Commit | Line | Data |
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9e567af4 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
1da177e4 LT |
2 | /* |
3 | * Copyright(c) 1999 - 2004 Intel Corporation. All rights reserved. | |
1da177e4 LT |
4 | */ |
5 | ||
1ef8019b DM |
6 | #ifndef _NET_BOND_3AD_H |
7 | #define _NET_BOND_3AD_H | |
1da177e4 LT |
8 | |
9 | #include <asm/byteorder.h> | |
10 | #include <linux/skbuff.h> | |
11 | #include <linux/netdevice.h> | |
ed9b58bc | 12 | #include <linux/if_ether.h> |
1da177e4 | 13 | |
2ea24f2e | 14 | /* General definitions */ |
ed9b58bc | 15 | #define PKT_TYPE_LACPDU cpu_to_be16(ETH_P_SLOW) |
1da177e4 LT |
16 | #define AD_TIMER_INTERVAL 100 /*msec*/ |
17 | ||
1da177e4 LT |
18 | #define AD_LACP_SLOW 0 |
19 | #define AD_LACP_FAST 1 | |
20 | ||
21 | typedef struct mac_addr { | |
22 | u8 mac_addr_value[ETH_ALEN]; | |
a10e1466 | 23 | } __packed mac_addr_t; |
1da177e4 | 24 | |
fd989c83 JV |
25 | enum { |
26 | BOND_AD_STABLE = 0, | |
27 | BOND_AD_BANDWIDTH = 1, | |
28 | BOND_AD_COUNT = 2, | |
29 | }; | |
1da177e4 | 30 | |
2ea24f2e | 31 | /* rx machine states(43.4.11 in the 802.3ad standard) */ |
1da177e4 LT |
32 | typedef enum { |
33 | AD_RX_DUMMY, | |
2ea24f2e JP |
34 | AD_RX_INITIALIZE, /* rx Machine */ |
35 | AD_RX_PORT_DISABLED, /* rx Machine */ | |
36 | AD_RX_LACP_DISABLED, /* rx Machine */ | |
37 | AD_RX_EXPIRED, /* rx Machine */ | |
38 | AD_RX_DEFAULTED, /* rx Machine */ | |
39 | AD_RX_CURRENT /* rx Machine */ | |
1da177e4 LT |
40 | } rx_states_t; |
41 | ||
2ea24f2e | 42 | /* periodic machine states(43.4.12 in the 802.3ad standard) */ |
1da177e4 LT |
43 | typedef enum { |
44 | AD_PERIODIC_DUMMY, | |
2ea24f2e JP |
45 | AD_NO_PERIODIC, /* periodic machine */ |
46 | AD_FAST_PERIODIC, /* periodic machine */ | |
47 | AD_SLOW_PERIODIC, /* periodic machine */ | |
48 | AD_PERIODIC_TX /* periodic machine */ | |
1da177e4 LT |
49 | } periodic_states_t; |
50 | ||
2ea24f2e | 51 | /* mux machine states(43.4.13 in the 802.3ad standard) */ |
1da177e4 LT |
52 | typedef enum { |
53 | AD_MUX_DUMMY, | |
2ea24f2e JP |
54 | AD_MUX_DETACHED, /* mux machine */ |
55 | AD_MUX_WAITING, /* mux machine */ | |
56 | AD_MUX_ATTACHED, /* mux machine */ | |
57 | AD_MUX_COLLECTING_DISTRIBUTING /* mux machine */ | |
1da177e4 LT |
58 | } mux_states_t; |
59 | ||
2ea24f2e | 60 | /* tx machine states(43.4.15 in the 802.3ad standard) */ |
1da177e4 LT |
61 | typedef enum { |
62 | AD_TX_DUMMY, | |
2ea24f2e | 63 | AD_TRANSMIT /* tx Machine */ |
1da177e4 LT |
64 | } tx_states_t; |
65 | ||
14c9551a MB |
66 | /* churn machine states(43.4.17 in the 802.3ad standard) */ |
67 | typedef enum { | |
68 | AD_CHURN_MONITOR, /* monitoring for churn */ | |
69 | AD_CHURN, /* churn detected (error) */ | |
70 | AD_NO_CHURN /* no churn (no error) */ | |
71 | } churn_state_t; | |
72 | ||
2ea24f2e | 73 | /* rx indication types */ |
1da177e4 | 74 | typedef enum { |
2ea24f2e JP |
75 | AD_TYPE_LACPDU = 1, /* type lacpdu */ |
76 | AD_TYPE_MARKER /* type marker */ | |
1da177e4 LT |
77 | } pdu_type_t; |
78 | ||
2ea24f2e | 79 | /* rx marker indication types */ |
1da177e4 | 80 | typedef enum { |
2ea24f2e JP |
81 | AD_MARKER_INFORMATION_SUBTYPE = 1, /* marker imformation subtype */ |
82 | AD_MARKER_RESPONSE_SUBTYPE /* marker response subtype */ | |
1c3f0b8e | 83 | } bond_marker_subtype_t; |
1da177e4 | 84 | |
2ea24f2e | 85 | /* timers types(43.4.9 in the 802.3ad standard) */ |
1da177e4 LT |
86 | typedef enum { |
87 | AD_CURRENT_WHILE_TIMER, | |
88 | AD_ACTOR_CHURN_TIMER, | |
89 | AD_PERIODIC_TIMER, | |
90 | AD_PARTNER_CHURN_TIMER, | |
91 | AD_WAIT_WHILE_TIMER | |
92 | } ad_timers_t; | |
93 | ||
94 | #pragma pack(1) | |
95 | ||
2ea24f2e | 96 | /* Link Aggregation Control Protocol(LACP) data unit structure(43.4.2.2 in the 802.3ad standard) */ |
1da177e4 | 97 | typedef struct lacpdu { |
2ea24f2e | 98 | u8 subtype; /* = LACP(= 0x01) */ |
1da177e4 | 99 | u8 version_number; |
2ea24f2e JP |
100 | u8 tlv_type_actor_info; /* = actor information(type/length/value) */ |
101 | u8 actor_information_length; /* = 20 */ | |
d3bb52b0 | 102 | __be16 actor_system_priority; |
1da177e4 | 103 | struct mac_addr actor_system; |
d3bb52b0 AV |
104 | __be16 actor_key; |
105 | __be16 actor_port_priority; | |
106 | __be16 actor_port; | |
1da177e4 | 107 | u8 actor_state; |
2ea24f2e JP |
108 | u8 reserved_3_1[3]; /* = 0 */ |
109 | u8 tlv_type_partner_info; /* = partner information */ | |
110 | u8 partner_information_length; /* = 20 */ | |
d3bb52b0 | 111 | __be16 partner_system_priority; |
1da177e4 | 112 | struct mac_addr partner_system; |
d3bb52b0 AV |
113 | __be16 partner_key; |
114 | __be16 partner_port_priority; | |
115 | __be16 partner_port; | |
1da177e4 | 116 | u8 partner_state; |
2ea24f2e JP |
117 | u8 reserved_3_2[3]; /* = 0 */ |
118 | u8 tlv_type_collector_info; /* = collector information */ | |
119 | u8 collector_information_length;/* = 16 */ | |
d3bb52b0 | 120 | __be16 collector_max_delay; |
1da177e4 | 121 | u8 reserved_12[12]; |
2ea24f2e JP |
122 | u8 tlv_type_terminator; /* = terminator */ |
123 | u8 terminator_length; /* = 0 */ | |
124 | u8 reserved_50[50]; /* = 0 */ | |
a10e1466 | 125 | } __packed lacpdu_t; |
1da177e4 LT |
126 | |
127 | typedef struct lacpdu_header { | |
e727149e | 128 | struct ethhdr hdr; |
1da177e4 | 129 | struct lacpdu lacpdu; |
a10e1466 | 130 | } __packed lacpdu_header_t; |
1da177e4 | 131 | |
2ea24f2e | 132 | /* Marker Protocol Data Unit(PDU) structure(43.5.3.2 in the 802.3ad standard) */ |
1c3f0b8e | 133 | typedef struct bond_marker { |
2ea24f2e JP |
134 | u8 subtype; /* = 0x02 (marker PDU) */ |
135 | u8 version_number; /* = 0x01 */ | |
136 | u8 tlv_type; /* = 0x01 (marker information) */ | |
137 | /* = 0x02 (marker response information) */ | |
138 | u8 marker_length; /* = 0x16 */ | |
139 | u16 requester_port; /* The number assigned to the port by the requester */ | |
140 | struct mac_addr requester_system; /* The requester's system id */ | |
141 | u32 requester_transaction_id; /* The transaction id allocated by the requester, */ | |
142 | u16 pad; /* = 0 */ | |
143 | u8 tlv_type_terminator; /* = 0x00 */ | |
144 | u8 terminator_length; /* = 0x00 */ | |
145 | u8 reserved_90[90]; /* = 0 */ | |
a10e1466 | 146 | } __packed bond_marker_t; |
1da177e4 | 147 | |
1c3f0b8e | 148 | typedef struct bond_marker_header { |
e727149e | 149 | struct ethhdr hdr; |
1c3f0b8e | 150 | struct bond_marker marker; |
a10e1466 | 151 | } __packed bond_marker_header_t; |
1da177e4 LT |
152 | |
153 | #pragma pack() | |
154 | ||
155 | struct slave; | |
156 | struct bonding; | |
157 | struct ad_info; | |
158 | struct port; | |
159 | ||
160 | #ifdef __ia64__ | |
161 | #pragma pack(8) | |
162 | #endif | |
163 | ||
267c095a NA |
164 | struct bond_3ad_stats { |
165 | atomic64_t lacpdu_rx; | |
166 | atomic64_t lacpdu_tx; | |
167 | atomic64_t lacpdu_unknown_rx; | |
168 | atomic64_t lacpdu_illegal_rx; | |
169 | ||
170 | atomic64_t marker_rx; | |
171 | atomic64_t marker_tx; | |
172 | atomic64_t marker_resp_rx; | |
173 | atomic64_t marker_resp_tx; | |
174 | atomic64_t marker_unknown_rx; | |
175 | }; | |
176 | ||
2ea24f2e | 177 | /* aggregator structure(43.4.5 in the 802.3ad standard) */ |
1da177e4 LT |
178 | typedef struct aggregator { |
179 | struct mac_addr aggregator_mac_address; | |
180 | u16 aggregator_identifier; | |
1624db7b | 181 | bool is_individual; |
1da177e4 LT |
182 | u16 actor_admin_aggregator_key; |
183 | u16 actor_oper_aggregator_key; | |
184 | struct mac_addr partner_system; | |
185 | u16 partner_system_priority; | |
186 | u16 partner_oper_aggregator_key; | |
2ea24f2e JP |
187 | u16 receive_state; /* BOOLEAN */ |
188 | u16 transmit_state; /* BOOLEAN */ | |
1da177e4 | 189 | struct port *lag_ports; |
2ea24f2e JP |
190 | /* ****** PRIVATE PARAMETERS ****** */ |
191 | struct slave *slave; /* pointer to the bond slave that this aggregator belongs to */ | |
192 | u16 is_active; /* BOOLEAN. Indicates if this aggregator is active */ | |
1da177e4 LT |
193 | u16 num_of_ports; |
194 | } aggregator_t; | |
195 | ||
1055c9ab HE |
196 | struct port_params { |
197 | struct mac_addr system; | |
198 | u16 system_priority; | |
199 | u16 key; | |
200 | u16 port_number; | |
201 | u16 port_priority; | |
202 | u16 port_state; | |
203 | }; | |
204 | ||
2ea24f2e | 205 | /* port structure(43.4.6 in the 802.3ad standard) */ |
1da177e4 LT |
206 | typedef struct port { |
207 | u16 actor_port_number; | |
208 | u16 actor_port_priority; | |
2ea24f2e JP |
209 | struct mac_addr actor_system; /* This parameter is added here although it is not specified in the standard, just for simplification */ |
210 | u16 actor_system_priority; /* This parameter is added here although it is not specified in the standard, just for simplification */ | |
1da177e4 | 211 | u16 actor_port_aggregator_identifier; |
d238d458 | 212 | bool ntt; |
1da177e4 LT |
213 | u16 actor_admin_port_key; |
214 | u16 actor_oper_port_key; | |
215 | u8 actor_admin_port_state; | |
216 | u8 actor_oper_port_state; | |
1055c9ab HE |
217 | |
218 | struct port_params partner_admin; | |
219 | struct port_params partner_oper; | |
220 | ||
f48127b6 HE |
221 | bool is_enabled; |
222 | ||
2ea24f2e JP |
223 | /* ****** PRIVATE PARAMETERS ****** */ |
224 | u16 sm_vars; /* all state machines variables for this port */ | |
225 | rx_states_t sm_rx_state; /* state machine rx state */ | |
226 | u16 sm_rx_timer_counter; /* state machine rx timer counter */ | |
227 | periodic_states_t sm_periodic_state; /* state machine periodic state */ | |
228 | u16 sm_periodic_timer_counter; /* state machine periodic timer counter */ | |
229 | mux_states_t sm_mux_state; /* state machine mux state */ | |
230 | u16 sm_mux_timer_counter; /* state machine mux timer counter */ | |
231 | tx_states_t sm_tx_state; /* state machine tx state */ | |
232 | u16 sm_tx_timer_counter; /* state machine tx timer counter(allways on - enter to transmit state 3 time per second) */ | |
14c9551a MB |
233 | u16 sm_churn_actor_timer_counter; |
234 | u16 sm_churn_partner_timer_counter; | |
235 | u32 churn_actor_count; | |
236 | u32 churn_partner_count; | |
237 | churn_state_t sm_churn_actor_state; | |
238 | churn_state_t sm_churn_partner_state; | |
2ea24f2e JP |
239 | struct slave *slave; /* pointer to the bond slave that this port belongs to */ |
240 | struct aggregator *aggregator; /* pointer to an aggregator that this port related to */ | |
241 | struct port *next_port_in_aggregator; /* Next port on the linked list of the parent aggregator */ | |
242 | u32 transaction_id; /* continuous number for identification of Marker PDU's; */ | |
243 | struct lacpdu lacpdu; /* the lacpdu that will be sent for this port */ | |
1da177e4 LT |
244 | } port_t; |
245 | ||
2ea24f2e | 246 | /* system structure */ |
87f422f8 | 247 | struct ad_system { |
1da177e4 LT |
248 | u16 sys_priority; |
249 | struct mac_addr sys_mac_addr; | |
87f422f8 | 250 | }; |
1da177e4 LT |
251 | |
252 | #ifdef __ia64__ | |
253 | #pragma pack() | |
254 | #endif | |
255 | ||
2ea24f2e | 256 | /* ========== AD Exported structures to the main bonding code ========== */ |
1da177e4 LT |
257 | #define BOND_AD_INFO(bond) ((bond)->ad_info) |
258 | #define SLAVE_AD_INFO(slave) ((slave)->ad_info) | |
259 | ||
260 | struct ad_bond_info { | |
2ea24f2e | 261 | struct ad_system system; /* 802.3ad system structure */ |
949e7cea | 262 | struct bond_3ad_stats stats; |
9ceaf6f7 | 263 | atomic_t agg_select_timer; /* Timer to select aggregator after all adapter's hand shakes */ |
163c8ff3 | 264 | u16 aggregator_identifier; |
1da177e4 LT |
265 | }; |
266 | ||
267 | struct ad_slave_info { | |
2ea24f2e JP |
268 | struct aggregator aggregator; /* 802.3ad aggregator structure */ |
269 | struct port port; /* 802.3ad port structure */ | |
267c095a | 270 | struct bond_3ad_stats stats; |
1da177e4 LT |
271 | u16 id; |
272 | }; | |
273 | ||
14c9551a MB |
274 | static inline const char *bond_3ad_churn_desc(churn_state_t state) |
275 | { | |
276 | static const char *const churn_description[] = { | |
277 | "monitoring", | |
278 | "churned", | |
279 | "none", | |
280 | "unknown" | |
281 | }; | |
31ba191b | 282 | int max_size = ARRAY_SIZE(churn_description); |
14c9551a MB |
283 | |
284 | if (state >= max_size) | |
285 | state = max_size - 1; | |
286 | ||
287 | return churn_description[state]; | |
288 | } | |
289 | ||
2ea24f2e | 290 | /* ========== AD Exported functions to the main bonding code ========== */ |
f2e44dff | 291 | void bond_3ad_initialize(struct bonding *bond); |
2ea24f2e | 292 | void bond_3ad_bind_slave(struct slave *slave); |
1da177e4 | 293 | void bond_3ad_unbind_slave(struct slave *slave); |
1b76b316 | 294 | void bond_3ad_state_machine_handler(struct work_struct *); |
fd989c83 | 295 | void bond_3ad_initiate_agg_selection(struct bonding *bond, int timeout); |
52bc6716 | 296 | void bond_3ad_adapter_speed_duplex_changed(struct slave *slave); |
1da177e4 LT |
297 | void bond_3ad_handle_link_change(struct slave *slave, char link); |
298 | int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info); | |
318debd8 | 299 | int __bond_3ad_get_active_agg_info(struct bonding *bond, |
300 | struct ad_info *ad_info); | |
de063b70 ED |
301 | int bond_3ad_lacpdu_recv(const struct sk_buff *skb, struct bonding *bond, |
302 | struct slave *slave); | |
ff59c456 | 303 | int bond_3ad_set_carrier(struct bonding *bond); |
3a755cd8 | 304 | void bond_3ad_update_lacp_active(struct bonding *bond); |
ba824a8b | 305 | void bond_3ad_update_lacp_rate(struct bonding *bond); |
5ee14e6d | 306 | void bond_3ad_update_ad_actor_settings(struct bonding *bond); |
a258aeac NA |
307 | int bond_3ad_stats_fill(struct sk_buff *skb, struct bond_3ad_stats *stats); |
308 | size_t bond_3ad_stats_size(void); | |
1ef8019b | 309 | #endif /* _NET_BOND_3AD_H */ |
1da177e4 | 310 |