drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c - hafnium/third_party/linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0+
 /* Copyright (c) 2018-2019 Hisilicon Limited. */

 #include <linux/debugfs.h>
 #include <linux/device.h>

 #include "hnae3.h"
 #include "hns3_enet.h"

 #define HNS3_DBG_READ_LEN 256
 #define HNS3_DBG_WRITE_LEN 1024

 static struct dentry *hns3_dbgfs_root;

 static int hns3_dbg_queue_info(struct hnae3_handle *h,
 			       const char *cmd_buf)
 {
 	struct hns3_nic_priv *priv = h->priv;
 	struct hns3_nic_ring_data *ring_data;
 	struct hns3_enet_ring *ring;
 	u32 base_add_l, base_add_h;
 	u32 queue_num, queue_max;
 	u32 value, i = 0;
 	int cnt;

 	if (!priv->ring_data) {
 		dev_err(&h->pdev->dev, "ring_data is NULL\n");
 		return -EFAULT;
 	}

 	queue_max = h->kinfo.num_tqps;
 	cnt = kstrtouint(&cmd_buf[11], 0, &queue_num);
 	if (cnt)
 		queue_num = 0;
 	else
 		queue_max = queue_num + 1;

 	dev_info(&h->pdev->dev, "queue info\n");

 	if (queue_num >= h->kinfo.num_tqps) {
 		dev_err(&h->pdev->dev,
 			"Queue number(%u) is out of range(0-%u)\n", queue_num,
 			h->kinfo.num_tqps - 1);
 		return -EINVAL;
 	}

 	ring_data = priv->ring_data;
 	for (i = queue_num; i < queue_max; i++) {
 		/* Each cycle needs to determine whether the instance is reset,
 		 * to prevent reference to invalid memory. And need to ensure
 		 * that the following code is executed within 100ms.
 		 */
 		if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) ||
 		    test_bit(HNS3_NIC_STATE_RESETTING, &priv->state))
 			return -EPERM;

 		ring = ring_data[(u32)(i + h->kinfo.num_tqps)].ring;
 		base_add_h = readl_relaxed(ring->tqp->io_base +
 					   HNS3_RING_RX_RING_BASEADDR_H_REG);
 		base_add_l = readl_relaxed(ring->tqp->io_base +
 					   HNS3_RING_RX_RING_BASEADDR_L_REG);
 		dev_info(&h->pdev->dev, "RX(%d) BASE ADD: 0x%08x%08x\n", i,
 			 base_add_h, base_add_l);

 		value = readl_relaxed(ring->tqp->io_base +
 				      HNS3_RING_RX_RING_BD_NUM_REG);
 		dev_info(&h->pdev->dev, "RX(%d) RING BD NUM: %u\n", i, value);

 		value = readl_relaxed(ring->tqp->io_base +
 				      HNS3_RING_RX_RING_BD_LEN_REG);
 		dev_info(&h->pdev->dev, "RX(%d) RING BD LEN: %u\n", i, value);

 		value = readl_relaxed(ring->tqp->io_base +
 				      HNS3_RING_RX_RING_TAIL_REG);
 		dev_info(&h->pdev->dev, "RX(%d) RING TAIL: %u\n", i, value);

 		value = readl_relaxed(ring->tqp->io_base +
 				      HNS3_RING_RX_RING_HEAD_REG);
 		dev_info(&h->pdev->dev, "RX(%d) RING HEAD: %u\n", i, value);

 		value = readl_relaxed(ring->tqp->io_base +
 				      HNS3_RING_RX_RING_FBDNUM_REG);
 		dev_info(&h->pdev->dev, "RX(%d) RING FBDNUM: %u\n", i, value);

 		value = readl_relaxed(ring->tqp->io_base +
 				      HNS3_RING_RX_RING_PKTNUM_RECORD_REG);
 		dev_info(&h->pdev->dev, "RX(%d) RING PKTNUM: %u\n", i, value);

 		ring = ring_data[i].ring;
 		base_add_h = readl_relaxed(ring->tqp->io_base +
 					   HNS3_RING_TX_RING_BASEADDR_H_REG);
 		base_add_l = readl_relaxed(ring->tqp->io_base +
 					   HNS3_RING_TX_RING_BASEADDR_L_REG);
 		dev_info(&h->pdev->dev, "TX(%d) BASE ADD: 0x%08x%08x\n", i,
 			 base_add_h, base_add_l);

 		value = readl_relaxed(ring->tqp->io_base +
 				      HNS3_RING_TX_RING_BD_NUM_REG);
 		dev_info(&h->pdev->dev, "TX(%d) RING BD NUM: %u\n", i, value);

 		value = readl_relaxed(ring->tqp->io_base +
 				      HNS3_RING_TX_RING_TC_REG);
 		dev_info(&h->pdev->dev, "TX(%d) RING TC: %u\n", i, value);

 		value = readl_relaxed(ring->tqp->io_base +
 				      HNS3_RING_TX_RING_TAIL_REG);
 		dev_info(&h->pdev->dev, "TX(%d) RING TAIL: %u\n", i, value);

 		value = readl_relaxed(ring->tqp->io_base +
 				      HNS3_RING_TX_RING_HEAD_REG);
 		dev_info(&h->pdev->dev, "TX(%d) RING HEAD: %u\n", i, value);

 		value = readl_relaxed(ring->tqp->io_base +
 				      HNS3_RING_TX_RING_FBDNUM_REG);
 		dev_info(&h->pdev->dev, "TX(%d) RING FBDNUM: %u\n", i, value);

 		value = readl_relaxed(ring->tqp->io_base +
 				      HNS3_RING_TX_RING_OFFSET_REG);
 		dev_info(&h->pdev->dev, "TX(%d) RING OFFSET: %u\n", i, value);

 		value = readl_relaxed(ring->tqp->io_base +
 				      HNS3_RING_TX_RING_PKTNUM_RECORD_REG);
 		dev_info(&h->pdev->dev, "TX(%d) RING PKTNUM: %u\n\n", i,
 			 value);
 	}

 	return 0;
 }

 static int hns3_dbg_queue_map(struct hnae3_handle *h)
 {
 	struct hns3_nic_priv *priv = h->priv;
 	struct hns3_nic_ring_data *ring_data;
 	int i;

 	if (!h->ae_algo->ops->get_global_queue_id)
 		return -EOPNOTSUPP;

 	dev_info(&h->pdev->dev, "map info for queue id and vector id\n");
 	dev_info(&h->pdev->dev,
 		 "local queue id | global queue id | vector id\n");
 	for (i = 0; i < h->kinfo.num_tqps; i++) {
 		u16 global_qid;

 		global_qid = h->ae_algo->ops->get_global_queue_id(h, i);
 		ring_data = &priv->ring_data[i];
 		if (!ring_data || !ring_data->ring ||
 		    !ring_data->ring->tqp_vector)
 			continue;

 		dev_info(&h->pdev->dev,
 			 "      %4d            %4d            %4d\n",
 			 i, global_qid,
 			 ring_data->ring->tqp_vector->vector_irq);
 	}

 	return 0;
 }

 static int hns3_dbg_bd_info(struct hnae3_handle *h, const char *cmd_buf)
 {
 	struct hns3_nic_priv *priv = h->priv;
 	struct hns3_nic_ring_data *ring_data;
 	struct hns3_desc *rx_desc, *tx_desc;
 	struct device *dev = &h->pdev->dev;
 	struct hns3_enet_ring *ring;
 	u32 tx_index, rx_index;
 	u32 q_num, value;
 	dma_addr_t addr;
 	int cnt;

 	cnt = sscanf(&cmd_buf[8], "%u %u", &q_num, &tx_index);
 	if (cnt == 2) {
 		rx_index = tx_index;
 	} else if (cnt != 1) {
 		dev_err(dev, "bd info: bad command string, cnt=%d\n", cnt);
 		return -EINVAL;
 	}

 	if (q_num >= h->kinfo.num_tqps) {
 		dev_err(dev, "Queue number(%u) is out of range(0-%u)\n", q_num,
 			h->kinfo.num_tqps - 1);
 		return -EINVAL;
 	}

 	ring_data = priv->ring_data;
 	ring  = ring_data[q_num].ring;
 	value = readl_relaxed(ring->tqp->io_base + HNS3_RING_TX_RING_TAIL_REG);
 	tx_index = (cnt == 1) ? value : tx_index;

 	if (tx_index >= ring->desc_num) {
 		dev_err(dev, "bd index(%u) is out of range(0-%u)\n", tx_index,
 			ring->desc_num - 1);
 		return -EINVAL;
 	}

 	tx_desc = &ring->desc[tx_index];
 	addr = le64_to_cpu(tx_desc->addr);
 	dev_info(dev, "TX Queue Num: %u, BD Index: %u\n", q_num, tx_index);
 	dev_info(dev, "(TX)addr: %pad\n", &addr);
 	dev_info(dev, "(TX)vlan_tag: %u\n", tx_desc->tx.vlan_tag);
 	dev_info(dev, "(TX)send_size: %u\n", tx_desc->tx.send_size);
 	dev_info(dev, "(TX)vlan_tso: %u\n", tx_desc->tx.type_cs_vlan_tso);
 	dev_info(dev, "(TX)l2_len: %u\n", tx_desc->tx.l2_len);
 	dev_info(dev, "(TX)l3_len: %u\n", tx_desc->tx.l3_len);
 	dev_info(dev, "(TX)l4_len: %u\n", tx_desc->tx.l4_len);
 	dev_info(dev, "(TX)vlan_tag: %u\n", tx_desc->tx.outer_vlan_tag);
 	dev_info(dev, "(TX)tv: %u\n", tx_desc->tx.tv);
 	dev_info(dev, "(TX)vlan_msec: %u\n", tx_desc->tx.ol_type_vlan_msec);
 	dev_info(dev, "(TX)ol2_len: %u\n", tx_desc->tx.ol2_len);
 	dev_info(dev, "(TX)ol3_len: %u\n", tx_desc->tx.ol3_len);
 	dev_info(dev, "(TX)ol4_len: %u\n", tx_desc->tx.ol4_len);
 	dev_info(dev, "(TX)paylen: %u\n", tx_desc->tx.paylen);
 	dev_info(dev, "(TX)vld_ra_ri: %u\n", tx_desc->tx.bdtp_fe_sc_vld_ra_ri);
 	dev_info(dev, "(TX)mss: %u\n", tx_desc->tx.mss);

 	ring  = ring_data[q_num + h->kinfo.num_tqps].ring;
 	value = readl_relaxed(ring->tqp->io_base + HNS3_RING_RX_RING_TAIL_REG);
 	rx_index = (cnt == 1) ? value : tx_index;
 	rx_desc	 = &ring->desc[rx_index];

 	addr = le64_to_cpu(rx_desc->addr);
 	dev_info(dev, "RX Queue Num: %u, BD Index: %u\n", q_num, rx_index);
 	dev_info(dev, "(RX)addr: %pad\n", &addr);
 	dev_info(dev, "(RX)l234_info: %u\n", rx_desc->rx.l234_info);
 	dev_info(dev, "(RX)pkt_len: %u\n", rx_desc->rx.pkt_len);
 	dev_info(dev, "(RX)size: %u\n", rx_desc->rx.size);
 	dev_info(dev, "(RX)rss_hash: %u\n", rx_desc->rx.rss_hash);
 	dev_info(dev, "(RX)fd_id: %u\n", rx_desc->rx.fd_id);
 	dev_info(dev, "(RX)vlan_tag: %u\n", rx_desc->rx.vlan_tag);
 	dev_info(dev, "(RX)o_dm_vlan_id_fb: %u\n", rx_desc->rx.o_dm_vlan_id_fb);
 	dev_info(dev, "(RX)ot_vlan_tag: %u\n", rx_desc->rx.ot_vlan_tag);
 	dev_info(dev, "(RX)bd_base_info: %u\n", rx_desc->rx.bd_base_info);

 	return 0;
 }

 static void hns3_dbg_help(struct hnae3_handle *h)
 {
 #define HNS3_DBG_BUF_LEN 256

 	char printf_buf[HNS3_DBG_BUF_LEN];

 	dev_info(&h->pdev->dev, "available commands\n");
 	dev_info(&h->pdev->dev, "queue info <number>\n");
 	dev_info(&h->pdev->dev, "queue map\n");
 	dev_info(&h->pdev->dev, "bd info <q_num> <bd index>\n");

 	if (!hns3_is_phys_func(h->pdev))
 		return;

 	dev_info(&h->pdev->dev, "dump fd tcam\n");
 	dev_info(&h->pdev->dev, "dump tc\n");
 	dev_info(&h->pdev->dev, "dump tm map <q_num>\n");
 	dev_info(&h->pdev->dev, "dump tm\n");
 	dev_info(&h->pdev->dev, "dump qos pause cfg\n");
 	dev_info(&h->pdev->dev, "dump qos pri map\n");
 	dev_info(&h->pdev->dev, "dump qos buf cfg\n");
 	dev_info(&h->pdev->dev, "dump mng tbl\n");
 	dev_info(&h->pdev->dev, "dump reset info\n");
 	dev_info(&h->pdev->dev, "dump m7 info\n");
 	dev_info(&h->pdev->dev, "dump ncl_config <offset> <length>(in hex)\n");
 	dev_info(&h->pdev->dev, "dump mac tnl status\n");

 	memset(printf_buf, 0, HNS3_DBG_BUF_LEN);
 	strncat(printf_buf, "dump reg [[bios common] [ssu <port_id>]",
 		HNS3_DBG_BUF_LEN - 1);
 	strncat(printf_buf + strlen(printf_buf),
 		" [igu egu <port_id>] [rpu <tc_queue_num>]",
 		HNS3_DBG_BUF_LEN - strlen(printf_buf) - 1);
 	strncat(printf_buf + strlen(printf_buf),
 		" [rtc] [ppp] [rcb] [tqp <queue_num>]]\n",
 		HNS3_DBG_BUF_LEN - strlen(printf_buf) - 1);
 	dev_info(&h->pdev->dev, "%s", printf_buf);

 	memset(printf_buf, 0, HNS3_DBG_BUF_LEN);
 	strncat(printf_buf, "dump reg dcb <port_id> <pri_id> <pg_id>",
 		HNS3_DBG_BUF_LEN - 1);
 	strncat(printf_buf + strlen(printf_buf), " <rq_id> <nq_id> <qset_id>\n",
 		HNS3_DBG_BUF_LEN - strlen(printf_buf) - 1);
 	dev_info(&h->pdev->dev, "%s", printf_buf);
 }

 static ssize_t hns3_dbg_cmd_read(struct file *filp, char __user *buffer,
 				 size_t count, loff_t *ppos)
 {
 	int uncopy_bytes;
 	char *buf;
 	int len;

 	if (*ppos != 0)
 		return 0;

 	if (count < HNS3_DBG_READ_LEN)
 		return -ENOSPC;

 	buf = kzalloc(HNS3_DBG_READ_LEN, GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;

 	len = snprintf(buf, HNS3_DBG_READ_LEN, "%s\n",
 		       "Please echo help to cmd to get help information");
 	uncopy_bytes = copy_to_user(buffer, buf, len);

 	kfree(buf);

 	if (uncopy_bytes)
 		return -EFAULT;

 	return (*ppos = len);
 }

 static ssize_t hns3_dbg_cmd_write(struct file *filp, const char __user *buffer,
 				  size_t count, loff_t *ppos)
 {
 	struct hnae3_handle *handle = filp->private_data;
 	struct hns3_nic_priv *priv  = handle->priv;
 	char *cmd_buf, *cmd_buf_tmp;
 	int uncopied_bytes;
 	int ret = 0;

 	if (*ppos != 0)
 		return 0;

 	/* Judge if the instance is being reset. */
 	if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) ||
 	    test_bit(HNS3_NIC_STATE_RESETTING, &priv->state))
 		return 0;

 	if (count > HNS3_DBG_WRITE_LEN)
 		return -ENOSPC;

 	cmd_buf = kzalloc(count + 1, GFP_KERNEL);
 	if (!cmd_buf)
 		return count;

 	uncopied_bytes = copy_from_user(cmd_buf, buffer, count);
 	if (uncopied_bytes) {
 		kfree(cmd_buf);
 		return -EFAULT;
 	}

 	cmd_buf[count] = '\0';

 	cmd_buf_tmp = strchr(cmd_buf, '\n');
 	if (cmd_buf_tmp) {
 		*cmd_buf_tmp = '\0';
 		count = cmd_buf_tmp - cmd_buf + 1;
 	}

 	if (strncmp(cmd_buf, "help", 4) == 0)
 		hns3_dbg_help(handle);
 	else if (strncmp(cmd_buf, "queue info", 10) == 0)
 		ret = hns3_dbg_queue_info(handle, cmd_buf);
 	else if (strncmp(cmd_buf, "queue map", 9) == 0)
 		ret = hns3_dbg_queue_map(handle);
 	else if (strncmp(cmd_buf, "bd info", 7) == 0)
 		ret = hns3_dbg_bd_info(handle, cmd_buf);
 	else if (handle->ae_algo->ops->dbg_run_cmd)
 		ret = handle->ae_algo->ops->dbg_run_cmd(handle, cmd_buf);
 	else
 		ret = -EOPNOTSUPP;

 	if (ret)
 		hns3_dbg_help(handle);

 	kfree(cmd_buf);
 	cmd_buf = NULL;

 	return count;
 }

 static const struct file_operations hns3_dbg_cmd_fops = {
 	.owner = THIS_MODULE,
 	.open  = simple_open,
 	.read  = hns3_dbg_cmd_read,
 	.write = hns3_dbg_cmd_write,
 };

 void hns3_dbg_init(struct hnae3_handle *handle)
 {
 	const char *name = pci_name(handle->pdev);

 	handle->hnae3_dbgfs = debugfs_create_dir(name, hns3_dbgfs_root);

 	debugfs_create_file("cmd", 0600, handle->hnae3_dbgfs, handle,
 			    &hns3_dbg_cmd_fops);
 }

 void hns3_dbg_uninit(struct hnae3_handle *handle)
 {
 	debugfs_remove_recursive(handle->hnae3_dbgfs);
 	handle->hnae3_dbgfs = NULL;
 }

 void hns3_dbg_register_debugfs(const char *debugfs_dir_name)
 {
 	hns3_dbgfs_root = debugfs_create_dir(debugfs_dir_name, NULL);
 }

 void hns3_dbg_unregister_debugfs(void)
 {
 	debugfs_remove_recursive(hns3_dbgfs_root);
 	hns3_dbgfs_root = NULL;
 }
	// SPDX-License-Identifier: GPL-2.0+
	/* Copyright (c) 2018-2019 Hisilicon Limited. */

	#include <linux/debugfs.h>
	#include <linux/device.h>

	#include "hnae3.h"
	#include "hns3_enet.h"

	#define HNS3_DBG_READ_LEN 256
	#define HNS3_DBG_WRITE_LEN 1024

	static struct dentry *hns3_dbgfs_root;

	static int hns3_dbg_queue_info(struct hnae3_handle *h,
	const char *cmd_buf)
	{
	struct hns3_nic_priv *priv = h->priv;
	struct hns3_nic_ring_data *ring_data;
	struct hns3_enet_ring *ring;
	u32 base_add_l, base_add_h;
	u32 queue_num, queue_max;
	u32 value, i = 0;
	int cnt;

	if (!priv->ring_data) {
	dev_err(&h->pdev->dev, "ring_data is NULL\n");
	return -EFAULT;
	}

	queue_max = h->kinfo.num_tqps;
	cnt = kstrtouint(&cmd_buf[11], 0, &queue_num);
	if (cnt)
	queue_num = 0;
	else
	queue_max = queue_num + 1;

	dev_info(&h->pdev->dev, "queue info\n");

	if (queue_num >= h->kinfo.num_tqps) {
	dev_err(&h->pdev->dev,
	"Queue number(%u) is out of range(0-%u)\n", queue_num,
	h->kinfo.num_tqps - 1);
	return -EINVAL;
	}

	ring_data = priv->ring_data;
	for (i = queue_num; i < queue_max; i++) {
	/* Each cycle needs to determine whether the instance is reset,
	* to prevent reference to invalid memory. And need to ensure
	* that the following code is executed within 100ms.
	*/
	if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) \|\|
	test_bit(HNS3_NIC_STATE_RESETTING, &priv->state))
	return -EPERM;

	ring = ring_data[(u32)(i + h->kinfo.num_tqps)].ring;
	base_add_h = readl_relaxed(ring->tqp->io_base +
	HNS3_RING_RX_RING_BASEADDR_H_REG);
	base_add_l = readl_relaxed(ring->tqp->io_base +
	HNS3_RING_RX_RING_BASEADDR_L_REG);
	dev_info(&h->pdev->dev, "RX(%d) BASE ADD: 0x%08x%08x\n", i,
	base_add_h, base_add_l);

	value = readl_relaxed(ring->tqp->io_base +
	HNS3_RING_RX_RING_BD_NUM_REG);
	dev_info(&h->pdev->dev, "RX(%d) RING BD NUM: %u\n", i, value);

	value = readl_relaxed(ring->tqp->io_base +
	HNS3_RING_RX_RING_BD_LEN_REG);
	dev_info(&h->pdev->dev, "RX(%d) RING BD LEN: %u\n", i, value);

	value = readl_relaxed(ring->tqp->io_base +
	HNS3_RING_RX_RING_TAIL_REG);
	dev_info(&h->pdev->dev, "RX(%d) RING TAIL: %u\n", i, value);

	value = readl_relaxed(ring->tqp->io_base +
	HNS3_RING_RX_RING_HEAD_REG);
	dev_info(&h->pdev->dev, "RX(%d) RING HEAD: %u\n", i, value);

	value = readl_relaxed(ring->tqp->io_base +
	HNS3_RING_RX_RING_FBDNUM_REG);
	dev_info(&h->pdev->dev, "RX(%d) RING FBDNUM: %u\n", i, value);

	value = readl_relaxed(ring->tqp->io_base +
	HNS3_RING_RX_RING_PKTNUM_RECORD_REG);
	dev_info(&h->pdev->dev, "RX(%d) RING PKTNUM: %u\n", i, value);

	ring = ring_data[i].ring;
	base_add_h = readl_relaxed(ring->tqp->io_base +
	HNS3_RING_TX_RING_BASEADDR_H_REG);
	base_add_l = readl_relaxed(ring->tqp->io_base +
	HNS3_RING_TX_RING_BASEADDR_L_REG);
	dev_info(&h->pdev->dev, "TX(%d) BASE ADD: 0x%08x%08x\n", i,
	base_add_h, base_add_l);

	value = readl_relaxed(ring->tqp->io_base +
	HNS3_RING_TX_RING_BD_NUM_REG);
	dev_info(&h->pdev->dev, "TX(%d) RING BD NUM: %u\n", i, value);

	value = readl_relaxed(ring->tqp->io_base +
	HNS3_RING_TX_RING_TC_REG);
	dev_info(&h->pdev->dev, "TX(%d) RING TC: %u\n", i, value);

	value = readl_relaxed(ring->tqp->io_base +
	HNS3_RING_TX_RING_TAIL_REG);
	dev_info(&h->pdev->dev, "TX(%d) RING TAIL: %u\n", i, value);

	value = readl_relaxed(ring->tqp->io_base +
	HNS3_RING_TX_RING_HEAD_REG);
	dev_info(&h->pdev->dev, "TX(%d) RING HEAD: %u\n", i, value);

	value = readl_relaxed(ring->tqp->io_base +
	HNS3_RING_TX_RING_FBDNUM_REG);
	dev_info(&h->pdev->dev, "TX(%d) RING FBDNUM: %u\n", i, value);

	value = readl_relaxed(ring->tqp->io_base +
	HNS3_RING_TX_RING_OFFSET_REG);
	dev_info(&h->pdev->dev, "TX(%d) RING OFFSET: %u\n", i, value);

	value = readl_relaxed(ring->tqp->io_base +
	HNS3_RING_TX_RING_PKTNUM_RECORD_REG);
	dev_info(&h->pdev->dev, "TX(%d) RING PKTNUM: %u\n\n", i,
	value);
	}

	return 0;
	}

	static int hns3_dbg_queue_map(struct hnae3_handle *h)
	{
	struct hns3_nic_priv *priv = h->priv;
	struct hns3_nic_ring_data *ring_data;
	int i;

	if (!h->ae_algo->ops->get_global_queue_id)
	return -EOPNOTSUPP;

	dev_info(&h->pdev->dev, "map info for queue id and vector id\n");
	dev_info(&h->pdev->dev,
	"local queue id \| global queue id \| vector id\n");
	for (i = 0; i < h->kinfo.num_tqps; i++) {
	u16 global_qid;

	global_qid = h->ae_algo->ops->get_global_queue_id(h, i);
	ring_data = &priv->ring_data[i];
	if (!ring_data \|\| !ring_data->ring \|\|
	!ring_data->ring->tqp_vector)
	continue;

	dev_info(&h->pdev->dev,
	" %4d %4d %4d\n",
	i, global_qid,
	ring_data->ring->tqp_vector->vector_irq);
	}

	return 0;
	}

	static int hns3_dbg_bd_info(struct hnae3_handle h, const char cmd_buf)
	{
	struct hns3_nic_priv *priv = h->priv;
	struct hns3_nic_ring_data *ring_data;
	struct hns3_desc rx_desc, tx_desc;
	struct device *dev = &h->pdev->dev;
	struct hns3_enet_ring *ring;
	u32 tx_index, rx_index;
	u32 q_num, value;
	dma_addr_t addr;
	int cnt;

	cnt = sscanf(&cmd_buf[8], "%u %u", &q_num, &tx_index);
	if (cnt == 2) {
	rx_index = tx_index;
	} else if (cnt != 1) {
	dev_err(dev, "bd info: bad command string, cnt=%d\n", cnt);
	return -EINVAL;
	}

	if (q_num >= h->kinfo.num_tqps) {
	dev_err(dev, "Queue number(%u) is out of range(0-%u)\n", q_num,
	h->kinfo.num_tqps - 1);
	return -EINVAL;
	}

	ring_data = priv->ring_data;
	ring = ring_data[q_num].ring;
	value = readl_relaxed(ring->tqp->io_base + HNS3_RING_TX_RING_TAIL_REG);
	tx_index = (cnt == 1) ? value : tx_index;

	if (tx_index >= ring->desc_num) {
	dev_err(dev, "bd index(%u) is out of range(0-%u)\n", tx_index,
	ring->desc_num - 1);
	return -EINVAL;
	}

	tx_desc = &ring->desc[tx_index];
	addr = le64_to_cpu(tx_desc->addr);
	dev_info(dev, "TX Queue Num: %u, BD Index: %u\n", q_num, tx_index);
	dev_info(dev, "(TX)addr: %pad\n", &addr);
	dev_info(dev, "(TX)vlan_tag: %u\n", tx_desc->tx.vlan_tag);
	dev_info(dev, "(TX)send_size: %u\n", tx_desc->tx.send_size);
	dev_info(dev, "(TX)vlan_tso: %u\n", tx_desc->tx.type_cs_vlan_tso);
	dev_info(dev, "(TX)l2_len: %u\n", tx_desc->tx.l2_len);
	dev_info(dev, "(TX)l3_len: %u\n", tx_desc->tx.l3_len);
	dev_info(dev, "(TX)l4_len: %u\n", tx_desc->tx.l4_len);
	dev_info(dev, "(TX)vlan_tag: %u\n", tx_desc->tx.outer_vlan_tag);
	dev_info(dev, "(TX)tv: %u\n", tx_desc->tx.tv);
	dev_info(dev, "(TX)vlan_msec: %u\n", tx_desc->tx.ol_type_vlan_msec);
	dev_info(dev, "(TX)ol2_len: %u\n", tx_desc->tx.ol2_len);
	dev_info(dev, "(TX)ol3_len: %u\n", tx_desc->tx.ol3_len);
	dev_info(dev, "(TX)ol4_len: %u\n", tx_desc->tx.ol4_len);
	dev_info(dev, "(TX)paylen: %u\n", tx_desc->tx.paylen);
	dev_info(dev, "(TX)vld_ra_ri: %u\n", tx_desc->tx.bdtp_fe_sc_vld_ra_ri);
	dev_info(dev, "(TX)mss: %u\n", tx_desc->tx.mss);

	ring = ring_data[q_num + h->kinfo.num_tqps].ring;
	value = readl_relaxed(ring->tqp->io_base + HNS3_RING_RX_RING_TAIL_REG);
	rx_index = (cnt == 1) ? value : tx_index;
	rx_desc = &ring->desc[rx_index];

	addr = le64_to_cpu(rx_desc->addr);
	dev_info(dev, "RX Queue Num: %u, BD Index: %u\n", q_num, rx_index);
	dev_info(dev, "(RX)addr: %pad\n", &addr);
	dev_info(dev, "(RX)l234_info: %u\n", rx_desc->rx.l234_info);
	dev_info(dev, "(RX)pkt_len: %u\n", rx_desc->rx.pkt_len);
	dev_info(dev, "(RX)size: %u\n", rx_desc->rx.size);
	dev_info(dev, "(RX)rss_hash: %u\n", rx_desc->rx.rss_hash);
	dev_info(dev, "(RX)fd_id: %u\n", rx_desc->rx.fd_id);
	dev_info(dev, "(RX)vlan_tag: %u\n", rx_desc->rx.vlan_tag);
	dev_info(dev, "(RX)o_dm_vlan_id_fb: %u\n", rx_desc->rx.o_dm_vlan_id_fb);
	dev_info(dev, "(RX)ot_vlan_tag: %u\n", rx_desc->rx.ot_vlan_tag);
	dev_info(dev, "(RX)bd_base_info: %u\n", rx_desc->rx.bd_base_info);

	return 0;
	}

	static void hns3_dbg_help(struct hnae3_handle *h)
	{
	#define HNS3_DBG_BUF_LEN 256

	char printf_buf[HNS3_DBG_BUF_LEN];

	dev_info(&h->pdev->dev, "available commands\n");
	dev_info(&h->pdev->dev, "queue info <number>\n");
	dev_info(&h->pdev->dev, "queue map\n");
	dev_info(&h->pdev->dev, "bd info <q_num> <bd index>\n");

	if (!hns3_is_phys_func(h->pdev))
	return;

	dev_info(&h->pdev->dev, "dump fd tcam\n");
	dev_info(&h->pdev->dev, "dump tc\n");
	dev_info(&h->pdev->dev, "dump tm map <q_num>\n");
	dev_info(&h->pdev->dev, "dump tm\n");
	dev_info(&h->pdev->dev, "dump qos pause cfg\n");
	dev_info(&h->pdev->dev, "dump qos pri map\n");
	dev_info(&h->pdev->dev, "dump qos buf cfg\n");
	dev_info(&h->pdev->dev, "dump mng tbl\n");
	dev_info(&h->pdev->dev, "dump reset info\n");
	dev_info(&h->pdev->dev, "dump m7 info\n");
	dev_info(&h->pdev->dev, "dump ncl_config <offset> <length>(in hex)\n");
	dev_info(&h->pdev->dev, "dump mac tnl status\n");

	memset(printf_buf, 0, HNS3_DBG_BUF_LEN);
	strncat(printf_buf, "dump reg [[bios common] [ssu <port_id>]",
	HNS3_DBG_BUF_LEN - 1);
	strncat(printf_buf + strlen(printf_buf),
	" [igu egu <port_id>] [rpu <tc_queue_num>]",
	HNS3_DBG_BUF_LEN - strlen(printf_buf) - 1);
	strncat(printf_buf + strlen(printf_buf),
	" [rtc] [ppp] [rcb] [tqp <queue_num>]]\n",
	HNS3_DBG_BUF_LEN - strlen(printf_buf) - 1);
	dev_info(&h->pdev->dev, "%s", printf_buf);

	memset(printf_buf, 0, HNS3_DBG_BUF_LEN);
	strncat(printf_buf, "dump reg dcb <port_id> <pri_id> <pg_id>",
	HNS3_DBG_BUF_LEN - 1);
	strncat(printf_buf + strlen(printf_buf), " <rq_id> <nq_id> <qset_id>\n",
	HNS3_DBG_BUF_LEN - strlen(printf_buf) - 1);
	dev_info(&h->pdev->dev, "%s", printf_buf);
	}

	static ssize_t hns3_dbg_cmd_read(struct file filp, char __user buffer,
	size_t count, loff_t *ppos)
	{
	int uncopy_bytes;
	char *buf;
	int len;

	if (*ppos != 0)
	return 0;

	if (count < HNS3_DBG_READ_LEN)
	return -ENOSPC;

	buf = kzalloc(HNS3_DBG_READ_LEN, GFP_KERNEL);
	if (!buf)
	return -ENOMEM;

	len = snprintf(buf, HNS3_DBG_READ_LEN, "%s\n",
	"Please echo help to cmd to get help information");
	uncopy_bytes = copy_to_user(buffer, buf, len);

	kfree(buf);

	if (uncopy_bytes)
	return -EFAULT;

	return (*ppos = len);
	}

	static ssize_t hns3_dbg_cmd_write(struct file filp, const char __user buffer,
	size_t count, loff_t *ppos)
	{
	struct hnae3_handle *handle = filp->private_data;
	struct hns3_nic_priv *priv = handle->priv;
	char cmd_buf, cmd_buf_tmp;
	int uncopied_bytes;
	int ret = 0;

	if (*ppos != 0)
	return 0;

	/* Judge if the instance is being reset. */
	if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) \|\|
	test_bit(HNS3_NIC_STATE_RESETTING, &priv->state))
	return 0;

	if (count > HNS3_DBG_WRITE_LEN)
	return -ENOSPC;

	cmd_buf = kzalloc(count + 1, GFP_KERNEL);
	if (!cmd_buf)
	return count;

	uncopied_bytes = copy_from_user(cmd_buf, buffer, count);
	if (uncopied_bytes) {
	kfree(cmd_buf);
	return -EFAULT;
	}

	cmd_buf[count] = '\0';

	cmd_buf_tmp = strchr(cmd_buf, '\n');
	if (cmd_buf_tmp) {
	*cmd_buf_tmp = '\0';
	count = cmd_buf_tmp - cmd_buf + 1;
	}

	if (strncmp(cmd_buf, "help", 4) == 0)
	hns3_dbg_help(handle);
	else if (strncmp(cmd_buf, "queue info", 10) == 0)
	ret = hns3_dbg_queue_info(handle, cmd_buf);
	else if (strncmp(cmd_buf, "queue map", 9) == 0)
	ret = hns3_dbg_queue_map(handle);
	else if (strncmp(cmd_buf, "bd info", 7) == 0)
	ret = hns3_dbg_bd_info(handle, cmd_buf);
	else if (handle->ae_algo->ops->dbg_run_cmd)
	ret = handle->ae_algo->ops->dbg_run_cmd(handle, cmd_buf);
	else
	ret = -EOPNOTSUPP;

	if (ret)
	hns3_dbg_help(handle);

	kfree(cmd_buf);
	cmd_buf = NULL;

	return count;
	}

	static const struct file_operations hns3_dbg_cmd_fops = {
	.owner = THIS_MODULE,
	.open = simple_open,
	.read = hns3_dbg_cmd_read,
	.write = hns3_dbg_cmd_write,
	};

	void hns3_dbg_init(struct hnae3_handle *handle)
	{
	const char *name = pci_name(handle->pdev);

	handle->hnae3_dbgfs = debugfs_create_dir(name, hns3_dbgfs_root);

	debugfs_create_file("cmd", 0600, handle->hnae3_dbgfs, handle,
	&hns3_dbg_cmd_fops);
	}

	void hns3_dbg_uninit(struct hnae3_handle *handle)
	{
	debugfs_remove_recursive(handle->hnae3_dbgfs);
	handle->hnae3_dbgfs = NULL;
	}

	void hns3_dbg_register_debugfs(const char *debugfs_dir_name)
	{
	hns3_dbgfs_root = debugfs_create_dir(debugfs_dir_name, NULL);
	}

	void hns3_dbg_unregister_debugfs(void)
	{
	debugfs_remove_recursive(hns3_dbgfs_root);
	hns3_dbgfs_root = NULL;
	}