/*-
* Copyright (c) 2015 Mellanox Technologies. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include "en.h"
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);
/* ensure cqe content is read after cqe ownership bit */
atomic_thread_fence_acq();
return (cqe);
}
void
mlx5e_cq_error_event(struct mlx5_core_cq *mcq, int event)
{
struct mlx5e_cq *cq = container_of(mcq, struct mlx5e_cq, mcq);
mlx5_en_err(cq->priv->ifp, "cqn=0x%.6x event=0x%.2x\n",
mcq->cqn, event);
}
