From b3c4d7c93e45f2cb9265c40e874c7ea56828d8df Mon Sep 17 00:00:00 2001
From: Shannon Nelson <shannon.nelson@oracle.com>
Date: Mon, 29 Oct 2018 15:54:12 -0700
Subject: [PATCH] ixgbe: add ipsec hw offload note to ixgbe Documentation
Add a short note about using IPsec Hardware Offload with
the ixgbe driver.
Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
Documentation/networking/ixgbe.rst | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/Documentation/networking/ixgbe.rst b/Documentation/networking/ixgbe.rst
index 725fc697fd8fb..86d887a636064 100644
--- a/Documentation/networking/ixgbe.rst
+++ b/Documentation/networking/ixgbe.rst
@@ -501,6 +501,19 @@ NOTE: This feature can be disabled for a specific Virtual Function (VF)::
ip link set <pf dev> vf <vf id> spoofchk {off|on}
+IPsec Offload
+-------------
+The ixgbe driver supports IPsec Hardware Offload. When creating Security
+Associations with "ip xfrm ..." the 'offload' tag option can be used to
+register the IPsec SA with the driver in order to get higher throughput in
+the secure communications.
+
+The offload is also supported for ixgbe's VFs, but the VF must be set as
+'trusted' and the support must be enabled with::
+
+ ethtool --set-priv-flags eth<x> vf-ipsec on
+ ip link set eth<x> vf <y> trust on
+
Known Issues/Troubleshooting
============================
--
2.30.2