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 2A80CC7EE25 for ; Thu, 8 Jun 2023 12:41:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236302AbjFHMlH (ORCPT ); Thu, 8 Jun 2023 08:41:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56632 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230033AbjFHMlE (ORCPT ); Thu, 8 Jun 2023 08:41:04 -0400 Received: from mail-pg1-x52c.google.com (mail-pg1-x52c.google.com [IPv6:2607:f8b0:4864:20::52c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2AB85E43 for ; Thu, 8 Jun 2023 05:41:03 -0700 (PDT) Received: by mail-pg1-x52c.google.com with SMTP id 41be03b00d2f7-5440e98616cso1218703a12.0 for ; Thu, 08 Jun 2023 05:41:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1686228062; x=1688820062; h=in-reply-to:content-transfer-encoding:content-disposition :mime-version:references:message-id:subject:cc:to:from:date:from:to :cc:subject:date:message-id:reply-to; bh=o6uvPLwieY5RkBOZk+PD7M8YvflhokrnPtugOrS3QNE=; b=Mx3sJVE2F1ORzjGqe3xy6X7wsCEApK1+VCCgRvjXycaGUApi2Tp0szjSn8M0PPbOrY L6ZT2JbB809hrtAlSMLtJWgI0nHKoi/twmYAH9M+c9GMxpGAo8IGutngAyddmrMKefPf RCBU4mnCL8+y9Yt8bpiSs2ZXdu8RQpYfL+zv2Gdo/ZaxOJSXFBTVqBrjamKKAnk98XpL A7o0ukDCFy0RxCHOvs0/9rVuq8Zu9N2PmEmZ1tpwMEr4hiD84QamxF/SauHaF9MhLS8B H5kQh9NyXsLSH3lUag3Ko/bg3fjlMsun8spM10a3OnrUJn+QiGsJ/VHlyT4g7Qu0l+ww rEGw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686228062; x=1688820062; h=in-reply-to:content-transfer-encoding:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=o6uvPLwieY5RkBOZk+PD7M8YvflhokrnPtugOrS3QNE=; b=b7qnQZHKQs2rCGk2Ki+65mVLruLUN8S684qTkdee1QKET+cRemuua+C2S67z6vR6l3 9wIgz7nIWC2tAvX4+orYfWtmf2YC2oAcVO7SZfEa8yeA8p58EfthcMgaV9azB0R7hhsi PodSlCw1BhHuyWXH4+usqVXI5/Auyo3nJln7iVuaEINRyPbRA8+E7qvG44WuEM6Jcb+e nUOLepMnhgajCLu9vs5og7mz6Jm5hF/CkuQyZaF20iQVXaCUogHgHkpMbdLQBoOGshCh fUmxQONgSEs3o9RbApoaIIEbfKJDQtlChp5h75c/676FeKHnnW6dF63Ln9bHMWWrLpsE sYdQ== X-Gm-Message-State: AC+VfDxnnjlVCmXvazHNSSiHOoFbr36/n0mT34YJAyV8pAmjnRW3i4+Y KvDH2zTgyh/sxLgJvCvRB4tO X-Google-Smtp-Source: ACHHUZ5poAB/V7RXQ3dOzoAJckBX+G4y1Bj7UJT9KsKdnWi22t9GzGjV2GyemH6S7dwhra7PXiL1qQ== X-Received: by 2002:a17:90b:314c:b0:25b:83ca:2b75 with SMTP id ip12-20020a17090b314c00b0025b83ca2b75mr176896pjb.3.1686228062475; Thu, 08 Jun 2023 05:41:02 -0700 (PDT) Received: from thinkpad ([117.202.186.138]) by smtp.gmail.com with ESMTPSA id 30-20020a17090a01de00b00259a3c99978sm1285622pjd.17.2023.06.08.05.40.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Jun 2023 05:41:02 -0700 (PDT) Date: Thu, 8 Jun 2023 18:10:57 +0530 From: Manivannan Sadhasivam To: Andrew Lunn Cc: Jakub Kicinski , davem@davemloft.net, edumazet@google.com, pabeni@redhat.com, mhi@lists.linux.dev, linux-arm-msm@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, loic.poulain@linaro.org Subject: Re: [PATCH v2 0/2] Add MHI Endpoint network driver Message-ID: <20230608124057.GD5672@thinkpad> References: <20230607152427.108607-1-manivannan.sadhasivam@linaro.org> <20230607094922.43106896@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jun 07, 2023 at 08:13:32PM +0200, Andrew Lunn wrote: > On Wed, Jun 07, 2023 at 09:49:22AM -0700, Jakub Kicinski wrote: > > On Wed, 7 Jun 2023 20:54:25 +0530 Manivannan Sadhasivam wrote: > > > This series adds a network driver for the Modem Host Interface (MHI) endpoint > > > devices that provides network interfaces to the PCIe based Qualcomm endpoint > > > devices supporting MHI bus (like Modems). This driver allows the MHI endpoint > > > devices to establish IP communication with the host machines (x86, ARM64) over > > > MHI bus. > > > > > > On the host side, the existing mhi_net driver provides the network connectivity > > > to the host. > > > > Why are you posting the next version before the discussion on the > > previous one concluded? :| > > > > In any case, I'm opposed to reuse of the networking stack to talk > > to firmware. It's a local device. The networking subsystem doesn't > > have to cater to fake networks. Please carry: > > > > Nacked-by: Jakub Kicinski > > Remote Processor Messaging (rpmsg) Framework does seem to be what is > supposed to be used for these sorts of situations. Not that i know > much about it. > Rpmsg is another messaging protocol used for talking to the remote processor. MHI is somewhat similar in terms of usecase but it is a proprietary protocol used by Qcom for their devices. - Mani > Andrew -- மணிவண்ணன் சதாசிவம்