Commit fd88b31a authored by Hariprasad Shenai's avatar Hariprasad Shenai Committed by David S. Miller
Browse files

cxgb4: Add cxgb4_debugfs.c, move all debugfs code to new file


Signed-off-by: default avatarHariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1a288172
......@@ -6,3 +6,4 @@ obj-$(CONFIG_CHELSIO_T4) += cxgb4.o
cxgb4-objs := cxgb4_main.o l2t.o t4_hw.o sge.o
cxgb4-$(CONFIG_CHELSIO_T4_DCB) += cxgb4_dcb.o
cxgb4-$(CONFIG_DEBUG_FS) += cxgb4_debugfs.o
......@@ -1085,4 +1085,5 @@ void t4_db_dropped(struct adapter *adapter);
int t4_fwaddrspace_write(struct adapter *adap, unsigned int mbox,
u32 addr, u32 val);
void t4_sge_decode_idma_state(struct adapter *adapter, int state);
void t4_free_mem(void *addr);
#endif /* __CXGB4_H__ */
/*
* This file is part of the Chelsio T4 Ethernet driver for Linux.
*
* Copyright (c) 2003-2014 Chelsio Communications, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/seq_file.h>
#include <linux/debugfs.h>
#include <linux/string_helpers.h>
#include <linux/sort.h>
#include "cxgb4.h"
#include "t4_regs.h"
#include "t4fw_api.h"
#include "cxgb4_debugfs.h"
#include "l2t.h"
static ssize_t mem_read(struct file *file, char __user *buf, size_t count,
loff_t *ppos)
{
loff_t pos = *ppos;
loff_t avail = file_inode(file)->i_size;
unsigned int mem = (uintptr_t)file->private_data & 3;
struct adapter *adap = file->private_data - mem;
__be32 *data;
int ret;
if (pos < 0)
return -EINVAL;
if (pos >= avail)
return 0;
if (count > avail - pos)
count = avail - pos;
data = t4_alloc_mem(count);
if (!data)
return -ENOMEM;
spin_lock(&adap->win0_lock);
ret = t4_memory_rw(adap, 0, mem, pos, count, data, T4_MEMORY_READ);
spin_unlock(&adap->win0_lock);
if (ret) {
t4_free_mem(data);
return ret;
}
ret = copy_to_user(buf, data, count);
t4_free_mem(data);
if (ret)
return -EFAULT;
*ppos = pos + count;
return count;
}
static const struct file_operations mem_debugfs_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = mem_read,
.llseek = default_llseek,
};
static void add_debugfs_mem(struct adapter *adap, const char *name,
unsigned int idx, unsigned int size_mb)
{
struct dentry *de;
de = debugfs_create_file(name, S_IRUSR, adap->debugfs_root,
(void *)adap + idx, &mem_debugfs_fops);
if (de && de->d_inode)
de->d_inode->i_size = size_mb << 20;
}
/* Add an array of Debug FS files.
*/
void add_debugfs_files(struct adapter *adap,
struct t4_debugfs_entry *files,
unsigned int nfiles)
{
int i;
/* debugfs support is best effort */
for (i = 0; i < nfiles; i++)
debugfs_create_file(files[i].name, files[i].mode,
adap->debugfs_root,
(void *)adap + files[i].data,
files[i].ops);
}
int t4_setup_debugfs(struct adapter *adap)
{
int i;
u32 size;
static struct t4_debugfs_entry t4_debugfs_files[] = {
{ "l2t", &t4_l2t_fops, S_IRUSR, 0},
};
add_debugfs_files(adap,
t4_debugfs_files,
ARRAY_SIZE(t4_debugfs_files));
i = t4_read_reg(adap, MA_TARGET_MEM_ENABLE);
if (i & EDRAM0_ENABLE) {
size = t4_read_reg(adap, MA_EDRAM0_BAR);
add_debugfs_mem(adap, "edc0", MEM_EDC0, EDRAM_SIZE_GET(size));
}
if (i & EDRAM1_ENABLE) {
size = t4_read_reg(adap, MA_EDRAM1_BAR);
add_debugfs_mem(adap, "edc1", MEM_EDC1, EDRAM_SIZE_GET(size));
}
if (is_t4(adap->params.chip)) {
size = t4_read_reg(adap, MA_EXT_MEMORY_BAR);
if (i & EXT_MEM_ENABLE)
add_debugfs_mem(adap, "mc", MEM_MC,
EXT_MEM_SIZE_GET(size));
} else {
if (i & EXT_MEM_ENABLE) {
size = t4_read_reg(adap, MA_EXT_MEMORY_BAR);
add_debugfs_mem(adap, "mc0", MEM_MC0,
EXT_MEM_SIZE_GET(size));
}
if (i & EXT_MEM1_ENABLE) {
size = t4_read_reg(adap, MA_EXT_MEMORY1_BAR);
add_debugfs_mem(adap, "mc1", MEM_MC1,
EXT_MEM_SIZE_GET(size));
}
}
return 0;
}
/*
* This file is part of the Chelsio T4 Ethernet driver for Linux.
*
* Copyright (c) 2003-2014 Chelsio Communications, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __CXGB4_DEBUGFS_H
#define __CXGB4_DEBUGFS_H
#include <linux/export.h>
struct t4_debugfs_entry {
const char *name;
const struct file_operations *ops;
mode_t mode;
unsigned char data;
};
int t4_setup_debugfs(struct adapter *adap);
void add_debugfs_files(struct adapter *adap,
struct t4_debugfs_entry *files,
unsigned int nfiles);
#endif
......@@ -68,6 +68,7 @@
#include "t4_msg.h"
#include "t4fw_api.h"
#include "cxgb4_dcb.h"
#include "cxgb4_debugfs.h"
#include "l2t.h"
#include <../drivers/net/bonding/bonding.h>
......@@ -1287,7 +1288,7 @@ void *t4_alloc_mem(size_t size)
/*
* Free memory allocated through alloc_mem().
*/
static void t4_free_mem(void *addr)
void t4_free_mem(void *addr)
{
if (is_vmalloc_addr(addr))
vfree(addr);
......@@ -3127,102 +3128,14 @@ static const struct ethtool_ops cxgb_ethtool_ops = {
.flash_device = set_flash,
};
/*
* debugfs support
*/
static ssize_t mem_read(struct file *file, char __user *buf, size_t count,
loff_t *ppos)
{
loff_t pos = *ppos;
loff_t avail = file_inode(file)->i_size;
unsigned int mem = (uintptr_t)file->private_data & 3;
struct adapter *adap = file->private_data - mem;
__be32 *data;
int ret;
if (pos < 0)
return -EINVAL;
if (pos >= avail)
return 0;
if (count > avail - pos)
count = avail - pos;
data = t4_alloc_mem(count);
if (!data)
return -ENOMEM;
spin_lock(&adap->win0_lock);
ret = t4_memory_rw(adap, 0, mem, pos, count, data, T4_MEMORY_READ);
spin_unlock(&adap->win0_lock);
if (ret) {
t4_free_mem(data);
return ret;
}
ret = copy_to_user(buf, data, count);
t4_free_mem(data);
if (ret)
return -EFAULT;
*ppos = pos + count;
return count;
}
static const struct file_operations mem_debugfs_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = mem_read,
.llseek = default_llseek,
};
static void add_debugfs_mem(struct adapter *adap, const char *name,
unsigned int idx, unsigned int size_mb)
{
struct dentry *de;
de = debugfs_create_file(name, S_IRUSR, adap->debugfs_root,
(void *)adap + idx, &mem_debugfs_fops);
if (de && de->d_inode)
de->d_inode->i_size = size_mb << 20;
}
static int setup_debugfs(struct adapter *adap)
{
int i;
u32 size;
if (IS_ERR_OR_NULL(adap->debugfs_root))
return -1;
i = t4_read_reg(adap, MA_TARGET_MEM_ENABLE);
if (i & EDRAM0_ENABLE) {
size = t4_read_reg(adap, MA_EDRAM0_BAR);
add_debugfs_mem(adap, "edc0", MEM_EDC0, EDRAM_SIZE_GET(size));
}
if (i & EDRAM1_ENABLE) {
size = t4_read_reg(adap, MA_EDRAM1_BAR);
add_debugfs_mem(adap, "edc1", MEM_EDC1, EDRAM_SIZE_GET(size));
}
if (is_t4(adap->params.chip)) {
size = t4_read_reg(adap, MA_EXT_MEMORY_BAR);
if (i & EXT_MEM_ENABLE)
add_debugfs_mem(adap, "mc", MEM_MC,
EXT_MEM_SIZE_GET(size));
} else {
if (i & EXT_MEM_ENABLE) {
size = t4_read_reg(adap, MA_EXT_MEMORY_BAR);
add_debugfs_mem(adap, "mc0", MEM_MC0,
EXT_MEM_SIZE_GET(size));
}
if (i & EXT_MEM1_ENABLE) {
size = t4_read_reg(adap, MA_EXT_MEMORY1_BAR);
add_debugfs_mem(adap, "mc1", MEM_MC1,
EXT_MEM_SIZE_GET(size));
}
}
if (adap->l2t)
debugfs_create_file("l2t", S_IRUSR, adap->debugfs_root, adap,
&t4_l2t_fops);
#ifdef CONFIG_DEBUG_FS
t4_setup_debugfs(adap);
#endif
return 0;
}
......
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