From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Wang Subject: Re: [PATCH net-next V2 6/8] vhost: packed ring support Date: Thu, 18 Oct 2018 10:44:36 +0800 Message-ID: References: <1531711691-6769-1-git-send-email-jasowang@redhat.com> <1531711691-6769-7-git-send-email-jasowang@redhat.com> <20181012143244.GA28400@debian> <20181012131812-mutt-send-email-mst@kernel.org> <447f47fa-32dd-a408-dd81-13a9839e0748@redhat.com> <20181014224208-mutt-send-email-mst@kernel.org> <20181015062241-mutt-send-email-mst@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Cc: kvm@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, maxime.coquelin@redhat.com, wexu@redhat.com To: "Michael S. Tsirkin" Return-path: In-Reply-To: <20181015062241-mutt-send-email-mst@kernel.org> 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 Ck9uIDIwMTgvMTAvMTUg5LiL5Y2INjoyNSwgTWljaGFlbCBTLiBUc2lya2luIHdyb3RlOgo+IE9u IE1vbiwgT2N0IDE1LCAyMDE4IGF0IDEwOjUxOjA2QU0gKzA4MDAsIEphc29uIFdhbmcgd3JvdGU6 Cj4+IE9uIDIwMTjlubQxMOaciDE15pelIDEwOjQzLCBNaWNoYWVsIFMuIFRzaXJraW4gd3JvdGU6 Cj4+PiBPbiBNb24sIE9jdCAxNSwgMjAxOCBhdCAxMDoyMjozM0FNICswODAwLCBKYXNvbiBXYW5n IHdyb3RlOgo+Pj4+IE9uIDIwMTjlubQxMOaciDEz5pelIDAxOjIzLCBNaWNoYWVsIFMuIFRzaXJr aW4gd3JvdGU6Cj4+Pj4+IE9uIEZyaSwgT2N0IDEyLCAyMDE4IGF0IDEwOjMyOjQ0UE0gKzA4MDAs IFRpd2VpIEJpZSB3cm90ZToKPj4+Pj4+IE9uIE1vbiwgSnVsIDE2LCAyMDE4IGF0IDExOjI4OjA5 QU0gKzA4MDAsIEphc29uIFdhbmcgd3JvdGU6Cj4+Pj4+PiBbLi4uXQo+Pj4+Pj4+IEBAIC0xMzY3 LDEwICsxMzk3LDQ4IEBAIGxvbmcgdmhvc3RfdnJpbmdfaW9jdGwoc3RydWN0IHZob3N0X2RldiAq ZCwgdW5zaWduZWQgaW50IGlvY3RsLCB2b2lkIF9fdXNlciAqYXJnCj4+Pj4+Pj4gICAgIAkJdnEt Pmxhc3RfYXZhaWxfaWR4ID0gcy5udW07Cj4+Pj4+Pj4gICAgIAkJLyogRm9yZ2V0IHRoZSBjYWNo ZWQgaW5kZXggdmFsdWUuICovCj4+Pj4+Pj4gICAgIAkJdnEtPmF2YWlsX2lkeCA9IHZxLT5sYXN0 X2F2YWlsX2lkeDsKPj4+Pj4+PiArCQlpZiAodmhvc3RfaGFzX2ZlYXR1cmUodnEsIFZJUlRJT19G X1JJTkdfUEFDS0VEKSkgewo+Pj4+Pj4+ICsJCQl2cS0+bGFzdF9hdmFpbF93cmFwX2NvdW50ZXIg PSB3cmFwX2NvdW50ZXI7Cj4+Pj4+Pj4gKwkJCXZxLT5hdmFpbF93cmFwX2NvdW50ZXIgPSB2cS0+ bGFzdF9hdmFpbF93cmFwX2NvdW50ZXI7Cj4+Pj4+Pj4gKwkJfQo+Pj4+Pj4+ICAgICAJCWJyZWFr Owo+Pj4+Pj4+ICAgICAJY2FzZSBWSE9TVF9HRVRfVlJJTkdfQkFTRToKPj4+Pj4+PiAgICAgCQlz LmluZGV4ID0gaWR4Owo+Pj4+Pj4+ICAgICAJCXMubnVtID0gdnEtPmxhc3RfYXZhaWxfaWR4Owo+ Pj4+Pj4+ICsJCWlmICh2aG9zdF9oYXNfZmVhdHVyZSh2cSwgVklSVElPX0ZfUklOR19QQUNLRUQp KQo+Pj4+Pj4+ICsJCQlzLm51bSB8PSB2cS0+bGFzdF9hdmFpbF93cmFwX2NvdW50ZXIgPDwgMzE7 Cj4+Pj4+Pj4gKwkJaWYgKGNvcHlfdG9fdXNlcihhcmdwLCAmcywgc2l6ZW9mKHMpKSkKPj4+Pj4+ PiArCQkJciA9IC1FRkFVTFQ7Cj4+Pj4+Pj4gKwkJYnJlYWs7Cj4+Pj4+Pj4gKwljYXNlIFZIT1NU X1NFVF9WUklOR19VU0VEX0JBU0U6Cj4+Pj4+Pj4gKwkJLyogTW92aW5nIGJhc2Ugd2l0aCBhbiBh Y3RpdmUgYmFja2VuZD8KPj4+Pj4+PiArCQkgKiBZb3UgZG9uJ3Qgd2FudCB0byBkbyB0aGF0Lgo+ Pj4+Pj4+ICsJCSAqLwo+Pj4+Pj4+ICsJCWlmICh2cS0+cHJpdmF0ZV9kYXRhKSB7Cj4+Pj4+Pj4g KwkJCXIgPSAtRUJVU1k7Cj4+Pj4+Pj4gKwkJCWJyZWFrOwo+Pj4+Pj4+ICsJCX0KPj4+Pj4+PiAr CQlpZiAoY29weV9mcm9tX3VzZXIoJnMsIGFyZ3AsIHNpemVvZihzKSkpIHsKPj4+Pj4+PiArCQkJ ciA9IC1FRkFVTFQ7Cj4+Pj4+Pj4gKwkJCWJyZWFrOwo+Pj4+Pj4+ICsJCX0KPj4+Pj4+PiArCQlp ZiAodmhvc3RfaGFzX2ZlYXR1cmUodnEsIFZJUlRJT19GX1JJTkdfUEFDS0VEKSkgewo+Pj4+Pj4+ ICsJCQl3cmFwX2NvdW50ZXIgPSBzLm51bSA+PiAzMTsKPj4+Pj4+PiArCQkJcy5udW0gJj0gfigx IDw8IDMxKTsKPj4+Pj4+PiArCQl9Cj4+Pj4+Pj4gKwkJaWYgKHMubnVtID4gMHhmZmZmKSB7Cj4+ Pj4+Pj4gKwkJCXIgPSAtRUlOVkFMOwo+Pj4+Pj4+ICsJCQlicmVhazsKPj4+Pj4+PiArCQl9Cj4+ Pj4+PiBEbyB3ZSB3YW50IHRvIHB1dCB3cmFwX2NvdW50ZXIgYXQgYml0IDE1Pwo+Pj4+PiBJIHRo aW5rIEkgc2Vjb25kIHRoYXQgLSBzZWVtcyB0byBiZSBjb25zaXN0ZW50IHdpdGgKPj4+Pj4gZS5n LiBldmVudCBzdXBwcmVzc2lvbiBzdHJ1Y3R1cmUgYW5kIHRoZSBwcm9wb3NlZAo+Pj4+PiBleHRl bnNpb24gdG8gZHJpdmVyIG5vdGlmaWNhdGlvbnMuCj4+Pj4gT2ssIEkgYXNzdW1lcyBwYWNrZWQg dmlydHF1ZXVlIHN1cHBvcnQgNjRLIGJ1dCBsb29rcyBub3QuIEkgY2FuIGNoYW5nZSBpdCB0bwo+ Pj4+IGJpdCAxNSBhbmQgR0VUX1ZSSU5HX0JBU0UgbmVlZCB0byBiZSBjaGFuZ2VkIGFzIHdlbGwu Cj4+Pj4KPj4+Pj4+IElmIHB1dCB3cmFwX2NvdW50ZXIgYXQgYml0IDMxLCB0aGUgY2hlY2sgKHMu bnVtID4gMHhmZmZmKQo+Pj4+Pj4gd29uJ3QgYmUgYWJsZSB0byBjYXRjaCB0aGUgaWxsZWdhbCBp bmRleCAweDgwMDB+MHhmZmZmIGZvcgo+Pj4+Pj4gcGFja2VkIHJpbmcuCj4+Pj4+Pgo+Pj4+IERv IHdlIG5lZWQgdG8gY2xhcmlmeSB0aGlzIGluIHRoZSBzcGVjPwo+Pj4gSXNuJ3QgdGhpcyBhbGwg aW50ZXJuYWwgdmhvc3Qgc3R1ZmY/Cj4+IEkgbWVhbnQgdGhlIGlsbGVnYWwgaW5kZXggMHg4MDAw LTB4ZmZmZi4KPiBJdCBkb2VzIHNheSBwYWNrZWQgdmlydHF1ZXVlcyBzdXBwb3J0IHVwIHRvIDIg MTUgZW50cmllcyBlYWNoLgo+Cj4gQnV0IHllcyB3ZSBjYW4gYWRkIGEgcmVxdWlyZW1lbnQgdGhh dCBkZXZpY2VzIGRvIG5vdCBleHBvc2UKPiBsYXJnZXIgcmluZ3MuIFNwbGl0IGRvZXMgbm90IHN1 cHBvcnQgMioqMTYgZWl0aGVyLCByaWdodD8KPiBXaXRoIDIqKjE2IGVudGllcyBhdmFpbCBpbmRl eCBiZWNvbWVzIDAgYW5kIHJpbmcgbG9va3MgZW1wdHkuCj4KClllcywgc28gaXQncyBiZXR0ZXIg dG8gY2xhcmlmeSB0aGlzIGluIHRoZSBzcGVjLgoKVGhhbmtzCgoKX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX18KVmlydHVhbGl6YXRpb24gbWFpbGluZyBsaXN0 ClZpcnR1YWxpemF0aW9uQGxpc3RzLmxpbnV4LWZvdW5kYXRpb24ub3JnCmh0dHBzOi8vbGlzdHMu bGludXhmb3VuZGF0aW9uLm9yZy9tYWlsbWFuL2xpc3RpbmZvL3ZpcnR1YWxpemF0aW9u