ioctl: Add identify ioctl for CNS 09h, 0Ah

09h - Identify Namespace data structure for the specified
      User Data Format index containing the namespace capabilities
      for the NVM Command Set.
0Ah - I/O Command Set specific Identify Namespace data structure
      for the specified User Data Format index containing
      the namespace capabilities for the I/O Command Set
      specified in the CSI field.

Signed-off-by: Steven Seungcheol Lee <[email protected]>

Author: sc108-lee

src/libnvme.map

@@ -156,6 +156,8 @@ LIBNVME_1_0 {
 		nvme_identify_domain_list;
 		nvme_identify_endurance_group_list;
 		nvme_identify_independent_identify_ns;
+		nvme_identify_ns_csi_user_data_format;
+		nvme_identify_iocs_ns_csi_user_data_format;
 		nvme_identify_iocs;
 		nvme_identify_ns;
 		nvme_identify_ns_descs;

src/nvme/ioctl.h

@@ -949,6 +949,75 @@ static inline int nvme_identify_independent_identify_ns(int fd, __u32 nsid,
 	return nvme_identify(&args);
 }
 
+/**
+ * nvme_identify_ns_csi_user_data_format() -
+ * @fd:		File descriptor of nvme device
+ * @user_data_format: Return namespaces capability of identifier
+ * @uuidx:	UUID selection, if supported
+ * @csi:	Command Set Identifier
+ *
+ * Identify Namespace data structure for the specified User Data Format
+ * index containing the namespace capabilities for the NVM Command Set.
+ *
+ * Return: The nvme command status if a response was received (see
+ * &enum nvme_status_field) or -1 with errno set otherwise.
+ */
+static inline int nvme_identify_ns_csi_user_data_format(int fd,
+			__u16 user_data_format, __u8 uuidx,
+			enum nvme_csi csi, void *data)
+{
+	struct nvme_identify_args args = {
+		.result = NULL,
+		.data = data,
+		.args_size = sizeof(args),
+		.fd = fd,
+		.timeout = NVME_DEFAULT_IOCTL_TIMEOUT,
+		.cns = NVME_IDENTIFY_CNS_NS_USER_DATA_FORMAT,
+		.csi = csi,
+		.nsid = NVME_NSID_NONE,
+		.cntid = NVME_CNTLID_NONE,
+		.cns_specific_id = user_data_format,
+		.uuidx = uuidx,
+	};
+
+	return nvme_identify(&args);
+}
+
+/**
+ * nvme_identify_iocs_ns_csi_user_data_format() -
+ * @fd:		File descriptor of nvme device
+ * @user_data_format: Return namespaces capability of identifier
+ * @uuidx:	UUID selection, if supported
+ * @csi:	Command Set Identifier
+ *
+ * I/O Command Set specific Identify Namespace data structure for
+ * the specified User Data Format index containing the namespace
+ * capabilities for the I/O Command Set specified in the CSI field.
+ *
+ * Return: The nvme command status if a response was received (see
+ * &enum nvme_status_field) or -1 with errno set otherwise.
+ */
+static inline int nvme_identify_iocs_ns_csi_user_data_format(int fd,
+			__u16 user_data_format, __u8 uuidx,
+			enum nvme_csi csi, void *data)
+{
+	struct nvme_identify_args args = {
+		.result = NULL,
+		.data = data,
+		.args_size = sizeof(args),
+		.fd = fd,
+		.timeout = NVME_DEFAULT_IOCTL_TIMEOUT,
+		.cns = NVME_IDENTIFY_CNS_CSI_NS_USER_DATA_FORMAT,
+		.csi = csi,
+		.nsid = NVME_NSID_NONE,
+		.cntid = NVME_CNTLID_NONE,
+		.cns_specific_id = user_data_format,
+		.uuidx = uuidx,
+	};
+
+	return nvme_identify(&args);
+}
+
 /**
  * nvme_nvm_identify_ctrl() -
  * @fd:	File descriptor of nvme device

src/nvme/types.h

@@ -5802,6 +5802,8 @@ enum nvme_identify_cns {
 	NVME_IDENTIFY_CNS_CSI_CTRL				= 0x06,
 	NVME_IDENTIFY_CNS_CSI_NS_ACTIVE_LIST			= 0x07,
 	NVME_IDENTIFY_CNS_CSI_INDEPENDENT_ID_NS			= 0x08,
+	NVME_IDENTIFY_CNS_NS_USER_DATA_FORMAT			= 0x09,
+	NVME_IDENTIFY_CNS_CSI_NS_USER_DATA_FORMAT		= 0x0A,
 	NVME_IDENTIFY_CNS_ALLOCATED_NS_LIST			= 0x10,
 	NVME_IDENTIFY_CNS_ALLOCATED_NS				= 0x11,
 	NVME_IDENTIFY_CNS_NS_CTRL_LIST				= 0x12,