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net: dsa: mv88e6xxx: combine port_set_speed and port_set_duplex
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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: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Russell King authored and David S. Miller committed Mar 16, 2020
1 parent 7e0e624 commit f365c6f
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Showing 4 changed files with 107 additions and 145 deletions.
103 changes: 33 additions & 70 deletions drivers/net/dsa/mv88e6xxx/chip.c
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Original file line number Diff line number Diff line change
Expand Up @@ -452,8 +452,9 @@ static int mv88e6xxx_port_setup_mac(struct mv88e6xxx_chip *chip, int port,
if (err)
return err;

if (chip->info->ops->port_set_speed) {
err = chip->info->ops->port_set_speed(chip, port, speed);
if (chip->info->ops->port_set_speed_duplex) {
err = chip->info->ops->port_set_speed_duplex(chip, port,
speed, duplex);
if (err && err != -EOPNOTSUPP)
goto restore_link;
}
Expand All @@ -467,12 +468,6 @@ static int mv88e6xxx_port_setup_mac(struct mv88e6xxx_chip *chip, int port,
goto restore_link;
}

if (chip->info->ops->port_set_duplex) {
err = chip->info->ops->port_set_duplex(chip, port, duplex);
if (err && err != -EOPNOTSUPP)
goto restore_link;
}

err = mv88e6xxx_port_config_interface(chip, port, mode);
restore_link:
if (chip->info->ops->port_set_link(chip, port, link))
Expand Down Expand Up @@ -762,14 +757,9 @@ static void mv88e6xxx_mac_link_up(struct dsa_switch *ds, int port,
if (err)
goto error;

if (ops->port_set_speed) {
err = ops->port_set_speed(chip, port, speed);
if (err && err != -EOPNOTSUPP)
goto error;
}

if (ops->port_set_duplex) {
err = ops->port_set_duplex(chip, port, duplex);
if (ops->port_set_speed_duplex) {
err = ops->port_set_speed_duplex(chip, port,
speed, duplex);
if (err && err != -EOPNOTSUPP)
goto error;
}
Expand Down Expand Up @@ -3412,8 +3402,7 @@ static const struct mv88e6xxx_ops mv88e6085_ops = {
.phy_read = mv88e6185_phy_ppu_read,
.phy_write = mv88e6185_phy_ppu_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_speed = mv88e6185_port_set_speed,
.port_set_speed_duplex = mv88e6185_port_set_speed_duplex,
.port_tag_remap = mv88e6095_port_tag_remap,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
.port_set_egress_floods = mv88e6352_port_set_egress_floods,
Expand Down Expand Up @@ -3452,8 +3441,7 @@ static const struct mv88e6xxx_ops mv88e6095_ops = {
.phy_read = mv88e6185_phy_ppu_read,
.phy_write = mv88e6185_phy_ppu_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_speed = mv88e6185_port_set_speed,
.port_set_speed_duplex = mv88e6185_port_set_speed_duplex,
.port_set_frame_mode = mv88e6085_port_set_frame_mode,
.port_set_egress_floods = mv88e6185_port_set_egress_floods,
.port_set_upstream_port = mv88e6095_port_set_upstream_port,
Expand Down Expand Up @@ -3483,8 +3471,7 @@ static const struct mv88e6xxx_ops mv88e6097_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_speed = mv88e6185_port_set_speed,
.port_set_speed_duplex = mv88e6185_port_set_speed_duplex,
.port_tag_remap = mv88e6095_port_tag_remap,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
.port_set_egress_floods = mv88e6352_port_set_egress_floods,
Expand Down Expand Up @@ -3523,8 +3510,7 @@ static const struct mv88e6xxx_ops mv88e6123_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_speed = mv88e6185_port_set_speed,
.port_set_speed_duplex = mv88e6185_port_set_speed_duplex,
.port_set_frame_mode = mv88e6085_port_set_frame_mode,
.port_set_egress_floods = mv88e6352_port_set_egress_floods,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
Expand Down Expand Up @@ -3558,8 +3544,7 @@ static const struct mv88e6xxx_ops mv88e6131_ops = {
.phy_read = mv88e6185_phy_ppu_read,
.phy_write = mv88e6185_phy_ppu_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_speed = mv88e6185_port_set_speed,
.port_set_speed_duplex = mv88e6185_port_set_speed_duplex,
.port_tag_remap = mv88e6095_port_tag_remap,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
.port_set_egress_floods = mv88e6185_port_set_egress_floods,
Expand Down Expand Up @@ -3601,9 +3586,8 @@ static const struct mv88e6xxx_ops mv88e6141_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
.port_set_speed = mv88e6341_port_set_speed,
.port_set_speed_duplex = mv88e6341_port_set_speed_duplex,
.port_max_speed_mode = mv88e6341_port_max_speed_mode,
.port_tag_remap = mv88e6095_port_tag_remap,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
Expand Down Expand Up @@ -3654,8 +3638,7 @@ static const struct mv88e6xxx_ops mv88e6161_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_speed = mv88e6185_port_set_speed,
.port_set_speed_duplex = mv88e6185_port_set_speed_duplex,
.port_tag_remap = mv88e6095_port_tag_remap,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
.port_set_egress_floods = mv88e6352_port_set_egress_floods,
Expand Down Expand Up @@ -3697,8 +3680,7 @@ static const struct mv88e6xxx_ops mv88e6165_ops = {
.phy_read = mv88e6165_phy_read,
.phy_write = mv88e6165_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_speed = mv88e6185_port_set_speed,
.port_set_speed_duplex = mv88e6185_port_set_speed_duplex,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.port_link_state = mv88e6352_port_link_state,
Expand Down Expand Up @@ -3733,9 +3715,8 @@ static const struct mv88e6xxx_ops mv88e6171_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
.port_set_speed = mv88e6185_port_set_speed,
.port_set_speed_duplex = mv88e6185_port_set_speed_duplex,
.port_tag_remap = mv88e6095_port_tag_remap,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
.port_set_egress_floods = mv88e6352_port_set_egress_floods,
Expand Down Expand Up @@ -3777,9 +3758,8 @@ static const struct mv88e6xxx_ops mv88e6172_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
.port_set_speed = mv88e6352_port_set_speed,
.port_set_speed_duplex = mv88e6352_port_set_speed_duplex,
.port_tag_remap = mv88e6095_port_tag_remap,
.port_set_policy = mv88e6352_port_set_policy,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
Expand Down Expand Up @@ -3830,9 +3810,8 @@ static const struct mv88e6xxx_ops mv88e6175_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
.port_set_speed = mv88e6185_port_set_speed,
.port_set_speed_duplex = mv88e6185_port_set_speed_duplex,
.port_tag_remap = mv88e6095_port_tag_remap,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
.port_set_egress_floods = mv88e6352_port_set_egress_floods,
Expand Down Expand Up @@ -3874,9 +3853,8 @@ static const struct mv88e6xxx_ops mv88e6176_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
.port_set_speed = mv88e6352_port_set_speed,
.port_set_speed_duplex = mv88e6352_port_set_speed_duplex,
.port_tag_remap = mv88e6095_port_tag_remap,
.port_set_policy = mv88e6352_port_set_policy,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
Expand Down Expand Up @@ -3929,8 +3907,7 @@ static const struct mv88e6xxx_ops mv88e6185_ops = {
.phy_read = mv88e6185_phy_ppu_read,
.phy_write = mv88e6185_phy_ppu_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_speed = mv88e6185_port_set_speed,
.port_set_speed_duplex = mv88e6185_port_set_speed_duplex,
.port_set_frame_mode = mv88e6085_port_set_frame_mode,
.port_set_egress_floods = mv88e6185_port_set_egress_floods,
.port_egress_rate_limiting = mv88e6095_port_egress_rate_limiting,
Expand Down Expand Up @@ -3967,9 +3944,8 @@ static const struct mv88e6xxx_ops mv88e6190_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
.port_set_speed = mv88e6390_port_set_speed,
.port_set_speed_duplex = mv88e6390_port_set_speed_duplex,
.port_max_speed_mode = mv88e6390_port_max_speed_mode,
.port_tag_remap = mv88e6390_port_tag_remap,
.port_set_policy = mv88e6352_port_set_policy,
Expand Down Expand Up @@ -4028,9 +4004,8 @@ static const struct mv88e6xxx_ops mv88e6190x_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
.port_set_speed = mv88e6390x_port_set_speed,
.port_set_speed_duplex = mv88e6390x_port_set_speed_duplex,
.port_max_speed_mode = mv88e6390x_port_max_speed_mode,
.port_tag_remap = mv88e6390_port_tag_remap,
.port_set_policy = mv88e6352_port_set_policy,
Expand Down Expand Up @@ -4089,9 +4064,8 @@ static const struct mv88e6xxx_ops mv88e6191_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
.port_set_speed = mv88e6390_port_set_speed,
.port_set_speed_duplex = mv88e6390_port_set_speed_duplex,
.port_max_speed_mode = mv88e6390_port_max_speed_mode,
.port_tag_remap = mv88e6390_port_tag_remap,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
Expand Down Expand Up @@ -4151,9 +4125,8 @@ static const struct mv88e6xxx_ops mv88e6240_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
.port_set_speed = mv88e6352_port_set_speed,
.port_set_speed_duplex = mv88e6352_port_set_speed_duplex,
.port_tag_remap = mv88e6095_port_tag_remap,
.port_set_policy = mv88e6352_port_set_policy,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
Expand Down Expand Up @@ -4211,9 +4184,8 @@ static const struct mv88e6xxx_ops mv88e6250_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
.port_set_speed = mv88e6250_port_set_speed,
.port_set_speed_duplex = mv88e6250_port_set_speed_duplex,
.port_tag_remap = mv88e6095_port_tag_remap,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
.port_set_egress_floods = mv88e6352_port_set_egress_floods,
Expand Down Expand Up @@ -4250,9 +4222,8 @@ static const struct mv88e6xxx_ops mv88e6290_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
.port_set_speed = mv88e6390_port_set_speed,
.port_set_speed_duplex = mv88e6390_port_set_speed_duplex,
.port_max_speed_mode = mv88e6390_port_max_speed_mode,
.port_tag_remap = mv88e6390_port_tag_remap,
.port_set_policy = mv88e6352_port_set_policy,
Expand Down Expand Up @@ -4314,8 +4285,7 @@ static const struct mv88e6xxx_ops mv88e6320_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_speed = mv88e6185_port_set_speed,
.port_set_speed_duplex = mv88e6185_port_set_speed_duplex,
.port_tag_remap = mv88e6095_port_tag_remap,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
.port_set_egress_floods = mv88e6352_port_set_egress_floods,
Expand Down Expand Up @@ -4358,8 +4328,7 @@ static const struct mv88e6xxx_ops mv88e6321_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_speed = mv88e6185_port_set_speed,
.port_set_speed_duplex = mv88e6185_port_set_speed_duplex,
.port_tag_remap = mv88e6095_port_tag_remap,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
.port_set_egress_floods = mv88e6352_port_set_egress_floods,
Expand Down Expand Up @@ -4400,9 +4369,8 @@ static const struct mv88e6xxx_ops mv88e6341_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
.port_set_speed = mv88e6341_port_set_speed,
.port_set_speed_duplex = mv88e6341_port_set_speed_duplex,
.port_max_speed_mode = mv88e6341_port_max_speed_mode,
.port_tag_remap = mv88e6095_port_tag_remap,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
Expand Down Expand Up @@ -4455,9 +4423,8 @@ static const struct mv88e6xxx_ops mv88e6350_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
.port_set_speed = mv88e6185_port_set_speed,
.port_set_speed_duplex = mv88e6185_port_set_speed_duplex,
.port_tag_remap = mv88e6095_port_tag_remap,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
.port_set_egress_floods = mv88e6352_port_set_egress_floods,
Expand Down Expand Up @@ -4497,9 +4464,8 @@ static const struct mv88e6xxx_ops mv88e6351_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
.port_set_speed = mv88e6185_port_set_speed,
.port_set_speed_duplex = mv88e6185_port_set_speed_duplex,
.port_tag_remap = mv88e6095_port_tag_remap,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
.port_set_egress_floods = mv88e6352_port_set_egress_floods,
Expand Down Expand Up @@ -4543,9 +4509,8 @@ static const struct mv88e6xxx_ops mv88e6352_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
.port_set_speed = mv88e6352_port_set_speed,
.port_set_speed_duplex = mv88e6352_port_set_speed_duplex,
.port_tag_remap = mv88e6095_port_tag_remap,
.port_set_policy = mv88e6352_port_set_policy,
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
Expand Down Expand Up @@ -4605,9 +4570,8 @@ static const struct mv88e6xxx_ops mv88e6390_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
.port_set_speed = mv88e6390_port_set_speed,
.port_set_speed_duplex = mv88e6390_port_set_speed_duplex,
.port_max_speed_mode = mv88e6390_port_max_speed_mode,
.port_tag_remap = mv88e6390_port_tag_remap,
.port_set_policy = mv88e6352_port_set_policy,
Expand Down Expand Up @@ -4670,9 +4634,8 @@ static const struct mv88e6xxx_ops mv88e6390x_ops = {
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
.port_set_speed = mv88e6390x_port_set_speed,
.port_set_speed_duplex = mv88e6390x_port_set_speed_duplex,
.port_max_speed_mode = mv88e6390x_port_max_speed_mode,
.port_tag_remap = mv88e6390_port_tag_remap,
.port_set_policy = mv88e6352_port_set_policy,
Expand Down
18 changes: 7 additions & 11 deletions drivers/net/dsa/mv88e6xxx/chip.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -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

Expand All @@ -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);
Expand Down
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