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User interrupts are MSIx interrupts coming from Gaudi2, that have specific range of IDs and are assigned to the sole use of the user process that opened the Gaudi2 device (reminder: there can be only a single user process running on Gaudi2 at any given time). The interrupts are allocated and managed by the driver and therefore, the user expects the driver to initialize them properly, which also includes setting the affinity to the related CPU cores of the device's NUMA node to get maximum performance. Signed-off-by: Dani Liberman <dliberman@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>