linux/drivers/net/ethernet/chelsio/cxgb4/smt.c

/*
 * This file is part of the Chelsio T4/T5/T6 Ethernet driver for Linux.
 *
 * Copyright (c) 2017 Chelsio Communications, Inc. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include "cxgb4.h"
#include "smt.h"
#include "t4_msg.h"
#include "t4fw_api.h"
#include "t4_regs.h"
#include "t4_values.h"

struct smt_data *t4_init_smt(void)
{ … }

static struct smt_entry *find_or_alloc_smte(struct smt_data *s, u8 *smac)
{ … }

static void t4_smte_free(struct smt_entry *e)
{ … }

/**
 * cxgb4_smt_release - Release SMT entry
 * @e: smt entry to release
 *
 * Releases ref count and frees up an smt entry from SMT table
 */
void cxgb4_smt_release(struct smt_entry *e)
{ … }
EXPORT_SYMBOL(…);

void do_smt_write_rpl(struct adapter *adap, const struct cpl_smt_write_rpl *rpl)
{ … }

static int write_smt_entry(struct adapter *adapter, struct smt_entry *e)
{ … }

static struct smt_entry *t4_smt_alloc_switching(struct adapter *adap, u16 pfvf,
						u8 *smac)
{ … }

/**
 * cxgb4_smt_alloc_switching - Allocates an SMT entry for switch filters.
 * @dev: net_device pointer
 * @smac: MAC address to add to SMT
 * Returns pointer to the SMT entry created
 *
 * Allocates an SMT entry to be used by switching rule of a filter.
 */
struct smt_entry *cxgb4_smt_alloc_switching(struct net_device *dev, u8 *smac)
{ … }
EXPORT_SYMBOL(…);