+struct ib_cq *ib_find_get_cq(struct ib_device *dev, unsigned int nr_cqe, + enum ib_poll_context poll_ctx, int affinity_hint) +{ + struct ib_cq *cq, *found; + unsigned long flags; + int vector, ret; + + if (poll_ctx >= ARRAY_SIZE(dev->cq_pools)) + return ERR_PTR(-EINVAL); + + if (!ib_find_vector_affinity(dev, affinity_hint, &vector)) { + /* + * Couldn't find matching vector affinity so project + * the affinty to the device completion vector range + */ + vector = affinity_hint % dev->num_comp_vectors; + }So depending on whether or not the HCA driver implements .get_vector_affinity() either pci_irq_get_affinity() is used or "vector = affinity_hint % dev->num_comp_vectors"? Sorry but I think that kind of differences makes it unnecessarily hard for ULP maintainers to provide predictable performance and consistent behavior across HCAs.
Well, as a ULP maintainer I think that in the lack of .get_vector_affinity() I would do that same thing as this code. srp itself is doing the same thing in srp_create_target() -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
