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Commit 4403b371 authored by Benjamin LaHaise's avatar Benjamin LaHaise Committed by David S. Miller
Browse files

vxge: don't drop frame on tx queue full 



The vxge driver will drop a packet in its transmit function if the number
of TxDs available hits 0.  Instead of doing that, simply stop the transmit
queue when transmitting a packet with the last available TxD.

Signed-off-by: default avatarBenjamin LaHaise <ben.lahaise@neterion.com>
Signed-off-by: default avatarSreenivasa Honnur <sreenivasa.honnur@neterion.com>
Signed-off-by: default avatarRamkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 36e89d73

drivers/net/vxge/vxge-main.c

+6 −0
Original line number Diff line number Diff line
@@ -895,6 +895,12 @@ vxge_xmit(struct sk_buff *skb, struct net_device *dev) 
		goto _exit2;

	}



	/* Last TXD?  Stop tx queue to avoid dropping packets.  TX

	 * completion will resume the queue.

	 */

	if (avail == 1)

		vxge_stop_tx_queue(fifo);



	status = vxge_hw_fifo_txdl_reserve(fifo_hw, &dtr, &dtr_priv);

	if (unlikely(status != VXGE_HW_OK)) {

		vxge_debug_tx(VXGE_ERR,