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
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright(c) 2007 Atheros Corporation. All rights reserved.
*
* Derived from Intel e1000 driver
* Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
*/
#include <linux/netdevice.h>
#include "atl1e.h"
/* This is the only thing that needs to be changed to adjust the
* maximum number of ports that the driver can manage.
*/
#define ATL1E_MAX_NIC 32
#define OPTION_UNSET -1
#define OPTION_DISABLED 0
#define OPTION_ENABLED 1
/* All parameters are treated the same, as an integer array of values.
* This macro just reduces the need to repeat the same declaration code
* over and over (plus this helps to avoid typo bugs).
*/
#define ATL1E_PARAM_INIT { [0 ... ATL1E_MAX_NIC] = OPTION_UNSET }
#define ATL1E_PARAM(x, desc) \
static int x[ATL1E_MAX_NIC + 1] = ATL1E_PARAM_INIT; \
static unsigned int num_##x; \
module_param_array_named(x, x, int, &num_##x, 0); \
MODULE_PARM_DESC(x, desc);
/* Transmit Memory count
*
* Valid Range: 64-2048
*
* Default Value: 128
*/
#define ATL1E_MIN_TX_DESC_CNT 32
#define ATL1E_MAX_TX_DESC_CNT 1020
#define ATL1E_DEFAULT_TX_DESC_CNT 128
ATL1E_PARAM(tx_desc_cnt, "Transmit description count");
/* Receive Memory Block Count
*
* Valid Range: 16-512
*
* Default Value: 128
*/
#define ATL1E_MIN_RX_MEM_SIZE 8 /* 8KB */
#define ATL1E_MAX_RX_MEM_SIZE 1024 /* 1MB */
#define ATL1E_DEFAULT_RX_MEM_SIZE 256 /* 128KB */
ATL1E_PARAM(rx_mem_size, "memory size of rx buffer(KB)");
/* User Specified MediaType Override
*
* Valid Range: 0-5
* - 0 - auto-negotiate at all supported speeds
* - 1 - only link at 100Mbps Full Duplex
* - 2 - only link at 100Mbps Half Duplex
* - 3 - only link at 10Mbps Full Duplex
* - 4 - only link at 10Mbps Half Duplex
* Default Value: 0
*/
ATL1E_PARAM(media_type, "MediaType Select");
/* Interrupt Moderate Timer in units of 2 us
*
* Valid Range: 10-65535
*
* Default Value: 45000(90ms)
*/
#define INT_MOD_DEFAULT_CNT 100 /* 200us */
#define INT_MOD_MAX_CNT 65000
#define INT_MOD_MIN_CNT 50
ATL1E_PARAM(int_mod_timer, "Interrupt Moderator Timer");
#define AUTONEG_ADV_DEFAULT 0x2F
#define AUTONEG_ADV_MASK 0x2F
#define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL
#define FLASH_VENDOR_DEFAULT 0
#define FLASH_VENDOR_MIN 0
#define FLASH_VENDOR_MAX 2
struct atl1e_option {
enum { enable_option, range_option, list_option } type;
char *name;
char *err;
int def;
union {
struct { /* range_option info */
int min;
int max;
} r;
struct { /* list_option info */
int nr;
struct atl1e_opt_list { int i; char *str; } *p;
} l;
} arg;
};
static int atl1e_validate_option(int *value, struct atl1e_option *opt,
struct atl1e_adapter *adapter)
{
if (*value == OPTION_UNSET) {
*value = opt->def;
return 0;
}
switch (opt->type) {
case enable_option:
switch (*value) {
case OPTION_ENABLED:
netdev_info(adapter->netdev,
"%s Enabled\n", opt->name);
return 0;
case OPTION_DISABLED:
netdev_info(adapter->netdev,
"%s Disabled\n", opt->name);
return 0;
}
break;
case range_option:
if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
netdev_info(adapter->netdev, "%s set to %i\n",
opt->name, *value);
return 0;
}
break;
case list_option:{
int i;
struct atl1e_opt_list *ent;
for (i = 0; i < opt->arg.l.nr; i++) {
ent = &opt->arg.l.p[i];
if (*value == ent->i) {
if (ent->str[0] != '\0')
netdev_info(adapter->netdev,
"%s\n", ent->str);
return 0;
}
}
break;
}
default:
BUG();
}
netdev_info(adapter->netdev, "Invalid %s specified (%i) %s\n",
opt->name, *value, opt->err);
*value = opt->def;
return -1;
}
/**
* atl1e_check_options - Range Checking for Command Line Parameters
* @adapter: board private structure
*
* This routine checks all command line parameters for valid user
* input. If an invalid value is given, or if no user specified
* value exists, a default value is used. The final value is stored
* in a variable in the adapter structure.
*/
void atl1e_check_options(struct atl1e_adapter *adapter)
{
int bd = adapter->bd_number;
if (bd >= ATL1E_MAX_NIC) {
netdev_notice(adapter->netdev,
"no configuration for board #%i\n", bd);
netdev_notice(adapter->netdev,
"Using defaults for all values\n");
}
{ /* Transmit Ring Size */
struct atl1e_option opt = {
.type = range_option,
.name = "Transmit Ddescription Count",
.err = "using default of "
__MODULE_STRING(ATL1E_DEFAULT_TX_DESC_CNT),
.def = ATL1E_DEFAULT_TX_DESC_CNT,
.arg = { .r = { .min = ATL1E_MIN_TX_DESC_CNT,
.max = ATL1E_MAX_TX_DESC_CNT} }
};
int val;
if (num_tx_desc_cnt > bd) {
val = tx_desc_cnt[bd];
atl1e_validate_option(&val, &opt, adapter);
adapter->tx_ring.count = (u16) val & 0xFFFC;
} else
adapter->tx_ring.count = (u16)opt.def;
}
{ /* Receive Memory Block Count */
struct atl1e_option opt = {
.type = range_option,
.name = "Memory size of rx buffer(KB)",
.err = "using default of "
__MODULE_STRING(ATL1E_DEFAULT_RX_MEM_SIZE),
.def = ATL1E_DEFAULT_RX_MEM_SIZE,
.arg = { .r = { .min = ATL1E_MIN_RX_MEM_SIZE,
.max = ATL1E_MAX_RX_MEM_SIZE} }
};
int val;
if (num_rx_mem_size > bd) {
val = rx_mem_size[bd];
atl1e_validate_option(&val, &opt, adapter);
adapter->rx_ring.page_size = (u32)val * 1024;
} else {
adapter->rx_ring.page_size = (u32)opt.def * 1024;
}
}
{ /* Interrupt Moderate Timer */
struct atl1e_option opt = {
.type = range_option,
.name = "Interrupt Moderate Timer",
.err = "using default of "
__MODULE_STRING(INT_MOD_DEFAULT_CNT),
.def = INT_MOD_DEFAULT_CNT,
.arg = { .r = { .min = INT_MOD_MIN_CNT,
.max = INT_MOD_MAX_CNT} }
} ;
int val;
if (num_int_mod_timer > bd) {
val = int_mod_timer[bd];
atl1e_validate_option(&val, &opt, adapter);
adapter->hw.imt = (u16) val;
} else
adapter->hw.imt = (u16)(opt.def);
}
{ /* MediaType */
struct atl1e_option opt = {
.type = range_option,
.name = "Speed/Duplex Selection",
.err = "using default of "
__MODULE_STRING(MEDIA_TYPE_AUTO_SENSOR),
.def = MEDIA_TYPE_AUTO_SENSOR,
.arg = { .r = { .min = MEDIA_TYPE_AUTO_SENSOR,
.max = MEDIA_TYPE_10M_HALF} }
} ;
int val;
if (num_media_type > bd) {
val = media_type[bd];
atl1e_validate_option(&val, &opt, adapter);
adapter->hw.media_type = (u16) val;
} else
adapter->hw.media_type = (u16)(opt.def);
}
}
|
