diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2021-10-23 12:10:50 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2021-11-19 11:38:49 +0300 |
| commit | bc2dfc02836b1133d1bf4d22aa13d48ac98eabef (patch) | |
| tree | b872b25469549398e7f3c3d6e45fcee08722a54c /net/wireless/core.h | |
| parent | 3b1abcf1289466eca4c46db8b55c06422f0abf34 (diff) | |
| download | linux-bc2dfc02836b1133d1bf4d22aa13d48ac98eabef.tar.xz | |
cfg80211: implement APIs for dedicated radar detection HW
If a dedicated (off-channel) radar detection hardware (chain)
is available in the hardware/driver, allow this to be used by
calling the NL80211_CMD_RADAR_DETECT command with a new flag
attribute requesting off-channel radar detection is used.
Offchannel CAC (channel availability check) avoids the CAC
downtime when switching to a radar channel or when turning on
the AP.
Drivers advertise support for this using the new feature flag
NL80211_EXT_FEATURE_RADAR_OFFCHAN.
Tested-by: Evelyn Tsai <evelyn.tsai@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/7468e291ef5d05d692c1738d25b8f778d8ea5c3f.1634979655.git.lorenzo@kernel.org
Link: https://lore.kernel.org/r/1e60e60fef00e14401adae81c3d49f3e5f307537.1634979655.git.lorenzo@kernel.org
Link: https://lore.kernel.org/r/85fa50f57fc3adb2934c8d9ca0be30394de6b7e8.1634979655.git.lorenzo@kernel.org
Link: https://lore.kernel.org/r/4b6c08671ad59aae0ac46fc94c02f31b1610eb72.1634979655.git.lorenzo@kernel.org
Link: https://lore.kernel.org/r/241849ccaf2c228873c6f8495bf87b19159ba458.1634979655.git.lorenzo@kernel.org
[remove offchan_mutex, fix cfg80211_stop_offchan_radar_detection(),
remove gfp_t argument, fix documentation, fix tracing]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/core.h')
| -rw-r--r-- | net/wireless/core.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/net/wireless/core.h b/net/wireless/core.h index 1720abf36f92..612d460dcde0 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -84,6 +84,10 @@ struct cfg80211_registered_device { struct delayed_work dfs_update_channels_wk; + struct wireless_dev *offchan_radar_wdev; + struct cfg80211_chan_def offchan_radar_chandef; + struct delayed_work offchan_cac_work; + /* netlink port which started critical protocol (0 means not started) */ u32 crit_proto_nlportid; @@ -491,6 +495,15 @@ cfg80211_chandef_dfs_cac_time(struct wiphy *wiphy, void cfg80211_sched_dfs_chan_update(struct cfg80211_registered_device *rdev); +int +cfg80211_start_offchan_radar_detection(struct cfg80211_registered_device *rdev, + struct wireless_dev *wdev, + struct cfg80211_chan_def *chandef); + +void cfg80211_stop_offchan_radar_detection(struct wireless_dev *wdev); + +void cfg80211_offchan_cac_work(struct work_struct *work); + bool cfg80211_any_wiphy_oper_chan(struct wiphy *wiphy, struct ieee80211_channel *chan); |