path: root/drivers/net/dsa/microchip/ksz_common.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Microchip switch driver main logic
 *
 * Copyright (C) 2017-2019 Microchip Technology Inc.
 */

#include <linux/delay.h>
#include <linux/export.h>
#include <linux/gpio/consumer.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 <linux/of_device.h>
#include <linux/of_net.h>
#include <net/dsa.h>
#include <net/switchdev.h>

#include "ksz_common.h"

#define MIB_COUNTER_NUM 0x20

struct ksz_stats_raw {
	u64 rx_hi;
	u64 rx_undersize;
	u64 rx_fragments;
	u64 rx_oversize;
	u64 rx_jabbers;
	u64 rx_symbol_err;
	u64 rx_crc_err;
	u64 rx_align_err;
	u64 rx_mac_ctrl;
	u64 rx_pause;
	u64 rx_bcast;
	u64 rx_mcast;
	u64 rx_ucast;
	u64 rx_64_or_less;
	u64 rx_65_127;
	u64 rx_128_255;
	u64 rx_256_511;
	u64 rx_512_1023;
	u64 rx_1024_1522;
	u64 rx_1523_2000;
	u64 rx_2001;
	u64 tx_hi;
	u64 tx_late_col;
	u64 tx_pause;
	u64 tx_bcast;
	u64 tx_mcast;
	u64 tx_ucast;
	u64 tx_deferred;
	u64 tx_total_col;
	u64 tx_exc_col;
	u64 tx_single_col;
	u64 tx_mult_col;
	u64 rx_total;
	u64 tx_total;
	u64 rx_discards;
	u64 tx_discards;
};

static const struct ksz_mib_names ksz88xx_mib_names[] = {
	{ 0x00, "rx" },
	{ 0x01, "rx_hi" },
	{ 0x02, "rx_undersize" },
	{ 0x03, "rx_fragments" },
	{ 0x04, "rx_oversize" },
	{ 0x05, "rx_jabbers" },
	{ 0x06, "rx_symbol_err" },
	{ 0x07, "rx_crc_err" },
	{ 0x08, "rx_align_err" },
	{ 0x09, "rx_mac_ctrl" },
	{ 0x0a, "rx_pause" },
	{ 0x0b, "rx_bcast" },
	{ 0x0c, "rx_mcast" },
	{ 0x0d, "rx_ucast" },
	{ 0x0e, "rx_64_or_less" },
	{ 0x0f, "rx_65_127" },
	{ 0x10, "rx_128_255" },
	{ 0x11, "rx_256_511" },
	{ 0x12, "rx_512_1023" },
	{ 0x13, "rx_1024_1522" },
	{ 0x14, "tx" },
	{ 0x15, "tx_hi" },
	{ 0x16, "tx_late_col" },
	{ 0x17, "tx_pause" },
	{ 0x18, "tx_bcast" },
	{ 0x19, "tx_mcast" },
	{ 0x1a, "tx_ucast" },
	{ 0x1b, "tx_deferred" },
	{ 0x1c, "tx_total_col" },
	{ 0x1d, "tx_exc_col" },
	{ 0x1e, "tx_single_col" },
	{ 0x1f, "tx_mult_col" },
	{ 0x100, "rx_discards" },
	{ 0x101, "tx_discards" },
};

static const struct ksz_mib_names ksz9477_mib_names[] = {
	{ 0x00, "rx_hi" },
	{ 0x01, "rx_undersize" },
	{ 0x02, "rx_fragments" },
	{ 0x03, "rx_oversize" },
	{ 0x04, "rx_jabbers" },
	{ 0x05, "rx_symbol_err" },
	{ 0x06, "rx_crc_err" },
	{ 0x07, "rx_align_err" },
	{ 0x08, "rx_mac_ctrl" },
	{ 0x09, "rx_pause" },
	{ 0x0A, "rx_bcast" },
	{ 0x0B, "rx_mcast" },
	{ 0x0C, "rx_ucast" },
	{ 0x0D, "rx_64_or_less" },
	{ 0x0E, "rx_65_127" },
	{ 0x0F, "rx_128_255" },
	{ 0x10, "rx_256_511" },
	{ 0x11, "rx_512_1023" },
	{ 0x12, "rx_1024_1522" },
	{ 0x13, "rx_1523_2000" },
	{ 0x14, "rx_2001" },
	{ 0x15, "tx_hi" },
	{ 0x16, "tx_late_col" },
	{ 0x17, "tx_pause" },
	{ 0x18, "tx_bcast" },
	{ 0x19, "tx_mcast" },
	{ 0x1A, "tx_ucast" },
	{ 0x1B, "tx_deferred" },
	{ 0x1C, "tx_total_col" },
	{ 0x1D, "tx_exc_col" },
	{ 0x1E, "tx_single_col" },
	{ 0x1F, "tx_mult_col" },
	{ 0x80, "rx_total" },
	{ 0x81, "tx_total" },
	{ 0x82, "rx_discards" },
	{ 0x83, "tx_discards" },
};

const struct ksz_chip_data ksz_switch_chips[] = {
	[KSZ8795] = {
		.chip_id = KSZ8795_CHIP_ID,
		.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 */
		.ksz87xx_eee_link_erratum = true,
		.mib_names = ksz9477_mib_names,
		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
		.reg_mib_cnt =