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acl: Introduce ACL trap action 

Use trap/discard flex action to implement trap.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2017-06-06 14:12:06 +02:00 committed by David S. Miller
parent 0db7b386f5
commit df7eea963e
4 changed files with 45 additions and 2 deletions
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40
drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.c
View File

@ -40,6 +40,7 @@
#include <linux/list.h>
#include "item.h"
#include "trap.h"
#include "core_acl_flex_actions.h"
enum mlxsw_afa_set_type {
@ -662,6 +663,16 @@ EXPORT_SYMBOL(mlxsw_afa_block_append_vlan_modify);
#define MLXSW_AFA_TRAPDISC_CODE 0x03
#define MLXSW_AFA_TRAPDISC_SIZE 1
enum mlxsw_afa_trapdisc_trap_action {
MLXSW_AFA_TRAPDISC_TRAP_ACTION_NOP = 0,
MLXSW_AFA_TRAPDISC_TRAP_ACTION_TRAP = 2,
};
/* afa_trapdisc_trap_action
* Trap Action.
*/
MLXSW_ITEM32(afa, trapdisc, trap_action, 0x00, 24, 4);
enum mlxsw_afa_trapdisc_forward_action {
MLXSW_AFA_TRAPDISC_FORWARD_ACTION_DISCARD = 3,
};
@ -671,11 +682,20 @@ enum mlxsw_afa_trapdisc_forward_action {
*/
MLXSW_ITEM32(afa, trapdisc, forward_action, 0x00, 0, 4);
/* afa_trapdisc_trap_id
* Trap ID to configure.
*/
MLXSW_ITEM32(afa, trapdisc, trap_id, 0x04, 0, 9);
static inline void
mlxsw_afa_trapdisc_pack(char *payload,
enum mlxsw_afa_trapdisc_forward_action forward_action)
enum mlxsw_afa_trapdisc_trap_action trap_action,
enum mlxsw_afa_trapdisc_forward_action forward_action,
u16 trap_id)
{
mlxsw_afa_trapdisc_trap_action_set(payload, trap_action);
mlxsw_afa_trapdisc_forward_action_set(payload, forward_action);
mlxsw_afa_trapdisc_trap_id_set(payload, trap_id);
}
int mlxsw_afa_block_append_drop(struct mlxsw_afa_block *block)
@ -686,11 +706,27 @@ int mlxsw_afa_block_append_drop(struct mlxsw_afa_block *block)
if (!act)
return -ENOBUFS;
mlxsw_afa_trapdisc_pack(act, MLXSW_AFA_TRAPDISC_FORWARD_ACTION_DISCARD);
mlxsw_afa_trapdisc_pack(act, MLXSW_AFA_TRAPDISC_TRAP_ACTION_NOP,
MLXSW_AFA_TRAPDISC_FORWARD_ACTION_DISCARD, 0);
return 0;
}
EXPORT_SYMBOL(mlxsw_afa_block_append_drop);
int mlxsw_afa_block_append_trap(struct mlxsw_afa_block *block)
{
char *act = mlxsw_afa_block_append_action(block,
MLXSW_AFA_TRAPDISC_CODE,
MLXSW_AFA_TRAPDISC_SIZE);
if (!act)
return -ENOBUFS;
mlxsw_afa_trapdisc_pack(act, MLXSW_AFA_TRAPDISC_TRAP_ACTION_TRAP,
MLXSW_AFA_TRAPDISC_FORWARD_ACTION_DISCARD,
MLXSW_TRAP_ID_ACL0);
return 0;
}
EXPORT_SYMBOL(mlxsw_afa_block_append_trap);
/* Forwarding Action
* -----------------
* Forwarding Action can be used to implement Policy Based Switching (PBS)

1
drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.h
View File

@ -60,6 +60,7 @@ u32 mlxsw_afa_block_first_set_kvdl_index(struct mlxsw_afa_block *block);
void mlxsw_afa_block_continue(struct mlxsw_afa_block *block);
void mlxsw_afa_block_jump(struct mlxsw_afa_block *block, u16 group_id);
int mlxsw_afa_block_append_drop(struct mlxsw_afa_block *block);
int mlxsw_afa_block_append_trap(struct mlxsw_afa_block *block);
int mlxsw_afa_block_append_fwd(struct mlxsw_afa_block *block,
u8 local_port, bool in_port);
int mlxsw_afa_block_append_vlan_modify(struct mlxsw_afa_block *block,

1
drivers/net/ethernet/mellanox/mlxsw/spectrum.h
View File

@ -460,6 +460,7 @@ void mlxsw_sp_acl_rulei_act_continue(struct mlxsw_sp_acl_rule_info *rulei);
void mlxsw_sp_acl_rulei_act_jump(struct mlxsw_sp_acl_rule_info *rulei,
u16 group_id);
int mlxsw_sp_acl_rulei_act_drop(struct mlxsw_sp_acl_rule_info *rulei);
int mlxsw_sp_acl_rulei_act_trap(struct mlxsw_sp_acl_rule_info *rulei);
int mlxsw_sp_acl_rulei_act_fwd(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_rule_info *rulei,
struct net_device *out_dev);

5
drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c
View File

@ -347,6 +347,11 @@ int mlxsw_sp_acl_rulei_act_drop(struct mlxsw_sp_acl_rule_info *rulei)
return mlxsw_afa_block_append_drop(rulei->act_block);
}
int mlxsw_sp_acl_rulei_act_trap(struct mlxsw_sp_acl_rule_info *rulei)
{
return mlxsw_afa_block_append_trap(rulei->act_block);
}
int mlxsw_sp_acl_rulei_act_fwd(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_rule_info *rulei,
struct net_device *out_dev)