Currently there is no way to collect firmware log because firmware
does not send it to host. Also host does not handle WMI_DIAG_EVENTID
which is used by firmware to upload firmware log.
So add support for it by firstly enabling firmware log upload via a
QMI message, and secondly processing WMI DIAG event to expose it to
userspace via trace event.
This change applies to both WCN7850 and QCN9274.
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
Signed-off-by: Baochen Qiang <quic_bqiang@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath12k/qmi.c | 93 +++++++++++++++++++++++++
drivers/net/wireless/ath/ath12k/qmi.h | 17 ++++-
drivers/net/wireless/ath/ath12k/trace.h | 29 +++++++-
drivers/net/wireless/ath/ath12k/wmi.c | 11 ++-
4 files changed, 147 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/ath/ath12k/qmi.c b/drivers/net/wireless/ath/ath12k/qmi.c
index c4c7f31a91cd..7f4c92540b20 100644
--- a/drivers/net/wireless/ath/ath12k/qmi.c
+++ b/drivers/net/wireless/ath/ath12k/qmi.c
@@ -1893,6 +1893,50 @@ static const struct qmi_elem_info qmi_wlanfw_fw_ready_ind_msg_v01_ei[] = {
},
};
+static const struct qmi_elem_info qmi_wlanfw_wlan_ini_req_msg_v01_ei[] = {
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size = sizeof(u8),
+ .array_type = NO_ARRAY,
+ .tlv_type = 0x10,
+ .offset = offsetof(struct qmi_wlanfw_wlan_ini_req_msg_v01,
+ enablefwlog_valid),
+ },
+ {
+ .data_type = QMI_UNSIGNED_1_BYTE,
+ .elem_len = 1,
+ .elem_size = sizeof(u8),
+ .array_type = NO_ARRAY,
+ .tlv_type = 0x10,
+ .offset = offsetof(struct qmi_wlanfw_wlan_ini_req_msg_v01,
+ enablefwlog),
+ },
+ {
+ .data_type = QMI_EOTI,
+ .array_type = NO_ARRAY,
+ .tlv_type = QMI_COMMON_TLV_TYPE,
+ },
+};
+
+static const struct qmi_elem_info qmi_wlanfw_wlan_ini_resp_msg_v01_ei[] = {
+ {
+ .data_type = QMI_STRUCT,
+ .elem_len = 1,
+ .elem_size = sizeof(struct qmi_response_type_v01),
+ .array_type = NO_ARRAY,
+ .tlv_type = 0x02,
+ .offset = offsetof(struct qmi_wlanfw_wlan_ini_resp_msg_v01,
+ resp),
+ .ei_array = qmi_response_type_v01_ei,
+ },
+ {
+ .data_type = QMI_EOTI,
+ .array_type = NO_ARRAY,
+ .tlv_type = QMI_COMMON_TLV_TYPE,
+ },
+};
+
static void ath12k_host_cap_parse_mlo(struct qmi_wlanfw_host_cap_req_msg_v01 *req)
{
req->mlo_capable_valid = 1;
@@ -2721,6 +2765,49 @@ static int ath12k_qmi_wlanfw_wlan_cfg_send(struct ath12k_base *ab)
return ret;
}
+static int ath12k_qmi_wlanfw_wlan_ini_send(struct ath12k_base *ab, bool enable)
+{
+ int ret;
+ struct qmi_txn txn;
+ struct qmi_wlanfw_wlan_ini_req_msg_v01 req = {};
+ struct qmi_wlanfw_wlan_ini_resp_msg_v01 resp = {};
+
+ req.enablefwlog_valid = true;
+ req.enablefwlog = enable ? 1 : 0;
+
+ ret = qmi_txn_init(&ab->qmi.handle, &txn,
+ qmi_wlanfw_wlan_ini_resp_msg_v01_ei, &resp);
+ if (ret < 0)
+ goto out;
+
+ ret = qmi_send_request(&ab->qmi.handle, NULL, &txn,
+ ATH12K_QMI_WLANFW_WLAN_INI_REQ_V01,
+ QMI_WLANFW_WLAN_INI_REQ_MSG_V01_MAX_LEN,
+ qmi_wlanfw_wlan_ini_req_msg_v01_ei, &req);
+ if (ret < 0) {
+ qmi_txn_cancel(&txn);
+ ath12k_warn(ab, "qmi failed to send wlan ini request, err = %d\n",
+ ret);
+ goto out;
+ }
+
+ ret = qmi_txn_wait(&txn, msecs_to_jiffies(ATH12K_QMI_WLANFW_TIMEOUT_MS));
+ if (ret < 0) {
+ ath12k_warn(ab, "qmi failed wlan ini request, err = %d\n", ret);
+ goto out;
+ }
+
+ if (resp.resp.result != QMI_RESULT_SUCCESS_V01) {
+ ath12k_warn(ab, "qmi wlan ini request failed, result: %d, err: %d\n",
+ resp.resp.result, resp.resp.error);
+ ret = -EINVAL;
+ goto out;
+ }
+
+out:
+ return ret;
+}
+
void ath12k_qmi_firmware_stop(struct ath12k_base *ab)
{
int ret;
@@ -2737,6 +2824,12 @@ int ath12k_qmi_firmware_start(struct ath12k_base *ab,
{
int ret;
+ ret = ath12k_qmi_wlanfw_wlan_ini_send(ab, true);
+ if (ret < 0) {
+ ath12k_warn(ab, "qmi failed to send wlan fw ini:%d\n", ret);
+ return ret;
+ }
+
ret = ath12k_qmi_wlanfw_wlan_cfg_send(ab);
if (ret < 0) {
ath12k_warn(ab, "qmi failed to send wlan cfg:%d\n", ret);
diff --git a/drivers/net/wireless/ath/ath12k/qmi.h b/drivers/net/wireless/ath/ath12k/qmi.h
index e25bbaa125e8..86fc282ab7b0 100644
--- a/drivers/net/wireless/ath/ath12k/qmi.h
+++ b/drivers/net/wireless/ath/ath12k/qmi.h
@@ -1,7 +1,7 @@
/* SPDX-License-Identifier: BSD-3-Clause-Clear */
/*
* Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#ifndef ATH12K_QMI_H
@@ -559,6 +559,21 @@ struct qmi_wlanfw_wlan_cfg_resp_msg_v01 {
struct qmi_response_type_v01 resp;
};
+#define ATH12K_QMI_WLANFW_WLAN_INI_REQ_V01 0x002F
+#define ATH12K_QMI_WLANFW_WLAN_INI_RESP_V01 0x002F
+#define QMI_WLANFW_WLAN_INI_REQ_MSG_V01_MAX_LEN 7
+#define QMI_WLANFW_WLAN_INI_RESP_MSG_V01_MAX_LEN 7
+
+struct qmi_wlanfw_wlan_ini_req_msg_v01 {
+ /* Must be set to true if enablefwlog is being passed */
+ u8 enablefwlog_valid;
+ u8 enablefwlog;
+};
+
+struct qmi_wlanfw_wlan_ini_resp_msg_v01 {
+ struct qmi_response_type_v01 resp;
+};
+
int ath12k_qmi_firmware_start(struct ath12k_base *ab,
u32 mode);
void ath12k_qmi_firmware_stop(struct ath12k_base *ab);
diff --git a/drivers/net/wireless/ath/ath12k/trace.h b/drivers/net/wireless/ath/ath12k/trace.h
index f72096684b74..240737e1542d 100644
--- a/drivers/net/wireless/ath/ath12k/trace.h
+++ b/drivers/net/wireless/ath/ath12k/trace.h
@@ -1,7 +1,7 @@
/* SPDX-License-Identifier: BSD-3-Clause-Clear */
/*
* Copyright (c) 2019-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2022, 2024 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#if !defined(_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
@@ -140,6 +140,33 @@ TRACE_EVENT(ath12k_htt_rxdesc,
)
);
+TRACE_EVENT(ath12k_wmi_diag,
+ TP_PROTO(struct ath12k_base *ab, const void *data, size_t len),
+
+ TP_ARGS(ab, data, len),
+
+ TP_STRUCT__entry(
+ __string(device, dev_name(ab->dev))
+ __string(driver, dev_driver_string(ab->dev))
+ __field(u16, len)
+ __dynamic_array(u8, data, len)
+ ),
+
+ TP_fast_assign(
+ __assign_str(device, dev_name(ab->dev));
+ __assign_str(driver, dev_driver_string(ab->dev));
+ __entry->len = len;
+ memcpy(__get_dynamic_array(data), data, len);
+ ),
+
+ TP_printk(
+ "%s %s tlv diag len %d",
+ __get_str(driver),
+ __get_str(device),
+ __entry->len
+ )
+);
+
#endif /* _TRACE_H_ || TRACE_HEADER_MULTI_READ*/
/* we don't want to use include/trace/events */
diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c
index 553d2566b3f7..3776f9ea94db 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <linux/skbuff.h>
#include <linux/ctype.h>
@@ -6661,6 +6661,12 @@ static void ath12k_rfkill_state_change_event(struct ath12k_base *ab,
kfree(tb);
}
+static void
+ath12k_wmi_diag_event(struct ath12k_base *ab, struct sk_buff *skb)
+{
+ trace_ath12k_wmi_diag(ab, skb->data, skb->len);
+}
+
static void ath12k_wmi_op_rx(struct ath12k_base *ab, struct sk_buff *skb)
{
struct wmi_cmd_hdr *cmd_hdr;
@@ -6771,6 +6777,9 @@ static void ath12k_wmi_op_rx(struct ath12k_base *ab, struct sk_buff *skb)
case WMI_VDEV_DELETE_RESP_EVENTID:
ath12k_vdev_delete_resp_event(ab, skb);
break;
+ case WMI_DIAG_EVENTID:
+ ath12k_wmi_diag_event(ab, skb);
+ break;
/* TODO: Add remaining events */
default:
ath12k_dbg(ab, ATH12K_DBG_WMI, "Unknown eventid: 0x%x\n", id);
base-commit: b7e181d8d8483ade26ce3b15b957ca5bf9653b72
--
2.25.1
