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6#include <linux/slab.h>
7#include <asm/ebcdic.h>
8#include "qeth_l2.h"
9
10#define QETH_DEVICE_ATTR(_id, _name, _mode, _show, _store) \
11struct device_attribute dev_attr_##_id = __ATTR(_name, _mode, _show, _store)
12
13static int qeth_card_hw_is_reachable(struct qeth_card *card)
14{
15 return (card->state == CARD_STATE_SOFTSETUP) ||
16 (card->state == CARD_STATE_UP);
17}
18
19static ssize_t qeth_bridge_port_role_state_show(struct device *dev,
20 struct device_attribute *attr, char *buf,
21 int show_state)
22{
23 struct qeth_card *card = dev_get_drvdata(dev);
24 enum qeth_sbp_states state = QETH_SBP_STATE_INACTIVE;
25 int rc = 0;
26 char *word;
27
28 if (!card)
29 return -EINVAL;
30
31 mutex_lock(&card->conf_mutex);
32
33 if (qeth_card_hw_is_reachable(card) &&
34 card->options.sbp.supported_funcs)
35 rc = qeth_bridgeport_query_ports(card,
36 &card->options.sbp.role, &state);
37 if (!rc) {
38 if (show_state)
39 switch (state) {
40 case QETH_SBP_STATE_INACTIVE:
41 word = "inactive"; break;
42 case QETH_SBP_STATE_STANDBY:
43 word = "standby"; break;
44 case QETH_SBP_STATE_ACTIVE:
45 word = "active"; break;
46 default:
47 rc = -EIO;
48 }
49 else
50 switch (card->options.sbp.role) {
51 case QETH_SBP_ROLE_NONE:
52 word = "none"; break;
53 case QETH_SBP_ROLE_PRIMARY:
54 word = "primary"; break;
55 case QETH_SBP_ROLE_SECONDARY:
56 word = "secondary"; break;
57 default:
58 rc = -EIO;
59 }
60 if (rc)
61 QETH_CARD_TEXT_(card, 2, "SBP%02x:%02x",
62 card->options.sbp.role, state);
63 else
64 rc = sprintf(buf, "%s\n", word);
65 }
66
67 mutex_unlock(&card->conf_mutex);
68
69 return rc;
70}
71
72static ssize_t qeth_bridge_port_role_show(struct device *dev,
73 struct device_attribute *attr, char *buf)
74{
75 return qeth_bridge_port_role_state_show(dev, attr, buf, 0);
76}
77
78static ssize_t qeth_bridge_port_role_store(struct device *dev,
79 struct device_attribute *attr, const char *buf, size_t count)
80{
81 struct qeth_card *card = dev_get_drvdata(dev);
82 int rc = 0;
83 enum qeth_sbp_roles role;
84
85 if (!card)
86 return -EINVAL;
87 if (sysfs_streq(buf, "primary"))
88 role = QETH_SBP_ROLE_PRIMARY;
89 else if (sysfs_streq(buf, "secondary"))
90 role = QETH_SBP_ROLE_SECONDARY;
91 else if (sysfs_streq(buf, "none"))
92 role = QETH_SBP_ROLE_NONE;
93 else
94 return -EINVAL;
95
96 mutex_lock(&card->conf_mutex);
97
98 if (qeth_card_hw_is_reachable(card)) {
99 rc = qeth_bridgeport_setrole(card, role);
100 if (!rc)
101 card->options.sbp.role = role;
102 } else
103 card->options.sbp.role = role;
104
105 mutex_unlock(&card->conf_mutex);
106
107 return rc ? rc : count;
108}
109
110static DEVICE_ATTR(bridge_role, 0644, qeth_bridge_port_role_show,
111 qeth_bridge_port_role_store);
112
113static ssize_t qeth_bridge_port_state_show(struct device *dev,
114 struct device_attribute *attr, char *buf)
115{
116 return qeth_bridge_port_role_state_show(dev, attr, buf, 1);
117}
118
119static DEVICE_ATTR(bridge_state, 0644, qeth_bridge_port_state_show,
120 NULL);
121
122static ssize_t qeth_bridgeport_hostnotification_show(struct device *dev,
123 struct device_attribute *attr, char *buf)
124{
125 struct qeth_card *card = dev_get_drvdata(dev);
126 int enabled;
127
128 if (!card)
129 return -EINVAL;
130
131 mutex_lock(&card->conf_mutex);
132
133 enabled = card->options.sbp.hostnotification;
134
135 mutex_unlock(&card->conf_mutex);
136
137 return sprintf(buf, "%d\n", enabled);
138}
139
140static ssize_t qeth_bridgeport_hostnotification_store(struct device *dev,
141 struct device_attribute *attr, const char *buf, size_t count)
142{
143 struct qeth_card *card = dev_get_drvdata(dev);
144 int rc = 0;
145 int enable;
146
147 if (!card)
148 return -EINVAL;
149
150 if (sysfs_streq(buf, "0"))
151 enable = 0;
152 else if (sysfs_streq(buf, "1"))
153 enable = 1;
154 else
155 return -EINVAL;
156
157 mutex_lock(&card->conf_mutex);
158
159 if (qeth_card_hw_is_reachable(card)) {
160 rc = qeth_bridgeport_an_set(card, enable);
161 if (!rc)
162 card->options.sbp.hostnotification = enable;
163 } else
164 card->options.sbp.hostnotification = enable;
165
166 mutex_unlock(&card->conf_mutex);
167
168 return rc ? rc : count;
169}
170
171static DEVICE_ATTR(bridge_hostnotify, 0644,
172 qeth_bridgeport_hostnotification_show,
173 qeth_bridgeport_hostnotification_store);
174
175static struct attribute *qeth_l2_bridgeport_attrs[] = {
176 &dev_attr_bridge_role.attr,
177 &dev_attr_bridge_state.attr,
178 &dev_attr_bridge_hostnotify.attr,
179 NULL,
180};
181
182static struct attribute_group qeth_l2_bridgeport_attr_group = {
183 .attrs = qeth_l2_bridgeport_attrs,
184};
185
186int qeth_l2_create_device_attributes(struct device *dev)
187{
188 return sysfs_create_group(&dev->kobj, &qeth_l2_bridgeport_attr_group);
189}
190
191void qeth_l2_remove_device_attributes(struct device *dev)
192{
193 sysfs_remove_group(&dev->kobj, &qeth_l2_bridgeport_attr_group);
194}
195
196
197
198
199
200
201
202void qeth_l2_setup_bridgeport_attrs(struct qeth_card *card)
203{
204 int rc;
205
206 if (!card)
207 return;
208 if (!card->options.sbp.supported_funcs)
209 return;
210 if (card->options.sbp.role != QETH_SBP_ROLE_NONE) {
211
212 qeth_bridgeport_setrole(card, card->options.sbp.role);
213
214 qeth_bridgeport_query_ports(card,
215 &card->options.sbp.role, NULL);
216 }
217 if (card->options.sbp.hostnotification) {
218 rc = qeth_bridgeport_an_set(card, 1);
219 if (rc)
220 card->options.sbp.hostnotification = 0;
221 } else
222 qeth_bridgeport_an_set(card, 0);
223}
224
