On 2013-04-24 14:41, Kai Bollue wrote: > On 24.04.2013 09:49, Jan Kiszka wrote: >> Yep, that's it, thank you very much. >> >> Does the rt_8139too driver support pre-mapping? >> Nope, only the two I mentioned (simply because they are more common on >> platforms that have >4G and/or an IOMMU). But - wait - the 8139too has a >> fixed DMA window (due to some older chips) and therefore does copying >> to/from a pre-allocated bounce buffer on its own. That makes it work >> with IOMMUs as well. > > OK, this means that cards using the RTL 8139 are currently the only > non-Intel cards that work correctly with RTnet and > 4 GB of RAM, right? > Maybe this information should be put somewhere googleable, as modern > systems tend to have much RAM - and often still PCI slots.
True. There is an RTnet-related section on the Xenomai Wiki, and I'm always open for patches against the in-tree doc of RTnet. Jan -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 263 bytes Desc: OpenPGP digital signature URL: <http://www.xenomai.org/pipermail/xenomai/attachments/20130425/a61ed1a5/attachment.pgp> _______________________________________________ Xenomai mailing list [email protected] http://www.xenomai.org/mailman/listinfo/xenomai
