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,
69 /* This structure is used for storing option values and for passing option
70 * values when changing an option. The logic when used as an arg is as follows:
71 * - if string != NULL -> parse it, if the opt is RAW type then return it, else
72 * return the parse result
73 * - if string == NULL -> parse value
75 struct bond_opt_value {
89 /* unsuppmodes is used to denote modes in which the option isn't
92 unsigned long unsuppmodes;
93 /* supported values which this option can have, can be a subset of
94 * BOND_OPTVAL_RANGE's value range
96 const struct bond_opt_value *values;
98 int (*set)(struct bonding *bond, const struct bond_opt_value *val);
101 int __bond_opt_set(struct bonding *bond, unsigned int option,
102 struct bond_opt_value *val);
103 int __bond_opt_set_notify(struct bonding *bond, unsigned int option,
104 struct bond_opt_value *val);
105 int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf);
107 const struct bond_opt_value *bond_opt_parse(const struct bond_option *opt,
108 struct bond_opt_value *val);
109 const struct bond_option *bond_opt_get(unsigned int option);
110 const struct bond_option *bond_opt_get_by_name(const char *name);
111 const struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val);
113 /* This helper is used to initialize a bond_opt_value structure for parameter
114 * passing. There should be either a valid string or value, but not both.
115 * When value is ULLONG_MAX then string will be used.
117 static inline void __bond_opt_init(struct bond_opt_value *optval,
118 char *string, u64 value)
120 memset(optval, 0, sizeof(*optval));
121 optval->value = ULLONG_MAX;
122 if (value == ULLONG_MAX)
123 optval->string = string;
125 optval->value = value;
127 #define bond_opt_initval(optval, value) __bond_opt_init(optval, NULL, value)
128 #define bond_opt_initstr(optval, str) __bond_opt_init(optval, str, ULLONG_MAX)
130 void bond_option_arp_ip_targets_clear(struct bonding *bond);
132 #endif /* _NET_BOND_OPTIONS_H */