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37#include <linux/kernel.h>
38#include <linux/module.h>
39#include <linux/device.h>
40#include <linux/export.h>
41#include <linux/err.h>
42#include <linux/if_link.h>
43#include <linux/netdevice.h>
44#include <linux/completion.h>
45#include <linux/skbuff.h>
46#include <linux/etherdevice.h>
47#include <linux/types.h>
48#include <linux/string.h>
49#include <linux/gfp.h>
50#include <linux/random.h>
51#include <linux/jiffies.h>
52#include <linux/mutex.h>
53#include <linux/rcupdate.h>
54#include <linux/slab.h>
55#include <linux/workqueue.h>
56#include <asm/byteorder.h>
57#include <net/devlink.h>
58#include <trace/events/devlink.h>
59
60#include "core.h"
61#include "item.h"
62#include "cmd.h"
63#include "port.h"
64#include "trap.h"
65#include "emad.h"
66#include "reg.h"
67#include "resources.h"
68
69static LIST_HEAD(mlxsw_core_driver_list);
70static DEFINE_SPINLOCK(mlxsw_core_driver_list_lock);
71
72static const char mlxsw_core_driver_name[] = "mlxsw_core";
73
74static struct workqueue_struct *mlxsw_wq;
75static struct workqueue_struct *mlxsw_owq;
76
77struct mlxsw_core_port {
78 struct devlink_port devlink_port;
79 void *port_driver_priv;
80 u8 local_port;
81};
82
83void *mlxsw_core_port_driver_priv(struct mlxsw_core_port *mlxsw_core_port)
84{
85 return mlxsw_core_port->port_driver_priv;
86}
87EXPORT_SYMBOL(mlxsw_core_port_driver_priv);
88
89static bool mlxsw_core_port_check(struct mlxsw_core_port *mlxsw_core_port)
90{
91 return mlxsw_core_port->port_driver_priv != NULL;
92}
93
94struct mlxsw_core {
95 struct mlxsw_driver *driver;
96 const struct mlxsw_bus *bus;
97 void *bus_priv;
98 const struct mlxsw_bus_info *bus_info;
99 struct workqueue_struct *emad_wq;
100 struct list_head rx_listener_list;
101 struct list_head event_listener_list;
102 struct {
103 atomic64_t tid;
104 struct list_head trans_list;
105 spinlock_t trans_list_lock;
106 bool use_emad;
107 } emad;
108 struct {
109 u8 *mapping;
110 } lag;
111 struct mlxsw_res res;
112 struct mlxsw_hwmon *hwmon;
113 struct mlxsw_thermal *thermal;
114 struct mlxsw_core_port *ports;
115 unsigned int max_ports;
116 bool reload_fail;
117 unsigned long driver_priv[0];
118
119};
120
121#define MLXSW_PORT_MAX_PORTS_DEFAULT 0x40
122
123static int mlxsw_ports_init(struct mlxsw_core *mlxsw_core)
124{
125
126 if (MLXSW_CORE_RES_VALID(mlxsw_core, MAX_SYSTEM_PORT))
127 mlxsw_core->max_ports = MLXSW_CORE_RES_GET(mlxsw_core,
128 MAX_SYSTEM_PORT) + 1;
129 else
130 mlxsw_core->max_ports = MLXSW_PORT_MAX_PORTS_DEFAULT + 1;
131
132 mlxsw_core->ports = kcalloc(mlxsw_core->max_ports,
133 sizeof(struct mlxsw_core_port), GFP_KERNEL);
134 if (!mlxsw_core->ports)
135 return -ENOMEM;
136
137 return 0;
138}
139
140static void mlxsw_ports_fini(struct mlxsw_core *mlxsw_core)
141{
142 kfree(mlxsw_core->ports);
143}
144
145unsigned int mlxsw_core_max_ports(const struct mlxsw_core *mlxsw_core)
146{
147 return mlxsw_core->max_ports;
148}
149EXPORT_SYMBOL(mlxsw_core_max_ports);
150
151void *mlxsw_core_driver_priv(struct mlxsw_core *mlxsw_core)
152{
153 return mlxsw_core->driver_priv;
154}
155EXPORT_SYMBOL(mlxsw_core_driver_priv);
156
157struct mlxsw_rx_listener_item {
158 struct list_head list;
159 struct mlxsw_rx_listener rxl;
160 void *priv;
161};
162
163struct mlxsw_event_listener_item {
164 struct list_head list;
165 struct mlxsw_event_listener el;
166 void *priv;
167};
168
169
170
171
172
173
174
175
176
177MLXSW_ITEM_BUF(emad, eth_hdr, dmac, 0x00, 6);
178
179
180
181
182
183MLXSW_ITEM_BUF(emad, eth_hdr, smac, 0x06, 6);
184
185
186
187
188
189MLXSW_ITEM32(emad, eth_hdr, ethertype, 0x0C, 16, 16);
190
191
192
193
194
195MLXSW_ITEM32(emad, eth_hdr, mlx_proto, 0x0C, 8, 8);
196
197
198
199
200
201MLXSW_ITEM32(emad, eth_hdr, ver, 0x0C, 4, 4);
202
203
204
205
206
207MLXSW_ITEM32(emad, op_tlv, type, 0x00, 27, 5);
208
209
210
211
212
213MLXSW_ITEM32(emad, op_tlv, len, 0x00, 16, 11);
214
215
216
217
218
219
220
221MLXSW_ITEM32(emad, op_tlv, dr, 0x00, 15, 1);
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238MLXSW_ITEM32(emad, op_tlv, status, 0x00, 8, 7);
239
240
241
242
243MLXSW_ITEM32(emad, op_tlv, register_id, 0x04, 16, 16);
244
245
246
247
248MLXSW_ITEM32(emad, op_tlv, r, 0x04, 15, 1);
249
250
251
252
253
254
255
256
257MLXSW_ITEM32(emad, op_tlv, method, 0x04, 8, 7);
258
259
260
261
262MLXSW_ITEM32(emad, op_tlv, class, 0x04, 0, 8);
263
264
265
266
267MLXSW_ITEM64(emad, op_tlv, tid, 0x08, 0, 64);
268
269
270
271
272
273MLXSW_ITEM32(emad, reg_tlv, type, 0x00, 27, 5);
274
275
276
277
278MLXSW_ITEM32(emad, reg_tlv, len, 0x00, 16, 11);
279
280
281
282
283
284MLXSW_ITEM32(emad, end_tlv, type, 0x00, 27, 5);
285
286
287
288
289
290MLXSW_ITEM32(emad, end_tlv, len, 0x00, 16, 11);
291
292enum mlxsw_core_reg_access_type {
293 MLXSW_CORE_REG_ACCESS_TYPE_QUERY,
294 MLXSW_CORE_REG_ACCESS_TYPE_WRITE,
295};
296
297static inline const char *
298mlxsw_core_reg_access_type_str(enum mlxsw_core_reg_access_type type)
299{
300 switch (type) {
301 case MLXSW_CORE_REG_ACCESS_TYPE_QUERY:
302 return "query";
303 case MLXSW_CORE_REG_ACCESS_TYPE_WRITE:
304 return "write";
305 }
306 BUG();
307}
308
309static void mlxsw_emad_pack_end_tlv(char *end_tlv)
310{
311 mlxsw_emad_end_tlv_type_set(end_tlv, MLXSW_EMAD_TLV_TYPE_END);
312 mlxsw_emad_end_tlv_len_set(end_tlv, MLXSW_EMAD_END_TLV_LEN);
313}
314
315static void mlxsw_emad_pack_reg_tlv(char *reg_tlv,
316 const struct mlxsw_reg_info *reg,
317 char *payload)
318{
319 mlxsw_emad_reg_tlv_type_set(reg_tlv, MLXSW_EMAD_TLV_TYPE_REG);
320 mlxsw_emad_reg_tlv_len_set(reg_tlv, reg->len / sizeof(u32) + 1);
321 memcpy(reg_tlv + sizeof(u32), payload, reg->len);
322}
323
324static void mlxsw_emad_pack_op_tlv(char *op_tlv,
325 const struct mlxsw_reg_info *reg,
326 enum mlxsw_core_reg_access_type type,
327 u64 tid)
328{
329 mlxsw_emad_op_tlv_type_set(op_tlv, MLXSW_EMAD_TLV_TYPE_OP);
330 mlxsw_emad_op_tlv_len_set(op_tlv, MLXSW_EMAD_OP_TLV_LEN);
331 mlxsw_emad_op_tlv_dr_set(op_tlv, 0);
332 mlxsw_emad_op_tlv_status_set(op_tlv, 0);
333 mlxsw_emad_op_tlv_register_id_set(op_tlv, reg->id);
334 mlxsw_emad_op_tlv_r_set(op_tlv, MLXSW_EMAD_OP_TLV_REQUEST);
335 if (type == MLXSW_CORE_REG_ACCESS_TYPE_QUERY)
336 mlxsw_emad_op_tlv_method_set(op_tlv,
337 MLXSW_EMAD_OP_TLV_METHOD_QUERY);
338 else
339 mlxsw_emad_op_tlv_method_set(op_tlv,
340 MLXSW_EMAD_OP_TLV_METHOD_WRITE);
341 mlxsw_emad_op_tlv_class_set(op_tlv,
342 MLXSW_EMAD_OP_TLV_CLASS_REG_ACCESS);
343 mlxsw_emad_op_tlv_tid_set(op_tlv, tid);
344}
345
346static int mlxsw_emad_construct_eth_hdr(struct sk_buff *skb)
347{
348 char *eth_hdr = skb_push(skb, MLXSW_EMAD_ETH_HDR_LEN);
349
350 mlxsw_emad_eth_hdr_dmac_memcpy_to(eth_hdr, MLXSW_EMAD_EH_DMAC);
351 mlxsw_emad_eth_hdr_smac_memcpy_to(eth_hdr, MLXSW_EMAD_EH_SMAC);
352 mlxsw_emad_eth_hdr_ethertype_set(eth_hdr, MLXSW_EMAD_EH_ETHERTYPE);
353 mlxsw_emad_eth_hdr_mlx_proto_set(eth_hdr, MLXSW_EMAD_EH_MLX_PROTO);
354 mlxsw_emad_eth_hdr_ver_set(eth_hdr, MLXSW_EMAD_EH_PROTO_VERSION);
355
356 skb_reset_mac_header(skb);
357
358 return 0;
359}
360
361static void mlxsw_emad_construct(struct sk_buff *skb,
362 const struct mlxsw_reg_info *reg,
363 char *payload,
364 enum mlxsw_core_reg_access_type type,
365 u64 tid)
366{
367 char *buf;
368
369 buf = skb_push(skb, MLXSW_EMAD_END_TLV_LEN * sizeof(u32));
370 mlxsw_emad_pack_end_tlv(buf);
371
372 buf = skb_push(skb, reg->len + sizeof(u32));
373 mlxsw_emad_pack_reg_tlv(buf, reg, payload);
374
375 buf = skb_push(skb, MLXSW_EMAD_OP_TLV_LEN * sizeof(u32));
376 mlxsw_emad_pack_op_tlv(buf, reg, type, tid);
377
378 mlxsw_emad_construct_eth_hdr(skb);
379}
380
381static char *mlxsw_emad_op_tlv(const struct sk_buff *skb)
382{
383 return ((char *) (skb->data + MLXSW_EMAD_ETH_HDR_LEN));
384}
385
386static char *mlxsw_emad_reg_tlv(const struct sk_buff *skb)
387{
388 return ((char *) (skb->data + MLXSW_EMAD_ETH_HDR_LEN +
389 MLXSW_EMAD_OP_TLV_LEN * sizeof(u32)));
390}
391
392static char *mlxsw_emad_reg_payload(const char *op_tlv)
393{
394 return ((char *) (op_tlv + (MLXSW_EMAD_OP_TLV_LEN + 1) * sizeof(u32)));
395}
396
397static u64 mlxsw_emad_get_tid(const struct sk_buff *skb)
398{
399 char *op_tlv;
400
401 op_tlv = mlxsw_emad_op_tlv(skb);
402 return mlxsw_emad_op_tlv_tid_get(op_tlv);
403}
404
405static bool mlxsw_emad_is_resp(const struct sk_buff *skb)
406{
407 char *op_tlv;
408
409 op_tlv = mlxsw_emad_op_tlv(skb);
410 return (mlxsw_emad_op_tlv_r_get(op_tlv) == MLXSW_EMAD_OP_TLV_RESPONSE);
411}
412
413static int mlxsw_emad_process_status(char *op_tlv,
414 enum mlxsw_emad_op_tlv_status *p_status)
415{
416 *p_status = mlxsw_emad_op_tlv_status_get(op_tlv);
417
418 switch (*p_status) {
419 case MLXSW_EMAD_OP_TLV_STATUS_SUCCESS:
420 return 0;
421 case MLXSW_EMAD_OP_TLV_STATUS_BUSY:
422 case MLXSW_EMAD_OP_TLV_STATUS_MESSAGE_RECEIPT_ACK:
423 return -EAGAIN;
424 case MLXSW_EMAD_OP_TLV_STATUS_VERSION_NOT_SUPPORTED:
425 case MLXSW_EMAD_OP_TLV_STATUS_UNKNOWN_TLV:
426 case MLXSW_EMAD_OP_TLV_STATUS_REGISTER_NOT_SUPPORTED:
427 case MLXSW_EMAD_OP_TLV_STATUS_CLASS_NOT_SUPPORTED:
428 case MLXSW_EMAD_OP_TLV_STATUS_METHOD_NOT_SUPPORTED:
429 case MLXSW_EMAD_OP_TLV_STATUS_BAD_PARAMETER:
430 case MLXSW_EMAD_OP_TLV_STATUS_RESOURCE_NOT_AVAILABLE:
431 case MLXSW_EMAD_OP_TLV_STATUS_INTERNAL_ERROR:
432 default:
433 return -EIO;
434 }
435}
436
437static int
438mlxsw_emad_process_status_skb(struct sk_buff *skb,
439 enum mlxsw_emad_op_tlv_status *p_status)
440{
441 return mlxsw_emad_process_status(mlxsw_emad_op_tlv(skb), p_status);
442}
443
444struct mlxsw_reg_trans {
445 struct list_head list;
446 struct list_head bulk_list;
447 struct mlxsw_core *core;
448 struct sk_buff *tx_skb;
449 struct mlxsw_tx_info tx_info;
450 struct delayed_work timeout_dw;
451 unsigned int retries;
452 u64 tid;
453 struct completion completion;
454 atomic_t active;
455 mlxsw_reg_trans_cb_t *cb;
456 unsigned long cb_priv;
457 const struct mlxsw_reg_info *reg;
458 enum mlxsw_core_reg_access_type type;
459 int err;
460 enum mlxsw_emad_op_tlv_status emad_status;
461 struct rcu_head rcu;
462};
463
464#define MLXSW_EMAD_TIMEOUT_MS 200
465
466static void mlxsw_emad_trans_timeout_schedule(struct mlxsw_reg_trans *trans)
467{
468 unsigned long timeout = msecs_to_jiffies(MLXSW_EMAD_TIMEOUT_MS);
469
470 queue_delayed_work(trans->core->emad_wq, &trans->timeout_dw, timeout);
471}
472
473static int mlxsw_emad_transmit(struct mlxsw_core *mlxsw_core,
474 struct mlxsw_reg_trans *trans)
475{
476 struct sk_buff *skb;
477 int err;
478
479 skb = skb_copy(trans->tx_skb, GFP_KERNEL);
480 if (!skb)
481 return -ENOMEM;
482
483 trace_devlink_hwmsg(priv_to_devlink(mlxsw_core), false, 0,
484 skb->data + mlxsw_core->driver->txhdr_len,
485 skb->len - mlxsw_core->driver->txhdr_len);
486
487 atomic_set(&trans->active, 1);
488 err = mlxsw_core_skb_transmit(mlxsw_core, skb, &trans->tx_info);
489 if (err) {
490 dev_kfree_skb(skb);
491 return err;
492 }
493 mlxsw_emad_trans_timeout_schedule(trans);
494 return 0;
495}
496
497static void mlxsw_emad_trans_finish(struct mlxsw_reg_trans *trans, int err)
498{
499 struct mlxsw_core *mlxsw_core = trans->core;
500
501 dev_kfree_skb(trans->tx_skb);
502 spin_lock_bh(&mlxsw_core->emad.trans_list_lock);
503 list_del_rcu(&trans->list);
504 spin_unlock_bh(&mlxsw_core->emad.trans_list_lock);
505 trans->err = err;
506 complete(&trans->completion);
507}
508
509static void mlxsw_emad_transmit_retry(struct mlxsw_core *mlxsw_core,
510 struct mlxsw_reg_trans *trans)
511{
512 int err;
513
514 if (trans->retries < MLXSW_EMAD_MAX_RETRY) {
515 trans->retries++;
516 err = mlxsw_emad_transmit(trans->core, trans);
517 if (err == 0)
518 return;
519 } else {
520 err = -EIO;
521 }
522 mlxsw_emad_trans_finish(trans, err);
523}
524
525static void mlxsw_emad_trans_timeout_work(struct work_struct *work)
526{
527 struct mlxsw_reg_trans *trans = container_of(work,
528 struct mlxsw_reg_trans,
529 timeout_dw.work);
530
531 if (!atomic_dec_and_test(&trans->active))
532 return;
533
534 mlxsw_emad_transmit_retry(trans->core, trans);
535}
536
537static void mlxsw_emad_process_response(struct mlxsw_core *mlxsw_core,
538 struct mlxsw_reg_trans *trans,
539 struct sk_buff *skb)
540{
541 int err;
542
543 if (!atomic_dec_and_test(&trans->active))
544 return;
545
546 err = mlxsw_emad_process_status_skb(skb, &trans->emad_status);
547 if (err == -EAGAIN) {
548 mlxsw_emad_transmit_retry(mlxsw_core, trans);
549 } else {
550 if (err == 0) {
551 char *op_tlv = mlxsw_emad_op_tlv(skb);
552
553 if (trans->cb)
554 trans->cb(mlxsw_core,
555 mlxsw_emad_reg_payload(op_tlv),
556 trans->reg->len, trans->cb_priv);
557 }
558 mlxsw_emad_trans_finish(trans, err);
559 }
560}
561
562
563static void mlxsw_emad_rx_listener_func(struct sk_buff *skb, u8 local_port,
564 void *priv)
565{
566 struct mlxsw_core *mlxsw_core = priv;
567 struct mlxsw_reg_trans *trans;
568
569 trace_devlink_hwmsg(priv_to_devlink(mlxsw_core), true, 0,
570 skb->data, skb->len);
571
572 if (!mlxsw_emad_is_resp(skb))
573 goto free_skb;
574
575 list_for_each_entry_rcu(trans, &mlxsw_core->emad.trans_list, list) {
576 if (mlxsw_emad_get_tid(skb) == trans->tid) {
577 mlxsw_emad_process_response(mlxsw_core, trans, skb);
578 break;
579 }
580 }
581
582free_skb:
583 dev_kfree_skb(skb);
584}
585
586static const struct mlxsw_listener mlxsw_emad_rx_listener =
587 MLXSW_RXL(mlxsw_emad_rx_listener_func, ETHEMAD, TRAP_TO_CPU, false,
588 EMAD, DISCARD);
589
590static int mlxsw_emad_init(struct mlxsw_core *mlxsw_core)
591{
592 struct workqueue_struct *emad_wq;
593 u64 tid;
594 int err;
595
596 if (!(mlxsw_core->bus->features & MLXSW_BUS_F_TXRX))
597 return 0;
598
599 emad_wq = alloc_workqueue("mlxsw_core_emad", WQ_MEM_RECLAIM, 0);
600 if (!emad_wq)
601 return -ENOMEM;
602 mlxsw_core->emad_wq = emad_wq;
603
604
605
606
607
608 get_random_bytes(&tid, 4);
609 tid <<= 32;
610 atomic64_set(&mlxsw_core->emad.tid, tid);
611
612 INIT_LIST_HEAD(&mlxsw_core->emad.trans_list);
613 spin_lock_init(&mlxsw_core->emad.trans_list_lock);
614
615 err = mlxsw_core_trap_register(mlxsw_core, &mlxsw_emad_rx_listener,
616 mlxsw_core);
617 if (err)
618 return err;
619
620 err = mlxsw_core->driver->basic_trap_groups_set(mlxsw_core);
621 if (err)
622 goto err_emad_trap_set;
623 mlxsw_core->emad.use_emad = true;
624
625 return 0;
626
627err_emad_trap_set:
628 mlxsw_core_trap_unregister(mlxsw_core, &mlxsw_emad_rx_listener,
629 mlxsw_core);
630 destroy_workqueue(mlxsw_core->emad_wq);
631 return err;
632}
633
634static void mlxsw_emad_fini(struct mlxsw_core *mlxsw_core)
635{
636
637 if (!(mlxsw_core->bus->features & MLXSW_BUS_F_TXRX))
638 return;
639
640 mlxsw_core->emad.use_emad = false;
641 mlxsw_core_trap_unregister(mlxsw_core, &mlxsw_emad_rx_listener,
642 mlxsw_core);
643 destroy_workqueue(mlxsw_core->emad_wq);
644}
645
646static struct sk_buff *mlxsw_emad_alloc(const struct mlxsw_core *mlxsw_core,
647 u16 reg_len)
648{
649 struct sk_buff *skb;
650 u16 emad_len;
651
652 emad_len = (reg_len + sizeof(u32) + MLXSW_EMAD_ETH_HDR_LEN +
653 (MLXSW_EMAD_OP_TLV_LEN + MLXSW_EMAD_END_TLV_LEN) *
654 sizeof(u32) + mlxsw_core->driver->txhdr_len);
655 if (emad_len > MLXSW_EMAD_MAX_FRAME_LEN)
656 return NULL;
657
658 skb = netdev_alloc_skb(NULL, emad_len);
659 if (!skb)
660 return NULL;
661 memset(skb->data, 0, emad_len);
662 skb_reserve(skb, emad_len);
663
664 return skb;
665}
666
667static int mlxsw_emad_reg_access(struct mlxsw_core *mlxsw_core,
668 const struct mlxsw_reg_info *reg,
669 char *payload,
670 enum mlxsw_core_reg_access_type type,
671 struct mlxsw_reg_trans *trans,
672 struct list_head *bulk_list,
673 mlxsw_reg_trans_cb_t *cb,
674 unsigned long cb_priv, u64 tid)
675{
676 struct sk_buff *skb;
677 int err;
678
679 dev_dbg(mlxsw_core->bus_info->dev, "EMAD reg access (tid=%llx,reg_id=%x(%s),type=%s)\n",
680 tid, reg->id, mlxsw_reg_id_str(reg->id),
681 mlxsw_core_reg_access_type_str(type));
682
683 skb = mlxsw_emad_alloc(mlxsw_core, reg->len);
684 if (!skb)
685 return -ENOMEM;
686
687 list_add_tail(&trans->bulk_list, bulk_list);
688 trans->core = mlxsw_core;
689 trans->tx_skb = skb;
690 trans->tx_info.local_port = MLXSW_PORT_CPU_PORT;
691 trans->tx_info.is_emad = true;
692 INIT_DELAYED_WORK(&trans->timeout_dw, mlxsw_emad_trans_timeout_work);
693 trans->tid = tid;
694 init_completion(&trans->completion);
695 trans->cb = cb;
696 trans->cb_priv = cb_priv;
697 trans->reg = reg;
698 trans->type = type;
699
700 mlxsw_emad_construct(skb, reg, payload, type, trans->tid);
701 mlxsw_core->driver->txhdr_construct(skb, &trans->tx_info);
702
703 spin_lock_bh(&mlxsw_core->emad.trans_list_lock);
704 list_add_tail_rcu(&trans->list, &mlxsw_core->emad.trans_list);
705 spin_unlock_bh(&mlxsw_core->emad.trans_list_lock);
706 err = mlxsw_emad_transmit(mlxsw_core, trans);
707 if (err)
708 goto err_out;
709 return 0;
710
711err_out:
712 spin_lock_bh(&mlxsw_core->emad.trans_list_lock);
713 list_del_rcu(&trans->list);
714 spin_unlock_bh(&mlxsw_core->emad.trans_list_lock);
715 list_del(&trans->bulk_list);
716 dev_kfree_skb(trans->tx_skb);
717 return err;
718}
719
720
721
722
723
724int mlxsw_core_driver_register(struct mlxsw_driver *mlxsw_driver)
725{
726 spin_lock(&mlxsw_core_driver_list_lock);
727 list_add_tail(&mlxsw_driver->list, &mlxsw_core_driver_list);
728 spin_unlock(&mlxsw_core_driver_list_lock);
729 return 0;
730}
731EXPORT_SYMBOL(mlxsw_core_driver_register);
732
733void mlxsw_core_driver_unregister(struct mlxsw_driver *mlxsw_driver)
734{
735 spin_lock(&mlxsw_core_driver_list_lock);
736 list_del(&mlxsw_driver->list);
737 spin_unlock(&mlxsw_core_driver_list_lock);
738}
739EXPORT_SYMBOL(mlxsw_core_driver_unregister);
740
741static struct mlxsw_driver *__driver_find(const char *kind)
742{
743 struct mlxsw_driver *mlxsw_driver;
744
745 list_for_each_entry(mlxsw_driver, &mlxsw_core_driver_list, list) {
746 if (strcmp(mlxsw_driver->kind, kind) == 0)
747 return mlxsw_driver;
748 }
749 return NULL;
750}
751
752static struct mlxsw_driver *mlxsw_core_driver_get(const char *kind)
753{
754 struct mlxsw_driver *mlxsw_driver;
755
756 spin_lock(&mlxsw_core_driver_list_lock);
757 mlxsw_driver = __driver_find(kind);
758 spin_unlock(&mlxsw_core_driver_list_lock);
759 return mlxsw_driver;
760}
761
762static void mlxsw_core_driver_put(const char *kind)
763{
764 struct mlxsw_driver *mlxsw_driver;
765
766 spin_lock(&mlxsw_core_driver_list_lock);
767 mlxsw_driver = __driver_find(kind);
768 spin_unlock(&mlxsw_core_driver_list_lock);
769}
770
771static int mlxsw_devlink_port_split(struct devlink *devlink,
772 unsigned int port_index,
773 unsigned int count)
774{
775 struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
776
777 if (port_index >= mlxsw_core->max_ports)
778 return -EINVAL;
779 if (!mlxsw_core->driver->port_split)
780 return -EOPNOTSUPP;
781 return mlxsw_core->driver->port_split(mlxsw_core, port_index, count);
782}
783
784static int mlxsw_devlink_port_unsplit(struct devlink *devlink,
785 unsigned int port_index)
786{
787 struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
788
789 if (port_index >= mlxsw_core->max_ports)
790 return -EINVAL;
791 if (!mlxsw_core->driver->port_unsplit)
792 return -EOPNOTSUPP;
793 return mlxsw_core->driver->port_unsplit(mlxsw_core, port_index);
794}
795
796static int
797mlxsw_devlink_sb_pool_get(struct devlink *devlink,
798 unsigned int sb_index, u16 pool_index,
799 struct devlink_sb_pool_info *pool_info)
800{
801 struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
802 struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
803
804 if (!mlxsw_driver->sb_pool_get)
805 return -EOPNOTSUPP;
806 return mlxsw_driver->sb_pool_get(mlxsw_core, sb_index,
807 pool_index, pool_info);
808}
809
810static int
811mlxsw_devlink_sb_pool_set(struct devlink *devlink,
812 unsigned int sb_index, u16 pool_index, u32 size,
813 enum devlink_sb_threshold_type threshold_type)
814{
815 struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
816 struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
817
818 if (!mlxsw_driver->sb_pool_set)
819 return -EOPNOTSUPP;
820 return mlxsw_driver->sb_pool_set(mlxsw_core, sb_index,
821 pool_index, size, threshold_type);
822}
823
824static void *__dl_port(struct devlink_port *devlink_port)
825{
826 return container_of(devlink_port, struct mlxsw_core_port, devlink_port);
827}
828
829static int mlxsw_devlink_port_type_set(struct devlink_port *devlink_port,
830 enum devlink_port_type port_type)
831{
832 struct mlxsw_core *mlxsw_core = devlink_priv(devlink_port->devlink);
833 struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
834 struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
835
836 if (!mlxsw_driver->port_type_set)
837 return -EOPNOTSUPP;
838
839 return mlxsw_driver->port_type_set(mlxsw_core,
840 mlxsw_core_port->local_port,
841 port_type);
842}
843
844static int mlxsw_devlink_sb_port_pool_get(struct devlink_port *devlink_port,
845 unsigned int sb_index, u16 pool_index,
846 u32 *p_threshold)
847{
848 struct mlxsw_core *mlxsw_core = devlink_priv(devlink_port->devlink);
849 struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
850 struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
851
852 if (!mlxsw_driver->sb_port_pool_get ||
853 !mlxsw_core_port_check(mlxsw_core_port))
854 return -EOPNOTSUPP;
855 return mlxsw_driver->sb_port_pool_get(mlxsw_core_port, sb_index,
856 pool_index, p_threshold);
857}
858
859static int mlxsw_devlink_sb_port_pool_set(struct devlink_port *devlink_port,
860 unsigned int sb_index, u16 pool_index,
861 u32 threshold)
862{
863 struct mlxsw_core *mlxsw_core = devlink_priv(devlink_port->devlink);
864 struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
865 struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
866
867 if (!mlxsw_driver->sb_port_pool_set ||
868 !mlxsw_core_port_check(mlxsw_core_port))
869 return -EOPNOTSUPP;
870 return mlxsw_driver->sb_port_pool_set(mlxsw_core_port, sb_index,
871 pool_index, threshold);
872}
873
874static int
875mlxsw_devlink_sb_tc_pool_bind_get(struct devlink_port *devlink_port,
876 unsigned int sb_index, u16 tc_index,
877 enum devlink_sb_pool_type pool_type,
878 u16 *p_pool_index, u32 *p_threshold)
879{
880 struct mlxsw_core *mlxsw_core = devlink_priv(devlink_port->devlink);
881 struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
882 struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
883
884 if (!mlxsw_driver->sb_tc_pool_bind_get ||
885 !mlxsw_core_port_check(mlxsw_core_port))
886 return -EOPNOTSUPP;
887 return mlxsw_driver->sb_tc_pool_bind_get(mlxsw_core_port, sb_index,
888 tc_index, pool_type,
889 p_pool_index, p_threshold);
890}
891
892static int
893mlxsw_devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port,
894 unsigned int sb_index, u16 tc_index,
895 enum devlink_sb_pool_type pool_type,
896 u16 pool_index, u32 threshold)
897{
898 struct mlxsw_core *mlxsw_core = devlink_priv(devlink_port->devlink);
899 struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
900 struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
901
902 if (!mlxsw_driver->sb_tc_pool_bind_set ||
903 !mlxsw_core_port_check(mlxsw_core_port))
904 return -EOPNOTSUPP;
905 return mlxsw_driver->sb_tc_pool_bind_set(mlxsw_core_port, sb_index,
906 tc_index, pool_type,
907 pool_index, threshold);
908}
909
910static int mlxsw_devlink_sb_occ_snapshot(struct devlink *devlink,
911 unsigned int sb_index)
912{
913 struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
914 struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
915
916 if (!mlxsw_driver->sb_occ_snapshot)
917 return -EOPNOTSUPP;
918 return mlxsw_driver->sb_occ_snapshot(mlxsw_core, sb_index);
919}
920
921static int mlxsw_devlink_sb_occ_max_clear(struct devlink *devlink,
922 unsigned int sb_index)
923{
924 struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
925 struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
926
927 if (!mlxsw_driver->sb_occ_max_clear)
928 return -EOPNOTSUPP;
929 return mlxsw_driver->sb_occ_max_clear(mlxsw_core, sb_index);
930}
931
932static int
933mlxsw_devlink_sb_occ_port_pool_get(struct devlink_port *devlink_port,
934 unsigned int sb_index, u16 pool_index,
935 u32 *p_cur, u32 *p_max)
936{
937 struct mlxsw_core *mlxsw_core = devlink_priv(devlink_port->devlink);
938 struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
939 struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
940
941 if (!mlxsw_driver->sb_occ_port_pool_get ||
942 !mlxsw_core_port_check(mlxsw_core_port))
943 return -EOPNOTSUPP;
944 return mlxsw_driver->sb_occ_port_pool_get(mlxsw_core_port, sb_index,
945 pool_index, p_cur, p_max);
946}
947
948static int
949mlxsw_devlink_sb_occ_tc_port_bind_get(struct devlink_port *devlink_port,
950 unsigned int sb_index, u16 tc_index,
951 enum devlink_sb_pool_type pool_type,
952 u32 *p_cur, u32 *p_max)
953{
954 struct mlxsw_core *mlxsw_core = devlink_priv(devlink_port->devlink);
955 struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
956 struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
957
958 if (!mlxsw_driver->sb_occ_tc_port_bind_get ||
959 !mlxsw_core_port_check(mlxsw_core_port))
960 return -EOPNOTSUPP;
961 return mlxsw_driver->sb_occ_tc_port_bind_get(mlxsw_core_port,
962 sb_index, tc_index,
963 pool_type, p_cur, p_max);
964}
965
966static int mlxsw_devlink_core_bus_device_reload(struct devlink *devlink)
967{
968 struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
969 const struct mlxsw_bus *mlxsw_bus = mlxsw_core->bus;
970 int err;
971
972 if (!mlxsw_bus->reset)
973 return -EOPNOTSUPP;
974
975 mlxsw_core_bus_device_unregister(mlxsw_core, true);
976 mlxsw_bus->reset(mlxsw_core->bus_priv);
977 err = mlxsw_core_bus_device_register(mlxsw_core->bus_info,
978 mlxsw_core->bus,
979 mlxsw_core->bus_priv, true,
980 devlink);
981 if (err)
982 mlxsw_core->reload_fail = true;
983 return err;
984}
985
986static const struct devlink_ops mlxsw_devlink_ops = {
987 .reload = mlxsw_devlink_core_bus_device_reload,
988 .port_type_set = mlxsw_devlink_port_type_set,
989 .port_split = mlxsw_devlink_port_split,
990 .port_unsplit = mlxsw_devlink_port_unsplit,
991 .sb_pool_get = mlxsw_devlink_sb_pool_get,
992 .sb_pool_set = mlxsw_devlink_sb_pool_set,
993 .sb_port_pool_get = mlxsw_devlink_sb_port_pool_get,
994 .sb_port_pool_set = mlxsw_devlink_sb_port_pool_set,
995 .sb_tc_pool_bind_get = mlxsw_devlink_sb_tc_pool_bind_get,
996 .sb_tc_pool_bind_set = mlxsw_devlink_sb_tc_pool_bind_set,
997 .sb_occ_snapshot = mlxsw_devlink_sb_occ_snapshot,
998 .sb_occ_max_clear = mlxsw_devlink_sb_occ_max_clear,
999 .sb_occ_port_pool_get = mlxsw_devlink_sb_occ_port_pool_get,
1000 .sb_occ_tc_port_bind_get = mlxsw_devlink_sb_occ_tc_port_bind_get,
1001};
1002
1003int mlxsw_core_bus_device_register(const struct mlxsw_bus_info *mlxsw_bus_info,
1004 const struct mlxsw_bus *mlxsw_bus,
1005 void *bus_priv, bool reload,
1006 struct devlink *devlink)
1007{
1008 const char *device_kind = mlxsw_bus_info->device_kind;
1009 struct mlxsw_core *mlxsw_core;
1010 struct mlxsw_driver *mlxsw_driver;
1011 struct mlxsw_res *res;
1012 size_t alloc_size;
1013 int err;
1014
1015 mlxsw_driver = mlxsw_core_driver_get(device_kind);
1016 if (!mlxsw_driver)
1017 return -EINVAL;
1018
1019 if (!reload) {
1020 alloc_size = sizeof(*mlxsw_core) + mlxsw_driver->priv_size;
1021 devlink = devlink_alloc(&mlxsw_devlink_ops, alloc_size);
1022 if (!devlink) {
1023 err = -ENOMEM;
1024 goto err_devlink_alloc;
1025 }
1026 }
1027
1028 mlxsw_core = devlink_priv(devlink);
1029 INIT_LIST_HEAD(&mlxsw_core->rx_listener_list);
1030 INIT_LIST_HEAD(&mlxsw_core->event_listener_list);
1031 mlxsw_core->driver = mlxsw_driver;
1032 mlxsw_core->bus = mlxsw_bus;
1033 mlxsw_core->bus_priv = bus_priv;
1034 mlxsw_core->bus_info = mlxsw_bus_info;
1035
1036 res = mlxsw_driver->res_query_enabled ? &mlxsw_core->res : NULL;
1037 err = mlxsw_bus->init(bus_priv, mlxsw_core, mlxsw_driver->profile, res);
1038 if (err)
1039 goto err_bus_init;
1040
1041 if (mlxsw_driver->resources_register && !reload) {
1042 err = mlxsw_driver->resources_register(mlxsw_core);
1043 if (err)
1044 goto err_register_resources;
1045 }
1046
1047 err = mlxsw_ports_init(mlxsw_core);
1048 if (err)
1049 goto err_ports_init;
1050
1051 if (MLXSW_CORE_RES_VALID(mlxsw_core, MAX_LAG) &&
1052 MLXSW_CORE_RES_VALID(mlxsw_core, MAX_LAG_MEMBERS)) {
1053 alloc_size = sizeof(u8) *
1054 MLXSW_CORE_RES_GET(mlxsw_core, MAX_LAG) *
1055 MLXSW_CORE_RES_GET(mlxsw_core, MAX_LAG_MEMBERS);
1056 mlxsw_core->lag.mapping = kzalloc(alloc_size, GFP_KERNEL);
1057 if (!mlxsw_core->lag.mapping) {
1058 err = -ENOMEM;
1059 goto err_alloc_lag_mapping;
1060 }
1061 }
1062
1063 err = mlxsw_emad_init(mlxsw_core);
1064 if (err)
1065 goto err_emad_init;
1066
1067 if (!reload) {
1068 err = devlink_register(devlink, mlxsw_bus_info->dev);
1069 if (err)
1070 goto err_devlink_register;
1071 }
1072
1073 err = mlxsw_hwmon_init(mlxsw_core, mlxsw_bus_info, &mlxsw_core->hwmon);
1074 if (err)
1075 goto err_hwmon_init;
1076
1077 err = mlxsw_thermal_init(mlxsw_core, mlxsw_bus_info,
1078 &mlxsw_core->thermal);
1079 if (err)
1080 goto err_thermal_init;
1081
1082 if (mlxsw_driver->init) {
1083 err = mlxsw_driver->init(mlxsw_core, mlxsw_bus_info);
1084 if (err)
1085 goto err_driver_init;
1086 }
1087
1088 return 0;
1089
1090err_driver_init:
1091 mlxsw_thermal_fini(mlxsw_core->thermal);
1092err_thermal_init:
1093err_hwmon_init:
1094 if (!reload)
1095 devlink_unregister(devlink);
1096err_devlink_register:
1097 mlxsw_emad_fini(mlxsw_core);
1098err_emad_init:
1099 kfree(mlxsw_core->lag.mapping);
1100err_alloc_lag_mapping:
1101 mlxsw_ports_fini(mlxsw_core);
1102err_ports_init:
1103 if (!reload)
1104 devlink_resources_unregister(devlink, NULL);
1105err_register_resources:
1106 mlxsw_bus->fini(bus_priv);
1107err_bus_init:
1108 if (!reload)
1109 devlink_free(devlink);
1110err_devlink_alloc:
1111 mlxsw_core_driver_put(device_kind);
1112 return err;
1113}
1114EXPORT_SYMBOL(mlxsw_core_bus_device_register);
1115
1116void mlxsw_core_bus_device_unregister(struct mlxsw_core *mlxsw_core,
1117 bool reload)
1118{
1119 const char *device_kind = mlxsw_core->bus_info->device_kind;
1120 struct devlink *devlink = priv_to_devlink(mlxsw_core);
1121
1122 if (mlxsw_core->reload_fail)
1123 goto reload_fail;
1124
1125 if (mlxsw_core->driver->fini)
1126 mlxsw_core->driver->fini(mlxsw_core);
1127 mlxsw_thermal_fini(mlxsw_core->thermal);
1128 if (!reload)
1129 devlink_unregister(devlink);
1130 mlxsw_emad_fini(mlxsw_core);
1131 kfree(mlxsw_core->lag.mapping);
1132 mlxsw_ports_fini(mlxsw_core);
1133 if (!reload)
1134 devlink_resources_unregister(devlink, NULL);
1135 mlxsw_core->bus->fini(mlxsw_core->bus_priv);
1136 if (reload)
1137 return;
1138reload_fail:
1139 devlink_free(devlink);
1140 mlxsw_core_driver_put(device_kind);
1141}
1142EXPORT_SYMBOL(mlxsw_core_bus_device_unregister);
1143
1144bool mlxsw_core_skb_transmit_busy(struct mlxsw_core *mlxsw_core,
1145 const struct mlxsw_tx_info *tx_info)
1146{
1147 return mlxsw_core->bus->skb_transmit_busy(mlxsw_core->bus_priv,
1148 tx_info);
1149}
1150EXPORT_SYMBOL(mlxsw_core_skb_transmit_busy);
1151
1152int mlxsw_core_skb_transmit(struct mlxsw_core *mlxsw_core, struct sk_buff *skb,
1153 const struct mlxsw_tx_info *tx_info)
1154{
1155 return mlxsw_core->bus->skb_transmit(mlxsw_core->bus_priv, skb,
1156 tx_info);
1157}
1158EXPORT_SYMBOL(mlxsw_core_skb_transmit);
1159
1160static bool __is_rx_listener_equal(const struct mlxsw_rx_listener *rxl_a,
1161 const struct mlxsw_rx_listener *rxl_b)
1162{
1163 return (rxl_a->func == rxl_b->func &&
1164 rxl_a->local_port == rxl_b->local_port &&
1165 rxl_a->trap_id == rxl_b->trap_id);
1166}
1167
1168static struct mlxsw_rx_listener_item *
1169__find_rx_listener_item(struct mlxsw_core *mlxsw_core,
1170 const struct mlxsw_rx_listener *rxl,
1171 void *priv)
1172{
1173 struct mlxsw_rx_listener_item *rxl_item;
1174
1175 list_for_each_entry(rxl_item, &mlxsw_core->rx_listener_list, list) {
1176 if (__is_rx_listener_equal(&rxl_item->rxl, rxl) &&
1177 rxl_item->priv == priv)
1178 return rxl_item;
1179 }
1180 return NULL;
1181}
1182
1183int mlxsw_core_rx_listener_register(struct mlxsw_core *mlxsw_core,
1184 const struct mlxsw_rx_listener *rxl,
1185 void *priv)
1186{
1187 struct mlxsw_rx_listener_item *rxl_item;
1188
1189 rxl_item = __find_rx_listener_item(mlxsw_core, rxl, priv);
1190 if (rxl_item)
1191 return -EEXIST;
1192 rxl_item = kmalloc(sizeof(*rxl_item), GFP_KERNEL);
1193 if (!rxl_item)
1194 return -ENOMEM;
1195 rxl_item->rxl = *rxl;
1196 rxl_item->priv = priv;
1197
1198 list_add_rcu(&rxl_item->list, &mlxsw_core->rx_listener_list);
1199 return 0;
1200}
1201EXPORT_SYMBOL(mlxsw_core_rx_listener_register);
1202
1203void mlxsw_core_rx_listener_unregister(struct mlxsw_core *mlxsw_core,
1204 const struct mlxsw_rx_listener *rxl,
1205 void *priv)
1206{
1207 struct mlxsw_rx_listener_item *rxl_item;
1208
1209 rxl_item = __find_rx_listener_item(mlxsw_core, rxl, priv);
1210 if (!rxl_item)
1211 return;
1212 list_del_rcu(&rxl_item->list);
1213 synchronize_rcu();
1214 kfree(rxl_item);
1215}
1216EXPORT_SYMBOL(mlxsw_core_rx_listener_unregister);
1217
1218static void mlxsw_core_event_listener_func(struct sk_buff *skb, u8 local_port,
1219 void *priv)
1220{
1221 struct mlxsw_event_listener_item *event_listener_item = priv;
1222 struct mlxsw_reg_info reg;
1223 char *payload;
1224 char *op_tlv = mlxsw_emad_op_tlv(skb);
1225 char *reg_tlv = mlxsw_emad_reg_tlv(skb);
1226
1227 reg.id = mlxsw_emad_op_tlv_register_id_get(op_tlv);
1228 reg.len = (mlxsw_emad_reg_tlv_len_get(reg_tlv) - 1) * sizeof(u32);
1229 payload = mlxsw_emad_reg_payload(op_tlv);
1230 event_listener_item->el.func(®, payload, event_listener_item->priv);
1231 dev_kfree_skb(skb);
1232}
1233
1234static bool __is_event_listener_equal(const struct mlxsw_event_listener *el_a,
1235 const struct mlxsw_event_listener *el_b)
1236{
1237 return (el_a->func == el_b->func &&
1238 el_a->trap_id == el_b->trap_id);
1239}
1240
1241static struct mlxsw_event_listener_item *
1242__find_event_listener_item(struct mlxsw_core *mlxsw_core,
1243 const struct mlxsw_event_listener *el,
1244 void *priv)
1245{
1246 struct mlxsw_event_listener_item *el_item;
1247
1248 list_for_each_entry(el_item, &mlxsw_core->event_listener_list, list) {
1249 if (__is_event_listener_equal(&el_item->el, el) &&
1250 el_item->priv == priv)
1251 return el_item;
1252 }
1253 return NULL;
1254}
1255
1256int mlxsw_core_event_listener_register(struct mlxsw_core *mlxsw_core,
1257 const struct mlxsw_event_listener *el,
1258 void *priv)
1259{
1260 int err;
1261 struct mlxsw_event_listener_item *el_item;
1262 const struct mlxsw_rx_listener rxl = {
1263 .func = mlxsw_core_event_listener_func,
1264 .local_port = MLXSW_PORT_DONT_CARE,
1265 .trap_id = el->trap_id,
1266 };
1267
1268 el_item = __find_event_listener_item(mlxsw_core, el, priv);
1269 if (el_item)
1270 return -EEXIST;
1271 el_item = kmalloc(sizeof(*el_item), GFP_KERNEL);
1272 if (!el_item)
1273 return -ENOMEM;
1274 el_item->el = *el;
1275 el_item->priv = priv;
1276
1277 err = mlxsw_core_rx_listener_register(mlxsw_core, &rxl, el_item);
1278 if (err)
1279 goto err_rx_listener_register;
1280
1281
1282
1283
1284 list_add_rcu(&el_item->list, &mlxsw_core->event_listener_list);
1285
1286 return 0;
1287
1288err_rx_listener_register:
1289 kfree(el_item);
1290 return err;
1291}
1292EXPORT_SYMBOL(mlxsw_core_event_listener_register);
1293
1294void mlxsw_core_event_listener_unregister(struct mlxsw_core *mlxsw_core,
1295 const struct mlxsw_event_listener *el,
1296 void *priv)
1297{
1298 struct mlxsw_event_listener_item *el_item;
1299 const struct mlxsw_rx_listener rxl = {
1300 .func = mlxsw_core_event_listener_func,
1301 .local_port = MLXSW_PORT_DONT_CARE,
1302 .trap_id = el->trap_id,
1303 };
1304
1305 el_item = __find_event_listener_item(mlxsw_core, el, priv);
1306 if (!el_item)
1307 return;
1308 mlxsw_core_rx_listener_unregister(mlxsw_core, &rxl, el_item);
1309 list_del(&el_item->list);
1310 kfree(el_item);
1311}
1312EXPORT_SYMBOL(mlxsw_core_event_listener_unregister);
1313
1314static int mlxsw_core_listener_register(struct mlxsw_core *mlxsw_core,
1315 const struct mlxsw_listener *listener,
1316 void *priv)
1317{
1318 if (listener->is_event)
1319 return mlxsw_core_event_listener_register(mlxsw_core,
1320 &listener->u.event_listener,
1321 priv);
1322 else
1323 return mlxsw_core_rx_listener_register(mlxsw_core,
1324 &listener->u.rx_listener,
1325 priv);
1326}
1327
1328static void mlxsw_core_listener_unregister(struct mlxsw_core *mlxsw_core,
1329 const struct mlxsw_listener *listener,
1330 void *priv)
1331{
1332 if (listener->is_event)
1333 mlxsw_core_event_listener_unregister(mlxsw_core,
1334 &listener->u.event_listener,
1335 priv);
1336 else
1337 mlxsw_core_rx_listener_unregister(mlxsw_core,
1338 &listener->u.rx_listener,
1339 priv);
1340}
1341
1342int mlxsw_core_trap_register(struct mlxsw_core *mlxsw_core,
1343 const struct mlxsw_listener *listener, void *priv)
1344{
1345 char hpkt_pl[MLXSW_REG_HPKT_LEN];
1346 int err;
1347
1348 err = mlxsw_core_listener_register(mlxsw_core, listener, priv);
1349 if (err)
1350 return err;
1351
1352 mlxsw_reg_hpkt_pack(hpkt_pl, listener->action, listener->trap_id,
1353 listener->trap_group, listener->is_ctrl);
1354 err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(hpkt), hpkt_pl);
1355 if (err)
1356 goto err_trap_set;
1357
1358 return 0;
1359
1360err_trap_set:
1361 mlxsw_core_listener_unregister(mlxsw_core, listener, priv);
1362 return err;
1363}
1364EXPORT_SYMBOL(mlxsw_core_trap_register);
1365
1366void mlxsw_core_trap_unregister(struct mlxsw_core *mlxsw_core,
1367 const struct mlxsw_listener *listener,
1368 void *priv)
1369{
1370 char hpkt_pl[MLXSW_REG_HPKT_LEN];
1371
1372 if (!listener->is_event) {
1373 mlxsw_reg_hpkt_pack(hpkt_pl, listener->unreg_action,
1374 listener->trap_id, listener->trap_group,
1375 listener->is_ctrl);
1376 mlxsw_reg_write(mlxsw_core, MLXSW_REG(hpkt), hpkt_pl);
1377 }
1378
1379 mlxsw_core_listener_unregister(mlxsw_core, listener, priv);
1380}
1381EXPORT_SYMBOL(mlxsw_core_trap_unregister);
1382
1383static u64 mlxsw_core_tid_get(struct mlxsw_core *mlxsw_core)
1384{
1385 return atomic64_inc_return(&mlxsw_core->emad.tid);
1386}
1387
1388static int mlxsw_core_reg_access_emad(struct mlxsw_core *mlxsw_core,
1389 const struct mlxsw_reg_info *reg,
1390 char *payload,
1391 enum mlxsw_core_reg_access_type type,
1392 struct list_head *bulk_list,
1393 mlxsw_reg_trans_cb_t *cb,
1394 unsigned long cb_priv)
1395{
1396 u64 tid = mlxsw_core_tid_get(mlxsw_core);
1397 struct mlxsw_reg_trans *trans;
1398 int err;
1399
1400 trans = kzalloc(sizeof(*trans), GFP_KERNEL);
1401 if (!trans)
1402 return -ENOMEM;
1403
1404 err = mlxsw_emad_reg_access(mlxsw_core, reg, payload, type, trans,
1405 bulk_list, cb, cb_priv, tid);
1406 if (err) {
1407 kfree(trans);
1408 return err;
1409 }
1410 return 0;
1411}
1412
1413int mlxsw_reg_trans_query(struct mlxsw_core *mlxsw_core,
1414 const struct mlxsw_reg_info *reg, char *payload,
1415 struct list_head *bulk_list,
1416 mlxsw_reg_trans_cb_t *cb, unsigned long cb_priv)
1417{
1418 return mlxsw_core_reg_access_emad(mlxsw_core, reg, payload,
1419 MLXSW_CORE_REG_ACCESS_TYPE_QUERY,
1420 bulk_list, cb, cb_priv);
1421}
1422EXPORT_SYMBOL(mlxsw_reg_trans_query);
1423
1424int mlxsw_reg_trans_write(struct mlxsw_core *mlxsw_core,
1425 const struct mlxsw_reg_info *reg, char *payload,
1426 struct list_head *bulk_list,
1427 mlxsw_reg_trans_cb_t *cb, unsigned long cb_priv)
1428{
1429 return mlxsw_core_reg_access_emad(mlxsw_core, reg, payload,
1430 MLXSW_CORE_REG_ACCESS_TYPE_WRITE,
1431 bulk_list, cb, cb_priv);
1432}
1433EXPORT_SYMBOL(mlxsw_reg_trans_write);
1434
1435static int mlxsw_reg_trans_wait(struct mlxsw_reg_trans *trans)
1436{
1437 struct mlxsw_core *mlxsw_core = trans->core;
1438 int err;
1439
1440 wait_for_completion(&trans->completion);
1441 cancel_delayed_work_sync(&trans->timeout_dw);
1442 err = trans->err;
1443
1444 if (trans->retries)
1445 dev_warn(mlxsw_core->bus_info->dev, "EMAD retries (%d/%d) (tid=%llx)\n",
1446 trans->retries, MLXSW_EMAD_MAX_RETRY, trans->tid);
1447 if (err)
1448 dev_err(mlxsw_core->bus_info->dev, "EMAD reg access failed (tid=%llx,reg_id=%x(%s),type=%s,status=%x(%s))\n",
1449 trans->tid, trans->reg->id,
1450 mlxsw_reg_id_str(trans->reg->id),
1451 mlxsw_core_reg_access_type_str(trans->type),
1452 trans->emad_status,
1453 mlxsw_emad_op_tlv_status_str(trans->emad_status));
1454
1455 list_del(&trans->bulk_list);
1456 kfree_rcu(trans, rcu);
1457 return err;
1458}
1459
1460int mlxsw_reg_trans_bulk_wait(struct list_head *bulk_list)
1461{
1462 struct mlxsw_reg_trans *trans;
1463 struct mlxsw_reg_trans *tmp;
1464 int sum_err = 0;
1465 int err;
1466
1467 list_for_each_entry_safe(trans, tmp, bulk_list, bulk_list) {
1468 err = mlxsw_reg_trans_wait(trans);
1469 if (err && sum_err == 0)
1470 sum_err = err;
1471 }
1472 return sum_err;
1473}
1474EXPORT_SYMBOL(mlxsw_reg_trans_bulk_wait);
1475
1476static int mlxsw_core_reg_access_cmd(struct mlxsw_core *mlxsw_core,
1477 const struct mlxsw_reg_info *reg,
1478 char *payload,
1479 enum mlxsw_core_reg_access_type type)
1480{
1481 enum mlxsw_emad_op_tlv_status status;
1482 int err, n_retry;
1483 char *in_mbox, *out_mbox, *tmp;
1484
1485 dev_dbg(mlxsw_core->bus_info->dev, "Reg cmd access (reg_id=%x(%s),type=%s)\n",
1486 reg->id, mlxsw_reg_id_str(reg->id),
1487 mlxsw_core_reg_access_type_str(type));
1488
1489 in_mbox = mlxsw_cmd_mbox_alloc();
1490 if (!in_mbox)
1491 return -ENOMEM;
1492
1493 out_mbox = mlxsw_cmd_mbox_alloc();
1494 if (!out_mbox) {
1495 err = -ENOMEM;
1496 goto free_in_mbox;
1497 }
1498
1499 mlxsw_emad_pack_op_tlv(in_mbox, reg, type,
1500 mlxsw_core_tid_get(mlxsw_core));
1501 tmp = in_mbox + MLXSW_EMAD_OP_TLV_LEN * sizeof(u32);
1502 mlxsw_emad_pack_reg_tlv(tmp, reg, payload);
1503
1504 n_retry = 0;
1505retry:
1506 err = mlxsw_cmd_access_reg(mlxsw_core, in_mbox, out_mbox);
1507 if (!err) {
1508 err = mlxsw_emad_process_status(out_mbox, &status);
1509 if (err) {
1510 if (err == -EAGAIN && n_retry++ < MLXSW_EMAD_MAX_RETRY)
1511 goto retry;
1512 dev_err(mlxsw_core->bus_info->dev, "Reg cmd access status failed (status=%x(%s))\n",
1513 status, mlxsw_emad_op_tlv_status_str(status));
1514 }
1515 }
1516
1517 if (!err)
1518 memcpy(payload, mlxsw_emad_reg_payload(out_mbox),
1519 reg->len);
1520
1521 mlxsw_cmd_mbox_free(out_mbox);
1522free_in_mbox:
1523 mlxsw_cmd_mbox_free(in_mbox);
1524 if (err)
1525 dev_err(mlxsw_core->bus_info->dev, "Reg cmd access failed (reg_id=%x(%s),type=%s)\n",
1526 reg->id, mlxsw_reg_id_str(reg->id),
1527 mlxsw_core_reg_access_type_str(type));
1528 return err;
1529}
1530
1531static void mlxsw_core_reg_access_cb(struct mlxsw_core *mlxsw_core,
1532 char *payload, size_t payload_len,
1533 unsigned long cb_priv)
1534{
1535 char *orig_payload = (char *) cb_priv;
1536
1537 memcpy(orig_payload, payload, payload_len);
1538}
1539
1540static int mlxsw_core_reg_access(struct mlxsw_core *mlxsw_core,
1541 const struct mlxsw_reg_info *reg,
1542 char *payload,
1543 enum mlxsw_core_reg_access_type type)
1544{
1545 LIST_HEAD(bulk_list);
1546 int err;
1547
1548
1549
1550
1551
1552 if (!mlxsw_core->emad.use_emad)
1553 return mlxsw_core_reg_access_cmd(mlxsw_core, reg,
1554 payload, type);
1555
1556 err = mlxsw_core_reg_access_emad(mlxsw_core, reg,
1557 payload, type, &bulk_list,
1558 mlxsw_core_reg_access_cb,
1559 (unsigned long) payload);
1560 if (err)
1561 return err;
1562 return mlxsw_reg_trans_bulk_wait(&bulk_list);
1563}
1564
1565int mlxsw_reg_query(struct mlxsw_core *mlxsw_core,
1566 const struct mlxsw_reg_info *reg, char *payload)
1567{
1568 return mlxsw_core_reg_access(mlxsw_core, reg, payload,
1569 MLXSW_CORE_REG_ACCESS_TYPE_QUERY);
1570}
1571EXPORT_SYMBOL(mlxsw_reg_query);
1572
1573int mlxsw_reg_write(struct mlxsw_core *mlxsw_core,
1574 const struct mlxsw_reg_info *reg, char *payload)
1575{
1576 return mlxsw_core_reg_access(mlxsw_core, reg, payload,
1577 MLXSW_CORE_REG_ACCESS_TYPE_WRITE);
1578}
1579EXPORT_SYMBOL(mlxsw_reg_write);
1580
1581void mlxsw_core_skb_receive(struct mlxsw_core *mlxsw_core, struct sk_buff *skb,
1582 struct mlxsw_rx_info *rx_info)
1583{
1584 struct mlxsw_rx_listener_item *rxl_item;
1585 const struct mlxsw_rx_listener *rxl;
1586 u8 local_port;
1587 bool found = false;
1588
1589 if (rx_info->is_lag) {
1590 dev_dbg_ratelimited(mlxsw_core->bus_info->dev, "%s: lag_id = %d, lag_port_index = 0x%x\n",
1591 __func__, rx_info->u.lag_id,
1592 rx_info->trap_id);
1593
1594
1595
1596 local_port = mlxsw_core_lag_mapping_get(mlxsw_core,
1597 rx_info->u.lag_id,
1598 rx_info->lag_port_index);
1599 } else {
1600 local_port = rx_info->u.sys_port;
1601 }
1602
1603 dev_dbg_ratelimited(mlxsw_core->bus_info->dev, "%s: local_port = %d, trap_id = 0x%x\n",
1604 __func__, local_port, rx_info->trap_id);
1605
1606 if ((rx_info->trap_id >= MLXSW_TRAP_ID_MAX) ||
1607 (local_port >= mlxsw_core->max_ports))
1608 goto drop;
1609
1610 rcu_read_lock();
1611 list_for_each_entry_rcu(rxl_item, &mlxsw_core->rx_listener_list, list) {
1612 rxl = &rxl_item->rxl;
1613 if ((rxl->local_port == MLXSW_PORT_DONT_CARE ||
1614 rxl->local_port == local_port) &&
1615 rxl->trap_id == rx_info->trap_id) {
1616 found = true;
1617 break;
1618 }
1619 }
1620 rcu_read_unlock();
1621 if (!found)
1622 goto drop;
1623
1624 rxl->func(skb, local_port, rxl_item->priv);
1625 return;
1626
1627drop:
1628 dev_kfree_skb(skb);
1629}
1630EXPORT_SYMBOL(mlxsw_core_skb_receive);
1631
1632static int mlxsw_core_lag_mapping_index(struct mlxsw_core *mlxsw_core,
1633 u16 lag_id, u8 port_index)
1634{
1635 return MLXSW_CORE_RES_GET(mlxsw_core, MAX_LAG_MEMBERS) * lag_id +
1636 port_index;
1637}
1638
1639void mlxsw_core_lag_mapping_set(struct mlxsw_core *mlxsw_core,
1640 u16 lag_id, u8 port_index, u8 local_port)
1641{
1642 int index = mlxsw_core_lag_mapping_index(mlxsw_core,
1643 lag_id, port_index);
1644
1645 mlxsw_core->lag.mapping[index] = local_port;
1646}
1647EXPORT_SYMBOL(mlxsw_core_lag_mapping_set);
1648
1649u8 mlxsw_core_lag_mapping_get(struct mlxsw_core *mlxsw_core,
1650 u16 lag_id, u8 port_index)
1651{
1652 int index = mlxsw_core_lag_mapping_index(mlxsw_core,
1653 lag_id, port_index);
1654
1655 return mlxsw_core->lag.mapping[index];
1656}
1657EXPORT_SYMBOL(mlxsw_core_lag_mapping_get);
1658
1659void mlxsw_core_lag_mapping_clear(struct mlxsw_core *mlxsw_core,
1660 u16 lag_id, u8 local_port)
1661{
1662 int i;
1663
1664 for (i = 0; i < MLXSW_CORE_RES_GET(mlxsw_core, MAX_LAG_MEMBERS); i++) {
1665 int index = mlxsw_core_lag_mapping_index(mlxsw_core,
1666 lag_id, i);
1667
1668 if (mlxsw_core->lag.mapping[index] == local_port)
1669 mlxsw_core->lag.mapping[index] = 0;
1670 }
1671}
1672EXPORT_SYMBOL(mlxsw_core_lag_mapping_clear);
1673
1674bool mlxsw_core_res_valid(struct mlxsw_core *mlxsw_core,
1675 enum mlxsw_res_id res_id)
1676{
1677 return mlxsw_res_valid(&mlxsw_core->res, res_id);
1678}
1679EXPORT_SYMBOL(mlxsw_core_res_valid);
1680
1681u64 mlxsw_core_res_get(struct mlxsw_core *mlxsw_core,
1682 enum mlxsw_res_id res_id)
1683{
1684 return mlxsw_res_get(&mlxsw_core->res, res_id);
1685}
1686EXPORT_SYMBOL(mlxsw_core_res_get);
1687
1688int mlxsw_core_port_init(struct mlxsw_core *mlxsw_core, u8 local_port)
1689{
1690 struct devlink *devlink = priv_to_devlink(mlxsw_core);
1691 struct mlxsw_core_port *mlxsw_core_port =
1692 &mlxsw_core->ports[local_port];
1693 struct devlink_port *devlink_port = &mlxsw_core_port->devlink_port;
1694 int err;
1695
1696 mlxsw_core_port->local_port = local_port;
1697 err = devlink_port_register(devlink, devlink_port, local_port);
1698 if (err)
1699 memset(mlxsw_core_port, 0, sizeof(*mlxsw_core_port));
1700 return err;
1701}
1702EXPORT_SYMBOL(mlxsw_core_port_init);
1703
1704void mlxsw_core_port_fini(struct mlxsw_core *mlxsw_core, u8 local_port)
1705{
1706 struct mlxsw_core_port *mlxsw_core_port =
1707 &mlxsw_core->ports[local_port];
1708 struct devlink_port *devlink_port = &mlxsw_core_port->devlink_port;
1709
1710 devlink_port_unregister(devlink_port);
1711 memset(mlxsw_core_port, 0, sizeof(*mlxsw_core_port));
1712}
1713EXPORT_SYMBOL(mlxsw_core_port_fini);
1714
1715void mlxsw_core_port_eth_set(struct mlxsw_core *mlxsw_core, u8 local_port,
1716 void *port_driver_priv, struct net_device *dev,
1717 bool split, u32 split_group)
1718{
1719 struct mlxsw_core_port *mlxsw_core_port =
1720 &mlxsw_core->ports[local_port];
1721 struct devlink_port *devlink_port = &mlxsw_core_port->devlink_port;
1722
1723 mlxsw_core_port->port_driver_priv = port_driver_priv;
1724 if (split)
1725 devlink_port_split_set(devlink_port, split_group);
1726 devlink_port_type_eth_set(devlink_port, dev);
1727}
1728EXPORT_SYMBOL(mlxsw_core_port_eth_set);
1729
1730void mlxsw_core_port_ib_set(struct mlxsw_core *mlxsw_core, u8 local_port,
1731 void *port_driver_priv)
1732{
1733 struct mlxsw_core_port *mlxsw_core_port =
1734 &mlxsw_core->ports[local_port];
1735 struct devlink_port *devlink_port = &mlxsw_core_port->devlink_port;
1736
1737 mlxsw_core_port->port_driver_priv = port_driver_priv;
1738 devlink_port_type_ib_set(devlink_port, NULL);
1739}
1740EXPORT_SYMBOL(mlxsw_core_port_ib_set);
1741
1742void mlxsw_core_port_clear(struct mlxsw_core *mlxsw_core, u8 local_port,
1743 void *port_driver_priv)
1744{
1745 struct mlxsw_core_port *mlxsw_core_port =
1746 &mlxsw_core->ports[local_port];
1747 struct devlink_port *devlink_port = &mlxsw_core_port->devlink_port;
1748
1749 mlxsw_core_port->port_driver_priv = port_driver_priv;
1750 devlink_port_type_clear(devlink_port);
1751}
1752EXPORT_SYMBOL(mlxsw_core_port_clear);
1753
1754enum devlink_port_type mlxsw_core_port_type_get(struct mlxsw_core *mlxsw_core,
1755 u8 local_port)
1756{
1757 struct mlxsw_core_port *mlxsw_core_port =
1758 &mlxsw_core->ports[local_port];
1759 struct devlink_port *devlink_port = &mlxsw_core_port->devlink_port;
1760
1761 return devlink_port->type;
1762}
1763EXPORT_SYMBOL(mlxsw_core_port_type_get);
1764
1765static void mlxsw_core_buf_dump_dbg(struct mlxsw_core *mlxsw_core,
1766 const char *buf, size_t size)
1767{
1768 __be32 *m = (__be32 *) buf;
1769 int i;
1770 int count = size / sizeof(__be32);
1771
1772 for (i = count - 1; i >= 0; i--)
1773 if (m[i])
1774 break;
1775 i++;
1776 count = i ? i : 1;
1777 for (i = 0; i < count; i += 4)
1778 dev_dbg(mlxsw_core->bus_info->dev, "%04x - %08x %08x %08x %08x\n",
1779 i * 4, be32_to_cpu(m[i]), be32_to_cpu(m[i + 1]),
1780 be32_to_cpu(m[i + 2]), be32_to_cpu(m[i + 3]));
1781}
1782
1783int mlxsw_cmd_exec(struct mlxsw_core *mlxsw_core, u16 opcode, u8 opcode_mod,
1784 u32 in_mod, bool out_mbox_direct,
1785 char *in_mbox, size_t in_mbox_size,
1786 char *out_mbox, size_t out_mbox_size)
1787{
1788 u8 status;
1789 int err;
1790
1791 BUG_ON(in_mbox_size % sizeof(u32) || out_mbox_size % sizeof(u32));
1792 if (!mlxsw_core->bus->cmd_exec)
1793 return -EOPNOTSUPP;
1794
1795 dev_dbg(mlxsw_core->bus_info->dev, "Cmd exec (opcode=%x(%s),opcode_mod=%x,in_mod=%x)\n",
1796 opcode, mlxsw_cmd_opcode_str(opcode), opcode_mod, in_mod);
1797 if (in_mbox) {
1798 dev_dbg(mlxsw_core->bus_info->dev, "Input mailbox:\n");
1799 mlxsw_core_buf_dump_dbg(mlxsw_core, in_mbox, in_mbox_size);
1800 }
1801
1802 err = mlxsw_core->bus->cmd_exec(mlxsw_core->bus_priv, opcode,
1803 opcode_mod, in_mod, out_mbox_direct,
1804 in_mbox, in_mbox_size,
1805 out_mbox, out_mbox_size, &status);
1806
1807 if (err == -EIO && status != MLXSW_CMD_STATUS_OK) {
1808 dev_err(mlxsw_core->bus_info->dev, "Cmd exec failed (opcode=%x(%s),opcode_mod=%x,in_mod=%x,status=%x(%s))\n",
1809 opcode, mlxsw_cmd_opcode_str(opcode), opcode_mod,
1810 in_mod, status, mlxsw_cmd_status_str(status));
1811 } else if (err == -ETIMEDOUT) {
1812 dev_err(mlxsw_core->bus_info->dev, "Cmd exec timed-out (opcode=%x(%s),opcode_mod=%x,in_mod=%x)\n",
1813 opcode, mlxsw_cmd_opcode_str(opcode), opcode_mod,
1814 in_mod);
1815 }
1816
1817 if (!err && out_mbox) {
1818 dev_dbg(mlxsw_core->bus_info->dev, "Output mailbox:\n");
1819 mlxsw_core_buf_dump_dbg(mlxsw_core, out_mbox, out_mbox_size);
1820 }
1821 return err;
1822}
1823EXPORT_SYMBOL(mlxsw_cmd_exec);
1824
1825int mlxsw_core_schedule_dw(struct delayed_work *dwork, unsigned long delay)
1826{
1827 return queue_delayed_work(mlxsw_wq, dwork, delay);
1828}
1829EXPORT_SYMBOL(mlxsw_core_schedule_dw);
1830
1831bool mlxsw_core_schedule_work(struct work_struct *work)
1832{
1833 return queue_work(mlxsw_owq, work);
1834}
1835EXPORT_SYMBOL(mlxsw_core_schedule_work);
1836
1837void mlxsw_core_flush_owq(void)
1838{
1839 flush_workqueue(mlxsw_owq);
1840}
1841EXPORT_SYMBOL(mlxsw_core_flush_owq);
1842
1843int mlxsw_core_kvd_sizes_get(struct mlxsw_core *mlxsw_core,
1844 const struct mlxsw_config_profile *profile,
1845 u64 *p_single_size, u64 *p_double_size,
1846 u64 *p_linear_size)
1847{
1848 struct mlxsw_driver *driver = mlxsw_core->driver;
1849
1850 if (!driver->kvd_sizes_get)
1851 return -EINVAL;
1852
1853 return driver->kvd_sizes_get(mlxsw_core, profile,
1854 p_single_size, p_double_size,
1855 p_linear_size);
1856}
1857EXPORT_SYMBOL(mlxsw_core_kvd_sizes_get);
1858
1859static int __init mlxsw_core_module_init(void)
1860{
1861 int err;
1862
1863 mlxsw_wq = alloc_workqueue(mlxsw_core_driver_name, WQ_MEM_RECLAIM, 0);
1864 if (!mlxsw_wq)
1865 return -ENOMEM;
1866 mlxsw_owq = alloc_ordered_workqueue("%s_ordered", WQ_MEM_RECLAIM,
1867 mlxsw_core_driver_name);
1868 if (!mlxsw_owq) {
1869 err = -ENOMEM;
1870 goto err_alloc_ordered_workqueue;
1871 }
1872 return 0;
1873
1874err_alloc_ordered_workqueue:
1875 destroy_workqueue(mlxsw_wq);
1876 return err;
1877}
1878
1879static void __exit mlxsw_core_module_exit(void)
1880{
1881 destroy_workqueue(mlxsw_owq);
1882 destroy_workqueue(mlxsw_wq);
1883}
1884
1885module_init(mlxsw_core_module_init);
1886module_exit(mlxsw_core_module_exit);
1887
1888MODULE_LICENSE("Dual BSD/GPL");
1889MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>");
1890MODULE_DESCRIPTION("Mellanox switch device core driver");
1891
