From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 1174E1D63E4; Tue, 12 May 2026 02:20:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778552421; cv=none; b=Z+u9gotOCnNiBr51Os7vg8NI1E51IRxFgcv4hDrNeaeiOelYYkANgqsd3Ruk2Lrp/Ao3KZuQQwIRNudPQHMWgXa++kLRISGkGbyYlT3GUdd5j3QGnkjRgmn6orxuTWIzyzd8dCUKbcYaBQkAp3ezsmfVdOhYcnIIdqJNkeDpCUM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778552421; c=relaxed/simple; bh=qCpmwOBMO2WUkTkzHq+nS/FnpxquV63bE+Zm5s0BjQ8=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Vxm4TVn7jZzw65HqqGK1wmCfTYio2TNJUAgi1brr5QmUOBBVCBr1DMUER2ml8Dt5BWTs6atTLa0ZrcpIM20eoMYb1lI67tYiUbDUgCvKt79g/BwMrk2hMEUPWmzE3IroW/+7VVkFOuyrFZ1vVeMXFkjjBp7KJbdJjnkl/eG5ZXY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qGxfJUCl; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="qGxfJUCl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D2FEFC2BCF5; Tue, 12 May 2026 02:20:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778552420; bh=qCpmwOBMO2WUkTkzHq+nS/FnpxquV63bE+Zm5s0BjQ8=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=qGxfJUCl4H7hCiKozqcohLBmSz2UGHjAUAnhFnbCkokN/8U5+DNCy3gkdREIPy5lT FcuKyjngJ4CLIq0CowDYsBvmOjYrJRSQ/fcF4fZheIk5E9BeebiHbOg+5bpzhegKpM /KDCxxemrJV0rjqXJnckd7dkSlKt6+E3hdojzLsWWTFF3wj41TvRqlfubpWfGfinyI 2GEAYue+fArQRJQBENFSnlCcU0Qmx+0fd3NtT7Lj5QnSadh4lBHWrnX2s18U4nAv+O YWfd8QL3KimEIygt1/6FVwEaPCoANw85ANpVmOXB/P/sdTA6ocdQxV68U16KQQaVlQ BVg7iY1KhqMkA== Date: Mon, 11 May 2026 19:20:18 -0700 From: Jakub Kicinski To: Daniel Machon Cc: Andrew Lunn , "David S. Miller" , Eric Dumazet , Paolo Abeni , Horatiu Vultur , Steen Hegelund , , "Alexei Starovoitov" , Daniel Borkmann , "Jesper Dangaard Brouer" , John Fastabend , Stanislav Fomichev , Herve Codina , Arnd Bergmann , Greg Kroah-Hartman , Mohsin Bashir , , , , Subject: Re: [PATCH net-next v4 00/13] net: lan966x: add support for PCIe FDMA Message-ID: <20260511192018.49dfcd7b@kernel.org> In-Reply-To: <20260508-lan966x-pci-fdma-v4-0-14e0c89d8d63@microchip.com> References: <20260508-lan966x-pci-fdma-v4-0-14e0c89d8d63@microchip.com> Precedence: bulk X-Mailing-List: bpf@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 Fri, 8 May 2026 09:35:24 +0200 Daniel Machon wrote: > When lan966x operates as a PCIe endpoint, the driver currently uses > register-based I/O for frame injection and extraction. This approach is > functional but slow, topping out at around 33 Mbps on an Intel x86 host > with a lan966x PCIe card. Looks like sashiko-bot responded but only CCed bpf@ Please let us know if all the issues are false positives, I'm going to assume for now that at least one of the issues is real :)