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From:   "Shivamurthy Shastri (sshivamurthy)" <sshivamurthy@micron.com>
To:     Christoph Hellwig <hch@lst.de>
CC:     "kbusch@kernel.org" <kbusch@kernel.org>,
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        "sagi@grimberg.me" <sagi@grimberg.me>,
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Subject: RE: [EXT] Re: [PATCH] nvme: Add abrupt shutdown support
Thread-Topic: [EXT] Re: [PATCH] nvme: Add abrupt shutdown support
Thread-Index: AQHXcYbB/F8jcejucEauG3F+rz+Qo6s0K71g
Date:   Mon, 5 Jul 2021 10:40:21 +0000
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 <20210705101554.GA12803@lst.de>
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Micron Confidential

Hi Christoph,

>=20
>=20
> On Mon, Jul 05, 2021 at 10:11:57AM +0000, shiva.linuxworks@gmail.com wrot=
e:
> > From: Shivamurthy Shastri <sshivamurthy@micron.com>
> >
> > Enabling the abrupt shutdown support. In this shutdown type host does
> > not need to send Delete I/O Submission Queue and Delete I/O Completion
> > queue commands to the device.
>=20
> Why?

This is to achieve faster shutdown at the cost of data in-flight.

As per the spec Deleting Submission queues and Completion queues are not ex=
plicitly=20
mentioned for performing the abrupt shutdown (CC.SHN=3D10b).

Thanks,
Shiva


Micron Confidential