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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: <20220809173542-mutt-send-email-mst@kernel.org> References: <20220802044548.9031-1-gavinl@nvidia.com> <973632c6-3606-01fb-c584-a6d4774647d8@oracle.com> <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" T24gVHVlLCBBdWcgMDksIDIwMjIgYXQgMDc6MTg6MzBQTSArMDAwMCwgUGFyYXYgUGFuZGl0IHdy b3RlOgo+ID4gRnJvbTogU2ktV2VpIExpdSA8c2ktd2VpLmxpdUBvcmFjbGUuY29tPgo+ID4gU2Vu dDogVHVlc2RheSwgQXVndXN0IDksIDIwMjIgMzowOSBQTQo+IAo+ID4gPj4gRnJvbTogU2ktV2Vp IExpdSA8c2ktd2VpLmxpdUBvcmFjbGUuY29tPgo+ID4gPj4gU2VudDogVHVlc2RheSwgQXVndXN0 IDksIDIwMjIgMjozOSBQTSBDdXJyZW50bHkgaXQgaXMgbm90LiBOb3QgYQo+ID4gPj4gc2luZ2xl IHBhdGNoIG5vciB0aGlzIHBhdGNoLCBidXQgdGhlIGNvbnRleHQgZm9yIHRoZSBldmVudHVhbCBn b2FsIGlzCj4gPiA+PiB0byBhbGxvdyBYRFAgb24gYSBNVFU9OTAwMCBsaW5rIHdoZW4gZ3Vlc3Qg dXNlcnMgaW50ZW50aW9uYWxseSBsb3dlcgo+ID4gPj4gZG93biBNVFUgdG8gMTUwMC4KPiA+ID4g V2hpY2ggYXBwbGljYXRpb24gYmVuZWZpdCBieSBoYXZpbmcgYXN5bW1ldHJ5IGJ5IGxvd2VyaW5n IG10dSB0byAxNTAwCj4gPiB0byBzZW5kIHBhY2tldHMgYnV0IHdhbnQgdG8gcmVjZWl2ZSA5SyBw YWNrZXRzPwo+IAo+IEJlbG93IGRldGFpbHMgZG9lc27igJl0IGFuc3dlciB0aGUgcXVlc3Rpb24g b2YgYXN5bW1ldHJ5LiA6KQo+IAo+ID4gSSB0aGluayB2aXJ0aW8tbmV0IGRyaXZlciBkb2Vzbid0 IGRpZmZlcmVudGlhdGUgTVRVIGFuZCBNUlUsIGluIHdoaWNoIGNhc2UKPiA+IHRoZSByZWNlaXZl IGJ1ZmZlciB3aWxsIGJlIHJlZHVjZWQgdG8gZml0IHRoZSAxNTAwQiBwYXlsb2FkIHNpemUgd2hl biBtdHUgaXMKPiA+IGxvd2VyZWQgZG93biB0byAxNTAwIGZyb20gOTAwMC4gCj4gSG93PyBEcml2 ZXIgcmVkdWNlZCB0aGUgbVh1IHRvIDE1MDAsIHNheSBpdCBpcyBpbXByb3ZlZCB0byBwb3N0IGJ1 ZmZlcnMgb2YgMTUwMCBieXRlcy4KPiAKPiBEZXZpY2UgZG9lc24ndCBrbm93IGFib3V0IGl0IGJl Y2F1c2UgbXR1IGluIGNvbmZpZyBzcGFjZSBpcyBSTyBmaWVsZC4KPiBEZXZpY2Uga2VlcCBkcm9w cGluZyA5SyBwYWNrZXRzIGJlY2F1c2UgYnVmZmVycyBwb3N0ZWQgYXJlIDE1MDAgYnl0ZXMuCj4g VGhpcyBpcyBiZWNhdXNlIGRldmljZSBmb2xsb3dzIHRoZSBzcGVjICIgVGhlIGRldmljZSBNVVNU IE5PVCBwYXNzIHJlY2VpdmVkIHBhY2tldHMgdGhhdCBleGNlZWQgbXR1Ii4KCgpUaGUgIm10dSIg aGVyZSBpcyB0aGUgZGV2aWNlIGNvbmZpZyBmaWVsZCwgd2hpY2ggaXMKCiAgICAgICAgLyogRGVm YXVsdCBtYXhpbXVtIHRyYW5zbWl0IHVuaXQgYWR2aWNlICovCgp0aGVyZSBpcyBubyBndWFyYW50 ZWUgZGV2aWNlIHdpbGwgbm90IGdldCBhIGJpZ2dlciBwYWNrZXQuCkFuZCB0aGVyZSBpcyBubyBn dWFyYW50ZWUgc3VjaCBhIHBhY2tldCB3aWxsIGJlIGRyb3BwZWQKYXMgb3Bwb3NlZCB0byB3ZWRn aW5nIHRoZSBkZXZpY2UgaWYgdXNlcnNwYWNlIGluc2lzdHMgb24KYWRkaW5nIHNtYWxsZXIgYnVm ZmVycy4KCgo+IFNvLCBJIGFtIGxvc3Qgd2hhdCB2aXJ0aW8gbmV0IGRldmljZSB1c2VyIGFwcGxp Y2F0aW9uIGlzIHRyeWluZyB0byBhY2hpZXZlIGJ5IHNlbmRpbmcgc21hbGxlciBwYWNrZXRzIGFu ZCBkcm9wcGluZyBhbGwgcmVjZWl2ZSBwYWNrZXRzLgo+IChpdCBkb2VzbuKAmXQgaGF2ZSBhbnkg cmVsYXRpb24gdG8gbWVyZ2VhYmxlIG9yIG90aGVyd2lzZSkuCgpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwpWaXJ0dWFsaXphdGlvbiBtYWlsaW5nIGxpc3QK VmlydHVhbGl6YXRpb25AbGlzdHMubGludXgtZm91bmRhdGlvbi5vcmcKaHR0cHM6Ly9saXN0cy5s aW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4vbGlzdGluZm8vdmlydHVhbGl6YXRpb24=