Release 4.11 net/mac80211/debugfs.c
/*
* mac80211 debugfs for wireless PHYs
*
* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH
*
* GPLv2
*
*/
#include <linux/debugfs.h>
#include <linux/rtnetlink.h>
#include <linux/vmalloc.h>
#include "ieee80211_i.h"
#include "driver-ops.h"
#include "rate.h"
#include "debugfs.h"
#define DEBUGFS_FORMAT_BUFFER_SIZE 100
int mac80211_format_buffer(char __user *userbuf, size_t count,
loff_t *ppos, char *fmt, ...)
{
va_list args;
char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
int res;
va_start(args, fmt);
res = vscnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Eliad Peller | 46 | 59.74% | 1 | 50.00% |
| Michal Kazior | 31 | 40.26% | 1 | 50.00% |
| Total | 77 | 100.00% | 2 | 100.00% |
#define DEBUGFS_READONLY_FILE_FN(name, fmt, value...) \
static ssize_t name## _read(struct file *file, char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
struct ieee80211_local *local = file->private_data; \
\
return mac80211_format_buffer(userbuf, count, ppos, \
fmt "\n", ##value); \
}
#define DEBUGFS_READONLY_FILE_OPS(name) \
static const struct file_operations name## _ops = { \
.read = name## _read, \
.open = simple_open, \
.llseek = generic_file_llseek, \
};
#define DEBUGFS_READONLY_FILE(name, fmt, value...) \
DEBUGFS_READONLY_FILE_FN(name, fmt, value) \
DEBUGFS_READONLY_FILE_OPS(name)
#define DEBUGFS_ADD(name) \
debugfs_create_file(#name, 0400, phyd, local, &name## _ops);
#define DEBUGFS_ADD_MODE(name, mode) \
debugfs_create_file(#name, mode, phyd, local, &name## _ops);
DEBUGFS_READONLY_FILE(user_power, "%d",
local->user_power_level);
DEBUGFS_READONLY_FILE(power, "%d",
local->hw.conf.power_level);
DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
local->total_ps_buffered);
DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
local->wep_iv & 0xffffff);
DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
static ssize_t aqm_read(struct file *file,
char __user *user_buf,
size_t count,
loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
struct fq *fq = &local->fq;
char buf[200];
int len = 0;
spin_lock_bh(&local->fq.lock);
rcu_read_lock();
len = scnprintf(buf, sizeof(buf),
"access name value\n"
"R fq_flows_cnt %u\n"
"R fq_backlog %u\n"
"R fq_overlimit %u\n"
"R fq_overmemory %u\n"
"R fq_collisions %u\n"
"R fq_memory_usage %u\n"
"RW fq_memory_limit %u\n"
"RW fq_limit %u\n"
"RW fq_quantum %u\n",
fq->flows_cnt,
fq->backlog,
fq->overmemory,
fq->overlimit,
fq->collisions,
fq->memory_usage,
fq->memory_limit,
fq->limit,
fq->quantum);
rcu_read_unlock();
spin_unlock_bh(&local->fq.lock);
return simple_read_from_buffer(user_buf, count, ppos,
buf, len);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Michal Kazior | 112 | 73.68% | 1 | 33.33% |
| Toke Höiland-Jörgensen | 40 | 26.32% | 2 | 66.67% |
| Total | 152 | 100.00% | 3 | 100.00% |
static ssize_t aqm_write(struct file *file,
const char __user *user_buf,
size_t count,
loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
char buf[100];
size_t len;
if (count > sizeof(buf))
return -EINVAL;
if (copy_from_user(buf, user_buf, count))
return -EFAULT;
buf[sizeof(buf) - 1] = '\0';
len = strlen(buf);
if (len > 0 && buf[len-1] == '\n')
buf[len-1] = 0;
if (sscanf(buf, "fq_limit %u", &local->fq.limit) == 1)
return count;
else if (sscanf(buf, "fq_memory_limit %u", &local->fq.memory_limit) == 1)
return count;
else if (sscanf(buf, "fq_quantum %u", &local->fq.quantum) == 1)
return count;
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Michal Kazior | 129 | 70.88% | 1 | 16.67% |
| Toke Höiland-Jörgensen | 24 | 13.19% | 2 | 33.33% |
| Jiri Benc | 14 | 7.69% | 1 | 16.67% |
| Eliad Peller | 10 | 5.49% | 1 | 16.67% |
| Ben Greear | 5 | 2.75% | 1 | 16.67% |
| Total | 182 | 100.00% | 6 | 100.00% |
static const struct file_operations aqm_ops = {
.write = aqm_write,
.read = aqm_read,
.open = simple_open,
.llseek = default_llseek,
};
#ifdef CONFIG_PM
static ssize_t reset_write(struct file *file, const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
rtnl_lock();
__ieee80211_suspend(&local->hw, NULL);
__ieee80211_resume(&local->hw);
rtnl_unlock();
return count;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Johannes Berg | 60 | 100.00% | 2 | 100.00% |
| Total | 60 | 100.00% | 2 | 100.00% |
static const struct file_operations reset_ops = {
.write = reset_write,
.open = simple_open,
.llseek = noop_llseek,
};
#endif
static const char *hw_flag_names[] = {
#define FLAG(F) [IEEE80211_HW_##F] = #F
FLAG(HAS_RATE_CONTROL),
FLAG(RX_INCLUDES_FCS),
FLAG(HOST_BROADCAST_PS_BUFFERING),
FLAG(SIGNAL_UNSPEC),
FLAG(SIGNAL_DBM),
FLAG(NEED_DTIM_BEFORE_ASSOC),
FLAG(SPECTRUM_MGMT),
FLAG(AMPDU_AGGREGATION),
FLAG(SUPPORTS_PS),
FLAG(PS_NULLFUNC_STACK),
FLAG(SUPPORTS_DYNAMIC_PS),
FLAG(MFP_CAPABLE),
FLAG(WANT_MONITOR_VIF),
FLAG(NO_AUTO_VIF),
FLAG(SW_CRYPTO_CONTROL),
FLAG(SUPPORT_FAST_XMIT),
FLAG(REPORTS_TX_ACK_STATUS),
FLAG(CONNECTION_MONITOR),
FLAG(QUEUE_CONTROL),
FLAG(SUPPORTS_PER_STA_GTK),
FLAG(AP_LINK_PS),
FLAG(TX_AMPDU_SETUP_IN_HW),
FLAG(SUPPORTS_RC_TABLE),
FLAG(P2P_DEV_ADDR_FOR_INTF),
FLAG(TIMING_BEACON_ONLY),
FLAG(SUPPORTS_HT_CCK_RATES),
FLAG(CHANCTX_STA_CSA),
FLAG(SUPPORTS_CLONED_SKBS),
FLAG(SINGLE_SCAN_ON_ALL_BANDS),
FLAG(TDLS_WIDER_BW),
FLAG(SUPPORTS_AMSDU_IN_AMPDU),
FLAG(BEACON_TX_STATUS),
FLAG(NEEDS_UNIQUE_STA_ADDR),
FLAG(SUPPORTS_REORDERING_BUFFER),
FLAG(USES_RSS),
FLAG(TX_AMSDU),
FLAG(TX_FRAG_LIST),
FLAG(REPORTS_LOW_ACK),
FLAG(SUPPORTS_TX_FRAG),
#undef FLAG
};
static ssize_t hwflags_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
size_t bufsz = 30 * NUM_IEEE80211_HW_FLAGS;
char *buf = kzalloc(bufsz, GFP_KERNEL);
char *pos = buf, *end = buf + bufsz - 1;
ssize_t rv;
int i;
if (!buf)
return -ENOMEM;
/* fail compilation if somebody adds or removes
* a flag without updating the name array above
*/
BUILD_BUG_ON(ARRAY_SIZE(hw_flag_names) != NUM_IEEE80211_HW_FLAGS);
for (i = 0; i < NUM_IEEE80211_HW_FLAGS; i++) {
if (test_bit(i, local->hw.flags))
pos += scnprintf(pos, end - pos, "%s\n",
hw_flag_names[i]);
}
rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
kfree(buf);
return rv;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Johannes Berg | 91 | 55.83% | 2 | 25.00% |
| Ben Greear | 61 | 37.42% | 1 | 12.50% |
| Arik Nemtsov | 4 | 2.45% | 1 | 12.50% |
| Andrey Ryabinin | 4 | 2.45% | 1 | 12.50% |
| Eliad Peller | 1 | 0.61% | 1 | 12.50% |
| Mohammed Shafi Shajakhan | 1 | 0.61% | 1 | 12.50% |
| Arnd Bergmann | 1 | 0.61% | 1 | 12.50% |
| Total | 163 | 100.00% | 8 | 100.00% |
static ssize_t misc_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
/* Max len of each line is 16 characters, plus 9 for 'pending:\n' */
size_t bufsz = IEEE80211_MAX_QUEUES * 16 + 9;
char *buf;
char *pos, *end;
ssize_t rv;
int i;
int ln;
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
pos = buf;
end = buf + bufsz - 1;
pos += scnprintf(pos, end - pos, "pending:\n");
for (i = 0; i < IEEE80211_MAX_QUEUES; i++) {
ln = skb_queue_len(&local->pending[i]);
pos += scnprintf(pos, end - pos, "[%i] %d\n",
i, ln);
}
rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
kfree(buf);
return rv;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Greear | 146 | 82.95% | 1 | 50.00% |
| Dan Carpenter | 30 | 17.05% | 1 | 50.00% |
| Total | 176 | 100.00% | 2 | 100.00% |
static ssize_t queues_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
unsigned long flags;
char buf[IEEE80211_MAX_QUEUES * 20];
int q, res = 0;
spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
for (q = 0; q < local->hw.queues; q++)
res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
local->queue_stop_reasons[q],
skb_queue_len(&local->pending[q]));
spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
return simple_read_from_buffer(user_buf, count, ppos, buf, res);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Greear | 132 | 99.25% | 1 | 50.00% |
| Johannes Berg | 1 | 0.75% | 1 | 50.00% |
| Total | 133 | 100.00% | 2 | 100.00% |
DEBUGFS_READONLY_FILE_OPS(hwflags);
DEBUGFS_READONLY_FILE_OPS(queues);
DEBUGFS_READONLY_FILE_OPS(misc);
/* statistics stuff */
static ssize_t format_devstat_counter(struct ieee80211_local *local,
char __user *userbuf,
size_t count, loff_t *ppos,
int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
int buflen))
{
struct ieee80211_low_level_stats stats;
char buf[20];
int res;
rtnl_lock();
res = drv_get_stats(local, &stats);
rtnl_unlock();
if (res)
return res;
res = printvalue(&stats, buf, sizeof(buf));
return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jiri Benc | 101 | 94.39% | 1 | 33.33% |
| Johannes Berg | 6 | 5.61% | 2 | 66.67% |
| Total | 107 | 100.00% | 3 | 100.00% |
#define DEBUGFS_DEVSTATS_FILE(name) \
static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
char *buf, int buflen) \
{ \
return scnprintf(buf, buflen, "%u\n", stats->name); \
} \
static ssize_t stats_ ##name## _read(struct file *file, \
char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
return format_devstat_counter(file->private_data, \
userbuf, \
count, \
ppos, \
print_devstats_##name); \
} \
\
static const struct file_operations stats_ ##name## _ops = { \
.read = stats_ ##name## _read, \
.open = simple_open, \
.llseek = generic_file_llseek, \
};
#define DEBUGFS_STATS_ADD(name) \
debugfs_create_u32(#name, 0400, statsd, &local->name);
#define DEBUGFS_DEVSTATS_ADD(name) \
debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops);
DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
void debugfs_hw_add(struct ieee80211_local *local)
{
struct dentry *phyd = local->hw.wiphy->debugfsdir;
struct dentry *statsd;
if (!phyd)
return;
local->debugfs.keys = debugfs_create_dir("keys", phyd);
DEBUGFS_ADD(total_ps_buffered);
DEBUGFS_ADD(wep_iv);
DEBUGFS_ADD(rate_ctrl_alg);
DEBUGFS_ADD(queues);
DEBUGFS_ADD(misc);
#ifdef CONFIG_PM
DEBUGFS_ADD_MODE(reset, 0200);
#endif
DEBUGFS_ADD(hwflags);
DEBUGFS_ADD(user_power);
DEBUGFS_ADD(power);
if (local->ops->wake_tx_queue)
DEBUGFS_ADD_MODE(aqm, 0600);
statsd = debugfs_create_dir("statistics", phyd);
/* if the dir failed, don't put all the other things into the root! */
if (!statsd)
return;
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
DEBUGFS_STATS_ADD(dot11TransmittedFragmentCount);
DEBUGFS_STATS_ADD(dot11MulticastTransmittedFrameCount);
DEBUGFS_STATS_ADD(dot11FailedCount);
DEBUGFS_STATS_ADD(dot11RetryCount);
DEBUGFS_STATS_ADD(dot11MultipleRetryCount);
DEBUGFS_STATS_ADD(dot11FrameDuplicateCount);
DEBUGFS_STATS_ADD(dot11ReceivedFragmentCount);
DEBUGFS_STATS_ADD(dot11MulticastReceivedFrameCount);
DEBUGFS_STATS_ADD(dot11TransmittedFrameCount);
DEBUGFS_STATS_ADD(tx_handlers_drop);
DEBUGFS_STATS_ADD(tx_handlers_queued);
DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
DEBUGFS_STATS_ADD(rx_handlers_drop);
DEBUGFS_STATS_ADD(rx_handlers_queued);
DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
DEBUGFS_STATS_ADD(tx_expand_skb_head);
DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
DEBUGFS_STATS_ADD(rx_expand_skb_head_defrag);
DEBUGFS_STATS_ADD(rx_handlers_fragments);
DEBUGFS_STATS_ADD(tx_status_drop);
#endif
DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount);
DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount);
DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount);
DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jiri Benc | 194 | 71.85% | 1 | 6.67% |
| Johannes Berg | 26 | 9.63% | 7 | 46.67% |
| Ben Greear | 18 | 6.67% | 3 | 20.00% |
| Felix Fietkau | 15 | 5.56% | 1 | 6.67% |
| Toke Höiland-Jörgensen | 8 | 2.96% | 1 | 6.67% |
| Michal Kazior | 7 | 2.59% | 1 | 6.67% |
| Alina Friedrichsen | 2 | 0.74% | 1 | 6.67% |
| Total | 270 | 100.00% | 15 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Michal Kazior | 432 | 24.00% | 1 | 2.50% |
| Johannes Berg | 387 | 21.50% | 16 | 40.00% |
| Ben Greear | 377 | 20.94% | 3 | 7.50% |
| Jiri Benc | 358 | 19.89% | 1 | 2.50% |
| Toke Höiland-Jörgensen | 73 | 4.06% | 2 | 5.00% |
| Eliad Peller | 61 | 3.39% | 2 | 5.00% |
| Felix Fietkau | 32 | 1.78% | 2 | 5.00% |
| Dan Carpenter | 30 | 1.67% | 1 | 2.50% |
| Sara Sharon | 10 | 0.56% | 2 | 5.00% |
| Arik Nemtsov | 9 | 0.50% | 2 | 5.00% |
| Arnd Bergmann | 6 | 0.33% | 1 | 2.50% |
| Helmut Schaa | 5 | 0.28% | 1 | 2.50% |
| Emmanuel Grumbach | 5 | 0.28% | 1 | 2.50% |
| Rajkumar Manoharan | 5 | 0.28% | 1 | 2.50% |
| Andrey Ryabinin | 5 | 0.28% | 1 | 2.50% |
| Stephen Boyd | 2 | 0.11% | 1 | 2.50% |
| Alina Friedrichsen | 2 | 0.11% | 1 | 2.50% |
| Mohammed Shafi Shajakhan | 1 | 0.06% | 1 | 2.50% |
| Total | 1800 | 100.00% | 40 | 100.00% |
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