Normally, when we hit an assert, we print out all the
assert data. However, in certain tests, when we trigger
it from debugfs intentionally, that can be useless and
confusing.
Allow writing the string "nolog\n" to the fw_nmi and
fw_restart files suppressing the assert dump as well
as - in the case of fw_restart - the
iwlwifi 0000:00:00.0: FW error in SYNC CMD REPLY_ERROR
message.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211204174546.75e29a2ab68d.Id3064feda2ce7a77c116c6d6e71ce5ff447c6e86@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
* are sent
* @STATUS_TRANS_IDLE: the trans is idle - general commands are not to be sent
* @STATUS_TRANS_DEAD: trans is dead - avoid any read/write operation
+ * @STATUS_SUPPRESS_CMD_ERROR_ONCE: suppress "FW error in SYNC CMD" once,
+ * e.g. for testing
*/
enum iwl_trans_status {
STATUS_SYNC_HCMD_ACTIVE,
STATUS_TRANS_GOING_IDLE,
STATUS_TRANS_IDLE,
STATUS_TRANS_DEAD,
+ STATUS_SUPPRESS_CMD_ERROR_ONCE,
};
static inline int
if (mvm->fw_restart >= 0)
mvm->fw_restart++;
+ if (count == 6 && !strcmp(buf, "nolog\n")) {
+ set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status);
+ set_bit(STATUS_SUPPRESS_CMD_ERROR_ONCE, &mvm->trans->status);
+ }
+
/* take the return value to make compiler happy - it will fail anyway */
ret = iwl_mvm_send_cmd_pdu(mvm,
WIDE_ID(LONG_GROUP, REPLY_ERROR),
if (!iwl_mvm_firmware_running(mvm))
return -EIO;
+ if (count == 6 && !strcmp(buf, "nolog\n"))
+ set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status);
+
iwl_force_nmi(mvm->trans);
return count;
* @IWL_MVM_STATUS_FIRMWARE_RUNNING: firmware is running
* @IWL_MVM_STATUS_NEED_FLUSH_P2P: need to flush P2P bcast STA
* @IWL_MVM_STATUS_IN_D3: in D3 (or at least about to go into it)
+ * @IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE: suppress one error log
+ * if this is set, when intentionally triggered
*/
enum iwl_mvm_status {
IWL_MVM_STATUS_HW_RFKILL,
IWL_MVM_STATUS_FIRMWARE_RUNNING,
IWL_MVM_STATUS_NEED_FLUSH_P2P,
IWL_MVM_STATUS_IN_D3,
+ IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE,
};
struct iwl_mvm_csme_conn_info {
{
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
- if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status))
+ if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) &&
+ !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE,
+ &mvm->status))
iwl_mvm_dump_nic_error_log(mvm);
if (sync) {
}
if (test_bit(STATUS_FW_ERROR, &trans->status)) {
- IWL_ERR(trans, "FW error in SYNC CMD %s\n", cmd_str);
- dump_stack();
+ if (!test_and_clear_bit(STATUS_SUPPRESS_CMD_ERROR_ONCE,
+ &trans->status)) {
+ IWL_ERR(trans, "FW error in SYNC CMD %s\n", cmd_str);
+ dump_stack();
+ }
ret = -EIO;
goto cancel;
}