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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next

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Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2018-01-26

One last patch for this development cycle:

1) Add ESN support for IPSec HW offload.
   From Yossef Efraim.

Please pull or let me know if there are problems.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2018-01-26 10:22:53 -05:00
parent 5b09179e7f 50bd870a9e
commit a81e4affe1
5 changed files with 27 additions and 2 deletions
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3
Documentation/networking/xfrm_device.txt
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@@ -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