drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_actions.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_actions.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_actions.c
Extension
.c
Size
9028 bytes
Lines
319
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/* Copyright (c) 2017-2018 Mellanox Technologies. All rights reserved */

#include "spectrum_acl_flex_actions.h"
#include "core_acl_flex_actions.h"
#include "spectrum_span.h"

static int mlxsw_sp_act_kvdl_set_add(void *priv, u32 *p_kvdl_index,
				     char *enc_actions, bool is_first, bool ca)
{
	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_ENTRY_TYPE_ACTSET,
				  1, &kvdl_index);
	if (err)
		return err;
	mlxsw_reg_pefa_pack(pefa_pl, kvdl_index, ca, 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, MLXSW_SP_KVDL_ENTRY_TYPE_ACTSET,
			   1, kvdl_index);
	return err;
}

static int mlxsw_sp1_act_kvdl_set_add(void *priv, u32 *p_kvdl_index,
				      char *enc_actions, bool is_first)
{
	return mlxsw_sp_act_kvdl_set_add(priv, p_kvdl_index, enc_actions,
					 is_first, false);
}

static int mlxsw_sp2_act_kvdl_set_add(void *priv, u32 *p_kvdl_index,
				      char *enc_actions, bool is_first)
{
	return mlxsw_sp_act_kvdl_set_add(priv, p_kvdl_index, enc_actions,
					 is_first, true);
}

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, MLXSW_SP_KVDL_ENTRY_TYPE_ACTSET,
			   1, kvdl_index);
}

static int mlxsw_sp1_act_kvdl_set_activity_get(void *priv, u32 kvdl_index,
					       bool *activity)
{
	return -EOPNOTSUPP;
}

static int mlxsw_sp2_act_kvdl_set_activity_get(void *priv, u32 kvdl_index,
					       bool *activity)
{
	struct mlxsw_sp *mlxsw_sp = priv;
	char pefa_pl[MLXSW_REG_PEFA_LEN];
	int err;

	mlxsw_reg_pefa_pack(pefa_pl, kvdl_index, true, NULL);
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pefa), pefa_pl);
	if (err)
		return err;
	mlxsw_reg_pefa_unpack(pefa_pl, activity);
	return 0;
}

static int mlxsw_sp_act_kvdl_fwd_entry_add(void *priv, u32 *p_kvdl_index,
					   u16 local_port)
{
	struct mlxsw_sp *mlxsw_sp = priv;
	char ppbs_pl[MLXSW_REG_PPBS_LEN];
	u32 kvdl_index;

Annotation

Implementation Notes