From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp-o-3.desy.de ([131.169.56.156]:34899 "EHLO smtp-o-3.desy.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753199AbbCSM01 (ORCPT ); Thu, 19 Mar 2015 08:26:27 -0400 Received: from smtp-map-3.desy.de (smtp-map-3.desy.de [131.169.56.68]) by smtp-o-3.desy.de (DESY-O-3) with ESMTP id 15A602802AB for ; Thu, 19 Mar 2015 13:19:43 +0100 (CET) Received: from ZITSWEEP1.win.desy.de (zitsweep1.win.desy.de [131.169.97.95]) by smtp-map-3.desy.de (DESY_MAP_3) with ESMTP id E44121318 for ; Thu, 19 Mar 2015 13:19:42 +0100 (MET) Received: from smtp-intra-3.desy.de (lb-40-26.desy.de) by ZITSWEEP1.win.desy.de (Clearswift SMTPRS 5.5.0) with ESMTP id for ; Thu, 19 Mar 2015 13:19:42 +0100 Received: from [131.169.146.36] (mcspetros.desy.de [131.169.146.36]) by smtp-intra-3.desy.de (DESY-INTRA-3) with ESMTP id 46BE813D1 for ; Thu, 19 Mar 2015 13:19:42 +0100 (MET) Message-ID: <550ABEDE.6030907@desy.de> Date: Thu, 19 Mar 2015 13:19:42 +0100 From: Ludwig Petrosyan MIME-Version: 1.0 To: "linux-pci@vger.kernel.org" Subject: ACPI PCIe Hot Plug or pciehp Content-Type: text/plain; charset=utf-8 Sender: linux-pci-owner@vger.kernel.org List-ID: Hi we are using PCIe hotplug for a few years in MTCA crates. We are using pciehp driver to handle hotplug events and it is fine. To force load the pciehp we used to use boot parameters pciehp.pciehp_force=1 and pci-ports=native. But today's more people talking about using ACPI hotplug instead of pciehp. I have tried to get some information, but could not find good description. Could some one help me to understand which is "better" and which one has to be used, ACPI hotplug or pciehp Thanks for help with best regards Ludwig