netdev - [PATCH 05/11] fec_mpc52xx: enable transmit and receive time stamping.

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Date:	Sun, 19 Jun 2011 13:20:01 +0200
From:	Richard Cochran <richardcochran@...il.com>
To:	<netdev@...r.kernel.org>
Cc:	David Miller <davem@...emloft.net>,
	Grant Likely <grant.likely@...retlab.ca>
Subject: [PATCH 05/11] fec_mpc52xx: enable transmit and receive time stamping.

This patch enables software (and phy device) time stamping. Software
time stamping using the SO_TIMESTAMPING API was tested and found to be
working on the LITE5200B board.

Cc: Grant Likely <grant.likely@...retlab.ca>
Signed-off-by: Richard Cochran <richard.cochran@...cron.at>
---
 drivers/net/fec_mpc52xx.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/net/fec_mpc52xx.c b/drivers/net/fec_mpc52xx.c
index 9f81b1a..102bdbc 100644
--- a/drivers/net/fec_mpc52xx.c
+++ b/drivers/net/fec_mpc52xx.c
@@ -337,6 +337,7 @@ static int mpc52xx_fec_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	bcom_submit_next_buffer(priv->tx_dmatsk, skb);
 	spin_unlock_irqrestore(&priv->lock, flags);
+	skb_tx_timestamp(skb);
 
 	if (bcom_queue_full(priv->tx_dmatsk)) {
 		netif_stop_queue(dev);
@@ -434,7 +435,8 @@ static irqreturn_t mpc52xx_fec_rx_interrupt(int irq, void *dev_id)
 		length = status & BCOM_FEC_RX_BD_LEN_MASK;
 		skb_put(rskb, length - 4);	/* length without CRC32 */
 		rskb->protocol = eth_type_trans(rskb, dev);
-		netif_rx(rskb);
+		if (!skb_defer_rx_timestamp(skb))
+			netif_rx(rskb);
 
 		spin_lock(&priv->lock);
 	}
-- 
1.7.0.4

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