From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Williams Subject: [PATCH] Documentation: clarify phys_port_id Date: Wed, 17 Dec 2014 10:59:36 -0600 Message-ID: <1418835576.1160.38.camel@dcbw.local> References: <1418834826.1160.35.camel@dcbw.local> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: Joshua Watt , jpirko@redhat.com, Florian Fainelli To: netdev@vger.kernel.org Return-path: Received: from mx1.redhat.com ([209.132.183.28]:33541 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750790AbaLQQ7k (ORCPT ); Wed, 17 Dec 2014 11:59:40 -0500 In-Reply-To: <1418834826.1160.35.camel@dcbw.local> Sender: netdev-owner@vger.kernel.org List-ID: Signed-off-by: Dan Williams --- Documentation/ABI/testing/sysfs-class-net | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/Documentation/ABI/testing/sysfs-class-net b/Documentation/ABI/testing/sysfs-class-net index e1b2e78..7fe823a 100644 --- a/Documentation/ABI/testing/sysfs-class-net +++ b/Documentation/ABI/testing/sysfs-class-net @@ -186,7 +186,12 @@ KernelVersion: 3.12 Contact: netdev@vger.kernel.org Description: Indicates the interface unique physical port identifier within - the NIC, as a string. + the NIC, as a string. If two net_device objects share physical + hardware or other resources, and/or do not operate independently + both net_device objects should be assigned the + same phys_port_id. phys_port_id should be as globally unique + as possible to prevent conflicts between different drivers and + vendors, eg with MAC addresses or hardware GUIDs. What: /sys/class/net//speed Date: October 2009 -- 1.9.3