linux-kernel - Re: [PATCH] net: usb: r8152: Add MAC passthrough support for RTL8153BL

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Date:   Thu, 27 Jan 2022 11:10:12 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Aaron Ma <aaron.ma@...onical.com>
Cc:     Mario.Limonciello@....com, kuba@...nel.org,
        henning.schild@...mens.com, linux-usb@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        davem@...emloft.net, hayeswang@...ltek.com, tiwai@...e.de
Subject: Re: [PATCH] net: usb: r8152: Add MAC passthrough support for
 RTL8153BL

On Thu, Jan 27, 2022 at 06:01:09PM +0800, Aaron Ma wrote:
> RTL8153-BL is used in Lenovo Thunderbolt4 dock.
> Add the support of MAC passthrough.
> This is ported from Realtek Outbox driver r8152.53.56-2.15.0.
> 
> There are 2 kinds of rules for MAC passthrough of Lenovo products,
> 1st USB vendor ID belongs to Lenovo, 2nd the chip of RTL8153-BL
> is dedicated for Lenovo. Check the ocp data first then set ACPI object
> names.
> 
> Suggested-by: Hayes Wang <hayeswang@...ltek.com>
> Signed-off-by: Aaron Ma <aaron.ma@...onical.com>
> ---
>  drivers/net/usb/r8152.c | 44 ++++++++++++++++++++++-------------------
>  1 file changed, 24 insertions(+), 20 deletions(-)
> 
> diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
> index ee41088c5251..df997b330ee4 100644
> --- a/drivers/net/usb/r8152.c
> +++ b/drivers/net/usb/r8152.c
> @@ -718,6 +718,7 @@ enum spd_duplex {
>  #define AD_MASK			0xfee0
>  #define BND_MASK		0x0004
>  #define BD_MASK			0x0001
> +#define BL_MASK                 BIT(3)

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