netdev - [PATCH 0/2] Get rid of ndo_xmit

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Message-Id: <20140825.163458.1117073971092495452.davem@davemloft.net>
Date:	Mon, 25 Aug 2014 16:34:58 -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 0/2] Get rid of ndo_xmit_flush

Given Jesper's performance numbers, it's not the way to go.

Instead, go with a signalling scheme via new boolean skb->xmit_more.

This has several advantages:

1) Nearly trivial driver support, just protect the tail pointer
   update with the skb->xmit_more check.

2) No extra indirect calls in the non-deferral cases.

Signed-off-by: David S. Miller <davem@...emloft.net>
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