[MAC80211]: Add debugfs attributes.
Export various mac80211 internal variables through debugfs.
Signed-off-by: Jiri Benc <jbenc@suse.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
new file mode 100644
index 0000000..bb6c0fe
--- /dev/null
+++ b/net/mac80211/debugfs.c
@@ -0,0 +1,433 @@
+/*
+ * 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 "ieee80211_rate.h"
+#include "debugfs.h"
+
+int mac80211_open_file_generic(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+ return 0;
+}
+
+static const char *ieee80211_mode_str(int mode)
+{
+ switch (mode) {
+ case MODE_IEEE80211A:
+ return "IEEE 802.11a";
+ case MODE_IEEE80211B:
+ return "IEEE 802.11b";
+ case MODE_IEEE80211G:
+ return "IEEE 802.11g";
+ case MODE_ATHEROS_TURBO:
+ return "Atheros Turbo (5 GHz)";
+ default:
+ return "UNKNOWN";
+ }
+}
+
+static ssize_t modes_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_local *local = file->private_data;
+ struct ieee80211_hw_mode *mode;
+ char buf[150], *p = buf;
+
+ /* FIXME: locking! */
+ list_for_each_entry(mode, &local->modes_list, list) {
+ p += scnprintf(p, sizeof(buf)+buf-p,
+ "%s\n", ieee80211_mode_str(mode->mode));
+ }
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
+}
+
+static const struct file_operations modes_ops = {
+ .read = modes_read,
+ .open = mac80211_open_file_generic,
+};
+
+#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, 0444, phyd, \
+ local, &name## _ops);
+
+#define DEBUGFS_DEL(name) \
+ debugfs_remove(local->debugfs.name); \
+ local->debugfs.name = NULL;
+
+
+DEBUGFS_READONLY_FILE(channel, 20, "%d",
+ local->hw.conf.channel);
+DEBUGFS_READONLY_FILE(frequency, 20, "%d",
+ local->hw.conf.freq);
+DEBUGFS_READONLY_FILE(radar_detect, 20, "%d",
+ local->hw.conf.radar_detect);
+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(bridge_packets, 20, "%d",
+ local->bridge_packets);
+DEBUGFS_READONLY_FILE(key_tx_rx_threshold, 20, "%d",
+ local->key_tx_rx_threshold);
+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(mode, 20, "%s",
+ ieee80211_mode_str(local->hw.conf.phymode));
+DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x",
+ local->wep_iv & 0xffffff);
+DEBUGFS_READONLY_FILE(tx_power_reduction, 20, "%d.%d dBm",
+ local->hw.conf.tx_power_reduction / 10,
+ local->hw.conf.tx_power_reduction & 10);
+DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
+ local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>");
+
+/* statistics stuff */
+
+static inline int rtnl_lock_local(struct ieee80211_local *local)
+{
+ rtnl_lock();
+ if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) {
+ rtnl_unlock();
+ return -ENODEV;
+ }
+ return 0;
+}
+
+#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;
+
+ res = rtnl_lock_local(local);
+ if (res)
+ return res;
+
+ 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, 0444, 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);
+
+static ssize_t stats_wme_rx_queue_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_local *local = file->private_data;
+ char buf[NUM_RX_DATA_QUEUES*15], *p = buf;
+ int i;
+
+ for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
+ p += scnprintf(p, sizeof(buf)+buf-p,
+ "%u\n", local->wme_rx_queue[i]);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
+}
+
+static const struct file_operations stats_wme_rx_queue_ops = {
+ .read = stats_wme_rx_queue_read,
+ .open = mac80211_open_file_generic,
+};
+
+static ssize_t stats_wme_tx_queue_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_local *local = file->private_data;
+ char buf[NUM_TX_DATA_QUEUES*15], *p = buf;
+ int i;
+
+ for (i = 0; i < NUM_TX_DATA_QUEUES; i++)
+ p += scnprintf(p, sizeof(buf)+buf-p,
+ "%u\n", local->wme_tx_queue[i]);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
+}
+
+static const struct file_operations stats_wme_tx_queue_ops = {
+ .read = stats_wme_tx_queue_read,
+ .open = mac80211_open_file_generic,
+};
+#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(channel);
+ DEBUGFS_ADD(frequency);
+ DEBUGFS_ADD(radar_detect);
+ DEBUGFS_ADD(antenna_sel_tx);
+ DEBUGFS_ADD(antenna_sel_rx);
+ DEBUGFS_ADD(bridge_packets);
+ DEBUGFS_ADD(key_tx_rx_threshold);
+ 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(mode);
+ DEBUGFS_ADD(wep_iv);
+ DEBUGFS_ADD(tx_power_reduction);
+ DEBUGFS_ADD(modes);
+
+ 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);
+ DEBUGFS_STATS_ADD(wme_tx_queue);
+ DEBUGFS_STATS_ADD(wme_rx_queue);
+#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(channel);
+ DEBUGFS_DEL(frequency);
+ DEBUGFS_DEL(radar_detect);
+ DEBUGFS_DEL(antenna_sel_tx);
+ DEBUGFS_DEL(antenna_sel_rx);
+ DEBUGFS_DEL(bridge_packets);
+ DEBUGFS_DEL(key_tx_rx_threshold);
+ 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(mode);
+ DEBUGFS_DEL(wep_iv);
+ DEBUGFS_DEL(tx_power_reduction);
+ DEBUGFS_DEL(modes);
+
+ 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);
+ DEBUGFS_STATS_DEL(wme_tx_queue);
+ DEBUGFS_STATS_DEL(wme_rx_queue);
+#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;
+}