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net: ep93xx_eth stops receiving packets

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Receiving small packet(s) in a fast pace leads to not receiving any
packets at all after some time.

After ethernet packet(s) arrived the receive descriptor is incremented
by the number of frames processed. If another packet arrives while
processing, this is processed in another call of ep93xx_rx. This
second call leads that too many receive descriptors getting released.

This fix increments, even in these case, the right number of processed
receive descriptors.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2010-05-03 23:21:27 -07:00
parent d050700918
commit 1827d2e943
1 changed files with 5 additions and 5 deletions
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10
drivers/net/arm/ep93xx_eth.c
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@ -311,11 +311,6 @@ static int ep93xx_rx(struct net_device *dev, int processed, int budget)
processed++;
}
if (processed) {
wrw(ep, REG_RXDENQ, processed);
wrw(ep, REG_RXSTSENQ, processed);
}
return processed;
}
@ -350,6 +345,11 @@ static int ep93xx_poll(struct napi_struct *napi, int budget)
goto poll_some_more;
}
if (rx) {
wrw(ep, REG_RXDENQ, rx);
wrw(ep, REG_RXSTSENQ, rx);
}
return rx;
}