netdev - [net-next-2.6 03/27] Documentation/networking/igb.txt: update documentation

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Date:	Fri, 10 Dec 2010 01:50:43 -0800
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	davem@...emleft.org
Cc:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>, netdev@...r.kernel.org,
	gospo@...hat.com, bphilips@...ell.com
Subject: [net-next-2.6 03/27] Documentation/networking/igb.txt: update documentation

Update Intel Wired LAN igb documentation.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 Documentation/networking/igb.txt |   22 +++++++++++++++++++---
 1 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/Documentation/networking/igb.txt b/Documentation/networking/igb.txt
index ab2d718..393bdb7 100644
--- a/Documentation/networking/igb.txt
+++ b/Documentation/networking/igb.txt
@@ -36,6 +36,7 @@ Default Value: 0
 This parameter adds support for SR-IOV.  It causes the driver to spawn up to
 max_vfs worth of virtual function.
 
+
 Additional Configurations
 =========================
 
@@ -60,7 +61,8 @@ Additional Configurations
   Ethtool
   -------
   The driver utilizes the ethtool interface for driver configuration and
-  diagnostics, as well as displaying statistical information.
+  diagnostics, as well as displaying statistical information. The latest
+  version of Ethtool can be found at:
 
   http://sourceforge.net/projects/gkernel.
 
@@ -103,8 +105,8 @@ Additional Configurations
 
   NOTE: You need to have inet_lro enabled via either the CONFIG_INET_LRO or
   CONFIG_INET_LRO_MODULE kernel config option. Additionally, if
-  CONFIG_INET_LRO_MODULE is used, the inet_lro module needs to be loaded
-  before the igb driver.
+  CONFIG_INET_LRO_MODULE is used, the inet_lro module needs to be loaded before
+  the igb driver.
 
   You can verify that the driver is using LRO by looking at these counters in
   Ethtool:
@@ -116,6 +118,20 @@ Additional Configurations
 
   NOTE: IPv6 and UDP are not supported by LRO.
 
+  MAC and VLAN anti-spoofing feature
+  ----------------------------------
+  When a malicious driver attempts to send a spoofed packet, it is dropped by
+  the hardware and not transmitted.  An interrupt is sent to the PF driver
+  notifying it of the spoof attempt.
+
+  When a spoofed packet is detected the PF driver will send the following
+  message to the system log (displayed by  the "dmesg" command):
+
+  Spoof event(s) detected on VF(n)
+
+  Where n=the VF that attempted to do the spoofing.
+
+
 Support
 =======
 
-- 
1.7.3.2

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