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 struct qedr_alloc_ucontext_resp { 52 __aligned_u64 db_pa; 53 __u32 db_size; 54 55 __u32 max_send_wr; 56 __u32 max_recv_wr; 57 __u32 max_srq_wr; 58 __u32 sges_per_send_wr; 59 __u32 sges_per_recv_wr; 60 __u32 sges_per_srq_wr; 61 __u32 max_cqes; 62 __u8 dpm_enabled; 63 __u8 wids_enabled; 64 __u16 wid_count; 65 __u32 reserved; 66 }; 67 68 struct qedr_alloc_pd_ureq { 69 __aligned_u64 rsvd1; 70 }; 71 72 struct qedr_alloc_pd_uresp { 73 __u32 pd_id; 74 __u32 reserved; 75 }; 76 77 struct qedr_create_cq_ureq { 78 __aligned_u64 addr; 79 __aligned_u64 len; 80 }; 81 82 struct qedr_create_cq_uresp { 83 __u32 db_offset; 84 __u16 icid; 85 __u16 reserved; 86 __aligned_u64 db_rec_addr; 87 }; 88 89 struct qedr_create_qp_ureq { 90 __u32 qp_handle_hi; 91 __u32 qp_handle_lo; 92 93 /* SQ */ 94 /* user space virtual address of SQ buffer */ 95 __aligned_u64 sq_addr; 96 97 /* length of SQ buffer */ 98 __aligned_u64 sq_len; 99 100 /* RQ */ 101 /* user space virtual address of RQ buffer */ 102 __aligned_u64 rq_addr; 103 104 /* length of RQ buffer */ 105 __aligned_u64 rq_len; 106 }; 107 108 struct qedr_create_qp_uresp { 109 __u32 qp_id; 110 __u32 atomic_supported; 111 112 /* SQ */ 113 __u32 sq_db_offset; 114 __u16 sq_icid; 115 116 /* RQ */ 117 __u32 rq_db_offset; 118 __u16 rq_icid; 119 120 __u32 rq_db2_offset; 121 __u32 reserved; 122 123 /* address of SQ doorbell recovery user entry */ 124 __aligned_u64 sq_db_rec_addr; 125 126 /* address of RQ doorbell recovery user entry */ 127 __aligned_u64 rq_db_rec_addr; 128 129 }; 130 131 struct qedr_create_srq_ureq { 132 /* user space virtual address of producer pair */ 133 __aligned_u64 prod_pair_addr; 134 135 /* user space virtual address of SRQ buffer */ 136 __aligned_u64 srq_addr; 137 138 /* length of SRQ buffer */ 139 __aligned_u64 srq_len; 140 }; 141 142 struct qedr_create_srq_uresp { 143 __u16 srq_id; 144 __u16 reserved0; 145 __u32 reserved1; 146 }; 147 148 /* doorbell recovery entry allocated and populated by userspace doorbelling 149 * entities and mapped to kernel. Kernel uses this to register doorbell 150 * information with doorbell drop recovery mechanism. 151 */ 152 struct qedr_user_db_rec { 153 __aligned_u64 db_data; /* doorbell data */ 154 }; 155 156 #endif /* __QEDR_USER_H__ */ 157