Commit 237337c2 authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Johannes Berg
Browse files

mac80211: introduce set_radar_offchan callback 



Similar to cfg80211, introduce set_radar_offchan callback in mac80211_ops
in order to configure a dedicated offchannel chain available on some hw
(e.g. mt7915) to perform offchannel CAC detection and avoid tx/rx downtime.

Tested-by: default avatarEvelyn Tsai <evelyn.tsai@mediatek.com>
Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/201110606d4f3a7dfdf31440e351f2e2c375d4f0.1634979655.git.lorenzo@kernel.org


Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent bc2dfc02

include/net/mac80211.h

+10 −0
Original line number Diff line number Diff line
@@ -3944,6 +3944,14 @@ struct ieee80211_prep_tx_info { 
 *	twt structure.

 * @twt_teardown_request: Update the hw with TWT teardown request received

 *	from the peer.

 * @set_radar_offchan: Configure dedicated offchannel chain available for

 *	radar/CAC detection on some hw. This chain can't be used to transmit

 *	or receive frames and it is bounded to a running wdev.

 *	Offchannel radar/CAC detection allows to avoid the CAC downtime

 *	switching to a different channel during CAC detection on the selected

 *	radar channel.

 *	The caller is expected to set chandef pointer to NULL in order to

 *	disable offchannel CAC/radar detection.

 */

struct ieee80211_ops {

	void (*tx)(struct ieee80211_hw *hw,
@@ -4272,6 +4280,8 @@ struct ieee80211_ops { 
			      struct ieee80211_twt_setup *twt);

	void (*twt_teardown_request)(struct ieee80211_hw *hw,

				     struct ieee80211_sta *sta, u8 flowid);

	int (*set_radar_offchan)(struct ieee80211_hw *hw,

				 struct cfg80211_chan_def *chandef);

};



/**

net/mac80211/cfg.c

+13 −0
Original line number Diff line number Diff line
@@ -4383,6 +4383,18 @@ ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 
	return err;

}



static int

ieee80211_set_radar_offchan(struct wiphy *wiphy,

			    struct cfg80211_chan_def *chandef)

{

	struct ieee80211_local *local = wiphy_priv(wiphy);



	if (!local->ops->set_radar_offchan)

		return -EOPNOTSUPP;



	return local->ops->set_radar_offchan(&local->hw, chandef);

}



const struct cfg80211_ops mac80211_config_ops = {

	.add_virtual_intf = ieee80211_add_iface,

	.del_virtual_intf = ieee80211_del_iface,
@@ -4487,4 +4499,5 @@ const struct cfg80211_ops mac80211_config_ops = { 
	.reset_tid_config = ieee80211_reset_tid_config,

	.set_sar_specs = ieee80211_set_sar_specs,

	.color_change = ieee80211_color_change,

	.set_radar_offchan = ieee80211_set_radar_offchan,

};