mac80211: introduce TDLS channel switch ops
Implement the cfg80211 TDLS channel switch ops and introduce new mac80211
ones for low-level drivers.
Verify low-level driver support for the new ops when using the relevant
wiphy feature bit. Also verify the peer supports channel switching before
passing the command down.
Add a new STA flag to track the off-channel state with the TDLS peer and
make sure to cancel the channel-switch if the peer STA is unexpectedly
removed.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 96847e7..c0c0fca 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -2196,6 +2196,63 @@
)
);
+TRACE_EVENT(drv_tdls_channel_switch,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_sta *sta, u8 oper_class,
+ struct cfg80211_chan_def *chandef),
+
+ TP_ARGS(local, sdata, sta, oper_class, chandef),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ VIF_ENTRY
+ STA_ENTRY
+ __field(u8, oper_class)
+ CHANDEF_ENTRY
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ VIF_ASSIGN;
+ STA_ASSIGN;
+ __entry->oper_class = oper_class;
+ CHANDEF_ASSIGN(chandef)
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT VIF_PR_FMT " tdls channel switch to"
+ CHANDEF_PR_FMT " oper_class:%d " STA_PR_FMT,
+ LOCAL_PR_ARG, VIF_PR_ARG, CHANDEF_PR_ARG, __entry->oper_class,
+ STA_PR_ARG
+ )
+);
+
+TRACE_EVENT(drv_tdls_cancel_channel_switch,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_sta *sta),
+
+ TP_ARGS(local, sdata, sta),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ VIF_ENTRY
+ STA_ENTRY
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ VIF_ASSIGN;
+ STA_ASSIGN;
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT VIF_PR_FMT
+ " tdls cancel channel switch with " STA_PR_FMT,
+ LOCAL_PR_ARG, VIF_PR_ARG, STA_PR_ARG
+ )
+);
#ifdef CONFIG_MAC80211_MESSAGE_TRACING
#undef TRACE_SYSTEM
