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authorMax Gurtovoy <maxg@mellanox.com>2017-08-13 19:21:06 +0300
committerSagi Grimberg <sagi@grimberg.me>2017-08-28 23:00:38 +0300
commitad4e05b24c428d6125f6f10bd300600cae5079d4 (patch)
tree0fc86f8b227a59ffa9f9f3175f5ecef506d8bf09 /include/linux/nvme.h
parentcaaa15c5097d58545075a8bbdf208078b87d5f28 (diff)
nvme: add symbolic constants for CC identifiers
Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'include/linux/nvme.h')
-rw-r--r--include/linux/nvme.h24
1 files changed, 15 insertions, 9 deletions
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index a12b47073273..7b4322dc2975 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -135,16 +135,22 @@ enum {
enum {
NVME_CC_ENABLE = 1 << 0,
NVME_CC_CSS_NVM = 0 << 4,
+ NVME_CC_EN_SHIFT = 0,
+ NVME_CC_CSS_SHIFT = 4,
NVME_CC_MPS_SHIFT = 7,
- NVME_CC_ARB_RR = 0 << 11,
- NVME_CC_ARB_WRRU = 1 << 11,
- NVME_CC_ARB_VS = 7 << 11,
- NVME_CC_SHN_NONE = 0 << 14,
- NVME_CC_SHN_NORMAL = 1 << 14,
- NVME_CC_SHN_ABRUPT = 2 << 14,
- NVME_CC_SHN_MASK = 3 << 14,
- NVME_CC_IOSQES = NVME_NVM_IOSQES << 16,
- NVME_CC_IOCQES = NVME_NVM_IOCQES << 20,
+ NVME_CC_AMS_SHIFT = 11,
+ NVME_CC_SHN_SHIFT = 14,
+ NVME_CC_IOSQES_SHIFT = 16,
+ NVME_CC_IOCQES_SHIFT = 20,
+ NVME_CC_ARB_RR = 0 << NVME_CC_AMS_SHIFT,
+ NVME_CC_ARB_WRRU = 1 << NVME_CC_AMS_SHIFT,
+ NVME_CC_ARB_VS = 7 << NVME_CC_AMS_SHIFT,
+ NVME_CC_SHN_NONE = 0 << NVME_CC_SHN_SHIFT,
+ NVME_CC_SHN_NORMAL = 1 << NVME_CC_SHN_SHIFT,
+ NVME_CC_SHN_ABRUPT = 2 << NVME_CC_SHN_SHIFT,
+ NVME_CC_SHN_MASK = 3 << NVME_CC_SHN_SHIFT,
+ NVME_CC_IOSQES = NVME_NVM_IOSQES << NVME_CC_IOSQES_SHIFT,
+ NVME_CC_IOCQES = NVME_NVM_IOCQES << NVME_CC_IOCQES_SHIFT,
NVME_CSTS_RDY = 1 << 0,
NVME_CSTS_CFS = 1 << 1,
NVME_CSTS_NSSRO = 1 << 4,