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Commit f365c6f7 authored by Russell King's avatar Russell King Committed by David S. Miller
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net: dsa: mv88e6xxx: combine port_set_speed and port_set_duplex 

Setting the speed independently of duplex makes little sense; the two
parameters result from negotiation or fixed setup, and may have inter-
dependencies. Moreover, they are always controlled via the same
register - having them split means we have to read-modify-write this
register twice.

Combine the two operations into a single port_set_speed_duplex()
operation. Not only is this more efficient, it reduces the size of the
code as well.
Signed-off-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7e0e6243
Expand all Hide whitespace changes
Inline Side-by-side
Showing with 107 additions and 145 deletions
drivers/net/dsa/mv88e6xxx/chip.c
View file @ f365c6f7
This diff is collapsed.
drivers/net/dsa/mv88e6xxx/chip.h
View file @ f365c6f7
......@@ -399,15 +399,6 @@ struct mv88e6xxx_ops {
*/
int (*port_set_link)(struct mv88e6xxx_chip *chip, int port, int link);
#define DUPLEX_UNFORCED -2
/* Port's MAC duplex mode
*
* Use DUPLEX_HALF or DUPLEX_FULL to force half or full duplex,
* or DUPLEX_UNFORCED for normal duplex detection.
*/
int (*port_set_duplex)(struct mv88e6xxx_chip *chip, int port, int dup);
#define PAUSE_ON 1
#define PAUSE_OFF 0
......@@ -417,13 +408,18 @@ struct mv88e6xxx_ops {
#define SPEED_MAX INT_MAX
#define SPEED_UNFORCED -2
#define DUPLEX_UNFORCED -2
/* Port's MAC speed (in Mbps)
/* Port's MAC speed (in Mbps) and MAC duplex mode
*
* Depending on the chip, 10, 100, 200, 1000, 2500, 10000 are valid.
* Use SPEED_UNFORCED for normal detection, SPEED_MAX for max value.
*
* Use DUPLEX_HALF or DUPLEX_FULL to force half or full duplex,
* or DUPLEX_UNFORCED for normal duplex detection.
*/
int (*port_set_speed)(struct mv88e6xxx_chip *chip, int port, int speed);
int (*port_set_speed_duplex)(struct mv88e6xxx_chip *chip, int port,
int speed, int duplex);
/* What interface mode should be used for maximum speed? */
phy_interface_t (*port_max_speed_mode)(int port);
......
drivers/net/dsa/mv88e6xxx/port.c
View file @ f365c6f7
......@@ -162,46 +162,9 @@ int mv88e6xxx_port_set_link(struct mv88e6xxx_chip *chip, int port, int link)
return 0;
}
int mv88e6xxx_port_set_duplex(struct mv88e6xxx_chip *chip, int port, int dup)
{
u16 reg;
int err;
err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_MAC_CTL, &reg);
if (err)
return err;
reg &= ~(MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX |
MV88E6XXX_PORT_MAC_CTL_DUPLEX_FULL);
switch (dup) {
case DUPLEX_HALF:
reg |= MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX;
break;
case DUPLEX_FULL:
reg |= MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX |
MV88E6XXX_PORT_MAC_CTL_DUPLEX_FULL;
break;
case DUPLEX_UNFORCED:
/* normal duplex detection */
break;
default:
return -EOPNOTSUPP;
}
err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_MAC_CTL, reg);
if (err)
return err;
dev_dbg(chip->dev, "p%d: %s %s duplex\n", port,
reg & MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX ? "Force" : "Unforce",
reg & MV88E6XXX_PORT_MAC_CTL_DUPLEX_FULL ? "full" : "half");
return 0;
}
static int mv88e6xxx_port_set_speed(struct mv88e6xxx_chip *chip, int port,
int speed, bool alt_bit, bool force_bit)
static int mv88e6xxx_port_set_speed_duplex(struct mv88e6xxx_chip *chip,
int port, int speed, bool alt_bit,
bool force_bit, int duplex)
{
u16 reg, ctrl;
int err;
......@@ -239,11 +202,29 @@ static int mv88e6xxx_port_set_speed(struct mv88e6xxx_chip *chip, int port,
return -EOPNOTSUPP;
}
switch (duplex) {
case DUPLEX_HALF:
ctrl |= MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX;
break;
case DUPLEX_FULL:
ctrl |= MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX |
MV88E6XXX_PORT_MAC_CTL_DUPLEX_FULL;
break;
case DUPLEX_UNFORCED:
/* normal duplex detection */
break;
default:
return -EOPNOTSUPP;
}
err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_MAC_CTL, &reg);
if (err)
return err;
reg &= ~MV88E6XXX_PORT_MAC_CTL_SPEED_MASK;
reg &= ~(MV88E6XXX_PORT_MAC_CTL_SPEED_MASK |
MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX |
MV88E6XXX_PORT_MAC_CTL_DUPLEX_FULL);
if (alt_bit)
reg &= ~MV88E6390_PORT_MAC_CTL_ALTSPEED;
if (force_bit) {
......@@ -261,12 +242,16 @@ static int mv88e6xxx_port_set_speed(struct mv88e6xxx_chip *chip, int port,
dev_dbg(chip->dev, "p%d: Speed set to %d Mbps\n", port, speed);
else
dev_dbg(chip->dev, "p%d: Speed unforced\n", port);
dev_dbg(chip->dev, "p%d: %s %s duplex\n", port,
reg & MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX ? "Force" : "Unforce",
reg & MV88E6XXX_PORT_MAC_CTL_DUPLEX_FULL ? "full" : "half");
return 0;
}
/* Support 10, 100, 200 Mbps (e.g. 88E6065 family) */
int mv88e6065_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
int mv88e6065_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
int speed, int duplex)
{
if (speed == SPEED_MAX)
speed = 200;
......@@ -275,11 +260,13 @@ int mv88e6065_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
return -EOPNOTSUPP;
/* Setting 200 Mbps on port 0 to 3 selects 100 Mbps */
return mv88e6xxx_port_set_speed(chip, port, speed, false, false);
return mv88e6xxx_port_set_speed_duplex(chip, port, speed, false, false,
duplex);
}
/* Support 10, 100, 1000 Mbps (e.g. 88E6185 family) */
int mv88e6185_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
int mv88e6185_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
int speed, int duplex)
{
if (speed == SPEED_MAX)
speed = 1000;
......@@ -287,11 +274,13 @@ int mv88e6185_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
if (speed == 200 || speed > 1000)
return -EOPNOTSUPP;
return mv88e6xxx_port_set_speed(chip, port, speed, false, false);
return mv88e6xxx_port_set_speed_duplex(chip, port, speed, false, false,
duplex);
}
/* Support 10, 100 Mbps (e.g. 88E6250 family) */
int mv88e6250_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
int mv88e6250_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
int speed, int duplex)
{
if (speed == SPEED_MAX)
speed = 100;
......@@ -299,11 +288,13 @@ int mv88e6250_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
if (speed > 100)
return -EOPNOTSUPP;
return mv88e6xxx_port_set_speed(chip, port, speed, false, false);
return mv88e6xxx_port_set_speed_duplex(chip, port, speed, false, false,
duplex);
}
/* Support 10, 100, 200, 1000, 2500 Mbps (e.g. 88E6341) */
int mv88e6341_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
int mv88e6341_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
int speed, int duplex)
{
if (speed == SPEED_MAX)
speed = port < 5 ? 1000 : 2500;
......@@ -317,7 +308,8 @@ int mv88e6341_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
if (speed == 2500 && port < 5)
return -EOPNOTSUPP;
return mv88e6xxx_port_set_speed(chip, port, speed, !port, true);
return mv88e6xxx_port_set_speed_duplex(chip, port, speed, !port, true,
duplex);
}
phy_interface_t mv88e6341_port_max_speed_mode(int port)
......@@ -329,7 +321,8 @@ phy_interface_t mv88e6341_port_max_speed_mode(int port)
}
/* Support 10, 100, 200, 1000 Mbps (e.g. 88E6352 family) */
int mv88e6352_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
int mv88e6352_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
int speed, int duplex)
{
if (speed == SPEED_MAX)
speed = 1000;
......@@ -340,11 +333,13 @@ int mv88e6352_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
if (speed == 200 && port < 5)
return -EOPNOTSUPP;
return mv88e6xxx_port_set_speed(chip, port, speed, true, false);
return mv88e6xxx_port_set_speed_duplex(chip, port, speed, true, false,
duplex);
}
/* Support 10, 100, 200, 1000, 2500 Mbps (e.g. 88E6390) */
int mv88e6390_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
int mv88e6390_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
int speed, int duplex)
{
if (speed == SPEED_MAX)
speed = port < 9 ? 1000 : 2500;
......@@ -358,7 +353,8 @@ int mv88e6390_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
if (speed == 2500 && port < 9)
return -EOPNOTSUPP;
return mv88e6xxx_port_set_speed(chip, port, speed, true, true);
return mv88e6xxx_port_set_speed_duplex(chip, port, speed, true, true,
duplex);
}
phy_interface_t mv88e6390_port_max_speed_mode(int port)
......@@ -370,7 +366,8 @@ phy_interface_t mv88e6390_port_max_speed_mode(int port)
}
/* Support 10, 100, 200, 1000, 2500, 10000 Mbps (e.g. 88E6190X) */
int mv88e6390x_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
int mv88e6390x_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
int speed, int duplex)
{
if (speed == SPEED_MAX)
speed = port < 9 ? 1000 : 10000;
......@@ -381,7 +378,8 @@ int mv88e6390x_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
if (speed >= 2500 && port < 9)
return -EOPNOTSUPP;
return mv88e6xxx_port_set_speed(chip, port, speed, true, true);
return mv88e6xxx_port_set_speed_duplex(chip, port, speed, true, true,
duplex);
}
phy_interface_t mv88e6390x_port_max_speed_mode(int port)
......
drivers/net/dsa/mv88e6xxx/port.h
View file @ f365c6f7
......@@ -298,15 +298,20 @@ int mv88e6390_port_set_rgmii_delay(struct mv88e6xxx_chip *chip, int port,
int mv88e6xxx_port_set_link(struct mv88e6xxx_chip *chip, int port, int link);
int mv88e6xxx_port_set_duplex(struct mv88e6xxx_chip *chip, int port, int dup);
int mv88e6065_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed);
int mv88e6185_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed);
int mv88e6250_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed);
int mv88e6341_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed);
int mv88e6352_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed);
int mv88e6390_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed);
int mv88e6390x_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed);
int mv88e6065_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
int speed, int duplex);
int mv88e6185_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
int speed, int duplex);
int mv88e6250_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
int speed, int duplex);
int mv88e6341_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
int speed, int duplex);
int mv88e6352_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
int speed, int duplex);
int mv88e6390_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
int speed, int duplex);
int mv88e6390x_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
int speed, int duplex);
phy_interface_t mv88e6341_port_max_speed_mode(int port);
phy_interface_t mv88e6390_port_max_speed_mode(int port);
......
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