Commit | Line | Data |
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2874c5fd | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
09117362 NA |
2 | /* |
3 | * drivers/net/bond/bond_options.h - bonding options | |
4 | * Copyright (c) 2013 Nikolay Aleksandrov <nikolay@redhat.com> | |
09117362 NA |
5 | */ |
6 | ||
1ef8019b DM |
7 | #ifndef _NET_BOND_OPTIONS_H |
8 | #define _NET_BOND_OPTIONS_H | |
09117362 | 9 | |
949d6b40 JK |
10 | #include <linux/bits.h> |
11 | #include <linux/limits.h> | |
12 | #include <linux/types.h> | |
13 | #include <linux/string.h> | |
14 | ||
15 | struct netlink_ext_ack; | |
16 | struct nlattr; | |
17 | ||
09117362 NA |
18 | #define BOND_OPT_MAX_NAMELEN 32 |
19 | #define BOND_OPT_VALID(opt) ((opt) < BOND_OPT_LAST) | |
20 | #define BOND_MODE_ALL_EX(x) (~(x)) | |
21 | ||
22 | /* Option flags: | |
23 | * BOND_OPTFLAG_NOSLAVES - check if the bond device is empty before setting | |
24 | * BOND_OPTFLAG_IFDOWN - check if the bond device is down before setting | |
25 | * BOND_OPTFLAG_RAWVAL - the option parses the value itself | |
26 | */ | |
27 | enum { | |
28 | BOND_OPTFLAG_NOSLAVES = BIT(0), | |
29 | BOND_OPTFLAG_IFDOWN = BIT(1), | |
30 | BOND_OPTFLAG_RAWVAL = BIT(2) | |
31 | }; | |
32 | ||
33 | /* Value type flags: | |
34 | * BOND_VALFLAG_DEFAULT - mark the value as default | |
35 | * BOND_VALFLAG_(MIN|MAX) - mark the value as min/max | |
36 | */ | |
37 | enum { | |
38 | BOND_VALFLAG_DEFAULT = BIT(0), | |
39 | BOND_VALFLAG_MIN = BIT(1), | |
40 | BOND_VALFLAG_MAX = BIT(2) | |
41 | }; | |
42 | ||
43 | /* Option IDs, their bit positions correspond to their IDs */ | |
44 | enum { | |
2b3798d5 | 45 | BOND_OPT_MODE, |
aa59d851 | 46 | BOND_OPT_PACKETS_PER_SLAVE, |
a4b32ce7 | 47 | BOND_OPT_XMIT_HASH, |
16228881 | 48 | BOND_OPT_ARP_VALIDATE, |
edf36b24 | 49 | BOND_OPT_ARP_ALL_TARGETS, |
1df6b6aa | 50 | BOND_OPT_FAIL_OVER_MAC, |
7bdb04ed | 51 | BOND_OPT_ARP_INTERVAL, |
4fb0ef58 | 52 | BOND_OPT_ARP_TARGETS, |
25a9b54a | 53 | BOND_OPT_DOWNDELAY, |
e4994612 | 54 | BOND_OPT_UPDELAY, |
d3131de7 | 55 | BOND_OPT_LACP_RATE, |
633ddc9e | 56 | BOND_OPT_MINLINKS, |
9e5f5eeb | 57 | BOND_OPT_AD_SELECT, |
ef56becb | 58 | BOND_OPT_NUM_PEER_NOTIF, |
b98d9c66 | 59 | BOND_OPT_MIIMON, |
180222f0 | 60 | BOND_OPT_PRIMARY, |
388d3a6d | 61 | BOND_OPT_PRIMARY_RESELECT, |
0fff0608 | 62 | BOND_OPT_USE_CARRIER, |
d1fbd3ed | 63 | BOND_OPT_ACTIVE_SLAVE, |
24089ba1 | 64 | BOND_OPT_QUEUE_ID, |
3df01162 | 65 | BOND_OPT_ALL_SLAVES_ACTIVE, |
105c8fb6 | 66 | BOND_OPT_RESEND_IGMP, |
4325b374 | 67 | BOND_OPT_LP_INTERVAL, |
0e2e5b66 | 68 | BOND_OPT_SLAVES, |
e9f0fb88 | 69 | BOND_OPT_TLB_DYNAMIC_LB, |
6791e466 | 70 | BOND_OPT_AD_ACTOR_SYS_PRIO, |
74514957 | 71 | BOND_OPT_AD_ACTOR_SYSTEM, |
d22a5fc0 | 72 | BOND_OPT_AD_USER_PORT_KEY, |
205845a3 | 73 | BOND_OPT_NUM_PEER_NOTIF_ALIAS, |
07a4ddec | 74 | BOND_OPT_PEER_NOTIF_DELAY, |
3a755cd8 | 75 | BOND_OPT_LACP_ACTIVE, |
5944b5ab | 76 | BOND_OPT_MISSED_MAX, |
129e3c1b | 77 | BOND_OPT_NS_TARGETS, |
0a2ff7cc | 78 | BOND_OPT_PRIO, |
09117362 NA |
79 | BOND_OPT_LAST |
80 | }; | |
81 | ||
82 | /* This structure is used for storing option values and for passing option | |
83 | * values when changing an option. The logic when used as an arg is as follows: | |
841e9564 HL |
84 | * - if value != ULLONG_MAX -> parse value |
85 | * - if string != NULL -> parse string | |
86 | * - if the opt is RAW data and length less than maxlen, | |
87 | * copy the data to extra storage | |
09117362 | 88 | */ |
841e9564 HL |
89 | |
90 | #define BOND_OPT_EXTRA_MAXLEN 16 | |
09117362 NA |
91 | struct bond_opt_value { |
92 | char *string; | |
93 | u64 value; | |
94 | u32 flags; | |
f2b3b28c HL |
95 | union { |
96 | char extra[BOND_OPT_EXTRA_MAXLEN]; | |
97 | struct net_device *slave_dev; | |
98 | }; | |
09117362 NA |
99 | }; |
100 | ||
101 | struct bonding; | |
102 | ||
103 | struct bond_option { | |
104 | int id; | |
f3253339 | 105 | const char *name; |
106 | const char *desc; | |
09117362 NA |
107 | u32 flags; |
108 | ||
109 | /* unsuppmodes is used to denote modes in which the option isn't | |
110 | * supported. | |
111 | */ | |
112 | unsigned long unsuppmodes; | |
113 | /* supported values which this option can have, can be a subset of | |
114 | * BOND_OPTVAL_RANGE's value range | |
115 | */ | |
f3253339 | 116 | const struct bond_opt_value *values; |
09117362 | 117 | |
28f084cc | 118 | int (*set)(struct bonding *bond, const struct bond_opt_value *val); |
09117362 NA |
119 | }; |
120 | ||
121 | int __bond_opt_set(struct bonding *bond, unsigned int option, | |
2bff369b JT |
122 | struct bond_opt_value *val, |
123 | struct nlattr *bad_attr, struct netlink_ext_ack *extack); | |
7a7e96e0 VY |
124 | int __bond_opt_set_notify(struct bonding *bond, unsigned int option, |
125 | struct bond_opt_value *val); | |
09117362 | 126 | int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf); |
28f084cc | 127 | |
f3253339 | 128 | const struct bond_opt_value *bond_opt_parse(const struct bond_option *opt, |
28f084cc | 129 | struct bond_opt_value *val); |
f3253339 | 130 | const struct bond_option *bond_opt_get(unsigned int option); |
dc3e5d18 | 131 | const struct bond_option *bond_opt_get_by_name(const char *name); |
f3253339 | 132 | const struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val); |
09117362 NA |
133 | |
134 | /* This helper is used to initialize a bond_opt_value structure for parameter | |
135 | * passing. There should be either a valid string or value, but not both. | |
136 | * When value is ULLONG_MAX then string will be used. | |
137 | */ | |
138 | static inline void __bond_opt_init(struct bond_opt_value *optval, | |
841e9564 HL |
139 | char *string, u64 value, |
140 | void *extra, size_t extra_len) | |
09117362 NA |
141 | { |
142 | memset(optval, 0, sizeof(*optval)); | |
143 | optval->value = ULLONG_MAX; | |
841e9564 | 144 | if (value != ULLONG_MAX) |
09117362 | 145 | optval->value = value; |
841e9564 HL |
146 | else if (string) |
147 | optval->string = string; | |
f2b3b28c HL |
148 | |
149 | if (extra && extra_len <= BOND_OPT_EXTRA_MAXLEN) | |
841e9564 | 150 | memcpy(optval->extra, extra, extra_len); |
09117362 | 151 | } |
841e9564 HL |
152 | #define bond_opt_initval(optval, value) __bond_opt_init(optval, NULL, value, NULL, 0) |
153 | #define bond_opt_initstr(optval, str) __bond_opt_init(optval, str, ULLONG_MAX, NULL, 0) | |
154 | #define bond_opt_initextra(optval, extra, extra_len) \ | |
155 | __bond_opt_init(optval, NULL, ULLONG_MAX, extra, extra_len) | |
f2b3b28c HL |
156 | #define bond_opt_slave_initval(optval, slave_dev, value) \ |
157 | __bond_opt_init(optval, NULL, value, slave_dev, sizeof(struct net_device *)) | |
2b3798d5 | 158 | |
4fb0ef58 | 159 | void bond_option_arp_ip_targets_clear(struct bonding *bond); |
129e3c1b HL |
160 | #if IS_ENABLED(CONFIG_IPV6) |
161 | void bond_option_ns_ip6_targets_clear(struct bonding *bond); | |
162 | #endif | |
f3253339 | 163 | |
1ef8019b | 164 | #endif /* _NET_BOND_OPTIONS_H */ |