> Steven Stallion wrote: >> Ouch, good catch! I just double checked the spec, and you are completely >> right, even though LAS powers high on the 8029, it must be set to zero >> effectively forcing you to use the 16-bit DMA configuration. >> >> Looks like I'll have to rework DMA ;) >> > > If the primary target for this is for emulated devices (i.e. QEMU, > Parallels) it may be simpler to skip DMA altogether. (It isn't clear to > me that emulated DMA offers a performance win in those situations -- if > it does, I'd expect it to be quite minimal. But then again, I'm not > sure how painful the logic behind emulated PIO is either.)
Considering that the 8029 has a number of extended features not included in the DP8390 spec (i.e. fdx, flow control, etc.) does it make sense to scrap generic support for NE2000 devices and develop specifically for the 8029? (i.e. renbrand ne as re) ? _______________________________________________ driver-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/driver-discuss
