ath9k: Add tx-failed counter.
This counts any failure during getting packets into
the DMA buffers, including out-of-memory, etc.
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 35d1c8e..9078279 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -529,6 +529,7 @@
PR("hw-put-tx-buf: ", puttxbuf);
PR("hw-tx-start: ", txstart);
PR("hw-tx-proc-desc: ", txprocdesc);
+ PR("TX-Failed: ", txfailed);
len += snprintf(buf + len, size - len,
"%s%11p%11p%10p%10p\n", "txq-memory-address:",
sc->tx.txq_map[WME_AC_BE],
diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h
index 2d47f74..fe2b487 100644
--- a/drivers/net/wireless/ath/ath9k/debug.h
+++ b/drivers/net/wireless/ath/ath9k/debug.h
@@ -113,6 +113,7 @@
* @puttxbuf: Number of times hardware was given txbuf to write.
* @txstart: Number of times hardware was told to start tx.
* @txprocdesc: Number of times tx descriptor was processed
+ * @txfailed: Out-of-memory or other errors in xmit path.
*/
struct ath_tx_stats {
u32 tx_pkts_all;
@@ -135,6 +136,7 @@
u32 puttxbuf;
u32 txstart;
u32 txprocdesc;
+ u32 txfailed;
};
/**
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index eeea81b..5de648c 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1152,6 +1152,7 @@
if (ath_tx_start(hw, skb, &txctl) != 0) {
ath_dbg(common, XMIT, "TX failed\n");
+ TX_STAT_INC(txctl.txq->axq_qnum, txfailed);
goto exit;
}