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authorSagi Grimberg <sagi@grimberg.me>2017-07-13 11:09:40 +0300
committerDoug Ledford <dledford@redhat.com>2017-08-08 14:55:56 -0400
commita435393acafbf0ecff4deb3e3cb554b34f0d0664 (patch)
tree67f659fdbe734dd5adf0c3c995ddd72f827814f1 /include/linux/mlx5
parenta85e5474f4c783b252bf6b80571cdb2abb7d69d9 (diff)
downloadop-kernel-dev-a435393acafbf0ecff4deb3e3cb554b34f0d0664.zip
op-kernel-dev-a435393acafbf0ecff4deb3e3cb554b34f0d0664.tar.gz
mlx5: move affinity hints assignments to generic code
generic api takes care of spreading affinity similar to what mlx5 open coded (and even handles better asymmetric configurations). Ask the generic API to spread affinity for us, and feed him pre_vectors that do not participate in affinity settings (which is an improvement to what we had before). The affinity assignments should match what mlx5 tried to do earlier but now we do not set affinity to async, cmd and pages dedicated vectors. Also, remove mlx5e_get_cpu and introduce mlx5e_get_node (used for allocation purposes) and mlx5_get_vector_affinity (for indirection table construction) as they provide the needed information. Luckily, we have generic helpers to get cpumask and node given a irq vector. mlx5_get_vector_affinity will be used by mlx5_ib in a subsequent patch. Reviewed-by: Christoph Hellwig <hch@lst.de> Acked-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/linux/mlx5')
-rw-r--r--include/linux/mlx5/driver.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 5bac7f5..5797318 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -534,7 +534,6 @@ struct mlx5_core_sriov {
};
struct mlx5_irq_info {
- cpumask_var_t mask;
char name[MLX5_MAX_IRQ_NAME];
};
@@ -1184,4 +1183,10 @@ enum {
MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32,
};
+static inline const struct cpumask *
+mlx5_get_vector_affinity(struct mlx5_core_dev *dev, int vector)
+{
+ return pci_irq_get_affinity(dev->pdev, MLX5_EQ_VEC_COMP_BASE + vector);
+}
+
#endif /* MLX5_DRIVER_H */
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