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ixgbe: support skb->xmit_more in netdev_ops->ndo_start_xmit() 

This implements the deferred tail pointer flush API for the ixgbe
driver. Similar version also proposed longer time ago by Alexander Duyck.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Daniel Borkmann 2014-08-24 15:42:16 +02:00 committed by David S. Miller
parent 0b725a2ca6
commit 9c938cddc0
1 changed files with 4 additions and 3 deletions
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7
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
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@ -6958,9 +6958,10 @@ static void ixgbe_tx_map(struct ixgbe_ring *tx_ring,
tx_ring->next_to_use = i;
/* notify HW of packet */
ixgbe_write_tail(tx_ring, i);
if (!skb->xmit_more) {
/* notify HW of packet */
ixgbe_write_tail(tx_ring, i);
}
return;
dma_error:
dev_err(tx_ring->dev, "TX DMA map failed\n");