From: Vladimir Oltean <olteanv@gmail.com>
To: DENG Qingfang <dqfext@gmail.com>
Cc: Sean Wang <sean.wang@mediatek.com>,
Landen Chao <Landen.Chao@mediatek.com>,
Andrew Lunn <andrew@lunn.ch>,
Vivien Didelot <vivien.didelot@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC net-next 1/2] net: dsa: tag_mtk: skip address learning on transmit to standalone ports
Date: Fri, 30 Jul 2021 19:24:03 +0300 [thread overview]
Message-ID: <20210730162403.p2dnwvwwgsxttomg@skbuf> (raw)
In-Reply-To: <20210728183705.4gea64qlbe64kkpl@skbuf>
On Wed, Jul 28, 2021 at 09:37:05PM +0300, Vladimir Oltean wrote:
> Otherwise this is as correct as can be without implementing TX
> forwarding offload for the bridge (which you've explained why it doesn't
> map 1:1 with what your hw can do). But just because a port is under a bridge
> doesn't mean that the only packets it sends belong to that bridge. Think
> AF_PACKET sockets, PTP etc. The bridge also has a no_linklocal_learn
> option that maybe should be taken into consideration for drivers that
> can do something meaningful about it. Anyway, food for thought.
Considering that you also have the option of setting
ds->assisted_learning_on_cpu_port = true and this will have less false
positives, what are the reasons why you did not choose that approach?
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
WARNING: multiple messages have this Message-ID (diff)
From: Vladimir Oltean <olteanv@gmail.com>
To: DENG Qingfang <dqfext@gmail.com>
Cc: Sean Wang <sean.wang@mediatek.com>,
Landen Chao <Landen.Chao@mediatek.com>,
Andrew Lunn <andrew@lunn.ch>,
Vivien Didelot <vivien.didelot@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC net-next 1/2] net: dsa: tag_mtk: skip address learning on transmit to standalone ports
Date: Fri, 30 Jul 2021 19:24:03 +0300 [thread overview]
Message-ID: <20210730162403.p2dnwvwwgsxttomg@skbuf> (raw)
In-Reply-To: <20210728183705.4gea64qlbe64kkpl@skbuf>
On Wed, Jul 28, 2021 at 09:37:05PM +0300, Vladimir Oltean wrote:
> Otherwise this is as correct as can be without implementing TX
> forwarding offload for the bridge (which you've explained why it doesn't
> map 1:1 with what your hw can do). But just because a port is under a bridge
> doesn't mean that the only packets it sends belong to that bridge. Think
> AF_PACKET sockets, PTP etc. The bridge also has a no_linklocal_learn
> option that maybe should be taken into consideration for drivers that
> can do something meaningful about it. Anyway, food for thought.
Considering that you also have the option of setting
ds->assisted_learning_on_cpu_port = true and this will have less false
positives, what are the reasons why you did not choose that approach?
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Vladimir Oltean <olteanv@gmail.com>
To: DENG Qingfang <dqfext@gmail.com>
Cc: Sean Wang <sean.wang@mediatek.com>,
Landen Chao <Landen.Chao@mediatek.com>,
Andrew Lunn <andrew@lunn.ch>,
Vivien Didelot <vivien.didelot@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC net-next 1/2] net: dsa: tag_mtk: skip address learning on transmit to standalone ports
Date: Fri, 30 Jul 2021 19:24:03 +0300 [thread overview]
Message-ID: <20210730162403.p2dnwvwwgsxttomg@skbuf> (raw)
In-Reply-To: <20210728183705.4gea64qlbe64kkpl@skbuf>
On Wed, Jul 28, 2021 at 09:37:05PM +0300, Vladimir Oltean wrote:
> Otherwise this is as correct as can be without implementing TX
> forwarding offload for the bridge (which you've explained why it doesn't
> map 1:1 with what your hw can do). But just because a port is under a bridge
> doesn't mean that the only packets it sends belong to that bridge. Think
> AF_PACKET sockets, PTP etc. The bridge also has a no_linklocal_learn
> option that maybe should be taken into consideration for drivers that
> can do something meaningful about it. Anyway, food for thought.
Considering that you also have the option of setting
ds->assisted_learning_on_cpu_port = true and this will have less false
positives, what are the reasons why you did not choose that approach?
next prev parent reply other threads:[~2021-07-30 16:24 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-28 17:53 [RFC net-next 0/2] mt7530 software fallback bridging fix DENG Qingfang
2021-07-28 17:53 ` DENG Qingfang
2021-07-28 17:53 ` DENG Qingfang
2021-07-28 17:53 ` [RFC net-next 1/2] net: dsa: tag_mtk: skip address learning on transmit to standalone ports DENG Qingfang
2021-07-28 17:53 ` DENG Qingfang
2021-07-28 17:53 ` DENG Qingfang
2021-07-28 18:37 ` Vladimir Oltean
2021-07-28 18:37 ` Vladimir Oltean
2021-07-28 18:37 ` Vladimir Oltean
2021-07-30 16:24 ` Vladimir Oltean [this message]
2021-07-30 16:24 ` Vladimir Oltean
2021-07-30 16:24 ` Vladimir Oltean
2021-07-30 17:32 ` DENG Qingfang
2021-07-30 17:32 ` DENG Qingfang
2021-07-30 17:32 ` DENG Qingfang
2021-07-30 17:39 ` Vladimir Oltean
2021-07-30 17:39 ` Vladimir Oltean
2021-07-30 17:39 ` Vladimir Oltean
2021-07-30 17:41 ` Vladimir Oltean
2021-07-30 17:41 ` Vladimir Oltean
2021-07-30 17:41 ` Vladimir Oltean
2021-07-30 17:58 ` DENG Qingfang
2021-07-30 17:58 ` DENG Qingfang
2021-07-30 17:58 ` DENG Qingfang
2021-07-30 19:00 ` DENG Qingfang
2021-07-30 19:00 ` DENG Qingfang
2021-07-30 19:00 ` DENG Qingfang
2021-07-30 19:07 ` Vladimir Oltean
2021-07-30 19:07 ` Vladimir Oltean
2021-07-30 19:07 ` Vladimir Oltean
2021-07-30 19:25 ` DENG Qingfang
2021-07-30 19:25 ` DENG Qingfang
2021-07-30 19:25 ` DENG Qingfang
2021-07-30 19:30 ` Vladimir Oltean
2021-07-30 19:30 ` Vladimir Oltean
2021-07-30 19:30 ` Vladimir Oltean
2021-07-28 17:53 ` [RFC net-next 2/2] net: dsa: mt7530: trap packets from standalone ports to the CPU DENG Qingfang
2021-07-28 17:53 ` DENG Qingfang
2021-07-28 17:53 ` DENG Qingfang
2021-07-28 18:47 ` Vladimir Oltean
2021-07-28 18:47 ` Vladimir Oltean
2021-07-28 18:47 ` Vladimir Oltean
2021-07-29 15:28 ` Vladimir Oltean
2021-07-29 15:28 ` Vladimir Oltean
2021-07-29 15:28 ` Vladimir Oltean
2021-07-29 16:11 ` DENG Qingfang
2021-07-29 16:11 ` DENG Qingfang
2021-07-29 16:11 ` DENG Qingfang
2021-07-29 16:50 ` Vladimir Oltean
2021-07-29 16:50 ` Vladimir Oltean
2021-07-29 16:50 ` Vladimir Oltean
2021-07-30 15:45 ` DENG Qingfang
2021-07-30 15:45 ` DENG Qingfang
2021-07-30 15:45 ` DENG Qingfang
2021-07-30 15:58 ` DENG Qingfang
2021-07-30 15:58 ` DENG Qingfang
2021-07-30 15:58 ` DENG Qingfang
2021-07-30 16:18 ` Vladimir Oltean
2021-07-30 16:18 ` Vladimir Oltean
2021-07-30 16:18 ` Vladimir Oltean
2021-07-30 17:21 ` DENG Qingfang
2021-07-30 17:21 ` DENG Qingfang
2021-07-30 17:21 ` DENG Qingfang
2021-07-30 17:35 ` Vladimir Oltean
2021-07-30 17:35 ` Vladimir Oltean
2021-07-30 17:35 ` Vladimir Oltean
2021-07-30 17:51 ` DENG Qingfang
2021-07-30 17:51 ` DENG Qingfang
2021-07-30 17:51 ` DENG Qingfang
2021-07-28 18:08 ` [RFC net-next 0/2] mt7530 software fallback bridging fix Vladimir Oltean
2021-07-28 18:08 ` Vladimir Oltean
2021-07-28 18:08 ` Vladimir Oltean
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