drivers/platform/msm/ipa/ipa_v3/ipa_debugfs.c

/* Copyright (c) 2012-2019, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#ifdef CONFIG_DEBUG_FS

#include <linux/debugfs.h>
#include <linux/kernel.h>
#include <linux/stringify.h>
#include "ipa_i.h"
#include "../ipa_rm_i.h"
#include "ipahal/ipahal_nat.h"

#define IPA_MAX_ENTRY_STRING_LEN 500
#define IPA_MAX_MSG_LEN 4096
#define IPA_DBG_MAX_RULE_IN_TBL 128
#define IPA_DBG_ACTIVE_CLIENT_BUF_SIZE ((IPA3_ACTIVE_CLIENTS_LOG_LINE_LEN \
	* IPA3_ACTIVE_CLIENTS_LOG_BUFFER_SIZE_LINES) + IPA_MAX_MSG_LEN)

#define IPA_DUMP_STATUS_FIELD(f) \
	pr_err(#f "=0x%x\n", status->f)

#define IPA_READ_ONLY_MODE  0444
#define IPA_READ_WRITE_MODE 0664
#define IPA_WRITE_ONLY_MODE 0220

struct ipa3_debugfs_file {
	const char *name;
	umode_t mode;
	void *data;
	const struct file_operations fops;
};


const char *ipa3_event_name[] = {
	__stringify(WLAN_CLIENT_CONNECT),
	__stringify(WLAN_CLIENT_DISCONNECT),
	__stringify(WLAN_CLIENT_POWER_SAVE_MODE),
	__stringify(WLAN_CLIENT_NORMAL_MODE),
	__stringify(SW_ROUTING_ENABLE),
	__stringify(SW_ROUTING_DISABLE),
	__stringify(WLAN_AP_CONNECT),
	__stringify(WLAN_AP_DISCONNECT),
	__stringify(WLAN_STA_CONNECT),
	__stringify(WLAN_STA_DISCONNECT),
	__stringify(WLAN_CLIENT_CONNECT_EX),
	__stringify(WLAN_SWITCH_TO_SCC),
	__stringify(WLAN_SWITCH_TO_MCC),
	__stringify(WLAN_WDI_ENABLE),
	__stringify(WLAN_WDI_DISABLE),
	__stringify(WAN_UPSTREAM_ROUTE_ADD),
	__stringify(WAN_UPSTREAM_ROUTE_DEL),
	__stringify(WAN_EMBMS_CONNECT),
	__stringify(WAN_XLAT_CONNECT),
	__stringify(ECM_CONNECT),
	__stringify(ECM_DISCONNECT),
	__stringify(IPA_TETHERING_STATS_UPDATE_STATS),
	__stringify(IPA_TETHERING_STATS_UPDATE_NETWORK_STATS),
	__stringify(IPA_QUOTA_REACH),
	__stringify(IPA_SSR_BEFORE_SHUTDOWN),
	__stringify(IPA_SSR_AFTER_POWERUP),
	__stringify(ADD_VLAN_IFACE),
	__stringify(DEL_VLAN_IFACE),
	__stringify(ADD_L2TP_VLAN_MAPPING),
	__stringify(DEL_L2TP_VLAN_MAPPING),
	__stringify(IPA_PER_CLIENT_STATS_CONNECT_EVENT),
	__stringify(IPA_PER_CLIENT_STATS_DISCONNECT_EVENT),
	__stringify(ADD_BRIDGE_VLAN_MAPPING),
	__stringify(DEL_BRIDGE_VLAN_MAPPING),
	__stringify(WLAN_FWR_SSR_BEFORE_SHUTDOWN),
	__stringify(IPA_GSB_CONNECT),
	__stringify(IPA_GSB_DISCONNECT),
};

const char *ipa3_hdr_l2_type_name[] = {
	__stringify(IPA_HDR_L2_NONE),
	__stringify(IPA_HDR_L2_ETHERNET_II),
	__stringify(IPA_HDR_L2_802_3),
};

const char *ipa3_hdr_proc_type_name[] = {
	__stringify(IPA_HDR_PROC_NONE),
	__stringify(IPA_HDR_PROC_ETHII_TO_ETHII),
	__stringify(IPA_HDR_PROC_ETHII_TO_802_3),
	__stringify(IPA_HDR_PROC_802_3_TO_ETHII),
	__stringify(IPA_HDR_PROC_802_3_TO_802_3),
	__stringify(IPA_HDR_PROC_L2TP_HEADER_ADD),
	__stringify(IPA_HDR_PROC_L2TP_HEADER_REMOVE),
};

static struct dentry *dent;
static char dbg_buff[IPA_MAX_MSG_LEN];
static char *active_clients_buf;

static s8 ep_reg_idx;
static void *ipa_ipc_low_buff;


static ssize_t ipa3_read_gen_reg(struct file *file, char __user *ubuf,
		size_t count, loff_t *ppos)
{
	int nbytes;
	struct ipahal_reg_shared_mem_size smem_sz;

	memset(&smem_sz, 0, sizeof(smem_sz));

	IPA_ACTIVE_CLIENTS_INC_SIMPLE();

	ipahal_read_reg_fields(IPA_SHARED_MEM_SIZE, &smem_sz);
	nbytes = scnprintf(dbg_buff, IPA_MAX_MSG_LEN,
			"IPA_VERSION=0x%x\n"
			"IPA_COMP_HW_VERSION=0x%x\n"
			"IPA_ROUTE=0x%x\n"
			"IPA_SHARED_MEM_RESTRICTED=0x%x\n"
			"IPA_SHARED_MEM_SIZE=0x%x\n",
			ipahal_read_reg(IPA_VERSION),
			ipahal_read_reg(IPA_COMP_HW_VERSION),
			ipahal_read_reg(IPA_ROUTE),
			smem_sz.shared_mem_baddr,
			smem_sz.shared_mem_sz);

	IPA_ACTIVE_CLIENTS_DEC_SIMPLE();

	return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, nbytes);
}

static ssize_t ipa3_write_ep_holb(struct file *file,
		const char __user *buf, size_t count, loff_t *ppos)
{
	struct ipa_ep_cfg_holb holb;
	u32 en;
	u32 tmr_val;
	u32 ep_idx;
	unsigned long missing;
	char *sptr, *token;

	if (sizeof(dbg_buff) < count + 1)
		return -EFAULT;

	missing = copy_from_user(dbg_buff, buf, count);
	if (missing)
		return -EFAULT;

	dbg_buff[count] = '\0';

	sptr = dbg_buff;

	token = strsep(&sptr, " ");
	if (!token)
		return -EINVAL;
	if (kstrtou32(token, 0, &ep_idx))
		return -EINVAL;

	token = strsep(&sptr, " ");
	if (!token)
		return -EINVAL;
	if (kstrtou32(token, 0, &en))
		return -EINVAL;

	token = strsep(&sptr, " ");
	if (!token)
		return -EINVAL;
	if (kstrtou32(token, 0, &tmr_val))
		return -EINVAL;

	holb.en = en;
	holb.tmr_val = tmr_val;

	ipa3_cfg_ep_holb(ep_idx, &holb);

	return count;
}

static ssize_t ipa3_write_ep_reg(struct file *file, const char __user *buf,
		size_t count, loff_t *ppos)
{
	unsigned long missing;
	s8 option = 0;

	if (sizeof(dbg_buff) < count + 1)
		return -EFAULT;

	missing = copy_from_user(dbg_buff, buf, count);
	if (missing)
		return -EFAULT;

	dbg_buff[count] = '\0';
	if (kstrtos8(dbg_buff, 0, &option))
		return -EFAULT;

	if (option >= ipa3_ctx->ipa_num_pipes) {
		IPAERR("bad pipe specified %u\n", option);
		return count;
	}

	ep_reg_idx = option;

	return count;
}

/**
 * _ipa_read_ep_reg_v3_0() - Reads and prints endpoint configuration registers
 *
 * Returns the number of characters printed
 */
int _ipa_read_ep_reg_v3_0(char *buf, int max_len, int pipe)
{
	return scnprintf(
		dbg_buff, IPA_MAX_MSG_LEN,
		"IPA_ENDP_INIT_NAT_%u=0x%x\n"
		"IPA_ENDP_INIT_HDR_%u=0x%x\n"
		"IPA_ENDP_INIT_HDR_EXT_%u=0x%x\n"
		"IPA_ENDP_INIT_MODE_%u=0x%x\n"
		"IPA_ENDP_INIT_AGGR_%u=0x%x\n"
		"IPA_ENDP_INIT_ROUTE_%u=0x%x\n"
		"IPA_ENDP_INIT_CTRL_%u=0x%x\n"
		"IPA_ENDP_INIT_HOL_EN_%u=0x%x\n"
		"IPA_ENDP_INIT_HOL_TIMER_%u=0x%x\n"
		"IPA_ENDP_INIT_DEAGGR_%u=0x%x\n"
		"IPA_ENDP_INIT_CFG_%u=0x%x\n",
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_NAT_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_HDR_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_HDR_EXT_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_MODE_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_AGGR_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_ROUTE_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_CTRL_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_HOL_BLOCK_EN_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_HOL_BLOCK_TIMER_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_DEAGGR_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_CFG_n, pipe));
}

/**
 * _ipa_read_ep_reg_v4_0() - Reads and prints endpoint configuration registers
 *
 * Returns the number of characters printed
 * Removed IPA_ENDP_INIT_ROUTE_n from v3
 */
int _ipa_read_ep_reg_v4_0(char *buf, int max_len, int pipe)
{
	return scnprintf(
		dbg_buff, IPA_MAX_MSG_LEN,
		"IPA_ENDP_INIT_NAT_%u=0x%x\n"
		"IPA_ENDP_INIT_CONN_TRACK_n%u=0x%x\n"
		"IPA_ENDP_INIT_HDR_%u=0x%x\n"
		"IPA_ENDP_INIT_HDR_EXT_%u=0x%x\n"
		"IPA_ENDP_INIT_MODE_%u=0x%x\n"
		"IPA_ENDP_INIT_AGGR_%u=0x%x\n"
		"IPA_ENDP_INIT_CTRL_%u=0x%x\n"
		"IPA_ENDP_INIT_HOL_EN_%u=0x%x\n"
		"IPA_ENDP_INIT_HOL_TIMER_%u=0x%x\n"
		"IPA_ENDP_INIT_DEAGGR_%u=0x%x\n"
		"IPA_ENDP_INIT_CFG_%u=0x%x\n",
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_NAT_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_CONN_TRACK_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_HDR_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_HDR_EXT_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_MODE_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_AGGR_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_CTRL_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_HOL_BLOCK_EN_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_HOL_BLOCK_TIMER_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_DEAGGR_n, pipe),
		pipe, ipahal_read_reg_n(IPA_ENDP_INIT_CFG_n, pipe));
}

static ssize_t ipa3_read_ep_reg(struct file *file, char __user *ubuf,
		size_t count, loff_t *ppos)
{
	int nbytes;
	int i;
	int start_idx;
	int end_idx;
	int size = 0;
	int ret;
	loff_t pos;

	/* negative ep_reg_idx means all registers */
	if (ep_reg_idx < 0) {
		start_idx = 0;
		end_idx = ipa3_ctx->ipa_num_pipes;
	} else {
		start_idx = ep_reg_idx;
		end_idx = start_idx + 1;
	}
	pos = *ppos;
	IPA_ACTIVE_CLIENTS_INC_SIMPLE();
	for (i = start_idx; i < end_idx; i++) {

		nbytes = ipa3_ctx->ctrl->ipa3_read_ep_reg(dbg_buff,
				IPA_MAX_MSG_LEN, i);

		*ppos = pos;
		ret = simple_read_from_buffer(ubuf, count, ppos, dbg_buff,
					      nbytes);
		if (ret < 0) {
			IPA_ACTIVE_CLIENTS_DEC_SIMPLE();
			return ret;
		}

		size += ret;
		ubuf += nbytes;
		count -= nbytes;
	}
	IPA_ACTIVE_CLIENTS_DEC_SIMPLE();

	*ppos = pos + size;
	return size;
}

static ssize_t ipa3_write_keep_awake(struct file *file, const char __user *buf,
	size_t count, loff_t *ppos)
{
	unsigned long missing;
	s8 option = 0;

	if (sizeof(dbg_buff) < count + 1)
		return -EFAULT;

	missing = copy_from_user(dbg_buff, buf, count);
	if (missing)
		return -EFAULT;

	dbg_buff[count] = '\0';
	if (kstrtos8(dbg_buff, 0, &option))
		return -EFAULT;

	if (option == 1)
		IPA_ACTIVE_CLIENTS_INC_SIMPLE();
	else if (option == 0)
		IPA_ACTIVE_CLIENTS_DEC_SIMPLE();
	else
		return -EFAULT;

	return count;
}

static ssize_t ipa3_read_keep_awake(struct file *file, char __user *ubuf,
	size_t count, loff_t *ppos)
{
	int nbytes;

	mutex_lock(&ipa3_ctx->ipa3_active_clients.mutex);
	if (atomic_read(&ipa3_ctx->ipa3_active_clients.cnt))
		nbytes = scnprintf(dbg_buff, IPA_MAX_MSG_LEN,
				"IPA APPS power state is ON\n");
	else
		nbytes = scnprintf(dbg_buff, IPA_MAX_MSG_LEN,
				"IPA APPS power state is OFF\n");
	mutex_unlock(&ipa3_ctx->ipa3_active_clients.mutex);

	return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, nbytes);
}

static ssize_t ipa3_read_hdr(struct file *file, char __user *ubuf, size_t count,
		loff_t *ppos)
{
	int nbytes = 0;
	int i = 0;
	struct ipa3_hdr_entry *entry;

	mutex_lock(&ipa3_ctx->lock);

	if (ipa3_ctx->hdr_tbl_lcl)
		pr_err("Table resides on local memory\n");
	else
		pr_err("Table resides on system (ddr) memory\n");

	list_for_each_entry(entry, &ipa3_ctx->hdr_tbl.head_hdr_entry_list,
			link) {
		if (entry->cookie != IPA_HDR_COOKIE)
			continue;
		nbytes = scnprintf(
			dbg_buff,
			IPA_MAX_MSG_LEN,
			"name:%s len=%d ref=%d partial=%d type=%s ",
			entry->name,
			entry->hdr_len,
			entry->ref_cnt,
			entry->is_partial,
			ipa3_hdr_l2_type_name[entry->type]);

		if (entry->is_hdr_proc_ctx) {
			nbytes += scnprintf(
				dbg_buff + nbytes,
				IPA_MAX_MSG_LEN - nbytes,
				"phys_base=0x%pa ",
				&entry->phys_base);
		} else {
			nbytes += scnprintf(
				dbg_buff + nbytes,
				IPA_MAX_MSG_LEN - nbytes,
				"ofst=%u ",
				entry->offset_entry->offset >> 2);
		}
		for (i = 0; i < entry->hdr_len; i++) {
			scnprintf(dbg_buff + nbytes + i * 2,
				  IPA_MAX_MSG_LEN - nbytes - i * 2,
				  "%02x", entry->hdr[i]);
		}
		scnprintf(dbg_buff + nbytes + entry->hdr_len * 2,
			  IPA_MAX_MSG_LEN - nbytes - entry->hdr_len * 2,
			  "\n");
		pr_err("%s", dbg_buff);
	}
	mutex_unlock(&ipa3_ctx->lock);

	return 0;
}

static int ipa3_attrib_dump(struct ipa_rule_attrib *attrib,
		enum ipa_ip_type ip)
{
	uint32_t addr[4];
	uint32_t mask[4];
	int i;

	if (attrib->attrib_mask & IPA_FLT_TOS_MASKED)
		pr_err("tos_value:%d ", attrib->tos_value);

	if (attrib->attrib_mask & IPA_FLT_TOS_MASKED)
		pr_err("tos_mask:%d ", attrib->tos_mask);

	if (attrib->attrib_mask & IPA_FLT_PROTOCOL)
		pr_err("protocol:%d ", attrib->u.v4.protocol);

	if (attrib->attrib_mask & IPA_FLT_SRC_ADDR) {
		if (ip == IPA_IP_v4) {
			addr[0] = htonl(attrib->u.v4.src_addr);
			mask[0] = htonl(attrib->u.v4.src_addr_mask);
			pr_err(
					"src_addr:%pI4 src_addr_mask:%pI4 ",
					addr + 0, mask + 0);
		} else if (ip == IPA_IP_v6) {
			for (i = 0; i < 4; i++) {
				addr[i] = htonl(attrib->u.v6.src_addr[i]);
				mask[i] = htonl(attrib->u.v6.src_addr_mask[i]);
			}
			pr_err(
					   "src_addr:%pI6 src_addr_mask:%pI6 ",
					   addr + 0, mask + 0);
		} else {
			WARN_ON(1);
		}
	}
	if (attrib->attrib_mask & IPA_FLT_DST_ADDR) {
		if (ip == IPA_IP_v4) {
			addr[0] = htonl(attrib->u.v4.dst_addr);
			mask[0] = htonl(attrib->u.v4.dst_addr_mask);
			pr_err(
					   "dst_addr:%pI4 dst_addr_mask:%pI4 ",
					   addr + 0, mask + 0);
		} else if (ip == IPA_IP_v6) {
			for (i = 0; i < 4; i++) {
				addr[i] = htonl(attrib->u.v6.dst_addr[i]);
				mask[i] = htonl(attrib->u.v6.dst_addr_mask[i]);
			}
			pr_err(
					   "dst_addr:%pI6 dst_addr_mask:%pI6 ",
					   addr + 0, mask + 0);
		} else {
			WARN_ON(1);
		}
	}
	if (attrib->attrib_mask & IPA_FLT_SRC_PORT_RANGE) {
		pr_err("src_port_range:%u %u ",
				   attrib->src_port_lo,
			     attrib->src_port_hi);
	}
	if (attrib->attrib_mask & IPA_FLT_DST_PORT_RANGE) {
		pr_err("dst_port_range:%u %u ",
				   attrib->dst_port_lo,
			     attrib->dst_port_hi);
	}
	if (attrib->attrib_mask & IPA_FLT_TYPE)
		pr_err("type:%d ", attrib->type);

	if (attrib->attrib_mask & IPA_FLT_CODE)
		pr_err("code:%d ", attrib->code);

	if (attrib->attrib_mask & IPA_FLT_SPI)
		pr_err("spi:%x ", attrib->spi);

	if (attrib->attrib_mask & IPA_FLT_SRC_PORT)
		pr_err("src_port:%u ", attrib->src_port);

	if (attrib->attrib_mask & IPA_FLT_DST_PORT)
		pr_err("dst_port:%u ", attrib->dst_port);

	if (attrib->attrib_mask & IPA_FLT_TC)
		pr_err("tc:%d ", attrib->u.v6.tc);

	if (attrib->attrib_mask & IPA_FLT_FLOW_LABEL)
		pr_err("flow_label:%x ", attrib->u.v6.flow_label);

	if (attrib->attrib_mask & IPA_FLT_NEXT_HDR)
		pr_err("next_hdr:%d ", attrib->u.v6.next_hdr);

	if (attrib->attrib_mask & IPA_FLT_META_DATA) {
		pr_err(
				   "metadata:%x metadata_mask:%x ",
				   attrib->meta_data, attrib->meta_data_mask);
	}

	if (attrib->attrib_mask & IPA_FLT_FRAGMENT)
		pr_err("frg ");

	if ((attrib->attrib_mask & IPA_FLT_MAC_SRC_ADDR_ETHER_II) ||
		(attrib->attrib_mask & IPA_FLT_MAC_SRC_ADDR_802_3)) {
		pr_err("src_mac_addr:%pM ", attrib->src_mac_addr);
	}

	if ((attrib->attrib_mask & IPA_FLT_MAC_DST_ADDR_ETHER_II) ||
		(attrib->attrib_mask & IPA_FLT_MAC_DST_ADDR_802_3) ||
		(attrib->attrib_mask & IPA_FLT_MAC_DST_ADDR_L2TP)) {
		pr_err("dst_mac_addr:%pM ", attrib->dst_mac_addr);
	}

	if (attrib->attrib_mask & IPA_FLT_MAC_ETHER_TYPE)
		pr_err("ether_type:%x ", attrib->ether_type);

	if (attrib->attrib_mask & IPA_FLT_TCP_SYN)
		pr_err("tcp syn ");

	if (attrib->attrib_mask & IPA_FLT_TCP_SYN_L2TP)
		pr_err("tcp syn l2tp ");

	if (attrib->attrib_mask & IPA_FLT_L2TP_INNER_IP_TYPE)
		pr_err("l2tp inner ip type: %d ", attrib->type);

	if (attrib->attrib_mask & IPA_FLT_L2TP_INNER_IPV4_DST_ADDR) {
		addr[0] = htonl(attrib->u.v4.dst_addr);
		mask[0] = htonl(attrib->u.v4.dst_addr_mask);
		pr_err("dst_addr:%pI4 dst_addr_mask:%pI4 ", addr, mask);
	}

	pr_err("\n");
	return 0;
}

static int ipa3_attrib_dump_eq(struct ipa_ipfltri_rule_eq *attrib)
{
	uint8_t addr[16];
	uint8_t mask[16];
	int i;
	int j;

	if (attrib->tos_eq_present)
		pr_err("tos_value:%d ", attrib->tos_eq);

	if (attrib->protocol_eq_present)
		pr_err("protocol:%d ", attrib->protocol_eq);

	if (attrib->tc_eq_present)
		pr_err("tc:%d ", attrib->tc_eq);

	if (attrib->num_offset_meq_128 > IPA_IPFLTR_NUM_MEQ_128_EQNS) {
		IPAERR_RL("num_offset_meq_128  Max %d passed value %d\n",
		IPA_IPFLTR_NUM_MEQ_128_EQNS, attrib->num_offset_meq_128);
		return -EPERM;
	}

	for (i = 0; i < attrib->num_offset_meq_128; i++) {
		for (j = 0; j < 16; j++) {
			addr[j] = attrib->offset_meq_128[i].value[j];
			mask[j] = attrib->offset_meq_128[i].mask[j];
		}
		pr_err(
			"(ofst_meq128: ofst:%d mask:%pI6 val:%pI6) ",
			attrib->offset_meq_128[i].offset,
			mask, addr);
	}

	if (attrib->num_offset_meq_32 > IPA_IPFLTR_NUM_MEQ_32_EQNS) {
		IPAERR_RL("num_offset_meq_32  Max %d passed value %d\n",
		IPA_IPFLTR_NUM_MEQ_32_EQNS, attrib->num_offset_meq_32);
		return -EPERM;
	}

	for (i = 0; i < attrib->num_offset_meq_32; i++)
		pr_err(
			   "(ofst_meq32: ofst:%u mask:0x%x val:0x%x) ",
			   attrib->offset_meq_32[i].offset,
			   attrib->offset_meq_32[i].mask,
			   attrib->offset_meq_32[i].value);

	if (attrib->num_ihl_offset_meq_32 > IPA_IPFLTR_NUM_IHL_MEQ_32_EQNS) {
		IPAERR_RL("num_ihl_offset_meq_32  Max %d passed value %d\n",
		IPA_IPFLTR_NUM_IHL_MEQ_32_EQNS, attrib->num_ihl_offset_meq_32);
		return -EPERM;
	}

	for (i = 0; i < attrib->num_ihl_offset_meq_32; i++)
		pr_err(
			"(ihl_ofst_meq32: ofts:%d mask:0x%x val:0x%x) ",
			attrib->ihl_offset_meq_32[i].offset,
			attrib->ihl_offset_meq_32[i].mask,
			attrib->ihl_offset_meq_32[i].value);

	if (attrib->metadata_meq32_present)
		pr_err(
			"(metadata: ofst:%u mask:0x%x val:0x%x) ",
			attrib->metadata_meq32.offset,
			attrib->metadata_meq32.mask,
			attrib->metadata_meq32.value);

	if (attrib->num_ihl_offset_range_16 >
			IPA_IPFLTR_NUM_IHL_RANGE_16_EQNS) {
		IPAERR_RL("num_ihl_offset_range_16  Max %d passed value %d\n",
			IPA_IPFLTR_NUM_IHL_RANGE_16_EQNS,
			attrib->num_ihl_offset_range_16);
		return -EPERM;
	}

	for (i = 0; i < attrib->num_ihl_offset_range_16; i++)
		pr_err(
			   "(ihl_ofst_range16: ofst:%u lo:%u hi:%u) ",
			   attrib->ihl_offset_range_16[i].offset,
			   attrib->ihl_offset_range_16[i].range_low,
			   attrib->ihl_offset_range_16[i].range_high);

	if (attrib->ihl_offset_eq_32_present)
		pr_err(
			"(ihl_ofst_eq32:%d val:0x%x) ",
			attrib->ihl_offset_eq_32.offset,
			attrib->ihl_offset_eq_32.value);

	if (attrib->ihl_offset_eq_16_present)
		pr_err(
			"(ihl_ofst_eq16:%d val:0x%x) ",
			attrib->ihl_offset_eq_16.offset,
			attrib->ihl_offset_eq_16.value);

	if (attrib->fl_eq_present)
		pr_err("flow_label:%d ", attrib->fl_eq);

	if (attrib->ipv4_frag_eq_present)
		pr_err("frag ");

	pr_err("\n");
	return 0;
}

static int ipa3_open_dbg(struct inode *inode, struct file *file)
{
	file->private_data = inode->i_private;
	return 0;
}

static ssize_t ipa3_read_rt(struct file *file, char __user *ubuf, size_t count,
		loff_t *ppos)
{
	int i = 0;
	struct ipa3_rt_tbl *tbl;
	struct ipa3_rt_entry *entry;
	struct ipa3_rt_tbl_set *set;
	enum ipa_ip_type ip = (enum ipa_ip_type)file->private_data;
	u32 ofst;
	u32 ofst_words;

	set = &ipa3_ctx->rt_tbl_set[ip];

	mutex_lock(&ipa3_ctx->lock);

	if (ip ==  IPA_IP_v6) {
		if (ipa3_ctx->ip6_rt_tbl_hash_lcl)
			pr_err("Hashable table resides on local memory\n");
		else
			pr_err("Hashable table resides on system (ddr) memory\n");
		if (ipa3_ctx->ip6_rt_tbl_nhash_lcl)
			pr_err("Non-Hashable table resides on local memory\n");
		else
			pr_err("Non-Hashable table resides on system (ddr) memory\n");
	} else if (ip == IPA_IP_v4) {
		if (ipa3_ctx->ip4_rt_tbl_hash_lcl)
			pr_err("Hashable table resides on local memory\n");
		else
			pr_err("Hashable table resides on system (ddr) memory\n");
		if (ipa3_ctx->ip4_rt_tbl_nhash_lcl)
			pr_err("Non-Hashable table resides on local memory\n");
		else
			pr_err("Non-Hashable table resides on system (ddr) memory\n");
	}

	list_for_each_entry(tbl, &set->head_rt_tbl_list, link) {
		i = 0;
		list_for_each_entry(entry, &tbl->head_rt_rule_list, link) {
			if (entry->proc_ctx) {
				ofst = entry->proc_ctx->offset_entry->offset;
				ofst_words =
					(ofst +
					ipa3_ctx->hdr_proc_ctx_tbl.start_offset)
					>> 5;

				pr_err("tbl_idx:%d tbl_name:%s tbl_ref:%u ",
					entry->tbl->idx, entry->tbl->name,
					entry->tbl->ref_cnt);
				pr_err("rule_idx:%d dst:%d ep:%d S:%u ",
					i, entry->rule.dst,
					ipa3_get_ep_mapping(entry->rule.dst),
					!ipa3_ctx->hdr_proc_ctx_tbl_lcl);
				pr_err("proc_ctx[32B]:%u attrib_mask:%08x ",
					ofst_words,
					entry->rule.attrib.attrib_mask);
				pr_err("rule_id:%u max_prio:%u prio:%u ",
					entry->rule_id, entry->rule.max_prio,
					entry->prio);
				pr_err("hashable:%u retain_hdr:%u ",
					entry->rule.hashable,
					entry->rule.retain_hdr);
			} else {
				if (entry->hdr)
					ofst = entry->hdr->offset_entry->offset;
				else
					ofst = 0;

				pr_err("tbl_idx:%d tbl_name:%s tbl_ref:%u ",
					entry->tbl->idx, entry->tbl->name,
					entry->tbl->ref_cnt);
				pr_err("rule_idx:%d dst:%d ep:%d S:%u ",
					i, entry->rule.dst,
					ipa3_get_ep_mapping(entry->rule.dst),
					!ipa3_ctx->hdr_tbl_lcl);
				pr_err("hdr_ofst[words]:%u attrib_mask:%08x ",
					ofst >> 2,
					entry->rule.attrib.attrib_mask);
				pr_err("rule_id:%u max_prio:%u prio:%u ",
					entry->rule_id, entry->rule.max_prio,
					entry->prio);
				pr_err("hashable:%u retain_hdr:%u ",
					entry->rule.hashable,
					entry->rule.retain_hdr);
			}

			ipa3_attrib_dump(&entry->rule.attrib, ip);
			i++;
		}
	}
	mutex_unlock(&ipa3_ctx->lock);

	return 0;
}

static ssize_t ipa3_read_rt_hw(struct file *file, char __user *ubuf,
	size_t count, loff_t *ppos)
{
	enum ipa_ip_type ip = (enum ipa_ip_type)file->private_data;
	int tbls_num;
	int rules_num;
	int tbl;
	int rl;
	int res = 0;
	struct ipahal_rt_rule_entry *rules = NULL;

	switch (ip) {
	case IPA_IP_v4:
		tbls_num = IPA_MEM_PART(v4_rt_num_index);
		break;
	case IPA_IP_v6:
		tbls_num = IPA_MEM_PART(v6_rt_num_index);
		break;
	default:
		IPAERR("ip type error %d\n", ip);
		return -EINVAL;
	};

	IPADBG("Tring to parse %d H/W routing tables - IP=%d\n", tbls_num, ip);

	rules = kzalloc(sizeof(*rules) * IPA_DBG_MAX_RULE_IN_TBL, GFP_KERNEL);
	if (!rules) {
		IPAERR("failed to allocate mem for tbl rules\n");
		return -ENOMEM;
	}

	IPA_ACTIVE_CLIENTS_INC_SIMPLE();
	mutex_lock(&ipa3_ctx->lock);

	for (tbl = 0 ; tbl < tbls_num ; tbl++) {
		pr_err("=== Routing Table %d = Hashable Rules ===\n", tbl);
		rules_num = IPA_DBG_MAX_RULE_IN_TBL;
		res = ipa3_rt_read_tbl_from_hw(tbl, ip, true, rules,
			&rules_num);
		if (res) {
			pr_err("ERROR - Check the logs\n");
			IPAERR("failed reading tbl from hw\n");
			goto bail;
		}
		if (!rules_num)
			pr_err("-->No rules. Empty tbl or modem system table\n");

		for (rl = 0 ; rl < rules_num ; rl++) {
			pr_err("rule_idx:%d dst ep:%d L:%u ",
				rl, rules[rl].dst_pipe_idx, rules[rl].hdr_lcl);

			if (rules[rl].hdr_type == IPAHAL_RT_RULE_HDR_PROC_CTX)
				pr_err("proc_ctx:%u attrib_mask:%08x ",
					rules[rl].hdr_ofst,
					rules[rl].eq_attrib.rule_eq_bitmap);
			else
				pr_err("hdr_ofst:%u attrib_mask:%08x ",
					rules[rl].hdr_ofst,
					rules[rl].eq_attrib.rule_eq_bitmap);

			pr_err("rule_id:%u prio:%u retain_hdr:%u ",
				rules[rl].id, rules[rl].priority,
				rules[rl].retain_hdr);
			res = ipa3_attrib_dump_eq(&rules[rl].eq_attrib);
			if (res) {
				IPAERR_RL("failed read attrib eq\n");
				goto bail;
			}
		}

		pr_err("=== Routing Table %d = Non-Hashable Rules ===\n", tbl);
		rules_num = IPA_DBG_MAX_RULE_IN_TBL;
		res = ipa3_rt_read_tbl_from_hw(tbl, ip, false, rules,
			&rules_num);
		if (res) {
			pr_err("ERROR - Check the logs\n");
			IPAERR("failed reading tbl from hw\n");
			goto bail;
		}
		if (!rules_num)
			pr_err("-->No rules. Empty tbl or modem system table\n");

		for (rl = 0 ; rl < rules_num ; rl++) {
			pr_err("rule_idx:%d dst ep:%d L:%u ",
				rl, rules[rl].dst_pipe_idx, rules[rl].hdr_lcl);

			if (rules[rl].hdr_type == IPAHAL_RT_RULE_HDR_PROC_CTX)
				pr_err("proc_ctx:%u attrib_mask:%08x ",
					rules[rl].hdr_ofst,
					rules[rl].eq_attrib.rule_eq_bitmap);
			else
				pr_err("hdr_ofst:%u attrib_mask:%08x ",
					rules[rl].hdr_ofst,
					rules[rl].eq_attrib.rule_eq_bitmap);

			pr_err("rule_id:%u prio:%u retain_hdr:%u\n",
				rules[rl].id, rules[rl].priority,
				rules[rl].retain_hdr);
			res = ipa3_attrib_dump_eq(&rules[rl].eq_attrib);
			if (res) {
				IPAERR_RL("failed read attrib eq\n");
				goto bail;
			}
		}
		pr_err("\n");
	}

bail:
	mutex_unlock(&ipa3_ctx->lock);
	IPA_ACTIVE_CLIENTS_DEC_SIMPLE();
	kfree(rules);
	return res;
}

static ssize_t ipa3_read_proc_ctx(struct file *file, char __user *ubuf,
		size_t count, loff_t *ppos)
{
	int nbytes = 0;
	struct ipa3_hdr_proc_ctx_tbl *tbl;
	struct ipa3_hdr_proc_ctx_entry *entry;
	u32 ofst_words;

	tbl = &ipa3_ctx->hdr_proc_ctx_tbl;

	mutex_lock(&ipa3_ctx->lock);

	if (ipa3_ctx->hdr_proc_ctx_tbl_lcl)
		pr_info("Table resides on local memory\n");
	else
		pr_info("Table resides on system(ddr) memory\n");

	list_for_each_entry(entry, &tbl->head_proc_ctx_entry_list, link) {
		ofst_words = (entry->offset_entry->offset +
			ipa3_ctx->hdr_proc_ctx_tbl.start_offset)
			>> 5;
		if (entry->hdr->is_hdr_proc_ctx) {
			nbytes += scnprintf(dbg_buff + nbytes,
				IPA_MAX_MSG_LEN - nbytes,
				"id:%u hdr_proc_type:%s proc_ctx[32B]:%u ",
				entry->id,
				ipa3_hdr_proc_type_name[entry->type],
				ofst_words);
			nbytes += scnprintf(dbg_buff + nbytes,
				IPA_MAX_MSG_LEN - nbytes,
				"hdr_phys_base:0x%pa\n",
				&entry->hdr->phys_base);
		} else {
			nbytes += scnprintf(dbg_buff + nbytes,
				IPA_MAX_MSG_LEN - nbytes,
				"id:%u hdr_proc_type:%s proc_ctx[32B]:%u ",
				entry->id,
				ipa3_hdr_proc_type_name[entry->type],
				ofst_words);
			nbytes += scnprintf(dbg_buff + nbytes,
				IPA_MAX_MSG_LEN - nbytes,
				"hdr[words]:%u\n",
				entry->hdr->offset_entry->offset >> 2);
		}
	}
	mutex_unlock(&ipa3_ctx->lock);

	return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, nbytes);
}

static ssize_t ipa3_read_flt(struct file *file, char __user *ubuf, size_t count,
		loff_t *ppos)
{
	int i;
	int j;
	struct ipa3_flt_tbl *tbl;
	struct ipa3_flt_entry *entry;
	enum ipa_ip_type ip = (enum ipa_ip_type)file->private_data;
	struct ipa3_rt_tbl *rt_tbl;
	u32 rt_tbl_idx;
	u32 bitmap;
	bool eq;
	int res = 0;

	mutex_lock(&ipa3_ctx->lock);

	for (j = 0; j < ipa3_ctx->ipa_num_pipes; j++) {
		if (!ipa_is_ep_support_flt(j))
			continue;
		tbl = &ipa3_ctx->flt_tbl[j][ip];
		i = 0;
		list_for_each_entry(entry, &tbl->head_flt_rule_list, link) {
			if (entry->cookie != IPA_FLT_COOKIE)
				continue;
			if (entry->rule.eq_attrib_type) {
				rt_tbl_idx = entry->rule.rt_tbl_idx;
				bitmap = entry->rule.eq_attrib.rule_eq_bitmap;
				eq = true;
			} else {
				rt_tbl = ipa3_id_find(entry->rule.rt_tbl_hdl);
				if (rt_tbl == NULL ||
					rt_tbl->cookie != IPA_RT_TBL_COOKIE)
					rt_tbl_idx =  ~0;
				else
					rt_tbl_idx = rt_tbl->idx;
				bitmap = entry->rule.attrib.attrib_mask;
				eq = false;
			}
			pr_err("ep_idx:%d rule_idx:%d act:%d rt_tbl_idx:%d ",
				j, i, entry->rule.action, rt_tbl_idx);
			pr_err("attrib_mask:%08x retain_hdr:%d eq:%d ",
				bitmap, entry->rule.retain_hdr, eq);
			pr_err("hashable:%u rule_id:%u max_prio:%u prio:%u ",
				entry->rule.hashable, entry->rule_id,
				entry->rule.max_prio, entry->prio);
			if (ipa3_ctx->ipa_hw_type >= IPA_HW_v4_0)
				pr_err("pdn index %d, set metadata %d ",
					entry->rule.pdn_idx,
					entry->rule.set_metadata);
			if (eq) {
				res = ipa3_attrib_dump_eq(
						&entry->rule.eq_attrib);
				if (res) {
					IPAERR_RL("failed read attrib eq\n");
					goto bail;
				}
			} else
				ipa3_attrib_dump(
					&entry->rule.attrib, ip);
			i++;
		}
	}
bail:
	mutex_unlock(&ipa3_ctx->lock);

	return res;
}

static ssize_t ipa3_read_flt_hw(struct file *file, char __user *ubuf,
	size_t count, loff_t *ppos)
{
	int pipe;
	int rl;
	int rules_num;
	struct ipahal_flt_rule_entry *rules;
	enum ipa_ip_type ip = (enum ipa_ip_type)file->private_data;
	u32 rt_tbl_idx;
	u32 bitmap;
	int res = 0;

	IPADBG("Tring to parse %d H/W filtering tables - IP=%d\n",
		ipa3_ctx->ep_flt_num, ip);

	rules = kzalloc(sizeof(*rules) * IPA_DBG_MAX_RULE_IN_TBL, GFP_KERNEL);
	if (!rules) {
		IPAERR("failed to allocate mem for tbl rules\n");
		return -ENOMEM;
	}

	IPA_ACTIVE_CLIENTS_INC_SIMPLE();
	mutex_lock(&ipa3_ctx->lock);
	for (pipe = 0; pipe < ipa3_ctx->ipa_num_pipes; pipe++) {
		if (!ipa_is_ep_support_flt(pipe))
			continue;
		pr_err("=== Filtering Table ep:%d = Hashable Rules ===\n",
			pipe);
		rules_num = IPA_DBG_MAX_RULE_IN_TBL;
		res = ipa3_flt_read_tbl_from_hw(pipe, ip, true, rules,
			&rules_num);
		if (res) {
			pr_err("ERROR - Check the logs\n");
			IPAERR("failed reading tbl from hw\n");
			goto bail;
		}
		if (!rules_num)
			pr_err("-->No rules. Empty tbl or modem sys table\n");

		for (rl = 0; rl < rules_num; rl++) {
			rt_tbl_idx = rules[rl].rule.rt_tbl_idx;
			bitmap = rules[rl].rule.eq_attrib.rule_eq_bitmap;
			pr_err("ep_idx:%d rule_idx:%d act:%d rt_tbl_idx:%d ",
				pipe, rl, rules[rl].rule.action, rt_tbl_idx);
			pr_err("attrib_mask:%08x retain_hdr:%d ",
				bitmap, rules[rl].rule.retain_hdr);
			pr_err("rule_id:%u prio:%u ",
				rules[rl].id, rules[rl].priority);
			if (ipa3_ctx->ipa_hw_type >= IPA_HW_v4_0)
				pr_err("pdn: %u, set_metadata: %u ",
					rules[rl].rule.pdn_idx,
					rules[rl].rule.set_metadata);
			res = ipa3_attrib_dump_eq(&rules[rl].rule.eq_attrib);
			if (res) {
				IPAERR_RL("failed read attrib eq\n");
				goto bail;
			}
		}

		pr_err("=== Filtering Table ep:%d = Non-Hashable Rules ===\n",
			pipe);
		rules_num = IPA_DBG_MAX_RULE_IN_TBL;
		res = ipa3_flt_read_tbl_from_hw(pipe, ip, false, rules,
			&rules_num);
		if (res) {
			pr_err("ERROR - Check the logs\n");
			IPAERR("failed reading tbl from hw\n");
			goto bail;
		}
		if (!rules_num)
			pr_err("-->No rules. Empty tbl or modem sys table\n");
		for (rl = 0; rl < rules_num; rl++) {
			rt_tbl_idx = rules[rl].rule.rt_tbl_idx;
			bitmap = rules[rl].rule.eq_attrib.rule_eq_bitmap;
			pr_err("ep_idx:%d rule_idx:%d act:%d rt_tbl_idx:%d ",
				pipe, rl, rules[rl].rule.action, rt_tbl_idx);
			pr_err("attrib_mask:%08x retain_hdr:%d ",
				bitmap, rules[rl].rule.retain_hdr);
			pr_err("rule_id:%u  prio:%u ",
				rules[rl].id, rules[rl].priority);
			if (ipa3_ctx->ipa_hw_type >= IPA_HW_v4_0)
				pr_err("pdn: %u, set_metadata: %u ",
					rules[rl].rule.pdn_idx,
					rules[rl].rule.set_metadata);
			res = ipa3_attrib_dump_eq(&rules[rl].rule.eq_attrib);
			if (res) {
				IPAERR_RL("failed read attrib eq\n");
				goto bail;
			}
		}
		pr_err("\n");
	}

bail:
	mutex_unlock(&ipa3_ctx->lock);
	kfree(rules);
	IPA_ACTIVE_CLIENTS_DEC_SIMPLE();
	return res;
}

static ssize_t ipa3_read_stats(struct file *file, char __user *ubuf,
		size_t count, loff_t *ppos)
{
	int nbytes;
	int i;
	int cnt = 0;
	uint connect = 0;

	for (i = 0; i < ipa3_ctx->ipa_num_pipes; i++)
		connect |= (ipa3_ctx->ep[i].valid << i);

	nbytes = scnprintf(dbg_buff, IPA_MAX_MSG_LEN,
		"sw_tx=%u\n"
		"hw_tx=%u\n"
		"tx_non_linear=%u\n"
		"tx_compl=%u\n"
		"wan_rx=%u\n"
		"stat_compl=%u\n"
		"lan_aggr_close=%u\n"
		"wan_aggr_close=%u\n"
		"act_clnt=%u\n"
		"con_clnt_bmap=0x%x\n"
		"wan_rx_empty=%u\n"
		"wan_repl_rx_empty=%u\n"
		"lan_rx_empty=%u\n"
		"lan_repl_rx_empty=%u\n"
		"flow_enable=%u\n"
		"flow_disable=%u\n",
		ipa3_ctx->stats.tx_sw_pkts,
		ipa3_ctx->stats.tx_hw_pkts,
		ipa3_ctx->stats.tx_non_linear,
		ipa3_ctx->stats.tx_pkts_compl,
		ipa3_ctx->stats.rx_pkts,
		ipa3_ctx->stats.stat_compl,
		ipa3_ctx->stats.aggr_close,
		ipa3_ctx->stats.wan_aggr_close,
		atomic_read(&ipa3_ctx->ipa3_active_clients.cnt),
		connect,
		ipa3_ctx->stats.wan_rx_empty,
		ipa3_ctx->stats.wan_repl_rx_empty,
		ipa3_ctx->stats.lan_rx_empty,
		ipa3_ctx->stats.lan_repl_rx_empty,
		ipa3_ctx->stats.flow_enable,
		ipa3_ctx->stats.flow_disable);
	cnt += nbytes;

	for (i = 0; i < IPAHAL_PKT_STATUS_EXCEPTION_MAX; i++) {
		nbytes = scnprintf(dbg_buff + cnt,
			IPA_MAX_MSG_LEN - cnt,
			"lan_rx_excp[%u:%20s]=%u\n", i,
			ipahal_pkt_status_exception_str(i),
			ipa3_ctx->stats.rx_excp_pkts[i]);
		cnt += nbytes;
	}

	return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, cnt);
}

static ssize_t ipa3_read_wstats(struct file *file, char __user *ubuf,
		size_t count, loff_t *ppos)
{

#define HEAD_FRMT_STR "%25s\n"
#define FRMT_STR "%25s %10u\n"
#define FRMT_STR1 "%25s %10u\n\n"

	int cnt = 0;
	int nbytes;
	int ipa_ep_idx;
	enum ipa_client_type client = IPA_CLIENT_WLAN1_PROD;
	struct ipa3_ep_context *ep;

	do {
		nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
			HEAD_FRMT_STR, "Client IPA_CLIENT_WLAN1_PROD Stats:");
		cnt += nbytes;

		ipa_ep_idx = ipa3_get_ep_mapping(client);
		if (ipa_ep_idx == -1) {
			nbytes = scnprintf(dbg_buff + cnt,
				IPA_MAX_MSG_LEN - cnt, HEAD_FRMT_STR, "Not up");
			cnt += nbytes;
			break;
		}

		ep = &ipa3_ctx->ep[ipa_ep_idx];
		if (ep->valid != 1) {
			nbytes = scnprintf(dbg_buff + cnt,
				IPA_MAX_MSG_LEN - cnt, HEAD_FRMT_STR, "Not up");
			cnt += nbytes;
			break;
		}

		nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
			FRMT_STR, "Avail Fifo Desc:",
			atomic_read(&ep->avail_fifo_desc));
		cnt += nbytes;

		nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
			FRMT_STR, "Rx Pkts Rcvd:", ep->wstats.rx_pkts_rcvd);
		cnt += nbytes;

		nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
			FRMT_STR, "Rx Pkts Status Rcvd:",
			ep->wstats.rx_pkts_status_rcvd);
		cnt += nbytes;

		nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
			FRMT_STR, "Rx DH Rcvd:", ep->wstats.rx_hd_rcvd);
		cnt += nbytes;

		nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
			FRMT_STR, "Rx DH Processed:",
			ep->wstats.rx_hd_processed);
		cnt += nbytes;

		nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
			FRMT_STR, "Rx DH Sent Back:", ep->wstats.rx_hd_reply);
		cnt += nbytes;

		nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
			FRMT_STR, "Rx Pkt Leak:", ep->wstats.rx_pkt_leak);
		cnt += nbytes;

		nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
			FRMT_STR1, "Rx DP Fail:", ep->wstats.rx_dp_fail);
		cnt += nbytes;

	} while (0);

	client = IPA_CLIENT_WLAN1_CONS;
	nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt, HEAD_FRMT_STR,
		"Client IPA_CLIENT_WLAN1_CONS Stats:");
	cnt += nbytes;
	while (1) {
		ipa_ep_idx = ipa3_get_ep_mapping(client);
		if (ipa_ep_idx == -1) {
			nbytes = scnprintf(dbg_buff + cnt,
				IPA_MAX_MSG_LEN - cnt, HEAD_FRMT_STR, "Not up");
			cnt += nbytes;
			goto nxt_clnt_cons;
		}

		ep = &ipa3_ctx->ep[ipa_ep_idx];
		if (ep->valid != 1) {
			nbytes = scnprintf(dbg_buff + cnt,
				IPA_MAX_MSG_LEN - cnt, HEAD_FRMT_STR, "Not up");
			cnt += nbytes;
			goto nxt_clnt_cons;
		}

		nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
			FRMT_STR, "Tx Pkts Received:", ep->wstats.tx_pkts_rcvd);
		cnt += nbytes;

		nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
			FRMT_STR, "Tx Pkts Sent:", ep->wstats.tx_pkts_sent);
		cnt += nbytes;

		nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
			FRMT_STR1, "Tx Pkts Dropped:",
			ep->wstats.tx_pkts_dropped);
		cnt += nbytes;

nxt_clnt_cons:
			switch (client) {
			case IPA_CLIENT_WLAN1_CONS:
				client = IPA_CLIENT_WLAN2_CONS;
				nbytes = scnprintf(dbg_buff + cnt,
					IPA_MAX_MSG_LEN - cnt, HEAD_FRMT_STR,
					"Client IPA_CLIENT_WLAN2_CONS Stats:");
				cnt += nbytes;
				continue;
			case IPA_CLIENT_WLAN2_CONS:
				client = IPA_CLIENT_WLAN3_CONS;
				nbytes = scnprintf(dbg_buff + cnt,
					IPA_MAX_MSG_LEN - cnt, HEAD_FRMT_STR,
					"Client IPA_CLIENT_WLAN3_CONS Stats:");
				cnt += nbytes;
				continue;
			case IPA_CLIENT_WLAN3_CONS:
				client = IPA_CLIENT_WLAN4_CONS;
				nbytes = scnprintf(dbg_buff + cnt,
					IPA_MAX_MSG_LEN - cnt, HEAD_FRMT_STR,
					"Client IPA_CLIENT_WLAN4_CONS Stats:");
				cnt += nbytes;
				continue;
			case IPA_CLIENT_WLAN4_CONS:
			default:
				break;
			}
		break;
	}

	nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
		"\n"HEAD_FRMT_STR, "All Wlan Consumer pipes stats:");
	cnt += nbytes;

	nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt, FRMT_STR,
		"Tx Comm Buff Allocated:",
		ipa3_ctx->wc_memb.wlan_comm_total_cnt);
	cnt += nbytes;

	nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt, FRMT_STR,
		"Tx Comm Buff Avail:", ipa3_ctx->wc_memb.wlan_comm_free_cnt);
	cnt += nbytes;

	nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt, FRMT_STR1,
		"Total Tx Pkts Freed:", ipa3_ctx->wc_memb.total_tx_pkts_freed);
	cnt += nbytes;

	return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, cnt);
}

static ssize_t ipa3_read_ntn(struct file *file, char __user *ubuf,
		size_t count, loff_t *ppos)
{
#define TX_STATS(y) \
	ipa3_ctx->uc_ntn_ctx.ntn_uc_stats_mmio->tx_ch_stats[0].y
#define RX_STATS(y) \
	ipa3_ctx->uc_ntn_ctx.ntn_uc_stats_mmio->rx_ch_stats[0].y

	struct Ipa3HwStatsNTNInfoData_t stats;
	int nbytes;
	int cnt = 0;

	if (!ipa3_get_ntn_stats(&stats)) {
		nbytes = scnprintf(dbg_buff, IPA_MAX_MSG_LEN,
			"TX num_pkts_processed=%u\n"
			"TX ringFull=%u\n"
			"TX ringEmpty=%u\n"
			"TX ringUsageHigh=%u\n"
			"TX ringUsageLow=%u\n"
			"TX RingUtilCount=%u\n"
			"TX bamFifoFull=%u\n"
			"TX bamFifoEmpty=%u\n"
			"TX bamFifoUsageHigh=%u\n"
			"TX bamFifoUsageLow=%u\n"
			"TX bamUtilCount=%u\n"
			"TX num_db=%u\n"
			"TX num_qmb_int_handled=%u\n"
			"TX ipa_pipe_number=%u\n",
			TX_STATS(num_pkts_processed),
			TX_STATS(ring_stats.ringFull),
			TX_STATS(ring_stats.ringEmpty),
			TX_STATS(ring_stats.ringUsageHigh),
			TX_STATS(ring_stats.ringUsageLow),
			TX_STATS(ring_stats.RingUtilCount),
			TX_STATS(gsi_stats.bamFifoFull),
			TX_STATS(gsi_stats.bamFifoEmpty),
			TX_STATS(gsi_stats.bamFifoUsageHigh),
			TX_STATS(gsi_stats.bamFifoUsageLow),
			TX_STATS(gsi_stats.bamUtilCount),
			TX_STATS(num_db),
			TX_STATS(num_qmb_int_handled),
			TX_STATS(ipa_pipe_number));
		cnt += nbytes;
		nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
			"RX num_pkts_processed=%u\n"
			"RX ringFull=%u\n"
			"RX ringEmpty=%u\n"
			"RX ringUsageHigh=%u\n"
			"RX ringUsageLow=%u\n"
			"RX RingUtilCount=%u\n"
			"RX bamFifoFull=%u\n"
			"RX bamFifoEmpty=%u\n"
			"RX bamFifoUsageHigh=%u\n"
			"RX bamFifoUsageLow=%u\n"
			"RX bamUtilCount=%u\n"
			"RX num_db=%u\n"
			"RX num_qmb_int_handled=%u\n"
			"RX ipa_pipe_number=%u\n",
			RX_STATS(num_pkts_processed),
			RX_STATS(ring_stats.ringFull),
			RX_STATS(ring_stats.ringEmpty),
			RX_STATS(ring_stats.ringUsageHigh),
			RX_STATS(ring_stats.ringUsageLow),
			RX_STATS(ring_stats.RingUtilCount),
			RX_STATS(gsi_stats.bamFifoFull),
			RX_STATS(gsi_stats.bamFifoEmpty),
			RX_STATS(gsi_stats.bamFifoUsageHigh),
			RX_STATS(gsi_stats.bamFifoUsageLow),
			RX_STATS(gsi_stats.bamUtilCount),
			RX_STATS(num_db),
			RX_STATS(num_qmb_int_handled),
			RX_STATS(ipa_pipe_number));
		cnt += nbytes;
	} else {
		nbytes = scnprintf(dbg_buff, IPA_MAX_MSG_LEN,
				"Fail to read NTN stats\n");
		cnt += nbytes;
	}

	return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, cnt);
}

static ssize_t ipa3_read_wdi(struct file *file, char __user *ubuf,
		size_t count, loff_t *ppos)
{
	struct IpaHwStatsWDIInfoData_t stats;
	int nbytes;
	int cnt = 0;

	if (!ipa3_get_wdi_stats(&stats)) {
		nbytes = scnprintf(dbg_buff, IPA_MAX_MSG_LEN,
			"TX num_pkts_processed=%u\n"
			"TX copy_engine_doorbell_value=%u\n"
			"TX num_db_fired=%u\n"
			"TX ringFull=%u\n"
			"TX ringEmpty=%u\n"
			"TX ringUsageHigh=%u\n"
			"TX ringUsageLow=%u\n"
			"TX RingUtilCount=%u\n"
			"TX bamFifoFull=%u\n"
			"TX bamFifoEmpty=%u\n"
			"TX bamFifoUsageHigh=%u\n"
			"TX bamFifoUsageLow=%u\n"
			"TX bamUtilCount=%u\n"
			"TX num_db=%u\n"
			"TX num_unexpected_db=%u\n"
			"TX num_bam_int_handled=%u\n"
			"TX num_bam_int_in_non_running_state=%u\n"
			"TX num_qmb_int_handled=%u\n"
			"TX num_bam_int_handled_while_wait_for_bam=%u\n",
			stats.tx_ch_stats.num_pkts_processed,
			stats.tx_ch_stats.copy_engine_doorbell_value,
			stats.tx_ch_stats.num_db_fired,
			stats.tx_ch_stats.tx_comp_ring_stats.ringFull,
			stats.tx_ch_stats.tx_comp_ring_stats.ringEmpty,
			stats.tx_ch_stats.tx_comp_ring_stats.ringUsageHigh,
			stats.tx_ch_stats.tx_comp_ring_stats.ringUsageLow,
			stats.tx_ch_stats.tx_comp_ring_stats.RingUtilCount,
			stats.tx_ch_stats.bam_stats.bamFifoFull,
			stats.tx_ch_stats.bam_stats.bamFifoEmpty,
			stats.tx_ch_stats.bam_stats.bamFifoUsageHigh,
			stats.tx_ch_stats.bam_stats.bamFifoUsageLow,
			stats.tx_ch_stats.bam_stats.bamUtilCount,
			stats.tx_ch_stats.num_db,
			stats.tx_ch_stats.num_unexpected_db,
			stats.tx_ch_stats.num_bam_int_handled,
			stats.tx_ch_stats.num_bam_int_in_non_running_state,
			stats.tx_ch_stats.num_qmb_int_handled,
			stats.tx_ch_stats.
				num_bam_int_handled_while_wait_for_bam);
		cnt += nbytes;
		nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
			"RX max_outstanding_pkts=%u\n"
			"RX num_pkts_processed=%u\n"
			"RX rx_ring_rp_value=%u\n"
			"RX ringFull=%u\n"
			"RX ringEmpty=%u\n"
			"RX ringUsageHigh=%u\n"
			"RX ringUsageLow=%u\n"
			"RX RingUtilCount=%u\n"
			"RX bamFifoFull=%u\n"
			"RX bamFifoEmpty=%u\n"
			"RX bamFifoUsageHigh=%u\n"
			"RX bamFifoUsageLow=%u\n"
			"RX bamUtilCount=%u\n"
			"RX num_bam_int_handled=%u\n"
			"RX num_db=%u\n"
			"RX num_unexpected_db=%u\n"
			"RX num_pkts_in_dis_uninit_state=%u\n"
			"RX num_ic_inj_vdev_change=%u\n"
			"RX num_ic_inj_fw_desc_change=%u\n"
			"RX num_qmb_int_handled=%u\n"
			"RX reserved1=%u\n"
			"RX reserved2=%u\n",
			stats.rx_ch_stats.max_outstanding_pkts,
			stats.rx_ch_stats.num_pkts_processed,
			stats.rx_ch_stats.rx_ring_rp_value,
			stats.rx_ch_stats.rx_ind_ring_stats.ringFull,
			stats.rx_ch_stats.rx_ind_ring_stats.ringEmpty,
			stats.rx_ch_stats.rx_ind_ring_stats.ringUsageHigh,
			stats.rx_ch_stats.rx_ind_ring_stats.ringUsageLow,
			stats.rx_ch_stats.rx_ind_ring_stats.RingUtilCount,
			stats.rx_ch_stats.bam_stats.bamFifoFull,
			stats.rx_ch_stats.bam_stats.bamFifoEmpty,
			stats.rx_ch_stats.bam_stats.bamFifoUsageHigh,
			stats.rx_ch_stats.bam_stats.bamFifoUsageLow,
			stats.rx_ch_stats.bam_stats.bamUtilCount,
			stats.rx_ch_stats.num_bam_int_handled,
			stats.rx_ch_stats.num_db,
			stats.rx_ch_stats.num_unexpected_db,
			stats.rx_ch_stats.num_pkts_in_dis_uninit_state,
			stats.rx_ch_stats.num_ic_inj_vdev_change,
			stats.rx_ch_stats.num_ic_inj_fw_desc_change,
			stats.rx_ch_stats.num_qmb_int_handled,
			stats.rx_ch_stats.reserved1,
			stats.rx_ch_stats.reserved2);
		cnt += nbytes;
	} else {
		nbytes = scnprintf(dbg_buff, IPA_MAX_MSG_LEN,
				"Fail to read WDI stats\n");
		cnt += nbytes;
	}

	return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, cnt);
}

static ssize_t ipa3_write_dbg_cnt(struct file *file, const char __user *buf,
		size_t count, loff_t *ppos)
{
	unsigned long missing;
	u32 option = 0;
	struct ipahal_reg_debug_cnt_ctrl dbg_cnt_ctrl;

	if (ipa3_ctx->ipa_hw_type >= IPA_HW_v4_0) {
		IPAERR("IPA_DEBUG_CNT_CTRL is not supported in IPA 4.0\n");
		return -EPERM;
	}

	if (sizeof(dbg_buff) < count + 1)
		return -EFAULT;

	missing = copy_from_user(dbg_buff, buf, count);
	if (missing)
		return -EFAULT;

	dbg_buff[count] = '\0';
	if (kstrtou32(dbg_buff, 0, &option))
		return -EFAULT;

	memset(&dbg_cnt_ctrl, 0, sizeof(dbg_cnt_ctrl));
	dbg_cnt_ctrl.type = DBG_CNT_TYPE_GENERAL;
	dbg_cnt_ctrl.product = true;
	dbg_cnt_ctrl.src_pipe = 0xff;
	dbg_cnt_ctrl.rule_idx_pipe_rule = false;
	dbg_cnt_ctrl.rule_idx = 0;
	if (option == 1)
		dbg_cnt_ctrl.en = true;
	else
		dbg_cnt_ctrl.en = false;

	IPA_ACTIVE_CLIENTS_INC_SIMPLE();
	ipahal_write_reg_n_fields(IPA_DEBUG_CNT_CTRL_n, 0, &dbg_cnt_ctrl);
	IPA_ACTIVE_CLIENTS_DEC_SIMPLE();

	return count;
}

static ssize_t ipa3_read_dbg_cnt(struct file *file, char __user *ubuf,
		size_t count, loff_t *ppos)
{
	int nbytes;
	u32 regval;

	if (ipa3_ctx->ipa_hw_type >= IPA_HW_v4_0) {
		IPAERR("IPA_DEBUG_CNT_REG is not supported in IPA 4.0\n");
		return -EPERM;
	}

	IPA_ACTIVE_CLIENTS_INC_SIMPLE();
	regval =
		ipahal_read_reg_n(IPA_DEBUG_CNT_REG_n, 0);
	nbytes = scnprintf(dbg_buff, IPA_MAX_MSG_LEN,
			"IPA_DEBUG_CNT_REG_0=0x%x\n", regval);
	IPA_ACTIVE_CLIENTS_DEC_SIMPLE();

	return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, nbytes);
}

static ssize_t ipa3_read_msg(struct file *file, char __user *ubuf,
		size_t count, loff_t *ppos)
{
	int nbytes;
	int cnt = 0;
	int i;

	for (i = 0; i < IPA_EVENT_MAX_NUM; i++) {
		nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
				"msg[%u:%27s] W:%u R:%u\n", i,
				ipa3_event_name[i],
				ipa3_ctx->stats.msg_w[i],
				ipa3_ctx->stats.msg_r[i]);
		cnt += nbytes;
	}

	return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, cnt);
}

static void ipa3_read_table(
	char *table_addr, u32 table_size,
	u32 *total_num_entries,
	u32 *rule_id,
	enum ipahal_nat_type nat_type)
{
	int result;
	char *entry;
	size_t entry_size;
	bool entry_zeroed;
	bool entry_valid;
	u32 i, num_entries = 0, id = *rule_id;
	char *buff;
	size_t buff_size = 2 * IPA_MAX_ENTRY_STRING_LEN;

	IPADBG("\n");
	if (table_addr == NULL) {
		pr_err("NULL NAT table\n");
		return;
	}

	result = ipahal_nat_entry_size(nat_type, &entry_size);
	if (result) {
		IPAERR("Failed to retrieve size of %s entry\n",
			ipahal_nat_type_str(nat_type));
		return;
	}

	buff = kzalloc(buff_size, GFP_KERNEL);
	if (!buff) {
		IPAERR("Out of memory\n");
		return;
	}

	for (i = 0, entry = table_addr;
		i < table_size;
		++i, ++id, entry += entry_size) {
		result = ipahal_nat_is_entry_zeroed(nat_type, entry,
			&entry_zeroed);
		if (result) {
			IPAERR(
				"Failed to determine whether the %s entry is definitely zero\n"
					, ipahal_nat_type_str(nat_type));
			goto bail;
		}
		if (entry_zeroed)
			continue;

		result = ipahal_nat_is_entry_valid(nat_type, entry,
			&entry_valid);
		if (result) {
			IPAERR(
				"Failed to determine whether the %s entry is valid\n"
					, ipahal_nat_type_str(nat_type));
			goto bail;
		}

		if (entry_valid) {
			++num_entries;
			pr_err("\tEntry_Index=%d\n", id);
		} else
			pr_err("\tEntry_Index=%d - Invalid Entry\n", id);

		ipahal_nat_stringify_entry(nat_type, entry,
			buff, buff_size);
		pr_err("%s\n", buff);
		memset(buff, 0, buff_size);
	}

	if (num_entries)
		pr_err("\n");
	else
		pr_err("\tEmpty\n\n");
	IPADBG("return\n");
bail:
	kfree(buff);
	*rule_id = id;
	*total_num_entries += num_entries;
}

static void ipa3_start_read_memory_device(
	struct ipa3_nat_ipv6ct_common_mem *dev,
	enum ipahal_nat_type nat_type,
	u32 *num_entries)
{
	u32 rule_id = 0;

	IPADBG("\n");

	pr_err("%s_Table_Size=%d\n",
		dev->name, dev->table_entries + 1);

	pr_err("%s_Expansion_Table_Size=%d\n",
		dev->name, dev->expn_table_entries);

	if (!dev->is_sys_mem)
		pr_err("Not supported for local(shared) memory\n");

	pr_err("\n%s Base Table:\n", dev->name);
	ipa3_read_table(dev->base_table_addr, dev->table_entries + 1,
		num_entries, &rule_id, nat_type);

	pr_err("%s Expansion Table:\n", dev->name);
	ipa3_read_table(
		dev->expansion_table_addr, dev->expn_table_entries,
		num_entries,
		&rule_id,
		nat_type);

	IPADBG("return\n");
}

static void ipa3_finish_read_memory_device(
	struct ipa3_nat_ipv6ct_common_mem *dev,
	u32 num_entries)
{
	IPADBG("\n");
	pr_err("Overall number %s entries: %d\n\n", dev->name, num_entries);
	IPADBG("return\n");
}

static void ipa3_read_pdn_table(void)
{
	int i, result;
	char *pdn_entry;
	size_t pdn_entry_size;
	bool entry_zeroed;
	bool entry_valid;
	char *buff;
	size_t buff_size = 128;

	IPADBG("\n");

	result = ipahal_nat_entry_size(IPAHAL_NAT_IPV4_PDN, &pdn_entry_size);
	if (result) {
		IPAERR("Failed to retrieve size of PDN entry");
		return;
	}

	buff = kzalloc(buff_size, GFP_KERNEL);
	if (!buff) {
		IPAERR("Out of memory\n");
		return;
	}

	for (i = 0, pdn_entry = ipa3_ctx->nat_mem.pdn_mem.base;
		i < IPA_MAX_PDN_NUM;
		++i, pdn_entry += pdn_entry_size) {
		result = ipahal_nat_is_entry_zeroed(IPAHAL_NAT_IPV4_PDN,
			pdn_entry, &entry_zeroed);
		if (result) {
			IPAERR(
				"Failed to determine whether the PDN entry is definitely zero\n");
			goto bail;
		}
		if (entry_zeroed)
			continue;

		result = ipahal_nat_is_entry_valid(IPAHAL_NAT_IPV4_PDN,
			pdn_entry, &entry_valid);
		if (result) {
			IPAERR(
				"Failed to determine whether the PDN entry is valid\n");
			goto bail;
		}
		if (entry_valid)
			pr_err("PDN %d: ", i);
		else
			pr_err("PDN %d - Invalid: ", i);

		ipahal_nat_stringify_entry(IPAHAL_NAT_IPV4_PDN,
				pdn_entry, buff, buff_size);
		pr_err("%s\n", buff);
		memset(buff, 0, buff_size);
	}
	pr_err("\n");
bail:
	kfree(buff);
	IPADBG("return\n");
}

static ssize_t ipa3_read_nat4(struct file *file,
		char __user *ubuf, size_t count,
		loff_t *ppos)
{
	u32 rule_id = 0, num_entries = 0, index_num_entries = 0;

	pr_err("IPA3 NAT stats\n");
	if (!ipa3_ctx->nat_mem.dev.is_dev_init) {
		pr_err("NAT hasn't been initialized or not supported\n");
		goto ret;
	}

	mutex_lock(&ipa3_ctx->nat_mem.dev.lock);

	if (!ipa3_ctx->nat_mem.dev.is_hw_init) {
		pr_err("NAT H/W hasn't been initialized\n");
		goto bail;
	}

	if (ipa3_ctx->ipa_hw_type >= IPA_HW_v4_0) {
		ipa3_read_pdn_table();
	} else {
		pr_err("NAT Table IP Address=%pI4h\n\n",
			&ipa3_ctx->nat_mem.public_ip_addr);
	}

	ipa3_start_read_memory_device(&ipa3_ctx->nat_mem.dev,
		IPAHAL_NAT_IPV4, &num_entries);

	/* Print Index tables */
	pr_err("ipaNatTable Index Table:\n");
	ipa3_read_table(
		ipa3_ctx->nat_mem.index_table_addr,
		ipa3_ctx->nat_mem.dev.table_entries + 1,
		&index_num_entries,
		&rule_id,
		IPAHAL_NAT_IPV4_INDEX);

	pr_err("ipaNatTable Expansion Index Table:\n");
	ipa3_read_table(
		ipa3_ctx->nat_mem.index_table_expansion_addr,
		ipa3_ctx->nat_mem.dev.expn_table_entries,
		&index_num_entries,
		&rule_id,
		IPAHAL_NAT_IPV4_INDEX);

	if (num_entries != index_num_entries)
		IPAERR(
			"The NAT table number of entries %d is different from index table number of entries %d\n",
			num_entries, index_num_entries);

	ipa3_finish_read_memory_device(&ipa3_ctx->nat_mem.dev, num_entries);

	IPADBG("return\n");
bail:
	mutex_unlock(&ipa3_ctx->nat_mem.dev.lock);
ret:
	return 0;
}

static ssize_t ipa3_read_ipv6ct(struct file *file,
	char __user *ubuf, size_t count,
	loff_t *ppos) {
	u32 num_entries = 0;

	pr_err("\n");

	if (!ipa3_ctx->ipv6ct_mem.dev.is_dev_init) {
		pr_err("IPv6 Conntrack not initialized or not supported\n");
		return 0;
	}

	mutex_lock(&ipa3_ctx->ipv6ct_mem.dev.lock);

	if (!ipa3_ctx->ipv6ct_mem.dev.is_hw_init) {
		pr_err("IPv6 connection tracking H/W hasn't been initialized\n");
		goto bail;
	}

	ipa3_start_read_memory_device(&ipa3_ctx->ipv6ct_mem.dev,
		IPAHAL_NAT_IPV6CT, &num_entries);
	ipa3_finish_read_memory_device(&ipa3_ctx->ipv6ct_mem.dev,
		num_entries);

	IPADBG("return\n");
bail:
	mutex_unlock(&ipa3_ctx->ipv6ct_mem.dev.lock);
	return 0;
}

static ssize_t ipa3_rm_read_stats(struct file *file, char __user *ubuf,
		size_t count, loff_t *ppos)
{
	int result, cnt = 0;

	/* deprecate if IPA PM is used */
	if (ipa3_ctx->use_ipa_pm) {
		cnt += scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
			"IPA RM is disabled\n");
		goto ret;
	}

	result = ipa_rm_stat(dbg_buff, IPA_MAX_MSG_LEN);
	if (result < 0) {
		cnt += scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
				"Error in printing RM stat %d\n", result);
		goto ret;
	}
	cnt += result;
ret:
	return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, cnt);
}

static ssize_t ipa3_pm_read_stats(struct file *file, char __user *ubuf,
		size_t count, loff_t *ppos)
{
	int result, cnt = 0;

	if (!ipa3_ctx->use_ipa_pm) {
		cnt += scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
			"IPA PM is disabled\n");
		goto ret;
	}

	result = ipa_pm_stat(dbg_buff, IPA_MAX_MSG_LEN);
	if (result < 0) {
		cnt += scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
				"Error in printing PM stat %d\n", result);
		goto ret;
	}
	cnt += result;
ret:
	return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, cnt);
}

static ssize_t ipa3_pm_ex_read_stats(struct file *file, char __user *ubuf,
		size_t count, loff_t *ppos)
{
	int result, cnt = 0;

	if (!ipa3_ctx->use_ipa_pm) {
		cnt += scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
			"IPA PM is disabled\n");
		goto ret;
	}

	result = ipa_pm_exceptions_stat(dbg_buff, IPA_MAX_MSG_LEN);
	if (result < 0) {
		cnt += scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
				"Error in printing PM stat %d\n", result);
		goto ret;
	}
	cnt += result;
ret:
	return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, cnt);
}

static ssize_t ipa3_read_ipahal_regs(struct file *file, char __user *ubuf,
		size_t count, loff_t *ppos)
{
	IPA_ACTIVE_CLIENTS_INC_SIMPLE();
	ipahal_print_all_regs(true);
	IPA_ACTIVE_CLIENTS_DEC_SIMPLE();

	return 0;
}

static void ipa_dump_status(struct ipahal_pkt_status *status)
{
	IPA_DUMP_STATUS_FIELD(status_opcode);
	IPA_DUMP_STATUS_FIELD(exception);
	IPA_DUMP_STATUS_FIELD(status_mask);
	IPA_DUMP_STATUS_FIELD(pkt_len);
	IPA_DUMP_STATUS_FIELD(endp_src_idx);
	IPA_DUMP_STATUS_FIELD(endp_dest_idx);
	IPA_DUMP_STATUS_FIELD(metadata);
	IPA_DUMP_STATUS_FIELD(flt_local);
	IPA_DUMP_STATUS_FIELD(flt_hash);
	IPA_DUMP_STATUS_FIELD(flt_global);
	IPA_DUMP_STATUS_FIELD(flt_ret_hdr);
	IPA_DUMP_STATUS_FIELD(flt_miss);
	IPA_DUMP_STATUS_FIELD(flt_rule_id);
	IPA_DUMP_STATUS_FIELD(rt_local);
	IPA_DUMP_STATUS_FIELD(rt_hash);
	IPA_DUMP_STATUS_FIELD(ucp);
	IPA_DUMP_STATUS_FIELD(rt_tbl_idx);
	IPA_DUMP_STATUS_FIELD(rt_miss);
	IPA_DUMP_STATUS_FIELD(rt_rule_id);
	IPA_DUMP_STATUS_FIELD(nat_hit);
	IPA_DUMP_STATUS_FIELD(nat_entry_idx);
	IPA_DUMP_STATUS_FIELD(nat_type);
	pr_err("tag = 0x%llx\n", (u64)status->tag_info & 0xFFFFFFFFFFFF);
	IPA_DUMP_STATUS_FIELD(seq_num);
	IPA_DUMP_STATUS_FIELD(time_of_day_ctr);
	IPA_DUMP_STATUS_FIELD(hdr_local);
	IPA_DUMP_STATUS_FIELD(hdr_offset);
	IPA_DUMP_STATUS_FIELD(frag_hit);
	IPA_DUMP_STATUS_FIELD(frag_rule);
}

static ssize_t ipa_status_stats_read(struct file *file, char __user *ubuf,
		size_t count, loff_t *ppos)
{
	struct ipa3_status_stats *stats;
	int i, j;

	stats = kzalloc(sizeof(*stats), GFP_KERNEL);
	if (!stats)
		return -EFAULT;

	for (i = 0; i < ipa3_ctx->ipa_num_pipes; i++) {
		if (!ipa3_ctx->ep[i].sys || !ipa3_ctx->ep[i].sys->status_stat)
			continue;

		memcpy(stats, ipa3_ctx->ep[i].sys->status_stat, sizeof(*stats));
		pr_err("Statuses for pipe %d\n", i);
		for (j = 0; j < IPA_MAX_STATUS_STAT_NUM; j++) {
			pr_err("curr=%d\n", stats->curr);
			ipa_dump_status(&stats->status[stats->curr]);
			pr_err("\n\n\n");
			stats->curr = (stats->curr + 1) %
				IPA_MAX_STATUS_STAT_NUM;
		}
	}

	kfree(stats);
	return 0;
}

static ssize_t ipa3_print_active_clients_log(struct file *file,
		char __user *ubuf, size_t count, loff_t *ppos)
{
	int cnt;
	int table_size;

	if (active_clients_buf == NULL) {
		IPAERR("Active Clients buffer is not allocated");
		return 0;
	}
	memset(active_clients_buf, 0, IPA_DBG_ACTIVE_CLIENT_BUF_SIZE);
	mutex_lock(&ipa3_ctx->ipa3_active_clients.mutex);
	cnt = ipa3_active_clients_log_print_buffer(active_clients_buf,
			IPA_DBG_ACTIVE_CLIENT_BUF_SIZE - IPA_MAX_MSG_LEN);
	table_size = ipa3_active_clients_log_print_table(active_clients_buf
			+ cnt, IPA_MAX_MSG_LEN);
	mutex_unlock(&ipa3_ctx->ipa3_active_clients.mutex);

	return simple_read_from_buffer(ubuf, count, ppos,
			active_clients_buf, cnt + table_size);
}

static ssize_t ipa3_clear_active_clients_log(struct file *file,
		const char __user *ubuf, size_t count, loff_t *ppos)
{
	unsigned long missing;
		s8 option = 0;

	if (sizeof(dbg_buff) < count + 1)
		return -EFAULT;

	missing = copy_from_user(dbg_buff, ubuf, count);
	if (missing)
		return -EFAULT;

	dbg_buff[count] = '\0';
	if (kstrtos8(dbg_buff, 0, &option))
		return -EFAULT;

	ipa3_active_clients_log_clear();

	return count;
}

static ssize_t ipa3_enable_ipc_low(struct file *file,
	const char __user *ubuf, size_t count, loff_t *ppos)
{
	unsigned long missing;
	s8 option = 0;

	if (sizeof(dbg_buff) < count + 1)
		return -EFAULT;

	missing = copy_from_user(dbg_buff, ubuf, count);
	if (missing)
		return -EFAULT;

	dbg_buff[count] = '\0';
	if (kstrtos8(dbg_buff, 0, &option))
		return -EFAULT;

	mutex_lock(&ipa3_ctx->lock);
	if (option) {
		if (!ipa_ipc_low_buff) {
			ipa_ipc_low_buff =
				ipc_log_context_create(IPA_IPC_LOG_PAGES,
					"ipa_low", 0);
		}
			if (ipa_ipc_low_buff == NULL)
				IPADBG("failed to get logbuf_low\n");
		ipa3_ctx->logbuf_low = ipa_ipc_low_buff;
	} else {
		ipa3_ctx->logbuf_low = NULL;
	}
	mutex_unlock(&ipa3_ctx->lock);

	return count;
}

static const struct ipa3_debugfs_file debugfs_files[] = {
	{
		"gen_reg", IPA_READ_ONLY_MODE, NULL, {
			.read = ipa3_read_gen_reg
		}
	}, {
		"active_clients", IPA_READ_WRITE_MODE, NULL, {
			.read = ipa3_print_active_clients_log,
			.write = ipa3_clear_active_clients_log
		}
	}, {
		"ep_reg", IPA_READ_WRITE_MODE, NULL, {
			.read = ipa3_read_ep_reg,
			.write = ipa3_write_ep_reg,
		}
	}, {
		"keep_awake", IPA_READ_WRITE_MODE, NULL, {
			.read = ipa3_read_keep_awake,
			.write = ipa3_write_keep_awake,
		}
	}, {
		"holb", IPA_WRITE_ONLY_MODE, NULL, {
			.write = ipa3_write_ep_holb,
		}
	}, {
		"hdr", IPA_READ_ONLY_MODE, NULL, {
			.read = ipa3_read_hdr,
		}
	}, {
		"proc_ctx", IPA_READ_ONLY_MODE, NULL, {
			.read = ipa3_read_proc_ctx,
		}
	}, {
		"ip4_rt", IPA_READ_ONLY_MODE, (void *)IPA_IP_v4, {
			.read = ipa3_read_rt,
			.open = ipa3_open_dbg,
		}
	}, {
		"ip4_rt_hw", IPA_READ_ONLY_MODE, (void *)IPA_IP_v4, {
			.read = ipa3_read_rt_hw,
			.open = ipa3_open_dbg,
		}
	}, {
		"ip6_rt", IPA_READ_ONLY_MODE, (void *)IPA_IP_v6, {
			.read = ipa3_read_rt,
			.open = ipa3_open_dbg,
		}
	}, {
		"ip6_rt_hw", IPA_READ_ONLY_MODE, (void *)IPA_IP_v6, {
			.read = ipa3_read_rt_hw,
			.open = ipa3_open_dbg,
		}
	}, {
		"ip4_flt", IPA_READ_ONLY_MODE, (void *)IPA_IP_v4, {
			.read = ipa3_read_flt,
			.open = ipa3_open_dbg,
		}
	}, {
		"ip4_flt_hw", IPA_READ_ONLY_MODE, (void *)IPA_IP_v4, {
			.read = ipa3_read_flt_hw,
			.open = ipa3_open_dbg,
		}
	}, {
		"ip6_flt", IPA_READ_ONLY_MODE, (void *)IPA_IP_v6, {
			.read = ipa3_read_flt,
			.open = ipa3_open_dbg,
		}
	}, {
		"ip6_flt_hw", IPA_READ_ONLY_MODE, (void *)IPA_IP_v6, {
			.read = ipa3_read_flt_hw,
			.open = ipa3_open_dbg,
		}
	}, {
		"stats", IPA_READ_ONLY_MODE, NULL, {
			.read = ipa3_read_stats,
		}
	}, {
		"wstats", IPA_READ_ONLY_MODE, NULL, {
			.read = ipa3_read_wstats,
		}
	}, {
		"wdi", IPA_READ_ONLY_MODE, NULL, {
			.read = ipa3_read_wdi,
		}
	}, {
		"ntn", IPA_READ_ONLY_MODE, NULL, {
			.read = ipa3_read_ntn,
		}
	}, {
		"dbg_cnt", IPA_READ_WRITE_MODE, NULL, {
			.read = ipa3_read_dbg_cnt,
			.write = ipa3_write_dbg_cnt,
		}
	}, {
		"msg", IPA_READ_ONLY_MODE, NULL, {
			.read = ipa3_read_msg,
		}
	}, {
		"ip4_nat", IPA_READ_ONLY_MODE, NULL, {
			.read = ipa3_read_nat4,
		}
	}, {
		"ipv6ct", IPA_READ_ONLY_MODE, NULL, {
			.read = ipa3_read_ipv6ct,
		}
	}, {
		"rm_stats", IPA_READ_ONLY_MODE, NULL, {
			.read = ipa3_rm_read_stats,
		}
	}, {
		"pm_stats", IPA_READ_ONLY_MODE, NULL, {
			.read = ipa3_pm_read_stats,
		}
	}, {
		"pm_ex_stats", IPA_READ_ONLY_MODE, NULL, {
			.read = ipa3_pm_ex_read_stats,
		}
	}, {
		"status_stats", IPA_READ_ONLY_MODE, NULL, {
			.read = ipa_status_stats_read,
		}
	}, {
		"enable_low_prio_print", IPA_WRITE_ONLY_MODE, NULL, {
			.write = ipa3_enable_ipc_low,
		}
	}, {
		"ipa_dump_regs", IPA_READ_ONLY_MODE, NULL, {
			.read = ipa3_read_ipahal_regs,
		}
	}
};

void ipa3_debugfs_init(void)
{
	const size_t debugfs_files_num =
		sizeof(debugfs_files) / sizeof(struct ipa3_debugfs_file);
	size_t i;
	struct dentry *file;

	dent = debugfs_create_dir("ipa", 0);
	if (IS_ERR(dent)) {
		IPAERR("fail to create folder in debug_fs.\n");
		return;
	}

	file = debugfs_create_u32("hw_type", IPA_READ_ONLY_MODE,
		dent, &ipa3_ctx->ipa_hw_type);
	if (!file) {
		IPAERR("could not create hw_type file\n");
		goto fail;
	}


	for (i = 0; i < debugfs_files_num; ++i) {
		const struct ipa3_debugfs_file *curr = &debugfs_files[i];

		file = debugfs_create_file(curr->name, curr->mode, dent,
			curr->data, &curr->fops);
		if (!file || IS_ERR(file)) {
			IPAERR("fail to create file for debug_fs %s\n",
				curr->name);
			goto fail;
		}
	}

	active_clients_buf = NULL;
	active_clients_buf = kzalloc(IPA_DBG_ACTIVE_CLIENT_BUF_SIZE,
			GFP_KERNEL);
	if (active_clients_buf == NULL)
		IPAERR("fail to allocate active clients memory buffer");

	file = debugfs_create_u32("enable_clock_scaling", IPA_READ_WRITE_MODE,
		dent, &ipa3_ctx->enable_clock_scaling);
	if (!file) {
		IPAERR("could not create enable_clock_scaling file\n");
		goto fail;
	}

	file = debugfs_create_u32("clock_scaling_bw_threshold_nominal_mbps",
		IPA_READ_WRITE_MODE, dent,
		&ipa3_ctx->ctrl->clock_scaling_bw_threshold_nominal);
	if (!file) {
		IPAERR("could not create bw_threshold_nominal_mbps\n");
		goto fail;
	}

	file = debugfs_create_u32("clock_scaling_bw_threshold_turbo_mbps",
			IPA_READ_WRITE_MODE, dent,
			&ipa3_ctx->ctrl->clock_scaling_bw_threshold_turbo);
	if (!file) {
		IPAERR("could not create bw_threshold_turbo_mbps\n");
		goto fail;
	}

	file = debugfs_create_u32("clk_rate", IPA_READ_ONLY_MODE,
		dent, &ipa3_ctx->curr_ipa_clk_rate);
	if (!file) {
		IPAERR("could not create clk_rate file\n");
		goto fail;
	}

	ipa_debugfs_init_stats(dent);

	return;

fail:
	debugfs_remove_recursive(dent);
}

void ipa3_debugfs_remove(void)
{
	if (IS_ERR(dent)) {
		IPAERR("ipa3_debugfs_remove: folder was not created.\n");
		return;
	}
	if (active_clients_buf != NULL) {
		kfree(active_clients_buf);
		active_clients_buf = NULL;
	}
	debugfs_remove_recursive(dent);
}

struct dentry *ipa_debugfs_get_root(void)
{
	return dent;
}
EXPORT_SYMBOL(ipa_debugfs_get_root);

#else /* !CONFIG_DEBUG_FS */
void ipa3_debugfs_init(void) {}
void ipa3_debugfs_remove(void) {}
#endif