From: Thomas Lange <thomas@corelatus.se>
To: netdev@vger.kernel.org
Cc: "davinci-linux-open-source@linux.davincidsp.com"
<davinci-linux-open-source@linux.davincidsp.com>,
davem@davemloft.net, anantgole@ti.com, chaithrika@ti.com
Subject: [PATCH] Davinci: Do not reset EMAC TX overruns counter on read
Date: Wed, 09 Mar 2011 15:41:16 +0100 [thread overview]
Message-ID: <4D77918C.9050800@corelatus.se> (raw)
Don't reset tx_fifo_errors when reading out current EMAC stats.
(tx_fifo_errors shows up as TX overruns in netdev stats.)
Without this correction, the old counter value is lost every time
stats are read out.
Signed-off-by: Thomas Lange <thomas@corelatus.se>
---
drivers/net/davinci_emac.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index 2a628d1..922c8c5 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -1730,7 +1730,7 @@ static struct net_device_stats *emac_dev_getnetstats(struct net_device *ndev)
emac_read(EMAC_TXCARRIERSENSE);
emac_write(EMAC_TXCARRIERSENSE, stats_clear_mask);
- ndev->stats.tx_fifo_errors = emac_read(EMAC_TXUNDERRUN);
+ ndev->stats.tx_fifo_errors += emac_read(EMAC_TXUNDERRUN);
emac_write(EMAC_TXUNDERRUN, stats_clear_mask);
return &ndev->stats;
--
1.7.2.5
reply other threads:[~2011-03-09 14:41 UTC|newest]
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