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Message-ID: <1289328007.5567.24.camel@achroite.uk.solarflarecom.com> Date: Tue, 09 Nov 2010 18:40:07 +0000 From: Ben Hutchings <bhutchings@...arflare.com> To: Kevin Wilson <wkevils@...il.com> Cc: netdev@...r.kernel.org Subject: Re: alloc_netdev_mq() and multiqueues On Tue, 2010-11-09 at 20:33 +0200, Kevin Wilson wrote: > Hello, > I have a short question about multiqueues and I will appreciate if > somebody can answer shortly in 2-3 sentences. > When talking about multiqueues I refer for example, to > http://nfws.edenwall.com/nfws_userday/David-Miller_Linux-Multiqueue-Networking.pdf, > alloc_netdev_mq() and friends. > > 1) Does an ordinary network driver code can be adjusted to use > multiqueues ? or do we need some > special hardware feature ? This feature is only useful if the hardware has multiple transmit queues. > 2) How can I know if a certain device support multiqueus?\ Read the hardware specs. > 3) Can anybody name some network cards which support multiqueues? 'git grep -l dev_mq drivers/net' will show you which drivers do. I have no knowledge beyond this of which hardware has multiple queues. Ben. -- Ben Hutchings, Senior Software Engineer, Solarflare Communications Not speaking for my employer; that's the marketing department's job. They asked us to note that Solarflare product names are trademarked. -- 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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