From: Vladimir Oltean <olteanv@gmail.com>
To: Florian Fainelli <f.fainelli@gmail.com>
Cc: "DENG Qingfang" <dqfext@gmail.com>,
"Sean Wang" <sean.wang@mediatek.com>,
"Landen Chao" <Landen.Chao@mediatek.com>,
"Andrew Lunn" <andrew@lunn.ch>,
"Vivien Didelot" <vivien.didelot@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
"Jakub Kicinski" <kuba@kernel.org>,
"Matthias Brugger" <matthias.bgg@gmail.com>,
"Philipp Zabel" <p.zabel@pengutronix.de>,
"Russell King" <linux@armlinux.org.uk>,
netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org,
"Frank Wunderlich" <frank-w@public-files.de>,
"René van Dorst" <opensource@vdorst.com>
Subject: Re: [PATCH net-next] net: dsa: mt7530: support MDB and bridge flag operations
Date: Mon, 15 Mar 2021 22:09:39 +0200 [thread overview]
Message-ID: <20210315200939.irwyiru6m62g4a7f@skbuf> (raw)
In-Reply-To: <892918f1-bee6-7603-b8e1-3efb93104f6f@gmail.com>
On Mon, Mar 15, 2021 at 01:03:10PM -0700, Florian Fainelli wrote:
>
>
> On 3/15/2021 10:09 AM, DENG Qingfang wrote:
> > Support port MDB and bridge flag operations.
> >
> > As the hardware can manage multicast forwarding itself, offload_fwd_mark
> > can be unconditionally set to true.
> >
> > Signed-off-by: DENG Qingfang <dqfext@gmail.com>
> > ---
> > Changes since RFC:
> > Replaced BR_AUTO_MASK with BR_FLOOD | BR_LEARNING
> >
> > drivers/net/dsa/mt7530.c | 124 +++++++++++++++++++++++++++++++++++++--
> > drivers/net/dsa/mt7530.h | 1 +
> > net/dsa/tag_mtk.c | 14 +----
> > 3 files changed, 122 insertions(+), 17 deletions(-)
> >
> > diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
> > index 2342d4528b4c..f765984330c9 100644
> > --- a/drivers/net/dsa/mt7530.c
> > +++ b/drivers/net/dsa/mt7530.c
> > @@ -1000,8 +1000,9 @@ mt753x_cpu_port_enable(struct dsa_switch *ds, int port)
> > mt7530_write(priv, MT7530_PVC_P(port),
> > PORT_SPEC_TAG);
> >
> > - /* Unknown multicast frame forwarding to the cpu port */
> > - mt7530_rmw(priv, MT7530_MFC, UNM_FFP_MASK, UNM_FFP(BIT(port)));
> > + /* Disable flooding by default */
> > + mt7530_rmw(priv, MT7530_MFC, BC_FFP_MASK | UNM_FFP_MASK | UNU_FFP_MASK,
> > + BC_FFP(BIT(port)) | UNM_FFP(BIT(port)) | UNU_FFP(BIT(port)));
>
> It's not clear to me why this is appropriate especially when the ports
> operated in standalone mode, can you expand a bit more on this?
We are in the function called "mt753x_cpu_port_enable" here. It's ok to
apply this config for the CPU port.
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next prev parent reply other threads:[~2021-03-15 20:11 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-15 17:09 [PATCH net-next] net: dsa: mt7530: support MDB and bridge flag operations DENG Qingfang
2021-03-15 20:03 ` Florian Fainelli
2021-03-15 20:09 ` Vladimir Oltean [this message]
2021-03-15 20:44 ` Florian Fainelli
2021-03-15 21:15 ` Vladimir Oltean
2021-03-16 4:36 ` DENG Qingfang
2021-03-16 9:55 ` Vladimir Oltean
2021-03-16 9:56 ` Vladimir Oltean
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