drivers/infiniband/include/ib_user_verbs.h

   1 /*
   2  * Copyright (c) 2005 Topspin Communications.  All rights reserved.
   3  * Copyright (c) 2005 Cisco Systems.  All rights reserved.
   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  * $Id: ib_user_verbs.h 2708 2005-06-24 17:27:21Z roland $
  34  */
  35
  36 #ifndef IB_USER_VERBS_H
  37 #define IB_USER_VERBS_H
  38
  39 #include <linux/types.h>
  40
  41 /*
  42  * Increment this value if any changes that break userspace ABI
  43  * compatibility are made.
  44  */
  45 #define IB_USER_VERBS_ABI_VERSION       1
  46
  47 enum {
  48         IB_USER_VERBS_CMD_QUERY_PARAMS,
  49         IB_USER_VERBS_CMD_GET_CONTEXT,
  50         IB_USER_VERBS_CMD_QUERY_DEVICE,
  51         IB_USER_VERBS_CMD_QUERY_PORT,
  52         IB_USER_VERBS_CMD_QUERY_GID,
  53         IB_USER_VERBS_CMD_QUERY_PKEY,
  54         IB_USER_VERBS_CMD_ALLOC_PD,
  55         IB_USER_VERBS_CMD_DEALLOC_PD,
  56         IB_USER_VERBS_CMD_CREATE_AH,
  57         IB_USER_VERBS_CMD_MODIFY_AH,
  58         IB_USER_VERBS_CMD_QUERY_AH,
  59         IB_USER_VERBS_CMD_DESTROY_AH,
  60         IB_USER_VERBS_CMD_REG_MR,
  61         IB_USER_VERBS_CMD_REG_SMR,
  62         IB_USER_VERBS_CMD_REREG_MR,
  63         IB_USER_VERBS_CMD_QUERY_MR,
  64         IB_USER_VERBS_CMD_DEREG_MR,
  65         IB_USER_VERBS_CMD_ALLOC_MW,
  66         IB_USER_VERBS_CMD_BIND_MW,
  67         IB_USER_VERBS_CMD_DEALLOC_MW,
  68         IB_USER_VERBS_CMD_CREATE_CQ,
  69         IB_USER_VERBS_CMD_RESIZE_CQ,
  70         IB_USER_VERBS_CMD_DESTROY_CQ,
  71         IB_USER_VERBS_CMD_POLL_CQ,
  72         IB_USER_VERBS_CMD_PEEK_CQ,
  73         IB_USER_VERBS_CMD_REQ_NOTIFY_CQ,
  74         IB_USER_VERBS_CMD_CREATE_QP,
  75         IB_USER_VERBS_CMD_QUERY_QP,
  76         IB_USER_VERBS_CMD_MODIFY_QP,
  77         IB_USER_VERBS_CMD_DESTROY_QP,
  78         IB_USER_VERBS_CMD_POST_SEND,
  79         IB_USER_VERBS_CMD_POST_RECV,
  80         IB_USER_VERBS_CMD_ATTACH_MCAST,
  81         IB_USER_VERBS_CMD_DETACH_MCAST
  82 };
  83
  84 /*
  85  * Make sure that all structs defined in this file remain laid out so
  86  * that they pack the same way on 32-bit and 64-bit architectures (to
  87  * avoid incompatibility between 32-bit userspace and 64-bit kernels).
  88  * In particular do not use pointer types -- pass pointers in __u64
  89  * instead.
  90  */
  91
  92 struct ib_uverbs_async_event_desc {
  93         __u64 element;
  94         __u32 event_type;       /* enum ib_event_type */
  95         __u32 reserved;
  96 };
  97
  98 struct ib_uverbs_comp_event_desc {
  99         __u64 cq_handle;
 100 };
 101
 102 /*
 103  * All commands from userspace should start with a __u32 command field
 104  * followed by __u16 in_words and out_words fields (which give the
 105  * length of the command block and response buffer if any in 32-bit
 106  * words).  The kernel driver will read these fields first and read
 107  * the rest of the command struct based on these value.
 108  */
 109
 110 struct ib_uverbs_cmd_hdr {
 111         __u32 command;
 112         __u16 in_words;
 113         __u16 out_words;
 114 };
 115
 116 /*
 117  * No driver_data for "query params" command, since this is intended
 118  * to be a core function with no possible device dependence.
 119  */
 120 struct ib_uverbs_query_params {
 121         __u64 response;
 122 };
 123
 124 struct ib_uverbs_query_params_resp {
 125         __u32 num_cq_events;
 126 };
 127
 128 struct ib_uverbs_get_context {
 129         __u64 response;
 130         __u64 cq_fd_tab;
 131         __u64 driver_data[0];
 132 };
 133
 134 struct ib_uverbs_get_context_resp {
 135         __u32 async_fd;
 136         __u32 reserved;
 137 };
 138
 139 struct ib_uverbs_query_device {
 140         __u64 response;
 141         __u64 driver_data[0];
 142 };
 143
 144 struct ib_uverbs_query_device_resp {
 145         __u64 fw_ver;
 146         __be64 node_guid;
 147         __be64 sys_image_guid;
 148         __u64 max_mr_size;
 149         __u64 page_size_cap;
 150         __u32 vendor_id;
 151         __u32 vendor_part_id;
 152         __u32 hw_ver;
 153         __u32 max_qp;
 154         __u32 max_qp_wr;
 155         __u32 device_cap_flags;
 156         __u32 max_sge;
 157         __u32 max_sge_rd;
 158         __u32 max_cq;
 159         __u32 max_cqe;
 160         __u32 max_mr;
 161         __u32 max_pd;
 162         __u32 max_qp_rd_atom;
 163         __u32 max_ee_rd_atom;
 164         __u32 max_res_rd_atom;
 165         __u32 max_qp_init_rd_atom;
 166         __u32 max_ee_init_rd_atom;
 167         __u32 atomic_cap;
 168         __u32 max_ee;
 169         __u32 max_rdd;
 170         __u32 max_mw;
 171         __u32 max_raw_ipv6_qp;
 172         __u32 max_raw_ethy_qp;
 173         __u32 max_mcast_grp;
 174         __u32 max_mcast_qp_attach;
 175         __u32 max_total_mcast_qp_attach;
 176         __u32 max_ah;
 177         __u32 max_fmr;
 178         __u32 max_map_per_fmr;
 179         __u32 max_srq;
 180         __u32 max_srq_wr;
 181         __u32 max_srq_sge;
 182         __u16 max_pkeys;
 183         __u8  local_ca_ack_delay;
 184         __u8  phys_port_cnt;
 185         __u8  reserved[4];
 186 };
 187
 188 struct ib_uverbs_query_port {
 189         __u64 response;
 190         __u8  port_num;
 191         __u8  reserved[7];
 192         __u64 driver_data[0];
 193 };
 194
 195 struct ib_uverbs_query_port_resp {
 196         __u32 port_cap_flags;
 197         __u32 max_msg_sz;
 198         __u32 bad_pkey_cntr;
 199         __u32 qkey_viol_cntr;
 200         __u32 gid_tbl_len;
 201         __u16 pkey_tbl_len;
 202         __u16 lid;
 203         __u16 sm_lid;
 204         __u8  state;
 205         __u8  max_mtu;
 206         __u8  active_mtu;
 207         __u8  lmc;
 208         __u8  max_vl_num;
 209         __u8  sm_sl;
 210         __u8  subnet_timeout;
 211         __u8  init_type_reply;
 212         __u8  active_width;
 213         __u8  active_speed;
 214         __u8  phys_state;
 215         __u8  reserved[3];
 216 };
 217
 218 struct ib_uverbs_query_gid {
 219         __u64 response;
 220         __u8  port_num;
 221         __u8  index;
 222         __u8  reserved[6];
 223         __u64 driver_data[0];
 224 };
 225
 226 struct ib_uverbs_query_gid_resp {
 227         __u8  gid[16];
 228 };
 229
 230 struct ib_uverbs_query_pkey {
 231         __u64 response;
 232         __u8  port_num;
 233         __u8  index;
 234         __u8  reserved[6];
 235         __u64 driver_data[0];
 236 };
 237
 238 struct ib_uverbs_query_pkey_resp {
 239         __u16 pkey;
 240         __u16 reserved;
 241 };
 242
 243 struct ib_uverbs_alloc_pd {
 244         __u64 response;
 245         __u64 driver_data[0];
 246 };
 247
 248 struct ib_uverbs_alloc_pd_resp {
 249         __u32 pd_handle;
 250 };
 251
 252 struct ib_uverbs_dealloc_pd {
 253         __u32 pd_handle;
 254 };
 255
 256 struct ib_uverbs_reg_mr {
 257         __u64 response;
 258         __u64 start;
 259         __u64 length;
 260         __u64 hca_va;
 261         __u32 pd_handle;
 262         __u32 access_flags;
 263         __u64 driver_data[0];
 264 };
 265
 266 struct ib_uverbs_reg_mr_resp {
 267         __u32 mr_handle;
 268         __u32 lkey;
 269         __u32 rkey;
 270 };
 271
 272 struct ib_uverbs_dereg_mr {
 273         __u32 mr_handle;
 274 };
 275
 276 struct ib_uverbs_create_cq {
 277         __u64 response;
 278         __u64 user_handle;
 279         __u32 cqe;
 280         __u32 event_handler;
 281         __u64 driver_data[0];
 282 };
 283
 284 struct ib_uverbs_create_cq_resp {
 285         __u32 cq_handle;
 286         __u32 cqe;
 287 };
 288
 289 struct ib_uverbs_destroy_cq {
 290         __u32 cq_handle;
 291 };
 292
 293 struct ib_uverbs_create_qp {
 294         __u64 response;
 295         __u64 user_handle;
 296         __u32 pd_handle;
 297         __u32 send_cq_handle;
 298         __u32 recv_cq_handle;
 299         __u32 srq_handle;
 300         __u32 max_send_wr;
 301         __u32 max_recv_wr;
 302         __u32 max_send_sge;
 303         __u32 max_recv_sge;
 304         __u32 max_inline_data;
 305         __u8  sq_sig_all;
 306         __u8  qp_type;
 307         __u8  is_srq;
 308         __u8  reserved;
 309         __u64 driver_data[0];
 310 };
 311
 312 struct ib_uverbs_create_qp_resp {
 313         __u32 qp_handle;
 314         __u32 qpn;
 315 };
 316
 317 /*
 318  * This struct needs to remain a multiple of 8 bytes to keep the
 319  * alignment of the modify QP parameters.
 320  */
 321 struct ib_uverbs_qp_dest {
 322         __u8  dgid[16];
 323         __u32 flow_label;
 324         __u16 dlid;
 325         __u16 reserved;
 326         __u8  sgid_index;
 327         __u8  hop_limit;
 328         __u8  traffic_class;
 329         __u8  sl;
 330         __u8  src_path_bits;
 331         __u8  static_rate;
 332         __u8  is_global;
 333         __u8  port_num;
 334 };
 335
 336 struct ib_uverbs_modify_qp {
 337         struct ib_uverbs_qp_dest dest;
 338         struct ib_uverbs_qp_dest alt_dest;
 339         __u32 qp_handle;
 340         __u32 attr_mask;
 341         __u32 qkey;
 342         __u32 rq_psn;
 343         __u32 sq_psn;
 344         __u32 dest_qp_num;
 345         __u32 qp_access_flags;
 346         __u16 pkey_index;
 347         __u16 alt_pkey_index;
 348         __u8  qp_state;
 349         __u8  cur_qp_state;
 350         __u8  path_mtu;
 351         __u8  path_mig_state;
 352         __u8  en_sqd_async_notify;
 353         __u8  max_rd_atomic;
 354         __u8  max_dest_rd_atomic;
 355         __u8  min_rnr_timer;
 356         __u8  port_num;
 357         __u8  timeout;
 358         __u8  retry_cnt;
 359         __u8  rnr_retry;
 360         __u8  alt_port_num;
 361         __u8  alt_timeout;
 362         __u8  reserved[2];
 363         __u64 driver_data[0];
 364 };
 365
 366 struct ib_uverbs_modify_qp_resp {
 367 };
 368
 369 struct ib_uverbs_destroy_qp {
 370         __u32 qp_handle;
 371 };
 372
 373 struct ib_uverbs_attach_mcast {
 374         __u8  gid[16];
 375         __u32 qp_handle;
 376         __u16 mlid;
 377         __u16 reserved;
 378         __u64 driver_data[0];
 379 };
 380
 381 struct ib_uverbs_detach_mcast {
 382         __u8  gid[16];
 383         __u32 qp_handle;
 384         __u16 mlid;
 385         __u16 reserved;
 386         __u64 driver_data[0];
 387 };
 388
 389 #endif /* IB_USER_VERBS_H */