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package/kernel/mac80211/patches/subsys/321-cfg80211-Add-airtime-statistics-and-settings.patch Normal file
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@@ -0,0 +1,202 @@
From: =?UTF-8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= <toke@toke.dk>
Date: Tue, 18 Dec 2018 17:02:07 -0800
Subject: [PATCH] cfg80211: Add airtime statistics and settings
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This adds TX airtime statistics to the cfg80211 station dump (to go along
with the RX info already present), and adds a new parameter to set the
airtime weight of each station. The latter allows userspace to implement
policies for different stations by varying their weights.
Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
[rmanohar@codeaurora.org: fixed checkpatch warnings]
Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org>
[move airtime weight != 0 check into policy]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -988,6 +988,7 @@ enum station_parameters_apply_mask {
* @support_p2p_ps: information if station supports P2P PS mechanism
* @he_capa: HE capabilities of station
* @he_capa_len: the length of the HE capabilities
+ * @airtime_weight: airtime scheduler weight for this station
*/
struct station_parameters {
const u8 *supported_rates;
@@ -1017,6 +1018,7 @@ struct station_parameters {
int support_p2p_ps;
const struct ieee80211_he_cap_elem *he_capa;
u8 he_capa_len;
+ u16 airtime_weight;
};
/**
@@ -1284,6 +1286,8 @@ struct cfg80211_tid_stats {
* @rx_beacon_signal_avg: signal strength average (in dBm) for beacons received
* from this peer
* @rx_duration: aggregate PPDU duration(usecs) for all the frames from a peer
+ * @tx_duration: aggregate PPDU duration(usecs) for all the frames to a peer
+ * @airtime_weight: current airtime scheduling weight
* @pertid: per-TID statistics, see &struct cfg80211_tid_stats, using the last
* (IEEE80211_NUM_TIDS) index for MSDUs not encapsulated in QoS-MPDUs.
* Note that this doesn't use the @filled bit, but is used if non-NULL.
@@ -1330,12 +1334,15 @@ struct station_info {
u32 expected_throughput;
- u64 rx_beacon;
+ u64 tx_duration;
u64 rx_duration;
+ u64 rx_beacon;
u8 rx_beacon_signal_avg;
struct cfg80211_tid_stats *pertid;
s8 ack_signal;
s8 avg_ack_signal;
+
+ u16 airtime_weight;
};
#if IS_ENABLED(CPTCFG_CFG80211)
@@ -2361,6 +2368,8 @@ enum wiphy_params_flags {
WIPHY_PARAM_TXQ_QUANTUM = 1 << 8,
};
+#define IEEE80211_DEFAULT_AIRTIME_WEIGHT 256
+
/**
* struct cfg80211_pmksa - PMK Security Association
*
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -2241,6 +2241,9 @@ enum nl80211_commands {
* association request when used with NL80211_CMD_NEW_STATION). Can be set
* only if %NL80211_STA_FLAG_WME is set.
*
+ * @NL80211_ATTR_AIRTIME_WEIGHT: Station's weight when scheduled by the airtime
+ * scheduler.
+ *
* @NUM_NL80211_ATTR: total number of nl80211_attrs available
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
@@ -2682,6 +2685,14 @@ enum nl80211_attrs {
NL80211_ATTR_HE_CAPABILITY,
+ /* not backported yet */
+ NL80211_ATTR_FTM_RESPONDER,
+ NL80211_ATTR_FTM_RESPONDER_STATS,
+ NL80211_ATTR_TIMEOUT,
+ NL80211_ATTR_PEER_MEASUREMENTS,
+
+ NL80211_ATTR_AIRTIME_WEIGHT,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -3052,6 +3063,9 @@ enum nl80211_sta_bss_param {
* @NL80211_STA_INFO_ACK_SIGNAL: signal strength of the last ACK frame(u8, dBm)
* @NL80211_STA_INFO_DATA_ACK_SIGNAL_AVG: avg signal strength of (data)
* ACK frame (s8, dBm)
+ * @NL80211_STA_INFO_TX_DURATION: aggregate PPDU duration for all frames
+ * sent to the station (u64, usec)
+ * @NL80211_STA_INFO_AIRTIME_WEIGHT: current airtime weight for station (u16)
* @__NL80211_STA_INFO_AFTER_LAST: internal
* @NL80211_STA_INFO_MAX: highest possible station info attribute
*/
@@ -3093,6 +3107,14 @@ enum nl80211_sta_info {
NL80211_STA_INFO_ACK_SIGNAL,
NL80211_STA_INFO_DATA_ACK_SIGNAL_AVG,
+ /* not backported yet */
+ NL80211_STA_INFO_RX_MPDUS,
+ NL80211_STA_INFO_FCS_ERROR_COUNT,
+ NL80211_STA_INFO_CONNECTED_TO_GATE,
+
+ NL80211_STA_INFO_TX_DURATION,
+ NL80211_STA_INFO_AIRTIME_WEIGHT,
+
/* keep last */
__NL80211_STA_INFO_AFTER_LAST,
NL80211_STA_INFO_MAX = __NL80211_STA_INFO_AFTER_LAST - 1
@@ -5224,6 +5246,10 @@ enum nl80211_feature_flags {
* except for supported rates from the probe request content if requested
* by the %NL80211_SCAN_FLAG_MIN_PREQ_CONTENT flag.
*
+ * @NL80211_EXT_FEATURE_AIRTIME_FAIRNESS: Driver supports getting airtime
+ * fairness for transmitted packets and has enabled airtime fairness
+ * scheduling.
+ *
* @NUM_NL80211_EXT_FEATURES: number of extended features.
* @MAX_NL80211_EXT_FEATURES: highest extended feature index.
*/
@@ -5260,6 +5286,12 @@ enum nl80211_ext_feature_index {
NL80211_EXT_FEATURE_SCAN_RANDOM_SN,
NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT,
+ /* --- not backported yet --- */
+ NL80211_EXT_FEATURE_CAN_REPLACE_PTK0,
+ NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER,
+
+ NL80211_EXT_FEATURE_AIRTIME_FAIRNESS,
+
/* add new features before the definition below */
NUM_NL80211_EXT_FEATURES,
MAX_NL80211_EXT_FEATURES = NUM_NL80211_EXT_FEATURES - 1
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -469,6 +469,7 @@ static const struct nla_policy nl80211_p
[NL80211_ATTR_TXQ_QUANTUM] = { .type = NLA_U32 },
[NL80211_ATTR_HE_CAPABILITY] = { .type = NLA_BINARY,
.len = NL80211_HE_MAX_CAPABILITY_LEN },
+ [NL80211_ATTR_AIRTIME_WEIGHT] = NLA_POLICY_MIN(NLA_U16, 1),
};
/* policy for the key attributes */
@@ -4715,6 +4716,11 @@ static int nl80211_send_station(struct s
PUT_SINFO(PLID, plid, u16);
PUT_SINFO(PLINK_STATE, plink_state, u8);
PUT_SINFO_U64(RX_DURATION, rx_duration);
+ PUT_SINFO_U64(TX_DURATION, tx_duration);
+
+ if (wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_AIRTIME_FAIRNESS))
+ PUT_SINFO(AIRTIME_WEIGHT, airtime_weight, u16);
switch (rdev->wiphy.signal_type) {
case CFG80211_SIGNAL_TYPE_MBM:
@@ -5351,6 +5357,15 @@ static int nl80211_set_station(struct sk
nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
}
+ if (info->attrs[NL80211_ATTR_AIRTIME_WEIGHT])
+ params.airtime_weight =
+ nla_get_u16(info->attrs[NL80211_ATTR_AIRTIME_WEIGHT]);
+
+ if (params.airtime_weight &&
+ !wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_AIRTIME_FAIRNESS))
+ return -EOPNOTSUPP;
+
/* Include parameters for TDLS peer (will check later) */
err = nl80211_set_station_tdls(info, &params);
if (err)
@@ -5489,6 +5504,15 @@ static int nl80211_new_station(struct sk
return -EINVAL;
}
+ if (info->attrs[NL80211_ATTR_AIRTIME_WEIGHT])
+ params.airtime_weight =
+ nla_get_u16(info->attrs[NL80211_ATTR_AIRTIME_WEIGHT]);
+
+ if (params.airtime_weight &&
+ !wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_AIRTIME_FAIRNESS))
+ return -EOPNOTSUPP;
+
err = nl80211_parse_sta_channel_info(info, &params);
if (err)
return err;