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 F0FF3C433EF for ; Wed, 12 Jan 2022 08:41:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1351692AbiALIlV (ORCPT ); Wed, 12 Jan 2022 03:41:21 -0500 Received: from out4-smtp.messagingengine.com ([66.111.4.28]:33181 "EHLO out4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237949AbiALIlQ (ORCPT ); Wed, 12 Jan 2022 03:41:16 -0500 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id 2206D5C00B6; Wed, 12 Jan 2022 03:41:13 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute3.internal (MEProxy); Wed, 12 Jan 2022 03:41:13 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kroah.com; h= date:from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=fm2; bh=1VPUQ98CFooz7w3tn0vaXauZFxH VQ/0IjrIBq+0zENw=; b=Vt5qYQcqpKsqW8tDu3amnpuK2PtHBm+OUJrI1TWvsma UBBwSKwkqEgtDjp3qFFtCt5s2eyPD1g5CL3TPEzGnE4nQUTQ2Up5V1IoH4pyfZXJ eDCzCsZjUNAE5V8UoT6OOFL36wQDsSqeGgtsu4Pl9EoLNpu3XkbOBVjqmQBBFYgi m3Jl8TkMkwO1b4ygb5YQ/ExDiozhpkzjHJod41q0BA8pOavTrGH4V3oTGd/941o5 CoBpwYj6iv+7z5yFz0ww6BPK4KZRo6yRb4fNXeLiQnlIUj86Z70mYAerGnU7H20I 67CQmlaoHPGCb5kkDN1b/DH280HhjILeuaufXCGOuig== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm1; bh=1VPUQ9 8CFooz7w3tn0vaXauZFxHVQ/0IjrIBq+0zENw=; b=F6rVydSVXmCACtAhXrWLkB Ldiq9SyRPi5MWvWLOlSo8gqkgHDFFEXqc2T0PTv7eME4/ZKcEjvINFdQ+l3S1oxV OZeve0QOTQr987flElFII55IwJT6dUgh8ebZY45m5rXJeRx9RrE71hhRmbutvjxG nhj81SiHpKS/ygNlXSjaza6Dn65FtZdKcFure5QHyWHw8Nkva/BqQ63EQiqfFviZ e12OoRp7Pgn2vP7TVsx6sKXGEhRJsWTk6Dqw57gk/jbvlL8+ybe7FgYvZffTV+EB BwbN3S1AuYGTfBD0FfZf4kYeWN5fyDbncq0cjG8V3fL4QC0qsNmkIz85r8n9UNcA == X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvuddrudehgedguddvgecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecunecujfgurhepfffhvffukfhfgggtuggjsehttd ertddttddvnecuhfhrohhmpefirhgvghcumffjuceoghhrvghgsehkrhhorghhrdgtohhm qeenucggtffrrghtthgvrhhnpeeuleeltdehkeeltefhleduuddvhfffuedvffduveeghe ekgeeiffevheegfeetgfenucffohhmrghinhepkhgvrhhnvghlrdhorhhgnecuvehluhhs thgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhepghhrvghgsehkrhhorg hhrdgtohhm X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Wed, 12 Jan 2022 03:41:12 -0500 (EST) Date: Wed, 12 Jan 2022 09:41:09 +0100 From: Greg KH To: bugzilla-daemon@bugzilla.kernel.org Cc: linux-usb@vger.kernel.org Subject: Re: [Bug 215475] RMNET data connection speed would be reduced to about 80-100Mb/s from 150Mb/s if try to re-connect it Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On Wed, Jan 12, 2022 at 08:03:34AM +0000, bugzilla-daemon@bugzilla.kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=215475 > > --- 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? 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 comes > from firmware of device. But we can't explain the difference beween Windows 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