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mt76x2: debugfs: add sw pulse statistics to dfs debugfs

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

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Lorenzo Bianconi 2018-06-29 13:40:55 +02:00 committed by Kalle Valo
parent b7384e4e0d
commit 4a07ed51ca
3 changed files with 25 additions and 1 deletions
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8
drivers/net/wireless/mediatek/mt76/mt76x2_debugfs.c
View File

@ -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;

11
drivers/net/wireless/mediatek/mt76/mt76x2_dfs.c
View File

@ -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;
}
@ -555,8 +562,10 @@ 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;
}

7
drivers/net/wireless/mediatek/mt76/mt76x2_dfs.h
View File

@ -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;