netdev - RE: [PATCH] NET: Multiple queue hardware support

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Message-ID: <D5C1322C3E673F459512FB59E0DDC32903111FA4@orsmsx414.amr.corp.intel.com>
Date:	Wed, 20 Jun 2007 10:21:00 -0700
From:	"Waskiewicz Jr, Peter P" <peter.p.waskiewicz.jr@...el.com>
To:	"Jan-Bernd Themann" <ossthema@...ibm.com>
Cc:	"netdev" <netdev@...r.kernel.org>,
	"Christoph Raisch" <raisch@...ibm.com>,
	"Thomas Klein" <osstklei@...ibm.com>,
	"Jan-Bernd Themann" <themann@...ibm.com>
Subject: RE: [PATCH] NET: Multiple queue hardware support

> to me it seems that this patch set only include multiple 
> transmit queue support (for qdisc). Am I right with this 
> observation? If so, are there also plans to support multiple 
> receive queues to allow the queues to be processed in 
> parallel on different CPUs via a standard interface? 
> Currently, some drivers use "fake netdevices" to feed 
> netif_rx_schedule().
> 
> Thanks,
> Jan-Bernd

Jan,
	Yes, these patches are for transmit multiqueue hardware support
only.  There are other efforts to stop using the fake netdevices for Rx
polling, such as using MSI-X vectors assigned to particular receive
queues, but this is still done in the driver (which is ok).  I'm
currently not working on anything in the kernel to support multiqueue Rx
for non MSI-X devices though.

Thanks,
-PJ Waskiewicz
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