Re: [PATCH net-next v3 01/10] net: dsa: mv88e6xxx: add mv88e6250_g1_ieee_pri_map

From: Vivien Didelot
Date: Mon Jun 03 2019 - 11:41:06 EST


Hi Rasmus,

On Mon, 3 Jun 2019 14:42:12 +0000, Rasmus Villemoes <rasmus.villemoes@xxxxxxxxx> wrote:
> Quite a few of the existing supported chips that use
> mv88e6085_g1_ieee_pri_map as ->ieee_pri_map (including, incidentally,
> mv88e6085 itself) actually have a reset value of 0xfa50 in the
> G1_IEEE_PRI register.
>
> The data sheet for the mv88e6095, however, does describe a reset value
> of 0xfa41.
>
> So rather than changing the value in the existing callback, introduce
> a new variant with the 0xfa50 value. That will be used by the upcoming
> mv88e6250, and existing chips can be switched over one by one,
> preferably double-checking both the data sheet and actual hardware in
> each case - if anybody actually feels this is important enough to
> care.

Given your previous thread on this topic, I'd prefer that you include
a first patch which implements mv88e6095_g1_ieee_pri_map() using 0xfa41
and update mv88e{6092,6095}_ops to use it, then a second one which fixes
mv88e6085_g1_ieee_pri_map to use 0xfa50. Then mv88e6250_ops can use it.


Thanks,
Vivien