netdev - Re: [PATCH net-next 5/9] net: network drivers no longer need to implement ndo_busy

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Message-ID: <1447776204.22599.114.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Tue, 17 Nov 2015 08:03:24 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Eliezer Tamir <eliezer.tamir@...ux.intel.com>
Cc:	Eric Dumazet <edumazet@...gle.com>,
	"David S . Miller" <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>, Eli Cohen <eli@...lanox.com>,
	Amir Vadai <amirv@...lanox.com>,
	Ariel Elior <ariel.elior@...gic.com>,
	Willem de Bruijn <willemb@...gle.com>,
	Rida Assaf <rida@...gle.com>
Subject: Re: [PATCH net-next 5/9] net: network drivers no longer need to
 implement ndo_busy_poll()

On Tue, 2015-11-17 at 07:33 -0800, Eric Dumazet wrote:

> This is exactly what I suggested in the changelog ;)

In v2 I am adding a patch to move skb_mark_napi_id() out of drivers into
net core stack (napi_gro_receive() & napi_gro_frags())

But adding the rcu stuff in napi_napi_del() wont be a trivial patch.

Also, mlx4 uses a NAPI for TX completions only, I suspect other drivers
might do the same, so we would fill napi_hash[] with napi contexts that
would not be used in RX at all.


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