Messages in this thread Patch in this message | | | From | Christoph Hellwig <> | Subject | [PATCH 1/8] device: Add irq affinity hint cpumask pointer | Date | Fri, 15 Apr 2016 18:35:45 -0700 |
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From: Thomas Gleixner <tglx@linutronix.de>
This optional cpumask will be used by the irq core code to optimize interrupt allocation and affinity setup for multiqueue devices.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- include/linux/device.h | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/include/linux/device.h b/include/linux/device.h index 002c597..0270103 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -741,6 +741,8 @@ struct device_dma_parameters { * @msi_list: Hosts MSI descriptors * @msi_domain: The generic MSI domain this device is using. * @numa_node: NUMA node this device is close to. + * @irq_affinity: Hint for irq affinities and descriptor allocation + * (optional). * @dma_mask: Dma mask (if dma'ble device). * @coherent_dma_mask: Like dma_mask, but for alloc_coherent mapping as not all * hardware supports 64-bit addresses for consistent allocations @@ -813,6 +815,8 @@ struct device { #ifdef CONFIG_NUMA int numa_node; /* NUMA node this device is close to */ #endif + + struct cpumask *irq_affinity; u64 *dma_mask; /* dma mask (if dma'able device) */ u64 coherent_dma_mask;/* Like dma_mask, but for alloc_coherent mappings as -- 2.1.4
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