From: Jamal Hadi Salim <jhs@mojatatu•com>
To: Thomas Graf <tgraf@suug•ch>
Cc: Jiri Pirko <jiri@resnulli•us>,
John Fastabend <john.r.fastabend@intel•com>,
netdev@vger•kernel.org, davem@davemloft•net,
nhorman@tuxdriver•com, andy@greyhouse•net, dborkman@redhat•com,
ogerlitz@mellanox•com, jesse@nicira•com, pshelar@nicira•com,
azhou@nicira•com, ben@decadent•org.uk,
stephen@networkplumber•org, jeffrey.t.kirsher@intel•com,
vyasevic@redhat•com, xiyou.wangcong@gmail•com,
edumazet@google•com, sfeldma@cumulusnetworks•com,
f.fainelli@gmail•com, roopa@cumulusnetworks•com,
linville@tuxdriver•com, dev@openvswitch•org, jasowang@redhat•com,
ebiederm@xmission•com, nicolas.dichtel@6wind•com,
ryazanov.s.a@gmail•com, buytenh@wantstofly•org,
aviadr@mellanox•com, nbd@openwrt•org,
alexei.starovoitov@gmail•com, Neil.Jerram@metaswitch•com,
ronye@mellanox•com, simon.horman@netronome•com,
alexander.h.duyck@intel•com
Subject: Re: [patch net-next v2 8/9] switchdev: introduce Netlink API
Date: Sat, 20 Sep 2014 07:32:30 -0400 [thread overview]
Message-ID: <541D65CE.7080108@mojatatu.com> (raw)
In-Reply-To: <20140920110121.GB29419@casper.infradead.org>
On 09/20/14 07:01, Thomas Graf wrote:
> Nothing speaks against having such a tc classifier. In fact, having
> the interface consist of only an embedded Netlink attribute structure
> would allow for such a classifier in a very straight forward way.
>
> That doesn't mean everybody should be forced to use the stateful
> tc interface.
>
Agreed. The response was to Jiri's strange statement that now that
he cant use OVS, there is no such api. I point to tc as very capable of
such usage.
> No need for false accusations here. Nobody ever mentioned vendor SDKs.
>
I am sorry to have tied the two together. Maybe not OVS but the approach
described is heaven for vendor SDKs.
> The statement was that the requirement of deriving hardware flows from
> software flows *in the kernel* is not flexible enough for the future
> for reasons such as:
>
> 1) The OVS software data path might be based on eBPF in the future and
> it is unclear how we could derive hardware flows from that
> transparently.
>
Who says you cant put BPF in hardware?
And why is OVS defining how BPF should evolve or how it should be used?
> 2) Depending on hardware capabilities. Hardware flows might need to be
> assisted by software flow counterparts and it is believed that it
> is the wrong approach to push all the necessary context for the
> decision down into the kernel. This can be argued about and I don't
> feel strongly either way.
>
Pointing to the current FDB offload: You can select to bypass
and not use s/ware.
cheers,
jamal
next prev parent reply other threads:[~2014-09-20 11:32 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-19 13:49 [patch net-next v2 0/9] introduce rocker switch driver with hardware accelerated datapath api Jiri Pirko
2014-09-19 13:49 ` [patch net-next v2 1/9] net: rename netdev_phys_port_id to more generic name Jiri Pirko
[not found] ` <1411134590-4586-2-git-send-email-jiri-rHqAuBHg3fBzbRFIqnYvSA@public.gmane.org>
2014-09-19 13:54 ` Jeff Kirsher
[not found] ` <1411134590-4586-1-git-send-email-jiri-rHqAuBHg3fBzbRFIqnYvSA@public.gmane.org>
2014-09-19 13:49 ` [patch net-next v2 2/9] net: introduce generic switch devices support Jiri Pirko
2014-09-19 14:15 ` [patch net-next v2 0/9] introduce rocker switch driver with hardware accelerated datapath api David Laight
[not found] ` <063D6719AE5E284EB5DD2968C1650D6D17495CC6-VkEWCZq2GCInGFn1LkZF6NBPR1lH4CV8@public.gmane.org>
2014-09-19 14:20 ` Jiri Pirko
2014-09-20 5:37 ` Florian Fainelli
2014-09-19 13:49 ` [patch net-next v2 3/9] rtnl: expose physical switch id for particular device Jiri Pirko
2014-09-19 13:49 ` [patch net-next v2 4/9] net-sysfs: " Jiri Pirko
2014-09-19 13:49 ` [patch net-next v2 5/9] net: introduce dummy switch Jiri Pirko
[not found] ` <1411134590-4586-6-git-send-email-jiri-rHqAuBHg3fBzbRFIqnYvSA@public.gmane.org>
2014-09-20 5:21 ` Florian Fainelli
2014-09-20 7:37 ` Jiri Pirko
2014-09-19 13:49 ` [patch net-next v2 6/9] switchdev: add basic support for flow matching and actions Jiri Pirko
2014-09-20 5:32 ` Florian Fainelli
2014-09-20 7:28 ` Jiri Pirko
2014-09-19 13:49 ` [patch net-next v2 7/9] switchdev: add swdev features Jiri Pirko
2014-09-19 13:49 ` [patch net-next v2 8/9] switchdev: introduce Netlink API Jiri Pirko
2014-09-19 15:25 ` Jamal Hadi Salim
2014-09-19 15:49 ` Jiri Pirko
2014-09-19 17:57 ` Jamal Hadi Salim
2014-09-19 22:12 ` John Fastabend
2014-09-19 22:18 ` Jamal Hadi Salim
2014-09-20 5:39 ` Florian Fainelli
2014-09-20 8:25 ` Jiri Pirko
2014-09-20 8:17 ` Jiri Pirko
2014-09-20 10:19 ` Jamal Hadi Salim
2014-09-20 11:01 ` Thomas Graf
2014-09-20 11:32 ` Jamal Hadi Salim [this message]
2014-09-20 11:51 ` Thomas Graf
[not found] ` <20140920115140.GA3777-FZi0V3Vbi30CUdFEqe4BF2D2FQJk+8+b@public.gmane.org>
2014-09-20 12:35 ` Jamal Hadi Salim
2014-09-22 7:53 ` Jiri Pirko
[not found] ` <20140922075337.GA1828-6KJVSR23iU488b5SBfVpbw@public.gmane.org>
2014-09-22 11:48 ` Jamal Hadi Salim
2014-09-20 5:36 ` Florian Fainelli
2014-09-20 8:14 ` Jiri Pirko
2014-09-20 10:53 ` Thomas Graf
2014-09-20 22:50 ` Alexei Starovoitov
2014-09-22 8:13 ` Thomas Graf
2014-09-22 15:10 ` Tom Herbert
2014-09-22 22:17 ` Thomas Graf
[not found] ` <20140922221727.GA4708-FZi0V3Vbi30CUdFEqe4BF2D2FQJk+8+b@public.gmane.org>
2014-09-22 22:40 ` Tom Herbert
2014-09-22 22:53 ` Thomas Graf
2014-09-22 23:07 ` Tom Herbert
2014-09-23 1:36 ` John Fastabend
2014-09-23 7:19 ` Thomas Graf
2014-09-23 11:09 ` Jamal Hadi Salim
[not found] ` <CA+mtBx9ZVQ5r5Hzy9-uEnk+iu+HKkOP4+VANC06Xf8VvTxktwQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-09-23 9:18 ` Thomas Graf
2014-09-23 1:54 ` Alexei Starovoitov
2014-09-23 2:16 ` Tom Herbert
2014-09-23 4:11 ` Andy Gospodarek
2014-09-23 10:11 ` Thomas Graf
2014-09-23 15:32 ` Or Gerlitz
2014-09-24 13:32 ` Thomas Graf
2014-09-26 20:03 ` Or Gerlitz
2014-09-26 21:02 ` Thomas Graf
2014-09-23 9:52 ` Thomas Graf
2014-09-20 3:41 ` Roopa Prabhu
2014-09-20 8:09 ` Jiri Pirko
2014-09-20 12:39 ` Roopa Prabhu
2014-09-20 8:10 ` Scott Feldman
2014-09-20 10:31 ` Jamal Hadi Salim
[not found] ` <DDC24110-C3F5-470F-B9BE-1D1792415D1E-qUQiAmfTcIp+XZJcv9eMoEEOCMrvLtNR@public.gmane.org>
2014-09-20 12:51 ` Roopa Prabhu
2014-09-20 17:21 ` Scott Feldman
2014-09-20 17:38 ` Jiri Pirko
2014-09-21 1:30 ` Roopa Prabhu
2014-09-19 13:49 ` [patch net-next v2 9/9] rocker: introduce rocker switch driver Jiri Pirko
-- strict thread matches above, loose matches on Subject: below --
2014-09-23 3:43 [patch net-next v2 8/9] switchdev: introduce Netlink API Alexei Starovoitov
2014-09-23 20:57 ` Tom Herbert
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=541D65CE.7080108@mojatatu.com \
--to=jhs@mojatatu$(echo .)com \
--cc=Neil.Jerram@metaswitch$(echo .)com \
--cc=alexander.h.duyck@intel$(echo .)com \
--cc=alexei.starovoitov@gmail$(echo .)com \
--cc=andy@greyhouse$(echo .)net \
--cc=aviadr@mellanox$(echo .)com \
--cc=azhou@nicira$(echo .)com \
--cc=ben@decadent$(echo .)org.uk \
--cc=buytenh@wantstofly$(echo .)org \
--cc=davem@davemloft$(echo .)net \
--cc=dborkman@redhat$(echo .)com \
--cc=dev@openvswitch$(echo .)org \
--cc=ebiederm@xmission$(echo .)com \
--cc=edumazet@google$(echo .)com \
--cc=f.fainelli@gmail$(echo .)com \
--cc=jasowang@redhat$(echo .)com \
--cc=jeffrey.t.kirsher@intel$(echo .)com \
--cc=jesse@nicira$(echo .)com \
--cc=jiri@resnulli$(echo .)us \
--cc=john.r.fastabend@intel$(echo .)com \
--cc=linville@tuxdriver$(echo .)com \
--cc=nbd@openwrt$(echo .)org \
--cc=netdev@vger$(echo .)kernel.org \
--cc=nhorman@tuxdriver$(echo .)com \
--cc=nicolas.dichtel@6wind$(echo .)com \
--cc=ogerlitz@mellanox$(echo .)com \
--cc=pshelar@nicira$(echo .)com \
--cc=ronye@mellanox$(echo .)com \
--cc=roopa@cumulusnetworks$(echo .)com \
--cc=ryazanov.s.a@gmail$(echo .)com \
--cc=sfeldma@cumulusnetworks$(echo .)com \
--cc=simon.horman@netronome$(echo .)com \
--cc=stephen@networkplumber$(echo .)org \
--cc=tgraf@suug$(echo .)ch \
--cc=vyasevic@redhat$(echo .)com \
--cc=xiyou.wangcong@gmail$(echo .)com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
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