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 8A997274B55 for ; Fri, 23 Jan 2026 07:51:23 +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=1769154683; cv=none; b=dzeQmt3/Vv5HrVPj1aA30kALfpKa7dcXvmKadEh3+g8XIAW45cSYBvdiTYG3kZ0LT5G5y1/YwSTRNynY5zF7utnbcvbw/yY5zxjbF0aq3yKzgZ7ZKrSKNZNKCtlunPyw9oHOrTxVBC4VX4cfnlheVR8E0Zp6KltP/Iv4QQqVejI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769154683; c=relaxed/simple; bh=ucSInyu8ioDMAsJedgP4ZKmImvxy5NuSNnj5zHxLezs=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=eXRwys0d0EdSoGrBb5CeI/ow2OYktwXsCKTDzzW6pmaXz1XpRj5GNnBuVuU0bopBOpXg9WZlIT/VO9VVqphPy/BWCA9jo1OSh14hb8wVz761pl6nF1b0EtHOMjTc5XvGWLINjN8YMhT1hJFs7vgTZOlxGFP+iEzEPR4PDmiY0hs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=AA9ApAFL; 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="AA9ApAFL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2A15DC4CEF1; Fri, 23 Jan 2026 07:51:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1769154683; bh=ucSInyu8ioDMAsJedgP4ZKmImvxy5NuSNnj5zHxLezs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=AA9ApAFLgwZCOkIWN3+J8/bp5n0beq+anBlhNFD431EshkrjUo+FvV2oMFI/R+5zG 3cuM8YQRBMb/6iSWMo8NPTzOXOwr12BYkI+DVPo2yNDkre6SrnIDbE0oRGvKZotq8Q FYcDDuBm7vohVCKiJGpaUFDi2HGe7PSX449OtyTa/vmHSWk3hIKWw/w15MGzqPW/GW plbtOIn55gTi8C7dfEsqOVWMn75DBfYdhNbQuhjRNNm9cnSF36KmKZQFQ0VQU/Vv2t sIwSIwVL4GYbEU12hagdIjLCvrnJJBN0gT2IRawmBgI1ruxReaVawAirU0Ihsr3A9w EfCWL5zIT/tMg== Date: Fri, 23 Jan 2026 08:51:17 +0100 From: Niklas Cassel To: Shawn Lin Cc: Jingoo Han , Manivannan Sadhasivam , Lorenzo Pieralisi , Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Rob Herring , Bjorn Helgaas , Frank Li , Randolph Lin , Samuel Holland , Charles Mirabile , tim609@andestech.com, Krishna Chaitanya Chundru , "Maciej W. Rozycki" , linux-pci@vger.kernel.org Subject: Re: [PATCH v2 2/4] PCI: dwc: Improve msg_atu_index error handling Message-ID: References: <20260122222914.523238-6-cassel@kernel.org> <20260122222914.523238-8-cassel@kernel.org> <1fc62af3-4b97-46b0-9ace-bcf2d5e6fc7f@rock-chips.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1fc62af3-4b97-46b0-9ace-bcf2d5e6fc7f@rock-chips.com> On Fri, Jan 23, 2026 at 10:07:31AM +0800, Shawn Lin wrote: > 在 2026/01/23 星期五 6:29, Niklas Cassel 写道: > > Only try to dedicate an outbound iATU to MSG TLP if use_atu_msg is set. > > If use_atu_msg is not set, it is completely useless to bump the index. > > > > Additionally, if use_atu_msg is set, and there is no available outbound > > iatu available, return an error. > > > > Nit: there is no outbound iATU available.... > > Reviewed-by: Shawn Lin Thank you, I will wait to send V3 until Maciej has had time to test. Kind regards, Niklas