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mlxsw: core: Trace EMAD events

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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>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel
2020-12-06 10:22:23 +02:00
committed by David S. Miller
parent 23fb55526d
commit 4834ad8079
1 changed files with 7 additions and 0 deletions
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7
drivers/net/ethernet/mellanox/mlxsw/core.c
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@ -160,6 +160,7 @@ struct mlxsw_rx_listener_item {
struct mlxsw_event_listener_item { struct mlxsw_event_listener_item {
struct list_head list; struct list_head list;
struct mlxsw_core *mlxsw_core;
struct mlxsw_event_listener el; struct mlxsw_event_listener el;
void *priv; void *priv;
}; };
@ -2171,11 +2172,16 @@ static void mlxsw_core_event_listener_func(struct sk_buff *skb, u8 local_port,
void *priv) void *priv)
{ {
struct mlxsw_event_listener_item *event_listener_item = priv; struct mlxsw_event_listener_item *event_listener_item = priv;
struct mlxsw_core *mlxsw_core;
struct mlxsw_reg_info reg; struct mlxsw_reg_info reg;
char *payload; char *payload;
char *reg_tlv; char *reg_tlv;
char *op_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); mlxsw_emad_tlv_parse(skb);
op_tlv = mlxsw_emad_op_tlv(skb); op_tlv = mlxsw_emad_op_tlv(skb);
reg_tlv = mlxsw_emad_reg_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); el_item = kmalloc(sizeof(*el_item), GFP_KERNEL);
if (!el_item) if (!el_item)
return -ENOMEM; return -ENOMEM;
el_item->mlxsw_core = mlxsw_core;
el_item->el = *el; el_item->el = *el;
el_item->priv = priv; el_item->priv = priv;