From: Anjaneyulu <pagadala.yesu.anjaneyulu@xxxxxxxxx>
Add debgufs handler for fw system statistics command.
Signed-off-by: Anjaneyulu <pagadala.yesu.anjaneyulu@xxxxxxxxx>
Signed-off-by: Gregory Greenman <gregory.greenman@xxxxxxxxx>
---
.../net/wireless/intel/iwlwifi/mvm/debugfs.c | 104 ++++++++++++++++++
1 file changed, 104 insertions(+)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
index 2c93b5a442c4..329c545f65fd 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
@@ -1005,6 +1005,13 @@ static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
char *buf;
int ret;
size_t bufsz;
+ u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
+ WIDE_ID(SYSTEM_GROUP,
+ SYSTEM_STATISTICS_CMD),
+ IWL_FW_CMD_VER_UNKNOWN);
+
+ if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN)
+ return -EOPNOTSUPP;
if (iwl_mvm_has_new_rx_stats_api(mvm))
bufsz = ((sizeof(struct mvm_statistics_rx) /
@@ -1184,6 +1191,101 @@ static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
}
#undef PRINT_STAT_LE32
+static ssize_t iwl_dbgfs_fw_system_stats_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ char *buff, *pos, *endpos;
+ int ret;
+ size_t bufsz;
+ int i;
+ struct iwl_mvm_vif *mvmvif;
+ struct ieee80211_vif *vif;
+ struct iwl_mvm *mvm = file->private_data;
+ u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
+ WIDE_ID(SYSTEM_GROUP,
+ SYSTEM_STATISTICS_CMD),
+ IWL_FW_CMD_VER_UNKNOWN);
+
+ /* in case of a wrong cmd version, allocate buffer only for error msg */
+ bufsz = (cmd_ver == 1) ? 4096 : 64;
+
+ buff = kzalloc(bufsz, GFP_KERNEL);
+ if (!buff)
+ return -ENOMEM;
+
+ pos = buff;
+ endpos = pos + bufsz;
+
+ if (cmd_ver != 1) {
+ pos += scnprintf(pos, endpos - pos,
+ "System stats not supported:%d\n", cmd_ver);
+ goto send_out;
+ }
+
+ mutex_lock(&mvm->mutex);
+ if (iwl_mvm_firmware_running(mvm))
+ iwl_mvm_request_statistics(mvm, false);
+
+ for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) {
+ vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false);
+ if (!vif)
+ continue;
+
+ if (vif->type == NL80211_IFTYPE_STATION)
+ break;
+ }
+
+ if (i == NUM_MAC_INDEX_DRIVER || !vif) {
+ pos += scnprintf(pos, endpos - pos, "vif is NULL\n");
+ goto release_send_out;
+ }
+
+ mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ if (!mvmvif) {
+ pos += scnprintf(pos, endpos - pos, "mvmvif is NULL\n");
+ goto release_send_out;
+ }
+
+ for_each_mvm_vif_valid_link(mvmvif, i) {
+ struct iwl_mvm_vif_link_info *link_info = mvmvif->link[i];
+
+ pos += scnprintf(pos, endpos - pos,
+ "link_id %d", i);
+ pos += scnprintf(pos, endpos - pos,
+ " num_beacons %d",
+ link_info->beacon_stats.num_beacons);
+ pos += scnprintf(pos, endpos - pos,
+ " accu_num_beacons %d",
+ link_info->beacon_stats.accu_num_beacons);
+ pos += scnprintf(pos, endpos - pos,
+ " avg_signal %d\n",
+ link_info->beacon_stats.avg_signal);
+ }
+
+ pos += scnprintf(pos, endpos - pos,
+ "radio_stats.rx_time %lld\n",
+ mvm->radio_stats.rx_time);
+ pos += scnprintf(pos, endpos - pos,
+ "radio_stats.tx_time %lld\n",
+ mvm->radio_stats.tx_time);
+ pos += scnprintf(pos, endpos - pos,
+ "accu_radio_stats.rx_time %lld\n",
+ mvm->accu_radio_stats.rx_time);
+ pos += scnprintf(pos, endpos - pos,
+ "accu_radio_stats.tx_time %lld\n",
+ mvm->accu_radio_stats.tx_time);
+
+release_send_out:
+ mutex_unlock(&mvm->mutex);
+
+send_out:
+ ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
+ kfree(buff);
+
+ return ret;
+}
+
static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
char __user *user_buf, size_t count,
loff_t *ppos,
@@ -2053,6 +2155,7 @@ MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
+MVM_DEBUGFS_READ_FILE_OPS(fw_system_stats);
MVM_DEBUGFS_READ_FILE_OPS(fw_ver);
MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver);
MVM_DEBUGFS_READ_FILE_OPS(tas_get_status);
@@ -2260,6 +2363,7 @@ void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm)
MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400);
MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400);
MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400);
+ MVM_DEBUGFS_ADD_FILE(fw_system_stats, mvm->debugfs_dir, 0400);
MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, 0200);
--
2.38.1
