linux/drivers/net/ethernet/mellanox/mlx5/core/wq.h

/*
 * Copyright (c) 2013-2015, Mellanox Technologies, Ltd.  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.
 */

#ifndef __MLX5_WQ_H__
#define __MLX5_WQ_H__

#include <linux/mlx5/mlx5_ifc.h>
#include <linux/mlx5/cq.h>
#include <linux/mlx5/qp.h>

struct mlx5_wq_param { … };

struct mlx5_wq_ctrl { … };

struct mlx5_wq_cyc { … };

struct mlx5_wq_qp { … };

struct mlx5_cqwq { … };

struct mlx5_wq_ll { … };

int mlx5_wq_cyc_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
		       void *wqc, struct mlx5_wq_cyc *wq,
		       struct mlx5_wq_ctrl *wq_ctrl);
void mlx5_wq_cyc_wqe_dump(struct mlx5_wq_cyc *wq, u16 ix, u8 nstrides);
void mlx5_wq_cyc_reset(struct mlx5_wq_cyc *wq);

int mlx5_wq_qp_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
		      void *qpc, struct mlx5_wq_qp *wq,
		      struct mlx5_wq_ctrl *wq_ctrl);

int mlx5_cqwq_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
		     void *cqc, struct mlx5_cqwq *wq,
		     struct mlx5_wq_ctrl *wq_ctrl);

int mlx5_wq_ll_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
		      void *wqc, struct mlx5_wq_ll *wq,
		      struct mlx5_wq_ctrl *wq_ctrl);
void mlx5_wq_ll_reset(struct mlx5_wq_ll *wq);

void mlx5_wq_destroy(struct mlx5_wq_ctrl *wq_ctrl);

static inline u32 mlx5_wq_cyc_get_size(struct mlx5_wq_cyc *wq)
{ … }

static inline int mlx5_wq_cyc_is_full(struct mlx5_wq_cyc *wq)
{ … }

static inline int mlx5_wq_cyc_missing(struct mlx5_wq_cyc *wq)
{ … }

static inline int mlx5_wq_cyc_is_empty(struct mlx5_wq_cyc *wq)
{ … }

static inline void mlx5_wq_cyc_push(struct mlx5_wq_cyc *wq)
{ … }

static inline void mlx5_wq_cyc_push_n(struct mlx5_wq_cyc *wq, u16 n)
{ … }

static inline void mlx5_wq_cyc_pop(struct mlx5_wq_cyc *wq)
{ … }

static inline void mlx5_wq_cyc_update_db_record(struct mlx5_wq_cyc *wq)
{ … }

static inline u16 mlx5_wq_cyc_ctr2ix(struct mlx5_wq_cyc *wq, u16 ctr)
{ … }

static inline u16 mlx5_wq_cyc_get_head(struct mlx5_wq_cyc *wq)
{ … }

static inline u16 mlx5_wq_cyc_get_tail(struct mlx5_wq_cyc *wq)
{ … }

static inline void *mlx5_wq_cyc_get_wqe(struct mlx5_wq_cyc *wq, u16 ix)
{ … }

static inline u16 mlx5_wq_cyc_get_contig_wqebbs(struct mlx5_wq_cyc *wq, u16 ix)
{ … }

static inline int mlx5_wq_cyc_cc_bigger(u16 cc1, u16 cc2)
{ … }

static inline u16 mlx5_wq_cyc_get_counter(struct mlx5_wq_cyc *wq)
{ … }

static inline u32 mlx5_cqwq_get_size(struct mlx5_cqwq *wq)
{ … }

static inline u8 mlx5_cqwq_get_log_stride_size(struct mlx5_cqwq *wq)
{ … }

static inline u32 mlx5_cqwq_ctr2ix(struct mlx5_cqwq *wq, u32 ctr)
{ … }

static inline u32 mlx5_cqwq_get_ci(struct mlx5_cqwq *wq)
{ … }

static inline struct mlx5_cqe64 *mlx5_cqwq_get_wqe(struct mlx5_cqwq *wq, u32 ix)
{ … }

static inline u32 mlx5_cqwq_get_ctr_wrap_cnt(struct mlx5_cqwq *wq, u32 ctr)
{ … }

static inline u32 mlx5_cqwq_get_wrap_cnt(struct mlx5_cqwq *wq)
{ … }

static inline void mlx5_cqwq_pop(struct mlx5_cqwq *wq)
{ … }

static inline void mlx5_cqwq_update_db_record(struct mlx5_cqwq *wq)
{ … }

static inline struct mlx5_cqe64 *mlx5_cqwq_get_cqe(struct mlx5_cqwq *wq)
{ … }

static inline
struct mlx5_cqe64 *mlx5_cqwq_get_cqe_enahnced_comp(struct mlx5_cqwq *wq)
{ … }

static inline u32 mlx5_wq_ll_get_size(struct mlx5_wq_ll *wq)
{ … }

static inline int mlx5_wq_ll_is_full(struct mlx5_wq_ll *wq)
{ … }

static inline int mlx5_wq_ll_is_empty(struct mlx5_wq_ll *wq)
{ … }

static inline int mlx5_wq_ll_missing(struct mlx5_wq_ll *wq)
{ … }

static inline void *mlx5_wq_ll_get_wqe(struct mlx5_wq_ll *wq, u16 ix)
{ … }

static inline u16 mlx5_wq_ll_get_wqe_next_ix(struct mlx5_wq_ll *wq, u16 ix)
{ … }

static inline void mlx5_wq_ll_push(struct mlx5_wq_ll *wq, u16 head_next)
{ … }

static inline void mlx5_wq_ll_pop(struct mlx5_wq_ll *wq, __be16 ix,
				  __be16 *next_tail_next)
{ … }

static inline void mlx5_wq_ll_update_db_record(struct mlx5_wq_ll *wq)
{ … }

static inline u16 mlx5_wq_ll_get_head(struct mlx5_wq_ll *wq)
{ … }

static inline u16 mlx5_wq_ll_get_counter(struct mlx5_wq_ll *wq)
{ … }

#endif /* __MLX5_WQ_H__ */