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de2104x: force correct order when writing to rx ring

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DescOwn should not be set, thus allowing the chip to use the
descriptor, before everything else is set up correctly.

Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Risto Suominen 2009-02-08 17:50:34 -08:00 committed by David S. Miller
parent cfbf84fcbc
commit b991d2bc4a
1 changed files with 2 additions and 1 deletions
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3
drivers/net/tulip/de2104x.c
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@ -464,13 +464,14 @@ static void de_rx (struct de_private *de)
drop = 1;
rx_next:
de->rx_ring[rx_tail].opts1 = cpu_to_le32(DescOwn);
if (rx_tail == (DE_RX_RING_SIZE - 1))
de->rx_ring[rx_tail].opts2 =
cpu_to_le32(RingEnd | de->rx_buf_sz);
else
de->rx_ring[rx_tail].opts2 = cpu_to_le32(de->rx_buf_sz);
de->rx_ring[rx_tail].addr1 = cpu_to_le32(mapping);
wmb();
de->rx_ring[rx_tail].opts1 = cpu_to_le32(DescOwn);
rx_tail = NEXT_RX(rx_tail);
}