[PATCH] net/ftgmac100: Rewrite the driver

[Cédric Le Goater]

On 03/28/2017 08:47 AM, Cédric Le Goater wrote:
> On 03/28/2017 08:32 AM, Benjamin Herrenschmidt wrote:
>> On Tue, 2017-03-28 at 08:28 +0200, Cédric Le Goater wrote:
>>> Simply, 'iperf -s' on the BMC  and 'iperf -c' on some other machine.
>>>
>>> Your v3 fixed the issue and iperf now finds :
>>>
>>>         ~76 Mbits/sec on the AST2500 
>>>         ~32 Mbits/sec on the AST2400.
>>
>> Remove all the stupid debug options in your kernel config, and you'll
>> get >400Mbit on the 2500 :-) I get about 200 on a Firestone with a
>> 2400 (after manually hacking the RGMII clock delays to make it work
>> at 1000bT).
> 
> Sigh. is it that bad :/ OK. Let's do some tuning.  I will tell you
> what I get.

so, with a large cleanup under "Kernel hacking", we get close to 400Mbit
on the 2500.

Cheers,
C.