From: Jens Axboe <axboe@fb.com>
To: Sagi Grimberg <sagi@grimberg.me>,
Keith Busch <keith.busch@intel.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Damien Le Moal <Damien.LeMoal@wdc.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Paul Pawlowski <paul@mrarm.io>,
Minwoo Im <minwoo.im.dev@gmail.com>,
"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
Keith Busch <kbusch@kernel.org>, "Christoph Hellwig" <hch@lst.de>
Subject: Re: [PATCH v3] nvme-pci: Support shared tags across queues for Apple 2018 controllers
Date: Mon, 5 Aug 2019 19:07:56 +0000 [thread overview]
Message-ID: <caa04d02-05a0-dd1f-2072-df41a21f2aa8@fb.com> (raw)
In-Reply-To: <40a6acc2-beae-3e36-ca20-af5801038a1e@grimberg.me>
On 8/5/19 11:27 AM, Sagi Grimberg wrote:
>
>>> Ping ? I had another look today and I don't feel like mucking around
>>> with all the AQ size logic, AEN magic tag etc... just for that sake of
>>> that Apple gunk. I'm happy to have it give up IO tags, it doesn't seem
>>> to make much of a difference in practice anyway.
>>>
>>> But if you feel strongly about it, then I'll implement the "proper" way
>>> sometimes this week, adding a way to shrink the AQ down to something
>>> like 3 (one admin request, one async event (AEN), and the empty slot)
>>> by making a bunch of the constants involved variables instead.
>>
>> I don't feel too strongly about it. I think your patch is fine, so
>>
>> Acked-by: Keith Busch <keith.busch@intel.com>
>
> Should we pick this up for 5.3-rc?
No, it's not a regression fix. Queue it up for 5.4 instead.
--
Jens Axboe
next prev parent reply other threads:[~2019-08-05 19:09 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-19 5:31 Benjamin Herrenschmidt
2019-07-19 5:45 ` Balbir Singh
2019-07-19 12:28 ` Christoph Hellwig
2019-07-19 13:51 ` Benjamin Herrenschmidt
2019-07-22 21:54 ` Benjamin Herrenschmidt
2019-07-23 1:36 ` Ming Lei
2019-07-30 15:30 ` Keith Busch
2019-07-30 20:15 ` Benjamin Herrenschmidt
2019-07-30 20:28 ` Benjamin Herrenschmidt
2019-08-05 6:49 ` Benjamin Herrenschmidt
2019-08-05 13:49 ` Keith Busch
2019-08-05 18:27 ` Sagi Grimberg
2019-08-05 18:35 ` Keith Busch
2019-08-05 19:07 ` Jens Axboe [this message]
2019-08-05 19:56 ` Sagi Grimberg
2019-08-05 20:07 ` Sagi Grimberg
2019-08-06 5:26 ` Benjamin Herrenschmidt
2019-08-06 5:26 ` Benjamin Herrenschmidt
2019-08-06 5:24 ` Benjamin Herrenschmidt
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