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IB/mlx5: Fix entries check in mlx5_ib_resize_cq
Verify that number of entries is less than device capability.
Add an appropriate warning message for error flow.
Fixes: bde51583f4
('IB/mlx5: Add support for resize CQ')
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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parent
9ea5785286
commit
3c4c37746c
1 changed files with 7 additions and 2 deletions
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@ -1169,11 +1169,16 @@ int mlx5_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
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return -ENOSYS;
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}
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if (entries < 1)
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if (entries < 1 ||
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entries > (1 << MLX5_CAP_GEN(dev->mdev, log_max_cq_sz))) {
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mlx5_ib_warn(dev, "wrong entries number %d, max %d\n",
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entries,
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1 << MLX5_CAP_GEN(dev->mdev, log_max_cq_sz));
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return -EINVAL;
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}
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entries = roundup_pow_of_two(entries + 1);
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if (entries > (1 << MLX5_CAP_GEN(dev->mdev, log_max_cq_sz)) + 1)
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if (entries > (1 << MLX5_CAP_GEN(dev->mdev, log_max_cq_sz)) + 1)
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return -EINVAL;
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if (entries == ibcq->cqe + 1)
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