Add support for filtering IRQ affinity to CPUs on a specific NUMA node via the new IRQAffinityNUMA= option in .link files. The option accepts: - "local": use the NUMA node local to the NIC's PCIe slot - Explicit node number (0, 1, 2, ...): use CPUs on the specified node When both IRQAffinity= and IRQAffinityNUMA= are specified, their intersection is used. If the intersection is empty, an error is logged and IRQ affinity configuration is skipped. When "local" is specified but the device's NUMA node cannot be determined (numa_node shows -1), a warning is logged and IRQ affinity configuration is skipped.
System and Service Manager
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