Just like other interfaces, sis depends on mii_phy in order to configure it via config(8). Found out the hard way while building a custom kernel for my Soekris net4501.
In GENERIC, this missing dependency is shadowed by many other interfaces pulling in mii_phy in the first place. Index: files.pci =================================================================== RCS file: /cvs/openbsd/src/sys/dev/pci/files.pci,v retrieving revision 1.337 diff -u -p -u -p -r1.337 files.pci --- files.pci 29 Jul 2019 00:40:49 -0000 1.337 +++ files.pci 4 Aug 2019 15:21:47 -0000 @@ -448,7 +448,7 @@ attach sf at pci with sf_pci file dev/pci/if_sf_pci.c sf_pci # SiS 900/7016 ethernet -device sis: ether, ifnet, mii, ifmedia +device sis: ether, ifnet, mii, ifmedia, mii_phy attach sis at pci file dev/pci/if_sis.c sis
