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Date: Tue, 17 Mar 2026 14:36:53 -0700
From: Jakub Kicinski <kuba@kernel.org>
To: Saeed Mahameed <saeed@kernel.org>
Cc: Tariq Toukan <tariqt@nvidia.com>, Eric Dumazet <edumazet@google.com>,
 Paolo Abeni <pabeni@redhat.com>, Andrew Lunn <andrew+netdev@lunn.ch>,
 "David S. Miller" <davem@davemloft.net>, Saeed Mahameed
 <saeedm@nvidia.com>, Mark Bloch <mbloch@nvidia.com>, Leon Romanovsky
 <leon@kernel.org>, netdev@vger.kernel.org, linux-rdma@vger.kernel.org,
 linux-kernel@vger.kernel.org, Gal Pressman <gal@nvidia.com>, Moshe Shemesh
 <moshe@nvidia.com>, Dragos Tatulea <dtatulea@nvidia.com>
Subject: Re: [PATCH net-next] net/mlx5e: Enable mac forwarding on uplink
 representor
Message-ID: <20260317143653.0eaa50a1@kernel.org>
In-Reply-To: <abmZf3bRl2uQ69EA@sx113>
References: <20260310104841.1862380-1-tariqt@nvidia.com>
	<20260311203319.76d35ce0@kernel.org>
	<abmZf3bRl2uQ69EA@sx113>
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On Tue, 17 Mar 2026 11:12:15 -0700 Saeed Mahameed wrote:
> On 11 Mar 20:33, Jakub Kicinski wrote:
> >On Tue, 10 Mar 2026 12:48:41 +0200 Tariq Toukan wrote:  
> >> This small patch enables mac forwarding to MPFs via uplink representor,  
> >
> >"mac forwarding to MPF via uplink representor"
> >Can't wrap my head around this "via". Could you explain this better?
> >Perhaps some tool can spit out a little diagram to make the flow clear?
> >  
> 
> Mac forwarding in the sense of linux bridge mac forwarding mechanism which
> requires set_rx_mode ndo to be implemented. 
> 
> Linux-bridge --> mlx5-uplink-rep --> set_rx_mode --> set up mac in HW.

And the actual forwarding happens in SW bridge? This is just to
configure the Rx filter not to discard on Rx?