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

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/******************************************************************************
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2012 - 2014 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 COPYING.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*****************************************************************************/
#include "mvm.h"
#include "sta.h"
#include "iwl-io.h"
#include "iwl-prph.h"
#include "debugfs.h"
static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
int ret;
u32 scd_q_msk;
if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
return -EIO;
if (sscanf(buf, "%x", &scd_q_msk) != 1)
return -EINVAL;
IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
mutex_lock(&mvm->mutex);
ret = iwl_mvm_flush_tx_path(mvm, scd_q_msk, true) ? : 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 (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
return -EIO;
if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
return -EINVAL;
if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
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 (!mvm->ucode_loaded)
return -EINVAL;
/* default is to dump the entire data segment */
img = &mvm->fw->img[mvm->cur_ucode];
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 (!mvm->ucode_loaded)
return -EINVAL;
img = &mvm->fw->img[mvm->cur_ucode];
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_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 < IWL_MVM_STATION_COUNT; 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_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 (!mvm->ucode_loaded)
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;
}
#define BT_MBOX_MSG(_notif, _num, _field) \
((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
>> BT_MBOX##_num##_##_field##_POS)
#define BT_MBOX_PRINT(_num, _field, _end) \
pos += scnprintf(buf + pos, bufsz - pos, \
"\t%s: %d%s", \
#_field, \
BT_MBOX_MSG(notif, _num, _field), \
true ? "\n" : ", ");
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 += 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, 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);
pos += scnprintf(buf+pos, bufsz-pos, "bt_status = %d\n",
notif->bt_status);
pos += scnprintf(buf+pos, bufsz-pos, "bt_open_conn = %d\n",
notif->bt_open_conn);
pos += scnprintf(buf+pos, bufsz-pos, "bt_traffic_load = %d\n",
notif->bt_traffic_load);
pos += scnprintf(buf+pos, bufsz-pos, "bt_agg_traffic_load = %d\n",
notif->bt_agg_traffic_load);
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,
"antenna isolation = %d CORUN LUT index = %d\n",
mvm->last_ant_isol, mvm->last_corun_lut);
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 Fat: %d\n",
le64_to_cpu(cmd->bt_primary_ci),
!!cmd->co_run_bw_primary);
pos += scnprintf(buf+pos, bufsz-pos,
"\tSecondary Channel Bitmap 0x%016llx Fat: %d\n",
le64_to_cpu(cmd->bt_secondary_ci),
!!cmd->co_run_bw_secondary);
pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n");
pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill Mask 0x%08x\n",
iwl_bt_ack_kill_msk[mvm->bt_kill_msk]);
pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill Mask 0x%08x\n",
iwl_bt_cts_kill_msk[mvm->bt_kill_msk]);
mutex_unlock(&mvm->mutex);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
#define PRINT_STATS_LE32(_str, _val) \
pos += scnprintf(buf + pos, bufsz - pos, \
fmt_table, _str, \
le32_to_cpu(_val))
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;
/* 43 is the size of each data line, 33 is the size of each header */
size_t bufsz =
((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
(4 * 33) + 1;
struct mvm_statistics_rx_phy *ofdm;
struct mvm_statistics_rx_phy *cck;
struct mvm_statistics_rx_non_phy *general;
struct mvm_statistics_rx_ht_phy *ht;
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
mutex_lock(&mvm->mutex);
ofdm = &mvm->rx_stats.ofdm;
cck = &mvm->rx_stats.cck;
general = &mvm->rx_stats.general;
ht = &mvm->rx_stats.ofdm_ht;
pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
"Statistics_Rx - OFDM");
PRINT_STATS_LE32("ina_cnt", ofdm->ina_cnt);
PRINT_STATS_LE32("fina_cnt", ofdm->fina_cnt);
PRINT_STATS_LE32("plcp_err", ofdm->plcp_err);
PRINT_STATS_LE32("crc32_err", ofdm->crc32_err);
PRINT_STATS_LE32("overrun_err", ofdm->overrun_err);
PRINT_STATS_LE32("early_overrun_err", ofdm->early_overrun_err);
PRINT_STATS_LE32("crc32_good", ofdm->crc32_good);
PRINT_STATS_LE32("false_alarm_cnt", ofdm->false_alarm_cnt);
PRINT_STATS_LE32("fina_sync_err_cnt", ofdm->fina_sync_err_cnt);
PRINT_STATS_LE32("sfd_timeout", ofdm->sfd_timeout);
PRINT_STATS_LE32("fina_timeout", ofdm->fina_timeout);
PRINT_STATS_LE32("unresponded_rts", ofdm->unresponded_rts);
PRINT_STATS_LE32("rxe_frame_lmt_overrun",
ofdm->rxe_frame_limit_overrun);
PRINT_STATS_LE32("sent_ack_cnt", ofdm->sent_ack_cnt);
PRINT_STATS_LE32("sent_cts_cnt", ofdm->sent_cts_cnt);
PRINT_STATS_LE32("sent_ba_rsp_cnt", ofdm->sent_ba_rsp_cnt);
PRINT_STATS_LE32("dsp_self_kill", ofdm->dsp_self_kill);
PRINT_STATS_LE32("mh_format_err", ofdm->mh_format_err);
PRINT_STATS_LE32("re_acq_main_rssi_sum", ofdm->re_acq_main_rssi_sum);
PRINT_STATS_LE32("reserved", ofdm->reserved);
pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
"Statistics_Rx - CCK");
PRINT_STATS_LE32("ina_cnt", cck->ina_cnt);
PRINT_STATS_LE32("fina_cnt", cck->fina_cnt);
PRINT_STATS_LE32("plcp_err", cck->plcp_err);
PRINT_STATS_LE32("crc32_err", cck->crc32_err);
PRINT_STATS_LE32("overrun_err", cck->overrun_err);
PRINT_STATS_LE32("early_overrun_err", cck->early_overrun_err);
PRINT_STATS_LE32("crc32_good", cck->crc32_good);
PRINT_STATS_LE32("false_alarm_cnt", cck->false_alarm_cnt);
PRINT_STATS_LE32("fina_sync_err_cnt", cck->fina_sync_err_cnt);
PRINT_STATS_LE32("sfd_timeout", cck->sfd_timeout);
PRINT_STATS_LE32("fina_timeout", cck->fina_timeout);
PRINT_STATS_LE32("unresponded_rts", cck->unresponded_rts);
PRINT_STATS_LE32("rxe_frame_lmt_overrun",
cck->rxe_frame_limit_overrun);
PRINT_STATS_LE32("sent_ack_cnt", cck->sent_ack_cnt);
PRINT_STATS_LE32("sent_cts_cnt", cck->sent_cts_cnt);
PRINT_STATS_LE32("sent_ba_rsp_cnt", cck->sent_ba_rsp_cnt);
PRINT_STATS_LE32("dsp_self_kill", cck->dsp_self_kill);
PRINT_STATS_LE32("mh_format_err", cck->mh_format_err);
PRINT_STATS_LE32("re_acq_main_rssi_sum", cck->re_acq_main_rssi_sum);
PRINT_STATS_LE32("reserved", cck->reserved);
pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
"Statistics_Rx - GENERAL");
PRINT_STATS_LE32("bogus_cts", general->bogus_cts);
PRINT_STATS_LE32("bogus_ack", general->bogus_ack);
PRINT_STATS_LE32("non_bssid_frames", general->non_bssid_frames);
PRINT_STATS_LE32("filtered_frames", general->filtered_frames);
PRINT_STATS_LE32("non_channel_beacons", general->non_channel_beacons);
PRINT_STATS_LE32("channel_beacons", general->channel_beacons);
PRINT_STATS_LE32("num_missed_bcon", general->num_missed_bcon);
PRINT_STATS_LE32("adc_rx_saturation_time",
general->adc_rx_saturation_time);
PRINT_STATS_LE32("ina_detection_search_time",
general->ina_detection_search_time);
PRINT_STATS_LE32("beacon_silence_rssi_a",
general->beacon_silence_rssi_a);
PRINT_STATS_LE32("beacon_silence_rssi_b",
general->beacon_silence_rssi_b);
PRINT_STATS_LE32("beacon_silence_rssi_c",
general->beacon_silence_rssi_c);
PRINT_STATS_LE32("interference_data_flag",
general->interference_data_flag);
PRINT_STATS_LE32("channel_load", general->channel_load);
PRINT_STATS_LE32("dsp_false_alarms", general->dsp_false_alarms);
PRINT_STATS_LE32("beacon_rssi_a", general->beacon_rssi_a);
PRINT_STATS_LE32("beacon_rssi_b", general->beacon_rssi_b);
PRINT_STATS_LE32("beacon_rssi_c", general->beacon_rssi_c);
PRINT_STATS_LE32("beacon_energy_a", general->beacon_energy_a);
PRINT_STATS_LE32("beacon_energy_b", general->beacon_energy_b);
PRINT_STATS_LE32("beacon_energy_c", general->beacon_energy_c);
PRINT_STATS_LE32("num_bt_kills", general->num_bt_kills);
PRINT_STATS_LE32("mac_id", general->mac_id);
PRINT_STATS_LE32("directed_data_mpdu", general->directed_data_mpdu);
pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
"Statistics_Rx - HT");
PRINT_STATS_LE32("plcp_err", ht->plcp_err);
PRINT_STATS_LE32("overrun_err", ht->overrun_err);
PRINT_STATS_LE32("early_overrun_err", ht->early_overrun_err);
PRINT_STATS_LE32("crc32_good", ht->crc32_good);
PRINT_STATS_LE32("crc32_err", ht->crc32_err);
PRINT_STATS_LE32("mh_format_err", ht->mh_format_err);
PRINT_STATS_LE32("agg_crc32_good", ht->agg_crc32_good);
PRINT_STATS_LE32("agg_mpdu_cnt", ht->agg_mpdu_cnt);
PRINT_STATS_LE32("agg_cnt", ht->agg_cnt);
PRINT_STATS_LE32("unsupport_mcs", 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(pos, stats->last_rates[idx]);
}
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 ret;
mutex_lock(&mvm->mutex);
/* allow one more restart that we're provoking here */
if (mvm->restart_fw >= 0)
mvm->restart_fw++;
/* take the return value to make compiler happy - it will fail anyway */
ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, CMD_SYNC, 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)
{
iwl_write_prph(mvm->trans, DEVICE_SET_NMI_REG, 1);
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");
if (mvm->scan_rx_ant & ANT_C)
pos += scnprintf(buf + pos, bufsz - pos, "C");
pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\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 (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
return -EINVAL;
if (scan_rx_ant > ANT_ABC)
return -EINVAL;
if (scan_rx_ant & ~mvm->fw->valid_rx_ant)
return -EINVAL;
mvm->scan_rx_ant = scan_rx_ant;
return count;
}
#define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
struct iwl_bcast_filter_cmd cmd;
const struct iwl_fw_bcast_filter *filter;
char *buf;
int bufsz = 1024;
int i, j, pos = 0;
ssize_t ret;
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
mutex_lock(&mvm->mutex);
if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
ADD_TEXT("None\n");
mutex_unlock(&mvm->mutex);
goto out;
}
mutex_unlock(&mvm->mutex);
for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
filter = &cmd.filters[i];
ADD_TEXT("Filter [%d]:\n", i);
ADD_TEXT("\tDiscard=%d\n", filter->discard);
ADD_TEXT("\tFrame Type: %s\n",
filter->frame_type ? "IPv4" : "Generic");
for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
const struct iwl_fw_bcast_filter_attr *attr;
attr = &filter->attrs[j];
if (!attr->mask)
break;
ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
j, attr->offset,
attr->offset_type ? "IP End" :
"Payload Start",
be32_to_cpu(attr->mask),
be32_to_cpu(attr->val),
le16_to_cpu(attr->reserved1));
}
}
out:
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
int pos, next_pos;
struct iwl_fw_bcast_filter filter = {};
struct iwl_bcast_filter_cmd cmd;
u32 filter_id, attr_id, mask, value;
int err = 0;
if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
&filter.frame_type, &pos) != 3)
return -EINVAL;
if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
return -EINVAL;
for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
attr_id++) {
struct iwl_fw_bcast_filter_attr *attr =
&filter.attrs[attr_id];
if (pos >= count)
break;
if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
&attr->offset, &attr->offset_type,
&mask, &value, &next_pos) != 4)
return -EINVAL;
attr->mask = cpu_to_be32(mask);
attr->val = cpu_to_be32(value);
if (mask)
filter.num_attrs++;
pos += next_pos;
}
mutex_lock(&mvm->mutex);
memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
&filter, sizeof(filter));
/* send updated bcast filtering configuration */
if (mvm->dbgfs_bcast_filtering.override &&
iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, CMD_SYNC,
sizeof(cmd), &cmd);
mutex_unlock(&mvm->mutex);
return err ?: count;
}
static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
struct iwl_bcast_filter_cmd cmd;
char *buf;
int bufsz = 1024;
int i, pos = 0;
ssize_t ret;
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
mutex_lock(&mvm->mutex);
if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
ADD_TEXT("None\n");
mutex_unlock(&mvm->mutex);
goto out;
}
mutex_unlock(&mvm->mutex);
for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
i, mac->default_discard, mac->attached_filters);
}
out:
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
char *buf, size_t count,
loff_t *ppos)
{
struct iwl_bcast_filter_cmd cmd;
struct iwl_fw_bcast_mac mac = {};
u32 mac_id, attached_filters;
int err = 0;
if (!mvm->bcast_filters)
return -ENOENT;
if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
&attached_filters) != 3)
return -EINVAL;
if (mac_id >= ARRAY_SIZE(cmd.macs) ||
mac.default_discard > 1 ||
attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
return -EINVAL;
mac.attached_filters = cpu_to_le16(attached_filters);
mutex_lock(&mvm->mutex);
memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
&mac, sizeof(mac));
/* send updated bcast filtering configuration */
if (mvm->dbgfs_bcast_filtering.override &&
iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, CMD_SYNC,
sizeof(cmd), &cmd);
mutex_unlock(&mvm->mutex);
return err ?: count;
}
#endif
#ifdef CONFIG_PM_SLEEP
static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
int store;
if (sscanf(buf, "%d", &store) != 1)
return -EINVAL;
mvm->store_d3_resume_sram = store;
return count;
}
static ssize_t iwl_dbgfs_d3_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;
int ofs, len, pos = 0;
size_t bufsz, ret;
char *buf;
u8 *ptr = mvm->d3_resume_sram;
img = &mvm->fw->img[IWL_UCODE_WOWLAN];
len = img->sec[IWL_UCODE_SECTION_DATA].len;
bufsz = len * 4 + 256;
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
mvm->store_d3_resume_sram ? "en" : "dis");
if (ptr) {
for (ofs = 0; ofs < len; ofs += 16) {
pos += scnprintf(buf + pos, bufsz - pos,
"0x%.4x ", ofs);
hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
bufsz - pos, false);
pos += strlen(buf + pos);
if (bufsz - pos > 0)
buf[pos++] = '\n';
}
} else {
pos += scnprintf(buf + pos, bufsz - pos,
"(no data captured)\n");
}
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
#endif
#define PRINT_MVM_REF(ref) do { \
if (test_bit(ref, mvm->ref_bitmap)) \
pos += scnprintf(buf + pos, bufsz - pos, \
"\t(0x%lx) %s\n", \
BIT(ref), #ref); \
} while (0)
static ssize_t iwl_dbgfs_d0i3_refs_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[256];
const size_t bufsz = sizeof(buf);
pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%lx\n",
mvm->ref_bitmap[0]);
PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);
PRINT_MVM_REF(IWL_MVM_REF_SCAN);
PRINT_MVM_REF(IWL_MVM_REF_ROC);
PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);
PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);
PRINT_MVM_REF(IWL_MVM_REF_USER);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
unsigned long value;
int ret;
bool taken;
ret = kstrtoul(buf, 10, &value);
if (ret < 0)
return ret;
mutex_lock(&mvm->mutex);
taken = test_bit(IWL_MVM_REF_USER, mvm->ref_bitmap);
if (value == 1 && !taken)
iwl_mvm_ref(mvm, IWL_MVM_REF_USER);
else if (value == 0 && taken)
iwl_mvm_unref(mvm, IWL_MVM_REF_USER);
else
ret = -EINVAL;
mutex_unlock(&mvm->mutex);
if (ret < 0)
return ret;
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 { \
if (!debugfs_create_file(alias, mode, parent, mvm, \
&iwl_dbgfs_##name##_ops)) \
goto err; \
} while (0)
#define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
MVM_DEBUGFS_ADD_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;
}
MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
/* Device wide debugfs entries */
MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
MVM_DEBUGFS_READ_FILE_OPS(stations);
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_WRITE_FILE_OPS(fw_restart, 10);
MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
#endif
#ifdef CONFIG_PM_SLEEP
MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
#endif
int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
{
struct dentry *bcast_dir __maybe_unused;
char buf[100];
spin_lock_init(&mvm->drv_stats_lock);
mvm->debugfs_dir = dbgfs_dir;
MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD)
MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
S_IRUSR | S_IWUSR);
MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR);
MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);
MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
S_IWUSR | S_IRUSR);
MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
bcast_dir = debugfs_create_dir("bcast_filtering",
mvm->debugfs_dir);
if (!bcast_dir)
goto err;
if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR,
bcast_dir,
&mvm->dbgfs_bcast_filtering.override))
goto err;
MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
bcast_dir, S_IWUSR | S_IRUSR);
MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
bcast_dir, S_IWUSR | S_IRUSR);
}
#endif
#ifdef CONFIG_PM_SLEEP
MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
mvm->debugfs_dir, &mvm->d3_wake_sysassert))
goto err;
#endif
if (!debugfs_create_blob("nvm_hw", S_IRUSR,
mvm->debugfs_dir, &mvm->nvm_hw_blob))
goto err;
if (!debugfs_create_blob("nvm_sw", S_IRUSR,
mvm->debugfs_dir, &mvm->nvm_sw_blob))
goto err;
if (!debugfs_create_blob("nvm_calib", S_IRUSR,
mvm->debugfs_dir, &mvm->nvm_calib_blob))
goto err;
if (!debugfs_create_blob("nvm_prod", S_IRUSR,
mvm->debugfs_dir, &mvm->nvm_prod_blob))
goto err;
/*
* Create a symlink with mac80211. It will be removed when mac80211
* exists (before the opmode exists which removes the target.)
*/
snprintf(buf, 100, "../../%s/%s",
dbgfs_dir->d_parent->d_parent->d_name.name,
dbgfs_dir->d_parent->d_name.name);
if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
goto err;
return 0;
err:
IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
return -ENOMEM;
}
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