Commit 6abee9a2 authored by Niklas Cassel's avatar Niklas Cassel Committed by Tomasz Zawadzki
Browse files

nvme: add function to get ZNS zone size 



Add a function to get the zone size of a zoned namespace.

Signed-off-by: default avatarNiklas Cassel <niklas.cassel@wdc.com>
Change-Id: I89429fa2fd36307a8b34bdf91e3251c68596a48c
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4791


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Community-CI: Broadcom CI
parent 6511969c

include/spdk/nvme_zns.h

+12 −0
Original line number Diff line number Diff line
@@ -60,6 +60,18 @@ extern "C" { 
 */

const struct spdk_nvme_zns_ns_data *spdk_nvme_zns_ns_get_data(struct spdk_nvme_ns *ns);



/**

 * Get the zone size, in bytes, of the given namespace.

 *

 * 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 the zone size of the given namespace in bytes.

 */

uint64_t spdk_nvme_zns_ns_get_zone_size(struct spdk_nvme_ns *ns);



/**

 * Get the Zoned Namespace Command Set Specific Identify Controller data

 * as defined by the NVMe Zoned Namespace Command Set Specification.

lib/nvme/nvme_zns.c

+9 −0
Original line number Diff line number Diff line
@@ -39,6 +39,15 @@ spdk_nvme_zns_ns_get_data(struct spdk_nvme_ns *ns) 
	return ns->ctrlr->nsdata_zns[ns->id - 1];

}



uint64_t

spdk_nvme_zns_ns_get_zone_size(struct spdk_nvme_ns *ns)

{

	const struct spdk_nvme_zns_ns_data *nsdata_zns = spdk_nvme_zns_ns_get_data(ns);

	const struct spdk_nvme_ns_data *nsdata = spdk_nvme_ns_get_data(ns);



	return nsdata_zns->lbafe[nsdata->flbas.format].zsze * spdk_nvme_ns_get_sector_size(ns);

}



const struct spdk_nvme_zns_ctrlr_data *

spdk_nvme_zns_ctrlr_get_data(struct spdk_nvme_ctrlr *ctrlr)

{

lib/nvme/spdk_nvme.map

+1 −0
Original line number Diff line number Diff line
@@ -160,6 +160,7 @@ 


	# public functions from nvme_zns.h

	spdk_nvme_zns_ns_get_data;

	spdk_nvme_zns_ns_get_zone_size;

	spdk_nvme_zns_ctrlr_get_data;

	spdk_nvme_zns_close_zone;

	spdk_nvme_zns_finish_zone;