Commit 12359c17 authored by Krzysztof Karas's avatar Krzysztof Karas Committed by Jim Harris
Browse files

bdev/zone_block: generate UUID from parent bdev UUID 



Use base bdev UUID to generate new UUID for zone block bdev.

Change-Id: I0c22a193ba09a786e1ba69cb6e5a51dec2a29caa
Signed-off-by: default avatarKrzysztof Karas <krzysztof.karas@intel.com>
Signed-off-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17128


Reviewed-by: default avatarAleksey Marchuk <alexeymar@nvidia.com>
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
parent 5f544016

module/bdev/zone_block/vbdev_zone_block.c

+15 −0
Original line number Diff line number Diff line
@@ -14,6 +14,9 @@ 


#include "spdk/log.h"



/* This namespace UUID was generated using uuid_generate() method. */

#define BDEV_ZONE_BLOCK_NAMESPACE_UUID "5f3f485a-d6bb-4443-9de7-023683b77389"



static int zone_block_init(void);

static int zone_block_get_ctx_size(void);

static void zone_block_finish(void);
@@ -689,9 +692,12 @@ zone_block_register(const char *base_bdev_name) 
	struct spdk_bdev *base_bdev;

	struct bdev_zone_block_config *name, *tmp;

	struct bdev_zone_block *bdev_node;

	struct spdk_uuid ns_uuid;

	uint64_t zone_size;

	int rc = 0;



	spdk_uuid_parse(&ns_uuid, BDEV_ZONE_BLOCK_NAMESPACE_UUID);



	/* Check our list of names from config versus this bdev and if

	 * there's a match, create the bdev_node & bdev accordingly.

	 */
@@ -780,6 +786,14 @@ zone_block_register(const char *base_bdev_name) 
		bdev_node->bdev.fn_table = &zone_block_fn_table;

		bdev_node->bdev.module = &bdev_zoned_if;



		/* Generate UUID based on namespace UUID + base bdev UUID. */

		rc = spdk_uuid_generate_sha1(&bdev_node->bdev.uuid, &ns_uuid,

					     (const char *)&base_bdev->uuid, sizeof(struct spdk_uuid));

		if (rc) {

			SPDK_ERRLOG("Unable to generate new UUID for zone block bdev\n");

			goto uuid_generation_failed;

		}



		/* bdev specific info */

		bdev_node->bdev.zone_size = zone_size;
@@ -822,6 +836,7 @@ claim_failed: 
	TAILQ_REMOVE(&g_bdev_nodes, bdev_node, link);

	spdk_io_device_unregister(bdev_node, NULL);

zone_info_failed:

uuid_generation_failed:

	free(bdev_node->zones);

calloc_failed:

roundup_failed: