diff mbox series

[net-next,3/7] mlxsw: core: Trace EMAD events

Message ID 20201206082227.1857042-4-idosch@idosch.org (mailing list archive)
State Accepted
Delegated to: Netdev Maintainers
Headers show
Series mlxsw: Misc updates | expand

Checks

Context Check Description
netdev/cover_letter success Link
netdev/fixes_present success Link
netdev/patch_count success Link
netdev/tree_selection success Clearly marked for net-next
netdev/subject_prefix success Link
netdev/source_inline success Was 0 now: 0
netdev/verify_signedoff success Link
netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/verify_fixes success Link
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 30 lines checked
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/header_inline success Link
netdev/stable success Stable not CCed

Commit Message

Ido Schimmel Dec. 6, 2020, 8:22 a.m. UTC 
From: Ido Schimmel <idosch@nvidia.com>

Currently, mlxsw triggers the 'devlink:devlink_hwmsg' tracepoint
whenever a request is sent to the device and whenever a response is
received from it. However, the tracepoint is not triggered when an event
(e.g., port up / down) is received from the device.

Also trace EMAD events in order to log a more complete picture of all
the exchanged hardware messages.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlxsw/core.c | 7 +++++++
 1 file changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c
index 630109f139a0..c67825a68a26 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.c
@@ -160,6 +160,7 @@  struct mlxsw_rx_listener_item {
 
 struct mlxsw_event_listener_item {
 	struct list_head list;
+	struct mlxsw_core *mlxsw_core;
 	struct mlxsw_event_listener el;
 	void *priv;
 };
@@ -2171,11 +2172,16 @@  static void mlxsw_core_event_listener_func(struct sk_buff *skb, u8 local_port,
 					   void *priv)
 {
 	struct mlxsw_event_listener_item *event_listener_item = priv;
+	struct mlxsw_core *mlxsw_core;
 	struct mlxsw_reg_info reg;
 	char *payload;
 	char *reg_tlv;
 	char *op_tlv;
 
+	mlxsw_core = event_listener_item->mlxsw_core;
+	trace_devlink_hwmsg(priv_to_devlink(mlxsw_core), true, 0,
+			    skb->data, skb->len);
+
 	mlxsw_emad_tlv_parse(skb);
 	op_tlv = mlxsw_emad_op_tlv(skb);
 	reg_tlv = mlxsw_emad_reg_tlv(skb);
@@ -2225,6 +2231,7 @@  int mlxsw_core_event_listener_register(struct mlxsw_core *mlxsw_core,
 	el_item = kmalloc(sizeof(*el_item), GFP_KERNEL);
 	if (!el_item)
 		return -ENOMEM;
+	el_item->mlxsw_core = mlxsw_core;
 	el_item->el = *el;
 	el_item->priv = priv;