Documentation/networking/: Update Intel wired LAN driver documentation
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>
diff --git a/Documentation/networking/igb.txt b/Documentation/networking/igb.txt
index 9a2a0371..4ebbd65 100644
--- a/Documentation/networking/igb.txt
+++ b/Documentation/networking/igb.txt
@@ -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 @@
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 @@
- 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 @@
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
=======