NAME¶

nvme_get_telemetry_log - Get specified telemetry log

SYNOPSIS¶

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 );

ARGUMENTS¶

fd

File descriptor of nvme device

create

Generate new host initated telemetry capture

ctrl

Get controller Initiated log

rae

Retain asynchronous events

max_data_tx

Set the max data transfer size to be used retrieving telemetry.

da

Log page data area, valid values: enum nvme_telemetry_da.

log

On success, set to the value of the allocated and retrieved log.

size

Ptr to the telemetry log size, so it can be returned

DESCRIPTION¶

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

RETURN¶

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