From: "John W. Linville" <linville@tuxdriver.com>
To: Scott Feldman <sfeldma@cumulusnetworks.com>
Cc: Andy Gospodarek <andy@greyhouse.net>,
Jiri Pirko <jiri@resnulli.us>,
Roopa Prabhu <roopa@cumulusnetworks.com>,
Jamal Hadi Salim <jhs@mojatatu.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Neil Horman <nhorman@tuxdriver.com>, Thomas Graf <tgraf@suug.ch>,
netdev <netdev@vger.kernel.org>,
David Miller <davem@davemloft.net>,
dborkman <dborkman@redhat.com>, ogerlitz <ogerlitz@mellanox.com>,
jesse <jesse@nicira.com>, pshelar <pshelar@nicira.com>,
azhou <azhou@nicira.com>, Ben Hutchings <ben@decadent.org.uk>,
Stephen Hemminger <stephen@networkplumber.org>,
jeffrey.t.kirsher@intel.com, vyasevic <vyasevic@redhat.com>,
Cong Wang <xiyou.wangcong@gmail.com>,
John Fastabend <john.r.fastabend@intel.com>,
Eric Dumazet <edumazet@google.com>,
Lennert Buytenhek <buytenh@wantstofly.org>,
Shrijeet Mukherjee <shm@cumulusnetworks.com>
Subject: Re: [patch net-next RFC 0/4] introduce infrastructure for support of switch chip datapath
Date: Wed, 2 Apr 2014 16:06:39 -0400 [thread overview]
Message-ID: <20140402200639.GD3301@tuxdriver.com> (raw)
In-Reply-To: <3C265410-A9DF-489F-BC55-05B231564D12@cumulusnetworks.com>
On Wed, Apr 02, 2014 at 12:54:50PM -0700, Scott Feldman wrote:
>
> On Apr 2, 2014, at 12:29 PM, John W. Linville <linville@tuxdriver.com> wrote:
>
> > Cool! I'm glad we agree. Now we just need some switch hardware
> > drivers that fit the general model outlined above...
>
> Why wait? Let’s create a switch device in qemu and then write the
> model/sample driver to that. Put a PCI front end on the qemu device
> which is mapped to kernel, and define a register set to represent all
> the switch-like ops we want to offload, in a generic way. Throw in
> some DMA for CPU-bound I/O (ctrl traffic). On the qemu device back
> end, expose the ports as taps or whatever so we can wire to real-world
> link partners on the host side.
Not a bad idea at all. This probably needs further discussion and/or
a spec...and a QEMU hacker. Where is my friend PJ when I need him? ;-)
> > I would be happy to maintain a kernel.org git tree as a nursery for
> > such drivers as they develop and mature, and I'm sure my daytime
> > employer would be happy to support me on that. I wonder if we can
> > get any switch people from Intel, Mellanox, Broadcom, or elsewhere
> > to play along?
>
> My gut tells me this is a build-it-and-they-will-come situation.
No doubt -- in the meantime, feel free to Cc me on some patches!
John
--
John W. Linville Someday the world will need a hero, and you
linville@tuxdriver.com might be all we have. Be ready.
next prev parent reply other threads:[~2014-04-02 20:31 UTC|newest]
Thread overview: 125+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-19 15:33 [patch net-next RFC 0/4] introduce infrastructure for support of switch chip datapath Jiri Pirko
2014-03-19 15:33 ` [patch net-next RFC 1/4] openvswitch: split flow structures into ovs specific and generic ones Jiri Pirko
2014-03-20 13:04 ` Thomas Graf
2014-03-19 15:33 ` [patch net-next RFC 2/4] net: introduce switchdev API Jiri Pirko
2014-03-20 13:59 ` Thomas Graf
2014-03-20 14:18 ` Jiri Pirko
2014-03-20 14:43 ` Nikolay Aleksandrov
2014-03-20 15:42 ` Jiri Pirko
2014-03-19 15:33 ` [patch net-next RFC 3/4] openvswitch: Introduce support for switchdev based datapath Jiri Pirko
2014-03-19 15:33 ` [patch net-next RFC 4/4] net: introduce dummy switch Jiri Pirko
2014-03-20 11:49 ` [patch net-next RFC 0/4] introduce infrastructure for support of switch chip datapath Jamal Hadi Salim
2014-03-20 12:40 ` Jiri Pirko
2014-03-20 17:21 ` Florian Fainelli
2014-03-21 12:04 ` Jamal Hadi Salim
2014-03-22 9:48 ` Jiri Pirko
2014-03-24 23:07 ` Jamal Hadi Salim
2014-03-25 17:39 ` Neil Horman
2014-03-25 18:00 ` Thomas Graf
2014-03-25 19:35 ` Neil Horman
2014-03-25 20:11 ` Florian Fainelli
2014-03-25 20:31 ` Neil Horman
2014-03-25 21:22 ` Jamal Hadi Salim
2014-03-25 21:26 ` Thomas Graf
2014-03-25 21:42 ` Florian Fainelli
2014-03-25 21:54 ` Thomas Graf
2014-03-26 10:55 ` Neil Horman
2014-03-26 5:37 ` Roopa Prabhu
2014-03-26 10:54 ` Jamal Hadi Salim
2014-03-26 15:31 ` John W. Linville
2014-03-26 16:54 ` Roopa Prabhu
2014-03-26 16:59 ` Jiri Pirko
2014-03-26 17:29 ` Florian Fainelli
2014-03-26 17:35 ` Jiri Pirko
2014-03-26 17:58 ` Florian Fainelli
2014-03-26 18:14 ` Jiri Pirko
2014-03-26 18:29 ` Hannes Frederic Sowa
2014-03-26 18:30 ` Florian Fainelli
2014-03-26 21:51 ` Jamal Hadi Salim
2014-03-26 22:22 ` Florian Fainelli
2014-03-26 22:53 ` Jamal Hadi Salim
2014-03-26 23:16 ` Florian Fainelli
2014-03-27 6:56 ` Jiri Pirko
2014-03-27 10:39 ` Jamal Hadi Salim
2014-03-27 10:50 ` Jiri Pirko
2014-03-27 11:12 ` Jamal Hadi Salim
2014-03-27 11:16 ` Jiri Pirko
2014-03-27 14:10 ` Sergey Ryazanov
2014-03-27 16:41 ` Florian Fainelli
2014-03-27 16:57 ` Jiri Pirko
2014-03-27 16:59 ` Thomas Graf
2014-03-27 20:32 ` Sergey Ryazanov
2014-03-27 21:20 ` Florian Fainelli
2014-03-27 21:55 ` Jamal Hadi Salim
2014-03-28 6:28 ` Jiri Pirko
2014-03-30 12:08 ` Alon Harel
2014-03-27 21:41 ` Jamal Hadi Salim
2014-03-27 16:55 ` Jiri Pirko
2014-03-27 19:58 ` Sergey Ryazanov
2014-03-27 20:01 ` Florian Fainelli
2014-03-27 20:04 ` Sergey Ryazanov
2014-03-27 21:47 ` Jamal Hadi Salim
2014-03-27 21:54 ` Florian Fainelli
2014-03-27 21:59 ` Jamal Hadi Salim
2014-03-27 22:19 ` Florian Fainelli
2014-03-27 23:42 ` Thomas Graf
2014-03-27 23:46 ` Florian Fainelli
2014-03-26 17:57 ` Roopa Prabhu
2014-03-26 18:09 ` Florian Fainelli
2014-03-27 13:46 ` John W. Linville
2014-03-26 17:47 ` Roopa Prabhu
2014-03-26 18:03 ` Jiri Pirko
2014-03-26 21:27 ` Roopa Prabhu
2014-03-26 21:31 ` Jiri Pirko
2014-03-27 15:35 ` Roopa Prabhu
2014-03-27 16:10 ` Jiri Pirko
2014-04-01 19:13 ` Scott Feldman
2014-04-02 6:41 ` Jiri Pirko
2014-04-02 15:37 ` Scott Feldman
2014-04-02 14:32 ` Andy Gospodarek
2014-04-02 15:25 ` John W. Linville
2014-04-02 16:15 ` Scott Feldman
2014-04-02 16:47 ` Florian Fainelli
2014-04-02 21:52 ` Thomas Graf
2014-04-02 19:29 ` John W. Linville
2014-04-02 19:54 ` Scott Feldman
2014-04-02 20:06 ` John W. Linville [this message]
2014-04-02 20:04 ` Stephen Hemminger
2014-04-02 20:23 ` Jiri Pirko
2014-04-02 20:38 ` John W. Linville
2014-04-02 21:36 ` Thomas Graf
2014-03-25 20:56 ` Jamal Hadi Salim
2014-03-25 21:19 ` Thomas Graf
2014-03-25 21:24 ` Jamal Hadi Salim
2014-03-26 7:21 ` Jiri Pirko
2014-03-26 11:00 ` Jamal Hadi Salim
2014-03-26 11:06 ` Jamal Hadi Salim
2014-03-26 11:31 ` Jamal Hadi Salim
2014-03-26 13:20 ` Jiri Pirko
2014-03-26 13:23 ` Jamal Hadi Salim
2014-03-26 13:17 ` Jiri Pirko
2014-03-26 11:10 ` Neil Horman
2014-03-26 11:29 ` Thomas Graf
2014-03-26 12:58 ` Jamal Hadi Salim
2014-03-26 15:22 ` John W. Linville
2014-03-26 21:36 ` Jamal Hadi Salim
2014-03-26 18:21 ` Neil Horman
2014-03-26 19:11 ` Florian Fainelli
2014-03-26 22:44 ` Jamal Hadi Salim
2014-03-26 23:15 ` Thomas Graf
2014-03-26 23:21 ` Florian Fainelli
2014-03-27 15:26 ` Neil Horman
2014-03-27 21:33 ` Jamal Hadi Salim
2014-03-26 19:24 ` Hannes Frederic Sowa
2014-03-27 13:43 ` John W. Linville
2014-03-26 12:19 ` Jamal Hadi Salim
2014-03-26 15:27 ` John W. Linville
2014-03-25 18:33 ` Florian Fainelli
2014-03-25 19:40 ` Neil Horman
2014-03-25 20:00 ` Florian Fainelli
2014-03-25 21:39 ` tgraf
2014-03-25 22:08 ` Jamal Hadi Salim
2014-03-26 5:48 ` Roopa Prabhu
2014-03-25 20:46 ` Jamal Hadi Salim
2014-03-26 7:24 ` Jiri Pirko
2014-03-22 9:40 ` Jiri Pirko
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20140402200639.GD3301@tuxdriver.com \
--to=linville@tuxdriver.com \
--cc=andy@greyhouse.net \
--cc=azhou@nicira.com \
--cc=ben@decadent.org.uk \
--cc=buytenh@wantstofly.org \
--cc=davem@davemloft.net \
--cc=dborkman@redhat.com \
--cc=edumazet@google.com \
--cc=f.fainelli@gmail.com \
--cc=jeffrey.t.kirsher@intel.com \
--cc=jesse@nicira.com \
--cc=jhs@mojatatu.com \
--cc=jiri@resnulli.us \
--cc=john.r.fastabend@intel.com \
--cc=netdev@vger.kernel.org \
--cc=nhorman@tuxdriver.com \
--cc=ogerlitz@mellanox.com \
--cc=pshelar@nicira.com \
--cc=roopa@cumulusnetworks.com \
--cc=sfeldma@cumulusnetworks.com \
--cc=shm@cumulusnetworks.com \
--cc=stephen@networkplumber.org \
--cc=tgraf@suug.ch \
--cc=vyasevic@redhat.com \
--cc=xiyou.wangcong@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).