[][mac80211][wifi6][mt76][Update debugfs knob for token]
[Description]
Add pending time in debugfs to check if token leak or not.
[Release-log]
N/A
Change-Id: I5a5f528b3a906095c9865b84017e8bfc0c246f1f
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7939951
diff --git a/autobuild_mac80211_release/package/kernel/mt76/patches/1038-wifi-mt76-update-debugfs-knob-to-dump-token-pending-.patch b/autobuild_mac80211_release/package/kernel/mt76/patches/1038-wifi-mt76-update-debugfs-knob-to-dump-token-pending-.patch
new file mode 100644
index 0000000..e05e710
--- /dev/null
+++ b/autobuild_mac80211_release/package/kernel/mt76/patches/1038-wifi-mt76-update-debugfs-knob-to-dump-token-pending-.patch
@@ -0,0 +1,76 @@
+From 47058b5552a9597c2dad3e45b3d0396a5b69dfd7 Mon Sep 17 00:00:00 2001
+From: Peter Chiu <chui-hao.chiu@mediatek.com>
+Date: Tue, 29 Aug 2023 09:22:18 +0800
+Subject: [PATCH] wifi: mt76: update debugfs knob to dump token pending time
+
+Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
+---
+ mt76.h | 2 ++
+ mt7915/mac.c | 6 ++++++
+ mt7915/mtk_debugfs.c | 6 ++----
+ 3 files changed, 10 insertions(+), 4 deletions(-)
+
+diff --git a/mt76.h b/mt76.h
+index aece4eca..9237b22e 100644
+--- a/mt76.h
++++ b/mt76.h
+@@ -365,6 +365,8 @@ struct mt76_txwi_cache {
+ struct list_head list;
+ dma_addr_t dma_addr;
+
++ unsigned long jiffies;
++
+ union {
+ struct sk_buff *skb;
+ void *ptr;
+diff --git a/mt7915/mac.c b/mt7915/mac.c
+index 21e8383a..67b42006 100644
+--- a/mt7915/mac.c
++++ b/mt7915/mac.c
+@@ -802,6 +802,8 @@ int mt7915_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
+ if (id < 0)
+ return id;
+
++ t->jiffies = jiffies;
++
+ pid = mt76_tx_status_skb_add(mdev, wcid, tx_info->skb);
+ mt7915_mac_write_txwi(mdev, txwi_ptr, tx_info->skb, wcid, pid, key,
+ qid, 0);
+@@ -1000,6 +1002,8 @@ mt7915_mac_tx_free(struct mt7915_dev *dev, void *data, int len)
+ if (!txwi)
+ continue;
+
++ txwi->jiffies = 0;
++
+ mt76_connac2_txwi_free(mdev, txwi, sta, &free_list);
+ }
+ }
+@@ -1032,6 +1036,8 @@ mt7915_mac_tx_free_v0(struct mt7915_dev *dev, void *data, int len)
+ if (!txwi)
+ continue;
+
++ txwi->jiffies = 0;
++
+ mt76_connac2_txwi_free(mdev, txwi, NULL, &free_list);
+ }
+
+diff --git a/mt7915/mtk_debugfs.c b/mt7915/mtk_debugfs.c
+index 80b7bc1a..46f1b0b6 100644
+--- a/mt7915/mtk_debugfs.c
++++ b/mt7915/mtk_debugfs.c
+@@ -2211,10 +2211,8 @@ static int mt7915_token_read(struct seq_file *s, void *data)
+ seq_printf(s, "Cut through token:\n");
+ spin_lock_bh(&dev->mt76.token_lock);
+ idr_for_each_entry(&dev->mt76.token, txwi, id) {
+- seq_printf(s, "%4d ", id);
+- count++;
+- if (count % 8 == 0)
+- seq_printf(s, "\n");
++ seq_printf(s, "%4d (token pending %u ms)\n", id,
++ jiffies_to_msecs(jiffies - txwi->jiffies));
+ }
+ spin_unlock_bh(&dev->mt76.token_lock);
+ seq_printf(s, "\n");
+--
+2.18.0
+