On Fri, Sep 23, 2016 at 03:21:14PM -0700, Sagi Grimberg wrote: > Question: is using pci_alloc_irq_vectors() obligated for > supplying blk-mq with the device affinity mask?
No, but it's very useful. We'll need equivalents for other busses that provide multipl vectors and vector spreading. > If I do this completely-untested [1] what will happen? Everything will be crashing and burning because you call to_pci_dev on something that's not a PCI dev? For the next merge window I plan to wire up the affinity information for the RDMA code, and I will add a counterpart to blk_mq_pci_map_queues that spreads the queues over the completion vectors.
