diff options
Diffstat (limited to 'drivers/net/dsa/mv88e6xxx.c')
-rw-r--r-- | drivers/net/dsa/mv88e6xxx.c | 531 |
1 files changed, 408 insertions, 123 deletions
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c index 13572cc24c6d..fc8d3b6ffe8e 100644 --- a/drivers/net/dsa/mv88e6xxx.c +++ b/drivers/net/dsa/mv88e6xxx.c @@ -33,11 +33,11 @@ static int mv88e6xxx_reg_wait_ready(struct mii_bus *bus, int sw_addr) int i; for (i = 0; i < 16; i++) { - ret = mdiobus_read(bus, sw_addr, 0); + ret = mdiobus_read(bus, sw_addr, SMI_CMD); if (ret < 0) return ret; - if ((ret & 0x8000) == 0) + if ((ret & SMI_CMD_BUSY) == 0) return 0; } @@ -57,7 +57,8 @@ int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg) return ret; /* Transmit the read command. */ - ret = mdiobus_write(bus, sw_addr, 0, 0x9800 | (addr << 5) | reg); + ret = mdiobus_write(bus, sw_addr, SMI_CMD, + SMI_CMD_OP_22_READ | (addr << 5) | reg); if (ret < 0) return ret; @@ -67,7 +68,7 @@ int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg) return ret; /* Read the data. */ - ret = mdiobus_read(bus, sw_addr, 1); + ret = mdiobus_read(bus, sw_addr, SMI_DATA); if (ret < 0) return ret; @@ -119,12 +120,13 @@ int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr, return ret; /* Transmit the data to write. */ - ret = mdiobus_write(bus, sw_addr, 1, val); + ret = mdiobus_write(bus, sw_addr, SMI_DATA, val); if (ret < 0) return ret; /* Transmit the write command. */ - ret = mdiobus_write(bus, sw_addr, 0, 0x9400 | (addr << 5) | reg); + ret = mdiobus_write(bus, sw_addr, SMI_CMD, + SMI_CMD_OP_22_WRITE | (addr << 5) | reg); if (ret < 0) return ret; @@ -166,26 +168,26 @@ int mv88e6xxx_reg_write(struct dsa_switch *ds, int addr, int reg, u16 val) int mv88e6xxx_config_prio(struct dsa_switch *ds) { /* Configure the IP ToS mapping registers. */ - REG_WRITE(REG_GLOBAL, 0x10, 0x0000); - REG_WRITE(REG_GLOBAL, 0x11, 0x0000); - REG_WRITE(REG_GLOBAL, 0x12, 0x5555); - REG_WRITE(REG_GLOBAL, 0x13, 0x5555); - REG_WRITE(REG_GLOBAL, 0x14, 0xaaaa); - REG_WRITE(REG_GLOBAL, 0x15, 0xaaaa); - REG_WRITE(REG_GLOBAL, 0x16, 0xffff); - REG_WRITE(REG_GLOBAL, 0x17, 0xffff); + REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_0, 0x0000); + REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_1, 0x0000); + REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_2, 0x5555); + REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_3, 0x5555); + REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_4, 0xaaaa); + REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_5, 0xaaaa); + REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_6, 0xffff); + REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_7, 0xffff); /* Configure the IEEE 802.1p priority mapping register. */ - REG_WRITE(REG_GLOBAL, 0x18, 0xfa41); + REG_WRITE(REG_GLOBAL, GLOBAL_IEEE_PRI, 0xfa41); return 0; } int mv88e6xxx_set_addr_direct(struct dsa_switch *ds, u8 *addr) { - REG_WRITE(REG_GLOBAL, 0x01, (addr[0] << 8) | addr[1]); - REG_WRITE(REG_GLOBAL, 0x02, (addr[2] << 8) | addr[3]); - REG_WRITE(REG_GLOBAL, 0x03, (addr[4] << 8) | addr[5]); + REG_WRITE(REG_GLOBAL, GLOBAL_MAC_01, (addr[0] << 8) | addr[1]); + REG_WRITE(REG_GLOBAL, GLOBAL_MAC_23, (addr[2] << 8) | addr[3]); + REG_WRITE(REG_GLOBAL, GLOBAL_MAC_45, (addr[4] << 8) | addr[5]); return 0; } @@ -199,12 +201,13 @@ int mv88e6xxx_set_addr_indirect(struct dsa_switch *ds, u8 *addr) int j; /* Write the MAC address byte. */ - REG_WRITE(REG_GLOBAL2, 0x0d, 0x8000 | (i << 8) | addr[i]); + REG_WRITE(REG_GLOBAL2, GLOBAL2_SWITCH_MAC, + GLOBAL2_SWITCH_MAC_BUSY | (i << 8) | addr[i]); /* Wait for the write to complete. */ for (j = 0; j < 16; j++) { - ret = REG_READ(REG_GLOBAL2, 0x0d); - if ((ret & 0x8000) == 0) + ret = REG_READ(REG_GLOBAL2, GLOBAL2_SWITCH_MAC); + if ((ret & GLOBAL2_SWITCH_MAC_BUSY) == 0) break; } if (j == 16) @@ -214,14 +217,17 @@ int mv88e6xxx_set_addr_indirect(struct dsa_switch *ds, u8 *addr) return 0; } -int mv88e6xxx_phy_read(struct dsa_switch *ds, int addr, int regnum) +/* Must be called with phy mutex held */ +static int _mv88e6xxx_phy_read(struct dsa_switch *ds, int addr, int regnum) { if (addr >= 0) return mv88e6xxx_reg_read(ds, addr, regnum); return 0xffff; } -int mv88e6xxx_phy_write(struct dsa_switch *ds, int addr, int regnum, u16 val) +/* Must be called with phy mutex held */ +static int _mv88e6xxx_phy_write(struct dsa_switch *ds, int addr, int regnum, + u16 val) { if (addr >= 0) return mv88e6xxx_reg_write(ds, addr, regnum, val); @@ -234,14 +240,16 @@ static int mv88e6xxx_ppu_disable(struct dsa_switch *ds) int ret; unsigned long timeout; - ret = REG_READ(REG_GLOBAL, 0x04); - REG_WRITE(REG_GLOBAL, 0x04, ret & ~0x4000); + ret = REG_READ(REG_GLOBAL, GLOBAL_CONTROL); + REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL, + ret & ~GLOBAL_CONTROL_PPU_ENABLE); timeout = jiffies + 1 * HZ; while (time_before(jiffies, timeout)) { - ret = REG_READ(REG_GLOBAL, 0x00); + ret = REG_READ(REG_GLOBAL, GLOBAL_STATUS); usleep_range(1000, 2000); - if ((ret & 0xc000) != 0xc000) + if ((ret & GLOBAL_STATUS_PPU_MASK) != + GLOBAL_STATUS_PPU_POLLING) return 0; } @@ -253,14 +261,15 @@ static int mv88e6xxx_ppu_enable(struct dsa_switch *ds) int ret; unsigned long timeout; - ret = REG_READ(REG_GLOBAL, 0x04); - REG_WRITE(REG_GLOBAL, 0x04, ret | 0x4000); + ret = REG_READ(REG_GLOBAL, GLOBAL_CONTROL); + REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL, ret | GLOBAL_CONTROL_PPU_ENABLE); timeout = jiffies + 1 * HZ; while (time_before(jiffies, timeout)) { - ret = REG_READ(REG_GLOBAL, 0x00); + ret = REG_READ(REG_GLOBAL, GLOBAL_STATUS); usleep_range(1000, 2000); - if ((ret & 0xc000) == 0xc000) + if ((ret & GLOBAL_STATUS_PPU_MASK) == + GLOBAL_STATUS_PPU_POLLING) return 0; } @@ -381,11 +390,12 @@ void mv88e6xxx_poll_link(struct dsa_switch *ds) link = 0; if (dev->flags & IFF_UP) { - port_status = mv88e6xxx_reg_read(ds, REG_PORT(i), 0x00); + port_status = mv88e6xxx_reg_read(ds, REG_PORT(i), + PORT_STATUS); if (port_status < 0) continue; - link = !!(port_status & 0x0800); + link = !!(port_status & PORT_STATUS_LINK); } if (!link) { @@ -396,22 +406,22 @@ void mv88e6xxx_poll_link(struct dsa_switch *ds) continue; } - switch (port_status & 0x0300) { - case 0x0000: + switch (port_status & PORT_STATUS_SPEED_MASK) { + case PORT_STATUS_SPEED_10: speed = 10; break; - case 0x0100: + case PORT_STATUS_SPEED_100: speed = 100; break; - case 0x0200: + case PORT_STATUS_SPEED_1000: speed = 1000; break; default: speed = -1; break; } - duplex = (port_status & 0x0400) ? 1 : 0; - fc = (port_status & 0x8000) ? 1 : 0; + duplex = (port_status & PORT_STATUS_DUPLEX) ? 1 : 0; + fc = (port_status & PORT_STATUS_PAUSE_EN) ? 1 : 0; if (!netif_carrier_ok(dev)) { netdev_info(dev, @@ -424,14 +434,27 @@ void mv88e6xxx_poll_link(struct dsa_switch *ds) } } +static bool mv88e6xxx_6352_family(struct dsa_switch *ds) +{ + struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); + + switch (ps->id) { + case PORT_SWITCH_ID_6352: + case PORT_SWITCH_ID_6172: + case PORT_SWITCH_ID_6176: + return true; + } + return false; +} + static int mv88e6xxx_stats_wait(struct dsa_switch *ds) { int ret; int i; for (i = 0; i < 10; i++) { - ret = REG_READ(REG_GLOBAL, 0x1d); - if ((ret & 0x8000) == 0) + ret = REG_READ(REG_GLOBAL, GLOBAL_STATS_OP); + if ((ret & GLOBAL_STATS_OP_BUSY) == 0) return 0; } @@ -442,8 +465,13 @@ static int mv88e6xxx_stats_snapshot(struct dsa_switch *ds, int port) { int ret; + if (mv88e6xxx_6352_family(ds)) + port = (port + 1) << 5; + /* Snapshot the hardware statistics counters for this port. */ - REG_WRITE(REG_GLOBAL, 0x1d, 0xdc00 | port); + REG_WRITE(REG_GLOBAL, GLOBAL_STATS_OP, + GLOBAL_STATS_OP_CAPTURE_PORT | + GLOBAL_STATS_OP_HIST_RX_TX | port); /* Wait for the snapshotting to complete. */ ret = mv88e6xxx_stats_wait(ds); @@ -460,7 +488,9 @@ static void mv88e6xxx_stats_read(struct dsa_switch *ds, int stat, u32 *val) *val = 0; - ret = mv88e6xxx_reg_write(ds, REG_GLOBAL, 0x1d, 0xcc00 | stat); + ret = mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_STATS_OP, + GLOBAL_STATS_OP_READ_CAPTURED | + GLOBAL_STATS_OP_HIST_RX_TX | stat); if (ret < 0) return; @@ -468,22 +498,77 @@ static void mv88e6xxx_stats_read(struct dsa_switch *ds, int stat, u32 *val) if (ret < 0) return; - ret = mv88e6xxx_reg_read(ds, REG_GLOBAL, 0x1e); + ret = mv88e6xxx_reg_read(ds, REG_GLOBAL, GLOBAL_STATS_COUNTER_32); if (ret < 0) return; _val = ret << 16; - ret = mv88e6xxx_reg_read(ds, REG_GLOBAL, 0x1f); + ret = mv88e6xxx_reg_read(ds, REG_GLOBAL, GLOBAL_STATS_COUNTER_01); if (ret < 0) return; *val = _val | ret; } -void mv88e6xxx_get_strings(struct dsa_switch *ds, - int nr_stats, struct mv88e6xxx_hw_stat *stats, - int port, uint8_t *data) +static struct mv88e6xxx_hw_stat mv88e6xxx_hw_stats[] = { + { "in_good_octets", 8, 0x00, }, + { "in_bad_octets", 4, 0x02, }, + { "in_unicast", 4, 0x04, }, + { "in_broadcasts", 4, 0x06, }, + { "in_multicasts", 4, 0x07, }, + { "in_pause", 4, 0x16, }, + { "in_undersize", 4, 0x18, }, + { "in_fragments", 4, 0x19, }, + { "in_oversize", 4, 0x1a, }, + { "in_jabber", 4, 0x1b, }, + { "in_rx_error", 4, 0x1c, }, + { "in_fcs_error", 4, 0x1d, }, + { "out_octets", 8, 0x0e, }, + { "out_unicast", 4, 0x10, }, + { "out_broadcasts", 4, 0x13, }, + { "out_multicasts", 4, 0x12, }, + { "out_pause", 4, 0x15, }, + { "excessive", 4, 0x11, }, + { "collisions", 4, 0x1e, }, + { "deferred", 4, 0x05, }, + { "single", 4, 0x14, }, + { "multiple", 4, 0x17, }, + { "out_fcs_error", 4, 0x03, }, + { "late", 4, 0x1f, }, + { "hist_64bytes", 4, 0x08, }, + { "hist_65_127bytes", 4, 0x09, }, + { "hist_128_255bytes", 4, 0x0a, }, + { "hist_256_511bytes", 4, 0x0b, }, + { "hist_512_1023bytes", 4, 0x0c, }, + { "hist_1024_max_bytes", 4, 0x0d, }, + /* Not all devices have the following counters */ + { "sw_in_discards", 4, 0x110, }, + { "sw_in_filtered", 2, 0x112, }, + { "sw_out_filtered", 2, 0x113, }, + +}; + +static bool have_sw_in_discards(struct dsa_switch *ds) +{ + struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); + + switch (ps->id) { + case PORT_SWITCH_ID_6095: case PORT_SWITCH_ID_6161: + case PORT_SWITCH_ID_6165: case PORT_SWITCH_ID_6171: + case PORT_SWITCH_ID_6172: case PORT_SWITCH_ID_6176: + case PORT_SWITCH_ID_6182: case PORT_SWITCH_ID_6185: + case PORT_SWITCH_ID_6352: + return true; + default: + return false; + } +} + +static void _mv88e6xxx_get_strings(struct dsa_switch *ds, + int nr_stats, + struct mv88e6xxx_hw_stat *stats, + int port, uint8_t *data) { int i; @@ -493,9 +578,10 @@ void mv88e6xxx_get_strings(struct dsa_switch *ds, } } -void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds, - int nr_stats, struct mv88e6xxx_hw_stat *stats, - int port, uint64_t *data) +static void _mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds, + int nr_stats, + struct mv88e6xxx_hw_stat *stats, + int port, uint64_t *data) { struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); int ret; @@ -543,6 +629,39 @@ error: mutex_unlock(&ps->stats_mutex); } +/* All the statistics in the table */ +void +mv88e6xxx_get_strings(struct dsa_switch *ds, int port, uint8_t *data) +{ + if (have_sw_in_discards(ds)) + _mv88e6xxx_get_strings(ds, ARRAY_SIZE(mv88e6xxx_hw_stats), + mv88e6xxx_hw_stats, port, data); + else + _mv88e6xxx_get_strings(ds, ARRAY_SIZE(mv88e6xxx_hw_stats) - 3, + mv88e6xxx_hw_stats, port, data); +} + +int mv88e6xxx_get_sset_count(struct dsa_switch *ds) +{ + if (have_sw_in_discards(ds)) + return ARRAY_SIZE(mv88e6xxx_hw_stats); + return ARRAY_SIZE(mv88e6xxx_hw_stats) - 3; +} + +void +mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds, + int port, uint64_t *data) +{ + if (have_sw_in_discards(ds)) + _mv88e6xxx_get_ethtool_stats( + ds, ARRAY_SIZE(mv88e6xxx_hw_stats), + mv88e6xxx_hw_stats, port, data); + else + _mv88e6xxx_get_ethtool_stats( + ds, ARRAY_SIZE(mv88e6xxx_hw_stats) - 3, + mv88e6xxx_hw_stats, port, data); +} + int mv88e6xxx_get_regs_len(struct dsa_switch *ds, int port) { return 32 * sizeof(u16); @@ -579,37 +698,37 @@ int mv88e6xxx_get_temp(struct dsa_switch *ds, int *temp) mutex_lock(&ps->phy_mutex); - ret = mv88e6xxx_phy_write(ds, 0x0, 0x16, 0x6); + ret = _mv88e6xxx_phy_write(ds, 0x0, 0x16, 0x6); if (ret < 0) goto error; /* Enable temperature sensor */ - ret = mv88e6xxx_phy_read(ds, 0x0, 0x1a); + ret = _mv88e6xxx_phy_read(ds, 0x0, 0x1a); if (ret < 0) goto error; - ret = mv88e6xxx_phy_write(ds, 0x0, 0x1a, ret | (1 << 5)); + ret = _mv88e6xxx_phy_write(ds, 0x0, 0x1a, ret | (1 << 5)); if (ret < 0) goto error; /* Wait for temperature to stabilize */ usleep_range(10000, 12000); - val = mv88e6xxx_phy_read(ds, 0x0, 0x1a); + val = _mv88e6xxx_phy_read(ds, 0x0, 0x1a); if (val < 0) { ret = val; goto error; } /* Disable temperature sensor */ - ret = mv88e6xxx_phy_write(ds, 0x0, 0x1a, ret & ~(1 << 5)); + ret = _mv88e6xxx_phy_write(ds, 0x0, 0x1a, ret & ~(1 << 5)); if (ret < 0) goto error; *temp = ((val & 0x1f) - 5) * 5; error: - mv88e6xxx_phy_write(ds, 0x0, 0x16, 0x0); + _mv88e6xxx_phy_write(ds, 0x0, 0x16, 0x0); mutex_unlock(&ps->phy_mutex); return ret; } @@ -633,17 +752,20 @@ static int mv88e6xxx_wait(struct dsa_switch *ds, int reg, int offset, u16 mask) int mv88e6xxx_phy_wait(struct dsa_switch *ds) { - return mv88e6xxx_wait(ds, REG_GLOBAL2, 0x18, 0x8000); + return mv88e6xxx_wait(ds, REG_GLOBAL2, GLOBAL2_SMI_OP, + GLOBAL2_SMI_OP_BUSY); } int mv88e6xxx_eeprom_load_wait(struct dsa_switch *ds) { - return mv88e6xxx_wait(ds, REG_GLOBAL2, 0x14, 0x0800); + return mv88e6xxx_wait(ds, REG_GLOBAL2, GLOBAL2_EEPROM_OP, + GLOBAL2_EEPROM_OP_LOAD); } int mv88e6xxx_eeprom_busy_wait(struct dsa_switch *ds) { - return mv88e6xxx_wait(ds, REG_GLOBAL2, 0x14, 0x8000); + return mv88e6xxx_wait(ds, REG_GLOBAL2, GLOBAL2_EEPROM_OP, + GLOBAL2_EEPROM_OP_BUSY); } /* Must be called with SMI lock held */ @@ -668,80 +790,87 @@ static int _mv88e6xxx_wait(struct dsa_switch *ds, int reg, int offset, u16 mask) /* Must be called with SMI lock held */ static int _mv88e6xxx_atu_wait(struct dsa_switch *ds) { - return _mv88e6xxx_wait(ds, REG_GLOBAL, 0x0b, ATU_BUSY); + return _mv88e6xxx_wait(ds, REG_GLOBAL, GLOBAL_ATU_OP, + GLOBAL_ATU_OP_BUSY); } -int mv88e6xxx_phy_read_indirect(struct dsa_switch *ds, int addr, int regnum) +/* Must be called with phy mutex held */ +static int _mv88e6xxx_phy_read_indirect(struct dsa_switch *ds, int addr, + int regnum) { int ret; - REG_WRITE(REG_GLOBAL2, 0x18, 0x9800 | (addr << 5) | regnum); + REG_WRITE(REG_GLOBAL2, GLOBAL2_SMI_OP, + GLOBAL2_SMI_OP_22_READ | (addr << 5) | regnum); ret = mv88e6xxx_phy_wait(ds); if (ret < 0) return ret; - return REG_READ(REG_GLOBAL2, 0x19); + return REG_READ(REG_GLOBAL2, GLOBAL2_SMI_DATA); } -int mv88e6xxx_phy_write_indirect(struct dsa_switch *ds, int addr, int regnum, - u16 val) +/* Must be called with phy mutex held */ +static int _mv88e6xxx_phy_write_indirect(struct dsa_switch *ds, int addr, + int regnum, u16 val) { - REG_WRITE(REG_GLOBAL2, 0x19, val); - REG_WRITE(REG_GLOBAL2, 0x18, 0x9400 | (addr << 5) | regnum); + REG_WRITE(REG_GLOBAL2, GLOBAL2_SMI_DATA, val); + REG_WRITE(REG_GLOBAL2, GLOBAL2_SMI_OP, + GLOBAL2_SMI_OP_22_WRITE | (addr << 5) | regnum); return mv88e6xxx_phy_wait(ds); } int mv88e6xxx_get_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e) { + struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); int reg; - reg = mv88e6xxx_phy_read_indirect(ds, port, 16); + mutex_lock(&ps->phy_mutex); + + reg = _mv88e6xxx_phy_read_indirect(ds, port, 16); if (reg < 0) - return -EOPNOTSUPP; + goto out; e->eee_enabled = !!(reg & 0x0200); e->tx_lpi_enabled = !!(reg & 0x0100); - reg = REG_READ(REG_PORT(port), 0); - e->eee_active = !!(reg & 0x0040); - - return 0; -} - -static int mv88e6xxx_eee_enable_set(struct dsa_switch *ds, int port, - bool eee_enabled, bool tx_lpi_enabled) -{ - int reg, nreg; - - reg = mv88e6xxx_phy_read_indirect(ds, port, 16); + reg = mv88e6xxx_reg_read(ds, REG_PORT(port), PORT_STATUS); if (reg < 0) - return reg; - - nreg = reg & ~0x0300; - if (eee_enabled) - nreg |= 0x0200; - if (tx_lpi_enabled) - nreg |= 0x0100; + goto out; - if (nreg != reg) - return mv88e6xxx_phy_write_indirect(ds, port, 16, nreg); + e->eee_active = !!(reg & PORT_STATUS_EEE); + reg = 0; - return 0; +out: + mutex_unlock(&ps->phy_mutex); + return reg; } int mv88e6xxx_set_eee(struct dsa_switch *ds, int port, struct phy_device *phydev, struct ethtool_eee *e) { + struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); + int reg; int ret; - ret = mv88e6xxx_eee_enable_set(ds, port, e->eee_enabled, - e->tx_lpi_enabled); - if (ret) - return -EOPNOTSUPP; + mutex_lock(&ps->phy_mutex); - return 0; + ret = _mv88e6xxx_phy_read_indirect(ds, port, 16); + if (ret < 0) + goto out; + + reg = ret & ~0x0300; + if (e->eee_enabled) + reg |= 0x0200; + if (e->tx_lpi_enabled) + reg |= 0x0100; + + ret = _mv88e6xxx_phy_write_indirect(ds, port, 16, reg); +out: + mutex_unlock(&ps->phy_mutex); + + return ret; } static int _mv88e6xxx_atu_cmd(struct dsa_switch *ds, int fid, u16 cmd) @@ -752,7 +881,7 @@ static int _mv88e6xxx_atu_cmd(struct dsa_switch *ds, int fid, u16 cmd) if (ret < 0) return ret; - ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL, 0x0b, cmd); + ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_ATU_OP, cmd); if (ret < 0) return ret; @@ -767,7 +896,7 @@ static int _mv88e6xxx_flush_fid(struct dsa_switch *ds, int fid) if (ret < 0) return ret; - return _mv88e6xxx_atu_cmd(ds, fid, ATU_CMD_FLUSH_NONSTATIC_FID); + return _mv88e6xxx_atu_cmd(ds, fid, GLOBAL_ATU_OP_FLUSH_NON_STATIC_DB); } static int mv88e6xxx_set_port_state(struct dsa_switch *ds, int port, u8 state) @@ -778,23 +907,25 @@ static int mv88e6xxx_set_port_state(struct dsa_switch *ds, int port, u8 state) mutex_lock(&ps->smi_mutex); - reg = _mv88e6xxx_reg_read(ds, REG_PORT(port), 0x04); + reg = _mv88e6xxx_reg_read(ds, REG_PORT(port), PORT_CONTROL); if (reg < 0) goto abort; - oldstate = reg & PSTATE_MASK; + oldstate = reg & PORT_CONTROL_STATE_MASK; if (oldstate != state) { /* Flush forwarding database if we're moving a port * from Learning or Forwarding state to Disabled or * Blocking or Listening state. */ - if (oldstate >= PSTATE_LEARNING && state <= PSTATE_BLOCKING) { + if (oldstate >= PORT_CONTROL_STATE_LEARNING && + state <= PORT_CONTROL_STATE_BLOCKING) { ret = _mv88e6xxx_flush_fid(ds, ps->fid[port]); if (ret) goto abort; } - reg = (reg & ~PSTATE_MASK) | state; - ret = _mv88e6xxx_reg_write(ds, REG_PORT(port), 0x04, reg); + reg = (reg & ~PORT_CONTROL_STATE_MASK) | state; + ret = _mv88e6xxx_reg_write(ds, REG_PORT(port), PORT_CONTROL, + reg); } abort: @@ -815,7 +946,7 @@ static int _mv88e6xxx_update_port_config(struct dsa_switch *ds, int port) reg |= (ps->bridge_mask[fid] | (1 << dsa_upstream_port(ds))) & ~(1 << port); - return _mv88e6xxx_reg_write(ds, REG_PORT(port), 0x06, reg); + return _mv88e6xxx_reg_write(ds, REG_PORT(port), PORT_BASE_VLAN, reg); } /* Must be called with smi lock held */ @@ -927,18 +1058,18 @@ int mv88e6xxx_port_stp_update(struct dsa_switch *ds, int port, u8 state) switch (state) { case BR_STATE_DISABLED: - stp_state = PSTATE_DISABLED; + stp_state = PORT_CONTROL_STATE_DISABLED; break; case BR_STATE_BLOCKING: case BR_STATE_LISTENING: - stp_state = PSTATE_BLOCKING; + stp_state = PORT_CONTROL_STATE_BLOCKING; break; case BR_STATE_LEARNING: - stp_state = PSTATE_LEARNING; + stp_state = PORT_CONTROL_STATE_LEARNING; break; case BR_STATE_FORWARDING: default: - stp_state = PSTATE_FORWARDING; + stp_state = PORT_CONTROL_STATE_FORWARDING; break; } @@ -960,8 +1091,9 @@ static int __mv88e6xxx_write_addr(struct dsa_switch *ds, int i, ret; for (i = 0; i < 3; i++) { - ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL, 0x0d + i, - (addr[i * 2] << 8) | addr[i * 2 + 1]); + ret = _mv88e6xxx_reg_write( + ds, REG_GLOBAL, GLOBAL_ATU_MAC_01 + i, + (addr[i * 2] << 8) | addr[i * 2 + 1]); if (ret < 0) return ret; } @@ -974,7 +1106,8 @@ static int __mv88e6xxx_read_addr(struct dsa_switch *ds, unsigned char *addr) int i, ret; for (i = 0; i < 3; i++) { - ret = _mv88e6xxx_reg_read(ds, REG_GLOBAL, 0x0d + i); + ret = _mv88e6xxx_reg_read(ds, REG_GLOBAL, + GLOBAL_ATU_MAC_01 + i); if (ret < 0) return ret; addr[i * 2] = ret >> 8; @@ -999,12 +1132,12 @@ static int __mv88e6xxx_port_fdb_cmd(struct dsa_switch *ds, int port, if (ret < 0) return ret; - ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL, 0x0c, + ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_ATU_DATA, (0x10 << port) | state); if (ret) return ret; - ret = _mv88e6xxx_atu_cmd(ds, fid, ATU_CMD_LOAD_FID); + ret = _mv88e6xxx_atu_cmd(ds, fid, GLOBAL_ATU_OP_LOAD_DB); return ret; } @@ -1013,7 +1146,8 @@ int mv88e6xxx_port_fdb_add(struct dsa_switch *ds, int port, const unsigned char *addr, u16 vid) { int state = is_multicast_ether_addr(addr) ? - FDB_STATE_MC_STATIC : FDB_STATE_STATIC; + GLOBAL_ATU_DATA_STATE_MC_STATIC : + GLOBAL_ATU_DATA_STATE_UC_STATIC; struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); int ret; @@ -1031,7 +1165,8 @@ int mv88e6xxx_port_fdb_del(struct dsa_switch *ds, int port, int ret; mutex_lock(&ps->smi_mutex); - ret = __mv88e6xxx_port_fdb_cmd(ds, port, addr, FDB_STATE_UNUSED); + ret = __mv88e6xxx_port_fdb_cmd(ds, port, addr, + GLOBAL_ATU_DATA_STATE_UNUSED); mutex_unlock(&ps->smi_mutex); return ret; @@ -1053,15 +1188,15 @@ static int __mv88e6xxx_port_getnext(struct dsa_switch *ds, int port, return ret; do { - ret = _mv88e6xxx_atu_cmd(ds, fid, ATU_CMD_GETNEXT_FID); + ret = _mv88e6xxx_atu_cmd(ds, fid, GLOBAL_ATU_OP_GET_NEXT_DB); if (ret < 0) return ret; - ret = _mv88e6xxx_reg_read(ds, REG_GLOBAL, 0x0c); + ret = _mv88e6xxx_reg_read(ds, REG_GLOBAL, GLOBAL_ATU_DATA); if (ret < 0) return ret; - state = ret & FDB_STATE_MASK; - if (state == FDB_STATE_UNUSED) + state = ret & GLOBAL_ATU_DATA_STATE_MASK; + if (state == GLOBAL_ATU_DATA_STATE_UNUSED) return -ENOENT; } while (!(((ret >> 4) & 0xff) & (1 << port))); @@ -1070,7 +1205,8 @@ static int __mv88e6xxx_port_getnext(struct dsa_switch *ds, int port, return ret; *is_static = state == (is_multicast_ether_addr(addr) ? - FDB_STATE_MC_STATIC : FDB_STATE_STATIC); + GLOBAL_ATU_DATA_STATE_MC_STATIC : + GLOBAL_ATU_DATA_STATE_UC_STATIC); return 0; } @@ -1115,7 +1251,8 @@ int mv88e6xxx_setup_port_common(struct dsa_switch *ds, int port) /* Port Control 1: disable trunking, disable sending * learning messages to this port. */ - ret = _mv88e6xxx_reg_write(ds, REG_PORT(port), 0x05, 0x0000); + ret = _mv88e6xxx_reg_write(ds, REG_PORT(port), PORT_DEFAULT_VLAN, + 0x0000); if (ret) goto abort; @@ -1152,7 +1289,7 @@ int mv88e6xxx_setup_common(struct dsa_switch *ds) mutex_init(&ps->stats_mutex); mutex_init(&ps->phy_mutex); - ps->id = REG_READ(REG_PORT(0), 0x03) & 0xfff0; + ps->id = REG_READ(REG_PORT(0), PORT_SWITCH_ID) & 0xfff0; ps->fid_mask = (1 << DSA_MAX_PORTS) - 1; @@ -1161,6 +1298,154 @@ int mv88e6xxx_setup_common(struct dsa_switch *ds) return 0; } +int mv88e6xxx_switch_reset(struct dsa_switch *ds, bool ppu_active) +{ + struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); + u16 is_reset = (ppu_active ? 0x8800 : 0xc800); + unsigned long timeout; + int ret; + int i; + + /* Set all ports to the disabled state. */ + for (i = 0; i < ps->num_ports; i++) { + ret = REG_READ(REG_PORT(i), PORT_CONTROL); + REG_WRITE(REG_PORT(i), PORT_CONTROL, ret & 0xfffc); + } + + /* Wait for transmit queues to drain. */ + usleep_range(2000, 4000); + + /* Reset the switch. Keep the PPU active if requested. The PPU + * needs to be active to support indirect phy register access + * through global registers 0x18 and 0x19. + */ + if (ppu_active) + REG_WRITE(REG_GLOBAL, 0x04, 0xc000); + else + REG_WRITE(REG_GLOBAL, 0x04, 0xc400); + + /* Wait up to one second for reset to complete. */ + timeout = jiffies + 1 * HZ; + while (time_before(jiffies, timeout)) { + ret = REG_READ(REG_GLOBAL, 0x00); + if ((ret & is_reset) == is_reset) + break; + usleep_range(1000, 2000); + } + if (time_after(jiffies, timeout)) + return -ETIMEDOUT; + + return 0; +} + +int mv88e6xxx_phy_page_read(struct dsa_switch *ds, int port, int page, int reg) +{ + struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); + int ret; + + mutex_lock(&ps->phy_mutex); + ret = _mv88e6xxx_phy_write_indirect(ds, port, 0x16, page); + if (ret < 0) + goto error; + ret = _mv88e6xxx_phy_read_indirect(ds, port, reg); +error: + _mv88e6xxx_phy_write_indirect(ds, port, 0x16, 0x0); + mutex_unlock(&ps->phy_mutex); + return ret; +} + +int mv88e6xxx_phy_page_write(struct dsa_switch *ds, int port, int page, + int reg, int val) +{ + struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); + int ret; + + mutex_lock(&ps->phy_mutex); + ret = _mv88e6xxx_phy_write_indirect(ds, port, 0x16, page); + if (ret < 0) + goto error; + + ret = _mv88e6xxx_phy_write_indirect(ds, port, reg, val); +error: + _mv88e6xxx_phy_write_indirect(ds, port, 0x16, 0x0); + mutex_unlock(&ps->phy_mutex); + return ret; +} + +static int mv88e6xxx_port_to_phy_addr(struct dsa_switch *ds, int port) +{ + struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); + + if (port >= 0 && port < ps->num_ports) + return port; + return -EINVAL; +} + +int +mv88e6xxx_phy_read(struct dsa_switch *ds, int port, int regnum) +{ + struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); + int addr = mv88e6xxx_port_to_phy_addr(ds, port); + int ret; + + if (addr < 0) + return addr; + + mutex_lock(&ps->phy_mutex); + ret = _mv88e6xxx_phy_read(ds, addr, regnum); + mutex_unlock(&ps->phy_mutex); + return ret; +} + +int +mv88e6xxx_phy_write(struct dsa_switch *ds, int port, int regnum, u16 val) +{ + struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); + int addr = mv88e6xxx_port_to_phy_addr(ds, port); + int ret; + + if (addr < 0) + return addr; + + mutex_lock(&ps->phy_mutex); + ret = _mv88e6xxx_phy_write(ds, addr, regnum, val); + mutex_unlock(&ps->phy_mutex); + return ret; +} + +int +mv88e6xxx_phy_read_indirect(struct dsa_switch *ds, int port, int regnum) +{ + struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); + int addr = mv88e6xxx_port_to_phy_addr(ds, port); + int ret; + + if (addr < 0) + return addr; + + mutex_lock(&ps->phy_mutex); + ret = _mv88e6xxx_phy_read_indirect(ds, addr, regnum); + mutex_unlock(&ps->phy_mutex); + return ret; +} + +int +mv88e6xxx_phy_write_indirect(struct dsa_switch *ds, int port, int regnum, + u16 val) +{ + struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); + int addr = mv88e6xxx_port_to_phy_addr(ds, port); + int ret; + + if (addr < 0) + return addr; + + mutex_lock(&ps->phy_mutex); + ret = _mv88e6xxx_phy_write_indirect(ds, addr, regnum, val); + mutex_unlock(&ps->phy_mutex); + return ret; +} + static int __init mv88e6xxx_init(void) { #if IS_ENABLED(CONFIG_NET_DSA_MV88E6131) |