| /* |
| * Copyright (c) 2005-2011 Atheros Communications Inc. |
| * Copyright (c) 2011-2013 Qualcomm Atheros, Inc. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/debugfs.h> |
| #include <linux/vmalloc.h> |
| #include <linux/utsname.h> |
| |
| #include "core.h" |
| #include "debug.h" |
| #include "hif.h" |
| #include "wmi-ops.h" |
| |
| /* ms */ |
| #define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000 |
| |
| #define ATH10K_FW_CRASH_DUMP_VERSION 1 |
| |
| /** |
| * enum ath10k_fw_crash_dump_type - types of data in the dump file |
| * @ATH10K_FW_CRASH_DUMP_REGDUMP: Register crash dump in binary format |
| */ |
| enum ath10k_fw_crash_dump_type { |
| ATH10K_FW_CRASH_DUMP_REGISTERS = 0, |
| |
| ATH10K_FW_CRASH_DUMP_MAX, |
| }; |
| |
| struct ath10k_tlv_dump_data { |
| /* see ath10k_fw_crash_dump_type above */ |
| __le32 type; |
| |
| /* in bytes */ |
| __le32 tlv_len; |
| |
| /* pad to 32-bit boundaries as needed */ |
| u8 tlv_data[]; |
| } __packed; |
| |
| struct ath10k_dump_file_data { |
| /* dump file information */ |
| |
| /* "ATH10K-FW-DUMP" */ |
| char df_magic[16]; |
| |
| __le32 len; |
| |
| /* file dump version */ |
| __le32 version; |
| |
| /* some info we can get from ath10k struct that might help */ |
| |
| u8 uuid[16]; |
| |
| __le32 chip_id; |
| |
| /* 0 for now, in place for later hardware */ |
| __le32 bus_type; |
| |
| __le32 target_version; |
| __le32 fw_version_major; |
| __le32 fw_version_minor; |
| __le32 fw_version_release; |
| __le32 fw_version_build; |
| __le32 phy_capability; |
| __le32 hw_min_tx_power; |
| __le32 hw_max_tx_power; |
| __le32 ht_cap_info; |
| __le32 vht_cap_info; |
| __le32 num_rf_chains; |
| |
| /* firmware version string */ |
| char fw_ver[ETHTOOL_FWVERS_LEN]; |
| |
| /* Kernel related information */ |
| |
| /* time-of-day stamp */ |
| __le64 tv_sec; |
| |
| /* time-of-day stamp, nano-seconds */ |
| __le64 tv_nsec; |
| |
| /* LINUX_VERSION_CODE */ |
| __le32 kernel_ver_code; |
| |
| /* VERMAGIC_STRING */ |
| char kernel_ver[64]; |
| |
| /* room for growth w/out changing binary format */ |
| u8 unused[128]; |
| |
| /* struct ath10k_tlv_dump_data + more */ |
| u8 data[0]; |
| } __packed; |
| |
| void ath10k_info(struct ath10k *ar, const char *fmt, ...) |
| { |
| struct va_format vaf = { |
| .fmt = fmt, |
| }; |
| va_list args; |
| |
| va_start(args, fmt); |
| vaf.va = &args; |
| dev_info(ar->dev, "%pV", &vaf); |
| trace_ath10k_log_info(ar, &vaf); |
| va_end(args); |
| } |
| EXPORT_SYMBOL(ath10k_info); |
| |
| void ath10k_print_driver_info(struct ath10k *ar) |
| { |
| char fw_features[128] = {}; |
| |
| ath10k_core_get_fw_features_str(ar, fw_features, sizeof(fw_features)); |
| |
| ath10k_info(ar, "%s (0x%08x, 0x%08x%s%s%s) fw %s api %d htt-ver %d.%d wmi-op %d htt-op %d cal %s max-sta %d raw %d hwcrypto %d features %s\n", |
| ar->hw_params.name, |
| ar->target_version, |
| ar->chip_id, |
| (strlen(ar->spec_board_id) > 0 ? ", " : ""), |
| ar->spec_board_id, |
| (strlen(ar->spec_board_id) > 0 && !ar->spec_board_loaded |
| ? " fallback" : ""), |
| ar->hw->wiphy->fw_version, |
| ar->fw_api, |
| ar->htt.target_version_major, |
| ar->htt.target_version_minor, |
| ar->wmi.op_version, |
| ar->htt.op_version, |
| ath10k_cal_mode_str(ar->cal_mode), |
| ar->max_num_stations, |
| test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags), |
| !test_bit(ATH10K_FLAG_HW_CRYPTO_DISABLED, &ar->dev_flags), |
| fw_features); |
| ath10k_info(ar, "debug %d debugfs %d tracing %d dfs %d testmode %d\n", |
| config_enabled(CONFIG_ATH10K_DEBUG), |
| config_enabled(CONFIG_ATH10K_DEBUGFS), |
| config_enabled(CONFIG_ATH10K_TRACING), |
| config_enabled(CONFIG_ATH10K_DFS_CERTIFIED), |
| config_enabled(CONFIG_NL80211_TESTMODE)); |
| } |
| EXPORT_SYMBOL(ath10k_print_driver_info); |
| |
| void ath10k_err(struct ath10k *ar, const char *fmt, ...) |
| { |
| struct va_format vaf = { |
| .fmt = fmt, |
| }; |
| va_list args; |
| |
| va_start(args, fmt); |
| vaf.va = &args; |
| dev_err(ar->dev, "%pV", &vaf); |
| trace_ath10k_log_err(ar, &vaf); |
| va_end(args); |
| } |
| EXPORT_SYMBOL(ath10k_err); |
| |
| void ath10k_warn(struct ath10k *ar, const char *fmt, ...) |
| { |
| struct va_format vaf = { |
| .fmt = fmt, |
| }; |
| va_list args; |
| |
| va_start(args, fmt); |
| vaf.va = &args; |
| dev_warn_ratelimited(ar->dev, "%pV", &vaf); |
| trace_ath10k_log_warn(ar, &vaf); |
| |
| va_end(args); |
| } |
| EXPORT_SYMBOL(ath10k_warn); |
| |
| #ifdef CONFIG_ATH10K_DEBUGFS |
| |
| static ssize_t ath10k_read_wmi_services(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| char *buf; |
| unsigned int len = 0, buf_len = 4096; |
| const char *name; |
| ssize_t ret_cnt; |
| bool enabled; |
| int i; |
| |
| buf = kzalloc(buf_len, GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| if (len > buf_len) |
| len = buf_len; |
| |
| spin_lock_bh(&ar->data_lock); |
| for (i = 0; i < WMI_SERVICE_MAX; i++) { |
| enabled = test_bit(i, ar->wmi.svc_map); |
| name = wmi_service_name(i); |
| |
| if (!name) { |
| if (enabled) |
| len += scnprintf(buf + len, buf_len - len, |
| "%-40s %s (bit %d)\n", |
| "unknown", "enabled", i); |
| |
| continue; |
| } |
| |
| len += scnprintf(buf + len, buf_len - len, |
| "%-40s %s\n", |
| name, enabled ? "enabled" : "-"); |
| } |
| spin_unlock_bh(&ar->data_lock); |
| |
| ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| |
| mutex_unlock(&ar->conf_mutex); |
| |
| kfree(buf); |
| return ret_cnt; |
| } |
| |
| static const struct file_operations fops_wmi_services = { |
| .read = ath10k_read_wmi_services, |
| .open = simple_open, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| static void ath10k_debug_fw_stats_pdevs_free(struct list_head *head) |
| { |
| struct ath10k_fw_stats_pdev *i, *tmp; |
| |
| list_for_each_entry_safe(i, tmp, head, list) { |
| list_del(&i->list); |
| kfree(i); |
| } |
| } |
| |
| static void ath10k_debug_fw_stats_vdevs_free(struct list_head *head) |
| { |
| struct ath10k_fw_stats_vdev *i, *tmp; |
| |
| list_for_each_entry_safe(i, tmp, head, list) { |
| list_del(&i->list); |
| kfree(i); |
| } |
| } |
| |
| static void ath10k_debug_fw_stats_peers_free(struct list_head *head) |
| { |
| struct ath10k_fw_stats_peer *i, *tmp; |
| |
| list_for_each_entry_safe(i, tmp, head, list) { |
| list_del(&i->list); |
| kfree(i); |
| } |
| } |
| |
| static void ath10k_debug_fw_stats_reset(struct ath10k *ar) |
| { |
| spin_lock_bh(&ar->data_lock); |
| ar->debug.fw_stats_done = false; |
| ath10k_debug_fw_stats_pdevs_free(&ar->debug.fw_stats.pdevs); |
| ath10k_debug_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs); |
| ath10k_debug_fw_stats_peers_free(&ar->debug.fw_stats.peers); |
| spin_unlock_bh(&ar->data_lock); |
| } |
| |
| static size_t ath10k_debug_fw_stats_num_peers(struct list_head *head) |
| { |
| struct ath10k_fw_stats_peer *i; |
| size_t num = 0; |
| |
| list_for_each_entry(i, head, list) |
| ++num; |
| |
| return num; |
| } |
| |
| static size_t ath10k_debug_fw_stats_num_vdevs(struct list_head *head) |
| { |
| struct ath10k_fw_stats_vdev *i; |
| size_t num = 0; |
| |
| list_for_each_entry(i, head, list) |
| ++num; |
| |
| return num; |
| } |
| |
| void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb) |
| { |
| struct ath10k_fw_stats stats = {}; |
| bool is_start, is_started, is_end; |
| size_t num_peers; |
| size_t num_vdevs; |
| int ret; |
| |
| INIT_LIST_HEAD(&stats.pdevs); |
| INIT_LIST_HEAD(&stats.vdevs); |
| INIT_LIST_HEAD(&stats.peers); |
| |
| spin_lock_bh(&ar->data_lock); |
| ret = ath10k_wmi_pull_fw_stats(ar, skb, &stats); |
| if (ret) { |
| ath10k_warn(ar, "failed to pull fw stats: %d\n", ret); |
| goto unlock; |
| } |
| |
| /* Stat data may exceed htc-wmi buffer limit. In such case firmware |
| * splits the stats data and delivers it in a ping-pong fashion of |
| * request cmd-update event. |
| * |
| * However there is no explicit end-of-data. Instead start-of-data is |
| * used as an implicit one. This works as follows: |
| * a) discard stat update events until one with pdev stats is |
| * delivered - this skips session started at end of (b) |
| * b) consume stat update events until another one with pdev stats is |
| * delivered which is treated as end-of-data and is itself discarded |
| */ |
| |
| if (ar->debug.fw_stats_done) { |
| ath10k_warn(ar, "received unsolicited stats update event\n"); |
| goto free; |
| } |
| |
| num_peers = ath10k_debug_fw_stats_num_peers(&ar->debug.fw_stats.peers); |
| num_vdevs = ath10k_debug_fw_stats_num_vdevs(&ar->debug.fw_stats.vdevs); |
| is_start = (list_empty(&ar->debug.fw_stats.pdevs) && |
| !list_empty(&stats.pdevs)); |
| is_end = (!list_empty(&ar->debug.fw_stats.pdevs) && |
| !list_empty(&stats.pdevs)); |
| |
| if (is_start) |
| list_splice_tail_init(&stats.pdevs, &ar->debug.fw_stats.pdevs); |
| |
| if (is_end) |
| ar->debug.fw_stats_done = true; |
| |
| is_started = !list_empty(&ar->debug.fw_stats.pdevs); |
| |
| if (is_started && !is_end) { |
| if (num_peers >= ATH10K_MAX_NUM_PEER_IDS) { |
| /* Although this is unlikely impose a sane limit to |
| * prevent firmware from DoS-ing the host. |
| */ |
| ath10k_warn(ar, "dropping fw peer stats\n"); |
| goto free; |
| } |
| |
| if (num_vdevs >= BITS_PER_LONG) { |
| ath10k_warn(ar, "dropping fw vdev stats\n"); |
| goto free; |
| } |
| |
| list_splice_tail_init(&stats.peers, &ar->debug.fw_stats.peers); |
| list_splice_tail_init(&stats.vdevs, &ar->debug.fw_stats.vdevs); |
| } |
| |
| complete(&ar->debug.fw_stats_complete); |
| |
| free: |
| /* In some cases lists have been spliced and cleared. Free up |
| * resources if that is not the case. |
| */ |
| ath10k_debug_fw_stats_pdevs_free(&stats.pdevs); |
| ath10k_debug_fw_stats_vdevs_free(&stats.vdevs); |
| ath10k_debug_fw_stats_peers_free(&stats.peers); |
| |
| unlock: |
| spin_unlock_bh(&ar->data_lock); |
| } |
| |
| static int ath10k_debug_fw_stats_request(struct ath10k *ar) |
| { |
| unsigned long timeout, time_left; |
| int ret; |
| |
| lockdep_assert_held(&ar->conf_mutex); |
| |
| timeout = jiffies + msecs_to_jiffies(1 * HZ); |
| |
| ath10k_debug_fw_stats_reset(ar); |
| |
| for (;;) { |
| if (time_after(jiffies, timeout)) |
| return -ETIMEDOUT; |
| |
| reinit_completion(&ar->debug.fw_stats_complete); |
| |
| ret = ath10k_wmi_request_stats(ar, ar->fw_stats_req_mask); |
| if (ret) { |
| ath10k_warn(ar, "could not request stats (%d)\n", ret); |
| return ret; |
| } |
| |
| time_left = |
| wait_for_completion_timeout(&ar->debug.fw_stats_complete, |
| 1 * HZ); |
| if (!time_left) |
| return -ETIMEDOUT; |
| |
| spin_lock_bh(&ar->data_lock); |
| if (ar->debug.fw_stats_done) { |
| spin_unlock_bh(&ar->data_lock); |
| break; |
| } |
| spin_unlock_bh(&ar->data_lock); |
| } |
| |
| return 0; |
| } |
| |
| /* FIXME: How to calculate the buffer size sanely? */ |
| #define ATH10K_FW_STATS_BUF_SIZE (1024*1024) |
| |
| static void ath10k_fw_stats_fill(struct ath10k *ar, |
| struct ath10k_fw_stats *fw_stats, |
| char *buf) |
| { |
| unsigned int len = 0; |
| unsigned int buf_len = ATH10K_FW_STATS_BUF_SIZE; |
| const struct ath10k_fw_stats_pdev *pdev; |
| const struct ath10k_fw_stats_vdev *vdev; |
| const struct ath10k_fw_stats_peer *peer; |
| size_t num_peers; |
| size_t num_vdevs; |
| int i; |
| |
| spin_lock_bh(&ar->data_lock); |
| |
| pdev = list_first_entry_or_null(&fw_stats->pdevs, |
| struct ath10k_fw_stats_pdev, list); |
| if (!pdev) { |
| ath10k_warn(ar, "failed to get pdev stats\n"); |
| goto unlock; |
| } |
| |
| num_peers = ath10k_debug_fw_stats_num_peers(&fw_stats->peers); |
| num_vdevs = ath10k_debug_fw_stats_num_vdevs(&fw_stats->vdevs); |
| |
| len += scnprintf(buf + len, buf_len - len, "\n"); |
| len += scnprintf(buf + len, buf_len - len, "%30s\n", |
| "ath10k PDEV stats"); |
| len += scnprintf(buf + len, buf_len - len, "%30s\n\n", |
| "================="); |
| |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "Channel noise floor", pdev->ch_noise_floor); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", |
| "Channel TX power", pdev->chan_tx_power); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", |
| "TX frame count", pdev->tx_frame_count); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", |
| "RX frame count", pdev->rx_frame_count); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", |
| "RX clear count", pdev->rx_clear_count); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", |
| "Cycle count", pdev->cycle_count); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", |
| "PHY error count", pdev->phy_err_count); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", |
| "RTS bad count", pdev->rts_bad); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", |
| "RTS good count", pdev->rts_good); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", |
| "FCS bad count", pdev->fcs_bad); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", |
| "No beacon count", pdev->no_beacons); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", |
| "MIB int count", pdev->mib_int_count); |
| |
| len += scnprintf(buf + len, buf_len - len, "\n"); |
| len += scnprintf(buf + len, buf_len - len, "%30s\n", |
| "ath10k PDEV TX stats"); |
| len += scnprintf(buf + len, buf_len - len, "%30s\n\n", |
| "================="); |
| |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "HTT cookies queued", pdev->comp_queued); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "HTT cookies disp.", pdev->comp_delivered); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "MSDU queued", pdev->msdu_enqued); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "MPDU queued", pdev->mpdu_enqued); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "MSDUs dropped", pdev->wmm_drop); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "Local enqued", pdev->local_enqued); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "Local freed", pdev->local_freed); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "HW queued", pdev->hw_queued); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "PPDUs reaped", pdev->hw_reaped); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "Num underruns", pdev->underrun); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "PPDUs cleaned", pdev->tx_abort); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "MPDUs requed", pdev->mpdus_requed); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "Excessive retries", pdev->tx_ko); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "HW rate", pdev->data_rc); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "Sched self tiggers", pdev->self_triggers); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "Dropped due to SW retries", |
| pdev->sw_retry_failure); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "Illegal rate phy errors", |
| pdev->illgl_rate_phy_err); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "Pdev continous xretry", pdev->pdev_cont_xretry); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "TX timeout", pdev->pdev_tx_timeout); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "PDEV resets", pdev->pdev_resets); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "PHY underrun", pdev->phy_underrun); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "MPDU is more than txop limit", pdev->txop_ovf); |
| |
| len += scnprintf(buf + len, buf_len - len, "\n"); |
| len += scnprintf(buf + len, buf_len - len, "%30s\n", |
| "ath10k PDEV RX stats"); |
| len += scnprintf(buf + len, buf_len - len, "%30s\n\n", |
| "================="); |
| |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "Mid PPDU route change", |
| pdev->mid_ppdu_route_change); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "Tot. number of statuses", pdev->status_rcvd); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "Extra frags on rings 0", pdev->r0_frags); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "Extra frags on rings 1", pdev->r1_frags); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "Extra frags on rings 2", pdev->r2_frags); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "Extra frags on rings 3", pdev->r3_frags); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "MSDUs delivered to HTT", pdev->htt_msdus); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "MPDUs delivered to HTT", pdev->htt_mpdus); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "MSDUs delivered to stack", pdev->loc_msdus); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "MPDUs delivered to stack", pdev->loc_mpdus); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "Oversized AMSUs", pdev->oversize_amsdu); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "PHY errors", pdev->phy_errs); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "PHY errors drops", pdev->phy_err_drop); |
| len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", |
| "MPDU errors (FCS, MIC, ENC)", pdev->mpdu_errs); |
| |
| len += scnprintf(buf + len, buf_len - len, "\n"); |
| len += scnprintf(buf + len, buf_len - len, "%30s (%zu)\n", |
| "ath10k VDEV stats", num_vdevs); |
| len += scnprintf(buf + len, buf_len - len, "%30s\n\n", |
| "================="); |
| |
| list_for_each_entry(vdev, &fw_stats->vdevs, list) { |
| len += scnprintf(buf + len, buf_len - len, "%30s %u\n", |
| "vdev id", vdev->vdev_id); |
| len += scnprintf(buf + len, buf_len - len, "%30s %u\n", |
| "beacon snr", vdev->beacon_snr); |
| len += scnprintf(buf + len, buf_len - len, "%30s %u\n", |
| "data snr", vdev->data_snr); |
| len += scnprintf(buf + len, buf_len - len, "%30s %u\n", |
| "num rx frames", vdev->num_rx_frames); |
| len += scnprintf(buf + len, buf_len - len, "%30s %u\n", |
| "num rts fail", vdev->num_rts_fail); |
| len += scnprintf(buf + len, buf_len - len, "%30s %u\n", |
| "num rts success", vdev->num_rts_success); |
| len += scnprintf(buf + len, buf_len - len, "%30s %u\n", |
| "num rx err", vdev->num_rx_err); |
| len += scnprintf(buf + len, buf_len - len, "%30s %u\n", |
| "num rx discard", vdev->num_rx_discard); |
| len += scnprintf(buf + len, buf_len - len, "%30s %u\n", |
| "num tx not acked", vdev->num_tx_not_acked); |
| |
| for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames); i++) |
| len += scnprintf(buf + len, buf_len - len, |
| "%25s [%02d] %u\n", |
| "num tx frames", i, |
| vdev->num_tx_frames[i]); |
| |
| for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames_retries); i++) |
| len += scnprintf(buf + len, buf_len - len, |
| "%25s [%02d] %u\n", |
| "num tx frames retries", i, |
| vdev->num_tx_frames_retries[i]); |
| |
| for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames_failures); i++) |
| len += scnprintf(buf + len, buf_len - len, |
| "%25s [%02d] %u\n", |
| "num tx frames failures", i, |
| vdev->num_tx_frames_failures[i]); |
| |
| for (i = 0 ; i < ARRAY_SIZE(vdev->tx_rate_history); i++) |
| len += scnprintf(buf + len, buf_len - len, |
| "%25s [%02d] 0x%08x\n", |
| "tx rate history", i, |
| vdev->tx_rate_history[i]); |
| |
| for (i = 0 ; i < ARRAY_SIZE(vdev->beacon_rssi_history); i++) |
| len += scnprintf(buf + len, buf_len - len, |
| "%25s [%02d] %u\n", |
| "beacon rssi history", i, |
| vdev->beacon_rssi_history[i]); |
| |
| len += scnprintf(buf + len, buf_len - len, "\n"); |
| } |
| |
| len += scnprintf(buf + len, buf_len - len, "\n"); |
| len += scnprintf(buf + len, buf_len - len, "%30s (%zu)\n", |
| "ath10k PEER stats", num_peers); |
| len += scnprintf(buf + len, buf_len - len, "%30s\n\n", |
| "================="); |
| |
| list_for_each_entry(peer, &fw_stats->peers, list) { |
| len += scnprintf(buf + len, buf_len - len, "%30s %pM\n", |
| "Peer MAC address", peer->peer_macaddr); |
| len += scnprintf(buf + len, buf_len - len, "%30s %u\n", |
| "Peer RSSI", peer->peer_rssi); |
| len += scnprintf(buf + len, buf_len - len, "%30s %u\n", |
| "Peer TX rate", peer->peer_tx_rate); |
| len += scnprintf(buf + len, buf_len - len, "%30s %u\n", |
| "Peer RX rate", peer->peer_rx_rate); |
| len += scnprintf(buf + len, buf_len - len, "\n"); |
| } |
| |
| unlock: |
| spin_unlock_bh(&ar->data_lock); |
| |
| if (len >= buf_len) |
| buf[len - 1] = 0; |
| else |
| buf[len] = 0; |
| } |
| |
| static int ath10k_fw_stats_open(struct inode *inode, struct file *file) |
| { |
| struct ath10k *ar = inode->i_private; |
| void *buf = NULL; |
| int ret; |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| if (ar->state != ATH10K_STATE_ON) { |
| ret = -ENETDOWN; |
| goto err_unlock; |
| } |
| |
| buf = vmalloc(ATH10K_FW_STATS_BUF_SIZE); |
| if (!buf) { |
| ret = -ENOMEM; |
| goto err_unlock; |
| } |
| |
| ret = ath10k_debug_fw_stats_request(ar); |
| if (ret) { |
| ath10k_warn(ar, "failed to request fw stats: %d\n", ret); |
| goto err_free; |
| } |
| |
| ath10k_fw_stats_fill(ar, &ar->debug.fw_stats, buf); |
| file->private_data = buf; |
| |
| mutex_unlock(&ar->conf_mutex); |
| return 0; |
| |
| err_free: |
| vfree(buf); |
| |
| err_unlock: |
| mutex_unlock(&ar->conf_mutex); |
| return ret; |
| } |
| |
| static int ath10k_fw_stats_release(struct inode *inode, struct file *file) |
| { |
| vfree(file->private_data); |
| |
| return 0; |
| } |
| |
| static ssize_t ath10k_fw_stats_read(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| const char *buf = file->private_data; |
| unsigned int len = strlen(buf); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| } |
| |
| static const struct file_operations fops_fw_stats = { |
| .open = ath10k_fw_stats_open, |
| .release = ath10k_fw_stats_release, |
| .read = ath10k_fw_stats_read, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| static ssize_t ath10k_debug_fw_reset_stats_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| int ret, len, buf_len; |
| char *buf; |
| |
| buf_len = 500; |
| buf = kmalloc(buf_len, GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| |
| spin_lock_bh(&ar->data_lock); |
| |
| len = 0; |
| len += scnprintf(buf + len, buf_len - len, |
| "fw_crash_counter\t\t%d\n", ar->stats.fw_crash_counter); |
| len += scnprintf(buf + len, buf_len - len, |
| "fw_warm_reset_counter\t\t%d\n", |
| ar->stats.fw_warm_reset_counter); |
| len += scnprintf(buf + len, buf_len - len, |
| "fw_cold_reset_counter\t\t%d\n", |
| ar->stats.fw_cold_reset_counter); |
| |
| spin_unlock_bh(&ar->data_lock); |
| |
| ret = simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| |
| kfree(buf); |
| |
| return ret; |
| } |
| |
| static const struct file_operations fops_fw_reset_stats = { |
| .open = simple_open, |
| .read = ath10k_debug_fw_reset_stats_read, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| /* This is a clean assert crash in firmware. */ |
| static int ath10k_debug_fw_assert(struct ath10k *ar) |
| { |
| struct wmi_vdev_install_key_cmd *cmd; |
| struct sk_buff *skb; |
| |
| skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd) + 16); |
| if (!skb) |
| return -ENOMEM; |
| |
| cmd = (struct wmi_vdev_install_key_cmd *)skb->data; |
| memset(cmd, 0, sizeof(*cmd)); |
| |
| /* big enough number so that firmware asserts */ |
| cmd->vdev_id = __cpu_to_le32(0x7ffe); |
| |
| return ath10k_wmi_cmd_send(ar, skb, |
| ar->wmi.cmd->vdev_install_key_cmdid); |
| } |
| |
| static ssize_t ath10k_read_simulate_fw_crash(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| const char buf[] = |
| "To simulate firmware crash write one of the keywords to this file:\n" |
| "`soft` - this will send WMI_FORCE_FW_HANG_ASSERT to firmware if FW supports that command.\n" |
| "`hard` - this will send to firmware command with illegal parameters causing firmware crash.\n" |
| "`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n" |
| "`hw-restart` - this will simply queue hw restart without fw/hw actually crashing.\n"; |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); |
| } |
| |
| /* Simulate firmware crash: |
| * 'soft': Call wmi command causing firmware hang. This firmware hang is |
| * recoverable by warm firmware reset. |
| * 'hard': Force firmware crash by setting any vdev parameter for not allowed |
| * vdev id. This is hard firmware crash because it is recoverable only by cold |
| * firmware reset. |
| */ |
| static ssize_t ath10k_write_simulate_fw_crash(struct file *file, |
| const char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| char buf[32]; |
| int ret; |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count); |
| |
| /* make sure that buf is null terminated */ |
| buf[sizeof(buf) - 1] = 0; |
| |
| if (ar->state != ATH10K_STATE_ON && |
| ar->state != ATH10K_STATE_RESTARTED) { |
| ret = -ENETDOWN; |
| goto exit; |
| } |
| |
| /* drop the possible '\n' from the end */ |
| if (buf[count - 1] == '\n') { |
| buf[count - 1] = 0; |
| count--; |
| } |
| |
| if (!strcmp(buf, "soft")) { |
| ath10k_info(ar, "simulating soft firmware crash\n"); |
| ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0); |
| } else if (!strcmp(buf, "hard")) { |
| ath10k_info(ar, "simulating hard firmware crash\n"); |
| /* 0x7fff is vdev id, and it is always out of range for all |
| * firmware variants in order to force a firmware crash. |
| */ |
| ret = ath10k_wmi_vdev_set_param(ar, 0x7fff, |
| ar->wmi.vdev_param->rts_threshold, |
| 0); |
| } else if (!strcmp(buf, "assert")) { |
| ath10k_info(ar, "simulating firmware assert crash\n"); |
| ret = ath10k_debug_fw_assert(ar); |
| } else if (!strcmp(buf, "hw-restart")) { |
| ath10k_info(ar, "user requested hw restart\n"); |
| queue_work(ar->workqueue, &ar->restart_work); |
| ret = 0; |
| } else { |
| ret = -EINVAL; |
| goto exit; |
| } |
| |
| if (ret) { |
| ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret); |
| goto exit; |
| } |
| |
| ret = count; |
| |
| exit: |
| mutex_unlock(&ar->conf_mutex); |
| return ret; |
| } |
| |
| static const struct file_operations fops_simulate_fw_crash = { |
| .read = ath10k_read_simulate_fw_crash, |
| .write = ath10k_write_simulate_fw_crash, |
| .open = simple_open, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| unsigned int len; |
| char buf[50]; |
| |
| len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| } |
| |
| static const struct file_operations fops_chip_id = { |
| .read = ath10k_read_chip_id, |
| .open = simple_open, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| struct ath10k_fw_crash_data * |
| ath10k_debug_get_new_fw_crash_data(struct ath10k *ar) |
| { |
| struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data; |
| |
| lockdep_assert_held(&ar->data_lock); |
| |
| crash_data->crashed_since_read = true; |
| uuid_le_gen(&crash_data->uuid); |
| getnstimeofday(&crash_data->timestamp); |
| |
| return crash_data; |
| } |
| EXPORT_SYMBOL(ath10k_debug_get_new_fw_crash_data); |
| |
| static struct ath10k_dump_file_data *ath10k_build_dump_file(struct ath10k *ar) |
| { |
| struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data; |
| struct ath10k_dump_file_data *dump_data; |
| struct ath10k_tlv_dump_data *dump_tlv; |
| int hdr_len = sizeof(*dump_data); |
| unsigned int len, sofar = 0; |
| unsigned char *buf; |
| |
| len = hdr_len; |
| len += sizeof(*dump_tlv) + sizeof(crash_data->registers); |
| |
| sofar += hdr_len; |
| |
| /* This is going to get big when we start dumping FW RAM and such, |
| * so go ahead and use vmalloc. |
| */ |
| buf = vzalloc(len); |
| if (!buf) |
| return NULL; |
| |
| spin_lock_bh(&ar->data_lock); |
| |
| if (!crash_data->crashed_since_read) { |
| spin_unlock_bh(&ar->data_lock); |
| vfree(buf); |
| return NULL; |
| } |
| |
| dump_data = (struct ath10k_dump_file_data *)(buf); |
| strlcpy(dump_data->df_magic, "ATH10K-FW-DUMP", |
| sizeof(dump_data->df_magic)); |
| dump_data->len = cpu_to_le32(len); |
| |
| dump_data->version = cpu_to_le32(ATH10K_FW_CRASH_DUMP_VERSION); |
| |
| memcpy(dump_data->uuid, &crash_data->uuid, sizeof(dump_data->uuid)); |
| dump_data->chip_id = cpu_to_le32(ar->chip_id); |
| dump_data->bus_type = cpu_to_le32(0); |
| dump_data->target_version = cpu_to_le32(ar->target_version); |
| dump_data->fw_version_major = cpu_to_le32(ar->fw_version_major); |
| dump_data->fw_version_minor = cpu_to_le32(ar->fw_version_minor); |
| dump_data->fw_version_release = cpu_to_le32(ar->fw_version_release); |
| dump_data->fw_version_build = cpu_to_le32(ar->fw_version_build); |
| dump_data->phy_capability = cpu_to_le32(ar->phy_capability); |
| dump_data->hw_min_tx_power = cpu_to_le32(ar->hw_min_tx_power); |
| dump_data->hw_max_tx_power = cpu_to_le32(ar->hw_max_tx_power); |
| dump_data->ht_cap_info = cpu_to_le32(ar->ht_cap_info); |
| dump_data->vht_cap_info = cpu_to_le32(ar->vht_cap_info); |
| dump_data->num_rf_chains = cpu_to_le32(ar->num_rf_chains); |
| |
| strlcpy(dump_data->fw_ver, ar->hw->wiphy->fw_version, |
| sizeof(dump_data->fw_ver)); |
| |
| dump_data->kernel_ver_code = 0; |
| strlcpy(dump_data->kernel_ver, init_utsname()->release, |
| sizeof(dump_data->kernel_ver)); |
| |
| dump_data->tv_sec = cpu_to_le64(crash_data->timestamp.tv_sec); |
| dump_data->tv_nsec = cpu_to_le64(crash_data->timestamp.tv_nsec); |
| |
| /* Gather crash-dump */ |
| dump_tlv = (struct ath10k_tlv_dump_data *)(buf + sofar); |
| dump_tlv->type = cpu_to_le32(ATH10K_FW_CRASH_DUMP_REGISTERS); |
| dump_tlv->tlv_len = cpu_to_le32(sizeof(crash_data->registers)); |
| memcpy(dump_tlv->tlv_data, &crash_data->registers, |
| sizeof(crash_data->registers)); |
| sofar += sizeof(*dump_tlv) + sizeof(crash_data->registers); |
| |
| ar->debug.fw_crash_data->crashed_since_read = false; |
| |
| spin_unlock_bh(&ar->data_lock); |
| |
| return dump_data; |
| } |
| |
| static int ath10k_fw_crash_dump_open(struct inode *inode, struct file *file) |
| { |
| struct ath10k *ar = inode->i_private; |
| struct ath10k_dump_file_data *dump; |
| |
| dump = ath10k_build_dump_file(ar); |
| if (!dump) |
| return -ENODATA; |
| |
| file->private_data = dump; |
| |
| return 0; |
| } |
| |
| static ssize_t ath10k_fw_crash_dump_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k_dump_file_data *dump_file = file->private_data; |
| |
| return simple_read_from_buffer(user_buf, count, ppos, |
| dump_file, |
| le32_to_cpu(dump_file->len)); |
| } |
| |
| static int ath10k_fw_crash_dump_release(struct inode *inode, |
| struct file *file) |
| { |
| vfree(file->private_data); |
| |
| return 0; |
| } |
| |
| static const struct file_operations fops_fw_crash_dump = { |
| .open = ath10k_fw_crash_dump_open, |
| .read = ath10k_fw_crash_dump_read, |
| .release = ath10k_fw_crash_dump_release, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| static ssize_t ath10k_reg_addr_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| u8 buf[32]; |
| unsigned int len = 0; |
| u32 reg_addr; |
| |
| mutex_lock(&ar->conf_mutex); |
| reg_addr = ar->debug.reg_addr; |
| mutex_unlock(&ar->conf_mutex); |
| |
| len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", reg_addr); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| } |
| |
| static ssize_t ath10k_reg_addr_write(struct file *file, |
| const char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| u32 reg_addr; |
| int ret; |
| |
| ret = kstrtou32_from_user(user_buf, count, 0, ®_addr); |
| if (ret) |
| return ret; |
| |
| if (!IS_ALIGNED(reg_addr, 4)) |
| return -EFAULT; |
| |
| mutex_lock(&ar->conf_mutex); |
| ar->debug.reg_addr = reg_addr; |
| mutex_unlock(&ar->conf_mutex); |
| |
| return count; |
| } |
| |
| static const struct file_operations fops_reg_addr = { |
| .read = ath10k_reg_addr_read, |
| .write = ath10k_reg_addr_write, |
| .open = simple_open, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| static ssize_t ath10k_reg_value_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| u8 buf[48]; |
| unsigned int len; |
| u32 reg_addr, reg_val; |
| int ret; |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| if (ar->state != ATH10K_STATE_ON && |
| ar->state != ATH10K_STATE_UTF) { |
| ret = -ENETDOWN; |
| goto exit; |
| } |
| |
| reg_addr = ar->debug.reg_addr; |
| |
| reg_val = ath10k_hif_read32(ar, reg_addr); |
| len = scnprintf(buf, sizeof(buf), "0x%08x:0x%08x\n", reg_addr, reg_val); |
| |
| ret = simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| |
| exit: |
| mutex_unlock(&ar->conf_mutex); |
| |
| return ret; |
| } |
| |
| static ssize_t ath10k_reg_value_write(struct file *file, |
| const char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| u32 reg_addr, reg_val; |
| int ret; |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| if (ar->state != ATH10K_STATE_ON && |
| ar->state != ATH10K_STATE_UTF) { |
| ret = -ENETDOWN; |
| goto exit; |
| } |
| |
| reg_addr = ar->debug.reg_addr; |
| |
| ret = kstrtou32_from_user(user_buf, count, 0, ®_val); |
| if (ret) |
| goto exit; |
| |
| ath10k_hif_write32(ar, reg_addr, reg_val); |
| |
| ret = count; |
| |
| exit: |
| mutex_unlock(&ar->conf_mutex); |
| |
| return ret; |
| } |
| |
| static const struct file_operations fops_reg_value = { |
| .read = ath10k_reg_value_read, |
| .write = ath10k_reg_value_write, |
| .open = simple_open, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| static ssize_t ath10k_mem_value_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| u8 *buf; |
| int ret; |
| |
| if (*ppos < 0) |
| return -EINVAL; |
| |
| if (!count) |
| return 0; |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| buf = vmalloc(count); |
| if (!buf) { |
| ret = -ENOMEM; |
| goto exit; |
| } |
| |
| if (ar->state != ATH10K_STATE_ON && |
| ar->state != ATH10K_STATE_UTF) { |
| ret = -ENETDOWN; |
| goto exit; |
| } |
| |
| ret = ath10k_hif_diag_read(ar, *ppos, buf, count); |
| if (ret) { |
| ath10k_warn(ar, "failed to read address 0x%08x via diagnose window fnrom debugfs: %d\n", |
| (u32)(*ppos), ret); |
| goto exit; |
| } |
| |
| ret = copy_to_user(user_buf, buf, count); |
| if (ret) { |
| ret = -EFAULT; |
| goto exit; |
| } |
| |
| count -= ret; |
| *ppos += count; |
| ret = count; |
| |
| exit: |
| vfree(buf); |
| mutex_unlock(&ar->conf_mutex); |
| |
| return ret; |
| } |
| |
| static ssize_t ath10k_mem_value_write(struct file *file, |
| const char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| u8 *buf; |
| int ret; |
| |
| if (*ppos < 0) |
| return -EINVAL; |
| |
| if (!count) |
| return 0; |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| buf = vmalloc(count); |
| if (!buf) { |
| ret = -ENOMEM; |
| goto exit; |
| } |
| |
| if (ar->state != ATH10K_STATE_ON && |
| ar->state != ATH10K_STATE_UTF) { |
| ret = -ENETDOWN; |
| goto exit; |
| } |
| |
| ret = copy_from_user(buf, user_buf, count); |
| if (ret) { |
| ret = -EFAULT; |
| goto exit; |
| } |
| |
| ret = ath10k_hif_diag_write(ar, *ppos, buf, count); |
| if (ret) { |
| ath10k_warn(ar, "failed to write address 0x%08x via diagnose window from debugfs: %d\n", |
| (u32)(*ppos), ret); |
| goto exit; |
| } |
| |
| *ppos += count; |
| ret = count; |
| |
| exit: |
| vfree(buf); |
| mutex_unlock(&ar->conf_mutex); |
| |
| return ret; |
| } |
| |
| static const struct file_operations fops_mem_value = { |
| .read = ath10k_mem_value_read, |
| .write = ath10k_mem_value_write, |
| .open = simple_open, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| static int ath10k_debug_htt_stats_req(struct ath10k *ar) |
| { |
| u64 cookie; |
| int ret; |
| |
| lockdep_assert_held(&ar->conf_mutex); |
| |
| if (ar->debug.htt_stats_mask == 0) |
| /* htt stats are disabled */ |
| return 0; |
| |
| if (ar->state != ATH10K_STATE_ON) |
| return 0; |
| |
| cookie = get_jiffies_64(); |
| |
| ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask, |
| cookie); |
| if (ret) { |
| ath10k_warn(ar, "failed to send htt stats request: %d\n", ret); |
| return ret; |
| } |
| |
| queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork, |
| msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL)); |
| |
| return 0; |
| } |
| |
| static void ath10k_debug_htt_stats_dwork(struct work_struct *work) |
| { |
| struct ath10k *ar = container_of(work, struct ath10k, |
| debug.htt_stats_dwork.work); |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| ath10k_debug_htt_stats_req(ar); |
| |
| mutex_unlock(&ar->conf_mutex); |
| } |
| |
| static ssize_t ath10k_read_htt_stats_mask(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| char buf[32]; |
| unsigned int len; |
| |
| len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| } |
| |
| static ssize_t ath10k_write_htt_stats_mask(struct file *file, |
| const char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| unsigned long mask; |
| int ret; |
| |
| ret = kstrtoul_from_user(user_buf, count, 0, &mask); |
| if (ret) |
| return ret; |
| |
| /* max 8 bit masks (for now) */ |
| if (mask > 0xff) |
| return -E2BIG; |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| ar->debug.htt_stats_mask = mask; |
| |
| ret = ath10k_debug_htt_stats_req(ar); |
| if (ret) |
| goto out; |
| |
| ret = count; |
| |
| out: |
| mutex_unlock(&ar->conf_mutex); |
| |
| return ret; |
| } |
| |
| static const struct file_operations fops_htt_stats_mask = { |
| .read = ath10k_read_htt_stats_mask, |
| .write = ath10k_write_htt_stats_mask, |
| .open = simple_open, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| char buf[64]; |
| u8 amsdu = 3, ampdu = 64; |
| unsigned int len; |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| amsdu = ar->htt.max_num_amsdu; |
| ampdu = ar->htt.max_num_ampdu; |
| mutex_unlock(&ar->conf_mutex); |
| |
| len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| } |
| |
| static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file, |
| const char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| int res; |
| char buf[64]; |
| unsigned int amsdu, ampdu; |
| |
| simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count); |
| |
| /* make sure that buf is null terminated */ |
| buf[sizeof(buf) - 1] = 0; |
| |
| res = sscanf(buf, "%u %u", &amsdu, &du); |
| |
| if (res != 2) |
| return -EINVAL; |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu); |
| if (res) |
| goto out; |
| |
| res = count; |
| ar->htt.max_num_amsdu = amsdu; |
| ar->htt.max_num_ampdu = ampdu; |
| |
| out: |
| mutex_unlock(&ar->conf_mutex); |
| return res; |
| } |
| |
| static const struct file_operations fops_htt_max_amsdu_ampdu = { |
| .read = ath10k_read_htt_max_amsdu_ampdu, |
| .write = ath10k_write_htt_max_amsdu_ampdu, |
| .open = simple_open, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| static ssize_t ath10k_read_fw_dbglog(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| unsigned int len; |
| char buf[64]; |
| |
| len = scnprintf(buf, sizeof(buf), "0x%08x %u\n", |
| ar->debug.fw_dbglog_mask, ar->debug.fw_dbglog_level); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| } |
| |
| static ssize_t ath10k_write_fw_dbglog(struct file *file, |
| const char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| int ret; |
| char buf[64]; |
| unsigned int log_level, mask; |
| |
| simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count); |
| |
| /* make sure that buf is null terminated */ |
| buf[sizeof(buf) - 1] = 0; |
| |
| ret = sscanf(buf, "%x %u", &mask, &log_level); |
| |
| if (!ret) |
| return -EINVAL; |
| |
| if (ret == 1) |
| /* default if user did not specify */ |
| log_level = ATH10K_DBGLOG_LEVEL_WARN; |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| ar->debug.fw_dbglog_mask = mask; |
| ar->debug.fw_dbglog_level = log_level; |
| |
| if (ar->state == ATH10K_STATE_ON) { |
| ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask, |
| ar->debug.fw_dbglog_level); |
| if (ret) { |
| ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n", |
| ret); |
| goto exit; |
| } |
| } |
| |
| ret = count; |
| |
| exit: |
| mutex_unlock(&ar->conf_mutex); |
| |
| return ret; |
| } |
| |
| /* TODO: Would be nice to always support ethtool stats, would need to |
| * move the stats storage out of ath10k_debug, or always have ath10k_debug |
| * struct available.. |
| */ |
| |
| /* This generally cooresponds to the debugfs fw_stats file */ |
| static const char ath10k_gstrings_stats[][ETH_GSTRING_LEN] = { |
| "tx_pkts_nic", |
| "tx_bytes_nic", |
| "rx_pkts_nic", |
| "rx_bytes_nic", |
| "d_noise_floor", |
| "d_cycle_count", |
| "d_phy_error", |
| "d_rts_bad", |
| "d_rts_good", |
| "d_tx_power", /* in .5 dbM I think */ |
| "d_rx_crc_err", /* fcs_bad */ |
| "d_no_beacon", |
| "d_tx_mpdus_queued", |
| "d_tx_msdu_queued", |
| "d_tx_msdu_dropped", |
| "d_local_enqued", |
| "d_local_freed", |
| "d_tx_ppdu_hw_queued", |
| "d_tx_ppdu_reaped", |
| "d_tx_fifo_underrun", |
| "d_tx_ppdu_abort", |
| "d_tx_mpdu_requed", |
| "d_tx_excessive_retries", |
| "d_tx_hw_rate", |
| "d_tx_dropped_sw_retries", |
| "d_tx_illegal_rate", |
| "d_tx_continuous_xretries", |
| "d_tx_timeout", |
| "d_tx_mpdu_txop_limit", |
| "d_pdev_resets", |
| "d_rx_mid_ppdu_route_change", |
| "d_rx_status", |
| "d_rx_extra_frags_ring0", |
| "d_rx_extra_frags_ring1", |
| "d_rx_extra_frags_ring2", |
| "d_rx_extra_frags_ring3", |
| "d_rx_msdu_htt", |
| "d_rx_mpdu_htt", |
| "d_rx_msdu_stack", |
| "d_rx_mpdu_stack", |
| "d_rx_phy_err", |
| "d_rx_phy_err_drops", |
| "d_rx_mpdu_errors", /* FCS, MIC, ENC */ |
| "d_fw_crash_count", |
| "d_fw_warm_reset_count", |
| "d_fw_cold_reset_count", |
| }; |
| |
| #define ATH10K_SSTATS_LEN ARRAY_SIZE(ath10k_gstrings_stats) |
| |
| void ath10k_debug_get_et_strings(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| u32 sset, u8 *data) |
| { |
| if (sset == ETH_SS_STATS) |
| memcpy(data, *ath10k_gstrings_stats, |
| sizeof(ath10k_gstrings_stats)); |
| } |
| |
| int ath10k_debug_get_et_sset_count(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, int sset) |
| { |
| if (sset == ETH_SS_STATS) |
| return ATH10K_SSTATS_LEN; |
| |
| return 0; |
| } |
| |
| void ath10k_debug_get_et_stats(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ethtool_stats *stats, u64 *data) |
| { |
| struct ath10k *ar = hw->priv; |
| static const struct ath10k_fw_stats_pdev zero_stats = {}; |
| const struct ath10k_fw_stats_pdev *pdev_stats; |
| int i = 0, ret; |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| if (ar->state == ATH10K_STATE_ON) { |
| ret = ath10k_debug_fw_stats_request(ar); |
| if (ret) { |
| /* just print a warning and try to use older results */ |
| ath10k_warn(ar, |
| "failed to get fw stats for ethtool: %d\n", |
| ret); |
| } |
| } |
| |
| pdev_stats = list_first_entry_or_null(&ar->debug.fw_stats.pdevs, |
| struct ath10k_fw_stats_pdev, |
| list); |
| if (!pdev_stats) { |
| /* no results available so just return zeroes */ |
| pdev_stats = &zero_stats; |
| } |
| |
| spin_lock_bh(&ar->data_lock); |
| |
| data[i++] = pdev_stats->hw_reaped; /* ppdu reaped */ |
| data[i++] = 0; /* tx bytes */ |
| data[i++] = pdev_stats->htt_mpdus; |
| data[i++] = 0; /* rx bytes */ |
| data[i++] = pdev_stats->ch_noise_floor; |
| data[i++] = pdev_stats->cycle_count; |
| data[i++] = pdev_stats->phy_err_count; |
| data[i++] = pdev_stats->rts_bad; |
| data[i++] = pdev_stats->rts_good; |
| data[i++] = pdev_stats->chan_tx_power; |
| data[i++] = pdev_stats->fcs_bad; |
| data[i++] = pdev_stats->no_beacons; |
| data[i++] = pdev_stats->mpdu_enqued; |
| data[i++] = pdev_stats->msdu_enqued; |
| data[i++] = pdev_stats->wmm_drop; |
| data[i++] = pdev_stats->local_enqued; |
| data[i++] = pdev_stats->local_freed; |
| data[i++] = pdev_stats->hw_queued; |
| data[i++] = pdev_stats->hw_reaped; |
| data[i++] = pdev_stats->underrun; |
| data[i++] = pdev_stats->tx_abort; |
| data[i++] = pdev_stats->mpdus_requed; |
| data[i++] = pdev_stats->tx_ko; |
| data[i++] = pdev_stats->data_rc; |
| data[i++] = pdev_stats->sw_retry_failure; |
| data[i++] = pdev_stats->illgl_rate_phy_err; |
| data[i++] = pdev_stats->pdev_cont_xretry; |
| data[i++] = pdev_stats->pdev_tx_timeout; |
| data[i++] = pdev_stats->txop_ovf; |
| data[i++] = pdev_stats->pdev_resets; |
| data[i++] = pdev_stats->mid_ppdu_route_change; |
| data[i++] = pdev_stats->status_rcvd; |
| data[i++] = pdev_stats->r0_frags; |
| data[i++] = pdev_stats->r1_frags; |
| data[i++] = pdev_stats->r2_frags; |
| data[i++] = pdev_stats->r3_frags; |
| data[i++] = pdev_stats->htt_msdus; |
| data[i++] = pdev_stats->htt_mpdus; |
| data[i++] = pdev_stats->loc_msdus; |
| data[i++] = pdev_stats->loc_mpdus; |
| data[i++] = pdev_stats->phy_errs; |
| data[i++] = pdev_stats->phy_err_drop; |
| data[i++] = pdev_stats->mpdu_errs; |
| data[i++] = ar->stats.fw_crash_counter; |
| data[i++] = ar->stats.fw_warm_reset_counter; |
| data[i++] = ar->stats.fw_cold_reset_counter; |
| |
| spin_unlock_bh(&ar->data_lock); |
| |
| mutex_unlock(&ar->conf_mutex); |
| |
| WARN_ON(i != ATH10K_SSTATS_LEN); |
| } |
| |
| static const struct file_operations fops_fw_dbglog = { |
| .read = ath10k_read_fw_dbglog, |
| .write = ath10k_write_fw_dbglog, |
| .open = simple_open, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file) |
| { |
| struct ath10k *ar = inode->i_private; |
| void *buf; |
| u32 hi_addr; |
| __le32 addr; |
| int ret; |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| if (ar->state != ATH10K_STATE_ON && |
| ar->state != ATH10K_STATE_UTF) { |
| ret = -ENETDOWN; |
| goto err; |
| } |
| |
| buf = vmalloc(QCA988X_CAL_DATA_LEN); |
| if (!buf) { |
| ret = -ENOMEM; |
| goto err; |
| } |
| |
| hi_addr = host_interest_item_address(HI_ITEM(hi_board_data)); |
| |
| ret = ath10k_hif_diag_read(ar, hi_addr, &addr, sizeof(addr)); |
| if (ret) { |
| ath10k_warn(ar, "failed to read hi_board_data address: %d\n", ret); |
| goto err_vfree; |
| } |
| |
| ret = ath10k_hif_diag_read(ar, le32_to_cpu(addr), buf, |
| QCA988X_CAL_DATA_LEN); |
| if (ret) { |
| ath10k_warn(ar, "failed to read calibration data: %d\n", ret); |
| goto err_vfree; |
| } |
| |
| file->private_data = buf; |
| |
| mutex_unlock(&ar->conf_mutex); |
| |
| return 0; |
| |
| err_vfree: |
| vfree(buf); |
| |
| err: |
| mutex_unlock(&ar->conf_mutex); |
| |
| return ret; |
| } |
| |
| static ssize_t ath10k_debug_cal_data_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| void *buf = file->private_data; |
| |
| return simple_read_from_buffer(user_buf, count, ppos, |
| buf, QCA988X_CAL_DATA_LEN); |
| } |
| |
| static int ath10k_debug_cal_data_release(struct inode *inode, |
| struct file *file) |
| { |
| vfree(file->private_data); |
| |
| return 0; |
| } |
| |
| static ssize_t ath10k_write_ani_enable(struct file *file, |
| const char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| int ret; |
| u8 enable; |
| |
| if (kstrtou8_from_user(user_buf, count, 0, &enable)) |
| return -EINVAL; |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| if (ar->ani_enabled == enable) { |
| ret = count; |
| goto exit; |
| } |
| |
| ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->ani_enable, |
| enable); |
| if (ret) { |
| ath10k_warn(ar, "ani_enable failed from debugfs: %d\n", ret); |
| goto exit; |
| } |
| ar->ani_enabled = enable; |
| |
| ret = count; |
| |
| exit: |
| mutex_unlock(&ar->conf_mutex); |
| |
| return ret; |
| } |
| |
| static ssize_t ath10k_read_ani_enable(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| int len = 0; |
| char buf[32]; |
| |
| len = scnprintf(buf, sizeof(buf) - len, "%d\n", |
| ar->ani_enabled); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| } |
| |
| static const struct file_operations fops_ani_enable = { |
| .read = ath10k_read_ani_enable, |
| .write = ath10k_write_ani_enable, |
| .open = simple_open, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| static const struct file_operations fops_cal_data = { |
| .open = ath10k_debug_cal_data_open, |
| .read = ath10k_debug_cal_data_read, |
| .release = ath10k_debug_cal_data_release, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| static ssize_t ath10k_read_nf_cal_period(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| unsigned int len; |
| char buf[32]; |
| |
| len = scnprintf(buf, sizeof(buf), "%d\n", |
| ar->debug.nf_cal_period); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| } |
| |
| static ssize_t ath10k_write_nf_cal_period(struct file *file, |
| const char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| unsigned long period; |
| int ret; |
| |
| ret = kstrtoul_from_user(user_buf, count, 0, &period); |
| if (ret) |
| return ret; |
| |
| if (period > WMI_PDEV_PARAM_CAL_PERIOD_MAX) |
| return -EINVAL; |
| |
| /* there's no way to switch back to the firmware default */ |
| if (period == 0) |
| return -EINVAL; |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| ar->debug.nf_cal_period = period; |
| |
| if (ar->state != ATH10K_STATE_ON) { |
| /* firmware is not running, nothing else to do */ |
| ret = count; |
| goto exit; |
| } |
| |
| ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->cal_period, |
| ar->debug.nf_cal_period); |
| if (ret) { |
| ath10k_warn(ar, "cal period cfg failed from debugfs: %d\n", |
| ret); |
| goto exit; |
| } |
| |
| ret = count; |
| |
| exit: |
| mutex_unlock(&ar->conf_mutex); |
| |
| return ret; |
| } |
| |
| static const struct file_operations fops_nf_cal_period = { |
| .read = ath10k_read_nf_cal_period, |
| .write = ath10k_write_nf_cal_period, |
| .open = simple_open, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| int ath10k_debug_start(struct ath10k *ar) |
| { |
| int ret; |
| |
| lockdep_assert_held(&ar->conf_mutex); |
| |
| ret = ath10k_debug_htt_stats_req(ar); |
| if (ret) |
| /* continue normally anyway, this isn't serious */ |
| ath10k_warn(ar, "failed to start htt stats workqueue: %d\n", |
| ret); |
| |
| if (ar->debug.fw_dbglog_mask) { |
| ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask, |
| ATH10K_DBGLOG_LEVEL_WARN); |
| if (ret) |
| /* not serious */ |
| ath10k_warn(ar, "failed to enable dbglog during start: %d", |
| ret); |
| } |
| |
| if (ar->debug.pktlog_filter) { |
| ret = ath10k_wmi_pdev_pktlog_enable(ar, |
| ar->debug.pktlog_filter); |
| if (ret) |
| /* not serious */ |
| ath10k_warn(ar, |
| "failed to enable pktlog filter %x: %d\n", |
| ar->debug.pktlog_filter, ret); |
| } else { |
| ret = ath10k_wmi_pdev_pktlog_disable(ar); |
| if (ret) |
| /* not serious */ |
| ath10k_warn(ar, "failed to disable pktlog: %d\n", ret); |
| } |
| |
| if (ar->debug.nf_cal_period) { |
| ret = ath10k_wmi_pdev_set_param(ar, |
| ar->wmi.pdev_param->cal_period, |
| ar->debug.nf_cal_period); |
| if (ret) |
| /* not serious */ |
| ath10k_warn(ar, "cal period cfg failed from debug start: %d\n", |
| ret); |
| } |
| |
| return ret; |
| } |
| |
| void ath10k_debug_stop(struct ath10k *ar) |
| { |
| lockdep_assert_held(&ar->conf_mutex); |
| |
| /* Must not use _sync to avoid deadlock, we do that in |
| * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid |
| * warning from del_timer(). */ |
| if (ar->debug.htt_stats_mask != 0) |
| cancel_delayed_work(&ar->debug.htt_stats_dwork); |
| |
| ath10k_wmi_pdev_pktlog_disable(ar); |
| } |
| |
| static ssize_t ath10k_write_simulate_radar(struct file *file, |
| const char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| |
| ieee80211_radar_detected(ar->hw); |
| |
| return count; |
| } |
| |
| static const struct file_operations fops_simulate_radar = { |
| .write = ath10k_write_simulate_radar, |
| .open = simple_open, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| #define ATH10K_DFS_STAT(s, p) (\ |
| len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \ |
| ar->debug.dfs_stats.p)) |
| |
| #define ATH10K_DFS_POOL_STAT(s, p) (\ |
| len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \ |
| ar->debug.dfs_pool_stats.p)) |
| |
| static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| int retval = 0, len = 0; |
| const int size = 8000; |
| struct ath10k *ar = file->private_data; |
| char *buf; |
| |
| buf = kzalloc(size, GFP_KERNEL); |
| if (buf == NULL) |
| return -ENOMEM; |
| |
| if (!ar->dfs_detector) { |
| len += scnprintf(buf + len, size - len, "DFS not enabled\n"); |
| goto exit; |
| } |
| |
| ar->debug.dfs_pool_stats = |
| ar->dfs_detector->get_stats(ar->dfs_detector); |
| |
| len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n"); |
| |
| ATH10K_DFS_STAT("reported phy errors", phy_errors); |
| ATH10K_DFS_STAT("pulse events reported", pulses_total); |
| ATH10K_DFS_STAT("DFS pulses detected", pulses_detected); |
| ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded); |
| ATH10K_DFS_STAT("Radars detected", radar_detected); |
| |
| len += scnprintf(buf + len, size - len, "Global Pool statistics:\n"); |
| ATH10K_DFS_POOL_STAT("Pool references", pool_reference); |
| ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated); |
| ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error); |
| ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used); |
| ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated); |
| ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error); |
| ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used); |
| |
| exit: |
| if (len > size) |
| len = size; |
| |
| retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| kfree(buf); |
| |
| return retval; |
| } |
| |
| static const struct file_operations fops_dfs_stats = { |
| .read = ath10k_read_dfs_stats, |
| .open = simple_open, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| static ssize_t ath10k_write_pktlog_filter(struct file *file, |
| const char __user *ubuf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| u32 filter; |
| int ret; |
| |
| if (kstrtouint_from_user(ubuf, count, 0, &filter)) |
| return -EINVAL; |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| if (ar->state != ATH10K_STATE_ON) { |
| ar->debug.pktlog_filter = filter; |
| ret = count; |
| goto out; |
| } |
| |
| if (filter && (filter != ar->debug.pktlog_filter)) { |
| ret = ath10k_wmi_pdev_pktlog_enable(ar, filter); |
| if (ret) { |
| ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n", |
| ar->debug.pktlog_filter, ret); |
| goto out; |
| } |
| } else { |
| ret = ath10k_wmi_pdev_pktlog_disable(ar); |
| if (ret) { |
| ath10k_warn(ar, "failed to disable pktlog: %d\n", ret); |
| goto out; |
| } |
| } |
| |
| ar->debug.pktlog_filter = filter; |
| ret = count; |
| |
| out: |
| mutex_unlock(&ar->conf_mutex); |
| return ret; |
| } |
| |
| static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf, |
| size_t count, loff_t *ppos) |
| { |
| char buf[32]; |
| struct ath10k *ar = file->private_data; |
| int len = 0; |
| |
| mutex_lock(&ar->conf_mutex); |
| len = scnprintf(buf, sizeof(buf) - len, "%08x\n", |
| ar->debug.pktlog_filter); |
| mutex_unlock(&ar->conf_mutex); |
| |
| return simple_read_from_buffer(ubuf, count, ppos, buf, len); |
| } |
| |
| static const struct file_operations fops_pktlog_filter = { |
| .read = ath10k_read_pktlog_filter, |
| .write = ath10k_write_pktlog_filter, |
| .open = simple_open |
| }; |
| |
| static ssize_t ath10k_write_quiet_period(struct file *file, |
| const char __user *ubuf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath10k *ar = file->private_data; |
| u32 period; |
| |
| if (kstrtouint_from_user(ubuf, count, 0, &period)) |
| return -EINVAL; |
| |
| if (period < ATH10K_QUIET_PERIOD_MIN) { |
| ath10k_warn(ar, "Quiet period %u can not be lesser than 25ms\n", |
| period); |
| return -EINVAL; |
| } |
| mutex_lock(&ar->conf_mutex); |
| ar->thermal.quiet_period = period; |
| ath10k_thermal_set_throttling(ar); |
| mutex_unlock(&ar->conf_mutex); |
| |
| return count; |
| } |
| |
| static ssize_t ath10k_read_quiet_period(struct file *file, char __user *ubuf, |
| size_t count, loff_t *ppos) |
| { |
| char buf[32]; |
| struct ath10k *ar = file->private_data; |
| int len = 0; |
| |
| mutex_lock(&ar->conf_mutex); |
| len = scnprintf(buf, sizeof(buf) - len, "%d\n", |
| ar->thermal.quiet_period); |
| mutex_unlock(&ar->conf_mutex); |
| |
| return simple_read_from_buffer(ubuf, count, ppos, buf, len); |
| } |
| |
| static const struct file_operations fops_quiet_period = { |
| .read = ath10k_read_quiet_period, |
| .write = ath10k_write_quiet_period, |
| .open = simple_open |
| }; |
| |
| int ath10k_debug_create(struct ath10k *ar) |
| { |
| ar->debug.fw_crash_data = vzalloc(sizeof(*ar->debug.fw_crash_data)); |
| if (!ar->debug.fw_crash_data) |
| return -ENOMEM; |
| |
| INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs); |
| INIT_LIST_HEAD(&ar->debug.fw_stats.vdevs); |
| INIT_LIST_HEAD(&ar->debug.fw_stats.peers); |
| |
| return 0; |
| } |
| |
| void ath10k_debug_destroy(struct ath10k *ar) |
| { |
| vfree(ar->debug.fw_crash_data); |
| ar->debug.fw_crash_data = NULL; |
| |
| ath10k_debug_fw_stats_reset(ar); |
| } |
| |
| int ath10k_debug_register(struct ath10k *ar) |
| { |
| ar->debug.debugfs_phy = debugfs_create_dir("ath10k", |
| ar->hw->wiphy->debugfsdir); |
| if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) { |
| if (IS_ERR(ar->debug.debugfs_phy)) |
| return PTR_ERR(ar->debug.debugfs_phy); |
| |
| return -ENOMEM; |
| } |
| |
| INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork, |
| ath10k_debug_htt_stats_dwork); |
| |
| init_completion(&ar->debug.fw_stats_complete); |
| |
| debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar, |
| &fops_fw_stats); |
| |
| debugfs_create_file("fw_reset_stats", S_IRUSR, ar->debug.debugfs_phy, |
| ar, &fops_fw_reset_stats); |
| |
| debugfs_create_file("wmi_services", S_IRUSR, ar->debug.debugfs_phy, ar, |
| &fops_wmi_services); |
| |
| debugfs_create_file("simulate_fw_crash", S_IRUSR, ar->debug.debugfs_phy, |
| ar, &fops_simulate_fw_crash); |
| |
| debugfs_create_file("fw_crash_dump", S_IRUSR, ar->debug.debugfs_phy, |
| ar, &fops_fw_crash_dump); |
| |
| debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR, |
| ar->debug.debugfs_phy, ar, &fops_reg_addr); |
| |
| debugfs_create_file("reg_value", S_IRUSR | S_IWUSR, |
| ar->debug.debugfs_phy, ar, &fops_reg_value); |
| |
| debugfs_create_file("mem_value", S_IRUSR | S_IWUSR, |
| ar->debug.debugfs_phy, ar, &fops_mem_value); |
| |
| debugfs_create_file("chip_id", S_IRUSR, ar->debug.debugfs_phy, |
| ar, &fops_chip_id); |
| |
| debugfs_create_file("htt_stats_mask", S_IRUSR, ar->debug.debugfs_phy, |
| ar, &fops_htt_stats_mask); |
| |
| debugfs_create_file("htt_max_amsdu_ampdu", S_IRUSR | S_IWUSR, |
| ar->debug.debugfs_phy, ar, |
| &fops_htt_max_amsdu_ampdu); |
| |
| debugfs_create_file("fw_dbglog", S_IRUSR, ar->debug.debugfs_phy, |
| ar, &fops_fw_dbglog); |
| |
| debugfs_create_file("cal_data", S_IRUSR, ar->debug.debugfs_phy, |
| ar, &fops_cal_data); |
| |
| debugfs_create_file("ani_enable", S_IRUSR | S_IWUSR, |
| ar->debug.debugfs_phy, ar, &fops_ani_enable); |
| |
| debugfs_create_file("nf_cal_period", S_IRUSR | S_IWUSR, |
| ar->debug.debugfs_phy, ar, &fops_nf_cal_period); |
| |
| if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) { |
| debugfs_create_file("dfs_simulate_radar", S_IWUSR, |
| ar->debug.debugfs_phy, ar, |
| &fops_simulate_radar); |
| |
| debugfs_create_bool("dfs_block_radar_events", S_IWUSR, |
| ar->debug.debugfs_phy, |
| &ar->dfs_block_radar_events); |
| |
| debugfs_create_file("dfs_stats", S_IRUSR, |
| ar->debug.debugfs_phy, ar, |
| &fops_dfs_stats); |
| } |
| |
| debugfs_create_file("pktlog_filter", S_IRUGO | S_IWUSR, |
| ar->debug.debugfs_phy, ar, &fops_pktlog_filter); |
| |
| debugfs_create_file("quiet_period", S_IRUGO | S_IWUSR, |
| ar->debug.debugfs_phy, ar, &fops_quiet_period); |
| |
| return 0; |
| } |
| |
| void ath10k_debug_unregister(struct ath10k *ar) |
| { |
| cancel_delayed_work_sync(&ar->debug.htt_stats_dwork); |
| } |
| |
| #endif /* CONFIG_ATH10K_DEBUGFS */ |
| |
| #ifdef CONFIG_ATH10K_DEBUG |
| void ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask, |
| const char *fmt, ...) |
| { |
| struct va_format vaf; |
| va_list args; |
| |
| va_start(args, fmt); |
| |
| vaf.fmt = fmt; |
| vaf.va = &args; |
| |
| if (ath10k_debug_mask & mask) |
| dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf); |
| |
| trace_ath10k_log_dbg(ar, mask, &vaf); |
| |
| va_end(args); |
| } |
| EXPORT_SYMBOL(ath10k_dbg); |
| |
| void ath10k_dbg_dump(struct ath10k *ar, |
| enum ath10k_debug_mask mask, |
| const char *msg, const char *prefix, |
| const void *buf, size_t len) |
| { |
| char linebuf[256]; |
| unsigned int linebuflen; |
| const void *ptr; |
| |
| if (ath10k_debug_mask & mask) { |
| if (msg) |
| ath10k_dbg(ar, mask, "%s\n", msg); |
| |
| for (ptr = buf; (ptr - buf) < len; ptr += 16) { |
| linebuflen = 0; |
| linebuflen += scnprintf(linebuf + linebuflen, |
| sizeof(linebuf) - linebuflen, |
| "%s%08x: ", |
| (prefix ? prefix : ""), |
| (unsigned int)(ptr - buf)); |
| hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1, |
| linebuf + linebuflen, |
| sizeof(linebuf) - linebuflen, true); |
| dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf); |
| } |
| } |
| |
| /* tracing code doesn't like null strings :/ */ |
| trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "", |
| buf, len); |
| } |
| EXPORT_SYMBOL(ath10k_dbg_dump); |
| |
| #endif /* CONFIG_ATH10K_DEBUG */ |