eswitch.c 54.7 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
/*
 * Copyright (c) 2015, Mellanox Technologies. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <linux/etherdevice.h>
#include <linux/mlx5/driver.h>
#include <linux/mlx5/mlx5_ifc.h>
#include <linux/mlx5/vport.h>
37
#include <linux/mlx5/fs.h>
38
39
40
#include "mlx5_core.h"
#include "eswitch.h"

41
42
#define UPLINK_VPORT 0xFFFF

43
44
45
46
47
48
enum {
	MLX5_ACTION_NONE = 0,
	MLX5_ACTION_ADD  = 1,
	MLX5_ACTION_DEL  = 2,
};

49
50
/* E-Switch UC L2 table hash node */
struct esw_uc_addr {
51
52
53
54
55
	struct l2addr_node node;
	u32                table_index;
	u32                vport;
};

56
57
58
59
60
61
62
63
64
65
66
67
68
/* E-Switch MC FDB table hash node */
struct esw_mc_addr { /* SRIOV only */
	struct l2addr_node     node;
	struct mlx5_flow_rule *uplink_rule; /* Forward to uplink rule */
	u32                    refcnt;
};

/* Vport UC/MC hash node */
struct vport_addr {
	struct l2addr_node     node;
	u8                     action;
	u32                    vport;
	struct mlx5_flow_rule *flow_rule; /* SRIOV only */
69
70
	/* A flag indicating that mac was added due to mc promiscuous vport */
	bool mc_promisc;
71
72
73
74
75
};

enum {
	UC_ADDR_CHANGE = BIT(0),
	MC_ADDR_CHANGE = BIT(1),
76
	PROMISC_CHANGE = BIT(3),
77
78
};

79
80
/* Vport context events */
#define SRIOV_VPORT_EVENTS (UC_ADDR_CHANGE | \
81
82
			    MC_ADDR_CHANGE | \
			    PROMISC_CHANGE)
83

84
85
int esw_offloads_init(struct mlx5_eswitch *esw, int nvports);
void esw_offloads_cleanup(struct mlx5_eswitch *esw, int nvports);
86

87
static int arm_vport_context_events_cmd(struct mlx5_core_dev *dev, u16 vport,
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
					u32 events_mask)
{
	int in[MLX5_ST_SZ_DW(modify_nic_vport_context_in)];
	int out[MLX5_ST_SZ_DW(modify_nic_vport_context_out)];
	void *nic_vport_ctx;
	int err;

	memset(out, 0, sizeof(out));
	memset(in, 0, sizeof(in));

	MLX5_SET(modify_nic_vport_context_in, in,
		 opcode, MLX5_CMD_OP_MODIFY_NIC_VPORT_CONTEXT);
	MLX5_SET(modify_nic_vport_context_in, in, field_select.change_event, 1);
	MLX5_SET(modify_nic_vport_context_in, in, vport_number, vport);
	if (vport)
		MLX5_SET(modify_nic_vport_context_in, in, other_vport, 1);
	nic_vport_ctx = MLX5_ADDR_OF(modify_nic_vport_context_in,
				     in, nic_vport_context);

	MLX5_SET(nic_vport_context, nic_vport_ctx, arm_change_event, 1);

	if (events_mask & UC_ADDR_CHANGE)
		MLX5_SET(nic_vport_context, nic_vport_ctx,
			 event_on_uc_address_change, 1);
	if (events_mask & MC_ADDR_CHANGE)
		MLX5_SET(nic_vport_context, nic_vport_ctx,
			 event_on_mc_address_change, 1);
115
116
117
	if (events_mask & PROMISC_CHANGE)
		MLX5_SET(nic_vport_context, nic_vport_ctx,
			 event_on_promisc_change, 1);
118
119
120
121
122
123
124
125
126
127
128
129

	err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
	if (err)
		goto ex;
	err = mlx5_cmd_status_to_err_v2(out);
	if (err)
		goto ex;
	return 0;
ex:
	return err;
}

130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
/* E-Switch vport context HW commands */
static int query_esw_vport_context_cmd(struct mlx5_core_dev *mdev, u32 vport,
				       u32 *out, int outlen)
{
	u32 in[MLX5_ST_SZ_DW(query_esw_vport_context_in)];

	memset(in, 0, sizeof(in));

	MLX5_SET(query_nic_vport_context_in, in, opcode,
		 MLX5_CMD_OP_QUERY_ESW_VPORT_CONTEXT);

	MLX5_SET(query_esw_vport_context_in, in, vport_number, vport);
	if (vport)
		MLX5_SET(query_esw_vport_context_in, in, other_vport, 1);

	return mlx5_cmd_exec_check_status(mdev, in, sizeof(in), out, outlen);
}

static int query_esw_vport_cvlan(struct mlx5_core_dev *dev, u32 vport,
				 u16 *vlan, u8 *qos)
{
	u32 out[MLX5_ST_SZ_DW(query_esw_vport_context_out)];
	int err;
	bool cvlan_strip;
	bool cvlan_insert;

	memset(out, 0, sizeof(out));

	*vlan = 0;
	*qos = 0;

	if (!MLX5_CAP_ESW(dev, vport_cvlan_strip) ||
	    !MLX5_CAP_ESW(dev, vport_cvlan_insert_if_not_exist))
		return -ENOTSUPP;

	err = query_esw_vport_context_cmd(dev, vport, out, sizeof(out));
	if (err)
		goto out;

	cvlan_strip = MLX5_GET(query_esw_vport_context_out, out,
			       esw_vport_context.vport_cvlan_strip);

	cvlan_insert = MLX5_GET(query_esw_vport_context_out, out,
				esw_vport_context.vport_cvlan_insert);

	if (cvlan_strip || cvlan_insert) {
		*vlan = MLX5_GET(query_esw_vport_context_out, out,
				 esw_vport_context.cvlan_id);
		*qos = MLX5_GET(query_esw_vport_context_out, out,
				esw_vport_context.cvlan_pcp);
	}

	esw_debug(dev, "Query Vport[%d] cvlan: VLAN %d qos=%d\n",
		  vport, *vlan, *qos);
out:
	return err;
}

static int modify_esw_vport_context_cmd(struct mlx5_core_dev *dev, u16 vport,
					void *in, int inlen)
{
	u32 out[MLX5_ST_SZ_DW(modify_esw_vport_context_out)];

	memset(out, 0, sizeof(out));

	MLX5_SET(modify_esw_vport_context_in, in, vport_number, vport);
	if (vport)
		MLX5_SET(modify_esw_vport_context_in, in, other_vport, 1);

	MLX5_SET(modify_esw_vport_context_in, in, opcode,
		 MLX5_CMD_OP_MODIFY_ESW_VPORT_CONTEXT);

	return mlx5_cmd_exec_check_status(dev, in, inlen,
					  out, sizeof(out));
}

static int modify_esw_vport_cvlan(struct mlx5_core_dev *dev, u32 vport,
				  u16 vlan, u8 qos, bool set)
{
	u32 in[MLX5_ST_SZ_DW(modify_esw_vport_context_in)];

	memset(in, 0, sizeof(in));

	if (!MLX5_CAP_ESW(dev, vport_cvlan_strip) ||
	    !MLX5_CAP_ESW(dev, vport_cvlan_insert_if_not_exist))
		return -ENOTSUPP;

	esw_debug(dev, "Set Vport[%d] VLAN %d qos %d set=%d\n",
		  vport, vlan, qos, set);

	if (set) {
		MLX5_SET(modify_esw_vport_context_in, in,
			 esw_vport_context.vport_cvlan_strip, 1);
		/* insert only if no vlan in packet */
		MLX5_SET(modify_esw_vport_context_in, in,
			 esw_vport_context.vport_cvlan_insert, 1);
		MLX5_SET(modify_esw_vport_context_in, in,
			 esw_vport_context.cvlan_pcp, qos);
		MLX5_SET(modify_esw_vport_context_in, in,
			 esw_vport_context.cvlan_id, vlan);
	}

	MLX5_SET(modify_esw_vport_context_in, in,
		 field_select.vport_cvlan_strip, 1);
	MLX5_SET(modify_esw_vport_context_in, in,
		 field_select.vport_cvlan_insert, 1);

	return modify_esw_vport_context_cmd(dev, vport, in, sizeof(in));
}

240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
/* HW L2 Table (MPFS) management */
static int set_l2_table_entry_cmd(struct mlx5_core_dev *dev, u32 index,
				  u8 *mac, u8 vlan_valid, u16 vlan)
{
	u32 in[MLX5_ST_SZ_DW(set_l2_table_entry_in)];
	u32 out[MLX5_ST_SZ_DW(set_l2_table_entry_out)];
	u8 *in_mac_addr;

	memset(in, 0, sizeof(in));
	memset(out, 0, sizeof(out));

	MLX5_SET(set_l2_table_entry_in, in, opcode,
		 MLX5_CMD_OP_SET_L2_TABLE_ENTRY);
	MLX5_SET(set_l2_table_entry_in, in, table_index, index);
	MLX5_SET(set_l2_table_entry_in, in, vlan_valid, vlan_valid);
	MLX5_SET(set_l2_table_entry_in, in, vlan, vlan);

	in_mac_addr = MLX5_ADDR_OF(set_l2_table_entry_in, in, mac_address);
	ether_addr_copy(&in_mac_addr[2], mac);

	return mlx5_cmd_exec_check_status(dev, in, sizeof(in),
					  out, sizeof(out));
}

static int del_l2_table_entry_cmd(struct mlx5_core_dev *dev, u32 index)
{
	u32 in[MLX5_ST_SZ_DW(delete_l2_table_entry_in)];
	u32 out[MLX5_ST_SZ_DW(delete_l2_table_entry_out)];

	memset(in, 0, sizeof(in));
	memset(out, 0, sizeof(out));

	MLX5_SET(delete_l2_table_entry_in, in, opcode,
		 MLX5_CMD_OP_DELETE_L2_TABLE_ENTRY);
	MLX5_SET(delete_l2_table_entry_in, in, table_index, index);
	return mlx5_cmd_exec_check_status(dev, in, sizeof(in),
					  out, sizeof(out));
}

static int alloc_l2_table_index(struct mlx5_l2_table *l2_table, u32 *ix)
{
	int err = 0;

	*ix = find_first_zero_bit(l2_table->bitmap, l2_table->size);
	if (*ix >= l2_table->size)
		err = -ENOSPC;
	else
		__set_bit(*ix, l2_table->bitmap);

	return err;
}

static void free_l2_table_index(struct mlx5_l2_table *l2_table, u32 ix)
{
	__clear_bit(ix, l2_table->bitmap);
}

static int set_l2_table_entry(struct mlx5_core_dev *dev, u8 *mac,
			      u8 vlan_valid, u16 vlan,
			      u32 *index)
{
	struct mlx5_l2_table *l2_table = &dev->priv.eswitch->l2_table;
	int err;

	err = alloc_l2_table_index(l2_table, index);
	if (err)
		return err;

	err = set_l2_table_entry_cmd(dev, *index, mac, vlan_valid, vlan);
	if (err)
		free_l2_table_index(l2_table, *index);

	return err;
}

static void del_l2_table_entry(struct mlx5_core_dev *dev, u32 index)
{
	struct mlx5_l2_table *l2_table = &dev->priv.eswitch->l2_table;

	del_l2_table_entry_cmd(dev, index);
	free_l2_table_index(l2_table, index);
}

323
324
/* E-Switch FDB */
static struct mlx5_flow_rule *
325
__esw_fdb_set_vport_rule(struct mlx5_eswitch *esw, u32 vport, bool rx_rule,
326
			 u8 mac_c[ETH_ALEN], u8 mac_v[ETH_ALEN])
327
{
328
329
	int match_header = (is_zero_ether_addr(mac_c) ? 0 :
			    MLX5_MATCH_OUTER_HEADERS);
330
	struct mlx5_flow_rule *flow_rule = NULL;
331
	struct mlx5_flow_destination dest;
332
	struct mlx5_flow_spec *spec;
333
334
	void *mv_misc = NULL;
	void *mc_misc = NULL;
335
336
	u8 *dmac_v = NULL;
	u8 *dmac_c = NULL;
337

338
339
	if (rx_rule)
		match_header |= MLX5_MATCH_MISC_PARAMETERS;
340
341
342

	spec = mlx5_vzalloc(sizeof(*spec));
	if (!spec) {
343
		pr_warn("FDB: Failed to alloc match parameters\n");
344
		return NULL;
345
	}
346
	dmac_v = MLX5_ADDR_OF(fte_match_param, spec->match_value,
347
			      outer_headers.dmac_47_16);
348
	dmac_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
349
350
			      outer_headers.dmac_47_16);

351
	if (match_header & MLX5_MATCH_OUTER_HEADERS) {
352
353
354
		ether_addr_copy(dmac_v, mac_v);
		ether_addr_copy(dmac_c, mac_c);
	}
355

356
	if (match_header & MLX5_MATCH_MISC_PARAMETERS) {
357
358
359
360
		mv_misc  = MLX5_ADDR_OF(fte_match_param, spec->match_value,
					misc_parameters);
		mc_misc  = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
					misc_parameters);
361
362
363
364
		MLX5_SET(fte_match_set_misc, mv_misc, source_port, UPLINK_VPORT);
		MLX5_SET_TO_ONES(fte_match_set_misc, mc_misc, source_port);
	}

365
366
367
368
369
370
	dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT;
	dest.vport_num = vport;

	esw_debug(esw->dev,
		  "\tFDB add rule dmac_v(%pM) dmac_c(%pM) -> vport(%d)\n",
		  dmac_v, dmac_c, vport);
371
	spec->match_criteria_enable = match_header;
372
	flow_rule =
373
		mlx5_add_flow_rule(esw->fdb_table.fdb, spec,
374
375
				   MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,
				   0, &dest);
376
	if (IS_ERR(flow_rule)) {
377
378
379
380
381
		pr_warn(
			"FDB: Failed to add flow rule: dmac_v(%pM) dmac_c(%pM) -> vport(%d), err(%ld)\n",
			 dmac_v, dmac_c, vport, PTR_ERR(flow_rule));
		flow_rule = NULL;
	}
382
383

	kvfree(spec);
384
385
386
	return flow_rule;
}

387
388
389
390
391
392
static struct mlx5_flow_rule *
esw_fdb_set_vport_rule(struct mlx5_eswitch *esw, u8 mac[ETH_ALEN], u32 vport)
{
	u8 mac_c[ETH_ALEN];

	eth_broadcast_addr(mac_c);
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
	return __esw_fdb_set_vport_rule(esw, vport, false, mac_c, mac);
}

static struct mlx5_flow_rule *
esw_fdb_set_vport_allmulti_rule(struct mlx5_eswitch *esw, u32 vport)
{
	u8 mac_c[ETH_ALEN];
	u8 mac_v[ETH_ALEN];

	eth_zero_addr(mac_c);
	eth_zero_addr(mac_v);
	mac_c[0] = 0x01;
	mac_v[0] = 0x01;
	return __esw_fdb_set_vport_rule(esw, vport, false, mac_c, mac_v);
}

static struct mlx5_flow_rule *
esw_fdb_set_vport_promisc_rule(struct mlx5_eswitch *esw, u32 vport)
{
	u8 mac_c[ETH_ALEN];
	u8 mac_v[ETH_ALEN];

	eth_zero_addr(mac_c);
	eth_zero_addr(mac_v);
	return __esw_fdb_set_vport_rule(esw, vport, true, mac_c, mac_v);
418
419
}

420
static int esw_create_legacy_fdb_table(struct mlx5_eswitch *esw, int nvports)
421
{
422
	int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
423
	struct mlx5_core_dev *dev = esw->dev;
424
	struct mlx5_flow_namespace *root_ns;
425
	struct mlx5_flow_table *fdb;
426
427
428
429
	struct mlx5_flow_group *g;
	void *match_criteria;
	int table_size;
	u32 *flow_group_in;
430
	u8 *dmac;
431
	int err = 0;
432
433
434
435

	esw_debug(dev, "Create FDB log_max_size(%d)\n",
		  MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size));

436
437
438
439
440
	root_ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_FDB);
	if (!root_ns) {
		esw_warn(dev, "Failed to get FDB flow namespace\n");
		return -ENOMEM;
	}
441

442
443
444
445
446
447
	flow_group_in = mlx5_vzalloc(inlen);
	if (!flow_group_in)
		return -ENOMEM;
	memset(flow_group_in, 0, inlen);

	table_size = BIT(MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size));
448
	fdb = mlx5_create_flow_table(root_ns, 0, table_size, 0);
449
	if (IS_ERR(fdb)) {
450
451
452
453
		err = PTR_ERR(fdb);
		esw_warn(dev, "Failed to create FDB Table err %d\n", err);
		goto out;
	}
454
	esw->fdb_table.fdb = fdb;
455

456
	/* Addresses group : Full match unicast/multicast addresses */
457
458
459
460
461
	MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,
		 MLX5_MATCH_OUTER_HEADERS);
	match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria);
	dmac = MLX5_ADDR_OF(fte_match_param, match_criteria, outer_headers.dmac_47_16);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0);
462
463
	/* Preserve 2 entries for allmulti and promisc rules*/
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, table_size - 3);
464
465
	eth_broadcast_addr(dmac);
	g = mlx5_create_flow_group(fdb, flow_group_in);
466
	if (IS_ERR(g)) {
467
468
469
470
		err = PTR_ERR(g);
		esw_warn(dev, "Failed to create flow group err(%d)\n", err);
		goto out;
	}
471
	esw->fdb_table.legacy.addr_grp = g;
472
473
474
475
476
477
478
479
480

	/* Allmulti group : One rule that forwards any mcast traffic */
	MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,
		 MLX5_MATCH_OUTER_HEADERS);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, table_size - 2);
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, table_size - 2);
	eth_zero_addr(dmac);
	dmac[0] = 0x01;
	g = mlx5_create_flow_group(fdb, flow_group_in);
481
	if (IS_ERR(g)) {
482
483
484
485
		err = PTR_ERR(g);
		esw_warn(dev, "Failed to create allmulti flow group err(%d)\n", err);
		goto out;
	}
486
	esw->fdb_table.legacy.allmulti_grp = g;
487
488
489
490
491
492
493
494
495
496
497

	/* Promiscuous group :
	 * One rule that forward all unmatched traffic from previous groups
	 */
	eth_zero_addr(dmac);
	MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,
		 MLX5_MATCH_MISC_PARAMETERS);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, misc_parameters.source_port);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, table_size - 1);
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, table_size - 1);
	g = mlx5_create_flow_group(fdb, flow_group_in);
498
	if (IS_ERR(g)) {
499
500
501
502
		err = PTR_ERR(g);
		esw_warn(dev, "Failed to create promisc flow group err(%d)\n", err);
		goto out;
	}
503
	esw->fdb_table.legacy.promisc_grp = g;
504

505
out:
506
	if (err) {
507
508
509
		if (!IS_ERR_OR_NULL(esw->fdb_table.legacy.allmulti_grp)) {
			mlx5_destroy_flow_group(esw->fdb_table.legacy.allmulti_grp);
			esw->fdb_table.legacy.allmulti_grp = NULL;
510
		}
511
512
513
		if (!IS_ERR_OR_NULL(esw->fdb_table.legacy.addr_grp)) {
			mlx5_destroy_flow_group(esw->fdb_table.legacy.addr_grp);
			esw->fdb_table.legacy.addr_grp = NULL;
514
515
516
517
518
519
520
		}
		if (!IS_ERR_OR_NULL(esw->fdb_table.fdb)) {
			mlx5_destroy_flow_table(esw->fdb_table.fdb);
			esw->fdb_table.fdb = NULL;
		}
	}

521
	kvfree(flow_group_in);
522
	return err;
523
524
}

525
static void esw_destroy_legacy_fdb_table(struct mlx5_eswitch *esw)
526
527
528
529
{
	if (!esw->fdb_table.fdb)
		return;

530
	esw_debug(esw->dev, "Destroy FDB Table\n");
531
532
533
	mlx5_destroy_flow_group(esw->fdb_table.legacy.promisc_grp);
	mlx5_destroy_flow_group(esw->fdb_table.legacy.allmulti_grp);
	mlx5_destroy_flow_group(esw->fdb_table.legacy.addr_grp);
534
535
	mlx5_destroy_flow_table(esw->fdb_table.fdb);
	esw->fdb_table.fdb = NULL;
536
537
538
	esw->fdb_table.legacy.addr_grp = NULL;
	esw->fdb_table.legacy.allmulti_grp = NULL;
	esw->fdb_table.legacy.promisc_grp = NULL;
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
}

/* E-Switch vport UC/MC lists management */
typedef int (*vport_addr_action)(struct mlx5_eswitch *esw,
				 struct vport_addr *vaddr);

static int esw_add_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
{
	struct hlist_head *hash = esw->l2_table.l2_hash;
	struct esw_uc_addr *esw_uc;
	u8 *mac = vaddr->node.addr;
	u32 vport = vaddr->vport;
	int err;

	esw_uc = l2addr_hash_find(hash, mac, struct esw_uc_addr);
	if (esw_uc) {
555
556
		esw_warn(esw->dev,
			 "Failed to set L2 mac(%pM) for vport(%d), mac is already in use by vport(%d)\n",
557
			 mac, vport, esw_uc->vport);
558
559
560
		return -EEXIST;
	}

561
562
	esw_uc = l2addr_hash_add(hash, mac, struct esw_uc_addr, GFP_KERNEL);
	if (!esw_uc)
563
		return -ENOMEM;
564
	esw_uc->vport = vport;
565

566
	err = set_l2_table_entry(esw->dev, mac, 0, 0, &esw_uc->table_index);
567
	if (err)
568
569
		goto abort;

570
571
	/* SRIOV is enabled: Forward UC MAC to vport */
	if (esw->fdb_table.fdb && esw->mode == SRIOV_LEGACY)
572
573
574
575
576
577
578
		vaddr->flow_rule = esw_fdb_set_vport_rule(esw, mac, vport);

	esw_debug(esw->dev, "\tADDED UC MAC: vport[%d] %pM index:%d fr(%p)\n",
		  vport, mac, esw_uc->table_index, vaddr->flow_rule);
	return err;
abort:
	l2addr_hash_del(esw_uc);
579
580
581
	return err;
}

582
static int esw_del_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
583
{
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
	struct hlist_head *hash = esw->l2_table.l2_hash;
	struct esw_uc_addr *esw_uc;
	u8 *mac = vaddr->node.addr;
	u32 vport = vaddr->vport;

	esw_uc = l2addr_hash_find(hash, mac, struct esw_uc_addr);
	if (!esw_uc || esw_uc->vport != vport) {
		esw_debug(esw->dev,
			  "MAC(%pM) doesn't belong to vport (%d)\n",
			  mac, vport);
		return -EINVAL;
	}
	esw_debug(esw->dev, "\tDELETE UC MAC: vport[%d] %pM index:%d fr(%p)\n",
		  vport, mac, esw_uc->table_index, vaddr->flow_rule);

	del_l2_table_entry(esw->dev, esw_uc->table_index);

	if (vaddr->flow_rule)
602
		mlx5_del_flow_rule(vaddr->flow_rule);
603
604
605
606
607
608
	vaddr->flow_rule = NULL;

	l2addr_hash_del(esw_uc);
	return 0;
}

609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
static void update_allmulti_vports(struct mlx5_eswitch *esw,
				   struct vport_addr *vaddr,
				   struct esw_mc_addr *esw_mc)
{
	u8 *mac = vaddr->node.addr;
	u32 vport_idx = 0;

	for (vport_idx = 0; vport_idx < esw->total_vports; vport_idx++) {
		struct mlx5_vport *vport = &esw->vports[vport_idx];
		struct hlist_head *vport_hash = vport->mc_list;
		struct vport_addr *iter_vaddr =
					l2addr_hash_find(vport_hash,
							 mac,
							 struct vport_addr);
		if (IS_ERR_OR_NULL(vport->allmulti_rule) ||
		    vaddr->vport == vport_idx)
			continue;
		switch (vaddr->action) {
		case MLX5_ACTION_ADD:
			if (iter_vaddr)
				continue;
			iter_vaddr = l2addr_hash_add(vport_hash, mac,
						     struct vport_addr,
						     GFP_KERNEL);
			if (!iter_vaddr) {
				esw_warn(esw->dev,
					 "ALL-MULTI: Failed to add MAC(%pM) to vport[%d] DB\n",
					 mac, vport_idx);
				continue;
			}
			iter_vaddr->vport = vport_idx;
			iter_vaddr->flow_rule =
					esw_fdb_set_vport_rule(esw,
							       mac,
							       vport_idx);
644
			iter_vaddr->mc_promisc = true;
645
646
647
648
649
650
651
652
653
654
655
			break;
		case MLX5_ACTION_DEL:
			if (!iter_vaddr)
				continue;
			mlx5_del_flow_rule(iter_vaddr->flow_rule);
			l2addr_hash_del(iter_vaddr);
			break;
		}
	}
}

656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
static int esw_add_mc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
{
	struct hlist_head *hash = esw->mc_table;
	struct esw_mc_addr *esw_mc;
	u8 *mac = vaddr->node.addr;
	u32 vport = vaddr->vport;

	if (!esw->fdb_table.fdb)
		return 0;

	esw_mc = l2addr_hash_find(hash, mac, struct esw_mc_addr);
	if (esw_mc)
		goto add;

	esw_mc = l2addr_hash_add(hash, mac, struct esw_mc_addr, GFP_KERNEL);
	if (!esw_mc)
		return -ENOMEM;

	esw_mc->uplink_rule = /* Forward MC MAC to Uplink */
		esw_fdb_set_vport_rule(esw, mac, UPLINK_VPORT);
676
677
678
679

	/* Add this multicast mac to all the mc promiscuous vports */
	update_allmulti_vports(esw, vaddr, esw_mc);

680
add:
681
682
683
684
685
686
	/* If the multicast mac is added as a result of mc promiscuous vport,
	 * don't increment the multicast ref count
	 */
	if (!vaddr->mc_promisc)
		esw_mc->refcnt++;

687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
	/* Forward MC MAC to vport */
	vaddr->flow_rule = esw_fdb_set_vport_rule(esw, mac, vport);
	esw_debug(esw->dev,
		  "\tADDED MC MAC: vport[%d] %pM fr(%p) refcnt(%d) uplinkfr(%p)\n",
		  vport, mac, vaddr->flow_rule,
		  esw_mc->refcnt, esw_mc->uplink_rule);
	return 0;
}

static int esw_del_mc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
{
	struct hlist_head *hash = esw->mc_table;
	struct esw_mc_addr *esw_mc;
	u8 *mac = vaddr->node.addr;
	u32 vport = vaddr->vport;
702

703
704
705
706
707
708
709
	if (!esw->fdb_table.fdb)
		return 0;

	esw_mc = l2addr_hash_find(hash, mac, struct esw_mc_addr);
	if (!esw_mc) {
		esw_warn(esw->dev,
			 "Failed to find eswitch MC addr for MAC(%pM) vport(%d)",
710
711
712
			 mac, vport);
		return -EINVAL;
	}
713
714
715
716
717
718
	esw_debug(esw->dev,
		  "\tDELETE MC MAC: vport[%d] %pM fr(%p) refcnt(%d) uplinkfr(%p)\n",
		  vport, mac, vaddr->flow_rule, esw_mc->refcnt,
		  esw_mc->uplink_rule);

	if (vaddr->flow_rule)
719
		mlx5_del_flow_rule(vaddr->flow_rule);
720
721
	vaddr->flow_rule = NULL;

722
723
724
725
	/* If the multicast mac is added as a result of mc promiscuous vport,
	 * don't decrement the multicast ref count.
	 */
	if (vaddr->mc_promisc || (--esw_mc->refcnt > 0))
726
		return 0;
727

728
729
730
	/* Remove this multicast mac from all the mc promiscuous vports */
	update_allmulti_vports(esw, vaddr, esw_mc);

731
	if (esw_mc->uplink_rule)
732
		mlx5_del_flow_rule(esw_mc->uplink_rule);
733
734

	l2addr_hash_del(esw_mc);
735
736
737
	return 0;
}

738
739
740
/* Apply vport UC/MC list to HW l2 table and FDB table */
static void esw_apply_vport_addr_list(struct mlx5_eswitch *esw,
				      u32 vport_num, int list_type)
741
742
{
	struct mlx5_vport *vport = &esw->vports[vport_num];
743
744
745
746
	bool is_uc = list_type == MLX5_NVPRT_LIST_TYPE_UC;
	vport_addr_action vport_addr_add;
	vport_addr_action vport_addr_del;
	struct vport_addr *addr;
747
748
749
750
751
	struct l2addr_node *node;
	struct hlist_head *hash;
	struct hlist_node *tmp;
	int hi;

752
753
754
755
756
757
	vport_addr_add = is_uc ? esw_add_uc_addr :
				 esw_add_mc_addr;
	vport_addr_del = is_uc ? esw_del_uc_addr :
				 esw_del_mc_addr;

	hash = is_uc ? vport->uc_list : vport->mc_list;
758
	for_each_l2hash_node(node, tmp, hash, hi) {
759
		addr = container_of(node, struct vport_addr, node);
760
761
		switch (addr->action) {
		case MLX5_ACTION_ADD:
762
			vport_addr_add(esw, addr);
763
764
765
			addr->action = MLX5_ACTION_NONE;
			break;
		case MLX5_ACTION_DEL:
766
			vport_addr_del(esw, addr);
767
768
769
770
771
772
			l2addr_hash_del(addr);
			break;
		}
	}
}

773
774
775
/* Sync vport UC/MC list from vport context */
static void esw_update_vport_addr_list(struct mlx5_eswitch *esw,
				       u32 vport_num, int list_type)
776
777
{
	struct mlx5_vport *vport = &esw->vports[vport_num];
778
	bool is_uc = list_type == MLX5_NVPRT_LIST_TYPE_UC;
779
	u8 (*mac_list)[ETH_ALEN];
780
781
	struct l2addr_node *node;
	struct vport_addr *addr;
782
783
784
785
786
787
788
	struct hlist_head *hash;
	struct hlist_node *tmp;
	int size;
	int err;
	int hi;
	int i;

789
790
	size = is_uc ? MLX5_MAX_UC_PER_VPORT(esw->dev) :
		       MLX5_MAX_MC_PER_VPORT(esw->dev);
791
792
793
794
795

	mac_list = kcalloc(size, ETH_ALEN, GFP_KERNEL);
	if (!mac_list)
		return;

796
	hash = is_uc ? vport->uc_list : vport->mc_list;
797
798

	for_each_l2hash_node(node, tmp, hash, hi) {
799
		addr = container_of(node, struct vport_addr, node);
800
801
802
		addr->action = MLX5_ACTION_DEL;
	}

803
804
805
	if (!vport->enabled)
		goto out;

806
	err = mlx5_query_nic_vport_mac_list(esw->dev, vport_num, list_type,
807
808
					    mac_list, &size);
	if (err)
809
		goto out;
810
811
	esw_debug(esw->dev, "vport[%d] context update %s list size (%d)\n",
		  vport_num, is_uc ? "UC" : "MC", size);
812
813

	for (i = 0; i < size; i++) {
814
		if (is_uc && !is_valid_ether_addr(mac_list[i]))
815
816
			continue;

817
818
819
820
		if (!is_uc && !is_multicast_ether_addr(mac_list[i]))
			continue;

		addr = l2addr_hash_find(hash, mac_list[i], struct vport_addr);
821
822
		if (addr) {
			addr->action = MLX5_ACTION_NONE;
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
			/* If this mac was previously added because of allmulti
			 * promiscuous rx mode, its now converted to be original
			 * vport mac.
			 */
			if (addr->mc_promisc) {
				struct esw_mc_addr *esw_mc =
					l2addr_hash_find(esw->mc_table,
							 mac_list[i],
							 struct esw_mc_addr);
				if (!esw_mc) {
					esw_warn(esw->dev,
						 "Failed to MAC(%pM) in mcast DB\n",
						 mac_list[i]);
					continue;
				}
				esw_mc->refcnt++;
				addr->mc_promisc = false;
			}
841
842
843
			continue;
		}

844
		addr = l2addr_hash_add(hash, mac_list[i], struct vport_addr,
845
846
847
848
849
850
851
				       GFP_KERNEL);
		if (!addr) {
			esw_warn(esw->dev,
				 "Failed to add MAC(%pM) to vport[%d] DB\n",
				 mac_list[i], vport_num);
			continue;
		}
852
		addr->vport = vport_num;
853
854
		addr->action = MLX5_ACTION_ADD;
	}
855
out:
856
857
858
	kfree(mac_list);
}

859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
/* Sync vport UC/MC list from vport context
 * Must be called after esw_update_vport_addr_list
 */
static void esw_update_vport_mc_promisc(struct mlx5_eswitch *esw, u32 vport_num)
{
	struct mlx5_vport *vport = &esw->vports[vport_num];
	struct l2addr_node *node;
	struct vport_addr *addr;
	struct hlist_head *hash;
	struct hlist_node *tmp;
	int hi;

	hash = vport->mc_list;

	for_each_l2hash_node(node, tmp, esw->mc_table, hi) {
		u8 *mac = node->addr;

		addr = l2addr_hash_find(hash, mac, struct vport_addr);
		if (addr) {
			if (addr->action == MLX5_ACTION_DEL)
				addr->action = MLX5_ACTION_NONE;
			continue;
		}
		addr = l2addr_hash_add(hash, mac, struct vport_addr,
				       GFP_KERNEL);
		if (!addr) {
			esw_warn(esw->dev,
				 "Failed to add allmulti MAC(%pM) to vport[%d] DB\n",
				 mac, vport_num);
			continue;
		}
		addr->vport = vport_num;
		addr->action = MLX5_ACTION_ADD;
		addr->mc_promisc = true;
	}
}

/* Apply vport rx mode to HW FDB table */
static void esw_apply_vport_rx_mode(struct mlx5_eswitch *esw, u32 vport_num,
				    bool promisc, bool mc_promisc)
{
	struct esw_mc_addr *allmulti_addr = esw->mc_promisc;
	struct mlx5_vport *vport = &esw->vports[vport_num];

	if (IS_ERR_OR_NULL(vport->allmulti_rule) != mc_promisc)
		goto promisc;

	if (mc_promisc) {
		vport->allmulti_rule =
				esw_fdb_set_vport_allmulti_rule(esw, vport_num);
		if (!allmulti_addr->uplink_rule)
			allmulti_addr->uplink_rule =
				esw_fdb_set_vport_allmulti_rule(esw,
								UPLINK_VPORT);
		allmulti_addr->refcnt++;
	} else if (vport->allmulti_rule) {
		mlx5_del_flow_rule(vport->allmulti_rule);
		vport->allmulti_rule = NULL;

		if (--allmulti_addr->refcnt > 0)
			goto promisc;

		if (allmulti_addr->uplink_rule)
			mlx5_del_flow_rule(allmulti_addr->uplink_rule);
		allmulti_addr->uplink_rule = NULL;
	}

promisc:
	if (IS_ERR_OR_NULL(vport->promisc_rule) != promisc)
		return;

	if (promisc) {
		vport->promisc_rule = esw_fdb_set_vport_promisc_rule(esw,
								     vport_num);
	} else if (vport->promisc_rule) {
		mlx5_del_flow_rule(vport->promisc_rule);
		vport->promisc_rule = NULL;
	}
}

/* Sync vport rx mode from vport context */
static void esw_update_vport_rx_mode(struct mlx5_eswitch *esw, u32 vport_num)
{
	struct mlx5_vport *vport = &esw->vports[vport_num];
	int promisc_all = 0;
	int promisc_uc = 0;
	int promisc_mc = 0;
	int err;

	err = mlx5_query_nic_vport_promisc(esw->dev,
					   vport_num,
					   &promisc_uc,
					   &promisc_mc,
					   &promisc_all);
	if (err)
		return;
	esw_debug(esw->dev, "vport[%d] context update rx mode promisc_all=%d, all_multi=%d\n",
		  vport_num, promisc_all, promisc_mc);

	if (!vport->trusted || !vport->enabled) {
		promisc_uc = 0;
		promisc_mc = 0;
		promisc_all = 0;
	}

	esw_apply_vport_rx_mode(esw, vport_num, promisc_all,
				(promisc_all || promisc_mc));
}

968
static void esw_vport_change_handle_locked(struct mlx5_vport *vport)
969
970
{
	struct mlx5_core_dev *dev = vport->dev;
971
	struct mlx5_eswitch *esw = dev->priv.eswitch;
972
973
974
	u8 mac[ETH_ALEN];

	mlx5_query_nic_vport_mac_address(dev, vport->vport, mac);
975
976
977
978
979
980
981
982
983
	esw_debug(dev, "vport[%d] Context Changed: perm mac: %pM\n",
		  vport->vport, mac);

	if (vport->enabled_events & UC_ADDR_CHANGE) {
		esw_update_vport_addr_list(esw, vport->vport,
					   MLX5_NVPRT_LIST_TYPE_UC);
		esw_apply_vport_addr_list(esw, vport->vport,
					  MLX5_NVPRT_LIST_TYPE_UC);
	}
984

985
986
987
	if (vport->enabled_events & MC_ADDR_CHANGE) {
		esw_update_vport_addr_list(esw, vport->vport,
					   MLX5_NVPRT_LIST_TYPE_MC);
988
989
990
991
992
993
994
995
996
	}

	if (vport->enabled_events & PROMISC_CHANGE) {
		esw_update_vport_rx_mode(esw, vport->vport);
		if (!IS_ERR_OR_NULL(vport->allmulti_rule))
			esw_update_vport_mc_promisc(esw, vport->vport);
	}

	if (vport->enabled_events & (PROMISC_CHANGE | MC_ADDR_CHANGE)) {
997
998
999
		esw_apply_vport_addr_list(esw, vport->vport,
					  MLX5_NVPRT_LIST_TYPE_MC);
	}
1000

1001
	esw_debug(esw->dev, "vport[%d] Context Changed: Done\n", vport->vport);
1002
1003
	if (vport->enabled)
		arm_vport_context_events_cmd(dev, vport->vport,
1004
					     vport->enabled_events);
1005
1006
}

1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
static void esw_vport_change_handler(struct work_struct *work)
{
	struct mlx5_vport *vport =
		container_of(work, struct mlx5_vport, vport_change_handler);
	struct mlx5_eswitch *esw = vport->dev->priv.eswitch;

	mutex_lock(&esw->state_lock);
	esw_vport_change_handle_locked(vport);
	mutex_unlock(&esw->state_lock);
}

1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
static void esw_vport_enable_egress_acl(struct mlx5_eswitch *esw,
					struct mlx5_vport *vport)
{
	int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
	struct mlx5_flow_group *vlan_grp = NULL;
	struct mlx5_flow_group *drop_grp = NULL;
	struct mlx5_core_dev *dev = esw->dev;
	struct mlx5_flow_namespace *root_ns;
	struct mlx5_flow_table *acl;
	void *match_criteria;
	u32 *flow_group_in;
	/* The egress acl table contains 2 rules:
	 * 1)Allow traffic with vlan_tag=vst_vlan_id
	 * 2)Drop all other traffic.
	 */
	int table_size = 2;
	int err = 0;

1036
1037
	if (!MLX5_CAP_ESW_EGRESS_ACL(dev, ft_support) ||
	    !IS_ERR_OR_NULL(vport->egress.acl))
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
		return;

	esw_debug(dev, "Create vport[%d] egress ACL log_max_size(%d)\n",
		  vport->vport, MLX5_CAP_ESW_EGRESS_ACL(dev, log_max_ft_size));

	root_ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_ESW_EGRESS);
	if (!root_ns) {
		esw_warn(dev, "Failed to get E-Switch egress flow namespace\n");
		return;
	}

	flow_group_in = mlx5_vzalloc(inlen);
	if (!flow_group_in)
		return;

	acl = mlx5_create_vport_flow_table(root_ns, 0, table_size, 0, vport->vport);
1054
	if (IS_ERR(acl)) {
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
		err = PTR_ERR(acl);
		esw_warn(dev, "Failed to create E-Switch vport[%d] egress flow Table, err(%d)\n",
			 vport->vport, err);
		goto out;
	}

	MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
	match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.vlan_tag);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.first_vid);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0);
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 0);

	vlan_grp = mlx5_create_flow_group(acl, flow_group_in);
1069
	if (IS_ERR(vlan_grp)) {
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
		err = PTR_ERR(vlan_grp);
		esw_warn(dev, "Failed to create E-Switch vport[%d] egress allowed vlans flow group, err(%d)\n",
			 vport->vport, err);
		goto out;
	}

	memset(flow_group_in, 0, inlen);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 1);
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 1);
	drop_grp = mlx5_create_flow_group(acl, flow_group_in);
1080
	if (IS_ERR(drop_grp)) {
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
		err = PTR_ERR(drop_grp);
		esw_warn(dev, "Failed to create E-Switch vport[%d] egress drop flow group, err(%d)\n",
			 vport->vport, err);
		goto out;
	}

	vport->egress.acl = acl;
	vport->egress.drop_grp = drop_grp;
	vport->egress.allowed_vlans_grp = vlan_grp;
out:
1091
	kvfree(flow_group_in);
1092
1093
1094
1095
1096
1097
	if (err && !IS_ERR_OR_NULL(vlan_grp))
		mlx5_destroy_flow_group(vlan_grp);
	if (err && !IS_ERR_OR_NULL(acl))
		mlx5_destroy_flow_table(acl);
}

1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
static void esw_vport_cleanup_egress_rules(struct mlx5_eswitch *esw,
					   struct mlx5_vport *vport)
{
	if (!IS_ERR_OR_NULL(vport->egress.allowed_vlan))
		mlx5_del_flow_rule(vport->egress.allowed_vlan);

	if (!IS_ERR_OR_NULL(vport->egress.drop_rule))
		mlx5_del_flow_rule(vport->egress.drop_rule);

	vport->egress.allowed_vlan = NULL;
	vport->egress.drop_rule = NULL;
}

1111
1112
1113
1114
1115
1116
1117
1118
static void esw_vport_disable_egress_acl(struct mlx5_eswitch *esw,
					 struct mlx5_vport *vport)
{
	if (IS_ERR_OR_NULL(vport->egress.acl))
		return;

	esw_debug(esw->dev, "Destroy vport[%d] E-Switch egress ACL\n", vport->vport);

1119
	esw_vport_cleanup_egress_rules(esw, vport);
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
	mlx5_destroy_flow_group(vport->egress.allowed_vlans_grp);
	mlx5_destroy_flow_group(vport->egress.drop_grp);
	mlx5_destroy_flow_table(vport->egress.acl);
	vport->egress.allowed_vlans_grp = NULL;
	vport->egress.drop_grp = NULL;
	vport->egress.acl = NULL;
}

static void esw_vport_enable_ingress_acl(struct mlx5_eswitch *esw,
					 struct mlx5_vport *vport)
{
	int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
	struct mlx5_core_dev *dev = esw->dev;
	struct mlx5_flow_namespace *root_ns;
	struct mlx5_flow_table *acl;
	struct mlx5_flow_group *g;
	void *match_criteria;
	u32 *flow_group_in;
	/* The ingress acl table contains 4 groups
	 * (2 active rules at the same time -
	 *      1 allow rule from one of the first 3 groups.
	 *      1 drop rule from the last group):
	 * 1)Allow untagged traffic with smac=original mac.
	 * 2)Allow untagged traffic.
	 * 3)Allow traffic with smac=original mac.
	 * 4)Drop all other traffic.
	 */
	int table_size = 4;
	int err = 0;

1150
1151
	if (!MLX5_CAP_ESW_INGRESS_ACL(dev, ft_support) ||
	    !IS_ERR_OR_NULL(vport->ingress.acl))
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
		return;

	esw_debug(dev, "Create vport[%d] ingress ACL log_max_size(%d)\n",
		  vport->vport, MLX5_CAP_ESW_INGRESS_ACL(dev, log_max_ft_size));

	root_ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_ESW_INGRESS);
	if (!root_ns) {
		esw_warn(dev, "Failed to get E-Switch ingress flow namespace\n");
		return;
	}

	flow_group_in = mlx5_vzalloc(inlen);
	if (!flow_group_in)
		return;

	acl = mlx5_create_vport_flow_table(root_ns, 0, table_size, 0, vport->vport);
1168
	if (IS_ERR(acl)) {
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
		err = PTR_ERR(acl);
		esw_warn(dev, "Failed to create E-Switch vport[%d] ingress flow Table, err(%d)\n",
			 vport->vport, err);
		goto out;
	}
	vport->ingress.acl = acl;

	match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria);

	MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.vlan_tag);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.smac_47_16);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.smac_15_0);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0);
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 0);

	g = mlx5_create_flow_group(acl, flow_group_in);
1186
	if (IS_ERR(g)) {
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
		err = PTR_ERR(g);
		esw_warn(dev, "Failed to create E-Switch vport[%d] ingress untagged spoofchk flow group, err(%d)\n",
			 vport->vport, err);
		goto out;
	}
	vport->ingress.allow_untagged_spoofchk_grp = g;

	memset(flow_group_in, 0, inlen);
	MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.vlan_tag);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 1);
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 1);

	g = mlx5_create_flow_group(acl, flow_group_in);
1201
	if (IS_ERR(g)) {
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
		err = PTR_ERR(g);
		esw_warn(dev, "Failed to create E-Switch vport[%d] ingress untagged flow group, err(%d)\n",
			 vport->vport, err);
		goto out;
	}
	vport->ingress.allow_untagged_only_grp = g;

	memset(flow_group_in, 0, inlen);
	MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.smac_47_16);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.smac_15_0);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 2);
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 2);

	g = mlx5_create_flow_group(acl, flow_group_in);
1217
	if (IS_ERR(g)) {
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
		err = PTR_ERR(g);
		esw_warn(dev, "Failed to create E-Switch vport[%d] ingress spoofchk flow group, err(%d)\n",
			 vport->vport, err);
		goto out;
	}
	vport->ingress.allow_spoofchk_only_grp = g;

	memset(flow_group_in, 0, inlen);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 3);
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 3);

	g = mlx5_create_flow_group(acl, flow_group_in);
1230
	if (IS_ERR(g)) {
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
		err = PTR_ERR(g);
		esw_warn(dev, "Failed to create E-Switch vport[%d] ingress drop flow group, err(%d)\n",
			 vport->vport, err);
		goto out;
	}
	vport->ingress.drop_grp = g;

out:
	if (err) {
		if (!IS_ERR_OR_NULL(vport->ingress.allow_spoofchk_only_grp))
			mlx5_destroy_flow_group(
					vport->ingress.allow_spoofchk_only_grp);
		if (!IS_ERR_OR_NULL(vport->ingress.allow_untagged_only_grp))
			mlx5_destroy_flow_group(
					vport->ingress.allow_untagged_only_grp);
		if (!IS_ERR_OR_NULL(vport->ingress.allow_untagged_spoofchk_grp))
			mlx5_destroy_flow_group(
				vport->ingress.allow_untagged_spoofchk_grp);
		if (!IS_ERR_OR_NULL(vport->ingress.acl))
			mlx5_destroy_flow_table(vport->ingress.acl);
	}

1253
	kvfree(flow_group_in);
1254
1255
}

1256
1257
1258
1259
1260
static void esw_vport_cleanup_ingress_rules(struct mlx5_eswitch *esw,
					    struct mlx5_vport *vport)
{
	if (!IS_ERR_OR_NULL(vport->ingress.drop_rule))
		mlx5_del_flow_rule(vport->ingress.drop_rule);
1261
1262
1263
1264

	if (!IS_ERR_OR_NULL(vport->ingress.allow_rule))
		mlx5_del_flow_rule(vport->ingress.allow_rule);

1265
	vport->ingress.drop_rule = NULL;
1266
	vport->ingress.allow_rule = NULL;
1267
1268
}

1269
1270
1271
1272
1273
1274
1275
1276
static void esw_vport_disable_ingress_acl(struct mlx5_eswitch *esw,
					  struct mlx5_vport *vport)
{
	if (IS_ERR_OR_NULL(vport->ingress.acl))
		return;

	esw_debug(esw->dev, "Destroy vport[%d] E-Switch ingress ACL\n", vport->vport);

1277
	esw_vport_cleanup_ingress_rules(esw, vport);
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
	mlx5_destroy_flow_group(vport->ingress.allow_spoofchk_only_grp);
	mlx5_destroy_flow_group(vport->ingress.allow_untagged_only_grp);
	mlx5_destroy_flow_group(vport->ingress.allow_untagged_spoofchk_grp);
	mlx5_destroy_flow_group(vport->ingress.drop_grp);
	mlx5_destroy_flow_table(vport->ingress.acl);
	vport->ingress.acl = NULL;
	vport->ingress.drop_grp = NULL;
	vport->ingress.allow_spoofchk_only_grp = NULL;
	vport->ingress.allow_untagged_only_grp = NULL;
	vport->ingress.allow_untagged_spoofchk_grp = NULL;
}

1290
1291
1292
static int esw_vport_ingress_config(struct mlx5_eswitch *esw,
				    struct mlx5_vport *vport)
{
1293
	struct mlx5_flow_spec *spec;
1294
	u8 smac[ETH_ALEN];
1295
	int err = 0;
1296
	u8 *smac_v;
1297

1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
	if (vport->spoofchk) {
		err = mlx5_query_nic_vport_mac_address(esw->dev, vport->vport, smac);
		if (err) {
			esw_warn(esw->dev,
				 "vport[%d] configure ingress rules failed, query smac failed, err(%d)\n",
				 vport->vport, err);
			return err;
		}

		if (!is_valid_ether_addr(smac)) {
			mlx5_core_warn(esw->dev,
				       "vport[%d] configure ingress rules failed, illegal mac with spoofchk\n",
				       vport->vport);
			return -EPERM;
		}
	}

1315
1316
	esw_vport_cleanup_ingress_rules(esw, vport);

1317
1318
	if (!vport->vlan && !vport->qos && !vport->spoofchk) {
		esw_vport_disable_ingress_acl(esw, vport);
1319
		return 0;
1320
1321
1322
	}

	esw_vport_enable_ingress_acl(esw, vport);
1323
1324
1325
1326
1327

	esw_debug(esw->dev,
		  "vport[%d] configure ingress rules, vlan(%d) qos(%d)\n",
		  vport->vport, vport->vlan, vport->qos);

1328
1329
	spec = mlx5_vzalloc(sizeof(*spec));
	if (!spec) {
1330
1331
1332
1333
1334
1335
		err = -ENOMEM;
		esw_warn(esw->dev, "vport[%d] configure ingress rules failed, err(%d)\n",
			 vport->vport, err);
		goto out;
	}

1336
	if (vport->vlan || vport->qos)
1337
		MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria, outer_headers.vlan_tag);
1338
1339

	if (vport->spoofchk) {
1340
1341
		MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria, outer_headers.smac_47_16);
		MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria, outer_headers.smac_15_0);
1342
		smac_v = MLX5_ADDR_OF(fte_match_param,
1343
				      spec->match_value,
1344
1345
1346
1347
				      outer_headers.smac_47_16);
		ether_addr_copy(smac_v, smac);
	}

1348
	spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS;
1349
	vport->ingress.allow_rule =
1350
		mlx5_add_flow_rule(vport->ingress.acl, spec,
1351
1352
				   MLX5_FLOW_CONTEXT_ACTION_ALLOW,
				   0, NULL);
1353
	if (IS_ERR(vport->ingress.allow_rule)) {
1354
1355
1356
1357
1358
1359
1360
		err = PTR_ERR(vport->ingress.allow_rule);
		pr_warn("vport[%d] configure ingress allow rule, err(%d)\n",
			vport->vport, err);
		vport->ingress.allow_rule = NULL;
		goto out;
	}

1361
	memset(spec, 0, sizeof(*spec));
1362
	vport->ingress.drop_rule =
1363
		mlx5_add_flow_rule(vport->ingress.acl, spec,
1364
1365
				   MLX5_FLOW_CONTEXT_ACTION_DROP,
				   0, NULL);
1366
	if (IS_ERR(vport->ingress.drop_rule)) {
1367
		err = PTR_ERR(vport->ingress.drop_rule);
1368
		pr_warn("vport[%d] configure ingress drop rule, err(%d)\n",
1369
1370
			vport->vport, err);
		vport->ingress.drop_rule = NULL;
1371
		goto out;
1372
	}
1373

1374
out:
1375
1376
	if (err)
		esw_vport_cleanup_ingress_rules(esw, vport);
1377
	kvfree(spec);
1378
1379
1380
1381
1382
1383
	return err;
}

static int esw_vport_egress_config(struct mlx5_eswitch *esw,
				   struct mlx5_vport *vport)
{
1384
	struct mlx5_flow_spec *spec;
1385
1386
1387
1388
	int err = 0;

	esw_vport_cleanup_egress_rules(esw, vport);

1389
1390
	if (!vport->vlan && !vport->qos) {
		esw_vport_disable_egress_acl(esw, vport);
1391
		return 0;
1392
1393
1394
	}

	esw_vport_enable_egress_acl(esw, vport);
1395
1396
1397
1398
1399

	esw_debug(esw->dev,
		  "vport[%d] configure egress rules, vlan(%d) qos(%d)\n",
		  vport->vport, vport->vlan, vport->qos);

1400
1401
	spec = mlx5_vzalloc(sizeof(*spec));
	if (!spec) {
1402
1403
1404
1405
1406
1407
1408
		err = -ENOMEM;
		esw_warn(esw->dev, "vport[%d] configure egress rules failed, err(%d)\n",
			 vport->vport, err);
		goto out;
	}

	/* Allowed vlan rule */
1409
1410
1411
1412
	MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria, outer_headers.vlan_tag);
	MLX5_SET_TO_ONES(fte_match_param, spec->match_value, outer_headers.vlan_tag);
	MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria, outer_headers.first_vid);
	MLX5_SET(fte_match_param, spec->match_value, outer_headers.first_vid, vport->vlan);
1413

1414
	spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS;
1415
	vport->egress.allowed_vlan =
1416
		mlx5_add_flow_rule(vport->egress.acl, spec,
1417
1418
				   MLX5_FLOW_CONTEXT_ACTION_ALLOW,
				   0, NULL);
1419
	if (IS_ERR(vport->egress.allowed_vlan)) {