FILE NAME:			hp-igb-2.4.11-1.src.rpm

TITLE:			HP NC-Series Intel igb Driver for Linux

VERSION:			2.4.11

RELEASE:			1

LANGUAGE:			English

CATEGORY:			Software Solutions

DIVISIONS:			Enterprise and Mainstream Servers

PRODUCTS AFFECTED:
				HP NC362i Integrated DP Gigabit Server Adapter
				HP NC365T PCI Express Quad Port Gigabit Server Adapter

OPERATING SYSTEM:
				Red Hat Enterprise Linux 6 AS/ES for AMD64/EM64T
				Red Hat Enterprise Linux 6 AS/ES for x86
				Red Hat Enterprise Linux 5 AS/ES for AMD64/EM64T
				Red Hat Enterprise Linux 5 AS/ES for x86
				SUSE LINUX Enterprise Server 11 for AMD64/EM64T
				SUSE LINUX Enterprise Server 11 for x86
				SUSE LINUX Enterprise Server 10 for AMD64/EM64T
				SUSE LINUX Enterprise Server 10 for x86

PREREQUISITES:
				ProLiant server supporting above operating systems
				2 GB RAM minimum
				Latest HP System ROM
				Build Environment Setup

				NOTE: Visit the following URL and download latest System ROM
				http://welcome.hp.com/country/us/en/support.html
				Select "Download drivers and software"

EFFECTIVE DATE:		02/08/2011

SUPERSEDES:			2.4.8-2

DESCRIPTION:    
				This RPM contains the HP Tested and Approved Linux igb 
				driver for use with the Server Adapters mentioned in the 
				PRODUCTS AFFECTED section of this document.

ENHANCEMENTS/FIXES:
				1) KMP is now built for each SLES kernel flavor
				2) RHEL 5 update 6 support has been added

Table of Contents
=================
Introduction
Packaging
Build Environment Setup
Installing the RPM Package
Uninstalling the RPM
Limitations
Caveats


Introduction
============
This file describes the Linux Ethernet driver for HP NC-Series Intel 
Adapters mentioned in the PRODUCTS AFFECTED section of this document.

User guides and additional HP Network Adapter information can be found at:
http://h18004.www1.hp.com/products/servers/networking/index-nic.html


Packaging
=========
The driver is released in Kernel Module Package (KMP) source RPM format. KMP 
packages use macros that determine kernel flavors for which binary packages need
to be built based on spec file rules.

It is important to have the right build environment set up in order to compile a 
binary RPM from the source package.  See "Build Environment Setup" section below.


Build Environment Setup
========================
The igb package requires the presence of some packages that provide the 
right build environment. These packages provide kernel headers, makefiles and 
symbol files, though the last one is suggested only on SLES distributions.

RHEL installation:
	1. redhat-rpm-config package
	2. kernel-devel-<kernel_version> package
	3. kernel-<flavor>-devel-<kernel_version> package
	Eg: kernel-2.6.18.92.el5 requires kernel-devel-2.6.18-92.el5
	    kernel-PAE-2.6.18.92.el5 requires kernel-PAE-devel-2.6.18-92.el5

	See the "Caveats" section below for more details.

SLES Installation:
	1. kernel-source-<kernel_version> package
	2. kernel-syms-<kernel_version> package
	3. SLES11 requires kernel-<flavor>-devel-<kernel_version> package as well


Installing the RPM Package
=============================
1. This package requires a build environment.  Please refer to the 
"Build Environment Setup" Section before proceding to the next step.

2. Install the source RPM package.

	# rpm -ivh hp-igb-<version>.src.rpm

3. Build the binary RPM for the igb driver.

	RHEL 5:
	# rpmbuild -bb /usr/src/redhat/SPECS/hp-igb.spec

	RHEL 6:
	# rpmbuild -bb ~/rpmbuild/SPECS/hp-igb.spec

	SLES:
	# rpmbuild -bb /usr/src/packages/SPECS/hp-igb.spec

	If you get an error during the build process, refer to the 
	"Build Environment Setup" section.

	NOTE: One can build binary RPM for a specfic kernel flavor as follows:

	# rpmbuild -bb SPECS/hp-igb.spec --define "KVER <kver>"

	NOTE:  RHEL 5 x86 installations require the "--target" switch when
	building on Intel compatible machines. Please see the "Caveats" 
	section below for more details.

	# rpmbuild --target=i686 -bb /usr/src/redhat/SPECS/hp-igb.spec

4. Check for the existence of a current version of the igb package as follows:
	
	RHEL
	# rpm -q kmod-hp-igb-<flavor> 

	SLES
	# rpm -q hp-igb-kmp-<flavor>

	If an old version of the package exists, the RPM package should be
	removed. Remove the corresponding tools package before removing 
	driver package.

	RHEL
	# rpm -e kmod-hp-igb-<flavor>

	SLES
	# rpm -e hp-igb-kmp-<flavor>

	Verify if the old hp-igb package has been removed as follows:

	RHEL
	# rpm -q kmod-hp-igb-<kernel flavor>

	SLES
	# rpm -q hp-igb-kmp-<kernel flavor>  

5. Install the new binary RPM package.

	RHEL 5
	# rpm -ivh \
	/usr/src/redhat/RPMS/<arch>/kmod-hp-igb-<flavor>-<version>.<arch>.rpm 

	RHEL 6
	# rpm -ivh \
	~/rpmbuild/RPMS/<arch>/kmod-hp-igb-<flavor>-<version>.<arch>.rpm 

	The modules are installed in the following directory:
	/lib/modules/<kernel_version>/extra/hp-igb

	Note:  The "--nodeps" switch is required when installing on	RHEL 5.5. 
	See "Caveats" section below for more details.

	# rpm -ivh \
	/usr/src/redhat/RPMS/<arch>/kmod-hp-igb-<flavor>-<version>.<arch>.rpm --nodeps 

	SLES
	# rpm -ivh RPMS/<arch>/hp-igb-kmp-<version>-<flavor>.<arch>.rpm 

	The modules are installed in the following directory:
	/lib/modules/<kernel_version>/updates/hp-igb

6. Configure your network setting and address. You may need to refer to Linux vendor
documentation. Helpful network configuration tools such as "yast2" in SLES or 
linuxconf/redhat-config-network/netconfig in Red Hat exist for easy configuration.

For SLES, user may have to specify the module as igb while configuring the network. 
The module can be specified in Hardware Details of Advanced configuration

7. Ensure that the /etc/modules.conf file is configured similar to the example listed
below. The example below is presented as if more than one adapter is present. If so, 
one eth# instance should exist for each ethernet port. Refer to the modules.conf man 
page for more information.

	alias eth0 igb
	alias eth1 igb

For SLES, the configuration file is /etc/modprobe.conf or /etc/modprobe.conf.local

8. You can now reboot your server or restart the network services. Upon reboot the 
network should start with the igb driver loaded

To verify that the igb driver is loaded use the following command.

	# lsmod

If igb is listed then the igb driver is loaded. You can also verify that the correct
igb driver is loaded through any of the following methods. Note that version of the 
driver loaded should be same as that of the package version.

A. Look for driver load messages in the system log.

	#dmesg | grep Intel

You should see messages of the following type,

	Intel(R) PRO/1000 Network Driver - version x.x.x

B. Check the /var/log/messages file for a similar message as indicated in method A.

Note: To load the driver from command line use 'modprobe' instead of 'insmod'. Refer 
to the man pages for lsmod, ifconfig, rmmod, insmod, modprobe, modules.conf and 
modprobe.conf for more detailed information.


Uninstalling the RPM
====================
The following command will uninstall the RPM.

	Red Hat
	# rpm -e kmod-hp-igb-<kernel flavor>

	SLES
	# rpm -e hp-igb-kmp-<kernel flavor>


Limitations
===========
Some Linux distributions may not add the default route back to a specified network 
device when a network stop/start command is used. Use the route command to add the 
default router back to the network device.

Some Linux distributions may not add the default assigned IP address back to a 
specified network device when using the following:

	ifconfig eth(x) down
	rmmod <module name>
	insmod <module name> <optional parameter changes>
	ifconfig eth(x) up

Another step to reassign the IP address back to the device may be required:

	ifconfig eth(x) <ip address>

Some Linux distributions may add multiple IP addresses with the same system name in 
the /etc/hosts file when configuring multiple network devices.


Caveats
========
1. The rpmbuild will fail the dependency check when building the non-base
(xen,pae,etc) kernel when the kernel-devel package is not installed. 
Example:  If the OS installed only the PAE kernel, then the user would need to
install the kernel-pae-devel and kernel-devel packages.

2. The use of a "--target" switch is required so that rpmbuild does not try
to find an i386 kernel on the system.  If the "--target" switch is not used
then the build will fail with bizarre messages stating that specific kernel
packages are not installed on the machine yet those packages do not exist.

3. The rpmbuild will fail if the redhat-rpm-config package is not installed 
because it cannot resolve the %kernel_module_package_buildreqs macro. The 
error will be similar to the following: 

error: line xx: Dependency tokens must begin with alpha-numeric,'_'or'/': Build
Requires:
%kernel_module_package_buildreqs

4. RPM uses KMP packaging dependency data to ensure the dependencies are met
before installing the binary RPM.  Red Hat maintains a whitelist of kernel
symbols which RPM uses to validate against the KMP binaries.  Some symbols 
may be in the kernel but not on the whitelist which results in a failed 
binary RPM install. The user will need to use the "--nodeps" switch when 
installing the binary.  The igb driver uses the following symbols on 
RedHat EL5 Update 4 and Update 5 that is not on the whitelist:

ksym(dca_register_notify) 
ksym(dca3_get_tag)        
ksym(dca_unregister_notify) 
ksym(dca_remove_requester)
ksym(dca_add_requester) 
ksym(vlan_gro_receive) 
ksym(napi_gro_receive) 
ksym(napi_gro_flush) 
ksym(pci_disable_sriov) 
ksym(pci_enable_sriov)
ksym(pci_enable_msi) 
ksym(pci_enable_msix)
ksym(pci_disable_msi) 
ksym(pci_disable_msix)

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