FILE NAME:			hp-nx_nic-4.0.544-2.src.rpm

TITLE:			HP NC-Series QLogic nx_nic Driver for Linux

VERSION:			4.0.544

RELEASE:			2

LANGUAGE:			English

CATEGORY:			Software Solutions

DIVISIONS:			Enterprise and Mainstream Servers

PRODUCTS AFFECTED:
				HP NC375T PCI Express Quad Port Gigabit Server Adapter
				HP NC375i Quad Port Multifunction Gigabit Server Adapter
				HP NC522SFP Dual Port 10GbE Server Adapter
				HP NC524SFP Dual Port 10GbE Proliant Module
				HP NC510F PCIe 10 Gigabit Server Adapter
				HP NC510C PCIe 10 Gigabit Server Adapter
				HP NC512m Dual Port 10GbE Multifunction BL-c Adapter
				HP NC522m Dual Port 10GbE Multifunction BL-c 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:			4.0.539-3

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

ENHANCEMENTS/FIXES:
				1) Link issues with 1g Virtual Connect switches resolved
				2) Link issues with ProCurve 6120G/XG switch resolved
				3) KMP is now built for each SLES kernel flavor

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

  
Introduction
============
This file describes the Linux Ethernet driver for HP NC-Series Qlogic 
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 nx_nic 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 is a source rpm so it requires a build environment setup for the 
build.  Please refer to the "Build Environment Setup" section before proceding.

2. Install the source RPM package.

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

3. Build the binary RPM for the hp-nx_nic and hp-nx_nic-tools package.

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

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

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

	Note: This spec file will generate a KMOD/KMP driver pacakge and an 
	additional hp-nx_nic-tools package. The tools package includes the 
	firmware files necessary for the driver to work. The driver package 
	depends on the tools package and one can't install the driver package 
	with out it.

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

	SLES
	# rpm -q hp-nx_nic-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-nx_nic-<flavor>

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

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

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

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

	After verifying removal of the driver package, remove corresponding 
	tools package as follows

	# rpm -e hp-nx_nic-tools

5. Verify if an old version of nx_nic OR netxen_nic is loaded into the kernel and 
remove it as follows

	#lsmod | grep nx_nic
	OR
	#lsmod | grep netxen_nic

	Before removing the driver you will have to bring down the interfaces
	controlled by nx_nic or netxen_nic

	#ifconfig eth<n> down

	Finally remove the driver

	#rmmod nx_nic
	OR
	#rmmod netxen_nic

6. Install an associated version of hp-nx_nic-tools before installing the driver 
package

	# rpm -ivh RPMS/<arch>/hp-nx_tools-<version>-<arch>.rpm

7. Install the new binary driver RPM package. 

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

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

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

	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-nx_nic-<flavor>-<version>.<arch>.rpm --nodeps 

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

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

8. Configure your network setting and address. You may need to refer to your 
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, you must specify the module as nx_nic while configuring the network. 
The module can be specified in Hardware Details of Advanced configuration
      
9. 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 nx_nic
	alias eth1 nx_nic

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

	Note: If the above entry doesn't exist add it in configuration file.

10. You can now reboot your server or restart the network sevices. After this 
the network should start with the nx_nic driver loaded with the correct network 
configuration. To verify that the nx_nic driver is loaded, use the following 
command.

	# lsmod | grep nx_nic

If nx_nic is listed then the nx_nic driver is loaded. You can also verify that 
the correct nx_nic 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.

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-nx_nic-<kernel flavor>

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

The following command uninstall the hp-nx_nic-tools package. Uninstall the 
driver package before executing the below step

	#rpm -e hp-nx_nic-tools


Driver Settings
=================
The  following settings are the default and optional parameters for the
NIC.

	Speed:
			10,0000 Mbps, full-duplex

	MTU:
			Default: 1500
			Range  : 0-8000
			See the Examples section below on how to set the MTU

	TSO:
			Default: On
			See the Examples section below on how to change TSO

The following optional parameters can be passed to the driver with the
modprobe command.  Note:  See the Examples section below for an 
illustration on how to set the parameters.

	tx_desc
		Default: 1024
		Range  : 256-4096 (must be power of two)
		This sets the size of the command descriptor rings (tx)

	jumbo_desc
		Default: 1024
		Range  : 64-4096 (must be power of two)
		This sets the size of the receive ring for jumbo frames

	rdesc_10g
		Default: 32768
		Range  : 64-65536 (must be power of two)
		This sets the size of the receive ring for "normal" packets 
		(10GbE ports)

	use_msi
		Default: Enable (1)
		Range: Disable (0) or Enable (1)
		This enables or disables MSI.

Examples
		The following command illustrates how to set the optional 
		parameters:
			# modprobe nx_nic tx_desc=2048

		The following command illustrates how to set the MTU:
			# ifconfig eth<x> mtu 8000

		The following command illustrates how to change the TSO 
		parameter:
			# ethtool -K eth<x> tso off


Driver Messages
===============
The messages will be logged in the file /var/log/messages. Some Linux 
distributions may not display messages to the console. To set messages 
to display on the console, at the command line use the following to 
control the level at which messages will appear on the console.

	# dmesg -n 6

Most systems are set to level 6 by default.

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 only included 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 nx_nic packaged drivers uses the following symbols on 
RedHat EL5 Update 4 and Update 5 that are not on the whitelist:

ksym(pci_enable_msi) 
ksym(pci_enable_msix)
ksym(pci_disable_msi) 
ksym(pci_disable_msix)

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