From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Wang Subject: Re: [PATCH net-next v2 3/5] virtio_ring: add packed ring support Date: Thu, 8 Nov 2018 16:18:25 +0800 Message-ID: <2d46a41e-bc00-276a-e19a-105c9dffc75a__30737.8997713842$1541664996$gmane$org@redhat.com> References: <20180711022711.7090-1-tiwei.bie@intel.com> <20180711022711.7090-4-tiwei.bie@intel.com> <20181107123933-mutt-send-email-mst@kernel.org> <20181108013759.GA20591@debian> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20181108013759.GA20591@debian> 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 To: Tiwei Bie , "Michael S. Tsirkin" Cc: virtio-dev@lists.oasis-open.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, wexu@redhat.com List-Id: virtualization@lists.linuxfoundation.org Ck9uIDIwMTgvMTEvOCDkuIrljYg5OjM4LCBUaXdlaSBCaWUgd3JvdGU6Cj4+PiArCj4+PiArCWlm ICh2cS0+dnEubnVtX2ZyZWUgPCBkZXNjc191c2VkKSB7Cj4+PiArCQlwcl9kZWJ1ZygiQ2FuJ3Qg YWRkIGJ1ZiBsZW4gJWkgLSBhdmFpbCA9ICVpXG4iLAo+Pj4gKwkJCSBkZXNjc191c2VkLCB2cS0+ dnEubnVtX2ZyZWUpOwo+Pj4gKwkJLyogRklYTUU6IGZvciBoaXN0b3JpY2FsIHJlYXNvbnMsIHdl IGZvcmNlIGEgbm90aWZ5IGhlcmUgaWYKPj4+ICsJCSAqIHRoZXJlIGFyZSBvdXRnb2luZyBwYXJ0 cyB0byB0aGUgYnVmZmVyLiAgUHJlc3VtYWJseSB0aGUKPj4+ICsJCSAqIGhvc3Qgc2hvdWxkIHNl cnZpY2UgdGhlIHJpbmcgQVNBUC4gKi8KPj4gSSBkb24ndCB0aGluayB3ZSBoYXZlIGEgcmVhc29u IHRvIGRvIHRoaXMgZm9yIHBhY2tlZCByaW5nLgo+PiBObyBoaXN0b3JpY2FsIGJhZ2dhZ2UgdGhl cmUsIHJpZ2h0Pwo+IEJhc2VkIG9uIHRoZSBvcmlnaW5hbCBjb21taXQgbG9nLCBpdCBzZWVtcyB0 aGF0IHRoZSBub3RpZnkgaGVyZQo+IGlzIGp1c3QgYW4gIm9wdGltaXphdGlvbiIuIEJ1dCBJIGRv bid0IHF1aXRlIHVuZGVyc3RhbmQgd2hhdCBkb2VzCj4gdGhlICJ0aGUgaGV1cmlzdGljcyB3aGlj aCBLVk0gdXNlcyIgcmVmZXIgdG8uIElmIGl0J3Mgc2FmZSB0byBkcm9wCj4gdGhpcyBpbiBwYWNr ZWQgcmluZywgSSdkIGxpa2UgdG8gZG8gaXQuCgoKQWNjb3JkaW5nIHRvIHRoZSBjb21taXQgbG9n LCBpdCBzZWVtcyBsaWtlIGEgd29ya2Fyb3VuZCBvZiBsZ3Vlc3QgCm5ldHdvcmtpbmcgYmFja2Vu ZC4gSSBhZ3JlZSB0byBkcm9wIGl0LCB3ZSBzaG91bGQgbm90IGhhdmUgc3VjaCBidXJkZW4uCgpC dXQgd2Ugc2hvdWxkIG5vdGljZSB0aGF0LCB3aXRoIHRoaXMgcmVtb3ZlZCwgdGhlIGNvbXBhcmUg YmV0d2VlbiBwYWNrZWQgCnZzIHNwbGl0IGlzIGtpbmQgb2YgdW5mYWlyLiBDb25zaWRlciB0aGUg cmVtb3ZhbCBvZiBsZ3Vlc3Qgc3VwcG9ydCAKcmVjZW50bHksIG1heWJlIHdlIGNhbiBkcm9wIHRo aXMgZm9yIHNwbGl0IHJpbmcgYXMgd2VsbD8KClRoYW5rcwoKCj4KPiBjb21taXQgNDQ2NTNlYWUx NDA3Zjc5ZGZmNmY1MmZjZjU5NGFlODRjYjE2NWVjNAo+IEF1dGhvcjogUnVzdHkgUnVzc2VsbDxy dXN0eUBydXN0Y29ycC5jb20uYXU+Cj4gRGF0ZTogICBGcmkgSnVsIDI1IDEyOjA2OjA0IDIwMDgg LTA1MDAKPgo+ICAgICAgdmlydGlvOiBkb24ndCBhbHdheXMgZm9yY2UgYSBub3RpZmljYXRpb24g d2hlbiByaW5nIGlzIGZ1bGwKPiAgICAgIAo+ICAgICAgV2UgZm9yY2Ugbm90aWZpY2F0aW9uIHdo ZW4gdGhlIHJpbmcgaXMgZnVsbCwgZXZlbiBpZiB0aGUgaG9zdCBoYXMKPiAgICAgIGluZGljYXRl ZCBpdCBkb2Vzbid0IHdhbnQgdG8ga25vdy4gIFRoaXMgc2VlbWVkIGxpa2UgYSBnb29kIGlkZWEg YXQKPiAgICAgIHRoZSB0aW1lOiBpZiB3ZSBmaWxsIHRoZSB0cmFuc21pdCByaW5nLCB3ZSBzaG91 bGQgdGVsbCB0aGUgaG9zdAo+ICAgICAgaW1tZWRpYXRlbHkuCj4gICAgICAKPiAgICAgIFVuZm9y dHVuYXRlbHkgdGhpcyBsb2dpYyBhbHNvIGFwcGxpZXMgdG8gdGhlIHJlY2VpdmluZyByaW5nLCB3 aGljaCBpcwo+ICAgICAgcmVmaWxsZWQgY29uc3RhbnRseS4gIFdlIHNob3VsZCBpbnRyb2R1Y2Ug cmVhbCBub3RpZmljYXRpb24gdGhlc2hvbGRzCj4gICAgICB0byByZXBsYWNlIHRoaXMgbG9naWMu ICBNZWFud2hpbGUsIHJlbW92aW5nIHRoZSBsb2dpYyBhbHRvZ2V0aGVyIGJyZWFrcwo+ICAgICAg dGhlIGhldXJpc3RpY3Mgd2hpY2ggS1ZNIHVzZXMsIHNvIHdlIHVzZSBhIGhhY2s6IG9ubHkgbm90 aWZ5IGlmIHRoZXJlIGFyZQo+ICAgICAgb3V0Z29pbmcgcGFydHMgb2YgdGhlIG5ldyBidWZmZXIu Cj4gICAgICAKPiAgICAgIEhlcmUgYXJlIHRoZSBudW1iZXIgb2YgZXhpdHMgd2l0aCBsZ3Vlc3Qn cyBjcmFwcHkgbmV0d29yayBpbXBsZW1lbnRhdGlvbjoKPiAgICAgIEJlZm9yZToKPiAgICAgICAg ICAgICAgbmV0d29yayB4bWl0IDc4NTkwNTEgcmVjdiAyMzY0MjAKPiAgICAgIEFmdGVyOgo+ICAg ICAgICAgICAgICBuZXR3b3JrIHhtaXQgNzg1ODYxMCByZWN2IDExODEzNgo+ICAgICAgCj4gICAg ICBTaWduZWQtb2ZmLWJ5OiBSdXN0eSBSdXNzZWxsPHJ1c3R5QHJ1c3Rjb3JwLmNvbS5hdT4KPgo+ IGRpZmYgLS1naXQgYS9kcml2ZXJzL3ZpcnRpby92aXJ0aW9fcmluZy5jIGIvZHJpdmVycy92aXJ0 aW8vdmlydGlvX3JpbmcuYwo+IGluZGV4IDcyYmY4YmMwOTAxNC4uMjFkOWE2Mjc2N2FmIDEwMDY0 NAo+IC0tLSBhL2RyaXZlcnMvdmlydGlvL3ZpcnRpb19yaW5nLmMKPiArKysgYi9kcml2ZXJzL3Zp cnRpby92aXJ0aW9fcmluZy5jCj4gQEAgLTg3LDggKzg3LDExIEBAIHN0YXRpYyBpbnQgdnJpbmdf YWRkX2J1ZihzdHJ1Y3QgdmlydHF1ZXVlICpfdnEsCj4gICAJaWYgKHZxLT5udW1fZnJlZSA8IG91 dCArIGluKSB7Cj4gICAJCXByX2RlYnVnKCJDYW4ndCBhZGQgYnVmIGxlbiAlaSAtIGF2YWlsID0g JWlcbiIsCj4gICAJCQkgb3V0ICsgaW4sIHZxLT5udW1fZnJlZSk7Cj4gLQkJLyogV2Ugbm90aWZ5 KmV2ZW4gaWYqICBWUklOR19VU0VEX0ZfTk9fTk9USUZZIGlzIHNldCBoZXJlLiAqLwo+IC0JCXZx LT5ub3RpZnkoJnZxLT52cSk7Cj4gKwkJLyogRklYTUU6IGZvciBoaXN0b3JpY2FsIHJlYXNvbnMs IHdlIGZvcmNlIGEgbm90aWZ5IGhlcmUgaWYKPiArCQkgKiB0aGVyZSBhcmUgb3V0Z29pbmcgcGFy dHMgdG8gdGhlIGJ1ZmZlci4gIFByZXN1bWFibHkgdGhlCj4gKwkJICogaG9zdCBzaG91bGQgc2Vy dmljZSB0aGUgcmluZyBBU0FQLiAqLwo+ICsJCWlmIChvdXQpCj4gKwkJCXZxLT5ub3RpZnkoJnZx LT52cSk7Cj4gICAJCUVORF9VU0UodnEpOwo+ICAgCQlyZXR1cm4gLUVOT1NQQzsKPiAgIAl9Cj4K PgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpWaXJ0dWFs aXphdGlvbiBtYWlsaW5nIGxpc3QKVmlydHVhbGl6YXRpb25AbGlzdHMubGludXgtZm91bmRhdGlv bi5vcmcKaHR0cHM6Ly9saXN0cy5saW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4vbGlzdGluZm8v dmlydHVhbGl6YXRpb24=