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Commit a5a0bca1 authored by Ben Greear's avatar Ben Greear Committed by John W. Linville
Browse files

ath9k: Add tx-failed counter. 



This counts any failure during getting packets into
the DMA buffers, including out-of-memory, etc.

Signed-off-by: default avatarBen Greear <greearb@candelatech.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 56dc389f

drivers/net/wireless/ath/ath9k/debug.c

+1 −0
Original line number Diff line number Diff line
@@ -529,6 +529,7 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf, 
	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],

drivers/net/wireless/ath/ath9k/debug.h

+2 −0
Original line number Diff line number Diff line
@@ -113,6 +113,7 @@ struct ath_interrupt_stats { 
 * @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 @@ struct ath_tx_stats { 
	u32 puttxbuf;

	u32 txstart;

	u32 txprocdesc;

	u32 txfailed;

};



/**

drivers/net/wireless/ath/ath9k/main.c

+1 −0
Original line number Diff line number Diff line
@@ -1152,6 +1152,7 @@ static void ath9k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) 


	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;

	}