From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3s4NgV6pFRzDqRs for ; Thu, 4 Aug 2016 05:39:34 +1000 (AEST) Received: from pps.filterd (m0098417.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.11/8.16.0.11) with SMTP id u73JdIaS001253 for ; Wed, 3 Aug 2016 15:39:32 -0400 Received: from e24smtp05.br.ibm.com (e24smtp05.br.ibm.com [32.104.18.26]) by mx0a-001b2d01.pphosted.com with ESMTP id 24kkaj1cdc-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 03 Aug 2016 15:39:32 -0400 Received: from localhost by e24smtp05.br.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 3 Aug 2016 16:39:30 -0300 Received: from d24relay01.br.ibm.com (d24relay01.br.ibm.com [9.8.31.16]) by d24dlp01.br.ibm.com (Postfix) with ESMTP id E0929352006E for ; Wed, 3 Aug 2016 15:39:07 -0400 (EDT) Received: from d24av03.br.ibm.com (d24av03.br.ibm.com [9.8.31.95]) by d24relay01.br.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u73JdR904636828 for ; Wed, 3 Aug 2016 16:39:27 -0300 Received: from d24av03.br.ibm.com (localhost [127.0.0.1]) by d24av03.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u73JdRRA001211 for ; Wed, 3 Aug 2016 16:39:27 -0300 Subject: Re: [PATCH] powerpc: convert 'iommu_alloc failed' messages to dynamic debug To: Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org References: <1465563831-6565-1-git-send-email-mauricfo@linux.vnet.ibm.com> <1465686148.19533.28.camel@kernel.crashing.org> <575EB4DE.9080807@linux.vnet.ibm.com> <1465853216.3022.26.camel@kernel.crashing.org> From: Mauricio Faria de Oliveira Date: Wed, 3 Aug 2016 16:39:27 -0300 MIME-Version: 1.0 In-Reply-To: <1465853216.3022.26.camel@kernel.crashing.org> Content-Type: text/plain; charset=utf-8; format=flowed Message-Id: <57A2486F.6000208@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi Ben, On 06/13/2016 06:26 PM, Benjamin Herrenschmidt wrote: > Another option would be to use a dma_attr for silencing mapping errors > which NVME could use provided it does handle them gracefully ... I recently submitted patches that implement your suggestion [1]. May you please review/comment if they're OK with you? Thanks! [1] https://lists.ozlabs.org/pipermail/linuxppc-dev/2016-August/146850.html -- Mauricio Faria de Oliveira IBM Linux Technology Center