linux/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
<<
>>
Prefs
   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
  42int 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
  65int 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
 119int 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
 137int 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
 182int 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
 207int 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
 227static 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));
 321err_out:
 322        kvfree(in);
 323        return err;
 324}
 325
 326int 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
 334int 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
 351int 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
 370int 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
 385int 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
 396int 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
 419struct mlx5_cmd_fc_bulk {
 420        u32 id;
 421        int num;
 422        int outlen;
 423        u32 out[0];
 424};
 425
 426struct mlx5_cmd_fc_bulk *
 427mlx5_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
 445void mlx5_cmd_fc_bulk_free(struct mlx5_cmd_fc_bulk *b)
 446{
 447        kfree(b);
 448}
 449
 450int
 451mlx5_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
 463void 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
 482int 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
 526void 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
 539int 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
 591void 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}
 604