diff options
Diffstat (limited to 'Documentation/networking/xfrm_device.rst')
| -rw-r--r-- | Documentation/networking/xfrm_device.rst | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/Documentation/networking/xfrm_device.rst b/Documentation/networking/xfrm_device.rst index 535077cbeb07..66f6e9a9b59a 100644 --- a/Documentation/networking/xfrm_device.rst +++ b/Documentation/networking/xfrm_device.rst @@ -71,9 +71,9 @@ Callbacks to implement bool (*xdo_dev_offload_ok) (struct sk_buff *skb, struct xfrm_state *x); void (*xdo_dev_state_advance_esn) (struct xfrm_state *x); + void (*xdo_dev_state_update_stats) (struct xfrm_state *x); /* Solely packet offload callbacks */ - void (*xdo_dev_state_update_curlft) (struct xfrm_state *x); int (*xdo_dev_policy_add) (struct xfrm_policy *x, struct netlink_ext_ack *extack); void (*xdo_dev_policy_delete) (struct xfrm_policy *x); void (*xdo_dev_policy_free) (struct xfrm_policy *x); @@ -169,7 +169,8 @@ 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(). +In ESN mode, xdo_dev_state_advance_esn() is called from +xfrm_replay_advance_esn() for RX, and xfrm_replay_overflow_offload_esn for TX. Driver will check packet seq number and update HW ESN state machine if needed. Packet offload mode: @@ -191,6 +192,6 @@ xdo_dev_policy_free() on any remaining offloaded states. Outcome of HW handling packets, the XFRM core can't count hard, soft limits. The HW/driver are responsible to perform it and provide accurate data when -xdo_dev_state_update_curlft() is called. In case of one of these limits +xdo_dev_state_update_stats() is called. In case of one of these limits occuried, the driver needs to call to xfrm_state_check_expire() to make sure that XFRM performs rekeying sequence. |