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 X-Spam-Level: X-Spam-Status: No, score=-0.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_SBL,URIBL_SBL_A autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 76786C31E5B for ; Tue, 18 Jun 2019 17:06:42 +0000 (UTC) Received: from dpdk.org (dpdk.org [92.243.14.124]) by mail.kernel.org (Postfix) with ESMTP id 0BD7C20B1F for ; Tue, 18 Jun 2019 17:06:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0BD7C20B1F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=dev-bounces@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id CF93E1C261; Tue, 18 Jun 2019 19:06:40 +0200 (CEST) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id 7B0211C24B for ; Tue, 18 Jun 2019 19:06:38 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Jun 2019 10:06:37 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.63,389,1557212400"; d="scan'208";a="164759332" Received: from fmsmsx108.amr.corp.intel.com ([10.18.124.206]) by orsmga006.jf.intel.com with ESMTP; 18 Jun 2019 10:06:36 -0700 Received: from fmsmsx114.amr.corp.intel.com (10.18.116.8) by FMSMSX108.amr.corp.intel.com (10.18.124.206) with Microsoft SMTP Server (TLS) id 14.3.439.0; Tue, 18 Jun 2019 10:06:36 -0700 Received: from fmsmsx108.amr.corp.intel.com ([169.254.9.149]) by FMSMSX114.amr.corp.intel.com ([169.254.6.20]) with mapi id 14.03.0439.000; Tue, 18 Jun 2019 10:06:36 -0700 From: "Eads, Gage" To: Ola Liljedahl , Honnappa Nagarahalli , "Richardson, Bruce" , "dev@dpdk.org" CC: nd Thread-Topic: [RFC,v2] lfring: lock-free ring buffer Thread-Index: AQHUuLnsVjNyP3ffWk++amgxuRaei6aOD9BwgA/5YICABG5iwA== Date: Tue, 18 Jun 2019 17:06:35 +0000 Message-ID: <9184057F7FC11744A2107296B6B8EB1E68CFBA4C@FMSMSX108.amr.corp.intel.com> References: <1548866179-20766-1-git-send-email-ola.liljedahl@arm.com> <9184057F7FC11744A2107296B6B8EB1E68CD76ED@FMSMSX108.amr.corp.intel.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-titus-metadata-40: eyJDYXRlZ29yeUxhYmVscyI6IiIsIk1ldGFkYXRhIjp7Im5zIjoiaHR0cDpcL1wvd3d3LnRpdHVzLmNvbVwvbnNcL0ludGVsMyIsImlkIjoiZjg3MDU1NDEtZmFiNS00ODAwLTlkODQtNmE2MTZiN2M2MDdjIiwicHJvcHMiOlt7Im4iOiJDVFBDbGFzc2lmaWNhdGlvbiIsInZhbHMiOlt7InZhbHVlIjoiQ1RQX05UIn1dfV19LCJTdWJqZWN0TGFiZWxzIjpbXSwiVE1DVmVyc2lvbiI6IjE3LjEwLjE4MDQuNDkiLCJUcnVzdGVkTGFiZWxIYXNoIjoickZiSCtYMTlCTW1VejF6YXpDQVZDODVVbjFaV1BPdDBIZGhKbndiQ0UzZFZEVHd6SHVrZ1k1aUlvZGx0cUlTQyJ9 x-ctpclassification: CTP_NT dlp-product: dlpe-windows dlp-version: 11.0.600.7 dlp-reaction: no-action x-originating-ip: [10.1.200.106] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Subject: Re: [dpdk-dev] [RFC,v2] lfring: lock-free ring buffer X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 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" DQoNCj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCj4gRnJvbTogT2xhIExpbGplZGFobCBb bWFpbHRvOk9sYS5MaWxqZWRhaGxAYXJtLmNvbV0NCj4gU2VudDogU2F0dXJkYXksIEp1bmUgMTUs IDIwMTkgNDowMCBQTQ0KPiBUbzogSG9ubmFwcGEgTmFnYXJhaGFsbGkgPEhvbm5hcHBhLk5hZ2Fy YWhhbGxpQGFybS5jb20+OyBSaWNoYXJkc29uLA0KPiBCcnVjZSA8YnJ1Y2UucmljaGFyZHNvbkBp bnRlbC5jb20+OyBFYWRzLCBHYWdlIDxnYWdlLmVhZHNAaW50ZWwuY29tPjsNCj4gZGV2QGRwZGsu b3JnDQo+IENjOiBuZCA8bmRAYXJtLmNvbT4NCj4gU3ViamVjdDogUmU6IFtSRkMsdjJdIGxmcmlu ZzogbG9jay1mcmVlIHJpbmcgYnVmZmVyDQo+IA0KPiBPbiBXZWQsIDIwMTktMDYtMDUgYXQgMTg6 MjEgKzAwMDAsIEVhZHMsIEdhZ2Ugd3JvdGU6DQo+ID4gSGkgT2xhLA0KPiA+DQo+ID4gSXMgaXQg cG9zc2libGUgdG8gYWRkIGJ1cnN0IGVucXVldWUgYW5kIGRlcXVldWUgZnVuY3Rpb25zIGFzIHdl bGwsIHNvDQo+ID4gd2UgY2FuIHBsdWcgdGhpcyBpbnRvIGEgbWVtcG9vbCBoYW5kbGVyPw0KPiBQ cm9wZXIgYnVyc3QgZW5xdWV1ZSBpcyBkaWZmaWN1bHQgb3IgYXQgbGVhc3Qgbm90IHZlcnkgZWZm aWNpZW50Lg0KPiANCj4gPiAgQmVzaWRlcyB0aGUgbWVtcG9vbCBoYW5kbGVyLCBJIHRoaW5rIHRo ZSBhbGwtb3Itbm90aGluZyBzZW1hbnRpY3MNCj4gPiB3b3VsZCBiZSB1c2VmdWwgZm9yIGFwcGxp Y2F0aW9ucy4gQmVzaWRlcyB0aGF0LCB0aGlzIFJGQyBsb29rcyBnb29kIGF0IGEgaGlnaA0KPiBs ZXZlbC4NCj4gPg0KPiA+IEZvciBhIGNvbXBsZXRlIHN1Ym1pc3Npb24sIGEgZmV3IG1vcmUgY2hh bmdlcyBhcmUgbmVlZGVkOg0KPiA+IC0gQnVpbGRzOiBOZWVkIHRvIGFkZCAnbGZyaW5nJyB0byBs aWIvbWVzb24uYnVpbGQgYW5kIG1rL3J0ZS5hcHAubWsNCj4gPiAtIERvY3VtZW50YXRpb246IG5l ZWQgdG8gdXBkYXRlIHJlbGVhc2Ugbm90ZXMsIGFkZCBhIG5ldyBzZWN0aW9uIGluDQo+ID4gdGhl IHByb2dyYW1tZXIncyBndWlkZSwgYW5kIHVwZGF0ZSB0aGUgZG94eWdlbiBjb25maWd1cmF0aW9u IGZpbGVzDQo+ID4gLSBUZXN0czogVGhpcyBwYXRjaHNldCBzaG91bGQgYWRkIGEgc2V0IG9mIGxm cmluZyB0ZXN0cyBhcyB3ZWxsDQo+ID4NCj4gPiBDb2RlIGNvbW1lbnRzIGZvbGxvdy4NCj4gVGhh bmtzIGZvciB0aGUgcmV2aWV3IGNvbW1lbnRzLCBJIG9ubHkgaGFkIHRpbWUgdG8gbG9vayBhdCBh IGZldyBvZiB0aGVtLiBJDQo+IHdpbGwgcmV0dXJuIHdpdGggbW9yZSBjb21wbGV0ZSBhbnN3ZXJz IGFuZCBhIG5ldyB2ZXJzaW9uIG9mIHRoZSBwYXRjaC4NCj4gDQoNClNvdW5kcyBnb29kLg0KDQo8 c25pcD4NCg0KPiA+ICsvKiBzZWFyY2ggYSByaW5nIGZyb20gaXRzIG5hbWUgKi8NCj4gPiArc3Ry dWN0IHJ0ZV9sZnJpbmcgKg0KPiA+ICtydGVfbGZyaW5nX2xvb2t1cChjb25zdCBjaGFyICpuYW1l KQ0KPiA+ICt7DQo+ID4gKwlzdHJ1Y3QgcnRlX3RhaWxxX2VudHJ5ICp0ZTsNCj4gPiArCXN0cnVj dCBydGVfbGZyaW5nICpyID0gTlVMTDsNCj4gPiArCXN0cnVjdCBydGVfbGZyaW5nX2xpc3QgKnJp bmdfbGlzdDsNCj4gPiArDQo+ID4gKwlyaW5nX2xpc3QgPSBSVEVfVEFJTFFfQ0FTVChydGVfbGZy aW5nX3RhaWxxLmhlYWQsIHJ0ZV9sZnJpbmdfbGlzdCk7DQo+ID4gKw0KPiA+ICsJcnRlX3J3bG9j a19yZWFkX2xvY2soUlRFX0VBTF9UQUlMUV9SV0xPQ0spOw0KPiA+ICsNCj4gPiArCVRBSUxRX0ZP UkVBQ0godGUsIHJpbmdfbGlzdCwgbmV4dCkgew0KPiA+ICsJCXIgPSAoc3RydWN0IHJ0ZV9sZnJp bmcgKikgdGUtPmRhdGE7DQo+ID4gKwkJaWYgKHN0cm5jbXAobmFtZSwgci0+bmFtZSwgUlRFX0xG UklOR19OQU1FU0laRSkgPT0gMCkNCj4gPg0KPiA+IE1pc3NpbmcgYSBOVUxMIHBvaW50ZXIgY2hl Y2sgYmVmb3JlIGRlcmVmZXJlbmNpbmcgJ25hbWUnDQo+IFdoeSBzaG91bGRuJ3QgdGhlIHByb2dy YW0gY3Jhc2ggaWYgc29tZW9uZSBwYXNzZXMgYSBOVUxMIHBvaW50ZXINCj4gcGFyYW1ldGVyPw0K PiBDYWxsZXJzIHdpbGwgYmUgaW50ZXJuYWwsIGV4dGVybmFsIHVzZXJzIHNob3VsZCBiZSBhYmxl IHRvIGNvbnRyb2wgd2hldGhlcg0KPiBOVUxMIGlzIHBhc3NlZCBpbnN0ZWFkIG9mIGEgdmFsaWQg cG9pbnRlci4NCj4gQSBjcmFzaCBhbmQgYSBjb3JlIGR1bXAgaXMgdGhlIGJlc3Qgd2F5IHRvIGRl dGVjdCBhbmQgZGVidWcgZXJyb3JzLg0KDQpJZiB5b3UgdGhpbmsgY3Jhc2hpbmcgaXMgdGhlIGFw cHJvcHJpYXRlIHJlc3BvbnNlLCBydGVfcGFuaWMoKSB3aXRoIGEgZGVzY3JpcHRpdmUgZXJyb3Ig c3RyaW5nIHdvdWxkIGJlIGJldHRlciB0aGFuIGEgc2VnZmF1bHQgYWxvbmUuDQoNCjxzbmlwPg0K DQo+ID4gKy8qKg0KPiA+ICsgKiBSZXR1cm4gdGhlIG51bWJlciBvZiBlbGVtZW50cyB3aGljaCBj YW4gYmUgc3RvcmVkIGluIHRoZSBsZnJpbmcuDQo+ID4gKyAqDQo+ID4gKyAqIEBwYXJhbSByDQo+ ID4gKyAqICAgQSBwb2ludGVyIHRvIHRoZSBsZnJpbmcgc3RydWN0dXJlLg0KPiA+ICsgKiBAcmV0 dXJuDQo+ID4gKyAqICAgVGhlIHVzYWJsZSBzaXplIG9mIHRoZSBsZnJpbmcuDQo+ID4gKyAqLw0K PiA+ICtzdGF0aWMgaW5saW5lIHVuc2lnbmVkIGludA0KPiA+ICtydGVfbGZyaW5nX2dldF9jYXBh Y2l0eShjb25zdCBzdHJ1Y3QgcnRlX2xmcmluZyAqcikgew0KPiA+ICsJcmV0dXJuIHItPnNpemU7 DQo+ID4NCj4gPiBJIGJlbGlldmUgdGhpcyBzaG91bGQgcmV0dXJuIHItPm1hc2ssIHRvIGFjY291 bnQgZm9yIHRoZSBvbmUgdW51c2FibGUNCj4gPiByaW5nIGVudHJ5Lg0KPiANCj4gSSB0aGluayB0 aGlzIGlzIGEgbWlzdGFrZSwgYWxsIHJpbmcgZW50cmllcyBzaG91bGQgYmUgdXNhYmxlLg0KDQpP aywgdGhlbiBkbyB0aGVzZSBjb21tZW50cyBmcm9tIGVsc2V3aGVyZSBpbiB0aGUgaGVhZGVyIG5l ZWQgdG8gYmUgY29ycmVjdGVkPw0KDQoiVGhlIHJlYWwgdXNhYmxlIGxmcmluZyBzaXplIGlzICpj b3VudC0xKiBpbnN0ZWFkIG9mICpjb3VudCogdG8gZGlmZmVyZW50aWF0ZSBhIGZyZWUgbGZyaW5n IGZyb20gYW4gZW1wdHkgbGZyaW5nLiINCg==