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IB/mlx5: Add create_cq extended command

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In order to create a CQ that supports timestamp, mlx5 needs to
support the extended create CQ command with the timestamp flag.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Matan Barak 2015-12-15 20:30:09 +02:00 committed by Doug Ledford
parent 145d9c5410
commit 972ecb8213
1 changed files with 7 additions and 0 deletions
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7
drivers/infiniband/hw/mlx5/cq.c
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@ -757,6 +757,10 @@ static void destroy_cq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq)
mlx5_db_free(dev->mdev, &cq->db);
}
enum {
CQ_CREATE_FLAGS_SUPPORTED = IB_CQ_FLAGS_TIMESTAMP_COMPLETION
};
struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev,
const struct ib_cq_init_attr *attr,
struct ib_ucontext *context,
@ -780,6 +784,9 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev,
if (entries < 0)
return ERR_PTR(-EINVAL);
if (attr->flags & ~CQ_CREATE_FLAGS_SUPPORTED)
return ERR_PTR(-EOPNOTSUPP);
entries = roundup_pow_of_two(entries + 1);
if (entries > (1 << MLX5_CAP_GEN(dev->mdev, log_max_cq_sz)))
return ERR_PTR(-EINVAL);