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Miller" , Greg Kroah-Hartman Subject: Re: [PATCH mlx5-next v7 0/4] Dynamically assign MSI-X vectors count Message-ID: <20210326173128.GQ2356281@nvidia.com> References: <20210326170831.GA890834@bjorn-Precision-5520> <20210326172900.GA4611@redsun51.ssa.fujisawa.hgst.com> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210326172900.GA4611@redsun51.ssa.fujisawa.hgst.com> X-Originating-IP: [142.162.115.133] X-ClientProxiedBy: MN2PR05CA0031.namprd05.prod.outlook.com (2603:10b6:208:c0::44) To DM6PR12MB3834.namprd12.prod.outlook.com (2603:10b6:5:14a::12) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from mlx.ziepe.ca (142.162.115.133) by MN2PR05CA0031.namprd05.prod.outlook.com (2603:10b6:208:c0::44) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3999.16 via Frontend Transport; Fri, 26 Mar 2021 17:31:29 +0000 Received: from jgg by mlx with local (Exim 4.94) (envelope-from ) id 1lPqIy-003flA-2R; 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X-MS-Exchange-AntiSpam-MessageData: =?us-ascii?Q?Om2D2OadXy+7De/63UH/rK1x5D8FHfp9QCONUc5wuLAZDod4nMQ1z2YjHJTv?= =?us-ascii?Q?AOiCvUMnrMr3U3IG5c+NQ6tAo7cRxz7DtJc303DDfxJxXVfx3QsRhxqJwcXf?= =?us-ascii?Q?HrF7F7Za7RlORxtZAawGys/fMfU53KL5uVABtF4jlVFmboYL75CwE4iheOMR?= =?us-ascii?Q?6yXk8ORkssisAbnntug1y7R9JN4luX7gWMe79kw9E18AF4LNf2XqgbgEoft8?= =?us-ascii?Q?SHwIapuDx5V+d7ZZtF947BPQGYG8u5o/fWRSjyXvpH9AuytlBUS7Pq98FZZK?= =?us-ascii?Q?QL7fbbc4Mg49eetw3J6h61ImWYAGvOUAkf4zKQ9LCp0NAwzIxfRFfnuMhM8e?= =?us-ascii?Q?Zc3FxsECgFZWIcDCMiCzsOPojpz5QkV7+eldUts95rg1qPPzD8/DC0iu8Muh?= =?us-ascii?Q?mqK+ZjYLB34BJILqWafulZl2VMYez833nN26dTSPCBx2NzTLzh3+he2MgsLU?= =?us-ascii?Q?h4bqN6w17VGRzoTkut2x56KjZouGelgufTQypYfxdP1CKICcyK3/L5dGxR3E?= =?us-ascii?Q?mec8rGd+J6KTLlOB2XBhOll3oC7c2B+f0SZeWgNfgPvPgWqENprbBjJUAaVC?= =?us-ascii?Q?wOEX5rshNpBgOt4I0I/mQHBVl42A1ymAHuBD/SDmLH8XGaMtuBp2fykqmOoT?= =?us-ascii?Q?VFHz5iMjSP1dHcXeuuL9eKHdyfrqDzEHBdS0XdmJJPzC7iYEVLJCVIhg4alR?= =?us-ascii?Q?i9mTmGqj/lq6Vd8BE4HaZq06b7EzdcwMrN77JJXXqBBNDqqkSsIAVHcbdiND?= =?us-ascii?Q?++JQtb7woCTyytd7jNI668LXOT4J4DOitGuC8PsrV9ibc0oRyqxUVtYPyubG?= =?us-ascii?Q?CFEWCoVn8sr5u5E8E7Bya+z+MFJEL0jG5KgtiPLGKwVdoJEj+TDVYOtJH6+w?= =?us-ascii?Q?5460v84oE6/Te8k9jrThSYWr9D4MXUw5gQjA8jcGkPkjVrzPj0kk+zRfezxQ?= =?us-ascii?Q?YFZdjD/4SM70HHs3k5zpPw4pArAvSuDrUN7wB2pBAC7U06iIwvsaul65lwOU?= =?us-ascii?Q?y0Os2S7FoLAHZbPKfsE/fYCEtlLlwjsu9hWcHYdlILPEsDnxp5MlUyI+DNbx?= =?us-ascii?Q?swl40g5hWkE2QlFb0x9FjqC7fGQ2+6BNGAw2bzrrwV8Lvq0bnvRBhC+JIrAB?= =?us-ascii?Q?oCQlNn2XTj8IoN4mY9KZKbE3m/5Dpd6Uw5po+zUNKTrdyQ/Ow9EA7v2IYfEB?= =?us-ascii?Q?dJ65KEZK0k++zYPwqsy/NJOpfMvQhz+WlOgGHVgvU7mjsNxFC3gV7sCXR92w?= =?us-ascii?Q?Y1dc3fd/JKFtH9PtTblNsAIU5r5W02WpUUOFttDvfncaePFntQmIpDspmWb3?= =?us-ascii?Q?iV/7Xbwtbh48TTJUnnW1Yx8LzocBZ2oZ2i3uUpanwanCAw=3D=3D?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 1cdebe43-064b-4be2-50a0-08d8f07cfd97 X-MS-Exchange-CrossTenant-AuthSource: DM6PR12MB3834.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Mar 2021 17:31:29.4937 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 85EvXmUaccbbnP0lEZNL/JGu6QLBpfnv5DikWwQQQEXNQzCxlvU8Y9+KJm8NXN5E X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4299 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On Sat, Mar 27, 2021 at 02:29:00AM +0900, Keith Busch wrote: > On Fri, Mar 26, 2021 at 12:08:31PM -0500, Bjorn Helgaas wrote: > > I also want to resurrect your idea of associating > > "sriov_vf_msix_count" with the PF instead of the VF. I really like > > that idea, and it better reflects the way both mlx5 and NVMe work. > > That is a better match for nvme: we can assign resources to VFs with > the PF's "VF Enable" set to '0', so configuring VFs without requiring > them be enumerated in sysfs is a plus. If the VF is not in sysfs already in the normal place, why would it be in the special configuration directory? Do you want the driver to somehow provide the configuration directory content? I'm confused what you mean As I said to Alex configuring things before they even get plugged in sounds like the right direction.. Jason