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 __PVRDMA_VERBS_H__ 47 #define __PVRDMA_VERBS_H__ 48 49 #include <linux/types.h> 50 51 union pvrdma_gid { 52 u8 raw[16]; 53 struct { 54 __be64 subnet_prefix; 55 __be64 interface_id; 56 } global; 57 }; 58 59 enum pvrdma_link_layer { 60 PVRDMA_LINK_LAYER_UNSPECIFIED, 61 PVRDMA_LINK_LAYER_INFINIBAND, 62 PVRDMA_LINK_LAYER_ETHERNET, 63 }; 64 65 enum pvrdma_mtu { 66 PVRDMA_MTU_256 = 1, 67 PVRDMA_MTU_512 = 2, 68 PVRDMA_MTU_1024 = 3, 69 PVRDMA_MTU_2048 = 4, 70 PVRDMA_MTU_4096 = 5, 71 }; 72 73 static inline int pvrdma_mtu_enum_to_int(enum pvrdma_mtu mtu) 74 { 75 switch (mtu) { 76 case PVRDMA_MTU_256: return 256; 77 case PVRDMA_MTU_512: return 512; 78 case PVRDMA_MTU_1024: return 1024; 79 case PVRDMA_MTU_2048: return 2048; 80 case PVRDMA_MTU_4096: return 4096; 81 default: return -1; 82 } 83 } 84 85 static inline enum pvrdma_mtu pvrdma_mtu_int_to_enum(int mtu) 86 { 87 switch (mtu) { 88 case 256: return PVRDMA_MTU_256; 89 case 512: return PVRDMA_MTU_512; 90 case 1024: return PVRDMA_MTU_1024; 91 case 2048: return PVRDMA_MTU_2048; 92 case 4096: 93 default: return PVRDMA_MTU_4096; 94 } 95 } 96 97 enum pvrdma_port_state { 98 PVRDMA_PORT_NOP = 0, 99 PVRDMA_PORT_DOWN = 1, 100 PVRDMA_PORT_INIT = 2, 101 PVRDMA_PORT_ARMED = 3, 102 PVRDMA_PORT_ACTIVE = 4, 103 PVRDMA_PORT_ACTIVE_DEFER = 5, 104 }; 105 106 enum pvrdma_port_cap_flags { 107 PVRDMA_PORT_SM = 1 << 1, 108 PVRDMA_PORT_NOTICE_SUP = 1 << 2, 109 PVRDMA_PORT_TRAP_SUP = 1 << 3, 110 PVRDMA_PORT_OPT_IPD_SUP = 1 << 4, 111 PVRDMA_PORT_AUTO_MIGR_SUP = 1 << 5, 112 PVRDMA_PORT_SL_MAP_SUP = 1 << 6, 113 PVRDMA_PORT_MKEY_NVRAM = 1 << 7, 114 PVRDMA_PORT_PKEY_NVRAM = 1 << 8, 115 PVRDMA_PORT_LED_INFO_SUP = 1 << 9, 116 PVRDMA_PORT_SM_DISABLED = 1 << 10, 117 PVRDMA_PORT_SYS_IMAGE_GUID_SUP = 1 << 11, 118 PVRDMA_PORT_PKEY_SW_EXT_PORT_TRAP_SUP = 1 << 12, 119 PVRDMA_PORT_EXTENDED_SPEEDS_SUP = 1 << 14, 120 PVRDMA_PORT_CM_SUP = 1 << 16, 121 PVRDMA_PORT_SNMP_TUNNEL_SUP = 1 << 17, 122 PVRDMA_PORT_REINIT_SUP = 1 << 18, 123 PVRDMA_PORT_DEVICE_MGMT_SUP = 1 << 19, 124 PVRDMA_PORT_VENDOR_CLASS_SUP = 1 << 20, 125 PVRDMA_PORT_DR_NOTICE_SUP = 1 << 21, 126 PVRDMA_PORT_CAP_MASK_NOTICE_SUP = 1 << 22, 127 PVRDMA_PORT_BOOT_MGMT_SUP = 1 << 23, 128 PVRDMA_PORT_LINK_LATENCY_SUP = 1 << 24, 129 PVRDMA_PORT_CLIENT_REG_SUP = 1 << 25, 130 PVRDMA_PORT_IP_BASED_GIDS = 1 << 26, 131 PVRDMA_PORT_CAP_FLAGS_MAX = PVRDMA_PORT_IP_BASED_GIDS, 132 }; 133 134 enum pvrdma_port_width { 135 PVRDMA_WIDTH_1X = 1, 136 PVRDMA_WIDTH_4X = 2, 137 PVRDMA_WIDTH_8X = 4, 138 PVRDMA_WIDTH_12X = 8, 139 }; 140 141 static inline int pvrdma_width_enum_to_int(enum pvrdma_port_width width) 142 { 143 switch (width) { 144 case PVRDMA_WIDTH_1X: return 1; 145 case PVRDMA_WIDTH_4X: return 4; 146 case PVRDMA_WIDTH_8X: return 8; 147 case PVRDMA_WIDTH_12X: return 12; 148 default: return -1; 149 } 150 } 151 152 enum pvrdma_port_speed { 153 PVRDMA_SPEED_SDR = 1, 154 PVRDMA_SPEED_DDR = 2, 155 PVRDMA_SPEED_QDR = 4, 156 PVRDMA_SPEED_FDR10 = 8, 157 PVRDMA_SPEED_FDR = 16, 158 PVRDMA_SPEED_EDR = 32, 159 }; 160 161 struct pvrdma_port_attr { 162 enum pvrdma_port_state state; 163 enum pvrdma_mtu max_mtu; 164 enum pvrdma_mtu active_mtu; 165 u32 gid_tbl_len; 166 u32 port_cap_flags; 167 u32 max_msg_sz; 168 u32 bad_pkey_cntr; 169 u32 qkey_viol_cntr; 170 u16 pkey_tbl_len; 171 u16 lid; 172 u16 sm_lid; 173 u8 lmc; 174 u8 max_vl_num; 175 u8 sm_sl; 176 u8 subnet_timeout; 177 u8 init_type_reply; 178 u8 active_width; 179 u8 active_speed; 180 u8 phys_state; 181 u8 reserved[2]; 182 }; 183 184 struct pvrdma_global_route { 185 union pvrdma_gid dgid; 186 u32 flow_label; 187 u8 sgid_index; 188 u8 hop_limit; 189 u8 traffic_class; 190 u8 reserved; 191 }; 192 193 struct pvrdma_grh { 194 __be32 version_tclass_flow; 195 __be16 paylen; 196 u8 next_hdr; 197 u8 hop_limit; 198 union pvrdma_gid sgid; 199 union pvrdma_gid dgid; 200 }; 201 202 enum pvrdma_ah_flags { 203 PVRDMA_AH_GRH = 1, 204 }; 205 206 enum pvrdma_rate { 207 PVRDMA_RATE_PORT_CURRENT = 0, 208 PVRDMA_RATE_2_5_GBPS = 2, 209 PVRDMA_RATE_5_GBPS = 5, 210 PVRDMA_RATE_10_GBPS = 3, 211 PVRDMA_RATE_20_GBPS = 6, 212 PVRDMA_RATE_30_GBPS = 4, 213 PVRDMA_RATE_40_GBPS = 7, 214 PVRDMA_RATE_60_GBPS = 8, 215 PVRDMA_RATE_80_GBPS = 9, 216 PVRDMA_RATE_120_GBPS = 10, 217 PVRDMA_RATE_14_GBPS = 11, 218 PVRDMA_RATE_56_GBPS = 12, 219 PVRDMA_RATE_112_GBPS = 13, 220 PVRDMA_RATE_168_GBPS = 14, 221 PVRDMA_RATE_25_GBPS = 15, 222 PVRDMA_RATE_100_GBPS = 16, 223 PVRDMA_RATE_200_GBPS = 17, 224 PVRDMA_RATE_300_GBPS = 18, 225 }; 226 227 struct pvrdma_ah_attr { 228 struct pvrdma_global_route grh; 229 u16 dlid; 230 u16 vlan_id; 231 u8 sl; 232 u8 src_path_bits; 233 u8 static_rate; 234 u8 ah_flags; 235 u8 port_num; 236 u8 dmac[6]; 237 u8 reserved; 238 }; 239 240 enum pvrdma_cq_notify_flags { 241 PVRDMA_CQ_SOLICITED = 1 << 0, 242 PVRDMA_CQ_NEXT_COMP = 1 << 1, 243 PVRDMA_CQ_SOLICITED_MASK = PVRDMA_CQ_SOLICITED | 244 PVRDMA_CQ_NEXT_COMP, 245 PVRDMA_CQ_REPORT_MISSED_EVENTS = 1 << 2, 246 }; 247 248 struct pvrdma_qp_cap { 249 u32 max_send_wr; 250 u32 max_recv_wr; 251 u32 max_send_sge; 252 u32 max_recv_sge; 253 u32 max_inline_data; 254 u32 reserved; 255 }; 256 257 enum pvrdma_sig_type { 258 PVRDMA_SIGNAL_ALL_WR, 259 PVRDMA_SIGNAL_REQ_WR, 260 }; 261 262 enum pvrdma_qp_type { 263 PVRDMA_QPT_SMI, 264 PVRDMA_QPT_GSI, 265 PVRDMA_QPT_RC, 266 PVRDMA_QPT_UC, 267 PVRDMA_QPT_UD, 268 PVRDMA_QPT_RAW_IPV6, 269 PVRDMA_QPT_RAW_ETHERTYPE, 270 PVRDMA_QPT_RAW_PACKET = 8, 271 PVRDMA_QPT_XRC_INI = 9, 272 PVRDMA_QPT_XRC_TGT, 273 PVRDMA_QPT_MAX, 274 }; 275 276 enum pvrdma_qp_create_flags { 277 PVRDMA_QP_CREATE_IPOPVRDMA_UD_LSO = 1 << 0, 278 PVRDMA_QP_CREATE_BLOCK_MULTICAST_LOOPBACK = 1 << 1, 279 }; 280 281 enum pvrdma_qp_attr_mask { 282 PVRDMA_QP_STATE = 1 << 0, 283 PVRDMA_QP_CUR_STATE = 1 << 1, 284 PVRDMA_QP_EN_SQD_ASYNC_NOTIFY = 1 << 2, 285 PVRDMA_QP_ACCESS_FLAGS = 1 << 3, 286 PVRDMA_QP_PKEY_INDEX = 1 << 4, 287 PVRDMA_QP_PORT = 1 << 5, 288 PVRDMA_QP_QKEY = 1 << 6, 289 PVRDMA_QP_AV = 1 << 7, 290 PVRDMA_QP_PATH_MTU = 1 << 8, 291 PVRDMA_QP_TIMEOUT = 1 << 9, 292 PVRDMA_QP_RETRY_CNT = 1 << 10, 293 PVRDMA_QP_RNR_RETRY = 1 << 11, 294 PVRDMA_QP_RQ_PSN = 1 << 12, 295 PVRDMA_QP_MAX_QP_RD_ATOMIC = 1 << 13, 296 PVRDMA_QP_ALT_PATH = 1 << 14, 297 PVRDMA_QP_MIN_RNR_TIMER = 1 << 15, 298 PVRDMA_QP_SQ_PSN = 1 << 16, 299 PVRDMA_QP_MAX_DEST_RD_ATOMIC = 1 << 17, 300 PVRDMA_QP_PATH_MIG_STATE = 1 << 18, 301 PVRDMA_QP_CAP = 1 << 19, 302 PVRDMA_QP_DEST_QPN = 1 << 20, 303 PVRDMA_QP_ATTR_MASK_MAX = PVRDMA_QP_DEST_QPN, 304 }; 305 306 enum pvrdma_qp_state { 307 PVRDMA_QPS_RESET, 308 PVRDMA_QPS_INIT, 309 PVRDMA_QPS_RTR, 310 PVRDMA_QPS_RTS, 311 PVRDMA_QPS_SQD, 312 PVRDMA_QPS_SQE, 313 PVRDMA_QPS_ERR, 314 }; 315 316 enum pvrdma_mig_state { 317 PVRDMA_MIG_MIGRATED, 318 PVRDMA_MIG_REARM, 319 PVRDMA_MIG_ARMED, 320 }; 321 322 enum pvrdma_mw_type { 323 PVRDMA_MW_TYPE_1 = 1, 324 PVRDMA_MW_TYPE_2 = 2, 325 }; 326 327 struct pvrdma_srq_attr { 328 u32 max_wr; 329 u32 max_sge; 330 u32 srq_limit; 331 u32 reserved; 332 }; 333 334 struct pvrdma_qp_attr { 335 enum pvrdma_qp_state qp_state; 336 enum pvrdma_qp_state cur_qp_state; 337 enum pvrdma_mtu path_mtu; 338 enum pvrdma_mig_state path_mig_state; 339 u32 qkey; 340 u32 rq_psn; 341 u32 sq_psn; 342 u32 dest_qp_num; 343 u32 qp_access_flags; 344 u16 pkey_index; 345 u16 alt_pkey_index; 346 u8 en_sqd_async_notify; 347 u8 sq_draining; 348 u8 max_rd_atomic; 349 u8 max_dest_rd_atomic; 350 u8 min_rnr_timer; 351 u8 port_num; 352 u8 timeout; 353 u8 retry_cnt; 354 u8 rnr_retry; 355 u8 alt_port_num; 356 u8 alt_timeout; 357 u8 reserved[5]; 358 struct pvrdma_qp_cap cap; 359 struct pvrdma_ah_attr ah_attr; 360 struct pvrdma_ah_attr alt_ah_attr; 361 }; 362 363 enum pvrdma_send_flags { 364 PVRDMA_SEND_FENCE = 1 << 0, 365 PVRDMA_SEND_SIGNALED = 1 << 1, 366 PVRDMA_SEND_SOLICITED = 1 << 2, 367 PVRDMA_SEND_INLINE = 1 << 3, 368 PVRDMA_SEND_IP_CSUM = 1 << 4, 369 PVRDMA_SEND_FLAGS_MAX = PVRDMA_SEND_IP_CSUM, 370 }; 371 372 enum pvrdma_access_flags { 373 PVRDMA_ACCESS_LOCAL_WRITE = 1 << 0, 374 PVRDMA_ACCESS_REMOTE_WRITE = 1 << 1, 375 PVRDMA_ACCESS_REMOTE_READ = 1 << 2, 376 PVRDMA_ACCESS_REMOTE_ATOMIC = 1 << 3, 377 PVRDMA_ACCESS_MW_BIND = 1 << 4, 378 PVRDMA_ZERO_BASED = 1 << 5, 379 PVRDMA_ACCESS_ON_DEMAND = 1 << 6, 380 PVRDMA_ACCESS_FLAGS_MAX = PVRDMA_ACCESS_ON_DEMAND, 381 }; 382 383 int pvrdma_query_device(struct ib_device *ibdev, 384 struct ib_device_attr *props, 385 struct ib_udata *udata); 386 int pvrdma_query_port(struct ib_device *ibdev, u8 port, 387 struct ib_port_attr *props); 388 int pvrdma_query_gid(struct ib_device *ibdev, u8 port, 389 int index, union ib_gid *gid); 390 int pvrdma_query_pkey(struct ib_device *ibdev, u8 port, 391 u16 index, u16 *pkey); 392 enum rdma_link_layer pvrdma_port_link_layer(struct ib_device *ibdev, 393 u8 port); 394 int pvrdma_modify_device(struct ib_device *ibdev, int mask, 395 struct ib_device_modify *props); 396 int pvrdma_modify_port(struct ib_device *ibdev, u8 port, 397 int mask, struct ib_port_modify *props); 398 int pvrdma_mmap(struct ib_ucontext *context, struct vm_area_struct *vma); 399 struct ib_ucontext *pvrdma_alloc_ucontext(struct ib_device *ibdev, 400 struct ib_udata *udata); 401 int pvrdma_dealloc_ucontext(struct ib_ucontext *context); 402 struct ib_pd *pvrdma_alloc_pd(struct ib_device *ibdev, 403 struct ib_ucontext *context, 404 struct ib_udata *udata); 405 int pvrdma_dealloc_pd(struct ib_pd *ibpd); 406 struct ib_mr *pvrdma_get_dma_mr(struct ib_pd *pd, int acc); 407 struct ib_mr *pvrdma_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 408 u64 virt_addr, int access_flags, 409 struct ib_udata *udata); 410 int pvrdma_dereg_mr(struct ib_mr *mr); 411 struct ib_mr *pvrdma_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type, 412 u32 max_num_sg); 413 int pvrdma_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, 414 int sg_nents, unsigned int *sg_offset); 415 struct ib_cq *pvrdma_create_cq(struct ib_device *ibdev, 416 const struct ib_cq_init_attr *attr, 417 struct ib_ucontext *context, 418 struct ib_udata *udata); 419 int pvrdma_destroy_cq(struct ib_cq *cq); 420 int pvrdma_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc); 421 int pvrdma_req_notify_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags); 422 struct ib_ah *pvrdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr, 423 struct ib_udata *udata); 424 int pvrdma_destroy_ah(struct ib_ah *ah); 425 426 struct ib_srq *pvrdma_create_srq(struct ib_pd *pd, 427 struct ib_srq_init_attr *init_attr, 428 struct ib_udata *udata); 429 int pvrdma_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, 430 enum ib_srq_attr_mask attr_mask, struct ib_udata *udata); 431 int pvrdma_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr); 432 int pvrdma_destroy_srq(struct ib_srq *srq); 433 434 struct ib_qp *pvrdma_create_qp(struct ib_pd *pd, 435 struct ib_qp_init_attr *init_attr, 436 struct ib_udata *udata); 437 int pvrdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 438 int attr_mask, struct ib_udata *udata); 439 int pvrdma_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, 440 int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr); 441 int pvrdma_destroy_qp(struct ib_qp *qp); 442 int pvrdma_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr, 443 const struct ib_send_wr **bad_wr); 444 int pvrdma_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr, 445 const struct ib_recv_wr **bad_wr); 446 447 #endif /* __PVRDMA_VERBS_H__ */ 448