diff options
Diffstat (limited to 'net/mac80211/debugfs.c')
| -rw-r--r-- | net/mac80211/debugfs.c | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c new file mode 100644 index 0000000..24ce544 --- /dev/null +++ b/net/mac80211/debugfs.c @@ -0,0 +1,313 @@ +/* + * 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 "rate.h" +#include "debugfs.h" + +int mac80211_open_file_generic(struct inode *inode, struct file *file) +{ + file->private_data = inode->i_private; + return 0; +} + +#define DEBUGFS_READONLY_FILE(name, buflen, 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; \ + char buf[buflen]; \ + int res; \ + \ + res = scnprintf(buf, buflen, fmt "\n", ##value); \ + return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ +} \ + \ +static const struct file_operations name## _ops = { \ + .read = name## _read, \ + .open = mac80211_open_file_generic, \ +}; + +#define DEBUGFS_ADD(name) \ + local->debugfs.name = debugfs_create_file(#name, 0400, phyd, \ + local, &name## _ops); + +#define DEBUGFS_DEL(name) \ + debugfs_remove(local->debugfs.name); \ + local->debugfs.name = NULL; + + +DEBUGFS_READONLY_FILE(frequency, 20, "%d", + local->hw.conf.channel->center_freq); +DEBUGFS_READONLY_FILE(antenna_sel_tx, 20, "%d", + local->hw.conf.antenna_sel_tx); +DEBUGFS_READONLY_FILE(antenna_sel_rx, 20, "%d", + local->hw.conf.antenna_sel_rx); +DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d", + local->rts_threshold); +DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d", + local->fragmentation_threshold); +DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d", + local->short_retry_limit); +DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d", + local->long_retry_limit); +DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d", + local->total_ps_buffered); +DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x", + local->wep_iv & 0xffffff); +DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s", + local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>"); + +/* statistics stuff */ + +#define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \ + DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value) + +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; + + if (!local->ops->get_stats) + return -EOPNOTSUPP; + + rtnl_lock(); + res = local->ops->get_stats(local_to_hw(local), &stats); + rtnl_unlock(); + if (!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 = mac80211_open_file_generic, \ +}; + +#define DEBUGFS_STATS_ADD(name) \ + local->debugfs.stats.name = debugfs_create_file(#name, 0400, statsd,\ + local, &stats_ ##name## _ops); + +#define DEBUGFS_STATS_DEL(name) \ + debugfs_remove(local->debugfs.stats.name); \ + local->debugfs.stats.name = NULL; + +DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u", + local->dot11TransmittedFragmentCount); +DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u", + local->dot11MulticastTransmittedFrameCount); +DEBUGFS_STATS_FILE(failed_count, 20, "%u", + local->dot11FailedCount); +DEBUGFS_STATS_FILE(retry_count, 20, "%u", + local->dot11RetryCount); +DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u", + local->dot11MultipleRetryCount); +DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u", + local->dot11FrameDuplicateCount); +DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u", + local->dot11ReceivedFragmentCount); +DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u", + local->dot11MulticastReceivedFrameCount); +DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u", + local->dot11TransmittedFrameCount); +DEBUGFS_STATS_FILE(wep_undecryptable_count, 20, "%u", + local->dot11WEPUndecryptableCount); +#ifdef CONFIG_MAC80211_DEBUG_COUNTERS +DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u", + local->tx_handlers_drop); +DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u", + local->tx_handlers_queued); +DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u", + local->tx_handlers_drop_unencrypted); +DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u", + local->tx_handlers_drop_fragment); +DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u", + local->tx_handlers_drop_wep); +DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u", + local->tx_handlers_drop_not_assoc); +DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u", + local->tx_handlers_drop_unauth_port); +DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u", + local->rx_handlers_drop); +DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u", + local->rx_handlers_queued); +DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u", + local->rx_handlers_drop_nullfunc); +DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u", + local->rx_handlers_drop_defrag); +DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u", + local->rx_handlers_drop_short); +DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u", + local->rx_handlers_drop_passive_scan); +DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u", + local->tx_expand_skb_head); +DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u", + local->tx_expand_skb_head_cloned); +DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u", + local->rx_expand_skb_head); +DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u", + local->rx_expand_skb_head2); +DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u", + local->rx_handlers_fragments); +DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u", + local->tx_status_drop); + +#endif + +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.stations = debugfs_create_dir("stations", phyd); + local->debugfs.keys = debugfs_create_dir("keys", phyd); + + DEBUGFS_ADD(frequency); + DEBUGFS_ADD(antenna_sel_tx); + DEBUGFS_ADD(antenna_sel_rx); + DEBUGFS_ADD(rts_threshold); + DEBUGFS_ADD(fragmentation_threshold); + DEBUGFS_ADD(short_retry_limit); + DEBUGFS_ADD(long_retry_limit); + DEBUGFS_ADD(total_ps_buffered); + DEBUGFS_ADD(wep_iv); + + statsd = debugfs_create_dir("statistics", phyd); + local->debugfs.statistics = statsd; + + /* if the dir failed, don't put all the other things into the root! */ + if (!statsd) + return; + + DEBUGFS_STATS_ADD(transmitted_fragment_count); + DEBUGFS_STATS_ADD(multicast_transmitted_frame_count); + DEBUGFS_STATS_ADD(failed_count); + DEBUGFS_STATS_ADD(retry_count); + DEBUGFS_STATS_ADD(multiple_retry_count); + DEBUGFS_STATS_ADD(frame_duplicate_count); + DEBUGFS_STATS_ADD(received_fragment_count); + DEBUGFS_STATS_ADD(multicast_received_frame_count); + DEBUGFS_STATS_ADD(transmitted_frame_count); + DEBUGFS_STATS_ADD(wep_undecryptable_count); +#ifdef CONFIG_MAC80211_DEBUG_COUNTERS + DEBUGFS_STATS_ADD(tx_handlers_drop); + DEBUGFS_STATS_ADD(tx_handlers_queued); + DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted); + DEBUGFS_STATS_ADD(tx_handlers_drop_fragment); + 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(rx_handlers_drop_short); + DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan); + DEBUGFS_STATS_ADD(tx_expand_skb_head); + DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned); + DEBUGFS_STATS_ADD(rx_expand_skb_head); + DEBUGFS_STATS_ADD(rx_expand_skb_head2); + DEBUGFS_STATS_ADD(rx_handlers_fragments); + DEBUGFS_STATS_ADD(tx_status_drop); +#endif + DEBUGFS_STATS_ADD(dot11ACKFailureCount); + DEBUGFS_STATS_ADD(dot11RTSFailureCount); + DEBUGFS_STATS_ADD(dot11FCSErrorCount); + DEBUGFS_STATS_ADD(dot11RTSSuccessCount); +} + +void debugfs_hw_del(struct ieee80211_local *local) +{ + DEBUGFS_DEL(frequency); + DEBUGFS_DEL(antenna_sel_tx); + DEBUGFS_DEL(antenna_sel_rx); + DEBUGFS_DEL(rts_threshold); + DEBUGFS_DEL(fragmentation_threshold); + DEBUGFS_DEL(short_retry_limit); + DEBUGFS_DEL(long_retry_limit); + DEBUGFS_DEL(total_ps_buffered); + DEBUGFS_DEL(wep_iv); + + DEBUGFS_STATS_DEL(transmitted_fragment_count); + DEBUGFS_STATS_DEL(multicast_transmitted_frame_count); + DEBUGFS_STATS_DEL(failed_count); + DEBUGFS_STATS_DEL(retry_count); + DEBUGFS_STATS_DEL(multiple_retry_count); + DEBUGFS_STATS_DEL(frame_duplicate_count); + DEBUGFS_STATS_DEL(received_fragment_count); + DEBUGFS_STATS_DEL(multicast_received_frame_count); + DEBUGFS_STATS_DEL(transmitted_frame_count); + DEBUGFS_STATS_DEL(wep_undecryptable_count); + DEBUGFS_STATS_DEL(num_scans); +#ifdef CONFIG_MAC80211_DEBUG_COUNTERS + DEBUGFS_STATS_DEL(tx_handlers_drop); + DEBUGFS_STATS_DEL(tx_handlers_queued); + DEBUGFS_STATS_DEL(tx_handlers_drop_unencrypted); + DEBUGFS_STATS_DEL(tx_handlers_drop_fragment); + DEBUGFS_STATS_DEL(tx_handlers_drop_wep); + DEBUGFS_STATS_DEL(tx_handlers_drop_not_assoc); + DEBUGFS_STATS_DEL(tx_handlers_drop_unauth_port); + DEBUGFS_STATS_DEL(rx_handlers_drop); + DEBUGFS_STATS_DEL(rx_handlers_queued); + DEBUGFS_STATS_DEL(rx_handlers_drop_nullfunc); + DEBUGFS_STATS_DEL(rx_handlers_drop_defrag); + DEBUGFS_STATS_DEL(rx_handlers_drop_short); + DEBUGFS_STATS_DEL(rx_handlers_drop_passive_scan); + DEBUGFS_STATS_DEL(tx_expand_skb_head); + DEBUGFS_STATS_DEL(tx_expand_skb_head_cloned); + DEBUGFS_STATS_DEL(rx_expand_skb_head); + DEBUGFS_STATS_DEL(rx_expand_skb_head2); + DEBUGFS_STATS_DEL(rx_handlers_fragments); + DEBUGFS_STATS_DEL(tx_status_drop); +#endif + DEBUGFS_STATS_DEL(dot11ACKFailureCount); + DEBUGFS_STATS_DEL(dot11RTSFailureCount); + DEBUGFS_STATS_DEL(dot11FCSErrorCount); + DEBUGFS_STATS_DEL(dot11RTSSuccessCount); + + debugfs_remove(local->debugfs.statistics); + local->debugfs.statistics = NULL; + debugfs_remove(local->debugfs.stations); + local->debugfs.stations = NULL; + debugfs_remove(local->debugfs.keys); + local->debugfs.keys = NULL; +} |
