netdev - Re: [PATCH AUTOSEL 6.10 03/27] r8169: remove detection of chip version 11 (early RTL8168b)

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Message-ID: <Zrcu7-CfCIoGO18V@sashalap>
Date: Sat, 10 Aug 2024 05:12:15 -0400
From: Sasha Levin <sashal@...nel.org>
To: Heiner Kallweit <hkallweit1@...il.com>
Cc: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	Jakub Kicinski <kuba@...nel.org>, nic_swsd@...ltek.com,
	davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 6.10 03/27] r8169: remove detection of chip
 version 11 (early RTL8168b)

On Mon, Jul 29, 2024 at 10:45:15AM +0200, Heiner Kallweit wrote:
>On 28.07.2024 02:52, Sasha Levin wrote:
>> From: Heiner Kallweit <hkallweit1@...il.com>
>>
>> [ Upstream commit 982300c115d229565d7af8e8b38aa1ee7bb1f5bd ]
>>
>> This early RTL8168b version was the first PCIe chip version, and it's
>> quite quirky. Last sign of life is from more than 15 yrs ago.
>> Let's remove detection of this chip version, we'll see whether anybody
>> complains. If not, support for this chip version can be removed a few
>> kernel versions later.
>>
>> Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
>> Link: https://lore.kernel.org/r/875cdcf4-843c-420a-ad5d-417447b68572@gmail.com
>> Signed-off-by: Jakub Kicinski <kuba@...nel.org>
>> Signed-off-by: Sasha Levin <sashal@...nel.org>
>> ---
>>  drivers/net/ethernet/realtek/r8169_main.c | 4 +++-
>>  1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
>> index 7b9e04884575e..d2d46fe17631a 100644
>> --- a/drivers/net/ethernet/realtek/r8169_main.c
>> +++ b/drivers/net/ethernet/realtek/r8169_main.c
>> @@ -2274,7 +2274,9 @@ static enum mac_version rtl8169_get_mac_version(u16 xid, bool gmii)
>>
>>  		/* 8168B family. */
>>  		{ 0x7c8, 0x380,	RTL_GIGA_MAC_VER_17 },
>> -		{ 0x7c8, 0x300,	RTL_GIGA_MAC_VER_11 },
>> +		/* This one is very old and rare, let's see if anybody complains.
>> +		 * { 0x7c8, 0x300,	RTL_GIGA_MAC_VER_11 },
>> +		 */
>>
>>  		/* 8101 family. */
>>  		{ 0x7c8, 0x448,	RTL_GIGA_MAC_VER_39 },
>
>It may be the case that there are still few users out there with this ancient hw.
>We will know better once 6.11 is out for a few month. In this case we would have to
>revert this change.
>I don't think it's a change which should go to stable.

Sure, I'll drop it.

-- 
Thanks,
Sasha