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>
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@ -934,6 +934,7 @@ struct ieee80211_tx_info {
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u8 ampdu_len;
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u8 antenna;
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u16 tx_time;
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bool is_valid_ack_signal;
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void *status_driver_data[19 / sizeof(void *)];
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} status;
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struct {
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@ -2287,6 +2287,12 @@ void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
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sinfo->filled |= BIT(NL80211_STA_INFO_EXPECTED_THROUGHPUT);
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sinfo->expected_throughput = thr;
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}
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if (!(sinfo->filled & BIT_ULL(NL80211_STA_INFO_ACK_SIGNAL)) &&
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sta->status_stats.ack_signal_filled) {
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sinfo->ack_signal = sta->status_stats.last_ack_signal;
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sinfo->filled |= BIT_ULL(NL80211_STA_INFO_ACK_SIGNAL);
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}
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}
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u32 sta_get_expected_throughput(struct sta_info *sta)
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@ -548,6 +548,8 @@ struct sta_info {
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u64 msdu_retries[IEEE80211_NUM_TIDS + 1];
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u64 msdu_failed[IEEE80211_NUM_TIDS + 1];
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unsigned long last_ack;
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s8 last_ack_signal;
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bool ack_signal_filled;
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} status_stats;
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/* Updated from TX path only, no locking requirements */
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@ -187,9 +187,16 @@ static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb)
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struct ieee80211_mgmt *mgmt = (void *) skb->data;
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struct ieee80211_local *local = sta->local;
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struct ieee80211_sub_if_data *sdata = sta->sdata;
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struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
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if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS))
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if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) {
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sta->status_stats.last_ack = jiffies;
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if (txinfo->status.is_valid_ack_signal) {
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sta->status_stats.last_ack_signal =
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(s8)txinfo->status.ack_signal;
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sta->status_stats.ack_signal_filled = true;
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}
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}
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if (ieee80211_is_data_qos(mgmt->frame_control)) {
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struct ieee80211_hdr *hdr = (void *) skb->data;
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@ -486,7 +493,9 @@ static void ieee80211_report_ack_skb(struct ieee80211_local *local,
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if (ieee80211_is_nullfunc(hdr->frame_control) ||
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ieee80211_is_qos_nullfunc(hdr->frame_control))
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cfg80211_probe_status(sdata->dev, hdr->addr1,
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cookie, acked, 0, false,
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cookie, acked,
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info->status.ack_signal,
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info->status.is_valid_ack_signal,
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GFP_ATOMIC);
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else
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cfg80211_mgmt_tx_status(&sdata->wdev, cookie,
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