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linux-zen-desktop/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c

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// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
* Copyright (C) 2012-2014, 2018-2023 Intel Corporation
* Copyright (C) 2013-2015 Intel Mobile Communications GmbH
* Copyright (C) 2016-2017 Intel Deutschland GmbH
*/
#include <linux/vmalloc.h>
#include <linux/err.h>
#include <linux/ieee80211.h>
#include <linux/netdevice.h>
#include <linux/dmi.h>
#include "mvm.h"
#include "sta.h"
#include "iwl-io.h"
#include "debugfs.h"
#include "iwl-modparams.h"
#include "iwl-drv.h"
#include "fw/error-dump.h"
#include "fw/api/phy-ctxt.h"
static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
char buf[16];
int pos, budget;
if (!iwl_mvm_is_ctdp_supported(mvm))
return -EOPNOTSUPP;
if (!iwl_mvm_firmware_running(mvm) ||
mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
return -EIO;
mutex_lock(&mvm->mutex);
budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0);
mutex_unlock(&mvm->mutex);
if (budget < 0)
return budget;
pos = scnprintf(buf, sizeof(buf), "%d\n", budget);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
int ret;
if (!iwl_mvm_is_ctdp_supported(mvm))
return -EOPNOTSUPP;
if (!iwl_mvm_firmware_running(mvm) ||
mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
return -EIO;
mutex_lock(&mvm->mutex);
ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0);
mutex_unlock(&mvm->mutex);
return ret ?: count;
}
static ssize_t iwl_dbgfs_force_ctkill_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
if (!iwl_mvm_firmware_running(mvm) ||
mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
return -EIO;
iwl_mvm_enter_ctkill(mvm);
return count;
}
static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
int ret;
u32 flush_arg;
if (!iwl_mvm_firmware_running(mvm) ||
mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
return -EIO;
if (kstrtou32(buf, 0, &flush_arg))
return -EINVAL;
if (iwl_mvm_has_new_tx_api(mvm)) {
IWL_DEBUG_TX_QUEUES(mvm,
"FLUSHING all tids queues on sta_id = %d\n",
flush_arg);
mutex_lock(&mvm->mutex);
ret = iwl_mvm_flush_sta_tids(mvm, flush_arg, 0xFFFF)
? : count;
mutex_unlock(&mvm->mutex);
return ret;
}
IWL_DEBUG_TX_QUEUES(mvm, "FLUSHING queues mask to flush = 0x%x\n",
flush_arg);
mutex_lock(&mvm->mutex);
ret = iwl_mvm_flush_tx_path(mvm, flush_arg) ? : count;
mutex_unlock(&mvm->mutex);
return ret;
}
static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm_sta *mvmsta;
int sta_id, drain, ret;
if (!iwl_mvm_firmware_running(mvm) ||
mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
return -EIO;
if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
return -EINVAL;
if (sta_id < 0 || sta_id >= mvm->fw->ucode_capa.num_stations)
return -EINVAL;
if (drain < 0 || drain > 1)
return -EINVAL;
mutex_lock(&mvm->mutex);
mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
if (!mvmsta)
ret = -ENOENT;
else
ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
mutex_unlock(&mvm->mutex);
return ret;
}
static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
const struct fw_img *img;
unsigned int ofs, len;
size_t ret;
u8 *ptr;
if (!iwl_mvm_firmware_running(mvm))
return -EINVAL;
/* default is to dump the entire data segment */
img = &mvm->fw->img[mvm->fwrt.cur_fw_img];
ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
len = img->sec[IWL_UCODE_SECTION_DATA].len;
if (mvm->dbgfs_sram_len) {
ofs = mvm->dbgfs_sram_offset;
len = mvm->dbgfs_sram_len;
}
ptr = kzalloc(len, GFP_KERNEL);
if (!ptr)
return -ENOMEM;
iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
kfree(ptr);
return ret;
}
static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
const struct fw_img *img;
u32 offset, len;
u32 img_offset, img_len;
if (!iwl_mvm_firmware_running(mvm))
return -EINVAL;
img = &mvm->fw->img[mvm->fwrt.cur_fw_img];
img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
if ((offset & 0x3) || (len & 0x3))
return -EINVAL;
if (offset + len > img_offset + img_len)
return -EINVAL;
mvm->dbgfs_sram_offset = offset;
mvm->dbgfs_sram_len = len;
} else {
mvm->dbgfs_sram_offset = 0;
mvm->dbgfs_sram_len = 0;
}
return count;
}
static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
char buf[16];
int pos;
if (!mvm->temperature_test)
pos = scnprintf(buf, sizeof(buf), "disabled\n");
else
pos = scnprintf(buf, sizeof(buf), "%d\n", mvm->temperature);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
/*
* Set NIC Temperature
* Cause the driver to ignore the actual NIC temperature reported by the FW
* Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -
* IWL_MVM_DEBUG_SET_TEMPERATURE_MAX
* Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE
*/
static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm,
char *buf, size_t count,
loff_t *ppos)
{
int temperature;
if (!iwl_mvm_firmware_running(mvm) && !mvm->temperature_test)
return -EIO;
if (kstrtoint(buf, 10, &temperature))
return -EINVAL;
/* not a legal temperature */
if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX &&
temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) ||
temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN)
return -EINVAL;
mutex_lock(&mvm->mutex);
if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) {
if (!mvm->temperature_test)
goto out;
mvm->temperature_test = false;
/* Since we can't read the temp while awake, just set
* it to zero until we get the next RX stats from the
* firmware.
*/
mvm->temperature = 0;
} else {
mvm->temperature_test = true;
mvm->temperature = temperature;
}
IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n",
mvm->temperature_test ? "En" : "Dis",
mvm->temperature);
/* handle the temperature change */
iwl_mvm_tt_handler(mvm);
out:
mutex_unlock(&mvm->mutex);
return count;
}
static ssize_t iwl_dbgfs_nic_temp_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
char buf[16];
int pos, ret;
s32 temp;
if (!iwl_mvm_firmware_running(mvm))
return -EIO;
mutex_lock(&mvm->mutex);
ret = iwl_mvm_get_temp(mvm, &temp);
mutex_unlock(&mvm->mutex);
if (ret)
return -EIO;
pos = scnprintf(buf, sizeof(buf), "%d\n", temp);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
#ifdef CONFIG_ACPI
static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
char buf[256];
int pos = 0;
int bufsz = sizeof(buf);
int tbl_idx;
if (!iwl_mvm_firmware_running(mvm))
return -EIO;
mutex_lock(&mvm->mutex);
tbl_idx = iwl_mvm_get_sar_geo_profile(mvm);
if (tbl_idx < 0) {
mutex_unlock(&mvm->mutex);
return tbl_idx;
}
if (!tbl_idx) {
pos = scnprintf(buf, bufsz,
"SAR geographic profile disabled\n");
} else {
pos += scnprintf(buf + pos, bufsz - pos,
"Use geographic profile %d\n", tbl_idx);
pos += scnprintf(buf + pos, bufsz - pos,
"2.4GHz:\n\tChain A offset: %u dBm\n\tChain B offset: %u dBm\n\tmax tx power: %u dBm\n",
mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[0],
mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[1],
mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].max);
pos += scnprintf(buf + pos, bufsz - pos,
"5.2GHz:\n\tChain A offset: %u dBm\n\tChain B offset: %u dBm\n\tmax tx power: %u dBm\n",
mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[0],
mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[1],
mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].max);
}
mutex_unlock(&mvm->mutex);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static ssize_t iwl_dbgfs_wifi_6e_enable_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
int err, pos;
char buf[12];
u32 value;
err = iwl_acpi_get_dsm_u32(mvm->fwrt.dev, 0,
DSM_FUNC_ENABLE_6E,
&iwl_guid, &value);
if (err)
return err;
pos = sprintf(buf, "0x%08x\n", value);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
#endif
static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
struct ieee80211_sta *sta;
char buf[400];
int i, pos = 0, bufsz = sizeof(buf);
mutex_lock(&mvm->mutex);
for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
lockdep_is_held(&mvm->mutex));
if (!sta)
pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
else if (IS_ERR(sta))
pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
PTR_ERR(sta));
else
pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
sta->addr);
}
mutex_unlock(&mvm->mutex);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static ssize_t iwl_dbgfs_rs_data_read(struct ieee80211_link_sta *link_sta,
struct iwl_mvm_sta *mvmsta,
struct iwl_mvm *mvm,
struct iwl_mvm_link_sta *mvm_link_sta,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_lq_sta_rs_fw *lq_sta = &mvm_link_sta->lq_sta.rs_fw;
static const size_t bufsz = 2048;
char *buff;
int desc = 0;
ssize_t ret;
buff = kmalloc(bufsz, GFP_KERNEL);
if (!buff)
return -ENOMEM;
desc += scnprintf(buff + desc, bufsz - desc, "sta_id %d\n",
lq_sta->pers.sta_id);
desc += scnprintf(buff + desc, bufsz - desc,
"fixed rate 0x%X\n",
lq_sta->pers.dbg_fixed_rate);
desc += scnprintf(buff + desc, bufsz - desc,
"A-MPDU size limit %d\n",
lq_sta->pers.dbg_agg_frame_count_lim);
desc += scnprintf(buff + desc, bufsz - desc,
"valid_tx_ant %s%s\n",
(iwl_mvm_get_valid_tx_ant(mvm) & ANT_A) ? "ANT_A," : "",
(iwl_mvm_get_valid_tx_ant(mvm) & ANT_B) ? "ANT_B," : "");
desc += scnprintf(buff + desc, bufsz - desc,
"last tx rate=0x%X ",
lq_sta->last_rate_n_flags);
desc += rs_pretty_print_rate(buff + desc, bufsz - desc,
lq_sta->last_rate_n_flags);
if (desc < bufsz - 1)
buff[desc++] = '\n';
ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
kfree(buff);
return ret;
}
static ssize_t iwl_dbgfs_amsdu_len_write(struct ieee80211_link_sta *link_sta,
struct iwl_mvm_sta *mvmsta,
struct iwl_mvm *mvm,
struct iwl_mvm_link_sta *mvm_link_sta,
char *buf, size_t count,
loff_t *ppos)
{
int i;
u16 amsdu_len;
if (kstrtou16(buf, 0, &amsdu_len))
return -EINVAL;
/* only change from debug set <-> debug unset */
if (amsdu_len && mvm_link_sta->orig_amsdu_len)
return -EBUSY;
if (amsdu_len) {
mvm_link_sta->orig_amsdu_len = link_sta->agg.max_amsdu_len;
link_sta->agg.max_amsdu_len = amsdu_len;
link_sta->agg.max_amsdu_len = amsdu_len;
for (i = 0; i < ARRAY_SIZE(link_sta->agg.max_tid_amsdu_len); i++)
link_sta->agg.max_tid_amsdu_len[i] = amsdu_len;
} else {
link_sta->agg.max_amsdu_len = mvm_link_sta->orig_amsdu_len;
mvm_link_sta->orig_amsdu_len = 0;
}
ieee80211_sta_recalc_aggregates(link_sta->sta);
return count;
}
static ssize_t iwl_dbgfs_amsdu_len_read(struct ieee80211_link_sta *link_sta,
struct iwl_mvm_sta *mvmsta,
struct iwl_mvm *mvm,
struct iwl_mvm_link_sta *mvm_link_sta,
char __user *user_buf,
size_t count, loff_t *ppos)
{
char buf[32];
int pos;
pos = scnprintf(buf, sizeof(buf), "current %d ",
link_sta->agg.max_amsdu_len);
pos += scnprintf(buf + pos, sizeof(buf) - pos, "stored %d\n",
mvm_link_sta->orig_amsdu_len);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
char buf[64];
int bufsz = sizeof(buf);
int pos = 0;
pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
mvm->disable_power_off);
pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
mvm->disable_power_off_d3);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
int ret, val;
if (!iwl_mvm_firmware_running(mvm))
return -EIO;
if (!strncmp("disable_power_off_d0=", buf, 21)) {
if (sscanf(buf + 21, "%d", &val) != 1)
return -EINVAL;
mvm->disable_power_off = val;
} else if (!strncmp("disable_power_off_d3=", buf, 21)) {
if (sscanf(buf + 21, "%d", &val) != 1)
return -EINVAL;
mvm->disable_power_off_d3 = val;
} else {
return -EINVAL;
}
mutex_lock(&mvm->mutex);
ret = iwl_mvm_power_update_device(mvm);
mutex_unlock(&mvm->mutex);
return ret ?: count;
}
static
int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf,
int pos, int bufsz)
{
pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
BT_MBOX_PRINT(0, LE_PROF1, false);
BT_MBOX_PRINT(0, LE_PROF2, false);
BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
BT_MBOX_PRINT(0, CHL_SEQ_N, false);
BT_MBOX_PRINT(0, INBAND_S, false);
BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
BT_MBOX_PRINT(0, LE_SCAN, false);
BT_MBOX_PRINT(0, LE_ADV, false);
BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
BT_MBOX_PRINT(0, OPEN_CON_1, true);
pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
BT_MBOX_PRINT(1, IP_SR, false);
BT_MBOX_PRINT(1, LE_MSTR, false);
BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
BT_MBOX_PRINT(1, MSG_TYPE, false);
BT_MBOX_PRINT(1, SSN, true);
pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
BT_MBOX_PRINT(2, SNIFF_ACT, false);
BT_MBOX_PRINT(2, PAG, false);
BT_MBOX_PRINT(2, INQUIRY, false);
BT_MBOX_PRINT(2, CONN, false);
BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
BT_MBOX_PRINT(2, DISC, false);
BT_MBOX_PRINT(2, SCO_TX_ACT, false);
BT_MBOX_PRINT(2, SCO_RX_ACT, false);
BT_MBOX_PRINT(2, ESCO_RE_TX, false);
BT_MBOX_PRINT(2, SCO_DURATION, true);
pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
BT_MBOX_PRINT(3, SCO_STATE, false);
BT_MBOX_PRINT(3, SNIFF_STATE, false);
BT_MBOX_PRINT(3, A2DP_STATE, false);
BT_MBOX_PRINT(3, A2DP_SRC, false);
BT_MBOX_PRINT(3, ACL_STATE, false);
BT_MBOX_PRINT(3, MSTR_STATE, false);
BT_MBOX_PRINT(3, OBX_STATE, false);
BT_MBOX_PRINT(3, OPEN_CON_2, false);
BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
BT_MBOX_PRINT(3, INBAND_P, false);
BT_MBOX_PRINT(3, MSG_TYPE_2, false);
BT_MBOX_PRINT(3, SSN_2, false);
BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
return pos;
}
static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
char *buf;
int ret, pos = 0, bufsz = sizeof(char) * 1024;
buf = kmalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
mutex_lock(&mvm->mutex);
pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz);
pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n",
notif->bt_ci_compliance);
pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n",
le32_to_cpu(notif->primary_ch_lut));
pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n",
le32_to_cpu(notif->secondary_ch_lut));
pos += scnprintf(buf + pos,
bufsz - pos, "bt_activity_grading = %d\n",
le32_to_cpu(notif->bt_activity_grading));
pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n",
notif->rrc_status & 0xF);
pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n",
notif->ttc_status & 0xF);
pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n",
IWL_MVM_BT_COEX_SYNC2SCO);
pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n",
IWL_MVM_BT_COEX_MPLUT);
mutex_unlock(&mvm->mutex);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
#undef BT_MBOX_PRINT
static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
char buf[256];
int bufsz = sizeof(buf);
int pos = 0;
mutex_lock(&mvm->mutex);
pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n");
pos += scnprintf(buf + pos, bufsz - pos,
"\tPrimary Channel Bitmap 0x%016llx\n",
le64_to_cpu(cmd->bt_primary_ci));
pos += scnprintf(buf + pos, bufsz - pos,
"\tSecondary Channel Bitmap 0x%016llx\n",
le64_to_cpu(cmd->bt_secondary_ci));
mutex_unlock(&mvm->mutex);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static ssize_t
iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
u32 bt_tx_prio;
if (sscanf(buf, "%u", &bt_tx_prio) != 1)
return -EINVAL;
if (bt_tx_prio > 4)
return -EINVAL;
mvm->bt_tx_prio = bt_tx_prio;
return count;
}
static ssize_t
iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
static const char * const modes_str[BT_FORCE_ANT_MAX] = {
[BT_FORCE_ANT_DIS] = "dis",
[BT_FORCE_ANT_AUTO] = "auto",
[BT_FORCE_ANT_BT] = "bt",
[BT_FORCE_ANT_WIFI] = "wifi",
};
int ret, bt_force_ant_mode;
ret = match_string(modes_str, ARRAY_SIZE(modes_str), buf);
if (ret < 0)
return ret;
bt_force_ant_mode = ret;
ret = 0;
mutex_lock(&mvm->mutex);
if (mvm->bt_force_ant_mode == bt_force_ant_mode)
goto out;
mvm->bt_force_ant_mode = bt_force_ant_mode;
IWL_DEBUG_COEX(mvm, "Force mode: %s\n",
modes_str[mvm->bt_force_ant_mode]);
if (iwl_mvm_firmware_running(mvm))
ret = iwl_mvm_send_bt_init_conf(mvm);
else
ret = 0;
out:
mutex_unlock(&mvm->mutex);
return ret ?: count;
}
static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
char *buff, *pos, *endpos;
static const size_t bufsz = 1024;
char _fw_name_pre[FW_NAME_PRE_BUFSIZE];
int ret;
buff = kmalloc(bufsz, GFP_KERNEL);
if (!buff)
return -ENOMEM;
pos = buff;
endpos = pos + bufsz;
pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n",
iwl_drv_get_fwname_pre(mvm->trans, _fw_name_pre));
pos += scnprintf(pos, endpos - pos, "FW: %s\n",
mvm->fwrt.fw->human_readable);
pos += scnprintf(pos, endpos - pos, "Device: %s\n",
mvm->fwrt.trans->name);
pos += scnprintf(pos, endpos - pos, "Bus: %s\n",
mvm->fwrt.dev->bus->name);
ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
kfree(buff);
return ret;
}
static ssize_t iwl_dbgfs_tas_get_status_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
struct iwl_mvm_tas_status_resp tas_rsp;
struct iwl_mvm_tas_status_resp *rsp = &tas_rsp;
static const size_t bufsz = 1024;
char *buff, *pos, *endpos;
const char * const tas_dis_reason[TAS_DISABLED_REASON_MAX] = {
[TAS_DISABLED_DUE_TO_BIOS] =
"Due To BIOS",
[TAS_DISABLED_DUE_TO_SAR_6DBM] =
"Due To SAR Limit Less Than 6 dBm",
[TAS_DISABLED_REASON_INVALID] =
"N/A",
};
const char * const tas_current_status[TAS_DYNA_STATUS_MAX] = {
[TAS_DYNA_INACTIVE] = "INACTIVE",
[TAS_DYNA_INACTIVE_MVM_MODE] =
"inactive due to mvm mode",
[TAS_DYNA_INACTIVE_TRIGGER_MODE] =
"inactive due to trigger mode",
[TAS_DYNA_INACTIVE_BLOCK_LISTED] =
"inactive due to block listed",
[TAS_DYNA_INACTIVE_UHB_NON_US] =
"inactive due to uhb non US",
[TAS_DYNA_ACTIVE] = "ACTIVE",
};
struct iwl_host_cmd hcmd = {
.id = WIDE_ID(DEBUG_GROUP, GET_TAS_STATUS),
.flags = CMD_WANT_SKB,
.len = { 0, },
.data = { NULL, },
};
int ret, i, tmp;
bool tas_enabled = false;
unsigned long dyn_status;
if (!iwl_mvm_firmware_running(mvm))
return -ENODEV;
mutex_lock(&mvm->mutex);
ret = iwl_mvm_send_cmd(mvm, &hcmd);
mutex_unlock(&mvm->mutex);
if (ret < 0)
return ret;
buff = kzalloc(bufsz, GFP_KERNEL);
if (!buff)
return -ENOMEM;
pos = buff;
endpos = pos + bufsz;
rsp = (void *)hcmd.resp_pkt->data;
pos += scnprintf(pos, endpos - pos, "TAS Conclusion:\n");
for (i = 0; i < rsp->in_dual_radio + 1; i++) {
if (rsp->tas_status_mac[i].band != TAS_LMAC_BAND_INVALID &&
rsp->tas_status_mac[i].dynamic_status & BIT(TAS_DYNA_ACTIVE)) {
pos += scnprintf(pos, endpos - pos, "\tON for ");
switch (rsp->tas_status_mac[i].band) {
case TAS_LMAC_BAND_HB:
pos += scnprintf(pos, endpos - pos, "HB\n");
break;
case TAS_LMAC_BAND_LB:
pos += scnprintf(pos, endpos - pos, "LB\n");
break;
case TAS_LMAC_BAND_UHB:
pos += scnprintf(pos, endpos - pos, "UHB\n");
break;
case TAS_LMAC_BAND_INVALID:
pos += scnprintf(pos, endpos - pos,
"INVALID BAND\n");
break;
default:
pos += scnprintf(pos, endpos - pos,
"Unsupported band (%d)\n",
rsp->tas_status_mac[i].band);
goto out;
}
tas_enabled = true;
}
}
if (!tas_enabled)
pos += scnprintf(pos, endpos - pos, "\tOFF\n");
pos += scnprintf(pos, endpos - pos, "TAS Report\n");
pos += scnprintf(pos, endpos - pos, "TAS FW version: %d\n",
rsp->tas_fw_version);
pos += scnprintf(pos, endpos - pos, "Is UHB enabled for USA?: %s\n",
rsp->is_uhb_for_usa_enable ? "True" : "False");
pos += scnprintf(pos, endpos - pos, "Current MCC: 0x%x\n",
le16_to_cpu(rsp->curr_mcc));
pos += scnprintf(pos, endpos - pos, "Block list entries:");
for (i = 0; i < APCI_WTAS_BLACK_LIST_MAX; i++)
pos += scnprintf(pos, endpos - pos, " 0x%x",
le16_to_cpu(rsp->block_list[i]));
pos += scnprintf(pos, endpos - pos, "\nOEM name: %s\n",
dmi_get_system_info(DMI_SYS_VENDOR));
pos += scnprintf(pos, endpos - pos, "\tVendor In Approved List: %s\n",
iwl_mvm_is_vendor_in_approved_list() ? "YES" : "NO");
pos += scnprintf(pos, endpos - pos,
"\tDo TAS Support Dual Radio?: %s\n",
rsp->in_dual_radio ? "TRUE" : "FALSE");
for (i = 0; i < rsp->in_dual_radio + 1; i++) {
if (rsp->tas_status_mac[i].static_status == 0) {
pos += scnprintf(pos, endpos - pos,
"Static status: disabled\n");
pos += scnprintf(pos, endpos - pos,
"Static disabled reason: %s (0)\n",
tas_dis_reason[0]);
goto out;
}
pos += scnprintf(pos, endpos - pos, "TAS status for ");
switch (rsp->tas_status_mac[i].band) {
case TAS_LMAC_BAND_HB:
pos += scnprintf(pos, endpos - pos, "High band\n");
break;
case TAS_LMAC_BAND_LB:
pos += scnprintf(pos, endpos - pos, "Low band\n");
break;
case TAS_LMAC_BAND_UHB:
pos += scnprintf(pos, endpos - pos,
"Ultra high band\n");
break;
case TAS_LMAC_BAND_INVALID:
pos += scnprintf(pos, endpos - pos,
"INVALID band\n");
break;
default:
pos += scnprintf(pos, endpos - pos,
"Unsupported band (%d)\n",
rsp->tas_status_mac[i].band);
goto out;
}
pos += scnprintf(pos, endpos - pos, "Static status: %sabled\n",
rsp->tas_status_mac[i].static_status ?
"En" : "Dis");
pos += scnprintf(pos, endpos - pos,
"\tStatic Disabled Reason: ");
if (rsp->tas_status_mac[i].static_dis_reason < TAS_DISABLED_REASON_MAX)
pos += scnprintf(pos, endpos - pos, "%s (%d)\n",
tas_dis_reason[rsp->tas_status_mac[i].static_dis_reason],
rsp->tas_status_mac[i].static_dis_reason);
else
pos += scnprintf(pos, endpos - pos,
"unsupported value (%d)\n",
rsp->tas_status_mac[i].static_dis_reason);
pos += scnprintf(pos, endpos - pos, "Dynamic status:\n");
dyn_status = (rsp->tas_status_mac[i].dynamic_status);
for_each_set_bit(tmp, &dyn_status, sizeof(dyn_status)) {
if (tmp >= 0 && tmp < TAS_DYNA_STATUS_MAX)
pos += scnprintf(pos, endpos - pos,
"\t%s (%d)\n",
tas_current_status[tmp], tmp);
}
pos += scnprintf(pos, endpos - pos,
"Is near disconnection?: %s\n",
rsp->tas_status_mac[i].near_disconnection ?
"True" : "False");
tmp = le16_to_cpu(rsp->tas_status_mac[i].max_reg_pwr_limit);
pos += scnprintf(pos, endpos - pos,
"Max. regulatory pwr limit (dBm): %d.%03d\n",
tmp / 8, 125 * (tmp % 8));
tmp = le16_to_cpu(rsp->tas_status_mac[i].sar_limit);
pos += scnprintf(pos, endpos - pos,
"SAR limit (dBm): %d.%03d\n",
tmp / 8, 125 * (tmp % 8));
}
out:
ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
kfree(buff);
iwl_free_resp(&hcmd);
return ret;
}
static ssize_t iwl_dbgfs_phy_integration_ver_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
char *buf;
size_t bufsz;
int pos;
ssize_t ret;
bufsz = mvm->fw->phy_integration_ver_len + 2;
buf = kmalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
pos = scnprintf(buf, bufsz, "%.*s\n", mvm->fw->phy_integration_ver_len,
mvm->fw->phy_integration_ver);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
#define PRINT_STATS_LE32(_struct, _memb) \
pos += scnprintf(buf + pos, bufsz - pos, \
fmt_table, #_memb, \
le32_to_cpu(_struct->_memb))
static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
char __user *user_buf, size_t count,
loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
static const char *fmt_table = "\t%-30s %10u\n";
static const char *fmt_header = "%-32s\n";
int pos = 0;
char *buf;
int ret;
size_t bufsz;
if (iwl_mvm_has_new_rx_stats_api(mvm))
bufsz = ((sizeof(struct mvm_statistics_rx) /
sizeof(__le32)) * 43) + (4 * 33) + 1;
else
/* 43 = size of each data line; 33 = size of each header */
bufsz = ((sizeof(struct mvm_statistics_rx_v3) /
sizeof(__le32)) * 43) + (4 * 33) + 1;
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
mutex_lock(&mvm->mutex);
if (iwl_mvm_firmware_running(mvm))
iwl_mvm_request_statistics(mvm, false);
pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
"Statistics_Rx - OFDM");
if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm;
PRINT_STATS_LE32(ofdm, ina_cnt);
PRINT_STATS_LE32(ofdm, fina_cnt);
PRINT_STATS_LE32(ofdm, plcp_err);
PRINT_STATS_LE32(ofdm, crc32_err);
PRINT_STATS_LE32(ofdm, overrun_err);
PRINT_STATS_LE32(ofdm, early_overrun_err);
PRINT_STATS_LE32(ofdm, crc32_good);
PRINT_STATS_LE32(ofdm, false_alarm_cnt);
PRINT_STATS_LE32(ofdm, fina_sync_err_cnt);
PRINT_STATS_LE32(ofdm, sfd_timeout);
PRINT_STATS_LE32(ofdm, fina_timeout);
PRINT_STATS_LE32(ofdm, unresponded_rts);
PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
PRINT_STATS_LE32(ofdm, sent_ack_cnt);
PRINT_STATS_LE32(ofdm, sent_cts_cnt);
PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
PRINT_STATS_LE32(ofdm, dsp_self_kill);
PRINT_STATS_LE32(ofdm, mh_format_err);
PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum);
PRINT_STATS_LE32(ofdm, reserved);
} else {
struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm;
PRINT_STATS_LE32(ofdm, unresponded_rts);
PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
PRINT_STATS_LE32(ofdm, dsp_self_kill);
PRINT_STATS_LE32(ofdm, reserved);
}
pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
"Statistics_Rx - CCK");
if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck;
PRINT_STATS_LE32(cck, ina_cnt);
PRINT_STATS_LE32(cck, fina_cnt);
PRINT_STATS_LE32(cck, plcp_err);
PRINT_STATS_LE32(cck, crc32_err);
PRINT_STATS_LE32(cck, overrun_err);
PRINT_STATS_LE32(cck, early_overrun_err);
PRINT_STATS_LE32(cck, crc32_good);
PRINT_STATS_LE32(cck, false_alarm_cnt);
PRINT_STATS_LE32(cck, fina_sync_err_cnt);
PRINT_STATS_LE32(cck, sfd_timeout);
PRINT_STATS_LE32(cck, fina_timeout);
PRINT_STATS_LE32(cck, unresponded_rts);
PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
PRINT_STATS_LE32(cck, sent_ack_cnt);
PRINT_STATS_LE32(cck, sent_cts_cnt);
PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
PRINT_STATS_LE32(cck, dsp_self_kill);
PRINT_STATS_LE32(cck, mh_format_err);
PRINT_STATS_LE32(cck, re_acq_main_rssi_sum);
PRINT_STATS_LE32(cck, reserved);
} else {
struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck;
PRINT_STATS_LE32(cck, unresponded_rts);
PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
PRINT_STATS_LE32(cck, dsp_self_kill);
PRINT_STATS_LE32(cck, reserved);
}
pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
"Statistics_Rx - GENERAL");
if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
struct mvm_statistics_rx_non_phy_v3 *general =
&mvm->rx_stats_v3.general;
PRINT_STATS_LE32(general, bogus_cts);
PRINT_STATS_LE32(general, bogus_ack);
PRINT_STATS_LE32(general, non_bssid_frames);
PRINT_STATS_LE32(general, filtered_frames);
PRINT_STATS_LE32(general, non_channel_beacons);
PRINT_STATS_LE32(general, channel_beacons);
PRINT_STATS_LE32(general, num_missed_bcon);
PRINT_STATS_LE32(general, adc_rx_saturation_time);
PRINT_STATS_LE32(general, ina_detection_search_time);
PRINT_STATS_LE32(general, beacon_silence_rssi_a);
PRINT_STATS_LE32(general, beacon_silence_rssi_b);
PRINT_STATS_LE32(general, beacon_silence_rssi_c);
PRINT_STATS_LE32(general, interference_data_flag);
PRINT_STATS_LE32(general, channel_load);
PRINT_STATS_LE32(general, dsp_false_alarms);
PRINT_STATS_LE32(general, beacon_rssi_a);
PRINT_STATS_LE32(general, beacon_rssi_b);
PRINT_STATS_LE32(general, beacon_rssi_c);
PRINT_STATS_LE32(general, beacon_energy_a);
PRINT_STATS_LE32(general, beacon_energy_b);
PRINT_STATS_LE32(general, beacon_energy_c);
PRINT_STATS_LE32(general, num_bt_kills);
PRINT_STATS_LE32(general, mac_id);
PRINT_STATS_LE32(general, directed_data_mpdu);
} else {
struct mvm_statistics_rx_non_phy *general =
&mvm->rx_stats.general;
PRINT_STATS_LE32(general, bogus_cts);
PRINT_STATS_LE32(general, bogus_ack);
PRINT_STATS_LE32(general, non_channel_beacons);
PRINT_STATS_LE32(general, channel_beacons);
PRINT_STATS_LE32(general, num_missed_bcon);
PRINT_STATS_LE32(general, adc_rx_saturation_time);
PRINT_STATS_LE32(general, ina_detection_search_time);
PRINT_STATS_LE32(general, beacon_silence_rssi_a);
PRINT_STATS_LE32(general, beacon_silence_rssi_b);
PRINT_STATS_LE32(general, beacon_silence_rssi_c);
PRINT_STATS_LE32(general, interference_data_flag);
PRINT_STATS_LE32(general, channel_load);
PRINT_STATS_LE32(general, beacon_rssi_a);
PRINT_STATS_LE32(general, beacon_rssi_b);
PRINT_STATS_LE32(general, beacon_rssi_c);
PRINT_STATS_LE32(general, beacon_energy_a);
PRINT_STATS_LE32(general, beacon_energy_b);
PRINT_STATS_LE32(general, beacon_energy_c);
PRINT_STATS_LE32(general, num_bt_kills);
PRINT_STATS_LE32(general, mac_id);
}
pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
"Statistics_Rx - HT");
if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
struct mvm_statistics_rx_ht_phy_v1 *ht =
&mvm->rx_stats_v3.ofdm_ht;
PRINT_STATS_LE32(ht, plcp_err);
PRINT_STATS_LE32(ht, overrun_err);
PRINT_STATS_LE32(ht, early_overrun_err);
PRINT_STATS_LE32(ht, crc32_good);
PRINT_STATS_LE32(ht, crc32_err);
PRINT_STATS_LE32(ht, mh_format_err);
PRINT_STATS_LE32(ht, agg_crc32_good);
PRINT_STATS_LE32(ht, agg_mpdu_cnt);
PRINT_STATS_LE32(ht, agg_cnt);
PRINT_STATS_LE32(ht, unsupport_mcs);
} else {
struct mvm_statistics_rx_ht_phy *ht =
&mvm->rx_stats.ofdm_ht;
PRINT_STATS_LE32(ht, mh_format_err);
PRINT_STATS_LE32(ht, agg_mpdu_cnt);
PRINT_STATS_LE32(ht, agg_cnt);
PRINT_STATS_LE32(ht, unsupport_mcs);
}
mutex_unlock(&mvm->mutex);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
#undef PRINT_STAT_LE32
static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
char __user *user_buf, size_t count,
loff_t *ppos,
struct iwl_mvm_frame_stats *stats)
{
char *buff, *pos, *endpos;
int idx, i;
int ret;
static const size_t bufsz = 1024;
buff = kmalloc(bufsz, GFP_KERNEL);
if (!buff)
return -ENOMEM;
spin_lock_bh(&mvm->drv_stats_lock);
pos = buff;
endpos = pos + bufsz;
pos += scnprintf(pos, endpos - pos,
"Legacy/HT/VHT\t:\t%d/%d/%d\n",
stats->legacy_frames,
stats->ht_frames,
stats->vht_frames);
pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
stats->bw_20_frames,
stats->bw_40_frames,
stats->bw_80_frames);
pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
stats->ngi_frames,
stats->sgi_frames);
pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
stats->siso_frames,
stats->mimo2_frames);
pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
stats->fail_frames,
stats->success_frames);
pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
stats->agg_frames);
pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
stats->ampdu_count);
pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
stats->ampdu_count > 0 ?
(stats->agg_frames / stats->ampdu_count) : 0);
pos += scnprintf(pos, endpos - pos, "Last Rates\n");
idx = stats->last_frame_idx - 1;
for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
if (stats->last_rates[idx] == 0)
continue;
pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
(int)(ARRAY_SIZE(stats->last_rates) - i));
pos += rs_pretty_print_rate_v1(pos, endpos - pos,
stats->last_rates[idx]);
if (pos < endpos - 1)
*pos++ = '\n';
}
spin_unlock_bh(&mvm->drv_stats_lock);
ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
kfree(buff);
return ret;
}
static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
char __user *user_buf, size_t count,
loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
&mvm->drv_rx_stats);
}
static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
int __maybe_unused ret;
if (!iwl_mvm_firmware_running(mvm))
return -EIO;
mutex_lock(&mvm->mutex);
/* allow one more restart that we're provoking here */
if (mvm->fw_restart >= 0)
mvm->fw_restart++;
if (count == 6 && !strcmp(buf, "nolog\n")) {
set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status);
set_bit(STATUS_SUPPRESS_CMD_ERROR_ONCE, &mvm->trans->status);
}
/* take the return value to make compiler happy - it will fail anyway */
ret = iwl_mvm_send_cmd_pdu(mvm,
WIDE_ID(LONG_GROUP, REPLY_ERROR),
0, 0, NULL);
mutex_unlock(&mvm->mutex);
return count;
}
static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
if (!iwl_mvm_firmware_running(mvm))
return -EIO;
if (count == 6 && !strcmp(buf, "nolog\n"))
set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status);
iwl_force_nmi(mvm->trans);
return count;
}
static ssize_t
iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
int pos = 0;
char buf[32];
const size_t bufsz = sizeof(buf);
/* print which antennas were set for the scan command by the user */
pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
if (mvm->scan_rx_ant & ANT_A)
pos += scnprintf(buf + pos, bufsz - pos, "A");
if (mvm->scan_rx_ant & ANT_B)
pos += scnprintf(buf + pos, bufsz - pos, "B");
pos += scnprintf(buf + pos, bufsz - pos, " (%x)\n", mvm->scan_rx_ant);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static ssize_t
iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
u8 scan_rx_ant;
if (!iwl_mvm_firmware_running(mvm))
return -EIO;
if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
return -EINVAL;
if (scan_rx_ant > ANT_ABC)
return -EINVAL;
if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm)))
return -EINVAL;
if (mvm->scan_rx_ant != scan_rx_ant) {
mvm->scan_rx_ant = scan_rx_ant;
if (fw_has_capa(&mvm->fw->ucode_capa,
IWL_UCODE_TLV_CAPA_UMAC_SCAN))
iwl_mvm_config_scan(mvm);
}
return count;
}
static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm,
char *buf, size_t count,
loff_t *ppos)
{
struct iwl_rss_config_cmd cmd = {
.flags = cpu_to_le32(IWL_RSS_ENABLE),
.hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP |
IWL_RSS_HASH_TYPE_IPV4_UDP |
IWL_RSS_HASH_TYPE_IPV4_PAYLOAD |
IWL_RSS_HASH_TYPE_IPV6_TCP |
IWL_RSS_HASH_TYPE_IPV6_UDP |
IWL_RSS_HASH_TYPE_IPV6_PAYLOAD,
};
int ret, i, num_repeats, nbytes = count / 2;
ret = hex2bin(cmd.indirection_table, buf, nbytes);
if (ret)
return ret;
/*
* The input is the redirection table, partial or full.
* Repeat the pattern if needed.
* For example, input of 01020F will be repeated 42 times,
* indirecting RSS hash results to queues 1, 2, 15 (skipping
* queues 3 - 14).
*/
num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes;
for (i = 1; i < num_repeats; i++)
memcpy(&cmd.indirection_table[i * nbytes],
cmd.indirection_table, nbytes);
/* handle cut in the middle pattern for the last places */
memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table,
ARRAY_SIZE(cmd.indirection_table) % nbytes);
netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key));
mutex_lock(&mvm->mutex);
if (iwl_mvm_firmware_running(mvm))
ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0,
sizeof(cmd), &cmd);
else
ret = 0;
mutex_unlock(&mvm->mutex);
return ret ?: count;
}
static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm,
char *buf, size_t count,
loff_t *ppos)
{
struct iwl_op_mode *opmode = container_of((void *)mvm,
struct iwl_op_mode,
op_mode_specific);
struct iwl_rx_cmd_buffer rxb = {
._rx_page_order = 0,
.truesize = 0, /* not used */
._offset = 0,
};
struct iwl_rx_packet *pkt;
int bin_len = count / 2;
int ret = -EINVAL;
if (!iwl_mvm_firmware_running(mvm))
return -EIO;
/* supporting only MQ RX */
if (!mvm->trans->trans_cfg->mq_rx_supported)
return -ENOTSUPP;
rxb._page = alloc_pages(GFP_ATOMIC, 0);
if (!rxb._page)
return -ENOMEM;
pkt = rxb_addr(&rxb);
ret = hex2bin(page_address(rxb._page), buf, bin_len);
if (ret)
goto out;
/* avoid invalid memory access and malformed packet */
if (bin_len < sizeof(*pkt) ||
bin_len != sizeof(*pkt) + iwl_rx_packet_payload_len(pkt))
goto out;
local_bh_disable();
iwl_mvm_rx_mq(opmode, NULL, &rxb);
local_bh_enable();
ret = 0;
out:
iwl_free_rxb(&rxb);
return ret ?: count;
}
static int _iwl_dbgfs_inject_beacon_ie(struct iwl_mvm *mvm, char *bin, int len)
{
struct ieee80211_vif *vif;
struct iwl_mvm_vif *mvmvif;
struct sk_buff *beacon;
struct ieee80211_tx_info *info;
struct iwl_mac_beacon_cmd beacon_cmd = {};
unsigned int link_id;
u8 rate;
int i;
len /= 2;
/* Element len should be represented by u8 */
if (len >= U8_MAX)
return -EINVAL;
if (!iwl_mvm_firmware_running(mvm))
return -EIO;
if (!iwl_mvm_has_new_tx_api(mvm) &&
!fw_has_api(&mvm->fw->ucode_capa,
IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE))
return -EINVAL;
mutex_lock(&mvm->mutex);
for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) {
vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false);
if (!vif)
continue;
if (vif->type == NL80211_IFTYPE_AP)
break;
}
if (i == NUM_MAC_INDEX_DRIVER || !vif)
goto out_err;
mvm->hw->extra_beacon_tailroom = len;
beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL, 0);
if (!beacon)
goto out_err;
if (len && hex2bin(skb_put_zero(beacon, len), bin, len)) {
dev_kfree_skb(beacon);
goto out_err;
}
mvm->beacon_inject_active = true;
mvmvif = iwl_mvm_vif_from_mac80211(vif);
info = IEEE80211_SKB_CB(beacon);
rate = iwl_mvm_mac_ctxt_get_beacon_rate(mvm, info, vif);
for_each_mvm_vif_valid_link(mvmvif, link_id) {
beacon_cmd.flags =
cpu_to_le16(iwl_mvm_mac_ctxt_get_beacon_flags(mvm->fw,
rate));
beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len);
if (iwl_fw_lookup_cmd_ver(mvm->fw, BEACON_TEMPLATE_CMD, 0) > 12)
beacon_cmd.link_id =
cpu_to_le32(mvmvif->link[link_id]->fw_link_id);
else
beacon_cmd.link_id = cpu_to_le32((u32)mvmvif->id);
iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx,
&beacon_cmd.tim_size,
beacon->data, beacon->len);
iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd,
sizeof(beacon_cmd));
}
mutex_unlock(&mvm->mutex);
dev_kfree_skb(beacon);
return 0;
out_err:
mutex_unlock(&mvm->mutex);
return -EINVAL;
}
static ssize_t iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm *mvm,
char *buf, size_t count,
loff_t *ppos)
{
int ret = _iwl_dbgfs_inject_beacon_ie(mvm, buf, count);
mvm->hw->extra_beacon_tailroom = 0;
return ret ?: count;
}
static ssize_t iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm *mvm,
char *buf,
size_t count,
loff_t *ppos)
{
int ret = _iwl_dbgfs_inject_beacon_ie(mvm, NULL, 0);
mvm->hw->extra_beacon_tailroom = 0;
mvm->beacon_inject_active = false;
return ret ?: count;
}
static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
int conf;
char buf[8];
const size_t bufsz = sizeof(buf);
int pos = 0;
mutex_lock(&mvm->mutex);
conf = mvm->fwrt.dump.conf;
mutex_unlock(&mvm->mutex);
pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm,
char *buf, size_t count,
loff_t *ppos)
{
unsigned int conf_id;
int ret;
if (!iwl_mvm_firmware_running(mvm))
return -EIO;
ret = kstrtouint(buf, 0, &conf_id);
if (ret)
return ret;
if (WARN_ON(conf_id >= FW_DBG_CONF_MAX))
return -EINVAL;
mutex_lock(&mvm->mutex);
ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id);
mutex_unlock(&mvm->mutex);
return ret ?: count;
}
static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
char *buf, size_t count,
loff_t *ppos)
{
if (count == 0)
return 0;
iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_USER_TRIGGER,
NULL);
iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf,
(count - 1), NULL);
return count;
}
static ssize_t iwl_dbgfs_dbg_time_point_write(struct iwl_mvm *mvm,
char *buf, size_t count,
loff_t *ppos)
{
u32 timepoint;
if (kstrtou32(buf, 0, &timepoint))
return -EINVAL;
if (timepoint == IWL_FW_INI_TIME_POINT_INVALID ||
timepoint >= IWL_FW_INI_TIME_POINT_NUM)
return -EINVAL;
iwl_dbg_tlv_time_point(&mvm->fwrt, timepoint, NULL);
return count;
}
#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
_MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
_MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
#define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \
debugfs_create_file(alias, mode, parent, mvm, \
&iwl_dbgfs_##name##_ops); \
} while (0)
#define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
static ssize_t
_iwl_dbgfs_link_sta_wrap_write(ssize_t (*real)(struct ieee80211_link_sta *,
struct iwl_mvm_sta *,
struct iwl_mvm *,
struct iwl_mvm_link_sta *,
char *,
size_t, loff_t *),
struct file *file,
char *buf, size_t buf_size, loff_t *ppos)
{
struct ieee80211_link_sta *link_sta = file->private_data;
struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(link_sta->sta);
struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(mvmsta->vif)->mvm;
struct iwl_mvm_link_sta *mvm_link_sta;
ssize_t ret;
mutex_lock(&mvm->mutex);
mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_sta->link_id],
lockdep_is_held(&mvm->mutex));
if (WARN_ON(!mvm_link_sta)) {
mutex_unlock(&mvm->mutex);
return -ENODEV;
}
ret = real(link_sta, mvmsta, mvm, mvm_link_sta, buf, buf_size, ppos);
mutex_unlock(&mvm->mutex);
return ret;
}
static ssize_t
_iwl_dbgfs_link_sta_wrap_read(ssize_t (*real)(struct ieee80211_link_sta *,
struct iwl_mvm_sta *,
struct iwl_mvm *,
struct iwl_mvm_link_sta *,
char __user *,
size_t, loff_t *),
struct file *file,
char __user *user_buf, size_t count, loff_t *ppos)
{
struct ieee80211_link_sta *link_sta = file->private_data;
struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(link_sta->sta);
struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(mvmsta->vif)->mvm;
struct iwl_mvm_link_sta *mvm_link_sta;
ssize_t ret;
mutex_lock(&mvm->mutex);
mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_sta->link_id],
lockdep_is_held(&mvm->mutex));
if (WARN_ON(!mvm_link_sta)) {
mutex_unlock(&mvm->mutex);
return -ENODEV;
}
ret = real(link_sta, mvmsta, mvm, mvm_link_sta, user_buf, count, ppos);
mutex_unlock(&mvm->mutex);
return ret;
}
#define MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, buflen) \
static ssize_t _iwl_dbgfs_link_sta_##name##_write(struct file *file, \
const char __user *user_buf, \
size_t count, loff_t *ppos) \
{ \
char buf[buflen] = {}; \
size_t buf_size = min(count, sizeof(buf) - 1); \
\
if (copy_from_user(buf, user_buf, sizeof(buf))) \
return -EFAULT; \
\
return _iwl_dbgfs_link_sta_wrap_write(iwl_dbgfs_##name##_write, \
file, \
buf, buf_size, ppos); \
} \
#define MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \
static ssize_t _iwl_dbgfs_link_sta_##name##_read(struct file *file, \
char __user *user_buf, \
size_t count, loff_t *ppos) \
{ \
return _iwl_dbgfs_link_sta_wrap_read(iwl_dbgfs_##name##_read, \
file, \
user_buf, count, ppos); \
} \
#define MVM_DEBUGFS_WRITE_LINK_STA_FILE_OPS(name, bufsz) \
MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, bufsz) \
static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \
.write = _iwl_dbgfs_link_sta_##name##_write, \
.open = simple_open, \
.llseek = generic_file_llseek, \
}
#define MVM_DEBUGFS_READ_LINK_STA_FILE_OPS(name) \
MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \
static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \
.read = _iwl_dbgfs_link_sta_##name##_read, \
.open = simple_open, \
.llseek = generic_file_llseek, \
}
#define MVM_DEBUGFS_READ_WRITE_LINK_STA_FILE_OPS(name, bufsz) \
MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \
MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, bufsz) \
static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \
.read = _iwl_dbgfs_link_sta_##name##_read, \
.write = _iwl_dbgfs_link_sta_##name##_write, \
.open = simple_open, \
.llseek = generic_file_llseek, \
}
#define MVM_DEBUGFS_ADD_LINK_STA_FILE_ALIAS(alias, name, parent, mode) \
debugfs_create_file(alias, mode, parent, link_sta, \
&iwl_dbgfs_link_sta_##name##_ops)
#define MVM_DEBUGFS_ADD_LINK_STA_FILE(name, parent, mode) \
MVM_DEBUGFS_ADD_LINK_STA_FILE_ALIAS(#name, name, parent, mode)
static ssize_t
iwl_dbgfs_prph_reg_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
int pos = 0;
char buf[32];
const size_t bufsz = sizeof(buf);
if (!mvm->dbgfs_prph_reg_addr)
return -EINVAL;
pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
mvm->dbgfs_prph_reg_addr,
iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static ssize_t
iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
u8 args;
u32 value;
args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
/* if we only want to set the reg address - nothing more to do */
if (args == 1)
goto out;
/* otherwise, make sure we have both address and value */
if (args != 2)
return -EINVAL;
iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
out:
return count;
}
static ssize_t
iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
int ret;
if (!iwl_mvm_firmware_running(mvm))
return -EIO;
mutex_lock(&mvm->mutex);
ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
mutex_unlock(&mvm->mutex);
return ret ?: count;
}
struct iwl_mvm_sniffer_apply {
struct iwl_mvm *mvm;
u8 *bssid;
u16 aid;
};
static bool iwl_mvm_sniffer_apply(struct iwl_notif_wait_data *notif_data,
struct iwl_rx_packet *pkt, void *data)
{
struct iwl_mvm_sniffer_apply *apply = data;
apply->mvm->cur_aid = cpu_to_le16(apply->aid);
memcpy(apply->mvm->cur_bssid, apply->bssid,
sizeof(apply->mvm->cur_bssid));
return true;
}
static ssize_t
iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
struct iwl_notification_wait wait;
struct iwl_he_monitor_cmd he_mon_cmd = {};
struct iwl_mvm_sniffer_apply apply = {
.mvm = mvm,
};
u16 wait_cmds[] = {
WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD),
};
u32 aid;
int ret;
if (!iwl_mvm_firmware_running(mvm))
return -EIO;
ret = sscanf(buf, "%x %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx", &aid,
&he_mon_cmd.bssid[0], &he_mon_cmd.bssid[1],
&he_mon_cmd.bssid[2], &he_mon_cmd.bssid[3],
&he_mon_cmd.bssid[4], &he_mon_cmd.bssid[5]);
if (ret != 7)
return -EINVAL;
he_mon_cmd.aid = cpu_to_le16(aid);
apply.aid = aid;
apply.bssid = (void *)he_mon_cmd.bssid;
mutex_lock(&mvm->mutex);
/*
* Use the notification waiter to get our function triggered
* in sequence with other RX. This ensures that frames we get
* on the RX queue _before_ the new configuration is applied
* still have mvm->cur_aid pointing to the old AID, and that
* frames on the RX queue _after_ the firmware processed the
* new configuration (and sent the response, synchronously)
* get mvm->cur_aid correctly set to the new AID.
*/
iwl_init_notification_wait(&mvm->notif_wait, &wait,
wait_cmds, ARRAY_SIZE(wait_cmds),
iwl_mvm_sniffer_apply, &apply);
ret = iwl_mvm_send_cmd_pdu(mvm,
WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD),
0,
sizeof(he_mon_cmd), &he_mon_cmd);
/* no need to really wait, we already did anyway */
iwl_remove_notification(&mvm->notif_wait, &wait);
mutex_unlock(&mvm->mutex);
return ret ?: count;
}
static ssize_t
iwl_dbgfs_he_sniffer_params_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
u8 buf[32];
int len;
len = scnprintf(buf, sizeof(buf),
"%d %02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx\n",
le16_to_cpu(mvm->cur_aid), mvm->cur_bssid[0],
mvm->cur_bssid[1], mvm->cur_bssid[2], mvm->cur_bssid[3],
mvm->cur_bssid[4], mvm->cur_bssid[5]);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t
iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
u8 buf[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM * ETH_ALEN * 3 + 1];
unsigned int pos = 0;
size_t bufsz = sizeof(buf);
int i;
mutex_lock(&mvm->mutex);
for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++)
pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
mvm->uapsd_noagg_bssids[i].addr);
mutex_unlock(&mvm->mutex);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static ssize_t
iwl_dbgfs_ltr_config_write(struct iwl_mvm *mvm,
char *buf, size_t count, loff_t *ppos)
{
int ret;
struct iwl_ltr_config_cmd ltr_config = {0};
if (!iwl_mvm_firmware_running(mvm))
return -EIO;
if (sscanf(buf, "%x,%x,%x,%x,%x,%x,%x",
&ltr_config.flags,
&ltr_config.static_long,
&ltr_config.static_short,
&ltr_config.ltr_cfg_values[0],
&ltr_config.ltr_cfg_values[1],
&ltr_config.ltr_cfg_values[2],
&ltr_config.ltr_cfg_values[3]) != 7) {
return -EINVAL;
}
mutex_lock(&mvm->mutex);
ret = iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0, sizeof(ltr_config),
&ltr_config);
mutex_unlock(&mvm->mutex);
if (ret)
IWL_ERR(mvm, "failed to send ltr configuration cmd\n");
return ret ?: count;
}
static ssize_t iwl_dbgfs_rfi_freq_table_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
int ret = 0;
u16 op_id;
if (kstrtou16(buf, 10, &op_id))
return -EINVAL;
/* value zero triggers re-sending the default table to the device */
if (!op_id) {
mutex_lock(&mvm->mutex);
ret = iwl_rfi_send_config_cmd(mvm, NULL);
mutex_unlock(&mvm->mutex);
} else {
ret = -EOPNOTSUPP; /* in the future a new table will be added */
}
return ret ?: count;
}
/* The size computation is as follows:
* each number needs at most 3 characters, number of rows is the size of
* the table; So, need 5 chars for the "freq: " part and each tuple afterwards
* needs 6 characters for numbers and 5 for the punctuation around.
*/
#define IWL_RFI_BUF_SIZE (IWL_RFI_LUT_INSTALLED_SIZE *\
(5 + IWL_RFI_LUT_ENTRY_CHANNELS_NUM * (6 + 5)))
static ssize_t iwl_dbgfs_rfi_freq_table_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
struct iwl_rfi_freq_table_resp_cmd *resp;
u32 status;
char buf[IWL_RFI_BUF_SIZE];
int i, j, pos = 0;
resp = iwl_rfi_get_freq_table(mvm);
if (IS_ERR(resp))
return PTR_ERR(resp);
status = le32_to_cpu(resp->status);
if (status != RFI_FREQ_TABLE_OK) {
scnprintf(buf, IWL_RFI_BUF_SIZE, "status = %d\n", status);
goto out;
}
for (i = 0; i < ARRAY_SIZE(resp->table); i++) {
pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "%d: ",
resp->table[i].freq);
for (j = 0; j < ARRAY_SIZE(resp->table[i].channels); j++)
pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos,
"(%d, %d) ",
resp->table[i].channels[j],
resp->table[i].bands[j]);
pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "\n");
}
out:
kfree(resp);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
/* Device wide debugfs entries */
MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget);
MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8);
MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8);
MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
MVM_DEBUGFS_READ_FILE_OPS(stations);
MVM_DEBUGFS_READ_LINK_STA_FILE_OPS(rs_data);
MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
MVM_DEBUGFS_READ_FILE_OPS(fw_ver);
MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver);
MVM_DEBUGFS_READ_FILE_OPS(tas_get_status);
MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64);
MVM_DEBUGFS_WRITE_FILE_OPS(dbg_time_point, 64);
MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl,
(IWL_RSS_INDIRECTION_TABLE_SIZE * 2));
MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512);
MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie, 512);
MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie_restore, 512);
MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids);
#ifdef CONFIG_ACPI
MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile);
MVM_DEBUGFS_READ_FILE_OPS(wifi_6e_enable);
#endif
MVM_DEBUGFS_READ_WRITE_LINK_STA_FILE_OPS(amsdu_len, 16);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32);
MVM_DEBUGFS_WRITE_FILE_OPS(ltr_config, 512);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(rfi_freq_table, 16);
static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
struct iwl_dbg_mem_access_cmd cmd = {};
struct iwl_dbg_mem_access_rsp *rsp;
struct iwl_host_cmd hcmd = {
.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
.data = { &cmd, },
.len = { sizeof(cmd) },
};
size_t delta;
ssize_t ret, len;
if (!iwl_mvm_firmware_running(mvm))
return -EIO;
hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR);
cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ);
/* Take care of alignment of both the position and the length */
delta = *ppos & 0x3;
cmd.addr = cpu_to_le32(*ppos - delta);
cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4,
(size_t)DEBUG_MEM_MAX_SIZE_DWORDS));
mutex_lock(&mvm->mutex);
ret = iwl_mvm_send_cmd(mvm, &hcmd);
mutex_unlock(&mvm->mutex);
if (ret < 0)
return ret;
if (iwl_rx_packet_payload_len(hcmd.resp_pkt) < sizeof(*rsp)) {
ret = -EIO;
goto out;
}
rsp = (void *)hcmd.resp_pkt->data;
if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) {
ret = -ENXIO;
goto out;
}
len = min((size_t)le32_to_cpu(rsp->len) << 2,
iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp));
len = min(len - delta, count);
if (len < 0) {
ret = -EFAULT;
goto out;
}
ret = len - copy_to_user(user_buf, (u8 *)rsp->data + delta, len);
*ppos += ret;
out:
iwl_free_resp(&hcmd);
return ret;
}
static ssize_t iwl_dbgfs_mem_write(struct file *file,
const char __user *user_buf, size_t count,
loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
struct iwl_dbg_mem_access_cmd *cmd;
struct iwl_dbg_mem_access_rsp *rsp;
struct iwl_host_cmd hcmd = {};
size_t cmd_size;
size_t data_size;
u32 op, len;
ssize_t ret;
if (!iwl_mvm_firmware_running(mvm))
return -EIO;
hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR);
if (*ppos & 0x3 || count < 4) {
op = DEBUG_MEM_OP_WRITE_BYTES;
len = min(count, (size_t)(4 - (*ppos & 0x3)));
data_size = len;
} else {
op = DEBUG_MEM_OP_WRITE;
len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS);
data_size = len << 2;
}
cmd_size = sizeof(*cmd) + ALIGN(data_size, 4);
cmd = kzalloc(cmd_size, GFP_KERNEL);
if (!cmd)
return -ENOMEM;
cmd->op = cpu_to_le32(op);
cmd->len = cpu_to_le32(len);
cmd->addr = cpu_to_le32(*ppos);
if (copy_from_user((void *)cmd->data, user_buf, data_size)) {
kfree(cmd);
return -EFAULT;
}
hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
hcmd.data[0] = (void *)cmd;
hcmd.len[0] = cmd_size;
mutex_lock(&mvm->mutex);
ret = iwl_mvm_send_cmd(mvm, &hcmd);
mutex_unlock(&mvm->mutex);
kfree(cmd);
if (ret < 0)
return ret;
if (iwl_rx_packet_payload_len(hcmd.resp_pkt) < sizeof(*rsp)) {
ret = -EIO;
goto out;
}
rsp = (void *)hcmd.resp_pkt->data;
if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) {
ret = -ENXIO;
goto out;
}
ret = data_size;
*ppos += ret;
out:
iwl_free_resp(&hcmd);
return ret;
}
static const struct file_operations iwl_dbgfs_mem_ops = {
.read = iwl_dbgfs_mem_read,
.write = iwl_dbgfs_mem_write,
.open = simple_open,
.llseek = default_llseek,
};
void iwl_mvm_link_sta_add_debugfs(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_link_sta *link_sta,
struct dentry *dir)
{
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
if (iwl_mvm_has_tlc_offload(mvm)) {
MVM_DEBUGFS_ADD_LINK_STA_FILE(rs_data, dir, 0400);
}
MVM_DEBUGFS_ADD_LINK_STA_FILE(amsdu_len, dir, 0600);
}
void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm)
{
struct dentry *bcast_dir __maybe_unused;
spin_lock_init(&mvm->drv_stats_lock);
MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, 0600);
MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 0600);
MVM_DEBUGFS_ADD_FILE(nic_temp, mvm->debugfs_dir, 0400);
MVM_DEBUGFS_ADD_FILE(ctdp_budget, mvm->debugfs_dir, 0400);
MVM_DEBUGFS_ADD_FILE(stop_ctdp, mvm->debugfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE(force_ctkill, mvm->debugfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE(stations, mvm->debugfs_dir, 0400);
MVM_DEBUGFS_ADD_FILE(bt_notif, mvm->debugfs_dir, 0400);
MVM_DEBUGFS_ADD_FILE(bt_cmd, mvm->debugfs_dir, 0400);
MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 0600);
MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400);
MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400);
MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400);
MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 0600);
MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600);
MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600);
MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE(dbg_time_point, mvm->debugfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE(inject_beacon_ie, mvm->debugfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE(inject_beacon_ie_restore, mvm->debugfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE(rfi_freq_table, mvm->debugfs_dir, 0600);
if (mvm->fw->phy_integration_ver)
MVM_DEBUGFS_ADD_FILE(phy_integration_ver, mvm->debugfs_dir, 0400);
MVM_DEBUGFS_ADD_FILE(tas_get_status, mvm->debugfs_dir, 0400);
#ifdef CONFIG_ACPI
MVM_DEBUGFS_ADD_FILE(sar_geo_profile, mvm->debugfs_dir, 0400);
MVM_DEBUGFS_ADD_FILE(wifi_6e_enable, mvm->debugfs_dir, 0400);
#endif
MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600);
if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2))
MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200);
debugfs_create_bool("enable_scan_iteration_notif", 0600,
mvm->debugfs_dir, &mvm->scan_iter_notif_enabled);
debugfs_create_bool("drop_bcn_ap_mode", 0600, mvm->debugfs_dir,
&mvm->drop_bcn_ap_mode);
MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR);
#ifdef CONFIG_PM_SLEEP
MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400);
debugfs_create_bool("d3_wake_sysassert", 0600, mvm->debugfs_dir,
&mvm->d3_wake_sysassert);
debugfs_create_u32("last_netdetect_scans", 0400, mvm->debugfs_dir,
&mvm->last_netdetect_scans);
#endif
debugfs_create_u8("ps_disabled", 0400, mvm->debugfs_dir,
&mvm->ps_disabled);
debugfs_create_blob("nvm_hw", 0400, mvm->debugfs_dir,
&mvm->nvm_hw_blob);
debugfs_create_blob("nvm_sw", 0400, mvm->debugfs_dir,
&mvm->nvm_sw_blob);
debugfs_create_blob("nvm_calib", 0400, mvm->debugfs_dir,
&mvm->nvm_calib_blob);
debugfs_create_blob("nvm_prod", 0400, mvm->debugfs_dir,
&mvm->nvm_prod_blob);
debugfs_create_blob("nvm_phy_sku", 0400, mvm->debugfs_dir,
&mvm->nvm_phy_sku_blob);
debugfs_create_blob("nvm_reg", S_IRUSR,
mvm->debugfs_dir, &mvm->nvm_reg_blob);
debugfs_create_file("mem", 0600, mvm->debugfs_dir, mvm,
&iwl_dbgfs_mem_ops);
/*
* Create a symlink with mac80211. It will be removed when mac80211
* exists (before the opmode exists which removes the target.)
*/
if (!IS_ERR(mvm->debugfs_dir)) {
char buf[100];
snprintf(buf, 100, "../../%pd2", mvm->debugfs_dir->d_parent);
debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir,
buf);
}
}
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