Is asynchronous read supported (read-write)
Capability flags, that the kernel supports
Kernel congestion threshold parameter
Maximum number of backgrounded requests
Maximum readahead
Maximum size of the write buffer
Major version of the protocol (read-only)
Minor version of the protocol (read-only)
For future use.
Capability flags, that the filesystem wants to enable
Connection information, passed to the ->init() method
Some of the elements are read-write, these can be changed to indicate the value requested by the filesystem. The requested value must usually be smaller than the indicated value.