From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 8B8E6A04A4; Wed, 2 Mar 2022 17:50:18 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 1C24842715; Wed, 2 Mar 2022 17:50:18 +0100 (CET) Received: from smartserver.smartsharesystems.com (smartserver.smartsharesystems.com [77.243.40.215]) by mails.dpdk.org (Postfix) with ESMTP id C035440141 for ; Wed, 2 Mar 2022 17:50:16 +0100 (CET) X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Subject: RE: MTU and frame size filtering inaccuracy Date: Wed, 2 Mar 2022 17:50:13 +0100 Message-ID: <98CBD80474FA8B44BF855DF32C47DC35D86F17@smartserver.smartshare.dk> In-Reply-To: <20220302082159.06d3d872@hermes.local> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: MTU and frame size filtering inaccuracy Thread-Index: AdguUaopIOQU4HfXQkmXEPAnj2kUkgAAXoUQ References: <98CBD80474FA8B44BF855DF32C47DC35D86F14@smartserver.smartshare.dk> <20220302082159.06d3d872@hermes.local> From: =?utf-8?B?TW9ydGVuIEJyw7hydXA=?= To: "Stephen Hemminger" Cc: "Ferruh Yigit" , , "Thomas Monjalon" , "Andrew Rybchenko" , , "Qi Zhang" , "Ajit Khaparde" , "Ray Kinsella" , "Bruce Richardson" , "Damjan Marion (damarion)" , "Roy Fan Zhang" , "Min Hu (Connor)" , "Konstantin Ananyev" , "Stokes, Ian" , "David Marchand" 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 PiBGcm9tOiBTdGVwaGVuIEhlbW1pbmdlciBbbWFpbHRvOnN0ZXBoZW5AbmV0d29ya3BsdW1iZXIu b3JnXQ0KPiBTZW50OiBXZWRuZXNkYXksIDIgTWFyY2ggMjAyMiAxNy4yMg0KPiANCj4gT24gV2Vk LCAyIE1hciAyMDIyIDA5OjUzOjQyICswMTAwDQo+IE1vcnRlbiBCcsO4cnVwIDxtYkBzbWFydHNo YXJlc3lzdGVtcy5jb20+IHdyb3RlOg0KPiANCj4gPiA+IEZyb206IEZlcnJ1aCBZaWdpdCBbbWFp bHRvOmZlcnJ1aC55aWdpdEBpbnRlbC5jb21dDQo+ID4gPiBTZW50OiBUdWVzZGF5LCAxIE1hcmNo IDIwMjIgMTguNTANCj4gPiA+DQo+ID4gPiBIaSBhbGwsDQo+ID4gPg0KPiA+ID4gVGhlcmUgaXMg YSBwcm9ibGVtIGluIE1UVSBzZXR0aW5nIGluIERQREsuDQo+ID4NCj4gPiBZZXMsIGFuZCB0aGUg cm9vdCBjYXVzZSBpcyB0aGUgdW5jbGVhciBkZWZpbml0aW9uIG9mIHdoYXQgIk1UVSIgbWVhbnMN Cj4gaW4gRFBESyEgVGhpcyBpcyBjYXVzaW5nIHRoZSBjb25mdXNpb24gYWJvdXQgTDMgcGFja2V0 IHNpemUsIEwyIHJhdw0KPiBwYWNrZXQgc2l6ZSwgYW5kIEwyIGVuY2Fwc3VsYXRlZCBwYWNrZXQg c2l6ZS4NCj4gPg0KPiA+IFRyYWRpdGlvbmFsIEV0aGVybmV0IGxpbmtzIGFyZSBleHBlY3RlZCB0 byBwcm92aWRlIGEgMTUwMCBieXRlIEwzDQo+IE1UVS4gVGhpcyBtZWFucyB0aGF0IGFuIHVudGFn Z2VkIHBhY2tldCBjYW4gYmUgMTUxOCBieXRlIChpbmNsLiAxNCBieXRlDQo+IEV0aGVybmV0IGhl YWRlciBhbmQgNCBieXRlIEV0aGVybmV0IENSQyksIGEgVkxBTiB0YWdnZWQgcGFja2V0IGNhbiBi ZQ0KPiAxNTIyIGJ5dGUsIGEgUWluUSB0YWdnZWQgcGFja2V0IGNhbiBiZSAxNTI2IGJ5dGUsIGFu ZCBNUExTIHRhZ2dlZA0KPiBwYWNrZXRzIGNhbiBiZSBvdGhlciBzaXplcywgZGVwZW5kaW5nIG9u IHRoZSBudW1iZXIgb2YgTVBMUyBsYWJlbHMuDQo+ID4NCj4gPiBPcHRpbWFsbHksIHRoZSBOSUMg aGFyZHdhcmUgd291bGQgdW5kZXJzdGFuZCB0aGVzZSBhZGRpdGlvbmFsIGhlYWRlcnMNCj4gYW5k IGRldGVybWluZSBpZiB0aGUgcGFja2V0IGlzIG92ZXJzaXplZCBvciBub3QsIGUuZy4gb24gYSBo eWJyaWQgbGluaw0KPiAoaS5lLiBtaXhlZCB1bnRhZ2dlZCBhbmQgVkxBTiB0YWdnZWQgdHJhZmZp YyksIGl0IHNob3VsZCBjb25zaWRlciBhDQo+IDE1MjIgYnl0ZSBwYWNrZXQgb3ZlcnNpemUgaWYg dW50YWdnZWQsIGJ1dCBjb3JyZWN0bHkgc2l6ZWQgaWYgVkxBTg0KPiB0YWdnZWQuIEhvd2V2ZXIs IHRoZSBOSUMgaGFyZHdhcmUgZG9lc24ndCBkbyB0aGlzLg0KPiA+DQo+ID4gVGhlIGFib3ZlIG9u bHkgZGVzY3JpYmVzIHRoZSBwcm9ibGVtIG9mIGNvbnZlcnRpbmcgYmV0d2VlbiB0aGUgTDMgYW5k DQo+IEwyIHBhY2tldCBzaXplIC0gaS5lLiB0aGUgbG9naWNhbCBwYWNrZXQgc2l6ZXMuIFRoZXJl IGlzIGFsc28gYQ0KPiBwaHlzaWNhbCBsaW1pdGF0aW9uOg0KPiA+DQo+ID4gVGhlIE5JQyBoYXJk d2FyZSBtaWdodCBzdXBwb3J0IGEgY2VydGFpbiBtYXhpbXVtIHJhdyBMMiBwYWNrZXQgc2l6ZSwN Cj4gc3VjaCBhcyAxNTIyIGJ5dGUgb3IgMjA0OCBieXRlLiBJbiB0aGlzIGNhc2UsIHlvdSBkb24n dCB3YW50IHRvIGFsbG93DQo+IGxhcmdlciBwYWNrZXRzIHJlZ2FyZGxlc3Mgb2YgdGhlIG51bWJl ciBvZiBWTEFOIHRhZ3Mgb3IgTVBMUyBsYWJlbHMNCj4gcHJlY2VkaW5nIHRoZSBhY3R1YWwgcGFj a2V0LiBZb3UgY291bGQgZXZlbiByaXNrIGFsbG9jYXRpbmcgdG9vIHNtYWxsDQo+IE1CVUZzLg0K PiA+DQo+ID4gSW4gc3VtbWFyeSwgSSB0aGluayB0aGUgd2hvbGUgTVRVIGhhbmRsaW5nIEFQSSBp cyB1dHRlcmx5IGRlZmVjdGl2ZS4NCj4gPg0KPiA+IE9wdGltYWxseSwgdGhlIEFQSSBzaG91bGQg ZGlzY3JpbWluYXRlIGJldHdlZW4gbWF4aW11bSBlbmNhcHN1bGF0ZWQNCj4gTDIgcGFja2V0IHNp emUgKGkuZS4gbm90IGNvdW50aW5nIHRoZSBieXRlcyB1c2VkIGZvciBWTEFOIHRhZ3MgYW5kDQo+ IHNpbWlsYXIpIGFuZCBtYXhpbXVtIHJhdyBMMiBwYWNrZXQgc2l6ZSAoaS5lLiBhbHNvIGNvdW50 aW5nIGJ5dGVzIHVzZWQNCj4gZm9yIFZMQU4gdGFncyBhbmQgc2ltaWxhcikuDQo+ID4NCj4gPiBX aGVuIHRoaXMgd2FzIGRpc2N1c3NlZCBvbiB0aGUgRFBESyBtYWlsaW5nIGxpc3QgYSBjb3VwbGUg b2YgeWVhcnMNCj4gYWdvIFsxXSwgdGhlcmUgd2FzIG5vIHN1cHBvcnQgZm9yIGltcHJvdmluZyBv biB0aGlzIHNpdHVhdGlvbiwgYW5kIHRoZQ0KPiBkZWNpc2lvbiB3YXMgdG8gYmxpbmRseSBhZG9w dCBMaW51eCcgd2F5IG9mIGhhbmRsaW5nIGl0OiBDb25zaWRlciB0aGUNCj4gTVRVIGFzIGlmIHBh Y2tldHMgYXJlIHVudGFnZ2VkLCBhbmQgYWxsb3cgNCBtb3JlIGJ5dGUgZm9yIHNpbmdsZSBWTEFO DQo+IHRhZ2dlZCBwYWNrZXRzLiBJIGRvbid0IHJlY2FsbCBleGFjdGx5IGhvdyBRaW5RIHRhZ2dl ZCBwYWNrZXRzIGFyZQ0KPiBzdXBwb3NlZCB0byBiZSBjb25zaWRlcmVkIHJlZ2FyZGluZyB0aGUg TVRVLCBhbmQgSSBhbHNvIGRvbid0IGtub3cNCj4gd2hlcmUgYW55IG9mIHRoaXMgaXMgZG9jdW1l bnRlZC4NCj4gPg0KPiA+IFsxXQ0KPiBodHRwOi8vaW5ib3guZHBkay5vcmcvZGV2L01OMlBSMThN QjI0MzI1MjZBMzlDNkVDRUIyQ0VCODg2NUFGRTAwQE1OMlBSMQ0KPiA4TUIyNDMyLm5hbXByZDE4 LnByb2Qub3V0bG9vay5jb20vDQo+ID4NCj4gPiA+DQo+ID4gPiBJbiAncnRlX2V0aF9kZXZfY29u ZmlndXJlKCknYW5kICdydGVfZXRoX2Rldl9zZXRfbXR1KCknLCBNVFUgaXMNCj4gPiA+IGNvbnZl cnRlZCB0byBmcmFtZSBzaXplLg0KPiA+ID4NCj4gPiA+IFNpbmNlIEwyIHByb3RvY29sIGhlYWRl ciBzaXplIGNoYW5nZXMgYmFzZWQgb24gd2hhdCBIVyBzdXBwb3J0cywNCj4gPiA+IEwyIG92ZXJo ZWFkIGluZm9ybWF0aW9uIGdldCBmcm9tIFBNRCwgYnV0IHRoaXMgc3RpbGwgZG9lc24ndCBzb2x2 ZQ0KPiA+ID4gdGhlIGlzc3VlLg0KPiA+ID4NCj4gPiA+IFBNRCByZXBvcnRzIG1heCBvdmVyaGVh ZCBiYXNlZCBvbiB3aGF0IGl0IHN1cHBvcnRzLCBidXQgdGhlcmUgaXMNCj4gPiA+IG5vIHdheSB0 byBrbm93IHdoYXQgd2lsbCByZWNlaXZlZCBwYWNrZXRzIGhhdmUuIFNhbXBsZToNCj4gPiA+DQo+ ID4gPiBpNDBlIGhhcyAyNiBieXRlcyBvdmVyaGVhZDogSFJEX0xFTiArIENSQ19MRU4gKyBWTEFO X0xFTiAqMg0KPiA+ID4gd2hlbiBNVFUgc2V0IHRvIDE1MDAsIGNvbmZpZ3VyZWQgZnJhbWUgc2l6 ZSBiZWNvbWUgMTUyNg0KPiA+ID4gV2hlbiBhIHBhY2tldCByZWNlaXZlZCB3aXRoIG5vIFZMQU4g dGFnIGFuZCAxNTA0IGJ5dGVzIHBheWxvYWQsDQo+ID4gPiBwYWNrZXQgZnJhbWUgc2l6ZSBpcyAx NTIyIGJ5dGVzIGFuZCBpdCBpcyBhY2NlcHRlZC4NCj4gPiA+IFNvIGFsdGhvdWdoIE1UVSBpcyBz ZXQgMTUwMCBieXRlcywgcGFja2V0IHdpdGggMTUwNCBieXRlcyBpcw0KPiBhY2NlcHRlZC4NCj4g PiA+DQo+ID4gPiBUaGVyZSBpcyBhbiBpbmFjY3VyYWN5IGluIGZyYW1lIHNpemUgZmlsdGVyaW5n IHVwIHRvIDggYnl0ZXMuDQo+ID4gPg0KPiA+ID4NCj4gPiA+IERhbWphbiByZXBvcnRlZCB0aGUg c2FtZSwgYW5kIGhlIGhhcyBnb29kIHBvaW50IG9uIHRoZSBhcHBsaWNhdGlvbg0KPiA+ID4gbmVl ZCAoSSBob3BlIGl0IGlzIE9LIHRvIHF1b3RlIGZyb20gaGlzIGVtYWlsKToNCj4gPiA+DQo+ID4g PiAxKSBpbmZvcm1hdGlvbiBhYm91dCB0aGUgYmlnZ2VzdCBsMiBmcmFtZSBpbnRlcmZhY2UgaXQg Y2FuIHJlY2VpdmUNCj4gYW5kDQo+ID4gPiBzZW5kICgxNTE4LDE1MjIsIDIwMDAgb3IganVtYm8p DQo+ID4NCj4gPiBZZXMsIEkgdGhpbmsgdGhlIEFQSSBzaG91bGQgcmVwb3J0IHRoZSAibWF4aW11 bSByYXcgTDIgcGFja2V0IHNpemUiDQo+IChpLmUuIGFsc28gY291bnRpbmcgdGhlIGJ5dGVzIHVz ZWQgZm9yIGFueSBwcmVjZWRpbmcgdGFncywgcmVnYXJkbGVzcw0KPiBpZiB0aGV5IGFyZSBzdHJp cHBlZCBvciBub3QpLg0KPiA+DQo+ID4gPiAyKSBhYmlsaXR5IHRvIGFzayBoYXJkd2FyZSB0byBo ZWxwIGhpbSB3aXRoIGZpbHRlcmluZyBvdmVyc2l6ZWQNCj4gZnJhbWVzDQo+ID4gPg0KPiA+ID4N Cj4gPiA+IFdlIG5lZWQgdG8gZml4ICgyKSwgSSBhbSBub3QgcXVpdGUgc3VyZSBob3csIGFueSBj b21tZW50IGlzDQo+IHdlbGNvbWUuDQo+ID4NCj4gPiBUaGlzIHdvdWxkIHJlcXVpcmUgTklDIGhh cmR3YXJlIHN1cHBvcnQgYW5kIG9wdGlvbmFsbHkgdGhlIGFkZGl0aW9uDQo+IG9mIGEgTklDIGNv bmZpZ3VyYXRpb24gZmxhZyB0byBjb250cm9sIHdoZXRoZXIgaXQgc2hvdWxkIGNvdW50IHRoZQ0K PiBieXRlcyB1c2VkIGJ5IGFueSBwcmVjZWRpbmcgVkxBTiB0YWdzIGFuZC9vciBNUExTIGxhYmVs cyB3aGVuDQo+IGV2YWx1YXRpbmcgdGhlIHBhY2tldCBzaXplIG9yIG5vdC4NCj4gPg0KPiA+IFRo ZSBzaG9ydCB0ZXJtIHNvbHV0aW9uIGlzIGEgd29ya2Fyb3VuZCBpbiB0aGUgYXBwbGljYXRpb246 IENvbmZpZ3VyZQ0KPiB0aGUgTklDcyB3aXRoIGFuIG92ZXJzaXplIE1UVSAoZS5nLiArOCBieXRl IHRvIHN1cHBvcnQgUWluUSBwYWNrZXRzKQ0KPiBhbmQgY2hlY2sgdGhlIHBhY2tldHMgZm9yIG92 ZXJzaXplIGluIHRoZSBhcHBsaWNhdGlvbi4gVW5mb3J0dW5hdGVseSwNCj4gdGhpcyBhbHNvIG1l YW5zIHRoYXQgdGhlIE5JQyBoYXJkd2FyZSBjb3VudGVycyBhcmUgbm8gbG9uZ2VyIGNvcnJlY3Qs DQo+IGFuZCB0aGUgcmVwb3J0ZWQgY291bnRlcnMgbXVzdCBiZSBhZGp1c3RlZCBmb3IgdGhlIG51 bWJlciBvZiBvdmVyc2l6ZQ0KPiBwYWNrZXRzIGRldGVjdGVkIGJ5IHRoZSBhcHBsaWNhdGlvbi4N Cj4gDQo+IE1UVSBpcyBvZnRlbiBhIGNvbmZ1c2luZyB0ZXJtLiBJZGVhbGx5IHRoZXJlIHdvdWxk IGJlIE1heCBSZWNlaXZlIFVuaXQNCj4gYW5kIE1heCBUcmFuc21pdCBVbml0Lg0KPiBJIGNhbiB0 ZWxsIHlvdSB3aGF0IExpbnV4IChhbmQgQlNEKSBrZXJuZWwgZG8uIE9uIHRyYW5zbWl0IE1UVSBp cyB1c2VkDQo+IGFzIGZpbHRlciB0byBzaXplDQo+IHBhY2tldHMgYmVmb3JlIHRoZXkgYXJlIHBh c3NlZCB0byB0aGUgZGV2aWNlIGRyaXZlci4gIEFsc28gaXQgaXMgdXNlZA0KPiB0byB0ZWxsIFRT TyB3aGF0IHNpemUNCj4gdW5pdHMgdG8gdXNlLg0KPiANCj4gQnV0IG9uIHJlY2VpdmUsIGluIGtl cm5lbCBhbnkgc2l6ZSBwYWNrZXQgaXMgYWxsb3dlZCENCg0KVGhpcyBtYWtlcyBwZXJmZWN0IHNl bnNlIG9uIGEgc2VydmVyLCB3aGVyZSB0cmFmZmljIGlzIHRlcm1pbmF0ZWQgb3Igb3JpZ2luYXRl ZC4NCg0KSG93ZXZlciwgSSdtIG5vdCBzbyBzdXJlIHRoYXQgaXQgbWFrZXMgdGhlIHNhbWUgbGV2 ZWwgb2Ygc2Vuc2Ugb24gYSByb3V0ZXIgb3Igb3RoZXIgbmV0d29yayBhcHBsaWFuY2UuDQoNCj4g VGhlIE1UVSBpcyB1c2VkDQo+IGJ5IHRoZSBoYXJkd2FyZSB0byBwcm9ncmFtDQo+IHJlY2VpdmUg YnVmZmVycy4gIE1hbnkgZGV2aWNlcyByb3VuZCB1cCB0byBNVFUgKyBWTEFOIHRvIHdoYXQgZXZl cg0KPiBoYXJkd2FyZSBpbmNyZW1lbnQgdGhleSBjYW4NCj4gaGFuZGxlLiBTb21lIGRldmljZXMg b25seSBoYW5kbGUgcG93ZXIgb2YgMiB3aGljaCBpcyB3aHkgRTEwMDAgYWxsb3dzDQo+IDJLIHBh Y2tldHMgdG8gY29tZSBpbiB3aGVuDQo+IHRoZXJlIGlzIGEgMTUwMCBieXRlIE1UVS4NCj4gDQo+ IFRoZSBvdGhlciBzb3VyY2Ugb2YgY29uZnVzaW9uIGlzIGFyb3VuZCBNVFUgYW5kIFZMQU4ncyBh bmQgZW5jYXBzLiBEUERLDQo+IHNob3VsZCBiZSBkb2luZyB3aGF0DQo+IG90aGVyIE9TJ3MgYW5k IG1vc3QgbmV0d29yayB2ZW5kb3JzIGRvLg0KPiBUaGUgY29udmVudGlvbiBpcyB0aGF0IHRoZSBv dXRlciBWTEFOIHRhZyBpcyBub3QgcGFydCBvZiB0aGUgTVRVIGJ1dA0KPiBhbnkgb3RoZXIgdGFn cyBhbmQgZW5jYXBzIHN1YnRyYWN0IGZyb20gdGhlIHVzYWJsZSBNVFUuICBJLmUgd2l0aCBNVFUg PQ0KPiAxNTAwIGFuZCBRaW5RIHRoZSB1c2FibGUgTVRVIGlzIDE1MDAgLSA0ID0gMTQ5Ni4NCj4g DQo+IEZvciByZWNlaXZlIGFuZCBNVFUsIERQREsgc2hvdWxkIGFsbG93IGFueSBzaXplIGNvbWlu ZyBpbiB0aGF0IEhXIGNhbg0KPiByZWNlaXZlLg0KPiBQb3N0ZWwncyBMYXcgLSBCZSBjb25zZXJ2 YXRpdmUgaW4gd2hhdCB5b3UgZG8sIGJlIGxpYmVyYWwgaW4gd2hhdCB5b3UNCj4gYWNjZXB0IGZy b20gb3RoZXJzLg0KPiANCg0KQWdhaW4sIFBvc3RlbCdzIExhdyBtYWtlcyBwZXJmZWN0IHNlbnNl IG9uIGEgc2VydmVyLg0KDQpPbiBhIG5ldHdvcmsgYXBwbGlhbmNlLCBJIHdvdWxkIHByZWZlciBk aXNjYXJkaW5nIG92ZXJzaXplIHBhY2tldHMgYXQgaW5ncmVzcywgcmF0aGVyIHRoYW4gcHJvY2Vz cyB0aGVtIGFuZCBkaXNjYXJkIHRoZW0gYXQgZWdyZXNzLg0KDQpJIGRvIGFkbWl0IHRoYXQgbXkg dmlld3BvaW50IGlzIHF1aXRlIGFjYWRlbWljLCBhbmQgbW9zdGx5IHJlbGV2YW50IGZvciBMMiBi cmlkZ2luZyBhcHBsaWFuY2VzLCB3aGVyZSBmcmFnbWVudGF0aW9uIGlzIG5vdCBhdmFpbGFibGUu IEl0IGlzIHByb2JhYmx5IHRoZSBiZXN0IGFwcHJvYWNoIGZvciBEUERLIHRvIGFsaWduIHRoZSBB UEkgd2l0aCB3aGF0IGNvbW1vbiBOSUMgaGFyZHdhcmUgc3VwcG9ydHMuIEluIG90aGVyIHdvcmRz LCBJIGFncmVlIHdpdGggU3RlcGhlbi4gOi0pDQoNCg==