#include "mvm.h"
#include "debugfs.h"
static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm,
struct ieee80211_vif *vif,
enum iwl_dbgfs_pm_mask param, int val)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_dbgfs_pm *dbgfs_pm = &mvmvif->dbgfs_pm;
dbgfs_pm->mask |= param;
switch (param) {
case MVM_DEBUGFS_PM_KEEP_ALIVE: {
int dtimper = vif->bss_conf.dtim_period ?: 1;
int dtimper_msec = dtimper * vif->bss_conf.beacon_int;
IWL_DEBUG_POWER(mvm, "debugfs: set keep_alive= %d sec\n", val);
if (val * MSEC_PER_SEC < 3 * dtimper_msec)
IWL_WARN(mvm,
"debugfs: keep alive period (%ld msec) is less than minimum required (%d msec)\n",
val * MSEC_PER_SEC, 3 * dtimper_msec);
dbgfs_pm->keep_alive_seconds = val;
break;
}
case MVM_DEBUGFS_PM_SKIP_OVER_DTIM:
IWL_DEBUG_POWER(mvm, "skip_over_dtim %s\n",
val ? "enabled" : "disabled");
dbgfs_pm->skip_over_dtim = val;
break;
case MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS:
IWL_DEBUG_POWER(mvm, "skip_dtim_periods=%d\n", val);
dbgfs_pm->skip_dtim_periods = val;
break;
case MVM_DEBUGFS_PM_RX_DATA_TIMEOUT:
IWL_DEBUG_POWER(mvm, "rx_data_timeout=%d\n", val);
dbgfs_pm->rx_data_timeout = val;
break;
case MVM_DEBUGFS_PM_TX_DATA_TIMEOUT:
IWL_DEBUG_POWER(mvm, "tx_data_timeout=%d\n", val);
dbgfs_pm->tx_data_timeout = val;
break;
case MVM_DEBUGFS_PM_LPRX_ENA:
IWL_DEBUG_POWER(mvm, "lprx %s\n", val ? "enabled" : "disabled");
dbgfs_pm->lprx_ena = val;
break;
case MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD:
IWL_DEBUG_POWER(mvm, "lprx_rssi_threshold=%d\n", val);
dbgfs_pm->lprx_rssi_threshold = val;
break;
case MVM_DEBUGFS_PM_SNOOZE_ENABLE:
IWL_DEBUG_POWER(mvm, "snooze_enable=%d\n", val);
dbgfs_pm->snooze_ena = val;
break;
case MVM_DEBUGFS_PM_UAPSD_MISBEHAVING:
IWL_DEBUG_POWER(mvm, "uapsd_misbehaving_enable=%d\n", val);
dbgfs_pm->uapsd_misbehaving = val;
break;
case MVM_DEBUGFS_PM_USE_PS_POLL:
IWL_DEBUG_POWER(mvm, "use_ps_poll=%d\n", val);
dbgfs_pm->use_ps_poll = val;
break;
}
}
static ssize_t iwl_dbgfs_pm_params_write(struct ieee80211_vif *vif, char *buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = mvmvif->mvm;
enum iwl_dbgfs_pm_mask param;
int val, ret;
if (!strncmp("keep_alive=", buf, 11)) {
if (sscanf(buf + 11, "%d", &val) != 1)
return -EINVAL;
param = MVM_DEBUGFS_PM_KEEP_ALIVE;
} else if (!strncmp("skip_over_dtim=", buf, 15)) {
if (sscanf(buf + 15, "%d", &val) != 1)
return -EINVAL;
param = MVM_DEBUGFS_PM_SKIP_OVER_DTIM;
} else if (!strncmp("skip_dtim_periods=", buf, 18)) {
if (sscanf(buf + 18, "%d", &val) != 1)
return -EINVAL;
param = MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS;
} else if (!strncmp("rx_data_timeout=", buf, 16)) {
if (sscanf(buf + 16, "%d", &val) != 1)
return -EINVAL;
param = MVM_DEBUGFS_PM_RX_DATA_TIMEOUT;
} else if (!strncmp("tx_data_timeout=", buf, 16)) {
if (sscanf(buf + 16, "%d", &val) != 1)
return -EINVAL;
param = MVM_DEBUGFS_PM_TX_DATA_TIMEOUT;
} else if (!strncmp("lprx=", buf, 5)) {
if (sscanf(buf + 5, "%d", &val) != 1)
return -EINVAL;
param = MVM_DEBUGFS_PM_LPRX_ENA;
} else if (!strncmp("lprx_rssi_threshold=", buf, 20)) {
if (sscanf(buf + 20, "%d", &val) != 1)
return -EINVAL;
if (val > POWER_LPRX_RSSI_THRESHOLD_MAX || val <
POWER_LPRX_RSSI_THRESHOLD_MIN)
return -EINVAL;
param = MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD;
} else if (!strncmp("snooze_enable=", buf, 14)) {
if (sscanf(buf + 14, "%d", &val) != 1)
return -EINVAL;
param = MVM_DEBUGFS_PM_SNOOZE_ENABLE;
} else if (!strncmp("uapsd_misbehaving=", buf, 18)) {
if (sscanf(buf + 18, "%d", &val) != 1)
return -EINVAL;
param = MVM_DEBUGFS_PM_UAPSD_MISBEHAVING;
} else if (!strncmp("use_ps_poll=", buf, 12)) {
if (sscanf(buf + 12, "%d", &val) != 1)
return -EINVAL;
param = MVM_DEBUGFS_PM_USE_PS_POLL;
} else {
return -EINVAL;
}
mutex_lock(&mvm->mutex);
iwl_dbgfs_update_pm(mvm, vif, param, val);
ret = iwl_mvm_power_update_mac(mvm);
mutex_unlock(&mvm->mutex);
return ret ?: count;
}
static ssize_t iwl_dbgfs_tx_pwr_lmt_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_vif *vif = file->private_data;
char buf[64];
int bufsz = sizeof(buf);
int pos;
pos = scnprintf(buf, bufsz, "bss limit = %d\n",
vif->bss_conf.txpower);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static ssize_t iwl_dbgfs_pm_params_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_vif *vif = file->private_data;
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = mvmvif->mvm;
char buf[512];
int bufsz = sizeof(buf);
int pos;
pos = iwl_mvm_power_mac_dbgfs_read(mvm, vif, buf, bufsz);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static ssize_t iwl_dbgfs_mac_params_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_vif *vif = file->private_data;
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = mvmvif->mvm;
u8 ap_sta_id;
struct ieee80211_chanctx_conf *chanctx_conf;
char buf[512];
int bufsz = sizeof(buf);
int pos = 0;
int i;
mutex_lock(&mvm->mutex);
ap_sta_id = mvmvif->deflink.ap_sta_id;
switch (ieee80211_vif_type_p2p(vif)) {
case NL80211_IFTYPE_ADHOC:
pos += scnprintf(buf+pos, bufsz-pos, "type: ibss\n");
break;
case NL80211_IFTYPE_STATION:
pos += scnprintf(buf+pos, bufsz-pos, "type: bss\n");
break;
case NL80211_IFTYPE_AP:
pos += scnprintf(buf+pos, bufsz-pos, "type: ap\n");
break;
case NL80211_IFTYPE_P2P_CLIENT:
pos += scnprintf(buf+pos, bufsz-pos, "type: p2p client\n");
break;
case NL80211_IFTYPE_P2P_GO:
pos += scnprintf(buf+pos, bufsz-pos, "type: p2p go\n");
break;
case NL80211_IFTYPE_P2P_DEVICE:
pos += scnprintf(buf+pos, bufsz-pos, "type: p2p dev\n");
break;
default:
break;
}
pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n",
mvmvif->id, mvmvif->color);
pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n",
vif->bss_conf.bssid);
pos += scnprintf(buf+pos, bufsz-pos, "Load: %d\n",
mvm->tcm.result.load[mvmvif->id]);
pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n");
for (i = 0; i < ARRAY_SIZE(mvmvif->deflink.queue_params); i++)
pos += scnprintf(buf+pos, bufsz-pos,
"\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n",
i, mvmvif->deflink.queue_params[i].txop,
mvmvif->deflink.queue_params[i].cw_min,
mvmvif->deflink.queue_params[i].cw_max,
mvmvif->deflink.queue_params[i].aifs,
mvmvif->deflink.queue_params[i].uapsd);
if (vif->type == NL80211_IFTYPE_STATION &&
ap_sta_id != IWL_INVALID_STA) {
struct iwl_mvm_sta *mvm_sta;
mvm_sta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id);
if (mvm_sta) {
pos += scnprintf(buf+pos, bufsz-pos,
"ap_sta_id %d - reduced Tx power %d\n",
ap_sta_id,
mvm_sta->bt_reduced_txpower);
}
}
rcu_read_lock();
chanctx_conf = rcu_dereference(vif->bss_conf.chanctx_conf);
if (chanctx_conf)
pos += scnprintf(buf+pos, bufsz-pos,
"idle rx chains %d, active rx chains: %d\n",
chanctx_conf->rx_chains_static,
chanctx_conf->rx_chains_dynamic);
rcu_read_unlock();
mutex_unlock(&mvm->mutex);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif,
enum iwl_dbgfs_bf_mask param, int value)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
dbgfs_bf->mask |= param;
switch (param) {
case MVM_DEBUGFS_BF_ENERGY_DELTA:
dbgfs_bf->bf_energy_delta = value;
break;
case MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA:
dbgfs_bf->bf_roaming_energy_delta = value;
break;
case MVM_DEBUGFS_BF_ROAMING_STATE:
dbgfs_bf->bf_roaming_state = value;
break;
case MVM_DEBUGFS_BF_TEMP_THRESHOLD:
dbgfs_bf->bf_temp_threshold = value;
break;
case MVM_DEBUGFS_BF_TEMP_FAST_FILTER:
dbgfs_bf->bf_temp_fast_filter = value;
break;
case MVM_DEBUGFS_BF_TEMP_SLOW_FILTER:
dbgfs_bf->bf_temp_slow_filter = value;
break;
case MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER:
dbgfs_bf->bf_enable_beacon_filter = value;
break;
case MVM_DEBUGFS_BF_DEBUG_FLAG:
dbgfs_bf->bf_debug_flag = value;
break;
case MVM_DEBUGFS_BF_ESCAPE_TIMER:
dbgfs_bf->bf_escape_timer = value;
break;
case MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT:
dbgfs_bf->ba_enable_beacon_abort = value;
break;
case MVM_DEBUGFS_BA_ESCAPE_TIMER:
dbgfs_bf->ba_escape_timer = value;
break;
}
}
static ssize_t iwl_dbgfs_bf_params_write(struct ieee80211_vif *vif, char *buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = mvmvif->mvm;
enum iwl_dbgfs_bf_mask param;
int value, ret = 0;
if (!strncmp("bf_energy_delta=", buf, 16)) {
if (sscanf(buf+16, "%d", &value) != 1)
return -EINVAL;
if (value < IWL_BF_ENERGY_DELTA_MIN ||
value > IWL_BF_ENERGY_DELTA_MAX)
return -EINVAL;
param = MVM_DEBUGFS_BF_ENERGY_DELTA;
} else if (!strncmp("bf_roaming_energy_delta=", buf, 24)) {
if (sscanf(buf+24, "%d", &value) != 1)
return -EINVAL;
if (value < IWL_BF_ROAMING_ENERGY_DELTA_MIN ||
value > IWL_BF_ROAMING_ENERGY_DELTA_MAX)
return -EINVAL;
param = MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA;
} else if (!strncmp("bf_roaming_state=", buf, 17)) {
if (sscanf(buf+17, "%d", &value) != 1)
return -EINVAL;
if (value < IWL_BF_ROAMING_STATE_MIN ||
value > IWL_BF_ROAMING_STATE_MAX)
return -EINVAL;
param = MVM_DEBUGFS_BF_ROAMING_STATE;
} else if (!strncmp("bf_temp_threshold=", buf, 18)) {
if (sscanf(buf+18, "%d", &value) != 1)
return -EINVAL;
if (value < IWL_BF_TEMP_THRESHOLD_MIN ||
value > IWL_BF_TEMP_THRESHOLD_MAX)
return -EINVAL;
param = MVM_DEBUGFS_BF_TEMP_THRESHOLD;
} else if (!strncmp("bf_temp_fast_filter=", buf, 20)) {
if (sscanf(buf+20, "%d", &value) != 1)
return -EINVAL;
if (value < IWL_BF_TEMP_FAST_FILTER_MIN ||
value > IWL_BF_TEMP_FAST_FILTER_MAX)
return -EINVAL;
param = MVM_DEBUGFS_BF_TEMP_FAST_FILTER;
} else if (!strncmp("bf_temp_slow_filter=", buf, 20)) {
if (sscanf(buf+20, "%d", &value) != 1)
return -EINVAL;
if (value < IWL_BF_TEMP_SLOW_FILTER_MIN ||
value > IWL_BF_TEMP_SLOW_FILTER_MAX)
return -EINVAL;
param = MVM_DEBUGFS_BF_TEMP_SLOW_FILTER;
} else if (!strncmp("bf_enable_beacon_filter=", buf, 24)) {
if (sscanf(buf+24, "%d", &value) != 1)
return -EINVAL;
if (value < 0 || value > 1)
return -EINVAL;
param = MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER;
} else if (!strncmp("bf_debug_flag=", buf, 14)) {
if (sscanf(buf+14, "%d", &value) != 1)
return -EINVAL;
if (value < 0 || value > 1)
return -EINVAL;
param = MVM_DEBUGFS_BF_DEBUG_FLAG;
} else if (!strncmp("bf_escape_timer=", buf, 16)) {
if (sscanf(buf+16, "%d", &value) != 1)
return -EINVAL;
if (value < IWL_BF_ESCAPE_TIMER_MIN ||
value > IWL_BF_ESCAPE_TIMER_MAX)
return -EINVAL;
param = MVM_DEBUGFS_BF_ESCAPE_TIMER;
} else if (!strncmp("ba_escape_timer=", buf, 16)) {
if (sscanf(buf+16, "%d", &value) != 1)
return -EINVAL;
if (value < IWL_BA_ESCAPE_TIMER_MIN ||
value > IWL_BA_ESCAPE_TIMER_MAX)
return -EINVAL;
param = MVM_DEBUGFS_BA_ESCAPE_TIMER;
} else if (!strncmp("ba_enable_beacon_abort=", buf, 23)) {
if (sscanf(buf+23, "%d", &value) != 1)
return -EINVAL;
if (value < 0 || value > 1)
return -EINVAL;
param = MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT;
} else {
return -EINVAL;
}
mutex_lock(&mvm->mutex);
iwl_dbgfs_update_bf(vif, param, value);
if (param == MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER && !value)
ret = iwl_mvm_disable_beacon_filter(mvm, vif);
else
ret = iwl_mvm_enable_beacon_filter(mvm, vif);
mutex_unlock(&mvm->mutex);
return ret ?: count;
}
static ssize_t iwl_dbgfs_bf_params_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_vif *vif = file->private_data;
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
char buf[256];
int pos = 0;
const size_t bufsz = sizeof(buf);
struct iwl_beacon_filter_cmd cmd = {
IWL_BF_CMD_CONFIG_DEFAULTS,
.bf_enable_beacon_filter =
cpu_to_le32(IWL_BF_ENABLE_BEACON_FILTER_DEFAULT),
.ba_enable_beacon_abort =
cpu_to_le32(IWL_BA_ENABLE_BEACON_ABORT_DEFAULT),
};
iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
if (mvmvif->bf_enabled)
cmd.bf_enable_beacon_filter = cpu_to_le32(1);
else
cmd.bf_enable_beacon_filter = 0;
pos += scnprintf(buf+pos, bufsz-pos, "bf_energy_delta = %d\n",
le32_to_cpu(cmd.bf_energy_delta));
pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_energy_delta = %d\n",
le32_to_cpu(cmd.bf_roaming_energy_delta));
pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_state = %d\n",
le32_to_cpu(cmd.bf_roaming_state));
pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_threshold = %d\n",
le32_to_cpu(cmd.bf_temp_threshold));
pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_fast_filter = %d\n",
le32_to_cpu(cmd.bf_temp_fast_filter));
pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_slow_filter = %d\n",
le32_to_cpu(cmd.bf_temp_slow_filter));
pos += scnprintf(buf+pos, bufsz-pos, "bf_enable_beacon_filter = %d\n",
le32_to_cpu(cmd.bf_enable_beacon_filter));
pos += scnprintf(buf+pos, bufsz-pos, "bf_debug_flag = %d\n",
le32_to_cpu(cmd.bf_debug_flag));
pos += scnprintf(buf+pos, bufsz-pos, "bf_escape_timer = %d\n",
le32_to_cpu(cmd.bf_escape_timer));
pos += scnprintf(buf+pos, bufsz-pos, "ba_escape_timer = %d\n",
le32_to_cpu(cmd.ba_escape_timer));
pos += scnprintf(buf+pos, bufsz-pos, "ba_enable_beacon_abort = %d\n",
le32_to_cpu(cmd.ba_enable_beacon_abort));
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static ssize_t iwl_dbgfs_os_device_timediff_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_vif *vif = file->private_data;
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = mvmvif->mvm;
u32 curr_gp2;
u64 curr_os;
s64 diff;
char buf[64];
const size_t bufsz = sizeof(buf);
int pos = 0;
mutex_lock(&mvm->mutex);
iwl_mvm_get_sync_time(mvm, CLOCK_BOOTTIME, &curr_gp2, &curr_os, NULL);
mutex_unlock(&mvm->mutex);
do_div(curr_os, NSEC_PER_USEC);
diff = curr_os - curr_gp2;
pos += scnprintf(buf + pos, bufsz - pos, "diff=%lld\n", diff);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static ssize_t
iwl_dbgfs_low_latency_write_handle(struct wiphy *wiphy, struct file *file,
char *buf, size_t count, void *data)
{
struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
struct ieee80211_vif *vif = data;
u8 value;
int ret;
ret = kstrtou8(buf, 0, &value);
if (ret)
return ret;
if (value > 1)
return -EINVAL;
mutex_lock(&mvm->mutex);
iwl_mvm_update_low_latency(mvm, vif, value, LOW_LATENCY_DEBUGFS);
mutex_unlock(&mvm->mutex);
return count;
}
static ssize_t iwl_dbgfs_low_latency_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_vif *vif = file->private_data;
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = mvmvif->mvm;
char buf[10] = {};
return wiphy_locked_debugfs_write(mvm->hw->wiphy, file,
buf, sizeof(buf), user_buf, count,
iwl_dbgfs_low_latency_write_handle,
vif);
}
static ssize_t
iwl_dbgfs_low_latency_force_write_handle(struct wiphy *wiphy, struct file *file,
char *buf, size_t count, void *data)
{
struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
struct ieee80211_vif *vif = data;
u8 value;
int ret;
ret = kstrtou8(buf, 0, &value);
if (ret)
return ret;
if (value > NUM_LOW_LATENCY_FORCE)
return -EINVAL;
mutex_lock(&mvm->mutex);
if (value == LOW_LATENCY_FORCE_UNSET) {
iwl_mvm_update_low_latency(mvm, vif, false,
LOW_LATENCY_DEBUGFS_FORCE);
iwl_mvm_update_low_latency(mvm, vif, false,
LOW_LATENCY_DEBUGFS_FORCE_ENABLE);
} else {
iwl_mvm_update_low_latency(mvm, vif,
value == LOW_LATENCY_FORCE_ON,
LOW_LATENCY_DEBUGFS_FORCE);
iwl_mvm_update_low_latency(mvm, vif, true,
LOW_LATENCY_DEBUGFS_FORCE_ENABLE);
}
mutex_unlock(&mvm->mutex);
return count;
}
static ssize_t
iwl_dbgfs_low_latency_force_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_vif *vif = file->private_data;
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = mvmvif->mvm;
char buf[10] = {};
return wiphy_locked_debugfs_write(mvm->hw->wiphy, file,
buf, sizeof(buf), user_buf, count,
iwl_dbgfs_low_latency_force_write_handle,
vif);
}
static ssize_t iwl_dbgfs_low_latency_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_vif *vif = file->private_data;
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
char format[] = "traffic=%d\ndbgfs=%d\nvcmd=%d\nvif_type=%d\n"
"dbgfs_force_enable=%d\ndbgfs_force=%d\nactual=%d\n";
char buf[sizeof(format) + 1] = {};
int len;
len = scnprintf(buf, sizeof(buf) - 1, format,
!!(mvmvif->low_latency & LOW_LATENCY_TRAFFIC),
!!(mvmvif->low_latency & LOW_LATENCY_DEBUGFS),
!!(mvmvif->low_latency & LOW_LATENCY_VCMD),
!!(mvmvif->low_latency & LOW_LATENCY_VIF_TYPE),
!!(mvmvif->low_latency &
LOW_LATENCY_DEBUGFS_FORCE_ENABLE),
!!(mvmvif->low_latency & LOW_LATENCY_DEBUGFS_FORCE),
!!(mvmvif->low_latency_actual));
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t iwl_dbgfs_uapsd_misbehaving_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_vif *vif = file->private_data;
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
char buf[20];
int len;
len = sprintf(buf, "%pM\n", mvmvif->uapsd_misbehaving_ap_addr);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t iwl_dbgfs_uapsd_misbehaving_write(struct ieee80211_vif *vif,
char *buf, size_t count,
loff_t *ppos)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = mvmvif->mvm;
bool ret;
mutex_lock(&mvm->mutex);
ret = mac_pton(buf, mvmvif->uapsd_misbehaving_ap_addr);
mutex_unlock(&mvm->mutex);
return ret ? count : -EINVAL;
}
static ssize_t iwl_dbgfs_rx_phyinfo_write(struct ieee80211_vif *vif, char *buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = mvmvif->mvm;
struct ieee80211_bss_conf *link_conf;
u16 value;
int link_id, ret = -EINVAL;
ret = kstrtou16(buf, 0, &value);
if (ret)
return ret;
mutex_lock(&mvm->mutex);
mvm->dbgfs_rx_phyinfo = value;
for_each_vif_active_link(vif, link_conf, link_id) {
struct ieee80211_chanctx_conf *chanctx_conf;
struct cfg80211_chan_def min_def, ap_def;
struct iwl_mvm_phy_ctxt *phy_ctxt;
u8 chains_static, chains_dynamic;
rcu_read_lock();
chanctx_conf = rcu_dereference(link_conf->chanctx_conf);
if (!chanctx_conf) {
rcu_read_unlock();
continue;
}
min_def = chanctx_conf->min_def;
ap_def = chanctx_conf->ap;
chains_static = chanctx_conf->rx_chains_static;
chains_dynamic = chanctx_conf->rx_chains_dynamic;
rcu_read_unlock();
phy_ctxt = mvmvif->link[link_id]->phy_ctxt;
if (!phy_ctxt)
continue;
ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &min_def, &ap_def,
chains_static, chains_dynamic);
}
mutex_unlock(&mvm->mutex);
return ret ?: count;
}
static ssize_t iwl_dbgfs_rx_phyinfo_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_vif *vif = file->private_data;
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
char buf[8];
int len;
len = scnprintf(buf, sizeof(buf), "0x%04x\n",
mvmvif->mvm->dbgfs_rx_phyinfo);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static void iwl_dbgfs_quota_check(void *data, u8 *mac,
struct ieee80211_vif *vif)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
int *ret = data;
if (mvmvif->dbgfs_quota_min)
*ret = -EINVAL;
}
static ssize_t iwl_dbgfs_quota_min_write(struct ieee80211_vif *vif, char *buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = mvmvif->mvm;
u16 value;
int ret;
ret = kstrtou16(buf, 0, &value);
if (ret)
return ret;
if (value > 95)
return -EINVAL;
mutex_lock(&mvm->mutex);
mvmvif->dbgfs_quota_min = 0;
ieee80211_iterate_interfaces(mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
iwl_dbgfs_quota_check, &ret);
if (ret == 0) {
mvmvif->dbgfs_quota_min = value;
iwl_mvm_update_quotas(mvm, false, NULL);
}
mutex_unlock(&mvm->mutex);
return ret ?: count;
}
static ssize_t iwl_dbgfs_quota_min_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_vif *vif = file->private_data;
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
char buf[10];
int len;
len = scnprintf(buf, sizeof(buf), "%d\n", mvmvif->dbgfs_quota_min);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t iwl_dbgfs_max_tx_op_write(struct ieee80211_vif *vif, char *buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = mvmvif->mvm;
u16 value;
int ret;
ret = kstrtou16(buf, 0, &value);
if (ret)
return ret;
mutex_lock(&mvm->mutex);
mvmvif->max_tx_op = value;
mutex_unlock(&mvm->mutex);
return count;
}
static ssize_t iwl_dbgfs_max_tx_op_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_vif *vif = file->private_data;
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = mvmvif->mvm;
char buf[10];
int len;
mutex_lock(&mvm->mutex);
len = scnprintf(buf, sizeof(buf), "%hu\n", mvmvif->max_tx_op);
mutex_unlock(&mvm->mutex);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
_MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
_MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
#define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode) do { \
debugfs_create_file(#name, mode, parent, vif, \
&iwl_dbgfs_##name##_ops); \
} while (0)
MVM_DEBUGFS_READ_FILE_OPS(mac_params);
MVM_DEBUGFS_READ_FILE_OPS(tx_pwr_lmt);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params, 32);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params, 256);
static const struct file_operations iwl_dbgfs_low_latency_ops = {
.write = iwl_dbgfs_low_latency_write,
.read = iwl_dbgfs_low_latency_read,
.open = simple_open,
.llseek = generic_file_llseek,
};
static const struct file_operations iwl_dbgfs_low_latency_force_ops = {
.write = iwl_dbgfs_low_latency_force_write,
.open = simple_open,
.llseek = generic_file_llseek,
};
MVM_DEBUGFS_READ_WRITE_FILE_OPS(uapsd_misbehaving, 20);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(rx_phyinfo, 10);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(quota_min, 32);
MVM_DEBUGFS_READ_FILE_OPS(os_device_timediff);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(max_tx_op, 10);
void iwl_mvm_vif_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
{
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
struct dentry *dbgfs_dir = vif->debugfs_dir;
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir);
if (IS_ERR_OR_NULL(mvmvif->dbgfs_dir)) {
IWL_ERR(mvm, "Failed to create debugfs directory under %pd\n",
dbgfs_dir);
return;
}
if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM &&
((vif->type == NL80211_IFTYPE_STATION && !vif->p2p) ||
(vif->type == NL80211_IFTYPE_STATION && vif->p2p)))
MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, 0600);
MVM_DEBUGFS_ADD_FILE_VIF(tx_pwr_lmt, mvmvif->dbgfs_dir, 0400);
MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir, 0400);
MVM_DEBUGFS_ADD_FILE_VIF(low_latency, mvmvif->dbgfs_dir, 0600);
MVM_DEBUGFS_ADD_FILE_VIF(low_latency_force, mvmvif->dbgfs_dir, 0600);
MVM_DEBUGFS_ADD_FILE_VIF(uapsd_misbehaving, mvmvif->dbgfs_dir, 0600);
MVM_DEBUGFS_ADD_FILE_VIF(rx_phyinfo, mvmvif->dbgfs_dir, 0600);
MVM_DEBUGFS_ADD_FILE_VIF(quota_min, mvmvif->dbgfs_dir, 0600);
MVM_DEBUGFS_ADD_FILE_VIF(os_device_timediff, mvmvif->dbgfs_dir, 0400);
MVM_DEBUGFS_ADD_FILE_VIF(max_tx_op, mvmvif->dbgfs_dir, 0600);
debugfs_create_bool("ftm_unprotected", 0200, mvmvif->dbgfs_dir,
&mvmvif->ftm_unprotected);
if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
mvmvif == mvm->bf_allowed_vif)
MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir, 0600);
}
void iwl_mvm_vif_dbgfs_add_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
{
struct dentry *dbgfs_dir = vif->debugfs_dir;
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
char buf[3 * 3 + 11 + (NL80211_WIPHY_NAME_MAXLEN + 1) +
(7 + IFNAMSIZ + 1) + 6 + 1];
char name[7 + IFNAMSIZ + 1];
if (!dbgfs_dir)
return;
snprintf(name, sizeof(name), "%pd", dbgfs_dir);
snprintf(buf, sizeof(buf), "../../../%pd3/iwlmvm", dbgfs_dir);
mvmvif->dbgfs_slink =
debugfs_create_symlink(name, mvm->debugfs_dir, buf);
}
void iwl_mvm_vif_dbgfs_rm_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
debugfs_remove(mvmvif->dbgfs_slink);
mvmvif->dbgfs_slink = NULL;
}
#define MVM_DEBUGFS_WRITE_LINK_FILE_OPS(name, bufsz) \
_MVM_DEBUGFS_WRITE_FILE_OPS(link_##name, bufsz, \
struct ieee80211_bss_conf)
#define MVM_DEBUGFS_READ_WRITE_LINK_FILE_OPS(name, bufsz) \
_MVM_DEBUGFS_READ_WRITE_FILE_OPS(link_##name, bufsz, \
struct ieee80211_bss_conf)
#define MVM_DEBUGFS_ADD_LINK_FILE(name, parent, mode) \
debugfs_create_file(#name, mode, parent, link_conf, \
&iwl_dbgfs_link_##name##_ops)
static void iwl_mvm_debugfs_add_link_files(struct ieee80211_vif *vif,
struct ieee80211_bss_conf *link_conf,
struct dentry *mvm_dir)
{
}
void iwl_mvm_link_add_debugfs(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *link_conf,
struct dentry *dir)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = mvmvif->mvm;
unsigned int link_id = link_conf->link_id;
struct iwl_mvm_vif_link_info *link_info = mvmvif->link[link_id];
struct dentry *mvm_dir;
if (WARN_ON(!link_info) || !dir)
return;
if (dir == vif->debugfs_dir) {
WARN_ON(!mvmvif->dbgfs_dir);
mvm_dir = mvmvif->dbgfs_dir;
} else {
mvm_dir = debugfs_create_dir("iwlmvm", dir);
if (IS_ERR_OR_NULL(mvm_dir)) {
IWL_ERR(mvm, "Failed to create debugfs directory under %pd\n",
dir);
return;
}
}
iwl_mvm_debugfs_add_link_files(vif, link_conf, mvm_dir);
}
