net/mlx5e: Add NAPI statistics
Add per-channel and global ethtool counters for NAPI. This helps us monitor and analyze performance in general. - ch[i]_poll: the number of times the channel's NAPI poll was invoked. - ch[i]_arm: the number of times the channel's NAPI poll completed and armed the completion queues. - ch[i]_aff_change: the number of times the channel's NAPI poll explicitly stopped execution on a cpu due to a change in affinity. Signed-off-by: NTariq Toukan <tariqt@mellanox.com> Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
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