diff options
| author | Matias Bjørling <mb@lightnvm.io> | 2018-12-11 20:16:20 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-12-11 20:22:34 +0100 |
| commit | 85136c0102852fe505c0fbd3f1bf9d17038bb94d (patch) | |
| tree | d29935a0632710c0c89212a7bfca66042ae2b834 /drivers/nvme/host/nvme.h | |
| parent | lightnvm: pblk: add comments wrt locking in recovery path (diff) | |
| download | linux-85136c0102852fe505c0fbd3f1bf9d17038bb94d.tar.xz linux-85136c0102852fe505c0fbd3f1bf9d17038bb94d.zip | |
lightnvm: simplify geometry enumeration
Currently the geometry of an OCSSD is enumerated using a two step
approach:
First, nvm_register is called, the OCSSD identify command is issued,
and second the geometry sos and csecs values are read either from the
OCSSD identify if it is a 1.2 drive, or from the NVMe namespace data
structure if it is a 2.0 device.
This patch recombines it into a single step, such that nvm_register can
use the csecs and sos fields independent of which version is used. This
enables one to dynamically size the lightnvm subsystem dma pool.
Reviewed-by: Igor Konopko <igor.j.konopko@intel.com>
Reviewed-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/nvme/host/nvme.h')
| -rw-r--r-- | drivers/nvme/host/nvme.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 8e0ec365ce8d..e20e737ac10c 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -540,13 +540,11 @@ static inline void nvme_mpath_stop(struct nvme_ctrl *ctrl) #endif /* CONFIG_NVME_MULTIPATH */ #ifdef CONFIG_NVM -void nvme_nvm_update_nvm_info(struct nvme_ns *ns); int nvme_nvm_register(struct nvme_ns *ns, char *disk_name, int node); void nvme_nvm_unregister(struct nvme_ns *ns); extern const struct attribute_group nvme_nvm_attr_group; int nvme_nvm_ioctl(struct nvme_ns *ns, unsigned int cmd, unsigned long arg); #else -static inline void nvme_nvm_update_nvm_info(struct nvme_ns *ns) {}; static inline int nvme_nvm_register(struct nvme_ns *ns, char *disk_name, int node) { |