netdev - Re: [EXT] [PATCH net-next v3 0/3] FEC MDIO speedups

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Date:   Mon, 20 Apr 2020 12:38:11 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     fugang.duan@....com
Cc:     andrew@...n.ch, netdev@...r.kernel.org, f.fainelli@...il.com,
        hkallweit1@...il.com
Subject: Re: [EXT] [PATCH net-next v3 0/3] FEC MDIO speedups

From: Andy Duan <fugang.duan@....com>
Date: Mon, 20 Apr 2020 01:42:47 +0000

> From: Andrew Lunn <andrew@...n.ch> Sent: Monday, April 20, 2020 6:04 AM
>> This patchset gives a number of speedups for MDIO with the FEC.
>> Replacing interrupt driven with polled IO brings a big speedup due to the
>> overheads of interrupts compared to the short time interval.
>> Clocking the bus faster, when the MDIO targets supports it, can double the
>> transfer rate. And suppressing the preamble, if devices support it, makes each
>> transaction faster.
>> 
>> By default the MDIO clock remains 2.5MHz and preables are used. But these
>> can now be controlled from the device tree. Since these are generic
>> properties applicable to more than just FEC, these have been added to the
>> generic MDIO binding documentation.
>> 
>> v2:
>> readl_poll_timeout()
>> Add patches to set bus frequency and preamble disable
>> 
>> v3:
>> Add Reviewed tags
>> uS->us
>> readl_poll_timeout_atomic()
>> Extend DT binding documentation
>> 
>> Andrew Lunn (3):
>>   net: ethernet: fec: Replace interrupt driven MDIO with polled IO
>>   net: ethernet: fec: Allow configuration of MDIO bus speed
>>   net: ethernet: fec: Allow the MDIO preamble to be disabled
> 
> The v3 version seems good.
> Thanks, Andrew.
> 
> Acked-by: Fugang Duan <fugang.duan@....com>

Series applied, thanks everyone.