wifi: ath12k: print device dp stats in debugfs

Print the data path related device specific stats in debugfs.
These device_dp_stats are exposed in the ath12k debugfs directory.

Output of device_dp_stats:
root@CDCWLEX0799743-LIN:/home/qctest#
cat /sys/kernel/debug/ath12k/pci-0000\:58\:00.0/device_dp_stats
DEVICE RX STATS:

err ring pkts: 0
Invalid RBM: 0

RXDMA errors:
Overflow: 0
MPDU len: 0
FCS: 0
Decrypt: 0
TKIP MIC: 0
Unencrypt: 0
MSDU len: 0
MSDU limit: 0
WiFi parse: 0
AMSDU parse: 0
SA timeout: 0
DA timeout: 0
Flow timeout: 0
Flush req: 0
AMSDU frag: 0
Multicast echo: 0
AMSDU mismatch: 0
Unauth WDS: 0
AMSDU or WDS: 0

REO errors:
Desc addr zero: 0
Desc inval: 0
AMPDU in non BA: 0
Non BA dup: 0
BA dup: 0
Frame 2k jump: 0
BAR 2k jump: 0
Frame OOR: 155
BAR OOR: 0
No BA session: 0
Frame SN equal SSN: 0
PN check fail: 0
2k err: 0
PN err: 0
Desc blocked: 0

HAL REO errors:
ring0: 0
ring1: 0
ring2: 0
ring3: 0
ring4: 0
ring5: 0
ring6: 0
ring7: 0

DEVICE TX STATS:

TCL Ring Full Failures:
ring0: 0
ring1: 0
ring2: 0
ring3: 0

Misc Transmit Failures: 0

tx_wbm_rel_source: 0:986 1:0 2:0 3:57 4:0

tqm_rel_reason: 0:1043 1:0 2:0 3:0 4:0 5:0 6:0 7:0 8:0 9:0 10:0 11:0 12:0 13:0 14:0

fw_tx_status: 0:57 1:0 2:0 3:0 4:0 5:0 6:0

tx_enqueued: 0:329 1:145 2:464 3:105

tx_completed: 0:329 1:145 2:464 3:105

radio0 tx_pending: 0

REO Rx Received:
Ring1:  0:201   1:0     2:0
Ring2:  0:0     1:0     2:0
Ring3:  0:6152  1:0     2:0
Ring4:  0:9     1:0     2:0
Ring5:  0:0     1:0     2:0
Ring6:  0:0     1:0     2:0
Ring7:  0:0     1:0     2:0
Ring8:  0:0     1:0     2:0

Rx WBM REL SRC Errors:
TQM:    0:0     1:0     2:0
Rxdma:  0:0     1:0     2:0
Reo:    0:155   1:0     2:0
FW:     0:0     1:0     2:0
SW:     0:0     1:0     2:0

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Vinith Kumar R <quic_vinithku@quicinc.com>
Signed-off-by: Nithyanantham Paramasivam <nithyanantham.paramasivam@oss.qualcomm.com>
Reviewed-by: Mahendran P <quic_mahep@quicinc.com>
Link: https://patch.msgid.link/20250425012802.698914-4-nithyanantham.paramasivam@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>

2 files changed, 195 insertions, 6 deletions

diff --git a/drivers/net/wireless/ath/ath12k/core.c b/drivers/net/wireless/ath/ath12k/core.c
index 3ca9cf12a30b..c12720a74885 100644
--- a/drivers/net/wireless/ath/ath12k/core.c
+++ b/drivers/net/wireless/ath/ath12k/core.c
@@ -811,6 +811,8 @@ static int ath12k_core_soc_create(struct ath12k_base *ab)
 		goto err_qmi_deinit;
 	}
 
+	ath12k_debugfs_pdev_create(ab);
+
 	return 0;
 
 err_qmi_deinit:
diff --git a/drivers/net/wireless/ath/ath12k/debugfs.c b/drivers/net/wireless/ath/ath12k/debugfs.c
index 1f0983c33885..dd624d73b8b2 100644
--- a/drivers/net/wireless/ath/ath12k/debugfs.c
+++ b/drivers/net/wireless/ath/ath12k/debugfs.c
@@ -103,12 +103,6 @@ static const struct file_operations fops_simulate_fw_crash = {
 	.llseek = default_llseek,
 };
 
-void ath12k_debugfs_pdev_create(struct ath12k_base *ab)
-{
-	debugfs_create_file("simulate_fw_crash", 0600, ab->debugfs_soc, ab,
-			    &fops_simulate_fw_crash);
-}
-
 static ssize_t ath12k_write_tpc_stats_type(struct file *file,
 					   const char __user *user_buf,
 					   size_t count, loff_t *ppos)
@@ -1027,6 +1021,199 @@ void ath12k_debugfs_op_vif_add(struct ieee80211_hw *hw,
 			    &ath12k_fops_link_stats);
 }
 
+static ssize_t ath12k_debugfs_dump_device_dp_stats(struct file *file,
+						   char __user *user_buf,
+						   size_t count, loff_t *ppos)
+{
+	struct ath12k_base *ab = file->private_data;
+	struct ath12k_device_dp_stats *device_stats = &ab->device_stats;
+	int len = 0, i, j, ret;
+	struct ath12k *ar;
+	const int size = 4096;
+	static const char *rxdma_err[HAL_REO_ENTR_RING_RXDMA_ECODE_MAX] = {
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_OVERFLOW_ERR] = "Overflow",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_MPDU_LEN_ERR] = "MPDU len",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_FCS_ERR] = "FCS",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_DECRYPT_ERR] = "Decrypt",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_TKIP_MIC_ERR] = "TKIP MIC",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_UNECRYPTED_ERR] = "Unencrypt",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_MSDU_LEN_ERR] = "MSDU len",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_MSDU_LIMIT_ERR] = "MSDU limit",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_WIFI_PARSE_ERR] = "WiFi parse",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_AMSDU_PARSE_ERR] = "AMSDU parse",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_SA_TIMEOUT_ERR] = "SA timeout",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_DA_TIMEOUT_ERR] = "DA timeout",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_FLOW_TIMEOUT_ERR] = "Flow timeout",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_FLUSH_REQUEST_ERR] = "Flush req",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_AMSDU_FRAG_ERR] = "AMSDU frag",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_MULTICAST_ECHO_ERR] = "Multicast echo",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_AMSDU_MISMATCH_ERR] = "AMSDU mismatch",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_UNAUTH_WDS_ERR] = "Unauth WDS",
+		[HAL_REO_ENTR_RING_RXDMA_ECODE_GRPCAST_AMSDU_WDS_ERR] = "AMSDU or WDS"};
+
+	static const char *reo_err[HAL_REO_DEST_RING_ERROR_CODE_MAX] = {
+		[HAL_REO_DEST_RING_ERROR_CODE_DESC_ADDR_ZERO] = "Desc addr zero",
+		[HAL_REO_DEST_RING_ERROR_CODE_DESC_INVALID] = "Desc inval",
+		[HAL_REO_DEST_RING_ERROR_CODE_AMPDU_IN_NON_BA] =  "AMPDU in non BA",
+		[HAL_REO_DEST_RING_ERROR_CODE_NON_BA_DUPLICATE] = "Non BA dup",
+		[HAL_REO_DEST_RING_ERROR_CODE_BA_DUPLICATE] = "BA dup",
+		[HAL_REO_DEST_RING_ERROR_CODE_FRAME_2K_JUMP] = "Frame 2k jump",
+		[HAL_REO_DEST_RING_ERROR_CODE_BAR_2K_JUMP] = "BAR 2k jump",
+		[HAL_REO_DEST_RING_ERROR_CODE_FRAME_OOR] = "Frame OOR",
+		[HAL_REO_DEST_RING_ERROR_CODE_BAR_OOR] = "BAR OOR",
+		[HAL_REO_DEST_RING_ERROR_CODE_NO_BA_SESSION] = "No BA session",
+		[HAL_REO_DEST_RING_ERROR_CODE_FRAME_SN_EQUALS_SSN] = "Frame SN equal SSN",
+		[HAL_REO_DEST_RING_ERROR_CODE_PN_CHECK_FAILED] = "PN check fail",
+		[HAL_REO_DEST_RING_ERROR_CODE_2K_ERR_FLAG_SET] = "2k err",
+		[HAL_REO_DEST_RING_ERROR_CODE_PN_ERR_FLAG_SET] = "PN err",
+		[HAL_REO_DEST_RING_ERROR_CODE_DESC_BLOCKED] = "Desc blocked"};
+
+	static const char *wbm_rel_src[HAL_WBM_REL_SRC_MODULE_MAX] = {
+		[HAL_WBM_REL_SRC_MODULE_TQM] = "TQM",
+		[HAL_WBM_REL_SRC_MODULE_RXDMA] = "Rxdma",
+		[HAL_WBM_REL_SRC_MODULE_REO] = "Reo",
+		[HAL_WBM_REL_SRC_MODULE_FW] = "FW",
+		[HAL_WBM_REL_SRC_MODULE_SW] = "SW"};
+
+	char *buf __free(kfree) = kzalloc(size, GFP_KERNEL);
+
+	if (!buf)
+		return -ENOMEM;
+
+	len += scnprintf(buf + len, size - len, "DEVICE RX STATS:\n\n");
+	len += scnprintf(buf + len, size - len, "err ring pkts: %u\n",
+			 device_stats->err_ring_pkts);
+	len += scnprintf(buf + len, size - len, "Invalid RBM: %u\n\n",
+			 device_stats->invalid_rbm);
+	len += scnprintf(buf + len, size - len, "RXDMA errors:\n");
+
+	for (i = 0; i < HAL_REO_ENTR_RING_RXDMA_ECODE_MAX; i++)
+		len += scnprintf(buf + len, size - len, "%s: %u\n",
+				 rxdma_err[i], device_stats->rxdma_error[i]);
+
+	len += scnprintf(buf + len, size - len, "\nREO errors:\n");
+
+	for (i = 0; i < HAL_REO_DEST_RING_ERROR_CODE_MAX; i++)
+		len += scnprintf(buf + len, size - len, "%s: %u\n",
+				 reo_err[i], device_stats->reo_error[i]);
+
+	len += scnprintf(buf + len, size - len, "\nHAL REO errors:\n");
+
+	for (i = 0; i < DP_REO_DST_RING_MAX; i++)
+		len += scnprintf(buf + len, size - len,
+				 "ring%d: %u\n", i,
+				 device_stats->hal_reo_error[i]);
+
+	len += scnprintf(buf + len, size - len, "\nDEVICE TX STATS:\n");
+	len += scnprintf(buf + len, size - len, "\nTCL Ring Full Failures:\n");
+
+	for (i = 0; i < DP_TCL_NUM_RING_MAX; i++)
+		len += scnprintf(buf + len, size - len, "ring%d: %u\n",
+				 i, device_stats->tx_err.desc_na[i]);
+
+	len += scnprintf(buf + len, size - len,
+			 "\nMisc Transmit Failures: %d\n",
+			 atomic_read(&device_stats->tx_err.misc_fail));
+
+	len += scnprintf(buf + len, size - len, "\ntx_wbm_rel_source:");
+
+	for (i = 0; i < HAL_WBM_REL_SRC_MODULE_MAX; i++)
+		len += scnprintf(buf + len, size - len, " %d:%u",
+				 i, device_stats->tx_wbm_rel_source[i]);
+
+	len += scnprintf(buf + len, size - len, "\n");
+
+	len += scnprintf(buf + len, size - len, "\ntqm_rel_reason:");
+
+	for (i = 0; i < MAX_TQM_RELEASE_REASON; i++)
+		len += scnprintf(buf + len, size - len, " %d:%u",
+				 i, device_stats->tqm_rel_reason[i]);
+
+	len += scnprintf(buf + len, size - len, "\n");
+
+	len += scnprintf(buf + len, size - len, "\nfw_tx_status:");
+
+	for (i = 0; i < MAX_FW_TX_STATUS; i++)
+		len += scnprintf(buf + len, size - len, " %d:%u",
+				 i, device_stats->fw_tx_status[i]);
+
+	len += scnprintf(buf + len, size - len, "\n");
+
+	len += scnprintf(buf + len, size - len, "\ntx_enqueued:");
+
+	for (i = 0; i < DP_TCL_NUM_RING_MAX; i++)
+		len += scnprintf(buf + len, size - len, " %d:%u", i,
+				 device_stats->tx_enqueued[i]);
+
+	len += scnprintf(buf + len, size - len, "\n");
+
+	len += scnprintf(buf + len, size - len, "\ntx_completed:");
+
+	for (i = 0; i < DP_TCL_NUM_RING_MAX; i++)
+		len += scnprintf(buf + len, size - len, " %d:%u",
+				 i, device_stats->tx_completed[i]);
+
+	len += scnprintf(buf + len, size - len, "\n");
+
+	for (i = 0; i < ab->num_radios; i++) {
+		ar = ath12k_mac_get_ar_by_pdev_id(ab, DP_SW2HW_MACID(i));
+		if (ar) {
+			len += scnprintf(buf + len, size - len,
+					"\nradio%d tx_pending: %u\n", i,
+					atomic_read(&ar->dp.num_tx_pending));
+		}
+	}
+
+	len += scnprintf(buf + len, size - len, "\nREO Rx Received:\n");
+
+	for (i = 0; i < DP_REO_DST_RING_MAX; i++) {
+		len += scnprintf(buf + len, size - len, "Ring%d:", i + 1);
+
+		for (j = 0; j < ATH12K_MAX_DEVICES; j++) {
+			len += scnprintf(buf + len, size - len,
+					"\t%d:%u", j,
+					 device_stats->reo_rx[i][j]);
+		}
+
+		len += scnprintf(buf + len, size - len, "\n");
+	}
+
+	len += scnprintf(buf + len, size - len, "\nRx WBM REL SRC Errors:\n");
+
+	for (i = 0; i < HAL_WBM_REL_SRC_MODULE_MAX; i++) {
+		len += scnprintf(buf + len, size - len, "%s:", wbm_rel_src[i]);
+
+		for (j = 0; j < ATH12K_MAX_DEVICES; j++) {
+			len += scnprintf(buf + len,
+					 size - len,
+					 "\t%d:%u", j,
+					 device_stats->rx_wbm_rel_source[i][j]);
+		}
+
+		len += scnprintf(buf + len, size - len, "\n");
+	}
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+
+	return ret;
+}
+
+static const struct file_operations fops_device_dp_stats = {
+	.read = ath12k_debugfs_dump_device_dp_stats,
+	.open = simple_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
+void ath12k_debugfs_pdev_create(struct ath12k_base *ab)
+{
+	debugfs_create_file("simulate_fw_crash", 0600, ab->debugfs_soc, ab,
+			    &fops_simulate_fw_crash);
+
+	debugfs_create_file("device_dp_stats", 0400, ab->debugfs_soc, ab,
+			    &fops_device_dp_stats);
+}
+
 void ath12k_debugfs_soc_create(struct ath12k_base *ab)
 {
 	bool dput_needed;