netdev - Re: [PATCH v2 net 3/6] net: enetc: take the MDIO lock only once per NAPI poll cycle

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Date:   Fri, 26 Feb 2021 01:08:20 +0200
From:   Vladimir Oltean <olteanv@...il.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        Michael Walle <michael@...le.cc>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandru Marginean <alexandru.marginean@....com>,
        Vladimir Oltean <vladimir.oltean@....com>
Subject: Re: [PATCH v2 net 3/6] net: enetc: take the MDIO lock only once per
 NAPI poll cycle

On Fri, Feb 26, 2021 at 01:00:26AM +0200, Vladimir Oltean wrote:
> The goal is to eventually get rid of all the _hot stuff and always take
> the lock from the top level, this would allow us to do more register
> read/write batching and that would amortize the cost of the locking
> overall.

Of course when I say 'get rid of the hot stuff', I mean get rid of the
'hot' _naming_ and not the behavior, since the goal is for all register
accessors to be 'hot' aka unlocked.