diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2019-08-07 17:51:20 +1000 |
|---|---|---|
| committer | Sagi Grimberg <sagi@grimberg.me> | 2019-08-29 12:55:02 -0700 |
| commit | c1e0cc7e1d319936271dfdd0a9405275c8091381 (patch) | |
| tree | 56ffaf9c071de640780d7f4e703262b9cfddeee0 /include/linux/nvme.h | |
| parent | 8a1d09a668e7e245b8e4131cc9017c63fee02ee5 (diff) | |
nvme-pci: Add support for variable IO SQ element size
The size of a submission queue element should always be 6 (64 bytes)
by spec.
However some controllers such as Apple's are not properly implementing
the standard and require a different size.
This provides the ground work for the subsequent quirks for these
controllers.
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>
Diffstat (limited to 'include/linux/nvme.h')
| -rw-r--r-- | include/linux/nvme.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/nvme.h b/include/linux/nvme.h index 32c25b46ae63..f61d6906e59d 100644 --- a/include/linux/nvme.h +++ b/include/linux/nvme.h @@ -140,6 +140,7 @@ enum { * Submission and Completion Queue Entry Sizes for the NVM command set. * (In bytes and specified as a power of two (2^n)). */ +#define NVME_ADM_SQES 6 #define NVME_NVM_IOSQES 6 #define NVME_NVM_IOCQES 4 |