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-rw-r--r--drivers/net/wireless/ath/ath11k/core.c6
-rw-r--r--drivers/net/wireless/ath/ath11k/core.h1
-rw-r--r--drivers/net/wireless/ath/ath11k/dbring.c19
-rw-r--r--drivers/net/wireless/ath/ath11k/debugfs.c221
-rw-r--r--drivers/net/wireless/ath/ath11k/debugfs.h41
-rw-r--r--drivers/net/wireless/ath/ath11k/hw.h1
6 files changed, 283 insertions, 6 deletions
diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c
index 7c508e9baa6d..5d570a2cc2a5 100644
--- a/drivers/net/wireless/ath/ath11k/core.c
+++ b/drivers/net/wireless/ath/ath11k/core.c
@@ -99,6 +99,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.supports_rssi_stats = false,
.fw_wmi_diag_event = false,
.current_cc_support = false,
+ .dbr_debug_support = true,
},
{
.hw_rev = ATH11K_HW_IPQ6018_HW10,
@@ -164,6 +165,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.supports_rssi_stats = false,
.fw_wmi_diag_event = false,
.current_cc_support = false,
+ .dbr_debug_support = true,
},
{
.name = "qca6390 hw2.0",
@@ -228,6 +230,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.supports_rssi_stats = true,
.fw_wmi_diag_event = true,
.current_cc_support = true,
+ .dbr_debug_support = false,
},
{
.name = "qcn9074 hw1.0",
@@ -292,6 +295,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.supports_rssi_stats = false,
.fw_wmi_diag_event = false,
.current_cc_support = false,
+ .dbr_debug_support = true,
},
{
.name = "wcn6855 hw2.0",
@@ -356,6 +360,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.supports_rssi_stats = true,
.fw_wmi_diag_event = true,
.current_cc_support = true,
+ .dbr_debug_support = false,
},
{
.name = "wcn6855 hw2.1",
@@ -419,6 +424,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.supports_rssi_stats = true,
.fw_wmi_diag_event = true,
.current_cc_support = true,
+ .dbr_debug_support = false,
},
};
diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h
index d2fc7a7a98f4..c0228e91a596 100644
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -461,6 +461,7 @@ struct ath11k_debug {
u32 rx_filter;
u32 mem_offset;
u32 module_id_bitmap[MAX_MODULE_ID_BITMAP_WORDS];
+ struct ath11k_debug_dbr *dbr_debug[WMI_DIRECT_BUF_MAX];
};
struct ath11k_per_peer_tx_stats {
diff --git a/drivers/net/wireless/ath/ath11k/dbring.c b/drivers/net/wireless/ath/ath11k/dbring.c
index eda67ebfc4c2..2107ec05d14f 100644
--- a/drivers/net/wireless/ath/ath11k/dbring.c
+++ b/drivers/net/wireless/ath/ath11k/dbring.c
@@ -37,7 +37,8 @@ static void ath11k_dbring_fill_magic_value(struct ath11k *ar,
static int ath11k_dbring_bufs_replenish(struct ath11k *ar,
struct ath11k_dbring *ring,
- struct ath11k_dbring_element *buff)
+ struct ath11k_dbring_element *buff,
+ enum wmi_direct_buffer_module id)
{
struct ath11k_base *ab = ar->ab;
struct hal_srng *srng;
@@ -84,6 +85,7 @@ static int ath11k_dbring_bufs_replenish(struct ath11k *ar,
ath11k_hal_rx_buf_addr_info_set(desc, paddr, cookie, 0);
+ ath11k_debugfs_add_dbring_entry(ar, id, ATH11K_DBG_DBR_EVENT_REPLENISH, srng);
ath11k_hal_srng_access_end(ab, srng);
return 0;
@@ -101,7 +103,8 @@ err:
}
static int ath11k_dbring_fill_bufs(struct ath11k *ar,
- struct ath11k_dbring *ring)
+ struct ath11k_dbring *ring,
+ enum wmi_direct_buffer_module id)
{
struct ath11k_dbring_element *buff;
struct hal_srng *srng;
@@ -129,7 +132,7 @@ static int ath11k_dbring_fill_bufs(struct ath11k *ar,
kfree(buff);
break;
}
- ret = ath11k_dbring_bufs_replenish(ar, ring, buff);
+ ret = ath11k_dbring_bufs_replenish(ar, ring, buff, id);
if (ret) {
ath11k_warn(ar->ab, "failed to replenish db ring num_remain %d req_ent %d\n",
num_remain, req_entries);
@@ -210,7 +213,7 @@ int ath11k_dbring_buf_setup(struct ath11k *ar,
ring->hp_addr = ath11k_hal_srng_get_hp_addr(ar->ab, srng);
ring->tp_addr = ath11k_hal_srng_get_tp_addr(ar->ab, srng);
- ret = ath11k_dbring_fill_bufs(ar, ring);
+ ret = ath11k_dbring_fill_bufs(ar, ring, db_cap->id);
return ret;
}
@@ -270,7 +273,7 @@ int ath11k_dbring_buffer_release_event(struct ath11k_base *ab,
struct ath11k_buffer_addr desc;
u8 *vaddr_unalign;
u32 num_entry, num_buff_reaped;
- u8 pdev_idx, rbm;
+ u8 pdev_idx, rbm, module_id;
u32 cookie;
int buf_id;
int size;
@@ -278,6 +281,7 @@ int ath11k_dbring_buffer_release_event(struct ath11k_base *ab,
int ret = 0;
pdev_idx = ev->fixed.pdev_id;
+ module_id = ev->fixed.module_id;
if (pdev_idx >= ab->num_radios) {
ath11k_warn(ab, "Invalid pdev id %d\n", pdev_idx);
@@ -346,6 +350,9 @@ int ath11k_dbring_buffer_release_event(struct ath11k_base *ab,
dma_unmap_single(ab->dev, buff->paddr, ring->buf_sz,
DMA_FROM_DEVICE);
+ ath11k_debugfs_add_dbring_entry(ar, module_id,
+ ATH11K_DBG_DBR_EVENT_RX, srng);
+
if (ring->handler) {
vaddr_unalign = buff->payload;
handler_data.data = PTR_ALIGN(vaddr_unalign,
@@ -357,7 +364,7 @@ int ath11k_dbring_buffer_release_event(struct ath11k_base *ab,
buff->paddr = 0;
memset(buff->payload, 0, size);
- ath11k_dbring_bufs_replenish(ar, ring, buff);
+ ath11k_dbring_bufs_replenish(ar, ring, buff, module_id);
}
spin_unlock_bh(&srng->lock);
diff --git a/drivers/net/wireless/ath/ath11k/debugfs.c b/drivers/net/wireless/ath/ath11k/debugfs.c
index c0ebdb1262f0..a82266c8befc 100644
--- a/drivers/net/wireless/ath/ath11k/debugfs.c
+++ b/drivers/net/wireless/ath/ath11k/debugfs.c
@@ -52,6 +52,45 @@ static const char *htt_bp_lmac_ring[HTT_SW_LMAC_RING_IDX_MAX] = {
"MONITOR_DEST_RING",
};
+void ath11k_debugfs_add_dbring_entry(struct ath11k *ar,
+ enum wmi_direct_buffer_module id,
+ enum ath11k_dbg_dbr_event event,
+ struct hal_srng *srng)
+{
+ struct ath11k_debug_dbr *dbr_debug;
+ struct ath11k_dbg_dbr_data *dbr_data;
+ struct ath11k_dbg_dbr_entry *entry;
+
+ if (id >= WMI_DIRECT_BUF_MAX || event >= ATH11K_DBG_DBR_EVENT_MAX)
+ return;
+
+ dbr_debug = ar->debug.dbr_debug[id];
+ if (!dbr_debug)
+ return;
+
+ if (!dbr_debug->dbr_debug_enabled)
+ return;
+
+ dbr_data = &dbr_debug->dbr_dbg_data;
+
+ spin_lock_bh(&dbr_data->lock);
+
+ if (dbr_data->entries) {
+ entry = &dbr_data->entries[dbr_data->dbr_debug_idx];
+ entry->hp = srng->u.src_ring.hp;
+ entry->tp = *srng->u.src_ring.tp_addr;
+ entry->timestamp = jiffies;
+ entry->event = event;
+
+ dbr_data->dbr_debug_idx++;
+ if (dbr_data->dbr_debug_idx ==
+ dbr_data->num_ring_debug_entries)
+ dbr_data->dbr_debug_idx = 0;
+ }
+
+ spin_unlock_bh(&dbr_data->lock);
+}
+
static void ath11k_fw_stats_pdevs_free(struct list_head *head)
{
struct ath11k_fw_stats_pdev *i, *tmp;
@@ -1176,6 +1215,169 @@ static const struct file_operations fops_simulate_radar = {
.open = simple_open
};
+static ssize_t ath11k_debug_dump_dbr_entries(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ath11k_dbg_dbr_data *dbr_dbg_data = file->private_data;
+ static const char * const event_id_to_string[] = {"empty", "Rx", "Replenish"};
+ int size = ATH11K_DEBUG_DBR_ENTRIES_MAX * 100;
+ char *buf;
+ int i, ret;
+ int len = 0;
+
+ buf = kzalloc(size, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ len += scnprintf(buf + len, size - len,
+ "-----------------------------------------\n");
+ len += scnprintf(buf + len, size - len,
+ "| idx | hp | tp | timestamp | event |\n");
+ len += scnprintf(buf + len, size - len,
+ "-----------------------------------------\n");
+
+ spin_lock_bh(&dbr_dbg_data->lock);
+
+ for (i = 0; i < dbr_dbg_data->num_ring_debug_entries; i++) {
+ len += scnprintf(buf + len, size - len,
+ "|%4u|%8u|%8u|%11llu|%8s|\n", i,
+ dbr_dbg_data->entries[i].hp,
+ dbr_dbg_data->entries[i].tp,
+ dbr_dbg_data->entries[i].timestamp,
+ event_id_to_string[dbr_dbg_data->entries[i].event]);
+ }
+
+ spin_unlock_bh(&dbr_dbg_data->lock);
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+ kfree(buf);
+
+ return ret;
+}
+
+static const struct file_operations fops_debug_dump_dbr_entries = {
+ .read = ath11k_debug_dump_dbr_entries,
+ .open = simple_open,
+ .owner = THIS_MODULE,
+ .llseek = default_llseek,
+};
+
+static void ath11k_debugfs_dbr_dbg_destroy(struct ath11k *ar, int dbr_id)
+{
+ struct ath11k_debug_dbr *dbr_debug;
+ struct ath11k_dbg_dbr_data *dbr_dbg_data;
+
+ if (!ar->debug.dbr_debug[dbr_id])
+ return;
+
+ dbr_debug = ar->debug.dbr_debug[dbr_id];
+ dbr_dbg_data = &dbr_debug->dbr_dbg_data;
+
+ debugfs_remove_recursive(dbr_debug->dbr_debugfs);
+ kfree(dbr_dbg_data->entries);
+ kfree(dbr_debug);
+ ar->debug.dbr_debug[dbr_id] = NULL;
+}
+
+static int ath11k_debugfs_dbr_dbg_init(struct ath11k *ar, int dbr_id)
+{
+ struct ath11k_debug_dbr *dbr_debug;
+ struct ath11k_dbg_dbr_data *dbr_dbg_data;
+ static const char * const dbr_id_to_str[] = {"spectral", "CFR"};
+
+ if (ar->debug.dbr_debug[dbr_id])
+ return 0;
+
+ ar->debug.dbr_debug[dbr_id] = kzalloc(sizeof(*dbr_debug),
+ GFP_KERNEL);
+
+ if (!ar->debug.dbr_debug[dbr_id])
+ return -ENOMEM;
+
+ dbr_debug = ar->debug.dbr_debug[dbr_id];
+ dbr_dbg_data = &dbr_debug->dbr_dbg_data;
+
+ if (dbr_debug->dbr_debugfs)
+ return 0;
+
+ dbr_debug->dbr_debugfs = debugfs_create_dir(dbr_id_to_str[dbr_id],
+ ar->debug.debugfs_pdev);
+ if (IS_ERR_OR_NULL(dbr_debug->dbr_debugfs)) {
+ if (IS_ERR(dbr_debug->dbr_debugfs))
+ return PTR_ERR(dbr_debug->dbr_debugfs);
+ return -ENOMEM;
+ }
+
+ dbr_debug->dbr_debug_enabled = true;
+ dbr_dbg_data->num_ring_debug_entries = ATH11K_DEBUG_DBR_ENTRIES_MAX;
+ dbr_dbg_data->dbr_debug_idx = 0;
+ dbr_dbg_data->entries = kcalloc(ATH11K_DEBUG_DBR_ENTRIES_MAX,
+ sizeof(struct ath11k_dbg_dbr_entry),
+ GFP_KERNEL);
+ if (!dbr_dbg_data->entries)
+ return -ENOMEM;
+
+ spin_lock_init(&dbr_dbg_data->lock);
+
+ debugfs_create_file("dump_dbr_debug", 0444, dbr_debug->dbr_debugfs,
+ dbr_dbg_data, &fops_debug_dump_dbr_entries);
+
+ return 0;
+}
+
+static ssize_t ath11k_debugfs_write_enable_dbr_dbg(struct file *file,
+ const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct ath11k *ar = file->private_data;
+ char buf[32] = {0};
+ u32 dbr_id, enable;
+ int ret;
+
+ mutex_lock(&ar->conf_mutex);
+
+ if (ar->state != ATH11K_STATE_ON) {
+ ret = -ENETDOWN;
+ goto out;
+ }
+
+ ret = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, ubuf, count);
+ if (ret < 0)
+ goto out;
+
+ buf[ret] = '\0';
+ ret = sscanf(buf, "%u %u", &dbr_id, &enable);
+ if (ret != 2 || dbr_id > 1 || enable > 1) {
+ ret = -EINVAL;
+ ath11k_warn(ar->ab, "usage: echo <dbr_id> <val> dbr_id:0-Spectral 1-CFR val:0-disable 1-enable\n");
+ goto out;
+ }
+
+ if (enable) {
+ ret = ath11k_debugfs_dbr_dbg_init(ar, dbr_id);
+ if (ret) {
+ ath11k_warn(ar->ab, "db ring module debugfs init failed: %d\n",
+ ret);
+ goto out;
+ }
+ } else {
+ ath11k_debugfs_dbr_dbg_destroy(ar, dbr_id);
+ }
+
+ ret = count;
+out:
+ mutex_unlock(&ar->conf_mutex);
+ return ret;
+}
+
+static const struct file_operations fops_dbr_debug = {
+ .write = ath11k_debugfs_write_enable_dbr_dbg,
+ .open = simple_open,
+ .owner = THIS_MODULE,
+ .llseek = default_llseek,
+};
+
int ath11k_debugfs_register(struct ath11k *ar)
{
struct ath11k_base *ab = ar->ab;
@@ -1218,11 +1420,30 @@ int ath11k_debugfs_register(struct ath11k *ar)
&ar->dfs_block_radar_events);
}
+ if (ab->hw_params.dbr_debug_support)
+ debugfs_create_file("enable_dbr_debug", 0200, ar->debug.debugfs_pdev,
+ ar, &fops_dbr_debug);
+
return 0;
}
void ath11k_debugfs_unregister(struct ath11k *ar)
{
+ struct ath11k_debug_dbr *dbr_debug;
+ struct ath11k_dbg_dbr_data *dbr_dbg_data;
+ int i;
+
+ for (i = 0; i < WMI_DIRECT_BUF_MAX; i++) {
+ dbr_debug = ar->debug.dbr_debug[i];
+ if (!dbr_debug)
+ continue;
+
+ dbr_dbg_data = &dbr_debug->dbr_dbg_data;
+ kfree(dbr_dbg_data->entries);
+ debugfs_remove_recursive(dbr_debug->dbr_debugfs);
+ kfree(dbr_debug);
+ ar->debug.dbr_debug[i] = NULL;
+ }
}
static ssize_t ath11k_write_twt_add_dialog(struct file *file,
diff --git a/drivers/net/wireless/ath/ath11k/debugfs.h b/drivers/net/wireless/ath/ath11k/debugfs.h
index ef8ed57bb820..30c00cb28311 100644
--- a/drivers/net/wireless/ath/ath11k/debugfs.h
+++ b/drivers/net/wireless/ath/ath11k/debugfs.h
@@ -47,6 +47,36 @@ enum ath11k_dbg_htt_ext_stats_type {
ATH11K_DBG_HTT_NUM_EXT_STATS,
};
+#define ATH11K_DEBUG_DBR_ENTRIES_MAX 512
+
+enum ath11k_dbg_dbr_event {
+ ATH11K_DBG_DBR_EVENT_INVALID,
+ ATH11K_DBG_DBR_EVENT_RX,
+ ATH11K_DBG_DBR_EVENT_REPLENISH,
+ ATH11K_DBG_DBR_EVENT_MAX,
+};
+
+struct ath11k_dbg_dbr_entry {
+ u32 hp;
+ u32 tp;
+ u64 timestamp;
+ enum ath11k_dbg_dbr_event event;
+};
+
+struct ath11k_dbg_dbr_data {
+ /* protects ath11k_db_ring_debug data */
+ spinlock_t lock;
+ struct ath11k_dbg_dbr_entry *entries;
+ u32 dbr_debug_idx;
+ u32 num_ring_debug_entries;
+};
+
+struct ath11k_debug_dbr {
+ struct ath11k_dbg_dbr_data dbr_dbg_data;
+ struct dentry *dbr_debugfs;
+ bool dbr_debug_enabled;
+};
+
struct debug_htt_stats_req {
bool done;
u8 pdev_id;
@@ -278,6 +308,10 @@ static inline int ath11k_debugfs_rx_filter(struct ath11k *ar)
int ath11k_debugfs_add_interface(struct ath11k_vif *arvif);
void ath11k_debugfs_remove_interface(struct ath11k_vif *arvif);
+void ath11k_debugfs_add_dbring_entry(struct ath11k *ar,
+ enum wmi_direct_buffer_module id,
+ enum ath11k_dbg_dbr_event event,
+ struct hal_srng *srng);
#else
static inline int ath11k_debugfs_soc_create(struct ath11k_base *ab)
@@ -361,6 +395,13 @@ static inline void ath11k_debugfs_remove_interface(struct ath11k_vif *arvif)
{
}
+static inline void
+ath11k_debugfs_add_dbring_entry(struct ath11k *ar,
+ enum wmi_direct_buffer_module id,
+ enum ath11k_dbg_dbr_event event,
+ struct hal_srng *srng)
+{
+}
#endif /* CONFIG_ATH11K_DEBUGFS*/
#endif /* _ATH11K_DEBUGFS_H_ */
diff --git a/drivers/net/wireless/ath/ath11k/hw.h b/drivers/net/wireless/ath/ath11k/hw.h
index c10e1a01fb02..27ca4a9c20fc 100644
--- a/drivers/net/wireless/ath/ath11k/hw.h
+++ b/drivers/net/wireless/ath/ath11k/hw.h
@@ -193,6 +193,7 @@ struct ath11k_hw_params {
bool supports_rssi_stats;
bool fw_wmi_diag_event;
bool current_cc_support;
+ bool dbr_debug_support;
};
struct ath11k_hw_ops {
generated by cgit v1.2.3 (git 2.39.1) at 2025-06-19 13:22:54 +0000