summaryrefslogtreecommitdiffstats
path: root/drivers/net/bonding/rte_eth_bond_8023ad.h
blob: 2874336d381056ccd84e167681570643c69f312c (plain)
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
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
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
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
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
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
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
/*-
 *   BSD LICENSE
 *
 *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
 *   All rights reserved.
 *
 *   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.
 *     * Neither the name of Intel Corporation nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef RTE_ETH_BOND_8023AD_H_
#define RTE_ETH_BOND_8023AD_H_

#include <rte_ether.h>

#ifdef __cplusplus
extern "C" {
#endif

/**
 * Actor/partner states
 */
#define STATE_LACP_ACTIVE                   0x01
#define STATE_LACP_SHORT_TIMEOUT            0x02
#define STATE_AGGREGATION                   0x04
#define STATE_SYNCHRONIZATION               0x08
#define STATE_COLLECTING                    0x10
#define STATE_DISTRIBUTING                  0x20
/** Partners parameters are defaulted */
#define STATE_DEFAULTED                     0x40
#define STATE_EXPIRED                       0x80

#define TLV_TYPE_ACTOR_INFORMATION          0x01
#define TLV_TYPE_PARTNER_INFORMATION        0x02
#define TLV_TYPE_COLLECTOR_INFORMATION      0x03
#define TLV_TYPE_TERMINATOR_INFORMATION     0x00

#define SLOW_SUBTYPE_LACP                   0x01
#define SLOW_SUBTYPE_MARKER                 0x02

#define MARKER_TLV_TYPE_INFO                0x01
#define MARKER_TLV_TYPE_RESP                0x02

typedef void (*rte_eth_bond_8023ad_ext_slowrx_fn)(uint16_t slave_id,
						  struct rte_mbuf *lacp_pkt);

enum rte_bond_8023ad_selection {
	UNSELECTED,
	STANDBY,
	SELECTED
};

enum rte_bond_8023ad_agg_selection {
	AGG_BANDWIDTH,
	AGG_COUNT,
	AGG_STABLE
};

/** Generic slow protocol structure */
struct slow_protocol {
	uint8_t subtype;
	uint8_t reserved_119[119];
} __attribute__((__packed__));

/** Generic slow protocol frame type structure */
struct slow_protocol_frame {
	struct ether_hdr eth_hdr;
	struct slow_protocol slow_protocol;
} __attribute__((__packed__));

struct port_params {
	uint16_t system_priority;
	/**< System priority (unused in current implementation) */
	struct ether_addr system;
	/**< System ID - Slave MAC address, same as bonding MAC address */
	uint16_t key;
	/**< Speed information (implementation dependednt) and duplex. */
	uint16_t port_priority;
	/**< Priority of this (unused in current implementation) */
	uint16_t port_number;
	/**< Port number. It corresponds to slave port id. */
} __attribute__((__packed__));

struct lacpdu_actor_partner_params {
	uint8_t tlv_type_info;
	uint8_t info_length;
	struct port_params port_params;
	uint8_t state;
	uint8_t reserved_3[3];
} __attribute__((__packed__));

/** LACPDU structure (5.4.2 in 802.1AX documentation). */
struct lacpdu {
	uint8_t subtype;
	uint8_t version_number;

	struct lacpdu_actor_partner_params actor;
	struct lacpdu_actor_partner_params partner;

	uint8_t tlv_type_collector_info;
	uint8_t collector_info_length;
	uint16_t collector_max_delay;
	uint8_t reserved_12[12];

	uint8_t tlv_type_terminator;
	uint8_t terminator_length;
	uint8_t reserved_50[50];
} __attribute__((__packed__));

/** LACPDU frame: Contains ethernet header and LACPDU. */
struct lacpdu_header {
	struct ether_hdr eth_hdr;
	struct lacpdu lacpdu;
} __attribute__((__packed__));

struct marker {
	uint8_t subtype;
	uint8_t version_number;

	uint8_t tlv_type_marker;
	uint8_t info_length;
	uint16_t requester_port;
	struct ether_addr requester_system;
	uint32_t requester_transaction_id;
	uint8_t reserved_2[2];

	uint8_t tlv_type_terminator;
	uint8_t terminator_length;
	uint8_t reserved_90[90];
} __attribute__((__packed__));

struct marker_header {
	struct ether_hdr eth_hdr;
	struct marker marker;
} __attribute__((__packed__));

struct rte_eth_bond_8023ad_conf {
	uint32_t fast_periodic_ms;
	uint32_t slow_periodic_ms;
	uint32_t short_timeout_ms;
	uint32_t long_timeout_ms;
	uint32_t aggregate_wait_timeout_ms;
	uint32_t tx_period_ms;
	uint32_t rx_marker_period_ms;
	uint32_t update_timeout_ms;
	rte_eth_bond_8023ad_ext_slowrx_fn slowrx_cb;
	enum rte_bond_8023ad_agg_selection agg_selection;
};

struct rte_eth_bond_8023ad_slave_info {
	enum rte_bond_8023ad_selection selected;
	uint8_t actor_state;
	struct port_params actor;
	uint8_t partner_state;
	struct port_params partner;
	uint16_t agg_port_id;
};

/**
 * @internal
 *
 * Function returns current configuration of 802.3AX mode.
 *
 * @param port_id   Bonding device id
 * @param conf		Pointer to timeout structure.
 *
 * @return
 *   0 - if ok
 *   -EINVAL if conf is NULL
 */
int
rte_eth_bond_8023ad_conf_get(uint16_t port_id,
		struct rte_eth_bond_8023ad_conf *conf);

/**
 * @internal
 *
 * Function set new configuration of 802.3AX mode.
 *
 * @param port_id   Bonding device id
 * @param conf		Configuration, if NULL set default configuration.
 * @return
 *   0 - if ok
 *   -EINVAL if configuration is invalid.
 */
int
rte_eth_bond_8023ad_setup(uint16_t port_id,
		struct rte_eth_bond_8023ad_conf *conf);

/**
 * @internal
 *
 * Function returns current state of given slave device.
 *
 * @param slave_id  Port id of valid slave.
 * @param conf		buffer for configuration
 * @return
 *   0 - if ok
 *   -EINVAL if conf is NULL or slave id is invalid (not a slave of given
 *       bonded device or is not inactive).
 */
int
rte_eth_bond_8023ad_slave_info(uint16_t port_id, uint16_t slave_id,
		struct rte_eth_bond_8023ad_slave_info *conf);

#ifdef __cplusplus
}
#endif

/**
 * Configure a slave port to start collecting.
 *
 * @param port_id	Bonding device id
 * @param slave_id	Port id of valid slave.
 * @param enabled	Non-zero when collection enabled.
 * @return
 *   0 - if ok
 *   -EINVAL if slave is not valid.
 */
int
rte_eth_bond_8023ad_ext_collect(uint16_t port_id, uint16_t slave_id,
				int enabled);

/**
 * Get COLLECTING flag from slave port actor state.
 *
 * @param port_id	Bonding device id
 * @param slave_id	Port id of valid slave.
 * @return
 *   0 - if not set
 *   1 - if set
 *   -EINVAL if slave is not valid.
 */
int
rte_eth_bond_8023ad_ext_collect_get(uint16_t port_id, uint16_t slave_id);

/**
 * Configure a slave port to start distributing.
 *
 * @param port_id	Bonding device id
 * @param slave_id	Port id of valid slave.
 * @param enabled	Non-zero when distribution enabled.
 * @return
 *   0 - if ok
 *   -EINVAL if slave is not valid.
 */
int
rte_eth_bond_8023ad_ext_distrib(uint16_t port_id, uint16_t slave_id,
				int enabled);

/**
 * Get DISTRIBUTING flag from slave port actor state.
 *
 * @param port_id	Bonding device id
 * @param slave_id	Port id of valid slave.
 * @return
 *   0 - if not set
 *   1 - if set
 *   -EINVAL if slave is not valid.
 */
int
rte_eth_bond_8023ad_ext_distrib_get(uint16_t port_id, uint16_t slave_id);

/**
 * LACPDU transmit path for external 802.3ad state machine.  Caller retains
 * ownership of the packet on failure.
 *
 * @param port_id	Bonding device id
 * @param slave_id	Port ID of valid slave device.
 * @param lacp_pkt	mbuf containing LACPDU.
 *
 * @return
 *   0 on success, negative value otherwise.
 */
int
rte_eth_bond_8023ad_ext_slowtx(uint16_t port_id, uint16_t slave_id,
		struct rte_mbuf *lacp_pkt);

/**
 * Enable dedicated hw queues for 802.3ad control plane traffic on on slaves
 *
 * This function creates an additional tx and rx queue on each slave for
 * dedicated 802.3ad control plane traffic . A flow filtering rule is
 * programmed on each slave to redirect all LACP slow packets to that rx queue
 * for processing in the LACP state machine, this removes the need to filter
 * these packets in the bonded devices data path. The additional tx queue is
 * used to enable the LACP state machine to enqueue LACP packets directly to
 * slave hw independently of the bonded devices data path.
 *
 * To use this feature all slaves must support the programming of the flow
 * filter rule required for rx and have enough queues that one rx and tx queue
 * can be reserved for the LACP state machines control packets.
 *
 * Bonding port must be stopped to change this configuration.
 *
 * @param port_id      Bonding device id
 *
 * @return
 *   0 on success, negative value otherwise.
 */
int
rte_eth_bond_8023ad_dedicated_queues_enable(uint16_t port_id);

/**
 * Disable slow queue on slaves
 *
 * This function disables hardware slow packet filter.
 *
 * Bonding port must be stopped to change this configuration.
 *
 * @see rte_eth_bond_8023ad_slow_pkt_hw_filter_enable
 *
 * @param port_id      Bonding device id
 * @return
 *   0 on success, negative value otherwise.
 *
 */
int
rte_eth_bond_8023ad_dedicated_queues_disable(uint16_t port_id);

/*
 * Get aggregator mode for 8023ad
 * @param port_id Bonding device id
 *
 * @return
 *   agregator mode on success, negative value otherwise
 */
int
rte_eth_bond_8023ad_agg_selection_get(uint16_t port_id);

/**
 * Set aggregator mode for 8023ad
 * @param port_id Bonding device id
 * @return
 *   0 on success, negative value otherwise
 */
int
rte_eth_bond_8023ad_agg_selection_set(uint16_t port_id,
		enum rte_bond_8023ad_agg_selection agg_selection);
#endif /* RTE_ETH_BOND_8023AD_H_ */