On 2013-04-29 20:34, Kai Bollue wrote: > On 25.04.2013 18:16, Jan Kiszka wrote: >> 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. > > Maybe like this? > > diff --git a/README b/README > index b98e6fd..35e1cee 100644 > --- a/README > +++ b/README > @@ -26,6 +26,9 @@ What are the requirements? > e1000e), DEC 21x4x-based (tulip), AMD PCnet32/PCnetPCI, VIA Rhine, > NatSemi > DP8381x, RTL8169 network adapter, MPC8260 FCC, MPC8xx SCC/FEC, or > MPC5200 > on-chip controllers, SMSC LAN91C111 embedded controller, Intel 82575 > (igb) > +- CAUTION: On systems with > 4 GB RAM, currently only the following > chipsets > + will work: RealTek 8139, Intel PRO/1000 PCI-E (e1000e, NOT e1000), > + Intel 82575 (igb) > - For Ethernet-over-FireWire see rtfirewire.berlios.de > - For RT-WLAN: Ralink 2500 >
Looks ok. Can you send as full patch (subject, description, signed-off)? 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/20130429/7a687197/attachment.pgp> _______________________________________________ Xenomai mailing list [email protected] http://www.xenomai.org/mailman/listinfo/xenomai
