From: Jakub Kicinski <kuba@kernel.org>
To: <Daniel.Machon@microchip.com>
Cc: <petrm@nvidia.com>, <netdev@vger.kernel.org>,
<davem@davemloft.net>, <maxime.chevallier@bootlin.com>,
<thomas.petazzoni@bootlin.com>, <edumazet@google.com>,
<pabeni@redhat.com>, <Lars.Povlsen@microchip.com>,
<Steen.Hegelund@microchip.com>, <UNGLinuxDriver@microchip.com>,
<joe@perches.com>, <linux@armlinux.org.uk>,
<Horatiu.Vultur@microchip.com>, <Julia.Lawall@inria.fr>,
<vladimir.oltean@nxp.com>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH net-next v2 1/6] net: dcb: add new pcp selector to app object
Date: Mon, 3 Oct 2022 16:34:50 -0700 [thread overview]
Message-ID: <20221003163450.7e6cbf3a@kernel.org> (raw)
In-Reply-To: <YztdsF6b6SM9E5rw@DEN-LT-70577>
On Mon, 3 Oct 2022 21:59:49 +0000 Daniel.Machon@microchip.com wrote:
> If lldpad was idd able to emit the new pcp app entries, they would be
idd?
> emitted as invalid TLV's (assuming 255 or 24 selector value), because the
> selector would be either zero or seven, which is currently not used for
> any selector by the std. We then have time to patch lldpad to do whatever
> with the new attr. Wouldn't this be acceptable?
I'm not sure I can provide sensible advice given I don't really know
how the information flow looks in case of DCB.
First off - we're talking about netlink TLVs not LLDP / DCB wire message
TLVs?
What I was saying is that if lldpad dumps the information from the
kernel and gets confused by certain TLVs - we can add an opt-in
attribute to whatever Netlink request lldpad uses, and only add the new
attrs if that opt-in attribute is present. Normal GET or DUMP requests
can both take input attributes.
Old lldpad will not send this attribute to the kernel - the kernel will
not respond with confusing attrs. The new lldpad can be patched to send
the attribute and will get all the attrs (if it actually cares).
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next prev parent reply other threads:[~2022-10-03 23:36 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-29 18:52 [PATCH net-next v2 0/6] Add new PCP and APPTRUST attributes to dcbnl Daniel Machon
2022-09-29 18:52 ` [PATCH net-next v2 1/6] net: dcb: add new pcp selector to app object Daniel Machon
2022-09-30 12:20 ` Petr Machata
2022-09-30 15:41 ` Petr Machata
2022-10-01 0:54 ` Jakub Kicinski
2022-10-03 7:52 ` Petr Machata
2022-10-03 16:25 ` Jakub Kicinski
2022-10-03 21:59 ` Daniel.Machon
2022-10-03 23:34 ` Jakub Kicinski [this message]
2022-10-04 10:56 ` Petr Machata
2022-10-04 10:20 ` Petr Machata
2022-10-04 10:52 ` Petr Machata
2022-10-04 19:51 ` Jakub Kicinski
2022-10-03 6:48 ` Daniel.Machon
2022-10-03 8:22 ` Petr Machata
2022-10-03 9:33 ` Daniel.Machon
2022-10-05 10:09 ` Petr Machata
2022-09-29 18:52 ` [PATCH net-next v2 2/6] net: dcb: add new apptrust attribute Daniel Machon
2022-09-30 13:03 ` Petr Machata
2022-09-29 18:52 ` [PATCH net-next v2 3/6] net: microchip: sparx5: add support for offloading pcp table Daniel Machon
2022-09-29 18:52 ` [PATCH net-next v2 4/6] net: microchip: sparx5: add support for apptrust Daniel Machon
2022-09-30 15:49 ` Petr Machata
2022-10-03 6:52 ` Daniel.Machon
2022-10-03 8:01 ` Petr Machata
2022-10-03 8:17 ` Daniel.Machon
2022-10-03 9:34 ` Petr Machata
2022-09-29 18:52 ` [PATCH net-next v2 5/6] net: microchip: sparx5: add support for offloading dscp table Daniel Machon
2022-09-29 18:52 ` [PATCH net-next v2 6/6] net: microchip: sparx5: add support for offloading default prio Daniel Machon
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