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Wed, 3 Feb 2021 02:26:06 +0000 From: "Xia, Chenbo" To: Wan Junjie , Maxime Coquelin CC: "dev@dpdk.org" , Peng He , Zhihong Wang Thread-Topic: [PATCH v2] vhost: avoid iotlb mempool allocation while IOMMU disabled Thread-Index: AQHW+T8NcKun/JqPn0uHJGmj0JzFkapFtRzQ Date: Wed, 3 Feb 2021 02:26:06 +0000 Message-ID: References: <20210129163909.35970-1-wanjunjie@bytedance.com> <20210202083845.79726-1-wanjunjie@bytedance.com> In-Reply-To: <20210202083845.79726-1-wanjunjie@bytedance.com> Accept-Language: en-US, zh-CN Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: bytedance.com; dkim=none (message not signed) header.d=none;bytedance.com; dmarc=none action=none header.from=intel.com; x-originating-ip: [192.55.46.36] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: c7bc2a6a-db85-4e01-e2b6-08d8c7eb0fa8 x-ms-traffictypediagnostic: MN2PR11MB3568: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:324; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; 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charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MN2PR11MB4063.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: c7bc2a6a-db85-4e01-e2b6-08d8c7eb0fa8 X-MS-Exchange-CrossTenant-originalarrivaltime: 03 Feb 2021 02:26:06.5974 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: aMqMKywz92v/KEjOYfYMuqtKwCV4XlgC3xPdfqB51xsLQSiuhIMbdnSYZ4+fMzJh93Sm9KRZFcNQHcTaWj6qpQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR11MB3568 X-OriginatorOrg: intel.com Subject: Re: [dpdk-dev] [PATCH v2] vhost: avoid iotlb mempool allocation while IOMMU disabled 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 Sender: "dev" PiAtLS0tLU9yaWdpbmFsIE1lc3NhZ2UtLS0tLQ0KPiBGcm9tOiBXYW4gSnVuamllIDx3YW5qdW5q aWVAYnl0ZWRhbmNlLmNvbT4NCj4gU2VudDogVHVlc2RheSwgRmVicnVhcnkgMiwgMjAyMSA0OjM5 IFBNDQo+IFRvOiBYaWEsIENoZW5ibyA8Y2hlbmJvLnhpYUBpbnRlbC5jb20+OyBNYXhpbWUgQ29x dWVsaW4NCj4gPG1heGltZS5jb3F1ZWxpbkByZWRoYXQuY29tPg0KPiBDYzogZGV2QGRwZGsub3Jn OyBXYW4gSnVuamllIDx3YW5qdW5qaWVAYnl0ZWRhbmNlLmNvbT47IFBlbmcgSGUNCj4gPGhlcGVu Zy4wMzIwQGJ5dGVkYW5jZS5jb20+OyBaaGlob25nIFdhbmcgPHdhbmd6aGlob25nLnd6aEBieXRl ZGFuY2UuY29tPg0KPiBTdWJqZWN0OiBbUEFUQ0ggdjJdIHZob3N0OiBhdm9pZCBpb3RsYiBtZW1w b29sIGFsbG9jYXRpb24gd2hpbGUgSU9NTVUgZGlzYWJsZWQNCj4gDQo+IElmIHZob3N0IGRldmlj ZSdzIElPTU1VIGZlYXR1cmUgaXMgZGlzYWJsZWQsIGlvdGxiIG1lbXBvb2wgYWxsb2NhdGlvbg0K PiBpcyB1bm5lY2Vzc2FyeS4NCj4gDQo+IFJlcG9ydGVkLWJ5OiBQZW5nIEhlIDxoZXBlbmcuMDMy MEBieXRlZGFuY2UuY29tPg0KPiBTaWduZWQtb2ZmLWJ5OiBXYW4gSnVuamllIDx3YW5qdW5qaWVA Ynl0ZWRhbmNlLmNvbT4NCj4gUmV2aWV3ZWQtYnk6IFpoaWhvbmcgV2FuZyA8d2FuZ3poaWhvbmcu d3poQGJ5dGVkYW5jZS5jb20+DQo+IC0tLQ0KPiAgbGliL2xpYnJ0ZV92aG9zdC92aG9zdC5jICAg ICAgfCA0ICsrLS0NCj4gIGxpYi9saWJydGVfdmhvc3Qvdmhvc3RfdXNlci5jIHwgNiArKysrKy0N Cj4gIDIgZmlsZXMgY2hhbmdlZCwgNyBpbnNlcnRpb25zKCspLCAzIGRlbGV0aW9ucygtKQ0KPiAN Cj4gZGlmZiAtLWdpdCBhL2xpYi9saWJydGVfdmhvc3Qvdmhvc3QuYyBiL2xpYi9saWJydGVfdmhv c3Qvdmhvc3QuYw0KPiBpbmRleCBiODNjZjYzOWUuLmU1MzQxYWI5OCAxMDA2NDQNCj4gLS0tIGEv bGliL2xpYnJ0ZV92aG9zdC92aG9zdC5jDQo+ICsrKyBiL2xpYi9saWJydGVfdmhvc3Qvdmhvc3Qu Yw0KPiBAQCAtMzUyLDcgKzM1Miw4IEBAIGZyZWVfdnEoc3RydWN0IHZpcnRpb19uZXQgKmRldiwg c3RydWN0IHZob3N0X3ZpcnRxdWV1ZSAqdnEpDQo+ICAJCXZob3N0X2ZyZWVfYXN5bmNfbWVtKHZx KTsNCj4gIAl9DQo+ICAJcnRlX2ZyZWUodnEtPmJhdGNoX2NvcHlfZWxlbXMpOw0KPiAtCXJ0ZV9t ZW1wb29sX2ZyZWUodnEtPmlvdGxiX3Bvb2wpOw0KPiArCWlmICh2cS0+aW90bGJfcG9vbCkNCj4g KwkJcnRlX21lbXBvb2xfZnJlZSh2cS0+aW90bGJfcG9vbCk7DQo+ICAJcnRlX2ZyZWUodnEpOw0K PiAgfQ0KPiANCj4gQEAgLTU1Niw3ICs1NTcsNiBAQCBpbml0X3ZyaW5nX3F1ZXVlKHN0cnVjdCB2 aXJ0aW9fbmV0ICpkZXYsIHVpbnQzMl90DQo+IHZyaW5nX2lkeCkNCj4gIAl2cS0+Y2FsbGZkID0g VklSVElPX1VOSU5JVElBTElaRURfRVZFTlRGRDsNCj4gIAl2cS0+bm90aWZfZW5hYmxlID0gVklS VElPX1VOSU5JVElBTElaRURfTk9USUY7DQo+IA0KPiAtCXZob3N0X3VzZXJfaW90bGJfaW5pdChk ZXYsIHZyaW5nX2lkeCk7DQo+ICAJLyogQmFja2VuZHMgYXJlIHNldCB0byAtMSBpbmRpY2F0aW5n IGFuIGluYWN0aXZlIGRldmljZS4gKi8NCj4gIAl2cS0+YmFja2VuZCA9IC0xOw0KPiAgfQ0KPiBk aWZmIC0tZ2l0IGEvbGliL2xpYnJ0ZV92aG9zdC92aG9zdF91c2VyLmMgYi9saWIvbGlicnRlX3Zo b3N0L3Zob3N0X3VzZXIuYw0KPiBpbmRleCA0NWM4YWMwOWQuLjgxY2JiOTc5NyAxMDA2NDQNCj4g LS0tIGEvbGliL2xpYnJ0ZV92aG9zdC92aG9zdF91c2VyLmMNCj4gKysrIGIvbGliL2xpYnJ0ZV92 aG9zdC92aG9zdF91c2VyLmMNCj4gQEAgLTQ3MCw2ICs0NzAsMTAgQEAgdmhvc3RfdXNlcl9zZXRf dnJpbmdfbnVtKHN0cnVjdCB2aXJ0aW9fbmV0ICoqcGRldiwNCj4gIAkJcmV0dXJuIFJURV9WSE9T VF9NU0dfUkVTVUxUX0VSUjsNCj4gIAl9DQo+IA0KPiArCWlmIChkZXYtPmZlYXR1cmVzICYgKDFV TEwgPDwgVklSVElPX0ZfSU9NTVVfUExBVEZPUk0pKSB7DQo+ICsJCWlmICh2aG9zdF91c2VyX2lv dGxiX2luaXQoZGV2LCBtc2ctPnBheWxvYWQuc3RhdGUuaW5kZXgpKQ0KPiArCQkJcmV0dXJuIFJU RV9WSE9TVF9NU0dfUkVTVUxUX0VSUjsNCj4gKwl9DQo+ICAJcmV0dXJuIFJURV9WSE9TVF9NU0df UkVTVUxUX09LOw0KPiAgfQ0KPiANCj4gQEAgLTU3NSw3ICs1NzksNyBAQCBudW1hX3JlYWxsb2Mo c3RydWN0IHZpcnRpb19uZXQgKmRldiwgaW50IGluZGV4KQ0KPiAgCWRldi0+dmlydHF1ZXVlW2lu ZGV4XSA9IHZxOw0KPiAgCXZob3N0X2RldmljZXNbZGV2LT52aWRdID0gZGV2Ow0KPiANCj4gLQlp ZiAob2xkX3ZxICE9IHZxKQ0KPiArCWlmIChvbGRfdnEgIT0gdnEgJiYgKGRldi0+ZmVhdHVyZXMg JiAoMVVMTCA8PCBWSVJUSU9fRl9JT01NVV9QTEFURk9STSkpKQ0KPiAgCQl2aG9zdF91c2VyX2lv dGxiX2luaXQoZGV2LCBpbmRleCk7DQo+IA0KPiAgCXJldHVybiBkZXY7DQo+IC0tDQo+IDIuMTEu MA0KDQpSZXZpZXdlZC1ieTogQ2hlbmJvIFhpYSA8Y2hlbmJvLnhpYUBpbnRlbC5jb20+DQo=