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mac80211: Add tx ack signal support in sta info 

This allows users to get ack signal strength of
last transmitted frame.

Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Venkateswara Naralasetty 2018-02-13 11:04:46 +05:30 committed by Johannes Berg
parent c4b50cd31d
commit a78b26fffd
4 changed files with 20 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
include/net/mac80211.h
View File

@ -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 {

6
net/mac80211/sta_info.c
View File

@ -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)

2
net/mac80211/sta_info.h
View File

@ -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 */

13
net/mac80211/status.c
View File

@ -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;
@ -486,7 +493,9 @@ static void ieee80211_report_ack_skb(struct ieee80211_local *local,
if (ieee80211_is_nullfunc(hdr->frame_control) ||
ieee80211_is_qos_nullfunc(hdr->frame_control))
cfg80211_probe_status(sdata->dev, hdr->addr1,
cookie, acked, 0, false,
cookie, acked,
info->status.ack_signal,
info->status.is_valid_ack_signal,
GFP_ATOMIC);
else
cfg80211_mgmt_tx_status(&sdata->wdev, cookie,