| |
| /* |
| * 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" |
| |
| 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) \ |
| 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(frequency, 20, "%d", |
| local->hw.conf.channel->center_freq); |
| DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d", |
| local->total_ps_buffered); |
| DEBUGFS_READONLY_FILE(wep_iv, 20, "%#08x", |
| local->wep_iv & 0xffffff); |
| DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s", |
| local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver"); |
| |
| static ssize_t tsf_read(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ieee80211_local *local = file->private_data; |
| u64 tsf; |
| char buf[100]; |
| |
| tsf = drv_get_tsf(local); |
| |
| snprintf(buf, sizeof(buf), "0x%016llx\n", (unsigned long long) tsf); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, 19); |
| } |
| |
| static ssize_t tsf_write(struct file *file, |
| const char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ieee80211_local *local = file->private_data; |
| unsigned long long tsf; |
| char buf[100]; |
| size_t len; |
| |
| len = min(count, sizeof(buf) - 1); |
| if (copy_from_user(buf, user_buf, len)) |
| return -EFAULT; |
| buf[len] = '\0'; |
| |
| if (strncmp(buf, "reset", 5) == 0) { |
| if (local->ops->reset_tsf) { |
| drv_reset_tsf(local); |
| printk(KERN_INFO "%s: debugfs reset TSF\n", wiphy_name(local->hw.wiphy)); |
| } |
| } else { |
| tsf = simple_strtoul(buf, NULL, 0); |
| if (local->ops->set_tsf) { |
| drv_set_tsf(local, tsf); |
| printk(KERN_INFO "%s: debugfs set TSF to %#018llx\n", wiphy_name(local->hw.wiphy), tsf); |
| } |
| } |
| |
| return count; |
| } |
| |
| static const struct file_operations tsf_ops = { |
| .read = tsf_read, |
| .write = tsf_write, |
| .open = mac80211_open_file_generic |
| }; |
| |
| 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); |
| __ieee80211_resume(&local->hw); |
| rtnl_unlock(); |
| |
| return count; |
| } |
| |
| static const struct file_operations reset_ops = { |
| .write = reset_write, |
| .open = mac80211_open_file_generic, |
| }; |
| |
| static ssize_t noack_read(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ieee80211_local *local = file->private_data; |
| int res; |
| char buf[10]; |
| |
| res = scnprintf(buf, sizeof(buf), "%d\n", local->wifi_wme_noack_test); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, res); |
| } |
| |
| static ssize_t noack_write(struct file *file, |
| const char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ieee80211_local *local = file->private_data; |
| char buf[10]; |
| size_t len; |
| |
| len = min(count, sizeof(buf) - 1); |
| if (copy_from_user(buf, user_buf, len)) |
| return -EFAULT; |
| buf[len] = '\0'; |
| |
| local->wifi_wme_noack_test = !!simple_strtoul(buf, NULL, 0); |
| |
| return count; |
| } |
| |
| static const struct file_operations noack_ops = { |
| .read = noack_read, |
| .write = noack_write, |
| .open = mac80211_open_file_generic |
| }; |
| |
| 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); |
| } |
| |
| static const struct file_operations queues_ops = { |
| .read = queues_read, |
| .open = mac80211_open_file_generic |
| }; |
| |
| /* 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; |
| |
| 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 = mac80211_open_file_generic, \ |
| }; |
| |
| #define DEBUGFS_STATS_ADD(name) \ |
| debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops); |
| |
| 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); |
| #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(total_ps_buffered); |
| DEBUGFS_ADD(wep_iv); |
| DEBUGFS_ADD(tsf); |
| DEBUGFS_ADD(queues); |
| DEBUGFS_ADD_MODE(reset, 0200); |
| DEBUGFS_ADD(noack); |
| |
| 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); |
| 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); |
| #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); |
| } |