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From: Petr Machata <petrm@nvidia.com>
To: Petr Machata <petrm@nvidia.com>
Cc: Daniel Machon <daniel.machon@microchip.com>,
	<netdev@vger.kernel.org>, <davem@davemloft.net>,
	<maxime.chevallier@bootlin.com>, <thomas.petazzoni@bootlin.com>,
	<edumazet@google.com>, <kuba@kernel.org>, <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: Fri, 30 Sep 2022 17:41:22 +0200	[thread overview]
Message-ID: <874jwovp6x.fsf@nvidia.com> (raw)
In-Reply-To: <87leq1uiyc.fsf@nvidia.com>


Petr Machata <petrm@nvidia.com> writes:

> We can pack the new stuff into a smaller payload. The inner attribute
> would not be DCB_ATTR_DCB_APP, but say DCB_ATTR_DCB_PCP, which would
> imply the selector. The payload can be struct { u8 prio; u16 proto; }.
> This would have been bounced by the old UAPI, so we know no userspace
> makes use of that.

Except this will end up having size of 4 anyway due to alignment. We'll
have to make it a struct { ... } __attribute__((__packed__));

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  reply	other threads:[~2022-09-30 15:51 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 [this message]
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
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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