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From: Andrew Lunn <andrew@lunn.ch>
To: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Cc: Ivan Vecera <ivecera@redhat.com>, Jiri Pirko <jiri@resnulli.us>,
	netdev@vger.kernel.org, grygorii.strashko@ti.com,
	ivan.khoronzhuk@linaro.org, nsekhar@ti.com,
	francois.ozog@linaro.org, yogeshs@ti.com, spatton@ti.com
Subject: Re: [PATCH 0/4] RFC CPSW switchdev mode
Date: Thu, 24 May 2018 16:54:41 +0200	[thread overview]
Message-ID: <20180524145441.GE5128@lunn.ch> (raw)
In-Reply-To: <20180524140831.GA16793@apalos>

> There's configuration needs from customers adding or not adding a VLAN to the
> CPU port. In my configuration examples for instance, if the cpu port is not
> added to the bridge, you cannot get an ip address on it. 

If you cannot get an IP address, it is plain broken. The whole idea is
that switch port interfaces are just linux interfaces. A linux
interface which cannot get an IP address is broken.

> Similar cases exist for customers on adding MDBs as far as i know. So they want
> the "customer facing ports" to have the MDBs present but not the cpu port.

That i can understand. And it should actually work now with
switchdev. It performs IGMP snooping, and if there is nothing joining
the group on the CPU, it won't add an MDB entry to forward traffic to
the CPU.

> Adding a cpu port that cannot transmit or receive traffic is a bit "weird"

And how is it supposed to send BPDUs? STP is going to be broken....

    Andrew

  reply	other threads:[~2018-05-24 14:54 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-24  6:56 [PATCH 0/4] RFC CPSW switchdev mode Ilias Apalodimas
2018-05-24  6:56 ` [PATCH 1/4] cpsw: move common headers definitions to cpsw_priv.h Ilias Apalodimas
2018-05-24  6:56 ` [PATCH 2/4] cpsw_ale: add support functions for switchdev Ilias Apalodimas
2018-05-24  6:56 ` [PATCH 3/4] cpsw_switchdev: add switchdev support files Ilias Apalodimas
2018-05-24 10:00   ` Maxim Uvarov
2018-05-27  4:39   ` kbuild test robot
2018-05-24  6:56 ` [PATCH 4/4] cpsw: add switchdev support Ilias Apalodimas
2018-05-24 13:12   ` Andrew Lunn
2018-05-24 13:32     ` Ilias Apalodimas
2018-05-24 16:39       ` Andrew Lunn
2018-05-25  4:56         ` Ilias Apalodimas
2018-06-01 21:48           ` Florian Fainelli
2018-06-02 10:34             ` Ilias Apalodimas
2018-06-02 16:10               ` Florian Fainelli
2018-06-02 16:52                 ` Ilias Apalodimas
2018-06-05 21:03               ` Grygorii Strashko
2018-06-05 21:37                 ` Florian Fainelli
2018-05-24  8:05 ` [PATCH 0/4] RFC CPSW switchdev mode Jiri Pirko
2018-05-24  8:48   ` Ilias Apalodimas
2018-05-24 12:54     ` Andrew Lunn
2018-05-24 13:44       ` Ivan Vecera
2018-05-24 14:08         ` Ilias Apalodimas
2018-05-24 14:54           ` Andrew Lunn [this message]
2018-05-24 15:07             ` Ilias Apalodimas
2018-05-24 15:25               ` Andrew Lunn
2018-05-24 16:02                 ` Ilias Apalodimas
2018-05-24 16:33                   ` Andrew Lunn
2018-05-25  6:29                     ` Ilias Apalodimas
2018-05-25 10:28                       ` Ilias Apalodimas
2018-05-25 11:59                         ` Andrew Lunn
2018-05-25 12:09                       ` Andrew Lunn
2018-05-31 15:27                         ` Ilias Apalodimas
2018-06-02 23:28           ` Grygorii Strashko
2018-06-03  0:08             ` Andrew Lunn
2018-06-05 21:18               ` Grygorii Strashko
2018-06-05 21:28                 ` Andrew Lunn
2018-06-05 21:42                   ` Grygorii Strashko
2018-06-05 21:55                     ` Andrew Lunn
2018-06-03  0:26             ` Andrew Lunn
2018-06-05 23:23               ` Grygorii Strashko
2018-06-05 23:49                 ` Andrew Lunn
2018-06-06  8:23                 ` Ivan Khoronzhuk
2018-06-03  0:37             ` Andrew Lunn
2018-06-05 21:31               ` Grygorii Strashko
2018-06-05 21:37                 ` Andrew Lunn
2018-06-03  0:49             ` Andrew Lunn
2018-06-05 22:45               ` Grygorii Strashko
2018-06-05 23:40                 ` Andrew Lunn
2018-06-01 21:29 ` Grygorii Strashko
2018-06-02 14:08   ` Andrew Lunn
2018-06-05 22:59     ` Grygorii Strashko
2018-06-05 23:53       ` Andrew Lunn
2018-06-06  6:42         ` Ilias Apalodimas

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