From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net-next v2] net: ipv6: avoid overhead when no custom FIB rules are installed Date: Tue, 08 Aug 2017 21:40:23 -0700 (PDT) Message-ID: <20170808.214023.1367570931294936647.davem@davemloft.net> References: <66e3d00a-6788-2e86-9563-fc1424a6a250@gmail.com> <20170808182349.4987-1-vincent@bernat.im> Mime-Version: 1.0 Content-Type: Text/Plain; charset=utf-8 Content-Transfer-Encoding: base64 Cc: kuznet@ms2.inr.ac.ru, yoshfuji@linux-ipv6.org, jiri@mellanox.com, netdev@vger.kernel.org, dsa@cumulusnetworks.com To: vincent@bernat.im Return-path: Received: from shards.monkeyblade.net ([184.105.139.130]:60612 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750830AbdHIEkY (ORCPT ); Wed, 9 Aug 2017 00:40:24 -0400 In-Reply-To: <20170808182349.4987-1-vincent@bernat.im> Sender: netdev-owner@vger.kernel.org List-ID: RnJvbTogVmluY2VudCBCZXJuYXQgPHZpbmNlbnRAYmVybmF0LmltPg0KRGF0ZTogVHVlLCAgOCBB dWcgMjAxNyAyMDoyMzo0OSArMDIwMA0KDQo+IElmIHRoZSB1c2VyIGhhc24ndCBpbnN0YWxsZWQg YW55IGN1c3RvbSBydWxlcywgZG9uJ3QgZ28gdGhyb3VnaCB0aGUNCj4gd2hvbGUgRklCIHJ1bGVz IGxheWVyLiBUaGlzIGlzIHByZXR0eSBzaW1pbGFyIHRvIGY0NTMwZmE1NzRkZiAoaXB2NDoNCj4g QXZvaWQgb3ZlcmhlYWQgd2hlbiBubyBjdXN0b20gRklCIHJ1bGVzIGFyZSBpbnN0YWxsZWQpLg0K PiANCj4gVXNpbmcgYSBtaWNyby1iZW5jaG1hcmsgbW9kdWxlIFsxXSwgdGltaW5nIGlwNl9yb3V0 ZV9vdXRwdXQoKSB3aXRoDQo+IGdldF9jeWNsZXMoKSwgd2l0aCA0MCwwMDAgcm91dGVzIGluIHRo ZSBtYWluIHJvdXRpbmcgdGFibGUsIGJlZm9yZSB0aGlzDQo+IHBhdGNoOg0KPiANCj4gICAgIG1p bj02MDYgbWF4PTEyOTExIGNvdW50PTYyNyBhdmVyYWdlPTE5NTkgOTV0aD00OTAzIDkwdGg9Mzc0 NyA1MHRoPTE2MDIgbWFkPTgyMQ0KPiAgICAgdGFibGU9MjU0IGF2Z2RlcHRoPTIxLjggbWF4ZGVw dGg9MzkNCj4gICAgIHZhbHVlIOKUgiAgICAgICAgICAgICAgICAgICAgICAgICDilIogICAgICAg ICAgICAgICAgICAgICAgICAgICAgY291bnQNCj4gICAgICAgNjAwIOKUguKWkuKWkuKWkuKWkuKW kuKWkuKWkuKWkuKWkuKWkuKWkuKWkuKWkuKWkuKWkiAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgMTk5DQo+ICAgICAgIDg4MCDilILilpLilpLilpLilpHilpHilpHilpHi lpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpEgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgIDQzDQo+ICAgICAgMTE2MCDilILilpLilpLilpLilpHilpHilpHilpHi lpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpEgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgNDgNCj4gICAgICAxNDQwIOKUguKWkuKWkuKWkuKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkSAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICA0Mw0KPiAgICAgIDE3MjAg4pSC 4paS4paS4paS4paS4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paRICAgICAgICAgICAgICAgICAgICAg ICAgICA1OQ0KPiAgICAgIDIwMDAg4pSC4paS4paS4paS4paR4paR4paR4paR4paR4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR 4paR4paR4paR4paR4paRICAgICAgICAgICAgICAgICAgICAgIDUwDQo+ICAgICAgMjI4MCDilILi lpLilpLilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHi lpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpEgICAg ICAgICAgICAgICAgICAgIDI2DQo+ICAgICAgMjU2MCDilILilpLilpLilpHilpHilpHilpHilpHi lpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHi lpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpEgICAgICAgICAgICAgICAgICAz MQ0KPiAgICAgIDI4NDAg4pSC4paS4paS4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paR4paR4paR4paRICAgICAgICAgICAgICAgMjgNCj4gICAgICAz MTIwIOKUguKWkuKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkSAgICAgICAgICAgICAgMTcNCj4gICAgICAzNDAwIOKUguKW kuKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkSAgICAgICAgICAgICAxNw0KPiAgICAgIDM2ODAg4pSC4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR 4paR4paR4paR4paRICAgICAgICAgICAgIDgNCj4gICAgICAzOTYwIOKUguKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkSAgICAgICAgICAgMTENCj4gICAgICA0MjQwIOKUguKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkSAgICAgICAgICAgIDYNCj4gICAgICA0NTIwIOKUguKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkSAgICAgICAgICAgNg0KPiAgICAgIDQ4MDAg4pSC4paR4paR4paR4paR4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR 4paR4paRICAgICAgICAgICA5DQo+IA0KPiBBZnRlcjoNCj4gDQo+ICAgICBtaW49NTQ0IG1heD0x MTY4NyBjb3VudD02MjcgYXZlcmFnZT0xNzc2IDk1dGg9NDU0NiA5MHRoPTM1ODUgNTB0aD0xMjI3 IG1hZD01NjUNCj4gICAgIHRhYmxlPTI1NCBhdmdkZXB0aD0yMS44IG1heGRlcHRoPTM5DQo+ICAg ICB2YWx1ZSDilIIgICAgICAgICAgICAgICAgICAgICAgICAg4pSKICAgICAgICAgICAgICAgICAg ICAgICAgICAgIGNvdW50DQo+ICAgICAgIDU0MCDilILilpLilpLilpLilpLilpLilpLilpLilpLi lpLilpLilpLilpLilpLilpLilpLilpIgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgMjAxDQo+ICAgICAgIDgwMCDilILilpLilpLilpLilpLilpLilpHilpHilpHilpHilpHi lpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpEgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICA2Mw0KPiAgICAgIDEwNjAg4pSC4paS4paS4paS4paS4paS4paR4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paRICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgIDY4DQo+ICAgICAgMTMyMCDilILilpLilpLilpLilpHi lpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHi lpHilpHilpHilpHilpHilpEgICAgICAgICAgICAgICAgICAgICAgICAgICAgMzkNCj4gICAgICAx NTgwIOKUguKWkuKWkuKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkSAgICAgICAgICAg ICAgICAgICAgICAgICAzMg0KPiAgICAgIDE4NDAg4pSC4paS4paS4paR4paR4paR4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paRICAgICAgICAgICAgICAgICAgICAgICAzMg0KPiAgICAgIDIx MDAg4pSC4paS4paS4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR 4paRICAgICAgICAgICAgICAgICAgICAzNA0KPiAgICAgIDIzNjAg4pSC4paS4paS4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paRICAgICAgICAg ICAgICAgICAzMw0KPiAgICAgIDI2MjAg4pSC4paS4paS4paR4paR4paR4paR4paR4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paRICAgICAgICAgICAgICAgMjYN Cj4gICAgICAyODgwIOKUguKWkuKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkSAgICAgICAgICAgICAgMjINCj4gICAgICAz MTQwIOKUguKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkSAgICAgICAgICAgICAgOQ0KPiAgICAgIDM0MDAg4pSC 4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR4paR 4paR4paR4paR4paR4paR4paR4paRICAgICAgICAgICAgIDgNCj4gICAgICAzNjYwIOKUguKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkSAgICAgICAgICAgICA5DQo+ICAgICAgMzkyMCDilILilpHilpHilpHi lpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHi lpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHi lpHilpHilpHilpHilpEgICAgICAgICAgICA4DQo+ICAgICAgNDE4MCDilILilpHilpHilpHilpHi lpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHi lpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHilpHi lpHilpHilpHilpHilpEgICAgICAgICAgIDgNCj4gICAgICA0NDQwIOKUguKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKWkeKW keKWkeKWkeKWkeKWkSAgICAgICAgICAgOA0KPiANCj4gQXQgdGhlIGZyZXF1ZW5jeSBvZiB0aGUg aG9zdCBkdXJpbmcgdGhlIGJlbmNoICh+IDMuNyBHSHopLCB0aGlzIGlzDQo+IGFib3V0IGEgMTAw IG5zIGRpZmZlcmVuY2Ugb24gdGhlIG1lZGlhbiB2YWx1ZS4NCj4gDQo+IEEgbmV4dCBzdGVwIHdv dWxkIGJlIHRvIGNvbGxhcHNlIGxvY2FsIGFuZCBtYWluIHRhYmxlcywgYXMgaW4NCj4gMGRkY2Y0 M2Q1ZDRhIChpcHY0OiBGSUIgTG9jYWwvTUFJTiB0YWJsZSBjb2xsYXBzZSkuDQo+IA0KPiBbMV06 IGh0dHBzOi8vZ2l0aHViLmNvbS92aW5jZW50YmVybmF0L25ldHdvcmstbGFiL2Jsb2IvbWFzdGVy L2xhYi1yb3V0ZXMtaXB2Ni9rYmVuY2hfbW9kLmMNCj4gDQo+IFNpZ25lZC1vZmYtYnk6IFZpbmNl bnQgQmVybmF0IDx2aW5jZW50QGJlcm5hdC5pbT4NCj4gUmV2aWV3ZWQtYnk6IEppcmkgUGlya28g PGppcmlAbWVsbGFub3guY29tPg0KDQpMb29rcyBncmVhdCwgYXBwbGllZCwgdGhhbmtzIQ0K