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devlink: add parser error drop packet traps

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Add parser error drop packet traps, so that capable device driver could
register them with devlink. The new packet trap group holds any drops of
packets which were marked by the device as erroneous during header
parsing. Add documentation for every added packet trap and packet trap
group.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ioana Ciornei
2020-10-01 18:11:45 +03:00
committed by David S. Miller
parent 34ad937770
commit 10c24eb23d
3 changed files with 139 additions and 0 deletions
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17
net/core/devlink.c
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@@ -8925,6 +8925,22 @@ static const struct devlink_trap devlink_trap_generic[] = {
DEVLINK_TRAP(FLOW_ACTION_SAMPLE, CONTROL),
DEVLINK_TRAP(FLOW_ACTION_TRAP, CONTROL),
DEVLINK_TRAP(EARLY_DROP, DROP),
DEVLINK_TRAP(VXLAN_PARSING, DROP),
DEVLINK_TRAP(LLC_SNAP_PARSING, DROP),
DEVLINK_TRAP(VLAN_PARSING, DROP),
DEVLINK_TRAP(PPPOE_PPP_PARSING, DROP),
DEVLINK_TRAP(MPLS_PARSING, DROP),
DEVLINK_TRAP(ARP_PARSING, DROP),
DEVLINK_TRAP(IP_1_PARSING, DROP),
DEVLINK_TRAP(IP_N_PARSING, DROP),
DEVLINK_TRAP(GRE_PARSING, DROP),
DEVLINK_TRAP(UDP_PARSING, DROP),
DEVLINK_TRAP(TCP_PARSING, DROP),
DEVLINK_TRAP(IPSEC_PARSING, DROP),
DEVLINK_TRAP(SCTP_PARSING, DROP),
DEVLINK_TRAP(DCCP_PARSING, DROP),
DEVLINK_TRAP(GTP_PARSING, DROP),
DEVLINK_TRAP(ESP_PARSING, DROP),
};
#define DEVLINK_TRAP_GROUP(_id) \
@@ -8959,6 +8975,7 @@ static const struct devlink_trap_group devlink_trap_group_generic[] = {
DEVLINK_TRAP_GROUP(PTP_GENERAL),
DEVLINK_TRAP_GROUP(ACL_SAMPLE),
DEVLINK_TRAP_GROUP(ACL_TRAP),
DEVLINK_TRAP_GROUP(PARSER_ERROR_DROPS),
};
static int devlink_trap_generic_verify(const struct devlink_trap *trap)