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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /include/net/bond_options.h
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/net/bond_options.h')
-rw-r--r--include/net/bond_options.h164
1 files changed, 164 insertions, 0 deletions
diff --git a/include/net/bond_options.h b/include/net/bond_options.h
new file mode 100644
index 0000000000..69292ecc03
--- /dev/null
+++ b/include/net/bond_options.h
@@ -0,0 +1,164 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * drivers/net/bond/bond_options.h - bonding options
+ * Copyright (c) 2013 Nikolay Aleksandrov <nikolay@redhat.com>
+ */
+
+#ifndef _NET_BOND_OPTIONS_H
+#define _NET_BOND_OPTIONS_H
+
+#include <linux/bits.h>
+#include <linux/limits.h>
+#include <linux/types.h>
+#include <linux/string.h>
+
+struct netlink_ext_ack;
+struct nlattr;
+
+#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_AD_ACTOR_SYS_PRIO,
+ BOND_OPT_AD_ACTOR_SYSTEM,
+ BOND_OPT_AD_USER_PORT_KEY,
+ BOND_OPT_NUM_PEER_NOTIF_ALIAS,
+ BOND_OPT_PEER_NOTIF_DELAY,
+ BOND_OPT_LACP_ACTIVE,
+ BOND_OPT_MISSED_MAX,
+ BOND_OPT_NS_TARGETS,
+ BOND_OPT_PRIO,
+ 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 value != ULLONG_MAX -> parse value
+ * - if string != NULL -> parse string
+ * - if the opt is RAW data and length less than maxlen,
+ * copy the data to extra storage
+ */
+
+#define BOND_OPT_EXTRA_MAXLEN 16
+struct bond_opt_value {
+ char *string;
+ u64 value;
+ u32 flags;
+ union {
+ char extra[BOND_OPT_EXTRA_MAXLEN];
+ struct net_device *slave_dev;
+ };
+};
+
+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,
+ struct nlattr *bad_attr, struct netlink_ext_ack *extack);
+int __bond_opt_set_notify(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,
+ void *extra, size_t extra_len)
+{
+ memset(optval, 0, sizeof(*optval));
+ optval->value = ULLONG_MAX;
+ if (value != ULLONG_MAX)
+ optval->value = value;
+ else if (string)
+ optval->string = string;
+
+ if (extra && extra_len <= BOND_OPT_EXTRA_MAXLEN)
+ memcpy(optval->extra, extra, extra_len);
+}
+#define bond_opt_initval(optval, value) __bond_opt_init(optval, NULL, value, NULL, 0)
+#define bond_opt_initstr(optval, str) __bond_opt_init(optval, str, ULLONG_MAX, NULL, 0)
+#define bond_opt_initextra(optval, extra, extra_len) \
+ __bond_opt_init(optval, NULL, ULLONG_MAX, extra, extra_len)
+#define bond_opt_slave_initval(optval, slave_dev, value) \
+ __bond_opt_init(optval, NULL, value, slave_dev, sizeof(struct net_device *))
+
+void bond_option_arp_ip_targets_clear(struct bonding *bond);
+#if IS_ENABLED(CONFIG_IPV6)
+void bond_option_ns_ip6_targets_clear(struct bonding *bond);
+#endif
+
+#endif /* _NET_BOND_OPTIONS_H */