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/dcbnl.h>
53 #include <net/switchdev.h>
54 #include <generated/utsrelease.h>
63 static const char mlxsw_sp_driver_name[] = "mlxsw_spectrum";
64 static const char mlxsw_sp_driver_version[] = "1.0";
70 MLXSW_ITEM32(tx, hdr, version, 0x00, 28, 4);
73 * Packet control type.
74 * 0 - Ethernet control (e.g. EMADs, LACP)
77 MLXSW_ITEM32(tx, hdr, ctl, 0x00, 26, 2);
80 * Packet protocol type. Must be set to 1 (Ethernet).
82 MLXSW_ITEM32(tx, hdr, proto, 0x00, 21, 3);
84 /* tx_hdr_rx_is_router
85 * Packet is sent from the router. Valid for data packets only.
87 MLXSW_ITEM32(tx, hdr, rx_is_router, 0x00, 19, 1);
90 * Indicates if the 'fid' field is valid and should be used for
91 * forwarding lookup. Valid for data packets only.
93 MLXSW_ITEM32(tx, hdr, fid_valid, 0x00, 16, 1);
96 * Switch partition ID. Must be set to 0.
98 MLXSW_ITEM32(tx, hdr, swid, 0x00, 12, 3);
100 /* tx_hdr_control_tclass
101 * Indicates if the packet should use the control TClass and not one
102 * of the data TClasses.
104 MLXSW_ITEM32(tx, hdr, control_tclass, 0x00, 6, 1);
107 * Egress TClass to be used on the egress device on the egress port.
109 MLXSW_ITEM32(tx, hdr, etclass, 0x00, 0, 4);
112 * Destination local port for unicast packets.
113 * Destination multicast ID for multicast packets.
115 * Control packets are directed to a specific egress port, while data
116 * packets are transmitted through the CPU port (0) into the switch partition,
117 * where forwarding rules are applied.
119 MLXSW_ITEM32(tx, hdr, port_mid, 0x04, 16, 16);
122 * Forwarding ID used for L2 forwarding lookup. Valid only if 'fid_valid' is
123 * set, otherwise calculated based on the packet's VID using VID to FID mapping.
124 * Valid for data packets only.
126 MLXSW_ITEM32(tx, hdr, fid, 0x08, 0, 16);
130 * 6 - Control packets
132 MLXSW_ITEM32(tx, hdr, type, 0x0C, 0, 4);
134 static void mlxsw_sp_txhdr_construct(struct sk_buff *skb,
135 const struct mlxsw_tx_info *tx_info)
137 char *txhdr = skb_push(skb, MLXSW_TXHDR_LEN);
139 memset(txhdr, 0, MLXSW_TXHDR_LEN);
141 mlxsw_tx_hdr_version_set(txhdr, MLXSW_TXHDR_VERSION_1);
142 mlxsw_tx_hdr_ctl_set(txhdr, MLXSW_TXHDR_ETH_CTL);
143 mlxsw_tx_hdr_proto_set(txhdr, MLXSW_TXHDR_PROTO_ETH);
144 mlxsw_tx_hdr_swid_set(txhdr, 0);
145 mlxsw_tx_hdr_control_tclass_set(txhdr, 1);
146 mlxsw_tx_hdr_port_mid_set(txhdr, tx_info->local_port);
147 mlxsw_tx_hdr_type_set(txhdr, MLXSW_TXHDR_TYPE_CONTROL);
150 static int mlxsw_sp_base_mac_get(struct mlxsw_sp *mlxsw_sp)
152 char spad_pl[MLXSW_REG_SPAD_LEN];
155 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(spad), spad_pl);
158 mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_sp->base_mac);
162 static int mlxsw_sp_port_admin_status_set(struct mlxsw_sp_port *mlxsw_sp_port,
165 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
166 char paos_pl[MLXSW_REG_PAOS_LEN];
168 mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port,
169 is_up ? MLXSW_PORT_ADMIN_STATUS_UP :
170 MLXSW_PORT_ADMIN_STATUS_DOWN);
171 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(paos), paos_pl);
174 static int mlxsw_sp_port_oper_status_get(struct mlxsw_sp_port *mlxsw_sp_port,
177 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
178 char paos_pl[MLXSW_REG_PAOS_LEN];
182 mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port, 0);
183 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(paos), paos_pl);
186 oper_status = mlxsw_reg_paos_oper_status_get(paos_pl);
187 *p_is_up = oper_status == MLXSW_PORT_ADMIN_STATUS_UP ? true : false;
191 static int mlxsw_sp_port_dev_addr_set(struct mlxsw_sp_port *mlxsw_sp_port,
194 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
195 char ppad_pl[MLXSW_REG_PPAD_LEN];
197 mlxsw_reg_ppad_pack(ppad_pl, true, mlxsw_sp_port->local_port);
198 mlxsw_reg_ppad_mac_memcpy_to(ppad_pl, addr);
199 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppad), ppad_pl);
202 static int mlxsw_sp_port_dev_addr_init(struct mlxsw_sp_port *mlxsw_sp_port)
204 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
205 unsigned char *addr = mlxsw_sp_port->dev->dev_addr;
207 ether_addr_copy(addr, mlxsw_sp->base_mac);
208 addr[ETH_ALEN - 1] += mlxsw_sp_port->local_port;
209 return mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr);
212 static int mlxsw_sp_port_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port,
213 u16 vid, enum mlxsw_reg_spms_state state)
215 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
219 spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL);
222 mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port);
223 mlxsw_reg_spms_vid_pack(spms_pl, vid, state);
224 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl);
229 static int mlxsw_sp_port_mtu_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu)
231 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
232 char pmtu_pl[MLXSW_REG_PMTU_LEN];
236 mtu += MLXSW_TXHDR_LEN + ETH_HLEN;
237 mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, 0);
238 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
241 max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl);
246 mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, mtu);
247 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
250 static int mlxsw_sp_port_swid_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 swid)
252 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
253 char pspa_pl[MLXSW_REG_PSPA_LEN];
255 mlxsw_reg_pspa_pack(pspa_pl, swid, mlxsw_sp_port->local_port);
256 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pspa), pspa_pl);
259 static int mlxsw_sp_port_vp_mode_set(struct mlxsw_sp_port *mlxsw_sp_port,
262 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
263 char svpe_pl[MLXSW_REG_SVPE_LEN];
265 mlxsw_reg_svpe_pack(svpe_pl, mlxsw_sp_port->local_port, enable);
266 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svpe), svpe_pl);
269 int mlxsw_sp_port_vid_to_fid_set(struct mlxsw_sp_port *mlxsw_sp_port,
270 enum mlxsw_reg_svfa_mt mt, bool valid, u16 fid,
273 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
274 char svfa_pl[MLXSW_REG_SVFA_LEN];
276 mlxsw_reg_svfa_pack(svfa_pl, mlxsw_sp_port->local_port, mt, valid,
278 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svfa), svfa_pl);
281 static int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
282 u16 vid, bool learn_enable)
284 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
288 spvmlr_pl = kmalloc(MLXSW_REG_SPVMLR_LEN, GFP_KERNEL);
291 mlxsw_reg_spvmlr_pack(spvmlr_pl, mlxsw_sp_port->local_port, vid, vid,
293 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvmlr), spvmlr_pl);
299 mlxsw_sp_port_system_port_mapping_set(struct mlxsw_sp_port *mlxsw_sp_port)
301 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
302 char sspr_pl[MLXSW_REG_SSPR_LEN];
304 mlxsw_reg_sspr_pack(sspr_pl, mlxsw_sp_port->local_port);
305 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sspr), sspr_pl);
308 static int __mlxsw_sp_port_module_info_get(struct mlxsw_sp *mlxsw_sp,
309 u8 local_port, u8 *p_module,
310 u8 *p_width, u8 *p_lane)
312 char pmlp_pl[MLXSW_REG_PMLP_LEN];
315 mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
316 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
319 *p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0);
320 *p_width = mlxsw_reg_pmlp_width_get(pmlp_pl);
321 *p_lane = mlxsw_reg_pmlp_tx_lane_get(pmlp_pl, 0);
325 static int mlxsw_sp_port_module_info_get(struct mlxsw_sp *mlxsw_sp,
326 u8 local_port, u8 *p_module,
331 return __mlxsw_sp_port_module_info_get(mlxsw_sp, local_port, p_module,
335 static int mlxsw_sp_port_module_map(struct mlxsw_sp *mlxsw_sp, u8 local_port,
336 u8 module, u8 width, u8 lane)
338 char pmlp_pl[MLXSW_REG_PMLP_LEN];
341 mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
342 mlxsw_reg_pmlp_width_set(pmlp_pl, width);
343 for (i = 0; i < width; i++) {
344 mlxsw_reg_pmlp_module_set(pmlp_pl, i, module);
345 mlxsw_reg_pmlp_tx_lane_set(pmlp_pl, i, lane + i); /* Rx & Tx */
348 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
351 static int mlxsw_sp_port_module_unmap(struct mlxsw_sp *mlxsw_sp, u8 local_port)
353 char pmlp_pl[MLXSW_REG_PMLP_LEN];
355 mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
356 mlxsw_reg_pmlp_width_set(pmlp_pl, 0);
357 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
360 static int mlxsw_sp_port_open(struct net_device *dev)
362 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
365 err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
368 netif_start_queue(dev);
372 static int mlxsw_sp_port_stop(struct net_device *dev)
374 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
376 netif_stop_queue(dev);
377 return mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
380 static netdev_tx_t mlxsw_sp_port_xmit(struct sk_buff *skb,
381 struct net_device *dev)
383 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
384 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
385 struct mlxsw_sp_port_pcpu_stats *pcpu_stats;
386 const struct mlxsw_tx_info tx_info = {
387 .local_port = mlxsw_sp_port->local_port,
393 if (mlxsw_core_skb_transmit_busy(mlxsw_sp->core, &tx_info))
394 return NETDEV_TX_BUSY;
396 if (unlikely(skb_headroom(skb) < MLXSW_TXHDR_LEN)) {
397 struct sk_buff *skb_orig = skb;
399 skb = skb_realloc_headroom(skb, MLXSW_TXHDR_LEN);
401 this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
402 dev_kfree_skb_any(skb_orig);
407 if (eth_skb_pad(skb)) {
408 this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
412 mlxsw_sp_txhdr_construct(skb, &tx_info);
414 /* Due to a race we might fail here because of a full queue. In that
415 * unlikely case we simply drop the packet.
417 err = mlxsw_core_skb_transmit(mlxsw_sp->core, skb, &tx_info);
420 pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
421 u64_stats_update_begin(&pcpu_stats->syncp);
422 pcpu_stats->tx_packets++;
423 pcpu_stats->tx_bytes += len;
424 u64_stats_update_end(&pcpu_stats->syncp);
426 this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
427 dev_kfree_skb_any(skb);
432 static void mlxsw_sp_set_rx_mode(struct net_device *dev)
436 static int mlxsw_sp_port_set_mac_address(struct net_device *dev, void *p)
438 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
439 struct sockaddr *addr = p;
442 if (!is_valid_ether_addr(addr->sa_data))
443 return -EADDRNOTAVAIL;
445 err = mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr->sa_data);
448 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
452 static void mlxsw_sp_pg_buf_pack(char *pbmc_pl, int pg_index, int mtu,
453 bool pause_en, bool pfc_en, u16 delay)
455 u16 pg_size = 2 * MLXSW_SP_BYTES_TO_CELLS(mtu);
457 delay = pfc_en ? mlxsw_sp_pfc_delay_get(mtu, delay) :
458 MLXSW_SP_PAUSE_DELAY;
460 if (pause_en || pfc_en)
461 mlxsw_reg_pbmc_lossless_buffer_pack(pbmc_pl, pg_index,
462 pg_size + delay, pg_size);
464 mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl, pg_index, pg_size);
467 int __mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, int mtu,
468 u8 *prio_tc, bool pause_en,
469 struct ieee_pfc *my_pfc)
471 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
472 u8 pfc_en = !!my_pfc ? my_pfc->pfc_en : 0;
473 u16 delay = !!my_pfc ? my_pfc->delay : 0;
474 char pbmc_pl[MLXSW_REG_PBMC_LEN];
477 mlxsw_reg_pbmc_pack(pbmc_pl, mlxsw_sp_port->local_port, 0, 0);
478 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl);
482 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
483 bool configure = false;
486 for (j = 0; j < IEEE_8021QAZ_MAX_TCS; j++) {
487 if (prio_tc[j] == i) {
488 pfc = pfc_en & BIT(j);
496 mlxsw_sp_pg_buf_pack(pbmc_pl, i, mtu, pause_en, pfc, delay);
499 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl);
502 static int mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port,
503 int mtu, bool pause_en)
505 u8 def_prio_tc[IEEE_8021QAZ_MAX_TCS] = {0};
506 bool dcb_en = !!mlxsw_sp_port->dcb.ets;
507 struct ieee_pfc *my_pfc;
510 prio_tc = dcb_en ? mlxsw_sp_port->dcb.ets->prio_tc : def_prio_tc;
511 my_pfc = dcb_en ? mlxsw_sp_port->dcb.pfc : NULL;
513 return __mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, prio_tc,
517 static int mlxsw_sp_port_change_mtu(struct net_device *dev, int mtu)
519 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
520 bool pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port);
523 err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, pause_en);
526 err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, mtu);
528 goto err_port_mtu_set;
533 mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
537 static struct rtnl_link_stats64 *
538 mlxsw_sp_port_get_stats64(struct net_device *dev,
539 struct rtnl_link_stats64 *stats)
541 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
542 struct mlxsw_sp_port_pcpu_stats *p;
543 u64 rx_packets, rx_bytes, tx_packets, tx_bytes;
548 for_each_possible_cpu(i) {
549 p = per_cpu_ptr(mlxsw_sp_port->pcpu_stats, i);
551 start = u64_stats_fetch_begin_irq(&p->syncp);
552 rx_packets = p->rx_packets;
553 rx_bytes = p->rx_bytes;
554 tx_packets = p->tx_packets;
555 tx_bytes = p->tx_bytes;
556 } while (u64_stats_fetch_retry_irq(&p->syncp, start));
558 stats->rx_packets += rx_packets;
559 stats->rx_bytes += rx_bytes;
560 stats->tx_packets += tx_packets;
561 stats->tx_bytes += tx_bytes;
562 /* tx_dropped is u32, updated without syncp protection. */
563 tx_dropped += p->tx_dropped;
565 stats->tx_dropped = tx_dropped;
569 int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin,
570 u16 vid_end, bool is_member, bool untagged)
572 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
576 spvm_pl = kmalloc(MLXSW_REG_SPVM_LEN, GFP_KERNEL);
580 mlxsw_reg_spvm_pack(spvm_pl, mlxsw_sp_port->local_port, vid_begin,
581 vid_end, is_member, untagged);
582 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvm), spvm_pl);
587 static int mlxsw_sp_port_vp_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port)
589 enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
590 u16 vid, last_visited_vid;
593 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
594 err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, true, vid,
597 last_visited_vid = vid;
598 goto err_port_vid_to_fid_set;
602 err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, true);
604 last_visited_vid = VLAN_N_VID;
605 goto err_port_vid_to_fid_set;
610 err_port_vid_to_fid_set:
611 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid)
612 mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false, vid,
617 static int mlxsw_sp_port_vlan_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port)
619 enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
623 err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false);
627 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
628 err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false,
637 static struct mlxsw_sp_vfid *
638 mlxsw_sp_vfid_find(const struct mlxsw_sp *mlxsw_sp, u16 vid)
640 struct mlxsw_sp_vfid *vfid;
642 list_for_each_entry(vfid, &mlxsw_sp->port_vfids.list, list) {
643 if (vfid->vid == vid)
650 static u16 mlxsw_sp_avail_vfid_get(const struct mlxsw_sp *mlxsw_sp)
652 return find_first_zero_bit(mlxsw_sp->port_vfids.mapped,
653 MLXSW_SP_VFID_PORT_MAX);
656 static int __mlxsw_sp_vfid_create(struct mlxsw_sp *mlxsw_sp, u16 vfid)
658 u16 fid = mlxsw_sp_vfid_to_fid(vfid);
659 char sfmr_pl[MLXSW_REG_SFMR_LEN];
661 mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_CREATE_FID, fid, 0);
662 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
665 static void __mlxsw_sp_vfid_destroy(struct mlxsw_sp *mlxsw_sp, u16 vfid)
667 u16 fid = mlxsw_sp_vfid_to_fid(vfid);
668 char sfmr_pl[MLXSW_REG_SFMR_LEN];
670 mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_DESTROY_FID, fid, 0);
671 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
674 static struct mlxsw_sp_vfid *mlxsw_sp_vfid_create(struct mlxsw_sp *mlxsw_sp,
677 struct device *dev = mlxsw_sp->bus_info->dev;
678 struct mlxsw_sp_vfid *vfid;
682 n_vfid = mlxsw_sp_avail_vfid_get(mlxsw_sp);
683 if (n_vfid == MLXSW_SP_VFID_PORT_MAX) {
684 dev_err(dev, "No available vFIDs\n");
685 return ERR_PTR(-ERANGE);
688 err = __mlxsw_sp_vfid_create(mlxsw_sp, n_vfid);
690 dev_err(dev, "Failed to create vFID=%d\n", n_vfid);
694 vfid = kzalloc(sizeof(*vfid), GFP_KERNEL);
696 goto err_allocate_vfid;
701 list_add(&vfid->list, &mlxsw_sp->port_vfids.list);
702 set_bit(n_vfid, mlxsw_sp->port_vfids.mapped);
707 __mlxsw_sp_vfid_destroy(mlxsw_sp, n_vfid);
708 return ERR_PTR(-ENOMEM);
711 static void mlxsw_sp_vfid_destroy(struct mlxsw_sp *mlxsw_sp,
712 struct mlxsw_sp_vfid *vfid)
714 clear_bit(vfid->vfid, mlxsw_sp->port_vfids.mapped);
715 list_del(&vfid->list);
717 __mlxsw_sp_vfid_destroy(mlxsw_sp, vfid->vfid);
722 static struct mlxsw_sp_port *
723 mlxsw_sp_port_vport_create(struct mlxsw_sp_port *mlxsw_sp_port,
724 struct mlxsw_sp_vfid *vfid)
726 struct mlxsw_sp_port *mlxsw_sp_vport;
728 mlxsw_sp_vport = kzalloc(sizeof(*mlxsw_sp_vport), GFP_KERNEL);
732 /* dev will be set correctly after the VLAN device is linked
733 * with the real device. In case of bridge SELF invocation, dev
736 mlxsw_sp_vport->dev = mlxsw_sp_port->dev;
737 mlxsw_sp_vport->mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
738 mlxsw_sp_vport->local_port = mlxsw_sp_port->local_port;
739 mlxsw_sp_vport->stp_state = BR_STATE_FORWARDING;
740 mlxsw_sp_vport->lagged = mlxsw_sp_port->lagged;
741 mlxsw_sp_vport->lag_id = mlxsw_sp_port->lag_id;
742 mlxsw_sp_vport->vport.vfid = vfid;
743 mlxsw_sp_vport->vport.vid = vfid->vid;
745 list_add(&mlxsw_sp_vport->vport.list, &mlxsw_sp_port->vports_list);
747 return mlxsw_sp_vport;
750 static void mlxsw_sp_port_vport_destroy(struct mlxsw_sp_port *mlxsw_sp_vport)
752 list_del(&mlxsw_sp_vport->vport.list);
753 kfree(mlxsw_sp_vport);
756 int mlxsw_sp_port_add_vid(struct net_device *dev, __be16 __always_unused proto,
759 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
760 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
761 struct mlxsw_sp_port *mlxsw_sp_vport;
762 struct mlxsw_sp_vfid *vfid;
765 /* VLAN 0 is added to HW filter when device goes up, but it is
766 * reserved in our case, so simply return.
771 if (mlxsw_sp_port_vport_find(mlxsw_sp_port, vid)) {
772 netdev_warn(dev, "VID=%d already configured\n", vid);
776 vfid = mlxsw_sp_vfid_find(mlxsw_sp, vid);
778 vfid = mlxsw_sp_vfid_create(mlxsw_sp, vid);
780 netdev_err(dev, "Failed to create vFID for VID=%d\n",
782 return PTR_ERR(vfid);
786 mlxsw_sp_vport = mlxsw_sp_port_vport_create(mlxsw_sp_port, vfid);
787 if (!mlxsw_sp_vport) {
788 netdev_err(dev, "Failed to create vPort for VID=%d\n", vid);
790 goto err_port_vport_create;
793 if (!vfid->nr_vports) {
794 err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid,
797 netdev_err(dev, "Failed to setup flooding for vFID=%d\n",
799 goto err_vport_flood_set;
803 /* When adding the first VLAN interface on a bridged port we need to
804 * transition all the active 802.1Q bridge VLANs to use explicit
805 * {Port, VID} to FID mappings and set the port's mode to Virtual mode.
807 if (list_is_singular(&mlxsw_sp_port->vports_list)) {
808 err = mlxsw_sp_port_vp_mode_trans(mlxsw_sp_port);
810 netdev_err(dev, "Failed to set to Virtual mode\n");
811 goto err_port_vp_mode_trans;
815 err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport,
816 MLXSW_REG_SVFA_MT_PORT_VID_TO_FID,
818 mlxsw_sp_vfid_to_fid(vfid->vfid),
821 netdev_err(dev, "Failed to map {Port, VID=%d} to vFID=%d\n",
823 goto err_port_vid_to_fid_set;
826 err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false);
828 netdev_err(dev, "Failed to disable learning for VID=%d\n", vid);
829 goto err_port_vid_learning_set;
832 err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, true, false);
834 netdev_err(dev, "Failed to set VLAN membership for VID=%d\n",
836 goto err_port_add_vid;
839 err = mlxsw_sp_port_stp_state_set(mlxsw_sp_vport, vid,
840 MLXSW_REG_SPMS_STATE_FORWARDING);
842 netdev_err(dev, "Failed to set STP state for VID=%d\n", vid);
843 goto err_port_stp_state_set;
850 err_port_stp_state_set:
851 mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, false, false);
853 mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true);
854 err_port_vid_learning_set:
855 mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport,
856 MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, false,
857 mlxsw_sp_vfid_to_fid(vfid->vfid), vid);
858 err_port_vid_to_fid_set:
859 if (list_is_singular(&mlxsw_sp_port->vports_list))
860 mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port);
861 err_port_vp_mode_trans:
862 if (!vfid->nr_vports)
863 mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, false,
866 mlxsw_sp_port_vport_destroy(mlxsw_sp_vport);
867 err_port_vport_create:
868 if (!vfid->nr_vports)
869 mlxsw_sp_vfid_destroy(mlxsw_sp, vfid);
873 int mlxsw_sp_port_kill_vid(struct net_device *dev,
874 __be16 __always_unused proto, u16 vid)
876 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
877 struct mlxsw_sp_port *mlxsw_sp_vport;
878 struct mlxsw_sp_vfid *vfid;
881 /* VLAN 0 is removed from HW filter when device goes down, but
882 * it is reserved in our case, so simply return.
887 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
888 if (!mlxsw_sp_vport) {
889 netdev_warn(dev, "VID=%d does not exist\n", vid);
893 vfid = mlxsw_sp_vport->vport.vfid;
895 err = mlxsw_sp_port_stp_state_set(mlxsw_sp_vport, vid,
896 MLXSW_REG_SPMS_STATE_DISCARDING);
898 netdev_err(dev, "Failed to set STP state for VID=%d\n", vid);
902 err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, false, false);
904 netdev_err(dev, "Failed to set VLAN membership for VID=%d\n",
909 err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true);
911 netdev_err(dev, "Failed to enable learning for VID=%d\n", vid);
915 err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport,
916 MLXSW_REG_SVFA_MT_PORT_VID_TO_FID,
918 mlxsw_sp_vfid_to_fid(vfid->vfid),
921 netdev_err(dev, "Failed to invalidate {Port, VID=%d} to vFID=%d mapping\n",
926 /* When removing the last VLAN interface on a bridged port we need to
927 * transition all active 802.1Q bridge VLANs to use VID to FID
928 * mappings and set port's mode to VLAN mode.
930 if (list_is_singular(&mlxsw_sp_port->vports_list)) {
931 err = mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port);
933 netdev_err(dev, "Failed to set to VLAN mode\n");
939 mlxsw_sp_port_vport_destroy(mlxsw_sp_vport);
941 /* Destroy the vFID if no vPorts are assigned to it anymore. */
942 if (!vfid->nr_vports)
943 mlxsw_sp_vfid_destroy(mlxsw_sp_port->mlxsw_sp, vfid);
948 static int mlxsw_sp_port_get_phys_port_name(struct net_device *dev, char *name,
951 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
952 u8 module, width, lane;
955 err = __mlxsw_sp_port_module_info_get(mlxsw_sp_port->mlxsw_sp,
956 mlxsw_sp_port->local_port,
957 &module, &width, &lane);
959 netdev_err(dev, "Failed to retrieve module information\n");
963 if (!mlxsw_sp_port->split)
964 err = snprintf(name, len, "p%d", module + 1);
966 err = snprintf(name, len, "p%ds%d", module + 1,
975 static const struct net_device_ops mlxsw_sp_port_netdev_ops = {
976 .ndo_open = mlxsw_sp_port_open,
977 .ndo_stop = mlxsw_sp_port_stop,
978 .ndo_start_xmit = mlxsw_sp_port_xmit,
979 .ndo_set_rx_mode = mlxsw_sp_set_rx_mode,
980 .ndo_set_mac_address = mlxsw_sp_port_set_mac_address,
981 .ndo_change_mtu = mlxsw_sp_port_change_mtu,
982 .ndo_get_stats64 = mlxsw_sp_port_get_stats64,
983 .ndo_vlan_rx_add_vid = mlxsw_sp_port_add_vid,
984 .ndo_vlan_rx_kill_vid = mlxsw_sp_port_kill_vid,
985 .ndo_fdb_add = switchdev_port_fdb_add,
986 .ndo_fdb_del = switchdev_port_fdb_del,
987 .ndo_fdb_dump = switchdev_port_fdb_dump,
988 .ndo_bridge_setlink = switchdev_port_bridge_setlink,
989 .ndo_bridge_getlink = switchdev_port_bridge_getlink,
990 .ndo_bridge_dellink = switchdev_port_bridge_dellink,
991 .ndo_get_phys_port_name = mlxsw_sp_port_get_phys_port_name,
994 static void mlxsw_sp_port_get_drvinfo(struct net_device *dev,
995 struct ethtool_drvinfo *drvinfo)
997 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
998 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1000 strlcpy(drvinfo->driver, mlxsw_sp_driver_name, sizeof(drvinfo->driver));
1001 strlcpy(drvinfo->version, mlxsw_sp_driver_version,
1002 sizeof(drvinfo->version));
1003 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
1005 mlxsw_sp->bus_info->fw_rev.major,
1006 mlxsw_sp->bus_info->fw_rev.minor,
1007 mlxsw_sp->bus_info->fw_rev.subminor);
1008 strlcpy(drvinfo->bus_info, mlxsw_sp->bus_info->device_name,
1009 sizeof(drvinfo->bus_info));
1012 static void mlxsw_sp_port_get_pauseparam(struct net_device *dev,
1013 struct ethtool_pauseparam *pause)
1015 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1017 pause->rx_pause = mlxsw_sp_port->link.rx_pause;
1018 pause->tx_pause = mlxsw_sp_port->link.tx_pause;
1021 static int mlxsw_sp_port_pause_set(struct mlxsw_sp_port *mlxsw_sp_port,
1022 struct ethtool_pauseparam *pause)
1024 char pfcc_pl[MLXSW_REG_PFCC_LEN];
1026 mlxsw_reg_pfcc_pack(pfcc_pl, mlxsw_sp_port->local_port);
1027 mlxsw_reg_pfcc_pprx_set(pfcc_pl, pause->rx_pause);
1028 mlxsw_reg_pfcc_pptx_set(pfcc_pl, pause->tx_pause);
1030 return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pfcc),
1034 static int mlxsw_sp_port_set_pauseparam(struct net_device *dev,
1035 struct ethtool_pauseparam *pause)
1037 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1038 bool pause_en = pause->tx_pause || pause->rx_pause;
1041 if (mlxsw_sp_port->dcb.pfc && mlxsw_sp_port->dcb.pfc->pfc_en) {
1042 netdev_err(dev, "PFC already enabled on port\n");
1046 if (pause->autoneg) {
1047 netdev_err(dev, "PAUSE frames autonegotiation isn't supported\n");
1051 err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
1053 netdev_err(dev, "Failed to configure port's headroom\n");
1057 err = mlxsw_sp_port_pause_set(mlxsw_sp_port, pause);
1059 netdev_err(dev, "Failed to set PAUSE parameters\n");
1060 goto err_port_pause_configure;
1063 mlxsw_sp_port->link.rx_pause = pause->rx_pause;
1064 mlxsw_sp_port->link.tx_pause = pause->tx_pause;
1068 err_port_pause_configure:
1069 pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port);
1070 mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
1074 struct mlxsw_sp_port_hw_stats {
1075 char str[ETH_GSTRING_LEN];
1076 u64 (*getter)(char *payload);
1079 static const struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_stats[] = {
1081 .str = "a_frames_transmitted_ok",
1082 .getter = mlxsw_reg_ppcnt_a_frames_transmitted_ok_get,
1085 .str = "a_frames_received_ok",
1086 .getter = mlxsw_reg_ppcnt_a_frames_received_ok_get,
1089 .str = "a_frame_check_sequence_errors",
1090 .getter = mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get,
1093 .str = "a_alignment_errors",
1094 .getter = mlxsw_reg_ppcnt_a_alignment_errors_get,
1097 .str = "a_octets_transmitted_ok",
1098 .getter = mlxsw_reg_ppcnt_a_octets_transmitted_ok_get,
1101 .str = "a_octets_received_ok",
1102 .getter = mlxsw_reg_ppcnt_a_octets_received_ok_get,
1105 .str = "a_multicast_frames_xmitted_ok",
1106 .getter = mlxsw_reg_ppcnt_a_multicast_frames_xmitted_ok_get,
1109 .str = "a_broadcast_frames_xmitted_ok",
1110 .getter = mlxsw_reg_ppcnt_a_broadcast_frames_xmitted_ok_get,
1113 .str = "a_multicast_frames_received_ok",
1114 .getter = mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get,
1117 .str = "a_broadcast_frames_received_ok",
1118 .getter = mlxsw_reg_ppcnt_a_broadcast_frames_received_ok_get,
1121 .str = "a_in_range_length_errors",
1122 .getter = mlxsw_reg_ppcnt_a_in_range_length_errors_get,
1125 .str = "a_out_of_range_length_field",
1126 .getter = mlxsw_reg_ppcnt_a_out_of_range_length_field_get,
1129 .str = "a_frame_too_long_errors",
1130 .getter = mlxsw_reg_ppcnt_a_frame_too_long_errors_get,
1133 .str = "a_symbol_error_during_carrier",
1134 .getter = mlxsw_reg_ppcnt_a_symbol_error_during_carrier_get,
1137 .str = "a_mac_control_frames_transmitted",
1138 .getter = mlxsw_reg_ppcnt_a_mac_control_frames_transmitted_get,
1141 .str = "a_mac_control_frames_received",
1142 .getter = mlxsw_reg_ppcnt_a_mac_control_frames_received_get,
1145 .str = "a_unsupported_opcodes_received",
1146 .getter = mlxsw_reg_ppcnt_a_unsupported_opcodes_received_get,
1149 .str = "a_pause_mac_ctrl_frames_received",
1150 .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_received_get,
1153 .str = "a_pause_mac_ctrl_frames_xmitted",
1154 .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_transmitted_get,
1158 #define MLXSW_SP_PORT_HW_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_stats)
1160 static void mlxsw_sp_port_get_strings(struct net_device *dev,
1161 u32 stringset, u8 *data)
1166 switch (stringset) {
1168 for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++) {
1169 memcpy(p, mlxsw_sp_port_hw_stats[i].str,
1171 p += ETH_GSTRING_LEN;
1177 static int mlxsw_sp_port_set_phys_id(struct net_device *dev,
1178 enum ethtool_phys_id_state state)
1180 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1181 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1182 char mlcr_pl[MLXSW_REG_MLCR_LEN];
1186 case ETHTOOL_ID_ACTIVE:
1189 case ETHTOOL_ID_INACTIVE:
1196 mlxsw_reg_mlcr_pack(mlcr_pl, mlxsw_sp_port->local_port, active);
1197 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mlcr), mlcr_pl);
1200 static void mlxsw_sp_port_get_stats(struct net_device *dev,
1201 struct ethtool_stats *stats, u64 *data)
1203 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1204 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1205 char ppcnt_pl[MLXSW_REG_PPCNT_LEN];
1209 mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port,
1210 MLXSW_REG_PPCNT_IEEE_8023_CNT, 0);
1211 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl);
1212 for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++)
1213 data[i] = !err ? mlxsw_sp_port_hw_stats[i].getter(ppcnt_pl) : 0;
1216 static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset)
1220 return MLXSW_SP_PORT_HW_STATS_LEN;
1226 struct mlxsw_sp_port_link_mode {
1233 static const struct mlxsw_sp_port_link_mode mlxsw_sp_port_link_mode[] = {
1235 .mask = MLXSW_REG_PTYS_ETH_SPEED_100BASE_T,
1236 .supported = SUPPORTED_100baseT_Full,
1237 .advertised = ADVERTISED_100baseT_Full,
1241 .mask = MLXSW_REG_PTYS_ETH_SPEED_100BASE_TX,
1245 .mask = MLXSW_REG_PTYS_ETH_SPEED_SGMII |
1246 MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX,
1247 .supported = SUPPORTED_1000baseKX_Full,
1248 .advertised = ADVERTISED_1000baseKX_Full,
1252 .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_T,
1253 .supported = SUPPORTED_10000baseT_Full,
1254 .advertised = ADVERTISED_10000baseT_Full,
1258 .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4 |
1259 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4,
1260 .supported = SUPPORTED_10000baseKX4_Full,
1261 .advertised = ADVERTISED_10000baseKX4_Full,
1265 .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
1266 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
1267 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
1268 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR,
1269 .supported = SUPPORTED_10000baseKR_Full,
1270 .advertised = ADVERTISED_10000baseKR_Full,
1274 .mask = MLXSW_REG_PTYS_ETH_SPEED_20GBASE_KR2,
1275 .supported = SUPPORTED_20000baseKR2_Full,
1276 .advertised = ADVERTISED_20000baseKR2_Full,
1280 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4,
1281 .supported = SUPPORTED_40000baseCR4_Full,
1282 .advertised = ADVERTISED_40000baseCR4_Full,
1286 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4,
1287 .supported = SUPPORTED_40000baseKR4_Full,
1288 .advertised = ADVERTISED_40000baseKR4_Full,
1292 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4,
1293 .supported = SUPPORTED_40000baseSR4_Full,
1294 .advertised = ADVERTISED_40000baseSR4_Full,
1298 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4,
1299 .supported = SUPPORTED_40000baseLR4_Full,
1300 .advertised = ADVERTISED_40000baseLR4_Full,
1304 .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR |
1305 MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR |
1306 MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR,
1310 .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR4 |
1311 MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2 |
1312 MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2,
1316 .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4,
1317 .supported = SUPPORTED_56000baseKR4_Full,
1318 .advertised = ADVERTISED_56000baseKR4_Full,
1322 .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4 |
1323 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
1324 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 |
1325 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4,
1330 #define MLXSW_SP_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp_port_link_mode)
1332 static u32 mlxsw_sp_from_ptys_supported_port(u32 ptys_eth_proto)
1334 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
1335 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
1336 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
1337 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
1338 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
1339 MLXSW_REG_PTYS_ETH_SPEED_SGMII))
1340 return SUPPORTED_FIBRE;
1342 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
1343 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
1344 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
1345 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 |
1346 MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX))
1347 return SUPPORTED_Backplane;
1351 static u32 mlxsw_sp_from_ptys_supported_link(u32 ptys_eth_proto)
1356 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1357 if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask)
1358 modes |= mlxsw_sp_port_link_mode[i].supported;
1363 static u32 mlxsw_sp_from_ptys_advert_link(u32 ptys_eth_proto)
1368 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1369 if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask)
1370 modes |= mlxsw_sp_port_link_mode[i].advertised;
1375 static void mlxsw_sp_from_ptys_speed_duplex(bool carrier_ok, u32 ptys_eth_proto,
1376 struct ethtool_cmd *cmd)
1378 u32 speed = SPEED_UNKNOWN;
1379 u8 duplex = DUPLEX_UNKNOWN;
1385 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1386 if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) {
1387 speed = mlxsw_sp_port_link_mode[i].speed;
1388 duplex = DUPLEX_FULL;
1393 ethtool_cmd_speed_set(cmd, speed);
1394 cmd->duplex = duplex;
1397 static u8 mlxsw_sp_port_connector_port(u32 ptys_eth_proto)
1399 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
1400 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
1401 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
1402 MLXSW_REG_PTYS_ETH_SPEED_SGMII))
1405 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
1406 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
1407 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4))
1410 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
1411 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
1412 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
1413 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4))
1419 static int mlxsw_sp_port_get_settings(struct net_device *dev,
1420 struct ethtool_cmd *cmd)
1422 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1423 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1424 char ptys_pl[MLXSW_REG_PTYS_LEN];
1426 u32 eth_proto_admin;
1430 mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
1431 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1433 netdev_err(dev, "Failed to get proto");
1436 mlxsw_reg_ptys_unpack(ptys_pl, ð_proto_cap,
1437 ð_proto_admin, ð_proto_oper);
1439 cmd->supported = mlxsw_sp_from_ptys_supported_port(eth_proto_cap) |
1440 mlxsw_sp_from_ptys_supported_link(eth_proto_cap) |
1441 SUPPORTED_Pause | SUPPORTED_Asym_Pause;
1442 cmd->advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_admin);
1443 mlxsw_sp_from_ptys_speed_duplex(netif_carrier_ok(dev),
1444 eth_proto_oper, cmd);
1446 eth_proto_oper = eth_proto_oper ? eth_proto_oper : eth_proto_cap;
1447 cmd->port = mlxsw_sp_port_connector_port(eth_proto_oper);
1448 cmd->lp_advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_oper);
1450 cmd->transceiver = XCVR_INTERNAL;
1454 static u32 mlxsw_sp_to_ptys_advert_link(u32 advertising)
1459 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1460 if (advertising & mlxsw_sp_port_link_mode[i].advertised)
1461 ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
1466 static u32 mlxsw_sp_to_ptys_speed(u32 speed)
1471 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1472 if (speed == mlxsw_sp_port_link_mode[i].speed)
1473 ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
1478 static u32 mlxsw_sp_to_ptys_upper_speed(u32 upper_speed)
1483 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1484 if (mlxsw_sp_port_link_mode[i].speed <= upper_speed)
1485 ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
1490 static int mlxsw_sp_port_set_settings(struct net_device *dev,
1491 struct ethtool_cmd *cmd)
1493 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1494 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1495 char ptys_pl[MLXSW_REG_PTYS_LEN];
1499 u32 eth_proto_admin;
1503 speed = ethtool_cmd_speed(cmd);
1505 eth_proto_new = cmd->autoneg == AUTONEG_ENABLE ?
1506 mlxsw_sp_to_ptys_advert_link(cmd->advertising) :
1507 mlxsw_sp_to_ptys_speed(speed);
1509 mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
1510 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1512 netdev_err(dev, "Failed to get proto");
1515 mlxsw_reg_ptys_unpack(ptys_pl, ð_proto_cap, ð_proto_admin, NULL);
1517 eth_proto_new = eth_proto_new & eth_proto_cap;
1518 if (!eth_proto_new) {
1519 netdev_err(dev, "Not supported proto admin requested");
1522 if (eth_proto_new == eth_proto_admin)
1525 mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, eth_proto_new);
1526 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1528 netdev_err(dev, "Failed to set proto admin");
1532 err = mlxsw_sp_port_oper_status_get(mlxsw_sp_port, &is_up);
1534 netdev_err(dev, "Failed to get oper status");
1540 err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
1542 netdev_err(dev, "Failed to set admin status");
1546 err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
1548 netdev_err(dev, "Failed to set admin status");
1555 static const struct ethtool_ops mlxsw_sp_port_ethtool_ops = {
1556 .get_drvinfo = mlxsw_sp_port_get_drvinfo,
1557 .get_link = ethtool_op_get_link,
1558 .get_pauseparam = mlxsw_sp_port_get_pauseparam,
1559 .set_pauseparam = mlxsw_sp_port_set_pauseparam,
1560 .get_strings = mlxsw_sp_port_get_strings,
1561 .set_phys_id = mlxsw_sp_port_set_phys_id,
1562 .get_ethtool_stats = mlxsw_sp_port_get_stats,
1563 .get_sset_count = mlxsw_sp_port_get_sset_count,
1564 .get_settings = mlxsw_sp_port_get_settings,
1565 .set_settings = mlxsw_sp_port_set_settings,
1569 mlxsw_sp_port_speed_by_width_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 width)
1571 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1572 u32 upper_speed = MLXSW_SP_PORT_BASE_SPEED * width;
1573 char ptys_pl[MLXSW_REG_PTYS_LEN];
1574 u32 eth_proto_admin;
1576 eth_proto_admin = mlxsw_sp_to_ptys_upper_speed(upper_speed);
1577 mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port,
1579 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1582 int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port,
1583 enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index,
1584 bool dwrr, u8 dwrr_weight)
1586 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1587 char qeec_pl[MLXSW_REG_QEEC_LEN];
1589 mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
1591 mlxsw_reg_qeec_de_set(qeec_pl, true);
1592 mlxsw_reg_qeec_dwrr_set(qeec_pl, dwrr);
1593 mlxsw_reg_qeec_dwrr_weight_set(qeec_pl, dwrr_weight);
1594 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
1597 int mlxsw_sp_port_ets_maxrate_set(struct mlxsw_sp_port *mlxsw_sp_port,
1598 enum mlxsw_reg_qeec_hr hr, u8 index,
1599 u8 next_index, u32 maxrate)
1601 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1602 char qeec_pl[MLXSW_REG_QEEC_LEN];
1604 mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
1606 mlxsw_reg_qeec_mase_set(qeec_pl, true);
1607 mlxsw_reg_qeec_max_shaper_rate_set(qeec_pl, maxrate);
1608 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
1611 int mlxsw_sp_port_prio_tc_set(struct mlxsw_sp_port *mlxsw_sp_port,
1612 u8 switch_prio, u8 tclass)
1614 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1615 char qtct_pl[MLXSW_REG_QTCT_LEN];
1617 mlxsw_reg_qtct_pack(qtct_pl, mlxsw_sp_port->local_port, switch_prio,
1619 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qtct), qtct_pl);
1622 static int mlxsw_sp_port_ets_init(struct mlxsw_sp_port *mlxsw_sp_port)
1626 /* Setup the elements hierarcy, so that each TC is linked to
1627 * one subgroup, which are all member in the same group.
1629 err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
1630 MLXSW_REG_QEEC_HIERARCY_GROUP, 0, 0, false,
1634 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
1635 err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
1636 MLXSW_REG_QEEC_HIERARCY_SUBGROUP, i,
1641 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
1642 err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
1643 MLXSW_REG_QEEC_HIERARCY_TC, i, i,
1649 /* Make sure the max shaper is disabled in all hierarcies that
1652 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
1653 MLXSW_REG_QEEC_HIERARCY_PORT, 0, 0,
1654 MLXSW_REG_QEEC_MAS_DIS);
1657 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
1658 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
1659 MLXSW_REG_QEEC_HIERARCY_SUBGROUP,
1661 MLXSW_REG_QEEC_MAS_DIS);
1665 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
1666 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
1667 MLXSW_REG_QEEC_HIERARCY_TC,
1669 MLXSW_REG_QEEC_MAS_DIS);
1674 /* Map all priorities to traffic class 0. */
1675 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
1676 err = mlxsw_sp_port_prio_tc_set(mlxsw_sp_port, i, 0);
1684 static int __mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
1685 bool split, u8 module, u8 width)
1687 struct mlxsw_sp_port *mlxsw_sp_port;
1688 struct net_device *dev;
1692 dev = alloc_etherdev(sizeof(struct mlxsw_sp_port));
1695 mlxsw_sp_port = netdev_priv(dev);
1696 mlxsw_sp_port->dev = dev;
1697 mlxsw_sp_port->mlxsw_sp = mlxsw_sp;
1698 mlxsw_sp_port->local_port = local_port;
1699 mlxsw_sp_port->split = split;
1700 bytes = DIV_ROUND_UP(VLAN_N_VID, BITS_PER_BYTE);
1701 mlxsw_sp_port->active_vlans = kzalloc(bytes, GFP_KERNEL);
1702 if (!mlxsw_sp_port->active_vlans) {
1704 goto err_port_active_vlans_alloc;
1706 mlxsw_sp_port->untagged_vlans = kzalloc(bytes, GFP_KERNEL);
1707 if (!mlxsw_sp_port->untagged_vlans) {
1709 goto err_port_untagged_vlans_alloc;
1711 INIT_LIST_HEAD(&mlxsw_sp_port->vports_list);
1713 mlxsw_sp_port->pcpu_stats =
1714 netdev_alloc_pcpu_stats(struct mlxsw_sp_port_pcpu_stats);
1715 if (!mlxsw_sp_port->pcpu_stats) {
1717 goto err_alloc_stats;
1720 dev->netdev_ops = &mlxsw_sp_port_netdev_ops;
1721 dev->ethtool_ops = &mlxsw_sp_port_ethtool_ops;
1723 err = mlxsw_sp_port_dev_addr_init(mlxsw_sp_port);
1725 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unable to init port mac address\n",
1726 mlxsw_sp_port->local_port);
1727 goto err_dev_addr_init;
1730 netif_carrier_off(dev);
1732 dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_LLTX | NETIF_F_SG |
1733 NETIF_F_HW_VLAN_CTAG_FILTER;
1735 /* Each packet needs to have a Tx header (metadata) on top all other
1738 dev->hard_header_len += MLXSW_TXHDR_LEN;
1740 err = mlxsw_sp_port_system_port_mapping_set(mlxsw_sp_port);
1742 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set system port mapping\n",
1743 mlxsw_sp_port->local_port);
1744 goto err_port_system_port_mapping_set;
1747 err = mlxsw_sp_port_swid_set(mlxsw_sp_port, 0);
1749 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set SWID\n",
1750 mlxsw_sp_port->local_port);
1751 goto err_port_swid_set;
1754 err = mlxsw_sp_port_speed_by_width_set(mlxsw_sp_port, width);
1756 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to enable speeds\n",
1757 mlxsw_sp_port->local_port);
1758 goto err_port_speed_by_width_set;
1761 err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, ETH_DATA_LEN);
1763 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set MTU\n",
1764 mlxsw_sp_port->local_port);
1765 goto err_port_mtu_set;
1768 err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
1770 goto err_port_admin_status_set;
1772 err = mlxsw_sp_port_buffers_init(mlxsw_sp_port);
1774 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize buffers\n",
1775 mlxsw_sp_port->local_port);
1776 goto err_port_buffers_init;
1779 err = mlxsw_sp_port_ets_init(mlxsw_sp_port);
1781 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize ETS\n",
1782 mlxsw_sp_port->local_port);
1783 goto err_port_ets_init;
1786 /* ETS and buffers must be initialized before DCB. */
1787 err = mlxsw_sp_port_dcb_init(mlxsw_sp_port);
1789 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize DCB\n",
1790 mlxsw_sp_port->local_port);
1791 goto err_port_dcb_init;
1794 mlxsw_sp_port_switchdev_init(mlxsw_sp_port);
1795 err = register_netdev(dev);
1797 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to register netdev\n",
1798 mlxsw_sp_port->local_port);
1799 goto err_register_netdev;
1802 err = mlxsw_core_port_init(mlxsw_sp->core, &mlxsw_sp_port->core_port,
1803 mlxsw_sp_port->local_port, dev,
1804 mlxsw_sp_port->split, module);
1806 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to init core port\n",
1807 mlxsw_sp_port->local_port);
1808 goto err_core_port_init;
1811 err = mlxsw_sp_port_vlan_init(mlxsw_sp_port);
1813 goto err_port_vlan_init;
1815 mlxsw_sp->ports[local_port] = mlxsw_sp_port;
1819 mlxsw_core_port_fini(&mlxsw_sp_port->core_port);
1821 unregister_netdev(dev);
1822 err_register_netdev:
1825 err_port_buffers_init:
1826 err_port_admin_status_set:
1828 err_port_speed_by_width_set:
1830 err_port_system_port_mapping_set:
1832 free_percpu(mlxsw_sp_port->pcpu_stats);
1834 kfree(mlxsw_sp_port->untagged_vlans);
1835 err_port_untagged_vlans_alloc:
1836 kfree(mlxsw_sp_port->active_vlans);
1837 err_port_active_vlans_alloc:
1842 static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
1843 bool split, u8 module, u8 width, u8 lane)
1847 err = mlxsw_sp_port_module_map(mlxsw_sp, local_port, module, width,
1852 err = __mlxsw_sp_port_create(mlxsw_sp, local_port, split, module,
1855 goto err_port_create;
1860 mlxsw_sp_port_module_unmap(mlxsw_sp, local_port);
1864 static void mlxsw_sp_port_vports_fini(struct mlxsw_sp_port *mlxsw_sp_port)
1866 struct net_device *dev = mlxsw_sp_port->dev;
1867 struct mlxsw_sp_port *mlxsw_sp_vport, *tmp;
1869 list_for_each_entry_safe(mlxsw_sp_vport, tmp,
1870 &mlxsw_sp_port->vports_list, vport.list) {
1871 u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
1873 /* vPorts created for VLAN devices should already be gone
1874 * by now, since we unregistered the port netdev.
1876 WARN_ON(is_vlan_dev(mlxsw_sp_vport->dev));
1877 mlxsw_sp_port_kill_vid(dev, 0, vid);
1881 static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
1883 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
1887 mlxsw_sp->ports[local_port] = NULL;
1888 mlxsw_core_port_fini(&mlxsw_sp_port->core_port);
1889 unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */
1890 mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
1891 mlxsw_sp_port_vports_fini(mlxsw_sp_port);
1892 mlxsw_sp_port_switchdev_fini(mlxsw_sp_port);
1893 mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT);
1894 mlxsw_sp_port_module_unmap(mlxsw_sp, mlxsw_sp_port->local_port);
1895 free_percpu(mlxsw_sp_port->pcpu_stats);
1896 kfree(mlxsw_sp_port->untagged_vlans);
1897 kfree(mlxsw_sp_port->active_vlans);
1898 free_netdev(mlxsw_sp_port->dev);
1901 static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp)
1905 for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++)
1906 mlxsw_sp_port_remove(mlxsw_sp, i);
1907 kfree(mlxsw_sp->ports);
1910 static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp)
1917 alloc_size = sizeof(struct mlxsw_sp_port *) * MLXSW_PORT_MAX_PORTS;
1918 mlxsw_sp->ports = kzalloc(alloc_size, GFP_KERNEL);
1919 if (!mlxsw_sp->ports)
1922 for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++) {
1923 err = mlxsw_sp_port_module_info_get(mlxsw_sp, i, &module,
1926 goto err_port_module_info_get;
1929 mlxsw_sp->port_to_module[i] = module;
1930 err = __mlxsw_sp_port_create(mlxsw_sp, i, false, module, width);
1932 goto err_port_create;
1937 err_port_module_info_get:
1938 for (i--; i >= 1; i--)
1939 mlxsw_sp_port_remove(mlxsw_sp, i);
1940 kfree(mlxsw_sp->ports);
1944 static u8 mlxsw_sp_cluster_base_port_get(u8 local_port)
1946 u8 offset = (local_port - 1) % MLXSW_SP_PORTS_PER_CLUSTER_MAX;
1948 return local_port - offset;
1951 static int mlxsw_sp_port_split(struct mlxsw_core *mlxsw_core, u8 local_port,
1954 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
1955 struct mlxsw_sp_port *mlxsw_sp_port;
1956 u8 width = MLXSW_PORT_MODULE_MAX_WIDTH / count;
1957 u8 module, cur_width, base_port;
1961 mlxsw_sp_port = mlxsw_sp->ports[local_port];
1962 if (!mlxsw_sp_port) {
1963 dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
1968 if (count != 2 && count != 4) {
1969 netdev_err(mlxsw_sp_port->dev, "Port can only be split into 2 or 4 ports\n");
1973 err = mlxsw_sp_port_module_info_get(mlxsw_sp, local_port, &module,
1976 netdev_err(mlxsw_sp_port->dev, "Failed to get port's width\n");
1980 if (cur_width != MLXSW_PORT_MODULE_MAX_WIDTH) {
1981 netdev_err(mlxsw_sp_port->dev, "Port cannot be split further\n");
1985 /* Make sure we have enough slave (even) ports for the split. */
1987 base_port = local_port;
1988 if (mlxsw_sp->ports[base_port + 1]) {
1989 netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
1993 base_port = mlxsw_sp_cluster_base_port_get(local_port);
1994 if (mlxsw_sp->ports[base_port + 1] ||
1995 mlxsw_sp->ports[base_port + 3]) {
1996 netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
2001 for (i = 0; i < count; i++)
2002 mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
2004 for (i = 0; i < count; i++) {
2005 err = mlxsw_sp_port_create(mlxsw_sp, base_port + i, true,
2006 module, width, i * width);
2008 dev_err(mlxsw_sp->bus_info->dev, "Failed to create split port\n");
2009 goto err_port_create;
2016 for (i--; i >= 0; i--)
2017 mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
2018 for (i = 0; i < count / 2; i++) {
2019 module = mlxsw_sp->port_to_module[base_port + i * 2];
2020 mlxsw_sp_port_create(mlxsw_sp, base_port + i * 2, false,
2021 module, MLXSW_PORT_MODULE_MAX_WIDTH, 0);
2026 static int mlxsw_sp_port_unsplit(struct mlxsw_core *mlxsw_core, u8 local_port)
2028 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2029 struct mlxsw_sp_port *mlxsw_sp_port;
2030 u8 module, cur_width, base_port;
2035 mlxsw_sp_port = mlxsw_sp->ports[local_port];
2036 if (!mlxsw_sp_port) {
2037 dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
2042 if (!mlxsw_sp_port->split) {
2043 netdev_err(mlxsw_sp_port->dev, "Port wasn't split\n");
2047 err = mlxsw_sp_port_module_info_get(mlxsw_sp, local_port, &module,
2050 netdev_err(mlxsw_sp_port->dev, "Failed to get port's width\n");
2053 count = cur_width == 1 ? 4 : 2;
2055 base_port = mlxsw_sp_cluster_base_port_get(local_port);
2057 /* Determine which ports to remove. */
2058 if (count == 2 && local_port >= base_port + 2)
2059 base_port = base_port + 2;
2061 for (i = 0; i < count; i++)
2062 mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
2064 for (i = 0; i < count / 2; i++) {
2065 module = mlxsw_sp->port_to_module[base_port + i * 2];
2066 err = mlxsw_sp_port_create(mlxsw_sp, base_port + i * 2, false,
2067 module, MLXSW_PORT_MODULE_MAX_WIDTH,
2070 dev_err(mlxsw_sp->bus_info->dev, "Failed to reinstantiate port\n");
2076 static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg,
2077 char *pude_pl, void *priv)
2079 struct mlxsw_sp *mlxsw_sp = priv;
2080 struct mlxsw_sp_port *mlxsw_sp_port;
2081 enum mlxsw_reg_pude_oper_status status;
2084 local_port = mlxsw_reg_pude_local_port_get(pude_pl);
2085 mlxsw_sp_port = mlxsw_sp->ports[local_port];
2086 if (!mlxsw_sp_port) {
2087 dev_warn(mlxsw_sp->bus_info->dev, "Port %d: Link event received for non-existent port\n",
2092 status = mlxsw_reg_pude_oper_status_get(pude_pl);
2093 if (status == MLXSW_PORT_OPER_STATUS_UP) {
2094 netdev_info(mlxsw_sp_port->dev, "link up\n");
2095 netif_carrier_on(mlxsw_sp_port->dev);
2097 netdev_info(mlxsw_sp_port->dev, "link down\n");
2098 netif_carrier_off(mlxsw_sp_port->dev);
2102 static struct mlxsw_event_listener mlxsw_sp_pude_event = {
2103 .func = mlxsw_sp_pude_event_func,
2104 .trap_id = MLXSW_TRAP_ID_PUDE,
2107 static int mlxsw_sp_event_register(struct mlxsw_sp *mlxsw_sp,
2108 enum mlxsw_event_trap_id trap_id)
2110 struct mlxsw_event_listener *el;
2111 char hpkt_pl[MLXSW_REG_HPKT_LEN];
2115 case MLXSW_TRAP_ID_PUDE:
2116 el = &mlxsw_sp_pude_event;
2119 err = mlxsw_core_event_listener_register(mlxsw_sp->core, el, mlxsw_sp);
2123 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD, trap_id);
2124 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2126 goto err_event_trap_set;
2131 mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp);
2135 static void mlxsw_sp_event_unregister(struct mlxsw_sp *mlxsw_sp,
2136 enum mlxsw_event_trap_id trap_id)
2138 struct mlxsw_event_listener *el;
2141 case MLXSW_TRAP_ID_PUDE:
2142 el = &mlxsw_sp_pude_event;
2145 mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp);
2148 static void mlxsw_sp_rx_listener_func(struct sk_buff *skb, u8 local_port,
2151 struct mlxsw_sp *mlxsw_sp = priv;
2152 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
2153 struct mlxsw_sp_port_pcpu_stats *pcpu_stats;
2155 if (unlikely(!mlxsw_sp_port)) {
2156 dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: skb received for non-existent port\n",
2161 skb->dev = mlxsw_sp_port->dev;
2163 pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
2164 u64_stats_update_begin(&pcpu_stats->syncp);
2165 pcpu_stats->rx_packets++;
2166 pcpu_stats->rx_bytes += skb->len;
2167 u64_stats_update_end(&pcpu_stats->syncp);
2169 skb->protocol = eth_type_trans(skb, skb->dev);
2170 netif_receive_skb(skb);
2173 static const struct mlxsw_rx_listener mlxsw_sp_rx_listener[] = {
2175 .func = mlxsw_sp_rx_listener_func,
2176 .local_port = MLXSW_PORT_DONT_CARE,
2177 .trap_id = MLXSW_TRAP_ID_FDB_MC,
2179 /* Traps for specific L2 packet types, not trapped as FDB MC */
2181 .func = mlxsw_sp_rx_listener_func,
2182 .local_port = MLXSW_PORT_DONT_CARE,
2183 .trap_id = MLXSW_TRAP_ID_STP,
2186 .func = mlxsw_sp_rx_listener_func,
2187 .local_port = MLXSW_PORT_DONT_CARE,
2188 .trap_id = MLXSW_TRAP_ID_LACP,
2191 .func = mlxsw_sp_rx_listener_func,
2192 .local_port = MLXSW_PORT_DONT_CARE,
2193 .trap_id = MLXSW_TRAP_ID_EAPOL,
2196 .func = mlxsw_sp_rx_listener_func,
2197 .local_port = MLXSW_PORT_DONT_CARE,
2198 .trap_id = MLXSW_TRAP_ID_LLDP,
2201 .func = mlxsw_sp_rx_listener_func,
2202 .local_port = MLXSW_PORT_DONT_CARE,
2203 .trap_id = MLXSW_TRAP_ID_MMRP,
2206 .func = mlxsw_sp_rx_listener_func,
2207 .local_port = MLXSW_PORT_DONT_CARE,
2208 .trap_id = MLXSW_TRAP_ID_MVRP,
2211 .func = mlxsw_sp_rx_listener_func,
2212 .local_port = MLXSW_PORT_DONT_CARE,
2213 .trap_id = MLXSW_TRAP_ID_RPVST,
2216 .func = mlxsw_sp_rx_listener_func,
2217 .local_port = MLXSW_PORT_DONT_CARE,
2218 .trap_id = MLXSW_TRAP_ID_DHCP,
2221 .func = mlxsw_sp_rx_listener_func,
2222 .local_port = MLXSW_PORT_DONT_CARE,
2223 .trap_id = MLXSW_TRAP_ID_IGMP_QUERY,
2226 .func = mlxsw_sp_rx_listener_func,
2227 .local_port = MLXSW_PORT_DONT_CARE,
2228 .trap_id = MLXSW_TRAP_ID_IGMP_V1_REPORT,
2231 .func = mlxsw_sp_rx_listener_func,
2232 .local_port = MLXSW_PORT_DONT_CARE,
2233 .trap_id = MLXSW_TRAP_ID_IGMP_V2_REPORT,
2236 .func = mlxsw_sp_rx_listener_func,
2237 .local_port = MLXSW_PORT_DONT_CARE,
2238 .trap_id = MLXSW_TRAP_ID_IGMP_V2_LEAVE,
2241 .func = mlxsw_sp_rx_listener_func,
2242 .local_port = MLXSW_PORT_DONT_CARE,
2243 .trap_id = MLXSW_TRAP_ID_IGMP_V3_REPORT,
2247 static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
2249 char htgt_pl[MLXSW_REG_HTGT_LEN];
2250 char hpkt_pl[MLXSW_REG_HPKT_LEN];
2254 mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_RX);
2255 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl);
2259 mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_CTRL);
2260 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl);
2264 for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) {
2265 err = mlxsw_core_rx_listener_register(mlxsw_sp->core,
2266 &mlxsw_sp_rx_listener[i],
2269 goto err_rx_listener_register;
2271 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_TRAP_TO_CPU,
2272 mlxsw_sp_rx_listener[i].trap_id);
2273 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2275 goto err_rx_trap_set;
2280 mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
2281 &mlxsw_sp_rx_listener[i],
2283 err_rx_listener_register:
2284 for (i--; i >= 0; i--) {
2285 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD,
2286 mlxsw_sp_rx_listener[i].trap_id);
2287 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2289 mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
2290 &mlxsw_sp_rx_listener[i],
2296 static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp)
2298 char hpkt_pl[MLXSW_REG_HPKT_LEN];
2301 for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) {
2302 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD,
2303 mlxsw_sp_rx_listener[i].trap_id);
2304 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2306 mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
2307 &mlxsw_sp_rx_listener[i],
2312 static int __mlxsw_sp_flood_init(struct mlxsw_core *mlxsw_core,
2313 enum mlxsw_reg_sfgc_type type,
2314 enum mlxsw_reg_sfgc_bridge_type bridge_type)
2316 enum mlxsw_flood_table_type table_type;
2317 enum mlxsw_sp_flood_table flood_table;
2318 char sfgc_pl[MLXSW_REG_SFGC_LEN];
2320 if (bridge_type == MLXSW_REG_SFGC_BRIDGE_TYPE_VFID)
2321 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID;
2323 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST;
2325 if (type == MLXSW_REG_SFGC_TYPE_UNKNOWN_UNICAST)
2326 flood_table = MLXSW_SP_FLOOD_TABLE_UC;
2328 flood_table = MLXSW_SP_FLOOD_TABLE_BM;
2330 mlxsw_reg_sfgc_pack(sfgc_pl, type, bridge_type, table_type,
2332 return mlxsw_reg_write(mlxsw_core, MLXSW_REG(sfgc), sfgc_pl);
2335 static int mlxsw_sp_flood_init(struct mlxsw_sp *mlxsw_sp)
2339 for (type = 0; type < MLXSW_REG_SFGC_TYPE_MAX; type++) {
2340 if (type == MLXSW_REG_SFGC_TYPE_RESERVED)
2343 err = __mlxsw_sp_flood_init(mlxsw_sp->core, type,
2344 MLXSW_REG_SFGC_BRIDGE_TYPE_VFID);
2348 err = __mlxsw_sp_flood_init(mlxsw_sp->core, type,
2349 MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID);
2357 static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp)
2359 char slcr_pl[MLXSW_REG_SLCR_LEN];
2361 mlxsw_reg_slcr_pack(slcr_pl, MLXSW_REG_SLCR_LAG_HASH_SMAC |
2362 MLXSW_REG_SLCR_LAG_HASH_DMAC |
2363 MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE |
2364 MLXSW_REG_SLCR_LAG_HASH_VLANID |
2365 MLXSW_REG_SLCR_LAG_HASH_SIP |
2366 MLXSW_REG_SLCR_LAG_HASH_DIP |
2367 MLXSW_REG_SLCR_LAG_HASH_SPORT |
2368 MLXSW_REG_SLCR_LAG_HASH_DPORT |
2369 MLXSW_REG_SLCR_LAG_HASH_IPPROTO);
2370 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcr), slcr_pl);
2373 static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core,
2374 const struct mlxsw_bus_info *mlxsw_bus_info)
2376 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2379 mlxsw_sp->core = mlxsw_core;
2380 mlxsw_sp->bus_info = mlxsw_bus_info;
2381 INIT_LIST_HEAD(&mlxsw_sp->port_vfids.list);
2382 INIT_LIST_HEAD(&mlxsw_sp->br_vfids.list);
2383 INIT_LIST_HEAD(&mlxsw_sp->br_mids.list);
2385 err = mlxsw_sp_base_mac_get(mlxsw_sp);
2387 dev_err(mlxsw_sp->bus_info->dev, "Failed to get base mac\n");
2391 err = mlxsw_sp_ports_create(mlxsw_sp);
2393 dev_err(mlxsw_sp->bus_info->dev, "Failed to create ports\n");
2397 err = mlxsw_sp_event_register(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
2399 dev_err(mlxsw_sp->bus_info->dev, "Failed to register for PUDE events\n");
2400 goto err_event_register;
2403 err = mlxsw_sp_traps_init(mlxsw_sp);
2405 dev_err(mlxsw_sp->bus_info->dev, "Failed to set traps for RX\n");
2406 goto err_rx_listener_register;
2409 err = mlxsw_sp_flood_init(mlxsw_sp);
2411 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize flood tables\n");
2412 goto err_flood_init;
2415 err = mlxsw_sp_buffers_init(mlxsw_sp);
2417 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize buffers\n");
2418 goto err_buffers_init;
2421 err = mlxsw_sp_lag_init(mlxsw_sp);
2423 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize LAG\n");
2427 err = mlxsw_sp_switchdev_init(mlxsw_sp);
2429 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize switchdev\n");
2430 goto err_switchdev_init;
2437 mlxsw_sp_buffers_fini(mlxsw_sp);
2440 mlxsw_sp_traps_fini(mlxsw_sp);
2441 err_rx_listener_register:
2442 mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
2444 mlxsw_sp_ports_remove(mlxsw_sp);
2448 static void mlxsw_sp_fini(struct mlxsw_core *mlxsw_core)
2450 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2452 mlxsw_sp_switchdev_fini(mlxsw_sp);
2453 mlxsw_sp_buffers_fini(mlxsw_sp);
2454 mlxsw_sp_traps_fini(mlxsw_sp);
2455 mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
2456 mlxsw_sp_ports_remove(mlxsw_sp);
2459 static struct mlxsw_config_profile mlxsw_sp_config_profile = {
2460 .used_max_vepa_channels = 1,
2461 .max_vepa_channels = 0,
2463 .max_lag = MLXSW_SP_LAG_MAX,
2464 .used_max_port_per_lag = 1,
2465 .max_port_per_lag = MLXSW_SP_PORT_PER_LAG_MAX,
2467 .max_mid = MLXSW_SP_MID_MAX,
2470 .used_max_system_port = 1,
2471 .max_system_port = 64,
2472 .used_max_vlan_groups = 1,
2473 .max_vlan_groups = 127,
2474 .used_max_regions = 1,
2476 .used_flood_tables = 1,
2477 .used_flood_mode = 1,
2479 .max_fid_offset_flood_tables = 2,
2480 .fid_offset_flood_table_size = VLAN_N_VID - 1,
2481 .max_fid_flood_tables = 2,
2482 .fid_flood_table_size = MLXSW_SP_VFID_MAX,
2483 .used_max_ib_mc = 1,
2490 .type = MLXSW_PORT_SWID_TYPE_ETH,
2495 static struct mlxsw_driver mlxsw_sp_driver = {
2496 .kind = MLXSW_DEVICE_KIND_SPECTRUM,
2497 .owner = THIS_MODULE,
2498 .priv_size = sizeof(struct mlxsw_sp),
2499 .init = mlxsw_sp_init,
2500 .fini = mlxsw_sp_fini,
2501 .port_split = mlxsw_sp_port_split,
2502 .port_unsplit = mlxsw_sp_port_unsplit,
2503 .sb_pool_get = mlxsw_sp_sb_pool_get,
2504 .sb_pool_set = mlxsw_sp_sb_pool_set,
2505 .sb_port_pool_get = mlxsw_sp_sb_port_pool_get,
2506 .sb_port_pool_set = mlxsw_sp_sb_port_pool_set,
2507 .sb_tc_pool_bind_get = mlxsw_sp_sb_tc_pool_bind_get,
2508 .sb_tc_pool_bind_set = mlxsw_sp_sb_tc_pool_bind_set,
2509 .sb_occ_snapshot = mlxsw_sp_sb_occ_snapshot,
2510 .sb_occ_max_clear = mlxsw_sp_sb_occ_max_clear,
2511 .sb_occ_port_pool_get = mlxsw_sp_sb_occ_port_pool_get,
2512 .sb_occ_tc_port_bind_get = mlxsw_sp_sb_occ_tc_port_bind_get,
2513 .txhdr_construct = mlxsw_sp_txhdr_construct,
2514 .txhdr_len = MLXSW_TXHDR_LEN,
2515 .profile = &mlxsw_sp_config_profile,
2519 mlxsw_sp_port_fdb_flush_by_port(const struct mlxsw_sp_port *mlxsw_sp_port)
2521 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2522 char sfdf_pl[MLXSW_REG_SFDF_LEN];
2524 mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_PORT);
2525 mlxsw_reg_sfdf_system_port_set(sfdf_pl, mlxsw_sp_port->local_port);
2527 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
2531 mlxsw_sp_port_fdb_flush_by_port_fid(const struct mlxsw_sp_port *mlxsw_sp_port,
2534 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2535 char sfdf_pl[MLXSW_REG_SFDF_LEN];
2537 mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_PORT_AND_FID);
2538 mlxsw_reg_sfdf_fid_set(sfdf_pl, fid);
2539 mlxsw_reg_sfdf_port_fid_system_port_set(sfdf_pl,
2540 mlxsw_sp_port->local_port);
2542 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
2546 mlxsw_sp_port_fdb_flush_by_lag_id(const struct mlxsw_sp_port *mlxsw_sp_port)
2548 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2549 char sfdf_pl[MLXSW_REG_SFDF_LEN];
2551 mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_LAG);
2552 mlxsw_reg_sfdf_lag_id_set(sfdf_pl, mlxsw_sp_port->lag_id);
2554 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
2558 mlxsw_sp_port_fdb_flush_by_lag_id_fid(const struct mlxsw_sp_port *mlxsw_sp_port,
2561 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2562 char sfdf_pl[MLXSW_REG_SFDF_LEN];
2564 mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_LAG_AND_FID);
2565 mlxsw_reg_sfdf_fid_set(sfdf_pl, fid);
2566 mlxsw_reg_sfdf_lag_fid_lag_id_set(sfdf_pl, mlxsw_sp_port->lag_id);
2568 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
2572 __mlxsw_sp_port_fdb_flush(const struct mlxsw_sp_port *mlxsw_sp_port)
2574 int err, last_err = 0;
2577 for (vid = 1; vid < VLAN_N_VID - 1; vid++) {
2578 err = mlxsw_sp_port_fdb_flush_by_port_fid(mlxsw_sp_port, vid);
2587 __mlxsw_sp_port_fdb_flush_lagged(const struct mlxsw_sp_port *mlxsw_sp_port)
2589 int err, last_err = 0;
2592 for (vid = 1; vid < VLAN_N_VID - 1; vid++) {
2593 err = mlxsw_sp_port_fdb_flush_by_lag_id_fid(mlxsw_sp_port, vid);
2601 static int mlxsw_sp_port_fdb_flush(struct mlxsw_sp_port *mlxsw_sp_port)
2603 if (!list_empty(&mlxsw_sp_port->vports_list))
2604 if (mlxsw_sp_port->lagged)
2605 return __mlxsw_sp_port_fdb_flush_lagged(mlxsw_sp_port);
2607 return __mlxsw_sp_port_fdb_flush(mlxsw_sp_port);
2609 if (mlxsw_sp_port->lagged)
2610 return mlxsw_sp_port_fdb_flush_by_lag_id(mlxsw_sp_port);
2612 return mlxsw_sp_port_fdb_flush_by_port(mlxsw_sp_port);
2615 static int mlxsw_sp_vport_fdb_flush(struct mlxsw_sp_port *mlxsw_sp_vport)
2617 u16 vfid = mlxsw_sp_vport_vfid_get(mlxsw_sp_vport);
2618 u16 fid = mlxsw_sp_vfid_to_fid(vfid);
2620 if (mlxsw_sp_vport->lagged)
2621 return mlxsw_sp_port_fdb_flush_by_lag_id_fid(mlxsw_sp_vport,
2624 return mlxsw_sp_port_fdb_flush_by_port_fid(mlxsw_sp_vport, fid);
2627 static bool mlxsw_sp_port_dev_check(const struct net_device *dev)
2629 return dev->netdev_ops == &mlxsw_sp_port_netdev_ops;
2632 static int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port)
2634 struct net_device *dev = mlxsw_sp_port->dev;
2637 /* When port is not bridged untagged packets are tagged with
2638 * PVID=VID=1, thereby creating an implicit VLAN interface in
2639 * the device. Remove it and let bridge code take care of its
2642 err = mlxsw_sp_port_kill_vid(dev, 0, 1);
2646 mlxsw_sp_port->learning = 1;
2647 mlxsw_sp_port->learning_sync = 1;
2648 mlxsw_sp_port->uc_flood = 1;
2649 mlxsw_sp_port->bridged = 1;
2654 static int mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port,
2657 struct net_device *dev = mlxsw_sp_port->dev;
2659 if (flush_fdb && mlxsw_sp_port_fdb_flush(mlxsw_sp_port))
2660 netdev_err(mlxsw_sp_port->dev, "Failed to flush FDB\n");
2662 mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
2664 mlxsw_sp_port->learning = 0;
2665 mlxsw_sp_port->learning_sync = 0;
2666 mlxsw_sp_port->uc_flood = 0;
2667 mlxsw_sp_port->bridged = 0;
2669 /* Add implicit VLAN interface in the device, so that untagged
2670 * packets will be classified to the default vFID.
2672 return mlxsw_sp_port_add_vid(dev, 0, 1);
2675 static bool mlxsw_sp_master_bridge_check(struct mlxsw_sp *mlxsw_sp,
2676 struct net_device *br_dev)
2678 return !mlxsw_sp->master_bridge.dev ||
2679 mlxsw_sp->master_bridge.dev == br_dev;
2682 static void mlxsw_sp_master_bridge_inc(struct mlxsw_sp *mlxsw_sp,
2683 struct net_device *br_dev)
2685 mlxsw_sp->master_bridge.dev = br_dev;
2686 mlxsw_sp->master_bridge.ref_count++;
2689 static void mlxsw_sp_master_bridge_dec(struct mlxsw_sp *mlxsw_sp,
2690 struct net_device *br_dev)
2692 if (--mlxsw_sp->master_bridge.ref_count == 0)
2693 mlxsw_sp->master_bridge.dev = NULL;
2696 static int mlxsw_sp_lag_create(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
2698 char sldr_pl[MLXSW_REG_SLDR_LEN];
2700 mlxsw_reg_sldr_lag_create_pack(sldr_pl, lag_id);
2701 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
2704 static int mlxsw_sp_lag_destroy(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
2706 char sldr_pl[MLXSW_REG_SLDR_LEN];
2708 mlxsw_reg_sldr_lag_destroy_pack(sldr_pl, lag_id);
2709 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
2712 static int mlxsw_sp_lag_col_port_add(struct mlxsw_sp_port *mlxsw_sp_port,
2713 u16 lag_id, u8 port_index)
2715 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2716 char slcor_pl[MLXSW_REG_SLCOR_LEN];
2718 mlxsw_reg_slcor_port_add_pack(slcor_pl, mlxsw_sp_port->local_port,
2719 lag_id, port_index);
2720 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
2723 static int mlxsw_sp_lag_col_port_remove(struct mlxsw_sp_port *mlxsw_sp_port,
2726 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2727 char slcor_pl[MLXSW_REG_SLCOR_LEN];
2729 mlxsw_reg_slcor_port_remove_pack(slcor_pl, mlxsw_sp_port->local_port,
2731 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
2734 static int mlxsw_sp_lag_col_port_enable(struct mlxsw_sp_port *mlxsw_sp_port,
2737 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2738 char slcor_pl[MLXSW_REG_SLCOR_LEN];
2740 mlxsw_reg_slcor_col_enable_pack(slcor_pl, mlxsw_sp_port->local_port,
2742 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
2745 static int mlxsw_sp_lag_col_port_disable(struct mlxsw_sp_port *mlxsw_sp_port,
2748 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2749 char slcor_pl[MLXSW_REG_SLCOR_LEN];
2751 mlxsw_reg_slcor_col_disable_pack(slcor_pl, mlxsw_sp_port->local_port,
2753 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
2756 static int mlxsw_sp_lag_index_get(struct mlxsw_sp *mlxsw_sp,
2757 struct net_device *lag_dev,
2760 struct mlxsw_sp_upper *lag;
2761 int free_lag_id = -1;
2764 for (i = 0; i < MLXSW_SP_LAG_MAX; i++) {
2765 lag = mlxsw_sp_lag_get(mlxsw_sp, i);
2766 if (lag->ref_count) {
2767 if (lag->dev == lag_dev) {
2771 } else if (free_lag_id < 0) {
2775 if (free_lag_id < 0)
2777 *p_lag_id = free_lag_id;
2782 mlxsw_sp_master_lag_check(struct mlxsw_sp *mlxsw_sp,
2783 struct net_device *lag_dev,
2784 struct netdev_lag_upper_info *lag_upper_info)
2788 if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0)
2790 if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH)
2795 static int mlxsw_sp_port_lag_index_get(struct mlxsw_sp *mlxsw_sp,
2796 u16 lag_id, u8 *p_port_index)
2800 for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) {
2801 if (!mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i)) {
2809 static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
2810 struct net_device *lag_dev)
2812 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2813 struct mlxsw_sp_upper *lag;
2818 err = mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id);
2821 lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id);
2822 if (!lag->ref_count) {
2823 err = mlxsw_sp_lag_create(mlxsw_sp, lag_id);
2829 err = mlxsw_sp_port_lag_index_get(mlxsw_sp, lag_id, &port_index);
2832 err = mlxsw_sp_lag_col_port_add(mlxsw_sp_port, lag_id, port_index);
2834 goto err_col_port_add;
2835 err = mlxsw_sp_lag_col_port_enable(mlxsw_sp_port, lag_id);
2837 goto err_col_port_enable;
2839 mlxsw_core_lag_mapping_set(mlxsw_sp->core, lag_id, port_index,
2840 mlxsw_sp_port->local_port);
2841 mlxsw_sp_port->lag_id = lag_id;
2842 mlxsw_sp_port->lagged = 1;
2846 err_col_port_enable:
2847 mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id);
2849 if (!lag->ref_count)
2850 mlxsw_sp_lag_destroy(mlxsw_sp, lag_id);
2854 static int mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_vport,
2855 struct net_device *br_dev,
2858 static int mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port,
2859 struct net_device *lag_dev)
2861 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2862 struct mlxsw_sp_port *mlxsw_sp_vport;
2863 struct mlxsw_sp_upper *lag;
2864 u16 lag_id = mlxsw_sp_port->lag_id;
2867 if (!mlxsw_sp_port->lagged)
2869 lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id);
2870 WARN_ON(lag->ref_count == 0);
2872 err = mlxsw_sp_lag_col_port_disable(mlxsw_sp_port, lag_id);
2875 err = mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id);
2879 /* In case we leave a LAG device that has bridges built on top,
2880 * then their teardown sequence is never issued and we need to
2881 * invoke the necessary cleanup routines ourselves.
2883 list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list,
2885 struct net_device *br_dev;
2887 if (!mlxsw_sp_vport->bridged)
2890 br_dev = mlxsw_sp_vport_br_get(mlxsw_sp_vport);
2891 mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport, br_dev, false);
2894 if (mlxsw_sp_port->bridged) {
2895 mlxsw_sp_port_active_vlans_del(mlxsw_sp_port);
2896 mlxsw_sp_port_bridge_leave(mlxsw_sp_port, false);
2897 mlxsw_sp_master_bridge_dec(mlxsw_sp, NULL);
2900 if (lag->ref_count == 1) {
2901 if (mlxsw_sp_port_fdb_flush_by_lag_id(mlxsw_sp_port))
2902 netdev_err(mlxsw_sp_port->dev, "Failed to flush FDB\n");
2903 err = mlxsw_sp_lag_destroy(mlxsw_sp, lag_id);
2908 mlxsw_core_lag_mapping_clear(mlxsw_sp->core, lag_id,
2909 mlxsw_sp_port->local_port);
2910 mlxsw_sp_port->lagged = 0;
2915 static int mlxsw_sp_lag_dist_port_add(struct mlxsw_sp_port *mlxsw_sp_port,
2918 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2919 char sldr_pl[MLXSW_REG_SLDR_LEN];
2921 mlxsw_reg_sldr_lag_add_port_pack(sldr_pl, lag_id,
2922 mlxsw_sp_port->local_port);
2923 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
2926 static int mlxsw_sp_lag_dist_port_remove(struct mlxsw_sp_port *mlxsw_sp_port,
2929 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2930 char sldr_pl[MLXSW_REG_SLDR_LEN];
2932 mlxsw_reg_sldr_lag_remove_port_pack(sldr_pl, lag_id,
2933 mlxsw_sp_port->local_port);
2934 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
2937 static int mlxsw_sp_port_lag_tx_en_set(struct mlxsw_sp_port *mlxsw_sp_port,
2938 bool lag_tx_enabled)
2941 return mlxsw_sp_lag_dist_port_add(mlxsw_sp_port,
2942 mlxsw_sp_port->lag_id);
2944 return mlxsw_sp_lag_dist_port_remove(mlxsw_sp_port,
2945 mlxsw_sp_port->lag_id);
2948 static int mlxsw_sp_port_lag_changed(struct mlxsw_sp_port *mlxsw_sp_port,
2949 struct netdev_lag_lower_state_info *info)
2951 return mlxsw_sp_port_lag_tx_en_set(mlxsw_sp_port, info->tx_enabled);
2954 static int mlxsw_sp_port_vlan_link(struct mlxsw_sp_port *mlxsw_sp_port,
2955 struct net_device *vlan_dev)
2957 struct mlxsw_sp_port *mlxsw_sp_vport;
2958 u16 vid = vlan_dev_vlan_id(vlan_dev);
2960 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
2961 if (!mlxsw_sp_vport) {
2962 WARN_ON(!mlxsw_sp_vport);
2966 mlxsw_sp_vport->dev = vlan_dev;
2971 static int mlxsw_sp_port_vlan_unlink(struct mlxsw_sp_port *mlxsw_sp_port,
2972 struct net_device *vlan_dev)
2974 struct mlxsw_sp_port *mlxsw_sp_vport;
2975 u16 vid = vlan_dev_vlan_id(vlan_dev);
2977 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
2978 if (!mlxsw_sp_vport) {
2979 WARN_ON(!mlxsw_sp_vport);
2983 /* When removing a VLAN device while still bridged we should first
2984 * remove it from the bridge, as we receive the bridge's notification
2985 * when the vPort is already gone.
2987 if (mlxsw_sp_vport->bridged) {
2988 struct net_device *br_dev;
2990 br_dev = mlxsw_sp_vport_br_get(mlxsw_sp_vport);
2991 mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport, br_dev, true);
2994 mlxsw_sp_vport->dev = mlxsw_sp_port->dev;
2999 static int mlxsw_sp_netdevice_port_upper_event(struct net_device *dev,
3000 unsigned long event, void *ptr)
3002 struct netdev_notifier_changeupper_info *info;
3003 struct mlxsw_sp_port *mlxsw_sp_port;
3004 struct net_device *upper_dev;
3005 struct mlxsw_sp *mlxsw_sp;
3008 mlxsw_sp_port = netdev_priv(dev);
3009 mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3013 case NETDEV_PRECHANGEUPPER:
3014 upper_dev = info->upper_dev;
3015 if (!info->master || !info->linking)
3017 /* HW limitation forbids to put ports to multiple bridges. */
3018 if (netif_is_bridge_master(upper_dev) &&
3019 !mlxsw_sp_master_bridge_check(mlxsw_sp, upper_dev))
3021 if (netif_is_lag_master(upper_dev) &&
3022 !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev,
3026 case NETDEV_CHANGEUPPER:
3027 upper_dev = info->upper_dev;
3028 if (is_vlan_dev(upper_dev)) {
3029 if (info->linking) {
3030 err = mlxsw_sp_port_vlan_link(mlxsw_sp_port,
3033 netdev_err(dev, "Failed to link VLAN device\n");
3037 err = mlxsw_sp_port_vlan_unlink(mlxsw_sp_port,
3040 netdev_err(dev, "Failed to unlink VLAN device\n");
3044 } else if (netif_is_bridge_master(upper_dev)) {
3045 if (info->linking) {
3046 err = mlxsw_sp_port_bridge_join(mlxsw_sp_port);
3048 netdev_err(dev, "Failed to join bridge\n");
3051 mlxsw_sp_master_bridge_inc(mlxsw_sp, upper_dev);
3053 err = mlxsw_sp_port_bridge_leave(mlxsw_sp_port,
3055 mlxsw_sp_master_bridge_dec(mlxsw_sp, upper_dev);
3057 netdev_err(dev, "Failed to leave bridge\n");
3061 } else if (netif_is_lag_master(upper_dev)) {
3062 if (info->linking) {
3063 err = mlxsw_sp_port_lag_join(mlxsw_sp_port,
3066 netdev_err(dev, "Failed to join link aggregation\n");
3070 err = mlxsw_sp_port_lag_leave(mlxsw_sp_port,
3073 netdev_err(dev, "Failed to leave link aggregation\n");
3084 static int mlxsw_sp_netdevice_port_lower_event(struct net_device *dev,
3085 unsigned long event, void *ptr)
3087 struct netdev_notifier_changelowerstate_info *info;
3088 struct mlxsw_sp_port *mlxsw_sp_port;
3091 mlxsw_sp_port = netdev_priv(dev);
3095 case NETDEV_CHANGELOWERSTATE:
3096 if (netif_is_lag_port(dev) && mlxsw_sp_port->lagged) {
3097 err = mlxsw_sp_port_lag_changed(mlxsw_sp_port,
3098 info->lower_state_info);
3100 netdev_err(dev, "Failed to reflect link aggregation lower state change\n");
3108 static int mlxsw_sp_netdevice_port_event(struct net_device *dev,
3109 unsigned long event, void *ptr)
3112 case NETDEV_PRECHANGEUPPER:
3113 case NETDEV_CHANGEUPPER:
3114 return mlxsw_sp_netdevice_port_upper_event(dev, event, ptr);
3115 case NETDEV_CHANGELOWERSTATE:
3116 return mlxsw_sp_netdevice_port_lower_event(dev, event, ptr);
3122 static int mlxsw_sp_netdevice_lag_event(struct net_device *lag_dev,
3123 unsigned long event, void *ptr)
3125 struct net_device *dev;
3126 struct list_head *iter;
3129 netdev_for_each_lower_dev(lag_dev, dev, iter) {
3130 if (mlxsw_sp_port_dev_check(dev)) {
3131 ret = mlxsw_sp_netdevice_port_event(dev, event, ptr);
3132 if (ret == NOTIFY_BAD)
3140 static struct mlxsw_sp_vfid *
3141 mlxsw_sp_br_vfid_find(const struct mlxsw_sp *mlxsw_sp,
3142 const struct net_device *br_dev)
3144 struct mlxsw_sp_vfid *vfid;
3146 list_for_each_entry(vfid, &mlxsw_sp->br_vfids.list, list) {
3147 if (vfid->br_dev == br_dev)
3154 static u16 mlxsw_sp_vfid_to_br_vfid(u16 vfid)
3156 return vfid - MLXSW_SP_VFID_PORT_MAX;
3159 static u16 mlxsw_sp_br_vfid_to_vfid(u16 br_vfid)
3161 return MLXSW_SP_VFID_PORT_MAX + br_vfid;
3164 static u16 mlxsw_sp_avail_br_vfid_get(const struct mlxsw_sp *mlxsw_sp)
3166 return find_first_zero_bit(mlxsw_sp->br_vfids.mapped,
3167 MLXSW_SP_VFID_BR_MAX);
3170 static struct mlxsw_sp_vfid *mlxsw_sp_br_vfid_create(struct mlxsw_sp *mlxsw_sp,
3171 struct net_device *br_dev)
3173 struct device *dev = mlxsw_sp->bus_info->dev;
3174 struct mlxsw_sp_vfid *vfid;
3178 n_vfid = mlxsw_sp_br_vfid_to_vfid(mlxsw_sp_avail_br_vfid_get(mlxsw_sp));
3179 if (n_vfid == MLXSW_SP_VFID_MAX) {
3180 dev_err(dev, "No available vFIDs\n");
3181 return ERR_PTR(-ERANGE);
3184 err = __mlxsw_sp_vfid_create(mlxsw_sp, n_vfid);
3186 dev_err(dev, "Failed to create vFID=%d\n", n_vfid);
3187 return ERR_PTR(err);
3190 vfid = kzalloc(sizeof(*vfid), GFP_KERNEL);
3192 goto err_allocate_vfid;
3194 vfid->vfid = n_vfid;
3195 vfid->br_dev = br_dev;
3197 list_add(&vfid->list, &mlxsw_sp->br_vfids.list);
3198 set_bit(mlxsw_sp_vfid_to_br_vfid(n_vfid), mlxsw_sp->br_vfids.mapped);
3203 __mlxsw_sp_vfid_destroy(mlxsw_sp, n_vfid);
3204 return ERR_PTR(-ENOMEM);
3207 static void mlxsw_sp_br_vfid_destroy(struct mlxsw_sp *mlxsw_sp,
3208 struct mlxsw_sp_vfid *vfid)
3210 u16 br_vfid = mlxsw_sp_vfid_to_br_vfid(vfid->vfid);
3212 clear_bit(br_vfid, mlxsw_sp->br_vfids.mapped);
3213 list_del(&vfid->list);
3215 __mlxsw_sp_vfid_destroy(mlxsw_sp, vfid->vfid);
3220 static int mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_vport,
3221 struct net_device *br_dev,
3224 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3225 u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
3226 struct net_device *dev = mlxsw_sp_vport->dev;
3227 struct mlxsw_sp_vfid *vfid, *new_vfid;
3230 vfid = mlxsw_sp_br_vfid_find(mlxsw_sp, br_dev);
3236 /* We need a vFID to go back to after leaving the bridge's vFID. */
3237 new_vfid = mlxsw_sp_vfid_find(mlxsw_sp, vid);
3239 new_vfid = mlxsw_sp_vfid_create(mlxsw_sp, vid);
3240 if (IS_ERR(new_vfid)) {
3241 netdev_err(dev, "Failed to create vFID for VID=%d\n",
3243 return PTR_ERR(new_vfid);
3247 /* Invalidate existing {Port, VID} to vFID mapping and create a new
3248 * one for the new vFID.
3250 err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport,
3251 MLXSW_REG_SVFA_MT_PORT_VID_TO_FID,
3253 mlxsw_sp_vfid_to_fid(vfid->vfid),
3256 netdev_err(dev, "Failed to invalidate {Port, VID} to vFID=%d mapping\n",
3258 goto err_port_vid_to_fid_invalidate;
3261 err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport,
3262 MLXSW_REG_SVFA_MT_PORT_VID_TO_FID,
3264 mlxsw_sp_vfid_to_fid(new_vfid->vfid),
3267 netdev_err(dev, "Failed to map {Port, VID} to vFID=%d\n",
3269 goto err_port_vid_to_fid_validate;
3272 err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false);
3274 netdev_err(dev, "Failed to disable learning\n");
3275 goto err_port_vid_learning_set;
3278 err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, false,
3281 netdev_err(dev, "Failed clear to clear flooding\n");
3282 goto err_vport_flood_set;
3285 err = mlxsw_sp_port_stp_state_set(mlxsw_sp_vport, vid,
3286 MLXSW_REG_SPMS_STATE_FORWARDING);
3288 netdev_err(dev, "Failed to set STP state\n");
3289 goto err_port_stp_state_set;
3292 if (flush_fdb && mlxsw_sp_vport_fdb_flush(mlxsw_sp_vport))
3293 netdev_err(dev, "Failed to flush FDB\n");
3295 /* Switch between the vFIDs and destroy the old one if needed. */
3296 new_vfid->nr_vports++;
3297 mlxsw_sp_vport->vport.vfid = new_vfid;
3299 if (!vfid->nr_vports)
3300 mlxsw_sp_br_vfid_destroy(mlxsw_sp, vfid);
3302 mlxsw_sp_vport->learning = 0;
3303 mlxsw_sp_vport->learning_sync = 0;
3304 mlxsw_sp_vport->uc_flood = 0;
3305 mlxsw_sp_vport->bridged = 0;
3309 err_port_stp_state_set:
3310 err_vport_flood_set:
3311 err_port_vid_learning_set:
3312 err_port_vid_to_fid_validate:
3313 err_port_vid_to_fid_invalidate:
3314 /* Rollback vFID only if new. */
3315 if (!new_vfid->nr_vports)
3316 mlxsw_sp_vfid_destroy(mlxsw_sp, new_vfid);
3320 static int mlxsw_sp_vport_bridge_join(struct mlxsw_sp_port *mlxsw_sp_vport,
3321 struct net_device *br_dev)
3323 struct mlxsw_sp_vfid *old_vfid = mlxsw_sp_vport->vport.vfid;
3324 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3325 u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
3326 struct net_device *dev = mlxsw_sp_vport->dev;
3327 struct mlxsw_sp_vfid *vfid;
3330 vfid = mlxsw_sp_br_vfid_find(mlxsw_sp, br_dev);
3332 vfid = mlxsw_sp_br_vfid_create(mlxsw_sp, br_dev);
3334 netdev_err(dev, "Failed to create bridge vFID\n");
3335 return PTR_ERR(vfid);
3339 err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, true, false);
3341 netdev_err(dev, "Failed to setup flooding for vFID=%d\n",
3343 goto err_port_flood_set;
3346 err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true);
3348 netdev_err(dev, "Failed to enable learning\n");
3349 goto err_port_vid_learning_set;
3352 /* We need to invalidate existing {Port, VID} to vFID mapping and
3353 * create a new one for the bridge's vFID.
3355 err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport,
3356 MLXSW_REG_SVFA_MT_PORT_VID_TO_FID,
3358 mlxsw_sp_vfid_to_fid(old_vfid->vfid),
3361 netdev_err(dev, "Failed to invalidate {Port, VID} to vFID=%d mapping\n",
3363 goto err_port_vid_to_fid_invalidate;
3366 err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport,
3367 MLXSW_REG_SVFA_MT_PORT_VID_TO_FID,
3369 mlxsw_sp_vfid_to_fid(vfid->vfid),
3372 netdev_err(dev, "Failed to map {Port, VID} to vFID=%d\n",
3374 goto err_port_vid_to_fid_validate;
3377 /* Switch between the vFIDs and destroy the old one if needed. */
3379 mlxsw_sp_vport->vport.vfid = vfid;
3380 old_vfid->nr_vports--;
3381 if (!old_vfid->nr_vports)
3382 mlxsw_sp_vfid_destroy(mlxsw_sp, old_vfid);
3384 mlxsw_sp_vport->learning = 1;
3385 mlxsw_sp_vport->learning_sync = 1;
3386 mlxsw_sp_vport->uc_flood = 1;
3387 mlxsw_sp_vport->bridged = 1;
3391 err_port_vid_to_fid_validate:
3392 mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport,
3393 MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, false,
3394 mlxsw_sp_vfid_to_fid(old_vfid->vfid), vid);
3395 err_port_vid_to_fid_invalidate:
3396 mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false);
3397 err_port_vid_learning_set:
3398 mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, false, false);
3400 if (!vfid->nr_vports)
3401 mlxsw_sp_br_vfid_destroy(mlxsw_sp, vfid);
3406 mlxsw_sp_port_master_bridge_check(const struct mlxsw_sp_port *mlxsw_sp_port,
3407 const struct net_device *br_dev)
3409 struct mlxsw_sp_port *mlxsw_sp_vport;
3411 list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list,
3413 if (mlxsw_sp_vport_br_get(mlxsw_sp_vport) == br_dev)
3420 static int mlxsw_sp_netdevice_vport_event(struct net_device *dev,
3421 unsigned long event, void *ptr,
3424 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
3425 struct netdev_notifier_changeupper_info *info = ptr;
3426 struct mlxsw_sp_port *mlxsw_sp_vport;
3427 struct net_device *upper_dev;
3430 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
3433 case NETDEV_PRECHANGEUPPER:
3434 upper_dev = info->upper_dev;
3435 if (!info->master || !info->linking)
3437 if (!netif_is_bridge_master(upper_dev))
3439 /* We can't have multiple VLAN interfaces configured on
3440 * the same port and being members in the same bridge.
3442 if (!mlxsw_sp_port_master_bridge_check(mlxsw_sp_port,
3446 case NETDEV_CHANGEUPPER:
3447 upper_dev = info->upper_dev;
3450 if (info->linking) {
3451 if (!mlxsw_sp_vport) {
3452 WARN_ON(!mlxsw_sp_vport);
3455 err = mlxsw_sp_vport_bridge_join(mlxsw_sp_vport,
3458 netdev_err(dev, "Failed to join bridge\n");
3462 /* We ignore bridge's unlinking notifications if vPort
3463 * is gone, since we already left the bridge when the
3464 * VLAN device was unlinked from the real device.
3466 if (!mlxsw_sp_vport)
3468 err = mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport,
3471 netdev_err(dev, "Failed to leave bridge\n");
3480 static int mlxsw_sp_netdevice_lag_vport_event(struct net_device *lag_dev,
3481 unsigned long event, void *ptr,
3484 struct net_device *dev;
3485 struct list_head *iter;
3488 netdev_for_each_lower_dev(lag_dev, dev, iter) {
3489 if (mlxsw_sp_port_dev_check(dev)) {
3490 ret = mlxsw_sp_netdevice_vport_event(dev, event, ptr,
3492 if (ret == NOTIFY_BAD)
3500 static int mlxsw_sp_netdevice_vlan_event(struct net_device *vlan_dev,
3501 unsigned long event, void *ptr)
3503 struct net_device *real_dev = vlan_dev_real_dev(vlan_dev);
3504 u16 vid = vlan_dev_vlan_id(vlan_dev);
3506 if (mlxsw_sp_port_dev_check(real_dev))
3507 return mlxsw_sp_netdevice_vport_event(real_dev, event, ptr,
3509 else if (netif_is_lag_master(real_dev))
3510 return mlxsw_sp_netdevice_lag_vport_event(real_dev, event, ptr,
3516 static int mlxsw_sp_netdevice_event(struct notifier_block *unused,
3517 unsigned long event, void *ptr)
3519 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3521 if (mlxsw_sp_port_dev_check(dev))
3522 return mlxsw_sp_netdevice_port_event(dev, event, ptr);
3524 if (netif_is_lag_master(dev))
3525 return mlxsw_sp_netdevice_lag_event(dev, event, ptr);
3527 if (is_vlan_dev(dev))
3528 return mlxsw_sp_netdevice_vlan_event(dev, event, ptr);
3533 static struct notifier_block mlxsw_sp_netdevice_nb __read_mostly = {
3534 .notifier_call = mlxsw_sp_netdevice_event,
3537 static int __init mlxsw_sp_module_init(void)
3541 register_netdevice_notifier(&mlxsw_sp_netdevice_nb);
3542 err = mlxsw_core_driver_register(&mlxsw_sp_driver);
3544 goto err_core_driver_register;
3547 err_core_driver_register:
3548 unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb);
3552 static void __exit mlxsw_sp_module_exit(void)
3554 mlxsw_core_driver_unregister(&mlxsw_sp_driver);
3555 unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb);
3558 module_init(mlxsw_sp_module_init);
3559 module_exit(mlxsw_sp_module_exit);
3561 MODULE_LICENSE("Dual BSD/GPL");
3562 MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>");
3563 MODULE_DESCRIPTION("Mellanox Spectrum driver");
3564 MODULE_MLXSW_DRIVER_ALIAS(MLXSW_DEVICE_KIND_SPECTRUM);