netdev - Re: [PATCH 16/16] c_can: fix TX packet accounting

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Date:	Mon, 09 Sep 2013 12:31:02 +0200
From:	Marc Kleine-Budde <mkl@...gutronix.de>
To:	Benedikt Spranger <b.spranger@...utronix.de>
CC:	netdev@...r.kernel.org,
	Alexander Frank <Alexander.Frank@...rspaecher.com>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Holger Dengler <dengler@...utronix.de>,
	"linux-can@...r.kernel.org" <linux-can@...r.kernel.org>
Subject: Re: [PATCH 16/16] c_can: fix TX packet accounting

On 09/09/2013 09:25 AM, Benedikt Spranger wrote:
> Due to the integration of the FlexCard support the TX stats accounting got
> lost. Readd the accounting.

Please squash into the appropriate patch.

Marc

> Signed-off-by: Benedikt Spranger <b.spranger@...utronix.de>
> ---
>  drivers/net/can/c_can/c_can.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
> index 92c1444..b409cf2 100644
> --- a/drivers/net/can/c_can/c_can.c
> +++ b/drivers/net/can/c_can/c_can.c
> @@ -619,6 +619,7 @@ static netdev_tx_t c_can_start_xmit(struct sk_buff *skb,
>  	u32 msg_obj_no;
>  	struct c_can_priv *priv = netdev_priv(dev);
>  	struct can_frame *frame = (struct can_frame *)skb->data;
> +	struct net_device_stats *stats = &dev->stats;
>  	int tx_fifo, txie_off;
>  
>  	if (can_dropped_invalid_skb(dev, skb))
> @@ -664,6 +665,9 @@ static netdev_tx_t c_can_start_xmit(struct sk_buff *skb,
>  		ctrl = readl(priv->base + FC_TXFIFO_CTRL);
>  		ctrl |= FC_TXFIFO_CTRL_REQ;
>  		writel(ctrl, priv->base + FC_TXFIFO_CTRL);
> +
> +		stats->tx_bytes += frame->can_dlc;
> +		stats->tx_packets++;
>  		kfree_skb(skb);
>  	} else {
>  		msg_obj_no = get_tx_next_msg_obj(priv);
> @@ -672,6 +676,8 @@ static netdev_tx_t c_can_start_xmit(struct sk_buff *skb,
>  		c_can_write_msg_object(dev, 0, frame, msg_obj_no, txie_off);
>  		priv->tx_next++;
>  
> +		stats->tx_bytes += frame->can_dlc;
> +		stats->tx_packets++;
>  		can_put_echo_skb(skb, dev, msg_obj_no - C_CAN_MSG_OBJ_TX_FIRST);
>  		/* we have to stop the queue in case of a wrap around or
>  		 * if the next TX message object is still in use
> 


-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
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