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authorFelix Fietkau <nbd@openwrt.org>2010-10-09 02:39:29 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-10-11 15:04:20 -0400
commit8610c29a2c9f273886b1c31ae4d92c69d4326262 (patch)
treec0424e55a67e0a2a1c7f1d72a9d807c442da5a9c /include/net
parent15943a72c7d2031c9150917ca9161a9f891d455a (diff)
downloadop-kernel-dev-8610c29a2c9f273886b1c31ae4d92c69d4326262.zip
op-kernel-dev-8610c29a2c9f273886b1c31ae4d92c69d4326262.tar.gz
cfg80211: add channel utilization stats to the survey command
Using these, user space can calculate a relative channel utilization with arbitrary intervals by regularly taking snapshots of the survey results. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/cfg80211.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index f920a06..24d5b58 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -294,6 +294,11 @@ struct key_params {
*
* @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
* @SURVEY_INFO_IN_USE: channel is currently being used
+ * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in
+ * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in
+ * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in
+ * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in
+ * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in
*
* Used by the driver to indicate which info in &struct survey_info
* it has filled in during the get_survey().
@@ -301,6 +306,11 @@ struct key_params {
enum survey_info_flags {
SURVEY_INFO_NOISE_DBM = 1<<0,
SURVEY_INFO_IN_USE = 1<<1,
+ SURVEY_INFO_CHANNEL_TIME = 1<<2,
+ SURVEY_INFO_CHANNEL_TIME_BUSY = 1<<3,
+ SURVEY_INFO_CHANNEL_TIME_EXT_BUSY = 1<<4,
+ SURVEY_INFO_CHANNEL_TIME_RX = 1<<5,
+ SURVEY_INFO_CHANNEL_TIME_TX = 1<<6,
};
/**
@@ -310,6 +320,11 @@ enum survey_info_flags {
* @filled: bitflag of flags from &enum survey_info_flags
* @noise: channel noise in dBm. This and all following fields are
* optional
+ * @channel_time: amount of time in ms the radio spent on the channel
+ * @channel_time_busy: amount of time the primary channel was sensed busy
+ * @channel_time_ext_busy: amount of time the extension channel was sensed busy
+ * @channel_time_rx: amount of time the radio spent receiving data
+ * @channel_time_tx: amount of time the radio spent transmitting data
*
* Used by dump_survey() to report back per-channel survey information.
*
@@ -318,6 +333,11 @@ enum survey_info_flags {
*/
struct survey_info {
struct ieee80211_channel *channel;
+ u64 channel_time;
+ u64 channel_time_busy;
+ u64 channel_time_ext_busy;
+ u64 channel_time_rx;
+ u64 channel_time_tx;
u32 filled;
s8 noise;
};
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