Commit 268712dc authored by Emmanuel Grumbach's avatar Emmanuel Grumbach Committed by Johannes Berg
Browse files

wifi: iwlwifi: mvm: add a debugfs hook to clear the monitor data 



This can be used by the user space when it wants to clear the data we
collected so far for privacy reasons.

Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: default avatarMiri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20231207044813.d5e97d5ec0d9.I7a5e836e6109e1fce7e6301dba8d1f28e60a5440@changeid


Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 1261fefa

drivers/net/wireless/intel/iwlwifi/fw/dbg.c

+10 −0
Original line number Diff line number Diff line
@@ -3395,3 +3395,13 @@ void iwl_fw_disable_dbg_asserts(struct iwl_fw_runtime *fwrt) 
	iwl_trans_send_cmd(fwrt->trans, &hcmd);

}

IWL_EXPORT_SYMBOL(iwl_fw_disable_dbg_asserts);



void iwl_fw_dbg_clear_monitor_buf(struct iwl_fw_runtime *fwrt)

{

	struct iwl_fw_dbg_params params = {0};



	iwl_fw_dbg_stop_sync(fwrt);

	iwl_dbg_tlv_init_cfg(fwrt);

	iwl_fw_dbg_stop_restart_recording(fwrt, &params, false);

}

IWL_EXPORT_SYMBOL(iwl_fw_dbg_clear_monitor_buf);

drivers/net/wireless/intel/iwlwifi/fw/dbg.h

+1 −0
Original line number Diff line number Diff line
@@ -330,6 +330,7 @@ void iwl_send_dbg_dump_complete_cmd(struct iwl_fw_runtime *fwrt, 
				    u32 timepoint,

				    u32 timepoint_data);

void iwl_fw_disable_dbg_asserts(struct iwl_fw_runtime *fwrt);

void iwl_fw_dbg_clear_monitor_buf(struct iwl_fw_runtime *fwrt);



#define IWL_FW_CHECK_FAILED(_obj, _fmt, ...)				\

	IWL_ERR_LIMIT(_obj, _fmt, __VA_ARGS__)

drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c

+1 −1
Original line number Diff line number Diff line
@@ -1274,7 +1274,7 @@ iwl_dbg_tlv_tp_trigger(struct iwl_fw_runtime *fwrt, bool sync, 
	return 0;

}



static void iwl_dbg_tlv_init_cfg(struct iwl_fw_runtime *fwrt)

void iwl_dbg_tlv_init_cfg(struct iwl_fw_runtime *fwrt)

{

	enum iwl_fw_ini_buffer_location *ini_dest = &fwrt->trans->dbg.ini_dest;

	int ret, i;

drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h

+1 −0
Original line number Diff line number Diff line
@@ -57,6 +57,7 @@ void _iwl_dbg_tlv_time_point(struct iwl_fw_runtime *fwrt, 
			     enum iwl_fw_ini_time_point tp_id,

			     union iwl_dbg_tlv_tp_data *tp_data,

			     bool sync);

void iwl_dbg_tlv_init_cfg(struct iwl_fw_runtime *fwrt);



static inline void iwl_dbg_tlv_time_point(struct iwl_fw_runtime *fwrt,

					  enum iwl_fw_ini_time_point tp_id,

drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c

+16 −0
Original line number Diff line number Diff line
@@ -1714,6 +1714,20 @@ static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, 
	return count;

}



static ssize_t iwl_dbgfs_fw_dbg_clear_write(struct iwl_mvm *mvm,

					    char *buf, size_t count,

					    loff_t *ppos)

{

	if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000)

		return -EOPNOTSUPP;



	mutex_lock(&mvm->mutex);

	iwl_fw_dbg_clear_monitor_buf(&mvm->fwrt);

	mutex_unlock(&mvm->mutex);



	return count;

}



static ssize_t iwl_dbgfs_dbg_time_point_write(struct iwl_mvm *mvm,

					      char *buf, size_t count,

					      loff_t *ppos)
@@ -2166,6 +2180,7 @@ MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10); 
MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);

MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);

MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64);

MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_clear, 64);

MVM_DEBUGFS_WRITE_FILE_OPS(dbg_time_point, 64);

MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl,

			   (IWL_RSS_INDIRECTION_TABLE_SIZE * 2));
@@ -2372,6 +2387,7 @@ void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm) 
	MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600);

	MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600);

	MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200);

	MVM_DEBUGFS_ADD_FILE(fw_dbg_clear, mvm->debugfs_dir, 0200);

	MVM_DEBUGFS_ADD_FILE(dbg_time_point, mvm->debugfs_dir, 0200);

	MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200);

	MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200);