wil6210: BACK: track last dropped SSN

Track and print on debugfs

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c
index 9c11023..3c3abb6 100644 (file)
--- a/drivers/net/wireless/ath/wil6210/debugfs.c
+++ b/drivers/net/wireless/ath/wil6210/debugfs.c
@@ -745,7 +745,7 @@ static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r)
                else
                        seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_');
        }
-       seq_puts(s, "]\n");
+       seq_printf(s, "] last drop 0x%03x\n", r->ssn_last_drop);
 }
 
 static int wil_sta_debugfs_show(struct seq_file *s, void *data)

diff --git a/drivers/net/wireless/ath/wil6210/rx_reorder.c b/drivers/net/wireless/ath/wil6210/rx_reorder.c
index 747ae12..180ca47 100644 (file)
--- a/drivers/net/wireless/ath/wil6210/rx_reorder.c
+++ b/drivers/net/wireless/ath/wil6210/rx_reorder.c
@@ -116,6 +116,7 @@ void wil_rx_reorder(struct wil6210_priv *wil, struct sk_buff *skb)
 
        /* frame with out of date sequence number */
        if (seq_less(seq, r->head_seq_num)) {
+               r->ssn_last_drop = seq;
                dev_kfree_skb(skb);
                goto out;
        }

diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index ede4c9f..4cbb8ce 100644 (file)
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -304,6 +304,7 @@ struct wil_tid_ampdu_rx {
        u16 ssn;
        u16 buf_size;
        u16 timeout;
+       u16 ssn_last_drop;
        u8 dialog_token;
        bool first_time; /* is it 1-st time this buffer used? */
 };