| /* |
| * Marvell 88e6xxx Ethernet switch single-chip support |
| * |
| * Copyright (c) 2008 Marvell Semiconductor |
| * |
| * Copyright (c) 2016 Andrew Lunn <andrew@lunn.ch> |
| * |
| * Copyright (c) 2016-2017 Savoir-faire Linux Inc. |
| * Vivien Didelot <vivien.didelot@savoirfairelinux.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| */ |
| |
| #include <linux/delay.h> |
| #include <linux/etherdevice.h> |
| #include <linux/ethtool.h> |
| #include <linux/if_bridge.h> |
| #include <linux/interrupt.h> |
| #include <linux/irq.h> |
| #include <linux/irqdomain.h> |
| #include <linux/jiffies.h> |
| #include <linux/list.h> |
| #include <linux/mdio.h> |
| #include <linux/module.h> |
| #include <linux/of_device.h> |
| #include <linux/of_irq.h> |
| #include <linux/of_mdio.h> |
| #include <linux/platform_data/mv88e6xxx.h> |
| #include <linux/netdevice.h> |
| #include <linux/gpio/consumer.h> |
| #include <linux/phy.h> |
| #include <linux/phylink.h> |
| #include <net/dsa.h> |
| |
| #include "chip.h" |
| #include "global1.h" |
| #include "global2.h" |
| #include "hwtstamp.h" |
| #include "phy.h" |
| #include "port.h" |
| #include "ptp.h" |
| #include "serdes.h" |
| |
| static void assert_reg_lock(struct mv88e6xxx_chip *chip) |
| { |
| if (unlikely(!mutex_is_locked(&chip->reg_lock))) { |
| dev_err(chip->dev, "Switch registers lock not held!\n"); |
| dump_stack(); |
| } |
| } |
| |
| /* The switch ADDR[4:1] configuration pins define the chip SMI device address |
| * (ADDR[0] is always zero, thus only even SMI addresses can be strapped). |
| * |
| * When ADDR is all zero, the chip uses Single-chip Addressing Mode, assuming it |
| * is the only device connected to the SMI master. In this mode it responds to |
| * all 32 possible SMI addresses, and thus maps directly the internal devices. |
| * |
| * When ADDR is non-zero, the chip uses Multi-chip Addressing Mode, allowing |
| * multiple devices to share the SMI interface. In this mode it responds to only |
| * 2 registers, used to indirectly access the internal SMI devices. |
| */ |
| |
| static int mv88e6xxx_smi_read(struct mv88e6xxx_chip *chip, |
| int addr, int reg, u16 *val) |
| { |
| if (!chip->smi_ops) |
| return -EOPNOTSUPP; |
| |
| return chip->smi_ops->read(chip, addr, reg, val); |
| } |
| |
| static int mv88e6xxx_smi_write(struct mv88e6xxx_chip *chip, |
| int addr, int reg, u16 val) |
| { |
| if (!chip->smi_ops) |
| return -EOPNOTSUPP; |
| |
| return chip->smi_ops->write(chip, addr, reg, val); |
| } |
| |
| static int mv88e6xxx_smi_single_chip_read(struct mv88e6xxx_chip *chip, |
| int addr, int reg, u16 *val) |
| { |
| int ret; |
| |
| ret = mdiobus_read_nested(chip->bus, addr, reg); |
| if (ret < 0) |
| return ret; |
| |
| *val = ret & 0xffff; |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_smi_single_chip_write(struct mv88e6xxx_chip *chip, |
| int addr, int reg, u16 val) |
| { |
| int ret; |
| |
| ret = mdiobus_write_nested(chip->bus, addr, reg, val); |
| if (ret < 0) |
| return ret; |
| |
| return 0; |
| } |
| |
| static const struct mv88e6xxx_bus_ops mv88e6xxx_smi_single_chip_ops = { |
| .read = mv88e6xxx_smi_single_chip_read, |
| .write = mv88e6xxx_smi_single_chip_write, |
| }; |
| |
| static int mv88e6xxx_smi_multi_chip_wait(struct mv88e6xxx_chip *chip) |
| { |
| int ret; |
| int i; |
| |
| for (i = 0; i < 16; i++) { |
| ret = mdiobus_read_nested(chip->bus, chip->sw_addr, SMI_CMD); |
| if (ret < 0) |
| return ret; |
| |
| if ((ret & SMI_CMD_BUSY) == 0) |
| return 0; |
| } |
| |
| return -ETIMEDOUT; |
| } |
| |
| static int mv88e6xxx_smi_multi_chip_read(struct mv88e6xxx_chip *chip, |
| int addr, int reg, u16 *val) |
| { |
| int ret; |
| |
| /* Wait for the bus to become free. */ |
| ret = mv88e6xxx_smi_multi_chip_wait(chip); |
| if (ret < 0) |
| return ret; |
| |
| /* Transmit the read command. */ |
| ret = mdiobus_write_nested(chip->bus, chip->sw_addr, SMI_CMD, |
| SMI_CMD_OP_22_READ | (addr << 5) | reg); |
| if (ret < 0) |
| return ret; |
| |
| /* Wait for the read command to complete. */ |
| ret = mv88e6xxx_smi_multi_chip_wait(chip); |
| if (ret < 0) |
| return ret; |
| |
| /* Read the data. */ |
| ret = mdiobus_read_nested(chip->bus, chip->sw_addr, SMI_DATA); |
| if (ret < 0) |
| return ret; |
| |
| *val = ret & 0xffff; |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_smi_multi_chip_write(struct mv88e6xxx_chip *chip, |
| int addr, int reg, u16 val) |
| { |
| int ret; |
| |
| /* Wait for the bus to become free. */ |
| ret = mv88e6xxx_smi_multi_chip_wait(chip); |
| if (ret < 0) |
| return ret; |
| |
| /* Transmit the data to write. */ |
| ret = mdiobus_write_nested(chip->bus, chip->sw_addr, SMI_DATA, val); |
| if (ret < 0) |
| return ret; |
| |
| /* Transmit the write command. */ |
| ret = mdiobus_write_nested(chip->bus, chip->sw_addr, SMI_CMD, |
| SMI_CMD_OP_22_WRITE | (addr << 5) | reg); |
| if (ret < 0) |
| return ret; |
| |
| /* Wait for the write command to complete. */ |
| ret = mv88e6xxx_smi_multi_chip_wait(chip); |
| if (ret < 0) |
| return ret; |
| |
| return 0; |
| } |
| |
| static const struct mv88e6xxx_bus_ops mv88e6xxx_smi_multi_chip_ops = { |
| .read = mv88e6xxx_smi_multi_chip_read, |
| .write = mv88e6xxx_smi_multi_chip_write, |
| }; |
| |
| int mv88e6xxx_read(struct mv88e6xxx_chip *chip, int addr, int reg, u16 *val) |
| { |
| int err; |
| |
| assert_reg_lock(chip); |
| |
| err = mv88e6xxx_smi_read(chip, addr, reg, val); |
| if (err) |
| return err; |
| |
| dev_dbg(chip->dev, "<- addr: 0x%.2x reg: 0x%.2x val: 0x%.4x\n", |
| addr, reg, *val); |
| |
| return 0; |
| } |
| |
| int mv88e6xxx_write(struct mv88e6xxx_chip *chip, int addr, int reg, u16 val) |
| { |
| int err; |
| |
| assert_reg_lock(chip); |
| |
| err = mv88e6xxx_smi_write(chip, addr, reg, val); |
| if (err) |
| return err; |
| |
| dev_dbg(chip->dev, "-> addr: 0x%.2x reg: 0x%.2x val: 0x%.4x\n", |
| addr, reg, val); |
| |
| return 0; |
| } |
| |
| struct mii_bus *mv88e6xxx_default_mdio_bus(struct mv88e6xxx_chip *chip) |
| { |
| struct mv88e6xxx_mdio_bus *mdio_bus; |
| |
| mdio_bus = list_first_entry(&chip->mdios, struct mv88e6xxx_mdio_bus, |
| list); |
| if (!mdio_bus) |
| return NULL; |
| |
| return mdio_bus->bus; |
| } |
| |
| static void mv88e6xxx_g1_irq_mask(struct irq_data *d) |
| { |
| struct mv88e6xxx_chip *chip = irq_data_get_irq_chip_data(d); |
| unsigned int n = d->hwirq; |
| |
| chip->g1_irq.masked |= (1 << n); |
| } |
| |
| static void mv88e6xxx_g1_irq_unmask(struct irq_data *d) |
| { |
| struct mv88e6xxx_chip *chip = irq_data_get_irq_chip_data(d); |
| unsigned int n = d->hwirq; |
| |
| chip->g1_irq.masked &= ~(1 << n); |
| } |
| |
| static irqreturn_t mv88e6xxx_g1_irq_thread_work(struct mv88e6xxx_chip *chip) |
| { |
| unsigned int nhandled = 0; |
| unsigned int sub_irq; |
| unsigned int n; |
| u16 reg; |
| u16 ctl1; |
| int err; |
| |
| mutex_lock(&chip->reg_lock); |
| err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_STS, ®); |
| mutex_unlock(&chip->reg_lock); |
| |
| if (err) |
| goto out; |
| |
| do { |
| for (n = 0; n < chip->g1_irq.nirqs; ++n) { |
| if (reg & (1 << n)) { |
| sub_irq = irq_find_mapping(chip->g1_irq.domain, |
| n); |
| handle_nested_irq(sub_irq); |
| ++nhandled; |
| } |
| } |
| |
| mutex_lock(&chip->reg_lock); |
| err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_CTL1, &ctl1); |
| if (err) |
| goto unlock; |
| err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_STS, ®); |
| unlock: |
| mutex_unlock(&chip->reg_lock); |
| if (err) |
| goto out; |
| ctl1 &= GENMASK(chip->g1_irq.nirqs, 0); |
| } while (reg & ctl1); |
| |
| out: |
| return (nhandled > 0 ? IRQ_HANDLED : IRQ_NONE); |
| } |
| |
| static irqreturn_t mv88e6xxx_g1_irq_thread_fn(int irq, void *dev_id) |
| { |
| struct mv88e6xxx_chip *chip = dev_id; |
| |
| return mv88e6xxx_g1_irq_thread_work(chip); |
| } |
| |
| static void mv88e6xxx_g1_irq_bus_lock(struct irq_data *d) |
| { |
| struct mv88e6xxx_chip *chip = irq_data_get_irq_chip_data(d); |
| |
| mutex_lock(&chip->reg_lock); |
| } |
| |
| static void mv88e6xxx_g1_irq_bus_sync_unlock(struct irq_data *d) |
| { |
| struct mv88e6xxx_chip *chip = irq_data_get_irq_chip_data(d); |
| u16 mask = GENMASK(chip->g1_irq.nirqs, 0); |
| u16 reg; |
| int err; |
| |
| err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_CTL1, ®); |
| if (err) |
| goto out; |
| |
| reg &= ~mask; |
| reg |= (~chip->g1_irq.masked & mask); |
| |
| err = mv88e6xxx_g1_write(chip, MV88E6XXX_G1_CTL1, reg); |
| if (err) |
| goto out; |
| |
| out: |
| mutex_unlock(&chip->reg_lock); |
| } |
| |
| static const struct irq_chip mv88e6xxx_g1_irq_chip = { |
| .name = "mv88e6xxx-g1", |
| .irq_mask = mv88e6xxx_g1_irq_mask, |
| .irq_unmask = mv88e6xxx_g1_irq_unmask, |
| .irq_bus_lock = mv88e6xxx_g1_irq_bus_lock, |
| .irq_bus_sync_unlock = mv88e6xxx_g1_irq_bus_sync_unlock, |
| }; |
| |
| static int mv88e6xxx_g1_irq_domain_map(struct irq_domain *d, |
| unsigned int irq, |
| irq_hw_number_t hwirq) |
| { |
| struct mv88e6xxx_chip *chip = d->host_data; |
| |
| irq_set_chip_data(irq, d->host_data); |
| irq_set_chip_and_handler(irq, &chip->g1_irq.chip, handle_level_irq); |
| irq_set_noprobe(irq); |
| |
| return 0; |
| } |
| |
| static const struct irq_domain_ops mv88e6xxx_g1_irq_domain_ops = { |
| .map = mv88e6xxx_g1_irq_domain_map, |
| .xlate = irq_domain_xlate_twocell, |
| }; |
| |
| /* To be called with reg_lock held */ |
| static void mv88e6xxx_g1_irq_free_common(struct mv88e6xxx_chip *chip) |
| { |
| int irq, virq; |
| u16 mask; |
| |
| mv88e6xxx_g1_read(chip, MV88E6XXX_G1_CTL1, &mask); |
| mask &= ~GENMASK(chip->g1_irq.nirqs, 0); |
| mv88e6xxx_g1_write(chip, MV88E6XXX_G1_CTL1, mask); |
| |
| for (irq = 0; irq < chip->g1_irq.nirqs; irq++) { |
| virq = irq_find_mapping(chip->g1_irq.domain, irq); |
| irq_dispose_mapping(virq); |
| } |
| |
| irq_domain_remove(chip->g1_irq.domain); |
| } |
| |
| static void mv88e6xxx_g1_irq_free(struct mv88e6xxx_chip *chip) |
| { |
| /* |
| * free_irq must be called without reg_lock taken because the irq |
| * handler takes this lock, too. |
| */ |
| free_irq(chip->irq, chip); |
| |
| mutex_lock(&chip->reg_lock); |
| mv88e6xxx_g1_irq_free_common(chip); |
| mutex_unlock(&chip->reg_lock); |
| } |
| |
| static int mv88e6xxx_g1_irq_setup_common(struct mv88e6xxx_chip *chip) |
| { |
| int err, irq, virq; |
| u16 reg, mask; |
| |
| chip->g1_irq.nirqs = chip->info->g1_irqs; |
| chip->g1_irq.domain = irq_domain_add_simple( |
| NULL, chip->g1_irq.nirqs, 0, |
| &mv88e6xxx_g1_irq_domain_ops, chip); |
| if (!chip->g1_irq.domain) |
| return -ENOMEM; |
| |
| for (irq = 0; irq < chip->g1_irq.nirqs; irq++) |
| irq_create_mapping(chip->g1_irq.domain, irq); |
| |
| chip->g1_irq.chip = mv88e6xxx_g1_irq_chip; |
| chip->g1_irq.masked = ~0; |
| |
| err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_CTL1, &mask); |
| if (err) |
| goto out_mapping; |
| |
| mask &= ~GENMASK(chip->g1_irq.nirqs, 0); |
| |
| err = mv88e6xxx_g1_write(chip, MV88E6XXX_G1_CTL1, mask); |
| if (err) |
| goto out_disable; |
| |
| /* Reading the interrupt status clears (most of) them */ |
| err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_STS, ®); |
| if (err) |
| goto out_disable; |
| |
| return 0; |
| |
| out_disable: |
| mask &= ~GENMASK(chip->g1_irq.nirqs, 0); |
| mv88e6xxx_g1_write(chip, MV88E6XXX_G1_CTL1, mask); |
| |
| out_mapping: |
| for (irq = 0; irq < 16; irq++) { |
| virq = irq_find_mapping(chip->g1_irq.domain, irq); |
| irq_dispose_mapping(virq); |
| } |
| |
| irq_domain_remove(chip->g1_irq.domain); |
| |
| return err; |
| } |
| |
| static int mv88e6xxx_g1_irq_setup(struct mv88e6xxx_chip *chip) |
| { |
| static struct lock_class_key lock_key; |
| static struct lock_class_key request_key; |
| int err; |
| |
| err = mv88e6xxx_g1_irq_setup_common(chip); |
| if (err) |
| return err; |
| |
| /* These lock classes tells lockdep that global 1 irqs are in |
| * a different category than their parent GPIO, so it won't |
| * report false recursion. |
| */ |
| irq_set_lockdep_class(chip->irq, &lock_key, &request_key); |
| |
| mutex_unlock(&chip->reg_lock); |
| err = request_threaded_irq(chip->irq, NULL, |
| mv88e6xxx_g1_irq_thread_fn, |
| IRQF_ONESHOT, |
| dev_name(chip->dev), chip); |
| mutex_lock(&chip->reg_lock); |
| if (err) |
| mv88e6xxx_g1_irq_free_common(chip); |
| |
| return err; |
| } |
| |
| static void mv88e6xxx_irq_poll(struct kthread_work *work) |
| { |
| struct mv88e6xxx_chip *chip = container_of(work, |
| struct mv88e6xxx_chip, |
| irq_poll_work.work); |
| mv88e6xxx_g1_irq_thread_work(chip); |
| |
| kthread_queue_delayed_work(chip->kworker, &chip->irq_poll_work, |
| msecs_to_jiffies(100)); |
| } |
| |
| static int mv88e6xxx_irq_poll_setup(struct mv88e6xxx_chip *chip) |
| { |
| int err; |
| |
| err = mv88e6xxx_g1_irq_setup_common(chip); |
| if (err) |
| return err; |
| |
| kthread_init_delayed_work(&chip->irq_poll_work, |
| mv88e6xxx_irq_poll); |
| |
| chip->kworker = kthread_create_worker(0, dev_name(chip->dev)); |
| if (IS_ERR(chip->kworker)) |
| return PTR_ERR(chip->kworker); |
| |
| kthread_queue_delayed_work(chip->kworker, &chip->irq_poll_work, |
| msecs_to_jiffies(100)); |
| |
| return 0; |
| } |
| |
| static void mv88e6xxx_irq_poll_free(struct mv88e6xxx_chip *chip) |
| { |
| kthread_cancel_delayed_work_sync(&chip->irq_poll_work); |
| kthread_destroy_worker(chip->kworker); |
| |
| mutex_lock(&chip->reg_lock); |
| mv88e6xxx_g1_irq_free_common(chip); |
| mutex_unlock(&chip->reg_lock); |
| } |
| |
| int mv88e6xxx_wait(struct mv88e6xxx_chip *chip, int addr, int reg, u16 mask) |
| { |
| int i; |
| |
| for (i = 0; i < 16; i++) { |
| u16 val; |
| int err; |
| |
| err = mv88e6xxx_read(chip, addr, reg, &val); |
| if (err) |
| return err; |
| |
| if (!(val & mask)) |
| return 0; |
| |
| usleep_range(1000, 2000); |
| } |
| |
| dev_err(chip->dev, "Timeout while waiting for switch\n"); |
| return -ETIMEDOUT; |
| } |
| |
| /* Indirect write to single pointer-data register with an Update bit */ |
| int mv88e6xxx_update(struct mv88e6xxx_chip *chip, int addr, int reg, u16 update) |
| { |
| u16 val; |
| int err; |
| |
| /* Wait until the previous operation is completed */ |
| err = mv88e6xxx_wait(chip, addr, reg, BIT(15)); |
| if (err) |
| return err; |
| |
| /* Set the Update bit to trigger a write operation */ |
| val = BIT(15) | update; |
| |
| return mv88e6xxx_write(chip, addr, reg, val); |
| } |
| |
| static int mv88e6xxx_port_setup_mac(struct mv88e6xxx_chip *chip, int port, |
| int link, int speed, int duplex, int pause, |
| phy_interface_t mode) |
| { |
| int err; |
| |
| if (!chip->info->ops->port_set_link) |
| return 0; |
| |
| /* Port's MAC control must not be changed unless the link is down */ |
| err = chip->info->ops->port_set_link(chip, port, 0); |
| if (err) |
| return err; |
| |
| if (chip->info->ops->port_set_speed) { |
| err = chip->info->ops->port_set_speed(chip, port, speed); |
| if (err && err != -EOPNOTSUPP) |
| goto restore_link; |
| } |
| |
| if (chip->info->ops->port_set_pause) { |
| err = chip->info->ops->port_set_pause(chip, port, pause); |
| if (err) |
| 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; |
| } |
| |
| if (chip->info->ops->port_set_rgmii_delay) { |
| err = chip->info->ops->port_set_rgmii_delay(chip, port, mode); |
| if (err && err != -EOPNOTSUPP) |
| goto restore_link; |
| } |
| |
| if (chip->info->ops->port_set_cmode) { |
| err = chip->info->ops->port_set_cmode(chip, port, mode); |
| if (err && err != -EOPNOTSUPP) |
| goto restore_link; |
| } |
| |
| err = 0; |
| restore_link: |
| if (chip->info->ops->port_set_link(chip, port, link)) |
| dev_err(chip->dev, "p%d: failed to restore MAC's link\n", port); |
| |
| return err; |
| } |
| |
| /* We expect the switch to perform auto negotiation if there is a real |
| * phy. However, in the case of a fixed link phy, we force the port |
| * settings from the fixed link settings. |
| */ |
| static void mv88e6xxx_adjust_link(struct dsa_switch *ds, int port, |
| struct phy_device *phydev) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int err; |
| |
| if (!phy_is_pseudo_fixed_link(phydev)) |
| return; |
| |
| mutex_lock(&chip->reg_lock); |
| err = mv88e6xxx_port_setup_mac(chip, port, phydev->link, phydev->speed, |
| phydev->duplex, phydev->pause, |
| phydev->interface); |
| mutex_unlock(&chip->reg_lock); |
| |
| if (err && err != -EOPNOTSUPP) |
| dev_err(ds->dev, "p%d: failed to configure MAC\n", port); |
| } |
| |
| static void mv88e6065_phylink_validate(struct mv88e6xxx_chip *chip, int port, |
| unsigned long *mask, |
| struct phylink_link_state *state) |
| { |
| if (!phy_interface_mode_is_8023z(state->interface)) { |
| /* 10M and 100M are only supported in non-802.3z mode */ |
| phylink_set(mask, 10baseT_Half); |
| phylink_set(mask, 10baseT_Full); |
| phylink_set(mask, 100baseT_Half); |
| phylink_set(mask, 100baseT_Full); |
| } |
| } |
| |
| static void mv88e6185_phylink_validate(struct mv88e6xxx_chip *chip, int port, |
| unsigned long *mask, |
| struct phylink_link_state *state) |
| { |
| /* FIXME: if the port is in 1000Base-X mode, then it only supports |
| * 1000M FD speeds. In this case, CMODE will indicate 5. |
| */ |
| phylink_set(mask, 1000baseT_Full); |
| phylink_set(mask, 1000baseX_Full); |
| |
| mv88e6065_phylink_validate(chip, port, mask, state); |
| } |
| |
| static void mv88e6352_phylink_validate(struct mv88e6xxx_chip *chip, int port, |
| unsigned long *mask, |
| struct phylink_link_state *state) |
| { |
| /* No ethtool bits for 200Mbps */ |
| phylink_set(mask, 1000baseT_Full); |
| phylink_set(mask, 1000baseX_Full); |
| |
| mv88e6065_phylink_validate(chip, port, mask, state); |
| } |
| |
| static void mv88e6390_phylink_validate(struct mv88e6xxx_chip *chip, int port, |
| unsigned long *mask, |
| struct phylink_link_state *state) |
| { |
| if (port >= 9) |
| phylink_set(mask, 2500baseX_Full); |
| |
| /* No ethtool bits for 200Mbps */ |
| phylink_set(mask, 1000baseT_Full); |
| phylink_set(mask, 1000baseX_Full); |
| |
| mv88e6065_phylink_validate(chip, port, mask, state); |
| } |
| |
| static void mv88e6390x_phylink_validate(struct mv88e6xxx_chip *chip, int port, |
| unsigned long *mask, |
| struct phylink_link_state *state) |
| { |
| if (port >= 9) { |
| phylink_set(mask, 10000baseT_Full); |
| phylink_set(mask, 10000baseKR_Full); |
| } |
| |
| mv88e6390_phylink_validate(chip, port, mask, state); |
| } |
| |
| static void mv88e6xxx_validate(struct dsa_switch *ds, int port, |
| unsigned long *supported, |
| struct phylink_link_state *state) |
| { |
| __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, }; |
| struct mv88e6xxx_chip *chip = ds->priv; |
| |
| /* Allow all the expected bits */ |
| phylink_set(mask, Autoneg); |
| phylink_set(mask, Pause); |
| phylink_set_port_modes(mask); |
| |
| if (chip->info->ops->phylink_validate) |
| chip->info->ops->phylink_validate(chip, port, mask, state); |
| |
| bitmap_and(supported, supported, mask, __ETHTOOL_LINK_MODE_MASK_NBITS); |
| bitmap_and(state->advertising, state->advertising, mask, |
| __ETHTOOL_LINK_MODE_MASK_NBITS); |
| |
| /* We can only operate at 2500BaseX or 1000BaseX. If requested |
| * to advertise both, only report advertising at 2500BaseX. |
| */ |
| phylink_helper_basex_speed(state); |
| } |
| |
| static int mv88e6xxx_link_state(struct dsa_switch *ds, int port, |
| struct phylink_link_state *state) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int err; |
| |
| mutex_lock(&chip->reg_lock); |
| if (chip->info->ops->port_link_state) |
| err = chip->info->ops->port_link_state(chip, port, state); |
| else |
| err = -EOPNOTSUPP; |
| mutex_unlock(&chip->reg_lock); |
| |
| return err; |
| } |
| |
| static void mv88e6xxx_mac_config(struct dsa_switch *ds, int port, |
| unsigned int mode, |
| const struct phylink_link_state *state) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int speed, duplex, link, pause, err; |
| |
| if (mode == MLO_AN_PHY) |
| return; |
| |
| if (mode == MLO_AN_FIXED) { |
| link = LINK_FORCED_UP; |
| speed = state->speed; |
| duplex = state->duplex; |
| } else { |
| speed = SPEED_UNFORCED; |
| duplex = DUPLEX_UNFORCED; |
| link = LINK_UNFORCED; |
| } |
| pause = !!phylink_test(state->advertising, Pause); |
| |
| mutex_lock(&chip->reg_lock); |
| err = mv88e6xxx_port_setup_mac(chip, port, link, speed, duplex, pause, |
| state->interface); |
| mutex_unlock(&chip->reg_lock); |
| |
| if (err && err != -EOPNOTSUPP) |
| dev_err(ds->dev, "p%d: failed to configure MAC\n", port); |
| } |
| |
| static void mv88e6xxx_mac_link_force(struct dsa_switch *ds, int port, int link) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int err; |
| |
| mutex_lock(&chip->reg_lock); |
| err = chip->info->ops->port_set_link(chip, port, link); |
| mutex_unlock(&chip->reg_lock); |
| |
| if (err) |
| dev_err(chip->dev, "p%d: failed to force MAC link\n", port); |
| } |
| |
| static void mv88e6xxx_mac_link_down(struct dsa_switch *ds, int port, |
| unsigned int mode, |
| phy_interface_t interface) |
| { |
| if (mode == MLO_AN_FIXED) |
| mv88e6xxx_mac_link_force(ds, port, LINK_FORCED_DOWN); |
| } |
| |
| static void mv88e6xxx_mac_link_up(struct dsa_switch *ds, int port, |
| unsigned int mode, phy_interface_t interface, |
| struct phy_device *phydev) |
| { |
| if (mode == MLO_AN_FIXED) |
| mv88e6xxx_mac_link_force(ds, port, LINK_FORCED_UP); |
| } |
| |
| static int mv88e6xxx_stats_snapshot(struct mv88e6xxx_chip *chip, int port) |
| { |
| if (!chip->info->ops->stats_snapshot) |
| return -EOPNOTSUPP; |
| |
| return chip->info->ops->stats_snapshot(chip, port); |
| } |
| |
| static struct mv88e6xxx_hw_stat mv88e6xxx_hw_stats[] = { |
| { "in_good_octets", 8, 0x00, STATS_TYPE_BANK0, }, |
| { "in_bad_octets", 4, 0x02, STATS_TYPE_BANK0, }, |
| { "in_unicast", 4, 0x04, STATS_TYPE_BANK0, }, |
| { "in_broadcasts", 4, 0x06, STATS_TYPE_BANK0, }, |
| { "in_multicasts", 4, 0x07, STATS_TYPE_BANK0, }, |
| { "in_pause", 4, 0x16, STATS_TYPE_BANK0, }, |
| { "in_undersize", 4, 0x18, STATS_TYPE_BANK0, }, |
| { "in_fragments", 4, 0x19, STATS_TYPE_BANK0, }, |
| { "in_oversize", 4, 0x1a, STATS_TYPE_BANK0, }, |
| { "in_jabber", 4, 0x1b, STATS_TYPE_BANK0, }, |
| { "in_rx_error", 4, 0x1c, STATS_TYPE_BANK0, }, |
| { "in_fcs_error", 4, 0x1d, STATS_TYPE_BANK0, }, |
| { "out_octets", 8, 0x0e, STATS_TYPE_BANK0, }, |
| { "out_unicast", 4, 0x10, STATS_TYPE_BANK0, }, |
| { "out_broadcasts", 4, 0x13, STATS_TYPE_BANK0, }, |
| { "out_multicasts", 4, 0x12, STATS_TYPE_BANK0, }, |
| { "out_pause", 4, 0x15, STATS_TYPE_BANK0, }, |
| { "excessive", 4, 0x11, STATS_TYPE_BANK0, }, |
| { "collisions", 4, 0x1e, STATS_TYPE_BANK0, }, |
| { "deferred", 4, 0x05, STATS_TYPE_BANK0, }, |
| { "single", 4, 0x14, STATS_TYPE_BANK0, }, |
| { "multiple", 4, 0x17, STATS_TYPE_BANK0, }, |
| { "out_fcs_error", 4, 0x03, STATS_TYPE_BANK0, }, |
| { "late", 4, 0x1f, STATS_TYPE_BANK0, }, |
| { "hist_64bytes", 4, 0x08, STATS_TYPE_BANK0, }, |
| { "hist_65_127bytes", 4, 0x09, STATS_TYPE_BANK0, }, |
| { "hist_128_255bytes", 4, 0x0a, STATS_TYPE_BANK0, }, |
| { "hist_256_511bytes", 4, 0x0b, STATS_TYPE_BANK0, }, |
| { "hist_512_1023bytes", 4, 0x0c, STATS_TYPE_BANK0, }, |
| { "hist_1024_max_bytes", 4, 0x0d, STATS_TYPE_BANK0, }, |
| { "sw_in_discards", 4, 0x10, STATS_TYPE_PORT, }, |
| { "sw_in_filtered", 2, 0x12, STATS_TYPE_PORT, }, |
| { "sw_out_filtered", 2, 0x13, STATS_TYPE_PORT, }, |
| { "in_discards", 4, 0x00, STATS_TYPE_BANK1, }, |
| { "in_filtered", 4, 0x01, STATS_TYPE_BANK1, }, |
| { "in_accepted", 4, 0x02, STATS_TYPE_BANK1, }, |
| { "in_bad_accepted", 4, 0x03, STATS_TYPE_BANK1, }, |
| { "in_good_avb_class_a", 4, 0x04, STATS_TYPE_BANK1, }, |
| { "in_good_avb_class_b", 4, 0x05, STATS_TYPE_BANK1, }, |
| { "in_bad_avb_class_a", 4, 0x06, STATS_TYPE_BANK1, }, |
| { "in_bad_avb_class_b", 4, 0x07, STATS_TYPE_BANK1, }, |
| { "tcam_counter_0", 4, 0x08, STATS_TYPE_BANK1, }, |
| { "tcam_counter_1", 4, 0x09, STATS_TYPE_BANK1, }, |
| { "tcam_counter_2", 4, 0x0a, STATS_TYPE_BANK1, }, |
| { "tcam_counter_3", 4, 0x0b, STATS_TYPE_BANK1, }, |
| { "in_da_unknown", 4, 0x0e, STATS_TYPE_BANK1, }, |
| { "in_management", 4, 0x0f, STATS_TYPE_BANK1, }, |
| { "out_queue_0", 4, 0x10, STATS_TYPE_BANK1, }, |
| { "out_queue_1", 4, 0x11, STATS_TYPE_BANK1, }, |
| { "out_queue_2", 4, 0x12, STATS_TYPE_BANK1, }, |
| { "out_queue_3", 4, 0x13, STATS_TYPE_BANK1, }, |
| { "out_queue_4", 4, 0x14, STATS_TYPE_BANK1, }, |
| { "out_queue_5", 4, 0x15, STATS_TYPE_BANK1, }, |
| { "out_queue_6", 4, 0x16, STATS_TYPE_BANK1, }, |
| { "out_queue_7", 4, 0x17, STATS_TYPE_BANK1, }, |
| { "out_cut_through", 4, 0x18, STATS_TYPE_BANK1, }, |
| { "out_octets_a", 4, 0x1a, STATS_TYPE_BANK1, }, |
| { "out_octets_b", 4, 0x1b, STATS_TYPE_BANK1, }, |
| { "out_management", 4, 0x1f, STATS_TYPE_BANK1, }, |
| }; |
| |
| static uint64_t _mv88e6xxx_get_ethtool_stat(struct mv88e6xxx_chip *chip, |
| struct mv88e6xxx_hw_stat *s, |
| int port, u16 bank1_select, |
| u16 histogram) |
| { |
| u32 low; |
| u32 high = 0; |
| u16 reg = 0; |
| int err; |
| u64 value; |
| |
| switch (s->type) { |
| case STATS_TYPE_PORT: |
| err = mv88e6xxx_port_read(chip, port, s->reg, ®); |
| if (err) |
| return U64_MAX; |
| |
| low = reg; |
| if (s->size == 4) { |
| err = mv88e6xxx_port_read(chip, port, s->reg + 1, ®); |
| if (err) |
| return U64_MAX; |
| low |= ((u32)reg) << 16; |
| } |
| break; |
| case STATS_TYPE_BANK1: |
| reg = bank1_select; |
| /* fall through */ |
| case STATS_TYPE_BANK0: |
| reg |= s->reg | histogram; |
| mv88e6xxx_g1_stats_read(chip, reg, &low); |
| if (s->size == 8) |
| mv88e6xxx_g1_stats_read(chip, reg + 1, &high); |
| break; |
| default: |
| return U64_MAX; |
| } |
| value = (((u64)high) << 32) | low; |
| return value; |
| } |
| |
| static int mv88e6xxx_stats_get_strings(struct mv88e6xxx_chip *chip, |
| uint8_t *data, int types) |
| { |
| struct mv88e6xxx_hw_stat *stat; |
| int i, j; |
| |
| for (i = 0, j = 0; i < ARRAY_SIZE(mv88e6xxx_hw_stats); i++) { |
| stat = &mv88e6xxx_hw_stats[i]; |
| if (stat->type & types) { |
| memcpy(data + j * ETH_GSTRING_LEN, stat->string, |
| ETH_GSTRING_LEN); |
| j++; |
| } |
| } |
| |
| return j; |
| } |
| |
| static int mv88e6095_stats_get_strings(struct mv88e6xxx_chip *chip, |
| uint8_t *data) |
| { |
| return mv88e6xxx_stats_get_strings(chip, data, |
| STATS_TYPE_BANK0 | STATS_TYPE_PORT); |
| } |
| |
| static int mv88e6320_stats_get_strings(struct mv88e6xxx_chip *chip, |
| uint8_t *data) |
| { |
| return mv88e6xxx_stats_get_strings(chip, data, |
| STATS_TYPE_BANK0 | STATS_TYPE_BANK1); |
| } |
| |
| static const uint8_t *mv88e6xxx_atu_vtu_stats_strings[] = { |
| "atu_member_violation", |
| "atu_miss_violation", |
| "atu_full_violation", |
| "vtu_member_violation", |
| "vtu_miss_violation", |
| }; |
| |
| static void mv88e6xxx_atu_vtu_get_strings(uint8_t *data) |
| { |
| unsigned int i; |
| |
| for (i = 0; i < ARRAY_SIZE(mv88e6xxx_atu_vtu_stats_strings); i++) |
| strlcpy(data + i * ETH_GSTRING_LEN, |
| mv88e6xxx_atu_vtu_stats_strings[i], |
| ETH_GSTRING_LEN); |
| } |
| |
| static void mv88e6xxx_get_strings(struct dsa_switch *ds, int port, |
| u32 stringset, uint8_t *data) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int count = 0; |
| |
| if (stringset != ETH_SS_STATS) |
| return; |
| |
| mutex_lock(&chip->reg_lock); |
| |
| if (chip->info->ops->stats_get_strings) |
| count = chip->info->ops->stats_get_strings(chip, data); |
| |
| if (chip->info->ops->serdes_get_strings) { |
| data += count * ETH_GSTRING_LEN; |
| count = chip->info->ops->serdes_get_strings(chip, port, data); |
| } |
| |
| data += count * ETH_GSTRING_LEN; |
| mv88e6xxx_atu_vtu_get_strings(data); |
| |
| mutex_unlock(&chip->reg_lock); |
| } |
| |
| static int mv88e6xxx_stats_get_sset_count(struct mv88e6xxx_chip *chip, |
| int types) |
| { |
| struct mv88e6xxx_hw_stat *stat; |
| int i, j; |
| |
| for (i = 0, j = 0; i < ARRAY_SIZE(mv88e6xxx_hw_stats); i++) { |
| stat = &mv88e6xxx_hw_stats[i]; |
| if (stat->type & types) |
| j++; |
| } |
| return j; |
| } |
| |
| static int mv88e6095_stats_get_sset_count(struct mv88e6xxx_chip *chip) |
| { |
| return mv88e6xxx_stats_get_sset_count(chip, STATS_TYPE_BANK0 | |
| STATS_TYPE_PORT); |
| } |
| |
| static int mv88e6320_stats_get_sset_count(struct mv88e6xxx_chip *chip) |
| { |
| return mv88e6xxx_stats_get_sset_count(chip, STATS_TYPE_BANK0 | |
| STATS_TYPE_BANK1); |
| } |
| |
| static int mv88e6xxx_get_sset_count(struct dsa_switch *ds, int port, int sset) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int serdes_count = 0; |
| int count = 0; |
| |
| if (sset != ETH_SS_STATS) |
| return 0; |
| |
| mutex_lock(&chip->reg_lock); |
| if (chip->info->ops->stats_get_sset_count) |
| count = chip->info->ops->stats_get_sset_count(chip); |
| if (count < 0) |
| goto out; |
| |
| if (chip->info->ops->serdes_get_sset_count) |
| serdes_count = chip->info->ops->serdes_get_sset_count(chip, |
| port); |
| if (serdes_count < 0) { |
| count = serdes_count; |
| goto out; |
| } |
| count += serdes_count; |
| count += ARRAY_SIZE(mv88e6xxx_atu_vtu_stats_strings); |
| |
| out: |
| mutex_unlock(&chip->reg_lock); |
| |
| return count; |
| } |
| |
| static int mv88e6xxx_stats_get_stats(struct mv88e6xxx_chip *chip, int port, |
| uint64_t *data, int types, |
| u16 bank1_select, u16 histogram) |
| { |
| struct mv88e6xxx_hw_stat *stat; |
| int i, j; |
| |
| for (i = 0, j = 0; i < ARRAY_SIZE(mv88e6xxx_hw_stats); i++) { |
| stat = &mv88e6xxx_hw_stats[i]; |
| if (stat->type & types) { |
| mutex_lock(&chip->reg_lock); |
| data[j] = _mv88e6xxx_get_ethtool_stat(chip, stat, port, |
| bank1_select, |
| histogram); |
| mutex_unlock(&chip->reg_lock); |
| |
| j++; |
| } |
| } |
| return j; |
| } |
| |
| static int mv88e6095_stats_get_stats(struct mv88e6xxx_chip *chip, int port, |
| uint64_t *data) |
| { |
| return mv88e6xxx_stats_get_stats(chip, port, data, |
| STATS_TYPE_BANK0 | STATS_TYPE_PORT, |
| 0, MV88E6XXX_G1_STATS_OP_HIST_RX_TX); |
| } |
| |
| static int mv88e6320_stats_get_stats(struct mv88e6xxx_chip *chip, int port, |
| uint64_t *data) |
| { |
| return mv88e6xxx_stats_get_stats(chip, port, data, |
| STATS_TYPE_BANK0 | STATS_TYPE_BANK1, |
| MV88E6XXX_G1_STATS_OP_BANK_1_BIT_9, |
| MV88E6XXX_G1_STATS_OP_HIST_RX_TX); |
| } |
| |
| static int mv88e6390_stats_get_stats(struct mv88e6xxx_chip *chip, int port, |
| uint64_t *data) |
| { |
| return mv88e6xxx_stats_get_stats(chip, port, data, |
| STATS_TYPE_BANK0 | STATS_TYPE_BANK1, |
| MV88E6XXX_G1_STATS_OP_BANK_1_BIT_10, |
| 0); |
| } |
| |
| static void mv88e6xxx_atu_vtu_get_stats(struct mv88e6xxx_chip *chip, int port, |
| uint64_t *data) |
| { |
| *data++ = chip->ports[port].atu_member_violation; |
| *data++ = chip->ports[port].atu_miss_violation; |
| *data++ = chip->ports[port].atu_full_violation; |
| *data++ = chip->ports[port].vtu_member_violation; |
| *data++ = chip->ports[port].vtu_miss_violation; |
| } |
| |
| static void mv88e6xxx_get_stats(struct mv88e6xxx_chip *chip, int port, |
| uint64_t *data) |
| { |
| int count = 0; |
| |
| if (chip->info->ops->stats_get_stats) |
| count = chip->info->ops->stats_get_stats(chip, port, data); |
| |
| mutex_lock(&chip->reg_lock); |
| if (chip->info->ops->serdes_get_stats) { |
| data += count; |
| count = chip->info->ops->serdes_get_stats(chip, port, data); |
| } |
| data += count; |
| mv88e6xxx_atu_vtu_get_stats(chip, port, data); |
| mutex_unlock(&chip->reg_lock); |
| } |
| |
| static void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds, int port, |
| uint64_t *data) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int ret; |
| |
| mutex_lock(&chip->reg_lock); |
| |
| ret = mv88e6xxx_stats_snapshot(chip, port); |
| mutex_unlock(&chip->reg_lock); |
| |
| if (ret < 0) |
| return; |
| |
| mv88e6xxx_get_stats(chip, port, data); |
| |
| } |
| |
| static int mv88e6xxx_get_regs_len(struct dsa_switch *ds, int port) |
| { |
| return 32 * sizeof(u16); |
| } |
| |
| static void mv88e6xxx_get_regs(struct dsa_switch *ds, int port, |
| struct ethtool_regs *regs, void *_p) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int err; |
| u16 reg; |
| u16 *p = _p; |
| int i; |
| |
| regs->version = 0; |
| |
| memset(p, 0xff, 32 * sizeof(u16)); |
| |
| mutex_lock(&chip->reg_lock); |
| |
| for (i = 0; i < 32; i++) { |
| |
| err = mv88e6xxx_port_read(chip, port, i, ®); |
| if (!err) |
| p[i] = reg; |
| } |
| |
| mutex_unlock(&chip->reg_lock); |
| } |
| |
| static int mv88e6xxx_get_mac_eee(struct dsa_switch *ds, int port, |
| struct ethtool_eee *e) |
| { |
| /* Nothing to do on the port's MAC */ |
| return 0; |
| } |
| |
| static int mv88e6xxx_set_mac_eee(struct dsa_switch *ds, int port, |
| struct ethtool_eee *e) |
| { |
| /* Nothing to do on the port's MAC */ |
| return 0; |
| } |
| |
| static u16 mv88e6xxx_port_vlan(struct mv88e6xxx_chip *chip, int dev, int port) |
| { |
| struct dsa_switch *ds = NULL; |
| struct net_device *br; |
| u16 pvlan; |
| int i; |
| |
| if (dev < DSA_MAX_SWITCHES) |
| ds = chip->ds->dst->ds[dev]; |
| |
| /* Prevent frames from unknown switch or port */ |
| if (!ds || port >= ds->num_ports) |
| return 0; |
| |
| /* Frames from DSA links and CPU ports can egress any local port */ |
| if (dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port)) |
| return mv88e6xxx_port_mask(chip); |
| |
| br = ds->ports[port].bridge_dev; |
| pvlan = 0; |
| |
| /* Frames from user ports can egress any local DSA links and CPU ports, |
| * as well as any local member of their bridge group. |
| */ |
| for (i = 0; i < mv88e6xxx_num_ports(chip); ++i) |
| if (dsa_is_cpu_port(chip->ds, i) || |
| dsa_is_dsa_port(chip->ds, i) || |
| (br && dsa_to_port(chip->ds, i)->bridge_dev == br)) |
| pvlan |= BIT(i); |
| |
| return pvlan; |
| } |
| |
| static int mv88e6xxx_port_vlan_map(struct mv88e6xxx_chip *chip, int port) |
| { |
| u16 output_ports = mv88e6xxx_port_vlan(chip, chip->ds->index, port); |
| |
| /* prevent frames from going back out of the port they came in on */ |
| output_ports &= ~BIT(port); |
| |
| return mv88e6xxx_port_set_vlan_map(chip, port, output_ports); |
| } |
| |
| static void mv88e6xxx_port_stp_state_set(struct dsa_switch *ds, int port, |
| u8 state) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int err; |
| |
| mutex_lock(&chip->reg_lock); |
| err = mv88e6xxx_port_set_state(chip, port, state); |
| mutex_unlock(&chip->reg_lock); |
| |
| if (err) |
| dev_err(ds->dev, "p%d: failed to update state\n", port); |
| } |
| |
| static int mv88e6xxx_pri_setup(struct mv88e6xxx_chip *chip) |
| { |
| int err; |
| |
| if (chip->info->ops->ieee_pri_map) { |
| err = chip->info->ops->ieee_pri_map(chip); |
| if (err) |
| return err; |
| } |
| |
| if (chip->info->ops->ip_pri_map) { |
| err = chip->info->ops->ip_pri_map(chip); |
| if (err) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_devmap_setup(struct mv88e6xxx_chip *chip) |
| { |
| int target, port; |
| int err; |
| |
| if (!chip->info->global2_addr) |
| return 0; |
| |
| /* Initialize the routing port to the 32 possible target devices */ |
| for (target = 0; target < 32; target++) { |
| port = 0x1f; |
| if (target < DSA_MAX_SWITCHES) |
| if (chip->ds->rtable[target] != DSA_RTABLE_NONE) |
| port = chip->ds->rtable[target]; |
| |
| err = mv88e6xxx_g2_device_mapping_write(chip, target, port); |
| if (err) |
| return err; |
| } |
| |
| if (chip->info->ops->set_cascade_port) { |
| port = MV88E6XXX_CASCADE_PORT_MULTIPLE; |
| err = chip->info->ops->set_cascade_port(chip, port); |
| if (err) |
| return err; |
| } |
| |
| err = mv88e6xxx_g1_set_device_number(chip, chip->ds->index); |
| if (err) |
| return err; |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_trunk_setup(struct mv88e6xxx_chip *chip) |
| { |
| /* Clear all trunk masks and mapping */ |
| if (chip->info->global2_addr) |
| return mv88e6xxx_g2_trunk_clear(chip); |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_rmu_setup(struct mv88e6xxx_chip *chip) |
| { |
| if (chip->info->ops->rmu_disable) |
| return chip->info->ops->rmu_disable(chip); |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_pot_setup(struct mv88e6xxx_chip *chip) |
| { |
| if (chip->info->ops->pot_clear) |
| return chip->info->ops->pot_clear(chip); |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_rsvd2cpu_setup(struct mv88e6xxx_chip *chip) |
| { |
| if (chip->info->ops->mgmt_rsvd2cpu) |
| return chip->info->ops->mgmt_rsvd2cpu(chip); |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_atu_setup(struct mv88e6xxx_chip *chip) |
| { |
| int err; |
| |
| err = mv88e6xxx_g1_atu_flush(chip, 0, true); |
| if (err) |
| return err; |
| |
| err = mv88e6xxx_g1_atu_set_learn2all(chip, true); |
| if (err) |
| return err; |
| |
| return mv88e6xxx_g1_atu_set_age_time(chip, 300000); |
| } |
| |
| static int mv88e6xxx_irl_setup(struct mv88e6xxx_chip *chip) |
| { |
| int port; |
| int err; |
| |
| if (!chip->info->ops->irl_init_all) |
| return 0; |
| |
| for (port = 0; port < mv88e6xxx_num_ports(chip); port++) { |
| /* Disable ingress rate limiting by resetting all per port |
| * ingress rate limit resources to their initial state. |
| */ |
| err = chip->info->ops->irl_init_all(chip, port); |
| if (err) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_mac_setup(struct mv88e6xxx_chip *chip) |
| { |
| if (chip->info->ops->set_switch_mac) { |
| u8 addr[ETH_ALEN]; |
| |
| eth_random_addr(addr); |
| |
| return chip->info->ops->set_switch_mac(chip, addr); |
| } |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_pvt_map(struct mv88e6xxx_chip *chip, int dev, int port) |
| { |
| u16 pvlan = 0; |
| |
| if (!mv88e6xxx_has_pvt(chip)) |
| return -EOPNOTSUPP; |
| |
| /* Skip the local source device, which uses in-chip port VLAN */ |
| if (dev != chip->ds->index) |
| pvlan = mv88e6xxx_port_vlan(chip, dev, port); |
| |
| return mv88e6xxx_g2_pvt_write(chip, dev, port, pvlan); |
| } |
| |
| static int mv88e6xxx_pvt_setup(struct mv88e6xxx_chip *chip) |
| { |
| int dev, port; |
| int err; |
| |
| if (!mv88e6xxx_has_pvt(chip)) |
| return 0; |
| |
| /* Clear 5 Bit Port for usage with Marvell Link Street devices: |
| * use 4 bits for the Src_Port/Src_Trunk and 5 bits for the Src_Dev. |
| */ |
| err = mv88e6xxx_g2_misc_4_bit_port(chip); |
| if (err) |
| return err; |
| |
| for (dev = 0; dev < MV88E6XXX_MAX_PVT_SWITCHES; ++dev) { |
| for (port = 0; port < MV88E6XXX_MAX_PVT_PORTS; ++port) { |
| err = mv88e6xxx_pvt_map(chip, dev, port); |
| if (err) |
| return err; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static void mv88e6xxx_port_fast_age(struct dsa_switch *ds, int port) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int err; |
| |
| mutex_lock(&chip->reg_lock); |
| err = mv88e6xxx_g1_atu_remove(chip, 0, port, false); |
| mutex_unlock(&chip->reg_lock); |
| |
| if (err) |
| dev_err(ds->dev, "p%d: failed to flush ATU\n", port); |
| } |
| |
| static int mv88e6xxx_vtu_setup(struct mv88e6xxx_chip *chip) |
| { |
| if (!chip->info->max_vid) |
| return 0; |
| |
| return mv88e6xxx_g1_vtu_flush(chip); |
| } |
| |
| static int mv88e6xxx_vtu_getnext(struct mv88e6xxx_chip *chip, |
| struct mv88e6xxx_vtu_entry *entry) |
| { |
| if (!chip->info->ops->vtu_getnext) |
| return -EOPNOTSUPP; |
| |
| return chip->info->ops->vtu_getnext(chip, entry); |
| } |
| |
| static int mv88e6xxx_vtu_loadpurge(struct mv88e6xxx_chip *chip, |
| struct mv88e6xxx_vtu_entry *entry) |
| { |
| if (!chip->info->ops->vtu_loadpurge) |
| return -EOPNOTSUPP; |
| |
| return chip->info->ops->vtu_loadpurge(chip, entry); |
| } |
| |
| static int mv88e6xxx_atu_new(struct mv88e6xxx_chip *chip, u16 *fid) |
| { |
| DECLARE_BITMAP(fid_bitmap, MV88E6XXX_N_FID); |
| struct mv88e6xxx_vtu_entry vlan = { |
| .vid = chip->info->max_vid, |
| }; |
| int i, err; |
| |
| bitmap_zero(fid_bitmap, MV88E6XXX_N_FID); |
| |
| /* Set every FID bit used by the (un)bridged ports */ |
| for (i = 0; i < mv88e6xxx_num_ports(chip); ++i) { |
| err = mv88e6xxx_port_get_fid(chip, i, fid); |
| if (err) |
| return err; |
| |
| set_bit(*fid, fid_bitmap); |
| } |
| |
| /* Set every FID bit used by the VLAN entries */ |
| do { |
| err = mv88e6xxx_vtu_getnext(chip, &vlan); |
| if (err) |
| return err; |
| |
| if (!vlan.valid) |
| break; |
| |
| set_bit(vlan.fid, fid_bitmap); |
| } while (vlan.vid < chip->info->max_vid); |
| |
| /* The reset value 0x000 is used to indicate that multiple address |
| * databases are not needed. Return the next positive available. |
| */ |
| *fid = find_next_zero_bit(fid_bitmap, MV88E6XXX_N_FID, 1); |
| if (unlikely(*fid >= mv88e6xxx_num_databases(chip))) |
| return -ENOSPC; |
| |
| /* Clear the database */ |
| return mv88e6xxx_g1_atu_flush(chip, *fid, true); |
| } |
| |
| static int mv88e6xxx_vtu_get(struct mv88e6xxx_chip *chip, u16 vid, |
| struct mv88e6xxx_vtu_entry *entry, bool new) |
| { |
| int err; |
| |
| if (!vid) |
| return -EOPNOTSUPP; |
| |
| entry->vid = vid - 1; |
| entry->valid = false; |
| |
| err = mv88e6xxx_vtu_getnext(chip, entry); |
| if (err) |
| return err; |
| |
| if (entry->vid == vid && entry->valid) |
| return 0; |
| |
| if (new) { |
| int i; |
| |
| /* Initialize a fresh VLAN entry */ |
| memset(entry, 0, sizeof(*entry)); |
| entry->valid = true; |
| entry->vid = vid; |
| |
| /* Exclude all ports */ |
| for (i = 0; i < mv88e6xxx_num_ports(chip); ++i) |
| entry->member[i] = |
| MV88E6XXX_G1_VTU_DATA_MEMBER_TAG_NON_MEMBER; |
| |
| return mv88e6xxx_atu_new(chip, &entry->fid); |
| } |
| |
| /* switchdev expects -EOPNOTSUPP to honor software VLANs */ |
| return -EOPNOTSUPP; |
| } |
| |
| static int mv88e6xxx_port_check_hw_vlan(struct dsa_switch *ds, int port, |
| u16 vid_begin, u16 vid_end) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| struct mv88e6xxx_vtu_entry vlan = { |
| .vid = vid_begin - 1, |
| }; |
| int i, err; |
| |
| /* DSA and CPU ports have to be members of multiple vlans */ |
| if (dsa_is_dsa_port(ds, port) || dsa_is_cpu_port(ds, port)) |
| return 0; |
| |
| if (!vid_begin) |
| return -EOPNOTSUPP; |
| |
| mutex_lock(&chip->reg_lock); |
| |
| do { |
| err = mv88e6xxx_vtu_getnext(chip, &vlan); |
| if (err) |
| goto unlock; |
| |
| if (!vlan.valid) |
| break; |
| |
| if (vlan.vid > vid_end) |
| break; |
| |
| for (i = 0; i < mv88e6xxx_num_ports(chip); ++i) { |
| if (dsa_is_dsa_port(ds, i) || dsa_is_cpu_port(ds, i)) |
| continue; |
| |
| if (!ds->ports[i].slave) |
| continue; |
| |
| if (vlan.member[i] == |
| MV88E6XXX_G1_VTU_DATA_MEMBER_TAG_NON_MEMBER) |
| continue; |
| |
| if (dsa_to_port(ds, i)->bridge_dev == |
| ds->ports[port].bridge_dev) |
| break; /* same bridge, check next VLAN */ |
| |
| if (!dsa_to_port(ds, i)->bridge_dev) |
| continue; |
| |
| dev_err(ds->dev, "p%d: hw VLAN %d already used by port %d in %s\n", |
| port, vlan.vid, i, |
| netdev_name(dsa_to_port(ds, i)->bridge_dev)); |
| err = -EOPNOTSUPP; |
| goto unlock; |
| } |
| } while (vlan.vid < vid_end); |
| |
| unlock: |
| mutex_unlock(&chip->reg_lock); |
| |
| return err; |
| } |
| |
| static int mv88e6xxx_port_vlan_filtering(struct dsa_switch *ds, int port, |
| bool vlan_filtering) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| u16 mode = vlan_filtering ? MV88E6XXX_PORT_CTL2_8021Q_MODE_SECURE : |
| MV88E6XXX_PORT_CTL2_8021Q_MODE_DISABLED; |
| int err; |
| |
| if (!chip->info->max_vid) |
| return -EOPNOTSUPP; |
| |
| mutex_lock(&chip->reg_lock); |
| err = mv88e6xxx_port_set_8021q_mode(chip, port, mode); |
| mutex_unlock(&chip->reg_lock); |
| |
| return err; |
| } |
| |
| static int |
| mv88e6xxx_port_vlan_prepare(struct dsa_switch *ds, int port, |
| const struct switchdev_obj_port_vlan *vlan) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int err; |
| |
| if (!chip->info->max_vid) |
| return -EOPNOTSUPP; |
| |
| /* If the requested port doesn't belong to the same bridge as the VLAN |
| * members, do not support it (yet) and fallback to software VLAN. |
| */ |
| err = mv88e6xxx_port_check_hw_vlan(ds, port, vlan->vid_begin, |
| vlan->vid_end); |
| if (err) |
| return err; |
| |
| /* We don't need any dynamic resource from the kernel (yet), |
| * so skip the prepare phase. |
| */ |
| return 0; |
| } |
| |
| static int mv88e6xxx_port_db_load_purge(struct mv88e6xxx_chip *chip, int port, |
| const unsigned char *addr, u16 vid, |
| u8 state) |
| { |
| struct mv88e6xxx_vtu_entry vlan; |
| struct mv88e6xxx_atu_entry entry; |
| int err; |
| |
| /* Null VLAN ID corresponds to the port private database */ |
| if (vid == 0) |
| err = mv88e6xxx_port_get_fid(chip, port, &vlan.fid); |
| else |
| err = mv88e6xxx_vtu_get(chip, vid, &vlan, false); |
| if (err) |
| return err; |
| |
| entry.state = MV88E6XXX_G1_ATU_DATA_STATE_UNUSED; |
| ether_addr_copy(entry.mac, addr); |
| eth_addr_dec(entry.mac); |
| |
| err = mv88e6xxx_g1_atu_getnext(chip, vlan.fid, &entry); |
| if (err) |
| return err; |
| |
| /* Initialize a fresh ATU entry if it isn't found */ |
| if (entry.state == MV88E6XXX_G1_ATU_DATA_STATE_UNUSED || |
| !ether_addr_equal(entry.mac, addr)) { |
| memset(&entry, 0, sizeof(entry)); |
| ether_addr_copy(entry.mac, addr); |
| } |
| |
| /* Purge the ATU entry only if no port is using it anymore */ |
| if (state == MV88E6XXX_G1_ATU_DATA_STATE_UNUSED) { |
| entry.portvec &= ~BIT(port); |
| if (!entry.portvec) |
| entry.state = MV88E6XXX_G1_ATU_DATA_STATE_UNUSED; |
| } else { |
| if (state == MV88E6XXX_G1_ATU_DATA_STATE_UC_STATIC) |
| entry.portvec = BIT(port); |
| else |
| entry.portvec |= BIT(port); |
| |
| entry.state = state; |
| } |
| |
| return mv88e6xxx_g1_atu_loadpurge(chip, vlan.fid, &entry); |
| } |
| |
| static int mv88e6xxx_port_add_broadcast(struct mv88e6xxx_chip *chip, int port, |
| u16 vid) |
| { |
| const char broadcast[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
| u8 state = MV88E6XXX_G1_ATU_DATA_STATE_MC_STATIC; |
| |
| return mv88e6xxx_port_db_load_purge(chip, port, broadcast, vid, state); |
| } |
| |
| static int mv88e6xxx_broadcast_setup(struct mv88e6xxx_chip *chip, u16 vid) |
| { |
| int port; |
| int err; |
| |
| for (port = 0; port < mv88e6xxx_num_ports(chip); port++) { |
| err = mv88e6xxx_port_add_broadcast(chip, port, vid); |
| if (err) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int _mv88e6xxx_port_vlan_add(struct mv88e6xxx_chip *chip, int port, |
| u16 vid, u8 member) |
| { |
| struct mv88e6xxx_vtu_entry vlan; |
| int err; |
| |
| err = mv88e6xxx_vtu_get(chip, vid, &vlan, true); |
| if (err) |
| return err; |
| |
| vlan.member[port] = member; |
| |
| err = mv88e6xxx_vtu_loadpurge(chip, &vlan); |
| if (err) |
| return err; |
| |
| return mv88e6xxx_broadcast_setup(chip, vid); |
| } |
| |
| static void mv88e6xxx_port_vlan_add(struct dsa_switch *ds, int port, |
| const struct switchdev_obj_port_vlan *vlan) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; |
| bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID; |
| u8 member; |
| u16 vid; |
| |
| if (!chip->info->max_vid) |
| return; |
| |
| if (dsa_is_dsa_port(ds, port) || dsa_is_cpu_port(ds, port)) |
| member = MV88E6XXX_G1_VTU_DATA_MEMBER_TAG_UNMODIFIED; |
| else if (untagged) |
| member = MV88E6XXX_G1_VTU_DATA_MEMBER_TAG_UNTAGGED; |
| else |
| member = MV88E6XXX_G1_VTU_DATA_MEMBER_TAG_TAGGED; |
| |
| mutex_lock(&chip->reg_lock); |
| |
| for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) |
| if (_mv88e6xxx_port_vlan_add(chip, port, vid, member)) |
| dev_err(ds->dev, "p%d: failed to add VLAN %d%c\n", port, |
| vid, untagged ? 'u' : 't'); |
| |
| if (pvid && mv88e6xxx_port_set_pvid(chip, port, vlan->vid_end)) |
| dev_err(ds->dev, "p%d: failed to set PVID %d\n", port, |
| vlan->vid_end); |
| |
| mutex_unlock(&chip->reg_lock); |
| } |
| |
| static int _mv88e6xxx_port_vlan_del(struct mv88e6xxx_chip *chip, |
| int port, u16 vid) |
| { |
| struct mv88e6xxx_vtu_entry vlan; |
| int i, err; |
| |
| err = mv88e6xxx_vtu_get(chip, vid, &vlan, false); |
| if (err) |
| return err; |
| |
| /* Tell switchdev if this VLAN is handled in software */ |
| if (vlan.member[port] == MV88E6XXX_G1_VTU_DATA_MEMBER_TAG_NON_MEMBER) |
| return -EOPNOTSUPP; |
| |
| vlan.member[port] = MV88E6XXX_G1_VTU_DATA_MEMBER_TAG_NON_MEMBER; |
| |
| /* keep the VLAN unless all ports are excluded */ |
| vlan.valid = false; |
| for (i = 0; i < mv88e6xxx_num_ports(chip); ++i) { |
| if (vlan.member[i] != |
| MV88E6XXX_G1_VTU_DATA_MEMBER_TAG_NON_MEMBER) { |
| vlan.valid = true; |
| break; |
| } |
| } |
| |
| err = mv88e6xxx_vtu_loadpurge(chip, &vlan); |
| if (err) |
| return err; |
| |
| return mv88e6xxx_g1_atu_remove(chip, vlan.fid, port, false); |
| } |
| |
| static int mv88e6xxx_port_vlan_del(struct dsa_switch *ds, int port, |
| const struct switchdev_obj_port_vlan *vlan) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| u16 pvid, vid; |
| int err = 0; |
| |
| if (!chip->info->max_vid) |
| return -EOPNOTSUPP; |
| |
| mutex_lock(&chip->reg_lock); |
| |
| err = mv88e6xxx_port_get_pvid(chip, port, &pvid); |
| if (err) |
| goto unlock; |
| |
| for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) { |
| err = _mv88e6xxx_port_vlan_del(chip, port, vid); |
| if (err) |
| goto unlock; |
| |
| if (vid == pvid) { |
| err = mv88e6xxx_port_set_pvid(chip, port, 0); |
| if (err) |
| goto unlock; |
| } |
| } |
| |
| unlock: |
| mutex_unlock(&chip->reg_lock); |
| |
| return err; |
| } |
| |
| static int mv88e6xxx_port_fdb_add(struct dsa_switch *ds, int port, |
| const unsigned char *addr, u16 vid) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int err; |
| |
| mutex_lock(&chip->reg_lock); |
| err = mv88e6xxx_port_db_load_purge(chip, port, addr, vid, |
| MV88E6XXX_G1_ATU_DATA_STATE_UC_STATIC); |
| mutex_unlock(&chip->reg_lock); |
| |
| return err; |
| } |
| |
| static int mv88e6xxx_port_fdb_del(struct dsa_switch *ds, int port, |
| const unsigned char *addr, u16 vid) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int err; |
| |
| mutex_lock(&chip->reg_lock); |
| err = mv88e6xxx_port_db_load_purge(chip, port, addr, vid, |
| MV88E6XXX_G1_ATU_DATA_STATE_UNUSED); |
| mutex_unlock(&chip->reg_lock); |
| |
| return err; |
| } |
| |
| static int mv88e6xxx_port_db_dump_fid(struct mv88e6xxx_chip *chip, |
| u16 fid, u16 vid, int port, |
| dsa_fdb_dump_cb_t *cb, void *data) |
| { |
| struct mv88e6xxx_atu_entry addr; |
| bool is_static; |
| int err; |
| |
| addr.state = MV88E6XXX_G1_ATU_DATA_STATE_UNUSED; |
| eth_broadcast_addr(addr.mac); |
| |
| do { |
| mutex_lock(&chip->reg_lock); |
| err = mv88e6xxx_g1_atu_getnext(chip, fid, &addr); |
| mutex_unlock(&chip->reg_lock); |
| if (err) |
| return err; |
| |
| if (addr.state == MV88E6XXX_G1_ATU_DATA_STATE_UNUSED) |
| break; |
| |
| if (addr.trunk || (addr.portvec & BIT(port)) == 0) |
| continue; |
| |
| if (!is_unicast_ether_addr(addr.mac)) |
| continue; |
| |
| is_static = (addr.state == |
| MV88E6XXX_G1_ATU_DATA_STATE_UC_STATIC); |
| err = cb(addr.mac, vid, is_static, data); |
| if (err) |
| return err; |
| } while (!is_broadcast_ether_addr(addr.mac)); |
| |
| return err; |
| } |
| |
| static int mv88e6xxx_port_db_dump(struct mv88e6xxx_chip *chip, int port, |
| dsa_fdb_dump_cb_t *cb, void *data) |
| { |
| struct mv88e6xxx_vtu_entry vlan = { |
| .vid = chip->info->max_vid, |
| }; |
| u16 fid; |
| int err; |
| |
| /* Dump port's default Filtering Information Database (VLAN ID 0) */ |
| mutex_lock(&chip->reg_lock); |
| err = mv88e6xxx_port_get_fid(chip, port, &fid); |
| mutex_unlock(&chip->reg_lock); |
| |
| if (err) |
| return err; |
| |
| err = mv88e6xxx_port_db_dump_fid(chip, fid, 0, port, cb, data); |
| if (err) |
| return err; |
| |
| /* Dump VLANs' Filtering Information Databases */ |
| do { |
| mutex_lock(&chip->reg_lock); |
| err = mv88e6xxx_vtu_getnext(chip, &vlan); |
| mutex_unlock(&chip->reg_lock); |
| if (err) |
| return err; |
| |
| if (!vlan.valid) |
| break; |
| |
| err = mv88e6xxx_port_db_dump_fid(chip, vlan.fid, vlan.vid, port, |
| cb, data); |
| if (err) |
| return err; |
| } while (vlan.vid < chip->info->max_vid); |
| |
| return err; |
| } |
| |
| static int mv88e6xxx_port_fdb_dump(struct dsa_switch *ds, int port, |
| dsa_fdb_dump_cb_t *cb, void *data) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| |
| return mv88e6xxx_port_db_dump(chip, port, cb, data); |
| } |
| |
| static int mv88e6xxx_bridge_map(struct mv88e6xxx_chip *chip, |
| struct net_device *br) |
| { |
| struct dsa_switch *ds; |
| int port; |
| int dev; |
| int err; |
| |
| /* Remap the Port VLAN of each local bridge group member */ |
| for (port = 0; port < mv88e6xxx_num_ports(chip); ++port) { |
| if (chip->ds->ports[port].bridge_dev == br) { |
| err = mv88e6xxx_port_vlan_map(chip, port); |
| if (err) |
| return err; |
| } |
| } |
| |
| if (!mv88e6xxx_has_pvt(chip)) |
| return 0; |
| |
| /* Remap the Port VLAN of each cross-chip bridge group member */ |
| for (dev = 0; dev < DSA_MAX_SWITCHES; ++dev) { |
| ds = chip->ds->dst->ds[dev]; |
| if (!ds) |
| break; |
| |
| for (port = 0; port < ds->num_ports; ++port) { |
| if (ds->ports[port].bridge_dev == br) { |
| err = mv88e6xxx_pvt_map(chip, dev, port); |
| if (err) |
| return err; |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_port_bridge_join(struct dsa_switch *ds, int port, |
| struct net_device *br) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int err; |
| |
| mutex_lock(&chip->reg_lock); |
| err = mv88e6xxx_bridge_map(chip, br); |
| mutex_unlock(&chip->reg_lock); |
| |
| return err; |
| } |
| |
| static void mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port, |
| struct net_device *br) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| |
| mutex_lock(&chip->reg_lock); |
| if (mv88e6xxx_bridge_map(chip, br) || |
| mv88e6xxx_port_vlan_map(chip, port)) |
| dev_err(ds->dev, "failed to remap in-chip Port VLAN\n"); |
| mutex_unlock(&chip->reg_lock); |
| } |
| |
| static int mv88e6xxx_crosschip_bridge_join(struct dsa_switch *ds, int dev, |
| int port, struct net_device *br) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int err; |
| |
| if (!mv88e6xxx_has_pvt(chip)) |
| return 0; |
| |
| mutex_lock(&chip->reg_lock); |
| err = mv88e6xxx_pvt_map(chip, dev, port); |
| mutex_unlock(&chip->reg_lock); |
| |
| return err; |
| } |
| |
| static void mv88e6xxx_crosschip_bridge_leave(struct dsa_switch *ds, int dev, |
| int port, struct net_device *br) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| |
| if (!mv88e6xxx_has_pvt(chip)) |
| return; |
| |
| mutex_lock(&chip->reg_lock); |
| if (mv88e6xxx_pvt_map(chip, dev, port)) |
| dev_err(ds->dev, "failed to remap cross-chip Port VLAN\n"); |
| mutex_unlock(&chip->reg_lock); |
| } |
| |
| static int mv88e6xxx_software_reset(struct mv88e6xxx_chip *chip) |
| { |
| if (chip->info->ops->reset) |
| return chip->info->ops->reset(chip); |
| |
| return 0; |
| } |
| |
| static void mv88e6xxx_hardware_reset(struct mv88e6xxx_chip *chip) |
| { |
| struct gpio_desc *gpiod = chip->reset; |
| |
| /* If there is a GPIO connected to the reset pin, toggle it */ |
| if (gpiod) { |
| gpiod_set_value_cansleep(gpiod, 1); |
| usleep_range(10000, 20000); |
| gpiod_set_value_cansleep(gpiod, 0); |
| usleep_range(10000, 20000); |
| } |
| } |
| |
| static int mv88e6xxx_disable_ports(struct mv88e6xxx_chip *chip) |
| { |
| int i, err; |
| |
| /* Set all ports to the Disabled state */ |
| for (i = 0; i < mv88e6xxx_num_ports(chip); i++) { |
| err = mv88e6xxx_port_set_state(chip, i, BR_STATE_DISABLED); |
| if (err) |
| return err; |
| } |
| |
| /* Wait for transmit queues to drain, |
| * i.e. 2ms for a maximum frame to be transmitted at 10 Mbps. |
| */ |
| usleep_range(2000, 4000); |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_switch_reset(struct mv88e6xxx_chip *chip) |
| { |
| int err; |
| |
| err = mv88e6xxx_disable_ports(chip); |
| if (err) |
| return err; |
| |
| mv88e6xxx_hardware_reset(chip); |
| |
| return mv88e6xxx_software_reset(chip); |
| } |
| |
| static int mv88e6xxx_set_port_mode(struct mv88e6xxx_chip *chip, int port, |
| enum mv88e6xxx_frame_mode frame, |
| enum mv88e6xxx_egress_mode egress, u16 etype) |
| { |
| int err; |
| |
| if (!chip->info->ops->port_set_frame_mode) |
| return -EOPNOTSUPP; |
| |
| err = mv88e6xxx_port_set_egress_mode(chip, port, egress); |
| if (err) |
| return err; |
| |
| err = chip->info->ops->port_set_frame_mode(chip, port, frame); |
| if (err) |
| return err; |
| |
| if (chip->info->ops->port_set_ether_type) |
| return chip->info->ops->port_set_ether_type(chip, port, etype); |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_set_port_mode_normal(struct mv88e6xxx_chip *chip, int port) |
| { |
| return mv88e6xxx_set_port_mode(chip, port, MV88E6XXX_FRAME_MODE_NORMAL, |
| MV88E6XXX_EGRESS_MODE_UNMODIFIED, |
| MV88E6XXX_PORT_ETH_TYPE_DEFAULT); |
| } |
| |
| static int mv88e6xxx_set_port_mode_dsa(struct mv88e6xxx_chip *chip, int port) |
| { |
| return mv88e6xxx_set_port_mode(chip, port, MV88E6XXX_FRAME_MODE_DSA, |
| MV88E6XXX_EGRESS_MODE_UNMODIFIED, |
| MV88E6XXX_PORT_ETH_TYPE_DEFAULT); |
| } |
| |
| static int mv88e6xxx_set_port_mode_edsa(struct mv88e6xxx_chip *chip, int port) |
| { |
| return mv88e6xxx_set_port_mode(chip, port, |
| MV88E6XXX_FRAME_MODE_ETHERTYPE, |
| MV88E6XXX_EGRESS_MODE_ETHERTYPE, |
| ETH_P_EDSA); |
| } |
| |
| static int mv88e6xxx_setup_port_mode(struct mv88e6xxx_chip *chip, int port) |
| { |
| if (dsa_is_dsa_port(chip->ds, port)) |
| return mv88e6xxx_set_port_mode_dsa(chip, port); |
| |
| if (dsa_is_user_port(chip->ds, port)) |
| return mv88e6xxx_set_port_mode_normal(chip, port); |
| |
| /* Setup CPU port mode depending on its supported tag format */ |
| if (chip->info->tag_protocol == DSA_TAG_PROTO_DSA) |
| return mv88e6xxx_set_port_mode_dsa(chip, port); |
| |
| if (chip->info->tag_protocol == DSA_TAG_PROTO_EDSA) |
| return mv88e6xxx_set_port_mode_edsa(chip, port); |
| |
| return -EINVAL; |
| } |
| |
| static int mv88e6xxx_setup_message_port(struct mv88e6xxx_chip *chip, int port) |
| { |
| bool message = dsa_is_dsa_port(chip->ds, port); |
| |
| return mv88e6xxx_port_set_message_port(chip, port, message); |
| } |
| |
| static int mv88e6xxx_setup_egress_floods(struct mv88e6xxx_chip *chip, int port) |
| { |
| struct dsa_switch *ds = chip->ds; |
| bool flood; |
| |
| /* Upstream ports flood frames with unknown unicast or multicast DA */ |
| flood = dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port); |
| if (chip->info->ops->port_set_egress_floods) |
| return chip->info->ops->port_set_egress_floods(chip, port, |
| flood, flood); |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_serdes_power(struct mv88e6xxx_chip *chip, int port, |
| bool on) |
| { |
| if (chip->info->ops->serdes_power) |
| return chip->info->ops->serdes_power(chip, port, on); |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_setup_upstream_port(struct mv88e6xxx_chip *chip, int port) |
| { |
| struct dsa_switch *ds = chip->ds; |
| int upstream_port; |
| int err; |
| |
| upstream_port = dsa_upstream_port(ds, port); |
| if (chip->info->ops->port_set_upstream_port) { |
| err = chip->info->ops->port_set_upstream_port(chip, port, |
| upstream_port); |
| if (err) |
| return err; |
| } |
| |
| if (port == upstream_port) { |
| if (chip->info->ops->set_cpu_port) { |
| err = chip->info->ops->set_cpu_port(chip, |
| upstream_port); |
| if (err) |
| return err; |
| } |
| |
| if (chip->info->ops->set_egress_port) { |
| err = chip->info->ops->set_egress_port(chip, |
| upstream_port); |
| if (err) |
| return err; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port) |
| { |
| struct dsa_switch *ds = chip->ds; |
| int err; |
| u16 reg; |
| |
| chip->ports[port].chip = chip; |
| chip->ports[port].port = port; |
| |
| /* MAC Forcing register: don't force link, speed, duplex or flow control |
| * state to any particular values on physical ports, but force the CPU |
| * port and all DSA ports to their maximum bandwidth and full duplex. |
| */ |
| if (dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port)) |
| err = mv88e6xxx_port_setup_mac(chip, port, LINK_FORCED_UP, |
| SPEED_MAX, DUPLEX_FULL, |
| PAUSE_OFF, |
| PHY_INTERFACE_MODE_NA); |
| else |
| err = mv88e6xxx_port_setup_mac(chip, port, LINK_UNFORCED, |
| SPEED_UNFORCED, DUPLEX_UNFORCED, |
| PAUSE_ON, |
| PHY_INTERFACE_MODE_NA); |
| if (err) |
| return err; |
| |
| /* Port Control: disable Drop-on-Unlock, disable Drop-on-Lock, |
| * disable Header mode, enable IGMP/MLD snooping, disable VLAN |
| * tunneling, determine priority by looking at 802.1p and IP |
| * priority fields (IP prio has precedence), and set STP state |
| * to Forwarding. |
| * |
| * If this is the CPU link, use DSA or EDSA tagging depending |
| * on which tagging mode was configured. |
| * |
| * If this is a link to another switch, use DSA tagging mode. |
| * |
| * If this is the upstream port for this switch, enable |
| * forwarding of unknown unicasts and multicasts. |
| */ |
| reg = MV88E6XXX_PORT_CTL0_IGMP_MLD_SNOOP | |
| MV88E6185_PORT_CTL0_USE_TAG | MV88E6185_PORT_CTL0_USE_IP | |
| MV88E6XXX_PORT_CTL0_STATE_FORWARDING; |
| err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL0, reg); |
| if (err) |
| return err; |
| |
| err = mv88e6xxx_setup_port_mode(chip, port); |
| if (err) |
| return err; |
| |
| err = mv88e6xxx_setup_egress_floods(chip, port); |
| if (err) |
| return err; |
| |
| /* Enable the SERDES interface for DSA and CPU ports. Normal |
| * ports SERDES are enabled when the port is enabled, thus |
| * saving a bit of power. |
| */ |
| if ((dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port))) { |
| err = mv88e6xxx_serdes_power(chip, port, true); |
| if (err) |
| return err; |
| } |
| |
| /* Port Control 2: don't force a good FCS, set the maximum frame size to |
| * 10240 bytes, disable 802.1q tags checking, don't discard tagged or |
| * untagged frames on this port, do a destination address lookup on all |
| * received packets as usual, disable ARP mirroring and don't send a |
| * copy of all transmitted/received frames on this port to the CPU. |
| */ |
| err = mv88e6xxx_port_set_map_da(chip, port); |
| if (err) |
| return err; |
| |
| err = mv88e6xxx_setup_upstream_port(chip, port); |
| if (err) |
| return err; |
| |
| err = mv88e6xxx_port_set_8021q_mode(chip, port, |
| MV88E6XXX_PORT_CTL2_8021Q_MODE_DISABLED); |
| if (err) |
| return err; |
| |
| if (chip->info->ops->port_set_jumbo_size) { |
| err = chip->info->ops->port_set_jumbo_size(chip, port, 10240); |
| if (err) |
| return err; |
| } |
| |
| /* Port Association Vector: when learning source addresses |
| * of packets, add the address to the address database using |
| * a port bitmap that has only the bit for this port set and |
| * the other bits clear. |
| */ |
| reg = 1 << port; |
| /* Disable learning for CPU port */ |
| if (dsa_is_cpu_port(ds, port)) |
| reg = 0; |
| |
| err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_ASSOC_VECTOR, |
| reg); |
| if (err) |
| return err; |
| |
| /* Egress rate control 2: disable egress rate control. */ |
| err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_EGRESS_RATE_CTL2, |
| 0x0000); |
| if (err) |
| return err; |
| |
| if (chip->info->ops->port_pause_limit) { |
| err = chip->info->ops->port_pause_limit(chip, port, 0, 0); |
| if (err) |
| return err; |
| } |
| |
| if (chip->info->ops->port_disable_learn_limit) { |
| err = chip->info->ops->port_disable_learn_limit(chip, port); |
| if (err) |
| return err; |
| } |
| |
| if (chip->info->ops->port_disable_pri_override) { |
| err = chip->info->ops->port_disable_pri_override(chip, port); |
| if (err) |
| return err; |
| } |
| |
| if (chip->info->ops->port_tag_remap) { |
| err = chip->info->ops->port_tag_remap(chip, port); |
| if (err) |
| return err; |
| } |
| |
| if (chip->info->ops->port_egress_rate_limiting) { |
| err = chip->info->ops->port_egress_rate_limiting(chip, port); |
| if (err) |
| return err; |
| } |
| |
| err = mv88e6xxx_setup_message_port(chip, port); |
| if (err) |
| return err; |
| |
| /* Port based VLAN map: give each port the same default address |
| * database, and allow bidirectional communication between the |
| * CPU and DSA port(s), and the other ports. |
| */ |
| err = mv88e6xxx_port_set_fid(chip, port, 0); |
| if (err) |
| return err; |
| |
| err = mv88e6xxx_port_vlan_map(chip, port); |
| if (err) |
| return err; |
| |
| /* Default VLAN ID and priority: don't set a default VLAN |
| * ID, and set the default packet priority to zero. |
| */ |
| return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_DEFAULT_VLAN, 0); |
| } |
| |
| static int mv88e6xxx_port_enable(struct dsa_switch *ds, int port, |
| struct phy_device *phydev) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int err; |
| |
| mutex_lock(&chip->reg_lock); |
| |
| err = mv88e6xxx_serdes_power(chip, port, true); |
| |
| if (!err && chip->info->ops->serdes_irq_setup) |
| err = chip->info->ops->serdes_irq_setup(chip, port); |
| |
| mutex_unlock(&chip->reg_lock); |
| |
| return err; |
| } |
| |
| static void mv88e6xxx_port_disable(struct dsa_switch *ds, int port, |
| struct phy_device *phydev) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| |
| mutex_lock(&chip->reg_lock); |
| |
| if (chip->info->ops->serdes_irq_free) |
| chip->info->ops->serdes_irq_free(chip, port); |
| |
| if (mv88e6xxx_serdes_power(chip, port, false)) |
| dev_err(chip->dev, "failed to power off SERDES\n"); |
| |
| mutex_unlock(&chip->reg_lock); |
| } |
| |
| static int mv88e6xxx_set_ageing_time(struct dsa_switch *ds, |
| unsigned int ageing_time) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int err; |
| |
| mutex_lock(&chip->reg_lock); |
| err = mv88e6xxx_g1_atu_set_age_time(chip, ageing_time); |
| mutex_unlock(&chip->reg_lock); |
| |
| return err; |
| } |
| |
| static int mv88e6xxx_stats_setup(struct mv88e6xxx_chip *chip) |
| { |
| int err; |
| |
| /* Initialize the statistics unit */ |
| if (chip->info->ops->stats_set_histogram) { |
| err = chip->info->ops->stats_set_histogram(chip); |
| if (err) |
| return err; |
| } |
| |
| return mv88e6xxx_g1_stats_clear(chip); |
| } |
| |
| /* The mv88e6390 has some hidden registers used for debug and |
| * development. The errata also makes use of them. |
| */ |
| static int mv88e6390_hidden_write(struct mv88e6xxx_chip *chip, int port, |
| int reg, u16 val) |
| { |
| u16 ctrl; |
| int err; |
| |
| err = mv88e6xxx_port_write(chip, PORT_RESERVED_1A_DATA_PORT, |
| PORT_RESERVED_1A, val); |
| if (err) |
| return err; |
| |
| ctrl = PORT_RESERVED_1A_BUSY | PORT_RESERVED_1A_WRITE | |
| PORT_RESERVED_1A_BLOCK | port << PORT_RESERVED_1A_PORT_SHIFT | |
| reg; |
| |
| return mv88e6xxx_port_write(chip, PORT_RESERVED_1A_CTRL_PORT, |
| PORT_RESERVED_1A, ctrl); |
| } |
| |
| static int mv88e6390_hidden_wait(struct mv88e6xxx_chip *chip) |
| { |
| return mv88e6xxx_wait(chip, PORT_RESERVED_1A_CTRL_PORT, |
| PORT_RESERVED_1A, PORT_RESERVED_1A_BUSY); |
| } |
| |
| |
| static int mv88e6390_hidden_read(struct mv88e6xxx_chip *chip, int port, |
| int reg, u16 *val) |
| { |
| u16 ctrl; |
| int err; |
| |
| ctrl = PORT_RESERVED_1A_BUSY | PORT_RESERVED_1A_READ | |
| PORT_RESERVED_1A_BLOCK | port << PORT_RESERVED_1A_PORT_SHIFT | |
| reg; |
| |
| err = mv88e6xxx_port_write(chip, PORT_RESERVED_1A_CTRL_PORT, |
| PORT_RESERVED_1A, ctrl); |
| if (err) |
| return err; |
| |
| err = mv88e6390_hidden_wait(chip); |
| if (err) |
| return err; |
| |
| return mv88e6xxx_port_read(chip, PORT_RESERVED_1A_DATA_PORT, |
| PORT_RESERVED_1A, val); |
| } |
| |
| /* Check if the errata has already been applied. */ |
| static bool mv88e6390_setup_errata_applied(struct mv88e6xxx_chip *chip) |
| { |
| int port; |
| int err; |
| u16 val; |
| |
| for (port = 0; port < mv88e6xxx_num_ports(chip); port++) { |
| err = mv88e6390_hidden_read(chip, port, 0, &val); |
| if (err) { |
| dev_err(chip->dev, |
| "Error reading hidden register: %d\n", err); |
| return false; |
| } |
| if (val != 0x01c0) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| /* The 6390 copper ports have an errata which require poking magic |
| * values into undocumented hidden registers and then performing a |
| * software reset. |
| */ |
| static int mv88e6390_setup_errata(struct mv88e6xxx_chip *chip) |
| { |
| int port; |
| int err; |
| |
| if (mv88e6390_setup_errata_applied(chip)) |
| return 0; |
| |
| /* Set the ports into blocking mode */ |
| for (port = 0; port < mv88e6xxx_num_ports(chip); port++) { |
| err = mv88e6xxx_port_set_state(chip, port, BR_STATE_DISABLED); |
| if (err) |
| return err; |
| } |
| |
| for (port = 0; port < mv88e6xxx_num_ports(chip); port++) { |
| err = mv88e6390_hidden_write(chip, port, 0, 0x01c0); |
| if (err) |
| return err; |
| } |
| |
| return mv88e6xxx_software_reset(chip); |
| } |
| |
| static int mv88e6xxx_setup(struct dsa_switch *ds) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| u8 cmode; |
| int err; |
| int i; |
| |
| chip->ds = ds; |
| ds->slave_mii_bus = mv88e6xxx_default_mdio_bus(chip); |
| |
| mutex_lock(&chip->reg_lock); |
| |
| if (chip->info->ops->setup_errata) { |
| err = chip->info->ops->setup_errata(chip); |
| if (err) |
| goto unlock; |
| } |
| |
| /* Cache the cmode of each port. */ |
| for (i = 0; i < mv88e6xxx_num_ports(chip); i++) { |
| if (chip->info->ops->port_get_cmode) { |
| err = chip->info->ops->port_get_cmode(chip, i, &cmode); |
| if (err) |
| goto unlock; |
| |
| chip->ports[i].cmode = cmode; |
| } |
| } |
| |
| /* Setup Switch Port Registers */ |
| for (i = 0; i < mv88e6xxx_num_ports(chip); i++) { |
| if (dsa_is_unused_port(ds, i)) |
| continue; |
| |
| err = mv88e6xxx_setup_port(chip, i); |
| if (err) |
| goto unlock; |
| } |
| |
| err = mv88e6xxx_irl_setup(chip); |
| if (err) |
| goto unlock; |
| |
| err = mv88e6xxx_mac_setup(chip); |
| if (err) |
| goto unlock; |
| |
| err = mv88e6xxx_phy_setup(chip); |
| if (err) |
| goto unlock; |
| |
| err = mv88e6xxx_vtu_setup(chip); |
| if (err) |
| goto unlock; |
| |
| err = mv88e6xxx_pvt_setup(chip); |
| if (err) |
| goto unlock; |
| |
| err = mv88e6xxx_atu_setup(chip); |
| if (err) |
| goto unlock; |
| |
| err = mv88e6xxx_broadcast_setup(chip, 0); |
| if (err) |
| goto unlock; |
| |
| err = mv88e6xxx_pot_setup(chip); |
| if (err) |
| goto unlock; |
| |
| err = mv88e6xxx_rmu_setup(chip); |
| if (err) |
| goto unlock; |
| |
| err = mv88e6xxx_rsvd2cpu_setup(chip); |
| if (err) |
| goto unlock; |
| |
| err = mv88e6xxx_trunk_setup(chip); |
| if (err) |
| goto unlock; |
| |
| err = mv88e6xxx_devmap_setup(chip); |
| if (err) |
| goto unlock; |
| |
| err = mv88e6xxx_pri_setup(chip); |
| if (err) |
| goto unlock; |
| |
| /* Setup PTP Hardware Clock and timestamping */ |
| if (chip->info->ptp_support) { |
| err = mv88e6xxx_ptp_setup(chip); |
| if (err) |
| goto unlock; |
| |
| err = mv88e6xxx_hwtstamp_setup(chip); |
| if (err) |
| goto unlock; |
| } |
| |
| err = mv88e6xxx_stats_setup(chip); |
| if (err) |
| goto unlock; |
| |
| unlock: |
| mutex_unlock(&chip->reg_lock); |
| |
| return err; |
| } |
| |
| /* prod_id for switch families which do not have a PHY model number */ |
| static const u16 family_prod_id_table[] = { |
| [MV88E6XXX_FAMILY_6341] = MV88E6XXX_PORT_SWITCH_ID_PROD_6341, |
| [MV88E6XXX_FAMILY_6390] = MV88E6XXX_PORT_SWITCH_ID_PROD_6390, |
| }; |
| |
| static int mv88e6xxx_mdio_read(struct mii_bus *bus, int phy, int reg) |
| { |
| struct mv88e6xxx_mdio_bus *mdio_bus = bus->priv; |
| struct mv88e6xxx_chip *chip = mdio_bus->chip; |
| u16 prod_id; |
| u16 val; |
| int err; |
| |
| if (!chip->info->ops->phy_read) |
| return -EOPNOTSUPP; |
| |
| mutex_lock(&chip->reg_lock); |
| err = chip->info->ops->phy_read(chip, bus, phy, reg, &val); |
| mutex_unlock(&chip->reg_lock); |
| |
| /* Some internal PHYs don't have a model number. */ |
| if (reg == MII_PHYSID2 && !(val & 0x3f0) && |
| chip->info->family < ARRAY_SIZE(family_prod_id_table)) { |
| prod_id = family_prod_id_table[chip->info->family]; |
| if (prod_id) |
| val |= prod_id >> 4; |
| } |
| |
| return err ? err : val; |
| } |
| |
| static int mv88e6xxx_mdio_write(struct mii_bus *bus, int phy, int reg, u16 val) |
| { |
| struct mv88e6xxx_mdio_bus *mdio_bus = bus->priv; |
| struct mv88e6xxx_chip *chip = mdio_bus->chip; |
| int err; |
| |
| if (!chip->info->ops->phy_write) |
| return -EOPNOTSUPP; |
| |
| mutex_lock(&chip->reg_lock); |
| err = chip->info->ops->phy_write(chip, bus, phy, reg, val); |
| mutex_unlock(&chip->reg_lock); |
| |
| return err; |
| } |
| |
| static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip, |
| struct device_node *np, |
| bool external) |
| { |
| static int index; |
| struct mv88e6xxx_mdio_bus *mdio_bus; |
| struct mii_bus *bus; |
| int err; |
| |
| if (external) { |
| mutex_lock(&chip->reg_lock); |
| err = mv88e6xxx_g2_scratch_gpio_set_smi(chip, true); |
| mutex_unlock(&chip->reg_lock); |
| |
| if (err) |
| return err; |
| } |
| |
| bus = devm_mdiobus_alloc_size(chip->dev, sizeof(*mdio_bus)); |
| if (!bus) |
| return -ENOMEM; |
| |
| mdio_bus = bus->priv; |
| mdio_bus->bus = bus; |
| mdio_bus->chip = chip; |
| INIT_LIST_HEAD(&mdio_bus->list); |
| mdio_bus->external = external; |
| |
| if (np) { |
| bus->name = np->full_name; |
| snprintf(bus->id, MII_BUS_ID_SIZE, "%pOF", np); |
| } else { |
| bus->name = "mv88e6xxx SMI"; |
| snprintf(bus->id, MII_BUS_ID_SIZE, "mv88e6xxx-%d", index++); |
| } |
| |
| bus->read = mv88e6xxx_mdio_read; |
| bus->write = mv88e6xxx_mdio_write; |
| bus->parent = chip->dev; |
| |
| if (!external) { |
| err = mv88e6xxx_g2_irq_mdio_setup(chip, bus); |
| if (err) |
| return err; |
| } |
| |
| err = of_mdiobus_register(bus, np); |
| if (err) { |
| dev_err(chip->dev, "Cannot register MDIO bus (%d)\n", err); |
| mv88e6xxx_g2_irq_mdio_free(chip, bus); |
| return err; |
| } |
| |
| if (external) |
| list_add_tail(&mdio_bus->list, &chip->mdios); |
| else |
| list_add(&mdio_bus->list, &chip->mdios); |
| |
| return 0; |
| } |
| |
| static const struct of_device_id mv88e6xxx_mdio_external_match[] = { |
| { .compatible = "marvell,mv88e6xxx-mdio-external", |
| .data = (void *)true }, |
| { }, |
| }; |
| |
| static void mv88e6xxx_mdios_unregister(struct mv88e6xxx_chip *chip) |
| |
| { |
| struct mv88e6xxx_mdio_bus *mdio_bus; |
| struct mii_bus *bus; |
| |
| list_for_each_entry(mdio_bus, &chip->mdios, list) { |
| bus = mdio_bus->bus; |
| |
| if (!mdio_bus->external) |
| mv88e6xxx_g2_irq_mdio_free(chip, bus); |
| |
| mdiobus_unregister(bus); |
| } |
| } |
| |
| static int mv88e6xxx_mdios_register(struct mv88e6xxx_chip *chip, |
| struct device_node *np) |
| { |
| const struct of_device_id *match; |
| struct device_node *child; |
| int err; |
| |
| /* Always register one mdio bus for the internal/default mdio |
| * bus. This maybe represented in the device tree, but is |
| * optional. |
| */ |
| child = of_get_child_by_name(np, "mdio"); |
| err = mv88e6xxx_mdio_register(chip, child, false); |
| if (err) |
| return err; |
| |
| /* Walk the device tree, and see if there are any other nodes |
| * which say they are compatible with the external mdio |
| * bus. |
| */ |
| for_each_available_child_of_node(np, child) { |
| match = of_match_node(mv88e6xxx_mdio_external_match, child); |
| if (match) { |
| err = mv88e6xxx_mdio_register(chip, child, true); |
| if (err) { |
| mv88e6xxx_mdios_unregister(chip); |
| return err; |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_get_eeprom_len(struct dsa_switch *ds) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| |
| return chip->eeprom_len; |
| } |
| |
| static int mv88e6xxx_get_eeprom(struct dsa_switch *ds, |
| struct ethtool_eeprom *eeprom, u8 *data) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int err; |
| |
| if (!chip->info->ops->get_eeprom) |
| return -EOPNOTSUPP; |
| |
| mutex_lock(&chip->reg_lock); |
| err = chip->info->ops->get_eeprom(chip, eeprom, data); |
| mutex_unlock(&chip->reg_lock); |
| |
| if (err) |
| return err; |
| |
| eeprom->magic = 0xc3ec4951; |
| |
| return 0; |
| } |
| |
| static int mv88e6xxx_set_eeprom(struct dsa_switch *ds, |
| struct ethtool_eeprom *eeprom, u8 *data) |
| { |
| struct mv88e6xxx_chip *chip = ds->priv; |
| int err; |
| |
| if (!chip->info->ops->set_eeprom) |
| return -EOPNOTSUPP; |
| |
| if (eeprom->magic != 0xc3ec4951) |
| return -EINVAL; |
| |
| mutex_lock(&chip->reg_lock); |
| err = chip->info->ops->set_eeprom(chip, eeprom, data); |
| mutex_unlock(&chip->reg_lock); |
| |
| return err; |
| } |
| |
| static const struct mv88e6xxx_ops mv88e6085_ops = { |
| /* MV88E6XXX_FAMILY_6097 */ |
| .ieee_pri_map = mv88e6085_g1_ieee_pri_map, |
| .ip_pri_map = mv88e6085_g1_ip_pri_map, |
| .irl_init_all = mv88e6352_g2_irl_init_all, |
| .set_switch_mac = mv88e6xxx_g1_set_switch_mac, |
| .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_tag_remap = mv88e6095_port_tag_remap, |
| .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_egress_rate_limiting = mv88e6097_port_egress_rate_limiting, |
| .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, |
| .port_link_state = mv88e6352_port_link_state, |
| .port_get_cmode = mv88e6185_port_get_cmode, |
| .stats_snapshot = mv88e6xxx_g1_stats_snapshot, |
| .stats_set_histogram = mv88e6095_g1_stats_set_histogram, |
| .stats_get_sset_count = mv88e6095_stats_get_sset_count, |
| .stats_get_strings = mv88e6095_stats_get_strings, |
| .stats_get_stats = mv88e6095_stats_get_stats, |
| .set_cpu_port = mv88e6095_g1_set_cpu_port, |
| .set_egress_port = mv88e6095_g1_set_egress_port, |
| .watchdog_ops = &mv88e6097_watchdog_ops, |
| .mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu, |
| .pot_clear = mv88e6xxx_g2_pot_clear, |
| .ppu_enable = mv88e6185_g1_ppu_enable, |
| .ppu_disable = mv88e6185_g1_ppu_disable, |
| .reset = mv88e6185_g1_reset, |
| .rmu_disable = mv88e6085_g1_rmu_disable, |
| .vtu_getnext = mv88e6352_g1_vtu_getnext, |
| .vtu_loadpurge = mv88e6352_g1_vtu_loadpurge, |
| .phylink_validate = mv88e6185_phylink_validate, |
| }; |
| |
| static const struct mv88e6xxx_ops mv88e6095_ops = { |
| /* MV88E6XXX_FAMILY_6095 */ |
| .ieee_pri_map = mv88e6085_g1_ieee_pri_map, |
| .ip_pri_map = mv88e6085_g1_ip_pri_map, |
| .set_switch_mac = mv88e6xxx_g1_set_switch_mac, |
| .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_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, |
| .port_link_state = mv88e6185_port_link_state, |
| .port_get_cmode = mv88e6185_port_get_cmode, |
| .stats_snapshot = mv88e6xxx_g1_stats_snapshot, |
| .stats_set_histogram = mv88e6095_g1_stats_set_histogram, |
| .stats_get_sset_count = mv88e6095_stats_get_sset_count, |
| .stats_get_strings = mv88e6095_stats_get_strings, |
| .stats_get_stats = mv88e6095_stats_get_stats, |
| .mgmt_rsvd2cpu = mv88e6185_g2_mgmt_rsvd2cpu, |
| .ppu_enable = mv88e6185_g1_ppu_enable, |
| .ppu_disable = mv88e6185_g1_ppu_disable, |
| .reset = mv88e6185_g1_reset, |
| .vtu_getnext = mv88e6185_g1_vtu_getnext, |
| .vtu_loadpurge = mv88e6185_g1_vtu_loadpurge, |
| .phylink_validate = mv88e6185_phylink_validate, |
| }; |
| |
| static const struct mv88e6xxx_ops mv88e6097_ops = { |
| /* MV88E6XXX_FAMILY_6097 */ |
| .ieee_pri_map = mv88e6085_g1_ieee_pri_map, |
| .ip_pri_map = mv88e6085_g1_ip_pri_map, |
| .irl_init_all = mv88e6352_g2_irl_init_all, |
| .set_switch_mac = mv88e6xxx_g2_set_switch_mac, |
| .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_tag_remap = mv88e6095_port_tag_remap, |
| .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_egress_rate_limiting = mv88e6095_port_egress_rate_limiting, |
| .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, |
| .port_link_state = mv88e6352_port_link_state, |
| .port_get_cmode = mv88e6185_port_get_cmode, |
| .stats_snapshot = mv88e6xxx_g1_stats_snapshot, |
| .stats_set_histogram = mv88e6095_g1_stats_set_histogram, |
| .stats_get_sset_count = mv88e6095_stats_get_sset_count, |
| .stats_get_strings = mv88e6095_stats_get_strings, |
| .stats_get_stats = mv88e6095_stats_get_stats, |
| .set_cpu_port = mv88e6095_g1_set_cpu_port, |
| .set_egress_port = mv88e6095_g1_set_egress_port, |
| .watchdog_ops = &mv88e6097_watchdog_ops, |
| .mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu, |
| .pot_clear = mv88e6xxx_g2_pot_clear, |
| .reset = mv88e6352_g1_reset, |
| .rmu_disable = mv88e6085_g1_rmu_disable, |
| .vtu_getnext = mv88e6352_g1_vtu_getnext, |
| .vtu_loadpurge = mv88e6352_g1_vtu_loadpurge, |
| .phylink_validate = mv88e6185_phylink_validate, |
| }; |
| |
| static const struct mv88e6xxx_ops mv88e6123_ops = { |
| /* MV88E6XXX_FAMILY_6165 */ |
| .ieee_pri_map = mv88e6085_g1_ieee_pri_map, |
| .ip_pri_map = mv88e6085_g1_ip_pri_map, |
| .irl_init_all = mv88e6352_g2_irl_init_all, |
| .set_switch_mac = mv88e6xxx_g2_set_switch_mac, |
| .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_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, |
| .port_disable_pri_override = mv88e6xxx_port_disable_pri_override, |
| .port_link_state = mv88e6352_port_link_state, |
| .port_get_cmode = mv88e6185_port_get_cmode, |
| .stats_snapshot = mv88e6320_g1_stats_snapshot, |
| .stats_set_histogram = mv88e6095_g1_stats_set_histogram, |
| .stats_get_sset_count = mv88e6095_stats_get_sset_count, |
| .stats_get_strings = mv88e6095_stats_get_strings, |
| .stats_get_stats = mv88e6095_stats_get_stats, |
| .set_cpu_port = mv88e6095_g1_set_cpu_port, |
| .set_egress_port = mv88e6095_g1_set_egress_port, |
| .watchdog_ops = &mv88e6097_watchdog_ops, |
| .mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu, |
| .pot_clear = mv88e6xxx_g2_pot_clear, |
| .reset = mv88e6352_g1_reset, |
| .vtu_getnext = mv88e6352_g1_vtu_getnext, |
| .vtu_loadpurge = mv88e6352_g1_vtu_loadpurge, |
| .phylink_validate = mv88e6185_phylink_validate, |
| }; |
| |
| static const struct mv88e6xxx_ops mv88e6131_ops = { |
| /* MV88E6XXX_FAMILY_6185 */ |
| .ieee_pri_map = mv88e6085_g1_ieee_pri_map, |
| .ip_pri_map = mv88e6085_g1_ip_pri_map, |
| .set_switch_mac = mv88e6xxx_g1_set_switch_mac, |
| .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_tag_remap = mv88e6095_port_tag_remap, |
| .port_set_frame_mode = mv88e6351_port_set_frame_mode, |
| .port_set_egress_floods = mv88e6185_port_set_egress_floods, |
| .port_set_ether_type = mv88e6351_port_set_ether_type, |
| .port_set_upstream_port = mv88e6095_port_set_upstream_port, |
| .port_set_jumbo_size = mv88e6165_port_set_jumbo_size, |
| .port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting, |
| .port_pause_limit = mv88e6097_port_pause_limit, |
| .port_set_pause = mv88e6185_port_set_pause, |
| .port_link_state = mv88e6352_port_link_state, |
| .port_get_cmode = mv88e6185_port_get_cmode, |
| .stats_snapshot = mv88e6xxx_g1_stats_snapshot, |
| .stats_set_histogram = mv88e6095_g1_stats_set_histogram, |
| .stats_get_sset_count = mv88e6095_stats_get_sset_count, |
| .stats_get_strings = mv88e6095_stats_get_strings, |
| .stats_get_stats = mv88e6095_stats_get_stats, |
| .set_cpu_port = mv88e6095_g1_set_cpu_port, |
| .set_egress_port = mv88e6095_g1_set_egress_port, |
| .watchdog_ops = &mv88e6097_watchdog_ops, |
| .mgmt_rsvd2cpu = mv88e6185_g2_mgmt_rsvd2cpu, |
| .ppu_enable = mv88e6185_g1_ppu_enable, |
| .set_cascade_port = mv88e6185_g1_set_cascade_port, |
| .ppu_disable = mv88e6185_g1_ppu_disable, |
| .reset = mv88e6185_g1_reset, |
| .vtu_getnext = mv88e6185_g1_vtu_getnext, |
| .vtu_loadpurge = mv88e6185_g1_vtu_loadpurge, |
|