1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */ 2 /* 3 * Broadcom NetXtreme-E RoCE driver. 4 * 5 * Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term 6 * Broadcom refers to Broadcom Limited and/or its subsidiaries. 7 * 8 * This software is available to you under a choice of one of two 9 * licenses. You may choose to be licensed under the terms of the GNU 10 * General Public License (GPL) Version 2, available from the file 11 * COPYING in the main directory of this source tree, or the 12 * BSD license below: 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 18 * 1. Redistributions of source code must retain the above copyright 19 * notice, this list of conditions and the following disclaimer. 20 * 2. 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 23 * distribution. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' 26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 27 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 32 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 33 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 34 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 35 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 * 37 * Description: Uverbs ABI header file 38 */ 39 40 #ifndef __BNXT_RE_UVERBS_ABI_H__ 41 #define __BNXT_RE_UVERBS_ABI_H__ 42 43 #include <linux/types.h> 44 #include <rdma/ib_user_ioctl_cmds.h> 45 46 #define BNXT_RE_ABI_VERSION 1 47 48 #define BNXT_RE_CHIP_ID0_CHIP_NUM_SFT 0x00 49 #define BNXT_RE_CHIP_ID0_CHIP_REV_SFT 0x10 50 #define BNXT_RE_CHIP_ID0_CHIP_MET_SFT 0x18 51 52 enum { 53 BNXT_RE_UCNTX_CMASK_HAVE_CCTX = 0x1ULL, 54 BNXT_RE_UCNTX_CMASK_HAVE_MODE = 0x02ULL, 55 BNXT_RE_UCNTX_CMASK_WC_DPI_ENABLED = 0x04ULL, 56 BNXT_RE_UCNTX_CMASK_DBR_PACING_ENABLED = 0x08ULL, 57 BNXT_RE_UCNTX_CMASK_POW2_DISABLED = 0x10ULL, 58 BNXT_RE_COMP_MASK_UCNTX_HW_RETX_ENABLED = 0x40, 59 }; 60 61 enum bnxt_re_wqe_mode { 62 BNXT_QPLIB_WQE_MODE_STATIC = 0x00, 63 BNXT_QPLIB_WQE_MODE_VARIABLE = 0x01, 64 BNXT_QPLIB_WQE_MODE_INVALID = 0x02, 65 }; 66 67 enum { 68 BNXT_RE_COMP_MASK_REQ_UCNTX_POW2_SUPPORT = 0x01, 69 }; 70 71 struct bnxt_re_uctx_req { 72 __aligned_u64 comp_mask; 73 }; 74 75 struct bnxt_re_uctx_resp { 76 __u32 dev_id; 77 __u32 max_qp; 78 __u32 pg_size; 79 __u32 cqe_sz; 80 __u32 max_cqd; 81 __u32 rsvd; 82 __aligned_u64 comp_mask; 83 __u32 chip_id0; 84 __u32 chip_id1; 85 __u32 mode; 86 __u32 rsvd1; /* padding */ 87 }; 88 89 /* 90 * This struct is placed after the ib_uverbs_alloc_pd_resp struct, which is 91 * not 8 byted aligned. To avoid undesired padding in various cases we have to 92 * set this struct to packed. 93 */ 94 struct bnxt_re_pd_resp { 95 __u32 pdid; 96 __u32 dpi; 97 __u64 dbr; 98 } __attribute__((packed, aligned(4))); 99 100 struct bnxt_re_cq_req { 101 __aligned_u64 cq_va; 102 __aligned_u64 cq_handle; 103 }; 104 105 struct bnxt_re_cq_resp { 106 __u32 cqid; 107 __u32 tail; 108 __u32 phase; 109 __u32 rsvd; 110 }; 111 112 struct bnxt_re_resize_cq_req { 113 __aligned_u64 cq_va; 114 }; 115 116 struct bnxt_re_qp_req { 117 __aligned_u64 qpsva; 118 __aligned_u64 qprva; 119 __aligned_u64 qp_handle; 120 }; 121 122 struct bnxt_re_qp_resp { 123 __u32 qpid; 124 __u32 rsvd; 125 }; 126 127 struct bnxt_re_srq_req { 128 __aligned_u64 srqva; 129 __aligned_u64 srq_handle; 130 }; 131 132 struct bnxt_re_srq_resp { 133 __u32 srqid; 134 }; 135 136 enum bnxt_re_shpg_offt { 137 BNXT_RE_BEG_RESV_OFFT = 0x00, 138 BNXT_RE_AVID_OFFT = 0x10, 139 BNXT_RE_AVID_SIZE = 0x04, 140 BNXT_RE_END_RESV_OFFT = 0xFF0 141 }; 142 143 enum bnxt_re_objects { 144 BNXT_RE_OBJECT_ALLOC_PAGE = (1U << UVERBS_ID_NS_SHIFT), 145 BNXT_RE_OBJECT_NOTIFY_DRV, 146 }; 147 148 enum bnxt_re_alloc_page_type { 149 BNXT_RE_ALLOC_WC_PAGE = 0, 150 BNXT_RE_ALLOC_DBR_BAR_PAGE, 151 BNXT_RE_ALLOC_DBR_PAGE, 152 }; 153 154 enum bnxt_re_var_alloc_page_attrs { 155 BNXT_RE_ALLOC_PAGE_HANDLE = (1U << UVERBS_ID_NS_SHIFT), 156 BNXT_RE_ALLOC_PAGE_TYPE, 157 BNXT_RE_ALLOC_PAGE_DPI, 158 BNXT_RE_ALLOC_PAGE_MMAP_OFFSET, 159 BNXT_RE_ALLOC_PAGE_MMAP_LENGTH, 160 }; 161 162 enum bnxt_re_alloc_page_attrs { 163 BNXT_RE_DESTROY_PAGE_HANDLE = (1U << UVERBS_ID_NS_SHIFT), 164 }; 165 166 enum bnxt_re_alloc_page_methods { 167 BNXT_RE_METHOD_ALLOC_PAGE = (1U << UVERBS_ID_NS_SHIFT), 168 BNXT_RE_METHOD_DESTROY_PAGE, 169 }; 170 171 enum bnxt_re_notify_drv_methods { 172 BNXT_RE_METHOD_NOTIFY_DRV = (1U << UVERBS_ID_NS_SHIFT), 173 }; 174 #endif /* __BNXT_RE_UVERBS_ABI_H__*/ 175