Loading...
Note: File does not exist in v3.1.
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 /* 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
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 WRITE_ONCE(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 if (cfg->source == HWTSTAMP_SOURCE_NETDEV && !port->lan966x->ptp)
478 return -EOPNOTSUPP;
479
480 err = lan966x_ptp_setup_traps(port, cfg);
481 if (err)
482 return err;
483
484 if (cfg->source == HWTSTAMP_SOURCE_NETDEV) {
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, therefore 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->see_all_hwtstamp_requests = true;
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 if (!device_get_mac_address(&pdev->dev, mac_addr)) {
1091 ether_addr_copy(lan966x->base_mac, mac_addr);
1092 } else {
1093 pr_info("MAC addr was not set, use random MAC\n");
1094 eth_random_addr(lan966x->base_mac);
1095 lan966x->base_mac[5] &= 0xf0;
1096 }
1097
1098 err = lan966x_create_targets(pdev, lan966x);
1099 if (err)
1100 return dev_err_probe(&pdev->dev, err,
1101 "Failed to create targets");
1102
1103 err = lan966x_reset_switch(lan966x);
1104 if (err)
1105 return dev_err_probe(&pdev->dev, err, "Reset failed");
1106
1107 lan966x->num_phys_ports = NUM_PHYS_PORTS;
1108 lan966x->ports = devm_kcalloc(&pdev->dev, lan966x->num_phys_ports,
1109 sizeof(struct lan966x_port *),
1110 GFP_KERNEL);
1111 if (!lan966x->ports)
1112 return -ENOMEM;
1113
1114 /* There QS system has 32KB of memory */
1115 lan966x->shared_queue_sz = LAN966X_BUFFER_MEMORY;
1116
1117 /* set irq */
1118 lan966x->xtr_irq = platform_get_irq_byname(pdev, "xtr");
1119 if (lan966x->xtr_irq < 0)
1120 return lan966x->xtr_irq;
1121
1122 err = devm_request_threaded_irq(&pdev->dev, lan966x->xtr_irq, NULL,
1123 lan966x_xtr_irq_handler, IRQF_ONESHOT,
1124 "frame extraction", lan966x);
1125 if (err) {
1126 pr_err("Unable to use xtr irq");
1127 return -ENODEV;
1128 }
1129
1130 lan966x->ana_irq = platform_get_irq_byname(pdev, "ana");
1131 if (lan966x->ana_irq > 0) {
1132 err = devm_request_threaded_irq(&pdev->dev, lan966x->ana_irq, NULL,
1133 lan966x_ana_irq_handler, IRQF_ONESHOT,
1134 "ana irq", lan966x);
1135 if (err)
1136 return dev_err_probe(&pdev->dev, err, "Unable to use ana irq");
1137 }
1138
1139 lan966x->ptp_irq = platform_get_irq_byname(pdev, "ptp");
1140 if (lan966x->ptp_irq > 0) {
1141 err = devm_request_threaded_irq(&pdev->dev, lan966x->ptp_irq, NULL,
1142 lan966x_ptp_irq_handler, IRQF_ONESHOT,
1143 "ptp irq", lan966x);
1144 if (err)
1145 return dev_err_probe(&pdev->dev, err, "Unable to use ptp irq");
1146
1147 lan966x->ptp = 1;
1148 }
1149
1150 lan966x->fdma_irq = platform_get_irq_byname(pdev, "fdma");
1151 if (lan966x->fdma_irq > 0) {
1152 err = devm_request_irq(&pdev->dev, lan966x->fdma_irq,
1153 lan966x_fdma_irq_handler, 0,
1154 "fdma irq", lan966x);
1155 if (err)
1156 return dev_err_probe(&pdev->dev, err, "Unable to use fdma irq");
1157
1158 lan966x->fdma = true;
1159 }
1160
1161 if (lan966x->ptp) {
1162 lan966x->ptp_ext_irq = platform_get_irq_byname(pdev, "ptp-ext");
1163 if (lan966x->ptp_ext_irq > 0) {
1164 err = devm_request_threaded_irq(&pdev->dev,
1165 lan966x->ptp_ext_irq, NULL,
1166 lan966x_ptp_ext_irq_handler,
1167 IRQF_ONESHOT,
1168 "ptp-ext irq", lan966x);
1169 if (err)
1170 return dev_err_probe(&pdev->dev, err,
1171 "Unable to use ptp-ext irq");
1172 }
1173 }
1174
1175 ports = device_get_named_child_node(&pdev->dev, "ethernet-ports");
1176 if (!ports)
1177 return dev_err_probe(&pdev->dev, -ENODEV,
1178 "no ethernet-ports child found\n");
1179
1180 lan966x->debugfs_root = debugfs_create_dir("lan966x", NULL);
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 debugfs_remove_recursive(lan966x->debugfs_root);
1261
1262 return err;
1263}
1264
1265static void lan966x_remove(struct platform_device *pdev)
1266{
1267 struct lan966x *lan966x = platform_get_drvdata(pdev);
1268
1269 lan966x_taprio_deinit(lan966x);
1270 lan966x_vcap_deinit(lan966x);
1271 lan966x_fdma_deinit(lan966x);
1272 lan966x_cleanup_ports(lan966x);
1273
1274 cancel_delayed_work_sync(&lan966x->stats_work);
1275 destroy_workqueue(lan966x->stats_queue);
1276 mutex_destroy(&lan966x->stats_lock);
1277
1278 lan966x_mac_purge_entries(lan966x);
1279 lan966x_mdb_deinit(lan966x);
1280 lan966x_fdb_deinit(lan966x);
1281 lan966x_ptp_deinit(lan966x);
1282
1283 debugfs_remove_recursive(lan966x->debugfs_root);
1284}
1285
1286static struct platform_driver lan966x_driver = {
1287 .probe = lan966x_probe,
1288 .remove = lan966x_remove,
1289 .driver = {
1290 .name = "lan966x-switch",
1291 .of_match_table = lan966x_match,
1292 },
1293};
1294
1295static int __init lan966x_switch_driver_init(void)
1296{
1297 int ret;
1298
1299 lan966x_register_notifier_blocks();
1300
1301 ret = platform_driver_register(&lan966x_driver);
1302 if (ret)
1303 goto err;
1304
1305 return 0;
1306
1307err:
1308 lan966x_unregister_notifier_blocks();
1309 return ret;
1310}
1311
1312static void __exit lan966x_switch_driver_exit(void)
1313{
1314 platform_driver_unregister(&lan966x_driver);
1315 lan966x_unregister_notifier_blocks();
1316}
1317
1318module_init(lan966x_switch_driver_init);
1319module_exit(lan966x_switch_driver_exit);
1320
1321MODULE_DESCRIPTION("Microchip LAN966X switch driver");
1322MODULE_AUTHOR("Horatiu Vultur <horatiu.vultur@microchip.com>");
1323MODULE_LICENSE("Dual MIT/GPL");