1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 2 /* Copyright (c) 2016-2019 Mellanox Technologies. All rights reserved */ 3 4 #include <linux/netdevice.h> 5 #include <linux/etherdevice.h> 6 #include <linux/ethtool.h> 7 #include <linux/i2c.h> 8 #include <linux/kernel.h> 9 #include <linux/module.h> 10 #include <linux/mod_devicetable.h> 11 #include <linux/types.h> 12 13 #include "core.h" 14 #include "core_env.h" 15 #include "i2c.h" 16 17 static const char mlxsw_m_driver_name[] = "mlxsw_minimal"; 18 19 #define MLXSW_M_FWREV_MINOR 2000 20 #define MLXSW_M_FWREV_SUBMINOR 1886 21 22 static const struct mlxsw_fw_rev mlxsw_m_fw_rev = { 23 .minor = MLXSW_M_FWREV_MINOR, 24 .subminor = MLXSW_M_FWREV_SUBMINOR, 25 }; 26 27 struct mlxsw_m_port; 28 29 struct mlxsw_m_line_card { 30 bool active; 31 int module_to_port[]; 32 }; 33 34 struct mlxsw_m { 35 struct mlxsw_m_port **ports; 36 struct mlxsw_core *core; 37 const struct mlxsw_bus_info *bus_info; 38 u8 base_mac[ETH_ALEN]; 39 u8 max_ports; 40 u8 max_modules_per_slot; /* Maximum number of modules per-slot. */ 41 u8 num_of_slots; /* Including the main board. */ 42 struct mlxsw_m_line_card **line_cards; 43 }; 44 45 struct mlxsw_m_port { 46 struct net_device *dev; 47 struct mlxsw_m *mlxsw_m; 48 u16 local_port; 49 u8 slot_index; 50 u8 module; 51 u8 module_offset; 52 }; 53 54 static int mlxsw_m_base_mac_get(struct mlxsw_m *mlxsw_m) 55 { 56 char spad_pl[MLXSW_REG_SPAD_LEN] = {0}; 57 int err; 58 59 err = mlxsw_reg_query(mlxsw_m->core, MLXSW_REG(spad), spad_pl); 60 if (err) 61 return err; 62 mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_m->base_mac); 63 return 0; 64 } 65 66 static int mlxsw_m_port_open(struct net_device *dev) 67 { 68 struct mlxsw_m_port *mlxsw_m_port = netdev_priv(dev); 69 struct mlxsw_m *mlxsw_m = mlxsw_m_port->mlxsw_m; 70 71 return mlxsw_env_module_port_up(mlxsw_m->core, 0, 72 mlxsw_m_port->module); 73 } 74 75 static int mlxsw_m_port_stop(struct net_device *dev) 76 { 77 struct mlxsw_m_port *mlxsw_m_port = netdev_priv(dev); 78 struct mlxsw_m *mlxsw_m = mlxsw_m_port->mlxsw_m; 79 80 mlxsw_env_module_port_down(mlxsw_m->core, 0, mlxsw_m_port->module); 81 return 0; 82 } 83 84 static const struct net_device_ops mlxsw_m_port_netdev_ops = { 85 .ndo_open = mlxsw_m_port_open, 86 .ndo_stop = mlxsw_m_port_stop, 87 }; 88 89 static void mlxsw_m_module_get_drvinfo(struct net_device *dev, 90 struct ethtool_drvinfo *drvinfo) 91 { 92 struct mlxsw_m_port *mlxsw_m_port = netdev_priv(dev); 93 struct mlxsw_m *mlxsw_m = mlxsw_m_port->mlxsw_m; 94 95 strscpy(drvinfo->driver, mlxsw_m->bus_info->device_kind, 96 sizeof(drvinfo->driver)); 97 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), 98 "%d.%d.%d", 99 mlxsw_m->bus_info->fw_rev.major, 100 mlxsw_m->bus_info->fw_rev.minor, 101 mlxsw_m->bus_info->fw_rev.subminor); 102 strscpy(drvinfo->bus_info, mlxsw_m->bus_info->device_name, 103 sizeof(drvinfo->bus_info)); 104 } 105 106 static int mlxsw_m_get_module_info(struct net_device *netdev, 107 struct ethtool_modinfo *modinfo) 108 { 109 struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev); 110 struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core; 111 112 return mlxsw_env_get_module_info(netdev, core, 113 mlxsw_m_port->slot_index, 114 mlxsw_m_port->module, modinfo); 115 } 116 117 static int 118 mlxsw_m_get_module_eeprom(struct net_device *netdev, struct ethtool_eeprom *ee, 119 u8 *data) 120 { 121 struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev); 122 struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core; 123 124 return mlxsw_env_get_module_eeprom(netdev, core, 125 mlxsw_m_port->slot_index, 126 mlxsw_m_port->module, ee, data); 127 } 128 129 static int 130 mlxsw_m_get_module_eeprom_by_page(struct net_device *netdev, 131 const struct ethtool_module_eeprom *page, 132 struct netlink_ext_ack *extack) 133 { 134 struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev); 135 struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core; 136 137 return mlxsw_env_get_module_eeprom_by_page(core, 138 mlxsw_m_port->slot_index, 139 mlxsw_m_port->module, 140 page, extack); 141 } 142 143 static int 144 mlxsw_m_set_module_eeprom_by_page(struct net_device *netdev, 145 const struct ethtool_module_eeprom *page, 146 struct netlink_ext_ack *extack) 147 { 148 struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev); 149 struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core; 150 151 return mlxsw_env_set_module_eeprom_by_page(core, 152 mlxsw_m_port->slot_index, 153 mlxsw_m_port->module, 154 page, extack); 155 } 156 157 static int mlxsw_m_reset(struct net_device *netdev, u32 *flags) 158 { 159 struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev); 160 struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core; 161 162 return mlxsw_env_reset_module(netdev, core, mlxsw_m_port->slot_index, 163 mlxsw_m_port->module, 164 flags); 165 } 166 167 static int 168 mlxsw_m_get_module_power_mode(struct net_device *netdev, 169 struct ethtool_module_power_mode_params *params, 170 struct netlink_ext_ack *extack) 171 { 172 struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev); 173 struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core; 174 175 return mlxsw_env_get_module_power_mode(core, mlxsw_m_port->slot_index, 176 mlxsw_m_port->module, 177 params, extack); 178 } 179 180 static int 181 mlxsw_m_set_module_power_mode(struct net_device *netdev, 182 const struct ethtool_module_power_mode_params *params, 183 struct netlink_ext_ack *extack) 184 { 185 struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev); 186 struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core; 187 188 return mlxsw_env_set_module_power_mode(core, mlxsw_m_port->slot_index, 189 mlxsw_m_port->module, 190 params->policy, extack); 191 } 192 193 static const struct ethtool_ops mlxsw_m_port_ethtool_ops = { 194 .get_drvinfo = mlxsw_m_module_get_drvinfo, 195 .get_module_info = mlxsw_m_get_module_info, 196 .get_module_eeprom = mlxsw_m_get_module_eeprom, 197 .get_module_eeprom_by_page = mlxsw_m_get_module_eeprom_by_page, 198 .set_module_eeprom_by_page = mlxsw_m_set_module_eeprom_by_page, 199 .reset = mlxsw_m_reset, 200 .get_module_power_mode = mlxsw_m_get_module_power_mode, 201 .set_module_power_mode = mlxsw_m_set_module_power_mode, 202 }; 203 204 static int 205 mlxsw_m_port_module_info_get(struct mlxsw_m *mlxsw_m, u16 local_port, 206 u8 *p_module, u8 *p_width, u8 *p_slot_index) 207 { 208 char pmlp_pl[MLXSW_REG_PMLP_LEN]; 209 int err; 210 211 mlxsw_reg_pmlp_pack(pmlp_pl, local_port); 212 err = mlxsw_reg_query(mlxsw_m->core, MLXSW_REG(pmlp), pmlp_pl); 213 if (err) 214 return err; 215 *p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0); 216 *p_width = mlxsw_reg_pmlp_width_get(pmlp_pl); 217 *p_slot_index = mlxsw_reg_pmlp_slot_index_get(pmlp_pl, 0); 218 219 return 0; 220 } 221 222 static int 223 mlxsw_m_port_dev_addr_get(struct mlxsw_m_port *mlxsw_m_port) 224 { 225 struct mlxsw_m *mlxsw_m = mlxsw_m_port->mlxsw_m; 226 char ppad_pl[MLXSW_REG_PPAD_LEN]; 227 u8 addr[ETH_ALEN]; 228 int err; 229 230 mlxsw_reg_ppad_pack(ppad_pl, false, 0); 231 err = mlxsw_reg_query(mlxsw_m->core, MLXSW_REG(ppad), ppad_pl); 232 if (err) 233 return err; 234 mlxsw_reg_ppad_mac_memcpy_from(ppad_pl, addr); 235 eth_hw_addr_gen(mlxsw_m_port->dev, addr, mlxsw_m_port->module + 1 + 236 mlxsw_m_port->module_offset); 237 return 0; 238 } 239 240 static bool mlxsw_m_port_created(struct mlxsw_m *mlxsw_m, u16 local_port) 241 { 242 return mlxsw_m->ports[local_port]; 243 } 244 245 static int 246 mlxsw_m_port_create(struct mlxsw_m *mlxsw_m, u16 local_port, u8 slot_index, 247 u8 module) 248 { 249 struct mlxsw_m_port *mlxsw_m_port; 250 struct net_device *dev; 251 int err; 252 253 err = mlxsw_core_port_init(mlxsw_m->core, local_port, slot_index, 254 module + 1, false, 0, false, 255 0, mlxsw_m->base_mac, 256 sizeof(mlxsw_m->base_mac)); 257 if (err) { 258 dev_err(mlxsw_m->bus_info->dev, "Port %d: Failed to init core port\n", 259 local_port); 260 return err; 261 } 262 263 dev = alloc_etherdev(sizeof(struct mlxsw_m_port)); 264 if (!dev) { 265 err = -ENOMEM; 266 goto err_alloc_etherdev; 267 } 268 269 SET_NETDEV_DEV(dev, mlxsw_m->bus_info->dev); 270 dev_net_set(dev, mlxsw_core_net(mlxsw_m->core)); 271 mlxsw_m_port = netdev_priv(dev); 272 mlxsw_core_port_netdev_link(mlxsw_m->core, local_port, 273 mlxsw_m_port, dev); 274 mlxsw_m_port->dev = dev; 275 mlxsw_m_port->mlxsw_m = mlxsw_m; 276 mlxsw_m_port->local_port = local_port; 277 mlxsw_m_port->module = module; 278 mlxsw_m_port->slot_index = slot_index; 279 /* Add module offset for line card. Offset for main board iz zero. 280 * For line card in slot #n offset is calculated as (#n - 1) 281 * multiplied by maximum modules number, which could be found on a line 282 * card. 283 */ 284 mlxsw_m_port->module_offset = mlxsw_m_port->slot_index ? 285 (mlxsw_m_port->slot_index - 1) * 286 mlxsw_m->max_modules_per_slot : 0; 287 288 dev->netdev_ops = &mlxsw_m_port_netdev_ops; 289 dev->ethtool_ops = &mlxsw_m_port_ethtool_ops; 290 291 err = mlxsw_m_port_dev_addr_get(mlxsw_m_port); 292 if (err) { 293 dev_err(mlxsw_m->bus_info->dev, "Port %d: Unable to get port mac address\n", 294 mlxsw_m_port->local_port); 295 goto err_dev_addr_get; 296 } 297 298 netif_carrier_off(dev); 299 mlxsw_m->ports[local_port] = mlxsw_m_port; 300 err = register_netdev(dev); 301 if (err) { 302 dev_err(mlxsw_m->bus_info->dev, "Port %d: Failed to register netdev\n", 303 mlxsw_m_port->local_port); 304 goto err_register_netdev; 305 } 306 307 return 0; 308 309 err_register_netdev: 310 mlxsw_m->ports[local_port] = NULL; 311 err_dev_addr_get: 312 free_netdev(dev); 313 err_alloc_etherdev: 314 mlxsw_core_port_fini(mlxsw_m->core, local_port); 315 return err; 316 } 317 318 static void mlxsw_m_port_remove(struct mlxsw_m *mlxsw_m, u16 local_port) 319 { 320 struct mlxsw_m_port *mlxsw_m_port = mlxsw_m->ports[local_port]; 321 322 unregister_netdev(mlxsw_m_port->dev); /* This calls ndo_stop */ 323 mlxsw_m->ports[local_port] = NULL; 324 free_netdev(mlxsw_m_port->dev); 325 mlxsw_core_port_fini(mlxsw_m->core, local_port); 326 } 327 328 static int* 329 mlxsw_m_port_mapping_get(struct mlxsw_m *mlxsw_m, u8 slot_index, u8 module) 330 { 331 return &mlxsw_m->line_cards[slot_index]->module_to_port[module]; 332 } 333 334 static int mlxsw_m_port_module_map(struct mlxsw_m *mlxsw_m, u16 local_port, 335 u8 *last_module) 336 { 337 unsigned int max_ports = mlxsw_core_max_ports(mlxsw_m->core); 338 u8 module, width, slot_index; 339 int *module_to_port; 340 int err; 341 342 /* Fill out to local port mapping array */ 343 err = mlxsw_m_port_module_info_get(mlxsw_m, local_port, &module, 344 &width, &slot_index); 345 if (err) 346 return err; 347 348 /* Skip if line card has been already configured */ 349 if (mlxsw_m->line_cards[slot_index]->active) 350 return 0; 351 if (!width) 352 return 0; 353 /* Skip, if port belongs to the cluster */ 354 if (module == *last_module) 355 return 0; 356 *last_module = module; 357 358 if (WARN_ON_ONCE(module >= max_ports)) 359 return -EINVAL; 360 mlxsw_env_module_port_map(mlxsw_m->core, slot_index, module); 361 module_to_port = mlxsw_m_port_mapping_get(mlxsw_m, slot_index, module); 362 *module_to_port = local_port; 363 364 return 0; 365 } 366 367 static void 368 mlxsw_m_port_module_unmap(struct mlxsw_m *mlxsw_m, u8 slot_index, u8 module) 369 { 370 int *module_to_port = mlxsw_m_port_mapping_get(mlxsw_m, slot_index, 371 module); 372 *module_to_port = -1; 373 mlxsw_env_module_port_unmap(mlxsw_m->core, slot_index, module); 374 } 375 376 static int mlxsw_m_linecards_init(struct mlxsw_m *mlxsw_m) 377 { 378 unsigned int max_ports = mlxsw_core_max_ports(mlxsw_m->core); 379 char mgpir_pl[MLXSW_REG_MGPIR_LEN]; 380 u8 num_of_modules; 381 int i, j, err; 382 383 mlxsw_reg_mgpir_pack(mgpir_pl, 0); 384 err = mlxsw_reg_query(mlxsw_m->core, MLXSW_REG(mgpir), mgpir_pl); 385 if (err) 386 return err; 387 388 mlxsw_reg_mgpir_unpack(mgpir_pl, NULL, NULL, NULL, &num_of_modules, 389 &mlxsw_m->num_of_slots); 390 /* If the system is modular, get the maximum number of modules per-slot. 391 * Otherwise, get the maximum number of modules on the main board. 392 */ 393 if (mlxsw_m->num_of_slots) 394 mlxsw_m->max_modules_per_slot = 395 mlxsw_reg_mgpir_max_modules_per_slot_get(mgpir_pl); 396 else 397 mlxsw_m->max_modules_per_slot = num_of_modules; 398 /* Add slot for main board. */ 399 mlxsw_m->num_of_slots += 1; 400 401 mlxsw_m->ports = kzalloc_objs(*mlxsw_m->ports, max_ports); 402 if (!mlxsw_m->ports) 403 return -ENOMEM; 404 405 mlxsw_m->line_cards = kzalloc_objs(*mlxsw_m->line_cards, 406 mlxsw_m->num_of_slots); 407 if (!mlxsw_m->line_cards) { 408 err = -ENOMEM; 409 goto err_kcalloc; 410 } 411 412 for (i = 0; i < mlxsw_m->num_of_slots; i++) { 413 mlxsw_m->line_cards[i] = 414 kzalloc_flex(*mlxsw_m->line_cards[i], module_to_port, 415 mlxsw_m->max_modules_per_slot); 416 if (!mlxsw_m->line_cards[i]) { 417 err = -ENOMEM; 418 goto err_kmalloc_array; 419 } 420 421 /* Invalidate the entries of module to local port mapping array. */ 422 for (j = 0; j < mlxsw_m->max_modules_per_slot; j++) 423 mlxsw_m->line_cards[i]->module_to_port[j] = -1; 424 } 425 426 return 0; 427 428 err_kmalloc_array: 429 for (i--; i >= 0; i--) 430 kfree(mlxsw_m->line_cards[i]); 431 kfree(mlxsw_m->line_cards); 432 err_kcalloc: 433 kfree(mlxsw_m->ports); 434 return err; 435 } 436 437 static void mlxsw_m_linecards_fini(struct mlxsw_m *mlxsw_m) 438 { 439 int i = mlxsw_m->num_of_slots; 440 441 for (i--; i >= 0; i--) 442 kfree(mlxsw_m->line_cards[i]); 443 kfree(mlxsw_m->line_cards); 444 kfree(mlxsw_m->ports); 445 } 446 447 static void 448 mlxsw_m_linecard_port_module_unmap(struct mlxsw_m *mlxsw_m, u8 slot_index) 449 { 450 int i; 451 452 for (i = mlxsw_m->max_modules_per_slot - 1; i >= 0; i--) { 453 int *module_to_port; 454 455 module_to_port = mlxsw_m_port_mapping_get(mlxsw_m, slot_index, i); 456 if (*module_to_port > 0) 457 mlxsw_m_port_module_unmap(mlxsw_m, slot_index, i); 458 } 459 } 460 461 static int 462 mlxsw_m_linecard_ports_create(struct mlxsw_m *mlxsw_m, u8 slot_index) 463 { 464 int *module_to_port; 465 int i, err; 466 467 for (i = 0; i < mlxsw_m->max_modules_per_slot; i++) { 468 module_to_port = mlxsw_m_port_mapping_get(mlxsw_m, slot_index, i); 469 if (*module_to_port > 0) { 470 err = mlxsw_m_port_create(mlxsw_m, *module_to_port, 471 slot_index, i); 472 if (err) 473 goto err_port_create; 474 /* Mark slot as active */ 475 if (!mlxsw_m->line_cards[slot_index]->active) 476 mlxsw_m->line_cards[slot_index]->active = true; 477 } 478 } 479 return 0; 480 481 err_port_create: 482 for (i--; i >= 0; i--) { 483 module_to_port = mlxsw_m_port_mapping_get(mlxsw_m, slot_index, i); 484 if (*module_to_port > 0 && 485 mlxsw_m_port_created(mlxsw_m, *module_to_port)) { 486 mlxsw_m_port_remove(mlxsw_m, *module_to_port); 487 /* Mark slot as inactive */ 488 if (mlxsw_m->line_cards[slot_index]->active) 489 mlxsw_m->line_cards[slot_index]->active = false; 490 } 491 } 492 return err; 493 } 494 495 static void 496 mlxsw_m_linecard_ports_remove(struct mlxsw_m *mlxsw_m, u8 slot_index) 497 { 498 int i; 499 500 for (i = 0; i < mlxsw_m->max_modules_per_slot; i++) { 501 int *module_to_port = mlxsw_m_port_mapping_get(mlxsw_m, 502 slot_index, i); 503 504 if (*module_to_port > 0 && 505 mlxsw_m_port_created(mlxsw_m, *module_to_port)) { 506 mlxsw_m_port_remove(mlxsw_m, *module_to_port); 507 mlxsw_m_port_module_unmap(mlxsw_m, slot_index, i); 508 } 509 } 510 } 511 512 static int mlxsw_m_ports_module_map(struct mlxsw_m *mlxsw_m) 513 { 514 unsigned int max_ports = mlxsw_core_max_ports(mlxsw_m->core); 515 u8 last_module = max_ports; 516 int i, err; 517 518 for (i = 1; i < max_ports; i++) { 519 err = mlxsw_m_port_module_map(mlxsw_m, i, &last_module); 520 if (err) 521 return err; 522 } 523 524 return 0; 525 } 526 527 static int mlxsw_m_ports_create(struct mlxsw_m *mlxsw_m) 528 { 529 int err; 530 531 /* Fill out module to local port mapping array */ 532 err = mlxsw_m_ports_module_map(mlxsw_m); 533 if (err) 534 goto err_ports_module_map; 535 536 /* Create port objects for each valid entry */ 537 err = mlxsw_m_linecard_ports_create(mlxsw_m, 0); 538 if (err) 539 goto err_linecard_ports_create; 540 541 return 0; 542 543 err_linecard_ports_create: 544 err_ports_module_map: 545 mlxsw_m_linecard_port_module_unmap(mlxsw_m, 0); 546 547 return err; 548 } 549 550 static void mlxsw_m_ports_remove(struct mlxsw_m *mlxsw_m) 551 { 552 mlxsw_m_linecard_ports_remove(mlxsw_m, 0); 553 } 554 555 static void 556 mlxsw_m_ports_remove_selected(struct mlxsw_core *mlxsw_core, 557 bool (*selector)(void *priv, u16 local_port), 558 void *priv) 559 { 560 struct mlxsw_m *mlxsw_m = mlxsw_core_driver_priv(mlxsw_core); 561 struct mlxsw_linecard *linecard_priv = priv; 562 struct mlxsw_m_line_card *linecard; 563 564 linecard = mlxsw_m->line_cards[linecard_priv->slot_index]; 565 566 if (WARN_ON(!linecard->active)) 567 return; 568 569 mlxsw_m_linecard_ports_remove(mlxsw_m, linecard_priv->slot_index); 570 linecard->active = false; 571 } 572 573 static int mlxsw_m_fw_rev_validate(struct mlxsw_m *mlxsw_m) 574 { 575 const struct mlxsw_fw_rev *rev = &mlxsw_m->bus_info->fw_rev; 576 577 /* Validate driver and FW are compatible. 578 * Do not check major version, since it defines chip type, while 579 * driver is supposed to support any type. 580 */ 581 if (mlxsw_core_fw_rev_minor_subminor_validate(rev, &mlxsw_m_fw_rev)) 582 return 0; 583 584 dev_err(mlxsw_m->bus_info->dev, "The firmware version %d.%d.%d is incompatible with the driver (required >= %d.%d.%d)\n", 585 rev->major, rev->minor, rev->subminor, rev->major, 586 mlxsw_m_fw_rev.minor, mlxsw_m_fw_rev.subminor); 587 588 return -EINVAL; 589 } 590 591 static void 592 mlxsw_m_got_active(struct mlxsw_core *mlxsw_core, u8 slot_index, void *priv) 593 { 594 struct mlxsw_m_line_card *linecard; 595 struct mlxsw_m *mlxsw_m = priv; 596 int err; 597 598 linecard = mlxsw_m->line_cards[slot_index]; 599 /* Skip if line card has been already configured during init */ 600 if (linecard->active) 601 return; 602 603 /* Fill out module to local port mapping array */ 604 err = mlxsw_m_ports_module_map(mlxsw_m); 605 if (err) 606 goto err_ports_module_map; 607 608 /* Create port objects for each valid entry */ 609 err = mlxsw_m_linecard_ports_create(mlxsw_m, slot_index); 610 if (err) { 611 dev_err(mlxsw_m->bus_info->dev, "Failed to create port for line card at slot %d\n", 612 slot_index); 613 goto err_linecard_ports_create; 614 } 615 616 linecard->active = true; 617 618 return; 619 620 err_linecard_ports_create: 621 err_ports_module_map: 622 mlxsw_m_linecard_port_module_unmap(mlxsw_m, slot_index); 623 } 624 625 static void 626 mlxsw_m_got_inactive(struct mlxsw_core *mlxsw_core, u8 slot_index, void *priv) 627 { 628 struct mlxsw_m_line_card *linecard; 629 struct mlxsw_m *mlxsw_m = priv; 630 631 linecard = mlxsw_m->line_cards[slot_index]; 632 633 if (WARN_ON(!linecard->active)) 634 return; 635 636 mlxsw_m_linecard_ports_remove(mlxsw_m, slot_index); 637 linecard->active = false; 638 } 639 640 static struct mlxsw_linecards_event_ops mlxsw_m_event_ops = { 641 .got_active = mlxsw_m_got_active, 642 .got_inactive = mlxsw_m_got_inactive, 643 }; 644 645 static int mlxsw_m_init(struct mlxsw_core *mlxsw_core, 646 const struct mlxsw_bus_info *mlxsw_bus_info, 647 struct netlink_ext_ack *extack) 648 { 649 struct mlxsw_m *mlxsw_m = mlxsw_core_driver_priv(mlxsw_core); 650 int err; 651 652 mlxsw_m->core = mlxsw_core; 653 mlxsw_m->bus_info = mlxsw_bus_info; 654 655 err = mlxsw_m_fw_rev_validate(mlxsw_m); 656 if (err) 657 return err; 658 659 err = mlxsw_m_base_mac_get(mlxsw_m); 660 if (err) { 661 dev_err(mlxsw_m->bus_info->dev, "Failed to get base mac\n"); 662 return err; 663 } 664 665 err = mlxsw_m_linecards_init(mlxsw_m); 666 if (err) { 667 dev_err(mlxsw_m->bus_info->dev, "Failed to create line cards\n"); 668 return err; 669 } 670 671 err = mlxsw_linecards_event_ops_register(mlxsw_core, 672 &mlxsw_m_event_ops, mlxsw_m); 673 if (err) { 674 dev_err(mlxsw_m->bus_info->dev, "Failed to register line cards operations\n"); 675 goto linecards_event_ops_register; 676 } 677 678 err = mlxsw_m_ports_create(mlxsw_m); 679 if (err) { 680 dev_err(mlxsw_m->bus_info->dev, "Failed to create ports\n"); 681 goto err_ports_create; 682 } 683 684 return 0; 685 686 err_ports_create: 687 mlxsw_linecards_event_ops_unregister(mlxsw_core, 688 &mlxsw_m_event_ops, mlxsw_m); 689 linecards_event_ops_register: 690 mlxsw_m_linecards_fini(mlxsw_m); 691 return err; 692 } 693 694 static void mlxsw_m_fini(struct mlxsw_core *mlxsw_core) 695 { 696 struct mlxsw_m *mlxsw_m = mlxsw_core_driver_priv(mlxsw_core); 697 698 mlxsw_m_ports_remove(mlxsw_m); 699 mlxsw_linecards_event_ops_unregister(mlxsw_core, 700 &mlxsw_m_event_ops, mlxsw_m); 701 mlxsw_m_linecards_fini(mlxsw_m); 702 } 703 704 static const struct mlxsw_config_profile mlxsw_m_config_profile; 705 706 static struct mlxsw_driver mlxsw_m_driver = { 707 .kind = mlxsw_m_driver_name, 708 .priv_size = sizeof(struct mlxsw_m), 709 .init = mlxsw_m_init, 710 .fini = mlxsw_m_fini, 711 .ports_remove_selected = mlxsw_m_ports_remove_selected, 712 .profile = &mlxsw_m_config_profile, 713 }; 714 715 static const struct i2c_device_id mlxsw_m_i2c_id[] = { 716 { .name = "mlxsw_minimal" }, 717 { } 718 }; 719 720 static struct i2c_driver mlxsw_m_i2c_driver = { 721 .driver.name = "mlxsw_minimal", 722 .id_table = mlxsw_m_i2c_id, 723 }; 724 725 static int __init mlxsw_m_module_init(void) 726 { 727 int err; 728 729 err = mlxsw_core_driver_register(&mlxsw_m_driver); 730 if (err) 731 return err; 732 733 err = mlxsw_i2c_driver_register(&mlxsw_m_i2c_driver); 734 if (err) 735 goto err_i2c_driver_register; 736 737 return 0; 738 739 err_i2c_driver_register: 740 mlxsw_core_driver_unregister(&mlxsw_m_driver); 741 742 return err; 743 } 744 745 static void __exit mlxsw_m_module_exit(void) 746 { 747 mlxsw_i2c_driver_unregister(&mlxsw_m_i2c_driver); 748 mlxsw_core_driver_unregister(&mlxsw_m_driver); 749 } 750 751 module_init(mlxsw_m_module_init); 752 module_exit(mlxsw_m_module_exit); 753 754 MODULE_LICENSE("Dual BSD/GPL"); 755 MODULE_AUTHOR("Vadim Pasternak <vadimp@mellanox.com>"); 756 MODULE_DESCRIPTION("Mellanox minimal driver"); 757 MODULE_DEVICE_TABLE(i2c, mlxsw_m_i2c_id); 758