Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 2c7c9ea4 authored by Prashant Sreedharan's avatar Prashant Sreedharan Committed by David S. Miller
Browse files

tg3: Add skb->xmit_more support 



Ring TX doorbell only if xmit_more is not set or the queue is stopped.

Suggested-by: default avatarDaniel Borkmann <dborkman@redhat.com>
Signed-off-by: default avatarPrashant Sreedharan <prashant@broadcom.com>
Signed-off-by: default avatarMichael Chan <mchan@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f76936d0

drivers/net/ethernet/broadcom/tg3.c

+6 −4
Original line number Diff line number Diff line
@@ -8099,9 +8099,6 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev) 
	/* Sync BD data before updating mailbox */

	wmb();



	/* Packets are ready, update Tx producer idx local and on card. */

	tw32_tx_mbox(tnapi->prodmbox, entry);



	tnapi->tx_prod = entry;

	if (unlikely(tg3_tx_avail(tnapi) <= (MAX_SKB_FRAGS + 1))) {

		netif_tx_stop_queue(txq);
@@ -8116,7 +8113,12 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev) 
			netif_tx_wake_queue(txq);

	}



	if (!skb->xmit_more || netif_xmit_stopped(txq)) {

		/* Packets are ready, update Tx producer idx on card. */

		tw32_tx_mbox(tnapi->prodmbox, entry);

		mmiowb();

	}



	return NETDEV_TX_OK;



dma_error: