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. */ 41enum qedr_alloc_ucontext_flags { 42 QEDR_ALLOC_UCTX_EDPM_MODE = 1 << 0, 43 QEDR_ALLOC_UCTX_DB_REC = 1 << 1, 44 QEDR_SUPPORT_DPM_SIZES = 1 << 2, 45}; 46 47struct qedr_alloc_ucontext_req { 48 __u32 context_flags; 49 __u32 reserved; 50}; 51 52#define QEDR_LDPM_MAX_SIZE (8192) 53#define QEDR_EDPM_TRANS_SIZE (64) 54#define QEDR_EDPM_MAX_SIZE (ROCE_REQ_MAX_INLINE_DATA_SIZE) 55 56enum qedr_rdma_dpm_type { 57 QEDR_DPM_TYPE_NONE = 0, 58 QEDR_DPM_TYPE_ROCE_ENHANCED = 1 << 0, 59 QEDR_DPM_TYPE_ROCE_LEGACY = 1 << 1, 60 QEDR_DPM_TYPE_IWARP_LEGACY = 1 << 2, 61 QEDR_DPM_TYPE_ROCE_EDPM_MODE = 1 << 3, 62 QEDR_DPM_SIZES_SET = 1 << 4, 63}; 64 65struct qedr_alloc_ucontext_resp { 66 __aligned_u64 db_pa; 67 __u32 db_size; 68 69 __u32 max_send_wr; 70 __u32 max_recv_wr; 71 __u32 max_srq_wr; 72 __u32 sges_per_send_wr; 73 __u32 sges_per_recv_wr; 74 __u32 sges_per_srq_wr; 75 __u32 max_cqes; 76 __u8 dpm_flags; 77 __u8 wids_enabled; 78 __u16 wid_count; 79 __u16 ldpm_limit_size; 80 __u8 edpm_trans_size; 81 __u8 reserved; 82 __u16 edpm_limit_size; 83 __u8 padding[6]; 84}; 85 86struct qedr_alloc_pd_ureq { 87 __aligned_u64 rsvd1; 88}; 89 90struct qedr_alloc_pd_uresp { 91 __u32 pd_id; 92 __u32 reserved; 93}; 94 95struct qedr_create_cq_ureq { 96 __aligned_u64 addr; 97 __aligned_u64 len; 98}; 99 100struct qedr_create_cq_uresp { 101 __u32 db_offset; 102 __u16 icid; 103 __u16 reserved; 104 __aligned_u64 db_rec_addr; 105}; 106 107struct qedr_create_qp_ureq { 108 __u32 qp_handle_hi; 109 __u32 qp_handle_lo; 110 111 /* SQ */ 112 /* user space virtual address of SQ buffer */ 113 __aligned_u64 sq_addr; 114 115 /* length of SQ buffer */ 116 __aligned_u64 sq_len; 117 118 /* RQ */ 119 /* user space virtual address of RQ buffer */ 120 __aligned_u64 rq_addr; 121 122 /* length of RQ buffer */ 123 __aligned_u64 rq_len; 124}; 125 126struct qedr_create_qp_uresp { 127 __u32 qp_id; 128 __u32 atomic_supported; 129 130 /* SQ */ 131 __u32 sq_db_offset; 132 __u16 sq_icid; 133 134 /* RQ */ 135 __u32 rq_db_offset; 136 __u16 rq_icid; 137 138 __u32 rq_db2_offset; 139 __u32 reserved; 140 141 /* address of SQ doorbell recovery user entry */ 142 __aligned_u64 sq_db_rec_addr; 143 144 /* address of RQ doorbell recovery user entry */ 145 __aligned_u64 rq_db_rec_addr; 146 147}; 148 149struct qedr_create_srq_ureq { 150 /* user space virtual address of producer pair */ 151 __aligned_u64 prod_pair_addr; 152 153 /* user space virtual address of SRQ buffer */ 154 __aligned_u64 srq_addr; 155 156 /* length of SRQ buffer */ 157 __aligned_u64 srq_len; 158}; 159 160struct qedr_create_srq_uresp { 161 __u16 srq_id; 162 __u16 reserved0; 163 __u32 reserved1; 164}; 165 166/* doorbell recovery entry allocated and populated by userspace doorbelling 167 * entities and mapped to kernel. Kernel uses this to register doorbell 168 * information with doorbell drop recovery mechanism. 169 */ 170struct qedr_user_db_rec { 171 __aligned_u64 db_data; /* doorbell data */ 172}; 173 174#endif /* __QEDR_USER_H__ */ 175