linux/drivers/net/ethernet/marvell/prestera/prestera_counter.c

// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/* Copyright (c) 2021 Marvell International Ltd. All rights reserved */

#include "prestera.h"
#include "prestera_hw.h"
#include "prestera_acl.h"
#include "prestera_counter.h"

#define COUNTER_POLL_TIME …
#define COUNTER_RESCHED_TIME …
#define COUNTER_BULK_SIZE …

struct prestera_counter { … };

struct prestera_counter_block { … };

enum { … };

static bool
prestera_counter_is_ready(struct prestera_counter_block *block, u32 id)
{ … }

static void prestera_counter_lock(struct prestera_counter *counter)
{ … }

static void prestera_counter_unlock(struct prestera_counter *counter)
{ … }

static void prestera_counter_block_lock(struct prestera_counter_block *block)
{ … }

static void prestera_counter_block_unlock(struct prestera_counter_block *block)
{ … }

static bool prestera_counter_block_incref(struct prestera_counter_block *block)
{ … }

static bool prestera_counter_block_decref(struct prestera_counter_block *block)
{ … }

/* must be called with prestera_counter_block_lock() */
static void prestera_counter_stats_clear(struct prestera_counter_block *block,
					 u32 counter_id)
{ … }

static struct prestera_counter_block *
prestera_counter_block_lookup_not_full(struct prestera_counter *counter,
				       u32 client)
{ … }

static int prestera_counter_block_list_add(struct prestera_counter *counter,
					   struct prestera_counter_block *block)
{ … }

static struct prestera_counter_block *
prestera_counter_block_get(struct prestera_counter *counter, u32 client)
{ … }

static void prestera_counter_block_put(struct prestera_counter *counter,
				       struct prestera_counter_block *block)
{ … }

static int prestera_counter_get_vacant(struct prestera_counter_block *block,
				       u32 *id)
{ … }

int prestera_counter_get(struct prestera_counter *counter, u32 client,
			 struct prestera_counter_block **bl, u32 *counter_id)
{ … }

void prestera_counter_put(struct prestera_counter *counter,
			  struct prestera_counter_block *block, u32 counter_id)
{ … }

static u32 prestera_counter_block_idx_next(struct prestera_counter *counter,
					   u32 curr_idx)
{ … }

static struct prestera_counter_block *
prestera_counter_block_get_by_idx(struct prestera_counter *counter, u32 idx)
{ … }

static void prestera_counter_stats_work(struct work_struct *work)
{ … }

/* Can be executed without rtnl_lock().
 * So pay attention when something changing.
 */
int prestera_counter_stats_get(struct prestera_counter *counter,
			       struct prestera_counter_block *block,
			       u32 counter_id, u64 *packets, u64 *bytes)
{ … }

int prestera_counter_init(struct prestera_switch *sw)
{ … }

void prestera_counter_fini(struct prestera_switch *sw)
{ … }