[RFC] add 'miitool' command to view media-independent interface status

[Antony Pavlov]

On 9 October 2012 00:47, Sascha Hauer <s.hauer at pengutronix.de> wrote:
> Hi Antony,
>
> On Mon, Oct 08, 2012 at 12:17:33AM +0400, Antony Pavlov wrote:
>> This command is based on "mii-diag" and "mii-tool" programs.
>>
>> TODO:
>>  * drop MII_ANER_ and MII_AN_, use linux/mii.h macros;
>>  * add routines to manipulate media-independent interface state.
>
> Such a tool is nice to have. Some small comments inline.
>
...
>> +
>> +/* Table of known MII's */
>> +static struct {
>> +     u_short id1, id2;
>> +     u_short mask1, mask2;
>> +     char    *name;
>> +} mii_id[] = {
>> +     { 0x7810, 0x0003, 0xffff, 0xffff, "Level One LXT970A" },
>> +     { 0x7810, 0x0000, 0xffff, 0xfff0, "Level One LXT970/LXT971" },
>> +     { 0x0013, 0x78e0, 0xffff, 0xfff0, "Level One LXT971A" },
>> +};
>
> Maybe we should find a place where other code (phylib?) can use this
> table aswell?

I agree. It is very convinient to use only one place to store the MII
tranceivers database.
But just now we have only one phy driver ("Generic PHY"). It has no
table of know MII.
I have tryed to port drivers/net/phy/lxt.c from linux. But there is no
reason to do it: it contain only generic support for LXT970/971.

IMHO mii_id[] table is a __temporary__ but a good-enough solution.

-- 
Best regards,
  Antony Pavlov