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 #include <linux/timer.h>
23 
24 #define EQL_DEFAULT_SLAVE_PRIORITY 28800
25 #define EQL_DEFAULT_MAX_SLAVES     4
26 #define EQL_DEFAULT_MTU            576
27 #define EQL_DEFAULT_RESCHED_IVAL   100
28 
29 #define EQL_ENSLAVE     (SIOCDEVPRIVATE)
30 #define EQL_EMANCIPATE  (SIOCDEVPRIVATE + 1)
31 
32 #define EQL_GETSLAVECFG (SIOCDEVPRIVATE + 2)
33 #define EQL_SETSLAVECFG (SIOCDEVPRIVATE + 3)
34 
35 #define EQL_GETMASTRCFG (SIOCDEVPRIVATE + 4)
36 #define EQL_SETMASTRCFG (SIOCDEVPRIVATE + 5)
37 
38 typedef struct slave {
39   struct net_device *dev;
40   long priority;
41   long priority_bps;
42   long priority_Bps;
43   long bytes_queued;
44   struct slave *next;
45 } slave_t;
46 
47 typedef struct slave_queue {
48   slave_t *head;
49   slave_t *best_slave;
50   int num_slaves;
51   struct net_device *master_dev;
52   char lock;
53 } slave_queue_t;
54 
55 typedef struct equalizer {
56   slave_queue_t *queue;
57   int min_slaves;
58   int max_slaves;
59   struct net_device_stats *stats;
60   struct timer_list timer;
61   char timer_on;
62 } equalizer_t;
63 
64 typedef struct master_config {
65   char master_name[16];
66   int max_slaves;
67   int min_slaves;
68 } master_config_t;
69 
70 typedef struct slave_config {
71   char slave_name[16];
72   long priority;
73 } slave_config_t;
74 
75 typedef struct slaving_request {
76   char slave_name[16];
77   long priority;
78 } slaving_request_t;
79 
80 
81 #endif /* _LINUX_EQL_H */
82