On Tue, Aug 11, 2009 at 11:23:48PM -0700, Roland Dreier wrote: > > Maybe I'm missing your point, but mlx4_table_find() does go to some > trouble to find the right DMA address for the object being looked up. > Of course it could be buggy but I still don't see why we would need a > list of DMA addresses when we know we are only going to sync part of one > page?
Is this is always true? What if you allocated an ICM buffer that uses none adjacent pages? In this case you would need more than one call to dma_sync_single_for_*(), isn't it? > > I think the right thing to do to fix this is to switch to using > map_single instead of map_sg, and then use dma_sync_single_range_for_xxx > to sync the subset we care about. > > - R. _______________________________________________ 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
