LXR linux/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
  53struct ocrdma_alloc_ucontext_resp {
  54        __u32 dev_id;
  55        __u32 wqe_size;
  56        __u32 max_inline_data;
  57        __u32 dpp_wqe_size;
  58        __aligned_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        __aligned_u64 rsvd1;
  64        __aligned_u64 rsvd2;
  65};
  66
  67struct ocrdma_alloc_pd_ureq {
  68        __u32 rsvd[2];
  69};
  70
  71struct ocrdma_alloc_pd_uresp {
  72        __u32 id;
  73        __u32 dpp_enabled;
  74        __u32 dpp_page_addr_hi;
  75        __u32 dpp_page_addr_lo;
  76        __u32 rsvd[2];
  77};
  78
  79struct ocrdma_create_cq_ureq {
  80        __u32 dpp_cq;
  81        __u32 rsvd; /* pad */
  82};
  83
  84#define MAX_CQ_PAGES 8
  85struct ocrdma_create_cq_uresp {
  86        __u32 cq_id;
  87        __u32 page_size;
  88        __u32 num_pages;
  89        __u32 max_hw_cqe;
  90        __aligned_u64 page_addr[MAX_CQ_PAGES];
  91        __aligned_u64 db_page_addr;
  92        __u32 db_page_size;
  93        __u32 phase_change;
  94        /* for future use/new features in progress */
  95        __aligned_u64 rsvd1;
  96        __aligned_u64 rsvd2;
  97};
  98
  99#define MAX_QP_PAGES 8
 100#define MAX_UD_AV_PAGES 8
 101
 102struct ocrdma_create_qp_ureq {
 103        __u8 enable_dpp_cq;
 104        __u8 rsvd;
 105        __u16 dpp_cq_id;
 106        __u32 rsvd1;    /* pad */
 107};
 108
 109struct 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        __aligned_u64 sq_page_addr[MAX_QP_PAGES];
 119        __aligned_u64 rq_page_addr[MAX_QP_PAGES];
 120        __aligned_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        __aligned_u64 rsvd[11];
 130};
 131
 132struct 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        __aligned_u64 rq_page_addr[MAX_QP_PAGES];
 141        __aligned_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        __aligned_u64 rsvd2;
 149        __aligned_u64 rsvd3;
 150};
 151
 152#endif  /* OCRDMA_ABI_USER_H */
 153