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 A615FC433FE for ; Wed, 12 Jan 2022 08:41:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345956AbiALIlX (ORCPT ); Wed, 12 Jan 2022 03:41:23 -0500 Received: from dfw.source.kernel.org ([139.178.84.217]:54578 "EHLO dfw.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349336AbiALIlQ (ORCPT ); Wed, 12 Jan 2022 03:41:16 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 74C6C61857 for ; Wed, 12 Jan 2022 08:41:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id D4E2BC36AEA for ; Wed, 12 Jan 2022 08:41:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1641976875; bh=4EU8eAGvZcd97a65flVq1sWRg3wSqpvpaZj+F/BWt0Y=; h=From:To:Subject:Date:In-Reply-To:References:From; b=oB0IbQmOVHRoY4gcY+oP1/ZpR7rFH7cmzx9FNUjXjjUUmaEBsrHVyBHu0pm1AaxZ/ UUeN5l8DXpu3JTYdLE+GUDEzK9kDIxIVFiYLUwt0xXq5RpUD1SYITMtKDcQMh9kb/z LSWtaDbgXpTXYKubza8xUWtKYicrBKGcFExlamGMilUdbrkkVFfE9RzGlZDBHfjR7R vo7rVdUSAk8+rlhJS7u2nMy5bpFREqny1ZyzFSMBoHl/3EYQFSeCv+IvfJHVPmggGT 8/+9HyTBaW4ndkhrTz0eo3pgp8Z148MPXzZvE7PpX8WEo3Qa3w5onUHzYmi+gbmdm5 iss5NQJ8Gba1w== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id B90CFCC13AD; Wed, 12 Jan 2022 08:41:15 +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 08:41:15 +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: greg@kroah.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 #3 from Greg Kroah-Hartman (greg@kroah.com) --- On Wed, Jan 12, 2022 at 08:03:34AM +0000, bugzilla-daemon@bugzilla.kernel.o= rg wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=3D215475 >=20 > --- Comment #2 from slark_xiao@163.com --- > Hi Greg, > Yes, it also happen on 5.16. I tried it with 5.16-rc8. >=20 > May I know what do you mean of 'usb trances'? USB protocol analyzer log= or > tcpdump packages? USB protocol analyzer log is best, to compare the data streams. > 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 com= es > from firmware of device. But we can't explain the difference beween Windo= ws > and > Linux. Then please contact the vendor that wrote the firmware, they can help you out the best with this. good luck! greg k-h --=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.=