This allows users to get ack signal strength of
last transmitted frame.
Signed-off-by: Venkateswara Naralasetty <vnara...@codeaurora.org>
---
V2:
* added one bool variable to validate ack_signal is valid or not.
include/net/mac80211.h | 1 +
net/mac80211/sta_info.c | 6 ++++++
net/mac80211/sta_info.h | 2 ++
net/mac80211/status.c | 11 ++++++++++-
4 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 906e902..854037b 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -934,6 +934,7 @@ struct ieee80211_tx_info {
u8 ampdu_len;
u8 antenna;
u16 tx_time;
+ bool is_valid_ack_signal;
void *status_driver_data[19 / sizeof(void *)];
} status;
struct {
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 0c5627f..0bc40c7 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -2287,6 +2287,12 @@ void sta_set_sinfo(struct sta_info *sta, struct
station_info *sinfo)
sinfo->filled |= BIT(NL80211_STA_INFO_EXPECTED_THROUGHPUT);
sinfo->expected_throughput = thr;
}
+
+ if (!(sinfo->filled & BIT_ULL(NL80211_STA_INFO_ACK_SIGNAL)) &&
+ sta->status_stats.ack_signal_filled) {
+ sinfo->ack_signal = sta->status_stats.last_ack_signal;
+ sinfo->filled |= BIT_ULL(NL80211_STA_INFO_ACK_SIGNAL);
+ }
}
u32 sta_get_expected_throughput(struct sta_info *sta)
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index cd53619..f64eb86 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -548,6 +548,8 @@ struct sta_info {
u64 msdu_retries[IEEE80211_NUM_TIDS + 1];
u64 msdu_failed[IEEE80211_NUM_TIDS + 1];
unsigned long last_ack;
+ s8 last_ack_signal;
+ bool ack_signal_filled;
} status_stats;
/* Updated from TX path only, no locking requirements */
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index da7427a..743e89c 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -187,9 +187,16 @@ static void ieee80211_frame_acked(struct sta_info *sta,
struct sk_buff *skb)
struct ieee80211_mgmt *mgmt = (void *) skb->data;
struct ieee80211_local *local = sta->local;
struct ieee80211_sub_if_data *sdata = sta->sdata;
+ struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
- if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS))
+ if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) {
sta->status_stats.last_ack = jiffies;
+ if (txinfo->status.is_valid_ack_signal) {
+ sta->status_stats.last_ack_signal =
+ (s8)txinfo->status.ack_signal;
+ sta->status_stats.ack_signal_filled = true;
+ }
+ }
if (ieee80211_is_data_qos(mgmt->frame_control)) {
struct ieee80211_hdr *hdr = (void *) skb->data;
@@ -487,6 +494,8 @@ static void ieee80211_report_ack_skb(struct ieee80211_local
*local,
ieee80211_is_qos_nullfunc(hdr->frame_control))
cfg80211_probe_status(sdata->dev, hdr->addr1,
cookie, acked,
+ info->status.ack_signal,
+
info->status.is_valid_ack_signal,
GFP_ATOMIC);
else
cfg80211_mgmt_tx_status(&sdata->wdev, cookie,
--
2.7.4
