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ixgbe: disable flow control by default
[linux-2.6/mini2440.git] / net / mac80211 / debugfs_sta.c
blob6abe5427752b2e715e16483f9cc2bbf33a6c602d
1 /*
2 * Copyright 2003-2005 Devicescape Software, Inc.
3 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
4 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11 #include <linux/debugfs.h>
12 #include <linux/ieee80211.h>
13 #include "ieee80211_i.h"
14 #include "debugfs.h"
15 #include "debugfs_sta.h"
16 #include "sta_info.h"
17
18 /* sta attributtes */
19
20 #define STA_READ(name, buflen, field, format_string) \
21 static ssize_t sta_ ##name## _read(struct file *file, \
22 char __user *userbuf, \
23 size_t count, loff_t *ppos) \
24 { \
25 int res; \
26 struct sta_info *sta = file->private_data; \
27 char buf[buflen]; \
28 res = scnprintf(buf, buflen, format_string, sta->field); \
29 return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
30 }
31 #define STA_READ_D(name, field) STA_READ(name, 20, field, "%d\n")
32 #define STA_READ_U(name, field) STA_READ(name, 20, field, "%u\n")
33 #define STA_READ_LU(name, field) STA_READ(name, 20, field, "%lu\n")
34 #define STA_READ_S(name, field) STA_READ(name, 20, field, "%s\n")
35
36 #define STA_OPS(name) \
37 static const struct file_operations sta_ ##name## _ops = { \
38 .read = sta_##name##_read, \
39 .open = mac80211_open_file_generic, \
40 }
41
42 #define STA_OPS_WR(name) \
43 static const struct file_operations sta_ ##name## _ops = { \
44 .read = sta_##name##_read, \
45 .write = sta_##name##_write, \
46 .open = mac80211_open_file_generic, \
47 }
48
49 #define STA_FILE(name, field, format) \
50 STA_READ_##format(name, field) \
51 STA_OPS(name)
52
53 STA_FILE(aid, aid, D);
54 STA_FILE(dev, sdata->dev->name, S);
55 STA_FILE(rx_packets, rx_packets, LU);
56 STA_FILE(tx_packets, tx_packets, LU);
57 STA_FILE(rx_bytes, rx_bytes, LU);
58 STA_FILE(tx_bytes, tx_bytes, LU);
59 STA_FILE(rx_duplicates, num_duplicates, LU);
60 STA_FILE(rx_fragments, rx_fragments, LU);
61 STA_FILE(rx_dropped, rx_dropped, LU);
62 STA_FILE(tx_fragments, tx_fragments, LU);
63 STA_FILE(tx_filtered, tx_filtered_count, LU);
64 STA_FILE(tx_retry_failed, tx_retry_failed, LU);
65 STA_FILE(tx_retry_count, tx_retry_count, LU);
66 STA_FILE(last_signal, last_signal, D);
67 STA_FILE(last_qual, last_qual, D);
68 STA_FILE(last_noise, last_noise, D);
69 STA_FILE(wep_weak_iv_count, wep_weak_iv_count, LU);
70
71 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
72 size_t count, loff_t *ppos)
73 {
74 char buf[100];
75 struct sta_info *sta = file->private_data;
76 u32 staflags = get_sta_flags(sta);
77 int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s",
78 staflags & WLAN_STA_AUTH ? "AUTH\n" : "",
79 staflags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
80 staflags & WLAN_STA_PS ? "PS\n" : "",
81 staflags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
82 staflags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
83 staflags & WLAN_STA_WME ? "WME\n" : "",
84 staflags & WLAN_STA_WDS ? "WDS\n" : "");
85 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
86 }
87 STA_OPS(flags);
88
89 static ssize_t sta_num_ps_buf_frames_read(struct file *file,
90 char __user *userbuf,
91 size_t count, loff_t *ppos)
92 {
93 char buf[20];
94 struct sta_info *sta = file->private_data;
95 int res = scnprintf(buf, sizeof(buf), "%u\n",
96 skb_queue_len(&sta->ps_tx_buf));
97 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
98 }
99 STA_OPS(num_ps_buf_frames);
100
101 static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
102 size_t count, loff_t *ppos)
103 {
104 char buf[20];
105 struct sta_info *sta = file->private_data;
106 int res = scnprintf(buf, sizeof(buf), "%d\n",
107 jiffies_to_msecs(jiffies - sta->last_rx));
108 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
109 }
110 STA_OPS(inactive_ms);
111
112 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
113 size_t count, loff_t *ppos)
114 {
115 char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
116 int i;
117 struct sta_info *sta = file->private_data;
118 for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
119 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
120 le16_to_cpu(sta->last_seq_ctrl[i]));
121 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
122 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
123 }
124 STA_OPS(last_seq_ctrl);
125
126 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
127 size_t count, loff_t *ppos)
128 {
129 char buf[768], *p = buf;
130 int i;
131 struct sta_info *sta = file->private_data;
132 p += scnprintf(p, sizeof(buf)+buf-p, "Agg state for STA is:\n");
133 p += scnprintf(p, sizeof(buf)+buf-p, " STA next dialog_token is %d \n "
134 "TIDs info is: \n TID :",
135 (sta->ampdu_mlme.dialog_token_allocator + 1));
136 for (i = 0; i < STA_TID_NUM; i++)
137 p += scnprintf(p, sizeof(buf)+buf-p, "%5d", i);
138
139 p += scnprintf(p, sizeof(buf)+buf-p, "\n RX :");
140 for (i = 0; i < STA_TID_NUM; i++)
141 p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
142 sta->ampdu_mlme.tid_state_rx[i]);
143
144 p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:");
145 for (i = 0; i < STA_TID_NUM; i++)
146 p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
147 sta->ampdu_mlme.tid_state_rx[i]?
148 sta->ampdu_mlme.tid_rx[i]->dialog_token : 0);
149
150 p += scnprintf(p, sizeof(buf)+buf-p, "\n TX :");
151 for (i = 0; i < STA_TID_NUM; i++)
152 p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
153 sta->ampdu_mlme.tid_state_tx[i]);
154
155 p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:");
156 for (i = 0; i < STA_TID_NUM; i++)
157 p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
158 sta->ampdu_mlme.tid_state_tx[i]?
159 sta->ampdu_mlme.tid_tx[i]->dialog_token : 0);
160
161 p += scnprintf(p, sizeof(buf)+buf-p, "\n SSN :");
162 for (i = 0; i < STA_TID_NUM; i++)
163 p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
164 sta->ampdu_mlme.tid_state_tx[i]?
165 sta->ampdu_mlme.tid_tx[i]->ssn : 0);
166
167 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
168
169 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
170 }
171
172 static ssize_t sta_agg_status_write(struct file *file,
173 const char __user *user_buf, size_t count, loff_t *ppos)
174 {
175 struct sta_info *sta = file->private_data;
176 struct net_device *dev = sta->sdata->dev;
177 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
178 struct ieee80211_hw *hw = &local->hw;
179 u8 *da = sta->addr;
180 static int tid_static_tx[16] = {0, 0, 0, 0, 0, 0, 0, 0,
181 0, 0, 0, 0, 0, 0, 0, 0};
182 static int tid_static_rx[16] = {1, 1, 1, 1, 1, 1, 1, 1,
183 1, 1, 1, 1, 1, 1, 1, 1};
184 char *endp;
185 char buf[32];
186 int buf_size, rs;
187 unsigned int tid_num;
188 char state[4];
189
190 memset(buf, 0x00, sizeof(buf));
191 buf_size = min(count, (sizeof(buf)-1));
192 if (copy_from_user(buf, user_buf, buf_size))
193 return -EFAULT;
194
195 tid_num = simple_strtoul(buf, &endp, 0);
196 if (endp == buf)
197 return -EINVAL;
198
199 if ((tid_num >= 100) && (tid_num <= 115)) {
200 /* toggle Rx aggregation command */
201 tid_num = tid_num - 100;
202 if (tid_static_rx[tid_num] == 1) {
203 strcpy(state, "off ");
204 ieee80211_sta_stop_rx_ba_session(sta->sdata, da, tid_num, 0,
205 WLAN_REASON_QSTA_REQUIRE_SETUP);
206 sta->ampdu_mlme.tid_state_rx[tid_num] |=
207 HT_AGG_STATE_DEBUGFS_CTL;
208 tid_static_rx[tid_num] = 0;
209 } else {
210 strcpy(state, "on ");
211 sta->ampdu_mlme.tid_state_rx[tid_num] &=
212 ~HT_AGG_STATE_DEBUGFS_CTL;
213 tid_static_rx[tid_num] = 1;
214 }
215 printk(KERN_DEBUG "debugfs - try switching tid %u %s\n",
216 tid_num, state);
217 } else if ((tid_num >= 0) && (tid_num <= 15)) {
218 /* toggle Tx aggregation command */
219 if (tid_static_tx[tid_num] == 0) {
220 strcpy(state, "on ");
221 rs = ieee80211_start_tx_ba_session(hw, da, tid_num);
222 if (rs == 0)
223 tid_static_tx[tid_num] = 1;
224 } else {
225 strcpy(state, "off");
226 rs = ieee80211_stop_tx_ba_session(hw, da, tid_num, 1);
227 if (rs == 0)
228 tid_static_tx[tid_num] = 0;
229 }
230 printk(KERN_DEBUG "debugfs - switching tid %u %s, return=%d\n",
231 tid_num, state, rs);
232 }
233
234 return count;
235 }
236 STA_OPS_WR(agg_status);
237
238 #define DEBUGFS_ADD(name) \
239 sta->debugfs.name = debugfs_create_file(#name, 0400, \
240 sta->debugfs.dir, sta, &sta_ ##name## _ops);
241
242 #define DEBUGFS_DEL(name) \
243 debugfs_remove(sta->debugfs.name);\
244 sta->debugfs.name = NULL;
245
246
247 void ieee80211_sta_debugfs_add(struct sta_info *sta)
248 {
249 struct dentry *stations_dir = sta->local->debugfs.stations;
250 DECLARE_MAC_BUF(mbuf);
251 u8 *mac;
252
253 if (!stations_dir)
254 return;
255
256 mac = print_mac(mbuf, sta->addr);
257
258 sta->debugfs.dir = debugfs_create_dir(mac, stations_dir);
259 if (!sta->debugfs.dir)
260 return;
261
262 DEBUGFS_ADD(flags);
263 DEBUGFS_ADD(num_ps_buf_frames);
264 DEBUGFS_ADD(inactive_ms);
265 DEBUGFS_ADD(last_seq_ctrl);
266 DEBUGFS_ADD(agg_status);
267 }
268
269 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
270 {
271 DEBUGFS_DEL(flags);
272 DEBUGFS_DEL(num_ps_buf_frames);
273 DEBUGFS_DEL(inactive_ms);
274 DEBUGFS_DEL(last_seq_ctrl);
275 DEBUGFS_DEL(agg_status);
276
277 debugfs_remove(sta->debugfs.dir);
278 sta->debugfs.dir = NULL;
279 }
Support for the Chinese Samsung S3C2440 based development boards