From 9e311e77a85e37b5caec3d64c3593cd52b2cdb71 Mon Sep 17 00:00:00 2001
From: Yuval Atias <yuvala@mellanox.com>
Date: Mon, 9 Jun 2014 10:24:39 +0300
Subject: [PATCH] net/mlx4_en: Use affinity hint
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The “affinity hint” mechanism is used by the user space
daemon, irqbalancer, to indicate a preferred CPU mask for irqs.
Irqbalancer can use this hint to balance the irqs between the
cpus indicated by the mask.

We wish the HCA to preferentially map the IRQs it uses to numa cores
close to it.  To accomplish this, we use cpumask_set_cpu_local_first(), that
sets the affinity hint according the following policy:
First it maps IRQs to “close” numa cores.  If these are exhausted, the
remaining IRQs are mapped to “far” numa cores.

Signed-off-by: Yuval Atias <yuvala@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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