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From: Chaitanya Kulkarni <Chaitanya.Kulkarni@wdc.com>
To: Keith Busch <kbusch@kernel.org>, Alan Adamson <alan.adamson@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>,
	"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
	"axboe@fb.com" <axboe@fb.com>,
	"sagi@grimberg.me" <sagi@grimberg.me>
Subject: Re: [PATCH 0/1] nvme: Export CSTS register via sysfs
Date: Thu, 18 Mar 2021 19:15:41 +0000	[thread overview]
Message-ID: <BYAPR04MB496524879B3C3A1D9F644BAF86699@BYAPR04MB4965.namprd04.prod.outlook.com> (raw)
In-Reply-To: 20210318165213.GA31675@redsun51.ssa.fujisawa.hgst.com

On 3/18/21 09:59, Keith Busch wrote:
>>> So what is this application doings with it?  Should we just have a
>>> ready attribute instead of exporting a raw register encoding?
>> Was using nvme-cli show-regs to manage nvme devices. This is no longer an option.
> Most distributions ship with kernel CONFIG_IO_STRICT_DEVMEM these days,
> so that user command will very rarely work on PCIe targets anymore.
>
> Perhaps we could introduce a driver option allowing read-only mmap on
> this memory?  While you're currently asking for just one register
> attribute, it would be nice if we can make all future requests available
> without piling on more sysfs properties.

This will also avoid further code changes seems very generic to me.



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      parent reply	other threads:[~2021-03-18 19:16 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-17 20:46 [PATCH 0/1] nvme: Export CSTS register via sysfs Alan Adamson
2021-03-17 20:46 ` [PATCH 1/1] " Alan Adamson
2021-03-18  1:06 ` [PATCH 0/1] " Chaitanya Kulkarni
2021-03-18  4:38 ` Christoph Hellwig
2021-03-18 14:19   ` Keith Busch
2021-03-18 16:28   ` Alan Adamson
2021-03-18 16:52     ` Keith Busch
2021-03-18 18:39       ` Alan Adamson
2021-03-18 19:46         ` Keith Busch
2021-03-19  6:51           ` Christoph Hellwig
2021-03-19 15:22             ` Keith Busch
2021-03-19 15:30               ` Christoph Hellwig
2021-03-19 17:21                 ` Alan Adamson
2021-03-19 17:30                   ` Keith Busch
2021-03-19 17:33                     ` Alan Adamson
2021-05-05 18:40                     ` Alan Adamson
2021-05-05 20:11                       ` Keith Busch
2021-05-05 20:23                         ` Alan Adamson
2021-05-05 20:35                           ` Keith Busch
2021-03-18 19:15       ` Chaitanya Kulkarni [this message]

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