linux/drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c

/*
 * Copyright (c) 2017 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 <net/addrconf.h>
#include <linux/etherdevice.h>
#include <linux/mlx5/vport.h>

#include "mlx5_core.h"
#include "lib/mlx5.h"
#include "fpga/conn.h"

#define MLX5_FPGA_PKEY …
#define MLX5_FPGA_PKEY_INDEX …
#define MLX5_FPGA_RECV_SIZE …
#define MLX5_FPGA_PORT_NUM …
#define MLX5_FPGA_CQ_BUDGET …

static int mlx5_fpga_conn_map_buf(struct mlx5_fpga_conn *conn,
				  struct mlx5_fpga_dma_buf *buf)
{ … }

static void mlx5_fpga_conn_unmap_buf(struct mlx5_fpga_conn *conn,
				     struct mlx5_fpga_dma_buf *buf)
{ … }

static int mlx5_fpga_conn_post_recv(struct mlx5_fpga_conn *conn,
				    struct mlx5_fpga_dma_buf *buf)
{ … }

static void mlx5_fpga_conn_notify_hw(struct mlx5_fpga_conn *conn, void *wqe)
{ … }

static void mlx5_fpga_conn_post_send(struct mlx5_fpga_conn *conn,
				     struct mlx5_fpga_dma_buf *buf)
{ … }

int mlx5_fpga_conn_send(struct mlx5_fpga_conn *conn,
			struct mlx5_fpga_dma_buf *buf)
{ … }

static int mlx5_fpga_conn_post_recv_buf(struct mlx5_fpga_conn *conn)
{ … }

static int mlx5_fpga_conn_create_mkey(struct mlx5_core_dev *mdev, u32 pdn,
				      u32 *mkey)
{ … }

static void mlx5_fpga_conn_rq_cqe(struct mlx5_fpga_conn *conn,
				  struct mlx5_cqe64 *cqe, u8 status)
{ … }

static void mlx5_fpga_conn_sq_cqe(struct mlx5_fpga_conn *conn,
				  struct mlx5_cqe64 *cqe, u8 status)
{ … }

static void mlx5_fpga_conn_handle_cqe(struct mlx5_fpga_conn *conn,
				      struct mlx5_cqe64 *cqe)
{ … }

static void mlx5_fpga_conn_arm_cq(struct mlx5_fpga_conn *conn)
{ … }

static inline void mlx5_fpga_conn_cqes(struct mlx5_fpga_conn *conn,
				       unsigned int budget)
{ … }

static void mlx5_fpga_conn_cq_tasklet(struct tasklet_struct *t)
{ … }

static void mlx5_fpga_conn_cq_complete(struct mlx5_core_cq *mcq,
				       struct mlx5_eqe *eqe)
{ … }

static int mlx5_fpga_conn_create_cq(struct mlx5_fpga_conn *conn, int cq_size)
{ … }

static void mlx5_fpga_conn_destroy_cq(struct mlx5_fpga_conn *conn)
{ … }

static int mlx5_fpga_conn_create_wq(struct mlx5_fpga_conn *conn, void *qpc)
{ … }

static int mlx5_fpga_conn_create_qp(struct mlx5_fpga_conn *conn,
				    unsigned int tx_size, unsigned int rx_size)
{ … }

static void mlx5_fpga_conn_free_recv_bufs(struct mlx5_fpga_conn *conn)
{ … }

static void mlx5_fpga_conn_flush_send_bufs(struct mlx5_fpga_conn *conn)
{ … }

static void mlx5_fpga_conn_destroy_qp(struct mlx5_fpga_conn *conn)
{ … }

static int mlx5_fpga_conn_reset_qp(struct mlx5_fpga_conn *conn)
{ … }

static int mlx5_fpga_conn_init_qp(struct mlx5_fpga_conn *conn)
{ … }

static int mlx5_fpga_conn_rtr_qp(struct mlx5_fpga_conn *conn)
{ … }

static int mlx5_fpga_conn_rts_qp(struct mlx5_fpga_conn *conn)
{ … }

static int mlx5_fpga_conn_connect(struct mlx5_fpga_conn *conn)
{ … }

struct mlx5_fpga_conn *mlx5_fpga_conn_create(struct mlx5_fpga_device *fdev,
					     struct mlx5_fpga_conn_attr *attr,
					     enum mlx5_ifc_fpga_qp_type qp_type)
{ … }

void mlx5_fpga_conn_destroy(struct mlx5_fpga_conn *conn)
{ … }

int mlx5_fpga_conn_device_init(struct mlx5_fpga_device *fdev)
{ … }

void mlx5_fpga_conn_device_cleanup(struct mlx5_fpga_device *fdev)
{ … }