> I'm not sure that can work either. The PCI-X spec is very clear, you > must wait for a non-posted completion if you care about order. Doing a > config read in the driver as a surrogate flush is not good enough in > the general case. Like you say, a pci bridge is free to reorder all > in flight non-posted operations.
No, hang on. Nothing can reorder a dependent read to start after a write that it depends on, can it? So a config read of PCI_COMMAND can't start until the completion of a config write of the same register, right? - R. _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
