[PULL 1/5] nvme: fix NSSRS offset in CAP register

Max Reitz posted 5 patches 6 years, 3 months ago
Maintainers: Stefan Hajnoczi <stefanha@redhat.com>, Max Reitz <mreitz@redhat.com>, Fam Zheng <fam@euphon.net>, Kevin Wolf <kwolf@redhat.com>
[PULL 1/5] nvme: fix NSSRS offset in CAP register
Posted by Max Reitz 6 years, 3 months ago
From: Klaus Jensen <its@irrelevant.dk>

Fix the offset of the NSSRS field the CAP register.

From NVME 1.4, section 3 ("Controller Registers"), subsection 3.1.1
("Offset 0h: CAP – Controller Capabilities") CAP_NSSRS_SHIFT is bit 36,
not 33.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reported-by: Javier Gonzalez <javier.gonz@samsung.com>
Message-id: 20191023073315.446534-1-its@irrelevant.dk
Reviewed-by: John Snow <jsnow@redhat.com>
[mreitz: Added John's note on the location in the specification where
         this information can be found]
Signed-off-by: Max Reitz <mreitz@redhat.com>
---
 include/block/nvme.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/block/nvme.h b/include/block/nvme.h
index ab5943b90a..8fb941c653 100644
--- a/include/block/nvme.h
+++ b/include/block/nvme.h
@@ -23,7 +23,7 @@ enum NvmeCapShift {
     CAP_AMS_SHIFT      = 17,
     CAP_TO_SHIFT       = 24,
     CAP_DSTRD_SHIFT    = 32,
-    CAP_NSSRS_SHIFT    = 33,
+    CAP_NSSRS_SHIFT    = 36,
     CAP_CSS_SHIFT      = 37,
     CAP_MPSMIN_SHIFT   = 48,
     CAP_MPSMAX_SHIFT   = 52,
-- 
2.21.0