/*
 * Copyright (c) 2019 AVM GmbH <info@avm.de>.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
#include <linux/kernel.h>
#include <linux/kconfig.h>
#include <avm/pa/avm_pa.h>

/* types to be completed by backend */
enum hwpa_backend_rv;

/* implementations required by backend */
enum hwpa_backend_rv hwpa_backend_add_session(const struct avm_pa_session *s,
					      unsigned long *handle_out);
enum hwpa_backend_rv hwpa_backend_rem_session(unsigned long handle);
enum hwpa_backend_rv hwpa_backend_stats(unsigned long handle,
                                        struct avm_pa_session_stats *stats);
enum hwpa_backend_rv hwpa_backend_init(void);
void hwpa_backend_exit(void);

#include "hwpa_nss.h"

/* valid match_info defaults */
#ifndef HWPA_VALID_L2
#define HWPA_VALID_L2                                                          \
	{ { .type = AVM_PA_NUM_MATCH_TYPES } },                                \
                                                                               \
	{ { .type = AVM_PA_ETH }, { .type = AVM_PA_NUM_MATCH_TYPES } },        \
                                                                               \
	{ { .type = AVM_PA_ETH },                                              \
	  { .type = AVM_PA_VLAN },                                             \
	  { .type = AVM_PA_NUM_MATCH_TYPES } },                                \
                                                                               \
	{ { .type = AVM_PA_ETH },                                              \
	  { .type = AVM_PA_PPPOE },                                            \
	  { .type = AVM_PA_PPP },                                              \
	  { .type = AVM_PA_NUM_MATCH_TYPES } },                                \
                                                                               \
	{ { .type = AVM_PA_ETH },                                              \
	  { .type = AVM_PA_VLAN },                                             \
	  { .type = AVM_PA_PPPOE },                                            \
	  { .type = AVM_PA_PPP },                                              \
	  { .type = AVM_PA_NUM_MATCH_TYPES } },
#endif
#ifndef HWPA_VALID_L3
#define HWPA_VALID_L3                                                          \
	{ { .type = AVM_PA_IPV4 },                                             \
	  { .type = AVM_PA_PORTS },                                            \
	  { .type = AVM_PA_NUM_MATCH_TYPES } },                                \
                                                                               \
	{ { .type = AVM_PA_IPV6 },                                             \
	  { .type = AVM_PA_PORTS },                                            \
	  { .type = AVM_PA_NUM_MATCH_TYPES } },
#endif
#ifndef HWPA_VALID_L3_L2ENCAP
#define HWPA_VALID_L3_L2ENCAP                                                  \
	{ { .type = AVM_PA_IPV4 },                                             \
	  { .type = AVM_PA_L2TP },                                             \
	  { .type = AVM_PA_NUM_MATCH_TYPES } },
#endif
#ifndef HWPA_VALID_L3_L3ENCAP
#define HWPA_VALID_L3_L3ENCAP                                                  \
	/* dslite */                                                           \
	{ { .type = AVM_PA_IPV6 }, { .type = AVM_PA_NUM_MATCH_TYPES } },
#endif