mac80211: define TDLS wider BW support bits

Allow a device to specify support for the TDLS wider-bandwidth feature.
Indicate this support during TDLS setup in the ext-capab IE and set an
appropriate station flag when our TDLS peer supports it.
This feature gives TDLS peers the ability to use a wider channel than
the base width of the BSS. For instance VHT capable TDLS peers connected
on a 20MHz channel can extend the channel to 80MHz, if regulatory
considerations allow it.

Do not cap the bandwidth of such stations by the current BSS channel width
in mac80211.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 4d3d2686f278..8f61a230c482 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1887,6 +1887,9 @@ struct ieee80211_txq {
  * @IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS: The HW supports scanning on all bands
  *      in one command, mac80211 doesn't have to run separate scans per band.
  *
+ * @IEEE80211_HW_TDLS_WIDER_BW: The device/driver supports wider bandwidth
+ *      than then BSS bandwidth for a TDLS link on the base channel.
+ *
  * @NUM_IEEE80211_HW_FLAGS: number of hardware flags, used for sizing arrays
  */
 enum ieee80211_hw_flags {
@@ -1919,6 +1922,7 @@ enum ieee80211_hw_flags {
         IEEE80211_HW_CHANCTX_STA_CSA,
         IEEE80211_HW_SUPPORTS_CLONED_SKBS,
         IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS,
+        IEEE80211_HW_TDLS_WIDER_BW,
 
         /* keep last, obviously */
         NUM_IEEE80211_HW_FLAGS