nvme-pci: Add support for Apple 2018+ models

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Based on reverse engineering and original patch by

Paul Pawlowski <paul@mrarm.io>

This adds support for Apple weird implementation of NVME in their
2018 or later machines. It accounts for the twice-as-big SQ entries
for the IO queues, and the fact that only interrupt vector 0 appears
to function properly.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>

...

This commit is contained in:

Benjamin Herrenschmidt 2019-08-07 17:51:21 +10:00 • committed by Sagi Grimberg

parent c1e0cc7e1d

commit 66341331ba

2 changed files with 30 additions and 1 deletions

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10

drivers/nvme/host/nvme.h

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21

drivers/nvme/host/pci.c

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