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net: dsa: mv88e6xxx: add port state setter

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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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31
drivers/net/dsa/mv88e6xxx/port.c
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@@ -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;
}