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
|
/* cxgb3i_init.c: Chelsio S3xx iSCSI driver.
*
* Copyright (c) 2008 Chelsio Communications, Inc.
*
* 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.
*
* Written by: Karen Xie (kxie@chelsio.com)
*/
#include "cxgb3i.h"
#define DRV_MODULE_NAME "cxgb3i"
#define DRV_MODULE_VERSION "1.0.1"
#define DRV_MODULE_RELDATE "Jan. 2009"
static char version[] =
"Chelsio S3xx iSCSI Driver " DRV_MODULE_NAME
" v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
MODULE_AUTHOR("Karen Xie <kxie@chelsio.com>");
MODULE_DESCRIPTION("Chelsio S3xx iSCSI Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);
static void open_s3_dev(struct t3cdev *);
static void close_s3_dev(struct t3cdev *);
static void s3_err_handler(struct t3cdev *tdev, u32 status, u32 error);
static cxgb3_cpl_handler_func cxgb3i_cpl_handlers[NUM_CPL_CMDS];
static struct cxgb3_client t3c_client = {
.name = "iscsi_cxgb3",
.handlers = cxgb3i_cpl_handlers,
.add = open_s3_dev,
.remove = close_s3_dev,
.err_handler = s3_err_handler,
};
/**
* open_s3_dev - register with cxgb3 LLD
* @t3dev: cxgb3 adapter instance
*/
static void open_s3_dev(struct t3cdev *t3dev)
{
static int vers_printed;
if (!vers_printed) {
printk(KERN_INFO "%s", version);
vers_printed = 1;
}
cxgb3i_sdev_add(t3dev, &t3c_client);
cxgb3i_adapter_open(t3dev);
}
/**
* close_s3_dev - de-register with cxgb3 LLD
* @t3dev: cxgb3 adapter instance
*/
static void close_s3_dev(struct t3cdev *t3dev)
{
cxgb3i_adapter_close(t3dev);
cxgb3i_sdev_remove(t3dev);
}
static void s3_err_handler(struct t3cdev *tdev, u32 status, u32 error)
{
struct cxgb3i_adapter *snic = cxgb3i_adapter_find_by_tdev(tdev);
cxgb3i_log_info("snic 0x%p, tdev 0x%p, status 0x%x, err 0x%x.\n",
snic, tdev, status, error);
if (!snic)
return;
switch (status) {
case OFFLOAD_STATUS_DOWN:
snic->flags |= CXGB3I_ADAPTER_FLAG_RESET;
break;
case OFFLOAD_STATUS_UP:
snic->flags &= ~CXGB3I_ADAPTER_FLAG_RESET;
break;
}
}
/**
* cxgb3i_init_module - module init entry point
*
* initialize any driver wide global data structures and register itself
* with the cxgb3 module
*/
static int __init cxgb3i_init_module(void)
{
int err;
err = cxgb3i_sdev_init(cxgb3i_cpl_handlers);
if (err < 0)
return err;
err = cxgb3i_iscsi_init();
if (err < 0)
return err;
err = cxgb3i_pdu_init();
if (err < 0)
return err;
cxgb3_register_client(&t3c_client);
return 0;
}
/**
* cxgb3i_exit_module - module cleanup/exit entry point
*
* go through the driver hba list and for each hba, release any resource held.
* and unregisters iscsi transport and the cxgb3 module
*/
static void __exit cxgb3i_exit_module(void)
{
cxgb3_unregister_client(&t3c_client);
cxgb3i_pdu_cleanup();
cxgb3i_iscsi_cleanup();
cxgb3i_sdev_cleanup();
}
module_init(cxgb3i_init_module);
module_exit(cxgb3i_exit_module);
|
