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Commit 4a07ed51 authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Kalle Valo
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mt76x2: debugfs: add sw pulse statistics to dfs debugfs 



Add sw pattern detector statistics to mt76x2 debugfs.
Moreover track down number of allocated sequence by the detector

Signed-off-by: default avatarLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent b7384e4e

drivers/net/wireless/mediatek/mt76/mt76x2_debugfs.c

+8 −0
Original line number Diff line number Diff line
@@ -91,12 +91,20 @@ mt76x2_dfs_stat_read(struct seq_file *file, void *data) 
	struct mt76x2_dev *dev = file->private;

	struct mt76x2_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;



	seq_printf(file, "allocated sequences:\t%d\n",

		   dfs_pd->seq_stats.seq_pool_len);

	seq_printf(file, "used sequences:\t\t%d\n",

		   dfs_pd->seq_stats.seq_len);

	seq_puts(file, "\n");



	for (i = 0; i < MT_DFS_NUM_ENGINES; i++) {

		seq_printf(file, "engine: %d\n", i);

		seq_printf(file, "  hw pattern detected:\t%d\n",

			   dfs_pd->stats[i].hw_pattern);

		seq_printf(file, "  hw pulse discarded:\t%d\n",

			   dfs_pd->stats[i].hw_pulse_discarded);

		seq_printf(file, "  sw pattern detected:\t%d\n",

			   dfs_pd->stats[i].sw_pattern);

	}



	return 0;

drivers/net/wireless/mediatek/mt76/mt76x2_dfs.c

+10 −1
Original line number Diff line number Diff line
@@ -165,6 +165,9 @@ static void mt76x2_dfs_seq_pool_put(struct mt76x2_dev *dev, 
	struct mt76x2_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;



	list_add(&seq->head, &dfs_pd->seq_pool);



	dfs_pd->seq_stats.seq_pool_len++;

	dfs_pd->seq_stats.seq_len--;

}



static
@@ -180,7 +183,11 @@ struct mt76x2_dfs_sequence *mt76x2_dfs_seq_pool_get(struct mt76x2_dev *dev) 
				       struct mt76x2_dfs_sequence,

				       head);

		list_del(&seq->head);

		dfs_pd->seq_stats.seq_pool_len--;

	}

	if (seq)

		dfs_pd->seq_stats.seq_len++;



	return seq;

}
@@ -555,9 +562,11 @@ static bool mt76x2_dfs_check_detection(struct mt76x2_dev *dev) 
		return false;



	list_for_each_entry(seq, &dfs_pd->sequences, head) {

		if (seq->count > MT_DFS_SEQUENCE_TH)

		if (seq->count > MT_DFS_SEQUENCE_TH) {

			dfs_pd->stats[seq->engine].sw_pattern++;

			return true;

		}

	}

	return false;

}

drivers/net/wireless/mediatek/mt76/mt76x2_dfs.h

+7 −0
Original line number Diff line number Diff line
@@ -109,6 +109,12 @@ struct mt76x2_dfs_sw_detector_params { 
struct mt76x2_dfs_engine_stats {

	u32 hw_pattern;

	u32 hw_pulse_discarded;

	u32 sw_pattern;

};



struct mt76x2_dfs_seq_stats {

	u32 seq_pool_len;

	u32 seq_len;

};



struct mt76x2_dfs_pattern_detector {
@@ -122,6 +128,7 @@ struct mt76x2_dfs_pattern_detector { 


	struct list_head sequences;

	struct list_head seq_pool;

	struct mt76x2_dfs_seq_stats seq_stats;



	unsigned long last_sw_check;

	u32 last_event_ts;