netdev - Re: [net-next-2.6 PATCH] igb: add support for reporting 5GT/s during probe on PCIe Gen2

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Date:	Tue, 13 Apr 2010 02:58:57 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	bhutchings@...arflare.com
Cc:	jeffrey.t.kirsher@...el.com, netdev@...r.kernel.org,
	gospo@...hat.com, alexander.h.duyck@...el.com
Subject: Re: [net-next-2.6 PATCH] igb: add support for reporting 5GT/s
 during probe on PCIe Gen2

From: Ben Hutchings <bhutchings@...arflare.com>
Date: Sat, 10 Apr 2010 00:54:16 +0100

> On Fri, 2010-04-09 at 12:52 -0700, Jeff Kirsher wrote:
>> From: Alexander Duyck <alexander.h.duyck@...el.com>
>> 
>> This change corrects the fact that we were not reporting Gen2 link speeds
>> when we were in fact connected at Gen2 rates.
>> 
>> Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>
>> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
>> ---
>> 
>>  drivers/net/igb/e1000_defines.h |    3 +++
>>  drivers/net/igb/e1000_mac.c     |   19 ++++++++++++++++---
>>  drivers/net/igb/igb_main.c      |    1 +
>>  3 files changed, 20 insertions(+), 3 deletions(-)
>> 
>> diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h
>> index 31d24e0..8e440e8 100644
>> --- a/drivers/net/igb/e1000_defines.h
>> +++ b/drivers/net/igb/e1000_defines.h
>> @@ -615,6 +615,9 @@
>>  
>>  #define PCIE_LINK_WIDTH_MASK         0x3F0
>>  #define PCIE_LINK_WIDTH_SHIFT        4
>> +#define PCIE_LINK_SPEED_MASK         0x0F
>> +#define PCIE_LINK_SPEED_2500         0x01
>> +#define PCIE_LINK_SPEED_5000         0x02
>>  #define PCIE_DEVICE_CONTROL2_16ms    0x0005
> [...]
> 
> These generic definitions belong in <linux/pci_regs.h>; in fact some of
> it is already there.

Agreed, please put these in the PCI header file.
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