netdev - [RFC PATCH net-next 08/12] mlxsw: core: Add API to set trap action

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Date:   Tue, 28 May 2019 15:21:32 +0300
From:   Ido Schimmel <idosch@...sch.org>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, jiri@...lanox.com, mlxsw@...lanox.com,
        dsahern@...il.com, roopa@...ulusnetworks.com,
        nikolay@...ulusnetworks.com, andy@...yhouse.net,
        pablo@...filter.org, jakub.kicinski@...ronome.com,
        pieter.jansenvanvuuren@...ronome.com, andrew@...n.ch,
        f.fainelli@...il.com, vivien.didelot@...oirfairelinux.com,
        Ido Schimmel <idosch@...lanox.com>
Subject: [RFC PATCH net-next 08/12] mlxsw: core: Add API to set trap action

From: Ido Schimmel <idosch@...lanox.com>

Up until now the action of a trap was never changed during its lifetime.
This is going to change by subsequent patches that will allow devlink to
control the action of certain traps.

Signed-off-by: Ido Schimmel <idosch@...lanox.com>
Acked-by: Jiri Pirko <jiri@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlxsw/core.c | 12 ++++++++++++
 drivers/net/ethernet/mellanox/mlxsw/core.h |  3 +++
 2 files changed, 15 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c
index 6ee6de7f0160..7cd869327f4e 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.c
@@ -1452,6 +1452,18 @@ void mlxsw_core_trap_unregister(struct mlxsw_core *mlxsw_core,
 }
 EXPORT_SYMBOL(mlxsw_core_trap_unregister);
 
+int mlxsw_core_trap_action_set(struct mlxsw_core *mlxsw_core,
+			       const struct mlxsw_listener *listener,
+			       enum mlxsw_reg_hpkt_action action)
+{
+	char hpkt_pl[MLXSW_REG_HPKT_LEN];
+
+	mlxsw_reg_hpkt_pack(hpkt_pl, action, listener->trap_id,
+			    listener->trap_group, listener->is_ctrl);
+	return mlxsw_reg_write(mlxsw_core, MLXSW_REG(hpkt), hpkt_pl);
+}
+EXPORT_SYMBOL(mlxsw_core_trap_action_set);
+
 static u64 mlxsw_core_tid_get(struct mlxsw_core *mlxsw_core)
 {
 	return atomic64_inc_return(&mlxsw_core->emad.tid);
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.h b/drivers/net/ethernet/mellanox/mlxsw/core.h
index 5add61a7514e..39c277edc807 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.h
@@ -126,6 +126,9 @@ int mlxsw_core_trap_register(struct mlxsw_core *mlxsw_core,
 void mlxsw_core_trap_unregister(struct mlxsw_core *mlxsw_core,
 				const struct mlxsw_listener *listener,
 				void *priv);
+int mlxsw_core_trap_action_set(struct mlxsw_core *mlxsw_core,
+			       const struct mlxsw_listener *listener,
+			       enum mlxsw_reg_hpkt_action action);
 
 typedef void mlxsw_reg_trans_cb_t(struct mlxsw_core *mlxsw_core, char *payload,
 				  size_t payload_len, unsigned long cb_priv);
-- 
2.20.1