From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga01.intel.com ([192.55.52.88]:44064 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751572AbeA3KXX (ORCPT ); Tue, 30 Jan 2018 05:23:23 -0500 Date: Tue, 30 Jan 2018 12:23:19 +0200 From: Mika Westerberg To: Kai Heng Feng Cc: linux-pci@vger.kernel.org, Ethan Hsieh Subject: Re: Thunderbolt PCIe card doesn't get enumerated at cold boot Message-ID: <20180130102319.GE27654@lahna.fi.intel.com> References: <8831781F-8027-4875-AF82-835FBE40F5F0@canonical.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 In-Reply-To: <8831781F-8027-4875-AF82-835FBE40F5F0@canonical.com> Sender: linux-pci-owner@vger.kernel.org List-ID: On Tue, Jan 30, 2018 at 04:32:51PM +0800, Kai Heng Feng wrote: > Hi Mika, > > Bother you again because you are the only TBT expert that I know of ;) No problem. That's what I get paid for :-) > We are enabling a new CFL desktop with TBT card. The TBT card in > question doesn’t get enumerated at cold boot, so the card isn’t listed > under `lspci`. Anything that does a PCI scan (# echo 1 > > /sys/bus/pci/rescan, S3, warmboot) can make the card gets detected > correctly. > > The same TBT card doesn’t have the issue on a KBL desktop, so I not > sure if it’s a driver issue though. By TBT "card" do you mean TBT host add-in-card? Is it Alpine Ridge? > Also, is there a more appropriate mailing list for TBT discussion? I think you can use thunderbolt-software@lists.01.org as well.