Felix Fietkau 80a915ec44 mac80211: add rx decapsulation offload support
This allows drivers to pass 802.3 frames to mac80211, with some restrictions:

- the skb must be passed with a valid sta
- fast-rx needs to be active for the sta
- monitor mode needs to be disabled

mac80211 will tell the driver when it is safe to enable rx decap offload for
a particular station.

In order to implement support, a driver must:

- call ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD)
- implement ops->sta_set_decap_offload
- mark 802.3 frames with RX_FLAG_8023

If it doesn't want to enable offload for some vif types, it can mask out
IEEE80211_OFFLOAD_DECAP_ENABLED in vif->offload_flags from within the
.add_interface or .update_vif_offload driver ops

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20201218184718.93650-6-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-01-21 13:34:49 +01:00
2021-01-10 12:53:08 -08:00
2021-01-10 13:24:55 -08:00
2021-01-08 15:06:02 -08:00
2020-10-17 11:18:18 -07:00
2021-01-15 23:55:16 +01:00
2021-01-17 16:37:05 -08:00

Linux kernel
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