conn.h

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    1 /*-
    2  * Copyright (c) 2017 Mellanox Technologies. All rights reserved.
    3  *
    4  * This software is available to you under a choice of one of two
    5  * licenses.  You may choose to be licensed under the terms of the GNU
    6  * General Public License (GPL) Version 2, available from the file
    7  * COPYING in the main directory of this source tree, or the
    8  * OpenIB.org BSD license below:
    9  *
   10  *     Redistribution and use in source and binary forms, with or
   11  *     without modification, are permitted provided that the following
   12  *     conditions are met:
   13  *
   14  *      - Redistributions of source code must retain the above
   15  *        copyright notice, this list of conditions and the following
   16  *        disclaimer.
   17  *
   18  *      - Redistributions in binary form must reproduce the above
   19  *        copyright notice, this list of conditions and the following
   20  *        disclaimer in the documentation and/or other materials
   21  *        provided with the distribution.
   22  *
   23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
   27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
   28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   30  * SOFTWARE.
   31  *
   32  * $FreeBSD$
   33  */
   34 
   35 #ifndef __MLX5_FPGA_CONN_H__
   36 #define __MLX5_FPGA_CONN_H__
   37 
   38 #include <dev/mlx5/cq.h>
   39 #include <dev/mlx5/qp.h>
   40 #include <dev/mlx5/mlx5_fpga/core.h>
   41 #include <dev/mlx5/mlx5_fpga/sdk.h>
   42 #include <dev/mlx5/mlx5_core/wq.h>
   43 #include <linux/interrupt.h>
   44 
   45 struct mlx5_fpga_conn {
   46         struct mlx5_fpga_device *fdev;
   47 
   48         void (*recv_cb)(void *cb_arg, struct mlx5_fpga_dma_buf *buf);
   49         void *cb_arg;
   50 
   51         /* FPGA QP */
   52         u32 fpga_qpc[MLX5_ST_SZ_DW(fpga_qpc)];
   53         u32 fpga_qpn;
   54 
   55         /* CQ */
   56         struct {
   57                 struct mlx5_cqwq wq;
   58                 struct mlx5_frag_wq_ctrl wq_ctrl;
   59                 struct mlx5_core_cq mcq;
   60                 struct tasklet_struct tasklet;
   61         } cq;
   62 
   63         /* QP */
   64         struct {
   65                 bool active;
   66                 int sgid_index;
   67                 struct mlx5_wq_qp wq;
   68                 struct mlx5_wq_ctrl wq_ctrl;
   69                 struct mlx5_core_qp mqp;
   70                 struct {
   71                         spinlock_t lock; /* Protects all SQ state */
   72                         unsigned int pc;
   73                         unsigned int cc;
   74                         unsigned int size;
   75                         struct mlx5_fpga_dma_buf **bufs;
   76                         struct list_head backlog;
   77                 } sq;
   78                 struct {
   79                         unsigned int pc;
   80                         unsigned int cc;
   81                         unsigned int size;
   82                         struct mlx5_fpga_dma_buf **bufs;
   83                 } rq;
   84         } qp;
   85 };
   86 
   87 int mlx5_fpga_conn_device_init(struct mlx5_fpga_device *fdev);
   88 void mlx5_fpga_conn_device_cleanup(struct mlx5_fpga_device *fdev);
   89 struct mlx5_fpga_conn *
   90 mlx5_fpga_conn_create(struct mlx5_fpga_device *fdev,
   91                       struct mlx5_fpga_conn_attr *attr,
   92                       enum mlx5_ifc_fpga_qp_type qp_type);
   93 void mlx5_fpga_conn_destroy(struct mlx5_fpga_conn *conn);
   94 int mlx5_fpga_conn_send(struct mlx5_fpga_conn *conn,
   95                         struct mlx5_fpga_dma_buf *buf);
   96 
   97 #endif /* __MLX5_FPGA_CONN_H__ */

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FreeBSD/Linux Kernel Cross Reference sys/dev/mlx5/mlx5_fpga/conn.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/mlx5/mlx5_fpga/conn.h