diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/net/bonding/bond_3ad.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/net/bonding/bond_3ad.h')
-rw-r--r-- | drivers/net/bonding/bond_3ad.h | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/drivers/net/bonding/bond_3ad.h b/drivers/net/bonding/bond_3ad.h new file mode 100644 index 000000000000..f46823894187 --- /dev/null +++ b/drivers/net/bonding/bond_3ad.h | |||
@@ -0,0 +1,300 @@ | |||
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 | * | ||
21 | * | ||
22 | * Changes: | ||
23 | * | ||
24 | * 2003/05/01 - Tsippy Mendelson <tsippy.mendelson at intel dot com> and | ||
25 | * Amir Noam <amir.noam at intel dot com> | ||
26 | * - Added support for lacp_rate module param. | ||
27 | * | ||
28 | * 2003/05/01 - Shmulik Hen <shmulik.hen at intel dot com> | ||
29 | * - Renamed bond_3ad_link_status_changed() to | ||
30 | * bond_3ad_handle_link_change() for compatibility with TLB. | ||
31 | * | ||
32 | * 2003/12/01 - Shmulik Hen <shmulik.hen at intel dot com> | ||
33 | * - Code cleanup and style changes | ||
34 | */ | ||
35 | |||
36 | #ifndef __BOND_3AD_H__ | ||
37 | #define __BOND_3AD_H__ | ||
38 | |||
39 | #include <asm/byteorder.h> | ||
40 | #include <linux/skbuff.h> | ||
41 | #include <linux/netdevice.h> | ||
42 | |||
43 | // General definitions | ||
44 | #define BOND_ETH_P_LACPDU 0x8809 | ||
45 | #define PKT_TYPE_LACPDU __constant_htons(BOND_ETH_P_LACPDU) | ||
46 | #define AD_TIMER_INTERVAL 100 /*msec*/ | ||
47 | |||
48 | #define MULTICAST_LACPDU_ADDR {0x01, 0x80, 0xC2, 0x00, 0x00, 0x02} | ||
49 | #define AD_MULTICAST_LACPDU_ADDR {MULTICAST_LACPDU_ADDR} | ||
50 | |||
51 | #define AD_LACP_SLOW 0 | ||
52 | #define AD_LACP_FAST 1 | ||
53 | |||
54 | typedef struct mac_addr { | ||
55 | u8 mac_addr_value[ETH_ALEN]; | ||
56 | } mac_addr_t; | ||
57 | |||
58 | typedef enum { | ||
59 | AD_BANDWIDTH = 0, | ||
60 | AD_COUNT | ||
61 | } agg_selection_t; | ||
62 | |||
63 | // rx machine states(43.4.11 in the 802.3ad standard) | ||
64 | typedef enum { | ||
65 | AD_RX_DUMMY, | ||
66 | AD_RX_INITIALIZE, // rx Machine | ||
67 | AD_RX_PORT_DISABLED, // rx Machine | ||
68 | AD_RX_LACP_DISABLED, // rx Machine | ||
69 | AD_RX_EXPIRED, // rx Machine | ||
70 | AD_RX_DEFAULTED, // rx Machine | ||
71 | AD_RX_CURRENT // rx Machine | ||
72 | } rx_states_t; | ||
73 | |||
74 | // periodic machine states(43.4.12 in the 802.3ad standard) | ||
75 | typedef enum { | ||
76 | AD_PERIODIC_DUMMY, | ||
77 | AD_NO_PERIODIC, // periodic machine | ||
78 | AD_FAST_PERIODIC, // periodic machine | ||
79 | AD_SLOW_PERIODIC, // periodic machine | ||
80 | AD_PERIODIC_TX // periodic machine | ||
81 | } periodic_states_t; | ||
82 | |||
83 | // mux machine states(43.4.13 in the 802.3ad standard) | ||
84 | typedef enum { | ||
85 | AD_MUX_DUMMY, | ||
86 | AD_MUX_DETACHED, // mux machine | ||
87 | AD_MUX_WAITING, // mux machine | ||
88 | AD_MUX_ATTACHED, // mux machine | ||
89 | AD_MUX_COLLECTING_DISTRIBUTING // mux machine | ||
90 | } mux_states_t; | ||
91 | |||
92 | // tx machine states(43.4.15 in the 802.3ad standard) | ||
93 | typedef enum { | ||
94 | AD_TX_DUMMY, | ||
95 | AD_TRANSMIT // tx Machine | ||
96 | } tx_states_t; | ||
97 | |||
98 | // rx indication types | ||
99 | typedef enum { | ||
100 | AD_TYPE_LACPDU = 1, // type lacpdu | ||
101 | AD_TYPE_MARKER // type marker | ||
102 | } pdu_type_t; | ||
103 | |||
104 | // rx marker indication types | ||
105 | typedef enum { | ||
106 | AD_MARKER_INFORMATION_SUBTYPE = 1, // marker imformation subtype | ||
107 | AD_MARKER_RESPONSE_SUBTYPE // marker response subtype | ||
108 | } marker_subtype_t; | ||
109 | |||
110 | // timers types(43.4.9 in the 802.3ad standard) | ||
111 | typedef enum { | ||
112 | AD_CURRENT_WHILE_TIMER, | ||
113 | AD_ACTOR_CHURN_TIMER, | ||
114 | AD_PERIODIC_TIMER, | ||
115 | AD_PARTNER_CHURN_TIMER, | ||
116 | AD_WAIT_WHILE_TIMER | ||
117 | } ad_timers_t; | ||
118 | |||
119 | #pragma pack(1) | ||
120 | |||
121 | typedef struct ad_header { | ||
122 | struct mac_addr destination_address; | ||
123 | struct mac_addr source_address; | ||
124 | u16 length_type; | ||
125 | } ad_header_t; | ||
126 | |||
127 | // Link Aggregation Control Protocol(LACP) data unit structure(43.4.2.2 in the 802.3ad standard) | ||
128 | typedef struct lacpdu { | ||
129 | u8 subtype; // = LACP(= 0x01) | ||
130 | u8 version_number; | ||
131 | u8 tlv_type_actor_info; // = actor information(type/length/value) | ||
132 | u8 actor_information_length; // = 20 | ||
133 | u16 actor_system_priority; | ||
134 | struct mac_addr actor_system; | ||
135 | u16 actor_key; | ||
136 | u16 actor_port_priority; | ||
137 | u16 actor_port; | ||
138 | u8 actor_state; | ||
139 | u8 reserved_3_1[3]; // = 0 | ||
140 | u8 tlv_type_partner_info; // = partner information | ||
141 | u8 partner_information_length; // = 20 | ||
142 | u16 partner_system_priority; | ||
143 | struct mac_addr partner_system; | ||
144 | u16 partner_key; | ||
145 | u16 partner_port_priority; | ||
146 | u16 partner_port; | ||
147 | u8 partner_state; | ||
148 | u8 reserved_3_2[3]; // = 0 | ||
149 | u8 tlv_type_collector_info; // = collector information | ||
150 | u8 collector_information_length; // = 16 | ||
151 | u16 collector_max_delay; | ||
152 | u8 reserved_12[12]; | ||
153 | u8 tlv_type_terminator; // = terminator | ||
154 | u8 terminator_length; // = 0 | ||
155 | u8 reserved_50[50]; // = 0 | ||
156 | } lacpdu_t; | ||
157 | |||
158 | typedef struct lacpdu_header { | ||
159 | struct ad_header ad_header; | ||
160 | struct lacpdu lacpdu; | ||
161 | } lacpdu_header_t; | ||
162 | |||
163 | // Marker Protocol Data Unit(PDU) structure(43.5.3.2 in the 802.3ad standard) | ||
164 | typedef struct marker { | ||
165 | u8 subtype; // = 0x02 (marker PDU) | ||
166 | u8 version_number; // = 0x01 | ||
167 | u8 tlv_type; // = 0x01 (marker information) | ||
168 | // = 0x02 (marker response information) | ||
169 | u8 marker_length; // = 0x16 | ||
170 | u16 requester_port; // The number assigned to the port by the requester | ||
171 | struct mac_addr requester_system; // The requester's system id | ||
172 | u32 requester_transaction_id; // The transaction id allocated by the requester, | ||
173 | u16 pad; // = 0 | ||
174 | u8 tlv_type_terminator; // = 0x00 | ||
175 | u8 terminator_length; // = 0x00 | ||
176 | u8 reserved_90[90]; // = 0 | ||
177 | } marker_t; | ||
178 | |||
179 | typedef struct marker_header { | ||
180 | struct ad_header ad_header; | ||
181 | struct marker marker; | ||
182 | } marker_header_t; | ||
183 | |||
184 | #pragma pack() | ||
185 | |||
186 | struct slave; | ||
187 | struct bonding; | ||
188 | struct ad_info; | ||
189 | struct port; | ||
190 | |||
191 | #ifdef __ia64__ | ||
192 | #pragma pack(8) | ||
193 | #endif | ||
194 | |||
195 | // aggregator structure(43.4.5 in the 802.3ad standard) | ||
196 | typedef struct aggregator { | ||
197 | struct mac_addr aggregator_mac_address; | ||
198 | u16 aggregator_identifier; | ||
199 | u16 is_individual; // BOOLEAN | ||
200 | u16 actor_admin_aggregator_key; | ||
201 | u16 actor_oper_aggregator_key; | ||
202 | struct mac_addr partner_system; | ||
203 | u16 partner_system_priority; | ||
204 | u16 partner_oper_aggregator_key; | ||
205 | u16 receive_state; // BOOLEAN | ||
206 | u16 transmit_state; // BOOLEAN | ||
207 | struct port *lag_ports; | ||
208 | // ****** PRIVATE PARAMETERS ****** | ||
209 | struct slave *slave; // pointer to the bond slave that this aggregator belongs to | ||
210 | u16 is_active; // BOOLEAN. Indicates if this aggregator is active | ||
211 | u16 num_of_ports; | ||
212 | } aggregator_t; | ||
213 | |||
214 | // port structure(43.4.6 in the 802.3ad standard) | ||
215 | typedef struct port { | ||
216 | u16 actor_port_number; | ||
217 | u16 actor_port_priority; | ||
218 | struct mac_addr actor_system; // This parameter is added here although it is not specified in the standard, just for simplification | ||
219 | u16 actor_system_priority; // This parameter is added here although it is not specified in the standard, just for simplification | ||
220 | u16 actor_port_aggregator_identifier; | ||
221 | u16 ntt; // BOOLEAN | ||
222 | u16 actor_admin_port_key; | ||
223 | u16 actor_oper_port_key; | ||
224 | u8 actor_admin_port_state; | ||
225 | u8 actor_oper_port_state; | ||
226 | struct mac_addr partner_admin_system; | ||
227 | struct mac_addr partner_oper_system; | ||
228 | u16 partner_admin_system_priority; | ||
229 | u16 partner_oper_system_priority; | ||
230 | u16 partner_admin_key; | ||
231 | u16 partner_oper_key; | ||
232 | u16 partner_admin_port_number; | ||
233 | u16 partner_oper_port_number; | ||
234 | u16 partner_admin_port_priority; | ||
235 | u16 partner_oper_port_priority; | ||
236 | u8 partner_admin_port_state; | ||
237 | u8 partner_oper_port_state; | ||
238 | u16 is_enabled; // BOOLEAN | ||
239 | // ****** PRIVATE PARAMETERS ****** | ||
240 | u16 sm_vars; // all state machines variables for this port | ||
241 | rx_states_t sm_rx_state; // state machine rx state | ||
242 | u16 sm_rx_timer_counter; // state machine rx timer counter | ||
243 | periodic_states_t sm_periodic_state;// state machine periodic state | ||
244 | u16 sm_periodic_timer_counter; // state machine periodic timer counter | ||
245 | mux_states_t sm_mux_state; // state machine mux state | ||
246 | u16 sm_mux_timer_counter; // state machine mux timer counter | ||
247 | tx_states_t sm_tx_state; // state machine tx state | ||
248 | u16 sm_tx_timer_counter; // state machine tx timer counter(allways on - enter to transmit state 3 time per second) | ||
249 | struct slave *slave; // pointer to the bond slave that this port belongs to | ||
250 | struct aggregator *aggregator; // pointer to an aggregator that this port related to | ||
251 | struct port *next_port_in_aggregator; // Next port on the linked list of the parent aggregator | ||
252 | u32 transaction_id; // continuous number for identification of Marker PDU's; | ||
253 | struct lacpdu lacpdu; // the lacpdu that will be sent for this port | ||
254 | } port_t; | ||
255 | |||
256 | // system structure | ||
257 | typedef struct ad_system { | ||
258 | u16 sys_priority; | ||
259 | struct mac_addr sys_mac_addr; | ||
260 | } ad_system_t; | ||
261 | |||
262 | #ifdef __ia64__ | ||
263 | #pragma pack() | ||
264 | #endif | ||
265 | |||
266 | // ================= AD Exported structures to the main bonding code ================== | ||
267 | #define BOND_AD_INFO(bond) ((bond)->ad_info) | ||
268 | #define SLAVE_AD_INFO(slave) ((slave)->ad_info) | ||
269 | |||
270 | struct ad_bond_info { | ||
271 | ad_system_t system; // 802.3ad system structure | ||
272 | u32 agg_select_timer; // Timer to select aggregator after all adapter's hand shakes | ||
273 | u32 agg_select_mode; // Mode of selection of active aggregator(bandwidth/count) | ||
274 | int lacp_fast; /* whether fast periodic tx should be | ||
275 | * requested | ||
276 | */ | ||
277 | struct timer_list ad_timer; | ||
278 | struct packet_type ad_pkt_type; | ||
279 | }; | ||
280 | |||
281 | struct ad_slave_info { | ||
282 | struct aggregator aggregator; // 802.3ad aggregator structure | ||
283 | struct port port; // 802.3ad port structure | ||
284 | spinlock_t rx_machine_lock; // To avoid race condition between callback and receive interrupt | ||
285 | u16 id; | ||
286 | }; | ||
287 | |||
288 | // ================= AD Exported functions to the main bonding code ================== | ||
289 | void bond_3ad_initialize(struct bonding *bond, u16 tick_resolution, int lacp_fast); | ||
290 | int bond_3ad_bind_slave(struct slave *slave); | ||
291 | void bond_3ad_unbind_slave(struct slave *slave); | ||
292 | void bond_3ad_state_machine_handler(struct bonding *bond); | ||
293 | void bond_3ad_adapter_speed_changed(struct slave *slave); | ||
294 | void bond_3ad_adapter_duplex_changed(struct slave *slave); | ||
295 | void bond_3ad_handle_link_change(struct slave *slave, char link); | ||
296 | int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info); | ||
297 | int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev); | ||
298 | int bond_3ad_lacpdu_recv(struct sk_buff *skb, struct net_device *dev, struct packet_type* ptype); | ||
299 | #endif //__BOND_3AD_H__ | ||
300 | |||