nvme_get_telemetry_log(2) libnvme API manual nvme_get_telemetry_log(2)

nvme_get_telemetry_log - Get specified telemetry log

int nvme_get_telemetry_log (int fd , bool create , bool ctrl , bool rae , size_t max_data_tx , enum nvme_telemetry_da da , struct nvme_telemetry_log **log , size_t *size );

File descriptor of nvme device
Generate new host initated telemetry capture
Get controller Initiated log
Retain asynchronous events
Set the max data transfer size to be used retrieving telemetry.
Log page data area, valid values: enum nvme_telemetry_da.
On success, set to the value of the allocated and retrieved log.
Ptr to the telemetry log size, so it can be returned

The total size allocated can be calculated as: (nvme_telemetry_log da size + 1) * NVME_LOG_TELEM_BLOCK_SIZE.

The nvme command status if a response was received (see enum nvme_status_field) or -1 with errno set otherwise.

nvme_get_telemetry_log January 2025