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authorGreg Rose <gregory.v.rose@intel.com>2011-03-12 11:56:02 +0000
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-04-13 19:15:50 -0700
commit7c158399c21e4eabb33965a5fc689ebbd2ded4f6 (patch)
tree825b471b130b2317444f90a1b410693180ee82bf /Documentation/networking/igb.txt
parentc326de88b8ac7ed1cd1027017ba6079dbe91be49 (diff)
downloadblackbird-obmc-linux-7c158399c21e4eabb33965a5fc689ebbd2ded4f6.tar.gz
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igb: Add anti-spoofing feature documentation
Add the documentation for the anti-spoofing feature in the HW. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'Documentation/networking/igb.txt')
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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.
+
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