W dniu 25 lipca 2011 23:54 użytkownik Rafał Miłecki <[email protected]> napisał: > Now, the question: when for real we should use such a solution? > > Larry, could you check your driver? Can you see anything about this? > Is this maybe PCI (not PCIe!) specific?
I've checked thread "Interesting 14e4:4321". It seems both: 14e4:4321 and 14e4:4322 are using PCI slot and both are not working in DMA mode. I start believing it's PCI specific. If you take a look at current ssb code and defines: > if (ssb_read32(dev, SSB_TMSHIGH) & SSB_TMSHIGH_DMA64) > return SSB_PCIE_DMA_H32; > else > return SSB_PCI_DMA; You can see 0x80000000 (SSB_PCIE_DMA_H32) has actually "PCIE" in it's name. This can be true that 0x80000000 is *only* for *64-bit DMA* on *PCIe*. -- Rafał _______________________________________________ b43-dev mailing list [email protected] http://lists.infradead.org/mailman/listinfo/b43-dev
