From: Christoph Hellwig <hch@lst.de>
To: Filippo Sironi <sironi@amazon.de>
Cc: benh@amazon.com, sagi@grimberg.me, serebrin@amazon.com,
linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org,
axboe@fb.com, kbusch@kernel.org, hch@lst.de, dwmw@amazon.co.uk
Subject: Re: [PATCH v2] nvme: Add 48-bit DMA address quirk for Amazon NVMe controllers
Date: Wed, 10 Feb 2021 08:37:59 +0100 [thread overview]
Message-ID: <20210210073759.GA23269@lst.de> (raw)
In-Reply-To: <20210210003942.25700-1-sironi@amazon.de>
On Wed, Feb 10, 2021 at 01:39:42AM +0100, Filippo Sironi wrote:
> Amazon NVMe controllers do not support 64-bit DMA addresses; they are
> limited to 48-bit DMA addresses. Let's add a quirk to ensure that we
> make use of 48-bit DMA addresses to avoid misbehavior.
This should probably say some, and mention that they do not follow
the spec. But I can fix this up when applying the patch.
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next prev parent reply other threads:[~2021-02-10 7:38 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-03 9:43 [PATCH] nvme: Add 48-bit DMA address quirk Filippo Sironi
2021-02-03 9:51 ` Christoph Hellwig
2021-02-03 11:12 ` Filippo Sironi
2021-02-03 11:15 ` Christoph Hellwig
2021-02-03 11:22 ` Filippo Sironi
2021-02-03 11:26 ` Christoph Hellwig
2021-02-03 16:57 ` Keith Busch
2021-02-10 0:39 ` [PATCH v2] nvme: Add 48-bit DMA address quirk for Amazon NVMe controllers Filippo Sironi
2021-02-10 7:37 ` Christoph Hellwig [this message]
2021-02-10 9:13 ` Filippo Sironi
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