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Date:	Sat, 14 May 2016 14:55:49 +0900
From:	Akinobu Mita <>
Cc:	Akinobu Mita <>,
	Mike Sinkovsky <>,
	"David S . Miller" <>
Subject: [PATCH -next v2 3/4] net: w5100: increase TX timeout period

This increases TX timeout period from one second to 5 seconds which is
the default value if the driver doesn't explicitly set

The one second timeout is too short for W5100 with SPI interface mode
which doesn't support burst READ/WRITE processing in the SPI transfer.
If the packet is transmitted while RX packets are being received at a
very high rate, the TX transmittion work in the workqueue is delayed
and the watchdog timer is expired.

Signed-off-by: Akinobu Mita <>
Cc: Mike Sinkovsky <>
Cc: David S. Miller <>
* v2
- Remove the watchdong_timeo assignment to set default tx timeout,
  suggested by David Miller.

 drivers/net/ethernet/wiznet/w5100.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/wiznet/w5100.c b/drivers/net/ethernet/wiznet/w5100.c
index c80438c..43fdf88 100644
--- a/drivers/net/ethernet/wiznet/w5100.c
+++ b/drivers/net/ethernet/wiznet/w5100.c
@@ -1142,7 +1142,6 @@ int w5100_probe(struct device *dev, const struct w5100_ops *ops,
 	ndev->netdev_ops = &w5100_netdev_ops;
 	ndev->ethtool_ops = &w5100_ethtool_ops;
-	ndev->watchdog_timeo = HZ;
 	netif_napi_add(ndev, &priv->napi, w5100_napi_poll, 16);
 	/* This chip doesn't support VLAN packets with normal MTU,

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