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 6A24739DBF2; Tue, 16 Jun 2026 09:13:45 +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=1781601226; cv=none; b=MkUrJyYkpYdD2xXy3W8HjGCi8j5UbgeZIxUjjUvu7nHzZWGYLLiyJUeUXQ44M6rU9e9szOmMq70roGiY4VrEj+LRsb4ewQA18HAVNxqKg2yJnqv31cEP0zsQo4g1pftsGHTzSod2pgu1LvCHD3EvpblpTNLvmYLh23pFvZMkCRA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781601226; c=relaxed/simple; bh=dr5QjL3Y5+7Y/dCPDwngV6wqM9mvwgQs8oxaLaUIUrA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=tU+sVaLn6i0bDOCyYO8eJuNhgcz4XymWrK3vnVmW56EsLcxjm3O4cQgZDUnov8AHu9DoPZiJwpm3Zd/0ee/idko1n4Yn9ATPnUUllanYkiQ5wGIG9nydVVMhTZDkQ1S8bMRAZT2xymBxX/FpvNmAy+NbaJmF/pprGH2ikP4Q4eI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mlIOg8pb; 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="mlIOg8pb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F01011F000E9; Tue, 16 Jun 2026 09:13:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781601225; bh=T6O0q1IfXtevvhpoYxo0G7LAbHxOjdSWxBrNhX9eDVE=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=mlIOg8pbv1qOCEvNNDhAPtuDD04+gXQ/Xhse2HRlLBTtPUftUc2rudUqDY4awhyoS iPgd5rI0w1Xh0dKxqLIhJ5QzGXuuKfrMqIFryOMr1zi38dYd4VSlD/7IIdyxeJlcsJ Cw5EI4ZopUH0vkI9eug1lykNfJwVTMA8ws0Vzf31ImBOtf7pQhK99Du5pgDgEdZ9TN SIclzhh2ZWuT+nobYj3nW8occsmHvSxumKN7pl9mrAAd3WbEHffgPf6P/BxwSJj3kY Kki9er0GHtysQfDL/pDEzjKWpzUUhcaKmA+6SKOIQw+ncVLTDjeRrxXUUvJkuZf8cZ oCdGBWUMZCTqg== Date: Tue, 16 Jun 2026 11:13:39 +0200 From: Niklas Cassel To: Koichiro Den Cc: Manivannan Sadhasivam , Vinod Koul , Frank Li , Gustavo Pimentel , Kees Cook , Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Kishon Vijay Abraham I , Bjorn Helgaas , Christoph Hellwig , Serge Semin , Cai Huoqing , Devendra K Verma , dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 00/17] dmaengine: dw-edma: Support dynamic LL appends Message-ID: References: <20260615154111.2174161-1-den@valinux.co.jp> Precedence: bulk X-Mailing-List: dmaengine@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260615154111.2174161-1-den@valinux.co.jp> Hello Koichiro, On Tue, Jun 16, 2026 at 12:40:54AM +0900, Koichiro Den wrote: > Hi, > > This series is a reworked version of Frank's earlier RFT series: > > https://lore.kernel.org/dmaengine/20260109-edma_dymatic-v1-0-9a98c9c98536@nxp.com/ > > After discussing the HDMA test results with Frank, I am sending this as a > standalone series that keeps the main dynamic-append direction, while adding the > fixes and HDMA handling needed to make it work reliably on both eDMA and HDMA. > > Several patches are kept from, or based on, Frank's RFT series; the individual > patches carry the corresponding attribution. > > The series has been tested on both eDMA and HDMA systems. Both completed the fio > test set reliably; performance results are shown below. Great work! The performance increase is significant :) In Frank's earlier RFT series, the change "dmaengine: dw-edma: Dynamically append requests while running" broke the pci_endpoint_test selftest: https://lore.kernel.org/dmaengine/aXNQcowVEMaE1xr5@ryzen/ I can see that you have included a modified version of this change in this series. Does the pci_endpoint_test selftest pass with your series? Kind regards, Niklas