Commit f7671383 authored by Maciej Szwed's avatar Maciej Szwed Committed by Tomasz Zawadzki
Browse files

nvme: Add spdk_nvme_ns_supports_compare function 



This function returns information if compare
operation is supported by device.

Signed-off-by: default avatarMaciej Szwed <maciej.szwed@intel.com>
Change-Id: I321e9bf6d146ac8d14ea4549cb4380735b30be6f

Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/477925


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
parent b95de9a3

include/spdk/nvme.h

+12 −0
Original line number Diff line number Diff line
@@ -1889,6 +1889,18 @@ uint32_t spdk_nvme_ns_get_md_size(struct spdk_nvme_ns *ns); 
 */

bool spdk_nvme_ns_supports_extended_lba(struct spdk_nvme_ns *ns);



/**

 * Check whether if the namespace supports compare operation

 *

 * This function is thread safe and can be called at any point while the controller

 * is attached to the SPDK NVMe driver.

 *

 * \param ns Namespace to query.

 *

 * \return true if the namespace supports compare operation, or false otherwise.

 */

bool spdk_nvme_ns_supports_compare(struct spdk_nvme_ns *ns);



/**

 * Determine the value returned when reading deallocated blocks.

 *

lib/nvme/nvme_ns.c

+6 −0
Original line number Diff line number Diff line
@@ -250,6 +250,12 @@ spdk_nvme_ns_supports_extended_lba(struct spdk_nvme_ns *ns) 
	return (ns->flags & SPDK_NVME_NS_EXTENDED_LBA_SUPPORTED) ? true : false;

}



bool

spdk_nvme_ns_supports_compare(struct spdk_nvme_ns *ns)

{

	return (ns->flags & SPDK_NVME_NS_COMPARE_SUPPORTED) ? true : false;

}



uint32_t

spdk_nvme_ns_get_md_size(struct spdk_nvme_ns *ns)

{