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Documentation/networking/: Update Intel wired LAN driver documentation

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Updates the documentation to the Intel wired LAN drivers.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jeff Kirsher 2013-08-23 17:19:23 -07:00 committed by David S. Miller
parent e9d198403b
commit d7064f4c19
8 changed files with 193 additions and 43 deletions
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4
Documentation/networking/e100.txt
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@ -1,7 +1,7 @@
Linux* Base Driver for the Intel(R) PRO/100 Family of Adapters
==============================================================
November 15, 2005
March 15, 2011
Contents
========
@ -122,7 +122,7 @@ Additional Configurations
NOTE: This setting is not saved across reboots.
Ethtool
ethtool
-------
The driver utilizes the ethtool interface for driver configuration and

12
Documentation/networking/e1000.txt
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@ -1,8 +1,8 @@
Linux* Base Driver for the Intel(R) PRO/1000 Family of Adapters
===============================================================
Linux* Base Driver for Intel(R) Ethernet Network Connection
===========================================================
Intel Gigabit Linux driver.
Copyright(c) 1999 - 2010 Intel Corporation.
Copyright(c) 1999 - 2013 Intel Corporation.
Contents
========
@ -420,15 +420,15 @@ Additional Configurations
- The maximum MTU setting for Jumbo Frames is 16110. This value coincides
with the maximum Jumbo Frames size of 16128.
- Using Jumbo Frames at 10 or 100 Mbps may result in poor performance or
loss of link.
- Using Jumbo frames at 10 or 100 Mbps is not supported and may result in
poor performance or loss of link.
- Adapters based on the Intel(R) 82542 and 82573V/E controller do not
support Jumbo Frames. These correspond to the following product names:
Intel(R) PRO/1000 Gigabit Server Adapter
Intel(R) PRO/1000 PM Network Connection
Ethtool
ethtool
-------
The driver utilizes the ethtool interface for driver configuration and
diagnostics, as well as displaying statistical information. The ethtool

16
Documentation/networking/e1000e.txt
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@ -1,8 +1,8 @@
Linux* Driver for Intel(R) Network Connection
=============================================
Linux* Driver for Intel(R) Ethernet Network Connection
======================================================
Intel Gigabit Linux driver.
Copyright(c) 1999 - 2010 Intel Corporation.
Copyright(c) 1999 - 2013 Intel Corporation.
Contents
========
@ -259,13 +259,16 @@ Additional Configurations
- The maximum MTU setting for Jumbo Frames is 9216. This value coincides
with the maximum Jumbo Frames size of 9234 bytes.
- Using Jumbo Frames at 10 or 100 Mbps is not supported and may result in
- Using Jumbo frames at 10 or 100 Mbps is not supported and may result in
poor performance or loss of link.
- Some adapters limit Jumbo Frames sized packets to a maximum of
4096 bytes and some adapters do not support Jumbo Frames.
Ethtool
- Jumbo Frames cannot be configured on an 82579-based Network device, if
MACSec is enabled on the system.
ethtool
-------
The driver utilizes the ethtool interface for driver configuration and
diagnostics, as well as displaying statistical information. We
@ -273,6 +276,9 @@ Additional Configurations
http://ftp.kernel.org/pub/software/network/ethtool/
NOTE: When validating enable/disable tests on some parts (82578, for example)
you need to add a few seconds between tests when working with ethtool.
Speed and Duplex
----------------
Speed and Duplex are configured through the ethtool* utility. For

67
Documentation/networking/igb.txt
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@ -1,8 +1,8 @@
Linux* Base Driver for Intel(R) Network Connection
==================================================
Linux* Base Driver for Intel(R) Ethernet Network Connection
===========================================================
Intel Gigabit Linux driver.
Copyright(c) 1999 - 2010 Intel Corporation.
Copyright(c) 1999 - 2013 Intel Corporation.
Contents
========
@ -36,6 +36,53 @@ Default Value: 0
This parameter adds support for SR-IOV. It causes the driver to spawn up to
max_vfs worth of virtual function.
QueuePairs
----------
Valid Range: 0-1
Default Value: 1 (TX and RX will be paired onto one interrupt vector)
If set to 0, when MSI-X is enabled, the TX and RX will attempt to occupy
separate vectors.
This option can be overridden to 1 if there are not sufficient interrupts
available. This can occur if any combination of RSS, VMDQ, and max_vfs
results in more than 4 queues being used.
Node
----
Valid Range: 0-n
Default Value: -1 (off)
0 - n: where n is the number of the NUMA node that should be used to
allocate memory for this adapter port.
-1: uses the driver default of allocating memory on whichever processor is
running insmod/modprobe.
The Node parameter will allow you to pick which NUMA node you want to have
the adapter allocate memory from. All driver structures, in-memory queues,
and receive buffers will be allocated on the node specified. This parameter
is only useful when interrupt affinity is specified, otherwise some portion
of the time the interrupt could run on a different core than the memory is
allocated on, causing slower memory access and impacting throughput, CPU, or
both.
EEE
---
Valid Range: 0-1
Default Value: 1 (enabled)
A link between two EEE-compliant devices will result in periodic bursts of
data followed by long periods where in the link is in an idle state. This Low
Power Idle (LPI) state is supported in both 1Gbps and 100Mbps link speeds.
NOTE: EEE support requires autonegotiation.
DMAC
----
Valid Range: 0-1
Default Value: 1 (enabled)
Enables or disables DMA Coalescing feature.
Additional Configurations
=========================
@ -55,10 +102,10 @@ Additional Configurations
- The maximum MTU setting for Jumbo Frames is 9216. This value coincides
with the maximum Jumbo Frames size of 9234 bytes.
- Using Jumbo Frames at 10 or 100 Mbps may result in poor performance or
loss of link.
- Using Jumbo frames at 10 or 100 Mbps is not supported and may result in
poor performance or loss of link.
Ethtool
ethtool
-------
The driver utilizes the ethtool interface for driver configuration and
diagnostics, as well as displaying statistical information. The latest
@ -106,6 +153,14 @@ Additional Configurations
Where n=the VF that attempted to do the spoofing.
Setting MAC Address, VLAN and Rate Limit Using IProute2 Tool
------------------------------------------------------------
You can set a MAC address of a Virtual Function (VF), a default VLAN and the
rate limit using the IProute2 tool. Download the latest version of the
iproute2 tool from Sourceforge if your version does not have all the
features you require.
Support
=======

8
Documentation/networking/igbvf.txt
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@ -1,8 +1,8 @@
Linux* Base Driver for Intel(R) Network Connection
==================================================
Linux* Base Driver for Intel(R) Ethernet Network Connection
===========================================================
Intel Gigabit Linux driver.
Copyright(c) 1999 - 2010 Intel Corporation.
Copyright(c) 1999 - 2013 Intel Corporation.
Contents
========
@ -55,7 +55,7 @@ networking link on the left to search for your adapter:
Additional Configurations
=========================
Ethtool
ethtool
-------
The driver utilizes the ethtool interface for driver configuration and
diagnostics, as well as displaying statistical information. The ethtool

14
Documentation/networking/ixgb.txt
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@ -1,7 +1,7 @@
Linux Base Driver for 10 Gigabit Intel(R) Network Connection
=============================================================
Linux Base Driver for 10 Gigabit Intel(R) Ethernet Network Connection
=====================================================================
October 9, 2007
March 14, 2011
Contents
@ -274,9 +274,9 @@ Additional Configurations
-------------------------------------------------
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 files in /etc/modprobe.d/ 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
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
@ -306,7 +306,7 @@ Additional Configurations
with the maximum Jumbo Frames size of 16128.
Ethtool
ethtool
-------
The driver utilizes the ethtool interface for driver configuration and
diagnostics, as well as displaying statistical information. The ethtool

109
Documentation/networking/ixgbe.txt
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@ -1,8 +1,9 @@
Linux Base Driver for 10 Gigabit PCI Express Intel(R) Network Connection
========================================================================
Linux* Base Driver for the Intel(R) Ethernet 10 Gigabit PCI Express Family of
Adapters
=============================================================================
Intel Gigabit Linux driver.
Copyright(c) 1999 - 2010 Intel Corporation.
Intel 10 Gigabit Linux driver.
Copyright(c) 1999 - 2013 Intel Corporation.
Contents
========
@ -16,8 +17,8 @@ Contents
Identifying Your Adapter
========================
The driver in this release is compatible with 82598 and 82599-based Intel
Network Connections.
The driver in this release is compatible with 82598, 82599 and X540-based
Intel Network Connections.
For more information on how to identify your adapter, go to the Adapter &
Driver ID Guide at:
@ -72,7 +73,7 @@ cables that comply with SFF-8431 v4.1 and SFF-8472 v10.4 specifications.
Laser turns off for SFP+ when ifconfig down
-------------------------------------------
"ifconfig down" turns off the laser for 82599-based SFP+ fiber adapters.
"ifconfig up" turns on the later.
"ifconfig up" turns on the laser.
82598-BASED ADAPTERS
@ -118,6 +119,93 @@ NOTE: For 82598 backplane cards entering 1 gig mode, flow control default
behavior is changed to off. Flow control in 1 gig mode on these devices can
lead to Tx hangs.
Intel(R) Ethernet Flow Director
-------------------------------
Supports advanced filters that direct receive packets by their flows to
different queues. Enables tight control on routing a flow in the platform.
Matches flows and CPU cores for flow affinity. Supports multiple parameters
for flexible flow classification and load balancing.
Flow director is enabled only if the kernel is multiple TX queue capable.
An included script (set_irq_affinity.sh) automates setting the IRQ to CPU
affinity.
You can verify that the driver is using Flow Director by looking at the counter
in ethtool: fdir_miss and fdir_match.
Other ethtool Commands:
To enable Flow Director
ethtool -K ethX ntuple on
To add a filter
Use -U switch. e.g., ethtool -U ethX flow-type tcp4 src-ip 0x178000a
action 1
To see the list of filters currently present:
ethtool -u ethX
Perfect Filter: Perfect filter is an interface to load the filter table that
funnels all flow into queue_0 unless an alternative queue is specified using
"action". In that case, any flow that matches the filter criteria will be
directed to the appropriate queue.
If the queue is defined as -1, filter will drop matching packets.
To account for filter matches and misses, there are two stats in ethtool:
fdir_match and fdir_miss. In addition, rx_queue_N_packets shows the number of
packets processed by the Nth queue.
NOTE: Receive Packet Steering (RPS) and Receive Flow Steering (RFS) are not
compatible with Flow Director. IF Flow Director is enabled, these will be
disabled.
The following three parameters impact Flow Director.
FdirMode
--------
Valid Range: 0-2 (0=off, 1=ATR, 2=Perfect filter mode)
Default Value: 1
Flow Director filtering modes.
FdirPballoc
-----------
Valid Range: 0-2 (0=64k, 1=128k, 2=256k)
Default Value: 0
Flow Director allocated packet buffer size.
AtrSampleRate
--------------
Valid Range: 1-100
Default Value: 20
Software ATR Tx packet sample rate. For example, when set to 20, every 20th
packet, looks to see if the packet will create a new flow.
Node
----
Valid Range: 0-n
Default Value: 1 (off)
0 - n: where n is the number of NUMA nodes (i.e. 0 - 3) currently online in
your system
1: turns this option off
The Node parameter will allow you to pick which NUMA node you want to have
the adapter allocate memory on.
max_vfs
-------
Valid Range: 1-63
Default Value: 0
If the value is greater than 0 it will also force the VMDq parameter to be 1
or more.
This parameter adds support for SR-IOV. It causes the driver to spawn up to
max_vfs worth of virtual function.
Additional Configurations
=========================
@ -221,9 +309,10 @@ http://www.redhat.com/promo/summit/2008/downloads/pdf/Thursday/Mark_Wagner.pdf
Known Issues
============
Enabling SR-IOV in a 32-bit Microsoft* Windows* Server 2008 Guest OS using
Intel (R) 82576-based GbE or Intel (R) 82599-based 10GbE controller under KVM
-----------------------------------------------------------------------------
Enabling SR-IOV in a 32-bit or 64-bit Microsoft* Windows* Server 2008/R2
Guest OS using Intel (R) 82576-based GbE or Intel (R) 82599-based 10GbE
controller under KVM
------------------------------------------------------------------------
KVM Hypervisor/VMM supports direct assignment of a PCIe device to a VM. This
includes traditional PCIe devices, as well as SR-IOV-capable devices using
Intel 82576-based and 82599-based controllers.

6
Documentation/networking/ixgbevf.txt
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@ -1,8 +1,8 @@
Linux* Base Driver for Intel(R) Network Connection
==================================================
Linux* Base Driver for Intel(R) Ethernet Network Connection
===========================================================
Intel Gigabit Linux driver.
Copyright(c) 1999 - 2010 Intel Corporation.
Copyright(c) 1999 - 2013 Intel Corporation.
Contents
========