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1 | /* | |
2 | * drivers/net/bond/bond_options.h - bonding options | |
3 | * Copyright (c) 2013 Nikolay Aleksandrov <nikolay@redhat.com> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | */ | |
10 | ||
11 | #ifndef _NET_BOND_OPTIONS_H | |
12 | #define _NET_BOND_OPTIONS_H | |
13 | ||
14 | #define BOND_OPT_MAX_NAMELEN 32 | |
15 | #define BOND_OPT_VALID(opt) ((opt) < BOND_OPT_LAST) | |
16 | #define BOND_MODE_ALL_EX(x) (~(x)) | |
17 | ||
18 | /* Option flags: | |
19 | * BOND_OPTFLAG_NOSLAVES - check if the bond device is empty before setting | |
20 | * BOND_OPTFLAG_IFDOWN - check if the bond device is down before setting | |
21 | * BOND_OPTFLAG_RAWVAL - the option parses the value itself | |
22 | */ | |
23 | enum { | |
24 | BOND_OPTFLAG_NOSLAVES = BIT(0), | |
25 | BOND_OPTFLAG_IFDOWN = BIT(1), | |
26 | BOND_OPTFLAG_RAWVAL = BIT(2) | |
27 | }; | |
28 | ||
29 | /* Value type flags: | |
30 | * BOND_VALFLAG_DEFAULT - mark the value as default | |
31 | * BOND_VALFLAG_(MIN|MAX) - mark the value as min/max | |
32 | */ | |
33 | enum { | |
34 | BOND_VALFLAG_DEFAULT = BIT(0), | |
35 | BOND_VALFLAG_MIN = BIT(1), | |
36 | BOND_VALFLAG_MAX = BIT(2) | |
37 | }; | |
38 | ||
39 | /* Option IDs, their bit positions correspond to their IDs */ | |
40 | enum { | |
41 | BOND_OPT_MODE, | |
42 | BOND_OPT_PACKETS_PER_SLAVE, | |
43 | BOND_OPT_XMIT_HASH, | |
44 | BOND_OPT_ARP_VALIDATE, | |
45 | BOND_OPT_ARP_ALL_TARGETS, | |
46 | BOND_OPT_FAIL_OVER_MAC, | |
47 | BOND_OPT_ARP_INTERVAL, | |
48 | BOND_OPT_ARP_TARGETS, | |
49 | BOND_OPT_DOWNDELAY, | |
50 | BOND_OPT_UPDELAY, | |
51 | BOND_OPT_LACP_RATE, | |
52 | BOND_OPT_MINLINKS, | |
53 | BOND_OPT_AD_SELECT, | |
54 | BOND_OPT_NUM_PEER_NOTIF, | |
55 | BOND_OPT_MIIMON, | |
56 | BOND_OPT_PRIMARY, | |
57 | BOND_OPT_PRIMARY_RESELECT, | |
58 | BOND_OPT_USE_CARRIER, | |
59 | BOND_OPT_ACTIVE_SLAVE, | |
60 | BOND_OPT_QUEUE_ID, | |
61 | BOND_OPT_ALL_SLAVES_ACTIVE, | |
62 | BOND_OPT_RESEND_IGMP, | |
63 | BOND_OPT_LP_INTERVAL, | |
64 | BOND_OPT_SLAVES, | |
65 | BOND_OPT_TLB_DYNAMIC_LB, | |
66 | BOND_OPT_AD_ACTOR_SYS_PRIO, | |
67 | BOND_OPT_AD_ACTOR_SYSTEM, | |
68 | BOND_OPT_AD_USER_PORT_KEY, | |
69 | BOND_OPT_NUM_PEER_NOTIF_ALIAS, | |
70 | BOND_OPT_LAST | |
71 | }; | |
72 | ||
73 | /* This structure is used for storing option values and for passing option | |
74 | * values when changing an option. The logic when used as an arg is as follows: | |
75 | * - if string != NULL -> parse it, if the opt is RAW type then return it, else | |
76 | * return the parse result | |
77 | * - if string == NULL -> parse value | |
78 | */ | |
79 | struct bond_opt_value { | |
80 | char *string; | |
81 | u64 value; | |
82 | u32 flags; | |
83 | }; | |
84 | ||
85 | struct bonding; | |
86 | ||
87 | struct bond_option { | |
88 | int id; | |
89 | const char *name; | |
90 | const char *desc; | |
91 | u32 flags; | |
92 | ||
93 | /* unsuppmodes is used to denote modes in which the option isn't | |
94 | * supported. | |
95 | */ | |
96 | unsigned long unsuppmodes; | |
97 | /* supported values which this option can have, can be a subset of | |
98 | * BOND_OPTVAL_RANGE's value range | |
99 | */ | |
100 | const struct bond_opt_value *values; | |
101 | ||
102 | int (*set)(struct bonding *bond, const struct bond_opt_value *val); | |
103 | }; | |
104 | ||
105 | int __bond_opt_set(struct bonding *bond, unsigned int option, | |
106 | struct bond_opt_value *val); | |
107 | int __bond_opt_set_notify(struct bonding *bond, unsigned int option, | |
108 | struct bond_opt_value *val); | |
109 | int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf); | |
110 | ||
111 | const struct bond_opt_value *bond_opt_parse(const struct bond_option *opt, | |
112 | struct bond_opt_value *val); | |
113 | const struct bond_option *bond_opt_get(unsigned int option); | |
114 | const struct bond_option *bond_opt_get_by_name(const char *name); | |
115 | const struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val); | |
116 | ||
117 | /* This helper is used to initialize a bond_opt_value structure for parameter | |
118 | * passing. There should be either a valid string or value, but not both. | |
119 | * When value is ULLONG_MAX then string will be used. | |
120 | */ | |
121 | static inline void __bond_opt_init(struct bond_opt_value *optval, | |
122 | char *string, u64 value) | |
123 | { | |
124 | memset(optval, 0, sizeof(*optval)); | |
125 | optval->value = ULLONG_MAX; | |
126 | if (value == ULLONG_MAX) | |
127 | optval->string = string; | |
128 | else | |
129 | optval->value = value; | |
130 | } | |
131 | #define bond_opt_initval(optval, value) __bond_opt_init(optval, NULL, value) | |
132 | #define bond_opt_initstr(optval, str) __bond_opt_init(optval, str, ULLONG_MAX) | |
133 | ||
134 | void bond_option_arp_ip_targets_clear(struct bonding *bond); | |
135 | ||
136 | #endif /* _NET_BOND_OPTIONS_H */ |