From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Wed, 25 Feb 2015 17:09:11 +0100 (CET) Received: from mail-bn1on0099.outbound.protection.outlook.com ([157.56.110.99]:42176 "EHLO na01-bn1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by eddie.linux-mips.org with ESMTP id S27007055AbbBYQJJalW5c (ORCPT ); Wed, 25 Feb 2015 17:09:09 +0100 Received: from dl.caveonetworks.com (64.2.3.194) by CY1PR0701MB1115.namprd07.prod.outlook.com (25.160.145.22) with Microsoft SMTP Server (TLS) id 15.1.93.16; Wed, 25 Feb 2015 16:09:02 +0000 Message-ID: <54EDF39A.1080002@caviumnetworks.com> Date: Wed, 25 Feb 2015 08:08:58 -0800 From: David Daney User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7 MIME-Version: 1.0 To: CC: Subject: Re: octeon disable SWIOTLB References: <20150225144128.GB27513@fifo99.com> In-Reply-To: <20150225144128.GB27513@fifo99.com> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [64.2.3.194] X-ClientProxiedBy: SN1PR07CA0009.namprd07.prod.outlook.com (25.162.170.147) To CY1PR0701MB1115.namprd07.prod.outlook.com (25.160.145.22) Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=David.Daney@caviumnetworks.com; X-Microsoft-Antispam: UriScan:; X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:;SRVR:CY1PR0701MB1115; X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:; X-Exchange-Antispam-Report-CFA-Test: BCL:0;PCL:0;RULEID:(601004)(5005004);SRVR:CY1PR0701MB1115; X-Forefront-PRVS: 049897979A X-Forefront-Antispam-Report: SFV:NSPM;SFS:(10009020)(6009001)(189002)(51704005)(199003)(24454002)(377454003)(479174004)(69596002)(97736003)(36756003)(68736005)(92566002)(64126003)(101416001)(47776003)(65806001)(87976001)(2950100001)(53416004)(77156002)(40100003)(66066001)(2351001)(19580395003)(83506001)(80316001)(46102003)(19580405001)(33656002)(23756003)(50466002)(50986999)(64706001)(65956001)(110136001)(122386002)(54356999)(65816999)(105586002)(76176999)(87266999)(62966003)(81156004)(42186005)(106356001)(59896002);DIR:OUT;SFP:1101;SCL:1;SRVR:CY1PR0701MB1115;H:dl.caveonetworks.com;FPR:;SPF:None;PTR:InfoNoRecords;MX:1;A:1;LANG:en; Received-SPF: None (protection.outlook.com: caviumnetworks.com does not designate permitted sender hosts) X-Exchange-Antispam-Report-CFA-Test: BCL:0;PCL:0;RULEID:;SRVR:CY1PR0701MB1115; X-OriginatorOrg: caviumnetworks.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Feb 2015 16:09:02.3971 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY1PR0701MB1115 Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 45973 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: ddaney@caviumnetworks.com Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips On 02/25/2015 06:41 AM, dwalker@fifo99.com wrote: > Hi, > > Back in 2010 you made CONFIG_SWIOTLB mandatory (commit b93b2a). This prevents the Continuous > memory allocation from being enabled. Would you be willing to accept a patch which allows > this option to be disabled if CONFIG_EXPERT is set? Ralf has the final say, so it really is not up to me. That said, any patch that improves the flexibility of the kernel without adversely effecting reliability and correctness would be welcome. > I suspect some users of Octeon can > review their hardware to be sure it's save to do. > > Daniel > > From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-bn1on0099.outbound.protection.outlook.com ([157.56.110.99]:42176 "EHLO na01-bn1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by eddie.linux-mips.org with ESMTP id S27007055AbbBYQJJalW5c (ORCPT ); Wed, 25 Feb 2015 17:09:09 +0100 Message-ID: <54EDF39A.1080002@caviumnetworks.com> Date: Wed, 25 Feb 2015 08:08:58 -0800 From: David Daney MIME-Version: 1.0 Subject: Re: octeon disable SWIOTLB References: <20150225144128.GB27513@fifo99.com> In-Reply-To: <20150225144128.GB27513@fifo99.com> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit Return-Path: Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-subscribe: List-owner: List-post: List-archive: To: dwalker@fifo99.com Cc: linux-mips@linux-mips.org Message-ID: <20150225160858.8QI9DcP1mD2NcRitShMFk2XhkG0IrYIVw-qZnzSJw90@z> On 02/25/2015 06:41 AM, dwalker@fifo99.com wrote: > Hi, > > Back in 2010 you made CONFIG_SWIOTLB mandatory (commit b93b2a). This prevents the Continuous > memory allocation from being enabled. Would you be willing to accept a patch which allows > this option to be disabled if CONFIG_EXPERT is set? Ralf has the final say, so it really is not up to me. That said, any patch that improves the flexibility of the kernel without adversely effecting reliability and correctness would be welcome. > I suspect some users of Octeon can > review their hardware to be sure it's save to do. > > Daniel > >