[PATCH 1/4] wifi: ath12k: Add support to enable debugfs_htt_stats
Ramya Gnanasekar
quic_rgnanase at quicinc.com
Mon Apr 29 10:38:22 PDT 2024
From: Dinesh Karthikeyan <quic_dinek at quicinc.com>
Create debugfs_htt_stats file when ath12k debugfs support is enabled.
Add basic ath12k_debugfs_htt_stats_init and handle htt_stats_type
file operations.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Signed-off-by: Dinesh Karthikeyan <quic_dinek at quicinc.com>
Co-developed-by: Ramya Gnanasekar <quic_rgnanase at quicinc.com>
Signed-off-by: Ramya Gnanasekar <quic_rgnanase at quicinc.com>
---
drivers/net/wireless/ath/ath12k/Makefile | 2 +-
drivers/net/wireless/ath/ath12k/core.h | 9 +++
drivers/net/wireless/ath/ath12k/debugfs.c | 3 +
.../wireless/ath/ath12k/debugfs_htt_stats.c | 74 +++++++++++++++++++
.../wireless/ath/ath12k/debugfs_htt_stats.h | 20 +++++
5 files changed, 107 insertions(+), 1 deletion(-)
create mode 100644 drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c
create mode 100644 drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h
diff --git a/drivers/net/wireless/ath/ath12k/Makefile b/drivers/net/wireless/ath/ath12k/Makefile
index d42480db7463..3491b8b8a1e2 100644
--- a/drivers/net/wireless/ath/ath12k/Makefile
+++ b/drivers/net/wireless/ath/ath12k/Makefile
@@ -23,7 +23,7 @@ ath12k-y += core.o \
fw.o \
p2p.o
-ath12k-$(CONFIG_ATH12K_DEBUGFS) += debugfs.o
+ath12k-$(CONFIG_ATH12K_DEBUGFS) += debugfs.o debugfs_htt_stats.o
ath12k-$(CONFIG_ACPI) += acpi.o
ath12k-$(CONFIG_ATH12K_TRACING) += trace.o
diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h
index 47dde4401210..b7aa2d69aed3 100644
--- a/drivers/net/wireless/ath/ath12k/core.h
+++ b/drivers/net/wireless/ath/ath12k/core.h
@@ -27,6 +27,7 @@
#include "dbring.h"
#include "fw.h"
#include "acpi.h"
+#include "debugfs_htt_stats.h"
#define SM(_v, _f) (((_v) << _f##_LSB) & _f##_MASK)
@@ -477,8 +478,16 @@ struct ath12k_fw_stats {
struct list_head bcn;
};
+struct ath12k_dbg_htt_stats {
+ enum ath12k_dbg_htt_ext_stats_type type;
+ u32 cfg_param[4];
+ /* protects shared stats req buffer */
+ spinlock_t lock;
+};
+
struct ath12k_debug {
struct dentry *debugfs_pdev;
+ struct ath12k_dbg_htt_stats htt_stats;
};
struct ath12k_per_peer_tx_stats {
diff --git a/drivers/net/wireless/ath/ath12k/debugfs.c b/drivers/net/wireless/ath/ath12k/debugfs.c
index 8d8ba951093b..30a80f04d824 100644
--- a/drivers/net/wireless/ath/ath12k/debugfs.c
+++ b/drivers/net/wireless/ath/ath12k/debugfs.c
@@ -6,6 +6,7 @@
#include "core.h"
#include "debugfs.h"
+#include "debugfs_htt_stats.h"
static ssize_t ath12k_write_simulate_radar(struct file *file,
const char __user *user_buf,
@@ -87,4 +88,6 @@ void ath12k_debugfs_register(struct ath12k *ar)
ar->debug.debugfs_pdev, ar,
&fops_simulate_radar);
}
+
+ ath12k_debugfs_htt_stats_init(ar);
}
diff --git a/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c
new file mode 100644
index 000000000000..4a58362bdaea
--- /dev/null
+++ b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include <linux/vmalloc.h>
+#include "core.h"
+#include "debug.h"
+#include "debugfs_htt_stats.h"
+
+static ssize_t ath12k_read_htt_stats_type(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ath12k *ar = file->private_data;
+ char buf[32];
+ size_t len;
+
+ len = scnprintf(buf, sizeof(buf), "%u\n", ar->debug.htt_stats.type);
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t ath12k_write_htt_stats_type(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ath12k *ar = file->private_data;
+ enum ath12k_dbg_htt_ext_stats_type type;
+ unsigned int cfg_param[4] = {0};
+ int num_args;
+
+ char *buf __free(kfree) = kzalloc(count, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ if (copy_from_user(buf, user_buf, count))
+ return -EFAULT;
+
+ num_args = sscanf(buf, "%u %u %u %u %u\n", &type, &cfg_param[0],
+ &cfg_param[1], &cfg_param[2], &cfg_param[3]);
+ if (!num_args || num_args > 5)
+ return -EINVAL;
+
+ if (type >= ATH12K_DBG_HTT_NUM_EXT_STATS)
+ return -E2BIG;
+
+ if (type == ATH12K_DBG_HTT_EXT_STATS_RESET)
+ return -EPERM;
+
+ ar->debug.htt_stats.type = type;
+ ar->debug.htt_stats.cfg_param[0] = cfg_param[0];
+ ar->debug.htt_stats.cfg_param[1] = cfg_param[1];
+ ar->debug.htt_stats.cfg_param[2] = cfg_param[2];
+ ar->debug.htt_stats.cfg_param[3] = cfg_param[3];
+
+ return count;
+}
+
+static const struct file_operations fops_htt_stats_type = {
+ .read = ath12k_read_htt_stats_type,
+ .write = ath12k_write_htt_stats_type,
+ .open = simple_open,
+ .owner = THIS_MODULE,
+ .llseek = default_llseek,
+};
+
+void ath12k_debugfs_htt_stats_init(struct ath12k *ar)
+{
+ spin_lock_init(&ar->debug.htt_stats.lock);
+ debugfs_create_file("htt_stats_type", 0600, ar->debug.debugfs_pdev,
+ ar, &fops_htt_stats_type);
+}
diff --git a/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h
new file mode 100644
index 000000000000..6bd34d72b407
--- /dev/null
+++ b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
+/*
+ * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#ifndef DEBUG_HTT_STATS_H
+#define DEBUG_HTT_STATS_H
+
+void ath12k_debugfs_htt_stats_init(struct ath12k *ar);
+
+/* htt_dbg_ext_stats_type */
+enum ath12k_dbg_htt_ext_stats_type {
+ ATH12K_DBG_HTT_EXT_STATS_RESET,
+
+ /* keep this last */
+ ATH12K_DBG_HTT_NUM_EXT_STATS,
+};
+
+#endif
--
2.34.1
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