1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * drivers/net/bond/bond_options.h - bonding options
4 * Copyright (c) 2013 Nikolay Aleksandrov <nikolay@redhat.com>
7 #ifndef _NET_BOND_OPTIONS_H
8 #define _NET_BOND_OPTIONS_H
10 #define BOND_OPT_MAX_NAMELEN 32
11 #define BOND_OPT_VALID(opt) ((opt) < BOND_OPT_LAST)
12 #define BOND_MODE_ALL_EX(x) (~(x))
15 * BOND_OPTFLAG_NOSLAVES - check if the bond device is empty before setting
16 * BOND_OPTFLAG_IFDOWN - check if the bond device is down before setting
17 * BOND_OPTFLAG_RAWVAL - the option parses the value itself
20 BOND_OPTFLAG_NOSLAVES = BIT(0),
21 BOND_OPTFLAG_IFDOWN = BIT(1),
22 BOND_OPTFLAG_RAWVAL = BIT(2)
26 * BOND_VALFLAG_DEFAULT - mark the value as default
27 * BOND_VALFLAG_(MIN|MAX) - mark the value as min/max
30 BOND_VALFLAG_DEFAULT = BIT(0),
31 BOND_VALFLAG_MIN = BIT(1),
32 BOND_VALFLAG_MAX = BIT(2)
35 /* Option IDs, their bit positions correspond to their IDs */
38 BOND_OPT_PACKETS_PER_SLAVE,
40 BOND_OPT_ARP_VALIDATE,
41 BOND_OPT_ARP_ALL_TARGETS,
42 BOND_OPT_FAIL_OVER_MAC,
43 BOND_OPT_ARP_INTERVAL,
50 BOND_OPT_NUM_PEER_NOTIF,
53 BOND_OPT_PRIMARY_RESELECT,
55 BOND_OPT_ACTIVE_SLAVE,
57 BOND_OPT_ALL_SLAVES_ACTIVE,
61 BOND_OPT_TLB_DYNAMIC_LB,
62 BOND_OPT_AD_ACTOR_SYS_PRIO,
63 BOND_OPT_AD_ACTOR_SYSTEM,
64 BOND_OPT_AD_USER_PORT_KEY,
65 BOND_OPT_NUM_PEER_NOTIF_ALIAS,
66 BOND_OPT_PEER_NOTIF_DELAY,
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 value != ULLONG_MAX -> parse value
76 * - if string != NULL -> parse string
77 * - if the opt is RAW data and length less than maxlen,
78 * copy the data to extra storage
81 #define BOND_OPT_EXTRA_MAXLEN 16
82 struct bond_opt_value {
86 char extra[BOND_OPT_EXTRA_MAXLEN];
97 /* unsuppmodes is used to denote modes in which the option isn't
100 unsigned long unsuppmodes;
101 /* supported values which this option can have, can be a subset of
102 * BOND_OPTVAL_RANGE's value range
104 const struct bond_opt_value *values;
106 int (*set)(struct bonding *bond, const struct bond_opt_value *val);
109 int __bond_opt_set(struct bonding *bond, unsigned int option,
110 struct bond_opt_value *val);
111 int __bond_opt_set_notify(struct bonding *bond, unsigned int option,
112 struct bond_opt_value *val);
113 int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf);
115 const struct bond_opt_value *bond_opt_parse(const struct bond_option *opt,
116 struct bond_opt_value *val);
117 const struct bond_option *bond_opt_get(unsigned int option);
118 const struct bond_option *bond_opt_get_by_name(const char *name);
119 const struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val);
121 /* This helper is used to initialize a bond_opt_value structure for parameter
122 * passing. There should be either a valid string or value, but not both.
123 * When value is ULLONG_MAX then string will be used.
125 static inline void __bond_opt_init(struct bond_opt_value *optval,
126 char *string, u64 value,
127 void *extra, size_t extra_len)
129 memset(optval, 0, sizeof(*optval));
130 optval->value = ULLONG_MAX;
131 if (value != ULLONG_MAX)
132 optval->value = value;
134 optval->string = string;
135 else if (extra_len <= BOND_OPT_EXTRA_MAXLEN)
136 memcpy(optval->extra, extra, extra_len);
138 #define bond_opt_initval(optval, value) __bond_opt_init(optval, NULL, value, NULL, 0)
139 #define bond_opt_initstr(optval, str) __bond_opt_init(optval, str, ULLONG_MAX, NULL, 0)
140 #define bond_opt_initextra(optval, extra, extra_len) \
141 __bond_opt_init(optval, NULL, ULLONG_MAX, extra, extra_len)
143 void bond_option_arp_ip_targets_clear(struct bonding *bond);
144 #if IS_ENABLED(CONFIG_IPV6)
145 void bond_option_ns_ip6_targets_clear(struct bonding *bond);
148 #endif /* _NET_BOND_OPTIONS_H */