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Message-Id: <20170605143832.7025-6-jiri@resnulli.us>
Date: Mon, 5 Jun 2017 16:38:31 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, jhs@...atatu.com, xiyou.wangcong@...il.com,
edumazet@...gle.com, alexander.h.duyck@...el.com,
stephen@...workplumber.org, daniel@...earbox.net,
mlxsw@...lanox.com
Subject: [patch net-next 5/6] acl: Introduce ACL trap action
From: Jiri Pirko <jiri@...lanox.com>
Use trap/discard flex action to implement trap.
Signed-off-by: Jiri Pirko <jiri@...lanox.com>
Reviewed-by: Yotam Gigi <yotamg@...lanox.com>
---
.../mellanox/mlxsw/core_acl_flex_actions.c | 40 ++++++++++++++++++++--
.../mellanox/mlxsw/core_acl_flex_actions.h | 1 +
drivers/net/ethernet/mellanox/mlxsw/spectrum.h | 1 +
drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c | 5 +++
4 files changed, 45 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.c b/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.c
index 46304ff..5ae1101 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.c
@@ -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)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.h b/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.h
index bd8b91d..f99c341 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.h
@@ -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,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
index 99760fd..4a7a39a 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
@@ -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);
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c
index 1da889a..01a1501 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c
@@ -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)
--
2.9.3
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