nvme-pci: allow use of cmb on v1.4 controllers
[ Upstream commit 20d3bb92 ] 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>
parent
82ae0714
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