NAME¶

libnvme_get_log_dynamic_chunk - Get log page data with dynamic chunk size

SYNOPSIS¶

int libnvme_get_log_dynamic_chunk (struct libnvme_transport_handle *hdl , struct libnvme_passthru_cmd *cmd , bool rae , __u32 xfer_len );

ARGUMENTS¶

hdl

Transport handle

cmd

Passthru command

rae

Retain asynchronous events

xfer_len

Initial max log transfer size per request to split the total. Dynamically divide chunk size by 2 when any error is encountered, and retry until the chunk size is down to 4k or the command succeeds. This allows for successful retrieval of log pages that may have a smaller maximum transfer size than the controller's MDTS value, without requiring the caller to know the optimal chunk size in advance.

RETURN¶

0 on success, the nvme command status if a response was received (see enum nvme_status_field) or a negative error otherwise.