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Date: Wed, 20 May 2026 17:45:45 -0700
From: Jakub Kicinski <kuba@kernel.org>
To: Rosen Penev <rosenp@gmail.com>
Cc: netdev@vger.kernel.org, Andrew Lunn <andrew+netdev@lunn.ch>, "David S.
 Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Paolo
 Abeni <pabeni@redhat.com>, "open list:FREESCALE QUICC ENGINE UCC ETHERNET
 DRIVER" <linuxppc-dev@lists.ozlabs.org>, open list
 <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH net-next] net: ucc_geth: Batch RX packets before stack
 handoff
Message-ID: <20260520174545.69766438@kernel.org>
In-Reply-To: <CAKxU2N_vHyqZK8tBbYLo49iOUJSO56rgqbSdw3CnCUZjbs1qNw@mail.gmail.com>
References: <20260517192856.3925-1-rosenp@gmail.com>
	<20260520165746.7ed10c7b@kernel.org>
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On Wed, 20 May 2026 17:39:41 -0700 Rosen Penev wrote:
> > On Sun, 17 May 2026 12:28:56 -0700 Rosen Penev wrote:  
> > > Collect received skbs on a local list during RX polling and pass the
> > > completed batch to netif_receive_skb_list(). This lets the networking
> > > stack process packets from a poll cycle in bulk instead of handing each
> > > skb up individually.  
> >
> > GRO should be even better.  
> GRO will result in slower routing performance because there is no
> hardware checksum.

Mention this in the commit message too.
Network adapters without checksum offload are pretty rare these days.
Speaking of being old, do you know if this driver is used in practice?
Maybe we can delete it.