OpenCloudOS-Kernel/drivers/net/wireless/iwlwifi/iwl-debugfs.c

2308 lines
76 KiB
C
Raw Normal View History

/******************************************************************************
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2009 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*****************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/debugfs.h>
#include <linux/ieee80211.h>
#include <net/mac80211.h>
#include "iwl-dev.h"
#include "iwl-debug.h"
#include "iwl-core.h"
#include "iwl-io.h"
#include "iwl-calib.h"
/* create and remove of files */
#define DEBUGFS_ADD_DIR(name, parent) do { \
dbgfs->dir_##name = debugfs_create_dir(#name, parent); \
if (!(dbgfs->dir_##name)) \
goto err; \
} while (0)
#define DEBUGFS_ADD_FILE(name, parent, mode) do { \
dbgfs->dbgfs_##parent##_files.file_##name = \
debugfs_create_file(#name, mode, \
dbgfs->dir_##parent, priv, \
&iwl_dbgfs_##name##_ops); \
if (!(dbgfs->dbgfs_##parent##_files.file_##name)) \
goto err; \
} while (0)
#define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \
dbgfs->dbgfs_##parent##_files.file_##name = \
debugfs_create_bool(#name, S_IWUSR | S_IRUSR, \
dbgfs->dir_##parent, ptr); \
if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name) \
|| !dbgfs->dbgfs_##parent##_files.file_##name) \
goto err; \
} while (0)
#define DEBUGFS_ADD_X32(name, parent, ptr) do { \
dbgfs->dbgfs_##parent##_files.file_##name = \
debugfs_create_x32(#name, S_IRUSR, dbgfs->dir_##parent, ptr); \
if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name) \
|| !dbgfs->dbgfs_##parent##_files.file_##name) \
goto err; \
} while (0)
#define DEBUGFS_REMOVE(name) do { \
debugfs_remove(name); \
name = NULL; \
} while (0);
/* file operation */
#define DEBUGFS_READ_FUNC(name) \
static ssize_t iwl_dbgfs_##name##_read(struct file *file, \
char __user *user_buf, \
size_t count, loff_t *ppos);
#define DEBUGFS_WRITE_FUNC(name) \
static ssize_t iwl_dbgfs_##name##_write(struct file *file, \
const char __user *user_buf, \
size_t count, loff_t *ppos);
static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 0;
}
#define DEBUGFS_READ_FILE_OPS(name) \
DEBUGFS_READ_FUNC(name); \
static const struct file_operations iwl_dbgfs_##name##_ops = { \
.read = iwl_dbgfs_##name##_read, \
.open = iwl_dbgfs_open_file_generic, \
};
#define DEBUGFS_WRITE_FILE_OPS(name) \
DEBUGFS_WRITE_FUNC(name); \
static const struct file_operations iwl_dbgfs_##name##_ops = { \
.write = iwl_dbgfs_##name##_write, \
.open = iwl_dbgfs_open_file_generic, \
};
#define DEBUGFS_READ_WRITE_FILE_OPS(name) \
DEBUGFS_READ_FUNC(name); \
DEBUGFS_WRITE_FUNC(name); \
static const struct file_operations iwl_dbgfs_##name##_ops = { \
.write = iwl_dbgfs_##name##_write, \
.read = iwl_dbgfs_##name##_read, \
.open = iwl_dbgfs_open_file_generic, \
};
static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos) {
struct iwl_priv *priv = file->private_data;
char *buf;
int pos = 0;
int cnt;
ssize_t ret;
const size_t bufsz = 100 +
sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
pos += scnprintf(buf + pos, bufsz - pos,
"\t%25s\t\t: %u\n",
get_mgmt_string(cnt),
priv->tx_stats.mgmt[cnt]);
}
pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
pos += scnprintf(buf + pos, bufsz - pos,
"\t%25s\t\t: %u\n",
get_ctrl_string(cnt),
priv->tx_stats.ctrl[cnt]);
}
pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
priv->tx_stats.data_cnt);
pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
priv->tx_stats.data_bytes);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
static ssize_t iwl_dbgfs_clear_traffic_statistics_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_priv *priv = file->private_data;
u32 clear_flag;
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;
if (sscanf(buf, "%x", &clear_flag) != 1)
return -EFAULT;
iwl_clear_traffic_stats(priv);
return count;
}
static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos) {
struct iwl_priv *priv = file->private_data;
char *buf;
int pos = 0;
int cnt;
ssize_t ret;
const size_t bufsz = 100 +
sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
pos += scnprintf(buf + pos, bufsz - pos,
"\t%25s\t\t: %u\n",
get_mgmt_string(cnt),
priv->rx_stats.mgmt[cnt]);
}
pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
pos += scnprintf(buf + pos, bufsz - pos,
"\t%25s\t\t: %u\n",
get_ctrl_string(cnt),
priv->rx_stats.ctrl[cnt]);
}
pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
priv->rx_stats.data_cnt);
pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
priv->rx_stats.data_bytes);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
#define BYTE1_MASK 0x000000ff;
#define BYTE2_MASK 0x0000ffff;
#define BYTE3_MASK 0x00ffffff;
static ssize_t iwl_dbgfs_sram_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
u32 val;
char *buf;
ssize_t ret;
int i;
int pos = 0;
struct iwl_priv *priv = file->private_data;
size_t bufsz;
/* 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_type == UCODE_INIT)
priv->dbgfs->sram_len = priv->ucode_init_data.len;
else
priv->dbgfs->sram_len = priv->ucode_data.len;
}
bufsz = 30 + priv->dbgfs->sram_len * sizeof(char) * 10;
buf = kmalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
priv->dbgfs->sram_len);
pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
priv->dbgfs->sram_offset);
for (i = priv->dbgfs->sram_len; i > 0; i -= 4) {
val = iwl_read_targ_mem(priv, priv->dbgfs->sram_offset + \
priv->dbgfs->sram_len - i);
if (i < 4) {
switch (i) {
case 1:
val &= BYTE1_MASK;
break;
case 2:
val &= BYTE2_MASK;
break;
case 3:
val &= BYTE3_MASK;
break;
}
}
if (!(i % 16))
pos += scnprintf(buf + pos, bufsz - pos, "\n");
pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
}
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 {
priv->dbgfs->sram_offset = 0;
priv->dbgfs->sram_len = 0;
}
return count;
}
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;
int max_sta = priv->hw_params.max_stations;
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 < max_sta; i++) {
station = &priv->stations[i];
if (station->used) {
pos += scnprintf(buf + pos, bufsz - pos,
"station %d:\ngeneral data:\n", i+1);
pos += scnprintf(buf + pos, bufsz - pos, "id: %u\n",
station->sta.sta.sta_id);
pos += scnprintf(buf + pos, bufsz - pos, "mode: %u\n",
station->sta.mode);
pos += scnprintf(buf + pos, bufsz - pos,
"flags: 0x%x\n",
station->sta.station_flags_msk);
pos += scnprintf(buf + pos, bufsz - pos, "tid data:\n");
pos += scnprintf(buf + pos, bufsz - pos,
"seq_num\t\ttxq_id");
pos += scnprintf(buf + pos, bufsz - pos,
"\tframe_count\twait_for_ba\t");
pos += scnprintf(buf + pos, bufsz - pos,
"start_idx\tbitmap0\t");
pos += scnprintf(buf + pos, bufsz - pos,
"bitmap1\trate_n_flags");
pos += scnprintf(buf + pos, bufsz - pos, "\n");
for (j = 0; j < MAX_TID_COUNT; j++) {
pos += scnprintf(buf + pos, bufsz - pos,
"[%d]:\t\t%u", j,
station->tid[j].seq_number);
pos += scnprintf(buf + pos, bufsz - pos,
"\t%u\t\t%u\t\t%u\t\t",
station->tid[j].agg.txq_id,
station->tid[j].agg.frame_count,
station->tid[j].agg.wait_for_ba);
pos += scnprintf(buf + pos, bufsz - pos,
"%u\t%llu\t%u",
station->tid[j].agg.start_idx,
(unsigned long long)station->tid[j].agg.bitmap,
station->tid[j].agg.rate_n_flags);
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 eeprom_ver;
size_t eeprom_len = priv->cfg->eeprom_size;
buf_size = 4 * eeprom_len + 256;
if (eeprom_len % 16) {
IWL_ERR(priv, "NVM size is not multiple of 16.\n");
return -ENODATA;
}
ptr = priv->eeprom;
if (!ptr) {
IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
return -ENOMEM;
}
/* 4 characters for byte 0xYY */
buf = kzalloc(buf_size, GFP_KERNEL);
if (!buf) {
IWL_ERR(priv, "Can not allocate Buffer\n");
return -ENOMEM;
}
eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
"version: 0x%x\n",
(priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
? "OTP" : "EEPROM", eeprom_ver);
for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
buf_size - pos, 0);
iwlwifi: fix debugfs buffer handling We keep track of where to write into a buffer by keeping a count of how much has been written so far. When writing to the buffer we thus take the buffer pointer and adding the count of what has been written so far. Keeping track of what has been written so far is done by incrementing this number every time something is written to the buffer with how much has been written at that time. Currently this number is incremented incorrectly when using the "hex_dump_to_buffer" call to add data to the buffer. Fix this by only adding what has been added to the buffer in that call instead of what has been added since beginning of buffer. Issue was discovered and discussed during testing of https://bugzilla.redhat.com/show_bug.cgi?id=464598 . When a user views any of these files they will see something like: [ 179.355202] ------------[ cut here ]------------ [ 179.355209] WARNING: at ../lib/vsprintf.c:989 vsnprintf+0x5ec/0x5f0() [ 179.355212] Hardware name: VGN-Z540N [ 179.355213] Modules linked in: i915 drm i2c_algo_bit i2c_core ipv6 acpi_cpufreq cpufreq_userspace cpufreq_powersave cpufreq_ondemand cpufreq_conservative cpufreq_stats freq_table container sbs sbshc arc4 ecb iwlagn iwlcore joydev led_class mac80211 af_packet pcmcia psmouse sony_laptop cfg80211 iTCO_wdt iTCO_vendor_support pcspkr serio_raw rfkill intel_agp video output tpm_infineon tpm tpm_bios button battery yenta_socket rsrc_nonstatic pcmcia_core processor ac evdev ext3 jbd mbcache sr_mod sg cdrom sd_mod ahci libata scsi_mod ehci_hcd uhci_hcd usbcore thermal fan thermal_sys [ 179.355262] Pid: 5449, comm: cat Not tainted 2.6.31-wl-54419-ge881071 #62 [ 179.355264] Call Trace: [ 179.355267] [<ffffffff811ad14c>] ? vsnprintf+0x5ec/0x5f0 [ 179.355271] [<ffffffff81041348>] warn_slowpath_common+0x78/0xd0 [ 179.355275] [<ffffffff810413af>] warn_slowpath_null+0xf/0x20 [ 179.355277] [<ffffffff811ad14c>] vsnprintf+0x5ec/0x5f0 [ 179.355280] [<ffffffff811ad23d>] ? scnprintf+0x5d/0x80 [ 179.355283] [<ffffffff811ad23d>] scnprintf+0x5d/0x80 [ 179.355286] [<ffffffff811aed29>] ? hex_dump_to_buffer+0x189/0x340 [ 179.355290] [<ffffffff810e91d7>] ? __kmalloc+0x207/0x260 [ 179.355303] [<ffffffffa02a02f8>] iwl_dbgfs_nvm_read+0xe8/0x220 [iwlcore] [ 179.355306] [<ffffffff811a9b62>] ? __up_read+0x92/0xb0 [ 179.355310] [<ffffffff810f0988>] vfs_read+0xc8/0x1a0 [ 179.355313] [<ffffffff810f0b50>] sys_read+0x50/0x90 [ 179.355316] [<ffffffff8100bd6b>] system_call_fastpath+0x16/0x1b [ 179.355319] ---[ end trace 2383d0d5e0752ca0 ]--- Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-26 05:24:21 +08:00
pos += strlen(buf + pos);
if (buf_size - pos > 0)
buf[pos++] = '\n';
}
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
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;
int pos = 0;
ssize_t ret = -ENOMEM;
pos = priv->cfg->ops->lib->dump_nic_event_log(priv, true, &buf, true);
if (pos && buf) {
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
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;
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", &event_log_flag) != 1)
return -EFAULT;
if (event_log_flag == 1)
priv->cfg->ops->lib->dump_nic_event_log(priv, true,
NULL, false);
return count;
}
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;
if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
return -EAGAIN;
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf) {
IWL_ERR(priv, "Can not allocate Buffer\n");
return -ENOMEM;
}
supp_band = iwl_get_hw_mode(priv, IEEE80211_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",
ieee80211_frequency_to_channel(
channels[i].center_freq),
channels[i].max_power,
channels[i].flags & IEEE80211_CHAN_RADAR ?
" (IEEE 802.11h required)" : "",
((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
|| (channels[i].flags &
IEEE80211_CHAN_RADAR)) ? "" :
", IBSS",
channels[i].flags &
IEEE80211_CHAN_PASSIVE_SCAN ?
"passive only" : "active/passive");
}
supp_band = iwl_get_hw_mode(priv, IEEE80211_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",
ieee80211_frequency_to_channel(
channels[i].center_freq),
channels[i].max_power,
channels[i].flags & IEEE80211_CHAN_RADAR ?
" (IEEE 802.11h required)" : "",
((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
|| (channels[i].flags &
IEEE80211_CHAN_RADAR)) ? "" :
", IBSS",
channels[i].flags &
IEEE80211_CHAN_PASSIVE_SCAN ?
"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_HCMD_ACTIVE:\t %d\n",
test_bit(STATUS_HCMD_ACTIVE, &priv->status));
pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_SYNC_ACTIVE: %d\n",
test_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status));
pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
test_bit(STATUS_INT_ENABLED, &priv->status));
pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
test_bit(STATUS_RF_KILL_HW, &priv->status));
iwlwifi: reliable entering of critical temperature state When uCode detects critical temperature it should send "card state notification" interrupt to driver and then shut itself down to prevent overheating. There is a race condition where uCode shuts down before it can deliver the interrupt to driver. Additional method provided here for driver to enter CT_KILL state based on temperature reading. How it works: Method 1: If driver receive "card state notification" interrupt from uCode; it enters "CT_KILL" state immediately Method 2: If the last temperature report by Card reach Critical temperature, driver will send "statistic notification" request to uCode to verify the temperature reading, if driver can not get reply from uCode within 300ms, driver will enter CT_KILL state automatically. Method 3: If the last temperature report by Card did not reach Critical temperature, but uCode already shut down due to critical temperature. All the host commands send to uCode will not get process by uCode; when command queue reach the limit, driver will check the last reported temperature reading, if it is within pre-defined margin, enter "CT_KILL" state immediately. In this case, when uCode ready to exit from "CT_KILL" state, driver need to restart the adapter in order to reset all the queues and resume normal operation. One additional issue being address here, when system is in CT_KILL state, both tx and rx already stopped, but driver still can send host command to uCode, it will flood the command queue since card was not responding; adding STATUS_CT_KILL flag to reject enqueue host commands to uCode if it is in CT_KILL state, when uCode is ready to come out of CT_KILL, driver will clear the STATUS_CT_KILL bit and allow enqueue the host commands to uCode to recover from CT_KILL state. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-03 04:43:58 +08:00
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_INIT:\t\t %d\n",
test_bit(STATUS_INIT, &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_TEMPERATURE:\t %d\n",
test_bit(STATUS_TEMPERATURE, &priv->status));
pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
test_bit(STATUS_GEO_CONFIGURED, &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));
pos += scnprintf(buf + pos, bufsz - pos, "STATUS_MODE_PENDING:\t %d\n",
test_bit(STATUS_MODE_PENDING, &priv->status));
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static ssize_t iwl_dbgfs_interrupt_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) {
IWL_ERR(priv, "Can not allocate Buffer\n");
return -ENOMEM;
}
pos += scnprintf(buf + pos, bufsz - pos,
"Interrupt Statistics Report:\n");
pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
priv->isr_stats.hw);
pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
priv->isr_stats.sw);
if (priv->isr_stats.sw > 0) {
pos += scnprintf(buf + pos, bufsz - pos,
"\tLast Restarting Code: 0x%X\n",
priv->isr_stats.sw_err);
}
#ifdef CONFIG_IWLWIFI_DEBUG
pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
priv->isr_stats.sch);
pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
priv->isr_stats.alive);
#endif
pos += scnprintf(buf + pos, bufsz - pos,
"HW RF KILL switch toggled:\t %u\n",
priv->isr_stats.rfkill);
pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
priv->isr_stats.ctkill);
pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
priv->isr_stats.wakeup);
pos += scnprintf(buf + pos, bufsz - pos,
"Rx command responses:\t\t %u\n",
priv->isr_stats.rx);
for (cnt = 0; cnt < REPLY_MAX; cnt++) {
if (priv->isr_stats.rx_handlers[cnt] > 0)
pos += scnprintf(buf + pos, bufsz - pos,
"\tRx handler[%36s]:\t\t %u\n",
get_cmd_string(cnt),
priv->isr_stats.rx_handlers[cnt]);
}
pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
priv->isr_stats.tx);
pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
priv->isr_stats.unhandled);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
static ssize_t iwl_dbgfs_interrupt_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)
iwl_clear_isr_stats(priv);
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;
int pos = 0, i;
char buf[256];
const size_t bufsz = sizeof(buf);
ssize_t ret;
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,
priv->qos_data.def_qos_parm.ac[i].cw_min,
priv->qos_data.def_qos_parm.ac[i].cw_max,
priv->qos_data.def_qos_parm.ac[i].aifsn,
priv->qos_data.def_qos_parm.ac[i].edca_txop);
}
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
return ret;
}
static ssize_t iwl_dbgfs_led_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[256];
const size_t bufsz = sizeof(buf);
ssize_t ret;
pos += scnprintf(buf + pos, bufsz - pos,
"allow blinking: %s\n",
(priv->allow_blinking) ? "True" : "False");
if (priv->allow_blinking) {
pos += scnprintf(buf + pos, bufsz - pos,
"Led blinking rate: %u\n",
priv->last_blink_rate);
pos += scnprintf(buf + pos, bufsz - pos,
"Last blink time: %lu\n",
priv->last_blink_time);
}
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
return ret;
}
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);
ssize_t ret;
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);
}
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
return ret;
}
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_associated(priv))
priv->disable_ht40 = ht40 ? true : false;
else {
IWL_ERR(priv, "Sta associated with AP - "
"Change to 40MHz channel support is not allowed\n");
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);
ssize_t ret;
pos += scnprintf(buf + pos, bufsz - pos,
"11n 40MHz Mode: %s\n",
priv->disable_ht40 ? "Disabled" : "Enabled");
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
return ret;
}
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;
iwl_power_update_mode(priv, true);
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_WRITE_FILE_OPS(log_event);
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(interrupt);
DEBUGFS_READ_FILE_OPS(qos);
DEBUGFS_READ_FILE_OPS(led);
DEBUGFS_READ_FILE_OPS(thermal_throttling);
DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
DEBUGFS_READ_FILE_OPS(current_sleep_command);
static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_priv *priv = file->private_data;
int pos = 0, ofs = 0;
int cnt = 0, entry;
struct iwl_tx_queue *txq;
struct iwl_queue *q;
struct iwl_rx_queue *rxq = &priv->rxq;
char *buf;
int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
(priv->cfg->num_of_queues * 32 * 8) + 400;
const u8 *ptr;
ssize_t ret;
if (!priv->txq) {
IWL_ERR(priv, "txq not ready\n");
return -EAGAIN;
}
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf) {
IWL_ERR(priv, "Can not allocate buffer\n");
return -ENOMEM;
}
pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
txq = &priv->txq[cnt];
q = &txq->q;
pos += scnprintf(buf + pos, bufsz - pos,
"q[%d]: read_ptr: %u, write_ptr: %u\n",
cnt, q->read_ptr, q->write_ptr);
}
if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
ptr = priv->tx_traffic;
pos += scnprintf(buf + pos, bufsz - pos,
"Tx Traffic idx: %u\n", priv->tx_traffic_idx);
for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
entry++, ofs += 16) {
pos += scnprintf(buf + pos, bufsz - pos,
"0x%.4x ", ofs);
hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
buf + pos, bufsz - pos, 0);
iwlwifi: fix debugfs buffer handling We keep track of where to write into a buffer by keeping a count of how much has been written so far. When writing to the buffer we thus take the buffer pointer and adding the count of what has been written so far. Keeping track of what has been written so far is done by incrementing this number every time something is written to the buffer with how much has been written at that time. Currently this number is incremented incorrectly when using the "hex_dump_to_buffer" call to add data to the buffer. Fix this by only adding what has been added to the buffer in that call instead of what has been added since beginning of buffer. Issue was discovered and discussed during testing of https://bugzilla.redhat.com/show_bug.cgi?id=464598 . When a user views any of these files they will see something like: [ 179.355202] ------------[ cut here ]------------ [ 179.355209] WARNING: at ../lib/vsprintf.c:989 vsnprintf+0x5ec/0x5f0() [ 179.355212] Hardware name: VGN-Z540N [ 179.355213] Modules linked in: i915 drm i2c_algo_bit i2c_core ipv6 acpi_cpufreq cpufreq_userspace cpufreq_powersave cpufreq_ondemand cpufreq_conservative cpufreq_stats freq_table container sbs sbshc arc4 ecb iwlagn iwlcore joydev led_class mac80211 af_packet pcmcia psmouse sony_laptop cfg80211 iTCO_wdt iTCO_vendor_support pcspkr serio_raw rfkill intel_agp video output tpm_infineon tpm tpm_bios button battery yenta_socket rsrc_nonstatic pcmcia_core processor ac evdev ext3 jbd mbcache sr_mod sg cdrom sd_mod ahci libata scsi_mod ehci_hcd uhci_hcd usbcore thermal fan thermal_sys [ 179.355262] Pid: 5449, comm: cat Not tainted 2.6.31-wl-54419-ge881071 #62 [ 179.355264] Call Trace: [ 179.355267] [<ffffffff811ad14c>] ? vsnprintf+0x5ec/0x5f0 [ 179.355271] [<ffffffff81041348>] warn_slowpath_common+0x78/0xd0 [ 179.355275] [<ffffffff810413af>] warn_slowpath_null+0xf/0x20 [ 179.355277] [<ffffffff811ad14c>] vsnprintf+0x5ec/0x5f0 [ 179.355280] [<ffffffff811ad23d>] ? scnprintf+0x5d/0x80 [ 179.355283] [<ffffffff811ad23d>] scnprintf+0x5d/0x80 [ 179.355286] [<ffffffff811aed29>] ? hex_dump_to_buffer+0x189/0x340 [ 179.355290] [<ffffffff810e91d7>] ? __kmalloc+0x207/0x260 [ 179.355303] [<ffffffffa02a02f8>] iwl_dbgfs_nvm_read+0xe8/0x220 [iwlcore] [ 179.355306] [<ffffffff811a9b62>] ? __up_read+0x92/0xb0 [ 179.355310] [<ffffffff810f0988>] vfs_read+0xc8/0x1a0 [ 179.355313] [<ffffffff810f0b50>] sys_read+0x50/0x90 [ 179.355316] [<ffffffff8100bd6b>] system_call_fastpath+0x16/0x1b [ 179.355319] ---[ end trace 2383d0d5e0752ca0 ]--- Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-26 05:24:21 +08:00
pos += strlen(buf + pos);
if (bufsz - pos > 0)
buf[pos++] = '\n';
}
}
}
pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
pos += scnprintf(buf + pos, bufsz - pos,
"read: %u, write: %u\n",
rxq->read, rxq->write);
if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
ptr = priv->rx_traffic;
pos += scnprintf(buf + pos, bufsz - pos,
"Rx Traffic idx: %u\n", priv->rx_traffic_idx);
for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
entry++, ofs += 16) {
pos += scnprintf(buf + pos, bufsz - pos,
"0x%.4x ", ofs);
hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
buf + pos, bufsz - pos, 0);
iwlwifi: fix debugfs buffer handling We keep track of where to write into a buffer by keeping a count of how much has been written so far. When writing to the buffer we thus take the buffer pointer and adding the count of what has been written so far. Keeping track of what has been written so far is done by incrementing this number every time something is written to the buffer with how much has been written at that time. Currently this number is incremented incorrectly when using the "hex_dump_to_buffer" call to add data to the buffer. Fix this by only adding what has been added to the buffer in that call instead of what has been added since beginning of buffer. Issue was discovered and discussed during testing of https://bugzilla.redhat.com/show_bug.cgi?id=464598 . When a user views any of these files they will see something like: [ 179.355202] ------------[ cut here ]------------ [ 179.355209] WARNING: at ../lib/vsprintf.c:989 vsnprintf+0x5ec/0x5f0() [ 179.355212] Hardware name: VGN-Z540N [ 179.355213] Modules linked in: i915 drm i2c_algo_bit i2c_core ipv6 acpi_cpufreq cpufreq_userspace cpufreq_powersave cpufreq_ondemand cpufreq_conservative cpufreq_stats freq_table container sbs sbshc arc4 ecb iwlagn iwlcore joydev led_class mac80211 af_packet pcmcia psmouse sony_laptop cfg80211 iTCO_wdt iTCO_vendor_support pcspkr serio_raw rfkill intel_agp video output tpm_infineon tpm tpm_bios button battery yenta_socket rsrc_nonstatic pcmcia_core processor ac evdev ext3 jbd mbcache sr_mod sg cdrom sd_mod ahci libata scsi_mod ehci_hcd uhci_hcd usbcore thermal fan thermal_sys [ 179.355262] Pid: 5449, comm: cat Not tainted 2.6.31-wl-54419-ge881071 #62 [ 179.355264] Call Trace: [ 179.355267] [<ffffffff811ad14c>] ? vsnprintf+0x5ec/0x5f0 [ 179.355271] [<ffffffff81041348>] warn_slowpath_common+0x78/0xd0 [ 179.355275] [<ffffffff810413af>] warn_slowpath_null+0xf/0x20 [ 179.355277] [<ffffffff811ad14c>] vsnprintf+0x5ec/0x5f0 [ 179.355280] [<ffffffff811ad23d>] ? scnprintf+0x5d/0x80 [ 179.355283] [<ffffffff811ad23d>] scnprintf+0x5d/0x80 [ 179.355286] [<ffffffff811aed29>] ? hex_dump_to_buffer+0x189/0x340 [ 179.355290] [<ffffffff810e91d7>] ? __kmalloc+0x207/0x260 [ 179.355303] [<ffffffffa02a02f8>] iwl_dbgfs_nvm_read+0xe8/0x220 [iwlcore] [ 179.355306] [<ffffffff811a9b62>] ? __up_read+0x92/0xb0 [ 179.355310] [<ffffffff810f0988>] vfs_read+0xc8/0x1a0 [ 179.355313] [<ffffffff810f0b50>] sys_read+0x50/0x90 [ 179.355316] [<ffffffff8100bd6b>] system_call_fastpath+0x16/0x1b [ 179.355319] ---[ end trace 2383d0d5e0752ca0 ]--- Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-26 05:24:21 +08:00
pos += strlen(buf + pos);
if (bufsz - pos > 0)
buf[pos++] = '\n';
}
}
}
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
static ssize_t iwl_dbgfs_traffic_log_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 traffic_log;
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", &traffic_log) != 1)
return -EFAULT;
if (traffic_log == 0)
iwl_reset_traffic_log(priv);
return count;
}
static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos) {
struct iwl_priv *priv = file->private_data;
struct iwl_tx_queue *txq;
struct iwl_queue *q;
char *buf;
int pos = 0;
int cnt;
int ret;
const size_t bufsz = sizeof(char) * 64 * priv->cfg->num_of_queues;
if (!priv->txq) {
IWL_ERR(priv, "txq not ready\n");
return -EAGAIN;
}
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
txq = &priv->txq[cnt];
q = &txq->q;
pos += scnprintf(buf + pos, bufsz - pos,
"hwq %.2d: read=%u write=%u stop=%d"
" swq_id=%#.2x (ac %d/hwq %d)\n",
cnt, q->read_ptr, q->write_ptr,
!!test_bit(cnt, priv->queue_stopped),
txq->swq_id,
txq->swq_id & 0x80 ? txq->swq_id & 3 :
txq->swq_id,
txq->swq_id & 0x80 ? (txq->swq_id >> 2) &
0x1f : txq->swq_id);
if (cnt >= 4)
continue;
/* for the ACs, display the stop count too */
pos += scnprintf(buf + pos, bufsz - pos,
" stop-count: %d\n",
atomic_read(&priv->queue_stop_count[cnt]));
}
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos) {
struct iwl_priv *priv = file->private_data;
struct iwl_rx_queue *rxq = &priv->rxq;
char buf[256];
int pos = 0;
const size_t bufsz = sizeof(buf);
pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
rxq->read);
pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
rxq->write);
pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
rxq->free_count);
pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static int iwl_dbgfs_statistics_flag(struct iwl_priv *priv, char *buf,
int bufsz)
{
int p = 0;
p += scnprintf(buf + p, bufsz - p,
"Statistics Flag(0x%X):\n",
le32_to_cpu(priv->statistics.flag));
if (le32_to_cpu(priv->statistics.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",
(le32_to_cpu(priv->statistics.flag) &
UCODE_STATISTICS_FREQUENCY_MSK)
? "2.4 GHz" : "5.2 GHz");
p += scnprintf(buf + p, bufsz - p,
"\tTGj Narrow Band: %s\n",
(le32_to_cpu(priv->statistics.flag) &
UCODE_STATISTICS_NARROW_BAND_MSK)
? "enabled" : "disabled");
return p;
}
static const char ucode_stats_header[] =
"%-32s current acumulative delta max\n";
static const char ucode_stats_short_format[] =
" %-30s %10u\n";
static const char ucode_stats_format[] =
" %-30s %10u %10u %10u %10u\n";
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;
/* make request to uCode to retrieve statistics information */
mutex_lock(&priv->mutex);
ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
mutex_unlock(&priv->mutex);
if (ret) {
IWL_ERR(priv,
"Error sending statistics request: %zd\n", ret);
return -EAGAIN;
}
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf) {
IWL_ERR(priv, "Can not allocate Buffer\n");
return -ENOMEM;
}
/* the statistic information display here is based on
* the last statistics notification from uCode
* might not reflect the current uCode activity
*/
ofdm = &priv->statistics.rx.ofdm;
cck = &priv->statistics.rx.cck;
general = &priv->statistics.rx.general;
ht = &priv->statistics.rx.ofdm_ht;
accum_ofdm = &priv->accum_statistics.rx.ofdm;
accum_cck = &priv->accum_statistics.rx.cck;
accum_general = &priv->accum_statistics.rx.general;
accum_ht = &priv->accum_statistics.rx.ofdm_ht;
delta_ofdm = &priv->delta_statistics.rx.ofdm;
delta_cck = &priv->delta_statistics.rx.cck;
delta_general = &priv->delta_statistics.rx.general;
delta_ht = &priv->delta_statistics.rx.ofdm_ht;
max_ofdm = &priv->max_delta.rx.ofdm;
max_cck = &priv->max_delta.rx.cck;
max_general = &priv->max_delta.rx.general;
max_ht = &priv->max_delta.rx.ofdm_ht;
pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
"Statistics_Rx - OFDM:");
pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_header,
"Statistics_Rx - CCK:");
pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_header,
"Statistics_Rx - GENERAL:");
pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, "Statistics_Rx - OFDM_HT:\n");
pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
"Statistics_Rx - OFDM_HT:");
pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"unsupport_mcs:",
le32_to_cpu(ht->unsupport_mcs),
accum_ht->unsupport_mcs,
delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
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;
/* make request to uCode to retrieve statistics information */
mutex_lock(&priv->mutex);
ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
mutex_unlock(&priv->mutex);
if (ret) {
IWL_ERR(priv,
"Error sending statistics request: %zd\n", ret);
return -EAGAIN;
}
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf) {
IWL_ERR(priv, "Can not allocate Buffer\n");
return -ENOMEM;
}
/* the statistic information display here is based on
* the last statistics notification from uCode
* might not reflect the current uCode activity
*/
tx = &priv->statistics.tx;
accum_tx = &priv->accum_statistics.tx;
delta_tx = &priv->delta_statistics.tx;
max_tx = &priv->max_delta.tx;
pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
"Statistics_Tx:");
pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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);
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 *general, *accum_general;
struct statistics_general *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;
/* make request to uCode to retrieve statistics information */
mutex_lock(&priv->mutex);
ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
mutex_unlock(&priv->mutex);
if (ret) {
IWL_ERR(priv,
"Error sending statistics request: %zd\n", ret);
return -EAGAIN;
}
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf) {
IWL_ERR(priv, "Can not allocate Buffer\n");
return -ENOMEM;
}
/* the statistic information display here is based on
* the last statistics notification from uCode
* might not reflect the current uCode activity
*/
general = &priv->statistics.general;
dbg = &priv->statistics.general.dbg;
div = &priv->statistics.general.div;
accum_general = &priv->accum_statistics.general;
delta_general = &priv->delta_statistics.general;
max_general = &priv->max_delta.general;
accum_dbg = &priv->accum_statistics.general.dbg;
delta_dbg = &priv->delta_statistics.general.dbg;
max_dbg = &priv->max_delta.general.dbg;
accum_div = &priv->accum_statistics.general.div;
delta_div = &priv->delta_statistics.general.div;
max_div = &priv->max_delta.general.div;
pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
"Statistics_General:");
pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_short_format,
"temperature:",
le32_to_cpu(general->temperature));
pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_short_format,
"temperature_m:",
le32_to_cpu(general->temperature_m));
pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, "ttl_timestamp:\t\t\t%u\n",
le32_to_cpu(general->ttl_timestamp));
pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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, ucode_stats_format,
"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);
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) {
IWL_ERR(priv, "Can not allocate Buffer\n");
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) {
IWL_ERR(priv, "Can not allocate Buffer\n");
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_tx_power_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos) {
struct iwl_priv *priv = file->private_data;
char buf[128];
int pos = 0;
ssize_t ret;
const size_t bufsz = sizeof(buf);
struct statistics_tx *tx;
if (!iwl_is_alive(priv))
pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
else {
/* make request to uCode to retrieve statistics information */
mutex_lock(&priv->mutex);
ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
mutex_unlock(&priv->mutex);
if (ret) {
IWL_ERR(priv, "Error sending statistics request: %zd\n",
ret);
return -EAGAIN;
}
tx = &priv->statistics.tx;
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->cfg->valid_tx_ant & ANT_A) &&
tx->tx_power.ant_a)
pos += scnprintf(buf + pos, bufsz - pos,
"\tantenna A: 0x%X\n",
tx->tx_power.ant_a);
if ((priv->cfg->valid_tx_ant & ANT_B) &&
tx->tx_power.ant_b)
pos += scnprintf(buf + pos, bufsz - pos,
"\tantenna B: 0x%X\n",
tx->tx_power.ant_b);
if ((priv->cfg->valid_tx_ant & ANT_C) &&
tx->tx_power.ant_c)
pos += scnprintf(buf + pos, bufsz - pos,
"\tantenna C: 0x%X\n",
tx->tx_power.ant_c);
} else
pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
}
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
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, 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, CMD_SYNC, true);
mutex_unlock(&priv->mutex);
return count;
}
static ssize_t iwl_dbgfs_csr_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 csr;
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", &csr) != 1)
return -EFAULT;
if (priv->cfg->ops->lib->dump_csr)
priv->cfg->ops->lib->dump_csr(priv);
return count;
}
iwlwifi: add continuous uCode event log capability In order to help uCode debugging, adding the capability to provide continuous uCode event logging function. uCode events is located in round-robin event queue and filled by uCode, by enable continuous event logging, driver check the write pointer and log the newly added events in iwl_bg_ucode_trace() timer function. There is still possibility of missing events if event queue being wrapped before next event dump; but with this capability, we can have much better understanding of the uCode behavior during runtime; it can help to debug the uCode related issues. Methods to enable/disable the continuous event log: step 1: enable ucode trace timer "echo 1 > /sys/kernel/debug/ieee80211/phyX/iwlagn/debug/ucode_tracing" step 2: start ftrace sudo ./trace-cmd record -e iwlwifi_ucode:* sleep 1d step 3: stop ftrace sudo ./trace-cmd report trace.dat step 4: disable ucode trace timer "echo 0 > /sys/kernel/debug/ieee80211/phyX/iwlagn/debug/ucode_tracing" use "ucode_tracing" debugfs file to display number of event queue wrapped when driver attempt the continuous event logging. If event queue being wrapped more than once when driver has opportunity to log the event; it indicated there are events missing in the event log trace. This continuous event log function only available for 4965 and newer NICs. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-11 06:37:26 +08:00
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 = (struct iwl_priv *)file->private_data;
int pos = 0;
char buf[128];
const size_t bufsz = sizeof(buf);
ssize_t ret;
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);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
return ret;
}
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;
/* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
mod_timer(&priv->ucode_trace,
jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
} else {
priv->event_log.ucode_trace = false;
del_timer_sync(&priv->ucode_trace);
}
return count;
}
DEBUGFS_READ_FILE_OPS(rx_statistics);
DEBUGFS_READ_FILE_OPS(tx_statistics);
DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
DEBUGFS_READ_FILE_OPS(rx_queue);
DEBUGFS_READ_FILE_OPS(tx_queue);
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(tx_power);
DEBUGFS_READ_FILE_OPS(power_save_status);
DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
DEBUGFS_WRITE_FILE_OPS(csr);
iwlwifi: add continuous uCode event log capability In order to help uCode debugging, adding the capability to provide continuous uCode event logging function. uCode events is located in round-robin event queue and filled by uCode, by enable continuous event logging, driver check the write pointer and log the newly added events in iwl_bg_ucode_trace() timer function. There is still possibility of missing events if event queue being wrapped before next event dump; but with this capability, we can have much better understanding of the uCode behavior during runtime; it can help to debug the uCode related issues. Methods to enable/disable the continuous event log: step 1: enable ucode trace timer "echo 1 > /sys/kernel/debug/ieee80211/phyX/iwlagn/debug/ucode_tracing" step 2: start ftrace sudo ./trace-cmd record -e iwlwifi_ucode:* sleep 1d step 3: stop ftrace sudo ./trace-cmd report trace.dat step 4: disable ucode trace timer "echo 0 > /sys/kernel/debug/ieee80211/phyX/iwlagn/debug/ucode_tracing" use "ucode_tracing" debugfs file to display number of event queue wrapped when driver attempt the continuous event logging. If event queue being wrapped more than once when driver has opportunity to log the event; it indicated there are events missing in the event log trace. This continuous event log function only available for 4965 and newer NICs. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-11 06:37:26 +08:00
DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
/*
* Create the debugfs files and directories
*
*/
int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
{
struct iwl_debugfs *dbgfs;
struct dentry *phyd = priv->hw->wiphy->debugfsdir;
int ret = 0;
dbgfs = kzalloc(sizeof(struct iwl_debugfs), GFP_KERNEL);
if (!dbgfs) {
ret = -ENOMEM;
goto err;
}
priv->dbgfs = dbgfs;
dbgfs->name = name;
dbgfs->dir_drv = debugfs_create_dir(name, phyd);
if (!dbgfs->dir_drv || IS_ERR(dbgfs->dir_drv)) {
ret = -ENOENT;
goto err;
}
DEBUGFS_ADD_DIR(data, dbgfs->dir_drv);
DEBUGFS_ADD_DIR(rf, dbgfs->dir_drv);
DEBUGFS_ADD_DIR(debug, dbgfs->dir_drv);
DEBUGFS_ADD_FILE(nvm, data, S_IRUSR);
DEBUGFS_ADD_FILE(sram, data, S_IWUSR | S_IRUSR);
DEBUGFS_ADD_FILE(log_event, data, S_IWUSR | S_IRUSR);
DEBUGFS_ADD_FILE(stations, data, S_IRUSR);
DEBUGFS_ADD_FILE(channels, data, S_IRUSR);
DEBUGFS_ADD_FILE(status, data, S_IRUSR);
DEBUGFS_ADD_FILE(interrupt, data, S_IWUSR | S_IRUSR);
DEBUGFS_ADD_FILE(qos, data, S_IRUSR);
DEBUGFS_ADD_FILE(led, data, S_IRUSR);
DEBUGFS_ADD_FILE(sleep_level_override, data, S_IWUSR | S_IRUSR);
DEBUGFS_ADD_FILE(current_sleep_command, data, S_IRUSR);
DEBUGFS_ADD_FILE(thermal_throttling, data, S_IRUSR);
DEBUGFS_ADD_FILE(disable_ht40, data, S_IWUSR | S_IRUSR);
DEBUGFS_ADD_FILE(rx_statistics, debug, S_IRUSR);
DEBUGFS_ADD_FILE(tx_statistics, debug, S_IRUSR);
DEBUGFS_ADD_FILE(traffic_log, debug, S_IWUSR | S_IRUSR);
DEBUGFS_ADD_FILE(rx_queue, debug, S_IRUSR);
DEBUGFS_ADD_FILE(tx_queue, debug, S_IRUSR);
DEBUGFS_ADD_FILE(tx_power, debug, S_IRUSR);
DEBUGFS_ADD_FILE(power_save_status, debug, S_IRUSR);
DEBUGFS_ADD_FILE(clear_ucode_statistics, debug, S_IWUSR);
DEBUGFS_ADD_FILE(clear_traffic_statistics, debug, S_IWUSR);
DEBUGFS_ADD_FILE(csr, debug, S_IWUSR);
if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
DEBUGFS_ADD_FILE(ucode_rx_stats, debug, S_IRUSR);
DEBUGFS_ADD_FILE(ucode_tx_stats, debug, S_IRUSR);
DEBUGFS_ADD_FILE(ucode_general_stats, debug, S_IRUSR);
DEBUGFS_ADD_FILE(sensitivity, debug, S_IRUSR);
DEBUGFS_ADD_FILE(chain_noise, debug, S_IRUSR);
iwlwifi: add continuous uCode event log capability In order to help uCode debugging, adding the capability to provide continuous uCode event logging function. uCode events is located in round-robin event queue and filled by uCode, by enable continuous event logging, driver check the write pointer and log the newly added events in iwl_bg_ucode_trace() timer function. There is still possibility of missing events if event queue being wrapped before next event dump; but with this capability, we can have much better understanding of the uCode behavior during runtime; it can help to debug the uCode related issues. Methods to enable/disable the continuous event log: step 1: enable ucode trace timer "echo 1 > /sys/kernel/debug/ieee80211/phyX/iwlagn/debug/ucode_tracing" step 2: start ftrace sudo ./trace-cmd record -e iwlwifi_ucode:* sleep 1d step 3: stop ftrace sudo ./trace-cmd report trace.dat step 4: disable ucode trace timer "echo 0 > /sys/kernel/debug/ieee80211/phyX/iwlagn/debug/ucode_tracing" use "ucode_tracing" debugfs file to display number of event queue wrapped when driver attempt the continuous event logging. If event queue being wrapped more than once when driver has opportunity to log the event; it indicated there are events missing in the event log trace. This continuous event log function only available for 4965 and newer NICs. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-11 06:37:26 +08:00
DEBUGFS_ADD_FILE(ucode_tracing, debug, S_IWUSR | S_IRUSR);
}
DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
&priv->disable_chain_noise_cal);
if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
DEBUGFS_ADD_BOOL(disable_tx_power, rf,
&priv->disable_tx_power_cal);
return 0;
err:
IWL_ERR(priv, "Can't open the debugfs directory\n");
iwl_dbgfs_unregister(priv);
return ret;
}
EXPORT_SYMBOL(iwl_dbgfs_register);
/**
* Remove the debugfs files and directories
*
*/
void iwl_dbgfs_unregister(struct iwl_priv *priv)
{
if (!priv->dbgfs)
return;
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sleep_level_override);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_current_sleep_command);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_nvm);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_log_event);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_channels);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_status);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_interrupt);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_qos);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_led);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_thermal_throttling);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_disable_ht40);
DEBUGFS_REMOVE(priv->dbgfs->dir_data);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_statistics);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_statistics);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_traffic_log);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_queue);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_queue);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_power);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_power_save_status);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
file_clear_ucode_statistics);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
file_clear_traffic_statistics);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_csr);
if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
file_ucode_rx_stats);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
file_ucode_tx_stats);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
file_ucode_general_stats);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
file_sensitivity);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
file_chain_noise);
iwlwifi: add continuous uCode event log capability In order to help uCode debugging, adding the capability to provide continuous uCode event logging function. uCode events is located in round-robin event queue and filled by uCode, by enable continuous event logging, driver check the write pointer and log the newly added events in iwl_bg_ucode_trace() timer function. There is still possibility of missing events if event queue being wrapped before next event dump; but with this capability, we can have much better understanding of the uCode behavior during runtime; it can help to debug the uCode related issues. Methods to enable/disable the continuous event log: step 1: enable ucode trace timer "echo 1 > /sys/kernel/debug/ieee80211/phyX/iwlagn/debug/ucode_tracing" step 2: start ftrace sudo ./trace-cmd record -e iwlwifi_ucode:* sleep 1d step 3: stop ftrace sudo ./trace-cmd report trace.dat step 4: disable ucode trace timer "echo 0 > /sys/kernel/debug/ieee80211/phyX/iwlagn/debug/ucode_tracing" use "ucode_tracing" debugfs file to display number of event queue wrapped when driver attempt the continuous event logging. If event queue being wrapped more than once when driver has opportunity to log the event; it indicated there are events missing in the event log trace. This continuous event log function only available for 4965 and newer NICs. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-11 06:37:26 +08:00
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
file_ucode_tracing);
}
DEBUGFS_REMOVE(priv->dbgfs->dir_debug);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_tx_power);
DEBUGFS_REMOVE(priv->dbgfs->dir_rf);
DEBUGFS_REMOVE(priv->dbgfs->dir_drv);
kfree(priv->dbgfs);
priv->dbgfs = NULL;
}
EXPORT_SYMBOL(iwl_dbgfs_unregister);