From: "Richardson, Bruce" <bruce.richardson@intel.com>
To: "John W. Linville" <linville@tuxdriver.com>,
Chris Wright <chrisw@redhat.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [RFC] librte_pmd_packet: add PMD for AF_PACKET-based virtual devices
Date: Fri, 6 Jun 2014 20:04:54 +0000 [thread overview]
Message-ID: <59AF69C657FD0841A61C55336867B5B01AA33300@IRSMSX103.ger.corp.intel.com> (raw)
In-Reply-To: <20140606195706.GB13595@tuxdriver.com>
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of John W. Linville
> Sent: Friday, June 06, 2014 12:57 PM
> To: Chris Wright
> Cc: dev@dpdk.org
> Subject: Re: [dpdk-dev] [RFC] librte_pmd_packet: add PMD for AF_PACKET-
> based virtual devices
>
> On Fri, Jun 06, 2014 at 12:47:48PM -0700, Chris Wright wrote:
> > * John W. Linville (linville@tuxdriver.com) wrote:
> > > This is a Linux-specific virtual PMD driver backed by an AF_PACKET
> > > socket. The current implementation uses mmap'ed ring buffers to
> > > limit copying and user/kernel transitions. The intent is also to take
> > > advantage of fanout and any future AF_PACKET optimizations as well.
> > >
> > > This is intended to provide a means for using DPDK on a broad range
> > > of hardware without hardware-specifi PMDs and hopefully with better
> > > performance than what PCAP offers in Linux. This might be useful
> > > as a development platform for DPDK applications when DPDK-supported
> > > hardware is expensive or unavailable.
> >
> > Nice, have you compared yet w/ PCAP numbers?
Agreed. Nice to have generic PMD options for those NICs that don't have specially optimized PMDs.
>
> No, sorry -- definitely needs more testing, including performance numbers...
>
Looking forward to seeing those when you have them. :-)
next prev parent reply other threads:[~2014-06-06 20:10 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-06 19:25 John W. Linville
2014-06-06 19:47 ` Chris Wright
2014-06-06 19:57 ` John W. Linville
2014-06-06 20:04 ` Richardson, Bruce [this message]
2014-06-06 20:06 ` Chris Wright
2014-06-06 20:30 ` Neil Horman
2014-06-06 20:36 ` John W. Linville
2014-06-06 20:51 ` Neil Horman
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