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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B16F2C433F5 for ; Wed, 12 Jan 2022 08:03:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237926AbiALIDh (ORCPT ); Wed, 12 Jan 2022 03:03:37 -0500 Received: from ams.source.kernel.org ([145.40.68.75]:56936 "EHLO ams.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237577AbiALIDh (ORCPT ); Wed, 12 Jan 2022 03:03:37 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 3F671B81E00 for ; Wed, 12 Jan 2022 08:03:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 0982FC36AE9 for ; Wed, 12 Jan 2022 08:03:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1641974615; bh=DbC1sleRt6iD0xhRApLMBXQ5rIzZjcdeNXG2tG8UxF4=; h=From:To:Subject:Date:In-Reply-To:References:From; b=W+kSWi0+bYNsKsunymRvCyj6BkZ6jmAP+wSxdymhtMAhqWfwmisO//IhoVtcvtCR0 Yz3X/n8PjxA6Sl/KaK4i/UubNUnl5DkBnS33TMSs8b26sIycicsbd3zSh/tZjTcHNJ R9imLz7Ff61KSR4ZU41z4HEkfGhDLVMpiDJa+SDZRWGjOXCqRbxUnAJru8m2NeC4in UbWvgAv8QndssOTN41fdADWIoPi1e+DBwRv9k/GHgmV6k/fxN5LHvUtPwfdeEiF3ab NQ83QQ/k28SLPdyeTun6W9jYeVxYphc3iLkKq3mcEP5sbg0irl9/MUys5z+L2BGKQP sPrA2uXQRsFHw== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id DCE06CC13A9; Wed, 12 Jan 2022 08:03:34 +0000 (UTC) From: bugzilla-daemon@bugzilla.kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 215475] RMNET data connection speed would be reduced to about 80-100Mb/s from 150Mb/s if try to re-connect it Date: Wed, 12 Jan 2022 08:03:34 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: USB X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: slark_xiao@163.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=3D215475 --- Comment #2 from slark_xiao@163.com --- Hi Greg, Yes, it also happen on 5.16. I tried it with 5.16-rc8. May I know what do you mean of 'usb trances'? USB protocol analyzer log or tcpdump packages? Actually, I do the same test with another Qualcomm modem device (not the = same serials), and issue can't be reproduced with that device. Seems issue comes from firmware of device. But we can't explain the difference beween Windows= and Linux. So do you have any advice to confirm whether the issue relate with the dr= iver or not? Thanks! --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=