ioctl: add nvme_get_log_dispersed_ns_participating_nss()

Since added the NVMe 2.1 log page.

Signed-off-by: Tokunori Ikegami <[email protected]>

Author: ikegami-t

src/nvme/ioctl.h

@@ -2135,6 +2135,24 @@ static inline int nvme_get_log_rotational_media_info(int fd, __u16 endgid, __u32
 	return nvme_get_endgid_log(fd, false, NVME_LOG_LID_ROTATIONAL_MEDIA_INFO, endgid, len, log);
 }
 
+/**
+ * nvme_get_log_dispersed_ns_participating_nss() - Retrieve Dispersed Namespace Participating NVM
+ * Subsystems Log
+ * @fd:		File descriptor of nvme device
+ * @nsid:	Namespace Identifier
+ * @len:	The allocated length of the log page
+ * @log:	User address to store the log page
+ *
+ * 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_dispersed_ns_participating_nss(int fd, __u32 nsid, __u32 len,
+	struct nvme_dispersed_ns_participating_nss_log *log)
+{
+	return nvme_get_nsid_log(fd, false, NVME_LOG_LID_DISPERSED_NS_PARTICIPATING_NSS, nsid, len,
+				 log);
+}
+
 /**
  * nvme_get_log_phy_rx_eom() - Retrieve Physical Interface Receiver Eye Opening Measurement Log
  * @fd:		File descriptor of nvme device

src/nvme/types.h

@@ -4789,6 +4789,21 @@ struct nvme_rotational_media_info_log {
 	__u8	rsvd24[488];
 };
 
+/**
+ * struct nvme_dispersed_ns_participating_nss_log - Dispersed Namespace Participating NVM Subsystems
+ * Log
+ * @genctr:		Generation Counter
+ * @numpsub:		Number of Participating NVM Subsystems
+ * @rsvd16:		Reserved
+ * @participating_nss:	Participating NVM Subsystem Entry
+ */
+struct nvme_dispersed_ns_participating_nss_log {
+	__le64	genctr;
+	__le64	numpsub;
+	__u8	rsvd16[240];
+	__u8	participating_nss[];
+};
+
 /**
  * struct nvme_eom_lane_desc - EOM Lane Descriptor
  * @rsvd0:	Reserved