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1308 lines
33 KiB
1308 lines
33 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* Microchip KSZ8795 switch driver |
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* |
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* Copyright (C) 2017 Microchip Technology Inc. |
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* Tristram Ha <[email protected]> |
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*/ |
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|
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#include <linux/delay.h> |
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#include <linux/export.h> |
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#include <linux/gpio.h> |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/platform_data/microchip-ksz.h> |
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#include <linux/phy.h> |
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#include <linux/etherdevice.h> |
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#include <linux/if_bridge.h> |
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#include <net/dsa.h> |
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#include <net/switchdev.h> |
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|
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#include "ksz_common.h" |
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#include "ksz8795_reg.h" |
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|
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static const struct { |
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char string[ETH_GSTRING_LEN]; |
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} mib_names[] = { |
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{ "rx_hi" }, |
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{ "rx_undersize" }, |
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{ "rx_fragments" }, |
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{ "rx_oversize" }, |
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{ "rx_jabbers" }, |
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{ "rx_symbol_err" }, |
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{ "rx_crc_err" }, |
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{ "rx_align_err" }, |
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{ "rx_mac_ctrl" }, |
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{ "rx_pause" }, |
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{ "rx_bcast" }, |
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{ "rx_mcast" }, |
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{ "rx_ucast" }, |
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{ "rx_64_or_less" }, |
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{ "rx_65_127" }, |
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{ "rx_128_255" }, |
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{ "rx_256_511" }, |
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{ "rx_512_1023" }, |
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{ "rx_1024_1522" }, |
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{ "rx_1523_2000" }, |
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{ "rx_2001" }, |
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{ "tx_hi" }, |
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{ "tx_late_col" }, |
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{ "tx_pause" }, |
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{ "tx_bcast" }, |
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{ "tx_mcast" }, |
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{ "tx_ucast" }, |
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{ "tx_deferred" }, |
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{ "tx_total_col" }, |
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{ "tx_exc_col" }, |
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{ "tx_single_col" }, |
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{ "tx_mult_col" }, |
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{ "rx_total" }, |
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{ "tx_total" }, |
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{ "rx_discards" }, |
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{ "tx_discards" }, |
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}; |
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|
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static void ksz_cfg(struct ksz_device *dev, u32 addr, u8 bits, bool set) |
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{ |
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regmap_update_bits(dev->regmap[0], addr, bits, set ? bits : 0); |
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} |
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|
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static void ksz_port_cfg(struct ksz_device *dev, int port, int offset, u8 bits, |
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bool set) |
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{ |
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regmap_update_bits(dev->regmap[0], PORT_CTRL_ADDR(port, offset), |
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bits, set ? bits : 0); |
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} |
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|
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static int ksz8795_reset_switch(struct ksz_device *dev) |
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{ |
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/* reset switch */ |
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ksz_write8(dev, REG_POWER_MANAGEMENT_1, |
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SW_SOFTWARE_POWER_DOWN << SW_POWER_MANAGEMENT_MODE_S); |
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ksz_write8(dev, REG_POWER_MANAGEMENT_1, 0); |
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|
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return 0; |
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} |
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static void ksz8795_set_prio_queue(struct ksz_device *dev, int port, int queue) |
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{ |
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u8 hi, lo; |
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|
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/* Number of queues can only be 1, 2, or 4. */ |
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switch (queue) { |
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case 4: |
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case 3: |
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queue = PORT_QUEUE_SPLIT_4; |
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break; |
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case 2: |
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queue = PORT_QUEUE_SPLIT_2; |
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break; |
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default: |
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queue = PORT_QUEUE_SPLIT_1; |
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} |
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ksz_pread8(dev, port, REG_PORT_CTRL_0, &lo); |
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ksz_pread8(dev, port, P_DROP_TAG_CTRL, &hi); |
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lo &= ~PORT_QUEUE_SPLIT_L; |
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if (queue & PORT_QUEUE_SPLIT_2) |
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lo |= PORT_QUEUE_SPLIT_L; |
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hi &= ~PORT_QUEUE_SPLIT_H; |
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if (queue & PORT_QUEUE_SPLIT_4) |
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hi |= PORT_QUEUE_SPLIT_H; |
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ksz_pwrite8(dev, port, REG_PORT_CTRL_0, lo); |
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ksz_pwrite8(dev, port, P_DROP_TAG_CTRL, hi); |
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|
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/* Default is port based for egress rate limit. */ |
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if (queue != PORT_QUEUE_SPLIT_1) |
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ksz_cfg(dev, REG_SW_CTRL_19, SW_OUT_RATE_LIMIT_QUEUE_BASED, |
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true); |
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} |
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static void ksz8795_r_mib_cnt(struct ksz_device *dev, int port, u16 addr, |
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u64 *cnt) |
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{ |
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u16 ctrl_addr; |
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u32 data; |
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u8 check; |
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int loop; |
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ctrl_addr = addr + dev->reg_mib_cnt * port; |
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ctrl_addr |= IND_ACC_TABLE(TABLE_MIB | TABLE_READ); |
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|
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mutex_lock(&dev->alu_mutex); |
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ksz_write16(dev, REG_IND_CTRL_0, ctrl_addr); |
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|
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/* It is almost guaranteed to always read the valid bit because of |
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* slow SPI speed. |
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*/ |
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for (loop = 2; loop > 0; loop--) { |
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ksz_read8(dev, REG_IND_MIB_CHECK, &check); |
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|
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if (check & MIB_COUNTER_VALID) { |
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ksz_read32(dev, REG_IND_DATA_LO, &data); |
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if (check & MIB_COUNTER_OVERFLOW) |
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*cnt += MIB_COUNTER_VALUE + 1; |
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*cnt += data & MIB_COUNTER_VALUE; |
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break; |
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} |
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} |
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mutex_unlock(&dev->alu_mutex); |
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} |
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static void ksz8795_r_mib_pkt(struct ksz_device *dev, int port, u16 addr, |
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u64 *dropped, u64 *cnt) |
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{ |
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u16 ctrl_addr; |
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u32 data; |
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u8 check; |
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int loop; |
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|
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addr -= dev->reg_mib_cnt; |
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ctrl_addr = (KS_MIB_TOTAL_RX_1 - KS_MIB_TOTAL_RX_0) * port; |
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ctrl_addr += addr + KS_MIB_TOTAL_RX_0; |
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ctrl_addr |= IND_ACC_TABLE(TABLE_MIB | TABLE_READ); |
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|
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mutex_lock(&dev->alu_mutex); |
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ksz_write16(dev, REG_IND_CTRL_0, ctrl_addr); |
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|
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/* It is almost guaranteed to always read the valid bit because of |
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* slow SPI speed. |
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*/ |
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for (loop = 2; loop > 0; loop--) { |
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ksz_read8(dev, REG_IND_MIB_CHECK, &check); |
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|
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if (check & MIB_COUNTER_VALID) { |
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ksz_read32(dev, REG_IND_DATA_LO, &data); |
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if (addr < 2) { |
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u64 total; |
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total = check & MIB_TOTAL_BYTES_H; |
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total <<= 32; |
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*cnt += total; |
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*cnt += data; |
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if (check & MIB_COUNTER_OVERFLOW) { |
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total = MIB_TOTAL_BYTES_H + 1; |
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total <<= 32; |
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*cnt += total; |
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} |
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} else { |
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if (check & MIB_COUNTER_OVERFLOW) |
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*cnt += MIB_PACKET_DROPPED + 1; |
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*cnt += data & MIB_PACKET_DROPPED; |
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} |
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break; |
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} |
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} |
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mutex_unlock(&dev->alu_mutex); |
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} |
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static void ksz8795_freeze_mib(struct ksz_device *dev, int port, bool freeze) |
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{ |
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/* enable the port for flush/freeze function */ |
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if (freeze) |
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ksz_cfg(dev, REG_SW_CTRL_6, BIT(port), true); |
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ksz_cfg(dev, REG_SW_CTRL_6, SW_MIB_COUNTER_FREEZE, freeze); |
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|
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/* disable the port after freeze is done */ |
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if (!freeze) |
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ksz_cfg(dev, REG_SW_CTRL_6, BIT(port), false); |
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} |
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static void ksz8795_port_init_cnt(struct ksz_device *dev, int port) |
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{ |
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struct ksz_port_mib *mib = &dev->ports[port].mib; |
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|
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/* flush all enabled port MIB counters */ |
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ksz_cfg(dev, REG_SW_CTRL_6, BIT(port), true); |
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ksz_cfg(dev, REG_SW_CTRL_6, SW_MIB_COUNTER_FLUSH, true); |
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ksz_cfg(dev, REG_SW_CTRL_6, BIT(port), false); |
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mib->cnt_ptr = 0; |
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|
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/* Some ports may not have MIB counters before SWITCH_COUNTER_NUM. */ |
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while (mib->cnt_ptr < dev->reg_mib_cnt) { |
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dev->dev_ops->r_mib_cnt(dev, port, mib->cnt_ptr, |
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&mib->counters[mib->cnt_ptr]); |
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++mib->cnt_ptr; |
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} |
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|
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/* Some ports may not have MIB counters after SWITCH_COUNTER_NUM. */ |
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while (mib->cnt_ptr < dev->mib_cnt) { |
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dev->dev_ops->r_mib_pkt(dev, port, mib->cnt_ptr, |
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NULL, &mib->counters[mib->cnt_ptr]); |
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++mib->cnt_ptr; |
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} |
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mib->cnt_ptr = 0; |
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memset(mib->counters, 0, dev->mib_cnt * sizeof(u64)); |
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} |
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|
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static void ksz8795_r_table(struct ksz_device *dev, int table, u16 addr, |
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u64 *data) |
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{ |
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u16 ctrl_addr; |
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ctrl_addr = IND_ACC_TABLE(table | TABLE_READ) | addr; |
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mutex_lock(&dev->alu_mutex); |
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ksz_write16(dev, REG_IND_CTRL_0, ctrl_addr); |
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ksz_read64(dev, REG_IND_DATA_HI, data); |
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mutex_unlock(&dev->alu_mutex); |
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} |
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static void ksz8795_w_table(struct ksz_device *dev, int table, u16 addr, |
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u64 data) |
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{ |
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u16 ctrl_addr; |
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ctrl_addr = IND_ACC_TABLE(table) | addr; |
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mutex_lock(&dev->alu_mutex); |
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ksz_write64(dev, REG_IND_DATA_HI, data); |
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ksz_write16(dev, REG_IND_CTRL_0, ctrl_addr); |
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mutex_unlock(&dev->alu_mutex); |
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} |
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static int ksz8795_valid_dyn_entry(struct ksz_device *dev, u8 *data) |
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{ |
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int timeout = 100; |
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do { |
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ksz_read8(dev, REG_IND_DATA_CHECK, data); |
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timeout--; |
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} while ((*data & DYNAMIC_MAC_TABLE_NOT_READY) && timeout); |
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|
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/* Entry is not ready for accessing. */ |
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if (*data & DYNAMIC_MAC_TABLE_NOT_READY) { |
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return -EAGAIN; |
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/* Entry is ready for accessing. */ |
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} else { |
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ksz_read8(dev, REG_IND_DATA_8, data); |
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/* There is no valid entry in the table. */ |
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if (*data & DYNAMIC_MAC_TABLE_MAC_EMPTY) |
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return -ENXIO; |
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} |
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return 0; |
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} |
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static int ksz8795_r_dyn_mac_table(struct ksz_device *dev, u16 addr, |
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u8 *mac_addr, u8 *fid, u8 *src_port, |
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u8 *timestamp, u16 *entries) |
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{ |
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u32 data_hi, data_lo; |
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u16 ctrl_addr; |
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u8 data; |
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int rc; |
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ctrl_addr = IND_ACC_TABLE(TABLE_DYNAMIC_MAC | TABLE_READ) | addr; |
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mutex_lock(&dev->alu_mutex); |
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ksz_write16(dev, REG_IND_CTRL_0, ctrl_addr); |
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rc = ksz8795_valid_dyn_entry(dev, &data); |
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if (rc == -EAGAIN) { |
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if (addr == 0) |
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*entries = 0; |
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} else if (rc == -ENXIO) { |
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*entries = 0; |
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/* At least one valid entry in the table. */ |
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} else { |
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u64 buf = 0; |
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int cnt; |
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ksz_read64(dev, REG_IND_DATA_HI, &buf); |
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data_hi = (u32)(buf >> 32); |
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data_lo = (u32)buf; |
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|
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/* Check out how many valid entry in the table. */ |
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cnt = data & DYNAMIC_MAC_TABLE_ENTRIES_H; |
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cnt <<= DYNAMIC_MAC_ENTRIES_H_S; |
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cnt |= (data_hi & DYNAMIC_MAC_TABLE_ENTRIES) >> |
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DYNAMIC_MAC_ENTRIES_S; |
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*entries = cnt + 1; |
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*fid = (data_hi & DYNAMIC_MAC_TABLE_FID) >> |
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DYNAMIC_MAC_FID_S; |
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*src_port = (data_hi & DYNAMIC_MAC_TABLE_SRC_PORT) >> |
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DYNAMIC_MAC_SRC_PORT_S; |
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*timestamp = (data_hi & DYNAMIC_MAC_TABLE_TIMESTAMP) >> |
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DYNAMIC_MAC_TIMESTAMP_S; |
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mac_addr[5] = (u8)data_lo; |
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mac_addr[4] = (u8)(data_lo >> 8); |
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mac_addr[3] = (u8)(data_lo >> 16); |
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mac_addr[2] = (u8)(data_lo >> 24); |
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|
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mac_addr[1] = (u8)data_hi; |
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mac_addr[0] = (u8)(data_hi >> 8); |
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rc = 0; |
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} |
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mutex_unlock(&dev->alu_mutex); |
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return rc; |
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} |
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static int ksz8795_r_sta_mac_table(struct ksz_device *dev, u16 addr, |
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struct alu_struct *alu) |
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{ |
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u32 data_hi, data_lo; |
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u64 data; |
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|
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ksz8795_r_table(dev, TABLE_STATIC_MAC, addr, &data); |
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data_hi = data >> 32; |
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data_lo = (u32)data; |
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if (data_hi & (STATIC_MAC_TABLE_VALID | STATIC_MAC_TABLE_OVERRIDE)) { |
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alu->mac[5] = (u8)data_lo; |
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alu->mac[4] = (u8)(data_lo >> 8); |
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alu->mac[3] = (u8)(data_lo >> 16); |
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alu->mac[2] = (u8)(data_lo >> 24); |
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alu->mac[1] = (u8)data_hi; |
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alu->mac[0] = (u8)(data_hi >> 8); |
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alu->port_forward = (data_hi & STATIC_MAC_TABLE_FWD_PORTS) >> |
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STATIC_MAC_FWD_PORTS_S; |
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alu->is_override = |
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(data_hi & STATIC_MAC_TABLE_OVERRIDE) ? 1 : 0; |
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data_hi >>= 1; |
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alu->is_use_fid = (data_hi & STATIC_MAC_TABLE_USE_FID) ? 1 : 0; |
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alu->fid = (data_hi & STATIC_MAC_TABLE_FID) >> |
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STATIC_MAC_FID_S; |
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return 0; |
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} |
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return -ENXIO; |
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} |
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|
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static void ksz8795_w_sta_mac_table(struct ksz_device *dev, u16 addr, |
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struct alu_struct *alu) |
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{ |
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u32 data_hi, data_lo; |
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u64 data; |
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|
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data_lo = ((u32)alu->mac[2] << 24) | |
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((u32)alu->mac[3] << 16) | |
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((u32)alu->mac[4] << 8) | alu->mac[5]; |
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data_hi = ((u32)alu->mac[0] << 8) | alu->mac[1]; |
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data_hi |= (u32)alu->port_forward << STATIC_MAC_FWD_PORTS_S; |
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|
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if (alu->is_override) |
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data_hi |= STATIC_MAC_TABLE_OVERRIDE; |
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if (alu->is_use_fid) { |
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data_hi |= STATIC_MAC_TABLE_USE_FID; |
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data_hi |= (u32)alu->fid << STATIC_MAC_FID_S; |
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} |
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if (alu->is_static) |
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data_hi |= STATIC_MAC_TABLE_VALID; |
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else |
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data_hi &= ~STATIC_MAC_TABLE_OVERRIDE; |
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|
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data = (u64)data_hi << 32 | data_lo; |
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ksz8795_w_table(dev, TABLE_STATIC_MAC, addr, data); |
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} |
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|
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static void ksz8795_from_vlan(u16 vlan, u8 *fid, u8 *member, u8 *valid) |
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{ |
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*fid = vlan & VLAN_TABLE_FID; |
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*member = (vlan & VLAN_TABLE_MEMBERSHIP) >> VLAN_TABLE_MEMBERSHIP_S; |
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*valid = !!(vlan & VLAN_TABLE_VALID); |
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} |
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|
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static void ksz8795_to_vlan(u8 fid, u8 member, u8 valid, u16 *vlan) |
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{ |
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*vlan = fid; |
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*vlan |= (u16)member << VLAN_TABLE_MEMBERSHIP_S; |
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if (valid) |
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*vlan |= VLAN_TABLE_VALID; |
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} |
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|
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static void ksz8795_r_vlan_entries(struct ksz_device *dev, u16 addr) |
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{ |
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u64 data; |
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int i; |
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|
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ksz8795_r_table(dev, TABLE_VLAN, addr, &data); |
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addr *= dev->phy_port_cnt; |
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for (i = 0; i < dev->phy_port_cnt; i++) { |
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dev->vlan_cache[addr + i].table[0] = (u16)data; |
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data >>= VLAN_TABLE_S; |
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} |
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} |
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|
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static void ksz8795_r_vlan_table(struct ksz_device *dev, u16 vid, u16 *vlan) |
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{ |
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int index; |
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u16 *data; |
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u16 addr; |
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u64 buf; |
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|
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data = (u16 *)&buf; |
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addr = vid / dev->phy_port_cnt; |
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index = vid & 3; |
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ksz8795_r_table(dev, TABLE_VLAN, addr, &buf); |
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*vlan = data[index]; |
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} |
|
|
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static void ksz8795_w_vlan_table(struct ksz_device *dev, u16 vid, u16 vlan) |
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{ |
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int index; |
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u16 *data; |
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u16 addr; |
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u64 buf; |
|
|
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data = (u16 *)&buf; |
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addr = vid / dev->phy_port_cnt; |
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index = vid & 3; |
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ksz8795_r_table(dev, TABLE_VLAN, addr, &buf); |
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data[index] = vlan; |
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dev->vlan_cache[vid].table[0] = vlan; |
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ksz8795_w_table(dev, TABLE_VLAN, addr, buf); |
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} |
|
|
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static void ksz8795_r_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 *val) |
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{ |
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u8 restart, speed, ctrl, link; |
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int processed = true; |
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u16 data = 0; |
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u8 p = phy; |
|
|
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switch (reg) { |
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case PHY_REG_CTRL: |
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ksz_pread8(dev, p, P_NEG_RESTART_CTRL, &restart); |
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ksz_pread8(dev, p, P_SPEED_STATUS, &speed); |
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ksz_pread8(dev, p, P_FORCE_CTRL, &ctrl); |
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if (restart & PORT_PHY_LOOPBACK) |
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data |= PHY_LOOPBACK; |
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if (ctrl & PORT_FORCE_100_MBIT) |
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data |= PHY_SPEED_100MBIT; |
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if (!(ctrl & PORT_AUTO_NEG_DISABLE)) |
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data |= PHY_AUTO_NEG_ENABLE; |
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if (restart & PORT_POWER_DOWN) |
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data |= PHY_POWER_DOWN; |
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if (restart & PORT_AUTO_NEG_RESTART) |
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data |= PHY_AUTO_NEG_RESTART; |
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if (ctrl & PORT_FORCE_FULL_DUPLEX) |
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data |= PHY_FULL_DUPLEX; |
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if (speed & PORT_HP_MDIX) |
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data |= PHY_HP_MDIX; |
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if (restart & PORT_FORCE_MDIX) |
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data |= PHY_FORCE_MDIX; |
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if (restart & PORT_AUTO_MDIX_DISABLE) |
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data |= PHY_AUTO_MDIX_DISABLE; |
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if (restart & PORT_TX_DISABLE) |
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data |= PHY_TRANSMIT_DISABLE; |
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if (restart & PORT_LED_OFF) |
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data |= PHY_LED_DISABLE; |
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break; |
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case PHY_REG_STATUS: |
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ksz_pread8(dev, p, P_LINK_STATUS, &link); |
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data = PHY_100BTX_FD_CAPABLE | |
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PHY_100BTX_CAPABLE | |
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PHY_10BT_FD_CAPABLE | |
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PHY_10BT_CAPABLE | |
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PHY_AUTO_NEG_CAPABLE; |
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if (link & PORT_AUTO_NEG_COMPLETE) |
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data |= PHY_AUTO_NEG_ACKNOWLEDGE; |
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if (link & PORT_STAT_LINK_GOOD) |
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data |= PHY_LINK_STATUS; |
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break; |
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case PHY_REG_ID_1: |
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data = KSZ8795_ID_HI; |
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break; |
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case PHY_REG_ID_2: |
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data = KSZ8795_ID_LO; |
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break; |
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case PHY_REG_AUTO_NEGOTIATION: |
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ksz_pread8(dev, p, P_LOCAL_CTRL, &ctrl); |
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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) |
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{ |
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struct ksz_device *dev = ds->priv; |
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struct alu_struct alu; |
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int i, ret = 0; |
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|
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dev->vlan_cache = devm_kcalloc(dev->dev, sizeof(struct vlan_table), |
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dev->num_vlans, GFP_KERNEL); |
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if (!dev->vlan_cache) |
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return -ENOMEM; |
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|
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ret = ksz8795_reset_switch(dev); |
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if (ret) { |
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dev_err(ds->dev, "failed to reset switch\n"); |
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return ret; |
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} |
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|
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ksz_cfg(dev, S_REPLACE_VID_CTRL, SW_FLOW_CTRL, true); |
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|
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/* Enable automatic fast aging when link changed detected. */ |
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ksz_cfg(dev, S_LINK_AGING_CTRL, SW_LINK_AUTO_AGING, true); |
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|
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/* Enable aggressive back off algorithm in half duplex mode. */ |
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regmap_update_bits(dev->regmap[0], REG_SW_CTRL_1, |
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SW_AGGR_BACKOFF, SW_AGGR_BACKOFF); |
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|
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/* |
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* Make sure unicast VLAN boundary is set as default and |
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* enable no excessive collision drop. |
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*/ |
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regmap_update_bits(dev->regmap[0], REG_SW_CTRL_2, |
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UNICAST_VLAN_BOUNDARY | NO_EXC_COLLISION_DROP, |
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UNICAST_VLAN_BOUNDARY | NO_EXC_COLLISION_DROP); |
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|
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ksz8795_config_cpu_port(ds); |
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|
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ksz_cfg(dev, REG_SW_CTRL_2, MULTICAST_STORM_DISABLE, true); |
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|
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ksz_cfg(dev, S_REPLACE_VID_CTRL, SW_REPLACE_VID, false); |
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|
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ksz_cfg(dev, S_MIRROR_CTRL, SW_MIRROR_RX_TX, false); |
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|
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/* set broadcast storm protection 10% rate */ |
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regmap_update_bits(dev->regmap[1], S_REPLACE_VID_CTRL, |
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BROADCAST_STORM_RATE, |
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(BROADCAST_STORM_VALUE * |
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BROADCAST_STORM_PROT_RATE) / 100); |
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|
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for (i = 0; i < (dev->num_vlans / 4); i++) |
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ksz8795_r_vlan_entries(dev, i); |
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|
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/* Setup STP address for STP operation. */ |
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memset(&alu, 0, sizeof(alu)); |
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ether_addr_copy(alu.mac, eth_stp_addr); |
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alu.is_static = true; |
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alu.is_override = true; |
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alu.port_forward = dev->host_mask; |
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|
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ksz8795_w_sta_mac_table(dev, 0, &alu); |
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|
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ksz_init_mib_timer(dev); |
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|
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ds->configure_vlan_while_not_filtering = false; |
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|
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return 0; |
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} |
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|
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static const struct dsa_switch_ops ksz8795_switch_ops = { |
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.get_tag_protocol = ksz8795_get_tag_protocol, |
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.setup = ksz8795_setup, |
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.phy_read = ksz_phy_read16, |
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.phy_write = ksz_phy_write16, |
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.phylink_mac_link_down = ksz_mac_link_down, |
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.port_enable = ksz_enable_port, |
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.get_strings = ksz8795_get_strings, |
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.get_ethtool_stats = ksz_get_ethtool_stats, |
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.get_sset_count = ksz_sset_count, |
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.port_bridge_join = ksz_port_bridge_join, |
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.port_bridge_leave = ksz_port_bridge_leave, |
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.port_stp_state_set = ksz8795_port_stp_state_set, |
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.port_fast_age = ksz_port_fast_age, |
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.port_vlan_filtering = ksz8795_port_vlan_filtering, |
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.port_vlan_add = ksz8795_port_vlan_add, |
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.port_vlan_del = ksz8795_port_vlan_del, |
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.port_fdb_dump = ksz_port_fdb_dump, |
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.port_mdb_add = ksz_port_mdb_add, |
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.port_mdb_del = ksz_port_mdb_del, |
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.port_mirror_add = ksz8795_port_mirror_add, |
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.port_mirror_del = ksz8795_port_mirror_del, |
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}; |
|
|
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static u32 ksz8795_get_port_addr(int port, int offset) |
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{ |
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return PORT_CTRL_ADDR(port, offset); |
|
} |
|
|
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static int ksz8795_switch_detect(struct ksz_device *dev) |
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{ |
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u8 id1, id2; |
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u16 id16; |
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int ret; |
|
|
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/* read chip id */ |
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ret = ksz_read16(dev, REG_CHIP_ID0, &id16); |
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if (ret) |
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return ret; |
|
|
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id1 = id16 >> 8; |
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id2 = id16 & SW_CHIP_ID_M; |
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if (id1 != FAMILY_ID || |
|
(id2 != CHIP_ID_94 && id2 != CHIP_ID_95)) |
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return -ENODEV; |
|
|
|
if (id2 == CHIP_ID_95) { |
|
u8 val; |
|
|
|
id2 = 0x95; |
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ksz_read8(dev, REG_PORT_1_STATUS_0, &val); |
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if (val & PORT_FIBER_MODE) |
|
id2 = 0x65; |
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} else if (id2 == CHIP_ID_94) { |
|
id2 = 0x94; |
|
} |
|
id16 &= ~0xff; |
|
id16 |= id2; |
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dev->chip_id = id16; |
|
|
|
return 0; |
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} |
|
|
|
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; |
|
}; |
|
|
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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 <[email protected]>"); |
|
MODULE_DESCRIPTION("Microchip KSZ8795 Series Switch DSA Driver"); |
|
MODULE_LICENSE("GPL");
|
|
|