From: Andrew Lunn <andrew@lunn.ch>
To: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Cc: Russell King - ARM Linux admin <linux@armlinux.org.uk>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net] net: mvpp2: Enable autoneg bypass for 1000BaseX/2500BaseX ports
Date: Fri, 29 May 2020 18:33:40 +0200 [thread overview]
Message-ID: <20200529163340.GI869823@lunn.ch> (raw)
In-Reply-To: <20200529175225.a3be1b4faaa0408e165435ad@suse.de>
> > By propagated, you mean if the external link is down, the link between
> > the switch and node 1 will also be forced down, at the SERDES level?
>
> yes
>
> > And if external ports are down, the nodes cannot talk to each other?
>
> correct
>
> > External link down causes the whole in box network to fall apart? That
> > seems a rather odd design.
>
> as I'm not an expert in ceph, I can't judge. But I'll bring it up.
I guess for a single use appliance this is O.K. But it makes the
hardware unusable as a general purpose server.
Is there a variant of the hardware to be used as a general purpose
server, rather than as a Ceph appliance? If so, does it share the same
DT files?
> > What you are actually interested in is the sync state of the SERDES?
> > The link is up if the SERDES has sync.
>
> yes, that's what I need. How can I do that ?
Given the current code, you cannot. Now we understand the
requirements, we can come up with some ideas how to do this properly.
Andrew
next prev parent reply other threads:[~2020-05-29 16:33 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-28 12:11 [PATCH net] net: mvpp2: Enable autoneg bypass for 1000BaseX/2500BaseX ports Thomas Bogendoerfer
2020-05-28 13:07 ` Russell King - ARM Linux admin
2020-05-28 13:17 ` Thomas Bogendoerfer
2020-05-28 13:56 ` Russell King - ARM Linux admin
2020-05-28 14:33 ` Thomas Bogendoerfer
2020-05-28 14:48 ` Russell King - ARM Linux admin
2020-05-28 18:43 ` Thomas Bogendoerfer
2020-05-28 20:15 ` Andrew Lunn
2020-05-28 22:04 ` Russell King - ARM Linux admin
2020-05-29 11:05 ` Thomas Bogendoerfer
2020-05-29 14:59 ` Andrew Lunn
2020-05-29 15:51 ` Russell King - ARM Linux admin
2020-05-29 16:25 ` Andrew Lunn
2020-05-29 17:02 ` Russell King - ARM Linux admin
2020-05-29 15:52 ` Thomas Bogendoerfer
2020-05-29 16:33 ` Andrew Lunn [this message]
2020-06-02 8:08 ` Thomas Bogendoerfer
2020-06-02 22:50 ` Russell King - ARM Linux admin
2020-06-03 12:31 ` Russell King - ARM Linux admin
2020-06-03 13:21 ` Andrew Lunn
2020-06-03 14:58 ` Russell King - ARM Linux admin
2020-05-28 16:33 ` Andrew Lunn
2020-05-28 18:43 ` Thomas Bogendoerfer
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