKB_FRAGS * TXD_USE_COUNT(PAGE_SIZE) + 1 /* for context */ \
-	+ 1 /* one more needed for sentinel TSO workaround */
-
-static netdev_tx_t
-ixgb_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	unsigned int first;
-	unsigned int tx_flags = 0;
-	int vlan_id = 0;
-	int count = 0;
-	int tso;
-
-	if (test_bit(__IXGB_DOWN, &adapter->flags)) {
-		dev_kfree_skb_any(skb);
-		return NETDEV_TX_OK;
-	}
-
-	if (skb->len <= 0) {
-		dev_kfree_skb_any(skb);
-		return NETDEV_TX_OK;
-	}
-
-	if (unlikely(ixgb_maybe_stop_tx(netdev, &adapter->tx_ring,
-                     DESC_NEEDED)))
-		return NETDEV_TX_BUSY;
-
-	if (skb_vlan_tag_present(skb)) {
-		tx_flags |= IXGB_TX_FLAGS_VLAN;
-		vlan_id = skb_vlan_tag_get(skb);
-	}
-
-	first = adapter->tx_ring.next_to_use;
-
-	tso = ixgb_tso(adapter, skb);
-	if (tso < 0) {
-		dev_kfree_skb_any(skb);
-		return NETDEV_TX_OK;
-	}
-
-	if (likely(tso))
-		tx_flags |= IXGB_TX_FLAGS_TSO;
-	else if (ixgb_tx_csum(adapter, skb))
-		tx_flags |= IXGB_TX_FLAGS_CSUM;
-
-	count = ixgb_tx_map(adapter, skb, first);
-
-	if (count) {
-		ixgb_tx_queue(adapter, count, vlan_id, tx_flags);
-		/* Make sure there is space in the ring for the next send. */
-		ixgb_maybe_stop_tx(netdev, &adapter->tx_ring, DESC_NEEDED);
-
-	} else {
-		dev_kfree_skb_any(skb);
-		adapter->tx_ring.buffer_info[first].time_stamp = 0;
-		adapter->tx_ring.next_to_use = first;
-	}
-
-	return NETDEV_TX_OK;
-}
-
-/**
- * ixgb_tx_timeout - Respond to a Tx Hang
- * @netdev: network interface device structure
- * @txqueue: queue hanging (unused)
- **/
-
-static void
-ixgb_tx_timeout(struct net_device *netdev, unsigned int __always_unused txqueue)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-
-	/* Do the reset outside of interrupt context */
-	schedule_work(&adapter->tx_timeout_task);
-}
-
-static void
-ixgb_tx_timeout_task(struct work_struct *work)
-{
-	struct ixgb_adapter *adapter =
-		container_of(work, struct ixgb_adapter, tx_timeout_task);
-
-	adapter->tx_timeout_count++;
-	ixgb_down(adapter, true);
-	ixgb_up(adapter);
-}
-
-/**
- * ixgb_change_mtu - Change the Maximum Transfer Unit
- * @netdev: network interface device structure
- * @new_mtu: new value for maximum frame size
- *
- * Returns 0 on success, negative on failure
- **/
-
-static int
-ixgb_change_mtu(struct net_device *netdev, int new_mtu)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	int max_frame = new_mtu + ENET_HEADER_SIZE + ENET_FCS_LENGTH;
-
-	if (netif_running(netdev))
-		ixgb_down(adapter, true);
-
-	adapter->rx_buffer_len = max_frame + 8; /* + 8 for errata */
-
-	netdev->mtu = new_mtu;
-
-	if (netif_running(netdev))
-		ixgb_up(adapter);
-
-	return 0;
-}
-
-/**
- * ixgb_update_stats - Update the board statistics counters.
- * @adapter: board private structure
- **/
-
-void
-ixgb_update_stats(struct ixgb_adapter *adapter)
-{
-	struct net_device *netdev = adapter->netdev;
-	struct pci_dev *pdev = adapter->pdev;
-
-	/* Prevent stats update while adapter is being reset */
-	if (pci_channel_offline(pdev))
-		return;
-
-	if ((netdev->flags & IFF_PROMISC) || (netdev->flags & IFF_ALLMULTI) ||
-	   (netdev_mc_count(netdev) > IXGB_MAX_NUM_MULTICAST_ADDRESSES)) {
-		u64 multi = IXGB_READ_REG(&adapter->hw, MPRCL);
-		u32 bcast_l = IXGB_READ_REG(&adapter->hw, BPRCL);
-		u32 bcast_h = IXGB_READ_REG(&adapter->hw, BPRCH);
-		u64 bcast = ((u64)bcast_h << 32) | bcast_l;
-
-		multi |= ((u64)IXGB_READ_REG(&adapter->hw, MPRCH) << 32);
-		/* fix up multicast stats by removing broadcasts */
-		if (multi >= bcast)
-			multi -= bcast;
-
-		adapter->stats.mprcl += (multi & 0xFFFFFFFF);
-		adapter->stats.mprch += (multi >> 32);
-		adapter->stats.bprcl += bcast_l;
-		adapter->stats.bprch += bcast_h;
-	} else {
-		adapter->stats.mprcl += IXGB_READ_REG(&adapter->hw, MPRCL);
-		adapter->stats.mprch += IXGB_READ_REG(&adapter->hw, MPRCH);
-		adapter->stats.bprcl += IXGB_READ_REG(&adapter->hw, BPRCL);
-		adapter->stats.bprch += IXGB_READ_REG(&adapter->hw, BPRCH);
-	}
-	adapter->stats.tprl += IXGB_READ_REG(&adapter->hw, TPRL);
-	adapter->stats.tprh += IXGB_READ_REG(&adapter->hw, TPRH);
-	adapter->stats.gprcl += IXGB_READ_REG(&adapter->hw, GPRCL);
-	adapter->stats.gprch += IXGB_READ_REG(&adapter->hw, GPRCH);
-	adapter->stats.uprcl += IXGB_READ_REG(&adapter->hw, UPRCL);
-	adapter->stats.uprch += IXGB_READ_REG(&adapter->hw, UPRCH);
-	adapter->stats.vprcl += IXGB_READ_REG(&adapter->hw, VPRCL);
-	adapter->stats.vprch += IXGB_READ_REG(&adapter->hw, VPRCH);
-	adapter->stats.jprcl += IXGB_READ_REG(&adapter->hw, JPRCL);
-	adapter->stats.jprch += IXGB_READ_REG(&adapter->hw, JPRCH);
-	adapter->stats.gorcl += IXGB_READ_REG(&adapter->hw, GORCL);
-	adapter->stats.gorch += IXGB_READ_REG(&adapter->hw, GORCH);
-	adapter->stats.torl += IXGB_READ_REG(&adapter->hw, TORL);
-	adapter->stats.torh += IXGB_READ_REG(&adapter->hw, TORH);
-	adapter->stats.rnbc += IXGB_READ_REG(&adapter->hw, RNBC);
-	adapter->stats.ruc += IXGB_READ_REG(&adapter->hw, RUC);
-	adapter->stats.roc += IXGB_READ_REG(&adapter->hw, ROC);
-	adapter->stats.rlec += IXGB_READ_REG(&adapter->hw, RLEC);
-	adapter->stats.crcerrs += IXGB_READ_REG(&adapter->hw, CRCERRS);
-	adapter->stats.icbc += IXGB_READ_REG(&adapter->hw, ICBC);
-	adapter->stats.ecbc += IXGB_READ_REG(&adapter->hw, ECBC);
-	adapter->stats.mpc += IXGB_READ_REG(&adapter->hw, MPC);
-	adapter->stats.tptl += IXGB_READ_REG(&adapter->hw, TPTL);
-	adapter->stats.tpth += IXGB_READ_REG(&adapter->hw, TPTH);
-	adapter->stats.gptcl += IXGB_READ_REG(&adapter->hw, GPTCL);
-	adapter->stats.gptch += IXGB_READ_REG(&adapter->hw, GPTCH);
-	adapter->stats.bptcl += IXGB_READ_REG(&adapter->hw, BPTCL);
-	adapter->stats.bptch += IXGB_READ_REG(&adapter->hw, BPTCH);
-	adapter->stats.mptcl += IXGB_READ_REG(&adapter->hw, MPTCL);
-	adapter->stats.mptch += IXGB_READ_REG(&adapter->hw, MPTCH);
-	adapter->stats.uptcl += IXGB_READ_REG(&adapter->hw, UPTCL);
-	adapter->stats.uptch += IXGB_READ_REG(&adapter->hw, UPTCH);
-	adapter->stats.vptcl += IXGB_READ_REG(&adapter->hw, VPTCL);
-	adapter->stats.vptch += IXGB_READ_REG(&adapter->hw, VPTCH);
-	adapter->stats.jptcl += IXGB_READ_REG(&adapter->hw, JPTCL);
-	adapter->stats.jptch += IXGB_READ_REG(&adapter->hw, JPTCH);
-	adapter->stats.gotcl += IXGB_READ_REG(&adapter->hw, GOTCL);
-	adapter->stats.gotch += IXGB_READ_REG(&adapter->hw, GOTCH);
-	adapter->stats.totl += IXGB_READ_REG(&adapter->hw, TOTL);
-	adapter->stats.toth += IXGB_READ_REG(&adapter->hw, TOTH);
-	adapter->stats.dc += IXGB_READ_REG(&adapter->hw, DC);
-	adapter->stats.plt64c += IXGB_READ_REG(&adapter->hw, PLT64C);
-	adapter->stats.tsctc += IXGB_READ_REG(&adapter->hw, TSCTC);
-	adapter->stats.tsctfc += IXGB_READ_REG(&adapter->hw, TSCTFC);
-	adapter->stats.ibic += IXGB_READ_REG(&adapter->hw, IBIC);
-	adapter->stats.rfc += IXGB_READ_REG(&adapter->hw, RFC);
-	adapter->stats.lfc += IXGB_READ_REG(&adapter->hw, LFC);
-	adapter->stats.pfrc += IXGB_READ_REG(&adapter->hw, PFRC);
-	adapter->stats.pftc += IXGB_READ_REG(&adapter->hw, PFTC);
-	adapter->stats.mcfrc += IXGB_READ_REG(&adapter->hw, MCFRC);
-	adapter->stats.mcftc += IXGB_READ_REG(&adapter->hw, MCFTC);
-	adapter->stats.xonrxc += IXGB_READ_REG(&adapter->hw, XONRXC);
-	adapter->stats.xontxc += IXGB_READ_REG(&adapter->hw, XONTXC);
-	adapter->stats.xoffrxc += IXGB_READ_REG(&adapter->hw, XOFFRXC);
-	adapter->stats.xofftxc += IXGB_READ_REG(&adapter->hw, XOFFTXC);
-	adapter->stats.rjc += IXGB_READ_REG(&adapter->hw, RJC);
-
-	/* Fill out the OS statistics structure */
-
-	netdev->stats.rx_packets = adapter->stats.gprcl;
-	netdev->stats.tx_packets = adapter->stats.gptcl;
-	netdev->stats.rx_bytes = adapter->stats.gorcl;
-	netdev->stats.tx_bytes = adapter->stats.gotcl;
-	netdev->stats.multicast = adapter->stats.mprcl;
-	netdev->stats.collisions = 0;
-
-	/* ignore RLEC as it reports errors for padded (<64bytes) frames
-	 * with a length in the type/len field */
-	netdev->stats.rx_errors =
-	    /* adapter->stats.rnbc + */ adapter->stats.crcerrs +
-	    adapter->stats.ruc +
-	    adapter->stats.roc /*+ adapter->stats.rlec */  +
-	    adapter->stats.icbc +
-	    adapter->stats.ecbc + adapter->stats.mpc;
-
-	/* see above
-	 * netdev->stats.rx_length_errors = adapter->stats.rlec;
-	 */
-
-	netdev->stats.rx_crc_errors = adapter->stats.crcerrs;
-	netdev->stats.rx_fifo_errors = adapter->stats.mpc;
-	netdev->stats.rx_missed_errors = adapter->stats.mpc;
-	netdev->stats.rx_over_errors = adapter->stats.mpc;
-
-	netdev->stats.tx_errors = 0;
-	netdev->stats.rx_frame_errors = 0;
-	netdev->stats.tx_aborted_errors = 0;
-	netdev->stats.tx_carrier_errors = 0;
-	netdev->stats.tx_fifo_errors = 0;
-	netdev->stats.tx_heartbeat_errors = 0;
-	netdev->stats.tx_window_errors = 0;
-}
-
-/**
- * ixgb_intr - Interrupt Handler
- * @irq: interrupt number
- * @data: pointer to a network interface device structure
- **/
-
-static irqreturn_t
-ixgb_intr(int irq, void *data)
-{
-	struct net_device *netdev = data;
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	struct ixgb_hw *hw = &adapter->hw;
-	u32 icr = IXGB_READ_REG(hw, ICR);
-
-	if (unlikely(!icr))
-		return IRQ_NONE;  /* Not our interrupt */
-
-	if (unlikely(icr & (IXGB_INT_RXSEQ | IXGB_INT_LSC)))
-		if (!test_bit(__IXGB_DOWN, &adapter->flags))
-			mod_timer(&adapter->watchdog_timer, jiffies);
-
-	if (napi_schedule_prep(&adapter->napi)) {
-
-		/* Disable interrupts and register for poll. The flush
-		  of the posted write is intentionally left out.
-		*/
-
-		IXGB_WRITE_REG(&adapter->hw, IMC, ~0);
-		__napi_schedule(&adapter->napi);
-	}
-	return IRQ_HANDLED;
-}
-
-/**
- * ixgb_clean - NAPI Rx polling callback
- * @napi: napi struct pointer
- * @budget: max number of receives to clean
- **/
-
-static int
-ixgb_clean(struct napi_struct *napi, int budget)
-{
-	struct ixgb_adapter *adapter = container_of(napi, struct ixgb_adapter, napi);
-	int work_done = 0;
-
-	ixgb_clean_tx_irq(adapter);
-	ixgb_clean_rx_irq(adapter, &work_done, budget);
-
-	/* If budget not fully consumed, exit the polling mode */
-	if (work_done < budget) {
-		napi_complete_done(napi, work_done);
-		if (!test_bit(__IXGB_DOWN, &adapter->flags))
-			ixgb_irq_enable(adapter);
-	}
-
-	return work_done;
-}
-
-/**
- * ixgb_clean_tx_irq - Reclaim resources after transmit completes
- * @adapter: board private structure
- **/
-
-static bool
-ixgb_clean_tx_irq(struct ixgb_adapter *adapter)
-{
-	struct ixgb_desc_ring *tx_ring = &adapter->tx_ring;
-	struct net_device *netdev = adapter->netdev;
-	struct ixgb_tx_desc *tx_desc, *eop_desc;
-	struct ixgb_buffer *buffer_info;
-	unsigned int i, eop;
-	bool cleaned = false;
-
-	i = tx_ring->next_to_clean;
-	eop = tx_ring->buffer_info[i].next_to_watch;
-	eop_desc = IXGB_TX_DESC(*tx_ring, eop);
-
-	while (eop_desc->status & IXGB_TX_DESC_STATUS_DD) {
-
-		rmb(); /* read buffer_info after eop_desc */
-		for (cleaned = false; !cleaned; ) {
-			tx_desc = IXGB_TX_DESC(*tx_ring, i);
-			buffer_info = &tx_ring->buffer_info[i];
-
-			if (tx_desc->popts &
-			   (IXGB_TX_DESC_POPTS_TXSM |
-			    IXGB_TX_DESC_POPTS_IXSM))
-				adapter->hw_csum_tx_good++;
-
-			ixgb_unmap_and_free_tx_resource(adapter, buffer_info);
-
-			*(u32 *)&(tx_desc->status) = 0;
-
-			cleaned = (i == eop);
-			if (++i == tx_ring->count) i = 0;
-		}
-
-		eop = tx_ring->buffer_info[i].next_to_watch;
-		eop_desc = IXGB_TX_DESC(*tx_ring, eop);
-	}
-
-	tx_ring->next_to_clean = i;
-
-	if (unlikely(cleaned && netif_carrier_ok(netdev) &&
-		     IXGB_DESC_UNUSED(tx_ring) >= DESC_NEEDED)) {
-		/* Make sure that anybody stopping the queue after this
-		 * sees the new next_to_clean. */
-		smp_mb();
-
-		if (netif_queue_stopped(netdev) &&
-		    !(test_bit(__IXGB_DOWN, &adapter->flags))) {
-			netif_wake_queue(netdev);
-			++adapter->restart_queue;
-		}
-	}
-
-	if (adapter->detect_tx_hung) {
-		/* detect a transmit hang in hardware, this serializes the
-		 * check with the clearing of time_stamp and movement of i */
-		adapter->detect_tx_hung = false;
-		if (tx_ring->buffer_info[eop].time_stamp &&
-		   time_after(jiffies, tx_ring->buffer_info[eop].time_stamp + HZ)
-		   && !(IXGB_READ_REG(&adapter->hw, STATUS) &
-		        IXGB_STATUS_TXOFF)) {
-			/* detected Tx unit hang */
-			netif_err(adapter, drv, adapter->netdev,
-				  "Detected Tx Unit Hang\n"
-				  "  TDH                  <%x>\n"
-				  "  TDT                  <%x>\n"
-				  "  next_to_use          <%x>\n"
-				  "  next_to_clean        <%x>\n"
-				  "buffer_info[next_to_clean]\n"
-				  "  time_stamp           <%lx>\n"
-				  "  next_to_watch        <%x>\n"
-				  "  jiffies              <%lx>\n"
-				  "  next_to_watch.status <%x>\n",
-				  IXGB_READ_REG(&adapter->hw, TDH),
-				  IXGB_READ_REG(&adapter->hw, TDT),
-				  tx_ring->next_to_use,
-				  tx_ring->next_to_clean,
-				  tx_ring->buffer_info[eop].time_stamp,
-				  eop,
-				  jiffies,
-				  eop_desc->status);
-			netif_stop_queue(netdev);
-		}
-	}
-
-	return cleaned;
-}
-
-/**
- * ixgb_rx_checksum - Receive Checksum Offload for 82597.
- * @adapter: board private structure
- * @rx_desc: receive descriptor
- * @skb: socket buffer with received data
- **/
-
-static void
-ixgb_rx_checksum(struct ixgb_adapter *adapter,
-                 struct ixgb_rx_desc *rx_desc,
-                 struct sk_buff *skb)
-{
-	/* Ignore Checksum bit is set OR
-	 * TCP Checksum has not been calculated
-	 */
-	if ((rx_desc->status & IXGB_RX_DESC_STATUS_IXSM) ||
-	   (!(rx_desc->status & IXGB_RX_DESC_STATUS_TCPCS))) {
-		skb_checksum_none_assert(skb);
-		return;
-	}
-
-	/* At this point we know the hardware did the TCP checksum */
-	/* now look at the TCP checksum error bit */
-	if (rx_desc->errors & IXGB_RX_DESC_ERRORS_TCPE) {
-		/* let the stack verify checksum errors */
-		skb_checksum_none_assert(skb);
-		adapter->hw_csum_rx_error++;
-	} else {
-		/* TCP checksum is good */
-		skb->ip_summed = CHECKSUM_UNNECESSARY;
-		adapter->hw_csum_rx_good++;
-	}
-}
-
-/*
- * this should improve performance for small packets with large amounts
- * of reassembly being done in the stack
- */
-static void ixgb_check_copybreak(struct napi_struct *napi,
-				 struct ixgb_buffer *buffer_info,
-				 u32 length, struct sk_buff **skb)
-{
-	struct sk_buff *new_skb;
-
-	if (length > copybreak)
-		return;
-
-	new_skb = napi_alloc_skb(napi, length);
-	if (!new_skb)
-		return;
-
-	skb_copy_to_linear_data_offset(new_skb, -NET_IP_ALIGN,
-				       (*skb)->data - NET_IP_ALIGN,
-				       length + NET_IP_ALIGN);
-	/* save the skb in buffer_info as good */
-	buffer_info->skb = *skb;
-	*skb = new_skb;
-}
-
-/**
- * ixgb_clean_rx_irq - Send received data up the network stack,
- * @adapter: board private structure
- * @work_done: output pointer to amount of packets cleaned
- * @work_to_do: how much work we can complete
- **/
-
-static bool
-ixgb_clean_rx_irq(struct ixgb_adapter *adapter, int *work_done, int work_to_do)
-{
-	struct ixgb_desc_ring *rx_ring = &adapter->rx_ring;
-	struct net_device *netdev = adapter->netdev;
-	struct pci_dev *pdev = adapter->pdev;
-	struct ixgb_rx_desc *rx_desc, *next_rxd;
-	struct ixgb_buffer *buffer_info, *next_buffer, *next2_buffer;
-	u32 length;
-	unsigned int i, j;
-	int cleaned_count = 0;
-	bool cleaned = false;
-
-	i = rx_ring->next_to_clean;
-	rx_desc = IXGB_RX_DESC(*rx_ring, i);
-	buffer_info = &rx_ring->buffer_info[i];
-
-	while (rx_desc->status & IXGB_RX_DESC_STATUS_DD) {
-		struct sk_buff *skb;
-		u8 status;
-
-		if (*work_done >= work_to_do)
-			break;
-
-		(*work_done)++;
-		rmb();	/* read descriptor and rx_buffer_info after status DD */
-		status = rx_desc->status;
-		skb = buffer_info->skb;
-		buffer_info->skb = NULL;
-
-		prefetch(skb->data - NET_IP_ALIGN);
-
-		if (++i == rx_ring->count)
-			i = 0;
-		next_rxd = IXGB_RX_DESC(*rx_ring, i);
-		prefetch(next_rxd);
-
-		j = i + 1;
-		if (j == rx_ring->count)
-			j = 0;
-		next2_buffer = &rx_ring->buffer_info[j];
-		prefetch(next2_buffer);
-
-		next_buffer = &rx_ring->buffer_info[i];
-
-		cleaned = true;
-		cleaned_count++;
-
-		dma_unmap_single(&pdev->dev,
-				 buffer_info->dma,
-				 buffer_info->length,
-				 DMA_FROM_DEVICE);
-		buffer_info->dma = 0;
-
-		length = le16_to_cpu(rx_desc->length);
-		rx_desc->length = 0;
-
-		if (unlikely(!(status & IXGB_RX_DESC_STATUS_EOP))) {
-
-			/* All receives must fit into a single buffer */
-
-			pr_debug("Receive packet consumed multiple buffers length<%x>\n",
-				 length);
-
-			dev_kfree_skb_irq(skb);
-			goto rxdesc_done;
-		}
-
-		if (unlikely(rx_desc->errors &
-		    (IXGB_RX_DESC_ERRORS_CE | IXGB_RX_DESC_ERRORS_SE |
-		     IXGB_RX_DESC_ERRORS_P | IXGB_RX_DESC_ERRORS_RXE))) {
-			dev_kfree_skb_irq(skb);
-			goto rxdesc_done;
-		}
-
-		ixgb_check_copybreak(&adapter->napi, buffer_info, length, &skb);
-
-		/* Good Receive */
-		skb_put(skb, length);
-
-		/* Receive Checksum Offload */
-		ixgb_rx_checksum(adapter, rx_desc, skb);
-
-		skb->protocol = eth_type_trans(skb, netdev);
-		if (status & IXGB_RX_DESC_STATUS_VP)
-			__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
-				       le16_to_cpu(rx_desc->special));
-
-		netif_receive_skb(skb);
-
-rxdesc_done:
-		/* clean up descriptor, might be written over by hw */
-		rx_desc->status = 0;
-
-		/* return some buffers to hardware, one at a time is too slow */
-		if (unlikely(cleaned_count >= IXGB_RX_BUFFER_WRITE)) {
-			ixgb_alloc_rx_buffers(adapter, cleaned_count);
-			cleaned_count = 0;
-		}
-
-		/* use prefetched values */
-		rx_desc = next_rxd;
-		buffer_info = next_buffer;
-	}
-
-	rx_ring->next_to_clean = i;
-
-	cleaned_count = IXGB_DESC_UNUSED(rx_ring);
-	if (cleaned_count)
-		ixgb_alloc_rx_buffers(adapter, cleaned_count);
-
-	return cleaned;
-}
-
-/**
- * ixgb_alloc_rx_buffers - Replace used receive buffers
- * @adapter: address of board private structure
- * @cleaned_count: how many buffers to allocate
- **/
-
-static void
-ixgb_alloc_rx_buffers(struct ixgb_adapter *adapter, int cleaned_count)
-{
-	struct ixgb_desc_ring *rx_ring = &adapter->rx_ring;
-	struct net_device *netdev = adapter->netdev;
-	struct pci_dev *pdev = adapter->pdev;
-	struct ixgb_rx_desc *rx_desc;
-	struct ixgb_buffer *buffer_info;
-	struct sk_buff *skb;
-	unsigned int i;
-	long cleancount;
-
-	i = rx_ring->next_to_use;
-	buffer_info = &rx_ring->buffer_info[i];
-	cleancount = IXGB_DESC_UNUSED(rx_ring);
-
-
-	/* leave three descriptors unused */
-	while (--cleancount > 2 && cleaned_count--) {
-		/* recycle! its good for you */
-		skb = buffer_info->skb;
-		if (skb) {
-			skb_trim(skb, 0);
-			goto map_skb;
-		}
-
-		skb = netdev_alloc_skb_ip_align(netdev, adapter->rx_buffer_len);
-		if (unlikely(!skb)) {
-			/* Better luck next round */
-			adapter->alloc_rx_buff_failed++;
-			break;
-		}
-
-		buffer_info->skb = skb;
-		buffer_info->length = adapter->rx_buffer_len;
-map_skb:
-		buffer_info->dma = dma_map_single(&pdev->dev,
-		                                  skb->data,
-		                                  adapter->rx_buffer_len,
-						  DMA_FROM_DEVICE);
-		if (dma_mapping_error(&pdev->dev, buffer_info->dma)) {
-			adapter->alloc_rx_buff_failed++;
-			break;
-		}
-
-		rx_desc = IXGB_RX_DESC(*rx_ring, i);
-		rx_desc->buff_addr = cpu_to_le64(buffer_info->dma);
-		/* guarantee DD bit not set now before h/w gets descriptor
-		 * this is the rest of the workaround for h/w double
-		 * writeback. */
-		rx_desc->status = 0;
-
-
-		if (++i == rx_ring->count)
-			i = 0;
-		buffer_info = &rx_ring->buffer_info[i];
-	}
-
-	if (likely(rx_ring->next_to_use != i)) {
-		rx_ring->next_to_use = i;
-		if (unlikely(i-- == 0))
-			i = (rx_ring->count - 1);
-
-		/* Force memory writes to complete before letting h/w
-		 * know there are new descriptors to fetch.  (Only
-		 * applicable for weak-ordered memory model archs, such
-		 * as IA-64). */
-		wmb();
-		IXGB_WRITE_REG(&adapter->hw, RDT, i);
-	}
-}
-
-static void
-ixgb_vlan_strip_enable(struct ixgb_adapter *adapter)
-{
-	u32 ctrl;
-
-	/* enable VLAN tag insert/strip */
-	ctrl = IXGB_READ_REG(&adapter->hw, CTRL0);
-	ctrl |= IXGB_CTRL0_VME;
-	IXGB_WRITE_REG(&adapter->hw, CTRL0, ctrl);
-}
-
-static void
-ixgb_vlan_strip_disable(struct ixgb_adapter *adapter)
-{
-	u32 ctrl;
-
-	/* disable VLAN tag insert/strip */
-	ctrl = IXGB_READ_REG(&adapter->hw, CTRL0);
-	ctrl &= ~IXGB_CTRL0_VME;
-	IXGB_WRITE_REG(&adapter->hw, CTRL0, ctrl);
-}
-
-static int
-ixgb_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	u32 vfta, index;
-
-	/* add VID to filter table */
-
-	index = (vid >> 5) & 0x7F;
-	vfta = IXGB_READ_REG_ARRAY(&adapter->hw, VFTA, index);
-	vfta |= (1 << (vid & 0x1F));
-	ixgb_write_vfta(&adapter->hw, index, vfta);
-	set_bit(vid, adapter->active_vlans);
-
-	return 0;
-}
-
-static int
-ixgb_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	u32 vfta, index;
-
-	/* remove VID from filter table */
-
-	index = (vid >> 5) & 0x7F;
-	vfta = IXGB_READ_REG_ARRAY(&adapter->hw, VFTA, index);
-	vfta &= ~(1 << (vid & 0x1F));
-	ixgb_write_vfta(&adapter->hw, index, vfta);
-	clear_bit(vid, adapter->active_vlans);
-
-	return 0;
-}
-
-static void
-ixgb_restore_vlan(struct ixgb_adapter *adapter)
-{
-	u16 vid;
-
-	for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID)
-		ixgb_vlan_rx_add_vid(adapter->netdev, htons(ETH_P_8021Q), vid);
-}
-
-/**
- * ixgb_io_error_detected - called when PCI error is detected
- * @pdev:    pointer to pci device with error
- * @state:   pci channel state after error
- *
- * This callback is called by the PCI subsystem whenever
- * a PCI bus error is detected.
- */
-static pci_ers_result_t ixgb_io_error_detected(struct pci_dev *pdev,
-                                               pci_channel_state_t state)
-{
-	struct net_device *netdev = pci_get_drvdata(pdev);
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-
-	netif_device_detach(netdev);
-
-	if (state == pci_channel_io_perm_failure)
-		return PCI_ERS_RESULT_DISCONNECT;
-
-	if (netif_running(netdev))
-		ixgb_down(adapter, true);
-
-	pci_disable_device(pdev);
-
-	/* Request a slot reset. */
-	return PCI_ERS_RESULT_NEED_RESET;
-}
-
-/**
- * ixgb_io_slot_reset - called after the pci bus has been reset.
- * @pdev: pointer to pci device with error
- *
- * This callback is called after the PCI bus has been reset.
- * Basically, this tries to restart the card from scratch.
- * This is a shortened version of the device probe/discovery code,
- * it resembles the first-half of the ixgb_probe() routine.
- */
-static pci_ers_result_t ixgb_io_slot_reset(struct pci_dev *pdev)
-{
-	struct net_device *netdev = pci_get_drvdata(pdev);
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-	u8 addr[ETH_ALEN];
-
-	if (pci_enable_device(pdev)) {
-		netif_err(adapter, probe, adapter->netdev,
-			  "Cannot re-enable PCI device after reset\n");
-		return PCI_ERS_RESULT_DISCONNECT;
-	}
-
-	/* Perform card reset only on one instance of the card */
-	if (0 != PCI_FUNC (pdev->devfn))
-		return PCI_ERS_RESULT_RECOVERED;
-
-	pci_set_master(pdev);
-
-	netif_carrier_off(netdev);
-	netif_stop_queue(netdev);
-	ixgb_reset(adapter);
-
-	/* Make sure the EEPROM is good */
-	if (!ixgb_validate_eeprom_checksum(&adapter->hw)) {
-		netif_err(adapter, probe, adapter->netdev,
-			  "After reset, the EEPROM checksum is not valid\n");
-		return PCI_ERS_RESULT_DISCONNECT;
-	}
-	ixgb_get_ee_mac_addr(&adapter->hw, addr);
-	eth_hw_addr_set(netdev, addr);
-	memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
-
-	if (!is_valid_ether_addr(netdev->perm_addr)) {
-		netif_err(adapter, probe, adapter->netdev,
-			  "After reset, invalid MAC address\n");
-		return PCI_ERS_RESULT_DISCONNECT;
-	}
-
-	return PCI_ERS_RESULT_RECOVERED;
-}
-
-/**
- * ixgb_io_resume - called when its OK to resume normal operations
- * @pdev: pointer to pci device with error
- *
- * The error recovery driver tells us that its OK to resume
- * normal operation. Implementation resembles the second-half
- * of the ixgb_probe() routine.
- */
-static void ixgb_io_resume(struct pci_dev *pdev)
-{
-	struct net_device *netdev = pci_get_drvdata(pdev);
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-
-	pci_set_master(pdev);
-
-	if (netif_running(netdev)) {
-		if (ixgb_up(adapter)) {
-			pr_err("can't bring device back up after reset\n");
-			return;
-		}
-	}
-
-	netif_device_attach(netdev);
-	mod_timer(&adapter->watchdog_timer, jiffies);
-}
-
-/* ixgb_main.c */

drivers/net/ethernet/intel/ixgb/ixgb_osdep.h

-/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright(c) 1999 - 2008 Intel Corporation. */
-
-/* glue for the OS independent part of ixgb
- * includes register access macros
- */
-
-#ifndef _IXGB_OSDEP_H_
-#define _IXGB_OSDEP_H_
-
-#include <linux/types.h>
-#include <linux/delay.h>
-#include <asm/io.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <linux/if_ether.h>
-
-#undef ASSERT
-#define ASSERT(x)	BUG_ON(!(x))
-
-#define ENTER() pr_debug("%s\n", __func__);
-
-#define IXGB_WRITE_REG(a, reg, value) ( \
-	writel((value), ((a)->hw_addr + IXGB_##reg)))
-
-#define IXGB_READ_REG(a, reg) ( \
-	readl((a)->hw_addr + IXGB_##reg))
-
-#define IXGB_WRITE_REG_ARRAY(a, reg, offset, value) ( \
-	writel((value), ((a)->hw_addr + IXGB_##reg + ((offset) << 2))))
-
-#define IXGB_READ_REG_ARRAY(a, reg, offset) ( \
-	readl((a)->hw_addr + IXGB_##reg + ((offset) << 2)))
-
-#define IXGB_WRITE_FLUSH(a) IXGB_READ_REG(a, STATUS)
-
-#define IXGB_MEMCPY memcpy
-
-#endif /* _IXGB_OSDEP_H_ */

drivers/net/ethernet/intel/ixgb/ixgb_param.c

-// SPDX-License-Identifier: GPL-2.0
-/* Copyright(c) 1999 - 2008 Intel Corporation. */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include "ixgb.h"
-
-/* This is the only thing that needs to be changed to adjust the
- * maximum number of ports that the driver can manage.
- */
-
-#define IXGB_MAX_NIC 8
-
-#define OPTION_UNSET	-1
-#define OPTION_DISABLED 0
-#define OPTION_ENABLED  1
-
-/* All parameters are treated the same, as an integer array of values.
- * This macro just reduces the need to repeat the same declaration code
- * over and over (plus this helps to avoid typo bugs).
- */
-
-#define IXGB_PARAM_INIT { [0 ... IXGB_MAX_NIC] = OPTION_UNSET }
-#define IXGB_PARAM(X, desc)					\
-	static int X[IXGB_MAX_NIC+1]		\
-		= IXGB_PARAM_INIT;				\
-	static unsigned int num_##X = 0;			\
-	module_param_array_named(X, X, int, &num_##X, 0);	\
-	MODULE_PARM_DESC(X, desc);
-
-/* Transmit Descriptor Count
- *
- * Valid Range: 64-4096
- *
- * Default Value: 256
- */
-
-IXGB_PARAM(TxDescriptors, "Number of transmit descriptors");
-
-/* Receive Descriptor Count
- *
- * Valid Range: 64-4096
- *
- * Default Value: 1024
- */
-
-IXGB_PARAM(RxDescriptors, "Number of receive descriptors");
-
-/* User Specified Flow Control Override
- *
- * Valid Range: 0-3
- *  - 0 - No Flow Control
- *  - 1 - Rx only, respond to PAUSE frames but do not generate them
- *  - 2 - Tx only, generate PAUSE frames but ignore them on receive
- *  - 3 - Full Flow Control Support
- *
- * Default Value: 2 - Tx only (silicon bug avoidance)
- */
-
-IXGB_PARAM(FlowControl, "Flow Control setting");
-
-/* XsumRX - Receive Checksum Offload Enable/Disable
- *
- * Valid Range: 0, 1
- *  - 0 - disables all checksum offload
- *  - 1 - enables receive IP/TCP/UDP checksum offload
- *        on 82597 based NICs
- *
- * Default Value: 1
- */
-
-IXGB_PARAM(XsumRX, "Disable or enable Receive Checksum offload");
-
-/* Transmit Interrupt Delay in units of 0.8192 microseconds
- *
- * Valid Range: 0-65535
- *
- * Default Value: 32
- */
-
-IXGB_PARAM(TxIntDelay, "Transmit Interrupt Delay");
-
-/* Receive Interrupt Delay in units of 0.8192 microseconds
- *
- * Valid Range: 0-65535
- *
- * Default Value: 72
- */
-
-IXGB_PARAM(RxIntDelay, "Receive Interrupt Delay");
-
-/* Receive Flow control high threshold (when we send a pause frame)
- * (FCRTH)
- *
- * Valid Range: 1,536 - 262,136 (0x600 - 0x3FFF8, 8 byte granularity)
- *
- * Default Value: 196,608 (0x30000)
- */
-
-IXGB_PARAM(RxFCHighThresh, "Receive Flow Control High Threshold");
-
-/* Receive Flow control low threshold (when we send a resume frame)
- * (FCRTL)
- *
- * Valid Range: 64 - 262,136 (0x40 - 0x3FFF8, 8 byte granularity)
- *              must be less than high threshold by at least 8 bytes
- *
- * Default Value:  163,840 (0x28000)
- */
-
-IXGB_PARAM(RxFCLowThresh, "Receive Flow Control Low Threshold");
-
-/* Flow control request timeout (how long to pause the link partner's tx)
- * (PAP 15:0)
- *
- * Valid Range: 1 - 65535
- *
- * Default Value:  65535 (0xffff) (we'll send an xon if we recover)
- */
-
-IXGB_PARAM(FCReqTimeout, "Flow Control Request Timeout");
-
-/* Interrupt Delay Enable
- *
- * Valid Range: 0, 1
- *
- *  - 0 - disables transmit interrupt delay
- *  - 1 - enables transmmit interrupt delay
- *
- * Default Value: 1
- */
-
-IXGB_PARAM(IntDelayEnable, "Transmit Interrupt Delay Enable");
-
-
-#define DEFAULT_TIDV	   		     32
-#define MAX_TIDV			 0xFFFF
-#define MIN_TIDV			      0
-
-#define DEFAULT_RDTR		   	     72
-#define MAX_RDTR			 0xFFFF
-#define MIN_RDTR			      0
-
-#define DEFAULT_FCRTL	  		0x28000
-#define DEFAULT_FCRTH			0x30000
-#define MIN_FCRTL			      0
-#define MAX_FCRTL			0x3FFE8
-#define MIN_FCRTH			      8
-#define MAX_FCRTH			0x3FFF0
-
-#define MIN_FCPAUSE			      1
-#define MAX_FCPAUSE			 0xffff
-#define DEFAULT_FCPAUSE		  	 0xFFFF /* this may be too long */
-
-struct ixgb_option {
-	enum { enable_option, range_option, list_option } type;
-	const char *name;
-	const char *err;
-	int def;
-	union {
-		struct {	/* range_option info */
-			int min;
-			int max;
-		} r;
-		struct {	/* list_option info */
-			int nr;
-			const struct ixgb_opt_list {
-				int i;
-				const char *str;
-			} *p;
-		} l;
-	} arg;
-};
-
-static int
-ixgb_validate_option(unsigned int *value, const struct ixgb_option *opt)
-{
-	if (*value == OPTION_UNSET) {
-		*value = opt->def;
-		return 0;
-	}
-
-	switch (opt->type) {
-	case enable_option:
-		switch (*value) {
-		case OPTION_ENABLED:
-			pr_info("%s Enabled\n", opt->name);
-			return 0;
-		case OPTION_DISABLED:
-			pr_info("%s Disabled\n", opt->name);
-			return 0;
-		}
-		break;
-	case range_option:
-		if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
-			pr_info("%s set to %i\n", opt->name, *value);
-			return 0;
-		}
-		break;
-	case list_option: {
-		int i;
-		const struct ixgb_opt_list *ent;
-
-		for (i = 0; i < opt->arg.l.nr; i++) {
-			ent = &opt->arg.l.p[i];
-			if (*value == ent->i) {
-				if (ent->str[0] != '\0')
-					pr_info("%s\n", ent->str);
-				return 0;
-			}
-		}
-	}
-		break;
-	default:
-		BUG();
-	}
-
-	pr_info("Invalid %s specified (%i) %s\n", opt->name, *value, opt->err);
-	*value = opt->def;
-	return -1;
-}
-
-/**
- * ixgb_check_options - Range Checking for Command Line Parameters
- * @adapter: board private structure
- *
- * This routine checks all command line parameters for valid user
- * input.  If an invalid value is given, or if no user specified
- * value exists, a default value is used.  The final value is stored
- * in a variable in the adapter structure.
- **/
-
-void
-ixgb_check_options(struct ixgb_adapter *adapter)
-{
-	int bd = adapter->bd_number;
-	if (bd >= IXGB_MAX_NIC) {
-		pr_notice("Warning: no configuration for board #%i\n", bd);
-		pr_notice("Using defaults for all values\n");
-	}
-
-	{ /* Transmit Descriptor Count */
-		static const struct ixgb_option opt = {
-			.type = range_option,
-			.name = "Transmit Descriptors",
-			.err  = "using default of " __MODULE_STRING(DEFAULT_TXD),
-			.def  = DEFAULT_TXD,
-			.arg  = { .r = { .min = MIN_TXD,
-					 .max = MAX_TXD}}
-		};
-		struct ixgb_desc_ring *tx_ring = &adapter->tx_ring;
-
-		if (num_TxDescriptors > bd) {
-			tx_ring->count = TxDescriptors[bd];
-			ixgb_validate_option(&tx_ring->count, &opt);
-		} else {
-			tx_ring->count = opt.def;
-		}
-		tx_ring->count = ALIGN(tx_ring->count, IXGB_REQ_TX_DESCRIPTOR_MULTIPLE);
-	}
-	{ /* Receive Descriptor Count */
-		static const struct ixgb_option opt = {
-			.type = range_option,
-			.name = "Receive Descriptors",
-			.err  = "using default of " __MODULE_STRING(DEFAULT_RXD),
-			.def  = DEFAULT_RXD,
-			.arg  = { .r = { .min = MIN_RXD,
-					 .max = MAX_RXD}}
-		};
-		struct ixgb_desc_ring *rx_ring = &adapter->rx_ring;
-
-		if (num_RxDescriptors > bd) {
-			rx_ring->count = RxDescriptors[bd];
-			ixgb_validate_option(&rx_ring->count, &opt);
-		} else {
-			rx_ring->count = opt.def;
-		}
-		rx_ring->count = ALIGN(rx_ring->count, IXGB_REQ_RX_DESCRIPTOR_MULTIPLE);
-	}
-	{ /* Receive Checksum Offload Enable */
-		static const struct ixgb_option opt = {
-			.type = enable_option,
-			.name = "Receive Checksum Offload",
-			.err  = "defaulting to Enabled",
-			.def  = OPTION_ENABLED
-		};
-
-		if (num_XsumRX > bd) {
-			unsigned int rx_csum = XsumRX[bd];
-			ixgb_validate_option(&rx_csum, &opt);
-			adapter->rx_csum = rx_csum;
-		} else {
-			adapter->rx_csum = opt.def;
-		}
-	}
-	{ /* Flow Control */
-
-		static const struct ixgb_opt_list fc_list[] = {
-		       { ixgb_fc_none, "Flow Control Disabled" },
-		       { ixgb_fc_rx_pause, "Flow Control Receive Only" },
-		       { ixgb_fc_tx_pause, "Flow Control Transmit Only" },
-		       { ixgb_fc_full, "Flow Control Enabled" },
-		       { ixgb_fc_default, "Flow Control Hardware Default" }
-		};
-
-		static const struct ixgb_option opt = {
-			.type = list_option,
-			.name = "Flow Control",
-			.err  = "reading default settings from EEPROM",
-			.def  = ixgb_fc_tx_pause,
-			.arg  = { .l = { .nr = ARRAY_SIZE(fc_list),
-					 .p = fc_list }}
-		};
-
-		if (num_FlowControl > bd) {
-			unsigned int fc = FlowControl[bd];
-			ixgb_validate_option(&fc, &opt);
-			adapter->hw.fc.type = fc;
-		} else {
-			adapter->hw.fc.type = opt.def;
-		}
-	}
-	{ /* Receive Flow Control High Threshold */
-		static const struct ixgb_option opt = {
-			.type = range_option,
-			.name = "Rx Flow Control High Threshold",
-			.err  = "using default of " __MODULE_STRING(DEFAULT_FCRTH),
-			.def  = DEFAULT_FCRTH,
-			.arg  = { .r = { .min = MIN_FCRTH,
-					 .max = MAX_FCRTH}}
-		};
-
-		if (num_RxFCHighThresh > bd) {
-			adapter->hw.fc.high_water = RxFCHighThresh[bd];
-			ixgb_validate_option(&adapter->hw.fc.high_water, &opt);
-		} else {
-			adapter->hw.fc.high_water = opt.def;
-		}
-		if (!(adapter->hw.fc.type & ixgb_fc_tx_pause) )
-			pr_info("Ignoring RxFCHighThresh when no RxFC\n");
-	}
-	{ /* Receive Flow Control Low Threshold */
-		static const struct ixgb_option opt = {
-			.type = range_option,
-			.name = "Rx Flow Control Low Threshold",
-			.err  = "using default of " __MODULE_STRING(DEFAULT_FCRTL),
-			.def  = DEFAULT_FCRTL,
-			.arg  = { .r = { .min = MIN_FCRTL,
-					 .max = MAX_FCRTL}}
-		};
-
-		if (num_RxFCLowThresh > bd) {
-			adapter->hw.fc.low_water = RxFCLowThresh[bd];
-			ixgb_validate_option(&adapter->hw.fc.low_water, &opt);
-		} else {
-			adapter->hw.fc.low_water = opt.def;
-		}
-		if (!(adapter->hw.fc.type & ixgb_fc_tx_pause) )
-			pr_info("Ignoring RxFCLowThresh when no RxFC\n");
-	}
-	{ /* Flow Control Pause Time Request*/
-		static const struct ixgb_option opt = {
-			.type = range_option,
-			.name = "Flow Control Pause Time Request",
-			.err  = "using default of "__MODULE_STRING(DEFAULT_FCPAUSE),
-			.def  = DEFAULT_FCPAUSE,
-			.arg = { .r = { .min = MIN_FCPAUSE,
-					.max = MAX_FCPAUSE}}
-		};
-
-		if (num_FCReqTimeout > bd) {
-			unsigned int pause_time = FCReqTimeout[bd];
-			ixgb_validate_option(&pause_time, &opt);
-			adapter->hw.fc.pause_time = pause_time;
-		} else {
-			adapter->hw.fc.pause_time = opt.def;
-		}
-		if (!(adapter->hw.fc.type & ixgb_fc_tx_pause) )
-			pr_info("Ignoring FCReqTimeout when no RxFC\n");
-	}
-	/* high low and spacing check for rx flow control thresholds */
-	if (adapter->hw.fc.type & ixgb_fc_tx_pause) {
-		/* high must be greater than low */
-		if (adapter->hw.fc.high_water < (adapter->hw.fc.low_water + 8)) {
-			/* set defaults */
-			pr_info("RxFCHighThresh must be >= (RxFCLowThresh + 8), Using Defaults\n");
-			adapter->hw.fc.high_water = DEFAULT_FCRTH;
-			adapter->hw.fc.low_water  = DEFAULT_FCRTL;
-		}
-	}
-	{ /* Receive Interrupt Delay */
-		static const struct ixgb_option opt = {
-			.type = range_option,
-			.name = "Receive Interrupt Delay",
-			.err  = "using default of " __MODULE_STRING(DEFAULT_RDTR),
-			.def  = DEFAULT_RDTR,
-			.arg  = { .r = { .min = MIN_RDTR,
-					 .max = MAX_RDTR}}
-		};
-
-		if (num_RxIntDelay > bd) {
-			adapter->rx_int_delay = RxIntDelay[bd];
-			ixgb_validate_option(&adapter->rx_int_delay, &opt);
-		} else {
-			adapter->rx_int_delay = opt.def;
-		}
-	}
-	{ /* Transmit Interrupt Delay */
-		static const struct ixgb_option opt = {
-			.type = range_option,
-			.name = "Transmit Interrupt Delay",
-			.err  = "using default of " __MODULE_STRING(DEFAULT_TIDV),
-			.def  = DEFAULT_TIDV,
-			.arg  = { .r = { .min = MIN_TIDV,
-					 .max = MAX_TIDV}}
-		};
-
-		if (num_TxIntDelay > bd) {
-			adapter->tx_int_delay = TxIntDelay[bd];
-			ixgb_validate_option(&adapter->tx_int_delay, &opt);
-		} else {
-			adapter->tx_int_delay = opt.def;
-		}
-	}
-
-	{ /* Transmit Interrupt Delay Enable */
-		static const struct ixgb_option opt = {
-			.type = enable_option,
-			.name = "Tx Interrupt Delay Enable",
-			.err  = "defaulting to Enabled",
-			.def  = OPTION_ENABLED
-		};
-
-		if (num_IntDelayEnable > bd) {
-			unsigned int ide = IntDelayEnable[bd];
-			ixgb_validate_option(&ide, &opt);
-			adapter->tx_int_delay_enable = ide;
-		} else {
-			adapter->tx_int_delay_enable = opt.def;
-		}
-	}
-}