diff options
| author | Felix Fietkau <nbd@nbd.name> | 2023-02-13 13:08:55 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2023-02-14 14:35:02 +0300 |
| commit | 6e4c0d0460bd32ca9244dff3ba2d2da27235de11 (patch) | |
| tree | 6ccf602edcd5b9b794e89eed86dd0fc5c7287de9 /net/mac80211/sta_info.c | |
| parent | 986e43b19ae9176093da35e0a844e65c8bf9ede7 (diff) | |
| download | linux-6e4c0d0460bd32ca9244dff3ba2d2da27235de11.tar.xz | |
wifi: mac80211: add a workaround for receiving non-standard mesh A-MSDU
At least ath10k and ath11k supported hardware (maybe more) does not implement
mesh A-MSDU aggregation in a standard compliant way.
802.11-2020 9.3.2.2.2 declares that the Mesh Control field is part of the
A-MSDU header (and little-endian).
As such, its length must not be included in the subframe length field.
Hardware affected by this bug treats the mesh control field as part of the
MSDU data and sets the length accordingly.
In order to avoid packet loss, keep track of which stations are affected
by this and take it into account when converting A-MSDU to 802.3 + mesh control
packets.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20230213100855.34315-5-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/sta_info.c')
| -rw-r--r-- | net/mac80211/sta_info.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index bd532d3f925d..7d68dbc872d7 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -594,6 +594,9 @@ __sta_info_alloc(struct ieee80211_sub_if_data *sdata, sta->sta_state = IEEE80211_STA_NONE; + if (sdata->vif.type == NL80211_IFTYPE_MESH_POINT) + sta->amsdu_mesh_control = -1; + /* Mark TID as unreserved */ sta->reserved_tid = IEEE80211_TID_UNRESERVED; |