/* * drivers/net/bond/bond_options.h - bonding options * Copyright (c) 2013 Nikolay Aleksandrov * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ #ifndef _BOND_OPTIONS_H #define _BOND_OPTIONS_H #define BOND_OPT_MAX_NAMELEN 32 #define BOND_OPT_VALID(opt) ((opt) < BOND_OPT_LAST) #define BOND_MODE_ALL_EX(x) (~(x)) /* Option flags: * BOND_OPTFLAG_NOSLAVES - check if the bond device is empty before setting * BOND_OPTFLAG_IFDOWN - check if the bond device is down before setting * BOND_OPTFLAG_RAWVAL - the option parses the value itself */ enum { BOND_OPTFLAG_NOSLAVES = BIT(0), BOND_OPTFLAG_IFDOWN = BIT(1), BOND_OPTFLAG_RAWVAL = BIT(2) }; /* Value type flags: * BOND_VALFLAG_DEFAULT - mark the value as default * BOND_VALFLAG_(MIN|MAX) - mark the value as min/max */ enum { BOND_VALFLAG_DEFAULT = BIT(0), BOND_VALFLAG_MIN = BIT(1), BOND_VALFLAG_MAX = BIT(2) }; /* Option IDs, their bit positions correspond to their IDs */ enum { BOND_OPT_MODE, BOND_OPT_PACKETS_PER_SLAVE, BOND_OPT_XMIT_HASH, BOND_OPT_ARP_VALIDATE, BOND_OPT_ARP_ALL_TARGETS, BOND_OPT_FAIL_OVER_MAC, BOND_OPT_ARP_INTERVAL, BOND_OPT_ARP_TARGETS, BOND_OPT_DOWNDELAY, BOND_OPT_UPDELAY, BOND_OPT_LACP_RATE, BOND_OPT_MINLINKS, BOND_OPT_AD_SELECT, BOND_OPT_NUM_PEER_NOTIF, BOND_OPT_MIIMON, BOND_OPT_PRIMARY, BOND_OPT_LAST }; /* This structure is used for storing option values and for passing option * values when changing an option. The logic when used as an arg is as follows: * - if string != NULL -> parse it, if the opt is RAW type then return it, else * return the parse result * - if string == NULL -> parse value */ struct bond_opt_value { char *string; u64 value; u32 flags; }; struct bonding; struct bond_option { int id; char *name; char *desc; u32 flags; /* unsuppmodes is used to denote modes in which the option isn't * supported. */ unsigned long unsuppmodes; /* supported values which this option can have, can be a subset of * BOND_OPTVAL_RANGE's value range */ struct bond_opt_value *values; int (*set)(struct bonding *bond, struct bond_opt_value *val); }; int __bond_opt_set(struct bonding *bond, unsigned int option, struct bond_opt_value *val); int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf); struct bond_opt_value *bond_opt_parse(const struct bond_option *opt, struct bond_opt_value *val); struct bond_option *bond_opt_get(unsigned int option); struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val); /* This helper is used to initialize a bond_opt_value structure for parameter * passing. There should be either a valid string or value, but not both. * When value is ULLONG_MAX then string will be used. */ static inline void __bond_opt_init(struct bond_opt_value *optval, char *string, u64 value) { memset(optval, 0, sizeof(*optval)); optval->value = ULLONG_MAX; if (value == ULLONG_MAX) optval->string = string; else optval->value = value; } #define bond_opt_initval(optval, value) __bond_opt_init(optval, NULL, value) #define bond_opt_initstr(optval, str) __bond_opt_init(optval, str, ULLONG_MAX) int bond_option_mode_set(struct bonding *bond, struct bond_opt_value *newval); int bond_option_pps_set(struct bonding *bond, struct bond_opt_value *newval); int bond_option_xmit_hash_policy_set(struct bonding *bond, struct bond_opt_value *newval); int bond_option_arp_validate_set(struct bonding *bond, struct bond_opt_value *newval); int bond_option_arp_all_targets_set(struct bonding *bond, struct bond_opt_value *newval); int bond_option_fail_over_mac_set(struct bonding *bond, struct bond_opt_value *newval); int bond_option_arp_interval_set(struct bonding *bond, struct bond_opt_value *newval); int bond_option_arp_ip_targets_set(struct bonding *bond, struct bond_opt_value *newval); void bond_option_arp_ip_targets_clear(struct bonding *bond); int bond_option_downdelay_set(struct bonding *bond, struct bond_opt_value *newval); int bond_option_updelay_set(struct bonding *bond, struct bond_opt_value *newval); int bond_option_lacp_rate_set(struct bonding *bond, struct bond_opt_value *newval); int bond_option_min_links_set(struct bonding *bond, struct bond_opt_value *newval); int bond_option_ad_select_set(struct bonding *bond, struct bond_opt_value *newval); int bond_option_num_peer_notif_set(struct bonding *bond, struct bond_opt_value *newval); int bond_option_miimon_set(struct bonding *bond, struct bond_opt_value *newval); int bond_option_primary_set(struct bonding *bond, struct bond_opt_value *newval); #endif /* _BOND_OPTIONS_H */