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 int mlx5_cmd_update_root_ft(struct mlx5_core_dev *dev,
  43                             struct mlx5_flow_table *ft, u32 underlay_qpn)
  44 {
  45         u32 in[MLX5_ST_SZ_DW(set_flow_table_root_in)]   = {0};
  46         u32 out[MLX5_ST_SZ_DW(set_flow_table_root_out)] = {0};
  47
  48         if ((MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_IB) &&
  49             underlay_qpn == 0)
  50                 return 0;
  51
  52         MLX5_SET(set_flow_table_root_in, in, opcode,
  53                  MLX5_CMD_OP_SET_FLOW_TABLE_ROOT);
  54         MLX5_SET(set_flow_table_root_in, in, table_type, ft->type);
  55         MLX5_SET(set_flow_table_root_in, in, table_id, ft->id);
  56         MLX5_SET(set_flow_table_root_in, in, underlay_qpn, underlay_qpn);
  57         if (ft->vport) {
  58                 MLX5_SET(set_flow_table_root_in, in, vport_number, ft->vport);
  59                 MLX5_SET(set_flow_table_root_in, in, other_vport, 1);
  60         }
  61
  62         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
  63 }
  64
  65 int mlx5_cmd_create_flow_table(struct mlx5_core_dev *dev,
  66                                u16 vport,
  67                                enum fs_flow_table_op_mod op_mod,
  68                                enum fs_flow_table_type type, unsigned int level,
  69                                unsigned int log_size, struct mlx5_flow_table
  70                                *next_ft, unsigned int *table_id, u32 flags)
  71 {
  72         int en_encap_decap = !!(flags & MLX5_FLOW_TABLE_TUNNEL_EN);
  73         u32 out[MLX5_ST_SZ_DW(create_flow_table_out)] = {0};
  74         u32 in[MLX5_ST_SZ_DW(create_flow_table_in)]   = {0};
  75         int err;
  76
  77         MLX5_SET(create_flow_table_in, in, opcode,
  78                  MLX5_CMD_OP_CREATE_FLOW_TABLE);
  79
  80         MLX5_SET(create_flow_table_in, in, table_type, type);
  81         MLX5_SET(create_flow_table_in, in, flow_table_context.level, level);
  82         MLX5_SET(create_flow_table_in, in, flow_table_context.log_size, log_size);
  83         if (vport) {
  84                 MLX5_SET(create_flow_table_in, in, vport_number, vport);
  85                 MLX5_SET(create_flow_table_in, in, other_vport, 1);
  86         }
  87
  88         MLX5_SET(create_flow_table_in, in, flow_table_context.decap_en,
  89                  en_encap_decap);
  90         MLX5_SET(create_flow_table_in, in, flow_table_context.encap_en,
  91                  en_encap_decap);
  92
  93         switch (op_mod) {
  94         case FS_FT_OP_MOD_NORMAL:
  95                 if (next_ft) {
  96                         MLX5_SET(create_flow_table_in, in,
  97                                  flow_table_context.table_miss_action, 1);
  98                         MLX5_SET(create_flow_table_in, in,
  99                                  flow_table_context.table_miss_id, next_ft->id);
 100                 }
 101                 break;
 102
 103         case FS_FT_OP_MOD_LAG_DEMUX:
 104                 MLX5_SET(create_flow_table_in, in, op_mod, 0x1);
 105                 if (next_ft)
 106                         MLX5_SET(create_flow_table_in, in,
 107                                  flow_table_context.lag_master_next_table_id,
 108                                  next_ft->id);
 109                 break;
 110         }
 111
 112         err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 113         if (!err)
 114                 *table_id = MLX5_GET(create_flow_table_out, out,
 115                                      table_id);
 116         return err;
 117 }
 118
 119 int mlx5_cmd_destroy_flow_table(struct mlx5_core_dev *dev,
 120                                 struct mlx5_flow_table *ft)
 121 {
 122         u32 in[MLX5_ST_SZ_DW(destroy_flow_table_in)]   = {0};
 123         u32 out[MLX5_ST_SZ_DW(destroy_flow_table_out)] = {0};
 124
 125         MLX5_SET(destroy_flow_table_in, in, opcode,
 126                  MLX5_CMD_OP_DESTROY_FLOW_TABLE);
 127         MLX5_SET(destroy_flow_table_in, in, table_type, ft->type);
 128         MLX5_SET(destroy_flow_table_in, in, table_id, ft->id);
 129         if (ft->vport) {
 130                 MLX5_SET(destroy_flow_table_in, in, vport_number, ft->vport);
 131                 MLX5_SET(destroy_flow_table_in, in, other_vport, 1);
 132         }
 133
 134         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 135 }
 136
 137 int mlx5_cmd_modify_flow_table(struct mlx5_core_dev *dev,
 138                                struct mlx5_flow_table *ft,
 139                                struct mlx5_flow_table *next_ft)
 140 {
 141         u32 in[MLX5_ST_SZ_DW(modify_flow_table_in)]   = {0};
 142         u32 out[MLX5_ST_SZ_DW(modify_flow_table_out)] = {0};
 143
 144         MLX5_SET(modify_flow_table_in, in, opcode,
 145                  MLX5_CMD_OP_MODIFY_FLOW_TABLE);
 146         MLX5_SET(modify_flow_table_in, in, table_type, ft->type);
 147         MLX5_SET(modify_flow_table_in, in, table_id, ft->id);
 148
 149         if (ft->op_mod == FS_FT_OP_MOD_LAG_DEMUX) {
 150                 MLX5_SET(modify_flow_table_in, in, modify_field_select,
 151                          MLX5_MODIFY_FLOW_TABLE_LAG_NEXT_TABLE_ID);
 152                 if (next_ft) {
 153                         MLX5_SET(modify_flow_table_in, in,
 154                                  flow_table_context.lag_master_next_table_id, next_ft->id);
 155                 } else {
 156                         MLX5_SET(modify_flow_table_in, in,
 157                                  flow_table_context.lag_master_next_table_id, 0);
 158                 }
 159         } else {
 160                 if (ft->vport) {
 161                         MLX5_SET(modify_flow_table_in, in, vport_number,
 162                                  ft->vport);
 163                         MLX5_SET(modify_flow_table_in, in, other_vport, 1);
 164                 }
 165                 MLX5_SET(modify_flow_table_in, in, modify_field_select,
 166                          MLX5_MODIFY_FLOW_TABLE_MISS_TABLE_ID);
 167                 if (next_ft) {
 168                         MLX5_SET(modify_flow_table_in, in,
 169                                  flow_table_context.table_miss_action, 1);
 170                         MLX5_SET(modify_flow_table_in, in,
 171                                  flow_table_context.table_miss_id,
 172                                  next_ft->id);
 173                 } else {
 174                         MLX5_SET(modify_flow_table_in, in,
 175                                  flow_table_context.table_miss_action, 0);
 176                 }
 177         }
 178
 179         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 180 }
 181
 182 int mlx5_cmd_create_flow_group(struct mlx5_core_dev *dev,
 183                                struct mlx5_flow_table *ft,
 184                                u32 *in,
 185                                unsigned int *group_id)
 186 {
 187         u32 out[MLX5_ST_SZ_DW(create_flow_group_out)] = {0};
 188         int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
 189         int err;
 190
 191         MLX5_SET(create_flow_group_in, in, opcode,
 192                  MLX5_CMD_OP_CREATE_FLOW_GROUP);
 193         MLX5_SET(create_flow_group_in, in, table_type, ft->type);
 194         MLX5_SET(create_flow_group_in, in, table_id, ft->id);
 195         if (ft->vport) {
 196                 MLX5_SET(create_flow_group_in, in, vport_number, ft->vport);
 197                 MLX5_SET(create_flow_group_in, in, other_vport, 1);
 198         }
 199
 200         err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 201         if (!err)
 202                 *group_id = MLX5_GET(create_flow_group_out, out,
 203                                      group_id);
 204         return err;
 205 }
 206
 207 int mlx5_cmd_destroy_flow_group(struct mlx5_core_dev *dev,
 208                                 struct mlx5_flow_table *ft,
 209                                 unsigned int group_id)
 210 {
 211         u32 out[MLX5_ST_SZ_DW(destroy_flow_group_out)] = {0};
 212         u32 in[MLX5_ST_SZ_DW(destroy_flow_group_in)]   = {0};
 213
 214         MLX5_SET(destroy_flow_group_in, in, opcode,
 215                  MLX5_CMD_OP_DESTROY_FLOW_GROUP);
 216         MLX5_SET(destroy_flow_group_in, in, table_type, ft->type);
 217         MLX5_SET(destroy_flow_group_in, in, table_id, ft->id);
 218         MLX5_SET(destroy_flow_group_in, in, group_id, group_id);
 219         if (ft->vport) {
 220                 MLX5_SET(destroy_flow_group_in, in, vport_number, ft->vport);
 221                 MLX5_SET(destroy_flow_group_in, in, other_vport, 1);
 222         }
 223
 224         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 225 }
 226
 227 static int mlx5_cmd_set_fte(struct mlx5_core_dev *dev,
 228                             int opmod, int modify_mask,
 229                             struct mlx5_flow_table *ft,
 230                             unsigned group_id,
 231                             struct fs_fte *fte)
 232 {
 233         unsigned int inlen = MLX5_ST_SZ_BYTES(set_fte_in) +
 234                 fte->dests_size * MLX5_ST_SZ_BYTES(dest_format_struct);
 235         u32 out[MLX5_ST_SZ_DW(set_fte_out)] = {0};
 236         struct mlx5_flow_rule *dst;
 237         void *in_flow_context;
 238         void *in_match_value;
 239         void *in_dests;
 240         u32 *in;
 241         int err;
 242
 243         in = kvzalloc(inlen, GFP_KERNEL);
 244         if (!in)
 245                 return -ENOMEM;
 246
 247         MLX5_SET(set_fte_in, in, opcode, MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY);
 248         MLX5_SET(set_fte_in, in, op_mod, opmod);
 249         MLX5_SET(set_fte_in, in, modify_enable_mask, modify_mask);
 250         MLX5_SET(set_fte_in, in, table_type, ft->type);
 251         MLX5_SET(set_fte_in, in, table_id,   ft->id);
 252         MLX5_SET(set_fte_in, in, flow_index, fte->index);
 253         if (ft->vport) {
 254                 MLX5_SET(set_fte_in, in, vport_number, ft->vport);
 255                 MLX5_SET(set_fte_in, in, other_vport, 1);
 256         }
 257
 258         in_flow_context = MLX5_ADDR_OF(set_fte_in, in, flow_context);
 259         MLX5_SET(flow_context, in_flow_context, group_id, group_id);
 260         MLX5_SET(flow_context, in_flow_context, flow_tag, fte->flow_tag);
 261         MLX5_SET(flow_context, in_flow_context, action, fte->action);
 262         MLX5_SET(flow_context, in_flow_context, encap_id, fte->encap_id);
 263         MLX5_SET(flow_context, in_flow_context, modify_header_id, fte->modify_id);
 264         in_match_value = MLX5_ADDR_OF(flow_context, in_flow_context,
 265                                       match_value);
 266         memcpy(in_match_value, &fte->val, sizeof(fte->val));
 267
 268         in_dests = MLX5_ADDR_OF(flow_context, in_flow_context, destination);
 269         if (fte->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
 270                 int list_size = 0;
 271
 272                 list_for_each_entry(dst, &fte->node.children, node.list) {
 273                         unsigned int id;
 274
 275                         if (dst->dest_attr.type == MLX5_FLOW_DESTINATION_TYPE_COUNTER)
 276                                 continue;
 277
 278                         MLX5_SET(dest_format_struct, in_dests, destination_type,
 279                                  dst->dest_attr.type);
 280                         if (dst->dest_attr.type ==
 281                             MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE) {
 282                                 id = dst->dest_attr.ft->id;
 283                         } else {
 284                                 id = dst->dest_attr.tir_num;
 285                         }
 286                         MLX5_SET(dest_format_struct, in_dests, destination_id, id);
 287                         in_dests += MLX5_ST_SZ_BYTES(dest_format_struct);
 288                         list_size++;
 289                 }
 290
 291                 MLX5_SET(flow_context, in_flow_context, destination_list_size,
 292                          list_size);
 293         }
 294
 295         if (fte->action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
 296                 int max_list_size = BIT(MLX5_CAP_FLOWTABLE_TYPE(dev,
 297                                         log_max_flow_counter,
 298                                         ft->type));
 299                 int list_size = 0;
 300
 301                 list_for_each_entry(dst, &fte->node.children, node.list) {
 302                         if (dst->dest_attr.type !=
 303                             MLX5_FLOW_DESTINATION_TYPE_COUNTER)
 304                                 continue;
 305
 306                         MLX5_SET(flow_counter_list, in_dests, flow_counter_id,
 307                                  dst->dest_attr.counter->id);
 308                         in_dests += MLX5_ST_SZ_BYTES(dest_format_struct);
 309                         list_size++;
 310                 }
 311                 if (list_size > max_list_size) {
 312                         err = -EINVAL;
 313                         goto err_out;
 314                 }
 315
 316                 MLX5_SET(flow_context, in_flow_context, flow_counter_list_size,
 317                          list_size);
 318         }
 319
 320         err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 321 err_out:
 322         kvfree(in);
 323         return err;
 324 }
 325
 326 int mlx5_cmd_create_fte(struct mlx5_core_dev *dev,
 327                         struct mlx5_flow_table *ft,
 328                         unsigned group_id,
 329                         struct fs_fte *fte)
 330 {
 331         return mlx5_cmd_set_fte(dev, 0, 0, ft, group_id, fte);
 332 }
 333
 334 int mlx5_cmd_update_fte(struct mlx5_core_dev *dev,
 335                         struct mlx5_flow_table *ft,
 336                         unsigned group_id,
 337                         int modify_mask,
 338                         struct fs_fte *fte)
 339 {
 340         int opmod;
 341         int atomic_mod_cap = MLX5_CAP_FLOWTABLE(dev,
 342                                                 flow_table_properties_nic_receive.
 343                                                 flow_modify_en);
 344         if (!atomic_mod_cap)
 345                 return -EOPNOTSUPP;
 346         opmod = 1;
 347
 348         return  mlx5_cmd_set_fte(dev, opmod, modify_mask, ft, group_id, fte);
 349 }
 350
 351 int mlx5_cmd_delete_fte(struct mlx5_core_dev *dev,
 352                         struct mlx5_flow_table *ft,
 353                         unsigned int index)
 354 {
 355         u32 out[MLX5_ST_SZ_DW(delete_fte_out)] = {0};
 356         u32 in[MLX5_ST_SZ_DW(delete_fte_in)]   = {0};
 357
 358         MLX5_SET(delete_fte_in, in, opcode, MLX5_CMD_OP_DELETE_FLOW_TABLE_ENTRY);
 359         MLX5_SET(delete_fte_in, in, table_type, ft->type);
 360         MLX5_SET(delete_fte_in, in, table_id, ft->id);
 361         MLX5_SET(delete_fte_in, in, flow_index, index);
 362         if (ft->vport) {
 363                 MLX5_SET(delete_fte_in, in, vport_number, ft->vport);
 364                 MLX5_SET(delete_fte_in, in, other_vport, 1);
 365         }
 366
 367         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 368 }
 369
 370 int mlx5_cmd_fc_alloc(struct mlx5_core_dev *dev, u32 *id)
 371 {
 372         u32 in[MLX5_ST_SZ_DW(alloc_flow_counter_in)]   = {0};
 373         u32 out[MLX5_ST_SZ_DW(alloc_flow_counter_out)] = {0};
 374         int err;
 375
 376         MLX5_SET(alloc_flow_counter_in, in, opcode,
 377                  MLX5_CMD_OP_ALLOC_FLOW_COUNTER);
 378
 379         err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 380         if (!err)
 381                 *id = MLX5_GET(alloc_flow_counter_out, out, flow_counter_id);
 382         return err;
 383 }
 384
 385 int mlx5_cmd_fc_free(struct mlx5_core_dev *dev, u32 id)
 386 {
 387         u32 in[MLX5_ST_SZ_DW(dealloc_flow_counter_in)]   = {0};
 388         u32 out[MLX5_ST_SZ_DW(dealloc_flow_counter_out)] = {0};
 389
 390         MLX5_SET(dealloc_flow_counter_in, in, opcode,
 391                  MLX5_CMD_OP_DEALLOC_FLOW_COUNTER);
 392         MLX5_SET(dealloc_flow_counter_in, in, flow_counter_id, id);
 393         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 394 }
 395
 396 int mlx5_cmd_fc_query(struct mlx5_core_dev *dev, u32 id,
 397                       u64 *packets, u64 *bytes)
 398 {
 399         u32 out[MLX5_ST_SZ_BYTES(query_flow_counter_out) +
 400                 MLX5_ST_SZ_BYTES(traffic_counter)]   = {0};
 401         u32 in[MLX5_ST_SZ_DW(query_flow_counter_in)] = {0};
 402         void *stats;
 403         int err = 0;
 404
 405         MLX5_SET(query_flow_counter_in, in, opcode,
 406                  MLX5_CMD_OP_QUERY_FLOW_COUNTER);
 407         MLX5_SET(query_flow_counter_in, in, op_mod, 0);
 408         MLX5_SET(query_flow_counter_in, in, flow_counter_id, id);
 409         err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 410         if (err)
 411                 return err;
 412
 413         stats = MLX5_ADDR_OF(query_flow_counter_out, out, flow_statistics);
 414         *packets = MLX5_GET64(traffic_counter, stats, packets);
 415         *bytes = MLX5_GET64(traffic_counter, stats, octets);
 416         return 0;
 417 }
 418
 419 struct mlx5_cmd_fc_bulk {
 420         u32 id;
 421         int num;
 422         int outlen;
 423         u32 out[0];
 424 };
 425
 426 struct mlx5_cmd_fc_bulk *
 427 mlx5_cmd_fc_bulk_alloc(struct mlx5_core_dev *dev, u32 id, int num)
 428 {
 429         struct mlx5_cmd_fc_bulk *b;
 430         int outlen =
 431                 MLX5_ST_SZ_BYTES(query_flow_counter_out) +
 432                 MLX5_ST_SZ_BYTES(traffic_counter) * num;
 433
 434         b = kzalloc(sizeof(*b) + outlen, GFP_KERNEL);
 435         if (!b)
 436                 return NULL;
 437
 438         b->id = id;
 439         b->num = num;
 440         b->outlen = outlen;
 441
 442         return b;
 443 }
 444
 445 void mlx5_cmd_fc_bulk_free(struct mlx5_cmd_fc_bulk *b)
 446 {
 447         kfree(b);
 448 }
 449
 450 int
 451 mlx5_cmd_fc_bulk_query(struct mlx5_core_dev *dev, struct mlx5_cmd_fc_bulk *b)
 452 {
 453         u32 in[MLX5_ST_SZ_DW(query_flow_counter_in)] = {0};
 454
 455         MLX5_SET(query_flow_counter_in, in, opcode,
 456                  MLX5_CMD_OP_QUERY_FLOW_COUNTER);
 457         MLX5_SET(query_flow_counter_in, in, op_mod, 0);
 458         MLX5_SET(query_flow_counter_in, in, flow_counter_id, b->id);
 459         MLX5_SET(query_flow_counter_in, in, num_of_counters, b->num);
 460         return mlx5_cmd_exec(dev, in, sizeof(in), b->out, b->outlen);
 461 }
 462
 463 void mlx5_cmd_fc_bulk_get(struct mlx5_core_dev *dev,
 464                           struct mlx5_cmd_fc_bulk *b, u32 id,
 465                           u64 *packets, u64 *bytes)
 466 {
 467         int index = id - b->id;
 468         void *stats;
 469
 470         if (index < 0 || index >= b->num) {
 471                 mlx5_core_warn(dev, "Flow counter id (0x%x) out of range (0x%x..0x%x). Counter ignored.\n",
 472                                id, b->id, b->id + b->num - 1);
 473                 return;
 474         }
 475
 476         stats = MLX5_ADDR_OF(query_flow_counter_out, b->out,
 477                              flow_statistics[index]);
 478         *packets = MLX5_GET64(traffic_counter, stats, packets);
 479         *bytes = MLX5_GET64(traffic_counter, stats, octets);
 480 }
 481
 482 int mlx5_encap_alloc(struct mlx5_core_dev *dev,
 483                      int header_type,
 484                      size_t size,
 485                      void *encap_header,
 486                      u32 *encap_id)
 487 {
 488         int max_encap_size = MLX5_CAP_ESW(dev, max_encap_header_size);
 489         u32 out[MLX5_ST_SZ_DW(alloc_encap_header_out)];
 490         void *encap_header_in;
 491         void *header;
 492         int inlen;
 493         int err;
 494         u32 *in;
 495
 496         if (size > max_encap_size) {
 497                 mlx5_core_warn(dev, "encap size %zd too big, max supported is %d\n",
 498                                size, max_encap_size);
 499                 return -EINVAL;
 500         }
 501
 502         in = kzalloc(MLX5_ST_SZ_BYTES(alloc_encap_header_in) + size,
 503                      GFP_KERNEL);
 504         if (!in)
 505                 return -ENOMEM;
 506
 507         encap_header_in = MLX5_ADDR_OF(alloc_encap_header_in, in, encap_header);
 508         header = MLX5_ADDR_OF(encap_header_in, encap_header_in, encap_header);
 509         inlen = header - (void *)in  + size;
 510
 511         memset(in, 0, inlen);
 512         MLX5_SET(alloc_encap_header_in, in, opcode,
 513                  MLX5_CMD_OP_ALLOC_ENCAP_HEADER);
 514         MLX5_SET(encap_header_in, encap_header_in, encap_header_size, size);
 515         MLX5_SET(encap_header_in, encap_header_in, header_type, header_type);
 516         memcpy(header, encap_header, size);
 517
 518         memset(out, 0, sizeof(out));
 519         err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 520
 521         *encap_id = MLX5_GET(alloc_encap_header_out, out, encap_id);
 522         kfree(in);
 523         return err;
 524 }
 525
 526 void mlx5_encap_dealloc(struct mlx5_core_dev *dev, u32 encap_id)
 527 {
 528         u32 in[MLX5_ST_SZ_DW(dealloc_encap_header_in)];
 529         u32 out[MLX5_ST_SZ_DW(dealloc_encap_header_out)];
 530
 531         memset(in, 0, sizeof(in));
 532         MLX5_SET(dealloc_encap_header_in, in, opcode,
 533                  MLX5_CMD_OP_DEALLOC_ENCAP_HEADER);
 534         MLX5_SET(dealloc_encap_header_in, in, encap_id, encap_id);
 535
 536         mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 537 }
 538
 539 int mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
 540                              u8 namespace, u8 num_actions,
 541                              void *modify_actions, u32 *modify_header_id)
 542 {
 543         u32 out[MLX5_ST_SZ_DW(alloc_modify_header_context_out)];
 544         int max_actions, actions_size, inlen, err;
 545         void *actions_in;
 546         u8 table_type;
 547         u32 *in;
 548
 549         switch (namespace) {
 550         case MLX5_FLOW_NAMESPACE_FDB:
 551                 max_actions = MLX5_CAP_ESW_FLOWTABLE_FDB(dev, max_modify_header_actions);
 552                 table_type = FS_FT_FDB;
 553                 break;
 554         case MLX5_FLOW_NAMESPACE_KERNEL:
 555                 max_actions = MLX5_CAP_FLOWTABLE_NIC_RX(dev, max_modify_header_actions);
 556                 table_type = FS_FT_NIC_RX;
 557                 break;
 558         default:
 559                 return -EOPNOTSUPP;
 560         }
 561
 562         if (num_actions > max_actions) {
 563                 mlx5_core_warn(dev, "too many modify header actions %d, max supported %d\n",
 564                                num_actions, max_actions);
 565                 return -EOPNOTSUPP;
 566         }
 567
 568         actions_size = MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto) * num_actions;
 569         inlen = MLX5_ST_SZ_BYTES(alloc_modify_header_context_in) + actions_size;
 570
 571         in = kzalloc(inlen, GFP_KERNEL);
 572         if (!in)
 573                 return -ENOMEM;
 574
 575         MLX5_SET(alloc_modify_header_context_in, in, opcode,
 576                  MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT);
 577         MLX5_SET(alloc_modify_header_context_in, in, table_type, table_type);
 578         MLX5_SET(alloc_modify_header_context_in, in, num_of_actions, num_actions);
 579
 580         actions_in = MLX5_ADDR_OF(alloc_modify_header_context_in, in, actions);
 581         memcpy(actions_in, modify_actions, actions_size);
 582
 583         memset(out, 0, sizeof(out));
 584         err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 585
 586         *modify_header_id = MLX5_GET(alloc_modify_header_context_out, out, modify_header_id);
 587         kfree(in);
 588         return err;
 589 }
 590
 591 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev, u32 modify_header_id)
 592 {
 593         u32 in[MLX5_ST_SZ_DW(dealloc_modify_header_context_in)];
 594         u32 out[MLX5_ST_SZ_DW(dealloc_modify_header_context_out)];
 595
 596         memset(in, 0, sizeof(in));
 597         MLX5_SET(dealloc_modify_header_context_in, in, opcode,
 598                  MLX5_CMD_OP_DEALLOC_MODIFY_HEADER_CONTEXT);
 599         MLX5_SET(dealloc_modify_header_context_in, in, modify_header_id,
 600                  modify_header_id);
 601
 602         mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 603 }