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/*
* drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_actions.c
* Copyright (c) 2017 Mellanox Technologies. All rights reserved.
* Copyright (c) 2017 Jiri Pirko <jiri@mellanox.com>
* Copyright (c) 2017 Yotam Gigi <yotamg@mellanox.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the names of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "spectrum_acl_flex_actions.h"
#include "core_acl_flex_actions.h"
#define MLXSW_SP_KVDL_ACT_EXT_SIZE 1
static int mlxsw_sp_act_kvdl_set_add(void *priv, u32 *p_kvdl_index,
char *enc_actions, bool is_first)
{
struct mlxsw_sp *mlxsw_sp = priv;
char pefa_pl[MLXSW_REG_PEFA_LEN];
u32 kvdl_index;
int err;
/* The first action set of a TCAM entry is stored directly in TCAM,
* not KVD linear area.
*/
if (is_first)
return 0;
err = mlxsw_sp_kvdl_alloc(mlxsw_sp, MLXSW_SP_KVDL_ACT_EXT_SIZE,
&kvdl_index);
if (err)
return err;
mlxsw_reg_pefa_pack(pefa_pl, kvdl_index, enc_actions);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pefa), pefa_pl);
if (err)
goto err_pefa_write;
*p_kvdl_index = kvdl_index;
return 0;
err_pefa_write:
mlxsw_sp_kvdl_free(mlxsw_sp, kvdl_index);
return err;
}
static void mlxsw_sp_act_kvdl_set_del(void *priv, u32 kvdl_index,
bool is_first)
{
struct mlxsw_sp *mlxsw_sp = priv;
if (is_first)
return;
mlxsw_sp_kvdl_free(mlxsw_sp, kvdl_index);
}
static int mlxsw_sp_act_kvdl_fwd_entry_add(void *priv, u32 *p_kvdl_index,
u8 local_port)
{
struct mlxsw_sp *mlxsw_sp = priv;
char ppbs_pl[MLXSW_REG_PPBS_LEN];
u32 kvdl_index;
int err;
err = mlxsw_sp_kvdl_alloc(mlxsw_sp, 1, &kvdl_index);
if (err)
return err;
mlxsw_reg_ppbs_pack(ppbs_pl, kvdl_index, local_port);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppbs), ppbs_pl);
if (err)
goto err_ppbs_write;
*p_kvdl_index = kvdl_index;
return 0;
err_ppbs_write:
mlxsw_sp_kvdl_free(mlxsw_sp, kvdl_index);
return err;
}
static void mlxsw_sp_act_kvdl_fwd_entry_del(void *priv, u32 kvdl_index)
{
struct mlxsw_sp *mlxsw_sp = priv;
mlxsw_sp_kvdl_free(mlxsw_sp, kvdl_index);
}
static const struct mlxsw_afa_ops mlxsw_sp_act_afa_ops = {
.kvdl_set_add = mlxsw_sp_act_kvdl_set_add,
.kvdl_set_del = mlxsw_sp_act_kvdl_set_del,
.kvdl_fwd_entry_add = mlxsw_sp_act_kvdl_fwd_entry_add,
.kvdl_fwd_entry_del = mlxsw_sp_act_kvdl_fwd_entry_del,
};
int mlxsw_sp_afa_init(struct mlxsw_sp *mlxsw_sp)
{
mlxsw_sp->afa = mlxsw_afa_create(MLXSW_CORE_RES_GET(mlxsw_sp->core,
ACL_ACTIONS_PER_SET),
&mlxsw_sp_act_afa_ops, mlxsw_sp);
return PTR_ERR_OR_ZERO(mlxsw_sp->afa);
}
void mlxsw_sp_afa_fini(struct mlxsw_sp *mlxsw_sp)
{
mlxsw_afa_destroy(mlxsw_sp->afa);
}
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