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Issue: Observed that VM interrupts continuously fired if previous NAPI schedule not able to complete the poll function. This case observed more frequently if Tx coalescing enabled. Fix: Disable VM interrupts whether NAPI scheduled or not. Also uses IRQ-OFF variant for NAPI schedule since IRQ's already masked. Bug 200722499 Change-Id: If6fb694c43a1c11efb4f4b881b9fb08dec834917 Signed-off-by: Bhadram Varka <vbhadram@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2537503 Reviewed-by: Rakesh Goyal <rgoyal@nvidia.com> Reviewed-by: Narayan Reddy <narayanr@nvidia.com>