> I'm doing some work for Mellanox and we need some 100GBase types for > coming hardware products too.
> I think we are not using the 32-bits of "ifm_media" well enough. > Has it been discussed to add more bits to "IFM_NMASK" and have more > ethernet types like IFM_ETHER_0, IFM_ETHER_1, IFM_ETHER_2, IFM_ETHER_3 .... > Currently 5 IFM types are defined. If 2 more bits can be added to > IFM_NMASK we have 5 bits total giving us 2**5 = 32 IFM types. Then it > should be possible to define "(32 - 5) * 32 = 864" more ethernet types, > which I think should be enough for now - or we add even one more bit to > IFM_NMASK ? Did you have specific bits in mind? I'm fairly sure they are all assigned to something now. The adjacent bits are used for the subtype/variant and options. Most of the options are used, maybe not all. I haven't checked whether the "instance" field is still used, though. It was for MII PHY numbers, I believe. If we had more bits, it seems better to put them directly into the subtype field rather than the type field. Mike _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"