Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760601Ab3IDTUK (ORCPT ); Wed, 4 Sep 2013 15:20:10 -0400 Received: from e39.co.us.ibm.com ([32.97.110.160]:39133 "EHLO e39.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760504Ab3IDTUI (ORCPT ); Wed, 4 Sep 2013 15:20:08 -0400 Message-ID: <522787D9.6090807@linux.vnet.ibm.com> Date: Wed, 04 Sep 2013 14:19:53 -0500 From: Brian King User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130329 Thunderbird/17.0.5 MIME-Version: 1.0 To: "Philip J. Kelleher" CC: axboe@kernel.dk, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 2/2] rsxx: Moving pci_map_page to prevent overflow. References: <20130904185935.GF24898@oc6784271780.ibm.com> In-Reply-To: <20130904185935.GF24898@oc6784271780.ibm.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-TM-AS-MML: No X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13090419-9332-0000-0000-0000014DDA0F Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 798 Lines: 25 On 09/04/2013 01:59 PM, Philip J. Kelleher wrote: > From: Philip J Kelleher > > The pci_map_page function has been moved into our > issued workqueue to prevent an us running out of > mappable addresses on non-HWWD PCIe x8 slots. The > maximum amount that can possible be mapped at one > time now is: 255 dmas X 4 dma channels X 4096 Bytes. > > Signed-off-by: Philip J Kelleher Reviewed-by: Brian King -- Brian King Power Linux I/O IBM Linux Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/