mt76: mt7915: add .sta_add_debugfs support

This generation supports much more per-peer statistics than legacy ones,
so add .sta_add_debugfs accordingly.

This is convenient to set/get more settings/counters in the long run.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
index 2e3f05f..7f67a1a 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
@@ -302,3 +302,68 @@ int mt7915_init_debugfs(struct mt7915_dev *dev)
 
        return 0;
 }
+
+/** per-station debugfs **/
+
+static int
+mt7915_sta_stats_read(struct seq_file *s, void *data)
+{
+       struct ieee80211_sta *sta = s->private;
+       struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
+       struct mt7915_sta_stats *stats = &msta->stats;
+       struct rate_info *rate = &stats->prob_rate;
+       static const char * const bw[] = {
+               "BW20", "BW5", "BW10", "BW40",
+               "BW80", "BW160", "BW_HE_RU"
+       };
+
+       if (!rate->legacy && !rate->flags)
+               return 0;
+
+       seq_puts(s, "Probing rate - ");
+       if (rate->flags & RATE_INFO_FLAGS_MCS)
+               seq_puts(s, "HT ");
+       else if (rate->flags & RATE_INFO_FLAGS_VHT_MCS)
+               seq_puts(s, "VHT ");
+       else if (rate->flags & RATE_INFO_FLAGS_HE_MCS)
+               seq_puts(s, "HE ");
+       else
+               seq_printf(s, "Bitrate %d\n", rate->legacy);
+
+       if (rate->flags) {
+               seq_printf(s, "%s NSS%d MCS%d ",
+                          bw[rate->bw], rate->nss, rate->mcs);
+
+               if (rate->flags & RATE_INFO_FLAGS_SHORT_GI)
+                       seq_puts(s, "SGI ");
+               else if (rate->he_gi)
+                       seq_puts(s, "HE GI ");
+
+               if (rate->he_dcm)
+                       seq_puts(s, "DCM ");
+       }
+
+       seq_printf(s, "\nPPDU PER: %ld.%1ld%%\n",
+                  stats->per / 10, stats->per % 10);
+
+       return 0;
+}
+
+static int
+mt7915_sta_stats_open(struct inode *inode, struct file *f)
+{
+       return single_open(f, mt7915_sta_stats_read, inode->i_private);
+}
+
+static const struct file_operations fops_sta_stats = {
+       .open = mt7915_sta_stats_open,
+       .read = seq_read,
+       .llseek = seq_lseek,
+       .release = single_release,
+};
+
+void mt7915_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+                           struct ieee80211_sta *sta, struct dentry *dir)
+{
+       debugfs_create_file("stats", 0400, dir, sta, &fops_sta_stats);
+}

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
index 0972256..6cb69ae 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
@@ -746,4 +746,7 @@ const struct ieee80211_ops mt7915_ops = {
        .get_antenna = mt76_get_antenna,
        .set_antenna = mt7915_set_antenna,
        .set_coverage_class = mt7915_set_coverage_class,
+#ifdef CONFIG_MAC80211_DEBUGFS
+       .sta_add_debugfs = mt7915_sta_add_debugfs,
+#endif
 };

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
index 92a6bf7..35e34d2 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
@@ -448,5 +448,9 @@ int mt7915_dfs_init_radar_detector(struct mt7915_phy *phy);
 void mt7915_set_stream_he_caps(struct mt7915_phy *phy);
 void mt7915_update_channel(struct mt76_dev *mdev);
 int mt7915_init_debugfs(struct mt7915_dev *dev);
+#ifdef CONFIG_MAC80211_DEBUGFS
+void mt7915_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+                           struct ieee80211_sta *sta, struct dentry *dir);
+#endif
 
 #endif