Commit 8fe676b3 authored by Finn Thain's avatar Finn Thain Committed by David S. Miller
Browse files

net/sonic: Start packet transmission immediately 



Give the transmit command as soon as the transmit descriptor is ready.

Tested-by: default avatarStan Johnson <userm57@yahoo.com>
Signed-off-by: default avatarFinn Thain <fthain@telegraphics.com.au>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 13cfff1a

drivers/net/ethernet/natsemi/sonic.c

+7 −6
Original line number Diff line number Diff line
@@ -311,12 +311,17 @@ static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev) 
	sonic_tda_put(dev, entry, SONIC_TD_LINK,

		sonic_tda_get(dev, entry, SONIC_TD_LINK) | SONIC_EOL);



	sonic_tda_put(dev, lp->eol_tx, SONIC_TD_LINK, ~SONIC_EOL &

		      sonic_tda_get(dev, lp->eol_tx, SONIC_TD_LINK));



	netif_dbg(lp, tx_queued, dev, "%s: issuing Tx command\n", __func__);



	SONIC_WRITE(SONIC_CMD, SONIC_CR_TXP);



	lp->tx_len[entry] = length;

	lp->tx_laddr[entry] = laddr;

	lp->tx_skb[entry] = skb;



	sonic_tda_put(dev, lp->eol_tx, SONIC_TD_LINK,

				  sonic_tda_get(dev, lp->eol_tx, SONIC_TD_LINK) & ~SONIC_EOL);

	lp->eol_tx = entry;



	entry = (entry + 1) & SONIC_TDS_MASK;
@@ -327,10 +332,6 @@ static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev) 
		/* after this packet, wait for ISR to free up some TDAs */

	}



	netif_dbg(lp, tx_queued, dev, "%s: issuing Tx command\n", __func__);



	SONIC_WRITE(SONIC_CMD, SONIC_CR_TXP);



	spin_unlock_irqrestore(&lp->lock, flags);



	return NETDEV_TX_OK;

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