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authorLi Yang <leoli@freescale.com>2007-03-06 16:53:46 +0800
committerJeff Garzik <jeff@garzik.org>2007-03-06 06:10:01 -0500
commita394f013f05ba083d8547551280e0309ca70b08d (patch)
tree59882986e88fc194bafeb0b6708b98ec5e117be2 /drivers/net
parent6006f7f517b9a754e4c4628755c62872e322c68a (diff)
ucc_geth: Fix BD processing
Fix broken BD processing code. Signed-off-by: Michael Barkowski <michael.barkowski@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ucc_geth.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c
index 885e73d731c..639e1e6913b 100644
--- a/drivers/net/ucc_geth.c
+++ b/drivers/net/ucc_geth.c
@@ -3598,9 +3598,9 @@ static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
/* Move to next BD in the ring */
if (!(bd_status & T_W))
- ugeth->txBd[txQ] = bd + sizeof(struct qe_bd);
+ bd += sizeof(struct qe_bd);
else
- ugeth->txBd[txQ] = ugeth->p_tx_bd_ring[txQ];
+ bd = ugeth->p_tx_bd_ring[txQ];
/* If the next BD still needs to be cleaned up, then the bds
are full. We need to tell the kernel to stop sending us stuff. */
@@ -3609,6 +3609,8 @@ static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
netif_stop_queue(dev);
}
+ ugeth->txBd[txQ] = bd;
+
if (ugeth->p_scheduler) {
ugeth->cpucount[txQ]++;
/* Indicate to QE that there are more Tx bds ready for
@@ -3722,7 +3724,7 @@ static int ucc_geth_tx(struct net_device *dev, u8 txQ)
/* Handle the transmitted buffer and release */
/* the BD to be used with the current frame */
- if ((bd = ugeth->txBd[txQ]) && (netif_queue_stopped(dev) == 0))
+ if ((bd == ugeth->txBd[txQ]) && (netif_queue_stopped(dev) == 0))
break;
ugeth->stats.tx_packets++;
@@ -3741,10 +3743,12 @@ static int ucc_geth_tx(struct net_device *dev, u8 txQ)
/* Advance the confirmation BD pointer */
if (!(bd_status & T_W))
- ugeth->confBd[txQ] += sizeof(struct qe_bd);
+ bd += sizeof(struct qe_bd);
else
- ugeth->confBd[txQ] = ugeth->p_tx_bd_ring[txQ];
+ bd = ugeth->p_tx_bd_ring[txQ];
+ bd_status = in_be32((u32 *)bd);
}
+ ugeth->confBd[txQ] = bd;
return 0;
}