hns3_debugfs.c 27.3 KB
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// SPDX-License-Identifier: GPL-2.0+
/* Copyright (c) 2018-2019 Hisilicon Limited. */

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

#include "hnae3.h"
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#include "hns3_debugfs.h"
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#include "hns3_enet.h"

static struct dentry *hns3_dbgfs_root;

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static struct hns3_dbg_dentry_info hns3_dbg_dentry[] = {
	{
		.name = "tm"
	},
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	{
		.name = "tx_bd_info"
	},
	{
		.name = "rx_bd_info"
	},
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	{
		.name = "mac_list"
	},
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	{
		.name = "reg"
	},
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	{
		.name = "queue"
	},
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	/* keep common at the bottom and add new directory above */
	{
		.name = "common"
	},
};

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static int hns3_dbg_bd_file_init(struct hnae3_handle *handle, unsigned int cmd);
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static int hns3_dbg_common_file_init(struct hnae3_handle *handle,
				     unsigned int cmd);

static struct hns3_dbg_cmd_info hns3_dbg_cmd[] = {
	{
		.name = "tm_nodes",
		.cmd = HNAE3_DBG_CMD_TM_NODES,
		.dentry = HNS3_DBG_DENTRY_TM,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
	{
		.name = "tm_priority",
		.cmd = HNAE3_DBG_CMD_TM_PRI,
		.dentry = HNS3_DBG_DENTRY_TM,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
	{
		.name = "tm_qset",
		.cmd = HNAE3_DBG_CMD_TM_QSET,
		.dentry = HNS3_DBG_DENTRY_TM,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
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	{
		.name = "dev_info",
		.cmd = HNAE3_DBG_CMD_DEV_INFO,
		.dentry = HNS3_DBG_DENTRY_COMMON,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
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	{
		.name = "tx_bd_queue",
		.cmd = HNAE3_DBG_CMD_TX_BD,
		.dentry = HNS3_DBG_DENTRY_TX_BD,
		.buf_len = HNS3_DBG_READ_LEN_4MB,
		.init = hns3_dbg_bd_file_init,
	},
	{
		.name = "rx_bd_queue",
		.cmd = HNAE3_DBG_CMD_RX_BD,
		.dentry = HNS3_DBG_DENTRY_RX_BD,
		.buf_len = HNS3_DBG_READ_LEN_4MB,
		.init = hns3_dbg_bd_file_init,
	},
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	{
		.name = "uc",
		.cmd = HNAE3_DBG_CMD_MAC_UC,
		.dentry = HNS3_DBG_DENTRY_MAC,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
	{
		.name = "mc",
		.cmd = HNAE3_DBG_CMD_MAC_MC,
		.dentry = HNS3_DBG_DENTRY_MAC,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
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	{
		.name = "mng_tbl",
		.cmd = HNAE3_DBG_CMD_MNG_TBL,
		.dentry = HNS3_DBG_DENTRY_COMMON,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
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	{
		.name = "loopback",
		.cmd = HNAE3_DBG_CMD_LOOPBACK,
		.dentry = HNS3_DBG_DENTRY_COMMON,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
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	{
		.name = "interrupt_info",
		.cmd = HNAE3_DBG_CMD_INTERRUPT_INFO,
		.dentry = HNS3_DBG_DENTRY_COMMON,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
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	{
		.name = "reset_info",
		.cmd = HNAE3_DBG_CMD_RESET_INFO,
		.dentry = HNS3_DBG_DENTRY_COMMON,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
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	{
		.name = "imp_info",
		.cmd = HNAE3_DBG_CMD_IMP_INFO,
		.dentry = HNS3_DBG_DENTRY_COMMON,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
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	{
		.name = "ncl_config",
		.cmd = HNAE3_DBG_CMD_NCL_CONFIG,
		.dentry = HNS3_DBG_DENTRY_COMMON,
		.buf_len = HNS3_DBG_READ_LEN_128KB,
		.init = hns3_dbg_common_file_init,
	},
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	{
		.name = "bios_common",
		.cmd = HNAE3_DBG_CMD_REG_BIOS_COMMON,
		.dentry = HNS3_DBG_DENTRY_REG,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
	{
		.name = "ssu",
		.cmd = HNAE3_DBG_CMD_REG_SSU,
		.dentry = HNS3_DBG_DENTRY_REG,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
	{
		.name = "igu_egu",
		.cmd = HNAE3_DBG_CMD_REG_IGU_EGU,
		.dentry = HNS3_DBG_DENTRY_REG,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
	{
		.name = "rpu",
		.cmd = HNAE3_DBG_CMD_REG_RPU,
		.dentry = HNS3_DBG_DENTRY_REG,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
	{
		.name = "ncsi",
		.cmd = HNAE3_DBG_CMD_REG_NCSI,
		.dentry = HNS3_DBG_DENTRY_REG,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
	{
		.name = "rtc",
		.cmd = HNAE3_DBG_CMD_REG_RTC,
		.dentry = HNS3_DBG_DENTRY_REG,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
	{
		.name = "ppp",
		.cmd = HNAE3_DBG_CMD_REG_PPP,
		.dentry = HNS3_DBG_DENTRY_REG,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
	{
		.name = "rcb",
		.cmd = HNAE3_DBG_CMD_REG_RCB,
		.dentry = HNS3_DBG_DENTRY_REG,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
	{
		.name = "tqp",
		.cmd = HNAE3_DBG_CMD_REG_TQP,
		.dentry = HNS3_DBG_DENTRY_REG,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
	{
		.name = "mac",
		.cmd = HNAE3_DBG_CMD_REG_MAC,
		.dentry = HNS3_DBG_DENTRY_REG,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
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	{
		.name = "dcb",
		.cmd = HNAE3_DBG_CMD_REG_DCB,
		.dentry = HNS3_DBG_DENTRY_REG,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
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	{
		.name = "queue_map",
		.cmd = HNAE3_DBG_CMD_QUEUE_MAP,
		.dentry = HNS3_DBG_DENTRY_QUEUE,
		.buf_len = HNS3_DBG_READ_LEN,
		.init = hns3_dbg_common_file_init,
	},
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};

static struct hns3_dbg_cap_info hns3_dbg_cap[] = {
	{
		.name = "support FD",
		.cap_bit = HNAE3_DEV_SUPPORT_FD_B,
	}, {
		.name = "support GRO",
		.cap_bit = HNAE3_DEV_SUPPORT_GRO_B,
	}, {
		.name = "support FEC",
		.cap_bit = HNAE3_DEV_SUPPORT_FEC_B,
	}, {
		.name = "support UDP GSO",
		.cap_bit = HNAE3_DEV_SUPPORT_UDP_GSO_B,
	}, {
		.name = "support PTP",
		.cap_bit = HNAE3_DEV_SUPPORT_PTP_B,
	}, {
		.name = "support INT QL",
		.cap_bit = HNAE3_DEV_SUPPORT_INT_QL_B,
	}, {
		.name = "support HW TX csum",
		.cap_bit = HNAE3_DEV_SUPPORT_HW_TX_CSUM_B,
	}, {
		.name = "support UDP tunnel csum",
		.cap_bit = HNAE3_DEV_SUPPORT_UDP_TUNNEL_CSUM_B,
	}, {
		.name = "support TX push",
		.cap_bit = HNAE3_DEV_SUPPORT_TX_PUSH_B,
	}, {
		.name = "support imp-controlled PHY",
		.cap_bit = HNAE3_DEV_SUPPORT_PHY_IMP_B,
	}, {
		.name = "support rxd advanced layout",
		.cap_bit = HNAE3_DEV_SUPPORT_RXD_ADV_LAYOUT_B,
	},
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};

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static void hns3_dbg_fill_content(char *content, u16 len,
				  const struct hns3_dbg_item *items,
				  const char **result, u16 size)
{
	char *pos = content;
	u16 i;

	memset(content, ' ', len);
	for (i = 0; i < size; i++) {
		if (result)
			strncpy(pos, result[i], strlen(result[i]));
		else
			strncpy(pos, items[i].name, strlen(items[i].name));

		pos += strlen(items[i].name) + items[i].interval;
	}

	*pos++ = '\n';
	*pos++ = '\0';
}

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static int hns3_dbg_queue_info(struct hnae3_handle *h,
			       const char *cmd_buf)
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{
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	struct hnae3_ae_dev *ae_dev = pci_get_drvdata(h->pdev);
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	struct hns3_nic_priv *priv = h->priv;
	struct hns3_enet_ring *ring;
	u32 base_add_l, base_add_h;
	u32 queue_num, queue_max;
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	u32 value, i;
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	int cnt;

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

	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.
		 */
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		if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) ||
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		    test_bit(HNS3_NIC_STATE_RESETTING, &priv->state))
			return -EPERM;

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		ring = &priv->ring[(u32)(i + h->kinfo.num_tqps)];
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		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);
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		dev_info(&h->pdev->dev, "RX(%u) BASE ADD: 0x%08x%08x\n", i,
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			 base_add_h, base_add_l);

		value = readl_relaxed(ring->tqp->io_base +
				      HNS3_RING_RX_RING_BD_NUM_REG);
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		dev_info(&h->pdev->dev, "RX(%u) RING BD NUM: %u\n", i, value);
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		value = readl_relaxed(ring->tqp->io_base +
				      HNS3_RING_RX_RING_BD_LEN_REG);
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		dev_info(&h->pdev->dev, "RX(%u) RING BD LEN: %u\n", i, value);
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		value = readl_relaxed(ring->tqp->io_base +
				      HNS3_RING_RX_RING_TAIL_REG);
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		dev_info(&h->pdev->dev, "RX(%u) RING TAIL: %u\n", i, value);
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		value = readl_relaxed(ring->tqp->io_base +
				      HNS3_RING_RX_RING_HEAD_REG);
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		dev_info(&h->pdev->dev, "RX(%u) RING HEAD: %u\n", i, value);
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		value = readl_relaxed(ring->tqp->io_base +
				      HNS3_RING_RX_RING_FBDNUM_REG);
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		dev_info(&h->pdev->dev, "RX(%u) RING FBDNUM: %u\n", i, value);
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		value = readl_relaxed(ring->tqp->io_base +
				      HNS3_RING_RX_RING_PKTNUM_RECORD_REG);
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		dev_info(&h->pdev->dev, "RX(%u) RING PKTNUM: %u\n", i, value);
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		ring = &priv->ring[i];
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		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);
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		dev_info(&h->pdev->dev, "TX(%u) BASE ADD: 0x%08x%08x\n", i,
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			 base_add_h, base_add_l);

		value = readl_relaxed(ring->tqp->io_base +
				      HNS3_RING_TX_RING_BD_NUM_REG);
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		dev_info(&h->pdev->dev, "TX(%u) RING BD NUM: %u\n", i, value);
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		value = readl_relaxed(ring->tqp->io_base +
				      HNS3_RING_TX_RING_TC_REG);
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		dev_info(&h->pdev->dev, "TX(%u) RING TC: %u\n", i, value);
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		value = readl_relaxed(ring->tqp->io_base +
				      HNS3_RING_TX_RING_TAIL_REG);
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		dev_info(&h->pdev->dev, "TX(%u) RING TAIL: %u\n", i, value);
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		value = readl_relaxed(ring->tqp->io_base +
				      HNS3_RING_TX_RING_HEAD_REG);
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		dev_info(&h->pdev->dev, "TX(%u) RING HEAD: %u\n", i, value);
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		value = readl_relaxed(ring->tqp->io_base +
				      HNS3_RING_TX_RING_FBDNUM_REG);
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		dev_info(&h->pdev->dev, "TX(%u) RING FBDNUM: %u\n", i, value);
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		value = readl_relaxed(ring->tqp->io_base +
				      HNS3_RING_TX_RING_OFFSET_REG);
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		dev_info(&h->pdev->dev, "TX(%u) RING OFFSET: %u\n", i, value);
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		value = readl_relaxed(ring->tqp->io_base +
				      HNS3_RING_TX_RING_PKTNUM_RECORD_REG);
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		dev_info(&h->pdev->dev, "TX(%u) RING PKTNUM: %u\n", i, value);

		value = readl_relaxed(ring->tqp->io_base + HNS3_RING_EN_REG);
		dev_info(&h->pdev->dev, "TX/RX(%u) RING EN: %s\n", i,
			 value ? "enable" : "disable");

		if (hnae3_ae_dev_tqp_txrx_indep_supported(ae_dev)) {
			value = readl_relaxed(ring->tqp->io_base +
					      HNS3_RING_TX_EN_REG);
			dev_info(&h->pdev->dev, "TX(%u) RING EN: %s\n", i,
				 value ? "enable" : "disable");

			value = readl_relaxed(ring->tqp->io_base +
					      HNS3_RING_RX_EN_REG);
			dev_info(&h->pdev->dev, "RX(%u) RING EN: %s\n", i,
				 value ? "enable" : "disable");
		}

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

	return 0;
}

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static const struct hns3_dbg_item queue_map_items[] = {
	{ "local_queue_id", 2 },
	{ "global_queue_id", 2 },
	{ "vector_id", 2 },
};

static int hns3_dbg_queue_map(struct hnae3_handle *h, char *buf, int len)
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{
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	char data_str[ARRAY_SIZE(queue_map_items)][HNS3_DBG_DATA_STR_LEN];
	char *result[ARRAY_SIZE(queue_map_items)];
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	struct hns3_nic_priv *priv = h->priv;
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	char content[HNS3_DBG_INFO_LEN];
	int pos = 0;
	int j;
	u32 i;
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	if (!h->ae_algo->ops->get_global_queue_id)
		return -EOPNOTSUPP;

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	for (i = 0; i < ARRAY_SIZE(queue_map_items); i++)
		result[i] = &data_str[i][0];
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	hns3_dbg_fill_content(content, sizeof(content), queue_map_items,
			      NULL, ARRAY_SIZE(queue_map_items));
	pos += scnprintf(buf + pos, len - pos, "%s", content);
	for (i = 0; i < h->kinfo.num_tqps; i++) {
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		if (!priv->ring || !priv->ring[i].tqp_vector)
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			continue;
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		j = 0;
		sprintf(result[j++], "%u", i);
		sprintf(result[j++], "%u",
			h->ae_algo->ops->get_global_queue_id(h, i));
		sprintf(result[j++], "%u",
			priv->ring[i].tqp_vector->vector_irq);
		hns3_dbg_fill_content(content, sizeof(content), queue_map_items,
				      (const char **)result,
				      ARRAY_SIZE(queue_map_items));
		pos += scnprintf(buf + pos, len - pos, "%s", content);
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	}

	return 0;
}

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static const struct hns3_dbg_item rx_bd_info_items[] = {
	{ "BD_IDX", 3 },
	{ "L234_INFO", 2 },
	{ "PKT_LEN", 3 },
	{ "SIZE", 4 },
	{ "RSS_HASH", 4 },
	{ "FD_ID", 2 },
	{ "VLAN_TAG", 2 },
	{ "O_DM_VLAN_ID_FB", 2 },
	{ "OT_VLAN_TAG", 2 },
	{ "BD_BASE_INFO", 2 },
	{ "PTYPE", 2 },
	{ "HW_CSUM", 2 },
};

static void hns3_dump_rx_bd_info(struct hns3_nic_priv *priv,
				 struct hns3_desc *desc, char **result, int idx)
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{
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	unsigned int j = 0;

	sprintf(result[j++], "%5d", idx);
	sprintf(result[j++], "%#x", le32_to_cpu(desc->rx.l234_info));
	sprintf(result[j++], "%7u", le16_to_cpu(desc->rx.pkt_len));
	sprintf(result[j++], "%4u", le16_to_cpu(desc->rx.size));
	sprintf(result[j++], "%#x", le32_to_cpu(desc->rx.rss_hash));
	sprintf(result[j++], "%5u", le16_to_cpu(desc->rx.fd_id));
	sprintf(result[j++], "%8u", le16_to_cpu(desc->rx.vlan_tag));
	sprintf(result[j++], "%15u", le16_to_cpu(desc->rx.o_dm_vlan_id_fb));
	sprintf(result[j++], "%11u", le16_to_cpu(desc->rx.ot_vlan_tag));
	sprintf(result[j++], "%#x", le32_to_cpu(desc->rx.bd_base_info));
	if (test_bit(HNS3_NIC_STATE_RXD_ADV_LAYOUT_ENABLE, &priv->state)) {
		u32 ol_info = le32_to_cpu(desc->rx.ol_info);

		sprintf(result[j++], "%5lu", hnae3_get_field(ol_info,
							     HNS3_RXD_PTYPE_M,
							     HNS3_RXD_PTYPE_S));
		sprintf(result[j++], "%7u", le16_to_cpu(desc->csum));
	} else {
		sprintf(result[j++], "NA");
		sprintf(result[j++], "NA");
	}
}

static int hns3_dbg_rx_bd_info(struct hns3_dbg_data *d, char *buf, int len)
{
	char data_str[ARRAY_SIZE(rx_bd_info_items)][HNS3_DBG_DATA_STR_LEN];
	struct hns3_nic_priv *priv = d->handle->priv;
	char *result[ARRAY_SIZE(rx_bd_info_items)];
	char content[HNS3_DBG_INFO_LEN];
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	struct hns3_enet_ring *ring;
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	struct hns3_desc *desc;
	unsigned int i;
	int pos = 0;
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	if (d->qid >= d->handle->kinfo.num_tqps) {
		dev_err(&d->handle->pdev->dev,
			"queue%u is not in use\n", d->qid);
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		return -EINVAL;
	}

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	for (i = 0; i < ARRAY_SIZE(rx_bd_info_items); i++)
		result[i] = &data_str[i][0];

	pos += scnprintf(buf + pos, len - pos,
			  "Queue %u rx bd info:\n", d->qid);
	hns3_dbg_fill_content(content, sizeof(content), rx_bd_info_items,
			      NULL, ARRAY_SIZE(rx_bd_info_items));
	pos += scnprintf(buf + pos, len - pos, "%s", content);

	ring = &priv->ring[d->qid + d->handle->kinfo.num_tqps];
	for (i = 0; i < ring->desc_num; i++) {
		desc = &ring->desc[i];

		hns3_dump_rx_bd_info(priv, desc, result, i);
		hns3_dbg_fill_content(content, sizeof(content),
				      rx_bd_info_items, (const char **)result,
				      ARRAY_SIZE(rx_bd_info_items));
		pos += scnprintf(buf + pos, len - pos, "%s", content);
537 538
	}

539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554
	return 0;
}

static const struct hns3_dbg_item tx_bd_info_items[] = {
	{ "BD_IDX", 5 },
	{ "ADDRESS", 2 },
	{ "VLAN_TAG", 2 },
	{ "SIZE", 2 },
	{ "T_CS_VLAN_TSO", 2 },
	{ "OT_VLAN_TAG", 3 },
	{ "TV", 2 },
	{ "OLT_VLAN_LEN", 2},
	{ "PAYLEN_OL4CS", 2},
	{ "BD_FE_SC_VLD", 2},
	{ "MSS_HW_CSUM", 0},
};
555

556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589
static void hns3_dump_tx_bd_info(struct hns3_nic_priv *priv,
				 struct hns3_desc *desc, char **result, int idx)
{
	unsigned int j = 0;

	sprintf(result[j++], "%6d", idx);
	sprintf(result[j++], "%#llx", le64_to_cpu(desc->addr));
	sprintf(result[j++], "%5u", le16_to_cpu(desc->tx.vlan_tag));
	sprintf(result[j++], "%5u", le16_to_cpu(desc->tx.send_size));
	sprintf(result[j++], "%#x",
		le32_to_cpu(desc->tx.type_cs_vlan_tso_len));
	sprintf(result[j++], "%5u", le16_to_cpu(desc->tx.outer_vlan_tag));
	sprintf(result[j++], "%5u", le16_to_cpu(desc->tx.tv));
	sprintf(result[j++], "%10u",
		le32_to_cpu(desc->tx.ol_type_vlan_len_msec));
	sprintf(result[j++], "%#x", le32_to_cpu(desc->tx.paylen_ol4cs));
	sprintf(result[j++], "%#x", le16_to_cpu(desc->tx.bdtp_fe_sc_vld_ra_ri));
	sprintf(result[j++], "%5u", le16_to_cpu(desc->tx.mss_hw_csum));
}

static int hns3_dbg_tx_bd_info(struct hns3_dbg_data *d, char *buf, int len)
{
	char data_str[ARRAY_SIZE(tx_bd_info_items)][HNS3_DBG_DATA_STR_LEN];
	struct hns3_nic_priv *priv = d->handle->priv;
	char *result[ARRAY_SIZE(tx_bd_info_items)];
	char content[HNS3_DBG_INFO_LEN];
	struct hns3_enet_ring *ring;
	struct hns3_desc *desc;
	unsigned int i;
	int pos = 0;

	if (d->qid >= d->handle->kinfo.num_tqps) {
		dev_err(&d->handle->pdev->dev,
			"queue%u is not in use\n", d->qid);
590 591 592
		return -EINVAL;
	}

593 594 595 596 597 598 599 600
	for (i = 0; i < ARRAY_SIZE(tx_bd_info_items); i++)
		result[i] = &data_str[i][0];

	pos += scnprintf(buf + pos, len - pos,
			  "Queue %u tx bd info:\n", d->qid);
	hns3_dbg_fill_content(content, sizeof(content), tx_bd_info_items,
			      NULL, ARRAY_SIZE(tx_bd_info_items));
	pos += scnprintf(buf + pos, len - pos, "%s", content);
601

602 603 604 605 606 607 608 609 610 611
	ring = &priv->ring[d->qid];
	for (i = 0; i < ring->desc_num; i++) {
		desc = &ring->desc[i];

		hns3_dump_tx_bd_info(priv, desc, result, i);
		hns3_dbg_fill_content(content, sizeof(content),
				      tx_bd_info_items, (const char **)result,
				      ARRAY_SIZE(tx_bd_info_items));
		pos += scnprintf(buf + pos, len - pos, "%s", content);
	}
612 613 614 615

	return 0;
}

616 617 618
static void hns3_dbg_help(struct hnae3_handle *h)
{
	dev_info(&h->pdev->dev, "available commands\n");
619
	dev_info(&h->pdev->dev, "queue info <number>\n");
620 621 622 623

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

624
	dev_info(&h->pdev->dev, "dump fd tcam\n");
625
	dev_info(&h->pdev->dev, "dump tc\n");
626
	dev_info(&h->pdev->dev, "dump tm map <q_num>\n");
627
	dev_info(&h->pdev->dev, "dump tm\n");
628
	dev_info(&h->pdev->dev, "dump qos pause cfg\n");
629
	dev_info(&h->pdev->dev, "dump qos pri map\n");
630
	dev_info(&h->pdev->dev, "dump qos buf cfg\n");
631
	dev_info(&h->pdev->dev, "dump mac tnl status\n");
632
	dev_info(&h->pdev->dev, "dump qs shaper [qs id]\n");
633 634
}

635 636
static void
hns3_dbg_dev_caps(struct hnae3_handle *h, char *buf, int len, int *pos)
637 638
{
	struct hnae3_ae_dev *ae_dev = pci_get_drvdata(h->pdev);
639 640 641 642 643 644 645 646 647 648 649 650 651
	static const char * const str[] = {"no", "yes"};
	unsigned long *caps = ae_dev->caps;
	u32 i, state;

	*pos += scnprintf(buf + *pos, len - *pos, "dev capability:\n");

	for (i = 0; i < ARRAY_SIZE(hns3_dbg_cap); i++) {
		state = test_bit(hns3_dbg_cap[i].cap_bit, caps);
		*pos += scnprintf(buf + *pos, len - *pos, "%s: %s\n",
				  hns3_dbg_cap[i].name, str[state]);
	}

	*pos += scnprintf(buf + *pos, len - *pos, "\n");
652 653
}

654 655
static void
hns3_dbg_dev_specs(struct hnae3_handle *h, char *buf, int len, int *pos)
656 657 658 659
{
	struct hnae3_ae_dev *ae_dev = pci_get_drvdata(h->pdev);
	struct hnae3_dev_specs *dev_specs = &ae_dev->dev_specs;
	struct hnae3_knic_private_info *kinfo = &h->kinfo;
660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706

	*pos += scnprintf(buf + *pos, len - *pos, "dev_spec:\n");
	*pos += scnprintf(buf + *pos, len - *pos, "MAC entry num: %u\n",
			  dev_specs->mac_entry_num);
	*pos += scnprintf(buf + *pos, len - *pos, "MNG entry num: %u\n",
			  dev_specs->mng_entry_num);
	*pos += scnprintf(buf + *pos, len - *pos, "MAX non tso bd num: %u\n",
			  dev_specs->max_non_tso_bd_num);
	*pos += scnprintf(buf + *pos, len - *pos, "RSS ind tbl size: %u\n",
			  dev_specs->rss_ind_tbl_size);
	*pos += scnprintf(buf + *pos, len - *pos, "RSS key size: %u\n",
			  dev_specs->rss_key_size);
	*pos += scnprintf(buf + *pos, len - *pos, "RSS size: %u\n",
			  kinfo->rss_size);
	*pos += scnprintf(buf + *pos, len - *pos, "Allocated RSS size: %u\n",
			  kinfo->req_rss_size);
	*pos += scnprintf(buf + *pos, len - *pos,
			  "Task queue pairs numbers: %u\n",
			  kinfo->num_tqps);
	*pos += scnprintf(buf + *pos, len - *pos, "RX buffer length: %u\n",
			  kinfo->rx_buf_len);
	*pos += scnprintf(buf + *pos, len - *pos, "Desc num per TX queue: %u\n",
			  kinfo->num_tx_desc);
	*pos += scnprintf(buf + *pos, len - *pos, "Desc num per RX queue: %u\n",
			  kinfo->num_rx_desc);
	*pos += scnprintf(buf + *pos, len - *pos,
			  "Total number of enabled TCs: %u\n",
			  kinfo->tc_info.num_tc);
	*pos += scnprintf(buf + *pos, len - *pos, "MAX INT QL: %u\n",
			  dev_specs->int_ql_max);
	*pos += scnprintf(buf + *pos, len - *pos, "MAX INT GL: %u\n",
			  dev_specs->max_int_gl);
	*pos += scnprintf(buf + *pos, len - *pos, "MAX TM RATE: %u\n",
			  dev_specs->max_tm_rate);
	*pos += scnprintf(buf + *pos, len - *pos, "MAX QSET number: %u\n",
			  dev_specs->max_qset_num);
}

static int hns3_dbg_dev_info(struct hnae3_handle *h, char *buf, int len)
{
	int pos = 0;

	hns3_dbg_dev_caps(h, buf, len, &pos);

	hns3_dbg_dev_specs(h, buf, len, &pos);

	return 0;
707 708
}

709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725
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;

726 727
	len = scnprintf(buf, HNS3_DBG_READ_LEN, "%s\n",
			"Please echo help to cmd to get help information");
728 729 730 731 732 733 734 735 736 737
	uncopy_bytes = copy_to_user(buffer, buf, len);

	kfree(buf);

	if (uncopy_bytes)
		return -EFAULT;

	return (*ppos = len);
}

738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753
static int hns3_dbg_check_cmd(struct hnae3_handle *handle, char *cmd_buf)
{
	int ret = 0;

	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 (handle->ae_algo->ops->dbg_run_cmd)
		ret = handle->ae_algo->ops->dbg_run_cmd(handle, cmd_buf);
	else
		ret = -EOPNOTSUPP;

	return ret;
}

754 755 756 757
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;
758
	struct hns3_nic_priv *priv  = handle->priv;
759 760
	char *cmd_buf, *cmd_buf_tmp;
	int uncopied_bytes;
761
	int ret;
762 763 764 765

	if (*ppos != 0)
		return 0;

766
	/* Judge if the instance is being reset. */
767
	if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) ||
768 769 770
	    test_bit(HNS3_NIC_STATE_RESETTING, &priv->state))
		return 0;

771 772 773
	if (count > HNS3_DBG_WRITE_LEN)
		return -ENOSPC;

774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791
	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;
	}

792
	ret = hns3_dbg_check_cmd(handle, cmd_buf);
793 794 795 796 797 798 799 800 801
	if (ret)
		hns3_dbg_help(handle);

	kfree(cmd_buf);
	cmd_buf = NULL;

	return count;
}

802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818
static int hns3_dbg_get_cmd_index(struct hnae3_handle *handle,
				  const unsigned char *name, u32 *index)
{
	u32 i;

	for (i = 0; i < ARRAY_SIZE(hns3_dbg_cmd); i++) {
		if (!strncmp(name, hns3_dbg_cmd[i].name,
			     strlen(hns3_dbg_cmd[i].name))) {
			*index = i;
			return 0;
		}
	}

	dev_err(&handle->pdev->dev, "unknown command(%s)\n", name);
	return -EINVAL;
}

819
static const struct hns3_dbg_func hns3_dbg_cmd_func[] = {
820 821 822 823
	{
		.cmd = HNAE3_DBG_CMD_QUEUE_MAP,
		.dbg_dump = hns3_dbg_queue_map,
	},
824 825 826 827
	{
		.cmd = HNAE3_DBG_CMD_DEV_INFO,
		.dbg_dump = hns3_dbg_dev_info,
	},
828 829 830 831 832 833 834 835
	{
		.cmd = HNAE3_DBG_CMD_TX_BD,
		.dbg_dump_bd = hns3_dbg_tx_bd_info,
	},
	{
		.cmd = HNAE3_DBG_CMD_RX_BD,
		.dbg_dump_bd = hns3_dbg_rx_bd_info,
	},
836 837
};

838
static int hns3_dbg_read_cmd(struct hns3_dbg_data *dbg_data,
839 840
			     enum hnae3_dbg_cmd cmd, char *buf, int len)
{
841 842
	const struct hnae3_ae_ops *ops = dbg_data->handle->ae_algo->ops;
	const struct hns3_dbg_func *cmd_func;
843 844 845
	u32 i;

	for (i = 0; i < ARRAY_SIZE(hns3_dbg_cmd_func); i++) {
846 847 848 849 850 851 852 853 854
		if (cmd == hns3_dbg_cmd_func[i].cmd) {
			cmd_func = &hns3_dbg_cmd_func[i];
			if (cmd_func->dbg_dump)
				return cmd_func->dbg_dump(dbg_data->handle, buf,
							  len);
			else
				return cmd_func->dbg_dump_bd(dbg_data, buf,
							     len);
		}
855
	}
856 857 858 859

	if (!ops->dbg_read_cmd)
		return -EOPNOTSUPP;

860
	return ops->dbg_read_cmd(dbg_data->handle, cmd, buf, len);
861 862
}

863 864 865
static ssize_t hns3_dbg_read(struct file *filp, char __user *buffer,
			     size_t count, loff_t *ppos)
{
866 867
	struct hns3_dbg_data *dbg_data = filp->private_data;
	struct hnae3_handle *handle = dbg_data->handle;
868 869
	struct hns3_nic_priv *priv = handle->priv;
	ssize_t size = 0;
870 871 872 873
	char **save_buf;
	char *read_buf;
	u32 index;
	int ret;
874

875 876 877 878
	ret = hns3_dbg_get_cmd_index(handle, filp->f_path.dentry->d_iname,
				     &index);
	if (ret)
		return ret;
879

880
	save_buf = &hns3_dbg_cmd[index].buf;
881

882 883 884
	if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) ||
	    test_bit(HNS3_NIC_STATE_RESETTING, &priv->state)) {
		ret = -EBUSY;
885 886 887
		goto out;
	}

888 889 890 891 892 893 894 895 896 897 898 899 900
	if (*save_buf) {
		read_buf = *save_buf;
	} else {
		read_buf = kvzalloc(hns3_dbg_cmd[index].buf_len, GFP_KERNEL);
		if (!read_buf)
			return -ENOMEM;

		/* save the buffer addr until the last read operation */
		*save_buf = read_buf;
	}

	/* get data ready for the first time to read */
	if (!*ppos) {
901
		ret = hns3_dbg_read_cmd(dbg_data, hns3_dbg_cmd[index].cmd,
902 903 904 905 906
					read_buf, hns3_dbg_cmd[index].buf_len);
		if (ret)
			goto out;
	}

907 908
	size = simple_read_from_buffer(buffer, count, ppos, read_buf,
				       strlen(read_buf));
909 910
	if (size > 0)
		return size;
911 912

out:
913 914 915 916 917 918 919
	/* free the buffer for the last read operation */
	if (*save_buf) {
		kvfree(*save_buf);
		*save_buf = NULL;
	}

	return ret;
920 921
}

922 923 924 925 926 927 928
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,
};

929 930 931 932 933 934
static const struct file_operations hns3_dbg_fops = {
	.owner = THIS_MODULE,
	.open  = simple_open,
	.read  = hns3_dbg_read,
};

935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961
static int hns3_dbg_bd_file_init(struct hnae3_handle *handle, u32 cmd)
{
	struct dentry *entry_dir;
	struct hns3_dbg_data *data;
	u16 max_queue_num;
	unsigned int i;

	entry_dir = hns3_dbg_dentry[hns3_dbg_cmd[cmd].dentry].dentry;
	max_queue_num = hns3_get_max_available_channels(handle);
	data = devm_kzalloc(&handle->pdev->dev, max_queue_num * sizeof(*data),
			    GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	for (i = 0; i < max_queue_num; i++) {
		char name[HNS3_DBG_FILE_NAME_LEN];

		data[i].handle = handle;
		data[i].qid = i;
		sprintf(name, "%s%u", hns3_dbg_cmd[cmd].name, i);
		debugfs_create_file(name, 0400, entry_dir, &data[i],
				    &hns3_dbg_fops);
	}

	return 0;
}

962 963 964
static int
hns3_dbg_common_file_init(struct hnae3_handle *handle, u32 cmd)
{
965
	struct hns3_dbg_data *data;
966 967
	struct dentry *entry_dir;

968 969 970 971 972
	data = devm_kzalloc(&handle->pdev->dev, sizeof(*data), GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	data->handle = handle;
973 974
	entry_dir = hns3_dbg_dentry[hns3_dbg_cmd[cmd].dentry].dentry;
	debugfs_create_file(hns3_dbg_cmd[cmd].name, 0400, entry_dir,
975
			    data, &hns3_dbg_fops);
976 977 978 979 980

	return 0;
}

int hns3_dbg_init(struct hnae3_handle *handle)
981
{
982
	struct hnae3_ae_dev *ae_dev = pci_get_drvdata(handle->pdev);
983
	const char *name = pci_name(handle->pdev);
984 985
	int ret;
	u32 i;
986

987 988 989
	hns3_dbg_dentry[HNS3_DBG_DENTRY_COMMON].dentry =
				debugfs_create_dir(name, hns3_dbgfs_root);
	handle->hnae3_dbgfs = hns3_dbg_dentry[HNS3_DBG_DENTRY_COMMON].dentry;
990

991 992
	debugfs_create_file("cmd", 0600, handle->hnae3_dbgfs, handle,
			    &hns3_dbg_cmd_fops);
993

994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025
	for (i = 0; i < HNS3_DBG_DENTRY_COMMON; i++)
		hns3_dbg_dentry[i].dentry =
			debugfs_create_dir(hns3_dbg_dentry[i].name,
					   handle->hnae3_dbgfs);

	for (i = 0; i < ARRAY_SIZE(hns3_dbg_cmd); i++) {
		if (hns3_dbg_cmd[i].cmd == HNAE3_DBG_CMD_TM_NODES &&
		    ae_dev->dev_version <= HNAE3_DEVICE_VERSION_V2)
			continue;

		if (!hns3_dbg_cmd[i].init) {
			dev_err(&handle->pdev->dev,
				"cmd %s lack of init func\n",
				hns3_dbg_cmd[i].name);
			ret = -EINVAL;
			goto out;
		}

		ret = hns3_dbg_cmd[i].init(handle, i);
		if (ret) {
			dev_err(&handle->pdev->dev, "failed to init cmd %s\n",
				hns3_dbg_cmd[i].name);
			goto out;
		}
	}

	return 0;

out:
	debugfs_remove_recursive(handle->hnae3_dbgfs);
	handle->hnae3_dbgfs = NULL;
	return ret;
1026 1027 1028 1029
}

void hns3_dbg_uninit(struct hnae3_handle *handle)
{
1030 1031 1032 1033 1034 1035 1036 1037
	u32 i;

	for (i = 0; i < ARRAY_SIZE(hns3_dbg_cmd); i++)
		if (hns3_dbg_cmd[i].buf) {
			kvfree(hns3_dbg_cmd[i].buf);
			hns3_dbg_cmd[i].buf = NULL;
		}

1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051
	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;
}