From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7C2F4C5519F for ; Sat, 14 Nov 2020 16:53:45 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CF56D2080C for ; Sat, 14 Nov 2020 16:53:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CF56D2080C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id 8890C872E1; Sat, 14 Nov 2020 16:53:44 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id eTCKtHpiz+lW; Sat, 14 Nov 2020 16:53:44 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by whitealder.osuosl.org (Postfix) with ESMTP id 25411872E3; Sat, 14 Nov 2020 16:53:44 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 0F048C088E; Sat, 14 Nov 2020 16:53:44 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 0C610C0800 for ; Sat, 14 Nov 2020 16:53:43 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id 00A5F876F2 for ; Sat, 14 Nov 2020 16:53:43 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id f2ecGyDVxqIx for ; Sat, 14 Nov 2020 16:53:42 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by hemlock.osuosl.org (Postfix) with ESMTPS id CFD9B87697 for ; Sat, 14 Nov 2020 16:53:41 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id CD7B267373; Sat, 14 Nov 2020 17:53:36 +0100 (CET) Date: Sat, 14 Nov 2020 17:53:36 +0100 From: Christoph Hellwig To: Barry Song Subject: Re: [PATCH v3 1/2] dma-mapping: add benchmark support for streaming DMA APIs Message-ID: <20201114165336.GA24844@lst.de> References: <20201102080646.2180-1-song.bao.hua@hisilicon.com> <20201102080646.2180-2-song.bao.hua@hisilicon.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20201102080646.2180-2-song.bao.hua@hisilicon.com> User-Agent: Mutt/1.5.17 (2007-11-01) Cc: Shuah Khan , xuwei5@huawei.com, Will Deacon , linuxarm@huawei.com, iommu@lists.linux-foundation.org, linux-kselftest@vger.kernel.org, robin.murphy@arm.com, hch@lst.de X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" Lots of > 80 char lines. Please fix up the style. I think this needs to set a dma mask as behavior for unlimited dma mask vs the default 32-bit one can be very different. I also think you need to be able to pass the direction or have different tests for directions. bidirectional is not exactly heavily used and pays more cache management penality. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu