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Tsirkin" To: Parav Pandit Subject: Re: [virtio-dev] [PATCH] virtio-net: use mtu size as buffer length for big packets Message-ID: <20220809173024-mutt-send-email-mst@kernel.org> References: <465efc4c-f41f-494e-8f2d-a87deae90c5d@nvidia.com> <06bf192a-d310-943e-bbe1-1c53108db892@oracle.com> <3b87cc07-525a-6753-6224-37ebc2503e65@oracle.com> MIME-Version: 1.0 In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline Cc: "alexander.h.duyck@intel.com" , Virtio-Dev , "kubakici@wp.pl" , "sridhar.samudrala@intel.com" , "jesse.brandeburg@intel.com" , Gavi Teitz , virtualization , "Hemminger, Stephen" , "loseweigh@gmail.com" , davem , Gavin Li X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" T24gVHVlLCBBdWcgMDksIDIwMjIgYXQgMDk6MTM6NDJQTSArMDAwMCwgUGFyYXYgUGFuZGl0IHdy b3RlOgo+ID4gRnJvbTogU2ktV2VpIExpdSA8c2ktd2VpLmxpdUBvcmFjbGUuY29tPgo+ID4gU2Vu dDogVHVlc2RheSwgQXVndXN0IDksIDIwMjIgNDozMyBQTQo+ID4gCj4gPiBPbiA4LzkvMjAyMiAx MjoxOCBQTSwgUGFyYXYgUGFuZGl0IHdyb3RlOgo+ID4gPj4gRnJvbTogU2ktV2VpIExpdSA8c2kt d2VpLmxpdUBvcmFjbGUuY29tPgo+ID4gPj4gU2VudDogVHVlc2RheSwgQXVndXN0IDksIDIwMjIg MzowOSBQTQo+ID4gPj4+PiBGcm9tOiBTaS1XZWkgTGl1IDxzaS13ZWkubGl1QG9yYWNsZS5jb20+ Cj4gPiA+Pj4+IFNlbnQ6IFR1ZXNkYXksIEF1Z3VzdCA5LCAyMDIyIDI6MzkgUE0gQ3VycmVudGx5 IGl0IGlzIG5vdC4gTm90IGEKPiA+ID4+Pj4gc2luZ2xlIHBhdGNoIG5vciB0aGlzIHBhdGNoLCBi dXQgdGhlIGNvbnRleHQgZm9yIHRoZSBldmVudHVhbCBnb2FsCj4gPiA+Pj4+IGlzIHRvIGFsbG93 IFhEUCBvbiBhIE1UVT05MDAwIGxpbmsgd2hlbiBndWVzdCB1c2VycyBpbnRlbnRpb25hbGx5Cj4g PiA+Pj4+IGxvd2VyIGRvd24gTVRVIHRvIDE1MDAuCj4gPiA+Pj4gV2hpY2ggYXBwbGljYXRpb24g YmVuZWZpdCBieSBoYXZpbmcgYXN5bW1ldHJ5IGJ5IGxvd2VyaW5nIG10dSB0bwo+ID4gPj4+IDE1 MDAKPiA+ID4+IHRvIHNlbmQgcGFja2V0cyBidXQgd2FudCB0byByZWNlaXZlIDlLIHBhY2tldHM/ Cj4gPiA+IEJlbG93IGRldGFpbHMgZG9lc27igJl0IGFuc3dlciB0aGUgcXVlc3Rpb24gb2YgYXN5 bW1ldHJ5LiA6KQo+ID4gPgo+ID4gPj4gSSB0aGluayB2aXJ0aW8tbmV0IGRyaXZlciBkb2Vzbid0 IGRpZmZlcmVudGlhdGUgTVRVIGFuZCBNUlUsIGluIHdoaWNoCj4gPiA+PiBjYXNlIHRoZSByZWNl aXZlIGJ1ZmZlciB3aWxsIGJlIHJlZHVjZWQgdG8gZml0IHRoZSAxNTAwQiBwYXlsb2FkIHNpemUK PiA+ID4+IHdoZW4gbXR1IGlzIGxvd2VyZWQgZG93biB0byAxNTAwIGZyb20gOTAwMC4KPiA+ID4g SG93PyBEcml2ZXIgcmVkdWNlZCB0aGUgbVh1IHRvIDE1MDAsIHNheSBpdCBpcyBpbXByb3ZlZCB0 byBwb3N0IGJ1ZmZlcnMgb2YKPiA+IDE1MDAgYnl0ZXMuCj4gPiBGb3IgYmlnX3BhY2tldCBwYXRo LCB5ZXMsIHdlIG5lZWQgaW1wcm92ZW1lbnQ7IGZvciBtZXJnZWFibGUsIGl0J3MKPiA+IGFkYXB0 YWJsZSB0byBhbnkgaW5jb21pbmcgcGFja2V0IHNpemUgc28gMTUwMCBpcyB3aGF0IGl0IGlzIHRv ZGF5Lgo+ID4gPgo+ID4gPiBEZXZpY2UgZG9lc24ndCBrbm93IGFib3V0IGl0IGJlY2F1c2UgbXR1 IGluIGNvbmZpZyBzcGFjZSBpcyBSTyBmaWVsZC4KPiA+ID4gRGV2aWNlIGtlZXAgZHJvcHBpbmcg OUsgcGFja2V0cyBiZWNhdXNlIGJ1ZmZlcnMgcG9zdGVkIGFyZSAxNTAwIGJ5dGVzLgo+ID4gPiBU aGlzIGlzIGJlY2F1c2UgZGV2aWNlIGZvbGxvd3MgdGhlIHNwZWMgIiBUaGUgZGV2aWNlIE1VU1Qg Tk9UIHBhc3MKPiA+IHJlY2VpdmVkIHBhY2tldHMgdGhhdCBleGNlZWQgbXR1Ii4KPiA+IFJpZ2h0 LCB0aGF0J3Mgd2hhdCBpdCBoYXBwZW5zIHRvZGF5IG9uIGRldmljZSBzaWRlIChpLmUuIHZob3N0 LW5ldCwgYnR3Cj4gPiBtbHg1IHZkcGEgZGV2aWNlIHNlZW1zIHRvIGhhdmUgYSBidWcgbm90IHBy by1hY3RpdmVseSBkcm9wcGluZyBwYWNrZXRzIHRoYXQKPiA+IGV4Y2VlZCB0aGUgTVRVIHNpemUs IGNhdXNpbmcgZ3Vlc3QgcGFuaWMgaW4gc21hbGwgcGFja2V0IHBhdGgpLgo+ID4gPgo+ID4gPiBT bywgSSBhbSBsb3N0IHdoYXQgdmlydGlvIG5ldCBkZXZpY2UgdXNlciBhcHBsaWNhdGlvbiBpcyB0 cnlpbmcgdG8gYWNoaWV2ZSBieQo+ID4gc2VuZGluZyBzbWFsbGVyIHBhY2tldHMgYW5kIGRyb3Bw aW5nIGFsbCByZWNlaXZlIHBhY2tldHMuCj4gPiA+IChpdCBkb2VzbuKAmXQgaGF2ZSBhbnkgcmVs YXRpb24gdG8gbWVyZ2VhYmxlIG9yIG90aGVyd2lzZSkuCj4gPiAKPiA+IFVzdWFsbHksIHRoZSB1 c2UgY2FzZSBJJ20gYXdhcmUgb2Ygd291bGQgc2V0IHRoZSBwZWVyJ3MgTVRVIHRvIDE1MDAgKGUu Zy4gb24KPiA+IGEgdmlydHVhbCBuZXR3b3JrIGFwcGxpYW5jZSksIG9yIGl0IHdvdWxkIHJlbHkg b24gcGF0aCBtdHUgZGlzY292ZXJ5IHRvIGF2b2lkCj4gPiBwYWNrZXQgZHJvcCBhY3Jvc3MgbGlu a3MuCj4gT2suIFNvbWVob3cgdGhlIGFwcGxpY2F0aW9uIGtub3dzIHRoZSBtdHUgdG8gc2V0IG9u IChhbGwpIHBlZXIocykgYW5kIGhvcGUgZm9yIHRoZSBiZXN0Lgo+IFVuZGVyc3Rvb2QuCgpUaGF0 J3MgZ2VuZXJhbGx5IHdoYXQgb25lIGhhcyB0byBkbyB3aXRoIG10dSwgeWVzIC0gaXQgaGFzIHRv IGJlIHNldApjb25zaXN0ZW50bHkgYWNyb3NzIHRoZSBMQU4uIFdoaWxlIGUuZy4gcE1UVSBtaWdo dCBoZWxwIHdvcmsgYXJvdW5kIHNvbWUKbWlzY29uZmlndXJlZCBMQU5zIHdpdGggYSBtaXggb2Yg ZGlmZmVyZW50IE1UVXMgaXQgd2FzIG5ldmVyIGRlc2lnbmVkCmZvciB0aGF0LgoKLS0gCk1TVAoK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KVmlydHVhbGl6 YXRpb24gbWFpbGluZyBsaXN0ClZpcnR1YWxpemF0aW9uQGxpc3RzLmxpbnV4LWZvdW5kYXRpb24u b3JnCmh0dHBzOi8vbGlzdHMubGludXhmb3VuZGF0aW9uLm9yZy9tYWlsbWFuL2xpc3RpbmZvL3Zp cnR1YWxpemF0aW9u