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nvme: add spdk_nvme_zns_ns_get_zone_size_sectors()

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Sometimes it is more optimal to get the zone size in number
of sectors, instead of in number of bytes.

Therefore, add a new spdk_nvme_zns_ns_get_zone_size_sectors()
function to get zone size in number of sectors.

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Change-Id: I0fe67e00a3d74dd27acfc895ae97448d995b89a3
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6416
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This commit is contained in:
Niklas Cassel 2021-02-15 13:50:14 +00:00 committed by Tomasz Zawadzki
parent 8f5b48f8fd
commit 9a800c38f5
3 changed files with 21 additions and 2 deletions
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12
include/spdk/nvme_zns.h
View File

@ -60,6 +60,18 @@ extern "C" {
*/ */
const struct spdk_nvme_zns_ns_data *spdk_nvme_zns_ns_get_data(struct spdk_nvme_ns *ns); const struct spdk_nvme_zns_ns_data *spdk_nvme_zns_ns_get_data(struct spdk_nvme_ns *ns);
/**
* Get the zone size, in number of sectors, 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 number of sectors.
*/
uint64_t spdk_nvme_zns_ns_get_zone_size_sectors(struct spdk_nvme_ns *ns);
/** /**
* Get the zone size, in bytes, of the given namespace. * Get the zone size, in bytes, of the given namespace.
* *

10
lib/nvme/nvme_zns.c
View File

@ -40,12 +40,18 @@ spdk_nvme_zns_ns_get_data(struct spdk_nvme_ns *ns)
} }
uint64_t uint64_t
spdk_nvme_zns_ns_get_zone_size(struct spdk_nvme_ns *ns) spdk_nvme_zns_ns_get_zone_size_sectors(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_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); 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); return nsdata_zns->lbafe[nsdata->flbas.format].zsze;
}
uint64_t
spdk_nvme_zns_ns_get_zone_size(struct spdk_nvme_ns *ns)
{
return spdk_nvme_zns_ns_get_zone_size_sectors(ns) * spdk_nvme_ns_get_sector_size(ns);
} }
uint64_t uint64_t

1
lib/nvme/spdk_nvme.map
View File

@ -168,6 +168,7 @@
# public functions from nvme_zns.h # public functions from nvme_zns.h
spdk_nvme_zns_ns_get_data; spdk_nvme_zns_ns_get_data;
spdk_nvme_zns_ns_get_zone_size_sectors;
spdk_nvme_zns_ns_get_zone_size; spdk_nvme_zns_ns_get_zone_size;
spdk_nvme_zns_ns_get_num_zones; spdk_nvme_zns_ns_get_num_zones;
spdk_nvme_zns_ctrlr_get_data; spdk_nvme_zns_ctrlr_get_data;