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From: Ido Schimmel <idosch@nvidia.com>
To: Eric Woudstra <ericwouds@gmail.com>
Cc: Petr Machata <petrm@nvidia.com>,
	Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Vladimir Oltean <olteanv@gmail.com>,
	Nikolay Aleksandrov <razor@blackwall.org>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH v1 net-next] net: mlxsw_sp: Use switchdev_handle_port_obj_add_foreign() for vxlan
Date: Mon, 10 Feb 2025 08:48:32 +0200	[thread overview]
Message-ID: <Z6mhQL-b58L5xkK4@shredder> (raw)
In-Reply-To: <20250208141518.191782-1-ericwouds@gmail.com>

On Sat, Feb 08, 2025 at 03:15:18PM +0100, Eric Woudstra wrote:
> Sending as RFC as I do not own this hardware. This code is not tested.
> 
> Vladimir found this part of the spectrum switchdev, while looking at
> another issue here:
> 
> https://lore.kernel.org/all/20250207220408.zipucrmm2yafj4wu@skbuf/
> 
> As vxlan seems a foreign port, wouldn't it be better to use
> switchdev_handle_port_obj_add_foreign() ?

Thanks for the patch, but the VXLAN port is not foreign to the other
switch ports. That is, forwarding between these ports and VXLAN happens
in hardware. And yes, switchdev_bridge_port_offload() does need to be
called for the VXLAN port so that it's assigned the same hardware domain
as the other ports.

  reply	other threads:[~2025-02-10  6:48 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-08 14:15 [RFC PATCH v1 net-next] net: mlxsw_sp: Use switchdev_handle_port_obj_add_foreign() for vxlan Eric Woudstra
2025-02-10  6:48 ` Ido Schimmel [this message]
2025-02-10 15:22   ` Vladimir Oltean
2025-02-11 14:31     ` Ido Schimmel
2025-02-11 15:23       ` Vladimir Oltean
2025-02-12 14:07         ` Ido Schimmel

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