Klaus Jensen 3e554aa3d0 nvme-pci: allow use of cmb on v1.4 controllers ...

[ Upstream commit 20d3bb92e84d417b0494a3b6867f0c86713db257 ]

Since NVMe v1.4 the Controller Memory Buffer must be explicitly enabled
by the host.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
[hch: avoid a local variable and add a comment]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2021-02-07 15:37:16 +01:00

36 KiB

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