litmus-rt.git - The LITMUS^RT kernel.

diff options

author	Linus Torvalds <torvalds@linux-foundation.org>	2010-03-03 11:53:49 -0500
committer	Linus Torvalds <torvalds@linux-foundation.org>	2010-03-03 11:53:49 -0500
commit	feaf77d51a6e2e95f60c8095ac7282e610ede798 (patch)
tree	77f446c0ac5d58eeb725975a1b579eda22f1f2e5 /include/linux/limits.h
parent	eca281aad0c293e7698edea5834c252dd8108afa (diff)
parent	0d561f12b490dd2b993d73112d3297007688e6df (diff)

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2: nilfs2: add reader's lock for cno in nilfs_ioctl_sync nilfs2: delete unnecessary condition in load_segment_summary nilfs2: move iterator to write log into segment buffer nilfs2: get rid of s_dirt flag use nilfs2: get rid of nilfs_segctor_req struct nilfs2: delete unnecessary condition in nilfs_dat_translate nilfs2: fix potential hang in nilfs_error on errors=remount-ro nilfs2: use mnt_want_write in ioctls where write access is needed nilfs2: issue discard request after cleaning segments

Diffstat (limited to 'include/linux/limits.h')

0 files changed, 0 insertions, 0 deletions

/* * Copyright 2003-2005 Devicescape Software, Inc. * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/debugfs.h> #include <linux/ieee80211.h> #include "ieee80211_i.h" #include "debugfs.h" #include "debugfs_sta.h" #include "sta_info.h" /* sta attributtes */ #define STA_READ(name, buflen, field, format_string) \ static ssize_t sta_ ##name## _read(struct file *file, \ char __user *userbuf, \ size_t count, loff_t *ppos) \ { \ int res; \ struct sta_info *sta = file->private_data; \ char buf[buflen]; \ res = scnprintf(buf, buflen, format_string, sta->field); \ return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ } #define STA_READ_D(name, field) STA_READ(name, 20, field, "%d\n") #define STA_READ_U(name, field) STA_READ(name, 20, field, "%u\n") #define STA_READ_S(name, field) STA_READ(name, 20, field, "%s\n") #define STA_OPS(name) \ static const struct file_operations sta_ ##name## _ops = { \ .read = sta_##name##_read, \ .open = mac80211_open_file_generic, \ .llseek = generic_file_llseek, \ } #define STA_OPS_RW(name) \ static const struct file_operations sta_ ##name## _ops = { \ .read = sta_##name##_read, \ .write = sta_##name##_write, \ .open = mac80211_open_file_generic, \ .llseek = generic_file_llseek, \ } #define STA_FILE(name, field, format) \ STA_READ_##format(name, field) \ STA_OPS(name) STA_FILE(aid, sta.aid, D); STA_FILE(dev, sdata->name, S); STA_FILE(last_signal, last_signal, D); static ssize_t sta_flags_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { char buf[100]; struct sta_info *sta = file->private_data; u32 staflags = get_sta_flags(sta); int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s", staflags & WLAN_STA_AUTH ? "AUTH\n" : "", staflags & WLAN_STA_ASSOC ? "ASSOC\n" : "", staflags & WLAN_STA_PS_STA ? "PS (sta)\n" : "", staflags & WLAN_STA_PS_DRIVER ? "PS (driver)\n" : "", staflags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "", staflags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "", staflags & WLAN_STA_WME ? "WME\n" : "", staflags & WLAN_STA_WDS ? "WDS\n" : "", staflags & WLAN_STA_MFP ? "MFP\n" : ""); return simple_read_from_buffer(userbuf, count, ppos, buf, res); } STA_OPS(flags); static ssize_t sta_num_ps_buf_frames_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { char buf[20]; struct sta_info *sta = file->private_data; int res = scnprintf(buf, sizeof(buf), "%u\n", skb_queue_len(&sta->ps_tx_buf)); return simple_read_from_buffer(userbuf, count, ppos, buf, res); } STA_OPS(num_ps_buf_frames); static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { char buf[20]; struct sta_info *sta = file->private_data; int res = scnprintf(buf, sizeof(buf), "%d\n", jiffies_to_msecs(jiffies - sta->last_rx)); return simple_read_from_buffer(userbuf, count, ppos, buf, res); } STA_OPS(inactive_ms); static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { char buf[15*NUM_RX_DATA_QUEUES], *p = buf; int i; struct sta_info *sta = file->private_data; for (i = 0; i < NUM_RX_DATA_QUEUES; i++) p += scnprintf(p, sizeof(buf)+buf-p, "%x ", le16_to_cpu(sta->last_seq_ctrl[i])); p += scnprintf(p, sizeof(buf)+buf-p, "\n"); return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); } STA_OPS(last_seq_ctrl); static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { char buf[71 + STA_TID_NUM * 40], *p = buf; int i; struct sta_info *sta = file->private_data; spin_lock_bh(&sta->lock); p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n", sta->ampdu_mlme.dialog_token_allocator + 1); p += scnprintf(p, sizeof(buf) + buf - p, "TID\t\tRX active\tDTKN\tSSN\t\tTX\tDTKN\tpending\n"); for (i = 0; i < STA_TID_NUM; i++) { p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i); p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!sta->ampdu_mlme.tid_rx[i]); p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x", sta->ampdu_mlme.tid_rx[i] ? sta->ampdu_mlme.tid_rx[i]->dialog_token : 0); p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x", sta->ampdu_mlme.tid_rx[i] ? sta->ampdu_mlme.tid_rx[i]->ssn : 0); p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!sta->ampdu_mlme.tid_tx[i]); p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x", sta->ampdu_mlme.tid_tx[i] ? sta->ampdu_mlme.tid_tx[i]->dialog_token : 0); p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d", sta->ampdu_mlme.tid_tx[i] ? skb_queue_len(&sta->ampdu_mlme.tid_tx[i]->pending) : 0); p += scnprintf(p, sizeof(buf) + buf - p, "\n"); } spin_unlock_bh(&sta->lock); return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); } static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf, size_t count, loff_t *ppos) { char _buf[12], *buf = _buf; struct sta_info *sta = file->private_data; bool start, tx; unsigned long tid; int ret; if (count > sizeof(_buf)) return -EINVAL; if (copy_from_user(buf, userbuf, count)) return -EFAULT; buf[sizeof(_buf) - 1] = '\0'; if (strncmp(buf, "tx ", 3) == 0) { buf += 3; tx = true; } else if (strncmp(buf, "rx ", 3) == 0) { buf += 3; tx = false; } else return -EINVAL; if (strncmp(buf, "start ", 6) == 0) { buf += 6; start = true; if (!tx) return -EINVAL; } else if (strncmp(buf, "stop ", 5) == 0) { buf += 5; start = false; } else return -EINVAL; tid = simple_strtoul(buf, NULL, 0); if (tid >= STA_TID_NUM) return -EINVAL; if (tx) { if (start) ret = ieee80211_start_tx_ba_session(&sta->sta, tid); else ret = ieee80211_stop_tx_ba_session(&sta->sta, tid); } else { __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, 3, true); ret = 0; } return ret ?: count; } STA_OPS_RW(agg_status); static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { #define PRINT_HT_CAP(_cond, _str) \ do { \ if (_cond) \ p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \ } while (0) char buf[512], *p = buf; int i; struct sta_info *sta = file->private_data; struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap; p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n", htc->ht_supported ? "" : "not "); if (htc->ht_supported) { p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap); PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC"); PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40"); PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20"); PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save"); PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save"); PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled"); PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield"); PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI"); PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI"); PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC"); PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC"); PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream"); PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams"); PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams"); PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack"); PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: " "3839 bytes"); PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: " "7935 bytes"); /* * For beacons and probe response this would mean the BSS * does or does not allow the usage of DSSS/CCK HT40. * Otherwise it means the STA does or does not use * DSSS/CCK HT40. */ PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40"); PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40"); /* BIT(13) is reserved */ PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant"); PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection"); p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n", htc->ampdu_factor, htc->ampdu_density); p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:"); for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) p += scnprintf(p, sizeof(buf)+buf-p, " %.2x", htc->mcs.rx_mask[i]); p += scnprintf(p, sizeof(buf)+buf-p, "\n"); /* If not set this is meaningless */ if (le16_to_cpu(htc->mcs.rx_highest)) { p += scnprintf(p, sizeof(buf)+buf-p, "MCS rx highest: %d Mbps\n", le16_to_cpu(htc->mcs.rx_highest)); } p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n", htc->mcs.tx_params); } return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); } STA_OPS(ht_capa); #define DEBUGFS_ADD(name) \ debugfs_create_file(#name, 0400, \ sta->debugfs.dir, sta, &sta_ ##name## _ops); #define DEBUGFS_ADD_COUNTER(name, field) \ if (sizeof(sta->field) == sizeof(u32)) \ debugfs_create_u32(#name, 0400, sta->debugfs.dir, \ (u32 *) &sta->field); \ else \ debugfs_create_u64(#name, 0400, sta->debugfs.dir, \ (u64 *) &sta->field); void ieee80211_sta_debugfs_add(struct sta_info *sta) { struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations; u8 mac[3*ETH_ALEN]; sta->debugfs.add_has_run = true; if (!stations_dir) return; snprintf(mac, sizeof(mac), "%pM", sta->sta.addr); /* * This might fail due to a race condition: * When mac80211 unlinks a station, the debugfs entries * remain, but it is already possible to link a new * station with the same address which triggers adding * it to debugfs; therefore, if the old station isn't * destroyed quickly enough the old station's debugfs * dir might still be around. */ sta->debugfs.dir = debugfs_create_dir(mac, stations_dir); if (!sta->debugfs.dir) return; DEBUGFS_ADD(flags); DEBUGFS_ADD(num_ps_buf_frames); DEBUGFS_ADD(inactive_ms); DEBUGFS_ADD(last_seq_ctrl); DEBUGFS_ADD(agg_status); DEBUGFS_ADD(dev); DEBUGFS_ADD(last_signal); DEBUGFS_ADD(ht_capa); DEBUGFS_ADD_COUNTER(rx_packets, rx_packets); DEBUGFS_ADD_COUNTER(tx_packets, tx_packets); DEBUGFS_ADD_COUNTER(rx_bytes, rx_bytes); DEBUGFS_ADD_COUNTER(tx_bytes, tx_bytes); DEBUGFS_ADD_COUNTER(rx_duplicates, num_duplicates); DEBUGFS_ADD_COUNTER(rx_fragments, rx_fragments); DEBUGFS_ADD_COUNTER(rx_dropped, rx_dropped); DEBUGFS_ADD_COUNTER(tx_fragments, tx_fragments); DEBUGFS_ADD_COUNTER(tx_filtered, tx_filtered_count); DEBUGFS_ADD_COUNTER(tx_retry_failed, tx_retry_failed); DEBUGFS_ADD_COUNTER(tx_retry_count, tx_retry_count); DEBUGFS_ADD_COUNTER(wep_weak_iv_count, wep_weak_iv_count); } void ieee80211_sta_debugfs_remove(struct sta_info *sta) { debugfs_remove_recursive(sta->debugfs.dir); sta->debugfs.dir = NULL; }


context:
space:
mode: