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authorLuciano Coelho <luciano.coelho@intel.com>2014-10-08 10:48:37 +0400
committerJohannes Berg <johannes.berg@intel.com>2014-10-09 13:30:08 +0400
commit6d027bcc8a4e2518ae825b0ff3dd069ab1abfe96 (patch)
tree798d3bfaf90f5f653905da6cb3be864f2a7a0443 /net/mac80211/trace.h
parente9a21949b79414dda42a017855b288901c07e613 (diff)
downloadlinux-6d027bcc8a4e2518ae825b0ff3dd069ab1abfe96.tar.xz
mac80211: add pre_channel_switch driver operation
Some drivers may need to prepare for a channel switch also when it is initiated from the remote side (eg. station, P2P client). To make this possible, add a generic callback that can be called for all interface types. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/trace.h')
-rw-r--r--net/mac80211/trace.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 853c440218d4..30476d2c7302 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -2108,6 +2108,39 @@ TRACE_EVENT(drv_channel_switch_beacon,
)
);
+TRACE_EVENT(drv_pre_channel_switch,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_channel_switch *ch_switch),
+
+ TP_ARGS(local, sdata, ch_switch),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ VIF_ENTRY
+ CHANDEF_ENTRY
+ __field(u64, timestamp)
+ __field(bool, block_tx)
+ __field(u8, count)
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ VIF_ASSIGN;
+ CHANDEF_ASSIGN(&ch_switch->chandef)
+ __entry->timestamp = ch_switch->timestamp;
+ __entry->block_tx = ch_switch->block_tx;
+ __entry->count = ch_switch->count;
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT VIF_PR_FMT " prepare channel switch to "
+ CHANDEF_PR_FMT " count:%d block_tx:%d timestamp:%llu",
+ LOCAL_PR_ARG, VIF_PR_ARG, CHANDEF_PR_ARG, __entry->count,
+ __entry->block_tx, __entry->timestamp
+ )
+);
+
#ifdef CONFIG_MAC80211_MESSAGE_TRACING
#undef TRACE_SYSTEM