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 29static const struct of_device_id lan966x_match[] = { 30 { .compatible = "microchip,lan966x-switch" }, 31 { } 32}; 33MODULE_DEVICE_TABLE(of, lan966x_match); 34 35struct lan966x_main_io_resource { 36 enum lan966x_target id; 37 phys_addr_t offset; 38 int range; 39}; 40 41static 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 67static 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 107static 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 125static 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 151out: 152 eth_hw_addr_set(dev, addr->sa_data); 153 return ret; 154} 155 156static 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 169static 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 197static 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 208static int lan966x_port_inj_status(struct lan966x *lan966x) 209{ 210 return lan_rd(lan966x, QS_INJ_STATUS); 211} 212 213static 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 225static 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 300err: 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 308static 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 326void lan966x_ifh_set_bypass(void *ifh, u64 bypass) 327{ 328 lan966x_ifh_set(ifh, bypass, IFH_POS_BYPASS, IFH_WID_BYPASS); 329} 330 331void lan966x_ifh_set_port(void *ifh, u64 port) 332{ 333 lan966x_ifh_set(ifh, port, IFH_POS_DSTS, IFH_WID_DSTS); 334} 335 336static 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 341static void lan966x_ifh_set_ipv(void *ifh, u64 ipv) 342{ 343 lan966x_ifh_set(ifh, ipv, IFH_POS_IPV, IFH_WID_IPV); 344} 345 346static void lan966x_ifh_set_vid(void *ifh, u64 vid) 347{ 348 lan966x_ifh_set(ifh, vid, IFH_POS_TCI, IFH_WID_TCI); 349} 350 351static 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 356static void lan966x_ifh_set_timestamp(void *ifh, u64 timestamp) 357{ 358 lan966x_ifh_set(ifh, timestamp, IFH_POS_TIMESTAMP, IFH_WID_TIMESTAMP); 359} 360 361static 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 396static 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 420static 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 428static 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 436static void lan966x_port_set_rx_mode(struct net_device *dev) 437{ 438 __dev_mc_sync(dev, lan966x_mc_sync, lan966x_mc_unsync); 439} 440 441static 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 453static int lan966x_port_hwtstamp_get(struct net_device *dev, 454 struct kernel_hwtstamp_config *cfg) 455{ 456 struct lan966x_port *port = netdev_priv(dev); 457 458 if (!port->lan966x->ptp) 459 return -EOPNOTSUPP; 460 461 lan966x_ptp_hwtstamp_get(port, cfg); 462 463 return 0; 464} 465 466static int lan966x_port_hwtstamp_set(struct net_device *dev, 467 struct kernel_hwtstamp_config *cfg, 468 struct netlink_ext_ack *extack) 469{ 470 struct lan966x_port *port = netdev_priv(dev); 471 int err; 472 473 if (cfg->source != HWTSTAMP_SOURCE_NETDEV && 474 cfg->source != HWTSTAMP_SOURCE_PHYLIB) 475 return -EOPNOTSUPP; 476 477 err = lan966x_ptp_setup_traps(port, cfg); 478 if (err) 479 return err; 480 481 if (cfg->source == HWTSTAMP_SOURCE_NETDEV) { 482 if (!port->lan966x->ptp) 483 return -EOPNOTSUPP; 484 485 err = lan966x_ptp_hwtstamp_set(port, cfg, extack); 486 if (err) { 487 lan966x_ptp_del_traps(port); 488 return err; 489 } 490 } 491 492 return 0; 493} 494 495static const struct net_device_ops lan966x_port_netdev_ops = { 496 .ndo_open = lan966x_port_open, 497 .ndo_stop = lan966x_port_stop, 498 .ndo_start_xmit = lan966x_port_xmit, 499 .ndo_change_mtu = lan966x_port_change_mtu, 500 .ndo_set_rx_mode = lan966x_port_set_rx_mode, 501 .ndo_get_phys_port_name = lan966x_port_get_phys_port_name, 502 .ndo_get_stats64 = lan966x_stats_get, 503 .ndo_set_mac_address = lan966x_port_set_mac_address, 504 .ndo_get_port_parent_id = lan966x_port_get_parent_id, 505 .ndo_eth_ioctl = phy_do_ioctl, 506 .ndo_setup_tc = lan966x_tc_setup, 507 .ndo_bpf = lan966x_xdp, 508 .ndo_xdp_xmit = lan966x_xdp_xmit, 509 .ndo_hwtstamp_get = lan966x_port_hwtstamp_get, 510 .ndo_hwtstamp_set = lan966x_port_hwtstamp_set, 511}; 512 513bool lan966x_netdevice_check(const struct net_device *dev) 514{ 515 return dev->netdev_ops == &lan966x_port_netdev_ops; 516} 517 518bool lan966x_hw_offload(struct lan966x *lan966x, u32 port, struct sk_buff *skb) 519{ 520 u32 val; 521 522 /* The IGMP and MLD frames are not forward by the HW if 523 * multicast snooping is enabled, therefor don't mark as 524 * offload to allow the SW to forward the frames accordingly. 525 */ 526 val = lan_rd(lan966x, ANA_CPU_FWD_CFG(port)); 527 if (!(val & (ANA_CPU_FWD_CFG_IGMP_REDIR_ENA | 528 ANA_CPU_FWD_CFG_MLD_REDIR_ENA))) 529 return true; 530 531 if (eth_type_vlan(skb->protocol)) { 532 skb = skb_vlan_untag(skb); 533 if (unlikely(!skb)) 534 return false; 535 } 536 537 if (skb->protocol == htons(ETH_P_IP) && 538 ip_hdr(skb)->protocol == IPPROTO_IGMP) 539 return false; 540 541 if (IS_ENABLED(CONFIG_IPV6) && 542 skb->protocol == htons(ETH_P_IPV6) && 543 ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr) && 544 !ipv6_mc_check_mld(skb)) 545 return false; 546 547 return true; 548} 549 550static int lan966x_port_xtr_status(struct lan966x *lan966x, u8 grp) 551{ 552 return lan_rd(lan966x, QS_XTR_RD(grp)); 553} 554 555static int lan966x_port_xtr_ready(struct lan966x *lan966x, u8 grp) 556{ 557 u32 val; 558 559 return read_poll_timeout(lan966x_port_xtr_status, val, 560 val != XTR_NOT_READY, 561 READL_SLEEP_US, READL_TIMEOUT_US, false, 562 lan966x, grp); 563} 564 565static int lan966x_rx_frame_word(struct lan966x *lan966x, u8 grp, u32 *rval) 566{ 567 u32 bytes_valid; 568 u32 val; 569 int err; 570 571 val = lan_rd(lan966x, QS_XTR_RD(grp)); 572 if (val == XTR_NOT_READY) { 573 err = lan966x_port_xtr_ready(lan966x, grp); 574 if (err) 575 return -EIO; 576 } 577 578 switch (val) { 579 case XTR_ABORT: 580 return -EIO; 581 case XTR_EOF_0: 582 case XTR_EOF_1: 583 case XTR_EOF_2: 584 case XTR_EOF_3: 585 case XTR_PRUNED: 586 bytes_valid = XTR_VALID_BYTES(val); 587 val = lan_rd(lan966x, QS_XTR_RD(grp)); 588 if (val == XTR_ESCAPE) 589 *rval = lan_rd(lan966x, QS_XTR_RD(grp)); 590 else 591 *rval = val; 592 593 return bytes_valid; 594 case XTR_ESCAPE: 595 *rval = lan_rd(lan966x, QS_XTR_RD(grp)); 596 597 return 4; 598 default: 599 *rval = val; 600 601 return 4; 602 } 603} 604 605static u64 lan966x_ifh_get(u8 *ifh, size_t pos, size_t length) 606{ 607 u64 val = 0; 608 u8 v; 609 610 for (int i = 0; i < length ; i++) { 611 int j = pos + i; 612 int k = j % 8; 613 614 if (i == 0 || k == 0) 615 v = ifh[IFH_LEN_BYTES - (j / 8) - 1]; 616 617 if (v & (1 << k)) 618 val |= (1ULL << i); 619 } 620 621 return val; 622} 623 624void lan966x_ifh_get_src_port(void *ifh, u64 *src_port) 625{ 626 *src_port = lan966x_ifh_get(ifh, IFH_POS_SRCPORT, IFH_WID_SRCPORT); 627} 628 629static void lan966x_ifh_get_len(void *ifh, u64 *len) 630{ 631 *len = lan966x_ifh_get(ifh, IFH_POS_LEN, IFH_WID_LEN); 632} 633 634void lan966x_ifh_get_timestamp(void *ifh, u64 *timestamp) 635{ 636 *timestamp = lan966x_ifh_get(ifh, IFH_POS_TIMESTAMP, IFH_WID_TIMESTAMP); 637} 638 639static irqreturn_t lan966x_xtr_irq_handler(int irq, void *args) 640{ 641 struct lan966x *lan966x = args; 642 int i, grp = 0, err = 0; 643 644 if (!(lan_rd(lan966x, QS_XTR_DATA_PRESENT) & BIT(grp))) 645 return IRQ_NONE; 646 647 do { 648 u64 src_port, len, timestamp; 649 struct net_device *dev; 650 struct sk_buff *skb; 651 int sz = 0, buf_len; 652 u32 ifh[IFH_LEN]; 653 u32 *buf; 654 u32 val; 655 656 for (i = 0; i < IFH_LEN; i++) { 657 err = lan966x_rx_frame_word(lan966x, grp, &ifh[i]); 658 if (err != 4) 659 goto recover; 660 } 661 662 err = 0; 663 664 lan966x_ifh_get_src_port(ifh, &src_port); 665 lan966x_ifh_get_len(ifh, &len); 666 lan966x_ifh_get_timestamp(ifh, ×tamp); 667 668 WARN_ON(src_port >= lan966x->num_phys_ports); 669 670 dev = lan966x->ports[src_port]->dev; 671 skb = netdev_alloc_skb(dev, len); 672 if (unlikely(!skb)) { 673 netdev_err(dev, "Unable to allocate sk_buff\n"); 674 err = -ENOMEM; 675 break; 676 } 677 buf_len = len - ETH_FCS_LEN; 678 buf = (u32 *)skb_put(skb, buf_len); 679 680 len = 0; 681 do { 682 sz = lan966x_rx_frame_word(lan966x, grp, &val); 683 if (sz < 0) { 684 kfree_skb(skb); 685 goto recover; 686 } 687 688 *buf++ = val; 689 len += sz; 690 } while (len < buf_len); 691 692 /* Read the FCS */ 693 sz = lan966x_rx_frame_word(lan966x, grp, &val); 694 if (sz < 0) { 695 kfree_skb(skb); 696 goto recover; 697 } 698 699 /* Update the statistics if part of the FCS was read before */ 700 len -= ETH_FCS_LEN - sz; 701 702 if (unlikely(dev->features & NETIF_F_RXFCS)) { 703 buf = (u32 *)skb_put(skb, ETH_FCS_LEN); 704 *buf = val; 705 } 706 707 lan966x_ptp_rxtstamp(lan966x, skb, src_port, timestamp); 708 skb->protocol = eth_type_trans(skb, dev); 709 710 if (lan966x->bridge_mask & BIT(src_port)) { 711 skb->offload_fwd_mark = 1; 712 713 skb_reset_network_header(skb); 714 if (!lan966x_hw_offload(lan966x, src_port, skb)) 715 skb->offload_fwd_mark = 0; 716 } 717 718 if (!skb_defer_rx_timestamp(skb)) 719 netif_rx(skb); 720 721 dev->stats.rx_bytes += len; 722 dev->stats.rx_packets++; 723 724recover: 725 if (sz < 0 || err) 726 lan_rd(lan966x, QS_XTR_RD(grp)); 727 728 } while (lan_rd(lan966x, QS_XTR_DATA_PRESENT) & BIT(grp)); 729 730 return IRQ_HANDLED; 731} 732 733static irqreturn_t lan966x_ana_irq_handler(int irq, void *args) 734{ 735 struct lan966x *lan966x = args; 736 737 return lan966x_mac_irq_handler(lan966x); 738} 739 740static void lan966x_cleanup_ports(struct lan966x *lan966x) 741{ 742 struct lan966x_port *port; 743 int p; 744 745 for (p = 0; p < lan966x->num_phys_ports; p++) { 746 port = lan966x->ports[p]; 747 if (!port) 748 continue; 749 750 if (port->dev) 751 unregister_netdev(port->dev); 752 753 lan966x_xdp_port_deinit(port); 754 if (lan966x->fdma && lan966x->fdma_ndev == port->dev) 755 lan966x_fdma_netdev_deinit(lan966x, port->dev); 756 757 if (port->phylink) { 758 rtnl_lock(); 759 lan966x_port_stop(port->dev); 760 rtnl_unlock(); 761 phylink_destroy(port->phylink); 762 port->phylink = NULL; 763 } 764 765 if (port->fwnode) 766 fwnode_handle_put(port->fwnode); 767 } 768 769 disable_irq(lan966x->xtr_irq); 770 lan966x->xtr_irq = -ENXIO; 771 772 if (lan966x->ana_irq > 0) { 773 disable_irq(lan966x->ana_irq); 774 lan966x->ana_irq = -ENXIO; 775 } 776 777 if (lan966x->fdma) 778 devm_free_irq(lan966x->dev, lan966x->fdma_irq, lan966x); 779 780 if (lan966x->ptp_irq > 0) 781 devm_free_irq(lan966x->dev, lan966x->ptp_irq, lan966x); 782 783 if (lan966x->ptp_ext_irq > 0) 784 devm_free_irq(lan966x->dev, lan966x->ptp_ext_irq, lan966x); 785} 786 787static int lan966x_probe_port(struct lan966x *lan966x, u32 p, 788 phy_interface_t phy_mode, 789 struct fwnode_handle *portnp) 790{ 791 struct lan966x_port *port; 792 struct phylink *phylink; 793 struct net_device *dev; 794 int err; 795 796 if (p >= lan966x->num_phys_ports) 797 return -EINVAL; 798 799 dev = devm_alloc_etherdev_mqs(lan966x->dev, 800 sizeof(struct lan966x_port), 801 NUM_PRIO_QUEUES, 1); 802 if (!dev) 803 return -ENOMEM; 804 805 SET_NETDEV_DEV(dev, lan966x->dev); 806 port = netdev_priv(dev); 807 port->dev = dev; 808 port->lan966x = lan966x; 809 port->chip_port = p; 810 lan966x->ports[p] = port; 811 812 dev->max_mtu = ETH_MAX_MTU; 813 814 dev->netdev_ops = &lan966x_port_netdev_ops; 815 dev->ethtool_ops = &lan966x_ethtool_ops; 816 dev->features |= NETIF_F_HW_VLAN_CTAG_TX | 817 NETIF_F_HW_VLAN_STAG_TX | 818 NETIF_F_HW_TC; 819 dev->hw_features |= NETIF_F_HW_TC; 820 dev->priv_flags |= IFF_SEE_ALL_HWTSTAMP_REQUESTS; 821 dev->needed_headroom = IFH_LEN_BYTES; 822 823 eth_hw_addr_gen(dev, lan966x->base_mac, p + 1); 824 825 lan966x_mac_learn(lan966x, PGID_CPU, dev->dev_addr, HOST_PVID, 826 ENTRYTYPE_LOCKED); 827 828 port->phylink_config.dev = &port->dev->dev; 829 port->phylink_config.type = PHYLINK_NETDEV; 830 port->phylink_pcs.poll = true; 831 port->phylink_pcs.ops = &lan966x_phylink_pcs_ops; 832 port->phylink_pcs.neg_mode = true; 833 834 port->phylink_config.mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE | 835 MAC_10 | MAC_100 | MAC_1000FD | MAC_2500FD; 836 837 phy_interface_set_rgmii(port->phylink_config.supported_interfaces); 838 __set_bit(PHY_INTERFACE_MODE_MII, 839 port->phylink_config.supported_interfaces); 840 __set_bit(PHY_INTERFACE_MODE_GMII, 841 port->phylink_config.supported_interfaces); 842 __set_bit(PHY_INTERFACE_MODE_SGMII, 843 port->phylink_config.supported_interfaces); 844 __set_bit(PHY_INTERFACE_MODE_QSGMII, 845 port->phylink_config.supported_interfaces); 846 __set_bit(PHY_INTERFACE_MODE_QUSGMII, 847 port->phylink_config.supported_interfaces); 848 __set_bit(PHY_INTERFACE_MODE_1000BASEX, 849 port->phylink_config.supported_interfaces); 850 __set_bit(PHY_INTERFACE_MODE_2500BASEX, 851 port->phylink_config.supported_interfaces); 852 853 phylink = phylink_create(&port->phylink_config, 854 portnp, 855 phy_mode, 856 &lan966x_phylink_mac_ops); 857 if (IS_ERR(phylink)) { 858 port->dev = NULL; 859 return PTR_ERR(phylink); 860 } 861 862 port->phylink = phylink; 863 864 if (lan966x->fdma) 865 dev->xdp_features = NETDEV_XDP_ACT_BASIC | 866 NETDEV_XDP_ACT_REDIRECT | 867 NETDEV_XDP_ACT_NDO_XMIT; 868 869 err = register_netdev(dev); 870 if (err) { 871 dev_err(lan966x->dev, "register_netdev failed\n"); 872 return err; 873 } 874 875 lan966x_vlan_port_set_vlan_aware(port, 0); 876 lan966x_vlan_port_set_vid(port, HOST_PVID, false, false); 877 lan966x_vlan_port_apply(port); 878 879 return 0; 880} 881 882static void lan966x_init(struct lan966x *lan966x) 883{ 884 u32 p, i; 885 886 /* MAC table initialization */ 887 lan966x_mac_init(lan966x); 888 889 lan966x_vlan_init(lan966x); 890 891 /* Flush queues */ 892 lan_wr(lan_rd(lan966x, QS_XTR_FLUSH) | 893 GENMASK(1, 0), 894 lan966x, QS_XTR_FLUSH); 895 896 /* Allow to drain */ 897 mdelay(1); 898 899 /* All Queues normal */ 900 lan_wr(lan_rd(lan966x, QS_XTR_FLUSH) & 901 ~(GENMASK(1, 0)), 902 lan966x, QS_XTR_FLUSH); 903 904 /* Set MAC age time to default value, the entry is aged after 905 * 2 * AGE_PERIOD 906 */ 907 lan_wr(ANA_AUTOAGE_AGE_PERIOD_SET(BR_DEFAULT_AGEING_TIME / 2 / HZ), 908 lan966x, ANA_AUTOAGE); 909 910 /* Disable learning for frames discarded by VLAN ingress filtering */ 911 lan_rmw(ANA_ADVLEARN_VLAN_CHK_SET(1), 912 ANA_ADVLEARN_VLAN_CHK, 913 lan966x, ANA_ADVLEARN); 914 915 /* Setup frame ageing - "2 sec" - The unit is 6.5 us on lan966x */ 916 lan_wr(SYS_FRM_AGING_AGE_TX_ENA_SET(1) | 917 (20000000 / 65), 918 lan966x, SYS_FRM_AGING); 919 920 /* Map the 8 CPU extraction queues to CPU port */ 921 lan_wr(0, lan966x, QSYS_CPU_GROUP_MAP); 922 923 /* Do byte-swap and expect status after last data word 924 * Extraction: Mode: manual extraction) | Byte_swap 925 */ 926 lan_wr(QS_XTR_GRP_CFG_MODE_SET(lan966x->fdma ? 2 : 1) | 927 QS_XTR_GRP_CFG_BYTE_SWAP_SET(1), 928 lan966x, QS_XTR_GRP_CFG(0)); 929 930 /* Injection: Mode: manual injection | Byte_swap */ 931 lan_wr(QS_INJ_GRP_CFG_MODE_SET(lan966x->fdma ? 2 : 1) | 932 QS_INJ_GRP_CFG_BYTE_SWAP_SET(1), 933 lan966x, QS_INJ_GRP_CFG(0)); 934 935 lan_rmw(QS_INJ_CTRL_GAP_SIZE_SET(0), 936 QS_INJ_CTRL_GAP_SIZE, 937 lan966x, QS_INJ_CTRL(0)); 938 939 /* Enable IFH insertion/parsing on CPU ports */ 940 lan_wr(SYS_PORT_MODE_INCL_INJ_HDR_SET(1) | 941 SYS_PORT_MODE_INCL_XTR_HDR_SET(1), 942 lan966x, SYS_PORT_MODE(CPU_PORT)); 943 944 /* Setup flooding PGIDs */ 945 lan_wr(ANA_FLOODING_IPMC_FLD_MC4_DATA_SET(PGID_MCIPV4) | 946 ANA_FLOODING_IPMC_FLD_MC4_CTRL_SET(PGID_MC) | 947 ANA_FLOODING_IPMC_FLD_MC6_DATA_SET(PGID_MCIPV6) | 948 ANA_FLOODING_IPMC_FLD_MC6_CTRL_SET(PGID_MC), 949 lan966x, ANA_FLOODING_IPMC); 950 951 /* There are 8 priorities */ 952 for (i = 0; i < 8; ++i) 953 lan_rmw(ANA_FLOODING_FLD_MULTICAST_SET(PGID_MC) | 954 ANA_FLOODING_FLD_UNICAST_SET(PGID_UC) | 955 ANA_FLOODING_FLD_BROADCAST_SET(PGID_BC), 956 ANA_FLOODING_FLD_MULTICAST | 957 ANA_FLOODING_FLD_UNICAST | 958 ANA_FLOODING_FLD_BROADCAST, 959 lan966x, ANA_FLOODING(i)); 960 961 for (i = 0; i < PGID_ENTRIES; ++i) 962 /* Set all the entries to obey VLAN_VLAN */ 963 lan_rmw(ANA_PGID_CFG_OBEY_VLAN_SET(1), 964 ANA_PGID_CFG_OBEY_VLAN, 965 lan966x, ANA_PGID_CFG(i)); 966 967 for (p = 0; p < lan966x->num_phys_ports; p++) { 968 /* Disable bridging by default */ 969 lan_rmw(ANA_PGID_PGID_SET(0x0), 970 ANA_PGID_PGID, 971 lan966x, ANA_PGID(p + PGID_SRC)); 972 973 /* Do not forward BPDU frames to the front ports and copy them 974 * to CPU 975 */ 976 lan_wr(0xffff, lan966x, ANA_CPU_FWD_BPDU_CFG(p)); 977 } 978 979 /* Set source buffer size for each priority and each port to 1500 bytes */ 980 for (i = 0; i <= QSYS_Q_RSRV; ++i) { 981 lan_wr(1500 / 64, lan966x, QSYS_RES_CFG(i)); 982 lan_wr(1500 / 64, lan966x, QSYS_RES_CFG(512 + i)); 983 } 984 985 /* Enable switching to/from cpu port */ 986 lan_wr(QSYS_SW_PORT_MODE_PORT_ENA_SET(1) | 987 QSYS_SW_PORT_MODE_SCH_NEXT_CFG_SET(1) | 988 QSYS_SW_PORT_MODE_INGRESS_DROP_MODE_SET(1), 989 lan966x, QSYS_SW_PORT_MODE(CPU_PORT)); 990 991 /* Configure and enable the CPU port */ 992 lan_rmw(ANA_PGID_PGID_SET(0), 993 ANA_PGID_PGID, 994 lan966x, ANA_PGID(CPU_PORT)); 995 lan_rmw(ANA_PGID_PGID_SET(BIT(CPU_PORT)), 996 ANA_PGID_PGID, 997 lan966x, ANA_PGID(PGID_CPU)); 998 999 /* Multicast to all other ports */ 1000 lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0), 1001 ANA_PGID_PGID, 1002 lan966x, ANA_PGID(PGID_MC)); 1003 1004 /* This will be controlled by mrouter ports */ 1005 lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0), 1006 ANA_PGID_PGID, 1007 lan966x, ANA_PGID(PGID_MCIPV4)); 1008 1009 lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0), 1010 ANA_PGID_PGID, 1011 lan966x, ANA_PGID(PGID_MCIPV6)); 1012 1013 /* Unicast to all other ports */ 1014 lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0), 1015 ANA_PGID_PGID, 1016 lan966x, ANA_PGID(PGID_UC)); 1017 1018 /* Broadcast to the CPU port and to other ports */ 1019 lan_rmw(ANA_PGID_PGID_SET(BIT(CPU_PORT) | GENMASK(lan966x->num_phys_ports - 1, 0)), 1020 ANA_PGID_PGID, 1021 lan966x, ANA_PGID(PGID_BC)); 1022 1023 lan_wr(REW_PORT_CFG_NO_REWRITE_SET(1), 1024 lan966x, REW_PORT_CFG(CPU_PORT)); 1025 1026 lan_rmw(ANA_ANAINTR_INTR_ENA_SET(1), 1027 ANA_ANAINTR_INTR_ENA, 1028 lan966x, ANA_ANAINTR); 1029 1030 spin_lock_init(&lan966x->tx_lock); 1031 1032 lan966x_taprio_init(lan966x); 1033} 1034 1035static int lan966x_ram_init(struct lan966x *lan966x) 1036{ 1037 return lan_rd(lan966x, SYS_RAM_INIT); 1038} 1039 1040static int lan966x_reset_switch(struct lan966x *lan966x) 1041{ 1042 struct reset_control *switch_reset; 1043 int val = 0; 1044 int ret; 1045 1046 switch_reset = devm_reset_control_get_optional_shared(lan966x->dev, 1047 "switch"); 1048 if (IS_ERR(switch_reset)) 1049 return dev_err_probe(lan966x->dev, PTR_ERR(switch_reset), 1050 "Could not obtain switch reset"); 1051 1052 reset_control_reset(switch_reset); 1053 1054 /* Don't reinitialize the switch core, if it is already initialized. In 1055 * case it is initialized twice, some pointers inside the queue system 1056 * in HW will get corrupted and then after a while the queue system gets 1057 * full and no traffic is passing through the switch. The issue is seen 1058 * when loading and unloading the driver and sending traffic through the 1059 * switch. 1060 */ 1061 if (lan_rd(lan966x, SYS_RESET_CFG) & SYS_RESET_CFG_CORE_ENA) 1062 return 0; 1063 1064 lan_wr(SYS_RESET_CFG_CORE_ENA_SET(0), lan966x, SYS_RESET_CFG); 1065 lan_wr(SYS_RAM_INIT_RAM_INIT_SET(1), lan966x, SYS_RAM_INIT); 1066 ret = readx_poll_timeout(lan966x_ram_init, lan966x, 1067 val, (val & BIT(1)) == 0, READL_SLEEP_US, 1068 READL_TIMEOUT_US); 1069 if (ret) 1070 return ret; 1071 1072 lan_wr(SYS_RESET_CFG_CORE_ENA_SET(1), lan966x, SYS_RESET_CFG); 1073 1074 return 0; 1075} 1076 1077static int lan966x_probe(struct platform_device *pdev) 1078{ 1079 struct fwnode_handle *ports, *portnp; 1080 struct lan966x *lan966x; 1081 u8 mac_addr[ETH_ALEN]; 1082 int err; 1083 1084 lan966x = devm_kzalloc(&pdev->dev, sizeof(*lan966x), GFP_KERNEL); 1085 if (!lan966x) 1086 return -ENOMEM; 1087 1088 platform_set_drvdata(pdev, lan966x); 1089 lan966x->dev = &pdev->dev; 1090 1091 lan966x->debugfs_root = debugfs_create_dir("lan966x", NULL); 1092 1093 if (!device_get_mac_address(&pdev->dev, mac_addr)) { 1094 ether_addr_copy(lan966x->base_mac, mac_addr); 1095 } else { 1096 pr_info("MAC addr was not set, use random MAC\n"); 1097 eth_random_addr(lan966x->base_mac); 1098 lan966x->base_mac[5] &= 0xf0; 1099 } 1100 1101 err = lan966x_create_targets(pdev, lan966x); 1102 if (err) 1103 return dev_err_probe(&pdev->dev, err, 1104 "Failed to create targets"); 1105 1106 err = lan966x_reset_switch(lan966x); 1107 if (err) 1108 return dev_err_probe(&pdev->dev, err, "Reset failed"); 1109 1110 lan966x->num_phys_ports = NUM_PHYS_PORTS; 1111 lan966x->ports = devm_kcalloc(&pdev->dev, lan966x->num_phys_ports, 1112 sizeof(struct lan966x_port *), 1113 GFP_KERNEL); 1114 if (!lan966x->ports) 1115 return -ENOMEM; 1116 1117 /* There QS system has 32KB of memory */ 1118 lan966x->shared_queue_sz = LAN966X_BUFFER_MEMORY; 1119 1120 /* set irq */ 1121 lan966x->xtr_irq = platform_get_irq_byname(pdev, "xtr"); 1122 if (lan966x->xtr_irq < 0) 1123 return lan966x->xtr_irq; 1124 1125 err = devm_request_threaded_irq(&pdev->dev, lan966x->xtr_irq, NULL, 1126 lan966x_xtr_irq_handler, IRQF_ONESHOT, 1127 "frame extraction", lan966x); 1128 if (err) { 1129 pr_err("Unable to use xtr irq"); 1130 return -ENODEV; 1131 } 1132 1133 lan966x->ana_irq = platform_get_irq_byname(pdev, "ana"); 1134 if (lan966x->ana_irq > 0) { 1135 err = devm_request_threaded_irq(&pdev->dev, lan966x->ana_irq, NULL, 1136 lan966x_ana_irq_handler, IRQF_ONESHOT, 1137 "ana irq", lan966x); 1138 if (err) 1139 return dev_err_probe(&pdev->dev, err, "Unable to use ana irq"); 1140 } 1141 1142 lan966x->ptp_irq = platform_get_irq_byname(pdev, "ptp"); 1143 if (lan966x->ptp_irq > 0) { 1144 err = devm_request_threaded_irq(&pdev->dev, lan966x->ptp_irq, NULL, 1145 lan966x_ptp_irq_handler, IRQF_ONESHOT, 1146 "ptp irq", lan966x); 1147 if (err) 1148 return dev_err_probe(&pdev->dev, err, "Unable to use ptp irq"); 1149 1150 lan966x->ptp = 1; 1151 } 1152 1153 lan966x->fdma_irq = platform_get_irq_byname(pdev, "fdma"); 1154 if (lan966x->fdma_irq > 0) { 1155 err = devm_request_irq(&pdev->dev, lan966x->fdma_irq, 1156 lan966x_fdma_irq_handler, 0, 1157 "fdma irq", lan966x); 1158 if (err) 1159 return dev_err_probe(&pdev->dev, err, "Unable to use fdma irq"); 1160 1161 lan966x->fdma = true; 1162 } 1163 1164 if (lan966x->ptp) { 1165 lan966x->ptp_ext_irq = platform_get_irq_byname(pdev, "ptp-ext"); 1166 if (lan966x->ptp_ext_irq > 0) { 1167 err = devm_request_threaded_irq(&pdev->dev, 1168 lan966x->ptp_ext_irq, NULL, 1169 lan966x_ptp_ext_irq_handler, 1170 IRQF_ONESHOT, 1171 "ptp-ext irq", lan966x); 1172 if (err) 1173 return dev_err_probe(&pdev->dev, err, 1174 "Unable to use ptp-ext irq"); 1175 } 1176 } 1177 1178 ports = device_get_named_child_node(&pdev->dev, "ethernet-ports"); 1179 if (!ports) 1180 return dev_err_probe(&pdev->dev, -ENODEV, 1181 "no ethernet-ports child found\n"); 1182 1183 /* init switch */ 1184 lan966x_init(lan966x); 1185 lan966x_stats_init(lan966x); 1186 1187 /* go over the child nodes */ 1188 fwnode_for_each_available_child_node(ports, portnp) { 1189 phy_interface_t phy_mode; 1190 struct phy *serdes; 1191 u32 p; 1192 1193 if (fwnode_property_read_u32(portnp, "reg", &p)) 1194 continue; 1195 1196 phy_mode = fwnode_get_phy_mode(portnp); 1197 err = lan966x_probe_port(lan966x, p, phy_mode, portnp); 1198 if (err) 1199 goto cleanup_ports; 1200 1201 /* Read needed configuration */ 1202 lan966x->ports[p]->config.portmode = phy_mode; 1203 lan966x->ports[p]->fwnode = fwnode_handle_get(portnp); 1204 1205 serdes = devm_of_phy_optional_get(lan966x->dev, 1206 to_of_node(portnp), NULL); 1207 if (IS_ERR(serdes)) { 1208 err = PTR_ERR(serdes); 1209 goto cleanup_ports; 1210 } 1211 lan966x->ports[p]->serdes = serdes; 1212 1213 lan966x_port_init(lan966x->ports[p]); 1214 err = lan966x_xdp_port_init(lan966x->ports[p]); 1215 if (err) 1216 goto cleanup_ports; 1217 } 1218 1219 fwnode_handle_put(ports); 1220 1221 lan966x_mdb_init(lan966x); 1222 err = lan966x_fdb_init(lan966x); 1223 if (err) 1224 goto cleanup_ports; 1225 1226 err = lan966x_ptp_init(lan966x); 1227 if (err) 1228 goto cleanup_fdb; 1229 1230 err = lan966x_fdma_init(lan966x); 1231 if (err) 1232 goto cleanup_ptp; 1233 1234 err = lan966x_vcap_init(lan966x); 1235 if (err) 1236 goto cleanup_fdma; 1237 1238 lan966x_dcb_init(lan966x); 1239 1240 return 0; 1241 1242cleanup_fdma: 1243 lan966x_fdma_deinit(lan966x); 1244 1245cleanup_ptp: 1246 lan966x_ptp_deinit(lan966x); 1247 1248cleanup_fdb: 1249 lan966x_fdb_deinit(lan966x); 1250 1251cleanup_ports: 1252 fwnode_handle_put(ports); 1253 fwnode_handle_put(portnp); 1254 1255 lan966x_cleanup_ports(lan966x); 1256 1257 cancel_delayed_work_sync(&lan966x->stats_work); 1258 destroy_workqueue(lan966x->stats_queue); 1259 mutex_destroy(&lan966x->stats_lock); 1260 1261 return err; 1262} 1263 1264static int lan966x_remove(struct platform_device *pdev) 1265{ 1266 struct lan966x *lan966x = platform_get_drvdata(pdev); 1267 1268 lan966x_taprio_deinit(lan966x); 1269 lan966x_vcap_deinit(lan966x); 1270 lan966x_fdma_deinit(lan966x); 1271 lan966x_cleanup_ports(lan966x); 1272 1273 cancel_delayed_work_sync(&lan966x->stats_work); 1274 destroy_workqueue(lan966x->stats_queue); 1275 mutex_destroy(&lan966x->stats_lock); 1276 1277 lan966x_mac_purge_entries(lan966x); 1278 lan966x_mdb_deinit(lan966x); 1279 lan966x_fdb_deinit(lan966x); 1280 lan966x_ptp_deinit(lan966x); 1281 1282 debugfs_remove_recursive(lan966x->debugfs_root); 1283 1284 return 0; 1285} 1286 1287static struct platform_driver lan966x_driver = { 1288 .probe = lan966x_probe, 1289 .remove = lan966x_remove, 1290 .driver = { 1291 .name = "lan966x-switch", 1292 .of_match_table = lan966x_match, 1293 }, 1294}; 1295 1296static int __init lan966x_switch_driver_init(void) 1297{ 1298 int ret; 1299 1300 lan966x_register_notifier_blocks(); 1301 1302 ret = platform_driver_register(&lan966x_driver); 1303 if (ret) 1304 goto err; 1305 1306 return 0; 1307 1308err: 1309 lan966x_unregister_notifier_blocks(); 1310 return ret; 1311} 1312 1313static void __exit lan966x_switch_driver_exit(void) 1314{ 1315 platform_driver_unregister(&lan966x_driver); 1316 lan966x_unregister_notifier_blocks(); 1317} 1318 1319module_init(lan966x_switch_driver_init); 1320module_exit(lan966x_switch_driver_exit); 1321 1322MODULE_DESCRIPTION("Microchip LAN966X switch driver"); 1323MODULE_AUTHOR("Horatiu Vultur <horatiu.vultur@microchip.com>"); 1324MODULE_LICENSE("Dual MIT/GPL"); 1325