X-Git-Url: http://git.openwrt.org/?p=openwrt%2Fopenwrt.git;a=blobdiff_plain;f=target%2Flinux%2Fgeneric%2Ffiles%2Fdrivers%2Fnet%2Fphy%2Far8216.c;h=6869e1ff191cbba219a7719fedd94cbc1b8595e4;hp=1d77341a8ac5c6772ea45703e22ec9f1502ee1d2;hb=e61812fd346c43edbb16e87e61ff1a2110ca8eeb;hpb=451dd745bdb7cec29a0363d4af558eda7edfef55 diff --git a/target/linux/generic/files/drivers/net/phy/ar8216.c b/target/linux/generic/files/drivers/net/phy/ar8216.c index 1d77341a8a..6869e1ff19 100644 --- a/target/linux/generic/files/drivers/net/phy/ar8216.c +++ b/target/linux/generic/files/drivers/net/phy/ar8216.c @@ -1,7 +1,7 @@ /* * ar8216.c: AR8216 switch driver * - * Copyright (C) 2009 Felix Fietkau + * Copyright (C) 2009 Felix Fietkau * Copyright (C) 2011-2012 Gabor Juhos * * This program is free software; you can redistribute it and/or @@ -33,85 +33,15 @@ #include #include #include +#include + #include "ar8216.h" -/* size of the vlan table */ -#define AR8X16_MAX_VLANS 128 -#define AR8X16_PROBE_RETRIES 10 -#define AR8X16_MAX_PORTS 8 +extern const struct ar8xxx_chip ar8327_chip; +extern const struct ar8xxx_chip ar8337_chip; #define AR8XXX_MIB_WORK_DELAY 2000 /* msecs */ -struct ar8xxx_priv; - -#define AR8XXX_CAP_GIGE BIT(0) -#define AR8XXX_CAP_MIB_COUNTERS BIT(1) - -enum { - AR8XXX_VER_AR8216 = 0x01, - AR8XXX_VER_AR8236 = 0x03, - AR8XXX_VER_AR8316 = 0x10, - AR8XXX_VER_AR8327 = 0x12, -}; - -struct ar8xxx_mib_desc { - unsigned int size; - unsigned int offset; - const char *name; -}; - -struct ar8xxx_chip { - unsigned long caps; - - int (*hw_init)(struct ar8xxx_priv *priv); - void (*init_globals)(struct ar8xxx_priv *priv); - void (*init_port)(struct ar8xxx_priv *priv, int port); - void (*setup_port)(struct ar8xxx_priv *priv, int port, u32 egress, - u32 ingress, u32 members, u32 pvid); - u32 (*read_port_status)(struct ar8xxx_priv *priv, int port); - int (*atu_flush)(struct ar8xxx_priv *priv); - void (*vtu_flush)(struct ar8xxx_priv *priv); - void (*vtu_load_vlan)(struct ar8xxx_priv *priv, u32 vid, u32 port_mask); - - const struct ar8xxx_mib_desc *mib_decs; - unsigned num_mibs; -}; - -struct ar8xxx_priv { - struct switch_dev dev; - struct mii_bus *mii_bus; - struct phy_device *phy; - u32 (*read)(struct ar8xxx_priv *priv, int reg); - void (*write)(struct ar8xxx_priv *priv, int reg, u32 val); - const struct net_device_ops *ndo_old; - struct net_device_ops ndo; - struct mutex reg_mutex; - u8 chip_ver; - u8 chip_rev; - const struct ar8xxx_chip *chip; - bool initialized; - bool port4_phy; - char buf[2048]; - - bool init; - bool mii_lo_first; - - struct mutex mib_lock; - struct delayed_work mib_work; - int mib_next_port; - u64 *mib_stats; - - struct list_head list; - unsigned int use_count; - - /* all fields below are cleared on reset */ - bool vlan; - u16 vlan_id[AR8X16_MAX_VLANS]; - u8 vlan_table[AR8X16_MAX_VLANS]; - u8 vlan_tagged; - u16 pvid[AR8X16_MAX_PORTS]; -}; - #define MIB_DESC(_s , _o, _n) \ { \ .size = (_s), \ @@ -159,7 +89,7 @@ static const struct ar8xxx_mib_desc ar8216_mibs[] = { MIB_DESC(1, AR8216_STATS_TXLATECOL, "TxLateCol"), }; -static const struct ar8xxx_mib_desc ar8236_mibs[] = { +const struct ar8xxx_mib_desc ar8236_mibs[39] = { MIB_DESC(1, AR8236_STATS_RXBROAD, "RxBroad"), MIB_DESC(1, AR8236_STATS_RXPAUSE, "RxPause"), MIB_DESC(1, AR8236_STATS_RXMULTI, "RxMulti"), @@ -204,103 +134,169 @@ static const struct ar8xxx_mib_desc ar8236_mibs[] = { static DEFINE_MUTEX(ar8xxx_dev_list_lock); static LIST_HEAD(ar8xxx_dev_list); -static inline struct ar8xxx_priv * -swdev_to_ar8xxx(struct switch_dev *swdev) -{ - return container_of(swdev, struct ar8xxx_priv, dev); +/* inspired by phy_poll_reset in drivers/net/phy/phy_device.c */ +static int +ar8xxx_phy_poll_reset(struct mii_bus *bus) +{ + unsigned int sleep_msecs = 20; + int ret, elapsed, i; + + for (elapsed = sleep_msecs; elapsed <= 600; + elapsed += sleep_msecs) { + msleep(sleep_msecs); + for (i = 0; i < AR8XXX_NUM_PHYS; i++) { + ret = mdiobus_read(bus, i, MII_BMCR); + if (ret < 0) + return ret; + if (ret & BMCR_RESET) + break; + if (i == AR8XXX_NUM_PHYS - 1) { + usleep_range(1000, 2000); + return 0; + } + } + } + return -ETIMEDOUT; } -static inline bool ar8xxx_has_gige(struct ar8xxx_priv *priv) +static int +ar8xxx_phy_check_aneg(struct phy_device *phydev) { - return priv->chip->caps & AR8XXX_CAP_GIGE; -} + int ret; -static inline bool ar8xxx_has_mib_counters(struct ar8xxx_priv *priv) -{ - return priv->chip->caps & AR8XXX_CAP_MIB_COUNTERS; -} + if (phydev->autoneg != AUTONEG_ENABLE) + return 0; + /* + * BMCR_ANENABLE might have been cleared + * by phy_init_hw in certain kernel versions + * therefore check for it + */ + ret = phy_read(phydev, MII_BMCR); + if (ret < 0) + return ret; + if (ret & BMCR_ANENABLE) + return 0; -static inline bool chip_is_ar8216(struct ar8xxx_priv *priv) -{ - return priv->chip_ver == AR8XXX_VER_AR8216; + dev_info(&phydev->mdio.dev, "ANEG disabled, re-enabling ...\n"); + ret |= BMCR_ANENABLE | BMCR_ANRESTART; + return phy_write(phydev, MII_BMCR, ret); } -static inline bool chip_is_ar8236(struct ar8xxx_priv *priv) +void +ar8xxx_phy_init(struct ar8xxx_priv *priv) { - return priv->chip_ver == AR8XXX_VER_AR8236; + int i; + struct mii_bus *bus; + + bus = priv->mii_bus; + for (i = 0; i < AR8XXX_NUM_PHYS; i++) { + if (priv->chip->phy_fixup) + priv->chip->phy_fixup(priv, i); + + /* initialize the port itself */ + mdiobus_write(bus, i, MII_ADVERTISE, + ADVERTISE_ALL | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); + if (ar8xxx_has_gige(priv)) + mdiobus_write(bus, i, MII_CTRL1000, ADVERTISE_1000FULL); + mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE); + } + + ar8xxx_phy_poll_reset(bus); } -static inline bool chip_is_ar8316(struct ar8xxx_priv *priv) +u32 +ar8xxx_mii_read32(struct ar8xxx_priv *priv, int phy_id, int regnum) { - return priv->chip_ver == AR8XXX_VER_AR8316; + struct mii_bus *bus = priv->mii_bus; + u16 lo, hi; + + lo = bus->read(bus, phy_id, regnum); + hi = bus->read(bus, phy_id, regnum + 1); + + return (hi << 16) | lo; } -static inline bool chip_is_ar8327(struct ar8xxx_priv *priv) +void +ar8xxx_mii_write32(struct ar8xxx_priv *priv, int phy_id, int regnum, u32 val) { - return priv->chip_ver == AR8XXX_VER_AR8327; + struct mii_bus *bus = priv->mii_bus; + u16 lo, hi; + + lo = val & 0xffff; + hi = (u16) (val >> 16); + + if (priv->chip->mii_lo_first) + { + bus->write(bus, phy_id, regnum, lo); + bus->write(bus, phy_id, regnum + 1, hi); + } else { + bus->write(bus, phy_id, regnum + 1, hi); + bus->write(bus, phy_id, regnum, lo); + } } -static inline void -split_addr(u32 regaddr, u16 *r1, u16 *r2, u16 *page) +u32 +ar8xxx_read(struct ar8xxx_priv *priv, int reg) { - regaddr >>= 1; - *r1 = regaddr & 0x1e; + struct mii_bus *bus = priv->mii_bus; + u16 r1, r2, page; + u32 val; + + split_addr((u32) reg, &r1, &r2, &page); + + mutex_lock(&bus->mdio_lock); + + bus->write(bus, 0x18, 0, page); + wait_for_page_switch(); + val = ar8xxx_mii_read32(priv, 0x10 | r2, r1); - regaddr >>= 5; - *r2 = regaddr & 0x7; + mutex_unlock(&bus->mdio_lock); - regaddr >>= 3; - *page = regaddr & 0x1ff; + return val; } -static u32 -ar8xxx_mii_read(struct ar8xxx_priv *priv, int reg) +void +ar8xxx_write(struct ar8xxx_priv *priv, int reg, u32 val) { struct mii_bus *bus = priv->mii_bus; u16 r1, r2, page; - u16 lo, hi; split_addr((u32) reg, &r1, &r2, &page); mutex_lock(&bus->mdio_lock); bus->write(bus, 0x18, 0, page); - usleep_range(1000, 2000); /* wait for the page switch to propagate */ - lo = bus->read(bus, 0x10 | r2, r1); - hi = bus->read(bus, 0x10 | r2, r1 + 1); + wait_for_page_switch(); + ar8xxx_mii_write32(priv, 0x10 | r2, r1, val); mutex_unlock(&bus->mdio_lock); - - return (hi << 16) | lo; } -static void -ar8xxx_mii_write(struct ar8xxx_priv *priv, int reg, u32 val) +u32 +ar8xxx_rmw(struct ar8xxx_priv *priv, int reg, u32 mask, u32 val) { struct mii_bus *bus = priv->mii_bus; - u16 r1, r2, r3; - u16 lo, hi; + u16 r1, r2, page; + u32 ret; - split_addr((u32) reg, &r1, &r2, &r3); - lo = val & 0xffff; - hi = (u16) (val >> 16); + split_addr((u32) reg, &r1, &r2, &page); mutex_lock(&bus->mdio_lock); - bus->write(bus, 0x18, 0, r3); - usleep_range(1000, 2000); /* wait for the page switch to propagate */ - if (priv->mii_lo_first) { - bus->write(bus, 0x10 | r2, r1, lo); - bus->write(bus, 0x10 | r2, r1 + 1, hi); - } else { - bus->write(bus, 0x10 | r2, r1 + 1, hi); - bus->write(bus, 0x10 | r2, r1, lo); - } + bus->write(bus, 0x18, 0, page); + wait_for_page_switch(); + + ret = ar8xxx_mii_read32(priv, 0x10 | r2, r1); + ret &= ~mask; + ret |= val; + ar8xxx_mii_write32(priv, 0x10 | r2, r1, ret); mutex_unlock(&bus->mdio_lock); + + return ret; } -static void +void ar8xxx_phy_dbg_write(struct ar8xxx_priv *priv, int phy_addr, u16 dbg_addr, u16 dbg_data) { @@ -312,42 +308,37 @@ ar8xxx_phy_dbg_write(struct ar8xxx_priv *priv, int phy_addr, mutex_unlock(&bus->mdio_lock); } -static void -ar8xxx_phy_mmd_write(struct ar8xxx_priv *priv, int phy_addr, u16 addr, u16 data) +static inline void +ar8xxx_phy_mmd_prep(struct mii_bus *bus, int phy_addr, u16 addr, u16 reg) { - struct mii_bus *bus = priv->mii_bus; - - mutex_lock(&bus->mdio_lock); bus->write(bus, phy_addr, MII_ATH_MMD_ADDR, addr); - bus->write(bus, phy_addr, MII_ATH_MMD_DATA, data); - mutex_unlock(&bus->mdio_lock); + bus->write(bus, phy_addr, MII_ATH_MMD_DATA, reg); + bus->write(bus, phy_addr, MII_ATH_MMD_ADDR, addr | 0x4000); } -static u32 -ar8xxx_rmw(struct ar8xxx_priv *priv, int reg, u32 mask, u32 val) +void +ar8xxx_phy_mmd_write(struct ar8xxx_priv *priv, int phy_addr, u16 addr, u16 reg, u16 data) { - u32 v; - - lockdep_assert_held(&priv->reg_mutex); - - v = priv->read(priv, reg); - v &= ~mask; - v |= val; - priv->write(priv, reg, v); + struct mii_bus *bus = priv->mii_bus; - return v; + mutex_lock(&bus->mdio_lock); + ar8xxx_phy_mmd_prep(bus, phy_addr, addr, reg); + bus->write(bus, phy_addr, MII_ATH_MMD_DATA, data); + mutex_unlock(&bus->mdio_lock); } -static inline void -ar8xxx_reg_set(struct ar8xxx_priv *priv, int reg, u32 val) +u16 +ar8xxx_phy_mmd_read(struct ar8xxx_priv *priv, int phy_addr, u16 addr, u16 reg) { - u32 v; + struct mii_bus *bus = priv->mii_bus; + u16 data; - lockdep_assert_held(&priv->reg_mutex); + mutex_lock(&bus->mdio_lock); + ar8xxx_phy_mmd_prep(bus, phy_addr, addr, reg); + data = bus->read(bus, phy_addr, MII_ATH_MMD_DATA); + mutex_unlock(&bus->mdio_lock); - v = priv->read(priv, reg); - v |= val; - priv->write(priv, reg, v); + return data; } static int @@ -359,11 +350,12 @@ ar8xxx_reg_wait(struct ar8xxx_priv *priv, u32 reg, u32 mask, u32 val, for (i = 0; i < timeout; i++) { u32 t; - t = priv->read(priv, reg); + t = ar8xxx_read(priv, reg); if ((t & mask) == val) return 0; usleep_range(1000, 2000); + cond_resched(); } return -ETIMEDOUT; @@ -372,20 +364,13 @@ ar8xxx_reg_wait(struct ar8xxx_priv *priv, u32 reg, u32 mask, u32 val, static int ar8xxx_mib_op(struct ar8xxx_priv *priv, u32 op) { - unsigned mib_func; + unsigned mib_func = priv->chip->mib_func; int ret; lockdep_assert_held(&priv->mib_lock); - if (chip_is_ar8327(priv)) - mib_func = AR8327_REG_MIB_FUNC; - else - mib_func = AR8216_REG_MIB_FUNC; - - mutex_lock(&priv->reg_mutex); /* Capture the hardware statistics for all ports */ ar8xxx_rmw(priv, mib_func, AR8216_MIB_FUNC, (op << AR8216_MIB_FUNC_S)); - mutex_unlock(&priv->reg_mutex); /* Wait for the capturing to complete. */ ret = ar8xxx_reg_wait(priv, mib_func, AR8216_MIB_BUSY, 0, 10); @@ -421,13 +406,8 @@ ar8xxx_mib_fetch_port_stat(struct ar8xxx_priv *priv, int port, bool flush) lockdep_assert_held(&priv->mib_lock); - if (chip_is_ar8327(priv)) - base = AR8327_REG_PORT_STATS_BASE(port); - else if (chip_is_ar8236(priv) || - chip_is_ar8316(priv)) - base = AR8236_REG_PORT_STATS_BASE(port); - else - base = AR8216_REG_PORT_STATS_BASE(port); + base = priv->chip->reg_port_stats_start + + priv->chip->reg_port_stats_length * port; mib_stats = &priv->mib_stats[port * priv->chip->num_mibs]; for (i = 0; i < priv->chip->num_mibs; i++) { @@ -435,11 +415,11 @@ ar8xxx_mib_fetch_port_stat(struct ar8xxx_priv *priv, int port, bool flush) u64 t; mib = &priv->chip->mib_decs[i]; - t = priv->read(priv, base + mib->offset); + t = ar8xxx_read(priv, base + mib->offset); if (mib->size == 2) { u64 hi; - hi = priv->read(priv, base + mib->offset + 4); + hi = ar8xxx_read(priv, base + mib->offset + 4); t |= hi << 32; } @@ -447,6 +427,7 @@ ar8xxx_mib_fetch_port_stat(struct ar8xxx_priv *priv, int port, bool flush) mib_stats[i] = 0; else mib_stats[i] += t; + cond_resched(); } } @@ -464,16 +445,28 @@ ar8216_read_port_link(struct ar8xxx_priv *priv, int port, link->aneg = !!(status & AR8216_PORT_STATUS_LINK_AUTO); if (link->aneg) { link->link = !!(status & AR8216_PORT_STATUS_LINK_UP); - if (!link->link) - return; } else { link->link = true; + + if (priv->get_port_link) { + int err; + + err = priv->get_port_link(port); + if (err >= 0) + link->link = !!err; + } } + if (!link->link) + return; + link->duplex = !!(status & AR8216_PORT_STATUS_DUPLEX); link->tx_flow = !!(status & AR8216_PORT_STATUS_TXFLOW); link->rx_flow = !!(status & AR8216_PORT_STATUS_RXFLOW); + if (link->aneg && link->duplex && priv->chip->read_port_eee_status) + link->eee = priv->chip->read_port_eee_status(priv, port); + speed = (status & AR8216_PORT_STATUS_SPEED) >> AR8216_PORT_STATUS_SPEED_S; @@ -545,7 +538,7 @@ ar8216_mangle_rx(struct net_device *dev, struct sk_buff *skb) if ((buf[12 + 2] != 0x81) || (buf[13 + 2] != 0x00)) return; - port = buf[0] & 0xf; + port = buf[0] & 0x7; /* no need to fix up packets coming from a tagged source */ if (priv->vlan_tagged & (1 << port)) @@ -559,14 +552,14 @@ ar8216_mangle_rx(struct net_device *dev, struct sk_buff *skb) buf[15 + 2] = vlan & 0xff; } -static int +int ar8216_wait_bit(struct ar8xxx_priv *priv, int reg, u32 mask, u32 val) { int timeout = 20; u32 t = 0; while (1) { - t = priv->read(priv, reg); + t = ar8xxx_read(priv, reg); if ((t & mask) == val) return 0; @@ -574,6 +567,7 @@ ar8216_wait_bit(struct ar8xxx_priv *priv, int reg, u32 mask, u32 val) break; udelay(10); + cond_resched(); } pr_err("ar8216: timeout on reg %08x: %08x & %08x != %08x\n", @@ -589,10 +583,10 @@ ar8216_vtu_op(struct ar8xxx_priv *priv, u32 op, u32 val) if ((op & AR8216_VTU_OP) == AR8216_VTU_OP_LOAD) { val &= AR8216_VTUDATA_MEMBER; val |= AR8216_VTUDATA_VALID; - priv->write(priv, AR8216_REG_VTU_DATA, val); + ar8xxx_write(priv, AR8216_REG_VTU_DATA, val); } op |= AR8216_VTU_ACTIVE; - priv->write(priv, AR8216_REG_VTU, op); + ar8xxx_write(priv, AR8216_REG_VTU, op); } static void @@ -615,9 +609,26 @@ ar8216_atu_flush(struct ar8xxx_priv *priv) { int ret; - ret = ar8216_wait_bit(priv, AR8216_REG_ATU, AR8216_ATU_ACTIVE, 0); + ret = ar8216_wait_bit(priv, AR8216_REG_ATU_FUNC0, AR8216_ATU_ACTIVE, 0); if (!ret) - priv->write(priv, AR8216_REG_ATU, AR8216_ATU_OP_FLUSH); + ar8xxx_write(priv, AR8216_REG_ATU_FUNC0, AR8216_ATU_OP_FLUSH | + AR8216_ATU_ACTIVE); + + return ret; +} + +static int +ar8216_atu_flush_port(struct ar8xxx_priv *priv, int port) +{ + u32 t; + int ret; + + ret = ar8216_wait_bit(priv, AR8216_REG_ATU_FUNC0, AR8216_ATU_ACTIVE, 0); + if (!ret) { + t = (port << AR8216_ATU_PORT_NUM_S) | AR8216_ATU_OP_FLUSH_PORT; + t |= AR8216_ATU_ACTIVE; + ar8xxx_write(priv, AR8216_REG_ATU_FUNC0, t); + } return ret; } @@ -625,14 +636,28 @@ ar8216_atu_flush(struct ar8xxx_priv *priv) static u32 ar8216_read_port_status(struct ar8xxx_priv *priv, int port) { - return priv->read(priv, AR8216_REG_PORT_STATUS(port)); + return ar8xxx_read(priv, AR8216_REG_PORT_STATUS(port)); } static void -ar8216_setup_port(struct ar8xxx_priv *priv, int port, u32 egress, u32 ingress, - u32 members, u32 pvid) +ar8216_setup_port(struct ar8xxx_priv *priv, int port, u32 members) { u32 header; + u32 egress, ingress; + u32 pvid; + + if (priv->vlan) { + pvid = priv->vlan_id[priv->pvid[port]]; + if (priv->vlan_tagged & (1 << port)) + egress = AR8216_OUT_ADD_VLAN; + else + egress = AR8216_OUT_STRIP_VLAN; + ingress = AR8216_IN_SECURE; + } else { + pvid = port; + egress = AR8216_OUT_KEEP; + ingress = AR8216_IN_PORT_ONLY; + } if (chip_is_ar8216(priv) && priv->vlan && port == AR8216_PORT_CPU) header = AR8216_PORT_CTRL_HEADER; @@ -658,6 +683,12 @@ ar8216_setup_port(struct ar8xxx_priv *priv, int port, u32 egress, u32 ingress, static int ar8216_hw_init(struct ar8xxx_priv *priv) { + if (priv->initialized) + return 0; + + ar8xxx_phy_init(priv); + + priv->initialized = true; return 0; } @@ -665,7 +696,7 @@ static void ar8216_init_globals(struct ar8xxx_priv *priv) { /* standard atheros magic */ - priv->write(priv, 0x38, 0xc000050e); + ar8xxx_write(priv, 0x38, 0xc000050e); ar8xxx_rmw(priv, AR8216_REG_GLOBAL_CTRL, AR8216_GCTRL_MTU, 1518 + 8 + 2); @@ -675,14 +706,14 @@ static void ar8216_init_port(struct ar8xxx_priv *priv, int port) { /* Enable port learning and tx */ - priv->write(priv, AR8216_REG_PORT_CTRL(port), + ar8xxx_write(priv, AR8216_REG_PORT_CTRL(port), AR8216_PORT_CTRL_LEARN | (4 << AR8216_PORT_CTRL_STATE_S)); - priv->write(priv, AR8216_REG_PORT_VLAN(port), 0); + ar8xxx_write(priv, AR8216_REG_PORT_VLAN(port), 0); if (port == AR8216_PORT_CPU) { - priv->write(priv, AR8216_REG_PORT_STATUS(port), + ar8xxx_write(priv, AR8216_REG_PORT_STATUS(port), AR8216_PORT_STATUS_LINK_UP | (ar8xxx_has_gige(priv) ? AR8216_PORT_SPEED_1000M : AR8216_PORT_SPEED_100M) | @@ -692,31 +723,103 @@ ar8216_init_port(struct ar8xxx_priv *priv, int port) (chip_is_ar8316(priv) ? AR8216_PORT_STATUS_TXFLOW : 0) | AR8216_PORT_STATUS_DUPLEX); } else { - priv->write(priv, AR8216_REG_PORT_STATUS(port), + ar8xxx_write(priv, AR8216_REG_PORT_STATUS(port), AR8216_PORT_STATUS_LINK_AUTO); } } -static const struct ar8xxx_chip ar8216_chip = { - .caps = AR8XXX_CAP_MIB_COUNTERS, +static void +ar8216_wait_atu_ready(struct ar8xxx_priv *priv, u16 r2, u16 r1) +{ + int timeout = 20; - .hw_init = ar8216_hw_init, - .init_globals = ar8216_init_globals, - .init_port = ar8216_init_port, - .setup_port = ar8216_setup_port, - .read_port_status = ar8216_read_port_status, - .atu_flush = ar8216_atu_flush, - .vtu_flush = ar8216_vtu_flush, - .vtu_load_vlan = ar8216_vtu_load_vlan, + while (ar8xxx_mii_read32(priv, r2, r1) & AR8216_ATU_ACTIVE && --timeout) { + udelay(10); + cond_resched(); + } - .num_mibs = ARRAY_SIZE(ar8216_mibs), - .mib_decs = ar8216_mibs, -}; + if (!timeout) + pr_err("ar8216: timeout waiting for atu to become ready\n"); +} + +static void ar8216_get_arl_entry(struct ar8xxx_priv *priv, + struct arl_entry *a, u32 *status, enum arl_op op) +{ + struct mii_bus *bus = priv->mii_bus; + u16 r2, page; + u16 r1_func0, r1_func1, r1_func2; + u32 t, val0, val1, val2; + int i; + + split_addr(AR8216_REG_ATU_FUNC0, &r1_func0, &r2, &page); + r2 |= 0x10; + + r1_func1 = (AR8216_REG_ATU_FUNC1 >> 1) & 0x1e; + r1_func2 = (AR8216_REG_ATU_FUNC2 >> 1) & 0x1e; + + switch (op) { + case AR8XXX_ARL_INITIALIZE: + /* all ATU registers are on the same page + * therefore set page only once + */ + bus->write(bus, 0x18, 0, page); + wait_for_page_switch(); + + ar8216_wait_atu_ready(priv, r2, r1_func0); + + ar8xxx_mii_write32(priv, r2, r1_func0, AR8216_ATU_OP_GET_NEXT); + ar8xxx_mii_write32(priv, r2, r1_func1, 0); + ar8xxx_mii_write32(priv, r2, r1_func2, 0); + break; + case AR8XXX_ARL_GET_NEXT: + t = ar8xxx_mii_read32(priv, r2, r1_func0); + t |= AR8216_ATU_ACTIVE; + ar8xxx_mii_write32(priv, r2, r1_func0, t); + ar8216_wait_atu_ready(priv, r2, r1_func0); + + val0 = ar8xxx_mii_read32(priv, r2, r1_func0); + val1 = ar8xxx_mii_read32(priv, r2, r1_func1); + val2 = ar8xxx_mii_read32(priv, r2, r1_func2); + + *status = (val2 & AR8216_ATU_STATUS) >> AR8216_ATU_STATUS_S; + if (!*status) + break; + + i = 0; + t = AR8216_ATU_PORT0; + while (!(val2 & t) && ++i < priv->dev.ports) + t <<= 1; + + a->port = i; + a->mac[0] = (val0 & AR8216_ATU_ADDR5) >> AR8216_ATU_ADDR5_S; + a->mac[1] = (val0 & AR8216_ATU_ADDR4) >> AR8216_ATU_ADDR4_S; + a->mac[2] = (val1 & AR8216_ATU_ADDR3) >> AR8216_ATU_ADDR3_S; + a->mac[3] = (val1 & AR8216_ATU_ADDR2) >> AR8216_ATU_ADDR2_S; + a->mac[4] = (val1 & AR8216_ATU_ADDR1) >> AR8216_ATU_ADDR1_S; + a->mac[5] = (val1 & AR8216_ATU_ADDR0) >> AR8216_ATU_ADDR0_S; + break; + } +} static void -ar8236_setup_port(struct ar8xxx_priv *priv, int port, u32 egress, u32 ingress, - u32 members, u32 pvid) +ar8236_setup_port(struct ar8xxx_priv *priv, int port, u32 members) { + u32 egress, ingress; + u32 pvid; + + if (priv->vlan) { + pvid = priv->vlan_id[priv->pvid[port]]; + if (priv->vlan_tagged & (1 << port)) + egress = AR8216_OUT_ADD_VLAN; + else + egress = AR8216_OUT_STRIP_VLAN; + ingress = AR8216_IN_SECURE; + } else { + pvid = port; + egress = AR8216_OUT_KEEP; + ingress = AR8216_IN_PORT_ONLY; + } + ar8xxx_rmw(priv, AR8216_REG_PORT_CTRL(port), AR8216_PORT_CTRL_LEARN | AR8216_PORT_CTRL_VLAN_MODE | AR8216_PORT_CTRL_SINGLE_VLAN | AR8216_PORT_CTRL_STATE | @@ -736,29 +839,6 @@ ar8236_setup_port(struct ar8xxx_priv *priv, int port, u32 egress, u32 ingress, (members << AR8236_PORT_VLAN2_MEMBER_S)); } -static int -ar8236_hw_init(struct ar8xxx_priv *priv) -{ - int i; - struct mii_bus *bus; - - if (priv->initialized) - return 0; - - /* Initialize the PHYs */ - bus = priv->mii_bus; - for (i = 0; i < 5; i++) { - mdiobus_write(bus, i, MII_ADVERTISE, - ADVERTISE_ALL | ADVERTISE_PAUSE_CAP | - ADVERTISE_PAUSE_ASYM); - mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE); - } - msleep(1000); - - priv->initialized = true; - return 0; -} - static void ar8236_init_globals(struct ar8xxx_priv *priv) { @@ -766,35 +846,26 @@ ar8236_init_globals(struct ar8xxx_priv *priv) ar8xxx_rmw(priv, AR8216_REG_GLOBAL_CTRL, AR8316_GCTRL_MTU, 9018 + 8 + 2); + /* enable cpu port to receive arp frames */ + ar8xxx_reg_set(priv, AR8216_REG_ATU_CTRL, + AR8236_ATU_CTRL_RES); + + /* enable cpu port to receive multicast and broadcast frames */ + ar8xxx_reg_set(priv, AR8216_REG_FLOOD_MASK, + AR8236_FM_CPU_BROADCAST_EN | AR8236_FM_CPU_BCAST_FWD_EN); + /* Enable MIB counters */ ar8xxx_rmw(priv, AR8216_REG_MIB_FUNC, AR8216_MIB_FUNC | AR8236_MIB_EN, (AR8216_MIB_FUNC_NO_OP << AR8216_MIB_FUNC_S) | AR8236_MIB_EN); } -static const struct ar8xxx_chip ar8236_chip = { - .caps = AR8XXX_CAP_MIB_COUNTERS, - .hw_init = ar8236_hw_init, - .init_globals = ar8236_init_globals, - .init_port = ar8216_init_port, - .setup_port = ar8236_setup_port, - .read_port_status = ar8216_read_port_status, - .atu_flush = ar8216_atu_flush, - .vtu_flush = ar8216_vtu_flush, - .vtu_load_vlan = ar8216_vtu_load_vlan, - - .num_mibs = ARRAY_SIZE(ar8236_mibs), - .mib_decs = ar8236_mibs, -}; - static int ar8316_hw_init(struct ar8xxx_priv *priv) { - int i; u32 val, newval; - struct mii_bus *bus; - val = priv->read(priv, AR8316_REG_POSTRIP); + val = ar8xxx_read(priv, AR8316_REG_POSTRIP); if (priv->phy->interface == PHY_INTERFACE_MODE_RGMII) { if (priv->port4_phy) { @@ -818,7 +889,7 @@ ar8316_hw_init(struct ar8xxx_priv *priv) if (val == newval) goto out; - priv->write(priv, AR8316_REG_POSTRIP, newval); + ar8xxx_write(priv, AR8316_REG_POSTRIP, newval); if (priv->port4_phy && priv->phy->interface == PHY_INTERFACE_MODE_RGMII) { @@ -831,17 +902,7 @@ ar8316_hw_init(struct ar8xxx_priv *priv) msleep(1000); } - /* Initialize the ports */ - bus = priv->mii_bus; - for (i = 0; i < 5; i++) { - /* initialize the port itself */ - mdiobus_write(bus, i, MII_ADVERTISE, - ADVERTISE_ALL | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); - mdiobus_write(bus, i, MII_CTRL1000, ADVERTISE_1000FULL); - mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE); - } - - msleep(1000); + ar8xxx_phy_init(priv); out: priv->initialized = true; @@ -852,10 +913,10 @@ static void ar8316_init_globals(struct ar8xxx_priv *priv) { /* standard atheros magic */ - priv->write(priv, 0x38, 0xc000050e); + ar8xxx_write(priv, 0x38, 0xc000050e); /* enable cpu port to receive multicast and broadcast frames */ - priv->write(priv, AR8216_REG_FLOOD_MASK, 0x003f003f); + ar8xxx_write(priv, AR8216_REG_FLOOD_MASK, 0x003f003f); /* enable jumbo frames */ ar8xxx_rmw(priv, AR8216_REG_GLOBAL_CTRL, @@ -867,442 +928,48 @@ ar8316_init_globals(struct ar8xxx_priv *priv) AR8236_MIB_EN); } -static const struct ar8xxx_chip ar8316_chip = { - .caps = AR8XXX_CAP_GIGE | AR8XXX_CAP_MIB_COUNTERS, - .hw_init = ar8316_hw_init, - .init_globals = ar8316_init_globals, - .init_port = ar8216_init_port, - .setup_port = ar8216_setup_port, - .read_port_status = ar8216_read_port_status, - .atu_flush = ar8216_atu_flush, - .vtu_flush = ar8216_vtu_flush, - .vtu_load_vlan = ar8216_vtu_load_vlan, - - .num_mibs = ARRAY_SIZE(ar8236_mibs), - .mib_decs = ar8236_mibs, -}; - -static u32 -ar8327_get_pad_cfg(struct ar8327_pad_cfg *cfg) +int +ar8xxx_sw_set_vlan(struct switch_dev *dev, const struct switch_attr *attr, + struct switch_val *val) { - u32 t; + struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + priv->vlan = !!val->value.i; + return 0; +} - if (!cfg) - return 0; +int +ar8xxx_sw_get_vlan(struct switch_dev *dev, const struct switch_attr *attr, + struct switch_val *val) +{ + struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + val->value.i = priv->vlan; + return 0; +} - t = 0; - switch (cfg->mode) { - case AR8327_PAD_NC: - break; - case AR8327_PAD_MAC2MAC_MII: - t = AR8327_PAD_MAC_MII_EN; - if (cfg->rxclk_sel) - t |= AR8327_PAD_MAC_MII_RXCLK_SEL; - if (cfg->txclk_sel) - t |= AR8327_PAD_MAC_MII_TXCLK_SEL; - break; +int +ar8xxx_sw_set_pvid(struct switch_dev *dev, int port, int vlan) +{ + struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); - case AR8327_PAD_MAC2MAC_GMII: - t = AR8327_PAD_MAC_GMII_EN; - if (cfg->rxclk_sel) - t |= AR8327_PAD_MAC_GMII_RXCLK_SEL; - if (cfg->txclk_sel) - t |= AR8327_PAD_MAC_GMII_TXCLK_SEL; - break; + /* make sure no invalid PVIDs get set */ - case AR8327_PAD_MAC_SGMII: - t = AR8327_PAD_SGMII_EN; + if (vlan < 0 || vlan >= dev->vlans || + port < 0 || port >= AR8X16_MAX_PORTS) + return -EINVAL; - /* - * WAR for the QUalcomm Atheros AP136 board. - * It seems that RGMII TX/RX delay settings needs to be - * applied for SGMII mode as well, The ethernet is not - * reliable without this. - */ - t |= cfg->txclk_delay_sel << AR8327_PAD_RGMII_TXCLK_DELAY_SEL_S; - t |= cfg->rxclk_delay_sel << AR8327_PAD_RGMII_RXCLK_DELAY_SEL_S; - if (cfg->rxclk_delay_en) - t |= AR8327_PAD_RGMII_RXCLK_DELAY_EN; - if (cfg->txclk_delay_en) - t |= AR8327_PAD_RGMII_TXCLK_DELAY_EN; - - if (cfg->sgmii_delay_en) - t |= AR8327_PAD_SGMII_DELAY_EN; - - break; - - case AR8327_PAD_MAC2PHY_MII: - t = AR8327_PAD_PHY_MII_EN; - if (cfg->rxclk_sel) - t |= AR8327_PAD_PHY_MII_RXCLK_SEL; - if (cfg->txclk_sel) - t |= AR8327_PAD_PHY_MII_TXCLK_SEL; - break; - - case AR8327_PAD_MAC2PHY_GMII: - t = AR8327_PAD_PHY_GMII_EN; - if (cfg->pipe_rxclk_sel) - t |= AR8327_PAD_PHY_GMII_PIPE_RXCLK_SEL; - if (cfg->rxclk_sel) - t |= AR8327_PAD_PHY_GMII_RXCLK_SEL; - if (cfg->txclk_sel) - t |= AR8327_PAD_PHY_GMII_TXCLK_SEL; - break; - - case AR8327_PAD_MAC_RGMII: - t = AR8327_PAD_RGMII_EN; - t |= cfg->txclk_delay_sel << AR8327_PAD_RGMII_TXCLK_DELAY_SEL_S; - t |= cfg->rxclk_delay_sel << AR8327_PAD_RGMII_RXCLK_DELAY_SEL_S; - if (cfg->rxclk_delay_en) - t |= AR8327_PAD_RGMII_RXCLK_DELAY_EN; - if (cfg->txclk_delay_en) - t |= AR8327_PAD_RGMII_TXCLK_DELAY_EN; - break; - - case AR8327_PAD_PHY_GMII: - t = AR8327_PAD_PHYX_GMII_EN; - break; - - case AR8327_PAD_PHY_RGMII: - t = AR8327_PAD_PHYX_RGMII_EN; - break; - - case AR8327_PAD_PHY_MII: - t = AR8327_PAD_PHYX_MII_EN; - break; - } - - return t; -} - -static void -ar8327_phy_fixup(struct ar8xxx_priv *priv, int phy) -{ - switch (priv->chip_rev) { - case 1: - /* For 100M waveform */ - ar8xxx_phy_dbg_write(priv, phy, 0, 0x02ea); - /* Turn on Gigabit clock */ - ar8xxx_phy_dbg_write(priv, phy, 0x3d, 0x68a0); - break; - - case 2: - ar8xxx_phy_mmd_write(priv, phy, 0x7, 0x3c); - ar8xxx_phy_mmd_write(priv, phy, 0x4007, 0x0); - /* fallthrough */ - case 4: - ar8xxx_phy_mmd_write(priv, phy, 0x3, 0x800d); - ar8xxx_phy_mmd_write(priv, phy, 0x4003, 0x803f); - - ar8xxx_phy_dbg_write(priv, phy, 0x3d, 0x6860); - ar8xxx_phy_dbg_write(priv, phy, 0x5, 0x2c46); - ar8xxx_phy_dbg_write(priv, phy, 0x3c, 0x6000); - break; - } -} - -static int -ar8327_hw_init(struct ar8xxx_priv *priv) -{ - struct ar8327_platform_data *pdata; - struct ar8327_led_cfg *led_cfg; - struct mii_bus *bus; - u32 pos, new_pos; - u32 t; - int i; - - pdata = priv->phy->dev.platform_data; - if (!pdata) - return -EINVAL; - - t = ar8327_get_pad_cfg(pdata->pad0_cfg); - priv->write(priv, AR8327_REG_PAD0_MODE, t); - t = ar8327_get_pad_cfg(pdata->pad5_cfg); - priv->write(priv, AR8327_REG_PAD5_MODE, t); - t = ar8327_get_pad_cfg(pdata->pad6_cfg); - priv->write(priv, AR8327_REG_PAD6_MODE, t); - - pos = priv->read(priv, AR8327_REG_POWER_ON_STRIP); - new_pos = pos; - - led_cfg = pdata->led_cfg; - if (led_cfg) { - if (led_cfg->open_drain) - new_pos |= AR8327_POWER_ON_STRIP_LED_OPEN_EN; - else - new_pos &= ~AR8327_POWER_ON_STRIP_LED_OPEN_EN; - - priv->write(priv, AR8327_REG_LED_CTRL0, led_cfg->led_ctrl0); - priv->write(priv, AR8327_REG_LED_CTRL1, led_cfg->led_ctrl1); - priv->write(priv, AR8327_REG_LED_CTRL2, led_cfg->led_ctrl2); - priv->write(priv, AR8327_REG_LED_CTRL3, led_cfg->led_ctrl3); - } - - if (new_pos != pos) { - new_pos |= AR8327_POWER_ON_STRIP_POWER_ON_SEL; - priv->write(priv, AR8327_REG_POWER_ON_STRIP, new_pos); - } - - bus = priv->mii_bus; - for (i = 0; i < AR8327_NUM_PHYS; i++) { - ar8327_phy_fixup(priv, i); - - /* start aneg on the PHY */ - mdiobus_write(bus, i, MII_ADVERTISE, ADVERTISE_ALL | - ADVERTISE_PAUSE_CAP | - ADVERTISE_PAUSE_ASYM); - mdiobus_write(bus, i, MII_CTRL1000, ADVERTISE_1000FULL); - mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE); - } - - msleep(1000); - - return 0; -} - -static void -ar8327_init_globals(struct ar8xxx_priv *priv) -{ - u32 t; - - /* enable CPU port and disable mirror port */ - t = AR8327_FWD_CTRL0_CPU_PORT_EN | - AR8327_FWD_CTRL0_MIRROR_PORT; - priv->write(priv, AR8327_REG_FWD_CTRL0, t); - - /* forward multicast and broadcast frames to CPU */ - t = (AR8327_PORTS_ALL << AR8327_FWD_CTRL1_UC_FLOOD_S) | - (AR8327_PORTS_ALL << AR8327_FWD_CTRL1_MC_FLOOD_S) | - (AR8327_PORTS_ALL << AR8327_FWD_CTRL1_BC_FLOOD_S); - priv->write(priv, AR8327_REG_FWD_CTRL1, t); - - /* setup MTU */ - ar8xxx_rmw(priv, AR8327_REG_MAX_FRAME_SIZE, - AR8327_MAX_FRAME_SIZE_MTU, 1518 + 8 + 2); - - /* Enable MIB counters */ - ar8xxx_reg_set(priv, AR8327_REG_MODULE_EN, - AR8327_MODULE_EN_MIB); -} - -static void -ar8327_config_port(struct ar8xxx_priv *priv, unsigned int port, - struct ar8327_port_cfg *cfg) -{ - u32 t; - - if (!cfg || !cfg->force_link) { - priv->write(priv, AR8327_REG_PORT_STATUS(port), - AR8216_PORT_STATUS_LINK_AUTO); - return; - } - - t = AR8216_PORT_STATUS_TXMAC | AR8216_PORT_STATUS_RXMAC; - t |= cfg->duplex ? AR8216_PORT_STATUS_DUPLEX : 0; - t |= cfg->rxpause ? AR8216_PORT_STATUS_RXFLOW : 0; - t |= cfg->txpause ? AR8216_PORT_STATUS_TXFLOW : 0; - - switch (cfg->speed) { - case AR8327_PORT_SPEED_10: - t |= AR8216_PORT_SPEED_10M; - break; - case AR8327_PORT_SPEED_100: - t |= AR8216_PORT_SPEED_100M; - break; - case AR8327_PORT_SPEED_1000: - t |= AR8216_PORT_SPEED_1000M; - break; - } - - priv->write(priv, AR8327_REG_PORT_STATUS(port), t); -} - -static void -ar8327_init_port(struct ar8xxx_priv *priv, int port) -{ - struct ar8327_platform_data *pdata; - struct ar8327_port_cfg *cfg; - u32 t; - - pdata = priv->phy->dev.platform_data; - - if (pdata && port == AR8216_PORT_CPU) - cfg = &pdata->port0_cfg; - else if (pdata && port == 6) - cfg = &pdata->port6_cfg; - else - cfg = NULL; - - ar8327_config_port(priv, port, cfg); - - priv->write(priv, AR8327_REG_PORT_HEADER(port), 0); - - t = 1 << AR8327_PORT_VLAN0_DEF_SVID_S; - t |= 1 << AR8327_PORT_VLAN0_DEF_CVID_S; - priv->write(priv, AR8327_REG_PORT_VLAN0(port), t); - - t = AR8327_PORT_VLAN1_OUT_MODE_UNTOUCH << AR8327_PORT_VLAN1_OUT_MODE_S; - priv->write(priv, AR8327_REG_PORT_VLAN1(port), t); - - t = AR8327_PORT_LOOKUP_LEARN; - t |= AR8216_PORT_STATE_FORWARD << AR8327_PORT_LOOKUP_STATE_S; - priv->write(priv, AR8327_REG_PORT_LOOKUP(port), t); -} - -static u32 -ar8327_read_port_status(struct ar8xxx_priv *priv, int port) -{ - return priv->read(priv, AR8327_REG_PORT_STATUS(port)); -} - -static int -ar8327_atu_flush(struct ar8xxx_priv *priv) -{ - int ret; - - ret = ar8216_wait_bit(priv, AR8327_REG_ATU_FUNC, - AR8327_ATU_FUNC_BUSY, 0); - if (!ret) - priv->write(priv, AR8327_REG_ATU_FUNC, - AR8327_ATU_FUNC_OP_FLUSH); - - return ret; -} - -static void -ar8327_vtu_op(struct ar8xxx_priv *priv, u32 op, u32 val) -{ - if (ar8216_wait_bit(priv, AR8327_REG_VTU_FUNC1, - AR8327_VTU_FUNC1_BUSY, 0)) - return; - - if ((op & AR8327_VTU_FUNC1_OP) == AR8327_VTU_FUNC1_OP_LOAD) - priv->write(priv, AR8327_REG_VTU_FUNC0, val); - - op |= AR8327_VTU_FUNC1_BUSY; - priv->write(priv, AR8327_REG_VTU_FUNC1, op); -} - -static void -ar8327_vtu_flush(struct ar8xxx_priv *priv) -{ - ar8327_vtu_op(priv, AR8327_VTU_FUNC1_OP_FLUSH, 0); -} - -static void -ar8327_vtu_load_vlan(struct ar8xxx_priv *priv, u32 vid, u32 port_mask) -{ - u32 op; - u32 val; - int i; - - op = AR8327_VTU_FUNC1_OP_LOAD | (vid << AR8327_VTU_FUNC1_VID_S); - val = AR8327_VTU_FUNC0_VALID | AR8327_VTU_FUNC0_IVL; - for (i = 0; i < AR8327_NUM_PORTS; i++) { - u32 mode; - - if ((port_mask & BIT(i)) == 0) - mode = AR8327_VTU_FUNC0_EG_MODE_NOT; - else if (priv->vlan == 0) - mode = AR8327_VTU_FUNC0_EG_MODE_KEEP; - else if (priv->vlan_tagged & BIT(i)) - mode = AR8327_VTU_FUNC0_EG_MODE_TAG; - else - mode = AR8327_VTU_FUNC0_EG_MODE_UNTAG; - - val |= mode << AR8327_VTU_FUNC0_EG_MODE_S(i); - } - ar8327_vtu_op(priv, op, val); -} - -static void -ar8327_setup_port(struct ar8xxx_priv *priv, int port, u32 egress, u32 ingress, - u32 members, u32 pvid) -{ - u32 t; - u32 mode; - - t = pvid << AR8327_PORT_VLAN0_DEF_SVID_S; - t |= pvid << AR8327_PORT_VLAN0_DEF_CVID_S; - priv->write(priv, AR8327_REG_PORT_VLAN0(port), t); - - mode = AR8327_PORT_VLAN1_OUT_MODE_UNMOD; - switch (egress) { - case AR8216_OUT_KEEP: - mode = AR8327_PORT_VLAN1_OUT_MODE_UNTOUCH; - break; - case AR8216_OUT_STRIP_VLAN: - mode = AR8327_PORT_VLAN1_OUT_MODE_UNTAG; - break; - case AR8216_OUT_ADD_VLAN: - mode = AR8327_PORT_VLAN1_OUT_MODE_TAG; - break; - } - - t = AR8327_PORT_VLAN1_PORT_VLAN_PROP; - t |= mode << AR8327_PORT_VLAN1_OUT_MODE_S; - priv->write(priv, AR8327_REG_PORT_VLAN1(port), t); - - t = members; - t |= AR8327_PORT_LOOKUP_LEARN; - t |= ingress << AR8327_PORT_LOOKUP_IN_MODE_S; - t |= AR8216_PORT_STATE_FORWARD << AR8327_PORT_LOOKUP_STATE_S; - priv->write(priv, AR8327_REG_PORT_LOOKUP(port), t); -} - -static const struct ar8xxx_chip ar8327_chip = { - .caps = AR8XXX_CAP_GIGE | AR8XXX_CAP_MIB_COUNTERS, - .hw_init = ar8327_hw_init, - .init_globals = ar8327_init_globals, - .init_port = ar8327_init_port, - .setup_port = ar8327_setup_port, - .read_port_status = ar8327_read_port_status, - .atu_flush = ar8327_atu_flush, - .vtu_flush = ar8327_vtu_flush, - .vtu_load_vlan = ar8327_vtu_load_vlan, - - .num_mibs = ARRAY_SIZE(ar8236_mibs), - .mib_decs = ar8236_mibs, -}; - -static int -ar8xxx_sw_set_vlan(struct switch_dev *dev, const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); - priv->vlan = !!val->value.i; - return 0; -} - -static int -ar8xxx_sw_get_vlan(struct switch_dev *dev, const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); - val->value.i = priv->vlan; + priv->pvid[port] = vlan; return 0; } - -static int -ar8xxx_sw_set_pvid(struct switch_dev *dev, int port, int vlan) +int +ar8xxx_sw_get_pvid(struct switch_dev *dev, int port, int *vlan) { struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); - /* make sure no invalid PVIDs get set */ - - if (vlan >= dev->vlans) + if (port < 0 || port >= AR8X16_MAX_PORTS) return -EINVAL; - priv->pvid[port] = vlan; - return 0; -} - -static int -ar8xxx_sw_get_pvid(struct switch_dev *dev, int port, int *vlan) -{ - struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); *vlan = priv->pvid[port]; return 0; } @@ -1312,6 +979,10 @@ ar8xxx_sw_set_vid(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) { struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + + if (val->port_vlan >= AR8X16_MAX_VLANS) + return -EINVAL; + priv->vlan_id[val->port_vlan] = val->value.i; return 0; } @@ -1325,7 +996,7 @@ ar8xxx_sw_get_vid(struct switch_dev *dev, const struct switch_attr *attr, return 0; } -static int +int ar8xxx_sw_get_port_link(struct switch_dev *dev, int port, struct switch_port_link *link) { @@ -1339,9 +1010,13 @@ static int ar8xxx_sw_get_ports(struct switch_dev *dev, struct switch_val *val) { struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); - u8 ports = priv->vlan_table[val->port_vlan]; + u8 ports; int i; + if (val->port_vlan >= AR8X16_MAX_VLANS) + return -EINVAL; + + ports = priv->vlan_table[val->port_vlan]; val->len = 0; for (i = 0; i < dev->ports; i++) { struct switch_port *p; @@ -1390,10 +1065,62 @@ ar8xxx_sw_set_ports(struct switch_dev *dev, struct switch_val *val) return 0; } -static int +static void +ar8216_set_mirror_regs(struct ar8xxx_priv *priv) +{ + int port; + + /* reset all mirror registers */ + ar8xxx_rmw(priv, AR8216_REG_GLOBAL_CPUPORT, + AR8216_GLOBAL_CPUPORT_MIRROR_PORT, + (0xF << AR8216_GLOBAL_CPUPORT_MIRROR_PORT_S)); + for (port = 0; port < AR8216_NUM_PORTS; port++) { + ar8xxx_reg_clear(priv, AR8216_REG_PORT_CTRL(port), + AR8216_PORT_CTRL_MIRROR_RX); + + ar8xxx_reg_clear(priv, AR8216_REG_PORT_CTRL(port), + AR8216_PORT_CTRL_MIRROR_TX); + } + + /* now enable mirroring if necessary */ + if (priv->source_port >= AR8216_NUM_PORTS || + priv->monitor_port >= AR8216_NUM_PORTS || + priv->source_port == priv->monitor_port) { + return; + } + + ar8xxx_rmw(priv, AR8216_REG_GLOBAL_CPUPORT, + AR8216_GLOBAL_CPUPORT_MIRROR_PORT, + (priv->monitor_port << AR8216_GLOBAL_CPUPORT_MIRROR_PORT_S)); + + if (priv->mirror_rx) + ar8xxx_reg_set(priv, AR8216_REG_PORT_CTRL(priv->source_port), + AR8216_PORT_CTRL_MIRROR_RX); + + if (priv->mirror_tx) + ar8xxx_reg_set(priv, AR8216_REG_PORT_CTRL(priv->source_port), + AR8216_PORT_CTRL_MIRROR_TX); +} + +static inline u32 +ar8xxx_age_time_val(int age_time) +{ + return (age_time + AR8XXX_REG_ARL_CTRL_AGE_TIME_SECS / 2) / + AR8XXX_REG_ARL_CTRL_AGE_TIME_SECS; +} + +static inline void +ar8xxx_set_age_time(struct ar8xxx_priv *priv, int reg) +{ + u32 age_time = ar8xxx_age_time_val(priv->arl_age_time); + ar8xxx_rmw(priv, reg, AR8216_ATU_CTRL_AGE_TIME, age_time << AR8216_ATU_CTRL_AGE_TIME_S); +} + +int ar8xxx_sw_hw_apply(struct switch_dev *dev) { struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + const struct ar8xxx_chip *chip = priv->chip; u8 portmask[AR8X16_MAX_PORTS]; int i, j; @@ -1417,8 +1144,8 @@ ar8xxx_sw_hw_apply(struct switch_dev *dev) portmask[i] |= vp & ~mask; } - priv->chip->vtu_load_vlan(priv, priv->vlan_id[j], - priv->vlan_table[j]); + chip->vtu_load_vlan(priv, priv->vlan_id[j], + priv->vlan_table[j]); } } else { /* vlan disabled: @@ -1434,33 +1161,24 @@ ar8xxx_sw_hw_apply(struct switch_dev *dev) /* update the port destination mask registers and tag settings */ for (i = 0; i < dev->ports; i++) { - int egress, ingress; - int pvid; - - if (priv->vlan) { - pvid = priv->vlan_id[priv->pvid[i]]; - if (priv->vlan_tagged & (1 << i)) - egress = AR8216_OUT_ADD_VLAN; - else - egress = AR8216_OUT_STRIP_VLAN; - ingress = AR8216_IN_SECURE; - } else { - pvid = i; - egress = AR8216_OUT_KEEP; - ingress = AR8216_IN_PORT_ONLY; - } - - priv->chip->setup_port(priv, i, egress, ingress, portmask[i], - pvid); + chip->setup_port(priv, i, portmask[i]); } + + chip->set_mirror_regs(priv); + + /* set age time */ + if (chip->reg_arl_ctrl) + ar8xxx_set_age_time(priv, chip->reg_arl_ctrl); + mutex_unlock(&priv->reg_mutex); return 0; } -static int +int ar8xxx_sw_reset_switch(struct switch_dev *dev) { struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + const struct ar8xxx_chip *chip = priv->chip; int i; mutex_lock(&priv->reg_mutex); @@ -1472,15 +1190,23 @@ ar8xxx_sw_reset_switch(struct switch_dev *dev) /* Configure all ports */ for (i = 0; i < dev->ports; i++) - priv->chip->init_port(priv, i); + chip->init_port(priv, i); + + priv->mirror_rx = false; + priv->mirror_tx = false; + priv->source_port = 0; + priv->monitor_port = 0; + priv->arl_age_time = AR8XXX_DEFAULT_ARL_AGE_TIME; + + chip->init_globals(priv); + chip->atu_flush(priv); - priv->chip->init_globals(priv); mutex_unlock(&priv->reg_mutex); - return ar8xxx_sw_hw_apply(dev); + return chip->sw_hw_apply(dev); } -static int +int ar8xxx_sw_set_reset_mibs(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) @@ -1494,99 +1220,373 @@ ar8xxx_sw_set_reset_mibs(struct switch_dev *dev, mutex_lock(&priv->mib_lock); - len = priv->dev.ports * priv->chip->num_mibs * - sizeof(*priv->mib_stats); - memset(priv->mib_stats, '\0', len); - ret = ar8xxx_mib_flush(priv); - if (ret) - goto unlock; + len = priv->dev.ports * priv->chip->num_mibs * + sizeof(*priv->mib_stats); + memset(priv->mib_stats, '\0', len); + ret = ar8xxx_mib_flush(priv); + if (ret) + goto unlock; + + ret = 0; + +unlock: + mutex_unlock(&priv->mib_lock); + return ret; +} + +int +ar8xxx_sw_set_mirror_rx_enable(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + + mutex_lock(&priv->reg_mutex); + priv->mirror_rx = !!val->value.i; + priv->chip->set_mirror_regs(priv); + mutex_unlock(&priv->reg_mutex); + + return 0; +} + +int +ar8xxx_sw_get_mirror_rx_enable(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + val->value.i = priv->mirror_rx; + return 0; +} + +int +ar8xxx_sw_set_mirror_tx_enable(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + + mutex_lock(&priv->reg_mutex); + priv->mirror_tx = !!val->value.i; + priv->chip->set_mirror_regs(priv); + mutex_unlock(&priv->reg_mutex); + + return 0; +} + +int +ar8xxx_sw_get_mirror_tx_enable(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + val->value.i = priv->mirror_tx; + return 0; +} + +int +ar8xxx_sw_set_mirror_monitor_port(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + + mutex_lock(&priv->reg_mutex); + priv->monitor_port = val->value.i; + priv->chip->set_mirror_regs(priv); + mutex_unlock(&priv->reg_mutex); + + return 0; +} + +int +ar8xxx_sw_get_mirror_monitor_port(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + val->value.i = priv->monitor_port; + return 0; +} + +int +ar8xxx_sw_set_mirror_source_port(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + + mutex_lock(&priv->reg_mutex); + priv->source_port = val->value.i; + priv->chip->set_mirror_regs(priv); + mutex_unlock(&priv->reg_mutex); + + return 0; +} + +int +ar8xxx_sw_get_mirror_source_port(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + val->value.i = priv->source_port; + return 0; +} + +int +ar8xxx_sw_set_port_reset_mib(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + int port; + int ret; + + if (!ar8xxx_has_mib_counters(priv)) + return -EOPNOTSUPP; + + port = val->port_vlan; + if (port >= dev->ports) + return -EINVAL; + + mutex_lock(&priv->mib_lock); + ret = ar8xxx_mib_capture(priv); + if (ret) + goto unlock; + + ar8xxx_mib_fetch_port_stat(priv, port, true); + + ret = 0; + +unlock: + mutex_unlock(&priv->mib_lock); + return ret; +} + +static void +ar8xxx_byte_to_str(char *buf, int len, u64 byte) +{ + unsigned long b; + const char *unit; + + if (byte >= 0x40000000) { /* 1 GiB */ + b = byte * 10 / 0x40000000; + unit = "GiB"; + } else if (byte >= 0x100000) { /* 1 MiB */ + b = byte * 10 / 0x100000; + unit = "MiB"; + } else if (byte >= 0x400) { /* 1 KiB */ + b = byte * 10 / 0x400; + unit = "KiB"; + } else { + b = byte; + unit = "Byte"; + } + if (strcmp(unit, "Byte")) + snprintf(buf, len, "%lu.%lu %s", b / 10, b % 10, unit); + else + snprintf(buf, len, "%lu %s", b, unit); +} + +int +ar8xxx_sw_get_port_mib(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + const struct ar8xxx_chip *chip = priv->chip; + u64 *mib_stats, mib_data; + unsigned int port; + int ret; + char *buf = priv->buf; + char buf1[64]; + const char *mib_name; + int i, len = 0; + bool mib_stats_empty = true; + + if (!ar8xxx_has_mib_counters(priv)) + return -EOPNOTSUPP; + + port = val->port_vlan; + if (port >= dev->ports) + return -EINVAL; + + mutex_lock(&priv->mib_lock); + ret = ar8xxx_mib_capture(priv); + if (ret) + goto unlock; + + ar8xxx_mib_fetch_port_stat(priv, port, false); + + len += snprintf(buf + len, sizeof(priv->buf) - len, + "MIB counters\n"); + + mib_stats = &priv->mib_stats[port * chip->num_mibs]; + for (i = 0; i < chip->num_mibs; i++) { + mib_name = chip->mib_decs[i].name; + mib_data = mib_stats[i]; + len += snprintf(buf + len, sizeof(priv->buf) - len, + "%-12s: %llu\n", mib_name, mib_data); + if ((!strcmp(mib_name, "TxByte") || + !strcmp(mib_name, "RxGoodByte")) && + mib_data >= 1024) { + ar8xxx_byte_to_str(buf1, sizeof(buf1), mib_data); + --len; /* discard newline at the end of buf */ + len += snprintf(buf + len, sizeof(priv->buf) - len, + " (%s)\n", buf1); + } + if (mib_stats_empty && mib_data) + mib_stats_empty = false; + } + + if (mib_stats_empty) + len = snprintf(buf, sizeof(priv->buf), "No MIB data"); + + val->value.s = buf; + val->len = len; + + ret = 0; + +unlock: + mutex_unlock(&priv->mib_lock); + return ret; +} + +int +ar8xxx_sw_set_arl_age_time(struct switch_dev *dev, const struct switch_attr *attr, + struct switch_val *val) +{ + struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + int age_time = val->value.i; + u32 age_time_val; + + if (age_time < 0) + return -EINVAL; + + age_time_val = ar8xxx_age_time_val(age_time); + if (age_time_val == 0 || age_time_val > 0xffff) + return -EINVAL; + + priv->arl_age_time = age_time; + return 0; +} + +int +ar8xxx_sw_get_arl_age_time(struct switch_dev *dev, const struct switch_attr *attr, + struct switch_val *val) +{ + struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + val->value.i = priv->arl_age_time; + return 0; +} + +int +ar8xxx_sw_get_arl_table(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); + struct mii_bus *bus = priv->mii_bus; + const struct ar8xxx_chip *chip = priv->chip; + char *buf = priv->arl_buf; + int i, j, k, len = 0; + struct arl_entry *a, *a1; + u32 status; + + if (!chip->get_arl_entry) + return -EOPNOTSUPP; + + mutex_lock(&priv->reg_mutex); + mutex_lock(&bus->mdio_lock); + + chip->get_arl_entry(priv, NULL, NULL, AR8XXX_ARL_INITIALIZE); + + for(i = 0; i < AR8XXX_NUM_ARL_RECORDS; ++i) { + a = &priv->arl_table[i]; + duplicate: + chip->get_arl_entry(priv, a, &status, AR8XXX_ARL_GET_NEXT); + + if (!status) + break; + + /* avoid duplicates + * ARL table can include multiple valid entries + * per MAC, just with differing status codes + */ + for (j = 0; j < i; ++j) { + a1 = &priv->arl_table[j]; + if (a->port == a1->port && !memcmp(a->mac, a1->mac, sizeof(a->mac))) + goto duplicate; + } + } + + mutex_unlock(&bus->mdio_lock); + + len += snprintf(buf + len, sizeof(priv->arl_buf) - len, + "address resolution table\n"); + + if (i == AR8XXX_NUM_ARL_RECORDS) + len += snprintf(buf + len, sizeof(priv->arl_buf) - len, + "Too many entries found, displaying the first %d only!\n", + AR8XXX_NUM_ARL_RECORDS); + + for (j = 0; j < priv->dev.ports; ++j) { + for (k = 0; k < i; ++k) { + a = &priv->arl_table[k]; + if (a->port != j) + continue; + len += snprintf(buf + len, sizeof(priv->arl_buf) - len, + "Port %d: MAC %02x:%02x:%02x:%02x:%02x:%02x\n", + j, + a->mac[5], a->mac[4], a->mac[3], + a->mac[2], a->mac[1], a->mac[0]); + } + } + + val->value.s = buf; + val->len = len; - ret = 0; + mutex_unlock(&priv->reg_mutex); -unlock: - mutex_unlock(&priv->mib_lock); - return ret; + return 0; } -static int -ar8xxx_sw_set_port_reset_mib(struct switch_dev *dev, - const struct switch_attr *attr, - struct switch_val *val) +int +ar8xxx_sw_set_flush_arl_table(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) { struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); - int port; int ret; - if (!ar8xxx_has_mib_counters(priv)) - return -EOPNOTSUPP; - - port = val->port_vlan; - if (port >= dev->ports) - return -EINVAL; - - mutex_lock(&priv->mib_lock); - ret = ar8xxx_mib_capture(priv); - if (ret) - goto unlock; - - ar8xxx_mib_fetch_port_stat(priv, port, true); - - ret = 0; + mutex_lock(&priv->reg_mutex); + ret = priv->chip->atu_flush(priv); + mutex_unlock(&priv->reg_mutex); -unlock: - mutex_unlock(&priv->mib_lock); return ret; } -static int -ar8xxx_sw_get_port_mib(struct switch_dev *dev, - const struct switch_attr *attr, - struct switch_val *val) +int +ar8xxx_sw_set_flush_port_arl_table(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) { struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev); - const struct ar8xxx_chip *chip = priv->chip; - u64 *mib_stats; - int port; - int ret; - char *buf = priv->buf; - int i, len = 0; - - if (!ar8xxx_has_mib_counters(priv)) - return -EOPNOTSUPP; + int port, ret; port = val->port_vlan; if (port >= dev->ports) return -EINVAL; - mutex_lock(&priv->mib_lock); - ret = ar8xxx_mib_capture(priv); - if (ret) - goto unlock; - - ar8xxx_mib_fetch_port_stat(priv, port, false); - - len += snprintf(buf + len, sizeof(priv->buf) - len, - "Port %d MIB counters\n", - port); - - mib_stats = &priv->mib_stats[port * chip->num_mibs]; - for (i = 0; i < chip->num_mibs; i++) - len += snprintf(buf + len, sizeof(priv->buf) - len, - "%-12s: %llu\n", - chip->mib_decs[i].name, - mib_stats[i]); - - val->value.s = buf; - val->len = len; - - ret = 0; + mutex_lock(&priv->reg_mutex); + ret = priv->chip->atu_flush_port(priv, port); + mutex_unlock(&priv->reg_mutex); -unlock: - mutex_unlock(&priv->mib_lock); return ret; } -static struct switch_attr ar8xxx_sw_attr_globals[] = { +static const struct switch_attr ar8xxx_sw_attr_globals[] = { { .type = SWITCH_TYPE_INT, .name = "enable_vlan", @@ -1601,10 +1601,54 @@ static struct switch_attr ar8xxx_sw_attr_globals[] = { .description = "Reset all MIB counters", .set = ar8xxx_sw_set_reset_mibs, }, - + { + .type = SWITCH_TYPE_INT, + .name = "enable_mirror_rx", + .description = "Enable mirroring of RX packets", + .set = ar8xxx_sw_set_mirror_rx_enable, + .get = ar8xxx_sw_get_mirror_rx_enable, + .max = 1 + }, + { + .type = SWITCH_TYPE_INT, + .name = "enable_mirror_tx", + .description = "Enable mirroring of TX packets", + .set = ar8xxx_sw_set_mirror_tx_enable, + .get = ar8xxx_sw_get_mirror_tx_enable, + .max = 1 + }, + { + .type = SWITCH_TYPE_INT, + .name = "mirror_monitor_port", + .description = "Mirror monitor port", + .set = ar8xxx_sw_set_mirror_monitor_port, + .get = ar8xxx_sw_get_mirror_monitor_port, + .max = AR8216_NUM_PORTS - 1 + }, + { + .type = SWITCH_TYPE_INT, + .name = "mirror_source_port", + .description = "Mirror source port", + .set = ar8xxx_sw_set_mirror_source_port, + .get = ar8xxx_sw_get_mirror_source_port, + .max = AR8216_NUM_PORTS - 1 + }, + { + .type = SWITCH_TYPE_STRING, + .name = "arl_table", + .description = "Get ARL table", + .set = NULL, + .get = ar8xxx_sw_get_arl_table, + }, + { + .type = SWITCH_TYPE_NOVAL, + .name = "flush_arl_table", + .description = "Flush ARL table", + .set = ar8xxx_sw_set_flush_arl_table, + }, }; -static struct switch_attr ar8xxx_sw_attr_port[] = { +const struct switch_attr ar8xxx_sw_attr_port[] = { { .type = SWITCH_TYPE_NOVAL, .name = "reset_mib", @@ -1618,9 +1662,15 @@ static struct switch_attr ar8xxx_sw_attr_port[] = { .set = NULL, .get = ar8xxx_sw_get_port_mib, }, + { + .type = SWITCH_TYPE_NOVAL, + .name = "flush_arl_table", + .description = "Flush port's ARL table entries", + .set = ar8xxx_sw_set_flush_port_arl_table, + }, }; -static struct switch_attr ar8xxx_sw_attr_vlan[] = { +const struct switch_attr ar8xxx_sw_attr_vlan[1] = { { .type = SWITCH_TYPE_INT, .name = "vid", @@ -1651,6 +1701,106 @@ static const struct switch_dev_ops ar8xxx_sw_ops = { .apply_config = ar8xxx_sw_hw_apply, .reset_switch = ar8xxx_sw_reset_switch, .get_port_link = ar8xxx_sw_get_port_link, +/* The following op is disabled as it hogs the CPU and degrades performance. + An implementation has been attempted in 4d8a66d but reading MIB data is slow + on ar8xxx switches. + + The high CPU load has been traced down to the ar8xxx_reg_wait() call in + ar8xxx_mib_op(), which has to usleep_range() till the MIB busy flag set by + the request to update the MIB counter is cleared. */ +#if 0 + .get_port_stats = ar8xxx_sw_get_port_stats, +#endif +}; + +static const struct ar8xxx_chip ar8216_chip = { + .caps = AR8XXX_CAP_MIB_COUNTERS, + + .reg_port_stats_start = 0x19000, + .reg_port_stats_length = 0xa0, + .reg_arl_ctrl = AR8216_REG_ATU_CTRL, + + .name = "Atheros AR8216", + .ports = AR8216_NUM_PORTS, + .vlans = AR8216_NUM_VLANS, + .swops = &ar8xxx_sw_ops, + + .hw_init = ar8216_hw_init, + .init_globals = ar8216_init_globals, + .init_port = ar8216_init_port, + .setup_port = ar8216_setup_port, + .read_port_status = ar8216_read_port_status, + .atu_flush = ar8216_atu_flush, + .atu_flush_port = ar8216_atu_flush_port, + .vtu_flush = ar8216_vtu_flush, + .vtu_load_vlan = ar8216_vtu_load_vlan, + .set_mirror_regs = ar8216_set_mirror_regs, + .get_arl_entry = ar8216_get_arl_entry, + .sw_hw_apply = ar8xxx_sw_hw_apply, + + .num_mibs = ARRAY_SIZE(ar8216_mibs), + .mib_decs = ar8216_mibs, + .mib_func = AR8216_REG_MIB_FUNC +}; + +static const struct ar8xxx_chip ar8236_chip = { + .caps = AR8XXX_CAP_MIB_COUNTERS, + + .reg_port_stats_start = 0x20000, + .reg_port_stats_length = 0x100, + .reg_arl_ctrl = AR8216_REG_ATU_CTRL, + + .name = "Atheros AR8236", + .ports = AR8216_NUM_PORTS, + .vlans = AR8216_NUM_VLANS, + .swops = &ar8xxx_sw_ops, + + .hw_init = ar8216_hw_init, + .init_globals = ar8236_init_globals, + .init_port = ar8216_init_port, + .setup_port = ar8236_setup_port, + .read_port_status = ar8216_read_port_status, + .atu_flush = ar8216_atu_flush, + .atu_flush_port = ar8216_atu_flush_port, + .vtu_flush = ar8216_vtu_flush, + .vtu_load_vlan = ar8216_vtu_load_vlan, + .set_mirror_regs = ar8216_set_mirror_regs, + .get_arl_entry = ar8216_get_arl_entry, + .sw_hw_apply = ar8xxx_sw_hw_apply, + + .num_mibs = ARRAY_SIZE(ar8236_mibs), + .mib_decs = ar8236_mibs, + .mib_func = AR8216_REG_MIB_FUNC +}; + +static const struct ar8xxx_chip ar8316_chip = { + .caps = AR8XXX_CAP_GIGE | AR8XXX_CAP_MIB_COUNTERS, + + .reg_port_stats_start = 0x20000, + .reg_port_stats_length = 0x100, + .reg_arl_ctrl = AR8216_REG_ATU_CTRL, + + .name = "Atheros AR8316", + .ports = AR8216_NUM_PORTS, + .vlans = AR8X16_MAX_VLANS, + .swops = &ar8xxx_sw_ops, + + .hw_init = ar8316_hw_init, + .init_globals = ar8316_init_globals, + .init_port = ar8216_init_port, + .setup_port = ar8216_setup_port, + .read_port_status = ar8216_read_port_status, + .atu_flush = ar8216_atu_flush, + .atu_flush_port = ar8216_atu_flush_port, + .vtu_flush = ar8216_vtu_flush, + .vtu_load_vlan = ar8216_vtu_load_vlan, + .set_mirror_regs = ar8216_set_mirror_regs, + .get_arl_entry = ar8216_get_arl_entry, + .sw_hw_apply = ar8xxx_sw_hw_apply, + + .num_mibs = ARRAY_SIZE(ar8236_mibs), + .mib_decs = ar8236_mibs, + .mib_func = AR8216_REG_MIB_FUNC }; static int @@ -1660,7 +1810,7 @@ ar8xxx_id_chip(struct ar8xxx_priv *priv) u16 id; int i; - val = priv->read(priv, AR8216_REG_CTRL); + val = ar8xxx_read(priv, AR8216_REG_CTRL); if (val == ~0) return -ENODEV; @@ -1668,7 +1818,7 @@ ar8xxx_id_chip(struct ar8xxx_priv *priv) for (i = 0; i < AR8X16_PROBE_RETRIES; i++) { u16 t; - val = priv->read(priv, AR8216_REG_CTRL); + val = ar8xxx_read(priv, AR8216_REG_CTRL); if (val == ~0) return -ENODEV; @@ -1691,9 +1841,11 @@ ar8xxx_id_chip(struct ar8xxx_priv *priv) priv->chip = &ar8316_chip; break; case AR8XXX_VER_AR8327: - priv->mii_lo_first = true; priv->chip = &ar8327_chip; break; + case AR8XXX_VER_AR8337: + priv->chip = &ar8337_chip; + break; default: pr_err("ar8216: Unknown Atheros device [ver=%d, rev=%d]\n", priv->chip_ver, priv->chip_rev); @@ -1766,7 +1918,7 @@ ar8xxx_mib_stop(struct ar8xxx_priv *priv) if (!ar8xxx_has_mib_counters(priv)) return; - cancel_delayed_work(&priv->mib_work); + cancel_delayed_work_sync(&priv->mib_work); } static struct ar8xxx_priv * @@ -1788,28 +1940,18 @@ ar8xxx_create(void) static void ar8xxx_free(struct ar8xxx_priv *priv) { + if (priv->chip && priv->chip->cleanup) + priv->chip->cleanup(priv); + + kfree(priv->chip_data); kfree(priv->mib_stats); kfree(priv); } -static struct ar8xxx_priv * -ar8xxx_create_mii(struct mii_bus *bus) -{ - struct ar8xxx_priv *priv; - - priv = ar8xxx_create(); - if (priv) { - priv->mii_bus = bus; - priv->read = ar8xxx_mii_read; - priv->write = ar8xxx_mii_write; - } - - return priv; -} - static int ar8xxx_probe_switch(struct ar8xxx_priv *priv) { + const struct ar8xxx_chip *chip; struct switch_dev *swdev; int ret; @@ -1817,27 +1959,14 @@ ar8xxx_probe_switch(struct ar8xxx_priv *priv) if (ret) return ret; + chip = priv->chip; + swdev = &priv->dev; swdev->cpu_port = AR8216_PORT_CPU; - swdev->ops = &ar8xxx_sw_ops; - - if (chip_is_ar8316(priv)) { - swdev->name = "Atheros AR8316"; - swdev->vlans = AR8X16_MAX_VLANS; - swdev->ports = AR8216_NUM_PORTS; - } else if (chip_is_ar8236(priv)) { - swdev->name = "Atheros AR8236"; - swdev->vlans = AR8216_NUM_VLANS; - swdev->ports = AR8216_NUM_PORTS; - } else if (chip_is_ar8327(priv)) { - swdev->name = "Atheros AR8327"; - swdev->vlans = AR8X16_MAX_VLANS; - swdev->ports = AR8327_NUM_PORTS; - } else { - swdev->name = "Atheros AR8216"; - swdev->vlans = AR8216_NUM_VLANS; - swdev->ports = AR8216_NUM_PORTS; - } + swdev->name = chip->name; + swdev->vlans = chip->vlans; + swdev->ports = chip->ports; + swdev->ops = chip->swops; ret = ar8xxx_mib_init(priv); if (ret) @@ -1846,6 +1975,28 @@ ar8xxx_probe_switch(struct ar8xxx_priv *priv) return 0; } +static int +ar8xxx_start(struct ar8xxx_priv *priv) +{ + int ret; + + priv->init = true; + + ret = priv->chip->hw_init(priv); + if (ret) + return ret; + + ret = ar8xxx_sw_reset_switch(&priv->dev); + if (ret) + return ret; + + priv->init = false; + + ar8xxx_mib_start(priv); + + return 0; +} + static int ar8xxx_phy_config_init(struct phy_device *phydev) { @@ -1856,9 +2007,12 @@ ar8xxx_phy_config_init(struct phy_device *phydev) if (WARN_ON(!priv)) return -ENODEV; + if (priv->chip->config_at_probe) + return ar8xxx_phy_check_aneg(phydev); + priv->phy = phydev; - if (phydev->addr != 0) { + if (phydev->mdio.addr != 0) { if (chip_is_ar8316(priv)) { /* switch device has been initialized, reinit */ priv->dev.ports = (AR8216_NUM_PORTS - 1); @@ -1871,13 +2025,7 @@ ar8xxx_phy_config_init(struct phy_device *phydev) return 0; } - priv->init = true; - - ret = priv->chip->hw_init(priv); - if (ret) - return ret; - - ret = ar8xxx_sw_reset_switch(&priv->dev); + ret = ar8xxx_start(priv); if (ret) return ret; @@ -1889,11 +2037,36 @@ ar8xxx_phy_config_init(struct phy_device *phydev) dev->eth_mangle_tx = ar8216_mangle_tx; } - priv->init = false; + return 0; +} - ar8xxx_mib_start(priv); +static bool +ar8xxx_check_link_states(struct ar8xxx_priv *priv) +{ + bool link_new, changed = false; + u32 status; + int i; - return 0; + mutex_lock(&priv->reg_mutex); + + for (i = 0; i < priv->dev.ports; i++) { + status = priv->chip->read_port_status(priv, i); + link_new = !!(status & AR8216_PORT_STATUS_LINK_UP); + if (link_new == priv->link_up[i]) + continue; + + priv->link_up[i] = link_new; + changed = true; + /* flush ARL entries for this port if it went down*/ + if (!link_new) + priv->chip->atu_flush_port(priv, i); + dev_info(&priv->phy->mdio.dev, "Port %d is %s\n", + i, link_new ? "up" : "down"); + } + + mutex_unlock(&priv->reg_mutex); + + return changed; } static int @@ -1901,12 +2074,15 @@ ar8xxx_phy_read_status(struct phy_device *phydev) { struct ar8xxx_priv *priv = phydev->priv; struct switch_port_link link; - int ret; - if (phydev->addr != 0) + /* check for switch port link changes */ + if (phydev->state == PHY_CHANGELINK) + ar8xxx_check_link_states(priv); + + if (phydev->mdio.addr != 0) return genphy_read_status(phydev); - ar8216_read_port_link(priv, phydev->addr, &link); + ar8216_read_port_link(priv, phydev->mdio.addr, &link); phydev->link = !!link.link; if (!phydev->link) return 0; @@ -1926,22 +2102,18 @@ ar8xxx_phy_read_status(struct phy_device *phydev) } phydev->duplex = link.duplex ? DUPLEX_FULL : DUPLEX_HALF; - /* flush the address translation unit */ - mutex_lock(&priv->reg_mutex); - ret = priv->chip->atu_flush(priv); - mutex_unlock(&priv->reg_mutex); - phydev->state = PHY_RUNNING; netif_carrier_on(phydev->attached_dev); - phydev->adjust_link(phydev->attached_dev); + if (phydev->adjust_link) + phydev->adjust_link(phydev->attached_dev); - return ret; + return 0; } static int ar8xxx_phy_config_aneg(struct phy_device *phydev) { - if (phydev->addr == 0) + if (phydev->mdio.addr == 0) return 0; return genphy_config_aneg(phydev); @@ -1949,8 +2121,11 @@ ar8xxx_phy_config_aneg(struct phy_device *phydev) static const u32 ar8xxx_phy_ids[] = { 0x004dd033, + 0x004dd034, /* AR8327 */ + 0x004dd036, /* AR8337 */ 0x004dd041, 0x004dd042, + 0x004dd043, /* AR8236 */ }; static bool @@ -1968,21 +2143,21 @@ ar8xxx_phy_match(u32 phy_id) static bool ar8xxx_is_possible(struct mii_bus *bus) { - unsigned i; + unsigned int i, found_phys = 0; - for (i = 0; i < 4; i++) { + for (i = 0; i < 5; i++) { u32 phy_id; phy_id = mdiobus_read(bus, i, MII_PHYSID1) << 16; phy_id |= mdiobus_read(bus, i, MII_PHYSID2); - if (!ar8xxx_phy_match(phy_id)) { + if (ar8xxx_phy_match(phy_id)) { + found_phys++; + } else if (phy_id) { pr_debug("ar8xxx: unknown PHY at %s:%02x id:%08x\n", dev_name(&bus->dev), i, phy_id); - return false; } } - - return true; + return !!found_phys; } static int @@ -1993,23 +2168,25 @@ ar8xxx_phy_probe(struct phy_device *phydev) int ret; /* skip PHYs at unused adresses */ - if (phydev->addr != 0 && phydev->addr != 4) + if (phydev->mdio.addr != 0 && phydev->mdio.addr != 4) return -ENODEV; - if (!ar8xxx_is_possible(phydev->bus)) + if (!ar8xxx_is_possible(phydev->mdio.bus)) return -ENODEV; mutex_lock(&ar8xxx_dev_list_lock); list_for_each_entry(priv, &ar8xxx_dev_list, list) - if (priv->mii_bus == phydev->bus) + if (priv->mii_bus == phydev->mdio.bus) goto found; - priv = ar8xxx_create_mii(phydev->bus); + priv = ar8xxx_create(); if (priv == NULL) { ret = -ENOMEM; goto unlock; } + priv->mii_bus = phydev->mdio.bus; + ret = ar8xxx_probe_switch(priv); if (ret) goto free_priv; @@ -2020,11 +2197,16 @@ ar8xxx_phy_probe(struct phy_device *phydev) if (ret) goto free_priv; - pr_info("%s: %s switch registered on %s\n", - swdev->devname, swdev->name, dev_name(&priv->mii_bus->dev)); + pr_info("%s: %s rev. %u switch registered on %s\n", + swdev->devname, swdev->name, priv->chip_rev, + dev_name(&priv->mii_bus->dev)); + + list_add(&priv->list, &ar8xxx_dev_list); found: - if (phydev->addr == 0) { + priv->use_count++; + + if (phydev->mdio.addr == 0) { if (ar8xxx_has_gige(priv)) { phydev->supported = SUPPORTED_1000baseT_Full; phydev->advertising = ADVERTISED_1000baseT_Full; @@ -2032,6 +2214,14 @@ found: phydev->supported = SUPPORTED_100baseT_Full; phydev->advertising = ADVERTISED_100baseT_Full; } + + if (priv->chip->config_at_probe) { + priv->phy = phydev; + + ret = ar8xxx_start(priv); + if (ret) + goto err_unregister_switch; + } } else { if (ar8xxx_has_gige(priv)) { phydev->supported |= SUPPORTED_1000baseT_Full; @@ -2040,14 +2230,17 @@ found: } phydev->priv = priv; - priv->use_count++; - - list_add(&priv->list, &ar8xxx_dev_list); mutex_unlock(&ar8xxx_dev_list_lock); return 0; +err_unregister_switch: + if (--priv->use_count) + goto unlock; + + unregister_switch(&priv->dev); + free_priv: ar8xxx_free(priv); unlock: @@ -2078,10 +2271,14 @@ ar8xxx_phy_remove(struct phy_device *phydev) return; phydev->priv = NULL; - if (--priv->use_count > 0) - return; mutex_lock(&ar8xxx_dev_list_lock); + + if (--priv->use_count > 0) { + mutex_unlock(&ar8xxx_dev_list_lock); + return; + } + list_del(&priv->list); mutex_unlock(&ar8xxx_dev_list_lock); @@ -2090,33 +2287,28 @@ ar8xxx_phy_remove(struct phy_device *phydev) ar8xxx_free(priv); } -static struct phy_driver ar8xxx_phy_driver = { - .phy_id = 0x004d0000, - .name = "Atheros AR8216/AR8236/AR8316", - .phy_id_mask = 0xffff0000, - .features = PHY_BASIC_FEATURES, - .probe = ar8xxx_phy_probe, - .remove = ar8xxx_phy_remove, - .detach = ar8xxx_phy_detach, - .config_init = ar8xxx_phy_config_init, - .config_aneg = ar8xxx_phy_config_aneg, - .read_status = ar8xxx_phy_read_status, - .driver = { .owner = THIS_MODULE }, -}; - -int __init -ar8xxx_init(void) +static int +ar8xxx_phy_soft_reset(struct phy_device *phydev) { - return phy_driver_register(&ar8xxx_phy_driver); + /* we don't need an extra reset */ + return 0; } -void __exit -ar8xxx_exit(void) -{ - phy_driver_unregister(&ar8xxx_phy_driver); -} +static struct phy_driver ar8xxx_phy_driver[] = { + { + .phy_id = 0x004d0000, + .name = "Atheros AR8216/AR8236/AR8316", + .phy_id_mask = 0xffff0000, + .features = PHY_BASIC_FEATURES, + .probe = ar8xxx_phy_probe, + .remove = ar8xxx_phy_remove, + .detach = ar8xxx_phy_detach, + .config_init = ar8xxx_phy_config_init, + .config_aneg = ar8xxx_phy_config_aneg, + .read_status = ar8xxx_phy_read_status, + .soft_reset = ar8xxx_phy_soft_reset, + } +}; -module_init(ar8xxx_init); -module_exit(ar8xxx_exit); +module_phy_driver(ar8xxx_phy_driver); MODULE_LICENSE("GPL"); -