DAOS-17321 ddb: Add checksum dump function to ddb vos API

src/include/daos_srv/vos.h

@@ -1,6 +1,6 @@
 /**
  * (C) Copyright 2015-2024 Intel Corporation.
- * (C) Copyright 2025 Hewlett Packard Enterprise Development LP.
+ * (C) Copyright 2025-2026 Hewlett Packard Enterprise Development LP.
  *
  * SPDX-License-Identifier: BSD-2-Clause-Patent
  */
@@ -913,8 +913,8 @@ vos_obj_mark_corruption(daos_handle_t coh, daos_epoch_t epoch, uint32_t pm_ver,
  * \param[in] nr	Number of I/O descriptors in \a ios.
  * \param[in,out] iods	Array of I/O descriptors. The returned record sizes are also restored in
  * 			this parameter.
- * \param[in] vos_flags	VOS fetch flags, VOS cond flags, VOS_OF_FETCH_SIZE_ONLY or
- * 			VOS_OF_FETCH_RECX_LIST.
+ * \param[in] vos_flags	VOS fetch flags, VOS cond flags, VOS_OF_FETCH_SIZE_ONLY,
+ * 			VOS_OF_FETCH_RECX_LIST or VOS_OF_FETCH_CSUM.
  * \param[in] shadows	Optional shadow recx/epoch lists, one for each iod.
  *			data of extents covered by these should not be returned
  *			by fetch function. Only used for EC obj degraded fetch.

src/include/daos_srv/vos_types.h

@@ -260,49 +260,51 @@ typedef enum {
 
 enum {
 	/** Conditional Op: Punch key if it exists, fail otherwise */
-	VOS_OF_COND_PUNCH		= DAOS_COND_PUNCH,
+	VOS_OF_COND_PUNCH = DAOS_COND_PUNCH,
 	/** Conditional Op: Insert dkey if it doesn't exist, fail otherwise */
-	VOS_OF_COND_DKEY_INSERT		= DAOS_COND_DKEY_INSERT,
+	VOS_OF_COND_DKEY_INSERT = DAOS_COND_DKEY_INSERT,
 	/** Conditional Op: Update dkey if it exists, fail otherwise */
-	VOS_OF_COND_DKEY_UPDATE		= DAOS_COND_DKEY_UPDATE,
+	VOS_OF_COND_DKEY_UPDATE = DAOS_COND_DKEY_UPDATE,
 	/** Conditional Op: Fetch dkey if it exists, fail otherwise */
-	VOS_OF_COND_DKEY_FETCH		= DAOS_COND_DKEY_FETCH,
+	VOS_OF_COND_DKEY_FETCH = DAOS_COND_DKEY_FETCH,
 	/** Conditional Op: Insert akey if it doesn't exist, fail otherwise */
-	VOS_OF_COND_AKEY_INSERT		= DAOS_COND_AKEY_INSERT,
+	VOS_OF_COND_AKEY_INSERT = DAOS_COND_AKEY_INSERT,
 	/** Conditional Op: Update akey if it exists, fail otherwise */
-	VOS_OF_COND_AKEY_UPDATE		= DAOS_COND_AKEY_UPDATE,
+	VOS_OF_COND_AKEY_UPDATE = DAOS_COND_AKEY_UPDATE,
 	/** Conditional Op: Fetch akey if it exists, fail otherwise */
-	VOS_OF_COND_AKEY_FETCH		= DAOS_COND_AKEY_FETCH,
+	VOS_OF_COND_AKEY_FETCH = DAOS_COND_AKEY_FETCH,
 	/** Indicates akey conditions are specified in iod_flags */
-	VOS_OF_COND_PER_AKEY		= DAOS_COND_PER_AKEY,
+	VOS_OF_COND_PER_AKEY = DAOS_COND_PER_AKEY,
 	/* critical update - skip checks on SCM system/held space */
-	VOS_OF_CRIT			= (1 << 8),
+	VOS_OF_CRIT = (1 << 8),
 	/** Instead of update or punch of extents, remove all extents
 	 * under the specified range. Intended for internal use only.
 	 */
-	VOS_OF_REMOVE			= (1 << 9),
+	VOS_OF_REMOVE = (1 << 9),
 	/* only query iod_size */
-	VOS_OF_FETCH_SIZE_ONLY		= (1 << 10),
+	VOS_OF_FETCH_SIZE_ONLY = (1 << 10),
 	/* query recx list */
-	VOS_OF_FETCH_RECX_LIST		= (1 << 11),
+	VOS_OF_FETCH_RECX_LIST = (1 << 11),
 	/* only set read TS */
-	VOS_OF_FETCH_SET_TS_ONLY	= (1 << 12),
+	VOS_OF_FETCH_SET_TS_ONLY = (1 << 12),
 	/* check the target (obj/dkey/akey) existence */
-	VOS_OF_FETCH_CHECK_EXISTENCE	= (1 << 13),
+	VOS_OF_FETCH_CHECK_EXISTENCE = (1 << 13),
 	/** Set when propagating a punch that results in empty subtree */
-	VOS_OF_PUNCH_PROPAGATE		= (1 << 14),
+	VOS_OF_PUNCH_PROPAGATE = (1 << 14),
 	/** replay punch (underwrite) */
-	VOS_OF_REPLAY_PC		= (1 << 15),
+	VOS_OF_REPLAY_PC = (1 << 15),
 	/** Dedup update mode */
-	VOS_OF_DEDUP			= (1 << 16),
+	VOS_OF_DEDUP = (1 << 16),
 	/** Dedup update with memcmp verify mode */
-	VOS_OF_DEDUP_VERIFY		= (1 << 17),
+	VOS_OF_DEDUP_VERIFY = (1 << 17),
 	/** Ignore fetch only used by shadow fetch to ignore the evt fetch */
-	VOS_OF_SKIP_FETCH		= (1 << 18),
+	VOS_OF_SKIP_FETCH = (1 << 18),
 	/** Operation on EC object (currently only applies to update) */
-	VOS_OF_EC			= (1 << 19),
+	VOS_OF_EC = (1 << 19),
 	/** Update from rebuild */
-	VOS_OF_REBUILD			= (1 << 20),
+	VOS_OF_REBUILD = (1 << 20),
+	/* only query for checksums */
+	VOS_OF_FETCH_CSUM = (1 << 21),
 };
 
 enum {

src/vos/tests/vos_tests.c

@@ -1,6 +1,6 @@
 /**
  * (C) Copyright 2016-2023 Intel Corporation.
- * (C) Copyright 2025 Hewlett Packard Enterprise Development LP.
+ * (C) Copyright 2025-2026 Hewlett Packard Enterprise Development LP.
  *
  * SPDX-License-Identifier: BSD-2-Clause-Patent
  */
@@ -166,7 +166,7 @@ main(int argc, char **argv)
 #if CMOCKA_FILTER_SUPPORTED == 1 /** requires cmocka 1.1.5 */
 			cmocka_set_skip_filter(optarg);
 #else
-			D_PRINT("filter not enabled");
+			D_PRINT("filter not enabled\n");
 #endif
 
 			break;
@@ -181,7 +181,7 @@ main(int argc, char **argv)
 				printf("Test filter: %s\n", filter);
 			}
 #else
-			D_PRINT("filter not enabled");
+			D_PRINT("filter not enabled\n");
 #endif
 			break;
 		case FORCE_CSUM: