[RFC,0/7] add offchannel monitor chain support

Message

Lorenzo Bianconi Sept. 28, 2021, 3:14 p.m. UTC

Introduce the capability to configure a dedicated chain available for radar
detection on some hw (e.g. mt7915). The driver is supposed to implement CAC
management in sw or fw while hostapd (or iw) will implement the logic to
select and configure the monitored channel.
Using a dedicated chain to perform the CAC, the AP can avoid the CAC downtime
switching to a new DFS channel.

Lorenzo Bianconi (7):
  mac80211: introduce set_offchan_chain callback
  cfg80211: introduce nl80211_set_offchan_chain callback
  cfg80211: introduce cfg80211_cac_offchan_event routine
  mt76: mt7915: introduce mt7915_set_offchan_chain routine
  mt76: mt7915: enable radar trigger on rdd2
  mt76: mt7915: introduce rdd_monitor debugfs node
  mt76: mt7915: add cac support for offchannel chain

 .../wireless/mediatek/mt76/mt7915/debugfs.c   | 37 +++++++++-
 .../net/wireless/mediatek/mt76/mt7915/init.c  |  4 ++
 .../net/wireless/mediatek/mt76/mt7915/mac.c   | 57 ++++++++++++++++
 .../net/wireless/mediatek/mt76/mt7915/main.c  | 33 +++++++++
 .../net/wireless/mediatek/mt76/mt7915/mcu.c   | 67 ++++++++++++++++++-
 .../net/wireless/mediatek/mt76/mt7915/mcu.h   | 24 +++++++
 .../wireless/mediatek/mt76/mt7915/mt7915.h    | 10 +++
 include/net/cfg80211.h                        | 19 ++++++
 include/net/mac80211.h                        |  5 ++
 include/uapi/linux/nl80211.h                  |  6 ++
 net/mac80211/cfg.c                            | 13 ++++
 net/wireless/mlme.c                           | 26 +++++++
 net/wireless/nl80211.c                        | 41 ++++++++++++
 net/wireless/rdev-ops.h                       | 17 +++++
 net/wireless/trace.h                          | 19 ++++++
 15 files changed, 375 insertions(+), 3 deletions(-)