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| author | Matias Bjørling <matias@cnexlabs.com> | 2017-01-31 15:17:16 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-01-31 18:32:13 +0300 |
| commit | 84d4add793c65b5bda802dcefcf0d7ab1a8e22ed (patch) | |
| tree | eac40d17cd823530c96715719473cb142c9918e1 /drivers/nvme/host/nvme.h | |
| parent | 19bd6fe73ca812964963aa30827cff9aae64a715 (diff) | |
| download | linux-84d4add793c65b5bda802dcefcf0d7ab1a8e22ed.tar.xz | |
lightnvm: add ioctls for vector I/Os
Enable user-space to issue vector I/O commands through ioctls. To issue
a vector I/O, the ppa list with addresses is also required and must be
mapped for the controller to access.
For each ioctl, the result and status bits are returned as well, such
that user-space can retrieve the open-channel SSD completion bits.
The implementation covers the traditional use-cases of bad block
management, and vectored read/write/erase.
Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
Metadata implementation, test, and fixes.
Signed-off-by: Simon A.F. Lund <slund@cnexlabs.com>
Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/nvme/host/nvme.h')
| -rw-r--r-- | drivers/nvme/host/nvme.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 6377e14586dc..330713c4abdb 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -326,6 +326,7 @@ int nvme_nvm_register(struct nvme_ns *ns, char *disk_name, int node); void nvme_nvm_unregister(struct nvme_ns *ns); int nvme_nvm_register_sysfs(struct nvme_ns *ns); void nvme_nvm_unregister_sysfs(struct nvme_ns *ns); +int nvme_nvm_ioctl(struct nvme_ns *ns, unsigned int cmd, unsigned long arg); #else static inline int nvme_nvm_register(struct nvme_ns *ns, char *disk_name, int node) @@ -343,6 +344,11 @@ static inline int nvme_nvm_ns_supported(struct nvme_ns *ns, struct nvme_id_ns *i { return 0; } +static inline int nvme_nvm_ioctl(struct nvme_ns *ns, unsigned int cmd, + unsigned long arg) +{ + return -ENOTTY; +} #endif /* CONFIG_NVM */ static inline struct nvme_ns *nvme_get_ns_from_dev(struct device *dev) |