From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Laight Subject: RE: [net PATCH v5 6/6] virtio_net: XDP support for adjust_head Date: Fri, 20 Jan 2017 16:59:11 +0000 Message-ID: <063D6719AE5E284EB5DD2968C1650D6DB026921C@AcuExch.aculab.com> References: <20170117221443.20280.62546.stgit@john-Precision-Tower-5810> <20170117222259.20280.24625.stgit@john-Precision-Tower-5810> <20170118171259-mutt-send-email-mst@kernel.org> <40e9a46a-1115-c21a-49f3-fdedb0a34101@redhat.com> <20170119231027-mutt-send-email-mst@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: John Fastabend , "john.r.fastabend@intel.com" , "netdev@vger.kernel.org" , "alexei.starovoitov@gmail.com" , "daniel@iogearbox.net" To: "'Michael S. Tsirkin'" , Jason Wang Return-path: Received: from smtp-out4.electric.net ([192.162.216.186]:57080 "EHLO smtp-out4.electric.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751950AbdATQ72 (ORCPT ); Fri, 20 Jan 2017 11:59:28 -0500 In-Reply-To: <20170119231027-mutt-send-email-mst@kernel.org> Content-Language: en-US Sender: netdev-owner@vger.kernel.org List-ID: RnJvbTogTWljaGFlbCBTLiBUc2lya2luDQo+IFNlbnQ6IDE5IEphbnVhcnkgMjAxNyAyMToxMg0K PiA+IE9uIDIwMTc/MDE/MTg/IDIzOjE1LCBNaWNoYWVsIFMuIFRzaXJraW4gd3JvdGU6DQo+ID4g PiBPbiBUdWUsIEphbiAxNywgMjAxNyBhdCAwMjoyMjo1OVBNIC0wODAwLCBKb2huIEZhc3RhYmVu ZCB3cm90ZToNCj4gPiA+ID4gQWRkIHN1cHBvcnQgZm9yIFhEUCBhZGp1c3QgaGVhZCBieSBhbGxv Y2F0aW5nIGEgMjU2QiBoZWFkZXIgcmVnaW9uDQo+ID4gPiA+IHRoYXQgWERQIHByb2dyYW1zIGNh biBncm93IGludG8uIFRoaXMgaXMgb25seSBlbmFibGVkIHdoZW4gYSBYRFANCj4gPiA+ID4gcHJv Z3JhbSBpcyBsb2FkZWQuDQo+ID4gPiA+DQo+ID4gPiA+IEluIG9yZGVyIHRvIGVuc3VyZSB0aGF0 IHdlIGRvIG5vdCBoYXZlIHRvIHVud2luZCBxdWV1ZSBoZWFkcm9vbSBwdXNoDQo+ID4gPiA+IHF1 ZXVlIHNldHVwIGJlbG93IGJwZl9wcm9nX2FkZC4gSXQgcmVhZHMgYmV0dGVyIHRvIGRvIGEgcHJv ZyByZWYNCj4gPiA+ID4gdW53aW5kIHZzIGFub3RoZXIgcXVldWUgc2V0dXAgY2FsbC4NCj4gPiA+ ID4NCj4gPiA+ID4gQXQgdGhlIG1vbWVudCB0aGlzIGNvZGUgbXVzdCBkbyBhIGZ1bGwgcmVzZXQg dG8gZW5zdXJlIG9sZCBidWZmZXJzDQo+ID4gPiA+IHdpdGhvdXQgaGVhZHJvb20gb24gcHJvZ3Jh bSBhZGQgb3Igd2l0aCBoZWFkcm9vbSBvbiBwcm9ncmFtIHJlbW92YWwNCj4gPiA+ID4gYXJlIG5v dCB1c2VkIGluY29ycmVjdGx5IGluIHRoZSBkYXRhcGF0aC4gSWRlYWxseSB3ZSB3b3VsZCBvbmx5 DQo+ID4gPiA+IGhhdmUgdG8gZGlzYWJsZS9lbmFibGUgdGhlIFJYIHF1ZXVlcyBiZWluZyB1cGRh dGVkIGJ1dCB0aGVyZSBpcyBubw0KPiA+ID4gPiBBUEkgdG8gZG8gdGhpcyBhdCB0aGUgbW9tZW50 IGluIHZpcnRpbyBzbyB1c2UgdGhlIGJpZyBoYW1tZXIuIEluDQo+ID4gPiA+IHByYWN0aWNlIGl0 IGlzIGxpa2VseSBub3QgdGhhdCBiaWcgb2YgYSBwcm9ibGVtIGFzIHRoaXMgd2lsbCBvbmx5DQo+ ID4gPiA+IGhhcHBlbiB3aGVuIFhEUCBpcyBlbmFibGVkL2Rpc2FibGVkIGNoYW5naW5nIHByb2dy YW1zIGRvZXMgbm90DQo+ID4gPiA+IHJlcXVpcmUgdGhlIHJlc2V0LiBUaGVyZSBpcyBzb21lIHJp c2sgdGhhdCB0aGUgZHJpdmVyIG1heSBlaXRoZXINCj4gPiA+ID4gaGF2ZSBhbiBhbGxvY2F0aW9u IGZhaWx1cmUgb3IgZm9yIHNvbWUgcmVhc29uIGZhaWwgdG8gY29ycmVjdGx5DQo+ID4gPiA+IG5l Z290aWF0ZSB3aXRoIHRoZSB1bmRlcmx5aW5nIGJhY2tlbmQgaW4gdGhpcyBjYXNlIHRoZSBkcml2 ZXIgd2lsbA0KPiA+ID4gPiBiZSBsZWZ0IHVuaW5pdGlhbGl6ZWQuIEkgaGF2ZSBub3Qgc2VlbiB0 aGlzIGV2ZXIgaGFwcGVuIG9uIG15IHRlc3QNCj4gPiA+ID4gc3lzdGVtcyBhbmQgZm9yIHdoYXQg aXRzIHdvcnRoIHRoaXMgc2FtZSBmYWlsdXJlIGNhc2UgY2FuIG9jY3VyDQo+ID4gPiA+IGZyb20g cHJvYmUgYW5kIG90aGVyIGNvbnRleHRzIGluIHZpcnRpbyBmcmFtZXdvcmsuDQo+ID4gPiA+DQo+ ID4gPiA+IFNpZ25lZC1vZmYtYnk6IEpvaG4gRmFzdGFiZW5kPGpvaG4uci5mYXN0YWJlbmRAaW50 ZWwuY29tPg0KPiA+ID4gSSd2ZSBiZWVuIHRoaW5raW5nIGFib3V0IGl0IC0gY2FuJ3Qgd2UgZHJv cA0KPiA+ID4gb2xkIGJ1ZmZlcnMgd2l0aG91dCB0aGUgaGVhZCByb29tIHdoaWNoIHdlcmUgcG9z dGVkIGJlZm9yZQ0KPiA+ID4geGRwIGF0dGFjaGVkPw0KPiA+ID4NCj4gPiA+IEF2b2lkaW5nIHRo ZSByZXNldCB3b3VsZCBiZSBtdWNoIG5pY2VyLg0KPiA+ID4NCj4gPiA+IFRob3VnaHRzPw0KPiA+ ID4NCj4gPg0KPiA+IEFzIGJlZW4gZGlzY3Vzc2VkIGJlZm9yZSwgZGV2aWNlIG1heSB1c2UgdGhl bSBpbiB0aGUgc2FtZSB0aW1lIHNvIGl0J3Mgbm90DQo+ID4gc2FmZS4gT3IgZG8geW91IG1lYW4g ZGV0ZWN0IHRoZW0gYWZ0ZXIgeGRwIHdlcmUgc2V0IGFuZCBkcm9wIHRoZSBidWZmZXINCj4gPiB3 aXRob3V0IGhlYWQgcm9vbSwgdGhpcyBsb29rcyBzdWItb3B0aW1hbC4NCj4gPg0KPiA+IFRoYW5r cw0KPiANCj4gWWVzLCB0aGlzIGlzIHdoYXQgSSBtZWFuLiAgV2h5IGlzIHRoaXMgc3Vib3B0aW1h bD8gSXQncyBhIHNpbmdsZSBicmFuY2gNCj4gaW4gY29kZS4gWWVzIHdlIG1pZ2h0IGxvc2Ugc29t ZSBwYWNrZXRzIGJ1dCB0aGUgYmlnIGhhbW1lciBvZiBkZXZpY2UNCj4gcmVzZXQgd2lsbCBsaWtl bHkgbG9zZSBtb3JlLg0KDQpXaHkgbm90IGxlYXZlIGxldCB0aGUgaGFyZHdhcmUgcmVjZWl2ZSBp bnRvIHRoZSAnc21hbGwnIGJ1ZmZlciAod2l0aG91dA0KaGVhZHJvb20pIGFuZCBkbyBhIGNvcHkg d2hlbiBhIGZyYW1lIGlzIHJlY2VpdmVkLg0KUmVwbGFjZSB0aGUgYnVmZmVycyB3aXRoICdiaWcn IG9uZXMgZm9yIHRoZSBuZXh0IHJlY2VpdmUuDQpBIGRhdGEgY29weSBvbiBhIHJpbmcgZnVsbCBv ZiBidWZmZXJzIHdvbid0IHJlYWxseSBiZSBub3RpY2VkLg0KDQoJRGF2aWQNCg0K