From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Duyck, Alexander H" Subject: Re: XDP redirect measurements, gotchas and tracepoints Date: Tue, 22 Aug 2017 18:30:21 +0000 Message-ID: <1503426617.2434.5.camel@intel.com> References: <20170821212506.1cb0d5d6@redhat.com> <599C7530.2010405@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: "pstaszewski@itcare.pl" , "netdev@vger.kernel.org" , "xdp-newbies@vger.kernel.org" , "andy@greyhouse.net" , "borkmann@iogearbox.net" To: "john.fastabend@gmail.com" , "brouer@redhat.com" , "michael.chan@broadcom.com" Return-path: Received: from mga02.intel.com ([134.134.136.20]:65376 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751753AbdHVSaY (ORCPT ); Tue, 22 Aug 2017 14:30:24 -0400 In-Reply-To: <599C7530.2010405@gmail.com> Content-Language: en-US Content-ID: <35592A9F08C1AB408F401453791BADC0@intel.com> Sender: netdev-owner@vger.kernel.org List-ID: T24gVHVlLCAyMDE3LTA4LTIyIGF0IDExOjE3IC0wNzAwLCBKb2huIEZhc3RhYmVuZCB3cm90ZToN Cj4gT24gMDgvMjIvMjAxNyAxMTowMiBBTSwgTWljaGFlbCBDaGFuIHdyb3RlOg0KPiA+IE9uIE1v biwgQXVnIDIxLCAyMDE3IGF0IDEyOjI1IFBNLCBKZXNwZXIgRGFuZ2FhcmQgQnJvdWVyDQo+ID4g PGJyb3VlckByZWRoYXQuY29tPiB3cm90ZToNCj4gPiA+IA0KPiA+ID4gSSdiZSBiZWVuIHBsYXlp bmcgd2l0aCB0aGUgbGF0ZXN0IFhEUF9SRURJUkVDVCBmZWF0dXJlLCB0aGF0IHdhcw0KPiA+ID4g YWNjZXB0ZWQgaW4gbmV0LW5leHQgKGZvciBpeGdiZSksIHNlZSBtZXJnZSBjb21taXRbMV0uDQo+ ID4gPiAgWzFdIGh0dHBzOi8vZ2l0Lmtlcm5lbC5vcmcvZGF2ZW0vbmV0LW5leHQvYy82MDkzZWMy ZGMzMQ0KPiA+ID4gDQo+ID4gDQo+ID4gSnVzdCBjYXRjaGluZyBvbiBYRFBfUkVESVJFQ1QgYW5k IEkgaGF2ZSBhIHZlcnkgYmFzaWMgcXVlc3Rpb24uICBUaGUNCj4gPiBpbmdyZXNzIGRldmljZSBw YXNzZXMgdGhlIFhEUCBidWZmZXIgdG8gdGhlIGVncmVzcyBkZXZpY2UgZm9yIFhEUA0KPiA+IHJl ZGlyZWN0IHRyYW5zbWlzc2lvbi4gIFdoZW4gdGhlIGVncmVzcyBkZXZpY2UgaGFzIHRyYW5zbWl0 dGVkIHRoZQ0KPiA+IHBhY2tldCwgaXMgaXQgc3VwcG9zZWQgdG8ganVzdCBmcmVlIHRoZSBidWZm ZXI/ICBPciBpcyBpdCBzdXBwb3NlZCB0bw0KPiA+IGJlIHJlY3ljbGVkPw0KPiA+IA0KPiA+IElu IFhEUF9UWCwgdGhlIGJ1ZmZlciBpcyByZWN5Y2xlZCBiYWNrIHRvIHRoZSByeCByaW5nLg0KPiA+ IA0KPiANCj4gV2l0aCBYRFBfUkVESVJFQ1Qgd2UgbXVzdCAianVzdCBmcmVlIHRoZSBidWZmZXIi IGluIGl4Z2JlIHRoaXMgbWVhbnMNCj4gcGFnZV9mcmFnX2ZyZWUoKSBvbiB0aGUgZGF0YS4gVGhl cmUgaXMgbm8gd2F5IHRvIGtub3cgd2hlcmUgdGhlIHhkcA0KPiBidWZmZXIgY2FtZSBmcm9tIGl0 IGNvdWxkIGJlIGEgZGlmZmVyZW50IE5JQyBmb3IgZXhhbXBsZS4NCj4gDQo+IEhvd2V2ZXIgd2l0 aCBob3cgaXhnYmUgaXMgY29kZWQgdXAgcmVjeWNsaW5nIHdpbGwgd29yayBhcyBsb25nIGFzDQo+ IHRoZSBtZW1vcnkgaXMgZnJlZSdkIGJlZm9yZSB0aGUgZHJpdmVyIHJpbmcgdHJpZXMgdG8gdXNl IGl0IGFnYWluLiBJbg0KPiBub3JtYWwgdXNhZ2UgdGhpcyBzaG91bGQgYmUgdGhlIGNhc2UuIEFu ZCBpZiB3ZSBhcmUgb3Zlci1ydW5uaW5nIGEgZGV2aWNlDQo+IGl0IGRvZXNuJ3QgcmVhbGx5IGh1 cnQgdG8gc2xvdyBkb3duIHRoZSBzZW5kZXIgYSBiaXQuDQo+IA0KPiBJIHRoaW5rIHRoaXMgaXMg YSBwcmV0dHkgZ29vZCBtb2RlbCwgd2UgY291bGQgcHJvYmFibHkgcHJvdmlkZSBhIHNldA0KPiBv ZiBBUElzIGZvciBkcml2ZXJzIHRvIHVzZSBzbyB0aGF0IHdlIGdldCBzb21lIGNvbnNpc3RlbmN5 IGFjcm9zcw0KPiB2ZW5kb3JzIGhlcmUsIGFsYSBKZXNwZXIncyBwYWdlIHBvb2wgaWRlYXMuDQo+ IA0KPiAoK0FsZXgsIGZvciBpeGdiZSBkZXRhaWxzKQ0KPiANCj4gVGhhbmtzLA0KPiBKb2huDQoN CkkgdGhpbmsgeW91IHByZXR0eSBtdWNoIGNvdmVyZWQgdGhlIGlubmVyIHdvcmtpbmdzIGZvciB0 aGUgaXhnYmUgYml0cy4NCg0KVGhlIG9ubHkgcGllY2UgSSB3b3VsZCBhZGQgaXMgdGhhdCB0aGUg cmVjeWNsaW5nIHRyaWNrIG5vcm1hbGx5IG9ubHkNCndvcmtzIGlmIHRoZSBzYW1lIGludGVyZmFj ZS9kcml2ZXIgaXMgZG9pbmcgYm90aCB0aGUgVHggYW5kIHRoZSBSeC4gVGhlDQpyZWRpcmVjdCBj b2RlIGNhbm5vdCBhc3N1bWUgdGhhdCBpcyB0aGUgY2FzZSBhbmQgdGhhdCBpcyB0aGUgcmVhc29u IHdoeQ0KaXQgbXVzdCBhbHdheXMgYmUgZnJlZWluZyB0aGUgdHJhZmZpYyBvbiBjbGVhbi11cC4N Cg0KLSBBbGV4