#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
+#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;
+
static int ath10k_printk(const char *level, const char *fmt, ...)
{
struct va_format vaf;
}
EXPORT_SYMBOL(ath10k_info);
+void ath10k_print_driver_info(struct ath10k *ar)
+{
+ ath10k_info("%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("debug %d debugfs %d tracing %d dfs %d\n",
+ config_enabled(CONFIG_ATH10K_DEBUG),
+ config_enabled(CONFIG_ATH10K_DEBUGFS),
+ config_enabled(CONFIG_ATH10K_TRACING),
+ config_enabled(CONFIG_ATH10K_DFS_CERTIFIED));
+}
+EXPORT_SYMBOL(ath10k_print_driver_info);
+
int ath10k_err(const char *fmt, ...)
{
struct va_format vaf = {
{
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_MAX_SERVICE; 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_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,
+ /* 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;
.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;
.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);
+
+ if (ar->debug.htt_max_amsdu)
+ amsdu = ar->debug.htt_max_amsdu;
+
+ if (ar->debug.htt_max_ampdu)
+ ampdu = ar->debug.htt_max_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->debug.htt_max_amsdu = amsdu;
+ ar->debug.htt_max_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)
* warning from del_timer(). */
if (ar->debug.htt_stats_mask != 0)
cancel_delayed_work(&ar->debug.htt_stats_dwork);
+
+ ar->debug.htt_max_amsdu = 0;
+ ar->debug.htt_max_ampdu = 0;
}
static ssize_t ath10k_write_simulate_radar(struct file *file,
int ath10k_debug_create(struct ath10k *ar)
{
+ int ret;
+
+ ar->debug.fw_crash_data = vzalloc(sizeof(*ar->debug.fw_crash_data));
+ if (!ar->debug.fw_crash_data) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
ar->hw->wiphy->debugfsdir);
-
- if (!ar->debug.debugfs_phy)
- return -ENOMEM;
+ if (!ar->debug.debugfs_phy) {
+ ret = -ENOMEM;
+ goto err_free_fw_crash_data;
+ }
INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
ath10k_debug_htt_stats_dwork);
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);
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);
}
return 0;
+
+err_free_fw_crash_data:
+ vfree(ar->debug.fw_crash_data);
+
+err:
+ return ret;
}
void ath10k_debug_destroy(struct ath10k *ar)
{
+ vfree(ar->debug.fw_crash_data);
cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
}
projects / cascardo / linux.git / blobdiff