> Quoting Roland Dreier <[EMAIL PROTECTED]>: > Subject: Re: [ofa-general] Re: mthca use of dma_sync_single is bogus > > > Hmm. This means there's no way to sync a range within > > mapping created with map_sg? > > It doesn't seem that there is one right now at least. > > > > It actually doesn't look too bad to replace our use of pci_map_sg() > > > with dma_map_single(), at least at first glance. I'll try to write a > > > patch later. > > > > Well, the reason map_sg is there is presumably because on some > > architectures it's worth it to try and make the region contigious in DMA > space. > > But I agree this seems the lesser evil at this point ... > > Given that we're already trying to allocate big chunks of physically > contiguous memory, I think that any virtual merging we get is likely > to be of very small benefit. > > It is kind of a shame to give this up though.
Did we reach any conclusion? Are you switching to map_single? -- MST _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
