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nvme: Document new cuse functions

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Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/472834 (master)

(cherry picked from commit 368de579b629c2b348391bbacd414811e90ce3af)
Change-Id: I2644d7909899fd7aa4e9690eec0fe20de5f17289
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/472964
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This commit is contained in:
Ben Walker 2019-10-29 14:32:47 -07:00 committed by Tomasz Zawadzki
parent 5a472f2779
commit 0680344863
1 changed files with 22 additions and 0 deletions
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22
include/spdk/nvme.h
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@ -2585,7 +2585,29 @@ char *spdk_nvme_cuse_get_ctrlr_name(struct spdk_nvme_ctrlr *ctrlr);
*/
char *spdk_nvme_cuse_get_ns_name(struct spdk_nvme_ctrlr *ctrlr, uint32_t nsid);
/**
* Create a character device at the path specified (Experimental)
*
* The character device can handle ioctls and is compatible with a standard
* Linux kernel NVMe device. Tools such as nvme-cli can be used to configure
* SPDK devices through this interface.
*
* The user is expected to be polling the admin qpair for this controller periodically
* for the CUSE device to function.
*
* \param ctrlr Opaque handle to the NVMe controller.
* \param dev_path The path at which the device should appear. Ex. /dev/spdk/nvme0n1
*
* \return 0 on success. Negated errno on failure.
*/
int spdk_nvme_cuse_register(struct spdk_nvme_ctrlr *ctrlr, const char *dev_path);
/**
* Remove a previously created character device (Experimental)
*
* \param ctrlr Opaque handle to the NVMe controller.
*
*/
void spdk_nvme_cuse_unregister(struct spdk_nvme_ctrlr *ctrlr);
#ifdef __cplusplus