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Message-ID: <CACna6rwVRB2q89EOKNK=5iQogE6_LBGUo1=M1ED0OaR7UqLAAg@mail.gmail.com>
Date: Thu, 26 Feb 2015 16:30:00 +0100
From: Rafał Miłecki <zajec5@...il.com>
To: Andrew Lunn <andrew@...n.ch>
Cc: Florian Fainelli <f.fainelli@...il.com>,
Andy Gospodarek <gospo@...ulusnetworks.com>,
"David S. Miller" <davem@...emloft.net>,
Network Development <netdev@...r.kernel.org>,
Jonas Gorski <jogo@...nwrt.org>,
Hauke Mehrtens <hauke@...ke-m.de>,
Felix Fietkau <nbd@...nwrt.org>, Jiri Pirko <jiri@...nulli.us>
Subject: Re: [PATCH] net: phy: b53: switchdev driver for Broadcom BCM53xx switches
On 26 February 2015 at 16:18, Andrew Lunn <andrew@...n.ch> wrote:
> On Thu, Feb 26, 2015 at 03:58:40PM +0100, Rafa?? Mi??ecki wrote:
>> On 25 February 2015 at 15:19, Andrew Lunn <andrew@...n.ch> wrote:
>> >> What do you mean by these recent patches? Has DSA recently received a
>> >> support for bridging ports in the hardware? Like setting VLANs using
>> >> some "bridge" comment (nl API) or something? Because I'm not aware of
>> >> that.
>> >
>> > Yes. Scan over netdev list for the last week. e.g:
>> >
>> > http://comments.gmane.org/gmane.linux.network/350754
>>
>> Hm, I can see it was actually merged to the net-next already:
>> https://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/commit/?id=bb66be1c549a0760500cfad404b3d79a136d0e44
>>
>> But this dsa implementation is still totally unclear to me. So I can
>> see we now have
>> 1) port_join_bridge
>> 2) port_leave_bridge
>>
>> How does it allow me to bridge few ports with specifying PVID /
>> (UN)TAG for some of them?
>
> How about going back to the beginning. Look at the Starfigher 2 DSA
> driver. Do you have similar registers? Can you map the Starfigher code
> onto the b53 registers? If so, just write a new driver following the
> Starfigher as a reference.
It doesn't really answer my question as I don't see functionality I'm
looking for in bcm_sf2. I don't see it handling (un)tagging or PVID
anywhere. It makes me believe such features are not implemented (and
not configurable) using bridges/dsa at all. Can you any API related to
untagging / PVID?
--
Rafał
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