Hi,
The current support for allocating interrupt sets requires that same 'max_vec'
and 'min_vec' is passed to pci_alloc_irq_vectors_affinity(), then driver has to
try to allocate again and again until it succeeds.
This patch introduces .setup_affinity callback, and we can use it to
re-caculate interrupt sets and build affinity for each set after
irq vectors are allocated.
Turns out both genirq/affinity and nvme code get simplified a lot.
Please review and comment!
Ming Lei (5):
genirq/affinity: move allocation of 'node_to_cpumask' to
irq_build_affinity_masks
genirq/affinity: allow driver to setup managed IRQ's affinity
genirq/affinity: introduce irq_build_affinity()
nvme-pci: simplify nvme_setup_irqs() via .setup_affinity callback
genirq/affinity: remove support for allocating interrupt sets
drivers/nvme/host/pci.c | 97 +++++++++++++++++++++--------------------
drivers/pci/msi.c | 14 ------
include/linux/interrupt.h | 42 ++++++++++++------
kernel/irq/affinity.c | 108 ++++++++++++++++++++++++----------------------
4 files changed, 133 insertions(+), 128 deletions(-)
--
2.9.5
