1 /*
2  * Equalizer Load-balancer for serial network interfaces.
3  *
4  * (c) Copyright 1995 Simon "Guru Aleph-Null" Janes
5  * NCM: Network and Communications Management, Inc.
6  *
7  *
8  *	This software may be used and distributed according to the terms
9  *	of the GNU General Public License, incorporated herein by reference.
10  *
11  * The author may be reached as simon@ncm.com, or C/O
12  *    NCM
13  *    Attn: Simon Janes
14  *    6803 Whittier Ave
15  *    McLean VA 22101
16  *    Phone: 1-703-847-0040 ext 103
17  */
18 
19 #ifndef _LINUX_IF_EQL_H
20 #define _LINUX_IF_EQL_H
21 
22 #define EQL_DEFAULT_SLAVE_PRIORITY 28800
23 #define EQL_DEFAULT_MAX_SLAVES     4
24 #define EQL_DEFAULT_MTU            576
25 #define EQL_DEFAULT_RESCHED_IVAL   100
26 
27 #define EQL_ENSLAVE     (SIOCDEVPRIVATE)
28 #define EQL_EMANCIPATE  (SIOCDEVPRIVATE + 1)
29 
30 #define EQL_GETSLAVECFG (SIOCDEVPRIVATE + 2)
31 #define EQL_SETSLAVECFG (SIOCDEVPRIVATE + 3)
32 
33 #define EQL_GETMASTRCFG (SIOCDEVPRIVATE + 4)
34 #define EQL_SETMASTRCFG (SIOCDEVPRIVATE + 5)
35 
36 #ifdef __KERNEL__
37 
38 #include <linux/timer.h>
39 #include <linux/spinlock.h>
40 
41 typedef struct slave {
42 	struct list_head	list;
43 	struct net_device	*dev;
44 	long			priority;
45 	long			priority_bps;
46 	long			priority_Bps;
47 	long			bytes_queued;
48 } slave_t;
49 
50 typedef struct slave_queue {
51 	spinlock_t		lock;
52 	struct list_head	all_slaves;
53 	int			num_slaves;
54 	struct net_device	*master_dev;
55 } slave_queue_t;
56 
57 typedef struct equalizer {
58 	slave_queue_t		queue;
59 	int			min_slaves;
60 	int			max_slaves;
61 	struct timer_list	timer;
62 } equalizer_t;
63 
64 #endif /* __KERNEL__ */
65 
66 typedef struct master_config {
67 	char	master_name[16];
68 	int	max_slaves;
69 	int	min_slaves;
70 } master_config_t;
71 
72 typedef struct slave_config {
73 	char	slave_name[16];
74 	long	priority;
75 } slave_config_t;
76 
77 typedef struct slaving_request {
78 	char	slave_name[16];
79 	long	priority;
80 } slaving_request_t;
81 
82 
83 #endif /* _LINUX_EQL_H */
84