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1da177e4 LT |
1 | /* |
2 | * Copyright(c) 1999 - 2004 Intel Corporation. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License as published by the Free | |
6 | * Software Foundation; either version 2 of the License, or (at your option) | |
7 | * any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along with | |
15 | * this program; if not, write to the Free Software Foundation, Inc., 59 | |
16 | * Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
17 | * | |
18 | * The full GNU General Public License is included in this distribution in the | |
19 | * file called LICENSE. | |
20 | * | |
1da177e4 LT |
21 | */ |
22 | ||
1ef8019b DM |
23 | #ifndef _NET_BOND_3AD_H |
24 | #define _NET_BOND_3AD_H | |
1da177e4 LT |
25 | |
26 | #include <asm/byteorder.h> | |
27 | #include <linux/skbuff.h> | |
28 | #include <linux/netdevice.h> | |
ed9b58bc | 29 | #include <linux/if_ether.h> |
1da177e4 | 30 | |
2ea24f2e | 31 | /* General definitions */ |
ed9b58bc | 32 | #define PKT_TYPE_LACPDU cpu_to_be16(ETH_P_SLOW) |
1da177e4 LT |
33 | #define AD_TIMER_INTERVAL 100 /*msec*/ |
34 | ||
35 | #define MULTICAST_LACPDU_ADDR {0x01, 0x80, 0xC2, 0x00, 0x00, 0x02} | |
1da177e4 LT |
36 | |
37 | #define AD_LACP_SLOW 0 | |
38 | #define AD_LACP_FAST 1 | |
39 | ||
40 | typedef struct mac_addr { | |
41 | u8 mac_addr_value[ETH_ALEN]; | |
a10e1466 | 42 | } __packed mac_addr_t; |
1da177e4 | 43 | |
fd989c83 JV |
44 | enum { |
45 | BOND_AD_STABLE = 0, | |
46 | BOND_AD_BANDWIDTH = 1, | |
47 | BOND_AD_COUNT = 2, | |
48 | }; | |
1da177e4 | 49 | |
2ea24f2e | 50 | /* rx machine states(43.4.11 in the 802.3ad standard) */ |
1da177e4 LT |
51 | typedef enum { |
52 | AD_RX_DUMMY, | |
2ea24f2e JP |
53 | AD_RX_INITIALIZE, /* rx Machine */ |
54 | AD_RX_PORT_DISABLED, /* rx Machine */ | |
55 | AD_RX_LACP_DISABLED, /* rx Machine */ | |
56 | AD_RX_EXPIRED, /* rx Machine */ | |
57 | AD_RX_DEFAULTED, /* rx Machine */ | |
58 | AD_RX_CURRENT /* rx Machine */ | |
1da177e4 LT |
59 | } rx_states_t; |
60 | ||
2ea24f2e | 61 | /* periodic machine states(43.4.12 in the 802.3ad standard) */ |
1da177e4 LT |
62 | typedef enum { |
63 | AD_PERIODIC_DUMMY, | |
2ea24f2e JP |
64 | AD_NO_PERIODIC, /* periodic machine */ |
65 | AD_FAST_PERIODIC, /* periodic machine */ | |
66 | AD_SLOW_PERIODIC, /* periodic machine */ | |
67 | AD_PERIODIC_TX /* periodic machine */ | |
1da177e4 LT |
68 | } periodic_states_t; |
69 | ||
2ea24f2e | 70 | /* mux machine states(43.4.13 in the 802.3ad standard) */ |
1da177e4 LT |
71 | typedef enum { |
72 | AD_MUX_DUMMY, | |
2ea24f2e JP |
73 | AD_MUX_DETACHED, /* mux machine */ |
74 | AD_MUX_WAITING, /* mux machine */ | |
75 | AD_MUX_ATTACHED, /* mux machine */ | |
76 | AD_MUX_COLLECTING_DISTRIBUTING /* mux machine */ | |
1da177e4 LT |
77 | } mux_states_t; |
78 | ||
2ea24f2e | 79 | /* tx machine states(43.4.15 in the 802.3ad standard) */ |
1da177e4 LT |
80 | typedef enum { |
81 | AD_TX_DUMMY, | |
2ea24f2e | 82 | AD_TRANSMIT /* tx Machine */ |
1da177e4 LT |
83 | } tx_states_t; |
84 | ||
14c9551a MB |
85 | /* churn machine states(43.4.17 in the 802.3ad standard) */ |
86 | typedef enum { | |
87 | AD_CHURN_MONITOR, /* monitoring for churn */ | |
88 | AD_CHURN, /* churn detected (error) */ | |
89 | AD_NO_CHURN /* no churn (no error) */ | |
90 | } churn_state_t; | |
91 | ||
2ea24f2e | 92 | /* rx indication types */ |
1da177e4 | 93 | typedef enum { |
2ea24f2e JP |
94 | AD_TYPE_LACPDU = 1, /* type lacpdu */ |
95 | AD_TYPE_MARKER /* type marker */ | |
1da177e4 LT |
96 | } pdu_type_t; |
97 | ||
2ea24f2e | 98 | /* rx marker indication types */ |
1da177e4 | 99 | typedef enum { |
2ea24f2e JP |
100 | AD_MARKER_INFORMATION_SUBTYPE = 1, /* marker imformation subtype */ |
101 | AD_MARKER_RESPONSE_SUBTYPE /* marker response subtype */ | |
1c3f0b8e | 102 | } bond_marker_subtype_t; |
1da177e4 | 103 | |
2ea24f2e | 104 | /* timers types(43.4.9 in the 802.3ad standard) */ |
1da177e4 LT |
105 | typedef enum { |
106 | AD_CURRENT_WHILE_TIMER, | |
107 | AD_ACTOR_CHURN_TIMER, | |
108 | AD_PERIODIC_TIMER, | |
109 | AD_PARTNER_CHURN_TIMER, | |
110 | AD_WAIT_WHILE_TIMER | |
111 | } ad_timers_t; | |
112 | ||
113 | #pragma pack(1) | |
114 | ||
2ea24f2e | 115 | /* Link Aggregation Control Protocol(LACP) data unit structure(43.4.2.2 in the 802.3ad standard) */ |
1da177e4 | 116 | typedef struct lacpdu { |
2ea24f2e | 117 | u8 subtype; /* = LACP(= 0x01) */ |
1da177e4 | 118 | u8 version_number; |
2ea24f2e JP |
119 | u8 tlv_type_actor_info; /* = actor information(type/length/value) */ |
120 | u8 actor_information_length; /* = 20 */ | |
d3bb52b0 | 121 | __be16 actor_system_priority; |
1da177e4 | 122 | struct mac_addr actor_system; |
d3bb52b0 AV |
123 | __be16 actor_key; |
124 | __be16 actor_port_priority; | |
125 | __be16 actor_port; | |
1da177e4 | 126 | u8 actor_state; |
2ea24f2e JP |
127 | u8 reserved_3_1[3]; /* = 0 */ |
128 | u8 tlv_type_partner_info; /* = partner information */ | |
129 | u8 partner_information_length; /* = 20 */ | |
d3bb52b0 | 130 | __be16 partner_system_priority; |
1da177e4 | 131 | struct mac_addr partner_system; |
d3bb52b0 AV |
132 | __be16 partner_key; |
133 | __be16 partner_port_priority; | |
134 | __be16 partner_port; | |
1da177e4 | 135 | u8 partner_state; |
2ea24f2e JP |
136 | u8 reserved_3_2[3]; /* = 0 */ |
137 | u8 tlv_type_collector_info; /* = collector information */ | |
138 | u8 collector_information_length;/* = 16 */ | |
d3bb52b0 | 139 | __be16 collector_max_delay; |
1da177e4 | 140 | u8 reserved_12[12]; |
2ea24f2e JP |
141 | u8 tlv_type_terminator; /* = terminator */ |
142 | u8 terminator_length; /* = 0 */ | |
143 | u8 reserved_50[50]; /* = 0 */ | |
a10e1466 | 144 | } __packed lacpdu_t; |
1da177e4 LT |
145 | |
146 | typedef struct lacpdu_header { | |
e727149e | 147 | struct ethhdr hdr; |
1da177e4 | 148 | struct lacpdu lacpdu; |
a10e1466 | 149 | } __packed lacpdu_header_t; |
1da177e4 | 150 | |
2ea24f2e | 151 | /* Marker Protocol Data Unit(PDU) structure(43.5.3.2 in the 802.3ad standard) */ |
1c3f0b8e | 152 | typedef struct bond_marker { |
2ea24f2e JP |
153 | u8 subtype; /* = 0x02 (marker PDU) */ |
154 | u8 version_number; /* = 0x01 */ | |
155 | u8 tlv_type; /* = 0x01 (marker information) */ | |
156 | /* = 0x02 (marker response information) */ | |
157 | u8 marker_length; /* = 0x16 */ | |
158 | u16 requester_port; /* The number assigned to the port by the requester */ | |
159 | struct mac_addr requester_system; /* The requester's system id */ | |
160 | u32 requester_transaction_id; /* The transaction id allocated by the requester, */ | |
161 | u16 pad; /* = 0 */ | |
162 | u8 tlv_type_terminator; /* = 0x00 */ | |
163 | u8 terminator_length; /* = 0x00 */ | |
164 | u8 reserved_90[90]; /* = 0 */ | |
a10e1466 | 165 | } __packed bond_marker_t; |
1da177e4 | 166 | |
1c3f0b8e | 167 | typedef struct bond_marker_header { |
e727149e | 168 | struct ethhdr hdr; |
1c3f0b8e | 169 | struct bond_marker marker; |
a10e1466 | 170 | } __packed bond_marker_header_t; |
1da177e4 LT |
171 | |
172 | #pragma pack() | |
173 | ||
174 | struct slave; | |
175 | struct bonding; | |
176 | struct ad_info; | |
177 | struct port; | |
178 | ||
179 | #ifdef __ia64__ | |
180 | #pragma pack(8) | |
181 | #endif | |
182 | ||
2ea24f2e | 183 | /* aggregator structure(43.4.5 in the 802.3ad standard) */ |
1da177e4 LT |
184 | typedef struct aggregator { |
185 | struct mac_addr aggregator_mac_address; | |
186 | u16 aggregator_identifier; | |
1624db7b | 187 | bool is_individual; |
1da177e4 LT |
188 | u16 actor_admin_aggregator_key; |
189 | u16 actor_oper_aggregator_key; | |
190 | struct mac_addr partner_system; | |
191 | u16 partner_system_priority; | |
192 | u16 partner_oper_aggregator_key; | |
2ea24f2e JP |
193 | u16 receive_state; /* BOOLEAN */ |
194 | u16 transmit_state; /* BOOLEAN */ | |
1da177e4 | 195 | struct port *lag_ports; |
2ea24f2e JP |
196 | /* ****** PRIVATE PARAMETERS ****** */ |
197 | struct slave *slave; /* pointer to the bond slave that this aggregator belongs to */ | |
198 | u16 is_active; /* BOOLEAN. Indicates if this aggregator is active */ | |
1da177e4 LT |
199 | u16 num_of_ports; |
200 | } aggregator_t; | |
201 | ||
1055c9ab HE |
202 | struct port_params { |
203 | struct mac_addr system; | |
204 | u16 system_priority; | |
205 | u16 key; | |
206 | u16 port_number; | |
207 | u16 port_priority; | |
208 | u16 port_state; | |
209 | }; | |
210 | ||
2ea24f2e | 211 | /* port structure(43.4.6 in the 802.3ad standard) */ |
1da177e4 LT |
212 | typedef struct port { |
213 | u16 actor_port_number; | |
214 | u16 actor_port_priority; | |
2ea24f2e JP |
215 | struct mac_addr actor_system; /* This parameter is added here although it is not specified in the standard, just for simplification */ |
216 | u16 actor_system_priority; /* This parameter is added here although it is not specified in the standard, just for simplification */ | |
1da177e4 | 217 | u16 actor_port_aggregator_identifier; |
d238d458 | 218 | bool ntt; |
1da177e4 LT |
219 | u16 actor_admin_port_key; |
220 | u16 actor_oper_port_key; | |
221 | u8 actor_admin_port_state; | |
222 | u8 actor_oper_port_state; | |
1055c9ab HE |
223 | |
224 | struct port_params partner_admin; | |
225 | struct port_params partner_oper; | |
226 | ||
f48127b6 HE |
227 | bool is_enabled; |
228 | ||
2ea24f2e JP |
229 | /* ****** PRIVATE PARAMETERS ****** */ |
230 | u16 sm_vars; /* all state machines variables for this port */ | |
231 | rx_states_t sm_rx_state; /* state machine rx state */ | |
232 | u16 sm_rx_timer_counter; /* state machine rx timer counter */ | |
233 | periodic_states_t sm_periodic_state; /* state machine periodic state */ | |
234 | u16 sm_periodic_timer_counter; /* state machine periodic timer counter */ | |
235 | mux_states_t sm_mux_state; /* state machine mux state */ | |
236 | u16 sm_mux_timer_counter; /* state machine mux timer counter */ | |
237 | tx_states_t sm_tx_state; /* state machine tx state */ | |
238 | u16 sm_tx_timer_counter; /* state machine tx timer counter(allways on - enter to transmit state 3 time per second) */ | |
14c9551a MB |
239 | u16 sm_churn_actor_timer_counter; |
240 | u16 sm_churn_partner_timer_counter; | |
241 | u32 churn_actor_count; | |
242 | u32 churn_partner_count; | |
243 | churn_state_t sm_churn_actor_state; | |
244 | churn_state_t sm_churn_partner_state; | |
2ea24f2e JP |
245 | struct slave *slave; /* pointer to the bond slave that this port belongs to */ |
246 | struct aggregator *aggregator; /* pointer to an aggregator that this port related to */ | |
247 | struct port *next_port_in_aggregator; /* Next port on the linked list of the parent aggregator */ | |
248 | u32 transaction_id; /* continuous number for identification of Marker PDU's; */ | |
249 | struct lacpdu lacpdu; /* the lacpdu that will be sent for this port */ | |
1da177e4 LT |
250 | } port_t; |
251 | ||
2ea24f2e | 252 | /* system structure */ |
87f422f8 | 253 | struct ad_system { |
1da177e4 LT |
254 | u16 sys_priority; |
255 | struct mac_addr sys_mac_addr; | |
87f422f8 | 256 | }; |
1da177e4 LT |
257 | |
258 | #ifdef __ia64__ | |
259 | #pragma pack() | |
260 | #endif | |
261 | ||
2ea24f2e | 262 | /* ========== AD Exported structures to the main bonding code ========== */ |
1da177e4 LT |
263 | #define BOND_AD_INFO(bond) ((bond)->ad_info) |
264 | #define SLAVE_AD_INFO(slave) ((slave)->ad_info) | |
265 | ||
266 | struct ad_bond_info { | |
2ea24f2e JP |
267 | struct ad_system system; /* 802.3ad system structure */ |
268 | u32 agg_select_timer; /* Timer to select aggregator after all adapter's hand shakes */ | |
163c8ff3 | 269 | u16 aggregator_identifier; |
1da177e4 LT |
270 | }; |
271 | ||
272 | struct ad_slave_info { | |
2ea24f2e JP |
273 | struct aggregator aggregator; /* 802.3ad aggregator structure */ |
274 | struct port port; /* 802.3ad port structure */ | |
1da177e4 LT |
275 | u16 id; |
276 | }; | |
277 | ||
14c9551a MB |
278 | static inline const char *bond_3ad_churn_desc(churn_state_t state) |
279 | { | |
280 | static const char *const churn_description[] = { | |
281 | "monitoring", | |
282 | "churned", | |
283 | "none", | |
284 | "unknown" | |
285 | }; | |
286 | int max_size = sizeof(churn_description) / sizeof(churn_description[0]); | |
287 | ||
288 | if (state >= max_size) | |
289 | state = max_size - 1; | |
290 | ||
291 | return churn_description[state]; | |
292 | } | |
293 | ||
2ea24f2e | 294 | /* ========== AD Exported functions to the main bonding code ========== */ |
56d00c67 | 295 | void bond_3ad_initialize(struct bonding *bond, u16 tick_resolution); |
2ea24f2e | 296 | void bond_3ad_bind_slave(struct slave *slave); |
1da177e4 | 297 | void bond_3ad_unbind_slave(struct slave *slave); |
1b76b316 | 298 | void bond_3ad_state_machine_handler(struct work_struct *); |
fd989c83 | 299 | void bond_3ad_initiate_agg_selection(struct bonding *bond, int timeout); |
52bc6716 | 300 | void bond_3ad_adapter_speed_duplex_changed(struct slave *slave); |
1da177e4 LT |
301 | void bond_3ad_handle_link_change(struct slave *slave, char link); |
302 | int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info); | |
318debd8 | 303 | int __bond_3ad_get_active_agg_info(struct bonding *bond, |
304 | struct ad_info *ad_info); | |
de063b70 ED |
305 | int bond_3ad_lacpdu_recv(const struct sk_buff *skb, struct bonding *bond, |
306 | struct slave *slave); | |
ff59c456 | 307 | int bond_3ad_set_carrier(struct bonding *bond); |
ba824a8b | 308 | void bond_3ad_update_lacp_rate(struct bonding *bond); |
1ef8019b | 309 | #endif /* _NET_BOND_3AD_H */ |
1da177e4 | 310 |