Aaron Ma <aaron.ma@xxxxxxxxxxxxx>
> Sent: Thursday, January 27, 2022 4:13 PM
[...]
> > I don't think the feature of MAC passthrough address is maintained
> > by Realtek. Especially, there is no uniform way about it. The
> > different companies have to maintain their own ways by themselves.
> >
> > Realtek could provide the method of finding out the specific device
> > for Lenovo. You could check USB OCP 0xD81F bit 3. For example,
> >
> > ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_MISC_1);
> > if (tp->version == RTL_VER_09 && (ocp_data & BIT(3))) {
> > /* This is the RTL8153B for Lenovo. */
> > }
> >
>
> May I use the code from Realtek Outbox driver to implement the MAPT?
>
> If so, allow me to write a patch and send here to review.
Sure.
However, the outbox driver has a mistake.
The mac_obj_name with "\\_SB.AMAC" is used by Dell.
I think the device of Lenovo should use "\\MACA" only. Right?
The easiest way is to set tp->lenovo_macpassthru for RTL8153BL.
For example,
ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_MISC_1);
if (tp->version == RTL_VER_09 && (ocp_data & BIT(3)))
tp->lenovo_macpassthru = 1;
Best Regards,
Hayes
