net: Move bonding headers under include/net
This ways drivers like cxgb4 don't need to do ugly relative includes.
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/bond_3ad.h b/include/net/bond_3ad.h
new file mode 100644
index 0000000..e01d903
--- /dev/null
+++ b/include/net/bond_3ad.h
@@ -0,0 +1,283 @@
+/*
+ * Copyright(c) 1999 - 2004 Intel Corporation. All rights reserved.
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ */
+
+#ifndef _NET_BOND_3AD_H
+#define _NET_BOND_3AD_H
+
+#include <asm/byteorder.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/if_ether.h>
+
+/* General definitions */
+#define PKT_TYPE_LACPDU cpu_to_be16(ETH_P_SLOW)
+#define AD_TIMER_INTERVAL 100 /*msec*/
+
+#define MULTICAST_LACPDU_ADDR {0x01, 0x80, 0xC2, 0x00, 0x00, 0x02}
+
+#define AD_LACP_SLOW 0
+#define AD_LACP_FAST 1
+
+typedef struct mac_addr {
+ u8 mac_addr_value[ETH_ALEN];
+} __packed mac_addr_t;
+
+enum {
+ BOND_AD_STABLE = 0,
+ BOND_AD_BANDWIDTH = 1,
+ BOND_AD_COUNT = 2,
+};
+
+/* rx machine states(43.4.11 in the 802.3ad standard) */
+typedef enum {
+ AD_RX_DUMMY,
+ AD_RX_INITIALIZE, /* rx Machine */
+ AD_RX_PORT_DISABLED, /* rx Machine */
+ AD_RX_LACP_DISABLED, /* rx Machine */
+ AD_RX_EXPIRED, /* rx Machine */
+ AD_RX_DEFAULTED, /* rx Machine */
+ AD_RX_CURRENT /* rx Machine */
+} rx_states_t;
+
+/* periodic machine states(43.4.12 in the 802.3ad standard) */
+typedef enum {
+ AD_PERIODIC_DUMMY,
+ AD_NO_PERIODIC, /* periodic machine */
+ AD_FAST_PERIODIC, /* periodic machine */
+ AD_SLOW_PERIODIC, /* periodic machine */
+ AD_PERIODIC_TX /* periodic machine */
+} periodic_states_t;
+
+/* mux machine states(43.4.13 in the 802.3ad standard) */
+typedef enum {
+ AD_MUX_DUMMY,
+ AD_MUX_DETACHED, /* mux machine */
+ AD_MUX_WAITING, /* mux machine */
+ AD_MUX_ATTACHED, /* mux machine */
+ AD_MUX_COLLECTING_DISTRIBUTING /* mux machine */
+} mux_states_t;
+
+/* tx machine states(43.4.15 in the 802.3ad standard) */
+typedef enum {
+ AD_TX_DUMMY,
+ AD_TRANSMIT /* tx Machine */
+} tx_states_t;
+
+/* rx indication types */
+typedef enum {
+ AD_TYPE_LACPDU = 1, /* type lacpdu */
+ AD_TYPE_MARKER /* type marker */
+} pdu_type_t;
+
+/* rx marker indication types */
+typedef enum {
+ AD_MARKER_INFORMATION_SUBTYPE = 1, /* marker imformation subtype */
+ AD_MARKER_RESPONSE_SUBTYPE /* marker response subtype */
+} bond_marker_subtype_t;
+
+/* timers types(43.4.9 in the 802.3ad standard) */
+typedef enum {
+ AD_CURRENT_WHILE_TIMER,
+ AD_ACTOR_CHURN_TIMER,
+ AD_PERIODIC_TIMER,
+ AD_PARTNER_CHURN_TIMER,
+ AD_WAIT_WHILE_TIMER
+} ad_timers_t;
+
+#pragma pack(1)
+
+/* Link Aggregation Control Protocol(LACP) data unit structure(43.4.2.2 in the 802.3ad standard) */
+typedef struct lacpdu {
+ u8 subtype; /* = LACP(= 0x01) */
+ u8 version_number;
+ u8 tlv_type_actor_info; /* = actor information(type/length/value) */
+ u8 actor_information_length; /* = 20 */
+ __be16 actor_system_priority;
+ struct mac_addr actor_system;
+ __be16 actor_key;
+ __be16 actor_port_priority;
+ __be16 actor_port;
+ u8 actor_state;
+ u8 reserved_3_1[3]; /* = 0 */
+ u8 tlv_type_partner_info; /* = partner information */
+ u8 partner_information_length; /* = 20 */
+ __be16 partner_system_priority;
+ struct mac_addr partner_system;
+ __be16 partner_key;
+ __be16 partner_port_priority;
+ __be16 partner_port;
+ u8 partner_state;
+ u8 reserved_3_2[3]; /* = 0 */
+ u8 tlv_type_collector_info; /* = collector information */
+ u8 collector_information_length;/* = 16 */
+ __be16 collector_max_delay;
+ u8 reserved_12[12];
+ u8 tlv_type_terminator; /* = terminator */
+ u8 terminator_length; /* = 0 */
+ u8 reserved_50[50]; /* = 0 */
+} __packed lacpdu_t;
+
+typedef struct lacpdu_header {
+ struct ethhdr hdr;
+ struct lacpdu lacpdu;
+} __packed lacpdu_header_t;
+
+/* Marker Protocol Data Unit(PDU) structure(43.5.3.2 in the 802.3ad standard) */
+typedef struct bond_marker {
+ u8 subtype; /* = 0x02 (marker PDU) */
+ u8 version_number; /* = 0x01 */
+ u8 tlv_type; /* = 0x01 (marker information) */
+ /* = 0x02 (marker response information) */
+ u8 marker_length; /* = 0x16 */
+ u16 requester_port; /* The number assigned to the port by the requester */
+ struct mac_addr requester_system; /* The requester's system id */
+ u32 requester_transaction_id; /* The transaction id allocated by the requester, */
+ u16 pad; /* = 0 */
+ u8 tlv_type_terminator; /* = 0x00 */
+ u8 terminator_length; /* = 0x00 */
+ u8 reserved_90[90]; /* = 0 */
+} __packed bond_marker_t;
+
+typedef struct bond_marker_header {
+ struct ethhdr hdr;
+ struct bond_marker marker;
+} __packed bond_marker_header_t;
+
+#pragma pack()
+
+struct slave;
+struct bonding;
+struct ad_info;
+struct port;
+
+#ifdef __ia64__
+#pragma pack(8)
+#endif
+
+/* aggregator structure(43.4.5 in the 802.3ad standard) */
+typedef struct aggregator {
+ struct mac_addr aggregator_mac_address;
+ u16 aggregator_identifier;
+ bool is_individual;
+ u16 actor_admin_aggregator_key;
+ u16 actor_oper_aggregator_key;
+ struct mac_addr partner_system;
+ u16 partner_system_priority;
+ u16 partner_oper_aggregator_key;
+ u16 receive_state; /* BOOLEAN */
+ u16 transmit_state; /* BOOLEAN */
+ struct port *lag_ports;
+ /* ****** PRIVATE PARAMETERS ****** */
+ struct slave *slave; /* pointer to the bond slave that this aggregator belongs to */
+ u16 is_active; /* BOOLEAN. Indicates if this aggregator is active */
+ u16 num_of_ports;
+} aggregator_t;
+
+struct port_params {
+ struct mac_addr system;
+ u16 system_priority;
+ u16 key;
+ u16 port_number;
+ u16 port_priority;
+ u16 port_state;
+};
+
+/* port structure(43.4.6 in the 802.3ad standard) */
+typedef struct port {
+ u16 actor_port_number;
+ u16 actor_port_priority;
+ struct mac_addr actor_system; /* This parameter is added here although it is not specified in the standard, just for simplification */
+ u16 actor_system_priority; /* This parameter is added here although it is not specified in the standard, just for simplification */
+ u16 actor_port_aggregator_identifier;
+ bool ntt;
+ u16 actor_admin_port_key;
+ u16 actor_oper_port_key;
+ u8 actor_admin_port_state;
+ u8 actor_oper_port_state;
+
+ struct port_params partner_admin;
+ struct port_params partner_oper;
+
+ bool is_enabled;
+
+ /* ****** PRIVATE PARAMETERS ****** */
+ u16 sm_vars; /* all state machines variables for this port */
+ rx_states_t sm_rx_state; /* state machine rx state */
+ u16 sm_rx_timer_counter; /* state machine rx timer counter */
+ periodic_states_t sm_periodic_state; /* state machine periodic state */
+ u16 sm_periodic_timer_counter; /* state machine periodic timer counter */
+ mux_states_t sm_mux_state; /* state machine mux state */
+ u16 sm_mux_timer_counter; /* state machine mux timer counter */
+ tx_states_t sm_tx_state; /* state machine tx state */
+ u16 sm_tx_timer_counter; /* state machine tx timer counter(allways on - enter to transmit state 3 time per second) */
+ struct slave *slave; /* pointer to the bond slave that this port belongs to */
+ struct aggregator *aggregator; /* pointer to an aggregator that this port related to */
+ struct port *next_port_in_aggregator; /* Next port on the linked list of the parent aggregator */
+ u32 transaction_id; /* continuous number for identification of Marker PDU's; */
+ struct lacpdu lacpdu; /* the lacpdu that will be sent for this port */
+} port_t;
+
+/* system structure */
+struct ad_system {
+ u16 sys_priority;
+ struct mac_addr sys_mac_addr;
+};
+
+#ifdef __ia64__
+#pragma pack()
+#endif
+
+/* ========== AD Exported structures to the main bonding code ========== */
+#define BOND_AD_INFO(bond) ((bond)->ad_info)
+#define SLAVE_AD_INFO(slave) ((slave)->ad_info)
+
+struct ad_bond_info {
+ struct ad_system system; /* 802.3ad system structure */
+ u32 agg_select_timer; /* Timer to select aggregator after all adapter's hand shakes */
+ u16 aggregator_identifier;
+};
+
+struct ad_slave_info {
+ struct aggregator aggregator; /* 802.3ad aggregator structure */
+ struct port port; /* 802.3ad port structure */
+ u16 id;
+};
+
+/* ========== AD Exported functions to the main bonding code ========== */
+void bond_3ad_initialize(struct bonding *bond, u16 tick_resolution);
+void bond_3ad_bind_slave(struct slave *slave);
+void bond_3ad_unbind_slave(struct slave *slave);
+void bond_3ad_state_machine_handler(struct work_struct *);
+void bond_3ad_initiate_agg_selection(struct bonding *bond, int timeout);
+void bond_3ad_adapter_speed_changed(struct slave *slave);
+void bond_3ad_adapter_duplex_changed(struct slave *slave);
+void bond_3ad_handle_link_change(struct slave *slave, char link);
+int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info);
+int __bond_3ad_get_active_agg_info(struct bonding *bond,
+ struct ad_info *ad_info);
+int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev);
+int bond_3ad_lacpdu_recv(const struct sk_buff *skb, struct bonding *bond,
+ struct slave *slave);
+int bond_3ad_set_carrier(struct bonding *bond);
+void bond_3ad_update_lacp_rate(struct bonding *bond);
+#endif /* _NET_BOND_3AD_H */
+
diff --git a/include/net/bond_alb.h b/include/net/bond_alb.h
new file mode 100644
index 0000000..313a8d3
--- /dev/null
+++ b/include/net/bond_alb.h
@@ -0,0 +1,181 @@
+/*
+ * Copyright(c) 1999 - 2004 Intel Corporation. All rights reserved.
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ */
+
+#ifndef _NET_BOND_ALB_H
+#define _NET_BOND_ALB_H
+
+#include <linux/if_ether.h>
+
+struct bonding;
+struct slave;
+
+#define BOND_ALB_INFO(bond) ((bond)->alb_info)
+#define SLAVE_TLB_INFO(slave) ((slave)->tlb_info)
+
+#define ALB_TIMER_TICKS_PER_SEC 10 /* should be a divisor of HZ */
+#define BOND_TLB_REBALANCE_INTERVAL 10 /* In seconds, periodic re-balancing.
+ * Used for division - never set
+ * to zero !!!
+ */
+#define BOND_ALB_DEFAULT_LP_INTERVAL 1
+#define BOND_ALB_LP_INTERVAL(bond) (bond->params.lp_interval) /* In seconds, periodic send of
+ * learning packets to the switch
+ */
+
+#define BOND_TLB_REBALANCE_TICKS (BOND_TLB_REBALANCE_INTERVAL \
+ * ALB_TIMER_TICKS_PER_SEC)
+
+#define BOND_ALB_LP_TICKS(bond) (BOND_ALB_LP_INTERVAL(bond) \
+ * ALB_TIMER_TICKS_PER_SEC)
+
+#define TLB_HASH_TABLE_SIZE 256 /* The size of the clients hash table.
+ * Note that this value MUST NOT be smaller
+ * because the key hash table is BYTE wide !
+ */
+
+
+#define TLB_NULL_INDEX 0xffffffff
+
+/* rlb defs */
+#define RLB_HASH_TABLE_SIZE 256
+#define RLB_NULL_INDEX 0xffffffff
+#define RLB_UPDATE_DELAY (2*ALB_TIMER_TICKS_PER_SEC) /* 2 seconds */
+#define RLB_ARP_BURST_SIZE 2
+#define RLB_UPDATE_RETRY 3 /* 3-ticks - must be smaller than the rlb
+ * rebalance interval (5 min).
+ */
+/* RLB_PROMISC_TIMEOUT = 10 sec equals the time that the current slave is
+ * promiscuous after failover
+ */
+#define RLB_PROMISC_TIMEOUT (10*ALB_TIMER_TICKS_PER_SEC)
+
+
+struct tlb_client_info {
+ struct slave *tx_slave; /* A pointer to slave used for transmiting
+ * packets to a Client that the Hash function
+ * gave this entry index.
+ */
+ u32 tx_bytes; /* Each Client accumulates the BytesTx that
+ * were transmitted to it, and after each
+ * CallBack the LoadHistory is divided
+ * by the balance interval
+ */
+ u32 load_history; /* This field contains the amount of Bytes
+ * that were transmitted to this client by
+ * the server on the previous balance
+ * interval in Bps.
+ */
+ u32 next; /* The next Hash table entry index, assigned
+ * to use the same adapter for transmit.
+ */
+ u32 prev; /* The previous Hash table entry index,
+ * assigned to use the same
+ */
+};
+
+/* -------------------------------------------------------------------------
+ * struct rlb_client_info contains all info related to a specific rx client
+ * connection. This is the Clients Hash Table entry struct.
+ * Note that this is not a proper hash table; if a new client's IP address
+ * hash collides with an existing client entry, the old entry is replaced.
+ *
+ * There is a linked list (linked by the used_next and used_prev members)
+ * linking all the used entries of the hash table. This allows updating
+ * all the clients without walking over all the unused elements of the table.
+ *
+ * There are also linked lists of entries with identical hash(ip_src). These
+ * allow cleaning up the table from ip_src<->mac_src associations that have
+ * become outdated and would cause sending out invalid ARP updates to the
+ * network. These are linked by the (src_next and src_prev members).
+ * -------------------------------------------------------------------------
+ */
+struct rlb_client_info {
+ __be32 ip_src; /* the server IP address */
+ __be32 ip_dst; /* the client IP address */
+ u8 mac_src[ETH_ALEN]; /* the server MAC address */
+ u8 mac_dst[ETH_ALEN]; /* the client MAC address */
+
+ /* list of used hash table entries, starting at rx_hashtbl_used_head */
+ u32 used_next;
+ u32 used_prev;
+
+ /* ip_src based hashing */
+ u32 src_next; /* next entry with same hash(ip_src) */
+ u32 src_prev; /* prev entry with same hash(ip_src) */
+ u32 src_first; /* first entry with hash(ip_src) == this entry's index */
+
+ u8 assigned; /* checking whether this entry is assigned */
+ u8 ntt; /* flag - need to transmit client info */
+ struct slave *slave; /* the slave assigned to this client */
+ unsigned short vlan_id; /* VLAN tag associated with IP address */
+};
+
+struct tlb_slave_info {
+ u32 head; /* Index to the head of the bi-directional clients
+ * hash table entries list. The entries in the list
+ * are the entries that were assigned to use this
+ * slave for transmit.
+ */
+ u32 load; /* Each slave sums the loadHistory of all clients
+ * assigned to it
+ */
+};
+
+struct alb_bond_info {
+ struct tlb_client_info *tx_hashtbl; /* Dynamically allocated */
+ u32 unbalanced_load;
+ int tx_rebalance_counter;
+ int lp_counter;
+ /* -------- rlb parameters -------- */
+ int rlb_enabled;
+ struct rlb_client_info *rx_hashtbl; /* Receive hash table */
+ u32 rx_hashtbl_used_head;
+ u8 rx_ntt; /* flag - need to transmit
+ * to all rx clients
+ */
+ struct slave *rx_slave;/* last slave to xmit from */
+ u8 primary_is_promisc; /* boolean */
+ u32 rlb_promisc_timeout_counter;/* counts primary
+ * promiscuity time
+ */
+ u32 rlb_update_delay_counter;
+ u32 rlb_update_retry_counter;/* counter of retries
+ * of client update
+ */
+ u8 rlb_rebalance; /* flag - indicates that the
+ * rx traffic should be
+ * rebalanced
+ */
+};
+
+int bond_alb_initialize(struct bonding *bond, int rlb_enabled);
+void bond_alb_deinitialize(struct bonding *bond);
+int bond_alb_init_slave(struct bonding *bond, struct slave *slave);
+void bond_alb_deinit_slave(struct bonding *bond, struct slave *slave);
+void bond_alb_handle_link_change(struct bonding *bond, struct slave *slave, char link);
+void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave);
+int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev);
+int bond_tlb_xmit(struct sk_buff *skb, struct net_device *bond_dev);
+void bond_alb_monitor(struct work_struct *);
+int bond_alb_set_mac_address(struct net_device *bond_dev, void *addr);
+void bond_alb_clear_vlan(struct bonding *bond, unsigned short vlan_id);
+#endif /* _NET_BOND_ALB_H */
+
diff --git a/include/net/bond_options.h b/include/net/bond_options.h
new file mode 100644
index 0000000..ea6546d
--- /dev/null
+++ b/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 */
diff --git a/include/net/bonding.h b/include/net/bonding.h
new file mode 100644
index 0000000..983a94b
--- /dev/null
+++ b/include/net/bonding.h
@@ -0,0 +1,654 @@
+/*
+ * Bond several ethernet interfaces into a Cisco, running 'Etherchannel'.
+ *
+ * Portions are (c) Copyright 1995 Simon "Guru Aleph-Null" Janes
+ * NCM: Network and Communications Management, Inc.
+ *
+ * BUT, I'm the one who modified it for ethernet, so:
+ * (c) Copyright 1999, Thomas Davis, tadavis@lbl.gov
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU Public License, incorporated herein by reference.
+ *
+ */
+
+#ifndef _NET_BONDING_H
+#define _NET_BONDING_H
+
+#include <linux/timer.h>
+#include <linux/proc_fs.h>
+#include <linux/if_bonding.h>
+#include <linux/cpumask.h>
+#include <linux/in6.h>
+#include <linux/netpoll.h>
+#include <linux/inetdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/reciprocal_div.h>
+#include <linux/if_link.h>
+
+#include <net/bond_3ad.h>
+#include <net/bond_alb.h>
+#include <net/bond_options.h>
+
+#define DRV_VERSION "3.7.1"
+#define DRV_RELDATE "April 27, 2011"
+#define DRV_NAME "bonding"
+#define DRV_DESCRIPTION "Ethernet Channel Bonding Driver"
+
+#define bond_version DRV_DESCRIPTION ": v" DRV_VERSION " (" DRV_RELDATE ")\n"
+
+#define BOND_MAX_ARP_TARGETS 16
+
+#define BOND_DEFAULT_MIIMON 100
+
+/*
+ * Less bad way to call ioctl from within the kernel; this needs to be
+ * done some other way to get the call out of interrupt context.
+ * Needs "ioctl" variable to be supplied by calling context.
+ */
+#define IOCTL(dev, arg, cmd) ({ \
+ int res = 0; \
+ mm_segment_t fs = get_fs(); \
+ set_fs(get_ds()); \
+ res = ioctl(dev, arg, cmd); \
+ set_fs(fs); \
+ res; })
+
+#define BOND_MODE(bond) ((bond)->params.mode)
+
+/* slave list primitives */
+#define bond_slave_list(bond) (&(bond)->dev->adj_list.lower)
+
+#define bond_has_slaves(bond) !list_empty(bond_slave_list(bond))
+
+/* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */
+#define bond_first_slave(bond) \
+ (bond_has_slaves(bond) ? \
+ netdev_adjacent_get_private(bond_slave_list(bond)->next) : \
+ NULL)
+#define bond_last_slave(bond) \
+ (bond_has_slaves(bond) ? \
+ netdev_adjacent_get_private(bond_slave_list(bond)->prev) : \
+ NULL)
+
+/* Caller must have rcu_read_lock */
+#define bond_first_slave_rcu(bond) \
+ netdev_lower_get_first_private_rcu(bond->dev)
+
+#define bond_is_first_slave(bond, pos) (pos == bond_first_slave(bond))
+#define bond_is_last_slave(bond, pos) (pos == bond_last_slave(bond))
+
+/**
+ * bond_for_each_slave - iterate over all slaves
+ * @bond: the bond holding this list
+ * @pos: current slave
+ * @iter: list_head * iterator
+ *
+ * Caller must hold RTNL
+ */
+#define bond_for_each_slave(bond, pos, iter) \
+ netdev_for_each_lower_private((bond)->dev, pos, iter)
+
+/* Caller must have rcu_read_lock */
+#define bond_for_each_slave_rcu(bond, pos, iter) \
+ netdev_for_each_lower_private_rcu((bond)->dev, pos, iter)
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+extern atomic_t netpoll_block_tx;
+
+static inline void block_netpoll_tx(void)
+{
+ atomic_inc(&netpoll_block_tx);
+}
+
+static inline void unblock_netpoll_tx(void)
+{
+ atomic_dec(&netpoll_block_tx);
+}
+
+static inline int is_netpoll_tx_blocked(struct net_device *dev)
+{
+ if (unlikely(netpoll_tx_running(dev)))
+ return atomic_read(&netpoll_block_tx);
+ return 0;
+}
+#else
+#define block_netpoll_tx()
+#define unblock_netpoll_tx()
+#define is_netpoll_tx_blocked(dev) (0)
+#endif
+
+struct bond_params {
+ int mode;
+ int xmit_policy;
+ int miimon;
+ u8 num_peer_notif;
+ int arp_interval;
+ int arp_validate;
+ int arp_all_targets;
+ int use_carrier;
+ int fail_over_mac;
+ int updelay;
+ int downdelay;
+ int lacp_fast;
+ unsigned int min_links;
+ int ad_select;
+ char primary[IFNAMSIZ];
+ int primary_reselect;
+ __be32 arp_targets[BOND_MAX_ARP_TARGETS];
+ int tx_queues;
+ int all_slaves_active;
+ int resend_igmp;
+ int lp_interval;
+ int packets_per_slave;
+ int tlb_dynamic_lb;
+ struct reciprocal_value reciprocal_packets_per_slave;
+};
+
+struct bond_parm_tbl {
+ char *modename;
+ int mode;
+};
+
+struct slave {
+ struct net_device *dev; /* first - useful for panic debug */
+ struct bonding *bond; /* our master */
+ int delay;
+ /* all three in jiffies */
+ unsigned long last_link_up;
+ unsigned long last_rx;
+ unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS];
+ s8 link; /* one of BOND_LINK_XXXX */
+ s8 new_link;
+ u8 backup:1, /* indicates backup slave. Value corresponds with
+ BOND_STATE_ACTIVE and BOND_STATE_BACKUP */
+ inactive:1, /* indicates inactive slave */
+ should_notify:1; /* indicateds whether the state changed */
+ u8 duplex;
+ u32 original_mtu;
+ u32 link_failure_count;
+ u32 speed;
+ u16 queue_id;
+ u8 perm_hwaddr[ETH_ALEN];
+ struct ad_slave_info *ad_info;
+ struct tlb_slave_info tlb_info;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ struct netpoll *np;
+#endif
+ struct kobject kobj;
+ struct rtnl_link_stats64 slave_stats;
+};
+
+struct bond_up_slave {
+ unsigned int count;
+ struct rcu_head rcu;
+ struct slave *arr[0];
+};
+
+/*
+ * Link pseudo-state only used internally by monitors
+ */
+#define BOND_LINK_NOCHANGE -1
+
+/*
+ * Here are the locking policies for the two bonding locks:
+ * Get rcu_read_lock when reading or RTNL when writing slave list.
+ */
+struct bonding {
+ struct net_device *dev; /* first - useful for panic debug */
+ struct slave __rcu *curr_active_slave;
+ struct slave __rcu *current_arp_slave;
+ struct slave __rcu *primary_slave;
+ struct bond_up_slave __rcu *slave_arr; /* Array of usable slaves */
+ bool force_primary;
+ s32 slave_cnt; /* never change this value outside the attach/detach wrappers */
+ int (*recv_probe)(const struct sk_buff *, struct bonding *,
+ struct slave *);
+ /* mode_lock is used for mode-specific locking needs, currently used by:
+ * 3ad mode (4) - protect against running bond_3ad_unbind_slave() and
+ * bond_3ad_state_machine_handler() concurrently and also
+ * the access to the state machine shared variables.
+ * TLB mode (5) - to sync the use and modifications of its hash table
+ * ALB mode (6) - to sync the use and modifications of its hash table
+ */
+ spinlock_t mode_lock;
+ u8 send_peer_notif;
+ u8 igmp_retrans;
+#ifdef CONFIG_PROC_FS
+ struct proc_dir_entry *proc_entry;
+ char proc_file_name[IFNAMSIZ];
+#endif /* CONFIG_PROC_FS */
+ struct list_head bond_list;
+ u32 rr_tx_counter;
+ struct ad_bond_info ad_info;
+ struct alb_bond_info alb_info;
+ struct bond_params params;
+ struct workqueue_struct *wq;
+ struct delayed_work mii_work;
+ struct delayed_work arp_work;
+ struct delayed_work alb_work;
+ struct delayed_work ad_work;
+ struct delayed_work mcast_work;
+ struct delayed_work slave_arr_work;
+#ifdef CONFIG_DEBUG_FS
+ /* debugging support via debugfs */
+ struct dentry *debug_dir;
+#endif /* CONFIG_DEBUG_FS */
+ struct rtnl_link_stats64 bond_stats;
+};
+
+#define bond_slave_get_rcu(dev) \
+ ((struct slave *) rcu_dereference(dev->rx_handler_data))
+
+#define bond_slave_get_rtnl(dev) \
+ ((struct slave *) rtnl_dereference(dev->rx_handler_data))
+
+struct bond_vlan_tag {
+ __be16 vlan_proto;
+ unsigned short vlan_id;
+};
+
+/**
+ * Returns NULL if the net_device does not belong to any of the bond's slaves
+ *
+ * Caller must hold bond lock for read
+ */
+static inline struct slave *bond_get_slave_by_dev(struct bonding *bond,
+ struct net_device *slave_dev)
+{
+ return netdev_lower_dev_get_private(bond->dev, slave_dev);
+}
+
+static inline struct bonding *bond_get_bond_by_slave(struct slave *slave)
+{
+ return slave->bond;
+}
+
+static inline bool bond_should_override_tx_queue(struct bonding *bond)
+{
+ return BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP ||
+ BOND_MODE(bond) == BOND_MODE_ROUNDROBIN;
+}
+
+static inline bool bond_is_lb(const struct bonding *bond)
+{
+ return BOND_MODE(bond) == BOND_MODE_TLB ||
+ BOND_MODE(bond) == BOND_MODE_ALB;
+}
+
+static inline bool bond_is_nondyn_tlb(const struct bonding *bond)
+{
+ return (BOND_MODE(bond) == BOND_MODE_TLB) &&
+ (bond->params.tlb_dynamic_lb == 0);
+}
+
+static inline bool bond_mode_uses_xmit_hash(const struct bonding *bond)
+{
+ return (BOND_MODE(bond) == BOND_MODE_8023AD ||
+ BOND_MODE(bond) == BOND_MODE_XOR ||
+ bond_is_nondyn_tlb(bond));
+}
+
+static inline bool bond_mode_uses_arp(int mode)
+{
+ return mode != BOND_MODE_8023AD && mode != BOND_MODE_TLB &&
+ mode != BOND_MODE_ALB;
+}
+
+static inline bool bond_mode_uses_primary(int mode)
+{
+ return mode == BOND_MODE_ACTIVEBACKUP || mode == BOND_MODE_TLB ||
+ mode == BOND_MODE_ALB;
+}
+
+static inline bool bond_uses_primary(struct bonding *bond)
+{
+ return bond_mode_uses_primary(BOND_MODE(bond));
+}
+
+static inline bool bond_slave_is_up(struct slave *slave)
+{
+ return netif_running(slave->dev) && netif_carrier_ok(slave->dev);
+}
+
+static inline void bond_set_active_slave(struct slave *slave)
+{
+ if (slave->backup) {
+ slave->backup = 0;
+ rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC);
+ }
+}
+
+static inline void bond_set_backup_slave(struct slave *slave)
+{
+ if (!slave->backup) {
+ slave->backup = 1;
+ rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC);
+ }
+}
+
+static inline void bond_set_slave_state(struct slave *slave,
+ int slave_state, bool notify)
+{
+ if (slave->backup == slave_state)
+ return;
+
+ slave->backup = slave_state;
+ if (notify) {
+ rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC);
+ slave->should_notify = 0;
+ } else {
+ if (slave->should_notify)
+ slave->should_notify = 0;
+ else
+ slave->should_notify = 1;
+ }
+}
+
+static inline void bond_slave_state_change(struct bonding *bond)
+{
+ struct list_head *iter;
+ struct slave *tmp;
+
+ bond_for_each_slave(bond, tmp, iter) {
+ if (tmp->link == BOND_LINK_UP)
+ bond_set_active_slave(tmp);
+ else if (tmp->link == BOND_LINK_DOWN)
+ bond_set_backup_slave(tmp);
+ }
+}
+
+static inline void bond_slave_state_notify(struct bonding *bond)
+{
+ struct list_head *iter;
+ struct slave *tmp;
+
+ bond_for_each_slave(bond, tmp, iter) {
+ if (tmp->should_notify) {
+ rtmsg_ifinfo(RTM_NEWLINK, tmp->dev, 0, GFP_ATOMIC);
+ tmp->should_notify = 0;
+ }
+ }
+}
+
+static inline int bond_slave_state(struct slave *slave)
+{
+ return slave->backup;
+}
+
+static inline bool bond_is_active_slave(struct slave *slave)
+{
+ return !bond_slave_state(slave);
+}
+
+static inline bool bond_slave_can_tx(struct slave *slave)
+{
+ return bond_slave_is_up(slave) && slave->link == BOND_LINK_UP &&
+ bond_is_active_slave(slave);
+}
+
+#define BOND_PRI_RESELECT_ALWAYS 0
+#define BOND_PRI_RESELECT_BETTER 1
+#define BOND_PRI_RESELECT_FAILURE 2
+
+#define BOND_FOM_NONE 0
+#define BOND_FOM_ACTIVE 1
+#define BOND_FOM_FOLLOW 2
+
+#define BOND_ARP_TARGETS_ANY 0
+#define BOND_ARP_TARGETS_ALL 1
+
+#define BOND_ARP_VALIDATE_NONE 0
+#define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE)
+#define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP)
+#define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE | \
+ BOND_ARP_VALIDATE_BACKUP)
+#define BOND_ARP_FILTER (BOND_ARP_VALIDATE_ALL + 1)
+#define BOND_ARP_FILTER_ACTIVE (BOND_ARP_VALIDATE_ACTIVE | \
+ BOND_ARP_FILTER)
+#define BOND_ARP_FILTER_BACKUP (BOND_ARP_VALIDATE_BACKUP | \
+ BOND_ARP_FILTER)
+
+#define BOND_SLAVE_NOTIFY_NOW true
+#define BOND_SLAVE_NOTIFY_LATER false
+
+static inline int slave_do_arp_validate(struct bonding *bond,
+ struct slave *slave)
+{
+ return bond->params.arp_validate & (1 << bond_slave_state(slave));
+}
+
+static inline int slave_do_arp_validate_only(struct bonding *bond)
+{
+ return bond->params.arp_validate & BOND_ARP_FILTER;
+}
+
+static inline int bond_is_ip_target_ok(__be32 addr)
+{
+ return !ipv4_is_lbcast(addr) && !ipv4_is_zeronet(addr);
+}
+
+/* Get the oldest arp which we've received on this slave for bond's
+ * arp_targets.
+ */
+static inline unsigned long slave_oldest_target_arp_rx(struct bonding *bond,
+ struct slave *slave)
+{
+ int i = 1;
+ unsigned long ret = slave->target_last_arp_rx[0];
+
+ for (; (i < BOND_MAX_ARP_TARGETS) && bond->params.arp_targets[i]; i++)
+ if (time_before(slave->target_last_arp_rx[i], ret))
+ ret = slave->target_last_arp_rx[i];
+
+ return ret;
+}
+
+static inline unsigned long slave_last_rx(struct bonding *bond,
+ struct slave *slave)
+{
+ if (bond->params.arp_all_targets == BOND_ARP_TARGETS_ALL)
+ return slave_oldest_target_arp_rx(bond, slave);
+
+ return slave->last_rx;
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static inline void bond_netpoll_send_skb(const struct slave *slave,
+ struct sk_buff *skb)
+{
+ struct netpoll *np = slave->np;
+
+ if (np)
+ netpoll_send_skb(np, skb);
+}
+#else
+static inline void bond_netpoll_send_skb(const struct slave *slave,
+ struct sk_buff *skb)
+{
+}
+#endif
+
+static inline void bond_set_slave_inactive_flags(struct slave *slave,
+ bool notify)
+{
+ if (!bond_is_lb(slave->bond))
+ bond_set_slave_state(slave, BOND_STATE_BACKUP, notify);
+ if (!slave->bond->params.all_slaves_active)
+ slave->inactive = 1;
+}
+
+static inline void bond_set_slave_active_flags(struct slave *slave,
+ bool notify)
+{
+ bond_set_slave_state(slave, BOND_STATE_ACTIVE, notify);
+ slave->inactive = 0;
+}
+
+static inline bool bond_is_slave_inactive(struct slave *slave)
+{
+ return slave->inactive;
+}
+
+static inline __be32 bond_confirm_addr(struct net_device *dev, __be32 dst, __be32 local)
+{
+ struct in_device *in_dev;
+ __be32 addr = 0;
+
+ rcu_read_lock();
+ in_dev = __in_dev_get_rcu(dev);
+
+ if (in_dev)
+ addr = inet_confirm_addr(dev_net(dev), in_dev, dst, local,
+ RT_SCOPE_HOST);
+ rcu_read_unlock();
+ return addr;
+}
+
+struct bond_net {
+ struct net *net; /* Associated network namespace */
+ struct list_head dev_list;
+#ifdef CONFIG_PROC_FS
+ struct proc_dir_entry *proc_dir;
+#endif
+ struct class_attribute class_attr_bonding_masters;
+};
+
+int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, struct slave *slave);
+void bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev);
+int bond_create(struct net *net, const char *name);
+int bond_create_sysfs(struct bond_net *net);
+void bond_destroy_sysfs(struct bond_net *net);
+void bond_prepare_sysfs_group(struct bonding *bond);
+int bond_sysfs_slave_add(struct slave *slave);
+void bond_sysfs_slave_del(struct slave *slave);
+int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev);
+int bond_release(struct net_device *bond_dev, struct net_device *slave_dev);
+u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb);
+void bond_select_active_slave(struct bonding *bond);
+void bond_change_active_slave(struct bonding *bond, struct slave *new_active);
+void bond_create_debugfs(void);
+void bond_destroy_debugfs(void);
+void bond_debug_register(struct bonding *bond);
+void bond_debug_unregister(struct bonding *bond);
+void bond_debug_reregister(struct bonding *bond);
+const char *bond_mode_name(int mode);
+void bond_setup(struct net_device *bond_dev);
+unsigned int bond_get_num_tx_queues(void);
+int bond_netlink_init(void);
+void bond_netlink_fini(void);
+struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond);
+const char *bond_slave_link_status(s8 link);
+struct bond_vlan_tag *bond_verify_device_path(struct net_device *start_dev,
+ struct net_device *end_dev,
+ int level);
+int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave);
+void bond_slave_arr_work_rearm(struct bonding *bond, unsigned long delay);
+
+#ifdef CONFIG_PROC_FS
+void bond_create_proc_entry(struct bonding *bond);
+void bond_remove_proc_entry(struct bonding *bond);
+void bond_create_proc_dir(struct bond_net *bn);
+void bond_destroy_proc_dir(struct bond_net *bn);
+#else
+static inline void bond_create_proc_entry(struct bonding *bond)
+{
+}
+
+static inline void bond_remove_proc_entry(struct bonding *bond)
+{
+}
+
+static inline void bond_create_proc_dir(struct bond_net *bn)
+{
+}
+
+static inline void bond_destroy_proc_dir(struct bond_net *bn)
+{
+}
+#endif
+
+static inline struct slave *bond_slave_has_mac(struct bonding *bond,
+ const u8 *mac)
+{
+ struct list_head *iter;
+ struct slave *tmp;
+
+ bond_for_each_slave(bond, tmp, iter)
+ if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr))
+ return tmp;
+
+ return NULL;
+}
+
+/* Caller must hold rcu_read_lock() for read */
+static inline struct slave *bond_slave_has_mac_rcu(struct bonding *bond,
+ const u8 *mac)
+{
+ struct list_head *iter;
+ struct slave *tmp;
+
+ bond_for_each_slave_rcu(bond, tmp, iter)
+ if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr))
+ return tmp;
+
+ return NULL;
+}
+
+/* Caller must hold rcu_read_lock() for read */
+static inline bool bond_slave_has_mac_rx(struct bonding *bond, const u8 *mac)
+{
+ struct list_head *iter;
+ struct slave *tmp;
+ struct netdev_hw_addr *ha;
+
+ bond_for_each_slave_rcu(bond, tmp, iter)
+ if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr))
+ return true;
+
+ if (netdev_uc_empty(bond->dev))
+ return false;
+
+ netdev_for_each_uc_addr(ha, bond->dev)
+ if (ether_addr_equal_64bits(mac, ha->addr))
+ return true;
+
+ return false;
+}
+
+/* Check if the ip is present in arp ip list, or first free slot if ip == 0
+ * Returns -1 if not found, index if found
+ */
+static inline int bond_get_targets_ip(__be32 *targets, __be32 ip)
+{
+ int i;
+
+ for (i = 0; i < BOND_MAX_ARP_TARGETS; i++)
+ if (targets[i] == ip)
+ return i;
+ else if (targets[i] == 0)
+ break;
+
+ return -1;
+}
+
+/* exported from bond_main.c */
+extern int bond_net_id;
+extern const struct bond_parm_tbl bond_lacp_tbl[];
+extern const struct bond_parm_tbl xmit_hashtype_tbl[];
+extern const struct bond_parm_tbl arp_validate_tbl[];
+extern const struct bond_parm_tbl arp_all_targets_tbl[];
+extern const struct bond_parm_tbl fail_over_mac_tbl[];
+extern const struct bond_parm_tbl pri_reselect_tbl[];
+extern struct bond_parm_tbl ad_select_tbl[];
+
+/* exported from bond_netlink.c */
+extern struct rtnl_link_ops bond_link_ops;
+
+static inline void bond_tx_drop(struct net_device *dev, struct sk_buff *skb)
+{
+ atomic_long_inc(&dev->tx_dropped);
+ dev_kfree_skb_any(skb);
+}
+
+#endif /* _NET_BONDING_H */