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net: dsa: mv88e6xxx: rework pause limit operation 

All Marvell chips supporting Pause frames limiting use 1-byte value for
input and output.

Old chips have both bytes adjacent in a 16-bit register. New ones have
an indirect table using 8-bit data.

The mv88e6xxx library functions (such as in port.c) must not contain
driver logic, but only generic helpers. This patch changes the
port_pause_config operation for port_pause_limit taking two u8 arguments
for input and output limits. There is no functional changes.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
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 2017-06-08 18:34:12 -04:00 committed by David S. Miller
parent fa8d117960
commit 0898432cc2
4 changed files with 37 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

48
drivers/net/dsa/mv88e6xxx/chip.c
View File

@ -1901,8 +1901,8 @@ static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port)
if (err)
return err;
if (chip->info->ops->port_pause_config) {
err = chip->info->ops->port_pause_config(chip, port);
if (chip->info->ops->port_pause_limit) {
err = chip->info->ops->port_pause_limit(chip, port, 0, 0);
if (err)
return err;
}
@ -2362,7 +2362,7 @@ static const struct mv88e6xxx_ops mv88e6085_ops = {
.port_set_egress_floods = mv88e6352_port_set_egress_floods,
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
.port_pause_config = mv88e6097_port_pause_config,
.port_pause_limit = mv88e6097_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6xxx_g1_stats_snapshot,
@ -2417,7 +2417,7 @@ static const struct mv88e6xxx_ops mv88e6097_ops = {
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_jumbo_config = mv88e6165_port_jumbo_config,
.port_egress_rate_limiting = mv88e6095_port_egress_rate_limiting,
.port_pause_config = mv88e6097_port_pause_config,
.port_pause_limit = mv88e6097_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6xxx_g1_stats_snapshot,
@ -2473,7 +2473,7 @@ static const struct mv88e6xxx_ops mv88e6131_ops = {
.port_set_upstream_port = mv88e6095_port_set_upstream_port,
.port_jumbo_config = mv88e6165_port_jumbo_config,
.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
.port_pause_config = mv88e6097_port_pause_config,
.port_pause_limit = mv88e6097_port_pause_limit,
.stats_snapshot = mv88e6xxx_g1_stats_snapshot,
.stats_get_sset_count = mv88e6095_stats_get_sset_count,
.stats_get_strings = mv88e6095_stats_get_strings,
@ -2506,7 +2506,7 @@ static const struct mv88e6xxx_ops mv88e6141_ops = {
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_jumbo_config = mv88e6165_port_jumbo_config,
.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
.port_pause_config = mv88e6097_port_pause_config,
.port_pause_limit = mv88e6097_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6390_g1_stats_snapshot,
@ -2536,7 +2536,7 @@ static const struct mv88e6xxx_ops mv88e6161_ops = {
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_jumbo_config = mv88e6165_port_jumbo_config,
.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
.port_pause_config = mv88e6097_port_pause_config,
.port_pause_limit = mv88e6097_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6320_g1_stats_snapshot,
@ -2590,7 +2590,7 @@ static const struct mv88e6xxx_ops mv88e6171_ops = {
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_jumbo_config = mv88e6165_port_jumbo_config,
.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
.port_pause_config = mv88e6097_port_pause_config,
.port_pause_limit = mv88e6097_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6320_g1_stats_snapshot,
@ -2623,7 +2623,7 @@ static const struct mv88e6xxx_ops mv88e6172_ops = {
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_jumbo_config = mv88e6165_port_jumbo_config,
.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
.port_pause_config = mv88e6097_port_pause_config,
.port_pause_limit = mv88e6097_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6320_g1_stats_snapshot,
@ -2655,7 +2655,7 @@ static const struct mv88e6xxx_ops mv88e6175_ops = {
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_jumbo_config = mv88e6165_port_jumbo_config,
.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
.port_pause_config = mv88e6097_port_pause_config,
.port_pause_limit = mv88e6097_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6320_g1_stats_snapshot,
@ -2688,7 +2688,7 @@ static const struct mv88e6xxx_ops mv88e6176_ops = {
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_jumbo_config = mv88e6165_port_jumbo_config,
.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
.port_pause_config = mv88e6097_port_pause_config,
.port_pause_limit = mv88e6097_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6320_g1_stats_snapshot,
@ -2747,7 +2747,7 @@ static const struct mv88e6xxx_ops mv88e6190_ops = {
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
.port_set_egress_floods = mv88e6352_port_set_egress_floods,
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_pause_config = mv88e6390_port_pause_config,
.port_pause_limit = mv88e6390_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6390_g1_stats_snapshot,
@ -2780,7 +2780,7 @@ static const struct mv88e6xxx_ops mv88e6190x_ops = {
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
.port_set_egress_floods = mv88e6352_port_set_egress_floods,
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_pause_config = mv88e6390_port_pause_config,
.port_pause_limit = mv88e6390_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6390_g1_stats_snapshot,
@ -2813,7 +2813,7 @@ static const struct mv88e6xxx_ops mv88e6191_ops = {
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
.port_set_egress_floods = mv88e6352_port_set_egress_floods,
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_pause_config = mv88e6390_port_pause_config,
.port_pause_limit = mv88e6390_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6390_g1_stats_snapshot,
@ -2848,7 +2848,7 @@ static const struct mv88e6xxx_ops mv88e6240_ops = {
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_jumbo_config = mv88e6165_port_jumbo_config,
.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
.port_pause_config = mv88e6097_port_pause_config,
.port_pause_limit = mv88e6097_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6320_g1_stats_snapshot,
@ -2880,7 +2880,7 @@ static const struct mv88e6xxx_ops mv88e6290_ops = {
.port_set_frame_mode = mv88e6351_port_set_frame_mode,
.port_set_egress_floods = mv88e6352_port_set_egress_floods,
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_pause_config = mv88e6390_port_pause_config,
.port_pause_limit = mv88e6390_port_pause_limit,
.port_set_cmode = mv88e6390x_port_set_cmode,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
@ -2915,7 +2915,7 @@ static const struct mv88e6xxx_ops mv88e6320_ops = {
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_jumbo_config = mv88e6165_port_jumbo_config,
.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
.port_pause_config = mv88e6097_port_pause_config,
.port_pause_limit = mv88e6097_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6320_g1_stats_snapshot,
@ -2946,7 +2946,7 @@ static const struct mv88e6xxx_ops mv88e6321_ops = {
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_jumbo_config = mv88e6165_port_jumbo_config,
.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
.port_pause_config = mv88e6097_port_pause_config,
.port_pause_limit = mv88e6097_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6320_g1_stats_snapshot,
@ -2977,7 +2977,7 @@ static const struct mv88e6xxx_ops mv88e6341_ops = {
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_jumbo_config = mv88e6165_port_jumbo_config,
.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
.port_pause_config = mv88e6097_port_pause_config,
.port_pause_limit = mv88e6097_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6390_g1_stats_snapshot,
@ -3008,7 +3008,7 @@ static const struct mv88e6xxx_ops mv88e6350_ops = {
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_jumbo_config = mv88e6165_port_jumbo_config,
.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
.port_pause_config = mv88e6097_port_pause_config,
.port_pause_limit = mv88e6097_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6320_g1_stats_snapshot,
@ -3039,7 +3039,7 @@ static const struct mv88e6xxx_ops mv88e6351_ops = {
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_jumbo_config = mv88e6165_port_jumbo_config,
.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
.port_pause_config = mv88e6097_port_pause_config,
.port_pause_limit = mv88e6097_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6320_g1_stats_snapshot,
@ -3072,7 +3072,7 @@ static const struct mv88e6xxx_ops mv88e6352_ops = {
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_jumbo_config = mv88e6165_port_jumbo_config,
.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
.port_pause_config = mv88e6097_port_pause_config,
.port_pause_limit = mv88e6097_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6320_g1_stats_snapshot,
@ -3106,7 +3106,7 @@ static const struct mv88e6xxx_ops mv88e6390_ops = {
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_jumbo_config = mv88e6165_port_jumbo_config,
.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
.port_pause_config = mv88e6390_port_pause_config,
.port_pause_limit = mv88e6390_port_pause_limit,
.port_set_cmode = mv88e6390x_port_set_cmode,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
@ -3142,7 +3142,7 @@ static const struct mv88e6xxx_ops mv88e6390x_ops = {
.port_set_ether_type = mv88e6351_port_set_ether_type,
.port_jumbo_config = mv88e6165_port_jumbo_config,
.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
.port_pause_config = mv88e6390_port_pause_config,
.port_pause_limit = mv88e6390_port_pause_limit,
.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.stats_snapshot = mv88e6390_g1_stats_snapshot,

3
drivers/net/dsa/mv88e6xxx/chip.h
View File

@ -425,7 +425,8 @@ struct mv88e6xxx_ops {
int (*port_jumbo_config)(struct mv88e6xxx_chip *chip, int port);
int (*port_egress_rate_limiting)(struct mv88e6xxx_chip *chip, int port);
int (*port_pause_config)(struct mv88e6xxx_chip *chip, int port);
int (*port_pause_limit)(struct mv88e6xxx_chip *chip, int port, u8 in,
u8 out);
int (*port_disable_learn_limit)(struct mv88e6xxx_chip *chip, int port);
int (*port_disable_pri_override)(struct mv88e6xxx_chip *chip, int port);

12
drivers/net/dsa/mv88e6xxx/port.c
View File

@ -376,22 +376,24 @@ int mv88e6xxx_port_get_cmode(struct mv88e6xxx_chip *chip, int port, u8 *cmode)
* the remote end or the period of time that this port can pause the
* remote end.
*/
int mv88e6097_port_pause_config(struct mv88e6xxx_chip *chip, int port)
int mv88e6097_port_pause_limit(struct mv88e6xxx_chip *chip, int port, u8 in,
u8 out)
{
return mv88e6xxx_port_write(chip, port, PORT_PAUSE_CTRL, 0x0000);
return mv88e6xxx_port_write(chip, port, PORT_PAUSE_CTRL, out << 8 | in);
}
int mv88e6390_port_pause_config(struct mv88e6xxx_chip *chip, int port)
int mv88e6390_port_pause_limit(struct mv88e6xxx_chip *chip, int port, u8 in,
u8 out)
{
int err;
err = mv88e6xxx_port_write(chip, port, PORT_PAUSE_CTRL,
PORT_FLOW_CTRL_LIMIT_IN | 0);
PORT_FLOW_CTRL_LIMIT_IN | in);
if (err)
return err;
return mv88e6xxx_port_write(chip, port, PORT_PAUSE_CTRL,
PORT_FLOW_CTRL_LIMIT_OUT | 0);
PORT_FLOW_CTRL_LIMIT_OUT | out);
}
/* Offset 0x04: Port Control Register */

6
drivers/net/dsa/mv88e6xxx/port.h
View File

@ -228,8 +228,10 @@ int mv88e6xxx_port_set_message_port(struct mv88e6xxx_chip *chip, int port,
int mv88e6165_port_jumbo_config(struct mv88e6xxx_chip *chip, int port);
int mv88e6095_port_egress_rate_limiting(struct mv88e6xxx_chip *chip, int port);
int mv88e6097_port_egress_rate_limiting(struct mv88e6xxx_chip *chip, int port);
int mv88e6097_port_pause_config(struct mv88e6xxx_chip *chip, int port);
int mv88e6390_port_pause_config(struct mv88e6xxx_chip *chip, int port);
int mv88e6097_port_pause_limit(struct mv88e6xxx_chip *chip, int port, u8 in,
u8 out);
int mv88e6390_port_pause_limit(struct mv88e6xxx_chip *chip, int port, u8 in,
u8 out);
int mv88e6390x_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
phy_interface_t mode);
int mv88e6xxx_port_get_cmode(struct mv88e6xxx_chip *chip, int port, u8 *cmode);