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net: dsa: mv88e6xxx: remove debugfs interface
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It is preferable to have a common debugfs interface for DSA or switchdev
instead of a driver specific one. Thus remove the mv88e6xxx debug code.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Vivien Didelot authored and David S. Miller committed Oct 23, 2015
1 parent 998eb80 commit 0a31ada
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Showing 2 changed files with 0 additions and 293 deletions.
291 changes: 0 additions & 291 deletions drivers/net/dsa/mv88e6xxx.c
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,6 @@
* (at your option) any later version.
*/

#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
Expand All @@ -21,7 +20,6 @@
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/phy.h>
#include <linux/seq_file.h>
#include <net/dsa.h>
#include <net/switchdev.h>
#include "mv88e6xxx.h"
Expand Down Expand Up @@ -876,13 +874,6 @@ static int _mv88e6xxx_atu_wait(struct dsa_switch *ds)
GLOBAL_ATU_OP_BUSY);
}

/* Must be called with SMI lock held */
static int _mv88e6xxx_scratch_wait(struct dsa_switch *ds)
{
return _mv88e6xxx_wait(ds, REG_GLOBAL2, GLOBAL2_SCRATCH_MISC,
GLOBAL2_SCRATCH_BUSY);
}

/* Must be called with SMI mutex held */
static int _mv88e6xxx_phy_read_indirect(struct dsa_switch *ds, int addr,
int regnum)
Expand Down Expand Up @@ -2107,298 +2098,16 @@ int mv88e6xxx_setup_ports(struct dsa_switch *ds)
return 0;
}

static int mv88e6xxx_regs_show(struct seq_file *s, void *p)
{
struct dsa_switch *ds = s->private;

struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
int reg, port;

seq_puts(s, " GLOBAL GLOBAL2 ");
for (port = 0 ; port < ps->num_ports; port++)
seq_printf(s, " %2d ", port);
seq_puts(s, "\n");

for (reg = 0; reg < 32; reg++) {
seq_printf(s, "%2x: ", reg);
seq_printf(s, " %4x %4x ",
mv88e6xxx_reg_read(ds, REG_GLOBAL, reg),
mv88e6xxx_reg_read(ds, REG_GLOBAL2, reg));

for (port = 0 ; port < ps->num_ports; port++)
seq_printf(s, "%4x ",
mv88e6xxx_reg_read(ds, REG_PORT(port), reg));
seq_puts(s, "\n");
}

return 0;
}

static int mv88e6xxx_regs_open(struct inode *inode, struct file *file)
{
return single_open(file, mv88e6xxx_regs_show, inode->i_private);
}

static const struct file_operations mv88e6xxx_regs_fops = {
.open = mv88e6xxx_regs_open,
.read = seq_read,
.llseek = no_llseek,
.release = single_release,
.owner = THIS_MODULE,
};

static void mv88e6xxx_atu_show_header(struct seq_file *s)
{
seq_puts(s, "DB T/P Vec State Addr\n");
}

static void mv88e6xxx_atu_show_entry(struct seq_file *s, int dbnum,
unsigned char *addr, int data)
{
bool trunk = !!(data & GLOBAL_ATU_DATA_TRUNK);
int portvec = ((data & GLOBAL_ATU_DATA_PORT_VECTOR_MASK) >>
GLOBAL_ATU_DATA_PORT_VECTOR_SHIFT);
int state = data & GLOBAL_ATU_DATA_STATE_MASK;

seq_printf(s, "%03x %5s %10pb %x %pM\n",
dbnum, (trunk ? "Trunk" : "Port"), &portvec, state, addr);
}

static int mv88e6xxx_atu_show_db(struct seq_file *s, struct dsa_switch *ds,
int dbnum)
{
unsigned char bcast[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
unsigned char addr[6];
int ret, data, state;

ret = _mv88e6xxx_atu_mac_write(ds, bcast);
if (ret < 0)
return ret;

do {
ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_ATU_FID,
dbnum);
if (ret < 0)
return ret;

ret = _mv88e6xxx_atu_cmd(ds, GLOBAL_ATU_OP_GET_NEXT_DB);
if (ret < 0)
return ret;

data = _mv88e6xxx_reg_read(ds, REG_GLOBAL, GLOBAL_ATU_DATA);
if (data < 0)
return data;

state = data & GLOBAL_ATU_DATA_STATE_MASK;
if (state == GLOBAL_ATU_DATA_STATE_UNUSED)
break;
ret = _mv88e6xxx_atu_mac_read(ds, addr);
if (ret < 0)
return ret;
mv88e6xxx_atu_show_entry(s, dbnum, addr, data);
} while (state != GLOBAL_ATU_DATA_STATE_UNUSED);

return 0;
}

static int mv88e6xxx_atu_show(struct seq_file *s, void *p)
{
struct dsa_switch *ds = s->private;
struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
int dbnum;

mv88e6xxx_atu_show_header(s);

for (dbnum = 0; dbnum < 255; dbnum++) {
mutex_lock(&ps->smi_mutex);
mv88e6xxx_atu_show_db(s, ds, dbnum);
mutex_unlock(&ps->smi_mutex);
}

return 0;
}

static int mv88e6xxx_atu_open(struct inode *inode, struct file *file)
{
return single_open(file, mv88e6xxx_atu_show, inode->i_private);
}

static const struct file_operations mv88e6xxx_atu_fops = {
.open = mv88e6xxx_atu_open,
.read = seq_read,
.llseek = no_llseek,
.release = single_release,
.owner = THIS_MODULE,
};

static void mv88e6xxx_stats_show_header(struct seq_file *s,
struct mv88e6xxx_priv_state *ps)
{
int port;

seq_puts(s, " Statistic ");
for (port = 0 ; port < ps->num_ports; port++)
seq_printf(s, "Port %2d ", port);
seq_puts(s, "\n");
}

static int mv88e6xxx_stats_show(struct seq_file *s, void *p)
{
struct dsa_switch *ds = s->private;
struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
struct mv88e6xxx_hw_stat *stats = mv88e6xxx_hw_stats;
int port, stat, max_stats;
uint64_t value;

if (have_sw_in_discards(ds))
max_stats = ARRAY_SIZE(mv88e6xxx_hw_stats);
else
max_stats = ARRAY_SIZE(mv88e6xxx_hw_stats) - 3;

mv88e6xxx_stats_show_header(s, ps);

mutex_lock(&ps->smi_mutex);

for (stat = 0; stat < max_stats; stat++) {
seq_printf(s, "%19s: ", stats[stat].string);
for (port = 0 ; port < ps->num_ports; port++) {
_mv88e6xxx_stats_snapshot(ds, port);
value = _mv88e6xxx_get_ethtool_stat(ds, stat, stats,
port);
seq_printf(s, "%8llu ", value);
}
seq_puts(s, "\n");
}
mutex_unlock(&ps->smi_mutex);

return 0;
}

static int mv88e6xxx_stats_open(struct inode *inode, struct file *file)
{
return single_open(file, mv88e6xxx_stats_show, inode->i_private);
}

static const struct file_operations mv88e6xxx_stats_fops = {
.open = mv88e6xxx_stats_open,
.read = seq_read,
.llseek = no_llseek,
.release = single_release,
.owner = THIS_MODULE,
};

static int mv88e6xxx_device_map_show(struct seq_file *s, void *p)
{
struct dsa_switch *ds = s->private;
struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
int target, ret;

seq_puts(s, "Target Port\n");

mutex_lock(&ps->smi_mutex);
for (target = 0; target < 32; target++) {
ret = _mv88e6xxx_reg_write(
ds, REG_GLOBAL2, GLOBAL2_DEVICE_MAPPING,
target << GLOBAL2_DEVICE_MAPPING_TARGET_SHIFT);
if (ret < 0)
goto out;
ret = _mv88e6xxx_reg_read(ds, REG_GLOBAL2,
GLOBAL2_DEVICE_MAPPING);
seq_printf(s, " %2d %2d\n", target,
ret & GLOBAL2_DEVICE_MAPPING_PORT_MASK);
}
out:
mutex_unlock(&ps->smi_mutex);

return 0;
}

static int mv88e6xxx_device_map_open(struct inode *inode, struct file *file)
{
return single_open(file, mv88e6xxx_device_map_show, inode->i_private);
}

static const struct file_operations mv88e6xxx_device_map_fops = {
.open = mv88e6xxx_device_map_open,
.read = seq_read,
.llseek = no_llseek,
.release = single_release,
.owner = THIS_MODULE,
};

static int mv88e6xxx_scratch_show(struct seq_file *s, void *p)
{
struct dsa_switch *ds = s->private;
struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
int reg, ret;

seq_puts(s, "Register Value\n");

mutex_lock(&ps->smi_mutex);
for (reg = 0; reg < 0x80; reg++) {
ret = _mv88e6xxx_reg_write(
ds, REG_GLOBAL2, GLOBAL2_SCRATCH_MISC,
reg << GLOBAL2_SCRATCH_REGISTER_SHIFT);
if (ret < 0)
goto out;

ret = _mv88e6xxx_scratch_wait(ds);
if (ret < 0)
goto out;

ret = _mv88e6xxx_reg_read(ds, REG_GLOBAL2,
GLOBAL2_SCRATCH_MISC);
seq_printf(s, " %2x %2x\n", reg,
ret & GLOBAL2_SCRATCH_VALUE_MASK);
}
out:
mutex_unlock(&ps->smi_mutex);

return 0;
}

static int mv88e6xxx_scratch_open(struct inode *inode, struct file *file)
{
return single_open(file, mv88e6xxx_scratch_show, inode->i_private);
}

static const struct file_operations mv88e6xxx_scratch_fops = {
.open = mv88e6xxx_scratch_open,
.read = seq_read,
.llseek = no_llseek,
.release = single_release,
.owner = THIS_MODULE,
};

int mv88e6xxx_setup_common(struct dsa_switch *ds)
{
struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
char *name;

mutex_init(&ps->smi_mutex);

ps->id = REG_READ(REG_PORT(0), PORT_SWITCH_ID) & 0xfff0;

INIT_WORK(&ps->bridge_work, mv88e6xxx_bridge_work);

name = kasprintf(GFP_KERNEL, "dsa%d", ds->index);
ps->dbgfs = debugfs_create_dir(name, NULL);
kfree(name);

debugfs_create_file("regs", S_IRUGO, ps->dbgfs, ds,
&mv88e6xxx_regs_fops);

debugfs_create_file("atu", S_IRUGO, ps->dbgfs, ds,
&mv88e6xxx_atu_fops);

debugfs_create_file("stats", S_IRUGO, ps->dbgfs, ds,
&mv88e6xxx_stats_fops);

debugfs_create_file("device_map", S_IRUGO, ps->dbgfs, ds,
&mv88e6xxx_device_map_fops);

debugfs_create_file("scratch", S_IRUGO, ps->dbgfs, ds,
&mv88e6xxx_scratch_fops);
return 0;
}

Expand Down
2 changes: 0 additions & 2 deletions drivers/net/dsa/mv88e6xxx.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -406,8 +406,6 @@ struct mv88e6xxx_priv_state {
u8 port_state[DSA_MAX_PORTS];

struct work_struct bridge_work;

struct dentry *dbgfs;
};

struct mv88e6xxx_hw_stat {
Expand Down

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