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[2620:137:e000::1:20]) by mx.google.com with ESMTP id qa33-20020a17090786a100b0078d514ace6bsi1988752ejc.282.2022.11.03.11.20.21; Thu, 03 Nov 2022 11:20:46 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231185AbiKCSKH (ORCPT + 98 others); Thu, 3 Nov 2022 14:10:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43430 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230132AbiKCSJU (ORCPT ); Thu, 3 Nov 2022 14:09:20 -0400 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0B77C10B5; Thu, 3 Nov 2022 11:09:20 -0700 (PDT) Received: from fraeml702-chm.china.huawei.com (unknown [172.18.147.201]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4N3BW24vbXz67xV0; Fri, 4 Nov 2022 02:05:18 +0800 (CST) Received: from lhrpeml500005.china.huawei.com (7.191.163.240) by fraeml702-chm.china.huawei.com (10.206.15.51) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2375.31; Thu, 3 Nov 2022 19:09:17 +0100 Received: from localhost (10.202.227.76) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Thu, 3 Nov 2022 18:09:17 +0000 Date: Thu, 3 Nov 2022 18:09:16 +0000 From: Jonathan Cameron To: Davidlohr Bueso CC: Ira Weiny , Bjorn Helgaas , "Dan Williams" , , , , , , , , Bjorn Helgaas , , Christoph Hellwig Subject: Re: [PATCH 1/2] cxl/pci: Add generic MSI-X/MSI irq support Message-ID: <20221103180916.00000bae@Huawei.com> In-Reply-To: <20221103001833.n2gsoflnji3pcsfr@offworld> References: <20221024133633.00000467@huawei.com> <20221025232535.GA579167@bhelgaas> <20221102171524.thsz2kwtirhxn7ee@offworld> <20221103001833.n2gsoflnji3pcsfr@offworld> Organization: Huawei Technologies Research and Development (UK) Ltd. X-Mailer: Claws Mail 4.1.0 (GTK 3.24.33; x86_64-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.202.227.76] X-ClientProxiedBy: lhrpeml500004.china.huawei.com (7.191.163.9) To lhrpeml500005.china.huawei.com (7.191.163.240) X-CFilter-Loop: Reflected X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2 Nov 2022 17:18:33 -0700 Davidlohr Bueso wrote: > On Wed, 02 Nov 2022, Ira Weiny wrote: > > >On Wed, Nov 02, 2022 at 10:15:24AM -0700, Davidlohr Bueso wrote: > >> Most CXL features that can have irqs will normally use only the first 16, > >> with the exception of isolation (cxl 3.0), which per the spec is up to 32. > > > >Dan, Dave, and I were discussing this and we agree. For now the only things > >people are working on are within the first 16 so why not just request 16 as the > >max for now? > > It is a fair compromise, yes. works for me.