From: Keith Busch <kbusch@kernel.org>
To: "Singh, Balbir" <sblbir@amazon.com>
Cc: "axboe@fb.com" <axboe@fb.com>,
"sblbir@amzn.com" <sblbir@amzn.com>, "hch@lst.de" <hch@lst.de>,
"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
"sagi@grimberg.me" <sagi@grimberg.me>
Subject: Re: [PATCH v2 2/2] nvme/host/core: Allow overriding of wait_ready timeout
Date: Mon, 16 Sep 2019 19:14:41 -0600 [thread overview]
Message-ID: <20190917011441.GA31163@C02WT3WMHTD6> (raw)
In-Reply-To: <b9eb8038c04e3ae87d4f55ea228f8d12ef1ed42a.camel@amazon.com>
On Mon, Sep 16, 2019 at 09:04:31PM +0000, Singh, Balbir wrote:
> I wonder if I should just call it debug_wait_ready_timeout and in the
> comments about the help/description call out that this is a debug
> feature.
>
> What do you suggest?
I recommend going to the vendors that report incorrect timeout values, and
apparently broken controllers that can't initialize, to have them fix
both. If it doesn't initialize in 128 seconds, your only debugging
recourse is to report to the vendor anyway; overriding the timeout to
something under what the device reports it requires doesn't exactly
provide you any additional debugging information.
If you really need the driver to do spec non-compliant behavior, we have
quirks for that.
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next prev parent reply other threads:[~2019-09-17 1:14 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-13 23:36 [PATCH v2 1/2] nvme/host/pci: Fix a race in controller removal Balbir Singh
2019-09-13 23:36 ` [PATCH v2 2/2] nvme/host/core: Allow overriding of wait_ready timeout Balbir Singh
2019-09-16 7:41 ` Christoph Hellwig
2019-09-16 12:33 ` Singh, Balbir
2019-09-16 16:01 ` hch
2019-09-16 21:04 ` Singh, Balbir
2019-09-17 1:14 ` Keith Busch [this message]
2019-09-17 2:56 ` Singh, Balbir
2019-09-17 3:17 ` Bart Van Assche
2019-09-17 5:02 ` Singh, Balbir
2019-09-17 17:21 ` James Smart
2019-09-17 20:08 ` James Smart
2019-09-17 3:54 ` Keith Busch
2019-09-16 7:49 ` [PATCH v2 1/2] nvme/host/pci: Fix a race in controller removal Christoph Hellwig
2019-09-16 12:07 ` Singh, Balbir
2019-09-16 15:40 ` Bart Van Assche
2019-09-16 19:38 ` Singh, Balbir
2019-09-16 19:56 ` Bart Van Assche
2019-09-16 20:40 ` Singh, Balbir
2019-09-17 17:55 ` Bart Van Assche
2019-09-17 20:30 ` Keith Busch
2019-09-17 20:44 ` Singh, Balbir
2019-09-16 20:07 ` Keith Busch
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