drivers/infiniband/hw/mlx5/devx.c

   1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
   2 /*
   3  * Copyright (c) 2018, Mellanox Technologies inc.  All rights reserved.
   4  */
   5
   6 #include <rdma/ib_user_verbs.h>
   7 #include <rdma/ib_verbs.h>
   8 #include <rdma/uverbs_types.h>
   9 #include <rdma/uverbs_ioctl.h>
  10 #include <rdma/mlx5_user_ioctl_cmds.h>
  11 #include <rdma/ib_umem.h>
  12 #include <rdma/uverbs_std_types.h>
  13 #include <linux/mlx5/driver.h>
  14 #include <linux/mlx5/fs.h>
  15 #include "mlx5_ib.h"
  16
  17 #define UVERBS_MODULE_NAME mlx5_ib
  18 #include <rdma/uverbs_named_ioctl.h>
  19
  20 #define MLX5_MAX_DESTROY_INBOX_SIZE_DW MLX5_ST_SZ_DW(delete_fte_in)
  21 struct devx_obj {
  22         struct mlx5_core_dev    *mdev;
  23         u64                     obj_id;
  24         u32                     dinlen; /* destroy inbox length */
  25         u32                     dinbox[MLX5_MAX_DESTROY_INBOX_SIZE_DW];
  26 };
  27
  28 struct devx_umem {
  29         struct mlx5_core_dev            *mdev;
  30         struct ib_umem                  *umem;
  31         u32                             page_offset;
  32         int                             page_shift;
  33         int                             ncont;
  34         u32                             dinlen;
  35         u32                             dinbox[MLX5_ST_SZ_DW(general_obj_in_cmd_hdr)];
  36 };
  37
  38 struct devx_umem_reg_cmd {
  39         void                            *in;
  40         u32                             inlen;
  41         u32                             out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
  42 };
  43
  44 static struct mlx5_ib_ucontext *
  45 devx_ufile2uctx(const struct uverbs_attr_bundle *attrs)
  46 {
  47         return to_mucontext(ib_uverbs_get_ucontext(attrs));
  48 }
  49
  50 int mlx5_ib_devx_create(struct mlx5_ib_dev *dev, bool is_user)
  51 {
  52         u32 in[MLX5_ST_SZ_DW(create_uctx_in)] = {0};
  53         u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {0};
  54         void *uctx;
  55         int err;
  56         u16 uid;
  57         u32 cap = 0;
  58
  59         /* 0 means not supported */
  60         if (!MLX5_CAP_GEN(dev->mdev, log_max_uctx))
  61                 return -EINVAL;
  62
  63         uctx = MLX5_ADDR_OF(create_uctx_in, in, uctx);
  64         if (is_user && capable(CAP_NET_RAW) &&
  65             (MLX5_CAP_GEN(dev->mdev, uctx_cap) & MLX5_UCTX_CAP_RAW_TX))
  66                 cap |= MLX5_UCTX_CAP_RAW_TX;
  67
  68         MLX5_SET(create_uctx_in, in, opcode, MLX5_CMD_OP_CREATE_UCTX);
  69         MLX5_SET(uctx, uctx, cap, cap);
  70
  71         err = mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out));
  72         if (err)
  73                 return err;
  74
  75         uid = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id);
  76         return uid;
  77 }
  78
  79 void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev, u16 uid)
  80 {
  81         u32 in[MLX5_ST_SZ_DW(destroy_uctx_in)] = {0};
  82         u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {0};
  83
  84         MLX5_SET(destroy_uctx_in, in, opcode, MLX5_CMD_OP_DESTROY_UCTX);
  85         MLX5_SET(destroy_uctx_in, in, uid, uid);
  86
  87         mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out));
  88 }
  89
  90 bool mlx5_ib_devx_is_flow_dest(void *obj, int *dest_id, int *dest_type)
  91 {
  92         struct devx_obj *devx_obj = obj;
  93         u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox, opcode);
  94
  95         switch (opcode) {
  96         case MLX5_CMD_OP_DESTROY_TIR:
  97                 *dest_type = MLX5_FLOW_DESTINATION_TYPE_TIR;
  98                 *dest_id = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox,
  99                                     obj_id);
 100                 return true;
 101
 102         case MLX5_CMD_OP_DESTROY_FLOW_TABLE:
 103                 *dest_type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
 104                 *dest_id = MLX5_GET(destroy_flow_table_in, devx_obj->dinbox,
 105                                     table_id);
 106                 return true;
 107         default:
 108                 return false;
 109         }
 110 }
 111
 112 bool mlx5_ib_devx_is_flow_counter(void *obj, u32 *counter_id)
 113 {
 114         struct devx_obj *devx_obj = obj;
 115         u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox, opcode);
 116
 117         if (opcode == MLX5_CMD_OP_DEALLOC_FLOW_COUNTER) {
 118                 *counter_id = MLX5_GET(dealloc_flow_counter_in,
 119                                        devx_obj->dinbox,
 120                                        flow_counter_id);
 121                 return true;
 122         }
 123
 124         return false;
 125 }
 126
 127 /*
 128  * As the obj_id in the firmware is not globally unique the object type
 129  * must be considered upon checking for a valid object id.
 130  * For that the opcode of the creator command is encoded as part of the obj_id.
 131  */
 132 static u64 get_enc_obj_id(u16 opcode, u32 obj_id)
 133 {
 134         return ((u64)opcode << 32) | obj_id;
 135 }
 136
 137 static u64 devx_get_obj_id(const void *in)
 138 {
 139         u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
 140         u64 obj_id;
 141
 142         switch (opcode) {
 143         case MLX5_CMD_OP_MODIFY_GENERAL_OBJECT:
 144         case MLX5_CMD_OP_QUERY_GENERAL_OBJECT:
 145                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_GENERAL_OBJECT,
 146                                         MLX5_GET(general_obj_in_cmd_hdr, in,
 147                                                  obj_id));
 148                 break;
 149         case MLX5_CMD_OP_QUERY_MKEY:
 150                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_MKEY,
 151                                         MLX5_GET(query_mkey_in, in,
 152                                                  mkey_index));
 153                 break;
 154         case MLX5_CMD_OP_QUERY_CQ:
 155                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_CQ,
 156                                         MLX5_GET(query_cq_in, in, cqn));
 157                 break;
 158         case MLX5_CMD_OP_MODIFY_CQ:
 159                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_CQ,
 160                                         MLX5_GET(modify_cq_in, in, cqn));
 161                 break;
 162         case MLX5_CMD_OP_QUERY_SQ:
 163                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SQ,
 164                                         MLX5_GET(query_sq_in, in, sqn));
 165                 break;
 166         case MLX5_CMD_OP_MODIFY_SQ:
 167                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SQ,
 168                                         MLX5_GET(modify_sq_in, in, sqn));
 169                 break;
 170         case MLX5_CMD_OP_QUERY_RQ:
 171                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ,
 172                                         MLX5_GET(query_rq_in, in, rqn));
 173                 break;
 174         case MLX5_CMD_OP_MODIFY_RQ:
 175                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ,
 176                                         MLX5_GET(modify_rq_in, in, rqn));
 177                 break;
 178         case MLX5_CMD_OP_QUERY_RMP:
 179                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RMP,
 180                                         MLX5_GET(query_rmp_in, in, rmpn));
 181                 break;
 182         case MLX5_CMD_OP_MODIFY_RMP:
 183                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RMP,
 184                                         MLX5_GET(modify_rmp_in, in, rmpn));
 185                 break;
 186         case MLX5_CMD_OP_QUERY_RQT:
 187                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQT,
 188                                         MLX5_GET(query_rqt_in, in, rqtn));
 189                 break;
 190         case MLX5_CMD_OP_MODIFY_RQT:
 191                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQT,
 192                                         MLX5_GET(modify_rqt_in, in, rqtn));
 193                 break;
 194         case MLX5_CMD_OP_QUERY_TIR:
 195                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIR,
 196                                         MLX5_GET(query_tir_in, in, tirn));
 197                 break;
 198         case MLX5_CMD_OP_MODIFY_TIR:
 199                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIR,
 200                                         MLX5_GET(modify_tir_in, in, tirn));
 201                 break;
 202         case MLX5_CMD_OP_QUERY_TIS:
 203                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIS,
 204                                         MLX5_GET(query_tis_in, in, tisn));
 205                 break;
 206         case MLX5_CMD_OP_MODIFY_TIS:
 207                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIS,
 208                                         MLX5_GET(modify_tis_in, in, tisn));
 209                 break;
 210         case MLX5_CMD_OP_QUERY_FLOW_TABLE:
 211                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_FLOW_TABLE,
 212                                         MLX5_GET(query_flow_table_in, in,
 213                                                  table_id));
 214                 break;
 215         case MLX5_CMD_OP_MODIFY_FLOW_TABLE:
 216                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_FLOW_TABLE,
 217                                         MLX5_GET(modify_flow_table_in, in,
 218                                                  table_id));
 219                 break;
 220         case MLX5_CMD_OP_QUERY_FLOW_GROUP:
 221                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_FLOW_GROUP,
 222                                         MLX5_GET(query_flow_group_in, in,
 223                                                  group_id));
 224                 break;
 225         case MLX5_CMD_OP_QUERY_FLOW_TABLE_ENTRY:
 226                 obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY,
 227                                         MLX5_GET(query_fte_in, in,
 228                                                  flow_index));
 229                 break;
 230         case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY:
 231                 obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY,
 232                                         MLX5_GET(set_fte_in, in, flow_index));
 233                 break;
 234         case MLX5_CMD_OP_QUERY_Q_COUNTER:
 235                 obj_id = get_enc_obj_id(MLX5_CMD_OP_ALLOC_Q_COUNTER,
 236                                         MLX5_GET(query_q_counter_in, in,
 237                                                  counter_set_id));
 238                 break;
 239         case MLX5_CMD_OP_QUERY_FLOW_COUNTER:
 240                 obj_id = get_enc_obj_id(MLX5_CMD_OP_ALLOC_FLOW_COUNTER,
 241                                         MLX5_GET(query_flow_counter_in, in,
 242                                                  flow_counter_id));
 243                 break;
 244         case MLX5_CMD_OP_QUERY_MODIFY_HEADER_CONTEXT:
 245                 obj_id = get_enc_obj_id(MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT,
 246                                         MLX5_GET(general_obj_in_cmd_hdr, in,
 247                                                  obj_id));
 248                 break;
 249         case MLX5_CMD_OP_QUERY_SCHEDULING_ELEMENT:
 250                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT,
 251                                         MLX5_GET(query_scheduling_element_in,
 252                                                  in, scheduling_element_id));
 253                 break;
 254         case MLX5_CMD_OP_MODIFY_SCHEDULING_ELEMENT:
 255                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT,
 256                                         MLX5_GET(modify_scheduling_element_in,
 257                                                  in, scheduling_element_id));
 258                 break;
 259         case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT:
 260                 obj_id = get_enc_obj_id(MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT,
 261                                         MLX5_GET(add_vxlan_udp_dport_in, in,
 262                                                  vxlan_udp_port));
 263                 break;
 264         case MLX5_CMD_OP_QUERY_L2_TABLE_ENTRY:
 265                 obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_L2_TABLE_ENTRY,
 266                                         MLX5_GET(query_l2_table_entry_in, in,
 267                                                  table_index));
 268                 break;
 269         case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
 270                 obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_L2_TABLE_ENTRY,
 271                                         MLX5_GET(set_l2_table_entry_in, in,
 272                                                  table_index));
 273                 break;
 274         case MLX5_CMD_OP_QUERY_QP:
 275                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
 276                                         MLX5_GET(query_qp_in, in, qpn));
 277                 break;
 278         case MLX5_CMD_OP_RST2INIT_QP:
 279                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
 280                                         MLX5_GET(rst2init_qp_in, in, qpn));
 281                 break;
 282         case MLX5_CMD_OP_INIT2RTR_QP:
 283                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
 284                                         MLX5_GET(init2rtr_qp_in, in, qpn));
 285                 break;
 286         case MLX5_CMD_OP_RTR2RTS_QP:
 287                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
 288                                         MLX5_GET(rtr2rts_qp_in, in, qpn));
 289                 break;
 290         case MLX5_CMD_OP_RTS2RTS_QP:
 291                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
 292                                         MLX5_GET(rts2rts_qp_in, in, qpn));
 293                 break;
 294         case MLX5_CMD_OP_SQERR2RTS_QP:
 295                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
 296                                         MLX5_GET(sqerr2rts_qp_in, in, qpn));
 297                 break;
 298         case MLX5_CMD_OP_2ERR_QP:
 299                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
 300                                         MLX5_GET(qp_2err_in, in, qpn));
 301                 break;
 302         case MLX5_CMD_OP_2RST_QP:
 303                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
 304                                         MLX5_GET(qp_2rst_in, in, qpn));
 305                 break;
 306         case MLX5_CMD_OP_QUERY_DCT:
 307                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_DCT,
 308                                         MLX5_GET(query_dct_in, in, dctn));
 309                 break;
 310         case MLX5_CMD_OP_QUERY_XRQ:
 311         case MLX5_CMD_OP_QUERY_XRQ_DC_PARAMS_ENTRY:
 312         case MLX5_CMD_OP_QUERY_XRQ_ERROR_PARAMS:
 313                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRQ,
 314                                         MLX5_GET(query_xrq_in, in, xrqn));
 315                 break;
 316         case MLX5_CMD_OP_QUERY_XRC_SRQ:
 317                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRC_SRQ,
 318                                         MLX5_GET(query_xrc_srq_in, in,
 319                                                  xrc_srqn));
 320                 break;
 321         case MLX5_CMD_OP_ARM_XRC_SRQ:
 322                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRC_SRQ,
 323                                         MLX5_GET(arm_xrc_srq_in, in, xrc_srqn));
 324                 break;
 325         case MLX5_CMD_OP_QUERY_SRQ:
 326                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SRQ,
 327                                         MLX5_GET(query_srq_in, in, srqn));
 328                 break;
 329         case MLX5_CMD_OP_ARM_RQ:
 330                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ,
 331                                         MLX5_GET(arm_rq_in, in, srq_number));
 332                 break;
 333         case MLX5_CMD_OP_DRAIN_DCT:
 334         case MLX5_CMD_OP_ARM_DCT_FOR_KEY_VIOLATION:
 335                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_DCT,
 336                                         MLX5_GET(drain_dct_in, in, dctn));
 337                 break;
 338         case MLX5_CMD_OP_ARM_XRQ:
 339         case MLX5_CMD_OP_SET_XRQ_DC_PARAMS_ENTRY:
 340                 obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRQ,
 341                                         MLX5_GET(arm_xrq_in, in, xrqn));
 342                 break;
 343         case MLX5_CMD_OP_QUERY_PACKET_REFORMAT_CONTEXT:
 344                 obj_id = get_enc_obj_id
 345                                 (MLX5_CMD_OP_ALLOC_PACKET_REFORMAT_CONTEXT,
 346                                  MLX5_GET(query_packet_reformat_context_in,
 347                                           in, packet_reformat_id));
 348                 break;
 349         default:
 350                 obj_id = 0;
 351         }
 352
 353         return obj_id;
 354 }
 355
 356 static bool devx_is_valid_obj_id(struct ib_uobject *uobj, const void *in)
 357 {
 358         u64 obj_id = devx_get_obj_id(in);
 359
 360         if (!obj_id)
 361                 return false;
 362
 363         switch (uobj_get_object_id(uobj)) {
 364         case UVERBS_OBJECT_CQ:
 365                 return get_enc_obj_id(MLX5_CMD_OP_CREATE_CQ,
 366                                       to_mcq(uobj->object)->mcq.cqn) ==
 367                                       obj_id;
 368
 369         case UVERBS_OBJECT_SRQ:
 370         {
 371                 struct mlx5_core_srq *srq = &(to_msrq(uobj->object)->msrq);
 372                 struct mlx5_ib_dev *dev = to_mdev(uobj->context->device);
 373                 u16 opcode;
 374
 375                 switch (srq->common.res) {
 376                 case MLX5_RES_XSRQ:
 377                         opcode = MLX5_CMD_OP_CREATE_XRC_SRQ;
 378                         break;
 379                 case MLX5_RES_XRQ:
 380                         opcode = MLX5_CMD_OP_CREATE_XRQ;
 381                         break;
 382                 default:
 383                         if (!dev->mdev->issi)
 384                                 opcode = MLX5_CMD_OP_CREATE_SRQ;
 385                         else
 386                                 opcode = MLX5_CMD_OP_CREATE_RMP;
 387                 }
 388
 389                 return get_enc_obj_id(opcode,
 390                                       to_msrq(uobj->object)->msrq.srqn) ==
 391                                       obj_id;
 392         }
 393
 394         case UVERBS_OBJECT_QP:
 395         {
 396                 struct mlx5_ib_qp *qp = to_mqp(uobj->object);
 397                 enum ib_qp_type qp_type = qp->ibqp.qp_type;
 398
 399                 if (qp_type == IB_QPT_RAW_PACKET ||
 400                     (qp->flags & MLX5_IB_QP_UNDERLAY)) {
 401                         struct mlx5_ib_raw_packet_qp *raw_packet_qp =
 402                                                          &qp->raw_packet_qp;
 403                         struct mlx5_ib_rq *rq = &raw_packet_qp->rq;
 404                         struct mlx5_ib_sq *sq = &raw_packet_qp->sq;
 405
 406                         return (get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ,
 407                                                rq->base.mqp.qpn) == obj_id ||
 408                                 get_enc_obj_id(MLX5_CMD_OP_CREATE_SQ,
 409                                                sq->base.mqp.qpn) == obj_id ||
 410                                 get_enc_obj_id(MLX5_CMD_OP_CREATE_TIR,
 411                                                rq->tirn) == obj_id ||
 412                                 get_enc_obj_id(MLX5_CMD_OP_CREATE_TIS,
 413                                                sq->tisn) == obj_id);
 414                 }
 415
 416                 if (qp_type == MLX5_IB_QPT_DCT)
 417                         return get_enc_obj_id(MLX5_CMD_OP_CREATE_DCT,
 418                                               qp->dct.mdct.mqp.qpn) == obj_id;
 419
 420                 return get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
 421                                       qp->ibqp.qp_num) == obj_id;
 422         }
 423
 424         case UVERBS_OBJECT_WQ:
 425                 return get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ,
 426                                       to_mrwq(uobj->object)->core_qp.qpn) ==
 427                                       obj_id;
 428
 429         case UVERBS_OBJECT_RWQ_IND_TBL:
 430                 return get_enc_obj_id(MLX5_CMD_OP_CREATE_RQT,
 431                                       to_mrwq_ind_table(uobj->object)->rqtn) ==
 432                                       obj_id;
 433
 434         case MLX5_IB_OBJECT_DEVX_OBJ:
 435                 return ((struct devx_obj *)uobj->object)->obj_id == obj_id;
 436
 437         default:
 438                 return false;
 439         }
 440 }
 441
 442 static void devx_set_umem_valid(const void *in)
 443 {
 444         u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
 445
 446         switch (opcode) {
 447         case MLX5_CMD_OP_CREATE_MKEY:
 448                 MLX5_SET(create_mkey_in, in, mkey_umem_valid, 1);
 449                 break;
 450         case MLX5_CMD_OP_CREATE_CQ:
 451         {
 452                 void *cqc;
 453
 454                 MLX5_SET(create_cq_in, in, cq_umem_valid, 1);
 455                 cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context);
 456                 MLX5_SET(cqc, cqc, dbr_umem_valid, 1);
 457                 break;
 458         }
 459         case MLX5_CMD_OP_CREATE_QP:
 460         {
 461                 void *qpc;
 462
 463                 qpc = MLX5_ADDR_OF(create_qp_in, in, qpc);
 464                 MLX5_SET(qpc, qpc, dbr_umem_valid, 1);
 465                 MLX5_SET(create_qp_in, in, wq_umem_valid, 1);
 466                 break;
 467         }
 468
 469         case MLX5_CMD_OP_CREATE_RQ:
 470         {
 471                 void *rqc, *wq;
 472
 473                 rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
 474                 wq  = MLX5_ADDR_OF(rqc, rqc, wq);
 475                 MLX5_SET(wq, wq, dbr_umem_valid, 1);
 476                 MLX5_SET(wq, wq, wq_umem_valid, 1);
 477                 break;
 478         }
 479
 480         case MLX5_CMD_OP_CREATE_SQ:
 481         {
 482                 void *sqc, *wq;
 483
 484                 sqc = MLX5_ADDR_OF(create_sq_in, in, ctx);
 485                 wq = MLX5_ADDR_OF(sqc, sqc, wq);
 486                 MLX5_SET(wq, wq, dbr_umem_valid, 1);
 487                 MLX5_SET(wq, wq, wq_umem_valid, 1);
 488                 break;
 489         }
 490
 491         case MLX5_CMD_OP_MODIFY_CQ:
 492                 MLX5_SET(modify_cq_in, in, cq_umem_valid, 1);
 493                 break;
 494
 495         case MLX5_CMD_OP_CREATE_RMP:
 496         {
 497                 void *rmpc, *wq;
 498
 499                 rmpc = MLX5_ADDR_OF(create_rmp_in, in, ctx);
 500                 wq = MLX5_ADDR_OF(rmpc, rmpc, wq);
 501                 MLX5_SET(wq, wq, dbr_umem_valid, 1);
 502                 MLX5_SET(wq, wq, wq_umem_valid, 1);
 503                 break;
 504         }
 505
 506         case MLX5_CMD_OP_CREATE_XRQ:
 507         {
 508                 void *xrqc, *wq;
 509
 510                 xrqc = MLX5_ADDR_OF(create_xrq_in, in, xrq_context);
 511                 wq = MLX5_ADDR_OF(xrqc, xrqc, wq);
 512                 MLX5_SET(wq, wq, dbr_umem_valid, 1);
 513                 MLX5_SET(wq, wq, wq_umem_valid, 1);
 514                 break;
 515         }
 516
 517         case MLX5_CMD_OP_CREATE_XRC_SRQ:
 518         {
 519                 void *xrc_srqc;
 520
 521                 MLX5_SET(create_xrc_srq_in, in, xrc_srq_umem_valid, 1);
 522                 xrc_srqc = MLX5_ADDR_OF(create_xrc_srq_in, in,
 523                                         xrc_srq_context_entry);
 524                 MLX5_SET(xrc_srqc, xrc_srqc, dbr_umem_valid, 1);
 525                 break;
 526         }
 527
 528         default:
 529                 return;
 530         }
 531 }
 532
 533 static bool devx_is_obj_create_cmd(const void *in, u16 *opcode)
 534 {
 535         *opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
 536
 537         switch (*opcode) {
 538         case MLX5_CMD_OP_CREATE_GENERAL_OBJECT:
 539         case MLX5_CMD_OP_CREATE_MKEY:
 540         case MLX5_CMD_OP_CREATE_CQ:
 541         case MLX5_CMD_OP_ALLOC_PD:
 542         case MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN:
 543         case MLX5_CMD_OP_CREATE_RMP:
 544         case MLX5_CMD_OP_CREATE_SQ:
 545         case MLX5_CMD_OP_CREATE_RQ:
 546         case MLX5_CMD_OP_CREATE_RQT:
 547         case MLX5_CMD_OP_CREATE_TIR:
 548         case MLX5_CMD_OP_CREATE_TIS:
 549         case MLX5_CMD_OP_ALLOC_Q_COUNTER:
 550         case MLX5_CMD_OP_CREATE_FLOW_TABLE:
 551         case MLX5_CMD_OP_CREATE_FLOW_GROUP:
 552         case MLX5_CMD_OP_ALLOC_FLOW_COUNTER:
 553         case MLX5_CMD_OP_ALLOC_PACKET_REFORMAT_CONTEXT:
 554         case MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT:
 555         case MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT:
 556         case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT:
 557         case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
 558         case MLX5_CMD_OP_CREATE_QP:
 559         case MLX5_CMD_OP_CREATE_SRQ:
 560         case MLX5_CMD_OP_CREATE_XRC_SRQ:
 561         case MLX5_CMD_OP_CREATE_DCT:
 562         case MLX5_CMD_OP_CREATE_XRQ:
 563         case MLX5_CMD_OP_ATTACH_TO_MCG:
 564         case MLX5_CMD_OP_ALLOC_XRCD:
 565                 return true;
 566         case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY:
 567         {
 568                 u16 op_mod = MLX5_GET(set_fte_in, in, op_mod);
 569                 if (op_mod == 0)
 570                         return true;
 571                 return false;
 572         }
 573         default:
 574                 return false;
 575         }
 576 }
 577
 578 static bool devx_is_obj_modify_cmd(const void *in)
 579 {
 580         u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
 581
 582         switch (opcode) {
 583         case MLX5_CMD_OP_MODIFY_GENERAL_OBJECT:
 584         case MLX5_CMD_OP_MODIFY_CQ:
 585         case MLX5_CMD_OP_MODIFY_RMP:
 586         case MLX5_CMD_OP_MODIFY_SQ:
 587         case MLX5_CMD_OP_MODIFY_RQ:
 588         case MLX5_CMD_OP_MODIFY_RQT:
 589         case MLX5_CMD_OP_MODIFY_TIR:
 590         case MLX5_CMD_OP_MODIFY_TIS:
 591         case MLX5_CMD_OP_MODIFY_FLOW_TABLE:
 592         case MLX5_CMD_OP_MODIFY_SCHEDULING_ELEMENT:
 593         case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT:
 594         case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
 595         case MLX5_CMD_OP_RST2INIT_QP:
 596         case MLX5_CMD_OP_INIT2RTR_QP:
 597         case MLX5_CMD_OP_RTR2RTS_QP:
 598         case MLX5_CMD_OP_RTS2RTS_QP:
 599         case MLX5_CMD_OP_SQERR2RTS_QP:
 600         case MLX5_CMD_OP_2ERR_QP:
 601         case MLX5_CMD_OP_2RST_QP:
 602         case MLX5_CMD_OP_ARM_XRC_SRQ:
 603         case MLX5_CMD_OP_ARM_RQ:
 604         case MLX5_CMD_OP_DRAIN_DCT:
 605         case MLX5_CMD_OP_ARM_DCT_FOR_KEY_VIOLATION:
 606         case MLX5_CMD_OP_ARM_XRQ:
 607         case MLX5_CMD_OP_SET_XRQ_DC_PARAMS_ENTRY:
 608                 return true;
 609         case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY:
 610         {
 611                 u16 op_mod = MLX5_GET(set_fte_in, in, op_mod);
 612
 613                 if (op_mod == 1)
 614                         return true;
 615                 return false;
 616         }
 617         default:
 618                 return false;
 619         }
 620 }
 621
 622 static bool devx_is_obj_query_cmd(const void *in)
 623 {
 624         u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
 625
 626         switch (opcode) {
 627         case MLX5_CMD_OP_QUERY_GENERAL_OBJECT:
 628         case MLX5_CMD_OP_QUERY_MKEY:
 629         case MLX5_CMD_OP_QUERY_CQ:
 630         case MLX5_CMD_OP_QUERY_RMP:
 631         case MLX5_CMD_OP_QUERY_SQ:
 632         case MLX5_CMD_OP_QUERY_RQ:
 633         case MLX5_CMD_OP_QUERY_RQT:
 634         case MLX5_CMD_OP_QUERY_TIR:
 635         case MLX5_CMD_OP_QUERY_TIS:
 636         case MLX5_CMD_OP_QUERY_Q_COUNTER:
 637         case MLX5_CMD_OP_QUERY_FLOW_TABLE:
 638         case MLX5_CMD_OP_QUERY_FLOW_GROUP:
 639         case MLX5_CMD_OP_QUERY_FLOW_TABLE_ENTRY:
 640         case MLX5_CMD_OP_QUERY_FLOW_COUNTER:
 641         case MLX5_CMD_OP_QUERY_MODIFY_HEADER_CONTEXT:
 642         case MLX5_CMD_OP_QUERY_SCHEDULING_ELEMENT:
 643         case MLX5_CMD_OP_QUERY_L2_TABLE_ENTRY:
 644         case MLX5_CMD_OP_QUERY_QP:
 645         case MLX5_CMD_OP_QUERY_SRQ:
 646         case MLX5_CMD_OP_QUERY_XRC_SRQ:
 647         case MLX5_CMD_OP_QUERY_DCT:
 648         case MLX5_CMD_OP_QUERY_XRQ:
 649         case MLX5_CMD_OP_QUERY_XRQ_DC_PARAMS_ENTRY:
 650         case MLX5_CMD_OP_QUERY_XRQ_ERROR_PARAMS:
 651         case MLX5_CMD_OP_QUERY_PACKET_REFORMAT_CONTEXT:
 652                 return true;
 653         default:
 654                 return false;
 655         }
 656 }
 657
 658 static bool devx_is_whitelist_cmd(void *in)
 659 {
 660         u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
 661
 662         switch (opcode) {
 663         case MLX5_CMD_OP_QUERY_HCA_CAP:
 664         case MLX5_CMD_OP_QUERY_HCA_VPORT_CONTEXT:
 665                 return true;
 666         default:
 667                 return false;
 668         }
 669 }
 670
 671 static int devx_get_uid(struct mlx5_ib_ucontext *c, void *cmd_in)
 672 {
 673         if (devx_is_whitelist_cmd(cmd_in)) {
 674                 struct mlx5_ib_dev *dev;
 675
 676                 if (c->devx_uid)
 677                         return c->devx_uid;
 678
 679                 dev = to_mdev(c->ibucontext.device);
 680                 if (dev->devx_whitelist_uid)
 681                         return dev->devx_whitelist_uid;
 682
 683                 return -EOPNOTSUPP;
 684         }
 685
 686         if (!c->devx_uid)
 687                 return -EINVAL;
 688
 689         return c->devx_uid;
 690 }
 691 static bool devx_is_general_cmd(void *in)
 692 {
 693         u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
 694
 695         if (opcode >= MLX5_CMD_OP_GENERAL_START &&
 696             opcode < MLX5_CMD_OP_GENERAL_END)
 697                 return true;
 698
 699         switch (opcode) {
 700         case MLX5_CMD_OP_QUERY_HCA_CAP:
 701         case MLX5_CMD_OP_QUERY_HCA_VPORT_CONTEXT:
 702         case MLX5_CMD_OP_QUERY_VPORT_STATE:
 703         case MLX5_CMD_OP_QUERY_ADAPTER:
 704         case MLX5_CMD_OP_QUERY_ISSI:
 705         case MLX5_CMD_OP_QUERY_NIC_VPORT_CONTEXT:
 706         case MLX5_CMD_OP_QUERY_ROCE_ADDRESS:
 707         case MLX5_CMD_OP_QUERY_VNIC_ENV:
 708         case MLX5_CMD_OP_QUERY_VPORT_COUNTER:
 709         case MLX5_CMD_OP_GET_DROPPED_PACKET_LOG:
 710         case MLX5_CMD_OP_NOP:
 711         case MLX5_CMD_OP_QUERY_CONG_STATUS:
 712         case MLX5_CMD_OP_QUERY_CONG_PARAMS:
 713         case MLX5_CMD_OP_QUERY_CONG_STATISTICS:
 714                 return true;
 715         default:
 716                 return false;
 717         }
 718 }
 719
 720 static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_QUERY_EQN)(
 721         struct uverbs_attr_bundle *attrs)
 722 {
 723         struct mlx5_ib_ucontext *c;
 724         struct mlx5_ib_dev *dev;
 725         int user_vector;
 726         int dev_eqn;
 727         unsigned int irqn;
 728         int err;
 729
 730         if (uverbs_copy_from(&user_vector, attrs,
 731                              MLX5_IB_ATTR_DEVX_QUERY_EQN_USER_VEC))
 732                 return -EFAULT;
 733
 734         c = devx_ufile2uctx(attrs);
 735         if (IS_ERR(c))
 736                 return PTR_ERR(c);
 737         dev = to_mdev(c->ibucontext.device);
 738
 739         err = mlx5_vector2eqn(dev->mdev, user_vector, &dev_eqn, &irqn);
 740         if (err < 0)
 741                 return err;
 742
 743         if (uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_QUERY_EQN_DEV_EQN,
 744                            &dev_eqn, sizeof(dev_eqn)))
 745                 return -EFAULT;
 746
 747         return 0;
 748 }
 749
 750 /*
 751  *Security note:
 752  * The hardware protection mechanism works like this: Each device object that
 753  * is subject to UAR doorbells (QP/SQ/CQ) gets a UAR ID (called uar_page in
 754  * the device specification manual) upon its creation. Then upon doorbell,
 755  * hardware fetches the object context for which the doorbell was rang, and
 756  * validates that the UAR through which the DB was rang matches the UAR ID
 757  * of the object.
 758  * If no match the doorbell is silently ignored by the hardware. Of course,
 759  * the user cannot ring a doorbell on a UAR that was not mapped to it.
 760  * Now in devx, as the devx kernel does not manipulate the QP/SQ/CQ command
 761  * mailboxes (except tagging them with UID), we expose to the user its UAR
 762  * ID, so it can embed it in these objects in the expected specification
 763  * format. So the only thing the user can do is hurt itself by creating a
 764  * QP/SQ/CQ with a UAR ID other than his, and then in this case other users
 765  * may ring a doorbell on its objects.
 766  * The consequence of that will be that another user can schedule a QP/SQ
 767  * of the buggy user for execution (just insert it to the hardware schedule
 768  * queue or arm its CQ for event generation), no further harm is expected.
 769  */
 770 static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_QUERY_UAR)(
 771         struct uverbs_attr_bundle *attrs)
 772 {
 773         struct mlx5_ib_ucontext *c;
 774         struct mlx5_ib_dev *dev;
 775         u32 user_idx;
 776         s32 dev_idx;
 777
 778         c = devx_ufile2uctx(attrs);
 779         if (IS_ERR(c))
 780                 return PTR_ERR(c);
 781         dev = to_mdev(c->ibucontext.device);
 782
 783         if (uverbs_copy_from(&user_idx, attrs,
 784                              MLX5_IB_ATTR_DEVX_QUERY_UAR_USER_IDX))
 785                 return -EFAULT;
 786
 787         dev_idx = bfregn_to_uar_index(dev, &c->bfregi, user_idx, true);
 788         if (dev_idx < 0)
 789                 return dev_idx;
 790
 791         if (uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_QUERY_UAR_DEV_IDX,
 792                            &dev_idx, sizeof(dev_idx)))
 793                 return -EFAULT;
 794
 795         return 0;
 796 }
 797
 798 static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OTHER)(
 799         struct uverbs_attr_bundle *attrs)
 800 {
 801         struct mlx5_ib_ucontext *c;
 802         struct mlx5_ib_dev *dev;
 803         void *cmd_in = uverbs_attr_get_alloced_ptr(
 804                 attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_IN);
 805         int cmd_out_len = uverbs_attr_get_len(attrs,
 806                                         MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT);
 807         void *cmd_out;
 808         int err;
 809         int uid;
 810
 811         c = devx_ufile2uctx(attrs);
 812         if (IS_ERR(c))
 813                 return PTR_ERR(c);
 814         dev = to_mdev(c->ibucontext.device);
 815
 816         uid = devx_get_uid(c, cmd_in);
 817         if (uid < 0)
 818                 return uid;
 819
 820         /* Only white list of some general HCA commands are allowed for this method. */
 821         if (!devx_is_general_cmd(cmd_in))
 822                 return -EINVAL;
 823
 824         cmd_out = uverbs_zalloc(attrs, cmd_out_len);
 825         if (IS_ERR(cmd_out))
 826                 return PTR_ERR(cmd_out);
 827
 828         MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid);
 829         err = mlx5_cmd_exec(dev->mdev, cmd_in,
 830                             uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_IN),
 831                             cmd_out, cmd_out_len);
 832         if (err)
 833                 return err;
 834
 835         return uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT, cmd_out,
 836                               cmd_out_len);
 837 }
 838
 839 static void devx_obj_build_destroy_cmd(void *in, void *out, void *din,
 840                                        u32 *dinlen,
 841                                        u32 *obj_id)
 842 {
 843         u16 obj_type = MLX5_GET(general_obj_in_cmd_hdr, in, obj_type);
 844         u16 uid = MLX5_GET(general_obj_in_cmd_hdr, in, uid);
 845
 846         *obj_id = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id);
 847         *dinlen = MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr);
 848
 849         MLX5_SET(general_obj_in_cmd_hdr, din, obj_id, *obj_id);
 850         MLX5_SET(general_obj_in_cmd_hdr, din, uid, uid);
 851
 852         switch (MLX5_GET(general_obj_in_cmd_hdr, in, opcode)) {
 853         case MLX5_CMD_OP_CREATE_GENERAL_OBJECT:
 854                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_GENERAL_OBJECT);
 855                 MLX5_SET(general_obj_in_cmd_hdr, din, obj_type, obj_type);
 856                 break;
 857
 858         case MLX5_CMD_OP_CREATE_UMEM:
 859                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
 860                          MLX5_CMD_OP_DESTROY_UMEM);
 861                 break;
 862         case MLX5_CMD_OP_CREATE_MKEY:
 863                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_MKEY);
 864                 break;
 865         case MLX5_CMD_OP_CREATE_CQ:
 866                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_CQ);
 867                 break;
 868         case MLX5_CMD_OP_ALLOC_PD:
 869                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DEALLOC_PD);
 870                 break;
 871         case MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN:
 872                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
 873                          MLX5_CMD_OP_DEALLOC_TRANSPORT_DOMAIN);
 874                 break;
 875         case MLX5_CMD_OP_CREATE_RMP:
 876                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RMP);
 877                 break;
 878         case MLX5_CMD_OP_CREATE_SQ:
 879                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_SQ);
 880                 break;
 881         case MLX5_CMD_OP_CREATE_RQ:
 882                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RQ);
 883                 break;
 884         case MLX5_CMD_OP_CREATE_RQT:
 885                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RQT);
 886                 break;
 887         case MLX5_CMD_OP_CREATE_TIR:
 888                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_TIR);
 889                 break;
 890         case MLX5_CMD_OP_CREATE_TIS:
 891                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_TIS);
 892                 break;
 893         case MLX5_CMD_OP_ALLOC_Q_COUNTER:
 894                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
 895                          MLX5_CMD_OP_DEALLOC_Q_COUNTER);
 896                 break;
 897         case MLX5_CMD_OP_CREATE_FLOW_TABLE:
 898                 *dinlen = MLX5_ST_SZ_BYTES(destroy_flow_table_in);
 899                 *obj_id = MLX5_GET(create_flow_table_out, out, table_id);
 900                 MLX5_SET(destroy_flow_table_in, din, other_vport,
 901                          MLX5_GET(create_flow_table_in,  in, other_vport));
 902                 MLX5_SET(destroy_flow_table_in, din, vport_number,
 903                          MLX5_GET(create_flow_table_in,  in, vport_number));
 904                 MLX5_SET(destroy_flow_table_in, din, table_type,
 905                          MLX5_GET(create_flow_table_in,  in, table_type));
 906                 MLX5_SET(destroy_flow_table_in, din, table_id, *obj_id);
 907                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
 908                          MLX5_CMD_OP_DESTROY_FLOW_TABLE);
 909                 break;
 910         case MLX5_CMD_OP_CREATE_FLOW_GROUP:
 911                 *dinlen = MLX5_ST_SZ_BYTES(destroy_flow_group_in);
 912                 *obj_id = MLX5_GET(create_flow_group_out, out, group_id);
 913                 MLX5_SET(destroy_flow_group_in, din, other_vport,
 914                          MLX5_GET(create_flow_group_in, in, other_vport));
 915                 MLX5_SET(destroy_flow_group_in, din, vport_number,
 916                          MLX5_GET(create_flow_group_in, in, vport_number));
 917                 MLX5_SET(destroy_flow_group_in, din, table_type,
 918                          MLX5_GET(create_flow_group_in, in, table_type));
 919                 MLX5_SET(destroy_flow_group_in, din, table_id,
 920                          MLX5_GET(create_flow_group_in, in, table_id));
 921                 MLX5_SET(destroy_flow_group_in, din, group_id, *obj_id);
 922                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
 923                          MLX5_CMD_OP_DESTROY_FLOW_GROUP);
 924                 break;
 925         case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY:
 926                 *dinlen = MLX5_ST_SZ_BYTES(delete_fte_in);
 927                 *obj_id = MLX5_GET(set_fte_in, in, flow_index);
 928                 MLX5_SET(delete_fte_in, din, other_vport,
 929                          MLX5_GET(set_fte_in,  in, other_vport));
 930                 MLX5_SET(delete_fte_in, din, vport_number,
 931                          MLX5_GET(set_fte_in, in, vport_number));
 932                 MLX5_SET(delete_fte_in, din, table_type,
 933                          MLX5_GET(set_fte_in, in, table_type));
 934                 MLX5_SET(delete_fte_in, din, table_id,
 935                          MLX5_GET(set_fte_in, in, table_id));
 936                 MLX5_SET(delete_fte_in, din, flow_index, *obj_id);
 937                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
 938                          MLX5_CMD_OP_DELETE_FLOW_TABLE_ENTRY);
 939                 break;
 940         case MLX5_CMD_OP_ALLOC_FLOW_COUNTER:
 941                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
 942                          MLX5_CMD_OP_DEALLOC_FLOW_COUNTER);
 943                 break;
 944         case MLX5_CMD_OP_ALLOC_PACKET_REFORMAT_CONTEXT:
 945                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
 946                          MLX5_CMD_OP_DEALLOC_PACKET_REFORMAT_CONTEXT);
 947                 break;
 948         case MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT:
 949                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
 950                          MLX5_CMD_OP_DEALLOC_MODIFY_HEADER_CONTEXT);
 951                 break;
 952         case MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT:
 953                 *dinlen = MLX5_ST_SZ_BYTES(destroy_scheduling_element_in);
 954                 *obj_id = MLX5_GET(create_scheduling_element_out, out,
 955                                    scheduling_element_id);
 956                 MLX5_SET(destroy_scheduling_element_in, din,
 957                          scheduling_hierarchy,
 958                          MLX5_GET(create_scheduling_element_in, in,
 959                                   scheduling_hierarchy));
 960                 MLX5_SET(destroy_scheduling_element_in, din,
 961                          scheduling_element_id, *obj_id);
 962                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
 963                          MLX5_CMD_OP_DESTROY_SCHEDULING_ELEMENT);
 964                 break;
 965         case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT:
 966                 *dinlen = MLX5_ST_SZ_BYTES(delete_vxlan_udp_dport_in);
 967                 *obj_id = MLX5_GET(add_vxlan_udp_dport_in, in, vxlan_udp_port);
 968                 MLX5_SET(delete_vxlan_udp_dport_in, din, vxlan_udp_port, *obj_id);
 969                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
 970                          MLX5_CMD_OP_DELETE_VXLAN_UDP_DPORT);
 971                 break;
 972         case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
 973                 *dinlen = MLX5_ST_SZ_BYTES(delete_l2_table_entry_in);
 974                 *obj_id = MLX5_GET(set_l2_table_entry_in, in, table_index);
 975                 MLX5_SET(delete_l2_table_entry_in, din, table_index, *obj_id);
 976                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
 977                          MLX5_CMD_OP_DELETE_L2_TABLE_ENTRY);
 978                 break;
 979         case MLX5_CMD_OP_CREATE_QP:
 980                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_QP);
 981                 break;
 982         case MLX5_CMD_OP_CREATE_SRQ:
 983                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_SRQ);
 984                 break;
 985         case MLX5_CMD_OP_CREATE_XRC_SRQ:
 986                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
 987                          MLX5_CMD_OP_DESTROY_XRC_SRQ);
 988                 break;
 989         case MLX5_CMD_OP_CREATE_DCT:
 990                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_DCT);
 991                 break;
 992         case MLX5_CMD_OP_CREATE_XRQ:
 993                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_XRQ);
 994                 break;
 995         case MLX5_CMD_OP_ATTACH_TO_MCG:
 996                 *dinlen = MLX5_ST_SZ_BYTES(detach_from_mcg_in);
 997                 MLX5_SET(detach_from_mcg_in, din, qpn,
 998                          MLX5_GET(attach_to_mcg_in, in, qpn));
 999                 memcpy(MLX5_ADDR_OF(detach_from_mcg_in, din, multicast_gid),
1000                        MLX5_ADDR_OF(attach_to_mcg_in, in, multicast_gid),
1001                        MLX5_FLD_SZ_BYTES(attach_to_mcg_in, multicast_gid));
1002                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DETACH_FROM_MCG);
1003                 break;
1004         case MLX5_CMD_OP_ALLOC_XRCD:
1005                 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DEALLOC_XRCD);
1006                 break;
1007         default:
1008                 /* The entry must match to one of the devx_is_obj_create_cmd */
1009                 WARN_ON(true);
1010                 break;
1011         }
1012 }
1013
1014 static int devx_obj_cleanup(struct ib_uobject *uobject,
1015                             enum rdma_remove_reason why)
1016 {
1017         u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
1018         struct devx_obj *obj = uobject->object;
1019         int ret;
1020
1021         ret = mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, out, sizeof(out));
1022         if (ib_is_destroy_retryable(ret, why, uobject))
1023                 return ret;
1024
1025         kfree(obj);
1026         return ret;
1027 }
1028
1029 static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)(
1030         struct uverbs_attr_bundle *attrs)
1031 {
1032         void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN);
1033         int cmd_out_len =  uverbs_attr_get_len(attrs,
1034                                         MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT);
1035         void *cmd_out;
1036         struct ib_uobject *uobj = uverbs_attr_get_uobject(
1037                 attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE);
1038         struct mlx5_ib_ucontext *c = to_mucontext(uobj->context);
1039         struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device);
1040         u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
1041         struct devx_obj *obj;
1042         int err;
1043         int uid;
1044         u32 obj_id;
1045         u16 opcode;
1046
1047         uid = devx_get_uid(c, cmd_in);
1048         if (uid < 0)
1049                 return uid;
1050
1051         if (!devx_is_obj_create_cmd(cmd_in, &opcode))
1052                 return -EINVAL;
1053
1054         cmd_out = uverbs_zalloc(attrs, cmd_out_len);
1055         if (IS_ERR(cmd_out))
1056                 return PTR_ERR(cmd_out);
1057
1058         obj = kzalloc(sizeof(struct devx_obj), GFP_KERNEL);
1059         if (!obj)
1060                 return -ENOMEM;
1061
1062         MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid);
1063         devx_set_umem_valid(cmd_in);
1064
1065         err = mlx5_cmd_exec(dev->mdev, cmd_in,
1066                             uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN),
1067                             cmd_out, cmd_out_len);
1068         if (err)
1069                 goto obj_free;
1070
1071         uobj->object = obj;
1072         obj->mdev = dev->mdev;
1073         devx_obj_build_destroy_cmd(cmd_in, cmd_out, obj->dinbox, &obj->dinlen,
1074                                    &obj_id);
1075         WARN_ON(obj->dinlen > MLX5_MAX_DESTROY_INBOX_SIZE_DW * sizeof(u32));
1076
1077         err = uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT, cmd_out, cmd_out_len);
1078         if (err)
1079                 goto obj_destroy;
1080
1081         obj->obj_id = get_enc_obj_id(opcode, obj_id);
1082         return 0;
1083
1084 obj_destroy:
1085         mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, out, sizeof(out));
1086 obj_free:
1087         kfree(obj);
1088         return err;
1089 }
1090
1091 static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_MODIFY)(
1092         struct uverbs_attr_bundle *attrs)
1093 {
1094         void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN);
1095         int cmd_out_len = uverbs_attr_get_len(attrs,
1096                                         MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_OUT);
1097         struct ib_uobject *uobj = uverbs_attr_get_uobject(attrs,
1098                                                           MLX5_IB_ATTR_DEVX_OBJ_MODIFY_HANDLE);
1099         struct mlx5_ib_ucontext *c = to_mucontext(uobj->context);
1100         struct mlx5_ib_dev *mdev = to_mdev(uobj->context->device);
1101         void *cmd_out;
1102         int err;
1103         int uid;
1104
1105         uid = devx_get_uid(c, cmd_in);
1106         if (uid < 0)
1107                 return uid;
1108
1109         if (!devx_is_obj_modify_cmd(cmd_in))
1110                 return -EINVAL;
1111
1112         if (!devx_is_valid_obj_id(uobj, cmd_in))
1113                 return -EINVAL;
1114
1115         cmd_out = uverbs_zalloc(attrs, cmd_out_len);
1116         if (IS_ERR(cmd_out))
1117                 return PTR_ERR(cmd_out);
1118
1119         MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid);
1120         devx_set_umem_valid(cmd_in);
1121
1122         err = mlx5_cmd_exec(mdev->mdev, cmd_in,
1123                             uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN),
1124                             cmd_out, cmd_out_len);
1125         if (err)
1126                 return err;
1127
1128         return uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_OUT,
1129                               cmd_out, cmd_out_len);
1130 }
1131
1132 static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_QUERY)(
1133         struct uverbs_attr_bundle *attrs)
1134 {
1135         void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN);
1136         int cmd_out_len = uverbs_attr_get_len(attrs,
1137                                               MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_OUT);
1138         struct ib_uobject *uobj = uverbs_attr_get_uobject(attrs,
1139                                                           MLX5_IB_ATTR_DEVX_OBJ_QUERY_HANDLE);
1140         struct mlx5_ib_ucontext *c = to_mucontext(uobj->context);
1141         void *cmd_out;
1142         int err;
1143         int uid;
1144         struct mlx5_ib_dev *mdev = to_mdev(uobj->context->device);
1145
1146         uid = devx_get_uid(c, cmd_in);
1147         if (uid < 0)
1148                 return uid;
1149
1150         if (!devx_is_obj_query_cmd(cmd_in))
1151                 return -EINVAL;
1152
1153         if (!devx_is_valid_obj_id(uobj, cmd_in))
1154                 return -EINVAL;
1155
1156         cmd_out = uverbs_zalloc(attrs, cmd_out_len);
1157         if (IS_ERR(cmd_out))
1158                 return PTR_ERR(cmd_out);
1159
1160         MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid);
1161         err = mlx5_cmd_exec(mdev->mdev, cmd_in,
1162                             uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN),
1163                             cmd_out, cmd_out_len);
1164         if (err)
1165                 return err;
1166
1167         return uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_OUT,
1168                               cmd_out, cmd_out_len);
1169 }
1170
1171 static int devx_umem_get(struct mlx5_ib_dev *dev, struct ib_ucontext *ucontext,
1172                          struct uverbs_attr_bundle *attrs,
1173                          struct devx_umem *obj)
1174 {
1175         u64 addr;
1176         size_t size;
1177         u32 access;
1178         int npages;
1179         int err;
1180         u32 page_mask;
1181
1182         if (uverbs_copy_from(&addr, attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_ADDR) ||
1183             uverbs_copy_from(&size, attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_LEN))
1184                 return -EFAULT;
1185
1186         err = uverbs_get_flags32(&access, attrs,
1187                                  MLX5_IB_ATTR_DEVX_UMEM_REG_ACCESS,
1188                                  IB_ACCESS_LOCAL_WRITE |
1189                                  IB_ACCESS_REMOTE_WRITE |
1190                                  IB_ACCESS_REMOTE_READ);
1191         if (err)
1192                 return err;
1193
1194         err = ib_check_mr_access(access);
1195         if (err)
1196                 return err;
1197
1198         obj->umem = ib_umem_get(ucontext, addr, size, access, 0);
1199         if (IS_ERR(obj->umem))
1200                 return PTR_ERR(obj->umem);
1201
1202         mlx5_ib_cont_pages(obj->umem, obj->umem->address,
1203                            MLX5_MKEY_PAGE_SHIFT_MASK, &npages,
1204                            &obj->page_shift, &obj->ncont, NULL);
1205
1206         if (!npages) {
1207                 ib_umem_release(obj->umem);
1208                 return -EINVAL;
1209         }
1210
1211         page_mask = (1 << obj->page_shift) - 1;
1212         obj->page_offset = obj->umem->address & page_mask;
1213
1214         return 0;
1215 }
1216
1217 static int devx_umem_reg_cmd_alloc(struct uverbs_attr_bundle *attrs,
1218                                    struct devx_umem *obj,
1219                                    struct devx_umem_reg_cmd *cmd)
1220 {
1221         cmd->inlen = MLX5_ST_SZ_BYTES(create_umem_in) +
1222                     (MLX5_ST_SZ_BYTES(mtt) * obj->ncont);
1223         cmd->in = uverbs_zalloc(attrs, cmd->inlen);
1224         return PTR_ERR_OR_ZERO(cmd->in);
1225 }
1226
1227 static void devx_umem_reg_cmd_build(struct mlx5_ib_dev *dev,
1228                                     struct devx_umem *obj,
1229                                     struct devx_umem_reg_cmd *cmd)
1230 {
1231         void *umem;
1232         __be64 *mtt;
1233
1234         umem = MLX5_ADDR_OF(create_umem_in, cmd->in, umem);
1235         mtt = (__be64 *)MLX5_ADDR_OF(umem, umem, mtt);
1236
1237         MLX5_SET(create_umem_in, cmd->in, opcode, MLX5_CMD_OP_CREATE_UMEM);
1238         MLX5_SET64(umem, umem, num_of_mtt, obj->ncont);
1239         MLX5_SET(umem, umem, log_page_size, obj->page_shift -
1240                                             MLX5_ADAPTER_PAGE_SHIFT);
1241         MLX5_SET(umem, umem, page_offset, obj->page_offset);
1242         mlx5_ib_populate_pas(dev, obj->umem, obj->page_shift, mtt,
1243                              (obj->umem->writable ? MLX5_IB_MTT_WRITE : 0) |
1244                              MLX5_IB_MTT_READ);
1245 }
1246
1247 static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_UMEM_REG)(
1248         struct uverbs_attr_bundle *attrs)
1249 {
1250         struct devx_umem_reg_cmd cmd;
1251         struct devx_umem *obj;
1252         struct ib_uobject *uobj = uverbs_attr_get_uobject(
1253                 attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_HANDLE);
1254         u32 obj_id;
1255         struct mlx5_ib_ucontext *c = to_mucontext(uobj->context);
1256         struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device);
1257         int err;
1258
1259         if (!c->devx_uid)
1260                 return -EINVAL;
1261
1262         obj = kzalloc(sizeof(struct devx_umem), GFP_KERNEL);
1263         if (!obj)
1264                 return -ENOMEM;
1265
1266         err = devx_umem_get(dev, &c->ibucontext, attrs, obj);
1267         if (err)
1268                 goto err_obj_free;
1269
1270         err = devx_umem_reg_cmd_alloc(attrs, obj, &cmd);
1271         if (err)
1272                 goto err_umem_release;
1273
1274         devx_umem_reg_cmd_build(dev, obj, &cmd);
1275
1276         MLX5_SET(create_umem_in, cmd.in, uid, c->devx_uid);
1277         err = mlx5_cmd_exec(dev->mdev, cmd.in, cmd.inlen, cmd.out,
1278                             sizeof(cmd.out));
1279         if (err)
1280                 goto err_umem_release;
1281
1282         obj->mdev = dev->mdev;
1283         uobj->object = obj;
1284         devx_obj_build_destroy_cmd(cmd.in, cmd.out, obj->dinbox, &obj->dinlen, &obj_id);
1285         err = uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_OUT_ID, &obj_id, sizeof(obj_id));
1286         if (err)
1287                 goto err_umem_destroy;
1288
1289         return 0;
1290
1291 err_umem_destroy:
1292         mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, cmd.out, sizeof(cmd.out));
1293 err_umem_release:
1294         ib_umem_release(obj->umem);
1295 err_obj_free:
1296         kfree(obj);
1297         return err;
1298 }
1299
1300 static int devx_umem_cleanup(struct ib_uobject *uobject,
1301                              enum rdma_remove_reason why)
1302 {
1303         struct devx_umem *obj = uobject->object;
1304         u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
1305         int err;
1306
1307         err = mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, out, sizeof(out));
1308         if (ib_is_destroy_retryable(err, why, uobject))
1309                 return err;
1310
1311         ib_umem_release(obj->umem);
1312         kfree(obj);
1313         return 0;
1314 }
1315
1316 DECLARE_UVERBS_NAMED_METHOD(
1317         MLX5_IB_METHOD_DEVX_UMEM_REG,
1318         UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_UMEM_REG_HANDLE,
1319                         MLX5_IB_OBJECT_DEVX_UMEM,
1320                         UVERBS_ACCESS_NEW,
1321                         UA_MANDATORY),
1322         UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_ADDR,
1323                            UVERBS_ATTR_TYPE(u64),
1324                            UA_MANDATORY),
1325         UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_LEN,
1326                            UVERBS_ATTR_TYPE(u64),
1327                            UA_MANDATORY),
1328         UVERBS_ATTR_FLAGS_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_ACCESS,
1329                              enum ib_access_flags),
1330         UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_UMEM_REG_OUT_ID,
1331                             UVERBS_ATTR_TYPE(u32),
1332                             UA_MANDATORY));
1333
1334 DECLARE_UVERBS_NAMED_METHOD_DESTROY(
1335         MLX5_IB_METHOD_DEVX_UMEM_DEREG,
1336         UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_UMEM_DEREG_HANDLE,
1337                         MLX5_IB_OBJECT_DEVX_UMEM,
1338                         UVERBS_ACCESS_DESTROY,
1339                         UA_MANDATORY));
1340
1341 DECLARE_UVERBS_NAMED_METHOD(
1342         MLX5_IB_METHOD_DEVX_QUERY_EQN,
1343         UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_QUERY_EQN_USER_VEC,
1344                            UVERBS_ATTR_TYPE(u32),
1345                            UA_MANDATORY),
1346         UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_QUERY_EQN_DEV_EQN,
1347                             UVERBS_ATTR_TYPE(u32),
1348                             UA_MANDATORY));
1349
1350 DECLARE_UVERBS_NAMED_METHOD(
1351         MLX5_IB_METHOD_DEVX_QUERY_UAR,
1352         UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_QUERY_UAR_USER_IDX,
1353                            UVERBS_ATTR_TYPE(u32),
1354                            UA_MANDATORY),
1355         UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_QUERY_UAR_DEV_IDX,
1356                             UVERBS_ATTR_TYPE(u32),
1357                             UA_MANDATORY));
1358
1359 DECLARE_UVERBS_NAMED_METHOD(
1360         MLX5_IB_METHOD_DEVX_OTHER,
1361         UVERBS_ATTR_PTR_IN(
1362                 MLX5_IB_ATTR_DEVX_OTHER_CMD_IN,
1363                 UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)),
1364                 UA_MANDATORY,
1365                 UA_ALLOC_AND_COPY),
1366         UVERBS_ATTR_PTR_OUT(
1367                 MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT,
1368                 UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)),
1369                 UA_MANDATORY));
1370
1371 DECLARE_UVERBS_NAMED_METHOD(
1372         MLX5_IB_METHOD_DEVX_OBJ_CREATE,
1373         UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE,
1374                         MLX5_IB_OBJECT_DEVX_OBJ,
1375                         UVERBS_ACCESS_NEW,
1376                         UA_MANDATORY),
1377         UVERBS_ATTR_PTR_IN(
1378                 MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN,
1379                 UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)),
1380                 UA_MANDATORY,
1381                 UA_ALLOC_AND_COPY),
1382         UVERBS_ATTR_PTR_OUT(
1383                 MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT,
1384                 UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)),
1385                 UA_MANDATORY));
1386
1387 DECLARE_UVERBS_NAMED_METHOD_DESTROY(
1388         MLX5_IB_METHOD_DEVX_OBJ_DESTROY,
1389         UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_DESTROY_HANDLE,
1390                         MLX5_IB_OBJECT_DEVX_OBJ,
1391                         UVERBS_ACCESS_DESTROY,
1392                         UA_MANDATORY));
1393
1394 DECLARE_UVERBS_NAMED_METHOD(
1395         MLX5_IB_METHOD_DEVX_OBJ_MODIFY,
1396         UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_MODIFY_HANDLE,
1397                         UVERBS_IDR_ANY_OBJECT,
1398                         UVERBS_ACCESS_WRITE,
1399                         UA_MANDATORY),
1400         UVERBS_ATTR_PTR_IN(
1401                 MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN,
1402                 UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)),
1403                 UA_MANDATORY,
1404                 UA_ALLOC_AND_COPY),
1405         UVERBS_ATTR_PTR_OUT(
1406                 MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_OUT,
1407                 UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)),
1408                 UA_MANDATORY));
1409
1410 DECLARE_UVERBS_NAMED_METHOD(
1411         MLX5_IB_METHOD_DEVX_OBJ_QUERY,
1412         UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_QUERY_HANDLE,
1413                         UVERBS_IDR_ANY_OBJECT,
1414                         UVERBS_ACCESS_READ,
1415                         UA_MANDATORY),
1416         UVERBS_ATTR_PTR_IN(
1417                 MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN,
1418                 UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)),
1419                 UA_MANDATORY,
1420                 UA_ALLOC_AND_COPY),
1421         UVERBS_ATTR_PTR_OUT(
1422                 MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_OUT,
1423                 UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)),
1424                 UA_MANDATORY));
1425
1426 DECLARE_UVERBS_GLOBAL_METHODS(MLX5_IB_OBJECT_DEVX,
1427                               &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OTHER),
1428                               &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_QUERY_UAR),
1429                               &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_QUERY_EQN));
1430
1431 DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_DEVX_OBJ,
1432                             UVERBS_TYPE_ALLOC_IDR(devx_obj_cleanup),
1433                             &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_CREATE),
1434                             &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_DESTROY),
1435                             &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_MODIFY),
1436                             &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_QUERY));
1437
1438 DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_DEVX_UMEM,
1439                             UVERBS_TYPE_ALLOC_IDR(devx_umem_cleanup),
1440                             &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_UMEM_REG),
1441                             &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_UMEM_DEREG));
1442
1443 static bool devx_is_supported(struct ib_device *device)
1444 {
1445         struct mlx5_ib_dev *dev = to_mdev(device);
1446
1447         return !dev->rep && MLX5_CAP_GEN(dev->mdev, log_max_uctx);
1448 }
1449
1450 const struct uapi_definition mlx5_ib_devx_defs[] = {
1451         UAPI_DEF_CHAIN_OBJ_TREE_NAMED(
1452                 MLX5_IB_OBJECT_DEVX,
1453                 UAPI_DEF_IS_OBJ_SUPPORTED(devx_is_supported)),
1454         UAPI_DEF_CHAIN_OBJ_TREE_NAMED(
1455                 MLX5_IB_OBJECT_DEVX_OBJ,
1456                 UAPI_DEF_IS_OBJ_SUPPORTED(devx_is_supported)),
1457         UAPI_DEF_CHAIN_OBJ_TREE_NAMED(
1458                 MLX5_IB_OBJECT_DEVX_UMEM,
1459                 UAPI_DEF_IS_OBJ_SUPPORTED(devx_is_supported)),
1460         {},
1461 };