From: Vladimir Oltean <olteanv@gmail.com>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Tobias Waldekranz <tobias@waldekranz.com>,
davem@davemloft.net, kuba@kernel.org, vivien.didelot@gmail.com,
f.fainelli@gmail.com, netdev@vger.kernel.org, robh+dt@kernel.org,
devicetree@vger.kernel.org
Subject: Re: [PATCH net-next 2/3] net: dsa: Allow default tag protocol to be overridden from DT
Date: Mon, 29 Mar 2021 00:53:09 +0300 [thread overview]
Message-ID: <20210328215309.sgsenja2kmjx45t2@skbuf> (raw)
In-Reply-To: <YGCmS2rcypegGmYa@lunn.ch>
On Sun, Mar 28, 2021 at 05:52:43PM +0200, Andrew Lunn wrote:
> > +static int dsa_switch_setup_tag_protocol(struct dsa_switch *ds)
> > +{
> > + const struct dsa_device_ops *tag_ops = ds->dst->tag_ops;
> > + struct dsa_switch_tree *dst = ds->dst;
> > + int port, err;
> > +
> > + if (tag_ops->proto == dst->default_proto)
> > + return 0;
> > +
> > + if (!ds->ops->change_tag_protocol) {
> > + dev_err(ds->dev, "Tag protocol cannot be modified\n");
> > + return -EINVAL;
> > + }
> > +
> > + for (port = 0; port < ds->num_ports; port++) {
> > + if (!(dsa_is_dsa_port(ds, port) || dsa_is_cpu_port(ds, port)))
> > + continue;
>
> dsa_is_dsa_port() is interesting. Do we care about the tagging
> protocol on DSA ports? We never see that traffic?
I believe this comes from me (see dsa_switch_tag_proto_match). I did not
take into consideration at that time the fact that Marvell switches can
translate between DSA and EDSA. So I assumed that every switch in the
tree needs a notification about the tagging protocol, not just the
top-most one.
next prev parent reply other threads:[~2021-03-28 21:54 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-26 10:56 [PATCH net-next 0/3] net: dsa: Allow default tag protocol to be overridden from DT Tobias Waldekranz
2021-03-26 10:56 ` [PATCH net-next 1/3] net: dsa: mv88e6xxx: Allow dynamic reconfiguration of tag protocol Tobias Waldekranz
2021-03-28 15:24 ` Andrew Lunn
2021-04-06 9:07 ` Tobias Waldekranz
2021-04-06 13:30 ` Andrew Lunn
2021-03-26 10:56 ` [PATCH net-next 2/3] net: dsa: Allow default tag protocol to be overridden from DT Tobias Waldekranz
2021-03-26 12:57 ` Vladimir Oltean
2021-03-26 13:33 ` Tobias Waldekranz
2021-03-31 13:20 ` Vladimir Oltean
2021-03-28 15:52 ` Andrew Lunn
2021-03-28 21:53 ` Vladimir Oltean [this message]
2021-03-28 22:04 ` Andrew Lunn
2021-03-29 7:15 ` Vladimir Oltean
2021-03-26 10:56 ` [PATCH net-next 3/3] dt-bindings: net: dsa: Document dsa,tag-protocol property Tobias Waldekranz
2021-03-27 18:13 ` Rob Herring
2021-04-06 9:52 ` Tobias Waldekranz
2021-04-06 13:30 ` Andrew Lunn
2021-04-07 23:34 ` Vladimir Oltean
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=20210328215309.sgsenja2kmjx45t2@skbuf \
--to=olteanv@gmail.com \
--cc=andrew@lunn.ch \
--cc=davem@davemloft.net \
--cc=devicetree@vger.kernel.org \
--cc=f.fainelli@gmail.com \
--cc=kuba@kernel.org \
--cc=netdev@vger.kernel.org \
--cc=robh+dt@kernel.org \
--cc=tobias@waldekranz.com \
--cc=vivien.didelot@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).