Commit 9f5852d0 authored by Niklas Cassel's avatar Niklas Cassel Committed by Tomasz Zawadzki
Browse files

bdev/zone: add support for max zone append size 



Add support in bdev_zone.h for getting the maximum zone append data
transfer size.

Signed-off-by: default avatarNiklas Cassel <niklas.cassel@wdc.com>
Change-Id: I61203e64d51601232c6578a090fa52975364c1f3
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6910


Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
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>
parent 20a01a04

include/spdk/bdev_module.h

+5 −0
Original line number Diff line number Diff line
@@ -361,6 +361,11 @@ struct spdk_bdev { 
	 */

	uint64_t zone_size;



	/**

	 * Maximum zone append data transfer size (in blocks).

	 */

	uint32_t max_zone_append_size;



	/**

	 * Maximum number of open zones.

	 */

include/spdk/bdev_zone.h

+10 −0
Original line number Diff line number Diff line
@@ -84,6 +84,16 @@ struct spdk_bdev_zone_info { 
 */

uint64_t spdk_bdev_get_zone_size(const struct spdk_bdev *bdev);



/**

 * Get device maximum zone append data transfer size in logical blocks.

 *

 * If this value is 0, there is no limit.

 *

 * \param bdev Block device to query.

 * \return Maximum zone append data transfer size for this zoned device in logical blocks.

 */

uint32_t spdk_bdev_get_max_zone_append_size(const struct spdk_bdev *bdev);



/**

 * Get device maximum number of open zones.

 *

lib/bdev/bdev_zone.c

+6 −0
Original line number Diff line number Diff line
@@ -44,6 +44,12 @@ spdk_bdev_get_zone_size(const struct spdk_bdev *bdev) 
	return bdev->zone_size;

}



uint32_t

spdk_bdev_get_max_zone_append_size(const struct spdk_bdev *bdev)

{

	return bdev->max_zone_append_size;

}



uint32_t

spdk_bdev_get_max_open_zones(const struct spdk_bdev *bdev)

{

lib/bdev/spdk_bdev.map

+1 −0
Original line number Diff line number Diff line
@@ -143,6 +143,7 @@ 


	# Public functions in bdev_zone.h

	spdk_bdev_get_zone_size;

	spdk_bdev_get_max_zone_append_size;

	spdk_bdev_get_max_open_zones;

	spdk_bdev_get_max_active_zones;

	spdk_bdev_get_optimal_open_zones;

module/bdev/nvme/bdev_ocssd.c

+3 −0
Original line number Diff line number Diff line
@@ -1305,6 +1305,9 @@ bdev_ocssd_create_bdev(const char *ctrlr_name, const char *bdev_name, uint32_t n 
	nvme_bdev->disk.blockcnt = geometry->num_grp * geometry->num_pu *

				   geometry->num_chk * geometry->clba;

	nvme_bdev->disk.zone_size = geometry->clba;

	/* Since zone appends are emulated using writes, use max io xfer size (but in blocks) */

	nvme_bdev->disk.max_zone_append_size = spdk_nvme_ns_get_max_io_xfer_size(ns) /

					       spdk_nvme_ns_get_extended_sector_size(ns);

	nvme_bdev->disk.max_open_zones = geometry->maxoc;

	nvme_bdev->disk.optimal_open_zones = geometry->num_grp * geometry->num_pu;

	nvme_bdev->disk.write_unit_size = geometry->ws_opt;