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_core_dev *dev,
  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_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
  62 static int mlx5_cmd_stub_destroy_flow_table(struct mlx5_core_dev *dev,
  63                                             struct mlx5_flow_table *ft)
  64 {
  65         return 0;
  66 }
  67
  68 static 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
  75 static 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
  83 static 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
  90 static 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
  98 static 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
 107 static 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
 114 static 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
 146 static 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 = !!(flags & MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT);
 156         int en_decap = !!(flags & MLX5_FLOW_TABLE_TUNNEL_EN_DECAP);
 157         u32 out[MLX5_ST_SZ_DW(create_flow_table_out)] = {0};
 158         u32 in[MLX5_ST_SZ_DW(create_flow_table_in)]   = {0};
 159         int err;
 160
 161         MLX5_SET(create_flow_table_in, in, opcode,
 162                  MLX5_CMD_OP_CREATE_FLOW_TABLE);
 163
 164         MLX5_SET(create_flow_table_in, in, table_type, type);
 165         MLX5_SET(create_flow_table_in, in, flow_table_context.level, level);
 166         MLX5_SET(create_flow_table_in, in, flow_table_context.log_size, log_size);
 167         if (vport) {
 168                 MLX5_SET(create_flow_table_in, in, vport_number, vport);
 169                 MLX5_SET(create_flow_table_in, in, other_vport, 1);
 170         }
 171
 172         MLX5_SET(create_flow_table_in, in, flow_table_context.decap_en,
 173                  en_decap);
 174         MLX5_SET(create_flow_table_in, in, flow_table_context.reformat_en,
 175                  en_encap);
 176
 177         switch (op_mod) {
 178         case FS_FT_OP_MOD_NORMAL:
 179                 if (next_ft) {
 180                         MLX5_SET(create_flow_table_in, in,
 181                                  flow_table_context.table_miss_action, 1);
 182                         MLX5_SET(create_flow_table_in, in,
 183                                  flow_table_context.table_miss_id, next_ft->id);
 184                 }
 185                 break;
 186
 187         case FS_FT_OP_MOD_LAG_DEMUX:
 188                 MLX5_SET(create_flow_table_in, in, op_mod, 0x1);
 189                 if (next_ft)
 190                         MLX5_SET(create_flow_table_in, in,
 191                                  flow_table_context.lag_master_next_table_id,
 192                                  next_ft->id);
 193                 break;
 194         }
 195
 196         err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 197         if (!err)
 198                 *table_id = MLX5_GET(create_flow_table_out, out,
 199                                      table_id);
 200         return err;
 201 }
 202
 203 static int mlx5_cmd_destroy_flow_table(struct mlx5_core_dev *dev,
 204                                        struct mlx5_flow_table *ft)
 205 {
 206         u32 in[MLX5_ST_SZ_DW(destroy_flow_table_in)]   = {0};
 207         u32 out[MLX5_ST_SZ_DW(destroy_flow_table_out)] = {0};
 208
 209         MLX5_SET(destroy_flow_table_in, in, opcode,
 210                  MLX5_CMD_OP_DESTROY_FLOW_TABLE);
 211         MLX5_SET(destroy_flow_table_in, in, table_type, ft->type);
 212         MLX5_SET(destroy_flow_table_in, in, table_id, ft->id);
 213         if (ft->vport) {
 214                 MLX5_SET(destroy_flow_table_in, in, vport_number, ft->vport);
 215                 MLX5_SET(destroy_flow_table_in, in, other_vport, 1);
 216         }
 217
 218         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 219 }
 220
 221 static int mlx5_cmd_modify_flow_table(struct mlx5_core_dev *dev,
 222                                       struct mlx5_flow_table *ft,
 223                                       struct mlx5_flow_table *next_ft)
 224 {
 225         u32 in[MLX5_ST_SZ_DW(modify_flow_table_in)]   = {0};
 226         u32 out[MLX5_ST_SZ_DW(modify_flow_table_out)] = {0};
 227
 228         MLX5_SET(modify_flow_table_in, in, opcode,
 229                  MLX5_CMD_OP_MODIFY_FLOW_TABLE);
 230         MLX5_SET(modify_flow_table_in, in, table_type, ft->type);
 231         MLX5_SET(modify_flow_table_in, in, table_id, ft->id);
 232
 233         if (ft->op_mod == FS_FT_OP_MOD_LAG_DEMUX) {
 234                 MLX5_SET(modify_flow_table_in, in, modify_field_select,
 235                          MLX5_MODIFY_FLOW_TABLE_LAG_NEXT_TABLE_ID);
 236                 if (next_ft) {
 237                         MLX5_SET(modify_flow_table_in, in,
 238                                  flow_table_context.lag_master_next_table_id, next_ft->id);
 239                 } else {
 240                         MLX5_SET(modify_flow_table_in, in,
 241                                  flow_table_context.lag_master_next_table_id, 0);
 242                 }
 243         } else {
 244                 if (ft->vport) {
 245                         MLX5_SET(modify_flow_table_in, in, vport_number,
 246                                  ft->vport);
 247                         MLX5_SET(modify_flow_table_in, in, other_vport, 1);
 248                 }
 249                 MLX5_SET(modify_flow_table_in, in, modify_field_select,
 250                          MLX5_MODIFY_FLOW_TABLE_MISS_TABLE_ID);
 251                 if (next_ft) {
 252                         MLX5_SET(modify_flow_table_in, in,
 253                                  flow_table_context.table_miss_action, 1);
 254                         MLX5_SET(modify_flow_table_in, in,
 255                                  flow_table_context.table_miss_id,
 256                                  next_ft->id);
 257                 } else {
 258                         MLX5_SET(modify_flow_table_in, in,
 259                                  flow_table_context.table_miss_action, 0);
 260                 }
 261         }
 262
 263         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 264 }
 265
 266 static int mlx5_cmd_create_flow_group(struct mlx5_core_dev *dev,
 267                                       struct mlx5_flow_table *ft,
 268                                       u32 *in,
 269                                       unsigned int *group_id)
 270 {
 271         u32 out[MLX5_ST_SZ_DW(create_flow_group_out)] = {0};
 272         int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
 273         int err;
 274
 275         MLX5_SET(create_flow_group_in, in, opcode,
 276                  MLX5_CMD_OP_CREATE_FLOW_GROUP);
 277         MLX5_SET(create_flow_group_in, in, table_type, ft->type);
 278         MLX5_SET(create_flow_group_in, in, table_id, ft->id);
 279         if (ft->vport) {
 280                 MLX5_SET(create_flow_group_in, in, vport_number, ft->vport);
 281                 MLX5_SET(create_flow_group_in, in, other_vport, 1);
 282         }
 283
 284         err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 285         if (!err)
 286                 *group_id = MLX5_GET(create_flow_group_out, out,
 287                                      group_id);
 288         return err;
 289 }
 290
 291 static int mlx5_cmd_destroy_flow_group(struct mlx5_core_dev *dev,
 292                                        struct mlx5_flow_table *ft,
 293                                        unsigned int group_id)
 294 {
 295         u32 out[MLX5_ST_SZ_DW(destroy_flow_group_out)] = {0};
 296         u32 in[MLX5_ST_SZ_DW(destroy_flow_group_in)]   = {0};
 297
 298         MLX5_SET(destroy_flow_group_in, in, opcode,
 299                  MLX5_CMD_OP_DESTROY_FLOW_GROUP);
 300         MLX5_SET(destroy_flow_group_in, in, table_type, ft->type);
 301         MLX5_SET(destroy_flow_group_in, in, table_id, ft->id);
 302         MLX5_SET(destroy_flow_group_in, in, group_id, group_id);
 303         if (ft->vport) {
 304                 MLX5_SET(destroy_flow_group_in, in, vport_number, ft->vport);
 305                 MLX5_SET(destroy_flow_group_in, in, other_vport, 1);
 306         }
 307
 308         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 309 }
 310
 311 static int mlx5_set_extended_dest(struct mlx5_core_dev *dev,
 312                                   struct fs_fte *fte, bool *extended_dest)
 313 {
 314         int fw_log_max_fdb_encap_uplink =
 315                 MLX5_CAP_ESW(dev, log_max_fdb_encap_uplink);
 316         int num_fwd_destinations = 0;
 317         struct mlx5_flow_rule *dst;
 318         int num_encap = 0;
 319
 320         *extended_dest = false;
 321         if (!(fte->action.action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST))
 322                 return 0;
 323
 324         list_for_each_entry(dst, &fte->node.children, node.list) {
 325                 if (dst->dest_attr.type == MLX5_FLOW_DESTINATION_TYPE_COUNTER)
 326                         continue;
 327                 if (dst->dest_attr.type == MLX5_FLOW_DESTINATION_TYPE_VPORT &&
 328                     dst->dest_attr.vport.flags & MLX5_FLOW_DEST_VPORT_REFORMAT_ID)
 329                         num_encap++;
 330                 num_fwd_destinations++;
 331         }
 332         if (num_fwd_destinations > 1 && num_encap > 0)
 333                 *extended_dest = true;
 334
 335         if (*extended_dest && !fw_log_max_fdb_encap_uplink) {
 336                 mlx5_core_warn(dev, "FW does not support extended destination");
 337                 return -EOPNOTSUPP;
 338         }
 339         if (num_encap > (1 << fw_log_max_fdb_encap_uplink)) {
 340                 mlx5_core_warn(dev, "FW does not support more than %d encaps",
 341                                1 << fw_log_max_fdb_encap_uplink);
 342                 return -EOPNOTSUPP;
 343         }
 344
 345         return 0;
 346 }
 347 static int mlx5_cmd_set_fte(struct mlx5_core_dev *dev,
 348                             int opmod, int modify_mask,
 349                             struct mlx5_flow_table *ft,
 350                             unsigned group_id,
 351                             struct fs_fte *fte)
 352 {
 353         u32 out[MLX5_ST_SZ_DW(set_fte_out)] = {0};
 354         bool extended_dest = false;
 355         struct mlx5_flow_rule *dst;
 356         void *in_flow_context, *vlan;
 357         void *in_match_value;
 358         unsigned int inlen;
 359         int dst_cnt_size;
 360         void *in_dests;
 361         u32 *in;
 362         int err;
 363
 364         if (mlx5_set_extended_dest(dev, fte, &extended_dest))
 365                 return -EOPNOTSUPP;
 366
 367         if (!extended_dest)
 368                 dst_cnt_size = MLX5_ST_SZ_BYTES(dest_format_struct);
 369         else
 370                 dst_cnt_size = MLX5_ST_SZ_BYTES(extended_dest_format);
 371
 372         inlen = MLX5_ST_SZ_BYTES(set_fte_in) + fte->dests_size * dst_cnt_size;
 373         in = kvzalloc(inlen, GFP_KERNEL);
 374         if (!in)
 375                 return -ENOMEM;
 376
 377         MLX5_SET(set_fte_in, in, opcode, MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY);
 378         MLX5_SET(set_fte_in, in, op_mod, opmod);
 379         MLX5_SET(set_fte_in, in, modify_enable_mask, modify_mask);
 380         MLX5_SET(set_fte_in, in, table_type, ft->type);
 381         MLX5_SET(set_fte_in, in, table_id,   ft->id);
 382         MLX5_SET(set_fte_in, in, flow_index, fte->index);
 383         if (ft->vport) {
 384                 MLX5_SET(set_fte_in, in, vport_number, ft->vport);
 385                 MLX5_SET(set_fte_in, in, other_vport, 1);
 386         }
 387
 388         in_flow_context = MLX5_ADDR_OF(set_fte_in, in, flow_context);
 389         MLX5_SET(flow_context, in_flow_context, group_id, group_id);
 390
 391         MLX5_SET(flow_context, in_flow_context, flow_tag, fte->action.flow_tag);
 392         MLX5_SET(flow_context, in_flow_context, extended_destination,
 393                  extended_dest);
 394         if (extended_dest) {
 395                 u32 action;
 396
 397                 action = fte->action.action &
 398                         ~MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT;
 399                 MLX5_SET(flow_context, in_flow_context, action, action);
 400         } else {
 401                 MLX5_SET(flow_context, in_flow_context, action,
 402                          fte->action.action);
 403                 MLX5_SET(flow_context, in_flow_context, packet_reformat_id,
 404                          fte->action.reformat_id);
 405         }
 406         MLX5_SET(flow_context, in_flow_context, modify_header_id,
 407                  fte->action.modify_id);
 408
 409         vlan = MLX5_ADDR_OF(flow_context, in_flow_context, push_vlan);
 410
 411         MLX5_SET(vlan, vlan, ethtype, fte->action.vlan[0].ethtype);
 412         MLX5_SET(vlan, vlan, vid, fte->action.vlan[0].vid);
 413         MLX5_SET(vlan, vlan, prio, fte->action.vlan[0].prio);
 414
 415         vlan = MLX5_ADDR_OF(flow_context, in_flow_context, push_vlan_2);
 416
 417         MLX5_SET(vlan, vlan, ethtype, fte->action.vlan[1].ethtype);
 418         MLX5_SET(vlan, vlan, vid, fte->action.vlan[1].vid);
 419         MLX5_SET(vlan, vlan, prio, fte->action.vlan[1].prio);
 420
 421         in_match_value = MLX5_ADDR_OF(flow_context, in_flow_context,
 422                                       match_value);
 423         memcpy(in_match_value, &fte->val, sizeof(fte->val));
 424
 425         in_dests = MLX5_ADDR_OF(flow_context, in_flow_context, destination);
 426         if (fte->action.action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
 427                 int list_size = 0;
 428
 429                 list_for_each_entry(dst, &fte->node.children, node.list) {
 430                         unsigned int id, type = dst->dest_attr.type;
 431
 432                         if (type == MLX5_FLOW_DESTINATION_TYPE_COUNTER)
 433                                 continue;
 434
 435                         switch (type) {
 436                         case MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE_NUM:
 437                                 id = dst->dest_attr.ft_num;
 438                                 type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
 439                                 break;
 440                         case MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE:
 441                                 id = dst->dest_attr.ft->id;
 442                                 break;
 443                         case MLX5_FLOW_DESTINATION_TYPE_VPORT:
 444                                 id = dst->dest_attr.vport.num;
 445                                 MLX5_SET(dest_format_struct, in_dests,
 446                                          destination_eswitch_owner_vhca_id_valid,
 447                                          !!(dst->dest_attr.vport.flags &
 448                                             MLX5_FLOW_DEST_VPORT_VHCA_ID));
 449                                 MLX5_SET(dest_format_struct, in_dests,
 450                                          destination_eswitch_owner_vhca_id,
 451                                          dst->dest_attr.vport.vhca_id);
 452                                 if (extended_dest) {
 453                                         MLX5_SET(dest_format_struct, in_dests,
 454                                                  packet_reformat,
 455                                                  !!(dst->dest_attr.vport.flags &
 456                                                     MLX5_FLOW_DEST_VPORT_REFORMAT_ID));
 457                                         MLX5_SET(extended_dest_format, in_dests,
 458                                                  packet_reformat_id,
 459                                                  dst->dest_attr.vport.reformat_id);
 460                                 }
 461                                 break;
 462                         default:
 463                                 id = dst->dest_attr.tir_num;
 464                         }
 465
 466                         MLX5_SET(dest_format_struct, in_dests, destination_type,
 467                                  type);
 468                         MLX5_SET(dest_format_struct, in_dests, destination_id, id);
 469                         in_dests += dst_cnt_size;
 470                         list_size++;
 471                 }
 472
 473                 MLX5_SET(flow_context, in_flow_context, destination_list_size,
 474                          list_size);
 475         }
 476
 477         if (fte->action.action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
 478                 int max_list_size = BIT(MLX5_CAP_FLOWTABLE_TYPE(dev,
 479                                         log_max_flow_counter,
 480                                         ft->type));
 481                 int list_size = 0;
 482
 483                 list_for_each_entry(dst, &fte->node.children, node.list) {
 484                         if (dst->dest_attr.type !=
 485                             MLX5_FLOW_DESTINATION_TYPE_COUNTER)
 486                                 continue;
 487
 488                         MLX5_SET(flow_counter_list, in_dests, flow_counter_id,
 489                                  dst->dest_attr.counter_id);
 490                         in_dests += dst_cnt_size;
 491                         list_size++;
 492                 }
 493                 if (list_size > max_list_size) {
 494                         err = -EINVAL;
 495                         goto err_out;
 496                 }
 497
 498                 MLX5_SET(flow_context, in_flow_context, flow_counter_list_size,
 499                          list_size);
 500         }
 501
 502         err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 503 err_out:
 504         kvfree(in);
 505         return err;
 506 }
 507
 508 static int mlx5_cmd_create_fte(struct mlx5_core_dev *dev,
 509                                struct mlx5_flow_table *ft,
 510                                struct mlx5_flow_group *group,
 511                                struct fs_fte *fte)
 512 {
 513         unsigned int group_id = group->id;
 514
 515         return mlx5_cmd_set_fte(dev, 0, 0, ft, group_id, fte);
 516 }
 517
 518 static int mlx5_cmd_update_fte(struct mlx5_core_dev *dev,
 519                                struct mlx5_flow_table *ft,
 520                                unsigned int group_id,
 521                                int modify_mask,
 522                                struct fs_fte *fte)
 523 {
 524         int opmod;
 525         int atomic_mod_cap = MLX5_CAP_FLOWTABLE(dev,
 526                                                 flow_table_properties_nic_receive.
 527                                                 flow_modify_en);
 528         if (!atomic_mod_cap)
 529                 return -EOPNOTSUPP;
 530         opmod = 1;
 531
 532         return  mlx5_cmd_set_fte(dev, opmod, modify_mask, ft, group_id, fte);
 533 }
 534
 535 static int mlx5_cmd_delete_fte(struct mlx5_core_dev *dev,
 536                                struct mlx5_flow_table *ft,
 537                                struct fs_fte *fte)
 538 {
 539         u32 out[MLX5_ST_SZ_DW(delete_fte_out)] = {0};
 540         u32 in[MLX5_ST_SZ_DW(delete_fte_in)]   = {0};
 541
 542         MLX5_SET(delete_fte_in, in, opcode, MLX5_CMD_OP_DELETE_FLOW_TABLE_ENTRY);
 543         MLX5_SET(delete_fte_in, in, table_type, ft->type);
 544         MLX5_SET(delete_fte_in, in, table_id, ft->id);
 545         MLX5_SET(delete_fte_in, in, flow_index, fte->index);
 546         if (ft->vport) {
 547                 MLX5_SET(delete_fte_in, in, vport_number, ft->vport);
 548                 MLX5_SET(delete_fte_in, in, other_vport, 1);
 549         }
 550
 551         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 552 }
 553
 554 int mlx5_cmd_fc_alloc(struct mlx5_core_dev *dev, u32 *id)
 555 {
 556         u32 in[MLX5_ST_SZ_DW(alloc_flow_counter_in)]   = {0};
 557         u32 out[MLX5_ST_SZ_DW(alloc_flow_counter_out)] = {0};
 558         int err;
 559
 560         MLX5_SET(alloc_flow_counter_in, in, opcode,
 561                  MLX5_CMD_OP_ALLOC_FLOW_COUNTER);
 562
 563         err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 564         if (!err)
 565                 *id = MLX5_GET(alloc_flow_counter_out, out, flow_counter_id);
 566         return err;
 567 }
 568
 569 int mlx5_cmd_fc_free(struct mlx5_core_dev *dev, u32 id)
 570 {
 571         u32 in[MLX5_ST_SZ_DW(dealloc_flow_counter_in)]   = {0};
 572         u32 out[MLX5_ST_SZ_DW(dealloc_flow_counter_out)] = {0};
 573
 574         MLX5_SET(dealloc_flow_counter_in, in, opcode,
 575                  MLX5_CMD_OP_DEALLOC_FLOW_COUNTER);
 576         MLX5_SET(dealloc_flow_counter_in, in, flow_counter_id, id);
 577         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 578 }
 579
 580 int mlx5_cmd_fc_query(struct mlx5_core_dev *dev, u32 id,
 581                       u64 *packets, u64 *bytes)
 582 {
 583         u32 out[MLX5_ST_SZ_BYTES(query_flow_counter_out) +
 584                 MLX5_ST_SZ_BYTES(traffic_counter)]   = {0};
 585         u32 in[MLX5_ST_SZ_DW(query_flow_counter_in)] = {0};
 586         void *stats;
 587         int err = 0;
 588
 589         MLX5_SET(query_flow_counter_in, in, opcode,
 590                  MLX5_CMD_OP_QUERY_FLOW_COUNTER);
 591         MLX5_SET(query_flow_counter_in, in, op_mod, 0);
 592         MLX5_SET(query_flow_counter_in, in, flow_counter_id, id);
 593         err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 594         if (err)
 595                 return err;
 596
 597         stats = MLX5_ADDR_OF(query_flow_counter_out, out, flow_statistics);
 598         *packets = MLX5_GET64(traffic_counter, stats, packets);
 599         *bytes = MLX5_GET64(traffic_counter, stats, octets);
 600         return 0;
 601 }
 602
 603 struct mlx5_cmd_fc_bulk {
 604         u32 id;
 605         int num;
 606         int outlen;
 607         u32 out[0];
 608 };
 609
 610 struct mlx5_cmd_fc_bulk *
 611 mlx5_cmd_fc_bulk_alloc(struct mlx5_core_dev *dev, u32 id, int num)
 612 {
 613         struct mlx5_cmd_fc_bulk *b;
 614         int outlen =
 615                 MLX5_ST_SZ_BYTES(query_flow_counter_out) +
 616                 MLX5_ST_SZ_BYTES(traffic_counter) * num;
 617
 618         b = kzalloc(sizeof(*b) + outlen, GFP_KERNEL);
 619         if (!b)
 620                 return NULL;
 621
 622         b->id = id;
 623         b->num = num;
 624         b->outlen = outlen;
 625
 626         return b;
 627 }
 628
 629 void mlx5_cmd_fc_bulk_free(struct mlx5_cmd_fc_bulk *b)
 630 {
 631         kfree(b);
 632 }
 633
 634 int
 635 mlx5_cmd_fc_bulk_query(struct mlx5_core_dev *dev, struct mlx5_cmd_fc_bulk *b)
 636 {
 637         u32 in[MLX5_ST_SZ_DW(query_flow_counter_in)] = {0};
 638
 639         MLX5_SET(query_flow_counter_in, in, opcode,
 640                  MLX5_CMD_OP_QUERY_FLOW_COUNTER);
 641         MLX5_SET(query_flow_counter_in, in, op_mod, 0);
 642         MLX5_SET(query_flow_counter_in, in, flow_counter_id, b->id);
 643         MLX5_SET(query_flow_counter_in, in, num_of_counters, b->num);
 644         return mlx5_cmd_exec(dev, in, sizeof(in), b->out, b->outlen);
 645 }
 646
 647 void mlx5_cmd_fc_bulk_get(struct mlx5_core_dev *dev,
 648                           struct mlx5_cmd_fc_bulk *b, u32 id,
 649                           u64 *packets, u64 *bytes)
 650 {
 651         int index = id - b->id;
 652         void *stats;
 653
 654         if (index < 0 || index >= b->num) {
 655                 mlx5_core_warn(dev, "Flow counter id (0x%x) out of range (0x%x..0x%x). Counter ignored.\n",
 656                                id, b->id, b->id + b->num - 1);
 657                 return;
 658         }
 659
 660         stats = MLX5_ADDR_OF(query_flow_counter_out, b->out,
 661                              flow_statistics[index]);
 662         *packets = MLX5_GET64(traffic_counter, stats, packets);
 663         *bytes = MLX5_GET64(traffic_counter, stats, octets);
 664 }
 665
 666 int mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
 667                                int reformat_type,
 668                                size_t size,
 669                                void *reformat_data,
 670                                enum mlx5_flow_namespace_type namespace,
 671                                u32 *packet_reformat_id)
 672 {
 673         u32 out[MLX5_ST_SZ_DW(alloc_packet_reformat_context_out)];
 674         void *packet_reformat_context_in;
 675         int max_encap_size;
 676         void *reformat;
 677         int inlen;
 678         int err;
 679         u32 *in;
 680
 681         if (namespace == MLX5_FLOW_NAMESPACE_FDB)
 682                 max_encap_size = MLX5_CAP_ESW(dev, max_encap_header_size);
 683         else
 684                 max_encap_size = MLX5_CAP_FLOWTABLE(dev, max_encap_header_size);
 685
 686         if (size > max_encap_size) {
 687                 mlx5_core_warn(dev, "encap size %zd too big, max supported is %d\n",
 688                                size, max_encap_size);
 689                 return -EINVAL;
 690         }
 691
 692         in = kzalloc(MLX5_ST_SZ_BYTES(alloc_packet_reformat_context_in) + size,
 693                      GFP_KERNEL);
 694         if (!in)
 695                 return -ENOMEM;
 696
 697         packet_reformat_context_in = MLX5_ADDR_OF(alloc_packet_reformat_context_in,
 698                                                   in, packet_reformat_context);
 699         reformat = MLX5_ADDR_OF(packet_reformat_context_in,
 700                                 packet_reformat_context_in,
 701                                 reformat_data);
 702         inlen = reformat - (void *)in  + size;
 703
 704         memset(in, 0, inlen);
 705         MLX5_SET(alloc_packet_reformat_context_in, in, opcode,
 706                  MLX5_CMD_OP_ALLOC_PACKET_REFORMAT_CONTEXT);
 707         MLX5_SET(packet_reformat_context_in, packet_reformat_context_in,
 708                  reformat_data_size, size);
 709         MLX5_SET(packet_reformat_context_in, packet_reformat_context_in,
 710                  reformat_type, reformat_type);
 711         memcpy(reformat, reformat_data, size);
 712
 713         memset(out, 0, sizeof(out));
 714         err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 715
 716         *packet_reformat_id = MLX5_GET(alloc_packet_reformat_context_out,
 717                                        out, packet_reformat_id);
 718         kfree(in);
 719         return err;
 720 }
 721 EXPORT_SYMBOL(mlx5_packet_reformat_alloc);
 722
 723 void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
 724                                   u32 packet_reformat_id)
 725 {
 726         u32 in[MLX5_ST_SZ_DW(dealloc_packet_reformat_context_in)];
 727         u32 out[MLX5_ST_SZ_DW(dealloc_packet_reformat_context_out)];
 728
 729         memset(in, 0, sizeof(in));
 730         MLX5_SET(dealloc_packet_reformat_context_in, in, opcode,
 731                  MLX5_CMD_OP_DEALLOC_PACKET_REFORMAT_CONTEXT);
 732         MLX5_SET(dealloc_packet_reformat_context_in, in, packet_reformat_id,
 733                  packet_reformat_id);
 734
 735         mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 736 }
 737 EXPORT_SYMBOL(mlx5_packet_reformat_dealloc);
 738
 739 int mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
 740                              u8 namespace, u8 num_actions,
 741                              void *modify_actions, u32 *modify_header_id)
 742 {
 743         u32 out[MLX5_ST_SZ_DW(alloc_modify_header_context_out)];
 744         int max_actions, actions_size, inlen, err;
 745         void *actions_in;
 746         u8 table_type;
 747         u32 *in;
 748
 749         switch (namespace) {
 750         case MLX5_FLOW_NAMESPACE_FDB:
 751                 max_actions = MLX5_CAP_ESW_FLOWTABLE_FDB(dev, max_modify_header_actions);
 752                 table_type = FS_FT_FDB;
 753                 break;
 754         case MLX5_FLOW_NAMESPACE_KERNEL:
 755         case MLX5_FLOW_NAMESPACE_BYPASS:
 756                 max_actions = MLX5_CAP_FLOWTABLE_NIC_RX(dev, max_modify_header_actions);
 757                 table_type = FS_FT_NIC_RX;
 758                 break;
 759         case MLX5_FLOW_NAMESPACE_EGRESS:
 760                 max_actions = MLX5_CAP_FLOWTABLE_NIC_TX(dev, max_modify_header_actions);
 761                 table_type = FS_FT_NIC_TX;
 762                 break;
 763         default:
 764                 return -EOPNOTSUPP;
 765         }
 766
 767         if (num_actions > max_actions) {
 768                 mlx5_core_warn(dev, "too many modify header actions %d, max supported %d\n",
 769                                num_actions, max_actions);
 770                 return -EOPNOTSUPP;
 771         }
 772
 773         actions_size = MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto) * num_actions;
 774         inlen = MLX5_ST_SZ_BYTES(alloc_modify_header_context_in) + actions_size;
 775
 776         in = kzalloc(inlen, GFP_KERNEL);
 777         if (!in)
 778                 return -ENOMEM;
 779
 780         MLX5_SET(alloc_modify_header_context_in, in, opcode,
 781                  MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT);
 782         MLX5_SET(alloc_modify_header_context_in, in, table_type, table_type);
 783         MLX5_SET(alloc_modify_header_context_in, in, num_of_actions, num_actions);
 784
 785         actions_in = MLX5_ADDR_OF(alloc_modify_header_context_in, in, actions);
 786         memcpy(actions_in, modify_actions, actions_size);
 787
 788         memset(out, 0, sizeof(out));
 789         err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 790
 791         *modify_header_id = MLX5_GET(alloc_modify_header_context_out, out, modify_header_id);
 792         kfree(in);
 793         return err;
 794 }
 795 EXPORT_SYMBOL(mlx5_modify_header_alloc);
 796
 797 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev, u32 modify_header_id)
 798 {
 799         u32 in[MLX5_ST_SZ_DW(dealloc_modify_header_context_in)];
 800         u32 out[MLX5_ST_SZ_DW(dealloc_modify_header_context_out)];
 801
 802         memset(in, 0, sizeof(in));
 803         MLX5_SET(dealloc_modify_header_context_in, in, opcode,
 804                  MLX5_CMD_OP_DEALLOC_MODIFY_HEADER_CONTEXT);
 805         MLX5_SET(dealloc_modify_header_context_in, in, modify_header_id,
 806                  modify_header_id);
 807
 808         mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 809 }
 810 EXPORT_SYMBOL(mlx5_modify_header_dealloc);
 811
 812 static const struct mlx5_flow_cmds mlx5_flow_cmds = {
 813         .create_flow_table = mlx5_cmd_create_flow_table,
 814         .destroy_flow_table = mlx5_cmd_destroy_flow_table,
 815         .modify_flow_table = mlx5_cmd_modify_flow_table,
 816         .create_flow_group = mlx5_cmd_create_flow_group,
 817         .destroy_flow_group = mlx5_cmd_destroy_flow_group,
 818         .create_fte = mlx5_cmd_create_fte,
 819         .update_fte = mlx5_cmd_update_fte,
 820         .delete_fte = mlx5_cmd_delete_fte,
 821         .update_root_ft = mlx5_cmd_update_root_ft,
 822 };
 823
 824 static const struct mlx5_flow_cmds mlx5_flow_cmd_stubs = {
 825         .create_flow_table = mlx5_cmd_stub_create_flow_table,
 826         .destroy_flow_table = mlx5_cmd_stub_destroy_flow_table,
 827         .modify_flow_table = mlx5_cmd_stub_modify_flow_table,
 828         .create_flow_group = mlx5_cmd_stub_create_flow_group,
 829         .destroy_flow_group = mlx5_cmd_stub_destroy_flow_group,
 830         .create_fte = mlx5_cmd_stub_create_fte,
 831         .update_fte = mlx5_cmd_stub_update_fte,
 832         .delete_fte = mlx5_cmd_stub_delete_fte,
 833         .update_root_ft = mlx5_cmd_stub_update_root_ft,
 834 };
 835
 836 static const struct mlx5_flow_cmds *mlx5_fs_cmd_get_fw_cmds(void)
 837 {
 838         return &mlx5_flow_cmds;
 839 }
 840
 841 static const struct mlx5_flow_cmds *mlx5_fs_cmd_get_stub_cmds(void)
 842 {
 843         return &mlx5_flow_cmd_stubs;
 844 }
 845
 846 const struct mlx5_flow_cmds *mlx5_fs_cmd_get_default(enum fs_flow_table_type type)
 847 {
 848         switch (type) {
 849         case FS_FT_NIC_RX:
 850         case FS_FT_ESW_EGRESS_ACL:
 851         case FS_FT_ESW_INGRESS_ACL:
 852         case FS_FT_FDB:
 853         case FS_FT_SNIFFER_RX:
 854         case FS_FT_SNIFFER_TX:
 855         case FS_FT_NIC_TX:
 856                 return mlx5_fs_cmd_get_fw_cmds();
 857         default:
 858                 return mlx5_fs_cmd_get_stub_cmds();
 859         }
 860 }