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wifi: rtw89: debug: add beacon RSSI for debugging

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In range test, the RSSI is helpful to check attenuation of cable and align
difference between environments. Since data packets can be transmitted with
different rate and power, the RSSI of all packets can be variant.
Oppositely beacon is transmitted with the same rate and power, so beacon
RSSI will be relatively invariant, and more helpful to diagnose problems.

The output of beacon RSSI in unit of dBm looks like:

  Beacon: 19 (-33 dBm), TF: 0

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240927013512.7106-1-pkshih@realtek.com
This commit is contained in:
Ping-Ke Shih
2024-09-27 09:35:12 +08:00
parent ad95bb3b92
commit 284939d7e8
4 changed files with 11 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/wireless/realtek/rtw89/core.c
View File

@@ -2110,6 +2110,9 @@ static void rtw89_vif_rx_stats_iter(void *data, u8 *mac,
rtw89_fw_h2c_rssi_offload(rtwdev, phy_ppdu);
}
pkt_stat->beacon_nr++;
if (phy_ppdu)
ewma_rssi_add(&rtwdev->phystat.bcn_rssi, phy_ppdu->rssi_avg);
}
if (!ether_addr_equal(bss_conf->addr, hdr->addr1))

1
drivers/net/wireless/realtek/rtw89/core.h
View File

@@ -4747,6 +4747,7 @@ DECLARE_EWMA(thermal, 4, 4);
struct rtw89_phy_stat {
struct ewma_thermal avg_thermal[RF_PATH_MAX];
struct ewma_rssi bcn_rssi;
struct rtw89_pkt_stat cur_pkt_stat;
struct rtw89_pkt_stat last_pkt_stat;
};

7
drivers/net/wireless/realtek/rtw89/debug.c
View File

@@ -3673,13 +3673,16 @@ static int rtw89_debug_priv_phy_info_get(struct seq_file *m, void *v)
const struct rtw89_chip_info *chip = rtwdev->chip;
const struct rtw89_rx_rate_cnt_info *info;
enum rtw89_hw_rate first_rate;
u8 rssi;
int i;
rssi = ewma_rssi_read(&rtwdev->phystat.bcn_rssi);
seq_printf(m, "TP TX: %u [%u] Mbps (lv: %d), RX: %u [%u] Mbps (lv: %d)\n",
stats->tx_throughput, stats->tx_throughput_raw, stats->tx_tfc_lv,
stats->rx_throughput, stats->rx_throughput_raw, stats->rx_tfc_lv);
seq_printf(m, "Beacon: %u, TF: %u\n", pkt_stat->beacon_nr,
stats->rx_tf_periodic);
seq_printf(m, "Beacon: %u (%d dBm), TF: %u\n", pkt_stat->beacon_nr,
RTW89_RSSI_RAW_TO_DBM(rssi), stats->rx_tf_periodic);
seq_printf(m, "Avg packet length: TX=%u, RX=%u\n", stats->tx_avg_len,
stats->rx_avg_len);

2
drivers/net/wireless/realtek/rtw89/phy.c
View File

@@ -4921,6 +4921,8 @@ static void rtw89_phy_stat_init(struct rtw89_dev *rtwdev)
memset(&phystat->cur_pkt_stat, 0, sizeof(phystat->cur_pkt_stat));
memset(&phystat->last_pkt_stat, 0, sizeof(phystat->last_pkt_stat));
ewma_rssi_init(&phystat->bcn_rssi);
}
void rtw89_phy_stat_track(struct rtw89_dev *rtwdev)