Thread (27 messages) 27 messages, 2 authors, 2011-04-14

[net-next-2.6 01/24] igb: Add anti-spoofing feature documentation

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From: Jeff Kirsher <hidden>
Date: 2011-04-14 01:02:27
Subsystem: documentation, networking [general], the rest · Maintainers: Jonathan Corbet, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

Revision v1 of 33 in this series.

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From: Greg Rose <redacted>

Add the documentation for the anti-spoofing feature in the HW.

Signed-off-by: Greg Rose <redacted>
Signed-off-by: Jeff Kirsher <redacted>
---
 Documentation/networking/igb.txt |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/Documentation/networking/igb.txt b/Documentation/networking/igb.txt
index 98953c0..9a2a037 100644
--- a/Documentation/networking/igb.txt
+++ b/Documentation/networking/igb.txt
@@ -93,6 +93,19 @@ Additional Configurations
   REQUIREMENTS: MSI-X support is required for Multiqueue. If MSI-X is not
   found, the system will fallback to MSI or to Legacy interrupts.
 
+  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
 =======
 
-- 
1.7.4.2
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