4.14-stable review patch. If anyone has any objections, please let me know.
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From: Sagi Grimberg sagi@grimberg.me
commit 2572cf57d75a7f91835d9a38771e9e76d575d122 upstream.
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: 05e0cc84e00c ("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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- include/linux/mlx5/driver.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -1201,7 +1201,7 @@ mlx5_get_vector_affinity(struct mlx5_cor int eqn; int err;
- err = mlx5_vector2eqn(dev, vector, &eqn, &irq); + err = mlx5_vector2eqn(dev, MLX5_EQ_VEC_COMP_BASE + vector, &eqn, &irq); if (err) return NULL;