tree 1011cf611967e70d2619af0806cd1a5511fde319
parent 464fabe4f416ec6ce0a41b09ae2d783e781c5c26
author Jianxiong Gao <jxgao@google.com> 1619717595 +0000
committer Oleksandr Tymoshenko <ovt@google.com> 1641504624 +0000

nvme-pci: set min_align_mask

commit: 3d2d861eb03e8ee96dc430a54361c900cbe28afd

The PRP addressing scheme requires all PRP entries except for the
first one to have a zero offset into the NVMe controller pages (which
can be different from the Linux PAGE_SIZE).  Use the min_align_mask
device parameter to ensure that swiotlb does not change the address
of the buffer modulo the device page size to ensure that the PRPs
won't be malformed.

BUG=b/205968222
TEST=presubmit
RELEASE_NOTE=None
SOURCE=UPSTREAM(2fa0387fa2d00924aca0a5fa4c48eb6a4b3f8731)

cos-patch: lts-refresh
Signed-off-by: Jianxiong Gao <jxgao@google.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Jianxiong Gao <jxgao@google.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change-Id: Ie143450eda4eab2b39396a4ba8e78bf2730ccd2d