On Mon, Aug 20, 2018 at 01:54:20PM -0700, Sagi Grimberg wrote: > nvme-rdma attempts to map queues based on irq vector affinity. > However, for some devices, completion vector irq affinity is > configurable by the user which can break the existing assumption > that irq vectors are optimally arranged over the host cpu cores. IFF affinity is configurable we should never use this code, as it breaks the model entirely. ib_get_vector_affinity should never return a valid mask if affinity is configurable.