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Diffstat (limited to 'Documentation/networking/xfrm_device.txt')
| -rw-r--r-- | Documentation/networking/xfrm_device.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/networking/xfrm_device.txt b/Documentation/networking/xfrm_device.txt index 2d9d588cd34b..50c34ca65efe 100644 --- a/Documentation/networking/xfrm_device.txt +++ b/Documentation/networking/xfrm_device.txt @@ -41,6 +41,7 @@ struct xfrmdev_ops { void (*xdo_dev_state_free) (struct xfrm_state *x); bool (*xdo_dev_offload_ok) (struct sk_buff *skb, struct xfrm_state *x); + void (*xdo_dev_state_advance_esn) (struct xfrm_state *x); }; The NIC driver offering ipsec offload will need to implement these @@ -117,6 +118,8 @@ the stack in xfrm_input(). hand the packet to napi_gro_receive() as usual +In ESN mode, xdo_dev_state_advance_esn() is called from xfrm_replay_advance_esn(). +Driver will check packet seq number and update HW ESN state machine if needed. When the SA is removed by the user, the driver's xdo_dev_state_delete() is asked to disable the offload. Later, xdo_dev_state_free() is called |