From: Jakub Kicinski <jakub.kicinski@netronome.com>
To: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Cc: grygorii.strashko@ti.com, linux-omap@vger.kernel.org,
LKML <linux-kernel@vger.kernel.org>,
Linux Netdev List <netdev@vger.kernel.org>,
ilias.apalodimas@linaro.org, hawk@kernel.org,
xdp-newbies@vger.kernel.org, Alexei Starovoitov <ast@kernel.org>,
aniel@iogearbox.net, John Fastabend <john.fastabend@gmail.com>
Subject: Re: [RFC PATCH 3/3] net: ethernet: ti: cpsw: add XDP support
Date: Thu, 18 Apr 2019 10:41:11 -0700 [thread overview]
Message-ID: <20190418104111.559a0e74@cakuba.netronome.com> (raw)
In-Reply-To: <20190418094008.GB27879@khorivan>
On Thu, 18 Apr 2019 12:40:10 +0300, Ivan Khoronzhuk wrote:
> >work? The stack's TX ring has a lock, and can be used from any CPU,
> >while XDP TX rings are per-PCU, no?
> Yes and no.
> am572 has more queues then CPU num, How I can choose tx queue not based on CPU
> num? It's always shared and has to have lock, and cpdma is done in this way.
Oh, I see, you already have another lock.
> Here another thing bothering me, I send it to queue 0 always, instead of
> taking cpu num. Not sure about this, but I expect to have some tx queue
> not bind to cpu and didn't find a way it can be changed dynamically in
> redirect.
Not sure I understand :)
next prev parent reply other threads:[~2019-04-18 17:41 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-17 17:49 [RFC PATCH 0/3] net: ethernet: ti: cpsw: Add XDP support Ivan Khoronzhuk
2019-04-17 17:49 ` [RFC PATCH 1/3] net: ethernet: ti: davinci_cpdma: add dma mapped submit Ivan Khoronzhuk
2019-04-17 17:49 ` [RFC PATCH 2/3] net: ethernet: ti: davinci_cpdma: return handler status Ivan Khoronzhuk
2019-04-17 17:49 ` [RFC PATCH 3/3] net: ethernet: ti: cpsw: add XDP support Ivan Khoronzhuk
2019-04-17 22:46 ` Jakub Kicinski
2019-04-18 9:40 ` Ivan Khoronzhuk
2019-04-18 17:41 ` Jakub Kicinski [this message]
2019-04-18 18:30 ` Ivan Khoronzhuk
2019-04-18 18:44 ` Jakub Kicinski
2019-04-19 8:31 ` Ilias Apalodimas
2019-04-19 10:42 ` Ivan Khoronzhuk
2019-04-18 6:12 ` [RFC PATCH 0/3] net: ethernet: ti: cpsw: Add " Björn Töpel
2019-04-18 9:47 ` Ivan Khoronzhuk
2019-04-19 8:24 ` Grygorii Strashko
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=20190418104111.559a0e74@cakuba.netronome.com \
--to=jakub.kicinski@netronome.com \
--cc=aniel@iogearbox.net \
--cc=ast@kernel.org \
--cc=grygorii.strashko@ti.com \
--cc=hawk@kernel.org \
--cc=ilias.apalodimas@linaro.org \
--cc=ivan.khoronzhuk@linaro.org \
--cc=john.fastabend@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-omap@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=xdp-newbies@vger.kernel.org \
/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).