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net/mlx5: CQ hold/put API

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Now as the CQ table is per EQ, add an API to hold/put CQ to be used from
eq.c in downstream patch.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Gal Pressman <galp@mellanox.com>
This commit is contained in:
Saeed Mahameed
2018-02-01 03:32:00 -08:00
parent d5c07157dd
commit f105b45bf7
2 changed files with 30 additions and 23 deletions
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11
include/linux/mlx5/cq.h
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@@ -172,6 +172,17 @@ static inline void mlx5_cq_arm(struct mlx5_core_cq *cq, u32 cmd,
mlx5_write64(doorbell, uar_page + MLX5_CQ_DOORBELL, NULL);
}
static inline void mlx5_cq_hold(struct mlx5_core_cq *cq)
{
refcount_inc(&cq->refcount);
}
static inline void mlx5_cq_put(struct mlx5_core_cq *cq)
{
if (refcount_dec_and_test(&cq->refcount))
complete(&cq->free);
}
int mlx5_core_create_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq,
u32 *in, int inlen);
int mlx5_core_destroy_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq);