#include <linux/module.h>
#include <linux/debugfs.h>
+#include <linux/version.h>
+#include <linux/vermagic.h>
+#include <linux/vmalloc.h>
#include "core.h"
#include "debug.h"
/* ms */
#define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000
-static int ath10k_printk(const char *level, const char *fmt, ...)
-{
- struct va_format vaf;
- va_list args;
- int rtn;
+#define ATH10K_FW_CRASH_DUMP_VERSION 1
- va_start(args, fmt);
+/**
+ * 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,
- vaf.fmt = fmt;
- vaf.va = &args;
+ ATH10K_FW_CRASH_DUMP_MAX,
+};
- rtn = printk("%sath10k: %pV", level, &vaf);
+struct ath10k_tlv_dump_data {
+ /* see ath10k_fw_crash_dump_type above */
+ __le32 type;
- va_end(args);
+ /* in bytes */
+ __le32 tlv_len;
- return rtn;
-}
+ /* 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;
-int ath10k_info(const char *fmt, ...)
+ /* 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;
+
+int ath10k_info(struct ath10k *ar, const char *fmt, ...)
{
struct va_format vaf = {
.fmt = fmt,
va_start(args, fmt);
vaf.va = &args;
- ret = ath10k_printk(KERN_INFO, "%pV", &vaf);
- trace_ath10k_log_info(&vaf);
+ ret = dev_info(ar->dev, "%pV", &vaf);
+ trace_ath10k_log_info(ar, &vaf);
va_end(args);
return ret;
}
EXPORT_SYMBOL(ath10k_info);
-int ath10k_err(const char *fmt, ...)
+void ath10k_print_driver_info(struct ath10k *ar)
+{
+ ath10k_info(ar, "%s (0x%08x, 0x%08x) fw %s api %d htt %d.%d\n",
+ ar->hw_params.name,
+ ar->target_version,
+ ar->chip_id,
+ ar->hw->wiphy->fw_version,
+ ar->fw_api,
+ ar->htt.target_version_major,
+ ar->htt.target_version_minor);
+ 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);
+
+int ath10k_err(struct ath10k *ar, const char *fmt, ...)
{
struct va_format vaf = {
.fmt = fmt,
va_start(args, fmt);
vaf.va = &args;
- ret = ath10k_printk(KERN_ERR, "%pV", &vaf);
- trace_ath10k_log_err(&vaf);
+ ret = dev_err(ar->dev, "%pV", &vaf);
+ trace_ath10k_log_err(ar, &vaf);
va_end(args);
return ret;
}
EXPORT_SYMBOL(ath10k_err);
-int ath10k_warn(const char *fmt, ...)
+int ath10k_warn(struct ath10k *ar, const char *fmt, ...)
{
struct va_format vaf = {
.fmt = fmt,
};
va_list args;
- int ret = 0;
va_start(args, fmt);
vaf.va = &args;
-
- if (net_ratelimit())
- ret = ath10k_printk(KERN_WARNING, "%pV", &vaf);
-
- trace_ath10k_log_warn(&vaf);
+ dev_warn_ratelimited(ar->dev, "%pV", &vaf);
+ trace_ath10k_log_warn(ar, &vaf);
va_end(args);
- return ret;
+ return 0;
}
EXPORT_SYMBOL(ath10k_warn);
{
struct ath10k *ar = file->private_data;
char *buf;
- unsigned int len = 0, buf_len = 1500;
- const char *status;
+ 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 (len > buf_len)
len = buf_len;
- for (i = 0; i < WMI_SERVICE_LAST; i++) {
- if (WMI_SERVICE_IS_ENABLED(ar->debug.wmi_service_bitmap, i))
- status = "enabled";
- else
- status = "disabled";
+ for (i = 0; i < WMI_SERVICE_MAX; i++) {
+ enabled = test_bit(i, ar->debug.wmi_service_bitmap);
+ 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,
- "0x%02x - %20s - %s\n",
- i, wmi_service_name(i), status);
+ "%-40s %s\n",
+ name, enabled ? "enabled" : "-");
}
ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
ret = ath10k_wmi_request_stats(ar, WMI_REQUEST_PEER_STAT);
if (ret) {
- ath10k_warn("could not request stats (%d)\n", ret);
+ ath10k_warn(ar, "could not request stats (%d)\n", ret);
goto exit;
}
}
if (!strcmp(buf, "soft")) {
- ath10k_info("simulating soft firmware crash\n");
+ 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("simulating hard firmware crash\n");
- ret = ath10k_wmi_vdev_set_param(ar, TARGET_NUM_VDEVS + 1,
+ 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 {
ret = -EINVAL;
}
if (ret) {
- ath10k_warn("failed to simulate firmware crash: %d\n", ret);
+ ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret);
goto exit;
}
.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 = cpu_to_le32(LINUX_VERSION_CODE);
+ strlcpy(dump_data->kernel_ver, VERMAGIC_STRING,
+ 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 int ath10k_debug_htt_stats_req(struct ath10k *ar)
{
u64 cookie;
ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask,
cookie);
if (ret) {
- ath10k_warn("failed to send htt stats request: %d\n", ret);
+ ath10k_warn(ar, "failed to send htt stats request: %d\n", ret);
return ret;
}
if (ar->state == ATH10K_STATE_ON) {
ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
if (ret) {
- ath10k_warn("dbglog cfg failed from debugfs: %d\n",
+ ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n",
ret);
goto exit;
}
ret = ath10k_debug_htt_stats_req(ar);
if (ret)
/* continue normally anyway, this isn't serious */
- ath10k_warn("failed to start htt stats workqueue: %d\n", ret);
+ 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);
if (ret)
/* not serious */
- ath10k_warn("failed to enable dbglog during start: %d",
+ ath10k_warn(ar, "failed to enable dbglog during start: %d",
ret);
}
};
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;
+
+ return 0;
+}
+
+void ath10k_debug_destroy(struct ath10k *ar)
+{
+ vfree(ar->debug.fw_crash_data);
+ ar->debug.fw_crash_data = NULL;
+}
+
+int ath10k_debug_register(struct ath10k *ar)
{
ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
ar->hw->wiphy->debugfsdir);
-
if (!ar->debug.debugfs_phy)
return -ENOMEM;
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("chip_id", S_IRUSR, ar->debug.debugfs_phy,
ar, &fops_chip_id);
return 0;
}
-void ath10k_debug_destroy(struct ath10k *ar)
+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(enum ath10k_debug_mask mask, const char *fmt, ...)
+void ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask,
+ const char *fmt, ...)
{
struct va_format vaf;
va_list args;
vaf.va = &args;
if (ath10k_debug_mask & mask)
- ath10k_printk(KERN_DEBUG, "%pV", &vaf);
+ dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf);
- trace_ath10k_log_dbg(mask, &vaf);
+ trace_ath10k_log_dbg(ar, mask, &vaf);
va_end(args);
}
EXPORT_SYMBOL(ath10k_dbg);
-void ath10k_dbg_dump(enum ath10k_debug_mask mask,
+void ath10k_dbg_dump(struct ath10k *ar,
+ enum ath10k_debug_mask mask,
const char *msg, const char *prefix,
const void *buf, size_t len)
{
if (ath10k_debug_mask & mask) {
if (msg)
- ath10k_dbg(mask, "%s\n", msg);
+ ath10k_dbg(ar, mask, "%s\n", msg);
print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len);
}
/* tracing code doesn't like null strings :/ */
- trace_ath10k_log_dbg_dump(msg ? msg : "", prefix ? prefix : "",
+ trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "",
buf, len);
}
EXPORT_SYMBOL(ath10k_dbg_dump);
projects / cascardo / linux.git / blobdiff