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;
1127 if (!tc_single_action(cls->exts)) {
1128 netdev_err(mlxsw_sp_port->dev, "only singular actions are supported\n");
1132 tcf_exts_to_list(cls->exts, &actions);
1133 list_for_each_entry(a, &actions, list) {
1134 if (!is_tcf_mirred_mirror(a) || protocol != htons(ETH_P_ALL))
1137 err = mlxsw_sp_port_add_cls_matchall_mirror(mlxsw_sp_port, cls,
1146 static void mlxsw_sp_port_del_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port,
1147 struct tc_cls_matchall_offload *cls)
1149 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1150 struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;
1151 enum mlxsw_sp_span_type span_type;
1152 struct mlxsw_sp_port *to_port;
1154 mall_tc_entry = mlxsw_sp_port_mirror_entry_find(mlxsw_sp_port,
1156 if (!mall_tc_entry) {
1157 netdev_dbg(mlxsw_sp_port->dev, "tc entry not found on port\n");
1161 switch (mall_tc_entry->type) {
1162 case MLXSW_SP_PORT_MALL_MIRROR:
1163 to_port = mlxsw_sp->ports[mall_tc_entry->mirror.to_local_port];
1164 span_type = mall_tc_entry->mirror.ingress ?
1165 MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS;
1167 mlxsw_sp_span_mirror_remove(mlxsw_sp_port, to_port, span_type);
1173 list_del(&mall_tc_entry->list);
1174 kfree(mall_tc_entry);
1177 static int mlxsw_sp_setup_tc(struct net_device *dev, u32 handle,
1178 __be16 proto, struct tc_to_netdev *tc)
1180 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1181 bool ingress = TC_H_MAJ(handle) == TC_H_MAJ(TC_H_INGRESS);
1183 if (tc->type == TC_SETUP_MATCHALL) {
1184 switch (tc->cls_mall->command) {
1185 case TC_CLSMATCHALL_REPLACE:
1186 return mlxsw_sp_port_add_cls_matchall(mlxsw_sp_port,
1190 case TC_CLSMATCHALL_DESTROY:
1191 mlxsw_sp_port_del_cls_matchall(mlxsw_sp_port,
1202 static const struct net_device_ops mlxsw_sp_port_netdev_ops = {
1203 .ndo_open = mlxsw_sp_port_open,
1204 .ndo_stop = mlxsw_sp_port_stop,
1205 .ndo_start_xmit = mlxsw_sp_port_xmit,
1206 .ndo_setup_tc = mlxsw_sp_setup_tc,
1207 .ndo_set_rx_mode = mlxsw_sp_set_rx_mode,
1208 .ndo_set_mac_address = mlxsw_sp_port_set_mac_address,
1209 .ndo_change_mtu = mlxsw_sp_port_change_mtu,
1210 .ndo_get_stats64 = mlxsw_sp_port_get_stats64,
1211 .ndo_vlan_rx_add_vid = mlxsw_sp_port_add_vid,
1212 .ndo_vlan_rx_kill_vid = mlxsw_sp_port_kill_vid,
1213 .ndo_neigh_construct = mlxsw_sp_router_neigh_construct,
1214 .ndo_neigh_destroy = mlxsw_sp_router_neigh_destroy,
1215 .ndo_fdb_add = switchdev_port_fdb_add,
1216 .ndo_fdb_del = switchdev_port_fdb_del,
1217 .ndo_fdb_dump = switchdev_port_fdb_dump,
1218 .ndo_bridge_setlink = switchdev_port_bridge_setlink,
1219 .ndo_bridge_getlink = switchdev_port_bridge_getlink,
1220 .ndo_bridge_dellink = switchdev_port_bridge_dellink,
1221 .ndo_get_phys_port_name = mlxsw_sp_port_get_phys_port_name,
1224 static void mlxsw_sp_port_get_drvinfo(struct net_device *dev,
1225 struct ethtool_drvinfo *drvinfo)
1227 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1228 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1230 strlcpy(drvinfo->driver, mlxsw_sp_driver_name, sizeof(drvinfo->driver));
1231 strlcpy(drvinfo->version, mlxsw_sp_driver_version,
1232 sizeof(drvinfo->version));
1233 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
1235 mlxsw_sp->bus_info->fw_rev.major,
1236 mlxsw_sp->bus_info->fw_rev.minor,
1237 mlxsw_sp->bus_info->fw_rev.subminor);
1238 strlcpy(drvinfo->bus_info, mlxsw_sp->bus_info->device_name,
1239 sizeof(drvinfo->bus_info));
1242 static void mlxsw_sp_port_get_pauseparam(struct net_device *dev,
1243 struct ethtool_pauseparam *pause)
1245 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1247 pause->rx_pause = mlxsw_sp_port->link.rx_pause;
1248 pause->tx_pause = mlxsw_sp_port->link.tx_pause;
1251 static int mlxsw_sp_port_pause_set(struct mlxsw_sp_port *mlxsw_sp_port,
1252 struct ethtool_pauseparam *pause)
1254 char pfcc_pl[MLXSW_REG_PFCC_LEN];
1256 mlxsw_reg_pfcc_pack(pfcc_pl, mlxsw_sp_port->local_port);
1257 mlxsw_reg_pfcc_pprx_set(pfcc_pl, pause->rx_pause);
1258 mlxsw_reg_pfcc_pptx_set(pfcc_pl, pause->tx_pause);
1260 return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pfcc),
1264 static int mlxsw_sp_port_set_pauseparam(struct net_device *dev,
1265 struct ethtool_pauseparam *pause)
1267 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1268 bool pause_en = pause->tx_pause || pause->rx_pause;
1271 if (mlxsw_sp_port->dcb.pfc && mlxsw_sp_port->dcb.pfc->pfc_en) {
1272 netdev_err(dev, "PFC already enabled on port\n");
1276 if (pause->autoneg) {
1277 netdev_err(dev, "PAUSE frames autonegotiation isn't supported\n");
1281 err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
1283 netdev_err(dev, "Failed to configure port's headroom\n");
1287 err = mlxsw_sp_port_pause_set(mlxsw_sp_port, pause);
1289 netdev_err(dev, "Failed to set PAUSE parameters\n");
1290 goto err_port_pause_configure;
1293 mlxsw_sp_port->link.rx_pause = pause->rx_pause;
1294 mlxsw_sp_port->link.tx_pause = pause->tx_pause;
1298 err_port_pause_configure:
1299 pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port);
1300 mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
1304 struct mlxsw_sp_port_hw_stats {
1305 char str[ETH_GSTRING_LEN];
1306 u64 (*getter)(char *payload);
1309 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_stats[] = {
1311 .str = "a_frames_transmitted_ok",
1312 .getter = mlxsw_reg_ppcnt_a_frames_transmitted_ok_get,
1315 .str = "a_frames_received_ok",
1316 .getter = mlxsw_reg_ppcnt_a_frames_received_ok_get,
1319 .str = "a_frame_check_sequence_errors",
1320 .getter = mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get,
1323 .str = "a_alignment_errors",
1324 .getter = mlxsw_reg_ppcnt_a_alignment_errors_get,
1327 .str = "a_octets_transmitted_ok",
1328 .getter = mlxsw_reg_ppcnt_a_octets_transmitted_ok_get,
1331 .str = "a_octets_received_ok",
1332 .getter = mlxsw_reg_ppcnt_a_octets_received_ok_get,
1335 .str = "a_multicast_frames_xmitted_ok",
1336 .getter = mlxsw_reg_ppcnt_a_multicast_frames_xmitted_ok_get,
1339 .str = "a_broadcast_frames_xmitted_ok",
1340 .getter = mlxsw_reg_ppcnt_a_broadcast_frames_xmitted_ok_get,
1343 .str = "a_multicast_frames_received_ok",
1344 .getter = mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get,
1347 .str = "a_broadcast_frames_received_ok",
1348 .getter = mlxsw_reg_ppcnt_a_broadcast_frames_received_ok_get,
1351 .str = "a_in_range_length_errors",
1352 .getter = mlxsw_reg_ppcnt_a_in_range_length_errors_get,
1355 .str = "a_out_of_range_length_field",
1356 .getter = mlxsw_reg_ppcnt_a_out_of_range_length_field_get,
1359 .str = "a_frame_too_long_errors",
1360 .getter = mlxsw_reg_ppcnt_a_frame_too_long_errors_get,
1363 .str = "a_symbol_error_during_carrier",
1364 .getter = mlxsw_reg_ppcnt_a_symbol_error_during_carrier_get,
1367 .str = "a_mac_control_frames_transmitted",
1368 .getter = mlxsw_reg_ppcnt_a_mac_control_frames_transmitted_get,
1371 .str = "a_mac_control_frames_received",
1372 .getter = mlxsw_reg_ppcnt_a_mac_control_frames_received_get,
1375 .str = "a_unsupported_opcodes_received",
1376 .getter = mlxsw_reg_ppcnt_a_unsupported_opcodes_received_get,
1379 .str = "a_pause_mac_ctrl_frames_received",
1380 .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_received_get,
1383 .str = "a_pause_mac_ctrl_frames_xmitted",
1384 .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_transmitted_get,
1388 #define MLXSW_SP_PORT_HW_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_stats)
1390 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_prio_stats[] = {
1392 .str = "rx_octets_prio",
1393 .getter = mlxsw_reg_ppcnt_rx_octets_get,
1396 .str = "rx_frames_prio",
1397 .getter = mlxsw_reg_ppcnt_rx_frames_get,
1400 .str = "tx_octets_prio",
1401 .getter = mlxsw_reg_ppcnt_tx_octets_get,
1404 .str = "tx_frames_prio",
1405 .getter = mlxsw_reg_ppcnt_tx_frames_get,
1408 .str = "rx_pause_prio",
1409 .getter = mlxsw_reg_ppcnt_rx_pause_get,
1412 .str = "rx_pause_duration_prio",
1413 .getter = mlxsw_reg_ppcnt_rx_pause_duration_get,
1416 .str = "tx_pause_prio",
1417 .getter = mlxsw_reg_ppcnt_tx_pause_get,
1420 .str = "tx_pause_duration_prio",
1421 .getter = mlxsw_reg_ppcnt_tx_pause_duration_get,
1425 #define MLXSW_SP_PORT_HW_PRIO_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_prio_stats)
1427 static u64 mlxsw_reg_ppcnt_tc_transmit_queue_bytes_get(char *ppcnt_pl)
1429 u64 transmit_queue = mlxsw_reg_ppcnt_tc_transmit_queue_get(ppcnt_pl);
1431 return MLXSW_SP_CELLS_TO_BYTES(transmit_queue);
1434 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_tc_stats[] = {
1436 .str = "tc_transmit_queue_tc",
1437 .getter = mlxsw_reg_ppcnt_tc_transmit_queue_bytes_get,
1440 .str = "tc_no_buffer_discard_uc_tc",
1441 .getter = mlxsw_reg_ppcnt_tc_no_buffer_discard_uc_get,
1445 #define MLXSW_SP_PORT_HW_TC_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_tc_stats)
1447 #define MLXSW_SP_PORT_ETHTOOL_STATS_LEN (MLXSW_SP_PORT_HW_STATS_LEN + \
1448 (MLXSW_SP_PORT_HW_PRIO_STATS_LEN + \
1449 MLXSW_SP_PORT_HW_TC_STATS_LEN) * \
1450 IEEE_8021QAZ_MAX_TCS)
1452 static void mlxsw_sp_port_get_prio_strings(u8 **p, int prio)
1456 for (i = 0; i < MLXSW_SP_PORT_HW_PRIO_STATS_LEN; i++) {
1457 snprintf(*p, ETH_GSTRING_LEN, "%s_%d",
1458 mlxsw_sp_port_hw_prio_stats[i].str, prio);
1459 *p += ETH_GSTRING_LEN;
1463 static void mlxsw_sp_port_get_tc_strings(u8 **p, int tc)
1467 for (i = 0; i < MLXSW_SP_PORT_HW_TC_STATS_LEN; i++) {
1468 snprintf(*p, ETH_GSTRING_LEN, "%s_%d",
1469 mlxsw_sp_port_hw_tc_stats[i].str, tc);
1470 *p += ETH_GSTRING_LEN;
1474 static void mlxsw_sp_port_get_strings(struct net_device *dev,
1475 u32 stringset, u8 *data)
1480 switch (stringset) {
1482 for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++) {
1483 memcpy(p, mlxsw_sp_port_hw_stats[i].str,
1485 p += ETH_GSTRING_LEN;
1488 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
1489 mlxsw_sp_port_get_prio_strings(&p, i);
1491 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
1492 mlxsw_sp_port_get_tc_strings(&p, i);
1498 static int mlxsw_sp_port_set_phys_id(struct net_device *dev,
1499 enum ethtool_phys_id_state state)
1501 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1502 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1503 char mlcr_pl[MLXSW_REG_MLCR_LEN];
1507 case ETHTOOL_ID_ACTIVE:
1510 case ETHTOOL_ID_INACTIVE:
1517 mlxsw_reg_mlcr_pack(mlcr_pl, mlxsw_sp_port->local_port, active);
1518 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mlcr), mlcr_pl);
1522 mlxsw_sp_get_hw_stats_by_group(struct mlxsw_sp_port_hw_stats **p_hw_stats,
1523 int *p_len, enum mlxsw_reg_ppcnt_grp grp)
1526 case MLXSW_REG_PPCNT_IEEE_8023_CNT:
1527 *p_hw_stats = mlxsw_sp_port_hw_stats;
1528 *p_len = MLXSW_SP_PORT_HW_STATS_LEN;
1530 case MLXSW_REG_PPCNT_PRIO_CNT:
1531 *p_hw_stats = mlxsw_sp_port_hw_prio_stats;
1532 *p_len = MLXSW_SP_PORT_HW_PRIO_STATS_LEN;
1534 case MLXSW_REG_PPCNT_TC_CNT:
1535 *p_hw_stats = mlxsw_sp_port_hw_tc_stats;
1536 *p_len = MLXSW_SP_PORT_HW_TC_STATS_LEN;
1545 static void __mlxsw_sp_port_get_stats(struct net_device *dev,
1546 enum mlxsw_reg_ppcnt_grp grp, int prio,
1547 u64 *data, int data_index)
1549 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1550 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1551 struct mlxsw_sp_port_hw_stats *hw_stats;
1552 char ppcnt_pl[MLXSW_REG_PPCNT_LEN];
1556 err = mlxsw_sp_get_hw_stats_by_group(&hw_stats, &len, grp);
1559 mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port, grp, prio);
1560 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl);
1561 for (i = 0; i < len; i++)
1562 data[data_index + i] = !err ? hw_stats[i].getter(ppcnt_pl) : 0;
1565 static void mlxsw_sp_port_get_stats(struct net_device *dev,
1566 struct ethtool_stats *stats, u64 *data)
1568 int i, data_index = 0;
1570 /* IEEE 802.3 Counters */
1571 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_IEEE_8023_CNT, 0,
1573 data_index = MLXSW_SP_PORT_HW_STATS_LEN;
1575 /* Per-Priority Counters */
1576 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
1577 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_PRIO_CNT, i,
1579 data_index += MLXSW_SP_PORT_HW_PRIO_STATS_LEN;
1582 /* Per-TC Counters */
1583 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
1584 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_TC_CNT, i,
1586 data_index += MLXSW_SP_PORT_HW_TC_STATS_LEN;
1590 static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset)
1594 return MLXSW_SP_PORT_ETHTOOL_STATS_LEN;
1600 struct mlxsw_sp_port_link_mode {
1607 static const struct mlxsw_sp_port_link_mode mlxsw_sp_port_link_mode[] = {
1609 .mask = MLXSW_REG_PTYS_ETH_SPEED_100BASE_T,
1610 .supported = SUPPORTED_100baseT_Full,
1611 .advertised = ADVERTISED_100baseT_Full,
1615 .mask = MLXSW_REG_PTYS_ETH_SPEED_100BASE_TX,
1619 .mask = MLXSW_REG_PTYS_ETH_SPEED_SGMII |
1620 MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX,
1621 .supported = SUPPORTED_1000baseKX_Full,
1622 .advertised = ADVERTISED_1000baseKX_Full,
1626 .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_T,
1627 .supported = SUPPORTED_10000baseT_Full,
1628 .advertised = ADVERTISED_10000baseT_Full,
1632 .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4 |
1633 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4,
1634 .supported = SUPPORTED_10000baseKX4_Full,
1635 .advertised = ADVERTISED_10000baseKX4_Full,
1639 .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
1640 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
1641 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
1642 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR,
1643 .supported = SUPPORTED_10000baseKR_Full,
1644 .advertised = ADVERTISED_10000baseKR_Full,
1648 .mask = MLXSW_REG_PTYS_ETH_SPEED_20GBASE_KR2,
1649 .supported = SUPPORTED_20000baseKR2_Full,
1650 .advertised = ADVERTISED_20000baseKR2_Full,
1654 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4,
1655 .supported = SUPPORTED_40000baseCR4_Full,
1656 .advertised = ADVERTISED_40000baseCR4_Full,
1660 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4,
1661 .supported = SUPPORTED_40000baseKR4_Full,
1662 .advertised = ADVERTISED_40000baseKR4_Full,
1666 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4,
1667 .supported = SUPPORTED_40000baseSR4_Full,
1668 .advertised = ADVERTISED_40000baseSR4_Full,
1672 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4,
1673 .supported = SUPPORTED_40000baseLR4_Full,
1674 .advertised = ADVERTISED_40000baseLR4_Full,
1678 .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR |
1679 MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR |
1680 MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR,
1684 .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR4 |
1685 MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2 |
1686 MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2,
1690 .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4,
1691 .supported = SUPPORTED_56000baseKR4_Full,
1692 .advertised = ADVERTISED_56000baseKR4_Full,
1696 .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4 |
1697 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
1698 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 |
1699 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4,
1704 #define MLXSW_SP_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp_port_link_mode)
1706 static u32 mlxsw_sp_from_ptys_supported_port(u32 ptys_eth_proto)
1708 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
1709 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
1710 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
1711 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
1712 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
1713 MLXSW_REG_PTYS_ETH_SPEED_SGMII))
1714 return SUPPORTED_FIBRE;
1716 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
1717 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
1718 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
1719 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 |
1720 MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX))
1721 return SUPPORTED_Backplane;
1725 static u32 mlxsw_sp_from_ptys_supported_link(u32 ptys_eth_proto)
1730 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1731 if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask)
1732 modes |= mlxsw_sp_port_link_mode[i].supported;
1737 static u32 mlxsw_sp_from_ptys_advert_link(u32 ptys_eth_proto)
1742 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1743 if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask)
1744 modes |= mlxsw_sp_port_link_mode[i].advertised;
1749 static void mlxsw_sp_from_ptys_speed_duplex(bool carrier_ok, u32 ptys_eth_proto,
1750 struct ethtool_cmd *cmd)
1752 u32 speed = SPEED_UNKNOWN;
1753 u8 duplex = DUPLEX_UNKNOWN;
1759 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1760 if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) {
1761 speed = mlxsw_sp_port_link_mode[i].speed;
1762 duplex = DUPLEX_FULL;
1767 ethtool_cmd_speed_set(cmd, speed);
1768 cmd->duplex = duplex;
1771 static u8 mlxsw_sp_port_connector_port(u32 ptys_eth_proto)
1773 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
1774 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
1775 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
1776 MLXSW_REG_PTYS_ETH_SPEED_SGMII))
1779 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
1780 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
1781 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4))
1784 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
1785 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
1786 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
1787 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4))
1793 static int mlxsw_sp_port_get_settings(struct net_device *dev,
1794 struct ethtool_cmd *cmd)
1796 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1797 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1798 char ptys_pl[MLXSW_REG_PTYS_LEN];
1800 u32 eth_proto_admin;
1804 mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
1805 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1807 netdev_err(dev, "Failed to get proto");
1810 mlxsw_reg_ptys_unpack(ptys_pl, ð_proto_cap,
1811 ð_proto_admin, ð_proto_oper);
1813 cmd->supported = mlxsw_sp_from_ptys_supported_port(eth_proto_cap) |
1814 mlxsw_sp_from_ptys_supported_link(eth_proto_cap) |
1815 SUPPORTED_Pause | SUPPORTED_Asym_Pause |
1817 cmd->advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_admin);
1818 mlxsw_sp_from_ptys_speed_duplex(netif_carrier_ok(dev),
1819 eth_proto_oper, cmd);
1821 eth_proto_oper = eth_proto_oper ? eth_proto_oper : eth_proto_cap;
1822 cmd->port = mlxsw_sp_port_connector_port(eth_proto_oper);
1823 cmd->lp_advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_oper);
1825 cmd->transceiver = XCVR_INTERNAL;
1829 static u32 mlxsw_sp_to_ptys_advert_link(u32 advertising)
1834 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1835 if (advertising & mlxsw_sp_port_link_mode[i].advertised)
1836 ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
1841 static u32 mlxsw_sp_to_ptys_speed(u32 speed)
1846 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1847 if (speed == mlxsw_sp_port_link_mode[i].speed)
1848 ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
1853 static u32 mlxsw_sp_to_ptys_upper_speed(u32 upper_speed)
1858 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1859 if (mlxsw_sp_port_link_mode[i].speed <= upper_speed)
1860 ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
1865 static int mlxsw_sp_port_set_settings(struct net_device *dev,
1866 struct ethtool_cmd *cmd)
1868 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1869 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1870 char ptys_pl[MLXSW_REG_PTYS_LEN];
1874 u32 eth_proto_admin;
1877 speed = ethtool_cmd_speed(cmd);
1879 eth_proto_new = cmd->autoneg == AUTONEG_ENABLE ?
1880 mlxsw_sp_to_ptys_advert_link(cmd->advertising) :
1881 mlxsw_sp_to_ptys_speed(speed);
1883 mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
1884 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1886 netdev_err(dev, "Failed to get proto");
1889 mlxsw_reg_ptys_unpack(ptys_pl, ð_proto_cap, ð_proto_admin, NULL);
1891 eth_proto_new = eth_proto_new & eth_proto_cap;
1892 if (!eth_proto_new) {
1893 netdev_err(dev, "Not supported proto admin requested");
1896 if (eth_proto_new == eth_proto_admin)
1899 mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, eth_proto_new);
1900 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1902 netdev_err(dev, "Failed to set proto admin");
1906 if (!netif_running(dev))
1909 err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
1911 netdev_err(dev, "Failed to set admin status");
1915 err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
1917 netdev_err(dev, "Failed to set admin status");
1924 static const struct ethtool_ops mlxsw_sp_port_ethtool_ops = {
1925 .get_drvinfo = mlxsw_sp_port_get_drvinfo,
1926 .get_link = ethtool_op_get_link,
1927 .get_pauseparam = mlxsw_sp_port_get_pauseparam,
1928 .set_pauseparam = mlxsw_sp_port_set_pauseparam,
1929 .get_strings = mlxsw_sp_port_get_strings,
1930 .set_phys_id = mlxsw_sp_port_set_phys_id,
1931 .get_ethtool_stats = mlxsw_sp_port_get_stats,
1932 .get_sset_count = mlxsw_sp_port_get_sset_count,
1933 .get_settings = mlxsw_sp_port_get_settings,
1934 .set_settings = mlxsw_sp_port_set_settings,
1938 mlxsw_sp_port_speed_by_width_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 width)
1940 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1941 u32 upper_speed = MLXSW_SP_PORT_BASE_SPEED * width;
1942 char ptys_pl[MLXSW_REG_PTYS_LEN];
1943 u32 eth_proto_admin;
1945 eth_proto_admin = mlxsw_sp_to_ptys_upper_speed(upper_speed);
1946 mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port,
1948 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1951 int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port,
1952 enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index,
1953 bool dwrr, u8 dwrr_weight)
1955 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1956 char qeec_pl[MLXSW_REG_QEEC_LEN];
1958 mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
1960 mlxsw_reg_qeec_de_set(qeec_pl, true);
1961 mlxsw_reg_qeec_dwrr_set(qeec_pl, dwrr);
1962 mlxsw_reg_qeec_dwrr_weight_set(qeec_pl, dwrr_weight);
1963 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
1966 int mlxsw_sp_port_ets_maxrate_set(struct mlxsw_sp_port *mlxsw_sp_port,
1967 enum mlxsw_reg_qeec_hr hr, u8 index,
1968 u8 next_index, u32 maxrate)
1970 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1971 char qeec_pl[MLXSW_REG_QEEC_LEN];
1973 mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
1975 mlxsw_reg_qeec_mase_set(qeec_pl, true);
1976 mlxsw_reg_qeec_max_shaper_rate_set(qeec_pl, maxrate);
1977 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
1980 int mlxsw_sp_port_prio_tc_set(struct mlxsw_sp_port *mlxsw_sp_port,
1981 u8 switch_prio, u8 tclass)
1983 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1984 char qtct_pl[MLXSW_REG_QTCT_LEN];
1986 mlxsw_reg_qtct_pack(qtct_pl, mlxsw_sp_port->local_port, switch_prio,
1988 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qtct), qtct_pl);
1991 static int mlxsw_sp_port_ets_init(struct mlxsw_sp_port *mlxsw_sp_port)
1995 /* Setup the elements hierarcy, so that each TC is linked to
1996 * one subgroup, which are all member in the same group.
1998 err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
1999 MLXSW_REG_QEEC_HIERARCY_GROUP, 0, 0, false,
2003 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2004 err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
2005 MLXSW_REG_QEEC_HIERARCY_SUBGROUP, i,
2010 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2011 err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
2012 MLXSW_REG_QEEC_HIERARCY_TC, i, i,
2018 /* Make sure the max shaper is disabled in all hierarcies that
2021 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
2022 MLXSW_REG_QEEC_HIERARCY_PORT, 0, 0,
2023 MLXSW_REG_QEEC_MAS_DIS);
2026 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2027 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
2028 MLXSW_REG_QEEC_HIERARCY_SUBGROUP,
2030 MLXSW_REG_QEEC_MAS_DIS);
2034 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2035 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
2036 MLXSW_REG_QEEC_HIERARCY_TC,
2038 MLXSW_REG_QEEC_MAS_DIS);
2043 /* Map all priorities to traffic class 0. */
2044 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2045 err = mlxsw_sp_port_prio_tc_set(mlxsw_sp_port, i, 0);
2053 static int mlxsw_sp_port_pvid_vport_create(struct mlxsw_sp_port *mlxsw_sp_port)
2055 mlxsw_sp_port->pvid = 1;
2057 return mlxsw_sp_port_add_vid(mlxsw_sp_port->dev, 0, 1);
2060 static int mlxsw_sp_port_pvid_vport_destroy(struct mlxsw_sp_port *mlxsw_sp_port)
2062 return mlxsw_sp_port_kill_vid(mlxsw_sp_port->dev, 0, 1);
2065 static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
2066 bool split, u8 module, u8 width, u8 lane)
2068 struct mlxsw_sp_port *mlxsw_sp_port;
2069 struct net_device *dev;
2073 dev = alloc_etherdev(sizeof(struct mlxsw_sp_port));
2076 mlxsw_sp_port = netdev_priv(dev);
2077 mlxsw_sp_port->dev = dev;
2078 mlxsw_sp_port->mlxsw_sp = mlxsw_sp;
2079 mlxsw_sp_port->local_port = local_port;
2080 mlxsw_sp_port->split = split;
2081 mlxsw_sp_port->mapping.module = module;
2082 mlxsw_sp_port->mapping.width = width;
2083 mlxsw_sp_port->mapping.lane = lane;
2084 bytes = DIV_ROUND_UP(VLAN_N_VID, BITS_PER_BYTE);
2085 mlxsw_sp_port->active_vlans = kzalloc(bytes, GFP_KERNEL);
2086 if (!mlxsw_sp_port->active_vlans) {
2088 goto err_port_active_vlans_alloc;
2090 mlxsw_sp_port->untagged_vlans = kzalloc(bytes, GFP_KERNEL);
2091 if (!mlxsw_sp_port->untagged_vlans) {
2093 goto err_port_untagged_vlans_alloc;
2095 INIT_LIST_HEAD(&mlxsw_sp_port->vports_list);
2096 INIT_LIST_HEAD(&mlxsw_sp_port->mall_tc_list);
2098 mlxsw_sp_port->pcpu_stats =
2099 netdev_alloc_pcpu_stats(struct mlxsw_sp_port_pcpu_stats);
2100 if (!mlxsw_sp_port->pcpu_stats) {
2102 goto err_alloc_stats;
2105 dev->netdev_ops = &mlxsw_sp_port_netdev_ops;
2106 dev->ethtool_ops = &mlxsw_sp_port_ethtool_ops;
2108 err = mlxsw_sp_port_dev_addr_init(mlxsw_sp_port);
2110 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unable to init port mac address\n",
2111 mlxsw_sp_port->local_port);
2112 goto err_dev_addr_init;
2115 netif_carrier_off(dev);
2117 dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_LLTX | NETIF_F_SG |
2118 NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC;
2119 dev->hw_features |= NETIF_F_HW_TC;
2121 /* Each packet needs to have a Tx header (metadata) on top all other
2124 dev->hard_header_len += MLXSW_TXHDR_LEN;
2126 err = mlxsw_sp_port_system_port_mapping_set(mlxsw_sp_port);
2128 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set system port mapping\n",
2129 mlxsw_sp_port->local_port);
2130 goto err_port_system_port_mapping_set;
2133 err = mlxsw_sp_port_swid_set(mlxsw_sp_port, 0);
2135 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set SWID\n",
2136 mlxsw_sp_port->local_port);
2137 goto err_port_swid_set;
2140 err = mlxsw_sp_port_speed_by_width_set(mlxsw_sp_port, width);
2142 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to enable speeds\n",
2143 mlxsw_sp_port->local_port);
2144 goto err_port_speed_by_width_set;
2147 err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, ETH_DATA_LEN);
2149 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set MTU\n",
2150 mlxsw_sp_port->local_port);
2151 goto err_port_mtu_set;
2154 err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
2156 goto err_port_admin_status_set;
2158 err = mlxsw_sp_port_buffers_init(mlxsw_sp_port);
2160 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize buffers\n",
2161 mlxsw_sp_port->local_port);
2162 goto err_port_buffers_init;
2165 err = mlxsw_sp_port_ets_init(mlxsw_sp_port);
2167 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize ETS\n",
2168 mlxsw_sp_port->local_port);
2169 goto err_port_ets_init;
2172 /* ETS and buffers must be initialized before DCB. */
2173 err = mlxsw_sp_port_dcb_init(mlxsw_sp_port);
2175 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize DCB\n",
2176 mlxsw_sp_port->local_port);
2177 goto err_port_dcb_init;
2180 err = mlxsw_sp_port_pvid_vport_create(mlxsw_sp_port);
2182 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to create PVID vPort\n",
2183 mlxsw_sp_port->local_port);
2184 goto err_port_pvid_vport_create;
2187 mlxsw_sp_port_switchdev_init(mlxsw_sp_port);
2188 mlxsw_sp->ports[local_port] = mlxsw_sp_port;
2189 err = register_netdev(dev);
2191 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to register netdev\n",
2192 mlxsw_sp_port->local_port);
2193 goto err_register_netdev;
2196 err = mlxsw_core_port_init(mlxsw_sp->core, &mlxsw_sp_port->core_port,
2197 mlxsw_sp_port->local_port, dev,
2198 mlxsw_sp_port->split, module);
2200 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to init core port\n",
2201 mlxsw_sp_port->local_port);
2202 goto err_core_port_init;
2208 unregister_netdev(dev);
2209 err_register_netdev:
2210 mlxsw_sp->ports[local_port] = NULL;
2211 mlxsw_sp_port_switchdev_fini(mlxsw_sp_port);
2212 mlxsw_sp_port_pvid_vport_destroy(mlxsw_sp_port);
2213 err_port_pvid_vport_create:
2214 mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
2217 err_port_buffers_init:
2218 err_port_admin_status_set:
2220 err_port_speed_by_width_set:
2221 mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT);
2223 err_port_system_port_mapping_set:
2225 free_percpu(mlxsw_sp_port->pcpu_stats);
2227 kfree(mlxsw_sp_port->untagged_vlans);
2228 err_port_untagged_vlans_alloc:
2229 kfree(mlxsw_sp_port->active_vlans);
2230 err_port_active_vlans_alloc:
2235 static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
2237 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
2241 mlxsw_core_port_fini(&mlxsw_sp_port->core_port);
2242 unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */
2243 mlxsw_sp->ports[local_port] = NULL;
2244 mlxsw_sp_port_switchdev_fini(mlxsw_sp_port);
2245 mlxsw_sp_port_pvid_vport_destroy(mlxsw_sp_port);
2246 mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
2247 mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT);
2248 mlxsw_sp_port_module_unmap(mlxsw_sp, mlxsw_sp_port->local_port);
2249 free_percpu(mlxsw_sp_port->pcpu_stats);
2250 kfree(mlxsw_sp_port->untagged_vlans);
2251 kfree(mlxsw_sp_port->active_vlans);
2252 WARN_ON_ONCE(!list_empty(&mlxsw_sp_port->vports_list));
2253 free_netdev(mlxsw_sp_port->dev);
2256 static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp)
2260 for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++)
2261 mlxsw_sp_port_remove(mlxsw_sp, i);
2262 kfree(mlxsw_sp->ports);
2265 static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp)
2267 u8 module, width, lane;
2272 alloc_size = sizeof(struct mlxsw_sp_port *) * MLXSW_PORT_MAX_PORTS;
2273 mlxsw_sp->ports = kzalloc(alloc_size, GFP_KERNEL);
2274 if (!mlxsw_sp->ports)
2277 for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++) {
2278 err = mlxsw_sp_port_module_info_get(mlxsw_sp, i, &module,
2281 goto err_port_module_info_get;
2284 mlxsw_sp->port_to_module[i] = module;
2285 err = mlxsw_sp_port_create(mlxsw_sp, i, false, module, width,
2288 goto err_port_create;
2293 err_port_module_info_get:
2294 for (i--; i >= 1; i--)
2295 mlxsw_sp_port_remove(mlxsw_sp, i);
2296 kfree(mlxsw_sp->ports);
2300 static u8 mlxsw_sp_cluster_base_port_get(u8 local_port)
2302 u8 offset = (local_port - 1) % MLXSW_SP_PORTS_PER_CLUSTER_MAX;
2304 return local_port - offset;
2307 static int mlxsw_sp_port_split_create(struct mlxsw_sp *mlxsw_sp, u8 base_port,
2308 u8 module, unsigned int count)
2310 u8 width = MLXSW_PORT_MODULE_MAX_WIDTH / count;
2313 for (i = 0; i < count; i++) {
2314 err = mlxsw_sp_port_module_map(mlxsw_sp, base_port + i, module,
2317 goto err_port_module_map;
2320 for (i = 0; i < count; i++) {
2321 err = __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i, 0);
2323 goto err_port_swid_set;
2326 for (i = 0; i < count; i++) {
2327 err = mlxsw_sp_port_create(mlxsw_sp, base_port + i, true,
2328 module, width, i * width);
2330 goto err_port_create;
2336 for (i--; i >= 0; i--)
2337 mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
2340 for (i--; i >= 0; i--)
2341 __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i,
2342 MLXSW_PORT_SWID_DISABLED_PORT);
2344 err_port_module_map:
2345 for (i--; i >= 0; i--)
2346 mlxsw_sp_port_module_unmap(mlxsw_sp, base_port + i);
2350 static void mlxsw_sp_port_unsplit_create(struct mlxsw_sp *mlxsw_sp,
2351 u8 base_port, unsigned int count)
2353 u8 local_port, module, width = MLXSW_PORT_MODULE_MAX_WIDTH;
2356 /* Split by four means we need to re-create two ports, otherwise
2361 for (i = 0; i < count; i++) {
2362 local_port = base_port + i * 2;
2363 module = mlxsw_sp->port_to_module[local_port];
2365 mlxsw_sp_port_module_map(mlxsw_sp, local_port, module, width,
2369 for (i = 0; i < count; i++)
2370 __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i * 2, 0);
2372 for (i = 0; i < count; i++) {
2373 local_port = base_port + i * 2;
2374 module = mlxsw_sp->port_to_module[local_port];
2376 mlxsw_sp_port_create(mlxsw_sp, local_port, false, module,
2381 static int mlxsw_sp_port_split(struct mlxsw_core *mlxsw_core, u8 local_port,
2384 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2385 struct mlxsw_sp_port *mlxsw_sp_port;
2386 u8 module, cur_width, base_port;
2390 mlxsw_sp_port = mlxsw_sp->ports[local_port];
2391 if (!mlxsw_sp_port) {
2392 dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
2397 module = mlxsw_sp_port->mapping.module;
2398 cur_width = mlxsw_sp_port->mapping.width;
2400 if (count != 2 && count != 4) {
2401 netdev_err(mlxsw_sp_port->dev, "Port can only be split into 2 or 4 ports\n");
2405 if (cur_width != MLXSW_PORT_MODULE_MAX_WIDTH) {
2406 netdev_err(mlxsw_sp_port->dev, "Port cannot be split further\n");
2410 /* Make sure we have enough slave (even) ports for the split. */
2412 base_port = local_port;
2413 if (mlxsw_sp->ports[base_port + 1]) {
2414 netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
2418 base_port = mlxsw_sp_cluster_base_port_get(local_port);
2419 if (mlxsw_sp->ports[base_port + 1] ||
2420 mlxsw_sp->ports[base_port + 3]) {
2421 netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
2426 for (i = 0; i < count; i++)
2427 mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
2429 err = mlxsw_sp_port_split_create(mlxsw_sp, base_port, module, count);
2431 dev_err(mlxsw_sp->bus_info->dev, "Failed to create split ports\n");
2432 goto err_port_split_create;
2437 err_port_split_create:
2438 mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count);
2442 static int mlxsw_sp_port_unsplit(struct mlxsw_core *mlxsw_core, u8 local_port)
2444 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2445 struct mlxsw_sp_port *mlxsw_sp_port;
2446 u8 cur_width, base_port;
2450 mlxsw_sp_port = mlxsw_sp->ports[local_port];
2451 if (!mlxsw_sp_port) {
2452 dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
2457 if (!mlxsw_sp_port->split) {
2458 netdev_err(mlxsw_sp_port->dev, "Port wasn't split\n");
2462 cur_width = mlxsw_sp_port->mapping.width;
2463 count = cur_width == 1 ? 4 : 2;
2465 base_port = mlxsw_sp_cluster_base_port_get(local_port);
2467 /* Determine which ports to remove. */
2468 if (count == 2 && local_port >= base_port + 2)
2469 base_port = base_port + 2;
2471 for (i = 0; i < count; i++)
2472 mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
2474 mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count);
2479 static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg,
2480 char *pude_pl, void *priv)
2482 struct mlxsw_sp *mlxsw_sp = priv;
2483 struct mlxsw_sp_port *mlxsw_sp_port;
2484 enum mlxsw_reg_pude_oper_status status;
2487 local_port = mlxsw_reg_pude_local_port_get(pude_pl);
2488 mlxsw_sp_port = mlxsw_sp->ports[local_port];
2492 status = mlxsw_reg_pude_oper_status_get(pude_pl);
2493 if (status == MLXSW_PORT_OPER_STATUS_UP) {
2494 netdev_info(mlxsw_sp_port->dev, "link up\n");
2495 netif_carrier_on(mlxsw_sp_port->dev);
2497 netdev_info(mlxsw_sp_port->dev, "link down\n");
2498 netif_carrier_off(mlxsw_sp_port->dev);
2502 static struct mlxsw_event_listener mlxsw_sp_pude_event = {
2503 .func = mlxsw_sp_pude_event_func,
2504 .trap_id = MLXSW_TRAP_ID_PUDE,
2507 static int mlxsw_sp_event_register(struct mlxsw_sp *mlxsw_sp,
2508 enum mlxsw_event_trap_id trap_id)
2510 struct mlxsw_event_listener *el;
2511 char hpkt_pl[MLXSW_REG_HPKT_LEN];
2515 case MLXSW_TRAP_ID_PUDE:
2516 el = &mlxsw_sp_pude_event;
2519 err = mlxsw_core_event_listener_register(mlxsw_sp->core, el, mlxsw_sp);
2523 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD, trap_id);
2524 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2526 goto err_event_trap_set;
2531 mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp);
2535 static void mlxsw_sp_event_unregister(struct mlxsw_sp *mlxsw_sp,
2536 enum mlxsw_event_trap_id trap_id)
2538 struct mlxsw_event_listener *el;
2541 case MLXSW_TRAP_ID_PUDE:
2542 el = &mlxsw_sp_pude_event;
2545 mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp);
2548 static void mlxsw_sp_rx_listener_func(struct sk_buff *skb, u8 local_port,
2551 struct mlxsw_sp *mlxsw_sp = priv;
2552 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
2553 struct mlxsw_sp_port_pcpu_stats *pcpu_stats;
2555 if (unlikely(!mlxsw_sp_port)) {
2556 dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: skb received for non-existent port\n",
2561 skb->dev = mlxsw_sp_port->dev;
2563 pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
2564 u64_stats_update_begin(&pcpu_stats->syncp);
2565 pcpu_stats->rx_packets++;
2566 pcpu_stats->rx_bytes += skb->len;
2567 u64_stats_update_end(&pcpu_stats->syncp);
2569 skb->protocol = eth_type_trans(skb, skb->dev);
2570 netif_receive_skb(skb);
2573 static const struct mlxsw_rx_listener mlxsw_sp_rx_listener[] = {
2575 .func = mlxsw_sp_rx_listener_func,
2576 .local_port = MLXSW_PORT_DONT_CARE,
2577 .trap_id = MLXSW_TRAP_ID_FDB_MC,
2579 /* Traps for specific L2 packet types, not trapped as FDB MC */
2581 .func = mlxsw_sp_rx_listener_func,
2582 .local_port = MLXSW_PORT_DONT_CARE,
2583 .trap_id = MLXSW_TRAP_ID_STP,
2586 .func = mlxsw_sp_rx_listener_func,
2587 .local_port = MLXSW_PORT_DONT_CARE,
2588 .trap_id = MLXSW_TRAP_ID_LACP,
2591 .func = mlxsw_sp_rx_listener_func,
2592 .local_port = MLXSW_PORT_DONT_CARE,
2593 .trap_id = MLXSW_TRAP_ID_EAPOL,
2596 .func = mlxsw_sp_rx_listener_func,
2597 .local_port = MLXSW_PORT_DONT_CARE,
2598 .trap_id = MLXSW_TRAP_ID_LLDP,
2601 .func = mlxsw_sp_rx_listener_func,
2602 .local_port = MLXSW_PORT_DONT_CARE,
2603 .trap_id = MLXSW_TRAP_ID_MMRP,
2606 .func = mlxsw_sp_rx_listener_func,
2607 .local_port = MLXSW_PORT_DONT_CARE,
2608 .trap_id = MLXSW_TRAP_ID_MVRP,
2611 .func = mlxsw_sp_rx_listener_func,
2612 .local_port = MLXSW_PORT_DONT_CARE,
2613 .trap_id = MLXSW_TRAP_ID_RPVST,
2616 .func = mlxsw_sp_rx_listener_func,
2617 .local_port = MLXSW_PORT_DONT_CARE,
2618 .trap_id = MLXSW_TRAP_ID_DHCP,
2621 .func = mlxsw_sp_rx_listener_func,
2622 .local_port = MLXSW_PORT_DONT_CARE,
2623 .trap_id = MLXSW_TRAP_ID_IGMP_QUERY,
2626 .func = mlxsw_sp_rx_listener_func,
2627 .local_port = MLXSW_PORT_DONT_CARE,
2628 .trap_id = MLXSW_TRAP_ID_IGMP_V1_REPORT,
2631 .func = mlxsw_sp_rx_listener_func,
2632 .local_port = MLXSW_PORT_DONT_CARE,
2633 .trap_id = MLXSW_TRAP_ID_IGMP_V2_REPORT,
2636 .func = mlxsw_sp_rx_listener_func,
2637 .local_port = MLXSW_PORT_DONT_CARE,
2638 .trap_id = MLXSW_TRAP_ID_IGMP_V2_LEAVE,
2641 .func = mlxsw_sp_rx_listener_func,
2642 .local_port = MLXSW_PORT_DONT_CARE,
2643 .trap_id = MLXSW_TRAP_ID_IGMP_V3_REPORT,
2646 .func = mlxsw_sp_rx_listener_func,
2647 .local_port = MLXSW_PORT_DONT_CARE,
2648 .trap_id = MLXSW_TRAP_ID_ARPBC,
2651 .func = mlxsw_sp_rx_listener_func,
2652 .local_port = MLXSW_PORT_DONT_CARE,
2653 .trap_id = MLXSW_TRAP_ID_ARPUC,
2656 .func = mlxsw_sp_rx_listener_func,
2657 .local_port = MLXSW_PORT_DONT_CARE,
2658 .trap_id = MLXSW_TRAP_ID_MTUERROR,
2661 .func = mlxsw_sp_rx_listener_func,
2662 .local_port = MLXSW_PORT_DONT_CARE,
2663 .trap_id = MLXSW_TRAP_ID_TTLERROR,
2666 .func = mlxsw_sp_rx_listener_func,
2667 .local_port = MLXSW_PORT_DONT_CARE,
2668 .trap_id = MLXSW_TRAP_ID_LBERROR,
2671 .func = mlxsw_sp_rx_listener_func,
2672 .local_port = MLXSW_PORT_DONT_CARE,
2673 .trap_id = MLXSW_TRAP_ID_OSPF,
2676 .func = mlxsw_sp_rx_listener_func,
2677 .local_port = MLXSW_PORT_DONT_CARE,
2678 .trap_id = MLXSW_TRAP_ID_IP2ME,
2681 .func = mlxsw_sp_rx_listener_func,
2682 .local_port = MLXSW_PORT_DONT_CARE,
2683 .trap_id = MLXSW_TRAP_ID_RTR_INGRESS0,
2686 .func = mlxsw_sp_rx_listener_func,
2687 .local_port = MLXSW_PORT_DONT_CARE,
2688 .trap_id = MLXSW_TRAP_ID_HOST_MISS_IPV4,
2692 static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
2694 char htgt_pl[MLXSW_REG_HTGT_LEN];
2695 char hpkt_pl[MLXSW_REG_HPKT_LEN];
2699 mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_RX);
2700 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl);
2704 mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_CTRL);
2705 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl);
2709 for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) {
2710 err = mlxsw_core_rx_listener_register(mlxsw_sp->core,
2711 &mlxsw_sp_rx_listener[i],
2714 goto err_rx_listener_register;
2716 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_TRAP_TO_CPU,
2717 mlxsw_sp_rx_listener[i].trap_id);
2718 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2720 goto err_rx_trap_set;
2725 mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
2726 &mlxsw_sp_rx_listener[i],
2728 err_rx_listener_register:
2729 for (i--; i >= 0; i--) {
2730 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_DISCARD,
2731 mlxsw_sp_rx_listener[i].trap_id);
2732 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2734 mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
2735 &mlxsw_sp_rx_listener[i],
2741 static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp)
2743 char hpkt_pl[MLXSW_REG_HPKT_LEN];
2746 for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) {
2747 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_DISCARD,
2748 mlxsw_sp_rx_listener[i].trap_id);
2749 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2751 mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
2752 &mlxsw_sp_rx_listener[i],
2757 static int __mlxsw_sp_flood_init(struct mlxsw_core *mlxsw_core,
2758 enum mlxsw_reg_sfgc_type type,
2759 enum mlxsw_reg_sfgc_bridge_type bridge_type)
2761 enum mlxsw_flood_table_type table_type;
2762 enum mlxsw_sp_flood_table flood_table;
2763 char sfgc_pl[MLXSW_REG_SFGC_LEN];
2765 if (bridge_type == MLXSW_REG_SFGC_BRIDGE_TYPE_VFID)
2766 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID;
2768 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST;
2770 if (type == MLXSW_REG_SFGC_TYPE_UNKNOWN_UNICAST)
2771 flood_table = MLXSW_SP_FLOOD_TABLE_UC;
2773 flood_table = MLXSW_SP_FLOOD_TABLE_BM;
2775 mlxsw_reg_sfgc_pack(sfgc_pl, type, bridge_type, table_type,
2777 return mlxsw_reg_write(mlxsw_core, MLXSW_REG(sfgc), sfgc_pl);
2780 static int mlxsw_sp_flood_init(struct mlxsw_sp *mlxsw_sp)
2784 for (type = 0; type < MLXSW_REG_SFGC_TYPE_MAX; type++) {
2785 if (type == MLXSW_REG_SFGC_TYPE_RESERVED)
2788 err = __mlxsw_sp_flood_init(mlxsw_sp->core, type,
2789 MLXSW_REG_SFGC_BRIDGE_TYPE_VFID);
2793 err = __mlxsw_sp_flood_init(mlxsw_sp->core, type,
2794 MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID);
2802 static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp)
2804 char slcr_pl[MLXSW_REG_SLCR_LEN];
2806 mlxsw_reg_slcr_pack(slcr_pl, MLXSW_REG_SLCR_LAG_HASH_SMAC |
2807 MLXSW_REG_SLCR_LAG_HASH_DMAC |
2808 MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE |
2809 MLXSW_REG_SLCR_LAG_HASH_VLANID |
2810 MLXSW_REG_SLCR_LAG_HASH_SIP |
2811 MLXSW_REG_SLCR_LAG_HASH_DIP |
2812 MLXSW_REG_SLCR_LAG_HASH_SPORT |
2813 MLXSW_REG_SLCR_LAG_HASH_DPORT |
2814 MLXSW_REG_SLCR_LAG_HASH_IPPROTO);
2815 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcr), slcr_pl);
2818 static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core,
2819 const struct mlxsw_bus_info *mlxsw_bus_info)
2821 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2824 mlxsw_sp->core = mlxsw_core;
2825 mlxsw_sp->bus_info = mlxsw_bus_info;
2826 INIT_LIST_HEAD(&mlxsw_sp->fids);
2827 INIT_LIST_HEAD(&mlxsw_sp->vfids.list);
2828 INIT_LIST_HEAD(&mlxsw_sp->br_mids.list);
2830 err = mlxsw_sp_base_mac_get(mlxsw_sp);
2832 dev_err(mlxsw_sp->bus_info->dev, "Failed to get base mac\n");
2836 err = mlxsw_sp_event_register(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
2838 dev_err(mlxsw_sp->bus_info->dev, "Failed to register for PUDE events\n");
2842 err = mlxsw_sp_traps_init(mlxsw_sp);
2844 dev_err(mlxsw_sp->bus_info->dev, "Failed to set traps for RX\n");
2845 goto err_rx_listener_register;
2848 err = mlxsw_sp_flood_init(mlxsw_sp);
2850 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize flood tables\n");
2851 goto err_flood_init;
2854 err = mlxsw_sp_buffers_init(mlxsw_sp);
2856 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize buffers\n");
2857 goto err_buffers_init;
2860 err = mlxsw_sp_lag_init(mlxsw_sp);
2862 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize LAG\n");
2866 err = mlxsw_sp_switchdev_init(mlxsw_sp);
2868 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize switchdev\n");
2869 goto err_switchdev_init;
2872 err = mlxsw_sp_router_init(mlxsw_sp);
2874 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize router\n");
2875 goto err_router_init;
2878 err = mlxsw_sp_span_init(mlxsw_sp);
2880 dev_err(mlxsw_sp->bus_info->dev, "Failed to init span system\n");
2884 err = mlxsw_sp_ports_create(mlxsw_sp);
2886 dev_err(mlxsw_sp->bus_info->dev, "Failed to create ports\n");
2887 goto err_ports_create;
2893 mlxsw_sp_span_fini(mlxsw_sp);
2895 mlxsw_sp_router_fini(mlxsw_sp);
2897 mlxsw_sp_switchdev_fini(mlxsw_sp);
2900 mlxsw_sp_buffers_fini(mlxsw_sp);
2903 mlxsw_sp_traps_fini(mlxsw_sp);
2904 err_rx_listener_register:
2905 mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
2909 static void mlxsw_sp_fini(struct mlxsw_core *mlxsw_core)
2911 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2914 mlxsw_sp_ports_remove(mlxsw_sp);
2915 mlxsw_sp_span_fini(mlxsw_sp);
2916 mlxsw_sp_router_fini(mlxsw_sp);
2917 mlxsw_sp_switchdev_fini(mlxsw_sp);
2918 mlxsw_sp_buffers_fini(mlxsw_sp);
2919 mlxsw_sp_traps_fini(mlxsw_sp);
2920 mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
2921 WARN_ON(!list_empty(&mlxsw_sp->vfids.list));
2922 WARN_ON(!list_empty(&mlxsw_sp->fids));
2923 for (i = 0; i < MLXSW_SP_RIF_MAX; i++)
2924 WARN_ON_ONCE(mlxsw_sp->rifs[i]);
2927 static struct mlxsw_config_profile mlxsw_sp_config_profile = {
2928 .used_max_vepa_channels = 1,
2929 .max_vepa_channels = 0,
2931 .max_lag = MLXSW_SP_LAG_MAX,
2932 .used_max_port_per_lag = 1,
2933 .max_port_per_lag = MLXSW_SP_PORT_PER_LAG_MAX,
2935 .max_mid = MLXSW_SP_MID_MAX,
2938 .used_max_system_port = 1,
2939 .max_system_port = 64,
2940 .used_max_vlan_groups = 1,
2941 .max_vlan_groups = 127,
2942 .used_max_regions = 1,
2944 .used_flood_tables = 1,
2945 .used_flood_mode = 1,
2947 .max_fid_offset_flood_tables = 2,
2948 .fid_offset_flood_table_size = VLAN_N_VID - 1,
2949 .max_fid_flood_tables = 2,
2950 .fid_flood_table_size = MLXSW_SP_VFID_MAX,
2951 .used_max_ib_mc = 1,
2955 .used_kvd_sizes = 1,
2956 .kvd_linear_size = MLXSW_SP_KVD_LINEAR_SIZE,
2957 .kvd_hash_single_size = MLXSW_SP_KVD_HASH_SINGLE_SIZE,
2958 .kvd_hash_double_size = MLXSW_SP_KVD_HASH_DOUBLE_SIZE,
2962 .type = MLXSW_PORT_SWID_TYPE_ETH,
2965 .resource_query_enable = 1,
2968 static struct mlxsw_driver mlxsw_sp_driver = {
2969 .kind = MLXSW_DEVICE_KIND_SPECTRUM,
2970 .owner = THIS_MODULE,
2971 .priv_size = sizeof(struct mlxsw_sp),
2972 .init = mlxsw_sp_init,
2973 .fini = mlxsw_sp_fini,
2974 .port_split = mlxsw_sp_port_split,
2975 .port_unsplit = mlxsw_sp_port_unsplit,
2976 .sb_pool_get = mlxsw_sp_sb_pool_get,
2977 .sb_pool_set = mlxsw_sp_sb_pool_set,
2978 .sb_port_pool_get = mlxsw_sp_sb_port_pool_get,
2979 .sb_port_pool_set = mlxsw_sp_sb_port_pool_set,
2980 .sb_tc_pool_bind_get = mlxsw_sp_sb_tc_pool_bind_get,
2981 .sb_tc_pool_bind_set = mlxsw_sp_sb_tc_pool_bind_set,
2982 .sb_occ_snapshot = mlxsw_sp_sb_occ_snapshot,
2983 .sb_occ_max_clear = mlxsw_sp_sb_occ_max_clear,
2984 .sb_occ_port_pool_get = mlxsw_sp_sb_occ_port_pool_get,
2985 .sb_occ_tc_port_bind_get = mlxsw_sp_sb_occ_tc_port_bind_get,
2986 .txhdr_construct = mlxsw_sp_txhdr_construct,
2987 .txhdr_len = MLXSW_TXHDR_LEN,
2988 .profile = &mlxsw_sp_config_profile,
2991 static bool mlxsw_sp_port_dev_check(const struct net_device *dev)
2993 return dev->netdev_ops == &mlxsw_sp_port_netdev_ops;
2996 static struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find(struct net_device *dev)
2998 struct net_device *lower_dev;
2999 struct list_head *iter;
3001 if (mlxsw_sp_port_dev_check(dev))
3002 return netdev_priv(dev);
3004 netdev_for_each_all_lower_dev(dev, lower_dev, iter) {
3005 if (mlxsw_sp_port_dev_check(lower_dev))
3006 return netdev_priv(lower_dev);
3011 static struct mlxsw_sp *mlxsw_sp_lower_get(struct net_device *dev)
3013 struct mlxsw_sp_port *mlxsw_sp_port;
3015 mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(dev);
3016 return mlxsw_sp_port ? mlxsw_sp_port->mlxsw_sp : NULL;
3019 static struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find_rcu(struct net_device *dev)
3021 struct net_device *lower_dev;
3022 struct list_head *iter;
3024 if (mlxsw_sp_port_dev_check(dev))
3025 return netdev_priv(dev);
3027 netdev_for_each_all_lower_dev_rcu(dev, lower_dev, iter) {
3028 if (mlxsw_sp_port_dev_check(lower_dev))
3029 return netdev_priv(lower_dev);
3034 struct mlxsw_sp_port *mlxsw_sp_port_lower_dev_hold(struct net_device *dev)
3036 struct mlxsw_sp_port *mlxsw_sp_port;
3039 mlxsw_sp_port = mlxsw_sp_port_dev_lower_find_rcu(dev);
3041 dev_hold(mlxsw_sp_port->dev);
3043 return mlxsw_sp_port;
3046 void mlxsw_sp_port_dev_put(struct mlxsw_sp_port *mlxsw_sp_port)
3048 dev_put(mlxsw_sp_port->dev);
3051 static bool mlxsw_sp_rif_should_config(struct mlxsw_sp_rif *r,
3052 unsigned long event)
3061 if (r && --r->ref_count == 0)
3063 /* It is possible we already removed the RIF ourselves
3064 * if it was assigned to a netdev that is now a bridge
3073 static int mlxsw_sp_avail_rif_get(struct mlxsw_sp *mlxsw_sp)
3077 for (i = 0; i < MLXSW_SP_RIF_MAX; i++)
3078 if (!mlxsw_sp->rifs[i])
3081 return MLXSW_SP_RIF_MAX;
3084 static void mlxsw_sp_vport_rif_sp_attr_get(struct mlxsw_sp_port *mlxsw_sp_vport,
3085 bool *p_lagged, u16 *p_system_port)
3087 u8 local_port = mlxsw_sp_vport->local_port;
3089 *p_lagged = mlxsw_sp_vport->lagged;
3090 *p_system_port = *p_lagged ? mlxsw_sp_vport->lag_id : local_port;
3093 static int mlxsw_sp_vport_rif_sp_op(struct mlxsw_sp_port *mlxsw_sp_vport,
3094 struct net_device *l3_dev, u16 rif,
3097 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3098 bool lagged = mlxsw_sp_vport->lagged;
3099 char ritr_pl[MLXSW_REG_RITR_LEN];
3102 mlxsw_reg_ritr_pack(ritr_pl, create, MLXSW_REG_RITR_SP_IF, rif,
3103 l3_dev->mtu, l3_dev->dev_addr);
3105 mlxsw_sp_vport_rif_sp_attr_get(mlxsw_sp_vport, &lagged, &system_port);
3106 mlxsw_reg_ritr_sp_if_pack(ritr_pl, lagged, system_port,
3107 mlxsw_sp_vport_vid_get(mlxsw_sp_vport));
3109 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
3112 static void mlxsw_sp_vport_rif_sp_leave(struct mlxsw_sp_port *mlxsw_sp_vport);
3114 static struct mlxsw_sp_fid *
3115 mlxsw_sp_rfid_alloc(u16 fid, struct net_device *l3_dev)
3117 struct mlxsw_sp_fid *f;
3119 f = kzalloc(sizeof(*f), GFP_KERNEL);
3123 f->leave = mlxsw_sp_vport_rif_sp_leave;
3131 static struct mlxsw_sp_rif *
3132 mlxsw_sp_rif_alloc(u16 rif, struct net_device *l3_dev, struct mlxsw_sp_fid *f)
3134 struct mlxsw_sp_rif *r;
3136 r = kzalloc(sizeof(*r), GFP_KERNEL);
3140 ether_addr_copy(r->addr, l3_dev->dev_addr);
3141 r->mtu = l3_dev->mtu;
3150 static struct mlxsw_sp_rif *
3151 mlxsw_sp_vport_rif_sp_create(struct mlxsw_sp_port *mlxsw_sp_vport,
3152 struct net_device *l3_dev)
3154 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3155 struct mlxsw_sp_fid *f;
3156 struct mlxsw_sp_rif *r;
3160 rif = mlxsw_sp_avail_rif_get(mlxsw_sp);
3161 if (rif == MLXSW_SP_RIF_MAX)
3162 return ERR_PTR(-ERANGE);
3164 err = mlxsw_sp_vport_rif_sp_op(mlxsw_sp_vport, l3_dev, rif, true);
3166 return ERR_PTR(err);
3168 fid = mlxsw_sp_rif_sp_to_fid(rif);
3169 err = mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, fid, true);
3171 goto err_rif_fdb_op;
3173 f = mlxsw_sp_rfid_alloc(fid, l3_dev);
3176 goto err_rfid_alloc;
3179 r = mlxsw_sp_rif_alloc(rif, l3_dev, f);
3186 mlxsw_sp->rifs[rif] = r;
3193 mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, fid, false);
3195 mlxsw_sp_vport_rif_sp_op(mlxsw_sp_vport, l3_dev, rif, false);
3196 return ERR_PTR(err);
3199 static void mlxsw_sp_vport_rif_sp_destroy(struct mlxsw_sp_port *mlxsw_sp_vport,
3200 struct mlxsw_sp_rif *r)
3202 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3203 struct net_device *l3_dev = r->dev;
3204 struct mlxsw_sp_fid *f = r->f;
3208 mlxsw_sp->rifs[rif] = NULL;
3215 mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, fid, false);
3217 mlxsw_sp_vport_rif_sp_op(mlxsw_sp_vport, l3_dev, rif, false);
3220 static int mlxsw_sp_vport_rif_sp_join(struct mlxsw_sp_port *mlxsw_sp_vport,
3221 struct net_device *l3_dev)
3223 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3224 struct mlxsw_sp_rif *r;
3226 r = mlxsw_sp_rif_find_by_dev(mlxsw_sp, l3_dev);
3228 r = mlxsw_sp_vport_rif_sp_create(mlxsw_sp_vport, l3_dev);
3233 mlxsw_sp_vport_fid_set(mlxsw_sp_vport, r->f);
3236 netdev_dbg(mlxsw_sp_vport->dev, "Joined FID=%d\n", r->f->fid);
3241 static void mlxsw_sp_vport_rif_sp_leave(struct mlxsw_sp_port *mlxsw_sp_vport)
3243 struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
3245 netdev_dbg(mlxsw_sp_vport->dev, "Left FID=%d\n", f->fid);
3247 mlxsw_sp_vport_fid_set(mlxsw_sp_vport, NULL);
3248 if (--f->ref_count == 0)
3249 mlxsw_sp_vport_rif_sp_destroy(mlxsw_sp_vport, f->r);
3252 static int mlxsw_sp_inetaddr_vport_event(struct net_device *l3_dev,
3253 struct net_device *port_dev,
3254 unsigned long event, u16 vid)
3256 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(port_dev);
3257 struct mlxsw_sp_port *mlxsw_sp_vport;
3259 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
3260 if (WARN_ON(!mlxsw_sp_vport))
3265 return mlxsw_sp_vport_rif_sp_join(mlxsw_sp_vport, l3_dev);
3267 mlxsw_sp_vport_rif_sp_leave(mlxsw_sp_vport);
3274 static int mlxsw_sp_inetaddr_port_event(struct net_device *port_dev,
3275 unsigned long event)
3277 if (netif_is_bridge_port(port_dev) || netif_is_lag_port(port_dev))
3280 return mlxsw_sp_inetaddr_vport_event(port_dev, port_dev, event, 1);
3283 static int __mlxsw_sp_inetaddr_lag_event(struct net_device *l3_dev,
3284 struct net_device *lag_dev,
3285 unsigned long event, u16 vid)
3287 struct net_device *port_dev;
3288 struct list_head *iter;
3291 netdev_for_each_lower_dev(lag_dev, port_dev, iter) {
3292 if (mlxsw_sp_port_dev_check(port_dev)) {
3293 err = mlxsw_sp_inetaddr_vport_event(l3_dev, port_dev,
3303 static int mlxsw_sp_inetaddr_lag_event(struct net_device *lag_dev,
3304 unsigned long event)
3306 if (netif_is_bridge_port(lag_dev))
3309 return __mlxsw_sp_inetaddr_lag_event(lag_dev, lag_dev, event, 1);
3312 static struct mlxsw_sp_fid *mlxsw_sp_bridge_fid_get(struct mlxsw_sp *mlxsw_sp,
3313 struct net_device *l3_dev)
3317 if (is_vlan_dev(l3_dev))
3318 fid = vlan_dev_vlan_id(l3_dev);
3319 else if (mlxsw_sp->master_bridge.dev == l3_dev)
3322 return mlxsw_sp_vfid_find(mlxsw_sp, l3_dev);
3324 return mlxsw_sp_fid_find(mlxsw_sp, fid);
3327 static enum mlxsw_reg_ritr_if_type mlxsw_sp_rif_type_get(u16 fid)
3329 if (mlxsw_sp_fid_is_vfid(fid))
3330 return MLXSW_REG_RITR_FID_IF;
3332 return MLXSW_REG_RITR_VLAN_IF;
3335 static int mlxsw_sp_rif_bridge_op(struct mlxsw_sp *mlxsw_sp,
3336 struct net_device *l3_dev,
3340 enum mlxsw_reg_ritr_if_type rif_type;
3341 char ritr_pl[MLXSW_REG_RITR_LEN];
3343 rif_type = mlxsw_sp_rif_type_get(fid);
3344 mlxsw_reg_ritr_pack(ritr_pl, create, rif_type, rif, l3_dev->mtu,
3346 mlxsw_reg_ritr_fid_set(ritr_pl, rif_type, fid);
3348 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
3351 static int mlxsw_sp_rif_bridge_create(struct mlxsw_sp *mlxsw_sp,
3352 struct net_device *l3_dev,
3353 struct mlxsw_sp_fid *f)
3355 struct mlxsw_sp_rif *r;
3359 rif = mlxsw_sp_avail_rif_get(mlxsw_sp);
3360 if (rif == MLXSW_SP_RIF_MAX)
3363 err = mlxsw_sp_rif_bridge_op(mlxsw_sp, l3_dev, f->fid, rif, true);
3367 err = mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, f->fid, true);
3369 goto err_rif_fdb_op;
3371 r = mlxsw_sp_rif_alloc(rif, l3_dev, f);
3378 mlxsw_sp->rifs[rif] = r;
3380 netdev_dbg(l3_dev, "RIF=%d created\n", rif);
3385 mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, f->fid, false);
3387 mlxsw_sp_rif_bridge_op(mlxsw_sp, l3_dev, f->fid, rif, false);
3391 void mlxsw_sp_rif_bridge_destroy(struct mlxsw_sp *mlxsw_sp,
3392 struct mlxsw_sp_rif *r)
3394 struct net_device *l3_dev = r->dev;
3395 struct mlxsw_sp_fid *f = r->f;
3398 mlxsw_sp->rifs[rif] = NULL;
3403 mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, f->fid, false);
3405 mlxsw_sp_rif_bridge_op(mlxsw_sp, l3_dev, f->fid, rif, false);
3407 netdev_dbg(l3_dev, "RIF=%d destroyed\n", rif);
3410 static int mlxsw_sp_inetaddr_bridge_event(struct net_device *l3_dev,
3411 struct net_device *br_dev,
3412 unsigned long event)
3414 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(l3_dev);
3415 struct mlxsw_sp_fid *f;
3417 /* FID can either be an actual FID if the L3 device is the
3418 * VLAN-aware bridge or a VLAN device on top. Otherwise, the
3419 * L3 device is a VLAN-unaware bridge and we get a vFID.
3421 f = mlxsw_sp_bridge_fid_get(mlxsw_sp, l3_dev);
3427 return mlxsw_sp_rif_bridge_create(mlxsw_sp, l3_dev, f);
3429 mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
3436 static int mlxsw_sp_inetaddr_vlan_event(struct net_device *vlan_dev,
3437 unsigned long event)
3439 struct net_device *real_dev = vlan_dev_real_dev(vlan_dev);
3440 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(vlan_dev);
3441 u16 vid = vlan_dev_vlan_id(vlan_dev);
3443 if (mlxsw_sp_port_dev_check(real_dev))
3444 return mlxsw_sp_inetaddr_vport_event(vlan_dev, real_dev, event,
3446 else if (netif_is_lag_master(real_dev))
3447 return __mlxsw_sp_inetaddr_lag_event(vlan_dev, real_dev, event,
3449 else if (netif_is_bridge_master(real_dev) &&
3450 mlxsw_sp->master_bridge.dev == real_dev)
3451 return mlxsw_sp_inetaddr_bridge_event(vlan_dev, real_dev,
3457 static int mlxsw_sp_inetaddr_event(struct notifier_block *unused,
3458 unsigned long event, void *ptr)
3460 struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
3461 struct net_device *dev = ifa->ifa_dev->dev;
3462 struct mlxsw_sp *mlxsw_sp;
3463 struct mlxsw_sp_rif *r;
3466 mlxsw_sp = mlxsw_sp_lower_get(dev);
3470 r = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev);
3471 if (!mlxsw_sp_rif_should_config(r, event))
3474 if (mlxsw_sp_port_dev_check(dev))
3475 err = mlxsw_sp_inetaddr_port_event(dev, event);
3476 else if (netif_is_lag_master(dev))
3477 err = mlxsw_sp_inetaddr_lag_event(dev, event);
3478 else if (netif_is_bridge_master(dev))
3479 err = mlxsw_sp_inetaddr_bridge_event(dev, dev, event);
3480 else if (is_vlan_dev(dev))
3481 err = mlxsw_sp_inetaddr_vlan_event(dev, event);
3484 return notifier_from_errno(err);
3487 static int mlxsw_sp_rif_edit(struct mlxsw_sp *mlxsw_sp, u16 rif,
3488 const char *mac, int mtu)
3490 char ritr_pl[MLXSW_REG_RITR_LEN];
3493 mlxsw_reg_ritr_rif_pack(ritr_pl, rif);
3494 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
3498 mlxsw_reg_ritr_mtu_set(ritr_pl, mtu);
3499 mlxsw_reg_ritr_if_mac_memcpy_to(ritr_pl, mac);
3500 mlxsw_reg_ritr_op_set(ritr_pl, MLXSW_REG_RITR_RIF_CREATE);
3501 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
3504 static int mlxsw_sp_netdevice_router_port_event(struct net_device *dev)
3506 struct mlxsw_sp *mlxsw_sp;
3507 struct mlxsw_sp_rif *r;
3510 mlxsw_sp = mlxsw_sp_lower_get(dev);
3514 r = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev);
3518 err = mlxsw_sp_rif_fdb_op(mlxsw_sp, r->addr, r->f->fid, false);
3522 err = mlxsw_sp_rif_edit(mlxsw_sp, r->rif, dev->dev_addr, dev->mtu);
3526 err = mlxsw_sp_rif_fdb_op(mlxsw_sp, dev->dev_addr, r->f->fid, true);
3528 goto err_rif_fdb_op;
3530 ether_addr_copy(r->addr, dev->dev_addr);
3533 netdev_dbg(dev, "Updated RIF=%d\n", r->rif);
3538 mlxsw_sp_rif_edit(mlxsw_sp, r->rif, r->addr, r->mtu);
3540 mlxsw_sp_rif_fdb_op(mlxsw_sp, r->addr, r->f->fid, true);
3544 static bool mlxsw_sp_lag_port_fid_member(struct mlxsw_sp_port *lag_port,
3547 if (mlxsw_sp_fid_is_vfid(fid))
3548 return mlxsw_sp_port_vport_find_by_fid(lag_port, fid);
3550 return test_bit(fid, lag_port->active_vlans);
3553 static bool mlxsw_sp_port_fdb_should_flush(struct mlxsw_sp_port *mlxsw_sp_port,
3556 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3557 u8 local_port = mlxsw_sp_port->local_port;
3558 u16 lag_id = mlxsw_sp_port->lag_id;
3561 if (!mlxsw_sp_port->lagged)
3564 for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) {
3565 struct mlxsw_sp_port *lag_port;
3567 lag_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i);
3568 if (!lag_port || lag_port->local_port == local_port)
3570 if (mlxsw_sp_lag_port_fid_member(lag_port, fid))
3578 mlxsw_sp_port_fdb_flush_by_port_fid(const struct mlxsw_sp_port *mlxsw_sp_port,
3581 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3582 char sfdf_pl[MLXSW_REG_SFDF_LEN];
3584 mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_PORT_AND_FID);
3585 mlxsw_reg_sfdf_fid_set(sfdf_pl, fid);
3586 mlxsw_reg_sfdf_port_fid_system_port_set(sfdf_pl,
3587 mlxsw_sp_port->local_port);
3589 netdev_dbg(mlxsw_sp_port->dev, "FDB flushed using Port=%d, FID=%d\n",
3590 mlxsw_sp_port->local_port, fid);
3592 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
3596 mlxsw_sp_port_fdb_flush_by_lag_id_fid(const struct mlxsw_sp_port *mlxsw_sp_port,
3599 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3600 char sfdf_pl[MLXSW_REG_SFDF_LEN];
3602 mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_LAG_AND_FID);
3603 mlxsw_reg_sfdf_fid_set(sfdf_pl, fid);
3604 mlxsw_reg_sfdf_lag_fid_lag_id_set(sfdf_pl, mlxsw_sp_port->lag_id);
3606 netdev_dbg(mlxsw_sp_port->dev, "FDB flushed using LAG ID=%d, FID=%d\n",
3607 mlxsw_sp_port->lag_id, fid);
3609 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
3612 int mlxsw_sp_port_fdb_flush(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid)
3614 if (!mlxsw_sp_port_fdb_should_flush(mlxsw_sp_port, fid))
3617 if (mlxsw_sp_port->lagged)
3618 return mlxsw_sp_port_fdb_flush_by_lag_id_fid(mlxsw_sp_port,
3621 return mlxsw_sp_port_fdb_flush_by_port_fid(mlxsw_sp_port, fid);
3624 static void mlxsw_sp_master_bridge_gone_sync(struct mlxsw_sp *mlxsw_sp)
3626 struct mlxsw_sp_fid *f, *tmp;
3628 list_for_each_entry_safe(f, tmp, &mlxsw_sp->fids, list)
3629 if (--f->ref_count == 0)
3630 mlxsw_sp_fid_destroy(mlxsw_sp, f);
3635 static bool mlxsw_sp_master_bridge_check(struct mlxsw_sp *mlxsw_sp,
3636 struct net_device *br_dev)
3638 return !mlxsw_sp->master_bridge.dev ||
3639 mlxsw_sp->master_bridge.dev == br_dev;
3642 static void mlxsw_sp_master_bridge_inc(struct mlxsw_sp *mlxsw_sp,
3643 struct net_device *br_dev)
3645 mlxsw_sp->master_bridge.dev = br_dev;
3646 mlxsw_sp->master_bridge.ref_count++;
3649 static void mlxsw_sp_master_bridge_dec(struct mlxsw_sp *mlxsw_sp)
3651 if (--mlxsw_sp->master_bridge.ref_count == 0) {
3652 mlxsw_sp->master_bridge.dev = NULL;
3653 /* It's possible upper VLAN devices are still holding
3654 * references to underlying FIDs. Drop the reference
3655 * and release the resources if it was the last one.
3656 * If it wasn't, then something bad happened.
3658 mlxsw_sp_master_bridge_gone_sync(mlxsw_sp);
3662 static int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port,
3663 struct net_device *br_dev)
3665 struct net_device *dev = mlxsw_sp_port->dev;
3668 /* When port is not bridged untagged packets are tagged with
3669 * PVID=VID=1, thereby creating an implicit VLAN interface in
3670 * the device. Remove it and let bridge code take care of its
3673 err = mlxsw_sp_port_kill_vid(dev, 0, 1);
3677 mlxsw_sp_master_bridge_inc(mlxsw_sp_port->mlxsw_sp, br_dev);
3679 mlxsw_sp_port->learning = 1;
3680 mlxsw_sp_port->learning_sync = 1;
3681 mlxsw_sp_port->uc_flood = 1;
3682 mlxsw_sp_port->bridged = 1;
3687 static void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port)
3689 struct net_device *dev = mlxsw_sp_port->dev;
3691 mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
3693 mlxsw_sp_master_bridge_dec(mlxsw_sp_port->mlxsw_sp);
3695 mlxsw_sp_port->learning = 0;
3696 mlxsw_sp_port->learning_sync = 0;
3697 mlxsw_sp_port->uc_flood = 0;
3698 mlxsw_sp_port->bridged = 0;
3700 /* Add implicit VLAN interface in the device, so that untagged
3701 * packets will be classified to the default vFID.
3703 mlxsw_sp_port_add_vid(dev, 0, 1);
3706 static int mlxsw_sp_lag_create(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
3708 char sldr_pl[MLXSW_REG_SLDR_LEN];
3710 mlxsw_reg_sldr_lag_create_pack(sldr_pl, lag_id);
3711 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
3714 static int mlxsw_sp_lag_destroy(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
3716 char sldr_pl[MLXSW_REG_SLDR_LEN];
3718 mlxsw_reg_sldr_lag_destroy_pack(sldr_pl, lag_id);
3719 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
3722 static int mlxsw_sp_lag_col_port_add(struct mlxsw_sp_port *mlxsw_sp_port,
3723 u16 lag_id, u8 port_index)
3725 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3726 char slcor_pl[MLXSW_REG_SLCOR_LEN];
3728 mlxsw_reg_slcor_port_add_pack(slcor_pl, mlxsw_sp_port->local_port,
3729 lag_id, port_index);
3730 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
3733 static int mlxsw_sp_lag_col_port_remove(struct mlxsw_sp_port *mlxsw_sp_port,
3736 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3737 char slcor_pl[MLXSW_REG_SLCOR_LEN];
3739 mlxsw_reg_slcor_port_remove_pack(slcor_pl, mlxsw_sp_port->local_port,
3741 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
3744 static int mlxsw_sp_lag_col_port_enable(struct mlxsw_sp_port *mlxsw_sp_port,
3747 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3748 char slcor_pl[MLXSW_REG_SLCOR_LEN];
3750 mlxsw_reg_slcor_col_enable_pack(slcor_pl, mlxsw_sp_port->local_port,
3752 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
3755 static int mlxsw_sp_lag_col_port_disable(struct mlxsw_sp_port *mlxsw_sp_port,
3758 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3759 char slcor_pl[MLXSW_REG_SLCOR_LEN];
3761 mlxsw_reg_slcor_col_disable_pack(slcor_pl, mlxsw_sp_port->local_port,
3763 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
3766 static int mlxsw_sp_lag_index_get(struct mlxsw_sp *mlxsw_sp,
3767 struct net_device *lag_dev,
3770 struct mlxsw_sp_upper *lag;
3771 int free_lag_id = -1;
3774 for (i = 0; i < MLXSW_SP_LAG_MAX; i++) {
3775 lag = mlxsw_sp_lag_get(mlxsw_sp, i);
3776 if (lag->ref_count) {
3777 if (lag->dev == lag_dev) {
3781 } else if (free_lag_id < 0) {
3785 if (free_lag_id < 0)
3787 *p_lag_id = free_lag_id;
3792 mlxsw_sp_master_lag_check(struct mlxsw_sp *mlxsw_sp,
3793 struct net_device *lag_dev,
3794 struct netdev_lag_upper_info *lag_upper_info)
3798 if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0)
3800 if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH)
3805 static int mlxsw_sp_port_lag_index_get(struct mlxsw_sp *mlxsw_sp,
3806 u16 lag_id, u8 *p_port_index)
3810 for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) {
3811 if (!mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i)) {
3820 mlxsw_sp_port_pvid_vport_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
3823 struct mlxsw_sp_port *mlxsw_sp_vport;
3824 struct mlxsw_sp_fid *f;
3826 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, 1);
3827 if (WARN_ON(!mlxsw_sp_vport))
3830 /* If vPort is assigned a RIF, then leave it since it's no
3833 f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
3835 f->leave(mlxsw_sp_vport);
3837 mlxsw_sp_vport->lag_id = lag_id;
3838 mlxsw_sp_vport->lagged = 1;
3842 mlxsw_sp_port_pvid_vport_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port)
3844 struct mlxsw_sp_port *mlxsw_sp_vport;
3845 struct mlxsw_sp_fid *f;
3847 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, 1);
3848 if (WARN_ON(!mlxsw_sp_vport))
3851 f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
3853 f->leave(mlxsw_sp_vport);
3855 mlxsw_sp_vport->lagged = 0;
3858 static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
3859 struct net_device *lag_dev)
3861 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3862 struct mlxsw_sp_upper *lag;
3867 err = mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id);
3870 lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id);
3871 if (!lag->ref_count) {
3872 err = mlxsw_sp_lag_create(mlxsw_sp, lag_id);
3878 err = mlxsw_sp_port_lag_index_get(mlxsw_sp, lag_id, &port_index);
3881 err = mlxsw_sp_lag_col_port_add(mlxsw_sp_port, lag_id, port_index);
3883 goto err_col_port_add;
3884 err = mlxsw_sp_lag_col_port_enable(mlxsw_sp_port, lag_id);
3886 goto err_col_port_enable;
3888 mlxsw_core_lag_mapping_set(mlxsw_sp->core, lag_id, port_index,
3889 mlxsw_sp_port->local_port);
3890 mlxsw_sp_port->lag_id = lag_id;
3891 mlxsw_sp_port->lagged = 1;
3894 mlxsw_sp_port_pvid_vport_lag_join(mlxsw_sp_port, lag_id);
3898 err_col_port_enable:
3899 mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id);
3901 if (!lag->ref_count)
3902 mlxsw_sp_lag_destroy(mlxsw_sp, lag_id);
3906 static void mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port,
3907 struct net_device *lag_dev)
3909 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3910 u16 lag_id = mlxsw_sp_port->lag_id;
3911 struct mlxsw_sp_upper *lag;
3913 if (!mlxsw_sp_port->lagged)
3915 lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id);
3916 WARN_ON(lag->ref_count == 0);
3918 mlxsw_sp_lag_col_port_disable(mlxsw_sp_port, lag_id);
3919 mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id);
3921 if (mlxsw_sp_port->bridged) {
3922 mlxsw_sp_port_active_vlans_del(mlxsw_sp_port);
3923 mlxsw_sp_port_bridge_leave(mlxsw_sp_port);
3926 if (lag->ref_count == 1)
3927 mlxsw_sp_lag_destroy(mlxsw_sp, lag_id);
3929 mlxsw_core_lag_mapping_clear(mlxsw_sp->core, lag_id,
3930 mlxsw_sp_port->local_port);
3931 mlxsw_sp_port->lagged = 0;
3934 mlxsw_sp_port_pvid_vport_lag_leave(mlxsw_sp_port);
3937 static int mlxsw_sp_lag_dist_port_add(struct mlxsw_sp_port *mlxsw_sp_port,
3940 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3941 char sldr_pl[MLXSW_REG_SLDR_LEN];
3943 mlxsw_reg_sldr_lag_add_port_pack(sldr_pl, lag_id,
3944 mlxsw_sp_port->local_port);
3945 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
3948 static int mlxsw_sp_lag_dist_port_remove(struct mlxsw_sp_port *mlxsw_sp_port,
3951 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3952 char sldr_pl[MLXSW_REG_SLDR_LEN];
3954 mlxsw_reg_sldr_lag_remove_port_pack(sldr_pl, lag_id,
3955 mlxsw_sp_port->local_port);
3956 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
3959 static int mlxsw_sp_port_lag_tx_en_set(struct mlxsw_sp_port *mlxsw_sp_port,
3960 bool lag_tx_enabled)
3963 return mlxsw_sp_lag_dist_port_add(mlxsw_sp_port,
3964 mlxsw_sp_port->lag_id);
3966 return mlxsw_sp_lag_dist_port_remove(mlxsw_sp_port,
3967 mlxsw_sp_port->lag_id);
3970 static int mlxsw_sp_port_lag_changed(struct mlxsw_sp_port *mlxsw_sp_port,
3971 struct netdev_lag_lower_state_info *info)
3973 return mlxsw_sp_port_lag_tx_en_set(mlxsw_sp_port, info->tx_enabled);
3976 static int mlxsw_sp_port_vlan_link(struct mlxsw_sp_port *mlxsw_sp_port,
3977 struct net_device *vlan_dev)
3979 struct mlxsw_sp_port *mlxsw_sp_vport;
3980 u16 vid = vlan_dev_vlan_id(vlan_dev);
3982 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
3983 if (WARN_ON(!mlxsw_sp_vport))
3986 mlxsw_sp_vport->dev = vlan_dev;
3991 static void mlxsw_sp_port_vlan_unlink(struct mlxsw_sp_port *mlxsw_sp_port,
3992 struct net_device *vlan_dev)
3994 struct mlxsw_sp_port *mlxsw_sp_vport;
3995 u16 vid = vlan_dev_vlan_id(vlan_dev);
3997 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
3998 if (WARN_ON(!mlxsw_sp_vport))
4001 mlxsw_sp_vport->dev = mlxsw_sp_port->dev;
4004 static int mlxsw_sp_netdevice_port_upper_event(struct net_device *dev,
4005 unsigned long event, void *ptr)
4007 struct netdev_notifier_changeupper_info *info;
4008 struct mlxsw_sp_port *mlxsw_sp_port;
4009 struct net_device *upper_dev;
4010 struct mlxsw_sp *mlxsw_sp;
4013 mlxsw_sp_port = netdev_priv(dev);
4014 mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
4018 case NETDEV_PRECHANGEUPPER:
4019 upper_dev = info->upper_dev;
4020 if (!is_vlan_dev(upper_dev) &&
4021 !netif_is_lag_master(upper_dev) &&
4022 !netif_is_bridge_master(upper_dev))
4026 /* HW limitation forbids to put ports to multiple bridges. */
4027 if (netif_is_bridge_master(upper_dev) &&
4028 !mlxsw_sp_master_bridge_check(mlxsw_sp, upper_dev))
4030 if (netif_is_lag_master(upper_dev) &&
4031 !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev,
4034 if (netif_is_lag_master(upper_dev) && vlan_uses_dev(dev))
4036 if (netif_is_lag_port(dev) && is_vlan_dev(upper_dev) &&
4037 !netif_is_lag_master(vlan_dev_real_dev(upper_dev)))
4040 case NETDEV_CHANGEUPPER:
4041 upper_dev = info->upper_dev;
4042 if (is_vlan_dev(upper_dev)) {
4044 err = mlxsw_sp_port_vlan_link(mlxsw_sp_port,
4047 mlxsw_sp_port_vlan_unlink(mlxsw_sp_port,
4049 } else if (netif_is_bridge_master(upper_dev)) {
4051 err = mlxsw_sp_port_bridge_join(mlxsw_sp_port,
4054 mlxsw_sp_port_bridge_leave(mlxsw_sp_port);
4055 } else if (netif_is_lag_master(upper_dev)) {
4057 err = mlxsw_sp_port_lag_join(mlxsw_sp_port,
4060 mlxsw_sp_port_lag_leave(mlxsw_sp_port,
4072 static int mlxsw_sp_netdevice_port_lower_event(struct net_device *dev,
4073 unsigned long event, void *ptr)
4075 struct netdev_notifier_changelowerstate_info *info;
4076 struct mlxsw_sp_port *mlxsw_sp_port;
4079 mlxsw_sp_port = netdev_priv(dev);
4083 case NETDEV_CHANGELOWERSTATE:
4084 if (netif_is_lag_port(dev) && mlxsw_sp_port->lagged) {
4085 err = mlxsw_sp_port_lag_changed(mlxsw_sp_port,
4086 info->lower_state_info);
4088 netdev_err(dev, "Failed to reflect link aggregation lower state change\n");
4096 static int mlxsw_sp_netdevice_port_event(struct net_device *dev,
4097 unsigned long event, void *ptr)
4100 case NETDEV_PRECHANGEUPPER:
4101 case NETDEV_CHANGEUPPER:
4102 return mlxsw_sp_netdevice_port_upper_event(dev, event, ptr);
4103 case NETDEV_CHANGELOWERSTATE:
4104 return mlxsw_sp_netdevice_port_lower_event(dev, event, ptr);
4110 static int mlxsw_sp_netdevice_lag_event(struct net_device *lag_dev,
4111 unsigned long event, void *ptr)
4113 struct net_device *dev;
4114 struct list_head *iter;
4117 netdev_for_each_lower_dev(lag_dev, dev, iter) {
4118 if (mlxsw_sp_port_dev_check(dev)) {
4119 ret = mlxsw_sp_netdevice_port_event(dev, event, ptr);
4128 static int mlxsw_sp_master_bridge_vlan_link(struct mlxsw_sp *mlxsw_sp,
4129 struct net_device *vlan_dev)
4131 u16 fid = vlan_dev_vlan_id(vlan_dev);
4132 struct mlxsw_sp_fid *f;
4134 f = mlxsw_sp_fid_find(mlxsw_sp, fid);
4136 f = mlxsw_sp_fid_create(mlxsw_sp, fid);
4146 static void mlxsw_sp_master_bridge_vlan_unlink(struct mlxsw_sp *mlxsw_sp,
4147 struct net_device *vlan_dev)
4149 u16 fid = vlan_dev_vlan_id(vlan_dev);
4150 struct mlxsw_sp_fid *f;
4152 f = mlxsw_sp_fid_find(mlxsw_sp, fid);
4154 mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
4155 if (f && --f->ref_count == 0)
4156 mlxsw_sp_fid_destroy(mlxsw_sp, f);
4159 static int mlxsw_sp_netdevice_bridge_event(struct net_device *br_dev,
4160 unsigned long event, void *ptr)
4162 struct netdev_notifier_changeupper_info *info;
4163 struct net_device *upper_dev;
4164 struct mlxsw_sp *mlxsw_sp;
4167 mlxsw_sp = mlxsw_sp_lower_get(br_dev);
4170 if (br_dev != mlxsw_sp->master_bridge.dev)
4176 case NETDEV_CHANGEUPPER:
4177 upper_dev = info->upper_dev;
4178 if (!is_vlan_dev(upper_dev))
4180 if (info->linking) {
4181 err = mlxsw_sp_master_bridge_vlan_link(mlxsw_sp,
4186 mlxsw_sp_master_bridge_vlan_unlink(mlxsw_sp, upper_dev);
4194 static u16 mlxsw_sp_avail_vfid_get(const struct mlxsw_sp *mlxsw_sp)
4196 return find_first_zero_bit(mlxsw_sp->vfids.mapped,
4200 static int mlxsw_sp_vfid_op(struct mlxsw_sp *mlxsw_sp, u16 fid, bool create)
4202 char sfmr_pl[MLXSW_REG_SFMR_LEN];
4204 mlxsw_reg_sfmr_pack(sfmr_pl, !create, fid, 0);
4205 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
4208 static void mlxsw_sp_vport_vfid_leave(struct mlxsw_sp_port *mlxsw_sp_vport);
4210 static struct mlxsw_sp_fid *mlxsw_sp_vfid_create(struct mlxsw_sp *mlxsw_sp,
4211 struct net_device *br_dev)
4213 struct device *dev = mlxsw_sp->bus_info->dev;
4214 struct mlxsw_sp_fid *f;
4218 vfid = mlxsw_sp_avail_vfid_get(mlxsw_sp);
4219 if (vfid == MLXSW_SP_VFID_MAX) {
4220 dev_err(dev, "No available vFIDs\n");
4221 return ERR_PTR(-ERANGE);
4224 fid = mlxsw_sp_vfid_to_fid(vfid);
4225 err = mlxsw_sp_vfid_op(mlxsw_sp, fid, true);
4227 dev_err(dev, "Failed to create FID=%d\n", fid);
4228 return ERR_PTR(err);
4231 f = kzalloc(sizeof(*f), GFP_KERNEL);
4233 goto err_allocate_vfid;
4235 f->leave = mlxsw_sp_vport_vfid_leave;
4239 list_add(&f->list, &mlxsw_sp->vfids.list);
4240 set_bit(vfid, mlxsw_sp->vfids.mapped);
4245 mlxsw_sp_vfid_op(mlxsw_sp, fid, false);
4246 return ERR_PTR(-ENOMEM);
4249 static void mlxsw_sp_vfid_destroy(struct mlxsw_sp *mlxsw_sp,
4250 struct mlxsw_sp_fid *f)
4252 u16 vfid = mlxsw_sp_fid_to_vfid(f->fid);
4255 clear_bit(vfid, mlxsw_sp->vfids.mapped);
4259 mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
4263 mlxsw_sp_vfid_op(mlxsw_sp, fid, false);
4266 static int mlxsw_sp_vport_fid_map(struct mlxsw_sp_port *mlxsw_sp_vport, u16 fid,
4269 enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
4270 u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
4272 return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, mt, valid, fid,
4276 static int mlxsw_sp_vport_vfid_join(struct mlxsw_sp_port *mlxsw_sp_vport,
4277 struct net_device *br_dev)
4279 struct mlxsw_sp_fid *f;
4282 f = mlxsw_sp_vfid_find(mlxsw_sp_vport->mlxsw_sp, br_dev);
4284 f = mlxsw_sp_vfid_create(mlxsw_sp_vport->mlxsw_sp, br_dev);
4289 err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, true);
4291 goto err_vport_flood_set;
4293 err = mlxsw_sp_vport_fid_map(mlxsw_sp_vport, f->fid, true);
4295 goto err_vport_fid_map;
4297 mlxsw_sp_vport_fid_set(mlxsw_sp_vport, f);
4300 netdev_dbg(mlxsw_sp_vport->dev, "Joined FID=%d\n", f->fid);
4305 mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, false);
4306 err_vport_flood_set:
4308 mlxsw_sp_vfid_destroy(mlxsw_sp_vport->mlxsw_sp, f);
4312 static void mlxsw_sp_vport_vfid_leave(struct mlxsw_sp_port *mlxsw_sp_vport)
4314 struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
4316 netdev_dbg(mlxsw_sp_vport->dev, "Left FID=%d\n", f->fid);
4318 mlxsw_sp_vport_fid_map(mlxsw_sp_vport, f->fid, false);
4320 mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, false);
4322 mlxsw_sp_port_fdb_flush(mlxsw_sp_vport, f->fid);
4324 mlxsw_sp_vport_fid_set(mlxsw_sp_vport, NULL);
4325 if (--f->ref_count == 0)
4326 mlxsw_sp_vfid_destroy(mlxsw_sp_vport->mlxsw_sp, f);
4329 static int mlxsw_sp_vport_bridge_join(struct mlxsw_sp_port *mlxsw_sp_vport,
4330 struct net_device *br_dev)
4332 struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
4333 u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
4334 struct net_device *dev = mlxsw_sp_vport->dev;
4337 if (f && !WARN_ON(!f->leave))
4338 f->leave(mlxsw_sp_vport);
4340 err = mlxsw_sp_vport_vfid_join(mlxsw_sp_vport, br_dev);
4342 netdev_err(dev, "Failed to join vFID\n");
4346 err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true);
4348 netdev_err(dev, "Failed to enable learning\n");
4349 goto err_port_vid_learning_set;
4352 mlxsw_sp_vport->learning = 1;
4353 mlxsw_sp_vport->learning_sync = 1;
4354 mlxsw_sp_vport->uc_flood = 1;
4355 mlxsw_sp_vport->bridged = 1;
4359 err_port_vid_learning_set:
4360 mlxsw_sp_vport_vfid_leave(mlxsw_sp_vport);
4364 static void mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_vport)
4366 u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
4368 mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false);
4370 mlxsw_sp_vport_vfid_leave(mlxsw_sp_vport);
4372 mlxsw_sp_vport->learning = 0;
4373 mlxsw_sp_vport->learning_sync = 0;
4374 mlxsw_sp_vport->uc_flood = 0;
4375 mlxsw_sp_vport->bridged = 0;
4379 mlxsw_sp_port_master_bridge_check(const struct mlxsw_sp_port *mlxsw_sp_port,
4380 const struct net_device *br_dev)
4382 struct mlxsw_sp_port *mlxsw_sp_vport;
4384 list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list,
4386 struct net_device *dev = mlxsw_sp_vport_dev_get(mlxsw_sp_vport);
4388 if (dev && dev == br_dev)
4395 static int mlxsw_sp_netdevice_vport_event(struct net_device *dev,
4396 unsigned long event, void *ptr,
4399 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
4400 struct netdev_notifier_changeupper_info *info = ptr;
4401 struct mlxsw_sp_port *mlxsw_sp_vport;
4402 struct net_device *upper_dev;
4405 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
4408 case NETDEV_PRECHANGEUPPER:
4409 upper_dev = info->upper_dev;
4410 if (!netif_is_bridge_master(upper_dev))
4414 /* We can't have multiple VLAN interfaces configured on
4415 * the same port and being members in the same bridge.
4417 if (!mlxsw_sp_port_master_bridge_check(mlxsw_sp_port,
4421 case NETDEV_CHANGEUPPER:
4422 upper_dev = info->upper_dev;
4423 if (info->linking) {
4424 if (WARN_ON(!mlxsw_sp_vport))
4426 err = mlxsw_sp_vport_bridge_join(mlxsw_sp_vport,
4429 if (!mlxsw_sp_vport)
4431 mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport);
4438 static int mlxsw_sp_netdevice_lag_vport_event(struct net_device *lag_dev,
4439 unsigned long event, void *ptr,
4442 struct net_device *dev;
4443 struct list_head *iter;
4446 netdev_for_each_lower_dev(lag_dev, dev, iter) {
4447 if (mlxsw_sp_port_dev_check(dev)) {
4448 ret = mlxsw_sp_netdevice_vport_event(dev, event, ptr,
4458 static int mlxsw_sp_netdevice_vlan_event(struct net_device *vlan_dev,
4459 unsigned long event, void *ptr)
4461 struct net_device *real_dev = vlan_dev_real_dev(vlan_dev);
4462 u16 vid = vlan_dev_vlan_id(vlan_dev);
4464 if (mlxsw_sp_port_dev_check(real_dev))
4465 return mlxsw_sp_netdevice_vport_event(real_dev, event, ptr,
4467 else if (netif_is_lag_master(real_dev))
4468 return mlxsw_sp_netdevice_lag_vport_event(real_dev, event, ptr,
4474 static int mlxsw_sp_netdevice_event(struct notifier_block *unused,
4475 unsigned long event, void *ptr)
4477 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4480 if (event == NETDEV_CHANGEADDR || event == NETDEV_CHANGEMTU)
4481 err = mlxsw_sp_netdevice_router_port_event(dev);
4482 else if (mlxsw_sp_port_dev_check(dev))
4483 err = mlxsw_sp_netdevice_port_event(dev, event, ptr);
4484 else if (netif_is_lag_master(dev))
4485 err = mlxsw_sp_netdevice_lag_event(dev, event, ptr);
4486 else if (netif_is_bridge_master(dev))
4487 err = mlxsw_sp_netdevice_bridge_event(dev, event, ptr);
4488 else if (is_vlan_dev(dev))
4489 err = mlxsw_sp_netdevice_vlan_event(dev, event, ptr);
4491 return notifier_from_errno(err);
4494 static struct notifier_block mlxsw_sp_netdevice_nb __read_mostly = {
4495 .notifier_call = mlxsw_sp_netdevice_event,
4498 static struct notifier_block mlxsw_sp_inetaddr_nb __read_mostly = {
4499 .notifier_call = mlxsw_sp_inetaddr_event,
4500 .priority = 10, /* Must be called before FIB notifier block */
4503 static int __init mlxsw_sp_module_init(void)
4507 register_netdevice_notifier(&mlxsw_sp_netdevice_nb);
4508 register_inetaddr_notifier(&mlxsw_sp_inetaddr_nb);
4509 err = mlxsw_core_driver_register(&mlxsw_sp_driver);
4511 goto err_core_driver_register;
4514 err_core_driver_register:
4515 unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb);
4519 static void __exit mlxsw_sp_module_exit(void)
4521 mlxsw_core_driver_unregister(&mlxsw_sp_driver);
4522 unregister_inetaddr_notifier(&mlxsw_sp_inetaddr_nb);
4523 unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb);
4526 module_init(mlxsw_sp_module_init);
4527 module_exit(mlxsw_sp_module_exit);
4529 MODULE_LICENSE("Dual BSD/GPL");
4530 MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>");
4531 MODULE_DESCRIPTION("Mellanox Spectrum driver");
4532 MODULE_MLXSW_DRIVER_ALIAS(MLXSW_DEVICE_KIND_SPECTRUM);