| Message ID | 20241115-refactor-blk-affinity-helpers-v5-2-c472afd84d9f@kernel.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | blk: refactor queue affinity helpers | expand |
On 15/11/2024 16:37, Daniel Wagner wrote: > struct bus_type has a new callback for retrieving the IRQ affinity for a > device. Hook this callback up for PCI based devices. > > Acked-by: Bjorn Helgaas<bhelgaas@google.com> > Reviewed-by: Christoph Hellwig<hch@lst.de> > Reviewed-by: Hannes Reinecke<hare@suse.de> > Reviewed-by: Ming Lei<ming.lei@redhat.com> > Signed-off-by: Daniel Wagner<wagi@kernel.org> > --- Reviewed-by: John Garry <john.g.garry@oracle.com>
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 35270172c833186995aebdda6f95ab3ffd7c67a0..a9cb0e3ad2e6eca58c34683303b1242228e96909 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -1670,6 +1670,19 @@ static void pci_dma_cleanup(struct device *dev) iommu_device_unuse_default_domain(dev); } +/** + * pci_device_irq_get_affinity - get IRQ affinity mask for device + * @dev: ptr to dev structure + * @irq_vec: interrupt vector number + * + * Return the CPU affinity mask for @dev and @irq_vec. + */ +static const struct cpumask *pci_device_irq_get_affinity(struct device *dev, + unsigned int irq_vec) +{ + return pci_irq_get_affinity(to_pci_dev(dev), irq_vec); +} + const struct bus_type pci_bus_type = { .name = "pci", .match = pci_bus_match, @@ -1677,6 +1690,7 @@ const struct bus_type pci_bus_type = { .probe = pci_device_probe, .remove = pci_device_remove, .shutdown = pci_device_shutdown, + .irq_get_affinity = pci_device_irq_get_affinity, .dev_groups = pci_dev_groups, .bus_groups = pci_bus_groups, .drv_groups = pci_drv_groups,