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
*mlxsw_sp
, u8 local_port
,
253 char pspa_pl
[MLXSW_REG_PSPA_LEN
];
255 mlxsw_reg_pspa_pack(pspa_pl
, swid
, local_port
);
256 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(pspa
), pspa_pl
);
259 static int mlxsw_sp_port_swid_set(struct mlxsw_sp_port
*mlxsw_sp_port
, u8 swid
)
261 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
263 return __mlxsw_sp_port_swid_set(mlxsw_sp
, mlxsw_sp_port
->local_port
,
267 static int mlxsw_sp_port_vp_mode_set(struct mlxsw_sp_port
*mlxsw_sp_port
,
270 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
271 char svpe_pl
[MLXSW_REG_SVPE_LEN
];
273 mlxsw_reg_svpe_pack(svpe_pl
, mlxsw_sp_port
->local_port
, enable
);
274 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(svpe
), svpe_pl
);
277 int mlxsw_sp_port_vid_to_fid_set(struct mlxsw_sp_port
*mlxsw_sp_port
,
278 enum mlxsw_reg_svfa_mt mt
, bool valid
, u16 fid
,
281 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
282 char svfa_pl
[MLXSW_REG_SVFA_LEN
];
284 mlxsw_reg_svfa_pack(svfa_pl
, mlxsw_sp_port
->local_port
, mt
, valid
,
286 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(svfa
), svfa_pl
);
289 static int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port
*mlxsw_sp_port
,
290 u16 vid
, bool learn_enable
)
292 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
296 spvmlr_pl
= kmalloc(MLXSW_REG_SPVMLR_LEN
, GFP_KERNEL
);
299 mlxsw_reg_spvmlr_pack(spvmlr_pl
, mlxsw_sp_port
->local_port
, vid
, vid
,
301 err
= mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(spvmlr
), spvmlr_pl
);
307 mlxsw_sp_port_system_port_mapping_set(struct mlxsw_sp_port
*mlxsw_sp_port
)
309 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
310 char sspr_pl
[MLXSW_REG_SSPR_LEN
];
312 mlxsw_reg_sspr_pack(sspr_pl
, mlxsw_sp_port
->local_port
);
313 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(sspr
), sspr_pl
);
316 static int mlxsw_sp_port_module_info_get(struct mlxsw_sp
*mlxsw_sp
,
317 u8 local_port
, u8
*p_module
,
318 u8
*p_width
, u8
*p_lane
)
320 char pmlp_pl
[MLXSW_REG_PMLP_LEN
];
323 mlxsw_reg_pmlp_pack(pmlp_pl
, local_port
);
324 err
= mlxsw_reg_query(mlxsw_sp
->core
, MLXSW_REG(pmlp
), pmlp_pl
);
327 *p_module
= mlxsw_reg_pmlp_module_get(pmlp_pl
, 0);
328 *p_width
= mlxsw_reg_pmlp_width_get(pmlp_pl
);
329 *p_lane
= mlxsw_reg_pmlp_tx_lane_get(pmlp_pl
, 0);
333 static int mlxsw_sp_port_module_map(struct mlxsw_sp
*mlxsw_sp
, u8 local_port
,
334 u8 module
, u8 width
, u8 lane
)
336 char pmlp_pl
[MLXSW_REG_PMLP_LEN
];
339 mlxsw_reg_pmlp_pack(pmlp_pl
, local_port
);
340 mlxsw_reg_pmlp_width_set(pmlp_pl
, width
);
341 for (i
= 0; i
< width
; i
++) {
342 mlxsw_reg_pmlp_module_set(pmlp_pl
, i
, module
);
343 mlxsw_reg_pmlp_tx_lane_set(pmlp_pl
, i
, lane
+ i
); /* Rx & Tx */
346 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(pmlp
), pmlp_pl
);
349 static int mlxsw_sp_port_module_unmap(struct mlxsw_sp
*mlxsw_sp
, u8 local_port
)
351 char pmlp_pl
[MLXSW_REG_PMLP_LEN
];
353 mlxsw_reg_pmlp_pack(pmlp_pl
, local_port
);
354 mlxsw_reg_pmlp_width_set(pmlp_pl
, 0);
355 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(pmlp
), pmlp_pl
);
358 static int mlxsw_sp_port_open(struct net_device
*dev
)
360 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(dev
);
363 err
= mlxsw_sp_port_admin_status_set(mlxsw_sp_port
, true);
366 netif_start_queue(dev
);
370 static int mlxsw_sp_port_stop(struct net_device
*dev
)
372 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(dev
);
374 netif_stop_queue(dev
);
375 return mlxsw_sp_port_admin_status_set(mlxsw_sp_port
, false);
378 static netdev_tx_t
mlxsw_sp_port_xmit(struct sk_buff
*skb
,
379 struct net_device
*dev
)
381 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(dev
);
382 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
383 struct mlxsw_sp_port_pcpu_stats
*pcpu_stats
;
384 const struct mlxsw_tx_info tx_info
= {
385 .local_port
= mlxsw_sp_port
->local_port
,
391 if (mlxsw_core_skb_transmit_busy(mlxsw_sp
->core
, &tx_info
))
392 return NETDEV_TX_BUSY
;
394 if (unlikely(skb_headroom(skb
) < MLXSW_TXHDR_LEN
)) {
395 struct sk_buff
*skb_orig
= skb
;
397 skb
= skb_realloc_headroom(skb
, MLXSW_TXHDR_LEN
);
399 this_cpu_inc(mlxsw_sp_port
->pcpu_stats
->tx_dropped
);
400 dev_kfree_skb_any(skb_orig
);
405 if (eth_skb_pad(skb
)) {
406 this_cpu_inc(mlxsw_sp_port
->pcpu_stats
->tx_dropped
);
410 mlxsw_sp_txhdr_construct(skb
, &tx_info
);
412 /* Due to a race we might fail here because of a full queue. In that
413 * unlikely case we simply drop the packet.
415 err
= mlxsw_core_skb_transmit(mlxsw_sp
->core
, skb
, &tx_info
);
418 pcpu_stats
= this_cpu_ptr(mlxsw_sp_port
->pcpu_stats
);
419 u64_stats_update_begin(&pcpu_stats
->syncp
);
420 pcpu_stats
->tx_packets
++;
421 pcpu_stats
->tx_bytes
+= len
;
422 u64_stats_update_end(&pcpu_stats
->syncp
);
424 this_cpu_inc(mlxsw_sp_port
->pcpu_stats
->tx_dropped
);
425 dev_kfree_skb_any(skb
);
430 static void mlxsw_sp_set_rx_mode(struct net_device
*dev
)
434 static int mlxsw_sp_port_set_mac_address(struct net_device
*dev
, void *p
)
436 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(dev
);
437 struct sockaddr
*addr
= p
;
440 if (!is_valid_ether_addr(addr
->sa_data
))
441 return -EADDRNOTAVAIL
;
443 err
= mlxsw_sp_port_dev_addr_set(mlxsw_sp_port
, addr
->sa_data
);
446 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
450 static void mlxsw_sp_pg_buf_pack(char *pbmc_pl
, int pg_index
, int mtu
,
451 bool pause_en
, bool pfc_en
, u16 delay
)
453 u16 pg_size
= 2 * MLXSW_SP_BYTES_TO_CELLS(mtu
);
455 delay
= pfc_en
? mlxsw_sp_pfc_delay_get(mtu
, delay
) :
456 MLXSW_SP_PAUSE_DELAY
;
458 if (pause_en
|| pfc_en
)
459 mlxsw_reg_pbmc_lossless_buffer_pack(pbmc_pl
, pg_index
,
460 pg_size
+ delay
, pg_size
);
462 mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl
, pg_index
, pg_size
);
465 int __mlxsw_sp_port_headroom_set(struct mlxsw_sp_port
*mlxsw_sp_port
, int mtu
,
466 u8
*prio_tc
, bool pause_en
,
467 struct ieee_pfc
*my_pfc
)
469 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
470 u8 pfc_en
= !!my_pfc
? my_pfc
->pfc_en
: 0;
471 u16 delay
= !!my_pfc
? my_pfc
->delay
: 0;
472 char pbmc_pl
[MLXSW_REG_PBMC_LEN
];
475 mlxsw_reg_pbmc_pack(pbmc_pl
, mlxsw_sp_port
->local_port
, 0, 0);
476 err
= mlxsw_reg_query(mlxsw_sp
->core
, MLXSW_REG(pbmc
), pbmc_pl
);
480 for (i
= 0; i
< IEEE_8021QAZ_MAX_TCS
; i
++) {
481 bool configure
= false;
484 for (j
= 0; j
< IEEE_8021QAZ_MAX_TCS
; j
++) {
485 if (prio_tc
[j
] == i
) {
486 pfc
= pfc_en
& BIT(j
);
494 mlxsw_sp_pg_buf_pack(pbmc_pl
, i
, mtu
, pause_en
, pfc
, delay
);
497 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(pbmc
), pbmc_pl
);
500 static int mlxsw_sp_port_headroom_set(struct mlxsw_sp_port
*mlxsw_sp_port
,
501 int mtu
, bool pause_en
)
503 u8 def_prio_tc
[IEEE_8021QAZ_MAX_TCS
] = {0};
504 bool dcb_en
= !!mlxsw_sp_port
->dcb
.ets
;
505 struct ieee_pfc
*my_pfc
;
508 prio_tc
= dcb_en
? mlxsw_sp_port
->dcb
.ets
->prio_tc
: def_prio_tc
;
509 my_pfc
= dcb_en
? mlxsw_sp_port
->dcb
.pfc
: NULL
;
511 return __mlxsw_sp_port_headroom_set(mlxsw_sp_port
, mtu
, prio_tc
,
515 static int mlxsw_sp_port_change_mtu(struct net_device
*dev
, int mtu
)
517 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(dev
);
518 bool pause_en
= mlxsw_sp_port_is_pause_en(mlxsw_sp_port
);
521 err
= mlxsw_sp_port_headroom_set(mlxsw_sp_port
, mtu
, pause_en
);
524 err
= mlxsw_sp_port_mtu_set(mlxsw_sp_port
, mtu
);
526 goto err_port_mtu_set
;
531 mlxsw_sp_port_headroom_set(mlxsw_sp_port
, dev
->mtu
, pause_en
);
535 static struct rtnl_link_stats64
*
536 mlxsw_sp_port_get_stats64(struct net_device
*dev
,
537 struct rtnl_link_stats64
*stats
)
539 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(dev
);
540 struct mlxsw_sp_port_pcpu_stats
*p
;
541 u64 rx_packets
, rx_bytes
, tx_packets
, tx_bytes
;
546 for_each_possible_cpu(i
) {
547 p
= per_cpu_ptr(mlxsw_sp_port
->pcpu_stats
, i
);
549 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
550 rx_packets
= p
->rx_packets
;
551 rx_bytes
= p
->rx_bytes
;
552 tx_packets
= p
->tx_packets
;
553 tx_bytes
= p
->tx_bytes
;
554 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
556 stats
->rx_packets
+= rx_packets
;
557 stats
->rx_bytes
+= rx_bytes
;
558 stats
->tx_packets
+= tx_packets
;
559 stats
->tx_bytes
+= tx_bytes
;
560 /* tx_dropped is u32, updated without syncp protection. */
561 tx_dropped
+= p
->tx_dropped
;
563 stats
->tx_dropped
= tx_dropped
;
567 int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port
*mlxsw_sp_port
, u16 vid_begin
,
568 u16 vid_end
, bool is_member
, bool untagged
)
570 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
574 spvm_pl
= kmalloc(MLXSW_REG_SPVM_LEN
, GFP_KERNEL
);
578 mlxsw_reg_spvm_pack(spvm_pl
, mlxsw_sp_port
->local_port
, vid_begin
,
579 vid_end
, is_member
, untagged
);
580 err
= mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(spvm
), spvm_pl
);
585 static int mlxsw_sp_port_vp_mode_trans(struct mlxsw_sp_port
*mlxsw_sp_port
)
587 enum mlxsw_reg_svfa_mt mt
= MLXSW_REG_SVFA_MT_PORT_VID_TO_FID
;
588 u16 vid
, last_visited_vid
;
591 for_each_set_bit(vid
, mlxsw_sp_port
->active_vlans
, VLAN_N_VID
) {
592 err
= mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port
, mt
, true, vid
,
595 last_visited_vid
= vid
;
596 goto err_port_vid_to_fid_set
;
600 err
= mlxsw_sp_port_vp_mode_set(mlxsw_sp_port
, true);
602 last_visited_vid
= VLAN_N_VID
;
603 goto err_port_vid_to_fid_set
;
608 err_port_vid_to_fid_set
:
609 for_each_set_bit(vid
, mlxsw_sp_port
->active_vlans
, last_visited_vid
)
610 mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port
, mt
, false, vid
,
615 static int mlxsw_sp_port_vlan_mode_trans(struct mlxsw_sp_port
*mlxsw_sp_port
)
617 enum mlxsw_reg_svfa_mt mt
= MLXSW_REG_SVFA_MT_PORT_VID_TO_FID
;
621 err
= mlxsw_sp_port_vp_mode_set(mlxsw_sp_port
, false);
625 for_each_set_bit(vid
, mlxsw_sp_port
->active_vlans
, VLAN_N_VID
) {
626 err
= mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port
, mt
, false,
635 static struct mlxsw_sp_vfid
*
636 mlxsw_sp_vfid_find(const struct mlxsw_sp
*mlxsw_sp
, u16 vid
)
638 struct mlxsw_sp_vfid
*vfid
;
640 list_for_each_entry(vfid
, &mlxsw_sp
->port_vfids
.list
, list
) {
641 if (vfid
->vid
== vid
)
648 static u16
mlxsw_sp_avail_vfid_get(const struct mlxsw_sp
*mlxsw_sp
)
650 return find_first_zero_bit(mlxsw_sp
->port_vfids
.mapped
,
651 MLXSW_SP_VFID_PORT_MAX
);
654 static int __mlxsw_sp_vfid_create(struct mlxsw_sp
*mlxsw_sp
, u16 vfid
)
656 u16 fid
= mlxsw_sp_vfid_to_fid(vfid
);
657 char sfmr_pl
[MLXSW_REG_SFMR_LEN
];
659 mlxsw_reg_sfmr_pack(sfmr_pl
, MLXSW_REG_SFMR_OP_CREATE_FID
, fid
, 0);
660 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(sfmr
), sfmr_pl
);
663 static void __mlxsw_sp_vfid_destroy(struct mlxsw_sp
*mlxsw_sp
, u16 vfid
)
665 u16 fid
= mlxsw_sp_vfid_to_fid(vfid
);
666 char sfmr_pl
[MLXSW_REG_SFMR_LEN
];
668 mlxsw_reg_sfmr_pack(sfmr_pl
, MLXSW_REG_SFMR_OP_DESTROY_FID
, fid
, 0);
669 mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(sfmr
), sfmr_pl
);
672 static struct mlxsw_sp_vfid
*mlxsw_sp_vfid_create(struct mlxsw_sp
*mlxsw_sp
,
675 struct device
*dev
= mlxsw_sp
->bus_info
->dev
;
676 struct mlxsw_sp_vfid
*vfid
;
680 n_vfid
= mlxsw_sp_avail_vfid_get(mlxsw_sp
);
681 if (n_vfid
== MLXSW_SP_VFID_PORT_MAX
) {
682 dev_err(dev
, "No available vFIDs\n");
683 return ERR_PTR(-ERANGE
);
686 err
= __mlxsw_sp_vfid_create(mlxsw_sp
, n_vfid
);
688 dev_err(dev
, "Failed to create vFID=%d\n", n_vfid
);
692 vfid
= kzalloc(sizeof(*vfid
), GFP_KERNEL
);
694 goto err_allocate_vfid
;
699 list_add(&vfid
->list
, &mlxsw_sp
->port_vfids
.list
);
700 set_bit(n_vfid
, mlxsw_sp
->port_vfids
.mapped
);
705 __mlxsw_sp_vfid_destroy(mlxsw_sp
, n_vfid
);
706 return ERR_PTR(-ENOMEM
);
709 static void mlxsw_sp_vfid_destroy(struct mlxsw_sp
*mlxsw_sp
,
710 struct mlxsw_sp_vfid
*vfid
)
712 clear_bit(vfid
->vfid
, mlxsw_sp
->port_vfids
.mapped
);
713 list_del(&vfid
->list
);
715 __mlxsw_sp_vfid_destroy(mlxsw_sp
, vfid
->vfid
);
720 static struct mlxsw_sp_port
*
721 mlxsw_sp_port_vport_create(struct mlxsw_sp_port
*mlxsw_sp_port
,
722 struct mlxsw_sp_vfid
*vfid
)
724 struct mlxsw_sp_port
*mlxsw_sp_vport
;
726 mlxsw_sp_vport
= kzalloc(sizeof(*mlxsw_sp_vport
), GFP_KERNEL
);
730 /* dev will be set correctly after the VLAN device is linked
731 * with the real device. In case of bridge SELF invocation, dev
734 mlxsw_sp_vport
->dev
= mlxsw_sp_port
->dev
;
735 mlxsw_sp_vport
->mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
736 mlxsw_sp_vport
->local_port
= mlxsw_sp_port
->local_port
;
737 mlxsw_sp_vport
->stp_state
= BR_STATE_FORWARDING
;
738 mlxsw_sp_vport
->lagged
= mlxsw_sp_port
->lagged
;
739 mlxsw_sp_vport
->lag_id
= mlxsw_sp_port
->lag_id
;
740 mlxsw_sp_vport
->vport
.vfid
= vfid
;
741 mlxsw_sp_vport
->vport
.vid
= vfid
->vid
;
743 list_add(&mlxsw_sp_vport
->vport
.list
, &mlxsw_sp_port
->vports_list
);
745 return mlxsw_sp_vport
;
748 static void mlxsw_sp_port_vport_destroy(struct mlxsw_sp_port
*mlxsw_sp_vport
)
750 list_del(&mlxsw_sp_vport
->vport
.list
);
751 kfree(mlxsw_sp_vport
);
754 int mlxsw_sp_port_add_vid(struct net_device
*dev
, __be16 __always_unused proto
,
757 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(dev
);
758 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
759 struct mlxsw_sp_port
*mlxsw_sp_vport
;
760 struct mlxsw_sp_vfid
*vfid
;
763 /* VLAN 0 is added to HW filter when device goes up, but it is
764 * reserved in our case, so simply return.
769 if (mlxsw_sp_port_vport_find(mlxsw_sp_port
, vid
)) {
770 netdev_warn(dev
, "VID=%d already configured\n", vid
);
774 vfid
= mlxsw_sp_vfid_find(mlxsw_sp
, vid
);
776 vfid
= mlxsw_sp_vfid_create(mlxsw_sp
, vid
);
778 netdev_err(dev
, "Failed to create vFID for VID=%d\n",
780 return PTR_ERR(vfid
);
784 mlxsw_sp_vport
= mlxsw_sp_port_vport_create(mlxsw_sp_port
, vfid
);
785 if (!mlxsw_sp_vport
) {
786 netdev_err(dev
, "Failed to create vPort for VID=%d\n", vid
);
788 goto err_port_vport_create
;
791 if (!vfid
->nr_vports
) {
792 err
= mlxsw_sp_vport_flood_set(mlxsw_sp_vport
, vfid
->vfid
,
795 netdev_err(dev
, "Failed to setup flooding for vFID=%d\n",
797 goto err_vport_flood_set
;
801 /* When adding the first VLAN interface on a bridged port we need to
802 * transition all the active 802.1Q bridge VLANs to use explicit
803 * {Port, VID} to FID mappings and set the port's mode to Virtual mode.
805 if (list_is_singular(&mlxsw_sp_port
->vports_list
)) {
806 err
= mlxsw_sp_port_vp_mode_trans(mlxsw_sp_port
);
808 netdev_err(dev
, "Failed to set to Virtual mode\n");
809 goto err_port_vp_mode_trans
;
813 err
= mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport
,
814 MLXSW_REG_SVFA_MT_PORT_VID_TO_FID
,
816 mlxsw_sp_vfid_to_fid(vfid
->vfid
),
819 netdev_err(dev
, "Failed to map {Port, VID=%d} to vFID=%d\n",
821 goto err_port_vid_to_fid_set
;
824 err
= mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport
, vid
, false);
826 netdev_err(dev
, "Failed to disable learning for VID=%d\n", vid
);
827 goto err_port_vid_learning_set
;
830 err
= mlxsw_sp_port_vlan_set(mlxsw_sp_vport
, vid
, vid
, true, false);
832 netdev_err(dev
, "Failed to set VLAN membership for VID=%d\n",
834 goto err_port_add_vid
;
837 err
= mlxsw_sp_port_stp_state_set(mlxsw_sp_vport
, vid
,
838 MLXSW_REG_SPMS_STATE_FORWARDING
);
840 netdev_err(dev
, "Failed to set STP state for VID=%d\n", vid
);
841 goto err_port_stp_state_set
;
848 err_port_stp_state_set
:
849 mlxsw_sp_port_vlan_set(mlxsw_sp_vport
, vid
, vid
, false, false);
851 mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport
, vid
, true);
852 err_port_vid_learning_set
:
853 mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport
,
854 MLXSW_REG_SVFA_MT_PORT_VID_TO_FID
, false,
855 mlxsw_sp_vfid_to_fid(vfid
->vfid
), vid
);
856 err_port_vid_to_fid_set
:
857 if (list_is_singular(&mlxsw_sp_port
->vports_list
))
858 mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port
);
859 err_port_vp_mode_trans
:
860 if (!vfid
->nr_vports
)
861 mlxsw_sp_vport_flood_set(mlxsw_sp_vport
, vfid
->vfid
, false,
864 mlxsw_sp_port_vport_destroy(mlxsw_sp_vport
);
865 err_port_vport_create
:
866 if (!vfid
->nr_vports
)
867 mlxsw_sp_vfid_destroy(mlxsw_sp
, vfid
);
871 int mlxsw_sp_port_kill_vid(struct net_device
*dev
,
872 __be16 __always_unused proto
, u16 vid
)
874 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(dev
);
875 struct mlxsw_sp_port
*mlxsw_sp_vport
;
876 struct mlxsw_sp_vfid
*vfid
;
879 /* VLAN 0 is removed from HW filter when device goes down, but
880 * it is reserved in our case, so simply return.
885 mlxsw_sp_vport
= mlxsw_sp_port_vport_find(mlxsw_sp_port
, vid
);
886 if (!mlxsw_sp_vport
) {
887 netdev_warn(dev
, "VID=%d does not exist\n", vid
);
891 vfid
= mlxsw_sp_vport
->vport
.vfid
;
893 err
= mlxsw_sp_port_stp_state_set(mlxsw_sp_vport
, vid
,
894 MLXSW_REG_SPMS_STATE_DISCARDING
);
896 netdev_err(dev
, "Failed to set STP state for VID=%d\n", vid
);
900 err
= mlxsw_sp_port_vlan_set(mlxsw_sp_vport
, vid
, vid
, false, false);
902 netdev_err(dev
, "Failed to set VLAN membership for VID=%d\n",
907 err
= mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport
, vid
, true);
909 netdev_err(dev
, "Failed to enable learning for VID=%d\n", vid
);
913 err
= mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport
,
914 MLXSW_REG_SVFA_MT_PORT_VID_TO_FID
,
916 mlxsw_sp_vfid_to_fid(vfid
->vfid
),
919 netdev_err(dev
, "Failed to invalidate {Port, VID=%d} to vFID=%d mapping\n",
924 /* When removing the last VLAN interface on a bridged port we need to
925 * transition all active 802.1Q bridge VLANs to use VID to FID
926 * mappings and set port's mode to VLAN mode.
928 if (list_is_singular(&mlxsw_sp_port
->vports_list
)) {
929 err
= mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port
);
931 netdev_err(dev
, "Failed to set to VLAN mode\n");
937 mlxsw_sp_port_vport_destroy(mlxsw_sp_vport
);
939 /* Destroy the vFID if no vPorts are assigned to it anymore. */
940 if (!vfid
->nr_vports
)
941 mlxsw_sp_vfid_destroy(mlxsw_sp_port
->mlxsw_sp
, vfid
);
946 static int mlxsw_sp_port_get_phys_port_name(struct net_device
*dev
, char *name
,
949 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(dev
);
950 u8 module
= mlxsw_sp_port
->mapping
.module
;
951 u8 width
= mlxsw_sp_port
->mapping
.width
;
952 u8 lane
= mlxsw_sp_port
->mapping
.lane
;
955 if (!mlxsw_sp_port
->split
)
956 err
= snprintf(name
, len
, "p%d", module
+ 1);
958 err
= snprintf(name
, len
, "p%ds%d", module
+ 1,
967 static const struct net_device_ops mlxsw_sp_port_netdev_ops
= {
968 .ndo_open
= mlxsw_sp_port_open
,
969 .ndo_stop
= mlxsw_sp_port_stop
,
970 .ndo_start_xmit
= mlxsw_sp_port_xmit
,
971 .ndo_set_rx_mode
= mlxsw_sp_set_rx_mode
,
972 .ndo_set_mac_address
= mlxsw_sp_port_set_mac_address
,
973 .ndo_change_mtu
= mlxsw_sp_port_change_mtu
,
974 .ndo_get_stats64
= mlxsw_sp_port_get_stats64
,
975 .ndo_vlan_rx_add_vid
= mlxsw_sp_port_add_vid
,
976 .ndo_vlan_rx_kill_vid
= mlxsw_sp_port_kill_vid
,
977 .ndo_fdb_add
= switchdev_port_fdb_add
,
978 .ndo_fdb_del
= switchdev_port_fdb_del
,
979 .ndo_fdb_dump
= switchdev_port_fdb_dump
,
980 .ndo_bridge_setlink
= switchdev_port_bridge_setlink
,
981 .ndo_bridge_getlink
= switchdev_port_bridge_getlink
,
982 .ndo_bridge_dellink
= switchdev_port_bridge_dellink
,
983 .ndo_get_phys_port_name
= mlxsw_sp_port_get_phys_port_name
,
986 static void mlxsw_sp_port_get_drvinfo(struct net_device
*dev
,
987 struct ethtool_drvinfo
*drvinfo
)
989 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(dev
);
990 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
992 strlcpy(drvinfo
->driver
, mlxsw_sp_driver_name
, sizeof(drvinfo
->driver
));
993 strlcpy(drvinfo
->version
, mlxsw_sp_driver_version
,
994 sizeof(drvinfo
->version
));
995 snprintf(drvinfo
->fw_version
, sizeof(drvinfo
->fw_version
),
997 mlxsw_sp
->bus_info
->fw_rev
.major
,
998 mlxsw_sp
->bus_info
->fw_rev
.minor
,
999 mlxsw_sp
->bus_info
->fw_rev
.subminor
);
1000 strlcpy(drvinfo
->bus_info
, mlxsw_sp
->bus_info
->device_name
,
1001 sizeof(drvinfo
->bus_info
));
1004 static void mlxsw_sp_port_get_pauseparam(struct net_device
*dev
,
1005 struct ethtool_pauseparam
*pause
)
1007 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(dev
);
1009 pause
->rx_pause
= mlxsw_sp_port
->link
.rx_pause
;
1010 pause
->tx_pause
= mlxsw_sp_port
->link
.tx_pause
;
1013 static int mlxsw_sp_port_pause_set(struct mlxsw_sp_port
*mlxsw_sp_port
,
1014 struct ethtool_pauseparam
*pause
)
1016 char pfcc_pl
[MLXSW_REG_PFCC_LEN
];
1018 mlxsw_reg_pfcc_pack(pfcc_pl
, mlxsw_sp_port
->local_port
);
1019 mlxsw_reg_pfcc_pprx_set(pfcc_pl
, pause
->rx_pause
);
1020 mlxsw_reg_pfcc_pptx_set(pfcc_pl
, pause
->tx_pause
);
1022 return mlxsw_reg_write(mlxsw_sp_port
->mlxsw_sp
->core
, MLXSW_REG(pfcc
),
1026 static int mlxsw_sp_port_set_pauseparam(struct net_device
*dev
,
1027 struct ethtool_pauseparam
*pause
)
1029 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(dev
);
1030 bool pause_en
= pause
->tx_pause
|| pause
->rx_pause
;
1033 if (mlxsw_sp_port
->dcb
.pfc
&& mlxsw_sp_port
->dcb
.pfc
->pfc_en
) {
1034 netdev_err(dev
, "PFC already enabled on port\n");
1038 if (pause
->autoneg
) {
1039 netdev_err(dev
, "PAUSE frames autonegotiation isn't supported\n");
1043 err
= mlxsw_sp_port_headroom_set(mlxsw_sp_port
, dev
->mtu
, pause_en
);
1045 netdev_err(dev
, "Failed to configure port's headroom\n");
1049 err
= mlxsw_sp_port_pause_set(mlxsw_sp_port
, pause
);
1051 netdev_err(dev
, "Failed to set PAUSE parameters\n");
1052 goto err_port_pause_configure
;
1055 mlxsw_sp_port
->link
.rx_pause
= pause
->rx_pause
;
1056 mlxsw_sp_port
->link
.tx_pause
= pause
->tx_pause
;
1060 err_port_pause_configure
:
1061 pause_en
= mlxsw_sp_port_is_pause_en(mlxsw_sp_port
);
1062 mlxsw_sp_port_headroom_set(mlxsw_sp_port
, dev
->mtu
, pause_en
);
1066 struct mlxsw_sp_port_hw_stats
{
1067 char str
[ETH_GSTRING_LEN
];
1068 u64 (*getter
)(char *payload
);
1071 static const struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_stats
[] = {
1073 .str
= "a_frames_transmitted_ok",
1074 .getter
= mlxsw_reg_ppcnt_a_frames_transmitted_ok_get
,
1077 .str
= "a_frames_received_ok",
1078 .getter
= mlxsw_reg_ppcnt_a_frames_received_ok_get
,
1081 .str
= "a_frame_check_sequence_errors",
1082 .getter
= mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get
,
1085 .str
= "a_alignment_errors",
1086 .getter
= mlxsw_reg_ppcnt_a_alignment_errors_get
,
1089 .str
= "a_octets_transmitted_ok",
1090 .getter
= mlxsw_reg_ppcnt_a_octets_transmitted_ok_get
,
1093 .str
= "a_octets_received_ok",
1094 .getter
= mlxsw_reg_ppcnt_a_octets_received_ok_get
,
1097 .str
= "a_multicast_frames_xmitted_ok",
1098 .getter
= mlxsw_reg_ppcnt_a_multicast_frames_xmitted_ok_get
,
1101 .str
= "a_broadcast_frames_xmitted_ok",
1102 .getter
= mlxsw_reg_ppcnt_a_broadcast_frames_xmitted_ok_get
,
1105 .str
= "a_multicast_frames_received_ok",
1106 .getter
= mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get
,
1109 .str
= "a_broadcast_frames_received_ok",
1110 .getter
= mlxsw_reg_ppcnt_a_broadcast_frames_received_ok_get
,
1113 .str
= "a_in_range_length_errors",
1114 .getter
= mlxsw_reg_ppcnt_a_in_range_length_errors_get
,
1117 .str
= "a_out_of_range_length_field",
1118 .getter
= mlxsw_reg_ppcnt_a_out_of_range_length_field_get
,
1121 .str
= "a_frame_too_long_errors",
1122 .getter
= mlxsw_reg_ppcnt_a_frame_too_long_errors_get
,
1125 .str
= "a_symbol_error_during_carrier",
1126 .getter
= mlxsw_reg_ppcnt_a_symbol_error_during_carrier_get
,
1129 .str
= "a_mac_control_frames_transmitted",
1130 .getter
= mlxsw_reg_ppcnt_a_mac_control_frames_transmitted_get
,
1133 .str
= "a_mac_control_frames_received",
1134 .getter
= mlxsw_reg_ppcnt_a_mac_control_frames_received_get
,
1137 .str
= "a_unsupported_opcodes_received",
1138 .getter
= mlxsw_reg_ppcnt_a_unsupported_opcodes_received_get
,
1141 .str
= "a_pause_mac_ctrl_frames_received",
1142 .getter
= mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_received_get
,
1145 .str
= "a_pause_mac_ctrl_frames_xmitted",
1146 .getter
= mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_transmitted_get
,
1150 #define MLXSW_SP_PORT_HW_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_stats)
1152 static void mlxsw_sp_port_get_strings(struct net_device
*dev
,
1153 u32 stringset
, u8
*data
)
1158 switch (stringset
) {
1160 for (i
= 0; i
< MLXSW_SP_PORT_HW_STATS_LEN
; i
++) {
1161 memcpy(p
, mlxsw_sp_port_hw_stats
[i
].str
,
1163 p
+= ETH_GSTRING_LEN
;
1169 static int mlxsw_sp_port_set_phys_id(struct net_device
*dev
,
1170 enum ethtool_phys_id_state state
)
1172 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(dev
);
1173 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
1174 char mlcr_pl
[MLXSW_REG_MLCR_LEN
];
1178 case ETHTOOL_ID_ACTIVE
:
1181 case ETHTOOL_ID_INACTIVE
:
1188 mlxsw_reg_mlcr_pack(mlcr_pl
, mlxsw_sp_port
->local_port
, active
);
1189 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(mlcr
), mlcr_pl
);
1192 static void mlxsw_sp_port_get_stats(struct net_device
*dev
,
1193 struct ethtool_stats
*stats
, u64
*data
)
1195 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(dev
);
1196 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
1197 char ppcnt_pl
[MLXSW_REG_PPCNT_LEN
];
1201 mlxsw_reg_ppcnt_pack(ppcnt_pl
, mlxsw_sp_port
->local_port
,
1202 MLXSW_REG_PPCNT_IEEE_8023_CNT
, 0);
1203 err
= mlxsw_reg_query(mlxsw_sp
->core
, MLXSW_REG(ppcnt
), ppcnt_pl
);
1204 for (i
= 0; i
< MLXSW_SP_PORT_HW_STATS_LEN
; i
++)
1205 data
[i
] = !err
? mlxsw_sp_port_hw_stats
[i
].getter(ppcnt_pl
) : 0;
1208 static int mlxsw_sp_port_get_sset_count(struct net_device
*dev
, int sset
)
1212 return MLXSW_SP_PORT_HW_STATS_LEN
;
1218 struct mlxsw_sp_port_link_mode
{
1225 static const struct mlxsw_sp_port_link_mode mlxsw_sp_port_link_mode
[] = {
1227 .mask
= MLXSW_REG_PTYS_ETH_SPEED_100BASE_T
,
1228 .supported
= SUPPORTED_100baseT_Full
,
1229 .advertised
= ADVERTISED_100baseT_Full
,
1233 .mask
= MLXSW_REG_PTYS_ETH_SPEED_100BASE_TX
,
1237 .mask
= MLXSW_REG_PTYS_ETH_SPEED_SGMII
|
1238 MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX
,
1239 .supported
= SUPPORTED_1000baseKX_Full
,
1240 .advertised
= ADVERTISED_1000baseKX_Full
,
1244 .mask
= MLXSW_REG_PTYS_ETH_SPEED_10GBASE_T
,
1245 .supported
= SUPPORTED_10000baseT_Full
,
1246 .advertised
= ADVERTISED_10000baseT_Full
,
1250 .mask
= MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4
|
1251 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4
,
1252 .supported
= SUPPORTED_10000baseKX4_Full
,
1253 .advertised
= ADVERTISED_10000baseKX4_Full
,
1257 .mask
= MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR
|
1258 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR
|
1259 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR
|
1260 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR
,
1261 .supported
= SUPPORTED_10000baseKR_Full
,
1262 .advertised
= ADVERTISED_10000baseKR_Full
,
1266 .mask
= MLXSW_REG_PTYS_ETH_SPEED_20GBASE_KR2
,
1267 .supported
= SUPPORTED_20000baseKR2_Full
,
1268 .advertised
= ADVERTISED_20000baseKR2_Full
,
1272 .mask
= MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4
,
1273 .supported
= SUPPORTED_40000baseCR4_Full
,
1274 .advertised
= ADVERTISED_40000baseCR4_Full
,
1278 .mask
= MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4
,
1279 .supported
= SUPPORTED_40000baseKR4_Full
,
1280 .advertised
= ADVERTISED_40000baseKR4_Full
,
1284 .mask
= MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4
,
1285 .supported
= SUPPORTED_40000baseSR4_Full
,
1286 .advertised
= ADVERTISED_40000baseSR4_Full
,
1290 .mask
= MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4
,
1291 .supported
= SUPPORTED_40000baseLR4_Full
,
1292 .advertised
= ADVERTISED_40000baseLR4_Full
,
1296 .mask
= MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR
|
1297 MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR
|
1298 MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR
,
1302 .mask
= MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR4
|
1303 MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2
|
1304 MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2
,
1308 .mask
= MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4
,
1309 .supported
= SUPPORTED_56000baseKR4_Full
,
1310 .advertised
= ADVERTISED_56000baseKR4_Full
,
1314 .mask
= MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4
|
1315 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4
|
1316 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4
|
1317 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4
,
1322 #define MLXSW_SP_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp_port_link_mode)
1324 static u32
mlxsw_sp_from_ptys_supported_port(u32 ptys_eth_proto
)
1326 if (ptys_eth_proto
& (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR
|
1327 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR
|
1328 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4
|
1329 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4
|
1330 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4
|
1331 MLXSW_REG_PTYS_ETH_SPEED_SGMII
))
1332 return SUPPORTED_FIBRE
;
1334 if (ptys_eth_proto
& (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR
|
1335 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4
|
1336 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4
|
1337 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4
|
1338 MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX
))
1339 return SUPPORTED_Backplane
;
1343 static u32
mlxsw_sp_from_ptys_supported_link(u32 ptys_eth_proto
)
1348 for (i
= 0; i
< MLXSW_SP_PORT_LINK_MODE_LEN
; i
++) {
1349 if (ptys_eth_proto
& mlxsw_sp_port_link_mode
[i
].mask
)
1350 modes
|= mlxsw_sp_port_link_mode
[i
].supported
;
1355 static u32
mlxsw_sp_from_ptys_advert_link(u32 ptys_eth_proto
)
1360 for (i
= 0; i
< MLXSW_SP_PORT_LINK_MODE_LEN
; i
++) {
1361 if (ptys_eth_proto
& mlxsw_sp_port_link_mode
[i
].mask
)
1362 modes
|= mlxsw_sp_port_link_mode
[i
].advertised
;
1367 static void mlxsw_sp_from_ptys_speed_duplex(bool carrier_ok
, u32 ptys_eth_proto
,
1368 struct ethtool_cmd
*cmd
)
1370 u32 speed
= SPEED_UNKNOWN
;
1371 u8 duplex
= DUPLEX_UNKNOWN
;
1377 for (i
= 0; i
< MLXSW_SP_PORT_LINK_MODE_LEN
; i
++) {
1378 if (ptys_eth_proto
& mlxsw_sp_port_link_mode
[i
].mask
) {
1379 speed
= mlxsw_sp_port_link_mode
[i
].speed
;
1380 duplex
= DUPLEX_FULL
;
1385 ethtool_cmd_speed_set(cmd
, speed
);
1386 cmd
->duplex
= duplex
;
1389 static u8
mlxsw_sp_port_connector_port(u32 ptys_eth_proto
)
1391 if (ptys_eth_proto
& (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR
|
1392 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4
|
1393 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4
|
1394 MLXSW_REG_PTYS_ETH_SPEED_SGMII
))
1397 if (ptys_eth_proto
& (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR
|
1398 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4
|
1399 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4
))
1402 if (ptys_eth_proto
& (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR
|
1403 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4
|
1404 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4
|
1405 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4
))
1411 static int mlxsw_sp_port_get_settings(struct net_device
*dev
,
1412 struct ethtool_cmd
*cmd
)
1414 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(dev
);
1415 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
1416 char ptys_pl
[MLXSW_REG_PTYS_LEN
];
1418 u32 eth_proto_admin
;
1422 mlxsw_reg_ptys_pack(ptys_pl
, mlxsw_sp_port
->local_port
, 0);
1423 err
= mlxsw_reg_query(mlxsw_sp
->core
, MLXSW_REG(ptys
), ptys_pl
);
1425 netdev_err(dev
, "Failed to get proto");
1428 mlxsw_reg_ptys_unpack(ptys_pl
, ð_proto_cap
,
1429 ð_proto_admin
, ð_proto_oper
);
1431 cmd
->supported
= mlxsw_sp_from_ptys_supported_port(eth_proto_cap
) |
1432 mlxsw_sp_from_ptys_supported_link(eth_proto_cap
) |
1433 SUPPORTED_Pause
| SUPPORTED_Asym_Pause
;
1434 cmd
->advertising
= mlxsw_sp_from_ptys_advert_link(eth_proto_admin
);
1435 mlxsw_sp_from_ptys_speed_duplex(netif_carrier_ok(dev
),
1436 eth_proto_oper
, cmd
);
1438 eth_proto_oper
= eth_proto_oper
? eth_proto_oper
: eth_proto_cap
;
1439 cmd
->port
= mlxsw_sp_port_connector_port(eth_proto_oper
);
1440 cmd
->lp_advertising
= mlxsw_sp_from_ptys_advert_link(eth_proto_oper
);
1442 cmd
->transceiver
= XCVR_INTERNAL
;
1446 static u32
mlxsw_sp_to_ptys_advert_link(u32 advertising
)
1451 for (i
= 0; i
< MLXSW_SP_PORT_LINK_MODE_LEN
; i
++) {
1452 if (advertising
& mlxsw_sp_port_link_mode
[i
].advertised
)
1453 ptys_proto
|= mlxsw_sp_port_link_mode
[i
].mask
;
1458 static u32
mlxsw_sp_to_ptys_speed(u32 speed
)
1463 for (i
= 0; i
< MLXSW_SP_PORT_LINK_MODE_LEN
; i
++) {
1464 if (speed
== mlxsw_sp_port_link_mode
[i
].speed
)
1465 ptys_proto
|= mlxsw_sp_port_link_mode
[i
].mask
;
1470 static u32
mlxsw_sp_to_ptys_upper_speed(u32 upper_speed
)
1475 for (i
= 0; i
< MLXSW_SP_PORT_LINK_MODE_LEN
; i
++) {
1476 if (mlxsw_sp_port_link_mode
[i
].speed
<= upper_speed
)
1477 ptys_proto
|= mlxsw_sp_port_link_mode
[i
].mask
;
1482 static int mlxsw_sp_port_set_settings(struct net_device
*dev
,
1483 struct ethtool_cmd
*cmd
)
1485 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(dev
);
1486 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
1487 char ptys_pl
[MLXSW_REG_PTYS_LEN
];
1491 u32 eth_proto_admin
;
1495 speed
= ethtool_cmd_speed(cmd
);
1497 eth_proto_new
= cmd
->autoneg
== AUTONEG_ENABLE
?
1498 mlxsw_sp_to_ptys_advert_link(cmd
->advertising
) :
1499 mlxsw_sp_to_ptys_speed(speed
);
1501 mlxsw_reg_ptys_pack(ptys_pl
, mlxsw_sp_port
->local_port
, 0);
1502 err
= mlxsw_reg_query(mlxsw_sp
->core
, MLXSW_REG(ptys
), ptys_pl
);
1504 netdev_err(dev
, "Failed to get proto");
1507 mlxsw_reg_ptys_unpack(ptys_pl
, ð_proto_cap
, ð_proto_admin
, NULL
);
1509 eth_proto_new
= eth_proto_new
& eth_proto_cap
;
1510 if (!eth_proto_new
) {
1511 netdev_err(dev
, "Not supported proto admin requested");
1514 if (eth_proto_new
== eth_proto_admin
)
1517 mlxsw_reg_ptys_pack(ptys_pl
, mlxsw_sp_port
->local_port
, eth_proto_new
);
1518 err
= mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ptys
), ptys_pl
);
1520 netdev_err(dev
, "Failed to set proto admin");
1524 err
= mlxsw_sp_port_oper_status_get(mlxsw_sp_port
, &is_up
);
1526 netdev_err(dev
, "Failed to get oper status");
1532 err
= mlxsw_sp_port_admin_status_set(mlxsw_sp_port
, false);
1534 netdev_err(dev
, "Failed to set admin status");
1538 err
= mlxsw_sp_port_admin_status_set(mlxsw_sp_port
, true);
1540 netdev_err(dev
, "Failed to set admin status");
1547 static const struct ethtool_ops mlxsw_sp_port_ethtool_ops
= {
1548 .get_drvinfo
= mlxsw_sp_port_get_drvinfo
,
1549 .get_link
= ethtool_op_get_link
,
1550 .get_pauseparam
= mlxsw_sp_port_get_pauseparam
,
1551 .set_pauseparam
= mlxsw_sp_port_set_pauseparam
,
1552 .get_strings
= mlxsw_sp_port_get_strings
,
1553 .set_phys_id
= mlxsw_sp_port_set_phys_id
,
1554 .get_ethtool_stats
= mlxsw_sp_port_get_stats
,
1555 .get_sset_count
= mlxsw_sp_port_get_sset_count
,
1556 .get_settings
= mlxsw_sp_port_get_settings
,
1557 .set_settings
= mlxsw_sp_port_set_settings
,
1561 mlxsw_sp_port_speed_by_width_set(struct mlxsw_sp_port
*mlxsw_sp_port
, u8 width
)
1563 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
1564 u32 upper_speed
= MLXSW_SP_PORT_BASE_SPEED
* width
;
1565 char ptys_pl
[MLXSW_REG_PTYS_LEN
];
1566 u32 eth_proto_admin
;
1568 eth_proto_admin
= mlxsw_sp_to_ptys_upper_speed(upper_speed
);
1569 mlxsw_reg_ptys_pack(ptys_pl
, mlxsw_sp_port
->local_port
,
1571 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ptys
), ptys_pl
);
1574 int mlxsw_sp_port_ets_set(struct mlxsw_sp_port
*mlxsw_sp_port
,
1575 enum mlxsw_reg_qeec_hr hr
, u8 index
, u8 next_index
,
1576 bool dwrr
, u8 dwrr_weight
)
1578 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
1579 char qeec_pl
[MLXSW_REG_QEEC_LEN
];
1581 mlxsw_reg_qeec_pack(qeec_pl
, mlxsw_sp_port
->local_port
, hr
, index
,
1583 mlxsw_reg_qeec_de_set(qeec_pl
, true);
1584 mlxsw_reg_qeec_dwrr_set(qeec_pl
, dwrr
);
1585 mlxsw_reg_qeec_dwrr_weight_set(qeec_pl
, dwrr_weight
);
1586 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(qeec
), qeec_pl
);
1589 int mlxsw_sp_port_ets_maxrate_set(struct mlxsw_sp_port
*mlxsw_sp_port
,
1590 enum mlxsw_reg_qeec_hr hr
, u8 index
,
1591 u8 next_index
, u32 maxrate
)
1593 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
1594 char qeec_pl
[MLXSW_REG_QEEC_LEN
];
1596 mlxsw_reg_qeec_pack(qeec_pl
, mlxsw_sp_port
->local_port
, hr
, index
,
1598 mlxsw_reg_qeec_mase_set(qeec_pl
, true);
1599 mlxsw_reg_qeec_max_shaper_rate_set(qeec_pl
, maxrate
);
1600 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(qeec
), qeec_pl
);
1603 int mlxsw_sp_port_prio_tc_set(struct mlxsw_sp_port
*mlxsw_sp_port
,
1604 u8 switch_prio
, u8 tclass
)
1606 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
1607 char qtct_pl
[MLXSW_REG_QTCT_LEN
];
1609 mlxsw_reg_qtct_pack(qtct_pl
, mlxsw_sp_port
->local_port
, switch_prio
,
1611 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(qtct
), qtct_pl
);
1614 static int mlxsw_sp_port_ets_init(struct mlxsw_sp_port
*mlxsw_sp_port
)
1618 /* Setup the elements hierarcy, so that each TC is linked to
1619 * one subgroup, which are all member in the same group.
1621 err
= mlxsw_sp_port_ets_set(mlxsw_sp_port
,
1622 MLXSW_REG_QEEC_HIERARCY_GROUP
, 0, 0, false,
1626 for (i
= 0; i
< IEEE_8021QAZ_MAX_TCS
; i
++) {
1627 err
= mlxsw_sp_port_ets_set(mlxsw_sp_port
,
1628 MLXSW_REG_QEEC_HIERARCY_SUBGROUP
, i
,
1633 for (i
= 0; i
< IEEE_8021QAZ_MAX_TCS
; i
++) {
1634 err
= mlxsw_sp_port_ets_set(mlxsw_sp_port
,
1635 MLXSW_REG_QEEC_HIERARCY_TC
, i
, i
,
1641 /* Make sure the max shaper is disabled in all hierarcies that
1644 err
= mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port
,
1645 MLXSW_REG_QEEC_HIERARCY_PORT
, 0, 0,
1646 MLXSW_REG_QEEC_MAS_DIS
);
1649 for (i
= 0; i
< IEEE_8021QAZ_MAX_TCS
; i
++) {
1650 err
= mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port
,
1651 MLXSW_REG_QEEC_HIERARCY_SUBGROUP
,
1653 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_TC
,
1661 MLXSW_REG_QEEC_MAS_DIS
);
1666 /* Map all priorities to traffic class 0. */
1667 for (i
= 0; i
< IEEE_8021QAZ_MAX_TCS
; i
++) {
1668 err
= mlxsw_sp_port_prio_tc_set(mlxsw_sp_port
, i
, 0);
1676 static int mlxsw_sp_port_create(struct mlxsw_sp
*mlxsw_sp
, u8 local_port
,
1677 bool split
, u8 module
, u8 width
, u8 lane
)
1679 struct mlxsw_sp_port
*mlxsw_sp_port
;
1680 struct net_device
*dev
;
1684 dev
= alloc_etherdev(sizeof(struct mlxsw_sp_port
));
1687 mlxsw_sp_port
= netdev_priv(dev
);
1688 mlxsw_sp_port
->dev
= dev
;
1689 mlxsw_sp_port
->mlxsw_sp
= mlxsw_sp
;
1690 mlxsw_sp_port
->local_port
= local_port
;
1691 mlxsw_sp_port
->split
= split
;
1692 mlxsw_sp_port
->mapping
.module
= module
;
1693 mlxsw_sp_port
->mapping
.width
= width
;
1694 mlxsw_sp_port
->mapping
.lane
= lane
;
1695 bytes
= DIV_ROUND_UP(VLAN_N_VID
, BITS_PER_BYTE
);
1696 mlxsw_sp_port
->active_vlans
= kzalloc(bytes
, GFP_KERNEL
);
1697 if (!mlxsw_sp_port
->active_vlans
) {
1699 goto err_port_active_vlans_alloc
;
1701 mlxsw_sp_port
->untagged_vlans
= kzalloc(bytes
, GFP_KERNEL
);
1702 if (!mlxsw_sp_port
->untagged_vlans
) {
1704 goto err_port_untagged_vlans_alloc
;
1706 INIT_LIST_HEAD(&mlxsw_sp_port
->vports_list
);
1708 mlxsw_sp_port
->pcpu_stats
=
1709 netdev_alloc_pcpu_stats(struct mlxsw_sp_port_pcpu_stats
);
1710 if (!mlxsw_sp_port
->pcpu_stats
) {
1712 goto err_alloc_stats
;
1715 dev
->netdev_ops
= &mlxsw_sp_port_netdev_ops
;
1716 dev
->ethtool_ops
= &mlxsw_sp_port_ethtool_ops
;
1718 err
= mlxsw_sp_port_dev_addr_init(mlxsw_sp_port
);
1720 dev_err(mlxsw_sp
->bus_info
->dev
, "Port %d: Unable to init port mac address\n",
1721 mlxsw_sp_port
->local_port
);
1722 goto err_dev_addr_init
;
1725 netif_carrier_off(dev
);
1727 dev
->features
|= NETIF_F_NETNS_LOCAL
| NETIF_F_LLTX
| NETIF_F_SG
|
1728 NETIF_F_HW_VLAN_CTAG_FILTER
;
1730 /* Each packet needs to have a Tx header (metadata) on top all other
1733 dev
->hard_header_len
+= MLXSW_TXHDR_LEN
;
1735 err
= mlxsw_sp_port_system_port_mapping_set(mlxsw_sp_port
);
1737 dev_err(mlxsw_sp
->bus_info
->dev
, "Port %d: Failed to set system port mapping\n",
1738 mlxsw_sp_port
->local_port
);
1739 goto err_port_system_port_mapping_set
;
1742 err
= mlxsw_sp_port_swid_set(mlxsw_sp_port
, 0);
1744 dev_err(mlxsw_sp
->bus_info
->dev
, "Port %d: Failed to set SWID\n",
1745 mlxsw_sp_port
->local_port
);
1746 goto err_port_swid_set
;
1749 err
= mlxsw_sp_port_speed_by_width_set(mlxsw_sp_port
, width
);
1751 dev_err(mlxsw_sp
->bus_info
->dev
, "Port %d: Failed to enable speeds\n",
1752 mlxsw_sp_port
->local_port
);
1753 goto err_port_speed_by_width_set
;
1756 err
= mlxsw_sp_port_mtu_set(mlxsw_sp_port
, ETH_DATA_LEN
);
1758 dev_err(mlxsw_sp
->bus_info
->dev
, "Port %d: Failed to set MTU\n",
1759 mlxsw_sp_port
->local_port
);
1760 goto err_port_mtu_set
;
1763 err
= mlxsw_sp_port_admin_status_set(mlxsw_sp_port
, false);
1765 goto err_port_admin_status_set
;
1767 err
= mlxsw_sp_port_buffers_init(mlxsw_sp_port
);
1769 dev_err(mlxsw_sp
->bus_info
->dev
, "Port %d: Failed to initialize buffers\n",
1770 mlxsw_sp_port
->local_port
);
1771 goto err_port_buffers_init
;
1774 err
= mlxsw_sp_port_ets_init(mlxsw_sp_port
);
1776 dev_err(mlxsw_sp
->bus_info
->dev
, "Port %d: Failed to initialize ETS\n",
1777 mlxsw_sp_port
->local_port
);
1778 goto err_port_ets_init
;
1781 /* ETS and buffers must be initialized before DCB. */
1782 err
= mlxsw_sp_port_dcb_init(mlxsw_sp_port
);
1784 dev_err(mlxsw_sp
->bus_info
->dev
, "Port %d: Failed to initialize DCB\n",
1785 mlxsw_sp_port
->local_port
);
1786 goto err_port_dcb_init
;
1789 mlxsw_sp_port_switchdev_init(mlxsw_sp_port
);
1790 err
= register_netdev(dev
);
1792 dev_err(mlxsw_sp
->bus_info
->dev
, "Port %d: Failed to register netdev\n",
1793 mlxsw_sp_port
->local_port
);
1794 goto err_register_netdev
;
1797 err
= mlxsw_core_port_init(mlxsw_sp
->core
, &mlxsw_sp_port
->core_port
,
1798 mlxsw_sp_port
->local_port
, dev
,
1799 mlxsw_sp_port
->split
, module
);
1801 dev_err(mlxsw_sp
->bus_info
->dev
, "Port %d: Failed to init core port\n",
1802 mlxsw_sp_port
->local_port
);
1803 goto err_core_port_init
;
1806 err
= mlxsw_sp_port_vlan_init(mlxsw_sp_port
);
1808 goto err_port_vlan_init
;
1810 mlxsw_sp
->ports
[local_port
] = mlxsw_sp_port
;
1814 mlxsw_core_port_fini(&mlxsw_sp_port
->core_port
);
1816 unregister_netdev(dev
);
1817 err_register_netdev
:
1820 err_port_buffers_init
:
1821 err_port_admin_status_set
:
1823 err_port_speed_by_width_set
:
1825 err_port_system_port_mapping_set
:
1827 free_percpu(mlxsw_sp_port
->pcpu_stats
);
1829 kfree(mlxsw_sp_port
->untagged_vlans
);
1830 err_port_untagged_vlans_alloc
:
1831 kfree(mlxsw_sp_port
->active_vlans
);
1832 err_port_active_vlans_alloc
:
1837 static void mlxsw_sp_port_vports_fini(struct mlxsw_sp_port
*mlxsw_sp_port
)
1839 struct net_device
*dev
= mlxsw_sp_port
->dev
;
1840 struct mlxsw_sp_port
*mlxsw_sp_vport
, *tmp
;
1842 list_for_each_entry_safe(mlxsw_sp_vport
, tmp
,
1843 &mlxsw_sp_port
->vports_list
, vport
.list
) {
1844 u16 vid
= mlxsw_sp_vport_vid_get(mlxsw_sp_vport
);
1846 /* vPorts created for VLAN devices should already be gone
1847 * by now, since we unregistered the port netdev.
1849 WARN_ON(is_vlan_dev(mlxsw_sp_vport
->dev
));
1850 mlxsw_sp_port_kill_vid(dev
, 0, vid
);
1854 static void mlxsw_sp_port_remove(struct mlxsw_sp
*mlxsw_sp
, u8 local_port
)
1856 struct mlxsw_sp_port
*mlxsw_sp_port
= mlxsw_sp
->ports
[local_port
];
1860 mlxsw_sp
->ports
[local_port
] = NULL
;
1861 mlxsw_core_port_fini(&mlxsw_sp_port
->core_port
);
1862 unregister_netdev(mlxsw_sp_port
->dev
); /* This calls ndo_stop */
1863 mlxsw_sp_port_dcb_fini(mlxsw_sp_port
);
1864 mlxsw_sp_port_vports_fini(mlxsw_sp_port
);
1865 mlxsw_sp_port_switchdev_fini(mlxsw_sp_port
);
1866 mlxsw_sp_port_swid_set(mlxsw_sp_port
, MLXSW_PORT_SWID_DISABLED_PORT
);
1867 mlxsw_sp_port_module_unmap(mlxsw_sp
, mlxsw_sp_port
->local_port
);
1868 free_percpu(mlxsw_sp_port
->pcpu_stats
);
1869 kfree(mlxsw_sp_port
->untagged_vlans
);
1870 kfree(mlxsw_sp_port
->active_vlans
);
1871 free_netdev(mlxsw_sp_port
->dev
);
1874 static void mlxsw_sp_ports_remove(struct mlxsw_sp
*mlxsw_sp
)
1878 for (i
= 1; i
< MLXSW_PORT_MAX_PORTS
; i
++)
1879 mlxsw_sp_port_remove(mlxsw_sp
, i
);
1880 kfree(mlxsw_sp
->ports
);
1883 static int mlxsw_sp_ports_create(struct mlxsw_sp
*mlxsw_sp
)
1885 u8 module
, width
, lane
;
1890 alloc_size
= sizeof(struct mlxsw_sp_port
*) * MLXSW_PORT_MAX_PORTS
;
1891 mlxsw_sp
->ports
= kzalloc(alloc_size
, GFP_KERNEL
);
1892 if (!mlxsw_sp
->ports
)
1895 for (i
= 1; i
< MLXSW_PORT_MAX_PORTS
; i
++) {
1896 err
= mlxsw_sp_port_module_info_get(mlxsw_sp
, i
, &module
,
1899 goto err_port_module_info_get
;
1902 mlxsw_sp
->port_to_module
[i
] = module
;
1903 err
= mlxsw_sp_port_create(mlxsw_sp
, i
, false, module
, width
,
1906 goto err_port_create
;
1911 err_port_module_info_get
:
1912 for (i
--; i
>= 1; i
--)
1913 mlxsw_sp_port_remove(mlxsw_sp
, i
);
1914 kfree(mlxsw_sp
->ports
);
1918 static u8
mlxsw_sp_cluster_base_port_get(u8 local_port
)
1920 u8 offset
= (local_port
- 1) % MLXSW_SP_PORTS_PER_CLUSTER_MAX
;
1922 return local_port
- offset
;
1925 static int mlxsw_sp_port_split_create(struct mlxsw_sp
*mlxsw_sp
, u8 base_port
,
1926 u8 module
, unsigned int count
)
1928 u8 width
= MLXSW_PORT_MODULE_MAX_WIDTH
/ count
;
1931 for (i
= 0; i
< count
; i
++) {
1932 err
= mlxsw_sp_port_module_map(mlxsw_sp
, base_port
+ i
, module
,
1935 goto err_port_module_map
;
1938 for (i
= 0; i
< count
; i
++) {
1939 err
= __mlxsw_sp_port_swid_set(mlxsw_sp
, base_port
+ i
, 0);
1941 goto err_port_swid_set
;
1944 for (i
= 0; i
< count
; i
++) {
1945 err
= mlxsw_sp_port_create(mlxsw_sp
, base_port
+ i
, true,
1946 module
, width
, i
* width
);
1948 goto err_port_create
;
1954 for (i
--; i
>= 0; i
--)
1955 mlxsw_sp_port_remove(mlxsw_sp
, base_port
+ i
);
1958 for (i
--; i
>= 0; i
--)
1959 __mlxsw_sp_port_swid_set(mlxsw_sp
, base_port
+ i
,
1960 MLXSW_PORT_SWID_DISABLED_PORT
);
1962 err_port_module_map
:
1963 for (i
--; i
>= 0; i
--)
1964 mlxsw_sp_port_module_unmap(mlxsw_sp
, base_port
+ i
);
1968 static void mlxsw_sp_port_unsplit_create(struct mlxsw_sp
*mlxsw_sp
,
1969 u8 base_port
, unsigned int count
)
1971 u8 local_port
, module
, width
= MLXSW_PORT_MODULE_MAX_WIDTH
;
1974 /* Split by four means we need to re-create two ports, otherwise
1979 for (i
= 0; i
< count
; i
++) {
1980 local_port
= base_port
+ i
* 2;
1981 module
= mlxsw_sp
->port_to_module
[local_port
];
1983 mlxsw_sp_port_module_map(mlxsw_sp
, local_port
, module
, width
,
1987 for (i
= 0; i
< count
; i
++)
1988 __mlxsw_sp_port_swid_set(mlxsw_sp
, base_port
+ i
* 2, 0);
1990 for (i
= 0; i
< count
; i
++) {
1991 local_port
= base_port
+ i
* 2;
1992 module
= mlxsw_sp
->port_to_module
[local_port
];
1994 mlxsw_sp_port_create(mlxsw_sp
, local_port
, false, module
,
1999 static int mlxsw_sp_port_split(struct mlxsw_core
*mlxsw_core
, u8 local_port
,
2002 struct mlxsw_sp
*mlxsw_sp
= mlxsw_core_driver_priv(mlxsw_core
);
2003 struct mlxsw_sp_port
*mlxsw_sp_port
;
2004 u8 module
, cur_width
, base_port
;
2008 mlxsw_sp_port
= mlxsw_sp
->ports
[local_port
];
2009 if (!mlxsw_sp_port
) {
2010 dev_err(mlxsw_sp
->bus_info
->dev
, "Port number \"%d\" does not exist\n",
2015 module
= mlxsw_sp_port
->mapping
.module
;
2016 cur_width
= mlxsw_sp_port
->mapping
.width
;
2018 if (count
!= 2 && count
!= 4) {
2019 netdev_err(mlxsw_sp_port
->dev
, "Port can only be split into 2 or 4 ports\n");
2023 if (cur_width
!= MLXSW_PORT_MODULE_MAX_WIDTH
) {
2024 netdev_err(mlxsw_sp_port
->dev
, "Port cannot be split further\n");
2028 /* Make sure we have enough slave (even) ports for the split. */
2030 base_port
= local_port
;
2031 if (mlxsw_sp
->ports
[base_port
+ 1]) {
2032 netdev_err(mlxsw_sp_port
->dev
, "Invalid split configuration\n");
2036 base_port
= mlxsw_sp_cluster_base_port_get(local_port
);
2037 if (mlxsw_sp
->ports
[base_port
+ 1] ||
2038 mlxsw_sp
->ports
[base_port
+ 3]) {
2039 netdev_err(mlxsw_sp_port
->dev
, "Invalid split configuration\n");
2044 for (i
= 0; i
< count
; i
++)
2045 mlxsw_sp_port_remove(mlxsw_sp
, base_port
+ i
);
2047 err
= mlxsw_sp_port_split_create(mlxsw_sp
, base_port
, module
, count
);
2049 dev_err(mlxsw_sp
->bus_info
->dev
, "Failed to create split ports\n");
2050 goto err_port_split_create
;
2055 err_port_split_create
:
2056 mlxsw_sp_port_unsplit_create(mlxsw_sp
, base_port
, count
);
2060 static int mlxsw_sp_port_unsplit(struct mlxsw_core
*mlxsw_core
, u8 local_port
)
2062 struct mlxsw_sp
*mlxsw_sp
= mlxsw_core_driver_priv(mlxsw_core
);
2063 struct mlxsw_sp_port
*mlxsw_sp_port
;
2064 u8 cur_width
, base_port
;
2068 mlxsw_sp_port
= mlxsw_sp
->ports
[local_port
];
2069 if (!mlxsw_sp_port
) {
2070 dev_err(mlxsw_sp
->bus_info
->dev
, "Port number \"%d\" does not exist\n",
2075 if (!mlxsw_sp_port
->split
) {
2076 netdev_err(mlxsw_sp_port
->dev
, "Port wasn't split\n");
2080 cur_width
= mlxsw_sp_port
->mapping
.width
;
2081 count
= cur_width
== 1 ? 4 : 2;
2083 base_port
= mlxsw_sp_cluster_base_port_get(local_port
);
2085 /* Determine which ports to remove. */
2086 if (count
== 2 && local_port
>= base_port
+ 2)
2087 base_port
= base_port
+ 2;
2089 for (i
= 0; i
< count
; i
++)
2090 mlxsw_sp_port_remove(mlxsw_sp
, base_port
+ i
);
2092 mlxsw_sp_port_unsplit_create(mlxsw_sp
, base_port
, count
);
2097 static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info
*reg
,
2098 char *pude_pl
, void *priv
)
2100 struct mlxsw_sp
*mlxsw_sp
= priv
;
2101 struct mlxsw_sp_port
*mlxsw_sp_port
;
2102 enum mlxsw_reg_pude_oper_status status
;
2105 local_port
= mlxsw_reg_pude_local_port_get(pude_pl
);
2106 mlxsw_sp_port
= mlxsw_sp
->ports
[local_port
];
2107 if (!mlxsw_sp_port
) {
2108 dev_warn(mlxsw_sp
->bus_info
->dev
, "Port %d: Link event received for non-existent port\n",
2113 status
= mlxsw_reg_pude_oper_status_get(pude_pl
);
2114 if (status
== MLXSW_PORT_OPER_STATUS_UP
) {
2115 netdev_info(mlxsw_sp_port
->dev
, "link up\n");
2116 netif_carrier_on(mlxsw_sp_port
->dev
);
2118 netdev_info(mlxsw_sp_port
->dev
, "link down\n");
2119 netif_carrier_off(mlxsw_sp_port
->dev
);
2123 static struct mlxsw_event_listener mlxsw_sp_pude_event
= {
2124 .func
= mlxsw_sp_pude_event_func
,
2125 .trap_id
= MLXSW_TRAP_ID_PUDE
,
2128 static int mlxsw_sp_event_register(struct mlxsw_sp
*mlxsw_sp
,
2129 enum mlxsw_event_trap_id trap_id
)
2131 struct mlxsw_event_listener
*el
;
2132 char hpkt_pl
[MLXSW_REG_HPKT_LEN
];
2136 case MLXSW_TRAP_ID_PUDE
:
2137 el
= &mlxsw_sp_pude_event
;
2140 err
= mlxsw_core_event_listener_register(mlxsw_sp
->core
, el
, mlxsw_sp
);
2144 mlxsw_reg_hpkt_pack(hpkt_pl
, MLXSW_REG_HPKT_ACTION_FORWARD
, trap_id
);
2145 err
= mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(hpkt
), hpkt_pl
);
2147 goto err_event_trap_set
;
2152 mlxsw_core_event_listener_unregister(mlxsw_sp
->core
, el
, mlxsw_sp
);
2156 static void mlxsw_sp_event_unregister(struct mlxsw_sp
*mlxsw_sp
,
2157 enum mlxsw_event_trap_id trap_id
)
2159 struct mlxsw_event_listener
*el
;
2162 case MLXSW_TRAP_ID_PUDE
:
2163 el
= &mlxsw_sp_pude_event
;
2166 mlxsw_core_event_listener_unregister(mlxsw_sp
->core
, el
, mlxsw_sp
);
2169 static void mlxsw_sp_rx_listener_func(struct sk_buff
*skb
, u8 local_port
,
2172 struct mlxsw_sp
*mlxsw_sp
= priv
;
2173 struct mlxsw_sp_port
*mlxsw_sp_port
= mlxsw_sp
->ports
[local_port
];
2174 struct mlxsw_sp_port_pcpu_stats
*pcpu_stats
;
2176 if (unlikely(!mlxsw_sp_port
)) {
2177 dev_warn_ratelimited(mlxsw_sp
->bus_info
->dev
, "Port %d: skb received for non-existent port\n",
2182 skb
->dev
= mlxsw_sp_port
->dev
;
2184 pcpu_stats
= this_cpu_ptr(mlxsw_sp_port
->pcpu_stats
);
2185 u64_stats_update_begin(&pcpu_stats
->syncp
);
2186 pcpu_stats
->rx_packets
++;
2187 pcpu_stats
->rx_bytes
+= skb
->len
;
2188 u64_stats_update_end(&pcpu_stats
->syncp
);
2190 skb
->protocol
= eth_type_trans(skb
, skb
->dev
);
2191 netif_receive_skb(skb
);
2194 static const struct mlxsw_rx_listener mlxsw_sp_rx_listener
[] = {
2196 .func
= mlxsw_sp_rx_listener_func
,
2197 .local_port
= MLXSW_PORT_DONT_CARE
,
2198 .trap_id
= MLXSW_TRAP_ID_FDB_MC
,
2200 /* Traps for specific L2 packet types, not trapped as FDB MC */
2202 .func
= mlxsw_sp_rx_listener_func
,
2203 .local_port
= MLXSW_PORT_DONT_CARE
,
2204 .trap_id
= MLXSW_TRAP_ID_STP
,
2207 .func
= mlxsw_sp_rx_listener_func
,
2208 .local_port
= MLXSW_PORT_DONT_CARE
,
2209 .trap_id
= MLXSW_TRAP_ID_LACP
,
2212 .func
= mlxsw_sp_rx_listener_func
,
2213 .local_port
= MLXSW_PORT_DONT_CARE
,
2214 .trap_id
= MLXSW_TRAP_ID_EAPOL
,
2217 .func
= mlxsw_sp_rx_listener_func
,
2218 .local_port
= MLXSW_PORT_DONT_CARE
,
2219 .trap_id
= MLXSW_TRAP_ID_LLDP
,
2222 .func
= mlxsw_sp_rx_listener_func
,
2223 .local_port
= MLXSW_PORT_DONT_CARE
,
2224 .trap_id
= MLXSW_TRAP_ID_MMRP
,
2227 .func
= mlxsw_sp_rx_listener_func
,
2228 .local_port
= MLXSW_PORT_DONT_CARE
,
2229 .trap_id
= MLXSW_TRAP_ID_MVRP
,
2232 .func
= mlxsw_sp_rx_listener_func
,
2233 .local_port
= MLXSW_PORT_DONT_CARE
,
2234 .trap_id
= MLXSW_TRAP_ID_RPVST
,
2237 .func
= mlxsw_sp_rx_listener_func
,
2238 .local_port
= MLXSW_PORT_DONT_CARE
,
2239 .trap_id
= MLXSW_TRAP_ID_DHCP
,
2242 .func
= mlxsw_sp_rx_listener_func
,
2243 .local_port
= MLXSW_PORT_DONT_CARE
,
2244 .trap_id
= MLXSW_TRAP_ID_IGMP_QUERY
,
2247 .func
= mlxsw_sp_rx_listener_func
,
2248 .local_port
= MLXSW_PORT_DONT_CARE
,
2249 .trap_id
= MLXSW_TRAP_ID_IGMP_V1_REPORT
,
2252 .func
= mlxsw_sp_rx_listener_func
,
2253 .local_port
= MLXSW_PORT_DONT_CARE
,
2254 .trap_id
= MLXSW_TRAP_ID_IGMP_V2_REPORT
,
2257 .func
= mlxsw_sp_rx_listener_func
,
2258 .local_port
= MLXSW_PORT_DONT_CARE
,
2259 .trap_id
= MLXSW_TRAP_ID_IGMP_V2_LEAVE
,
2262 .func
= mlxsw_sp_rx_listener_func
,
2263 .local_port
= MLXSW_PORT_DONT_CARE
,
2264 .trap_id
= MLXSW_TRAP_ID_IGMP_V3_REPORT
,
2268 static int mlxsw_sp_traps_init(struct mlxsw_sp
*mlxsw_sp
)
2270 char htgt_pl
[MLXSW_REG_HTGT_LEN
];
2271 char hpkt_pl
[MLXSW_REG_HPKT_LEN
];
2275 mlxsw_reg_htgt_pack(htgt_pl
, MLXSW_REG_HTGT_TRAP_GROUP_RX
);
2276 err
= mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(htgt
), htgt_pl
);
2280 mlxsw_reg_htgt_pack(htgt_pl
, MLXSW_REG_HTGT_TRAP_GROUP_CTRL
);
2281 err
= mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(htgt
), htgt_pl
);
2285 for (i
= 0; i
< ARRAY_SIZE(mlxsw_sp_rx_listener
); i
++) {
2286 err
= mlxsw_core_rx_listener_register(mlxsw_sp
->core
,
2287 &mlxsw_sp_rx_listener
[i
],
2290 goto err_rx_listener_register
;
2292 mlxsw_reg_hpkt_pack(hpkt_pl
, MLXSW_REG_HPKT_ACTION_TRAP_TO_CPU
,
2293 mlxsw_sp_rx_listener
[i
].trap_id
);
2294 err
= mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(hpkt
), hpkt_pl
);
2296 goto err_rx_trap_set
;
2301 mlxsw_core_rx_listener_unregister(mlxsw_sp
->core
,
2302 &mlxsw_sp_rx_listener
[i
],
2304 err_rx_listener_register
:
2305 for (i
--; i
>= 0; i
--) {
2306 mlxsw_reg_hpkt_pack(hpkt_pl
, MLXSW_REG_HPKT_ACTION_FORWARD
,
2307 mlxsw_sp_rx_listener
[i
].trap_id
);
2308 mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(hpkt
), hpkt_pl
);
2310 mlxsw_core_rx_listener_unregister(mlxsw_sp
->core
,
2311 &mlxsw_sp_rx_listener
[i
],
2317 static void mlxsw_sp_traps_fini(struct mlxsw_sp
*mlxsw_sp
)
2319 char hpkt_pl
[MLXSW_REG_HPKT_LEN
];
2322 for (i
= 0; i
< ARRAY_SIZE(mlxsw_sp_rx_listener
); i
++) {
2323 mlxsw_reg_hpkt_pack(hpkt_pl
, MLXSW_REG_HPKT_ACTION_FORWARD
,
2324 mlxsw_sp_rx_listener
[i
].trap_id
);
2325 mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(hpkt
), hpkt_pl
);
2327 mlxsw_core_rx_listener_unregister(mlxsw_sp
->core
,
2328 &mlxsw_sp_rx_listener
[i
],
2333 static int __mlxsw_sp_flood_init(struct mlxsw_core
*mlxsw_core
,
2334 enum mlxsw_reg_sfgc_type type
,
2335 enum mlxsw_reg_sfgc_bridge_type bridge_type
)
2337 enum mlxsw_flood_table_type table_type
;
2338 enum mlxsw_sp_flood_table flood_table
;
2339 char sfgc_pl
[MLXSW_REG_SFGC_LEN
];
2341 if (bridge_type
== MLXSW_REG_SFGC_BRIDGE_TYPE_VFID
)
2342 table_type
= MLXSW_REG_SFGC_TABLE_TYPE_FID
;
2344 table_type
= MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST
;
2346 if (type
== MLXSW_REG_SFGC_TYPE_UNKNOWN_UNICAST
)
2347 flood_table
= MLXSW_SP_FLOOD_TABLE_UC
;
2349 flood_table
= MLXSW_SP_FLOOD_TABLE_BM
;
2351 mlxsw_reg_sfgc_pack(sfgc_pl
, type
, bridge_type
, table_type
,
2353 return mlxsw_reg_write(mlxsw_core
, MLXSW_REG(sfgc
), sfgc_pl
);
2356 static int mlxsw_sp_flood_init(struct mlxsw_sp
*mlxsw_sp
)
2360 for (type
= 0; type
< MLXSW_REG_SFGC_TYPE_MAX
; type
++) {
2361 if (type
== MLXSW_REG_SFGC_TYPE_RESERVED
)
2364 err
= __mlxsw_sp_flood_init(mlxsw_sp
->core
, type
,
2365 MLXSW_REG_SFGC_BRIDGE_TYPE_VFID
);
2369 err
= __mlxsw_sp_flood_init(mlxsw_sp
->core
, type
,
2370 MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID
);
2378 static int mlxsw_sp_lag_init(struct mlxsw_sp
*mlxsw_sp
)
2380 char slcr_pl
[MLXSW_REG_SLCR_LEN
];
2382 mlxsw_reg_slcr_pack(slcr_pl
, MLXSW_REG_SLCR_LAG_HASH_SMAC
|
2383 MLXSW_REG_SLCR_LAG_HASH_DMAC
|
2384 MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE
|
2385 MLXSW_REG_SLCR_LAG_HASH_VLANID
|
2386 MLXSW_REG_SLCR_LAG_HASH_SIP
|
2387 MLXSW_REG_SLCR_LAG_HASH_DIP
|
2388 MLXSW_REG_SLCR_LAG_HASH_SPORT
|
2389 MLXSW_REG_SLCR_LAG_HASH_DPORT
|
2390 MLXSW_REG_SLCR_LAG_HASH_IPPROTO
);
2391 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(slcr
), slcr_pl
);
2394 static int mlxsw_sp_init(struct mlxsw_core
*mlxsw_core
,
2395 const struct mlxsw_bus_info
*mlxsw_bus_info
)
2397 struct mlxsw_sp
*mlxsw_sp
= mlxsw_core_driver_priv(mlxsw_core
);
2400 mlxsw_sp
->core
= mlxsw_core
;
2401 mlxsw_sp
->bus_info
= mlxsw_bus_info
;
2402 INIT_LIST_HEAD(&mlxsw_sp
->port_vfids
.list
);
2403 INIT_LIST_HEAD(&mlxsw_sp
->br_vfids
.list
);
2404 INIT_LIST_HEAD(&mlxsw_sp
->br_mids
.list
);
2406 err
= mlxsw_sp_base_mac_get(mlxsw_sp
);
2408 dev_err(mlxsw_sp
->bus_info
->dev
, "Failed to get base mac\n");
2412 err
= mlxsw_sp_ports_create(mlxsw_sp
);
2414 dev_err(mlxsw_sp
->bus_info
->dev
, "Failed to create ports\n");
2418 err
= mlxsw_sp_event_register(mlxsw_sp
, MLXSW_TRAP_ID_PUDE
);
2420 dev_err(mlxsw_sp
->bus_info
->dev
, "Failed to register for PUDE events\n");
2421 goto err_event_register
;
2424 err
= mlxsw_sp_traps_init(mlxsw_sp
);
2426 dev_err(mlxsw_sp
->bus_info
->dev
, "Failed to set traps for RX\n");
2427 goto err_rx_listener_register
;
2430 err
= mlxsw_sp_flood_init(mlxsw_sp
);
2432 dev_err(mlxsw_sp
->bus_info
->dev
, "Failed to initialize flood tables\n");
2433 goto err_flood_init
;
2436 err
= mlxsw_sp_buffers_init(mlxsw_sp
);
2438 dev_err(mlxsw_sp
->bus_info
->dev
, "Failed to initialize buffers\n");
2439 goto err_buffers_init
;
2442 err
= mlxsw_sp_lag_init(mlxsw_sp
);
2444 dev_err(mlxsw_sp
->bus_info
->dev
, "Failed to initialize LAG\n");
2448 err
= mlxsw_sp_switchdev_init(mlxsw_sp
);
2450 dev_err(mlxsw_sp
->bus_info
->dev
, "Failed to initialize switchdev\n");
2451 goto err_switchdev_init
;
2458 mlxsw_sp_buffers_fini(mlxsw_sp
);
2461 mlxsw_sp_traps_fini(mlxsw_sp
);
2462 err_rx_listener_register
:
2463 mlxsw_sp_event_unregister(mlxsw_sp
, MLXSW_TRAP_ID_PUDE
);
2465 mlxsw_sp_ports_remove(mlxsw_sp
);
2469 static void mlxsw_sp_fini(struct mlxsw_core
*mlxsw_core
)
2471 struct mlxsw_sp
*mlxsw_sp
= mlxsw_core_driver_priv(mlxsw_core
);
2473 mlxsw_sp_switchdev_fini(mlxsw_sp
);
2474 mlxsw_sp_buffers_fini(mlxsw_sp
);
2475 mlxsw_sp_traps_fini(mlxsw_sp
);
2476 mlxsw_sp_event_unregister(mlxsw_sp
, MLXSW_TRAP_ID_PUDE
);
2477 mlxsw_sp_ports_remove(mlxsw_sp
);
2480 static struct mlxsw_config_profile mlxsw_sp_config_profile
= {
2481 .used_max_vepa_channels
= 1,
2482 .max_vepa_channels
= 0,
2484 .max_lag
= MLXSW_SP_LAG_MAX
,
2485 .used_max_port_per_lag
= 1,
2486 .max_port_per_lag
= MLXSW_SP_PORT_PER_LAG_MAX
,
2488 .max_mid
= MLXSW_SP_MID_MAX
,
2491 .used_max_system_port
= 1,
2492 .max_system_port
= 64,
2493 .used_max_vlan_groups
= 1,
2494 .max_vlan_groups
= 127,
2495 .used_max_regions
= 1,
2497 .used_flood_tables
= 1,
2498 .used_flood_mode
= 1,
2500 .max_fid_offset_flood_tables
= 2,
2501 .fid_offset_flood_table_size
= VLAN_N_VID
- 1,
2502 .max_fid_flood_tables
= 2,
2503 .fid_flood_table_size
= MLXSW_SP_VFID_MAX
,
2504 .used_max_ib_mc
= 1,
2511 .type
= MLXSW_PORT_SWID_TYPE_ETH
,
2516 static struct mlxsw_driver mlxsw_sp_driver
= {
2517 .kind
= MLXSW_DEVICE_KIND_SPECTRUM
,
2518 .owner
= THIS_MODULE
,
2519 .priv_size
= sizeof(struct mlxsw_sp
),
2520 .init
= mlxsw_sp_init
,
2521 .fini
= mlxsw_sp_fini
,
2522 .port_split
= mlxsw_sp_port_split
,
2523 .port_unsplit
= mlxsw_sp_port_unsplit
,
2524 .sb_pool_get
= mlxsw_sp_sb_pool_get
,
2525 .sb_pool_set
= mlxsw_sp_sb_pool_set
,
2526 .sb_port_pool_get
= mlxsw_sp_sb_port_pool_get
,
2527 .sb_port_pool_set
= mlxsw_sp_sb_port_pool_set
,
2528 .sb_tc_pool_bind_get
= mlxsw_sp_sb_tc_pool_bind_get
,
2529 .sb_tc_pool_bind_set
= mlxsw_sp_sb_tc_pool_bind_set
,
2530 .sb_occ_snapshot
= mlxsw_sp_sb_occ_snapshot
,
2531 .sb_occ_max_clear
= mlxsw_sp_sb_occ_max_clear
,
2532 .sb_occ_port_pool_get
= mlxsw_sp_sb_occ_port_pool_get
,
2533 .sb_occ_tc_port_bind_get
= mlxsw_sp_sb_occ_tc_port_bind_get
,
2534 .txhdr_construct
= mlxsw_sp_txhdr_construct
,
2535 .txhdr_len
= MLXSW_TXHDR_LEN
,
2536 .profile
= &mlxsw_sp_config_profile
,
2540 mlxsw_sp_port_fdb_flush_by_port(const struct mlxsw_sp_port
*mlxsw_sp_port
)
2542 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
2543 char sfdf_pl
[MLXSW_REG_SFDF_LEN
];
2545 mlxsw_reg_sfdf_pack(sfdf_pl
, MLXSW_REG_SFDF_FLUSH_PER_PORT
);
2546 mlxsw_reg_sfdf_system_port_set(sfdf_pl
, mlxsw_sp_port
->local_port
);
2548 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(sfdf
), sfdf_pl
);
2552 mlxsw_sp_port_fdb_flush_by_port_fid(const struct mlxsw_sp_port
*mlxsw_sp_port
,
2555 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
2556 char sfdf_pl
[MLXSW_REG_SFDF_LEN
];
2558 mlxsw_reg_sfdf_pack(sfdf_pl
, MLXSW_REG_SFDF_FLUSH_PER_PORT_AND_FID
);
2559 mlxsw_reg_sfdf_fid_set(sfdf_pl
, fid
);
2560 mlxsw_reg_sfdf_port_fid_system_port_set(sfdf_pl
,
2561 mlxsw_sp_port
->local_port
);
2563 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(sfdf
), sfdf_pl
);
2567 mlxsw_sp_port_fdb_flush_by_lag_id(const struct mlxsw_sp_port
*mlxsw_sp_port
)
2569 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
2570 char sfdf_pl
[MLXSW_REG_SFDF_LEN
];
2572 mlxsw_reg_sfdf_pack(sfdf_pl
, MLXSW_REG_SFDF_FLUSH_PER_LAG
);
2573 mlxsw_reg_sfdf_lag_id_set(sfdf_pl
, mlxsw_sp_port
->lag_id
);
2575 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(sfdf
), sfdf_pl
);
2579 mlxsw_sp_port_fdb_flush_by_lag_id_fid(const struct mlxsw_sp_port
*mlxsw_sp_port
,
2582 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
2583 char sfdf_pl
[MLXSW_REG_SFDF_LEN
];
2585 mlxsw_reg_sfdf_pack(sfdf_pl
, MLXSW_REG_SFDF_FLUSH_PER_LAG_AND_FID
);
2586 mlxsw_reg_sfdf_fid_set(sfdf_pl
, fid
);
2587 mlxsw_reg_sfdf_lag_fid_lag_id_set(sfdf_pl
, mlxsw_sp_port
->lag_id
);
2589 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(sfdf
), sfdf_pl
);
2593 __mlxsw_sp_port_fdb_flush(const struct mlxsw_sp_port
*mlxsw_sp_port
)
2595 int err
, last_err
= 0;
2598 for (vid
= 1; vid
< VLAN_N_VID
- 1; vid
++) {
2599 err
= mlxsw_sp_port_fdb_flush_by_port_fid(mlxsw_sp_port
, vid
);
2608 __mlxsw_sp_port_fdb_flush_lagged(const struct mlxsw_sp_port
*mlxsw_sp_port
)
2610 int err
, last_err
= 0;
2613 for (vid
= 1; vid
< VLAN_N_VID
- 1; vid
++) {
2614 err
= mlxsw_sp_port_fdb_flush_by_lag_id_fid(mlxsw_sp_port
, vid
);
2622 static int mlxsw_sp_port_fdb_flush(struct mlxsw_sp_port
*mlxsw_sp_port
)
2624 if (!list_empty(&mlxsw_sp_port
->vports_list
))
2625 if (mlxsw_sp_port
->lagged
)
2626 return __mlxsw_sp_port_fdb_flush_lagged(mlxsw_sp_port
);
2628 return __mlxsw_sp_port_fdb_flush(mlxsw_sp_port
);
2630 if (mlxsw_sp_port
->lagged
)
2631 return mlxsw_sp_port_fdb_flush_by_lag_id(mlxsw_sp_port
);
2633 return mlxsw_sp_port_fdb_flush_by_port(mlxsw_sp_port
);
2636 static int mlxsw_sp_vport_fdb_flush(struct mlxsw_sp_port
*mlxsw_sp_vport
)
2638 u16 vfid
= mlxsw_sp_vport_vfid_get(mlxsw_sp_vport
);
2639 u16 fid
= mlxsw_sp_vfid_to_fid(vfid
);
2641 if (mlxsw_sp_vport
->lagged
)
2642 return mlxsw_sp_port_fdb_flush_by_lag_id_fid(mlxsw_sp_vport
,
2645 return mlxsw_sp_port_fdb_flush_by_port_fid(mlxsw_sp_vport
, fid
);
2648 static bool mlxsw_sp_port_dev_check(const struct net_device
*dev
)
2650 return dev
->netdev_ops
== &mlxsw_sp_port_netdev_ops
;
2653 static int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port
*mlxsw_sp_port
)
2655 struct net_device
*dev
= mlxsw_sp_port
->dev
;
2658 /* When port is not bridged untagged packets are tagged with
2659 * PVID=VID=1, thereby creating an implicit VLAN interface in
2660 * the device. Remove it and let bridge code take care of its
2663 err
= mlxsw_sp_port_kill_vid(dev
, 0, 1);
2667 mlxsw_sp_port
->learning
= 1;
2668 mlxsw_sp_port
->learning_sync
= 1;
2669 mlxsw_sp_port
->uc_flood
= 1;
2670 mlxsw_sp_port
->bridged
= 1;
2675 static int mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port
*mlxsw_sp_port
,
2678 struct net_device
*dev
= mlxsw_sp_port
->dev
;
2680 if (flush_fdb
&& mlxsw_sp_port_fdb_flush(mlxsw_sp_port
))
2681 netdev_err(mlxsw_sp_port
->dev
, "Failed to flush FDB\n");
2683 mlxsw_sp_port_pvid_set(mlxsw_sp_port
, 1);
2685 mlxsw_sp_port
->learning
= 0;
2686 mlxsw_sp_port
->learning_sync
= 0;
2687 mlxsw_sp_port
->uc_flood
= 0;
2688 mlxsw_sp_port
->bridged
= 0;
2690 /* Add implicit VLAN interface in the device, so that untagged
2691 * packets will be classified to the default vFID.
2693 return mlxsw_sp_port_add_vid(dev
, 0, 1);
2696 static bool mlxsw_sp_master_bridge_check(struct mlxsw_sp
*mlxsw_sp
,
2697 struct net_device
*br_dev
)
2699 return !mlxsw_sp
->master_bridge
.dev
||
2700 mlxsw_sp
->master_bridge
.dev
== br_dev
;
2703 static void mlxsw_sp_master_bridge_inc(struct mlxsw_sp
*mlxsw_sp
,
2704 struct net_device
*br_dev
)
2706 mlxsw_sp
->master_bridge
.dev
= br_dev
;
2707 mlxsw_sp
->master_bridge
.ref_count
++;
2710 static void mlxsw_sp_master_bridge_dec(struct mlxsw_sp
*mlxsw_sp
,
2711 struct net_device
*br_dev
)
2713 if (--mlxsw_sp
->master_bridge
.ref_count
== 0)
2714 mlxsw_sp
->master_bridge
.dev
= NULL
;
2717 static int mlxsw_sp_lag_create(struct mlxsw_sp
*mlxsw_sp
, u16 lag_id
)
2719 char sldr_pl
[MLXSW_REG_SLDR_LEN
];
2721 mlxsw_reg_sldr_lag_create_pack(sldr_pl
, lag_id
);
2722 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(sldr
), sldr_pl
);
2725 static int mlxsw_sp_lag_destroy(struct mlxsw_sp
*mlxsw_sp
, u16 lag_id
)
2727 char sldr_pl
[MLXSW_REG_SLDR_LEN
];
2729 mlxsw_reg_sldr_lag_destroy_pack(sldr_pl
, lag_id
);
2730 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(sldr
), sldr_pl
);
2733 static int mlxsw_sp_lag_col_port_add(struct mlxsw_sp_port
*mlxsw_sp_port
,
2734 u16 lag_id
, u8 port_index
)
2736 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
2737 char slcor_pl
[MLXSW_REG_SLCOR_LEN
];
2739 mlxsw_reg_slcor_port_add_pack(slcor_pl
, mlxsw_sp_port
->local_port
,
2740 lag_id
, port_index
);
2741 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(slcor
), slcor_pl
);
2744 static int mlxsw_sp_lag_col_port_remove(struct mlxsw_sp_port
*mlxsw_sp_port
,
2747 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
2748 char slcor_pl
[MLXSW_REG_SLCOR_LEN
];
2750 mlxsw_reg_slcor_port_remove_pack(slcor_pl
, mlxsw_sp_port
->local_port
,
2752 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(slcor
), slcor_pl
);
2755 static int mlxsw_sp_lag_col_port_enable(struct mlxsw_sp_port
*mlxsw_sp_port
,
2758 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
2759 char slcor_pl
[MLXSW_REG_SLCOR_LEN
];
2761 mlxsw_reg_slcor_col_enable_pack(slcor_pl
, mlxsw_sp_port
->local_port
,
2763 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(slcor
), slcor_pl
);
2766 static int mlxsw_sp_lag_col_port_disable(struct mlxsw_sp_port
*mlxsw_sp_port
,
2769 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
2770 char slcor_pl
[MLXSW_REG_SLCOR_LEN
];
2772 mlxsw_reg_slcor_col_disable_pack(slcor_pl
, mlxsw_sp_port
->local_port
,
2774 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(slcor
), slcor_pl
);
2777 static int mlxsw_sp_lag_index_get(struct mlxsw_sp
*mlxsw_sp
,
2778 struct net_device
*lag_dev
,
2781 struct mlxsw_sp_upper
*lag
;
2782 int free_lag_id
= -1;
2785 for (i
= 0; i
< MLXSW_SP_LAG_MAX
; i
++) {
2786 lag
= mlxsw_sp_lag_get(mlxsw_sp
, i
);
2787 if (lag
->ref_count
) {
2788 if (lag
->dev
== lag_dev
) {
2792 } else if (free_lag_id
< 0) {
2796 if (free_lag_id
< 0)
2798 *p_lag_id
= free_lag_id
;
2803 mlxsw_sp_master_lag_check(struct mlxsw_sp
*mlxsw_sp
,
2804 struct net_device
*lag_dev
,
2805 struct netdev_lag_upper_info
*lag_upper_info
)
2809 if (mlxsw_sp_lag_index_get(mlxsw_sp
, lag_dev
, &lag_id
) != 0)
2811 if (lag_upper_info
->tx_type
!= NETDEV_LAG_TX_TYPE_HASH
)
2816 static int mlxsw_sp_port_lag_index_get(struct mlxsw_sp
*mlxsw_sp
,
2817 u16 lag_id
, u8
*p_port_index
)
2821 for (i
= 0; i
< MLXSW_SP_PORT_PER_LAG_MAX
; i
++) {
2822 if (!mlxsw_sp_port_lagged_get(mlxsw_sp
, lag_id
, i
)) {
2830 static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port
*mlxsw_sp_port
,
2831 struct net_device
*lag_dev
)
2833 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
2834 struct mlxsw_sp_upper
*lag
;
2839 err
= mlxsw_sp_lag_index_get(mlxsw_sp
, lag_dev
, &lag_id
);
2842 lag
= mlxsw_sp_lag_get(mlxsw_sp
, lag_id
);
2843 if (!lag
->ref_count
) {
2844 err
= mlxsw_sp_lag_create(mlxsw_sp
, lag_id
);
2850 err
= mlxsw_sp_port_lag_index_get(mlxsw_sp
, lag_id
, &port_index
);
2853 err
= mlxsw_sp_lag_col_port_add(mlxsw_sp_port
, lag_id
, port_index
);
2855 goto err_col_port_add
;
2856 err
= mlxsw_sp_lag_col_port_enable(mlxsw_sp_port
, lag_id
);
2858 goto err_col_port_enable
;
2860 mlxsw_core_lag_mapping_set(mlxsw_sp
->core
, lag_id
, port_index
,
2861 mlxsw_sp_port
->local_port
);
2862 mlxsw_sp_port
->lag_id
= lag_id
;
2863 mlxsw_sp_port
->lagged
= 1;
2867 err_col_port_enable
:
2868 mlxsw_sp_lag_col_port_remove(mlxsw_sp_port
, lag_id
);
2870 if (!lag
->ref_count
)
2871 mlxsw_sp_lag_destroy(mlxsw_sp
, lag_id
);
2875 static int mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port
*mlxsw_sp_vport
,
2876 struct net_device
*br_dev
,
2879 static int mlxsw_sp_port_lag_leave(struct mlxsw_sp_port
*mlxsw_sp_port
,
2880 struct net_device
*lag_dev
)
2882 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
2883 struct mlxsw_sp_port
*mlxsw_sp_vport
;
2884 struct mlxsw_sp_upper
*lag
;
2885 u16 lag_id
= mlxsw_sp_port
->lag_id
;
2888 if (!mlxsw_sp_port
->lagged
)
2890 lag
= mlxsw_sp_lag_get(mlxsw_sp
, lag_id
);
2891 WARN_ON(lag
->ref_count
== 0);
2893 err
= mlxsw_sp_lag_col_port_disable(mlxsw_sp_port
, lag_id
);
2896 err
= mlxsw_sp_lag_col_port_remove(mlxsw_sp_port
, lag_id
);
2900 /* In case we leave a LAG device that has bridges built on top,
2901 * then their teardown sequence is never issued and we need to
2902 * invoke the necessary cleanup routines ourselves.
2904 list_for_each_entry(mlxsw_sp_vport
, &mlxsw_sp_port
->vports_list
,
2906 struct net_device
*br_dev
;
2908 if (!mlxsw_sp_vport
->bridged
)
2911 br_dev
= mlxsw_sp_vport_br_get(mlxsw_sp_vport
);
2912 mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport
, br_dev
, false);
2915 if (mlxsw_sp_port
->bridged
) {
2916 mlxsw_sp_port_active_vlans_del(mlxsw_sp_port
);
2917 mlxsw_sp_port_bridge_leave(mlxsw_sp_port
, false);
2918 mlxsw_sp_master_bridge_dec(mlxsw_sp
, NULL
);
2921 if (lag
->ref_count
== 1) {
2922 if (mlxsw_sp_port_fdb_flush_by_lag_id(mlxsw_sp_port
))
2923 netdev_err(mlxsw_sp_port
->dev
, "Failed to flush FDB\n");
2924 err
= mlxsw_sp_lag_destroy(mlxsw_sp
, lag_id
);
2929 mlxsw_core_lag_mapping_clear(mlxsw_sp
->core
, lag_id
,
2930 mlxsw_sp_port
->local_port
);
2931 mlxsw_sp_port
->lagged
= 0;
2936 static int mlxsw_sp_lag_dist_port_add(struct mlxsw_sp_port
*mlxsw_sp_port
,
2939 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
2940 char sldr_pl
[MLXSW_REG_SLDR_LEN
];
2942 mlxsw_reg_sldr_lag_add_port_pack(sldr_pl
, lag_id
,
2943 mlxsw_sp_port
->local_port
);
2944 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(sldr
), sldr_pl
);
2947 static int mlxsw_sp_lag_dist_port_remove(struct mlxsw_sp_port
*mlxsw_sp_port
,
2950 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
2951 char sldr_pl
[MLXSW_REG_SLDR_LEN
];
2953 mlxsw_reg_sldr_lag_remove_port_pack(sldr_pl
, lag_id
,
2954 mlxsw_sp_port
->local_port
);
2955 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(sldr
), sldr_pl
);
2958 static int mlxsw_sp_port_lag_tx_en_set(struct mlxsw_sp_port
*mlxsw_sp_port
,
2959 bool lag_tx_enabled
)
2962 return mlxsw_sp_lag_dist_port_add(mlxsw_sp_port
,
2963 mlxsw_sp_port
->lag_id
);
2965 return mlxsw_sp_lag_dist_port_remove(mlxsw_sp_port
,
2966 mlxsw_sp_port
->lag_id
);
2969 static int mlxsw_sp_port_lag_changed(struct mlxsw_sp_port
*mlxsw_sp_port
,
2970 struct netdev_lag_lower_state_info
*info
)
2972 return mlxsw_sp_port_lag_tx_en_set(mlxsw_sp_port
, info
->tx_enabled
);
2975 static int mlxsw_sp_port_vlan_link(struct mlxsw_sp_port
*mlxsw_sp_port
,
2976 struct net_device
*vlan_dev
)
2978 struct mlxsw_sp_port
*mlxsw_sp_vport
;
2979 u16 vid
= vlan_dev_vlan_id(vlan_dev
);
2981 mlxsw_sp_vport
= mlxsw_sp_port_vport_find(mlxsw_sp_port
, vid
);
2982 if (!mlxsw_sp_vport
) {
2983 WARN_ON(!mlxsw_sp_vport
);
2987 mlxsw_sp_vport
->dev
= vlan_dev
;
2992 static int mlxsw_sp_port_vlan_unlink(struct mlxsw_sp_port
*mlxsw_sp_port
,
2993 struct net_device
*vlan_dev
)
2995 struct mlxsw_sp_port
*mlxsw_sp_vport
;
2996 u16 vid
= vlan_dev_vlan_id(vlan_dev
);
2998 mlxsw_sp_vport
= mlxsw_sp_port_vport_find(mlxsw_sp_port
, vid
);
2999 if (!mlxsw_sp_vport
) {
3000 WARN_ON(!mlxsw_sp_vport
);
3004 /* When removing a VLAN device while still bridged we should first
3005 * remove it from the bridge, as we receive the bridge's notification
3006 * when the vPort is already gone.
3008 if (mlxsw_sp_vport
->bridged
) {
3009 struct net_device
*br_dev
;
3011 br_dev
= mlxsw_sp_vport_br_get(mlxsw_sp_vport
);
3012 mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport
, br_dev
, true);
3015 mlxsw_sp_vport
->dev
= mlxsw_sp_port
->dev
;
3020 static int mlxsw_sp_netdevice_port_upper_event(struct net_device
*dev
,
3021 unsigned long event
, void *ptr
)
3023 struct netdev_notifier_changeupper_info
*info
;
3024 struct mlxsw_sp_port
*mlxsw_sp_port
;
3025 struct net_device
*upper_dev
;
3026 struct mlxsw_sp
*mlxsw_sp
;
3029 mlxsw_sp_port
= netdev_priv(dev
);
3030 mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
3034 case NETDEV_PRECHANGEUPPER
:
3035 upper_dev
= info
->upper_dev
;
3036 if (!info
->master
|| !info
->linking
)
3038 /* HW limitation forbids to put ports to multiple bridges. */
3039 if (netif_is_bridge_master(upper_dev
) &&
3040 !mlxsw_sp_master_bridge_check(mlxsw_sp
, upper_dev
))
3042 if (netif_is_lag_master(upper_dev
) &&
3043 !mlxsw_sp_master_lag_check(mlxsw_sp
, upper_dev
,
3047 case NETDEV_CHANGEUPPER
:
3048 upper_dev
= info
->upper_dev
;
3049 if (is_vlan_dev(upper_dev
)) {
3050 if (info
->linking
) {
3051 err
= mlxsw_sp_port_vlan_link(mlxsw_sp_port
,
3054 netdev_err(dev
, "Failed to link VLAN device\n");
3058 err
= mlxsw_sp_port_vlan_unlink(mlxsw_sp_port
,
3061 netdev_err(dev
, "Failed to unlink VLAN device\n");
3065 } else if (netif_is_bridge_master(upper_dev
)) {
3066 if (info
->linking
) {
3067 err
= mlxsw_sp_port_bridge_join(mlxsw_sp_port
);
3069 netdev_err(dev
, "Failed to join bridge\n");
3072 mlxsw_sp_master_bridge_inc(mlxsw_sp
, upper_dev
);
3074 err
= mlxsw_sp_port_bridge_leave(mlxsw_sp_port
,
3076 mlxsw_sp_master_bridge_dec(mlxsw_sp
, upper_dev
);
3078 netdev_err(dev
, "Failed to leave bridge\n");
3082 } else if (netif_is_lag_master(upper_dev
)) {
3083 if (info
->linking
) {
3084 err
= mlxsw_sp_port_lag_join(mlxsw_sp_port
,
3087 netdev_err(dev
, "Failed to join link aggregation\n");
3091 err
= mlxsw_sp_port_lag_leave(mlxsw_sp_port
,
3094 netdev_err(dev
, "Failed to leave link aggregation\n");
3105 static int mlxsw_sp_netdevice_port_lower_event(struct net_device
*dev
,
3106 unsigned long event
, void *ptr
)
3108 struct netdev_notifier_changelowerstate_info
*info
;
3109 struct mlxsw_sp_port
*mlxsw_sp_port
;
3112 mlxsw_sp_port
= netdev_priv(dev
);
3116 case NETDEV_CHANGELOWERSTATE
:
3117 if (netif_is_lag_port(dev
) && mlxsw_sp_port
->lagged
) {
3118 err
= mlxsw_sp_port_lag_changed(mlxsw_sp_port
,
3119 info
->lower_state_info
);
3121 netdev_err(dev
, "Failed to reflect link aggregation lower state change\n");
3129 static int mlxsw_sp_netdevice_port_event(struct net_device
*dev
,
3130 unsigned long event
, void *ptr
)
3133 case NETDEV_PRECHANGEUPPER
:
3134 case NETDEV_CHANGEUPPER
:
3135 return mlxsw_sp_netdevice_port_upper_event(dev
, event
, ptr
);
3136 case NETDEV_CHANGELOWERSTATE
:
3137 return mlxsw_sp_netdevice_port_lower_event(dev
, event
, ptr
);
3143 static int mlxsw_sp_netdevice_lag_event(struct net_device
*lag_dev
,
3144 unsigned long event
, void *ptr
)
3146 struct net_device
*dev
;
3147 struct list_head
*iter
;
3150 netdev_for_each_lower_dev(lag_dev
, dev
, iter
) {
3151 if (mlxsw_sp_port_dev_check(dev
)) {
3152 ret
= mlxsw_sp_netdevice_port_event(dev
, event
, ptr
);
3153 if (ret
== NOTIFY_BAD
)
3161 static struct mlxsw_sp_vfid
*
3162 mlxsw_sp_br_vfid_find(const struct mlxsw_sp
*mlxsw_sp
,
3163 const struct net_device
*br_dev
)
3165 struct mlxsw_sp_vfid
*vfid
;
3167 list_for_each_entry(vfid
, &mlxsw_sp
->br_vfids
.list
, list
) {
3168 if (vfid
->br_dev
== br_dev
)
3175 static u16
mlxsw_sp_vfid_to_br_vfid(u16 vfid
)
3177 return vfid
- MLXSW_SP_VFID_PORT_MAX
;
3180 static u16
mlxsw_sp_br_vfid_to_vfid(u16 br_vfid
)
3182 return MLXSW_SP_VFID_PORT_MAX
+ br_vfid
;
3185 static u16
mlxsw_sp_avail_br_vfid_get(const struct mlxsw_sp
*mlxsw_sp
)
3187 return find_first_zero_bit(mlxsw_sp
->br_vfids
.mapped
,
3188 MLXSW_SP_VFID_BR_MAX
);
3191 static struct mlxsw_sp_vfid
*mlxsw_sp_br_vfid_create(struct mlxsw_sp
*mlxsw_sp
,
3192 struct net_device
*br_dev
)
3194 struct device
*dev
= mlxsw_sp
->bus_info
->dev
;
3195 struct mlxsw_sp_vfid
*vfid
;
3199 n_vfid
= mlxsw_sp_br_vfid_to_vfid(mlxsw_sp_avail_br_vfid_get(mlxsw_sp
));
3200 if (n_vfid
== MLXSW_SP_VFID_MAX
) {
3201 dev_err(dev
, "No available vFIDs\n");
3202 return ERR_PTR(-ERANGE
);
3205 err
= __mlxsw_sp_vfid_create(mlxsw_sp
, n_vfid
);
3207 dev_err(dev
, "Failed to create vFID=%d\n", n_vfid
);
3208 return ERR_PTR(err
);
3211 vfid
= kzalloc(sizeof(*vfid
), GFP_KERNEL
);
3213 goto err_allocate_vfid
;
3215 vfid
->vfid
= n_vfid
;
3216 vfid
->br_dev
= br_dev
;
3218 list_add(&vfid
->list
, &mlxsw_sp
->br_vfids
.list
);
3219 set_bit(mlxsw_sp_vfid_to_br_vfid(n_vfid
), mlxsw_sp
->br_vfids
.mapped
);
3224 __mlxsw_sp_vfid_destroy(mlxsw_sp
, n_vfid
);
3225 return ERR_PTR(-ENOMEM
);
3228 static void mlxsw_sp_br_vfid_destroy(struct mlxsw_sp
*mlxsw_sp
,
3229 struct mlxsw_sp_vfid
*vfid
)
3231 u16 br_vfid
= mlxsw_sp_vfid_to_br_vfid(vfid
->vfid
);
3233 clear_bit(br_vfid
, mlxsw_sp
->br_vfids
.mapped
);
3234 list_del(&vfid
->list
);
3236 __mlxsw_sp_vfid_destroy(mlxsw_sp
, vfid
->vfid
);
3241 static int mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port
*mlxsw_sp_vport
,
3242 struct net_device
*br_dev
,
3245 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_vport
->mlxsw_sp
;
3246 u16 vid
= mlxsw_sp_vport_vid_get(mlxsw_sp_vport
);
3247 struct net_device
*dev
= mlxsw_sp_vport
->dev
;
3248 struct mlxsw_sp_vfid
*vfid
, *new_vfid
;
3251 vfid
= mlxsw_sp_br_vfid_find(mlxsw_sp
, br_dev
);
3257 /* We need a vFID to go back to after leaving the bridge's vFID. */
3258 new_vfid
= mlxsw_sp_vfid_find(mlxsw_sp
, vid
);
3260 new_vfid
= mlxsw_sp_vfid_create(mlxsw_sp
, vid
);
3261 if (IS_ERR(new_vfid
)) {
3262 netdev_err(dev
, "Failed to create vFID for VID=%d\n",
3264 return PTR_ERR(new_vfid
);
3268 /* Invalidate existing {Port, VID} to vFID mapping and create a new
3269 * one for the new vFID.
3271 err
= mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport
,
3272 MLXSW_REG_SVFA_MT_PORT_VID_TO_FID
,
3274 mlxsw_sp_vfid_to_fid(vfid
->vfid
),
3277 netdev_err(dev
, "Failed to invalidate {Port, VID} to vFID=%d mapping\n",
3279 goto err_port_vid_to_fid_invalidate
;
3282 err
= mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport
,
3283 MLXSW_REG_SVFA_MT_PORT_VID_TO_FID
,
3285 mlxsw_sp_vfid_to_fid(new_vfid
->vfid
),
3288 netdev_err(dev
, "Failed to map {Port, VID} to vFID=%d\n",
3290 goto err_port_vid_to_fid_validate
;
3293 err
= mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport
, vid
, false);
3295 netdev_err(dev
, "Failed to disable learning\n");
3296 goto err_port_vid_learning_set
;
3299 err
= mlxsw_sp_vport_flood_set(mlxsw_sp_vport
, vfid
->vfid
, false,
3302 netdev_err(dev
, "Failed clear to clear flooding\n");
3303 goto err_vport_flood_set
;
3306 err
= mlxsw_sp_port_stp_state_set(mlxsw_sp_vport
, vid
,
3307 MLXSW_REG_SPMS_STATE_FORWARDING
);
3309 netdev_err(dev
, "Failed to set STP state\n");
3310 goto err_port_stp_state_set
;
3313 if (flush_fdb
&& mlxsw_sp_vport_fdb_flush(mlxsw_sp_vport
))
3314 netdev_err(dev
, "Failed to flush FDB\n");
3316 /* Switch between the vFIDs and destroy the old one if needed. */
3317 new_vfid
->nr_vports
++;
3318 mlxsw_sp_vport
->vport
.vfid
= new_vfid
;
3320 if (!vfid
->nr_vports
)
3321 mlxsw_sp_br_vfid_destroy(mlxsw_sp
, vfid
);
3323 mlxsw_sp_vport
->learning
= 0;
3324 mlxsw_sp_vport
->learning_sync
= 0;
3325 mlxsw_sp_vport
->uc_flood
= 0;
3326 mlxsw_sp_vport
->bridged
= 0;
3330 err_port_stp_state_set
:
3331 err_vport_flood_set
:
3332 err_port_vid_learning_set
:
3333 err_port_vid_to_fid_validate
:
3334 err_port_vid_to_fid_invalidate
:
3335 /* Rollback vFID only if new. */
3336 if (!new_vfid
->nr_vports
)
3337 mlxsw_sp_vfid_destroy(mlxsw_sp
, new_vfid
);
3341 static int mlxsw_sp_vport_bridge_join(struct mlxsw_sp_port
*mlxsw_sp_vport
,
3342 struct net_device
*br_dev
)
3344 struct mlxsw_sp_vfid
*old_vfid
= mlxsw_sp_vport
->vport
.vfid
;
3345 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_vport
->mlxsw_sp
;
3346 u16 vid
= mlxsw_sp_vport_vid_get(mlxsw_sp_vport
);
3347 struct net_device
*dev
= mlxsw_sp_vport
->dev
;
3348 struct mlxsw_sp_vfid
*vfid
;
3351 vfid
= mlxsw_sp_br_vfid_find(mlxsw_sp
, br_dev
);
3353 vfid
= mlxsw_sp_br_vfid_create(mlxsw_sp
, br_dev
);
3355 netdev_err(dev
, "Failed to create bridge vFID\n");
3356 return PTR_ERR(vfid
);
3360 err
= mlxsw_sp_vport_flood_set(mlxsw_sp_vport
, vfid
->vfid
, true, false);
3362 netdev_err(dev
, "Failed to setup flooding for vFID=%d\n",
3364 goto err_port_flood_set
;
3367 err
= mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport
, vid
, true);
3369 netdev_err(dev
, "Failed to enable learning\n");
3370 goto err_port_vid_learning_set
;
3373 /* We need to invalidate existing {Port, VID} to vFID mapping and
3374 * create a new one for the bridge's vFID.
3376 err
= mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport
,
3377 MLXSW_REG_SVFA_MT_PORT_VID_TO_FID
,
3379 mlxsw_sp_vfid_to_fid(old_vfid
->vfid
),
3382 netdev_err(dev
, "Failed to invalidate {Port, VID} to vFID=%d mapping\n",
3384 goto err_port_vid_to_fid_invalidate
;
3387 err
= mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport
,
3388 MLXSW_REG_SVFA_MT_PORT_VID_TO_FID
,
3390 mlxsw_sp_vfid_to_fid(vfid
->vfid
),
3393 netdev_err(dev
, "Failed to map {Port, VID} to vFID=%d\n",
3395 goto err_port_vid_to_fid_validate
;
3398 /* Switch between the vFIDs and destroy the old one if needed. */
3400 mlxsw_sp_vport
->vport
.vfid
= vfid
;
3401 old_vfid
->nr_vports
--;
3402 if (!old_vfid
->nr_vports
)
3403 mlxsw_sp_vfid_destroy(mlxsw_sp
, old_vfid
);
3405 mlxsw_sp_vport
->learning
= 1;
3406 mlxsw_sp_vport
->learning_sync
= 1;
3407 mlxsw_sp_vport
->uc_flood
= 1;
3408 mlxsw_sp_vport
->bridged
= 1;
3412 err_port_vid_to_fid_validate
:
3413 mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport
,
3414 MLXSW_REG_SVFA_MT_PORT_VID_TO_FID
, false,
3415 mlxsw_sp_vfid_to_fid(old_vfid
->vfid
), vid
);
3416 err_port_vid_to_fid_invalidate
:
3417 mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport
, vid
, false);
3418 err_port_vid_learning_set
:
3419 mlxsw_sp_vport_flood_set(mlxsw_sp_vport
, vfid
->vfid
, false, false);
3421 if (!vfid
->nr_vports
)
3422 mlxsw_sp_br_vfid_destroy(mlxsw_sp
, vfid
);
3427 mlxsw_sp_port_master_bridge_check(const struct mlxsw_sp_port
*mlxsw_sp_port
,
3428 const struct net_device
*br_dev
)
3430 struct mlxsw_sp_port
*mlxsw_sp_vport
;
3432 list_for_each_entry(mlxsw_sp_vport
, &mlxsw_sp_port
->vports_list
,
3434 if (mlxsw_sp_vport_br_get(mlxsw_sp_vport
) == br_dev
)
3441 static int mlxsw_sp_netdevice_vport_event(struct net_device
*dev
,
3442 unsigned long event
, void *ptr
,
3445 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(dev
);
3446 struct netdev_notifier_changeupper_info
*info
= ptr
;
3447 struct mlxsw_sp_port
*mlxsw_sp_vport
;
3448 struct net_device
*upper_dev
;
3451 mlxsw_sp_vport
= mlxsw_sp_port_vport_find(mlxsw_sp_port
, vid
);
3454 case NETDEV_PRECHANGEUPPER
:
3455 upper_dev
= info
->upper_dev
;
3456 if (!info
->master
|| !info
->linking
)
3458 if (!netif_is_bridge_master(upper_dev
))
3460 /* We can't have multiple VLAN interfaces configured on
3461 * the same port and being members in the same bridge.
3463 if (!mlxsw_sp_port_master_bridge_check(mlxsw_sp_port
,
3467 case NETDEV_CHANGEUPPER
:
3468 upper_dev
= info
->upper_dev
;
3471 if (info
->linking
) {
3472 if (!mlxsw_sp_vport
) {
3473 WARN_ON(!mlxsw_sp_vport
);
3476 err
= mlxsw_sp_vport_bridge_join(mlxsw_sp_vport
,
3479 netdev_err(dev
, "Failed to join bridge\n");
3483 /* We ignore bridge's unlinking notifications if vPort
3484 * is gone, since we already left the bridge when the
3485 * VLAN device was unlinked from the real device.
3487 if (!mlxsw_sp_vport
)
3489 err
= mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport
,
3492 netdev_err(dev
, "Failed to leave bridge\n");
3501 static int mlxsw_sp_netdevice_lag_vport_event(struct net_device
*lag_dev
,
3502 unsigned long event
, void *ptr
,
3505 struct net_device
*dev
;
3506 struct list_head
*iter
;
3509 netdev_for_each_lower_dev(lag_dev
, dev
, iter
) {
3510 if (mlxsw_sp_port_dev_check(dev
)) {
3511 ret
= mlxsw_sp_netdevice_vport_event(dev
, event
, ptr
,
3513 if (ret
== NOTIFY_BAD
)
3521 static int mlxsw_sp_netdevice_vlan_event(struct net_device
*vlan_dev
,
3522 unsigned long event
, void *ptr
)
3524 struct net_device
*real_dev
= vlan_dev_real_dev(vlan_dev
);
3525 u16 vid
= vlan_dev_vlan_id(vlan_dev
);
3527 if (mlxsw_sp_port_dev_check(real_dev
))
3528 return mlxsw_sp_netdevice_vport_event(real_dev
, event
, ptr
,
3530 else if (netif_is_lag_master(real_dev
))
3531 return mlxsw_sp_netdevice_lag_vport_event(real_dev
, event
, ptr
,
3537 static int mlxsw_sp_netdevice_event(struct notifier_block
*unused
,
3538 unsigned long event
, void *ptr
)
3540 struct net_device
*dev
= netdev_notifier_info_to_dev(ptr
);
3542 if (mlxsw_sp_port_dev_check(dev
))
3543 return mlxsw_sp_netdevice_port_event(dev
, event
, ptr
);
3545 if (netif_is_lag_master(dev
))
3546 return mlxsw_sp_netdevice_lag_event(dev
, event
, ptr
);
3548 if (is_vlan_dev(dev
))
3549 return mlxsw_sp_netdevice_vlan_event(dev
, event
, ptr
);
3554 static struct notifier_block mlxsw_sp_netdevice_nb __read_mostly
= {
3555 .notifier_call
= mlxsw_sp_netdevice_event
,
3558 static int __init
mlxsw_sp_module_init(void)
3562 register_netdevice_notifier(&mlxsw_sp_netdevice_nb
);
3563 err
= mlxsw_core_driver_register(&mlxsw_sp_driver
);
3565 goto err_core_driver_register
;
3568 err_core_driver_register
:
3569 unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb
);
3573 static void __exit
mlxsw_sp_module_exit(void)
3575 mlxsw_core_driver_unregister(&mlxsw_sp_driver
);
3576 unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb
);
3579 module_init(mlxsw_sp_module_init
);
3580 module_exit(mlxsw_sp_module_exit
);
3582 MODULE_LICENSE("Dual BSD/GPL");
3583 MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>");
3584 MODULE_DESCRIPTION("Mellanox Spectrum driver");
3585 MODULE_MLXSW_DRIVER_ALIAS(MLXSW_DEVICE_KIND_SPECTRUM
);