| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Florian Fainelli | 12070 | 88.74% | 82 | 52.90% |
| Vladimir Oltean | 496 | 3.65% | 13 | 8.39% |
| Álvaro Fernández Rojas | 225 | 1.65% | 4 | 2.58% |
| Vivien Didelot | 168 | 1.24% | 16 | 10.32% |
| Rafał Miłecki | 167 | 1.23% | 5 | 3.23% |
| Russell King | 151 | 1.11% | 6 | 3.87% |
| Murali Krishna Policharla | 103 | 0.76% | 1 | 0.65% |
| Andrew Lunn | 36 | 0.26% | 4 | 2.58% |
| Arkadi Sharshevsky | 31 | 0.23% | 3 | 1.94% |
| Lennert Buytenhek | 25 | 0.18% | 1 | 0.65% |
| Paul Barker | 20 | 0.15% | 2 | 1.29% |
| Arun Parameswaran | 19 | 0.14% | 1 | 0.65% |
| Paul Geurts | 18 | 0.13% | 1 | 0.65% |
| Damien Thébault | 15 | 0.11% | 1 | 0.65% |
| Yury Norov | 10 | 0.07% | 1 | 0.65% |
| Kees Cook | 10 | 0.07% | 1 | 0.65% |
| Stephen Hemminger | 7 | 0.05% | 1 | 0.65% |
| Tom Rix | 7 | 0.05% | 1 | 0.65% |
| Gustavo A. R. Silva | 5 | 0.04% | 2 | 1.29% |
| Landen Chao | 5 | 0.04% | 1 | 0.65% |
| Heiner Kallweit | 4 | 0.03% | 1 | 0.65% |
| Benedikt Spranger | 2 | 0.01% | 1 | 0.65% |
| Jiri Pirko | 2 | 0.01% | 1 | 0.65% |
| Julia Lawall | 1 | 0.01% | 1 | 0.65% |
| JiSheng Zhang | 1 | 0.01% | 1 | 0.65% |
| Wolfram Sang | 1 | 0.01% | 1 | 0.65% |
| Linus Torvalds (pre-git) | 1 | 0.01% | 1 | 0.65% |
| Dan Carpenter | 1 | 0.01% | 1 | 0.65% |
| Total | 13601 | 155 |
/* * B53 switch driver main logic * * Copyright (C) 2011-2013 Jonas Gorski <jogo@openwrt.org> * Copyright (C) 2016 Florian Fainelli <f.fainelli@gmail.com> * * 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. */ #include <linux/delay.h> #include <linux/export.h> #include <linux/gpio.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/platform_data/b53.h> #include <linux/phy.h> #include <linux/phylink.h> #include <linux/etherdevice.h> #include <linux/if_bridge.h> #include <net/dsa.h> #include "b53_regs.h" #include "b53_priv.h" 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" }, }; #define B53_MIBS_65_SIZE ARRAY_SIZE(b53_mibs_65) /* 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" }, }; #define B53_MIBS_63XX_SIZE ARRAY_SIZE(b53_mibs_63xx) /* 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" }, }; #define B53_MIBS_SIZE ARRAY_SIZE(b53_mibs) static const struct b53_mib_desc b53_mibs_58xx[] = { { 8, 0x00, "TxOctets" }, { 4, 0x08, "TxDropPkts" }, { 4, 0x0c, "TxQPKTQ0" }, { 4, 0x10, "TxBroadcastPkts" }, { 4, 0x14, "TxMulticastPkts" }, { 4, 0x18, "TxUnicastPKts" }, { 4, 0x1c, "TxCollisions" }, { 4, 0x20, "TxSingleCollision" }, { 4, 0x24, "TxMultipleCollision" }, { 4, 0x28, "TxDeferredCollision" }, { 4, 0x2c, "TxLateCollision" }, { 4, 0x30, "TxExcessiveCollision" }, { 4, 0x34, "TxFrameInDisc" }, { 4, 0x38, "TxPausePkts" }, { 4, 0x3c, "TxQPKTQ1" }, { 4, 0x40, "TxQPKTQ2" }, { 4, 0x44, "TxQPKTQ3" }, { 4, 0x48, "TxQPKTQ4" }, { 4, 0x4c, "TxQPKTQ5" }, { 8, 0x50, "RxOctets" }, { 4, 0x58, "RxUndersizePkts" }, { 4, 0x5c, "RxPausePkts" }, { 4, 0x60, "RxPkts64Octets" }, { 4, 0x64, "RxPkts65to127Octets" }, { 4, 0x68, "RxPkts128to255Octets" }, { 4, 0x6c, "RxPkts256to511Octets" }, { 4, 0x70, "RxPkts512to1023Octets" }, { 4, 0x74, "RxPkts1024toMaxPktsOctets" }, { 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, "RxJumboPkt" }, { 4, 0xac, "RxSymblErr" }, { 4, 0xb0, "InRangeErrCount" }, { 4, 0xb4, "OutRangeErrCount" }, { 4, 0xb8, "EEELpiEvent" }, { 4, 0xbc, "EEELpiDuration" }, { 4, 0xc0, "RxDiscard" }, { 4, 0xc8, "TxQPKTQ6" }, { 4, 0xcc, "TxQPKTQ7" }, { 4, 0xd0, "TxPkts64Octets" }, { 4, 0xd4, "TxPkts65to127Octets" }, { 4, 0xd8, "TxPkts128to255Octets" }, { 4, 0xdc, "TxPkts256to511Ocets" }, { 4, 0xe0, "TxPkts512to1023Ocets" }, { 4, 0xe4, "TxPkts1024toMaxPktOcets" }, }; #define B53_MIBS_58XX_SIZE ARRAY_SIZE(b53_mibs_58xx) 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, struct b53_vlan *vlan) { if (is5325(dev)) { u32 entry = 0; if (vlan->members) { entry = ((vlan->untag & VA_UNTAG_MASK_25) << VA_UNTAG_S_25) | vlan->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 (vlan->members) entry = ((vlan->untag & VA_UNTAG_MASK_65) << VA_UNTAG_S_65) | vlan->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], (vlan->untag << VTE_UNTAG_S) | vlan->members); b53_do_vlan_op(dev, VTA_CMD_WRITE); } dev_dbg(dev->ds->dev, "VID: %d, members: 0x%04x, untag: 0x%04x\n", vid, vlan->members, vlan->untag); } static void b53_get_vlan_entry(struct b53_device *dev, u16 vid, struct b53_vlan *vlan) { if (is5325(dev)) { u32 entry = 0; b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, vid | VTA_RW_STATE_RD | VTA_RW_OP_EN); b53_read32(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_25, &entry); if (dev->core_rev >= 3) vlan->valid = !!(entry & VA_VALID_25_R4); else vlan->valid = !!(entry & VA_VALID_25); vlan->members = entry & VA_MEMBER_MASK; vlan->untag = (entry >> VA_UNTAG_S_25) & VA_UNTAG_MASK_25; } else if (is5365(dev)) { u16 entry = 0; b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_65, vid | VTA_RW_STATE_WR | VTA_RW_OP_EN); b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_65, &entry); vlan->valid = !!(entry & VA_VALID_65); vlan->members = entry & VA_MEMBER_MASK; vlan->untag = (entry >> VA_UNTAG_S_65) & VA_UNTAG_MASK_65; } else { u32 entry = 0; b53_write16(dev, B53_ARLIO_PAGE, dev->vta_regs[1], vid); b53_do_vlan_op(dev, VTA_CMD_READ); b53_read32(dev, B53_ARLIO_PAGE, dev->vta_regs[2], &entry); vlan->members = entry & VTE_MEMBERS; vlan->untag = (entry >> VTE_UNTAG_S) & VTE_MEMBERS; vlan->valid = true; } } static 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); /* Include IMP port in dumb forwarding mode */ b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_CTRL, &mgmt); mgmt |= B53_MII_DUMB_FWDG_EN; b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_CTRL, mgmt); /* Look at B53_UC_FWD_EN and B53_MC_FWD_EN to decide whether * frames should be flooded or not. */ b53_read8(dev, B53_CTRL_PAGE, B53_IP_MULTICAST_CTRL, &mgmt); mgmt |= B53_UC_FWD_EN | B53_MC_FWD_EN | B53_IPMC_FWD_EN; b53_write8(dev, B53_CTRL_PAGE, B53_IP_MULTICAST_CTRL, mgmt); } static void b53_enable_vlan(struct b53_device *dev, int port, bool enable, bool enable_filtering) { 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); } 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; if (enable_filtering) { vc4 |= VC4_ING_VID_VIO_DROP << VC4_ING_VID_CHECK_S; vc5 |= VC5_DROP_VTABLE_MISS; } else { vc4 |= VC4_ING_VID_VIO_FWD << 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; } 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); dev->vlan_enabled = enable; dev_dbg(dev->dev, "Port %d VLAN enabled: %d, filtering: %d\n", port, enable, enable_filtering); } static int b53_set_jumbo(struct b53_device *dev, bool enable, bool 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, u8 mask) { unsigned int i; b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL, FAST_AGE_DONE | FAST_AGE_DYNAMIC | mask); 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)) goto out; msleep(1); } return -ETIMEDOUT; out: /* Only age dynamic entries (default behavior) */ b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL, FAST_AGE_DYNAMIC); return 0; } static int b53_fast_age_port(struct b53_device *dev, int port) { b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_PORT_CTRL, port); return b53_flush_arl(dev, FAST_AGE_PORT); } static int b53_fast_age_vlan(struct b53_device *dev, u16 vid) { b53_write16(dev, B53_CTRL_PAGE, B53_FAST_AGE_VID_CTRL, vid); return b53_flush_arl(dev, FAST_AGE_VLAN); } void b53_imp_vlan_setup(struct dsa_switch *ds, int cpu_port) { struct b53_device *dev = ds->priv; unsigned int i; u16 pvlan; /* Enable the IMP port to be in the same VLAN as the other ports * on a per-port basis such that we only have Port i and IMP in * the same VLAN. */ b53_for_each_port(dev, i) { b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), &pvlan); pvlan |= BIT(cpu_port); b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), pvlan); } } EXPORT_SYMBOL(b53_imp_vlan_setup); static void b53_port_set_ucast_flood(struct b53_device *dev, int port, bool unicast) { u16 uc; b53_read16(dev, B53_CTRL_PAGE, B53_UC_FLOOD_MASK, &uc); if (unicast) uc |= BIT(port); else uc &= ~BIT(port); b53_write16(dev, B53_CTRL_PAGE, B53_UC_FLOOD_MASK, uc); } static void b53_port_set_mcast_flood(struct b53_device *dev, int port, bool multicast) { u16 mc; b53_read16(dev, B53_CTRL_PAGE, B53_MC_FLOOD_MASK, &mc); if (multicast) mc |= BIT(port); else mc &= ~BIT(port); b53_write16(dev, B53_CTRL_PAGE, B53_MC_FLOOD_MASK, mc); b53_read16(dev, B53_CTRL_PAGE, B53_IPMC_FLOOD_MASK, &mc); if (multicast) mc |= BIT(port); else mc &= ~BIT(port); b53_write16(dev, B53_CTRL_PAGE, B53_IPMC_FLOOD_MASK, mc); } static void b53_port_set_learning(struct b53_device *dev, int port, bool learning) { u16 reg; b53_read16(dev, B53_CTRL_PAGE, B53_DIS_LEARNING, ®); if (learning) reg &= ~BIT(port); else reg |= BIT(port); b53_write16(dev, B53_CTRL_PAGE, B53_DIS_LEARNING, reg); } static void b53_eee_enable_set(struct dsa_switch *ds, int port, bool enable) { struct b53_device *dev = ds->priv; u16 reg; b53_read16(dev, B53_EEE_PAGE, B53_EEE_EN_CTRL, ®); if (enable) reg |= BIT(port); else reg &= ~BIT(port); b53_write16(dev, B53_EEE_PAGE, B53_EEE_EN_CTRL, reg); } int b53_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy) { struct b53_device *dev = ds->priv; unsigned int cpu_port; int ret = 0; u16 pvlan; if (!dsa_is_user_port(ds, port)) return 0; cpu_port = dsa_to_port(ds, port)->cpu_dp->index; b53_port_set_ucast_flood(dev, port, true); b53_port_set_mcast_flood(dev, port, true); b53_port_set_learning(dev, port, false); if (dev->ops->irq_enable) ret = dev->ops->irq_enable(dev, port); if (ret) return ret; /* Clear the Rx and Tx disable bits and set to no spanning tree */ b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), 0); /* Set this port, and only this one to be in the default VLAN, * if member of a bridge, restore its membership prior to * bringing down this port. */ b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan); pvlan &= ~0x1ff; pvlan |= BIT(port); pvlan |= dev->ports[port].vlan_ctl_mask; b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan); b53_imp_vlan_setup(ds, cpu_port); /* If EEE was enabled, restore it */ if (dev->ports[port].eee.eee_enabled) b53_eee_enable_set(ds, port, true); return 0; } EXPORT_SYMBOL(b53_enable_port); void b53_disable_port(struct dsa_switch *ds, int port) { struct b53_device *dev = ds->priv; u8 reg; /* Disable Tx/Rx for the port */ b53_read8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), ®); reg |= PORT_CTRL_RX_DISABLE | PORT_CTRL_TX_DISABLE; b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), reg); if (dev->ops->irq_disable) dev->ops->irq_disable(dev, port); } EXPORT_SYMBOL(b53_disable_port); void b53_brcm_hdr_setup(struct dsa_switch *ds, int port) { struct b53_device *dev = ds->priv; bool tag_en = !(dev->tag_protocol == DSA_TAG_PROTO_NONE); u8 hdr_ctl, val; u16 reg; /* Resolve which bit controls the Broadcom tag */ switch (port) { case 8: val = BRCM_HDR_P8_EN; break; case 7: val = BRCM_HDR_P7_EN; break; case 5: val = BRCM_HDR_P5_EN; break; default: val = 0; break; } /* Enable management mode if tagging is requested */ b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &hdr_ctl); if (tag_en) hdr_ctl |= SM_SW_FWD_MODE; else hdr_ctl &= ~SM_SW_FWD_MODE; b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, hdr_ctl); /* Configure the appropriate IMP port */ b53_read8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &hdr_ctl); if (port == 8) hdr_ctl |= GC_FRM_MGMT_PORT_MII; else if (port == 5) hdr_ctl |= GC_FRM_MGMT_PORT_M; b53_write8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, hdr_ctl); /* Enable Broadcom tags for IMP port */ b53_read8(dev, B53_MGMT_PAGE, B53_BRCM_HDR, &hdr_ctl); if (tag_en) hdr_ctl |= val; else hdr_ctl &= ~val; b53_write8(dev, B53_MGMT_PAGE, B53_BRCM_HDR, hdr_ctl); /* Registers below are only accessible on newer devices */ if (!is58xx(dev)) return; /* Enable reception Broadcom tag for CPU TX (switch RX) to * allow us to tag outgoing frames */ b53_read16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_RX_DIS, ®); if (tag_en) reg &= ~BIT(port); else reg |= BIT(port); b53_write16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_RX_DIS, reg); /* Enable transmission of Broadcom tags from the switch (CPU RX) to * allow delivering frames to the per-port net_devices */ b53_read16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_TX_DIS, ®); if (tag_en) reg &= ~BIT(port); else reg |= BIT(port); b53_write16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_TX_DIS, reg); } EXPORT_SYMBOL(b53_brcm_hdr_setup); static void b53_enable_cpu_port(struct b53_device *dev, int port) { u8 port_ctrl; /* BCM5325 CPU port is at 8 */ if ((is5325(dev) || is5365(dev)) && port == B53_CPU_PORT_25) port = B53_CPU_PORT; port_ctrl = PORT_CTRL_RX_BCST_EN | PORT_CTRL_RX_MCST_EN | PORT_CTRL_RX_UCST_EN; b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), port_ctrl); b53_brcm_hdr_setup(dev->ds, port); b53_port_set_ucast_flood(dev, port, true); b53_port_set_mcast_flood(dev, port, true); b53_port_set_learning(dev, port, false); } 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 u16 b53_default_pvid(struct b53_device *dev) { if (is5325(dev) || is5365(dev)) return 1; else return 0; } static bool b53_vlan_port_needs_forced_tagged(struct dsa_switch *ds, int port) { struct b53_device *dev = ds->priv; return dev->tag_protocol == DSA_TAG_PROTO_NONE && dsa_is_cpu_port(ds, port); } int b53_configure_vlan(struct dsa_switch *ds) { struct b53_device *dev = ds->priv; struct b53_vlan vl = { 0 }; struct b53_vlan *v; int i, def_vid; u16 vid; def_vid = b53_default_pvid(dev); /* clear all vlan entries */ if (is5325(dev) || is5365(dev)) { for (i = def_vid; i < dev->num_vlans; i++) b53_set_vlan_entry(dev, i, &vl); } else { b53_do_vlan_op(dev, VTA_CMD_CLEAR); } b53_enable_vlan(dev, -1, dev->vlan_enabled, ds->vlan_filtering); /* Create an untagged VLAN entry for the default PVID in case * CONFIG_VLAN_8021Q is disabled and there are no calls to * dsa_user_vlan_rx_add_vid() to create the default VLAN * entry. Do this only when the tagging protocol is not * DSA_TAG_PROTO_NONE */ b53_for_each_port(dev, i) { v = &dev->vlans[def_vid]; v->members |= BIT(i); if (!b53_vlan_port_needs_forced_tagged(ds, i)) v->untag = v->members; b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(i), def_vid); } /* Upon initial call we have not set-up any VLANs, but upon * system resume, we need to restore all VLAN entries. */ for (vid = def_vid; vid < dev->num_vlans; vid++) { v = &dev->vlans[vid]; if (!v->members) continue; b53_set_vlan_entry(dev, vid, v); b53_fast_age_vlan(dev, vid); } return 0; } EXPORT_SYMBOL(b53_configure_vlan); 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) { unsigned int timeout = 1000; u8 mgmt, reg; 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); } /* This is specific to 58xx devices here, do not use is58xx() which * covers the larger Starfigther 2 family, including 7445/7278 which * still use this driver as a library and need to perform the reset * earlier. */ if (dev->chip_id == BCM58XX_DEVICE_ID || dev->chip_id == BCM583XX_DEVICE_ID) { b53_read8(dev, B53_CTRL_PAGE, B53_SOFTRESET, ®); reg |= SW_RST | EN_SW_RST | EN_CH_RST; b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, reg); do { b53_read8(dev, B53_CTRL_PAGE, B53_SOFTRESET, ®); if (!(reg & SW_RST)) break; usleep_range(1000, 2000); } while (timeout-- > 0); if (timeout == 0) { dev_err(dev->dev, "Timeout waiting for SW_RST to clear!\n"); return -ETIMEDOUT; } } 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)) { dev_err(dev->dev, "Failed to enable switch!\n"); return -EINVAL; } } b53_enable_mib(dev); return b53_flush_arl(dev, FAST_AGE_STATIC); } static int b53_phy_read16(struct dsa_switch *ds, int addr, int reg) { struct b53_device *priv = ds->priv; u16 value = 0; int ret; if (priv->ops->phy_read16) ret = priv->ops->phy_read16(priv, addr, reg, &value); else ret = b53_read16(priv, B53_PORT_MII_PAGE(addr), reg * 2, &value); return ret ? ret : value; } static int b53_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val) { struct b53_device *priv = ds->priv; if (priv->ops->phy_write16) return priv->ops->phy_write16(priv, addr, reg, val); return b53_write16(priv, B53_PORT_MII_PAGE(addr), reg * 2, val); } static int b53_reset_switch(struct b53_device *priv) { /* reset vlans */ memset(priv->vlans, 0, sizeof(*priv->vlans) * priv->num_vlans); memset(priv->ports, 0, sizeof(*priv->ports) * priv->num_ports); priv->serdes_lane = B53_INVALID_LANE; return b53_switch_reset(priv); } static int b53_apply_config(struct b53_device *priv) { /* disable switching */ b53_set_forwarding(priv, 0); b53_configure_vlan(priv->ds); /* enable switching */ b53_set_forwarding(priv, 1); return 0; } static void b53_reset_mib(struct b53_device *priv) { 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); msleep(1); b53_write8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc & ~GC_RESET_MIB); msleep(1); } static const struct b53_mib_desc *b53_get_mib(struct b53_device *dev) { if (is5365(dev)) return b53_mibs_65; else if (is63xx(dev)) return b53_mibs_63xx; else if (is58xx(dev)) return b53_mibs_58xx; else return b53_mibs; } static unsigned int b53_get_mib_size(struct b53_device *dev) { if (is5365(dev)) return B53_MIBS_65_SIZE; else if (is63xx(dev)) return B53_MIBS_63XX_SIZE; else if (is58xx(dev)) return B53_MIBS_58XX_SIZE; else return B53_MIBS_SIZE; } static struct phy_device *b53_get_phy_device(struct dsa_switch *ds, int port) { /* These ports typically do not have built-in PHYs */ switch (port) { case B53_CPU_PORT_25: case 7: case B53_CPU_PORT: return NULL; } return mdiobus_get_phy(ds->user_mii_bus, port); } void b53_get_strings(struct dsa_switch *ds, int port, u32 stringset, uint8_t *data) { struct b53_device *dev = ds->priv; const struct b53_mib_desc *mibs = b53_get_mib(dev); unsigned int mib_size = b53_get_mib_size(dev); struct phy_device *phydev; unsigned int i; if (stringset == ETH_SS_STATS) { for (i = 0; i < mib_size; i++) strscpy(data + i * ETH_GSTRING_LEN, mibs[i].name, ETH_GSTRING_LEN); } else if (stringset == ETH_SS_PHY_STATS) { phydev = b53_get_phy_device(ds, port); if (!phydev) return; phy_ethtool_get_strings(phydev, data); } } EXPORT_SYMBOL(b53_get_strings); void b53_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *data) { struct b53_device *dev = ds->priv; const struct b53_mib_desc *mibs = b53_get_mib(dev); unsigned int mib_size = b53_get_mib_size(dev); const struct b53_mib_desc *s; unsigned int i; u64 val = 0; if (is5365(dev) && port == 5) port = 8; mutex_lock(&dev->stats_mutex); for (i = 0; i < mib_size; i++) { s = &mibs[i]; if (s->size == 8) { b53_read64(dev, B53_MIB_PAGE(port), s->offset, &val); } else { u32 val32; b53_read32(dev, B53_MIB_PAGE(port), s->offset, &val32); val = val32; } data[i] = (u64)val; } mutex_unlock(&dev->stats_mutex); } EXPORT_SYMBOL(b53_get_ethtool_stats); void b53_get_ethtool_phy_stats(struct dsa_switch *ds, int port, uint64_t *data) { struct phy_device *phydev; phydev = b53_get_phy_device(ds, port); if (!phydev) return; phy_ethtool_get_stats(phydev, NULL, data); } EXPORT_SYMBOL(b53_get_ethtool_phy_stats); int b53_get_sset_count(struct dsa_switch *ds, int port, int sset) { struct b53_device *dev = ds->priv; struct phy_device *phydev; if (sset == ETH_SS_STATS) { return b53_get_mib_size(dev); } else if (sset == ETH_SS_PHY_STATS) { phydev = b53_get_phy_device(ds, port); if (!phydev) return 0; return phy_ethtool_get_sset_count(phydev); } return 0; } EXPORT_SYMBOL(b53_get_sset_count); enum b53_devlink_resource_id { B53_DEVLINK_PARAM_ID_VLAN_TABLE, }; static u64 b53_devlink_vlan_table_get(void *priv) { struct b53_device *dev = priv; struct b53_vlan *vl; unsigned int i; u64 count = 0; for (i = 0; i < dev->num_vlans; i++) { vl = &dev->vlans[i]; if (vl->members) count++; } return count; } int b53_setup_devlink_resources(struct dsa_switch *ds) { struct devlink_resource_size_params size_params; struct b53_device *dev = ds->priv; int err; devlink_resource_size_params_init(&size_params, dev->num_vlans, dev->num_vlans, 1, DEVLINK_RESOURCE_UNIT_ENTRY); err = dsa_devlink_resource_register(ds, "VLAN", dev->num_vlans, B53_DEVLINK_PARAM_ID_VLAN_TABLE, DEVLINK_RESOURCE_ID_PARENT_TOP, &size_params); if (err) goto out; dsa_devlink_resource_occ_get_register(ds, B53_DEVLINK_PARAM_ID_VLAN_TABLE, b53_devlink_vlan_table_get, dev); return 0; out: dsa_devlink_resources_unregister(ds); return err; } EXPORT_SYMBOL(b53_setup_devlink_resources); static int b53_setup(struct dsa_switch *ds) { struct b53_device *dev = ds->priv; unsigned int port; int ret; /* Request bridge PVID untagged when DSA_TAG_PROTO_NONE is set * which forces the CPU port to be tagged in all VLANs. */ ds->untag_bridge_pvid = dev->tag_protocol == DSA_TAG_PROTO_NONE; ret = b53_reset_switch(dev); if (ret) { dev_err(ds->dev, "failed to reset switch\n"); return ret; } b53_reset_mib(dev); ret = b53_apply_config(dev); if (ret) { dev_err(ds->dev, "failed to apply configuration\n"); return ret; } /* Configure IMP/CPU port, disable all other ports. Enabled * ports will be configured with .port_enable */ for (port = 0; port < dev->num_ports; port++) { if (dsa_is_cpu_port(ds, port)) b53_enable_cpu_port(dev, port); else b53_disable_port(ds, port); } return b53_setup_devlink_resources(ds); } static void b53_teardown(struct dsa_switch *ds) { dsa_devlink_resources_unregister(ds); } static void b53_force_link(struct b53_device *dev, int port, int link) { u8 reg, val, off; /* Override the port settings */ if (port == dev->imp_port) { off = B53_PORT_OVERRIDE_CTRL; val = PORT_OVERRIDE_EN; } else { off = B53_GMII_PORT_OVERRIDE_CTRL(port); val = GMII_PO_EN; } b53_read8(dev, B53_CTRL_PAGE, off, ®); reg |= val; if (link) reg |= PORT_OVERRIDE_LINK; else reg &= ~PORT_OVERRIDE_LINK; b53_write8(dev, B53_CTRL_PAGE, off, reg); } static void b53_force_port_config(struct b53_device *dev, int port, int speed, int duplex, bool tx_pause, bool rx_pause) { u8 reg, val, off; /* Override the port settings */ if (port == dev->imp_port) { off = B53_PORT_OVERRIDE_CTRL; val = PORT_OVERRIDE_EN; } else { off = B53_GMII_PORT_OVERRIDE_CTRL(port); val = GMII_PO_EN; } b53_read8(dev, B53_CTRL_PAGE, off, ®); reg |= val; if (duplex == DUPLEX_FULL) reg |= PORT_OVERRIDE_FULL_DUPLEX; else reg &= ~PORT_OVERRIDE_FULL_DUPLEX; switch (speed) { case 2000: reg |= PORT_OVERRIDE_SPEED_2000M; fallthrough; case SPEED_1000: reg |= PORT_OVERRIDE_SPEED_1000M; break; case SPEED_100: reg |= PORT_OVERRIDE_SPEED_100M; break; case SPEED_10: reg |= PORT_OVERRIDE_SPEED_10M; break; default: dev_err(dev->dev, "unknown speed: %d\n", speed); return; } if (rx_pause) reg |= PORT_OVERRIDE_RX_FLOW; if (tx_pause) reg |= PORT_OVERRIDE_TX_FLOW; b53_write8(dev, B53_CTRL_PAGE, off, reg); } static void b53_adjust_63xx_rgmii(struct dsa_switch *ds, int port, phy_interface_t interface) { struct b53_device *dev = ds->priv; u8 rgmii_ctrl = 0, off; if (port == dev->imp_port) off = B53_RGMII_CTRL_IMP; else off = B53_RGMII_CTRL_P(port); b53_read8(dev, B53_CTRL_PAGE, off, &rgmii_ctrl); switch (interface) { case PHY_INTERFACE_MODE_RGMII_ID: rgmii_ctrl |= (RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC); break; case PHY_INTERFACE_MODE_RGMII_RXID: rgmii_ctrl &= ~(RGMII_CTRL_DLL_TXC); rgmii_ctrl |= RGMII_CTRL_DLL_RXC; break; case PHY_INTERFACE_MODE_RGMII_TXID: rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC); rgmii_ctrl |= RGMII_CTRL_DLL_TXC; break; case PHY_INTERFACE_MODE_RGMII: default: rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC); break; } if (port != dev->imp_port) { if (is63268(dev)) rgmii_ctrl |= RGMII_CTRL_MII_OVERRIDE; rgmii_ctrl |= RGMII_CTRL_ENABLE_GMII; } b53_write8(dev, B53_CTRL_PAGE, off, rgmii_ctrl); dev_dbg(ds->dev, "Configured port %d for %s\n", port, phy_modes(interface)); } static void b53_adjust_531x5_rgmii(struct dsa_switch *ds, int port, phy_interface_t interface) { struct b53_device *dev = ds->priv; u8 rgmii_ctrl = 0, off; if (port == dev->imp_port) off = B53_RGMII_CTRL_IMP; else off = B53_RGMII_CTRL_P(port); /* Configure the port RGMII clock delay by DLL disabled and * tx_clk aligned timing (restoring to reset defaults) */ b53_read8(dev, B53_CTRL_PAGE, off, &rgmii_ctrl); rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC | RGMII_CTRL_TIMING_SEL); /* PHY_INTERFACE_MODE_RGMII_TXID means TX internal delay, make * sure that we enable the port TX clock internal delay to * account for this internal delay that is inserted, otherwise * the switch won't be able to receive correctly. * * PHY_INTERFACE_MODE_RGMII means that we are not introducing * any delay neither on transmission nor reception, so the * BCM53125 must also be configured accordingly to account for * the lack of delay and introduce * * The BCM53125 switch has its RX clock and TX clock control * swapped, hence the reason why we modify the TX clock path in * the "RGMII" case */ if (interface == PHY_INTERFACE_MODE_RGMII_TXID) rgmii_ctrl |= RGMII_CTRL_DLL_TXC; if (interface == PHY_INTERFACE_MODE_RGMII) rgmii_ctrl |= RGMII_CTRL_DLL_TXC | RGMII_CTRL_DLL_RXC; rgmii_ctrl |= RGMII_CTRL_TIMING_SEL; b53_write8(dev, B53_CTRL_PAGE, off, rgmii_ctrl); dev_info(ds->dev, "Configured port %d for %s\n", port, phy_modes(interface)); } static void b53_adjust_5325_mii(struct dsa_switch *ds, int port) { struct b53_device *dev = ds->priv; u8 reg = 0; b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL, ®); /* reverse mii needs to be enabled */ if (!(reg & PORT_OVERRIDE_RV_MII_25)) { b53_write8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL, reg | PORT_OVERRIDE_RV_MII_25); b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL, ®); if (!(reg & PORT_OVERRIDE_RV_MII_25)) { dev_err(ds->dev, "Failed to enable reverse MII mode\n"); return; } } } void b53_port_event(struct dsa_switch *ds, int port) { struct b53_device *dev = ds->priv; bool link; u16 sts; b53_read16(dev, B53_STAT_PAGE, B53_LINK_STAT, &sts); link = !!(sts & BIT(port)); dsa_port_phylink_mac_change(ds, port, link); } EXPORT_SYMBOL(b53_port_event); static void b53_phylink_get_caps(struct dsa_switch *ds, int port, struct phylink_config *config) { struct b53_device *dev = ds->priv; /* Internal ports need GMII for PHYLIB */ __set_bit(PHY_INTERFACE_MODE_GMII, config->supported_interfaces); /* These switches appear to support MII and RevMII too, but beyond * this, the code gives very few clues. FIXME: We probably need more * interface modes here. * * According to b53_srab_mux_init(), ports 3..5 can support: * SGMII, MII, GMII, RGMII or INTERNAL depending on the MUX setting. * However, the interface mode read from the MUX configuration is * not passed back to DSA, so phylink uses NA. * DT can specify RGMII for ports 0, 1. * For MDIO, port 8 can be RGMII_TXID. */ __set_bit(PHY_INTERFACE_MODE_MII, config->supported_interfaces); __set_bit(PHY_INTERFACE_MODE_REVMII, config->supported_interfaces); config->mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE | MAC_10 | MAC_100; /* 5325/5365 are not capable of gigabit speeds, everything else is. * Note: the original code also exclulded Gigagbit for MII, RevMII * and 802.3z modes. MII and RevMII are not able to work above 100M, * so will be excluded by the generic validator implementation. * However, the exclusion of Gigabit for 802.3z just seems wrong. */ if (!(is5325(dev) || is5365(dev))) config->mac_capabilities |= MAC_1000; /* Get the implementation specific capabilities */ if (dev->ops->phylink_get_caps) dev->ops->phylink_get_caps(dev, port, config); } static struct phylink_pcs *b53_phylink_mac_select_pcs(struct phylink_config *config, phy_interface_t interface) { struct dsa_port *dp = dsa_phylink_to_port(config); struct b53_device *dev = dp->ds->priv; if (!dev->ops->phylink_mac_select_pcs) return NULL; return dev->ops->phylink_mac_select_pcs(dev, dp->index, interface); } static void b53_phylink_mac_config(struct phylink_config *config, unsigned int mode, const struct phylink_link_state *state) { struct dsa_port *dp = dsa_phylink_to_port(config); phy_interface_t interface = state->interface; struct dsa_switch *ds = dp->ds; struct b53_device *dev = ds->priv; int port = dp->index; if (is63xx(dev) && port >= B53_63XX_RGMII0) b53_adjust_63xx_rgmii(ds, port, interface); if (mode == MLO_AN_FIXED) { if (is531x5(dev) && phy_interface_mode_is_rgmii(interface)) b53_adjust_531x5_rgmii(ds, port, interface); /* configure MII port if necessary */ if (is5325(dev)) b53_adjust_5325_mii(ds, port); } } static void b53_phylink_mac_link_down(struct phylink_config *config, unsigned int mode, phy_interface_t interface) { struct dsa_port *dp = dsa_phylink_to_port(config); struct b53_device *dev = dp->ds->priv; int port = dp->index; if (mode == MLO_AN_PHY) return; if (mode == MLO_AN_FIXED) { b53_force_link(dev, port, false); return; } if (phy_interface_mode_is_8023z(interface) && dev->ops->serdes_link_set) dev->ops->serdes_link_set(dev, port, mode, interface, false); } static void b53_phylink_mac_link_up(struct phylink_config *config, struct phy_device *phydev, unsigned int mode, phy_interface_t interface, int speed, int duplex, bool tx_pause, bool rx_pause) { struct dsa_port *dp = dsa_phylink_to_port(config); struct dsa_switch *ds = dp->ds; struct b53_device *dev = ds->priv; struct ethtool_keee *p = &dev->ports[dp->index].eee; int port = dp->index; if (mode == MLO_AN_PHY) { /* Re-negotiate EEE if it was enabled already */ p->eee_enabled = b53_eee_init(ds, port, phydev); return; } if (mode == MLO_AN_FIXED) { /* Force flow control on BCM5301x's CPU port */ if (is5301x(dev) && dsa_is_cpu_port(ds, port)) tx_pause = rx_pause = true; b53_force_port_config(dev, port, speed, duplex, tx_pause, rx_pause); b53_force_link(dev, port, true); return; } if (phy_interface_mode_is_8023z(interface) && dev->ops->serdes_link_set) dev->ops->serdes_link_set(dev, port, mode, interface, true); } int b53_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering, struct netlink_ext_ack *extack) { struct b53_device *dev = ds->priv; b53_enable_vlan(dev, port, dev->vlan_enabled, vlan_filtering); return 0; } EXPORT_SYMBOL(b53_vlan_filtering); static int b53_vlan_prepare(struct dsa_switch *ds, int port, const struct switchdev_obj_port_vlan *vlan) { struct b53_device *dev = ds->priv; if ((is5325(dev) || is5365(dev)) && vlan->vid == 0) return -EOPNOTSUPP; /* Port 7 on 7278 connects to the ASP's UniMAC which is not capable of * receiving VLAN tagged frames at all, we can still allow the port to * be configured for egress untagged. */ if (dev->chip_id == BCM7278_DEVICE_ID && port == 7 && !(vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED)) return -EINVAL; if (vlan->vid >= dev->num_vlans) return -ERANGE; b53_enable_vlan(dev, port, true, ds->vlan_filtering); return 0; } int b53_vlan_add(struct dsa_switch *ds, int port, const struct switchdev_obj_port_vlan *vlan, struct netlink_ext_ack *extack) { struct b53_device *dev = ds->priv; bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID; struct b53_vlan *vl; int err; err = b53_vlan_prepare(ds, port, vlan); if (err) return err; vl = &dev->vlans[vlan->vid]; b53_get_vlan_entry(dev, vlan->vid, vl); if (vlan->vid == 0 && vlan->vid == b53_default_pvid(dev)) untagged = true; vl->members |= BIT(port); if (untagged && !b53_vlan_port_needs_forced_tagged(ds, port)) vl->untag |= BIT(port); else vl->untag &= ~BIT(port); b53_set_vlan_entry(dev, vlan->vid, vl); b53_fast_age_vlan(dev, vlan->vid); if (pvid && !dsa_is_cpu_port(ds, port)) { b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), vlan->vid); b53_fast_age_vlan(dev, vlan->vid); } return 0; } EXPORT_SYMBOL(b53_vlan_add); int b53_vlan_del(struct dsa_switch *ds, int port, const struct switchdev_obj_port_vlan *vlan) { struct b53_device *dev = ds->priv; bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; struct b53_vlan *vl; u16 pvid; b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), &pvid); vl = &dev->vlans[vlan->vid]; b53_get_vlan_entry(dev, vlan->vid, vl); vl->members &= ~BIT(port); if (pvid == vlan->vid) pvid = b53_default_pvid(dev); if (untagged && !b53_vlan_port_needs_forced_tagged(ds, port)) vl->untag &= ~(BIT(port)); b53_set_vlan_entry(dev, vlan->vid, vl); b53_fast_age_vlan(dev, vlan->vid); b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), pvid); b53_fast_age_vlan(dev, pvid); return 0; } EXPORT_SYMBOL(b53_vlan_del); /* Address Resolution Logic routines. Caller must hold &dev->arl_mutex. */ static int b53_arl_op_wait(struct b53_device *dev) { unsigned int timeout = 10; u8 reg; do { b53_read8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, ®); if (!(reg & ARLTBL_START_DONE)) return 0; usleep_range(1000, 2000); } while (timeout--); dev_warn(dev->dev, "timeout waiting for ARL to finish: 0x%02x\n", reg); return -ETIMEDOUT; } static int b53_arl_rw_op(struct b53_device *dev, unsigned int op) { u8 reg; if (op > ARLTBL_RW) return -EINVAL; b53_read8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, ®); reg |= ARLTBL_START_DONE; if (op) reg |= ARLTBL_RW; else reg &= ~ARLTBL_RW; if (dev->vlan_enabled) reg &= ~ARLTBL_IVL_SVL_SELECT; else reg |= ARLTBL_IVL_SVL_SELECT; b53_write8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, reg); return b53_arl_op_wait(dev); } static int b53_arl_read(struct b53_device *dev, u64 mac, u16 vid, struct b53_arl_entry *ent, u8 *idx) { DECLARE_BITMAP(free_bins, B53_ARLTBL_MAX_BIN_ENTRIES); unsigned int i; int ret; ret = b53_arl_op_wait(dev); if (ret) return ret; bitmap_zero(free_bins, dev->num_arl_bins); /* Read the bins */ for (i = 0; i < dev->num_arl_bins; i++) { u64 mac_vid; u32 fwd_entry; b53_read64(dev, B53_ARLIO_PAGE, B53_ARLTBL_MAC_VID_ENTRY(i), &mac_vid); b53_read32(dev, B53_ARLIO_PAGE, B53_ARLTBL_DATA_ENTRY(i), &fwd_entry); b53_arl_to_entry(ent, mac_vid, fwd_entry); if (!(fwd_entry & ARLTBL_VALID)) { set_bit(i, free_bins); continue; } if ((mac_vid & ARLTBL_MAC_MASK) != mac) continue; if (dev->vlan_enabled && ((mac_vid >> ARLTBL_VID_S) & ARLTBL_VID_MASK) != vid) continue; *idx = i; return 0; } *idx = find_first_bit(free_bins, dev->num_arl_bins); return *idx >= dev->num_arl_bins ? -ENOSPC : -ENOENT; } static int b53_arl_op(struct b53_device *dev, int op, int port, const unsigned char *addr, u16 vid, bool is_valid) { struct b53_arl_entry ent; u32 fwd_entry; u64 mac, mac_vid = 0; u8 idx = 0; int ret; /* Convert the array into a 64-bit MAC */ mac = ether_addr_to_u64(addr); /* Perform a read for the given MAC and VID */ b53_write48(dev, B53_ARLIO_PAGE, B53_MAC_ADDR_IDX, mac); b53_write16(dev, B53_ARLIO_PAGE, B53_VLAN_ID_IDX, vid); /* Issue a read operation for this MAC */ ret = b53_arl_rw_op(dev, 1); if (ret) return ret; ret = b53_arl_read(dev, mac, vid, &ent, &idx); /* If this is a read, just finish now */ if (op) return ret; switch (ret) { case -ETIMEDOUT: return ret; case -ENOSPC: dev_dbg(dev->dev, "{%pM,%.4d} no space left in ARL\n", addr, vid); return is_valid ? ret : 0; case -ENOENT: /* We could not find a matching MAC, so reset to a new entry */ dev_dbg(dev->dev, "{%pM,%.4d} not found, using idx: %d\n", addr, vid, idx); fwd_entry = 0; break; default: dev_dbg(dev->dev, "{%pM,%.4d} found, using idx: %d\n", addr, vid, idx); break; } /* For multicast address, the port is a bitmask and the validity * is determined by having at least one port being still active */ if (!is_multicast_ether_addr(addr)) { ent.port = port; ent.is_valid = is_valid; } else { if (is_valid) ent.port |= BIT(port); else ent.port &= ~BIT(port); ent.is_valid = !!(ent.port); } ent.vid = vid; ent.is_static = true; ent.is_age = false; memcpy(ent.mac, addr, ETH_ALEN); b53_arl_from_entry(&mac_vid, &fwd_entry, &ent); b53_write64(dev, B53_ARLIO_PAGE, B53_ARLTBL_MAC_VID_ENTRY(idx), mac_vid); b53_write32(dev, B53_ARLIO_PAGE, B53_ARLTBL_DATA_ENTRY(idx), fwd_entry); return b53_arl_rw_op(dev, 0); } int b53_fdb_add(struct dsa_switch *ds, int port, const unsigned char *addr, u16 vid, struct dsa_db db) { struct b53_device *priv = ds->priv; int ret; /* 5325 and 5365 require some more massaging, but could * be supported eventually */ if (is5325(priv) || is5365(priv)) return -EOPNOTSUPP; mutex_lock(&priv->arl_mutex); ret = b53_arl_op(priv, 0, port, addr, vid, true); mutex_unlock(&priv->arl_mutex); return ret; } EXPORT_SYMBOL(b53_fdb_add); int b53_fdb_del(struct dsa_switch *ds, int port, const unsigned char *addr, u16 vid, struct dsa_db db) { struct b53_device *priv = ds->priv; int ret; mutex_lock(&priv->arl_mutex); ret = b53_arl_op(priv, 0, port, addr, vid, false); mutex_unlock(&priv->arl_mutex); return ret; } EXPORT_SYMBOL(b53_fdb_del); static int b53_arl_search_wait(struct b53_device *dev) { unsigned int timeout = 1000; u8 reg; do { b53_read8(dev, B53_ARLIO_PAGE, B53_ARL_SRCH_CTL, ®); if (!(reg & ARL_SRCH_STDN)) return 0; if (reg & ARL_SRCH_VLID) return 0; usleep_range(1000, 2000); } while (timeout--); return -ETIMEDOUT; } static void b53_arl_search_rd(struct b53_device *dev, u8 idx, struct b53_arl_entry *ent) { u64 mac_vid; u32 fwd_entry; b53_read64(dev, B53_ARLIO_PAGE, B53_ARL_SRCH_RSTL_MACVID(idx), &mac_vid); b53_read32(dev, B53_ARLIO_PAGE, B53_ARL_SRCH_RSTL(idx), &fwd_entry); b53_arl_to_entry(ent, mac_vid, fwd_entry); } static int b53_fdb_copy(int port, const struct b53_arl_entry *ent, dsa_fdb_dump_cb_t *cb, void *data) { if (!ent->is_valid) return 0; if (port != ent->port) return 0; return cb(ent->mac, ent->vid, ent->is_static, data); } int b53_fdb_dump(struct dsa_switch *ds, int port, dsa_fdb_dump_cb_t *cb, void *data) { struct b53_device *priv = ds->priv; struct b53_arl_entry results[2]; unsigned int count = 0; int ret; u8 reg; mutex_lock(&priv->arl_mutex); /* Start search operation */ reg = ARL_SRCH_STDN; b53_write8(priv, B53_ARLIO_PAGE, B53_ARL_SRCH_CTL, reg); do { ret = b53_arl_search_wait(priv); if (ret) break; b53_arl_search_rd(priv, 0, &results[0]); ret = b53_fdb_copy(port, &results[0], cb, data); if (ret) break; if (priv->num_arl_bins > 2) { b53_arl_search_rd(priv, 1, &results[1]); ret = b53_fdb_copy(port, &results[1], cb, data); if (ret) break; if (!results[0].is_valid && !results[1].is_valid) break; } } while (count++ < b53_max_arl_entries(priv) / 2); mutex_unlock(&priv->arl_mutex); return 0; } EXPORT_SYMBOL(b53_fdb_dump); int b53_mdb_add(struct dsa_switch *ds, int port, const struct switchdev_obj_port_mdb *mdb, struct dsa_db db) { struct b53_device *priv = ds->priv; int ret; /* 5325 and 5365 require some more massaging, but could * be supported eventually */ if (is5325(priv) || is5365(priv)) return -EOPNOTSUPP; mutex_lock(&priv->arl_mutex); ret = b53_arl_op(priv, 0, port, mdb->addr, mdb->vid, true); mutex_unlock(&priv->arl_mutex); return ret; } EXPORT_SYMBOL(b53_mdb_add); int b53_mdb_del(struct dsa_switch *ds, int port, const struct switchdev_obj_port_mdb *mdb, struct dsa_db db) { struct b53_device *priv = ds->priv; int ret; mutex_lock(&priv->arl_mutex); ret = b53_arl_op(priv, 0, port, mdb->addr, mdb->vid, false); mutex_unlock(&priv->arl_mutex); if (ret) dev_err(ds->dev, "failed to delete MDB entry\n"); return ret; } EXPORT_SYMBOL(b53_mdb_del); int b53_br_join(struct dsa_switch *ds, int port, struct dsa_bridge bridge, bool *tx_fwd_offload, struct netlink_ext_ack *extack) { struct b53_device *dev = ds->priv; s8 cpu_port = dsa_to_port(ds, port)->cpu_dp->index; u16 pvlan, reg; unsigned int i; /* On 7278, port 7 which connects to the ASP should only receive * traffic from matching CFP rules. */ if (dev->chip_id == BCM7278_DEVICE_ID && port == 7) return -EINVAL; /* Make this port leave the all VLANs join since we will have proper * VLAN entries from now on */ if (is58xx(dev)) { b53_read16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, ®); reg &= ~BIT(port); if ((reg & BIT(cpu_port)) == BIT(cpu_port)) reg &= ~BIT(cpu_port); b53_write16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, reg); } b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan); b53_for_each_port(dev, i) { if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge)) continue; /* Add this local port to the remote port VLAN control * membership and update the remote port bitmask */ b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), ®); reg |= BIT(port); b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), reg); dev->ports[i].vlan_ctl_mask = reg; pvlan |= BIT(i); } /* Configure the local port VLAN control membership to include * remote ports and update the local port bitmask */ b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan); dev->ports[port].vlan_ctl_mask = pvlan; return 0; } EXPORT_SYMBOL(b53_br_join); void b53_br_leave(struct dsa_switch *ds, int port, struct dsa_bridge bridge) { struct b53_device *dev = ds->priv; struct b53_vlan *vl = &dev->vlans[0]; s8 cpu_port = dsa_to_port(ds, port)->cpu_dp->index; unsigned int i; u16 pvlan, reg, pvid; b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan); b53_for_each_port(dev, i) { /* Don't touch the remaining ports */ if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge)) continue; b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), ®); reg &= ~BIT(port); b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), reg); dev->ports[port].vlan_ctl_mask = reg; /* Prevent self removal to preserve isolation */ if (port != i) pvlan &= ~BIT(i); } b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan); dev->ports[port].vlan_ctl_mask = pvlan; pvid = b53_default_pvid(dev); /* Make this port join all VLANs without VLAN entries */ if (is58xx(dev)) { b53_read16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, ®); reg |= BIT(port); if (!(reg & BIT(cpu_port))) reg |= BIT(cpu_port); b53_write16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, reg); } else { b53_get_vlan_entry(dev, pvid, vl); vl->members |= BIT(port) | BIT(cpu_port); vl->untag |= BIT(port) | BIT(cpu_port); b53_set_vlan_entry(dev, pvid, vl); } } EXPORT_SYMBOL(b53_br_leave); void b53_br_set_stp_state(struct dsa_switch *ds, int port, u8 state) { struct b53_device *dev = ds->priv; u8 hw_state; u8 reg; switch (state) { case BR_STATE_DISABLED: hw_state = PORT_CTRL_DIS_STATE; break; case BR_STATE_LISTENING: hw_state = PORT_CTRL_LISTEN_STATE; break; case BR_STATE_LEARNING: hw_state = PORT_CTRL_LEARN_STATE; break; case BR_STATE_FORWARDING: hw_state = PORT_CTRL_FWD_STATE; break; case BR_STATE_BLOCKING: hw_state = PORT_CTRL_BLOCK_STATE; break; default: dev_err(ds->dev, "invalid STP state: %d\n", state); return; } b53_read8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), ®); reg &= ~PORT_CTRL_STP_STATE_MASK; reg |= hw_state; b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), reg); } EXPORT_SYMBOL(b53_br_set_stp_state); void b53_br_fast_age(struct dsa_switch *ds, int port) { struct b53_device *dev = ds->priv; if (b53_fast_age_port(dev, port)) dev_err(ds->dev, "fast ageing failed\n"); } EXPORT_SYMBOL(b53_br_fast_age); int b53_br_flags_pre(struct dsa_switch *ds, int port, struct switchdev_brport_flags flags, struct netlink_ext_ack *extack) { if (flags.mask & ~(BR_FLOOD | BR_MCAST_FLOOD | BR_LEARNING)) return -EINVAL; return 0; } EXPORT_SYMBOL(b53_br_flags_pre); int b53_br_flags(struct dsa_switch *ds, int port, struct switchdev_brport_flags flags, struct netlink_ext_ack *extack) { if (flags.mask & BR_FLOOD) b53_port_set_ucast_flood(ds->priv, port, !!(flags.val & BR_FLOOD)); if (flags.mask & BR_MCAST_FLOOD) b53_port_set_mcast_flood(ds->priv, port, !!(flags.val & BR_MCAST_FLOOD)); if (flags.mask & BR_LEARNING) b53_port_set_learning(ds->priv, port, !!(flags.val & BR_LEARNING)); return 0; } EXPORT_SYMBOL(b53_br_flags); static bool b53_possible_cpu_port(struct dsa_switch *ds, int port) { /* Broadcom switches will accept enabling Broadcom tags on the * following ports: 5, 7 and 8, any other port is not supported */ switch (port) { case B53_CPU_PORT_25: case 7: case B53_CPU_PORT: return true; } return false; } static bool b53_can_enable_brcm_tags(struct dsa_switch *ds, int port, enum dsa_tag_protocol tag_protocol) { bool ret = b53_possible_cpu_port(ds, port); if (!ret) { dev_warn(ds->dev, "Port %d is not Broadcom tag capable\n", port); return ret; } switch (tag_protocol) { case DSA_TAG_PROTO_BRCM: case DSA_TAG_PROTO_BRCM_PREPEND: dev_warn(ds->dev, "Port %d is stacked to Broadcom tag switch\n", port); ret = false; break; default: ret = true; break; } return ret; } enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds, int port, enum dsa_tag_protocol mprot) { struct b53_device *dev = ds->priv; if (!b53_can_enable_brcm_tags(ds, port, mprot)) { dev->tag_protocol = DSA_TAG_PROTO_NONE; goto out; } /* Older models require a different 6 byte tag */ if (is5325(dev) || is5365(dev) || is63xx(dev)) { dev->tag_protocol = DSA_TAG_PROTO_BRCM_LEGACY; goto out; } /* Broadcom BCM58xx chips have a flow accelerator on Port 8 * which requires us to use the prepended Broadcom tag type */ if (dev->chip_id == BCM58XX_DEVICE_ID && port == B53_CPU_PORT) { dev->tag_protocol = DSA_TAG_PROTO_BRCM_PREPEND; goto out; } dev->tag_protocol = DSA_TAG_PROTO_BRCM; out: return dev->tag_protocol; } EXPORT_SYMBOL(b53_get_tag_protocol); int b53_mirror_add(struct dsa_switch *ds, int port, struct dsa_mall_mirror_tc_entry *mirror, bool ingress, struct netlink_ext_ack *extack) { struct b53_device *dev = ds->priv; u16 reg, loc; if (ingress) loc = B53_IG_MIR_CTL; else loc = B53_EG_MIR_CTL; b53_read16(dev, B53_MGMT_PAGE, loc, ®); reg |= BIT(port); b53_write16(dev, B53_MGMT_PAGE, loc, reg); b53_read16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, ®); reg &= ~CAP_PORT_MASK; reg |= mirror->to_local_port; reg |= MIRROR_EN; b53_write16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, reg); return 0; } EXPORT_SYMBOL(b53_mirror_add); void b53_mirror_del(struct dsa_switch *ds, int port, struct dsa_mall_mirror_tc_entry *mirror) { struct b53_device *dev = ds->priv; bool loc_disable = false, other_loc_disable = false; u16 reg, loc; if (mirror->ingress) loc = B53_IG_MIR_CTL; else loc = B53_EG_MIR_CTL; /* Update the desired ingress/egress register */ b53_read16(dev, B53_MGMT_PAGE, loc, ®); reg &= ~BIT(port); if (!(reg & MIRROR_MASK)) loc_disable = true; b53_write16(dev, B53_MGMT_PAGE, loc, reg); /* Now look at the other one to know if we can disable mirroring * entirely */ if (mirror->ingress) b53_read16(dev, B53_MGMT_PAGE, B53_EG_MIR_CTL, ®); else b53_read16(dev, B53_MGMT_PAGE, B53_IG_MIR_CTL, ®); if (!(reg & MIRROR_MASK)) other_loc_disable = true; b53_read16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, ®); /* Both no longer have ports, let's disable mirroring */ if (loc_disable && other_loc_disable) { reg &= ~MIRROR_EN; reg &= ~mirror->to_local_port; } b53_write16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, reg); } EXPORT_SYMBOL(b53_mirror_del); /* Returns 0 if EEE was not enabled, or 1 otherwise */ int b53_eee_init(struct dsa_switch *ds, int port, struct phy_device *phy) { int ret; ret = phy_init_eee(phy, false); if (ret) return 0; b53_eee_enable_set(ds, port, true); return 1; } EXPORT_SYMBOL(b53_eee_init); int b53_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_keee *e) { struct b53_device *dev = ds->priv; if (is5325(dev) || is5365(dev)) return -EOPNOTSUPP; return 0; } EXPORT_SYMBOL(b53_get_mac_eee); int b53_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_keee *e) { struct b53_device *dev = ds->priv; struct ethtool_keee *p = &dev->ports[port].eee; if (is5325(dev) || is5365(dev)) return -EOPNOTSUPP; p->eee_enabled = e->eee_enabled; b53_eee_enable_set(ds, port, e->eee_enabled); return 0; } EXPORT_SYMBOL(b53_set_mac_eee); static int b53_change_mtu(struct dsa_switch *ds, int port, int mtu) { struct b53_device *dev = ds->priv; bool enable_jumbo; bool allow_10_100; if (is5325(dev) || is5365(dev)) return -EOPNOTSUPP; enable_jumbo = (mtu >= JMS_MIN_SIZE); allow_10_100 = (dev->chip_id == BCM583XX_DEVICE_ID); return b53_set_jumbo(dev, enable_jumbo, allow_10_100); } static int b53_get_max_mtu(struct dsa_switch *ds, int port) { return JMS_MAX_SIZE; } static const struct phylink_mac_ops b53_phylink_mac_ops = { .mac_select_pcs = b53_phylink_mac_select_pcs, .mac_config = b53_phylink_mac_config, .mac_link_down = b53_phylink_mac_link_down, .mac_link_up = b53_phylink_mac_link_up, }; static const struct dsa_switch_ops b53_switch_ops = { .get_tag_protocol = b53_get_tag_protocol, .setup = b53_setup, .teardown = b53_teardown, .get_strings = b53_get_strings, .get_ethtool_stats = b53_get_ethtool_stats, .get_sset_count = b53_get_sset_count, .get_ethtool_phy_stats = b53_get_ethtool_phy_stats, .phy_read = b53_phy_read16, .phy_write = b53_phy_write16, .phylink_get_caps = b53_phylink_get_caps, .port_enable = b53_enable_port, .port_disable = b53_disable_port, .get_mac_eee = b53_get_mac_eee, .set_mac_eee = b53_set_mac_eee, .port_bridge_join = b53_br_join, .port_bridge_leave = b53_br_leave, .port_pre_bridge_flags = b53_br_flags_pre, .port_bridge_flags = b53_br_flags, .port_stp_state_set = b53_br_set_stp_state, .port_fast_age = b53_br_fast_age, .port_vlan_filtering = b53_vlan_filtering, .port_vlan_add = b53_vlan_add, .port_vlan_del = b53_vlan_del, .port_fdb_dump = b53_fdb_dump, .port_fdb_add = b53_fdb_add, .port_fdb_del = b53_fdb_del, .port_mirror_add = b53_mirror_add, .port_mirror_del = b53_mirror_del, .port_mdb_add = b53_mdb_add, .port_mdb_del = b53_mdb_del, .port_max_mtu = b53_get_max_mtu, .port_change_mtu = b53_change_mtu, }; struct b53_chip_data { u32 chip_id; const char *dev_name; u16 vlans; u16 enabled_ports; u8 imp_port; u8 cpu_port; u8 vta_regs[3]; u8 arl_bins; u16 arl_buckets; u8 duplex_reg; u8 jumbo_pm_reg; u8 jumbo_size_reg; }; #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", .vlans = 16, .enabled_ports = 0x3f, .arl_bins = 2, .arl_buckets = 1024, .imp_port = 5, .duplex_reg = B53_DUPLEX_STAT_FE, }, { .chip_id = BCM5365_DEVICE_ID, .dev_name = "BCM5365", .vlans = 256, .enabled_ports = 0x3f, .arl_bins = 2, .arl_buckets = 1024, .imp_port = 5, .duplex_reg = B53_DUPLEX_STAT_FE, }, { .chip_id = BCM5389_DEVICE_ID, .dev_name = "BCM5389", .vlans = 4096, .enabled_ports = 0x11f, .arl_bins = 4, .arl_buckets = 1024, .imp_port = 8, .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, }, { .chip_id = BCM5395_DEVICE_ID, .dev_name = "BCM5395", .vlans = 4096, .enabled_ports = 0x11f, .arl_bins = 4, .arl_buckets = 1024, .imp_port = 8, .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, }, { .chip_id = BCM5397_DEVICE_ID, .dev_name = "BCM5397", .vlans = 4096, .enabled_ports = 0x11f, .arl_bins = 4, .arl_buckets = 1024, .imp_port = 8, .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, }, { .chip_id = BCM5398_DEVICE_ID, .dev_name = "BCM5398", .vlans = 4096, .enabled_ports = 0x17f, .arl_bins = 4, .arl_buckets = 1024, .imp_port = 8, .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, }, { .chip_id = BCM53115_DEVICE_ID, .dev_name = "BCM53115", .vlans = 4096, .enabled_ports = 0x11f, .arl_bins = 4, .arl_buckets = 1024, .vta_regs = B53_VTA_REGS, .imp_port = 8, .duplex_reg = B53_DUPLEX_STAT_GE, .jumbo_pm_reg = B53_JUMBO_PORT_MASK, .jumbo_size_reg = B53_JUMBO_MAX_SIZE, }, { .chip_id = BCM53125_DEVICE_ID, .dev_name = "BCM53125", .vlans = 4096, .enabled_ports = 0x1ff, .arl_bins = 4, .arl_buckets = 1024, .imp_port = 8, .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, }, { .chip_id = BCM53128_DEVICE_ID, .dev_name = "BCM53128", .vlans = 4096, .enabled_ports = 0x1ff, .arl_bins = 4, .arl_buckets = 1024, .imp_port = 8, .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, }, { .chip_id = BCM63XX_DEVICE_ID, .dev_name = "BCM63xx", .vlans = 4096, .enabled_ports = 0, /* pdata must provide them */ .arl_bins = 4, .arl_buckets = 1024, .imp_port = 8, .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, }, { .chip_id = BCM63268_DEVICE_ID, .dev_name = "BCM63268", .vlans = 4096, .enabled_ports = 0, /* pdata must provide them */ .arl_bins = 4, .arl_buckets = 1024, .imp_port = 8, .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, }, { .chip_id = BCM53010_DEVICE_ID, .dev_name = "BCM53010", .vlans = 4096, .enabled_ports = 0x1bf, .arl_bins = 4, .arl_buckets = 1024, .imp_port = 8, .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, }, { .chip_id = BCM53011_DEVICE_ID, .dev_name = "BCM53011", .vlans = 4096, .enabled_ports = 0x1bf, .arl_bins = 4, .arl_buckets = 1024, .imp_port = 8, .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, }, { .chip_id = BCM53012_DEVICE_ID, .dev_name = "BCM53012", .vlans = 4096, .enabled_ports = 0x1bf, .arl_bins = 4, .arl_buckets = 1024, .imp_port = 8, .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, }, { .chip_id = BCM53018_DEVICE_ID, .dev_name = "BCM53018", .vlans = 4096, .enabled_ports = 0x1bf, .arl_bins = 4, .arl_buckets = 1024, .imp_port = 8, .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, }, { .chip_id = BCM53019_DEVICE_ID, .dev_name = "BCM53019", .vlans = 4096, .enabled_ports = 0x1bf, .arl_bins = 4, .arl_buckets = 1024, .imp_port = 8, .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, }, { .chip_id = BCM58XX_DEVICE_ID, .dev_name = "BCM585xx/586xx/88312", .vlans = 4096, .enabled_ports = 0x1ff, .arl_bins = 4, .arl_buckets = 1024, .imp_port = 8, .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, }, { .chip_id = BCM583XX_DEVICE_ID, .dev_name = "BCM583xx/11360", .vlans = 4096, .enabled_ports = 0x103, .arl_bins = 4, .arl_buckets = 1024, .imp_port = 8, .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, }, /* Starfighter 2 */ { .chip_id = BCM4908_DEVICE_ID, .dev_name = "BCM4908", .vlans = 4096, .enabled_ports = 0x1bf, .arl_bins = 4, .arl_buckets = 256, .imp_port = 8, .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, }, { .chip_id = BCM7445_DEVICE_ID, .dev_name = "BCM7445", .vlans = 4096, .enabled_ports = 0x1ff, .arl_bins = 4, .arl_buckets = 1024, .imp_port = 8, .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, }, { .chip_id = BCM7278_DEVICE_ID, .dev_name = "BCM7278", .vlans = 4096, .enabled_ports = 0x1ff, .arl_bins = 4, .arl_buckets = 256, .imp_port = 8, .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, }, { .chip_id = BCM53134_DEVICE_ID, .dev_name = "BCM53134", .vlans = 4096, .enabled_ports = 0x12f, .imp_port = 8, .cpu_port = B53_CPU_PORT, .vta_regs = B53_VTA_REGS, .arl_bins = 4, .arl_buckets = 1024, .duplex_reg = B53_DUPLEX_STAT_GE, .jumbo_pm_reg = B53_JUMBO_PORT_MASK, .jumbo_size_reg = B53_JUMBO_MAX_SIZE, }, }; static int b53_switch_init(struct b53_device *dev) { unsigned int 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) { if (!dev->enabled_ports) dev->enabled_ports = chip->enabled_ports; dev->name = chip->dev_name; 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; dev->imp_port = chip->imp_port; dev->num_vlans = chip->vlans; dev->num_arl_bins = chip->arl_bins; dev->num_arl_buckets = chip->arl_buckets; break; } } /* 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 } } dev->num_ports = fls(dev->enabled_ports); dev->ds->num_ports = min_t(unsigned int, dev->num_ports, DSA_MAX_PORTS); /* Include non standard CPU port built-in PHYs to be probed */ if (is539x(dev) || is531x5(dev)) { for (i = 0; i < dev->num_ports; i++) { if (!(dev->ds->phys_mii_mask & BIT(i)) && !b53_possible_cpu_port(dev->ds, i)) dev->ds->phys_mii_mask |= BIT(i); } } dev->ports = devm_kcalloc(dev->dev, dev->num_ports, sizeof(struct b53_port), GFP_KERNEL); if (!dev->ports) return -ENOMEM; dev->vlans = devm_kcalloc(dev->dev, dev->num_vlans, sizeof(struct b53_vlan), GFP_KERNEL); if (!dev->vlans) 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 0; } struct b53_device *b53_switch_alloc(struct device *base, const struct b53_io_ops *ops, void *priv) { struct dsa_switch *ds; struct b53_device *dev; ds = devm_kzalloc(base, sizeof(*ds), GFP_KERNEL); if (!ds) return NULL; ds->dev = base; dev = devm_kzalloc(base, sizeof(*dev), GFP_KERNEL); if (!dev) return NULL; ds->priv = dev; dev->dev = base; dev->ds = ds; dev->priv = priv; dev->ops = ops; ds->ops = &b53_switch_ops; ds->phylink_mac_ops = &b53_phylink_mac_ops; dev->vlan_enabled = true; /* Let DSA handle the case were multiple bridges span the same switch * device and different VLAN awareness settings are requested, which * would be breaking filtering semantics for any of the other bridge * devices. (not hardware supported) */ ds->vlan_filtering_is_global = true; mutex_init(&dev->reg_mutex); mutex_init(&dev->stats_mutex); mutex_init(&dev->arl_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 BCM5389_DEVICE_ID: 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: case BCM53134_DEVICE_ID: dev->chip_id = id32; break; default: dev_err(dev->dev, "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; } if (!dev->chip_id && b53_switch_detect(dev)) return -EINVAL; ret = b53_switch_init(dev); if (ret) return ret; dev_info(dev->dev, "found switch: %s, rev %i\n", dev->name, dev->core_rev); return dsa_register_switch(dev->ds); } EXPORT_SYMBOL(b53_switch_register); MODULE_AUTHOR("Jonas Gorski <jogo@openwrt.org>"); MODULE_DESCRIPTION("B53 switch library"); MODULE_LICENSE("Dual BSD/GPL");
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