2 * drivers/net/bond/bond_options.h - bonding options
3 * Copyright (c) 2013 Nikolay Aleksandrov <nikolay@redhat.com>
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.
11 #ifndef _BOND_OPTIONS_H
12 #define _BOND_OPTIONS_H
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))
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
24 BOND_OPTFLAG_NOSLAVES = BIT(0),
25 BOND_OPTFLAG_IFDOWN = BIT(1),
26 BOND_OPTFLAG_RAWVAL = BIT(2)
30 * BOND_VALFLAG_DEFAULT - mark the value as default
31 * BOND_VALFLAG_(MIN|MAX) - mark the value as min/max
34 BOND_VALFLAG_DEFAULT = BIT(0),
35 BOND_VALFLAG_MIN = BIT(1),
36 BOND_VALFLAG_MAX = BIT(2)
39 /* Option IDs, their bit positions correspond to their IDs */
42 BOND_OPT_PACKETS_PER_SLAVE,
44 BOND_OPT_ARP_VALIDATE,
45 BOND_OPT_ARP_ALL_TARGETS,
49 /* This structure is used for storing option values and for passing option
50 * values when changing an option. The logic when used as an arg is as follows:
51 * - if string != NULL -> parse it, if the opt is RAW type then return it, else
52 * return the parse result
53 * - if string == NULL -> parse value
55 struct bond_opt_value {
69 /* unsuppmodes is used to denote modes in which the option isn't
72 unsigned long unsuppmodes;
73 /* supported values which this option can have, can be a subset of
74 * BOND_OPTVAL_RANGE's value range
76 struct bond_opt_value *values;
78 int (*set)(struct bonding *bond, struct bond_opt_value *val);
81 int __bond_opt_set(struct bonding *bond, unsigned int option,
82 struct bond_opt_value *val);
83 int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf);
84 struct bond_opt_value *bond_opt_parse(const struct bond_option *opt,
85 struct bond_opt_value *val);
86 struct bond_option *bond_opt_get(unsigned int option);
87 struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val);
89 /* This helper is used to initialize a bond_opt_value structure for parameter
90 * passing. There should be either a valid string or value, but not both.
91 * When value is ULLONG_MAX then string will be used.
93 static inline void __bond_opt_init(struct bond_opt_value *optval,
94 char *string, u64 value)
96 memset(optval, 0, sizeof(*optval));
97 optval->value = ULLONG_MAX;
98 if (value == ULLONG_MAX)
99 optval->string = string;
101 optval->value = value;
103 #define bond_opt_initval(optval, value) __bond_opt_init(optval, NULL, value)
104 #define bond_opt_initstr(optval, str) __bond_opt_init(optval, str, ULLONG_MAX)
106 int bond_option_mode_set(struct bonding *bond, struct bond_opt_value *newval);
107 int bond_option_pps_set(struct bonding *bond, struct bond_opt_value *newval);
108 int bond_option_xmit_hash_policy_set(struct bonding *bond,
109 struct bond_opt_value *newval);
110 int bond_option_arp_validate_set(struct bonding *bond,
111 struct bond_opt_value *newval);
112 int bond_option_arp_all_targets_set(struct bonding *bond,
113 struct bond_opt_value *newval);
114 #endif /* _BOND_OPTIONS_H */