Merging upstream version 2.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1691 insertions, 808 deletions

diff --git a/plugins/wdc/wdc-nvme.c b/plugins/wdc/wdc-nvme.c
index d5e17b8..486ee36 100644
--- a/plugins/wdc/wdc-nvme.c
+++ b/plugins/wdc/wdc-nvme.c
@@ -30,18 +30,13 @@
 #include <fcntl.h>
 #include <unistd.h>
 
-#include "linux/nvme_ioctl.h"
-
 #include "common.h"
 #include "nvme.h"
-#include "nvme-print.h"
-#include "nvme-ioctl.h"
+#include "libnvme.h"
 #include "plugin.h"
-#include "nvme-status.h"
+#include "linux/types.h"
+#include "nvme-print.h"
 
-#include "argconfig.h"
-#include "suffix.h"
-#include <sys/ioctl.h>
 #define CREATE_CMD
 #include "wdc-nvme.h"
 #include "wdc-utils.h"
@@ -80,19 +75,27 @@
 #define WDC_NVME_SN650_DEV_ID_2             0x2702
 #define WDC_NVME_SN650_DEV_ID_3             0x2720
 #define WDC_NVME_SN650_DEV_ID_4             0x2721
-#define WDC_NVME_SN450_DEV_ID_1             0x2712
-#define WDC_NVME_SN450_DEV_ID_2             0x2713
+#define WDC_NVME_SN655_DEV_ID               0x2722
+#define WDC_NVME_SN560_DEV_ID_1             0x2712
+#define WDC_NVME_SN560_DEV_ID_2             0x2713
+#define WDC_NVME_SN560_DEV_ID_3             0x2714
 #define WDC_NVME_SXSLCL_DEV_ID				0x2001
 #define WDC_NVME_SN520_DEV_ID				0x5003
 #define WDC_NVME_SN520_DEV_ID_1				0x5004
 #define WDC_NVME_SN520_DEV_ID_2				0x5005
+#define WDC_NVME_SN530_DEV_ID				0x5009
 #define WDC_NVME_SN720_DEV_ID				0x5002
 #define WDC_NVME_SN730A_DEV_ID				0x5006
 #define WDC_NVME_SN730B_DEV_ID				0x3714
 #define WDC_NVME_SN730B_DEV_ID_1			0x3734
+#define WDC_NVME_SN740_DEV_ID				0x5015
+#define WDC_NVME_SN740_DEV_ID_1 			0x5016
+#define WDC_NVME_SN740_DEV_ID_2 			0x5017
+#define WDC_NVME_SN740_DEV_ID_3 			0x5025
 #define WDC_NVME_SN340_DEV_ID				0x500d
 #define WDC_NVME_ZN350_DEV_ID				0x5010
 #define WDC_NVME_ZN350_DEV_ID_1 			0x5018
+#define WDC_NVME_SN810_DEV_ID				0x5011
 
 #define WDC_DRIVE_CAP_CAP_DIAG				0x0000000000000001
 #define WDC_DRIVE_CAP_INTERNAL_LOG			0x0000000000000002
@@ -129,7 +132,10 @@
 #define WDC_DRIVE_CAP_DUI_DATA				0x0000000200000000
 #define WDC_SN730B_CAP_VUC_LOG				0x0000000400000000
 #define WDC_DRIVE_CAP_DUI    				0x0000000800000000
-#define WDC_DRIVE_CAP_PURGE				0x0000001000000000
+#define WDC_DRIVE_CAP_PURGE  				0x0000001000000000
+#define WDC_DRIVE_CAP_OCP_C1_LOG_PAGE		0x0000002000000000
+#define WDC_DRIVE_CAP_OCP_C4_LOG_PAGE		0x0000004000000000
+#define WDC_DRIVE_CAP_OCP_C5_LOG_PAGE		0x0000008000000000
 #define WDC_DRIVE_CAP_SMART_LOG_MASK	(WDC_DRIVE_CAP_C0_LOG_PAGE | WDC_DRIVE_CAP_C1_LOG_PAGE | \
                                          WDC_DRIVE_CAP_CA_LOG_PAGE | WDC_DRIVE_CAP_D0_LOG_PAGE)
 #define WDC_DRIVE_CAP_CLEAR_PCIE_MASK       (WDC_DRIVE_CAP_CLEAR_PCIE | \
@@ -164,6 +170,7 @@
 #define WDC_CUSTOMER_ID_0x1004				0x1004
 #define WDC_CUSTOMER_ID_0x1008				0x1008
 #define WDC_CUSTOMER_ID_0x1304				0x1304
+#define WDC_INVALID_CUSTOMER_ID				-1
 
 #define WDC_ALL_PAGE_MASK                   0xFFFF
 #define WDC_C0_PAGE_MASK                    0x0001
@@ -305,7 +312,7 @@
 /* CA Log Page */
 #define WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE		0xCA
 #define WDC_FB_CA_LOG_BUF_LEN					0x80
-#define WDC_BD_CA_LOG_BUF_LEN					0x9C
+#define WDC_BD_CA_LOG_BUF_LEN					0xA0    /* Added 4 padding bytes to resolve build warning messages */
 
 /* C0 EOL Status Log Page */
 #define WDC_NVME_GET_EOL_STATUS_LOG_OPCODE		0xC0
@@ -323,6 +330,7 @@
 #define WDC_NVME_GET_FW_ACT_HISTORY_C2_LOG_ID   0xC2
 #define WDC_FW_ACT_HISTORY_C2_LOG_BUF_LEN       0x1000
 #define WDC_MAX_NUM_ACT_HIST_ENTRIES            20
+#define WDC_C2_GUID_LENGTH                      16
 
 /* C3 Latency Monitor Log Page */
 #define WDC_LATENCY_MON_LOG_BUF_LEN             0x200
@@ -512,14 +520,14 @@ typedef enum
     SCAO_NUSE               = 152,	/* NUSE - Namespace utilization */
     SCAO_PSC                = 160,	/* PLP start count */
     SCAO_EEST               = 176,	/* Endurance estimate */
-    SCAO_PLRC               = 192,     /* PCIe Link Retraining Count */
+    SCAO_PLRC               = 192,	/* PCIe Link Retraining Count */
     SCAO_LPV                = 494,	/* Log page version */
     SCAO_LPG                = 496,	/* Log page GUID */
 } SMART_CLOUD_ATTRIBUTE_OFFSETS;
 
-#define WDC_C2_GUID_LENGTH              16
+#define WDC_C0_GUID_LENGTH              16
 
-static __u8 scao_guid[WDC_C2_GUID_LENGTH]    = { 0xC5, 0xAF, 0x10, 0x28, 0xEA, 0xBF, 0xF2, 0xA4,
+static __u8 scao_guid[WDC_C0_GUID_LENGTH]    = { 0xC5, 0xAF, 0x10, 0x28, 0xEA, 0xBF, 0xF2, 0xA4,
 		0x9C, 0x4F, 0x6F, 0x7C, 0xC9, 0x14, 0xD5, 0xAF };
 
 typedef enum
@@ -632,10 +640,10 @@ static int wdc_purge(int argc, char **argv,
 		struct command *command, struct plugin *plugin);
 static int wdc_purge_monitor(int argc, char **argv,
 		struct command *command, struct plugin *plugin);
-static bool wdc_nvme_check_supported_log_page(int fd, __u8 log_id);
+static bool wdc_nvme_check_supported_log_page(nvme_root_t r, int fd, __u8 log_id);
 static int wdc_clear_pcie_correctable_errors(int argc, char **argv, struct command *command,
 		struct plugin *plugin);
-static int wdc_do_drive_essentials(int fd, char *dir, char *key);
+static int wdc_do_drive_essentials(nvme_root_t r, int fd, char *dir, char *key);
 static int wdc_drive_essentials(int argc, char **argv, struct command *command,
 		struct plugin *plugin);
 static int wdc_drive_status(int argc, char **argv, struct command *command,
@@ -653,7 +661,6 @@ static int wdc_reason_identifier(int argc, char **argv,
 static int wdc_do_get_reason_id(int fd, char *file, int log_id);
 static int wdc_save_reason_id(int fd, __u8 *rsn_ident,  int size);
 static int wdc_clear_reason_id(int fd);
-static int wdc_dump_telemetry_hdr(int fd, int log_id, struct nvme_telemetry_log_page_hdr *log_hdr);
 static int wdc_log_page_directory(int argc, char **argv, struct command *command,
 		struct plugin *plugin);
 static int wdc_do_drive_info(int fd, __u32 *result);
@@ -661,10 +668,11 @@ static int wdc_vs_drive_info(int argc, char **argv, struct command *command,
 		struct plugin *plugin);
 static int wdc_vs_temperature_stats(int argc, char **argv, struct command *command,
 		struct plugin *plugin);
-static __u64 wdc_get_enc_drive_capabilities(int fd);
+static __u64 wdc_get_enc_drive_capabilities(nvme_root_t r, int fd);
 static int wdc_enc_get_nic_log(int fd, __u8 log_id, __u32 xfer_size, __u32 data_len, FILE *out);
 static int wdc_enc_submit_move_data(int fd, char *cmd, int len, int xfer_size, FILE *out, int data_id, int cdw14, int cdw15);
-static bool get_dev_mgment_cbs_data(int fd, __u8 log_id, void **cbs_data);
+static bool get_dev_mgment_cbs_data(nvme_root_t r, int fd, __u8 log_id, void **cbs_data);
+static __u32 wdc_get_fw_cust_id(nvme_root_t r, int fd);
 
 /* Drive log data size */
 struct wdc_log_size {
@@ -802,12 +810,11 @@ struct wdc_c2_cbs_data {
 	__u8	data[];
 };
 
-struct wdc_bd_ca_log_format {
+struct __attribute__((__packed__)) wdc_bd_ca_log_format {
 	__u8	field_id;
 	__u8	reserved1[2];
 	__u8	normalized_value;
-	__u8	reserved2;
-	__u8	raw_value[7];
+	__u8	raw_value[8];
 };
 
 #define READ         0
@@ -904,6 +911,32 @@ struct __attribute__((__packed__)) wdc_ssd_d0_smart_log {
     __u8    rsvd[408];                             /* 0x68 - 408 Reserved bytes                          */
 };
 
+#define WDC_OCP_C1_GUID_LENGTH              16
+#define WDC_ERROR_REC_LOG_BUF_LEN          512
+#define WDC_ERROR_REC_LOG_ID              0xC1
+#define WDC_ERROR_REC_LOG_VERSION         0002
+
+struct __attribute__((__packed__)) wdc_ocp_c1_error_recovery_log {
+    __le16  panic_reset_wait_time;                  /* 000 - Panic Reset Wait Time              */
+    __u8    panic_reset_action;                     /* 002 - Panic Reset Action                 */
+    __u8    dev_recovery_action1;                   /* 003 - Device Recovery Action 1           */
+    __le64  panic_id;                               /* 004 - Panic ID                           */
+    __le32  dev_capabilities;                       /* 012 - Device Capabilities                */
+    __u8    vs_recovery_opc;                        /* 016 - Vendor Specific Recovery Opcode    */
+    __u8    rsvd1[3];                               /* 017 - 3 Reserved Bytes                   */
+    __le32  vs_cmd_cdw12;                           /* 020 - Vendor Specific Command CDW12      */
+    __le32  vs_cmd_cdw13;                           /* 024 - Vendor Specific Command CDW13      */
+    __u8    vs_cmd_to;                              /* 028 - Vendor Specific Command Timeout    */
+    __u8    dev_recovery_action2;                   /* 029 - Device Recovery Action 2           */
+    __u8    dev_recovery_action2_to;                /* 030 - Device Recovery Action 2 Timeout   */
+    __u8    rsvd2[463];                             /* 031 - 463 Reserved Bytes                 */
+    __le16  log_page_version;                       /* 494 - Log Page Version                   */
+    __u8    log_page_guid[WDC_OCP_C1_GUID_LENGTH];  /* 496 - Log Page GUID                      */
+};
+
+static __u8 wdc_ocp_c1_guid[WDC_OCP_C1_GUID_LENGTH]    = { 0x44, 0xD9, 0x31, 0x21, 0xFE, 0x30, 0x34, 0xAE,
+		0xAB, 0x4D, 0xFD, 0x3D, 0xBA, 0x83, 0x19, 0x5A };
+
 /* NAND Stats */
 struct __attribute__((__packed__)) wdc_nand_stats {
 	__u8		nand_write_tlc[16];
@@ -1015,6 +1048,49 @@ struct __attribute__((__packed__)) wdc_fw_act_history_log_format_c2 {
 	__u8 		log_page_guid[WDC_C2_GUID_LENGTH];
 };
 
+#define WDC_OCP_C4_GUID_LENGTH              16
+#define WDC_DEV_CAP_LOG_BUF_LEN           4096
+#define WDC_DEV_CAP_LOG_ID                0xC4
+#define WDC_DEV_CAP_LOG_VERSION           0001
+#define WDC_OCP_C4_NUM_PS_DESCR            127
+
+struct __attribute__((__packed__)) wdc_ocp_C4_dev_cap_log {
+    __le16  num_pcie_ports;                        /* 0000 - Number of PCI Express Ports           */
+    __le16  oob_mgmt_support;                      /* 0002 - OOB Management Interfaces Supported   */
+    __le16  wrt_zeros_support;                     /* 0004 - Write Zeros Commmand Support          */
+    __le16  sanitize_support;                      /* 0006 - Sanitize Command Support              */
+    __le16  dsm_support;                           /* 0008 - Dataset Management Command Support    */
+    __le16  wrt_uncor_support;                     /* 0010 - Write Uncorrectable Command Support   */
+    __le16  fused_support;                         /* 0012 - Fused Operation Support               */
+    __le16  min_dssd_ps;                           /* 0014 - Minimum Valid DSSD Power State        */
+    __u8    rsvd1;                                 /* 0016 - Reserved must be cleared to zero      */
+    __u8    dssd_ps_descr[WDC_OCP_C4_NUM_PS_DESCR];/* 0017 - DSSD Power State Descriptors          */
+    __u8    rsvd2[3934];                           /* 0144 - Reserved must be cleared to zero      */
+    __le16  log_page_version;                      /* 4078 - Log Page Version                      */
+    __u8    log_page_guid[WDC_OCP_C4_GUID_LENGTH]; /* 4080 - Log Page GUID                         */
+};
+
+static __u8 wdc_ocp_c4_guid[WDC_OCP_C4_GUID_LENGTH]    = { 0x97, 0x42, 0x05, 0x0D, 0xD1, 0xE1, 0xC9, 0x98,
+		0x5D, 0x49, 0x58, 0x4B, 0x91, 0x3C, 0x05, 0xB7 };
+
+#define WDC_OCP_C5_GUID_LENGTH              16
+#define WDC_UNSUPPORTED_REQS_LOG_BUF_LEN  4096
+#define WDC_UNSUPPORTED_REQS_LOG_ID       0xC5
+#define WDC_UNSUPPORTED_REQS_LOG_VERSION  0001
+#define WDC_NUM_UNSUPPORTED_REQ_ENTRIES    253
+
+struct __attribute__((__packed__)) wdc_ocp_C5_unsupported_reqs {
+    __le16  unsupported_count;                     /* 0000 - Number of Unsupported Requirement IDs */
+    __u8    rsvd1[14];                             /* 0002 - Reserved must be cleared to zero      */
+    __u8    unsupported_req_list[WDC_NUM_UNSUPPORTED_REQ_ENTRIES][16];  /* 0016 - Unsupported Requirements List */
+    __u8    rsvd2[14];                             /* 4064 - Reserved must be cleared to zero      */
+    __le16  log_page_version;                      /* 4078 - Log Page Version                      */
+    __u8    log_page_guid[WDC_OCP_C5_GUID_LENGTH]; /* 4080 - Log Page GUID                         */
+};
+
+static __u8 wdc_ocp_c5_guid[WDC_OCP_C5_GUID_LENGTH]    = { 0x2F, 0x72, 0x9C, 0x0E, 0x99, 0x23, 0x2C, 0xBB,
+		0x63, 0x48, 0x32, 0xD0, 0xB7, 0x98, 0xBB, 0xC7 };
+
 #define WDC_REASON_INDEX_MAX                    16
 #define WDC_REASON_ID_ENTRY_LEN                128
 #define WDC_REASON_ID_PATH_NAME                "/usr/local/nvmecli"
@@ -1043,80 +1119,74 @@ static long double int128_to_double(__u8 *data)
 	return result;
 }
 
-static int wdc_get_pci_ids(uint32_t *device_id, uint32_t *vendor_id)
+static int wdc_get_pci_ids(nvme_root_t r, uint32_t *device_id,
+			   uint32_t *vendor_id)
 {
-	int fd, ret = -1;
-	char *block, path[512], *id;
-
-	id = calloc(1, 32);
-	if (!id) {
-		fprintf(stderr, "ERROR : WDC : %s : calloc failed\n", __func__);
-		return -1;
-	}
-
-	block = nvme_char_from_block((char *)devicename);
+	char vid[256], did[256], id[32];
+	nvme_ctrl_t c = NULL;
+	nvme_ns_t n = NULL;
+	int fd, ret;
 
-	/* read the vendor ID from sys fs  */
-	sprintf(path, "/sys/class/nvme/%s/device/vendor", block);
+	c = nvme_scan_ctrl(r, devicename);
+	if (c) {
+		snprintf(vid, sizeof(vid), "%s/device/vendor",
+			nvme_ctrl_get_sysfs_dir(c));
+		snprintf(did, sizeof(did), "%s/device/device",
+			nvme_ctrl_get_sysfs_dir(c));
+		nvme_free_ctrl(c);
+	} else {
+		n = nvme_scan_namespace(devicename);
+		if (!n) {
+			fprintf(stderr, "Unable to find %s\n", devicename);
+			return -1;
+		}
 
-	fd = open(path, O_RDONLY);
-	if (fd < 0) {
-		sprintf(path, "/sys/class/misc/%s/device/vendor", block);
-		fd = open(path, O_RDONLY);
+		snprintf(vid, sizeof(vid), "%s/device/device/vendor",
+			nvme_ns_get_sysfs_dir(n));
+		snprintf(did, sizeof(did), "%s/device/device/device",
+			nvme_ns_get_sysfs_dir(n));
+		nvme_free_ns(n);
 	}
+
+	fd = open(vid, O_RDONLY);
 	if (fd < 0) {
 		fprintf(stderr, "ERROR : WDC : %s : Open vendor file failed\n", __func__);
-		ret = -1;
-		goto free_id;
+		return -1;
 	}
 
 	ret = read(fd, id, 32);
+	close(fd);
+
 	if (ret < 0) {
 		fprintf(stderr, "%s: Read of pci vendor id failed\n", __func__);
-		ret = -1;
-		goto close_fd;
-	} else {
-		if (id[strlen(id) - 1] == '\n')
-			id[strlen(id) - 1] = '\0';
-
-		/* convert the device id string to an int  */
-		*vendor_id = (int)strtol(&id[2], NULL, 16);
-		ret = 0;
+		return -1;
 	}
 
-	/* read the device ID from sys fs */
-	sprintf(path, "/sys/class/nvme/%s/device/device", block);
+	if (id[strlen(id) - 1] == '\n')
+		id[strlen(id) - 1] = '\0';
 
-	fd = open(path, O_RDONLY);
-	if (fd < 0) {
-		sprintf(path, "/sys/class/misc/%s/device/device", block);
-		fd = open(path, O_RDONLY);
-	}
+	*vendor_id = strtol(id, NULL, 0);
+	ret = 0;
+
+	fd = open(did, O_RDONLY);
 	if (fd < 0) {
 		fprintf(stderr, "ERROR : WDC : %s : Open device file failed\n", __func__);
-		ret = -1;
-		goto close_fd;
+		return -1;
 	}
 
 	ret = read(fd, id, 32);
+	close(fd);
+
 	if (ret < 0) {
 		fprintf(stderr, "%s: Read of pci device id failed\n", __func__);
-		ret = -1;
-	} else {
-		if (id[strlen(id) - 1] == '\n')
-			id[strlen(id) - 1] = '\0';
-
-		/* convert the device id string to an int  */
-		*device_id = strtol(&id[2], NULL, 16);
-		ret = 0;
+		return -1;
 	}
 
-close_fd:
-	close(fd);
-free_id:
-	free(block);
-	free(id);
-	return ret;
+	if (id[strlen(id) - 1] == '\n')
+		id[strlen(id) - 1] = '\0';
+
+	*device_id = strtol(id, NULL, 0);
+	return 0;
 }
 
 static int wdc_get_vendor_id(int fd, uint32_t *vendor_id)
@@ -1164,13 +1234,13 @@ static int wdc_get_model_number(int fd, char *model)
 	return ret;
 }
 
-static bool wdc_check_device(int fd)
+static bool wdc_check_device(nvme_root_t r, int fd)
 {
 	int ret;
 	bool supported;
 	uint32_t read_device_id = -1, read_vendor_id = -1;
 
-	ret = wdc_get_pci_ids(&read_device_id, &read_vendor_id);
+	ret = wdc_get_pci_ids(r, &read_device_id, &read_vendor_id);
 	if (ret < 0) {
 		/* Use the identify nvme command to get vendor id due to NVMeOF device. */
 		if (wdc_get_vendor_id(fd, &read_vendor_id) < 0)
@@ -1210,14 +1280,13 @@ static bool wdc_enc_check_model(int fd)
 	return supported;
 }
 
-static __u64 wdc_get_drive_capabilities(int fd) {
+static __u64 wdc_get_drive_capabilities(nvme_root_t r, int fd) {
 	int ret;
 	uint32_t read_device_id = -1, read_vendor_id = -1;
 	__u64 capabilities = 0;
-	__u8 *data;
-	__u32 *cust_id;
+	__u32 cust_id;
 
-	ret = wdc_get_pci_ids(&read_device_id, &read_vendor_id);
+	ret = wdc_get_pci_ids(r, &read_device_id, &read_vendor_id);
 	if (ret < 0)
 	{
 		if (wdc_get_vendor_id(fd, &read_vendor_id) < 0)
@@ -1227,7 +1296,7 @@ static __u64 wdc_get_drive_capabilities(int fd) {
 	/* below check condition is added due in NVMeOF device we dont have device_id so we need to use only vendor_id*/
 	if (read_device_id == -1 && read_vendor_id != -1)
 	{
-		capabilities = wdc_get_enc_drive_capabilities(fd);
+		capabilities = wdc_get_enc_drive_capabilities(r, fd);
 		return capabilities;
 	}
 
@@ -1245,11 +1314,11 @@ static __u64 wdc_get_drive_capabilities(int fd) {
 					WDC_DRIVE_CAP_PURGE);
 
 			/* verify the 0xCA log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE) == true)
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE) == true)
 				capabilities |= WDC_DRIVE_CAP_CA_LOG_PAGE;
 
 			/* verify the 0xC1 log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_ADD_LOG_OPCODE) == true)
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_ADD_LOG_OPCODE) == true)
 				capabilities |= WDC_DRIVE_CAP_C1_LOG_PAGE;
 			break;
 		default:
@@ -1265,11 +1334,11 @@ static __u64 wdc_get_drive_capabilities(int fd) {
 					WDC_DRIVE_CAP_DRIVE_STATUS | WDC_DRIVE_CAP_CLEAR_ASSERT |
 					WDC_DRIVE_CAP_RESIZE | WDC_DRIVE_CAP_CLEAR_PCIE);
 			/* verify the 0xCA log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE) == true)
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE) == true)
 				capabilities |= WDC_DRIVE_CAP_CA_LOG_PAGE;
 
 			/* verify the 0xD0 log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_VU_SMART_LOG_OPCODE) == true)
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_VU_SMART_LOG_OPCODE) == true)
 				capabilities |= WDC_DRIVE_CAP_D0_LOG_PAGE;
 			break;
 		case WDC_NVME_SN640_DEV_ID:
@@ -1280,7 +1349,7 @@ static __u64 wdc_get_drive_capabilities(int fd) {
 		/* FALLTHRU */
         case WDC_NVME_SN640_DEV_ID_3:
 			/* verify the 0xC0 log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_EOL_STATUS_LOG_OPCODE) == true) {
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_EOL_STATUS_LOG_OPCODE) == true) {
 				capabilities |= WDC_DRIVE_CAP_C0_LOG_PAGE;
 			}
 
@@ -1290,27 +1359,38 @@ static __u64 wdc_get_drive_capabilities(int fd) {
 					WDC_DRVIE_CAP_DISABLE_CTLR_TELE_LOG | WDC_DRIVE_CAP_REASON_ID |
 					WDC_DRIVE_CAP_LOG_PAGE_DIR);
 
-			/* verify the 0xC3 log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_LATENCY_MON_OPCODE) == true)
+			/* verify the 0xC1 (OCP Error Recovery) log page is supported */
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_ERROR_REC_LOG_ID) == true)
+				capabilities |= WDC_DRIVE_CAP_OCP_C1_LOG_PAGE;
+
+			/* verify the 0xC3 (OCP Latency Monitor) log page is supported */
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_LATENCY_MON_OPCODE) == true)
 				capabilities |= WDC_DRIVE_CAP_C3_LOG_PAGE;
 
+			/* verify the 0xC4 (OCP Device Capabilities) log page is supported */
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_DEV_CAP_LOG_ID) == true)
+				capabilities |= WDC_DRIVE_CAP_OCP_C4_LOG_PAGE;
+
+			/* verify the 0xC5 (OCP Unsupported Requirments) log page is supported */
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_UNSUPPORTED_REQS_LOG_ID) == true)
+				capabilities |= WDC_DRIVE_CAP_OCP_C5_LOG_PAGE;
+
 			/* verify the 0xCA log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE) == true)
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE) == true)
 				capabilities |= WDC_DRIVE_CAP_CA_LOG_PAGE;
 
 			/* verify the 0xD0 log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_VU_SMART_LOG_OPCODE) == true)
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_VU_SMART_LOG_OPCODE) == true)
 				capabilities |= WDC_DRIVE_CAP_D0_LOG_PAGE;
 
-			if (!get_dev_mgment_cbs_data(fd, WDC_C2_CUSTOMER_ID_ID, (void*)&data)) {
-				fprintf(stderr, "%s: ERROR : WDC : 0xC2 Log Page entry ID 0x%x not found\n", __func__, WDC_C2_CUSTOMER_ID_ID);
+			cust_id = wdc_get_fw_cust_id(r, fd);
+			if (cust_id == WDC_INVALID_CUSTOMER_ID) {
+				fprintf(stderr, "%s: ERROR : WDC : invalid customer id\n", __func__);
 				return -1;
 			}
 
-			cust_id = (__u32*)data;
-
-			if ((*cust_id == WDC_CUSTOMER_ID_0x1004) || (*cust_id == WDC_CUSTOMER_ID_0x1008) ||
-					(*cust_id == WDC_CUSTOMER_ID_0x1005) || (*cust_id == WDC_CUSTOMER_ID_0x1304))
+			if ((cust_id == WDC_CUSTOMER_ID_0x1004) || (cust_id == WDC_CUSTOMER_ID_0x1008) ||
+					(cust_id == WDC_CUSTOMER_ID_0x1005) || (cust_id == WDC_CUSTOMER_ID_0x1304))
 				capabilities |= (WDC_DRIVE_CAP_VU_FID_CLEAR_FW_ACT_HISTORY | WDC_DRIVE_CAP_VU_FID_CLEAR_PCIE |
 						WDC_DRIVE_CAP_INFO | WDC_DRIVE_CAP_CLOUD_SSD_VERSION);
 			else
@@ -1321,7 +1401,7 @@ static __u64 wdc_get_drive_capabilities(int fd) {
 		/* FALLTHRU */
 		case WDC_NVME_SN840_DEV_ID_1:
 			/* verify the 0xC0 log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_EOL_STATUS_LOG_OPCODE) == true) {
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_EOL_STATUS_LOG_OPCODE) == true) {
 				capabilities |= WDC_DRIVE_CAP_C0_LOG_PAGE;
 			}
 		/* FALLTHRU */
@@ -1337,11 +1417,11 @@ static __u64 wdc_get_drive_capabilities(int fd) {
 					WDC_DRIVE_CAP_LOG_PAGE_DIR );
 
 			/* verify the 0xCA log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE) == true)
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE) == true)
 				capabilities |= WDC_DRIVE_CAP_CA_LOG_PAGE;
 
 			/* verify the 0xD0 log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_VU_SMART_LOG_OPCODE) == true)
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_VU_SMART_LOG_OPCODE) == true)
 				capabilities |= WDC_DRIVE_CAP_D0_LOG_PAGE;
 			break;
 		case WDC_NVME_SN650_DEV_ID:
@@ -1349,17 +1429,19 @@ static __u64 wdc_get_drive_capabilities(int fd) {
 		case WDC_NVME_SN650_DEV_ID_2:
 		case WDC_NVME_SN650_DEV_ID_3:
 		case WDC_NVME_SN650_DEV_ID_4:
-		case WDC_NVME_SN450_DEV_ID_1:
-		case WDC_NVME_SN450_DEV_ID_2:
+		case WDC_NVME_SN655_DEV_ID:
+		case WDC_NVME_SN560_DEV_ID_1:
+		case WDC_NVME_SN560_DEV_ID_2:
+		case WDC_NVME_SN560_DEV_ID_3:
 			/* verify the 0xC0 log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_EOL_STATUS_LOG_OPCODE) == true) {
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_EOL_STATUS_LOG_OPCODE) == true) {
 				capabilities |= WDC_DRIVE_CAP_C0_LOG_PAGE;
 			}
 
 			capabilities |= (WDC_DRIVE_CAP_CAP_DIAG | WDC_DRIVE_CAP_INTERNAL_LOG |
 					WDC_DRIVE_CAP_DRIVE_STATUS | WDC_DRIVE_CAP_CLEAR_ASSERT |
 					WDC_DRIVE_CAP_RESIZE | WDC_DRIVE_CAP_VU_FID_CLEAR_PCIE |
-					WDC_DRIVE_CAP_FW_ACTIVATE_HISTORY | WDC_DRIVE_CAP_VU_FID_CLEAR_FW_ACT_HISTORY |
+					WDC_DRIVE_CAP_FW_ACTIVATE_HISTORY | WDC_DRIVE_CAP_CLEAR_FW_ACT_HISTORY |
 					WDC_DRVIE_CAP_DISABLE_CTLR_TELE_LOG | WDC_DRIVE_CAP_REASON_ID |
 					WDC_DRIVE_CAP_LOG_PAGE_DIR | WDC_DRIVE_CAP_INFO |
 					WDC_DRIVE_CAP_CLOUD_SSD_VERSION);
@@ -1384,6 +1466,8 @@ static __u64 wdc_get_drive_capabilities(int fd) {
 		case WDC_NVME_SN520_DEV_ID_1:
 		/* FALLTHRU */
 		case WDC_NVME_SN520_DEV_ID_2:
+		case WDC_NVME_SN530_DEV_ID:
+		case WDC_NVME_SN810_DEV_ID:
 			capabilities = WDC_DRIVE_CAP_DUI_DATA;
 			break;
 		case WDC_NVME_SN720_DEV_ID:
@@ -1393,6 +1477,10 @@ static __u64 wdc_get_drive_capabilities(int fd) {
 			capabilities =  WDC_DRIVE_CAP_DUI | WDC_DRIVE_CAP_NAND_STATS | WDC_DRIVE_CAP_INFO_2
 			| WDC_DRIVE_CAP_TEMP_STATS | WDC_DRIVE_CAP_VUC_CLEAR_PCIE | WDC_DRIVE_CAP_PCIE_STATS;
 			break;
+                case WDC_NVME_SN740_DEV_ID:
+                case WDC_NVME_SN740_DEV_ID_1:
+                case WDC_NVME_SN740_DEV_ID_2:
+                case WDC_NVME_SN740_DEV_ID_3:
 		case WDC_NVME_SN340_DEV_ID:
 			capabilities = WDC_DRIVE_CAP_DUI;
 			break;
@@ -1414,12 +1502,11 @@ static __u64 wdc_get_drive_capabilities(int fd) {
 	return capabilities;
 }
 
-static __u64 wdc_get_enc_drive_capabilities(int fd) {
+static __u64 wdc_get_enc_drive_capabilities(nvme_root_t r, int fd) {
 	int ret;
 	uint32_t read_vendor_id;
 	__u64 capabilities = 0;
-	__u8 *data;
-	__u32 *cust_id;
+	__u32 cust_id;
 
 	ret = wdc_get_vendor_id(fd, &read_vendor_id);
 	if (ret < 0)
@@ -1431,11 +1518,11 @@ static __u64 wdc_get_enc_drive_capabilities(int fd) {
 				WDC_DRIVE_CAP_DRIVE_LOG | WDC_DRIVE_CAP_CRASH_DUMP | WDC_DRIVE_CAP_PFAIL_DUMP);
 
 			/* verify the 0xCA log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE) == true)
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE) == true)
 				capabilities |= WDC_DRIVE_CAP_CA_LOG_PAGE;
 
 			/* verify the 0xC1 log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_ADD_LOG_OPCODE) == true)
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_ADD_LOG_OPCODE) == true)
 				capabilities |= WDC_DRIVE_CAP_C1_LOG_PAGE;
 			break;
 		case WDC_NVME_VID_2:
@@ -1444,30 +1531,29 @@ static __u64 wdc_get_enc_drive_capabilities(int fd) {
 				WDC_DRIVE_CAP_RESIZE);
 
 			/* verify the 0xC3 log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_LATENCY_MON_OPCODE) == true)
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_LATENCY_MON_OPCODE) == true)
 				capabilities |= WDC_DRIVE_CAP_C3_LOG_PAGE;
 
 			/* verify the 0xCB log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_FW_ACT_HISTORY_LOG_ID) == true)
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_FW_ACT_HISTORY_LOG_ID) == true)
 				capabilities |= WDC_DRIVE_CAP_FW_ACTIVATE_HISTORY;
 
 			/* verify the 0xCA log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE) == true)
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE) == true)
 				capabilities |= WDC_DRIVE_CAP_CA_LOG_PAGE;
 
 			/* verify the 0xD0 log page is supported */
-			if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_VU_SMART_LOG_OPCODE) == true)
+			if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_VU_SMART_LOG_OPCODE) == true)
 				capabilities |= WDC_DRIVE_CAP_D0_LOG_PAGE;
 
-			if (!get_dev_mgment_cbs_data(fd, WDC_C2_CUSTOMER_ID_ID, (void*)&data)) {
-				fprintf(stderr, "%s: ERROR : WDC : 0xC2 Log Page entry ID 0x%x not found\n", __func__, WDC_C2_CUSTOMER_ID_ID);
+			cust_id = wdc_get_fw_cust_id(r, fd);
+			if (cust_id == WDC_INVALID_CUSTOMER_ID) {
+				fprintf(stderr, "%s: ERROR : WDC : invalid customer id\n", __func__);
 				return -1;
 			}
 
-			cust_id = (__u32*)data;
-
-			if ((*cust_id == WDC_CUSTOMER_ID_0x1004) || (*cust_id == WDC_CUSTOMER_ID_0x1008) ||
-					(*cust_id == WDC_CUSTOMER_ID_0x1005) || (*cust_id == WDC_CUSTOMER_ID_0x1304))
+			if ((cust_id == WDC_CUSTOMER_ID_0x1004) || (cust_id == WDC_CUSTOMER_ID_0x1008) ||
+					(cust_id == WDC_CUSTOMER_ID_0x1005) || (cust_id == WDC_CUSTOMER_ID_0x1304))
 				capabilities |= (WDC_DRIVE_CAP_VU_FID_CLEAR_FW_ACT_HISTORY | WDC_DRIVE_CAP_VU_FID_CLEAR_PCIE);
 			else
 				capabilities |= (WDC_DRIVE_CAP_CLEAR_FW_ACT_HISTORY | WDC_DRIVE_CAP_CLEAR_PCIE);
@@ -1655,10 +1741,10 @@ bool wdc_get_dev_mng_log_entry(__u32 log_length,
     return valid_log;
 }
 
-static bool get_dev_mgment_cbs_data(int fd, __u8 log_id, void **cbs_data)
+static bool get_dev_mgment_cbs_data(nvme_root_t r, int fd, __u8 log_id, void **cbs_data)
 {
 	int ret = -1;
-	__u8* data;
+	void* data;
 	struct wdc_c2_log_page_header *hdr_ptr;
 	struct wdc_c2_log_subpage_header *sph;
 	__u32 length = 0;
@@ -1668,10 +1754,10 @@ static bool get_dev_mgment_cbs_data(int fd, __u8 log_id, void **cbs_data)
 	*cbs_data = NULL;
 	__u32 device_id, read_vendor_id;
 
-	ret = wdc_get_pci_ids(&device_id, &read_vendor_id);
+	ret = wdc_get_pci_ids(r, &device_id, &read_vendor_id);
 	if(device_id == WDC_NVME_ZN350_DEV_ID || device_id == WDC_NVME_ZN350_DEV_ID_1) {
 		lid = WDC_NVME_GET_DEV_MGMNT_LOG_PAGE_OPCODE_C8;
-	        uuid_ix = 0;
+		uuid_ix = 0;
 	} else
 		lid = WDC_NVME_GET_DEV_MGMNT_LOG_PAGE_OPCODE;
 
@@ -1682,18 +1768,36 @@ static bool get_dev_mgment_cbs_data(int fd, __u8 log_id, void **cbs_data)
 	memset(data, 0, sizeof (__u8) * WDC_C2_LOG_BUF_LEN);
 
 	/* get the log page length */
-	ret = nvme_get_log14(fd, 0xFFFFFFFF, lid, NVME_NO_LOG_LSP, 0, 0, false, uuid_ix, 0, false, WDC_C2_LOG_BUF_LEN, data);
+	struct nvme_get_log_args args_len = {
+		.args_size	= sizeof(args_len),
+		.fd		= fd,
+		.lid		= lid,
+		.nsid		= 0xFFFFFFFF,
+		.lpo		= 0,
+		.lsp		= NVME_LOG_LSP_NONE,
+		.lsi		= 0,
+		.rae		= false,
+		.uuidx		= uuid_ix,
+		.csi		= NVME_CSI_NVM,
+		.ot		= false,
+		.len		= WDC_C2_LOG_BUF_LEN,
+		.log		= data,
+		.timeout	= NVME_DEFAULT_IOCTL_TIMEOUT,
+		.result		= NULL,
+	};
+	ret = nvme_get_log(&args_len);
 	if (ret) {
 		fprintf(stderr, "ERROR : WDC : Unable to get 0x%x Log Page length, ret = 0x%x\n", lid, ret);
 		goto end;
 	}
 
 	hdr_ptr = (struct wdc_c2_log_page_header *)data;
+	length = le32_to_cpu(hdr_ptr->length);
 
-	if (le32_to_cpu(hdr_ptr->length) > WDC_C2_LOG_BUF_LEN) {
+	if (length > WDC_C2_LOG_BUF_LEN) {
 		/* Log Page buffer too small, free and reallocate the necessary size */
 		free(data);
-		data = calloc(le32_to_cpu(hdr_ptr->length), sizeof(__u8));
+		data = calloc(length, sizeof(__u8));
 		if (data == NULL) {
 			fprintf(stderr, "ERROR : WDC : malloc : %s\n", strerror(errno));
 			return false;
@@ -1701,7 +1805,25 @@ static bool get_dev_mgment_cbs_data(int fd, __u8 log_id, void **cbs_data)
 	}
 
 	/* get the log page data */
-	ret = nvme_get_log14(fd, 0xFFFFFFFF, lid, NVME_NO_LOG_LSP, 0, 0, false, uuid_ix, 0, false, le32_to_cpu(hdr_ptr->length), data);
+	struct nvme_get_log_args args_data = {
+		.args_size	= sizeof(args_data),
+		.fd		= fd,
+		.lid		= lid,
+		.nsid		= 0xFFFFFFFF,
+		.lpo		= 0,
+		.lsp		= NVME_LOG_LSP_NONE,
+		.lsi		= 0,
+		.rae		= false,
+		.uuidx		= uuid_ix,
+		.csi		= NVME_CSI_NVM,
+		.ot		= false,
+		.len		= length,
+		.log		= data,
+		.timeout	= NVME_DEFAULT_IOCTL_TIMEOUT,
+		.result		= NULL,
+	};
+	ret = nvme_get_log(&args_data);
+
 	if (ret) {
 		fprintf(stderr, "ERROR : WDC : Unable to read 0x%x Log Page data, ret = 0x%x\n", lid, ret);
 		goto end;
@@ -1712,20 +1834,48 @@ static bool get_dev_mgment_cbs_data(int fd, __u8 log_id, void **cbs_data)
 	length = sizeof(struct wdc_c2_log_page_header);
 	hdr_ptr = (struct wdc_c2_log_page_header *)data;
 	sph = (struct wdc_c2_log_subpage_header *)(data + length);
-	found = wdc_get_dev_mng_log_entry(hdr_ptr->length, log_id, hdr_ptr, &sph);
-
+	found = wdc_get_dev_mng_log_entry(le32_to_cpu(hdr_ptr->length), log_id, hdr_ptr, &sph);
 	if (found) {
-		*cbs_data = (void *)&sph->data;
+		*cbs_data = calloc(le32_to_cpu(sph->length), sizeof(__u8));
+		if (*cbs_data == NULL) {
+			fprintf(stderr, "ERROR : WDC : calloc : %s\n", strerror(errno));
+			goto end;
+		}
+		memcpy((void *)*cbs_data, (void *)&sph->data, le32_to_cpu(sph->length));
 	} else {
 		/* not found with uuid = 1 try with uuid = 0 */
 		uuid_ix = 0;
 		/* get the log page data */
-		ret = nvme_get_log14(fd, 0xFFFFFFFF, lid, NVME_NO_LOG_LSP, 0, 0, false, uuid_ix, 0, false, le32_to_cpu(hdr_ptr->length), data);
+		struct nvme_get_log_args args = {
+			.args_size	= sizeof(args),
+			.fd		= fd,
+			.lid		= lid,
+			.nsid		= 0xFFFFFFFF,
+			.lpo		= 0,
+			.lsp		= NVME_LOG_LSP_NONE,
+			.lsi		= 0,
+			.rae		= false,
+			.uuidx		= uuid_ix,
+			.csi		= NVME_CSI_NVM,
+			.ot		= false,
+			.len		= le32_to_cpu(hdr_ptr->length),
+			.log		= data,
+			.timeout	= NVME_DEFAULT_IOCTL_TIMEOUT,
+			.result		= NULL,
+		};
+		ret = nvme_get_log(&args);
+
 		hdr_ptr = (struct wdc_c2_log_page_header *)data;
 		sph = (struct wdc_c2_log_subpage_header *)(data + length);
-		found = wdc_get_dev_mng_log_entry(hdr_ptr->length, log_id, hdr_ptr, &sph);
+		found = wdc_get_dev_mng_log_entry(le32_to_cpu(hdr_ptr->length), log_id, hdr_ptr, &sph);
 		if (found) {
-			*cbs_data = (void *)&sph->data;
+			*cbs_data = calloc(le32_to_cpu(sph->length), sizeof(__u8));
+			if (*cbs_data == NULL) {
+				fprintf(stderr, "ERROR : WDC : calloc : %s\n", strerror(errno));
+				goto end;
+			}
+			memcpy((void *)*cbs_data, (void *)&sph->data, le32_to_cpu(sph->length));
+
 		} else {
 			/* WD version not found  */
 			fprintf(stderr, "ERROR : WDC : Unable to find correct version of page 0x%x, entry id = %d\n", lid, log_id);
@@ -1736,13 +1886,13 @@ end:
 	return found;
 }
 
-static bool wdc_nvme_check_supported_log_page(int fd, __u8 log_id)
+static bool wdc_nvme_check_supported_log_page(nvme_root_t r, int fd, __u8 log_id)
 {
 	int i;
 	bool found = false;
 	struct wdc_c2_cbs_data *cbs_data = NULL;
 
-	if (get_dev_mgment_cbs_data(fd, WDC_C2_LOG_PAGES_SUPPORTED_ID, (void *)&cbs_data)) {
+	if (get_dev_mgment_cbs_data(r, fd, WDC_C2_LOG_PAGES_SUPPORTED_ID, (void *)&cbs_data)) {
 		if (cbs_data != NULL) {
 			for (i = 0; i < le32_to_cpu(cbs_data->length); i++) {
 				if (log_id == cbs_data->data[i]) {
@@ -1759,6 +1909,7 @@ static bool wdc_nvme_check_supported_log_page(int fd, __u8 log_id)
 				d((__u8 *)cbs_data->data, le32_to_cpu(cbs_data->length), 16, 1);
 			}
 #endif
+			free(cbs_data);
 		} else
 			fprintf(stderr, "ERROR : WDC : cbs_data ptr = NULL\n");
 	} else
@@ -1767,14 +1918,16 @@ static bool wdc_nvme_check_supported_log_page(int fd, __u8 log_id)
 	return found;
 }
 
-static bool wdc_nvme_get_dev_status_log_data(int fd, __le32 *ret_data,
+static bool wdc_nvme_get_dev_status_log_data(nvme_root_t r, int fd, __le32 *ret_data,
 		__u8 log_id)
 {
 	__u32 *cbs_data = NULL;
 
-	if (get_dev_mgment_cbs_data(fd, log_id, (void *)&cbs_data)) {
+	if (get_dev_mgment_cbs_data(r, fd, log_id, (void *)&cbs_data)) {
 		if (cbs_data != NULL) {
 			memcpy((void *)ret_data, (void *)cbs_data, 4);
+			free(cbs_data);
+
 			return true;
 		}
 	}
@@ -1786,16 +1939,16 @@ static bool wdc_nvme_get_dev_status_log_data(int fd, __le32 *ret_data,
 static int wdc_do_clear_dump(int fd, __u8 opcode, __u32 cdw12)
 {
 	int ret;
-	struct nvme_admin_cmd admin_cmd;
+	struct nvme_passthru_cmd admin_cmd;
 
-	memset(&admin_cmd, 0, sizeof (struct nvme_admin_cmd));
+	memset(&admin_cmd, 0, sizeof (struct nvme_passthru_cmd));
 	admin_cmd.opcode = opcode;
 	admin_cmd.cdw12 = cdw12;
-	ret = nvme_submit_admin_passthru(fd, &admin_cmd);
+	ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
 	if (ret != 0) {
 		fprintf(stdout, "ERROR : WDC : Crash dump erase failed\n");
 	}
-	fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+	nvme_show_status(ret);
 	return ret;
 }
 
@@ -1804,22 +1957,22 @@ static __u32 wdc_dump_length(int fd, __u32 opcode, __u32 cdw10, __u32 cdw12, __u
 	int ret;
 	__u8 buf[WDC_NVME_LOG_SIZE_DATA_LEN] = {0};
 	struct wdc_log_size *l;
-	struct nvme_admin_cmd admin_cmd;
+	struct nvme_passthru_cmd admin_cmd;
 
 	l = (struct wdc_log_size *) buf;
-	memset(&admin_cmd, 0, sizeof (struct nvme_admin_cmd));
+	memset(&admin_cmd, 0, sizeof (struct nvme_passthru_cmd));
 	admin_cmd.opcode = opcode;
 	admin_cmd.addr = (__u64)(uintptr_t)buf;
 	admin_cmd.data_len = WDC_NVME_LOG_SIZE_DATA_LEN;
 	admin_cmd.cdw10 = cdw10;
 	admin_cmd.cdw12 = cdw12;
 
-	ret = nvme_submit_admin_passthru(fd, &admin_cmd);
+	ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
 	if (ret != 0) {
 		l->log_size = 0;
 		ret = -1;
 		fprintf(stderr, "ERROR : WDC : reading dump length failed\n");
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 		return ret;
 	}
 
@@ -1833,19 +1986,19 @@ static __u32 wdc_dump_length(int fd, __u32 opcode, __u32 cdw10, __u32 cdw12, __u
 static __u32 wdc_dump_length_e6(int fd, __u32 opcode, __u32 cdw10, __u32 cdw12, struct wdc_e6_log_hdr *dump_hdr)
 {
 	int ret;
-	struct nvme_admin_cmd admin_cmd;
+	struct nvme_passthru_cmd admin_cmd;
 
-	memset(&admin_cmd, 0, sizeof (struct nvme_admin_cmd));
+	memset(&admin_cmd, 0, sizeof (struct nvme_passthru_cmd));
 	admin_cmd.opcode = opcode;
 	admin_cmd.addr = (__u64)(uintptr_t)dump_hdr;
 	admin_cmd.data_len = WDC_NVME_LOG_SIZE_HDR_LEN;
 	admin_cmd.cdw10 = cdw10;
 	admin_cmd.cdw12 = cdw12;
 
-	ret = nvme_submit_admin_passthru(fd, &admin_cmd);
+	ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
 	if (ret != 0) {
 		fprintf(stderr, "ERROR : WDC : reading dump length failed\n");
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 	}
 
 	return ret;
@@ -1854,9 +2007,9 @@ static __u32 wdc_dump_length_e6(int fd, __u32 opcode, __u32 cdw10, __u32 cdw12,
 static __u32 wdc_dump_dui_data(int fd, __u32 dataLen, __u32 offset, __u8 *dump_data, bool last_xfer)
 {
 	int ret;
-	struct nvme_admin_cmd admin_cmd;
+	struct nvme_passthru_cmd admin_cmd;
 
-	memset(&admin_cmd, 0, sizeof (struct nvme_admin_cmd));
+	memset(&admin_cmd, 0, sizeof (struct nvme_passthru_cmd));
 	admin_cmd.opcode = WDC_NVME_CAP_DUI_OPCODE;
 	admin_cmd.nsid = 0xFFFFFFFF;
 	admin_cmd.addr = (__u64)(uintptr_t)dump_data;
@@ -1869,10 +2022,10 @@ static __u32 wdc_dump_dui_data(int fd, __u32 dataLen, __u32 offset, __u8 *dump_d
 		admin_cmd.cdw14 = WDC_NVME_CAP_DUI_DISABLE_IO;
 
 
-	ret = nvme_submit_admin_passthru(fd, &admin_cmd);
+	ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
 	if (ret != 0) {
 		fprintf(stderr, "ERROR : WDC : reading DUI data failed\n");
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 	}
 
 	return ret;
@@ -1881,10 +2034,10 @@ static __u32 wdc_dump_dui_data(int fd, __u32 dataLen, __u32 offset, __u8 *dump_d
 static __u32 wdc_dump_dui_data_v2(int fd, __u32 dataLen, __u64 offset, __u8 *dump_data, bool last_xfer)
 {
 	int ret;
-	struct nvme_admin_cmd admin_cmd;
+	struct nvme_passthru_cmd admin_cmd;
 	__u64 offset_lo, offset_hi;
 
-	memset(&admin_cmd, 0, sizeof (struct nvme_admin_cmd));
+	memset(&admin_cmd, 0, sizeof (struct nvme_passthru_cmd));
 	admin_cmd.opcode = WDC_NVME_CAP_DUI_OPCODE;
 	admin_cmd.nsid = 0xFFFFFFFF;
 	admin_cmd.addr = (__u64)(uintptr_t)dump_data;
@@ -1900,10 +2053,10 @@ static __u32 wdc_dump_dui_data_v2(int fd, __u32 dataLen, __u64 offset, __u8 *dum
 	else
 		admin_cmd.cdw14 = WDC_NVME_CAP_DUI_DISABLE_IO;
 
-	ret = nvme_submit_admin_passthru(fd, &admin_cmd);
+	ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
 	if (ret != 0) {
 		fprintf(stderr, "ERROR : WDC : reading DUI data V2 failed\n");
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 	}
 
 	return ret;
@@ -1916,7 +2069,7 @@ static int wdc_do_dump(int fd, __u32 opcode,__u32 data_len,
 	__u8 *dump_data;
 	__u32 curr_data_offset, curr_data_len;
 	int i;
-	struct nvme_admin_cmd admin_cmd;
+	struct nvme_passthru_cmd admin_cmd;
 	__u32 dump_length = data_len;
 
 	dump_data = (__u8 *) malloc(sizeof (__u8) * dump_length);
@@ -1925,7 +2078,7 @@ static int wdc_do_dump(int fd, __u32 opcode,__u32 data_len,
 		return -1;
 	}
 	memset(dump_data, 0, sizeof (__u8) * dump_length);
-	memset(&admin_cmd, 0, sizeof (struct nvme_admin_cmd));
+	memset(&admin_cmd, 0, sizeof (struct nvme_passthru_cmd));
 	curr_data_offset = 0;
 	curr_data_len = xfer_size;
 	i = 0;
@@ -1938,10 +2091,9 @@ static int wdc_do_dump(int fd, __u32 opcode,__u32 data_len,
 	admin_cmd.cdw13 = curr_data_offset;
 
 	while (curr_data_offset < data_len) {
-		ret = nvme_submit_admin_passthru(fd, &admin_cmd);
+		ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
 		if (ret != 0) {
-			fprintf(stderr, "%s: ERROR : WDC : NVMe Status:%s(%x)\n",
-				__func__, nvme_status_to_string(ret), ret);
+			nvme_show_status(ret);
 			fprintf(stderr, "%s: ERROR : WDC : Get chunk %d, size = 0x%x, offset = 0x%x, addr = 0x%lx\n",
 				__func__, i, admin_cmd.data_len, curr_data_offset, (long unsigned int)admin_cmd.addr);
 			break;
@@ -1961,7 +2113,7 @@ static int wdc_do_dump(int fd, __u32 opcode,__u32 data_len,
 	}
 
 	if (ret == 0) {
-		fprintf(stderr, "%s:  NVMe Status:%s(%x)\n", __func__, nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 		ret = wdc_create_log_file(file, dump_data, dump_length);
 	}
 	free(dump_data);
@@ -1975,7 +2127,7 @@ static int wdc_do_dump_e6(int fd, __u32 opcode,__u32 data_len,
 	__u8 *dump_data;
 	__u32 curr_data_offset, log_size;
 	int i;
-	struct nvme_admin_cmd admin_cmd;
+	struct nvme_passthru_cmd admin_cmd;
 
 	dump_data = (__u8 *) malloc(sizeof (__u8) * data_len);
 
@@ -1984,7 +2136,7 @@ static int wdc_do_dump_e6(int fd, __u32 opcode,__u32 data_len,
 		return -1;
 	}
 	memset(dump_data, 0, sizeof (__u8) * data_len);
-	memset(&admin_cmd, 0, sizeof (struct nvme_admin_cmd));
+	memset(&admin_cmd, 0, sizeof (struct nvme_passthru_cmd));
 	curr_data_offset = WDC_NVME_LOG_SIZE_HDR_LEN;
 	i = 0;
 
@@ -2003,9 +2155,9 @@ static int wdc_do_dump_e6(int fd, __u32 opcode,__u32 data_len,
 		admin_cmd.cdw10 = xfer_size >> 2;
 		admin_cmd.cdw13 = curr_data_offset >> 2;
 
-		ret = nvme_submit_admin_passthru(fd, &admin_cmd);
+		ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
 		if (ret != 0) {
-			fprintf(stderr, "%s: ERROR : WDC : NVMe Status:%s(%x)\n", __func__, nvme_status_to_string(ret), ret);
+			nvme_show_status(ret);
 			fprintf(stderr, "%s: ERROR : WDC : Get chunk %d, size = 0x%x, offset = 0x%x, addr = 0x%lx\n",
 					__func__, i, admin_cmd.data_len, curr_data_offset, (long unsigned int)admin_cmd.addr);
 			break;
@@ -2017,9 +2169,11 @@ static int wdc_do_dump_e6(int fd, __u32 opcode,__u32 data_len,
 	}
 
 	if (ret == 0) {
-		fprintf(stderr, "%s:  NVMe Status:%s(%x)\n", __func__, nvme_status_to_string(ret), ret);
+		fprintf(stderr, "%s:  ", __func__);
+		nvme_show_status(ret);
 	} else {
-		fprintf(stderr, "%s:  FAILURE: NVMe Status:%s(%x)\n", __func__, nvme_status_to_string(ret), ret);
+		fprintf(stderr, "%s:  FAILURE: ", __func__);
+		nvme_show_status(ret);
 		fprintf(stderr, "%s:  Partial data may have been captured\n", __func__);
 		snprintf(file + strlen(file), PATH_MAX, "%s", "-PARTIAL");
 	}
@@ -2032,40 +2186,66 @@ static int wdc_do_dump_e6(int fd, __u32 opcode,__u32 data_len,
 
 static int wdc_do_cap_telemetry_log(int fd, char *file, __u32 bs, int type, int data_area)
 {
-	struct nvme_telemetry_log_page_hdr *hdr;
-	struct nvme_id_ctrl ctrl;
-	size_t full_size, offset = WDC_TELEMETRY_HEADER_LENGTH;
+	struct nvme_telemetry_log *log;
+	size_t full_size = 0;
 	int err = 0, output;
-	void *page_log;
 	__u32 host_gen = 1;
 	int ctrl_init = 0;
 	__u32 result;
 	void *buf = NULL;
+	__u8 *data_ptr = NULL;
+	int data_written = 0, data_remaining = 0;
+	struct nvme_id_ctrl ctrl;
+	__u64 capabilities = 0;
+	nvme_root_t r;
 
+	memset(&ctrl, 0, sizeof (struct nvme_id_ctrl));
+	err = nvme_identify_ctrl(fd, &ctrl);
+	if (err) {
+		fprintf(stderr, "ERROR : WDC : nvme_identify_ctrl() failed "
+				"0x%x\n", err);
+		goto close_fd;
+	}
+
+	if (!(ctrl.lpa & 0x8)) {
+		fprintf(stderr, "Telemetry Host-Initiated and Telemetry Controller-Initiated log pages not supported\n");
+		err = -EINVAL;
+		goto close_fd;
+	}
+
+	r = nvme_scan(NULL);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 
 	if (type == WDC_TELEMETRY_TYPE_HOST) {
 		host_gen = 1;
 		ctrl_init = 0;
 	} else if (type == WDC_TELEMETRY_TYPE_CONTROLLER) {
-		/* Verify the Controller Initiated Option is enabled */
-		err = nvme_get_feature(fd, 0, WDC_VU_DISABLE_CNTLR_TELEMETRY_OPTION_FEATURE_ID, 0, 0,
-				0, 4, buf, &result);
-		if (err == 0) {
-			if (result == 0) {
-				/* enabled */
-				host_gen = 0;
-				ctrl_init = 1;
+		if ((capabilities & WDC_DRIVE_CAP_INTERNAL_LOG) == WDC_DRIVE_CAP_INTERNAL_LOG) {
+			/* Verify the Controller Initiated Option is enabled */
+			err = nvme_get_features_data(fd, WDC_VU_DISABLE_CNTLR_TELEMETRY_OPTION_FEATURE_ID, 0,
+					4, buf, &result);
+			if (err == 0) {
+				if (result == 0) {
+					/* enabled */
+					host_gen = 0;
+					ctrl_init = 1;
+				}
+				else {
+					fprintf(stderr, "%s: Controller initiated option telemetry log page disabled\n", __func__);
+					err = -EINVAL;
+					goto close_fd;
+				}
 			}
 			else {
-				fprintf(stderr, "%s: Controller initiated option telemetry log page disabled\n", __func__);
-				err = -EINVAL;
+				fprintf(stderr, "ERROR : WDC: Get telemetry option feature failed.");
+				nvme_show_status(err);
+				err = -EPERM;
 				goto close_fd;
 			}
-		} else {
-			fprintf(stderr, "ERROR : WDC: Get telemetry option feature failed.  NVMe Status:%s(%x)\n",
-					nvme_status_to_string(err), err);
-			err = -EPERM;
-			goto close_fd;
+		}
+		else {
+			host_gen = 0;
+			ctrl_init = 1;
 		}
 	} else {
 		fprintf(stderr, "%s: Invalid type parameter; type = %d\n", __func__, type);
@@ -2079,25 +2259,21 @@ static int wdc_do_cap_telemetry_log(int fd, char *file, __u32 bs, int type, int
 		goto close_fd;
 	}
 
-	hdr = malloc(bs);
-	page_log = malloc(bs);
-	if (!hdr || !page_log) {
-		fprintf(stderr, "%s: Failed to allocate 0x%x bytes for log: %s\n",
-				__func__, bs, strerror(errno));
-		err = -ENOMEM;
-		goto free_mem;
-	}
-	memset(hdr, 0, bs);
-
 	output = open(file, O_WRONLY | O_CREAT | O_TRUNC, 0666);
 	if (output < 0) {
 		fprintf(stderr, "%s: Failed to open output file %s: %s!\n",
 				__func__, file, strerror(errno));
 		err = output;
-		goto free_mem;
+		goto close_fd;
 	}
 
-	err = nvme_get_telemetry_log(fd, hdr, host_gen, ctrl_init, WDC_TELEMETRY_HEADER_LENGTH, 0);
+	if (ctrl_init)
+		err = nvme_get_ctrl_telemetry(fd, true, &log, data_area, &full_size);
+	else if (host_gen)
+		err = nvme_get_new_host_telemetry(fd, &log, data_area, &full_size);
+	else
+		err = nvme_get_host_telemetry(fd, &log, data_area, &full_size);
+
 	if (err < 0)
 		perror("get-telemetry-log");
 	else if (err > 0) {
@@ -2106,102 +2282,39 @@ static int wdc_do_cap_telemetry_log(int fd, char *file, __u32 bs, int type, int
 		goto close_output;
 	}
 
-	err = write(output, (void *) hdr, WDC_TELEMETRY_HEADER_LENGTH);
-	if (err != WDC_TELEMETRY_HEADER_LENGTH) {
-		fprintf(stderr, "%s: Failed to flush header data to file!, err = %d\n", __func__, err);
-		goto close_output;
-	}
-
-	switch (data_area) {
-	case 1:
-		full_size = (le16_to_cpu(hdr->dalb1) * WDC_TELEMETRY_BLOCK_SIZE) + WDC_TELEMETRY_HEADER_LENGTH;
-		break;
-	case 2:
-		full_size = (le16_to_cpu(hdr->dalb2) * WDC_TELEMETRY_BLOCK_SIZE) + WDC_TELEMETRY_HEADER_LENGTH;
-		break;
-	case 3:
-		full_size = (le16_to_cpu(hdr->dalb3) * WDC_TELEMETRY_BLOCK_SIZE) + WDC_TELEMETRY_HEADER_LENGTH;
-		break;
-	case 4:
-		err = nvme_identify_ctrl(fd, &ctrl);
-		if (err) {
-			perror("identify-ctrl");
-			goto close_output;
-		}
-		
-		if (posix_memalign(&buf, getpagesize(), get_feat_buf_len(NVME_FEAT_HOST_BEHAVIOR))) {
-			fprintf(stderr, "can not allocate feature payload\n");
-			errno = ENOMEM;
-			err = -1;
-			goto close_output;
-		}
-		memset(buf, 0, get_feat_buf_len(NVME_FEAT_HOST_BEHAVIOR));
-
-		err = nvme_get_feature(fd, NVME_NSID_ALL, NVME_FEAT_HOST_BEHAVIOR, 0, 0,
-				0, get_feat_buf_len(NVME_FEAT_HOST_BEHAVIOR), buf, &result);
-		if (err > 0) {
-			nvme_show_status(err);
-		} else if (err < 0) {
-			perror("get-feature");
-		} else {
-			if ((ctrl.lpa & 0x40)) {
-				if (((unsigned char *)buf)[1] == 1)
-					full_size = (le32_to_cpu(hdr->dalb4) * WDC_TELEMETRY_BLOCK_SIZE) + WDC_TELEMETRY_HEADER_LENGTH;
-				else {
-					fprintf(stderr, "Data area 4 unsupported, Host Behavior Support ETDAS not set to 1\n");
-					errno = EINVAL;
-					err = -1;
-				}
-			} else {
-				fprintf(stderr, "Data area 4 unsupported, bit 6 of Log Page Attributes not set\n");
-				errno = EINVAL;
-				err = -1;
-			}
-		}
-		free(buf);
-		if (err)
-			goto close_output;
-		break;
-	default:
-		fprintf(stderr, "%s: Invalid data area requested, data area = %d\n", __func__, data_area);
-		err = -EINVAL;
-		goto close_output;
-	}
-
 	/*
 	 * Continuously pull data until the offset hits the end of the last
 	 * block.
 	 */
-	while (offset < full_size) {
-		if ((full_size - offset) < bs)
-			bs = (full_size - offset);
+	data_written = 0;
+	data_remaining = full_size;
+	data_ptr = (__u8 *)log;
 
+	while (data_remaining) {
+		data_written = write(output, data_ptr, data_remaining);
 
-		err = nvme_get_telemetry_log(fd, page_log, 0, ctrl_init, bs, offset);
-		if (err < 0) {
-			perror("get-telemetry-log");
+		if (data_written < 0) {
+			data_remaining = data_written;
 			break;
-		} else if (err > 0) {
-			nvme_show_status(err);
-			fprintf(stderr, "%s: Failed to acquire full telemetry log!\n", __func__);
-			nvme_show_status(err);
+		} else if (data_written <= data_remaining) {
+			data_remaining -= data_written;
+			data_ptr += data_written;
+		} else {
+			/* Unexpected overwrite */
+			fprintf(stderr, "Failure: Unexpected telemetry log overwrite - data_remaining = 0x%x, data_written = 0x%x\n",
+					data_remaining, data_written);
 			break;
 		}
+	}
 
-		err = write(output, (void *) page_log, bs);
-		if (err != bs) {
-			fprintf(stderr, "%s: Failed to flush telemetry data to file!, err = %d\n", __func__, err);
-			break;
-		}
-		err = 0;
-		offset += bs;
+	if (fsync(output) < 0) {
+		fprintf(stderr, "ERROR : %s: fsync : %s\n", __func__, strerror(errno));
+		return -1;
 	}
 
+	free(log);
 close_output:
 	close(output);
-free_mem:
-	free(hdr);
-	free(page_log);
 close_fd:
 	close(fd);
 
@@ -2209,7 +2322,8 @@ close_fd:
 
 }
 
-static int wdc_do_cap_diag(int fd, char *file, __u32 xfer_size, int type, int data_area)
+static int wdc_do_cap_diag(nvme_root_t r, int fd, char *file,
+			   __u32 xfer_size, int type, int data_area)
 {
 	int ret = -1;
 	__u32 e6_log_hdr_size = WDC_NVME_CAP_DIAG_HEADER_TOC_SIZE;
@@ -2287,7 +2401,8 @@ static int wdc_do_cap_dui(int fd, char *file, __u32 xfer_size, int data_area, in
 	ret = wdc_dump_dui_data(fd, WDC_NVME_CAP_DUI_HEADER_SIZE, 0x00,	(__u8 *)log_hdr, last_xfer);
 	if (ret != 0) {
 		fprintf(stderr, "%s: ERROR : WDC : Get DUI headers failed\n", __func__);
-		fprintf(stderr, "%s: ERROR : WDC : NVMe Status:%s(%x)\n", __func__, nvme_status_to_string(ret), ret);
+		fprintf(stderr, "%s: ERROR : WDC : ", __func__);
+		nvme_show_status(ret);
 		goto out;
 	}
 
@@ -2368,7 +2483,9 @@ static int wdc_do_cap_dui(int fd, char *file, __u32 xfer_size, int data_area, in
 				if (ret != 0) {
 					fprintf(stderr, "%s: ERROR : WDC : Get chunk %d, size = 0x%"PRIx64", offset = 0x%x, addr = %p\n",
 							__func__, i, (uint64_t)log_size, curr_data_offset, buffer_addr);
-					fprintf(stderr, "%s: ERROR : WDC : NVMe Status:%s(%x)\n", __func__, nvme_status_to_string(ret), ret);
+					fprintf(stderr, "%s: ERROR : WDC : ",
+						__func__);
+					nvme_show_status(ret);
 					break;
 				}
 
@@ -2480,7 +2597,8 @@ static int wdc_do_cap_dui(int fd, char *file, __u32 xfer_size, int data_area, in
 				if (ret != 0) {
 					fprintf(stderr, "%s: ERROR : WDC : Get chunk %d, size = 0x%"PRIx64", offset = 0x%"PRIx64", addr = %p\n",
 							__func__, i, (uint64_t)total_size, (uint64_t)curr_data_offset, buffer_addr);
-					fprintf(stderr, "%s: ERROR : WDC : NVMe Status:%s(%x)\n", __func__, nvme_status_to_string(ret), ret);
+					fprintf(stderr, "%s: ERROR : WDC : ", __func__);
+					nvme_show_status(ret);
 					break;
 				}
 
@@ -2594,7 +2712,8 @@ static int wdc_do_cap_dui(int fd, char *file, __u32 xfer_size, int data_area, in
 				if (ret != 0) {
 					fprintf(stderr, "%s: ERROR : WDC : Get chunk %d, size = 0x%"PRIx64", offset = 0x%"PRIx64", addr = %p\n",
 							__func__, i, (uint64_t)log_size, (uint64_t)curr_data_offset, buffer_addr);
-					fprintf(stderr, "%s: ERROR : WDC : NVMe Status:%s(%x)\n", __func__, nvme_status_to_string(ret), ret);
+					fprintf(stderr, "%s: ERROR : WDC :", __func__);
+					nvme_show_status(ret);
 					break;
 				}
 
@@ -2616,8 +2735,7 @@ static int wdc_do_cap_dui(int fd, char *file, __u32 xfer_size, int data_area, in
         goto out;
 	}
 
-
-	fprintf(stderr, "%s:  NVMe Status:%s(%x)\n", __func__, nvme_status_to_string(ret), ret);
+	nvme_show_status(ret);
 	if (verbose)
 		fprintf(stderr, "INFO : WDC : Capture Device Unit Info log, length = 0x%"PRIx64"\n", (uint64_t)total_size);
 
@@ -2633,6 +2751,7 @@ static int wdc_do_cap_dui(int fd, char *file, __u32 xfer_size, int data_area, in
 static int wdc_cap_diag(int argc, char **argv, struct command *command,
 		struct plugin *plugin)
 {
+	nvme_root_t r;
 	char *desc = "Capture Diagnostics Log.";
 	char *file = "Output file pathname.";
 	char *size = "Data retrieval transfer size.";
@@ -2657,6 +2776,8 @@ static int wdc_cap_diag(int argc, char **argv, struct command *command,
 		OPT_END()
 	};
 
+	r = nvme_scan(NULL);
+
 	fd = parse_and_open(argc, argv, desc, opts);
 	if (fd < 0)
 		return fd;
@@ -2672,11 +2793,12 @@ static int wdc_cap_diag(int argc, char **argv, struct command *command,
 	if (cfg.file == NULL)
 		snprintf(f + strlen(f), PATH_MAX, "%s", ".bin");
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 	if ((capabilities & WDC_DRIVE_CAP_CAP_DIAG) == WDC_DRIVE_CAP_CAP_DIAG)
-		return wdc_do_cap_diag(fd, f, xfer_size, 0, 0);
+		return wdc_do_cap_diag(r, fd, f, xfer_size, 0, 0);
 
 	fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
+	nvme_free_tree(r);
 	return 0;
 }
 
@@ -2684,14 +2806,14 @@ static int wdc_do_get_sn730_log_len(int fd, uint32_t *len_buf, uint32_t subopcod
 {
 	int ret;
 	uint32_t *output = NULL;
-	struct nvme_admin_cmd admin_cmd;
+	struct nvme_passthru_cmd admin_cmd;
 
 	if ((output = (uint32_t*)malloc(sizeof(uint32_t))) == NULL) {
 		fprintf(stderr, "ERROR : WDC : malloc : %s\n", strerror(errno));
 		return -1;
 	}
 	memset(output, 0, sizeof (uint32_t));
-	memset(&admin_cmd, 0, sizeof (struct nvme_admin_cmd));
+	memset(&admin_cmd, 0, sizeof (struct nvme_passthru_cmd));
 
 	admin_cmd.data_len = 8;
 	admin_cmd.opcode = SN730_NVME_GET_LOG_OPCODE;
@@ -2699,7 +2821,7 @@ static int wdc_do_get_sn730_log_len(int fd, uint32_t *len_buf, uint32_t subopcod
 	admin_cmd.cdw12 = subopcode;
 	admin_cmd.cdw10 = SN730_LOG_CHUNK_SIZE / 4;
 
-	ret = nvme_submit_admin_passthru(fd, &admin_cmd);
+	ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
 	if (ret == 0)
 		*len_buf = *output;
 	free(output);
@@ -2710,13 +2832,13 @@ static int wdc_do_get_sn730_log(int fd, void * log_buf, uint32_t offset, uint32_
 {
 	int ret;
 	uint8_t *output = NULL;
-	struct nvme_admin_cmd admin_cmd;
+	struct nvme_passthru_cmd admin_cmd;
 
 	if ((output = (uint8_t*)calloc(SN730_LOG_CHUNK_SIZE, sizeof(uint8_t))) == NULL) {
 		fprintf(stderr, "ERROR : WDC : calloc : %s\n", strerror(errno));
 		return -1;
 	}
-	memset(&admin_cmd, 0, sizeof (struct nvme_admin_cmd));
+	memset(&admin_cmd, 0, sizeof (struct nvme_passthru_cmd));
 	admin_cmd.data_len = SN730_LOG_CHUNK_SIZE;
 	admin_cmd.opcode = SN730_NVME_GET_LOG_OPCODE;
 	admin_cmd.addr = (uintptr_t)output;
@@ -2724,7 +2846,7 @@ static int wdc_do_get_sn730_log(int fd, void * log_buf, uint32_t offset, uint32_
 	admin_cmd.cdw13 = offset;
 	admin_cmd.cdw10 = SN730_LOG_CHUNK_SIZE / 4;
 
-	ret = nvme_submit_admin_passthru(fd, &admin_cmd);
+	ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
 	if (!ret)
 		memcpy(log_buf, output, SN730_LOG_CHUNK_SIZE);
 	return ret;
@@ -2816,22 +2938,22 @@ static int wdc_do_sn730_get_and_tar(int fd, char * outputName)
 
 	ret = wdc_do_get_sn730_log_len(fd, &full_log_len, SN730_GET_FULL_LOG_LENGTH);
 	if (ret) {
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 		goto free_buf;
 	}
 	ret = wdc_do_get_sn730_log_len(fd, &key_log_len, SN730_GET_KEY_LOG_LENGTH);
 	if (ret) {
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 		goto free_buf;
 	}
 	ret = wdc_do_get_sn730_log_len(fd, &core_dump_log_len, SN730_GET_COREDUMP_LOG_LENGTH);
 	if (ret) {
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 		goto free_buf;
 	}
 	ret = wdc_do_get_sn730_log_len(fd, &extended_log_len, SN730_GET_EXTENDED_LOG_LENGTH);
 	if (ret) {
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 		goto free_buf;
 	}
 
@@ -2849,28 +2971,28 @@ static int wdc_do_sn730_get_and_tar(int fd, char * outputName)
 	/* Get the full log */
 	ret = get_sn730_log_chunks(fd, full_log_buf, full_log_len, SN730_GET_FULL_LOG_SUBOPCODE);
 	if (ret) {
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 		goto free_buf;
 	}
 
 	/* Get the key log */
 	ret = get_sn730_log_chunks(fd, key_log_buf, key_log_len, SN730_GET_KEY_LOG_SUBOPCODE);
 	if (ret) {
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 		goto free_buf;
 	}
 
 	/* Get the core dump log */
 	ret = get_sn730_log_chunks(fd, core_dump_log_buf, core_dump_log_len, SN730_GET_CORE_LOG_SUBOPCODE);
 	if (ret) {
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 		goto free_buf;
 	}
 
 	/* Get the extended log */
 	ret = get_sn730_log_chunks(fd, extended_log_buf, extended_log_len, SN730_GET_EXTEND_LOG_SUBOPCODE);
 	if (ret) {
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 		goto free_buf;
 	}
 
@@ -2919,10 +3041,11 @@ static int wdc_vs_internal_fw_log(int argc, char **argv, struct command *command
 	char *data_area = "Data area to retrieve up to. Currently only supported on the SN340, SN640, SN730, and SN840 devices.";
 	char *file_size = "Output file size.  Currently only supported on the SN340 device.";
 	char *offset = "Output file data offset. Currently only supported on the SN340 device.";
-	char *type = "Telemetry type - NONE, HOST, or CONTROLLER. Currently only supported on the SN640 and SN840 devices.";
+	char *type = "Telemetry type - NONE, HOST, or CONTROLLER. Currently only supported on the SN530, SN640, SN730, SN740, SN810, SN840 and ZN350 devices.";
 	char *verbose = "Display more debug messages.";
 	char f[PATH_MAX] = {0};
 	char fileSuffix[PATH_MAX] = {0};
+	nvme_root_t r;
 	__u32 xfer_size = 0;
 	int fd;
 	int telemetry_type = 0, telemetry_data_area = 0;
@@ -2937,7 +3060,7 @@ static int wdc_vs_internal_fw_log(int argc, char **argv, struct command *command
 		__u64 file_size;
 		__u64 offset;
 		char *type;
-		int verbose;
+		bool verbose;
 	};
 
 	struct config cfg = {
@@ -2947,7 +3070,7 @@ static int wdc_vs_internal_fw_log(int argc, char **argv, struct command *command
 		.file_size = 0,
 		.offset = 0,
 		.type = NULL,
-		.verbose = 0,
+		.verbose = false,
 	};
 
 	OPT_ARGS(opts) = {
@@ -2965,12 +3088,16 @@ static int wdc_vs_internal_fw_log(int argc, char **argv, struct command *command
 	if (fd < 0)
 		return fd;
 
-	if (!wdc_check_device(fd))
+	r = nvme_scan(NULL);
+	if (!wdc_check_device(r, fd)) {
+		nvme_free_tree(r);
 		return -1;
+	}
 	if (cfg.xfer_size != 0)
 		xfer_size = cfg.xfer_size;
 	else {
 		fprintf(stderr, "ERROR : WDC : Invalid length\n");
+		nvme_free_tree(r);
 		return -1;
 	}
 
@@ -3010,43 +3137,64 @@ static int wdc_vs_internal_fw_log(int argc, char **argv, struct command *command
 		}
 	}
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	if ((cfg.type == NULL) ||
+		(!strcmp(cfg.type, "NONE")) ||
+		(!strcmp(cfg.type, "none"))) {
+		telemetry_type = WDC_TELEMETRY_TYPE_NONE;
+		data_area = 0;
+	} else if ((!strcmp(cfg.type, "HOST")) ||
+			(!strcmp(cfg.type, "host"))) {
+		telemetry_type = WDC_TELEMETRY_TYPE_HOST;
+		telemetry_data_area = cfg.data_area;
+	} else if ((!strcmp(cfg.type, "CONTROLLER")) ||
+			(!strcmp(cfg.type, "controller"))) {
+		telemetry_type = WDC_TELEMETRY_TYPE_CONTROLLER;
+		telemetry_data_area = cfg.data_area;
+	} else {
+		fprintf(stderr, "ERROR : WDC: Invalid type - Must be NONE, HOST or CONTROLLER\n");
+		return -1;
+	}
+
+	capabilities = wdc_get_drive_capabilities(r, fd);
 	if ((capabilities & WDC_DRIVE_CAP_INTERNAL_LOG) == WDC_DRIVE_CAP_INTERNAL_LOG) {
-		if (cfg.data_area == 0)
-			cfg.data_area = 3;       /* Set the default DA to 3 if not specified */
-
-		if ((cfg.type == NULL) ||
-			(!strcmp(cfg.type, "NONE")) ||
-			(!strcmp(cfg.type, "none"))) {
-			telemetry_type = WDC_TELEMETRY_TYPE_NONE;
-			data_area = 0;
-		} else if ((!strcmp(cfg.type, "HOST")) ||
-				(!strcmp(cfg.type, "host"))) {
-			telemetry_type = WDC_TELEMETRY_TYPE_HOST;
-			telemetry_data_area = cfg.data_area;
-		} else if ((!strcmp(cfg.type, "CONTROLLER")) ||
-				(!strcmp(cfg.type, "controller"))) {
-			telemetry_type = WDC_TELEMETRY_TYPE_CONTROLLER;
-			telemetry_data_area = cfg.data_area;
-		} else {
-			fprintf(stderr, "ERROR : WDC: Invalid type - Must be NONE, HOST or CONTROLLER\n");
-			return -1;
-		}
+		if (telemetry_data_area == 0)
+			telemetry_data_area = 3;       /* Set the default DA to 3 if not specified */
 
-		return wdc_do_cap_diag(fd, f, xfer_size, telemetry_type, telemetry_data_area);
+		return wdc_do_cap_diag(r, fd, f, xfer_size,
+				       telemetry_type, telemetry_data_area);
 	}
 	if ((capabilities & WDC_DRIVE_CAP_DUI) == WDC_DRIVE_CAP_DUI) {
-		if (cfg.data_area == 0) {
-			cfg.data_area = 1;
+		if ((telemetry_type == WDC_TELEMETRY_TYPE_HOST) ||
+			(telemetry_type == WDC_TELEMETRY_TYPE_CONTROLLER)) {
+			if (telemetry_data_area == 0)
+				telemetry_data_area = 3;       /* Set the default DA to 3 if not specified */
+			/* Get the desired telemetry log page */
+			return wdc_do_cap_telemetry_log(fd, f, xfer_size, telemetry_type, telemetry_data_area);
 		}
+		else {
+			if (cfg.data_area == 0) {
+				cfg.data_area = 1;
+			}
 
-		/* FW requirement - xfer size must be 256k for data area 4 */
-		if (cfg.data_area >= 4)
-			xfer_size = 0x40000;
-		return wdc_do_cap_dui(fd, f, xfer_size, cfg.data_area, cfg.verbose, cfg.file_size, cfg.offset);
+			/* FW requirement - xfer size must be 256k for data area 4 */
+			if (cfg.data_area >= 4)
+				xfer_size = 0x40000;
+			return wdc_do_cap_dui(fd, f, xfer_size, cfg.data_area,
+					      cfg.verbose, cfg.file_size, cfg.offset);
+		}
+	}
+	if ((capabilities & WDC_DRIVE_CAP_DUI_DATA) == WDC_DRIVE_CAP_DUI_DATA){
+		if ((telemetry_type == WDC_TELEMETRY_TYPE_HOST) ||
+			(telemetry_type == WDC_TELEMETRY_TYPE_CONTROLLER)) {
+			if (telemetry_data_area == 0)
+				telemetry_data_area = 3;       /* Set the default DA to 3 if not specified */
+			/* Get the desired telemetry log page */
+			return wdc_do_cap_telemetry_log(fd, f, xfer_size, telemetry_type, telemetry_data_area);
+		}
+		else {
+			return wdc_do_cap_dui(fd, f, xfer_size, WDC_NVME_DUI_MAX_DATA_AREA, cfg.verbose, 0, 0);
+		}
 	}
-	if ((capabilities & WDC_DRIVE_CAP_DUI_DATA) == WDC_DRIVE_CAP_DUI_DATA)
-		return wdc_do_cap_dui(fd, f, xfer_size, WDC_NVME_DUI_MAX_DATA_AREA, cfg.verbose, 0, 0);
 	if ((capabilities & WDC_SN730B_CAP_VUC_LOG) == WDC_SN730B_CAP_VUC_LOG)
 		return wdc_do_sn730_get_and_tar(fd, f);
 
@@ -3151,7 +3299,7 @@ static int wdc_do_drive_log(int fd, char *file)
 	int ret;
 	__u8 *drive_log_data;
 	__u32 drive_log_length;
-	struct nvme_admin_cmd admin_cmd;
+	struct nvme_passthru_cmd admin_cmd;
 
 	ret = wdc_dump_length(fd, WDC_NVME_DRIVE_LOG_SIZE_OPCODE,
 			WDC_NVME_DRIVE_LOG_SIZE_NDT,
@@ -3169,7 +3317,7 @@ static int wdc_do_drive_log(int fd, char *file)
 	}
 
 	memset(drive_log_data, 0, sizeof (__u8) * drive_log_length);
-	memset(&admin_cmd, 0, sizeof (struct nvme_admin_cmd));
+	memset(&admin_cmd, 0, sizeof (struct nvme_passthru_cmd));
 	admin_cmd.opcode = WDC_NVME_DRIVE_LOG_OPCODE;
 	admin_cmd.addr = (__u64)(uintptr_t)drive_log_data;
 	admin_cmd.data_len = drive_log_length;
@@ -3177,9 +3325,8 @@ static int wdc_do_drive_log(int fd, char *file)
 	admin_cmd.cdw12 = ((WDC_NVME_DRIVE_LOG_SUBCMD <<
 				WDC_NVME_SUBCMD_SHIFT) | WDC_NVME_DRIVE_LOG_SIZE_CMD);
 
-	ret = nvme_submit_admin_passthru(fd, &admin_cmd);
-	fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret),
-			ret);
+	ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
+	nvme_show_status(ret);
 	if (ret == 0) {
 		ret = wdc_create_log_file(file, drive_log_data, drive_log_length);
 	}
@@ -3195,6 +3342,7 @@ static int wdc_drive_log(int argc, char **argv, struct command *command,
 	char f[PATH_MAX] = {0};
 	int fd;
 	int ret;
+	nvme_root_t r;
 	__u64 capabilities = 0;
 	struct config {
 		char *file;
@@ -3213,9 +3361,13 @@ static int wdc_drive_log(int argc, char **argv, struct command *command,
 	if (fd < 0)
 		return fd;
 
-	if (!wdc_check_device(fd))
+	r = nvme_scan(NULL);
+
+	if (!wdc_check_device(r, fd)) {
+		nvme_free_tree(r);
 		return -1;
-	capabilities = wdc_get_drive_capabilities(fd);
+	}
+	capabilities = wdc_get_drive_capabilities(r, fd);
 
 	if ((capabilities & WDC_DRIVE_CAP_DRIVE_LOG) == 0) {
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
@@ -3226,10 +3378,12 @@ static int wdc_drive_log(int argc, char **argv, struct command *command,
 		}
 		if (wdc_get_serial_name(fd, f, PATH_MAX, "drive_log") == -1) {
 			fprintf(stderr, "ERROR : WDC : failed to generate file name\n");
+			nvme_free_tree(r);
 			return -1;
 		}
 		ret = wdc_do_drive_log(fd, f);
 	}
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -3239,6 +3393,7 @@ static int wdc_get_crash_dump(int argc, char **argv, struct command *command,
 	const char *desc = "Get Crash Dump.";
 	const char *file = "Output file pathname.";
 	int fd, ret;
+	nvme_root_t r;
 	__u64 capabilities = 0;
 
 	struct config {
@@ -3258,10 +3413,15 @@ static int wdc_get_crash_dump(int argc, char **argv, struct command *command,
 	if (fd < 0)
 		return fd;
 
-	if (!wdc_check_device(fd))
+	r = nvme_scan(NULL);
+
+	if (!wdc_check_device(r, fd)) {
+		nvme_free_tree(r);
 		return -1;
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	}
+
+	capabilities = wdc_get_drive_capabilities(r, fd);
 
 	if ((capabilities & WDC_DRIVE_CAP_CRASH_DUMP) == 0) {
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
@@ -3272,6 +3432,7 @@ static int wdc_get_crash_dump(int argc, char **argv, struct command *command,
 			fprintf(stderr, "ERROR : WDC : failed to read crash dump\n");
 		}
 	}
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -3282,6 +3443,7 @@ static int wdc_get_pfail_dump(int argc, char **argv, struct command *command,
 	char *file = "Output file pathname.";
 	int fd;
 	int ret;
+	nvme_root_t r;
 	__u64 capabilities = 0;
 	struct config {
 		char *file;
@@ -3300,10 +3462,14 @@ static int wdc_get_pfail_dump(int argc, char **argv, struct command *command,
 	if (fd < 0)
 		return fd;
 
-	if (!wdc_check_device(fd))
+	r = nvme_scan(NULL);
+
+	if (!wdc_check_device(r, fd)) {
+		nvme_free_tree(r);
 		return -1;
+	}
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 	if ((capabilities & WDC_DRIVE_CAP_PFAIL_DUMP) == 0) {
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
 		ret = -1;
@@ -3313,7 +3479,7 @@ static int wdc_get_pfail_dump(int argc, char **argv, struct command *command,
 			fprintf(stderr, "ERROR : WDC : failed to read pfail crash dump\n");
 		}
 	}
-
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -3371,6 +3537,7 @@ static int wdc_purge(int argc, char **argv,
 	const char *desc = "Send a Purge command.";
 	char *err_str;
 	int fd, ret;
+	nvme_root_t r;
 	struct nvme_passthru_cmd admin_cmd;
 	__u64 capabilities = 0;
 
@@ -3382,10 +3549,14 @@ static int wdc_purge(int argc, char **argv,
 	if (fd < 0)
 		return fd;
 
-	if (!wdc_check_device(fd))
+	r = nvme_scan(NULL);
+
+	if (!wdc_check_device(r, fd)) {
+		nvme_free_tree(r);
 		return -1;
+	}
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 	if((capabilities & WDC_DRIVE_CAP_PURGE) == 0) {
 		ret = -1;
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
@@ -3394,7 +3565,7 @@ static int wdc_purge(int argc, char **argv,
 		memset(&admin_cmd, 0, sizeof (admin_cmd));
 		admin_cmd.opcode = WDC_NVME_PURGE_CMD_OPCODE;
 
-		ret = nvme_submit_admin_passthru(fd, &admin_cmd);
+		ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
 		if (ret > 0) {
 			switch (ret) {
 			case WDC_NVME_PURGE_CMD_SEQ_ERR:
@@ -3410,8 +3581,9 @@ static int wdc_purge(int argc, char **argv,
 		}
 
 		fprintf(stderr, "%s", err_str);
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 	}
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -3420,11 +3592,12 @@ static int wdc_purge_monitor(int argc, char **argv,
 {
 	const char *desc = "Send a Purge Monitor command.";
 	int fd, ret;
+	nvme_root_t r;
 	__u8 output[WDC_NVME_PURGE_MONITOR_DATA_LEN];
 	double progress_percent;
 	struct nvme_passthru_cmd admin_cmd;
 	struct wdc_nvme_purge_monitor_data *mon;
-	__u64 capabilities = 0;
+	__u64 capabilities;
 
 	OPT_ARGS(opts) = {
 		OPT_END()
@@ -3434,23 +3607,26 @@ static int wdc_purge_monitor(int argc, char **argv,
 	if (fd < 0)
 		return fd;
 
-	if (!wdc_check_device(fd))
+	r = nvme_scan(NULL);
+	if (!wdc_check_device(r, fd)) {
+		nvme_free_tree(r);
 		return -1;
+	}
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 	if((capabilities & WDC_DRIVE_CAP_PURGE) == 0) {
 		ret = -1;
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
 	} else {
 		memset(output, 0, sizeof (output));
-		memset(&admin_cmd, 0, sizeof (struct nvme_admin_cmd));
+		memset(&admin_cmd, 0, sizeof (struct nvme_passthru_cmd));
 		admin_cmd.opcode = WDC_NVME_PURGE_MONITOR_OPCODE;
 		admin_cmd.addr = (__u64)(uintptr_t)output;
 		admin_cmd.data_len = WDC_NVME_PURGE_MONITOR_DATA_LEN;
 		admin_cmd.cdw10 = WDC_NVME_PURGE_MONITOR_CMD_CDW10;
 		admin_cmd.timeout_ms = WDC_NVME_PURGE_MONITOR_TIMEOUT;
 
-		ret = nvme_submit_admin_passthru(fd, &admin_cmd);
+		ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
 		if (ret == 0) {
 			mon = (struct wdc_nvme_purge_monitor_data *) output;
 			printf("Purge state = 0x%0x\n", admin_cmd.result);
@@ -3463,8 +3639,9 @@ static int wdc_purge_monitor(int argc, char **argv,
 			}
 		}
 
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 	}
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -3762,6 +3939,168 @@ static void wdc_print_latency_monitor_log_json(struct wdc_ssd_latency_monitor_lo
 	json_free_object(root);
 }
 
+static void wdc_print_error_rec_log_normal(int fd, struct wdc_ocp_c1_error_recovery_log *log_data)
+{
+	int j;
+	printf("Error Recovery/C1 Log Page Data \n");
+
+	printf("  Panic Reset Wait Time             : 0x%x \n", le16_to_cpu(log_data->panic_reset_wait_time));
+	printf("  Panic Reset Action                : 0x%x \n", log_data->panic_reset_action);
+	printf("  Device Recovery Action 1          : 0x%x \n", log_data->dev_recovery_action1);
+	printf("  Panic ID                          : 0x%lx \n", le64_to_cpu(log_data->panic_id));
+	printf("  Device Capabilities               : 0x%x \n", le32_to_cpu(log_data->dev_capabilities));
+	printf("  Vendor Specific Recovery Opcode   : 0x%x \n", log_data->vs_recovery_opc);
+	printf("  Vendor Specific Command CDW12     : 0x%x \n", le32_to_cpu(log_data->vs_cmd_cdw12));
+	printf("  Vendor Specific Command CDW13     : 0x%x \n", le32_to_cpu(log_data->vs_cmd_cdw13));
+	printf("  Vendor Specific Command Timeout   : 0x%x \n", log_data->vs_cmd_to);
+	printf("  Device Recovery Action 2          : 0x%x \n", log_data->dev_recovery_action2);
+	printf("  Device Recovery Action 2 Timeout  : 0x%x \n", log_data->dev_recovery_action2_to);
+	printf("  Log Page Version                  : 0x%x \n", le16_to_cpu(log_data->log_page_version));
+	printf("  Log page GUID			    : 0x");
+	for (j = 0; j < WDC_OCP_C1_GUID_LENGTH; j++) {
+		printf("%x", log_data->log_page_guid[j]);
+	}
+	printf("\n");
+}
+
+static void wdc_print_error_rec_log_json(struct wdc_ocp_c1_error_recovery_log *log_data)
+{
+	struct json_object *root;
+	root = json_create_object();
+
+	json_object_add_value_int(root, "Panic Reset Wait Time", le16_to_cpu(log_data->panic_reset_wait_time));
+	json_object_add_value_int(root, "Panic Reset Action", log_data->panic_reset_wait_time);
+	json_object_add_value_int(root, "Device Recovery Action 1", log_data->dev_recovery_action1);
+	json_object_add_value_int(root, "Panic ID", le64_to_cpu(log_data->panic_id));
+	json_object_add_value_int(root, "Device Capabilities", le32_to_cpu(log_data->dev_capabilities));
+	json_object_add_value_int(root, "Vendor Specific Recovery Opcode", log_data->vs_recovery_opc);
+	json_object_add_value_int(root, "Vendor Specific Command CDW12", le32_to_cpu(log_data->vs_cmd_cdw12));
+	json_object_add_value_int(root, "Vendor Specific Command CDW13", le32_to_cpu(log_data->vs_cmd_cdw13));
+	json_object_add_value_int(root, "Vendor Specific Command Timeout", log_data->vs_cmd_to);
+	json_object_add_value_int(root, "Device Recovery Action 2", log_data->dev_recovery_action2);
+	json_object_add_value_int(root, "Device Recovery Action 2 Timeout", log_data->dev_recovery_action2_to);
+	json_object_add_value_int(root, "Log Page Version", le16_to_cpu(log_data->log_page_version));
+
+	char guid[40];
+	memset((void*)guid, 0, 40);
+	sprintf((char*)guid, "0x%"PRIx64"%"PRIx64"",(uint64_t)le64_to_cpu(*(uint64_t *)&log_data->log_page_guid[8]),
+		(uint64_t)le64_to_cpu(*(uint64_t *)&log_data->log_page_guid[0]));
+	json_object_add_value_string(root, "Log page GUID", guid);
+
+	json_print_object(root, NULL);
+	printf("\n");
+
+	json_free_object(root);
+}
+
+static void wdc_print_dev_cap_log_normal(int fd, struct wdc_ocp_C4_dev_cap_log *log_data)
+{
+	int j;
+	printf("Device Capabilities/C4 Log Page Data \n");
+
+	printf("  Number PCIE Ports                 	: 0x%x \n", le16_to_cpu(log_data->num_pcie_ports));
+	printf("  Number OOB Management Interfaces  	: 0x%x \n", le16_to_cpu(log_data->oob_mgmt_support));
+	printf("  Write Zeros Command Support       	: 0x%x \n", le16_to_cpu(log_data->wrt_zeros_support));
+	printf("  Sanitize Command Support          	: 0x%x \n", le16_to_cpu(log_data->sanitize_support));
+	printf("  DSM Command Support               	: 0x%x \n", le16_to_cpu(log_data->dsm_support));
+	printf("  Write Uncorr Command Support      	: 0x%x \n", le16_to_cpu(log_data->wrt_uncor_support));
+	printf("  Fused Command Support             	: 0x%x \n", le16_to_cpu(log_data->fused_support));
+	printf("  Minimum DSSD Power State          	: 0x%x \n", le16_to_cpu(log_data->min_dssd_ps));
+
+	for (j = 0; j < WDC_OCP_C4_NUM_PS_DESCR; j++) {
+		printf("  DSSD Power State %d Desriptor  	: 0x%x \n", j, log_data->dssd_ps_descr[j]);
+	}
+
+	printf("  Log Page Version			: 0x%x \n", le16_to_cpu(log_data->log_page_version));
+	printf("  Log page GUID				: 0x");
+	for (j = 0; j < WDC_OCP_C4_GUID_LENGTH; j++) {
+		printf("%x", log_data->log_page_guid[j]);
+	}
+	printf("\n");
+}
+
+static void wdc_print_dev_cap_log_json(struct wdc_ocp_C4_dev_cap_log *log_data)
+{
+	int j;
+	struct json_object *root;
+	root = json_create_object();
+
+	json_object_add_value_int(root, "Number PCIE Ports", le16_to_cpu(log_data->num_pcie_ports));
+	json_object_add_value_int(root, "Number OOB Management Interfaces", le16_to_cpu(log_data->num_pcie_ports));
+	json_object_add_value_int(root, "Write Zeros Command Support", le16_to_cpu(log_data->num_pcie_ports));
+	json_object_add_value_int(root, "Sanitize Command Support", le16_to_cpu(log_data->num_pcie_ports));
+	json_object_add_value_int(root, "DSM Command Support", le16_to_cpu(log_data->num_pcie_ports));
+	json_object_add_value_int(root, "Write Uncorr Command Support", le16_to_cpu(log_data->num_pcie_ports));
+	json_object_add_value_int(root, "Fused Command Support", le16_to_cpu(log_data->num_pcie_ports));
+	json_object_add_value_int(root, "Minimum DSSD Power State", le16_to_cpu(log_data->num_pcie_ports));
+
+	char dssd_descr_str[40];
+	memset((void *)dssd_descr_str, 0, 40);
+	for (j = 0; j < WDC_OCP_C4_NUM_PS_DESCR; j++) {
+		sprintf((char *)dssd_descr_str, "DSSD Power State %d Descriptor", j);
+		json_object_add_value_int(root, dssd_descr_str, log_data->dssd_ps_descr[j]);
+	}
+
+	json_object_add_value_int(root, "Log Page Version", le16_to_cpu(log_data->log_page_version));
+	char guid[40];
+	memset((void*)guid, 0, 40);
+	sprintf((char*)guid, "0x%"PRIx64"%"PRIx64"",(uint64_t)le64_to_cpu(*(uint64_t *)&log_data->log_page_guid[8]),
+		(uint64_t)le64_to_cpu(*(uint64_t *)&log_data->log_page_guid[0]));
+	json_object_add_value_string(root, "Log page GUID", guid);
+
+	json_print_object(root, NULL);
+	printf("\n");
+
+	json_free_object(root);
+}
+
+static void wdc_print_unsupported_reqs_log_normal(int fd, struct wdc_ocp_C5_unsupported_reqs *log_data)
+{
+	int j;
+	printf("Unsupported Requirements/C5 Log Page Data \n");
+
+	printf("  Number Unsupported Req IDs		: 0x%x \n", le16_to_cpu(log_data->unsupported_count));
+
+	for (j = 0; j < le16_to_cpu(log_data->unsupported_count); j++) {
+		printf("  Unsupported Requirement List %d	: %s \n", j, log_data->unsupported_req_list[j]);
+	}
+
+	printf("  Log Page Version			: 0x%x \n", le16_to_cpu(log_data->log_page_version));
+	printf("  Log page GUID				: 0x");
+	for (j = 0; j < WDC_OCP_C5_GUID_LENGTH; j++) {
+		printf("%x", log_data->log_page_guid[j]);
+	}
+	printf("\n");
+}
+
+static void wdc_print_unsupported_reqs_log_json(struct wdc_ocp_C5_unsupported_reqs *log_data)
+{
+	int j;
+	struct json_object *root;
+	root = json_create_object();
+
+	json_object_add_value_int(root, "Number Unsupported Req IDs", le16_to_cpu(log_data->unsupported_count));
+
+	char unsup_req_list_str[40];
+	memset((void *)unsup_req_list_str, 0, 40);
+	for (j = 0; j < le16_to_cpu(log_data->unsupported_count); j++) {
+		sprintf((char *)unsup_req_list_str, "Unsupported Requirement List %d", j);
+		json_object_add_value_string(root, unsup_req_list_str, (char *)log_data->unsupported_req_list[j]);
+	}
+
+	json_object_add_value_int(root, "Log Page Version", le16_to_cpu(log_data->log_page_version));
+	char guid[40];
+	memset((void*)guid, 0, 40);
+	sprintf((char*)guid, "0x%"PRIx64"%"PRIx64"",(uint64_t)le64_to_cpu(*(uint64_t *)&log_data->log_page_guid[8]),
+		(uint64_t)le64_to_cpu(*(uint64_t *)&log_data->log_page_guid[0]));
+	json_object_add_value_string(root, "Log page GUID", guid);
+
+	json_print_object(root, NULL);
+	printf("\n");
+
+	json_free_object(root);
+}
+
 static void wdc_print_fb_ca_log_normal(struct wdc_ssd_ca_perf_stats *perf)
 {
 	uint64_t converted = 0;
@@ -3895,7 +4234,7 @@ static void wdc_print_bd_ca_log_normal(void *data)
 	__u8  *byte_raw;
 
 	if (bd_data->field_id == 0x00) {
-		raw = (__u64*)bd_data->raw_value;
+		raw = (__u64*)&bd_data->raw_value[1];
 		printf("Additional Smart Log for NVME device:%s namespace-id:%x\n",
 			devicename, WDC_DE_GLOBAL_NSID);
 		printf("key                               normalized raw\n");
@@ -3906,7 +4245,7 @@ static void wdc_print_bd_ca_log_normal(void *data)
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x01) {
-		raw = (__u64*)bd_data->raw_value;
+		raw = (__u64*)&bd_data->raw_value[1];
 		printf("erase_fail_count                : %3"PRIu8"%%       %"PRIu64"\n",
 				bd_data->normalized_value, le64_to_cpu(*raw & 0x00FFFFFFFFFFFFFF));
 	} else {
@@ -3914,9 +4253,9 @@ static void wdc_print_bd_ca_log_normal(void *data)
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x02) {
-		word_raw1 = (__u16*)bd_data->raw_value;
-		word_raw2 = (__u16*)&bd_data->raw_value[2];
-		word_raw3 = (__u16*)&bd_data->raw_value[4];
+		word_raw1 = (__u16*)&bd_data->raw_value[1];
+		word_raw2 = (__u16*)&bd_data->raw_value[3];
+		word_raw3 = (__u16*)&bd_data->raw_value[5];
 		printf("wear_leveling                   : %3"PRIu8"%%       min: %"PRIu16", max: %"PRIu16", avg: %"PRIu16"\n",
 				bd_data->normalized_value,
 				le16_to_cpu(*word_raw1),
@@ -3927,7 +4266,7 @@ static void wdc_print_bd_ca_log_normal(void *data)
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x03) {
-		raw = (__u64*)bd_data->raw_value;
+		raw = (__u64*)&bd_data->raw_value[1];
 		printf("end_to_end_error_detection_count: %3"PRIu8"%%       %"PRIu64"\n",
 				bd_data->normalized_value, le64_to_cpu(*raw & 0x00FFFFFFFFFFFFFF));
 	} else {
@@ -3935,7 +4274,7 @@ static void wdc_print_bd_ca_log_normal(void *data)
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x04) {
-		raw = (__u64*)bd_data->raw_value;
+		raw = (__u64*)&bd_data->raw_value[1];
 		printf("crc_error_count                 : %3"PRIu8"%%       %"PRIu64"\n",
 			   bd_data->normalized_value, le64_to_cpu(*raw & 0x00FFFFFFFFFFFFFF));
 	} else {
@@ -3943,7 +4282,7 @@ static void wdc_print_bd_ca_log_normal(void *data)
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x05) {
-		raw = (__u64*)bd_data->raw_value;
+		raw = (__u64*)&bd_data->raw_value[1];
 		printf("timed_workload_media_wear       : %3"PRIu8"%%       %-.3f%%\n",
 			   bd_data->normalized_value, 
 			   safe_div_fp((*raw & 0x00FFFFFFFFFFFFFF), 1024.0));
@@ -3952,7 +4291,7 @@ static void wdc_print_bd_ca_log_normal(void *data)
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x06) {
-		raw = (__u64*)bd_data->raw_value;
+		raw = (__u64*)&bd_data->raw_value[1];
 		printf("timed_workload_host_reads       : %3"PRIu8"%%       %"PRIu64"%%\n",
 			   bd_data->normalized_value, le64_to_cpu(*raw & 0x00FFFFFFFFFFFFFF));
 	} else {
@@ -3960,7 +4299,7 @@ static void wdc_print_bd_ca_log_normal(void *data)
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x07) {
-		raw = (__u64*)bd_data->raw_value;
+		raw = (__u64*)&bd_data->raw_value[1];
 		printf("timed_workload_timer            : %3"PRIu8"%%       %"PRIu64"\n",
 			   bd_data->normalized_value, le64_to_cpu(*raw & 0x00FFFFFFFFFFFFFF));
 	} else {
@@ -3968,8 +4307,8 @@ static void wdc_print_bd_ca_log_normal(void *data)
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x08) {
-		byte_raw = (__u8*)bd_data->raw_value;
-		dword_raw = (__u32*)&bd_data->raw_value[1];
+		byte_raw = (__u8*)&bd_data->raw_value[1];
+		dword_raw = (__u32*)&bd_data->raw_value[2];
 		printf("thermal_throttle_status         : %3"PRIu8"%%       %"PRIu16"%%, cnt: %"PRIu16"\n",
 				bd_data->normalized_value, *byte_raw, le32_to_cpu(*dword_raw));
 	} else {
@@ -3977,7 +4316,7 @@ static void wdc_print_bd_ca_log_normal(void *data)
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x09) {
-		raw = (__u64*)bd_data->raw_value;
+		raw = (__u64*)&bd_data->raw_value[1];
 		printf("retry_buffer_overflow_count     : %3"PRIu8"%%       %"PRIu64"\n",
 			   bd_data->normalized_value, le64_to_cpu(*raw & 0x00FFFFFFFFFFFFFF));
 	} else {
@@ -3985,7 +4324,7 @@ static void wdc_print_bd_ca_log_normal(void *data)
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x0A) {
-		raw = (__u64*)bd_data->raw_value;
+		raw = (__u64*)&bd_data->raw_value[1];
 		printf("pll_lock_loss_count             : %3"PRIu8"%%       %"PRIu64"\n",
 			   bd_data->normalized_value, le64_to_cpu(*raw & 0x00FFFFFFFFFFFFFF));
 	} else {
@@ -3993,19 +4332,17 @@ static void wdc_print_bd_ca_log_normal(void *data)
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x0B) {
-		raw = (__u64*)bd_data->raw_value;
+		raw = (__u64*)&bd_data->raw_value[1];
 		printf("nand_bytes_written              : %3"PRIu8"%%       sectors: %.f\n",
 			   bd_data->normalized_value, safe_div_fp((*raw & 0x00FFFFFFFFFFFFFF), 0xFFFF));
-		raw = (__u64*)bd_data->raw_value;
 	} else {
 		goto invalid_id;
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x0C) {
-		raw = (__u64*)bd_data->raw_value;
+		raw = (__u64*)&bd_data->raw_value[1];
 		printf("host_bytes_written              : %3"PRIu8"%%       sectors: %.f\n",
 			   bd_data->normalized_value, safe_div_fp((*raw & 0x00FFFFFFFFFFFFFF), 0xFFFF));
-		raw = (__u64*)bd_data->raw_value;
 	} else {
 		goto invalid_id;
 	}
@@ -4031,71 +4368,81 @@ static void wdc_print_bd_ca_log_json(void *data)
 
 	root = json_create_object();
 	if (bd_data->field_id == 0x00) {
-		raw = (__u64*)bd_data->raw_value;
-		json_object_add_value_int(root, "program_fail_count",
-				le64_to_cpu(*raw & 0x00FFFFFFFFFFFFFF));
-		json_object_add_value_int(root, "normalized",
+		raw = (__u64*)&bd_data->raw_value[1];
+		json_object_add_value_int(root, "program_fail_count normalized",
 				bd_data->normalized_value);
+		json_object_add_value_int(root, "program_fail_count raw",
+				le64_to_cpu(*raw & 0x00FFFFFFFFFFFFFF));
 	} else {
 		goto invalid_id;
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x01) {
-		raw = (__u64*)bd_data->raw_value;
-		json_object_add_value_int(root, "erase_fail_count",
-				le64_to_cpu(*raw & 0x00FFFFFFFFFFFFFF));
-		json_object_add_value_int(root, "normalized",
+		raw = (__u64*)&bd_data->raw_value[1];
+		json_object_add_value_int(root, "erase_fail_count normalized",
 				bd_data->normalized_value);
+		json_object_add_value_int(root, "erase_fail_count raw",
+				le64_to_cpu(*raw & 0x00FFFFFFFFFFFFFF));
 	} else {
 		goto invalid_id;
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x02) {
-		word_raw = (__u16*)bd_data->raw_value;
-		json_object_add_value_int(root, "min", le16_to_cpu(*word_raw));
-		word_raw = (__u16*)&bd_data->raw_value[2];
-		json_object_add_value_int(root, "max", le16_to_cpu(*word_raw));
-		word_raw = (__u16*)&bd_data->raw_value[4];
-		json_object_add_value_int(root, "avg", le16_to_cpu(*word_raw));
-		json_object_add_value_int(root, "wear_leveling-normalized",	bd_data->normalized_value);
+		word_raw = (__u16*)&bd_data->raw_value[1];
+		json_object_add_value_int(root, "wear_leveling normalized",	bd_data->normalized_value);
+		json_object_add_value_int(root, "wear_leveling min", le16_to_cpu(*word_raw));
+		word_raw = (__u16*)&bd_data->raw_value[3];
+		json_object_add_value_int(root, "wear_leveling max", le16_to_cpu(*word_raw));
+		word_raw = (__u16*)&bd_data->raw_value[5];
+		json_object_add_value_int(root, "wear_leveling avg", le16_to_cpu(*word_raw));
 	} else {
 		goto invalid_id;
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x03) {
-		raw = (__u64*)bd_data->raw_value;
-		json_object_add_value_int(root, "end_to_end_error_detection_count",
+		raw = (__u64*)&bd_data->raw_value[1];
+		json_object_add_value_int(root, "end_to_end_error_detection_count normalized",
+				bd_data->normalized_value);
+		json_object_add_value_int(root, "end_to_end_error_detection_count raw",
 				le64_to_cpu(*raw & 0x00FFFFFFFFFFFFFF));
 	} else {
 		goto invalid_id;
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x04) {
-		raw = (__u64*)bd_data->raw_value;
-		json_object_add_value_int(root, "crc_error_count",
+		raw = (__u64*)&bd_data->raw_value[1];
+		json_object_add_value_int(root, "crc_error_count normalized",
+				bd_data->normalized_value);
+		json_object_add_value_int(root, "crc_error_count raw",
 				le64_to_cpu(*raw & 0x00FFFFFFFFFFFFFF));
 	} else {
 		goto invalid_id;
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x05) {
-		raw = (__u64*)bd_data->raw_value;
-		json_object_add_value_float(root, "timed_workload_media_wear",
+		raw = (__u64*)&bd_data->raw_value[1];
+		json_object_add_value_int(root, "timed_workload_media_wear normalized",
+				bd_data->normalized_value);
+		json_object_add_value_float(root, "timed_workload_media_wear raw",
 				safe_div_fp((*raw & 0x00FFFFFFFFFFFFFF), 1024.0));
 	} else {
 		goto invalid_id;
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x06) {
-		raw = (__u64*)bd_data->raw_value;
-		json_object_add_value_int(root, "timed_workload_host_reads",
+		raw = (__u64*)&bd_data->raw_value[1];
+		json_object_add_value_int(root, "timed_workload_host_reads normalized",
+				bd_data->normalized_value);
+		json_object_add_value_int(root, "timed_workload_host_reads raw",
 				le64_to_cpu(*raw & 0x00000000000000FF));
 	} else {
 		goto invalid_id;
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x07) {
-		raw = (__u64*)bd_data->raw_value;
+		raw = (__u64*)&bd_data->raw_value[1];
+		json_object_add_value_int(root, "timed_workload_timer normalized",
+				bd_data->normalized_value);
 		json_object_add_value_int(root, "timed_workload_timer",
 				le64_to_cpu(*raw & 0x00FFFFFFFFFFFFFF));
 	} else {
@@ -4103,54 +4450,67 @@ static void wdc_print_bd_ca_log_json(void *data)
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x08) {
-		byte_raw = (__u8*)bd_data->raw_value;
+		byte_raw = (__u8*)&bd_data->raw_value[1];
+		json_object_add_value_int(root, "thermal_throttle_status normalized",
+				bd_data->normalized_value);
 		json_object_add_value_int(root, "thermal_throttle_status", *byte_raw);
-		dword_raw = (__u32*)&bd_data->raw_value[1];
-		json_object_add_value_int(root, "cnt",	le32_to_cpu(*dword_raw));
+		dword_raw = (__u32*)&bd_data->raw_value[2];
+		json_object_add_value_int(root, "thermal_throttle_cnt",	le32_to_cpu(*dword_raw));
 	} else {
 		goto invalid_id;
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x09) {
-		raw = (__u64*)bd_data->raw_value;
-		json_object_add_value_int(root, "retry_buffer_overflow_count",
+		raw = (__u64*)&bd_data->raw_value[1];
+		json_object_add_value_int(root, "retry_buffer_overflow_count normalized",
+				bd_data->normalized_value);
+		json_object_add_value_int(root, "retry_buffer_overflow_count raw",
 				le64_to_cpu(*raw & 0x00FFFFFFFFFFFFFF));
 	} else {
 		goto invalid_id;
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x0A) {
-		raw = (__u64*)bd_data->raw_value;
-		json_object_add_value_int(root, "pll_lock_loss_count",
+		raw = (__u64*)&bd_data->raw_value[1];
+		json_object_add_value_int(root, "pll_lock_loss_count normalized",
+				bd_data->normalized_value);
+		json_object_add_value_int(root, "pll_lock_loss_count raw",
 				le64_to_cpu(*raw & 0x00FFFFFFFFFFFFFF));
 	} else {
 		goto invalid_id;
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x0B) {
-		raw = (__u64*)bd_data->raw_value;
-		json_object_add_value_float(root, "nand_bytes_written",
+		raw = (__u64*)&bd_data->raw_value[1];
+		json_object_add_value_int(root, "nand_bytes_written normalized",
+				bd_data->normalized_value);
+		json_object_add_value_float(root, "nand_bytes_written raw",
 				safe_div_fp((*raw & 0x00FFFFFFFFFFFFFF), 0xFFFF));
 	} else {
 		goto invalid_id;
 	}
 	bd_data++;
 	if (bd_data->field_id == 0x0C) {
-		raw = (__u64*)bd_data->raw_value;
-		json_object_add_value_float(root, "host_bytes_written",
+		raw = (__u64*)&bd_data->raw_value[1];
+		json_object_add_value_int(root, "host_bytes_written normalized",
+				bd_data->normalized_value);
+		json_object_add_value_float(root, "host_bytes_written raw",
 				safe_div_fp((*raw & 0x00FFFFFFFFFFFFFF), 0xFFFF));
-		raw = (__u64*)bd_data->raw_value;
 	} else {
 		goto invalid_id;
 	}
 
 	goto done;
 
-	invalid_id:
-		printf("  Invalid Field ID = %d\n", bd_data->field_id);
+ invalid_id:
+	printf("  Invalid Field ID = %d\n", bd_data->field_id);
 
-	done:
-		return;
+ done:
+	json_print_object(root, NULL);
+	printf("\n");
+	json_free_object(root);
+
+	return;
 
 }
 
@@ -4617,77 +4977,71 @@ static void wdc_print_smart_cloud_attr_C0_normal(void *data)
 
 	printf("  SMART Cloud Attributes :- \n");
 
-	printf("  Physical media units written -   	        %"PRIu64" %"PRIu64"\n",
+	printf("  Physical media units written     	      	: %"PRIu64" %"PRIu64"\n",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_PMUW+8] & 0xFFFFFFFFFFFFFFFF),
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_PMUW] & 0xFFFFFFFFFFFFFFFF));
-	printf("  Physical media units read    - 	        %"PRIu64" %"PRIu64"\n",
+	printf("  Physical media units read      	      	: %"PRIu64" %"PRIu64"\n",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_PMUR+8] & 0xFFFFFFFFFFFFFFFF),
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_PMUR] & 0xFFFFFFFFFFFFFFFF));
-	printf("  Bad user nand blocks - Raw			%"PRIu64"\n",
+	printf("  Bad user nand blocks Raw			: %"PRIu64"\n",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_BUNBR] & 0x0000FFFFFFFFFFFF));
-	printf("  Bad user nand blocks - Normalized		%d\n",
+	printf("  Bad user nand blocks Normalized		: %d\n",
 			(uint16_t)le16_to_cpu(*(uint16_t *)&log_data[SCAO_BUNBN]));
-	printf("  Bad system nand blocks - Raw			%"PRIu64"\n",
+	printf("  Bad system nand blocks Raw			: %"PRIu64"\n",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_BSNBR] & 0x0000FFFFFFFFFFFF));
-	printf("  Bad system nand blocks - Normalized		%d\n",
+	printf("  Bad system nand blocks Normalized		: %d\n",
 			(uint16_t)le16_to_cpu(*(uint16_t *)&log_data[SCAO_BSNBN]));
-	printf("  XOR recovery count				%"PRIu64"\n",
+	printf("  XOR recovery count			  	: %"PRIu64"\n",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_XRC]));
-	printf("  Uncorrectable read error count		%"PRIu64"\n",
+	printf("  Uncorrectable read error count		: %"PRIu64"\n",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_UREC]));
-	printf("  Soft ecc error count				%"PRIu64"\n",
+	printf("  Soft ecc error count				: %"PRIu64"\n",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_SEEC]));
-	printf("  End to end corrected errors			%"PRIu32"\n",
+	printf("  End to end corrected errors			: %"PRIu32"\n",
 			(uint32_t)le32_to_cpu(*(uint32_t *)&log_data[SCAO_EECE]));
-	printf("  End to end detected errors			%"PRIu32"\n",
+	printf("  End to end detected errors			: %"PRIu32"\n",
 			(uint32_t)le32_to_cpu(*(uint32_t *)&log_data[SCAO_EEDC]));
-	printf("  System data percent used			%d\n",
-			(__u8)log_data[SCAO_SDPU]);
-	printf("  Refresh counts				%"PRIu64"\n",
+	printf("  System data percent used			: %d\n", (__u8)log_data[SCAO_SDPU]);
+	printf("  Refresh counts				: %"PRIu64"\n",
 			(uint64_t)(le64_to_cpu(*(uint64_t *)&log_data[SCAO_RFSC])& 0x00FFFFFFFFFFFFFF));
-	printf("  Max User data erase counts			%"PRIu32"\n",
+	printf("  Max User data erase counts			: %"PRIu32"\n",
 			(uint32_t)le32_to_cpu(*(uint32_t *)&log_data[SCAO_MXUDEC]));
-	printf("  Min User data erase counts			%"PRIu32"\n",
+	printf("  Min User data erase counts			: %"PRIu32"\n",
 			(uint32_t)le32_to_cpu(*(uint32_t *)&log_data[SCAO_MNUDEC]));
-	printf("  Number of Thermal throttling events		%d\n",
-			(__u8)log_data[SCAO_NTTE]);
-	printf("  Current throttling status		  	0x%x\n",
-			(__u8)log_data[SCAO_CTS]);
-	printf("  PCIe correctable error count			%"PRIu64"\n",
+	printf("  Number of Thermal throttling events		: %d\n", (__u8)log_data[SCAO_NTTE]);
+	printf("  Current throttling status			: 0x%x\n", (__u8)log_data[SCAO_CTS]);
+	printf("  PCIe correctable error count			: %"PRIu64"\n",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_PCEC]));
-	printf("  Incomplete shutdowns				%"PRIu32"\n",
+	printf("  Incomplete shutdowns				: %"PRIu32"\n",
 			(uint32_t)le32_to_cpu(*(uint32_t *)&log_data[SCAO_ICS]));
-	printf("  Percent free blocks				%d\n",
-			(__u8)log_data[SCAO_PFB]);
-	printf("  Capacitor health				%"PRIu16"\n",
+	printf("  Percent free blocks				: %d\n", (__u8)log_data[SCAO_PFB]);
+	printf("  Capacitor health				: %"PRIu16"\n",
 			(uint16_t)le16_to_cpu(*(uint16_t *)&log_data[SCAO_CPH]));
-	printf("  Unaligned I/O					%"PRIu64"\n",
+	printf("  Unaligned I/O					: %"PRIu64"\n",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_UIO]));
-	printf("  Security Version Number			%"PRIu64"\n",
+	printf("  Security Version Number			: %"PRIu64"\n",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_SVN]));
-	printf("  NUSE - Namespace utilization			%"PRIu64"\n",
+	printf("  NUSE Namespace utilization			: %"PRIu64"\n",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_NUSE]));
-	printf("  PLP start count				%.0Lf\n",
-			int128_to_double(&log_data[SCAO_PSC]));
-	printf("  Endurance estimate				%.0Lf\n",
-			int128_to_double(&log_data[SCAO_EEST]));
+	printf("  PLP start count				: %.0Lf\n", int128_to_double(&log_data[SCAO_PSC]));
+	printf("  Endurance estimate				: %.0Lf\n", int128_to_double(&log_data[SCAO_EEST]));
 	smart_log_ver = (uint16_t)le16_to_cpu(*(uint16_t *)&log_data[SCAO_LPV]);
-	printf("  Log page version				 %"PRIu16"\n",smart_log_ver);
-	printf("  Log page GUID					0x");
+	printf("  Log page version				: %"PRIu16"\n",smart_log_ver);
+	printf("  Log page GUID					: 0x");
 	printf("0x%"PRIx64"%"PRIx64"\n",(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_LPG + 8]),
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_LPG]));
 	if(smart_log_ver > 2) {
-		printf("  Errata Version Field                          %d\n",
+		printf("  Errata Version Field				: %d\n",
 				(__u8)log_data[SCAO_EVF]);
-		printf("  Point Version Field                           %"PRIu16"\n",
+		printf("  Point Version Field				: %"PRIu16"\n",
 				(uint16_t)log_data[SCAO_PVF]);
-		printf("  Minor Version Field                           %"PRIu16"\n",
+		printf("  Minor Version Field				: %"PRIu16"\n",
 				(uint16_t)log_data[SCAO_MIVF]);
-		printf("  Major Version Field                           %d\n",
+		printf("  Major Version Field				: %d\n",
 				(__u8)log_data[SCAO_MAVF]);
-		printf("  NVMe Errata Version				%d\n",
+		printf("  NVMe Errata Version				: %d\n",
 				(__u8)log_data[SCAO_NEV]);
-		printf("  PCIe Link Retraining Count			%"PRIu64"\n",
+		printf("  PCIe Link Retraining Count			: %"PRIu64"\n",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_PLRC]));
 	}
 	printf("\n");
@@ -4700,27 +5054,27 @@ static void wdc_print_smart_cloud_attr_C0_json(void *data)
 	uint16_t smart_log_ver = 0;
 
 	root = json_create_object();
-	json_object_add_value_int(root, "Physical media units written hi",
+	json_object_add_value_uint64(root, "Physical media units written hi",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_PMUW+8] & 0xFFFFFFFFFFFFFFFF));
-	json_object_add_value_int(root, "Physical media units written lo",
+	json_object_add_value_uint64(root, "Physical media units written lo",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_PMUW] & 0xFFFFFFFFFFFFFFFF));
-	json_object_add_value_int(root, "Physical media units read hi",
+	json_object_add_value_uint64(root, "Physical media units read hi",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_PMUR+8] & 0xFFFFFFFFFFFFFFFF));
-	json_object_add_value_int(root, "Physical media units read lo",
+	json_object_add_value_uint64(root, "Physical media units read lo",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_PMUR] & 0xFFFFFFFFFFFFFFFF));
-	json_object_add_value_uint(root, "Bad user nand blocks - Raw",
+	json_object_add_value_uint64(root, "Bad user nand blocks - Raw",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_BUNBR] & 0x0000FFFFFFFFFFFF));
 	json_object_add_value_uint(root, "Bad user nand blocks - Normalized",
 			(uint16_t)le16_to_cpu(*(uint16_t *)&log_data[SCAO_BUNBN]));
-	json_object_add_value_uint(root, "Bad system nand blocks - Raw",
+	json_object_add_value_uint64(root, "Bad system nand blocks - Raw",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_BSNBR] & 0x0000FFFFFFFFFFFF));
 	json_object_add_value_uint(root, "Bad system nand blocks - Normalized",
 			(uint16_t)le16_to_cpu(*(uint16_t *)&log_data[SCAO_BSNBN]));
-	json_object_add_value_uint(root, "XOR recovery count",
+	json_object_add_value_uint64(root, "XOR recovery count",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_XRC]));
-	json_object_add_value_uint(root, "Uncorrectable read error count",
+	json_object_add_value_uint64(root, "Uncorrectable read error count",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_UREC]));
-	json_object_add_value_uint(root, "Soft ecc error count",
+	json_object_add_value_uint64(root, "Soft ecc error count",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_SEEC]));
 	json_object_add_value_uint(root, "End to end corrected errors",
 			(uint32_t)le32_to_cpu(*(uint32_t *)&log_data[SCAO_EECE]));
@@ -4728,7 +5082,7 @@ static void wdc_print_smart_cloud_attr_C0_json(void *data)
 			(uint32_t)le32_to_cpu(*(uint32_t *)&log_data[SCAO_EEDC]));
 	json_object_add_value_uint(root, "System data percent used",
 			(__u8)log_data[SCAO_SDPU]);
-	json_object_add_value_uint(root, "Refresh counts",
+	json_object_add_value_uint64(root, "Refresh counts",
 			(uint64_t)(le64_to_cpu(*(uint64_t *)&log_data[SCAO_RFSC])& 0x00FFFFFFFFFFFFFF));
 	json_object_add_value_uint(root, "Max User data erase counts",
 			(uint32_t)le32_to_cpu(*(uint32_t *)&log_data[SCAO_MXUDEC]));
@@ -4738,7 +5092,7 @@ static void wdc_print_smart_cloud_attr_C0_json(void *data)
 			(__u8)log_data[SCAO_NTTE]);
 	json_object_add_value_uint(root, "Current throttling status",
 			(__u8)log_data[SCAO_CTS]);
-	json_object_add_value_uint(root, "PCIe correctable error count",
+	json_object_add_value_uint64(root, "PCIe correctable error count",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_PCEC]));
 	json_object_add_value_uint(root, "Incomplete shutdowns",
 			(uint32_t)le32_to_cpu(*(uint32_t *)&log_data[SCAO_ICS]));
@@ -4746,11 +5100,11 @@ static void wdc_print_smart_cloud_attr_C0_json(void *data)
 			(__u8)log_data[SCAO_PFB]);
 	json_object_add_value_uint(root, "Capacitor health",
 			(uint16_t)le16_to_cpu(*(uint16_t *)&log_data[SCAO_CPH]));
-	json_object_add_value_uint(root, "Unaligned I/O",
+	json_object_add_value_uint64(root, "Unaligned I/O",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_UIO]));
-	json_object_add_value_uint(root, "Security Version Number",
+	json_object_add_value_uint64(root, "Security Version Number",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_SVN]));
-	json_object_add_value_uint(root, "NUSE - Namespace utilization",
+	json_object_add_value_uint64(root, "NUSE - Namespace utilization",
 			(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_NUSE]));
 	json_object_add_value_uint(root, "PLP start count",
 			int128_to_double(&log_data[SCAO_PSC]));
@@ -4774,7 +5128,7 @@ static void wdc_print_smart_cloud_attr_C0_json(void *data)
 				(__u8)log_data[SCAO_MAVF]);
 		json_object_add_value_uint(root, "NVMe Errata Version",
 				(__u8)log_data[SCAO_NEV]);
-		json_object_add_value_uint(root, "PCIe Link Retraining Count",
+		json_object_add_value_uint64(root, "PCIe Link Retraining Count",
 				(uint64_t)le64_to_cpu(*(uint64_t *)&log_data[SCAO_PLRC]));
 	}
 	json_print_object(root, NULL);
@@ -4867,16 +5221,17 @@ static int wdc_print_c0_eol_log(void *data, int fmt)
 	return 0;
 }
 
-static int wdc_get_c0_log_page(int fd, char *format, int uuid_index, __u32 namespace_id)
+static int wdc_get_c0_log_page(nvme_root_t r, int fd, char *format,
+			int uuid_index, __u32 namespace_id)
 {
 	int ret = 0;
 	int fmt = -1;
 	int i = 0;
 	__u8 *data;
-	__u32 *cust_id;
+	__u32 cust_id;
 	uint32_t device_id, read_vendor_id;
 
-	if (!wdc_check_device(fd))
+	if (!wdc_check_device(r, fd))
 		return -1;
 	fmt = validate_output_format(format);
 	if (fmt < 0) {
@@ -4884,7 +5239,7 @@ static int wdc_get_c0_log_page(int fd, char *format, int uuid_index, __u32 names
 		return fmt;
 	}
 
-	ret = wdc_get_pci_ids(&device_id, &read_vendor_id);
+	ret = wdc_get_pci_ids(r, &device_id, &read_vendor_id);
 
 	switch (device_id) {
 
@@ -4894,15 +5249,19 @@ static int wdc_get_c0_log_page(int fd, char *format, int uuid_index, __u32 names
 	case WDC_NVME_SN640_DEV_ID_3:
 	case WDC_NVME_SN840_DEV_ID:
 	case WDC_NVME_SN840_DEV_ID_1:
-		if (!get_dev_mgment_cbs_data(fd, WDC_C2_CUSTOMER_ID_ID, (void*)&data)) {
-			fprintf(stderr, "%s: ERROR : WDC : 0xC2 Log Page entry ID 0x%x not found\n", __func__, WDC_C2_CUSTOMER_ID_ID);
+	case WDC_NVME_SN650_DEV_ID:
+	case WDC_NVME_SN650_DEV_ID_1:
+	case WDC_NVME_SN650_DEV_ID_2:
+	case WDC_NVME_SN650_DEV_ID_3:
+	case WDC_NVME_SN650_DEV_ID_4:
+	case WDC_NVME_SN655_DEV_ID:
+		cust_id = wdc_get_fw_cust_id(r, fd);
+		if (cust_id == WDC_INVALID_CUSTOMER_ID) {
+			fprintf(stderr, "%s: ERROR : WDC : invalid customer id\n", __func__);
 			return -1;
 		}
 
-		cust_id = (__u32*)data;
-
-		if ((*cust_id == WDC_CUSTOMER_ID_0x1004) || (*cust_id == WDC_CUSTOMER_ID_0x1008) ||
-				(*cust_id == WDC_CUSTOMER_ID_0x1005) || (*cust_id == WDC_CUSTOMER_ID_0x1304))
+		if ((cust_id == WDC_CUSTOMER_ID_0x1004) || (cust_id == WDC_CUSTOMER_ID_0x1008) || (cust_id == WDC_CUSTOMER_ID_0x1005))
 		{
 			if (uuid_index == 0)
 			{
@@ -4912,18 +5271,34 @@ static int wdc_get_c0_log_page(int fd, char *format, int uuid_index, __u32 names
 				}
 
 				if (namespace_id == NVME_NSID_ALL) {
-					ret = namespace_id = nvme_get_nsid(fd);
+					ret = nvme_get_nsid(fd, &namespace_id);
 					if (ret < 0) {
 						namespace_id = NVME_NSID_ALL;
 					}
 				}
 
 				/* Get the 0xC0 log data */
-				ret = nvme_get_log14(fd, namespace_id, WDC_NVME_GET_EOL_STATUS_LOG_OPCODE,
-						NVME_NO_LOG_LSP, 0, 0, false, uuid_index, 0, false, WDC_NVME_SMART_CLOUD_ATTR_LEN, data);
+				struct nvme_get_log_args args = {
+					.args_size	= sizeof(args),
+					.fd		= fd,
+					.lid		= WDC_NVME_GET_EOL_STATUS_LOG_OPCODE,
+					.nsid		= namespace_id,
+					.lpo		= 0,
+					.lsp		= NVME_LOG_LSP_NONE,
+					.lsi		= 0,
+					.rae		= false,
+					.uuidx		= uuid_index,
+					.csi		= NVME_CSI_NVM,
+					.ot		= false,
+					.len		= WDC_NVME_SMART_CLOUD_ATTR_LEN,
+					.log		= data,
+					.timeout	= NVME_DEFAULT_IOCTL_TIMEOUT,
+					.result		= NULL,
+				};
+				ret = nvme_get_log(&args);
 
 				if (strcmp(format, "json"))
-					fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+					nvme_show_status(ret);
 
 				if (ret == 0) {
 
@@ -4966,11 +5341,27 @@ static int wdc_get_c0_log_page(int fd, char *format, int uuid_index, __u32 names
 				}
 
 				/* Get the 0xC0 log data */
-				ret = nvme_get_log14(fd, NVME_NSID_ALL, WDC_NVME_GET_EOL_STATUS_LOG_OPCODE,
-						NVME_NO_LOG_LSP, 0, 0, false, uuid_index, 0, false, WDC_NVME_EOL_STATUS_LOG_LEN, data);
+				struct nvme_get_log_args args = {
+					.args_size	= sizeof(args),
+					.fd		= fd,
+					.lid		= WDC_NVME_GET_EOL_STATUS_LOG_OPCODE,
+					.nsid		= NVME_NSID_ALL,
+					.lpo		= 0,
+					.lsp		= NVME_LOG_LSP_NONE,
+					.lsi		= 0,
+					.rae		= false,
+					.uuidx		= uuid_index,
+					.csi		= NVME_CSI_NVM,
+					.ot		= false,
+					.len		= WDC_NVME_EOL_STATUS_LOG_LEN,
+					.log		= data,
+					.timeout	= NVME_DEFAULT_IOCTL_TIMEOUT,
+					.result		= NULL,
+				};
+				ret = nvme_get_log(&args);
 
 				if (strcmp(format, "json"))
-					fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+					nvme_show_status(ret);
 
 				if (ret == 0) {
 					/* parse the data */
@@ -4993,11 +5384,11 @@ static int wdc_get_c0_log_page(int fd, char *format, int uuid_index, __u32 names
 			}
 
 			/* Get the 0xC0 log data */
-			ret = nvme_get_log(fd, NVME_NSID_ALL, WDC_NVME_GET_EOL_STATUS_LOG_OPCODE,
-					   false, NVME_NO_LOG_LSP, WDC_NVME_EOL_STATUS_LOG_LEN, data);
+			ret = nvme_get_log_simple(fd, WDC_NVME_GET_EOL_STATUS_LOG_OPCODE,
+					   WDC_NVME_EOL_STATUS_LOG_LEN, data);
 
 			if (strcmp(format, "json"))
-				fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+				nvme_show_status(ret);
 
 			if (ret == 0) {
 				/* parse the data */
@@ -5019,11 +5410,11 @@ static int wdc_get_c0_log_page(int fd, char *format, int uuid_index, __u32 names
 		}
 
 		/* Get the 0xC0 log data */
-		ret = nvme_get_log(fd, NVME_NSID_ALL, WDC_NVME_GET_SMART_CLOUD_ATTR_LOG_OPCODE,
-					false, NVME_NO_LOG_LSP, WDC_NVME_SMART_CLOUD_ATTR_LEN, data);
+		ret = nvme_get_log_simple(fd, WDC_NVME_GET_SMART_CLOUD_ATTR_LOG_OPCODE,
+					WDC_NVME_SMART_CLOUD_ATTR_LEN, data);
 
 		if (strcmp(format, "json"))
-			fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+			nvme_show_status(ret);
 
 		if (ret == 0) {
 			/* parse the data */
@@ -5064,6 +5455,57 @@ static int wdc_print_latency_monitor_log(int fd, struct wdc_ssd_latency_monitor_
 	return 0;
 }
 
+static int wdc_print_error_rec_log(int fd, struct wdc_ocp_c1_error_recovery_log *log_data, int fmt)
+{
+	if (!log_data) {
+		fprintf(stderr, "ERROR : WDC : Invalid C1 log data buffer\n");
+		return -1;
+	}
+	switch (fmt) {
+	case NORMAL:
+		wdc_print_error_rec_log_normal(fd, log_data);
+		break;
+	case JSON:
+		wdc_print_error_rec_log_json(log_data);
+		break;
+	}
+	return 0;
+}
+
+static int wdc_print_dev_cap_log(int fd, struct wdc_ocp_C4_dev_cap_log *log_data, int fmt)
+{
+	if (!log_data) {
+		fprintf(stderr, "ERROR : WDC : Invalid C4 log data buffer\n");
+		return -1;
+	}
+	switch (fmt) {
+	case NORMAL:
+		wdc_print_dev_cap_log_normal(fd, log_data);
+		break;
+	case JSON:
+		wdc_print_dev_cap_log_json(log_data);
+		break;
+	}
+	return 0;
+}
+
+static int wdc_print_unsupported_reqs_log(int fd, struct wdc_ocp_C5_unsupported_reqs *log_data, int fmt)
+{
+	if (!log_data) {
+		fprintf(stderr, "ERROR : WDC : Invalid C5 log data buffer\n");
+		return -1;
+	}
+	switch (fmt) {
+	case NORMAL:
+		wdc_print_unsupported_reqs_log_normal(fd, log_data);
+		break;
+	case JSON:
+		wdc_print_unsupported_reqs_log_json(log_data);
+		break;
+	}
+	return 0;
+}
+
 static int wdc_print_fb_ca_log(struct wdc_ssd_ca_perf_stats *perf, int fmt)
 {
 	if (!perf) {
@@ -5094,6 +5536,9 @@ static int wdc_print_bd_ca_log(void *bd_data, int fmt)
 	case JSON:
 		wdc_print_bd_ca_log_json(bd_data);
 		break;
+	default:
+		fprintf(stderr, "ERROR : WDC : Unknown format - %d\n", fmt);
+		return -1;
 	}
 	return 0;
 }
@@ -5133,16 +5578,16 @@ static int wdc_print_fw_act_history_log(__u8 *data, int num_entries, int fmt, __
 	return 0;
 }
 
-static int wdc_get_ca_log_page(int fd, char *format)
+static int wdc_get_ca_log_page(nvme_root_t r, int fd, char *format)
 {
 	int ret = 0;
 	int fmt = -1;
 	__u8 *data;
-	__u32 *cust_id;
 	struct wdc_ssd_ca_perf_stats *perf;
 	uint32_t read_device_id, read_vendor_id;
+	__u32 cust_id;
 
-	if (!wdc_check_device(fd))
+	if (!wdc_check_device(r, fd))
 		return -1;
 	fmt = validate_output_format(format);
 	if (fmt < 0) {
@@ -5151,25 +5596,25 @@ static int wdc_get_ca_log_page(int fd, char *format)
 	}
 
 	/* verify the 0xCA log page is supported */
-	if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE) == false) {
+	if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE) == false) {
 		fprintf(stderr, "ERROR : WDC : 0xCA Log Page not supported\n");
 		return -1;
 	}
 
-	if (!get_dev_mgment_cbs_data(fd, WDC_C2_CUSTOMER_ID_ID, (void*)&data)) {
-		fprintf(stderr, "%s: ERROR : WDC : 0xC2 Log Page entry ID 0x%x not found\n", __func__, WDC_C2_CUSTOMER_ID_ID);
+	/* get the FW customer id */
+	cust_id = wdc_get_fw_cust_id(r, fd);
+	if (cust_id == WDC_INVALID_CUSTOMER_ID) {
+		fprintf(stderr, "%s: ERROR : WDC : invalid customer id\n", __func__);
 		return -1;
 	}
 
-	ret = wdc_get_pci_ids(&read_device_id, &read_vendor_id);
-
-	cust_id = (__u32*)data;
+	ret = wdc_get_pci_ids(r, &read_device_id, &read_vendor_id);
 
 	switch (read_device_id) {
 
 	case WDC_NVME_SN200_DEV_ID:
 
-		if (*cust_id == WDC_CUSTOMER_ID_0x1005) {
+		if (cust_id == WDC_CUSTOMER_ID_0x1005) {
 
 			if ((data = (__u8*) malloc(sizeof (__u8) * WDC_FB_CA_LOG_BUF_LEN)) == NULL) {
 				fprintf(stderr, "ERROR : WDC : malloc : %s\n", strerror(errno));
@@ -5178,10 +5623,10 @@ static int wdc_get_ca_log_page(int fd, char *format)
 
 			memset(data, 0, sizeof (__u8) * WDC_FB_CA_LOG_BUF_LEN);
 
-			ret = nvme_get_log(fd, 0xFFFFFFFF, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE,
-					   false, NVME_NO_LOG_LSP, WDC_FB_CA_LOG_BUF_LEN, data);
+			ret = nvme_get_log_simple(fd, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE,
+					   WDC_FB_CA_LOG_BUF_LEN, data);
 			if (strcmp(format, "json"))
-				fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+				nvme_show_status(ret);
 
 			if (ret == 0) {
 				/* parse the data */
@@ -5193,7 +5638,7 @@ static int wdc_get_ca_log_page(int fd, char *format)
 			}
 		} else {
 
-			fprintf(stderr, "ERROR : WDC : Unsupported Customer id, id = 0x%x\n", *cust_id);
+			fprintf(stderr, "ERROR : WDC : Unsupported Customer id, id = 0x%x\n", cust_id);
 			return -1;
 		}
 		break;
@@ -5205,7 +5650,7 @@ static int wdc_get_ca_log_page(int fd, char *format)
 	case WDC_NVME_SN840_DEV_ID:
 	case WDC_NVME_SN840_DEV_ID_1:
 
-		if (*cust_id == WDC_CUSTOMER_ID_0x1005) {
+		if (cust_id == WDC_CUSTOMER_ID_0x1005) {
 
 			if ((data = (__u8*) malloc(sizeof (__u8) * WDC_FB_CA_LOG_BUF_LEN)) == NULL) {
 				fprintf(stderr, "ERROR : WDC : malloc : %s\n", strerror(errno));
@@ -5214,10 +5659,10 @@ static int wdc_get_ca_log_page(int fd, char *format)
 
 			memset(data, 0, sizeof (__u8) * WDC_FB_CA_LOG_BUF_LEN);
 
-			ret = nvme_get_log(fd, 0xFFFFFFFF, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE,
-					   false, NVME_NO_LOG_LSP, WDC_FB_CA_LOG_BUF_LEN, data);
+			ret = nvme_get_log_simple(fd, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE,
+					   WDC_FB_CA_LOG_BUF_LEN, data);
 			if (strcmp(format, "json"))
-				fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+				nvme_show_status(ret);
 
 			if (ret == 0) {
 				/* parse the data */
@@ -5227,19 +5672,18 @@ static int wdc_get_ca_log_page(int fd, char *format)
 				fprintf(stderr, "ERROR : WDC : Unable to read CA Log Page data\n");
 				ret = -1;
 			}
-		} else if ((*cust_id == WDC_CUSTOMER_ID_GN) || (*cust_id == WDC_CUSTOMER_ID_GD) ||
-				(*cust_id == WDC_CUSTOMER_ID_BD)) {
-
+		} else if ((cust_id == WDC_CUSTOMER_ID_GN) || (cust_id == WDC_CUSTOMER_ID_GD) ||
+				(cust_id == WDC_CUSTOMER_ID_BD)) {
 			if ((data = (__u8*) malloc(sizeof (__u8) * WDC_BD_CA_LOG_BUF_LEN)) == NULL) {
 				fprintf(stderr, "ERROR : WDC : malloc : %s\n", strerror(errno));
 				return -1;
 			}
 
 			memset(data, 0, sizeof (__u8) * WDC_BD_CA_LOG_BUF_LEN);
-			ret = nvme_get_log(fd, 0xFFFFFFFF, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE,
-					   false, NVME_NO_LOG_LSP, WDC_BD_CA_LOG_BUF_LEN, data);
+			ret = nvme_get_log_simple(fd, WDC_NVME_GET_DEVICE_INFO_LOG_OPCODE,
+					   WDC_BD_CA_LOG_BUF_LEN, data);
 			if (strcmp(format, "json"))
-				fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+				nvme_show_status(ret);
 
 			if (ret == 0) {
 				/* parse the data */
@@ -5252,7 +5696,7 @@ static int wdc_get_ca_log_page(int fd, char *format)
 			break;
 		} else {
 
-			fprintf(stderr, "ERROR : WDC : Unsupported Customer id, id = 0x%x\n", *cust_id);
+			fprintf(stderr, "ERROR : WDC : Unsupported Customer id, id = 0x%x\n", cust_id);
 			return -1;
 		}
 		break;
@@ -5268,7 +5712,8 @@ static int wdc_get_ca_log_page(int fd, char *format)
 	return ret;
 }
 
-static int wdc_get_c1_log_page(int fd, char *format, uint8_t interval)
+static int wdc_get_c1_log_page(nvme_root_t r, int fd,
+			       char *format, uint8_t interval)
 {
 	int ret = 0;
 	int fmt = -1;
@@ -5281,7 +5726,7 @@ static int wdc_get_c1_log_page(int fd, char *format, uint8_t interval)
 	struct wdc_log_page_subpage_header *sph;
 	struct wdc_ssd_perf_stats *perf;
 
-	if (!wdc_check_device(fd))
+	if (!wdc_check_device(r, fd))
 		return -1;
 	fmt = validate_output_format(format);
 	if (fmt < 0) {
@@ -5300,10 +5745,10 @@ static int wdc_get_c1_log_page(int fd, char *format, uint8_t interval)
 	}
 	memset(data, 0, sizeof (__u8) * WDC_ADD_LOG_BUF_LEN);
 
-	ret = nvme_get_log(fd, 0x01, WDC_NVME_ADD_LOG_OPCODE, false,
-			   NVME_NO_LOG_LSP, WDC_ADD_LOG_BUF_LEN, data);
+	ret = nvme_get_log_simple(fd, WDC_NVME_ADD_LOG_OPCODE,
+			   WDC_ADD_LOG_BUF_LEN, data);
 	if (strcmp(format, "json"))
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 	if (ret == 0) {
 		l = (struct wdc_log_page_header*)data;
 		total_subpages = l->num_subpages + WDC_NVME_GET_STAT_PERF_INTERVAL_LIFETIME - 1;
@@ -5326,7 +5771,7 @@ static int wdc_get_c1_log_page(int fd, char *format, uint8_t interval)
 	return ret;
 }
 
-static int wdc_get_c3_log_page(int fd, char *format)
+static int wdc_get_c3_log_page(nvme_root_t r, int fd, char *format)
 {
 	int ret = 0;
 	int fmt = -1;
@@ -5334,7 +5779,7 @@ static int wdc_get_c3_log_page(int fd, char *format)
 	int i;
 	struct wdc_ssd_latency_monitor_log *log_data;
 
-	if (!wdc_check_device(fd))
+	if (!wdc_check_device(r, fd))
 		return -1;
 	fmt = validate_output_format(format);
 	if (fmt < 0) {
@@ -5348,12 +5793,11 @@ static int wdc_get_c3_log_page(int fd, char *format)
 	}
 	memset(data, 0, sizeof (__u8) * WDC_LATENCY_MON_LOG_BUF_LEN);
 
-	ret = nvme_get_log14(fd, NVME_NSID_ALL, WDC_LATENCY_MON_OPCODE,
-			   NVME_NO_LOG_LSP, NVME_NO_LOG_LPO, 0, 0,
-			   0, 0, 0, WDC_LATENCY_MON_LOG_BUF_LEN, data);
+	ret = nvme_get_log_simple(fd, WDC_LATENCY_MON_OPCODE,
+				  WDC_LATENCY_MON_LOG_BUF_LEN, data);
 
 	if (strcmp(format, "json"))
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret, false), ret);
 
 	if (ret == 0) {
 		log_data = (struct wdc_ssd_latency_monitor_log*)data;
@@ -5386,7 +5830,7 @@ static int wdc_get_c3_log_page(int fd, char *format)
 			}
 		}
 
-    	/* parse the data */
+		/* parse the data */
 		wdc_print_latency_monitor_log(fd, log_data, fmt);
 	} else {
 		fprintf(stderr, "ERROR : WDC : Unable to read C3 data from buffer\n");
@@ -5395,16 +5839,224 @@ static int wdc_get_c3_log_page(int fd, char *format)
 out:
 	free(data);
 	return ret;
+
 }
 
-static int wdc_get_d0_log_page(int fd, char *format)
+static int wdc_get_ocp_c1_log_page(nvme_root_t r, int fd, char *format)
+{
+	int ret = 0;
+	int fmt = -1;
+	__u8 *data;
+	int i;
+	struct wdc_ocp_c1_error_recovery_log *log_data;
+
+	if (!wdc_check_device(r, fd))
+		return -1;
+	fmt = validate_output_format(format);
+	if (fmt < 0) {
+		fprintf(stderr, "ERROR : WDC : invalid output format\n");
+		return fmt;
+	}
+
+	if ((data = (__u8 *) malloc(sizeof(__u8) * WDC_ERROR_REC_LOG_BUF_LEN)) == NULL) {
+		fprintf(stderr, "ERROR : WDC : malloc : %s\n", strerror(errno));
+		return -1;
+	}
+	memset(data, 0, sizeof (__u8) * WDC_ERROR_REC_LOG_BUF_LEN);
+
+	ret = nvme_get_log_simple(fd, WDC_ERROR_REC_LOG_ID,
+			WDC_ERROR_REC_LOG_BUF_LEN, data);
+
+	if (strcmp(format, "json"))
+		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret, false), ret);
+
+	if (ret == 0) {
+		log_data = (struct wdc_ocp_c1_error_recovery_log *)data;
+
+		/* check log page version */
+		if (log_data->log_page_version != WDC_ERROR_REC_LOG_VERSION) {
+			fprintf(stderr, "ERROR : WDC : invalid error recovery log version - %d\n", log_data->log_page_version);
+			ret = -1;
+			goto out;
+		}
+
+		/* Verify GUID matches */
+		for (i=0; i < WDC_OCP_C1_GUID_LENGTH; i++) {
+			if (wdc_ocp_c1_guid[i] != log_data->log_page_guid[i])	{
+				fprintf(stderr, "ERROR : WDC : Unknown GUID in C1 Log Page data\n");
+				int j;
+				fprintf(stderr, "ERROR : WDC : Expected GUID:  0x");
+				for (j = 0; j<16; j++) {
+					fprintf(stderr, "%x", wdc_ocp_c1_guid[j]);
+				}
+				fprintf(stderr, "\nERROR : WDC : Actual GUID:    0x");
+				for (j = 0; j<16; j++) {
+					fprintf(stderr, "%x", log_data->log_page_guid[j]);
+				}
+				fprintf(stderr, "\n");
+
+				ret = -1;
+				goto out;
+			}
+		}
+
+		/* parse the data */
+		wdc_print_error_rec_log(fd, log_data, fmt);
+	} else {
+		fprintf(stderr, "ERROR : WDC : Unable to read error recovery (C1) data from buffer\n");
+	}
+
+out:
+	free(data);
+	return ret;
+}
+
+static int wdc_get_ocp_c4_log_page(nvme_root_t r, int fd, char *format)
+{
+	int ret = 0;
+	int fmt = -1;
+	__u8 *data;
+	int i;
+	struct wdc_ocp_C4_dev_cap_log *log_data;
+
+	if (!wdc_check_device(r, fd))
+		return -1;
+	fmt = validate_output_format(format);
+	if (fmt < 0) {
+		fprintf(stderr, "ERROR : WDC : invalid output format\n");
+		return fmt;
+	}
+
+	if ((data = (__u8 *) malloc(sizeof(__u8) * WDC_DEV_CAP_LOG_BUF_LEN)) == NULL) {
+		fprintf(stderr, "ERROR : WDC : malloc : %s\n", strerror(errno));
+		return -1;
+	}
+	memset(data, 0, sizeof (__u8) * WDC_DEV_CAP_LOG_BUF_LEN);
+
+	ret = nvme_get_log_simple(fd, WDC_DEV_CAP_LOG_ID,
+		WDC_DEV_CAP_LOG_BUF_LEN, data);
+
+	if (strcmp(format, "json"))
+		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret, false), ret);
+
+	if (ret == 0) {
+		log_data = (struct wdc_ocp_C4_dev_cap_log *)data;
+
+		/* check log page version */
+		if (log_data->log_page_version != WDC_DEV_CAP_LOG_VERSION) {
+			fprintf(stderr, "ERROR : WDC : invalid device capabilities log version - %d\n", log_data->log_page_version);
+			ret = -1;
+			goto out;
+		}
+
+		/* Verify GUID matches */
+		for (i=0; i < WDC_OCP_C4_GUID_LENGTH; i++) {
+			if (wdc_ocp_c4_guid[i] != log_data->log_page_guid[i])	{
+				fprintf(stderr, "ERROR : WDC : Unknown GUID in C4 Log Page data\n");
+				int j;
+				fprintf(stderr, "ERROR : WDC : Expected GUID:  0x");
+				for (j = 0; j<16; j++) {
+					fprintf(stderr, "%x", wdc_ocp_c1_guid[j]);
+				}
+				fprintf(stderr, "\nERROR : WDC : Actual GUID:    0x");
+				for (j = 0; j<16; j++) {
+					fprintf(stderr, "%x", log_data->log_page_guid[j]);
+				}
+				fprintf(stderr, "\n");
+
+				ret = -1;
+				goto out;
+			}
+		}
+
+		/* parse the data */
+		wdc_print_dev_cap_log(fd, log_data, fmt);
+	} else {
+		fprintf(stderr, "ERROR : WDC : Unable to read device capabilities (C4) data from buffer\n");
+	}
+
+out:
+	free(data);
+	return ret;
+}
+
+static int wdc_get_ocp_c5_log_page(nvme_root_t r, int fd, char *format)
+{
+	int ret = 0;
+	int fmt = -1;
+	__u8 *data;
+	int i;
+	struct wdc_ocp_C5_unsupported_reqs *log_data;
+
+	if (!wdc_check_device(r, fd))
+		return -1;
+	fmt = validate_output_format(format);
+	if (fmt < 0) {
+		fprintf(stderr, "ERROR : WDC : invalid output format\n");
+		return fmt;
+	}
+
+	if ((data = (__u8 *) malloc(sizeof(__u8) * WDC_UNSUPPORTED_REQS_LOG_BUF_LEN)) == NULL) {
+		fprintf(stderr, "ERROR : WDC : malloc : %s\n", strerror(errno));
+		return -1;
+	}
+	memset(data, 0, sizeof (__u8) * WDC_UNSUPPORTED_REQS_LOG_BUF_LEN);
+
+	ret = nvme_get_log_simple(fd, WDC_UNSUPPORTED_REQS_LOG_ID,
+		WDC_UNSUPPORTED_REQS_LOG_BUF_LEN, data);
+
+	if (strcmp(format, "json"))
+		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret, false), ret);
+
+	if (ret == 0) {
+		log_data = (struct wdc_ocp_C5_unsupported_reqs *)data;
+
+		/* check log page version */
+		if (log_data->log_page_version != WDC_UNSUPPORTED_REQS_LOG_VERSION) {
+			fprintf(stderr, "ERROR : WDC : invalid unsupported requirements log version - %d\n", log_data->log_page_version);
+			ret = -1;
+			goto out;
+		}
+
+		/* Verify GUID matches */
+		for (i=0; i < WDC_OCP_C5_GUID_LENGTH; i++) {
+			if (wdc_ocp_c5_guid[i] != log_data->log_page_guid[i])	{
+				fprintf(stderr, "ERROR : WDC : Unknown GUID in C5 Log Page data\n");
+				int j;
+				fprintf(stderr, "ERROR : WDC : Expected GUID:  0x");
+				for (j = 0; j<16; j++) {
+					fprintf(stderr, "%x", wdc_ocp_c1_guid[j]);
+				}
+				fprintf(stderr, "\nERROR : WDC : Actual GUID:    0x");
+				for (j = 0; j<16; j++) {
+					fprintf(stderr, "%x", log_data->log_page_guid[j]);
+				}
+				fprintf(stderr, "\n");
+
+				ret = -1;
+				goto out;
+			}
+		}
+
+		/* parse the data */
+		wdc_print_unsupported_reqs_log(fd, log_data, fmt);
+	} else {
+		fprintf(stderr, "ERROR : WDC : Unable to read unsupported requirements (C5) data from buffer\n");
+	}
+
+out:
+	free(data);
+	return ret;
+}
+
+static int wdc_get_d0_log_page(nvme_root_t r, int fd, char *format)
 {
 	int ret = 0;
 	int fmt = -1;
 	__u8 *data;
 	struct wdc_ssd_d0_smart_log *perf;
 
-	if (!wdc_check_device(fd))
+	if (!wdc_check_device(r, fd))
 		return -1;
 	fmt = validate_output_format(format);
 	if (fmt < 0) {
@@ -5413,7 +6065,7 @@ static int wdc_get_d0_log_page(int fd, char *format)
 	}
 
 	/* verify the 0xD0 log page is supported */
-	if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_VU_SMART_LOG_OPCODE) == false) {
+	if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_VU_SMART_LOG_OPCODE) == false) {
 		fprintf(stderr, "ERROR : WDC : 0xD0 Log Page not supported\n");
 		return -1;
 	}
@@ -5424,10 +6076,10 @@ static int wdc_get_d0_log_page(int fd, char *format)
 	}
 	memset(data, 0, sizeof (__u8) * WDC_NVME_VU_SMART_LOG_LEN);
 
-	ret = nvme_get_log(fd, 0xFFFFFFFF, WDC_NVME_GET_VU_SMART_LOG_OPCODE,
-			   false, NVME_NO_LOG_LSP, WDC_NVME_VU_SMART_LOG_LEN, data);
+	ret = nvme_get_log_simple(fd, WDC_NVME_GET_VU_SMART_LOG_OPCODE,
+			   WDC_NVME_VU_SMART_LOG_LEN, data);
 	if (strcmp(format, "json"))
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 
 	if (ret == 0) {
 		/* parse the data */
@@ -5451,6 +6103,7 @@ static int wdc_vs_smart_add_log(int argc, char **argv, struct command *command,
 	const char *log_page_version = "Log Page Version: 0 = vendor, 1 = WDC";
 	const char *log_page_mask = "Log Page Mask, comma separated list: 0xC0, 0xC1, 0xCA, 0xD0";
 	const char *namespace_id = "desired namespace id";
+	nvme_root_t r;
 	int ret = 0;
 	int uuid_index = 0;
 	int page_mask = 0, num, i;
@@ -5486,6 +6139,7 @@ static int wdc_vs_smart_add_log(int argc, char **argv, struct command *command,
 	if (fd < 0)
 		return fd;
 
+	r = nvme_scan(NULL);
 	if (cfg.log_page_version == 0) {
 		uuid_index = 0;
 	} else if (cfg.log_page_version == 1) {
@@ -5530,7 +6184,7 @@ static int wdc_vs_smart_add_log(int argc, char **argv, struct command *command,
 		fprintf(stderr, "ERROR : WDC: Unknown log page mask - %s\n", cfg.log_page_mask);
 
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 
 	if ((capabilities & WDC_DRIVE_CAP_SMART_LOG_MASK) == 0) {
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
@@ -5541,34 +6195,34 @@ static int wdc_vs_smart_add_log(int argc, char **argv, struct command *command,
 	if (((capabilities & WDC_DRIVE_CAP_C0_LOG_PAGE) == WDC_DRIVE_CAP_C0_LOG_PAGE) &&
 		(page_mask & WDC_C0_PAGE_MASK))	{
 		/* Get 0xC0 log page if possible. */
-		ret = wdc_get_c0_log_page(fd, cfg.output_format, uuid_index, cfg.namespace_id);
+		ret = wdc_get_c0_log_page(r, fd, cfg.output_format, uuid_index, cfg.namespace_id);
 		if (ret)
 			fprintf(stderr, "ERROR : WDC : Failure reading the C0 Log Page, ret = %d\n", ret);
 	}
 	if (((capabilities & (WDC_DRIVE_CAP_CA_LOG_PAGE)) == (WDC_DRIVE_CAP_CA_LOG_PAGE))  &&
 		(page_mask & WDC_CA_PAGE_MASK)) {
 		/* Get the CA Log Page */
-		ret = wdc_get_ca_log_page(fd, cfg.output_format);
+		ret = wdc_get_ca_log_page(r, fd, cfg.output_format);
 		if (ret)
 			fprintf(stderr, "ERROR : WDC : Failure reading the CA Log Page, ret = %d\n", ret);
 	}
 	if (((capabilities & WDC_DRIVE_CAP_C1_LOG_PAGE) == WDC_DRIVE_CAP_C1_LOG_PAGE) &&
 		(page_mask & WDC_C1_PAGE_MASK)) {
 		/* Get the C1 Log Page */
-		ret = wdc_get_c1_log_page(fd, cfg.output_format, cfg.interval);
+		ret = wdc_get_c1_log_page(r, fd, cfg.output_format, cfg.interval);
 		if (ret)
 			fprintf(stderr, "ERROR : WDC : Failure reading the C1 Log Page, ret = %d\n", ret);
 	}
 	if (((capabilities & WDC_DRIVE_CAP_D0_LOG_PAGE) == WDC_DRIVE_CAP_D0_LOG_PAGE) &&
 		(page_mask & WDC_D0_PAGE_MASK)) {
 		/* Get the D0 Log Page */
-		ret = wdc_get_d0_log_page(fd, cfg.output_format);
+		ret = wdc_get_d0_log_page(r, fd, cfg.output_format);
 		if (ret)
 			fprintf(stderr, "ERROR : WDC : Failure reading the D0 Log Page, ret = %d\n", ret);
 	}
 
 out:
-
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -5576,6 +6230,7 @@ static int wdc_get_latency_monitor_log(int argc, char **argv, struct command *co
 		struct plugin *plugin)
 {
 	const char *desc = "Retrieve latency monitor log data.";
+	nvme_root_t r;
 	int fd;
 	int ret = 0;
 	__u64 capabilities = 0;
@@ -5597,7 +6252,8 @@ static int wdc_get_latency_monitor_log(int argc, char **argv, struct command *co
 	if (fd < 0)
 		return fd;
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	r = nvme_scan(NULL);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 
 	if ((capabilities & WDC_DRIVE_CAP_C3_LOG_PAGE) == 0) {
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
@@ -5605,12 +6261,140 @@ static int wdc_get_latency_monitor_log(int argc, char **argv, struct command *co
 		goto out;
 	}
 
-	ret = wdc_get_c3_log_page(fd, cfg.output_format);
+	ret = wdc_get_c3_log_page(r, fd, cfg.output_format);
+	if (ret)
+		fprintf(stderr, "ERROR : WDC : Failure reading the Latency Monitor (C3) Log Page, ret = %d\n", ret);
+
+out:
+	return ret;
+}
+
+static int wdc_get_error_recovery_log(int argc, char **argv, struct command *command,
+		struct plugin *plugin)
+{
+	const char *desc = "Retrieve error recovery log data.";
+	nvme_root_t r;
+	int fd;
+	int ret = 0;
+	__u64 capabilities = 0;
+
+	struct config {
+		char *output_format;
+	};
+
+	struct config cfg = {
+		.output_format = "normal",
+	};
+
+	OPT_ARGS(opts) = {
+		OPT_FMT("output-format",      'o', &cfg.output_format,    "Output Format: normal|json"),
+		OPT_END()
+	};
+
+	fd = parse_and_open(argc, argv, desc, opts);
+	if (fd < 0)
+		return fd;
+
+	r = nvme_scan(NULL);
+	capabilities = wdc_get_drive_capabilities(r, fd);
+
+	if ((capabilities & WDC_DRIVE_CAP_OCP_C1_LOG_PAGE) == 0) {
+		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
+		ret = -1;
+		goto out;
+	}
+
+	ret = wdc_get_ocp_c1_log_page(r, fd, cfg.output_format);
 	if (ret)
-		fprintf(stderr, "ERROR : WDC : Failure reading the C3 Log Page, ret = %d\n", ret);
+		fprintf(stderr, "ERROR : WDC : Failure reading the Error Recovery (C1) Log Page, ret = 0x%x\n", ret);
 
 out:
+	return ret;
+}
+
+static int wdc_get_dev_capabilities_log(int argc, char **argv, struct command *command,
+		struct plugin *plugin)
+{
+	const char *desc = "Retrieve device capabilities log data.";
+	nvme_root_t r;
+	int fd;
+	int ret = 0;
+	__u64 capabilities = 0;
+
+	struct config {
+		char *output_format;
+	};
+
+	struct config cfg = {
+		.output_format = "normal",
+	};
+
+	OPT_ARGS(opts) = {
+		OPT_FMT("output-format",      'o', &cfg.output_format,    "Output Format: normal|json"),
+		OPT_END()
+	};
+
+	fd = parse_and_open(argc, argv, desc, opts);
+	if (fd < 0)
+		return fd;
+
+	r = nvme_scan(NULL);
+	capabilities = wdc_get_drive_capabilities(r, fd);
+
+	if ((capabilities & WDC_DRIVE_CAP_OCP_C4_LOG_PAGE) == 0) {
+		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
+		ret = -1;
+		goto out;
+	}
+
+	ret = wdc_get_ocp_c4_log_page(r, fd, cfg.output_format);
+	if (ret)
+		fprintf(stderr, "ERROR : WDC : Failure reading the Device Capabilities (C4) Log Page, ret = 0x%x\n", ret);
 
+out:
+	return ret;
+}
+
+static int wdc_get_unsupported_reqs_log(int argc, char **argv, struct command *command,
+		struct plugin *plugin)
+{
+	const char *desc = "Retrieve unsupported requirements log data.";
+	nvme_root_t r;
+	int fd;
+	int ret = 0;
+	__u64 capabilities = 0;
+
+	struct config {
+		char *output_format;
+	};
+
+	struct config cfg = {
+		.output_format = "normal",
+	};
+
+	OPT_ARGS(opts) = {
+		OPT_FMT("output-format",      'o', &cfg.output_format,    "Output Format: normal|json"),
+		OPT_END()
+	};
+
+	fd = parse_and_open(argc, argv, desc, opts);
+	if (fd < 0)
+		return fd;
+
+	r = nvme_scan(NULL);
+	capabilities = wdc_get_drive_capabilities(r, fd);
+
+	if ((capabilities & WDC_DRIVE_CAP_OCP_C5_LOG_PAGE) == 0) {
+		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
+		ret = -1;
+		goto out;
+	}
+
+	ret = wdc_get_ocp_c5_log_page(r, fd, cfg.output_format);
+	if (ret)
+		fprintf(stderr, "ERROR : WDC : Failure reading the Unsupported Requirements (C5) Log Page, ret = 0x%x\n", ret);
+
+out:
 	return ret;
 }
 
@@ -5624,8 +6408,8 @@ static int wdc_do_clear_pcie_correctable_errors(int fd)
 	admin_cmd.cdw12 = ((WDC_NVME_CLEAR_PCIE_CORR_SUBCMD << WDC_NVME_SUBCMD_SHIFT) |
 			WDC_NVME_CLEAR_PCIE_CORR_CMD);
 
-	ret = nvme_submit_admin_passthru(fd, &admin_cmd);
-	fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+	ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
+	nvme_show_status(ret);
 	return ret;
 }
 
@@ -5637,8 +6421,8 @@ static int wdc_do_clear_pcie_correctable_errors_vuc(int fd)
 	memset(&admin_cmd, 0, sizeof (admin_cmd));
 	admin_cmd.opcode = WDC_NVME_CLEAR_PCIE_CORR_OPCODE_VUC;
 
-	ret = nvme_submit_admin_passthru(fd, &admin_cmd);
-	fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+	ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
+	nvme_show_status(ret);
 	return ret;
 }
 
@@ -5648,10 +6432,10 @@ static int wdc_do_clear_pcie_correctable_errors_fid(int fd)
 	__u32 result;
 	__u32 value = 1 << 31; /* Bit 31 - clear PCIe correctable count */
 
-	ret = nvme_set_feature(fd, 0, WDC_NVME_CLEAR_PCIE_CORR_FEATURE_ID, value,
-				0, 0, 0, 0, NULL, &result);
+	ret = nvme_set_features_simple(fd, WDC_NVME_CLEAR_PCIE_CORR_FEATURE_ID, 0, value,
+				false, &result);
 
-	fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+	nvme_show_status(ret);
 	return ret;
 }
 
@@ -5660,6 +6444,7 @@ static int wdc_clear_pcie_correctable_errors(int argc, char **argv, struct comma
 {
 	char *desc = "Clear PCIE Correctable Errors.";
 	int fd, ret;
+	nvme_root_t r;
 	__u64 capabilities = 0;
 
 	OPT_ARGS(opts) = {
@@ -5670,12 +6455,13 @@ static int wdc_clear_pcie_correctable_errors(int argc, char **argv, struct comma
 	if (fd < 0)
 		return fd;
 
-	if (!wdc_check_device(fd)) {
+	r = nvme_scan(NULL);
+	if (!wdc_check_device(r, fd)) {
 		ret = -1;
 		goto out;
 	}
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 	if ((capabilities & WDC_DRIVE_CAP_CLEAR_PCIE_MASK) == 0) {
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
 		ret = -1;
@@ -5693,6 +6479,7 @@ static int wdc_clear_pcie_correctable_errors(int argc, char **argv, struct comma
 	}
 
 out:
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -5702,6 +6489,7 @@ static int wdc_drive_status(int argc, char **argv, struct command *command,
 	char *desc = "Get Drive Status.";
 	int fd;
 	int ret = 0;
+	nvme_root_t r;
 	__le32 system_eol_state;
 	__le32 user_eol_state;
 	__le32 format_corrupt_reason = cpu_to_le32(0xFFFFFFFF);
@@ -5718,7 +6506,8 @@ static int wdc_drive_status(int argc, char **argv, struct command *command,
 	if (fd < 0)
 		return fd;
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	r = nvme_scan(NULL);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 	if ((capabilities & WDC_DRIVE_CAP_DRIVE_STATUS) != WDC_DRIVE_CAP_DRIVE_STATUS) {
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
 		ret = -1;
@@ -5726,46 +6515,46 @@ static int wdc_drive_status(int argc, char **argv, struct command *command,
 	}
 
 	/* verify the 0xC2 Device Manageability log page is supported */
-	if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_DEV_MGMNT_LOG_PAGE_OPCODE) == false) {
+	if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_DEV_MGMNT_LOG_PAGE_OPCODE) == false) {
 		fprintf(stderr, "ERROR : WDC : 0xC2 Log Page not supported\n");
 		ret = -1;
 		goto out;
 	}
 
 	/* Get the assert dump present status */
-	if (!wdc_nvme_get_dev_status_log_data(fd, &assert_status,
+	if (!wdc_nvme_get_dev_status_log_data(r, fd, &assert_status,
 			WDC_C2_ASSERT_DUMP_PRESENT_ID))
 		fprintf(stderr, "ERROR : WDC : Get Assert Status Failed\n");
 
 	/* Get the thermal throttling status */
-	if (!wdc_nvme_get_dev_status_log_data(fd, &thermal_status,
+	if (!wdc_nvme_get_dev_status_log_data(r, fd, &thermal_status,
 			WDC_C2_THERMAL_THROTTLE_STATUS_ID))
 		fprintf(stderr, "ERROR : WDC : Get Thermal Throttling Status Failed\n");
 
 	/* Get EOL status */
-	if (!wdc_nvme_get_dev_status_log_data(fd, &eol_status,
+	if (!wdc_nvme_get_dev_status_log_data(r, fd, &eol_status,
 			WDC_C2_USER_EOL_STATUS_ID)) {
 		fprintf(stderr, "ERROR : WDC : Get User EOL Status Failed\n");
 		eol_status = cpu_to_le32(-1);
 	}
 
 	/* Get Customer EOL state */
-	if (!wdc_nvme_get_dev_status_log_data(fd, &user_eol_state,
+	if (!wdc_nvme_get_dev_status_log_data(r, fd, &user_eol_state,
 			WDC_C2_USER_EOL_STATE_ID))
 		fprintf(stderr, "ERROR : WDC : Get User EOL State Failed\n");
 
 	/* Get System EOL state*/
-	if (!wdc_nvme_get_dev_status_log_data(fd, &system_eol_state,
+	if (!wdc_nvme_get_dev_status_log_data(r, fd, &system_eol_state,
 			WDC_C2_SYSTEM_EOL_STATE_ID))
 		fprintf(stderr, "ERROR : WDC : Get System EOL State Failed\n");
 
 	/* Get format corrupt reason*/
-	if (!wdc_nvme_get_dev_status_log_data(fd, &format_corrupt_reason,
+	if (!wdc_nvme_get_dev_status_log_data(r, fd, &format_corrupt_reason,
 			WDC_C2_FORMAT_CORRUPT_REASON_ID))
 		fprintf(stderr, "ERROR : WDC : Get Format Corrupt Reason Failed\n");
 
 	printf("  Drive Status :- \n");
-	if (le32_to_cpu(eol_status) >= 0) {
+	if ((int)le32_to_cpu(eol_status) >= 0) {
 		printf("  Percent Used:				%"PRIu32"%%\n",
 				le32_to_cpu(eol_status));
 	}
@@ -5807,6 +6596,7 @@ static int wdc_drive_status(int argc, char **argv, struct command *command,
 		printf("  Format Corrupt Reason:	        Unknown : 0x%08x\n", le32_to_cpu(format_corrupt_reason));
 
 out:
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -5816,6 +6606,7 @@ static int wdc_clear_assert_dump(int argc, char **argv, struct command *command,
 	char *desc = "Clear Assert Dump Present Status.";
 	int fd;
 	int ret = -1;
+	nvme_root_t r;
 	__le32 assert_status = cpu_to_le32(0xFFFFFFFF);
 	__u64 capabilities = 0;
 	struct nvme_passthru_cmd admin_cmd;
@@ -5828,13 +6619,14 @@ static int wdc_clear_assert_dump(int argc, char **argv, struct command *command,
 	if (fd < 0)
 		return fd;
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	r = nvme_scan(NULL);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 	if ((capabilities & WDC_DRIVE_CAP_CLEAR_ASSERT) != WDC_DRIVE_CAP_CLEAR_ASSERT) {
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
 		ret = -1;
 		goto out;
 	}
-	if (!wdc_nvme_get_dev_status_log_data(fd, &assert_status,
+	if (!wdc_nvme_get_dev_status_log_data(r, fd, &assert_status,
 			WDC_C2_ASSERT_DUMP_PRESENT_ID)) {
 		fprintf(stderr, "ERROR : WDC : Get Assert Status Failed\n");
 		ret = -1;
@@ -5848,23 +6640,24 @@ static int wdc_clear_assert_dump(int argc, char **argv, struct command *command,
 		admin_cmd.cdw12 = ((WDC_NVME_CLEAR_ASSERT_DUMP_SUBCMD << WDC_NVME_SUBCMD_SHIFT) |
 				WDC_NVME_CLEAR_ASSERT_DUMP_CMD);
 
-		ret = nvme_submit_admin_passthru(fd, &admin_cmd);
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
+		nvme_show_status(ret);
 	} else
 		fprintf(stderr, "INFO : WDC : No Assert Dump Present\n");
 
 out:
+	nvme_free_tree(r);
 	return ret;
 }
 
-static int wdc_get_fw_act_history(int fd, char *format)
+static int wdc_get_fw_act_history(nvme_root_t r, int fd, char *format)
 {
 	int ret = 0;
 	int fmt = -1;
 	__u8 *data;
 	struct wdc_fw_act_history_log_hdr *fw_act_history_hdr;
 
-	if (!wdc_check_device(fd))
+	if (!wdc_check_device(r, fd))
 		return -1;
 
 	fmt = validate_output_format(format);
@@ -5874,7 +6667,7 @@ static int wdc_get_fw_act_history(int fd, char *format)
 	}
 
 	/* verify the FW Activate History log page is supported */
-	if (wdc_nvme_check_supported_log_page(fd, WDC_NVME_GET_FW_ACT_HISTORY_LOG_ID) == false) {
+	if (wdc_nvme_check_supported_log_page(r, fd, WDC_NVME_GET_FW_ACT_HISTORY_LOG_ID) == false) {
 		fprintf(stderr, "ERROR : WDC : %d Log Page not supported\n", WDC_NVME_GET_FW_ACT_HISTORY_LOG_ID);
 		return -1;
 	}
@@ -5886,11 +6679,11 @@ static int wdc_get_fw_act_history(int fd, char *format)
 
 	memset(data, 0, sizeof (__u8) * WDC_FW_ACT_HISTORY_LOG_BUF_LEN);
 
-	ret = nvme_get_log(fd, 0xFFFFFFFF, WDC_NVME_GET_FW_ACT_HISTORY_LOG_ID,
-			   false, NVME_NO_LOG_LSP, WDC_FW_ACT_HISTORY_LOG_BUF_LEN, data);
+	ret = nvme_get_log_simple(fd, WDC_NVME_GET_FW_ACT_HISTORY_LOG_ID,
+			   WDC_FW_ACT_HISTORY_LOG_BUF_LEN, data);
 
 	if (strcmp(format, "json"))
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 
 	if (ret == 0) {
 		/* parse the data */
@@ -5915,17 +6708,33 @@ static int wdc_get_fw_act_history(int fd, char *format)
 	return ret;
 }
 
-static int wdc_get_fw_act_history_C2(int fd, char *format)
+static __u32 wdc_get_fw_cust_id(nvme_root_t r, int fd)
+{
+
+	__u32 cust_id = WDC_INVALID_CUSTOMER_ID;
+	__u32 *cust_id_ptr = NULL;
+
+	if (!(get_dev_mgment_cbs_data(r, fd, WDC_C2_CUSTOMER_ID_ID, (void*)&cust_id_ptr))) {
+		fprintf(stderr, "%s: ERROR : WDC : 0xC2 Log Page entry ID 0x%x not found\n", __func__, WDC_C2_CUSTOMER_ID_ID);
+	} else {
+		cust_id = *cust_id_ptr;
+	}
+
+	free(cust_id_ptr);
+	return cust_id;
+}
+
+static int wdc_get_fw_act_history_C2(nvme_root_t r, int fd, char *format)
 {
 	int ret = 0;
 	int fmt = -1;
 	__u8 *data;
-	__u32 *cust_id;
+	__u32 cust_id;
 	struct wdc_fw_act_history_log_format_c2 *fw_act_history_log;
 	__u32 tot_entries = 0, num_entries = 0;
 	__u32 vendor_id = 0, device_id = 0;
 
-	if (!wdc_check_device(fd))
+	if (!wdc_check_device(r, fd))
 		return -1;
 
 	fmt = validate_output_format(format);
@@ -5933,7 +6742,8 @@ static int wdc_get_fw_act_history_C2(int fd, char *format)
 		fprintf(stderr, "ERROR : WDC : invalid output format\n");
 		return fmt;
 	}
-	ret = wdc_get_pci_ids(&device_id, &vendor_id);
+
+	ret = wdc_get_pci_ids(r, &device_id, &vendor_id);
 
 	if ((data = (__u8*) malloc(sizeof (__u8) * WDC_FW_ACT_HISTORY_C2_LOG_BUF_LEN)) == NULL) {
 		fprintf(stderr, "ERROR : WDC : malloc : %s\n", strerror(errno));
@@ -5942,11 +6752,11 @@ static int wdc_get_fw_act_history_C2(int fd, char *format)
 
 	memset(data, 0, sizeof (__u8) * WDC_FW_ACT_HISTORY_C2_LOG_BUF_LEN);
 
-	ret = nvme_get_log(fd, 0xFFFFFFFF, WDC_NVME_GET_FW_ACT_HISTORY_C2_LOG_ID,
-			   false, NVME_NO_LOG_LSP, WDC_FW_ACT_HISTORY_C2_LOG_BUF_LEN, data);
+	ret = nvme_get_log_simple(fd, WDC_NVME_GET_FW_ACT_HISTORY_C2_LOG_ID,
+			   WDC_FW_ACT_HISTORY_C2_LOG_BUF_LEN, data);
 
 	if (strcmp(format, "json"))
-		fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+		nvme_show_status(ret);
 
 	if (ret == 0) {
 		/* parse the data */
@@ -5955,14 +6765,15 @@ static int wdc_get_fw_act_history_C2(int fd, char *format)
 
 		if (tot_entries > 0) {
 			/* get the FW customer id */
-			if (!get_dev_mgment_cbs_data(fd, WDC_C2_CUSTOMER_ID_ID, (void*)&cust_id)) {
-				fprintf(stderr, "%s: ERROR : WDC : 0xC2 Log Page entry ID 0x%x not found\n", __func__, WDC_C2_CUSTOMER_ID_ID);
+			cust_id = wdc_get_fw_cust_id(r, fd);
+			if (cust_id == WDC_INVALID_CUSTOMER_ID) {
+				fprintf(stderr, "%s: ERROR : WDC : invalid customer id\n", __func__);
 				ret = -1;
 				goto freeData;
 			}
 			num_entries = (tot_entries < WDC_MAX_NUM_ACT_HIST_ENTRIES) ? tot_entries :
 				WDC_MAX_NUM_ACT_HIST_ENTRIES;
-			ret = wdc_print_fw_act_history_log(data, num_entries, fmt, *cust_id, vendor_id);
+			ret = wdc_print_fw_act_history_log(data, num_entries, fmt, cust_id, vendor_id);
 		} else  {
 			fprintf(stderr, "INFO : WDC : No FW Activate History entries found.\n");
 			ret = 0;
@@ -5982,6 +6793,7 @@ static int wdc_vs_fw_activate_history(int argc, char **argv, struct command *com
 {
 	int fd;
 	int ret = 0;
+	nvme_root_t r;
 	__u64 capabilities = 0;
 	const char *desc = "Retrieve FW activate history table.";
 
@@ -6004,7 +6816,8 @@ static int wdc_vs_fw_activate_history(int argc, char **argv, struct command *com
 	if (fd < 0)
 		return fd;
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	r = nvme_scan(NULL);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 	if ((capabilities & WDC_DRIVE_CAP_FW_ACTIVATE_HISTORY_MASK) == 0) {
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
 		ret = -1;
@@ -6025,8 +6838,24 @@ static int wdc_vs_fw_activate_history(int argc, char **argv, struct command *com
 		}
 
 		/* Get the 0xC0 log data */
-		ret = nvme_get_log14(fd, 0xFFFFFFFF, WDC_NVME_GET_SMART_CLOUD_ATTR_LOG_OPCODE,
-				NVME_NO_LOG_LSP, 0, 0, false, uuid_index, 0, false, WDC_NVME_SMART_CLOUD_ATTR_LEN, data);
+		struct nvme_get_log_args args = {
+			.args_size	= sizeof(args),
+			.fd		= fd,
+			.lid		= WDC_NVME_GET_SMART_CLOUD_ATTR_LOG_OPCODE,
+			.nsid		= 0xFFFFFFFF,
+			.lpo		= 0,
+			.lsp		= NVME_LOG_LSP_NONE,
+			.lsi		= 0,
+			.rae		= false,
+			.uuidx		= uuid_index,
+			.csi		= NVME_CSI_NVM,
+			.ot		= false,
+			.len		= WDC_NVME_SMART_CLOUD_ATTR_LEN,
+			.log		= data,
+			.timeout	= NVME_DEFAULT_IOCTL_TIMEOUT,
+			.result		= NULL,
+		};
+		ret = nvme_get_log(&args);
 
 		if (ret == 0) {
 			/* Verify GUID matches */
@@ -6043,19 +6872,21 @@ static int wdc_vs_fw_activate_history(int argc, char **argv, struct command *com
 		}
 
 		free(data);
-        if (c0GuidMatch) {
-    	    ret = wdc_get_fw_act_history_C2(fd, cfg.output_format);
-        }
-        else {
-		    ret = wdc_get_fw_act_history(fd, cfg.output_format);
-        }
+		if (c0GuidMatch) {
+			ret = wdc_get_fw_act_history_C2(r, fd,
+							cfg.output_format);
+		}
+		else {
+			ret = wdc_get_fw_act_history(r, fd, cfg.output_format);
+		}
 	} else {
-		ret = wdc_get_fw_act_history_C2(fd, cfg.output_format);
+		ret = wdc_get_fw_act_history_C2(r, fd, cfg.output_format);
 	}
 
 	if (ret)
 		fprintf(stderr, "ERROR : WDC : Failure reading the FW Activate History, ret = %d\n", ret);
 out:
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -6069,8 +6900,8 @@ static int wdc_do_clear_fw_activate_history_vuc(int fd)
 	admin_cmd.cdw12 = ((WDC_NVME_CLEAR_FW_ACT_HIST_SUBCMD << WDC_NVME_SUBCMD_SHIFT) |
 			WDC_NVME_CLEAR_FW_ACT_HIST_CMD);
 
-	ret = nvme_submit_admin_passthru(fd, &admin_cmd);
-	fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+	ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
+	nvme_show_status(ret);
 
 	return ret;
 }
@@ -6081,10 +6912,10 @@ static int wdc_do_clear_fw_activate_history_fid(int fd)
 	__u32 result;
 	__u32 value = 1 << 31; /* Bit 31 - Clear Firmware Update History Log */
 
-	ret = nvme_set_feature(fd, 0, WDC_NVME_CLEAR_FW_ACT_HIST_VU_FID, value,
-				0, 0, 0, 0, NULL, &result);
+	ret = nvme_set_features_simple(fd, WDC_NVME_CLEAR_FW_ACT_HIST_VU_FID, 0, value,
+				false, &result);
 
-	fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+	nvme_show_status(ret);
 	return ret;
 }
 
@@ -6094,6 +6925,7 @@ static int wdc_clear_fw_activate_history(int argc, char **argv, struct command *
 	char *desc = "Clear FW activate history table.";
 	int fd;
 	int ret = -1;
+	nvme_root_t r;
 	__u64 capabilities = 0;
 
 	OPT_ARGS(opts) = {
@@ -6104,7 +6936,8 @@ static int wdc_clear_fw_activate_history(int argc, char **argv, struct command *
 	if (fd < 0)
 		return fd;
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	r = nvme_scan(NULL);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 	if ((capabilities & WDC_DRIVE_CAP_CLEAR_FW_ACT_HISTORY_MASK) == 0) {
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
 		ret = -1;
@@ -6119,6 +6952,7 @@ static int wdc_clear_fw_activate_history(int argc, char **argv, struct command *
 	}
 
 out:
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -6131,21 +6965,21 @@ static int wdc_vs_telemetry_controller_option(int argc, char **argv, struct comm
 	char *status = "Displays the current state of the controller initiated log page.";
 	int fd;
 	int ret = -1;
+	nvme_root_t r;
 	__u64 capabilities = 0;
 	__u32 result;
-	void *buf = NULL;
 
 
 	struct config {
-		int disable;
-		int enable;
-		int status;
+		bool disable;
+		bool enable;
+		bool status;
 	};
 
 	struct config cfg = {
-		.disable = 0,
-		.enable = 0,
-		.status = 0,
+		.disable = false,
+		.enable = false,
+		.status = false,
 	};
 
 	OPT_ARGS(opts) = {
@@ -6159,7 +6993,8 @@ static int wdc_vs_telemetry_controller_option(int argc, char **argv, struct comm
 	if (fd < 0)
 		return fd;
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	r = nvme_scan(NULL);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 	if ((capabilities & WDC_DRVIE_CAP_DISABLE_CTLR_TELE_LOG) != WDC_DRVIE_CAP_DISABLE_CTLR_TELE_LOG) {
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
 		ret = -1;
@@ -6175,26 +7010,26 @@ static int wdc_vs_telemetry_controller_option(int argc, char **argv, struct comm
 	}
 
 	if (cfg.disable) {
-		ret = nvme_set_feature(fd, 0, WDC_VU_DISABLE_CNTLR_TELEMETRY_OPTION_FEATURE_ID, 1,
-				       0, 0, 0, 0, buf, &result);
+		ret = nvme_set_features_simple(fd, WDC_VU_DISABLE_CNTLR_TELEMETRY_OPTION_FEATURE_ID, 0, 1,
+				       false, &result);
 
 		wdc_clear_reason_id(fd);
 	}
 	else {
 	   if (cfg.enable) {
-			ret = nvme_set_feature(fd, 0, WDC_VU_DISABLE_CNTLR_TELEMETRY_OPTION_FEATURE_ID, 0,
-					       0, 0, 0, 0, buf, &result);
+			ret = nvme_set_features_simple(fd, WDC_VU_DISABLE_CNTLR_TELEMETRY_OPTION_FEATURE_ID, 0, 0,
+					       false, &result);
 	   }
 	   else if (cfg.status) {
-			ret = nvme_get_feature(fd, 0, WDC_VU_DISABLE_CNTLR_TELEMETRY_OPTION_FEATURE_ID, 0, 0,
-					0, 4, buf, &result);
+			ret = nvme_get_features_simple(fd, WDC_VU_DISABLE_CNTLR_TELEMETRY_OPTION_FEATURE_ID, 0,
+					&result);
 			if (ret == 0) {
 				if (result)
 					fprintf(stderr, "Controller Option Telemetry Log Page State: Disabled\n");
 				else
 					fprintf(stderr, "Controller Option Telemetry Log Page State: Enabled\n");
 			} else {
-				fprintf(stderr, "ERROR : WDC: NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+				nvme_show_status(ret);
 			}
 	   }
 	   else {
@@ -6207,6 +7042,7 @@ static int wdc_vs_telemetry_controller_option(int argc, char **argv, struct comm
 	}
 
 out:
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -6261,7 +7097,7 @@ static int wdc_get_max_transfer_len(int fd, __u32 *maxTransferLen)
 static int wdc_de_VU_read_size(int fd, __u32 fileId, __u16 spiDestn, __u32* logSize)
 {
 	int ret = WDC_STATUS_FAILURE;
-	struct nvme_admin_cmd cmd;
+	struct nvme_passthru_cmd cmd;
 
 	if(!fd || !logSize )
 	{
@@ -6269,18 +7105,20 @@ static int wdc_de_VU_read_size(int fd, __u32 fileId, __u16 spiDestn, __u32* logS
 		goto end;
 	}
 
-	memset(&cmd,0,sizeof(struct nvme_admin_cmd));
+	memset(&cmd,0,sizeof(struct nvme_passthru_cmd));
 	cmd.opcode = WDC_DE_VU_READ_SIZE_OPCODE;
 	cmd.nsid = WDC_DE_DEFAULT_NAMESPACE_ID;
 	cmd.cdw13 = fileId<<16;
 	cmd.cdw14 = spiDestn;
 
-	ret = nvme_submit_admin_passthru(fd, &cmd);
+	ret = nvme_submit_admin_passthru(fd, &cmd, NULL);
 
 	if (!ret && logSize)
 		*logSize = cmd.result;
-	if( ret != WDC_STATUS_SUCCESS)
-		fprintf(stderr, "ERROR : WDC : VUReadSize() failed, status:%s(0x%x)\n", nvme_status_to_string(ret), ret);
+	if( ret != WDC_STATUS_SUCCESS) {
+		fprintf(stderr, "ERROR : WDC : VUReadSize() failed, ");
+		nvme_show_status(ret);
+	}
 
 	end:
 	return ret;
@@ -6289,7 +7127,7 @@ static int wdc_de_VU_read_size(int fd, __u32 fileId, __u16 spiDestn, __u32* logS
 static int wdc_de_VU_read_buffer(int fd, __u32 fileId, __u16 spiDestn, __u32 offsetInDwords, __u8* dataBuffer, __u32* bufferSize)
 {
 	int ret = WDC_STATUS_FAILURE;
-	struct nvme_admin_cmd cmd;
+	struct nvme_passthru_cmd cmd;
 	__u32 noOfDwordExpected = 0;
 
 	if(!fd || !dataBuffer || !bufferSize)
@@ -6298,7 +7136,7 @@ static int wdc_de_VU_read_buffer(int fd, __u32 fileId, __u16 spiDestn, __u32 off
 		goto end;
 	}
 
-	memset(&cmd,0,sizeof(struct nvme_admin_cmd));
+	memset(&cmd,0,sizeof(struct nvme_passthru_cmd));
 	noOfDwordExpected = *bufferSize/sizeof(__u32);
 	cmd.opcode = WDC_DE_VU_READ_BUFFER_OPCODE;
 	cmd.nsid = WDC_DE_DEFAULT_NAMESPACE_ID;
@@ -6310,10 +7148,12 @@ static int wdc_de_VU_read_buffer(int fd, __u32 fileId, __u16 spiDestn, __u32 off
 	cmd.addr = (__u64)(__u64)(uintptr_t)dataBuffer;
 	cmd.data_len = *bufferSize;
 
-	ret = nvme_submit_admin_passthru(fd, &cmd);
+	ret = nvme_submit_admin_passthru(fd, &cmd, NULL);
 
-	if( ret != WDC_STATUS_SUCCESS)
-		fprintf(stderr, "ERROR : WDC : VUReadBuffer() failed, status:%s(0x%x)\n", nvme_status_to_string(ret), ret);
+	if( ret != WDC_STATUS_SUCCESS) {
+		fprintf(stderr, "ERROR : WDC : VUReadBuffer() failed, ");
+		nvme_show_status(ret);
+	}
 
 	end:
 	return ret;
@@ -6620,7 +7460,7 @@ static int wdc_de_get_dump_trace(int fd, char * filePath, __u16 binFileNameLen,
 	return ret;
 }
 
-static int wdc_do_drive_essentials(int fd, char *dir, char *key)
+static int wdc_do_drive_essentials(nvme_root_t r, int fd, char *dir, char *key)
 {
 	int ret = 0;
 	void *retPtr;
@@ -6649,7 +7489,7 @@ static int wdc_do_drive_essentials(int fd, char *dir, char *key)
 	struct nvme_id_ns ns;
 	struct nvme_error_log_page *elogBuffer;
 	struct nvme_smart_log smart_log;
-	struct nvme_firmware_log_page fw_log;
+	struct nvme_firmware_slot fw_log;
 	PWDC_NVME_DE_VU_LOGPAGES vuLogInput = NULL;
 	WDC_DE_VU_LOG_DIRECTORY deEssentialsList;
 
@@ -6725,7 +7565,7 @@ static int wdc_do_drive_essentials(int fd, char *dir, char *key)
 	}
 
 	memset(&ns, 0, sizeof (struct nvme_id_ns));
-	ret = nvme_identify_ns(fd, 1, 0, &ns);
+	ret = nvme_identify_ns(fd, 1, &ns);
 	if (ret) {
 		fprintf(stderr, "ERROR : WDC : nvme_identify_ns() failed, ret = %d\n", ret);
 	} else {
@@ -6740,7 +7580,7 @@ static int wdc_do_drive_essentials(int fd, char *dir, char *key)
 	dataBuffer = calloc(1, elogBufferSize);
 	elogBuffer = (struct nvme_error_log_page *)dataBuffer;
 
-	ret = nvme_error_log(fd, elogNumEntries, elogBuffer);
+	ret = nvme_get_log_error(fd, elogNumEntries, false, elogBuffer);
 	if (ret) {
 		fprintf(stderr, "ERROR : WDC : nvme_error_log() failed, ret = %d\n", ret);
 	} else {
@@ -6754,7 +7594,7 @@ static int wdc_do_drive_essentials(int fd, char *dir, char *key)
 
 	/* Get Smart log page  */
 	memset(&smart_log, 0, sizeof (struct nvme_smart_log));
-	ret = nvme_smart_log(fd, NVME_NSID_ALL, &smart_log);
+	ret = nvme_get_log_smart(fd, NVME_NSID_ALL, false, &smart_log);
 	if (ret) {
 		fprintf(stderr, "ERROR : WDC : nvme_smart_log() failed, ret = %d\n", ret);
 	} else {
@@ -6764,14 +7604,14 @@ static int wdc_do_drive_essentials(int fd, char *dir, char *key)
 	}
 
 	/* Get FW Slot log page  */
-	memset(&fw_log, 0, sizeof (struct nvme_firmware_log_page));
-	ret = nvme_fw_log(fd, &fw_log);
+	memset(&fw_log, 0, sizeof (struct nvme_firmware_slot));
+	ret = nvme_get_log_fw_slot(fd, true, &fw_log);
 	if (ret) {
 		fprintf(stderr, "ERROR : WDC : nvme_fw_log() failed, ret = %d\n", ret);
 	} else {
 		wdc_UtilsSnprintf(fileName, MAX_PATH_LEN, "%s%s%s_%s_%s.bin", (char*)bufferFolderPath, WDC_DE_PATH_SEPARATOR,
 				"FwSLotLog", (char*)serialNo, (char*)timeString);
-		wdc_WriteToFile(fileName, (char*)&fw_log, sizeof(struct nvme_firmware_log_page));
+		wdc_WriteToFile(fileName, (char*)&fw_log, sizeof(struct nvme_firmware_slot));
 	}
 
 	/* Get VU log pages  */
@@ -6785,8 +7625,8 @@ static int wdc_do_drive_essentials(int fd, char *dir, char *key)
 		dataBuffer = calloc(1, dataBufferSize);
 		memset(dataBuffer, 0, dataBufferSize);
 
-		ret = nvme_get_log(fd, WDC_DE_GLOBAL_NSID, deVULogPagesList[vuLogIdx].logPageId,
-				   false, NVME_NO_LOG_LSP, dataBufferSize, dataBuffer);
+		ret = nvme_get_log_simple(fd, deVULogPagesList[vuLogIdx].logPageId,
+				   dataBufferSize, dataBuffer);
 		if (ret) {
 			fprintf(stderr, "ERROR : WDC : nvme_get_log() for log page 0x%x failed, ret = %d\n",
 					deVULogPagesList[vuLogIdx].logPageId, ret);
@@ -6810,8 +7650,8 @@ static int wdc_do_drive_essentials(int fd, char *dir, char *key)
 		/* skipping  LbaRangeType as it is an optional nvme command and not supported */
 		if (deFeatureIdList[listIdx].featureId == FID_LBA_RANGE_TYPE)
 			continue;
-		ret = nvme_get_feature(fd, WDC_DE_GLOBAL_NSID, deFeatureIdList[listIdx].featureId, FS_CURRENT, 0,
-				0, sizeof(featureIdBuff), &featureIdBuff, &result);
+		ret = nvme_get_features_data(fd, deFeatureIdList[listIdx].featureId, WDC_DE_GLOBAL_NSID,
+				sizeof(featureIdBuff), &featureIdBuff, &result);
 
 		if (ret) {
 			fprintf(stderr, "ERROR : WDC : nvme_get_feature id 0x%x failed, ret = %d\n",
@@ -6905,6 +7745,7 @@ static int wdc_do_drive_essentials(int fd, char *dir, char *key)
 	}
 
 	fprintf(stderr, "Get of Drive Essentials data successful\n");
+	nvme_free_tree(r);
 	return 0;
 }
 
@@ -6917,6 +7758,7 @@ static int wdc_drive_essentials(int argc, char **argv, struct command *command,
 	char k[PATH_MAX] = {0};
 	char *d_ptr;
 	int fd;
+	nvme_root_t r;
 	__u64 capabilities = 0;
 
 	struct config {
@@ -6937,9 +7779,11 @@ static int wdc_drive_essentials(int argc, char **argv, struct command *command,
 	if (fd < 0)
 		return fd;
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	r = nvme_scan(NULL);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 	if ((capabilities & WDC_DRIVE_CAP_DRIVE_ESSENTIALS) != WDC_DRIVE_CAP_DRIVE_ESSENTIALS) {
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
+		nvme_free_tree(r);
 		return -1;
 	}
 
@@ -6950,49 +7794,49 @@ static int wdc_drive_essentials(int argc, char **argv, struct command *command,
 		d_ptr = NULL;
 	}
 
-	return wdc_do_drive_essentials(fd, d_ptr, k);
+	return wdc_do_drive_essentials(r, fd, d_ptr, k);
 }
 
 static int wdc_do_drive_resize(int fd, uint64_t new_size)
 {
 	int ret;
-	struct nvme_admin_cmd admin_cmd;
+	struct nvme_passthru_cmd admin_cmd;
 
-	memset(&admin_cmd, 0, sizeof (struct nvme_admin_cmd));
+	memset(&admin_cmd, 0, sizeof (struct nvme_passthru_cmd));
 	admin_cmd.opcode = WDC_NVME_DRIVE_RESIZE_OPCODE;
 	admin_cmd.cdw12 = ((WDC_NVME_DRIVE_RESIZE_SUBCMD << WDC_NVME_SUBCMD_SHIFT) |
 			    WDC_NVME_DRIVE_RESIZE_CMD);
 	admin_cmd.cdw13 = new_size;
 
-	ret = nvme_submit_admin_passthru(fd, &admin_cmd);
+	ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
 	return ret;
 }
 
 static int wdc_do_namespace_resize(int fd, __u32 nsid, __u32 op_option)
 {
 	int ret;
-	struct nvme_admin_cmd admin_cmd;
+	struct nvme_passthru_cmd admin_cmd;
 
-	memset(&admin_cmd, 0, sizeof (struct nvme_admin_cmd));
+	memset(&admin_cmd, 0, sizeof (struct nvme_passthru_cmd));
 	admin_cmd.opcode = WDC_NVME_NAMESPACE_RESIZE_OPCODE;
 	admin_cmd.nsid = nsid;
 	admin_cmd.cdw10 = op_option;
 
-	ret = nvme_submit_admin_passthru(fd, &admin_cmd);
+	ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
 	return ret;
 }
 
 static int wdc_do_drive_info(int fd, __u32 *result)
 {
 	int ret;
-	struct nvme_admin_cmd admin_cmd;
+	struct nvme_passthru_cmd admin_cmd;
 
-	memset(&admin_cmd, 0, sizeof (struct nvme_admin_cmd));
+	memset(&admin_cmd, 0, sizeof (struct nvme_passthru_cmd));
 	admin_cmd.opcode = WDC_NVME_DRIVE_INFO_OPCODE;
 	admin_cmd.cdw12 = ((WDC_NVME_DRIVE_INFO_SUBCMD << WDC_NVME_SUBCMD_SHIFT) |
 			    WDC_NVME_DRIVE_INFO_CMD);
 
-	ret = nvme_submit_admin_passthru(fd, &admin_cmd);
+	ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
 
 	if (!ret && result)
 		*result = admin_cmd.result;
@@ -7005,6 +7849,7 @@ static int wdc_drive_resize(int argc, char **argv,
 {
 	const char *desc = "Send a Resize command.";
 	const char *size = "The new size (in GB) to resize the drive to.";
+	nvme_root_t r;
 	uint64_t capabilities = 0;
 	int fd, ret;
 
@@ -7025,8 +7870,9 @@ static int wdc_drive_resize(int argc, char **argv,
 	if (fd < 0)
 		return fd;
 
-	wdc_check_device(fd);
-	capabilities = wdc_get_drive_capabilities(fd);
+	r = nvme_scan(NULL);
+	wdc_check_device(r, fd);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 	if ((capabilities & WDC_DRIVE_CAP_RESIZE) == WDC_DRIVE_CAP_RESIZE) {
 		ret = wdc_do_drive_resize(fd, cfg.size);
 	} else {
@@ -7037,7 +7883,8 @@ static int wdc_drive_resize(int argc, char **argv,
 	if (!ret)
 		printf("New size: %" PRIu64 " GB\n", cfg.size);
 
-	fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+	nvme_show_status(ret);
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -7047,6 +7894,7 @@ static int wdc_namespace_resize(int argc, char **argv,
 	const char *desc = "Send a Namespace Resize command.";
 	const char *namespace_id = "The namespace id to resize.";
 	const char *op_option = "The over provisioning option to set for namespace.";
+	nvme_root_t r;
 	uint64_t capabilities = 0;
 	int fd, ret;
 
@@ -7079,8 +7927,9 @@ static int wdc_namespace_resize(int argc, char **argv,
 		return -1;
 	}
 
-	wdc_check_device(fd);
-	capabilities = wdc_get_drive_capabilities(fd);
+	r = nvme_scan(NULL);
+	wdc_check_device(r, fd);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 	if ((capabilities & WDC_DRIVE_CAP_NS_RESIZE) == WDC_DRIVE_CAP_NS_RESIZE) {
 		ret = wdc_do_namespace_resize(fd, cfg.namespace_id, cfg.op_option);
 
@@ -7091,7 +7940,8 @@ static int wdc_namespace_resize(int argc, char **argv,
 		ret = -1;
 	}
 
-	fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+	nvme_show_status(ret);
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -7101,6 +7951,7 @@ static int wdc_reason_identifier(int argc, char **argv,
 	const char *desc = "Retrieve telemetry log reason identifier.";
 	const char *log_id = "Log ID to retrieve - host - 7 or controller - 8";
 	const char *fname = "File name to save raw binary identifier";
+	nvme_root_t r;
 	int fd;
 	int ret;
 	uint64_t capabilities = 0;
@@ -7130,7 +7981,9 @@ static int wdc_reason_identifier(int argc, char **argv,
 	if (fd < 0)
 		return fd;
 
-	if (cfg.log_id != NVME_LOG_TELEMETRY_HOST && cfg.log_id != NVME_LOG_TELEMETRY_CTRL) {
+	r = nvme_scan(NULL);
+
+	if (cfg.log_id != NVME_LOG_LID_TELEMETRY_HOST&& cfg.log_id != NVME_LOG_LID_TELEMETRY_CTRL) {
 		fprintf(stderr, "ERROR : WDC: Invalid Log ID. It must be 7 (Host) or 8 (Controller)\n");
 		ret = -1;
 		goto close_fd;
@@ -7154,7 +8007,7 @@ static int wdc_reason_identifier(int argc, char **argv,
 		wdc_UtilsSnprintf((char*)timeStamp, MAX_PATH_LEN, "%02u%02u%02u_%02u%02u%02u",
 			timeInfo.year, timeInfo.month, timeInfo.dayOfMonth,
 			timeInfo.hour, timeInfo.minute, timeInfo.second);
-		if (cfg.log_id == NVME_LOG_TELEMETRY_CTRL)
+		if (cfg.log_id == NVME_LOG_LID_TELEMETRY_CTRL)
 			snprintf(fileSuffix, PATH_MAX, "_error_reason_identifier_ctlr_%s", (char*)timeStamp);
 		else
 			snprintf(fileSuffix, PATH_MAX, "_error_reason_identifier_host_%s", (char*)timeStamp);
@@ -7170,7 +8023,7 @@ static int wdc_reason_identifier(int argc, char **argv,
 
 	fprintf(stderr, "%s: filename = %s\n", __func__, f);
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 	if ((capabilities & WDC_DRIVE_CAP_REASON_ID) == WDC_DRIVE_CAP_REASON_ID) {
 		ret = wdc_do_get_reason_id(fd, f, cfg.log_id);
 	} else {
@@ -7178,50 +8031,51 @@ static int wdc_reason_identifier(int argc, char **argv,
 		ret = -1;
 	}
 
-	fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+	nvme_show_status(ret);
 
  close_fd:
-		close(fd);
-		return ret;
+	close(fd);
+	nvme_free_tree(r);
+	return ret;
 }
 
 static const char *nvme_log_id_to_string(__u8 log_id)
 {
 	switch (log_id) {
-		case NVME_LOG_ERROR:	        return "Error Information Log ID";
-		case NVME_LOG_SMART:	        return "Smart/Health Information Log ID";
-		case NVME_LOG_FW_SLOT:	        return "Firmware Slot Information Log ID";
-		case NVME_LOG_CHANGED_NS:       return "Namespace Changed Log ID";
-		case NVME_LOG_CMD_EFFECTS:      return "Commamds Supported and Effects Log ID";
-		case NVME_LOG_DEVICE_SELF_TEST:	return "Device Self Test Log ID";
-		case NVME_LOG_TELEMETRY_HOST:	return "Telemetry Host Initiated Log ID";
-		case NVME_LOG_TELEMETRY_CTRL:	return "Telemetry Controller Generated Log ID";
-		case NVME_LOG_ENDURANCE_GROUP:	return "Endurance Group Log ID";
-		case NVME_LOG_ANA:              return "ANA Log ID";
-		case NVME_LOG_PERSISTENT_EVENT: return "Persistent Event Log ID";
-		case NVME_LOG_DISC:             return "Discovery Log ID";
-		case NVME_LOG_RESERVATION:      return "Reservation Notification Log ID";
-		case NVME_LOG_SANITIZE:	        return "Sanitize Status Log ID";
-
-		case WDC_LOG_ID_C0:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_C1:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_C2:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_C4:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_C5:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_C6:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_C8:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_CA:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_CB:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_D0:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_D1:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_D6:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_D7:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_D8:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_DE:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_F0:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_F1:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_F2:             return "WDC Vendor Unique Log ID";
-		case WDC_LOG_ID_FA:             return "WDC Vendor Unique Log ID";
+		case NVME_LOG_LID_ERROR:	    return "Error Information Log ID";
+		case NVME_LOG_LID_SMART:	    return "Smart/Health Information Log ID";
+		case NVME_LOG_LID_FW_SLOT:	    return "Firmware Slot Information Log ID";
+		case NVME_LOG_LID_CHANGED_NS:       return "Namespace Changed Log ID";
+		case NVME_LOG_LID_CMD_EFFECTS:      return "Commamds Supported and Effects Log ID";
+		case NVME_LOG_LID_DEVICE_SELF_TEST: return "Device Self Test Log ID";
+		case NVME_LOG_LID_TELEMETRY_HOST:   return "Telemetry Host Initiated Log ID";
+		case NVME_LOG_LID_TELEMETRY_CTRL:   return "Telemetry Controller Generated Log ID";
+		case NVME_LOG_LID_ENDURANCE_GROUP:  return "Endurance Group Log ID";
+		case NVME_LOG_LID_ANA:              return "ANA Log ID";
+		case NVME_LOG_LID_PERSISTENT_EVENT: return "Persistent Event Log ID";
+		case NVME_LOG_LID_DISCOVER:         return "Discovery Log ID";
+		case NVME_LOG_LID_RESERVATION:      return "Reservation Notification Log ID";
+		case NVME_LOG_LID_SANITIZE:	    return "Sanitize Status Log ID";
+
+		case WDC_LOG_ID_C0:             return "WDC Vendor Unique Log ID C0";
+		case WDC_LOG_ID_C1:             return "WDC Vendor Unique Log ID C1";
+		case WDC_LOG_ID_C2:             return "WDC Vendor Unique Log ID C2";
+		case WDC_LOG_ID_C4:             return "WDC Vendor Unique Log ID C4";
+		case WDC_LOG_ID_C5:             return "WDC Vendor Unique Log ID C5";
+		case WDC_LOG_ID_C6:             return "WDC Vendor Unique Log ID C6";
+		case WDC_LOG_ID_C8:             return "WDC Vendor Unique Log ID C8";
+		case WDC_LOG_ID_CA:             return "WDC Vendor Unique Log ID CA";
+		case WDC_LOG_ID_CB:             return "WDC Vendor Unique Log ID CB";
+		case WDC_LOG_ID_D0:             return "WDC Vendor Unique Log ID D0";
+		case WDC_LOG_ID_D1:             return "WDC Vendor Unique Log ID D1";
+		case WDC_LOG_ID_D6:             return "WDC Vendor Unique Log ID D6";
+		case WDC_LOG_ID_D7:             return "WDC Vendor Unique Log ID D7";
+		case WDC_LOG_ID_D8:             return "WDC Vendor Unique Log ID D8";
+		case WDC_LOG_ID_DE:             return "WDC Vendor Unique Log ID DE";
+		case WDC_LOG_ID_F0:             return "WDC Vendor Unique Log ID F0";
+		case WDC_LOG_ID_F1:             return "WDC Vendor Unique Log ID F1";
+		case WDC_LOG_ID_F2:             return "WDC Vendor Unique Log ID F2";
+		case WDC_LOG_ID_FA:             return "WDC Vendor Unique Log ID FA";
 
 		default:                        return "Unknown Log ID";
 	}
@@ -7233,9 +8087,10 @@ static int wdc_log_page_directory(int argc, char **argv, struct command *command
 	const char *desc = "Retrieve Log Page Directory.";
 	int fd;
 	int ret = 0;
+	nvme_root_t r;
 	__u64 capabilities = 0;
 	struct wdc_c2_cbs_data *cbs_data = NULL;
-	int i;
+    int i;
 	__u8 log_id = 0;
 	__u32 device_id, read_vendor_id;
 
@@ -7261,25 +8116,26 @@ static int wdc_log_page_directory(int argc, char **argv, struct command *command
 		fprintf(stderr, "%s: ERROR : WDC : invalid output format\n", __func__);
 		return ret;
 	}
+	ret = 0;
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	r = nvme_scan(NULL);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 
 	if ((capabilities & WDC_DRIVE_CAP_LOG_PAGE_DIR) == 0) {
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
 		ret = -1;
-	}
-	else {
-		ret = wdc_get_pci_ids(&device_id, &read_vendor_id);
+	} else {
+		ret = wdc_get_pci_ids(r, &device_id, &read_vendor_id);
 		log_id = (device_id == WDC_NVME_ZN350_DEV_ID || device_id == WDC_NVME_ZN350_DEV_ID_1) ?
 			WDC_NVME_GET_DEV_MGMNT_LOG_PAGE_OPCODE_C8 : WDC_NVME_GET_DEV_MGMNT_LOG_PAGE_OPCODE;
 		/* verify the 0xC2 Device Manageability log page is supported */
-		if (wdc_nvme_check_supported_log_page(fd, log_id) == false) {
+		if (wdc_nvme_check_supported_log_page(r, fd, log_id) == false) {
 			fprintf(stderr, "%s: ERROR : WDC : 0x%x Log Page not supported\n", __func__, log_id);
 			ret = -1;
 			goto out;
 		}
 
-		if (get_dev_mgment_cbs_data(fd, WDC_C2_LOG_PAGES_SUPPORTED_ID, (void *)&cbs_data)) {
+		if (get_dev_mgment_cbs_data(r, fd, WDC_C2_LOG_PAGES_SUPPORTED_ID, (void *)&cbs_data)) {
 			if (cbs_data != NULL) {
 				printf("Log Page Directory\n");
 				/* print the supported pages */
@@ -7304,6 +8160,8 @@ static int wdc_log_page_directory(int argc, char **argv, struct command *command
 					json_free_object(root);
 				} else
 					fprintf(stderr, "%s: ERROR : WDC : Invalid format, format = %s\n", __func__, cfg.output_format);
+
+				free(cbs_data);
 			} else
 				fprintf(stderr, "%s: ERROR : WDC : NULL_data ptr\n", __func__);
 		} else
@@ -7313,6 +8171,7 @@ static int wdc_log_page_directory(int argc, char **argv, struct command *command
 	}
 
  out:
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -7419,14 +8278,33 @@ static int wdc_clear_reason_id(int fd)
 	return ret;
 }
 
+static int wdc_dump_telemetry_hdr(int fd, int log_id, struct nvme_telemetry_log *log_hdr)
+{
+	int ret = 0;
+
+	if (log_id == NVME_LOG_LID_TELEMETRY_HOST)
+		ret = nvme_get_log_create_telemetry_host(fd, log_hdr);
+	else
+		ret = nvme_get_log_telemetry_ctrl(fd, false, 0, 512, (void *)log_hdr);
+
+	if (ret < 0)
+		perror("get-telemetry-log");
+	else if (ret > 0) {
+		nvme_show_status(ret);
+		fprintf(stderr, "%s: ERROR : Failed to acquire telemetry header, ret = %d!\n", __func__, ret);
+	}
+
+	return ret;
+}
+
 static int wdc_do_get_reason_id(int fd, char *file, int log_id)
 {
 	int ret;
-	struct nvme_telemetry_log_page_hdr *log_hdr;
-	__u32 log_hdr_size = sizeof(struct nvme_telemetry_log_page_hdr);
+	struct nvme_telemetry_log *log_hdr;
+	__u32 log_hdr_size = sizeof(struct nvme_telemetry_log);
 	__u32 reason_id_size = 0;
 
-	log_hdr = (struct nvme_telemetry_log_page_hdr *) malloc(log_hdr_size);
+	log_hdr = (struct nvme_telemetry_log *) malloc(log_hdr_size);
 	if (log_hdr == NULL) {
 		fprintf(stderr, "%s: ERROR : malloc failed, size : 0x%x, status : %s\n", __func__, log_hdr_size, strerror(errno));
 		ret = -1;
@@ -7443,7 +8321,7 @@ static int wdc_do_get_reason_id(int fd, char *file, int log_id)
 
 	reason_id_size = sizeof(log_hdr->rsnident);
 
-	if (log_id == NVME_LOG_TELEMETRY_CTRL)
+	if (log_id == NVME_LOG_LID_TELEMETRY_CTRL)
 		wdc_save_reason_id(fd, log_hdr->rsnident, reason_id_size);
 
 	ret = wdc_create_log_file(file, (__u8 *)log_hdr->rsnident, reason_id_size);
@@ -7453,27 +8331,6 @@ out:
 	return ret;
 }
 
-static int wdc_dump_telemetry_hdr(int fd, int log_id, struct nvme_telemetry_log_page_hdr *log_hdr)
-{
-	int ret = 0;
-	int host_gen = 0, ctrl_init = 0;
-
-	if (log_id == NVME_LOG_TELEMETRY_HOST)
-		host_gen = 1;
-	else
-		ctrl_init = 1;
-
-	ret = nvme_get_telemetry_log(fd, log_hdr, host_gen, ctrl_init, 512, 0);
-	if (ret < 0)
-		perror("get-telemetry-log");
-	else if (ret > 0) {
-		nvme_show_status(ret);
-		fprintf(stderr, "%s: ERROR : Failed to acquire telemetry header, ret = %d!\n", __func__, ret);
-	}
-
-	return ret;
-}
-
 static void wdc_print_nand_stats_normal(__u16 version, void *data)
 {
 	struct wdc_nand_stats *nand_stats = (struct wdc_nand_stats *)(data);
@@ -7625,11 +8482,11 @@ static void wdc_print_nand_stats_json(__u16 version, void *data)
 				le32_to_cpu(nand_stats->nand_erase_failure));
 		json_object_add_value_uint(root, "Bad Block Count",
 				le32_to_cpu(nand_stats->bad_block_count));
-		json_object_add_value_uint(root, "NAND XOR/RAID Recovery Trigger Events",
+		json_object_add_value_uint64(root, "NAND XOR/RAID Recovery Trigger Events",
 				le64_to_cpu(nand_stats->nand_rec_trigger_event));
-		json_object_add_value_uint(root, "E2E Error Counter",
+		json_object_add_value_uint64(root, "E2E Error Counter",
 				le64_to_cpu(nand_stats->e2e_error_counter));
-		json_object_add_value_uint(root, "Number Successful NS Resizing Events",
+		json_object_add_value_uint64(root, "Number Successful NS Resizing Events",
 				le64_to_cpu(nand_stats->successful_ns_resize_event));
 
 		json_print_object(root, NULL);
@@ -7647,13 +8504,13 @@ static void wdc_print_nand_stats_json(__u16 version, void *data)
 		temp_raw = ((*temp_ptr & 0xFFFFFFFFFFFF0000) >> 16);
 		json_object_add_value_uint(root, "Bad NAND Blocks Count - Normalized",
 				le16_to_cpu(temp_norm));
-		json_object_add_value_uint(root, "Bad NAND Blocks Count - Raw",
+		json_object_add_value_uint64(root, "Bad NAND Blocks Count - Raw",
 				le64_to_cpu(temp_raw));
-		json_object_add_value_uint(root, "NAND XOR Recovery count",
+		json_object_add_value_uint64(root, "NAND XOR Recovery count",
 				le64_to_cpu(nand_stats_v3->xor_recovery_count));
-		json_object_add_value_uint(root, "UECC Read Error count",
+		json_object_add_value_uint64(root, "UECC Read Error count",
 				le64_to_cpu(nand_stats_v3->uecc_read_error_count));
-		json_object_add_value_uint(root, "SSD End to End corrected errors",
+		json_object_add_value_uint64(root, "SSD End to End corrected errors",
 				le64_to_cpu(nand_stats_v3->ssd_correction_counts[0]));
 		json_object_add_value_uint(root, "SSD End to End detected errors",
 				le32_to_cpu(nand_stats_v3->ssd_correction_counts[8]));
@@ -7661,54 +8518,54 @@ static void wdc_print_nand_stats_json(__u16 version, void *data)
 				le32_to_cpu(nand_stats_v3->ssd_correction_counts[12]));
 		json_object_add_value_uint(root, "System data % life-used",
 				nand_stats_v3->percent_life_used);
-		json_object_add_value_uint(root, "User Data Erase Counts - SLC Min",
+		json_object_add_value_uint64(root, "User Data Erase Counts - SLC Min",
 				le64_to_cpu(nand_stats_v3->user_data_erase_counts[0]));
-		json_object_add_value_uint(root, "User Data Erase Counts - SLC Max",
+		json_object_add_value_uint64(root, "User Data Erase Counts - SLC Max",
 				le64_to_cpu(nand_stats_v3->user_data_erase_counts[1]));
-		json_object_add_value_uint(root, "User Data Erase Counts - TLC Min",
+		json_object_add_value_uint64(root, "User Data Erase Counts - TLC Min",
 				le64_to_cpu(nand_stats_v3->user_data_erase_counts[2]));
-		json_object_add_value_uint(root, "User Data Erase Counts - TLC Max",
+		json_object_add_value_uint64(root, "User Data Erase Counts - TLC Max",
 				le64_to_cpu(nand_stats_v3->user_data_erase_counts[3]));
 		temp_ptr = (__u64 *)nand_stats_v3->program_fail_count;
 		temp_norm = (__u16)(*temp_ptr & 0x000000000000FFFF);
 		temp_raw = ((*temp_ptr & 0xFFFFFFFFFFFF0000) >> 16);
 		json_object_add_value_uint(root, "Program Fail Count - Normalized",
 				le16_to_cpu(temp_norm));
-		json_object_add_value_uint(root, "Program Fail Count - Raw",
+		json_object_add_value_uint64(root, "Program Fail Count - Raw",
 				le64_to_cpu(temp_raw));
 		temp_ptr = (__u64 *)nand_stats_v3->erase_fail_count;
 		temp_norm = (__u16)(*temp_ptr & 0x000000000000FFFF);
 		temp_raw = ((*temp_ptr & 0xFFFFFFFFFFFF0000) >> 16);
 		json_object_add_value_uint(root, "Erase Fail Count - Normalized",
 				le16_to_cpu(temp_norm));
-		json_object_add_value_uint(root, "Erase Fail Count - Raw",
+		json_object_add_value_uint64(root, "Erase Fail Count - Raw",
 				le64_to_cpu(temp_raw));
 		json_object_add_value_uint(root, "PCIe Correctable Error Count",
 				le16_to_cpu(nand_stats_v3->correctable_error_count));
 		json_object_add_value_uint(root, "% Free Blocks (User)",
 				nand_stats_v3->percent_free_blocks_user);
-		json_object_add_value_uint(root, "Security Version Number",
+		json_object_add_value_uint64(root, "Security Version Number",
 				le64_to_cpu(nand_stats_v3->security_version_number));
 		json_object_add_value_uint(root, "% Free Blocks (System)",
 				nand_stats_v3->percent_free_blocks_system);
 		json_object_add_value_float(root, "Data Set Management Commands",
 				int128_to_double(nand_stats_v3->trim_completions));
-		json_object_add_value_uint(root, "Estimate of Incomplete Trim Data",
+		json_object_add_value_uint64(root, "Estimate of Incomplete Trim Data",
 				le64_to_cpu(nand_stats_v3->trim_completions[16]));
 		json_object_add_value_uint(root, "%% of completed trim",
 				nand_stats_v3->trim_completions[24]);
 		json_object_add_value_uint(root, "Background Back-Pressure-Guage",
 				nand_stats_v3->back_pressure_guage);
-		json_object_add_value_uint(root, "Soft ECC Error Count",
+		json_object_add_value_uint64(root, "Soft ECC Error Count",
 				le64_to_cpu(nand_stats_v3->soft_ecc_error_count));
-		json_object_add_value_uint(root, "Refresh Count",
+		json_object_add_value_uint64(root, "Refresh Count",
 				le64_to_cpu(nand_stats_v3->refresh_count));
 		temp_ptr = (__u64 *)nand_stats_v3->bad_sys_nand_block_count;
 		temp_norm = (__u16)(*temp_ptr & 0x000000000000FFFF);
 		temp_raw = ((*temp_ptr & 0xFFFFFFFFFFFF0000) >> 16);
 		json_object_add_value_uint(root, "Bad System Nand Block Count - Normalized",
 				le16_to_cpu(temp_norm));
-		json_object_add_value_uint(root, "Bad System Nand Block Count - Raw",
+		json_object_add_value_uint64(root, "Bad System Nand Block Count - Raw",
 				le64_to_cpu(temp_raw));
 		json_object_add_value_float(root, "Endurance Estimate",
 				int128_to_double(nand_stats_v3->endurance_estimate));
@@ -7716,7 +8573,7 @@ static void wdc_print_nand_stats_json(__u16 version, void *data)
 				nand_stats_v3->thermal_throttling_st_ct[0]);
 		json_object_add_value_uint(root, "Thermal Throttling Count",
 				nand_stats_v3->thermal_throttling_st_ct[1]);
-		json_object_add_value_uint(root, "Unaligned I/O",
+		json_object_add_value_uint64(root, "Unaligned I/O",
 				le64_to_cpu(nand_stats_v3->unaligned_IO));
 		json_object_add_value_float(root, "Physical Media Units Read",
 				int128_to_double(nand_stats_v3->physical_media_units));
@@ -7780,38 +8637,38 @@ static void wdc_print_pcie_stats_json(struct wdc_vs_pcie_stats *pcie_stats)
 	struct json_object *root;
 	root = json_create_object();
 
-	json_object_add_value_uint(root, "Unsupported Request Error Counter",
+	json_object_add_value_uint64(root, "Unsupported Request Error Counter",
 			le64_to_cpu(pcie_stats->unsupportedRequestErrorCount));
-	json_object_add_value_uint(root, "ECRC Error Status Counter",
+	json_object_add_value_uint64(root, "ECRC Error Status Counter",
 			le64_to_cpu(pcie_stats->ecrcErrorStatusCount));
-	json_object_add_value_uint(root, "Malformed TLP Status Counter",
+	json_object_add_value_uint64(root, "Malformed TLP Status Counter",
 			le64_to_cpu(pcie_stats->malformedTlpStatusCount));
 
-	json_object_add_value_uint(root, "Receiver Overflow Status Counter",
+	json_object_add_value_uint64(root, "Receiver Overflow Status Counter",
 			le64_to_cpu(pcie_stats->receiverOverflowStatusCount));
-	json_object_add_value_uint(root, "Unexpected Completion Status Counter",
+	json_object_add_value_uint64(root, "Unexpected Completion Status Counter",
 			le64_to_cpu(pcie_stats->unexpectedCmpltnStatusCount));
-	json_object_add_value_uint(root, "Complete Abort Status Counter",
+	json_object_add_value_uint64(root, "Complete Abort Status Counter",
 			le64_to_cpu(pcie_stats->completeAbortStatusCount));
-	json_object_add_value_uint(root, "Completion Timeout Status Counter",
+	json_object_add_value_uint64(root, "Completion Timeout Status Counter",
 			le64_to_cpu(pcie_stats->cmpltnTimoutStatusCount));
-	json_object_add_value_uint(root, "Flow Control Error Status Counter",
+	json_object_add_value_uint64(root, "Flow Control Error Status Counter",
 			le64_to_cpu(pcie_stats->flowControlErrorStatusCount));
-	json_object_add_value_uint(root, "Poisoned TLP Status Counter",
+	json_object_add_value_uint64(root, "Poisoned TLP Status Counter",
 			le64_to_cpu(pcie_stats->poisonedTlpStatusCount));
-	json_object_add_value_uint(root, "Dlink Protocol Error Status Counter",
+	json_object_add_value_uint64(root, "Dlink Protocol Error Status Counter",
 			le64_to_cpu(pcie_stats->dLinkPrtclErrorStatusCount));
-	json_object_add_value_uint(root, "Advisory Non Fatal Error Status Counter",
+	json_object_add_value_uint64(root, "Advisory Non Fatal Error Status Counter",
 			le64_to_cpu(pcie_stats->advsryNFatalErrStatusCount));
-	json_object_add_value_uint(root, "Replay Timer TO Status Counter",
+	json_object_add_value_uint64(root, "Replay Timer TO Status Counter",
 			le64_to_cpu(pcie_stats->replayTimerToStatusCount));
-	json_object_add_value_uint(root, "Replay Number Rollover Status Counter",
+	json_object_add_value_uint64(root, "Replay Number Rollover Status Counter",
 			le64_to_cpu(pcie_stats->replayNumRolloverStCount));
-	json_object_add_value_uint(root, "Bad DLLP Status Counter",
+	json_object_add_value_uint64(root, "Bad DLLP Status Counter",
 			le64_to_cpu(pcie_stats->badDllpStatusCount));
-	json_object_add_value_uint(root, "Bad TLP Status Counter",
+	json_object_add_value_uint64(root, "Bad TLP Status Counter",
 			le64_to_cpu(pcie_stats->badTlpStatusCount));
-	json_object_add_value_uint(root, "Receiver Error Status Counter",
+	json_object_add_value_uint64(root, "Receiver Error Status Counter",
 			le64_to_cpu(pcie_stats->receiverErrStatusCount));
 
 	json_print_object(root, NULL);
@@ -7833,8 +8690,8 @@ static int wdc_do_vs_nand_stats(int fd, char *format)
 		goto out;
 	}
 
-	ret = nvme_get_log(fd, 0xFFFFFFFF, WDC_NVME_NAND_STATS_LOG_ID,
-			   false, NVME_NO_LOG_LSP, WDC_NVME_NAND_STATS_SIZE, (void*)output);
+	ret = nvme_get_log_simple(fd, WDC_NVME_NAND_STATS_LOG_ID,
+			   WDC_NVME_NAND_STATS_SIZE, (void*)output);
 	if (ret) {
 		fprintf(stderr, "ERROR : WDC : %s : Failed to retreive NAND stats\n", __func__);
 		goto out;
@@ -7871,6 +8728,7 @@ static int wdc_vs_nand_stats(int argc, char **argv, struct command *command,
 
 	int fd;
 	int ret = 0;
+	nvme_root_t r;
 	__u64 capabilities = 0;
 
 	struct config {
@@ -7890,7 +8748,8 @@ static int wdc_vs_nand_stats(int argc, char **argv, struct command *command,
 	if (fd < 0)
 		return fd;
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	r = nvme_scan(NULL);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 
 	if ((capabilities & WDC_DRIVE_CAP_NAND_STATS) == 0) {
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
@@ -7901,6 +8760,7 @@ static int wdc_vs_nand_stats(int argc, char **argv, struct command *command,
 			fprintf(stderr, "ERROR : WDC : Failure reading NAND statistics, ret = %d\n", ret);
 	}
 
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -7908,15 +8768,15 @@ static int wdc_do_vs_pcie_stats(int fd,
 		struct wdc_vs_pcie_stats *pcieStatsPtr)
 {
 	int ret;
-	struct nvme_admin_cmd admin_cmd;
+	struct nvme_passthru_cmd admin_cmd;
 	int pcie_stats_size = sizeof(struct wdc_vs_pcie_stats);
 
-	memset(&admin_cmd, 0, sizeof (struct nvme_admin_cmd));
+	memset(&admin_cmd, 0, sizeof (struct nvme_passthru_cmd));
 	admin_cmd.opcode = WDC_NVME_PCIE_STATS_OPCODE;
 	admin_cmd.addr = (__u64)(uintptr_t)pcieStatsPtr;
 	admin_cmd.data_len = pcie_stats_size;
 
-	ret = nvme_submit_admin_passthru(fd, &admin_cmd);
+	ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
 
 	return ret;
 }
@@ -7928,6 +8788,7 @@ static int wdc_vs_pcie_stats(int argc, char **argv, struct command *command,
 
 	int fd;
 	int ret = 0;
+	nvme_root_t r;
 	__u64 capabilities = 0;
 	int fmt = -1;
 	struct wdc_vs_pcie_stats *pcieStatsPtr = NULL;
@@ -7951,6 +8812,8 @@ static int wdc_vs_pcie_stats(int argc, char **argv, struct command *command,
 	if (fd < 0)
 		return fd;
 
+
+	r = nvme_scan(NULL);
 	fmt = validate_output_format(cfg.output_format);
 	if (fmt < 0) {
 		fprintf(stderr, "ERROR : WDC : invalid output format\n");
@@ -7967,7 +8830,7 @@ static int wdc_vs_pcie_stats(int argc, char **argv, struct command *command,
 
 	memset((void *)pcieStatsPtr, 0, pcie_stats_size);
 
-	capabilities = wdc_get_drive_capabilities(fd);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 
 	if ((capabilities & WDC_DRIVE_CAP_PCIE_STATS) == 0) {
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
@@ -7992,6 +8855,7 @@ static int wdc_vs_pcie_stats(int argc, char **argv, struct command *command,
 	nvme_free(pcieStatsPtr, huge);
 
 out:
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -7999,6 +8863,7 @@ static int wdc_vs_drive_info(int argc, char **argv,
 		struct command *command, struct plugin *plugin)
 {
 	const char *desc = "Send a vs-drive-info command.";
+	nvme_root_t r;
 	uint64_t capabilities = 0;
 	int fd, ret;
 	__le32 result;
@@ -8043,8 +8908,9 @@ static int wdc_vs_drive_info(int argc, char **argv,
 		return ret;
 	}
 
-	wdc_check_device(fd);
-	capabilities = wdc_get_drive_capabilities(fd);
+	r = nvme_scan(NULL);
+	wdc_check_device(r, fd);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 	if ((capabilities & WDC_DRIVE_CAP_INFO) == WDC_DRIVE_CAP_INFO) {
 		ret = wdc_do_drive_info(fd, &result);
 
@@ -8097,11 +8963,13 @@ static int wdc_vs_drive_info(int argc, char **argv,
 		}
 	} else {
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
+		nvme_free_tree(r);
 		return -1;
 	}
 
 
-	fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+	nvme_show_status(ret);
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -8111,6 +8979,7 @@ static int wdc_vs_temperature_stats(int argc, char **argv,
 	const char *desc = "Send a vs-temperature-stats command.";
 	struct nvme_smart_log smart_log;
 	struct nvme_id_ctrl id_ctrl;
+	nvme_root_t r;
 	uint64_t capabilities = 0;
     	__u32 hctm_tmt;
 	int fd, ret;
@@ -8134,6 +9003,7 @@ static int wdc_vs_temperature_stats(int argc, char **argv,
 	if (fd < 0)
 		return fd;
 
+	r = nvme_scan(NULL);
 	fmt = validate_output_format(cfg.output_format);
 	if (fmt < 0) {
 		fprintf(stderr, "ERROR : WDC : invalid output format\n");
@@ -8142,10 +9012,11 @@ static int wdc_vs_temperature_stats(int argc, char **argv,
 	}
 
 	/* check if command is supported */
-	wdc_check_device(fd);
-	capabilities = wdc_get_drive_capabilities(fd);
+	wdc_check_device(r, fd);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 	if ((capabilities & WDC_DRIVE_CAP_TEMP_STATS) != WDC_DRIVE_CAP_TEMP_STATS) {
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
+		nvme_free_tree(r);
 		return -1;
 	} 
 
@@ -8153,7 +9024,7 @@ static int wdc_vs_temperature_stats(int argc, char **argv,
 	ret = nvme_identify_ctrl(fd, &id_ctrl);
    	if (ret != 0)
 		goto END;
-	ret = nvme_smart_log(fd, NVME_NSID_ALL, &smart_log);
+	ret = nvme_get_log_smart(fd, NVME_NSID_ALL, false, &smart_log);
 	if (ret != 0)
 		goto END;
 
@@ -8161,7 +9032,7 @@ static int wdc_vs_temperature_stats(int argc, char **argv,
 	temperature = ((smart_log.temperature[1] << 8) | smart_log.temperature[0]) - 273;
 
 	/* retrieve HCTM Thermal Management Temperatures */
-	nvme_get_feature(fd, 0, 0x10, 0, 0, 0, 0, 0, &hctm_tmt);
+	nvme_get_features_simple(fd, 0x10, 0, &hctm_tmt);
    	temp_tmt1 = ((hctm_tmt >> 16) & 0xffff) ? ((hctm_tmt >> 16) & 0xffff) - 273 : 0;
    	temp_tmt2 = (hctm_tmt & 0xffff) ? (hctm_tmt & 0xffff) - 273 : 0;
 
@@ -8213,7 +9084,8 @@ static int wdc_vs_temperature_stats(int argc, char **argv,
    	   	printf("%s: Invalid format\n", __func__);
 
 END:
-	fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+	nvme_show_status(ret);
+	nvme_free_tree(r);
 	return ret;
 }
 
@@ -8221,6 +9093,7 @@ static int wdc_capabilities(int argc, char **argv,
         struct command *command, struct plugin *plugin) 
 {
     const char *desc = "Send a capabilities command.";
+    nvme_root_t r;
     uint64_t capabilities = 0;
     int fd;
 
@@ -8234,8 +9107,9 @@ static int wdc_capabilities(int argc, char **argv,
         return fd;
 
     /* get capabilities */
-    wdc_check_device(fd);
-    capabilities = wdc_get_drive_capabilities(fd);
+    r = nvme_scan(NULL);
+    wdc_check_device(r, fd);
+    capabilities = wdc_get_drive_capabilities(r, fd);
 
     /* print command and supported status */
     printf("WDC Plugin Capabilities for NVME device:%s\n", devicename);
@@ -8298,29 +9172,37 @@ static int wdc_capabilities(int argc, char **argv,
             capabilities & WDC_DRIVE_CAP_CLOUD_SSD_VERSION ? "Supported" : "Not Supported");
     printf("vs-pcie-stats                 : %s\n",
             capabilities & WDC_DRIVE_CAP_PCIE_STATS ? "Supported" : "Not Supported");
+    printf("get-error-recovery-log        : %s\n",
+            capabilities & WDC_DRIVE_CAP_OCP_C1_LOG_PAGE ? "Supported" : "Not Supported");
+    printf("get-dev-capabilities-log      : %s\n",
+            capabilities & WDC_DRIVE_CAP_OCP_C4_LOG_PAGE ? "Supported" : "Not Supported");
+    printf("get-unsupported-reqs-log      : %s\n",
+            capabilities & WDC_DRIVE_CAP_OCP_C5_LOG_PAGE ? "Supported" : "Not Supported");
     printf("capabilities                  : Supported\n");
+    nvme_free_tree(r);
     return 0;
 }
 
 static int wdc_cloud_ssd_plugin_version(int argc, char **argv,
         struct command *command, struct plugin *plugin)
 {
-    const char *desc = "Get Cloud SSD Plugin Version command.";
-    uint64_t capabilities = 0;
-    int fd;
+	const char *desc = "Get Cloud SSD Plugin Version command.";
+	nvme_root_t r;
+	uint64_t capabilities = 0;
+	int fd;
 
-    OPT_ARGS(opts) =
-    {
-        OPT_END()
-    };
+	OPT_ARGS(opts) = {
+		OPT_END()
+	};
 
-    fd = parse_and_open(argc, argv, desc, opts);
-    if (fd < 0)
-        return fd;
+	fd = parse_and_open(argc, argv, desc, opts);
+	if (fd < 0)
+		return fd;
 
-    /* get capabilities */
-    wdc_check_device(fd);
-    capabilities = wdc_get_drive_capabilities(fd);
+	/* get capabilities */
+	r = nvme_scan(NULL);
+	wdc_check_device(r, fd);
+	capabilities = wdc_get_drive_capabilities(r, fd);
 
 	if ((capabilities & WDC_DRIVE_CAP_CLOUD_SSD_VERSION) == WDC_DRIVE_CAP_CLOUD_SSD_VERSION) {
 	    /* print command and supported status */
@@ -8329,7 +9211,8 @@ static int wdc_cloud_ssd_plugin_version(int argc, char **argv,
 		fprintf(stderr, "ERROR : WDC: unsupported device for this command\n");
 	}
 
-    return 0;
+	nvme_free_tree(r);
+	return 0;
 }
 
 static int wdc_enc_get_log(int argc, char **argv, struct command *command,
@@ -8421,7 +9304,7 @@ static int wdc_enc_get_log(int argc, char **argv, struct command *command,
 closed_fd:
 	close(fd);
 ret:
-	return nvme_status_to_errno(err, false);
+	return err;
 }
 
 static int wdc_enc_submit_move_data(int fd, char *cmd, int len, int xfer_size, FILE *out, int log_id, int cdw14, int cdw15)
@@ -8442,7 +9325,7 @@ static int wdc_enc_submit_move_data(int fd, char *cmd, int len, int xfer_size, F
 	cmd = (len) ? cmd : buf;
 	len = (len) ? len : 0x20;
 
-	struct nvme_admin_cmd nvme_cmd = {
+	struct nvme_passthru_cmd nvme_cmd = {
 		.opcode     = WDC_NVME_ADMIN_ENC_MGMT_SND,
 		.nsid       = 0,
 		.addr       = (__u64)(uintptr_t) cmd,
@@ -8475,14 +9358,14 @@ static int wdc_enc_submit_move_data(int fd, char *cmd, int len, int xfer_size, F
 		d);
 #endif
 	nvme_cmd.result = 0;
-	err = nvme_submit_passthru(fd, NVME_IOCTL_ADMIN_CMD, &nvme_cmd);
+	err = nvme_submit_admin_passthru(fd, &nvme_cmd, NULL);
 	if (err == NVME_SC_INTERNAL) {
 		fprintf(stderr, "%s: WARNING : WDC : No log ID:x%x available\n",
 			__func__, log_id);
 	}
 	else if (err != 0) {
-		fprintf(stderr, "%s: ERROR : WDC : NVMe Snd Mgmt Status:%s(x%x)\n",
-			__func__, nvme_status_to_string(err), err );
+		fprintf(stderr, "%s: ERROR : WDC : NVMe Snd Mgmt\n", __func__);
+		nvme_show_status(err);
 	} else {
 		if (nvme_cmd.result == WDC_RESULT_NOT_AVAILABLE)
 		{
@@ -8503,11 +9386,11 @@ static int wdc_enc_submit_move_data(int fd, char *cmd, int len, int xfer_size, F
 			nvme_cmd.cdw14 = cdw14;
 			nvme_cmd.cdw15 = cdw15;
 			nvme_cmd.result = 0;  /* returned result !=0 indicates more data available */
-			err = nvme_submit_passthru(fd, NVME_IOCTL_ADMIN_CMD, &nvme_cmd);
+			err = nvme_submit_admin_passthru(fd, &nvme_cmd, NULL);
 			if (err != 0) {
 				more = 0;
-				fprintf(stderr, "%s: ERROR : WDC : NVMe Rcv Mgmt Status:%s(x%x)\n",
-					__func__, nvme_status_to_string(err), err);
+				fprintf(stderr, "%s: ERROR : WDC : NVMe Rcv Mgmt ", __func__);
+				nvme_show_status(err);
 			} else {
 				more = nvme_cmd.result & WDC_RESULT_MORE_DATA;
 				response_size = nvme_cmd.result & ~WDC_RESULT_MORE_DATA;
@@ -8529,8 +9412,8 @@ static int wdc_enc_get_nic_log(int fd, __u8 log_id, __u32 xfer_size, __u32 data_
 {
 	__u8 *dump_data;
 	__u32 curr_data_offset, curr_data_len;
-	int i, ret;
-	struct nvme_admin_cmd admin_cmd;
+	int i, ret = -1;
+	struct nvme_passthru_cmd admin_cmd;
 	__u32 dump_length = data_len;
 	__u32 numd;
 	__u16 numdu, numdl;
@@ -8541,7 +9424,7 @@ static int wdc_enc_get_nic_log(int fd, __u8 log_id, __u32 xfer_size, __u32 data_
 		return -1;
 	}
 	memset(dump_data, 0, sizeof (__u8) * dump_length);
-	memset(&admin_cmd, 0, sizeof (struct nvme_admin_cmd));
+	memset(&admin_cmd, 0, sizeof (struct nvme_passthru_cmd));
 	curr_data_offset = 0;
 	curr_data_len = xfer_size;
 	i = 0;
@@ -8560,9 +9443,9 @@ static int wdc_enc_get_nic_log(int fd, __u8 log_id, __u32 xfer_size, __u32 data_
 #ifdef WDC_NVME_CLI_DEBUG
 		fprintf(stderr, "nsid 0x%08x addr 0x%08llx, data_len 0x%08x, cdw10 0x%08x, cdw11 0x%08x, cdw12 0x%08x, cdw13 0x%08x, cdw14 0x%08x \n", admin_cmd.nsid, admin_cmd.addr, admin_cmd.data_len, admin_cmd.cdw10, admin_cmd.cdw11, admin_cmd.cdw12, admin_cmd.cdw13, admin_cmd.cdw14);
 #endif
-		ret = nvme_submit_admin_passthru(fd, &admin_cmd);
-		if (ret !=0 ) {
-			fprintf(stderr, "%s: ERROR : WDC : NVMe Status:%s(%x)\n",__func__, nvme_status_to_string(ret), ret);
+		ret = nvme_submit_admin_passthru(fd, &admin_cmd, NULL);
+		if (ret != 0) {
+			nvme_show_status(ret);
 			fprintf(stderr, "%s: ERROR : WDC : Get chunk %d, size = 0x%x, offset = 0x%x, addr = 0x%lx\n",
 				 __func__, i, admin_cmd.data_len, curr_data_offset, (long unsigned int)admin_cmd.addr);
 			break;