linux-kernel - RE: [PATCH v2 3/4] net: stmmac: add support for Intel Quark X1000

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Message-ID: <F54AEECA5E2B9541821D670476DAE19C2B7E9DCA@PGSMSX102.gar.corp.intel.com>
Date:	Wed, 17 Sep 2014 02:41:39 +0000
From:	"Kweh, Hock Leong" <hock.leong.kweh@...el.com>
To:	David Miller <davem@...emloft.net>
CC:	"peppe.cavallaro@...com" <peppe.cavallaro@...com>,
	"rayagond@...avyalabs.com" <rayagond@...avyalabs.com>,
	"vbridgers2013@...il.com" <vbridgers2013@...il.com>,
	"srinivas.kandagatla@...com" <srinivas.kandagatla@...com>,
	"wens@...e.org" <wens@...e.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Ong, Boon Leong" <boon.leong.ong@...el.com>
Subject: RE: [PATCH v2 3/4] net: stmmac: add support for Intel Quark X1000

> -----Original Message-----
> From: David Miller [mailto:davem@...emloft.net]
> Sent: Wednesday, September 17, 2014 3:01 AM
> From: "Kweh, Hock Leong" <hock.leong.kweh@...el.com>
> Date: Mon, 15 Sep 2014 12:42:03 +0000
> 
> > The only things to differentiate them is PCI BUS DEVICE FUNCTION
> > (Bus:Dev:Func) number which are fix numbers 00:20:6 for port 1 and
> > 00:20:7 for port 2 stated in Quark X1000 datasheet.
> 
> Match on the PCI device class, which must be
> PCI_CLASS_NETWORK_ETHERNET or similar.
> 
> The pci_device_id used for probing supports matching on this directly.
> .

Hi David,

Thanks for the pointer. I did a quickly checking on the class number to see if
I could use it for differentiation the ports number. Whereas I found them 
both have the same class number as well. Below shows the "lspci" dump to 
all the PCI devices on Quark X1000 Galileo board (Ethernet controllers are
00:14.6 and 00:14.7). Very unfortunately we are unlikely to use the class 
number as well as pci_device_id for the differentiation.
Thanks.

root@...rk:~# lspci -m
00:00.0 "Class 0600" "8086" "0958" "8086" "095e"
00:14.0 "Class 0805" "8086" "08a7" "8086" "08a7"
00:14.1 "Class 0700" "8086" "0936" "8086" "0936"
00:14.2 "Class 0c03" "8086" "0939" "8086" "0939"
00:14.3 "Class 0c03" "8086" "0939" "8086" "0939"
00:14.4 "Class 0c03" "8086" "093a" "8086" "093a"
00:14.5 "Class 0700" "8086" "0936" "8086" "0936"
00:14.6 "Class 0200" "8086" "0937" "8086" "0937"
00:14.7 "Class 0200" "8086" "0937" "8086" "0937"
00:15.0 "Class 0c80" "8086" "0935" "8086" "0935"
00:15.1 "Class 0c80" "8086" "0935" "8086" "0935"
00:15.2 "Class 0c80" "8086" "0934" "8086" "0934"
00:17.0 "Class 0604" "8086" "11c3" "8086" "11c3"
00:17.1 "Class 0604" "8086" "11c4" "8086" "11c4"
00:1f.0 "Class 0601" "8086" "095e" "8086" "095e"
root@...rk:~# lspci -k
00:00.0 Class 0600: 8086:0958 iosf_mbi_pci
00:14.0 Class 0805: 8086:08a7 sdhci-pci
00:14.1 Class 0700: 8086:0936 serial
00:14.2 Class 0c03: 8086:0939
00:14.3 Class 0c03: 8086:0939 ehci-pci
00:14.4 Class 0c03: 8086:093a ohci-pci
00:14.5 Class 0700: 8086:0936 serial
00:14.6 Class 0200: 8086:0937 stmmaceth
00:14.7 Class 0200: 8086:0937
00:15.0 Class 0c80: 8086:0935
00:15.1 Class 0c80: 8086:0935
00:15.2 Class 0c80: 8086:0934
00:17.0 Class 0604: 8086:11c3 pcieport
00:17.1 Class 0604: 8086:11c4 pcieport
00:1f.0 Class 0601: 8086:095e
root@...rk:~#


Regards,
Wilson

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