| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Microchip KSZ8795 switch driver |
| * |
| * Copyright (C) 2017 Microchip Technology Inc. |
| * Tristram Ha <Tristram.Ha@microchip.com> |
| */ |
| |
| #include <linux/delay.h> |
| #include <linux/export.h> |
| #include <linux/gpio.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/platform_data/microchip-ksz.h> |
| #include <linux/phy.h> |
| #include <linux/etherdevice.h> |
| #include <linux/if_bridge.h> |
| #include <net/dsa.h> |
| #include <net/switchdev.h> |
| |
| #include "ksz_common.h" |
| #include "ksz8795_reg.h" |
| |
| static const struct { |
| char string[ETH_GSTRING_LEN]; |
| } mib_names[] = { |
| { "rx_hi" }, |
| { "rx_undersize" }, |
| { "rx_fragments" }, |
| { "rx_oversize" }, |
| { "rx_jabbers" }, |
| { "rx_symbol_err" }, |
| { "rx_crc_err" }, |
| { "rx_align_err" }, |
| { "rx_mac_ctrl" }, |
| { "rx_pause" }, |
| { "rx_bcast" }, |
| { "rx_mcast" }, |
| { "rx_ucast" }, |
| { "rx_64_or_less" }, |
| { "rx_65_127" }, |
| { "rx_128_255" }, |
| { "rx_256_511" }, |
| { "rx_512_1023" }, |
| { "rx_1024_1522" }, |
| { "rx_1523_2000" }, |
| { "rx_2001" }, |
| { "tx_hi" }, |
| { "tx_late_col" }, |
| { "tx_pause" }, |
| { "tx_bcast" }, |
| { "tx_mcast" }, |
| { "tx_ucast" }, |
| { "tx_deferred" }, |
| { "tx_total_col" }, |
| { "tx_exc_col" }, |
| { "tx_single_col" }, |
| { "tx_mult_col" }, |
| { "rx_total" }, |
| { "tx_total" }, |
| { "rx_discards" }, |
| { "tx_discards" }, |
| }; |
| |
| static void ksz_cfg(struct ksz_device *dev, u32 addr, u8 bits, bool set) |
| { |
| regmap_update_bits(dev->regmap[0], addr, bits, set ? bits : 0); |
| } |
| |
| static void ksz_port_cfg(struct ksz_device *dev, int port, int offset, u8 bits, |
| bool set) |
| { |
| regmap_update_bits(dev->regmap[0], PORT_CTRL_ADDR(port, offset), |
| bits, set ? bits : 0); |
| } |
| |
| static int ksz8795_reset_switch(struct ksz_device *dev) |
| { |
| /* reset switch */ |
| ksz_write8(dev, REG_POWER_MANAGEMENT_1, |
| SW_SOFTWARE_POWER_DOWN << SW_POWER_MANAGEMENT_MODE_S); |
| ksz_write8(dev, REG_POWER_MANAGEMENT_1, 0); |
| |
| return 0; |
| } |
| |
| static void ksz8795_set_prio_queue(struct ksz_device *dev, int port, int queue) |
| { |
| u8 hi, lo; |
| |
| /* Number of queues can only be 1, 2, or 4. */ |
| switch (queue) { |
| case 4: |
| case 3: |
| queue = PORT_QUEUE_SPLIT_4; |
| break; |
| case 2: |
| queue = PORT_QUEUE_SPLIT_2; |
| break; |
| default: |
| queue = PORT_QUEUE_SPLIT_1; |
| } |
| ksz_pread8(dev, port, REG_PORT_CTRL_0, &lo); |
| ksz_pread8(dev, port, P_DROP_TAG_CTRL, &hi); |
| lo &= ~PORT_QUEUE_SPLIT_L; |
| if (queue & PORT_QUEUE_SPLIT_2) |
| lo |= PORT_QUEUE_SPLIT_L; |
| hi &= ~PORT_QUEUE_SPLIT_H; |
| if (queue & PORT_QUEUE_SPLIT_4) |
| hi |= PORT_QUEUE_SPLIT_H; |
| ksz_pwrite8(dev, port, REG_PORT_CTRL_0, lo); |
| ksz_pwrite8(dev, port, P_DROP_TAG_CTRL, hi); |
| |
| /* Default is port based for egress rate limit. */ |
| if (queue != PORT_QUEUE_SPLIT_1) |
| ksz_cfg(dev, REG_SW_CTRL_19, SW_OUT_RATE_LIMIT_QUEUE_BASED, |
| true); |
| } |
| |
| static void ksz8795_r_mib_cnt(struct ksz_device *dev, int port, u16 addr, |
| u64 *cnt) |
| { |
| u16 ctrl_addr; |
| u32 data; |
| u8 check; |
| int loop; |
| |
| ctrl_addr = addr + dev->reg_mib_cnt * port; |
| ctrl_addr |= IND_ACC_TABLE(TABLE_MIB | TABLE_READ); |
| |
| mutex_lock(&dev->alu_mutex); |
| ksz_write16(dev, REG_IND_CTRL_0, ctrl_addr); |
| |
| /* It is almost guaranteed to always read the valid bit because of |
| * slow SPI speed. |
| */ |
| for (loop = 2; loop > 0; loop--) { |
| ksz_read8(dev, REG_IND_MIB_CHECK, &check); |
| |
| if (check & MIB_COUNTER_VALID) { |
| ksz_read32(dev, REG_IND_DATA_LO, &data); |
| if (check & MIB_COUNTER_OVERFLOW) |
| *cnt += MIB_COUNTER_VALUE + 1; |
| *cnt += data & MIB_COUNTER_VALUE; |
| break; |
| } |
| } |
| mutex_unlock(&dev->alu_mutex); |
| } |
| |
| static void ksz8795_r_mib_pkt(struct ksz_device *dev, int port, u16 addr, |
| u64 *dropped, u64 *cnt) |
| { |
| u16 ctrl_addr; |
| u32 data; |
| u8 check; |
| int loop; |
| |
| addr -= dev->reg_mib_cnt; |
| ctrl_addr = (KS_MIB_TOTAL_RX_1 - KS_MIB_TOTAL_RX_0) * port; |
| ctrl_addr += addr + KS_MIB_TOTAL_RX_0; |
| ctrl_addr |= IND_ACC_TABLE(TABLE_MIB | TABLE_READ); |
| |
| mutex_lock(&dev->alu_mutex); |
| ksz_write16(dev, REG_IND_CTRL_0, ctrl_addr); |
| |
| /* It is almost guaranteed to always read the valid bit because of |
| * slow SPI speed. |
| */ |
| for (loop = 2; loop > 0; loop--) { |
| ksz_read8(dev, REG_IND_MIB_CHECK, &check); |
| |
| if (check & MIB_COUNTER_VALID) { |
| ksz_read32(dev, REG_IND_DATA_LO, &data); |
| if (addr < 2) { |
| u64 total; |
| |
| total = check & MIB_TOTAL_BYTES_H; |
| total <<= 32; |
| *cnt += total; |
| *cnt += data; |
| if (check & MIB_COUNTER_OVERFLOW) { |
| total = MIB_TOTAL_BYTES_H + 1; |
| total <<= 32; |
| *cnt += total; |
| } |
| } else { |
| if (check & MIB_COUNTER_OVERFLOW) |
| *cnt += MIB_PACKET_DROPPED + 1; |
| *cnt += data & MIB_PACKET_DROPPED; |
| } |
| break; |
| } |
| } |
| mutex_unlock(&dev->alu_mutex); |
| } |
| |
| static void ksz8795_freeze_mib(struct ksz_device *dev, int port, bool freeze) |
| { |
| /* enable the port for flush/freeze function */ |
| if (freeze) |
| ksz_cfg(dev, REG_SW_CTRL_6, BIT(port), true); |
| ksz_cfg(dev, REG_SW_CTRL_6, SW_MIB_COUNTER_FREEZE, freeze); |
| |
| /* disable the port after freeze is done */ |
| if (!freeze) |
| ksz_cfg(dev, REG_SW_CTRL_6, BIT(port), false); |
| } |
| |
| static void ksz8795_port_init_cnt(struct ksz_device *dev, int port) |
| { |
| struct ksz_port_mib *mib = &dev->ports[port].mib; |
| |
| /* flush all enabled port MIB counters */ |
| ksz_cfg(dev, REG_SW_CTRL_6, BIT(port), true); |
| ksz_cfg(dev, REG_SW_CTRL_6, SW_MIB_COUNTER_FLUSH, true); |
| ksz_cfg(dev, REG_SW_CTRL_6, BIT(port), false); |
| |
| mib->cnt_ptr = 0; |
| |
| /* Some ports may not have MIB counters before SWITCH_COUNTER_NUM. */ |
| while (mib->cnt_ptr < dev->reg_mib_cnt) { |
| dev->dev_ops->r_mib_cnt(dev, port, mib->cnt_ptr, |
| &mib->counters[mib->cnt_ptr]); |
| ++mib->cnt_ptr; |
| } |
| |
| /* Some ports may not have MIB counters after SWITCH_COUNTER_NUM. */ |
| while (mib->cnt_ptr < dev->mib_cnt) { |
| dev->dev_ops->r_mib_pkt(dev, port, mib->cnt_ptr, |
| NULL, &mib->counters[mib->cnt_ptr]); |
| ++mib->cnt_ptr; |
| } |
| mib->cnt_ptr = 0; |
| memset(mib->counters, 0, dev->mib_cnt * sizeof(u64)); |
| } |
| |
| static void ksz8795_r_table(struct ksz_device *dev, int table, u16 addr, |
| u64 *data) |
| { |
| u16 ctrl_addr; |
| |
| ctrl_addr = IND_ACC_TABLE(table | TABLE_READ) | addr; |
| |
| mutex_lock(&dev->alu_mutex); |
| ksz_write16(dev, REG_IND_CTRL_0, ctrl_addr); |
| ksz_read64(dev, REG_IND_DATA_HI, data); |
| mutex_unlock(&dev->alu_mutex); |
| } |
| |
| static void ksz8795_w_table(struct ksz_device *dev, int table, u16 addr, |
| u64 data) |
| { |
| u16 ctrl_addr; |
| |
| ctrl_addr = IND_ACC_TABLE(table) | addr; |
| |
| mutex_lock(&dev->alu_mutex); |
| ksz_write64(dev, REG_IND_DATA_HI, data); |
| ksz_write16(dev, REG_IND_CTRL_0, ctrl_addr); |
| mutex_unlock(&dev->alu_mutex); |
| } |
| |
| static int ksz8795_valid_dyn_entry(struct ksz_device *dev, u8 *data) |
| { |
| int timeout = 100; |
| |
| do { |
| ksz_read8(dev, REG_IND_DATA_CHECK, data); |
| timeout--; |
| } while ((*data & DYNAMIC_MAC_TABLE_NOT_READY) && timeout); |
| |
| /* Entry is not ready for accessing. */ |
| if (*data & DYNAMIC_MAC_TABLE_NOT_READY) { |
| return -EAGAIN; |
| /* Entry is ready for accessing. */ |
| } else { |
| ksz_read8(dev, REG_IND_DATA_8, data); |
| |
| /* There is no valid entry in the table. */ |
| if (*data & DYNAMIC_MAC_TABLE_MAC_EMPTY) |
| return -ENXIO; |
| } |
| return 0; |
| } |
| |
| static int ksz8795_r_dyn_mac_table(struct ksz_device *dev, u16 addr, |
| u8 *mac_addr, u8 *fid, u8 *src_port, |
| u8 *timestamp, u16 *entries) |
| { |
| u32 data_hi, data_lo; |
| u16 ctrl_addr; |
| u8 data; |
| int rc; |
| |
| ctrl_addr = IND_ACC_TABLE(TABLE_DYNAMIC_MAC | TABLE_READ) | addr; |
| |
| mutex_lock(&dev->alu_mutex); |
| ksz_write16(dev, REG_IND_CTRL_0, ctrl_addr); |
| |
| rc = ksz8795_valid_dyn_entry(dev, &data); |
| if (rc == -EAGAIN) { |
| if (addr == 0) |
| *entries = 0; |
| } else if (rc == -ENXIO) { |
| *entries = 0; |
| /* At least one valid entry in the table. */ |
| } else { |
| u64 buf = 0; |
| int cnt; |
| |
| ksz_read64(dev, REG_IND_DATA_HI, &buf); |
| data_hi = (u32)(buf >> 32); |
| data_lo = (u32)buf; |
| |
| /* Check out how many valid entry in the table. */ |
| cnt = data & DYNAMIC_MAC_TABLE_ENTRIES_H; |
| cnt <<= DYNAMIC_MAC_ENTRIES_H_S; |
| cnt |= (data_hi & DYNAMIC_MAC_TABLE_ENTRIES) >> |
| DYNAMIC_MAC_ENTRIES_S; |
| *entries = cnt + 1; |
| |
| *fid = (data_hi & DYNAMIC_MAC_TABLE_FID) >> |
| DYNAMIC_MAC_FID_S; |
| *src_port = (data_hi & DYNAMIC_MAC_TABLE_SRC_PORT) >> |
| DYNAMIC_MAC_SRC_PORT_S; |
| *timestamp = (data_hi & DYNAMIC_MAC_TABLE_TIMESTAMP) >> |
| DYNAMIC_MAC_TIMESTAMP_S; |
| |
| mac_addr[5] = (u8)data_lo; |
| mac_addr[4] = (u8)(data_lo >> 8); |
| mac_addr[3] = (u8)(data_lo >> 16); |
| mac_addr[2] = (u8)(data_lo >> 24); |
| |
| mac_addr[1] = (u8)data_hi; |
| mac_addr[0] = (u8)(data_hi >> 8); |
| rc = 0; |
| } |
| mutex_unlock(&dev->alu_mutex); |
| |
| return rc; |
| } |
| |
| static int ksz8795_r_sta_mac_table(struct ksz_device *dev, u16 addr, |
| struct alu_struct *alu) |
| { |
| u32 data_hi, data_lo; |
| u64 data; |
| |
| ksz8795_r_table(dev, TABLE_STATIC_MAC, addr, &data); |
| data_hi = data >> 32; |
| data_lo = (u32)data; |
| if (data_hi & (STATIC_MAC_TABLE_VALID | STATIC_MAC_TABLE_OVERRIDE)) { |
| alu->mac[5] = (u8)data_lo; |
| alu->mac[4] = (u8)(data_lo >> 8); |
| alu->mac[3] = (u8)(data_lo >> 16); |
| alu->mac[2] = (u8)(data_lo >> 24); |
| alu->mac[1] = (u8)data_hi; |
| alu->mac[0] = (u8)(data_hi >> 8); |
| alu->port_forward = (data_hi & STATIC_MAC_TABLE_FWD_PORTS) >> |
| STATIC_MAC_FWD_PORTS_S; |
| alu->is_override = |
| (data_hi & STATIC_MAC_TABLE_OVERRIDE) ? 1 : 0; |
| data_hi >>= 1; |
| alu->is_use_fid = (data_hi & STATIC_MAC_TABLE_USE_FID) ? 1 : 0; |
| alu->fid = (data_hi & STATIC_MAC_TABLE_FID) >> |
| STATIC_MAC_FID_S; |
| return 0; |
| } |
| return -ENXIO; |
| } |
| |
| static void ksz8795_w_sta_mac_table(struct ksz_device *dev, u16 addr, |
| struct alu_struct *alu) |
| { |
| u32 data_hi, data_lo; |
| u64 data; |
| |
| data_lo = ((u32)alu->mac[2] << 24) | |
| ((u32)alu->mac[3] << 16) | |
| ((u32)alu->mac[4] << 8) | alu->mac[5]; |
| data_hi = ((u32)alu->mac[0] << 8) | alu->mac[1]; |
| data_hi |= (u32)alu->port_forward << STATIC_MAC_FWD_PORTS_S; |
| |
| if (alu->is_override) |
| data_hi |= STATIC_MAC_TABLE_OVERRIDE; |
| if (alu->is_use_fid) { |
| data_hi |= STATIC_MAC_TABLE_USE_FID; |
| data_hi |= (u32)alu->fid << STATIC_MAC_FID_S; |
| } |
| if (alu->is_static) |
| data_hi |= STATIC_MAC_TABLE_VALID; |
| else |
| data_hi &= ~STATIC_MAC_TABLE_OVERRIDE; |
| |
| data = (u64)data_hi << 32 | data_lo; |
| ksz8795_w_table(dev, TABLE_STATIC_MAC, addr, data); |
| } |
| |
| static void ksz8795_from_vlan(u16 vlan, u8 *fid, u8 *member, u8 *valid) |
| { |
| *fid = vlan & VLAN_TABLE_FID; |
| *member = (vlan & VLAN_TABLE_MEMBERSHIP) >> VLAN_TABLE_MEMBERSHIP_S; |
| *valid = !!(vlan & VLAN_TABLE_VALID); |
| } |
| |
| static void ksz8795_to_vlan(u8 fid, u8 member, u8 valid, u16 *vlan) |
| { |
| *vlan = fid; |
| *vlan |= (u16)member << VLAN_TABLE_MEMBERSHIP_S; |
| if (valid) |
| *vlan |= VLAN_TABLE_VALID; |
| } |
| |
| static void ksz8795_r_vlan_entries(struct ksz_device *dev, u16 addr) |
| { |
| u64 data; |
| int i; |
| |
| ksz8795_r_table(dev, TABLE_VLAN, addr, &data); |
| addr *= dev->phy_port_cnt; |
| for (i = 0; i < dev->phy_port_cnt; i++) { |
| dev->vlan_cache[addr + i].table[0] = (u16)data; |
| data >>= VLAN_TABLE_S; |
| } |
| } |
| |
| static void ksz8795_r_vlan_table(struct ksz_device *dev, u16 vid, u16 *vlan) |
| { |
| int index; |
| u16 *data; |
| u16 addr; |
| u64 buf; |
| |
| data = (u16 *)&buf; |
| addr = vid / dev->phy_port_cnt; |
| index = vid & 3; |
| ksz8795_r_table(dev, TABLE_VLAN, addr, &buf); |
| *vlan = data[index]; |
| } |
| |
| static void ksz8795_w_vlan_table(struct ksz_device *dev, u16 vid, u16 vlan) |
| { |
| int index; |
| u16 *data; |
| u16 addr; |
| u64 buf; |
| |
| data = (u16 *)&buf; |
| addr = vid / dev->phy_port_cnt; |
| index = vid & 3; |
| ksz8795_r_table(dev, TABLE_VLAN, addr, &buf); |
| data[index] = vlan; |
| dev->vlan_cache[vid].table[0] = vlan; |
| ksz8795_w_table(dev, TABLE_VLAN, addr, buf); |
| } |
| |
| static void ksz8795_r_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 *val) |
| { |
| u8 restart, speed, ctrl, link; |
| int processed = true; |
| u16 data = 0; |
| u8 p = phy; |
| |
| switch (reg) { |
| case PHY_REG_CTRL: |
| ksz_pread8(dev, p, P_NEG_RESTART_CTRL, &restart); |
| ksz_pread8(dev, p, P_SPEED_STATUS, &speed); |
| ksz_pread8(dev, p, P_FORCE_CTRL, &ctrl); |
| if (restart & PORT_PHY_LOOPBACK) |
| data |= PHY_LOOPBACK; |
| if (ctrl & PORT_FORCE_100_MBIT) |
| data |= PHY_SPEED_100MBIT; |
| if (!(ctrl & PORT_AUTO_NEG_DISABLE)) |
| data |= PHY_AUTO_NEG_ENABLE; |
| if (restart & PORT_POWER_DOWN) |
| data |= PHY_POWER_DOWN; |
| if (restart & PORT_AUTO_NEG_RESTART) |
| data |= PHY_AUTO_NEG_RESTART; |
| if (ctrl & PORT_FORCE_FULL_DUPLEX) |
| data |= PHY_FULL_DUPLEX; |
| if (speed & PORT_HP_MDIX) |
| data |= PHY_HP_MDIX; |
| if (restart & PORT_FORCE_MDIX) |
| data |= PHY_FORCE_MDIX; |
| if (restart & PORT_AUTO_MDIX_DISABLE) |
| data |= PHY_AUTO_MDIX_DISABLE; |
| if (restart & PORT_TX_DISABLE) |
| data |= PHY_TRANSMIT_DISABLE; |
| if (restart & PORT_LED_OFF) |
| data |= PHY_LED_DISABLE; |
| break; |
| case PHY_REG_STATUS: |
| ksz_pread8(dev, p, P_LINK_STATUS, &link); |
| data = PHY_100BTX_FD_CAPABLE | |
| PHY_100BTX_CAPABLE | |
| PHY_10BT_FD_CAPABLE | |
| PHY_10BT_CAPABLE | |
| PHY_AUTO_NEG_CAPABLE; |
| if (link & PORT_AUTO_NEG_COMPLETE) |
| data |= PHY_AUTO_NEG_ACKNOWLEDGE; |
| if (link & PORT_STAT_LINK_GOOD) |
| data |= PHY_LINK_STATUS; |
| break; |
| case PHY_REG_ID_1: |
| data = KSZ8795_ID_HI; |
| break; |
| case PHY_REG_ID_2: |
| data = KSZ8795_ID_LO; |
| break; |
| case PHY_REG_AUTO_NEGOTIATION: |
| ksz_pread8(dev, p, P_LOCAL_CTRL, &ctrl); |
| data = PHY_AUTO_NEG_802_3; |
| if (ctrl & PORT_AUTO_NEG_SYM_PAUSE) |
| data |= PHY_AUTO_NEG_SYM_PAUSE; |
| if (ctrl & PORT_AUTO_NEG_100BTX_FD) |
| data |= PHY_AUTO_NEG_100BTX_FD; |
| if (ctrl & PORT_AUTO_NEG_100BTX) |
| data |= PHY_AUTO_NEG_100BTX; |
| if (ctrl & PORT_AUTO_NEG_10BT_FD) |
| data |= PHY_AUTO_NEG_10BT_FD; |
| if (ctrl & PORT_AUTO_NEG_10BT) |
| data |= PHY_AUTO_NEG_10BT; |
| break; |
| case PHY_REG_REMOTE_CAPABILITY: |
| ksz_pread8(dev, p, P_REMOTE_STATUS, &link); |
| data = PHY_AUTO_NEG_802_3; |
| if (link & PORT_REMOTE_SYM_PAUSE) |
| data |= PHY_AUTO_NEG_SYM_PAUSE; |
| if (link & PORT_REMOTE_100BTX_FD) |
| data |= PHY_AUTO_NEG_100BTX_FD; |
| if (link & PORT_REMOTE_100BTX) |
| data |= PHY_AUTO_NEG_100BTX; |
| if (link & PORT_REMOTE_10BT_FD) |
| data |= PHY_AUTO_NEG_10BT_FD; |
| if (link & PORT_REMOTE_10BT) |
| data |= PHY_AUTO_NEG_10BT; |
| if (data & ~PHY_AUTO_NEG_802_3) |
| data |= PHY_REMOTE_ACKNOWLEDGE_NOT; |
| break; |
| default: |
| processed = false; |
| break; |
| } |
| if (processed) |
| *val = data; |
| } |
| |
| static void ksz8795_w_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 val) |
| { |
| u8 p = phy; |
| u8 restart, speed, ctrl, data; |
| |
| switch (reg) { |
| case PHY_REG_CTRL: |
| |
| /* Do not support PHY reset function. */ |
| if (val & PHY_RESET) |
| break; |
| ksz_pread8(dev, p, P_SPEED_STATUS, &speed); |
| data = speed; |
| if (val & PHY_HP_MDIX) |
| data |= PORT_HP_MDIX; |
| else |
| data &= ~PORT_HP_MDIX; |
| if (data != speed) |
| ksz_pwrite8(dev, p, P_SPEED_STATUS, data); |
| ksz_pread8(dev, p, P_FORCE_CTRL, &ctrl); |
| data = ctrl; |
| if (!(val & PHY_AUTO_NEG_ENABLE)) |
| data |= PORT_AUTO_NEG_DISABLE; |
| else |
| data &= ~PORT_AUTO_NEG_DISABLE; |
| |
| /* Fiber port does not support auto-negotiation. */ |
| if (dev->ports[p].fiber) |
| data |= PORT_AUTO_NEG_DISABLE; |
| if (val & PHY_SPEED_100MBIT) |
| data |= PORT_FORCE_100_MBIT; |
| else |
| data &= ~PORT_FORCE_100_MBIT; |
| if (val & PHY_FULL_DUPLEX) |
| data |= PORT_FORCE_FULL_DUPLEX; |
| else |
| data &= ~PORT_FORCE_FULL_DUPLEX; |
| if (data != ctrl) |
| ksz_pwrite8(dev, p, P_FORCE_CTRL, data); |
| ksz_pread8(dev, p, P_NEG_RESTART_CTRL, &restart); |
| data = restart; |
| if (val & PHY_LED_DISABLE) |
| data |= PORT_LED_OFF; |
| else |
| data &= ~PORT_LED_OFF; |
| if (val & PHY_TRANSMIT_DISABLE) |
| data |= PORT_TX_DISABLE; |
| else |
| data &= ~PORT_TX_DISABLE; |
| if (val & PHY_AUTO_NEG_RESTART) |
| data |= PORT_AUTO_NEG_RESTART; |
| else |
| data &= ~(PORT_AUTO_NEG_RESTART); |
| if (val & PHY_POWER_DOWN) |
| data |= PORT_POWER_DOWN; |
| else |
| data &= ~PORT_POWER_DOWN; |
| if (val & PHY_AUTO_MDIX_DISABLE) |
| data |= PORT_AUTO_MDIX_DISABLE; |
| else |
| data &= ~PORT_AUTO_MDIX_DISABLE; |
| if (val & PHY_FORCE_MDIX) |
| data |= PORT_FORCE_MDIX; |
| else |
| data &= ~PORT_FORCE_MDIX; |
| if (val & PHY_LOOPBACK) |
| data |= PORT_PHY_LOOPBACK; |
| else |
| data &= ~PORT_PHY_LOOPBACK; |
| if (data != restart) |
| ksz_pwrite8(dev, p, P_NEG_RESTART_CTRL, data); |
| break; |
| case PHY_REG_AUTO_NEGOTIATION: |
| ksz_pread8(dev, p, P_LOCAL_CTRL, &ctrl); |
| data = ctrl; |
| data &= ~(PORT_AUTO_NEG_SYM_PAUSE | |
| PORT_AUTO_NEG_100BTX_FD | |
| PORT_AUTO_NEG_100BTX | |
| PORT_AUTO_NEG_10BT_FD | |
| PORT_AUTO_NEG_10BT); |
| if (val & PHY_AUTO_NEG_SYM_PAUSE) |
| data |= PORT_AUTO_NEG_SYM_PAUSE; |
| if (val & PHY_AUTO_NEG_100BTX_FD) |
| data |= PORT_AUTO_NEG_100BTX_FD; |
| if (val & PHY_AUTO_NEG_100BTX) |
| data |= PORT_AUTO_NEG_100BTX; |
| if (val & PHY_AUTO_NEG_10BT_FD) |
| data |= PORT_AUTO_NEG_10BT_FD; |
| if (val & PHY_AUTO_NEG_10BT) |
| data |= PORT_AUTO_NEG_10BT; |
| if (data != ctrl) |
| ksz_pwrite8(dev, p, P_LOCAL_CTRL, data); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static enum dsa_tag_protocol ksz8795_get_tag_protocol(struct dsa_switch *ds, |
| int port, |
| enum dsa_tag_protocol mp) |
| { |
| return DSA_TAG_PROTO_KSZ8795; |
| } |
| |
| static void ksz8795_get_strings(struct dsa_switch *ds, int port, |
| u32 stringset, uint8_t *buf) |
| { |
| struct ksz_device *dev = ds->priv; |
| int i; |
| |
| for (i = 0; i < dev->mib_cnt; i++) { |
| memcpy(buf + i * ETH_GSTRING_LEN, mib_names[i].string, |
| ETH_GSTRING_LEN); |
| } |
| } |
| |
| static void ksz8795_cfg_port_member(struct ksz_device *dev, int port, |
| u8 member) |
| { |
| u8 data; |
| |
| ksz_pread8(dev, port, P_MIRROR_CTRL, &data); |
| data &= ~PORT_VLAN_MEMBERSHIP; |
| data |= (member & dev->port_mask); |
| ksz_pwrite8(dev, port, P_MIRROR_CTRL, data); |
| dev->ports[port].member = member; |
| } |
| |
| static void ksz8795_port_stp_state_set(struct dsa_switch *ds, int port, |
| u8 state) |
| { |
| struct ksz_device *dev = ds->priv; |
| int forward = dev->member; |
| struct ksz_port *p; |
| int member = -1; |
| u8 data; |
| |
| p = &dev->ports[port]; |
| |
| ksz_pread8(dev, port, P_STP_CTRL, &data); |
| data &= ~(PORT_TX_ENABLE | PORT_RX_ENABLE | PORT_LEARN_DISABLE); |
| |
| switch (state) { |
| case BR_STATE_DISABLED: |
| data |= PORT_LEARN_DISABLE; |
| if (port < dev->phy_port_cnt) |
| member = 0; |
| break; |
| case BR_STATE_LISTENING: |
| data |= (PORT_RX_ENABLE | PORT_LEARN_DISABLE); |
| if (port < dev->phy_port_cnt && |
| p->stp_state == BR_STATE_DISABLED) |
| member = dev->host_mask | p->vid_member; |
| break; |
| case BR_STATE_LEARNING: |
| data |= PORT_RX_ENABLE; |
| break; |
| case BR_STATE_FORWARDING: |
| data |= (PORT_TX_ENABLE | PORT_RX_ENABLE); |
| |
| /* This function is also used internally. */ |
| if (port == dev->cpu_port) |
| break; |
| |
| /* Port is a member of a bridge. */ |
| if (dev->br_member & BIT(port)) { |
| dev->member |= BIT(port); |
| member = dev->member; |
| } else { |
| member = dev->host_mask | p->vid_member; |
| } |
| break; |
| case BR_STATE_BLOCKING: |
| data |= PORT_LEARN_DISABLE; |
| if (port < dev->phy_port_cnt && |
| p->stp_state == BR_STATE_DISABLED) |
| member = dev->host_mask | p->vid_member; |
| break; |
| default: |
| dev_err(ds->dev, "invalid STP state: %d\n", state); |
| return; |
| } |
| |
| ksz_pwrite8(dev, port, P_STP_CTRL, data); |
| p->stp_state = state; |
| /* Port membership may share register with STP state. */ |
| if (member >= 0 && member != p->member) |
| ksz8795_cfg_port_member(dev, port, (u8)member); |
| |
| /* Check if forwarding needs to be updated. */ |
| if (state != BR_STATE_FORWARDING) { |
| if (dev->br_member & BIT(port)) |
| dev->member &= ~BIT(port); |
| } |
| |
| /* When topology has changed the function ksz_update_port_member |
| * should be called to modify port forwarding behavior. |
| */ |
| if (forward != dev->member) |
| ksz_update_port_member(dev, port); |
| } |
| |
| static void ksz8795_flush_dyn_mac_table(struct ksz_device *dev, int port) |
| { |
| u8 learn[DSA_MAX_PORTS]; |
| int first, index, cnt; |
| struct ksz_port *p; |
| |
| if ((uint)port < dev->port_cnt) { |
| first = port; |
| cnt = port + 1; |
| } else { |
| /* Flush all ports. */ |
| first = 0; |
| cnt = dev->port_cnt; |
| } |
| for (index = first; index < cnt; index++) { |
| p = &dev->ports[index]; |
| if (!p->on) |
| continue; |
| ksz_pread8(dev, index, P_STP_CTRL, &learn[index]); |
| if (!(learn[index] & PORT_LEARN_DISABLE)) |
| ksz_pwrite8(dev, index, P_STP_CTRL, |
| learn[index] | PORT_LEARN_DISABLE); |
| } |
| ksz_cfg(dev, S_FLUSH_TABLE_CTRL, SW_FLUSH_DYN_MAC_TABLE, true); |
| for (index = first; index < cnt; index++) { |
| p = &dev->ports[index]; |
| if (!p->on) |
| continue; |
| if (!(learn[index] & PORT_LEARN_DISABLE)) |
| ksz_pwrite8(dev, index, P_STP_CTRL, learn[index]); |
| } |
| } |
| |
| static int ksz8795_port_vlan_filtering(struct dsa_switch *ds, int port, |
| bool flag, |
| struct netlink_ext_ack *extack) |
| { |
| struct ksz_device *dev = ds->priv; |
| |
| ksz_cfg(dev, S_MIRROR_CTRL, SW_VLAN_ENABLE, flag); |
| |
| return 0; |
| } |
| |
| static int ksz8795_port_vlan_add(struct dsa_switch *ds, int port, |
| const struct switchdev_obj_port_vlan *vlan, |
| struct netlink_ext_ack *extack) |
| { |
| bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; |
| struct ksz_device *dev = ds->priv; |
| u16 data, new_pvid = 0; |
| u8 fid, member, valid; |
| |
| ksz_port_cfg(dev, port, P_TAG_CTRL, PORT_REMOVE_TAG, untagged); |
| |
| ksz8795_r_vlan_table(dev, vlan->vid, &data); |
| ksz8795_from_vlan(data, &fid, &member, &valid); |
| |
| /* First time to setup the VLAN entry. */ |
| if (!valid) { |
| /* Need to find a way to map VID to FID. */ |
| fid = 1; |
| valid = 1; |
| } |
| member |= BIT(port); |
| |
| ksz8795_to_vlan(fid, member, valid, &data); |
| ksz8795_w_vlan_table(dev, vlan->vid, data); |
| |
| /* change PVID */ |
| if (vlan->flags & BRIDGE_VLAN_INFO_PVID) |
| new_pvid = vlan->vid; |
| |
| if (new_pvid) { |
| u16 vid; |
| |
| ksz_pread16(dev, port, REG_PORT_CTRL_VID, &vid); |
| vid &= 0xfff; |
| vid |= new_pvid; |
| ksz_pwrite16(dev, port, REG_PORT_CTRL_VID, vid); |
| } |
| |
| return 0; |
| } |
| |
| static int ksz8795_port_vlan_del(struct dsa_switch *ds, int port, |
| const struct switchdev_obj_port_vlan *vlan) |
| { |
| bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; |
| struct ksz_device *dev = ds->priv; |
| u16 data, pvid, new_pvid = 0; |
| u8 fid, member, valid; |
| |
| ksz_pread16(dev, port, REG_PORT_CTRL_VID, &pvid); |
| pvid = pvid & 0xFFF; |
| |
| ksz_port_cfg(dev, port, P_TAG_CTRL, PORT_REMOVE_TAG, untagged); |
| |
| ksz8795_r_vlan_table(dev, vlan->vid, &data); |
| ksz8795_from_vlan(data, &fid, &member, &valid); |
| |
| member &= ~BIT(port); |
| |
| /* Invalidate the entry if no more member. */ |
| if (!member) { |
| fid = 0; |
| valid = 0; |
| } |
| |
| if (pvid == vlan->vid) |
| new_pvid = 1; |
| |
| ksz8795_to_vlan(fid, member, valid, &data); |
| ksz8795_w_vlan_table(dev, vlan->vid, data); |
| |
| if (new_pvid != pvid) |
| ksz_pwrite16(dev, port, REG_PORT_CTRL_VID, pvid); |
| |
| return 0; |
| } |
| |
| static int ksz8795_port_mirror_add(struct dsa_switch *ds, int port, |
| struct dsa_mall_mirror_tc_entry *mirror, |
| bool ingress) |
| { |
| struct ksz_device *dev = ds->priv; |
| |
| if (ingress) { |
| ksz_port_cfg(dev, port, P_MIRROR_CTRL, PORT_MIRROR_RX, true); |
| dev->mirror_rx |= BIT(port); |
| } else { |
| ksz_port_cfg(dev, port, P_MIRROR_CTRL, PORT_MIRROR_TX, true); |
| dev->mirror_tx |= BIT(port); |
| } |
| |
| ksz_port_cfg(dev, port, P_MIRROR_CTRL, PORT_MIRROR_SNIFFER, false); |
| |
| /* configure mirror port */ |
| if (dev->mirror_rx || dev->mirror_tx) |
| ksz_port_cfg(dev, mirror->to_local_port, P_MIRROR_CTRL, |
| PORT_MIRROR_SNIFFER, true); |
| |
| return 0; |
| } |
| |
| static void ksz8795_port_mirror_del(struct dsa_switch *ds, int port, |
| struct dsa_mall_mirror_tc_entry *mirror) |
| { |
| struct ksz_device *dev = ds->priv; |
| u8 data; |
| |
| if (mirror->ingress) { |
| ksz_port_cfg(dev, port, P_MIRROR_CTRL, PORT_MIRROR_RX, false); |
| dev->mirror_rx &= ~BIT(port); |
| } else { |
| ksz_port_cfg(dev, port, P_MIRROR_CTRL, PORT_MIRROR_TX, false); |
| dev->mirror_tx &= ~BIT(port); |
| } |
| |
| ksz_pread8(dev, port, P_MIRROR_CTRL, &data); |
| |
| if (!dev->mirror_rx && !dev->mirror_tx) |
| ksz_port_cfg(dev, mirror->to_local_port, P_MIRROR_CTRL, |
| PORT_MIRROR_SNIFFER, false); |
| } |
| |
| static void ksz8795_port_setup(struct ksz_device *dev, int port, bool cpu_port) |
| { |
| struct ksz_port *p = &dev->ports[port]; |
| u8 data8, member; |
| |
| /* enable broadcast storm limit */ |
| ksz_port_cfg(dev, port, P_BCAST_STORM_CTRL, PORT_BROADCAST_STORM, true); |
| |
| ksz8795_set_prio_queue(dev, port, 4); |
| |
| /* disable DiffServ priority */ |
| ksz_port_cfg(dev, port, P_PRIO_CTRL, PORT_DIFFSERV_ENABLE, false); |
| |
| /* replace priority */ |
| ksz_port_cfg(dev, port, P_802_1P_CTRL, PORT_802_1P_REMAPPING, false); |
| |
| /* enable 802.1p priority */ |
| ksz_port_cfg(dev, port, P_PRIO_CTRL, PORT_802_1P_ENABLE, true); |
| |
| if (cpu_port) { |
| if (!p->interface && dev->compat_interface) { |
| dev_warn(dev->dev, |
| "Using legacy switch \"phy-mode\" property, because it is missing on port %d node. " |
| "Please update your device tree.\n", |
| port); |
| p->interface = dev->compat_interface; |
| } |
| |
| /* Configure MII interface for proper network communication. */ |
| ksz_read8(dev, REG_PORT_5_CTRL_6, &data8); |
| data8 &= ~PORT_INTERFACE_TYPE; |
| data8 &= ~PORT_GMII_1GPS_MODE; |
| switch (p->interface) { |
| case PHY_INTERFACE_MODE_MII: |
| p->phydev.speed = SPEED_100; |
| break; |
| case PHY_INTERFACE_MODE_RMII: |
| data8 |= PORT_INTERFACE_RMII; |
| p->phydev.speed = SPEED_100; |
| break; |
| case PHY_INTERFACE_MODE_GMII: |
| data8 |= PORT_GMII_1GPS_MODE; |
| data8 |= PORT_INTERFACE_GMII; |
| p->phydev.speed = SPEED_1000; |
| break; |
| default: |
| data8 &= ~PORT_RGMII_ID_IN_ENABLE; |
| data8 &= ~PORT_RGMII_ID_OUT_ENABLE; |
| if (p->interface == PHY_INTERFACE_MODE_RGMII_ID || |
| p->interface == PHY_INTERFACE_MODE_RGMII_RXID) |
| data8 |= PORT_RGMII_ID_IN_ENABLE; |
| if (p->interface == PHY_INTERFACE_MODE_RGMII_ID || |
| p->interface == PHY_INTERFACE_MODE_RGMII_TXID) |
| data8 |= PORT_RGMII_ID_OUT_ENABLE; |
| data8 |= PORT_GMII_1GPS_MODE; |
| data8 |= PORT_INTERFACE_RGMII; |
| p->phydev.speed = SPEED_1000; |
| break; |
| } |
| ksz_write8(dev, REG_PORT_5_CTRL_6, data8); |
| p->phydev.duplex = 1; |
| |
| member = dev->port_mask; |
| } else { |
| member = dev->host_mask | p->vid_member; |
| } |
| ksz8795_cfg_port_member(dev, port, member); |
| } |
| |
| static void ksz8795_config_cpu_port(struct dsa_switch *ds) |
| { |
| struct ksz_device *dev = ds->priv; |
| struct ksz_port *p; |
| u8 remote; |
| int i; |
| |
| /* Switch marks the maximum frame with extra byte as oversize. */ |
| ksz_cfg(dev, REG_SW_CTRL_2, SW_LEGAL_PACKET_DISABLE, true); |
| ksz_cfg(dev, S_TAIL_TAG_CTRL, SW_TAIL_TAG_ENABLE, true); |
| |
| p = &dev->ports[dev->cpu_port]; |
| p->vid_member = dev->port_mask; |
| p->on = 1; |
| |
| ksz8795_port_setup(dev, dev->cpu_port, true); |
| dev->member = dev->host_mask; |
| |
| for (i = 0; i < dev->phy_port_cnt; i++) { |
| p = &dev->ports[i]; |
| |
| /* Initialize to non-zero so that ksz_cfg_port_member() will |
| * be called. |
| */ |
| p->vid_member = BIT(i); |
| p->member = dev->port_mask; |
| ksz8795_port_stp_state_set(ds, i, BR_STATE_DISABLED); |
| |
| /* Last port may be disabled. */ |
| if (i == dev->phy_port_cnt) |
| break; |
| p->on = 1; |
| p->phy = 1; |
| } |
| for (i = 0; i < dev->phy_port_cnt; i++) { |
| p = &dev->ports[i]; |
| if (!p->on) |
| continue; |
| ksz_pread8(dev, i, P_REMOTE_STATUS, &remote); |
| if (remote & PORT_FIBER_MODE) |
| p->fiber = 1; |
| if (p->fiber) |
| ksz_port_cfg(dev, i, P_STP_CTRL, PORT_FORCE_FLOW_CTRL, |
| true); |
| else |
| ksz_port_cfg(dev, i, P_STP_CTRL, PORT_FORCE_FLOW_CTRL, |
| false); |
| } |
| } |
| |
| static int ksz8795_setup(struct dsa_switch *ds) |
| { |
| struct ksz_device *dev = ds->priv; |
| struct alu_struct alu; |
| int i, ret = 0; |
| |
| dev->vlan_cache = devm_kcalloc(dev->dev, sizeof(struct vlan_table), |
| dev->num_vlans, GFP_KERNEL); |
| if (!dev->vlan_cache) |
| return -ENOMEM; |
| |
| ret = ksz8795_reset_switch(dev); |
| if (ret) { |
| dev_err(ds->dev, "failed to reset switch\n"); |
| return ret; |
| } |
| |
| ksz_cfg(dev, S_REPLACE_VID_CTRL, SW_FLOW_CTRL, true); |
| |
| /* Enable automatic fast aging when link changed detected. */ |
| ksz_cfg(dev, S_LINK_AGING_CTRL, SW_LINK_AUTO_AGING, true); |
| |
| /* Enable aggressive back off algorithm in half duplex mode. */ |
| regmap_update_bits(dev->regmap[0], REG_SW_CTRL_1, |
| SW_AGGR_BACKOFF, SW_AGGR_BACKOFF); |
| |
| /* |
| * Make sure unicast VLAN boundary is set as default and |
| * enable no excessive collision drop. |
| */ |
| regmap_update_bits(dev->regmap[0], REG_SW_CTRL_2, |
| UNICAST_VLAN_BOUNDARY | NO_EXC_COLLISION_DROP, |
| UNICAST_VLAN_BOUNDARY | NO_EXC_COLLISION_DROP); |
| |
| ksz8795_config_cpu_port(ds); |
| |
| ksz_cfg(dev, REG_SW_CTRL_2, MULTICAST_STORM_DISABLE, true); |
| |
| ksz_cfg(dev, S_REPLACE_VID_CTRL, SW_REPLACE_VID, false); |
| |
| ksz_cfg(dev, S_MIRROR_CTRL, SW_MIRROR_RX_TX, false); |
| |
| /* set broadcast storm protection 10% rate */ |
| regmap_update_bits(dev->regmap[1], S_REPLACE_VID_CTRL, |
| BROADCAST_STORM_RATE, |
| (BROADCAST_STORM_VALUE * |
| BROADCAST_STORM_PROT_RATE) / 100); |
| |
| for (i = 0; i < (dev->num_vlans / 4); i++) |
| ksz8795_r_vlan_entries(dev, i); |
| |
| /* Setup STP address for STP operation. */ |
| memset(&alu, 0, sizeof(alu)); |
| ether_addr_copy(alu.mac, eth_stp_addr); |
| alu.is_static = true; |
| alu.is_override = true; |
| alu.port_forward = dev->host_mask; |
| |
| ksz8795_w_sta_mac_table(dev, 0, &alu); |
| |
| ksz_init_mib_timer(dev); |
| |
| ds->configure_vlan_while_not_filtering = false; |
| |
| return 0; |
| } |
| |
| static const struct dsa_switch_ops ksz8795_switch_ops = { |
| .get_tag_protocol = ksz8795_get_tag_protocol, |
| .setup = ksz8795_setup, |
| .phy_read = ksz_phy_read16, |
| .phy_write = ksz_phy_write16, |
| .phylink_mac_link_down = ksz_mac_link_down, |
| .port_enable = ksz_enable_port, |
| .get_strings = ksz8795_get_strings, |
| .get_ethtool_stats = ksz_get_ethtool_stats, |
| .get_sset_count = ksz_sset_count, |
| .port_bridge_join = ksz_port_bridge_join, |
| .port_bridge_leave = ksz_port_bridge_leave, |
| .port_stp_state_set = ksz8795_port_stp_state_set, |
| .port_fast_age = ksz_port_fast_age, |
| .port_vlan_filtering = ksz8795_port_vlan_filtering, |
| .port_vlan_add = ksz8795_port_vlan_add, |
| .port_vlan_del = ksz8795_port_vlan_del, |
| .port_fdb_dump = ksz_port_fdb_dump, |
| .port_mdb_add = ksz_port_mdb_add, |
| .port_mdb_del = ksz_port_mdb_del, |
| .port_mirror_add = ksz8795_port_mirror_add, |
| .port_mirror_del = ksz8795_port_mirror_del, |
| }; |
| |
| static u32 ksz8795_get_port_addr(int port, int offset) |
| { |
| return PORT_CTRL_ADDR(port, offset); |
| } |
| |
| static int ksz8795_switch_detect(struct ksz_device *dev) |
| { |
| u8 id1, id2; |
| u16 id16; |
| int ret; |
| |
| /* read chip id */ |
| ret = ksz_read16(dev, REG_CHIP_ID0, &id16); |
| if (ret) |
| return ret; |
| |
| id1 = id16 >> 8; |
| id2 = id16 & SW_CHIP_ID_M; |
| if (id1 != FAMILY_ID || |
| (id2 != CHIP_ID_94 && id2 != CHIP_ID_95)) |
| return -ENODEV; |
| |
| if (id2 == CHIP_ID_95) { |
| u8 val; |
| |
| id2 = 0x95; |
| ksz_read8(dev, REG_PORT_1_STATUS_0, &val); |
| if (val & PORT_FIBER_MODE) |
| id2 = 0x65; |
| } else if (id2 == CHIP_ID_94) { |
| id2 = 0x94; |
| } |
| id16 &= ~0xff; |
| id16 |= id2; |
| dev->chip_id = id16; |
| |
| return 0; |
| } |
| |
| struct ksz_chip_data { |
| u16 chip_id; |
| const char *dev_name; |
| int num_vlans; |
| int num_alus; |
| int num_statics; |
| int cpu_ports; |
| int port_cnt; |
| }; |
| |
| static const struct ksz_chip_data ksz8795_switch_chips[] = { |
| { |
| .chip_id = 0x8795, |
| .dev_name = "KSZ8795", |
| .num_vlans = 4096, |
| .num_alus = 0, |
| .num_statics = 8, |
| .cpu_ports = 0x10, /* can be configured as cpu port */ |
| .port_cnt = 5, /* total cpu and user ports */ |
| }, |
| { |
| /* |
| * WARNING |
| * ======= |
| * KSZ8794 is similar to KSZ8795, except the port map |
| * contains a gap between external and CPU ports, the |
| * port map is NOT continuous. The per-port register |
| * map is shifted accordingly too, i.e. registers at |
| * offset 0x40 are NOT used on KSZ8794 and they ARE |
| * used on KSZ8795 for external port 3. |
| * external cpu |
| * KSZ8794 0,1,2 4 |
| * KSZ8795 0,1,2,3 4 |
| * KSZ8765 0,1,2,3 4 |
| */ |
| .chip_id = 0x8794, |
| .dev_name = "KSZ8794", |
| .num_vlans = 4096, |
| .num_alus = 0, |
| .num_statics = 8, |
| .cpu_ports = 0x10, /* can be configured as cpu port */ |
| .port_cnt = 4, /* total cpu and user ports */ |
| }, |
| { |
| .chip_id = 0x8765, |
| .dev_name = "KSZ8765", |
| .num_vlans = 4096, |
| .num_alus = 0, |
| .num_statics = 8, |
| .cpu_ports = 0x10, /* can be configured as cpu port */ |
| .port_cnt = 5, /* total cpu and user ports */ |
| }, |
| }; |
| |
| static int ksz8795_switch_init(struct ksz_device *dev) |
| { |
| int i; |
| |
| dev->ds->ops = &ksz8795_switch_ops; |
| |
| for (i = 0; i < ARRAY_SIZE(ksz8795_switch_chips); i++) { |
| const struct ksz_chip_data *chip = &ksz8795_switch_chips[i]; |
| |
| if (dev->chip_id == chip->chip_id) { |
| dev->name = chip->dev_name; |
| dev->num_vlans = chip->num_vlans; |
| dev->num_alus = chip->num_alus; |
| dev->num_statics = chip->num_statics; |
| dev->port_cnt = fls(chip->cpu_ports); |
| dev->cpu_port = fls(chip->cpu_ports) - 1; |
| dev->phy_port_cnt = dev->port_cnt - 1; |
| dev->cpu_ports = chip->cpu_ports; |
| dev->host_mask = chip->cpu_ports; |
| dev->port_mask = (BIT(dev->phy_port_cnt) - 1) | |
| chip->cpu_ports; |
| break; |
| } |
| } |
| |
| /* no switch found */ |
| if (!dev->cpu_ports) |
| return -ENODEV; |
| |
| dev->reg_mib_cnt = KSZ8795_COUNTER_NUM; |
| dev->mib_cnt = ARRAY_SIZE(mib_names); |
| |
| dev->ports = devm_kzalloc(dev->dev, |
| dev->port_cnt * sizeof(struct ksz_port), |
| GFP_KERNEL); |
| if (!dev->ports) |
| return -ENOMEM; |
| for (i = 0; i < dev->port_cnt; i++) { |
| mutex_init(&dev->ports[i].mib.cnt_mutex); |
| dev->ports[i].mib.counters = |
| devm_kzalloc(dev->dev, |
| sizeof(u64) * |
| (dev->mib_cnt + 1), |
| GFP_KERNEL); |
| if (!dev->ports[i].mib.counters) |
| return -ENOMEM; |
| } |
| |
| /* set the real number of ports */ |
| dev->ds->num_ports = dev->port_cnt; |
| |
| return 0; |
| } |
| |
| static void ksz8795_switch_exit(struct ksz_device *dev) |
| { |
| ksz8795_reset_switch(dev); |
| } |
| |
| static const struct ksz_dev_ops ksz8795_dev_ops = { |
| .get_port_addr = ksz8795_get_port_addr, |
| .cfg_port_member = ksz8795_cfg_port_member, |
| .flush_dyn_mac_table = ksz8795_flush_dyn_mac_table, |
| .port_setup = ksz8795_port_setup, |
| .r_phy = ksz8795_r_phy, |
| .w_phy = ksz8795_w_phy, |
| .r_dyn_mac_table = ksz8795_r_dyn_mac_table, |
| .r_sta_mac_table = ksz8795_r_sta_mac_table, |
| .w_sta_mac_table = ksz8795_w_sta_mac_table, |
| .r_mib_cnt = ksz8795_r_mib_cnt, |
| .r_mib_pkt = ksz8795_r_mib_pkt, |
| .freeze_mib = ksz8795_freeze_mib, |
| .port_init_cnt = ksz8795_port_init_cnt, |
| .shutdown = ksz8795_reset_switch, |
| .detect = ksz8795_switch_detect, |
| .init = ksz8795_switch_init, |
| .exit = ksz8795_switch_exit, |
| }; |
| |
| int ksz8795_switch_register(struct ksz_device *dev) |
| { |
| return ksz_switch_register(dev, &ksz8795_dev_ops); |
| } |
| EXPORT_SYMBOL(ksz8795_switch_register); |
| |
| MODULE_AUTHOR("Tristram Ha <Tristram.Ha@microchip.com>"); |
| MODULE_DESCRIPTION("Microchip KSZ8795 Series Switch DSA Driver"); |
| MODULE_LICENSE("GPL"); |
