ath9k: Add more information to debugfs xmit file.

Should help debug strange tx lockup type issues.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 27 insertions, 2 deletions

diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 5075faa618d3..577bc5a9835b 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -599,13 +599,25 @@ do {									\
                         (unsigned int)(sc->tx.txq[WME_AC_VO].elem));    \
 } while(0)
 
+#define PRQLE(str, elem)                                                \
+do {                                                                    \
+        len += snprintf(buf + len, size - len,                          \
+                        "%s%13i%11i%10i%10i\n", str,                    \
+                        list_empty(&sc->tx.txq[WME_AC_BE].elem),        \
+                        list_empty(&sc->tx.txq[WME_AC_BK].elem),        \
+                        list_empty(&sc->tx.txq[WME_AC_VI].elem),        \
+                        list_empty(&sc->tx.txq[WME_AC_VO].elem));       \
+} while (0)
+
 static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
                               size_t count, loff_t *ppos)
 {
         struct ath_softc *sc = file->private_data;
         char *buf;
-        unsigned int len = 0, size = 2048;
+        unsigned int len = 0, size = 4000;
+        int i;
         ssize_t retval = 0;
+        char tmp[32];
 
         buf = kzalloc(size, GFP_KERNEL);
         if (buf == NULL)
@@ -628,13 +640,26 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
         PR("DELIM Underrun:  ", delim_underrun);
         PR("TX-Pkts-All:     ", tx_pkts_all);
         PR("TX-Bytes-All:    ", tx_bytes_all);
+        PR("hw-put-tx-buf:   ", puttxbuf);
+        PR("hw-tx-start:     ", txstart);
+        PR("hw-tx-proc-desc: ", txprocdesc);
 
         PRX("axq-qnum:        ", axq_qnum);
         PRX("axq-depth:       ", axq_depth);
+        PRX("axq-ampdu_depth: ", axq_ampdu_depth);
         PRX("axq-stopped      ", stopped);
         PRX("tx-in-progress   ", axq_tx_inprogress);
         PRX("pending-frames   ", pending_frames);
-
+        PRX("txq_headidx:     ", txq_headidx);
+        PRX("txq_tailidx:     ", txq_headidx);
+
+        PRQLE("axq_q empty:       ", axq_q);
+        PRQLE("axq_acq empty:     ", axq_acq);
+        PRQLE("txq_fifo_pending:  ", txq_fifo_pending);
+        for (i = 0; i < ATH_TXFIFO_DEPTH; i++) {
+                snprintf(tmp, sizeof(tmp) - 1, "txq_fifo[%i] empty: ", i);
+                PRQLE(tmp, txq_fifo[i]);
+        }
         if (len > size)
                 len = size;