| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Mon, 24 Feb 2020 08:35:44 +0100
From: Jiri Pirko <jiri@...nulli.us>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, kuba@...nel.org, idosch@...lanox.com,
mlxsw@...lanox.com
Subject: [patch net-next 02/16] mlxsw: core: Allow to register disabled traps using MLXSW_RXL_DIS
From: Jiri Pirko <jiri@...lanox.com>
Introduce a new macro MLXSW_RXL_DIS that allows to register listeners
as disabled. That allows that from now on, the "action" can be
understood always as "enabled action" and "unreg_action" as "disabled
action". Rename them and treat them accordingly.
Use the new macro for defining drops in spectrum_trap.c.
Signed-off-by: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
---
drivers/net/ethernet/mellanox/mlxsw/core.c | 7 +++--
drivers/net/ethernet/mellanox/mlxsw/core.h | 31 ++++++++++++++-----
.../ethernet/mellanox/mlxsw/spectrum_trap.c | 5 +--
3 files changed, 31 insertions(+), 12 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c
index 4b92ba574073..a01868282008 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.c
@@ -1628,6 +1628,7 @@ static void mlxsw_core_listener_unregister(struct mlxsw_core *mlxsw_core,
int mlxsw_core_trap_register(struct mlxsw_core *mlxsw_core,
const struct mlxsw_listener *listener, void *priv)
{
+ enum mlxsw_reg_hpkt_action action;
char hpkt_pl[MLXSW_REG_HPKT_LEN];
int err;
@@ -1635,7 +1636,9 @@ int mlxsw_core_trap_register(struct mlxsw_core *mlxsw_core,
if (err)
return err;
- mlxsw_reg_hpkt_pack(hpkt_pl, listener->action, listener->trap_id,
+ action = listener->enabled_on_register ? listener->en_action :
+ listener->dis_action;
+ mlxsw_reg_hpkt_pack(hpkt_pl, action, listener->trap_id,
listener->trap_group, listener->is_ctrl);
err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(hpkt), hpkt_pl);
if (err)
@@ -1656,7 +1659,7 @@ void mlxsw_core_trap_unregister(struct mlxsw_core *mlxsw_core,
char hpkt_pl[MLXSW_REG_HPKT_LEN];
if (!listener->is_event) {
- mlxsw_reg_hpkt_pack(hpkt_pl, listener->unreg_action,
+ mlxsw_reg_hpkt_pack(hpkt_pl, listener->dis_action,
listener->trap_id, listener->trap_group,
listener->is_ctrl);
mlxsw_reg_write(mlxsw_core, MLXSW_REG(hpkt), hpkt_pl);
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.h b/drivers/net/ethernet/mellanox/mlxsw/core.h
index 5773e25ecf98..9c4ce3f65944 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.h
@@ -76,15 +76,18 @@ struct mlxsw_listener {
struct mlxsw_rx_listener rx_listener;
struct mlxsw_event_listener event_listener;
};
- enum mlxsw_reg_hpkt_action action;
- enum mlxsw_reg_hpkt_action unreg_action;
+ enum mlxsw_reg_hpkt_action en_action; /* Action when enabled */
+ enum mlxsw_reg_hpkt_action dis_action; /* Action when disabled */
u8 trap_group;
u8 is_ctrl:1, /* should go via control buffer or not */
- is_event:1;
+ is_event:1,
+ enabled_on_register:1; /* Trap should be enabled when listener
+ * is registered.
+ */
};
-#define MLXSW_RXL(_func, _trap_id, _action, _is_ctrl, _trap_group, \
- _unreg_action) \
+#define __MLXSW_RXL(_func, _trap_id, _en_action, _is_ctrl, _trap_group, \
+ _dis_action, _enabled_on_register) \
{ \
.trap_id = MLXSW_TRAP_ID_##_trap_id, \
.rx_listener = \
@@ -93,12 +96,23 @@ struct mlxsw_listener {
.local_port = MLXSW_PORT_DONT_CARE, \
.trap_id = MLXSW_TRAP_ID_##_trap_id, \
}, \
- .action = MLXSW_REG_HPKT_ACTION_##_action, \
- .unreg_action = MLXSW_REG_HPKT_ACTION_##_unreg_action, \
+ .en_action = MLXSW_REG_HPKT_ACTION_##_en_action, \
+ .dis_action = MLXSW_REG_HPKT_ACTION_##_dis_action, \
.trap_group = MLXSW_REG_HTGT_TRAP_GROUP_##_trap_group, \
.is_ctrl = _is_ctrl, \
+ .enabled_on_register = _enabled_on_register, \
}
+#define MLXSW_RXL(_func, _trap_id, _en_action, _is_ctrl, _trap_group, \
+ _dis_action) \
+ __MLXSW_RXL(_func, _trap_id, _en_action, _is_ctrl, _trap_group, \
+ _dis_action, true)
+
+#define MLXSW_RXL_DIS(_func, _trap_id, _en_action, _is_ctrl, _trap_group, \
+ _dis_action) \
+ __MLXSW_RXL(_func, _trap_id, _en_action, _is_ctrl, _trap_group, \
+ _dis_action, false)
+
#define MLXSW_EVENTL(_func, _trap_id, _trap_group) \
{ \
.trap_id = MLXSW_TRAP_ID_##_trap_id, \
@@ -107,9 +121,10 @@ struct mlxsw_listener {
.func = _func, \
.trap_id = MLXSW_TRAP_ID_##_trap_id, \
}, \
- .action = MLXSW_REG_HPKT_ACTION_TRAP_TO_CPU, \
+ .en_action = MLXSW_REG_HPKT_ACTION_TRAP_TO_CPU, \
.trap_group = MLXSW_REG_HTGT_TRAP_GROUP_##_trap_group, \
.is_event = true, \
+ .enabled_on_register = true, \
}
int mlxsw_core_rx_listener_register(struct mlxsw_core *mlxsw_core,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
index 1622fec6512d..7b0fb3cf71ea 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
@@ -118,8 +118,9 @@ static void mlxsw_sp_rx_exception_listener(struct sk_buff *skb, u8 local_port,
MLXSW_SP_TRAP_METADATA)
#define MLXSW_SP_RXL_DISCARD(_id, _group_id) \
- MLXSW_RXL(mlxsw_sp_rx_drop_listener, DISCARD_##_id, SET_FW_DEFAULT, \
- false, SP_##_group_id, SET_FW_DEFAULT)
+ MLXSW_RXL_DIS(mlxsw_sp_rx_drop_listener, DISCARD_##_id, \
+ TRAP_EXCEPTION_TO_CPU, false, SP_##_group_id, \
+ SET_FW_DEFAULT)
#define MLXSW_SP_RXL_EXCEPTION(_id, _group_id, _action) \
MLXSW_RXL(mlxsw_sp_rx_exception_listener, _id, \
--
2.21.1
Powered by blists - more mailing lists