linux/drivers/net/ethernet/mediatek/mtk_ppe.c

// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (C) 2020 Felix Fietkau <[email protected]> */

#include <linux/kernel.h>
#include <linux/io.h>
#include <linux/iopoll.h>
#include <linux/etherdevice.h>
#include <linux/platform_device.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
#include <net/dst_metadata.h>
#include <net/dsa.h>
#include "mtk_eth_soc.h"
#include "mtk_ppe.h"
#include "mtk_ppe_regs.h"

static DEFINE_SPINLOCK(ppe_lock);

static const struct rhashtable_params mtk_flow_l2_ht_params = …;

static void ppe_w32(struct mtk_ppe *ppe, u32 reg, u32 val)
{ … }

static u32 ppe_r32(struct mtk_ppe *ppe, u32 reg)
{ … }

static u32 ppe_m32(struct mtk_ppe *ppe, u32 reg, u32 mask, u32 set)
{ … }

static u32 ppe_set(struct mtk_ppe *ppe, u32 reg, u32 val)
{ … }

static u32 ppe_clear(struct mtk_ppe *ppe, u32 reg, u32 val)
{ … }

static u32 mtk_eth_timestamp(struct mtk_eth *eth)
{ … }

static int mtk_ppe_wait_busy(struct mtk_ppe *ppe)
{ … }

static int mtk_ppe_mib_wait_busy(struct mtk_ppe *ppe)
{ … }

static int mtk_mib_entry_read(struct mtk_ppe *ppe, u16 index, u64 *bytes, u64 *packets)
{ … }

static void mtk_ppe_cache_clear(struct mtk_ppe *ppe)
{ … }

static void mtk_ppe_cache_enable(struct mtk_ppe *ppe, bool enable)
{ … }

static u32 mtk_ppe_hash_entry(struct mtk_eth *eth, struct mtk_foe_entry *e)
{ … }

static inline struct mtk_foe_mac_info *
mtk_foe_entry_l2(struct mtk_eth *eth, struct mtk_foe_entry *entry)
{ … }

static inline u32 *
mtk_foe_entry_ib2(struct mtk_eth *eth, struct mtk_foe_entry *entry)
{ … }

int mtk_foe_entry_prepare(struct mtk_eth *eth, struct mtk_foe_entry *entry,
			  int type, int l4proto, u8 pse_port, u8 *src_mac,
			  u8 *dest_mac)
{ … }

int mtk_foe_entry_set_pse_port(struct mtk_eth *eth,
			       struct mtk_foe_entry *entry, u8 port)
{ … }

int mtk_foe_entry_set_ipv4_tuple(struct mtk_eth *eth,
				 struct mtk_foe_entry *entry, bool egress,
				 __be32 src_addr, __be16 src_port,
				 __be32 dest_addr, __be16 dest_port)
{ … }

int mtk_foe_entry_set_ipv6_tuple(struct mtk_eth *eth,
				 struct mtk_foe_entry *entry,
				 __be32 *src_addr, __be16 src_port,
				 __be32 *dest_addr, __be16 dest_port)
{ … }

int mtk_foe_entry_set_dsa(struct mtk_eth *eth, struct mtk_foe_entry *entry,
			  int port)
{ … }

int mtk_foe_entry_set_vlan(struct mtk_eth *eth, struct mtk_foe_entry *entry,
			   int vid)
{ … }

int mtk_foe_entry_set_pppoe(struct mtk_eth *eth, struct mtk_foe_entry *entry,
			    int sid)
{ … }

int mtk_foe_entry_set_wdma(struct mtk_eth *eth, struct mtk_foe_entry *entry,
			   int wdma_idx, int txq, int bss, int wcid,
			   bool amsdu_en)
{ … }

int mtk_foe_entry_set_queue(struct mtk_eth *eth, struct mtk_foe_entry *entry,
			    unsigned int queue)
{ … }

static bool
mtk_flow_entry_match(struct mtk_eth *eth, struct mtk_flow_entry *entry,
		     struct mtk_foe_entry *data)
{ … }

static void
__mtk_foe_entry_clear(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
{ … }

static int __mtk_foe_entry_idle_time(struct mtk_ppe *ppe, u32 ib1)
{ … }

static void
mtk_flow_entry_update_l2(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
{ … }

static void
mtk_flow_entry_update(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
{ … }

static void
__mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_foe_entry *entry,
		       u16 hash)
{ … }

void mtk_foe_entry_clear(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
{ … }

static int
mtk_foe_entry_commit_l2(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
{ … }

int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
{ … }

static void
mtk_foe_entry_commit_subflow(struct mtk_ppe *ppe, struct mtk_flow_entry *entry,
			     u16 hash)
{ … }

void __mtk_ppe_check_skb(struct mtk_ppe *ppe, struct sk_buff *skb, u16 hash)
{ … }

int mtk_foe_entry_idle_time(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
{ … }

int mtk_ppe_prepare_reset(struct mtk_ppe *ppe)
{ … }

struct mtk_foe_accounting *mtk_foe_entry_get_mib(struct mtk_ppe *ppe, u32 index,
						 struct mtk_foe_accounting *diff)
{ … }

struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base, int index)
{ … }

void mtk_ppe_deinit(struct mtk_eth *eth)
{ … }

static void mtk_ppe_init_foe_table(struct mtk_ppe *ppe)
{ … }

void mtk_ppe_start(struct mtk_ppe *ppe)
{ … }

int mtk_ppe_stop(struct mtk_ppe *ppe)
{ … }