[libata] Drain data on errors
[linux-2.6] / include / linux / if_eql.h
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 */