Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / net / bond_options.h

diff --git a/kernel/include/net/bond_options.h b/kernel/include/net/bond_options.h
new file mode 100644 (file)
index 0000000..ea6546d
--- /dev/null
+++ b/kernel/include/net/bond_options.h
@@ -0,0 +1,130 @@
+/*
+ * drivers/net/bond/bond_options.h - bonding options
+ * Copyright (c) 2013 Nikolay Aleksandrov <nikolay@redhat.com>
+ *
+ * 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 _NET_BOND_OPTIONS_H
+#define _NET_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_PRIMARY_RESELECT,
+       BOND_OPT_USE_CARRIER,
+       BOND_OPT_ACTIVE_SLAVE,
+       BOND_OPT_QUEUE_ID,
+       BOND_OPT_ALL_SLAVES_ACTIVE,
+       BOND_OPT_RESEND_IGMP,
+       BOND_OPT_LP_INTERVAL,
+       BOND_OPT_SLAVES,
+       BOND_OPT_TLB_DYNAMIC_LB,
+       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;
+       const char *name;
+       const 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
+        */
+       const struct bond_opt_value *values;
+
+       int (*set)(struct bonding *bond, const 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);
+
+const struct bond_opt_value *bond_opt_parse(const struct bond_option *opt,
+                                           struct bond_opt_value *val);
+const struct bond_option *bond_opt_get(unsigned int option);
+const struct bond_option *bond_opt_get_by_name(const char *name);
+const 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)
+
+void bond_option_arp_ip_targets_clear(struct bonding *bond);
+
+#endif /* _NET_BOND_OPTIONS_H */