diff options
| author | Sujith <Sujith.Manoharan@atheros.com> | 2010-04-16 11:54:00 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-04-16 15:47:11 -0400 |
| commit | eac8e385e9446e591aacbc9ef2c2a3b0836dd2d4 (patch) | |
| tree | 5484400ffd79db6811cedd2b779b0d69ede2a238 | |
| parent | 0daa3e3a7d85d70cdd4d9cc8e589e79a4a37a5ef (diff) | |
ath9k_htc: Add dropped SKB count to debugfs
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/hif_usb.c | 13 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/htc.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/htc_drv_main.c | 3 |
3 files changed, 13 insertions, 4 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c index fe994e229898..3091bb3cef9b 100644 --- a/drivers/net/wireless/ath/ath9k/hif_usb.c +++ b/drivers/net/wireless/ath/ath9k/hif_usb.c @@ -129,6 +129,7 @@ static void hif_usb_tx_cb(struct urb *urb) TX_STAT_INC(skb_completed); } else { dev_kfree_skb_any(skb); + TX_STAT_INC(skb_dropped); } } @@ -149,11 +150,15 @@ static void hif_usb_tx_cb(struct urb *urb) } } -static inline void ath9k_skb_queue_purge(struct sk_buff_head *list) +static inline void ath9k_skb_queue_purge(struct hif_device_usb *hif_dev, + struct sk_buff_head *list) { struct sk_buff *skb; - while ((skb = __skb_dequeue(list)) != NULL) + + while ((skb = __skb_dequeue(list)) != NULL) { dev_kfree_skb_any(skb); + TX_STAT_INC(skb_dropped); + } } /* TX lock has to be taken */ @@ -214,7 +219,7 @@ static int __hif_usb_tx(struct hif_device_usb *hif_dev) ret = usb_submit_urb(tx_buf->urb, GFP_ATOMIC); if (ret) { tx_buf->len = tx_buf->offset = 0; - ath9k_skb_queue_purge(&tx_buf->skb_queue); + ath9k_skb_queue_purge(hif_dev, &tx_buf->skb_queue); __skb_queue_head_init(&tx_buf->skb_queue); list_move_tail(&tx_buf->list, &hif_dev->tx.tx_buf); hif_dev->tx.tx_buf_cnt++; @@ -281,7 +286,7 @@ static void hif_usb_stop(void *hif_handle, u8 pipe_id) unsigned long flags; spin_lock_irqsave(&hif_dev->tx.tx_lock, flags); - ath9k_skb_queue_purge(&hif_dev->tx.tx_skb_queue); + ath9k_skb_queue_purge(hif_dev, &hif_dev->tx.tx_skb_queue); hif_dev->tx.tx_skb_cnt = 0; hif_dev->tx.flags |= HIF_USB_TX_STOP; spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags); diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h index 78213fc71b09..6a4614a8701b 100644 --- a/drivers/net/wireless/ath/ath9k/htc.h +++ b/drivers/net/wireless/ath/ath9k/htc.h @@ -261,6 +261,7 @@ struct ath_tx_stats { u32 buf_completed; u32 skb_queued; u32 skb_completed; + u32 skb_dropped; }; struct ath_rx_stats { diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c index 2cea577f884d..081f44504285 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c @@ -609,6 +609,9 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf, len += snprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n", "SKBs completed", priv->debug.tx_stats.skb_completed); + len += snprintf(buf + len, sizeof(buf) - len, + "%20s : %10u\n", "SKBs dropped", + priv->debug.tx_stats.skb_dropped); return simple_read_from_buffer(user_buf, count, ppos, buf, len); } |