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 break; 675 } 676 buf_len = len - ETH_FCS_LEN; 677 buf = (u32 *)skb_put(skb, buf_len); 678 679 len = 0; 680 do { 681 sz = lan966x_rx_frame_word(lan966x, grp, &val); 682 if (sz < 0) { 683 kfree_skb(skb); 684 goto recover; 685 } 686 687 *buf++ = val; 688 len += sz; 689 } while (len < buf_len); 690 691 /* Read the FCS */ 692 sz = lan966x_rx_frame_word(lan966x, grp, &val); 693 if (sz < 0) { 694 kfree_skb(skb); 695 goto recover; 696 } 697 698 /* Update the statistics if part of the FCS was read before */ 699 len -= ETH_FCS_LEN - sz; 700 701 if (unlikely(dev->features & NETIF_F_RXFCS)) { 702 buf = (u32 *)skb_put(skb, ETH_FCS_LEN); 703 *buf = val; 704 } 705 706 lan966x_ptp_rxtstamp(lan966x, skb, src_port, timestamp); 707 skb->protocol = eth_type_trans(skb, dev); 708 709 if (lan966x->bridge_mask & BIT(src_port)) { 710 skb->offload_fwd_mark = 1; 711 712 skb_reset_network_header(skb); 713 if (!lan966x_hw_offload(lan966x, src_port, skb)) 714 skb->offload_fwd_mark = 0; 715 } 716 717 if (!skb_defer_rx_timestamp(skb)) 718 netif_rx(skb); 719 720 dev->stats.rx_bytes += len; 721 dev->stats.rx_packets++; 722 723recover: 724 if (sz < 0 || err) 725 lan_rd(lan966x, QS_XTR_RD(grp)); 726 727 } while (lan_rd(lan966x, QS_XTR_DATA_PRESENT) & BIT(grp)); 728 729 return IRQ_HANDLED; 730} 731 732static irqreturn_t lan966x_ana_irq_handler(int irq, void *args) 733{ 734 struct lan966x *lan966x = args; 735 736 return lan966x_mac_irq_handler(lan966x); 737} 738 739static void lan966x_cleanup_ports(struct lan966x *lan966x) 740{ 741 struct lan966x_port *port; 742 int p; 743 744 for (p = 0; p < lan966x->num_phys_ports; p++) { 745 port = lan966x->ports[p]; 746 if (!port) 747 continue; 748 749 if (port->dev) 750 unregister_netdev(port->dev); 751 752 lan966x_xdp_port_deinit(port); 753 if (lan966x->fdma && lan966x->fdma_ndev == port->dev) 754 lan966x_fdma_netdev_deinit(lan966x, port->dev); 755 756 if (port->phylink) { 757 rtnl_lock(); 758 lan966x_port_stop(port->dev); 759 rtnl_unlock(); 760 phylink_destroy(port->phylink); 761 port->phylink = NULL; 762 } 763 764 if (port->fwnode) 765 fwnode_handle_put(port->fwnode); 766 } 767 768 disable_irq(lan966x->xtr_irq); 769 lan966x->xtr_irq = -ENXIO; 770 771 if (lan966x->ana_irq > 0) { 772 disable_irq(lan966x->ana_irq); 773 lan966x->ana_irq = -ENXIO; 774 } 775 776 if (lan966x->fdma) 777 devm_free_irq(lan966x->dev, lan966x->fdma_irq, lan966x); 778 779 if (lan966x->ptp_irq > 0) 780 devm_free_irq(lan966x->dev, lan966x->ptp_irq, lan966x); 781 782 if (lan966x->ptp_ext_irq > 0) 783 devm_free_irq(lan966x->dev, lan966x->ptp_ext_irq, lan966x); 784} 785 786static int lan966x_probe_port(struct lan966x *lan966x, u32 p, 787 phy_interface_t phy_mode, 788 struct fwnode_handle *portnp) 789{ 790 struct lan966x_port *port; 791 struct phylink *phylink; 792 struct net_device *dev; 793 int err; 794 795 if (p >= lan966x->num_phys_ports) 796 return -EINVAL; 797 798 dev = devm_alloc_etherdev_mqs(lan966x->dev, 799 sizeof(struct lan966x_port), 800 NUM_PRIO_QUEUES, 1); 801 if (!dev) 802 return -ENOMEM; 803 804 SET_NETDEV_DEV(dev, lan966x->dev); 805 port = netdev_priv(dev); 806 port->dev = dev; 807 port->lan966x = lan966x; 808 port->chip_port = p; 809 lan966x->ports[p] = port; 810 811 dev->max_mtu = ETH_MAX_MTU; 812 813 dev->netdev_ops = &lan966x_port_netdev_ops; 814 dev->ethtool_ops = &lan966x_ethtool_ops; 815 dev->features |= NETIF_F_HW_VLAN_CTAG_TX | 816 NETIF_F_HW_VLAN_STAG_TX | 817 NETIF_F_HW_TC; 818 dev->hw_features |= NETIF_F_HW_TC; 819 dev->priv_flags |= IFF_SEE_ALL_HWTSTAMP_REQUESTS; 820 dev->needed_headroom = IFH_LEN_BYTES; 821 822 eth_hw_addr_gen(dev, lan966x->base_mac, p + 1); 823 824 lan966x_mac_learn(lan966x, PGID_CPU, dev->dev_addr, HOST_PVID, 825 ENTRYTYPE_LOCKED); 826 827 port->phylink_config.dev = &port->dev->dev; 828 port->phylink_config.type = PHYLINK_NETDEV; 829 port->phylink_pcs.poll = true; 830 port->phylink_pcs.ops = &lan966x_phylink_pcs_ops; 831 port->phylink_pcs.neg_mode = true; 832 833 port->phylink_config.mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE | 834 MAC_10 | MAC_100 | MAC_1000FD | MAC_2500FD; 835 836 phy_interface_set_rgmii(port->phylink_config.supported_interfaces); 837 __set_bit(PHY_INTERFACE_MODE_MII, 838 port->phylink_config.supported_interfaces); 839 __set_bit(PHY_INTERFACE_MODE_GMII, 840 port->phylink_config.supported_interfaces); 841 __set_bit(PHY_INTERFACE_MODE_SGMII, 842 port->phylink_config.supported_interfaces); 843 __set_bit(PHY_INTERFACE_MODE_QSGMII, 844 port->phylink_config.supported_interfaces); 845 __set_bit(PHY_INTERFACE_MODE_QUSGMII, 846 port->phylink_config.supported_interfaces); 847 __set_bit(PHY_INTERFACE_MODE_1000BASEX, 848 port->phylink_config.supported_interfaces); 849 __set_bit(PHY_INTERFACE_MODE_2500BASEX, 850 port->phylink_config.supported_interfaces); 851 852 phylink = phylink_create(&port->phylink_config, 853 portnp, 854 phy_mode, 855 &lan966x_phylink_mac_ops); 856 if (IS_ERR(phylink)) { 857 port->dev = NULL; 858 return PTR_ERR(phylink); 859 } 860 861 port->phylink = phylink; 862 863 if (lan966x->fdma) 864 dev->xdp_features = NETDEV_XDP_ACT_BASIC | 865 NETDEV_XDP_ACT_REDIRECT | 866 NETDEV_XDP_ACT_NDO_XMIT; 867 868 err = register_netdev(dev); 869 if (err) { 870 dev_err(lan966x->dev, "register_netdev failed\n"); 871 return err; 872 } 873 874 lan966x_vlan_port_set_vlan_aware(port, 0); 875 lan966x_vlan_port_set_vid(port, HOST_PVID, false, false); 876 lan966x_vlan_port_apply(port); 877 878 return 0; 879} 880 881static void lan966x_init(struct lan966x *lan966x) 882{ 883 u32 p, i; 884 885 /* MAC table initialization */ 886 lan966x_mac_init(lan966x); 887 888 lan966x_vlan_init(lan966x); 889 890 /* Flush queues */ 891 lan_wr(lan_rd(lan966x, QS_XTR_FLUSH) | 892 GENMASK(1, 0), 893 lan966x, QS_XTR_FLUSH); 894 895 /* Allow to drain */ 896 mdelay(1); 897 898 /* All Queues normal */ 899 lan_wr(lan_rd(lan966x, QS_XTR_FLUSH) & 900 ~(GENMASK(1, 0)), 901 lan966x, QS_XTR_FLUSH); 902 903 /* Set MAC age time to default value, the entry is aged after 904 * 2 * AGE_PERIOD 905 */ 906 lan_wr(ANA_AUTOAGE_AGE_PERIOD_SET(BR_DEFAULT_AGEING_TIME / 2 / HZ), 907 lan966x, ANA_AUTOAGE); 908 909 /* Disable learning for frames discarded by VLAN ingress filtering */ 910 lan_rmw(ANA_ADVLEARN_VLAN_CHK_SET(1), 911 ANA_ADVLEARN_VLAN_CHK, 912 lan966x, ANA_ADVLEARN); 913 914 /* Setup frame ageing - "2 sec" - The unit is 6.5 us on lan966x */ 915 lan_wr(SYS_FRM_AGING_AGE_TX_ENA_SET(1) | 916 (20000000 / 65), 917 lan966x, SYS_FRM_AGING); 918 919 /* Map the 8 CPU extraction queues to CPU port */ 920 lan_wr(0, lan966x, QSYS_CPU_GROUP_MAP); 921 922 /* Do byte-swap and expect status after last data word 923 * Extraction: Mode: manual extraction) | Byte_swap 924 */ 925 lan_wr(QS_XTR_GRP_CFG_MODE_SET(lan966x->fdma ? 2 : 1) | 926 QS_XTR_GRP_CFG_BYTE_SWAP_SET(1), 927 lan966x, QS_XTR_GRP_CFG(0)); 928 929 /* Injection: Mode: manual injection | Byte_swap */ 930 lan_wr(QS_INJ_GRP_CFG_MODE_SET(lan966x->fdma ? 2 : 1) | 931 QS_INJ_GRP_CFG_BYTE_SWAP_SET(1), 932 lan966x, QS_INJ_GRP_CFG(0)); 933 934 lan_rmw(QS_INJ_CTRL_GAP_SIZE_SET(0), 935 QS_INJ_CTRL_GAP_SIZE, 936 lan966x, QS_INJ_CTRL(0)); 937 938 /* Enable IFH insertion/parsing on CPU ports */ 939 lan_wr(SYS_PORT_MODE_INCL_INJ_HDR_SET(1) | 940 SYS_PORT_MODE_INCL_XTR_HDR_SET(1), 941 lan966x, SYS_PORT_MODE(CPU_PORT)); 942 943 /* Setup flooding PGIDs */ 944 lan_wr(ANA_FLOODING_IPMC_FLD_MC4_DATA_SET(PGID_MCIPV4) | 945 ANA_FLOODING_IPMC_FLD_MC4_CTRL_SET(PGID_MC) | 946 ANA_FLOODING_IPMC_FLD_MC6_DATA_SET(PGID_MCIPV6) | 947 ANA_FLOODING_IPMC_FLD_MC6_CTRL_SET(PGID_MC), 948 lan966x, ANA_FLOODING_IPMC); 949 950 /* There are 8 priorities */ 951 for (i = 0; i < 8; ++i) 952 lan_rmw(ANA_FLOODING_FLD_MULTICAST_SET(PGID_MC) | 953 ANA_FLOODING_FLD_UNICAST_SET(PGID_UC) | 954 ANA_FLOODING_FLD_BROADCAST_SET(PGID_BC), 955 ANA_FLOODING_FLD_MULTICAST | 956 ANA_FLOODING_FLD_UNICAST | 957 ANA_FLOODING_FLD_BROADCAST, 958 lan966x, ANA_FLOODING(i)); 959 960 for (i = 0; i < PGID_ENTRIES; ++i) 961 /* Set all the entries to obey VLAN_VLAN */ 962 lan_rmw(ANA_PGID_CFG_OBEY_VLAN_SET(1), 963 ANA_PGID_CFG_OBEY_VLAN, 964 lan966x, ANA_PGID_CFG(i)); 965 966 for (p = 0; p < lan966x->num_phys_ports; p++) { 967 /* Disable bridging by default */ 968 lan_rmw(ANA_PGID_PGID_SET(0x0), 969 ANA_PGID_PGID, 970 lan966x, ANA_PGID(p + PGID_SRC)); 971 972 /* Do not forward BPDU frames to the front ports and copy them 973 * to CPU 974 */ 975 lan_wr(0xffff, lan966x, ANA_CPU_FWD_BPDU_CFG(p)); 976 } 977 978 /* Set source buffer size for each priority and each port to 1500 bytes */ 979 for (i = 0; i <= QSYS_Q_RSRV; ++i) { 980 lan_wr(1500 / 64, lan966x, QSYS_RES_CFG(i)); 981 lan_wr(1500 / 64, lan966x, QSYS_RES_CFG(512 + i)); 982 } 983 984 /* Enable switching to/from cpu port */ 985 lan_wr(QSYS_SW_PORT_MODE_PORT_ENA_SET(1) | 986 QSYS_SW_PORT_MODE_SCH_NEXT_CFG_SET(1) | 987 QSYS_SW_PORT_MODE_INGRESS_DROP_MODE_SET(1), 988 lan966x, QSYS_SW_PORT_MODE(CPU_PORT)); 989 990 /* Configure and enable the CPU port */ 991 lan_rmw(ANA_PGID_PGID_SET(0), 992 ANA_PGID_PGID, 993 lan966x, ANA_PGID(CPU_PORT)); 994 lan_rmw(ANA_PGID_PGID_SET(BIT(CPU_PORT)), 995 ANA_PGID_PGID, 996 lan966x, ANA_PGID(PGID_CPU)); 997 998 /* Multicast to all other ports */ 999 lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0), 1000 ANA_PGID_PGID, 1001 lan966x, ANA_PGID(PGID_MC)); 1002 1003 /* This will be controlled by mrouter ports */ 1004 lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0), 1005 ANA_PGID_PGID, 1006 lan966x, ANA_PGID(PGID_MCIPV4)); 1007 1008 lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0), 1009 ANA_PGID_PGID, 1010 lan966x, ANA_PGID(PGID_MCIPV6)); 1011 1012 /* Unicast to all other ports */ 1013 lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0), 1014 ANA_PGID_PGID, 1015 lan966x, ANA_PGID(PGID_UC)); 1016 1017 /* Broadcast to the CPU port and to other ports */ 1018 lan_rmw(ANA_PGID_PGID_SET(BIT(CPU_PORT) | GENMASK(lan966x->num_phys_ports - 1, 0)), 1019 ANA_PGID_PGID, 1020 lan966x, ANA_PGID(PGID_BC)); 1021 1022 lan_wr(REW_PORT_CFG_NO_REWRITE_SET(1), 1023 lan966x, REW_PORT_CFG(CPU_PORT)); 1024 1025 lan_rmw(ANA_ANAINTR_INTR_ENA_SET(1), 1026 ANA_ANAINTR_INTR_ENA, 1027 lan966x, ANA_ANAINTR); 1028 1029 spin_lock_init(&lan966x->tx_lock); 1030 1031 lan966x_taprio_init(lan966x); 1032} 1033 1034static int lan966x_ram_init(struct lan966x *lan966x) 1035{ 1036 return lan_rd(lan966x, SYS_RAM_INIT); 1037} 1038 1039static int lan966x_reset_switch(struct lan966x *lan966x) 1040{ 1041 struct reset_control *switch_reset; 1042 int val = 0; 1043 int ret; 1044 1045 switch_reset = devm_reset_control_get_optional_shared(lan966x->dev, 1046 "switch"); 1047 if (IS_ERR(switch_reset)) 1048 return dev_err_probe(lan966x->dev, PTR_ERR(switch_reset), 1049 "Could not obtain switch reset"); 1050 1051 reset_control_reset(switch_reset); 1052 1053 /* Don't reinitialize the switch core, if it is already initialized. In 1054 * case it is initialized twice, some pointers inside the queue system 1055 * in HW will get corrupted and then after a while the queue system gets 1056 * full and no traffic is passing through the switch. The issue is seen 1057 * when loading and unloading the driver and sending traffic through the 1058 * switch. 1059 */ 1060 if (lan_rd(lan966x, SYS_RESET_CFG) & SYS_RESET_CFG_CORE_ENA) 1061 return 0; 1062 1063 lan_wr(SYS_RESET_CFG_CORE_ENA_SET(0), lan966x, SYS_RESET_CFG); 1064 lan_wr(SYS_RAM_INIT_RAM_INIT_SET(1), lan966x, SYS_RAM_INIT); 1065 ret = readx_poll_timeout(lan966x_ram_init, lan966x, 1066 val, (val & BIT(1)) == 0, READL_SLEEP_US, 1067 READL_TIMEOUT_US); 1068 if (ret) 1069 return ret; 1070 1071 lan_wr(SYS_RESET_CFG_CORE_ENA_SET(1), lan966x, SYS_RESET_CFG); 1072 1073 return 0; 1074} 1075 1076static int lan966x_probe(struct platform_device *pdev) 1077{ 1078 struct fwnode_handle *ports, *portnp; 1079 struct lan966x *lan966x; 1080 u8 mac_addr[ETH_ALEN]; 1081 int err; 1082 1083 lan966x = devm_kzalloc(&pdev->dev, sizeof(*lan966x), GFP_KERNEL); 1084 if (!lan966x) 1085 return -ENOMEM; 1086 1087 platform_set_drvdata(pdev, lan966x); 1088 lan966x->dev = &pdev->dev; 1089 1090 lan966x->debugfs_root = debugfs_create_dir("lan966x", NULL); 1091 1092 if (!device_get_mac_address(&pdev->dev, mac_addr)) { 1093 ether_addr_copy(lan966x->base_mac, mac_addr); 1094 } else { 1095 pr_info("MAC addr was not set, use random MAC\n"); 1096 eth_random_addr(lan966x->base_mac); 1097 lan966x->base_mac[5] &= 0xf0; 1098 } 1099 1100 err = lan966x_create_targets(pdev, lan966x); 1101 if (err) 1102 return dev_err_probe(&pdev->dev, err, 1103 "Failed to create targets"); 1104 1105 err = lan966x_reset_switch(lan966x); 1106 if (err) 1107 return dev_err_probe(&pdev->dev, err, "Reset failed"); 1108 1109 lan966x->num_phys_ports = NUM_PHYS_PORTS; 1110 lan966x->ports = devm_kcalloc(&pdev->dev, lan966x->num_phys_ports, 1111 sizeof(struct lan966x_port *), 1112 GFP_KERNEL); 1113 if (!lan966x->ports) 1114 return -ENOMEM; 1115 1116 /* There QS system has 32KB of memory */ 1117 lan966x->shared_queue_sz = LAN966X_BUFFER_MEMORY; 1118 1119 /* set irq */ 1120 lan966x->xtr_irq = platform_get_irq_byname(pdev, "xtr"); 1121 if (lan966x->xtr_irq < 0) 1122 return lan966x->xtr_irq; 1123 1124 err = devm_request_threaded_irq(&pdev->dev, lan966x->xtr_irq, NULL, 1125 lan966x_xtr_irq_handler, IRQF_ONESHOT, 1126 "frame extraction", lan966x); 1127 if (err) { 1128 pr_err("Unable to use xtr irq"); 1129 return -ENODEV; 1130 } 1131 1132 lan966x->ana_irq = platform_get_irq_byname(pdev, "ana"); 1133 if (lan966x->ana_irq > 0) { 1134 err = devm_request_threaded_irq(&pdev->dev, lan966x->ana_irq, NULL, 1135 lan966x_ana_irq_handler, IRQF_ONESHOT, 1136 "ana irq", lan966x); 1137 if (err) 1138 return dev_err_probe(&pdev->dev, err, "Unable to use ana irq"); 1139 } 1140 1141 lan966x->ptp_irq = platform_get_irq_byname(pdev, "ptp"); 1142 if (lan966x->ptp_irq > 0) { 1143 err = devm_request_threaded_irq(&pdev->dev, lan966x->ptp_irq, NULL, 1144 lan966x_ptp_irq_handler, IRQF_ONESHOT, 1145 "ptp irq", lan966x); 1146 if (err) 1147 return dev_err_probe(&pdev->dev, err, "Unable to use ptp irq"); 1148 1149 lan966x->ptp = 1; 1150 } 1151 1152 lan966x->fdma_irq = platform_get_irq_byname(pdev, "fdma"); 1153 if (lan966x->fdma_irq > 0) { 1154 err = devm_request_irq(&pdev->dev, lan966x->fdma_irq, 1155 lan966x_fdma_irq_handler, 0, 1156 "fdma irq", lan966x); 1157 if (err) 1158 return dev_err_probe(&pdev->dev, err, "Unable to use fdma irq"); 1159 1160 lan966x->fdma = true; 1161 } 1162 1163 if (lan966x->ptp) { 1164 lan966x->ptp_ext_irq = platform_get_irq_byname(pdev, "ptp-ext"); 1165 if (lan966x->ptp_ext_irq > 0) { 1166 err = devm_request_threaded_irq(&pdev->dev, 1167 lan966x->ptp_ext_irq, NULL, 1168 lan966x_ptp_ext_irq_handler, 1169 IRQF_ONESHOT, 1170 "ptp-ext irq", lan966x); 1171 if (err) 1172 return dev_err_probe(&pdev->dev, err, 1173 "Unable to use ptp-ext irq"); 1174 } 1175 } 1176 1177 ports = device_get_named_child_node(&pdev->dev, "ethernet-ports"); 1178 if (!ports) 1179 return dev_err_probe(&pdev->dev, -ENODEV, 1180 "no ethernet-ports child found\n"); 1181 1182 /* init switch */ 1183 lan966x_init(lan966x); 1184 lan966x_stats_init(lan966x); 1185 1186 /* go over the child nodes */ 1187 fwnode_for_each_available_child_node(ports, portnp) { 1188 phy_interface_t phy_mode; 1189 struct phy *serdes; 1190 u32 p; 1191 1192 if (fwnode_property_read_u32(portnp, "reg", &p)) 1193 continue; 1194 1195 phy_mode = fwnode_get_phy_mode(portnp); 1196 err = lan966x_probe_port(lan966x, p, phy_mode, portnp); 1197 if (err) 1198 goto cleanup_ports; 1199 1200 /* Read needed configuration */ 1201 lan966x->ports[p]->config.portmode = phy_mode; 1202 lan966x->ports[p]->fwnode = fwnode_handle_get(portnp); 1203 1204 serdes = devm_of_phy_optional_get(lan966x->dev, 1205 to_of_node(portnp), NULL); 1206 if (IS_ERR(serdes)) { 1207 err = PTR_ERR(serdes); 1208 goto cleanup_ports; 1209 } 1210 lan966x->ports[p]->serdes = serdes; 1211 1212 lan966x_port_init(lan966x->ports[p]); 1213 err = lan966x_xdp_port_init(lan966x->ports[p]); 1214 if (err) 1215 goto cleanup_ports; 1216 } 1217 1218 fwnode_handle_put(ports); 1219 1220 lan966x_mdb_init(lan966x); 1221 err = lan966x_fdb_init(lan966x); 1222 if (err) 1223 goto cleanup_ports; 1224 1225 err = lan966x_ptp_init(lan966x); 1226 if (err) 1227 goto cleanup_fdb; 1228 1229 err = lan966x_fdma_init(lan966x); 1230 if (err) 1231 goto cleanup_ptp; 1232 1233 err = lan966x_vcap_init(lan966x); 1234 if (err) 1235 goto cleanup_fdma; 1236 1237 lan966x_dcb_init(lan966x); 1238 1239 return 0; 1240 1241cleanup_fdma: 1242 lan966x_fdma_deinit(lan966x); 1243 1244cleanup_ptp: 1245 lan966x_ptp_deinit(lan966x); 1246 1247cleanup_fdb: 1248 lan966x_fdb_deinit(lan966x); 1249 1250cleanup_ports: 1251 fwnode_handle_put(ports); 1252 fwnode_handle_put(portnp); 1253 1254 lan966x_cleanup_ports(lan966x); 1255 1256 cancel_delayed_work_sync(&lan966x->stats_work); 1257 destroy_workqueue(lan966x->stats_queue); 1258 mutex_destroy(&lan966x->stats_lock); 1259 1260 return err; 1261} 1262 1263static void lan966x_remove(struct platform_device *pdev) 1264{ 1265 struct lan966x *lan966x = platform_get_drvdata(pdev); 1266 1267 lan966x_taprio_deinit(lan966x); 1268 lan966x_vcap_deinit(lan966x); 1269 lan966x_fdma_deinit(lan966x); 1270 lan966x_cleanup_ports(lan966x); 1271 1272 cancel_delayed_work_sync(&lan966x->stats_work); 1273 destroy_workqueue(lan966x->stats_queue); 1274 mutex_destroy(&lan966x->stats_lock); 1275 1276 lan966x_mac_purge_entries(lan966x); 1277 lan966x_mdb_deinit(lan966x); 1278 lan966x_fdb_deinit(lan966x); 1279 lan966x_ptp_deinit(lan966x); 1280 1281 debugfs_remove_recursive(lan966x->debugfs_root); 1282} 1283 1284static struct platform_driver lan966x_driver = { 1285 .probe = lan966x_probe, 1286 .remove_new = lan966x_remove, 1287 .driver = { 1288 .name = "lan966x-switch", 1289 .of_match_table = lan966x_match, 1290 }, 1291}; 1292 1293static int __init lan966x_switch_driver_init(void) 1294{ 1295 int ret; 1296 1297 lan966x_register_notifier_blocks(); 1298 1299 ret = platform_driver_register(&lan966x_driver); 1300 if (ret) 1301 goto err; 1302 1303 return 0; 1304 1305err: 1306 lan966x_unregister_notifier_blocks(); 1307 return ret; 1308} 1309 1310static void __exit lan966x_switch_driver_exit(void) 1311{ 1312 platform_driver_unregister(&lan966x_driver); 1313 lan966x_unregister_notifier_blocks(); 1314} 1315 1316module_init(lan966x_switch_driver_init); 1317module_exit(lan966x_switch_driver_exit); 1318 1319MODULE_DESCRIPTION("Microchip LAN966X switch driver"); 1320MODULE_AUTHOR("Horatiu Vultur <horatiu.vultur@microchip.com>"); 1321MODULE_LICENSE("Dual MIT/GPL"); 1322