Thanks Sagi,
I can confirm this fixes our issue.
Nice Catch!
Logan
On 05/02/18 07:24 AM, Sagi Grimberg wrote:
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@xxxxxxxxxxxx>
Tested-by: Max Gurtovoy <maxg@xxxxxxxxxxxx>
Reviewed-by: Max Gurtovoy <maxg@xxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v4.15
Signed-off-by: Sagi Grimberg <sagi@xxxxxxxxxxx>
---
include/linux/mlx5/driver.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index a0610427e168..b82c4ae92411 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -1238,7 +1238,7 @@ mlx5_get_vector_affinity(struct mlx5_core_dev *dev, int vector)
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;
--
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