1 | /* $NetBSD: ieee8023ad_lacp_impl.h,v 1.5 2007/02/21 23:00:06 thorpej Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c)2005 YAMAMOTO Takashi, |
5 | * All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
10 | * 1. Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
15 | * |
16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
17 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
20 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
22 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
23 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
24 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
26 | * SUCH DAMAGE. |
27 | */ |
28 | |
29 | #ifndef _NET_AGR_IEEE8023AD_LACP_IMPL_H_ |
30 | #define _NET_AGR_IEEE8023AD_LACP_IMPL_H_ |
31 | |
32 | /* |
33 | * IEEE802.3ad LACP |
34 | * |
35 | * implementation details. |
36 | */ |
37 | |
38 | #include <sys/queue.h> |
39 | |
40 | #define LACP_TIMER_CURRENT_WHILE 0 |
41 | #define LACP_TIMER_PERIODIC 1 |
42 | #define LACP_TIMER_WAIT_WHILE 2 |
43 | #define LACP_NTIMER 3 |
44 | |
45 | #define LACP_TIMER_ARM(port, timer, val) \ |
46 | (port)->lp_timer[(timer)] = (val) |
47 | #define LACP_TIMER_DISARM(port, timer) \ |
48 | (port)->lp_timer[(timer)] = 0 |
49 | #define LACP_TIMER_ISARMED(port, timer) \ |
50 | ((port)->lp_timer[(timer)] > 0) |
51 | |
52 | struct lacp_aggregator { |
53 | TAILQ_ENTRY(lacp_aggregator) la_q; |
54 | int la_refcnt; /* number of ports which selected us */ |
55 | int la_nports; /* number of distributing ports */ |
56 | TAILQ_HEAD(, lacp_port) la_ports; /* distributing ports */ |
57 | struct lacp_peerinfo la_partner; |
58 | struct lacp_peerinfo la_actor; |
59 | int la_pending; /* number of ports which is waiting wait_while */ |
60 | }; |
61 | |
62 | struct lacp_softc { |
63 | struct lacp_aggregator *lsc_active_aggregator; |
64 | TAILQ_HEAD(, lacp_aggregator) lsc_aggregators; |
65 | bool lsc_suppress_distributing; |
66 | struct callout lsc_transit_callout; |
67 | }; |
68 | |
69 | #define LACP_TRANSIT_DELAY 1000 /* in msec */ |
70 | |
71 | enum lacp_selected { |
72 | LACP_UNSELECTED, |
73 | LACP_STANDBY, /* not used in this implementation */ |
74 | LACP_SELECTED, |
75 | }; |
76 | |
77 | enum lacp_mux_state { |
78 | LACP_MUX_DETACHED, |
79 | LACP_MUX_WAITING, |
80 | LACP_MUX_ATTACHED, |
81 | LACP_MUX_COLLECTING, |
82 | LACP_MUX_DISTRIBUTING, |
83 | }; |
84 | |
85 | struct lacp_port { |
86 | TAILQ_ENTRY(lacp_port) lp_dist_q; |
87 | struct agr_port *lp_agrport; |
88 | struct lacp_peerinfo lp_partner; |
89 | struct lacp_peerinfo lp_actor; |
90 | #define lp_state lp_actor.lip_state |
91 | #define lp_key lp_actor.lip_key |
92 | int lp_last_lacpdu_sent; |
93 | enum lacp_mux_state lp_mux_state; |
94 | enum lacp_selected lp_selected; |
95 | int lp_flags; |
96 | u_int lp_media; /* XXX redundant */ |
97 | int lp_timer[LACP_NTIMER]; |
98 | |
99 | struct lacp_aggregator *lp_aggregator; |
100 | }; |
101 | |
102 | #define LACPPORT_NTT 1 /* need to transmit */ |
103 | |
104 | #define LACP_SOFTC(sc) \ |
105 | (&IEEE8023AD_SOFTC(sc)->isc_lacpsc) |
106 | #define LACP_PORT(port) \ |
107 | (&IEEE8023AD_PORT(port)->iport_lacpport) |
108 | |
109 | void lacp_run_timers(struct lacp_port *); |
110 | void lacp_portinit(struct agr_port *); |
111 | void lacp_portfini(struct agr_port *); |
112 | int lacp_compare_peerinfo(const struct lacp_peerinfo *, |
113 | const struct lacp_peerinfo *); |
114 | int lacp_compare_systemid(const struct lacp_systemid *, |
115 | const struct lacp_systemid *); |
116 | int lacp_compare_portid(const struct lacp_portid *, |
117 | const struct lacp_portid *); |
118 | |
119 | void lacp_select(struct lacp_port *); |
120 | void lacp_unselect(struct lacp_port *); |
121 | |
122 | void lacp_disable_collecting(struct lacp_port *); |
123 | void lacp_enable_collecting(struct lacp_port *); |
124 | void lacp_disable_distributing(struct lacp_port *); |
125 | void lacp_enable_distributing(struct lacp_port *); |
126 | |
127 | int lacp_xmit_lacpdu(struct lacp_port *); |
128 | |
129 | #endif /* !_NET_AGR_IEEE8023AD_LACP_IMPL_H_ */ |
130 | |