mirror of https://gitee.com/openkylin/linux.git
ath10k: add debugfs file to control firmware dbglog
Firmware dbglogs can be now enabled through fw_dbglog file. To enable all possible log messages run: echo 0xffffffff > /sys/kernel/debug/ieee80211/phy0/ath10k/fw_dbglog And to put back firmare defaults use 0x0: echo 0x0 > /sys/kernel/debug/ieee80211/phy0/ath10k/fw_dbglog Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Kalle Valo
parent
869526b958
commit
f118a3e515
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@ -272,6 +272,8 @@ struct ath10k_debug {
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struct delayed_work htt_stats_dwork;
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struct ath10k_dfs_stats dfs_stats;
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struct ath_dfs_pool_stats dfs_pool_stats;
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u32 fw_dbglog_mask;
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};
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enum ath10k_state {
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@ -614,6 +614,61 @@ static const struct file_operations fops_htt_stats_mask = {
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.llseek = default_llseek,
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};
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static ssize_t ath10k_read_fw_dbglog(struct file *file,
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char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath10k *ar = file->private_data;
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unsigned int len;
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char buf[32];
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len = scnprintf(buf, sizeof(buf), "0x%08x\n",
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ar->debug.fw_dbglog_mask);
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return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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}
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static ssize_t ath10k_write_fw_dbglog(struct file *file,
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const char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath10k *ar = file->private_data;
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unsigned long mask;
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int ret;
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ret = kstrtoul_from_user(user_buf, count, 0, &mask);
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if (ret)
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return ret;
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mutex_lock(&ar->conf_mutex);
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ar->debug.fw_dbglog_mask = mask;
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if (ar->state == ATH10K_STATE_ON) {
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ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
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if (ret) {
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ath10k_warn("dbglog cfg failed from debugfs: %d\n",
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ret);
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goto exit;
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}
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}
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ret = count;
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exit:
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mutex_unlock(&ar->conf_mutex);
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return ret;
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}
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static const struct file_operations fops_fw_dbglog = {
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.read = ath10k_read_fw_dbglog,
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.write = ath10k_write_fw_dbglog,
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.open = simple_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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int ath10k_debug_start(struct ath10k *ar)
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{
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int ret;
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@ -625,6 +680,14 @@ int ath10k_debug_start(struct ath10k *ar)
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/* continue normally anyway, this isn't serious */
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ath10k_warn("failed to start htt stats workqueue: %d\n", ret);
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if (ar->debug.fw_dbglog_mask) {
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ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
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if (ret)
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/* not serious */
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ath10k_warn("failed to enable dbglog during start: %d",
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ret);
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}
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return 0;
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}
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@ -747,6 +810,9 @@ int ath10k_debug_create(struct ath10k *ar)
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debugfs_create_file("htt_stats_mask", S_IRUSR, ar->debug.debugfs_phy,
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ar, &fops_htt_stats_mask);
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debugfs_create_file("fw_dbglog", S_IRUSR, ar->debug.debugfs_phy,
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ar, &fops_fw_dbglog);
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if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) {
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debugfs_create_file("dfs_simulate_radar", S_IWUSR,
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ar->debug.debugfs_phy, ar,
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@ -3502,3 +3502,40 @@ int ath10k_wmi_force_fw_hang(struct ath10k *ar,
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type, delay_ms);
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return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->force_fw_hang_cmdid);
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}
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int ath10k_wmi_dbglog_cfg(struct ath10k *ar, u32 module_enable)
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{
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struct wmi_dbglog_cfg_cmd *cmd;
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struct sk_buff *skb;
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u32 cfg;
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skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
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if (!skb)
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return -ENOMEM;
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cmd = (struct wmi_dbglog_cfg_cmd *)skb->data;
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if (module_enable) {
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cfg = SM(ATH10K_DBGLOG_LEVEL_VERBOSE,
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ATH10K_DBGLOG_CFG_LOG_LVL);
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} else {
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/* set back defaults, all modules with WARN level */
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cfg = SM(ATH10K_DBGLOG_LEVEL_WARN,
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ATH10K_DBGLOG_CFG_LOG_LVL);
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module_enable = ~0;
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}
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cmd->module_enable = __cpu_to_le32(module_enable);
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cmd->module_valid = __cpu_to_le32(~0);
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cmd->config_enable = __cpu_to_le32(cfg);
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cmd->config_valid = __cpu_to_le32(ATH10K_DBGLOG_CFG_LOG_LVL_MASK);
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ath10k_dbg(ATH10K_DBG_WMI,
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"wmi dbglog cfg modules %08x %08x config %08x %08x\n",
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__le32_to_cpu(cmd->module_enable),
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__le32_to_cpu(cmd->module_valid),
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__le32_to_cpu(cmd->config_enable),
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__le32_to_cpu(cmd->config_valid));
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return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->dbglog_cfg_cmdid);
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}
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@ -4090,6 +4090,54 @@ struct wmi_force_fw_hang_cmd {
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__le32 delay_ms;
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} __packed;
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enum ath10k_dbglog_level {
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ATH10K_DBGLOG_LEVEL_VERBOSE = 0,
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ATH10K_DBGLOG_LEVEL_INFO = 1,
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ATH10K_DBGLOG_LEVEL_WARN = 2,
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ATH10K_DBGLOG_LEVEL_ERR = 3,
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};
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/* VAP ids to enable dbglog */
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#define ATH10K_DBGLOG_CFG_VAP_LOG_LSB 0
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#define ATH10K_DBGLOG_CFG_VAP_LOG_MASK 0x0000ffff
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/* to enable dbglog in the firmware */
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#define ATH10K_DBGLOG_CFG_REPORTING_ENABLE_LSB 16
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#define ATH10K_DBGLOG_CFG_REPORTING_ENABLE_MASK 0x00010000
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/* timestamp resolution */
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#define ATH10K_DBGLOG_CFG_RESOLUTION_LSB 17
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#define ATH10K_DBGLOG_CFG_RESOLUTION_MASK 0x000E0000
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/* number of queued messages before sending them to the host */
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#define ATH10K_DBGLOG_CFG_REPORT_SIZE_LSB 20
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#define ATH10K_DBGLOG_CFG_REPORT_SIZE_MASK 0x0ff00000
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/*
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* Log levels to enable. This defines the minimum level to enable, this is
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* not a bitmask. See enum ath10k_dbglog_level for the values.
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*/
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#define ATH10K_DBGLOG_CFG_LOG_LVL_LSB 28
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#define ATH10K_DBGLOG_CFG_LOG_LVL_MASK 0x70000000
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/*
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* Note: this is a cleaned up version of a struct firmware uses. For
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* example, config_valid was hidden inside an array.
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*/
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struct wmi_dbglog_cfg_cmd {
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/* bitmask to hold mod id config*/
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__le32 module_enable;
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/* see ATH10K_DBGLOG_CFG_ */
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__le32 config_enable;
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/* mask of module id bits to be changed */
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__le32 module_valid;
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/* mask of config bits to be changed, see ATH10K_DBGLOG_CFG_ */
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__le32 config_valid;
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} __packed;
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#define ATH10K_RTS_MAX 2347
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#define ATH10K_FRAGMT_THRESHOLD_MIN 540
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#define ATH10K_FRAGMT_THRESHOLD_MAX 2346
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@ -4167,5 +4215,6 @@ int ath10k_wmi_request_stats(struct ath10k *ar, enum wmi_stats_id stats_id);
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int ath10k_wmi_force_fw_hang(struct ath10k *ar,
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enum wmi_force_fw_hang_type type, u32 delay_ms);
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int ath10k_wmi_mgmt_tx(struct ath10k *ar, struct sk_buff *skb);
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int ath10k_wmi_dbglog_cfg(struct ath10k *ar, u32 module_enable);
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#endif /* _WMI_H_ */
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