diff options
Diffstat (limited to 'drivers/net/dsa/mv88e6xxx.c')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx.c | 3723 |
1 files changed, 0 insertions, 3723 deletions
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c deleted file mode 100644 index ba9dfc9421ef..000000000000 --- a/drivers/net/dsa/mv88e6xxx.c +++ /dev/null @@ -1,3723 +0,0 @@ -/* - * net/dsa/mv88e6xxx.c - Marvell 88e6xxx switch chip support - * Copyright (c) 2008 Marvell Semiconductor - * - * Copyright (c) 2015 CMC Electronics, Inc. - * Added support for VLAN Table Unit operations - * - * Copyright (c) 2016 Andrew Lunn <andrew@lunn.ch> - * - * 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/jiffies.h> -#include <linux/list.h> -#include <linux/mdio.h> -#include <linux/module.h> -#include <linux/netdevice.h> -#include <linux/gpio/consumer.h> -#include <linux/phy.h> -#include <net/dsa.h> -#include <net/switchdev.h> -#include "mv88e6xxx.h" - -static void assert_smi_lock(struct mv88e6xxx_priv_state *ps) -{ - if (unlikely(!mutex_is_locked(&ps->smi_mutex))) { - dev_err(ps->dev, "SMI lock not held!\n"); - dump_stack(); - } -} - -/* If the switch's ADDR[4:0] strap pins are strapped to zero, it will - * use all 32 SMI bus addresses on its SMI bus, and all switch registers - * will be directly accessible on some {device address,register address} - * pair. If the ADDR[4:0] pins are not strapped to zero, the switch - * will only respond to SMI transactions to that specific address, and - * an indirect addressing mechanism needs to be used to access its - * registers. - */ -static int mv88e6xxx_reg_wait_ready(struct mii_bus *bus, int sw_addr) -{ - int ret; - int i; - - for (i = 0; i < 16; i++) { - ret = mdiobus_read_nested(bus, sw_addr, SMI_CMD); - if (ret < 0) - return ret; - - if ((ret & SMI_CMD_BUSY) == 0) - return 0; - } - - return -ETIMEDOUT; -} - -static int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, - int reg) -{ - int ret; - - if (sw_addr == 0) - return mdiobus_read_nested(bus, addr, reg); - - /* Wait for the bus to become free. */ - ret = mv88e6xxx_reg_wait_ready(bus, sw_addr); - if (ret < 0) - return ret; - - /* Transmit the read command. */ - ret = mdiobus_write_nested(bus, 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_reg_wait_ready(bus, sw_addr); - if (ret < 0) - return ret; - - /* Read the data. */ - ret = mdiobus_read_nested(bus, sw_addr, SMI_DATA); - if (ret < 0) - return ret; - - return ret & 0xffff; -} - -static int _mv88e6xxx_reg_read(struct mv88e6xxx_priv_state *ps, - int addr, int reg) -{ - int ret; - - assert_smi_lock(ps); - - ret = __mv88e6xxx_reg_read(ps->bus, ps->sw_addr, addr, reg); - if (ret < 0) - return ret; - - dev_dbg(ps->dev, "<- addr: 0x%.2x reg: 0x%.2x val: 0x%.4x\n", - addr, reg, ret); - - return ret; -} - -int mv88e6xxx_reg_read(struct mv88e6xxx_priv_state *ps, int addr, int reg) -{ - int ret; - - mutex_lock(&ps->smi_mutex); - ret = _mv88e6xxx_reg_read(ps, addr, reg); - mutex_unlock(&ps->smi_mutex); - - return ret; -} - -static int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr, - int reg, u16 val) -{ - int ret; - - if (sw_addr == 0) - return mdiobus_write_nested(bus, addr, reg, val); - - /* Wait for the bus to become free. */ - ret = mv88e6xxx_reg_wait_ready(bus, sw_addr); - if (ret < 0) - return ret; - - /* Transmit the data to write. */ - ret = mdiobus_write_nested(bus, sw_addr, SMI_DATA, val); - if (ret < 0) - return ret; - - /* Transmit the write command. */ - ret = mdiobus_write_nested(bus, 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_reg_wait_ready(bus, sw_addr); - if (ret < 0) - return ret; - - return 0; -} - -static int _mv88e6xxx_reg_write(struct mv88e6xxx_priv_state *ps, int addr, - int reg, u16 val) -{ - assert_smi_lock(ps); - - dev_dbg(ps->dev, "-> addr: 0x%.2x reg: 0x%.2x val: 0x%.4x\n", - addr, reg, val); - - return __mv88e6xxx_reg_write(ps->bus, ps->sw_addr, addr, reg, val); -} - -int mv88e6xxx_reg_write(struct mv88e6xxx_priv_state *ps, int addr, - int reg, u16 val) -{ - int ret; - - mutex_lock(&ps->smi_mutex); - ret = _mv88e6xxx_reg_write(ps, addr, reg, val); - mutex_unlock(&ps->smi_mutex); - - return ret; -} - -static int mv88e6xxx_set_addr_direct(struct dsa_switch *ds, u8 *addr) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - int err; - - err = mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_MAC_01, - (addr[0] << 8) | addr[1]); - if (err) - return err; - - err = mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_MAC_23, - (addr[2] << 8) | addr[3]); - if (err) - return err; - - return mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_MAC_45, - (addr[4] << 8) | addr[5]); -} - -static int mv88e6xxx_set_addr_indirect(struct dsa_switch *ds, u8 *addr) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - int ret; - int i; - - for (i = 0; i < 6; i++) { - int j; - - /* Write the MAC address byte. */ - ret = mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_SWITCH_MAC, - GLOBAL2_SWITCH_MAC_BUSY | - (i << 8) | addr[i]); - if (ret) - return ret; - - /* Wait for the write to complete. */ - for (j = 0; j < 16; j++) { - ret = mv88e6xxx_reg_read(ps, REG_GLOBAL2, - GLOBAL2_SWITCH_MAC); - if (ret < 0) - return ret; - - if ((ret & GLOBAL2_SWITCH_MAC_BUSY) == 0) - break; - } - if (j == 16) - return -ETIMEDOUT; - } - - return 0; -} - -int mv88e6xxx_set_addr(struct dsa_switch *ds, u8 *addr) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - - if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_SWITCH_MAC)) - return mv88e6xxx_set_addr_indirect(ds, addr); - else - return mv88e6xxx_set_addr_direct(ds, addr); -} - -static int _mv88e6xxx_phy_read(struct mv88e6xxx_priv_state *ps, int addr, - int regnum) -{ - if (addr >= 0) - return _mv88e6xxx_reg_read(ps, addr, regnum); - return 0xffff; -} - -static int _mv88e6xxx_phy_write(struct mv88e6xxx_priv_state *ps, int addr, - int regnum, u16 val) -{ - if (addr >= 0) - return _mv88e6xxx_reg_write(ps, addr, regnum, val); - return 0; -} - -static int mv88e6xxx_ppu_disable(struct mv88e6xxx_priv_state *ps) -{ - int ret; - unsigned long timeout; - - ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_CONTROL); - if (ret < 0) - return ret; - - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_CONTROL, - ret & ~GLOBAL_CONTROL_PPU_ENABLE); - if (ret) - return ret; - - timeout = jiffies + 1 * HZ; - while (time_before(jiffies, timeout)) { - ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_STATUS); - if (ret < 0) - return ret; - - usleep_range(1000, 2000); - if ((ret & GLOBAL_STATUS_PPU_MASK) != - GLOBAL_STATUS_PPU_POLLING) - return 0; - } - - return -ETIMEDOUT; -} - -static int mv88e6xxx_ppu_enable(struct mv88e6xxx_priv_state *ps) -{ - int ret, err; - unsigned long timeout; - - ret = mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_CONTROL); - if (ret < 0) - return ret; - - err = mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_CONTROL, - ret | GLOBAL_CONTROL_PPU_ENABLE); - if (err) - return err; - - timeout = jiffies + 1 * HZ; - while (time_before(jiffies, timeout)) { - ret = mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_STATUS); - if (ret < 0) - return ret; - - usleep_range(1000, 2000); - if ((ret & GLOBAL_STATUS_PPU_MASK) == - GLOBAL_STATUS_PPU_POLLING) - return 0; - } - - return -ETIMEDOUT; -} - -static void mv88e6xxx_ppu_reenable_work(struct work_struct *ugly) -{ - struct mv88e6xxx_priv_state *ps; - - ps = container_of(ugly, struct mv88e6xxx_priv_state, ppu_work); - if (mutex_trylock(&ps->ppu_mutex)) { - if (mv88e6xxx_ppu_enable(ps) == 0) - ps->ppu_disabled = 0; - mutex_unlock(&ps->ppu_mutex); - } -} - -static void mv88e6xxx_ppu_reenable_timer(unsigned long _ps) -{ - struct mv88e6xxx_priv_state *ps = (void *)_ps; - - schedule_work(&ps->ppu_work); -} - -static int mv88e6xxx_ppu_access_get(struct mv88e6xxx_priv_state *ps) -{ - int ret; - - mutex_lock(&ps->ppu_mutex); - - /* If the PHY polling unit is enabled, disable it so that - * we can access the PHY registers. If it was already - * disabled, cancel the timer that is going to re-enable - * it. - */ - if (!ps->ppu_disabled) { - ret = mv88e6xxx_ppu_disable(ps); - if (ret < 0) { - mutex_unlock(&ps->ppu_mutex); - return ret; - } - ps->ppu_disabled = 1; - } else { - del_timer(&ps->ppu_timer); - ret = 0; - } - - return ret; -} - -static void mv88e6xxx_ppu_access_put(struct mv88e6xxx_priv_state *ps) -{ - /* Schedule a timer to re-enable the PHY polling unit. */ - mod_timer(&ps->ppu_timer, jiffies + msecs_to_jiffies(10)); - mutex_unlock(&ps->ppu_mutex); -} - -void mv88e6xxx_ppu_state_init(struct mv88e6xxx_priv_state *ps) -{ - mutex_init(&ps->ppu_mutex); - INIT_WORK(&ps->ppu_work, mv88e6xxx_ppu_reenable_work); - init_timer(&ps->ppu_timer); - ps->ppu_timer.data = (unsigned long)ps; - ps->ppu_timer.function = mv88e6xxx_ppu_reenable_timer; -} - -static int mv88e6xxx_phy_read_ppu(struct mv88e6xxx_priv_state *ps, int addr, - int regnum) -{ - int ret; - - ret = mv88e6xxx_ppu_access_get(ps); - if (ret >= 0) { - ret = _mv88e6xxx_reg_read(ps, addr, regnum); - mv88e6xxx_ppu_access_put(ps); - } - - return ret; -} - -static int mv88e6xxx_phy_write_ppu(struct mv88e6xxx_priv_state *ps, int addr, - int regnum, u16 val) -{ - int ret; - - ret = mv88e6xxx_ppu_access_get(ps); - if (ret >= 0) { - ret = _mv88e6xxx_reg_write(ps, addr, regnum, val); - mv88e6xxx_ppu_access_put(ps); - } - - return ret; -} - -static bool mv88e6xxx_6065_family(struct mv88e6xxx_priv_state *ps) -{ - return ps->info->family == MV88E6XXX_FAMILY_6065; -} - -static bool mv88e6xxx_6095_family(struct mv88e6xxx_priv_state *ps) -{ - return ps->info->family == MV88E6XXX_FAMILY_6095; -} - -static bool mv88e6xxx_6097_family(struct mv88e6xxx_priv_state *ps) -{ - return ps->info->family == MV88E6XXX_FAMILY_6097; -} - -static bool mv88e6xxx_6165_family(struct mv88e6xxx_priv_state *ps) -{ - return ps->info->family == MV88E6XXX_FAMILY_6165; -} - -static bool mv88e6xxx_6185_family(struct mv88e6xxx_priv_state *ps) -{ - return ps->info->family == MV88E6XXX_FAMILY_6185; -} - -static bool mv88e6xxx_6320_family(struct mv88e6xxx_priv_state *ps) -{ - return ps->info->family == MV88E6XXX_FAMILY_6320; -} - -static bool mv88e6xxx_6351_family(struct mv88e6xxx_priv_state *ps) -{ - return ps->info->family == MV88E6XXX_FAMILY_6351; -} - -static bool mv88e6xxx_6352_family(struct mv88e6xxx_priv_state *ps) -{ - return ps->info->family == MV88E6XXX_FAMILY_6352; -} - -static unsigned int mv88e6xxx_num_databases(struct mv88e6xxx_priv_state *ps) -{ - return ps->info->num_databases; -} - -static bool mv88e6xxx_has_fid_reg(struct mv88e6xxx_priv_state *ps) -{ - /* Does the device have dedicated FID registers for ATU and VTU ops? */ - if (mv88e6xxx_6097_family(ps) || mv88e6xxx_6165_family(ps) || - mv88e6xxx_6351_family(ps) || mv88e6xxx_6352_family(ps)) - return true; - - return false; -} - -/* 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_priv_state *ps = ds_to_priv(ds); - u32 reg; - int ret; - - if (!phy_is_pseudo_fixed_link(phydev)) - return; - - mutex_lock(&ps->smi_mutex); - - ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_PCS_CTRL); - if (ret < 0) - goto out; - - reg = ret & ~(PORT_PCS_CTRL_LINK_UP | - PORT_PCS_CTRL_FORCE_LINK | - PORT_PCS_CTRL_DUPLEX_FULL | - PORT_PCS_CTRL_FORCE_DUPLEX | - PORT_PCS_CTRL_UNFORCED); - - reg |= PORT_PCS_CTRL_FORCE_LINK; - if (phydev->link) - reg |= PORT_PCS_CTRL_LINK_UP; - - if (mv88e6xxx_6065_family(ps) && phydev->speed > SPEED_100) - goto out; - - switch (phydev->speed) { - case SPEED_1000: - reg |= PORT_PCS_CTRL_1000; - break; - case SPEED_100: - reg |= PORT_PCS_CTRL_100; - break; - case SPEED_10: - reg |= PORT_PCS_CTRL_10; - break; - default: - pr_info("Unknown speed"); - goto out; - } - - reg |= PORT_PCS_CTRL_FORCE_DUPLEX; - if (phydev->duplex == DUPLEX_FULL) - reg |= PORT_PCS_CTRL_DUPLEX_FULL; - - if ((mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps)) && - (port >= ps->info->num_ports - 2)) { - if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) - reg |= PORT_PCS_CTRL_RGMII_DELAY_RXCLK; - if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) - reg |= PORT_PCS_CTRL_RGMII_DELAY_TXCLK; - if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) - reg |= (PORT_PCS_CTRL_RGMII_DELAY_RXCLK | - PORT_PCS_CTRL_RGMII_DELAY_TXCLK); - } - _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_PCS_CTRL, reg); - -out: - mutex_unlock(&ps->smi_mutex); -} - -static int _mv88e6xxx_stats_wait(struct mv88e6xxx_priv_state *ps) -{ - int ret; - int i; - - for (i = 0; i < 10; i++) { - ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_STATS_OP); - if ((ret & GLOBAL_STATS_OP_BUSY) == 0) - return 0; - } - - return -ETIMEDOUT; -} - -static int _mv88e6xxx_stats_snapshot(struct mv88e6xxx_priv_state *ps, - int port) -{ - int ret; - - if (mv88e6xxx_6320_family(ps) || mv88e6xxx_6352_family(ps)) - port = (port + 1) << 5; - - /* Snapshot the hardware statistics counters for this port. */ - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_STATS_OP, - GLOBAL_STATS_OP_CAPTURE_PORT | - GLOBAL_STATS_OP_HIST_RX_TX | port); - if (ret < 0) - return ret; - - /* Wait for the snapshotting to complete. */ - ret = _mv88e6xxx_stats_wait(ps); - if (ret < 0) - return ret; - - return 0; -} - -static void _mv88e6xxx_stats_read(struct mv88e6xxx_priv_state *ps, - int stat, u32 *val) -{ - u32 _val; - int ret; - - *val = 0; - - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_STATS_OP, - GLOBAL_STATS_OP_READ_CAPTURED | - GLOBAL_STATS_OP_HIST_RX_TX | stat); - if (ret < 0) - return; - - ret = _mv88e6xxx_stats_wait(ps); - if (ret < 0) - return; - - ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_STATS_COUNTER_32); - if (ret < 0) - return; - - _val = ret << 16; - - ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_STATS_COUNTER_01); - if (ret < 0) - return; - - *val = _val | ret; -} - -static struct mv88e6xxx_hw_stat mv88e6xxx_hw_stats[] = { - { "in_good_octets", 8, 0x00, BANK0, }, - { "in_bad_octets", 4, 0x02, BANK0, }, - { "in_unicast", 4, 0x04, BANK0, }, - { "in_broadcasts", 4, 0x06, BANK0, }, - { "in_multicasts", 4, 0x07, BANK0, }, - { "in_pause", 4, 0x16, BANK0, }, - { "in_undersize", 4, 0x18, BANK0, }, - { "in_fragments", 4, 0x19, BANK0, }, - { "in_oversize", 4, 0x1a, BANK0, }, - { "in_jabber", 4, 0x1b, BANK0, }, - { "in_rx_error", 4, 0x1c, BANK0, }, - { "in_fcs_error", 4, 0x1d, BANK0, }, - { "out_octets", 8, 0x0e, BANK0, }, - { "out_unicast", 4, 0x10, BANK0, }, - { "out_broadcasts", 4, 0x13, BANK0, }, - { "out_multicasts", 4, 0x12, BANK0, }, - { "out_pause", 4, 0x15, BANK0, }, - { "excessive", 4, 0x11, BANK0, }, - { "collisions", 4, 0x1e, BANK0, }, - { "deferred", 4, 0x05, BANK0, }, - { "single", 4, 0x14, BANK0, }, - { "multiple", 4, 0x17, BANK0, }, - { "out_fcs_error", 4, 0x03, BANK0, }, - { "late", 4, 0x1f, BANK0, }, - { "hist_64bytes", 4, 0x08, BANK0, }, - { "hist_65_127bytes", 4, 0x09, BANK0, }, - { "hist_128_255bytes", 4, 0x0a, BANK0, }, - { "hist_256_511bytes", 4, 0x0b, BANK0, }, - { "hist_512_1023bytes", 4, 0x0c, BANK0, }, - { "hist_1024_max_bytes", 4, 0x0d, BANK0, }, - { "sw_in_discards", 4, 0x10, PORT, }, - { "sw_in_filtered", 2, 0x12, PORT, }, - { "sw_out_filtered", 2, 0x13, PORT, }, - { "in_discards", 4, 0x00 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "in_filtered", 4, 0x01 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "in_accepted", 4, 0x02 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "in_bad_accepted", 4, 0x03 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "in_good_avb_class_a", 4, 0x04 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "in_good_avb_class_b", 4, 0x05 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "in_bad_avb_class_a", 4, 0x06 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "in_bad_avb_class_b", 4, 0x07 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "tcam_counter_0", 4, 0x08 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "tcam_counter_1", 4, 0x09 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "tcam_counter_2", 4, 0x0a | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "tcam_counter_3", 4, 0x0b | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "in_da_unknown", 4, 0x0e | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "in_management", 4, 0x0f | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "out_queue_0", 4, 0x10 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "out_queue_1", 4, 0x11 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "out_queue_2", 4, 0x12 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "out_queue_3", 4, 0x13 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "out_queue_4", 4, 0x14 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "out_queue_5", 4, 0x15 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "out_queue_6", 4, 0x16 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "out_queue_7", 4, 0x17 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "out_cut_through", 4, 0x18 | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "out_octets_a", 4, 0x1a | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "out_octets_b", 4, 0x1b | GLOBAL_STATS_OP_BANK_1, BANK1, }, - { "out_management", 4, 0x1f | GLOBAL_STATS_OP_BANK_1, BANK1, }, -}; - -static bool mv88e6xxx_has_stat(struct mv88e6xxx_priv_state *ps, - struct mv88e6xxx_hw_stat *stat) -{ - switch (stat->type) { - case BANK0: - return true; - case BANK1: - return mv88e6xxx_6320_family(ps); - case PORT: - return mv88e6xxx_6095_family(ps) || - mv88e6xxx_6185_family(ps) || - mv88e6xxx_6097_family(ps) || - mv88e6xxx_6165_family(ps) || - mv88e6xxx_6351_family(ps) || - mv88e6xxx_6352_family(ps); - } - return false; -} - -static uint64_t _mv88e6xxx_get_ethtool_stat(struct mv88e6xxx_priv_state *ps, - struct mv88e6xxx_hw_stat *s, - int port) -{ - u32 low; - u32 high = 0; - int ret; - u64 value; - - switch (s->type) { - case PORT: - ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), s->reg); - if (ret < 0) - return UINT64_MAX; - - low = ret; - if (s->sizeof_stat == 4) { - ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), - s->reg + 1); - if (ret < 0) - return UINT64_MAX; - high = ret; - } - break; - case BANK0: - case BANK1: - _mv88e6xxx_stats_read(ps, s->reg, &low); - if (s->sizeof_stat == 8) - _mv88e6xxx_stats_read(ps, s->reg + 1, &high); - } - value = (((u64)high) << 16) | low; - return value; -} - -static void mv88e6xxx_get_strings(struct dsa_switch *ds, int port, - uint8_t *data) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - 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 (mv88e6xxx_has_stat(ps, stat)) { - memcpy(data + j * ETH_GSTRING_LEN, stat->string, - ETH_GSTRING_LEN); - j++; - } - } -} - -static int mv88e6xxx_get_sset_count(struct dsa_switch *ds) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - 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 (mv88e6xxx_has_stat(ps, stat)) - j++; - } - return j; -} - -static void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds, int port, - uint64_t *data) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - struct mv88e6xxx_hw_stat *stat; - int ret; - int i, j; - - mutex_lock(&ps->smi_mutex); - - ret = _mv88e6xxx_stats_snapshot(ps, port); - if (ret < 0) { - mutex_unlock(&ps->smi_mutex); - return; - } - for (i = 0, j = 0; i < ARRAY_SIZE(mv88e6xxx_hw_stats); i++) { - stat = &mv88e6xxx_hw_stats[i]; - if (mv88e6xxx_has_stat(ps, stat)) { - data[j] = _mv88e6xxx_get_ethtool_stat(ps, stat, port); - j++; - } - } - - mutex_unlock(&ps->smi_mutex); -} - -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_priv_state *ps = ds_to_priv(ds); - u16 *p = _p; - int i; - - regs->version = 0; - - memset(p, 0xff, 32 * sizeof(u16)); - - mutex_lock(&ps->smi_mutex); - - for (i = 0; i < 32; i++) { - int ret; - - ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), i); - if (ret >= 0) - p[i] = ret; - } - - mutex_unlock(&ps->smi_mutex); -} - -static int _mv88e6xxx_wait(struct mv88e6xxx_priv_state *ps, int reg, int offset, - u16 mask) -{ - unsigned long timeout = jiffies + HZ / 10; - - while (time_before(jiffies, timeout)) { - int ret; - - ret = _mv88e6xxx_reg_read(ps, reg, offset); - if (ret < 0) - return ret; - if (!(ret & mask)) - return 0; - - usleep_range(1000, 2000); - } - return -ETIMEDOUT; -} - -static int mv88e6xxx_wait(struct mv88e6xxx_priv_state *ps, int reg, - int offset, u16 mask) -{ - int ret; - - mutex_lock(&ps->smi_mutex); - ret = _mv88e6xxx_wait(ps, reg, offset, mask); - mutex_unlock(&ps->smi_mutex); - - return ret; -} - -static int _mv88e6xxx_phy_wait(struct mv88e6xxx_priv_state *ps) -{ - return _mv88e6xxx_wait(ps, REG_GLOBAL2, GLOBAL2_SMI_OP, - GLOBAL2_SMI_OP_BUSY); -} - -static int mv88e6xxx_eeprom_load_wait(struct dsa_switch *ds) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - - return mv88e6xxx_wait(ps, REG_GLOBAL2, GLOBAL2_EEPROM_OP, - GLOBAL2_EEPROM_OP_LOAD); -} - -static int mv88e6xxx_eeprom_busy_wait(struct dsa_switch *ds) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - - return mv88e6xxx_wait(ps, REG_GLOBAL2, GLOBAL2_EEPROM_OP, - GLOBAL2_EEPROM_OP_BUSY); -} - -static int mv88e6xxx_read_eeprom_word(struct dsa_switch *ds, int addr) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - int ret; - - mutex_lock(&ps->eeprom_mutex); - - ret = mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_EEPROM_OP, - GLOBAL2_EEPROM_OP_READ | - (addr & GLOBAL2_EEPROM_OP_ADDR_MASK)); - if (ret < 0) - goto error; - - ret = mv88e6xxx_eeprom_busy_wait(ds); - if (ret < 0) - goto error; - - ret = mv88e6xxx_reg_read(ps, REG_GLOBAL2, GLOBAL2_EEPROM_DATA); -error: - mutex_unlock(&ps->eeprom_mutex); - return ret; -} - -static int mv88e6xxx_get_eeprom_len(struct dsa_switch *ds) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - - if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_EEPROM)) - return ps->eeprom_len; - - return 0; -} - -static int mv88e6xxx_get_eeprom(struct dsa_switch *ds, - struct ethtool_eeprom *eeprom, u8 *data) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - int offset; - int len; - int ret; - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_EEPROM)) - return -EOPNOTSUPP; - - offset = eeprom->offset; - len = eeprom->len; - eeprom->len = 0; - - eeprom->magic = 0xc3ec4951; - - ret = mv88e6xxx_eeprom_load_wait(ds); - if (ret < 0) - return ret; - - if (offset & 1) { - int word; - - word = mv88e6xxx_read_eeprom_word(ds, offset >> 1); - if (word < 0) - return word; - - *data++ = (word >> 8) & 0xff; - - offset++; - len--; - eeprom->len++; - } - - while (len >= 2) { - int word; - - word = mv88e6xxx_read_eeprom_word(ds, offset >> 1); - if (word < 0) - return word; - - *data++ = word & 0xff; - *data++ = (word >> 8) & 0xff; - - offset += 2; - len -= 2; - eeprom->len += 2; - } - - if (len) { - int word; - - word = mv88e6xxx_read_eeprom_word(ds, offset >> 1); - if (word < 0) - return word; - - *data++ = word & 0xff; - - offset++; - len--; - eeprom->len++; - } - - return 0; -} - -static int mv88e6xxx_eeprom_is_readonly(struct dsa_switch *ds) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - int ret; - - ret = mv88e6xxx_reg_read(ps, REG_GLOBAL2, GLOBAL2_EEPROM_OP); - if (ret < 0) - return ret; - - if (!(ret & GLOBAL2_EEPROM_OP_WRITE_EN)) - return -EROFS; - - return 0; -} - -static int mv88e6xxx_write_eeprom_word(struct dsa_switch *ds, int addr, - u16 data) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - int ret; - - mutex_lock(&ps->eeprom_mutex); - - ret = mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_EEPROM_DATA, data); - if (ret < 0) - goto error; - - ret = mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_EEPROM_OP, - GLOBAL2_EEPROM_OP_WRITE | - (addr & GLOBAL2_EEPROM_OP_ADDR_MASK)); - if (ret < 0) - goto error; - - ret = mv88e6xxx_eeprom_busy_wait(ds); -error: - mutex_unlock(&ps->eeprom_mutex); - return ret; -} - -static int mv88e6xxx_set_eeprom(struct dsa_switch *ds, - struct ethtool_eeprom *eeprom, u8 *data) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - int offset; - int ret; - int len; - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_EEPROM)) - return -EOPNOTSUPP; - - if (eeprom->magic != 0xc3ec4951) - return -EINVAL; - - ret = mv88e6xxx_eeprom_is_readonly(ds); - if (ret) - return ret; - - offset = eeprom->offset; - len = eeprom->len; - eeprom->len = 0; - - ret = mv88e6xxx_eeprom_load_wait(ds); - if (ret < 0) - return ret; - - if (offset & 1) { - int word; - - word = mv88e6xxx_read_eeprom_word(ds, offset >> 1); - if (word < 0) - return word; - - word = (*data++ << 8) | (word & 0xff); - - ret = mv88e6xxx_write_eeprom_word(ds, offset >> 1, word); - if (ret < 0) - return ret; - - offset++; - len--; - eeprom->len++; - } - - while (len >= 2) { - int word; - - word = *data++; - word |= *data++ << 8; - - ret = mv88e6xxx_write_eeprom_word(ds, offset >> 1, word); - if (ret < 0) - return ret; - - offset += 2; - len -= 2; - eeprom->len += 2; - } - - if (len) { - int word; - - word = mv88e6xxx_read_eeprom_word(ds, offset >> 1); - if (word < 0) - return word; - - word = (word & 0xff00) | *data++; - - ret = mv88e6xxx_write_eeprom_word(ds, offset >> 1, word); - if (ret < 0) - return ret; - - offset++; - len--; - eeprom->len++; - } - - return 0; -} - -static int _mv88e6xxx_atu_wait(struct mv88e6xxx_priv_state *ps) -{ - return _mv88e6xxx_wait(ps, REG_GLOBAL, GLOBAL_ATU_OP, - GLOBAL_ATU_OP_BUSY); -} - -static int _mv88e6xxx_phy_read_indirect(struct mv88e6xxx_priv_state *ps, - int addr, int regnum) -{ - int ret; - - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_SMI_OP, - GLOBAL2_SMI_OP_22_READ | (addr << 5) | - regnum); - if (ret < 0) - return ret; - - ret = _mv88e6xxx_phy_wait(ps); - if (ret < 0) - return ret; - - ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL2, GLOBAL2_SMI_DATA); - - return ret; -} - -static int _mv88e6xxx_phy_write_indirect(struct mv88e6xxx_priv_state *ps, - int addr, int regnum, u16 val) -{ - int ret; - - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_SMI_DATA, val); - if (ret < 0) - return ret; - - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_SMI_OP, - GLOBAL2_SMI_OP_22_WRITE | (addr << 5) | - regnum); - - return _mv88e6xxx_phy_wait(ps); -} - -static 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; - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_EEE)) - return -EOPNOTSUPP; - - mutex_lock(&ps->smi_mutex); - - reg = _mv88e6xxx_phy_read_indirect(ps, port, 16); - if (reg < 0) - goto out; - - e->eee_enabled = !!(reg & 0x0200); - e->tx_lpi_enabled = !!(reg & 0x0100); - - reg = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_STATUS); - if (reg < 0) - goto out; - - e->eee_active = !!(reg & PORT_STATUS_EEE); - reg = 0; - -out: - mutex_unlock(&ps->smi_mutex); - return reg; -} - -static 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; - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_EEE)) - return -EOPNOTSUPP; - - mutex_lock(&ps->smi_mutex); - - ret = _mv88e6xxx_phy_read_indirect(ps, 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(ps, port, 16, reg); -out: - mutex_unlock(&ps->smi_mutex); - - return ret; -} - -static int _mv88e6xxx_atu_cmd(struct mv88e6xxx_priv_state *ps, u16 fid, u16 cmd) -{ - int ret; - - if (mv88e6xxx_has_fid_reg(ps)) { - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_ATU_FID, fid); - if (ret < 0) - return ret; - } else if (mv88e6xxx_num_databases(ps) == 256) { - /* ATU DBNum[7:4] are located in ATU Control 15:12 */ - ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_ATU_CONTROL); - if (ret < 0) - return ret; - - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_ATU_CONTROL, - (ret & 0xfff) | - ((fid << 8) & 0xf000)); - if (ret < 0) - return ret; - - /* ATU DBNum[3:0] are located in ATU Operation 3:0 */ - cmd |= fid & 0xf; - } - - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_ATU_OP, cmd); - if (ret < 0) - return ret; - - return _mv88e6xxx_atu_wait(ps); -} - -static int _mv88e6xxx_atu_data_write(struct mv88e6xxx_priv_state *ps, - struct mv88e6xxx_atu_entry *entry) -{ - u16 data = entry->state & GLOBAL_ATU_DATA_STATE_MASK; - - if (entry->state != GLOBAL_ATU_DATA_STATE_UNUSED) { - unsigned int mask, shift; - - if (entry->trunk) { - data |= GLOBAL_ATU_DATA_TRUNK; - mask = GLOBAL_ATU_DATA_TRUNK_ID_MASK; - shift = GLOBAL_ATU_DATA_TRUNK_ID_SHIFT; - } else { - mask = GLOBAL_ATU_DATA_PORT_VECTOR_MASK; - shift = GLOBAL_ATU_DATA_PORT_VECTOR_SHIFT; - } - - data |= (entry->portv_trunkid << shift) & mask; - } - - return _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_ATU_DATA, data); -} - -static int _mv88e6xxx_atu_flush_move(struct mv88e6xxx_priv_state *ps, - struct mv88e6xxx_atu_entry *entry, - bool static_too) -{ - int op; - int err; - - err = _mv88e6xxx_atu_wait(ps); - if (err) - return err; - - err = _mv88e6xxx_atu_data_write(ps, entry); - if (err) - return err; - - if (entry->fid) { - op = static_too ? GLOBAL_ATU_OP_FLUSH_MOVE_ALL_DB : - GLOBAL_ATU_OP_FLUSH_MOVE_NON_STATIC_DB; - } else { - op = static_too ? GLOBAL_ATU_OP_FLUSH_MOVE_ALL : - GLOBAL_ATU_OP_FLUSH_MOVE_NON_STATIC; - } - - return _mv88e6xxx_atu_cmd(ps, entry->fid, op); -} - -static int _mv88e6xxx_atu_flush(struct mv88e6xxx_priv_state *ps, - u16 fid, bool static_too) -{ - struct mv88e6xxx_atu_entry entry = { - .fid = fid, - .state = 0, /* EntryState bits must be 0 */ - }; - - return _mv88e6xxx_atu_flush_move(ps, &entry, static_too); -} - -static int _mv88e6xxx_atu_move(struct mv88e6xxx_priv_state *ps, u16 fid, - int from_port, int to_port, bool static_too) -{ - struct mv88e6xxx_atu_entry entry = { - .trunk = false, - .fid = fid, - }; - - /* EntryState bits must be 0xF */ - entry.state = GLOBAL_ATU_DATA_STATE_MASK; - - /* ToPort and FromPort are respectively in PortVec bits 7:4 and 3:0 */ - entry.portv_trunkid = (to_port & 0x0f) << 4; - entry.portv_trunkid |= from_port & 0x0f; - - return _mv88e6xxx_atu_flush_move(ps, &entry, static_too); -} - -static int _mv88e6xxx_atu_remove(struct mv88e6xxx_priv_state *ps, u16 fid, - int port, bool static_too) -{ - /* Destination port 0xF means remove the entries */ - return _mv88e6xxx_atu_move(ps, fid, port, 0x0f, static_too); -} - -static const char * const mv88e6xxx_port_state_names[] = { - [PORT_CONTROL_STATE_DISABLED] = "Disabled", - [PORT_CONTROL_STATE_BLOCKING] = "Blocking/Listening", - [PORT_CONTROL_STATE_LEARNING] = "Learning", - [PORT_CONTROL_STATE_FORWARDING] = "Forwarding", -}; - -static int _mv88e6xxx_port_state(struct mv88e6xxx_priv_state *ps, int port, - u8 state) -{ - struct dsa_switch *ds = ps->ds; - int reg, ret = 0; - u8 oldstate; - - reg = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_CONTROL); - if (reg < 0) - return reg; - - 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 == PORT_CONTROL_STATE_LEARNING || - oldstate == PORT_CONTROL_STATE_FORWARDING) - && (state == PORT_CONTROL_STATE_DISABLED || - state == PORT_CONTROL_STATE_BLOCKING)) { - ret = _mv88e6xxx_atu_remove(ps, 0, port, false); - if (ret) - return ret; - } - - reg = (reg & ~PORT_CONTROL_STATE_MASK) | state; - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_CONTROL, - reg); - if (ret) - return ret; - - netdev_dbg(ds->ports[port], "PortState %s (was %s)\n", - mv88e6xxx_port_state_names[state], - mv88e6xxx_port_state_names[oldstate]); - } - - return ret; -} - -static int _mv88e6xxx_port_based_vlan_map(struct mv88e6xxx_priv_state *ps, - int port) -{ - struct net_device *bridge = ps->ports[port].bridge_dev; - const u16 mask = (1 << ps->info->num_ports) - 1; - struct dsa_switch *ds = ps->ds; - u16 output_ports = 0; - int reg; - int i; - - /* allow CPU port or DSA link(s) to send frames to every port */ - if (dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port)) { - output_ports = mask; - } else { - for (i = 0; i < ps->info->num_ports; ++i) { - /* allow sending frames to every group member */ - if (bridge && ps->ports[i].bridge_dev == bridge) - output_ports |= BIT(i); - - /* allow sending frames to CPU port and DSA link(s) */ - if (dsa_is_cpu_port(ds, i) || dsa_is_dsa_port(ds, i)) - output_ports |= BIT(i); - } - } - - /* prevent frames from going back out of the port they came in on */ - output_ports &= ~BIT(port); - - reg = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_BASE_VLAN); - if (reg < 0) - return reg; - - reg &= ~mask; - reg |= output_ports & mask; - - return _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_BASE_VLAN, reg); -} - -static void mv88e6xxx_port_stp_state_set(struct dsa_switch *ds, int port, - u8 state) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - int stp_state; - int err; - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_PORTSTATE)) - return; - - switch (state) { - case BR_STATE_DISABLED: - stp_state = PORT_CONTROL_STATE_DISABLED; - break; - case BR_STATE_BLOCKING: - case BR_STATE_LISTENING: - stp_state = PORT_CONTROL_STATE_BLOCKING; - break; - case BR_STATE_LEARNING: - stp_state = PORT_CONTROL_STATE_LEARNING; - break; - case BR_STATE_FORWARDING: - default: - stp_state = PORT_CONTROL_STATE_FORWARDING; - break; - } - - mutex_lock(&ps->smi_mutex); - err = _mv88e6xxx_port_state(ps, port, stp_state); - mutex_unlock(&ps->smi_mutex); - - if (err) - netdev_err(ds->ports[port], "failed to update state to %s\n", - mv88e6xxx_port_state_names[stp_state]); -} - -static int _mv88e6xxx_port_pvid(struct mv88e6xxx_priv_state *ps, int port, - u16 *new, u16 *old) -{ - struct dsa_switch *ds = ps->ds; - u16 pvid; - int ret; - - ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_DEFAULT_VLAN); - if (ret < 0) - return ret; - - pvid = ret & PORT_DEFAULT_VLAN_MASK; - - if (new) { - ret &= ~PORT_DEFAULT_VLAN_MASK; - ret |= *new & PORT_DEFAULT_VLAN_MASK; - - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), - PORT_DEFAULT_VLAN, ret); - if (ret < 0) - return ret; - - netdev_dbg(ds->ports[port], "DefaultVID %d (was %d)\n", *new, - pvid); - } - - if (old) - *old = pvid; - - return 0; -} - -static int _mv88e6xxx_port_pvid_get(struct mv88e6xxx_priv_state *ps, - int port, u16 *pvid) -{ - return _mv88e6xxx_port_pvid(ps, port, NULL, pvid); -} - -static int _mv88e6xxx_port_pvid_set(struct mv88e6xxx_priv_state *ps, - int port, u16 pvid) -{ - return _mv88e6xxx_port_pvid(ps, port, &pvid, NULL); -} - -static int _mv88e6xxx_vtu_wait(struct mv88e6xxx_priv_state *ps) -{ - return _mv88e6xxx_wait(ps, REG_GLOBAL, GLOBAL_VTU_OP, - GLOBAL_VTU_OP_BUSY); -} - -static int _mv88e6xxx_vtu_cmd(struct mv88e6xxx_priv_state *ps, u16 op) -{ - int ret; - - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_VTU_OP, op); - if (ret < 0) - return ret; - - return _mv88e6xxx_vtu_wait(ps); -} - -static int _mv88e6xxx_vtu_stu_flush(struct mv88e6xxx_priv_state *ps) -{ - int ret; - - ret = _mv88e6xxx_vtu_wait(ps); - if (ret < 0) - return ret; - - return _mv88e6xxx_vtu_cmd(ps, GLOBAL_VTU_OP_FLUSH_ALL); -} - -static int _mv88e6xxx_vtu_stu_data_read(struct mv88e6xxx_priv_state *ps, - struct mv88e6xxx_vtu_stu_entry *entry, - unsigned int nibble_offset) -{ - u16 regs[3]; - int i; - int ret; - - for (i = 0; i < 3; ++i) { - ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, - GLOBAL_VTU_DATA_0_3 + i); - if (ret < 0) - return ret; - - regs[i] = ret; - } - - for (i = 0; i < ps->info->num_ports; ++i) { - unsigned int shift = (i % 4) * 4 + nibble_offset; - u16 reg = regs[i / 4]; - - entry->data[i] = (reg >> shift) & GLOBAL_VTU_STU_DATA_MASK; - } - - return 0; -} - -static int mv88e6xxx_vtu_data_read(struct mv88e6xxx_priv_state *ps, - struct mv88e6xxx_vtu_stu_entry *entry) -{ - return _mv88e6xxx_vtu_stu_data_read(ps, entry, 0); -} - -static int mv88e6xxx_stu_data_read(struct mv88e6xxx_priv_state *ps, - struct mv88e6xxx_vtu_stu_entry *entry) -{ - return _mv88e6xxx_vtu_stu_data_read(ps, entry, 2); -} - -static int _mv88e6xxx_vtu_stu_data_write(struct mv88e6xxx_priv_state *ps, - struct mv88e6xxx_vtu_stu_entry *entry, - unsigned int nibble_offset) -{ - u16 regs[3] = { 0 }; - int i; - int ret; - - for (i = 0; i < ps->info->num_ports; ++i) { - unsigned int shift = (i % 4) * 4 + nibble_offset; - u8 data = entry->data[i]; - - regs[i / 4] |= (data & GLOBAL_VTU_STU_DATA_MASK) << shift; - } - - for (i = 0; i < 3; ++i) { - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, - GLOBAL_VTU_DATA_0_3 + i, regs[i]); - if (ret < 0) - return ret; - } - - return 0; -} - -static int mv88e6xxx_vtu_data_write(struct mv88e6xxx_priv_state *ps, - struct mv88e6xxx_vtu_stu_entry *entry) -{ - return _mv88e6xxx_vtu_stu_data_write(ps, entry, 0); -} - -static int mv88e6xxx_stu_data_write(struct mv88e6xxx_priv_state *ps, - struct mv88e6xxx_vtu_stu_entry *entry) -{ - return _mv88e6xxx_vtu_stu_data_write(ps, entry, 2); -} - -static int _mv88e6xxx_vtu_vid_write(struct mv88e6xxx_priv_state *ps, u16 vid) -{ - return _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_VTU_VID, - vid & GLOBAL_VTU_VID_MASK); -} - -static int _mv88e6xxx_vtu_getnext(struct mv88e6xxx_priv_state *ps, - struct mv88e6xxx_vtu_stu_entry *entry) -{ - struct mv88e6xxx_vtu_stu_entry next = { 0 }; - int ret; - - ret = _mv88e6xxx_vtu_wait(ps); - if (ret < 0) - return ret; - - ret = _mv88e6xxx_vtu_cmd(ps, GLOBAL_VTU_OP_VTU_GET_NEXT); - if (ret < 0) - return ret; - - ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_VTU_VID); - if (ret < 0) - return ret; - - next.vid = ret & GLOBAL_VTU_VID_MASK; - next.valid = !!(ret & GLOBAL_VTU_VID_VALID); - - if (next.valid) { - ret = mv88e6xxx_vtu_data_read(ps, &next); - if (ret < 0) - return ret; - - if (mv88e6xxx_has_fid_reg(ps)) { - ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, - GLOBAL_VTU_FID); - if (ret < 0) - return ret; - - next.fid = ret & GLOBAL_VTU_FID_MASK; - } else if (mv88e6xxx_num_databases(ps) == 256) { - /* VTU DBNum[7:4] are located in VTU Operation 11:8, and - * VTU DBNum[3:0] are located in VTU Operation 3:0 - */ - ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, - GLOBAL_VTU_OP); - if (ret < 0) - return ret; - - next.fid = (ret & 0xf00) >> 4; - next.fid |= ret & 0xf; - } - - if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_STU)) { - ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, - GLOBAL_VTU_SID); - if (ret < 0) - return ret; - - next.sid = ret & GLOBAL_VTU_SID_MASK; - } - } - - *entry = next; - return 0; -} - -static int mv88e6xxx_port_vlan_dump(struct dsa_switch *ds, int port, - struct switchdev_obj_port_vlan *vlan, - int (*cb)(struct switchdev_obj *obj)) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - struct mv88e6xxx_vtu_stu_entry next; - u16 pvid; - int err; - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_VTU)) - return -EOPNOTSUPP; - - mutex_lock(&ps->smi_mutex); - - err = _mv88e6xxx_port_pvid_get(ps, port, &pvid); - if (err) - goto unlock; - - err = _mv88e6xxx_vtu_vid_write(ps, GLOBAL_VTU_VID_MASK); - if (err) - goto unlock; - - do { - err = _mv88e6xxx_vtu_getnext(ps, &next); - if (err) - break; - - if (!next.valid) - break; - - if (next.data[port] == GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER) - continue; - - /* reinit and dump this VLAN obj */ - vlan->vid_begin = vlan->vid_end = next.vid; - vlan->flags = 0; - - if (next.data[port] == GLOBAL_VTU_DATA_MEMBER_TAG_UNTAGGED) - vlan->flags |= BRIDGE_VLAN_INFO_UNTAGGED; - - if (next.vid == pvid) - vlan->flags |= BRIDGE_VLAN_INFO_PVID; - - err = cb(&vlan->obj); - if (err) - break; - } while (next.vid < GLOBAL_VTU_VID_MASK); - -unlock: - mutex_unlock(&ps->smi_mutex); - - return err; -} - -static int _mv88e6xxx_vtu_loadpurge(struct mv88e6xxx_priv_state *ps, - struct mv88e6xxx_vtu_stu_entry *entry) -{ - u16 op = GLOBAL_VTU_OP_VTU_LOAD_PURGE; - u16 reg = 0; - int ret; - - ret = _mv88e6xxx_vtu_wait(ps); - if (ret < 0) - return ret; - - if (!entry->valid) - goto loadpurge; - - /* Write port member tags */ - ret = mv88e6xxx_vtu_data_write(ps, entry); - if (ret < 0) - return ret; - - if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_STU)) { - reg = entry->sid & GLOBAL_VTU_SID_MASK; - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_VTU_SID, reg); - if (ret < 0) - return ret; - } - - if (mv88e6xxx_has_fid_reg(ps)) { - reg = entry->fid & GLOBAL_VTU_FID_MASK; - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_VTU_FID, reg); - if (ret < 0) - return ret; - } else if (mv88e6xxx_num_databases(ps) == 256) { - /* VTU DBNum[7:4] are located in VTU Operation 11:8, and - * VTU DBNum[3:0] are located in VTU Operation 3:0 - */ - op |= (entry->fid & 0xf0) << 8; - op |= entry->fid & 0xf; - } - - reg = GLOBAL_VTU_VID_VALID; -loadpurge: - reg |= entry->vid & GLOBAL_VTU_VID_MASK; - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_VTU_VID, reg); - if (ret < 0) - return ret; - - return _mv88e6xxx_vtu_cmd(ps, op); -} - -static int _mv88e6xxx_stu_getnext(struct mv88e6xxx_priv_state *ps, u8 sid, - struct mv88e6xxx_vtu_stu_entry *entry) -{ - struct mv88e6xxx_vtu_stu_entry next = { 0 }; - int ret; - - ret = _mv88e6xxx_vtu_wait(ps); - if (ret < 0) - return ret; - - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_VTU_SID, - sid & GLOBAL_VTU_SID_MASK); - if (ret < 0) - return ret; - - ret = _mv88e6xxx_vtu_cmd(ps, GLOBAL_VTU_OP_STU_GET_NEXT); - if (ret < 0) - return ret; - - ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_VTU_SID); - if (ret < 0) - return ret; - - next.sid = ret & GLOBAL_VTU_SID_MASK; - - ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_VTU_VID); - if (ret < 0) - return ret; - - next.valid = !!(ret & GLOBAL_VTU_VID_VALID); - - if (next.valid) { - ret = mv88e6xxx_stu_data_read(ps, &next); - if (ret < 0) - return ret; - } - - *entry = next; - return 0; -} - -static int _mv88e6xxx_stu_loadpurge(struct mv88e6xxx_priv_state *ps, - struct mv88e6xxx_vtu_stu_entry *entry) -{ - u16 reg = 0; - int ret; - - ret = _mv88e6xxx_vtu_wait(ps); - if (ret < 0) - return ret; - - if (!entry->valid) - goto loadpurge; - - /* Write port states */ - ret = mv88e6xxx_stu_data_write(ps, entry); - if (ret < 0) - return ret; - - reg = GLOBAL_VTU_VID_VALID; -loadpurge: - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_VTU_VID, reg); - if (ret < 0) - return ret; - - reg = entry->sid & GLOBAL_VTU_SID_MASK; - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_VTU_SID, reg); - if (ret < 0) - return ret; - - return _mv88e6xxx_vtu_cmd(ps, GLOBAL_VTU_OP_STU_LOAD_PURGE); -} - -static int _mv88e6xxx_port_fid(struct mv88e6xxx_priv_state *ps, int port, - u16 *new, u16 *old) -{ - struct dsa_switch *ds = ps->ds; - u16 upper_mask; - u16 fid; - int ret; - - if (mv88e6xxx_num_databases(ps) == 4096) - upper_mask = 0xff; - else if (mv88e6xxx_num_databases(ps) == 256) - upper_mask = 0xf; - else - return -EOPNOTSUPP; - - /* Port's default FID bits 3:0 are located in reg 0x06, offset 12 */ - ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_BASE_VLAN); - if (ret < 0) - return ret; - - fid = (ret & PORT_BASE_VLAN_FID_3_0_MASK) >> 12; - - if (new) { - ret &= ~PORT_BASE_VLAN_FID_3_0_MASK; - ret |= (*new << 12) & PORT_BASE_VLAN_FID_3_0_MASK; - - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_BASE_VLAN, - ret); - if (ret < 0) - return ret; - } - - /* Port's default FID bits 11:4 are located in reg 0x05, offset 0 */ - ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_CONTROL_1); - if (ret < 0) - return ret; - - fid |= (ret & upper_mask) << 4; - - if (new) { - ret &= ~upper_mask; - ret |= (*new >> 4) & upper_mask; - - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_CONTROL_1, - ret); - if (ret < 0) - return ret; - - netdev_dbg(ds->ports[port], "FID %d (was %d)\n", *new, fid); - } - - if (old) - *old = fid; - - return 0; -} - -static int _mv88e6xxx_port_fid_get(struct mv88e6xxx_priv_state *ps, - int port, u16 *fid) -{ - return _mv88e6xxx_port_fid(ps, port, NULL, fid); -} - -static int _mv88e6xxx_port_fid_set(struct mv88e6xxx_priv_state *ps, - int port, u16 fid) -{ - return _mv88e6xxx_port_fid(ps, port, &fid, NULL); -} - -static int _mv88e6xxx_fid_new(struct mv88e6xxx_priv_state *ps, u16 *fid) -{ - DECLARE_BITMAP(fid_bitmap, MV88E6XXX_N_FID); - struct mv88e6xxx_vtu_stu_entry vlan; - int i, err; - - bitmap_zero(fid_bitmap, MV88E6XXX_N_FID); - - /* Set every FID bit used by the (un)bridged ports */ - for (i = 0; i < ps->info->num_ports; ++i) { - err = _mv88e6xxx_port_fid_get(ps, i, fid); - if (err) - return err; - - set_bit(*fid, fid_bitmap); - } - - /* Set every FID bit used by the VLAN entries */ - err = _mv88e6xxx_vtu_vid_write(ps, GLOBAL_VTU_VID_MASK); - if (err) - return err; - - do { - err = _mv88e6xxx_vtu_getnext(ps, &vlan); - if (err) - return err; - - if (!vlan.valid) - break; - - set_bit(vlan.fid, fid_bitmap); - } while (vlan.vid < GLOBAL_VTU_VID_MASK); - - /* 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(ps))) - return -ENOSPC; - - /* Clear the database */ - return _mv88e6xxx_atu_flush(ps, *fid, true); -} - -static int _mv88e6xxx_vtu_new(struct mv88e6xxx_priv_state *ps, u16 vid, - struct mv88e6xxx_vtu_stu_entry *entry) -{ - struct dsa_switch *ds = ps->ds; - struct mv88e6xxx_vtu_stu_entry vlan = { - .valid = true, - .vid = vid, - }; - int i, err; - - err = _mv88e6xxx_fid_new(ps, &vlan.fid); - if (err) - return err; - - /* exclude all ports except the CPU and DSA ports */ - for (i = 0; i < ps->info->num_ports; ++i) - vlan.data[i] = dsa_is_cpu_port(ds, i) || dsa_is_dsa_port(ds, i) - ? GLOBAL_VTU_DATA_MEMBER_TAG_UNMODIFIED - : GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER; - - if (mv88e6xxx_6097_family(ps) || mv88e6xxx_6165_family(ps) || - mv88e6xxx_6351_family(ps) || mv88e6xxx_6352_family(ps)) { - struct mv88e6xxx_vtu_stu_entry vstp; - - /* Adding a VTU entry requires a valid STU entry. As VSTP is not - * implemented, only one STU entry is needed to cover all VTU - * entries. Thus, validate the SID 0. - */ - vlan.sid = 0; - err = _mv88e6xxx_stu_getnext(ps, GLOBAL_VTU_SID_MASK, &vstp); - if (err) - return err; - - if (vstp.sid != vlan.sid || !vstp.valid) { - memset(&vstp, 0, sizeof(vstp)); - vstp.valid = true; - vstp.sid = vlan.sid; - - err = _mv88e6xxx_stu_loadpurge(ps, &vstp); - if (err) - return err; - } - } - - *entry = vlan; - return 0; -} - -static int _mv88e6xxx_vtu_get(struct mv88e6xxx_priv_state *ps, u16 vid, - struct mv88e6xxx_vtu_stu_entry *entry, bool creat) -{ - int err; - - if (!vid) - return -EINVAL; - - err = _mv88e6xxx_vtu_vid_write(ps, vid - 1); - if (err) - return err; - - err = _mv88e6xxx_vtu_getnext(ps, entry); - if (err) - return err; - - if (entry->vid != vid || !entry->valid) { - if (!creat) - return -EOPNOTSUPP; - /* -ENOENT would've been more appropriate, but switchdev expects - * -EOPNOTSUPP to inform bridge about an eventual software VLAN. - */ - - err = _mv88e6xxx_vtu_new(ps, vid, entry); - } - - return err; -} - -static int mv88e6xxx_port_check_hw_vlan(struct dsa_switch *ds, int port, - u16 vid_begin, u16 vid_end) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - struct mv88e6xxx_vtu_stu_entry vlan; - int i, err; - - if (!vid_begin) - return -EOPNOTSUPP; - - mutex_lock(&ps->smi_mutex); - - err = _mv88e6xxx_vtu_vid_write(ps, vid_begin - 1); - if (err) - goto unlock; - - do { - err = _mv88e6xxx_vtu_getnext(ps, &vlan); - if (err) - goto unlock; - - if (!vlan.valid) - break; - - if (vlan.vid > vid_end) - break; - - for (i = 0; i < ps->info->num_ports; ++i) { - if (dsa_is_dsa_port(ds, i) || dsa_is_cpu_port(ds, i)) - continue; - - if (vlan.data[i] == - GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER) - continue; - - if (ps->ports[i].bridge_dev == - ps->ports[port].bridge_dev) - break; /* same bridge, check next VLAN */ - - netdev_warn(ds->ports[port], - "hardware VLAN %d already used by %s\n", - vlan.vid, - netdev_name(ps->ports[i].bridge_dev)); - err = -EOPNOTSUPP; - goto unlock; - } - } while (vlan.vid < vid_end); - -unlock: - mutex_unlock(&ps->smi_mutex); - - return err; -} - -static const char * const mv88e6xxx_port_8021q_mode_names[] = { - [PORT_CONTROL_2_8021Q_DISABLED] = "Disabled", - [PORT_CONTROL_2_8021Q_FALLBACK] = "Fallback", - [PORT_CONTROL_2_8021Q_CHECK] = "Check", - [PORT_CONTROL_2_8021Q_SECURE] = "Secure", -}; - -static int mv88e6xxx_port_vlan_filtering(struct dsa_switch *ds, int port, - bool vlan_filtering) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - u16 old, new = vlan_filtering ? PORT_CONTROL_2_8021Q_SECURE : - PORT_CONTROL_2_8021Q_DISABLED; - int ret; - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_VTU)) - return -EOPNOTSUPP; - - mutex_lock(&ps->smi_mutex); - - ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_CONTROL_2); - if (ret < 0) - goto unlock; - - old = ret & PORT_CONTROL_2_8021Q_MASK; - - if (new != old) { - ret &= ~PORT_CONTROL_2_8021Q_MASK; - ret |= new & PORT_CONTROL_2_8021Q_MASK; - - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_CONTROL_2, - ret); - if (ret < 0) - goto unlock; - - netdev_dbg(ds->ports[port], "802.1Q Mode %s (was %s)\n", - mv88e6xxx_port_8021q_mode_names[new], - mv88e6xxx_port_8021q_mode_names[old]); - } - - ret = 0; -unlock: - mutex_unlock(&ps->smi_mutex); - - return ret; -} - -static int mv88e6xxx_port_vlan_prepare(struct dsa_switch *ds, int port, - const struct switchdev_obj_port_vlan *vlan, - struct switchdev_trans *trans) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - int err; - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_VTU)) - 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_vlan_add(struct mv88e6xxx_priv_state *ps, int port, - u16 vid, bool untagged) -{ - struct mv88e6xxx_vtu_stu_entry vlan; - int err; - - err = _mv88e6xxx_vtu_get(ps, vid, &vlan, true); - if (err) - return err; - - vlan.data[port] = untagged ? - GLOBAL_VTU_DATA_MEMBER_TAG_UNTAGGED : - GLOBAL_VTU_DATA_MEMBER_TAG_TAGGED; - - return _mv88e6xxx_vtu_loadpurge(ps, &vlan); -} - -static void mv88e6xxx_port_vlan_add(struct dsa_switch *ds, int port, - const struct switchdev_obj_port_vlan *vlan, - struct switchdev_trans *trans) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; - bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID; - u16 vid; - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_VTU)) - return; - - mutex_lock(&ps->smi_mutex); - - for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) - if (_mv88e6xxx_port_vlan_add(ps, port, vid, untagged)) - netdev_err(ds->ports[port], "failed to add VLAN %d%c\n", - vid, untagged ? 'u' : 't'); - - if (pvid && _mv88e6xxx_port_pvid_set(ps, port, vlan->vid_end)) - netdev_err(ds->ports[port], "failed to set PVID %d\n", - vlan->vid_end); - - mutex_unlock(&ps->smi_mutex); -} - -static int _mv88e6xxx_port_vlan_del(struct mv88e6xxx_priv_state *ps, - int port, u16 vid) -{ - struct dsa_switch *ds = ps->ds; - struct mv88e6xxx_vtu_stu_entry vlan; - int i, err; - - err = _mv88e6xxx_vtu_get(ps, vid, &vlan, false); - if (err) - return err; - - /* Tell switchdev if this VLAN is handled in software */ - if (vlan.data[port] == GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER) - return -EOPNOTSUPP; - - vlan.data[port] = GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER; - - /* keep the VLAN unless all ports are excluded */ - vlan.valid = false; - for (i = 0; i < ps->info->num_ports; ++i) { - if (dsa_is_cpu_port(ds, i) || dsa_is_dsa_port(ds, i)) - continue; - - if (vlan.data[i] != GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER) { - vlan.valid = true; - break; - } - } - - err = _mv88e6xxx_vtu_loadpurge(ps, &vlan); - if (err) - return err; - - return _mv88e6xxx_atu_remove(ps, 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_priv_state *ps = ds_to_priv(ds); - u16 pvid, vid; - int err = 0; - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_VTU)) - return -EOPNOTSUPP; - - mutex_lock(&ps->smi_mutex); - - err = _mv88e6xxx_port_pvid_get(ps, port, &pvid); - if (err) - goto unlock; - - for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) { - err = _mv88e6xxx_port_vlan_del(ps, port, vid); - if (err) - goto unlock; - - if (vid == pvid) { - err = _mv88e6xxx_port_pvid_set(ps, port, 0); - if (err) - goto unlock; - } - } - -unlock: - mutex_unlock(&ps->smi_mutex); - - return err; -} - -static int _mv88e6xxx_atu_mac_write(struct mv88e6xxx_priv_state *ps, - const unsigned char *addr) -{ - int i, ret; - - for (i = 0; i < 3; i++) { - ret = _mv88e6xxx_reg_write( - ps, REG_GLOBAL, GLOBAL_ATU_MAC_01 + i, - (addr[i * 2] << 8) | addr[i * 2 + 1]); - if (ret < 0) - return ret; - } - - return 0; -} - -static int _mv88e6xxx_atu_mac_read(struct mv88e6xxx_priv_state *ps, - unsigned char *addr) -{ - int i, ret; - - for (i = 0; i < 3; i++) { - ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, - GLOBAL_ATU_MAC_01 + i); - if (ret < 0) - return ret; - addr[i * 2] = ret >> 8; - addr[i * 2 + 1] = ret & 0xff; - } - - return 0; -} - -static int _mv88e6xxx_atu_load(struct mv88e6xxx_priv_state *ps, - struct mv88e6xxx_atu_entry *entry) -{ - int ret; - - ret = _mv88e6xxx_atu_wait(ps); - if (ret < 0) - return ret; - - ret = _mv88e6xxx_atu_mac_write(ps, entry->mac); - if (ret < 0) - return ret; - - ret = _mv88e6xxx_atu_data_write(ps, entry); - if (ret < 0) - return ret; - - return _mv88e6xxx_atu_cmd(ps, entry->fid, GLOBAL_ATU_OP_LOAD_DB); -} - -static int _mv88e6xxx_port_fdb_load(struct mv88e6xxx_priv_state *ps, int port, - const unsigned char *addr, u16 vid, - u8 state) -{ - struct mv88e6xxx_atu_entry entry = { 0 }; - struct mv88e6xxx_vtu_stu_entry vlan; - int err; - - /* Null VLAN ID corresponds to the port private database */ - if (vid == 0) - err = _mv88e6xxx_port_fid_get(ps, port, &vlan.fid); - else - err = _mv88e6xxx_vtu_get(ps, vid, &vlan, false); - if (err) - return err; - - entry.fid = vlan.fid; - entry.state = state; - ether_addr_copy(entry.mac, addr); - if (state != GLOBAL_ATU_DATA_STATE_UNUSED) { - entry.trunk = false; - entry.portv_trunkid = BIT(port); - } - - return _mv88e6xxx_atu_load(ps, &entry); -} - -static int mv88e6xxx_port_fdb_prepare(struct dsa_switch *ds, int port, - const struct switchdev_obj_port_fdb *fdb, - struct switchdev_trans *trans) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_ATU)) - return -EOPNOTSUPP; - - /* We don't need any dynamic resource from the kernel (yet), - * so skip the prepare phase. - */ - return 0; -} - -static void mv88e6xxx_port_fdb_add(struct dsa_switch *ds, int port, - const struct switchdev_obj_port_fdb *fdb, - struct switchdev_trans *trans) -{ - int state = is_multicast_ether_addr(fdb->addr) ? - GLOBAL_ATU_DATA_STATE_MC_STATIC : - GLOBAL_ATU_DATA_STATE_UC_STATIC; - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_ATU)) - return; - - mutex_lock(&ps->smi_mutex); - if (_mv88e6xxx_port_fdb_load(ps, port, fdb->addr, fdb->vid, state)) - netdev_err(ds->ports[port], "failed to load MAC address\n"); - mutex_unlock(&ps->smi_mutex); -} - -static int mv88e6xxx_port_fdb_del(struct dsa_switch *ds, int port, - const struct switchdev_obj_port_fdb *fdb) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - int ret; - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_ATU)) - return -EOPNOTSUPP; - - mutex_lock(&ps->smi_mutex); - ret = _mv88e6xxx_port_fdb_load(ps, port, fdb->addr, fdb->vid, - GLOBAL_ATU_DATA_STATE_UNUSED); - mutex_unlock(&ps->smi_mutex); - - return ret; -} - -static int _mv88e6xxx_atu_getnext(struct mv88e6xxx_priv_state *ps, u16 fid, - struct mv88e6xxx_atu_entry *entry) -{ - struct mv88e6xxx_atu_entry next = { 0 }; - int ret; - - next.fid = fid; - - ret = _mv88e6xxx_atu_wait(ps); - if (ret < 0) - return ret; - - ret = _mv88e6xxx_atu_cmd(ps, fid, GLOBAL_ATU_OP_GET_NEXT_DB); - if (ret < 0) - return ret; - - ret = _mv88e6xxx_atu_mac_read(ps, next.mac); - if (ret < 0) - return ret; - - ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_ATU_DATA); - if (ret < 0) - return ret; - - next.state = ret & GLOBAL_ATU_DATA_STATE_MASK; - if (next.state != GLOBAL_ATU_DATA_STATE_UNUSED) { - unsigned int mask, shift; - - if (ret & GLOBAL_ATU_DATA_TRUNK) { - next.trunk = true; - mask = GLOBAL_ATU_DATA_TRUNK_ID_MASK; - shift = GLOBAL_ATU_DATA_TRUNK_ID_SHIFT; - } else { - next.trunk = false; - mask = GLOBAL_ATU_DATA_PORT_VECTOR_MASK; - shift = GLOBAL_ATU_DATA_PORT_VECTOR_SHIFT; - } - - next.portv_trunkid = (ret & mask) >> shift; - } - - *entry = next; - return 0; -} - -static int _mv88e6xxx_port_fdb_dump_one(struct mv88e6xxx_priv_state *ps, - u16 fid, u16 vid, int port, - struct switchdev_obj_port_fdb *fdb, - int (*cb)(struct switchdev_obj *obj)) -{ - struct mv88e6xxx_atu_entry addr = { - .mac = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }, - }; - int err; - - err = _mv88e6xxx_atu_mac_write(ps, addr.mac); - if (err) - return err; - - do { - err = _mv88e6xxx_atu_getnext(ps, fid, &addr); - if (err) - break; - - if (addr.state == GLOBAL_ATU_DATA_STATE_UNUSED) - break; - - if (!addr.trunk && addr.portv_trunkid & BIT(port)) { - bool is_static = addr.state == - (is_multicast_ether_addr(addr.mac) ? - GLOBAL_ATU_DATA_STATE_MC_STATIC : - GLOBAL_ATU_DATA_STATE_UC_STATIC); - - fdb->vid = vid; - ether_addr_copy(fdb->addr, addr.mac); - fdb->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE; - - err = cb(&fdb->obj); - if (err) - break; - } - } while (!is_broadcast_ether_addr(addr.mac)); - - return err; -} - -static int mv88e6xxx_port_fdb_dump(struct dsa_switch *ds, int port, - struct switchdev_obj_port_fdb *fdb, - int (*cb)(struct switchdev_obj *obj)) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - struct mv88e6xxx_vtu_stu_entry vlan = { - .vid = GLOBAL_VTU_VID_MASK, /* all ones */ - }; - u16 fid; - int err; - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_ATU)) - return -EOPNOTSUPP; - - mutex_lock(&ps->smi_mutex); - - /* Dump port's default Filtering Information Database (VLAN ID 0) */ - err = _mv88e6xxx_port_fid_get(ps, port, &fid); - if (err) - goto unlock; - - err = _mv88e6xxx_port_fdb_dump_one(ps, fid, 0, port, fdb, cb); - if (err) - goto unlock; - - /* Dump VLANs' Filtering Information Databases */ - err = _mv88e6xxx_vtu_vid_write(ps, vlan.vid); - if (err) - goto unlock; - - do { - err = _mv88e6xxx_vtu_getnext(ps, &vlan); - if (err) - break; - - if (!vlan.valid) - break; - - err = _mv88e6xxx_port_fdb_dump_one(ps, vlan.fid, vlan.vid, port, - fdb, cb); - if (err) - break; - } while (vlan.vid < GLOBAL_VTU_VID_MASK); - -unlock: - mutex_unlock(&ps->smi_mutex); - - return err; -} - -static int mv88e6xxx_port_bridge_join(struct dsa_switch *ds, int port, - struct net_device *bridge) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - int i, err = 0; - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_VLANTABLE)) - return -EOPNOTSUPP; - - mutex_lock(&ps->smi_mutex); - - /* Assign the bridge and remap each port's VLANTable */ - ps->ports[port].bridge_dev = bridge; - - for (i = 0; i < ps->info->num_ports; ++i) { - if (ps->ports[i].bridge_dev == bridge) { - err = _mv88e6xxx_port_based_vlan_map(ps, i); - if (err) - break; - } - } - - mutex_unlock(&ps->smi_mutex); - - return err; -} - -static void mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - struct net_device *bridge = ps->ports[port].bridge_dev; - int i; - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_VLANTABLE)) - return; - - mutex_lock(&ps->smi_mutex); - - /* Unassign the bridge and remap each port's VLANTable */ - ps->ports[port].bridge_dev = NULL; - - for (i = 0; i < ps->info->num_ports; ++i) - if (i == port || ps->ports[i].bridge_dev == bridge) - if (_mv88e6xxx_port_based_vlan_map(ps, i)) - netdev_warn(ds->ports[i], "failed to remap\n"); - - mutex_unlock(&ps->smi_mutex); -} - -static int _mv88e6xxx_phy_page_write(struct mv88e6xxx_priv_state *ps, - int port, int page, int reg, int val) -{ - int ret; - - ret = _mv88e6xxx_phy_write_indirect(ps, port, 0x16, page); - if (ret < 0) - goto restore_page_0; - - ret = _mv88e6xxx_phy_write_indirect(ps, port, reg, val); -restore_page_0: - _mv88e6xxx_phy_write_indirect(ps, port, 0x16, 0x0); - - return ret; -} - -static int _mv88e6xxx_phy_page_read(struct mv88e6xxx_priv_state *ps, - int port, int page, int reg) -{ - int ret; - - ret = _mv88e6xxx_phy_write_indirect(ps, port, 0x16, page); - if (ret < 0) - goto restore_page_0; - - ret = _mv88e6xxx_phy_read_indirect(ps, port, reg); -restore_page_0: - _mv88e6xxx_phy_write_indirect(ps, port, 0x16, 0x0); - - return ret; -} - -static int mv88e6xxx_switch_reset(struct mv88e6xxx_priv_state *ps) -{ - bool ppu_active = mv88e6xxx_has(ps, MV88E6XXX_FLAG_PPU_ACTIVE); - u16 is_reset = (ppu_active ? 0x8800 : 0xc800); - struct gpio_desc *gpiod = ps->reset; - unsigned long timeout; - int ret; - int i; - - /* Set all ports to the disabled state. */ - for (i = 0; i < ps->info->num_ports; i++) { - ret = _mv88e6xxx_reg_read(ps, REG_PORT(i), PORT_CONTROL); - if (ret < 0) - return ret; - - ret = _mv88e6xxx_reg_write(ps, REG_PORT(i), PORT_CONTROL, - ret & 0xfffc); - if (ret) - return ret; - } - - /* Wait for transmit queues to drain. */ - usleep_range(2000, 4000); - - /* 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); - } - - /* 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) - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, 0x04, 0xc000); - else - ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, 0x04, 0xc400); - if (ret) - return ret; - - /* Wait up to one second for reset to complete. */ - timeout = jiffies + 1 * HZ; - while (time_before(jiffies, timeout)) { - ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, 0x00); - if (ret < 0) - return ret; - - if ((ret & is_reset) == is_reset) - break; - usleep_range(1000, 2000); - } - if (time_after(jiffies, timeout)) - ret = -ETIMEDOUT; - else - ret = 0; - - return ret; -} - -static int mv88e6xxx_power_on_serdes(struct mv88e6xxx_priv_state *ps) -{ - int ret; - - ret = _mv88e6xxx_phy_page_read(ps, REG_FIBER_SERDES, PAGE_FIBER_SERDES, - MII_BMCR); - if (ret < 0) - return ret; - - if (ret & BMCR_PDOWN) { - ret &= ~BMCR_PDOWN; - ret = _mv88e6xxx_phy_page_write(ps, REG_FIBER_SERDES, - PAGE_FIBER_SERDES, MII_BMCR, - ret); - } - - return ret; -} - -static int mv88e6xxx_setup_port(struct mv88e6xxx_priv_state *ps, int port) -{ - struct dsa_switch *ds = ps->ds; - int ret; - u16 reg; - - if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || - mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || - mv88e6xxx_6185_family(ps) || mv88e6xxx_6095_family(ps) || - mv88e6xxx_6065_family(ps) || mv88e6xxx_6320_family(ps)) { - /* 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. - */ - reg = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_PCS_CTRL); - if (dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port)) { - reg &= ~PORT_PCS_CTRL_UNFORCED; - reg |= PORT_PCS_CTRL_FORCE_LINK | - PORT_PCS_CTRL_LINK_UP | - PORT_PCS_CTRL_DUPLEX_FULL | - PORT_PCS_CTRL_FORCE_DUPLEX; - if (mv88e6xxx_6065_family(ps)) - reg |= PORT_PCS_CTRL_100; - else - reg |= PORT_PCS_CTRL_1000; - } else { - reg |= PORT_PCS_CTRL_UNFORCED; - } - - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), - PORT_PCS_CTRL, reg); - if (ret) - return ret; - } - - /* 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 = 0; - if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || - mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || - mv88e6xxx_6095_family(ps) || mv88e6xxx_6065_family(ps) || - mv88e6xxx_6185_family(ps) || mv88e6xxx_6320_family(ps)) - reg = PORT_CONTROL_IGMP_MLD_SNOOP | - PORT_CONTROL_USE_TAG | PORT_CONTROL_USE_IP | - PORT_CONTROL_STATE_FORWARDING; - if (dsa_is_cpu_port(ds, port)) { - if (mv88e6xxx_6095_family(ps) || mv88e6xxx_6185_family(ps)) - reg |= PORT_CONTROL_DSA_TAG; - if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || - mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || - mv88e6xxx_6320_family(ps)) { - if (ds->dst->tag_protocol == DSA_TAG_PROTO_EDSA) - reg |= PORT_CONTROL_FRAME_ETHER_TYPE_DSA; - else - reg |= PORT_CONTROL_FRAME_MODE_DSA; - reg |= PORT_CONTROL_FORWARD_UNKNOWN | - PORT_CONTROL_FORWARD_UNKNOWN_MC; - } - - if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || - mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || - mv88e6xxx_6095_family(ps) || mv88e6xxx_6065_family(ps) || - mv88e6xxx_6185_family(ps) || mv88e6xxx_6320_family(ps)) { - if (ds->dst->tag_protocol == DSA_TAG_PROTO_EDSA) - reg |= PORT_CONTROL_EGRESS_ADD_TAG; - } - } - if (dsa_is_dsa_port(ds, port)) { - if (mv88e6xxx_6095_family(ps) || mv88e6xxx_6185_family(ps)) - reg |= PORT_CONTROL_DSA_TAG; - if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || - mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || - mv88e6xxx_6320_family(ps)) { - reg |= PORT_CONTROL_FRAME_MODE_DSA; - } - - if (port == dsa_upstream_port(ds)) - reg |= PORT_CONTROL_FORWARD_UNKNOWN | - PORT_CONTROL_FORWARD_UNKNOWN_MC; - } - if (reg) { - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), - PORT_CONTROL, reg); - if (ret) - return ret; - } - - /* If this port is connected to a SerDes, make sure the SerDes is not - * powered down. - */ - if (mv88e6xxx_6352_family(ps)) { - ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_STATUS); - if (ret < 0) - return ret; - ret &= PORT_STATUS_CMODE_MASK; - if ((ret == PORT_STATUS_CMODE_100BASE_X) || - (ret == PORT_STATUS_CMODE_1000BASE_X) || - (ret == PORT_STATUS_CMODE_SGMII)) { - ret = mv88e6xxx_power_on_serdes(ps); - if (ret < 0) - return ret; - } - } - - /* 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. - */ - reg = 0; - if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || - mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || - mv88e6xxx_6095_family(ps) || mv88e6xxx_6320_family(ps) || - mv88e6xxx_6185_family(ps)) - reg = PORT_CONTROL_2_MAP_DA; - - if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || - mv88e6xxx_6165_family(ps) || mv88e6xxx_6320_family(ps)) - reg |= PORT_CONTROL_2_JUMBO_10240; - - if (mv88e6xxx_6095_family(ps) || mv88e6xxx_6185_family(ps)) { - /* Set the upstream port this port should use */ - reg |= dsa_upstream_port(ds); - /* enable forwarding of unknown multicast addresses to - * the upstream port - */ - if (port == dsa_upstream_port(ds)) - reg |= PORT_CONTROL_2_FORWARD_UNKNOWN; - } - - reg |= PORT_CONTROL_2_8021Q_DISABLED; - - if (reg) { - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), - PORT_CONTROL_2, reg); - if (ret) - return ret; - } - - /* 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; - - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_ASSOC_VECTOR, reg); - if (ret) - return ret; - - /* Egress rate control 2: disable egress rate control. */ - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_RATE_CONTROL_2, - 0x0000); - if (ret) - return ret; - - if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || - mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || - mv88e6xxx_6320_family(ps)) { - /* Do not limit the period of time that this port can - * be paused for by the remote end or the period of - * time that this port can pause the remote end. - */ - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), - PORT_PAUSE_CTRL, 0x0000); - if (ret) - return ret; - - /* Port ATU control: disable limiting the number of - * address database entries that this port is allowed - * to use. - */ - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), - PORT_ATU_CONTROL, 0x0000); - /* Priority Override: disable DA, SA and VTU priority - * override. - */ - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), - PORT_PRI_OVERRIDE, 0x0000); - if (ret) - return ret; - - /* Port Ethertype: use the Ethertype DSA Ethertype - * value. - */ - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), - PORT_ETH_TYPE, ETH_P_EDSA); - if (ret) - return ret; - /* Tag Remap: use an identity 802.1p prio -> switch - * prio mapping. - */ - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), - PORT_TAG_REGMAP_0123, 0x3210); - if (ret) - return ret; - - /* Tag Remap 2: use an identity 802.1p prio -> switch - * prio mapping. - */ - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), - PORT_TAG_REGMAP_4567, 0x7654); - if (ret) - return ret; - } - - if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || - mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || - mv88e6xxx_6185_family(ps) || mv88e6xxx_6095_family(ps) || - mv88e6xxx_6320_family(ps)) { - /* Rate Control: disable ingress rate limiting. */ - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), - PORT_RATE_CONTROL, 0x0001); - if (ret) - return ret; - } - - /* Port Control 1: disable trunking, disable sending - * learning messages to this port. - */ - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_CONTROL_1, 0x0000); - if (ret) - return ret; - - /* 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. - */ - ret = _mv88e6xxx_port_fid_set(ps, port, 0); - if (ret) - return ret; - - ret = _mv88e6xxx_port_based_vlan_map(ps, port); - if (ret) - return ret; - - /* Default VLAN ID and priority: don't set a default VLAN - * ID, and set the default packet priority to zero. - */ - ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_DEFAULT_VLAN, - 0x0000); - if (ret) - return ret; - - return 0; -} - -static int mv88e6xxx_setup_global(struct mv88e6xxx_priv_state *ps) -{ - struct dsa_switch *ds = ps->ds; - u32 upstream_port = dsa_upstream_port(ds); - u16 reg; - int err; - int i; - - /* Enable the PHY Polling Unit if present, don't discard any packets, - * and mask all interrupt sources. - */ - reg = 0; - if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_PPU) || - mv88e6xxx_has(ps, MV88E6XXX_FLAG_PPU_ACTIVE)) - reg |= GLOBAL_CONTROL_PPU_ENABLE; - - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_CONTROL, reg); - if (err) - return err; - - /* Configure the upstream port, and configure it as the port to which - * ingress and egress and ARP monitor frames are to be sent. - */ - reg = upstream_port << GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT | - upstream_port << GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT | - upstream_port << GLOBAL_MONITOR_CONTROL_ARP_SHIFT; - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_MONITOR_CONTROL, reg); - if (err) - return err; - - /* Disable remote management, and set the switch's DSA device number. */ - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_CONTROL_2, - GLOBAL_CONTROL_2_MULTIPLE_CASCADE | - (ds->index & 0x1f)); - if (err) - return err; - - /* Set the default address aging time to 5 minutes, and - * enable address learn messages to be sent to all message - * ports. - */ - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_ATU_CONTROL, - 0x0140 | GLOBAL_ATU_CONTROL_LEARN2ALL); - if (err) - return err; - - /* Configure the IP ToS mapping registers. */ - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IP_PRI_0, 0x0000); - if (err) - return err; - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IP_PRI_1, 0x0000); - if (err) - return err; - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IP_PRI_2, 0x5555); - if (err) - return err; - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IP_PRI_3, 0x5555); - if (err) - return err; - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IP_PRI_4, 0xaaaa); - if (err) - return err; - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IP_PRI_5, 0xaaaa); - if (err) - return err; - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IP_PRI_6, 0xffff); - if (err) - return err; - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IP_PRI_7, 0xffff); - if (err) - return err; - - /* Configure the IEEE 802.1p priority mapping register. */ - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IEEE_PRI, 0xfa41); - if (err) - return err; - - /* Send all frames with destination addresses matching - * 01:80:c2:00:00:0x to the CPU port. - */ - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_MGMT_EN_0X, 0xffff); - if (err) - return err; - - /* Ignore removed tag data on doubly tagged packets, disable - * flow control messages, force flow control priority to the - * highest, and send all special multicast frames to the CPU - * port at the highest priority. - */ - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_SWITCH_MGMT, - 0x7 | GLOBAL2_SWITCH_MGMT_RSVD2CPU | 0x70 | - GLOBAL2_SWITCH_MGMT_FORCE_FLOW_CTRL_PRI); - if (err) - return err; - - /* Program the DSA routing table. */ - for (i = 0; i < 32; i++) { - int nexthop = 0x1f; - - if (ps->ds->cd->rtable && - i != ps->ds->index && i < ps->ds->dst->pd->nr_chips) - nexthop = ps->ds->cd->rtable[i] & 0x1f; - - err = _mv88e6xxx_reg_write( - ps, REG_GLOBAL2, - GLOBAL2_DEVICE_MAPPING, - GLOBAL2_DEVICE_MAPPING_UPDATE | - (i << GLOBAL2_DEVICE_MAPPING_TARGET_SHIFT) | nexthop); - if (err) - return err; - } - - /* Clear all trunk masks. */ - for (i = 0; i < 8; i++) { - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_TRUNK_MASK, - 0x8000 | - (i << GLOBAL2_TRUNK_MASK_NUM_SHIFT) | - ((1 << ps->info->num_ports) - 1)); - if (err) - return err; - } - - /* Clear all trunk mappings. */ - for (i = 0; i < 16; i++) { - err = _mv88e6xxx_reg_write( - ps, REG_GLOBAL2, - GLOBAL2_TRUNK_MAPPING, - GLOBAL2_TRUNK_MAPPING_UPDATE | - (i << GLOBAL2_TRUNK_MAPPING_ID_SHIFT)); - if (err) - return err; - } - - if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || - mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || - mv88e6xxx_6320_family(ps)) { - /* Send all frames with destination addresses matching - * 01:80:c2:00:00:2x to the CPU port. - */ - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, - GLOBAL2_MGMT_EN_2X, 0xffff); - if (err) - return err; - - /* Initialise cross-chip port VLAN table to reset - * defaults. - */ - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, - GLOBAL2_PVT_ADDR, 0x9000); - if (err) - return err; - - /* Clear the priority override table. */ - for (i = 0; i < 16; i++) { - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, - GLOBAL2_PRIO_OVERRIDE, - 0x8000 | (i << 8)); - if (err) - return err; - } - } - - if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || - mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || - mv88e6xxx_6185_family(ps) || mv88e6xxx_6095_family(ps) || - mv88e6xxx_6320_family(ps)) { - /* Disable ingress rate limiting by resetting all - * ingress rate limit registers to their initial - * state. - */ - for (i = 0; i < ps->info->num_ports; i++) { - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, - GLOBAL2_INGRESS_OP, - 0x9000 | (i << 8)); - if (err) - return err; - } - } - - /* Clear the statistics counters for all ports */ - err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_STATS_OP, - GLOBAL_STATS_OP_FLUSH_ALL); - if (err) - return err; - - /* Wait for the flush to complete. */ - err = _mv88e6xxx_stats_wait(ps); - if (err) - return err; - - /* Clear all ATU entries */ - err = _mv88e6xxx_atu_flush(ps, 0, true); - if (err) - return err; - - /* Clear all the VTU and STU entries */ - err = _mv88e6xxx_vtu_stu_flush(ps); - if (err < 0) - return err; - - return err; -} - -static int mv88e6xxx_setup(struct dsa_switch *ds) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - int err; - int i; - - ps->ds = ds; - - if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_EEPROM)) - mutex_init(&ps->eeprom_mutex); - - if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_PPU)) - mv88e6xxx_ppu_state_init(ps); - - mutex_lock(&ps->smi_mutex); - - err = mv88e6xxx_switch_reset(ps); - if (err) - goto unlock; - - err = mv88e6xxx_setup_global(ps); - if (err) - goto unlock; - - for (i = 0; i < ps->info->num_ports; i++) { - err = mv88e6xxx_setup_port(ps, i); - if (err) - goto unlock; - } - -unlock: - mutex_unlock(&ps->smi_mutex); - - return err; -} - -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->smi_mutex); - ret = _mv88e6xxx_phy_page_read(ps, port, page, reg); - mutex_unlock(&ps->smi_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->smi_mutex); - ret = _mv88e6xxx_phy_page_write(ps, port, page, reg, val); - mutex_unlock(&ps->smi_mutex); - - return ret; -} - -static int mv88e6xxx_port_to_phy_addr(struct mv88e6xxx_priv_state *ps, - int port) -{ - if (port >= 0 && port < ps->info->num_ports) - return port; - return -EINVAL; -} - -static 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(ps, port); - int ret; - - if (addr < 0) - return 0xffff; - - mutex_lock(&ps->smi_mutex); - - if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_PPU)) - ret = mv88e6xxx_phy_read_ppu(ps, addr, regnum); - else if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_SMI_PHY)) - ret = _mv88e6xxx_phy_read_indirect(ps, addr, regnum); - else - ret = _mv88e6xxx_phy_read(ps, addr, regnum); - - mutex_unlock(&ps->smi_mutex); - return ret; -} - -static 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(ps, port); - int ret; - - if (addr < 0) - return 0xffff; - - mutex_lock(&ps->smi_mutex); - - if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_PPU)) - ret = mv88e6xxx_phy_write_ppu(ps, addr, regnum, val); - else if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_SMI_PHY)) - ret = _mv88e6xxx_phy_write_indirect(ps, addr, regnum, val); - else - ret = _mv88e6xxx_phy_write(ps, addr, regnum, val); - - mutex_unlock(&ps->smi_mutex); - return ret; -} - -#ifdef CONFIG_NET_DSA_HWMON - -static int mv88e61xx_get_temp(struct dsa_switch *ds, int *temp) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - int ret; - int val; - - *temp = 0; - - mutex_lock(&ps->smi_mutex); - - ret = _mv88e6xxx_phy_write(ps, 0x0, 0x16, 0x6); - if (ret < 0) - goto error; - - /* Enable temperature sensor */ - ret = _mv88e6xxx_phy_read(ps, 0x0, 0x1a); - if (ret < 0) - goto error; - - ret = _mv88e6xxx_phy_write(ps, 0x0, 0x1a, ret | (1 << 5)); - if (ret < 0) - goto error; - - /* Wait for temperature to stabilize */ - usleep_range(10000, 12000); - - val = _mv88e6xxx_phy_read(ps, 0x0, 0x1a); - if (val < 0) { - ret = val; - goto error; - } - - /* Disable temperature sensor */ - ret = _mv88e6xxx_phy_write(ps, 0x0, 0x1a, ret & ~(1 << 5)); - if (ret < 0) - goto error; - - *temp = ((val & 0x1f) - 5) * 5; - -error: - _mv88e6xxx_phy_write(ps, 0x0, 0x16, 0x0); - mutex_unlock(&ps->smi_mutex); - return ret; -} - -static int mv88e63xx_get_temp(struct dsa_switch *ds, int *temp) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - int phy = mv88e6xxx_6320_family(ps) ? 3 : 0; - int ret; - - *temp = 0; - - ret = mv88e6xxx_phy_page_read(ds, phy, 6, 27); - if (ret < 0) - return ret; - - *temp = (ret & 0xff) - 25; - - return 0; -} - -static int mv88e6xxx_get_temp(struct dsa_switch *ds, int *temp) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_TEMP)) - return -EOPNOTSUPP; - - if (mv88e6xxx_6320_family(ps) || mv88e6xxx_6352_family(ps)) - return mv88e63xx_get_temp(ds, temp); - - return mv88e61xx_get_temp(ds, temp); -} - -static int mv88e6xxx_get_temp_limit(struct dsa_switch *ds, int *temp) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - int phy = mv88e6xxx_6320_family(ps) ? 3 : 0; - int ret; - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_TEMP_LIMIT)) - return -EOPNOTSUPP; - - *temp = 0; - - ret = mv88e6xxx_phy_page_read(ds, phy, 6, 26); - if (ret < 0) - return ret; - - *temp = (((ret >> 8) & 0x1f) * 5) - 25; - - return 0; -} - -static int mv88e6xxx_set_temp_limit(struct dsa_switch *ds, int temp) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - int phy = mv88e6xxx_6320_family(ps) ? 3 : 0; - int ret; - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_TEMP_LIMIT)) - return -EOPNOTSUPP; - - ret = mv88e6xxx_phy_page_read(ds, phy, 6, 26); - if (ret < 0) - return ret; - temp = clamp_val(DIV_ROUND_CLOSEST(temp, 5) + 5, 0, 0x1f); - return mv88e6xxx_phy_page_write(ds, phy, 6, 26, - (ret & 0xe0ff) | (temp << 8)); -} - -static int mv88e6xxx_get_temp_alarm(struct dsa_switch *ds, bool *alarm) -{ - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - int phy = mv88e6xxx_6320_family(ps) ? 3 : 0; - int ret; - - if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_TEMP_LIMIT)) - return -EOPNOTSUPP; - - *alarm = false; - - ret = mv88e6xxx_phy_page_read(ds, phy, 6, 26); - if (ret < 0) - return ret; - - *alarm = !!(ret & 0x40); - - return 0; -} -#endif /* CONFIG_NET_DSA_HWMON */ - -static const struct mv88e6xxx_info mv88e6xxx_table[] = { - [MV88E6085] = { - .prod_num = PORT_SWITCH_ID_PROD_NUM_6085, - .family = MV88E6XXX_FAMILY_6097, - .name = "Marvell 88E6085", - .num_databases = 4096, - .num_ports = 10, - .flags = MV88E6XXX_FLAGS_FAMILY_6097, - }, - - [MV88E6095] = { - .prod_num = PORT_SWITCH_ID_PROD_NUM_6095, - .family = MV88E6XXX_FAMILY_6095, - .name = "Marvell 88E6095/88E6095F", - .num_databases = 256, - .num_ports = 11, - .flags = MV88E6XXX_FLAGS_FAMILY_6095, - }, - - [MV88E6123] = { - .prod_num = PORT_SWITCH_ID_PROD_NUM_6123, - .family = MV88E6XXX_FAMILY_6165, - .name = "Marvell 88E6123", - .num_databases = 4096, - .num_ports = 3, - .flags = MV88E6XXX_FLAGS_FAMILY_6165, - }, - - [MV88E6131] = { - .prod_num = PORT_SWITCH_ID_PROD_NUM_6131, - .family = MV88E6XXX_FAMILY_6185, - .name = "Marvell 88E6131", - .num_databases = 256, - .num_ports = 8, - .flags = MV88E6XXX_FLAGS_FAMILY_6185, - }, - - [MV88E6161] = { - .prod_num = PORT_SWITCH_ID_PROD_NUM_6161, - .family = MV88E6XXX_FAMILY_6165, - .name = "Marvell 88E6161", - .num_databases = 4096, - .num_ports = 6, - .flags = MV88E6XXX_FLAGS_FAMILY_6165, - }, - - [MV88E6165] = { - .prod_num = PORT_SWITCH_ID_PROD_NUM_6165, - .family = MV88E6XXX_FAMILY_6165, - .name = "Marvell 88E6165", - .num_databases = 4096, - .num_ports = 6, - .flags = MV88E6XXX_FLAGS_FAMILY_6165, - }, - - [MV88E6171] = { - .prod_num = PORT_SWITCH_ID_PROD_NUM_6171, - .family = MV88E6XXX_FAMILY_6351, - .name = "Marvell 88E6171", - .num_databases = 4096, - .num_ports = 7, - .flags = MV88E6XXX_FLAGS_FAMILY_6351, - }, - - [MV88E6172] = { - .prod_num = PORT_SWITCH_ID_PROD_NUM_6172, - .family = MV88E6XXX_FAMILY_6352, - .name = "Marvell 88E6172", - .num_databases = 4096, - .num_ports = 7, - .flags = MV88E6XXX_FLAGS_FAMILY_6352, - }, - - [MV88E6175] = { - .prod_num = PORT_SWITCH_ID_PROD_NUM_6175, - .family = MV88E6XXX_FAMILY_6351, - .name = "Marvell 88E6175", - .num_databases = 4096, - .num_ports = 7, - .flags = MV88E6XXX_FLAGS_FAMILY_6351, - }, - - [MV88E6176] = { - .prod_num = PORT_SWITCH_ID_PROD_NUM_6176, - .family = MV88E6XXX_FAMILY_6352, - .name = "Marvell 88E6176", - .num_databases = 4096, - .num_ports = 7, - .flags = MV88E6XXX_FLAGS_FAMILY_6352, - }, - - [MV88E6185] = { - .prod_num = PORT_SWITCH_ID_PROD_NUM_6185, - .family = MV88E6XXX_FAMILY_6185, - .name = "Marvell 88E6185", - .num_databases = 256, - .num_ports = 10, - .flags = MV88E6XXX_FLAGS_FAMILY_6185, - }, - - [MV88E6240] = { - .prod_num = PORT_SWITCH_ID_PROD_NUM_6240, - .family = MV88E6XXX_FAMILY_6352, - .name = "Marvell 88E6240", - .num_databases = 4096, - .num_ports = 7, - .flags = MV88E6XXX_FLAGS_FAMILY_6352, - }, - - [MV88E6320] = { - .prod_num = PORT_SWITCH_ID_PROD_NUM_6320, - .family = MV88E6XXX_FAMILY_6320, - .name = "Marvell 88E6320", - .num_databases = 4096, - .num_ports = 7, - .flags = MV88E6XXX_FLAGS_FAMILY_6320, - }, - - [MV88E6321] = { - .prod_num = PORT_SWITCH_ID_PROD_NUM_6321, - .family = MV88E6XXX_FAMILY_6320, - .name = "Marvell 88E6321", - .num_databases = 4096, - .num_ports = 7, - .flags = MV88E6XXX_FLAGS_FAMILY_6320, - }, - - [MV88E6350] = { - .prod_num = PORT_SWITCH_ID_PROD_NUM_6350, - .family = MV88E6XXX_FAMILY_6351, - .name = "Marvell 88E6350", - .num_databases = 4096, - .num_ports = 7, - .flags = MV88E6XXX_FLAGS_FAMILY_6351, - }, - - [MV88E6351] = { - .prod_num = PORT_SWITCH_ID_PROD_NUM_6351, - .family = MV88E6XXX_FAMILY_6351, - .name = "Marvell 88E6351", - .num_databases = 4096, - .num_ports = 7, - .flags = MV88E6XXX_FLAGS_FAMILY_6351, - }, - - [MV88E6352] = { - .prod_num = PORT_SWITCH_ID_PROD_NUM_6352, - .family = MV88E6XXX_FAMILY_6352, - .name = "Marvell 88E6352", - .num_databases = 4096, - .num_ports = 7, - .flags = MV88E6XXX_FLAGS_FAMILY_6352, - }, -}; - -static const struct mv88e6xxx_info * -mv88e6xxx_lookup_info(unsigned int prod_num, const struct mv88e6xxx_info *table, - unsigned int num) -{ - int i; - - for (i = 0; i < num; ++i) - if (table[i].prod_num == prod_num) - return &table[i]; - - return NULL; -} - -static const char *mv88e6xxx_drv_probe(struct device *dsa_dev, - struct device *host_dev, int sw_addr, - void **priv) -{ - const struct mv88e6xxx_info *info; - struct mv88e6xxx_priv_state *ps; - struct mii_bus *bus; - const char *name; - int id, prod_num, rev; - - bus = dsa_host_dev_to_mii_bus(host_dev); - if (!bus) - return NULL; - - id = __mv88e6xxx_reg_read(bus, sw_addr, REG_PORT(0), PORT_SWITCH_ID); - if (id < 0) - return NULL; - - prod_num = (id & 0xfff0) >> 4; - rev = id & 0x000f; - - info = mv88e6xxx_lookup_info(prod_num, mv88e6xxx_table, - ARRAY_SIZE(mv88e6xxx_table)); - if (!info) - return NULL; - - name = info->name; - - ps = devm_kzalloc(dsa_dev, sizeof(*ps), GFP_KERNEL); - if (!ps) - return NULL; - - ps->bus = bus; - ps->sw_addr = sw_addr; - ps->info = info; - mutex_init(&ps->smi_mutex); - - *priv = ps; - - dev_info(&ps->bus->dev, "switch 0x%x probed: %s, revision %u\n", - prod_num, name, rev); - - return name; -} - -struct dsa_switch_driver mv88e6xxx_switch_driver = { - .tag_protocol = DSA_TAG_PROTO_EDSA, - .probe = mv88e6xxx_drv_probe, - .setup = mv88e6xxx_setup, - .set_addr = mv88e6xxx_set_addr, - .phy_read = mv88e6xxx_phy_read, - .phy_write = mv88e6xxx_phy_write, - .adjust_link = mv88e6xxx_adjust_link, - .get_strings = mv88e6xxx_get_strings, - .get_ethtool_stats = mv88e6xxx_get_ethtool_stats, - .get_sset_count = mv88e6xxx_get_sset_count, - .set_eee = mv88e6xxx_set_eee, - .get_eee = mv88e6xxx_get_eee, -#ifdef CONFIG_NET_DSA_HWMON - .get_temp = mv88e6xxx_get_temp, - .get_temp_limit = mv88e6xxx_get_temp_limit, - .set_temp_limit = mv88e6xxx_set_temp_limit, - .get_temp_alarm = mv88e6xxx_get_temp_alarm, -#endif - .get_eeprom_len = mv88e6xxx_get_eeprom_len, - .get_eeprom = mv88e6xxx_get_eeprom, - .set_eeprom = mv88e6xxx_set_eeprom, - .get_regs_len = mv88e6xxx_get_regs_len, - .get_regs = mv88e6xxx_get_regs, - .port_bridge_join = mv88e6xxx_port_bridge_join, - .port_bridge_leave = mv88e6xxx_port_bridge_leave, - .port_stp_state_set = mv88e6xxx_port_stp_state_set, - .port_vlan_filtering = mv88e6xxx_port_vlan_filtering, - .port_vlan_prepare = mv88e6xxx_port_vlan_prepare, - .port_vlan_add = mv88e6xxx_port_vlan_add, - .port_vlan_del = mv88e6xxx_port_vlan_del, - .port_vlan_dump = mv88e6xxx_port_vlan_dump, - .port_fdb_prepare = mv88e6xxx_port_fdb_prepare, - .port_fdb_add = mv88e6xxx_port_fdb_add, - .port_fdb_del = mv88e6xxx_port_fdb_del, - .port_fdb_dump = mv88e6xxx_port_fdb_dump, -}; - -int mv88e6xxx_probe(struct mdio_device *mdiodev) -{ - struct device *dev = &mdiodev->dev; - struct device_node *np = dev->of_node; - struct mv88e6xxx_priv_state *ps; - int id, prod_num, rev; - struct dsa_switch *ds; - u32 eeprom_len; - int err; - - ds = devm_kzalloc(dev, sizeof(*ds) + sizeof(*ps), GFP_KERNEL); - if (!ds) - return -ENOMEM; - - ps = (struct mv88e6xxx_priv_state *)(ds + 1); - ds->priv = ps; - ds->dev = dev; - ps->dev = dev; - ps->ds = ds; - ps->bus = mdiodev->bus; - ps->sw_addr = mdiodev->addr; - mutex_init(&ps->smi_mutex); - - get_device(&ps->bus->dev); - - ds->drv = &mv88e6xxx_switch_driver; - - id = mv88e6xxx_reg_read(ps, REG_PORT(0), PORT_SWITCH_ID); - if (id < 0) - return id; - - prod_num = (id & 0xfff0) >> 4; - rev = id & 0x000f; - - ps->info = mv88e6xxx_lookup_info(prod_num, mv88e6xxx_table, - ARRAY_SIZE(mv88e6xxx_table)); - if (!ps->info) - return -ENODEV; - - ps->reset = devm_gpiod_get(&mdiodev->dev, "reset", GPIOD_ASIS); - if (IS_ERR(ps->reset)) { - err = PTR_ERR(ps->reset); - if (err == -ENOENT) { - /* Optional, so not an error */ - ps->reset = NULL; - } else { - return err; - } - } - - if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_EEPROM) && - !of_property_read_u32(np, "eeprom-length", &eeprom_len)) - ps->eeprom_len = eeprom_len; - - dev_set_drvdata(dev, ds); - - dev_info(dev, "switch 0x%x probed: %s, revision %u\n", - prod_num, ps->info->name, rev); - - return 0; -} - -static void mv88e6xxx_remove(struct mdio_device *mdiodev) -{ - struct dsa_switch *ds = dev_get_drvdata(&mdiodev->dev); - struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); - - put_device(&ps->bus->dev); -} - -static const struct of_device_id mv88e6xxx_of_match[] = { - { .compatible = "marvell,mv88e6085" }, - { /* sentinel */ }, -}; - -MODULE_DEVICE_TABLE(of, mv88e6xxx_of_match); - -static struct mdio_driver mv88e6xxx_driver = { - .probe = mv88e6xxx_probe, - .remove = mv88e6xxx_remove, - .mdiodrv.driver = { - .name = "mv88e6085", - .of_match_table = mv88e6xxx_of_match, - }, -}; - -static int __init mv88e6xxx_init(void) -{ - register_switch_driver(&mv88e6xxx_switch_driver); - return mdio_driver_register(&mv88e6xxx_driver); -} -module_init(mv88e6xxx_init); - -static void __exit mv88e6xxx_cleanup(void) -{ - mdio_driver_unregister(&mv88e6xxx_driver); - unregister_switch_driver(&mv88e6xxx_switch_driver); -} -module_exit(mv88e6xxx_cleanup); - -MODULE_AUTHOR("Lennert Buytenhek <buytenh@wantstofly.org>"); -MODULE_DESCRIPTION("Driver for Marvell 88E6XXX ethernet switch chips"); -MODULE_LICENSE("GPL"); |