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From: Michael Chan <michael.chan@broadcom.com>
Date: Wed, 10 Jan 2024 09:01:28 -0800
Message-ID: <CACKFLikZoXq17tp_152Oi4eYPd8BQLAv+LTxDgb4sHxX+8XiSA@mail.gmail.com>
Subject: Re: [PATCH] tg3: add new module param to force device power down on reboot
To: Heiner Kallweit <hkallweit1@gmail.com>
Cc: Pavan Chebbi <pavan.chebbi@broadcom.com>, Andrea Fois <andrea.fois@eventsense.it>, 
	Michael Chan <mchan@broadcom.com>, "David S. Miller" <davem@davemloft.net>, 
	Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, 
	George Shuklin <george.shuklin@gmail.com>, netdev@vger.kernel.org, 
	linux-kernel@vger.kernel.org
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On Tue, Jan 9, 2024 at 11:34=E2=80=AFPM Heiner Kallweit <hkallweit1@gmail.c=
om> wrote:
>
> On 10.01.2024 08:17, Michael Chan wrote:
> > We already call dev_close() which will call tg3_close() -> tg3_stop()
> > a few lines above.
>
> tg3_stop() calls tg3_disable_ints(), so I wonder how a MSI interrupt can
> occur after that. Does tg3_disable_ints() disable interrupts synchronousl=
y?
> Or maybe some kind of commit is needed?
>

Yes, it is synchronous.  The tg3_full_lock() call before
tg3_disable_ints() makes it synchronous.

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