https://docs.oracle.com/cd/E88353_01/html/E37855/ddi-umem-iosetup-9f.html
ddi_umem_iosetup - man pages section 9: DDI and DKI Kernel Functions
ddi_umem_iosetup - Setup I/O requests to application memory Solaris DDI specific (Solaris DDI)
man pagesddiumem