linux-kernel - [PATCH net-next v2 05/10] forcedeth: stats for rx

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Date:	Thu, 10 Nov 2011 17:31:30 -0800
From:	David Decotigny <david.decotigny@...gle.com>
To:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	"David S. Miller" <davem@...emloft.net>,
	Ian Campbell <ian.campbell@...rix.com>,
	Eric Dumazet <eric.dumazet@...il.com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
	Ben Hutchings <bhutchings@...arflare.com>,
	Jiri Pirko <jpirko@...hat.com>, Joe Perches <joe@...ches.com>,
	Szymon Janc <szymon@...c.net.pl>,
	David Decotigny <david.decotigny@...gle.com>
Subject: [PATCH net-next v2 05/10] forcedeth: stats for rx_packets based on hardware registers

Use the hardware registers instead of a software implementation to
account for the number of RX packets.



Signed-off-by: David Decotigny <david.decotigny@...gle.com>
---
 drivers/net/ethernet/nvidia/forcedeth.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c
index 10d1e37..1a1972b 100644
--- a/drivers/net/ethernet/nvidia/forcedeth.c
+++ b/drivers/net/ethernet/nvidia/forcedeth.c
@@ -1722,6 +1722,7 @@ static struct net_device_stats *nv_get_stats(struct net_device *dev)
 			dev->stats.tx_packets = np->estats.tx_packets;
 			dev->stats.rx_bytes = np->estats.rx_bytes;
 		}
+		dev->stats.rx_packets = np->estats.rx_packets;
 		dev->stats.tx_bytes = np->estats.tx_bytes;
 		dev->stats.tx_fifo_errors = np->estats.tx_fifo_errors;
 		dev->stats.tx_carrier_errors = np->estats.tx_carrier_errors;
@@ -2709,7 +2710,6 @@ static int nv_rx_process(struct net_device *dev, int limit)
 		skb_put(skb, len);
 		skb->protocol = eth_type_trans(skb, dev);
 		napi_gro_receive(&np->napi, skb);
-		dev->stats.rx_packets++;
 		if (unlikely(!(np->driver_data & DEV_HAS_STATISTICS_V23)))
 			dev->stats.rx_bytes += len;
 next_pkt:
@@ -2794,7 +2794,6 @@ static int nv_rx_process_optimized(struct net_device *dev, int limit)
 				__vlan_hwaccel_put_tag(skb, vid);
 			}
 			napi_gro_receive(&np->napi, skb);
-			dev->stats.rx_packets++;
 			if (unlikely(!(np->driver_data
 				       & DEV_HAS_STATISTICS_V23)))
 				dev->stats.rx_bytes += len;
-- 
1.7.3.1

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