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=-5.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 4370CC433DB for ; Mon, 1 Feb 2021 11:16:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0759C64DF5 for ; Mon, 1 Feb 2021 11:16:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233350AbhBALQg (ORCPT ); Mon, 1 Feb 2021 06:16:36 -0500 Received: from mail.kernel.org ([198.145.29.99]:45818 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233338AbhBALQe (ORCPT ); Mon, 1 Feb 2021 06:16:34 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 95EE964D7F; Mon, 1 Feb 2021 11:15:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1612178154; bh=NqfSKLyeP6vCC7FfsygaVBCG73kVJRObo8V8nDcpzdQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=s43J2fRi+fvPdHVUFvu2h8tmKi/g1xWSdlWOpKYUeKtgF8yfQR5El1/3KaPJc7Q4J fcO+9VYTx6Z8adBcU65vPQBjcSlN+Fl4DW3A8TBT/jOH1KVdxQjrPDtScslfPdqYJH YGz2xqXv+z3aO6vL7+eRQp8rPVTsfqWl4TnMIi/Y= Date: Mon, 1 Feb 2021 12:15:51 +0100 From: Greg KH To: Manivannan Sadhasivam Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, jhugo@codeaurora.org, bbhatt@codeaurora.org, loic.poulain@linaro.org, netdev@vger.kernel.org Subject: Re: [RESEND PATCH v18 0/3] userspace MHI client interface driver Message-ID: References: <1609958656-15064-1-git-send-email-hemantk@codeaurora.org> <20210113152625.GB30246@work> <20210201105549.GB108653@thinkpad> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210201105549.GB108653@thinkpad> Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On Mon, Feb 01, 2021 at 04:25:49PM +0530, Manivannan Sadhasivam wrote: > Hi Greg, > > On Wed, Jan 27, 2021 at 04:15:42PM +0100, Greg KH wrote: > > On Wed, Jan 13, 2021 at 08:56:25PM +0530, Manivannan Sadhasivam wrote: > > > Hi Greg, > > > > > > On Wed, Jan 06, 2021 at 10:44:13AM -0800, Hemant Kumar wrote: > > > > This patch series adds support for UCI driver. UCI driver enables userspace > > > > clients to communicate to external MHI devices like modem. UCI driver probe > > > > creates standard character device file nodes for userspace clients to > > > > perform open, read, write, poll and release file operations. These file > > > > operations call MHI core layer APIs to perform data transfer using MHI bus > > > > to communicate with MHI device. > > > > > > > > This interface allows exposing modem control channel(s) such as QMI, MBIM, > > > > or AT commands to userspace which can be used to configure the modem using > > > > tools such as libqmi, ModemManager, minicom (for AT), etc over MHI. This is > > > > required as there are no kernel APIs to access modem control path for device > > > > configuration. Data path transporting the network payload (IP), however, is > > > > routed to the Linux network via the mhi-net driver. Currently driver supports > > > > QMI channel. libqmi is userspace MHI client which communicates to a QMI > > > > service using QMI channel. Please refer to > > > > https://www.freedesktop.org/wiki/Software/libqmi/ for additional information > > > > on libqmi. > > > > > > > > Patch is tested using arm64 and x86 based platform. > > > > > > > > > > This series looks good to me and I'd like to merge it into mhi-next. You > > > shared your reviews on the previous revisions, so I'd like to get your > > > opinion first. > > > > If you get the networking people to give you an ack on this, it's fine > > with me. > > > > As discussed in previous iteration, this series is not belonging to networking > subsystem. The functionality provided by this series allows us to configure the > modem over MHI bus and the rest of the networking stuff happens over the > networking subsystem as usual. Great, then it should be easy to get their acceptance :) > This holds the same with USB and serial modems which we are having over decades > in mainline. I don't see the connection here, sorry. thanks, greg k-h