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Message-Id: <20140825.163505.1969688661687017343.davem@davemloft.net> Date: Mon, 25 Aug 2014 16:35:05 -0700 (PDT) From: David Miller <davem@...emloft.net> To: netdev@...r.kernel.org Cc: therbert@...gle.com, jhs@...atatu.com, hannes@...essinduktion.org, edumazet@...gle.com, jeffrey.t.kirsher@...el.com, rusty@...tcorp.com.au, dborkman@...hat.com, brouer@...hat.com Subject: [PATCH 2/2] ixgbe: support skb->xmit_more in netdev_ops->ndo_start_xmit() From: Daniel Borkmann <dborkman@...hat.com> 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@...hat.com> Signed-off-by: David S. Miller <davem@...emloft.net> --- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 87bd53f..ba9ceaa 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -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"); -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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