1/* 2 * Copyright (c) 2012-2016 VMware, Inc. All rights reserved. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of EITHER the GNU General Public License 6 * version 2 as published by the Free Software Foundation or the BSD 7 * 2-Clause License. This program is distributed in the hope that it 8 * will be useful, but WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED 9 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 10 * See the GNU General Public License version 2 for more details at 11 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html. 12 * 13 * You should have received a copy of the GNU General Public License 14 * along with this program available in the file COPYING in the main 15 * directory of this source tree. 16 * 17 * The BSD 2-Clause License 18 * 19 * Redistribution and use in source and binary forms, with or 20 * without modification, are permitted provided that the following 21 * conditions are met: 22 * 23 * - Redistributions of source code must retain the above 24 * copyright notice, this list of conditions and the following 25 * disclaimer. 26 * 27 * - Redistributions in binary form must reproduce the above 28 * copyright notice, this list of conditions and the following 29 * disclaimer in the documentation and/or other materials 30 * provided with the distribution. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 34 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 35 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 36 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 37 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 38 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 39 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 40 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 41 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 42 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 43 * OF THE POSSIBILITY OF SUCH DAMAGE. 44 */ 45 46#ifndef __VMW_PVRDMA_ABI_H__ 47#define __VMW_PVRDMA_ABI_H__ 48 49#include <linux/types.h> 50 51#define PVRDMA_UVERBS_ABI_VERSION 3 /* ABI Version. */ 52#define PVRDMA_UAR_HANDLE_MASK 0x00FFFFFF /* Bottom 24 bits. */ 53#define PVRDMA_UAR_QP_OFFSET 0 /* QP doorbell. */ 54#define PVRDMA_UAR_QP_SEND BIT(30) /* Send bit. */ 55#define PVRDMA_UAR_QP_RECV BIT(31) /* Recv bit. */ 56#define PVRDMA_UAR_CQ_OFFSET 4 /* CQ doorbell. */ 57#define PVRDMA_UAR_CQ_ARM_SOL BIT(29) /* Arm solicited bit. */ 58#define PVRDMA_UAR_CQ_ARM BIT(30) /* Arm bit. */ 59#define PVRDMA_UAR_CQ_POLL BIT(31) /* Poll bit. */ 60 61enum pvrdma_wr_opcode { 62 PVRDMA_WR_RDMA_WRITE, 63 PVRDMA_WR_RDMA_WRITE_WITH_IMM, 64 PVRDMA_WR_SEND, 65 PVRDMA_WR_SEND_WITH_IMM, 66 PVRDMA_WR_RDMA_READ, 67 PVRDMA_WR_ATOMIC_CMP_AND_SWP, 68 PVRDMA_WR_ATOMIC_FETCH_AND_ADD, 69 PVRDMA_WR_LSO, 70 PVRDMA_WR_SEND_WITH_INV, 71 PVRDMA_WR_RDMA_READ_WITH_INV, 72 PVRDMA_WR_LOCAL_INV, 73 PVRDMA_WR_FAST_REG_MR, 74 PVRDMA_WR_MASKED_ATOMIC_CMP_AND_SWP, 75 PVRDMA_WR_MASKED_ATOMIC_FETCH_AND_ADD, 76 PVRDMA_WR_BIND_MW, 77 PVRDMA_WR_REG_SIG_MR, 78}; 79 80enum pvrdma_wc_status { 81 PVRDMA_WC_SUCCESS, 82 PVRDMA_WC_LOC_LEN_ERR, 83 PVRDMA_WC_LOC_QP_OP_ERR, 84 PVRDMA_WC_LOC_EEC_OP_ERR, 85 PVRDMA_WC_LOC_PROT_ERR, 86 PVRDMA_WC_WR_FLUSH_ERR, 87 PVRDMA_WC_MW_BIND_ERR, 88 PVRDMA_WC_BAD_RESP_ERR, 89 PVRDMA_WC_LOC_ACCESS_ERR, 90 PVRDMA_WC_REM_INV_REQ_ERR, 91 PVRDMA_WC_REM_ACCESS_ERR, 92 PVRDMA_WC_REM_OP_ERR, 93 PVRDMA_WC_RETRY_EXC_ERR, 94 PVRDMA_WC_RNR_RETRY_EXC_ERR, 95 PVRDMA_WC_LOC_RDD_VIOL_ERR, 96 PVRDMA_WC_REM_INV_RD_REQ_ERR, 97 PVRDMA_WC_REM_ABORT_ERR, 98 PVRDMA_WC_INV_EECN_ERR, 99 PVRDMA_WC_INV_EEC_STATE_ERR, 100 PVRDMA_WC_FATAL_ERR, 101 PVRDMA_WC_RESP_TIMEOUT_ERR, 102 PVRDMA_WC_GENERAL_ERR, 103}; 104 105enum pvrdma_wc_opcode { 106 PVRDMA_WC_SEND, 107 PVRDMA_WC_RDMA_WRITE, 108 PVRDMA_WC_RDMA_READ, 109 PVRDMA_WC_COMP_SWAP, 110 PVRDMA_WC_FETCH_ADD, 111 PVRDMA_WC_BIND_MW, 112 PVRDMA_WC_LSO, 113 PVRDMA_WC_LOCAL_INV, 114 PVRDMA_WC_FAST_REG_MR, 115 PVRDMA_WC_MASKED_COMP_SWAP, 116 PVRDMA_WC_MASKED_FETCH_ADD, 117 PVRDMA_WC_RECV = 1 << 7, 118 PVRDMA_WC_RECV_RDMA_WITH_IMM, 119}; 120 121enum pvrdma_wc_flags { 122 PVRDMA_WC_GRH = 1 << 0, 123 PVRDMA_WC_WITH_IMM = 1 << 1, 124 PVRDMA_WC_WITH_INVALIDATE = 1 << 2, 125 PVRDMA_WC_IP_CSUM_OK = 1 << 3, 126 PVRDMA_WC_WITH_SMAC = 1 << 4, 127 PVRDMA_WC_WITH_VLAN = 1 << 5, 128 PVRDMA_WC_FLAGS_MAX = PVRDMA_WC_WITH_VLAN, 129}; 130 131struct pvrdma_alloc_ucontext_resp { 132 __u32 qp_tab_size; 133 __u32 reserved; 134}; 135 136struct pvrdma_alloc_pd_resp { 137 __u32 pdn; 138 __u32 reserved; 139}; 140 141struct pvrdma_create_cq { 142 __u64 buf_addr; 143 __u32 buf_size; 144 __u32 reserved; 145}; 146 147struct pvrdma_create_cq_resp { 148 __u32 cqn; 149 __u32 reserved; 150}; 151 152struct pvrdma_resize_cq { 153 __u64 buf_addr; 154 __u32 buf_size; 155 __u32 reserved; 156}; 157 158struct pvrdma_create_srq { 159 __u64 buf_addr; 160}; 161 162struct pvrdma_create_srq_resp { 163 __u32 srqn; 164 __u32 reserved; 165}; 166 167struct pvrdma_create_qp { 168 __u64 rbuf_addr; 169 __u64 sbuf_addr; 170 __u32 rbuf_size; 171 __u32 sbuf_size; 172 __u64 qp_addr; 173}; 174 175/* PVRDMA masked atomic compare and swap */ 176struct pvrdma_ex_cmp_swap { 177 __u64 swap_val; 178 __u64 compare_val; 179 __u64 swap_mask; 180 __u64 compare_mask; 181}; 182 183/* PVRDMA masked atomic fetch and add */ 184struct pvrdma_ex_fetch_add { 185 __u64 add_val; 186 __u64 field_boundary; 187}; 188 189/* PVRDMA address vector. */ 190struct pvrdma_av { 191 __u32 port_pd; 192 __u32 sl_tclass_flowlabel; 193 __u8 dgid[16]; 194 __u8 src_path_bits; 195 __u8 gid_index; 196 __u8 stat_rate; 197 __u8 hop_limit; 198 __u8 dmac[6]; 199 __u8 reserved[6]; 200}; 201 202/* PVRDMA scatter/gather entry */ 203struct pvrdma_sge { 204 __u64 addr; 205 __u32 length; 206 __u32 lkey; 207}; 208 209/* PVRDMA receive queue work request */ 210struct pvrdma_rq_wqe_hdr { 211 __u64 wr_id; /* wr id */ 212 __u32 num_sge; /* size of s/g array */ 213 __u32 total_len; /* reserved */ 214}; 215/* Use pvrdma_sge (ib_sge) for receive queue s/g array elements. */ 216 217/* PVRDMA send queue work request */ 218struct pvrdma_sq_wqe_hdr { 219 __u64 wr_id; /* wr id */ 220 __u32 num_sge; /* size of s/g array */ 221 __u32 total_len; /* reserved */ 222 __u32 opcode; /* operation type */ 223 __u32 send_flags; /* wr flags */ 224 union { 225 __u32 imm_data; 226 __u32 invalidate_rkey; 227 } ex; 228 __u32 reserved; 229 union { 230 struct { 231 __u64 remote_addr; 232 __u32 rkey; 233 __u8 reserved[4]; 234 } rdma; 235 struct { 236 __u64 remote_addr; 237 __u64 compare_add; 238 __u64 swap; 239 __u32 rkey; 240 __u32 reserved; 241 } atomic; 242 struct { 243 __u64 remote_addr; 244 __u32 log_arg_sz; 245 __u32 rkey; 246 union { 247 struct pvrdma_ex_cmp_swap cmp_swap; 248 struct pvrdma_ex_fetch_add fetch_add; 249 } wr_data; 250 } masked_atomics; 251 struct { 252 __u64 iova_start; 253 __u64 pl_pdir_dma; 254 __u32 page_shift; 255 __u32 page_list_len; 256 __u32 length; 257 __u32 access_flags; 258 __u32 rkey; 259 } fast_reg; 260 struct { 261 __u32 remote_qpn; 262 __u32 remote_qkey; 263 struct pvrdma_av av; 264 } ud; 265 } wr; 266}; 267/* Use pvrdma_sge (ib_sge) for send queue s/g array elements. */ 268 269/* Completion queue element. */ 270struct pvrdma_cqe { 271 __u64 wr_id; 272 __u64 qp; 273 __u32 opcode; 274 __u32 status; 275 __u32 byte_len; 276 __u32 imm_data; 277 __u32 src_qp; 278 __u32 wc_flags; 279 __u32 vendor_err; 280 __u16 pkey_index; 281 __u16 slid; 282 __u8 sl; 283 __u8 dlid_path_bits; 284 __u8 port_num; 285 __u8 smac[6]; 286 __u8 reserved2[7]; /* Pad to next power of 2 (64). */ 287}; 288 289#endif /* __VMW_PVRDMA_ABI_H__ */ 290