1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright 2019 NXP Semiconductors 3 */ 4 #include <uapi/linux/if_bridge.h> 5 #include <soc/mscc/ocelot_qsys.h> 6 #include <soc/mscc/ocelot_sys.h> 7 #include <soc/mscc/ocelot_dev.h> 8 #include <soc/mscc/ocelot_ana.h> 9 #include <soc/mscc/ocelot.h> 10 #include <linux/packing.h> 11 #include <linux/module.h> 12 #include <linux/of_net.h> 13 #include <linux/pci.h> 14 #include <linux/of.h> 15 #include <net/dsa.h> 16 #include "felix.h" 17 18 static enum dsa_tag_protocol felix_get_tag_protocol(struct dsa_switch *ds, 19 int port, 20 enum dsa_tag_protocol mp) 21 { 22 return DSA_TAG_PROTO_OCELOT; 23 } 24 25 static int felix_set_ageing_time(struct dsa_switch *ds, 26 unsigned int ageing_time) 27 { 28 struct ocelot *ocelot = ds->priv; 29 30 ocelot_set_ageing_time(ocelot, ageing_time); 31 32 return 0; 33 } 34 35 static int felix_fdb_dump(struct dsa_switch *ds, int port, 36 dsa_fdb_dump_cb_t *cb, void *data) 37 { 38 struct ocelot *ocelot = ds->priv; 39 40 return ocelot_fdb_dump(ocelot, port, cb, data); 41 } 42 43 static int felix_fdb_add(struct dsa_switch *ds, int port, 44 const unsigned char *addr, u16 vid) 45 { 46 struct ocelot *ocelot = ds->priv; 47 bool vlan_aware; 48 49 vlan_aware = dsa_port_is_vlan_filtering(dsa_to_port(ds, port)); 50 51 return ocelot_fdb_add(ocelot, port, addr, vid, vlan_aware); 52 } 53 54 static int felix_fdb_del(struct dsa_switch *ds, int port, 55 const unsigned char *addr, u16 vid) 56 { 57 struct ocelot *ocelot = ds->priv; 58 59 return ocelot_fdb_del(ocelot, port, addr, vid); 60 } 61 62 static void felix_bridge_stp_state_set(struct dsa_switch *ds, int port, 63 u8 state) 64 { 65 struct ocelot *ocelot = ds->priv; 66 67 return ocelot_bridge_stp_state_set(ocelot, port, state); 68 } 69 70 static int felix_bridge_join(struct dsa_switch *ds, int port, 71 struct net_device *br) 72 { 73 struct ocelot *ocelot = ds->priv; 74 75 return ocelot_port_bridge_join(ocelot, port, br); 76 } 77 78 static void felix_bridge_leave(struct dsa_switch *ds, int port, 79 struct net_device *br) 80 { 81 struct ocelot *ocelot = ds->priv; 82 83 ocelot_port_bridge_leave(ocelot, port, br); 84 } 85 86 /* This callback needs to be present */ 87 static int felix_vlan_prepare(struct dsa_switch *ds, int port, 88 const struct switchdev_obj_port_vlan *vlan) 89 { 90 return 0; 91 } 92 93 static int felix_vlan_filtering(struct dsa_switch *ds, int port, bool enabled) 94 { 95 struct ocelot *ocelot = ds->priv; 96 97 ocelot_port_vlan_filtering(ocelot, port, enabled); 98 99 return 0; 100 } 101 102 static void felix_vlan_add(struct dsa_switch *ds, int port, 103 const struct switchdev_obj_port_vlan *vlan) 104 { 105 struct ocelot *ocelot = ds->priv; 106 u16 vid; 107 int err; 108 109 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) { 110 err = ocelot_vlan_add(ocelot, port, vid, 111 vlan->flags & BRIDGE_VLAN_INFO_PVID, 112 vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED); 113 if (err) { 114 dev_err(ds->dev, "Failed to add VLAN %d to port %d: %d\n", 115 vid, port, err); 116 return; 117 } 118 } 119 } 120 121 static int felix_vlan_del(struct dsa_switch *ds, int port, 122 const struct switchdev_obj_port_vlan *vlan) 123 { 124 struct ocelot *ocelot = ds->priv; 125 u16 vid; 126 int err; 127 128 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) { 129 err = ocelot_vlan_del(ocelot, port, vid); 130 if (err) { 131 dev_err(ds->dev, "Failed to remove VLAN %d from port %d: %d\n", 132 vid, port, err); 133 return err; 134 } 135 } 136 return 0; 137 } 138 139 static int felix_port_enable(struct dsa_switch *ds, int port, 140 struct phy_device *phy) 141 { 142 struct ocelot *ocelot = ds->priv; 143 144 ocelot_port_enable(ocelot, port, phy); 145 146 return 0; 147 } 148 149 static void felix_port_disable(struct dsa_switch *ds, int port) 150 { 151 struct ocelot *ocelot = ds->priv; 152 153 return ocelot_port_disable(ocelot, port); 154 } 155 156 static void felix_phylink_validate(struct dsa_switch *ds, int port, 157 unsigned long *supported, 158 struct phylink_link_state *state) 159 { 160 struct ocelot *ocelot = ds->priv; 161 struct ocelot_port *ocelot_port = ocelot->ports[port]; 162 __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, }; 163 164 if (state->interface != PHY_INTERFACE_MODE_NA && 165 state->interface != ocelot_port->phy_mode) { 166 bitmap_zero(supported, __ETHTOOL_LINK_MODE_MASK_NBITS); 167 return; 168 } 169 170 /* No half-duplex. */ 171 phylink_set_port_modes(mask); 172 phylink_set(mask, Autoneg); 173 phylink_set(mask, Pause); 174 phylink_set(mask, Asym_Pause); 175 phylink_set(mask, 10baseT_Full); 176 phylink_set(mask, 100baseT_Full); 177 phylink_set(mask, 1000baseT_Full); 178 179 if (state->interface == PHY_INTERFACE_MODE_INTERNAL || 180 state->interface == PHY_INTERFACE_MODE_2500BASEX || 181 state->interface == PHY_INTERFACE_MODE_USXGMII) { 182 phylink_set(mask, 2500baseT_Full); 183 phylink_set(mask, 2500baseX_Full); 184 } 185 186 bitmap_and(supported, supported, mask, 187 __ETHTOOL_LINK_MODE_MASK_NBITS); 188 bitmap_and(state->advertising, state->advertising, mask, 189 __ETHTOOL_LINK_MODE_MASK_NBITS); 190 } 191 192 static int felix_phylink_mac_pcs_get_state(struct dsa_switch *ds, int port, 193 struct phylink_link_state *state) 194 { 195 struct ocelot *ocelot = ds->priv; 196 struct felix *felix = ocelot_to_felix(ocelot); 197 198 if (felix->info->pcs_link_state) 199 felix->info->pcs_link_state(ocelot, port, state); 200 201 return 0; 202 } 203 204 static void felix_phylink_mac_config(struct dsa_switch *ds, int port, 205 unsigned int link_an_mode, 206 const struct phylink_link_state *state) 207 { 208 struct ocelot *ocelot = ds->priv; 209 struct ocelot_port *ocelot_port = ocelot->ports[port]; 210 struct felix *felix = ocelot_to_felix(ocelot); 211 u32 mac_fc_cfg; 212 213 /* Take port out of reset by clearing the MAC_TX_RST, MAC_RX_RST and 214 * PORT_RST bits in CLOCK_CFG 215 */ 216 ocelot_port_writel(ocelot_port, DEV_CLOCK_CFG_LINK_SPEED(state->speed), 217 DEV_CLOCK_CFG); 218 219 /* Flow control. Link speed is only used here to evaluate the time 220 * specification in incoming pause frames. 221 */ 222 mac_fc_cfg = SYS_MAC_FC_CFG_FC_LINK_SPEED(state->speed); 223 224 /* handle Rx pause in all cases, with 2500base-X this is used for rate 225 * adaptation. 226 */ 227 mac_fc_cfg |= SYS_MAC_FC_CFG_RX_FC_ENA; 228 229 if (state->pause & MLO_PAUSE_TX) 230 mac_fc_cfg |= SYS_MAC_FC_CFG_TX_FC_ENA | 231 SYS_MAC_FC_CFG_PAUSE_VAL_CFG(0xffff) | 232 SYS_MAC_FC_CFG_FC_LATENCY_CFG(0x7) | 233 SYS_MAC_FC_CFG_ZERO_PAUSE_ENA; 234 ocelot_write_rix(ocelot, mac_fc_cfg, SYS_MAC_FC_CFG, port); 235 236 ocelot_write_rix(ocelot, 0, ANA_POL_FLOWC, port); 237 238 if (felix->info->pcs_init) 239 felix->info->pcs_init(ocelot, port, link_an_mode, state); 240 } 241 242 static void felix_phylink_mac_an_restart(struct dsa_switch *ds, int port) 243 { 244 struct ocelot *ocelot = ds->priv; 245 struct felix *felix = ocelot_to_felix(ocelot); 246 247 if (felix->info->pcs_an_restart) 248 felix->info->pcs_an_restart(ocelot, port); 249 } 250 251 static void felix_phylink_mac_link_down(struct dsa_switch *ds, int port, 252 unsigned int link_an_mode, 253 phy_interface_t interface) 254 { 255 struct ocelot *ocelot = ds->priv; 256 struct ocelot_port *ocelot_port = ocelot->ports[port]; 257 258 ocelot_port_writel(ocelot_port, 0, DEV_MAC_ENA_CFG); 259 ocelot_rmw_rix(ocelot, 0, QSYS_SWITCH_PORT_MODE_PORT_ENA, 260 QSYS_SWITCH_PORT_MODE, port); 261 } 262 263 static void felix_phylink_mac_link_up(struct dsa_switch *ds, int port, 264 unsigned int link_an_mode, 265 phy_interface_t interface, 266 struct phy_device *phydev, 267 int speed, int duplex, 268 bool tx_pause, bool rx_pause) 269 { 270 struct ocelot *ocelot = ds->priv; 271 struct ocelot_port *ocelot_port = ocelot->ports[port]; 272 273 /* Enable MAC module */ 274 ocelot_port_writel(ocelot_port, DEV_MAC_ENA_CFG_RX_ENA | 275 DEV_MAC_ENA_CFG_TX_ENA, DEV_MAC_ENA_CFG); 276 277 /* Enable receiving frames on the port, and activate auto-learning of 278 * MAC addresses. 279 */ 280 ocelot_write_gix(ocelot, ANA_PORT_PORT_CFG_LEARNAUTO | 281 ANA_PORT_PORT_CFG_RECV_ENA | 282 ANA_PORT_PORT_CFG_PORTID_VAL(port), 283 ANA_PORT_PORT_CFG, port); 284 285 /* Core: Enable port for frame transfer */ 286 ocelot_write_rix(ocelot, QSYS_SWITCH_PORT_MODE_INGRESS_DROP_MODE | 287 QSYS_SWITCH_PORT_MODE_SCH_NEXT_CFG(1) | 288 QSYS_SWITCH_PORT_MODE_PORT_ENA, 289 QSYS_SWITCH_PORT_MODE, port); 290 } 291 292 static void felix_get_strings(struct dsa_switch *ds, int port, 293 u32 stringset, u8 *data) 294 { 295 struct ocelot *ocelot = ds->priv; 296 297 return ocelot_get_strings(ocelot, port, stringset, data); 298 } 299 300 static void felix_get_ethtool_stats(struct dsa_switch *ds, int port, u64 *data) 301 { 302 struct ocelot *ocelot = ds->priv; 303 304 ocelot_get_ethtool_stats(ocelot, port, data); 305 } 306 307 static int felix_get_sset_count(struct dsa_switch *ds, int port, int sset) 308 { 309 struct ocelot *ocelot = ds->priv; 310 311 return ocelot_get_sset_count(ocelot, port, sset); 312 } 313 314 static int felix_get_ts_info(struct dsa_switch *ds, int port, 315 struct ethtool_ts_info *info) 316 { 317 struct ocelot *ocelot = ds->priv; 318 319 return ocelot_get_ts_info(ocelot, port, info); 320 } 321 322 static int felix_parse_ports_node(struct felix *felix, 323 struct device_node *ports_node, 324 phy_interface_t *port_phy_modes) 325 { 326 struct ocelot *ocelot = &felix->ocelot; 327 struct device *dev = felix->ocelot.dev; 328 struct device_node *child; 329 330 for_each_available_child_of_node(ports_node, child) { 331 phy_interface_t phy_mode; 332 u32 port; 333 int err; 334 335 /* Get switch port number from DT */ 336 if (of_property_read_u32(child, "reg", &port) < 0) { 337 dev_err(dev, "Port number not defined in device tree " 338 "(property \"reg\")\n"); 339 of_node_put(child); 340 return -ENODEV; 341 } 342 343 /* Get PHY mode from DT */ 344 err = of_get_phy_mode(child, &phy_mode); 345 if (err) { 346 dev_err(dev, "Failed to read phy-mode or " 347 "phy-interface-type property for port %d\n", 348 port); 349 of_node_put(child); 350 return -ENODEV; 351 } 352 353 err = felix->info->prevalidate_phy_mode(ocelot, port, phy_mode); 354 if (err < 0) { 355 dev_err(dev, "Unsupported PHY mode %s on port %d\n", 356 phy_modes(phy_mode), port); 357 return err; 358 } 359 360 port_phy_modes[port] = phy_mode; 361 } 362 363 return 0; 364 } 365 366 static int felix_parse_dt(struct felix *felix, phy_interface_t *port_phy_modes) 367 { 368 struct device *dev = felix->ocelot.dev; 369 struct device_node *switch_node; 370 struct device_node *ports_node; 371 int err; 372 373 switch_node = dev->of_node; 374 375 ports_node = of_get_child_by_name(switch_node, "ports"); 376 if (!ports_node) { 377 dev_err(dev, "Incorrect bindings: absent \"ports\" node\n"); 378 return -ENODEV; 379 } 380 381 err = felix_parse_ports_node(felix, ports_node, port_phy_modes); 382 of_node_put(ports_node); 383 384 return err; 385 } 386 387 static int felix_init_structs(struct felix *felix, int num_phys_ports) 388 { 389 struct ocelot *ocelot = &felix->ocelot; 390 phy_interface_t *port_phy_modes; 391 resource_size_t switch_base; 392 int port, i, err; 393 394 ocelot->num_phys_ports = num_phys_ports; 395 ocelot->ports = devm_kcalloc(ocelot->dev, num_phys_ports, 396 sizeof(struct ocelot_port *), GFP_KERNEL); 397 if (!ocelot->ports) 398 return -ENOMEM; 399 400 ocelot->map = felix->info->map; 401 ocelot->stats_layout = felix->info->stats_layout; 402 ocelot->num_stats = felix->info->num_stats; 403 ocelot->shared_queue_sz = felix->info->shared_queue_sz; 404 ocelot->ops = felix->info->ops; 405 406 port_phy_modes = kcalloc(num_phys_ports, sizeof(phy_interface_t), 407 GFP_KERNEL); 408 if (!port_phy_modes) 409 return -ENOMEM; 410 411 err = felix_parse_dt(felix, port_phy_modes); 412 if (err) { 413 kfree(port_phy_modes); 414 return err; 415 } 416 417 switch_base = pci_resource_start(felix->pdev, 418 felix->info->switch_pci_bar); 419 420 for (i = 0; i < TARGET_MAX; i++) { 421 struct regmap *target; 422 struct resource *res; 423 424 if (!felix->info->target_io_res[i].name) 425 continue; 426 427 res = &felix->info->target_io_res[i]; 428 res->flags = IORESOURCE_MEM; 429 res->start += switch_base; 430 res->end += switch_base; 431 432 target = ocelot_regmap_init(ocelot, res); 433 if (IS_ERR(target)) { 434 dev_err(ocelot->dev, 435 "Failed to map device memory space\n"); 436 kfree(port_phy_modes); 437 return PTR_ERR(target); 438 } 439 440 ocelot->targets[i] = target; 441 } 442 443 err = ocelot_regfields_init(ocelot, felix->info->regfields); 444 if (err) { 445 dev_err(ocelot->dev, "failed to init reg fields map\n"); 446 kfree(port_phy_modes); 447 return err; 448 } 449 450 for (port = 0; port < num_phys_ports; port++) { 451 struct ocelot_port *ocelot_port; 452 void __iomem *port_regs; 453 struct resource *res; 454 455 ocelot_port = devm_kzalloc(ocelot->dev, 456 sizeof(struct ocelot_port), 457 GFP_KERNEL); 458 if (!ocelot_port) { 459 dev_err(ocelot->dev, 460 "failed to allocate port memory\n"); 461 kfree(port_phy_modes); 462 return -ENOMEM; 463 } 464 465 res = &felix->info->port_io_res[port]; 466 res->flags = IORESOURCE_MEM; 467 res->start += switch_base; 468 res->end += switch_base; 469 470 port_regs = devm_ioremap_resource(ocelot->dev, res); 471 if (IS_ERR(port_regs)) { 472 dev_err(ocelot->dev, 473 "failed to map registers for port %d\n", port); 474 kfree(port_phy_modes); 475 return PTR_ERR(port_regs); 476 } 477 478 ocelot_port->phy_mode = port_phy_modes[port]; 479 ocelot_port->ocelot = ocelot; 480 ocelot_port->regs = port_regs; 481 ocelot->ports[port] = ocelot_port; 482 } 483 484 kfree(port_phy_modes); 485 486 if (felix->info->mdio_bus_alloc) { 487 err = felix->info->mdio_bus_alloc(ocelot); 488 if (err < 0) 489 return err; 490 } 491 492 return 0; 493 } 494 495 /* Hardware initialization done here so that we can allocate structures with 496 * devm without fear of dsa_register_switch returning -EPROBE_DEFER and causing 497 * us to allocate structures twice (leak memory) and map PCI memory twice 498 * (which will not work). 499 */ 500 static int felix_setup(struct dsa_switch *ds) 501 { 502 struct ocelot *ocelot = ds->priv; 503 struct felix *felix = ocelot_to_felix(ocelot); 504 int port, err; 505 506 err = felix_init_structs(felix, ds->num_ports); 507 if (err) 508 return err; 509 510 ocelot_init(ocelot); 511 512 for (port = 0; port < ds->num_ports; port++) { 513 ocelot_init_port(ocelot, port); 514 515 if (dsa_is_cpu_port(ds, port)) 516 ocelot_set_cpu_port(ocelot, port, 517 OCELOT_TAG_PREFIX_NONE, 518 OCELOT_TAG_PREFIX_LONG); 519 } 520 521 /* It looks like the MAC/PCS interrupt register - PM0_IEVENT (0x8040) 522 * isn't instantiated for the Felix PF. 523 * In-band AN may take a few ms to complete, so we need to poll. 524 */ 525 ds->pcs_poll = true; 526 527 return 0; 528 } 529 530 static void felix_teardown(struct dsa_switch *ds) 531 { 532 struct ocelot *ocelot = ds->priv; 533 struct felix *felix = ocelot_to_felix(ocelot); 534 535 if (felix->info->mdio_bus_free) 536 felix->info->mdio_bus_free(ocelot); 537 538 /* stop workqueue thread */ 539 ocelot_deinit(ocelot); 540 } 541 542 static int felix_hwtstamp_get(struct dsa_switch *ds, int port, 543 struct ifreq *ifr) 544 { 545 struct ocelot *ocelot = ds->priv; 546 547 return ocelot_hwstamp_get(ocelot, port, ifr); 548 } 549 550 static int felix_hwtstamp_set(struct dsa_switch *ds, int port, 551 struct ifreq *ifr) 552 { 553 struct ocelot *ocelot = ds->priv; 554 555 return ocelot_hwstamp_set(ocelot, port, ifr); 556 } 557 558 static bool felix_rxtstamp(struct dsa_switch *ds, int port, 559 struct sk_buff *skb, unsigned int type) 560 { 561 struct skb_shared_hwtstamps *shhwtstamps; 562 struct ocelot *ocelot = ds->priv; 563 u8 *extraction = skb->data - ETH_HLEN - OCELOT_TAG_LEN; 564 u32 tstamp_lo, tstamp_hi; 565 struct timespec64 ts; 566 u64 tstamp, val; 567 568 ocelot_ptp_gettime64(&ocelot->ptp_info, &ts); 569 tstamp = ktime_set(ts.tv_sec, ts.tv_nsec); 570 571 packing(extraction, &val, 116, 85, OCELOT_TAG_LEN, UNPACK, 0); 572 tstamp_lo = (u32)val; 573 574 tstamp_hi = tstamp >> 32; 575 if ((tstamp & 0xffffffff) < tstamp_lo) 576 tstamp_hi--; 577 578 tstamp = ((u64)tstamp_hi << 32) | tstamp_lo; 579 580 shhwtstamps = skb_hwtstamps(skb); 581 memset(shhwtstamps, 0, sizeof(struct skb_shared_hwtstamps)); 582 shhwtstamps->hwtstamp = tstamp; 583 return false; 584 } 585 586 static bool felix_txtstamp(struct dsa_switch *ds, int port, 587 struct sk_buff *clone, unsigned int type) 588 { 589 struct ocelot *ocelot = ds->priv; 590 struct ocelot_port *ocelot_port = ocelot->ports[port]; 591 592 if (!ocelot_port_add_txtstamp_skb(ocelot_port, clone)) 593 return true; 594 595 return false; 596 } 597 598 static const struct dsa_switch_ops felix_switch_ops = { 599 .get_tag_protocol = felix_get_tag_protocol, 600 .setup = felix_setup, 601 .teardown = felix_teardown, 602 .set_ageing_time = felix_set_ageing_time, 603 .get_strings = felix_get_strings, 604 .get_ethtool_stats = felix_get_ethtool_stats, 605 .get_sset_count = felix_get_sset_count, 606 .get_ts_info = felix_get_ts_info, 607 .phylink_validate = felix_phylink_validate, 608 .phylink_mac_link_state = felix_phylink_mac_pcs_get_state, 609 .phylink_mac_config = felix_phylink_mac_config, 610 .phylink_mac_an_restart = felix_phylink_mac_an_restart, 611 .phylink_mac_link_down = felix_phylink_mac_link_down, 612 .phylink_mac_link_up = felix_phylink_mac_link_up, 613 .port_enable = felix_port_enable, 614 .port_disable = felix_port_disable, 615 .port_fdb_dump = felix_fdb_dump, 616 .port_fdb_add = felix_fdb_add, 617 .port_fdb_del = felix_fdb_del, 618 .port_bridge_join = felix_bridge_join, 619 .port_bridge_leave = felix_bridge_leave, 620 .port_stp_state_set = felix_bridge_stp_state_set, 621 .port_vlan_prepare = felix_vlan_prepare, 622 .port_vlan_filtering = felix_vlan_filtering, 623 .port_vlan_add = felix_vlan_add, 624 .port_vlan_del = felix_vlan_del, 625 .port_hwtstamp_get = felix_hwtstamp_get, 626 .port_hwtstamp_set = felix_hwtstamp_set, 627 .port_rxtstamp = felix_rxtstamp, 628 .port_txtstamp = felix_txtstamp, 629 }; 630 631 static struct felix_info *felix_instance_tbl[] = { 632 [FELIX_INSTANCE_VSC9959] = &felix_info_vsc9959, 633 }; 634 635 static irqreturn_t felix_irq_handler(int irq, void *data) 636 { 637 struct ocelot *ocelot = (struct ocelot *)data; 638 639 /* The INTB interrupt is used for both PTP TX timestamp interrupt 640 * and preemption status change interrupt on each port. 641 * 642 * - Get txtstamp if have 643 * - TODO: handle preemption. Without handling it, driver may get 644 * interrupt storm. 645 */ 646 647 ocelot_get_txtstamp(ocelot); 648 649 return IRQ_HANDLED; 650 } 651 652 static int felix_pci_probe(struct pci_dev *pdev, 653 const struct pci_device_id *id) 654 { 655 enum felix_instance instance = id->driver_data; 656 struct dsa_switch *ds; 657 struct ocelot *ocelot; 658 struct felix *felix; 659 int err; 660 661 err = pci_enable_device(pdev); 662 if (err) { 663 dev_err(&pdev->dev, "device enable failed\n"); 664 goto err_pci_enable; 665 } 666 667 /* set up for high or low dma */ 668 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); 669 if (err) { 670 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); 671 if (err) { 672 dev_err(&pdev->dev, 673 "DMA configuration failed: 0x%x\n", err); 674 goto err_dma; 675 } 676 } 677 678 felix = kzalloc(sizeof(struct felix), GFP_KERNEL); 679 if (!felix) { 680 err = -ENOMEM; 681 dev_err(&pdev->dev, "Failed to allocate driver memory\n"); 682 goto err_alloc_felix; 683 } 684 685 pci_set_drvdata(pdev, felix); 686 ocelot = &felix->ocelot; 687 ocelot->dev = &pdev->dev; 688 felix->pdev = pdev; 689 felix->info = felix_instance_tbl[instance]; 690 691 pci_set_master(pdev); 692 693 err = devm_request_threaded_irq(&pdev->dev, pdev->irq, NULL, 694 &felix_irq_handler, IRQF_ONESHOT, 695 "felix-intb", ocelot); 696 if (err) { 697 dev_err(&pdev->dev, "Failed to request irq\n"); 698 goto err_alloc_irq; 699 } 700 701 ocelot->ptp = 1; 702 703 ds = kzalloc(sizeof(struct dsa_switch), GFP_KERNEL); 704 if (!ds) { 705 err = -ENOMEM; 706 dev_err(&pdev->dev, "Failed to allocate DSA switch\n"); 707 goto err_alloc_ds; 708 } 709 710 ds->dev = &pdev->dev; 711 ds->num_ports = felix->info->num_ports; 712 ds->ops = &felix_switch_ops; 713 ds->priv = ocelot; 714 felix->ds = ds; 715 716 err = dsa_register_switch(ds); 717 if (err) { 718 dev_err(&pdev->dev, "Failed to register DSA switch: %d\n", err); 719 goto err_register_ds; 720 } 721 722 return 0; 723 724 err_register_ds: 725 kfree(ds); 726 err_alloc_ds: 727 err_alloc_irq: 728 err_alloc_felix: 729 kfree(felix); 730 err_dma: 731 pci_disable_device(pdev); 732 err_pci_enable: 733 return err; 734 } 735 736 static void felix_pci_remove(struct pci_dev *pdev) 737 { 738 struct felix *felix; 739 740 felix = pci_get_drvdata(pdev); 741 742 dsa_unregister_switch(felix->ds); 743 744 kfree(felix->ds); 745 kfree(felix); 746 747 pci_disable_device(pdev); 748 } 749 750 static struct pci_device_id felix_ids[] = { 751 { 752 /* NXP LS1028A */ 753 PCI_DEVICE(PCI_VENDOR_ID_FREESCALE, 0xEEF0), 754 .driver_data = FELIX_INSTANCE_VSC9959, 755 }, 756 { 0, } 757 }; 758 MODULE_DEVICE_TABLE(pci, felix_ids); 759 760 static struct pci_driver felix_pci_driver = { 761 .name = KBUILD_MODNAME, 762 .id_table = felix_ids, 763 .probe = felix_pci_probe, 764 .remove = felix_pci_remove, 765 }; 766 767 module_pci_driver(felix_pci_driver); 768 769 MODULE_DESCRIPTION("Felix Switch driver"); 770 MODULE_LICENSE("GPL v2"); 771