Using Intel IPs into our custom IP design

Hi ​KYeoh

I am creating a custom module .. This module will be further added as an ip in the larger SOC design(Created in QSYS, platform designer). Now I want to add in the custom module an IP(FIFO; ie DCFIFO WITH MIXED CLOCK) generated in from QUARTUS IP catalog(DCFIFO is not available in QSYS IP catalog). So for this what are the files needed while I manually add this IP to my custom module . I would like to add all the submodules of FIFO along with it and therefore where can I find them ?.

Hope you are clear with my question

best Regards,

Athira