| From 529ea5156b39398b24801eabcb3f1531ca53d3ca Mon Sep 17 00:00:00 2001 |
| From: Yi-Chia Hsieh <yi-chia.hsieh@mediatek.com> |
| Date: Mon, 13 Mar 2023 05:23:37 +0800 |
| Subject: [PATCH 12/21] mac80211: mtk: track obss color bitmap |
| |
| Track OBSS BSS color when receive their beacon. |
| |
| Adding 2 tracepoint for debug, usage: |
| echo 1 > /sys/kernel/debug/tracing/events/mac80211/bss_color_bitmap/enable |
| echo 1 > /sys/kernel/debug/tracing/events/mac80211/bss_color_collision/enable |
| --- |
| include/net/mac80211.h | 1 + |
| net/mac80211/rx.c | 6 +++++- |
| net/mac80211/trace.h | 21 +++++++++++++++++++++ |
| 3 files changed, 27 insertions(+), 1 deletion(-) |
| |
| diff --git a/include/net/mac80211.h b/include/net/mac80211.h |
| index 2c282e6..b90e828 100644 |
| --- a/include/net/mac80211.h |
| +++ b/include/net/mac80211.h |
| @@ -744,6 +744,7 @@ struct ieee80211_bss_conf { |
| } he_oper; |
| struct ieee80211_he_obss_pd he_obss_pd; |
| struct cfg80211_he_bss_color he_bss_color; |
| + u64 used_color_bitmap; |
| struct ieee80211_fils_discovery fils_discovery; |
| u32 unsol_bcast_probe_resp_interval; |
| struct cfg80211_bitrate_mask beacon_tx_rate; |
| diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c |
| index 56abe67..cf41b93 100644 |
| --- a/net/mac80211/rx.c |
| +++ b/net/mac80211/rx.c |
| @@ -3349,9 +3349,13 @@ ieee80211_rx_check_bss_color_collision(struct ieee80211_rx_data *rx) |
| |
| color = le32_get_bits(he_oper->he_oper_params, |
| IEEE80211_HE_OPERATION_BSS_COLOR_MASK); |
| + |
| + bss_conf->used_color_bitmap |= BIT_ULL(color); |
| + |
| + // trace_bss_color_bitmap(color, bss_conf->used_color_bitmap); |
| if (color == bss_conf->he_bss_color.color) |
| ieee80211_obss_color_collision_notify(&rx->sdata->vif, |
| - BIT_ULL(color), |
| + bss_conf->used_color_bitmap, |
| GFP_ATOMIC); |
| } |
| } |
| diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h |
| index b8c53b4..814aed6 100644 |
| --- a/net/mac80211/trace.h |
| +++ b/net/mac80211/trace.h |
| @@ -3060,6 +3060,27 @@ TRACE_EVENT(stop_queue, |
| ) |
| ); |
| |
| +TRACE_EVENT(bss_color_bitmap, |
| + TP_PROTO(u8 color, |
| + u64 color_bitmap), |
| + |
| + TP_ARGS(color, color_bitmap), |
| + |
| + TP_STRUCT__entry( |
| + __field(u8, color) |
| + __field(u64, color_bitmap) |
| + ), |
| + |
| + TP_fast_assign( |
| + __entry->color = color; |
| + __entry->color_bitmap = color_bitmap; |
| + ), |
| + |
| + TP_printk( |
| + "color=%u color_bitmap=0x%llx", __entry->color, __entry->color_bitmap |
| + ) |
| +); |
| + |
| #endif /* !__MAC80211_DRIVER_TRACE || TRACE_HEADER_MULTI_READ */ |
| |
| #undef TRACE_INCLUDE_PATH |
| -- |
| 2.39.2 |
| |