netdev - Re: [PATCH] af_packet: Add Queue mapping mode to af

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Date:	Wed, 22 Jan 2014 17:08:12 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Daniel Borkmann <dborkman@...hat.com>
Cc:	Neil Horman <nhorman@...driver.com>, netdev@...r.kernel.org,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH] af_packet: Add Queue mapping mode to af_packet fanout
 operation

On Wed, 2014-01-22 at 23:00 +0100, Daniel Borkmann wrote:
> On 01/22/2014 10:01 PM, Neil Horman wrote:
> > This patch adds a queue mapping mode to the fanout operation of af_packet
> > sockets.  This allows user space af_packet users to better filter on flows
> > ingressing and egressing via a specific hardware queue, and avoids the potential
> 
> Maybe I'm missing something, but I currently cannot find where this is
> being filled out for ingress path? Egress, ok, this gets filled out
> somewhere in protocol layers or elsewhere and is being locally pushed
> back through dev_queue_xmit_nit(), but I think main use case is ingress
> through packet fanout. In driver layer I can find skb->rxhash filled out
> which would then be PACKET_FANOUT_HASH.
> (Otherwise patch looks good.)


Check for various multiqueue drivers calling skb_record_rx_queue()



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