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Installation Notes Broadcom tg3 Linux Driver Version 3.129d 01/25/2013 Broadcom Corporation 5300 California Avenue Irvine, California 92617 Copyright (c) 2004 - 2013 Broadcom Corporation All rights reserved Table of Contents ================= Introduction Limitations Packaging Driver Build Options Installing Source RPM Package Building Driver From TAR File Driver Settings Driver Defaults Sensor Support Unloading and Removing Driver Driver Messages Introduction ============ This file describes the tg3 Linux driver for the Broadcom NetXtreme 10/100/1000 Mbps PCI/PCI-X/PCI Express Ethernet Network Controllers. The latest driver is in the latest 3.x Linux kernel. It can also be downloaded from http://www.broadcom.com as a source package, but is generally not necessary to do so if you are using the latest 3.x upstream kernel from http://www.kernel.org or one of the latest vendor kernels from Red Hat, SuSE, or others. The tg3 driver from the Broadcom package is almost identical to the tg3 driver in the latest 3.x upstream Linux kernel. It includes some additional kernel compatible code to allow it to compile on older 2.6 and some 2.4 kernels. The version number is also similar but generally has a one letter suffix at the end, (e.g. 3.55b) to distinguish it from the in-kernel tg3 driver. The next few sections on packaging, compiling, and installation apply mostly to the Broadcom driver package only. Limitations =========== The current version of the driver has been tested on 2.4.x kernels starting from 2.4.24 and all 2.6.x/3.x kernels. The driver may not compile on kernels older than 2.4.24. Testing is concentrated on i386 and x86_64 architectures. Only limited testing has been done on some other architectures such as powerpc and sparc64. Minor changes to some source files and Makefile may be needed on some kernels. Forcing 1 Gigabit speed in a copper environment is not supported and may result in connection issues with certain switches. SLES 11 Considerations ====================== Starting with SLES 11, all modules not compiled by Novell will refuse to load through modprobe by default. Externally compiled modules can be loaded if the "allow_unsupported_modules" flag is toggled in /etc/modprobe.d/unsupported-modules, however this will render your kernel and whole system unsupportable through Novell. Please refer to the SLES 11 release notes for more details. Packaging ========= To replace an older previously installed or in-kernel tg3 driver, follow the instructions below. The driver package from http://www.broadcom.com is released in two packaging formats: source RPM and compressed tar formats. The file names for the two packages are tg3-<version>.src.rpm and tg3-<version>.tar.gz respectively. Identical source files to build the driver are included in both packages. Driver Build Options ==================== This version of the tg3 driver contains support for Energy Efficient Ethernet. The feature is on by default but can be disabled at compile time by adding "TG3_EXTRA_DEFS=TG3_NO_EEE" to the make command line. Installing Source RPM Package ============================= The following are general guidelines for installing the driver. 1. Install the source RPM package: rpm -ivh tg3-<version>.src.rpm 2. CD to the RPM path and build the binary driver for your kernel: cd /usr/src/{redhat,OpenLinux,turbo,packages,rpm ..} rpm -bb SPECS/tg3.spec or rpmbuild -bb SPECS/tg3.spec (for RPM version 4.x.x) Note that the RPM path is different for different Linux distributions. The driver will be compiled for the running kernel by default. To build the driver for a kernel different than the running one, specify the kernel by defining it in KVER: rpmbuild -bb SPECS/tg3.spec --define "KVER <kernel version>" where <kernel version> in the form of 2.x.y-z is the version of another kernel that is installed on the system. 3. Install the newly built package (driver and man page): rpm -ivh RPMS/<arch>/tg3-<version>.<arch>.rpm <arch> is the architecture of the machine, e.g. i386: rpm -ivh RPMS/i386/tg3-<version>.i386.rpm Note that the --force option may be needed on some Linux distributions if conflicts are reported. The driver will be installed in the following path: 2.4.x kernels: /lib/modules/<kernel_version>/kernel/drivers/net/tg3.o 2.6.x/3.x kernels: /lib/modules/<kernel_version>/kernel/drivers/net/tg3.ko 4. Load the driver: insmod tg3.o or insmod tg3.ko (on 2.6.x/3.x kernels) or modprobe tg3 5. To configure network protocol and address, refer to various Linux documentations. Building Driver From TAR File ============================= The following are general guidelines for installing the driver. 1. Create a directory and extract the files: tar xvzf tg3-<version>.tar.gz 2. Build the driver tg3.o (or tg3.ko) as a loadable module for the running kernel: cd src make The driver will be compiled for the running kernel by default. To build the driver for a kernel different than the running one, specify the kernel by defining it in KVER: make KVER=<kernel version> where <kernel version> in the form of 2.x.y-z is the version of another kernel that is installed on the system. 3. Test the driver by loading it: insmod tg3.o or insmod tg3.ko (on 2.6.x/3.x kernels) or insmod tg3 4. Install the driver: make install See RPM instructions above for the location of the installed driver. 5. To configure network protocol and address, refer to various Linux documentations. Driver Settings =============== This version of the tg3 driver supports one module parameter that is not available in the in-kernel driver. The parameter is named tg3_disable_eee. To disable Energy Efficient Ethernet (EEE) support, set this module parameter to 1. The rest of the sections below apply to both the in-kernel tg3 driver and the tg3 driver package from Broadcom. Driver settings can be queried and changed using ethtool. The latest ethtool can be downloaded from ftp://ftp.kernel.org/pub/software/network/ethtool if it is not already installed. The following are some common examples on how to use ethtool. See the ethtool man page for more information. ethtool settings do not persist across reboot or module reload. The ethtool commands can be put in a startup script such as /etc/rc.local to preserve the settings across a reboot. On Red Hat distributions, "ethtool -s" parameters can be specified in the ifcfg-ethx scripts using the ETHTOOL_OPTS keyword. The specified ethtool parameters will be set during ifup. Example: /etc/sysconfig/network-scripts/ifcfg-eth0: ETHTOOL_OPTS="wol g speed 100 duplex half autoneg off" Some ethtool examples: 1. Show current speed, duplex, and link status: ethtool eth0 2. Change speed, duplex, autoneg: Example: 100Mbps half duplex, no autonegotiation: ethtool -s eth0 speed 100 duplex half autoneg off Example: Autonegotiation with full advertisement: ethtool -s eth0 autoneg on Example: Autonegotiation with 100Mbps full duplex advertisement only: ethtool -s eth0 speed 100 duplex full autoneg on 3. Show flow control settings: ethtool -a eth0 4. Change flow control settings: Example: Turn off flow control ethtool -A eth0 autoneg off rx off tx off Example: Turn flow control autonegotiation on with tx and rx advertisement: ethtool -A eth0 autoneg on rx on tx on Note that this is only valid if speed is set to autoneg