From: "John W. Linville" <linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
To: Thomas Monjalon
<thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
Cc: dev-VfR2kkLFssw@public.gmane.org
Subject: Re: [PATCH] librte_pmd_packet: add PMD for AF_PACKET-based virtual devices
Date: Fri, 11 Jul 2014 10:51:52 -0400 [thread overview]
Message-ID: <20140711145152.GB25478@tuxdriver.com> (raw)
In-Reply-To: <140509179.juH2PgJsn9@xps13>
On Fri, Jul 11, 2014 at 03:26:39PM +0200, Thomas Monjalon wrote:
> 2014-07-10 16:32, John W. Linville:
> > This is a Linux-specific virtual PMD driver backed by an AF_PACKET
> > socket. This implementation uses mmap'ed ring buffers to limit copying
> > and user/kernel transitions. The PACKET_FANOUT_HASH behavior of
> > AF_PACKET is used for frame reception. In the current implementation,
> > Tx and Rx queues are always paired, and therefore are always equal
> > in number -- changing this would be a Simple Matter Of Programming.
> >
> > Interfaces of this type are created with a command line option like
> > "--vdev=eth_packet0,iface=...". There are a number of options availabe
> > as arguments:
> >
> > - Interface is chosen by "iface" (required)
> > - Number of queue pairs set by "qpairs" (optional, default: 16)
> > - AF_PACKET MMAP block size set by "blocksz" (optional, default: 4096)
> > - AF_PACKET MMAP frame size set by "framesz" (optional, default: 2048)
> > - AF_PACKET MMAP frame count set by "framecnt" (optional, default: 512)
> >
> > Signed-off-by: John W. Linville <linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
> > ---
> > This PMD is intended to provide a means for using DPDK on a broad
> > range of hardware without hardware-specific 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.
>
> Thank you for this nice work.
>
> I think it would be well suited to host this PMD as an external one in order
> to make it work also with DPDK 1.7.0.
I'm not sure I understand the suggestion -- you don't want to merge
the driver for 1.8? Or you just want to host this patch somewhere,
so people can still use it w/ 1.7?
John
--
John W. Linville Someday the world will need a hero, and you
linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org might be all we have. Be ready.
next prev parent reply other threads:[~2014-07-11 14:51 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-10 20:32 [PATCH] librte_pmd_packet: add PMD for AF_PACKET-based virtual devices John W. Linville
[not found] ` <D0158A423229094DA7ABF71CF2FA0DA3117D3A23@shsmsx102.ccr.corp.intel.com>
[not found] ` <D0158A423229094DA7ABF71CF2FA0DA3117D3A23-E2R4CRU6q/6iAffOGbnezLfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-07-11 17:20 ` Zhou, Danny
[not found] ` <DFDF335405C17848924A094BC35766CF0A8A13E6-0J0gbvR4kTg/UvCtAeCM4rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-07-11 17:40 ` John W. Linville
2014-07-11 19:04 ` Zhou, Danny
[not found] ` <DFDF335405C17848924A094BC35766CF0A8A150F-0J0gbvR4kTg/UvCtAeCM4rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-07-11 19:31 ` John W. Linville
[not found] ` <20140711193139.GJ25478-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-07-11 20:27 ` Zhou, Danny
[not found] ` <DFDF335405C17848924A094BC35766CF0A8A154C-0J0gbvR4kTg/UvCtAeCM4rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-07-11 20:31 ` Shaw, Jeffrey B
[not found] ` <4032A54B6BB5F04B8C08B6CFF08C59285544ECD5-AtyAts71sc9Qxe9IK+vIArfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-07-11 20:35 ` Zhou, Danny
[not found] ` <DFDF335405C17848924A094BC35766CF0A8A16E3-0J0gbvR4kTg/UvCtAeCM4rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-07-11 20:40 ` John W. Linville
[not found] ` <20140711174042.GE25478-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-07-11 18:01 ` Zhou, Danny
[not found] ` <DFDF335405C17848924A094BC35766CF0A8A14B1-0J0gbvR4kTg/UvCtAeCM4rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-07-11 18:46 ` John W. Linville
[not found] ` <20140711184648.GH25478-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-07-12 0:42 ` Zhou, Danny
[not found] ` <DFDF335405C17848924A094BC35766CF0A8A186D-0J0gbvR4kTg/UvCtAeCM4rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-07-14 13:45 ` John W. Linville
2014-07-11 22:34 ` Thomas Monjalon
2014-07-14 13:46 ` John W. Linville
[not found] ` <20140714134616.GC27848-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-07-15 21:27 ` Thomas Monjalon
2014-07-16 12:35 ` Neil Horman
[not found] ` <20140716123530.GA22437-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2014-07-16 13:37 ` Thomas Monjalon
2014-07-16 14:07 ` John W. Linville
[not found] ` <20140716140744.GD13555-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-07-16 14:26 ` Thomas Monjalon
2014-07-16 15:59 ` Shaw, Jeffrey B
[not found] ` <1405024369-30058-1-git-send-email-linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-07-11 13:11 ` Stephen Hemminger
2014-07-11 14:49 ` John W. Linville
[not found] ` <20140711144912.GA25478-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-07-11 15:06 ` Richardson, Bruce
[not found] ` <59AF69C657FD0841A61C55336867B5B0343ACD8B-kPTMFJFq+rELt2AQoY/u9bfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-07-11 15:16 ` Stephen Hemminger
2014-07-11 16:07 ` Richardson, Bruce
2014-07-11 15:29 ` Venkatesan, Venky
[not found] ` <1FD9B82B8BF2CF418D9A1000154491D974124465-P5GAC/sN6hlcIJlls4ac1rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-07-11 15:33 ` John W. Linville
[not found] ` <20140711153309.GD25478-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-07-11 16:29 ` Venkatesan, Venky
2014-07-11 13:26 ` Thomas Monjalon
2014-07-11 14:51 ` John W. Linville [this message]
[not found] ` <20140711145152.GB25478-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-07-11 15:04 ` Thomas Monjalon
2014-07-11 15:30 ` John W. Linville
[not found] ` <20140711153006.GC25478-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-07-11 16:47 ` Thomas Monjalon
2014-07-11 17:38 ` Richardson, Bruce
[not found] ` <59AF69C657FD0841A61C55336867B5B0343ACEB1-kPTMFJFq+rELt2AQoY/u9bfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-07-11 17:41 ` John W. Linville
2014-07-12 11:48 ` Neil Horman
2014-07-11 22:30 ` Thomas Monjalon
2014-07-14 17:53 ` John W. Linville
2014-07-11 22:51 ` Bruce Richardson
[not found] ` <20140711225108.GA9381-IWE99D/oH1/+pXziaqXtF9h3ngVCH38I@public.gmane.org>
2014-07-14 13:48 ` John W. Linville
[not found] ` <20140714134832.GD27848-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-07-14 17:35 ` John W. Linville
2014-07-14 18:24 ` [PATCH v2] " John W. Linville
[not found] ` <1405362290-6753-1-git-send-email-linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-07-15 0:15 ` Zhou, Danny
[not found] ` <DFDF335405C17848924A094BC35766CF0A8A4F83-0J0gbvR4kTg/UvCtAeCM4rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-07-15 12:17 ` Neil Horman
[not found] ` <20140715121743.GA14273-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2014-07-15 14:01 ` John W. Linville
[not found] ` <20140715140111.GA26012-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-07-15 15:40 ` Zhou, Danny
[not found] ` <DFDF335405C17848924A094BC35766CF0A8AF52C-0J0gbvR4kTggGBtAFL8yw7fspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-07-15 19:08 ` John W. Linville
2014-07-15 20:31 ` Neil Horman
[not found] ` <20140715203108.GA20273-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2014-07-15 20:41 ` Zhou, Danny
2014-07-15 15:34 ` Zhou, Danny
2014-09-12 18:05 ` John W. Linville
[not found] ` <20140912180523.GB7145-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-09-12 18:31 ` Zhou, Danny
[not found] ` <DFDF335405C17848924A094BC35766CF0A935AEE-0J0gbvR4kTg/UvCtAeCM4rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-09-12 18:54 ` John W. Linville
[not found] ` <20140912185423.GD7145-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-09-12 20:35 ` Zhou, Danny
[not found] ` <DFDF335405C17848924A094BC35766CF0A935E75-0J0gbvR4kTg/UvCtAeCM4rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-09-15 15:09 ` Neil Horman
[not found] ` <20140915150946.GA11690-B26myB8xz7F8NnZeBjwnZQMhkBWG/bsMQH7oEaQurus@public.gmane.org>
2014-09-15 15:15 ` John W. Linville
2014-09-15 15:43 ` Zhou, Danny
[not found] ` <DFDF335405C17848924A094BC35766CF0A93A24C-0J0gbvR4kTg/UvCtAeCM4rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-09-15 16:22 ` Neil Horman
[not found] ` <20140915162244.GB11690-B26myB8xz7F8NnZeBjwnZQMhkBWG/bsMQH7oEaQurus@public.gmane.org>
2014-09-15 17:48 ` John W. Linville
[not found] ` <20140915174822.GG28459-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-09-15 19:11 ` Zhou, Danny
2014-09-16 20:16 ` Neil Horman
[not found] ` <20140916201601.GF3792-B26myB8xz7F8NnZeBjwnZQMhkBWG/bsMQH7oEaQurus@public.gmane.org>
2014-09-26 9:28 ` Thomas Monjalon
2014-09-26 14:08 ` Neil Horman
[not found] ` <20140926140855.GD3930-B26myB8xz7F8NnZeBjwnZQMhkBWG/bsMQH7oEaQurus@public.gmane.org>
2014-09-29 10:05 ` Bruce Richardson
2014-10-08 15:57 ` Thomas Monjalon
2014-10-08 19:14 ` Neil Horman
[not found] ` <20141008191403.GB13306-B26myB8xz7F8NnZeBjwnZQMhkBWG/bsMQH7oEaQurus@public.gmane.org>
2014-11-13 10:03 ` Thomas Monjalon
2014-11-13 11:14 ` Neil Horman
[not found] ` <20141113111428.GA13253-B26myB8xz7F8NnZeBjwnZQMhkBWG/bsMQH7oEaQurus@public.gmane.org>
2014-11-13 11:57 ` Thomas Monjalon
2014-11-14 0:42 ` Neil Horman
[not found] ` <20141114004208.GA14230-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2014-11-14 14:45 ` John W. Linville
[not found] ` <20141114144536.GC1893-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-11-17 15:57 ` [PATCH v3] librte_pmd_af_packet: " John W. Linville
[not found] ` <1416239878-3556-1-git-send-email-linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2014-11-24 16:16 ` Thomas Monjalon
2014-11-17 11:19 ` [PATCH v2] librte_pmd_packet: " Neil Horman
[not found] ` <20141117111919.GA17886-B26myB8xz7F8NnZeBjwnZQMhkBWG/bsMQH7oEaQurus@public.gmane.org>
2014-11-17 11:22 ` Thomas Monjalon
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