1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/*
* 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 __BOND_ALB_H__
#define __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)
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 acumulates the BytesTx that
* were tranmitted to it, and after each
* CallBack the LoadHistory is devided
* 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
* -------------------------------------------------------------------------
*/
struct rlb_client_info {
__be32 ip_src; /* the server IP address */
__be32 ip_dst; /* the client IP address */
u8 mac_dst[ETH_ALEN]; /* the client MAC address */
u32 next; /* The next Hash table entry index */
u32 prev; /* The previous Hash table entry 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 */
u8 tag; /* flag - need to tag skb */
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 timer_list alb_timer;
struct tlb_client_info *tx_hashtbl; /* Dynamically allocated */
spinlock_t tx_hashtbl_lock;
u32 unbalanced_load;
int tx_rebalance_counter;
int lp_counter;
/* -------- rlb parameters -------- */
int rlb_enabled;
struct packet_type rlb_pkt_type;
struct rlb_client_info *rx_hashtbl; /* Receive hash table */
spinlock_t rx_hashtbl_lock;
u32 rx_hashtbl_head;
u8 rx_ntt; /* flag - need to transmit
* to all rx clients
*/
struct slave *next_rx_slave;/* next slave to be assigned
* to a new rx client for
*/
u32 rlb_interval_counter;
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
*/
struct vlan_entry *current_alb_vlan;
};
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);
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 /* __BOND_ALB_H__ */
|
