diff options
Diffstat (limited to 'drivers/net/dsa/mv88e6xxx/serdes.c')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/serdes.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/serdes.c b/drivers/net/dsa/mv88e6xxx/serdes.c index 4487d18132a4..4756969c1546 100644 --- a/drivers/net/dsa/mv88e6xxx/serdes.c +++ b/drivers/net/dsa/mv88e6xxx/serdes.c @@ -87,6 +87,90 @@ int mv88e6352_serdes_power(struct mv88e6xxx_chip *chip, int port, bool on) return 0; } +struct mv88e6352_serdes_hw_stat { + char string[ETH_GSTRING_LEN]; + int sizeof_stat; + int reg; +}; + +static struct mv88e6352_serdes_hw_stat mv88e6352_serdes_hw_stats[] = { + { "serdes_fibre_rx_error", 16, 21 }, + { "serdes_PRBS_error", 32, 24 }, +}; + +int mv88e6352_serdes_get_sset_count(struct mv88e6xxx_chip *chip, int port) +{ + if (mv88e6352_port_has_serdes(chip, port)) + return ARRAY_SIZE(mv88e6352_serdes_hw_stats); + + return 0; +} + +void mv88e6352_serdes_get_strings(struct mv88e6xxx_chip *chip, + int port, uint8_t *data) +{ + struct mv88e6352_serdes_hw_stat *stat; + int i; + + if (!mv88e6352_port_has_serdes(chip, port)) + return; + + for (i = 0; i < ARRAY_SIZE(mv88e6352_serdes_hw_stats); i++) { + stat = &mv88e6352_serdes_hw_stats[i]; + memcpy(data + i * ETH_GSTRING_LEN, stat->string, + ETH_GSTRING_LEN); + } +} + +static uint64_t mv88e6352_serdes_get_stat(struct mv88e6xxx_chip *chip, + struct mv88e6352_serdes_hw_stat *stat) +{ + u64 val = 0; + u16 reg; + int err; + + err = mv88e6352_serdes_read(chip, stat->reg, ®); + if (err) { + dev_err(chip->dev, "failed to read statistic\n"); + return 0; + } + + val = reg; + + if (stat->sizeof_stat == 32) { + err = mv88e6352_serdes_read(chip, stat->reg + 1, ®); + if (err) { + dev_err(chip->dev, "failed to read statistic\n"); + return 0; + } + val = val << 16 | reg; + } + + return val; +} + +void mv88e6352_serdes_get_stats(struct mv88e6xxx_chip *chip, int port, + uint64_t *data) +{ + struct mv88e6xxx_port *mv88e6xxx_port = &chip->ports[port]; + struct mv88e6352_serdes_hw_stat *stat; + u64 value; + int i; + + if (!mv88e6352_port_has_serdes(chip, port)) + return; + + BUILD_BUG_ON(ARRAY_SIZE(mv88e6352_serdes_hw_stats) > + ARRAY_SIZE(mv88e6xxx_port->serdes_stats)); + + for (i = 0; i < ARRAY_SIZE(mv88e6352_serdes_hw_stats); i++) { + stat = &mv88e6352_serdes_hw_stats[i]; + value = mv88e6352_serdes_get_stat(chip, stat); + mv88e6xxx_port->serdes_stats[i] += value; + data[i] = mv88e6xxx_port->serdes_stats[i]; + } +} + /* Set the power on/off for 10GBASE-R and 10GBASE-X4/X2 */ static int mv88e6390_serdes_10g(struct mv88e6xxx_chip *chip, int addr, bool on) { |