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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 _BOND_OPTIONS_H
12#define _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 */
23enum {
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 */
33enum {
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 */
40enum {
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_LAST
66};
67
68/* This structure is used for storing option values and for passing option
69 * values when changing an option. The logic when used as an arg is as follows:
70 * - if string != NULL -> parse it, if the opt is RAW type then return it, else
71 * return the parse result
72 * - if string == NULL -> parse value
73 */
74struct bond_opt_value {
75 char *string;
76 u64 value;
77 u32 flags;
78};
79
80struct bonding;
81
82struct bond_option {
83 int id;
84 char *name;
85 char *desc;
86 u32 flags;
87
88 /* unsuppmodes is used to denote modes in which the option isn't
89 * supported.
90 */
91 unsigned long unsuppmodes;
92 /* supported values which this option can have, can be a subset of
93 * BOND_OPTVAL_RANGE's value range
94 */
95 struct bond_opt_value *values;
96
97 int (*set)(struct bonding *bond, struct bond_opt_value *val);
98};
99
100int __bond_opt_set(struct bonding *bond, unsigned int option,
101 struct bond_opt_value *val);
102int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf);
103struct bond_opt_value *bond_opt_parse(const struct bond_option *opt,
104 struct bond_opt_value *val);
105struct bond_option *bond_opt_get(unsigned int option);
106struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val);
107
108/* This helper is used to initialize a bond_opt_value structure for parameter
109 * passing. There should be either a valid string or value, but not both.
110 * When value is ULLONG_MAX then string will be used.
111 */
112static inline void __bond_opt_init(struct bond_opt_value *optval,
113 char *string, u64 value)
114{
115 memset(optval, 0, sizeof(*optval));
116 optval->value = ULLONG_MAX;
117 if (value == ULLONG_MAX)
118 optval->string = string;
119 else
120 optval->value = value;
121}
122#define bond_opt_initval(optval, value) __bond_opt_init(optval, NULL, value)
123#define bond_opt_initstr(optval, str) __bond_opt_init(optval, str, ULLONG_MAX)
124
125int bond_option_mode_set(struct bonding *bond, struct bond_opt_value *newval);
126int bond_option_pps_set(struct bonding *bond, struct bond_opt_value *newval);
127int bond_option_xmit_hash_policy_set(struct bonding *bond,
128 struct bond_opt_value *newval);
129int bond_option_arp_validate_set(struct bonding *bond,
130 struct bond_opt_value *newval);
131int bond_option_arp_all_targets_set(struct bonding *bond,
132 struct bond_opt_value *newval);
133int bond_option_fail_over_mac_set(struct bonding *bond,
134 struct bond_opt_value *newval);
135int bond_option_arp_interval_set(struct bonding *bond,
136 struct bond_opt_value *newval);
137int bond_option_arp_ip_targets_set(struct bonding *bond,
138 struct bond_opt_value *newval);
139void bond_option_arp_ip_targets_clear(struct bonding *bond);
140int bond_option_downdelay_set(struct bonding *bond,
141 struct bond_opt_value *newval);
142int bond_option_updelay_set(struct bonding *bond,
143 struct bond_opt_value *newval);
144int bond_option_lacp_rate_set(struct bonding *bond,
145 struct bond_opt_value *newval);
146int bond_option_min_links_set(struct bonding *bond,
147 struct bond_opt_value *newval);
148int bond_option_ad_select_set(struct bonding *bond,
149 struct bond_opt_value *newval);
150int bond_option_num_peer_notif_set(struct bonding *bond,
151 struct bond_opt_value *newval);
152int bond_option_miimon_set(struct bonding *bond, struct bond_opt_value *newval);
153int bond_option_primary_set(struct bonding *bond,
154 struct bond_opt_value *newval);
155int bond_option_primary_reselect_set(struct bonding *bond,
156 struct bond_opt_value *newval);
157int bond_option_use_carrier_set(struct bonding *bond,
158 struct bond_opt_value *newval);
159int bond_option_active_slave_set(struct bonding *bond,
160 struct bond_opt_value *newval);
161int bond_option_queue_id_set(struct bonding *bond,
162 struct bond_opt_value *newval);
163int bond_option_all_slaves_active_set(struct bonding *bond,
164 struct bond_opt_value *newval);
165int bond_option_resend_igmp_set(struct bonding *bond,
166 struct bond_opt_value *newval);
167int bond_option_lp_interval_set(struct bonding *bond,
168 struct bond_opt_value *newval);
169int bond_option_slaves_set(struct bonding *bond, struct bond_opt_value *newval);
170#endif /* _BOND_OPTIONS_H */