From: Kuan-Chung Chen Add debugfs beacon_info to display the information of beacon tracking. The screenshot as below: [Beacon info] count: 15 interval: 100 dtim: 1 raw rssi: 146 hw rate: 0 length: 407 [Distribution] tbtt 00 - 04: 26 05 - 09: 5 10 - 14: 1 15 - 19: 0 20 - 24: 0 25 - 29: 0 drift 0: 9 1: 7 2: 3 3: 3 4: 4 5: 1 6: 1 7: 2 8: 1 11: 1 lower bound: 0 upper bound: 10 outlier count: 1 [Tracking] tbtt offset: 20 bcn timeout: 19 Signed-off-by: Kuan-Chung Chen Signed-off-by: Ping-Ke Shih --- drivers/net/wireless/realtek/rtw89/debug.c | 61 ++++++++++++++++++++++ 1 file changed, 61 insertions(+) diff --git a/drivers/net/wireless/realtek/rtw89/debug.c b/drivers/net/wireless/realtek/rtw89/debug.c index afdfb9647fc1..a37cdd73ddc3 100644 --- a/drivers/net/wireless/realtek/rtw89/debug.c +++ b/drivers/net/wireless/realtek/rtw89/debug.c @@ -86,6 +86,7 @@ struct rtw89_debugfs { struct rtw89_debugfs_priv stations; struct rtw89_debugfs_priv disable_dm; struct rtw89_debugfs_priv mlo_mode; + struct rtw89_debugfs_priv beacon_info; }; struct rtw89_debugfs_iter_data { @@ -4298,6 +4299,64 @@ rtw89_debug_priv_mlo_mode_set(struct rtw89_dev *rtwdev, return count; } +static ssize_t +rtw89_debug_priv_beacon_info_get(struct rtw89_dev *rtwdev, + struct rtw89_debugfs_priv *debugfs_priv, + char *buf, size_t bufsz) +{ + struct rtw89_pkt_stat *pkt_stat = &rtwdev->phystat.last_pkt_stat; + struct rtw89_beacon_track_info *bcn_track = &rtwdev->bcn_track; + struct rtw89_beacon_stat *bcn_stat = &rtwdev->phystat.bcn_stat; + struct rtw89_beacon_dist *bcn_dist = &bcn_stat->bcn_dist; + u16 upper, lower = bcn_stat->tbtt_tu_min; + char *p = buf, *end = buf + bufsz; + u16 *drift = bcn_stat->drift; + u8 bcn_num = bcn_stat->num; + u8 count; + u8 i; + + p += scnprintf(p, end - p, "[Beacon info]\n"); + p += scnprintf(p, end - p, "count: %u\n", pkt_stat->beacon_nr); + p += scnprintf(p, end - p, "interval: %u\n", bcn_track->beacon_int); + p += scnprintf(p, end - p, "dtim: %u\n", bcn_track->dtim); + p += scnprintf(p, end - p, "raw rssi: %lu\n", + ewma_rssi_read(&rtwdev->phystat.bcn_rssi)); + p += scnprintf(p, end - p, "hw rate: %u\n", pkt_stat->beacon_rate); + p += scnprintf(p, end - p, "length: %u\n", pkt_stat->beacon_len); + + p += scnprintf(p, end - p, "\n[Distribution]\n"); + p += scnprintf(p, end - p, "tbtt\n"); + for (i = 0; i < RTW89_BCN_TRACK_MAX_BIN_NUM; i++) { + upper = lower + RTW89_BCN_TRACK_BIN_WIDTH - 1; + if (i == RTW89_BCN_TRACK_MAX_BIN_NUM - 1) + upper = max(upper, bcn_stat->tbtt_tu_max); + + p += scnprintf(p, end - p, "%02u - %02u: %u\n", + lower, upper, bcn_dist->bins[i]); + + lower = upper + 1; + } + + p += scnprintf(p, end - p, "\ndrift\n"); + + for (i = 0; i < bcn_num; i += count) { + count = 1; + while (i + count < bcn_num && drift[i] == drift[i + count]) + count++; + + p += scnprintf(p, end - p, "%u: %u\n", drift[i], count); + } + p += scnprintf(p, end - p, "\nlower bound: %u\n", bcn_dist->lower_bound); + p += scnprintf(p, end - p, "upper bound: %u\n", bcn_dist->upper_bound); + p += scnprintf(p, end - p, "outlier count: %u\n", bcn_dist->outlier_count); + + p += scnprintf(p, end - p, "\n[Tracking]\n"); + p += scnprintf(p, end - p, "tbtt offset: %u\n", bcn_track->tbtt_offset); + p += scnprintf(p, end - p, "bcn timeout: %u\n", bcn_track->bcn_timeout); + + return p - buf; +} + #define rtw89_debug_priv_get(name, opts...) \ { \ .cb_read = rtw89_debug_priv_ ##name## _get, \ @@ -4356,6 +4415,7 @@ static const struct rtw89_debugfs rtw89_debugfs_templ = { .stations = rtw89_debug_priv_get(stations, RLOCK), .disable_dm = rtw89_debug_priv_set_and_get(disable_dm, RWLOCK), .mlo_mode = rtw89_debug_priv_set_and_get(mlo_mode, RWLOCK), + .beacon_info = rtw89_debug_priv_get(beacon_info), }; #define rtw89_debugfs_add(name, mode, fopname, parent) \ @@ -4401,6 +4461,7 @@ void rtw89_debugfs_add_sec1(struct rtw89_dev *rtwdev, struct dentry *debugfs_top rtw89_debugfs_add_r(stations); rtw89_debugfs_add_rw(disable_dm); rtw89_debugfs_add_rw(mlo_mode); + rtw89_debugfs_add_r(beacon_info); } void rtw89_debugfs_init(struct rtw89_dev *rtwdev) -- 2.25.1