From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Gunthorpe Subject: Re: [PATCH 3/5] vDPA: introduce vDPA bus Date: Fri, 17 Jan 2020 13:54:42 +0000 Message-ID: <20200117135435.GU20978@mellanox.com> References: <20200116124231.20253-1-jasowang@redhat.com> <20200116124231.20253-4-jasowang@redhat.com> <20200116152209.GH20978@mellanox.com> <03cfbcc2-fef0-c9d8-0b08-798b2a293b8c@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <03cfbcc2-fef0-c9d8-0b08-798b2a293b8c@redhat.com> Content-Language: en-US Content-ID: <6C36226D304AFC44B0802650322CDA8F@eurprd05.prod.outlook.com> Sender: linux-kernel-owner@vger.kernel.org To: Jason Wang Cc: "mst@redhat.com" , "linux-kernel@vger.kernel.org" , "kvm@vger.kernel.org" , "virtualization@lists.linux-foundation.org" , "netdev@vger.kernel.org" , "tiwei.bie@intel.com" , "maxime.coquelin@redhat.com" , "cunming.liang@intel.com" , "zhihong.wang@intel.com" , "rob.miller@broadcom.com" , "xiao.w.wang@intel.com" , "haotian.wang@sifive.com" , "lingshan.zhu@intel.com" , "eperezma@redhat.com" , "lulu@redhat.com" List-Id: virtualization@lists.linuxfoundation.org T24gRnJpLCBKYW4gMTcsIDIwMjAgYXQgMTE6MDM6MTJBTSArMDgwMCwgSmFzb24gV2FuZyB3cm90 ZToNCj4gDQo+IE9uIDIwMjAvMS8xNiDkuIvljYgxMToyMiwgSmFzb24gR3VudGhvcnBlIHdyb3Rl Og0KPiA+IE9uIFRodSwgSmFuIDE2LCAyMDIwIGF0IDA4OjQyOjI5UE0gKzA4MDAsIEphc29uIFdh bmcgd3JvdGU6DQo+ID4gPiB2RFBBIGRldmljZSBpcyBhIGRldmljZSB0aGF0IHVzZXMgYSBkYXRh cGF0aCB3aGljaCBjb21wbGllcyB3aXRoIHRoZQ0KPiA+ID4gdmlydGlvIHNwZWNpZmljYXRpb25z IHdpdGggdmVuZG9yIHNwZWNpZmljIGNvbnRyb2wgcGF0aC4gdkRQQSBkZXZpY2VzDQo+ID4gPiBj YW4gYmUgYm90aCBwaHlzaWNhbGx5IGxvY2F0ZWQgb24gdGhlIGhhcmR3YXJlIG9yIGVtdWxhdGVk IGJ5DQo+ID4gPiBzb2Z0d2FyZS4gdkRQQSBoYXJkd2FyZSBkZXZpY2VzIGFyZSB1c3VhbGx5IGlt cGxlbWVudGVkIHRocm91Z2ggUENJRQ0KPiA+ID4gd2l0aCB0aGUgZm9sbG93aW5nIHR5cGVzOg0K PiA+ID4gDQo+ID4gPiAtIFBGIChQaHlzaWNhbCBGdW5jdGlvbikgLSBBIHNpbmdsZSBQaHlzaWNh bCBGdW5jdGlvbg0KPiA+ID4gLSBWRiAoVmlydHVhbCBGdW5jdGlvbikgLSBEZXZpY2UgdGhhdCBz dXBwb3J0cyBzaW5nbGUgcm9vdCBJL08NCj4gPiA+ICAgIHZpcnR1YWxpemF0aW9uIChTUi1JT1Yp LiBJdHMgVmlydHVhbCBGdW5jdGlvbiAoVkYpIHJlcHJlc2VudHMgYQ0KPiA+ID4gICAgdmlydHVh bGl6ZWQgaW5zdGFuY2Ugb2YgdGhlIGRldmljZSB0aGF0IGNhbiBiZSBhc3NpZ25lZCB0byBkaWZm ZXJlbnQNCj4gPiA+ICAgIHBhcnRpdGlvbnMNCj4gPiA+IC0gVkRFViAoVmlydHVhbCBEZXZpY2Up IC0gV2l0aCB0ZWNobm9sb2dpZXMgc3VjaCBhcyBJbnRlbCBTY2FsYWJsZQ0KPiA+ID4gICAgSU9W LCBhIHZpcnR1YWwgZGV2aWNlIGNvbXBvc2VkIGJ5IGhvc3QgT1MgdXRpbGl6aW5nIG9uZSBvciBt b3JlDQo+ID4gPiAgICBBRElzLg0KPiA+ID4gLSBTRiAoU3ViIGZ1bmN0aW9uKSAtIFZlbmRvciBz cGVjaWZpYyBpbnRlcmZhY2UgdG8gc2xpY2UgdGhlIFBoeXNpY2FsDQo+ID4gPiAgICBGdW5jdGlv biB0byBtdWx0aXBsZSBzdWIgZnVuY3Rpb25zIHRoYXQgY2FuIGJlIGFzc2lnbmVkIHRvIGRpZmZl cmVudA0KPiA+ID4gICAgcGFydGl0aW9ucyBhcyB2aXJ0dWFsIGRldmljZXMuDQo+ID4gSSByZWFs bHkgaG9wZSB3ZSBkb24ndCBlbmQgdXAgd2l0aCB0d28gZGlmZmVyZW50IHdheXMgdG8gc3BlbGwg dGhpcw0KPiA+IHNhbWUgdGhpbmcuDQo+IA0KPiBJIHRoaW5rIHlvdSBtZWFudCBBREkgdnMgU0Yu IEl0IGxvb2tzIHRvIG1lIHRoYXQgQURJIGlzIGxpbWl0ZWQgdG8gdGhlIHNjb3BlDQo+IG9mIHNj YWxhYmxlIElPViBidXQgU0Ygbm90Lg0KDQpJIHRoaW5rIGlmIG9uZSBsb29rcyBjYXJlZnVsbHkg eW91J2QgZmluZCB0aGF0IFNGIGFuZCBBREkgYXJlIHVzaW5nDQp2ZXJ5IHNpbWlsYXIgdGVjaGlu aXF1ZXMuIEZvciBpbnN0YW5jZSB3ZSdkIGFsc28gbGlrZSB0byB1c2UgdGhlIGNvZGUNCnJlb3Jn IG9mIHRoZSBNU0lYIHZlY3RvciBzZXR1cCB3aXRoIFNGcyB0aGF0IEludGVsIGlzIGNhbGxpbmcg SU1TLg0KDQpSZWFsbHkgU0lPViBpcyBzaW1wbHkgYSBidW5kbGUgb2YgcHJlLWV4aXN0aW5nIHN0 dWZmIHVuZGVyIGEgdGlkeQ0KbmFtZSwgd2hhdGV2ZXIgY29kZSBza2VsZXRvbiB3ZSBjb21lIHVw IHdpdGggZm9yIFNGcyBzaG91bGQgYmUgcmUtdXNlZA0KZm9yIEFESS4NCg0KPiA+IFNob3VsZG4n dCB0aGVyZSBiZSBhIGRldmljZS9kcml2ZXIgbWF0Y2hpbmcgcHJvY2VzcyBvZiBzb21lIGtpbmQ/ DQo+IA0KPiANCj4gVGhlIHF1ZXN0aW9uIGlzIHdoYXQgZG8gd2Ugd2FudCBkbyBtYXRjaCBoZXJl Lg0KPiANCj4gMSkgInZpcnRpbyIgdnMgInZob3N0IiwgSSBpbXBsZW1lbnRlZCBtYXRjaGluZyBt ZXRob2QgZm9yIHRoaXMgaW4gbWRldg0KPiBzZXJpZXMsIGJ1dCBpdCBsb29rcyB1bm5lY2Vzc2Fy eSBmb3IgdkRQQSBkZXZpY2UgZHJpdmVyIHRvIGtub3cgYWJvdXQgdGhpcy4NCj4gQW55d2F5IHdl IGNhbiB1c2Ugc3lzZnMgZHJpdmVyIGJpbmQvdW5iaW5kIHRvIHN3aXRjaCBkcml2ZXJzDQo+IDIp IHZpcnRpbyBkZXZpY2UgaWQgYW5kIHZlbmRvciBpZC4gSSdtIG5vdCBzdXJlIHdlIG5lZWQgdGhp cyBjb25zaWRlciB0aGUNCj4gdHdvIGRyaXZlcnMgc28gZmFyICh2aXJ0aW8vdmhvc3QpIGFyZSBh bGwgYnVzIGRyaXZlcnMuDQoNCkFzIHdlIHNlZW0gdG8gYmUgY29udGVtcGxhdGluZyBzb21lIGR5 bmFtaWMgY3JlYXRpb24gb2YgdmRwYSBkZXZpY2VzIEkNCnRoaW5rIHVwb24gY3JlYXRpb24gdGlt ZSBpdCBzaG91bGQgYmUgc3BlY2lmaWVkIHdoYXQgbW9kZSB0aGV5IHNob3VsZA0KcnVuIGl0IGFu ZCB0aGVuIGFsbCBkcml2ZXIgYmluZGluZyBhbmQgYXV0b2xvYWRpbmcgc2hvdWxkIGhhcHBlbg0K YXV0b21hdGljYWxseS4gVGVsbGluZyB0aGUgdXNlciB0byBiaW5kL3VuYmluZCBpcyBhIHZlcnkg cG9vcg0KZXhwZXJpZW5jZS4NCg0KSmFzb24NCg==