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net: dsa: mv88e6xxx: add port state setter 

Add the port STP state setter to the port files.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vivien Didelot 2016-11-04 03:23:27 +01:00 committed by David S. Miller
parent 18abed211c
commit e28def3329
3 changed files with 37 additions and 45 deletions
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49
drivers/net/dsa/mv88e6xxx/chip.c
View File

@ -1215,41 +1215,6 @@ static int _mv88e6xxx_atu_remove(struct mv88e6xxx_chip *chip, u16 fid,
return _mv88e6xxx_atu_move(chip, fid, port, 0x0f, static_too);
}
static const char * const mv88e6xxx_port_state_names[] = {
[PORT_CONTROL_STATE_DISABLED] = "Disabled",
[PORT_CONTROL_STATE_BLOCKING] = "Blocking/Listening",
[PORT_CONTROL_STATE_LEARNING] = "Learning",
[PORT_CONTROL_STATE_FORWARDING] = "Forwarding",
};
static int _mv88e6xxx_port_state(struct mv88e6xxx_chip *chip, int port,
u8 state)
{
struct dsa_switch *ds = chip->ds;
u16 reg;
int err;
u8 oldstate;
err = mv88e6xxx_port_read(chip, port, PORT_CONTROL, &reg);
if (err)
return err;
oldstate = reg & PORT_CONTROL_STATE_MASK;
reg &= ~PORT_CONTROL_STATE_MASK;
reg |= state;
err = mv88e6xxx_port_write(chip, port, PORT_CONTROL, reg);
if (err)
return err;
netdev_dbg(ds->ports[port].netdev, "PortState %s (was %s)\n",
mv88e6xxx_port_state_names[state],
mv88e6xxx_port_state_names[oldstate]);
return 0;
}
static int _mv88e6xxx_port_based_vlan_map(struct mv88e6xxx_chip *chip, int port)
{
struct net_device *bridge = chip->ports[port].bridge_dev;
@ -1313,13 +1278,11 @@ static void mv88e6xxx_port_stp_state_set(struct dsa_switch *ds, int port,
}
mutex_lock(&chip->reg_lock);
err = _mv88e6xxx_port_state(chip, port, stp_state);
err = mv88e6xxx_port_set_state(chip, port, stp_state);
mutex_unlock(&chip->reg_lock);
if (err)
netdev_err(ds->ports[port].netdev,
"failed to update state to %s\n",
mv88e6xxx_port_state_names[stp_state]);
netdev_err(ds->ports[port].netdev, "failed to update state\n");
}
static void mv88e6xxx_port_fast_age(struct dsa_switch *ds, int port)
@ -2526,12 +2489,8 @@ static int mv88e6xxx_switch_reset(struct mv88e6xxx_chip *chip)
/* Set all ports to the disabled state. */
for (i = 0; i < mv88e6xxx_num_ports(chip); i++) {
err = mv88e6xxx_port_read(chip, i, PORT_CONTROL, &reg);
if (err)
return err;
err = mv88e6xxx_port_write(chip, i, PORT_CONTROL,
reg & 0xfffc);
err = mv88e6xxx_port_set_state(chip, i,
PORT_CONTROL_STATE_DISABLED);
if (err)
return err;
}

31
drivers/net/dsa/mv88e6xxx/port.c
View File

@ -29,3 +29,34 @@ int mv88e6xxx_port_write(struct mv88e6xxx_chip *chip, int port, int reg,
return mv88e6xxx_write(chip, addr, reg, val);
}
/* Offset 0x04: Port Control Register */
static const char * const mv88e6xxx_port_state_names[] = {
[PORT_CONTROL_STATE_DISABLED] = "Disabled",
[PORT_CONTROL_STATE_BLOCKING] = "Blocking/Listening",
[PORT_CONTROL_STATE_LEARNING] = "Learning",
[PORT_CONTROL_STATE_FORWARDING] = "Forwarding",
};
int mv88e6xxx_port_set_state(struct mv88e6xxx_chip *chip, int port, u8 state)
{
u16 reg;
int err;
err = mv88e6xxx_port_read(chip, port, PORT_CONTROL, &reg);
if (err)
return err;
reg &= ~PORT_CONTROL_STATE_MASK;
reg |= state;
err = mv88e6xxx_port_write(chip, port, PORT_CONTROL, reg);
if (err)
return err;
netdev_dbg(chip->ds->ports[port].netdev, "PortState set to %s\n",
mv88e6xxx_port_state_names[state]);
return 0;
}

2
drivers/net/dsa/mv88e6xxx/port.h
View File

@ -21,4 +21,6 @@ int mv88e6xxx_port_read(struct mv88e6xxx_chip *chip, int port, int reg,
int mv88e6xxx_port_write(struct mv88e6xxx_chip *chip, int port, int reg,
u16 val);
int mv88e6xxx_port_set_state(struct mv88e6xxx_chip *chip, int port, u8 state);
#endif /* _MV88E6XXX_PORT_H */