From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Samudrala, Sridhar" Subject: Re: [virtio-dev] Re: [RFC PATCH net-next v2 2/2] virtio_net: Extend virtio to use VF datapath when available Date: Fri, 26 Jan 2018 15:30:35 -0800 Message-ID: <5fa8c6c6-4a94-91fa-fdbb-ee7b624d703f@intel.com> References: <1515736720-39368-1-git-send-email-sridhar.samudrala@intel.com> <1515736720-39368-3-git-send-email-sridhar.samudrala@intel.com> <20180122233205-mutt-send-email-mst@kernel.org> <20180124004556-mutt-send-email-mst@kernel.org> <731db0a0-85e7-a88e-6e0e-c540086347b5@intel.com> <20180127000831-mutt-send-email-mst@kernel.org> <20180126144704.6e1a9628@cakuba.netronome.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Cc: Alexander Duyck , virtio-dev@lists.oasis-open.org, Netdev , virtualization@lists.linux-foundation.org, Siwei Liu , David Miller To: Jakub Kicinski , "Michael S. Tsirkin" Return-path: In-Reply-To: <20180126144704.6e1a9628@cakuba.netronome.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 Ck9uIDEvMjYvMjAxOCAyOjQ3IFBNLCBKYWt1YiBLaWNpbnNraSB3cm90ZToKPiBPbiBTYXQsIDI3 IEphbiAyMDE4IDAwOjE0OjIwICswMjAwLCBNaWNoYWVsIFMuIFRzaXJraW4gd3JvdGU6Cj4+IE9u IEZyaSwgSmFuIDI2LCAyMDE4IGF0IDAxOjQ2OjQyUE0gLTA4MDAsIFNpd2VpIExpdSB3cm90ZToK Pj4+PiBhbmQgdGhlIFZNIGlzIG5vdCBleHBlY3RlZCB0byBkbyBhbnkgdHVuaW5nL29wdGltaXph dGlvbnMgb24gdGhlIFZGIGRyaXZlcgo+Pj4+IGRpcmVjdGx5LAo+Pj4+IGkgdGhpbmsgdGhlIGN1 cnJlbnQgcGF0Y2ggdGhhdCBmb2xsb3dzIHRoZSBuZXR2c2MgbW9kZWwgb2YgMiBuZXRkZXZzKHZp cnRpbwo+Pj4+IGFuZCB2Zikgc2hvdWxkCj4+Pj4gd29yayBmaW5lLgo+Pj4gT0suIEZvciB5b3Vy IHVzZSBjYXNlIHRoYXQncyBmaW5lLiBCdXQgdGhhdCdzIHRvbyBzcGVjaWZpYyBzY2VuYXJpbwo+ Pj4gd2l0aCBsb3RzIG9mIHJlc3RyaWN0aW9ucyBJTUhPLCBwZXJoYXBzIHZlcnkgZmV3IHVzZXJz IHdpbGwgYmVuZWZpdAo+Pj4gZnJvbSBpdCwgSSdtIG5vdCBzdXJlLiBJZiB5b3UncmUgdW53aWxs aW5nIHRvIG1vdmUgdG93YXJkcyBpdCwgd2UnZAo+Pj4gdGFrZSB0aGlzIG9uZSBhbmQgY29tZSBi YWNrIHdpdGggYSBnZW5lcmljIHNvbHV0aW9uIHRoYXQgaXMgYWJsZSB0bwo+Pj4gYWRkcmVzcyBn ZW5lcmFsIHVzZSBjYXNlcyBmb3IgVkYvUFQgbGl2ZSBtaWdyYXRpb24gLgo+PiBJIHRoaW5rIHRo YXQncyBhIGZpbmUgYXBwcm9hY2guIFNjcmF0Y2ggeW91ciBvd24gaXRjaCEgIEkgaW1hZ2luZSBh IHZlcnkKPj4gZ2VuZXJpYyB2aXJ0aW8tc3dpdGNoZGV2IHByb3ZpZGluZyBob3N0IHJvdXRpbmcg aW5mbyB0byBndWVzdHMgY291bGQKPj4gYWRkcmVzcyBsb3RzIG9mIHVzZWNhc2VzLiBBIGRyaXZl ciBjb3VsZCBiaW5kIHRvIHRoYXQgb25lIGFuZCBlbnNsYXZlCj4+IGFyYml0cmFyeSBvdGhlciBk ZXZpY2VzLiAgU291bmRzIHJlYXNvbmFibGUuCj4+Cj4+IEJ1dCBnaXZlbiB0aGUgZnVuZGFtZW50 YWwgaWRlYSBvZiBhIGZhaWxvdmVyIHdhcyBmbG9hdGVkIGF0IGxlYXN0IGFzCj4+IGVhcmx5IGFz IDIwMTMsIGFuZCBtYWRlIDAgcHJvZ3Jlc3Mgc2luY2UgcHJlY2lzZWx5IGJlY2F1c2UgaXQga2Vw dAo+PiB0cnlpbmcgdG8gYWRkcmVzcyBtb3JlIGFuZCBtb3JlIGZlYXR1cmVzLCBhbmQgZ2l2ZW4g bmV0dnNjIGlzIGFscmVhZHkKPj4gdXNpbmcgdGhlIGJhc2ljIHNvbHV0aW9uIHdpdGggc29tZSBz dWNjZXNzLCBJJ20gbm90IGluY2xpbmVkIHRvIGJsb2NrCj4+IHRoaXMgc3BlY2lmaWMgZWZmb3J0 IHdhaXRpbmcgZm9yIHRoZSBnZW5lcmljIG9uZS4KPiBJIHRoaW5rIHRoZXJlIGlzIGFuIGFncmVl bWVudCB0aGF0IHRoZSBleHRyYSBuZXRkZXYgd2lsbCBiZSB1c2VmdWwgZm9yCj4gbW9yZSBhZHZh bmNlZCB1c2UgY2FzZXMsIGFuZCBpcyBnZW5lcmFsbHkgcHJlZmVyYWJsZS4gIFdoYXQgaXMgdGhl Cj4gYXJndW1lbnQgZm9yIG5vdCBkb2luZyB0aGF0IGZyb20gdGhlIHN0YXJ0PyAgSWYgaXQgd2Fz IG1hZGUgSSBtdXN0IGhhdmUKPiBtaXNzZWQgaXQuICBJcyBpdCBqdXN0IHVud2lsbGluZ25lc3Mg dG8gd3JpdGUgdGhlIGV4dHJhIDMwMCBsaW5lcyBvZgo+IGNvZGU/ICBTb3VuZHMgbGlrZSBhIHBy ZXR0eSB3ZWFrIGFyZ3VtZW50IHdoZW4gYWRkaW5nIGtlcm5lbCBBQkkgaXMgYXQKPiBzdGFrZS4u LgoKSSBhbSBzdGlsbCBub3QgY2xlYXIgb24gdGhlIG5lZWQgZm9yIHRoZSBleHRyYSBuZXRkZXYg Y3JlYXRlZCBieSAKdmlydGlvX25ldC4gVGhlIG9ubHkgYWR2YW50YWdlCmkgY2FuIHNlZSBpcyB0 aGF0IHRoZSBzdGF0cyBjYW4gYmUgYnJva2VuIGJldHdlZW4gVkYgYW5kIHZpcnRpbyAKZGF0YXBh dGhzIGNvbXBhcmVkCnRvIHRoZSBhZ2dyZWdyYXRlZCBzdGF0cyBvbiB2aXJ0aW8gbmV0ZGV2IGFz IHNlZW4gd2l0aCB0aGUgMiBuZXRkZXYgCmFwcHJvYWNoLgoKV2l0aCAyIG5ldGRldiBtb2RlbCwg YW55IFZNIGltYWdlIHRoYXQgaGFzIGEgd29ya2luZyBuZXR3b3JrIApjb25maWd1cmF0aW9uIHdp bGwgdHJhbnNwYXJlbnRseSBnZXQKVkYgYmFzZWQgYWNjZWxlcmF0aW9uIHdpdGhvdXQgYW55IGNo YW5nZXMuIDMgbmV0ZGV2IG1vZGVsIGJyZWFrcyB0aGlzIApjb25maWd1cmF0aW9uIHN0YXJ0aW5n IHdpdGggdGhlCmNyZWF0aW9uIGFuZCBuYW1pbmcgb2YgdGhlIDIgZGV2aWNlcyB0byB1ZGV2IG5l ZWRpbmcgdG8gYmUgYXdhcmUgb2YgCm1hc3RlciBhbmQgc2xhdmUgdmlydGlvLW5ldCBkZXZpY2Vz LgpBbHNvLCBmcm9tIGEgdXNlciBleHBlcmllbmNlIHBvaW50IG9mIHZpZXcsIGxvYWRpbmcgYSB2 aXJ0aW8tbmV0IHdpdGggCkJBQ0tVUCBmZWF0dXJlCmVuYWJsZWQgd2lsbMKgIG5vdyBzaG93IDIg dmlydGlvLW5ldCBuZXRkZXZzLgoKRm9yIGxpdmUgbWlncmF0aW9uIHdpdGggYWR2YW5jZWQgdXNl Y2FzZXMgdGhhdCBTaXdlaSBpcyBzdWdnZXN0aW5nLCBpIAp0aGluayB3ZSBuZWVkIGEgbmV3IGRy aXZlcgp3aXRoIGEgbmV3IGRldmljZSB0eXBlIHRoYXQgY2FuIHRyYWNrIHRoZSBWRiBzcGVjaWZp YyBmZWF0dXJlIHNldHRpbmdzIApldmVuIHdoZW4gdGhlIFZGIGRyaXZlciBpcyB1bmxvYWRlZC4K ClRoYW5rcwpTcmlkaGFyCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX18KVmlydHVhbGl6YXRpb24gbWFpbGluZyBsaXN0ClZpcnR1YWxpemF0aW9uQGxpc3Rz LmxpbnV4LWZvdW5kYXRpb24ub3JnCmh0dHBzOi8vbGlzdHMubGludXhmb3VuZGF0aW9uLm9yZy9t YWlsbWFuL2xpc3RpbmZvL3ZpcnR1YWxpemF0aW9u