Messages in this thread | | | Subject | Re: [PATCH net-next V6 2/2] net/mlx4_en: Use affinity hint | From | Eric Dumazet <> | Date | Sun, 01 Jun 2014 21:16:50 -0700 |
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On Sun, 2014-05-25 at 17:47 +0300, Amir Vadai wrote: > From: Yuval Atias <yuvala@mellanox.com> > > 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> > ---
CC [M] drivers/net/ethernet/mellanox/mlx4/en_netdev.o drivers/net/ethernet/mellanox/mlx4/en_netdev.c: In function ‘mlx4_en_init_affinity_hint’: drivers/net/ethernet/mellanox/mlx4/en_netdev.c:1546:23: error: incompatible types when assigning to type ‘cpumask_var_t’ from type ‘void *’ drivers/net/ethernet/mellanox/mlx4/en_netdev.c: In function ‘mlx4_en_free_affinity_hint’: drivers/net/ethernet/mellanox/mlx4/en_netdev.c:1553:41: error: incompatible types when assigning to type ‘cpumask_var_t’ from type ‘void *’
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