cfg80211: introduce TDLS channel switch commands

Introduce commands to initiate and cancel TDLS channel-switching. Once
TDLS channel-switching is started, the lower level driver is responsible
for continually initiating channel-switch operations and returning to
the base (AP) channel to listen for beacons from time to time.

Upon cancellation of the channel-switch all communication between the
relevant TDLS peers will continue on the base channel.

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

1 files changed, 42 insertions, 0 deletions

diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index 6e25370d3ce7..ad38910f7036 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -2032,6 +2032,48 @@ TRACE_EVENT(rdev_del_tx_ts,
                   WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(peer), __entry->tsid)
 );
 
+TRACE_EVENT(rdev_tdls_channel_switch,
+        TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+                 const u8 *addr, u8 oper_class,
+                 struct cfg80211_chan_def *chandef),
+        TP_ARGS(wiphy, netdev, addr, oper_class, chandef),
+        TP_STRUCT__entry(
+                WIPHY_ENTRY
+                NETDEV_ENTRY
+                MAC_ENTRY(addr)
+                __field(u8, oper_class)
+                CHAN_DEF_ENTRY
+        ),
+        TP_fast_assign(
+                WIPHY_ASSIGN;
+                NETDEV_ASSIGN;
+                MAC_ASSIGN(addr, addr);
+                CHAN_DEF_ASSIGN(chandef);
+        ),
+        TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", " MAC_PR_FMT
+                  " oper class %d, " CHAN_DEF_PR_FMT,
+                  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(addr),
+                  __entry->oper_class, CHAN_DEF_PR_ARG)
+);
+
+TRACE_EVENT(rdev_tdls_cancel_channel_switch,
+        TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+                 const u8 *addr),
+        TP_ARGS(wiphy, netdev, addr),
+        TP_STRUCT__entry(
+                WIPHY_ENTRY
+                NETDEV_ENTRY
+                MAC_ENTRY(addr)
+        ),
+        TP_fast_assign(
+                WIPHY_ASSIGN;
+                NETDEV_ASSIGN;
+                MAC_ASSIGN(addr, addr);
+        ),
+        TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", " MAC_PR_FMT,
+                  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(addr))
+);
+
 /*************************************************************
  *           cfg80211 exported functions traces              *
  *************************************************************/