From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 74190C433EF for ; Thu, 10 Mar 2022 03:16:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239169AbiCJDRO (ORCPT ); Wed, 9 Mar 2022 22:17:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43648 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238404AbiCJDRN (ORCPT ); Wed, 9 Mar 2022 22:17:13 -0500 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D09D213CD3; Wed, 9 Mar 2022 19:16:12 -0800 (PST) Received: from dggpeml500023.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4KDZ1M6RllzdZnM; Thu, 10 Mar 2022 11:14:47 +0800 (CST) Received: from dggpeml100025.china.huawei.com (7.185.36.37) by dggpeml500023.china.huawei.com (7.185.36.114) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Thu, 10 Mar 2022 11:16:10 +0800 Received: from dggpeml100016.china.huawei.com (7.185.36.216) by dggpeml100025.china.huawei.com (7.185.36.37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Thu, 10 Mar 2022 11:16:10 +0800 Received: from dggpeml100016.china.huawei.com ([7.185.36.216]) by dggpeml100016.china.huawei.com ([7.185.36.216]) with mapi id 15.01.2308.021; Thu, 10 Mar 2022 11:16:10 +0800 From: "Longpeng (Mike, Cloud Infrastructure Service Product Dept.)" To: Jason Wang , "mst@redhat.com" , "sgarzare@redhat.com" , "stefanha@redhat.com" CC: "virtualization@lists.linux-foundation.org" , "kvm@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "netdev@vger.kernel.org" , "Gonglei (Arei)" , Yechuan , Huangzhichao Subject: RE: [RFC 2/3] vdpa: support exposing the count of vqs to userspace Thread-Topic: [RFC 2/3] vdpa: support exposing the count of vqs to userspace Thread-Index: AQHYC4S7IoB0Irjpnk2WF3yFNTfs4qxnk/AAgFCtsGA= Date: Thu, 10 Mar 2022 03:16:10 +0000 Message-ID: <4e1870fed35f487b8cc2a5d112e7c41b@huawei.com> References: <20220117092921.1573-1-longpeng2@huawei.com> <20220117092921.1573-3-longpeng2@huawei.com> <1a26d7b3-1020-50c5-f0a3-ebc645cdcddf@redhat.com> In-Reply-To: <1a26d7b3-1020-50c5-f0a3-ebc645cdcddf@redhat.com> Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.174.148.223] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org SGkgSmFzb24sDQoNCj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCj4gRnJvbTogSmFzb24g V2FuZyBbbWFpbHRvOmphc293YW5nQHJlZGhhdC5jb21dDQo+IFNlbnQ6IFR1ZXNkYXksIEphbnVh cnkgMTgsIDIwMjIgMTE6MDggQU0NCj4gVG86IExvbmdwZW5nIChNaWtlLCBDbG91ZCBJbmZyYXN0 cnVjdHVyZSBTZXJ2aWNlIFByb2R1Y3QgRGVwdC4pDQo+IDxsb25ncGVuZzJAaHVhd2VpLmNvbT47 IG1zdEByZWRoYXQuY29tOyBzZ2FyemFyZUByZWRoYXQuY29tOw0KPiBzdGVmYW5oYUByZWRoYXQu Y29tDQo+IENjOiB2aXJ0dWFsaXphdGlvbkBsaXN0cy5saW51eC1mb3VuZGF0aW9uLm9yZzsga3Zt QHZnZXIua2VybmVsLm9yZzsNCj4gbGludXgta2VybmVsQHZnZXIua2VybmVsLm9yZzsgbmV0ZGV2 QHZnZXIua2VybmVsLm9yZzsgR29uZ2xlaSAoQXJlaSkNCj4gPGFyZWkuZ29uZ2xlaUBodWF3ZWku Y29tPjsgWWVjaHVhbiA8eWVjaHVhbkBodWF3ZWkuY29tPjsgSHVhbmd6aGljaGFvDQo+IDxodWFu Z3poaWNoYW9AaHVhd2VpLmNvbT4NCj4gU3ViamVjdDogUmU6IFtSRkMgMi8zXSB2ZHBhOiBzdXBw b3J0IGV4cG9zaW5nIHRoZSBjb3VudCBvZiB2cXMgdG8gdXNlcnNwYWNlDQo+IA0KPiANCj4g5Zyo IDIwMjIvMS8xNyDkuIvljYg1OjI5LCBMb25ncGVuZyhNaWtlKSDlhpnpgZM6DQo+ID4gRnJvbTog TG9uZ3BlbmcgPGxvbmdwZW5nMkBodWF3ZWkuY29tPg0KPiA+DQo+ID4gLSBHRVRfVlFTX0NPVU5U OiB0aGUgY291bnQgb2YgdmlydHF1ZXVlcyB0aGF0IGV4cG9zZWQNCj4gPg0KPiA+IFNpZ25lZC1v ZmYtYnk6IExvbmdwZW5nIDxsb25ncGVuZzJAaHVhd2VpLmNvbT4NCj4gPiAtLS0NCj4gPiAgIGRy aXZlcnMvdmhvc3QvdmRwYS5jICAgICAgIHwgMTMgKysrKysrKysrKysrKw0KPiA+ICAgaW5jbHVk ZS91YXBpL2xpbnV4L3Zob3N0LmggfCAgMyArKysNCj4gPiAgIDIgZmlsZXMgY2hhbmdlZCwgMTYg aW5zZXJ0aW9ucygrKQ0KPiA+DQo+ID4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvdmhvc3QvdmRwYS5j IGIvZHJpdmVycy92aG9zdC92ZHBhLmMNCj4gPiBpbmRleCAxZWVhMTRhNGVhNTYuLmMxMDc0Mjc4 ZmM2YiAxMDA2NDQNCj4gPiAtLS0gYS9kcml2ZXJzL3Zob3N0L3ZkcGEuYw0KPiA+ICsrKyBiL2Ry aXZlcnMvdmhvc3QvdmRwYS5jDQo+ID4gQEAgLTM2OSw2ICszNjksMTYgQEAgc3RhdGljIGxvbmcg dmhvc3RfdmRwYV9nZXRfY29uZmlnX3NpemUoc3RydWN0IHZob3N0X3ZkcGENCj4gKnYsIHUzMiBf X3VzZXIgKmFyZ3ApDQo+ID4gICAJcmV0dXJuIDA7DQo+ID4gICB9DQo+ID4NCj4gPiArc3RhdGlj IGxvbmcgdmhvc3RfdmRwYV9nZXRfdnFzX2NvdW50KHN0cnVjdCB2aG9zdF92ZHBhICp2LCB1MzIg X191c2VyICphcmdwKQ0KPiA+ICt7DQo+ID4gKwlzdHJ1Y3QgdmRwYV9kZXZpY2UgKnZkcGEgPSB2 LT52ZHBhOw0KPiANCj4gDQo+IFdoaWxlIGF0IGl0LCBJIHRoaW5rIGl0J3MgYmV0dGVyIHRvIGNo YW5nZSB2ZHBhLT5udnFzIHRvIHVzZSB1MzI/DQo+IA0KDQpzdHJ1Y3Qgdmhvc3RfdmRwYSB7DQog ICAgLi4uDQoJaW50IG52cXM7DQogICAgLi4uDQp9Ow0KDQpzdHJ1Y3QgdmRwYV9kZXZpY2Ugew0K ICAgIC4uLg0KCWludCBudnFzOw0KICAgIC4uLg0KfTsNCg0KSSB0aGluayB3ZSBzaG91bGQgY2hh bmdlIGJvdGggdG8gdTMyPw0KDQoNCj4gVGhhbmtzDQo+IA0KPiANCj4gPiArDQo+ID4gKwlpZiAo Y29weV90b191c2VyKGFyZ3AsICZ2ZHBhLT5udnFzLCBzaXplb2YodmRwYS0+bnZxcykpKQ0KPiA+ ICsJCXJldHVybiAtRUZBVUxUOw0KPiA+ICsNCj4gPiArCXJldHVybiAwOw0KPiA+ICt9DQo+ID4g Kw0KPiA+ICAgc3RhdGljIGxvbmcgdmhvc3RfdmRwYV92cmluZ19pb2N0bChzdHJ1Y3Qgdmhvc3Rf dmRwYSAqdiwgdW5zaWduZWQgaW50IGNtZCwNCj4gPiAgIAkJCQkgICB2b2lkIF9fdXNlciAqYXJn cCkNCj4gPiAgIHsNCj4gPiBAQCAtNTA5LDYgKzUxOSw5IEBAIHN0YXRpYyBsb25nIHZob3N0X3Zk cGFfdW5sb2NrZWRfaW9jdGwoc3RydWN0IGZpbGUgKmZpbGVwLA0KPiA+ICAgCWNhc2UgVkhPU1Rf VkRQQV9HRVRfQ09ORklHX1NJWkU6DQo+ID4gICAJCXIgPSB2aG9zdF92ZHBhX2dldF9jb25maWdf c2l6ZSh2LCBhcmdwKTsNCj4gPiAgIAkJYnJlYWs7DQo+ID4gKwljYXNlIFZIT1NUX1ZEUEFfR0VU X1ZRU19DT1VOVDoNCj4gPiArCQlyID0gdmhvc3RfdmRwYV9nZXRfdnFzX2NvdW50KHYsIGFyZ3Ap Ow0KPiA+ICsJCWJyZWFrOw0KPiA+ICAgCWRlZmF1bHQ6DQo+ID4gICAJCXIgPSB2aG9zdF9kZXZf aW9jdGwoJnYtPnZkZXYsIGNtZCwgYXJncCk7DQo+ID4gICAJCWlmIChyID09IC1FTk9JT0NUTENN RCkNCj4gPiBkaWZmIC0tZ2l0IGEvaW5jbHVkZS91YXBpL2xpbnV4L3Zob3N0LmggYi9pbmNsdWRl L3VhcGkvbGludXgvdmhvc3QuaA0KPiA+IGluZGV4IGJjNzRlOTVhMjczYS4uNWQ5OWU3YzI0MmEy IDEwMDY0NA0KPiA+IC0tLSBhL2luY2x1ZGUvdWFwaS9saW51eC92aG9zdC5oDQo+ID4gKysrIGIv aW5jbHVkZS91YXBpL2xpbnV4L3Zob3N0LmgNCj4gPiBAQCAtMTU0LDQgKzE1NCw3IEBADQo+ID4g ICAvKiBHZXQgdGhlIGNvbmZpZyBzaXplICovDQo+ID4gICAjZGVmaW5lIFZIT1NUX1ZEUEFfR0VU X0NPTkZJR19TSVpFCV9JT1IoVkhPU1RfVklSVElPLCAweDc5LCBfX3UzMikNCj4gPg0KPiA+ICsv KiBHZXQgdGhlIGNvdW50IG9mIGFsbCB2aXJ0cXVldWVzICovDQo+ID4gKyNkZWZpbmUgVkhPU1Rf VkRQQV9HRVRfVlFTX0NPVU5UCV9JT1IoVkhPU1RfVklSVElPLCAweDgwLCBfX3UzMikNCj4gPiAr DQo+ID4gICAjZW5kaWYNCg0K