mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
2ad4814fb6
The suspend/resume code depends on CONFIG_PM, so the reset debugfs file can only be made available if that is enabled. Fengguang Wu's zero-day build testing found this. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
318 lines
10 KiB
C
318 lines
10 KiB
C
|
|
/*
|
|
* mac80211 debugfs for wireless PHYs
|
|
*
|
|
* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
|
|
*
|
|
* GPLv2
|
|
*
|
|
*/
|
|
|
|
#include <linux/debugfs.h>
|
|
#include <linux/rtnetlink.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);
|
|
}
|
|
|
|
#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");
|
|
|
|
#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;
|
|
}
|
|
|
|
static const struct file_operations reset_ops = {
|
|
.write = reset_write,
|
|
.open = simple_open,
|
|
.llseek = noop_llseek,
|
|
};
|
|
#endif
|
|
|
|
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;
|
|
int mxln = 500;
|
|
ssize_t rv;
|
|
char *buf = kzalloc(mxln, GFP_KERNEL);
|
|
int sf = 0; /* how many written so far */
|
|
|
|
if (!buf)
|
|
return 0;
|
|
|
|
sf += snprintf(buf, mxln - sf, "0x%x\n", local->hw.flags);
|
|
if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
|
|
sf += snprintf(buf + sf, mxln - sf, "HAS_RATE_CONTROL\n");
|
|
if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
|
|
sf += snprintf(buf + sf, mxln - sf, "RX_INCLUDES_FCS\n");
|
|
if (local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING)
|
|
sf += snprintf(buf + sf, mxln - sf,
|
|
"HOST_BCAST_PS_BUFFERING\n");
|
|
if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)
|
|
sf += snprintf(buf + sf, mxln - sf,
|
|
"2GHZ_SHORT_SLOT_INCAPABLE\n");
|
|
if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)
|
|
sf += snprintf(buf + sf, mxln - sf,
|
|
"2GHZ_SHORT_PREAMBLE_INCAPABLE\n");
|
|
if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
|
|
sf += snprintf(buf + sf, mxln - sf, "SIGNAL_UNSPEC\n");
|
|
if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
|
|
sf += snprintf(buf + sf, mxln - sf, "SIGNAL_DBM\n");
|
|
if (local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD)
|
|
sf += snprintf(buf + sf, mxln - sf, "NEED_DTIM_PERIOD\n");
|
|
if (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT)
|
|
sf += snprintf(buf + sf, mxln - sf, "SPECTRUM_MGMT\n");
|
|
if (local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION)
|
|
sf += snprintf(buf + sf, mxln - sf, "AMPDU_AGGREGATION\n");
|
|
if (local->hw.flags & IEEE80211_HW_SUPPORTS_PS)
|
|
sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PS\n");
|
|
if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
|
|
sf += snprintf(buf + sf, mxln - sf, "PS_NULLFUNC_STACK\n");
|
|
if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
|
|
sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_PS\n");
|
|
if (local->hw.flags & IEEE80211_HW_MFP_CAPABLE)
|
|
sf += snprintf(buf + sf, mxln - sf, "MFP_CAPABLE\n");
|
|
if (local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS)
|
|
sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_STATIC_SMPS\n");
|
|
if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS)
|
|
sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_SMPS\n");
|
|
if (local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)
|
|
sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_UAPSD\n");
|
|
if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
|
|
sf += snprintf(buf + sf, mxln - sf, "REPORTS_TX_ACK_STATUS\n");
|
|
if (local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
|
|
sf += snprintf(buf + sf, mxln - sf, "CONNECTION_MONITOR\n");
|
|
if (local->hw.flags & IEEE80211_HW_SUPPORTS_PER_STA_GTK)
|
|
sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PER_STA_GTK\n");
|
|
if (local->hw.flags & IEEE80211_HW_AP_LINK_PS)
|
|
sf += snprintf(buf + sf, mxln - sf, "AP_LINK_PS\n");
|
|
if (local->hw.flags & IEEE80211_HW_TX_AMPDU_SETUP_IN_HW)
|
|
sf += snprintf(buf + sf, mxln - sf, "TX_AMPDU_SETUP_IN_HW\n");
|
|
if (local->hw.flags & IEEE80211_HW_SCAN_WHILE_IDLE)
|
|
sf += snprintf(buf + sf, mxln - sf, "SCAN_WHILE_IDLE\n");
|
|
|
|
rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
|
|
kfree(buf);
|
|
return rv;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
DEBUGFS_READONLY_FILE_OPS(hwflags);
|
|
DEBUGFS_READONLY_FILE_OPS(queues);
|
|
|
|
/* 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);
|
|
}
|
|
|
|
#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, field) \
|
|
debugfs_create_u32(#name, 0400, statsd, (u32 *) &field);
|
|
#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(queues);
|
|
#ifdef CONFIG_PM
|
|
DEBUGFS_ADD_MODE(reset, 0200);
|
|
#endif
|
|
DEBUGFS_ADD(hwflags);
|
|
DEBUGFS_ADD(user_power);
|
|
DEBUGFS_ADD(power);
|
|
|
|
statsd = debugfs_create_dir("statistics", phyd);
|
|
|
|
/* if the dir failed, don't put all the other things into the root! */
|
|
if (!statsd)
|
|
return;
|
|
|
|
DEBUGFS_STATS_ADD(transmitted_fragment_count,
|
|
local->dot11TransmittedFragmentCount);
|
|
DEBUGFS_STATS_ADD(multicast_transmitted_frame_count,
|
|
local->dot11MulticastTransmittedFrameCount);
|
|
DEBUGFS_STATS_ADD(failed_count, local->dot11FailedCount);
|
|
DEBUGFS_STATS_ADD(retry_count, local->dot11RetryCount);
|
|
DEBUGFS_STATS_ADD(multiple_retry_count,
|
|
local->dot11MultipleRetryCount);
|
|
DEBUGFS_STATS_ADD(frame_duplicate_count,
|
|
local->dot11FrameDuplicateCount);
|
|
DEBUGFS_STATS_ADD(received_fragment_count,
|
|
local->dot11ReceivedFragmentCount);
|
|
DEBUGFS_STATS_ADD(multicast_received_frame_count,
|
|
local->dot11MulticastReceivedFrameCount);
|
|
DEBUGFS_STATS_ADD(transmitted_frame_count,
|
|
local->dot11TransmittedFrameCount);
|
|
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
|
|
DEBUGFS_STATS_ADD(tx_handlers_drop, local->tx_handlers_drop);
|
|
DEBUGFS_STATS_ADD(tx_handlers_queued, local->tx_handlers_queued);
|
|
DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted,
|
|
local->tx_handlers_drop_unencrypted);
|
|
DEBUGFS_STATS_ADD(tx_handlers_drop_fragment,
|
|
local->tx_handlers_drop_fragment);
|
|
DEBUGFS_STATS_ADD(tx_handlers_drop_wep,
|
|
local->tx_handlers_drop_wep);
|
|
DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc,
|
|
local->tx_handlers_drop_not_assoc);
|
|
DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port,
|
|
local->tx_handlers_drop_unauth_port);
|
|
DEBUGFS_STATS_ADD(rx_handlers_drop, local->rx_handlers_drop);
|
|
DEBUGFS_STATS_ADD(rx_handlers_queued, local->rx_handlers_queued);
|
|
DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc,
|
|
local->rx_handlers_drop_nullfunc);
|
|
DEBUGFS_STATS_ADD(rx_handlers_drop_defrag,
|
|
local->rx_handlers_drop_defrag);
|
|
DEBUGFS_STATS_ADD(rx_handlers_drop_short,
|
|
local->rx_handlers_drop_short);
|
|
DEBUGFS_STATS_ADD(tx_expand_skb_head,
|
|
local->tx_expand_skb_head);
|
|
DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned,
|
|
local->tx_expand_skb_head_cloned);
|
|
DEBUGFS_STATS_ADD(rx_expand_skb_head,
|
|
local->rx_expand_skb_head);
|
|
DEBUGFS_STATS_ADD(rx_expand_skb_head2,
|
|
local->rx_expand_skb_head2);
|
|
DEBUGFS_STATS_ADD(rx_handlers_fragments,
|
|
local->rx_handlers_fragments);
|
|
DEBUGFS_STATS_ADD(tx_status_drop,
|
|
local->tx_status_drop);
|
|
#endif
|
|
DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount);
|
|
DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount);
|
|
DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount);
|
|
DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount);
|
|
}
|