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X-IronPort-AV: E=McAfee;i="6200,9189,10302"; a="259970452" X-IronPort-AV: E=Sophos;i="5.90,225,1643702400"; d="scan'208";a="259970452" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Mar 2022 03:23:33 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,225,1643702400"; d="scan'208";a="788360076" Received: from fmsmsx604.amr.corp.intel.com ([10.18.126.84]) by fmsmga006.fm.intel.com with ESMTP; 31 Mar 2022 03:23:33 -0700 Received: from fmsmsx605.amr.corp.intel.com (10.18.126.85) by fmsmsx604.amr.corp.intel.com (10.18.126.84) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.27; Thu, 31 Mar 2022 03:23:33 -0700 Received: from fmsmsx605.amr.corp.intel.com ([10.18.126.85]) by fmsmsx605.amr.corp.intel.com ([10.18.126.85]) with mapi id 15.01.2308.027; Thu, 31 Mar 2022 03:23:33 -0700 From: "Hu, Jiayu" To: Maxime Coquelin , David Marchand , "dev@dpdk.org" CC: "Xia, Chenbo" , "Wang, YuanX" , "Ding, Xuan" , "stable@dpdk.org" , Patrick Fu Subject: RE: [RFC PATCH v2 4/9] vhost: fix async access Thread-Topic: [RFC PATCH v2 4/9] vhost: fix async access Thread-Index: AQHYRD0f+hSOjieHJEiOTMJs5KXPEazZl6KA//+yecA= Date: Thu, 31 Mar 2022 10:23:33 +0000 Message-ID: References: <20220328121758.26632-1-david.marchand@redhat.com> <20220330134956.18927-1-david.marchand@redhat.com> <20220330134956.18927-5-david.marchand@redhat.com> <4c729841-7599-d94b-4104-2a4f78f2e961@redhat.com> In-Reply-To: <4c729841-7599-d94b-4104-2a4f78f2e961@redhat.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-reaction: no-action dlp-version: 11.6.401.20 dlp-product: dlpe-windows x-originating-ip: [10.239.127.36] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org DQoNCj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCj4gRnJvbTogTWF4aW1lIENvcXVlbGlu IDxtYXhpbWUuY29xdWVsaW5AcmVkaGF0LmNvbT4NCj4gU2VudDogVGh1cnNkYXksIE1hcmNoIDMx LCAyMDIyIDQ6MDAgUE0NCj4gVG86IERhdmlkIE1hcmNoYW5kIDxkYXZpZC5tYXJjaGFuZEByZWRo YXQuY29tPjsgZGV2QGRwZGsub3JnDQo+IENjOiBYaWEsIENoZW5ibyA8Y2hlbmJvLnhpYUBpbnRl bC5jb20+OyBIdSwgSmlheXUgPGppYXl1Lmh1QGludGVsLmNvbT47DQo+IFdhbmcsIFl1YW5YIDx5 dWFueC53YW5nQGludGVsLmNvbT47IERpbmcsIFh1YW4gPHh1YW4uZGluZ0BpbnRlbC5jb20+Ow0K PiBzdGFibGVAZHBkay5vcmc7IFBhdHJpY2sgRnUgPHBhdHJpY2suZnVAaW50ZWwuY29tPg0KPiBT dWJqZWN0OiBSZTogW1JGQyBQQVRDSCB2MiA0LzldIHZob3N0OiBmaXggYXN5bmMgYWNjZXNzDQo+ IA0KPiBIaSBKaWF5dSwNCj4gDQo+IE9uIDMvMzAvMjIgMTU6NDksIERhdmlkIE1hcmNoYW5kIHdy b3RlOg0KPiA+IHZxLT5hc3luYyBhY2Nlc3NlcyBtdXN0IGJlIHByb3RlY3RlZCB3aXRoIHZxLT5h Y2Nlc3NfbG9jay4NCj4gPg0KPiA+IEZpeGVzOiBlYjY2NmQyNDA4NWYgKCJ2aG9zdDogZml4IGFz eW5jIHVucmVnaXN0ZXIgZGVhZGxvY2siKQ0KPiA+IEZpeGVzOiAwYzA5MzVjNWY3OTQgKCJ2aG9z dDogYWxsb3cgdG8gY2hlY2sgaW4tZmxpZ2h0IHBhY2tldHMgZm9yDQo+ID4gYXN5bmMgdmhvc3Qi KQ0KPiA+IENjOiBzdGFibGVAZHBkay5vcmcNCj4gPg0KPiA+IFNpZ25lZC1vZmYtYnk6IERhdmlk IE1hcmNoYW5kIDxkYXZpZC5tYXJjaGFuZEByZWRoYXQuY29tPg0KPiA+IC0tLQ0KPiA+ICAgbGli L3Zob3N0L3Zob3N0LmMgfCAyNSArKysrKysrKysrLS0tLS0tLS0tLS0tLS0tDQo+ID4gICAxIGZp bGUgY2hhbmdlZCwgMTAgaW5zZXJ0aW9ucygrKSwgMTUgZGVsZXRpb25zKC0pDQo+IA0KPiBDb3Vs ZCB5b3UgcGxlYXNlIHRlc3QgYW5kIHJldmlldyBiZWxvdyBwYXRjaD8NCj4gV2UgbWF5IHdhbnQg dG8gYXBwbHkgaXQgZWFybHksIGJlZm9yZSB0aGUgYW5ub3RhdGlvbiBzZXJpZXMgaXMgYXBwbGll ZC4NCg0KU3VyZSwgSSB3aWxsIHJldmlldyB0aGVtLg0KDQpUaGFua3MsDQpKaWF5dQ0KPiANCj4g VGhhbmtzIQ0KPiBNYXhpbWUNCj4gDQo+ID4gZGlmZiAtLWdpdCBhL2xpYi92aG9zdC92aG9zdC5j IGIvbGliL3Zob3N0L3Zob3N0LmMgaW5kZXgNCj4gPiAyZjk2YTI4ZGFjLi5hOTNlNDFmMzE0IDEw MDY0NA0KPiA+IC0tLSBhL2xpYi92aG9zdC92aG9zdC5jDQo+ID4gKysrIGIvbGliL3Zob3N0L3Zo b3N0LmMNCj4gPiBAQCAtMTc1MywyNyArMTc1MywyMyBAQCBydGVfdmhvc3RfYXN5bmNfY2hhbm5l bF91bnJlZ2lzdGVyKGludCB2aWQsDQo+IHVpbnQxNl90IHF1ZXVlX2lkKQ0KPiA+ICAgCWlmICh2 cSA9PSBOVUxMKQ0KPiA+ICAgCQlyZXR1cm4gcmV0Ow0KPiA+DQo+ID4gLQlyZXQgPSAwOw0KPiA+ IC0NCj4gPiAtCWlmICghdnEtPmFzeW5jKQ0KPiA+IC0JCXJldHVybiByZXQ7DQo+ID4gLQ0KPiA+ ICAgCWlmICghcnRlX3NwaW5sb2NrX3RyeWxvY2soJnZxLT5hY2Nlc3NfbG9jaykpIHsNCj4gPiAg IAkJVkhPU1RfTE9HX0NPTkZJRyhFUlIsICIoJXMpIGZhaWxlZCB0byB1bnJlZ2lzdGVyIGFzeW5j DQo+IGNoYW5uZWwsIHZpcnRxdWV1ZSBidXN5LlxuIiwNCj4gPiAgIAkJCQlkZXYtPmlmbmFtZSk7 DQo+ID4gLQkJcmV0dXJuIC0xOw0KPiA+ICsJCXJldHVybiByZXQ7DQo+ID4gICAJfQ0KPiA+DQo+ ID4gLQlpZiAodnEtPmFzeW5jLT5wa3RzX2luZmxpZ2h0X24pIHsNCj4gPiArCWlmICghdnEtPmFz eW5jKSB7DQo+ID4gKwkJcmV0ID0gMDsNCj4gPiArCX0gZWxzZSBpZiAodnEtPmFzeW5jLT5wa3Rz X2luZmxpZ2h0X24pIHsNCj4gPiAgIAkJVkhPU1RfTE9HX0NPTkZJRyhFUlIsICIoJXMpIGZhaWxl ZCB0byB1bnJlZ2lzdGVyIGFzeW5jDQo+IGNoYW5uZWwuXG4iLCBkZXYtPmlmbmFtZSk7DQo+ID4g ICAJCVZIT1NUX0xPR19DT05GSUcoRVJSLCAiKCVzKSBpbmZsaWdodCBwYWNrZXRzIG11c3QgYmUN Cj4gY29tcGxldGVkIGJlZm9yZSB1bnJlZ2lzdHJhdGlvbi5cbiIsDQo+ID4gICAJCQlkZXYtPmlm bmFtZSk7DQo+ID4gLQkJcmV0ID0gLTE7DQo+ID4gLQkJZ290byBvdXQ7DQo+ID4gKwl9IGVsc2Ug ew0KPiA+ICsJCXZob3N0X2ZyZWVfYXN5bmNfbWVtKHZxKTsNCj4gPiArCQlyZXQgPSAwOw0KPiA+ ICAgCX0NCj4gPg0KPiA+IC0Jdmhvc3RfZnJlZV9hc3luY19tZW0odnEpOw0KPiA+IC1vdXQ6DQo+ ID4gICAJcnRlX3NwaW5sb2NrX3VubG9jaygmdnEtPmFjY2Vzc19sb2NrKTsNCj4gPg0KPiA+ICAg CXJldHVybiByZXQ7DQo+ID4gQEAgLTE4OTEsOSArMTg4Nyw2IEBAIHJ0ZV92aG9zdF9hc3luY19n ZXRfaW5mbGlnaHQoaW50IHZpZCwgdWludDE2X3QNCj4gcXVldWVfaWQpDQo+ID4gICAJaWYgKHZx ID09IE5VTEwpDQo+ID4gICAJCXJldHVybiByZXQ7DQo+ID4NCj4gPiAtCWlmICghdnEtPmFzeW5j KQ0KPiA+IC0JCXJldHVybiByZXQ7DQo+ID4gLQ0KPiA+ICAgCWlmICghcnRlX3NwaW5sb2NrX3Ry eWxvY2soJnZxLT5hY2Nlc3NfbG9jaykpIHsNCj4gPiAgIAkJVkhPU1RfTE9HX0NPTkZJRyhERUJV RywNCj4gPiAgIAkJCSIoJXMpIGZhaWxlZCB0byBjaGVjayBpbi1mbGlnaHQgcGFja2V0cy4gdmly dHF1ZXVlDQo+IGJ1c3kuXG4iLCBAQA0KPiA+IC0xOTAxLDcgKzE4OTQsOSBAQCBydGVfdmhvc3Rf YXN5bmNfZ2V0X2luZmxpZ2h0KGludCB2aWQsIHVpbnQxNl90DQo+IHF1ZXVlX2lkKQ0KPiA+ICAg CQlyZXR1cm4gcmV0Ow0KPiA+ICAgCX0NCj4gPg0KPiA+IC0JcmV0ID0gdnEtPmFzeW5jLT5wa3Rz X2luZmxpZ2h0X247DQo+ID4gKwlpZiAodnEtPmFzeW5jKQ0KPiA+ICsJCXJldCA9IHZxLT5hc3lu Yy0+cGt0c19pbmZsaWdodF9uOw0KPiA+ICsNCj4gPiAgIAlydGVfc3BpbmxvY2tfdW5sb2NrKCZ2 cS0+YWNjZXNzX2xvY2spOw0KPiA+DQo+ID4gICAJcmV0dXJuIHJldDsNCg0K