On 10/08/2014 02:57 PM, Tadeusz Struk wrote: > On 10/08/2014 11:35 AM, Prarit Bhargava wrote: >>> But then how do I know which node I'm physically connected to? >> The pci_dev maps to the bus which maps to a numa node. The pci_dev's numa value >> is copied directly from the bus (or busses depending on how deep it is). >> >> I'd argue (strongly) that the pci_dev's numa ID better be correct o/w that is a >> FW bug (and a bad one at that these days). >> >> dev_to_node() should return the correct value. > > I'm not saying that the dev_to_node() returns incorrect value. It will > always return the closest numa node for the given device. No that isn't correct. dev_to_node() will return the node the device is connected to. > What we want to enforce is that the closest numa node is the node that > the device is physically connected to. In case if the closest numa node > is the remote node we don't want to use this accelerator. > P. -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
