From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 71A3F380FC3 for ; Mon, 25 May 2026 19:47:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779738464; cv=none; b=XYXft5w4yin3yQJjVRC/TLM5ek8SOQ9n3XxClaLISN6opOBFFmIz6vDmSHgI62WHigO2eWEfRGnO164rh9w3MGkpLM6gjLzS1x1M+D3nzdii9JBcdBkXw+P5GGoeBD6/NrbEDAqUYQQjTCYhB9zbobjA9JQ/mbUtSTX3x6hHkl0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779738464; c=relaxed/simple; bh=SfgDUGiTc0GebUzJVRklLwdpbnvBHF9lKfZkwcDFjgo=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=tNDb2aMo31fcEoJ9inF4jpHHdJmKy0OBziXuHKMybxopFWOrYI/yf74fKrCToqp5fJs0i9hinidnA6q2bwVhU0bMzrqzHZjUOXH+TFSGkyidcxb+NPfnOO2WzV24ZFNJ7WQBeOyD+FZJVseBSLZVTZVdcviqek/6Rp8rLfve2sk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hpNRzXcd; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="hpNRzXcd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7715A1F000E9; Mon, 25 May 2026 19:47:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779738461; bh=v7wdcmNSjGVdCYOovJ0w8o2PtIKtBQIuBvnAy6xomfI=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=hpNRzXcdJb6i3Ilv5MJ6MUCpnpNRHPS/HnMVtLKXsPfO6/9jm84B3Dm7tM6hZK6t+ NPBLYbCI637LlcsOeRlZTct/e/pTy5LhINH57rwBsZvz5I21432HVYMDSeC5jvCuWf 81Dt9q0MuervfgirtxnNCAh0nWGoxKK4khtbZn+bAt4WQ4zH8G0IYVuCs7UJcYv77Q NJUWzZimP3MU5FKX4B8r5mcnFh2eouhnU4weWGNz0E7DK7ovigDHz20Mt28S7SkvUb im7sbAPL236lWUp35pN1U/2HSHtp+SehQMJU2JDG8QBc78dOautAjArYmPWZN53N1r ABIyzfMQ9UMsw== Date: Mon, 25 May 2026 12:47:40 -0700 From: Jakub Kicinski To: Rosen Penev Cc: netdev@vger.kernel.org, Andrew Lunn , "David S. Miller" , Eric Dumazet , Paolo Abeni Subject: Re: [PATCHv2 net-next] net: ucc_geth: Batch RX packets before stack handoff Message-ID: <20260525124740.5e71e96c@kernel.org> In-Reply-To: <20260521060729.2293222-1-rosenp@gmail.com> References: <20260521060729.2293222-1-rosenp@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Wed, 20 May 2026 23:07:29 -0700 Rosen Penev wrote: > It would be nice to use napi_gro_receive, but the tradeoff is lower > routing performance. There is no support for hardware checksum offload, > which really hurts routing performance. Not sure this was clear from the previous discussion but AFAIK GRO will fall back to the list processing if disabled with ethtool -K So the argument of GRO-enabled being slower for forwarding is moot. -- pw-bot: cr