2 * drivers/net/ethernet/mellanox/mlxsw/spectrum.c
3 * Copyright (c) 2015 Mellanox Technologies. All rights reserved.
4 * Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
5 * Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com>
6 * Copyright (c) 2015 Elad Raz <eladr@mellanox.com>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the names of the copyright holders nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
20 * Alternatively, this software may be distributed under the terms of the
21 * GNU General Public License ("GPL") version 2 as published by the Free
22 * Software Foundation.
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
37 #include <linux/kernel.h>
38 #include <linux/module.h>
39 #include <linux/types.h>
40 #include <linux/netdevice.h>
41 #include <linux/etherdevice.h>
42 #include <linux/ethtool.h>
43 #include <linux/slab.h>
44 #include <linux/device.h>
45 #include <linux/skbuff.h>
46 #include <linux/if_vlan.h>
47 #include <linux/if_bridge.h>
48 #include <linux/workqueue.h>
49 #include <linux/jiffies.h>
50 #include <linux/bitops.h>
51 #include <linux/list.h>
52 #include <linux/notifier.h>
53 #include <linux/dcbnl.h>
54 #include <linux/inetdevice.h>
55 #include <net/switchdev.h>
56 #include <generated/utsrelease.h>
57 #include <net/pkt_cls.h>
58 #include <net/tc_act/tc_mirred.h>
67 static const char mlxsw_sp_driver_name[] = "mlxsw_spectrum";
68 static const char mlxsw_sp_driver_version[] = "1.0";
74 MLXSW_ITEM32(tx, hdr, version, 0x00, 28, 4);
77 * Packet control type.
78 * 0 - Ethernet control (e.g. EMADs, LACP)
81 MLXSW_ITEM32(tx, hdr, ctl, 0x00, 26, 2);
84 * Packet protocol type. Must be set to 1 (Ethernet).
86 MLXSW_ITEM32(tx, hdr, proto, 0x00, 21, 3);
88 /* tx_hdr_rx_is_router
89 * Packet is sent from the router. Valid for data packets only.
91 MLXSW_ITEM32(tx, hdr, rx_is_router, 0x00, 19, 1);
94 * Indicates if the 'fid' field is valid and should be used for
95 * forwarding lookup. Valid for data packets only.
97 MLXSW_ITEM32(tx, hdr, fid_valid, 0x00, 16, 1);
100 * Switch partition ID. Must be set to 0.
102 MLXSW_ITEM32(tx, hdr, swid, 0x00, 12, 3);
104 /* tx_hdr_control_tclass
105 * Indicates if the packet should use the control TClass and not one
106 * of the data TClasses.
108 MLXSW_ITEM32(tx, hdr, control_tclass, 0x00, 6, 1);
111 * Egress TClass to be used on the egress device on the egress port.
113 MLXSW_ITEM32(tx, hdr, etclass, 0x00, 0, 4);
116 * Destination local port for unicast packets.
117 * Destination multicast ID for multicast packets.
119 * Control packets are directed to a specific egress port, while data
120 * packets are transmitted through the CPU port (0) into the switch partition,
121 * where forwarding rules are applied.
123 MLXSW_ITEM32(tx, hdr, port_mid, 0x04, 16, 16);
126 * Forwarding ID used for L2 forwarding lookup. Valid only if 'fid_valid' is
127 * set, otherwise calculated based on the packet's VID using VID to FID mapping.
128 * Valid for data packets only.
130 MLXSW_ITEM32(tx, hdr, fid, 0x08, 0, 16);
134 * 6 - Control packets
136 MLXSW_ITEM32(tx, hdr, type, 0x0C, 0, 4);
138 static bool mlxsw_sp_port_dev_check(const struct net_device *dev);
140 static void mlxsw_sp_txhdr_construct(struct sk_buff *skb,
141 const struct mlxsw_tx_info *tx_info)
143 char *txhdr = skb_push(skb, MLXSW_TXHDR_LEN);
145 memset(txhdr, 0, MLXSW_TXHDR_LEN);
147 mlxsw_tx_hdr_version_set(txhdr, MLXSW_TXHDR_VERSION_1);
148 mlxsw_tx_hdr_ctl_set(txhdr, MLXSW_TXHDR_ETH_CTL);
149 mlxsw_tx_hdr_proto_set(txhdr, MLXSW_TXHDR_PROTO_ETH);
150 mlxsw_tx_hdr_swid_set(txhdr, 0);
151 mlxsw_tx_hdr_control_tclass_set(txhdr, 1);
152 mlxsw_tx_hdr_port_mid_set(txhdr, tx_info->local_port);
153 mlxsw_tx_hdr_type_set(txhdr, MLXSW_TXHDR_TYPE_CONTROL);
156 static int mlxsw_sp_base_mac_get(struct mlxsw_sp *mlxsw_sp)
158 char spad_pl[MLXSW_REG_SPAD_LEN];
161 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(spad), spad_pl);
164 mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_sp->base_mac);
168 static int mlxsw_sp_span_init(struct mlxsw_sp *mlxsw_sp)
170 struct mlxsw_resources *resources;
173 resources = mlxsw_core_resources_get(mlxsw_sp->core);
174 if (!resources->max_span_valid)
177 mlxsw_sp->span.entries_count = resources->max_span;
178 mlxsw_sp->span.entries = kcalloc(mlxsw_sp->span.entries_count,
179 sizeof(struct mlxsw_sp_span_entry),
181 if (!mlxsw_sp->span.entries)
184 for (i = 0; i < mlxsw_sp->span.entries_count; i++)
185 INIT_LIST_HEAD(&mlxsw_sp->span.entries[i].bound_ports_list);
190 static void mlxsw_sp_span_fini(struct mlxsw_sp *mlxsw_sp)
194 for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
195 struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i];
197 WARN_ON_ONCE(!list_empty(&curr->bound_ports_list));
199 kfree(mlxsw_sp->span.entries);
202 static struct mlxsw_sp_span_entry *
203 mlxsw_sp_span_entry_create(struct mlxsw_sp_port *port)
205 struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
206 struct mlxsw_sp_span_entry *span_entry;
207 char mpat_pl[MLXSW_REG_MPAT_LEN];
208 u8 local_port = port->local_port;
213 /* find a free entry to use */
215 for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
216 if (!mlxsw_sp->span.entries[i].used) {
218 span_entry = &mlxsw_sp->span.entries[i];
225 /* create a new port analayzer entry for local_port */
226 mlxsw_reg_mpat_pack(mpat_pl, index, local_port, true);
227 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpat), mpat_pl);
231 span_entry->used = true;
232 span_entry->id = index;
233 span_entry->ref_count = 0;
234 span_entry->local_port = local_port;
238 static void mlxsw_sp_span_entry_destroy(struct mlxsw_sp *mlxsw_sp,
239 struct mlxsw_sp_span_entry *span_entry)
241 u8 local_port = span_entry->local_port;
242 char mpat_pl[MLXSW_REG_MPAT_LEN];
243 int pa_id = span_entry->id;
245 mlxsw_reg_mpat_pack(mpat_pl, pa_id, local_port, false);
246 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpat), mpat_pl);
247 span_entry->used = false;
250 struct mlxsw_sp_span_entry *mlxsw_sp_span_entry_find(struct mlxsw_sp_port *port)
252 struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
255 for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
256 struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i];
258 if (curr->used && curr->local_port == port->local_port)
264 struct mlxsw_sp_span_entry *mlxsw_sp_span_entry_get(struct mlxsw_sp_port *port)
266 struct mlxsw_sp_span_entry *span_entry;
268 span_entry = mlxsw_sp_span_entry_find(port);
270 span_entry->ref_count++;
274 return mlxsw_sp_span_entry_create(port);
277 static int mlxsw_sp_span_entry_put(struct mlxsw_sp *mlxsw_sp,
278 struct mlxsw_sp_span_entry *span_entry)
280 if (--span_entry->ref_count == 0)
281 mlxsw_sp_span_entry_destroy(mlxsw_sp, span_entry);
285 static bool mlxsw_sp_span_is_egress_mirror(struct mlxsw_sp_port *port)
287 struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
288 struct mlxsw_sp_span_inspected_port *p;
291 for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
292 struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i];
294 list_for_each_entry(p, &curr->bound_ports_list, list)
295 if (p->local_port == port->local_port &&
296 p->type == MLXSW_SP_SPAN_EGRESS)
303 static int mlxsw_sp_span_mtu_to_buffsize(int mtu)
305 return MLXSW_SP_BYTES_TO_CELLS(mtu * 5 / 2) + 1;
308 static int mlxsw_sp_span_port_mtu_update(struct mlxsw_sp_port *port, u16 mtu)
310 struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
311 char sbib_pl[MLXSW_REG_SBIB_LEN];
314 /* If port is egress mirrored, the shared buffer size should be
315 * updated according to the mtu value
317 if (mlxsw_sp_span_is_egress_mirror(port)) {
318 mlxsw_reg_sbib_pack(sbib_pl, port->local_port,
319 mlxsw_sp_span_mtu_to_buffsize(mtu));
320 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl);
322 netdev_err(port->dev, "Could not update shared buffer for mirroring\n");
330 static struct mlxsw_sp_span_inspected_port *
331 mlxsw_sp_span_entry_bound_port_find(struct mlxsw_sp_port *port,
332 struct mlxsw_sp_span_entry *span_entry)
334 struct mlxsw_sp_span_inspected_port *p;
336 list_for_each_entry(p, &span_entry->bound_ports_list, list)
337 if (port->local_port == p->local_port)
343 mlxsw_sp_span_inspected_port_bind(struct mlxsw_sp_port *port,
344 struct mlxsw_sp_span_entry *span_entry,
345 enum mlxsw_sp_span_type type)
347 struct mlxsw_sp_span_inspected_port *inspected_port;
348 struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
349 char mpar_pl[MLXSW_REG_MPAR_LEN];
350 char sbib_pl[MLXSW_REG_SBIB_LEN];
351 int pa_id = span_entry->id;
354 /* if it is an egress SPAN, bind a shared buffer to it */
355 if (type == MLXSW_SP_SPAN_EGRESS) {
356 mlxsw_reg_sbib_pack(sbib_pl, port->local_port,
357 mlxsw_sp_span_mtu_to_buffsize(port->dev->mtu));
358 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl);
360 netdev_err(port->dev, "Could not create shared buffer for mirroring\n");
365 /* bind the port to the SPAN entry */
366 mlxsw_reg_mpar_pack(mpar_pl, port->local_port, type, true, pa_id);
367 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpar), mpar_pl);
369 goto err_mpar_reg_write;
371 inspected_port = kzalloc(sizeof(*inspected_port), GFP_KERNEL);
372 if (!inspected_port) {
374 goto err_inspected_port_alloc;
376 inspected_port->local_port = port->local_port;
377 inspected_port->type = type;
378 list_add_tail(&inspected_port->list, &span_entry->bound_ports_list);
383 err_inspected_port_alloc:
384 if (type == MLXSW_SP_SPAN_EGRESS) {
385 mlxsw_reg_sbib_pack(sbib_pl, port->local_port, 0);
386 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl);
392 mlxsw_sp_span_inspected_port_unbind(struct mlxsw_sp_port *port,
393 struct mlxsw_sp_span_entry *span_entry,
394 enum mlxsw_sp_span_type type)
396 struct mlxsw_sp_span_inspected_port *inspected_port;
397 struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
398 char mpar_pl[MLXSW_REG_MPAR_LEN];
399 char sbib_pl[MLXSW_REG_SBIB_LEN];
400 int pa_id = span_entry->id;
402 inspected_port = mlxsw_sp_span_entry_bound_port_find(port, span_entry);
406 /* remove the inspected port */
407 mlxsw_reg_mpar_pack(mpar_pl, port->local_port, type, false, pa_id);
408 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpar), mpar_pl);
410 /* remove the SBIB buffer if it was egress SPAN */
411 if (type == MLXSW_SP_SPAN_EGRESS) {
412 mlxsw_reg_sbib_pack(sbib_pl, port->local_port, 0);
413 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl);
416 mlxsw_sp_span_entry_put(mlxsw_sp, span_entry);
418 list_del(&inspected_port->list);
419 kfree(inspected_port);
422 static int mlxsw_sp_span_mirror_add(struct mlxsw_sp_port *from,
423 struct mlxsw_sp_port *to,
424 enum mlxsw_sp_span_type type)
426 struct mlxsw_sp *mlxsw_sp = from->mlxsw_sp;
427 struct mlxsw_sp_span_entry *span_entry;
430 span_entry = mlxsw_sp_span_entry_get(to);
434 netdev_dbg(from->dev, "Adding inspected port to SPAN entry %d\n",
437 err = mlxsw_sp_span_inspected_port_bind(from, span_entry, type);
444 mlxsw_sp_span_entry_put(mlxsw_sp, span_entry);
448 static void mlxsw_sp_span_mirror_remove(struct mlxsw_sp_port *from,
449 struct mlxsw_sp_port *to,
450 enum mlxsw_sp_span_type type)
452 struct mlxsw_sp_span_entry *span_entry;
454 span_entry = mlxsw_sp_span_entry_find(to);
456 netdev_err(from->dev, "no span entry found\n");
460 netdev_dbg(from->dev, "removing inspected port from SPAN entry %d\n",
462 mlxsw_sp_span_inspected_port_unbind(from, span_entry, type);
465 static int mlxsw_sp_port_admin_status_set(struct mlxsw_sp_port *mlxsw_sp_port,
468 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
469 char paos_pl[MLXSW_REG_PAOS_LEN];
471 mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port,
472 is_up ? MLXSW_PORT_ADMIN_STATUS_UP :
473 MLXSW_PORT_ADMIN_STATUS_DOWN);
474 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(paos), paos_pl);
477 static int mlxsw_sp_port_dev_addr_set(struct mlxsw_sp_port *mlxsw_sp_port,
480 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
481 char ppad_pl[MLXSW_REG_PPAD_LEN];
483 mlxsw_reg_ppad_pack(ppad_pl, true, mlxsw_sp_port->local_port);
484 mlxsw_reg_ppad_mac_memcpy_to(ppad_pl, addr);
485 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppad), ppad_pl);
488 static int mlxsw_sp_port_dev_addr_init(struct mlxsw_sp_port *mlxsw_sp_port)
490 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
491 unsigned char *addr = mlxsw_sp_port->dev->dev_addr;
493 ether_addr_copy(addr, mlxsw_sp->base_mac);
494 addr[ETH_ALEN - 1] += mlxsw_sp_port->local_port;
495 return mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr);
498 static int mlxsw_sp_port_mtu_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu)
500 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
501 char pmtu_pl[MLXSW_REG_PMTU_LEN];
505 mtu += MLXSW_TXHDR_LEN + ETH_HLEN;
506 mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, 0);
507 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
510 max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl);
515 mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, mtu);
516 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
519 static int __mlxsw_sp_port_swid_set(struct mlxsw_sp *mlxsw_sp, u8 local_port,
522 char pspa_pl[MLXSW_REG_PSPA_LEN];
524 mlxsw_reg_pspa_pack(pspa_pl, swid, local_port);
525 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pspa), pspa_pl);
528 static int mlxsw_sp_port_swid_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 swid)
530 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
532 return __mlxsw_sp_port_swid_set(mlxsw_sp, mlxsw_sp_port->local_port,
536 static int mlxsw_sp_port_vp_mode_set(struct mlxsw_sp_port *mlxsw_sp_port,
539 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
540 char svpe_pl[MLXSW_REG_SVPE_LEN];
542 mlxsw_reg_svpe_pack(svpe_pl, mlxsw_sp_port->local_port, enable);
543 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svpe), svpe_pl);
546 int mlxsw_sp_port_vid_to_fid_set(struct mlxsw_sp_port *mlxsw_sp_port,
547 enum mlxsw_reg_svfa_mt mt, bool valid, u16 fid,
550 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
551 char svfa_pl[MLXSW_REG_SVFA_LEN];
553 mlxsw_reg_svfa_pack(svfa_pl, mlxsw_sp_port->local_port, mt, valid,
555 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svfa), svfa_pl);
558 static int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
559 u16 vid, bool learn_enable)
561 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
565 spvmlr_pl = kmalloc(MLXSW_REG_SPVMLR_LEN, GFP_KERNEL);
568 mlxsw_reg_spvmlr_pack(spvmlr_pl, mlxsw_sp_port->local_port, vid, vid,
570 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvmlr), spvmlr_pl);
576 mlxsw_sp_port_system_port_mapping_set(struct mlxsw_sp_port *mlxsw_sp_port)
578 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
579 char sspr_pl[MLXSW_REG_SSPR_LEN];
581 mlxsw_reg_sspr_pack(sspr_pl, mlxsw_sp_port->local_port);
582 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sspr), sspr_pl);
585 static int mlxsw_sp_port_module_info_get(struct mlxsw_sp *mlxsw_sp,
586 u8 local_port, u8 *p_module,
587 u8 *p_width, u8 *p_lane)
589 char pmlp_pl[MLXSW_REG_PMLP_LEN];
592 mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
593 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
596 *p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0);
597 *p_width = mlxsw_reg_pmlp_width_get(pmlp_pl);
598 *p_lane = mlxsw_reg_pmlp_tx_lane_get(pmlp_pl, 0);
602 static int mlxsw_sp_port_module_map(struct mlxsw_sp *mlxsw_sp, u8 local_port,
603 u8 module, u8 width, u8 lane)
605 char pmlp_pl[MLXSW_REG_PMLP_LEN];
608 mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
609 mlxsw_reg_pmlp_width_set(pmlp_pl, width);
610 for (i = 0; i < width; i++) {
611 mlxsw_reg_pmlp_module_set(pmlp_pl, i, module);
612 mlxsw_reg_pmlp_tx_lane_set(pmlp_pl, i, lane + i); /* Rx & Tx */
615 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
618 static int mlxsw_sp_port_module_unmap(struct mlxsw_sp *mlxsw_sp, u8 local_port)
620 char pmlp_pl[MLXSW_REG_PMLP_LEN];
622 mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
623 mlxsw_reg_pmlp_width_set(pmlp_pl, 0);
624 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
627 static int mlxsw_sp_port_open(struct net_device *dev)
629 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
632 err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
635 netif_start_queue(dev);
639 static int mlxsw_sp_port_stop(struct net_device *dev)
641 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
643 netif_stop_queue(dev);
644 return mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
647 static netdev_tx_t mlxsw_sp_port_xmit(struct sk_buff *skb,
648 struct net_device *dev)
650 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
651 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
652 struct mlxsw_sp_port_pcpu_stats *pcpu_stats;
653 const struct mlxsw_tx_info tx_info = {
654 .local_port = mlxsw_sp_port->local_port,
660 if (mlxsw_core_skb_transmit_busy(mlxsw_sp->core, &tx_info))
661 return NETDEV_TX_BUSY;
663 if (unlikely(skb_headroom(skb) < MLXSW_TXHDR_LEN)) {
664 struct sk_buff *skb_orig = skb;
666 skb = skb_realloc_headroom(skb, MLXSW_TXHDR_LEN);
668 this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
669 dev_kfree_skb_any(skb_orig);
674 if (eth_skb_pad(skb)) {
675 this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
679 mlxsw_sp_txhdr_construct(skb, &tx_info);
680 /* TX header is consumed by HW on the way so we shouldn't count its
681 * bytes as being sent.
683 len = skb->len - MLXSW_TXHDR_LEN;
685 /* Due to a race we might fail here because of a full queue. In that
686 * unlikely case we simply drop the packet.
688 err = mlxsw_core_skb_transmit(mlxsw_sp->core, skb, &tx_info);
691 pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
692 u64_stats_update_begin(&pcpu_stats->syncp);
693 pcpu_stats->tx_packets++;
694 pcpu_stats->tx_bytes += len;
695 u64_stats_update_end(&pcpu_stats->syncp);
697 this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
698 dev_kfree_skb_any(skb);
703 static void mlxsw_sp_set_rx_mode(struct net_device *dev)
707 static int mlxsw_sp_port_set_mac_address(struct net_device *dev, void *p)
709 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
710 struct sockaddr *addr = p;
713 if (!is_valid_ether_addr(addr->sa_data))
714 return -EADDRNOTAVAIL;
716 err = mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr->sa_data);
719 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
723 static void mlxsw_sp_pg_buf_pack(char *pbmc_pl, int pg_index, int mtu,
724 bool pause_en, bool pfc_en, u16 delay)
726 u16 pg_size = 2 * MLXSW_SP_BYTES_TO_CELLS(mtu);
728 delay = pfc_en ? mlxsw_sp_pfc_delay_get(mtu, delay) :
729 MLXSW_SP_PAUSE_DELAY;
731 if (pause_en || pfc_en)
732 mlxsw_reg_pbmc_lossless_buffer_pack(pbmc_pl, pg_index,
733 pg_size + delay, pg_size);
735 mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl, pg_index, pg_size);
738 int __mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, int mtu,
739 u8 *prio_tc, bool pause_en,
740 struct ieee_pfc *my_pfc)
742 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
743 u8 pfc_en = !!my_pfc ? my_pfc->pfc_en : 0;
744 u16 delay = !!my_pfc ? my_pfc->delay : 0;
745 char pbmc_pl[MLXSW_REG_PBMC_LEN];
748 mlxsw_reg_pbmc_pack(pbmc_pl, mlxsw_sp_port->local_port, 0, 0);
749 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl);
753 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
754 bool configure = false;
757 for (j = 0; j < IEEE_8021QAZ_MAX_TCS; j++) {
758 if (prio_tc[j] == i) {
759 pfc = pfc_en & BIT(j);
767 mlxsw_sp_pg_buf_pack(pbmc_pl, i, mtu, pause_en, pfc, delay);
770 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl);
773 static int mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port,
774 int mtu, bool pause_en)
776 u8 def_prio_tc[IEEE_8021QAZ_MAX_TCS] = {0};
777 bool dcb_en = !!mlxsw_sp_port->dcb.ets;
778 struct ieee_pfc *my_pfc;
781 prio_tc = dcb_en ? mlxsw_sp_port->dcb.ets->prio_tc : def_prio_tc;
782 my_pfc = dcb_en ? mlxsw_sp_port->dcb.pfc : NULL;
784 return __mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, prio_tc,
788 static int mlxsw_sp_port_change_mtu(struct net_device *dev, int mtu)
790 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
791 bool pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port);
794 err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, pause_en);
797 err = mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, mtu);
799 goto err_span_port_mtu_update;
800 err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, mtu);
802 goto err_port_mtu_set;
807 mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, dev->mtu);
808 err_span_port_mtu_update:
809 mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
813 static struct rtnl_link_stats64 *
814 mlxsw_sp_port_get_stats64(struct net_device *dev,
815 struct rtnl_link_stats64 *stats)
817 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
818 struct mlxsw_sp_port_pcpu_stats *p;
819 u64 rx_packets, rx_bytes, tx_packets, tx_bytes;
824 for_each_possible_cpu(i) {
825 p = per_cpu_ptr(mlxsw_sp_port->pcpu_stats, i);
827 start = u64_stats_fetch_begin_irq(&p->syncp);
828 rx_packets = p->rx_packets;
829 rx_bytes = p->rx_bytes;
830 tx_packets = p->tx_packets;
831 tx_bytes = p->tx_bytes;
832 } while (u64_stats_fetch_retry_irq(&p->syncp, start));
834 stats->rx_packets += rx_packets;
835 stats->rx_bytes += rx_bytes;
836 stats->tx_packets += tx_packets;
837 stats->tx_bytes += tx_bytes;
838 /* tx_dropped is u32, updated without syncp protection. */
839 tx_dropped += p->tx_dropped;
841 stats->tx_dropped = tx_dropped;
845 int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin,
846 u16 vid_end, bool is_member, bool untagged)
848 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
852 spvm_pl = kmalloc(MLXSW_REG_SPVM_LEN, GFP_KERNEL);
856 mlxsw_reg_spvm_pack(spvm_pl, mlxsw_sp_port->local_port, vid_begin,
857 vid_end, is_member, untagged);
858 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvm), spvm_pl);
863 static int mlxsw_sp_port_vp_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port)
865 enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
866 u16 vid, last_visited_vid;
869 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
870 err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, true, vid,
873 last_visited_vid = vid;
874 goto err_port_vid_to_fid_set;
878 err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, true);
880 last_visited_vid = VLAN_N_VID;
881 goto err_port_vid_to_fid_set;
886 err_port_vid_to_fid_set:
887 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid)
888 mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false, vid,
893 static int mlxsw_sp_port_vlan_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port)
895 enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
899 err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false);
903 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
904 err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false,
913 static struct mlxsw_sp_port *
914 mlxsw_sp_port_vport_create(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
916 struct mlxsw_sp_port *mlxsw_sp_vport;
918 mlxsw_sp_vport = kzalloc(sizeof(*mlxsw_sp_vport), GFP_KERNEL);
922 /* dev will be set correctly after the VLAN device is linked
923 * with the real device. In case of bridge SELF invocation, dev
926 mlxsw_sp_vport->dev = mlxsw_sp_port->dev;
927 mlxsw_sp_vport->mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
928 mlxsw_sp_vport->local_port = mlxsw_sp_port->local_port;
929 mlxsw_sp_vport->stp_state = BR_STATE_FORWARDING;
930 mlxsw_sp_vport->lagged = mlxsw_sp_port->lagged;
931 mlxsw_sp_vport->lag_id = mlxsw_sp_port->lag_id;
932 mlxsw_sp_vport->vport.vid = vid;
934 list_add(&mlxsw_sp_vport->vport.list, &mlxsw_sp_port->vports_list);
936 return mlxsw_sp_vport;
939 static void mlxsw_sp_port_vport_destroy(struct mlxsw_sp_port *mlxsw_sp_vport)
941 list_del(&mlxsw_sp_vport->vport.list);
942 kfree(mlxsw_sp_vport);
945 static int mlxsw_sp_port_add_vid(struct net_device *dev,
946 __be16 __always_unused proto, u16 vid)
948 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
949 struct mlxsw_sp_port *mlxsw_sp_vport;
950 bool untagged = vid == 1;
953 /* VLAN 0 is added to HW filter when device goes up, but it is
954 * reserved in our case, so simply return.
959 if (mlxsw_sp_port_vport_find(mlxsw_sp_port, vid))
962 mlxsw_sp_vport = mlxsw_sp_port_vport_create(mlxsw_sp_port, vid);
966 /* When adding the first VLAN interface on a bridged port we need to
967 * transition all the active 802.1Q bridge VLANs to use explicit
968 * {Port, VID} to FID mappings and set the port's mode to Virtual mode.
970 if (list_is_singular(&mlxsw_sp_port->vports_list)) {
971 err = mlxsw_sp_port_vp_mode_trans(mlxsw_sp_port);
973 goto err_port_vp_mode_trans;
976 err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false);
978 goto err_port_vid_learning_set;
980 err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, true, untagged);
982 goto err_port_add_vid;
987 mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true);
988 err_port_vid_learning_set:
989 if (list_is_singular(&mlxsw_sp_port->vports_list))
990 mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port);
991 err_port_vp_mode_trans:
992 mlxsw_sp_port_vport_destroy(mlxsw_sp_vport);
996 static int mlxsw_sp_port_kill_vid(struct net_device *dev,
997 __be16 __always_unused proto, u16 vid)
999 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1000 struct mlxsw_sp_port *mlxsw_sp_vport;
1001 struct mlxsw_sp_fid *f;
1003 /* VLAN 0 is removed from HW filter when device goes down, but
1004 * it is reserved in our case, so simply return.
1009 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
1010 if (WARN_ON(!mlxsw_sp_vport))
1013 mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, false, false);
1015 mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true);
1017 /* Drop FID reference. If this was the last reference the
1018 * resources will be freed.
1020 f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
1021 if (f && !WARN_ON(!f->leave))
1022 f->leave(mlxsw_sp_vport);
1024 /* When removing the last VLAN interface on a bridged port we need to
1025 * transition all active 802.1Q bridge VLANs to use VID to FID
1026 * mappings and set port's mode to VLAN mode.
1028 if (list_is_singular(&mlxsw_sp_port->vports_list))
1029 mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port);
1031 mlxsw_sp_port_vport_destroy(mlxsw_sp_vport);
1036 static int mlxsw_sp_port_get_phys_port_name(struct net_device *dev, char *name,
1039 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1040 u8 module = mlxsw_sp_port->mapping.module;
1041 u8 width = mlxsw_sp_port->mapping.width;
1042 u8 lane = mlxsw_sp_port->mapping.lane;
1045 if (!mlxsw_sp_port->split)
1046 err = snprintf(name, len, "p%d", module + 1);
1048 err = snprintf(name, len, "p%ds%d", module + 1,
1057 static struct mlxsw_sp_port_mall_tc_entry *
1058 mlxsw_sp_port_mirror_entry_find(struct mlxsw_sp_port *port,
1059 unsigned long cookie) {
1060 struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;
1062 list_for_each_entry(mall_tc_entry, &port->mall_tc_list, list)
1063 if (mall_tc_entry->cookie == cookie)
1064 return mall_tc_entry;
1070 mlxsw_sp_port_add_cls_matchall_mirror(struct mlxsw_sp_port *mlxsw_sp_port,
1071 struct tc_cls_matchall_offload *cls,
1072 const struct tc_action *a,
1075 struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;
1076 struct net *net = dev_net(mlxsw_sp_port->dev);
1077 enum mlxsw_sp_span_type span_type;
1078 struct mlxsw_sp_port *to_port;
1079 struct net_device *to_dev;
1083 ifindex = tcf_mirred_ifindex(a);
1084 to_dev = __dev_get_by_index(net, ifindex);
1086 netdev_err(mlxsw_sp_port->dev, "Could not find requested device\n");
1090 if (!mlxsw_sp_port_dev_check(to_dev)) {
1091 netdev_err(mlxsw_sp_port->dev, "Cannot mirror to a non-spectrum port");
1094 to_port = netdev_priv(to_dev);
1096 mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL);
1100 mall_tc_entry->cookie = cls->cookie;
1101 mall_tc_entry->type = MLXSW_SP_PORT_MALL_MIRROR;
1102 mall_tc_entry->mirror.to_local_port = to_port->local_port;
1103 mall_tc_entry->mirror.ingress = ingress;
1104 list_add_tail(&mall_tc_entry->list, &mlxsw_sp_port->mall_tc_list);
1106 span_type = ingress ? MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS;
1107 err = mlxsw_sp_span_mirror_add(mlxsw_sp_port, to_port, span_type);
1109 goto err_mirror_add;
1113 list_del(&mall_tc_entry->list);
1114 kfree(mall_tc_entry);
1118 static int mlxsw_sp_port_add_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port,
1120 struct tc_cls_matchall_offload *cls,
1123 const struct tc_action *a;
1126 if (!tc_single_action(cls->exts)) {
1127 netdev_err(mlxsw_sp_port->dev, "only singular actions are supported\n");
1131 tc_for_each_action(a, cls->exts) {
1132 if (!is_tcf_mirred_mirror(a) || protocol != htons(ETH_P_ALL))
1135 err = mlxsw_sp_port_add_cls_matchall_mirror(mlxsw_sp_port, cls,
1144 static void mlxsw_sp_port_del_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port,
1145 struct tc_cls_matchall_offload *cls)
1147 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1148 struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;
1149 enum mlxsw_sp_span_type span_type;
1150 struct mlxsw_sp_port *to_port;
1152 mall_tc_entry = mlxsw_sp_port_mirror_entry_find(mlxsw_sp_port,
1154 if (!mall_tc_entry) {
1155 netdev_dbg(mlxsw_sp_port->dev, "tc entry not found on port\n");
1159 switch (mall_tc_entry->type) {
1160 case MLXSW_SP_PORT_MALL_MIRROR:
1161 to_port = mlxsw_sp->ports[mall_tc_entry->mirror.to_local_port];
1162 span_type = mall_tc_entry->mirror.ingress ?
1163 MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS;
1165 mlxsw_sp_span_mirror_remove(mlxsw_sp_port, to_port, span_type);
1171 list_del(&mall_tc_entry->list);
1172 kfree(mall_tc_entry);
1175 static int mlxsw_sp_setup_tc(struct net_device *dev, u32 handle,
1176 __be16 proto, struct tc_to_netdev *tc)
1178 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1179 bool ingress = TC_H_MAJ(handle) == TC_H_MAJ(TC_H_INGRESS);
1181 if (tc->type == TC_SETUP_MATCHALL) {
1182 switch (tc->cls_mall->command) {
1183 case TC_CLSMATCHALL_REPLACE:
1184 return mlxsw_sp_port_add_cls_matchall(mlxsw_sp_port,
1188 case TC_CLSMATCHALL_DESTROY:
1189 mlxsw_sp_port_del_cls_matchall(mlxsw_sp_port,
1200 static const struct net_device_ops mlxsw_sp_port_netdev_ops = {
1201 .ndo_open = mlxsw_sp_port_open,
1202 .ndo_stop = mlxsw_sp_port_stop,
1203 .ndo_start_xmit = mlxsw_sp_port_xmit,
1204 .ndo_setup_tc = mlxsw_sp_setup_tc,
1205 .ndo_set_rx_mode = mlxsw_sp_set_rx_mode,
1206 .ndo_set_mac_address = mlxsw_sp_port_set_mac_address,
1207 .ndo_change_mtu = mlxsw_sp_port_change_mtu,
1208 .ndo_get_stats64 = mlxsw_sp_port_get_stats64,
1209 .ndo_vlan_rx_add_vid = mlxsw_sp_port_add_vid,
1210 .ndo_vlan_rx_kill_vid = mlxsw_sp_port_kill_vid,
1211 .ndo_neigh_construct = mlxsw_sp_router_neigh_construct,
1212 .ndo_neigh_destroy = mlxsw_sp_router_neigh_destroy,
1213 .ndo_fdb_add = switchdev_port_fdb_add,
1214 .ndo_fdb_del = switchdev_port_fdb_del,
1215 .ndo_fdb_dump = switchdev_port_fdb_dump,
1216 .ndo_bridge_setlink = switchdev_port_bridge_setlink,
1217 .ndo_bridge_getlink = switchdev_port_bridge_getlink,
1218 .ndo_bridge_dellink = switchdev_port_bridge_dellink,
1219 .ndo_get_phys_port_name = mlxsw_sp_port_get_phys_port_name,
1222 static void mlxsw_sp_port_get_drvinfo(struct net_device *dev,
1223 struct ethtool_drvinfo *drvinfo)
1225 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1226 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1228 strlcpy(drvinfo->driver, mlxsw_sp_driver_name, sizeof(drvinfo->driver));
1229 strlcpy(drvinfo->version, mlxsw_sp_driver_version,
1230 sizeof(drvinfo->version));
1231 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
1233 mlxsw_sp->bus_info->fw_rev.major,
1234 mlxsw_sp->bus_info->fw_rev.minor,
1235 mlxsw_sp->bus_info->fw_rev.subminor);
1236 strlcpy(drvinfo->bus_info, mlxsw_sp->bus_info->device_name,
1237 sizeof(drvinfo->bus_info));
1240 static void mlxsw_sp_port_get_pauseparam(struct net_device *dev,
1241 struct ethtool_pauseparam *pause)
1243 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1245 pause->rx_pause = mlxsw_sp_port->link.rx_pause;
1246 pause->tx_pause = mlxsw_sp_port->link.tx_pause;
1249 static int mlxsw_sp_port_pause_set(struct mlxsw_sp_port *mlxsw_sp_port,
1250 struct ethtool_pauseparam *pause)
1252 char pfcc_pl[MLXSW_REG_PFCC_LEN];
1254 mlxsw_reg_pfcc_pack(pfcc_pl, mlxsw_sp_port->local_port);
1255 mlxsw_reg_pfcc_pprx_set(pfcc_pl, pause->rx_pause);
1256 mlxsw_reg_pfcc_pptx_set(pfcc_pl, pause->tx_pause);
1258 return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pfcc),
1262 static int mlxsw_sp_port_set_pauseparam(struct net_device *dev,
1263 struct ethtool_pauseparam *pause)
1265 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1266 bool pause_en = pause->tx_pause || pause->rx_pause;
1269 if (mlxsw_sp_port->dcb.pfc && mlxsw_sp_port->dcb.pfc->pfc_en) {
1270 netdev_err(dev, "PFC already enabled on port\n");
1274 if (pause->autoneg) {
1275 netdev_err(dev, "PAUSE frames autonegotiation isn't supported\n");
1279 err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
1281 netdev_err(dev, "Failed to configure port's headroom\n");
1285 err = mlxsw_sp_port_pause_set(mlxsw_sp_port, pause);
1287 netdev_err(dev, "Failed to set PAUSE parameters\n");
1288 goto err_port_pause_configure;
1291 mlxsw_sp_port->link.rx_pause = pause->rx_pause;
1292 mlxsw_sp_port->link.tx_pause = pause->tx_pause;
1296 err_port_pause_configure:
1297 pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port);
1298 mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
1302 struct mlxsw_sp_port_hw_stats {
1303 char str[ETH_GSTRING_LEN];
1304 u64 (*getter)(char *payload);
1307 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_stats[] = {
1309 .str = "a_frames_transmitted_ok",
1310 .getter = mlxsw_reg_ppcnt_a_frames_transmitted_ok_get,
1313 .str = "a_frames_received_ok",
1314 .getter = mlxsw_reg_ppcnt_a_frames_received_ok_get,
1317 .str = "a_frame_check_sequence_errors",
1318 .getter = mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get,
1321 .str = "a_alignment_errors",
1322 .getter = mlxsw_reg_ppcnt_a_alignment_errors_get,
1325 .str = "a_octets_transmitted_ok",
1326 .getter = mlxsw_reg_ppcnt_a_octets_transmitted_ok_get,
1329 .str = "a_octets_received_ok",
1330 .getter = mlxsw_reg_ppcnt_a_octets_received_ok_get,
1333 .str = "a_multicast_frames_xmitted_ok",
1334 .getter = mlxsw_reg_ppcnt_a_multicast_frames_xmitted_ok_get,
1337 .str = "a_broadcast_frames_xmitted_ok",
1338 .getter = mlxsw_reg_ppcnt_a_broadcast_frames_xmitted_ok_get,
1341 .str = "a_multicast_frames_received_ok",
1342 .getter = mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get,
1345 .str = "a_broadcast_frames_received_ok",
1346 .getter = mlxsw_reg_ppcnt_a_broadcast_frames_received_ok_get,
1349 .str = "a_in_range_length_errors",
1350 .getter = mlxsw_reg_ppcnt_a_in_range_length_errors_get,
1353 .str = "a_out_of_range_length_field",
1354 .getter = mlxsw_reg_ppcnt_a_out_of_range_length_field_get,
1357 .str = "a_frame_too_long_errors",
1358 .getter = mlxsw_reg_ppcnt_a_frame_too_long_errors_get,
1361 .str = "a_symbol_error_during_carrier",
1362 .getter = mlxsw_reg_ppcnt_a_symbol_error_during_carrier_get,
1365 .str = "a_mac_control_frames_transmitted",
1366 .getter = mlxsw_reg_ppcnt_a_mac_control_frames_transmitted_get,
1369 .str = "a_mac_control_frames_received",
1370 .getter = mlxsw_reg_ppcnt_a_mac_control_frames_received_get,
1373 .str = "a_unsupported_opcodes_received",
1374 .getter = mlxsw_reg_ppcnt_a_unsupported_opcodes_received_get,
1377 .str = "a_pause_mac_ctrl_frames_received",
1378 .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_received_get,
1381 .str = "a_pause_mac_ctrl_frames_xmitted",
1382 .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_transmitted_get,
1386 #define MLXSW_SP_PORT_HW_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_stats)
1388 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_prio_stats[] = {
1390 .str = "rx_octets_prio",
1391 .getter = mlxsw_reg_ppcnt_rx_octets_get,
1394 .str = "rx_frames_prio",
1395 .getter = mlxsw_reg_ppcnt_rx_frames_get,
1398 .str = "tx_octets_prio",
1399 .getter = mlxsw_reg_ppcnt_tx_octets_get,
1402 .str = "tx_frames_prio",
1403 .getter = mlxsw_reg_ppcnt_tx_frames_get,
1406 .str = "rx_pause_prio",
1407 .getter = mlxsw_reg_ppcnt_rx_pause_get,
1410 .str = "rx_pause_duration_prio",
1411 .getter = mlxsw_reg_ppcnt_rx_pause_duration_get,
1414 .str = "tx_pause_prio",
1415 .getter = mlxsw_reg_ppcnt_tx_pause_get,
1418 .str = "tx_pause_duration_prio",
1419 .getter = mlxsw_reg_ppcnt_tx_pause_duration_get,
1423 #define MLXSW_SP_PORT_HW_PRIO_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_prio_stats)
1425 static u64 mlxsw_reg_ppcnt_tc_transmit_queue_bytes_get(char *ppcnt_pl)
1427 u64 transmit_queue = mlxsw_reg_ppcnt_tc_transmit_queue_get(ppcnt_pl);
1429 return MLXSW_SP_CELLS_TO_BYTES(transmit_queue);
1432 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_tc_stats[] = {
1434 .str = "tc_transmit_queue_tc",
1435 .getter = mlxsw_reg_ppcnt_tc_transmit_queue_bytes_get,
1438 .str = "tc_no_buffer_discard_uc_tc",
1439 .getter = mlxsw_reg_ppcnt_tc_no_buffer_discard_uc_get,
1443 #define MLXSW_SP_PORT_HW_TC_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_tc_stats)
1445 #define MLXSW_SP_PORT_ETHTOOL_STATS_LEN (MLXSW_SP_PORT_HW_STATS_LEN + \
1446 (MLXSW_SP_PORT_HW_PRIO_STATS_LEN + \
1447 MLXSW_SP_PORT_HW_TC_STATS_LEN) * \
1448 IEEE_8021QAZ_MAX_TCS)
1450 static void mlxsw_sp_port_get_prio_strings(u8 **p, int prio)
1454 for (i = 0; i < MLXSW_SP_PORT_HW_PRIO_STATS_LEN; i++) {
1455 snprintf(*p, ETH_GSTRING_LEN, "%s_%d",
1456 mlxsw_sp_port_hw_prio_stats[i].str, prio);
1457 *p += ETH_GSTRING_LEN;
1461 static void mlxsw_sp_port_get_tc_strings(u8 **p, int tc)
1465 for (i = 0; i < MLXSW_SP_PORT_HW_TC_STATS_LEN; i++) {
1466 snprintf(*p, ETH_GSTRING_LEN, "%s_%d",
1467 mlxsw_sp_port_hw_tc_stats[i].str, tc);
1468 *p += ETH_GSTRING_LEN;
1472 static void mlxsw_sp_port_get_strings(struct net_device *dev,
1473 u32 stringset, u8 *data)
1478 switch (stringset) {
1480 for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++) {
1481 memcpy(p, mlxsw_sp_port_hw_stats[i].str,
1483 p += ETH_GSTRING_LEN;
1486 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
1487 mlxsw_sp_port_get_prio_strings(&p, i);
1489 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
1490 mlxsw_sp_port_get_tc_strings(&p, i);
1496 static int mlxsw_sp_port_set_phys_id(struct net_device *dev,
1497 enum ethtool_phys_id_state state)
1499 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1500 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1501 char mlcr_pl[MLXSW_REG_MLCR_LEN];
1505 case ETHTOOL_ID_ACTIVE:
1508 case ETHTOOL_ID_INACTIVE:
1515 mlxsw_reg_mlcr_pack(mlcr_pl, mlxsw_sp_port->local_port, active);
1516 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mlcr), mlcr_pl);
1520 mlxsw_sp_get_hw_stats_by_group(struct mlxsw_sp_port_hw_stats **p_hw_stats,
1521 int *p_len, enum mlxsw_reg_ppcnt_grp grp)
1524 case MLXSW_REG_PPCNT_IEEE_8023_CNT:
1525 *p_hw_stats = mlxsw_sp_port_hw_stats;
1526 *p_len = MLXSW_SP_PORT_HW_STATS_LEN;
1528 case MLXSW_REG_PPCNT_PRIO_CNT:
1529 *p_hw_stats = mlxsw_sp_port_hw_prio_stats;
1530 *p_len = MLXSW_SP_PORT_HW_PRIO_STATS_LEN;
1532 case MLXSW_REG_PPCNT_TC_CNT:
1533 *p_hw_stats = mlxsw_sp_port_hw_tc_stats;
1534 *p_len = MLXSW_SP_PORT_HW_TC_STATS_LEN;
1543 static void __mlxsw_sp_port_get_stats(struct net_device *dev,
1544 enum mlxsw_reg_ppcnt_grp grp, int prio,
1545 u64 *data, int data_index)
1547 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1548 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1549 struct mlxsw_sp_port_hw_stats *hw_stats;
1550 char ppcnt_pl[MLXSW_REG_PPCNT_LEN];
1554 err = mlxsw_sp_get_hw_stats_by_group(&hw_stats, &len, grp);
1557 mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port, grp, prio);
1558 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl);
1559 for (i = 0; i < len; i++)
1560 data[data_index + i] = !err ? hw_stats[i].getter(ppcnt_pl) : 0;
1563 static void mlxsw_sp_port_get_stats(struct net_device *dev,
1564 struct ethtool_stats *stats, u64 *data)
1566 int i, data_index = 0;
1568 /* IEEE 802.3 Counters */
1569 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_IEEE_8023_CNT, 0,
1571 data_index = MLXSW_SP_PORT_HW_STATS_LEN;
1573 /* Per-Priority Counters */
1574 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
1575 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_PRIO_CNT, i,
1577 data_index += MLXSW_SP_PORT_HW_PRIO_STATS_LEN;
1580 /* Per-TC Counters */
1581 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
1582 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_TC_CNT, i,
1584 data_index += MLXSW_SP_PORT_HW_TC_STATS_LEN;
1588 static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset)
1592 return MLXSW_SP_PORT_ETHTOOL_STATS_LEN;
1598 struct mlxsw_sp_port_link_mode {
1605 static const struct mlxsw_sp_port_link_mode mlxsw_sp_port_link_mode[] = {
1607 .mask = MLXSW_REG_PTYS_ETH_SPEED_100BASE_T,
1608 .supported = SUPPORTED_100baseT_Full,
1609 .advertised = ADVERTISED_100baseT_Full,
1613 .mask = MLXSW_REG_PTYS_ETH_SPEED_100BASE_TX,
1617 .mask = MLXSW_REG_PTYS_ETH_SPEED_SGMII |
1618 MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX,
1619 .supported = SUPPORTED_1000baseKX_Full,
1620 .advertised = ADVERTISED_1000baseKX_Full,
1624 .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_T,
1625 .supported = SUPPORTED_10000baseT_Full,
1626 .advertised = ADVERTISED_10000baseT_Full,
1630 .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4 |
1631 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4,
1632 .supported = SUPPORTED_10000baseKX4_Full,
1633 .advertised = ADVERTISED_10000baseKX4_Full,
1637 .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
1638 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
1639 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
1640 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR,
1641 .supported = SUPPORTED_10000baseKR_Full,
1642 .advertised = ADVERTISED_10000baseKR_Full,
1646 .mask = MLXSW_REG_PTYS_ETH_SPEED_20GBASE_KR2,
1647 .supported = SUPPORTED_20000baseKR2_Full,
1648 .advertised = ADVERTISED_20000baseKR2_Full,
1652 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4,
1653 .supported = SUPPORTED_40000baseCR4_Full,
1654 .advertised = ADVERTISED_40000baseCR4_Full,
1658 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4,
1659 .supported = SUPPORTED_40000baseKR4_Full,
1660 .advertised = ADVERTISED_40000baseKR4_Full,
1664 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4,
1665 .supported = SUPPORTED_40000baseSR4_Full,
1666 .advertised = ADVERTISED_40000baseSR4_Full,
1670 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4,
1671 .supported = SUPPORTED_40000baseLR4_Full,
1672 .advertised = ADVERTISED_40000baseLR4_Full,
1676 .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR |
1677 MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR |
1678 MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR,
1682 .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR4 |
1683 MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2 |
1684 MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2,
1688 .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4,
1689 .supported = SUPPORTED_56000baseKR4_Full,
1690 .advertised = ADVERTISED_56000baseKR4_Full,
1694 .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4 |
1695 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
1696 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 |
1697 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4,
1702 #define MLXSW_SP_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp_port_link_mode)
1704 static u32 mlxsw_sp_from_ptys_supported_port(u32 ptys_eth_proto)
1706 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
1707 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
1708 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
1709 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
1710 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
1711 MLXSW_REG_PTYS_ETH_SPEED_SGMII))
1712 return SUPPORTED_FIBRE;
1714 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
1715 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
1716 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
1717 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 |
1718 MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX))
1719 return SUPPORTED_Backplane;
1723 static u32 mlxsw_sp_from_ptys_supported_link(u32 ptys_eth_proto)
1728 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1729 if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask)
1730 modes |= mlxsw_sp_port_link_mode[i].supported;
1735 static u32 mlxsw_sp_from_ptys_advert_link(u32 ptys_eth_proto)
1740 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1741 if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask)
1742 modes |= mlxsw_sp_port_link_mode[i].advertised;
1747 static void mlxsw_sp_from_ptys_speed_duplex(bool carrier_ok, u32 ptys_eth_proto,
1748 struct ethtool_cmd *cmd)
1750 u32 speed = SPEED_UNKNOWN;
1751 u8 duplex = DUPLEX_UNKNOWN;
1757 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1758 if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) {
1759 speed = mlxsw_sp_port_link_mode[i].speed;
1760 duplex = DUPLEX_FULL;
1765 ethtool_cmd_speed_set(cmd, speed);
1766 cmd->duplex = duplex;
1769 static u8 mlxsw_sp_port_connector_port(u32 ptys_eth_proto)
1771 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
1772 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
1773 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
1774 MLXSW_REG_PTYS_ETH_SPEED_SGMII))
1777 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
1778 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
1779 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4))
1782 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
1783 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
1784 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
1785 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4))
1791 static int mlxsw_sp_port_get_settings(struct net_device *dev,
1792 struct ethtool_cmd *cmd)
1794 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1795 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1796 char ptys_pl[MLXSW_REG_PTYS_LEN];
1798 u32 eth_proto_admin;
1802 mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
1803 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1805 netdev_err(dev, "Failed to get proto");
1808 mlxsw_reg_ptys_unpack(ptys_pl, ð_proto_cap,
1809 ð_proto_admin, ð_proto_oper);
1811 cmd->supported = mlxsw_sp_from_ptys_supported_port(eth_proto_cap) |
1812 mlxsw_sp_from_ptys_supported_link(eth_proto_cap) |
1813 SUPPORTED_Pause | SUPPORTED_Asym_Pause |
1815 cmd->advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_admin);
1816 mlxsw_sp_from_ptys_speed_duplex(netif_carrier_ok(dev),
1817 eth_proto_oper, cmd);
1819 eth_proto_oper = eth_proto_oper ? eth_proto_oper : eth_proto_cap;
1820 cmd->port = mlxsw_sp_port_connector_port(eth_proto_oper);
1821 cmd->lp_advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_oper);
1823 cmd->transceiver = XCVR_INTERNAL;
1827 static u32 mlxsw_sp_to_ptys_advert_link(u32 advertising)
1832 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1833 if (advertising & mlxsw_sp_port_link_mode[i].advertised)
1834 ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
1839 static u32 mlxsw_sp_to_ptys_speed(u32 speed)
1844 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1845 if (speed == mlxsw_sp_port_link_mode[i].speed)
1846 ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
1851 static u32 mlxsw_sp_to_ptys_upper_speed(u32 upper_speed)
1856 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1857 if (mlxsw_sp_port_link_mode[i].speed <= upper_speed)
1858 ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
1863 static int mlxsw_sp_port_set_settings(struct net_device *dev,
1864 struct ethtool_cmd *cmd)
1866 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1867 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1868 char ptys_pl[MLXSW_REG_PTYS_LEN];
1872 u32 eth_proto_admin;
1875 speed = ethtool_cmd_speed(cmd);
1877 eth_proto_new = cmd->autoneg == AUTONEG_ENABLE ?
1878 mlxsw_sp_to_ptys_advert_link(cmd->advertising) :
1879 mlxsw_sp_to_ptys_speed(speed);
1881 mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
1882 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1884 netdev_err(dev, "Failed to get proto");
1887 mlxsw_reg_ptys_unpack(ptys_pl, ð_proto_cap, ð_proto_admin, NULL);
1889 eth_proto_new = eth_proto_new & eth_proto_cap;
1890 if (!eth_proto_new) {
1891 netdev_err(dev, "Not supported proto admin requested");
1894 if (eth_proto_new == eth_proto_admin)
1897 mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, eth_proto_new);
1898 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1900 netdev_err(dev, "Failed to set proto admin");
1904 if (!netif_running(dev))
1907 err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
1909 netdev_err(dev, "Failed to set admin status");
1913 err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
1915 netdev_err(dev, "Failed to set admin status");
1922 static const struct ethtool_ops mlxsw_sp_port_ethtool_ops = {
1923 .get_drvinfo = mlxsw_sp_port_get_drvinfo,
1924 .get_link = ethtool_op_get_link,
1925 .get_pauseparam = mlxsw_sp_port_get_pauseparam,
1926 .set_pauseparam = mlxsw_sp_port_set_pauseparam,
1927 .get_strings = mlxsw_sp_port_get_strings,
1928 .set_phys_id = mlxsw_sp_port_set_phys_id,
1929 .get_ethtool_stats = mlxsw_sp_port_get_stats,
1930 .get_sset_count = mlxsw_sp_port_get_sset_count,
1931 .get_settings = mlxsw_sp_port_get_settings,
1932 .set_settings = mlxsw_sp_port_set_settings,
1936 mlxsw_sp_port_speed_by_width_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 width)
1938 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1939 u32 upper_speed = MLXSW_SP_PORT_BASE_SPEED * width;
1940 char ptys_pl[MLXSW_REG_PTYS_LEN];
1941 u32 eth_proto_admin;
1943 eth_proto_admin = mlxsw_sp_to_ptys_upper_speed(upper_speed);
1944 mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port,
1946 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1949 int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port,
1950 enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index,
1951 bool dwrr, u8 dwrr_weight)
1953 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1954 char qeec_pl[MLXSW_REG_QEEC_LEN];
1956 mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
1958 mlxsw_reg_qeec_de_set(qeec_pl, true);
1959 mlxsw_reg_qeec_dwrr_set(qeec_pl, dwrr);
1960 mlxsw_reg_qeec_dwrr_weight_set(qeec_pl, dwrr_weight);
1961 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
1964 int mlxsw_sp_port_ets_maxrate_set(struct mlxsw_sp_port *mlxsw_sp_port,
1965 enum mlxsw_reg_qeec_hr hr, u8 index,
1966 u8 next_index, u32 maxrate)
1968 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1969 char qeec_pl[MLXSW_REG_QEEC_LEN];
1971 mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
1973 mlxsw_reg_qeec_mase_set(qeec_pl, true);
1974 mlxsw_reg_qeec_max_shaper_rate_set(qeec_pl, maxrate);
1975 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
1978 int mlxsw_sp_port_prio_tc_set(struct mlxsw_sp_port *mlxsw_sp_port,
1979 u8 switch_prio, u8 tclass)
1981 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1982 char qtct_pl[MLXSW_REG_QTCT_LEN];
1984 mlxsw_reg_qtct_pack(qtct_pl, mlxsw_sp_port->local_port, switch_prio,
1986 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qtct), qtct_pl);
1989 static int mlxsw_sp_port_ets_init(struct mlxsw_sp_port *mlxsw_sp_port)
1993 /* Setup the elements hierarcy, so that each TC is linked to
1994 * one subgroup, which are all member in the same group.
1996 err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
1997 MLXSW_REG_QEEC_HIERARCY_GROUP, 0, 0, false,
2001 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2002 err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
2003 MLXSW_REG_QEEC_HIERARCY_SUBGROUP, i,
2008 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2009 err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
2010 MLXSW_REG_QEEC_HIERARCY_TC, i, i,
2016 /* Make sure the max shaper is disabled in all hierarcies that
2019 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
2020 MLXSW_REG_QEEC_HIERARCY_PORT, 0, 0,
2021 MLXSW_REG_QEEC_MAS_DIS);
2024 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2025 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
2026 MLXSW_REG_QEEC_HIERARCY_SUBGROUP,
2028 MLXSW_REG_QEEC_MAS_DIS);
2032 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2033 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
2034 MLXSW_REG_QEEC_HIERARCY_TC,
2036 MLXSW_REG_QEEC_MAS_DIS);
2041 /* Map all priorities to traffic class 0. */
2042 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2043 err = mlxsw_sp_port_prio_tc_set(mlxsw_sp_port, i, 0);
2051 static int mlxsw_sp_port_pvid_vport_create(struct mlxsw_sp_port *mlxsw_sp_port)
2053 mlxsw_sp_port->pvid = 1;
2055 return mlxsw_sp_port_add_vid(mlxsw_sp_port->dev, 0, 1);
2058 static int mlxsw_sp_port_pvid_vport_destroy(struct mlxsw_sp_port *mlxsw_sp_port)
2060 return mlxsw_sp_port_kill_vid(mlxsw_sp_port->dev, 0, 1);
2063 static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
2064 bool split, u8 module, u8 width, u8 lane)
2066 struct mlxsw_sp_port *mlxsw_sp_port;
2067 struct net_device *dev;
2071 dev = alloc_etherdev(sizeof(struct mlxsw_sp_port));
2074 mlxsw_sp_port = netdev_priv(dev);
2075 mlxsw_sp_port->dev = dev;
2076 mlxsw_sp_port->mlxsw_sp = mlxsw_sp;
2077 mlxsw_sp_port->local_port = local_port;
2078 mlxsw_sp_port->split = split;
2079 mlxsw_sp_port->mapping.module = module;
2080 mlxsw_sp_port->mapping.width = width;
2081 mlxsw_sp_port->mapping.lane = lane;
2082 bytes = DIV_ROUND_UP(VLAN_N_VID, BITS_PER_BYTE);
2083 mlxsw_sp_port->active_vlans = kzalloc(bytes, GFP_KERNEL);
2084 if (!mlxsw_sp_port->active_vlans) {
2086 goto err_port_active_vlans_alloc;
2088 mlxsw_sp_port->untagged_vlans = kzalloc(bytes, GFP_KERNEL);
2089 if (!mlxsw_sp_port->untagged_vlans) {
2091 goto err_port_untagged_vlans_alloc;
2093 INIT_LIST_HEAD(&mlxsw_sp_port->vports_list);
2094 INIT_LIST_HEAD(&mlxsw_sp_port->mall_tc_list);
2096 mlxsw_sp_port->pcpu_stats =
2097 netdev_alloc_pcpu_stats(struct mlxsw_sp_port_pcpu_stats);
2098 if (!mlxsw_sp_port->pcpu_stats) {
2100 goto err_alloc_stats;
2103 dev->netdev_ops = &mlxsw_sp_port_netdev_ops;
2104 dev->ethtool_ops = &mlxsw_sp_port_ethtool_ops;
2106 err = mlxsw_sp_port_dev_addr_init(mlxsw_sp_port);
2108 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unable to init port mac address\n",
2109 mlxsw_sp_port->local_port);
2110 goto err_dev_addr_init;
2113 netif_carrier_off(dev);
2115 dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_LLTX | NETIF_F_SG |
2116 NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC;
2117 dev->hw_features |= NETIF_F_HW_TC;
2119 /* Each packet needs to have a Tx header (metadata) on top all other
2122 dev->hard_header_len += MLXSW_TXHDR_LEN;
2124 err = mlxsw_sp_port_system_port_mapping_set(mlxsw_sp_port);
2126 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set system port mapping\n",
2127 mlxsw_sp_port->local_port);
2128 goto err_port_system_port_mapping_set;
2131 err = mlxsw_sp_port_swid_set(mlxsw_sp_port, 0);
2133 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set SWID\n",
2134 mlxsw_sp_port->local_port);
2135 goto err_port_swid_set;
2138 err = mlxsw_sp_port_speed_by_width_set(mlxsw_sp_port, width);
2140 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to enable speeds\n",
2141 mlxsw_sp_port->local_port);
2142 goto err_port_speed_by_width_set;
2145 err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, ETH_DATA_LEN);
2147 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set MTU\n",
2148 mlxsw_sp_port->local_port);
2149 goto err_port_mtu_set;
2152 err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
2154 goto err_port_admin_status_set;
2156 err = mlxsw_sp_port_buffers_init(mlxsw_sp_port);
2158 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize buffers\n",
2159 mlxsw_sp_port->local_port);
2160 goto err_port_buffers_init;
2163 err = mlxsw_sp_port_ets_init(mlxsw_sp_port);
2165 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize ETS\n",
2166 mlxsw_sp_port->local_port);
2167 goto err_port_ets_init;
2170 /* ETS and buffers must be initialized before DCB. */
2171 err = mlxsw_sp_port_dcb_init(mlxsw_sp_port);
2173 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize DCB\n",
2174 mlxsw_sp_port->local_port);
2175 goto err_port_dcb_init;
2178 err = mlxsw_sp_port_pvid_vport_create(mlxsw_sp_port);
2180 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to create PVID vPort\n",
2181 mlxsw_sp_port->local_port);
2182 goto err_port_pvid_vport_create;
2185 mlxsw_sp_port_switchdev_init(mlxsw_sp_port);
2186 mlxsw_sp->ports[local_port] = mlxsw_sp_port;
2187 err = register_netdev(dev);
2189 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to register netdev\n",
2190 mlxsw_sp_port->local_port);
2191 goto err_register_netdev;
2194 err = mlxsw_core_port_init(mlxsw_sp->core, &mlxsw_sp_port->core_port,
2195 mlxsw_sp_port->local_port, dev,
2196 mlxsw_sp_port->split, module);
2198 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to init core port\n",
2199 mlxsw_sp_port->local_port);
2200 goto err_core_port_init;
2206 unregister_netdev(dev);
2207 err_register_netdev:
2208 mlxsw_sp->ports[local_port] = NULL;
2209 mlxsw_sp_port_pvid_vport_destroy(mlxsw_sp_port);
2210 err_port_pvid_vport_create:
2211 mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
2214 err_port_buffers_init:
2215 err_port_admin_status_set:
2217 err_port_speed_by_width_set:
2219 err_port_system_port_mapping_set:
2221 free_percpu(mlxsw_sp_port->pcpu_stats);
2223 kfree(mlxsw_sp_port->untagged_vlans);
2224 err_port_untagged_vlans_alloc:
2225 kfree(mlxsw_sp_port->active_vlans);
2226 err_port_active_vlans_alloc:
2231 static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
2233 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
2237 mlxsw_core_port_fini(&mlxsw_sp_port->core_port);
2238 unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */
2239 mlxsw_sp->ports[local_port] = NULL;
2240 mlxsw_sp_port_pvid_vport_destroy(mlxsw_sp_port);
2241 mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
2242 mlxsw_sp_port_switchdev_fini(mlxsw_sp_port);
2243 mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT);
2244 mlxsw_sp_port_module_unmap(mlxsw_sp, mlxsw_sp_port->local_port);
2245 free_percpu(mlxsw_sp_port->pcpu_stats);
2246 kfree(mlxsw_sp_port->untagged_vlans);
2247 kfree(mlxsw_sp_port->active_vlans);
2248 WARN_ON_ONCE(!list_empty(&mlxsw_sp_port->vports_list));
2249 free_netdev(mlxsw_sp_port->dev);
2252 static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp)
2256 for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++)
2257 mlxsw_sp_port_remove(mlxsw_sp, i);
2258 kfree(mlxsw_sp->ports);
2261 static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp)
2263 u8 module, width, lane;
2268 alloc_size = sizeof(struct mlxsw_sp_port *) * MLXSW_PORT_MAX_PORTS;
2269 mlxsw_sp->ports = kzalloc(alloc_size, GFP_KERNEL);
2270 if (!mlxsw_sp->ports)
2273 for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++) {
2274 err = mlxsw_sp_port_module_info_get(mlxsw_sp, i, &module,
2277 goto err_port_module_info_get;
2280 mlxsw_sp->port_to_module[i] = module;
2281 err = mlxsw_sp_port_create(mlxsw_sp, i, false, module, width,
2284 goto err_port_create;
2289 err_port_module_info_get:
2290 for (i--; i >= 1; i--)
2291 mlxsw_sp_port_remove(mlxsw_sp, i);
2292 kfree(mlxsw_sp->ports);
2296 static u8 mlxsw_sp_cluster_base_port_get(u8 local_port)
2298 u8 offset = (local_port - 1) % MLXSW_SP_PORTS_PER_CLUSTER_MAX;
2300 return local_port - offset;
2303 static int mlxsw_sp_port_split_create(struct mlxsw_sp *mlxsw_sp, u8 base_port,
2304 u8 module, unsigned int count)
2306 u8 width = MLXSW_PORT_MODULE_MAX_WIDTH / count;
2309 for (i = 0; i < count; i++) {
2310 err = mlxsw_sp_port_module_map(mlxsw_sp, base_port + i, module,
2313 goto err_port_module_map;
2316 for (i = 0; i < count; i++) {
2317 err = __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i, 0);
2319 goto err_port_swid_set;
2322 for (i = 0; i < count; i++) {
2323 err = mlxsw_sp_port_create(mlxsw_sp, base_port + i, true,
2324 module, width, i * width);
2326 goto err_port_create;
2332 for (i--; i >= 0; i--)
2333 mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
2336 for (i--; i >= 0; i--)
2337 __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i,
2338 MLXSW_PORT_SWID_DISABLED_PORT);
2340 err_port_module_map:
2341 for (i--; i >= 0; i--)
2342 mlxsw_sp_port_module_unmap(mlxsw_sp, base_port + i);
2346 static void mlxsw_sp_port_unsplit_create(struct mlxsw_sp *mlxsw_sp,
2347 u8 base_port, unsigned int count)
2349 u8 local_port, module, width = MLXSW_PORT_MODULE_MAX_WIDTH;
2352 /* Split by four means we need to re-create two ports, otherwise
2357 for (i = 0; i < count; i++) {
2358 local_port = base_port + i * 2;
2359 module = mlxsw_sp->port_to_module[local_port];
2361 mlxsw_sp_port_module_map(mlxsw_sp, local_port, module, width,
2365 for (i = 0; i < count; i++)
2366 __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i * 2, 0);
2368 for (i = 0; i < count; i++) {
2369 local_port = base_port + i * 2;
2370 module = mlxsw_sp->port_to_module[local_port];
2372 mlxsw_sp_port_create(mlxsw_sp, local_port, false, module,
2377 static int mlxsw_sp_port_split(struct mlxsw_core *mlxsw_core, u8 local_port,
2380 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2381 struct mlxsw_sp_port *mlxsw_sp_port;
2382 u8 module, cur_width, base_port;
2386 mlxsw_sp_port = mlxsw_sp->ports[local_port];
2387 if (!mlxsw_sp_port) {
2388 dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
2393 module = mlxsw_sp_port->mapping.module;
2394 cur_width = mlxsw_sp_port->mapping.width;
2396 if (count != 2 && count != 4) {
2397 netdev_err(mlxsw_sp_port->dev, "Port can only be split into 2 or 4 ports\n");
2401 if (cur_width != MLXSW_PORT_MODULE_MAX_WIDTH) {
2402 netdev_err(mlxsw_sp_port->dev, "Port cannot be split further\n");
2406 /* Make sure we have enough slave (even) ports for the split. */
2408 base_port = local_port;
2409 if (mlxsw_sp->ports[base_port + 1]) {
2410 netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
2414 base_port = mlxsw_sp_cluster_base_port_get(local_port);
2415 if (mlxsw_sp->ports[base_port + 1] ||
2416 mlxsw_sp->ports[base_port + 3]) {
2417 netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
2422 for (i = 0; i < count; i++)
2423 mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
2425 err = mlxsw_sp_port_split_create(mlxsw_sp, base_port, module, count);
2427 dev_err(mlxsw_sp->bus_info->dev, "Failed to create split ports\n");
2428 goto err_port_split_create;
2433 err_port_split_create:
2434 mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count);
2438 static int mlxsw_sp_port_unsplit(struct mlxsw_core *mlxsw_core, u8 local_port)
2440 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2441 struct mlxsw_sp_port *mlxsw_sp_port;
2442 u8 cur_width, base_port;
2446 mlxsw_sp_port = mlxsw_sp->ports[local_port];
2447 if (!mlxsw_sp_port) {
2448 dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
2453 if (!mlxsw_sp_port->split) {
2454 netdev_err(mlxsw_sp_port->dev, "Port wasn't split\n");
2458 cur_width = mlxsw_sp_port->mapping.width;
2459 count = cur_width == 1 ? 4 : 2;
2461 base_port = mlxsw_sp_cluster_base_port_get(local_port);
2463 /* Determine which ports to remove. */
2464 if (count == 2 && local_port >= base_port + 2)
2465 base_port = base_port + 2;
2467 for (i = 0; i < count; i++)
2468 mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
2470 mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count);
2475 static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg,
2476 char *pude_pl, void *priv)
2478 struct mlxsw_sp *mlxsw_sp = priv;
2479 struct mlxsw_sp_port *mlxsw_sp_port;
2480 enum mlxsw_reg_pude_oper_status status;
2483 local_port = mlxsw_reg_pude_local_port_get(pude_pl);
2484 mlxsw_sp_port = mlxsw_sp->ports[local_port];
2488 status = mlxsw_reg_pude_oper_status_get(pude_pl);
2489 if (status == MLXSW_PORT_OPER_STATUS_UP) {
2490 netdev_info(mlxsw_sp_port->dev, "link up\n");
2491 netif_carrier_on(mlxsw_sp_port->dev);
2493 netdev_info(mlxsw_sp_port->dev, "link down\n");
2494 netif_carrier_off(mlxsw_sp_port->dev);
2498 static struct mlxsw_event_listener mlxsw_sp_pude_event = {
2499 .func = mlxsw_sp_pude_event_func,
2500 .trap_id = MLXSW_TRAP_ID_PUDE,
2503 static int mlxsw_sp_event_register(struct mlxsw_sp *mlxsw_sp,
2504 enum mlxsw_event_trap_id trap_id)
2506 struct mlxsw_event_listener *el;
2507 char hpkt_pl[MLXSW_REG_HPKT_LEN];
2511 case MLXSW_TRAP_ID_PUDE:
2512 el = &mlxsw_sp_pude_event;
2515 err = mlxsw_core_event_listener_register(mlxsw_sp->core, el, mlxsw_sp);
2519 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD, trap_id);
2520 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2522 goto err_event_trap_set;
2527 mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp);
2531 static void mlxsw_sp_event_unregister(struct mlxsw_sp *mlxsw_sp,
2532 enum mlxsw_event_trap_id trap_id)
2534 struct mlxsw_event_listener *el;
2537 case MLXSW_TRAP_ID_PUDE:
2538 el = &mlxsw_sp_pude_event;
2541 mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp);
2544 static void mlxsw_sp_rx_listener_func(struct sk_buff *skb, u8 local_port,
2547 struct mlxsw_sp *mlxsw_sp = priv;
2548 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
2549 struct mlxsw_sp_port_pcpu_stats *pcpu_stats;
2551 if (unlikely(!mlxsw_sp_port)) {
2552 dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: skb received for non-existent port\n",
2557 skb->dev = mlxsw_sp_port->dev;
2559 pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
2560 u64_stats_update_begin(&pcpu_stats->syncp);
2561 pcpu_stats->rx_packets++;
2562 pcpu_stats->rx_bytes += skb->len;
2563 u64_stats_update_end(&pcpu_stats->syncp);
2565 skb->protocol = eth_type_trans(skb, skb->dev);
2566 netif_receive_skb(skb);
2569 static const struct mlxsw_rx_listener mlxsw_sp_rx_listener[] = {
2571 .func = mlxsw_sp_rx_listener_func,
2572 .local_port = MLXSW_PORT_DONT_CARE,
2573 .trap_id = MLXSW_TRAP_ID_FDB_MC,
2575 /* Traps for specific L2 packet types, not trapped as FDB MC */
2577 .func = mlxsw_sp_rx_listener_func,
2578 .local_port = MLXSW_PORT_DONT_CARE,
2579 .trap_id = MLXSW_TRAP_ID_STP,
2582 .func = mlxsw_sp_rx_listener_func,
2583 .local_port = MLXSW_PORT_DONT_CARE,
2584 .trap_id = MLXSW_TRAP_ID_LACP,
2587 .func = mlxsw_sp_rx_listener_func,
2588 .local_port = MLXSW_PORT_DONT_CARE,
2589 .trap_id = MLXSW_TRAP_ID_EAPOL,
2592 .func = mlxsw_sp_rx_listener_func,
2593 .local_port = MLXSW_PORT_DONT_CARE,
2594 .trap_id = MLXSW_TRAP_ID_LLDP,
2597 .func = mlxsw_sp_rx_listener_func,
2598 .local_port = MLXSW_PORT_DONT_CARE,
2599 .trap_id = MLXSW_TRAP_ID_MMRP,
2602 .func = mlxsw_sp_rx_listener_func,
2603 .local_port = MLXSW_PORT_DONT_CARE,
2604 .trap_id = MLXSW_TRAP_ID_MVRP,
2607 .func = mlxsw_sp_rx_listener_func,
2608 .local_port = MLXSW_PORT_DONT_CARE,
2609 .trap_id = MLXSW_TRAP_ID_RPVST,
2612 .func = mlxsw_sp_rx_listener_func,
2613 .local_port = MLXSW_PORT_DONT_CARE,
2614 .trap_id = MLXSW_TRAP_ID_DHCP,
2617 .func = mlxsw_sp_rx_listener_func,
2618 .local_port = MLXSW_PORT_DONT_CARE,
2619 .trap_id = MLXSW_TRAP_ID_IGMP_QUERY,
2622 .func = mlxsw_sp_rx_listener_func,
2623 .local_port = MLXSW_PORT_DONT_CARE,
2624 .trap_id = MLXSW_TRAP_ID_IGMP_V1_REPORT,
2627 .func = mlxsw_sp_rx_listener_func,
2628 .local_port = MLXSW_PORT_DONT_CARE,
2629 .trap_id = MLXSW_TRAP_ID_IGMP_V2_REPORT,
2632 .func = mlxsw_sp_rx_listener_func,
2633 .local_port = MLXSW_PORT_DONT_CARE,
2634 .trap_id = MLXSW_TRAP_ID_IGMP_V2_LEAVE,
2637 .func = mlxsw_sp_rx_listener_func,
2638 .local_port = MLXSW_PORT_DONT_CARE,
2639 .trap_id = MLXSW_TRAP_ID_IGMP_V3_REPORT,
2642 .func = mlxsw_sp_rx_listener_func,
2643 .local_port = MLXSW_PORT_DONT_CARE,
2644 .trap_id = MLXSW_TRAP_ID_ARPBC,
2647 .func = mlxsw_sp_rx_listener_func,
2648 .local_port = MLXSW_PORT_DONT_CARE,
2649 .trap_id = MLXSW_TRAP_ID_ARPUC,
2652 .func = mlxsw_sp_rx_listener_func,
2653 .local_port = MLXSW_PORT_DONT_CARE,
2654 .trap_id = MLXSW_TRAP_ID_IP2ME,
2657 .func = mlxsw_sp_rx_listener_func,
2658 .local_port = MLXSW_PORT_DONT_CARE,
2659 .trap_id = MLXSW_TRAP_ID_RTR_INGRESS0,
2662 .func = mlxsw_sp_rx_listener_func,
2663 .local_port = MLXSW_PORT_DONT_CARE,
2664 .trap_id = MLXSW_TRAP_ID_HOST_MISS_IPV4,
2668 static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
2670 char htgt_pl[MLXSW_REG_HTGT_LEN];
2671 char hpkt_pl[MLXSW_REG_HPKT_LEN];
2675 mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_RX);
2676 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl);
2680 mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_CTRL);
2681 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl);
2685 for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) {
2686 err = mlxsw_core_rx_listener_register(mlxsw_sp->core,
2687 &mlxsw_sp_rx_listener[i],
2690 goto err_rx_listener_register;
2692 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_TRAP_TO_CPU,
2693 mlxsw_sp_rx_listener[i].trap_id);
2694 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2696 goto err_rx_trap_set;
2701 mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
2702 &mlxsw_sp_rx_listener[i],
2704 err_rx_listener_register:
2705 for (i--; i >= 0; i--) {
2706 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_DISCARD,
2707 mlxsw_sp_rx_listener[i].trap_id);
2708 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2710 mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
2711 &mlxsw_sp_rx_listener[i],
2717 static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp)
2719 char hpkt_pl[MLXSW_REG_HPKT_LEN];
2722 for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) {
2723 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_DISCARD,
2724 mlxsw_sp_rx_listener[i].trap_id);
2725 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2727 mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
2728 &mlxsw_sp_rx_listener[i],
2733 static int __mlxsw_sp_flood_init(struct mlxsw_core *mlxsw_core,
2734 enum mlxsw_reg_sfgc_type type,
2735 enum mlxsw_reg_sfgc_bridge_type bridge_type)
2737 enum mlxsw_flood_table_type table_type;
2738 enum mlxsw_sp_flood_table flood_table;
2739 char sfgc_pl[MLXSW_REG_SFGC_LEN];
2741 if (bridge_type == MLXSW_REG_SFGC_BRIDGE_TYPE_VFID)
2742 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID;
2744 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST;
2746 if (type == MLXSW_REG_SFGC_TYPE_UNKNOWN_UNICAST)
2747 flood_table = MLXSW_SP_FLOOD_TABLE_UC;
2749 flood_table = MLXSW_SP_FLOOD_TABLE_BM;
2751 mlxsw_reg_sfgc_pack(sfgc_pl, type, bridge_type, table_type,
2753 return mlxsw_reg_write(mlxsw_core, MLXSW_REG(sfgc), sfgc_pl);
2756 static int mlxsw_sp_flood_init(struct mlxsw_sp *mlxsw_sp)
2760 for (type = 0; type < MLXSW_REG_SFGC_TYPE_MAX; type++) {
2761 if (type == MLXSW_REG_SFGC_TYPE_RESERVED)
2764 err = __mlxsw_sp_flood_init(mlxsw_sp->core, type,
2765 MLXSW_REG_SFGC_BRIDGE_TYPE_VFID);
2769 err = __mlxsw_sp_flood_init(mlxsw_sp->core, type,
2770 MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID);
2778 static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp)
2780 char slcr_pl[MLXSW_REG_SLCR_LEN];
2782 mlxsw_reg_slcr_pack(slcr_pl, MLXSW_REG_SLCR_LAG_HASH_SMAC |
2783 MLXSW_REG_SLCR_LAG_HASH_DMAC |
2784 MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE |
2785 MLXSW_REG_SLCR_LAG_HASH_VLANID |
2786 MLXSW_REG_SLCR_LAG_HASH_SIP |
2787 MLXSW_REG_SLCR_LAG_HASH_DIP |
2788 MLXSW_REG_SLCR_LAG_HASH_SPORT |
2789 MLXSW_REG_SLCR_LAG_HASH_DPORT |
2790 MLXSW_REG_SLCR_LAG_HASH_IPPROTO);
2791 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcr), slcr_pl);
2794 static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core,
2795 const struct mlxsw_bus_info *mlxsw_bus_info)
2797 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2800 mlxsw_sp->core = mlxsw_core;
2801 mlxsw_sp->bus_info = mlxsw_bus_info;
2802 INIT_LIST_HEAD(&mlxsw_sp->fids);
2803 INIT_LIST_HEAD(&mlxsw_sp->vfids.list);
2804 INIT_LIST_HEAD(&mlxsw_sp->br_mids.list);
2806 err = mlxsw_sp_base_mac_get(mlxsw_sp);
2808 dev_err(mlxsw_sp->bus_info->dev, "Failed to get base mac\n");
2812 err = mlxsw_sp_event_register(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
2814 dev_err(mlxsw_sp->bus_info->dev, "Failed to register for PUDE events\n");
2818 err = mlxsw_sp_traps_init(mlxsw_sp);
2820 dev_err(mlxsw_sp->bus_info->dev, "Failed to set traps for RX\n");
2821 goto err_rx_listener_register;
2824 err = mlxsw_sp_flood_init(mlxsw_sp);
2826 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize flood tables\n");
2827 goto err_flood_init;
2830 err = mlxsw_sp_buffers_init(mlxsw_sp);
2832 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize buffers\n");
2833 goto err_buffers_init;
2836 err = mlxsw_sp_lag_init(mlxsw_sp);
2838 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize LAG\n");
2842 err = mlxsw_sp_switchdev_init(mlxsw_sp);
2844 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize switchdev\n");
2845 goto err_switchdev_init;
2848 err = mlxsw_sp_router_init(mlxsw_sp);
2850 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize router\n");
2851 goto err_router_init;
2854 err = mlxsw_sp_span_init(mlxsw_sp);
2856 dev_err(mlxsw_sp->bus_info->dev, "Failed to init span system\n");
2860 err = mlxsw_sp_ports_create(mlxsw_sp);
2862 dev_err(mlxsw_sp->bus_info->dev, "Failed to create ports\n");
2863 goto err_ports_create;
2869 mlxsw_sp_span_fini(mlxsw_sp);
2871 mlxsw_sp_router_fini(mlxsw_sp);
2873 mlxsw_sp_switchdev_fini(mlxsw_sp);
2876 mlxsw_sp_buffers_fini(mlxsw_sp);
2879 mlxsw_sp_traps_fini(mlxsw_sp);
2880 err_rx_listener_register:
2881 mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
2885 static void mlxsw_sp_fini(struct mlxsw_core *mlxsw_core)
2887 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2890 mlxsw_sp_ports_remove(mlxsw_sp);
2891 mlxsw_sp_span_fini(mlxsw_sp);
2892 mlxsw_sp_router_fini(mlxsw_sp);
2893 mlxsw_sp_switchdev_fini(mlxsw_sp);
2894 mlxsw_sp_buffers_fini(mlxsw_sp);
2895 mlxsw_sp_traps_fini(mlxsw_sp);
2896 mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
2897 WARN_ON(!list_empty(&mlxsw_sp->vfids.list));
2898 WARN_ON(!list_empty(&mlxsw_sp->fids));
2899 for (i = 0; i < MLXSW_SP_RIF_MAX; i++)
2900 WARN_ON_ONCE(mlxsw_sp->rifs[i]);
2903 static struct mlxsw_config_profile mlxsw_sp_config_profile = {
2904 .used_max_vepa_channels = 1,
2905 .max_vepa_channels = 0,
2907 .max_lag = MLXSW_SP_LAG_MAX,
2908 .used_max_port_per_lag = 1,
2909 .max_port_per_lag = MLXSW_SP_PORT_PER_LAG_MAX,
2911 .max_mid = MLXSW_SP_MID_MAX,
2914 .used_max_system_port = 1,
2915 .max_system_port = 64,
2916 .used_max_vlan_groups = 1,
2917 .max_vlan_groups = 127,
2918 .used_max_regions = 1,
2920 .used_flood_tables = 1,
2921 .used_flood_mode = 1,
2923 .max_fid_offset_flood_tables = 2,
2924 .fid_offset_flood_table_size = VLAN_N_VID - 1,
2925 .max_fid_flood_tables = 2,
2926 .fid_flood_table_size = MLXSW_SP_VFID_MAX,
2927 .used_max_ib_mc = 1,
2931 .used_kvd_sizes = 1,
2932 .kvd_linear_size = MLXSW_SP_KVD_LINEAR_SIZE,
2933 .kvd_hash_single_size = MLXSW_SP_KVD_HASH_SINGLE_SIZE,
2934 .kvd_hash_double_size = MLXSW_SP_KVD_HASH_DOUBLE_SIZE,
2938 .type = MLXSW_PORT_SWID_TYPE_ETH,
2941 .resource_query_enable = 1,
2944 static struct mlxsw_driver mlxsw_sp_driver = {
2945 .kind = MLXSW_DEVICE_KIND_SPECTRUM,
2946 .owner = THIS_MODULE,
2947 .priv_size = sizeof(struct mlxsw_sp),
2948 .init = mlxsw_sp_init,
2949 .fini = mlxsw_sp_fini,
2950 .port_split = mlxsw_sp_port_split,
2951 .port_unsplit = mlxsw_sp_port_unsplit,
2952 .sb_pool_get = mlxsw_sp_sb_pool_get,
2953 .sb_pool_set = mlxsw_sp_sb_pool_set,
2954 .sb_port_pool_get = mlxsw_sp_sb_port_pool_get,
2955 .sb_port_pool_set = mlxsw_sp_sb_port_pool_set,
2956 .sb_tc_pool_bind_get = mlxsw_sp_sb_tc_pool_bind_get,
2957 .sb_tc_pool_bind_set = mlxsw_sp_sb_tc_pool_bind_set,
2958 .sb_occ_snapshot = mlxsw_sp_sb_occ_snapshot,
2959 .sb_occ_max_clear = mlxsw_sp_sb_occ_max_clear,
2960 .sb_occ_port_pool_get = mlxsw_sp_sb_occ_port_pool_get,
2961 .sb_occ_tc_port_bind_get = mlxsw_sp_sb_occ_tc_port_bind_get,
2962 .txhdr_construct = mlxsw_sp_txhdr_construct,
2963 .txhdr_len = MLXSW_TXHDR_LEN,
2964 .profile = &mlxsw_sp_config_profile,
2967 static bool mlxsw_sp_port_dev_check(const struct net_device *dev)
2969 return dev->netdev_ops == &mlxsw_sp_port_netdev_ops;
2972 static struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find(struct net_device *dev)
2974 struct net_device *lower_dev;
2975 struct list_head *iter;
2977 if (mlxsw_sp_port_dev_check(dev))
2978 return netdev_priv(dev);
2980 netdev_for_each_all_lower_dev(dev, lower_dev, iter) {
2981 if (mlxsw_sp_port_dev_check(lower_dev))
2982 return netdev_priv(lower_dev);
2987 static struct mlxsw_sp *mlxsw_sp_lower_get(struct net_device *dev)
2989 struct mlxsw_sp_port *mlxsw_sp_port;
2991 mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(dev);
2992 return mlxsw_sp_port ? mlxsw_sp_port->mlxsw_sp : NULL;
2995 static struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find_rcu(struct net_device *dev)
2997 struct net_device *lower_dev;
2998 struct list_head *iter;
3000 if (mlxsw_sp_port_dev_check(dev))
3001 return netdev_priv(dev);
3003 netdev_for_each_all_lower_dev_rcu(dev, lower_dev, iter) {
3004 if (mlxsw_sp_port_dev_check(lower_dev))
3005 return netdev_priv(lower_dev);
3010 struct mlxsw_sp_port *mlxsw_sp_port_lower_dev_hold(struct net_device *dev)
3012 struct mlxsw_sp_port *mlxsw_sp_port;
3015 mlxsw_sp_port = mlxsw_sp_port_dev_lower_find_rcu(dev);
3017 dev_hold(mlxsw_sp_port->dev);
3019 return mlxsw_sp_port;
3022 void mlxsw_sp_port_dev_put(struct mlxsw_sp_port *mlxsw_sp_port)
3024 dev_put(mlxsw_sp_port->dev);
3027 static bool mlxsw_sp_rif_should_config(struct mlxsw_sp_rif *r,
3028 unsigned long event)
3037 if (r && --r->ref_count == 0)
3039 /* It is possible we already removed the RIF ourselves
3040 * if it was assigned to a netdev that is now a bridge
3049 static int mlxsw_sp_avail_rif_get(struct mlxsw_sp *mlxsw_sp)
3053 for (i = 0; i < MLXSW_SP_RIF_MAX; i++)
3054 if (!mlxsw_sp->rifs[i])
3057 return MLXSW_SP_RIF_MAX;
3060 static void mlxsw_sp_vport_rif_sp_attr_get(struct mlxsw_sp_port *mlxsw_sp_vport,
3061 bool *p_lagged, u16 *p_system_port)
3063 u8 local_port = mlxsw_sp_vport->local_port;
3065 *p_lagged = mlxsw_sp_vport->lagged;
3066 *p_system_port = *p_lagged ? mlxsw_sp_vport->lag_id : local_port;
3069 static int mlxsw_sp_vport_rif_sp_op(struct mlxsw_sp_port *mlxsw_sp_vport,
3070 struct net_device *l3_dev, u16 rif,
3073 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3074 bool lagged = mlxsw_sp_vport->lagged;
3075 char ritr_pl[MLXSW_REG_RITR_LEN];
3078 mlxsw_reg_ritr_pack(ritr_pl, create, MLXSW_REG_RITR_SP_IF, rif,
3079 l3_dev->mtu, l3_dev->dev_addr);
3081 mlxsw_sp_vport_rif_sp_attr_get(mlxsw_sp_vport, &lagged, &system_port);
3082 mlxsw_reg_ritr_sp_if_pack(ritr_pl, lagged, system_port,
3083 mlxsw_sp_vport_vid_get(mlxsw_sp_vport));
3085 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
3088 static void mlxsw_sp_vport_rif_sp_leave(struct mlxsw_sp_port *mlxsw_sp_vport);
3090 static struct mlxsw_sp_fid *
3091 mlxsw_sp_rfid_alloc(u16 fid, struct net_device *l3_dev)
3093 struct mlxsw_sp_fid *f;
3095 f = kzalloc(sizeof(*f), GFP_KERNEL);
3099 f->leave = mlxsw_sp_vport_rif_sp_leave;
3107 static struct mlxsw_sp_rif *
3108 mlxsw_sp_rif_alloc(u16 rif, struct net_device *l3_dev, struct mlxsw_sp_fid *f)
3110 struct mlxsw_sp_rif *r;
3112 r = kzalloc(sizeof(*r), GFP_KERNEL);
3116 ether_addr_copy(r->addr, l3_dev->dev_addr);
3117 r->mtu = l3_dev->mtu;
3126 static struct mlxsw_sp_rif *
3127 mlxsw_sp_vport_rif_sp_create(struct mlxsw_sp_port *mlxsw_sp_vport,
3128 struct net_device *l3_dev)
3130 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3131 struct mlxsw_sp_fid *f;
3132 struct mlxsw_sp_rif *r;
3136 rif = mlxsw_sp_avail_rif_get(mlxsw_sp);
3137 if (rif == MLXSW_SP_RIF_MAX)
3138 return ERR_PTR(-ERANGE);
3140 err = mlxsw_sp_vport_rif_sp_op(mlxsw_sp_vport, l3_dev, rif, true);
3142 return ERR_PTR(err);
3144 fid = mlxsw_sp_rif_sp_to_fid(rif);
3145 err = mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, fid, true);
3147 goto err_rif_fdb_op;
3149 f = mlxsw_sp_rfid_alloc(fid, l3_dev);
3152 goto err_rfid_alloc;
3155 r = mlxsw_sp_rif_alloc(rif, l3_dev, f);
3162 mlxsw_sp->rifs[rif] = r;
3169 mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, fid, false);
3171 mlxsw_sp_vport_rif_sp_op(mlxsw_sp_vport, l3_dev, rif, false);
3172 return ERR_PTR(err);
3175 static void mlxsw_sp_vport_rif_sp_destroy(struct mlxsw_sp_port *mlxsw_sp_vport,
3176 struct mlxsw_sp_rif *r)
3178 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3179 struct net_device *l3_dev = r->dev;
3180 struct mlxsw_sp_fid *f = r->f;
3184 mlxsw_sp->rifs[rif] = NULL;
3191 mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, fid, false);
3193 mlxsw_sp_vport_rif_sp_op(mlxsw_sp_vport, l3_dev, rif, false);
3196 static int mlxsw_sp_vport_rif_sp_join(struct mlxsw_sp_port *mlxsw_sp_vport,
3197 struct net_device *l3_dev)
3199 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3200 struct mlxsw_sp_rif *r;
3202 r = mlxsw_sp_rif_find_by_dev(mlxsw_sp, l3_dev);
3204 r = mlxsw_sp_vport_rif_sp_create(mlxsw_sp_vport, l3_dev);
3209 mlxsw_sp_vport_fid_set(mlxsw_sp_vport, r->f);
3212 netdev_dbg(mlxsw_sp_vport->dev, "Joined FID=%d\n", r->f->fid);
3217 static void mlxsw_sp_vport_rif_sp_leave(struct mlxsw_sp_port *mlxsw_sp_vport)
3219 struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
3221 netdev_dbg(mlxsw_sp_vport->dev, "Left FID=%d\n", f->fid);
3223 mlxsw_sp_vport_fid_set(mlxsw_sp_vport, NULL);
3224 if (--f->ref_count == 0)
3225 mlxsw_sp_vport_rif_sp_destroy(mlxsw_sp_vport, f->r);
3228 static int mlxsw_sp_inetaddr_vport_event(struct net_device *l3_dev,
3229 struct net_device *port_dev,
3230 unsigned long event, u16 vid)
3232 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(port_dev);
3233 struct mlxsw_sp_port *mlxsw_sp_vport;
3235 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
3236 if (WARN_ON(!mlxsw_sp_vport))
3241 return mlxsw_sp_vport_rif_sp_join(mlxsw_sp_vport, l3_dev);
3243 mlxsw_sp_vport_rif_sp_leave(mlxsw_sp_vport);
3250 static int mlxsw_sp_inetaddr_port_event(struct net_device *port_dev,
3251 unsigned long event)
3253 if (netif_is_bridge_port(port_dev) || netif_is_lag_port(port_dev))
3256 return mlxsw_sp_inetaddr_vport_event(port_dev, port_dev, event, 1);
3259 static int __mlxsw_sp_inetaddr_lag_event(struct net_device *l3_dev,
3260 struct net_device *lag_dev,
3261 unsigned long event, u16 vid)
3263 struct net_device *port_dev;
3264 struct list_head *iter;
3267 netdev_for_each_lower_dev(lag_dev, port_dev, iter) {
3268 if (mlxsw_sp_port_dev_check(port_dev)) {
3269 err = mlxsw_sp_inetaddr_vport_event(l3_dev, port_dev,
3279 static int mlxsw_sp_inetaddr_lag_event(struct net_device *lag_dev,
3280 unsigned long event)
3282 if (netif_is_bridge_port(lag_dev))
3285 return __mlxsw_sp_inetaddr_lag_event(lag_dev, lag_dev, event, 1);
3288 static struct mlxsw_sp_fid *mlxsw_sp_bridge_fid_get(struct mlxsw_sp *mlxsw_sp,
3289 struct net_device *l3_dev)
3293 if (is_vlan_dev(l3_dev))
3294 fid = vlan_dev_vlan_id(l3_dev);
3295 else if (mlxsw_sp->master_bridge.dev == l3_dev)
3298 return mlxsw_sp_vfid_find(mlxsw_sp, l3_dev);
3300 return mlxsw_sp_fid_find(mlxsw_sp, fid);
3303 static enum mlxsw_reg_ritr_if_type mlxsw_sp_rif_type_get(u16 fid)
3305 if (mlxsw_sp_fid_is_vfid(fid))
3306 return MLXSW_REG_RITR_FID_IF;
3308 return MLXSW_REG_RITR_VLAN_IF;
3311 static int mlxsw_sp_rif_bridge_op(struct mlxsw_sp *mlxsw_sp,
3312 struct net_device *l3_dev,
3316 enum mlxsw_reg_ritr_if_type rif_type;
3317 char ritr_pl[MLXSW_REG_RITR_LEN];
3319 rif_type = mlxsw_sp_rif_type_get(fid);
3320 mlxsw_reg_ritr_pack(ritr_pl, create, rif_type, rif, l3_dev->mtu,
3322 mlxsw_reg_ritr_fid_set(ritr_pl, rif_type, fid);
3324 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
3327 static int mlxsw_sp_rif_bridge_create(struct mlxsw_sp *mlxsw_sp,
3328 struct net_device *l3_dev,
3329 struct mlxsw_sp_fid *f)
3331 struct mlxsw_sp_rif *r;
3335 rif = mlxsw_sp_avail_rif_get(mlxsw_sp);
3336 if (rif == MLXSW_SP_RIF_MAX)
3339 err = mlxsw_sp_rif_bridge_op(mlxsw_sp, l3_dev, f->fid, rif, true);
3343 err = mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, f->fid, true);
3345 goto err_rif_fdb_op;
3347 r = mlxsw_sp_rif_alloc(rif, l3_dev, f);
3354 mlxsw_sp->rifs[rif] = r;
3356 netdev_dbg(l3_dev, "RIF=%d created\n", rif);
3361 mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, f->fid, false);
3363 mlxsw_sp_rif_bridge_op(mlxsw_sp, l3_dev, f->fid, rif, false);
3367 void mlxsw_sp_rif_bridge_destroy(struct mlxsw_sp *mlxsw_sp,
3368 struct mlxsw_sp_rif *r)
3370 struct net_device *l3_dev = r->dev;
3371 struct mlxsw_sp_fid *f = r->f;
3374 mlxsw_sp->rifs[rif] = NULL;
3379 mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, f->fid, false);
3381 mlxsw_sp_rif_bridge_op(mlxsw_sp, l3_dev, f->fid, rif, false);
3383 netdev_dbg(l3_dev, "RIF=%d destroyed\n", rif);
3386 static int mlxsw_sp_inetaddr_bridge_event(struct net_device *l3_dev,
3387 struct net_device *br_dev,
3388 unsigned long event)
3390 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(l3_dev);
3391 struct mlxsw_sp_fid *f;
3393 /* FID can either be an actual FID if the L3 device is the
3394 * VLAN-aware bridge or a VLAN device on top. Otherwise, the
3395 * L3 device is a VLAN-unaware bridge and we get a vFID.
3397 f = mlxsw_sp_bridge_fid_get(mlxsw_sp, l3_dev);
3403 return mlxsw_sp_rif_bridge_create(mlxsw_sp, l3_dev, f);
3405 mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
3412 static int mlxsw_sp_inetaddr_vlan_event(struct net_device *vlan_dev,
3413 unsigned long event)
3415 struct net_device *real_dev = vlan_dev_real_dev(vlan_dev);
3416 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(vlan_dev);
3417 u16 vid = vlan_dev_vlan_id(vlan_dev);
3419 if (mlxsw_sp_port_dev_check(real_dev))
3420 return mlxsw_sp_inetaddr_vport_event(vlan_dev, real_dev, event,
3422 else if (netif_is_lag_master(real_dev))
3423 return __mlxsw_sp_inetaddr_lag_event(vlan_dev, real_dev, event,
3425 else if (netif_is_bridge_master(real_dev) &&
3426 mlxsw_sp->master_bridge.dev == real_dev)
3427 return mlxsw_sp_inetaddr_bridge_event(vlan_dev, real_dev,
3433 static int mlxsw_sp_inetaddr_event(struct notifier_block *unused,
3434 unsigned long event, void *ptr)
3436 struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
3437 struct net_device *dev = ifa->ifa_dev->dev;
3438 struct mlxsw_sp *mlxsw_sp;
3439 struct mlxsw_sp_rif *r;
3442 mlxsw_sp = mlxsw_sp_lower_get(dev);
3446 r = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev);
3447 if (!mlxsw_sp_rif_should_config(r, event))
3450 if (mlxsw_sp_port_dev_check(dev))
3451 err = mlxsw_sp_inetaddr_port_event(dev, event);
3452 else if (netif_is_lag_master(dev))
3453 err = mlxsw_sp_inetaddr_lag_event(dev, event);
3454 else if (netif_is_bridge_master(dev))
3455 err = mlxsw_sp_inetaddr_bridge_event(dev, dev, event);
3456 else if (is_vlan_dev(dev))
3457 err = mlxsw_sp_inetaddr_vlan_event(dev, event);
3460 return notifier_from_errno(err);
3463 static int mlxsw_sp_rif_edit(struct mlxsw_sp *mlxsw_sp, u16 rif,
3464 const char *mac, int mtu)
3466 char ritr_pl[MLXSW_REG_RITR_LEN];
3469 mlxsw_reg_ritr_rif_pack(ritr_pl, rif);
3470 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
3474 mlxsw_reg_ritr_mtu_set(ritr_pl, mtu);
3475 mlxsw_reg_ritr_if_mac_memcpy_to(ritr_pl, mac);
3476 mlxsw_reg_ritr_op_set(ritr_pl, MLXSW_REG_RITR_RIF_CREATE);
3477 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
3480 static int mlxsw_sp_netdevice_router_port_event(struct net_device *dev)
3482 struct mlxsw_sp *mlxsw_sp;
3483 struct mlxsw_sp_rif *r;
3486 mlxsw_sp = mlxsw_sp_lower_get(dev);
3490 r = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev);
3494 err = mlxsw_sp_rif_fdb_op(mlxsw_sp, r->addr, r->f->fid, false);
3498 err = mlxsw_sp_rif_edit(mlxsw_sp, r->rif, dev->dev_addr, dev->mtu);
3502 err = mlxsw_sp_rif_fdb_op(mlxsw_sp, dev->dev_addr, r->f->fid, true);
3504 goto err_rif_fdb_op;
3506 ether_addr_copy(r->addr, dev->dev_addr);
3509 netdev_dbg(dev, "Updated RIF=%d\n", r->rif);
3514 mlxsw_sp_rif_edit(mlxsw_sp, r->rif, r->addr, r->mtu);
3516 mlxsw_sp_rif_fdb_op(mlxsw_sp, r->addr, r->f->fid, true);
3520 static bool mlxsw_sp_lag_port_fid_member(struct mlxsw_sp_port *lag_port,
3523 if (mlxsw_sp_fid_is_vfid(fid))
3524 return mlxsw_sp_port_vport_find_by_fid(lag_port, fid);
3526 return test_bit(fid, lag_port->active_vlans);
3529 static bool mlxsw_sp_port_fdb_should_flush(struct mlxsw_sp_port *mlxsw_sp_port,
3532 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3533 u8 local_port = mlxsw_sp_port->local_port;
3534 u16 lag_id = mlxsw_sp_port->lag_id;
3537 if (!mlxsw_sp_port->lagged)
3540 for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) {
3541 struct mlxsw_sp_port *lag_port;
3543 lag_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i);
3544 if (!lag_port || lag_port->local_port == local_port)
3546 if (mlxsw_sp_lag_port_fid_member(lag_port, fid))
3554 mlxsw_sp_port_fdb_flush_by_port_fid(const struct mlxsw_sp_port *mlxsw_sp_port,
3557 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3558 char sfdf_pl[MLXSW_REG_SFDF_LEN];
3560 mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_PORT_AND_FID);
3561 mlxsw_reg_sfdf_fid_set(sfdf_pl, fid);
3562 mlxsw_reg_sfdf_port_fid_system_port_set(sfdf_pl,
3563 mlxsw_sp_port->local_port);
3565 netdev_dbg(mlxsw_sp_port->dev, "FDB flushed using Port=%d, FID=%d\n",
3566 mlxsw_sp_port->local_port, fid);
3568 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
3572 mlxsw_sp_port_fdb_flush_by_lag_id_fid(const struct mlxsw_sp_port *mlxsw_sp_port,
3575 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3576 char sfdf_pl[MLXSW_REG_SFDF_LEN];
3578 mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_LAG_AND_FID);
3579 mlxsw_reg_sfdf_fid_set(sfdf_pl, fid);
3580 mlxsw_reg_sfdf_lag_fid_lag_id_set(sfdf_pl, mlxsw_sp_port->lag_id);
3582 netdev_dbg(mlxsw_sp_port->dev, "FDB flushed using LAG ID=%d, FID=%d\n",
3583 mlxsw_sp_port->lag_id, fid);
3585 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
3588 int mlxsw_sp_port_fdb_flush(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid)
3590 if (!mlxsw_sp_port_fdb_should_flush(mlxsw_sp_port, fid))
3593 if (mlxsw_sp_port->lagged)
3594 return mlxsw_sp_port_fdb_flush_by_lag_id_fid(mlxsw_sp_port,
3597 return mlxsw_sp_port_fdb_flush_by_port_fid(mlxsw_sp_port, fid);
3600 static void mlxsw_sp_master_bridge_gone_sync(struct mlxsw_sp *mlxsw_sp)
3602 struct mlxsw_sp_fid *f, *tmp;
3604 list_for_each_entry_safe(f, tmp, &mlxsw_sp->fids, list)
3605 if (--f->ref_count == 0)
3606 mlxsw_sp_fid_destroy(mlxsw_sp, f);
3611 static bool mlxsw_sp_master_bridge_check(struct mlxsw_sp *mlxsw_sp,
3612 struct net_device *br_dev)
3614 return !mlxsw_sp->master_bridge.dev ||
3615 mlxsw_sp->master_bridge.dev == br_dev;
3618 static void mlxsw_sp_master_bridge_inc(struct mlxsw_sp *mlxsw_sp,
3619 struct net_device *br_dev)
3621 mlxsw_sp->master_bridge.dev = br_dev;
3622 mlxsw_sp->master_bridge.ref_count++;
3625 static void mlxsw_sp_master_bridge_dec(struct mlxsw_sp *mlxsw_sp)
3627 if (--mlxsw_sp->master_bridge.ref_count == 0) {
3628 mlxsw_sp->master_bridge.dev = NULL;
3629 /* It's possible upper VLAN devices are still holding
3630 * references to underlying FIDs. Drop the reference
3631 * and release the resources if it was the last one.
3632 * If it wasn't, then something bad happened.
3634 mlxsw_sp_master_bridge_gone_sync(mlxsw_sp);
3638 static int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port,
3639 struct net_device *br_dev)
3641 struct net_device *dev = mlxsw_sp_port->dev;
3644 /* When port is not bridged untagged packets are tagged with
3645 * PVID=VID=1, thereby creating an implicit VLAN interface in
3646 * the device. Remove it and let bridge code take care of its
3649 err = mlxsw_sp_port_kill_vid(dev, 0, 1);
3653 mlxsw_sp_master_bridge_inc(mlxsw_sp_port->mlxsw_sp, br_dev);
3655 mlxsw_sp_port->learning = 1;
3656 mlxsw_sp_port->learning_sync = 1;
3657 mlxsw_sp_port->uc_flood = 1;
3658 mlxsw_sp_port->bridged = 1;
3663 static void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port)
3665 struct net_device *dev = mlxsw_sp_port->dev;
3667 mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
3669 mlxsw_sp_master_bridge_dec(mlxsw_sp_port->mlxsw_sp);
3671 mlxsw_sp_port->learning = 0;
3672 mlxsw_sp_port->learning_sync = 0;
3673 mlxsw_sp_port->uc_flood = 0;
3674 mlxsw_sp_port->bridged = 0;
3676 /* Add implicit VLAN interface in the device, so that untagged
3677 * packets will be classified to the default vFID.
3679 mlxsw_sp_port_add_vid(dev, 0, 1);
3682 static int mlxsw_sp_lag_create(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
3684 char sldr_pl[MLXSW_REG_SLDR_LEN];
3686 mlxsw_reg_sldr_lag_create_pack(sldr_pl, lag_id);
3687 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
3690 static int mlxsw_sp_lag_destroy(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
3692 char sldr_pl[MLXSW_REG_SLDR_LEN];
3694 mlxsw_reg_sldr_lag_destroy_pack(sldr_pl, lag_id);
3695 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
3698 static int mlxsw_sp_lag_col_port_add(struct mlxsw_sp_port *mlxsw_sp_port,
3699 u16 lag_id, u8 port_index)
3701 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3702 char slcor_pl[MLXSW_REG_SLCOR_LEN];
3704 mlxsw_reg_slcor_port_add_pack(slcor_pl, mlxsw_sp_port->local_port,
3705 lag_id, port_index);
3706 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
3709 static int mlxsw_sp_lag_col_port_remove(struct mlxsw_sp_port *mlxsw_sp_port,
3712 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3713 char slcor_pl[MLXSW_REG_SLCOR_LEN];
3715 mlxsw_reg_slcor_port_remove_pack(slcor_pl, mlxsw_sp_port->local_port,
3717 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
3720 static int mlxsw_sp_lag_col_port_enable(struct mlxsw_sp_port *mlxsw_sp_port,
3723 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3724 char slcor_pl[MLXSW_REG_SLCOR_LEN];
3726 mlxsw_reg_slcor_col_enable_pack(slcor_pl, mlxsw_sp_port->local_port,
3728 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
3731 static int mlxsw_sp_lag_col_port_disable(struct mlxsw_sp_port *mlxsw_sp_port,
3734 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3735 char slcor_pl[MLXSW_REG_SLCOR_LEN];
3737 mlxsw_reg_slcor_col_disable_pack(slcor_pl, mlxsw_sp_port->local_port,
3739 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
3742 static int mlxsw_sp_lag_index_get(struct mlxsw_sp *mlxsw_sp,
3743 struct net_device *lag_dev,
3746 struct mlxsw_sp_upper *lag;
3747 int free_lag_id = -1;
3750 for (i = 0; i < MLXSW_SP_LAG_MAX; i++) {
3751 lag = mlxsw_sp_lag_get(mlxsw_sp, i);
3752 if (lag->ref_count) {
3753 if (lag->dev == lag_dev) {
3757 } else if (free_lag_id < 0) {
3761 if (free_lag_id < 0)
3763 *p_lag_id = free_lag_id;
3768 mlxsw_sp_master_lag_check(struct mlxsw_sp *mlxsw_sp,
3769 struct net_device *lag_dev,
3770 struct netdev_lag_upper_info *lag_upper_info)
3774 if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0)
3776 if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH)
3781 static int mlxsw_sp_port_lag_index_get(struct mlxsw_sp *mlxsw_sp,
3782 u16 lag_id, u8 *p_port_index)
3786 for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) {
3787 if (!mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i)) {
3796 mlxsw_sp_port_pvid_vport_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
3799 struct mlxsw_sp_port *mlxsw_sp_vport;
3800 struct mlxsw_sp_fid *f;
3802 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, 1);
3803 if (WARN_ON(!mlxsw_sp_vport))
3806 /* If vPort is assigned a RIF, then leave it since it's no
3809 f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
3811 f->leave(mlxsw_sp_vport);
3813 mlxsw_sp_vport->lag_id = lag_id;
3814 mlxsw_sp_vport->lagged = 1;
3818 mlxsw_sp_port_pvid_vport_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port)
3820 struct mlxsw_sp_port *mlxsw_sp_vport;
3821 struct mlxsw_sp_fid *f;
3823 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, 1);
3824 if (WARN_ON(!mlxsw_sp_vport))
3827 f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
3829 f->leave(mlxsw_sp_vport);
3831 mlxsw_sp_vport->lagged = 0;
3834 static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
3835 struct net_device *lag_dev)
3837 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3838 struct mlxsw_sp_upper *lag;
3843 err = mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id);
3846 lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id);
3847 if (!lag->ref_count) {
3848 err = mlxsw_sp_lag_create(mlxsw_sp, lag_id);
3854 err = mlxsw_sp_port_lag_index_get(mlxsw_sp, lag_id, &port_index);
3857 err = mlxsw_sp_lag_col_port_add(mlxsw_sp_port, lag_id, port_index);
3859 goto err_col_port_add;
3860 err = mlxsw_sp_lag_col_port_enable(mlxsw_sp_port, lag_id);
3862 goto err_col_port_enable;
3864 mlxsw_core_lag_mapping_set(mlxsw_sp->core, lag_id, port_index,
3865 mlxsw_sp_port->local_port);
3866 mlxsw_sp_port->lag_id = lag_id;
3867 mlxsw_sp_port->lagged = 1;
3870 mlxsw_sp_port_pvid_vport_lag_join(mlxsw_sp_port, lag_id);
3874 err_col_port_enable:
3875 mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id);
3877 if (!lag->ref_count)
3878 mlxsw_sp_lag_destroy(mlxsw_sp, lag_id);
3882 static void mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port,
3883 struct net_device *lag_dev)
3885 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3886 u16 lag_id = mlxsw_sp_port->lag_id;
3887 struct mlxsw_sp_upper *lag;
3889 if (!mlxsw_sp_port->lagged)
3891 lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id);
3892 WARN_ON(lag->ref_count == 0);
3894 mlxsw_sp_lag_col_port_disable(mlxsw_sp_port, lag_id);
3895 mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id);
3897 if (mlxsw_sp_port->bridged) {
3898 mlxsw_sp_port_active_vlans_del(mlxsw_sp_port);
3899 mlxsw_sp_port_bridge_leave(mlxsw_sp_port);
3902 if (lag->ref_count == 1)
3903 mlxsw_sp_lag_destroy(mlxsw_sp, lag_id);
3905 mlxsw_core_lag_mapping_clear(mlxsw_sp->core, lag_id,
3906 mlxsw_sp_port->local_port);
3907 mlxsw_sp_port->lagged = 0;
3910 mlxsw_sp_port_pvid_vport_lag_leave(mlxsw_sp_port);
3913 static int mlxsw_sp_lag_dist_port_add(struct mlxsw_sp_port *mlxsw_sp_port,
3916 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3917 char sldr_pl[MLXSW_REG_SLDR_LEN];
3919 mlxsw_reg_sldr_lag_add_port_pack(sldr_pl, lag_id,
3920 mlxsw_sp_port->local_port);
3921 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
3924 static int mlxsw_sp_lag_dist_port_remove(struct mlxsw_sp_port *mlxsw_sp_port,
3927 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3928 char sldr_pl[MLXSW_REG_SLDR_LEN];
3930 mlxsw_reg_sldr_lag_remove_port_pack(sldr_pl, lag_id,
3931 mlxsw_sp_port->local_port);
3932 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
3935 static int mlxsw_sp_port_lag_tx_en_set(struct mlxsw_sp_port *mlxsw_sp_port,
3936 bool lag_tx_enabled)
3939 return mlxsw_sp_lag_dist_port_add(mlxsw_sp_port,
3940 mlxsw_sp_port->lag_id);
3942 return mlxsw_sp_lag_dist_port_remove(mlxsw_sp_port,
3943 mlxsw_sp_port->lag_id);
3946 static int mlxsw_sp_port_lag_changed(struct mlxsw_sp_port *mlxsw_sp_port,
3947 struct netdev_lag_lower_state_info *info)
3949 return mlxsw_sp_port_lag_tx_en_set(mlxsw_sp_port, info->tx_enabled);
3952 static int mlxsw_sp_port_vlan_link(struct mlxsw_sp_port *mlxsw_sp_port,
3953 struct net_device *vlan_dev)
3955 struct mlxsw_sp_port *mlxsw_sp_vport;
3956 u16 vid = vlan_dev_vlan_id(vlan_dev);
3958 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
3959 if (WARN_ON(!mlxsw_sp_vport))
3962 mlxsw_sp_vport->dev = vlan_dev;
3967 static void mlxsw_sp_port_vlan_unlink(struct mlxsw_sp_port *mlxsw_sp_port,
3968 struct net_device *vlan_dev)
3970 struct mlxsw_sp_port *mlxsw_sp_vport;
3971 u16 vid = vlan_dev_vlan_id(vlan_dev);
3973 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
3974 if (WARN_ON(!mlxsw_sp_vport))
3977 mlxsw_sp_vport->dev = mlxsw_sp_port->dev;
3980 static int mlxsw_sp_netdevice_port_upper_event(struct net_device *dev,
3981 unsigned long event, void *ptr)
3983 struct netdev_notifier_changeupper_info *info;
3984 struct mlxsw_sp_port *mlxsw_sp_port;
3985 struct net_device *upper_dev;
3986 struct mlxsw_sp *mlxsw_sp;
3989 mlxsw_sp_port = netdev_priv(dev);
3990 mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3994 case NETDEV_PRECHANGEUPPER:
3995 upper_dev = info->upper_dev;
3996 if (!is_vlan_dev(upper_dev) &&
3997 !netif_is_lag_master(upper_dev) &&
3998 !netif_is_bridge_master(upper_dev))
4002 /* HW limitation forbids to put ports to multiple bridges. */
4003 if (netif_is_bridge_master(upper_dev) &&
4004 !mlxsw_sp_master_bridge_check(mlxsw_sp, upper_dev))
4006 if (netif_is_lag_master(upper_dev) &&
4007 !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev,
4010 if (netif_is_lag_master(upper_dev) && vlan_uses_dev(dev))
4012 if (netif_is_lag_port(dev) && is_vlan_dev(upper_dev) &&
4013 !netif_is_lag_master(vlan_dev_real_dev(upper_dev)))
4016 case NETDEV_CHANGEUPPER:
4017 upper_dev = info->upper_dev;
4018 if (is_vlan_dev(upper_dev)) {
4020 err = mlxsw_sp_port_vlan_link(mlxsw_sp_port,
4023 mlxsw_sp_port_vlan_unlink(mlxsw_sp_port,
4025 } else if (netif_is_bridge_master(upper_dev)) {
4027 err = mlxsw_sp_port_bridge_join(mlxsw_sp_port,
4030 mlxsw_sp_port_bridge_leave(mlxsw_sp_port);
4031 } else if (netif_is_lag_master(upper_dev)) {
4033 err = mlxsw_sp_port_lag_join(mlxsw_sp_port,
4036 mlxsw_sp_port_lag_leave(mlxsw_sp_port,
4048 static int mlxsw_sp_netdevice_port_lower_event(struct net_device *dev,
4049 unsigned long event, void *ptr)
4051 struct netdev_notifier_changelowerstate_info *info;
4052 struct mlxsw_sp_port *mlxsw_sp_port;
4055 mlxsw_sp_port = netdev_priv(dev);
4059 case NETDEV_CHANGELOWERSTATE:
4060 if (netif_is_lag_port(dev) && mlxsw_sp_port->lagged) {
4061 err = mlxsw_sp_port_lag_changed(mlxsw_sp_port,
4062 info->lower_state_info);
4064 netdev_err(dev, "Failed to reflect link aggregation lower state change\n");
4072 static int mlxsw_sp_netdevice_port_event(struct net_device *dev,
4073 unsigned long event, void *ptr)
4076 case NETDEV_PRECHANGEUPPER:
4077 case NETDEV_CHANGEUPPER:
4078 return mlxsw_sp_netdevice_port_upper_event(dev, event, ptr);
4079 case NETDEV_CHANGELOWERSTATE:
4080 return mlxsw_sp_netdevice_port_lower_event(dev, event, ptr);
4086 static int mlxsw_sp_netdevice_lag_event(struct net_device *lag_dev,
4087 unsigned long event, void *ptr)
4089 struct net_device *dev;
4090 struct list_head *iter;
4093 netdev_for_each_lower_dev(lag_dev, dev, iter) {
4094 if (mlxsw_sp_port_dev_check(dev)) {
4095 ret = mlxsw_sp_netdevice_port_event(dev, event, ptr);
4104 static int mlxsw_sp_master_bridge_vlan_link(struct mlxsw_sp *mlxsw_sp,
4105 struct net_device *vlan_dev)
4107 u16 fid = vlan_dev_vlan_id(vlan_dev);
4108 struct mlxsw_sp_fid *f;
4110 f = mlxsw_sp_fid_find(mlxsw_sp, fid);
4112 f = mlxsw_sp_fid_create(mlxsw_sp, fid);
4122 static void mlxsw_sp_master_bridge_vlan_unlink(struct mlxsw_sp *mlxsw_sp,
4123 struct net_device *vlan_dev)
4125 u16 fid = vlan_dev_vlan_id(vlan_dev);
4126 struct mlxsw_sp_fid *f;
4128 f = mlxsw_sp_fid_find(mlxsw_sp, fid);
4130 mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
4131 if (f && --f->ref_count == 0)
4132 mlxsw_sp_fid_destroy(mlxsw_sp, f);
4135 static int mlxsw_sp_netdevice_bridge_event(struct net_device *br_dev,
4136 unsigned long event, void *ptr)
4138 struct netdev_notifier_changeupper_info *info;
4139 struct net_device *upper_dev;
4140 struct mlxsw_sp *mlxsw_sp;
4143 mlxsw_sp = mlxsw_sp_lower_get(br_dev);
4146 if (br_dev != mlxsw_sp->master_bridge.dev)
4152 case NETDEV_CHANGEUPPER:
4153 upper_dev = info->upper_dev;
4154 if (!is_vlan_dev(upper_dev))
4156 if (info->linking) {
4157 err = mlxsw_sp_master_bridge_vlan_link(mlxsw_sp,
4162 mlxsw_sp_master_bridge_vlan_unlink(mlxsw_sp, upper_dev);
4170 static u16 mlxsw_sp_avail_vfid_get(const struct mlxsw_sp *mlxsw_sp)
4172 return find_first_zero_bit(mlxsw_sp->vfids.mapped,
4176 static int mlxsw_sp_vfid_op(struct mlxsw_sp *mlxsw_sp, u16 fid, bool create)
4178 char sfmr_pl[MLXSW_REG_SFMR_LEN];
4180 mlxsw_reg_sfmr_pack(sfmr_pl, !create, fid, 0);
4181 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
4184 static void mlxsw_sp_vport_vfid_leave(struct mlxsw_sp_port *mlxsw_sp_vport);
4186 static struct mlxsw_sp_fid *mlxsw_sp_vfid_create(struct mlxsw_sp *mlxsw_sp,
4187 struct net_device *br_dev)
4189 struct device *dev = mlxsw_sp->bus_info->dev;
4190 struct mlxsw_sp_fid *f;
4194 vfid = mlxsw_sp_avail_vfid_get(mlxsw_sp);
4195 if (vfid == MLXSW_SP_VFID_MAX) {
4196 dev_err(dev, "No available vFIDs\n");
4197 return ERR_PTR(-ERANGE);
4200 fid = mlxsw_sp_vfid_to_fid(vfid);
4201 err = mlxsw_sp_vfid_op(mlxsw_sp, fid, true);
4203 dev_err(dev, "Failed to create FID=%d\n", fid);
4204 return ERR_PTR(err);
4207 f = kzalloc(sizeof(*f), GFP_KERNEL);
4209 goto err_allocate_vfid;
4211 f->leave = mlxsw_sp_vport_vfid_leave;
4215 list_add(&f->list, &mlxsw_sp->vfids.list);
4216 set_bit(vfid, mlxsw_sp->vfids.mapped);
4221 mlxsw_sp_vfid_op(mlxsw_sp, fid, false);
4222 return ERR_PTR(-ENOMEM);
4225 static void mlxsw_sp_vfid_destroy(struct mlxsw_sp *mlxsw_sp,
4226 struct mlxsw_sp_fid *f)
4228 u16 vfid = mlxsw_sp_fid_to_vfid(f->fid);
4231 clear_bit(vfid, mlxsw_sp->vfids.mapped);
4235 mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
4239 mlxsw_sp_vfid_op(mlxsw_sp, fid, false);
4242 static int mlxsw_sp_vport_fid_map(struct mlxsw_sp_port *mlxsw_sp_vport, u16 fid,
4245 enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
4246 u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
4248 return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, mt, valid, fid,
4252 static int mlxsw_sp_vport_vfid_join(struct mlxsw_sp_port *mlxsw_sp_vport,
4253 struct net_device *br_dev)
4255 struct mlxsw_sp_fid *f;
4258 f = mlxsw_sp_vfid_find(mlxsw_sp_vport->mlxsw_sp, br_dev);
4260 f = mlxsw_sp_vfid_create(mlxsw_sp_vport->mlxsw_sp, br_dev);
4265 err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, true);
4267 goto err_vport_flood_set;
4269 err = mlxsw_sp_vport_fid_map(mlxsw_sp_vport, f->fid, true);
4271 goto err_vport_fid_map;
4273 mlxsw_sp_vport_fid_set(mlxsw_sp_vport, f);
4276 netdev_dbg(mlxsw_sp_vport->dev, "Joined FID=%d\n", f->fid);
4281 mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, false);
4282 err_vport_flood_set:
4284 mlxsw_sp_vfid_destroy(mlxsw_sp_vport->mlxsw_sp, f);
4288 static void mlxsw_sp_vport_vfid_leave(struct mlxsw_sp_port *mlxsw_sp_vport)
4290 struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
4292 netdev_dbg(mlxsw_sp_vport->dev, "Left FID=%d\n", f->fid);
4294 mlxsw_sp_vport_fid_map(mlxsw_sp_vport, f->fid, false);
4296 mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, false);
4298 mlxsw_sp_port_fdb_flush(mlxsw_sp_vport, f->fid);
4300 mlxsw_sp_vport_fid_set(mlxsw_sp_vport, NULL);
4301 if (--f->ref_count == 0)
4302 mlxsw_sp_vfid_destroy(mlxsw_sp_vport->mlxsw_sp, f);
4305 static int mlxsw_sp_vport_bridge_join(struct mlxsw_sp_port *mlxsw_sp_vport,
4306 struct net_device *br_dev)
4308 struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
4309 u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
4310 struct net_device *dev = mlxsw_sp_vport->dev;
4313 if (f && !WARN_ON(!f->leave))
4314 f->leave(mlxsw_sp_vport);
4316 err = mlxsw_sp_vport_vfid_join(mlxsw_sp_vport, br_dev);
4318 netdev_err(dev, "Failed to join vFID\n");
4322 err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true);
4324 netdev_err(dev, "Failed to enable learning\n");
4325 goto err_port_vid_learning_set;
4328 mlxsw_sp_vport->learning = 1;
4329 mlxsw_sp_vport->learning_sync = 1;
4330 mlxsw_sp_vport->uc_flood = 1;
4331 mlxsw_sp_vport->bridged = 1;
4335 err_port_vid_learning_set:
4336 mlxsw_sp_vport_vfid_leave(mlxsw_sp_vport);
4340 static void mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_vport)
4342 u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
4344 mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false);
4346 mlxsw_sp_vport_vfid_leave(mlxsw_sp_vport);
4348 mlxsw_sp_vport->learning = 0;
4349 mlxsw_sp_vport->learning_sync = 0;
4350 mlxsw_sp_vport->uc_flood = 0;
4351 mlxsw_sp_vport->bridged = 0;
4355 mlxsw_sp_port_master_bridge_check(const struct mlxsw_sp_port *mlxsw_sp_port,
4356 const struct net_device *br_dev)
4358 struct mlxsw_sp_port *mlxsw_sp_vport;
4360 list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list,
4362 struct net_device *dev = mlxsw_sp_vport_dev_get(mlxsw_sp_vport);
4364 if (dev && dev == br_dev)
4371 static int mlxsw_sp_netdevice_vport_event(struct net_device *dev,
4372 unsigned long event, void *ptr,
4375 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
4376 struct netdev_notifier_changeupper_info *info = ptr;
4377 struct mlxsw_sp_port *mlxsw_sp_vport;
4378 struct net_device *upper_dev;
4381 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
4384 case NETDEV_PRECHANGEUPPER:
4385 upper_dev = info->upper_dev;
4386 if (!netif_is_bridge_master(upper_dev))
4390 /* We can't have multiple VLAN interfaces configured on
4391 * the same port and being members in the same bridge.
4393 if (!mlxsw_sp_port_master_bridge_check(mlxsw_sp_port,
4397 case NETDEV_CHANGEUPPER:
4398 upper_dev = info->upper_dev;
4399 if (info->linking) {
4400 if (WARN_ON(!mlxsw_sp_vport))
4402 err = mlxsw_sp_vport_bridge_join(mlxsw_sp_vport,
4405 if (!mlxsw_sp_vport)
4407 mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport);
4414 static int mlxsw_sp_netdevice_lag_vport_event(struct net_device *lag_dev,
4415 unsigned long event, void *ptr,
4418 struct net_device *dev;
4419 struct list_head *iter;
4422 netdev_for_each_lower_dev(lag_dev, dev, iter) {
4423 if (mlxsw_sp_port_dev_check(dev)) {
4424 ret = mlxsw_sp_netdevice_vport_event(dev, event, ptr,
4434 static int mlxsw_sp_netdevice_vlan_event(struct net_device *vlan_dev,
4435 unsigned long event, void *ptr)
4437 struct net_device *real_dev = vlan_dev_real_dev(vlan_dev);
4438 u16 vid = vlan_dev_vlan_id(vlan_dev);
4440 if (mlxsw_sp_port_dev_check(real_dev))
4441 return mlxsw_sp_netdevice_vport_event(real_dev, event, ptr,
4443 else if (netif_is_lag_master(real_dev))
4444 return mlxsw_sp_netdevice_lag_vport_event(real_dev, event, ptr,
4450 static int mlxsw_sp_netdevice_event(struct notifier_block *unused,
4451 unsigned long event, void *ptr)
4453 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4456 if (event == NETDEV_CHANGEADDR || event == NETDEV_CHANGEMTU)
4457 err = mlxsw_sp_netdevice_router_port_event(dev);
4458 else if (mlxsw_sp_port_dev_check(dev))
4459 err = mlxsw_sp_netdevice_port_event(dev, event, ptr);
4460 else if (netif_is_lag_master(dev))
4461 err = mlxsw_sp_netdevice_lag_event(dev, event, ptr);
4462 else if (netif_is_bridge_master(dev))
4463 err = mlxsw_sp_netdevice_bridge_event(dev, event, ptr);
4464 else if (is_vlan_dev(dev))
4465 err = mlxsw_sp_netdevice_vlan_event(dev, event, ptr);
4467 return notifier_from_errno(err);
4470 static struct notifier_block mlxsw_sp_netdevice_nb __read_mostly = {
4471 .notifier_call = mlxsw_sp_netdevice_event,
4474 static struct notifier_block mlxsw_sp_inetaddr_nb __read_mostly = {
4475 .notifier_call = mlxsw_sp_inetaddr_event,
4476 .priority = 10, /* Must be called before FIB notifier block */
4479 static int __init mlxsw_sp_module_init(void)
4483 register_netdevice_notifier(&mlxsw_sp_netdevice_nb);
4484 register_inetaddr_notifier(&mlxsw_sp_inetaddr_nb);
4485 err = mlxsw_core_driver_register(&mlxsw_sp_driver);
4487 goto err_core_driver_register;
4490 err_core_driver_register:
4491 unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb);
4495 static void __exit mlxsw_sp_module_exit(void)
4497 mlxsw_core_driver_unregister(&mlxsw_sp_driver);
4498 unregister_inetaddr_notifier(&mlxsw_sp_inetaddr_nb);
4499 unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb);
4502 module_init(mlxsw_sp_module_init);
4503 module_exit(mlxsw_sp_module_exit);
4505 MODULE_LICENSE("Dual BSD/GPL");
4506 MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>");
4507 MODULE_DESCRIPTION("Mellanox Spectrum driver");
4508 MODULE_MLXSW_DRIVER_ALIAS(MLXSW_DEVICE_KIND_SPECTRUM);