diff options
| author | Miri Korenblit <miriam.rachel.korenblit@intel.com> | 2026-03-18 15:39:24 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2026-03-25 22:56:55 +0300 |
| commit | 154b0296c0ecd3edb05555f824b6061438de2cd4 (patch) | |
| tree | d39189d1656e98bd67fab9af5655a88f8faa3370 /include/net | |
| parent | 44ea50a5bf304d3d6b55e4a2f946ce3c45a4e648 (diff) | |
| download | linux-154b0296c0ecd3edb05555f824b6061438de2cd4.tar.xz | |
wifi: nl80211: Add a notification to notify NAN channel evacuation
If all available channel resources are used for NAN channels, and one of
them is shared with another interface, and that interface needs to move
to a different channel (for example STA interface that needs to do a
channel or a link switch), then the driver can evacuate one of the NAN
channels (i.e. detach it from its channel resource and announce to the
peers that this channel is ULWed). In that case, the driver needs to
notify user space about the channel evacuation, so the user space can
adjust the local schedule accordingly.
Add a notification to let userspace know about it.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260219114327.d5bebfd5ff73.Iaaf5ef17e1ab7a38c19d60558e68fcf517e2b400@changeid
Link: https://patch.msgid.link/20260318123926.206536-11-miriam.rachel.korenblit@intel.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/cfg80211.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index ee173f69c417..9d3639ff9c28 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -10588,6 +10588,25 @@ void cfg80211_nan_cluster_joined(struct wireless_dev *wdev, void cfg80211_nan_ulw_update(struct wireless_dev *wdev, const u8 *ulw, size_t ulw_len, gfp_t gfp); +/** + * cfg80211_nan_channel_evac - Notify user space about NAN channel evacuation + * @wdev: Pointer to the wireless device structure + * @chandef: Pointer to the channel definition of the NAN channel that was + * evacuated + * @gfp: Memory allocation flags + * + * This function is used by drivers to notify user space when a NAN + * channel has been evacuated (i.e. ULWed) due to channel resource conflicts + * with other interfaces. + * This can happen when another interface sharing the channel resource with NAN + * needs to move to a different channel (e.g. due to channel switch or link + * switch). User space may reconfigure the local schedule to exclude the + * evacuated channel. + */ +void cfg80211_nan_channel_evac(struct wireless_dev *wdev, + const struct cfg80211_chan_def *chandef, + gfp_t gfp); + #ifdef CONFIG_CFG80211_DEBUGFS /** * wiphy_locked_debugfs_read - do a locked read in debugfs |