patch-2.4.22 linux-2.4.22/drivers/net/bonding/bond_3ad.h

• Lines: 299
• Date: 2003-08-25 04:44:42.000000000 -0700
• Orig file: linux-2.4.21/drivers/net/bonding/bond_3ad.h
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.21/drivers/net/bonding/bond_3ad.h linux-2.4.22/drivers/net/bonding/bond_3ad.h
@@ -0,0 +1,298 @@
+/*
+ * Copyright(c) 1999 - 2003 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.
+ *
+ *
+ * Changes:
+ *
+ * 2003/05/01 - Tsippy Mendelson <tsippy.mendelson at intel dot com> and
+ *		Amir Noam <amir.noam at intel dot com>
+ *	- Added support for lacp_rate module param.
+ *
+ * 2003/05/01 - Shmulik Hen <shmulik.hen at intel dot com>
+ *	- Renamed bond_3ad_link_status_changed() to
+ *	  bond_3ad_handle_link_change() for compatibility with TLB.
+ */
+
+#ifndef __BOND_3AD_H__
+#define __BOND_3AD_H__
+
+#include <asm/byteorder.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+
+// General definitions
+#define BOND_ETH_P_LACPDU       0x8809
+#define PKT_TYPE_LACPDU         __constant_htons(BOND_ETH_P_LACPDU)
+#define AD_TIMER_INTERVAL       100 /*msec*/
+
+#define MULTICAST_LACPDU_ADDR    {0x01, 0x80, 0xC2, 0x00, 0x00, 0x02}
+#define AD_MULTICAST_LACPDU_ADDR    {MULTICAST_LACPDU_ADDR}
+
+#define AD_LACP_SLOW 0
+#define AD_LACP_FAST 1
+
+typedef struct mac_addr {
+	u8 mac_addr_value[ETH_ALEN];
+} mac_addr_t;
+
+typedef enum {
+	AD_BANDWIDTH = 0,
+	AD_COUNT
+} agg_selection_t;
+
+// 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
+} 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)
+
+typedef struct ad_header {
+	struct mac_addr destination_address;
+	struct mac_addr source_address;
+	u16 length_type;
+} ad_header_t;
+
+// 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
+	u16 actor_system_priority;
+	struct mac_addr actor_system;
+	u16 actor_key;
+	u16 actor_port_priority;
+	u16 actor_port;
+	u8 actor_state;
+	u8 reserved_3_1[3];	     // = 0
+	u8 tlv_type_partner_info;     // = partner information
+	u8 partner_information_length;	 // = 20
+	u16 partner_system_priority;
+	struct mac_addr partner_system;
+	u16 partner_key;
+	u16 partner_port_priority;
+	u16 partner_port;
+	u8 partner_state;
+	u8 reserved_3_2[3];	     // = 0
+	u8 tlv_type_collector_info;	  // = collector information
+	u8 collector_information_length; // = 16
+	u16 collector_max_delay;
+	u8 reserved_12[12];
+	u8 tlv_type_terminator;	     // = terminator
+	u8 terminator_length;	     // = 0
+	u8 reserved_50[50];	     // = 0
+} lacpdu_t;
+
+typedef struct lacpdu_header {
+	struct ad_header ad_header;
+	struct lacpdu lacpdu;
+} lacpdu_header_t;
+
+// Marker Protocol Data Unit(PDU) structure(43.5.3.2 in the 802.3ad standard)
+typedef struct 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
+} marker_t;
+
+typedef struct marker_header {
+	struct ad_header ad_header;
+	struct marker marker;
+} 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;
+	u16 is_individual;		 // BOOLEAN
+	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;
+
+// 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;
+	u16 ntt;			 // BOOLEAN
+	u16 actor_admin_port_key;
+	u16 actor_oper_port_key;
+	u8 actor_admin_port_state;
+	u8 actor_oper_port_state;
+	struct mac_addr partner_admin_system;
+	struct mac_addr partner_oper_system;
+	u16 partner_admin_system_priority;
+	u16 partner_oper_system_priority;
+	u16 partner_admin_key;
+	u16 partner_oper_key;
+	u16 partner_admin_port_number;
+	u16 partner_oper_port_number;
+	u16 partner_admin_port_priority;
+	u16 partner_oper_port_priority;
+	u8 partner_admin_port_state;
+	u8 partner_oper_port_state;
+	u16 is_enabled;	      // BOOLEAN
+	// ****** 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
+typedef struct ad_system {
+	u16 sys_priority;
+	struct mac_addr sys_mac_addr;
+} ad_system_t;
+
+#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 {
+	ad_system_t system;	    // 802.3ad system structure
+	u32 agg_select_timer;	    // Timer to select aggregator after all adapter's hand shakes
+	u32 agg_select_mode;	    // Mode of selection of active aggregator(bandwidth/count)
+	int lacp_fast;		/* whether fast periodic tx should be
+				 * requested
+				 */
+	struct timer_list ad_timer;
+	struct packet_type ad_pkt_type;
+};
+
+struct ad_slave_info {
+	struct aggregator aggregator;	    // 802.3ad aggregator structure
+	struct port port;		    // 802.3ad port structure
+	spinlock_t rx_machine_lock; // To avoid race condition between callback and receive interrupt
+	u16 id;
+};
+
+// ================= AD Exported functions to the main bonding code ==================
+void bond_3ad_initialize(struct bonding *bond, u16 tick_resolution, int lacp_fast);
+int  bond_3ad_bind_slave(struct slave *slave);
+void bond_3ad_unbind_slave(struct slave *slave);
+void bond_3ad_state_machine_handler(struct bonding *bond);
+void bond_3ad_rx_indication(struct lacpdu *lacpdu, struct slave *slave, u16 length);
+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_xmit_xor(struct sk_buff *skb, struct net_device *dev);
+int bond_3ad_lacpdu_recv(struct sk_buff *skb, struct net_device *dev, struct packet_type* ptype);
+#endif //__BOND_3AD_H__
+