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Commit 4bc61b0b authored by David S. Miller's avatar David S. Miller
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Merge branch 'net-dsa-mv88e6xxx-centralize-SERDES-IRQ-handling' 

Vivien Didelot says:

====================
net: dsa: mv88e6xxx: centralize SERDES IRQ handling

Following Marek's work on the abstraction of the SERDES lanes mapping, this
series trades the .serdes_irq_setup and .serdes_irq_free callbacks for new
.serdes_irq_mapping, .serdes_irq_enable and .serdes_irq_status operations.

This has the benefit to limit the various SERDES implementations to simple
register accesses only; centralize the IRQ handling and mutex locking logic;
as well as reducing boilerplate in the driver.
====================
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents b943e033 45de77ff
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Showing with 315 additions and 351 deletions
drivers/net/dsa/mv88e6xxx/chip.c
View file @ 4bc61b0b
...@@ -2054,27 +2054,93 @@ static int mv88e6xxx_setup_egress_floods(struct mv88e6xxx_chip *chip, int port) ...@@ -2054,27 +2054,93 @@ static int mv88e6xxx_setup_egress_floods(struct mv88e6xxx_chip *chip, int port)
return 0; return 0;
} }
static irqreturn_t mv88e6xxx_serdes_irq_thread_fn(int irq, void *dev_id)
{
struct mv88e6xxx_port *mvp = dev_id;
struct mv88e6xxx_chip *chip = mvp->chip;
irqreturn_t ret = IRQ_NONE;
int port = mvp->port;
u8 lane;
mv88e6xxx_reg_lock(chip);
lane = mv88e6xxx_serdes_get_lane(chip, port);
if (lane)
ret = mv88e6xxx_serdes_irq_status(chip, port, lane);
mv88e6xxx_reg_unlock(chip);
return ret;
}
static int mv88e6xxx_serdes_irq_request(struct mv88e6xxx_chip *chip, int port,
u8 lane)
{
struct mv88e6xxx_port *dev_id = &chip->ports[port];
unsigned int irq;
int err;
/* Nothing to request if this SERDES port has no IRQ */
irq = mv88e6xxx_serdes_irq_mapping(chip, port);
if (!irq)
return 0;
/* Requesting the IRQ will trigger IRQ callbacks, so release the lock */
mv88e6xxx_reg_unlock(chip);
err = request_threaded_irq(irq, NULL, mv88e6xxx_serdes_irq_thread_fn,
IRQF_ONESHOT, "mv88e6xxx-serdes", dev_id);
mv88e6xxx_reg_lock(chip);
if (err)
return err;
dev_id->serdes_irq = irq;
return mv88e6xxx_serdes_irq_enable(chip, port, lane);
}
static int mv88e6xxx_serdes_irq_free(struct mv88e6xxx_chip *chip, int port,
u8 lane)
{
struct mv88e6xxx_port *dev_id = &chip->ports[port];
unsigned int irq = dev_id->serdes_irq;
int err;
/* Nothing to free if no IRQ has been requested */
if (!irq)
return 0;
err = mv88e6xxx_serdes_irq_disable(chip, port, lane);
/* Freeing the IRQ will trigger IRQ callbacks, so release the lock */
mv88e6xxx_reg_unlock(chip);
free_irq(irq, dev_id);
mv88e6xxx_reg_lock(chip);
dev_id->serdes_irq = 0;
return err;
}
static int mv88e6xxx_serdes_power(struct mv88e6xxx_chip *chip, int port, static int mv88e6xxx_serdes_power(struct mv88e6xxx_chip *chip, int port,
bool on) bool on)
{ {
u8 lane;
int err; int err;
if (!chip->info->ops->serdes_power) lane = mv88e6xxx_serdes_get_lane(chip, port);
if (!lane)
return 0; return 0;
if (on) { if (on) {
err = chip->info->ops->serdes_power(chip, port, true); err = mv88e6xxx_serdes_power_up(chip, port, lane);
if (err) if (err)
return err; return err;
if (chip->info->ops->serdes_irq_setup) err = mv88e6xxx_serdes_irq_request(chip, port, lane);
err = chip->info->ops->serdes_irq_setup(chip, port);
} else { } else {
if (chip->info->ops->serdes_irq_free && err = mv88e6xxx_serdes_irq_free(chip, port, lane);
chip->ports[port].serdes_irq) if (err)
chip->info->ops->serdes_irq_free(chip, port); return err;
err = chip->info->ops->serdes_power(chip, port, false); err = mv88e6xxx_serdes_power_down(chip, port, lane);
} }
return err; return err;
...@@ -2931,8 +2997,9 @@ static const struct mv88e6xxx_ops mv88e6141_ops = { ...@@ -2931,8 +2997,9 @@ static const struct mv88e6xxx_ops mv88e6141_ops = {
.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge, .vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
.serdes_power = mv88e6390_serdes_power, .serdes_power = mv88e6390_serdes_power,
.serdes_get_lane = mv88e6341_serdes_get_lane, .serdes_get_lane = mv88e6341_serdes_get_lane,
.serdes_irq_setup = mv88e6390_serdes_irq_setup, .serdes_irq_mapping = mv88e6390_serdes_irq_mapping,
.serdes_irq_free = mv88e6390_serdes_irq_free, .serdes_irq_enable = mv88e6390_serdes_irq_enable,
.serdes_irq_status = mv88e6390_serdes_irq_status,
.gpio_ops = &mv88e6352_gpio_ops, .gpio_ops = &mv88e6352_gpio_ops,
.phylink_validate = mv88e6341_phylink_validate, .phylink_validate = mv88e6341_phylink_validate,
}; };
...@@ -3092,6 +3159,7 @@ static const struct mv88e6xxx_ops mv88e6172_ops = { ...@@ -3092,6 +3159,7 @@ static const struct mv88e6xxx_ops mv88e6172_ops = {
.rmu_disable = mv88e6352_g1_rmu_disable, .rmu_disable = mv88e6352_g1_rmu_disable,
.vtu_getnext = mv88e6352_g1_vtu_getnext, .vtu_getnext = mv88e6352_g1_vtu_getnext,
.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge, .vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
.serdes_get_lane = mv88e6352_serdes_get_lane,
.serdes_power = mv88e6352_serdes_power, .serdes_power = mv88e6352_serdes_power,
.gpio_ops = &mv88e6352_gpio_ops, .gpio_ops = &mv88e6352_gpio_ops,
.phylink_validate = mv88e6352_phylink_validate, .phylink_validate = mv88e6352_phylink_validate,
...@@ -3177,9 +3245,11 @@ static const struct mv88e6xxx_ops mv88e6176_ops = { ...@@ -3177,9 +3245,11 @@ static const struct mv88e6xxx_ops mv88e6176_ops = {
.rmu_disable = mv88e6352_g1_rmu_disable, .rmu_disable = mv88e6352_g1_rmu_disable,
.vtu_getnext = mv88e6352_g1_vtu_getnext, .vtu_getnext = mv88e6352_g1_vtu_getnext,
.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge, .vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
.serdes_get_lane = mv88e6352_serdes_get_lane,
.serdes_power = mv88e6352_serdes_power, .serdes_power = mv88e6352_serdes_power,
.serdes_irq_setup = mv88e6352_serdes_irq_setup, .serdes_irq_mapping = mv88e6352_serdes_irq_mapping,
.serdes_irq_free = mv88e6352_serdes_irq_free, .serdes_irq_enable = mv88e6352_serdes_irq_enable,
.serdes_irq_status = mv88e6352_serdes_irq_status,
.gpio_ops = &mv88e6352_gpio_ops, .gpio_ops = &mv88e6352_gpio_ops,
.phylink_validate = mv88e6352_phylink_validate, .phylink_validate = mv88e6352_phylink_validate,
}; };
...@@ -3261,8 +3331,9 @@ static const struct mv88e6xxx_ops mv88e6190_ops = { ...@@ -3261,8 +3331,9 @@ static const struct mv88e6xxx_ops mv88e6190_ops = {
.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge, .vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
.serdes_power = mv88e6390_serdes_power, .serdes_power = mv88e6390_serdes_power,
.serdes_get_lane = mv88e6390_serdes_get_lane, .serdes_get_lane = mv88e6390_serdes_get_lane,
.serdes_irq_setup = mv88e6390_serdes_irq_setup, .serdes_irq_mapping = mv88e6390_serdes_irq_mapping,
.serdes_irq_free = mv88e6390_serdes_irq_free, .serdes_irq_enable = mv88e6390_serdes_irq_enable,
.serdes_irq_status = mv88e6390_serdes_irq_status,
.gpio_ops = &mv88e6352_gpio_ops, .gpio_ops = &mv88e6352_gpio_ops,
.phylink_validate = mv88e6390_phylink_validate, .phylink_validate = mv88e6390_phylink_validate,
}; };
...@@ -3308,8 +3379,9 @@ static const struct mv88e6xxx_ops mv88e6190x_ops = { ...@@ -3308,8 +3379,9 @@ static const struct mv88e6xxx_ops mv88e6190x_ops = {
.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge, .vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
.serdes_power = mv88e6390_serdes_power, .serdes_power = mv88e6390_serdes_power,
.serdes_get_lane = mv88e6390x_serdes_get_lane, .serdes_get_lane = mv88e6390x_serdes_get_lane,
.serdes_irq_setup = mv88e6390_serdes_irq_setup, .serdes_irq_mapping = mv88e6390_serdes_irq_mapping,
.serdes_irq_free = mv88e6390_serdes_irq_free, .serdes_irq_enable = mv88e6390_serdes_irq_enable,
.serdes_irq_status = mv88e6390_serdes_irq_status,
.gpio_ops = &mv88e6352_gpio_ops, .gpio_ops = &mv88e6352_gpio_ops,
.phylink_validate = mv88e6390x_phylink_validate, .phylink_validate = mv88e6390x_phylink_validate,
}; };
...@@ -3355,8 +3427,9 @@ static const struct mv88e6xxx_ops mv88e6191_ops = { ...@@ -3355,8 +3427,9 @@ static const struct mv88e6xxx_ops mv88e6191_ops = {
.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge, .vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
.serdes_power = mv88e6390_serdes_power, .serdes_power = mv88e6390_serdes_power,
.serdes_get_lane = mv88e6390_serdes_get_lane, .serdes_get_lane = mv88e6390_serdes_get_lane,
.serdes_irq_setup = mv88e6390_serdes_irq_setup, .serdes_irq_mapping = mv88e6390_serdes_irq_mapping,
.serdes_irq_free = mv88e6390_serdes_irq_free, .serdes_irq_enable = mv88e6390_serdes_irq_enable,
.serdes_irq_status = mv88e6390_serdes_irq_status,
.avb_ops = &mv88e6390_avb_ops, .avb_ops = &mv88e6390_avb_ops,
.ptp_ops = &mv88e6352_ptp_ops, .ptp_ops = &mv88e6352_ptp_ops,
.phylink_validate = mv88e6390_phylink_validate, .phylink_validate = mv88e6390_phylink_validate,
...@@ -3402,9 +3475,11 @@ static const struct mv88e6xxx_ops mv88e6240_ops = { ...@@ -3402,9 +3475,11 @@ static const struct mv88e6xxx_ops mv88e6240_ops = {
.rmu_disable = mv88e6352_g1_rmu_disable, .rmu_disable = mv88e6352_g1_rmu_disable,
.vtu_getnext = mv88e6352_g1_vtu_getnext, .vtu_getnext = mv88e6352_g1_vtu_getnext,
.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge, .vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
.serdes_get_lane = mv88e6352_serdes_get_lane,
.serdes_power = mv88e6352_serdes_power, .serdes_power = mv88e6352_serdes_power,
.serdes_irq_setup = mv88e6352_serdes_irq_setup, .serdes_irq_mapping = mv88e6352_serdes_irq_mapping,
.serdes_irq_free = mv88e6352_serdes_irq_free, .serdes_irq_enable = mv88e6352_serdes_irq_enable,
.serdes_irq_status = mv88e6352_serdes_irq_status,
.gpio_ops = &mv88e6352_gpio_ops, .gpio_ops = &mv88e6352_gpio_ops,
.avb_ops = &mv88e6352_avb_ops, .avb_ops = &mv88e6352_avb_ops,
.ptp_ops = &mv88e6352_ptp_ops, .ptp_ops = &mv88e6352_ptp_ops,
...@@ -3492,8 +3567,9 @@ static const struct mv88e6xxx_ops mv88e6290_ops = { ...@@ -3492,8 +3567,9 @@ static const struct mv88e6xxx_ops mv88e6290_ops = {
.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge, .vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
.serdes_power = mv88e6390_serdes_power, .serdes_power = mv88e6390_serdes_power,
.serdes_get_lane = mv88e6390_serdes_get_lane, .serdes_get_lane = mv88e6390_serdes_get_lane,
.serdes_irq_setup = mv88e6390_serdes_irq_setup, .serdes_irq_mapping = mv88e6390_serdes_irq_mapping,
.serdes_irq_free = mv88e6390_serdes_irq_free, .serdes_irq_enable = mv88e6390_serdes_irq_enable,
.serdes_irq_status = mv88e6390_serdes_irq_status,
.gpio_ops = &mv88e6352_gpio_ops, .gpio_ops = &mv88e6352_gpio_ops,
.avb_ops = &mv88e6390_avb_ops, .avb_ops = &mv88e6390_avb_ops,
.ptp_ops = &mv88e6352_ptp_ops, .ptp_ops = &mv88e6352_ptp_ops,
...@@ -3629,8 +3705,9 @@ static const struct mv88e6xxx_ops mv88e6341_ops = { ...@@ -3629,8 +3705,9 @@ static const struct mv88e6xxx_ops mv88e6341_ops = {
.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge, .vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
.serdes_power = mv88e6390_serdes_power, .serdes_power = mv88e6390_serdes_power,
.serdes_get_lane = mv88e6341_serdes_get_lane, .serdes_get_lane = mv88e6341_serdes_get_lane,
.serdes_irq_setup = mv88e6390_serdes_irq_setup, .serdes_irq_mapping = mv88e6390_serdes_irq_mapping,
.serdes_irq_free = mv88e6390_serdes_irq_free, .serdes_irq_enable = mv88e6390_serdes_irq_enable,
.serdes_irq_status = mv88e6390_serdes_irq_status,
.gpio_ops = &mv88e6352_gpio_ops, .gpio_ops = &mv88e6352_gpio_ops,
.avb_ops = &mv88e6390_avb_ops, .avb_ops = &mv88e6390_avb_ops,
.ptp_ops = &mv88e6352_ptp_ops, .ptp_ops = &mv88e6352_ptp_ops,
...@@ -3759,9 +3836,11 @@ static const struct mv88e6xxx_ops mv88e6352_ops = { ...@@ -3759,9 +3836,11 @@ static const struct mv88e6xxx_ops mv88e6352_ops = {
.rmu_disable = mv88e6352_g1_rmu_disable, .rmu_disable = mv88e6352_g1_rmu_disable,
.vtu_getnext = mv88e6352_g1_vtu_getnext, .vtu_getnext = mv88e6352_g1_vtu_getnext,
.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge, .vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
.serdes_get_lane = mv88e6352_serdes_get_lane,
.serdes_power = mv88e6352_serdes_power, .serdes_power = mv88e6352_serdes_power,
.serdes_irq_setup = mv88e6352_serdes_irq_setup, .serdes_irq_mapping = mv88e6352_serdes_irq_mapping,
.serdes_irq_free = mv88e6352_serdes_irq_free, .serdes_irq_enable = mv88e6352_serdes_irq_enable,
.serdes_irq_status = mv88e6352_serdes_irq_status,
.gpio_ops = &mv88e6352_gpio_ops, .gpio_ops = &mv88e6352_gpio_ops,
.avb_ops = &mv88e6352_avb_ops, .avb_ops = &mv88e6352_avb_ops,
.ptp_ops = &mv88e6352_ptp_ops, .ptp_ops = &mv88e6352_ptp_ops,
...@@ -3814,8 +3893,9 @@ static const struct mv88e6xxx_ops mv88e6390_ops = { ...@@ -3814,8 +3893,9 @@ static const struct mv88e6xxx_ops mv88e6390_ops = {
.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge, .vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
.serdes_power = mv88e6390_serdes_power, .serdes_power = mv88e6390_serdes_power,
.serdes_get_lane = mv88e6390_serdes_get_lane, .serdes_get_lane = mv88e6390_serdes_get_lane,
.serdes_irq_setup = mv88e6390_serdes_irq_setup, .serdes_irq_mapping = mv88e6390_serdes_irq_mapping,
.serdes_irq_free = mv88e6390_serdes_irq_free, .serdes_irq_enable = mv88e6390_serdes_irq_enable,
.serdes_irq_status = mv88e6390_serdes_irq_status,
.gpio_ops = &mv88e6352_gpio_ops, .gpio_ops = &mv88e6352_gpio_ops,
.avb_ops = &mv88e6390_avb_ops, .avb_ops = &mv88e6390_avb_ops,
.ptp_ops = &mv88e6352_ptp_ops, .ptp_ops = &mv88e6352_ptp_ops,
...@@ -3865,8 +3945,9 @@ static const struct mv88e6xxx_ops mv88e6390x_ops = { ...@@ -3865,8 +3945,9 @@ static const struct mv88e6xxx_ops mv88e6390x_ops = {
.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge, .vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
.serdes_power = mv88e6390_serdes_power, .serdes_power = mv88e6390_serdes_power,
.serdes_get_lane = mv88e6390x_serdes_get_lane, .serdes_get_lane = mv88e6390x_serdes_get_lane,
.serdes_irq_setup = mv88e6390_serdes_irq_setup, .serdes_irq_mapping = mv88e6390_serdes_irq_mapping,
.serdes_irq_free = mv88e6390_serdes_irq_free, .serdes_irq_enable = mv88e6390_serdes_irq_enable,
.serdes_irq_status = mv88e6390_serdes_irq_status,
.gpio_ops = &mv88e6352_gpio_ops, .gpio_ops = &mv88e6352_gpio_ops,
.avb_ops = &mv88e6390_avb_ops, .avb_ops = &mv88e6390_avb_ops,
.ptp_ops = &mv88e6352_ptp_ops, .ptp_ops = &mv88e6352_ptp_ops,
......
drivers/net/dsa/mv88e6xxx/chip.h
View file @ 4bc61b0b
...@@ -199,7 +199,7 @@ struct mv88e6xxx_port { ...@@ -199,7 +199,7 @@ struct mv88e6xxx_port {
u64 vtu_member_violation; u64 vtu_member_violation;
u64 vtu_miss_violation; u64 vtu_miss_violation;
u8 cmode; u8 cmode;
int serdes_irq; unsigned int serdes_irq;
}; };
struct mv88e6xxx_chip { struct mv88e6xxx_chip {
...@@ -441,14 +441,19 @@ struct mv88e6xxx_ops { ...@@ -441,14 +441,19 @@ struct mv88e6xxx_ops {
int (*mgmt_rsvd2cpu)(struct mv88e6xxx_chip *chip); int (*mgmt_rsvd2cpu)(struct mv88e6xxx_chip *chip);
/* Power on/off a SERDES interface */ /* Power on/off a SERDES interface */
int (*serdes_power)(struct mv88e6xxx_chip *chip, int port, bool on); int (*serdes_power)(struct mv88e6xxx_chip *chip, int port, u8 lane,
bool up);
/* SERDES lane mapping */ /* SERDES lane mapping */
int (*serdes_get_lane)(struct mv88e6xxx_chip *chip, int port, u8 *lane); u8 (*serdes_get_lane)(struct mv88e6xxx_chip *chip, int port);
/* SERDES interrupt handling */ /* SERDES interrupt handling */
int (*serdes_irq_setup)(struct mv88e6xxx_chip *chip, int port); unsigned int (*serdes_irq_mapping)(struct mv88e6xxx_chip *chip,
void (*serdes_irq_free)(struct mv88e6xxx_chip *chip, int port); int port);
int (*serdes_irq_enable)(struct mv88e6xxx_chip *chip, int port, u8 lane,
bool enable);
irqreturn_t (*serdes_irq_status)(struct mv88e6xxx_chip *chip, int port,
u8 lane);
/* Statistics from the SERDES interface */ /* Statistics from the SERDES interface */
int (*serdes_get_sset_count)(struct mv88e6xxx_chip *chip, int port); int (*serdes_get_sset_count)(struct mv88e6xxx_chip *chip, int port);
......
drivers/net/dsa/mv88e6xxx/port.c
View file @ 4bc61b0b
...@@ -431,18 +431,15 @@ static int mv88e6xxx_port_set_cmode(struct mv88e6xxx_chip *chip, int port, ...@@ -431,18 +431,15 @@ static int mv88e6xxx_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
if (cmode == chip->ports[port].cmode) if (cmode == chip->ports[port].cmode)
return 0; return 0;
err = mv88e6xxx_serdes_get_lane(chip, port, &lane); lane = mv88e6xxx_serdes_get_lane(chip, port);
if (err && err != -ENODEV) if (lane) {
return err;
if (err != -ENODEV) {
if (chip->ports[port].serdes_irq) { if (chip->ports[port].serdes_irq) {
err = mv88e6390_serdes_irq_disable(chip, port, lane); err = mv88e6xxx_serdes_irq_disable(chip, port, lane);
if (err) if (err)
return err; return err;
} }
err = mv88e6390_serdes_power(chip, port, false); err = mv88e6xxx_serdes_power_down(chip, port, lane);
if (err) if (err)
return err; return err;
} }
...@@ -463,16 +460,16 @@ static int mv88e6xxx_port_set_cmode(struct mv88e6xxx_chip *chip, int port, ...@@ -463,16 +460,16 @@ static int mv88e6xxx_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
chip->ports[port].cmode = cmode; chip->ports[port].cmode = cmode;
err = mv88e6xxx_serdes_get_lane(chip, port, &lane); lane = mv88e6xxx_serdes_get_lane(chip, port);
if (err) if (!lane)
return err; return -ENODEV;
err = mv88e6390_serdes_power(chip, port, true); err = mv88e6xxx_serdes_power_up(chip, port, lane);
if (err) if (err)
return err; return err;
if (chip->ports[port].serdes_irq) { if (chip->ports[port].serdes_irq) {
err = mv88e6390_serdes_irq_enable(chip, port, lane); err = mv88e6xxx_serdes_irq_enable(chip, port, lane);
if (err) if (err)
return err; return err;
} }
......
drivers/net/dsa/mv88e6xxx/serdes.c
View file @ 4bc61b0b
...@@ -49,7 +49,8 @@ static int mv88e6390_serdes_write(struct mv88e6xxx_chip *chip, ...@@ -49,7 +49,8 @@ static int mv88e6390_serdes_write(struct mv88e6xxx_chip *chip,
return mv88e6xxx_phy_write(chip, lane, reg_c45, val); return mv88e6xxx_phy_write(chip, lane, reg_c45, val);
} }
static int mv88e6352_serdes_power_set(struct mv88e6xxx_chip *chip, bool on) int mv88e6352_serdes_power(struct mv88e6xxx_chip *chip, int port, u8 lane,
bool up)
{ {
u16 val, new_val; u16 val, new_val;
int err; int err;
...@@ -58,7 +59,7 @@ static int mv88e6352_serdes_power_set(struct mv88e6xxx_chip *chip, bool on) ...@@ -58,7 +59,7 @@ static int mv88e6352_serdes_power_set(struct mv88e6xxx_chip *chip, bool on)
if (err) if (err)
return err; return err;
if (on) if (up)
new_val = val & ~BMCR_PDOWN; new_val = val & ~BMCR_PDOWN;
else else
new_val = val | BMCR_PDOWN; new_val = val | BMCR_PDOWN;
...@@ -69,29 +70,25 @@ static int mv88e6352_serdes_power_set(struct mv88e6xxx_chip *chip, bool on) ...@@ -69,29 +70,25 @@ static int mv88e6352_serdes_power_set(struct mv88e6xxx_chip *chip, bool on)
return err; return err;
} }
static bool mv88e6352_port_has_serdes(struct mv88e6xxx_chip *chip, int port) u8 mv88e6352_serdes_get_lane(struct mv88e6xxx_chip *chip, int port)
{ {
u8 cmode = chip->ports[port].cmode; u8 cmode = chip->ports[port].cmode;
u8 lane = 0;
if ((cmode == MV88E6XXX_PORT_STS_CMODE_100BASEX) || if ((cmode == MV88E6XXX_PORT_STS_CMODE_100BASEX) ||
(cmode == MV88E6XXX_PORT_STS_CMODE_1000BASEX) || (cmode == MV88E6XXX_PORT_STS_CMODE_1000BASEX) ||
(cmode == MV88E6XXX_PORT_STS_CMODE_SGMII)) (cmode == MV88E6XXX_PORT_STS_CMODE_SGMII))
return true; lane = 0xff; /* Unused */
return false; return lane;
} }
int mv88e6352_serdes_power(struct mv88e6xxx_chip *chip, int port, bool on) static bool mv88e6352_port_has_serdes(struct mv88e6xxx_chip *chip, int port)
{ {
int err; if (mv88e6xxx_serdes_get_lane(chip, port))
return true;
if (mv88e6352_port_has_serdes(chip, port)) {
err = mv88e6352_serdes_power_set(chip, on);
if (err < 0)
return err;
}
return 0; return false;
} }
struct mv88e6352_serdes_hw_stat { struct mv88e6352_serdes_hw_stat {
...@@ -186,254 +183,178 @@ static void mv88e6352_serdes_irq_link(struct mv88e6xxx_chip *chip, int port) ...@@ -186,254 +183,178 @@ static void mv88e6352_serdes_irq_link(struct mv88e6xxx_chip *chip, int port)
struct dsa_switch *ds = chip->ds; struct dsa_switch *ds = chip->ds;
u16 status; u16 status;
bool up; bool up;
int err;
mv88e6352_serdes_read(chip, MII_BMSR, &status); err = mv88e6352_serdes_read(chip, MII_BMSR, &status);
if (err)
return;
/* Status must be read twice in order to give the current link /* Status must be read twice in order to give the current link
* status. Otherwise the change in link status since the last * status. Otherwise the change in link status since the last
* read of the register is returned. * read of the register is returned.
*/ */
mv88e6352_serdes_read(chip, MII_BMSR, &status); err = mv88e6352_serdes_read(chip, MII_BMSR, &status);
if (err)
return;
up = status & BMSR_LSTATUS; up = status & BMSR_LSTATUS;
dsa_port_phylink_mac_change(ds, port, up); dsa_port_phylink_mac_change(ds, port, up);
} }
static irqreturn_t mv88e6352_serdes_thread_fn(int irq, void *dev_id) irqreturn_t mv88e6352_serdes_irq_status(struct mv88e6xxx_chip *chip, int port,
u8 lane)
{ {
struct mv88e6xxx_port *port = dev_id;
struct mv88e6xxx_chip *chip = port->chip;
irqreturn_t ret = IRQ_NONE; irqreturn_t ret = IRQ_NONE;
u16 status; u16 status;
int err; int err;
mv88e6xxx_reg_lock(chip);
err = mv88e6352_serdes_read(chip, MV88E6352_SERDES_INT_STATUS, &status); err = mv88e6352_serdes_read(chip, MV88E6352_SERDES_INT_STATUS, &status);
if (err) if (err)
goto out; return ret;
if (status & MV88E6352_SERDES_INT_LINK_CHANGE) { if (status & MV88E6352_SERDES_INT_LINK_CHANGE) {
ret = IRQ_HANDLED; ret = IRQ_HANDLED;
mv88e6352_serdes_irq_link(chip, port->port); mv88e6352_serdes_irq_link(chip, port);
} }
out:
mv88e6xxx_reg_unlock(chip);
return ret; return ret;
} }
static int mv88e6352_serdes_irq_enable(struct mv88e6xxx_chip *chip) int mv88e6352_serdes_irq_enable(struct mv88e6xxx_chip *chip, int port, u8 lane,
bool enable)
{ {
return mv88e6352_serdes_write(chip, MV88E6352_SERDES_INT_ENABLE, u16 val = 0;
MV88E6352_SERDES_INT_LINK_CHANGE);
}
static int mv88e6352_serdes_irq_disable(struct mv88e6xxx_chip *chip)
{
return mv88e6352_serdes_write(chip, MV88E6352_SERDES_INT_ENABLE, 0);
}
int mv88e6352_serdes_irq_setup(struct mv88e6xxx_chip *chip, int port) if (enable)
{ val |= MV88E6352_SERDES_INT_LINK_CHANGE;
int err;
if (!mv88e6352_port_has_serdes(chip, port))
return 0;
chip->ports[port].serdes_irq = irq_find_mapping(chip->g2_irq.domain,
MV88E6352_SERDES_IRQ);
if (chip->ports[port].serdes_irq < 0) {
dev_err(chip->dev, "Unable to map SERDES irq: %d\n",
chip->ports[port].serdes_irq);
return chip->ports[port].serdes_irq;
}
/* Requesting the IRQ will trigger irq callbacks. So we cannot
* hold the reg_lock.
*/
mv88e6xxx_reg_unlock(chip);
err = request_threaded_irq(chip->ports[port].serdes_irq, NULL,
mv88e6352_serdes_thread_fn,
IRQF_ONESHOT, "mv88e6xxx-serdes",
&chip->ports[port]);
mv88e6xxx_reg_lock(chip);
if (err) {
dev_err(chip->dev, "Unable to request SERDES interrupt: %d\n",
err);
return err;
}
return mv88e6352_serdes_irq_enable(chip); return mv88e6352_serdes_write(chip, MV88E6352_SERDES_INT_ENABLE, val);
} }
void mv88e6352_serdes_irq_free(struct mv88e6xxx_chip *chip, int port) unsigned int mv88e6352_serdes_irq_mapping(struct mv88e6xxx_chip *chip, int port)
{ {
if (!mv88e6352_port_has_serdes(chip, port)) return irq_find_mapping(chip->g2_irq.domain, MV88E6352_SERDES_IRQ);
return;
mv88e6352_serdes_irq_disable(chip);
/* Freeing the IRQ will trigger irq callbacks. So we cannot
* hold the reg_lock.
*/
mv88e6xxx_reg_unlock(chip);
free_irq(chip->ports[port].serdes_irq, &chip->ports[port]);
mv88e6xxx_reg_lock(chip);
chip->ports[port].serdes_irq = 0;
} }
int mv88e6341_serdes_get_lane(struct mv88e6xxx_chip *chip, int port, u8 *lane) u8 mv88e6341_serdes_get_lane(struct mv88e6xxx_chip *chip, int port)
{ {
u8 cmode = chip->ports[port].cmode; u8 cmode = chip->ports[port].cmode;
u8 lane = 0;
if (port != 5) switch (port) {
return -ENODEV; case 5:
if (cmode == MV88E6XXX_PORT_STS_CMODE_1000BASEX || if (cmode == MV88E6XXX_PORT_STS_CMODE_1000BASEX ||
cmode == MV88E6XXX_PORT_STS_CMODE_SGMII || cmode == MV88E6XXX_PORT_STS_CMODE_SGMII ||
cmode == MV88E6XXX_PORT_STS_CMODE_2500BASEX) { cmode == MV88E6XXX_PORT_STS_CMODE_2500BASEX)
*lane = MV88E6341_PORT5_LANE; lane = MV88E6341_PORT5_LANE;
return 0; break;
} }
return -ENODEV; return lane;
} }
int mv88e6390_serdes_get_lane(struct mv88e6xxx_chip *chip, int port, u8 *lane) u8 mv88e6390_serdes_get_lane(struct mv88e6xxx_chip *chip, int port)
{ {
u8 cmode = chip->ports[port].cmode; u8 cmode = chip->ports[port].cmode;
u8 lane = 0;
switch (port) { switch (port) {
case 9: case 9:
if (cmode == MV88E6XXX_PORT_STS_CMODE_1000BASEX || if (cmode == MV88E6XXX_PORT_STS_CMODE_1000BASEX ||
cmode == MV88E6XXX_PORT_STS_CMODE_SGMII || cmode == MV88E6XXX_PORT_STS_CMODE_SGMII ||
cmode == MV88E6XXX_PORT_STS_CMODE_2500BASEX) { cmode == MV88E6XXX_PORT_STS_CMODE_2500BASEX)
*lane = MV88E6390_PORT9_LANE0; lane = MV88E6390_PORT9_LANE0;
return 0;
}
break; break;
case 10: case 10:
if (cmode == MV88E6XXX_PORT_STS_CMODE_1000BASEX || if (cmode == MV88E6XXX_PORT_STS_CMODE_1000BASEX ||
cmode == MV88E6XXX_PORT_STS_CMODE_SGMII || cmode == MV88E6XXX_PORT_STS_CMODE_SGMII ||
cmode == MV88E6XXX_PORT_STS_CMODE_2500BASEX) { cmode == MV88E6XXX_PORT_STS_CMODE_2500BASEX)
*lane = MV88E6390_PORT10_LANE0; lane = MV88E6390_PORT10_LANE0;
return 0;
}
break;
default:
break; break;
} }
return -ENODEV; return lane;
} }
int mv88e6390x_serdes_get_lane(struct mv88e6xxx_chip *chip, int port, u8 *lane) u8 mv88e6390x_serdes_get_lane(struct mv88e6xxx_chip *chip, int port)
{ {
u8 cmode_port9, cmode_port10, cmode_port; u8 cmode_port = chip->ports[port].cmode;
u8 cmode_port10 = chip->ports[10].cmode;
cmode_port9 = chip->ports[9].cmode; u8 cmode_port9 = chip->ports[9].cmode;
cmode_port10 = chip->ports[10].cmode; u8 lane = 0;
cmode_port = chip->ports[port].cmode;
switch (port) { switch (port) {
case 2: case 2:
if (cmode_port9 == MV88E6XXX_PORT_STS_CMODE_1000BASEX || if (cmode_port9 == MV88E6XXX_PORT_STS_CMODE_1000BASEX ||
cmode_port9 == MV88E6XXX_PORT_STS_CMODE_SGMII || cmode_port9 == MV88E6XXX_PORT_STS_CMODE_SGMII ||
cmode_port9 == MV88E6XXX_PORT_STS_CMODE_2500BASEX) { cmode_port9 == MV88E6XXX_PORT_STS_CMODE_2500BASEX)
if (cmode_port == MV88E6XXX_PORT_STS_CMODE_1000BASEX) { if (cmode_port == MV88E6XXX_PORT_STS_CMODE_1000BASEX)
*lane = MV88E6390_PORT9_LANE1; lane = MV88E6390_PORT9_LANE1;
return 0;
}
}
break; break;
case 3: case 3:
if (cmode_port9 == MV88E6XXX_PORT_STS_CMODE_1000BASEX || if (cmode_port9 == MV88E6XXX_PORT_STS_CMODE_1000BASEX ||
cmode_port9 == MV88E6XXX_PORT_STS_CMODE_SGMII || cmode_port9 == MV88E6XXX_PORT_STS_CMODE_SGMII ||
cmode_port9 == MV88E6XXX_PORT_STS_CMODE_2500BASEX || cmode_port9 == MV88E6XXX_PORT_STS_CMODE_2500BASEX ||
cmode_port9 == MV88E6XXX_PORT_STS_CMODE_RXAUI) { cmode_port9 == MV88E6XXX_PORT_STS_CMODE_RXAUI)
if (cmode_port == MV88E6XXX_PORT_STS_CMODE_1000BASEX) { if (cmode_port == MV88E6XXX_PORT_STS_CMODE_1000BASEX)
*lane = MV88E6390_PORT9_LANE2; lane = MV88E6390_PORT9_LANE2;
return 0;
}
}
break; break;
case 4: case 4:
if (cmode_port9 == MV88E6XXX_PORT_STS_CMODE_1000BASEX || if (cmode_port9 == MV88E6XXX_PORT_STS_CMODE_1000BASEX ||
cmode_port9 == MV88E6XXX_PORT_STS_CMODE_SGMII || cmode_port9 == MV88E6XXX_PORT_STS_CMODE_SGMII ||
cmode_port9 == MV88E6XXX_PORT_STS_CMODE_2500BASEX || cmode_port9 == MV88E6XXX_PORT_STS_CMODE_2500BASEX ||
cmode_port9 == MV88E6XXX_PORT_STS_CMODE_RXAUI) { cmode_port9 == MV88E6XXX_PORT_STS_CMODE_RXAUI)
if (cmode_port == MV88E6XXX_PORT_STS_CMODE_1000BASEX) { if (cmode_port == MV88E6XXX_PORT_STS_CMODE_1000BASEX)
*lane = MV88E6390_PORT9_LANE3; lane = MV88E6390_PORT9_LANE3;
return 0;
}
}
break; break;
case 5: case 5:
if (cmode_port10 == MV88E6XXX_PORT_STS_CMODE_1000BASEX || if (cmode_port10 == MV88E6XXX_PORT_STS_CMODE_1000BASEX ||
cmode_port10 == MV88E6XXX_PORT_STS_CMODE_SGMII || cmode_port10 == MV88E6XXX_PORT_STS_CMODE_SGMII ||
cmode_port10 == MV88E6XXX_PORT_STS_CMODE_2500BASEX) { cmode_port10 == MV88E6XXX_PORT_STS_CMODE_2500BASEX)
if (cmode_port == MV88E6XXX_PORT_STS_CMODE_1000BASEX) { if (cmode_port == MV88E6XXX_PORT_STS_CMODE_1000BASEX)
*lane = MV88E6390_PORT10_LANE1; lane = MV88E6390_PORT10_LANE1;
return 0;
}
}
break; break;
case 6: case 6:
if (cmode_port10 == MV88E6XXX_PORT_STS_CMODE_1000BASEX || if (cmode_port10 == MV88E6XXX_PORT_STS_CMODE_1000BASEX ||
cmode_port10 == MV88E6XXX_PORT_STS_CMODE_SGMII || cmode_port10 == MV88E6XXX_PORT_STS_CMODE_SGMII ||
cmode_port10 == MV88E6XXX_PORT_STS_CMODE_2500BASEX || cmode_port10 == MV88E6XXX_PORT_STS_CMODE_2500BASEX ||
cmode_port10 == MV88E6XXX_PORT_STS_CMODE_RXAUI) { cmode_port10 == MV88E6XXX_PORT_STS_CMODE_RXAUI)
if (cmode_port == MV88E6XXX_PORT_STS_CMODE_1000BASEX) { if (cmode_port == MV88E6XXX_PORT_STS_CMODE_1000BASEX)
*lane = MV88E6390_PORT10_LANE2; lane = MV88E6390_PORT10_LANE2;
return 0;
}
}
break; break;
case 7: case 7:
if (cmode_port10 == MV88E6XXX_PORT_STS_CMODE_1000BASEX || if (cmode_port10 == MV88E6XXX_PORT_STS_CMODE_1000BASEX ||
cmode_port10 == MV88E6XXX_PORT_STS_CMODE_SGMII || cmode_port10 == MV88E6XXX_PORT_STS_CMODE_SGMII ||
cmode_port10 == MV88E6XXX_PORT_STS_CMODE_2500BASEX || cmode_port10 == MV88E6XXX_PORT_STS_CMODE_2500BASEX ||
cmode_port10 == MV88E6XXX_PORT_STS_CMODE_RXAUI) { cmode_port10 == MV88E6XXX_PORT_STS_CMODE_RXAUI)
if (cmode_port == MV88E6XXX_PORT_STS_CMODE_1000BASEX) { if (cmode_port == MV88E6XXX_PORT_STS_CMODE_1000BASEX)
*lane = MV88E6390_PORT10_LANE3; lane = MV88E6390_PORT10_LANE3;
return 0;
}
}
break; break;
case 9: case 9:
if (cmode_port9 == MV88E6XXX_PORT_STS_CMODE_1000BASEX || if (cmode_port9 == MV88E6XXX_PORT_STS_CMODE_1000BASEX ||
cmode_port9 == MV88E6XXX_PORT_STS_CMODE_SGMII || cmode_port9 == MV88E6XXX_PORT_STS_CMODE_SGMII ||
cmode_port9 == MV88E6XXX_PORT_STS_CMODE_2500BASEX || cmode_port9 == MV88E6XXX_PORT_STS_CMODE_2500BASEX ||
cmode_port9 == MV88E6XXX_PORT_STS_CMODE_XAUI || cmode_port9 == MV88E6XXX_PORT_STS_CMODE_XAUI ||
cmode_port9 == MV88E6XXX_PORT_STS_CMODE_RXAUI) { cmode_port9 == MV88E6XXX_PORT_STS_CMODE_RXAUI)
*lane = MV88E6390_PORT9_LANE0; lane = MV88E6390_PORT9_LANE0;
return 0;
}
break; break;
case 10: case 10:
if (cmode_port10 == MV88E6XXX_PORT_STS_CMODE_1000BASEX || if (cmode_port10 == MV88E6XXX_PORT_STS_CMODE_1000BASEX ||
cmode_port10 == MV88E6XXX_PORT_STS_CMODE_SGMII || cmode_port10 == MV88E6XXX_PORT_STS_CMODE_SGMII ||
cmode_port10 == MV88E6XXX_PORT_STS_CMODE_2500BASEX || cmode_port10 == MV88E6XXX_PORT_STS_CMODE_2500BASEX ||
cmode_port10 == MV88E6XXX_PORT_STS_CMODE_XAUI || cmode_port10 == MV88E6XXX_PORT_STS_CMODE_XAUI ||
cmode_port10 == MV88E6XXX_PORT_STS_CMODE_RXAUI) { cmode_port10 == MV88E6XXX_PORT_STS_CMODE_RXAUI)
*lane = MV88E6390_PORT10_LANE0; lane = MV88E6390_PORT10_LANE0;
return 0;
}
break;
default:
break; break;
} }
return -ENODEV; return lane;
} }
/* Set the power on/off for 10GBASE-R and 10GBASE-X4/X2 */ /* Set power up/down for 10GBASE-R and 10GBASE-X4/X2 */
static int mv88e6390_serdes_power_10g(struct mv88e6xxx_chip *chip, u8 lane, static int mv88e6390_serdes_power_10g(struct mv88e6xxx_chip *chip, u8 lane,
bool on) bool up)
{ {
u16 val, new_val; u16 val, new_val;
int err; int err;
...@@ -444,7 +365,7 @@ static int mv88e6390_serdes_power_10g(struct mv88e6xxx_chip *chip, u8 lane, ...@@ -444,7 +365,7 @@ static int mv88e6390_serdes_power_10g(struct mv88e6xxx_chip *chip, u8 lane,
if (err) if (err)
return err; return err;
if (on) if (up)
new_val = val & ~(MV88E6390_PCS_CONTROL_1_RESET | new_val = val & ~(MV88E6390_PCS_CONTROL_1_RESET |
MV88E6390_PCS_CONTROL_1_LOOPBACK | MV88E6390_PCS_CONTROL_1_LOOPBACK |
MV88E6390_PCS_CONTROL_1_PDOWN); MV88E6390_PCS_CONTROL_1_PDOWN);
...@@ -458,9 +379,9 @@ static int mv88e6390_serdes_power_10g(struct mv88e6xxx_chip *chip, u8 lane, ...@@ -458,9 +379,9 @@ static int mv88e6390_serdes_power_10g(struct mv88e6xxx_chip *chip, u8 lane,
return err; return err;
} }
/* Set the power on/off for SGMII and 1000Base-X */ /* Set power up/down for SGMII and 1000Base-X */
static int mv88e6390_serdes_power_sgmii(struct mv88e6xxx_chip *chip, u8 lane, static int mv88e6390_serdes_power_sgmii(struct mv88e6xxx_chip *chip, u8 lane,
bool on) bool up)
{ {
u16 val, new_val; u16 val, new_val;
int err; int err;
...@@ -470,7 +391,7 @@ static int mv88e6390_serdes_power_sgmii(struct mv88e6xxx_chip *chip, u8 lane, ...@@ -470,7 +391,7 @@ static int mv88e6390_serdes_power_sgmii(struct mv88e6xxx_chip *chip, u8 lane,
if (err) if (err)
return err; return err;
if (on) if (up)
new_val = val & ~(MV88E6390_SGMII_CONTROL_RESET | new_val = val & ~(MV88E6390_SGMII_CONTROL_RESET |
MV88E6390_SGMII_CONTROL_LOOPBACK | MV88E6390_SGMII_CONTROL_LOOPBACK |
MV88E6390_SGMII_CONTROL_PDOWN); MV88E6390_SGMII_CONTROL_PDOWN);
...@@ -484,27 +405,19 @@ static int mv88e6390_serdes_power_sgmii(struct mv88e6xxx_chip *chip, u8 lane, ...@@ -484,27 +405,19 @@ static int mv88e6390_serdes_power_sgmii(struct mv88e6xxx_chip *chip, u8 lane,
return err; return err;
} }
int mv88e6390_serdes_power(struct mv88e6xxx_chip *chip, int port, bool on) int mv88e6390_serdes_power(struct mv88e6xxx_chip *chip, int port, u8 lane,
bool up)
{ {
u8 cmode = chip->ports[port].cmode; u8 cmode = chip->ports[port].cmode;
u8 lane;
int err;
err = mv88e6xxx_serdes_get_lane(chip, port, &lane);
if (err) {
if (err == -ENODEV)
err = 0;
return err;
}
switch (cmode) { switch (cmode) {
case MV88E6XXX_PORT_STS_CMODE_SGMII: case MV88E6XXX_PORT_STS_CMODE_SGMII:
case MV88E6XXX_PORT_STS_CMODE_1000BASEX: case MV88E6XXX_PORT_STS_CMODE_1000BASEX:
case MV88E6XXX_PORT_STS_CMODE_2500BASEX: case MV88E6XXX_PORT_STS_CMODE_2500BASEX:
return mv88e6390_serdes_power_sgmii(chip, lane, on); return mv88e6390_serdes_power_sgmii(chip, lane, up);
case MV88E6XXX_PORT_STS_CMODE_XAUI: case MV88E6XXX_PORT_STS_CMODE_XAUI:
case MV88E6XXX_PORT_STS_CMODE_RXAUI: case MV88E6XXX_PORT_STS_CMODE_RXAUI:
return mv88e6390_serdes_power_10g(chip, lane, on); return mv88e6390_serdes_power_10g(chip, lane, up);
} }
return 0; return 0;
...@@ -578,51 +491,31 @@ static void mv88e6390_serdes_irq_link_sgmii(struct mv88e6xxx_chip *chip, ...@@ -578,51 +491,31 @@ static void mv88e6390_serdes_irq_link_sgmii(struct mv88e6xxx_chip *chip,
} }
static int mv88e6390_serdes_irq_enable_sgmii(struct mv88e6xxx_chip *chip, static int mv88e6390_serdes_irq_enable_sgmii(struct mv88e6xxx_chip *chip,
u8 lane) u8 lane, bool enable)
{ {
return mv88e6390_serdes_write(chip, lane, MDIO_MMD_PHYXS, u16 val = 0;
MV88E6390_SGMII_INT_ENABLE,
MV88E6390_SGMII_INT_LINK_DOWN |
MV88E6390_SGMII_INT_LINK_UP);
}
static int mv88e6390_serdes_irq_disable_sgmii(struct mv88e6xxx_chip *chip, if (enable)
u8 lane) val |= MV88E6390_SGMII_INT_LINK_DOWN |
{ MV88E6390_SGMII_INT_LINK_UP;
return mv88e6390_serdes_write(chip, lane, MDIO_MMD_PHYXS,
MV88E6390_SGMII_INT_ENABLE, 0);
}
int mv88e6390_serdes_irq_enable(struct mv88e6xxx_chip *chip, int port, return mv88e6390_serdes_write(chip, lane, MDIO_MMD_PHYXS,
u8 lane) MV88E6390_SGMII_INT_ENABLE, val);
{
u8 cmode = chip->ports[port].cmode;
int err = 0;
switch (cmode) {
case MV88E6XXX_PORT_STS_CMODE_SGMII:
case MV88E6XXX_PORT_STS_CMODE_1000BASEX:
case MV88E6XXX_PORT_STS_CMODE_2500BASEX:
err = mv88e6390_serdes_irq_enable_sgmii(chip, lane);
}
return err;
} }
int mv88e6390_serdes_irq_disable(struct mv88e6xxx_chip *chip, int port, int mv88e6390_serdes_irq_enable(struct mv88e6xxx_chip *chip, int port, u8 lane,
u8 lane) bool enable)
{ {
u8 cmode = chip->ports[port].cmode; u8 cmode = chip->ports[port].cmode;
int err = 0;
switch (cmode) { switch (cmode) {
case MV88E6XXX_PORT_STS_CMODE_SGMII: case MV88E6XXX_PORT_STS_CMODE_SGMII:
case MV88E6XXX_PORT_STS_CMODE_1000BASEX: case MV88E6XXX_PORT_STS_CMODE_1000BASEX:
case MV88E6XXX_PORT_STS_CMODE_2500BASEX: case MV88E6XXX_PORT_STS_CMODE_2500BASEX:
err = mv88e6390_serdes_irq_disable_sgmii(chip, lane); return mv88e6390_serdes_irq_enable_sgmii(chip, lane, enable);
} }
return err; return 0;
} }
static int mv88e6390_serdes_irq_status_sgmii(struct mv88e6xxx_chip *chip, static int mv88e6390_serdes_irq_status_sgmii(struct mv88e6xxx_chip *chip,
...@@ -636,21 +529,13 @@ static int mv88e6390_serdes_irq_status_sgmii(struct mv88e6xxx_chip *chip, ...@@ -636,21 +529,13 @@ static int mv88e6390_serdes_irq_status_sgmii(struct mv88e6xxx_chip *chip,
return err; return err;
} }
static irqreturn_t mv88e6390_serdes_thread_fn(int irq, void *dev_id) irqreturn_t mv88e6390_serdes_irq_status(struct mv88e6xxx_chip *chip, int port,
u8 lane)
{ {
struct mv88e6xxx_port *port = dev_id; u8 cmode = chip->ports[port].cmode;
struct mv88e6xxx_chip *chip = port->chip;
irqreturn_t ret = IRQ_NONE; irqreturn_t ret = IRQ_NONE;
u8 cmode = port->cmode;
u16 status; u16 status;
int err; int err;
u8 lane;
mv88e6xxx_reg_lock(chip);
err = mv88e6xxx_serdes_get_lane(chip, port->port, &lane);
if (err)
goto out;
switch (cmode) { switch (cmode) {
case MV88E6XXX_PORT_STS_CMODE_SGMII: case MV88E6XXX_PORT_STS_CMODE_SGMII:
...@@ -658,79 +543,18 @@ static irqreturn_t mv88e6390_serdes_thread_fn(int irq, void *dev_id) ...@@ -658,79 +543,18 @@ static irqreturn_t mv88e6390_serdes_thread_fn(int irq, void *dev_id)
case MV88E6XXX_PORT_STS_CMODE_2500BASEX: case MV88E6XXX_PORT_STS_CMODE_2500BASEX:
err = mv88e6390_serdes_irq_status_sgmii(chip, lane, &status); err = mv88e6390_serdes_irq_status_sgmii(chip, lane, &status);
if (err) if (err)
goto out; return ret;
if (status & (MV88E6390_SGMII_INT_LINK_DOWN | if (status & (MV88E6390_SGMII_INT_LINK_DOWN |
MV88E6390_SGMII_INT_LINK_UP)) { MV88E6390_SGMII_INT_LINK_UP)) {
ret = IRQ_HANDLED; ret = IRQ_HANDLED;
mv88e6390_serdes_irq_link_sgmii(chip, port->port, lane); mv88e6390_serdes_irq_link_sgmii(chip, port, lane);
} }
} }
out:
mv88e6xxx_reg_unlock(chip);
return ret; return ret;
} }
int mv88e6390_serdes_irq_setup(struct mv88e6xxx_chip *chip, int port) unsigned int mv88e6390_serdes_irq_mapping(struct mv88e6xxx_chip *chip, int port)
{ {
int err; return irq_find_mapping(chip->g2_irq.domain, port);
u8 lane;
err = mv88e6xxx_serdes_get_lane(chip, port, &lane);
if (err) {
if (err == -ENODEV)
err = 0;
return err;
}
chip->ports[port].serdes_irq = irq_find_mapping(chip->g2_irq.domain,
port);
if (chip->ports[port].serdes_irq < 0) {
dev_err(chip->dev, "Unable to map SERDES irq: %d\n",
chip->ports[port].serdes_irq);
return chip->ports[port].serdes_irq;
}
/* Requesting the IRQ will trigger irq callbacks. So we cannot
* hold the reg_lock.
*/
mv88e6xxx_reg_unlock(chip);
err = request_threaded_irq(chip->ports[port].serdes_irq, NULL,
mv88e6390_serdes_thread_fn,
IRQF_ONESHOT, "mv88e6xxx-serdes",
&chip->ports[port]);
mv88e6xxx_reg_lock(chip);
if (err) {
dev_err(chip->dev, "Unable to request SERDES interrupt: %d\n",
err);
return err;
}
return mv88e6390_serdes_irq_enable(chip, port, lane);
}
void mv88e6390_serdes_irq_free(struct mv88e6xxx_chip *chip, int port)
{
int err;
u8 lane;
err = mv88e6xxx_serdes_get_lane(chip, port, &lane);
if (err) {
if (err != -ENODEV)
dev_err(chip->dev, "Unable to free SERDES irq: %d\n",
err);
return;
}
mv88e6390_serdes_irq_disable(chip, port, lane);
/* Freeing the IRQ will trigger irq callbacks. So we cannot
* hold the reg_lock.
*/
mv88e6xxx_reg_unlock(chip);
free_irq(chip->ports[port].serdes_irq, &chip->ports[port]);
mv88e6xxx_reg_lock(chip);
chip->ports[port].serdes_irq = 0;
} }
drivers/net/dsa/mv88e6xxx/serdes.h
View file @ 4bc61b0b
...@@ -74,37 +74,94 @@ ...@@ -74,37 +74,94 @@
#define MV88E6390_SGMII_PHY_STATUS_SPD_DPL_VALID BIT(11) #define MV88E6390_SGMII_PHY_STATUS_SPD_DPL_VALID BIT(11)
#define MV88E6390_SGMII_PHY_STATUS_LINK BIT(10) #define MV88E6390_SGMII_PHY_STATUS_LINK BIT(10)
/* Put the SERDES lane address a port is using into *lane. If a port has u8 mv88e6341_serdes_get_lane(struct mv88e6xxx_chip *chip, int port);
* multiple lanes, should put the first lane the port is using. If a port does u8 mv88e6352_serdes_get_lane(struct mv88e6xxx_chip *chip, int port);
* not have a lane, return -ENODEV. u8 mv88e6390_serdes_get_lane(struct mv88e6xxx_chip *chip, int port);
*/ u8 mv88e6390x_serdes_get_lane(struct mv88e6xxx_chip *chip, int port);
static inline int mv88e6xxx_serdes_get_lane(struct mv88e6xxx_chip *chip, unsigned int mv88e6352_serdes_irq_mapping(struct mv88e6xxx_chip *chip,
int port, u8 *lane) int port);
unsigned int mv88e6390_serdes_irq_mapping(struct mv88e6xxx_chip *chip,
int port);
int mv88e6352_serdes_power(struct mv88e6xxx_chip *chip, int port, u8 lane,
bool on);
int mv88e6390_serdes_power(struct mv88e6xxx_chip *chip, int port, u8 lane,
bool on);
int mv88e6352_serdes_irq_enable(struct mv88e6xxx_chip *chip, int port, u8 lane,
bool enable);
int mv88e6390_serdes_irq_enable(struct mv88e6xxx_chip *chip, int port, u8 lane,
bool enable);
irqreturn_t mv88e6352_serdes_irq_status(struct mv88e6xxx_chip *chip, int port,
u8 lane);
irqreturn_t mv88e6390_serdes_irq_status(struct mv88e6xxx_chip *chip, int port,
u8 lane);
int mv88e6352_serdes_get_sset_count(struct mv88e6xxx_chip *chip, int port);
int mv88e6352_serdes_get_strings(struct mv88e6xxx_chip *chip,
int port, uint8_t *data);
int mv88e6352_serdes_get_stats(struct mv88e6xxx_chip *chip, int port,
uint64_t *data);
/* Return the (first) SERDES lane address a port is using, 0 otherwise. */
static inline u8 mv88e6xxx_serdes_get_lane(struct mv88e6xxx_chip *chip,
int port)
{ {
if (!chip->info->ops->serdes_get_lane) if (!chip->info->ops->serdes_get_lane)
return 0;
return chip->info->ops->serdes_get_lane(chip, port);
}
static inline int mv88e6xxx_serdes_power_up(struct mv88e6xxx_chip *chip,
int port, u8 lane)
{
if (!chip->info->ops->serdes_power)
return -EOPNOTSUPP; return -EOPNOTSUPP;
return chip->info->ops->serdes_get_lane(chip, port, lane); return chip->info->ops->serdes_power(chip, port, lane, true);
} }
int mv88e6341_serdes_get_lane(struct mv88e6xxx_chip *chip, int port, u8 *lane); static inline int mv88e6xxx_serdes_power_down(struct mv88e6xxx_chip *chip,
int mv88e6390_serdes_get_lane(struct mv88e6xxx_chip *chip, int port, u8 *lane); int port, u8 lane)
int mv88e6390x_serdes_get_lane(struct mv88e6xxx_chip *chip, int port, u8 *lane); {
int mv88e6352_serdes_power(struct mv88e6xxx_chip *chip, int port, bool on); if (!chip->info->ops->serdes_power)
int mv88e6390_serdes_power(struct mv88e6xxx_chip *chip, int port, bool on); return -EOPNOTSUPP;
int mv88e6390_serdes_irq_setup(struct mv88e6xxx_chip *chip, int port);
void mv88e6390_serdes_irq_free(struct mv88e6xxx_chip *chip, int port); return chip->info->ops->serdes_power(chip, port, lane, false);
int mv88e6352_serdes_get_sset_count(struct mv88e6xxx_chip *chip, int port); }
int mv88e6352_serdes_get_strings(struct mv88e6xxx_chip *chip,
int port, uint8_t *data); static inline unsigned int
int mv88e6352_serdes_get_stats(struct mv88e6xxx_chip *chip, int port, mv88e6xxx_serdes_irq_mapping(struct mv88e6xxx_chip *chip, int port)
uint64_t *data); {
int mv88e6390_serdes_irq_enable(struct mv88e6xxx_chip *chip, int port, if (!chip->info->ops->serdes_irq_mapping)
u8 lane); return 0;
int mv88e6390_serdes_irq_disable(struct mv88e6xxx_chip *chip, int port,
u8 lane); return chip->info->ops->serdes_irq_mapping(chip, port);
int mv88e6352_serdes_irq_setup(struct mv88e6xxx_chip *chip, int port); }
void mv88e6352_serdes_irq_free(struct mv88e6xxx_chip *chip, int port);
static inline int mv88e6xxx_serdes_irq_enable(struct mv88e6xxx_chip *chip,
int port, u8 lane)
{
if (!chip->info->ops->serdes_irq_enable)
return -EOPNOTSUPP;
return chip->info->ops->serdes_irq_enable(chip, port, lane, true);
}
static inline int mv88e6xxx_serdes_irq_disable(struct mv88e6xxx_chip *chip,
int port, u8 lane)
{
if (!chip->info->ops->serdes_irq_enable)
return -EOPNOTSUPP;
return chip->info->ops->serdes_irq_enable(chip, port, lane, false);
}
static inline irqreturn_t
mv88e6xxx_serdes_irq_status(struct mv88e6xxx_chip *chip, int port, u8 lane)
{
if (!chip->info->ops->serdes_irq_status)
return IRQ_NONE;
return chip->info->ops->serdes_irq_status(chip, port, lane);
}
#endif #endif
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