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mlx5: fix mlx5_get_vector_affinity to start from completion vector 0 

The consumers of this routine expects the affinity map of of vector
index relative to the first completion vector. The upper layers are
not aware of internal/private completion vectors that mlx5 allocates
for its own usage.

Hence, return the affinity map of vector index relative to the first
completion vector.

Fixes: 05e0cc84e0 ("net/mlx5: Fix get vector affinity helper function")
Reported-by: Logan Gunthorpe <logang@deltatee.com>
Tested-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Cc: <stable@vger.kernel.org> # v4.15
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Sagi Grimberg 2018-02-05 16:24:52 +02:00 committed by Doug Ledford
parent 8b9b8d143b
commit 2572cf57d7
1 changed files with 1 additions and 1 deletions
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2
include/linux/mlx5/driver.h
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@ -1277,7 +1277,7 @@ mlx5_get_vector_affinity(struct mlx5_core_dev *dev, int vector)
int eqn; int eqn;
int err; int err;
err = mlx5_vector2eqn(dev, vector, &eqn, &irq); err = mlx5_vector2eqn(dev, MLX5_EQ_VEC_COMP_BASE + vector, &eqn, &irq);
if (err) if (err)
return NULL; return NULL;