include/uapi/rdma/ocrdma-abi.h

   1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
   2 /* This file is part of the Emulex RoCE Device Driver for
   3  * RoCE (RDMA over Converged Ethernet) adapters.
   4  * Copyright (C) 2012-2015 Emulex. All rights reserved.
   5  * EMULEX and SLI are trademarks of Emulex.
   6  * www.emulex.com
   7  *
   8  * This software is available to you under a choice of one of two licenses.
   9  * You may choose to be licensed under the terms of the GNU General Public
  10  * License (GPL) Version 2, available from the file COPYING in the main
  11  * directory of this source tree, or the BSD license below:
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  *
  17  * - Redistributions of source code must retain the above copyright notice,
  18  *   this list of conditions and the following disclaimer.
  19  *
  20  * - Redistributions in binary form must reproduce the above copyright
  21  *   notice, this list of conditions and the following disclaimer in
  22  *   the documentation and/or other materials provided with the distribution.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  28  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  31  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  32  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  33  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  34  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  *
  36  * Contact Information:
  37  * linux-drivers@emulex.com
  38  *
  39  * Emulex
  40  * 3333 Susan Street
  41  * Costa Mesa, CA 92626
  42  */
  43
  44 #ifndef OCRDMA_ABI_USER_H
  45 #define OCRDMA_ABI_USER_H
  46
  47 #include <linux/types.h>
  48
  49 #define OCRDMA_ABI_VERSION 2
  50 #define OCRDMA_BE_ROCE_ABI_VERSION 1
  51 /* user kernel communication data structures. */
  52
  53 struct ocrdma_alloc_ucontext_resp {
  54         __u32 dev_id;
  55         __u32 wqe_size;
  56         __u32 max_inline_data;
  57         __u32 dpp_wqe_size;
  58         __u64 ah_tbl_page;
  59         __u32 ah_tbl_len;
  60         __u32 rqe_size;
  61         __u8 fw_ver[32];
  62         /* for future use/new features in progress */
  63         __u64 rsvd1;
  64         __u64 rsvd2;
  65 };
  66
  67 struct ocrdma_alloc_pd_ureq {
  68         __u64 rsvd1;
  69 };
  70
  71 struct ocrdma_alloc_pd_uresp {
  72         __u32 id;
  73         __u32 dpp_enabled;
  74         __u32 dpp_page_addr_hi;
  75         __u32 dpp_page_addr_lo;
  76         __u64 rsvd1;
  77 };
  78
  79 struct ocrdma_create_cq_ureq {
  80         __u32 dpp_cq;
  81         __u32 rsvd; /* pad */
  82 };
  83
  84 #define MAX_CQ_PAGES 8
  85 struct ocrdma_create_cq_uresp {
  86         __u32 cq_id;
  87         __u32 page_size;
  88         __u32 num_pages;
  89         __u32 max_hw_cqe;
  90         __u64 page_addr[MAX_CQ_PAGES];
  91         __u64 db_page_addr;
  92         __u32 db_page_size;
  93         __u32 phase_change;
  94         /* for future use/new features in progress */
  95         __u64 rsvd1;
  96         __u64 rsvd2;
  97 };
  98
  99 #define MAX_QP_PAGES 8
 100 #define MAX_UD_AV_PAGES 8
 101
 102 struct ocrdma_create_qp_ureq {
 103         __u8 enable_dpp_cq;
 104         __u8 rsvd;
 105         __u16 dpp_cq_id;
 106         __u32 rsvd1;    /* pad */
 107 };
 108
 109 struct ocrdma_create_qp_uresp {
 110         __u16 qp_id;
 111         __u16 sq_dbid;
 112         __u16 rq_dbid;
 113         __u16 resv0;    /* pad */
 114         __u32 sq_page_size;
 115         __u32 rq_page_size;
 116         __u32 num_sq_pages;
 117         __u32 num_rq_pages;
 118         __u64 sq_page_addr[MAX_QP_PAGES];
 119         __u64 rq_page_addr[MAX_QP_PAGES];
 120         __u64 db_page_addr;
 121         __u32 db_page_size;
 122         __u32 dpp_credit;
 123         __u32 dpp_offset;
 124         __u32 num_wqe_allocated;
 125         __u32 num_rqe_allocated;
 126         __u32 db_sq_offset;
 127         __u32 db_rq_offset;
 128         __u32 db_shift;
 129         __u64 rsvd[11];
 130 } __packed;
 131
 132 struct ocrdma_create_srq_uresp {
 133         __u16 rq_dbid;
 134         __u16 resv0;    /* pad */
 135         __u32 resv1;
 136
 137         __u32 rq_page_size;
 138         __u32 num_rq_pages;
 139
 140         __u64 rq_page_addr[MAX_QP_PAGES];
 141         __u64 db_page_addr;
 142
 143         __u32 db_page_size;
 144         __u32 num_rqe_allocated;
 145         __u32 db_rq_offset;
 146         __u32 db_shift;
 147
 148         __u64 rsvd2;
 149         __u64 rsvd3;
 150 };
 151
 152 #endif  /* OCRDMA_ABI_USER_H */