mac80211: implement STA CSA for drivers using channel contexts
Limit the current implementation to a single channel context used by
a single vif, thereby avoiding multi-vif/channel complexities.
Reuse the main function from AP CSA code, but move a portion out in
order to fit the STA scenario.
Add a new mac80211 HW flag so we don't break devices that don't support
channel switch with channel-contexts. The new behavior will be opt-in.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index da80119..f386c48 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1502,6 +1502,11 @@
*
* @IEEE80211_HW_TIMING_BEACON_ONLY: Use sync timing from beacon frames
* only, to allow getting TBTT of a DTIM beacon.
+ *
+ * @IEEE80211_HW_CHANCTX_STA_CSA: Support 802.11h based channel-switch (CSA)
+ * for a single active channel while using channel contexts. When support
+ * is not enabled the default action is to disconnect when getting the
+ * CSA frame.
*/
enum ieee80211_hw_flags {
IEEE80211_HW_HAS_RATE_CONTROL = 1<<0,
@@ -1532,6 +1537,7 @@
IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF = 1<<25,
IEEE80211_HW_TIMING_BEACON_ONLY = 1<<26,
IEEE80211_HW_SUPPORTS_HT_CCK_RATES = 1<<27,
+ IEEE80211_HW_CHANCTX_STA_CSA = 1<<28,
};
/**