Messages in this thread | | | From | Ming Lei <> | Subject | [PATCH 0/5] genirq/affinity: introduce .setup_affinity to support allocating interrupt sets | Date | Fri, 25 Jan 2019 17:53:42 +0800 |
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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
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