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devlink: Add ACL control packet traps

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Add packet traps for packets that are sampled / trapped by ACLs, so that
capable drivers could register them with devlink. Add documentation for
every added packet trap and packet trap group.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2020-05-29 21:36:43 +03:00 committed by David S. Miller
parent d77cfd162a
commit 5eb18a2b6c
3 changed files with 30 additions and 0 deletions
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14
Documentation/networking/devlink/devlink-trap.rst
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@ -397,6 +397,14 @@ be added to the following table:
- ``control``
- Traps PTP general messages (Announce, Follow_Up, Delay_Resp,
Pdelay_Resp_Follow_Up, management and signaling)
* - ``flow_action_sample``
- ``control``
- Traps packets sampled during processing of flow action sample (e.g., via
tc's sample action)
* - ``flow_action_trap``
- ``control``
- Traps packets logged during processing of flow action trap (e.g., via
tc's trap action)
Driver-specific Packet Traps
============================
@ -487,6 +495,12 @@ narrow. The description of these groups must be added to the following table:
* - ``ptp_general``
- Contains packet traps for PTP general messages (Announce, Follow_Up,
Delay_Resp, Pdelay_Resp_Follow_Up, management and signaling)
* - ``acl_sample``
- Contains packet traps for packets that were sampled by the device during
ACL processing
* - ``acl_trap``
- Contains packet traps for packets that were trapped (logged) by the
device during ACL processing
Packet Trap Policers
====================

12
include/net/devlink.h
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@ -687,6 +687,8 @@ enum devlink_trap_generic_id {
DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_ALERT,
DEVLINK_TRAP_GENERIC_ID_PTP_EVENT,
DEVLINK_TRAP_GENERIC_ID_PTP_GENERAL,
DEVLINK_TRAP_GENERIC_ID_FLOW_ACTION_SAMPLE,
DEVLINK_TRAP_GENERIC_ID_FLOW_ACTION_TRAP,
/* Add new generic trap IDs above */
__DEVLINK_TRAP_GENERIC_ID_MAX,
@ -719,6 +721,8 @@ enum devlink_trap_group_generic_id {
DEVLINK_TRAP_GROUP_GENERIC_ID_IPV6,
DEVLINK_TRAP_GROUP_GENERIC_ID_PTP_EVENT,
DEVLINK_TRAP_GROUP_GENERIC_ID_PTP_GENERAL,
DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_SAMPLE,
DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_TRAP,
/* Add new generic trap group IDs above */
__DEVLINK_TRAP_GROUP_GENERIC_ID_MAX,
@ -868,6 +872,10 @@ enum devlink_trap_group_generic_id {
"ptp_event"
#define DEVLINK_TRAP_GENERIC_NAME_PTP_GENERAL \
"ptp_general"
#define DEVLINK_TRAP_GENERIC_NAME_FLOW_ACTION_SAMPLE \
"flow_action_sample"
#define DEVLINK_TRAP_GENERIC_NAME_FLOW_ACTION_TRAP \
"flow_action_trap"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \
"l2_drops"
@ -913,6 +921,10 @@ enum devlink_trap_group_generic_id {
"ptp_event"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_PTP_GENERAL \
"ptp_general"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_SAMPLE \
"acl_sample"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_TRAP \
"acl_trap"
#define DEVLINK_TRAP_GENERIC(_type, _init_action, _id, _group_id, \
_metadata_cap) \

4
net/core/devlink.c
View File

@ -8537,6 +8537,8 @@ static const struct devlink_trap devlink_trap_generic[] = {
DEVLINK_TRAP(IPV6_ROUTER_ALERT, CONTROL),
DEVLINK_TRAP(PTP_EVENT, CONTROL),
DEVLINK_TRAP(PTP_GENERAL, CONTROL),
DEVLINK_TRAP(FLOW_ACTION_SAMPLE, CONTROL),
DEVLINK_TRAP(FLOW_ACTION_TRAP, CONTROL),
};
#define DEVLINK_TRAP_GROUP(_id) \
@ -8568,6 +8570,8 @@ static const struct devlink_trap_group devlink_trap_group_generic[] = {
DEVLINK_TRAP_GROUP(IPV6),
DEVLINK_TRAP_GROUP(PTP_EVENT),
DEVLINK_TRAP_GROUP(PTP_GENERAL),
DEVLINK_TRAP_GROUP(ACL_SAMPLE),
DEVLINK_TRAP_GROUP(ACL_TRAP),
};
static int devlink_trap_generic_verify(const struct devlink_trap *trap)