From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D062FC282F6 for ; Mon, 21 Jan 2019 08:56:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A3CC02084A for ; Mon, 21 Jan 2019 08:56:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729710AbfAUI4A (ORCPT ); Mon, 21 Jan 2019 03:56:00 -0500 Received: from mga04.intel.com ([192.55.52.120]:9797 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728965AbfAUIz5 (ORCPT ); Mon, 21 Jan 2019 03:55:57 -0500 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Jan 2019 00:55:56 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,502,1539673200"; d="asc'?scan'208";a="109803547" Received: from pipin.fi.intel.com (HELO localhost) ([10.237.72.175]) by orsmga006.jf.intel.com with ESMTP; 21 Jan 2019 00:55:55 -0800 From: Felipe Balbi To: "Zengtao \(B\)" Cc: Greg Kroah-Hartman , "linux-usb\@vger.kernel.org" , "linux-kernel\@vger.kernel.org" , Laurent Pinchart Subject: RE: [PATCH] usb: dwc3: gadget: issue a stop command for ISOC endpoint In-Reply-To: <678F3D1BB717D949B966B68EAEB446ED24E4CEE3@dggemm526-mbx.china.huawei.com> References: <1548064976-30196-1-git-send-email-prime.zeng@hisilicon.com> <87tvi2juh4.fsf@linux.intel.com> <678F3D1BB717D949B966B68EAEB446ED24E4CEE3@dggemm526-mbx.china.huawei.com> Date: Mon, 21 Jan 2019 10:55:50 +0200 Message-ID: <87o98ajso9.fsf@linux.intel.com> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-=-= Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Hi, "Zengtao (B)" writes: >>-----Original Message----- >>From: Felipe Balbi [mailto:felipe.balbi@linux.intel.com] >>Sent: Monday, January 21, 2019 4:17 PM >>To: Zengtao (B) >>Cc: Zengtao (B) ; Greg Kroah-Hartman >>; linux-usb@vger.kernel.org; >>linux-kernel@vger.kernel.org >>Subject: Re: [PATCH] usb: dwc3: gadget: issue a stop command for ISOC >>endpoint >> >>* PGP Signed by an unknown key >> >> >>Hi, >> >>Zeng Tao writes: >>> For ISOC transfers, if there is no available data for a period, we >>> need to stop the transfer by issue a stop command, otherwise, all the >>> upcoming transfers will started by update transfer command, and will >>> be dropped with MISS ISOC errors. >> >>We, actually, have code to handle missed isoc errors now. Have you tested >>with that applied? Which kernel are you using? Can you share tracepoints >>captured with v5.0-rc3? >> > > Not v5.0-rc3, but I tested it based on 4.9 with backported dwc3 driver. A= nd with > UVC application, it's very easy to reproduce it. Ok, so it could be that you missed patches while backporting, right? How can I reproduce this? What do I need? Care to give detailed instructions? =2D-=20 balbi --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEElLzh7wn96CXwjh2IzL64meEamQYFAlxFiRcACgkQzL64meEa mQaEBg//SpfB3qvZP3GQIQfPIzacEOeZfvB/iZiCyYHnHHnRgJUwUR/tL3MXyHOf PCLpu/dqevyTJzq+na+wdhNL3MRuIhsVCd202w4Sa7CdTrYt1UHMoRA2DJH9aTtV eVHODV891i8Xmo30vcTFUnmoxS0De1mJabIQInuiWnYD5LR0J6tf1RMz1bVL0g1z esz4pSlf48JGbvTJ8zgr385ykoigReWeG9383rfqKK8WVzpB04EV7YTxTU0ieBbJ s20B/DBNYLZNp9w2XCMaGU1RYTGKSd5LIcU7EBVnTEzRaGw4bRI35j6kn1+q7B2Q N889zimCYxlaOoXJrjH7Pu9iw0CzK6nDIPlcZPSxjtYzH7V2dcoLCF998nLN/nZQ O00DnYut0HpGKIYlTTlxCvffBgAU2uK7QbmjNIOPzG8hB8IYWSUNttAwfkXoyitJ hJkXud754+IZJZV7LVAB97zHGDRKusQKv/WrJObEqjw9vjf01WizmLz1X2ZaRmQo BzIc1CiGXkCNauSDt/akiU8njhXUkSEnPRYJA5w/bDZeSQC8AwB69X4reXJJ+rh3 KD0wZTUcuyXUya9yVbsAEunly21PEgtH17LbiZJNBdUQGNCQGgSbvExahy1IVEPt nrdRgJTSdmE6oVCsB0ubL4SFlOjyZM/spHtwjpGtES1+BLGReoE= =3nby -----END PGP SIGNATURE----- --=-=-=--