Here is a list of all documented struct and union fields with links to the struct/union documentation for each field:

• data : mars_workload_context
• reserved : mars_workload_context
• u16 : mars_callback_args , mars_task_args
• u32 : mars_task_args , mars_callback_args
• u64 : mars_callback_args , mars_task_args
• u8 : mars_task_args , mars_callback_args