From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Wang Subject: Re: [PATCH] vhost_net: use packet weight for rx handler, too Date: Tue, 24 Apr 2018 17:11:49 +0800 Message-ID: References: <11f2a27cee0c660a611af381ac1b68d9526095e3.1524556673.git.pabeni@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Cc: netdev@vger.kernel.org, virtualization@lists.linux-foundation.org, haibinzhang , "Michael S. Tsirkin" To: Paolo Abeni , kvm@vger.kernel.org Return-path: In-Reply-To: <11f2a27cee0c660a611af381ac1b68d9526095e3.1524556673.git.pabeni@redhat.com> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org List-Id: netdev.vger.kernel.org CgpPbiAyMDE45bm0MDTmnIgyNOaXpSAxNjozNCwgUGFvbG8gQWJlbmkgd3JvdGU6Cj4gU2ltaWxh ciB0byBjb21taXQgYTJhYzk5OTA1ZjFlICgidmhvc3QtbmV0OiBzZXQgcGFja2V0IHdlaWdodCBv Zgo+IHR4IHBvbGxpbmcgdG8gMiAqIHZxIHNpemUiKSwgd2UgbmVlZCBhIHBhY2tldC1iYXNlZCBs aW1pdCBmb3IKPiBoYW5kbGVyX3J4LCB0b28gLSBlbHNld2hlcmUsIHVuZGVyIHJ4IGZsb29kIHdp dGggc21hbGwgcGFja2V0cywKPiB0eCBjYW4gYmUgZGVsYXllZCBmb3IgYSB2ZXJ5IGxvbmcgdGlt ZSwgZXZlbiB3aXRob3V0IGJ1c3lwb2xsaW5nLgo+Cj4gVGhlIHBrdCBsaW1pdCBhcHBsaWVkIHRv IGhhbmRsZV9yeCBtdXN0IGJlIHRoZSBzYW1lIGFwcGxpZWQgYnkKPiBoYW5kbGVfdHgsIG9yIHdl IHdpbGwgZ2V0IHVuZmFpciBzY2hlZHVsaW5nIGJldHdlZW4gcnggYW5kIHR4Lgo+IFR5aW5nIHN1 Y2ggbGltaXQgdG8gdGhlIHF1ZXVlIGxlbmd0aCBtYWtlcyBpdCBsZXNzIGVmZmVjdGl2ZSBmb3IK PiBsYXJnZSBxdWV1ZSBsZW5ndGggdmFsdWVzIGFuZCBjYW4gaW50cm9kdWNlIGxhcmdlIHByb2Nl c3MKPiBzY2hlZHVsZXIgbGF0ZW5jaWVzLCBzbyBhIGNvbnN0YW50IHZhbHVlZCBpcyB1c2VkIC0g bGlrZXdpc2UKPiB0aGUgZXhpc3RpbmcgYnl0ZXMgbGltaXQuCj4KPiBUaGUgc2VsZWN0ZWQgbGlt aXQgaGFzIGJlZW4gdmFsaWRhdGVkIHdpdGggUFZQWzFdIHBlcmZvcm1hbmNlCj4gdGVzdCB3aXRo IGRpZmZlcmVudCBxdWV1ZSBzaXplczoKPgo+IHF1ZXVlIHNpemUJCTI1Ngk1MTIJMTAyNAo+Cj4g YmFzZWxpbmUJCTM2NgkzNTQJMzYyCj4gd2VpZ2h0IDEyOAkJNzE1CTcyMwk2NzAKPiB3ZWlnaHQg MjU2CQk3NDAJNzQ1CTczMwo+IHdlaWdodCA1MTIJCTYwMAk0NjAJNTgzCj4gd2VpZ2h0IDEwMjQJ CTQyMwk0MjcJNDE4Cj4KPiBBIHBhY2tldCB3ZWlnaHQgb2YgMjU2IGdpdmVzIHBlZWsgcGVyZm9y bWFuY2VzIGluIHVuZGVyIGFsbCB0aGUKPiB0ZXN0ZWQgc2NlbmFyaW9zLgo+Cj4gTm8gbWVhc3Vy YWJsZSByZWdyZXNzaW9uIGluIHVuaWRpcmVjdGlvbmFsIHBlcmZvcm1hbmNlIHRlc3RzIGhhcwo+ IGJlZW4gZGV0ZWN0ZWQuCj4KPiBbMV0gaHR0cHM6Ly9kZXZlbG9wZXJzLnJlZGhhdC5jb20vYmxv Zy8yMDE3LzA2LzA1L21lYXN1cmluZy1hbmQtY29tcGFyaW5nLW9wZW4tdnN3aXRjaC1wZXJmb3Jt YW5jZS8KPgo+IFNpZ25lZC1vZmYtYnk6IFBhb2xvIEFiZW5pIDxwYWJlbmlAcmVkaGF0LmNvbT4K PiAtLS0KPiAgIGRyaXZlcnMvdmhvc3QvbmV0LmMgfCAxMiArKysrKysrKy0tLS0KPiAgIDEgZmls ZSBjaGFuZ2VkLCA4IGluc2VydGlvbnMoKyksIDQgZGVsZXRpb25zKC0pCj4KPiBkaWZmIC0tZ2l0 IGEvZHJpdmVycy92aG9zdC9uZXQuYyBiL2RyaXZlcnMvdmhvc3QvbmV0LmMKPiBpbmRleCBiYmYz OGJlZmVmYjIuLmM0YjQ5ZmNhNDg3MSAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL3Zob3N0L25ldC5j Cj4gKysrIGIvZHJpdmVycy92aG9zdC9uZXQuYwo+IEBAIC00Niw4ICs0NiwxMCBAQCBNT0RVTEVf UEFSTV9ERVNDKGV4cGVyaW1lbnRhbF96Y29weXR4LCAiRW5hYmxlIFplcm8gQ29weSBUWDsiCj4g ICAjZGVmaW5lIFZIT1NUX05FVF9XRUlHSFQgMHg4MDAwMAo+ICAgCj4gICAvKiBNYXggbnVtYmVy IG9mIHBhY2tldHMgdHJhbnNmZXJyZWQgYmVmb3JlIHJlcXVldWVpbmcgdGhlIGpvYi4KPiAtICog VXNpbmcgdGhpcyBsaW1pdCBwcmV2ZW50cyBvbmUgdmlydHF1ZXVlIGZyb20gc3RhcnZpbmcgcngu ICovCj4gLSNkZWZpbmUgVkhPU1RfTkVUX1BLVF9XRUlHSFQodnEpICgodnEpLT5udW0gKiAyKQo+ ICsgKiBVc2luZyB0aGlzIGxpbWl0IHByZXZlbnRzIG9uZSB2aXJ0cXVldWUgZnJvbSBzdGFydmlu ZyBvdGhlcnMgd2l0aCBzbWFsbAo+ICsgKiBwa3RzLgo+ICsgKi8KPiArI2RlZmluZSBWSE9TVF9O RVRfUEtUX1dFSUdIVCAyNTYKPiAgIAo+ICAgLyogTUFYIG51bWJlciBvZiBUWCB1c2VkIGJ1ZmZl cnMgZm9yIG91dHN0YW5kaW5nIHplcm9jb3B5ICovCj4gICAjZGVmaW5lIFZIT1NUX01BWF9QRU5E IDEyOAo+IEBAIC01ODcsNyArNTg5LDcgQEAgc3RhdGljIHZvaWQgaGFuZGxlX3R4KHN0cnVjdCB2 aG9zdF9uZXQgKm5ldCkKPiAgIAkJCXZob3N0X3plcm9jb3B5X3NpZ25hbF91c2VkKG5ldCwgdnEp Owo+ICAgCQl2aG9zdF9uZXRfdHhfcGFja2V0KG5ldCk7Cj4gICAJCWlmICh1bmxpa2VseSh0b3Rh bF9sZW4gPj0gVkhPU1RfTkVUX1dFSUdIVCkgfHwKPiAtCQkgICAgdW5saWtlbHkoKytzZW50X3Br dHMgPj0gVkhPU1RfTkVUX1BLVF9XRUlHSFQodnEpKSkgewo+ICsJCSAgICB1bmxpa2VseSgrK3Nl bnRfcGt0cyA+PSBWSE9TVF9ORVRfUEtUX1dFSUdIVCkpIHsKPiAgIAkJCXZob3N0X3BvbGxfcXVl dWUoJnZxLT5wb2xsKTsKPiAgIAkJCWJyZWFrOwo+ICAgCQl9Cj4gQEAgLTc2OSw2ICs3NzEsNyBA QCBzdGF0aWMgdm9pZCBoYW5kbGVfcngoc3RydWN0IHZob3N0X25ldCAqbmV0KQo+ICAgCXN0cnVj dCBzb2NrZXQgKnNvY2s7Cj4gICAJc3RydWN0IGlvdl9pdGVyIGZpeHVwOwo+ICAgCV9fdmlydGlv MTYgbnVtX2J1ZmZlcnM7Cj4gKwlpbnQgcmVjdl9wa3RzID0gMDsKPiAgIAo+ICAgCW11dGV4X2xv Y2tfbmVzdGVkKCZ2cS0+bXV0ZXgsIDApOwo+ICAgCXNvY2sgPSB2cS0+cHJpdmF0ZV9kYXRhOwo+ IEBAIC04NzIsNyArODc1LDggQEAgc3RhdGljIHZvaWQgaGFuZGxlX3J4KHN0cnVjdCB2aG9zdF9u ZXQgKm5ldCkKPiAgIAkJaWYgKHVubGlrZWx5KHZxX2xvZykpCj4gICAJCQl2aG9zdF9sb2dfd3Jp dGUodnEsIHZxX2xvZywgbG9nLCB2aG9zdF9sZW4pOwo+ICAgCQl0b3RhbF9sZW4gKz0gdmhvc3Rf bGVuOwo+IC0JCWlmICh1bmxpa2VseSh0b3RhbF9sZW4gPj0gVkhPU1RfTkVUX1dFSUdIVCkpIHsK PiArCQlpZiAodW5saWtlbHkodG90YWxfbGVuID49IFZIT1NUX05FVF9XRUlHSFQpIHx8Cj4gKwkJ ICAgIHVubGlrZWx5KCsrcmVjdl9wa3RzID49IFZIT1NUX05FVF9QS1RfV0VJR0hUKSkgewo+ICAg CQkJdmhvc3RfcG9sbF9xdWV1ZSgmdnEtPnBvbGwpOwo+ICAgCQkJZ290byBvdXQ7Cj4gICAJCX0K ClRoZSBudW1iZXJzIGxvb2tzIGltcHJlc3NpdmUuCgpBY2tlZC1ieTogSmFzb24gV2FuZyA8amFz b3dhbmdAcmVkaGF0LmNvbT4KClRoYW5rcyEKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX18KVmlydHVhbGl6YXRpb24gbWFpbGluZyBsaXN0ClZpcnR1YWxpemF0 aW9uQGxpc3RzLmxpbnV4LWZvdW5kYXRpb24ub3JnCmh0dHBzOi8vbGlzdHMubGludXhmb3VuZGF0 aW9uLm9yZy9tYWlsbWFuL2xpc3RpbmZvL3ZpcnR1YWxpemF0aW9u