1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * drivers/net/bond/bond_options.h - bonding options 4 * Copyright (c) 2013 Nikolay Aleksandrov <nikolay@redhat.com> 5 */ 6 7 #ifndef _NET_BOND_OPTIONS_H 8 #define _NET_BOND_OPTIONS_H 9 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)) 13 14 /* Option flags: 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 18 */ 19 enum { 20 BOND_OPTFLAG_NOSLAVES = BIT(0), 21 BOND_OPTFLAG_IFDOWN = BIT(1), 22 BOND_OPTFLAG_RAWVAL = BIT(2) 23 }; 24 25 /* Value type flags: 26 * BOND_VALFLAG_DEFAULT - mark the value as default 27 * BOND_VALFLAG_(MIN|MAX) - mark the value as min/max 28 */ 29 enum { 30 BOND_VALFLAG_DEFAULT = BIT(0), 31 BOND_VALFLAG_MIN = BIT(1), 32 BOND_VALFLAG_MAX = BIT(2) 33 }; 34 35 /* Option IDs, their bit positions correspond to their IDs */ 36 enum { 37 BOND_OPT_MODE, 38 BOND_OPT_PACKETS_PER_SLAVE, 39 BOND_OPT_XMIT_HASH, 40 BOND_OPT_ARP_VALIDATE, 41 BOND_OPT_ARP_ALL_TARGETS, 42 BOND_OPT_FAIL_OVER_MAC, 43 BOND_OPT_ARP_INTERVAL, 44 BOND_OPT_ARP_TARGETS, 45 BOND_OPT_DOWNDELAY, 46 BOND_OPT_UPDELAY, 47 BOND_OPT_LACP_RATE, 48 BOND_OPT_MINLINKS, 49 BOND_OPT_AD_SELECT, 50 BOND_OPT_NUM_PEER_NOTIF, 51 BOND_OPT_MIIMON, 52 BOND_OPT_PRIMARY, 53 BOND_OPT_PRIMARY_RESELECT, 54 BOND_OPT_USE_CARRIER, 55 BOND_OPT_ACTIVE_SLAVE, 56 BOND_OPT_QUEUE_ID, 57 BOND_OPT_ALL_SLAVES_ACTIVE, 58 BOND_OPT_RESEND_IGMP, 59 BOND_OPT_LP_INTERVAL, 60 BOND_OPT_SLAVES, 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_LAST 67 }; 68 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 74 */ 75 struct bond_opt_value { 76 char *string; 77 u64 value; 78 u32 flags; 79 }; 80 81 struct bonding; 82 83 struct bond_option { 84 int id; 85 const char *name; 86 const char *desc; 87 u32 flags; 88 89 /* unsuppmodes is used to denote modes in which the option isn't 90 * supported. 91 */ 92 unsigned long unsuppmodes; 93 /* supported values which this option can have, can be a subset of 94 * BOND_OPTVAL_RANGE's value range 95 */ 96 const struct bond_opt_value *values; 97 98 int (*set)(struct bonding *bond, const struct bond_opt_value *val); 99 }; 100 101 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); 106 107 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); 112 113 /* 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. 116 */ 117 static inline void __bond_opt_init(struct bond_opt_value *optval, 118 char *string, u64 value) 119 { 120 memset(optval, 0, sizeof(*optval)); 121 optval->value = ULLONG_MAX; 122 if (value == ULLONG_MAX) 123 optval->string = string; 124 else 125 optval->value = value; 126 } 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) 129 130 void bond_option_arp_ip_targets_clear(struct bonding *bond); 131 132 #endif /* _NET_BOND_OPTIONS_H */ 133