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
  41 int mlx5_cmd_update_root_ft(struct mlx5_core_dev *dev,
  42                             struct mlx5_flow_table *ft)
  43 {
  44         u32 in[MLX5_ST_SZ_DW(set_flow_table_root_in)]   = {0};
  45         u32 out[MLX5_ST_SZ_DW(set_flow_table_root_out)] = {0};
  46
  47         MLX5_SET(set_flow_table_root_in, in, opcode,
  48                  MLX5_CMD_OP_SET_FLOW_TABLE_ROOT);
  49         MLX5_SET(set_flow_table_root_in, in, table_type, ft->type);
  50         MLX5_SET(set_flow_table_root_in, in, table_id, ft->id);
  51         if (ft->vport) {
  52                 MLX5_SET(set_flow_table_root_in, in, vport_number, ft->vport);
  53                 MLX5_SET(set_flow_table_root_in, in, other_vport, 1);
  54         }
  55
  56         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
  57 }
  58
  59 int mlx5_cmd_create_flow_table(struct mlx5_core_dev *dev,
  60                                u16 vport,
  61                                enum fs_flow_table_op_mod op_mod,
  62                                enum fs_flow_table_type type, unsigned int level,
  63                                unsigned int log_size, struct mlx5_flow_table
  64                                *next_ft, unsigned int *table_id)
  65 {
  66         u32 out[MLX5_ST_SZ_DW(create_flow_table_out)] = {0};
  67         u32 in[MLX5_ST_SZ_DW(create_flow_table_in)]   = {0};
  68         int err;
  69
  70         MLX5_SET(create_flow_table_in, in, opcode,
  71                  MLX5_CMD_OP_CREATE_FLOW_TABLE);
  72
  73         MLX5_SET(create_flow_table_in, in, table_type, type);
  74         MLX5_SET(create_flow_table_in, in, level, level);
  75         MLX5_SET(create_flow_table_in, in, log_size, log_size);
  76         if (vport) {
  77                 MLX5_SET(create_flow_table_in, in, vport_number, vport);
  78                 MLX5_SET(create_flow_table_in, in, other_vport, 1);
  79         }
  80
  81         switch (op_mod) {
  82         case FS_FT_OP_MOD_NORMAL:
  83                 if (next_ft) {
  84                         MLX5_SET(create_flow_table_in, in, table_miss_mode, 1);
  85                         MLX5_SET(create_flow_table_in, in, table_miss_id, next_ft->id);
  86                 }
  87                 break;
  88
  89         case FS_FT_OP_MOD_LAG_DEMUX:
  90                 MLX5_SET(create_flow_table_in, in, op_mod, 0x1);
  91                 if (next_ft)
  92                         MLX5_SET(create_flow_table_in, in, lag_master_next_table_id,
  93                                  next_ft->id);
  94                 break;
  95         }
  96
  97         err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
  98         if (!err)
  99                 *table_id = MLX5_GET(create_flow_table_out, out,
 100                                      table_id);
 101         return err;
 102 }
 103
 104 int mlx5_cmd_destroy_flow_table(struct mlx5_core_dev *dev,
 105                                 struct mlx5_flow_table *ft)
 106 {
 107         u32 in[MLX5_ST_SZ_DW(destroy_flow_table_in)]   = {0};
 108         u32 out[MLX5_ST_SZ_DW(destroy_flow_table_out)] = {0};
 109
 110         MLX5_SET(destroy_flow_table_in, in, opcode,
 111                  MLX5_CMD_OP_DESTROY_FLOW_TABLE);
 112         MLX5_SET(destroy_flow_table_in, in, table_type, ft->type);
 113         MLX5_SET(destroy_flow_table_in, in, table_id, ft->id);
 114         if (ft->vport) {
 115                 MLX5_SET(destroy_flow_table_in, in, vport_number, ft->vport);
 116                 MLX5_SET(destroy_flow_table_in, in, other_vport, 1);
 117         }
 118
 119         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 120 }
 121
 122 int mlx5_cmd_modify_flow_table(struct mlx5_core_dev *dev,
 123                                struct mlx5_flow_table *ft,
 124                                struct mlx5_flow_table *next_ft)
 125 {
 126         u32 in[MLX5_ST_SZ_DW(modify_flow_table_in)]   = {0};
 127         u32 out[MLX5_ST_SZ_DW(modify_flow_table_out)] = {0};
 128
 129         MLX5_SET(modify_flow_table_in, in, opcode,
 130                  MLX5_CMD_OP_MODIFY_FLOW_TABLE);
 131         MLX5_SET(modify_flow_table_in, in, table_type, ft->type);
 132         MLX5_SET(modify_flow_table_in, in, table_id, ft->id);
 133
 134         if (ft->op_mod == FS_FT_OP_MOD_LAG_DEMUX) {
 135                 MLX5_SET(modify_flow_table_in, in, modify_field_select,
 136                          MLX5_MODIFY_FLOW_TABLE_LAG_NEXT_TABLE_ID);
 137                 if (next_ft) {
 138                         MLX5_SET(modify_flow_table_in, in,
 139                                  lag_master_next_table_id, next_ft->id);
 140                 } else {
 141                         MLX5_SET(modify_flow_table_in, in,
 142                                  lag_master_next_table_id, 0);
 143                 }
 144         } else {
 145                 if (ft->vport) {
 146                         MLX5_SET(modify_flow_table_in, in, vport_number,
 147                                  ft->vport);
 148                         MLX5_SET(modify_flow_table_in, in, other_vport, 1);
 149                 }
 150                 MLX5_SET(modify_flow_table_in, in, modify_field_select,
 151                          MLX5_MODIFY_FLOW_TABLE_MISS_TABLE_ID);
 152                 if (next_ft) {
 153                         MLX5_SET(modify_flow_table_in, in, table_miss_mode, 1);
 154                         MLX5_SET(modify_flow_table_in, in, table_miss_id,
 155                                  next_ft->id);
 156                 } else {
 157                         MLX5_SET(modify_flow_table_in, in, table_miss_mode, 0);
 158                 }
 159         }
 160
 161         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 162 }
 163
 164 int mlx5_cmd_create_flow_group(struct mlx5_core_dev *dev,
 165                                struct mlx5_flow_table *ft,
 166                                u32 *in,
 167                                unsigned int *group_id)
 168 {
 169         u32 out[MLX5_ST_SZ_DW(create_flow_group_out)] = {0};
 170         int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
 171         int err;
 172
 173         MLX5_SET(create_flow_group_in, in, opcode,
 174                  MLX5_CMD_OP_CREATE_FLOW_GROUP);
 175         MLX5_SET(create_flow_group_in, in, table_type, ft->type);
 176         MLX5_SET(create_flow_group_in, in, table_id, ft->id);
 177         if (ft->vport) {
 178                 MLX5_SET(create_flow_group_in, in, vport_number, ft->vport);
 179                 MLX5_SET(create_flow_group_in, in, other_vport, 1);
 180         }
 181
 182         err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 183         if (!err)
 184                 *group_id = MLX5_GET(create_flow_group_out, out,
 185                                      group_id);
 186         return err;
 187 }
 188
 189 int mlx5_cmd_destroy_flow_group(struct mlx5_core_dev *dev,
 190                                 struct mlx5_flow_table *ft,
 191                                 unsigned int group_id)
 192 {
 193         u32 out[MLX5_ST_SZ_DW(destroy_flow_group_out)] = {0};
 194         u32 in[MLX5_ST_SZ_DW(destroy_flow_group_in)]   = {0};
 195
 196         MLX5_SET(destroy_flow_group_in, in, opcode,
 197                  MLX5_CMD_OP_DESTROY_FLOW_GROUP);
 198         MLX5_SET(destroy_flow_group_in, in, table_type, ft->type);
 199         MLX5_SET(destroy_flow_group_in, in, table_id, ft->id);
 200         MLX5_SET(destroy_flow_group_in, in, group_id, group_id);
 201         if (ft->vport) {
 202                 MLX5_SET(destroy_flow_group_in, in, vport_number, ft->vport);
 203                 MLX5_SET(destroy_flow_group_in, in, other_vport, 1);
 204         }
 205
 206         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 207 }
 208
 209 static int mlx5_cmd_set_fte(struct mlx5_core_dev *dev,
 210                             int opmod, int modify_mask,
 211                             struct mlx5_flow_table *ft,
 212                             unsigned group_id,
 213                             struct fs_fte *fte)
 214 {
 215         unsigned int inlen = MLX5_ST_SZ_BYTES(set_fte_in) +
 216                 fte->dests_size * MLX5_ST_SZ_BYTES(dest_format_struct);
 217         u32 out[MLX5_ST_SZ_DW(set_fte_out)] = {0};
 218         struct mlx5_flow_rule *dst;
 219         void *in_flow_context;
 220         void *in_match_value;
 221         void *in_dests;
 222         u32 *in;
 223         int err;
 224
 225         in = mlx5_vzalloc(inlen);
 226         if (!in) {
 227                 mlx5_core_warn(dev, "failed to allocate inbox\n");
 228                 return -ENOMEM;
 229         }
 230
 231         MLX5_SET(set_fte_in, in, opcode, MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY);
 232         MLX5_SET(set_fte_in, in, op_mod, opmod);
 233         MLX5_SET(set_fte_in, in, modify_enable_mask, modify_mask);
 234         MLX5_SET(set_fte_in, in, table_type, ft->type);
 235         MLX5_SET(set_fte_in, in, table_id,   ft->id);
 236         MLX5_SET(set_fte_in, in, flow_index, fte->index);
 237         if (ft->vport) {
 238                 MLX5_SET(set_fte_in, in, vport_number, ft->vport);
 239                 MLX5_SET(set_fte_in, in, other_vport, 1);
 240         }
 241
 242         in_flow_context = MLX5_ADDR_OF(set_fte_in, in, flow_context);
 243         MLX5_SET(flow_context, in_flow_context, group_id, group_id);
 244         MLX5_SET(flow_context, in_flow_context, flow_tag, fte->flow_tag);
 245         MLX5_SET(flow_context, in_flow_context, action, fte->action);
 246         in_match_value = MLX5_ADDR_OF(flow_context, in_flow_context,
 247                                       match_value);
 248         memcpy(in_match_value, &fte->val, MLX5_ST_SZ_BYTES(fte_match_param));
 249
 250         in_dests = MLX5_ADDR_OF(flow_context, in_flow_context, destination);
 251         if (fte->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
 252                 int list_size = 0;
 253
 254                 list_for_each_entry(dst, &fte->node.children, node.list) {
 255                         unsigned int id;
 256
 257                         if (dst->dest_attr.type == MLX5_FLOW_DESTINATION_TYPE_COUNTER)
 258                                 continue;
 259
 260                         MLX5_SET(dest_format_struct, in_dests, destination_type,
 261                                  dst->dest_attr.type);
 262                         if (dst->dest_attr.type ==
 263                             MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE) {
 264                                 id = dst->dest_attr.ft->id;
 265                         } else {
 266                                 id = dst->dest_attr.tir_num;
 267                         }
 268                         MLX5_SET(dest_format_struct, in_dests, destination_id, id);
 269                         in_dests += MLX5_ST_SZ_BYTES(dest_format_struct);
 270                         list_size++;
 271                 }
 272
 273                 MLX5_SET(flow_context, in_flow_context, destination_list_size,
 274                          list_size);
 275         }
 276
 277         if (fte->action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
 278                 int list_size = 0;
 279
 280                 list_for_each_entry(dst, &fte->node.children, node.list) {
 281                         if (dst->dest_attr.type !=
 282                             MLX5_FLOW_DESTINATION_TYPE_COUNTER)
 283                                 continue;
 284
 285                         MLX5_SET(flow_counter_list, in_dests, flow_counter_id,
 286                                  dst->dest_attr.counter->id);
 287                         in_dests += MLX5_ST_SZ_BYTES(dest_format_struct);
 288                         list_size++;
 289                 }
 290
 291                 MLX5_SET(flow_context, in_flow_context, flow_counter_list_size,
 292                          list_size);
 293         }
 294
 295         err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 296         kvfree(in);
 297         return err;
 298 }
 299
 300 int mlx5_cmd_create_fte(struct mlx5_core_dev *dev,
 301                         struct mlx5_flow_table *ft,
 302                         unsigned group_id,
 303                         struct fs_fte *fte)
 304 {
 305         return mlx5_cmd_set_fte(dev, 0, 0, ft, group_id, fte);
 306 }
 307
 308 int mlx5_cmd_update_fte(struct mlx5_core_dev *dev,
 309                         struct mlx5_flow_table *ft,
 310                         unsigned group_id,
 311                         int modify_mask,
 312                         struct fs_fte *fte)
 313 {
 314         int opmod;
 315         int atomic_mod_cap = MLX5_CAP_FLOWTABLE(dev,
 316                                                 flow_table_properties_nic_receive.
 317                                                 flow_modify_en);
 318         if (!atomic_mod_cap)
 319                 return -ENOTSUPP;
 320         opmod = 1;
 321
 322         return  mlx5_cmd_set_fte(dev, opmod, modify_mask, ft, group_id, fte);
 323 }
 324
 325 int mlx5_cmd_delete_fte(struct mlx5_core_dev *dev,
 326                         struct mlx5_flow_table *ft,
 327                         unsigned int index)
 328 {
 329         u32 out[MLX5_ST_SZ_DW(delete_fte_out)] = {0};
 330         u32 in[MLX5_ST_SZ_DW(delete_fte_in)]   = {0};
 331
 332         MLX5_SET(delete_fte_in, in, opcode, MLX5_CMD_OP_DELETE_FLOW_TABLE_ENTRY);
 333         MLX5_SET(delete_fte_in, in, table_type, ft->type);
 334         MLX5_SET(delete_fte_in, in, table_id, ft->id);
 335         MLX5_SET(delete_fte_in, in, flow_index, index);
 336         if (ft->vport) {
 337                 MLX5_SET(delete_fte_in, in, vport_number, ft->vport);
 338                 MLX5_SET(delete_fte_in, in, other_vport, 1);
 339         }
 340
 341         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 342 }
 343
 344 int mlx5_cmd_fc_alloc(struct mlx5_core_dev *dev, u16 *id)
 345 {
 346         u32 in[MLX5_ST_SZ_DW(alloc_flow_counter_in)]   = {0};
 347         u32 out[MLX5_ST_SZ_DW(alloc_flow_counter_out)] = {0};
 348         int err;
 349
 350         MLX5_SET(alloc_flow_counter_in, in, opcode,
 351                  MLX5_CMD_OP_ALLOC_FLOW_COUNTER);
 352
 353         err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 354         if (!err)
 355                 *id = MLX5_GET(alloc_flow_counter_out, out, flow_counter_id);
 356         return err;
 357 }
 358
 359 int mlx5_cmd_fc_free(struct mlx5_core_dev *dev, u16 id)
 360 {
 361         u32 in[MLX5_ST_SZ_DW(dealloc_flow_counter_in)]   = {0};
 362         u32 out[MLX5_ST_SZ_DW(dealloc_flow_counter_out)] = {0};
 363
 364         MLX5_SET(dealloc_flow_counter_in, in, opcode,
 365                  MLX5_CMD_OP_DEALLOC_FLOW_COUNTER);
 366         MLX5_SET(dealloc_flow_counter_in, in, flow_counter_id, id);
 367         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 368 }
 369
 370 int mlx5_cmd_fc_query(struct mlx5_core_dev *dev, u16 id,
 371                       u64 *packets, u64 *bytes)
 372 {
 373         u32 out[MLX5_ST_SZ_BYTES(query_flow_counter_out) +
 374                 MLX5_ST_SZ_BYTES(traffic_counter)]   = {0};
 375         u32 in[MLX5_ST_SZ_DW(query_flow_counter_in)] = {0};
 376         void *stats;
 377         int err = 0;
 378
 379         MLX5_SET(query_flow_counter_in, in, opcode,
 380                  MLX5_CMD_OP_QUERY_FLOW_COUNTER);
 381         MLX5_SET(query_flow_counter_in, in, op_mod, 0);
 382         MLX5_SET(query_flow_counter_in, in, flow_counter_id, id);
 383         err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 384         if (err)
 385                 return err;
 386
 387         stats = MLX5_ADDR_OF(query_flow_counter_out, out, flow_statistics);
 388         *packets = MLX5_GET64(traffic_counter, stats, packets);
 389         *bytes = MLX5_GET64(traffic_counter, stats, octets);
 390         return 0;
 391 }
 392
 393 struct mlx5_cmd_fc_bulk {
 394         u16 id;
 395         int num;
 396         int outlen;
 397         u32 out[0];
 398 };
 399
 400 struct mlx5_cmd_fc_bulk *
 401 mlx5_cmd_fc_bulk_alloc(struct mlx5_core_dev *dev, u16 id, int num)
 402 {
 403         struct mlx5_cmd_fc_bulk *b;
 404         int outlen = sizeof(*b) +
 405                 MLX5_ST_SZ_BYTES(query_flow_counter_out) +
 406                 MLX5_ST_SZ_BYTES(traffic_counter) * num;
 407
 408         b = kzalloc(outlen, GFP_KERNEL);
 409         if (!b)
 410                 return NULL;
 411
 412         b->id = id;
 413         b->num = num;
 414         b->outlen = outlen;
 415
 416         return b;
 417 }
 418
 419 void mlx5_cmd_fc_bulk_free(struct mlx5_cmd_fc_bulk *b)
 420 {
 421         kfree(b);
 422 }
 423
 424 int
 425 mlx5_cmd_fc_bulk_query(struct mlx5_core_dev *dev, struct mlx5_cmd_fc_bulk *b)
 426 {
 427         u32 in[MLX5_ST_SZ_DW(query_flow_counter_in)] = {0};
 428
 429         MLX5_SET(query_flow_counter_in, in, opcode,
 430                  MLX5_CMD_OP_QUERY_FLOW_COUNTER);
 431         MLX5_SET(query_flow_counter_in, in, op_mod, 0);
 432         MLX5_SET(query_flow_counter_in, in, flow_counter_id, b->id);
 433         MLX5_SET(query_flow_counter_in, in, num_of_counters, b->num);
 434         return mlx5_cmd_exec(dev, in, sizeof(in), b->out, b->outlen);
 435 }
 436
 437 void mlx5_cmd_fc_bulk_get(struct mlx5_core_dev *dev,
 438                           struct mlx5_cmd_fc_bulk *b, u16 id,
 439                           u64 *packets, u64 *bytes)
 440 {
 441         int index = id - b->id;
 442         void *stats;
 443
 444         if (index < 0 || index >= b->num) {
 445                 mlx5_core_warn(dev, "Flow counter id (0x%x) out of range (0x%x..0x%x). Counter ignored.\n",
 446                                id, b->id, b->id + b->num - 1);
 447                 return;
 448         }
 449
 450         stats = MLX5_ADDR_OF(query_flow_counter_out, b->out,
 451                              flow_statistics[index]);
 452         *packets = MLX5_GET64(traffic_counter, stats, packets);
 453         *bytes = MLX5_GET64(traffic_counter, stats, octets);
 454 }
 455
 456 #define MAX_ENCAP_SIZE (128)
 457
 458 int mlx5_cmd_alloc_encap(struct mlx5_core_dev *dev,
 459                          int header_type,
 460                          size_t size,
 461                          void *encap_header,
 462                          u32 *encap_id)
 463 {
 464         u32 out[MLX5_ST_SZ_DW(alloc_encap_header_out)];
 465         u32 in[MLX5_ST_SZ_DW(alloc_encap_header_in) +
 466               (MAX_ENCAP_SIZE / sizeof(u32))];
 467         void *encap_header_in = MLX5_ADDR_OF(alloc_encap_header_in, in,
 468                                              encap_header);
 469         void *header = MLX5_ADDR_OF(encap_header_in, encap_header_in,
 470                                     encap_header);
 471         int inlen = header - (void *)in  + size;
 472         int err;
 473
 474         if (size > MAX_ENCAP_SIZE)
 475                 return -EINVAL;
 476
 477         memset(in, 0, inlen);
 478         MLX5_SET(alloc_encap_header_in, in, opcode,
 479                  MLX5_CMD_OP_ALLOC_ENCAP_HEADER);
 480         MLX5_SET(encap_header_in, encap_header_in, encap_header_size, size);
 481         MLX5_SET(encap_header_in, encap_header_in, header_type, header_type);
 482         memcpy(header, encap_header, size);
 483
 484         memset(out, 0, sizeof(out));
 485         err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 486
 487         *encap_id = MLX5_GET(alloc_encap_header_out, out, encap_id);
 488         return err;
 489 }
 490
 491 void mlx5_cmd_dealloc_encap(struct mlx5_core_dev *dev, u32 encap_id)
 492 {
 493         u32 in[MLX5_ST_SZ_DW(dealloc_encap_header_in)];
 494         u32 out[MLX5_ST_SZ_DW(dealloc_encap_header_out)];
 495
 496         memset(in, 0, sizeof(in));
 497         MLX5_SET(dealloc_encap_header_in, in, opcode,
 498                  MLX5_CMD_OP_DEALLOC_ENCAP_HEADER);
 499         MLX5_SET(dealloc_encap_header_in, in, encap_id, encap_id);
 500
 501         mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 502 }