From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752264AbcGSVTf (ORCPT ); Tue, 19 Jul 2016 17:19:35 -0400 Received: from mail.kernel.org ([198.145.29.136]:53216 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751660AbcGSVTd (ORCPT ); Tue, 19 Jul 2016 17:19:33 -0400 Date: Tue, 19 Jul 2016 16:19:26 -0500 From: Bjorn Helgaas To: Bjorn Helgaas Cc: Jonathan Yong , linux-pci@vger.kernel.org, intel-wired-lan@lists.osuosl.org, Jeff Kirsher , linux-kernel@vger.kernel.org Subject: Re: [PATCH v6 0/3] PCI: Precision Time Measurement support Message-ID: <20160719211926.GB17840@localhost> References: <20160613185945.12503.32760.stgit@bhelgaas-glaptop2.roam.corp.google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160613185945.12503.32760.stgit@bhelgaas-glaptop2.roam.corp.google.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 13, 2016 at 02:05:26PM -0500, Bjorn Helgaas wrote: > This is a slightly different proposal for the PTM support Jonathan > proposed here: > > http://lkml.kernel.org/r/1462956446-27361-2-git-send-email-jonathan.yong@intel.com > > I split this into three pieces mostly for ease in reviewing. They > could all be squashed: > > - Enable PTM in root ports and switches automatically at boot > - Enable PTM in endpoints when requested by driver > - Add clock granularity information > > I have some open questions about how PTM works on Root Complex > Integrated Endpoints and whether we should enable it automatically > even without a driver request. And I probably left out some details > of the clock granularity computation, so treat this as more of an RFC > than anything. > > Bjorn > > --- > > Bjorn Helgaas (2): > PCI: Add pci_enable_ptm() for drivers to enable PTM on endpoints > PCI: Add PTM clock granularity information > > Jonathan Yong (1): > PCI: Add Precision Time Measurement (PTM) support Jonathan, any comments?