1 // SPDX-License-Identifier: GPL-2.0-or-later 2 #include <net/dsa.h> 3 4 #include "chip.h" 5 #include "devlink.h" 6 #include "global1.h" 7 #include "global2.h" 8 #include "port.h" 9 10 static int mv88e6xxx_atu_get_hash(struct mv88e6xxx_chip *chip, u8 *hash) 11 { 12 if (chip->info->ops->atu_get_hash) 13 return chip->info->ops->atu_get_hash(chip, hash); 14 15 return -EOPNOTSUPP; 16 } 17 18 static int mv88e6xxx_atu_set_hash(struct mv88e6xxx_chip *chip, u8 hash) 19 { 20 if (chip->info->ops->atu_set_hash) 21 return chip->info->ops->atu_set_hash(chip, hash); 22 23 return -EOPNOTSUPP; 24 } 25 26 enum mv88e6xxx_devlink_param_id { 27 MV88E6XXX_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, 28 MV88E6XXX_DEVLINK_PARAM_ID_ATU_HASH, 29 }; 30 31 int mv88e6xxx_devlink_param_get(struct dsa_switch *ds, u32 id, 32 struct devlink_param_gset_ctx *ctx) 33 { 34 struct mv88e6xxx_chip *chip = ds->priv; 35 int err; 36 37 mv88e6xxx_reg_lock(chip); 38 39 switch (id) { 40 case MV88E6XXX_DEVLINK_PARAM_ID_ATU_HASH: 41 err = mv88e6xxx_atu_get_hash(chip, &ctx->val.vu8); 42 break; 43 default: 44 err = -EOPNOTSUPP; 45 break; 46 } 47 48 mv88e6xxx_reg_unlock(chip); 49 50 return err; 51 } 52 53 int mv88e6xxx_devlink_param_set(struct dsa_switch *ds, u32 id, 54 struct devlink_param_gset_ctx *ctx) 55 { 56 struct mv88e6xxx_chip *chip = ds->priv; 57 int err; 58 59 mv88e6xxx_reg_lock(chip); 60 61 switch (id) { 62 case MV88E6XXX_DEVLINK_PARAM_ID_ATU_HASH: 63 err = mv88e6xxx_atu_set_hash(chip, ctx->val.vu8); 64 break; 65 default: 66 err = -EOPNOTSUPP; 67 break; 68 } 69 70 mv88e6xxx_reg_unlock(chip); 71 72 return err; 73 } 74 75 static const struct devlink_param mv88e6xxx_devlink_params[] = { 76 DSA_DEVLINK_PARAM_DRIVER(MV88E6XXX_DEVLINK_PARAM_ID_ATU_HASH, 77 "ATU_hash", DEVLINK_PARAM_TYPE_U8, 78 BIT(DEVLINK_PARAM_CMODE_RUNTIME)), 79 }; 80 81 int mv88e6xxx_setup_devlink_params(struct dsa_switch *ds) 82 { 83 return dsa_devlink_params_register(ds, mv88e6xxx_devlink_params, 84 ARRAY_SIZE(mv88e6xxx_devlink_params)); 85 } 86 87 void mv88e6xxx_teardown_devlink_params(struct dsa_switch *ds) 88 { 89 dsa_devlink_params_unregister(ds, mv88e6xxx_devlink_params, 90 ARRAY_SIZE(mv88e6xxx_devlink_params)); 91 } 92 93 enum mv88e6xxx_devlink_resource_id { 94 MV88E6XXX_RESOURCE_ID_ATU, 95 MV88E6XXX_RESOURCE_ID_ATU_BIN_0, 96 MV88E6XXX_RESOURCE_ID_ATU_BIN_1, 97 MV88E6XXX_RESOURCE_ID_ATU_BIN_2, 98 MV88E6XXX_RESOURCE_ID_ATU_BIN_3, 99 }; 100 101 static u64 mv88e6xxx_devlink_atu_bin_get(struct mv88e6xxx_chip *chip, 102 u16 bin) 103 { 104 u16 occupancy = 0; 105 int err; 106 107 mv88e6xxx_reg_lock(chip); 108 109 err = mv88e6xxx_g2_atu_stats_set(chip, MV88E6XXX_G2_ATU_STATS_MODE_ALL, 110 bin); 111 if (err) { 112 dev_err(chip->dev, "failed to set ATU stats kind/bin\n"); 113 goto unlock; 114 } 115 116 err = mv88e6xxx_g1_atu_get_next(chip, 0); 117 if (err) { 118 dev_err(chip->dev, "failed to perform ATU get next\n"); 119 goto unlock; 120 } 121 122 err = mv88e6xxx_g2_atu_stats_get(chip, &occupancy); 123 if (err) { 124 dev_err(chip->dev, "failed to get ATU stats\n"); 125 goto unlock; 126 } 127 128 occupancy &= MV88E6XXX_G2_ATU_STATS_MASK; 129 130 unlock: 131 mv88e6xxx_reg_unlock(chip); 132 133 return occupancy; 134 } 135 136 static u64 mv88e6xxx_devlink_atu_bin_0_get(void *priv) 137 { 138 struct mv88e6xxx_chip *chip = priv; 139 140 return mv88e6xxx_devlink_atu_bin_get(chip, 141 MV88E6XXX_G2_ATU_STATS_BIN_0); 142 } 143 144 static u64 mv88e6xxx_devlink_atu_bin_1_get(void *priv) 145 { 146 struct mv88e6xxx_chip *chip = priv; 147 148 return mv88e6xxx_devlink_atu_bin_get(chip, 149 MV88E6XXX_G2_ATU_STATS_BIN_1); 150 } 151 152 static u64 mv88e6xxx_devlink_atu_bin_2_get(void *priv) 153 { 154 struct mv88e6xxx_chip *chip = priv; 155 156 return mv88e6xxx_devlink_atu_bin_get(chip, 157 MV88E6XXX_G2_ATU_STATS_BIN_2); 158 } 159 160 static u64 mv88e6xxx_devlink_atu_bin_3_get(void *priv) 161 { 162 struct mv88e6xxx_chip *chip = priv; 163 164 return mv88e6xxx_devlink_atu_bin_get(chip, 165 MV88E6XXX_G2_ATU_STATS_BIN_3); 166 } 167 168 static u64 mv88e6xxx_devlink_atu_get(void *priv) 169 { 170 return mv88e6xxx_devlink_atu_bin_0_get(priv) + 171 mv88e6xxx_devlink_atu_bin_1_get(priv) + 172 mv88e6xxx_devlink_atu_bin_2_get(priv) + 173 mv88e6xxx_devlink_atu_bin_3_get(priv); 174 } 175 176 int mv88e6xxx_setup_devlink_resources(struct dsa_switch *ds) 177 { 178 struct devlink_resource_size_params size_params; 179 struct mv88e6xxx_chip *chip = ds->priv; 180 int err; 181 182 devlink_resource_size_params_init(&size_params, 183 mv88e6xxx_num_macs(chip), 184 mv88e6xxx_num_macs(chip), 185 1, DEVLINK_RESOURCE_UNIT_ENTRY); 186 187 err = dsa_devlink_resource_register(ds, "ATU", 188 mv88e6xxx_num_macs(chip), 189 MV88E6XXX_RESOURCE_ID_ATU, 190 DEVLINK_RESOURCE_ID_PARENT_TOP, 191 &size_params); 192 if (err) 193 goto out; 194 195 devlink_resource_size_params_init(&size_params, 196 mv88e6xxx_num_macs(chip) / 4, 197 mv88e6xxx_num_macs(chip) / 4, 198 1, DEVLINK_RESOURCE_UNIT_ENTRY); 199 200 err = dsa_devlink_resource_register(ds, "ATU_bin_0", 201 mv88e6xxx_num_macs(chip) / 4, 202 MV88E6XXX_RESOURCE_ID_ATU_BIN_0, 203 MV88E6XXX_RESOURCE_ID_ATU, 204 &size_params); 205 if (err) 206 goto out; 207 208 err = dsa_devlink_resource_register(ds, "ATU_bin_1", 209 mv88e6xxx_num_macs(chip) / 4, 210 MV88E6XXX_RESOURCE_ID_ATU_BIN_1, 211 MV88E6XXX_RESOURCE_ID_ATU, 212 &size_params); 213 if (err) 214 goto out; 215 216 err = dsa_devlink_resource_register(ds, "ATU_bin_2", 217 mv88e6xxx_num_macs(chip) / 4, 218 MV88E6XXX_RESOURCE_ID_ATU_BIN_2, 219 MV88E6XXX_RESOURCE_ID_ATU, 220 &size_params); 221 if (err) 222 goto out; 223 224 err = dsa_devlink_resource_register(ds, "ATU_bin_3", 225 mv88e6xxx_num_macs(chip) / 4, 226 MV88E6XXX_RESOURCE_ID_ATU_BIN_3, 227 MV88E6XXX_RESOURCE_ID_ATU, 228 &size_params); 229 if (err) 230 goto out; 231 232 dsa_devlink_resource_occ_get_register(ds, 233 MV88E6XXX_RESOURCE_ID_ATU, 234 mv88e6xxx_devlink_atu_get, 235 chip); 236 237 dsa_devlink_resource_occ_get_register(ds, 238 MV88E6XXX_RESOURCE_ID_ATU_BIN_0, 239 mv88e6xxx_devlink_atu_bin_0_get, 240 chip); 241 242 dsa_devlink_resource_occ_get_register(ds, 243 MV88E6XXX_RESOURCE_ID_ATU_BIN_1, 244 mv88e6xxx_devlink_atu_bin_1_get, 245 chip); 246 247 dsa_devlink_resource_occ_get_register(ds, 248 MV88E6XXX_RESOURCE_ID_ATU_BIN_2, 249 mv88e6xxx_devlink_atu_bin_2_get, 250 chip); 251 252 dsa_devlink_resource_occ_get_register(ds, 253 MV88E6XXX_RESOURCE_ID_ATU_BIN_3, 254 mv88e6xxx_devlink_atu_bin_3_get, 255 chip); 256 257 return 0; 258 259 out: 260 dsa_devlink_resources_unregister(ds); 261 return err; 262 } 263 264 static int mv88e6xxx_region_global_snapshot(struct devlink *dl, 265 const struct devlink_region_ops *ops, 266 struct netlink_ext_ack *extack, 267 u8 **data) 268 { 269 struct mv88e6xxx_region_priv *region_priv = ops->priv; 270 struct dsa_switch *ds = dsa_devlink_to_ds(dl); 271 struct mv88e6xxx_chip *chip = ds->priv; 272 u16 *registers; 273 int i, err; 274 275 registers = kmalloc_array(32, sizeof(u16), GFP_KERNEL); 276 if (!registers) 277 return -ENOMEM; 278 279 mv88e6xxx_reg_lock(chip); 280 for (i = 0; i < 32; i++) { 281 switch (region_priv->id) { 282 case MV88E6XXX_REGION_GLOBAL1: 283 err = mv88e6xxx_g1_read(chip, i, ®isters[i]); 284 break; 285 case MV88E6XXX_REGION_GLOBAL2: 286 err = mv88e6xxx_g2_read(chip, i, ®isters[i]); 287 break; 288 default: 289 err = -EOPNOTSUPP; 290 } 291 292 if (err) { 293 kfree(registers); 294 goto out; 295 } 296 } 297 *data = (u8 *)registers; 298 out: 299 mv88e6xxx_reg_unlock(chip); 300 301 return err; 302 } 303 304 /* The ATU entry varies between mv88e6xxx chipset generations. Define 305 * a generic format which covers all the current and hopefully future 306 * mv88e6xxx generations 307 */ 308 309 struct mv88e6xxx_devlink_atu_entry { 310 /* The FID is scattered over multiple registers. */ 311 u16 fid; 312 u16 atu_op; 313 u16 atu_data; 314 u16 atu_01; 315 u16 atu_23; 316 u16 atu_45; 317 }; 318 319 static int mv88e6xxx_region_atu_snapshot_fid(struct mv88e6xxx_chip *chip, 320 int fid, 321 struct mv88e6xxx_devlink_atu_entry *table, 322 int *count) 323 { 324 u16 atu_op, atu_data, atu_01, atu_23, atu_45; 325 struct mv88e6xxx_atu_entry addr; 326 int err; 327 328 addr.state = 0; 329 eth_broadcast_addr(addr.mac); 330 331 do { 332 err = mv88e6xxx_g1_atu_getnext(chip, fid, &addr); 333 if (err) 334 return err; 335 336 if (!addr.state) 337 break; 338 339 err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_ATU_OP, &atu_op); 340 if (err) 341 return err; 342 343 err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_ATU_DATA, &atu_data); 344 if (err) 345 return err; 346 347 err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_ATU_MAC01, &atu_01); 348 if (err) 349 return err; 350 351 err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_ATU_MAC23, &atu_23); 352 if (err) 353 return err; 354 355 err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_ATU_MAC45, &atu_45); 356 if (err) 357 return err; 358 359 table[*count].fid = fid; 360 table[*count].atu_op = atu_op; 361 table[*count].atu_data = atu_data; 362 table[*count].atu_01 = atu_01; 363 table[*count].atu_23 = atu_23; 364 table[*count].atu_45 = atu_45; 365 (*count)++; 366 } while (!is_broadcast_ether_addr(addr.mac)); 367 368 return 0; 369 } 370 371 static int mv88e6xxx_region_atu_snapshot(struct devlink *dl, 372 const struct devlink_region_ops *ops, 373 struct netlink_ext_ack *extack, 374 u8 **data) 375 { 376 struct dsa_switch *ds = dsa_devlink_to_ds(dl); 377 struct mv88e6xxx_devlink_atu_entry *table; 378 struct mv88e6xxx_chip *chip = ds->priv; 379 int fid = -1, err = 0, count = 0; 380 381 table = kzalloc_objs(struct mv88e6xxx_devlink_atu_entry, 382 mv88e6xxx_num_databases(chip)); 383 if (!table) 384 return -ENOMEM; 385 386 mv88e6xxx_reg_lock(chip); 387 388 while (1) { 389 fid = find_next_bit(chip->fid_bitmap, MV88E6XXX_N_FID, fid + 1); 390 if (fid == MV88E6XXX_N_FID) 391 break; 392 393 err = mv88e6xxx_region_atu_snapshot_fid(chip, fid, table, 394 &count); 395 if (err) { 396 kfree(table); 397 goto out; 398 } 399 } 400 *data = (u8 *)table; 401 out: 402 mv88e6xxx_reg_unlock(chip); 403 404 return err; 405 } 406 407 /** 408 * struct mv88e6xxx_devlink_vtu_entry - Devlink VTU entry 409 * @fid: Global1/2: FID and VLAN policy. 410 * @sid: Global1/3: SID, unknown filters and learning. 411 * @op: Global1/5: FID (old chipsets). 412 * @vid: Global1/6: VID, valid, and page. 413 * @data: Global1/7-9: Membership data and priority override. 414 * @resvd: Reserved. Also happens to align the size to 16B. 415 * 416 * The VTU entry format varies between chipset generations, the 417 * descriptions above represent the superset of all possible 418 * information, not all fields are valid on all devices. Since this is 419 * a low-level debug interface, copy all data verbatim and defer 420 * parsing to the consumer. 421 */ 422 struct mv88e6xxx_devlink_vtu_entry { 423 u16 fid; 424 u16 sid; 425 u16 op; 426 u16 vid; 427 u16 data[3]; 428 u16 resvd; 429 }; 430 431 static int mv88e6xxx_region_vtu_snapshot(struct devlink *dl, 432 const struct devlink_region_ops *ops, 433 struct netlink_ext_ack *extack, 434 u8 **data) 435 { 436 struct mv88e6xxx_devlink_vtu_entry *table, *entry; 437 struct dsa_switch *ds = dsa_devlink_to_ds(dl); 438 struct mv88e6xxx_chip *chip = ds->priv; 439 struct mv88e6xxx_vtu_entry vlan; 440 int err; 441 442 table = kzalloc_objs(struct mv88e6xxx_devlink_vtu_entry, 443 mv88e6xxx_max_vid(chip) + 1); 444 if (!table) 445 return -ENOMEM; 446 447 entry = table; 448 vlan.vid = mv88e6xxx_max_vid(chip); 449 vlan.valid = false; 450 451 mv88e6xxx_reg_lock(chip); 452 453 do { 454 err = mv88e6xxx_g1_vtu_getnext(chip, &vlan); 455 if (err) 456 break; 457 458 if (!vlan.valid) 459 break; 460 461 err = err ? : mv88e6xxx_g1_read(chip, MV88E6352_G1_VTU_FID, 462 &entry->fid); 463 err = err ? : mv88e6xxx_g1_read(chip, MV88E6352_G1_VTU_SID, 464 &entry->sid); 465 err = err ? : mv88e6xxx_g1_read(chip, MV88E6XXX_G1_VTU_OP, 466 &entry->op); 467 err = err ? : mv88e6xxx_g1_read(chip, MV88E6XXX_G1_VTU_VID, 468 &entry->vid); 469 err = err ? : mv88e6xxx_g1_read(chip, MV88E6XXX_G1_VTU_DATA1, 470 &entry->data[0]); 471 err = err ? : mv88e6xxx_g1_read(chip, MV88E6XXX_G1_VTU_DATA2, 472 &entry->data[1]); 473 err = err ? : mv88e6xxx_g1_read(chip, MV88E6XXX_G1_VTU_DATA3, 474 &entry->data[2]); 475 if (err) 476 break; 477 478 entry++; 479 } while (vlan.vid < mv88e6xxx_max_vid(chip)); 480 481 mv88e6xxx_reg_unlock(chip); 482 483 if (err) { 484 kfree(table); 485 return err; 486 } 487 488 *data = (u8 *)table; 489 return 0; 490 } 491 492 /** 493 * struct mv88e6xxx_devlink_stu_entry - Devlink STU entry 494 * @sid: Global1/3: SID, unknown filters and learning. 495 * @vid: Global1/6: Valid bit. 496 * @data: Global1/7-9: Membership data and priority override. 497 * @resvd: Reserved. In case we forgot something. 498 * 499 * The STU entry format varies between chipset generations. Peridot 500 * and Amethyst packs the STU data into Global1/7-8. Older silicon 501 * spreads the information across all three VTU data registers - 502 * inheriting the layout of even older hardware that had no STU at 503 * all. Since this is a low-level debug interface, copy all data 504 * verbatim and defer parsing to the consumer. 505 */ 506 struct mv88e6xxx_devlink_stu_entry { 507 u16 sid; 508 u16 vid; 509 u16 data[3]; 510 u16 resvd; 511 }; 512 513 static int mv88e6xxx_region_stu_snapshot(struct devlink *dl, 514 const struct devlink_region_ops *ops, 515 struct netlink_ext_ack *extack, 516 u8 **data) 517 { 518 struct mv88e6xxx_devlink_stu_entry *table, *entry; 519 struct dsa_switch *ds = dsa_devlink_to_ds(dl); 520 struct mv88e6xxx_chip *chip = ds->priv; 521 struct mv88e6xxx_stu_entry stu; 522 int err; 523 524 table = kzalloc_objs(struct mv88e6xxx_devlink_stu_entry, 525 mv88e6xxx_max_sid(chip) + 1); 526 if (!table) 527 return -ENOMEM; 528 529 entry = table; 530 stu.sid = mv88e6xxx_max_sid(chip); 531 stu.valid = false; 532 533 mv88e6xxx_reg_lock(chip); 534 535 do { 536 err = mv88e6xxx_g1_stu_getnext(chip, &stu); 537 if (err) 538 break; 539 540 if (!stu.valid) 541 break; 542 543 err = err ? : mv88e6xxx_g1_read(chip, MV88E6352_G1_VTU_SID, 544 &entry->sid); 545 err = err ? : mv88e6xxx_g1_read(chip, MV88E6XXX_G1_VTU_VID, 546 &entry->vid); 547 err = err ? : mv88e6xxx_g1_read(chip, MV88E6XXX_G1_VTU_DATA1, 548 &entry->data[0]); 549 err = err ? : mv88e6xxx_g1_read(chip, MV88E6XXX_G1_VTU_DATA2, 550 &entry->data[1]); 551 err = err ? : mv88e6xxx_g1_read(chip, MV88E6XXX_G1_VTU_DATA3, 552 &entry->data[2]); 553 if (err) 554 break; 555 556 entry++; 557 } while (stu.sid < mv88e6xxx_max_sid(chip)); 558 559 mv88e6xxx_reg_unlock(chip); 560 561 if (err) { 562 kfree(table); 563 return err; 564 } 565 566 *data = (u8 *)table; 567 return 0; 568 } 569 570 static int mv88e6xxx_region_pvt_snapshot(struct devlink *dl, 571 const struct devlink_region_ops *ops, 572 struct netlink_ext_ack *extack, 573 u8 **data) 574 { 575 struct dsa_switch *ds = dsa_devlink_to_ds(dl); 576 struct mv88e6xxx_chip *chip = ds->priv; 577 int dev, port, err; 578 u16 *pvt, *cur; 579 580 pvt = kcalloc(MV88E6XXX_MAX_PVT_ENTRIES, sizeof(*pvt), GFP_KERNEL); 581 if (!pvt) 582 return -ENOMEM; 583 584 mv88e6xxx_reg_lock(chip); 585 586 cur = pvt; 587 for (dev = 0; dev < MV88E6XXX_MAX_PVT_SWITCHES; dev++) { 588 for (port = 0; port < MV88E6XXX_MAX_PVT_PORTS; port++) { 589 err = mv88e6xxx_g2_pvt_read(chip, dev, port, cur); 590 if (err) 591 break; 592 593 cur++; 594 } 595 } 596 597 mv88e6xxx_reg_unlock(chip); 598 599 if (err) { 600 kfree(pvt); 601 return err; 602 } 603 604 *data = (u8 *)pvt; 605 return 0; 606 } 607 608 static int mv88e6xxx_region_port_snapshot(struct devlink_port *devlink_port, 609 const struct devlink_port_region_ops *ops, 610 struct netlink_ext_ack *extack, 611 u8 **data) 612 { 613 struct dsa_switch *ds = dsa_devlink_port_to_ds(devlink_port); 614 int port = dsa_devlink_port_to_port(devlink_port); 615 struct mv88e6xxx_chip *chip = ds->priv; 616 u16 *registers; 617 int i, err; 618 619 registers = kmalloc_array(32, sizeof(u16), GFP_KERNEL); 620 if (!registers) 621 return -ENOMEM; 622 623 mv88e6xxx_reg_lock(chip); 624 for (i = 0; i < 32; i++) { 625 err = mv88e6xxx_port_read(chip, port, i, ®isters[i]); 626 if (err) { 627 kfree(registers); 628 goto out; 629 } 630 } 631 *data = (u8 *)registers; 632 out: 633 mv88e6xxx_reg_unlock(chip); 634 635 return err; 636 } 637 638 static struct mv88e6xxx_region_priv mv88e6xxx_region_global1_priv = { 639 .id = MV88E6XXX_REGION_GLOBAL1, 640 }; 641 642 static const struct devlink_region_ops mv88e6xxx_region_global1_ops = { 643 .name = "global1", 644 .snapshot = mv88e6xxx_region_global_snapshot, 645 .destructor = kfree, 646 .priv = &mv88e6xxx_region_global1_priv, 647 }; 648 649 static struct mv88e6xxx_region_priv mv88e6xxx_region_global2_priv = { 650 .id = MV88E6XXX_REGION_GLOBAL2, 651 }; 652 653 static const struct devlink_region_ops mv88e6xxx_region_global2_ops = { 654 .name = "global2", 655 .snapshot = mv88e6xxx_region_global_snapshot, 656 .destructor = kfree, 657 .priv = &mv88e6xxx_region_global2_priv, 658 }; 659 660 static const struct devlink_region_ops mv88e6xxx_region_atu_ops = { 661 .name = "atu", 662 .snapshot = mv88e6xxx_region_atu_snapshot, 663 .destructor = kfree, 664 }; 665 666 static const struct devlink_region_ops mv88e6xxx_region_vtu_ops = { 667 .name = "vtu", 668 .snapshot = mv88e6xxx_region_vtu_snapshot, 669 .destructor = kfree, 670 }; 671 672 static const struct devlink_region_ops mv88e6xxx_region_stu_ops = { 673 .name = "stu", 674 .snapshot = mv88e6xxx_region_stu_snapshot, 675 .destructor = kfree, 676 }; 677 678 static const struct devlink_region_ops mv88e6xxx_region_pvt_ops = { 679 .name = "pvt", 680 .snapshot = mv88e6xxx_region_pvt_snapshot, 681 .destructor = kfree, 682 }; 683 684 static const struct devlink_port_region_ops mv88e6xxx_region_port_ops = { 685 .name = "port", 686 .snapshot = mv88e6xxx_region_port_snapshot, 687 .destructor = kfree, 688 }; 689 690 struct mv88e6xxx_region { 691 const struct devlink_region_ops *ops; 692 u64 size; 693 694 bool (*cond)(struct mv88e6xxx_chip *chip); 695 }; 696 697 static const struct mv88e6xxx_region mv88e6xxx_regions[] = { 698 [MV88E6XXX_REGION_GLOBAL1] = { 699 .ops = &mv88e6xxx_region_global1_ops, 700 .size = 32 * sizeof(u16) 701 }, 702 [MV88E6XXX_REGION_GLOBAL2] = { 703 .ops = &mv88e6xxx_region_global2_ops, 704 .size = 32 * sizeof(u16) }, 705 [MV88E6XXX_REGION_ATU] = { 706 .ops = &mv88e6xxx_region_atu_ops 707 /* calculated at runtime */ 708 }, 709 [MV88E6XXX_REGION_VTU] = { 710 .ops = &mv88e6xxx_region_vtu_ops 711 /* calculated at runtime */ 712 }, 713 [MV88E6XXX_REGION_STU] = { 714 .ops = &mv88e6xxx_region_stu_ops, 715 .cond = mv88e6xxx_has_stu, 716 /* calculated at runtime */ 717 }, 718 [MV88E6XXX_REGION_PVT] = { 719 .ops = &mv88e6xxx_region_pvt_ops, 720 .size = MV88E6XXX_MAX_PVT_ENTRIES * sizeof(u16), 721 .cond = mv88e6xxx_has_pvt, 722 }, 723 }; 724 725 void mv88e6xxx_teardown_devlink_regions_global(struct dsa_switch *ds) 726 { 727 struct mv88e6xxx_chip *chip = ds->priv; 728 int i; 729 730 for (i = 0; i < ARRAY_SIZE(mv88e6xxx_regions); i++) 731 if (chip->regions[i]) 732 dsa_devlink_region_destroy(chip->regions[i]); 733 } 734 735 void mv88e6xxx_teardown_devlink_regions_port(struct dsa_switch *ds, int port) 736 { 737 struct mv88e6xxx_chip *chip = ds->priv; 738 739 dsa_devlink_region_destroy(chip->ports[port].region); 740 } 741 742 int mv88e6xxx_setup_devlink_regions_port(struct dsa_switch *ds, int port) 743 { 744 struct mv88e6xxx_chip *chip = ds->priv; 745 struct devlink_region *region; 746 747 region = dsa_devlink_port_region_create(ds, 748 port, 749 &mv88e6xxx_region_port_ops, 1, 750 32 * sizeof(u16)); 751 if (IS_ERR(region)) 752 return PTR_ERR(region); 753 754 chip->ports[port].region = region; 755 756 return 0; 757 } 758 759 int mv88e6xxx_setup_devlink_regions_global(struct dsa_switch *ds) 760 { 761 bool (*cond)(struct mv88e6xxx_chip *chip); 762 struct mv88e6xxx_chip *chip = ds->priv; 763 const struct devlink_region_ops *ops; 764 struct devlink_region *region; 765 u64 size; 766 int i, j; 767 768 for (i = 0; i < ARRAY_SIZE(mv88e6xxx_regions); i++) { 769 ops = mv88e6xxx_regions[i].ops; 770 size = mv88e6xxx_regions[i].size; 771 cond = mv88e6xxx_regions[i].cond; 772 773 if (cond && !cond(chip)) 774 continue; 775 776 switch (i) { 777 case MV88E6XXX_REGION_ATU: 778 size = mv88e6xxx_num_databases(chip) * 779 sizeof(struct mv88e6xxx_devlink_atu_entry); 780 break; 781 case MV88E6XXX_REGION_VTU: 782 size = (mv88e6xxx_max_vid(chip) + 1) * 783 sizeof(struct mv88e6xxx_devlink_vtu_entry); 784 break; 785 case MV88E6XXX_REGION_STU: 786 size = (mv88e6xxx_max_sid(chip) + 1) * 787 sizeof(struct mv88e6xxx_devlink_stu_entry); 788 break; 789 } 790 791 region = dsa_devlink_region_create(ds, ops, 1, size); 792 if (IS_ERR(region)) 793 goto out; 794 chip->regions[i] = region; 795 } 796 return 0; 797 798 out: 799 for (j = 0; j < i; j++) 800 dsa_devlink_region_destroy(chip->regions[j]); 801 802 return PTR_ERR(region); 803 } 804 805 int mv88e6xxx_devlink_info_get(struct dsa_switch *ds, 806 struct devlink_info_req *req, 807 struct netlink_ext_ack *extack) 808 { 809 struct mv88e6xxx_chip *chip = ds->priv; 810 811 return devlink_info_version_fixed_put(req, 812 DEVLINK_INFO_VERSION_GENERIC_ASIC_ID, 813 chip->info->name); 814 } 815