include/uapi/rdma/ocrdma-abi.h

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