linux.git/include/net/mac80211.h, branch v6.1

wifi: mac80211: implement link switching

2022-09-06T08:17:20+00:00

Implement an API function and debugfs file to switch
active links.

Also provide an async version of the API so drivers
can call it in arbitrary contexts, e.g. while in the
authorized callback.

Signed-off-by: Johannes Berg

wifi: mac80211: keep A-MSDU data in sta and per-link

2022-09-06T08:17:08+00:00

The A-MSDU data needs to be stored per-link and aggregated into a single
value for the station. Add a new struct ieee_80211_sta_aggregates in
order to store this data and a new function
ieee80211_sta_recalc_aggregates to update the current data for the STA.

Note that in the non MLO case the pointer in ieee80211_sta will directly
reference the data in deflink.agg, which means that recalculation may be
skipped in that case.

Signed-off-by: Benjamin Berg 
Signed-off-by: Johannes Berg

wifi: mac80211: add vif/sta link RCU dereference macros

2022-09-06T08:14:45+00:00

Add macros (and an exported function) to allow checking some
link RCU protected accesses that are happening in callbacks
from mac80211 and are thus under the correct lock.

Signed-off-by: Johannes Berg

wifi: mac80211: extend ieee80211_nullfunc_get() for MLO

2022-09-06T08:14:24+00:00

Add a link_id parameter to ieee80211_nullfunc_get() to be
able to obtain a correctly addressed frame.

Signed-off-by: Johannes Berg

wifi: mac80211: add ieee80211_find_sta_by_link_addrs API

2022-09-06T08:13:41+00:00

Add a new API function ieee80211_find_sta_by_link_addrs()
that looks up the STA and link ID based on interface and
station link addresses.

We're going to use it for mac80211-hwsim to track on the
AP side which links are active.

Signed-off-by: Johannes Berg

wifi: mac80211: isolate driver from inactive links

2022-09-06T08:12:44+00:00

In order to let the driver select active links and properly
make multi-link connections, as a first step isolate the
driver from inactive links, and set the active links to be
only the association link for client-side interfaces. For
AP side nothing changes since APs always have to have all
their links active.

To simplify things, update the for_each_sta_active_link()
API to include the appropriate vif pointer.

This also implies not allocating a chanctx for an inactive
link, which requires a few more changes.

Since we now no longer try to program multiple links to the
driver, remove the check in the MLME code.

Signed-off-by: Johannes Berg

wifi: mac80211: make smps_mode per-link

2022-09-06T08:11:44+00:00

The SMPS power save mode needs to be per-link rather than being shared
for all links. As such, move it into struct ieee80211_link_sta.

Signed-off-by: Benjamin Berg 
Signed-off-by: Johannes Berg

wifi: mac80211: maintain link_id in link_sta

2022-08-25T08:41:25+00:00

To helper drivers if they e.g. have a lookup of the link_sta
pointer, add the link ID to the link_sta structure.

Signed-off-by: Johannes Berg

wifi: mac80211: add link information in ieee80211_rx_status

2022-08-25T08:41:14+00:00

In MLO, when the address translation from link to MLD is done
in fw/hw, it is necessary to be able to have some information
on the link on which the frame has been received. Extend the
rx API to include link_id and a valid flag in ieee80211_rx_status.
Also make chanes to mac80211 rx APIs to make use of the reported
link_id after sanity checks.

Signed-off-by: Vasanthakumar Thiagarajan 
Link: https://lore.kernel.org/r/20220817104213.2531-2-quic_vthiagar@quicinc.com
Signed-off-by: Johannes Berg

wifi: mac80211: properly implement MLO key handling

2022-08-25T08:41:07+00:00

Implement key installation and lookup (on TX and RX)
for MLO, so we can use multiple GTKs/IGTKs/BIGTKs.

Co-authored-by: Ilan Peer 
Signed-off-by: Ilan Peer 
Signed-off-by: Johannes Berg