drivers/infiniband/hw/ocrdma/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_H__
  44 #define __OCRDMA_ABI_H__
  45
  46 #define OCRDMA_ABI_VERSION 2
  47 #define OCRDMA_BE_ROCE_ABI_VERSION 1
  48 /* user kernel communication data structures. */
  49
  50 struct ocrdma_alloc_ucontext_resp {
  51         u32 dev_id;
  52         u32 wqe_size;
  53         u32 max_inline_data;
  54         u32 dpp_wqe_size;
  55         u64 ah_tbl_page;
  56         u32 ah_tbl_len;
  57         u32 rqe_size;
  58         u8 fw_ver[32];
  59         /* for future use/new features in progress */
  60         u64 rsvd1;
  61         u64 rsvd2;
  62 };
  63
  64 struct ocrdma_alloc_pd_ureq {
  65         u64 rsvd1;
  66 };
  67
  68 struct ocrdma_alloc_pd_uresp {
  69         u32 id;
  70         u32 dpp_enabled;
  71         u32 dpp_page_addr_hi;
  72         u32 dpp_page_addr_lo;
  73         u64 rsvd1;
  74 };
  75
  76 struct ocrdma_create_cq_ureq {
  77         u32 dpp_cq;
  78         u32 rsvd; /* pad */
  79 };
  80
  81 #define MAX_CQ_PAGES 8
  82 struct ocrdma_create_cq_uresp {
  83         u32 cq_id;
  84         u32 page_size;
  85         u32 num_pages;
  86         u32 max_hw_cqe;
  87         u64 page_addr[MAX_CQ_PAGES];
  88         u64 db_page_addr;
  89         u32 db_page_size;
  90         u32 phase_change;
  91         /* for future use/new features in progress */
  92         u64 rsvd1;
  93         u64 rsvd2;
  94 };
  95
  96 #define MAX_QP_PAGES 8
  97 #define MAX_UD_AV_PAGES 8
  98
  99 struct ocrdma_create_qp_ureq {
 100         u8 enable_dpp_cq;
 101         u8 rsvd;
 102         u16 dpp_cq_id;
 103         u32 rsvd1;      /* pad */
 104 };
 105
 106 struct ocrdma_create_qp_uresp {
 107         u16 qp_id;
 108         u16 sq_dbid;
 109         u16 rq_dbid;
 110         u16 resv0;      /* pad */
 111         u32 sq_page_size;
 112         u32 rq_page_size;
 113         u32 num_sq_pages;
 114         u32 num_rq_pages;
 115         u64 sq_page_addr[MAX_QP_PAGES];
 116         u64 rq_page_addr[MAX_QP_PAGES];
 117         u64 db_page_addr;
 118         u32 db_page_size;
 119         u32 dpp_credit;
 120         u32 dpp_offset;
 121         u32 num_wqe_allocated;
 122         u32 num_rqe_allocated;
 123         u32 db_sq_offset;
 124         u32 db_rq_offset;
 125         u32 db_shift;
 126         u64 rsvd[11];
 127 } __packed;
 128
 129 struct ocrdma_create_srq_uresp {
 130         u16 rq_dbid;
 131         u16 resv0;      /* pad */
 132         u32 resv1;
 133
 134         u32 rq_page_size;
 135         u32 num_rq_pages;
 136
 137         u64 rq_page_addr[MAX_QP_PAGES];
 138         u64 db_page_addr;
 139
 140         u32 db_page_size;
 141         u32 num_rqe_allocated;
 142         u32 db_rq_offset;
 143         u32 db_shift;
 144
 145         u64 rsvd2;
 146         u64 rsvd3;
 147 };
 148
 149 #endif                          /* __OCRDMA_ABI_H__ */