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authorFelix Fietkau <nbd@nbd.name>2019-08-28 16:25:22 +0200
committerFelix Fietkau <nbd@nbd.name>2019-09-29 22:16:27 +0200
commit6a3739dc42c1d9626e5784d9316c56962bd8f016 (patch)
tree902347f30ada93e2109b62e052698bbfbcccf013
parent881ed09ee6e23f6c224184bb7493253c4624fb9f (diff)
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mac80211: add patch to include local BSS rx time in survey information
Signed-off-by: Felix Fietkau <nbd@nbd.name>
-rw-r--r--package/kernel/mac80211/patches/subsys/350-cfg80211-add-local-BSS-receive-time-to-survey-inform.patch77
-rw-r--r--package/kernel/mac80211/patches/subsys/500-mac80211_configure_antenna_gain.patch4
2 files changed, 79 insertions, 2 deletions
diff --git a/package/kernel/mac80211/patches/subsys/350-cfg80211-add-local-BSS-receive-time-to-survey-inform.patch b/package/kernel/mac80211/patches/subsys/350-cfg80211-add-local-BSS-receive-time-to-survey-inform.patch
new file mode 100644
index 0000000000..af70b46fdc
--- /dev/null
+++ b/package/kernel/mac80211/patches/subsys/350-cfg80211-add-local-BSS-receive-time-to-survey-inform.patch
@@ -0,0 +1,77 @@
+From: Felix Fietkau <nbd@nbd.name>
+Date: Wed, 28 Aug 2019 12:13:55 +0200
+Subject: [PATCH] cfg80211: add local BSS receive time to survey information
+
+This is useful for checking how much airtime is being used up by other
+transmissions on the channel, e.g. by calculating (time_rx - time_bss_rx)
+or (time_busy - time_bss_rx - time_tx)
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/include/net/cfg80211.h
++++ b/include/net/cfg80211.h
+@@ -682,6 +682,7 @@ ieee80211_chandef_max_power(struct cfg80
+ * @SURVEY_INFO_TIME_RX: receive time was filled in
+ * @SURVEY_INFO_TIME_TX: transmit time was filled in
+ * @SURVEY_INFO_TIME_SCAN: scan time was filled in
++ * @SURVEY_INFO_TIME_BSS_RX: local BSS receive time was filled in
+ *
+ * Used by the driver to indicate which info in &struct survey_info
+ * it has filled in during the get_survey().
+@@ -695,6 +696,7 @@ enum survey_info_flags {
+ SURVEY_INFO_TIME_RX = BIT(5),
+ SURVEY_INFO_TIME_TX = BIT(6),
+ SURVEY_INFO_TIME_SCAN = BIT(7),
++ SURVEY_INFO_TIME_BSS_RX = BIT(8),
+ };
+
+ /**
+@@ -711,6 +713,7 @@ enum survey_info_flags {
+ * @time_rx: amount of time the radio spent receiving data
+ * @time_tx: amount of time the radio spent transmitting data
+ * @time_scan: amount of time the radio spent for scanning
++ * @time_bss_rx: amount of time the radio spent receiving data on a local BSS
+ *
+ * Used by dump_survey() to report back per-channel survey information.
+ *
+@@ -725,6 +728,7 @@ struct survey_info {
+ u64 time_rx;
+ u64 time_tx;
+ u64 time_scan;
++ u64 time_bss_rx;
+ u32 filled;
+ s8 noise;
+ };
+--- a/include/uapi/linux/nl80211.h
++++ b/include/uapi/linux/nl80211.h
+@@ -3836,6 +3836,8 @@ enum nl80211_user_reg_hint_type {
+ * @NL80211_SURVEY_INFO_TIME_SCAN: time the radio spent for scan
+ * (on this channel or globally)
+ * @NL80211_SURVEY_INFO_PAD: attribute used for padding for 64-bit alignment
++ * @NL80211_SURVEY_INFO_TIME_BSS_RX: amount of time the radio spent
++ * receiving local BSS data
+ * @NL80211_SURVEY_INFO_MAX: highest survey info attribute number
+ * currently defined
+ * @__NL80211_SURVEY_INFO_AFTER_LAST: internal use
+@@ -3852,6 +3854,7 @@ enum nl80211_survey_info {
+ NL80211_SURVEY_INFO_TIME_TX,
+ NL80211_SURVEY_INFO_TIME_SCAN,
+ NL80211_SURVEY_INFO_PAD,
++ NL80211_SURVEY_INFO_TIME_BSS_RX,
+
+ /* keep last */
+ __NL80211_SURVEY_INFO_AFTER_LAST,
+--- a/net/wireless/nl80211.c
++++ b/net/wireless/nl80211.c
+@@ -8694,6 +8694,10 @@ static int nl80211_send_survey(struct sk
+ nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
+ survey->time_scan, NL80211_SURVEY_INFO_PAD))
+ goto nla_put_failure;
++ if ((survey->filled & SURVEY_INFO_TIME_BSS_RX) &&
++ nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BSS_RX,
++ survey->time_bss_rx, NL80211_SURVEY_INFO_PAD))
++ goto nla_put_failure;
+
+ nla_nest_end(msg, infoattr);
+
diff --git a/package/kernel/mac80211/patches/subsys/500-mac80211_configure_antenna_gain.patch b/package/kernel/mac80211/patches/subsys/500-mac80211_configure_antenna_gain.patch
index 3ca34b7ec3..a76953933f 100644
--- a/package/kernel/mac80211/patches/subsys/500-mac80211_configure_antenna_gain.patch
+++ b/package/kernel/mac80211/patches/subsys/500-mac80211_configure_antenna_gain.patch
@@ -1,6 +1,6 @@
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
-@@ -3344,6 +3344,7 @@ struct cfg80211_update_owe_info {
+@@ -3348,6 +3348,7 @@ struct cfg80211_update_owe_info {
* (as advertised by the nl80211 feature flag.)
* @get_tx_power: store the current TX power into the dbm variable;
* return 0 if successful
@@ -8,7 +8,7 @@
*
* @set_wds_peer: set the WDS peer for a WDS interface
*
-@@ -3656,6 +3657,7 @@ struct cfg80211_ops {
+@@ -3660,6 +3661,7 @@ struct cfg80211_ops {
enum nl80211_tx_power_setting type, int mbm);
int (*get_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
int *dbm);