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mac80211: introduce set_radar_offchan callback

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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: Evelyn Tsai <evelyn.tsai@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/201110606d4f3a7dfdf31440e351f2e2c375d4f0.1634979655.git.lorenzo@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Lorenzo Bianconi 2021-10-23 11:10:51 +02:00 committed by Johannes Berg
parent bc2dfc0283
commit 237337c230
2 changed files with 23 additions and 0 deletions
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10
include/net/mac80211.h
View File

@ -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);
};
/**

13
net/mac80211/cfg.c
View File

@ -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,
};