From 7c158399c21e4eabb33965a5fc689ebbd2ded4f6 Mon Sep 17 00:00:00 2001 From: Greg Rose Date: Sat, 12 Mar 2011 11:56:02 +0000 Subject: [PATCH] igb: Add anti-spoofing feature documentation Add the documentation for the anti-spoofing feature in the HW. Signed-off-by: Greg Rose Signed-off-by: Jeff Kirsher --- Documentation/networking/igb.txt | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/Documentation/networking/igb.txt b/Documentation/networking/igb.txt index 98953c0d5342..9a2a037194a5 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 =======