Merge pull request #157 from Arunpandian15/Media_Unit_Status_Log_Page

nvme: Add Media Unit Status log page(LID: 0x10)

Author: dwsuse

doc/libnvme.rst

@@ -921,6 +921,9 @@ otherwise.
 ``NVME_LOG_LID_ENDURANCE_GRP_EVT``
   *undescribed*
 
+``NVME_LOG_LID_MEDIA_UNIT_STATUS``
+  *undescribed*
+
 ``NVME_LOG_LID_DISCOVER``
   *undescribed*
 

doc/man/enum nvme_cmd_get_log_lid.2

@@ -64,6 +64,10 @@ enum nvme_cmd_get_log_lid {
 , 
 .br
 .br
+.BI "    NVME_LOG_LID_MEDIA_UNIT_STATUS"
+, 
+.br
+.br
 .BI "    NVME_LOG_LID_DISCOVER"
 , 
 .br
@@ -106,6 +110,8 @@ enum nvme_cmd_get_log_lid {
 -- undescribed --
 .IP "NVME_LOG_LID_ENDURANCE_GRP_EVT" 12
 -- undescribed --
+.IP "NVME_LOG_LID_MEDIA_UNIT_STATUS" 12
+-- undescribed --
 .IP "NVME_LOG_LID_DISCOVER" 12
 -- undescribed --
 .IP "NVME_LOG_LID_RESERVATION" 12

src/nvme/ioctl.h

@@ -1124,6 +1124,7 @@ static inline int nvme_zns_identify_ctrl(int fd, struct nvme_zns_id_ctrl *id)
  * @csi:	Command set identifier, see &enum nvme_csi for known values
  * @lsp:	Log specific field
  * @lsi:	Endurance group information
+ * @domid:	Domain Identifier selection, if supported
  * @uuidx:	UUID selection, if supported
  * @rae:	Retain asynchronous events
  * @ot:		Offset Type; if set @lpo specifies the index into the list
@@ -1143,6 +1144,7 @@ struct nvme_get_log_args {
 	enum nvme_csi csi;
 	__u16 lsi;
 	__u8 lsp;
+	__u16 domid;
 	__u8 uuidx;
 	bool rae;
 	bool ot;
@@ -1174,6 +1176,7 @@ static inline int nvme_get_nsid_log(int fd, bool rae,
 		.csi = NVME_CSI_NVM,
 		.lsi = NVME_LOG_LSI_NONE,
 		.lsp = NVME_LOG_LSP_NONE,
+		.domid = NVME_DOMID_NONE,
 		.uuidx = NVME_UUID_NONE,
 		.rae = false,
 		.ot = false,
@@ -1741,6 +1744,39 @@ static inline int nvme_get_log_discovery(int fd, bool rae,
 }
 
 
+/**
+ * nvme_get_log_media_unit_stat() -
+ * @fd:		File descriptor of nvme device
+ * @domid:	Domain Identifier selection, if supported
+ *
+ * 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_get_log_media_unit_stat(int fd, __u16 domid,
+			struct nvme_media_unit_stat_log *mus)
+{
+	struct nvme_get_log_args args = {
+		.args_size = sizeof(args),
+		.fd = fd,
+		.result = NULL,
+		.timeout = NVME_DEFAULT_IOCTL_TIMEOUT,
+		.lid = NVME_LOG_LID_MEDIA_UNIT_STATUS,
+		.lpo = 0,
+		.log = mus,
+		.len = sizeof(*mus),
+		.nsid = NVME_NSID_NONE,
+		.csi = NVME_CSI_NVM,
+		.lsi = NVME_LOG_LSI_NONE,
+		.lsp = NVME_LOG_LSP_NONE,
+		.domid = domid,
+		.uuidx = NVME_UUID_NONE,
+		.rae = false,
+		.ot = false,
+	};
+	return nvme_get_log(&args);
+}
+
+
 /**
  * nvme_get_log_reservation() -
  * @fd:		File descriptor of nvme device

src/nvme/types.h

@@ -3281,6 +3281,44 @@ struct nvme_boot_partition {
 	__u8	boot_partition_data[];
 };
 
+/**
+ * struct nvme_media_unit_stat_desc -
+ * @muid:         Media Unit Identifier
+ * @domainid:     Domain Identifier
+ * @endgid:       Endurance Group Identifier
+ * @nvmsetid:     NVM Set Identifier
+ * @cap_adj_fctr: Capacity Adjustment Factor
+ * @avl_spare:    Available Spare
+ * @percent_used: Percentage Used
+ * @mucs:         Number of Channels attached to media units
+ * @cio:          Channel Identifiers Offset
+ */
+struct nvme_media_unit_stat_desc {
+	__le16	muid;
+	__le16	domainid;
+	__le16	endgid;
+	__le16	nvmsetid;
+	__le16	cap_adj_fctr;
+	__u8	avl_spare;
+	__u8	percent_used;
+	__u8	mucs;
+	__u8	cio;
+};
+
+/**
+ * struct nvme_media_unit_stat_log -
+ * @nmu:        Number unit status descriptor
+ * @cchans:     Number of Channels
+ * @sel_config: Selected Configuration
+ */
+struct nvme_media_unit_stat_log {
+	__le16	nmu;
+	__le16	cchans;
+	__le16	sel_config;
+	__u8	rsvd6[10];
+	struct nvme_media_unit_stat_desc mus_desc[];
+};
+
 /**
  * struct nvme_resv_notification_log -
  * @lpc:
@@ -5346,6 +5384,7 @@ enum nvme_identify_cns {
  * @NVME_LOG_LID_PERSISTENT_EVENT:
  * @NVME_LOG_LID_LBA_STATUS:
  * @NVME_LOG_LID_ENDURANCE_GRP_EVT:
+ * @NVME_LOG_LID_MEDIA_UNIT_STATUS:
  * @NVME_LOG_LID_FID_SUPPORTED_EFFECTS:
  * @NVME_LOG_LID_BOOT_PARTITION:
  * @NVME_LOG_LID_DISCOVER:
@@ -5370,6 +5409,7 @@ enum nvme_cmd_get_log_lid {
 	NVME_LOG_LID_PERSISTENT_EVENT				= 0x0d,
 	NVME_LOG_LID_LBA_STATUS					= 0x0e,
 	NVME_LOG_LID_ENDURANCE_GRP_EVT				= 0x0f,
+	NVME_LOG_LID_MEDIA_UNIT_STATUS				= 0x10,
 	NVME_LOG_LID_FID_SUPPORTED_EFFECTS			= 0x12,
 	NVME_LOG_LID_BOOT_PARTITION				= 0x15,
 	NVME_LOG_LID_DISCOVER					= 0x70,