From mboxrd@z Thu Jan 1 00:00:00 1970 From: Koichiro Den Subject: Re: [PATCH net-next] virtio-net: invoke zerocopy callback on xmit path if no tx napi Date: Mon, 21 Aug 2017 21:40:11 +0900 Message-ID: <1503319211.8694.3.camel@klaipeden.com> References: <20170819063854.27010-1-den@klaipeden.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: base64 Cc: "Michael S. Tsirkin" , virtualization@lists.linux-foundation.org, Network Development To: Willem de Bruijn Return-path: Received: from sender-of-o52.zoho.com ([135.84.80.217]:21361 "EHLO sender-of-o52.zoho.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752804AbdHUMkT (ORCPT ); Mon, 21 Aug 2017 08:40:19 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: T24gU3VuLCAyMDE3LTA4LTIwIGF0IDE2OjQ5IC0wNDAwLCBXaWxsZW0gZGUgQnJ1aWpuIHdyb3Rl Ogo+IE9uIFNhdCwgQXVnIDE5LCAyMDE3IGF0IDI6MzggQU0sIEtvaWNoaXJvIERlbiA8ZGVuQGts YWlwZWRlbi5jb20+IHdyb3RlOgo+ID4gRmFjaW5nIHRoZSBwb3NzaWJsZSB1bmJvdW5kZWQgZGVs YXkgcmVseWluZyBvbiBmcmVlaW5nIG9uIHhtaXQgcGF0aCwKPiA+IHdlIGFsc28gYmV0dGVyIHRv IGludm9rZSBhbmQgY2xlYXIgdGhlIHVwcGVyIGxheWVyIHplcm9jb3B5IGNhbGxiYWNrCj4gPiBi ZWZvcmVoYW5kIHRvIGtlZXAgdGhlbSBmcm9tIHdhaXRpbmcgZm9yIHVuYm91bmRlZCBkdXJhdGlv biBpbiB2YWluLgo+IAo+IEdvb2QgcG9pbnQuCj4gCj4gPiBGb3IgaW5zdGFuY2UsIHRoaXMgcmVt b3ZlcyB0aGUgcG9zc2libGUgZGVhZGxvY2sgaW4gdGhlIGNhc2UgdGhhdCB0aGUKPiA+IHVwcGVy IGxheWVyIGlzIGEgemVyb2NvcHktZW5hYmxlZCB2aG9zdC1uZXQuCj4gPiBUaGlzIGRvZXMgbm90 IGFwcGx5IGlmIG5hcGlfdHggaXMgZW5hYmxlZCBzaW5jZSBpdCB3aWxsIGJlIGNhbGxlZCBpbgo+ ID4gcmVhc29uYWxlIHRpbWUuCj4gCj4gSW5kZWVkLiBCdHcsIEkgYW0gZ2F0aGVyaW5nIGRhdGEg dG8gZXZlbnR1YWxseSBtYWtlIG5hcGkgdGhlIGRlZmF1bHQKPiBtb2RlLiBCdXQgdGhhdCBpcyB0 YWtpbmcgc29tZSB0aW1lLgpJJ20gbG9va2luZyBmb3J3YXJkIHRvIGl0LiBCdHcgSSdtIGp1c3Qg Z3Vlc3Npbmcgc29tZWhvdyBkZWxheWVkIG5hcGkgZGlzYWJsaW5nCnNlZW1zIHRvIHJlbGlldmUg dGhlIGludGVycnVwdCBjb3N0cyBtdWNoLCB0aG91Z2ggaXQgbWlnaHQgbmVlZCB0byBiZSBzdGF0 ZWZ1bApzbyBzb3VuZHMgYSBiaXQgb2ZmZW5zaXZlLiBUaGF0J3MgdG8gc2F5LCBub3QteWV0LXVz ZWQgb25lcyBhcmUgbm90IG5lY2Vzc2FyaWx5CmdvaW5nIHRvIGJlIHVzZWQgaW4gdGhlIG5lYXIg ZnV0dXJlLCBzbyB3ZSBoYXZlIHRvIGxpbWl0IHRoZSBkZWxheSB3aXRoIHNvbWUKc29ydCBvZiBj b3VudGVyLiBKdXN0IGd1ZXNzaW5nIGFzIGEgdmlydGlvIG5vdmljZSwgc28gcGxzIHRha2UgaXQg d2l0aCBhIGdyYWluCm9mIHNhbHQgOykKPiAKPiA+IAo+ID4gU2lnbmVkLW9mZi1ieTogS29pY2hp cm8gRGVuIDxkZW5Aa2xhaXBlZGVuLmNvbT4KPiA+IC0tLQo+ID4gwqBkcml2ZXJzL25ldC92aXJ0 aW9fbmV0LmMgfCA4ICsrKysrKysrCj4gPiDCoDEgZmlsZSBjaGFuZ2VkLCA4IGluc2VydGlvbnMo KykKPiA+IAo+ID4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvbmV0L3ZpcnRpb19uZXQuYyBiL2RyaXZl cnMvbmV0L3ZpcnRpb19uZXQuYwo+ID4gaW5kZXggNDMwMmYzMTNkOWE3Li5mN2RlYWE1YjdiNTAg MTAwNjQ0Cj4gPiAtLS0gYS9kcml2ZXJzL25ldC92aXJ0aW9fbmV0LmMKPiA+ICsrKyBiL2RyaXZl cnMvbmV0L3ZpcnRpb19uZXQuYwo+ID4gQEAgLTEyOTAsNiArMTI5MCwxNCBAQCBzdGF0aWMgbmV0 ZGV2X3R4X3Qgc3RhcnRfeG1pdChzdHJ1Y3Qgc2tfYnVmZiAqc2tiLAo+ID4gc3RydWN0IG5ldF9k ZXZpY2UgKmRldikKPiA+IAo+ID4gwqDCoMKgwqDCoMKgwqDCoC8qIERvbid0IHdhaXQgdXAgZm9y IHRyYW5zbWl0dGVkIHNrYnMgdG8gYmUgZnJlZWQuICovCj4gPiDCoMKgwqDCoMKgwqDCoMKgaWYg KCF1c2VfbmFwaSkgewo+ID4gK8KgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoGlmIChza2Jf c2hpbmZvKHNrYiktPnR4X2ZsYWdzICYgU0tCVFhfREVWX1pFUk9DT1BZKSB7Cj4gPiArwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoHN0cnVjdCB1YnVmX2luZm8g KnVhcmc7Cj4gPiArwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oHVhcmcgPSBza2Jfc2hpbmZvKHNrYiktPmRlc3RydWN0b3JfYXJnOwo+ID4gK8KgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqBpZiAodWFyZy0+Y2FsbGJhY2spCj4g PiArwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg dWFyZy0+Y2FsbGJhY2sodWFyZywgdHJ1ZSk7Cj4gPiArwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoHNrYl9zaGluZm8oc2tiKS0+ZGVzdHJ1Y3Rvcl9hcmcgPSBO VUxMOwo+ID4gK8KgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqBz a2Jfc2hpbmZvKHNrYiktPnR4X2ZsYWdzICY9IH5TS0JUWF9ERVZfWkVST0NPUFk7Cj4gPiArwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgfQo+IAo+IEluc3RlYWQgb2Ygb3BlbiBjb2Rpbmcs IHRoaXMgY2FuIHVzZSBza2JfemNvcHlfY2xlYXIuCkkgZGlkbid0IG5vdGljZSBpdCwgc2VlbXMg bmVjZXNzYXJ5IGFuZCBzdWZmaWNpZW50LiBQbGVhc2UgbGV0IG1lIHJlcG9zdC4KVGhhbmsgeW91 Lgo+IAo+ID4gwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqBza2Jfb3JwaGFuKHNrYik7 Cj4gPiDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoG5mX3Jlc2V0KHNrYik7Cj4gPiDC oMKgwqDCoMKgwqDCoMKgfQo+ID4gLS0KPiA+IDIuOS40Cj4gPiAKPiA+IA==