mac80211: Add new API for rate selection

This patch adds a new API for setting a TX rate mask in
drivers that have rate control in either the firmware or hardware.
This can be used for various purposes, for example, masking out the
11b rates in P2P operation.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index c8c934d48b7a..191e834ec46b 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -989,6 +989,33 @@ DEFINE_EVENT(local_only_evt, drv_offchannel_tx_cancel_wait,
         TP_ARGS(local)
 );
 
+TRACE_EVENT(drv_set_bitrate_mask,
+        TP_PROTO(struct ieee80211_local *local,
+                 struct ieee80211_sub_if_data *sdata,
+                 const struct cfg80211_bitrate_mask *mask),
+
+        TP_ARGS(local, sdata, mask),
+
+        TP_STRUCT__entry(
+                LOCAL_ENTRY
+                VIF_ENTRY
+                __field(u32, legacy_2g)
+                __field(u32, legacy_5g)
+        ),
+
+        TP_fast_assign(
+                LOCAL_ASSIGN;
+                VIF_ASSIGN;
+                __entry->legacy_2g = mask->control[IEEE80211_BAND_2GHZ].legacy;
+                __entry->legacy_5g = mask->control[IEEE80211_BAND_5GHZ].legacy;
+        ),
+
+        TP_printk(
+                LOCAL_PR_FMT  VIF_PR_FMT " 2G Mask:0x%x 5G Mask:0x%x",
+                LOCAL_PR_ARG, VIF_PR_ARG, __entry->legacy_2g, __entry->legacy_5g
+        )
+);
+
 /*
  * Tracing for API calls that drivers call.
  */