diff options
| author | Luciano Coelho <luciano.coelho@intel.com> | 2014-10-08 09:48:37 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-10-09 11:30:08 +0200 |
| commit | 6d027bcc8a4e2518ae825b0ff3dd069ab1abfe96 (patch) | |
| tree | 798d3bfaf90f5f653905da6cb3be864f2a7a0443 /net/mac80211/trace.h | |
| parent | e9a21949b79414dda42a017855b288901c07e613 (diff) | |
| download | lwn-6d027bcc8a4e2518ae825b0ff3dd069ab1abfe96.tar.gz lwn-6d027bcc8a4e2518ae825b0ff3dd069ab1abfe96.zip | |
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.h | 33 |
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 |