dc3e5d18f2
Introduce a generic option store function for sysfs and remove the specific ones. The attribute name is used to match against the option which is to be set. Also adjust the "name" of tlb_dynamic_lb option to match the sysfs entry and fix the comments and comment style in bond_sysfs.c The comments which showed obvious behaviour (i.e. behaviour that's seen in the option's entry) are removed, the ones that explained important points about the setting function have been moved above the respective set function in bond_options.c There's only 1 exception: num_unsol_na/num_grat_arp since it has 2 names CC: Jay Vosburgh <j.vosburgh@gmail.com> CC: Veaceslav Falico <vfalico@gmail.com> CC: Andy Gospodarek <andy@greyhouse.net> CC: David S. Miller <davem@davemloft.net> Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
131 lines
3.7 KiB
C
131 lines
3.7 KiB
C
/*
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* drivers/net/bond/bond_options.h - bonding options
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* Copyright (c) 2013 Nikolay Aleksandrov <nikolay@redhat.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef _BOND_OPTIONS_H
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#define _BOND_OPTIONS_H
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#define BOND_OPT_MAX_NAMELEN 32
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#define BOND_OPT_VALID(opt) ((opt) < BOND_OPT_LAST)
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#define BOND_MODE_ALL_EX(x) (~(x))
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/* Option flags:
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* BOND_OPTFLAG_NOSLAVES - check if the bond device is empty before setting
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* BOND_OPTFLAG_IFDOWN - check if the bond device is down before setting
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* BOND_OPTFLAG_RAWVAL - the option parses the value itself
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*/
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enum {
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BOND_OPTFLAG_NOSLAVES = BIT(0),
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BOND_OPTFLAG_IFDOWN = BIT(1),
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BOND_OPTFLAG_RAWVAL = BIT(2)
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};
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/* Value type flags:
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* BOND_VALFLAG_DEFAULT - mark the value as default
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* BOND_VALFLAG_(MIN|MAX) - mark the value as min/max
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*/
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enum {
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BOND_VALFLAG_DEFAULT = BIT(0),
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BOND_VALFLAG_MIN = BIT(1),
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BOND_VALFLAG_MAX = BIT(2)
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};
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/* Option IDs, their bit positions correspond to their IDs */
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enum {
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BOND_OPT_MODE,
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BOND_OPT_PACKETS_PER_SLAVE,
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BOND_OPT_XMIT_HASH,
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BOND_OPT_ARP_VALIDATE,
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BOND_OPT_ARP_ALL_TARGETS,
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BOND_OPT_FAIL_OVER_MAC,
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BOND_OPT_ARP_INTERVAL,
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BOND_OPT_ARP_TARGETS,
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BOND_OPT_DOWNDELAY,
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BOND_OPT_UPDELAY,
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BOND_OPT_LACP_RATE,
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BOND_OPT_MINLINKS,
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BOND_OPT_AD_SELECT,
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BOND_OPT_NUM_PEER_NOTIF,
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BOND_OPT_MIIMON,
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BOND_OPT_PRIMARY,
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BOND_OPT_PRIMARY_RESELECT,
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BOND_OPT_USE_CARRIER,
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BOND_OPT_ACTIVE_SLAVE,
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BOND_OPT_QUEUE_ID,
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BOND_OPT_ALL_SLAVES_ACTIVE,
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BOND_OPT_RESEND_IGMP,
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BOND_OPT_LP_INTERVAL,
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BOND_OPT_SLAVES,
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BOND_OPT_TLB_DYNAMIC_LB,
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BOND_OPT_LAST
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};
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/* This structure is used for storing option values and for passing option
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* values when changing an option. The logic when used as an arg is as follows:
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* - if string != NULL -> parse it, if the opt is RAW type then return it, else
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* return the parse result
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* - if string == NULL -> parse value
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*/
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struct bond_opt_value {
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char *string;
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u64 value;
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u32 flags;
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};
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struct bonding;
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struct bond_option {
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int id;
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const char *name;
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const char *desc;
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u32 flags;
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/* unsuppmodes is used to denote modes in which the option isn't
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* supported.
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*/
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unsigned long unsuppmodes;
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/* supported values which this option can have, can be a subset of
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* BOND_OPTVAL_RANGE's value range
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*/
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const struct bond_opt_value *values;
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int (*set)(struct bonding *bond, const struct bond_opt_value *val);
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};
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int __bond_opt_set(struct bonding *bond, unsigned int option,
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struct bond_opt_value *val);
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int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf);
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const struct bond_opt_value *bond_opt_parse(const struct bond_option *opt,
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struct bond_opt_value *val);
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const struct bond_option *bond_opt_get(unsigned int option);
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const struct bond_option *bond_opt_get_by_name(const char *name);
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const struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val);
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/* This helper is used to initialize a bond_opt_value structure for parameter
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* passing. There should be either a valid string or value, but not both.
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* When value is ULLONG_MAX then string will be used.
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*/
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static inline void __bond_opt_init(struct bond_opt_value *optval,
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char *string, u64 value)
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{
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memset(optval, 0, sizeof(*optval));
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optval->value = ULLONG_MAX;
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if (value == ULLONG_MAX)
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optval->string = string;
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else
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optval->value = value;
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}
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#define bond_opt_initval(optval, value) __bond_opt_init(optval, NULL, value)
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#define bond_opt_initstr(optval, str) __bond_opt_init(optval, str, ULLONG_MAX)
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void bond_option_arp_ip_targets_clear(struct bonding *bond);
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#endif /* _BOND_OPTIONS_H */
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