1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */ 2 /* QLogic qedr NIC Driver 3 * Copyright (c) 2015-2016 QLogic Corporation 4 * 5 * This software is available to you under a choice of one of two 6 * licenses. You may choose to be licensed under the terms of the GNU 7 * General Public License (GPL) Version 2, available from the file 8 * COPYING in the main directory of this source tree, or the 9 * OpenIB.org BSD license below: 10 * 11 * Redistribution and use in source and binary forms, with or 12 * without modification, are permitted provided that the following 13 * conditions are met: 14 * 15 * - Redistributions of source code must retain the above 16 * copyright notice, this list of conditions and the following 17 * disclaimer. 18 * 19 * - Redistributions in binary form must reproduce the above 20 * copyright notice, this list of conditions and the following 21 * disclaimer in the documentation and /or other materials 22 * provided with the distribution. 23 * 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 31 * SOFTWARE. 32 */ 33 #ifndef __QEDR_USER_H__ 34 #define __QEDR_USER_H__ 35 36 #include <linux/types.h> 37 38 #define QEDR_ABI_VERSION (8) 39 40 /* user kernel communication data structures. */ 41 enum qedr_alloc_ucontext_flags { 42 QEDR_ALLOC_UCTX_RESERVED = 1 << 0, 43 QEDR_ALLOC_UCTX_DB_REC = 1 << 1 44 }; 45 46 struct qedr_alloc_ucontext_req { 47 __u32 context_flags; 48 __u32 reserved; 49 }; 50 51 #define QEDR_LDPM_MAX_SIZE (8192) 52 #define QEDR_EDPM_TRANS_SIZE (64) 53 54 enum qedr_rdma_dpm_type { 55 QEDR_DPM_TYPE_NONE = 0, 56 QEDR_DPM_TYPE_ROCE_ENHANCED = 1 << 0, 57 QEDR_DPM_TYPE_ROCE_LEGACY = 1 << 1, 58 QEDR_DPM_TYPE_IWARP_LEGACY = 1 << 2, 59 QEDR_DPM_TYPE_RESERVED = 1 << 3, 60 QEDR_DPM_SIZES_SET = 1 << 4, 61 }; 62 63 struct qedr_alloc_ucontext_resp { 64 __aligned_u64 db_pa; 65 __u32 db_size; 66 67 __u32 max_send_wr; 68 __u32 max_recv_wr; 69 __u32 max_srq_wr; 70 __u32 sges_per_send_wr; 71 __u32 sges_per_recv_wr; 72 __u32 sges_per_srq_wr; 73 __u32 max_cqes; 74 __u8 dpm_flags; 75 __u8 wids_enabled; 76 __u16 wid_count; 77 __u16 ldpm_limit_size; 78 __u8 edpm_trans_size; 79 __u8 reserved; 80 }; 81 82 struct qedr_alloc_pd_ureq { 83 __aligned_u64 rsvd1; 84 }; 85 86 struct qedr_alloc_pd_uresp { 87 __u32 pd_id; 88 __u32 reserved; 89 }; 90 91 struct qedr_create_cq_ureq { 92 __aligned_u64 addr; 93 __aligned_u64 len; 94 }; 95 96 struct qedr_create_cq_uresp { 97 __u32 db_offset; 98 __u16 icid; 99 __u16 reserved; 100 __aligned_u64 db_rec_addr; 101 }; 102 103 struct qedr_create_qp_ureq { 104 __u32 qp_handle_hi; 105 __u32 qp_handle_lo; 106 107 /* SQ */ 108 /* user space virtual address of SQ buffer */ 109 __aligned_u64 sq_addr; 110 111 /* length of SQ buffer */ 112 __aligned_u64 sq_len; 113 114 /* RQ */ 115 /* user space virtual address of RQ buffer */ 116 __aligned_u64 rq_addr; 117 118 /* length of RQ buffer */ 119 __aligned_u64 rq_len; 120 }; 121 122 struct qedr_create_qp_uresp { 123 __u32 qp_id; 124 __u32 atomic_supported; 125 126 /* SQ */ 127 __u32 sq_db_offset; 128 __u16 sq_icid; 129 130 /* RQ */ 131 __u32 rq_db_offset; 132 __u16 rq_icid; 133 134 __u32 rq_db2_offset; 135 __u32 reserved; 136 137 /* address of SQ doorbell recovery user entry */ 138 __aligned_u64 sq_db_rec_addr; 139 140 /* address of RQ doorbell recovery user entry */ 141 __aligned_u64 rq_db_rec_addr; 142 143 }; 144 145 struct qedr_create_srq_ureq { 146 /* user space virtual address of producer pair */ 147 __aligned_u64 prod_pair_addr; 148 149 /* user space virtual address of SRQ buffer */ 150 __aligned_u64 srq_addr; 151 152 /* length of SRQ buffer */ 153 __aligned_u64 srq_len; 154 }; 155 156 struct qedr_create_srq_uresp { 157 __u16 srq_id; 158 __u16 reserved0; 159 __u32 reserved1; 160 }; 161 162 /* doorbell recovery entry allocated and populated by userspace doorbelling 163 * entities and mapped to kernel. Kernel uses this to register doorbell 164 * information with doorbell drop recovery mechanism. 165 */ 166 struct qedr_user_db_rec { 167 __aligned_u64 db_data; /* doorbell data */ 168 }; 169 170 #endif /* __QEDR_USER_H__ */ 171