[PATCH 5.13 463/800] brcmfmac: correctly report average RSSI in station info
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-07-12 08:40:33
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Subsystem:
broadcom brcm80211 ieee802.11 wireless drivers, the rest · Maintainers:
Arend van Spriel, Linus Torvalds
From: Alvin Šipraga <ALSI@bang-olufsen.dk>
[ Upstream commit 9a1590934d9a02e570636432b93052c0c035f31f ]
The rx_lastpkt_rssi field provided by the firmware is suitable for
NL80211_STA_INFO_{SIGNAL,CHAIN_SIGNAL}, while the rssi field is an
average. Fix up the assignments and set the correct STA_INFO bits. This
lets userspace know that the average RSSI is part of the station info.
Fixes: cae355dc90db ("brcmfmac: Add RSSI information to get_station.")
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: Kalle Valo <redacted>
Link: https://lore.kernel.org/r/20210506132010.3964484-2-alsi@bang-olufsen.dk (local)
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../broadcom/brcm80211/brcmfmac/cfg80211.c | 36 ++++++++++---------
1 file changed, 20 insertions(+), 16 deletions(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index afa75cb83221..d8822a01d277 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c@@ -2767,8 +2767,9 @@ brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev, struct brcmf_sta_info_le sta_info_le; u32 sta_flags; u32 is_tdls_peer; - s32 total_rssi; - s32 count_rssi; + s32 total_rssi_avg = 0; + s32 total_rssi = 0; + s32 count_rssi = 0; int rssi; u32 i;
@@ -2834,24 +2835,27 @@ brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev, sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BYTES); sinfo->rx_bytes = le64_to_cpu(sta_info_le.rx_tot_bytes); } - total_rssi = 0; - count_rssi = 0; for (i = 0; i < BRCMF_ANT_MAX; i++) { - if (sta_info_le.rssi[i]) { - sinfo->chains |= BIT(count_rssi); - sinfo->chain_signal_avg[count_rssi] = - sta_info_le.rssi[i]; - sinfo->chain_signal[count_rssi] = - sta_info_le.rssi[i]; - total_rssi += sta_info_le.rssi[i]; - count_rssi++; - } + if (sta_info_le.rssi[i] == 0 || + sta_info_le.rx_lastpkt_rssi[i] == 0) + continue; + sinfo->chains |= BIT(count_rssi); + sinfo->chain_signal[count_rssi] = + sta_info_le.rx_lastpkt_rssi[i]; + sinfo->chain_signal_avg[count_rssi] = + sta_info_le.rssi[i]; + total_rssi += sta_info_le.rx_lastpkt_rssi[i]; + total_rssi_avg += sta_info_le.rssi[i]; + count_rssi++; } if (count_rssi) { - sinfo->filled |= BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL); sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL); - total_rssi /= count_rssi; - sinfo->signal = total_rssi; + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL); + sinfo->filled |= + BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL_AVG); + sinfo->signal = total_rssi / count_rssi; + sinfo->signal_avg = total_rssi_avg / count_rssi; } else if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state)) { memset(&scb_val, 0, sizeof(scb_val));
--
2.30.2