mac80211: introduce new ieee80211_ops

Introduce channel context driver methods. The channel
on a context channel is immutable, but the channel type
and other properties can change.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 107 insertions, 0 deletions

diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 18d9c8a52e9e..a3f5fe2a84a8 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -28,6 +28,15 @@
 #define VIF_PR_FMT      " vif:%s(%d%s)"
 #define VIF_PR_ARG      __get_str(vif_name), __entry->vif_type, __entry->p2p ? "/p2p" : ""
 
+#define CHANCTX_ENTRY   __field(int, freq)                                      \
+                        __field(int, chantype)
+#define CHANCTX_ASSIGN  __entry->freq = ctx->conf.channel->center_freq;         \
+                        __entry->chantype = ctx->conf.channel_type
+#define CHANCTX_PR_FMT  " freq:%d MHz chantype:%d"
+#define CHANCTX_PR_ARG  __entry->freq, __entry->chantype
+
+
+
 /*
  * Tracing for driver callbacks.
  */
@@ -1256,6 +1265,104 @@ DEFINE_EVENT(local_sdata_evt, drv_mgd_prepare_tx,
         TP_ARGS(local, sdata)
 );
 
+DECLARE_EVENT_CLASS(local_chanctx,
+        TP_PROTO(struct ieee80211_local *local,
+                 struct ieee80211_chanctx *ctx),
+
+        TP_ARGS(local, ctx),
+
+        TP_STRUCT__entry(
+                LOCAL_ENTRY
+                CHANCTX_ENTRY
+        ),
+
+        TP_fast_assign(
+                LOCAL_ASSIGN;
+                CHANCTX_ASSIGN;
+        ),
+
+        TP_printk(
+                LOCAL_PR_FMT CHANCTX_PR_FMT,
+                LOCAL_PR_ARG, CHANCTX_PR_ARG
+        )
+);
+
+DEFINE_EVENT(local_chanctx, drv_add_chanctx,
+        TP_PROTO(struct ieee80211_local *local,
+                 struct ieee80211_chanctx *ctx),
+        TP_ARGS(local, ctx)
+);
+
+DEFINE_EVENT(local_chanctx, drv_remove_chanctx,
+        TP_PROTO(struct ieee80211_local *local,
+                 struct ieee80211_chanctx *ctx),
+        TP_ARGS(local, ctx)
+);
+
+TRACE_EVENT(drv_change_chanctx,
+        TP_PROTO(struct ieee80211_local *local,
+                 struct ieee80211_chanctx *ctx,
+                 u32 changed),
+
+        TP_ARGS(local, ctx, changed),
+
+        TP_STRUCT__entry(
+                LOCAL_ENTRY
+                CHANCTX_ENTRY
+                __field(u32, changed)
+        ),
+
+        TP_fast_assign(
+                LOCAL_ASSIGN;
+                CHANCTX_ASSIGN;
+                __entry->changed = changed;
+        ),
+
+        TP_printk(
+                LOCAL_PR_FMT CHANCTX_PR_FMT " changed:%#x",
+                LOCAL_PR_ARG, CHANCTX_PR_ARG, __entry->changed
+        )
+);
+
+DECLARE_EVENT_CLASS(local_sdata_chanctx,
+        TP_PROTO(struct ieee80211_local *local,
+                 struct ieee80211_sub_if_data *sdata,
+                 struct ieee80211_chanctx *ctx),
+
+        TP_ARGS(local, sdata, ctx),
+
+        TP_STRUCT__entry(
+                LOCAL_ENTRY
+                VIF_ENTRY
+                CHANCTX_ENTRY
+        ),
+
+        TP_fast_assign(
+                LOCAL_ASSIGN;
+                VIF_ASSIGN;
+                CHANCTX_ASSIGN;
+        ),
+
+        TP_printk(
+                LOCAL_PR_FMT VIF_PR_FMT CHANCTX_PR_FMT,
+                LOCAL_PR_ARG, VIF_PR_ARG, CHANCTX_PR_ARG
+        )
+);
+
+DEFINE_EVENT(local_sdata_chanctx, drv_assign_vif_chanctx,
+        TP_PROTO(struct ieee80211_local *local,
+                 struct ieee80211_sub_if_data *sdata,
+                 struct ieee80211_chanctx *ctx),
+        TP_ARGS(local, sdata, ctx)
+);
+
+DEFINE_EVENT(local_sdata_chanctx, drv_unassign_vif_chanctx,
+        TP_PROTO(struct ieee80211_local *local,
+                 struct ieee80211_sub_if_data *sdata,
+                 struct ieee80211_chanctx *ctx),
+        TP_ARGS(local, sdata, ctx)
+);
+
 /*
  * Tracing for API calls that drivers call.
  */