1 // SPDX-License-Identifier: GPL-2.0+ 2 3 #include <linux/module.h> 4 #include <linux/if_bridge.h> 5 #include <linux/if_vlan.h> 6 #include <linux/iopoll.h> 7 #include <linux/ip.h> 8 #include <linux/of.h> 9 #include <linux/of_net.h> 10 #include <linux/phy/phy.h> 11 #include <linux/platform_device.h> 12 #include <linux/reset.h> 13 #include <net/addrconf.h> 14 15 #include "lan966x_main.h" 16 17 #define XTR_EOF_0 0x00000080U 18 #define XTR_EOF_1 0x01000080U 19 #define XTR_EOF_2 0x02000080U 20 #define XTR_EOF_3 0x03000080U 21 #define XTR_PRUNED 0x04000080U 22 #define XTR_ABORT 0x05000080U 23 #define XTR_ESCAPE 0x06000080U 24 #define XTR_NOT_READY 0x07000080U 25 #define XTR_VALID_BYTES(x) (4 - (((x) >> 24) & 3)) 26 27 #define IO_RANGES 2 28 29 static const struct of_device_id lan966x_match[] = { 30 { .compatible = "microchip,lan966x-switch" }, 31 { } 32 }; 33 MODULE_DEVICE_TABLE(of, lan966x_match); 34 35 struct lan966x_main_io_resource { 36 enum lan966x_target id; 37 phys_addr_t offset; 38 int range; 39 }; 40 41 static const struct lan966x_main_io_resource lan966x_main_iomap[] = { 42 { TARGET_CPU, 0xc0000, 0 }, /* 0xe00c0000 */ 43 { TARGET_FDMA, 0xc0400, 0 }, /* 0xe00c0400 */ 44 { TARGET_ORG, 0, 1 }, /* 0xe2000000 */ 45 { TARGET_GCB, 0x4000, 1 }, /* 0xe2004000 */ 46 { TARGET_QS, 0x8000, 1 }, /* 0xe2008000 */ 47 { TARGET_PTP, 0xc000, 1 }, /* 0xe200c000 */ 48 { TARGET_CHIP_TOP, 0x10000, 1 }, /* 0xe2010000 */ 49 { TARGET_REW, 0x14000, 1 }, /* 0xe2014000 */ 50 { TARGET_VCAP, 0x18000, 1 }, /* 0xe2018000 */ 51 { TARGET_VCAP + 1, 0x20000, 1 }, /* 0xe2020000 */ 52 { TARGET_VCAP + 2, 0x24000, 1 }, /* 0xe2024000 */ 53 { TARGET_SYS, 0x28000, 1 }, /* 0xe2028000 */ 54 { TARGET_DEV, 0x34000, 1 }, /* 0xe2034000 */ 55 { TARGET_DEV + 1, 0x38000, 1 }, /* 0xe2038000 */ 56 { TARGET_DEV + 2, 0x3c000, 1 }, /* 0xe203c000 */ 57 { TARGET_DEV + 3, 0x40000, 1 }, /* 0xe2040000 */ 58 { TARGET_DEV + 4, 0x44000, 1 }, /* 0xe2044000 */ 59 { TARGET_DEV + 5, 0x48000, 1 }, /* 0xe2048000 */ 60 { TARGET_DEV + 6, 0x4c000, 1 }, /* 0xe204c000 */ 61 { TARGET_DEV + 7, 0x50000, 1 }, /* 0xe2050000 */ 62 { TARGET_QSYS, 0x100000, 1 }, /* 0xe2100000 */ 63 { TARGET_AFI, 0x120000, 1 }, /* 0xe2120000 */ 64 { TARGET_ANA, 0x140000, 1 }, /* 0xe2140000 */ 65 }; 66 67 static int lan966x_create_targets(struct platform_device *pdev, 68 struct lan966x *lan966x) 69 { 70 struct resource *iores[IO_RANGES]; 71 void __iomem *begin[IO_RANGES]; 72 int idx; 73 74 /* Initially map the entire range and after that update each target to 75 * point inside the region at the correct offset. It is possible that 76 * other devices access the same region so don't add any checks about 77 * this. 78 */ 79 for (idx = 0; idx < IO_RANGES; idx++) { 80 iores[idx] = platform_get_resource(pdev, IORESOURCE_MEM, 81 idx); 82 if (!iores[idx]) { 83 dev_err(&pdev->dev, "Invalid resource\n"); 84 return -EINVAL; 85 } 86 87 begin[idx] = devm_ioremap(&pdev->dev, 88 iores[idx]->start, 89 resource_size(iores[idx])); 90 if (!begin[idx]) { 91 dev_err(&pdev->dev, "Unable to get registers: %s\n", 92 iores[idx]->name); 93 return -ENOMEM; 94 } 95 } 96 97 for (idx = 0; idx < ARRAY_SIZE(lan966x_main_iomap); idx++) { 98 const struct lan966x_main_io_resource *iomap = 99 &lan966x_main_iomap[idx]; 100 101 lan966x->regs[iomap->id] = begin[iomap->range] + iomap->offset; 102 } 103 104 return 0; 105 } 106 107 static bool lan966x_port_unique_address(struct net_device *dev) 108 { 109 struct lan966x_port *port = netdev_priv(dev); 110 struct lan966x *lan966x = port->lan966x; 111 int p; 112 113 for (p = 0; p < lan966x->num_phys_ports; ++p) { 114 port = lan966x->ports[p]; 115 if (!port || port->dev == dev) 116 continue; 117 118 if (ether_addr_equal(dev->dev_addr, port->dev->dev_addr)) 119 return false; 120 } 121 122 return true; 123 } 124 125 static int lan966x_port_set_mac_address(struct net_device *dev, void *p) 126 { 127 struct lan966x_port *port = netdev_priv(dev); 128 struct lan966x *lan966x = port->lan966x; 129 const struct sockaddr *addr = p; 130 int ret; 131 132 if (ether_addr_equal(addr->sa_data, dev->dev_addr)) 133 return 0; 134 135 /* Learn the new net device MAC address in the mac table. */ 136 ret = lan966x_mac_cpu_learn(lan966x, addr->sa_data, HOST_PVID); 137 if (ret) 138 return ret; 139 140 /* If there is another port with the same address as the dev, then don't 141 * delete it from the MAC table 142 */ 143 if (!lan966x_port_unique_address(dev)) 144 goto out; 145 146 /* Then forget the previous one. */ 147 ret = lan966x_mac_cpu_forget(lan966x, dev->dev_addr, HOST_PVID); 148 if (ret) 149 return ret; 150 151 out: 152 eth_hw_addr_set(dev, addr->sa_data); 153 return ret; 154 } 155 156 static int lan966x_port_get_phys_port_name(struct net_device *dev, 157 char *buf, size_t len) 158 { 159 struct lan966x_port *port = netdev_priv(dev); 160 int ret; 161 162 ret = snprintf(buf, len, "p%d", port->chip_port); 163 if (ret >= len) 164 return -EINVAL; 165 166 return 0; 167 } 168 169 static int lan966x_port_open(struct net_device *dev) 170 { 171 struct lan966x_port *port = netdev_priv(dev); 172 struct lan966x *lan966x = port->lan966x; 173 int err; 174 175 /* Enable receiving frames on the port, and activate auto-learning of 176 * MAC addresses. 177 */ 178 lan_rmw(ANA_PORT_CFG_LEARNAUTO_SET(1) | 179 ANA_PORT_CFG_RECV_ENA_SET(1) | 180 ANA_PORT_CFG_PORTID_VAL_SET(port->chip_port), 181 ANA_PORT_CFG_LEARNAUTO | 182 ANA_PORT_CFG_RECV_ENA | 183 ANA_PORT_CFG_PORTID_VAL, 184 lan966x, ANA_PORT_CFG(port->chip_port)); 185 186 err = phylink_fwnode_phy_connect(port->phylink, port->fwnode, 0); 187 if (err) { 188 netdev_err(dev, "Could not attach to PHY\n"); 189 return err; 190 } 191 192 phylink_start(port->phylink); 193 194 return 0; 195 } 196 197 static int lan966x_port_stop(struct net_device *dev) 198 { 199 struct lan966x_port *port = netdev_priv(dev); 200 201 lan966x_port_config_down(port); 202 phylink_stop(port->phylink); 203 phylink_disconnect_phy(port->phylink); 204 205 return 0; 206 } 207 208 static int lan966x_port_inj_status(struct lan966x *lan966x) 209 { 210 return lan_rd(lan966x, QS_INJ_STATUS); 211 } 212 213 static int lan966x_port_inj_ready(struct lan966x *lan966x, u8 grp) 214 { 215 u32 val; 216 217 if (lan_rd(lan966x, QS_INJ_STATUS) & QS_INJ_STATUS_FIFO_RDY_SET(BIT(grp))) 218 return 0; 219 220 return readx_poll_timeout_atomic(lan966x_port_inj_status, lan966x, val, 221 QS_INJ_STATUS_FIFO_RDY_GET(val) & BIT(grp), 222 READL_SLEEP_US, READL_TIMEOUT_US); 223 } 224 225 static int lan966x_port_ifh_xmit(struct sk_buff *skb, 226 __be32 *ifh, 227 struct net_device *dev) 228 { 229 struct lan966x_port *port = netdev_priv(dev); 230 struct lan966x *lan966x = port->lan966x; 231 u32 i, count, last; 232 u8 grp = 0; 233 u32 val; 234 int err; 235 236 val = lan_rd(lan966x, QS_INJ_STATUS); 237 if (!(QS_INJ_STATUS_FIFO_RDY_GET(val) & BIT(grp)) || 238 (QS_INJ_STATUS_WMARK_REACHED_GET(val) & BIT(grp))) 239 goto err; 240 241 /* Write start of frame */ 242 lan_wr(QS_INJ_CTRL_GAP_SIZE_SET(1) | 243 QS_INJ_CTRL_SOF_SET(1), 244 lan966x, QS_INJ_CTRL(grp)); 245 246 /* Write IFH header */ 247 for (i = 0; i < IFH_LEN; ++i) { 248 /* Wait until the fifo is ready */ 249 err = lan966x_port_inj_ready(lan966x, grp); 250 if (err) 251 goto err; 252 253 lan_wr((__force u32)ifh[i], lan966x, QS_INJ_WR(grp)); 254 } 255 256 /* Write frame */ 257 count = DIV_ROUND_UP(skb->len, 4); 258 last = skb->len % 4; 259 for (i = 0; i < count; ++i) { 260 /* Wait until the fifo is ready */ 261 err = lan966x_port_inj_ready(lan966x, grp); 262 if (err) 263 goto err; 264 265 lan_wr(((u32 *)skb->data)[i], lan966x, QS_INJ_WR(grp)); 266 } 267 268 /* Add padding */ 269 while (i < (LAN966X_BUFFER_MIN_SZ / 4)) { 270 /* Wait until the fifo is ready */ 271 err = lan966x_port_inj_ready(lan966x, grp); 272 if (err) 273 goto err; 274 275 lan_wr(0, lan966x, QS_INJ_WR(grp)); 276 ++i; 277 } 278 279 /* Inidcate EOF and valid bytes in the last word */ 280 lan_wr(QS_INJ_CTRL_GAP_SIZE_SET(1) | 281 QS_INJ_CTRL_VLD_BYTES_SET(skb->len < LAN966X_BUFFER_MIN_SZ ? 282 0 : last) | 283 QS_INJ_CTRL_EOF_SET(1), 284 lan966x, QS_INJ_CTRL(grp)); 285 286 /* Add dummy CRC */ 287 lan_wr(0, lan966x, QS_INJ_WR(grp)); 288 skb_tx_timestamp(skb); 289 290 dev->stats.tx_packets++; 291 dev->stats.tx_bytes += skb->len; 292 293 if (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP && 294 LAN966X_SKB_CB(skb)->rew_op == IFH_REW_OP_TWO_STEP_PTP) 295 return NETDEV_TX_OK; 296 297 dev_consume_skb_any(skb); 298 return NETDEV_TX_OK; 299 300 err: 301 if (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP && 302 LAN966X_SKB_CB(skb)->rew_op == IFH_REW_OP_TWO_STEP_PTP) 303 lan966x_ptp_txtstamp_release(port, skb); 304 305 return NETDEV_TX_BUSY; 306 } 307 308 static void lan966x_ifh_set(u8 *ifh, size_t val, size_t pos, size_t length) 309 { 310 int i = 0; 311 312 do { 313 u8 p = IFH_LEN_BYTES - (pos + i) / 8 - 1; 314 u8 v = val >> i & 0xff; 315 316 /* There is no need to check for limits of the array, as these 317 * will never be written 318 */ 319 ifh[p] |= v << ((pos + i) % 8); 320 ifh[p - 1] |= v >> (8 - (pos + i) % 8); 321 322 i += 8; 323 } while (i < length); 324 } 325 326 void lan966x_ifh_set_bypass(void *ifh, u64 bypass) 327 { 328 lan966x_ifh_set(ifh, bypass, IFH_POS_BYPASS, IFH_WID_BYPASS); 329 } 330 331 void lan966x_ifh_set_port(void *ifh, u64 port) 332 { 333 lan966x_ifh_set(ifh, port, IFH_POS_DSTS, IFH_WID_DSTS); 334 } 335 336 static void lan966x_ifh_set_qos_class(void *ifh, u64 qos) 337 { 338 lan966x_ifh_set(ifh, qos, IFH_POS_QOS_CLASS, IFH_WID_QOS_CLASS); 339 } 340 341 static void lan966x_ifh_set_ipv(void *ifh, u64 ipv) 342 { 343 lan966x_ifh_set(ifh, ipv, IFH_POS_IPV, IFH_WID_IPV); 344 } 345 346 static void lan966x_ifh_set_vid(void *ifh, u64 vid) 347 { 348 lan966x_ifh_set(ifh, vid, IFH_POS_TCI, IFH_WID_TCI); 349 } 350 351 static void lan966x_ifh_set_rew_op(void *ifh, u64 rew_op) 352 { 353 lan966x_ifh_set(ifh, rew_op, IFH_POS_REW_CMD, IFH_WID_REW_CMD); 354 } 355 356 static void lan966x_ifh_set_timestamp(void *ifh, u64 timestamp) 357 { 358 lan966x_ifh_set(ifh, timestamp, IFH_POS_TIMESTAMP, IFH_WID_TIMESTAMP); 359 } 360 361 static netdev_tx_t lan966x_port_xmit(struct sk_buff *skb, 362 struct net_device *dev) 363 { 364 struct lan966x_port *port = netdev_priv(dev); 365 struct lan966x *lan966x = port->lan966x; 366 __be32 ifh[IFH_LEN]; 367 int err; 368 369 memset(ifh, 0x0, sizeof(__be32) * IFH_LEN); 370 371 lan966x_ifh_set_bypass(ifh, 1); 372 lan966x_ifh_set_port(ifh, BIT_ULL(port->chip_port)); 373 lan966x_ifh_set_qos_class(ifh, skb->priority >= 7 ? 0x7 : skb->priority); 374 lan966x_ifh_set_ipv(ifh, skb->priority >= 7 ? 0x7 : skb->priority); 375 lan966x_ifh_set_vid(ifh, skb_vlan_tag_get(skb)); 376 377 if (port->lan966x->ptp && skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) { 378 err = lan966x_ptp_txtstamp_request(port, skb); 379 if (err) 380 return err; 381 382 lan966x_ifh_set_rew_op(ifh, LAN966X_SKB_CB(skb)->rew_op); 383 lan966x_ifh_set_timestamp(ifh, LAN966X_SKB_CB(skb)->ts_id); 384 } 385 386 spin_lock(&lan966x->tx_lock); 387 if (port->lan966x->fdma) 388 err = lan966x_fdma_xmit(skb, ifh, dev); 389 else 390 err = lan966x_port_ifh_xmit(skb, ifh, dev); 391 spin_unlock(&lan966x->tx_lock); 392 393 return err; 394 } 395 396 static int lan966x_port_change_mtu(struct net_device *dev, int new_mtu) 397 { 398 struct lan966x_port *port = netdev_priv(dev); 399 struct lan966x *lan966x = port->lan966x; 400 int old_mtu = dev->mtu; 401 int err; 402 403 lan_wr(DEV_MAC_MAXLEN_CFG_MAX_LEN_SET(LAN966X_HW_MTU(new_mtu)), 404 lan966x, DEV_MAC_MAXLEN_CFG(port->chip_port)); 405 dev->mtu = new_mtu; 406 407 if (!lan966x->fdma) 408 return 0; 409 410 err = lan966x_fdma_change_mtu(lan966x); 411 if (err) { 412 lan_wr(DEV_MAC_MAXLEN_CFG_MAX_LEN_SET(LAN966X_HW_MTU(old_mtu)), 413 lan966x, DEV_MAC_MAXLEN_CFG(port->chip_port)); 414 dev->mtu = old_mtu; 415 } 416 417 return err; 418 } 419 420 static int lan966x_mc_unsync(struct net_device *dev, const unsigned char *addr) 421 { 422 struct lan966x_port *port = netdev_priv(dev); 423 struct lan966x *lan966x = port->lan966x; 424 425 return lan966x_mac_forget(lan966x, addr, HOST_PVID, ENTRYTYPE_LOCKED); 426 } 427 428 static int lan966x_mc_sync(struct net_device *dev, const unsigned char *addr) 429 { 430 struct lan966x_port *port = netdev_priv(dev); 431 struct lan966x *lan966x = port->lan966x; 432 433 return lan966x_mac_cpu_learn(lan966x, addr, HOST_PVID); 434 } 435 436 static void lan966x_port_set_rx_mode(struct net_device *dev) 437 { 438 __dev_mc_sync(dev, lan966x_mc_sync, lan966x_mc_unsync); 439 } 440 441 static int lan966x_port_get_parent_id(struct net_device *dev, 442 struct netdev_phys_item_id *ppid) 443 { 444 struct lan966x_port *port = netdev_priv(dev); 445 struct lan966x *lan966x = port->lan966x; 446 447 ppid->id_len = sizeof(lan966x->base_mac); 448 memcpy(&ppid->id, &lan966x->base_mac, ppid->id_len); 449 450 return 0; 451 } 452 453 static int lan966x_port_ioctl(struct net_device *dev, struct ifreq *ifr, 454 int cmd) 455 { 456 struct lan966x_port *port = netdev_priv(dev); 457 int err; 458 459 if (cmd == SIOCSHWTSTAMP) { 460 err = lan966x_ptp_setup_traps(port, ifr); 461 if (err) 462 return err; 463 } 464 465 if (!phy_has_hwtstamp(dev->phydev) && port->lan966x->ptp) { 466 switch (cmd) { 467 case SIOCSHWTSTAMP: 468 err = lan966x_ptp_hwtstamp_set(port, ifr); 469 if (err) 470 lan966x_ptp_del_traps(port); 471 472 return err; 473 case SIOCGHWTSTAMP: 474 return lan966x_ptp_hwtstamp_get(port, ifr); 475 } 476 } 477 478 if (!dev->phydev) 479 return -ENODEV; 480 481 err = phy_mii_ioctl(dev->phydev, ifr, cmd); 482 if (err && cmd == SIOCSHWTSTAMP) 483 lan966x_ptp_del_traps(port); 484 485 return err; 486 } 487 488 static const struct net_device_ops lan966x_port_netdev_ops = { 489 .ndo_open = lan966x_port_open, 490 .ndo_stop = lan966x_port_stop, 491 .ndo_start_xmit = lan966x_port_xmit, 492 .ndo_change_mtu = lan966x_port_change_mtu, 493 .ndo_set_rx_mode = lan966x_port_set_rx_mode, 494 .ndo_get_phys_port_name = lan966x_port_get_phys_port_name, 495 .ndo_get_stats64 = lan966x_stats_get, 496 .ndo_set_mac_address = lan966x_port_set_mac_address, 497 .ndo_get_port_parent_id = lan966x_port_get_parent_id, 498 .ndo_eth_ioctl = lan966x_port_ioctl, 499 .ndo_setup_tc = lan966x_tc_setup, 500 .ndo_bpf = lan966x_xdp, 501 .ndo_xdp_xmit = lan966x_xdp_xmit, 502 }; 503 504 bool lan966x_netdevice_check(const struct net_device *dev) 505 { 506 return dev->netdev_ops == &lan966x_port_netdev_ops; 507 } 508 509 bool lan966x_hw_offload(struct lan966x *lan966x, u32 port, struct sk_buff *skb) 510 { 511 u32 val; 512 513 /* The IGMP and MLD frames are not forward by the HW if 514 * multicast snooping is enabled, therefor don't mark as 515 * offload to allow the SW to forward the frames accordingly. 516 */ 517 val = lan_rd(lan966x, ANA_CPU_FWD_CFG(port)); 518 if (!(val & (ANA_CPU_FWD_CFG_IGMP_REDIR_ENA | 519 ANA_CPU_FWD_CFG_MLD_REDIR_ENA))) 520 return true; 521 522 if (eth_type_vlan(skb->protocol)) { 523 skb = skb_vlan_untag(skb); 524 if (unlikely(!skb)) 525 return false; 526 } 527 528 if (skb->protocol == htons(ETH_P_IP) && 529 ip_hdr(skb)->protocol == IPPROTO_IGMP) 530 return false; 531 532 if (IS_ENABLED(CONFIG_IPV6) && 533 skb->protocol == htons(ETH_P_IPV6) && 534 ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr) && 535 !ipv6_mc_check_mld(skb)) 536 return false; 537 538 return true; 539 } 540 541 static int lan966x_port_xtr_status(struct lan966x *lan966x, u8 grp) 542 { 543 return lan_rd(lan966x, QS_XTR_RD(grp)); 544 } 545 546 static int lan966x_port_xtr_ready(struct lan966x *lan966x, u8 grp) 547 { 548 u32 val; 549 550 return read_poll_timeout(lan966x_port_xtr_status, val, 551 val != XTR_NOT_READY, 552 READL_SLEEP_US, READL_TIMEOUT_US, false, 553 lan966x, grp); 554 } 555 556 static int lan966x_rx_frame_word(struct lan966x *lan966x, u8 grp, u32 *rval) 557 { 558 u32 bytes_valid; 559 u32 val; 560 int err; 561 562 val = lan_rd(lan966x, QS_XTR_RD(grp)); 563 if (val == XTR_NOT_READY) { 564 err = lan966x_port_xtr_ready(lan966x, grp); 565 if (err) 566 return -EIO; 567 } 568 569 switch (val) { 570 case XTR_ABORT: 571 return -EIO; 572 case XTR_EOF_0: 573 case XTR_EOF_1: 574 case XTR_EOF_2: 575 case XTR_EOF_3: 576 case XTR_PRUNED: 577 bytes_valid = XTR_VALID_BYTES(val); 578 val = lan_rd(lan966x, QS_XTR_RD(grp)); 579 if (val == XTR_ESCAPE) 580 *rval = lan_rd(lan966x, QS_XTR_RD(grp)); 581 else 582 *rval = val; 583 584 return bytes_valid; 585 case XTR_ESCAPE: 586 *rval = lan_rd(lan966x, QS_XTR_RD(grp)); 587 588 return 4; 589 default: 590 *rval = val; 591 592 return 4; 593 } 594 } 595 596 static u64 lan966x_ifh_get(u8 *ifh, size_t pos, size_t length) 597 { 598 u64 val = 0; 599 u8 v; 600 601 for (int i = 0; i < length ; i++) { 602 int j = pos + i; 603 int k = j % 8; 604 605 if (i == 0 || k == 0) 606 v = ifh[IFH_LEN_BYTES - (j / 8) - 1]; 607 608 if (v & (1 << k)) 609 val |= (1ULL << i); 610 } 611 612 return val; 613 } 614 615 void lan966x_ifh_get_src_port(void *ifh, u64 *src_port) 616 { 617 *src_port = lan966x_ifh_get(ifh, IFH_POS_SRCPORT, IFH_WID_SRCPORT); 618 } 619 620 static void lan966x_ifh_get_len(void *ifh, u64 *len) 621 { 622 *len = lan966x_ifh_get(ifh, IFH_POS_LEN, IFH_WID_LEN); 623 } 624 625 void lan966x_ifh_get_timestamp(void *ifh, u64 *timestamp) 626 { 627 *timestamp = lan966x_ifh_get(ifh, IFH_POS_TIMESTAMP, IFH_WID_TIMESTAMP); 628 } 629 630 static irqreturn_t lan966x_xtr_irq_handler(int irq, void *args) 631 { 632 struct lan966x *lan966x = args; 633 int i, grp = 0, err = 0; 634 635 if (!(lan_rd(lan966x, QS_XTR_DATA_PRESENT) & BIT(grp))) 636 return IRQ_NONE; 637 638 do { 639 u64 src_port, len, timestamp; 640 struct net_device *dev; 641 struct sk_buff *skb; 642 int sz = 0, buf_len; 643 u32 ifh[IFH_LEN]; 644 u32 *buf; 645 u32 val; 646 647 for (i = 0; i < IFH_LEN; i++) { 648 err = lan966x_rx_frame_word(lan966x, grp, &ifh[i]); 649 if (err != 4) 650 goto recover; 651 } 652 653 err = 0; 654 655 lan966x_ifh_get_src_port(ifh, &src_port); 656 lan966x_ifh_get_len(ifh, &len); 657 lan966x_ifh_get_timestamp(ifh, ×tamp); 658 659 WARN_ON(src_port >= lan966x->num_phys_ports); 660 661 dev = lan966x->ports[src_port]->dev; 662 skb = netdev_alloc_skb(dev, len); 663 if (unlikely(!skb)) { 664 netdev_err(dev, "Unable to allocate sk_buff\n"); 665 err = -ENOMEM; 666 break; 667 } 668 buf_len = len - ETH_FCS_LEN; 669 buf = (u32 *)skb_put(skb, buf_len); 670 671 len = 0; 672 do { 673 sz = lan966x_rx_frame_word(lan966x, grp, &val); 674 if (sz < 0) { 675 kfree_skb(skb); 676 goto recover; 677 } 678 679 *buf++ = val; 680 len += sz; 681 } while (len < buf_len); 682 683 /* Read the FCS */ 684 sz = lan966x_rx_frame_word(lan966x, grp, &val); 685 if (sz < 0) { 686 kfree_skb(skb); 687 goto recover; 688 } 689 690 /* Update the statistics if part of the FCS was read before */ 691 len -= ETH_FCS_LEN - sz; 692 693 if (unlikely(dev->features & NETIF_F_RXFCS)) { 694 buf = (u32 *)skb_put(skb, ETH_FCS_LEN); 695 *buf = val; 696 } 697 698 lan966x_ptp_rxtstamp(lan966x, skb, src_port, timestamp); 699 skb->protocol = eth_type_trans(skb, dev); 700 701 if (lan966x->bridge_mask & BIT(src_port)) { 702 skb->offload_fwd_mark = 1; 703 704 skb_reset_network_header(skb); 705 if (!lan966x_hw_offload(lan966x, src_port, skb)) 706 skb->offload_fwd_mark = 0; 707 } 708 709 if (!skb_defer_rx_timestamp(skb)) 710 netif_rx(skb); 711 712 dev->stats.rx_bytes += len; 713 dev->stats.rx_packets++; 714 715 recover: 716 if (sz < 0 || err) 717 lan_rd(lan966x, QS_XTR_RD(grp)); 718 719 } while (lan_rd(lan966x, QS_XTR_DATA_PRESENT) & BIT(grp)); 720 721 return IRQ_HANDLED; 722 } 723 724 static irqreturn_t lan966x_ana_irq_handler(int irq, void *args) 725 { 726 struct lan966x *lan966x = args; 727 728 return lan966x_mac_irq_handler(lan966x); 729 } 730 731 static void lan966x_cleanup_ports(struct lan966x *lan966x) 732 { 733 struct lan966x_port *port; 734 int p; 735 736 for (p = 0; p < lan966x->num_phys_ports; p++) { 737 port = lan966x->ports[p]; 738 if (!port) 739 continue; 740 741 if (port->dev) 742 unregister_netdev(port->dev); 743 744 lan966x_xdp_port_deinit(port); 745 if (lan966x->fdma && lan966x->fdma_ndev == port->dev) 746 lan966x_fdma_netdev_deinit(lan966x, port->dev); 747 748 if (port->phylink) { 749 rtnl_lock(); 750 lan966x_port_stop(port->dev); 751 rtnl_unlock(); 752 phylink_destroy(port->phylink); 753 port->phylink = NULL; 754 } 755 756 if (port->fwnode) 757 fwnode_handle_put(port->fwnode); 758 } 759 760 disable_irq(lan966x->xtr_irq); 761 lan966x->xtr_irq = -ENXIO; 762 763 if (lan966x->ana_irq > 0) { 764 disable_irq(lan966x->ana_irq); 765 lan966x->ana_irq = -ENXIO; 766 } 767 768 if (lan966x->fdma) 769 devm_free_irq(lan966x->dev, lan966x->fdma_irq, lan966x); 770 771 if (lan966x->ptp_irq > 0) 772 devm_free_irq(lan966x->dev, lan966x->ptp_irq, lan966x); 773 774 if (lan966x->ptp_ext_irq > 0) 775 devm_free_irq(lan966x->dev, lan966x->ptp_ext_irq, lan966x); 776 } 777 778 static int lan966x_probe_port(struct lan966x *lan966x, u32 p, 779 phy_interface_t phy_mode, 780 struct fwnode_handle *portnp) 781 { 782 struct lan966x_port *port; 783 struct phylink *phylink; 784 struct net_device *dev; 785 int err; 786 787 if (p >= lan966x->num_phys_ports) 788 return -EINVAL; 789 790 dev = devm_alloc_etherdev_mqs(lan966x->dev, 791 sizeof(struct lan966x_port), 792 NUM_PRIO_QUEUES, 1); 793 if (!dev) 794 return -ENOMEM; 795 796 SET_NETDEV_DEV(dev, lan966x->dev); 797 port = netdev_priv(dev); 798 port->dev = dev; 799 port->lan966x = lan966x; 800 port->chip_port = p; 801 lan966x->ports[p] = port; 802 803 dev->max_mtu = ETH_MAX_MTU; 804 805 dev->netdev_ops = &lan966x_port_netdev_ops; 806 dev->ethtool_ops = &lan966x_ethtool_ops; 807 dev->features |= NETIF_F_HW_VLAN_CTAG_TX | 808 NETIF_F_HW_VLAN_STAG_TX | 809 NETIF_F_HW_TC; 810 dev->hw_features |= NETIF_F_HW_TC; 811 dev->needed_headroom = IFH_LEN_BYTES; 812 813 eth_hw_addr_gen(dev, lan966x->base_mac, p + 1); 814 815 lan966x_mac_learn(lan966x, PGID_CPU, dev->dev_addr, HOST_PVID, 816 ENTRYTYPE_LOCKED); 817 818 port->phylink_config.dev = &port->dev->dev; 819 port->phylink_config.type = PHYLINK_NETDEV; 820 port->phylink_pcs.poll = true; 821 port->phylink_pcs.ops = &lan966x_phylink_pcs_ops; 822 port->phylink_pcs.neg_mode = true; 823 824 port->phylink_config.mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE | 825 MAC_10 | MAC_100 | MAC_1000FD | MAC_2500FD; 826 827 phy_interface_set_rgmii(port->phylink_config.supported_interfaces); 828 __set_bit(PHY_INTERFACE_MODE_MII, 829 port->phylink_config.supported_interfaces); 830 __set_bit(PHY_INTERFACE_MODE_GMII, 831 port->phylink_config.supported_interfaces); 832 __set_bit(PHY_INTERFACE_MODE_SGMII, 833 port->phylink_config.supported_interfaces); 834 __set_bit(PHY_INTERFACE_MODE_QSGMII, 835 port->phylink_config.supported_interfaces); 836 __set_bit(PHY_INTERFACE_MODE_QUSGMII, 837 port->phylink_config.supported_interfaces); 838 __set_bit(PHY_INTERFACE_MODE_1000BASEX, 839 port->phylink_config.supported_interfaces); 840 __set_bit(PHY_INTERFACE_MODE_2500BASEX, 841 port->phylink_config.supported_interfaces); 842 843 phylink = phylink_create(&port->phylink_config, 844 portnp, 845 phy_mode, 846 &lan966x_phylink_mac_ops); 847 if (IS_ERR(phylink)) { 848 port->dev = NULL; 849 return PTR_ERR(phylink); 850 } 851 852 port->phylink = phylink; 853 854 if (lan966x->fdma) 855 dev->xdp_features = NETDEV_XDP_ACT_BASIC | 856 NETDEV_XDP_ACT_REDIRECT | 857 NETDEV_XDP_ACT_NDO_XMIT; 858 859 err = register_netdev(dev); 860 if (err) { 861 dev_err(lan966x->dev, "register_netdev failed\n"); 862 return err; 863 } 864 865 lan966x_vlan_port_set_vlan_aware(port, 0); 866 lan966x_vlan_port_set_vid(port, HOST_PVID, false, false); 867 lan966x_vlan_port_apply(port); 868 869 return 0; 870 } 871 872 static void lan966x_init(struct lan966x *lan966x) 873 { 874 u32 p, i; 875 876 /* MAC table initialization */ 877 lan966x_mac_init(lan966x); 878 879 lan966x_vlan_init(lan966x); 880 881 /* Flush queues */ 882 lan_wr(lan_rd(lan966x, QS_XTR_FLUSH) | 883 GENMASK(1, 0), 884 lan966x, QS_XTR_FLUSH); 885 886 /* Allow to drain */ 887 mdelay(1); 888 889 /* All Queues normal */ 890 lan_wr(lan_rd(lan966x, QS_XTR_FLUSH) & 891 ~(GENMASK(1, 0)), 892 lan966x, QS_XTR_FLUSH); 893 894 /* Set MAC age time to default value, the entry is aged after 895 * 2 * AGE_PERIOD 896 */ 897 lan_wr(ANA_AUTOAGE_AGE_PERIOD_SET(BR_DEFAULT_AGEING_TIME / 2 / HZ), 898 lan966x, ANA_AUTOAGE); 899 900 /* Disable learning for frames discarded by VLAN ingress filtering */ 901 lan_rmw(ANA_ADVLEARN_VLAN_CHK_SET(1), 902 ANA_ADVLEARN_VLAN_CHK, 903 lan966x, ANA_ADVLEARN); 904 905 /* Setup frame ageing - "2 sec" - The unit is 6.5 us on lan966x */ 906 lan_wr(SYS_FRM_AGING_AGE_TX_ENA_SET(1) | 907 (20000000 / 65), 908 lan966x, SYS_FRM_AGING); 909 910 /* Map the 8 CPU extraction queues to CPU port */ 911 lan_wr(0, lan966x, QSYS_CPU_GROUP_MAP); 912 913 /* Do byte-swap and expect status after last data word 914 * Extraction: Mode: manual extraction) | Byte_swap 915 */ 916 lan_wr(QS_XTR_GRP_CFG_MODE_SET(lan966x->fdma ? 2 : 1) | 917 QS_XTR_GRP_CFG_BYTE_SWAP_SET(1), 918 lan966x, QS_XTR_GRP_CFG(0)); 919 920 /* Injection: Mode: manual injection | Byte_swap */ 921 lan_wr(QS_INJ_GRP_CFG_MODE_SET(lan966x->fdma ? 2 : 1) | 922 QS_INJ_GRP_CFG_BYTE_SWAP_SET(1), 923 lan966x, QS_INJ_GRP_CFG(0)); 924 925 lan_rmw(QS_INJ_CTRL_GAP_SIZE_SET(0), 926 QS_INJ_CTRL_GAP_SIZE, 927 lan966x, QS_INJ_CTRL(0)); 928 929 /* Enable IFH insertion/parsing on CPU ports */ 930 lan_wr(SYS_PORT_MODE_INCL_INJ_HDR_SET(1) | 931 SYS_PORT_MODE_INCL_XTR_HDR_SET(1), 932 lan966x, SYS_PORT_MODE(CPU_PORT)); 933 934 /* Setup flooding PGIDs */ 935 lan_wr(ANA_FLOODING_IPMC_FLD_MC4_DATA_SET(PGID_MCIPV4) | 936 ANA_FLOODING_IPMC_FLD_MC4_CTRL_SET(PGID_MC) | 937 ANA_FLOODING_IPMC_FLD_MC6_DATA_SET(PGID_MCIPV6) | 938 ANA_FLOODING_IPMC_FLD_MC6_CTRL_SET(PGID_MC), 939 lan966x, ANA_FLOODING_IPMC); 940 941 /* There are 8 priorities */ 942 for (i = 0; i < 8; ++i) 943 lan_rmw(ANA_FLOODING_FLD_MULTICAST_SET(PGID_MC) | 944 ANA_FLOODING_FLD_UNICAST_SET(PGID_UC) | 945 ANA_FLOODING_FLD_BROADCAST_SET(PGID_BC), 946 ANA_FLOODING_FLD_MULTICAST | 947 ANA_FLOODING_FLD_UNICAST | 948 ANA_FLOODING_FLD_BROADCAST, 949 lan966x, ANA_FLOODING(i)); 950 951 for (i = 0; i < PGID_ENTRIES; ++i) 952 /* Set all the entries to obey VLAN_VLAN */ 953 lan_rmw(ANA_PGID_CFG_OBEY_VLAN_SET(1), 954 ANA_PGID_CFG_OBEY_VLAN, 955 lan966x, ANA_PGID_CFG(i)); 956 957 for (p = 0; p < lan966x->num_phys_ports; p++) { 958 /* Disable bridging by default */ 959 lan_rmw(ANA_PGID_PGID_SET(0x0), 960 ANA_PGID_PGID, 961 lan966x, ANA_PGID(p + PGID_SRC)); 962 963 /* Do not forward BPDU frames to the front ports and copy them 964 * to CPU 965 */ 966 lan_wr(0xffff, lan966x, ANA_CPU_FWD_BPDU_CFG(p)); 967 } 968 969 /* Set source buffer size for each priority and each port to 1500 bytes */ 970 for (i = 0; i <= QSYS_Q_RSRV; ++i) { 971 lan_wr(1500 / 64, lan966x, QSYS_RES_CFG(i)); 972 lan_wr(1500 / 64, lan966x, QSYS_RES_CFG(512 + i)); 973 } 974 975 /* Enable switching to/from cpu port */ 976 lan_wr(QSYS_SW_PORT_MODE_PORT_ENA_SET(1) | 977 QSYS_SW_PORT_MODE_SCH_NEXT_CFG_SET(1) | 978 QSYS_SW_PORT_MODE_INGRESS_DROP_MODE_SET(1), 979 lan966x, QSYS_SW_PORT_MODE(CPU_PORT)); 980 981 /* Configure and enable the CPU port */ 982 lan_rmw(ANA_PGID_PGID_SET(0), 983 ANA_PGID_PGID, 984 lan966x, ANA_PGID(CPU_PORT)); 985 lan_rmw(ANA_PGID_PGID_SET(BIT(CPU_PORT)), 986 ANA_PGID_PGID, 987 lan966x, ANA_PGID(PGID_CPU)); 988 989 /* Multicast to all other ports */ 990 lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0), 991 ANA_PGID_PGID, 992 lan966x, ANA_PGID(PGID_MC)); 993 994 /* This will be controlled by mrouter ports */ 995 lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0), 996 ANA_PGID_PGID, 997 lan966x, ANA_PGID(PGID_MCIPV4)); 998 999 lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0), 1000 ANA_PGID_PGID, 1001 lan966x, ANA_PGID(PGID_MCIPV6)); 1002 1003 /* Unicast to all other ports */ 1004 lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0), 1005 ANA_PGID_PGID, 1006 lan966x, ANA_PGID(PGID_UC)); 1007 1008 /* Broadcast to the CPU port and to other ports */ 1009 lan_rmw(ANA_PGID_PGID_SET(BIT(CPU_PORT) | GENMASK(lan966x->num_phys_ports - 1, 0)), 1010 ANA_PGID_PGID, 1011 lan966x, ANA_PGID(PGID_BC)); 1012 1013 lan_wr(REW_PORT_CFG_NO_REWRITE_SET(1), 1014 lan966x, REW_PORT_CFG(CPU_PORT)); 1015 1016 lan_rmw(ANA_ANAINTR_INTR_ENA_SET(1), 1017 ANA_ANAINTR_INTR_ENA, 1018 lan966x, ANA_ANAINTR); 1019 1020 spin_lock_init(&lan966x->tx_lock); 1021 1022 lan966x_taprio_init(lan966x); 1023 } 1024 1025 static int lan966x_ram_init(struct lan966x *lan966x) 1026 { 1027 return lan_rd(lan966x, SYS_RAM_INIT); 1028 } 1029 1030 static int lan966x_reset_switch(struct lan966x *lan966x) 1031 { 1032 struct reset_control *switch_reset; 1033 int val = 0; 1034 int ret; 1035 1036 switch_reset = devm_reset_control_get_optional_shared(lan966x->dev, 1037 "switch"); 1038 if (IS_ERR(switch_reset)) 1039 return dev_err_probe(lan966x->dev, PTR_ERR(switch_reset), 1040 "Could not obtain switch reset"); 1041 1042 reset_control_reset(switch_reset); 1043 1044 /* Don't reinitialize the switch core, if it is already initialized. In 1045 * case it is initialized twice, some pointers inside the queue system 1046 * in HW will get corrupted and then after a while the queue system gets 1047 * full and no traffic is passing through the switch. The issue is seen 1048 * when loading and unloading the driver and sending traffic through the 1049 * switch. 1050 */ 1051 if (lan_rd(lan966x, SYS_RESET_CFG) & SYS_RESET_CFG_CORE_ENA) 1052 return 0; 1053 1054 lan_wr(SYS_RESET_CFG_CORE_ENA_SET(0), lan966x, SYS_RESET_CFG); 1055 lan_wr(SYS_RAM_INIT_RAM_INIT_SET(1), lan966x, SYS_RAM_INIT); 1056 ret = readx_poll_timeout(lan966x_ram_init, lan966x, 1057 val, (val & BIT(1)) == 0, READL_SLEEP_US, 1058 READL_TIMEOUT_US); 1059 if (ret) 1060 return ret; 1061 1062 lan_wr(SYS_RESET_CFG_CORE_ENA_SET(1), lan966x, SYS_RESET_CFG); 1063 1064 return 0; 1065 } 1066 1067 static int lan966x_probe(struct platform_device *pdev) 1068 { 1069 struct fwnode_handle *ports, *portnp; 1070 struct lan966x *lan966x; 1071 u8 mac_addr[ETH_ALEN]; 1072 int err; 1073 1074 lan966x = devm_kzalloc(&pdev->dev, sizeof(*lan966x), GFP_KERNEL); 1075 if (!lan966x) 1076 return -ENOMEM; 1077 1078 platform_set_drvdata(pdev, lan966x); 1079 lan966x->dev = &pdev->dev; 1080 1081 lan966x->debugfs_root = debugfs_create_dir("lan966x", NULL); 1082 1083 if (!device_get_mac_address(&pdev->dev, mac_addr)) { 1084 ether_addr_copy(lan966x->base_mac, mac_addr); 1085 } else { 1086 pr_info("MAC addr was not set, use random MAC\n"); 1087 eth_random_addr(lan966x->base_mac); 1088 lan966x->base_mac[5] &= 0xf0; 1089 } 1090 1091 err = lan966x_create_targets(pdev, lan966x); 1092 if (err) 1093 return dev_err_probe(&pdev->dev, err, 1094 "Failed to create targets"); 1095 1096 err = lan966x_reset_switch(lan966x); 1097 if (err) 1098 return dev_err_probe(&pdev->dev, err, "Reset failed"); 1099 1100 lan966x->num_phys_ports = NUM_PHYS_PORTS; 1101 lan966x->ports = devm_kcalloc(&pdev->dev, lan966x->num_phys_ports, 1102 sizeof(struct lan966x_port *), 1103 GFP_KERNEL); 1104 if (!lan966x->ports) 1105 return -ENOMEM; 1106 1107 /* There QS system has 32KB of memory */ 1108 lan966x->shared_queue_sz = LAN966X_BUFFER_MEMORY; 1109 1110 /* set irq */ 1111 lan966x->xtr_irq = platform_get_irq_byname(pdev, "xtr"); 1112 if (lan966x->xtr_irq <= 0) 1113 return -EINVAL; 1114 1115 err = devm_request_threaded_irq(&pdev->dev, lan966x->xtr_irq, NULL, 1116 lan966x_xtr_irq_handler, IRQF_ONESHOT, 1117 "frame extraction", lan966x); 1118 if (err) { 1119 pr_err("Unable to use xtr irq"); 1120 return -ENODEV; 1121 } 1122 1123 lan966x->ana_irq = platform_get_irq_byname(pdev, "ana"); 1124 if (lan966x->ana_irq > 0) { 1125 err = devm_request_threaded_irq(&pdev->dev, lan966x->ana_irq, NULL, 1126 lan966x_ana_irq_handler, IRQF_ONESHOT, 1127 "ana irq", lan966x); 1128 if (err) 1129 return dev_err_probe(&pdev->dev, err, "Unable to use ana irq"); 1130 } 1131 1132 lan966x->ptp_irq = platform_get_irq_byname(pdev, "ptp"); 1133 if (lan966x->ptp_irq > 0) { 1134 err = devm_request_threaded_irq(&pdev->dev, lan966x->ptp_irq, NULL, 1135 lan966x_ptp_irq_handler, IRQF_ONESHOT, 1136 "ptp irq", lan966x); 1137 if (err) 1138 return dev_err_probe(&pdev->dev, err, "Unable to use ptp irq"); 1139 1140 lan966x->ptp = 1; 1141 } 1142 1143 lan966x->fdma_irq = platform_get_irq_byname(pdev, "fdma"); 1144 if (lan966x->fdma_irq > 0) { 1145 err = devm_request_irq(&pdev->dev, lan966x->fdma_irq, 1146 lan966x_fdma_irq_handler, 0, 1147 "fdma irq", lan966x); 1148 if (err) 1149 return dev_err_probe(&pdev->dev, err, "Unable to use fdma irq"); 1150 1151 lan966x->fdma = true; 1152 } 1153 1154 if (lan966x->ptp) { 1155 lan966x->ptp_ext_irq = platform_get_irq_byname(pdev, "ptp-ext"); 1156 if (lan966x->ptp_ext_irq > 0) { 1157 err = devm_request_threaded_irq(&pdev->dev, 1158 lan966x->ptp_ext_irq, NULL, 1159 lan966x_ptp_ext_irq_handler, 1160 IRQF_ONESHOT, 1161 "ptp-ext irq", lan966x); 1162 if (err) 1163 return dev_err_probe(&pdev->dev, err, 1164 "Unable to use ptp-ext irq"); 1165 } 1166 } 1167 1168 ports = device_get_named_child_node(&pdev->dev, "ethernet-ports"); 1169 if (!ports) 1170 return dev_err_probe(&pdev->dev, -ENODEV, 1171 "no ethernet-ports child found\n"); 1172 1173 /* init switch */ 1174 lan966x_init(lan966x); 1175 lan966x_stats_init(lan966x); 1176 1177 /* go over the child nodes */ 1178 fwnode_for_each_available_child_node(ports, portnp) { 1179 phy_interface_t phy_mode; 1180 struct phy *serdes; 1181 u32 p; 1182 1183 if (fwnode_property_read_u32(portnp, "reg", &p)) 1184 continue; 1185 1186 phy_mode = fwnode_get_phy_mode(portnp); 1187 err = lan966x_probe_port(lan966x, p, phy_mode, portnp); 1188 if (err) 1189 goto cleanup_ports; 1190 1191 /* Read needed configuration */ 1192 lan966x->ports[p]->config.portmode = phy_mode; 1193 lan966x->ports[p]->fwnode = fwnode_handle_get(portnp); 1194 1195 serdes = devm_of_phy_optional_get(lan966x->dev, 1196 to_of_node(portnp), NULL); 1197 if (IS_ERR(serdes)) { 1198 err = PTR_ERR(serdes); 1199 goto cleanup_ports; 1200 } 1201 lan966x->ports[p]->serdes = serdes; 1202 1203 lan966x_port_init(lan966x->ports[p]); 1204 err = lan966x_xdp_port_init(lan966x->ports[p]); 1205 if (err) 1206 goto cleanup_ports; 1207 } 1208 1209 fwnode_handle_put(ports); 1210 1211 lan966x_mdb_init(lan966x); 1212 err = lan966x_fdb_init(lan966x); 1213 if (err) 1214 goto cleanup_ports; 1215 1216 err = lan966x_ptp_init(lan966x); 1217 if (err) 1218 goto cleanup_fdb; 1219 1220 err = lan966x_fdma_init(lan966x); 1221 if (err) 1222 goto cleanup_ptp; 1223 1224 err = lan966x_vcap_init(lan966x); 1225 if (err) 1226 goto cleanup_fdma; 1227 1228 lan966x_dcb_init(lan966x); 1229 1230 return 0; 1231 1232 cleanup_fdma: 1233 lan966x_fdma_deinit(lan966x); 1234 1235 cleanup_ptp: 1236 lan966x_ptp_deinit(lan966x); 1237 1238 cleanup_fdb: 1239 lan966x_fdb_deinit(lan966x); 1240 1241 cleanup_ports: 1242 fwnode_handle_put(ports); 1243 fwnode_handle_put(portnp); 1244 1245 lan966x_cleanup_ports(lan966x); 1246 1247 cancel_delayed_work_sync(&lan966x->stats_work); 1248 destroy_workqueue(lan966x->stats_queue); 1249 mutex_destroy(&lan966x->stats_lock); 1250 1251 return err; 1252 } 1253 1254 static int lan966x_remove(struct platform_device *pdev) 1255 { 1256 struct lan966x *lan966x = platform_get_drvdata(pdev); 1257 1258 lan966x_taprio_deinit(lan966x); 1259 lan966x_vcap_deinit(lan966x); 1260 lan966x_fdma_deinit(lan966x); 1261 lan966x_cleanup_ports(lan966x); 1262 1263 cancel_delayed_work_sync(&lan966x->stats_work); 1264 destroy_workqueue(lan966x->stats_queue); 1265 mutex_destroy(&lan966x->stats_lock); 1266 1267 lan966x_mac_purge_entries(lan966x); 1268 lan966x_mdb_deinit(lan966x); 1269 lan966x_fdb_deinit(lan966x); 1270 lan966x_ptp_deinit(lan966x); 1271 1272 debugfs_remove_recursive(lan966x->debugfs_root); 1273 1274 return 0; 1275 } 1276 1277 static struct platform_driver lan966x_driver = { 1278 .probe = lan966x_probe, 1279 .remove = lan966x_remove, 1280 .driver = { 1281 .name = "lan966x-switch", 1282 .of_match_table = lan966x_match, 1283 }, 1284 }; 1285 1286 static int __init lan966x_switch_driver_init(void) 1287 { 1288 int ret; 1289 1290 lan966x_register_notifier_blocks(); 1291 1292 ret = platform_driver_register(&lan966x_driver); 1293 if (ret) 1294 goto err; 1295 1296 return 0; 1297 1298 err: 1299 lan966x_unregister_notifier_blocks(); 1300 return ret; 1301 } 1302 1303 static void __exit lan966x_switch_driver_exit(void) 1304 { 1305 platform_driver_unregister(&lan966x_driver); 1306 lan966x_unregister_notifier_blocks(); 1307 } 1308 1309 module_init(lan966x_switch_driver_init); 1310 module_exit(lan966x_switch_driver_exit); 1311 1312 MODULE_DESCRIPTION("Microchip LAN966X switch driver"); 1313 MODULE_AUTHOR("Horatiu Vultur <horatiu.vultur@microchip.com>"); 1314 MODULE_LICENSE("Dual MIT/GPL"); 1315