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 /* Indicate 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_oam_type(void *ifh, u64 oam_type) 357 { 358 lan966x_ifh_set(ifh, oam_type, IFH_POS_PDU_TYPE, IFH_WID_PDU_TYPE); 359 } 360 361 static void lan966x_ifh_set_timestamp(void *ifh, u64 timestamp) 362 { 363 lan966x_ifh_set(ifh, timestamp, IFH_POS_TIMESTAMP, IFH_WID_TIMESTAMP); 364 } 365 366 static netdev_tx_t lan966x_port_xmit(struct sk_buff *skb, 367 struct net_device *dev) 368 { 369 struct lan966x_port *port = netdev_priv(dev); 370 struct lan966x *lan966x = port->lan966x; 371 __be32 ifh[IFH_LEN]; 372 int err; 373 374 memset(ifh, 0x0, sizeof(__be32) * IFH_LEN); 375 376 lan966x_ifh_set_bypass(ifh, 1); 377 lan966x_ifh_set_port(ifh, BIT_ULL(port->chip_port)); 378 lan966x_ifh_set_qos_class(ifh, skb->priority >= 7 ? 0x7 : skb->priority); 379 lan966x_ifh_set_ipv(ifh, skb->priority >= 7 ? 0x7 : skb->priority); 380 lan966x_ifh_set_vid(ifh, skb_vlan_tag_get(skb)); 381 382 if (port->lan966x->ptp && skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) { 383 err = lan966x_ptp_txtstamp_request(port, skb); 384 if (err) 385 return err; 386 387 lan966x_ifh_set_rew_op(ifh, LAN966X_SKB_CB(skb)->rew_op); 388 lan966x_ifh_set_oam_type(ifh, LAN966X_SKB_CB(skb)->pdu_type); 389 lan966x_ifh_set_timestamp(ifh, LAN966X_SKB_CB(skb)->ts_id); 390 } 391 392 spin_lock(&lan966x->tx_lock); 393 if (port->lan966x->fdma) 394 err = lan966x_fdma_xmit(skb, ifh, dev); 395 else 396 err = lan966x_port_ifh_xmit(skb, ifh, dev); 397 spin_unlock(&lan966x->tx_lock); 398 399 return err; 400 } 401 402 static int lan966x_port_change_mtu(struct net_device *dev, int new_mtu) 403 { 404 struct lan966x_port *port = netdev_priv(dev); 405 struct lan966x *lan966x = port->lan966x; 406 int old_mtu = dev->mtu; 407 int err; 408 409 lan_wr(DEV_MAC_MAXLEN_CFG_MAX_LEN_SET(LAN966X_HW_MTU(new_mtu)), 410 lan966x, DEV_MAC_MAXLEN_CFG(port->chip_port)); 411 WRITE_ONCE(dev->mtu, new_mtu); 412 413 if (!lan966x->fdma) 414 return 0; 415 416 err = lan966x_fdma_change_mtu(lan966x); 417 if (err) { 418 lan_wr(DEV_MAC_MAXLEN_CFG_MAX_LEN_SET(LAN966X_HW_MTU(old_mtu)), 419 lan966x, DEV_MAC_MAXLEN_CFG(port->chip_port)); 420 dev->mtu = old_mtu; 421 } 422 423 return err; 424 } 425 426 static int lan966x_mc_unsync(struct net_device *dev, const unsigned char *addr) 427 { 428 struct lan966x_port *port = netdev_priv(dev); 429 struct lan966x *lan966x = port->lan966x; 430 431 return lan966x_mac_forget(lan966x, addr, HOST_PVID, ENTRYTYPE_LOCKED); 432 } 433 434 static int lan966x_mc_sync(struct net_device *dev, const unsigned char *addr) 435 { 436 struct lan966x_port *port = netdev_priv(dev); 437 struct lan966x *lan966x = port->lan966x; 438 439 return lan966x_mac_cpu_learn(lan966x, addr, HOST_PVID); 440 } 441 442 static void lan966x_port_set_rx_mode(struct net_device *dev) 443 { 444 __dev_mc_sync(dev, lan966x_mc_sync, lan966x_mc_unsync); 445 } 446 447 static int lan966x_port_get_parent_id(struct net_device *dev, 448 struct netdev_phys_item_id *ppid) 449 { 450 struct lan966x_port *port = netdev_priv(dev); 451 struct lan966x *lan966x = port->lan966x; 452 453 ppid->id_len = sizeof(lan966x->base_mac); 454 memcpy(&ppid->id, &lan966x->base_mac, ppid->id_len); 455 456 return 0; 457 } 458 459 static int lan966x_port_hwtstamp_get(struct net_device *dev, 460 struct kernel_hwtstamp_config *cfg) 461 { 462 struct lan966x_port *port = netdev_priv(dev); 463 464 if (!port->lan966x->ptp) 465 return -EOPNOTSUPP; 466 467 lan966x_ptp_hwtstamp_get(port, cfg); 468 469 return 0; 470 } 471 472 static int lan966x_port_hwtstamp_set(struct net_device *dev, 473 struct kernel_hwtstamp_config *cfg, 474 struct netlink_ext_ack *extack) 475 { 476 struct lan966x_port *port = netdev_priv(dev); 477 int err; 478 479 if (cfg->source != HWTSTAMP_SOURCE_NETDEV && 480 cfg->source != HWTSTAMP_SOURCE_PHYLIB) 481 return -EOPNOTSUPP; 482 483 if (cfg->source == HWTSTAMP_SOURCE_NETDEV && !port->lan966x->ptp) 484 return -EOPNOTSUPP; 485 486 err = lan966x_ptp_setup_traps(port, cfg); 487 if (err) 488 return err; 489 490 if (cfg->source == HWTSTAMP_SOURCE_NETDEV) { 491 err = lan966x_ptp_hwtstamp_set(port, cfg, extack); 492 if (err) { 493 lan966x_ptp_del_traps(port); 494 return err; 495 } 496 } 497 498 return 0; 499 } 500 501 static const struct net_device_ops lan966x_port_netdev_ops = { 502 .ndo_open = lan966x_port_open, 503 .ndo_stop = lan966x_port_stop, 504 .ndo_start_xmit = lan966x_port_xmit, 505 .ndo_change_mtu = lan966x_port_change_mtu, 506 .ndo_set_rx_mode = lan966x_port_set_rx_mode, 507 .ndo_get_phys_port_name = lan966x_port_get_phys_port_name, 508 .ndo_get_stats64 = lan966x_stats_get, 509 .ndo_set_mac_address = lan966x_port_set_mac_address, 510 .ndo_get_port_parent_id = lan966x_port_get_parent_id, 511 .ndo_eth_ioctl = phy_do_ioctl, 512 .ndo_setup_tc = lan966x_tc_setup, 513 .ndo_bpf = lan966x_xdp, 514 .ndo_xdp_xmit = lan966x_xdp_xmit, 515 .ndo_hwtstamp_get = lan966x_port_hwtstamp_get, 516 .ndo_hwtstamp_set = lan966x_port_hwtstamp_set, 517 }; 518 519 bool lan966x_netdevice_check(const struct net_device *dev) 520 { 521 return dev->netdev_ops == &lan966x_port_netdev_ops; 522 } 523 524 bool lan966x_hw_offload(struct lan966x *lan966x, u32 port, struct sk_buff *skb) 525 { 526 u32 val; 527 528 /* The IGMP and MLD frames are not forward by the HW if 529 * multicast snooping is enabled, therefore don't mark as 530 * offload to allow the SW to forward the frames accordingly. 531 */ 532 val = lan_rd(lan966x, ANA_CPU_FWD_CFG(port)); 533 if (!(val & (ANA_CPU_FWD_CFG_IGMP_REDIR_ENA | 534 ANA_CPU_FWD_CFG_MLD_REDIR_ENA))) 535 return true; 536 537 if (eth_type_vlan(skb->protocol)) { 538 skb = skb_vlan_untag(skb); 539 if (unlikely(!skb)) 540 return false; 541 } 542 543 if (skb->protocol == htons(ETH_P_IP) && 544 ip_hdr(skb)->protocol == IPPROTO_IGMP) 545 return false; 546 547 if (IS_ENABLED(CONFIG_IPV6) && 548 skb->protocol == htons(ETH_P_IPV6) && 549 ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr) && 550 !ipv6_mc_check_mld(skb)) 551 return false; 552 553 return true; 554 } 555 556 static int lan966x_port_xtr_status(struct lan966x *lan966x, u8 grp) 557 { 558 return lan_rd(lan966x, QS_XTR_RD(grp)); 559 } 560 561 static int lan966x_port_xtr_ready(struct lan966x *lan966x, u8 grp) 562 { 563 u32 val; 564 565 return read_poll_timeout(lan966x_port_xtr_status, val, 566 val != XTR_NOT_READY, 567 READL_SLEEP_US, READL_TIMEOUT_US, false, 568 lan966x, grp); 569 } 570 571 static int lan966x_rx_frame_word(struct lan966x *lan966x, u8 grp, u32 *rval) 572 { 573 u32 bytes_valid; 574 u32 val; 575 int err; 576 577 val = lan_rd(lan966x, QS_XTR_RD(grp)); 578 if (val == XTR_NOT_READY) { 579 err = lan966x_port_xtr_ready(lan966x, grp); 580 if (err) 581 return -EIO; 582 } 583 584 switch (val) { 585 case XTR_ABORT: 586 return -EIO; 587 case XTR_EOF_0: 588 case XTR_EOF_1: 589 case XTR_EOF_2: 590 case XTR_EOF_3: 591 case XTR_PRUNED: 592 bytes_valid = XTR_VALID_BYTES(val); 593 val = lan_rd(lan966x, QS_XTR_RD(grp)); 594 if (val == XTR_ESCAPE) 595 *rval = lan_rd(lan966x, QS_XTR_RD(grp)); 596 else 597 *rval = val; 598 599 return bytes_valid; 600 case XTR_ESCAPE: 601 *rval = lan_rd(lan966x, QS_XTR_RD(grp)); 602 603 return 4; 604 default: 605 *rval = val; 606 607 return 4; 608 } 609 } 610 611 static u64 lan966x_ifh_get(u8 *ifh, size_t pos, size_t length) 612 { 613 u64 val = 0; 614 u8 v; 615 616 for (int i = 0; i < length ; i++) { 617 int j = pos + i; 618 int k = j % 8; 619 620 if (i == 0 || k == 0) 621 v = ifh[IFH_LEN_BYTES - (j / 8) - 1]; 622 623 if (v & (1 << k)) 624 val |= (1ULL << i); 625 } 626 627 return val; 628 } 629 630 void lan966x_ifh_get_src_port(void *ifh, u64 *src_port) 631 { 632 *src_port = lan966x_ifh_get(ifh, IFH_POS_SRCPORT, IFH_WID_SRCPORT); 633 } 634 635 static void lan966x_ifh_get_len(void *ifh, u64 *len) 636 { 637 *len = lan966x_ifh_get(ifh, IFH_POS_LEN, IFH_WID_LEN); 638 } 639 640 void lan966x_ifh_get_timestamp(void *ifh, u64 *timestamp) 641 { 642 *timestamp = lan966x_ifh_get(ifh, IFH_POS_TIMESTAMP, IFH_WID_TIMESTAMP); 643 } 644 645 static irqreturn_t lan966x_xtr_irq_handler(int irq, void *args) 646 { 647 struct lan966x *lan966x = args; 648 int i, grp = 0, err = 0; 649 650 if (!(lan_rd(lan966x, QS_XTR_DATA_PRESENT) & BIT(grp))) 651 return IRQ_NONE; 652 653 do { 654 u64 src_port, len, timestamp; 655 struct net_device *dev; 656 struct sk_buff *skb; 657 int sz = 0, buf_len; 658 u32 ifh[IFH_LEN]; 659 u32 *buf; 660 u32 val; 661 662 for (i = 0; i < IFH_LEN; i++) { 663 err = lan966x_rx_frame_word(lan966x, grp, &ifh[i]); 664 if (err != 4) 665 goto recover; 666 } 667 668 err = 0; 669 670 lan966x_ifh_get_src_port(ifh, &src_port); 671 lan966x_ifh_get_len(ifh, &len); 672 lan966x_ifh_get_timestamp(ifh, ×tamp); 673 674 WARN_ON(src_port >= lan966x->num_phys_ports); 675 676 dev = lan966x->ports[src_port]->dev; 677 skb = netdev_alloc_skb(dev, len); 678 if (unlikely(!skb)) { 679 netdev_err(dev, "Unable to allocate sk_buff\n"); 680 break; 681 } 682 buf_len = len - ETH_FCS_LEN; 683 buf = (u32 *)skb_put(skb, buf_len); 684 685 len = 0; 686 do { 687 sz = lan966x_rx_frame_word(lan966x, grp, &val); 688 if (sz < 0) { 689 kfree_skb(skb); 690 goto recover; 691 } 692 693 *buf++ = val; 694 len += sz; 695 } while (len < buf_len); 696 697 /* Read the FCS */ 698 sz = lan966x_rx_frame_word(lan966x, grp, &val); 699 if (sz < 0) { 700 kfree_skb(skb); 701 goto recover; 702 } 703 704 /* Update the statistics if part of the FCS was read before */ 705 len -= ETH_FCS_LEN - sz; 706 707 if (unlikely(dev->features & NETIF_F_RXFCS)) { 708 buf = (u32 *)skb_put(skb, ETH_FCS_LEN); 709 *buf = val; 710 } 711 712 lan966x_ptp_rxtstamp(lan966x, skb, src_port, timestamp); 713 skb->protocol = eth_type_trans(skb, dev); 714 715 if (lan966x->bridge_mask & BIT(src_port)) { 716 skb->offload_fwd_mark = 1; 717 718 skb_reset_network_header(skb); 719 if (!lan966x_hw_offload(lan966x, src_port, skb)) 720 skb->offload_fwd_mark = 0; 721 } 722 723 if (!skb_defer_rx_timestamp(skb)) 724 netif_rx(skb); 725 726 dev->stats.rx_bytes += len; 727 dev->stats.rx_packets++; 728 729 recover: 730 if (sz < 0 || err) 731 lan_rd(lan966x, QS_XTR_RD(grp)); 732 733 } while (lan_rd(lan966x, QS_XTR_DATA_PRESENT) & BIT(grp)); 734 735 return IRQ_HANDLED; 736 } 737 738 static irqreturn_t lan966x_ana_irq_handler(int irq, void *args) 739 { 740 struct lan966x *lan966x = args; 741 742 return lan966x_mac_irq_handler(lan966x); 743 } 744 745 static void lan966x_cleanup_ports(struct lan966x *lan966x) 746 { 747 struct lan966x_port *port; 748 int p; 749 750 for (p = 0; p < lan966x->num_phys_ports; p++) { 751 port = lan966x->ports[p]; 752 if (!port) 753 continue; 754 755 if (port->dev) 756 unregister_netdev(port->dev); 757 758 lan966x_xdp_port_deinit(port); 759 if (lan966x->fdma && lan966x->fdma_ndev == port->dev) 760 lan966x_fdma_netdev_deinit(lan966x, port->dev); 761 762 if (port->phylink) { 763 rtnl_lock(); 764 lan966x_port_stop(port->dev); 765 rtnl_unlock(); 766 phylink_destroy(port->phylink); 767 port->phylink = NULL; 768 } 769 770 if (port->fwnode) 771 fwnode_handle_put(port->fwnode); 772 } 773 774 disable_irq(lan966x->xtr_irq); 775 lan966x->xtr_irq = -ENXIO; 776 777 if (lan966x->ana_irq > 0) { 778 disable_irq(lan966x->ana_irq); 779 lan966x->ana_irq = -ENXIO; 780 } 781 782 if (lan966x->fdma) 783 devm_free_irq(lan966x->dev, lan966x->fdma_irq, lan966x); 784 785 if (lan966x->ptp_irq > 0) 786 devm_free_irq(lan966x->dev, lan966x->ptp_irq, lan966x); 787 788 if (lan966x->ptp_ext_irq > 0) 789 devm_free_irq(lan966x->dev, lan966x->ptp_ext_irq, lan966x); 790 } 791 792 static int lan966x_probe_port(struct lan966x *lan966x, u32 p, 793 phy_interface_t phy_mode, 794 struct fwnode_handle *portnp) 795 { 796 struct lan966x_port *port; 797 struct phylink *phylink; 798 struct net_device *dev; 799 int err; 800 801 if (p >= lan966x->num_phys_ports) 802 return -EINVAL; 803 804 dev = devm_alloc_etherdev_mqs(lan966x->dev, 805 sizeof(struct lan966x_port), 806 NUM_PRIO_QUEUES, 1); 807 if (!dev) 808 return -ENOMEM; 809 810 SET_NETDEV_DEV(dev, lan966x->dev); 811 port = netdev_priv(dev); 812 port->dev = dev; 813 port->lan966x = lan966x; 814 port->chip_port = p; 815 lan966x->ports[p] = port; 816 817 dev->max_mtu = ETH_MAX_MTU; 818 819 dev->netdev_ops = &lan966x_port_netdev_ops; 820 dev->ethtool_ops = &lan966x_ethtool_ops; 821 dev->features |= NETIF_F_HW_VLAN_CTAG_TX | 822 NETIF_F_HW_VLAN_STAG_TX | 823 NETIF_F_HW_TC; 824 dev->hw_features |= NETIF_F_HW_TC; 825 dev->see_all_hwtstamp_requests = true; 826 dev->needed_headroom = IFH_LEN_BYTES; 827 828 eth_hw_addr_gen(dev, lan966x->base_mac, p + 1); 829 830 lan966x_mac_learn(lan966x, PGID_CPU, dev->dev_addr, HOST_PVID, 831 ENTRYTYPE_LOCKED); 832 833 port->phylink_config.dev = &port->dev->dev; 834 port->phylink_config.type = PHYLINK_NETDEV; 835 port->phylink_pcs.poll = true; 836 port->phylink_pcs.ops = &lan966x_phylink_pcs_ops; 837 838 port->phylink_config.mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE | 839 MAC_10 | MAC_100 | MAC_1000FD | MAC_2500FD; 840 841 phy_interface_set_rgmii(port->phylink_config.supported_interfaces); 842 __set_bit(PHY_INTERFACE_MODE_MII, 843 port->phylink_config.supported_interfaces); 844 __set_bit(PHY_INTERFACE_MODE_GMII, 845 port->phylink_config.supported_interfaces); 846 __set_bit(PHY_INTERFACE_MODE_SGMII, 847 port->phylink_config.supported_interfaces); 848 __set_bit(PHY_INTERFACE_MODE_QSGMII, 849 port->phylink_config.supported_interfaces); 850 __set_bit(PHY_INTERFACE_MODE_QUSGMII, 851 port->phylink_config.supported_interfaces); 852 __set_bit(PHY_INTERFACE_MODE_1000BASEX, 853 port->phylink_config.supported_interfaces); 854 __set_bit(PHY_INTERFACE_MODE_2500BASEX, 855 port->phylink_config.supported_interfaces); 856 857 phylink = phylink_create(&port->phylink_config, 858 portnp, 859 phy_mode, 860 &lan966x_phylink_mac_ops); 861 if (IS_ERR(phylink)) { 862 port->dev = NULL; 863 return PTR_ERR(phylink); 864 } 865 866 port->phylink = phylink; 867 868 if (lan966x->fdma) 869 dev->xdp_features = NETDEV_XDP_ACT_BASIC | 870 NETDEV_XDP_ACT_REDIRECT | 871 NETDEV_XDP_ACT_NDO_XMIT; 872 873 err = register_netdev(dev); 874 if (err) { 875 dev_err(lan966x->dev, "register_netdev failed\n"); 876 return err; 877 } 878 879 lan966x_vlan_port_set_vlan_aware(port, 0); 880 lan966x_vlan_port_set_vid(port, HOST_PVID, false, false); 881 lan966x_vlan_port_apply(port); 882 883 return 0; 884 } 885 886 static void lan966x_init(struct lan966x *lan966x) 887 { 888 u32 p, i; 889 890 /* MAC table initialization */ 891 lan966x_mac_init(lan966x); 892 893 lan966x_vlan_init(lan966x); 894 895 /* Flush queues */ 896 lan_wr(lan_rd(lan966x, QS_XTR_FLUSH) | 897 GENMASK(1, 0), 898 lan966x, QS_XTR_FLUSH); 899 900 /* Allow to drain */ 901 mdelay(1); 902 903 /* All Queues normal */ 904 lan_wr(lan_rd(lan966x, QS_XTR_FLUSH) & 905 ~(GENMASK(1, 0)), 906 lan966x, QS_XTR_FLUSH); 907 908 /* Set MAC age time to default value, the entry is aged after 909 * 2 * AGE_PERIOD 910 */ 911 lan_wr(ANA_AUTOAGE_AGE_PERIOD_SET(BR_DEFAULT_AGEING_TIME / 2 / HZ), 912 lan966x, ANA_AUTOAGE); 913 914 /* Disable learning for frames discarded by VLAN ingress filtering */ 915 lan_rmw(ANA_ADVLEARN_VLAN_CHK_SET(1), 916 ANA_ADVLEARN_VLAN_CHK, 917 lan966x, ANA_ADVLEARN); 918 919 /* Setup frame ageing - "2 sec" - The unit is 6.5 us on lan966x */ 920 lan_wr(SYS_FRM_AGING_AGE_TX_ENA_SET(1) | 921 (20000000 / 65), 922 lan966x, SYS_FRM_AGING); 923 924 /* Map the 8 CPU extraction queues to CPU port */ 925 lan_wr(0, lan966x, QSYS_CPU_GROUP_MAP); 926 927 /* Do byte-swap and expect status after last data word 928 * Extraction: Mode: manual extraction) | Byte_swap 929 */ 930 lan_wr(QS_XTR_GRP_CFG_MODE_SET(lan966x->fdma ? 2 : 1) | 931 QS_XTR_GRP_CFG_BYTE_SWAP_SET(1), 932 lan966x, QS_XTR_GRP_CFG(0)); 933 934 /* Injection: Mode: manual injection | Byte_swap */ 935 lan_wr(QS_INJ_GRP_CFG_MODE_SET(lan966x->fdma ? 2 : 1) | 936 QS_INJ_GRP_CFG_BYTE_SWAP_SET(1), 937 lan966x, QS_INJ_GRP_CFG(0)); 938 939 lan_rmw(QS_INJ_CTRL_GAP_SIZE_SET(0), 940 QS_INJ_CTRL_GAP_SIZE, 941 lan966x, QS_INJ_CTRL(0)); 942 943 /* Enable IFH insertion/parsing on CPU ports */ 944 lan_wr(SYS_PORT_MODE_INCL_INJ_HDR_SET(1) | 945 SYS_PORT_MODE_INCL_XTR_HDR_SET(1), 946 lan966x, SYS_PORT_MODE(CPU_PORT)); 947 948 /* Setup flooding PGIDs */ 949 lan_wr(ANA_FLOODING_IPMC_FLD_MC4_DATA_SET(PGID_MCIPV4) | 950 ANA_FLOODING_IPMC_FLD_MC4_CTRL_SET(PGID_MC) | 951 ANA_FLOODING_IPMC_FLD_MC6_DATA_SET(PGID_MCIPV6) | 952 ANA_FLOODING_IPMC_FLD_MC6_CTRL_SET(PGID_MC), 953 lan966x, ANA_FLOODING_IPMC); 954 955 /* There are 8 priorities */ 956 for (i = 0; i < 8; ++i) 957 lan_rmw(ANA_FLOODING_FLD_MULTICAST_SET(PGID_MC) | 958 ANA_FLOODING_FLD_UNICAST_SET(PGID_UC) | 959 ANA_FLOODING_FLD_BROADCAST_SET(PGID_BC), 960 ANA_FLOODING_FLD_MULTICAST | 961 ANA_FLOODING_FLD_UNICAST | 962 ANA_FLOODING_FLD_BROADCAST, 963 lan966x, ANA_FLOODING(i)); 964 965 for (i = 0; i < PGID_ENTRIES; ++i) 966 /* Set all the entries to obey VLAN_VLAN */ 967 lan_rmw(ANA_PGID_CFG_OBEY_VLAN_SET(1), 968 ANA_PGID_CFG_OBEY_VLAN, 969 lan966x, ANA_PGID_CFG(i)); 970 971 for (p = 0; p < lan966x->num_phys_ports; p++) { 972 /* Disable bridging by default */ 973 lan_rmw(ANA_PGID_PGID_SET(0x0), 974 ANA_PGID_PGID, 975 lan966x, ANA_PGID(p + PGID_SRC)); 976 977 /* Do not forward BPDU frames to the front ports and copy them 978 * to CPU 979 */ 980 lan_wr(0xffff, lan966x, ANA_CPU_FWD_BPDU_CFG(p)); 981 } 982 983 /* Set source buffer size for each priority and each port to 1500 bytes */ 984 for (i = 0; i <= QSYS_Q_RSRV; ++i) { 985 lan_wr(1500 / 64, lan966x, QSYS_RES_CFG(i)); 986 lan_wr(1500 / 64, lan966x, QSYS_RES_CFG(512 + i)); 987 } 988 989 /* Enable switching to/from cpu port */ 990 lan_wr(QSYS_SW_PORT_MODE_PORT_ENA_SET(1) | 991 QSYS_SW_PORT_MODE_SCH_NEXT_CFG_SET(1) | 992 QSYS_SW_PORT_MODE_INGRESS_DROP_MODE_SET(1), 993 lan966x, QSYS_SW_PORT_MODE(CPU_PORT)); 994 995 /* Configure and enable the CPU port */ 996 lan_rmw(ANA_PGID_PGID_SET(0), 997 ANA_PGID_PGID, 998 lan966x, ANA_PGID(CPU_PORT)); 999 lan_rmw(ANA_PGID_PGID_SET(BIT(CPU_PORT)), 1000 ANA_PGID_PGID, 1001 lan966x, ANA_PGID(PGID_CPU)); 1002 1003 /* Multicast to all other ports */ 1004 lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0), 1005 ANA_PGID_PGID, 1006 lan966x, ANA_PGID(PGID_MC)); 1007 1008 /* This will be controlled by mrouter ports */ 1009 lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0), 1010 ANA_PGID_PGID, 1011 lan966x, ANA_PGID(PGID_MCIPV4)); 1012 1013 lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0), 1014 ANA_PGID_PGID, 1015 lan966x, ANA_PGID(PGID_MCIPV6)); 1016 1017 /* Unicast to all other ports */ 1018 lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0), 1019 ANA_PGID_PGID, 1020 lan966x, ANA_PGID(PGID_UC)); 1021 1022 /* Broadcast to the CPU port and to other ports */ 1023 lan_rmw(ANA_PGID_PGID_SET(BIT(CPU_PORT) | GENMASK(lan966x->num_phys_ports - 1, 0)), 1024 ANA_PGID_PGID, 1025 lan966x, ANA_PGID(PGID_BC)); 1026 1027 lan_wr(REW_PORT_CFG_NO_REWRITE_SET(1), 1028 lan966x, REW_PORT_CFG(CPU_PORT)); 1029 1030 lan_rmw(ANA_ANAINTR_INTR_ENA_SET(1), 1031 ANA_ANAINTR_INTR_ENA, 1032 lan966x, ANA_ANAINTR); 1033 1034 spin_lock_init(&lan966x->tx_lock); 1035 1036 lan966x_taprio_init(lan966x); 1037 } 1038 1039 static int lan966x_ram_init(struct lan966x *lan966x) 1040 { 1041 return lan_rd(lan966x, SYS_RAM_INIT); 1042 } 1043 1044 static int lan966x_reset_switch(struct lan966x *lan966x) 1045 { 1046 struct reset_control *switch_reset; 1047 int val = 0; 1048 int ret; 1049 1050 switch_reset = devm_reset_control_get_optional_shared(lan966x->dev, 1051 "switch"); 1052 if (IS_ERR(switch_reset)) 1053 return dev_err_probe(lan966x->dev, PTR_ERR(switch_reset), 1054 "Could not obtain switch reset"); 1055 1056 reset_control_reset(switch_reset); 1057 1058 /* Don't reinitialize the switch core, if it is already initialized. In 1059 * case it is initialized twice, some pointers inside the queue system 1060 * in HW will get corrupted and then after a while the queue system gets 1061 * full and no traffic is passing through the switch. The issue is seen 1062 * when loading and unloading the driver and sending traffic through the 1063 * switch. 1064 */ 1065 if (lan_rd(lan966x, SYS_RESET_CFG) & SYS_RESET_CFG_CORE_ENA) 1066 return 0; 1067 1068 lan_wr(SYS_RESET_CFG_CORE_ENA_SET(0), lan966x, SYS_RESET_CFG); 1069 lan_wr(SYS_RAM_INIT_RAM_INIT_SET(1), lan966x, SYS_RAM_INIT); 1070 ret = readx_poll_timeout(lan966x_ram_init, lan966x, 1071 val, (val & BIT(1)) == 0, READL_SLEEP_US, 1072 READL_TIMEOUT_US); 1073 if (ret) 1074 return ret; 1075 1076 lan_wr(SYS_RESET_CFG_CORE_ENA_SET(1), lan966x, SYS_RESET_CFG); 1077 1078 return 0; 1079 } 1080 1081 static int lan966x_probe(struct platform_device *pdev) 1082 { 1083 struct fwnode_handle *ports, *portnp; 1084 struct lan966x *lan966x; 1085 u8 mac_addr[ETH_ALEN]; 1086 int err; 1087 1088 lan966x = devm_kzalloc(&pdev->dev, sizeof(*lan966x), GFP_KERNEL); 1089 if (!lan966x) 1090 return -ENOMEM; 1091 1092 platform_set_drvdata(pdev, lan966x); 1093 lan966x->dev = &pdev->dev; 1094 1095 if (!device_get_mac_address(&pdev->dev, mac_addr)) { 1096 ether_addr_copy(lan966x->base_mac, mac_addr); 1097 } else { 1098 pr_info("MAC addr was not set, use random MAC\n"); 1099 eth_random_addr(lan966x->base_mac); 1100 lan966x->base_mac[5] &= 0xf0; 1101 } 1102 1103 err = lan966x_create_targets(pdev, lan966x); 1104 if (err) 1105 return dev_err_probe(&pdev->dev, err, 1106 "Failed to create targets"); 1107 1108 err = lan966x_reset_switch(lan966x); 1109 if (err) 1110 return dev_err_probe(&pdev->dev, err, "Reset failed"); 1111 1112 lan966x->num_phys_ports = NUM_PHYS_PORTS; 1113 lan966x->ports = devm_kcalloc(&pdev->dev, lan966x->num_phys_ports, 1114 sizeof(struct lan966x_port *), 1115 GFP_KERNEL); 1116 if (!lan966x->ports) 1117 return -ENOMEM; 1118 1119 /* There QS system has 32KB of memory */ 1120 lan966x->shared_queue_sz = LAN966X_BUFFER_MEMORY; 1121 1122 /* set irq */ 1123 lan966x->xtr_irq = platform_get_irq_byname(pdev, "xtr"); 1124 if (lan966x->xtr_irq < 0) 1125 return lan966x->xtr_irq; 1126 1127 err = devm_request_threaded_irq(&pdev->dev, lan966x->xtr_irq, NULL, 1128 lan966x_xtr_irq_handler, IRQF_ONESHOT, 1129 "frame extraction", lan966x); 1130 if (err) { 1131 pr_err("Unable to use xtr irq"); 1132 return -ENODEV; 1133 } 1134 1135 lan966x->ana_irq = platform_get_irq_byname(pdev, "ana"); 1136 if (lan966x->ana_irq > 0) { 1137 err = devm_request_threaded_irq(&pdev->dev, lan966x->ana_irq, NULL, 1138 lan966x_ana_irq_handler, IRQF_ONESHOT, 1139 "ana irq", lan966x); 1140 if (err) 1141 return dev_err_probe(&pdev->dev, err, "Unable to use ana irq"); 1142 } 1143 1144 lan966x->ptp_irq = platform_get_irq_byname(pdev, "ptp"); 1145 if (lan966x->ptp_irq > 0) { 1146 err = devm_request_threaded_irq(&pdev->dev, lan966x->ptp_irq, NULL, 1147 lan966x_ptp_irq_handler, IRQF_ONESHOT, 1148 "ptp irq", lan966x); 1149 if (err) 1150 return dev_err_probe(&pdev->dev, err, "Unable to use ptp irq"); 1151 1152 lan966x->ptp = 1; 1153 } 1154 1155 lan966x->fdma_irq = platform_get_irq_byname(pdev, "fdma"); 1156 if (lan966x->fdma_irq > 0) { 1157 err = devm_request_irq(&pdev->dev, lan966x->fdma_irq, 1158 lan966x_fdma_irq_handler, 0, 1159 "fdma irq", lan966x); 1160 if (err) 1161 return dev_err_probe(&pdev->dev, err, "Unable to use fdma irq"); 1162 1163 lan966x->fdma = true; 1164 } 1165 1166 if (lan966x->ptp) { 1167 lan966x->ptp_ext_irq = platform_get_irq_byname(pdev, "ptp-ext"); 1168 if (lan966x->ptp_ext_irq > 0) { 1169 err = devm_request_threaded_irq(&pdev->dev, 1170 lan966x->ptp_ext_irq, NULL, 1171 lan966x_ptp_ext_irq_handler, 1172 IRQF_ONESHOT, 1173 "ptp-ext irq", lan966x); 1174 if (err) 1175 return dev_err_probe(&pdev->dev, err, 1176 "Unable to use ptp-ext irq"); 1177 } 1178 } 1179 1180 ports = device_get_named_child_node(&pdev->dev, "ethernet-ports"); 1181 if (!ports) 1182 return dev_err_probe(&pdev->dev, -ENODEV, 1183 "no ethernet-ports child found\n"); 1184 1185 lan966x->debugfs_root = debugfs_create_dir("lan966x", NULL); 1186 1187 /* init switch */ 1188 lan966x_init(lan966x); 1189 lan966x_stats_init(lan966x); 1190 1191 /* go over the child nodes */ 1192 fwnode_for_each_available_child_node(ports, portnp) { 1193 phy_interface_t phy_mode; 1194 struct phy *serdes; 1195 u32 p; 1196 1197 if (fwnode_property_read_u32(portnp, "reg", &p)) 1198 continue; 1199 1200 phy_mode = fwnode_get_phy_mode(portnp); 1201 err = lan966x_probe_port(lan966x, p, phy_mode, portnp); 1202 if (err) 1203 goto cleanup_ports; 1204 1205 /* Read needed configuration */ 1206 lan966x->ports[p]->config.portmode = phy_mode; 1207 lan966x->ports[p]->fwnode = fwnode_handle_get(portnp); 1208 1209 serdes = devm_of_phy_optional_get(lan966x->dev, 1210 to_of_node(portnp), NULL); 1211 if (IS_ERR(serdes)) { 1212 err = PTR_ERR(serdes); 1213 goto cleanup_ports; 1214 } 1215 lan966x->ports[p]->serdes = serdes; 1216 1217 lan966x_port_init(lan966x->ports[p]); 1218 err = lan966x_xdp_port_init(lan966x->ports[p]); 1219 if (err) 1220 goto cleanup_ports; 1221 } 1222 1223 fwnode_handle_put(ports); 1224 1225 lan966x_mdb_init(lan966x); 1226 err = lan966x_fdb_init(lan966x); 1227 if (err) 1228 goto cleanup_ports; 1229 1230 err = lan966x_ptp_init(lan966x); 1231 if (err) 1232 goto cleanup_fdb; 1233 1234 err = lan966x_fdma_init(lan966x); 1235 if (err) 1236 goto cleanup_ptp; 1237 1238 err = lan966x_vcap_init(lan966x); 1239 if (err) 1240 goto cleanup_fdma; 1241 1242 lan966x_dcb_init(lan966x); 1243 1244 return 0; 1245 1246 cleanup_fdma: 1247 lan966x_fdma_deinit(lan966x); 1248 1249 cleanup_ptp: 1250 lan966x_ptp_deinit(lan966x); 1251 1252 cleanup_fdb: 1253 lan966x_fdb_deinit(lan966x); 1254 1255 cleanup_ports: 1256 fwnode_handle_put(ports); 1257 fwnode_handle_put(portnp); 1258 1259 lan966x_cleanup_ports(lan966x); 1260 1261 cancel_delayed_work_sync(&lan966x->stats_work); 1262 destroy_workqueue(lan966x->stats_queue); 1263 mutex_destroy(&lan966x->stats_lock); 1264 1265 debugfs_remove_recursive(lan966x->debugfs_root); 1266 1267 return err; 1268 } 1269 1270 static void lan966x_remove(struct platform_device *pdev) 1271 { 1272 struct lan966x *lan966x = platform_get_drvdata(pdev); 1273 1274 lan966x_taprio_deinit(lan966x); 1275 lan966x_vcap_deinit(lan966x); 1276 lan966x_fdma_deinit(lan966x); 1277 lan966x_cleanup_ports(lan966x); 1278 1279 cancel_delayed_work_sync(&lan966x->stats_work); 1280 destroy_workqueue(lan966x->stats_queue); 1281 mutex_destroy(&lan966x->stats_lock); 1282 1283 lan966x_mac_purge_entries(lan966x); 1284 lan966x_mdb_deinit(lan966x); 1285 lan966x_fdb_deinit(lan966x); 1286 lan966x_ptp_deinit(lan966x); 1287 1288 debugfs_remove_recursive(lan966x->debugfs_root); 1289 } 1290 1291 static struct platform_driver lan966x_driver = { 1292 .probe = lan966x_probe, 1293 .remove = lan966x_remove, 1294 .driver = { 1295 .name = "lan966x-switch", 1296 .of_match_table = lan966x_match, 1297 }, 1298 }; 1299 1300 static int __init lan966x_switch_driver_init(void) 1301 { 1302 int ret; 1303 1304 lan966x_register_notifier_blocks(); 1305 1306 ret = platform_driver_register(&lan966x_driver); 1307 if (ret) 1308 goto err; 1309 1310 return 0; 1311 1312 err: 1313 lan966x_unregister_notifier_blocks(); 1314 return ret; 1315 } 1316 1317 static void __exit lan966x_switch_driver_exit(void) 1318 { 1319 platform_driver_unregister(&lan966x_driver); 1320 lan966x_unregister_notifier_blocks(); 1321 } 1322 1323 module_init(lan966x_switch_driver_init); 1324 module_exit(lan966x_switch_driver_exit); 1325 1326 MODULE_DESCRIPTION("Microchip LAN966X switch driver"); 1327 MODULE_AUTHOR("Horatiu Vultur <horatiu.vultur@microchip.com>"); 1328 MODULE_LICENSE("Dual MIT/GPL"); 1329