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=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 E60EBC352AB for ; Fri, 27 Sep 2019 05:13:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BDFC8217F4 for ; Fri, 27 Sep 2019 05:13:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1569561212; bh=AftiEiLWyKEj9+4fCQzCQskHt9HJiWKV//AZDTI6ZHw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=uSI1PjCVJwhcbJ/eFSbTVkrvnedKQzKDXgrp0YuVd/+atNC7xmqt7JoetIn/srxqg kfP09PVoEPfd36Jy+DKVU5654FbR3U6rsjv9cOo8a5e6OT7tq1I6PBC9Eu5disB5N3 CmmjhhhEqTl7q7l8mjFZzEZyWTSQszBqamLBHUXw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728413AbfI0FNb (ORCPT ); Fri, 27 Sep 2019 01:13:31 -0400 Received: from mail.kernel.org ([198.145.29.99]:57460 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726217AbfI0FNb (ORCPT ); Fri, 27 Sep 2019 01:13:31 -0400 Received: from localhost (unknown [62.119.166.9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1524621783; Fri, 27 Sep 2019 05:13:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1569561209; bh=AftiEiLWyKEj9+4fCQzCQskHt9HJiWKV//AZDTI6ZHw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Bj38Ej61OzeAqlcz7xjR0Bet3kaASNF4zHAMMsax8CiLBTTPGmSHR85idFgMOyztn qdFWAbRRAUm3+mqK78d7AD/ZPbbc/MBcNlngvz6PeyNgSJCkH4VsDNqxQj9G9MRcZk F4vRnA0d6eaic/8IOHQ2Wdo+IV6gM0IBUjyYcspk= Date: Fri, 27 Sep 2019 07:13:20 +0200 From: "gregkh@linuxfoundation.org" To: "Nguyen, Anthony L" Cc: "Kirsher, Jeffrey T" , "jgg@mellanox.com" , "netdev@vger.kernel.org" , "linux-rdma@vger.kernel.org" , "dledford@redhat.com" , "Ertman, David M" Subject: Re: [RFC 01/20] ice: Initialize and register multi-function device to provide RDMA Message-ID: <20190927051320.GA1767635@kroah.com> References: <20190926164519.10471-1-jeffrey.t.kirsher@intel.com> <20190926164519.10471-2-jeffrey.t.kirsher@intel.com> <20190926180556.GB1733924@kroah.com> <7e7f6c159de52984b89c13982f0a7fd83f1bdcd4.camel@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7e7f6c159de52984b89c13982f0a7fd83f1bdcd4.camel@intel.com> User-Agent: Mutt/1.12.2 (2019-09-21) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Thu, Sep 26, 2019 at 11:39:22PM +0000, Nguyen, Anthony L wrote: > On Thu, 2019-09-26 at 20:05 +0200, Greg KH wrote: > > On Thu, Sep 26, 2019 at 09:45:00AM -0700, Jeff Kirsher wrote: > > > From: Tony Nguyen > > > > > > The RDMA block does not advertise on the PCI bus or any other bus. > > > > Huh? How do you "know" where it is then? Isn't is usually assigned > > to > > a PCI device? > > The RDMA block does not have its own PCI function so it must register > and interact with the ice driver. So the "ice driver" is the real thing controlling the pci device? How does it "know" about the RDMA block? thanks, greg k-h