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devlink: Add generic packet traps and groups 

Add generic packet traps and groups that can report dropped packets as
well as exceptions such as TTL error.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2019-08-17 16:28:18 +03:00 committed by David S. Miller
parent 0f420b6c52
commit 391203ab11
2 changed files with 52 additions and 0 deletions
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40
include/net/devlink.h
View File

@ -541,18 +541,58 @@ struct devlink_trap {
};
enum devlink_trap_generic_id {
DEVLINK_TRAP_GENERIC_ID_SMAC_MC,
DEVLINK_TRAP_GENERIC_ID_VLAN_TAG_MISMATCH,
DEVLINK_TRAP_GENERIC_ID_INGRESS_VLAN_FILTER,
DEVLINK_TRAP_GENERIC_ID_INGRESS_STP_FILTER,
DEVLINK_TRAP_GENERIC_ID_EMPTY_TX_LIST,
DEVLINK_TRAP_GENERIC_ID_PORT_LOOPBACK_FILTER,
DEVLINK_TRAP_GENERIC_ID_BLACKHOLE_ROUTE,
DEVLINK_TRAP_GENERIC_ID_TTL_ERROR,
DEVLINK_TRAP_GENERIC_ID_TAIL_DROP,
/* Add new generic trap IDs above */
__DEVLINK_TRAP_GENERIC_ID_MAX,
DEVLINK_TRAP_GENERIC_ID_MAX = __DEVLINK_TRAP_GENERIC_ID_MAX - 1,
};
enum devlink_trap_group_generic_id {
DEVLINK_TRAP_GROUP_GENERIC_ID_L2_DROPS,
DEVLINK_TRAP_GROUP_GENERIC_ID_L3_DROPS,
DEVLINK_TRAP_GROUP_GENERIC_ID_BUFFER_DROPS,
/* Add new generic trap group IDs above */
__DEVLINK_TRAP_GROUP_GENERIC_ID_MAX,
DEVLINK_TRAP_GROUP_GENERIC_ID_MAX =
__DEVLINK_TRAP_GROUP_GENERIC_ID_MAX - 1,
};
#define DEVLINK_TRAP_GENERIC_NAME_SMAC_MC \
"source_mac_is_multicast"
#define DEVLINK_TRAP_GENERIC_NAME_VLAN_TAG_MISMATCH \
"vlan_tag_mismatch"
#define DEVLINK_TRAP_GENERIC_NAME_INGRESS_VLAN_FILTER \
"ingress_vlan_filter"
#define DEVLINK_TRAP_GENERIC_NAME_INGRESS_STP_FILTER \
"ingress_spanning_tree_filter"
#define DEVLINK_TRAP_GENERIC_NAME_EMPTY_TX_LIST \
"port_list_is_empty"
#define DEVLINK_TRAP_GENERIC_NAME_PORT_LOOPBACK_FILTER \
"port_loopback_filter"
#define DEVLINK_TRAP_GENERIC_NAME_BLACKHOLE_ROUTE \
"blackhole_route"
#define DEVLINK_TRAP_GENERIC_NAME_TTL_ERROR \
"ttl_value_is_too_small"
#define DEVLINK_TRAP_GENERIC_NAME_TAIL_DROP \
"tail_drop"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \
"l2_drops"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L3_DROPS \
"l3_drops"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_BUFFER_DROPS \
"buffer_drops"
#define DEVLINK_TRAP_GENERIC(_type, _init_action, _id, _group, _metadata_cap) \
{ \
.type = DEVLINK_TRAP_TYPE_##_type, \

12
net/core/devlink.c
View File

@ -7443,6 +7443,15 @@ EXPORT_SYMBOL_GPL(devlink_region_snapshot_create);
}
static const struct devlink_trap devlink_trap_generic[] = {
DEVLINK_TRAP(SMAC_MC, DROP),
DEVLINK_TRAP(VLAN_TAG_MISMATCH, DROP),
DEVLINK_TRAP(INGRESS_VLAN_FILTER, DROP),
DEVLINK_TRAP(INGRESS_STP_FILTER, DROP),
DEVLINK_TRAP(EMPTY_TX_LIST, DROP),
DEVLINK_TRAP(PORT_LOOPBACK_FILTER, DROP),
DEVLINK_TRAP(BLACKHOLE_ROUTE, DROP),
DEVLINK_TRAP(TTL_ERROR, EXCEPTION),
DEVLINK_TRAP(TAIL_DROP, DROP),
};
#define DEVLINK_TRAP_GROUP(_id) \
@ -7452,6 +7461,9 @@ static const struct devlink_trap devlink_trap_generic[] = {
}
static const struct devlink_trap_group devlink_trap_group_generic[] = {
DEVLINK_TRAP_GROUP(L2_DROPS),
DEVLINK_TRAP_GROUP(L3_DROPS),
DEVLINK_TRAP_GROUP(BUFFER_DROPS),
};
static int devlink_trap_generic_verify(const struct devlink_trap *trap)