Re: [PATCH v2 net-next 01/14] qed: convert link mode from u32 to bitmap

From: Alexander Lobakin
Date: Mon Jul 20 2020 - 05:23:49 EST


Date: Sun, 19 Jul 2020 23:21:00 +0200
From: Andrew Lunn <andrew@xxxxxxx>

> On Sun, Jul 19, 2020 at 11:14:40PM +0300, Alexander Lobakin wrote:
>> Currently qed driver already ran out of 32 bits to store link modes,
>> and this doesn't allow to add and support more speeds.
>> Convert link mode to bitmap that will always have enough space for
>> any number of speeds and modes.
>
> Hi Alexander

Hi Andrew!

> Why not just throw away all these QED_LM_ defines and use the kernel
> link modes? The fact you are changing the u32 to a bitmap suggests the
> hardware does not use them.

I've just double-checked, and you're right, management firmware operates
with NVM_* definitions, while QED_LM_* are used only in QED and QEDE to
fill Ethtool link settings.
I didn't notice this while working on the series, but it would be really
a lot better to just use generic definitions.
So I'll send v3 soon.

> Andrew

Thanks,
Al