From: Jamal Hadi Salim <jhs@mojatatu.com>
To: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: Tom Herbert <tom@herbertland.com>,
Jesper Dangaard Brouer <brouer@redhat.com>,
Brenden Blanco <bblanco@plumgrid.com>,
"David S. Miller" <davem@davemloft.net>,
Linux Kernel Network Developers <netdev@vger.kernel.org>,
Or Gerlitz <ogerlitz@mellanox.com>,
Daniel Borkmann <daniel@iogearbox.net>,
Eric Dumazet <eric.dumazet@gmail.com>,
Edward Cree <ecree@solarflare.com>,
john fastabend <john.fastabend@gmail.com>,
Thomas Graf <tgraf@suug.ch>,
Johannes Berg <johannes@sipsolutions.net>,
eranlinuxmellanox@gmail.com, Lorenzo Colitti <lorenzo@google.com>,
linux-mm <linux-mm@kvack.org>, Robert Olsson <robert@herjulf.net>,
kuznet@ms2.inr.ac.ru
Subject: Re: [RFC PATCH v2 1/5] bpf: add PHYS_DEV prog type for early driver filter
Date: Sun, 10 Apr 2016 09:07:54 -0400 [thread overview]
Message-ID: <570A502A.3050006@mojatatu.com> (raw)
In-Reply-To: <20160409172634.GA55330@ast-mbp.thefacebook.com>
On 16-04-09 01:26 PM, Alexei Starovoitov wrote:
>
> yeah, no stack, no queues in bpf.
Thanks.
>
>> If this is _forwarding only_ it maybe useful to look at
>> Alexey's old code in particular the DMA bits;
>> he built his own lookup algorithm but sounds like bpf is
>> a much better fit today.
>
> a link to these old bits?
>
Dang. Trying to remember exact name (I think it has been gone for at
least 10 years now). I know it is not CONFIG_NET_FASTROUTE although
it could have been that depending on the driver (tulip had some
nice DMA properties - which by todays standards would be considered
primitive ;->).
+Cc Robert and Alexey (Trying to figure out name of driver based
routing code that DMAed from ingress to egress port)
> Just to be clear: this rfc is not the only thing we're considering.
> In particular huawei guys did a monster effort to improve performance
> in this area as well. We'll try to blend all the code together and
> pick what's the best.
>
Sounds very interesting.
cheers,
jamal
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2016-04-10 13:07 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-08 4:48 [RFC PATCH v2 1/5] bpf: add PHYS_DEV prog type for early driver filter Brenden Blanco
2016-04-08 4:48 ` [RFC PATCH v2 2/5] net: add ndo to set bpf prog in adapter rx Brenden Blanco
2016-04-08 9:38 ` Jesper Dangaard Brouer
2016-04-08 16:39 ` Brenden Blanco
2016-04-08 4:48 ` [RFC PATCH v2 3/5] rtnl: add option for setting link bpf prog Brenden Blanco
2016-04-08 4:48 ` [RFC PATCH v2 4/5] mlx4: add support for fast rx drop bpf program Brenden Blanco
2016-04-08 11:41 ` Jesper Dangaard Brouer
2016-04-08 17:04 ` Brenden Blanco
2016-04-08 4:48 ` [RFC PATCH v2 5/5] Add sample for adding simple drop program to link Brenden Blanco
2016-04-09 14:48 ` Jamal Hadi Salim
2016-04-09 16:43 ` Brenden Blanco
2016-04-09 17:27 ` Jamal Hadi Salim
2016-04-10 18:38 ` Brenden Blanco
2016-04-13 10:40 ` Jamal Hadi Salim
2016-04-08 10:36 ` [RFC PATCH v2 1/5] bpf: add PHYS_DEV prog type for early driver filter Jesper Dangaard Brouer
2016-04-08 11:09 ` Daniel Borkmann
2016-04-08 16:48 ` Brenden Blanco
2016-04-08 12:33 ` Jesper Dangaard Brouer
2016-04-08 17:02 ` Brenden Blanco
2016-04-08 19:05 ` Jesper Dangaard Brouer
2016-04-08 17:26 ` Alexei Starovoitov
2016-04-08 20:08 ` Jesper Dangaard Brouer
2016-04-08 21:34 ` Alexei Starovoitov
2016-04-09 11:29 ` Tom Herbert
2016-04-09 15:29 ` Jamal Hadi Salim
2016-04-09 17:26 ` Alexei Starovoitov
2016-04-10 7:55 ` Thomas Graf
2016-04-10 16:53 ` Tom Herbert
2016-04-10 18:09 ` Jamal Hadi Salim
2016-04-10 13:07 ` Jamal Hadi Salim [this message]
2016-04-09 11:17 ` Tom Herbert
2016-04-09 12:27 ` Jesper Dangaard Brouer
2016-04-09 13:17 ` Tom Herbert
2016-04-09 17:00 ` Alexei Starovoitov
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=570A502A.3050006@mojatatu.com \
--to=jhs@mojatatu.com \
--cc=alexei.starovoitov@gmail.com \
--cc=bblanco@plumgrid.com \
--cc=brouer@redhat.com \
--cc=daniel@iogearbox.net \
--cc=davem@davemloft.net \
--cc=ecree@solarflare.com \
--cc=eranlinuxmellanox@gmail.com \
--cc=eric.dumazet@gmail.com \
--cc=johannes@sipsolutions.net \
--cc=john.fastabend@gmail.com \
--cc=kuznet@ms2.inr.ac.ru \
--cc=linux-mm@kvack.org \
--cc=lorenzo@google.com \
--cc=netdev@vger.kernel.org \
--cc=ogerlitz@mellanox.com \
--cc=robert@herjulf.net \
--cc=tgraf@suug.ch \
--cc=tom@herbertland.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).