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 _NET_BOND_OPTIONS_H 12 #define _NET_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 */ 23 enum { 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 */ 33 enum { 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 */ 40 enum { 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_TLB_DYNAMIC_LB, 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_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf); 104 105 const struct bond_opt_value *bond_opt_parse(const struct bond_option *opt, 106 struct bond_opt_value *val); 107 const struct bond_option *bond_opt_get(unsigned int option); 108 const struct bond_option *bond_opt_get_by_name(const char *name); 109 const struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val); 110 111 /* This helper is used to initialize a bond_opt_value structure for parameter 112 * passing. There should be either a valid string or value, but not both. 113 * When value is ULLONG_MAX then string will be used. 114 */ 115 static inline void __bond_opt_init(struct bond_opt_value *optval, 116 char *string, u64 value) 117 { 118 memset(optval, 0, sizeof(*optval)); 119 optval->value = ULLONG_MAX; 120 if (value == ULLONG_MAX) 121 optval->string = string; 122 else 123 optval->value = value; 124 } 125 #define bond_opt_initval(optval, value) __bond_opt_init(optval, NULL, value) 126 #define bond_opt_initstr(optval, str) __bond_opt_init(optval, str, ULLONG_MAX) 127 128 void bond_option_arp_ip_targets_clear(struct bonding *bond); 129 130 #endif /* _NET_BOND_OPTIONS_H */ 131