/* * B53 switch driver main logic * * Copyright (C) 2011-2013 Jonas Gorski * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include #include #include #include #include #include #include #include "b53_regs.h" #include "b53_priv.h" /* buffer size needed for displaying all MIBs with max'd values */ #define B53_BUF_SIZE 1188 struct b53_mib_desc { u8 size; u8 offset; const char *name; }; /* BCM5365 MIB counters */ static const struct b53_mib_desc b53_mibs_65[] = { { 8, 0x00, "TxOctets" }, { 4, 0x08, "TxDropPkts" }, { 4, 0x10, "TxBroadcastPkts" }, { 4, 0x14, "TxMulticastPkts" }, { 4, 0x18, "TxUnicastPkts" }, { 4, 0x1c, "TxCollisions" }, { 4, 0x20, "TxSingleCollision" }, { 4, 0x24, "TxMultipleCollision" }, { 4, 0x28, "TxDeferredTransmit" }, { 4, 0x2c, "TxLateCollision" }, { 4, 0x30, "TxExcessiveCollision" }, { 4, 0x38, "TxPausePkts" }, { 8, 0x44, "RxOctets" }, { 4, 0x4c, "RxUndersizePkts" }, { 4, 0x50, "RxPausePkts" }, { 4, 0x54, "Pkts64Octets" }, { 4, 0x58, "Pkts65to127Octets" }, { 4, 0x5c, "Pkts128to255Octets" }, { 4, 0x60, "Pkts256to511Octets" }, { 4, 0x64, "Pkts512to1023Octets" }, { 4, 0x68, "Pkts1024to1522Octets" }, { 4, 0x6c, "RxOversizePkts" }, { 4, 0x70, "RxJabbers" }, { 4, 0x74, "RxAlignmentErrors" }, { 4, 0x78, "RxFCSErrors" }, { 8, 0x7c, "RxGoodOctets" }, { 4, 0x84, "RxDropPkts" }, { 4, 0x88, "RxUnicastPkts" }, { 4, 0x8c, "RxMulticastPkts" }, { 4, 0x90, "RxBroadcastPkts" }, { 4, 0x94, "RxSAChanges" }, { 4, 0x98, "RxFragments" }, { }, }; /* BCM63xx MIB counters */ static const struct b53_mib_desc b53_mibs_63xx[] = { { 8, 0x00, "TxOctets" }, { 4, 0x08, "TxDropPkts" }, { 4, 0x0c, "TxQoSPkts" }, { 4, 0x10, "TxBroadcastPkts" }, { 4, 0x14, "TxMulticastPkts" }, { 4, 0x18, "TxUnicastPkts" }, { 4, 0x1c, "TxCollisions" }, { 4, 0x20, "TxSingleCollision" }, { 4, 0x24, "TxMultipleCollision" }, { 4, 0x28, "TxDeferredTransmit" }, { 4, 0x2c, "TxLateCollision" }, { 4, 0x30, "TxExcessiveCollision" }, { 4, 0x38, "TxPausePkts" }, { 8, 0x3c, "TxQoSOctets" }, { 8, 0x44, "RxOctets" }, { 4, 0x4c, "RxUndersizePkts" }, { 4, 0x50, "RxPausePkts" }, { 4, 0x54, "Pkts64Octets" }, { 4, 0x58, "Pkts65to127Octets" }, { 4, 0x5c, "Pkts128to255Octets" }, { 4, 0x60, "Pkts256to511Octets" }, { 4, 0x64, "Pkts512to1023Octets" }, { 4, 0x68, "Pkts1024to1522Octets" }, { 4, 0x6c, "RxOversizePkts" }, { 4, 0x70, "RxJabbers" }, { 4, 0x74, "RxAlignmentErrors" }, { 4, 0x78, "RxFCSErrors" }, { 8, 0x7c, "RxGoodOctets" }, { 4, 0x84, "RxDropPkts" }, { 4, 0x88, "RxUnicastPkts" }, { 4, 0x8c, "RxMulticastPkts" }, { 4, 0x90, "RxBroadcastPkts" }, { 4, 0x94, "RxSAChanges" }, { 4, 0x98, "RxFragments" }, { 4, 0xa0, "RxSymbolErrors" }, { 4, 0xa4, "RxQoSPkts" }, { 8, 0xa8, "RxQoSOctets" }, { 4, 0xb0, "Pkts1523to2047Octets" }, { 4, 0xb4, "Pkts2048to4095Octets" }, { 4, 0xb8, "Pkts4096to8191Octets" }, { 4, 0xbc, "Pkts8192to9728Octets" }, { 4, 0xc0, "RxDiscarded" }, { } }; /* MIB counters */ static const struct b53_mib_desc b53_mibs[] = { { 8, 0x00, "TxOctets" }, { 4, 0x08, "TxDropPkts" }, { 4, 0x10, "TxBroadcastPkts" }, { 4, 0x14, "TxMulticastPkts" }, { 4, 0x18, "TxUnicastPkts" }, { 4, 0x1c, "TxCollisions" }, { 4, 0x20, "TxSingleCollision" }, { 4, 0x24, "TxMultipleCollision" }, { 4, 0x28, "TxDeferredTransmit" }, { 4, 0x2c, "TxLateCollision" }, { 4, 0x30, "TxExcessiveCollision" }, { 4, 0x38, "TxPausePkts" }, { 8, 0x50, "RxOctets" }, { 4, 0x58, "RxUndersizePkts" }, { 4, 0x5c, "RxPausePkts" }, { 4, 0x60, "Pkts64Octets" }, { 4, 0x64, "Pkts65to127Octets" }, { 4, 0x68, "Pkts128to255Octets" }, { 4, 0x6c, "Pkts256to511Octets" }, { 4, 0x70, "Pkts512to1023Octets" }, { 4, 0x74, "Pkts1024to1522Octets" }, { 4, 0x78, "RxOversizePkts" }, { 4, 0x7c, "RxJabbers" }, { 4, 0x80, "RxAlignmentErrors" }, { 4, 0x84, "RxFCSErrors" }, { 8, 0x88, "RxGoodOctets" }, { 4, 0x90, "RxDropPkts" }, { 4, 0x94, "RxUnicastPkts" }, { 4, 0x98, "RxMulticastPkts" }, { 4, 0x9c, "RxBroadcastPkts" }, { 4, 0xa0, "RxSAChanges" }, { 4, 0xa4, "RxFragments" }, { 4, 0xa8, "RxJumboPkts" }, { 4, 0xac, "RxSymbolErrors" }, { 4, 0xc0, "RxDiscarded" }, { } }; static int b53_do_vlan_op(struct b53_device *dev, u8 op) { unsigned int i; b53_write8(dev, B53_ARLIO_PAGE, dev->vta_regs[0], VTA_START_CMD | op); for (i = 0; i < 10; i++) { u8 vta; b53_read8(dev, B53_ARLIO_PAGE, dev->vta_regs[0], &vta); if (!(vta & VTA_START_CMD)) return 0; usleep_range(100, 200); } return -EIO; } static void b53_set_vlan_entry(struct b53_device *dev, u16 vid, u16 members, u16 untag) { if (is5325(dev)) { u32 entry = 0; if (members) { entry = ((untag & VA_UNTAG_MASK_25) << VA_UNTAG_S_25) | members; if (dev->core_rev >= 3) entry |= VA_VALID_25_R4 | vid << VA_VID_HIGH_S; else entry |= VA_VALID_25; } b53_write32(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_25, entry); b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, vid | VTA_RW_STATE_WR | VTA_RW_OP_EN); } else if (is5365(dev)) { u16 entry = 0; if (members) entry = ((untag & VA_UNTAG_MASK_65) << VA_UNTAG_S_65) | members | VA_VALID_65; b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_65, entry); b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_65, vid | VTA_RW_STATE_WR | VTA_RW_OP_EN); } else { b53_write16(dev, B53_ARLIO_PAGE, dev->vta_regs[1], vid); b53_write32(dev, B53_ARLIO_PAGE, dev->vta_regs[2], (untag << VTE_UNTAG_S) | members); b53_do_vlan_op(dev, VTA_CMD_WRITE); } } void b53_set_forwarding(struct b53_device *dev, int enable) { u8 mgmt; b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt); if (enable) mgmt |= SM_SW_FWD_EN; else mgmt &= ~SM_SW_FWD_EN; b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt); } static void b53_enable_vlan(struct b53_device *dev, int enable) { u8 mgmt, vc0, vc1, vc4 = 0, vc5; b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt); b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL0, &vc0); b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL1, &vc1); if (is5325(dev) || is5365(dev)) { b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, &vc4); b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_25, &vc5); } else if (is63xx(dev)) { b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_63XX, &vc4); b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_63XX, &vc5); } else { b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4, &vc4); b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, &vc5); } mgmt &= ~SM_SW_FWD_MODE; if (enable) { vc0 |= VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID; vc1 |= VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN; vc4 &= ~VC4_ING_VID_CHECK_MASK; vc4 |= VC4_ING_VID_VIO_DROP << VC4_ING_VID_CHECK_S; vc5 |= VC5_DROP_VTABLE_MISS; if (is5325(dev)) vc0 &= ~VC0_RESERVED_1; if (is5325(dev) || is5365(dev)) vc1 |= VC1_RX_MCST_TAG_EN; if (!is5325(dev) && !is5365(dev)) { if (dev->allow_vid_4095) vc5 |= VC5_VID_FFF_EN; else vc5 &= ~VC5_VID_FFF_EN; } } else { vc0 &= ~(VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID); vc1 &= ~(VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN); vc4 &= ~VC4_ING_VID_CHECK_MASK; vc5 &= ~VC5_DROP_VTABLE_MISS; if (is5325(dev) || is5365(dev)) vc4 |= VC4_ING_VID_VIO_FWD << VC4_ING_VID_CHECK_S; else vc4 |= VC4_ING_VID_VIO_TO_IMP << VC4_ING_VID_CHECK_S; if (is5325(dev) || is5365(dev)) vc1 &= ~VC1_RX_MCST_TAG_EN; if (!is5325(dev) && !is5365(dev)) vc5 &= ~VC5_VID_FFF_EN; } b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL0, vc0); b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL1, vc1); if (is5325(dev) || is5365(dev)) { /* enable the high 8 bit vid check on 5325 */ if (is5325(dev) && enable) b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, VC3_HIGH_8BIT_EN); else b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, 0); b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, vc4); b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_25, vc5); } else if (is63xx(dev)) { b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3_63XX, 0); b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_63XX, vc4); b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_63XX, vc5); } else { b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, 0); b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4, vc4); b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, vc5); } b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt); } static int b53_set_jumbo(struct b53_device *dev, int enable, int allow_10_100) { u32 port_mask = 0; u16 max_size = JMS_MIN_SIZE; if (is5325(dev) || is5365(dev)) return -EINVAL; if (enable) { port_mask = dev->enabled_ports; max_size = JMS_MAX_SIZE; if (allow_10_100) port_mask |= JPM_10_100_JUMBO_EN; } b53_write32(dev, B53_JUMBO_PAGE, dev->jumbo_pm_reg, port_mask); return b53_write16(dev, B53_JUMBO_PAGE, dev->jumbo_size_reg, max_size); } static int b53_flush_arl(struct b53_device *dev) { unsigned int i; b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL, FAST_AGE_DONE | FAST_AGE_DYNAMIC | FAST_AGE_STATIC); for (i = 0; i < 10; i++) { u8 fast_age_ctrl; b53_read8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL, &fast_age_ctrl); if (!(fast_age_ctrl & FAST_AGE_DONE)) return 0; mdelay(1); } pr_warn("time out while flushing ARL\n"); return -EINVAL; } static void b53_enable_ports(struct b53_device *dev) { unsigned i; b53_for_each_port(dev, i) { u8 port_ctrl; u16 pvlan_mask; /* * prevent leaking packets between wan and lan in unmanaged * mode through port vlans. */ if (dev->enable_vlan || is_cpu_port(dev, i)) pvlan_mask = 0x1ff; else if (is531x5(dev) || is5301x(dev)) /* BCM53115 may use a different port as cpu port */ pvlan_mask = BIT(dev->sw_dev.cpu_port); else pvlan_mask = BIT(B53_CPU_PORT); /* BCM5325 CPU port is at 8 */ if ((is5325(dev) || is5365(dev)) && i == B53_CPU_PORT_25) i = B53_CPU_PORT; if (dev->chip_id == BCM5398_DEVICE_ID && (i == 6 || i == 7)) /* disable unused ports 6 & 7 */ port_ctrl = PORT_CTRL_RX_DISABLE | PORT_CTRL_TX_DISABLE; else if (i == B53_CPU_PORT) port_ctrl = PORT_CTRL_RX_BCST_EN | PORT_CTRL_RX_MCST_EN | PORT_CTRL_RX_UCST_EN; else port_ctrl = 0; b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), pvlan_mask); /* port state is handled by bcm63xx_enet driver */ if (!is63xx(dev) && !(is5301x(dev) && i == 6)) b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(i), port_ctrl); } } static void b53_enable_mib(struct b53_device *dev) { u8 gc; b53_read8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &gc); gc &= ~(GC_RESET_MIB | GC_MIB_AC_EN); b53_write8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc); } static int b53_apply(struct b53_device *dev) { int i; /* clear all vlan entries */ if (is5325(dev) || is5365(dev)) { for (i = 1; i < dev->sw_dev.vlans; i++) b53_set_vlan_entry(dev, i, 0, 0); } else { b53_do_vlan_op(dev, VTA_CMD_CLEAR); } b53_enable_vlan(dev, dev->enable_vlan); /* fill VLAN table */ if (dev->enable_vlan) { for (i = 0; i < dev->sw_dev.vlans; i++) { struct b53_vlan *vlan = &dev->vlans[i]; if (!vlan->members) continue; b53_set_vlan_entry(dev, i, vlan->members, vlan->untag); } b53_for_each_port(dev, i) b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(i), dev->ports[i].pvid); } else { b53_for_each_port(dev, i) b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(i), 1); } b53_enable_ports(dev); if (!is5325(dev) && !is5365(dev)) b53_set_jumbo(dev, dev->enable_jumbo, 1); return 0; } static void b53_switch_reset_gpio(struct b53_device *dev) { int gpio = dev->reset_gpio; if (gpio < 0) return; /* * Reset sequence: RESET low(50ms)->high(20ms) */ gpio_set_value(gpio, 0); mdelay(50); gpio_set_value(gpio, 1); mdelay(20); dev->current_page = 0xff; } static int b53_switch_reset(struct b53_device *dev) { u8 cpu_port = dev->sw_dev.cpu_port; u8 mgmt; b53_switch_reset_gpio(dev); if (is539x(dev)) { b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, 0x83); b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, 0x00); } b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt); if (!(mgmt & SM_SW_FWD_EN)) { mgmt &= ~SM_SW_FWD_MODE; mgmt |= SM_SW_FWD_EN; b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt); b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt); if (!(mgmt & SM_SW_FWD_EN)) { pr_err("Failed to enable switch!\n"); return -EINVAL; } } /* enable all ports */ b53_enable_ports(dev); /* configure MII port if necessary */ if (is5325(dev)) { u8 mii_port_override; b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL, &mii_port_override); /* reverse mii needs to be enabled */ if (!(mii_port_override & PORT_OVERRIDE_RV_MII_25)) { b53_write8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL, mii_port_override | PORT_OVERRIDE_RV_MII_25); b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL, &mii_port_override); if (!(mii_port_override & PORT_OVERRIDE_RV_MII_25)) { pr_err("Failed to enable reverse MII mode\n"); return -EINVAL; } } } else if (is531x5(dev) && cpu_port == B53_CPU_PORT) { u8 mii_port_override; b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL, &mii_port_override); b53_write8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL, mii_port_override | PORT_OVERRIDE_EN | PORT_OVERRIDE_LINK); } else if (is5301x(dev)) { if (cpu_port == 8) { u8 mii_port_override; b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL, &mii_port_override); mii_port_override |= PORT_OVERRIDE_LINK | PORT_OVERRIDE_RX_FLOW | PORT_OVERRIDE_TX_FLOW | PORT_OVERRIDE_SPEED_2000M | PORT_OVERRIDE_EN; b53_write8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL, mii_port_override); /* TODO: Ports 5 & 7 require some extra handling */ } else { u8 po_reg = B53_GMII_PORT_OVERRIDE_CTRL(cpu_port); u8 gmii_po; b53_read8(dev, B53_CTRL_PAGE, po_reg, &gmii_po); gmii_po |= GMII_PO_LINK | GMII_PO_RX_FLOW | GMII_PO_TX_FLOW | GMII_PO_EN | GMII_PO_SPEED_2000M; b53_write8(dev, B53_CTRL_PAGE, po_reg, gmii_po); } } b53_enable_mib(dev); return b53_flush_arl(dev); } /* * Swconfig glue functions */ static int b53_global_get_vlan_enable(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) { struct b53_device *priv = sw_to_b53(dev); val->value.i = priv->enable_vlan; return 0; } static int b53_global_set_vlan_enable(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) { struct b53_device *priv = sw_to_b53(dev); priv->enable_vlan = val->value.i; return 0; } static int b53_global_get_jumbo_enable(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) { struct b53_device *priv = sw_to_b53(dev); val->value.i = priv->enable_jumbo; return 0; } static int b53_global_set_jumbo_enable(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) { struct b53_device *priv = sw_to_b53(dev); priv->enable_jumbo = val->value.i; return 0; } static int b53_global_get_4095_enable(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) { struct b53_device *priv = sw_to_b53(dev); val->value.i = priv->allow_vid_4095; return 0; } static int b53_global_set_4095_enable(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) { struct b53_device *priv = sw_to_b53(dev); priv->allow_vid_4095 = val->value.i; return 0; } static int b53_global_get_ports(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) { struct b53_device *priv = sw_to_b53(dev); val->len = snprintf(priv->buf, B53_BUF_SIZE, "0x%04x", priv->enabled_ports); val->value.s = priv->buf; return 0; } static int b53_port_get_pvid(struct switch_dev *dev, int port, int *val) { struct b53_device *priv = sw_to_b53(dev); *val = priv->ports[port].pvid; return 0; } static int b53_port_set_pvid(struct switch_dev *dev, int port, int val) { struct b53_device *priv = sw_to_b53(dev); if (val > 15 && is5325(priv)) return -EINVAL; if (val == 4095 && !priv->allow_vid_4095) return -EINVAL; priv->ports[port].pvid = val; return 0; } static int b53_vlan_get_ports(struct switch_dev *dev, struct switch_val *val) { struct b53_device *priv = sw_to_b53(dev); struct switch_port *port = &val->value.ports[0]; struct b53_vlan *vlan = &priv->vlans[val->port_vlan]; int i; val->len = 0; if (!vlan->members) return 0; for (i = 0; i < dev->ports; i++) { if (!(vlan->members & BIT(i))) continue; if (!(vlan->untag & BIT(i))) port->flags = BIT(SWITCH_PORT_FLAG_TAGGED); else port->flags = 0; port->id = i; val->len++; port++; } return 0; } static int b53_vlan_set_ports(struct switch_dev *dev, struct switch_val *val) { struct b53_device *priv = sw_to_b53(dev); struct switch_port *port; struct b53_vlan *vlan = &priv->vlans[val->port_vlan]; int i; /* only BCM5325 and BCM5365 supports VID 0 */ if (val->port_vlan == 0 && !is5325(priv) && !is5365(priv)) return -EINVAL; /* VLAN 4095 needs special handling */ if (val->port_vlan == 4095 && !priv->allow_vid_4095) return -EINVAL; port = &val->value.ports[0]; vlan->members = 0; vlan->untag = 0; for (i = 0; i < val->len; i++, port++) { vlan->members |= BIT(port->id); if (!(port->flags & BIT(SWITCH_PORT_FLAG_TAGGED))) { vlan->untag |= BIT(port->id); priv->ports[port->id].pvid = val->port_vlan; }; } /* ignore disabled ports */ vlan->members &= priv->enabled_ports; vlan->untag &= priv->enabled_ports; return 0; } static int b53_port_get_link(struct switch_dev *dev, int port, struct switch_port_link *link) { struct b53_device *priv = sw_to_b53(dev); if (is_cpu_port(priv, port)) { link->link = 1; link->duplex = 1; link->speed = is5325(priv) || is5365(priv) ? SWITCH_PORT_SPEED_100 : SWITCH_PORT_SPEED_1000; link->aneg = 0; } else if (priv->enabled_ports & BIT(port)) { u32 speed; u16 lnk, duplex; b53_read16(priv, B53_STAT_PAGE, B53_LINK_STAT, &lnk); b53_read16(priv, B53_STAT_PAGE, priv->duplex_reg, &duplex); lnk = (lnk >> port) & 1; duplex = (duplex >> port) & 1; if (is5325(priv) || is5365(priv)) { u16 tmp; b53_read16(priv, B53_STAT_PAGE, B53_SPEED_STAT, &tmp); speed = SPEED_PORT_FE(tmp, port); } else { b53_read32(priv, B53_STAT_PAGE, B53_SPEED_STAT, &speed); speed = SPEED_PORT_GE(speed, port); } link->link = lnk; if (lnk) { link->duplex = duplex; switch (speed) { case SPEED_STAT_10M: link->speed = SWITCH_PORT_SPEED_10; break; case SPEED_STAT_100M: link->speed = SWITCH_PORT_SPEED_100; break; case SPEED_STAT_1000M: link->speed = SWITCH_PORT_SPEED_1000; break; } } link->aneg = 1; } else { link->link = 0; } return 0; } static int b53_global_reset_switch(struct switch_dev *dev) { struct b53_device *priv = sw_to_b53(dev); /* reset vlans */ priv->enable_vlan = 0; priv->enable_jumbo = 0; priv->allow_vid_4095 = 0; memset(priv->vlans, 0, sizeof(*priv->vlans) * dev->vlans); memset(priv->ports, 0, sizeof(*priv->ports) * dev->ports); return b53_switch_reset(priv); } static int b53_global_apply_config(struct switch_dev *dev) { struct b53_device *priv = sw_to_b53(dev); /* disable switching */ b53_set_forwarding(priv, 0); b53_apply(priv); /* enable switching */ b53_set_forwarding(priv, 1); return 0; } static int b53_global_reset_mib(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) { struct b53_device *priv = sw_to_b53(dev); u8 gc; b53_read8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &gc); b53_write8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc | GC_RESET_MIB); mdelay(1); b53_write8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc & ~GC_RESET_MIB); mdelay(1); return 0; } static int b53_port_get_mib(struct switch_dev *sw_dev, const struct switch_attr *attr, struct switch_val *val) { struct b53_device *dev = sw_to_b53(sw_dev); const struct b53_mib_desc *mibs; int port = val->port_vlan; int len = 0; if (!(BIT(port) & dev->enabled_ports)) return -1; if (is5365(dev)) { if (port == 5) port = 8; mibs = b53_mibs_65; } else if (is63xx(dev)) { mibs = b53_mibs_63xx; } else { mibs = b53_mibs; } dev->buf[0] = 0; for (; mibs->size > 0; mibs++) { u64 val; if (mibs->size == 8) { b53_read64(dev, B53_MIB_PAGE(port), mibs->offset, &val); } else { u32 val32; b53_read32(dev, B53_MIB_PAGE(port), mibs->offset, &val32); val = val32; } len += snprintf(dev->buf + len, B53_BUF_SIZE - len, "%-20s: %llu\n", mibs->name, val); } val->len = len; val->value.s = dev->buf; return 0; } static struct switch_attr b53_global_ops_25[] = { { .type = SWITCH_TYPE_INT, .name = "enable_vlan", .description = "Enable VLAN mode", .set = b53_global_set_vlan_enable, .get = b53_global_get_vlan_enable, .max = 1, }, { .type = SWITCH_TYPE_STRING, .name = "ports", .description = "Available ports (as bitmask)", .get = b53_global_get_ports, }, }; static struct switch_attr b53_global_ops_65[] = { { .type = SWITCH_TYPE_INT, .name = "enable_vlan", .description = "Enable VLAN mode", .set = b53_global_set_vlan_enable, .get = b53_global_get_vlan_enable, .max = 1, }, { .type = SWITCH_TYPE_STRING, .name = "ports", .description = "Available ports (as bitmask)", .get = b53_global_get_ports, }, { .type = SWITCH_TYPE_INT, .name = "reset_mib", .description = "Reset MIB counters", .set = b53_global_reset_mib, }, }; static struct switch_attr b53_global_ops[] = { { .type = SWITCH_TYPE_INT, .name = "enable_vlan", .description = "Enable VLAN mode", .set = b53_global_set_vlan_enable, .get = b53_global_get_vlan_enable, .max = 1, }, { .type = SWITCH_TYPE_STRING, .name = "ports", .description = "Available Ports (as bitmask)", .get = b53_global_get_ports, }, { .type = SWITCH_TYPE_INT, .name = "reset_mib", .description = "Reset MIB counters", .set = b53_global_reset_mib, }, { .type = SWITCH_TYPE_INT, .name = "enable_jumbo", .description = "Enable Jumbo Frames", .set = b53_global_set_jumbo_enable, .get = b53_global_get_jumbo_enable, .max = 1, }, { .type = SWITCH_TYPE_INT, .name = "allow_vid_4095", .description = "Allow VID 4095", .set = b53_global_set_4095_enable, .get = b53_global_get_4095_enable, .max = 1, }, }; static struct switch_attr b53_port_ops[] = { { .type = SWITCH_TYPE_STRING, .name = "mib", .description = "Get port's MIB counters", .get = b53_port_get_mib, }, }; static struct switch_attr b53_no_ops[] = { }; static const struct switch_dev_ops b53_switch_ops_25 = { .attr_global = { .attr = b53_global_ops_25, .n_attr = ARRAY_SIZE(b53_global_ops_25), }, .attr_port = { .attr = b53_no_ops, .n_attr = ARRAY_SIZE(b53_no_ops), }, .attr_vlan = { .attr = b53_no_ops, .n_attr = ARRAY_SIZE(b53_no_ops), }, .get_vlan_ports = b53_vlan_get_ports, .set_vlan_ports = b53_vlan_set_ports, .get_port_pvid = b53_port_get_pvid, .set_port_pvid = b53_port_set_pvid, .apply_config = b53_global_apply_config, .reset_switch = b53_global_reset_switch, .get_port_link = b53_port_get_link, }; static const struct switch_dev_ops b53_switch_ops_65 = { .attr_global = { .attr = b53_global_ops_65, .n_attr = ARRAY_SIZE(b53_global_ops_65), }, .attr_port = { .attr = b53_port_ops, .n_attr = ARRAY_SIZE(b53_port_ops), }, .attr_vlan = { .attr = b53_no_ops, .n_attr = ARRAY_SIZE(b53_no_ops), }, .get_vlan_ports = b53_vlan_get_ports, .set_vlan_ports = b53_vlan_set_ports, .get_port_pvid = b53_port_get_pvid, .set_port_pvid = b53_port_set_pvid, .apply_config = b53_global_apply_config, .reset_switch = b53_global_reset_switch, .get_port_link = b53_port_get_link, }; static const struct switch_dev_ops b53_switch_ops = { .attr_global = { .attr = b53_global_ops, .n_attr = ARRAY_SIZE(b53_global_ops), }, .attr_port = { .attr = b53_port_ops, .n_attr = ARRAY_SIZE(b53_port_ops), }, .attr_vlan = { .attr = b53_no_ops, .n_attr = ARRAY_SIZE(b53_no_ops), }, .get_vlan_ports = b53_vlan_get_ports, .set_vlan_ports = b53_vlan_set_ports, .get_port_pvid = b53_port_get_pvid, .set_port_pvid = b53_port_set_pvid, .apply_config = b53_global_apply_config, .reset_switch = b53_global_reset_switch, .get_port_link = b53_port_get_link, }; struct b53_chip_data { u32 chip_id; const char *dev_name; const char *alias; u16 vlans; u16 enabled_ports; u8 cpu_port; u8 vta_regs[3]; u8 duplex_reg; u8 jumbo_pm_reg; u8 jumbo_size_reg; const struct switch_dev_ops *sw_ops; }; #define B53_VTA_REGS \ { B53_VT_ACCESS, B53_VT_INDEX, B53_VT_ENTRY } #define B53_VTA_REGS_9798 \ { B53_VT_ACCESS_9798, B53_VT_INDEX_9798, B53_VT_ENTRY_9798 } #define B53_VTA_REGS_63XX \ { B53_VT_ACCESS_63XX, B53_VT_INDEX_63XX, B53_VT_ENTRY_63XX } static const struct b53_chip_data b53_switch_chips[] = { { .chip_id = BCM5325_DEVICE_ID, .dev_name = "BCM5325", .alias = "bcm5325", .vlans = 16, .enabled_ports = 0x1f, .cpu_port = B53_CPU_PORT_25, .duplex_reg = B53_DUPLEX_STAT_FE, .sw_ops = &b53_switch_ops_25, }, { .chip_id = BCM5365_DEVICE_ID, .dev_name = "BCM5365", .alias = "bcm5365", .vlans = 256, .enabled_ports = 0x1f, .cpu_port = B53_CPU_PORT_25, .duplex_reg = B53_DUPLEX_STAT_FE, .sw_ops = &b53_switch_ops_65, }, { .chip_id = BCM5395_DEVICE_ID, .dev_name = "BCM5395", .alias = "bcm5395", .vlans = 4096, .enabled_ports = 0x1f, .cpu_port = B53_CPU_PORT, .vta_regs = B53_VTA_REGS, .duplex_reg = B53_DUPLEX_STAT_GE, .jumbo_pm_reg = B53_JUMBO_PORT_MASK, .jumbo_size_reg = B53_JUMBO_MAX_SIZE, .sw_ops = &b53_switch_ops, }, { .chip_id = BCM5397_DEVICE_ID, .dev_name = "BCM5397", .alias = "bcm5397", .vlans = 4096, .enabled_ports = 0x1f, .cpu_port = B53_CPU_PORT, .vta_regs = B53_VTA_REGS_9798, .duplex_reg = B53_DUPLEX_STAT_GE, .jumbo_pm_reg = B53_JUMBO_PORT_MASK, .jumbo_size_reg = B53_JUMBO_MAX_SIZE, .sw_ops = &b53_switch_ops, }, { .chip_id = BCM5398_DEVICE_ID, .dev_name = "BCM5398", .alias = "bcm5398", .vlans = 4096, .enabled_ports = 0x7f, .cpu_port = B53_CPU_PORT, .vta_regs = B53_VTA_REGS_9798, .duplex_reg = B53_DUPLEX_STAT_GE, .jumbo_pm_reg = B53_JUMBO_PORT_MASK, .jumbo_size_reg = B53_JUMBO_MAX_SIZE, .sw_ops = &b53_switch_ops, }, { .chip_id = BCM53115_DEVICE_ID, .dev_name = "BCM53115", .alias = "bcm53115", .vlans = 4096, .enabled_ports = 0x1f, .vta_regs = B53_VTA_REGS, .cpu_port = B53_CPU_PORT, .duplex_reg = B53_DUPLEX_STAT_GE, .jumbo_pm_reg = B53_JUMBO_PORT_MASK, .jumbo_size_reg = B53_JUMBO_MAX_SIZE, .sw_ops = &b53_switch_ops, }, { .chip_id = BCM53125_DEVICE_ID, .dev_name = "BCM53125", .alias = "bcm53125", .vlans = 4096, .enabled_ports = 0x1f, .cpu_port = B53_CPU_PORT, .vta_regs = B53_VTA_REGS, .duplex_reg = B53_DUPLEX_STAT_GE, .jumbo_pm_reg = B53_JUMBO_PORT_MASK, .jumbo_size_reg = B53_JUMBO_MAX_SIZE, .sw_ops = &b53_switch_ops, }, { .chip_id = BCM53128_DEVICE_ID, .dev_name = "BCM53128", .alias = "bcm53128", .vlans = 4096, .enabled_ports = 0x1ff, .cpu_port = B53_CPU_PORT, .vta_regs = B53_VTA_REGS, .duplex_reg = B53_DUPLEX_STAT_GE, .jumbo_pm_reg = B53_JUMBO_PORT_MASK, .jumbo_size_reg = B53_JUMBO_MAX_SIZE, .sw_ops = &b53_switch_ops, }, { .chip_id = BCM63XX_DEVICE_ID, .dev_name = "BCM63xx", .alias = "bcm63xx", .vlans = 4096, .enabled_ports = 0, /* pdata must provide them */ .cpu_port = B53_CPU_PORT, .vta_regs = B53_VTA_REGS_63XX, .duplex_reg = B53_DUPLEX_STAT_63XX, .jumbo_pm_reg = B53_JUMBO_PORT_MASK_63XX, .jumbo_size_reg = B53_JUMBO_MAX_SIZE_63XX, .sw_ops = &b53_switch_ops, }, { .chip_id = BCM53010_DEVICE_ID, .dev_name = "BCM53010", .alias = "bcm53011", .vlans = 4096, .enabled_ports = 0x1f, .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */ .vta_regs = B53_VTA_REGS, .duplex_reg = B53_DUPLEX_STAT_GE, .jumbo_pm_reg = B53_JUMBO_PORT_MASK, .jumbo_size_reg = B53_JUMBO_MAX_SIZE, .sw_ops = &b53_switch_ops, }, { .chip_id = BCM53011_DEVICE_ID, .dev_name = "BCM53011", .alias = "bcm53011", .vlans = 4096, .enabled_ports = 0x1bf, .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */ .vta_regs = B53_VTA_REGS, .duplex_reg = B53_DUPLEX_STAT_GE, .jumbo_pm_reg = B53_JUMBO_PORT_MASK, .jumbo_size_reg = B53_JUMBO_MAX_SIZE, .sw_ops = &b53_switch_ops, }, { .chip_id = BCM53012_DEVICE_ID, .dev_name = "BCM53012", .alias = "bcm53011", .vlans = 4096, .enabled_ports = 0x1bf, .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */ .vta_regs = B53_VTA_REGS, .duplex_reg = B53_DUPLEX_STAT_GE, .jumbo_pm_reg = B53_JUMBO_PORT_MASK, .jumbo_size_reg = B53_JUMBO_MAX_SIZE, .sw_ops = &b53_switch_ops, }, { .chip_id = BCM53018_DEVICE_ID, .dev_name = "BCM53018", .alias = "bcm53018", .vlans = 4096, .enabled_ports = 0x1f, .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */ .vta_regs = B53_VTA_REGS, .duplex_reg = B53_DUPLEX_STAT_GE, .jumbo_pm_reg = B53_JUMBO_PORT_MASK, .jumbo_size_reg = B53_JUMBO_MAX_SIZE, .sw_ops = &b53_switch_ops, }, { .chip_id = BCM53019_DEVICE_ID, .dev_name = "BCM53019", .alias = "bcm53019", .vlans = 4096, .enabled_ports = 0x1f, .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */ .vta_regs = B53_VTA_REGS, .duplex_reg = B53_DUPLEX_STAT_GE, .jumbo_pm_reg = B53_JUMBO_PORT_MASK, .jumbo_size_reg = B53_JUMBO_MAX_SIZE, .sw_ops = &b53_switch_ops, }, }; static int b53_switch_init(struct b53_device *dev) { struct switch_dev *sw_dev = &dev->sw_dev; unsigned i; int ret; for (i = 0; i < ARRAY_SIZE(b53_switch_chips); i++) { const struct b53_chip_data *chip = &b53_switch_chips[i]; if (chip->chip_id == dev->chip_id) { sw_dev->name = chip->dev_name; if (!sw_dev->alias) sw_dev->alias = chip->alias; if (!dev->enabled_ports) dev->enabled_ports = chip->enabled_ports; dev->duplex_reg = chip->duplex_reg; dev->vta_regs[0] = chip->vta_regs[0]; dev->vta_regs[1] = chip->vta_regs[1]; dev->vta_regs[2] = chip->vta_regs[2]; dev->jumbo_pm_reg = chip->jumbo_pm_reg; sw_dev->ops = chip->sw_ops; sw_dev->cpu_port = chip->cpu_port; sw_dev->vlans = chip->vlans; break; } } if (!sw_dev->name) return -EINVAL; /* check which BCM5325x version we have */ if (is5325(dev)) { u8 vc4; b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, &vc4); /* check reserved bits */ switch (vc4 & 3) { case 1: /* BCM5325E */ break; case 3: /* BCM5325F - do not use port 4 */ dev->enabled_ports &= ~BIT(4); break; default: /* On the BCM47XX SoCs this is the supported internal switch.*/ #ifndef CONFIG_BCM47XX /* BCM5325M */ return -EINVAL; #else break; #endif } } else if (dev->chip_id == BCM53115_DEVICE_ID) { u64 strap_value; b53_read48(dev, B53_STAT_PAGE, B53_STRAP_VALUE, &strap_value); /* use second IMP port if GMII is enabled */ if (strap_value & SV_GMII_CTRL_115) sw_dev->cpu_port = 5; } /* cpu port is always last */ sw_dev->ports = sw_dev->cpu_port + 1; dev->enabled_ports |= BIT(sw_dev->cpu_port); dev->ports = devm_kzalloc(dev->dev, sizeof(struct b53_port) * sw_dev->ports, GFP_KERNEL); if (!dev->ports) return -ENOMEM; dev->vlans = devm_kzalloc(dev->dev, sizeof(struct b53_vlan) * sw_dev->vlans, GFP_KERNEL); if (!dev->vlans) return -ENOMEM; dev->buf = devm_kzalloc(dev->dev, B53_BUF_SIZE, GFP_KERNEL); if (!dev->buf) return -ENOMEM; dev->reset_gpio = b53_switch_get_reset_gpio(dev); if (dev->reset_gpio >= 0) { ret = devm_gpio_request_one(dev->dev, dev->reset_gpio, GPIOF_OUT_INIT_HIGH, "robo_reset"); if (ret) return ret; } return b53_switch_reset(dev); } struct b53_device *b53_switch_alloc(struct device *base, struct b53_io_ops *ops, void *priv) { struct b53_device *dev; dev = devm_kzalloc(base, sizeof(*dev), GFP_KERNEL); if (!dev) return NULL; dev->dev = base; dev->ops = ops; dev->priv = priv; mutex_init(&dev->reg_mutex); return dev; } EXPORT_SYMBOL(b53_switch_alloc); int b53_switch_detect(struct b53_device *dev) { u32 id32; u16 tmp; u8 id8; int ret; ret = b53_read8(dev, B53_MGMT_PAGE, B53_DEVICE_ID, &id8); if (ret) return ret; switch (id8) { case 0: /* * BCM5325 and BCM5365 do not have this register so reads * return 0. But the read operation did succeed, so assume * this is one of them. * * Next check if we can write to the 5325's VTA register; for * 5365 it is read only. */ b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, 0xf); b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, &tmp); if (tmp == 0xf) dev->chip_id = BCM5325_DEVICE_ID; else dev->chip_id = BCM5365_DEVICE_ID; break; case BCM5395_DEVICE_ID: case BCM5397_DEVICE_ID: case BCM5398_DEVICE_ID: dev->chip_id = id8; break; default: ret = b53_read32(dev, B53_MGMT_PAGE, B53_DEVICE_ID, &id32); if (ret) return ret; switch (id32) { case BCM53115_DEVICE_ID: case BCM53125_DEVICE_ID: case BCM53128_DEVICE_ID: case BCM53010_DEVICE_ID: case BCM53011_DEVICE_ID: case BCM53012_DEVICE_ID: case BCM53018_DEVICE_ID: case BCM53019_DEVICE_ID: dev->chip_id = id32; break; default: pr_err("unsupported switch detected (BCM53%02x/BCM%x)\n", id8, id32); return -ENODEV; } } if (dev->chip_id == BCM5325_DEVICE_ID) return b53_read8(dev, B53_STAT_PAGE, B53_REV_ID_25, &dev->core_rev); else return b53_read8(dev, B53_MGMT_PAGE, B53_REV_ID, &dev->core_rev); } EXPORT_SYMBOL(b53_switch_detect); int b53_switch_register(struct b53_device *dev) { int ret; if (dev->pdata) { dev->chip_id = dev->pdata->chip_id; dev->enabled_ports = dev->pdata->enabled_ports; dev->sw_dev.alias = dev->pdata->alias; } if (!dev->chip_id && b53_switch_detect(dev)) return -EINVAL; ret = b53_switch_init(dev); if (ret) return ret; pr_info("found switch: %s, rev %i\n", dev->sw_dev.name, dev->core_rev); return register_switch(&dev->sw_dev, NULL); } EXPORT_SYMBOL(b53_switch_register); MODULE_AUTHOR("Jonas Gorski "); MODULE_DESCRIPTION("B53 switch library"); MODULE_LICENSE("Dual BSD/GPL");