2021-02-10 12:33:31

by Luca Coelho

[permalink] [raw]
Subject: [PATCH v2 03/12] iwlwifi: dbg: add op_mode callback for collecting debug data.

From: Mordechay Goodstein <[email protected]>

The first use is collecting debug data when transport stops the device.

Signed-off-by: Mordechay Goodstein <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
---
drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h | 4 +++-
drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h | 14 +++++++++++++-
drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 12 +++++++++++-
.../net/wireless/intel/iwlwifi/pcie/trans-gen2.c | 4 ++++
drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 4 ++++
5 files changed, 35 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h
index e9f19ecbc4ee..92c720527946 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h
@@ -1,12 +1,14 @@
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/*
- * Copyright (C) 2018-2019 Intel Corporation
+ * Copyright (C) 2018-2020 Intel Corporation
*/
#ifndef __iwl_dbg_tlv_h__
#define __iwl_dbg_tlv_h__

#include <linux/device.h>
#include <linux/types.h>
+#include <fw/file.h>
+#include <fw/api/dbg-tlv.h>

/**
* struct iwl_dbg_tlv_node - debug TLV node
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h b/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h
index 9097fe310693..868da7e79a45 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/*
- * Copyright (C) 2005-2014, 2018-2019 Intel Corporation
+ * Copyright (C) 2005-2014, 2018-2020 Intel Corporation
* Copyright (C) 2013-2014 Intel Mobile Communications GmbH
* Copyright (C) 2015 Intel Deutschland GmbH
*/
@@ -9,6 +9,7 @@

#include <linux/netdevice.h>
#include <linux/debugfs.h>
+#include "iwl-dbg-tlv.h"

struct iwl_op_mode;
struct iwl_trans;
@@ -83,6 +84,7 @@ struct iwl_cfg;
* @nic_config: configure NIC, called before firmware is started.
* May sleep
* @wimax_active: invoked when WiMax becomes active. May sleep
+ * @time_point: called when transport layer wants to collect debug data
*/
struct iwl_op_mode_ops {
struct iwl_op_mode *(*start)(struct iwl_trans *trans,
@@ -104,6 +106,9 @@ struct iwl_op_mode_ops {
void (*cmd_queue_full)(struct iwl_op_mode *op_mode);
void (*nic_config)(struct iwl_op_mode *op_mode);
void (*wimax_active)(struct iwl_op_mode *op_mode);
+ void (*time_point)(struct iwl_op_mode *op_mode,
+ enum iwl_fw_ini_time_point tp_id,
+ union iwl_dbg_tlv_tp_data *tp_data);
};

int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops);
@@ -196,4 +201,11 @@ static inline void iwl_op_mode_wimax_active(struct iwl_op_mode *op_mode)
op_mode->ops->wimax_active(op_mode);
}

+static inline void iwl_op_mode_time_point(struct iwl_op_mode *op_mode,
+ enum iwl_fw_ini_time_point tp_id,
+ union iwl_dbg_tlv_tp_data *tp_data)
+{
+ op_mode->ops->time_point(op_mode, tp_id, tp_data);
+}
+
#endif /* __iwl_op_mode_h__ */
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 16357c560f43..3f82b219b45b 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -1412,6 +1412,15 @@ static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
iwl_mvm_nic_restart(mvm, true);
}

+static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode,
+ enum iwl_fw_ini_time_point tp_id,
+ union iwl_dbg_tlv_tp_data *tp_data)
+{
+ struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
+
+ iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data);
+}
+
#define IWL_MVM_COMMON_OPS \
/* these could be differentiated */ \
.async_cb = iwl_mvm_async_cb, \
@@ -1424,7 +1433,8 @@ static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
.nic_config = iwl_mvm_nic_config, \
/* as we only register one, these MUST be common! */ \
.start = iwl_op_mode_mvm_start, \
- .stop = iwl_op_mode_mvm_stop
+ .stop = iwl_op_mode_mvm_stop, \
+ .time_point = iwl_op_mode_mvm_time_point

static const struct iwl_op_mode_ops iwl_mvm_ops = {
IWL_MVM_COMMON_OPS,
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
index 70515550c91e..0e55aacd6175 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
@@ -198,6 +198,10 @@ void iwl_trans_pcie_gen2_stop_device(struct iwl_trans *trans)
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
bool was_in_rfkill;

+ iwl_op_mode_time_point(trans->op_mode,
+ IWL_FW_INI_TIME_POINT_HOST_DEVICE_DISABLE,
+ NULL);
+
mutex_lock(&trans_pcie->mutex);
trans_pcie->opmode_down = true;
was_in_rfkill = test_bit(STATUS_RFKILL_OPMODE, &trans->status);
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index c0d2221a18a9..c9e0cca1f903 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -1380,6 +1380,10 @@ static void iwl_trans_pcie_stop_device(struct iwl_trans *trans)
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
bool was_in_rfkill;

+ iwl_op_mode_time_point(trans->op_mode,
+ IWL_FW_INI_TIME_POINT_HOST_DEVICE_DISABLE,
+ NULL);
+
mutex_lock(&trans_pcie->mutex);
trans_pcie->opmode_down = true;
was_in_rfkill = test_bit(STATUS_RFKILL_OPMODE, &trans->status);
--
2.30.0