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wifi: mac80211: add flag to disallow puncturing in 5 GHz

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Some devices may not be capable of handling puncturing in 5 GHz
only (vs. the current flag that just removes puncturing support
completely). Add a flag to support such devices: check and then
downgrade the channel width if needed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240318184907.49759510da7d.I12c5a61f0be512e0c4e574c2f794ef4b37ecaf6b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2024-03-18 18:53:25 +02:00
parent dc63b1d083
commit 6943e00331
3 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
include/net/mac80211.h
View File

@ -2779,6 +2779,8 @@ struct ieee80211_txq {
*
* @IEEE80211_HW_DISALLOW_PUNCTURING: HW requires disabling puncturing in EHT
* and connecting with a lower bandwidth instead
* @IEEE80211_HW_DISALLOW_PUNCTURING_5GHZ: HW requires disabling puncturing in
* EHT in 5 GHz and connecting with a lower bandwidth instead
*
* @IEEE80211_HW_HANDLES_QUIET_CSA: HW/driver handles quieting for CSA, so
* no need to stop queues. This really should be set by a driver that
@ -2843,6 +2845,7 @@ enum ieee80211_hw_flags {
IEEE80211_HW_DETECTS_COLOR_COLLISION,
IEEE80211_HW_MLO_MCAST_MULTI_LINK_TX,
IEEE80211_HW_DISALLOW_PUNCTURING,
IEEE80211_HW_DISALLOW_PUNCTURING_5GHZ,
IEEE80211_HW_HANDLES_QUIET_CSA,
/* keep last, obviously */

1
net/mac80211/debugfs.c
View File

@ -498,6 +498,7 @@ static const char *hw_flag_names[] = {
FLAG(DETECTS_COLOR_COLLISION),
FLAG(MLO_MCAST_MULTI_LINK_TX),
FLAG(DISALLOW_PUNCTURING),
FLAG(DISALLOW_PUNCTURING_5GHZ),
FLAG(HANDLES_QUIET_CSA),
#undef FLAG
};

4
net/mac80211/mlme.c
View File

@ -599,6 +599,10 @@ static bool ieee80211_chandef_usable(struct ieee80211_sub_if_data *sdata,
ieee80211_hw_check(&sdata->local->hw, DISALLOW_PUNCTURING))
return false;
if (chandef->punctured && chandef->chan->band == NL80211_BAND_5GHZ &&
ieee80211_hw_check(&sdata->local->hw, DISALLOW_PUNCTURING_5GHZ))
return false;
return true;
}