| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Wey-Yi Guy | 5488 | 36.98% | 57 | 34.76% |
| Tomas Winkler | 4709 | 31.73% | 14 | 8.54% |
| Abhijeet Kolekar | 2277 | 15.34% | 2 | 1.22% |
| Johannes Berg | 754 | 5.08% | 35 | 21.34% |
| Yi Zhu | 422 | 2.84% | 2 | 1.22% |
| Ester Kummer | 281 | 1.89% | 2 | 1.22% |
| Jay Sternberg | 218 | 1.47% | 2 | 1.22% |
| Emmanuel Grumbach | 192 | 1.29% | 17 | 10.37% |
| Meenakshi Venkataraman | 109 | 0.73% | 3 | 1.83% |
| Trieu 'Andrew' Nguyen | 84 | 0.57% | 1 | 0.61% |
| Dor Shaish | 76 | 0.51% | 1 | 0.61% |
| David Spinadel | 72 | 0.49% | 3 | 1.83% |
| Joe Perches | 35 | 0.24% | 1 | 0.61% |
| Richard A. Griffiths | 21 | 0.14% | 1 | 0.61% |
| Reinette Chatre | 21 | 0.14% | 2 | 1.22% |
| Don Fry | 14 | 0.09% | 3 | 1.83% |
| Julia Lawall | 13 | 0.09% | 1 | 0.61% |
| Stanislaw Gruszka | 8 | 0.05% | 3 | 1.83% |
| Eytan Lifshitz | 8 | 0.05% | 1 | 0.61% |
| Sharon Dvir | 8 | 0.05% | 1 | 0.61% |
| Christoph Hellwig | 5 | 0.03% | 1 | 0.61% |
| Mohamed Abbas | 5 | 0.03% | 1 | 0.61% |
| Luis R. Rodriguez | 4 | 0.03% | 1 | 0.61% |
| Ron Rindjunsky | 4 | 0.03% | 1 | 0.61% |
| Greg Kroah-Hartman | 3 | 0.02% | 1 | 0.61% |
| Andy Shevchenko | 2 | 0.01% | 1 | 0.61% |
| Shanyu Zhao | 2 | 0.01% | 1 | 0.61% |
| Linus Torvalds (pre-git) | 2 | 0.01% | 1 | 0.61% |
| Linus Torvalds | 1 | 0.01% | 1 | 0.61% |
| Al Viro | 1 | 0.01% | 1 | 0.61% |
| Luciano Coelho | 1 | 0.01% | 1 | 0.61% |
| Thomas Gleixner | 1 | 0.01% | 1 | 0.61% |
| Total | 14841 | 164 |
// SPDX-License-Identifier: GPL-2.0-only /****************************************************************************** * * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * Copyright (C) 2018 Intel Corporation *****************************************************************************/ #include <linux/slab.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/debugfs.h> #include <linux/ieee80211.h> #include <net/mac80211.h> #include "iwl-debug.h" #include "iwl-trans.h" #include "iwl-io.h" #include "dev.h" #include "agn.h" /* create and remove of files */ #define DEBUGFS_ADD_FILE(name, parent, mode) do { \ debugfs_create_file(#name, mode, parent, priv, \ &iwl_dbgfs_##name##_ops); \ } while (0) /* file operation */ #define DEBUGFS_READ_FILE_OPS(name) \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .read = iwl_dbgfs_##name##_read, \ .open = simple_open, \ .llseek = generic_file_llseek, \ }; #define DEBUGFS_WRITE_FILE_OPS(name) \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .write = iwl_dbgfs_##name##_write, \ .open = simple_open, \ .llseek = generic_file_llseek, \ }; #define DEBUGFS_READ_WRITE_FILE_OPS(name) \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .write = iwl_dbgfs_##name##_write, \ .read = iwl_dbgfs_##name##_read, \ .open = simple_open, \ .llseek = generic_file_llseek, \ }; static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { u32 val = 0; char *buf; ssize_t ret; int i = 0; bool device_format = false; int offset = 0; int len = 0; int pos = 0; int sram; struct iwl_priv *priv = file->private_data; const struct fw_img *img; size_t bufsz; if (!iwl_is_ready_rf(priv)) return -EAGAIN; /* default is to dump the entire data segment */ if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) { priv->dbgfs_sram_offset = 0x800000; if (!priv->ucode_loaded) return -EINVAL; img = &priv->fw->img[priv->cur_ucode]; priv->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len; } len = priv->dbgfs_sram_len; if (len == -4) { device_format = true; len = 4; } bufsz = 50 + len * 4; buf = kmalloc(bufsz, GFP_KERNEL); if (!buf) return -ENOMEM; pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n", len); pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n", priv->dbgfs_sram_offset); /* adjust sram address since reads are only on even u32 boundaries */ offset = priv->dbgfs_sram_offset & 0x3; sram = priv->dbgfs_sram_offset & ~0x3; /* read the first u32 from sram */ val = iwl_trans_read_mem32(priv->trans, sram); for (; len; len--) { /* put the address at the start of every line */ if (i == 0) pos += scnprintf(buf + pos, bufsz - pos, "%08X: ", sram + offset); if (device_format) pos += scnprintf(buf + pos, bufsz - pos, "%02x", (val >> (8 * (3 - offset))) & 0xff); else pos += scnprintf(buf + pos, bufsz - pos, "%02x ", (val >> (8 * offset)) & 0xff); /* if all bytes processed, read the next u32 from sram */ if (++offset == 4) { sram += 4; offset = 0; val = iwl_trans_read_mem32(priv->trans, sram); } /* put in extra spaces and split lines for human readability */ if (++i == 16) { i = 0; pos += scnprintf(buf + pos, bufsz - pos, "\n"); } else if (!(i & 7)) { pos += scnprintf(buf + pos, bufsz - pos, " "); } else if (!(i & 3)) { pos += scnprintf(buf + pos, bufsz - pos, " "); } } if (i) pos += scnprintf(buf + pos, bufsz - pos, "\n"); ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); kfree(buf); return ret; } static ssize_t iwl_dbgfs_sram_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[64]; int buf_size; u32 offset, len; memset(buf, 0, sizeof(buf)); buf_size = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, buf_size)) return -EFAULT; if (sscanf(buf, "%x,%x", &offset, &len) == 2) { priv->dbgfs_sram_offset = offset; priv->dbgfs_sram_len = len; } else if (sscanf(buf, "%x", &offset) == 1) { priv->dbgfs_sram_offset = offset; priv->dbgfs_sram_len = -4; } else { priv->dbgfs_sram_offset = 0; priv->dbgfs_sram_len = 0; } return count; } static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; const struct fw_img *img = &priv->fw->img[IWL_UCODE_WOWLAN]; if (!priv->wowlan_sram) return -ENODATA; return simple_read_from_buffer(user_buf, count, ppos, priv->wowlan_sram, img->sec[IWL_UCODE_SECTION_DATA].len); } static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; struct iwl_station_entry *station; struct iwl_tid_data *tid_data; char *buf; int i, j, pos = 0; ssize_t ret; /* Add 30 for initial string */ const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations); buf = kmalloc(bufsz, GFP_KERNEL); if (!buf) return -ENOMEM; pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n", priv->num_stations); for (i = 0; i < IWLAGN_STATION_COUNT; i++) { station = &priv->stations[i]; if (!station->used) continue; pos += scnprintf(buf + pos, bufsz - pos, "station %d - addr: %pM, flags: %#x\n", i, station->sta.sta.addr, station->sta.station_flags_msk); pos += scnprintf(buf + pos, bufsz - pos, "TID seqno next_rclmd " "rate_n_flags state txq\n"); for (j = 0; j < IWL_MAX_TID_COUNT; j++) { tid_data = &priv->tid_data[i][j]; pos += scnprintf(buf + pos, bufsz - pos, "%d: 0x%.4x 0x%.4x 0x%.8x " "%d %.2d", j, tid_data->seq_number, tid_data->next_reclaimed, tid_data->agg.rate_n_flags, tid_data->agg.state, tid_data->agg.txq_id); if (tid_data->agg.wait_for_ba) pos += scnprintf(buf + pos, bufsz - pos, " - waitforba"); pos += scnprintf(buf + pos, bufsz - pos, "\n"); } pos += scnprintf(buf + pos, bufsz - pos, "\n"); } ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); kfree(buf); return ret; } static ssize_t iwl_dbgfs_nvm_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { ssize_t ret; struct iwl_priv *priv = file->private_data; int pos = 0, ofs = 0, buf_size = 0; const u8 *ptr; char *buf; u16 nvm_ver; size_t eeprom_len = priv->eeprom_blob_size; buf_size = 4 * eeprom_len + 256; if (eeprom_len % 16) return -ENODATA; ptr = priv->eeprom_blob; if (!ptr) return -ENOMEM; /* 4 characters for byte 0xYY */ buf = kzalloc(buf_size, GFP_KERNEL); if (!buf) return -ENOMEM; nvm_ver = priv->nvm_data->nvm_version; pos += scnprintf(buf + pos, buf_size - pos, "NVM version: 0x%x\n", nvm_ver); for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) { pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x %16ph\n", ofs, ptr + ofs); } ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); kfree(buf); return ret; } static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; struct ieee80211_channel *channels = NULL; const struct ieee80211_supported_band *supp_band = NULL; int pos = 0, i, bufsz = PAGE_SIZE; char *buf; ssize_t ret; buf = kzalloc(bufsz, GFP_KERNEL); if (!buf) return -ENOMEM; supp_band = iwl_get_hw_mode(priv, NL80211_BAND_2GHZ); if (supp_band) { channels = supp_band->channels; pos += scnprintf(buf + pos, bufsz - pos, "Displaying %d channels in 2.4GHz band 802.11bg):\n", supp_band->n_channels); for (i = 0; i < supp_band->n_channels; i++) pos += scnprintf(buf + pos, bufsz - pos, "%d: %ddBm: BSS%s%s, %s.\n", channels[i].hw_value, channels[i].max_power, channels[i].flags & IEEE80211_CHAN_RADAR ? " (IEEE 802.11h required)" : "", ((channels[i].flags & IEEE80211_CHAN_NO_IR) || (channels[i].flags & IEEE80211_CHAN_RADAR)) ? "" : ", IBSS", channels[i].flags & IEEE80211_CHAN_NO_IR ? "passive only" : "active/passive"); } supp_band = iwl_get_hw_mode(priv, NL80211_BAND_5GHZ); if (supp_band) { channels = supp_band->channels; pos += scnprintf(buf + pos, bufsz - pos, "Displaying %d channels in 5.2GHz band (802.11a)\n", supp_band->n_channels); for (i = 0; i < supp_band->n_channels; i++) pos += scnprintf(buf + pos, bufsz - pos, "%d: %ddBm: BSS%s%s, %s.\n", channels[i].hw_value, channels[i].max_power, channels[i].flags & IEEE80211_CHAN_RADAR ? " (IEEE 802.11h required)" : "", ((channels[i].flags & IEEE80211_CHAN_NO_IR) || (channels[i].flags & IEEE80211_CHAN_RADAR)) ? "" : ", IBSS", channels[i].flags & IEEE80211_CHAN_NO_IR ? "passive only" : "active/passive"); } ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); kfree(buf); return ret; } static ssize_t iwl_dbgfs_status_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[512]; int pos = 0; const size_t bufsz = sizeof(buf); pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n", test_bit(STATUS_RF_KILL_HW, &priv->status)); pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n", test_bit(STATUS_CT_KILL, &priv->status)); pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n", test_bit(STATUS_ALIVE, &priv->status)); pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n", test_bit(STATUS_READY, &priv->status)); pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n", test_bit(STATUS_EXIT_PENDING, &priv->status)); pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n", test_bit(STATUS_STATISTICS, &priv->status)); pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n", test_bit(STATUS_SCANNING, &priv->status)); pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n", test_bit(STATUS_SCAN_ABORTING, &priv->status)); pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n", test_bit(STATUS_SCAN_HW, &priv->status)); pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n", test_bit(STATUS_POWER_PMI, &priv->status)); pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n", test_bit(STATUS_FW_ERROR, &priv->status)); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_rx_handlers_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; int pos = 0; int cnt = 0; char *buf; int bufsz = 24 * 64; /* 24 items * 64 char per item */ ssize_t ret; buf = kzalloc(bufsz, GFP_KERNEL); if (!buf) return -ENOMEM; for (cnt = 0; cnt < REPLY_MAX; cnt++) { if (priv->rx_handlers_stats[cnt] > 0) pos += scnprintf(buf + pos, bufsz - pos, "\tRx handler[%36s]:\t\t %u\n", iwl_get_cmd_string(priv->trans, (u32)cnt), priv->rx_handlers_stats[cnt]); } ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); kfree(buf); return ret; } static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[8]; int buf_size; u32 reset_flag; memset(buf, 0, sizeof(buf)); buf_size = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, buf_size)) return -EFAULT; if (sscanf(buf, "%x", &reset_flag) != 1) return -EFAULT; if (reset_flag == 0) memset(&priv->rx_handlers_stats[0], 0, sizeof(priv->rx_handlers_stats)); return count; } static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; struct iwl_rxon_context *ctx; int pos = 0, i; char buf[256 * NUM_IWL_RXON_CTX]; const size_t bufsz = sizeof(buf); for_each_context(priv, ctx) { pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n", ctx->ctxid); for (i = 0; i < AC_NUM; i++) { pos += scnprintf(buf + pos, bufsz - pos, "\tcw_min\tcw_max\taifsn\ttxop\n"); pos += scnprintf(buf + pos, bufsz - pos, "AC[%d]\t%u\t%u\t%u\t%u\n", i, ctx->qos_data.def_qos_parm.ac[i].cw_min, ctx->qos_data.def_qos_parm.ac[i].cw_max, ctx->qos_data.def_qos_parm.ac[i].aifsn, ctx->qos_data.def_qos_parm.ac[i].edca_txop); } pos += scnprintf(buf + pos, bufsz - pos, "\n"); } return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; struct iwl_tt_mgmt *tt = &priv->thermal_throttle; struct iwl_tt_restriction *restriction; char buf[100]; int pos = 0; const size_t bufsz = sizeof(buf); pos += scnprintf(buf + pos, bufsz - pos, "Thermal Throttling Mode: %s\n", tt->advanced_tt ? "Advance" : "Legacy"); pos += scnprintf(buf + pos, bufsz - pos, "Thermal Throttling State: %d\n", tt->state); if (tt->advanced_tt) { restriction = tt->restriction + tt->state; pos += scnprintf(buf + pos, bufsz - pos, "Tx mode: %d\n", restriction->tx_stream); pos += scnprintf(buf + pos, bufsz - pos, "Rx mode: %d\n", restriction->rx_stream); pos += scnprintf(buf + pos, bufsz - pos, "HT mode: %d\n", restriction->is_ht); } return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[8]; int buf_size; int ht40; memset(buf, 0, sizeof(buf)); buf_size = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, buf_size)) return -EFAULT; if (sscanf(buf, "%d", &ht40) != 1) return -EFAULT; if (!iwl_is_any_associated(priv)) priv->disable_ht40 = ht40 ? true : false; else return -EINVAL; return count; } static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[100]; int pos = 0; const size_t bufsz = sizeof(buf); pos += scnprintf(buf + pos, bufsz - pos, "11n 40MHz Mode: %s\n", priv->disable_ht40 ? "Disabled" : "Enabled"); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_temperature_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[8]; int pos = 0; const size_t bufsz = sizeof(buf); pos += scnprintf(buf + pos, bufsz - pos, "%d\n", priv->temperature); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[8]; int buf_size; int value; memset(buf, 0, sizeof(buf)); buf_size = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, buf_size)) return -EFAULT; if (sscanf(buf, "%d", &value) != 1) return -EINVAL; /* * Our users expect 0 to be "CAM", but 0 isn't actually * valid here. However, let's not confuse them and present * IWL_POWER_INDEX_1 as "1", not "0". */ if (value == 0) return -EINVAL; else if (value > 0) value -= 1; if (value != -1 && (value < 0 || value >= IWL_POWER_NUM)) return -EINVAL; if (!iwl_is_ready_rf(priv)) return -EAGAIN; priv->power_data.debug_sleep_level_override = value; mutex_lock(&priv->mutex); iwl_power_update_mode(priv, true); mutex_unlock(&priv->mutex); return count; } static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[10]; int pos, value; const size_t bufsz = sizeof(buf); /* see the write function */ value = priv->power_data.debug_sleep_level_override; if (value >= 0) value += 1; pos = scnprintf(buf, bufsz, "%d\n", value); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[200]; int pos = 0, i; const size_t bufsz = sizeof(buf); struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd; pos += scnprintf(buf + pos, bufsz - pos, "flags: %#.2x\n", le16_to_cpu(cmd->flags)); pos += scnprintf(buf + pos, bufsz - pos, "RX/TX timeout: %d/%d usec\n", le32_to_cpu(cmd->rx_data_timeout), le32_to_cpu(cmd->tx_data_timeout)); for (i = 0; i < IWL_POWER_VEC_SIZE; i++) pos += scnprintf(buf + pos, bufsz - pos, "sleep_interval[%d]: %d\n", i, le32_to_cpu(cmd->sleep_interval[i])); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } DEBUGFS_READ_WRITE_FILE_OPS(sram); DEBUGFS_READ_FILE_OPS(wowlan_sram); DEBUGFS_READ_FILE_OPS(nvm); DEBUGFS_READ_FILE_OPS(stations); DEBUGFS_READ_FILE_OPS(channels); DEBUGFS_READ_FILE_OPS(status); DEBUGFS_READ_WRITE_FILE_OPS(rx_handlers); DEBUGFS_READ_FILE_OPS(qos); DEBUGFS_READ_FILE_OPS(thermal_throttling); DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40); DEBUGFS_READ_FILE_OPS(temperature); DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override); DEBUGFS_READ_FILE_OPS(current_sleep_command); #define fmt_value " %-30s %10u\n" #define fmt_hex " %-30s 0x%02X\n" #define fmt_table " %-30s %10u %10u %10u %10u\n" #define fmt_header "%-32s current cumulative delta max\n" static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz) { int p = 0; u32 flag; lockdep_assert_held(&priv->statistics.lock); flag = le32_to_cpu(priv->statistics.flag); p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag); if (flag & UCODE_STATISTICS_CLEAR_MSK) p += scnprintf(buf + p, bufsz - p, "\tStatistics have been cleared\n"); p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n", (flag & UCODE_STATISTICS_FREQUENCY_MSK) ? "2.4 GHz" : "5.2 GHz"); p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n", (flag & UCODE_STATISTICS_NARROW_BAND_MSK) ? "enabled" : "disabled"); return p; } static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; int pos = 0; char *buf; int bufsz = sizeof(struct statistics_rx_phy) * 40 + sizeof(struct statistics_rx_non_phy) * 40 + sizeof(struct statistics_rx_ht_phy) * 40 + 400; ssize_t ret; struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm; struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck; struct statistics_rx_non_phy *general, *accum_general; struct statistics_rx_non_phy *delta_general, *max_general; struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht; if (!iwl_is_alive(priv)) return -EAGAIN; buf = kzalloc(bufsz, GFP_KERNEL); if (!buf) return -ENOMEM; /* * the statistic information display here is based on * the last statistics notification from uCode * might not reflect the current uCode activity */ spin_lock_bh(&priv->statistics.lock); ofdm = &priv->statistics.rx_ofdm; cck = &priv->statistics.rx_cck; general = &priv->statistics.rx_non_phy; ht = &priv->statistics.rx_ofdm_ht; accum_ofdm = &priv->accum_stats.rx_ofdm; accum_cck = &priv->accum_stats.rx_cck; accum_general = &priv->accum_stats.rx_non_phy; accum_ht = &priv->accum_stats.rx_ofdm_ht; delta_ofdm = &priv->delta_stats.rx_ofdm; delta_cck = &priv->delta_stats.rx_cck; delta_general = &priv->delta_stats.rx_non_phy; delta_ht = &priv->delta_stats.rx_ofdm_ht; max_ofdm = &priv->max_delta_stats.rx_ofdm; max_cck = &priv->max_delta_stats.rx_cck; max_general = &priv->max_delta_stats.rx_non_phy; max_ht = &priv->max_delta_stats.rx_ofdm_ht; pos += iwl_statistics_flag(priv, buf, bufsz); pos += scnprintf(buf + pos, bufsz - pos, fmt_header, "Statistics_Rx - OFDM:"); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "ina_cnt:", le32_to_cpu(ofdm->ina_cnt), accum_ofdm->ina_cnt, delta_ofdm->ina_cnt, max_ofdm->ina_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_cnt:", le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt, delta_ofdm->fina_cnt, max_ofdm->fina_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "plcp_err:", le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err, delta_ofdm->plcp_err, max_ofdm->plcp_err); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_err:", le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err, delta_ofdm->crc32_err, max_ofdm->crc32_err); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "overrun_err:", le32_to_cpu(ofdm->overrun_err), accum_ofdm->overrun_err, delta_ofdm->overrun_err, max_ofdm->overrun_err); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "early_overrun_err:", le32_to_cpu(ofdm->early_overrun_err), accum_ofdm->early_overrun_err, delta_ofdm->early_overrun_err, max_ofdm->early_overrun_err); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_good:", le32_to_cpu(ofdm->crc32_good), accum_ofdm->crc32_good, delta_ofdm->crc32_good, max_ofdm->crc32_good); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "false_alarm_cnt:", le32_to_cpu(ofdm->false_alarm_cnt), accum_ofdm->false_alarm_cnt, delta_ofdm->false_alarm_cnt, max_ofdm->false_alarm_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_sync_err_cnt:", le32_to_cpu(ofdm->fina_sync_err_cnt), accum_ofdm->fina_sync_err_cnt, delta_ofdm->fina_sync_err_cnt, max_ofdm->fina_sync_err_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "sfd_timeout:", le32_to_cpu(ofdm->sfd_timeout), accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout, max_ofdm->sfd_timeout); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_timeout:", le32_to_cpu(ofdm->fina_timeout), accum_ofdm->fina_timeout, delta_ofdm->fina_timeout, max_ofdm->fina_timeout); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "unresponded_rts:", le32_to_cpu(ofdm->unresponded_rts), accum_ofdm->unresponded_rts, delta_ofdm->unresponded_rts, max_ofdm->unresponded_rts); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "rxe_frame_lmt_ovrun:", le32_to_cpu(ofdm->rxe_frame_limit_overrun), accum_ofdm->rxe_frame_limit_overrun, delta_ofdm->rxe_frame_limit_overrun, max_ofdm->rxe_frame_limit_overrun); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_ack_cnt:", le32_to_cpu(ofdm->sent_ack_cnt), accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt, max_ofdm->sent_ack_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_cts_cnt:", le32_to_cpu(ofdm->sent_cts_cnt), accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt, max_ofdm->sent_cts_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_ba_rsp_cnt:", le32_to_cpu(ofdm->sent_ba_rsp_cnt), accum_ofdm->sent_ba_rsp_cnt, delta_ofdm->sent_ba_rsp_cnt, max_ofdm->sent_ba_rsp_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "dsp_self_kill:", le32_to_cpu(ofdm->dsp_self_kill), accum_ofdm->dsp_self_kill, delta_ofdm->dsp_self_kill, max_ofdm->dsp_self_kill); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "mh_format_err:", le32_to_cpu(ofdm->mh_format_err), accum_ofdm->mh_format_err, delta_ofdm->mh_format_err, max_ofdm->mh_format_err); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "re_acq_main_rssi_sum:", le32_to_cpu(ofdm->re_acq_main_rssi_sum), accum_ofdm->re_acq_main_rssi_sum, delta_ofdm->re_acq_main_rssi_sum, max_ofdm->re_acq_main_rssi_sum); pos += scnprintf(buf + pos, bufsz - pos, fmt_header, "Statistics_Rx - CCK:"); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "ina_cnt:", le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt, delta_cck->ina_cnt, max_cck->ina_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_cnt:", le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt, delta_cck->fina_cnt, max_cck->fina_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "plcp_err:", le32_to_cpu(cck->plcp_err), accum_cck->plcp_err, delta_cck->plcp_err, max_cck->plcp_err); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_err:", le32_to_cpu(cck->crc32_err), accum_cck->crc32_err, delta_cck->crc32_err, max_cck->crc32_err); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "overrun_err:", le32_to_cpu(cck->overrun_err), accum_cck->overrun_err, delta_cck->overrun_err, max_cck->overrun_err); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "early_overrun_err:", le32_to_cpu(cck->early_overrun_err), accum_cck->early_overrun_err, delta_cck->early_overrun_err, max_cck->early_overrun_err); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_good:", le32_to_cpu(cck->crc32_good), accum_cck->crc32_good, delta_cck->crc32_good, max_cck->crc32_good); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "false_alarm_cnt:", le32_to_cpu(cck->false_alarm_cnt), accum_cck->false_alarm_cnt, delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_sync_err_cnt:", le32_to_cpu(cck->fina_sync_err_cnt), accum_cck->fina_sync_err_cnt, delta_cck->fina_sync_err_cnt, max_cck->fina_sync_err_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "sfd_timeout:", le32_to_cpu(cck->sfd_timeout), accum_cck->sfd_timeout, delta_cck->sfd_timeout, max_cck->sfd_timeout); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_timeout:", le32_to_cpu(cck->fina_timeout), accum_cck->fina_timeout, delta_cck->fina_timeout, max_cck->fina_timeout); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "unresponded_rts:", le32_to_cpu(cck->unresponded_rts), accum_cck->unresponded_rts, delta_cck->unresponded_rts, max_cck->unresponded_rts); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "rxe_frame_lmt_ovrun:", le32_to_cpu(cck->rxe_frame_limit_overrun), accum_cck->rxe_frame_limit_overrun, delta_cck->rxe_frame_limit_overrun, max_cck->rxe_frame_limit_overrun); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_ack_cnt:", le32_to_cpu(cck->sent_ack_cnt), accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt, max_cck->sent_ack_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_cts_cnt:", le32_to_cpu(cck->sent_cts_cnt), accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt, max_cck->sent_cts_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_ba_rsp_cnt:", le32_to_cpu(cck->sent_ba_rsp_cnt), accum_cck->sent_ba_rsp_cnt, delta_cck->sent_ba_rsp_cnt, max_cck->sent_ba_rsp_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "dsp_self_kill:", le32_to_cpu(cck->dsp_self_kill), accum_cck->dsp_self_kill, delta_cck->dsp_self_kill, max_cck->dsp_self_kill); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "mh_format_err:", le32_to_cpu(cck->mh_format_err), accum_cck->mh_format_err, delta_cck->mh_format_err, max_cck->mh_format_err); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "re_acq_main_rssi_sum:", le32_to_cpu(cck->re_acq_main_rssi_sum), accum_cck->re_acq_main_rssi_sum, delta_cck->re_acq_main_rssi_sum, max_cck->re_acq_main_rssi_sum); pos += scnprintf(buf + pos, bufsz - pos, fmt_header, "Statistics_Rx - GENERAL:"); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "bogus_cts:", le32_to_cpu(general->bogus_cts), accum_general->bogus_cts, delta_general->bogus_cts, max_general->bogus_cts); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "bogus_ack:", le32_to_cpu(general->bogus_ack), accum_general->bogus_ack, delta_general->bogus_ack, max_general->bogus_ack); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "non_bssid_frames:", le32_to_cpu(general->non_bssid_frames), accum_general->non_bssid_frames, delta_general->non_bssid_frames, max_general->non_bssid_frames); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "filtered_frames:", le32_to_cpu(general->filtered_frames), accum_general->filtered_frames, delta_general->filtered_frames, max_general->filtered_frames); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "non_channel_beacons:", le32_to_cpu(general->non_channel_beacons), accum_general->non_channel_beacons, delta_general->non_channel_beacons, max_general->non_channel_beacons); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "channel_beacons:", le32_to_cpu(general->channel_beacons), accum_general->channel_beacons, delta_general->channel_beacons, max_general->channel_beacons); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "num_missed_bcon:", le32_to_cpu(general->num_missed_bcon), accum_general->num_missed_bcon, delta_general->num_missed_bcon, max_general->num_missed_bcon); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "adc_rx_saturation_time:", le32_to_cpu(general->adc_rx_saturation_time), accum_general->adc_rx_saturation_time, delta_general->adc_rx_saturation_time, max_general->adc_rx_saturation_time); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "ina_detect_search_tm:", le32_to_cpu(general->ina_detection_search_time), accum_general->ina_detection_search_time, delta_general->ina_detection_search_time, max_general->ina_detection_search_time); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_silence_rssi_a:", le32_to_cpu(general->beacon_silence_rssi_a), accum_general->beacon_silence_rssi_a, delta_general->beacon_silence_rssi_a, max_general->beacon_silence_rssi_a); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_silence_rssi_b:", le32_to_cpu(general->beacon_silence_rssi_b), accum_general->beacon_silence_rssi_b, delta_general->beacon_silence_rssi_b, max_general->beacon_silence_rssi_b); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_silence_rssi_c:", le32_to_cpu(general->beacon_silence_rssi_c), accum_general->beacon_silence_rssi_c, delta_general->beacon_silence_rssi_c, max_general->beacon_silence_rssi_c); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "interference_data_flag:", le32_to_cpu(general->interference_data_flag), accum_general->interference_data_flag, delta_general->interference_data_flag, max_general->interference_data_flag); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "channel_load:", le32_to_cpu(general->channel_load), accum_general->channel_load, delta_general->channel_load, max_general->channel_load); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "dsp_false_alarms:", le32_to_cpu(general->dsp_false_alarms), accum_general->dsp_false_alarms, delta_general->dsp_false_alarms, max_general->dsp_false_alarms); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_rssi_a:", le32_to_cpu(general->beacon_rssi_a), accum_general->beacon_rssi_a, delta_general->beacon_rssi_a, max_general->beacon_rssi_a); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_rssi_b:", le32_to_cpu(general->beacon_rssi_b), accum_general->beacon_rssi_b, delta_general->beacon_rssi_b, max_general->beacon_rssi_b); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_rssi_c:", le32_to_cpu(general->beacon_rssi_c), accum_general->beacon_rssi_c, delta_general->beacon_rssi_c, max_general->beacon_rssi_c); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_energy_a:", le32_to_cpu(general->beacon_energy_a), accum_general->beacon_energy_a, delta_general->beacon_energy_a, max_general->beacon_energy_a); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_energy_b:", le32_to_cpu(general->beacon_energy_b), accum_general->beacon_energy_b, delta_general->beacon_energy_b, max_general->beacon_energy_b); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_energy_c:", le32_to_cpu(general->beacon_energy_c), accum_general->beacon_energy_c, delta_general->beacon_energy_c, max_general->beacon_energy_c); pos += scnprintf(buf + pos, bufsz - pos, fmt_header, "Statistics_Rx - OFDM_HT:"); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "plcp_err:", le32_to_cpu(ht->plcp_err), accum_ht->plcp_err, delta_ht->plcp_err, max_ht->plcp_err); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "overrun_err:", le32_to_cpu(ht->overrun_err), accum_ht->overrun_err, delta_ht->overrun_err, max_ht->overrun_err); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "early_overrun_err:", le32_to_cpu(ht->early_overrun_err), accum_ht->early_overrun_err, delta_ht->early_overrun_err, max_ht->early_overrun_err); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_good:", le32_to_cpu(ht->crc32_good), accum_ht->crc32_good, delta_ht->crc32_good, max_ht->crc32_good); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_err:", le32_to_cpu(ht->crc32_err), accum_ht->crc32_err, delta_ht->crc32_err, max_ht->crc32_err); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "mh_format_err:", le32_to_cpu(ht->mh_format_err), accum_ht->mh_format_err, delta_ht->mh_format_err, max_ht->mh_format_err); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "agg_crc32_good:", le32_to_cpu(ht->agg_crc32_good), accum_ht->agg_crc32_good, delta_ht->agg_crc32_good, max_ht->agg_crc32_good); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "agg_mpdu_cnt:", le32_to_cpu(ht->agg_mpdu_cnt), accum_ht->agg_mpdu_cnt, delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "agg_cnt:", le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt, delta_ht->agg_cnt, max_ht->agg_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "unsupport_mcs:", le32_to_cpu(ht->unsupport_mcs), accum_ht->unsupport_mcs, delta_ht->unsupport_mcs, max_ht->unsupport_mcs); spin_unlock_bh(&priv->statistics.lock); ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); kfree(buf); return ret; } static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; int pos = 0; char *buf; int bufsz = (sizeof(struct statistics_tx) * 48) + 250; ssize_t ret; struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx; if (!iwl_is_alive(priv)) return -EAGAIN; buf = kzalloc(bufsz, GFP_KERNEL); if (!buf) return -ENOMEM; /* the statistic information display here is based on * the last statistics notification from uCode * might not reflect the current uCode activity */ spin_lock_bh(&priv->statistics.lock); tx = &priv->statistics.tx; accum_tx = &priv->accum_stats.tx; delta_tx = &priv->delta_stats.tx; max_tx = &priv->max_delta_stats.tx; pos += iwl_statistics_flag(priv, buf, bufsz); pos += scnprintf(buf + pos, bufsz - pos, fmt_header, "Statistics_Tx:"); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "preamble:", le32_to_cpu(tx->preamble_cnt), accum_tx->preamble_cnt, delta_tx->preamble_cnt, max_tx->preamble_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "rx_detected_cnt:", le32_to_cpu(tx->rx_detected_cnt), accum_tx->rx_detected_cnt, delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "bt_prio_defer_cnt:", le32_to_cpu(tx->bt_prio_defer_cnt), accum_tx->bt_prio_defer_cnt, delta_tx->bt_prio_defer_cnt, max_tx->bt_prio_defer_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "bt_prio_kill_cnt:", le32_to_cpu(tx->bt_prio_kill_cnt), accum_tx->bt_prio_kill_cnt, delta_tx->bt_prio_kill_cnt, max_tx->bt_prio_kill_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "few_bytes_cnt:", le32_to_cpu(tx->few_bytes_cnt), accum_tx->few_bytes_cnt, delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "cts_timeout:", le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout, delta_tx->cts_timeout, max_tx->cts_timeout); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "ack_timeout:", le32_to_cpu(tx->ack_timeout), accum_tx->ack_timeout, delta_tx->ack_timeout, max_tx->ack_timeout); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "expected_ack_cnt:", le32_to_cpu(tx->expected_ack_cnt), accum_tx->expected_ack_cnt, delta_tx->expected_ack_cnt, max_tx->expected_ack_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "actual_ack_cnt:", le32_to_cpu(tx->actual_ack_cnt), accum_tx->actual_ack_cnt, delta_tx->actual_ack_cnt, max_tx->actual_ack_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "dump_msdu_cnt:", le32_to_cpu(tx->dump_msdu_cnt), accum_tx->dump_msdu_cnt, delta_tx->dump_msdu_cnt, max_tx->dump_msdu_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "abort_nxt_frame_mismatch:", le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt), accum_tx->burst_abort_next_frame_mismatch_cnt, delta_tx->burst_abort_next_frame_mismatch_cnt, max_tx->burst_abort_next_frame_mismatch_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "abort_missing_nxt_frame:", le32_to_cpu(tx->burst_abort_missing_next_frame_cnt), accum_tx->burst_abort_missing_next_frame_cnt, delta_tx->burst_abort_missing_next_frame_cnt, max_tx->burst_abort_missing_next_frame_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "cts_timeout_collision:", le32_to_cpu(tx->cts_timeout_collision), accum_tx->cts_timeout_collision, delta_tx->cts_timeout_collision, max_tx->cts_timeout_collision); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "ack_ba_timeout_collision:", le32_to_cpu(tx->ack_or_ba_timeout_collision), accum_tx->ack_or_ba_timeout_collision, delta_tx->ack_or_ba_timeout_collision, max_tx->ack_or_ba_timeout_collision); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "agg ba_timeout:", le32_to_cpu(tx->agg.ba_timeout), accum_tx->agg.ba_timeout, delta_tx->agg.ba_timeout, max_tx->agg.ba_timeout); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "agg ba_resched_frames:", le32_to_cpu(tx->agg.ba_reschedule_frames), accum_tx->agg.ba_reschedule_frames, delta_tx->agg.ba_reschedule_frames, max_tx->agg.ba_reschedule_frames); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "agg scd_query_agg_frame:", le32_to_cpu(tx->agg.scd_query_agg_frame_cnt), accum_tx->agg.scd_query_agg_frame_cnt, delta_tx->agg.scd_query_agg_frame_cnt, max_tx->agg.scd_query_agg_frame_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "agg scd_query_no_agg:", le32_to_cpu(tx->agg.scd_query_no_agg), accum_tx->agg.scd_query_no_agg, delta_tx->agg.scd_query_no_agg, max_tx->agg.scd_query_no_agg); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "agg scd_query_agg:", le32_to_cpu(tx->agg.scd_query_agg), accum_tx->agg.scd_query_agg, delta_tx->agg.scd_query_agg, max_tx->agg.scd_query_agg); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "agg scd_query_mismatch:", le32_to_cpu(tx->agg.scd_query_mismatch), accum_tx->agg.scd_query_mismatch, delta_tx->agg.scd_query_mismatch, max_tx->agg.scd_query_mismatch); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "agg frame_not_ready:", le32_to_cpu(tx->agg.frame_not_ready), accum_tx->agg.frame_not_ready, delta_tx->agg.frame_not_ready, max_tx->agg.frame_not_ready); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "agg underrun:", le32_to_cpu(tx->agg.underrun), accum_tx->agg.underrun, delta_tx->agg.underrun, max_tx->agg.underrun); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "agg bt_prio_kill:", le32_to_cpu(tx->agg.bt_prio_kill), accum_tx->agg.bt_prio_kill, delta_tx->agg.bt_prio_kill, max_tx->agg.bt_prio_kill); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "agg rx_ba_rsp_cnt:", le32_to_cpu(tx->agg.rx_ba_rsp_cnt), accum_tx->agg.rx_ba_rsp_cnt, delta_tx->agg.rx_ba_rsp_cnt, max_tx->agg.rx_ba_rsp_cnt); if (tx->tx_power.ant_a || tx->tx_power.ant_b || tx->tx_power.ant_c) { pos += scnprintf(buf + pos, bufsz - pos, "tx power: (1/2 dB step)\n"); if ((priv->nvm_data->valid_tx_ant & ANT_A) && tx->tx_power.ant_a) pos += scnprintf(buf + pos, bufsz - pos, fmt_hex, "antenna A:", tx->tx_power.ant_a); if ((priv->nvm_data->valid_tx_ant & ANT_B) && tx->tx_power.ant_b) pos += scnprintf(buf + pos, bufsz - pos, fmt_hex, "antenna B:", tx->tx_power.ant_b); if ((priv->nvm_data->valid_tx_ant & ANT_C) && tx->tx_power.ant_c) pos += scnprintf(buf + pos, bufsz - pos, fmt_hex, "antenna C:", tx->tx_power.ant_c); } spin_unlock_bh(&priv->statistics.lock); ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); kfree(buf); return ret; } static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; int pos = 0; char *buf; int bufsz = sizeof(struct statistics_general) * 10 + 300; ssize_t ret; struct statistics_general_common *general, *accum_general; struct statistics_general_common *delta_general, *max_general; struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg; struct statistics_div *div, *accum_div, *delta_div, *max_div; if (!iwl_is_alive(priv)) return -EAGAIN; buf = kzalloc(bufsz, GFP_KERNEL); if (!buf) return -ENOMEM; /* the statistic information display here is based on * the last statistics notification from uCode * might not reflect the current uCode activity */ spin_lock_bh(&priv->statistics.lock); general = &priv->statistics.common; dbg = &priv->statistics.common.dbg; div = &priv->statistics.common.div; accum_general = &priv->accum_stats.common; accum_dbg = &priv->accum_stats.common.dbg; accum_div = &priv->accum_stats.common.div; delta_general = &priv->delta_stats.common; max_general = &priv->max_delta_stats.common; delta_dbg = &priv->delta_stats.common.dbg; max_dbg = &priv->max_delta_stats.common.dbg; delta_div = &priv->delta_stats.common.div; max_div = &priv->max_delta_stats.common.div; pos += iwl_statistics_flag(priv, buf, bufsz); pos += scnprintf(buf + pos, bufsz - pos, fmt_header, "Statistics_General:"); pos += scnprintf(buf + pos, bufsz - pos, fmt_value, "temperature:", le32_to_cpu(general->temperature)); pos += scnprintf(buf + pos, bufsz - pos, fmt_value, "temperature_m:", le32_to_cpu(general->temperature_m)); pos += scnprintf(buf + pos, bufsz - pos, fmt_value, "ttl_timestamp:", le32_to_cpu(general->ttl_timestamp)); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "burst_check:", le32_to_cpu(dbg->burst_check), accum_dbg->burst_check, delta_dbg->burst_check, max_dbg->burst_check); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "burst_count:", le32_to_cpu(dbg->burst_count), accum_dbg->burst_count, delta_dbg->burst_count, max_dbg->burst_count); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "wait_for_silence_timeout_count:", le32_to_cpu(dbg->wait_for_silence_timeout_cnt), accum_dbg->wait_for_silence_timeout_cnt, delta_dbg->wait_for_silence_timeout_cnt, max_dbg->wait_for_silence_timeout_cnt); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "sleep_time:", le32_to_cpu(general->sleep_time), accum_general->sleep_time, delta_general->sleep_time, max_general->sleep_time); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "slots_out:", le32_to_cpu(general->slots_out), accum_general->slots_out, delta_general->slots_out, max_general->slots_out); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "slots_idle:", le32_to_cpu(general->slots_idle), accum_general->slots_idle, delta_general->slots_idle, max_general->slots_idle); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "tx_on_a:", le32_to_cpu(div->tx_on_a), accum_div->tx_on_a, delta_div->tx_on_a, max_div->tx_on_a); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "tx_on_b:", le32_to_cpu(div->tx_on_b), accum_div->tx_on_b, delta_div->tx_on_b, max_div->tx_on_b); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "exec_time:", le32_to_cpu(div->exec_time), accum_div->exec_time, delta_div->exec_time, max_div->exec_time); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "probe_time:", le32_to_cpu(div->probe_time), accum_div->probe_time, delta_div->probe_time, max_div->probe_time); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "rx_enable_counter:", le32_to_cpu(general->rx_enable_counter), accum_general->rx_enable_counter, delta_general->rx_enable_counter, max_general->rx_enable_counter); pos += scnprintf(buf + pos, bufsz - pos, fmt_table, "num_of_sos_states:", le32_to_cpu(general->num_of_sos_states), accum_general->num_of_sos_states, delta_general->num_of_sos_states, max_general->num_of_sos_states); spin_unlock_bh(&priv->statistics.lock); ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); kfree(buf); return ret; } static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = (struct iwl_priv *)file->private_data; int pos = 0; char *buf; int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200; ssize_t ret; struct statistics_bt_activity *bt, *accum_bt; if (!iwl_is_alive(priv)) return -EAGAIN; if (!priv->bt_enable_flag) return -EINVAL; /* make request to uCode to retrieve statistics information */ mutex_lock(&priv->mutex); ret = iwl_send_statistics_request(priv, 0, false); mutex_unlock(&priv->mutex); if (ret) return -EAGAIN; buf = kzalloc(bufsz, GFP_KERNEL); if (!buf) return -ENOMEM; /* * the statistic information display here is based on * the last statistics notification from uCode * might not reflect the current uCode activity */ spin_lock_bh(&priv->statistics.lock); bt = &priv->statistics.bt_activity; accum_bt = &priv->accum_stats.bt_activity; pos += iwl_statistics_flag(priv, buf, bufsz); pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n"); pos += scnprintf(buf + pos, bufsz - pos, "\t\t\tcurrent\t\t\taccumulative\n"); pos += scnprintf(buf + pos, bufsz - pos, "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n", le32_to_cpu(bt->hi_priority_tx_req_cnt), accum_bt->hi_priority_tx_req_cnt); pos += scnprintf(buf + pos, bufsz - pos, "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n", le32_to_cpu(bt->hi_priority_tx_denied_cnt), accum_bt->hi_priority_tx_denied_cnt); pos += scnprintf(buf + pos, bufsz - pos, "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n", le32_to_cpu(bt->lo_priority_tx_req_cnt), accum_bt->lo_priority_tx_req_cnt); pos += scnprintf(buf + pos, bufsz - pos, "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n", le32_to_cpu(bt->lo_priority_tx_denied_cnt), accum_bt->lo_priority_tx_denied_cnt); pos += scnprintf(buf + pos, bufsz - pos, "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n", le32_to_cpu(bt->hi_priority_rx_req_cnt), accum_bt->hi_priority_rx_req_cnt); pos += scnprintf(buf + pos, bufsz - pos, "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n", le32_to_cpu(bt->hi_priority_rx_denied_cnt), accum_bt->hi_priority_rx_denied_cnt); pos += scnprintf(buf + pos, bufsz - pos, "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n", le32_to_cpu(bt->lo_priority_rx_req_cnt), accum_bt->lo_priority_rx_req_cnt); pos += scnprintf(buf + pos, bufsz - pos, "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n", le32_to_cpu(bt->lo_priority_rx_denied_cnt), accum_bt->lo_priority_rx_denied_cnt); pos += scnprintf(buf + pos, bufsz - pos, "(rx)num_bt_kills:\t\t%u\t\t\t%u\n", le32_to_cpu(priv->statistics.num_bt_kills), priv->statistics.accum_num_bt_kills); spin_unlock_bh(&priv->statistics.lock); ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); kfree(buf); return ret; } static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = (struct iwl_priv *)file->private_data; int pos = 0; char *buf; int bufsz = (sizeof(struct reply_tx_error_statistics) * 24) + (sizeof(struct reply_agg_tx_error_statistics) * 24) + 200; ssize_t ret; if (!iwl_is_alive(priv)) return -EAGAIN; buf = kzalloc(bufsz, GFP_KERNEL); if (!buf) return -ENOMEM; pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n"); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY), priv->reply_tx_stats.pp_delay); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES), priv->reply_tx_stats.pp_few_bytes); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO), priv->reply_tx_stats.pp_bt_prio); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD), priv->reply_tx_stats.pp_quiet_period); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK), priv->reply_tx_stats.pp_calc_ttak); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", iwl_get_tx_fail_reason( TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY), priv->reply_tx_stats.int_crossed_retry); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT), priv->reply_tx_stats.short_limit); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT), priv->reply_tx_stats.long_limit); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN), priv->reply_tx_stats.fifo_underrun); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW), priv->reply_tx_stats.drain_flow); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH), priv->reply_tx_stats.rfkill_flush); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE), priv->reply_tx_stats.life_expire); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS), priv->reply_tx_stats.dest_ps); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED), priv->reply_tx_stats.host_abort); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY), priv->reply_tx_stats.pp_delay); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID), priv->reply_tx_stats.sta_invalid); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED), priv->reply_tx_stats.frag_drop); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE), priv->reply_tx_stats.tid_disable); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED), priv->reply_tx_stats.fifo_flush); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", iwl_get_tx_fail_reason( TX_STATUS_FAIL_INSUFFICIENT_CF_POLL), priv->reply_tx_stats.insuff_cf_poll); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX), priv->reply_tx_stats.fail_hw_drop); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", iwl_get_tx_fail_reason( TX_STATUS_FAIL_NO_BEACON_ON_RADAR), priv->reply_tx_stats.sta_color_mismatch); pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n", priv->reply_tx_stats.unknown); pos += scnprintf(buf + pos, bufsz - pos, "\nStatistics_Agg_TX_Error:\n"); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK), priv->reply_agg_tx_stats.underrun); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK), priv->reply_agg_tx_stats.bt_prio); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK), priv->reply_agg_tx_stats.few_bytes); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK), priv->reply_agg_tx_stats.abort); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", iwl_get_agg_tx_fail_reason( AGG_TX_STATE_LAST_SENT_TTL_MSK), priv->reply_agg_tx_stats.last_sent_ttl); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", iwl_get_agg_tx_fail_reason( AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK), priv->reply_agg_tx_stats.last_sent_try); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", iwl_get_agg_tx_fail_reason( AGG_TX_STATE_LAST_SENT_BT_KILL_MSK), priv->reply_agg_tx_stats.last_sent_bt_kill); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK), priv->reply_agg_tx_stats.scd_query); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", iwl_get_agg_tx_fail_reason( AGG_TX_STATE_TEST_BAD_CRC32_MSK), priv->reply_agg_tx_stats.bad_crc32); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK), priv->reply_agg_tx_stats.response); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK), priv->reply_agg_tx_stats.dump_tx); pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK), priv->reply_agg_tx_stats.delay_tx); pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n", priv->reply_agg_tx_stats.unknown); ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); kfree(buf); return ret; } static ssize_t iwl_dbgfs_sensitivity_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; int pos = 0; int cnt = 0; char *buf; int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100; ssize_t ret; struct iwl_sensitivity_data *data; data = &priv->sensitivity_data; buf = kzalloc(bufsz, GFP_KERNEL); if (!buf) return -ENOMEM; pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n", data->auto_corr_ofdm); pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_mrc:\t\t %u\n", data->auto_corr_ofdm_mrc); pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n", data->auto_corr_ofdm_x1); pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_mrc_x1:\t\t %u\n", data->auto_corr_ofdm_mrc_x1); pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n", data->auto_corr_cck); pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n", data->auto_corr_cck_mrc); pos += scnprintf(buf + pos, bufsz - pos, "last_bad_plcp_cnt_ofdm:\t\t %u\n", data->last_bad_plcp_cnt_ofdm); pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n", data->last_fa_cnt_ofdm); pos += scnprintf(buf + pos, bufsz - pos, "last_bad_plcp_cnt_cck:\t\t %u\n", data->last_bad_plcp_cnt_cck); pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n", data->last_fa_cnt_cck); pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n", data->nrg_curr_state); pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n", data->nrg_prev_state); pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t"); for (cnt = 0; cnt < 10; cnt++) { pos += scnprintf(buf + pos, bufsz - pos, " %u", data->nrg_value[cnt]); } pos += scnprintf(buf + pos, bufsz - pos, "\n"); pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t"); for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) { pos += scnprintf(buf + pos, bufsz - pos, " %u", data->nrg_silence_rssi[cnt]); } pos += scnprintf(buf + pos, bufsz - pos, "\n"); pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n", data->nrg_silence_ref); pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n", data->nrg_energy_idx); pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n", data->nrg_silence_idx); pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n", data->nrg_th_cck); pos += scnprintf(buf + pos, bufsz - pos, "nrg_auto_corr_silence_diff:\t %u\n", data->nrg_auto_corr_silence_diff); pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n", data->num_in_cck_no_fa); pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n", data->nrg_th_ofdm); ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); kfree(buf); return ret; } static ssize_t iwl_dbgfs_chain_noise_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; int pos = 0; int cnt = 0; char *buf; int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100; ssize_t ret; struct iwl_chain_noise_data *data; data = &priv->chain_noise_data; buf = kzalloc(bufsz, GFP_KERNEL); if (!buf) return -ENOMEM; pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n", data->active_chains); pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n", data->chain_noise_a); pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n", data->chain_noise_b); pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n", data->chain_noise_c); pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n", data->chain_signal_a); pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n", data->chain_signal_b); pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n", data->chain_signal_c); pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n", data->beacon_count); pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t"); for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) { pos += scnprintf(buf + pos, bufsz - pos, " %u", data->disconn_array[cnt]); } pos += scnprintf(buf + pos, bufsz - pos, "\n"); pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t"); for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) { pos += scnprintf(buf + pos, bufsz - pos, " %u", data->delta_gain_code[cnt]); } pos += scnprintf(buf + pos, bufsz - pos, "\n"); pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n", data->radio_write); pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n", data->state); ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); kfree(buf); return ret; } static ssize_t iwl_dbgfs_power_save_status_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[60]; int pos = 0; const size_t bufsz = sizeof(buf); u32 pwrsave_status; pwrsave_status = iwl_read32(priv->trans, CSR_GP_CNTRL) & CSR_GP_REG_POWER_SAVE_STATUS_MSK; pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: "); pos += scnprintf(buf + pos, bufsz - pos, "%s\n", (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" : (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" : (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" : "error"); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[8]; int buf_size; int clear; memset(buf, 0, sizeof(buf)); buf_size = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, buf_size)) return -EFAULT; if (sscanf(buf, "%d", &clear) != 1) return -EFAULT; /* make request to uCode to retrieve statistics information */ mutex_lock(&priv->mutex); iwl_send_statistics_request(priv, 0, true); mutex_unlock(&priv->mutex); return count; } static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; int pos = 0; char buf[128]; const size_t bufsz = sizeof(buf); pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n", priv->event_log.ucode_trace ? "On" : "Off"); pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n", priv->event_log.non_wraps_count); pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n", priv->event_log.wraps_once_count); pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n", priv->event_log.wraps_more_count); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[8]; int buf_size; int trace; memset(buf, 0, sizeof(buf)); buf_size = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, buf_size)) return -EFAULT; if (sscanf(buf, "%d", &trace) != 1) return -EFAULT; if (trace) { priv->event_log.ucode_trace = true; if (iwl_is_alive(priv)) { /* start collecting data now */ mod_timer(&priv->ucode_trace, jiffies); } } else { priv->event_log.ucode_trace = false; del_timer_sync(&priv->ucode_trace); } return count; } static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; int len = 0; char buf[20]; len = sprintf(buf, "0x%04X\n", le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags)); return simple_read_from_buffer(user_buf, count, ppos, buf, len); } static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; int len = 0; char buf[20]; len = sprintf(buf, "0x%04X\n", le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags)); return simple_read_from_buffer(user_buf, count, ppos, buf, len); } static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; int pos = 0; char buf[12]; const size_t bufsz = sizeof(buf); pos += scnprintf(buf + pos, bufsz - pos, "%d\n", priv->missed_beacon_threshold); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[8]; int buf_size; int missed; memset(buf, 0, sizeof(buf)); buf_size = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, buf_size)) return -EFAULT; if (sscanf(buf, "%d", &missed) != 1) return -EINVAL; if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN || missed > IWL_MISSED_BEACON_THRESHOLD_MAX) priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF; else priv->missed_beacon_threshold = missed; return count; } static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; int pos = 0; char buf[12]; const size_t bufsz = sizeof(buf); pos += scnprintf(buf + pos, bufsz - pos, "%u\n", priv->plcp_delta_threshold); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[8]; int buf_size; int plcp; memset(buf, 0, sizeof(buf)); buf_size = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, buf_size)) return -EFAULT; if (sscanf(buf, "%d", &plcp) != 1) return -EINVAL; if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) || (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX)) priv->plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE; else priv->plcp_delta_threshold = plcp; return count; } static ssize_t iwl_dbgfs_rf_reset_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; int pos = 0; char buf[300]; const size_t bufsz = sizeof(buf); struct iwl_rf_reset *rf_reset = &priv->rf_reset; pos += scnprintf(buf + pos, bufsz - pos, "RF reset statistics\n"); pos += scnprintf(buf + pos, bufsz - pos, "\tnumber of reset request: %d\n", rf_reset->reset_request_count); pos += scnprintf(buf + pos, bufsz - pos, "\tnumber of reset request success: %d\n", rf_reset->reset_success_count); pos += scnprintf(buf + pos, bufsz - pos, "\tnumber of reset request reject: %d\n", rf_reset->reset_reject_count); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_rf_reset_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; int ret; ret = iwl_force_rf_reset(priv, true); return ret ? ret : count; } static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[8]; int buf_size; int flush; memset(buf, 0, sizeof(buf)); buf_size = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, buf_size)) return -EFAULT; if (sscanf(buf, "%d", &flush) != 1) return -EINVAL; if (iwl_is_rfkill(priv)) return -EFAULT; iwlagn_dev_txfifo_flush(priv); return count; } static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = (struct iwl_priv *)file->private_data; int pos = 0; char buf[200]; const size_t bufsz = sizeof(buf); if (!priv->bt_enable_flag) { pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n"); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n", priv->bt_enable_flag); pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n", priv->bt_full_concurrent ? "full concurrency" : "3-wire"); pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, " "last traffic notif: %d\n", priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load); pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, " "kill_ack_mask: %x, kill_cts_mask: %x\n", priv->bt_ch_announce, priv->kill_ack_mask, priv->kill_cts_mask); pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: "); switch (priv->bt_traffic_load) { case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS: pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n"); break; case IWL_BT_COEX_TRAFFIC_LOAD_HIGH: pos += scnprintf(buf + pos, bufsz - pos, "High\n"); break; case IWL_BT_COEX_TRAFFIC_LOAD_LOW: pos += scnprintf(buf + pos, bufsz - pos, "Low\n"); break; case IWL_BT_COEX_TRAFFIC_LOAD_NONE: default: pos += scnprintf(buf + pos, bufsz - pos, "None\n"); break; } return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_protection_mode_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = (struct iwl_priv *)file->private_data; int pos = 0; char buf[40]; const size_t bufsz = sizeof(buf); if (priv->cfg->ht_params) pos += scnprintf(buf + pos, bufsz - pos, "use %s for aggregation\n", (priv->hw_params.use_rts_for_aggregation) ? "rts/cts" : "cts-to-self"); else pos += scnprintf(buf + pos, bufsz - pos, "N/A"); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_protection_mode_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[8]; int buf_size; int rts; if (!priv->cfg->ht_params) return -EINVAL; memset(buf, 0, sizeof(buf)); buf_size = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, buf_size)) return -EFAULT; if (sscanf(buf, "%d", &rts) != 1) return -EINVAL; if (rts) priv->hw_params.use_rts_for_aggregation = true; else priv->hw_params.use_rts_for_aggregation = false; return count; } static int iwl_cmd_echo_test(struct iwl_priv *priv) { int ret; struct iwl_host_cmd cmd = { .id = REPLY_ECHO, .len = { 0 }, }; ret = iwl_dvm_send_cmd(priv, &cmd); if (ret) IWL_ERR(priv, "echo testing fail: 0X%x\n", ret); else IWL_DEBUG_INFO(priv, "echo testing pass\n"); return ret; } static ssize_t iwl_dbgfs_echo_test_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[8]; int buf_size; memset(buf, 0, sizeof(buf)); buf_size = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, buf_size)) return -EFAULT; iwl_cmd_echo_test(priv); return count; } #ifdef CONFIG_IWLWIFI_DEBUG static ssize_t iwl_dbgfs_log_event_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char *buf = NULL; ssize_t ret; ret = iwl_dump_nic_event_log(priv, true, &buf); if (ret > 0) ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); kfree(buf); return ret; } static ssize_t iwl_dbgfs_log_event_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; u32 event_log_flag; char buf[8]; int buf_size; /* check that the interface is up */ if (!iwl_is_ready(priv)) return -EAGAIN; memset(buf, 0, sizeof(buf)); buf_size = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, buf_size)) return -EFAULT; if (sscanf(buf, "%u", &event_log_flag) != 1) return -EFAULT; if (event_log_flag == 1) iwl_dump_nic_event_log(priv, true, NULL); return count; } #endif static ssize_t iwl_dbgfs_calib_disabled_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[120]; int pos = 0; const size_t bufsz = sizeof(buf); pos += scnprintf(buf + pos, bufsz - pos, "Sensitivity calibrations %s\n", (priv->calib_disabled & IWL_SENSITIVITY_CALIB_DISABLED) ? "DISABLED" : "ENABLED"); pos += scnprintf(buf + pos, bufsz - pos, "Chain noise calibrations %s\n", (priv->calib_disabled & IWL_CHAIN_NOISE_CALIB_DISABLED) ? "DISABLED" : "ENABLED"); pos += scnprintf(buf + pos, bufsz - pos, "Tx power calibrations %s\n", (priv->calib_disabled & IWL_TX_POWER_CALIB_DISABLED) ? "DISABLED" : "ENABLED"); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; char buf[8]; u32 calib_disabled; int buf_size; memset(buf, 0, sizeof(buf)); buf_size = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, buf_size)) return -EFAULT; if (sscanf(buf, "%x", &calib_disabled) != 1) return -EFAULT; priv->calib_disabled = calib_disabled; return count; } static ssize_t iwl_dbgfs_fw_restart_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_priv *priv = file->private_data; bool fw_restart = iwlwifi_mod_params.fw_restart; int __maybe_unused ret; iwlwifi_mod_params.fw_restart = true; mutex_lock(&priv->mutex); /* take the return value to make compiler happy - it will fail anyway */ ret = iwl_dvm_send_cmd_pdu(priv, REPLY_ERROR, 0, 0, NULL); mutex_unlock(&priv->mutex); iwlwifi_mod_params.fw_restart = fw_restart; return count; } DEBUGFS_READ_FILE_OPS(ucode_rx_stats); DEBUGFS_READ_FILE_OPS(ucode_tx_stats); DEBUGFS_READ_FILE_OPS(ucode_general_stats); DEBUGFS_READ_FILE_OPS(sensitivity); DEBUGFS_READ_FILE_OPS(chain_noise); DEBUGFS_READ_FILE_OPS(power_save_status); DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics); DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing); DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon); DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta); DEBUGFS_READ_WRITE_FILE_OPS(rf_reset); DEBUGFS_READ_FILE_OPS(rxon_flags); DEBUGFS_READ_FILE_OPS(rxon_filter_flags); DEBUGFS_WRITE_FILE_OPS(txfifo_flush); DEBUGFS_READ_FILE_OPS(ucode_bt_stats); DEBUGFS_READ_FILE_OPS(bt_traffic); DEBUGFS_READ_WRITE_FILE_OPS(protection_mode); DEBUGFS_READ_FILE_OPS(reply_tx_error); DEBUGFS_WRITE_FILE_OPS(echo_test); DEBUGFS_WRITE_FILE_OPS(fw_restart); #ifdef CONFIG_IWLWIFI_DEBUG DEBUGFS_READ_WRITE_FILE_OPS(log_event); #endif DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled); /* * Create the debugfs files and directories * */ void iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir) { struct dentry *dir_data, *dir_rf, *dir_debug; priv->debugfs_dir = dbgfs_dir; dir_data = debugfs_create_dir("data", dbgfs_dir); dir_rf = debugfs_create_dir("rf", dbgfs_dir); dir_debug = debugfs_create_dir("debug", dbgfs_dir); DEBUGFS_ADD_FILE(nvm, dir_data, 0400); DEBUGFS_ADD_FILE(sram, dir_data, 0600); DEBUGFS_ADD_FILE(wowlan_sram, dir_data, 0400); DEBUGFS_ADD_FILE(stations, dir_data, 0400); DEBUGFS_ADD_FILE(channels, dir_data, 0400); DEBUGFS_ADD_FILE(status, dir_data, 0400); DEBUGFS_ADD_FILE(rx_handlers, dir_data, 0600); DEBUGFS_ADD_FILE(qos, dir_data, 0400); DEBUGFS_ADD_FILE(sleep_level_override, dir_data, 0600); DEBUGFS_ADD_FILE(current_sleep_command, dir_data, 0400); DEBUGFS_ADD_FILE(thermal_throttling, dir_data, 0400); DEBUGFS_ADD_FILE(disable_ht40, dir_data, 0600); DEBUGFS_ADD_FILE(temperature, dir_data, 0400); DEBUGFS_ADD_FILE(power_save_status, dir_debug, 0400); DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, 0200); DEBUGFS_ADD_FILE(missed_beacon, dir_debug, 0200); DEBUGFS_ADD_FILE(plcp_delta, dir_debug, 0600); DEBUGFS_ADD_FILE(rf_reset, dir_debug, 0600); DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, 0400); DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, 0400); DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, 0400); DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, 0200); DEBUGFS_ADD_FILE(protection_mode, dir_debug, 0600); DEBUGFS_ADD_FILE(sensitivity, dir_debug, 0400); DEBUGFS_ADD_FILE(chain_noise, dir_debug, 0400); DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, 0600); DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, 0400); DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, 0400); DEBUGFS_ADD_FILE(rxon_flags, dir_debug, 0200); DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, 0200); DEBUGFS_ADD_FILE(echo_test, dir_debug, 0200); DEBUGFS_ADD_FILE(fw_restart, dir_debug, 0200); #ifdef CONFIG_IWLWIFI_DEBUG DEBUGFS_ADD_FILE(log_event, dir_debug, 0600); #endif if (iwl_advanced_bt_coexist(priv)) DEBUGFS_ADD_FILE(bt_traffic, dir_debug, 0400); /* Calibrations disabled/enabled status*/ DEBUGFS_ADD_FILE(calib_disabled, dir_rf, 0600); /* * Create a symlink with mac80211. This is not very robust, as it does * not remove the symlink created. The implicit assumption is that * when the opmode exits, mac80211 will also exit, and will remove * this symlink as part of its cleanup. */ if (priv->mac80211_registered) { char buf[100]; struct dentry *mac80211_dir, *dev_dir; dev_dir = dbgfs_dir->d_parent; mac80211_dir = priv->hw->wiphy->debugfsdir; snprintf(buf, 100, "../../%pd2", dev_dir); debugfs_create_symlink("iwlwifi", mac80211_dir, buf); } }
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