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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>
This commit is contained in:
Shannon Nelson 2018-10-29 15:54:12 -07:00 committed by Jeff Kirsher
parent 11c6c0c228
commit b3c4d7c93e
1 changed files with 13 additions and 0 deletions
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13
Documentation/networking/ixgbe.rst
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@ -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
============================