netdev - Re: [EXTERNAL] [PATCH v8 net-next 5/5] net: ena: Add PHC documentation

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Message-ID: <20250305175243.GN1955273@unreal>
Date: Wed, 5 Mar 2025 19:52:43 +0200
From: Leon Romanovsky <leon@...nel.org>
To: Andrew Lunn <andrew@...n.ch>
Cc: David Woodhouse <dwmw2@...radead.org>,
	"Arinzon, David" <darinzon@...zon.com>,
	David Miller <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	Richard Cochran <richardcochran@...il.com>,
	"Machulsky, Zorik" <zorik@...zon.com>,
	"Matushevsky, Alexander" <matua@...zon.com>,
	"Bshara, Saeed" <saeedb@...zon.com>,
	"Wilson, Matt" <msw@...zon.com>,
	"Liguori, Anthony" <aliguori@...zon.com>,
	"Bshara, Nafea" <nafea@...zon.com>,
	"Schmeilin, Evgeny" <evgenys@...zon.com>,
	"Belgazal, Netanel" <netanel@...zon.com>,
	"Saidi, Ali" <alisaidi@...zon.com>,
	"Herrenschmidt, Benjamin" <benh@...zon.com>,
	"Kiyanovski, Arthur" <akiyano@...zon.com>,
	"Dagan, Noam" <ndagan@...zon.com>,
	"Bernstein, Amit" <amitbern@...zon.com>,
	"Allen, Neil" <shayagr@...zon.com>,
	"Ostrovsky, Evgeny" <evostrov@...zon.com>,
	"Tabachnik, Ofir" <ofirt@...zon.com>,
	"Machnikowski, Maciek" <maciek@...hnikowski.net>,
	Rahul Rameshbabu <rrameshbabu@...dia.com>,
	Gal Pressman <gal@...dia.com>,
	Vadim Fedorenko <vadim.fedorenko@...ux.dev>
Subject: Re: [EXTERNAL] [PATCH v8 net-next 5/5] net: ena: Add PHC
 documentation

On Wed, Mar 05, 2025 at 04:35:48PM +0100, Andrew Lunn wrote:
> > If you read the actual code in that patch, there's a hint though.
> > Because the actual process in ena_phc_enable_set() does the following:
> > 
> > +	ena_destroy_device(adapter, false);
> > +	rc = ena_restore_device(adapter);
> > 
> > Is that actually tearing down the whole netdev and recreating it when
> > the PHC enable is flipped?
> 
> Well Jakub said it is a pure clock, not related to the netdev. 

So why are you ready to merge the code which is not netdev, doesn't have
any association with netdev and doesn't follow netdev semantics (no
custom sysfs files)?

Thanks