From mboxrd@z Thu Jan 1 00:00:00 1970 From: Franck BAUDIN Subject: Wrong TCP checksum of packets sent by Linux guest (virtIO/vhost) Date: Tue, 2 Sep 2014 13:20:08 +0000 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 To: "dev-VfR2kkLFssw@public.gmane.org" Return-path: Content-Language: en-US List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" SGVsbG8sDQoNClRoaXMgaXMgYSByZXBvc3Qgb2YgaHR0cHM6Ly9saXN0cy4wMS5vcmcvcGlwZXJt YWlsL2RwZGstb3ZzLzIwMTQtU2VwdGVtYmVyLzAwMTc4OC5odG1sIGFzIHRoZSBpc3N1ZSBtaWdo dCBiZSByZWxhdGVkIHRvIGRwZGsub3JnIHZob3N0IGNvZGUuDQoNCkkgYW0gdXNpbmcgZHBkay1v dnMgMS4xLjAgKGxhdGVzdCByZWxlYXNlKSBhcyBmb2xsb3cgOg0KDQpsaW51eC1ndWVzdCAobm8g RFBLRCkgPC0tLSAgdmlydElPIC0tLT4gT1ZESyAxLjEuMCAod2l0aCBsYXRlc3QgRFBESyBbKl0p IDwgLS0tIE5pYW50aWMgLS0tID4gbGludXgtbmF0aXZlDQoNClsqXSBjb21taXQgOGZkOGJlYmMw NTE3MDRkN2NhZWNmZWQ4ZDhhMDY1YTc5YzAyMjMyOQ0KQXV0aG9yOiBBZHJpZW4gTWF6YXJndWls IDxhZHJpZW4ubWF6YXJndWlsQDZ3aW5kLmNvbT4NCkRhdGU6ICAgTW9uIFNlcCAxIDEyOjMxOjEx IDIwMTQgKzAyMDANCg0KVURQL0lDTVAgY29ubmVjdGl2aXR5IGlzIGZpbmUsIGJ1dCBUQ1AgY2hl Y2tzdW0gb2YgcGFja2V0IHNlbnQgYnkgdGhlIGd1ZXN0IGFyZSBpbmNvcnJlY3QsIGFzIHNob3dl ZCB3aXRoIHRjcGR1bXAgb24gbGludXgtbmF0aXZlLg0KDQpJcyBpdCBzdXBwb3NlZCB0byB3b3Jr PyBJZiB5ZXMsIHdoYXQgaXMgdGhlIHByb3BlciBxZW11IHZlcnNpb24gdG8gdXNlIGFuZCBpdHMg cGFyYW1ldGVycz8NCg0KSSBhbSB1c2luZyBxZW11IHZlcnNpb24gcHJvdmlkZWQgYnkgZHBkay1v dnMgKHNhbWUgaXNzdWUgd2l0aCBQRERLIDEuNy4wIGFuZCBsYXRlc3Qgb25lKSBhbmQgSSBmb2xs b3dlZCB0aGlzIGRvY3VtZW50YXRpb246IGh0dHBzOi8vZ2l0aHViLmNvbS8wMW9yZy9kcGRrLW92 cy9ibG9iL2RldmVsb3BtZW50L2RvY3MvMDRfU2FtcGxlX0NvbmZpZ3VyYXRpb25zLzAyX1VzZXJz cGFjZS12SG9zdC5tZA0KDQpUaGFua3MhDQpGcmFuY2sNCg0KDQoNClRoaXMgbWVzc2FnZSBhbmQg YW55IGF0dGFjaG1lbnRzICh0aGUgIm1lc3NhZ2UiKSBhcmUgY29uZmlkZW50aWFsLCBpbnRlbmRl ZCBzb2xlbHkgZm9yIHRoZSBhZGRyZXNzZWVzLiBJZiB5b3UgYXJlIG5vdCB0aGUgaW50ZW5kZWQg cmVjaXBpZW50LCBwbGVhc2Ugbm90aWZ5IHRoZSBzZW5kZXIgaW1tZWRpYXRlbHkgYnkgZS1tYWls IGFuZCBkZWxldGUgdGhpcyBtZXNzYWdlIGZyb20geW91ciBzeXN0ZW0uIEluIHRoaXMgY2FzZSwg eW91IGFyZSBub3QgYXV0aG9yaXplZCB0byB1c2UsIGNvcHkgdGhpcyBtZXNzYWdlIGFuZC9vciBk aXNjbG9zZSB0aGUgY29udGVudCB0byBhbnkgb3RoZXIgcGVyc29uLiBFLW1haWxzIGFyZSBzdXNj ZXB0aWJsZSB0byBhbHRlcmF0aW9uLiBOZWl0aGVyIFFvc21vcyBub3IgYW55IG9mIGl0cyBzdWJz aWRpYXJpZXMgb3IgYWZmaWxpYXRlcyBzaGFsbCBiZSBsaWFibGUgZm9yIHRoZSBtZXNzYWdlIGlm IGFsdGVyZWQsIGNoYW5nZWQgb3IgZmFsc2lmaWVkLg0KDQpDZSBtZXNzYWdlIGV0IHRvdXRlcyBz ZXMgcGnDqGNlcyBqb2ludGVzIChjaS1hcHLDqHMgbGUgIm1lc3NhZ2UiKXNvbnQgY29uZmlkZW50 aWVscyBldCDDqXRhYmxpcyDDoCBsJ2ludGVudGlvbiBleGNsdXNpdmUgZGUgc2VzIGRlc3RpbmF0 YWlyZXMuIFNpIHZvdXMgYXZleiByZcOndSBjZSBtZXNzYWdlIHBhciBlcnJldXIsIG1lcmNpIGTi gJllbiBpbmZvcm1lciBpbW3DqWRpYXRlbWVudCBzb24gw6ltZXR0ZXVyIHBhciBjb3VycmllciDD qWxlY3Ryb25pcXVlIGV0IGTigJllZmZhY2VyIGNlIG1lc3NhZ2UgZGUgdm90cmUgc3lzdMOobWUu IERhbnMgY2V0dGUgaHlwb3Row6hzZSwgdm91cyBu4oCZw6p0ZXMgcGFzIGF1dG9yaXPDqSDDoCB1 dGlsaXNlciwgY29waWVyIGNlIG1lc3NhZ2UgZXQvb3UgZW4gZGl2dWxndWVyIGxlIGNvbnRlbnUg w6AgdW4gdGllcnMuIFRvdXQgbWVzc2FnZSDDqWxlY3Ryb25pcXVlIGVzdCBzdXNjZXB0aWJsZSBk J2FsdMOpcmF0aW9uLiBRb3Ntb3MgZXQgc2VzIGZpbGlhbGVzIGTDqWNsaW5lbnQgdG91dGUgcmVz cG9uc2FiaWxpdMOpIGF1IHRpdHJlIGRlIGNlIG1lc3NhZ2UgcydpbCBhIMOpdMOpIGFsdMOpcsOp LCBkw6lmb3Jtw6kgb3UgZmFsc2lmacOpLg0K