[9front] Fields in /net/ether0/ifstats

[9front] Fields in /net/ether0/ifstats

[Rocky Hotas]

Hello!

The file /net/ether0/ifstats in the Ethernet device interface gives some
information about the device and the packets.

Are its fields documented somewhere? I tried googling them, but with no
results.

In particular, what is the contents of `eeprom' and `phy'? What do they
represent?

Bye,

Rocky

Re: [9front] Fields in /net/ether0/ifstats

[adventures in9]

The /net/etherN/ifstats file is particular to each driver.  So to
understand it you would have to read the code for that particular
driver.

The exception is for wifi, where it is used for scans and what AP you
are connected to.

/net/etherN/stats is set by the OS.  It is mentioned in ether(3), but
not much because it is pretty self explanatory.


On Thu, May 2, 2024 at 1:43 PM Rocky Hotas <rockyhotas@firemail.cc> wrote:
>
> Hello!
>
> The file /net/ether0/ifstats in the Ethernet device interface gives some
> information about the device and the packets.
>
> Are its fields documented somewhere? I tried googling them, but with no
> results.
>
> In particular, what is the contents of `eeprom' and `phy'? What do they
> represent?
>
> Bye,
>
> Rocky

Re: Re: [9front] Fields in /net/ether0/ifstats

[Rocky Hotas]

On mag 02 13:58, adventures in9 wrote:
> The /net/etherN/ifstats file is particular to each driver.  So to
> understand it you would have to read the code for that particular
> driver.

Ok! I found several files in the sourcecode.

In 9front/sys/src/9/pc:

  ether2000.c
  ether2114x.c
  ether589.c
  ...

Then, 9front/sys/src/9/port/ethermii.c.

Probably ethermii.c is common to them, while those in
9front/sys/src/9/pc are the actual drivers. If so, how can I determine
which is the driver currently in use?

> The exception is for wifi, where it is used for scans and what AP you
> are connected to.

In this case it is a cable (Ethernet) connection.

Thank you!

Rocky

Re: Re: Re: [9front] Fields in /net/ether0/ifstats

[Rocky Hotas]

On mag 03 11:30, Rocky Hotas wrote:
> If so, how can I determine
> which is the driver currently in use?

Some updates: `pci -v' shows

Intel Corporation 82540EM Gigabit Ethernet Controller

whose driver is

9front/sys/src/9/pc/etherigbe.c

Probably `eeprom' and `phy' in /net/ether0/ifstats represent the
contents of registers. From the sourcecode etherigbe.c I can not
immediately determine how they are printed, but I'll try to figure it
out.

Thanks for your hints!

Rocky