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>
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 5075faa..577bc5a 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -599,13 +599,25 @@
(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 @@
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;