diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/dsa/mv88e6xxx.c | 50 | ||||
-rw-r--r-- | drivers/net/dsa/mv88e6xxx.h | 2 |
2 files changed, 52 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c index 39530fa..e6dbc4a 100644 --- a/drivers/net/dsa/mv88e6xxx.c +++ b/drivers/net/dsa/mv88e6xxx.c @@ -8,6 +8,7 @@ * (at your option) any later version. */ +#include <linux/debugfs.h> #include <linux/delay.h> #include <linux/etherdevice.h> #include <linux/if_bridge.h> @@ -16,6 +17,7 @@ #include <linux/module.h> #include <linux/netdevice.h> #include <linux/phy.h> +#include <linux/seq_file.h> #include <net/dsa.h> #include "mv88e6xxx.h" @@ -1601,9 +1603,50 @@ 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, +}; + int mv88e6xxx_setup_common(struct dsa_switch *ds) { struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); + char *name; mutex_init(&ps->smi_mutex); @@ -1613,6 +1656,13 @@ int mv88e6xxx_setup_common(struct dsa_switch *ds) 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); + return 0; } diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h index e10ccdb..5fc291cb 100644 --- a/drivers/net/dsa/mv88e6xxx.h +++ b/drivers/net/dsa/mv88e6xxx.h @@ -339,6 +339,8 @@ struct mv88e6xxx_priv_state { u8 port_state[DSA_MAX_PORTS]; struct work_struct bridge_work; + + struct dentry *dbgfs; }; struct mv88e6xxx_hw_stat { |