Exemplos de mlx5_cqwq_get_wrap_cnt em C++ (Cpp)

Exemplo n.º 1

Arquivo: en_txrx.c Projeto: doniexun/linux

struct mlx5_cqe64 *mlx5e_get_cqe(struct mlx5e_cq *cq)
{
	struct mlx5_cqwq *wq = &cq->wq;
	u32 ci = mlx5_cqwq_get_ci(wq);
	struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(wq, ci);
	int cqe_ownership_bit = cqe->op_own & MLX5_CQE_OWNER_MASK;
	int sw_ownership_val = mlx5_cqwq_get_wrap_cnt(wq) & 1;

	if (cqe_ownership_bit != sw_ownership_val)
		return NULL;

	/* ensure cqe content is read after cqe ownership bit */
	rmb();

	return cqe;
}

Exemplo n.º 2

Arquivo: mlx5_en_txrx.c Projeto: hbsciw/freebsd

struct mlx5_cqe64 *
mlx5e_get_cqe(struct mlx5e_cq *cq)
{
	struct mlx5_cqe64 *cqe;

	cqe = mlx5_cqwq_get_wqe(&cq->wq, mlx5_cqwq_get_ci(&cq->wq));

	if ((cqe->op_own ^ mlx5_cqwq_get_wrap_cnt(&cq->wq)) & MLX5_CQE_OWNER_MASK)
		return (NULL);

	mlx5_cqwq_pop(&cq->wq);

	/* ensure cqe content is read after cqe ownership bit */
	rmb();

	return (cqe);
}