drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c

   1 /*
   2  * Copyright (c) 2015, Mellanox Technologies. All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32
  33 #include <linux/mlx5/driver.h>
  34 #include <linux/mlx5/device.h>
  35 #include <linux/mlx5/mlx5_ifc.h>
  36
  37 #include "fs_core.h"
  38 #include "fs_cmd.h"
  39 #include "mlx5_core.h"
  40 #include "eswitch.h"
  41
  42 static int mlx5_cmd_stub_update_root_ft(struct mlx5_flow_root_namespace *ns,
  43                                         struct mlx5_flow_table *ft,
  44                                         u32 underlay_qpn,
  45                                         bool disconnect)
  46 {
  47         return 0;
  48 }
  49
  50 static int mlx5_cmd_stub_create_flow_table(struct mlx5_flow_root_namespace *ns,
  51                                            struct mlx5_flow_table *ft,
  52                                            unsigned int log_size,
  53                                            struct mlx5_flow_table *next_ft)
  54 {
  55         return 0;
  56 }
  57
  58 static int mlx5_cmd_stub_destroy_flow_table(struct mlx5_flow_root_namespace *ns,
  59                                             struct mlx5_flow_table *ft)
  60 {
  61         return 0;
  62 }
  63
  64 static int mlx5_cmd_stub_modify_flow_table(struct mlx5_flow_root_namespace *ns,
  65                                            struct mlx5_flow_table *ft,
  66                                            struct mlx5_flow_table *next_ft)
  67 {
  68         return 0;
  69 }
  70
  71 static int mlx5_cmd_stub_create_flow_group(struct mlx5_flow_root_namespace *ns,
  72                                            struct mlx5_flow_table *ft,
  73                                            u32 *in,
  74                                            struct mlx5_flow_group *fg)
  75 {
  76         return 0;
  77 }
  78
  79 static int mlx5_cmd_stub_destroy_flow_group(struct mlx5_flow_root_namespace *ns,
  80                                             struct mlx5_flow_table *ft,
  81                                             struct mlx5_flow_group *fg)
  82 {
  83         return 0;
  84 }
  85
  86 static int mlx5_cmd_stub_create_fte(struct mlx5_flow_root_namespace *ns,
  87                                     struct mlx5_flow_table *ft,
  88                                     struct mlx5_flow_group *group,
  89                                     struct fs_fte *fte)
  90 {
  91         return 0;
  92 }
  93
  94 static int mlx5_cmd_stub_update_fte(struct mlx5_flow_root_namespace *ns,
  95                                     struct mlx5_flow_table *ft,
  96                                     struct mlx5_flow_group *group,
  97                                     int modify_mask,
  98                                     struct fs_fte *fte)
  99 {
 100         return -EOPNOTSUPP;
 101 }
 102
 103 static int mlx5_cmd_stub_delete_fte(struct mlx5_flow_root_namespace *ns,
 104                                     struct mlx5_flow_table *ft,
 105                                     struct fs_fte *fte)
 106 {
 107         return 0;
 108 }
 109
 110 static int mlx5_cmd_update_root_ft(struct mlx5_flow_root_namespace *ns,
 111                                    struct mlx5_flow_table *ft, u32 underlay_qpn,
 112                                    bool disconnect)
 113 {
 114         u32 in[MLX5_ST_SZ_DW(set_flow_table_root_in)]   = {0};
 115         u32 out[MLX5_ST_SZ_DW(set_flow_table_root_out)] = {0};
 116         struct mlx5_core_dev *dev = ns->dev;
 117
 118         if ((MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_IB) &&
 119             underlay_qpn == 0)
 120                 return 0;
 121
 122         MLX5_SET(set_flow_table_root_in, in, opcode,
 123                  MLX5_CMD_OP_SET_FLOW_TABLE_ROOT);
 124         MLX5_SET(set_flow_table_root_in, in, table_type, ft->type);
 125
 126         if (disconnect) {
 127                 MLX5_SET(set_flow_table_root_in, in, op_mod, 1);
 128                 MLX5_SET(set_flow_table_root_in, in, table_id, 0);
 129         } else {
 130                 MLX5_SET(set_flow_table_root_in, in, op_mod, 0);
 131                 MLX5_SET(set_flow_table_root_in, in, table_id, ft->id);
 132         }
 133
 134         MLX5_SET(set_flow_table_root_in, in, underlay_qpn, underlay_qpn);
 135         if (ft->vport) {
 136                 MLX5_SET(set_flow_table_root_in, in, vport_number, ft->vport);
 137                 MLX5_SET(set_flow_table_root_in, in, other_vport, 1);
 138         }
 139
 140         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 141 }
 142
 143 static int mlx5_cmd_create_flow_table(struct mlx5_flow_root_namespace *ns,
 144                                       struct mlx5_flow_table *ft,
 145                                       unsigned int log_size,
 146                                       struct mlx5_flow_table *next_ft)
 147 {
 148         int en_encap = !!(ft->flags & MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT);
 149         int en_decap = !!(ft->flags & MLX5_FLOW_TABLE_TUNNEL_EN_DECAP);
 150         int term = !!(ft->flags & MLX5_FLOW_TABLE_TERMINATION);
 151         u32 out[MLX5_ST_SZ_DW(create_flow_table_out)] = {0};
 152         u32 in[MLX5_ST_SZ_DW(create_flow_table_in)]   = {0};
 153         struct mlx5_core_dev *dev = ns->dev;
 154         int err;
 155
 156         MLX5_SET(create_flow_table_in, in, opcode,
 157                  MLX5_CMD_OP_CREATE_FLOW_TABLE);
 158
 159         MLX5_SET(create_flow_table_in, in, table_type, ft->type);
 160         MLX5_SET(create_flow_table_in, in, flow_table_context.level, ft->level);
 161         MLX5_SET(create_flow_table_in, in, flow_table_context.log_size, log_size);
 162         if (ft->vport) {
 163                 MLX5_SET(create_flow_table_in, in, vport_number, ft->vport);
 164                 MLX5_SET(create_flow_table_in, in, other_vport, 1);
 165         }
 166
 167         MLX5_SET(create_flow_table_in, in, flow_table_context.decap_en,
 168                  en_decap);
 169         MLX5_SET(create_flow_table_in, in, flow_table_context.reformat_en,
 170                  en_encap);
 171         MLX5_SET(create_flow_table_in, in, flow_table_context.termination_table,
 172                  term);
 173
 174         switch (ft->op_mod) {
 175         case FS_FT_OP_MOD_NORMAL:
 176                 if (next_ft) {
 177                         MLX5_SET(create_flow_table_in, in,
 178                                  flow_table_context.table_miss_action,
 179                                  MLX5_FLOW_TABLE_MISS_ACTION_FWD);
 180                         MLX5_SET(create_flow_table_in, in,
 181                                  flow_table_context.table_miss_id, next_ft->id);
 182                 } else {
 183                         MLX5_SET(create_flow_table_in, in,
 184                                  flow_table_context.table_miss_action,
 185                                  ns->def_miss_action);
 186                 }
 187                 break;
 188
 189         case FS_FT_OP_MOD_LAG_DEMUX:
 190                 MLX5_SET(create_flow_table_in, in, op_mod, 0x1);
 191                 if (next_ft)
 192                         MLX5_SET(create_flow_table_in, in,
 193                                  flow_table_context.lag_master_next_table_id,
 194                                  next_ft->id);
 195                 break;
 196         }
 197
 198         err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 199         if (!err)
 200                 ft->id = MLX5_GET(create_flow_table_out, out,
 201                                   table_id);
 202         return err;
 203 }
 204
 205 static int mlx5_cmd_destroy_flow_table(struct mlx5_flow_root_namespace *ns,
 206                                        struct mlx5_flow_table *ft)
 207 {
 208         u32 in[MLX5_ST_SZ_DW(destroy_flow_table_in)]   = {0};
 209         u32 out[MLX5_ST_SZ_DW(destroy_flow_table_out)] = {0};
 210         struct mlx5_core_dev *dev = ns->dev;
 211
 212         MLX5_SET(destroy_flow_table_in, in, opcode,
 213                  MLX5_CMD_OP_DESTROY_FLOW_TABLE);
 214         MLX5_SET(destroy_flow_table_in, in, table_type, ft->type);
 215         MLX5_SET(destroy_flow_table_in, in, table_id, ft->id);
 216         if (ft->vport) {
 217                 MLX5_SET(destroy_flow_table_in, in, vport_number, ft->vport);
 218                 MLX5_SET(destroy_flow_table_in, in, other_vport, 1);
 219         }
 220
 221         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 222 }
 223
 224 static int mlx5_cmd_modify_flow_table(struct mlx5_flow_root_namespace *ns,
 225                                       struct mlx5_flow_table *ft,
 226                                       struct mlx5_flow_table *next_ft)
 227 {
 228         u32 in[MLX5_ST_SZ_DW(modify_flow_table_in)]   = {0};
 229         u32 out[MLX5_ST_SZ_DW(modify_flow_table_out)] = {0};
 230         struct mlx5_core_dev *dev = ns->dev;
 231
 232         MLX5_SET(modify_flow_table_in, in, opcode,
 233                  MLX5_CMD_OP_MODIFY_FLOW_TABLE);
 234         MLX5_SET(modify_flow_table_in, in, table_type, ft->type);
 235         MLX5_SET(modify_flow_table_in, in, table_id, ft->id);
 236
 237         if (ft->op_mod == FS_FT_OP_MOD_LAG_DEMUX) {
 238                 MLX5_SET(modify_flow_table_in, in, modify_field_select,
 239                          MLX5_MODIFY_FLOW_TABLE_LAG_NEXT_TABLE_ID);
 240                 if (next_ft) {
 241                         MLX5_SET(modify_flow_table_in, in,
 242                                  flow_table_context.lag_master_next_table_id, next_ft->id);
 243                 } else {
 244                         MLX5_SET(modify_flow_table_in, in,
 245                                  flow_table_context.lag_master_next_table_id, 0);
 246                 }
 247         } else {
 248                 if (ft->vport) {
 249                         MLX5_SET(modify_flow_table_in, in, vport_number,
 250                                  ft->vport);
 251                         MLX5_SET(modify_flow_table_in, in, other_vport, 1);
 252                 }
 253                 MLX5_SET(modify_flow_table_in, in, modify_field_select,
 254                          MLX5_MODIFY_FLOW_TABLE_MISS_TABLE_ID);
 255                 if (next_ft) {
 256                         MLX5_SET(modify_flow_table_in, in,
 257                                  flow_table_context.table_miss_action,
 258                                  MLX5_FLOW_TABLE_MISS_ACTION_FWD);
 259                         MLX5_SET(modify_flow_table_in, in,
 260                                  flow_table_context.table_miss_id,
 261                                  next_ft->id);
 262                 } else {
 263                         MLX5_SET(modify_flow_table_in, in,
 264                                  flow_table_context.table_miss_action,
 265                                  ns->def_miss_action);
 266                 }
 267         }
 268
 269         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 270 }
 271
 272 static int mlx5_cmd_create_flow_group(struct mlx5_flow_root_namespace *ns,
 273                                       struct mlx5_flow_table *ft,
 274                                       u32 *in,
 275                                       struct mlx5_flow_group *fg)
 276 {
 277         u32 out[MLX5_ST_SZ_DW(create_flow_group_out)] = {0};
 278         int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
 279         struct mlx5_core_dev *dev = ns->dev;
 280         int err;
 281
 282         MLX5_SET(create_flow_group_in, in, opcode,
 283                  MLX5_CMD_OP_CREATE_FLOW_GROUP);
 284         MLX5_SET(create_flow_group_in, in, table_type, ft->type);
 285         MLX5_SET(create_flow_group_in, in, table_id, ft->id);
 286         if (ft->vport) {
 287                 MLX5_SET(create_flow_group_in, in, vport_number, ft->vport);
 288                 MLX5_SET(create_flow_group_in, in, other_vport, 1);
 289         }
 290
 291         err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 292         if (!err)
 293                 fg->id = MLX5_GET(create_flow_group_out, out,
 294                                   group_id);
 295         return err;
 296 }
 297
 298 static int mlx5_cmd_destroy_flow_group(struct mlx5_flow_root_namespace *ns,
 299                                        struct mlx5_flow_table *ft,
 300                                        struct mlx5_flow_group *fg)
 301 {
 302         u32 out[MLX5_ST_SZ_DW(destroy_flow_group_out)] = {0};
 303         u32 in[MLX5_ST_SZ_DW(destroy_flow_group_in)]   = {0};
 304         struct mlx5_core_dev *dev = ns->dev;
 305
 306         MLX5_SET(destroy_flow_group_in, in, opcode,
 307                  MLX5_CMD_OP_DESTROY_FLOW_GROUP);
 308         MLX5_SET(destroy_flow_group_in, in, table_type, ft->type);
 309         MLX5_SET(destroy_flow_group_in, in, table_id, ft->id);
 310         MLX5_SET(destroy_flow_group_in, in, group_id, fg->id);
 311         if (ft->vport) {
 312                 MLX5_SET(destroy_flow_group_in, in, vport_number, ft->vport);
 313                 MLX5_SET(destroy_flow_group_in, in, other_vport, 1);
 314         }
 315
 316         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 317 }
 318
 319 static int mlx5_set_extended_dest(struct mlx5_core_dev *dev,
 320                                   struct fs_fte *fte, bool *extended_dest)
 321 {
 322         int fw_log_max_fdb_encap_uplink =
 323                 MLX5_CAP_ESW(dev, log_max_fdb_encap_uplink);
 324         int num_fwd_destinations = 0;
 325         struct mlx5_flow_rule *dst;
 326         int num_encap = 0;
 327
 328         *extended_dest = false;
 329         if (!(fte->action.action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST))
 330                 return 0;
 331
 332         list_for_each_entry(dst, &fte->node.children, node.list) {
 333                 if (dst->dest_attr.type == MLX5_FLOW_DESTINATION_TYPE_COUNTER)
 334                         continue;
 335                 if (dst->dest_attr.type == MLX5_FLOW_DESTINATION_TYPE_VPORT &&
 336                     dst->dest_attr.vport.flags & MLX5_FLOW_DEST_VPORT_REFORMAT_ID)
 337                         num_encap++;
 338                 num_fwd_destinations++;
 339         }
 340         if (num_fwd_destinations > 1 && num_encap > 0)
 341                 *extended_dest = true;
 342
 343         if (*extended_dest && !fw_log_max_fdb_encap_uplink) {
 344                 mlx5_core_warn(dev, "FW does not support extended destination");
 345                 return -EOPNOTSUPP;
 346         }
 347         if (num_encap > (1 << fw_log_max_fdb_encap_uplink)) {
 348                 mlx5_core_warn(dev, "FW does not support more than %d encaps",
 349                                1 << fw_log_max_fdb_encap_uplink);
 350                 return -EOPNOTSUPP;
 351         }
 352
 353         return 0;
 354 }
 355 static int mlx5_cmd_set_fte(struct mlx5_core_dev *dev,
 356                             int opmod, int modify_mask,
 357                             struct mlx5_flow_table *ft,
 358                             unsigned group_id,
 359                             struct fs_fte *fte)
 360 {
 361         u32 out[MLX5_ST_SZ_DW(set_fte_out)] = {0};
 362         bool extended_dest = false;
 363         struct mlx5_flow_rule *dst;
 364         void *in_flow_context, *vlan;
 365         void *in_match_value;
 366         unsigned int inlen;
 367         int dst_cnt_size;
 368         void *in_dests;
 369         u32 *in;
 370         int err;
 371
 372         if (mlx5_set_extended_dest(dev, fte, &extended_dest))
 373                 return -EOPNOTSUPP;
 374
 375         if (!extended_dest)
 376                 dst_cnt_size = MLX5_ST_SZ_BYTES(dest_format_struct);
 377         else
 378                 dst_cnt_size = MLX5_ST_SZ_BYTES(extended_dest_format);
 379
 380         inlen = MLX5_ST_SZ_BYTES(set_fte_in) + fte->dests_size * dst_cnt_size;
 381         in = kvzalloc(inlen, GFP_KERNEL);
 382         if (!in)
 383                 return -ENOMEM;
 384
 385         MLX5_SET(set_fte_in, in, opcode, MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY);
 386         MLX5_SET(set_fte_in, in, op_mod, opmod);
 387         MLX5_SET(set_fte_in, in, modify_enable_mask, modify_mask);
 388         MLX5_SET(set_fte_in, in, table_type, ft->type);
 389         MLX5_SET(set_fte_in, in, table_id,   ft->id);
 390         MLX5_SET(set_fte_in, in, flow_index, fte->index);
 391         if (ft->vport) {
 392                 MLX5_SET(set_fte_in, in, vport_number, ft->vport);
 393                 MLX5_SET(set_fte_in, in, other_vport, 1);
 394         }
 395
 396         in_flow_context = MLX5_ADDR_OF(set_fte_in, in, flow_context);
 397         MLX5_SET(flow_context, in_flow_context, group_id, group_id);
 398
 399         MLX5_SET(flow_context, in_flow_context, flow_tag,
 400                  fte->flow_context.flow_tag);
 401         MLX5_SET(flow_context, in_flow_context, flow_source,
 402                  fte->flow_context.flow_source);
 403
 404         MLX5_SET(flow_context, in_flow_context, extended_destination,
 405                  extended_dest);
 406         if (extended_dest) {
 407                 u32 action;
 408
 409                 action = fte->action.action &
 410                         ~MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT;
 411                 MLX5_SET(flow_context, in_flow_context, action, action);
 412         } else {
 413                 MLX5_SET(flow_context, in_flow_context, action,
 414                          fte->action.action);
 415                 MLX5_SET(flow_context, in_flow_context, packet_reformat_id,
 416                          fte->action.reformat_id);
 417         }
 418         MLX5_SET(flow_context, in_flow_context, modify_header_id,
 419                  fte->action.modify_id);
 420
 421         vlan = MLX5_ADDR_OF(flow_context, in_flow_context, push_vlan);
 422
 423         MLX5_SET(vlan, vlan, ethtype, fte->action.vlan[0].ethtype);
 424         MLX5_SET(vlan, vlan, vid, fte->action.vlan[0].vid);
 425         MLX5_SET(vlan, vlan, prio, fte->action.vlan[0].prio);
 426
 427         vlan = MLX5_ADDR_OF(flow_context, in_flow_context, push_vlan_2);
 428
 429         MLX5_SET(vlan, vlan, ethtype, fte->action.vlan[1].ethtype);
 430         MLX5_SET(vlan, vlan, vid, fte->action.vlan[1].vid);
 431         MLX5_SET(vlan, vlan, prio, fte->action.vlan[1].prio);
 432
 433         in_match_value = MLX5_ADDR_OF(flow_context, in_flow_context,
 434                                       match_value);
 435         memcpy(in_match_value, &fte->val, sizeof(fte->val));
 436
 437         in_dests = MLX5_ADDR_OF(flow_context, in_flow_context, destination);
 438         if (fte->action.action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
 439                 int list_size = 0;
 440
 441                 list_for_each_entry(dst, &fte->node.children, node.list) {
 442                         unsigned int id, type = dst->dest_attr.type;
 443
 444                         if (type == MLX5_FLOW_DESTINATION_TYPE_COUNTER)
 445                                 continue;
 446
 447                         switch (type) {
 448                         case MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE_NUM:
 449                                 id = dst->dest_attr.ft_num;
 450                                 type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
 451                                 break;
 452                         case MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE:
 453                                 id = dst->dest_attr.ft->id;
 454                                 break;
 455                         case MLX5_FLOW_DESTINATION_TYPE_VPORT:
 456                                 id = dst->dest_attr.vport.num;
 457                                 MLX5_SET(dest_format_struct, in_dests,
 458                                          destination_eswitch_owner_vhca_id_valid,
 459                                          !!(dst->dest_attr.vport.flags &
 460                                             MLX5_FLOW_DEST_VPORT_VHCA_ID));
 461                                 MLX5_SET(dest_format_struct, in_dests,
 462                                          destination_eswitch_owner_vhca_id,
 463                                          dst->dest_attr.vport.vhca_id);
 464                                 if (extended_dest) {
 465                                         MLX5_SET(dest_format_struct, in_dests,
 466                                                  packet_reformat,
 467                                                  !!(dst->dest_attr.vport.flags &
 468                                                     MLX5_FLOW_DEST_VPORT_REFORMAT_ID));
 469                                         MLX5_SET(extended_dest_format, in_dests,
 470                                                  packet_reformat_id,
 471                                                  dst->dest_attr.vport.reformat_id);
 472                                 }
 473                                 break;
 474                         default:
 475                                 id = dst->dest_attr.tir_num;
 476                         }
 477
 478                         MLX5_SET(dest_format_struct, in_dests, destination_type,
 479                                  type);
 480                         MLX5_SET(dest_format_struct, in_dests, destination_id, id);
 481                         in_dests += dst_cnt_size;
 482                         list_size++;
 483                 }
 484
 485                 MLX5_SET(flow_context, in_flow_context, destination_list_size,
 486                          list_size);
 487         }
 488
 489         if (fte->action.action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
 490                 int max_list_size = BIT(MLX5_CAP_FLOWTABLE_TYPE(dev,
 491                                         log_max_flow_counter,
 492                                         ft->type));
 493                 int list_size = 0;
 494
 495                 list_for_each_entry(dst, &fte->node.children, node.list) {
 496                         if (dst->dest_attr.type !=
 497                             MLX5_FLOW_DESTINATION_TYPE_COUNTER)
 498                                 continue;
 499
 500                         MLX5_SET(flow_counter_list, in_dests, flow_counter_id,
 501                                  dst->dest_attr.counter_id);
 502                         in_dests += dst_cnt_size;
 503                         list_size++;
 504                 }
 505                 if (list_size > max_list_size) {
 506                         err = -EINVAL;
 507                         goto err_out;
 508                 }
 509
 510                 MLX5_SET(flow_context, in_flow_context, flow_counter_list_size,
 511                          list_size);
 512         }
 513
 514         err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 515 err_out:
 516         kvfree(in);
 517         return err;
 518 }
 519
 520 static int mlx5_cmd_create_fte(struct mlx5_flow_root_namespace *ns,
 521                                struct mlx5_flow_table *ft,
 522                                struct mlx5_flow_group *group,
 523                                struct fs_fte *fte)
 524 {
 525         struct mlx5_core_dev *dev = ns->dev;
 526         unsigned int group_id = group->id;
 527
 528         return mlx5_cmd_set_fte(dev, 0, 0, ft, group_id, fte);
 529 }
 530
 531 static int mlx5_cmd_update_fte(struct mlx5_flow_root_namespace *ns,
 532                                struct mlx5_flow_table *ft,
 533                                struct mlx5_flow_group *fg,
 534                                int modify_mask,
 535                                struct fs_fte *fte)
 536 {
 537         int opmod;
 538         struct mlx5_core_dev *dev = ns->dev;
 539         int atomic_mod_cap = MLX5_CAP_FLOWTABLE(dev,
 540                                                 flow_table_properties_nic_receive.
 541                                                 flow_modify_en);
 542         if (!atomic_mod_cap)
 543                 return -EOPNOTSUPP;
 544         opmod = 1;
 545
 546         return  mlx5_cmd_set_fte(dev, opmod, modify_mask, ft, fg->id, fte);
 547 }
 548
 549 static int mlx5_cmd_delete_fte(struct mlx5_flow_root_namespace *ns,
 550                                struct mlx5_flow_table *ft,
 551                                struct fs_fte *fte)
 552 {
 553         u32 out[MLX5_ST_SZ_DW(delete_fte_out)] = {0};
 554         u32 in[MLX5_ST_SZ_DW(delete_fte_in)]   = {0};
 555         struct mlx5_core_dev *dev = ns->dev;
 556
 557         MLX5_SET(delete_fte_in, in, opcode, MLX5_CMD_OP_DELETE_FLOW_TABLE_ENTRY);
 558         MLX5_SET(delete_fte_in, in, table_type, ft->type);
 559         MLX5_SET(delete_fte_in, in, table_id, ft->id);
 560         MLX5_SET(delete_fte_in, in, flow_index, fte->index);
 561         if (ft->vport) {
 562                 MLX5_SET(delete_fte_in, in, vport_number, ft->vport);
 563                 MLX5_SET(delete_fte_in, in, other_vport, 1);
 564         }
 565
 566         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 567 }
 568
 569 int mlx5_cmd_fc_alloc(struct mlx5_core_dev *dev, u32 *id)
 570 {
 571         u32 in[MLX5_ST_SZ_DW(alloc_flow_counter_in)]   = {0};
 572         u32 out[MLX5_ST_SZ_DW(alloc_flow_counter_out)] = {0};
 573         int err;
 574
 575         MLX5_SET(alloc_flow_counter_in, in, opcode,
 576                  MLX5_CMD_OP_ALLOC_FLOW_COUNTER);
 577
 578         err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 579         if (!err)
 580                 *id = MLX5_GET(alloc_flow_counter_out, out, flow_counter_id);
 581         return err;
 582 }
 583
 584 int mlx5_cmd_fc_free(struct mlx5_core_dev *dev, u32 id)
 585 {
 586         u32 in[MLX5_ST_SZ_DW(dealloc_flow_counter_in)]   = {0};
 587         u32 out[MLX5_ST_SZ_DW(dealloc_flow_counter_out)] = {0};
 588
 589         MLX5_SET(dealloc_flow_counter_in, in, opcode,
 590                  MLX5_CMD_OP_DEALLOC_FLOW_COUNTER);
 591         MLX5_SET(dealloc_flow_counter_in, in, flow_counter_id, id);
 592         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 593 }
 594
 595 int mlx5_cmd_fc_query(struct mlx5_core_dev *dev, u32 id,
 596                       u64 *packets, u64 *bytes)
 597 {
 598         u32 out[MLX5_ST_SZ_BYTES(query_flow_counter_out) +
 599                 MLX5_ST_SZ_BYTES(traffic_counter)]   = {0};
 600         u32 in[MLX5_ST_SZ_DW(query_flow_counter_in)] = {0};
 601         void *stats;
 602         int err = 0;
 603
 604         MLX5_SET(query_flow_counter_in, in, opcode,
 605                  MLX5_CMD_OP_QUERY_FLOW_COUNTER);
 606         MLX5_SET(query_flow_counter_in, in, op_mod, 0);
 607         MLX5_SET(query_flow_counter_in, in, flow_counter_id, id);
 608         err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 609         if (err)
 610                 return err;
 611
 612         stats = MLX5_ADDR_OF(query_flow_counter_out, out, flow_statistics);
 613         *packets = MLX5_GET64(traffic_counter, stats, packets);
 614         *bytes = MLX5_GET64(traffic_counter, stats, octets);
 615         return 0;
 616 }
 617
 618 struct mlx5_cmd_fc_bulk {
 619         u32 id;
 620         int num;
 621         int outlen;
 622         u32 out[0];
 623 };
 624
 625 struct mlx5_cmd_fc_bulk *
 626 mlx5_cmd_fc_bulk_alloc(struct mlx5_core_dev *dev, u32 id, int num)
 627 {
 628         struct mlx5_cmd_fc_bulk *b;
 629         int outlen =
 630                 MLX5_ST_SZ_BYTES(query_flow_counter_out) +
 631                 MLX5_ST_SZ_BYTES(traffic_counter) * num;
 632
 633         b = kzalloc(sizeof(*b) + outlen, GFP_KERNEL);
 634         if (!b)
 635                 return NULL;
 636
 637         b->id = id;
 638         b->num = num;
 639         b->outlen = outlen;
 640
 641         return b;
 642 }
 643
 644 void mlx5_cmd_fc_bulk_free(struct mlx5_cmd_fc_bulk *b)
 645 {
 646         kfree(b);
 647 }
 648
 649 int
 650 mlx5_cmd_fc_bulk_query(struct mlx5_core_dev *dev, struct mlx5_cmd_fc_bulk *b)
 651 {
 652         u32 in[MLX5_ST_SZ_DW(query_flow_counter_in)] = {0};
 653
 654         MLX5_SET(query_flow_counter_in, in, opcode,
 655                  MLX5_CMD_OP_QUERY_FLOW_COUNTER);
 656         MLX5_SET(query_flow_counter_in, in, op_mod, 0);
 657         MLX5_SET(query_flow_counter_in, in, flow_counter_id, b->id);
 658         MLX5_SET(query_flow_counter_in, in, num_of_counters, b->num);
 659         return mlx5_cmd_exec(dev, in, sizeof(in), b->out, b->outlen);
 660 }
 661
 662 void mlx5_cmd_fc_bulk_get(struct mlx5_core_dev *dev,
 663                           struct mlx5_cmd_fc_bulk *b, u32 id,
 664                           u64 *packets, u64 *bytes)
 665 {
 666         int index = id - b->id;
 667         void *stats;
 668
 669         if (index < 0 || index >= b->num) {
 670                 mlx5_core_warn(dev, "Flow counter id (0x%x) out of range (0x%x..0x%x). Counter ignored.\n",
 671                                id, b->id, b->id + b->num - 1);
 672                 return;
 673         }
 674
 675         stats = MLX5_ADDR_OF(query_flow_counter_out, b->out,
 676                              flow_statistics[index]);
 677         *packets = MLX5_GET64(traffic_counter, stats, packets);
 678         *bytes = MLX5_GET64(traffic_counter, stats, octets);
 679 }
 680
 681 int mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
 682                                int reformat_type,
 683                                size_t size,
 684                                void *reformat_data,
 685                                enum mlx5_flow_namespace_type namespace,
 686                                u32 *packet_reformat_id)
 687 {
 688         u32 out[MLX5_ST_SZ_DW(alloc_packet_reformat_context_out)];
 689         void *packet_reformat_context_in;
 690         int max_encap_size;
 691         void *reformat;
 692         int inlen;
 693         int err;
 694         u32 *in;
 695
 696         if (namespace == MLX5_FLOW_NAMESPACE_FDB)
 697                 max_encap_size = MLX5_CAP_ESW(dev, max_encap_header_size);
 698         else
 699                 max_encap_size = MLX5_CAP_FLOWTABLE(dev, max_encap_header_size);
 700
 701         if (size > max_encap_size) {
 702                 mlx5_core_warn(dev, "encap size %zd too big, max supported is %d\n",
 703                                size, max_encap_size);
 704                 return -EINVAL;
 705         }
 706
 707         in = kzalloc(MLX5_ST_SZ_BYTES(alloc_packet_reformat_context_in) + size,
 708                      GFP_KERNEL);
 709         if (!in)
 710                 return -ENOMEM;
 711
 712         packet_reformat_context_in = MLX5_ADDR_OF(alloc_packet_reformat_context_in,
 713                                                   in, packet_reformat_context);
 714         reformat = MLX5_ADDR_OF(packet_reformat_context_in,
 715                                 packet_reformat_context_in,
 716                                 reformat_data);
 717         inlen = reformat - (void *)in  + size;
 718
 719         memset(in, 0, inlen);
 720         MLX5_SET(alloc_packet_reformat_context_in, in, opcode,
 721                  MLX5_CMD_OP_ALLOC_PACKET_REFORMAT_CONTEXT);
 722         MLX5_SET(packet_reformat_context_in, packet_reformat_context_in,
 723                  reformat_data_size, size);
 724         MLX5_SET(packet_reformat_context_in, packet_reformat_context_in,
 725                  reformat_type, reformat_type);
 726         memcpy(reformat, reformat_data, size);
 727
 728         memset(out, 0, sizeof(out));
 729         err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 730
 731         *packet_reformat_id = MLX5_GET(alloc_packet_reformat_context_out,
 732                                        out, packet_reformat_id);
 733         kfree(in);
 734         return err;
 735 }
 736 EXPORT_SYMBOL(mlx5_packet_reformat_alloc);
 737
 738 void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
 739                                   u32 packet_reformat_id)
 740 {
 741         u32 in[MLX5_ST_SZ_DW(dealloc_packet_reformat_context_in)];
 742         u32 out[MLX5_ST_SZ_DW(dealloc_packet_reformat_context_out)];
 743
 744         memset(in, 0, sizeof(in));
 745         MLX5_SET(dealloc_packet_reformat_context_in, in, opcode,
 746                  MLX5_CMD_OP_DEALLOC_PACKET_REFORMAT_CONTEXT);
 747         MLX5_SET(dealloc_packet_reformat_context_in, in, packet_reformat_id,
 748                  packet_reformat_id);
 749
 750         mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 751 }
 752 EXPORT_SYMBOL(mlx5_packet_reformat_dealloc);
 753
 754 int mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
 755                              u8 namespace, u8 num_actions,
 756                              void *modify_actions, u32 *modify_header_id)
 757 {
 758         u32 out[MLX5_ST_SZ_DW(alloc_modify_header_context_out)];
 759         int max_actions, actions_size, inlen, err;
 760         void *actions_in;
 761         u8 table_type;
 762         u32 *in;
 763
 764         switch (namespace) {
 765         case MLX5_FLOW_NAMESPACE_FDB:
 766                 max_actions = MLX5_CAP_ESW_FLOWTABLE_FDB(dev, max_modify_header_actions);
 767                 table_type = FS_FT_FDB;
 768                 break;
 769         case MLX5_FLOW_NAMESPACE_KERNEL:
 770         case MLX5_FLOW_NAMESPACE_BYPASS:
 771                 max_actions = MLX5_CAP_FLOWTABLE_NIC_RX(dev, max_modify_header_actions);
 772                 table_type = FS_FT_NIC_RX;
 773                 break;
 774         case MLX5_FLOW_NAMESPACE_EGRESS:
 775                 max_actions = MLX5_CAP_FLOWTABLE_NIC_TX(dev, max_modify_header_actions);
 776                 table_type = FS_FT_NIC_TX;
 777                 break;
 778         case MLX5_FLOW_NAMESPACE_ESW_INGRESS:
 779                 max_actions = MLX5_CAP_ESW_INGRESS_ACL(dev, max_modify_header_actions);
 780                 table_type = FS_FT_ESW_INGRESS_ACL;
 781                 break;
 782         default:
 783                 return -EOPNOTSUPP;
 784         }
 785
 786         if (num_actions > max_actions) {
 787                 mlx5_core_warn(dev, "too many modify header actions %d, max supported %d\n",
 788                                num_actions, max_actions);
 789                 return -EOPNOTSUPP;
 790         }
 791
 792         actions_size = MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto) * num_actions;
 793         inlen = MLX5_ST_SZ_BYTES(alloc_modify_header_context_in) + actions_size;
 794
 795         in = kzalloc(inlen, GFP_KERNEL);
 796         if (!in)
 797                 return -ENOMEM;
 798
 799         MLX5_SET(alloc_modify_header_context_in, in, opcode,
 800                  MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT);
 801         MLX5_SET(alloc_modify_header_context_in, in, table_type, table_type);
 802         MLX5_SET(alloc_modify_header_context_in, in, num_of_actions, num_actions);
 803
 804         actions_in = MLX5_ADDR_OF(alloc_modify_header_context_in, in, actions);
 805         memcpy(actions_in, modify_actions, actions_size);
 806
 807         memset(out, 0, sizeof(out));
 808         err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 809
 810         *modify_header_id = MLX5_GET(alloc_modify_header_context_out, out, modify_header_id);
 811         kfree(in);
 812         return err;
 813 }
 814 EXPORT_SYMBOL(mlx5_modify_header_alloc);
 815
 816 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev, u32 modify_header_id)
 817 {
 818         u32 in[MLX5_ST_SZ_DW(dealloc_modify_header_context_in)];
 819         u32 out[MLX5_ST_SZ_DW(dealloc_modify_header_context_out)];
 820
 821         memset(in, 0, sizeof(in));
 822         MLX5_SET(dealloc_modify_header_context_in, in, opcode,
 823                  MLX5_CMD_OP_DEALLOC_MODIFY_HEADER_CONTEXT);
 824         MLX5_SET(dealloc_modify_header_context_in, in, modify_header_id,
 825                  modify_header_id);
 826
 827         mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 828 }
 829 EXPORT_SYMBOL(mlx5_modify_header_dealloc);
 830
 831 static const struct mlx5_flow_cmds mlx5_flow_cmds = {
 832         .create_flow_table = mlx5_cmd_create_flow_table,
 833         .destroy_flow_table = mlx5_cmd_destroy_flow_table,
 834         .modify_flow_table = mlx5_cmd_modify_flow_table,
 835         .create_flow_group = mlx5_cmd_create_flow_group,
 836         .destroy_flow_group = mlx5_cmd_destroy_flow_group,
 837         .create_fte = mlx5_cmd_create_fte,
 838         .update_fte = mlx5_cmd_update_fte,
 839         .delete_fte = mlx5_cmd_delete_fte,
 840         .update_root_ft = mlx5_cmd_update_root_ft,
 841 };
 842
 843 static const struct mlx5_flow_cmds mlx5_flow_cmd_stubs = {
 844         .create_flow_table = mlx5_cmd_stub_create_flow_table,
 845         .destroy_flow_table = mlx5_cmd_stub_destroy_flow_table,
 846         .modify_flow_table = mlx5_cmd_stub_modify_flow_table,
 847         .create_flow_group = mlx5_cmd_stub_create_flow_group,
 848         .destroy_flow_group = mlx5_cmd_stub_destroy_flow_group,
 849         .create_fte = mlx5_cmd_stub_create_fte,
 850         .update_fte = mlx5_cmd_stub_update_fte,
 851         .delete_fte = mlx5_cmd_stub_delete_fte,
 852         .update_root_ft = mlx5_cmd_stub_update_root_ft,
 853 };
 854
 855 static const struct mlx5_flow_cmds *mlx5_fs_cmd_get_fw_cmds(void)
 856 {
 857         return &mlx5_flow_cmds;
 858 }
 859
 860 static const struct mlx5_flow_cmds *mlx5_fs_cmd_get_stub_cmds(void)
 861 {
 862         return &mlx5_flow_cmd_stubs;
 863 }
 864
 865 const struct mlx5_flow_cmds *mlx5_fs_cmd_get_default(enum fs_flow_table_type type)
 866 {
 867         switch (type) {
 868         case FS_FT_NIC_RX:
 869         case FS_FT_ESW_EGRESS_ACL:
 870         case FS_FT_ESW_INGRESS_ACL:
 871         case FS_FT_FDB:
 872         case FS_FT_SNIFFER_RX:
 873         case FS_FT_SNIFFER_TX:
 874         case FS_FT_NIC_TX:
 875         case FS_FT_RDMA_RX:
 876                 return mlx5_fs_cmd_get_fw_cmds();
 877         default:
 878                 return mlx5_fs_cmd_get_stub_cmds();
 879         }
 880 }