diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath11k/debugfs.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/debugfs.c | 1129 |
1 files changed, 1129 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath11k/debugfs.c b/drivers/net/wireless/ath/ath11k/debugfs.c new file mode 100644 index 000000000..196314ab4 --- /dev/null +++ b/drivers/net/wireless/ath/ath11k/debugfs.c @@ -0,0 +1,1129 @@ +// SPDX-License-Identifier: BSD-3-Clause-Clear +/* + * Copyright (c) 2018-2020 The Linux Foundation. All rights reserved. + */ + +#include "debugfs.h" + +#include "core.h" +#include "debug.h" +#include "wmi.h" +#include "hal_rx.h" +#include "dp_tx.h" +#include "debugfs_htt_stats.h" +#include "peer.h" + +static const char *htt_bp_umac_ring[HTT_SW_UMAC_RING_IDX_MAX] = { + "REO2SW1_RING", + "REO2SW2_RING", + "REO2SW3_RING", + "REO2SW4_RING", + "WBM2REO_LINK_RING", + "REO2TCL_RING", + "REO2FW_RING", + "RELEASE_RING", + "PPE_RELEASE_RING", + "TCL2TQM_RING", + "TQM_RELEASE_RING", + "REO_RELEASE_RING", + "WBM2SW0_RELEASE_RING", + "WBM2SW1_RELEASE_RING", + "WBM2SW2_RELEASE_RING", + "WBM2SW3_RELEASE_RING", + "REO_CMD_RING", + "REO_STATUS_RING", +}; + +static const char *htt_bp_lmac_ring[HTT_SW_LMAC_RING_IDX_MAX] = { + "FW2RXDMA_BUF_RING", + "FW2RXDMA_STATUS_RING", + "FW2RXDMA_LINK_RING", + "SW2RXDMA_BUF_RING", + "WBM2RXDMA_LINK_RING", + "RXDMA2FW_RING", + "RXDMA2SW_RING", + "RXDMA2RELEASE_RING", + "RXDMA2REO_RING", + "MONITOR_STATUS_RING", + "MONITOR_BUF_RING", + "MONITOR_DESC_RING", + "MONITOR_DEST_RING", +}; + +static void ath11k_fw_stats_pdevs_free(struct list_head *head) +{ + struct ath11k_fw_stats_pdev *i, *tmp; + + list_for_each_entry_safe(i, tmp, head, list) { + list_del(&i->list); + kfree(i); + } +} + +static void ath11k_fw_stats_vdevs_free(struct list_head *head) +{ + struct ath11k_fw_stats_vdev *i, *tmp; + + list_for_each_entry_safe(i, tmp, head, list) { + list_del(&i->list); + kfree(i); + } +} + +static void ath11k_fw_stats_bcn_free(struct list_head *head) +{ + struct ath11k_fw_stats_bcn *i, *tmp; + + list_for_each_entry_safe(i, tmp, head, list) { + list_del(&i->list); + kfree(i); + } +} + +static void ath11k_debugfs_fw_stats_reset(struct ath11k *ar) +{ + spin_lock_bh(&ar->data_lock); + ar->debug.fw_stats_done = false; + ath11k_fw_stats_pdevs_free(&ar->debug.fw_stats.pdevs); + ath11k_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs); + spin_unlock_bh(&ar->data_lock); +} + +void ath11k_debugfs_fw_stats_process(struct ath11k_base *ab, struct sk_buff *skb) +{ + struct ath11k_fw_stats stats = {}; + struct ath11k *ar; + struct ath11k_pdev *pdev; + bool is_end; + static unsigned int num_vdev, num_bcn; + size_t total_vdevs_started = 0; + int i, ret; + + INIT_LIST_HEAD(&stats.pdevs); + INIT_LIST_HEAD(&stats.vdevs); + INIT_LIST_HEAD(&stats.bcn); + + ret = ath11k_wmi_pull_fw_stats(ab, skb, &stats); + if (ret) { + ath11k_warn(ab, "failed to pull fw stats: %d\n", ret); + goto free; + } + + rcu_read_lock(); + ar = ath11k_mac_get_ar_by_pdev_id(ab, stats.pdev_id); + if (!ar) { + rcu_read_unlock(); + ath11k_warn(ab, "failed to get ar for pdev_id %d: %d\n", + stats.pdev_id, ret); + goto free; + } + + spin_lock_bh(&ar->data_lock); + + if (stats.stats_id == WMI_REQUEST_PDEV_STAT) { + list_splice_tail_init(&stats.pdevs, &ar->debug.fw_stats.pdevs); + ar->debug.fw_stats_done = true; + goto complete; + } + + if (stats.stats_id == WMI_REQUEST_VDEV_STAT) { + if (list_empty(&stats.vdevs)) { + ath11k_warn(ab, "empty vdev stats"); + goto complete; + } + /* FW sends all the active VDEV stats irrespective of PDEV, + * hence limit until the count of all VDEVs started + */ + for (i = 0; i < ab->num_radios; i++) { + pdev = rcu_dereference(ab->pdevs_active[i]); + if (pdev && pdev->ar) + total_vdevs_started += ar->num_started_vdevs; + } + + is_end = ((++num_vdev) == total_vdevs_started); + + list_splice_tail_init(&stats.vdevs, + &ar->debug.fw_stats.vdevs); + + if (is_end) { + ar->debug.fw_stats_done = true; + num_vdev = 0; + } + goto complete; + } + + if (stats.stats_id == WMI_REQUEST_BCN_STAT) { + if (list_empty(&stats.bcn)) { + ath11k_warn(ab, "empty bcn stats"); + goto complete; + } + /* Mark end until we reached the count of all started VDEVs + * within the PDEV + */ + is_end = ((++num_bcn) == ar->num_started_vdevs); + + list_splice_tail_init(&stats.bcn, + &ar->debug.fw_stats.bcn); + + if (is_end) { + ar->debug.fw_stats_done = true; + num_bcn = 0; + } + } +complete: + complete(&ar->debug.fw_stats_complete); + rcu_read_unlock(); + spin_unlock_bh(&ar->data_lock); + +free: + ath11k_fw_stats_pdevs_free(&stats.pdevs); + ath11k_fw_stats_vdevs_free(&stats.vdevs); + ath11k_fw_stats_bcn_free(&stats.bcn); +} + +static int ath11k_debugfs_fw_stats_request(struct ath11k *ar, + struct stats_request_params *req_param) +{ + struct ath11k_base *ab = ar->ab; + unsigned long timeout, time_left; + int ret; + + lockdep_assert_held(&ar->conf_mutex); + + /* FW stats can get split when exceeding the stats data buffer limit. + * In that case, since there is no end marking for the back-to-back + * received 'update stats' event, we keep a 3 seconds timeout in case, + * fw_stats_done is not marked yet + */ + timeout = jiffies + msecs_to_jiffies(3 * HZ); + + ath11k_debugfs_fw_stats_reset(ar); + + reinit_completion(&ar->debug.fw_stats_complete); + + ret = ath11k_wmi_send_stats_request_cmd(ar, req_param); + + if (ret) { + ath11k_warn(ab, "could not request fw stats (%d)\n", + ret); + return ret; + } + + time_left = + wait_for_completion_timeout(&ar->debug.fw_stats_complete, + 1 * HZ); + if (!time_left) + return -ETIMEDOUT; + + for (;;) { + if (time_after(jiffies, timeout)) + break; + + 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; +} + +static int ath11k_open_pdev_stats(struct inode *inode, struct file *file) +{ + struct ath11k *ar = inode->i_private; + struct ath11k_base *ab = ar->ab; + struct stats_request_params req_param; + void *buf = NULL; + int ret; + + mutex_lock(&ar->conf_mutex); + + if (ar->state != ATH11K_STATE_ON) { + ret = -ENETDOWN; + goto err_unlock; + } + + buf = vmalloc(ATH11K_FW_STATS_BUF_SIZE); + if (!buf) { + ret = -ENOMEM; + goto err_unlock; + } + + req_param.pdev_id = ar->pdev->pdev_id; + req_param.vdev_id = 0; + req_param.stats_id = WMI_REQUEST_PDEV_STAT; + + ret = ath11k_debugfs_fw_stats_request(ar, &req_param); + if (ret) { + ath11k_warn(ab, "failed to request fw pdev stats: %d\n", ret); + goto err_free; + } + + ath11k_wmi_fw_stats_fill(ar, &ar->debug.fw_stats, req_param.stats_id, + 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 ath11k_release_pdev_stats(struct inode *inode, struct file *file) +{ + vfree(file->private_data); + + return 0; +} + +static ssize_t ath11k_read_pdev_stats(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + const char *buf = file->private_data; + size_t len = strlen(buf); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static const struct file_operations fops_pdev_stats = { + .open = ath11k_open_pdev_stats, + .release = ath11k_release_pdev_stats, + .read = ath11k_read_pdev_stats, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +static int ath11k_open_vdev_stats(struct inode *inode, struct file *file) +{ + struct ath11k *ar = inode->i_private; + struct stats_request_params req_param; + void *buf = NULL; + int ret; + + mutex_lock(&ar->conf_mutex); + + if (ar->state != ATH11K_STATE_ON) { + ret = -ENETDOWN; + goto err_unlock; + } + + buf = vmalloc(ATH11K_FW_STATS_BUF_SIZE); + if (!buf) { + ret = -ENOMEM; + goto err_unlock; + } + + req_param.pdev_id = ar->pdev->pdev_id; + /* VDEV stats is always sent for all active VDEVs from FW */ + req_param.vdev_id = 0; + req_param.stats_id = WMI_REQUEST_VDEV_STAT; + + ret = ath11k_debugfs_fw_stats_request(ar, &req_param); + if (ret) { + ath11k_warn(ar->ab, "failed to request fw vdev stats: %d\n", ret); + goto err_free; + } + + ath11k_wmi_fw_stats_fill(ar, &ar->debug.fw_stats, req_param.stats_id, + 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 ath11k_release_vdev_stats(struct inode *inode, struct file *file) +{ + vfree(file->private_data); + + return 0; +} + +static ssize_t ath11k_read_vdev_stats(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + const char *buf = file->private_data; + size_t len = strlen(buf); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static const struct file_operations fops_vdev_stats = { + .open = ath11k_open_vdev_stats, + .release = ath11k_release_vdev_stats, + .read = ath11k_read_vdev_stats, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +static int ath11k_open_bcn_stats(struct inode *inode, struct file *file) +{ + struct ath11k *ar = inode->i_private; + struct ath11k_vif *arvif; + struct stats_request_params req_param; + void *buf = NULL; + int ret; + + mutex_lock(&ar->conf_mutex); + + if (ar->state != ATH11K_STATE_ON) { + ret = -ENETDOWN; + goto err_unlock; + } + + buf = vmalloc(ATH11K_FW_STATS_BUF_SIZE); + if (!buf) { + ret = -ENOMEM; + goto err_unlock; + } + + req_param.stats_id = WMI_REQUEST_BCN_STAT; + req_param.pdev_id = ar->pdev->pdev_id; + + /* loop all active VDEVs for bcn stats */ + list_for_each_entry(arvif, &ar->arvifs, list) { + if (!arvif->is_up) + continue; + + req_param.vdev_id = arvif->vdev_id; + ret = ath11k_debugfs_fw_stats_request(ar, &req_param); + if (ret) { + ath11k_warn(ar->ab, "failed to request fw bcn stats: %d\n", ret); + goto err_free; + } + } + + ath11k_wmi_fw_stats_fill(ar, &ar->debug.fw_stats, req_param.stats_id, + buf); + + /* since beacon stats request is looped for all active VDEVs, saved fw + * stats is not freed for each request until done for all active VDEVs + */ + spin_lock_bh(&ar->data_lock); + ath11k_fw_stats_bcn_free(&ar->debug.fw_stats.bcn); + spin_unlock_bh(&ar->data_lock); + + 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 ath11k_release_bcn_stats(struct inode *inode, struct file *file) +{ + vfree(file->private_data); + + return 0; +} + +static ssize_t ath11k_read_bcn_stats(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + const char *buf = file->private_data; + size_t len = strlen(buf); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static const struct file_operations fops_bcn_stats = { + .open = ath11k_open_bcn_stats, + .release = ath11k_release_bcn_stats, + .read = ath11k_read_bcn_stats, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +static ssize_t ath11k_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" + "`assert` - this will send WMI_FORCE_FW_HANG_CMDID to firmware to cause assert.\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 ath11k_write_simulate_fw_crash(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath11k_base *ab = file->private_data; + struct ath11k_pdev *pdev; + struct ath11k *ar = ab->pdevs[0].ar; + char buf[32] = {0}; + ssize_t rc; + int i, ret, radioup = 0; + + for (i = 0; i < ab->num_radios; i++) { + pdev = &ab->pdevs[i]; + ar = pdev->ar; + if (ar && ar->state == ATH11K_STATE_ON) { + radioup = 1; + break; + } + } + /* filter partial writes and invalid commands */ + if (*ppos != 0 || count >= sizeof(buf) || count == 0) + return -EINVAL; + + rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count); + if (rc < 0) + return rc; + + /* drop the possible '\n' from the end */ + if (buf[*ppos - 1] == '\n') + buf[*ppos - 1] = '\0'; + + if (radioup == 0) { + ret = -ENETDOWN; + goto exit; + } + + if (!strcmp(buf, "assert")) { + ath11k_info(ab, "simulating firmware assert crash\n"); + ret = ath11k_wmi_force_fw_hang_cmd(ar, + ATH11K_WMI_FW_HANG_ASSERT_TYPE, + ATH11K_WMI_FW_HANG_DELAY); + } else { + ret = -EINVAL; + goto exit; + } + + if (ret) { + ath11k_warn(ab, "failed to simulate firmware crash: %d\n", ret); + goto exit; + } + + ret = count; + +exit: + return ret; +} + +static const struct file_operations fops_simulate_fw_crash = { + .read = ath11k_read_simulate_fw_crash, + .write = ath11k_write_simulate_fw_crash, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +static ssize_t ath11k_write_enable_extd_tx_stats(struct file *file, + const char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct ath11k *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 != ATH11K_STATE_ON) { + ret = -ENETDOWN; + goto out; + } + + if (filter == ar->debug.extd_tx_stats) { + ret = count; + goto out; + } + + ar->debug.extd_tx_stats = filter; + ret = count; + +out: + mutex_unlock(&ar->conf_mutex); + return ret; +} + +static ssize_t ath11k_read_enable_extd_tx_stats(struct file *file, + char __user *ubuf, + size_t count, loff_t *ppos) + +{ + char buf[32] = {0}; + struct ath11k *ar = file->private_data; + int len = 0; + + mutex_lock(&ar->conf_mutex); + len = scnprintf(buf, sizeof(buf) - len, "%08x\n", + ar->debug.extd_tx_stats); + mutex_unlock(&ar->conf_mutex); + + return simple_read_from_buffer(ubuf, count, ppos, buf, len); +} + +static const struct file_operations fops_extd_tx_stats = { + .read = ath11k_read_enable_extd_tx_stats, + .write = ath11k_write_enable_extd_tx_stats, + .open = simple_open +}; + +static ssize_t ath11k_write_extd_rx_stats(struct file *file, + const char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct ath11k *ar = file->private_data; + struct ath11k_base *ab = ar->ab; + struct htt_rx_ring_tlv_filter tlv_filter = {0}; + u32 enable, rx_filter = 0, ring_id; + int i; + int ret; + + if (kstrtouint_from_user(ubuf, count, 0, &enable)) + return -EINVAL; + + mutex_lock(&ar->conf_mutex); + + if (ar->state != ATH11K_STATE_ON) { + ret = -ENETDOWN; + goto exit; + } + + if (enable > 1) { + ret = -EINVAL; + goto exit; + } + + if (enable == ar->debug.extd_rx_stats) { + ret = count; + goto exit; + } + + if (enable) { + rx_filter = HTT_RX_FILTER_TLV_FLAGS_MPDU_START; + rx_filter |= HTT_RX_FILTER_TLV_FLAGS_PPDU_START; + rx_filter |= HTT_RX_FILTER_TLV_FLAGS_PPDU_END; + rx_filter |= HTT_RX_FILTER_TLV_FLAGS_PPDU_END_USER_STATS; + rx_filter |= HTT_RX_FILTER_TLV_FLAGS_PPDU_END_USER_STATS_EXT; + rx_filter |= HTT_RX_FILTER_TLV_FLAGS_PPDU_END_STATUS_DONE; + + tlv_filter.rx_filter = rx_filter; + tlv_filter.pkt_filter_flags0 = HTT_RX_FP_MGMT_FILTER_FLAGS0; + tlv_filter.pkt_filter_flags1 = HTT_RX_FP_MGMT_FILTER_FLAGS1; + tlv_filter.pkt_filter_flags2 = HTT_RX_FP_CTRL_FILTER_FLASG2; + tlv_filter.pkt_filter_flags3 = HTT_RX_FP_CTRL_FILTER_FLASG3 | + HTT_RX_FP_DATA_FILTER_FLASG3; + } else { + tlv_filter = ath11k_mac_mon_status_filter_default; + } + + ar->debug.rx_filter = tlv_filter.rx_filter; + + for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) { + ring_id = ar->dp.rx_mon_status_refill_ring[i].refill_buf_ring.ring_id; + ret = ath11k_dp_tx_htt_rx_filter_setup(ar->ab, ring_id, ar->dp.mac_id, + HAL_RXDMA_MONITOR_STATUS, + DP_RX_BUFFER_SIZE, &tlv_filter); + + if (ret) { + ath11k_warn(ar->ab, "failed to set rx filter for monitor status ring\n"); + goto exit; + } + } + + ar->debug.extd_rx_stats = enable; + ret = count; +exit: + mutex_unlock(&ar->conf_mutex); + return ret; +} + +static ssize_t ath11k_read_extd_rx_stats(struct file *file, + char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct ath11k *ar = file->private_data; + char buf[32]; + int len = 0; + + mutex_lock(&ar->conf_mutex); + len = scnprintf(buf, sizeof(buf) - len, "%d\n", + ar->debug.extd_rx_stats); + mutex_unlock(&ar->conf_mutex); + + return simple_read_from_buffer(ubuf, count, ppos, buf, len); +} + +static const struct file_operations fops_extd_rx_stats = { + .read = ath11k_read_extd_rx_stats, + .write = ath11k_write_extd_rx_stats, + .open = simple_open, +}; + +static int ath11k_fill_bp_stats(struct ath11k_base *ab, + struct ath11k_bp_stats *bp_stats, + char *buf, int len, int size) +{ + lockdep_assert_held(&ab->base_lock); + + len += scnprintf(buf + len, size - len, "count: %u\n", + bp_stats->count); + len += scnprintf(buf + len, size - len, "hp: %u\n", + bp_stats->hp); + len += scnprintf(buf + len, size - len, "tp: %u\n", + bp_stats->tp); + len += scnprintf(buf + len, size - len, "seen before: %ums\n\n", + jiffies_to_msecs(jiffies - bp_stats->jiffies)); + return len; +} + +static ssize_t ath11k_debugfs_dump_soc_ring_bp_stats(struct ath11k_base *ab, + char *buf, int size) +{ + struct ath11k_bp_stats *bp_stats; + bool stats_rxd = false; + u8 i, pdev_idx; + int len = 0; + + len += scnprintf(buf + len, size - len, "\nBackpressure Stats\n"); + len += scnprintf(buf + len, size - len, "==================\n"); + + spin_lock_bh(&ab->base_lock); + for (i = 0; i < HTT_SW_UMAC_RING_IDX_MAX; i++) { + bp_stats = &ab->soc_stats.bp_stats.umac_ring_bp_stats[i]; + + if (!bp_stats->count) + continue; + + len += scnprintf(buf + len, size - len, "Ring: %s\n", + htt_bp_umac_ring[i]); + len = ath11k_fill_bp_stats(ab, bp_stats, buf, len, size); + stats_rxd = true; + } + + for (i = 0; i < HTT_SW_LMAC_RING_IDX_MAX; i++) { + for (pdev_idx = 0; pdev_idx < MAX_RADIOS; pdev_idx++) { + bp_stats = + &ab->soc_stats.bp_stats.lmac_ring_bp_stats[i][pdev_idx]; + + if (!bp_stats->count) + continue; + + len += scnprintf(buf + len, size - len, "Ring: %s\n", + htt_bp_lmac_ring[i]); + len += scnprintf(buf + len, size - len, "pdev: %d\n", + pdev_idx); + len = ath11k_fill_bp_stats(ab, bp_stats, buf, len, size); + stats_rxd = true; + } + } + spin_unlock_bh(&ab->base_lock); + + if (!stats_rxd) + len += scnprintf(buf + len, size - len, + "No Ring Backpressure stats received\n\n"); + + return len; +} + +static ssize_t ath11k_debugfs_dump_soc_dp_stats(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath11k_base *ab = file->private_data; + struct ath11k_soc_dp_stats *soc_stats = &ab->soc_stats; + int len = 0, i, retval; + const int size = 4096; + static const char *rxdma_err[HAL_REO_ENTR_RING_RXDMA_ECODE_MAX] = { + "Overflow", "MPDU len", "FCS", "Decrypt", "TKIP MIC", + "Unencrypt", "MSDU len", "MSDU limit", "WiFi parse", + "AMSDU parse", "SA timeout", "DA timeout", + "Flow timeout", "Flush req"}; + static const char *reo_err[HAL_REO_DEST_RING_ERROR_CODE_MAX] = { + "Desc addr zero", "Desc inval", "AMPDU in non BA", + "Non BA dup", "BA dup", "Frame 2k jump", "BAR 2k jump", + "Frame OOR", "BAR OOR", "No BA session", + "Frame SN equal SSN", "PN check fail", "2k err", + "PN err", "Desc blocked"}; + + char *buf; + + buf = kzalloc(size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + len += scnprintf(buf + len, size - len, "SOC RX STATS:\n\n"); + len += scnprintf(buf + len, size - len, "err ring pkts: %u\n", + soc_stats->err_ring_pkts); + len += scnprintf(buf + len, size - len, "Invalid RBM: %u\n\n", + soc_stats->invalid_rbm); + len += scnprintf(buf + len, size - len, "RXDMA errors:\n"); + for (i = 0; i < HAL_REO_ENTR_RING_RXDMA_ECODE_MAX; i++) + len += scnprintf(buf + len, size - len, "%s: %u\n", + rxdma_err[i], soc_stats->rxdma_error[i]); + + len += scnprintf(buf + len, size - len, "\nREO errors:\n"); + for (i = 0; i < HAL_REO_DEST_RING_ERROR_CODE_MAX; i++) + len += scnprintf(buf + len, size - len, "%s: %u\n", + reo_err[i], soc_stats->reo_error[i]); + + len += scnprintf(buf + len, size - len, "\nHAL REO errors:\n"); + len += scnprintf(buf + len, size - len, + "ring0: %u\nring1: %u\nring2: %u\nring3: %u\n", + soc_stats->hal_reo_error[0], + soc_stats->hal_reo_error[1], + soc_stats->hal_reo_error[2], + soc_stats->hal_reo_error[3]); + + len += scnprintf(buf + len, size - len, "\nSOC TX STATS:\n"); + len += scnprintf(buf + len, size - len, "\nTCL Ring Full Failures:\n"); + + for (i = 0; i < DP_TCL_NUM_RING_MAX; i++) + len += scnprintf(buf + len, size - len, "ring%d: %u\n", + i, soc_stats->tx_err.desc_na[i]); + + len += scnprintf(buf + len, size - len, + "\nMisc Transmit Failures: %d\n", + atomic_read(&soc_stats->tx_err.misc_fail)); + + len += ath11k_debugfs_dump_soc_ring_bp_stats(ab, buf + len, size - len); + + 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_soc_dp_stats = { + .read = ath11k_debugfs_dump_soc_dp_stats, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +int ath11k_debugfs_pdev_create(struct ath11k_base *ab) +{ + if (test_bit(ATH11K_FLAG_REGISTERED, &ab->dev_flags)) + return 0; + + debugfs_create_file("simulate_fw_crash", 0600, ab->debugfs_soc, ab, + &fops_simulate_fw_crash); + + debugfs_create_file("soc_dp_stats", 0600, ab->debugfs_soc, ab, + &fops_soc_dp_stats); + + return 0; +} + +void ath11k_debugfs_pdev_destroy(struct ath11k_base *ab) +{ + debugfs_remove_recursive(ab->debugfs_soc); + ab->debugfs_soc = NULL; +} + +int ath11k_debugfs_soc_create(struct ath11k_base *ab) +{ + struct dentry *root; + bool dput_needed; + char name[64]; + int ret; + + root = debugfs_lookup("ath11k", NULL); + if (!root) { + root = debugfs_create_dir("ath11k", NULL); + if (IS_ERR_OR_NULL(root)) + return PTR_ERR(root); + + dput_needed = false; + } else { + /* a dentry from lookup() needs dput() after we don't use it */ + dput_needed = true; + } + + scnprintf(name, sizeof(name), "%s-%s", ath11k_bus_str(ab->hif.bus), + dev_name(ab->dev)); + + ab->debugfs_soc = debugfs_create_dir(name, root); + if (IS_ERR_OR_NULL(ab->debugfs_soc)) { + ret = PTR_ERR(ab->debugfs_soc); + goto out; + } + + ret = 0; + +out: + if (dput_needed) + dput(root); + + return ret; +} + +void ath11k_debugfs_soc_destroy(struct ath11k_base *ab) +{ + debugfs_remove_recursive(ab->debugfs_soc); + ab->debugfs_soc = NULL; + + /* We are not removing ath11k directory on purpose, even if it + * would be empty. This simplifies the directory handling and it's + * a minor cosmetic issue to leave an empty ath11k directory to + * debugfs. + */ +} + +void ath11k_debugfs_fw_stats_init(struct ath11k *ar) +{ + struct dentry *fwstats_dir = debugfs_create_dir("fw_stats", + ar->debug.debugfs_pdev); + + ar->debug.fw_stats.debugfs_fwstats = fwstats_dir; + + /* all stats debugfs files created are under "fw_stats" directory + * created per PDEV + */ + debugfs_create_file("pdev_stats", 0600, fwstats_dir, ar, + &fops_pdev_stats); + debugfs_create_file("vdev_stats", 0600, fwstats_dir, ar, + &fops_vdev_stats); + debugfs_create_file("beacon_stats", 0600, fwstats_dir, ar, + &fops_bcn_stats); + + INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs); + INIT_LIST_HEAD(&ar->debug.fw_stats.vdevs); + INIT_LIST_HEAD(&ar->debug.fw_stats.bcn); + + init_completion(&ar->debug.fw_stats_complete); +} + +static ssize_t ath11k_write_pktlog_filter(struct file *file, + const char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct ath11k *ar = file->private_data; + struct ath11k_base *ab = ar->ab; + struct htt_rx_ring_tlv_filter tlv_filter = {0}; + u32 rx_filter = 0, ring_id, filter, mode; + u8 buf[128] = {0}; + int i, ret; + ssize_t rc; + + mutex_lock(&ar->conf_mutex); + if (ar->state != ATH11K_STATE_ON) { + ret = -ENETDOWN; + goto out; + } + + rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, ubuf, count); + if (rc < 0) { + ret = rc; + goto out; + } + buf[rc] = '\0'; + + ret = sscanf(buf, "0x%x %u", &filter, &mode); + if (ret != 2) { + ret = -EINVAL; + goto out; + } + + if (filter) { + ret = ath11k_wmi_pdev_pktlog_enable(ar, filter); + if (ret) { + ath11k_warn(ar->ab, + "failed to enable pktlog filter %x: %d\n", + ar->debug.pktlog_filter, ret); + goto out; + } + } else { + ret = ath11k_wmi_pdev_pktlog_disable(ar); + if (ret) { + ath11k_warn(ar->ab, "failed to disable pktlog: %d\n", ret); + goto out; + } + } + +#define HTT_RX_FILTER_TLV_LITE_MODE \ + (HTT_RX_FILTER_TLV_FLAGS_PPDU_START | \ + HTT_RX_FILTER_TLV_FLAGS_PPDU_END | \ + HTT_RX_FILTER_TLV_FLAGS_PPDU_END_USER_STATS | \ + HTT_RX_FILTER_TLV_FLAGS_PPDU_END_USER_STATS_EXT | \ + HTT_RX_FILTER_TLV_FLAGS_PPDU_END_STATUS_DONE | \ + HTT_RX_FILTER_TLV_FLAGS_MPDU_START) + + if (mode == ATH11K_PKTLOG_MODE_FULL) { + rx_filter = HTT_RX_FILTER_TLV_LITE_MODE | + HTT_RX_FILTER_TLV_FLAGS_MSDU_START | + HTT_RX_FILTER_TLV_FLAGS_MSDU_END | + HTT_RX_FILTER_TLV_FLAGS_MPDU_END | + HTT_RX_FILTER_TLV_FLAGS_PACKET_HEADER | + HTT_RX_FILTER_TLV_FLAGS_ATTENTION; + } else if (mode == ATH11K_PKTLOG_MODE_LITE) { + ret = ath11k_dp_tx_htt_h2t_ppdu_stats_req(ar, + HTT_PPDU_STATS_TAG_PKTLOG); + if (ret) { + ath11k_err(ar->ab, "failed to enable pktlog lite: %d\n", ret); + goto out; + } + + rx_filter = HTT_RX_FILTER_TLV_LITE_MODE; + } else { + ret = ath11k_dp_tx_htt_h2t_ppdu_stats_req(ar, + HTT_PPDU_STATS_TAG_DEFAULT); + if (ret) { + ath11k_err(ar->ab, "failed to send htt ppdu stats req: %d\n", + ret); + goto out; + } + } + + tlv_filter.rx_filter = rx_filter; + if (rx_filter) { + tlv_filter.pkt_filter_flags0 = HTT_RX_FP_MGMT_FILTER_FLAGS0; + tlv_filter.pkt_filter_flags1 = HTT_RX_FP_MGMT_FILTER_FLAGS1; + tlv_filter.pkt_filter_flags2 = HTT_RX_FP_CTRL_FILTER_FLASG2; + tlv_filter.pkt_filter_flags3 = HTT_RX_FP_CTRL_FILTER_FLASG3 | + HTT_RX_FP_DATA_FILTER_FLASG3; + } + + for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) { + ring_id = ar->dp.rx_mon_status_refill_ring[i].refill_buf_ring.ring_id; + ret = ath11k_dp_tx_htt_rx_filter_setup(ab, ring_id, + ar->dp.mac_id + i, + HAL_RXDMA_MONITOR_STATUS, + DP_RX_BUFFER_SIZE, &tlv_filter); + + if (ret) { + ath11k_warn(ab, "failed to set rx filter for monitor status ring\n"); + goto out; + } + } + + ath11k_dbg(ab, ATH11K_DBG_WMI, "pktlog filter %d mode %s\n", + filter, ((mode == ATH11K_PKTLOG_MODE_FULL) ? "full" : "lite")); + + ar->debug.pktlog_filter = filter; + ar->debug.pktlog_mode = mode; + ret = count; + +out: + mutex_unlock(&ar->conf_mutex); + return ret; +} + +static ssize_t ath11k_read_pktlog_filter(struct file *file, + char __user *ubuf, + size_t count, loff_t *ppos) + +{ + char buf[32] = {0}; + struct ath11k *ar = file->private_data; + int len = 0; + + mutex_lock(&ar->conf_mutex); + len = scnprintf(buf, sizeof(buf) - len, "%08x %08x\n", + ar->debug.pktlog_filter, + ar->debug.pktlog_mode); + mutex_unlock(&ar->conf_mutex); + + return simple_read_from_buffer(ubuf, count, ppos, buf, len); +} + +static const struct file_operations fops_pktlog_filter = { + .read = ath11k_read_pktlog_filter, + .write = ath11k_write_pktlog_filter, + .open = simple_open +}; + +static ssize_t ath11k_write_simulate_radar(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath11k *ar = file->private_data; + int ret; + + ret = ath11k_wmi_simulate_radar(ar); + if (ret) + return ret; + + return count; +} + +static const struct file_operations fops_simulate_radar = { + .write = ath11k_write_simulate_radar, + .open = simple_open +}; + +int ath11k_debugfs_register(struct ath11k *ar) +{ + struct ath11k_base *ab = ar->ab; + char pdev_name[5]; + char buf[100] = {0}; + + snprintf(pdev_name, sizeof(pdev_name), "%s%d", "mac", ar->pdev_idx); + + ar->debug.debugfs_pdev = debugfs_create_dir(pdev_name, ab->debugfs_soc); + if (IS_ERR(ar->debug.debugfs_pdev)) + return PTR_ERR(ar->debug.debugfs_pdev); + + /* Create a symlink under ieee80211/phy* */ + snprintf(buf, 100, "../../ath11k/%pd2", ar->debug.debugfs_pdev); + debugfs_create_symlink("ath11k", ar->hw->wiphy->debugfsdir, buf); + + ath11k_debugfs_htt_stats_init(ar); + + ath11k_debugfs_fw_stats_init(ar); + + debugfs_create_file("ext_tx_stats", 0644, + ar->debug.debugfs_pdev, ar, + &fops_extd_tx_stats); + debugfs_create_file("ext_rx_stats", 0644, + ar->debug.debugfs_pdev, ar, + &fops_extd_rx_stats); + debugfs_create_file("pktlog_filter", 0644, + ar->debug.debugfs_pdev, ar, + &fops_pktlog_filter); + + if (ar->hw->wiphy->bands[NL80211_BAND_5GHZ]) { + debugfs_create_file("dfs_simulate_radar", 0200, + ar->debug.debugfs_pdev, ar, + &fops_simulate_radar); + debugfs_create_bool("dfs_block_radar_events", 0200, + ar->debug.debugfs_pdev, + &ar->dfs_block_radar_events); + } + + return 0; +} + +void ath11k_debugfs_unregister(struct ath11k *ar) +{ +} |