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1 | /* |
2 | * Copyright(c) 1999 - 2004 Intel Corporation. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License as published by the | |
6 | * Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
11 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 | * for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
15 | * with this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
17 | * | |
18 | * The full GNU General Public License is included in this distribution in the | |
19 | * file called LICENSE. | |
20 | * | |
1da177e4 LT |
21 | */ |
22 | ||
23 | #ifndef __BOND_ALB_H__ | |
24 | #define __BOND_ALB_H__ | |
25 | ||
26 | #include <linux/if_ether.h> | |
27 | ||
28 | struct bonding; | |
29 | struct slave; | |
30 | ||
31 | #define BOND_ALB_INFO(bond) ((bond)->alb_info) | |
32 | #define SLAVE_TLB_INFO(slave) ((slave)->tlb_info) | |
33 | ||
34 | struct tlb_client_info { | |
35 | struct slave *tx_slave; /* A pointer to slave used for transmiting | |
36 | * packets to a Client that the Hash function | |
37 | * gave this entry index. | |
38 | */ | |
39 | u32 tx_bytes; /* Each Client acumulates the BytesTx that | |
40 | * were tranmitted to it, and after each | |
41 | * CallBack the LoadHistory is devided | |
42 | * by the balance interval | |
43 | */ | |
44 | u32 load_history; /* This field contains the amount of Bytes | |
45 | * that were transmitted to this client by | |
46 | * the server on the previous balance | |
47 | * interval in Bps. | |
48 | */ | |
49 | u32 next; /* The next Hash table entry index, assigned | |
50 | * to use the same adapter for transmit. | |
51 | */ | |
52 | u32 prev; /* The previous Hash table entry index, | |
53 | * assigned to use the same | |
54 | */ | |
55 | }; | |
56 | ||
57 | /* ------------------------------------------------------------------------- | |
58 | * struct rlb_client_info contains all info related to a specific rx client | |
59 | * connection. This is the Clients Hash Table entry struct | |
60 | * ------------------------------------------------------------------------- | |
61 | */ | |
62 | struct rlb_client_info { | |
d3bb52b0 AV |
63 | __be32 ip_src; /* the server IP address */ |
64 | __be32 ip_dst; /* the client IP address */ | |
1da177e4 LT |
65 | u8 mac_dst[ETH_ALEN]; /* the client MAC address */ |
66 | u32 next; /* The next Hash table entry index */ | |
67 | u32 prev; /* The previous Hash table entry index */ | |
68 | u8 assigned; /* checking whether this entry is assigned */ | |
69 | u8 ntt; /* flag - need to transmit client info */ | |
70 | struct slave *slave; /* the slave assigned to this client */ | |
71 | u8 tag; /* flag - need to tag skb */ | |
72 | unsigned short vlan_id; /* VLAN tag associated with IP address */ | |
73 | }; | |
74 | ||
75 | struct tlb_slave_info { | |
76 | u32 head; /* Index to the head of the bi-directional clients | |
77 | * hash table entries list. The entries in the list | |
78 | * are the entries that were assigned to use this | |
79 | * slave for transmit. | |
80 | */ | |
81 | u32 load; /* Each slave sums the loadHistory of all clients | |
82 | * assigned to it | |
83 | */ | |
84 | }; | |
85 | ||
86 | struct alb_bond_info { | |
87 | struct timer_list alb_timer; | |
88 | struct tlb_client_info *tx_hashtbl; /* Dynamically allocated */ | |
89 | spinlock_t tx_hashtbl_lock; | |
90 | u32 unbalanced_load; | |
91 | int tx_rebalance_counter; | |
92 | int lp_counter; | |
93 | /* -------- rlb parameters -------- */ | |
94 | int rlb_enabled; | |
95 | struct packet_type rlb_pkt_type; | |
96 | struct rlb_client_info *rx_hashtbl; /* Receive hash table */ | |
97 | spinlock_t rx_hashtbl_lock; | |
98 | u32 rx_hashtbl_head; | |
99 | u8 rx_ntt; /* flag - need to transmit | |
100 | * to all rx clients | |
101 | */ | |
102 | struct slave *next_rx_slave;/* next slave to be assigned | |
103 | * to a new rx client for | |
104 | */ | |
105 | u32 rlb_interval_counter; | |
106 | u8 primary_is_promisc; /* boolean */ | |
107 | u32 rlb_promisc_timeout_counter;/* counts primary | |
108 | * promiscuity time | |
109 | */ | |
110 | u32 rlb_update_delay_counter; | |
111 | u32 rlb_update_retry_counter;/* counter of retries | |
112 | * of client update | |
113 | */ | |
114 | u8 rlb_rebalance; /* flag - indicates that the | |
115 | * rx traffic should be | |
116 | * rebalanced | |
117 | */ | |
118 | struct vlan_entry *current_alb_vlan; | |
119 | }; | |
120 | ||
121 | int bond_alb_initialize(struct bonding *bond, int rlb_enabled); | |
122 | void bond_alb_deinitialize(struct bonding *bond); | |
123 | int bond_alb_init_slave(struct bonding *bond, struct slave *slave); | |
124 | void bond_alb_deinit_slave(struct bonding *bond, struct slave *slave); | |
125 | void bond_alb_handle_link_change(struct bonding *bond, struct slave *slave, char link); | |
126 | void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave); | |
127 | int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev); | |
1b76b316 | 128 | void bond_alb_monitor(struct work_struct *); |
1da177e4 LT |
129 | int bond_alb_set_mac_address(struct net_device *bond_dev, void *addr); |
130 | void bond_alb_clear_vlan(struct bonding *bond, unsigned short vlan_id); | |
131 | #endif /* __BOND_ALB_H__ */ | |
132 |