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android / kernel / msm.git / android-msm-shamu-3.10-marshmallow / . / drivers / platform / msm / ipa / ipa_debugfs.c
blob: eae46f9b9b19bd5394222d2c0e2cfd744e4d826d [file] [log] [blame]
/* Copyright (c) 2012-2014, 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"
#define IPA_MAX_MSG_LEN 4096
#define IPA_DBG_CNTR_ON 127265
#define IPA_DBG_CNTR_OFF 127264
const char *ipa_excp_name[] = {
__stringify_1(IPA_A5_MUX_HDR_EXCP_RSVD0),
__stringify_1(IPA_A5_MUX_HDR_EXCP_RSVD1),
__stringify_1(IPA_A5_MUX_HDR_EXCP_FLAG_IHL),
__stringify_1(IPA_A5_MUX_HDR_EXCP_FLAG_REPLICATED),
__stringify_1(IPA_A5_MUX_HDR_EXCP_FLAG_TAG),
__stringify_1(IPA_A5_MUX_HDR_EXCP_FLAG_SW_FLT),
__stringify_1(IPA_A5_MUX_HDR_EXCP_FLAG_NAT),
__stringify_1(IPA_A5_MUX_HDR_EXCP_FLAG_IP),
};
const char *ipa_status_excp_name[] = {
__stringify_1(IPA_EXCP_DEAGGR),
__stringify_1(IPA_EXCP_REPLICATION),
__stringify_1(IPA_EXCP_IP),
__stringify_1(IPA_EXCP_IHL),
__stringify_1(IPA_EXCP_FRAG_MISS),
__stringify_1(IPA_EXCP_SW),
__stringify_1(IPA_EXCP_NAT),
__stringify_1(IPA_EXCP_NONE),
};
const char *ipa_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(ECM_CONNECT),
__stringify(ECM_DISCONNECT),
};
static struct dentry *dent;
static struct dentry *dfile_gen_reg;
static struct dentry *dfile_ep_reg;
static struct dentry *dfile_ep_holb;
static struct dentry *dfile_hdr;
static struct dentry *dfile_ip4_rt;
static struct dentry *dfile_ip6_rt;
static struct dentry *dfile_ip4_flt;
static struct dentry *dfile_ip6_flt;
static struct dentry *dfile_stats;
static struct dentry *dfile_wstats;
static struct dentry *dfile_dbg_cnt;
static struct dentry *dfile_msg;
static struct dentry *dfile_ip4_nat;
static struct dentry *dfile_rm_stats;
static char dbg_buff[IPA_MAX_MSG_LEN];
static s8 ep_reg_idx;
int _ipa_read_gen_reg_v1_0(char *buff, int max_len)
{
return 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_FILTER=0x%x\n"
"IPA_SHARED_MEM_SIZE=0x%x\n"
"IPA_HEAD_OF_LINE_BLOCK_EN=0x%x\n",
ipa_read_reg(ipa_ctx->mmio, IPA_VERSION_OFST),
ipa_read_reg(ipa_ctx->mmio, IPA_COMP_HW_VERSION_OFST),
ipa_read_reg(ipa_ctx->mmio, IPA_ROUTE_OFST_v1_0),
ipa_read_reg(ipa_ctx->mmio, IPA_FILTER_OFST_v1_0),
ipa_read_reg(ipa_ctx->mmio,
IPA_SHARED_MEM_SIZE_OFST_v1_0),
ipa_read_reg(ipa_ctx->mmio,
IPA_HEAD_OF_LINE_BLOCK_EN_OFST));
}
int _ipa_read_gen_reg_v1_1(char *buff, int max_len)
{
return 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_FILTER=0x%x\n"
"IPA_SHARED_MEM_SIZE=0x%x\n",
ipa_read_reg(ipa_ctx->mmio, IPA_VERSION_OFST),
ipa_read_reg(ipa_ctx->mmio, IPA_COMP_HW_VERSION_OFST),
ipa_read_reg(ipa_ctx->mmio, IPA_ROUTE_OFST_v1_1),
ipa_read_reg(ipa_ctx->mmio, IPA_FILTER_OFST_v1_1),
ipa_read_reg(ipa_ctx->mmio,
IPA_SHARED_MEM_SIZE_OFST_v1_1));
}
int _ipa_read_gen_reg_v2_0(char *buff, int max_len)
{
return 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_FILTER=0x%x\n"
"IPA_SHARED_MEM_RESTRICTED=0x%x\n"
"IPA_SHARED_MEM_SIZE=0x%x\n",
ipa_read_reg(ipa_ctx->mmio, IPA_VERSION_OFST),
ipa_read_reg(ipa_ctx->mmio, IPA_COMP_HW_VERSION_OFST),
ipa_read_reg(ipa_ctx->mmio, IPA_ROUTE_OFST_v1_1),
ipa_read_reg(ipa_ctx->mmio, IPA_FILTER_OFST_v1_1),
ipa_read_reg_field(ipa_ctx->mmio,
IPA_SHARED_MEM_SIZE_OFST_v2_0,
IPA_SHARED_MEM_SIZE_SHARED_MEM_BADDR_BMSK_v2_0,
IPA_SHARED_MEM_SIZE_SHARED_MEM_BADDR_SHFT_v2_0),
ipa_read_reg_field(ipa_ctx->mmio,
IPA_SHARED_MEM_SIZE_OFST_v2_0,
IPA_SHARED_MEM_SIZE_SHARED_MEM_SIZE_BMSK_v2_0,
IPA_SHARED_MEM_SIZE_SHARED_MEM_SIZE_SHFT_v2_0));
}
static ssize_t ipa_read_gen_reg(struct file *file, char __user *ubuf,
size_t count, loff_t *ppos)
{
int nbytes;
ipa_inc_client_enable_clks();
nbytes = ipa_ctx->ctrl->ipa_read_gen_reg(dbg_buff, IPA_MAX_MSG_LEN);
ipa_dec_client_disable_clks();
return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, nbytes);
}
static ssize_t ipa_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;
ipa_cfg_ep_holb(ep_idx, &holb);
return count;
}
static ssize_t ipa_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 >= IPA_NUM_PIPES) {
IPAERR("bad pipe specified %u\n", option);
return count;
}
ep_reg_idx = option;
return count;
}
int _ipa_read_ep_reg_v1_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_MODE_%u=0x%x\n"
"IPA_ENDP_INIT_AGGR_%u=0x%x\n"
"IPA_ENDP_INIT_ROUTE_%u=0x%x\n",
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_NAT_N_OFST_v1_0(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_HDR_N_OFST_v1_0(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_MODE_N_OFST_v1_0(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_AGGR_N_OFST_v1_0(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_ROUTE_N_OFST_v1_0(pipe)));
}
int _ipa_read_ep_reg_v1_1(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_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",
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_NAT_N_OFST_v1_1(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_HDR_N_OFST_v1_1(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_MODE_N_OFST_v1_1(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_AGGR_N_OFST_v1_1(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_ROUTE_N_OFST_v1_1(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_CTRL_N_OFST(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_HOL_BLOCK_EN_N_OFST_v1_1(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_HOL_BLOCK_TIMER_N_OFST_v1_1(pipe))
);
}
int _ipa_read_ep_reg_v2_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",
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_NAT_N_OFST_v2_0(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_HDR_N_OFST_v2_0(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_HDR_EXT_n_OFST_v2_0(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_MODE_N_OFST_v2_0(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_AGGR_N_OFST_v2_0(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_ROUTE_N_OFST_v2_0(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_CTRL_N_OFST(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_HOL_BLOCK_EN_N_OFST_v2_0(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_HOL_BLOCK_TIMER_N_OFST_v2_0(pipe)),
pipe, ipa_read_reg(ipa_ctx->mmio,
IPA_ENDP_INIT_DEAGGR_n_OFST_v2_0(pipe)));
}
static ssize_t ipa_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 = IPA_NUM_PIPES;
} else {
start_idx = ep_reg_idx;
end_idx = start_idx + 1;
}
pos = *ppos;
ipa_inc_client_enable_clks();
for (i = start_idx; i < end_idx; i++) {
nbytes = ipa_ctx->ctrl->ipa_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_dec_client_disable_clks();
return ret;
}
size += ret;
ubuf += nbytes;
count -= nbytes;
}
ipa_dec_client_disable_clks();
*ppos = pos + size;
return size;
}
static ssize_t ipa_read_hdr(struct file *file, char __user *ubuf, size_t count,
loff_t *ppos)
{
int nbytes = 0;
int cnt = 0;
int i = 0;
struct ipa_hdr_entry *entry;
mutex_lock(&ipa_ctx->lock);
list_for_each_entry(entry, &ipa_ctx->hdr_tbl.head_hdr_entry_list,
link) {
nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt,
"name:%s len=%d ref=%d partial=%d lcl=%d ofst=%u ",
entry->name,
entry->hdr_len, entry->ref_cnt,
entry->is_partial,
ipa_ctx->hdr_tbl_lcl,
entry->offset_entry->offset >> 2);
for (i = 0; i < entry->hdr_len; i++) {
scnprintf(dbg_buff + cnt + nbytes + i * 2,
IPA_MAX_MSG_LEN - cnt - nbytes - i * 2,
"%02x", entry->hdr[i]);
}
scnprintf(dbg_buff + cnt + nbytes + entry->hdr_len * 2,
IPA_MAX_MSG_LEN - cnt - nbytes - entry->hdr_len * 2,
"\n");
cnt += nbytes + entry->hdr_len * 2 + 1;
}
mutex_unlock(&ipa_ctx->lock);
return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, cnt);
}
static int ipa_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_info("tos_value:%d ", attrib->tos_value);
if (attrib->attrib_mask & IPA_FLT_TOS_MASKED)
pr_info("tos_mask:%d ", attrib->tos_mask);
if (attrib->attrib_mask & IPA_FLT_PROTOCOL)
pr_info("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_info(
"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_info(
"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_info(
"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_info(
"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_info("src_port_range:%u %u ",
attrib->src_port_lo,
attrib->src_port_hi);
}
if (attrib->attrib_mask & IPA_FLT_DST_PORT_RANGE) {
pr_info("dst_port_range:%u %u ",
attrib->dst_port_lo,
attrib->dst_port_hi);
}
if (attrib->attrib_mask & IPA_FLT_TYPE)
pr_info("type:%d ", attrib->type);
if (attrib->attrib_mask & IPA_FLT_CODE)
pr_info("code:%d ", attrib->code);
if (attrib->attrib_mask & IPA_FLT_SPI)
pr_info("spi:%x ", attrib->spi);
if (attrib->attrib_mask & IPA_FLT_SRC_PORT)
pr_info("src_port:%u ", attrib->src_port);
if (attrib->attrib_mask & IPA_FLT_DST_PORT)
pr_info("dst_port:%u ", attrib->dst_port);
if (attrib->attrib_mask & IPA_FLT_TC)
pr_info("tc:%d ", attrib->u.v6.tc);
if (attrib->attrib_mask & IPA_FLT_FLOW_LABEL)
pr_info("flow_label:%x ", attrib->u.v6.flow_label);
if (attrib->attrib_mask & IPA_FLT_NEXT_HDR)
pr_info("next_hdr:%d ", attrib->u.v6.next_hdr);
if (attrib->attrib_mask & IPA_FLT_META_DATA) {
pr_info(
"metadata:%x metadata_mask:%x",
attrib->meta_data, attrib->meta_data_mask);
}
if (attrib->attrib_mask & IPA_FLT_FRAGMENT)
pr_info("frg ");
pr_info("\n");
return 0;
}
static int ipa_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_info("tos_value:%d ", attrib->tos_eq);
if (attrib->protocol_eq_present)
pr_info("protocol:%d ", attrib->protocol_eq);
for (i = 0; i < attrib->num_ihl_offset_range_16; i++) {
pr_info(
"(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);
}
for (i = 0; i < attrib->num_offset_meq_32; i++) {
pr_info(
"(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->tc_eq_present)
pr_info("tc:%d ", attrib->tc_eq);
if (attrib->fl_eq_present)
pr_info("flow_label:%d ", attrib->fl_eq);
if (attrib->ihl_offset_eq_16_present) {
pr_info(
"(ihl_ofst_eq16:%d val:0x%x) ",
attrib->ihl_offset_eq_16.offset,
attrib->ihl_offset_eq_16.value);
}
for (i = 0; i < attrib->num_ihl_offset_meq_32; i++) {
pr_info(
"(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);
}
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_info(
"(ofst_meq128: ofst:%d mask:%pI6 val:%pI6) ",
attrib->offset_meq_128[i].offset,
mask + 0,
addr + 0);
}
if (attrib->metadata_meq32_present) {
pr_info(
"(metadata: ofst:%u mask:0x%x val:0x%x) ",
attrib->metadata_meq32.offset,
attrib->metadata_meq32.mask,
attrib->metadata_meq32.value);
}
if (attrib->ipv4_frag_eq_present)
pr_info("frg ");
pr_info("\n");
return 0;
}
static int ipa_open_dbg(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 0;
}
static ssize_t ipa_read_rt(struct file *file, char __user *ubuf, size_t count,
loff_t *ppos)
{
int i = 0;
struct ipa_rt_tbl *tbl;
struct ipa_rt_entry *entry;
struct ipa_rt_tbl_set *set;
enum ipa_ip_type ip = (enum ipa_ip_type)file->private_data;
u32 hdr_ofst;
set = &ipa_ctx->rt_tbl_set[ip];
mutex_lock(&ipa_ctx->lock);
if (ip == IPA_IP_v6) {
if (ipa_ctx->ip6_rt_tbl_lcl)
pr_info("Table Resides on local memory\n");
else
pr_info("Table Resides on system(ddr) memory\n");
} else if (ip == IPA_IP_v4) {
if (ipa_ctx->ip4_rt_tbl_lcl)
pr_info("Table Resides on local memory\n");
else
pr_info("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->hdr)
hdr_ofst = entry->hdr->offset_entry->offset;
else
hdr_ofst = 0;
pr_info(
"tbl_idx:%d tbl_name:%s tbl_ref:%u rule_idx:%d dst:%d ep:%d S:%u hdr_ofst[words]:%u attrib_mask:%08x ",
entry->tbl->idx, entry->tbl->name,
entry->tbl->ref_cnt, i, entry->rule.dst,
ipa_get_ep_mapping(entry->rule.dst),
!ipa_ctx->hdr_tbl_lcl,
hdr_ofst >> 2,
entry->rule.attrib.attrib_mask);
ipa_attrib_dump(&entry->rule.attrib, ip);
i++;
}
}
mutex_unlock(&ipa_ctx->lock);
return 0;
}
static ssize_t ipa_read_flt(struct file *file, char __user *ubuf, size_t count,
loff_t *ppos)
{
int i;
int j;
int k;
struct ipa_flt_tbl *tbl;
struct ipa_flt_entry *entry;
enum ipa_ip_type ip = (enum ipa_ip_type)file->private_data;
struct ipa_rt_tbl *rt_tbl;
u32 rt_tbl_idx;
u32 bitmap;
bool eq;
tbl = &ipa_ctx->glob_flt_tbl[ip];
mutex_lock(&ipa_ctx->lock);
i = 0;
list_for_each_entry(entry, &tbl->head_flt_rule_list, link) {
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 = ipa_id_find(entry->rule.rt_tbl_hdl);
if (rt_tbl)
rt_tbl_idx = rt_tbl->idx;
else
rt_tbl_idx = ~0;
bitmap = entry->rule.attrib.attrib_mask;
eq = false;
}
pr_info(
"ep_idx:global rule_idx:%d act:%d rt_tbl_idx:%d "
"attrib_mask:%08x to_uc:%d, retain_hdr:%d eq:%d ",
i, entry->rule.action, rt_tbl_idx, bitmap,
entry->rule.to_uc, entry->rule.retain_hdr, eq);
if (eq)
ipa_attrib_dump_eq(
&entry->rule.eq_attrib);
else
ipa_attrib_dump(
&entry->rule.attrib, ip);
i++;
}
for (j = 0; j < IPA_NUM_PIPES; j++) {
tbl = &ipa_ctx->flt_tbl[j][ip];
i = 0;
list_for_each_entry(entry, &tbl->head_flt_rule_list, link) {
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 = ipa_id_find(entry->rule.rt_tbl_hdl);
if (rt_tbl)
rt_tbl_idx = rt_tbl->idx;
else
rt_tbl_idx = ~0;
bitmap = entry->rule.attrib.attrib_mask;
eq = false;
}
k = ipa_get_client_mapping(j);
pr_info(
"ep_idx:%d rule_idx:%d act:%d rt_tbl_idx:%d "
"attrib_mask:%08x to_uc:%d, retain_hdr:%d eq:%d ",
j, i, entry->rule.action,
rt_tbl_idx, bitmap, entry->rule.to_uc,
entry->rule.retain_hdr, eq);
if (eq)
ipa_attrib_dump_eq(
&entry->rule.eq_attrib);
else
ipa_attrib_dump(
&entry->rule.attrib, ip);
i++;
}
}
mutex_unlock(&ipa_ctx->lock);
return 0;
}
static ssize_t ipa_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 < IPA_NUM_PIPES; i++)
connect |= (ipa_ctx->ep[i].valid << i);
if (ipa_ctx->ipa_hw_type == IPA_HW_v2_0) {
nbytes = scnprintf(dbg_buff, IPA_MAX_MSG_LEN,
"sw_tx=%u\n"
"hw_tx=%u\n"
"tx_compl=%u\n"
"wan_rx=%u\n"
"stat_compl=%u\n"
"lan_aggr_close=%u\n"
"wan_aggr_close=%u\n"
"con_clnt_bmap=0x%x\n",
ipa_ctx->stats.tx_sw_pkts,
ipa_ctx->stats.tx_hw_pkts,
ipa_ctx->stats.tx_pkts_compl,
ipa_ctx->stats.rx_pkts,
ipa_ctx->stats.stat_compl,
ipa_ctx->stats.aggr_close,
ipa_ctx->stats.wan_aggr_close,
connect);
cnt += nbytes;
for (i = 0; i < MAX_NUM_EXCP; i++) {
nbytes = scnprintf(dbg_buff + cnt,
IPA_MAX_MSG_LEN - cnt,
"lan_rx_excp[%u:%20s]=%u\n", i,
ipa_status_excp_name[i],
ipa_ctx->stats.rx_excp_pkts[i]);
cnt += nbytes;
}
} else{
nbytes = scnprintf(dbg_buff, IPA_MAX_MSG_LEN,
"sw_tx=%u\n"
"hw_tx=%u\n"
"rx=%u\n"
"rx_repl_repost=%u\n"
"rx_q_len=%u\n"
"act_clnt=%u\n"
"con_clnt_bmap=0x%x\n"
"a2_power_on_reqs_in=%u\n"
"a2_power_on_reqs_out=%u\n"
"a2_power_off_reqs_in=%u\n"
"a2_power_off_reqs_out=%u\n"
"a2_power_modem_acks=%u\n"
"a2_power_apps_acks=%u\n",
ipa_ctx->stats.tx_sw_pkts,
ipa_ctx->stats.tx_hw_pkts,
ipa_ctx->stats.rx_pkts,
ipa_ctx->stats.rx_repl_repost,
ipa_ctx->stats.rx_q_len,
ipa_ctx->ipa_active_clients,
connect,
ipa_ctx->stats.a2_power_on_reqs_in,
ipa_ctx->stats.a2_power_on_reqs_out,
ipa_ctx->stats.a2_power_off_reqs_in,
ipa_ctx->stats.a2_power_off_reqs_out,
ipa_ctx->stats.a2_power_modem_acks,
ipa_ctx->stats.a2_power_apps_acks);
cnt += nbytes;
for (i = 0; i < MAX_NUM_EXCP; i++) {
nbytes = scnprintf(dbg_buff + cnt,
IPA_MAX_MSG_LEN - cnt,
"rx_excp[%u:%35s]=%u\n", i, ipa_excp_name[i],
ipa_ctx->stats.rx_excp_pkts[i]);
cnt += nbytes;
}
}
return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, cnt);
}
static ssize_t ipa_read_wstats(struct file *file, char __user *ubuf,
size_t count, loff_t *ppos)
{
#define FRMT_STR "%25s %10u\n"
#define FRMT_STR1 "%25s %10u\n\n"
int cnt = 0;
int nbytes;
nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt, FRMT_STR,
"Rx Pkts Rcvd:", ipa_ctx->wstats.rx_pkts_rcvd);
cnt += nbytes;
nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt, FRMT_STR,
"Rx Pkts Status Rcvd:", ipa_ctx->wstats.rx_pkts_status_rcvd);
cnt += nbytes;
nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt, FRMT_STR,
"Rx DH Rcvd:", ipa_ctx->wstats.rx_hd_rcvd);
cnt += nbytes;
nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt, FRMT_STR,
"Rx DH Processed:", ipa_ctx->wstats.rx_hd_processed);
cnt += nbytes;
nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt, FRMT_STR,
"Rx DH Sent Back:", ipa_ctx->wstats.rx_hd_reply);
cnt += nbytes;
nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt, FRMT_STR1,
"Rx Pkt Leak:", ipa_ctx->wstats.rx_pkt_leak);
cnt += nbytes;
nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt, FRMT_STR,
"Rx DP Fail:", ipa_ctx->wstats.rx_dp_fail);
cnt += nbytes;
nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt, FRMT_STR,
"Tx Buf Total:", ipa_ctx->wlan_comm_cnt);
cnt += nbytes;
nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt, FRMT_STR,
"Tx Buf Cnt:", ipa_ctx->wstats.tx_buf_cnt);
cnt += nbytes;
nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt, FRMT_STR,
"Tx Pkts Sent:", ipa_ctx->wstats.tx_pkts_rcvd);
cnt += nbytes;
nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt, FRMT_STR,
"Tx Pkts Freed:", ipa_ctx->wstats.tx_pkts_freed);
cnt += nbytes;
nbytes = scnprintf(dbg_buff + cnt, IPA_MAX_MSG_LEN - cnt, FRMT_STR,
"Avail Fifo Desc:", ipa_ctx->ep[19].avail_fifo_desc);
cnt += nbytes;
return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, cnt);
}
void _ipa_write_dbg_cnt_v1(int option)
{
if (option == 1)
ipa_write_reg(ipa_ctx->mmio, IPA_DEBUG_CNT_CTRL_N_OFST_v1(0),
IPA_DBG_CNTR_ON);
else
ipa_write_reg(ipa_ctx->mmio, IPA_DEBUG_CNT_CTRL_N_OFST_v1(0),
IPA_DBG_CNTR_OFF);
}
void _ipa_write_dbg_cnt_v2_0(int option)
{
if (option == 1)
ipa_write_reg(ipa_ctx->mmio, IPA_DEBUG_CNT_CTRL_N_OFST_v2_0(0),
IPA_DBG_CNTR_ON);
else
ipa_write_reg(ipa_ctx->mmio, IPA_DEBUG_CNT_CTRL_N_OFST_v2_0(0),
IPA_DBG_CNTR_OFF);
}
static ssize_t ipa_write_dbg_cnt(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
unsigned long missing;
u32 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 (kstrtou32(dbg_buff, 0, &option))
return -EFAULT;
ipa_inc_client_enable_clks();
ipa_ctx->ctrl->ipa_write_dbg_cnt(option);
ipa_dec_client_disable_clks();
return count;
}
int _ipa_read_dbg_cnt_v1(char *buf, int max_len)
{
int regval;
regval = ipa_read_reg(ipa_ctx->mmio,
IPA_DEBUG_CNT_REG_N_OFST_v1(0));
return scnprintf(buf, max_len,
"IPA_DEBUG_CNT_REG_0=0x%x\n", regval);
}
int _ipa_read_dbg_cnt_v2_0(char *buf, int max_len)
{
int regval;
regval = ipa_read_reg(ipa_ctx->mmio,
IPA_DEBUG_CNT_REG_N_OFST_v2_0(0));
return scnprintf(buf, max_len,
"IPA_DEBUG_CNT_REG_0=0x%x\n", regval);
}
static ssize_t ipa_read_dbg_cnt(struct file *file, char __user *ubuf,
size_t count, loff_t *ppos)
{
int nbytes;
ipa_inc_client_enable_clks();
nbytes = ipa_ctx->ctrl->ipa_read_dbg_cnt(dbg_buff, IPA_MAX_MSG_LEN);
ipa_dec_client_disable_clks();
return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, nbytes);
}
static ssize_t ipa_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,
ipa_event_name[i],
ipa_ctx->stats.msg_w[i],
ipa_ctx->stats.msg_r[i]);
cnt += nbytes;
}
return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, cnt);
}
static ssize_t ipa_read_nat4(struct file *file,
char __user *ubuf, size_t count,
loff_t *ppos) {
#define ENTRY_U32_FIELDS 8
#define NAT_ENTRY_ENABLE 0x8000
#define NAT_ENTRY_RST_FIN_BIT 0x4000
#define BASE_TABLE 0
#define EXPANSION_TABLE 1
u32 *base_tbl, *indx_tbl;
u32 tbl_size, *tmp;
u32 value, i, j, rule_id;
u16 enable, tbl_entry, flag;
value = ipa_ctx->nat_mem.public_ip_addr;
pr_info(
"Table IP Address:%d.%d.%d.%d\n",
((value & 0xFF000000) >> 24),
((value & 0x00FF0000) >> 16),
((value & 0x0000FF00) >> 8),
((value & 0x000000FF)));
pr_info("Table Size:%d\n",
ipa_ctx->nat_mem.size_base_tables);
pr_info("Expansion Table Size:%d\n",
ipa_ctx->nat_mem.size_expansion_tables);
if (!ipa_ctx->nat_mem.is_sys_mem)
pr_info("Not supported for local(shared) memory\n");
/* Print Base tables */
rule_id = 0;
for (j = 0; j < 2; j++) {
if (j == BASE_TABLE) {
tbl_size = ipa_ctx->nat_mem.size_base_tables;
base_tbl = (u32 *)ipa_ctx->nat_mem.ipv4_rules_addr;
pr_info("\nBase Table:\n");
} else {
tbl_size = ipa_ctx->nat_mem.size_expansion_tables;
base_tbl =
(u32 *)ipa_ctx->nat_mem.ipv4_expansion_rules_addr;
pr_info("\nExpansion Base Table:\n");
}
if (base_tbl != NULL) {
for (i = 0; i <= tbl_size; i++, rule_id++) {
tmp = base_tbl;
value = tmp[4];
enable = ((value & 0xFFFF0000) >> 16);
if (enable & NAT_ENTRY_ENABLE) {
pr_info("Rule:%d ", rule_id);
value = *tmp;
pr_info(
"Private_IP:%d.%d.%d.%d ",
((value & 0xFF000000) >> 24),
((value & 0x00FF0000) >> 16),
((value & 0x0000FF00) >> 8),
((value & 0x000000FF)));
tmp++;
value = *tmp;
pr_info(
"Target_IP:%d.%d.%d.%d ",
((value & 0xFF000000) >> 24),
((value & 0x00FF0000) >> 16),
((value & 0x0000FF00) >> 8),
((value & 0x000000FF)));
tmp++;
value = *tmp;
pr_info(
"Next_Index:%d Public_Port:%d ",
(value & 0x0000FFFF),
((value & 0xFFFF0000) >> 16));
tmp++;
value = *tmp;
pr_info(
"Private_Port:%d Target_Port:%d ",
(value & 0x0000FFFF),
((value & 0xFFFF0000) >> 16));
tmp++;
value = *tmp;
flag = ((value & 0xFFFF0000) >> 16);
if (flag & NAT_ENTRY_RST_FIN_BIT) {
pr_info(
"IP_CKSM_delta:0x%x Flags:%s ",
(value & 0x0000FFFF),
"Direct_To_A5");
} else {
pr_info(
"IP_CKSM_delta:0x%x Flags:%s ",
(value & 0x0000FFFF),
"Fwd_to_route");
}
tmp++;
value = *tmp;
pr_info(
"Time_stamp:0x%x Proto:%d ",
(value & 0x00FFFFFF),
((value & 0xFF000000) >> 24));
tmp++;
value = *tmp;
pr_info(
"Prev_Index:%d Indx_tbl_entry:%d ",
(value & 0x0000FFFF),
((value & 0xFFFF0000) >> 16));
tmp++;
value = *tmp;
pr_info(
"TCP_UDP_cksum_delta:0x%x\n",
((value & 0xFFFF0000) >> 16));
}
base_tbl += ENTRY_U32_FIELDS;
}
}
}
/* Print Index tables */
rule_id = 0;
for (j = 0; j < 2; j++) {
if (j == BASE_TABLE) {
tbl_size = ipa_ctx->nat_mem.size_base_tables;
indx_tbl = (u32 *)ipa_ctx->nat_mem.index_table_addr;
pr_info("\nIndex Table:\n");
} else {
tbl_size = ipa_ctx->nat_mem.size_expansion_tables;
indx_tbl =
(u32 *)ipa_ctx->nat_mem.index_table_expansion_addr;
pr_info("\nExpansion Index Table:\n");
}
if (indx_tbl != NULL) {
for (i = 0; i <= tbl_size; i++, rule_id++) {
tmp = indx_tbl;
value = *tmp;
tbl_entry = (value & 0x0000FFFF);
if (tbl_entry) {
pr_info("Rule:%d ", rule_id);
value = *tmp;
pr_info(
"Table_Entry:%d Next_Index:%d\n",
tbl_entry,
((value & 0xFFFF0000) >> 16));
}
indx_tbl++;
}
}
}
return 0;
}
static ssize_t ipa_rm_read_stats(struct file *file, char __user *ubuf,
size_t count, loff_t *ppos)
{
int result, nbytes, cnt = 0;
result = ipa_rm_stat(dbg_buff, IPA_MAX_MSG_LEN);
if (result < 0) {
nbytes = scnprintf(dbg_buff, IPA_MAX_MSG_LEN,
"Error in printing RM stat %d\n", result);
cnt += nbytes;
} else
cnt += result;
return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, cnt);
}
const struct file_operations ipa_gen_reg_ops = {
.read = ipa_read_gen_reg,
};
const struct file_operations ipa_ep_reg_ops = {
.read = ipa_read_ep_reg,
.write = ipa_write_ep_reg,
};
const struct file_operations ipa_ep_holb_ops = {
.write = ipa_write_ep_holb,
};
const struct file_operations ipa_hdr_ops = {
.read = ipa_read_hdr,
};
const struct file_operations ipa_rt_ops = {
.read = ipa_read_rt,
.open = ipa_open_dbg,
};
const struct file_operations ipa_flt_ops = {
.read = ipa_read_flt,
.open = ipa_open_dbg,
};
const struct file_operations ipa_stats_ops = {
.read = ipa_read_stats,
};
const struct file_operations ipa_wstats_ops = {
.read = ipa_read_wstats,
};
const struct file_operations ipa_msg_ops = {
.read = ipa_read_msg,
};
const struct file_operations ipa_dbg_cnt_ops = {
.read = ipa_read_dbg_cnt,
.write = ipa_write_dbg_cnt,
};
const struct file_operations ipa_nat4_ops = {
.read = ipa_read_nat4,
};
const struct file_operations ipa_rm_stats = {
.read = ipa_rm_read_stats,
};
void ipa_debugfs_init(void)
{
const mode_t read_only_mode = S_IRUSR | S_IRGRP | S_IROTH;
const mode_t read_write_mode = S_IRUSR | S_IRGRP | S_IROTH |
S_IWUSR | S_IWGRP | S_IWOTH;
const mode_t write_only_mode = S_IWUSR | S_IWGRP | S_IWOTH;
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", read_only_mode,
dent, &ipa_ctx->ipa_hw_type);
if (!file) {
IPAERR("could not create hw_type file\n");
goto fail;
}
dfile_gen_reg = debugfs_create_file("gen_reg", read_only_mode, dent, 0,
&ipa_gen_reg_ops);
if (!dfile_gen_reg || IS_ERR(dfile_gen_reg)) {
IPAERR("fail to create file for debug_fs gen_reg\n");
goto fail;
}
dfile_ep_reg = debugfs_create_file("ep_reg", read_write_mode, dent, 0,
&ipa_ep_reg_ops);
if (!dfile_ep_reg || IS_ERR(dfile_ep_reg)) {
IPAERR("fail to create file for debug_fs ep_reg\n");
goto fail;
}
dfile_ep_holb = debugfs_create_file("holb", write_only_mode, dent,
0, &ipa_ep_holb_ops);
if (!dfile_ep_holb || IS_ERR(dfile_ep_holb)) {
IPAERR("fail to create file for debug_fs dfile_ep_hol_en\n");
goto fail;
}
dfile_hdr = debugfs_create_file("hdr", read_only_mode, dent, 0,
&ipa_hdr_ops);
if (!dfile_hdr || IS_ERR(dfile_hdr)) {
IPAERR("fail to create file for debug_fs hdr\n");
goto fail;
}
dfile_ip4_rt = debugfs_create_file("ip4_rt", read_only_mode, dent,
(void *)IPA_IP_v4, &ipa_rt_ops);
if (!dfile_ip4_rt || IS_ERR(dfile_ip4_rt)) {
IPAERR("fail to create file for debug_fs ip4 rt\n");
goto fail;
}
dfile_ip6_rt = debugfs_create_file("ip6_rt", read_only_mode, dent,
(void *)IPA_IP_v6, &ipa_rt_ops);
if (!dfile_ip6_rt || IS_ERR(dfile_ip6_rt)) {
IPAERR("fail to create file for debug_fs ip6:w" " rt\n");
goto fail;
}
dfile_ip4_flt = debugfs_create_file("ip4_flt", read_only_mode, dent,
(void *)IPA_IP_v4, &ipa_flt_ops);
if (!dfile_ip4_flt || IS_ERR(dfile_ip4_flt)) {
IPAERR("fail to create file for debug_fs ip4 flt\n");
goto fail;
}
dfile_ip6_flt = debugfs_create_file("ip6_flt", read_only_mode, dent,
(void *)IPA_IP_v6, &ipa_flt_ops);
if (!dfile_ip6_flt || IS_ERR(dfile_ip6_flt)) {
IPAERR("fail to create file for debug_fs ip6 flt\n");
goto fail;
}
dfile_stats = debugfs_create_file("stats", read_only_mode, dent, 0,
&ipa_stats_ops);
if (!dfile_stats || IS_ERR(dfile_stats)) {
IPAERR("fail to create file for debug_fs stats\n");
goto fail;
}
dfile_wstats = debugfs_create_file("wstats", read_only_mode,
dent, 0, &ipa_wstats_ops);
if (!dfile_wstats || IS_ERR(dfile_wstats)) {
IPAERR("fail to create file for debug_fs wstats\n");
goto fail;
}
dfile_dbg_cnt = debugfs_create_file("dbg_cnt", read_write_mode, dent, 0,
&ipa_dbg_cnt_ops);
if (!dfile_dbg_cnt || IS_ERR(dfile_dbg_cnt)) {
IPAERR("fail to create file for debug_fs dbg_cnt\n");
goto fail;
}
dfile_msg = debugfs_create_file("msg", read_only_mode, dent, 0,
&ipa_msg_ops);
if (!dfile_msg || IS_ERR(dfile_msg)) {
IPAERR("fail to create file for debug_fs msg\n");
goto fail;
}
dfile_ip4_nat = debugfs_create_file("ip4_nat", read_only_mode, dent,
0, &ipa_nat4_ops);
if (!dfile_ip4_nat || IS_ERR(dfile_ip4_nat)) {
IPAERR("fail to create file for debug_fs ip4 nat\n");
goto fail;
}
dfile_rm_stats = debugfs_create_file("rm_stats",
read_only_mode, dent, 0, &ipa_rm_stats);
if (!dfile_rm_stats || IS_ERR(dfile_rm_stats)) {
IPAERR("fail to create file for debug_fs rm_stats\n");
goto fail;
}
return;
fail:
debugfs_remove_recursive(dent);
}
void ipa_debugfs_remove(void)
{
if (IS_ERR(dent)) {
IPAERR("ipa_debugfs_remove: folder was not created.\n");
return;
}
debugfs_remove_recursive(dent);
}
#else /* !CONFIG_DEBUG_FS */
void ipa_debugfs_init(void) {}
void ipa_debugfs_remove(void) {}
#endif