linux/drivers/net/ethernet/mellanox/mlx5/core/cq.c

/*
 * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - 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.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <linux/kernel.h>
#include <linux/hardirq.h>
#include <linux/mlx5/driver.h>
#include <rdma/ib_verbs.h>
#include <linux/mlx5/cq.h>
#include "mlx5_core.h"
#include "lib/eq.h"

#define TASKLET_MAX_TIME …
#define TASKLET_MAX_TIME_JIFFIES …

void mlx5_cq_tasklet_cb(struct tasklet_struct *t)
{ … }

static void mlx5_add_cq_to_tasklet(struct mlx5_core_cq *cq,
				   struct mlx5_eqe *eqe)
{ … }

/* Callers must verify outbox status in case of err */
int mlx5_create_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq,
		   u32 *in, int inlen, u32 *out, int outlen)
{ … }
EXPORT_SYMBOL(…);

/* oubox is checked and err val is normalized */
int mlx5_core_create_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq,
			u32 *in, int inlen, u32 *out, int outlen)
{ … }
EXPORT_SYMBOL(…);

int mlx5_core_destroy_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq)
{ … }
EXPORT_SYMBOL(…);

int mlx5_core_query_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq,
		       u32 *out)
{ … }
EXPORT_SYMBOL(…);

int mlx5_core_modify_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq,
			u32 *in, int inlen)
{ … }
EXPORT_SYMBOL(…);

int mlx5_core_modify_cq_moderation(struct mlx5_core_dev *dev,
				   struct mlx5_core_cq *cq,
				   u16 cq_period,
				   u16 cq_max_count)
{ … }
EXPORT_SYMBOL(…);