On 1/8/2021 9:59 AM, Vladimir Oltean wrote:
> From: Vladimir Oltean <vladimir.olt...@nxp.com>
>
> Instead of reading these values from the reference manual and writing
> them down into the driver, it appears that the hardware gives us the
> option of detecting them dynamically.
>
> The number of frame references corresponds to what the reference manual
> notes, however it seems that the frame buffers are reported as slightly
> less than the books would indicate. On VSC9959 (Felix), the books say it
> should have 128KB of packet buffer, but the registers indicate only
> 129840 bytes (126.79 KB). Also, the unit of measurement for FREECNT from
> the documentation of all these devices is incorrect (taken from an older
> generation). This was confirmed by Younes Leroul from Microchip support.
>
> Not having anything better to do with these values at the moment* (this
> will change soon), let's just print them.
>
> *The frame buffer size is, in fact, used to calculate the tail dropping
> watermarks.
>
> Signed-off-by: Vladimir Oltean <vladimir.olt...@nxp.com>
Reviewed-by: Florian Fainelli <f.faine...@gmail.com>
--
Florian
