linux/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
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   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
  42static int mlx5_cmd_stub_update_root_ft(struct mlx5_core_dev *dev,
  43                                        struct mlx5_flow_table *ft,
  44                                        u32 underlay_qpn,
  45                                        bool disconnect)
  46{
  47        return 0;
  48}
  49
  50static int mlx5_cmd_stub_create_flow_table(struct mlx5_core_dev *dev,
  51                                           u16 vport,
  52                                           enum fs_flow_table_op_mod op_mod,
  53                                           enum fs_flow_table_type type,
  54                                           unsigned int level,
  55                                           unsigned int log_size,
  56                                           struct mlx5_flow_table *next_ft,
  57                                           unsigned int *table_id, u32 flags)
  58{
  59        return 0;
  60}
  61
  62static int mlx5_cmd_stub_destroy_flow_table(struct mlx5_core_dev *dev,
  63                                            struct mlx5_flow_table *ft)
  64{
  65        return 0;
  66}
  67
  68static int mlx5_cmd_stub_modify_flow_table(struct mlx5_core_dev *dev,
  69                                           struct mlx5_flow_table *ft,
  70                                           struct mlx5_flow_table *next_ft)
  71{
  72        return 0;
  73}
  74
  75static int mlx5_cmd_stub_create_flow_group(struct mlx5_core_dev *dev,
  76                                           struct mlx5_flow_table *ft,
  77                                           u32 *in,
  78                                           unsigned int *group_id)
  79{
  80        return 0;
  81}
  82
  83static int mlx5_cmd_stub_destroy_flow_group(struct mlx5_core_dev *dev,
  84                                            struct mlx5_flow_table *ft,
  85                                            unsigned int group_id)
  86{
  87        return 0;
  88}
  89
  90static int mlx5_cmd_stub_create_fte(struct mlx5_core_dev *dev,
  91                                    struct mlx5_flow_table *ft,
  92                                    struct mlx5_flow_group *group,
  93                                    struct fs_fte *fte)
  94{
  95        return 0;
  96}
  97
  98static int mlx5_cmd_stub_update_fte(struct mlx5_core_dev *dev,
  99                                    struct mlx5_flow_table *ft,
 100                                    unsigned int group_id,
 101                                    int modify_mask,
 102                                    struct fs_fte *fte)
 103{
 104        return -EOPNOTSUPP;
 105}
 106
 107static int mlx5_cmd_stub_delete_fte(struct mlx5_core_dev *dev,
 108                                    struct mlx5_flow_table *ft,
 109                                    struct fs_fte *fte)
 110{
 111        return 0;
 112}
 113
 114static int mlx5_cmd_update_root_ft(struct mlx5_core_dev *dev,
 115                                   struct mlx5_flow_table *ft, u32 underlay_qpn,
 116                                   bool disconnect)
 117{
 118        u32 in[MLX5_ST_SZ_DW(set_flow_table_root_in)]   = {0};
 119        u32 out[MLX5_ST_SZ_DW(set_flow_table_root_out)] = {0};
 120
 121        if ((MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_IB) &&
 122            underlay_qpn == 0)
 123                return 0;
 124
 125        MLX5_SET(set_flow_table_root_in, in, opcode,
 126                 MLX5_CMD_OP_SET_FLOW_TABLE_ROOT);
 127        MLX5_SET(set_flow_table_root_in, in, table_type, ft->type);
 128
 129        if (disconnect) {
 130                MLX5_SET(set_flow_table_root_in, in, op_mod, 1);
 131                MLX5_SET(set_flow_table_root_in, in, table_id, 0);
 132        } else {
 133                MLX5_SET(set_flow_table_root_in, in, op_mod, 0);
 134                MLX5_SET(set_flow_table_root_in, in, table_id, ft->id);
 135        }
 136
 137        MLX5_SET(set_flow_table_root_in, in, underlay_qpn, underlay_qpn);
 138        if (ft->vport) {
 139                MLX5_SET(set_flow_table_root_in, in, vport_number, ft->vport);
 140                MLX5_SET(set_flow_table_root_in, in, other_vport, 1);
 141        }
 142
 143        return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 144}
 145
 146static int mlx5_cmd_create_flow_table(struct mlx5_core_dev *dev,
 147                                      u16 vport,
 148                                      enum fs_flow_table_op_mod op_mod,
 149                                      enum fs_flow_table_type type,
 150                                      unsigned int level,
 151                                      unsigned int log_size,
 152                                      struct mlx5_flow_table *next_ft,
 153                                      unsigned int *table_id, u32 flags)
 154{
 155        int en_encap_decap = !!(flags & MLX5_FLOW_TABLE_TUNNEL_EN);
 156        u32 out[MLX5_ST_SZ_DW(create_flow_table_out)] = {0};
 157        u32 in[MLX5_ST_SZ_DW(create_flow_table_in)]   = {0};
 158        int err;
 159
 160        MLX5_SET(create_flow_table_in, in, opcode,
 161                 MLX5_CMD_OP_CREATE_FLOW_TABLE);
 162
 163        MLX5_SET(create_flow_table_in, in, table_type, type);
 164        MLX5_SET(create_flow_table_in, in, flow_table_context.level, level);
 165        MLX5_SET(create_flow_table_in, in, flow_table_context.log_size, log_size);
 166        if (vport) {
 167                MLX5_SET(create_flow_table_in, in, vport_number, vport);
 168                MLX5_SET(create_flow_table_in, in, other_vport, 1);
 169        }
 170
 171        MLX5_SET(create_flow_table_in, in, flow_table_context.decap_en,
 172                 en_encap_decap);
 173        MLX5_SET(create_flow_table_in, in, flow_table_context.encap_en,
 174                 en_encap_decap);
 175
 176        switch (op_mod) {
 177        case FS_FT_OP_MOD_NORMAL:
 178                if (next_ft) {
 179                        MLX5_SET(create_flow_table_in, in,
 180                                 flow_table_context.table_miss_action, 1);
 181                        MLX5_SET(create_flow_table_in, in,
 182                                 flow_table_context.table_miss_id, next_ft->id);
 183                }
 184                break;
 185
 186        case FS_FT_OP_MOD_LAG_DEMUX:
 187                MLX5_SET(create_flow_table_in, in, op_mod, 0x1);
 188                if (next_ft)
 189                        MLX5_SET(create_flow_table_in, in,
 190                                 flow_table_context.lag_master_next_table_id,
 191                                 next_ft->id);
 192                break;
 193        }
 194
 195        err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 196        if (!err)
 197                *table_id = MLX5_GET(create_flow_table_out, out,
 198                                     table_id);
 199        return err;
 200}
 201
 202static int mlx5_cmd_destroy_flow_table(struct mlx5_core_dev *dev,
 203                                       struct mlx5_flow_table *ft)
 204{
 205        u32 in[MLX5_ST_SZ_DW(destroy_flow_table_in)]   = {0};
 206        u32 out[MLX5_ST_SZ_DW(destroy_flow_table_out)] = {0};
 207
 208        MLX5_SET(destroy_flow_table_in, in, opcode,
 209                 MLX5_CMD_OP_DESTROY_FLOW_TABLE);
 210        MLX5_SET(destroy_flow_table_in, in, table_type, ft->type);
 211        MLX5_SET(destroy_flow_table_in, in, table_id, ft->id);
 212        if (ft->vport) {
 213                MLX5_SET(destroy_flow_table_in, in, vport_number, ft->vport);
 214                MLX5_SET(destroy_flow_table_in, in, other_vport, 1);
 215        }
 216
 217        return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 218}
 219
 220static int mlx5_cmd_modify_flow_table(struct mlx5_core_dev *dev,
 221                                      struct mlx5_flow_table *ft,
 222                                      struct mlx5_flow_table *next_ft)
 223{
 224        u32 in[MLX5_ST_SZ_DW(modify_flow_table_in)]   = {0};
 225        u32 out[MLX5_ST_SZ_DW(modify_flow_table_out)] = {0};
 226
 227        MLX5_SET(modify_flow_table_in, in, opcode,
 228                 MLX5_CMD_OP_MODIFY_FLOW_TABLE);
 229        MLX5_SET(modify_flow_table_in, in, table_type, ft->type);
 230        MLX5_SET(modify_flow_table_in, in, table_id, ft->id);
 231
 232        if (ft->op_mod == FS_FT_OP_MOD_LAG_DEMUX) {
 233                MLX5_SET(modify_flow_table_in, in, modify_field_select,
 234                         MLX5_MODIFY_FLOW_TABLE_LAG_NEXT_TABLE_ID);
 235                if (next_ft) {
 236                        MLX5_SET(modify_flow_table_in, in,
 237                                 flow_table_context.lag_master_next_table_id, next_ft->id);
 238                } else {
 239                        MLX5_SET(modify_flow_table_in, in,
 240                                 flow_table_context.lag_master_next_table_id, 0);
 241                }
 242        } else {
 243                if (ft->vport) {
 244                        MLX5_SET(modify_flow_table_in, in, vport_number,
 245                                 ft->vport);
 246                        MLX5_SET(modify_flow_table_in, in, other_vport, 1);
 247                }
 248                MLX5_SET(modify_flow_table_in, in, modify_field_select,
 249                         MLX5_MODIFY_FLOW_TABLE_MISS_TABLE_ID);
 250                if (next_ft) {
 251                        MLX5_SET(modify_flow_table_in, in,
 252                                 flow_table_context.table_miss_action, 1);
 253                        MLX5_SET(modify_flow_table_in, in,
 254                                 flow_table_context.table_miss_id,
 255                                 next_ft->id);
 256                } else {
 257                        MLX5_SET(modify_flow_table_in, in,
 258                                 flow_table_context.table_miss_action, 0);
 259                }
 260        }
 261
 262        return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 263}
 264
 265static int mlx5_cmd_create_flow_group(struct mlx5_core_dev *dev,
 266                                      struct mlx5_flow_table *ft,
 267                                      u32 *in,
 268                                      unsigned int *group_id)
 269{
 270        u32 out[MLX5_ST_SZ_DW(create_flow_group_out)] = {0};
 271        int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
 272        int err;
 273
 274        MLX5_SET(create_flow_group_in, in, opcode,
 275                 MLX5_CMD_OP_CREATE_FLOW_GROUP);
 276        MLX5_SET(create_flow_group_in, in, table_type, ft->type);
 277        MLX5_SET(create_flow_group_in, in, table_id, ft->id);
 278        if (ft->vport) {
 279                MLX5_SET(create_flow_group_in, in, vport_number, ft->vport);
 280                MLX5_SET(create_flow_group_in, in, other_vport, 1);
 281        }
 282
 283        err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 284        if (!err)
 285                *group_id = MLX5_GET(create_flow_group_out, out,
 286                                     group_id);
 287        return err;
 288}
 289
 290static int mlx5_cmd_destroy_flow_group(struct mlx5_core_dev *dev,
 291                                       struct mlx5_flow_table *ft,
 292                                       unsigned int group_id)
 293{
 294        u32 out[MLX5_ST_SZ_DW(destroy_flow_group_out)] = {0};
 295        u32 in[MLX5_ST_SZ_DW(destroy_flow_group_in)]   = {0};
 296
 297        MLX5_SET(destroy_flow_group_in, in, opcode,
 298                 MLX5_CMD_OP_DESTROY_FLOW_GROUP);
 299        MLX5_SET(destroy_flow_group_in, in, table_type, ft->type);
 300        MLX5_SET(destroy_flow_group_in, in, table_id, ft->id);
 301        MLX5_SET(destroy_flow_group_in, in, group_id, group_id);
 302        if (ft->vport) {
 303                MLX5_SET(destroy_flow_group_in, in, vport_number, ft->vport);
 304                MLX5_SET(destroy_flow_group_in, in, other_vport, 1);
 305        }
 306
 307        return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 308}
 309
 310static int mlx5_cmd_set_fte(struct mlx5_core_dev *dev,
 311                            int opmod, int modify_mask,
 312                            struct mlx5_flow_table *ft,
 313                            unsigned group_id,
 314                            struct fs_fte *fte)
 315{
 316        unsigned int inlen = MLX5_ST_SZ_BYTES(set_fte_in) +
 317                fte->dests_size * MLX5_ST_SZ_BYTES(dest_format_struct);
 318        u32 out[MLX5_ST_SZ_DW(set_fte_out)] = {0};
 319        struct mlx5_flow_rule *dst;
 320        void *in_flow_context, *vlan;
 321        void *in_match_value;
 322        void *in_dests;
 323        u32 *in;
 324        int err;
 325
 326        in = kvzalloc(inlen, GFP_KERNEL);
 327        if (!in)
 328                return -ENOMEM;
 329
 330        MLX5_SET(set_fte_in, in, opcode, MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY);
 331        MLX5_SET(set_fte_in, in, op_mod, opmod);
 332        MLX5_SET(set_fte_in, in, modify_enable_mask, modify_mask);
 333        MLX5_SET(set_fte_in, in, table_type, ft->type);
 334        MLX5_SET(set_fte_in, in, table_id,   ft->id);
 335        MLX5_SET(set_fte_in, in, flow_index, fte->index);
 336        if (ft->vport) {
 337                MLX5_SET(set_fte_in, in, vport_number, ft->vport);
 338                MLX5_SET(set_fte_in, in, other_vport, 1);
 339        }
 340
 341        in_flow_context = MLX5_ADDR_OF(set_fte_in, in, flow_context);
 342        MLX5_SET(flow_context, in_flow_context, group_id, group_id);
 343
 344        MLX5_SET(flow_context, in_flow_context, flow_tag, fte->action.flow_tag);
 345        MLX5_SET(flow_context, in_flow_context, action, fte->action.action);
 346        MLX5_SET(flow_context, in_flow_context, encap_id, fte->action.encap_id);
 347        MLX5_SET(flow_context, in_flow_context, modify_header_id,
 348                 fte->action.modify_id);
 349
 350        vlan = MLX5_ADDR_OF(flow_context, in_flow_context, push_vlan);
 351
 352        MLX5_SET(vlan, vlan, ethtype, fte->action.vlan.ethtype);
 353        MLX5_SET(vlan, vlan, vid, fte->action.vlan.vid);
 354        MLX5_SET(vlan, vlan, prio, fte->action.vlan.prio);
 355
 356        in_match_value = MLX5_ADDR_OF(flow_context, in_flow_context,
 357                                      match_value);
 358        memcpy(in_match_value, &fte->val, sizeof(fte->val));
 359
 360        in_dests = MLX5_ADDR_OF(flow_context, in_flow_context, destination);
 361        if (fte->action.action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
 362                int list_size = 0;
 363
 364                list_for_each_entry(dst, &fte->node.children, node.list) {
 365                        unsigned int id;
 366
 367                        if (dst->dest_attr.type == MLX5_FLOW_DESTINATION_TYPE_COUNTER)
 368                                continue;
 369
 370                        MLX5_SET(dest_format_struct, in_dests, destination_type,
 371                                 dst->dest_attr.type);
 372                        if (dst->dest_attr.type ==
 373                            MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE) {
 374                                id = dst->dest_attr.ft->id;
 375                        } else {
 376                                id = dst->dest_attr.tir_num;
 377                        }
 378                        MLX5_SET(dest_format_struct, in_dests, destination_id, id);
 379                        in_dests += MLX5_ST_SZ_BYTES(dest_format_struct);
 380                        list_size++;
 381                }
 382
 383                MLX5_SET(flow_context, in_flow_context, destination_list_size,
 384                         list_size);
 385        }
 386
 387        if (fte->action.action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
 388                int max_list_size = BIT(MLX5_CAP_FLOWTABLE_TYPE(dev,
 389                                        log_max_flow_counter,
 390                                        ft->type));
 391                int list_size = 0;
 392
 393                list_for_each_entry(dst, &fte->node.children, node.list) {
 394                        if (dst->dest_attr.type !=
 395                            MLX5_FLOW_DESTINATION_TYPE_COUNTER)
 396                                continue;
 397
 398                        MLX5_SET(flow_counter_list, in_dests, flow_counter_id,
 399                                 dst->dest_attr.counter->id);
 400                        in_dests += MLX5_ST_SZ_BYTES(dest_format_struct);
 401                        list_size++;
 402                }
 403                if (list_size > max_list_size) {
 404                        err = -EINVAL;
 405                        goto err_out;
 406                }
 407
 408                MLX5_SET(flow_context, in_flow_context, flow_counter_list_size,
 409                         list_size);
 410        }
 411
 412        err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 413err_out:
 414        kvfree(in);
 415        return err;
 416}
 417
 418static int mlx5_cmd_create_fte(struct mlx5_core_dev *dev,
 419                               struct mlx5_flow_table *ft,
 420                               struct mlx5_flow_group *group,
 421                               struct fs_fte *fte)
 422{
 423        unsigned int group_id = group->id;
 424
 425        return mlx5_cmd_set_fte(dev, 0, 0, ft, group_id, fte);
 426}
 427
 428static int mlx5_cmd_update_fte(struct mlx5_core_dev *dev,
 429                               struct mlx5_flow_table *ft,
 430                               unsigned int group_id,
 431                               int modify_mask,
 432                               struct fs_fte *fte)
 433{
 434        int opmod;
 435        int atomic_mod_cap = MLX5_CAP_FLOWTABLE(dev,
 436                                                flow_table_properties_nic_receive.
 437                                                flow_modify_en);
 438        if (!atomic_mod_cap)
 439                return -EOPNOTSUPP;
 440        opmod = 1;
 441
 442        return  mlx5_cmd_set_fte(dev, opmod, modify_mask, ft, group_id, fte);
 443}
 444
 445static int mlx5_cmd_delete_fte(struct mlx5_core_dev *dev,
 446                               struct mlx5_flow_table *ft,
 447                               struct fs_fte *fte)
 448{
 449        u32 out[MLX5_ST_SZ_DW(delete_fte_out)] = {0};
 450        u32 in[MLX5_ST_SZ_DW(delete_fte_in)]   = {0};
 451
 452        MLX5_SET(delete_fte_in, in, opcode, MLX5_CMD_OP_DELETE_FLOW_TABLE_ENTRY);
 453        MLX5_SET(delete_fte_in, in, table_type, ft->type);
 454        MLX5_SET(delete_fte_in, in, table_id, ft->id);
 455        MLX5_SET(delete_fte_in, in, flow_index, fte->index);
 456        if (ft->vport) {
 457                MLX5_SET(delete_fte_in, in, vport_number, ft->vport);
 458                MLX5_SET(delete_fte_in, in, other_vport, 1);
 459        }
 460
 461        return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 462}
 463
 464int mlx5_cmd_fc_alloc(struct mlx5_core_dev *dev, u32 *id)
 465{
 466        u32 in[MLX5_ST_SZ_DW(alloc_flow_counter_in)]   = {0};
 467        u32 out[MLX5_ST_SZ_DW(alloc_flow_counter_out)] = {0};
 468        int err;
 469
 470        MLX5_SET(alloc_flow_counter_in, in, opcode,
 471                 MLX5_CMD_OP_ALLOC_FLOW_COUNTER);
 472
 473        err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 474        if (!err)
 475                *id = MLX5_GET(alloc_flow_counter_out, out, flow_counter_id);
 476        return err;
 477}
 478
 479int mlx5_cmd_fc_free(struct mlx5_core_dev *dev, u32 id)
 480{
 481        u32 in[MLX5_ST_SZ_DW(dealloc_flow_counter_in)]   = {0};
 482        u32 out[MLX5_ST_SZ_DW(dealloc_flow_counter_out)] = {0};
 483
 484        MLX5_SET(dealloc_flow_counter_in, in, opcode,
 485                 MLX5_CMD_OP_DEALLOC_FLOW_COUNTER);
 486        MLX5_SET(dealloc_flow_counter_in, in, flow_counter_id, id);
 487        return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 488}
 489
 490int mlx5_cmd_fc_query(struct mlx5_core_dev *dev, u32 id,
 491                      u64 *packets, u64 *bytes)
 492{
 493        u32 out[MLX5_ST_SZ_BYTES(query_flow_counter_out) +
 494                MLX5_ST_SZ_BYTES(traffic_counter)]   = {0};
 495        u32 in[MLX5_ST_SZ_DW(query_flow_counter_in)] = {0};
 496        void *stats;
 497        int err = 0;
 498
 499        MLX5_SET(query_flow_counter_in, in, opcode,
 500                 MLX5_CMD_OP_QUERY_FLOW_COUNTER);
 501        MLX5_SET(query_flow_counter_in, in, op_mod, 0);
 502        MLX5_SET(query_flow_counter_in, in, flow_counter_id, id);
 503        err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 504        if (err)
 505                return err;
 506
 507        stats = MLX5_ADDR_OF(query_flow_counter_out, out, flow_statistics);
 508        *packets = MLX5_GET64(traffic_counter, stats, packets);
 509        *bytes = MLX5_GET64(traffic_counter, stats, octets);
 510        return 0;
 511}
 512
 513struct mlx5_cmd_fc_bulk {
 514        u32 id;
 515        int num;
 516        int outlen;
 517        u32 out[0];
 518};
 519
 520struct mlx5_cmd_fc_bulk *
 521mlx5_cmd_fc_bulk_alloc(struct mlx5_core_dev *dev, u32 id, int num)
 522{
 523        struct mlx5_cmd_fc_bulk *b;
 524        int outlen =
 525                MLX5_ST_SZ_BYTES(query_flow_counter_out) +
 526                MLX5_ST_SZ_BYTES(traffic_counter) * num;
 527
 528        b = kzalloc(sizeof(*b) + outlen, GFP_KERNEL);
 529        if (!b)
 530                return NULL;
 531
 532        b->id = id;
 533        b->num = num;
 534        b->outlen = outlen;
 535
 536        return b;
 537}
 538
 539void mlx5_cmd_fc_bulk_free(struct mlx5_cmd_fc_bulk *b)
 540{
 541        kfree(b);
 542}
 543
 544int
 545mlx5_cmd_fc_bulk_query(struct mlx5_core_dev *dev, struct mlx5_cmd_fc_bulk *b)
 546{
 547        u32 in[MLX5_ST_SZ_DW(query_flow_counter_in)] = {0};
 548
 549        MLX5_SET(query_flow_counter_in, in, opcode,
 550                 MLX5_CMD_OP_QUERY_FLOW_COUNTER);
 551        MLX5_SET(query_flow_counter_in, in, op_mod, 0);
 552        MLX5_SET(query_flow_counter_in, in, flow_counter_id, b->id);
 553        MLX5_SET(query_flow_counter_in, in, num_of_counters, b->num);
 554        return mlx5_cmd_exec(dev, in, sizeof(in), b->out, b->outlen);
 555}
 556
 557void mlx5_cmd_fc_bulk_get(struct mlx5_core_dev *dev,
 558                          struct mlx5_cmd_fc_bulk *b, u32 id,
 559                          u64 *packets, u64 *bytes)
 560{
 561        int index = id - b->id;
 562        void *stats;
 563
 564        if (index < 0 || index >= b->num) {
 565                mlx5_core_warn(dev, "Flow counter id (0x%x) out of range (0x%x..0x%x). Counter ignored.\n",
 566                               id, b->id, b->id + b->num - 1);
 567                return;
 568        }
 569
 570        stats = MLX5_ADDR_OF(query_flow_counter_out, b->out,
 571                             flow_statistics[index]);
 572        *packets = MLX5_GET64(traffic_counter, stats, packets);
 573        *bytes = MLX5_GET64(traffic_counter, stats, octets);
 574}
 575
 576int mlx5_encap_alloc(struct mlx5_core_dev *dev,
 577                     int header_type,
 578                     size_t size,
 579                     void *encap_header,
 580                     u32 *encap_id)
 581{
 582        int max_encap_size = MLX5_CAP_ESW(dev, max_encap_header_size);
 583        u32 out[MLX5_ST_SZ_DW(alloc_encap_header_out)];
 584        void *encap_header_in;
 585        void *header;
 586        int inlen;
 587        int err;
 588        u32 *in;
 589
 590        if (size > max_encap_size) {
 591                mlx5_core_warn(dev, "encap size %zd too big, max supported is %d\n",
 592                               size, max_encap_size);
 593                return -EINVAL;
 594        }
 595
 596        in = kzalloc(MLX5_ST_SZ_BYTES(alloc_encap_header_in) + size,
 597                     GFP_KERNEL);
 598        if (!in)
 599                return -ENOMEM;
 600
 601        encap_header_in = MLX5_ADDR_OF(alloc_encap_header_in, in, encap_header);
 602        header = MLX5_ADDR_OF(encap_header_in, encap_header_in, encap_header);
 603        inlen = header - (void *)in  + size;
 604
 605        memset(in, 0, inlen);
 606        MLX5_SET(alloc_encap_header_in, in, opcode,
 607                 MLX5_CMD_OP_ALLOC_ENCAP_HEADER);
 608        MLX5_SET(encap_header_in, encap_header_in, encap_header_size, size);
 609        MLX5_SET(encap_header_in, encap_header_in, header_type, header_type);
 610        memcpy(header, encap_header, size);
 611
 612        memset(out, 0, sizeof(out));
 613        err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 614
 615        *encap_id = MLX5_GET(alloc_encap_header_out, out, encap_id);
 616        kfree(in);
 617        return err;
 618}
 619
 620void mlx5_encap_dealloc(struct mlx5_core_dev *dev, u32 encap_id)
 621{
 622        u32 in[MLX5_ST_SZ_DW(dealloc_encap_header_in)];
 623        u32 out[MLX5_ST_SZ_DW(dealloc_encap_header_out)];
 624
 625        memset(in, 0, sizeof(in));
 626        MLX5_SET(dealloc_encap_header_in, in, opcode,
 627                 MLX5_CMD_OP_DEALLOC_ENCAP_HEADER);
 628        MLX5_SET(dealloc_encap_header_in, in, encap_id, encap_id);
 629
 630        mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 631}
 632
 633int mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
 634                             u8 namespace, u8 num_actions,
 635                             void *modify_actions, u32 *modify_header_id)
 636{
 637        u32 out[MLX5_ST_SZ_DW(alloc_modify_header_context_out)];
 638        int max_actions, actions_size, inlen, err;
 639        void *actions_in;
 640        u8 table_type;
 641        u32 *in;
 642
 643        switch (namespace) {
 644        case MLX5_FLOW_NAMESPACE_FDB:
 645                max_actions = MLX5_CAP_ESW_FLOWTABLE_FDB(dev, max_modify_header_actions);
 646                table_type = FS_FT_FDB;
 647                break;
 648        case MLX5_FLOW_NAMESPACE_KERNEL:
 649                max_actions = MLX5_CAP_FLOWTABLE_NIC_RX(dev, max_modify_header_actions);
 650                table_type = FS_FT_NIC_RX;
 651                break;
 652        default:
 653                return -EOPNOTSUPP;
 654        }
 655
 656        if (num_actions > max_actions) {
 657                mlx5_core_warn(dev, "too many modify header actions %d, max supported %d\n",
 658                               num_actions, max_actions);
 659                return -EOPNOTSUPP;
 660        }
 661
 662        actions_size = MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto) * num_actions;
 663        inlen = MLX5_ST_SZ_BYTES(alloc_modify_header_context_in) + actions_size;
 664
 665        in = kzalloc(inlen, GFP_KERNEL);
 666        if (!in)
 667                return -ENOMEM;
 668
 669        MLX5_SET(alloc_modify_header_context_in, in, opcode,
 670                 MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT);
 671        MLX5_SET(alloc_modify_header_context_in, in, table_type, table_type);
 672        MLX5_SET(alloc_modify_header_context_in, in, num_of_actions, num_actions);
 673
 674        actions_in = MLX5_ADDR_OF(alloc_modify_header_context_in, in, actions);
 675        memcpy(actions_in, modify_actions, actions_size);
 676
 677        memset(out, 0, sizeof(out));
 678        err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 679
 680        *modify_header_id = MLX5_GET(alloc_modify_header_context_out, out, modify_header_id);
 681        kfree(in);
 682        return err;
 683}
 684
 685void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev, u32 modify_header_id)
 686{
 687        u32 in[MLX5_ST_SZ_DW(dealloc_modify_header_context_in)];
 688        u32 out[MLX5_ST_SZ_DW(dealloc_modify_header_context_out)];
 689
 690        memset(in, 0, sizeof(in));
 691        MLX5_SET(dealloc_modify_header_context_in, in, opcode,
 692                 MLX5_CMD_OP_DEALLOC_MODIFY_HEADER_CONTEXT);
 693        MLX5_SET(dealloc_modify_header_context_in, in, modify_header_id,
 694                 modify_header_id);
 695
 696        mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 697}
 698
 699static const struct mlx5_flow_cmds mlx5_flow_cmds = {
 700        .create_flow_table = mlx5_cmd_create_flow_table,
 701        .destroy_flow_table = mlx5_cmd_destroy_flow_table,
 702        .modify_flow_table = mlx5_cmd_modify_flow_table,
 703        .create_flow_group = mlx5_cmd_create_flow_group,
 704        .destroy_flow_group = mlx5_cmd_destroy_flow_group,
 705        .create_fte = mlx5_cmd_create_fte,
 706        .update_fte = mlx5_cmd_update_fte,
 707        .delete_fte = mlx5_cmd_delete_fte,
 708        .update_root_ft = mlx5_cmd_update_root_ft,
 709};
 710
 711static const struct mlx5_flow_cmds mlx5_flow_cmd_stubs = {
 712        .create_flow_table = mlx5_cmd_stub_create_flow_table,
 713        .destroy_flow_table = mlx5_cmd_stub_destroy_flow_table,
 714        .modify_flow_table = mlx5_cmd_stub_modify_flow_table,
 715        .create_flow_group = mlx5_cmd_stub_create_flow_group,
 716        .destroy_flow_group = mlx5_cmd_stub_destroy_flow_group,
 717        .create_fte = mlx5_cmd_stub_create_fte,
 718        .update_fte = mlx5_cmd_stub_update_fte,
 719        .delete_fte = mlx5_cmd_stub_delete_fte,
 720        .update_root_ft = mlx5_cmd_stub_update_root_ft,
 721};
 722
 723static const struct mlx5_flow_cmds *mlx5_fs_cmd_get_fw_cmds(void)
 724{
 725        return &mlx5_flow_cmds;
 726}
 727
 728static const struct mlx5_flow_cmds *mlx5_fs_cmd_get_stub_cmds(void)
 729{
 730        return &mlx5_flow_cmd_stubs;
 731}
 732
 733const struct mlx5_flow_cmds *mlx5_fs_cmd_get_default(enum fs_flow_table_type type)
 734{
 735        switch (type) {
 736        case FS_FT_NIC_RX:
 737        case FS_FT_ESW_EGRESS_ACL:
 738        case FS_FT_ESW_INGRESS_ACL:
 739        case FS_FT_FDB:
 740        case FS_FT_SNIFFER_RX:
 741        case FS_FT_SNIFFER_TX:
 742                return mlx5_fs_cmd_get_fw_cmds();
 743        case FS_FT_NIC_TX:
 744        default:
 745                return mlx5_fs_cmd_get_stub_cmds();
 746        }
 747}
 748