* [PATCH net-next 00/14] devlink: Add support for control packet traps
@ 2020-05-29 18:36 Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 01/14] devlink: Create dedicated trap group for layer 3 exceptions Ido Schimmel
` (14 more replies)
0 siblings, 15 replies; 16+ messages in thread
From: Ido Schimmel @ 2020-05-29 18:36 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, jiri, mlxsw, Ido Schimmel
From: Ido Schimmel <idosch@mellanox.com>
So far device drivers were only able to register drop and exception
packet traps with devlink. These traps are used for packets that were
either dropped by the underlying device or encountered an exception
(e.g., missing neighbour entry) during forwarding.
However, in the steady state, the majority of the packets being trapped
to the CPU are packets that are required for the correct functioning of
the control plane. For example, ARP request and IGMP query packets.
This patch set allows device drivers to register such control traps with
devlink and expose their default control plane policy to user space.
User space can then tune the packet trap policer settings according to
its needs, as with existing packet traps.
In a similar fashion to exception traps, the action associated with such
traps cannot be changed as it can easily break the control plane. Unlike
drop and exception traps, packets trapped via control traps are not
reported to the kernel's drop monitor as they are not indicative of any
problem.
Patch set overview:
Patches #1-#3 break out layer 3 exceptions to a different group to
provide better granularity. A future patch set will make this completely
configurable.
Patch #4 adds a new trap action ('mirror') that is used for packets that
are forwarded by the device and sent to the CPU. Such packets are marked
by device drivers with 'skb->offload_fwd_mark = 1' in order to prevent
the kernel from forwarding them again.
Patch #5 adds the new trap type, 'control'.
Patches #6-#8 gradually add various control traps to devlink with proper
documentation.
Patch #9 adds a few control traps to netdevsim, which are automatically
exercised by existing devlink-trap selftest.
Patches #10 performs small refactoring in mlxsw.
Patches #11-#13 change mlxsw to register its existing control traps with
devlink.
Patch #14 adds a selftest over mlxsw that exercises all the registered
control traps.
Ido Schimmel (14):
devlink: Create dedicated trap group for layer 3 exceptions
mlxsw: spectrum_trap: Move layer 3 exceptions to exceptions trap group
netdevsim: Move layer 3 exceptions to exceptions trap group
devlink: Add 'mirror' trap action
devlink: Add 'control' trap type
devlink: Add layer 2 control packet traps
devlink: Add layer 3 control packet traps
devlink: Add ACL control packet traps
netdevsim: Register control traps
mlxsw: spectrum_trap: Factor out common Rx listener function
mlxsw: spectrum_trap: Register layer 2 control traps
mlxsw: spectrum_trap: Register layer 3 control traps
mlxsw: spectrum_trap: Register ACL control traps
selftests: mlxsw: Add test for control packets
.../networking/devlink/devlink-trap.rst | 219 +++++-
drivers/net/ethernet/mellanox/mlxsw/reg.h | 2 +-
.../net/ethernet/mellanox/mlxsw/spectrum.c | 149 +---
.../net/ethernet/mellanox/mlxsw/spectrum.h | 4 +
.../ethernet/mellanox/mlxsw/spectrum_trap.c | 583 ++++++++++++++-
drivers/net/netdevsim/dev.c | 10 +-
include/net/devlink.h | 189 +++++
include/uapi/linux/devlink.h | 9 +
net/core/devlink.c | 73 +-
.../drivers/net/mlxsw/devlink_trap_control.sh | 688 ++++++++++++++++++
.../selftests/net/forwarding/devlink_lib.sh | 23 +
11 files changed, 1781 insertions(+), 168 deletions(-)
create mode 100755 tools/testing/selftests/drivers/net/mlxsw/devlink_trap_control.sh
--
2.26.2
^ permalink raw reply [flat|nested] 16+ messages in thread
* [PATCH net-next 01/14] devlink: Create dedicated trap group for layer 3 exceptions
2020-05-29 18:36 [PATCH net-next 00/14] devlink: Add support for control packet traps Ido Schimmel
@ 2020-05-29 18:36 ` Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 02/14] mlxsw: spectrum_trap: Move layer 3 exceptions to exceptions trap group Ido Schimmel
` (13 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: Ido Schimmel @ 2020-05-29 18:36 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, jiri, mlxsw, Ido Schimmel
From: Ido Schimmel <idosch@mellanox.com>
Packets that hit exceptions during layer 3 forwarding must be trapped to
the CPU for the control plane to function properly. Create a dedicated
group for them, so that user space could choose to assign a different
policer for them.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
---
Documentation/networking/devlink/devlink-trap.rst | 7 +++++--
include/net/devlink.h | 3 +++
net/core/devlink.c | 1 +
3 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/Documentation/networking/devlink/devlink-trap.rst b/Documentation/networking/devlink/devlink-trap.rst
index fe089acb7783..4ca241e70064 100644
--- a/Documentation/networking/devlink/devlink-trap.rst
+++ b/Documentation/networking/devlink/devlink-trap.rst
@@ -277,8 +277,11 @@ narrow. The description of these groups must be added to the following table:
- Contains packet traps for packets that were dropped by the device during
layer 2 forwarding (i.e., bridge)
* - ``l3_drops``
- - Contains packet traps for packets that were dropped by the device or hit
- an exception (e.g., TTL error) during layer 3 forwarding
+ - Contains packet traps for packets that were dropped by the device during
+ layer 3 forwarding
+ * - ``l3_exceptions``
+ - Contains packet traps for packets that hit an exception (e.g., TTL
+ error) during layer 3 forwarding
* - ``buffer_drops``
- Contains packet traps for packets that were dropped by the device due to
an enqueue decision
diff --git a/include/net/devlink.h b/include/net/devlink.h
index 8ffc1b5cd89b..851388c9d795 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -657,6 +657,7 @@ enum devlink_trap_generic_id {
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_L3_EXCEPTIONS,
DEVLINK_TRAP_GROUP_GENERIC_ID_BUFFER_DROPS,
DEVLINK_TRAP_GROUP_GENERIC_ID_TUNNEL_DROPS,
DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_DROPS,
@@ -730,6 +731,8 @@ enum devlink_trap_group_generic_id {
"l2_drops"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L3_DROPS \
"l3_drops"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L3_EXCEPTIONS \
+ "l3_exceptions"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_BUFFER_DROPS \
"buffer_drops"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_TUNNEL_DROPS \
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 7b76e5fffc10..d9fff7083f02 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -8505,6 +8505,7 @@ 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(L3_EXCEPTIONS),
DEVLINK_TRAP_GROUP(BUFFER_DROPS),
DEVLINK_TRAP_GROUP(TUNNEL_DROPS),
DEVLINK_TRAP_GROUP(ACL_DROPS),
--
2.26.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH net-next 02/14] mlxsw: spectrum_trap: Move layer 3 exceptions to exceptions trap group
2020-05-29 18:36 [PATCH net-next 00/14] devlink: Add support for control packet traps Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 01/14] devlink: Create dedicated trap group for layer 3 exceptions Ido Schimmel
@ 2020-05-29 18:36 ` Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 03/14] netdevsim: " Ido Schimmel
` (12 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: Ido Schimmel @ 2020-05-29 18:36 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, jiri, mlxsw, Ido Schimmel
From: Ido Schimmel <idosch@mellanox.com>
The layer 3 exceptions are still subject to the same trap policer, so
nothing changes, but user space can choose to assign a different one.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
---
drivers/net/ethernet/mellanox/mlxsw/reg.h | 1 +
.../ethernet/mellanox/mlxsw/spectrum_trap.c | 40 +++++++++++--------
2 files changed, 25 insertions(+), 16 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index 38fa7304af0c..030d6f9766d2 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -5552,6 +5552,7 @@ enum mlxsw_reg_htgt_trap_group {
MLXSW_REG_HTGT_TRAP_GROUP_SP_DUMMY,
MLXSW_REG_HTGT_TRAP_GROUP_SP_L2_DISCARDS,
MLXSW_REG_HTGT_TRAP_GROUP_SP_L3_DISCARDS,
+ MLXSW_REG_HTGT_TRAP_GROUP_SP_L3_EXCEPTIONS,
MLXSW_REG_HTGT_TRAP_GROUP_SP_TUNNEL_DISCARDS,
MLXSW_REG_HTGT_TRAP_GROUP_SP_ACL_DISCARDS,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
index f4b812276a5a..dc2217f1a07f 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
@@ -212,6 +212,11 @@ static const struct mlxsw_sp_trap_group_item mlxsw_sp_trap_group_items_arr[] = {
.hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_L3_DISCARDS,
.priority = 0,
},
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(L3_EXCEPTIONS, 1),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_L3_EXCEPTIONS,
+ .priority = 2,
+ },
{
.group = DEVLINK_TRAP_GROUP_GENERIC(TUNNEL_DROPS, 1),
.hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_TUNNEL_DISCARDS,
@@ -332,56 +337,59 @@ static const struct mlxsw_sp_trap_item mlxsw_sp_trap_items_arr[] = {
},
},
{
- .trap = MLXSW_SP_TRAP_EXCEPTION(MTU_ERROR, L3_DROPS),
+ .trap = MLXSW_SP_TRAP_EXCEPTION(MTU_ERROR, L3_EXCEPTIONS),
.listeners_arr = {
- MLXSW_SP_RXL_EXCEPTION(MTUERROR, L3_DISCARDS,
+ MLXSW_SP_RXL_EXCEPTION(MTUERROR, L3_EXCEPTIONS,
TRAP_TO_CPU),
},
},
{
- .trap = MLXSW_SP_TRAP_EXCEPTION(TTL_ERROR, L3_DROPS),
+ .trap = MLXSW_SP_TRAP_EXCEPTION(TTL_ERROR, L3_EXCEPTIONS),
.listeners_arr = {
- MLXSW_SP_RXL_EXCEPTION(TTLERROR, L3_DISCARDS,
+ MLXSW_SP_RXL_EXCEPTION(TTLERROR, L3_EXCEPTIONS,
TRAP_TO_CPU),
},
},
{
- .trap = MLXSW_SP_TRAP_EXCEPTION(RPF, L3_DROPS),
+ .trap = MLXSW_SP_TRAP_EXCEPTION(RPF, L3_EXCEPTIONS),
.listeners_arr = {
- MLXSW_SP_RXL_EXCEPTION(RPF, L3_DISCARDS, TRAP_TO_CPU),
+ MLXSW_SP_RXL_EXCEPTION(RPF, L3_EXCEPTIONS, TRAP_TO_CPU),
},
},
{
- .trap = MLXSW_SP_TRAP_EXCEPTION(REJECT_ROUTE, L3_DROPS),
+ .trap = MLXSW_SP_TRAP_EXCEPTION(REJECT_ROUTE, L3_EXCEPTIONS),
.listeners_arr = {
- MLXSW_SP_RXL_EXCEPTION(RTR_INGRESS1, L3_DISCARDS,
+ MLXSW_SP_RXL_EXCEPTION(RTR_INGRESS1, L3_EXCEPTIONS,
TRAP_TO_CPU),
},
},
{
- .trap = MLXSW_SP_TRAP_EXCEPTION(UNRESOLVED_NEIGH, L3_DROPS),
+ .trap = MLXSW_SP_TRAP_EXCEPTION(UNRESOLVED_NEIGH,
+ L3_EXCEPTIONS),
.listeners_arr = {
- MLXSW_SP_RXL_EXCEPTION(HOST_MISS_IPV4, L3_DISCARDS,
+ MLXSW_SP_RXL_EXCEPTION(HOST_MISS_IPV4, L3_EXCEPTIONS,
TRAP_TO_CPU),
- MLXSW_SP_RXL_EXCEPTION(HOST_MISS_IPV6, L3_DISCARDS,
+ MLXSW_SP_RXL_EXCEPTION(HOST_MISS_IPV6, L3_EXCEPTIONS,
TRAP_TO_CPU),
- MLXSW_SP_RXL_EXCEPTION(DISCARD_ROUTER3, L3_DISCARDS,
+ MLXSW_SP_RXL_EXCEPTION(DISCARD_ROUTER3, L3_EXCEPTIONS,
TRAP_EXCEPTION_TO_CPU),
},
},
{
.trap = MLXSW_SP_TRAP_EXCEPTION(IPV4_LPM_UNICAST_MISS,
- L3_DROPS),
+ L3_EXCEPTIONS),
.listeners_arr = {
- MLXSW_SP_RXL_EXCEPTION(DISCARD_ROUTER_LPM4, L3_DISCARDS,
+ MLXSW_SP_RXL_EXCEPTION(DISCARD_ROUTER_LPM4,
+ L3_EXCEPTIONS,
TRAP_EXCEPTION_TO_CPU),
},
},
{
.trap = MLXSW_SP_TRAP_EXCEPTION(IPV6_LPM_UNICAST_MISS,
- L3_DROPS),
+ L3_EXCEPTIONS),
.listeners_arr = {
- MLXSW_SP_RXL_EXCEPTION(DISCARD_ROUTER_LPM6, L3_DISCARDS,
+ MLXSW_SP_RXL_EXCEPTION(DISCARD_ROUTER_LPM6,
+ L3_EXCEPTIONS,
TRAP_EXCEPTION_TO_CPU),
},
},
--
2.26.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH net-next 03/14] netdevsim: Move layer 3 exceptions to exceptions trap group
2020-05-29 18:36 [PATCH net-next 00/14] devlink: Add support for control packet traps Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 01/14] devlink: Create dedicated trap group for layer 3 exceptions Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 02/14] mlxsw: spectrum_trap: Move layer 3 exceptions to exceptions trap group Ido Schimmel
@ 2020-05-29 18:36 ` Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 04/14] devlink: Add 'mirror' trap action Ido Schimmel
` (11 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: Ido Schimmel @ 2020-05-29 18:36 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, jiri, mlxsw, Ido Schimmel
From: Ido Schimmel <idosch@mellanox.com>
The layer 3 exceptions are still subject to the same trap policer, so
nothing changes, but user space can choose to assign a different one.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
---
drivers/net/netdevsim/dev.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c
index dc3ff0e20944..09d947eff980 100644
--- a/drivers/net/netdevsim/dev.c
+++ b/drivers/net/netdevsim/dev.c
@@ -458,6 +458,7 @@ static const struct devlink_trap_policer nsim_trap_policers_arr[] = {
static const struct devlink_trap_group nsim_trap_groups_arr[] = {
DEVLINK_TRAP_GROUP_GENERIC(L2_DROPS, 0),
DEVLINK_TRAP_GROUP_GENERIC(L3_DROPS, 1),
+ DEVLINK_TRAP_GROUP_GENERIC(L3_EXCEPTIONS, 1),
DEVLINK_TRAP_GROUP_GENERIC(BUFFER_DROPS, 2),
DEVLINK_TRAP_GROUP_GENERIC(ACL_DROPS, 3),
};
@@ -471,7 +472,7 @@ static const struct devlink_trap nsim_traps_arr[] = {
NSIM_TRAP_DROP(PORT_LOOPBACK_FILTER, L2_DROPS),
NSIM_TRAP_DRIVER_EXCEPTION(FID_MISS, L2_DROPS),
NSIM_TRAP_DROP(BLACKHOLE_ROUTE, L3_DROPS),
- NSIM_TRAP_EXCEPTION(TTL_ERROR, L3_DROPS),
+ NSIM_TRAP_EXCEPTION(TTL_ERROR, L3_EXCEPTIONS),
NSIM_TRAP_DROP(TAIL_DROP, BUFFER_DROPS),
NSIM_TRAP_DROP_EXT(INGRESS_FLOW_ACTION_DROP, ACL_DROPS,
DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE),
--
2.26.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH net-next 04/14] devlink: Add 'mirror' trap action
2020-05-29 18:36 [PATCH net-next 00/14] devlink: Add support for control packet traps Ido Schimmel
` (2 preceding siblings ...)
2020-05-29 18:36 ` [PATCH net-next 03/14] netdevsim: " Ido Schimmel
@ 2020-05-29 18:36 ` Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 05/14] devlink: Add 'control' trap type Ido Schimmel
` (10 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: Ido Schimmel @ 2020-05-29 18:36 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, jiri, mlxsw, Ido Schimmel
From: Ido Schimmel <idosch@mellanox.com>
The action is used by control traps such as IGMP query. The packet is
flooded by the device, but also trapped to the CPU in order for the
software bridge to mark the receiving port as a multicast router port.
Such packets are marked with 'skb->offload_fwd_mark = 1' in order to
prevent the software bridge from flooding them again.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
---
Documentation/networking/devlink/devlink-trap.rst | 2 ++
include/uapi/linux/devlink.h | 3 +++
net/core/devlink.c | 3 ++-
3 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/Documentation/networking/devlink/devlink-trap.rst b/Documentation/networking/devlink/devlink-trap.rst
index 4ca241e70064..5b97327caefc 100644
--- a/Documentation/networking/devlink/devlink-trap.rst
+++ b/Documentation/networking/devlink/devlink-trap.rst
@@ -108,6 +108,8 @@ The ``devlink-trap`` mechanism supports the following packet trap actions:
* ``trap``: The sole copy of the packet is sent to the CPU.
* ``drop``: The packet is dropped by the underlying device and a copy is not
sent to the CPU.
+ * ``mirror``: The packet is forwarded by the underlying device and a copy is
+ sent to the CPU.
Generic Packet Traps
====================
diff --git a/include/uapi/linux/devlink.h b/include/uapi/linux/devlink.h
index 1ae90e06c06d..16305932a950 100644
--- a/include/uapi/linux/devlink.h
+++ b/include/uapi/linux/devlink.h
@@ -233,10 +233,13 @@ enum {
* @DEVLINK_TRAP_ACTION_DROP: Packet is dropped by the device and a copy is not
* sent to the CPU.
* @DEVLINK_TRAP_ACTION_TRAP: The sole copy of the packet is sent to the CPU.
+ * @DEVLINK_TRAP_ACTION_MIRROR: Packet is forwarded by the device and a copy is
+ * sent to the CPU.
*/
enum devlink_trap_action {
DEVLINK_TRAP_ACTION_DROP,
DEVLINK_TRAP_ACTION_TRAP,
+ DEVLINK_TRAP_ACTION_MIRROR,
};
/**
diff --git a/net/core/devlink.c b/net/core/devlink.c
index d9fff7083f02..d6298917b077 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -5869,7 +5869,8 @@ devlink_trap_action_get_from_info(struct genl_info *info,
val = nla_get_u8(info->attrs[DEVLINK_ATTR_TRAP_ACTION]);
switch (val) {
case DEVLINK_TRAP_ACTION_DROP: /* fall-through */
- case DEVLINK_TRAP_ACTION_TRAP:
+ case DEVLINK_TRAP_ACTION_TRAP: /* fall-through */
+ case DEVLINK_TRAP_ACTION_MIRROR:
*p_trap_action = val;
break;
default:
--
2.26.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH net-next 05/14] devlink: Add 'control' trap type
2020-05-29 18:36 [PATCH net-next 00/14] devlink: Add support for control packet traps Ido Schimmel
` (3 preceding siblings ...)
2020-05-29 18:36 ` [PATCH net-next 04/14] devlink: Add 'mirror' trap action Ido Schimmel
@ 2020-05-29 18:36 ` Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 06/14] devlink: Add layer 2 control packet traps Ido Schimmel
` (9 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: Ido Schimmel @ 2020-05-29 18:36 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, jiri, mlxsw, Ido Schimmel
From: Ido Schimmel <idosch@mellanox.com>
This type is used for traps that trap control packets such as ARP
request and IGMP query to the CPU.
Do not report such packets to the kernel's drop monitor as they were not
dropped by the device no encountered an exception during forwarding.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
---
Documentation/networking/devlink/devlink-trap.rst | 8 +++++++-
include/uapi/linux/devlink.h | 6 ++++++
net/core/devlink.c | 7 +++++++
3 files changed, 20 insertions(+), 1 deletion(-)
diff --git a/Documentation/networking/devlink/devlink-trap.rst b/Documentation/networking/devlink/devlink-trap.rst
index 5b97327caefc..6c293cfa23ee 100644
--- a/Documentation/networking/devlink/devlink-trap.rst
+++ b/Documentation/networking/devlink/devlink-trap.rst
@@ -55,7 +55,7 @@ The following diagram provides a general overview of ``devlink-trap``::
| |
+-------^--------+
|
- |
+ | Non-control traps
|
+----+----+
| | Kernel's Rx path
@@ -97,6 +97,12 @@ The ``devlink-trap`` mechanism supports the following packet trap types:
processed by ``devlink`` and injected to the kernel's Rx path. Changing the
action of such traps is not allowed, as it can easily break the control
plane.
+ * ``control``: Trapped packets were trapped by the device because these are
+ control packets required for the correct functioning of the control plane.
+ For example, ARP request and IGMP query packets. Packets are injected to
+ the kernel's Rx path, but not reported to the kernel's drop monitor.
+ Changing the action of such traps is not allowed, as it can easily break
+ the control plane.
.. _Trap-Actions:
diff --git a/include/uapi/linux/devlink.h b/include/uapi/linux/devlink.h
index 16305932a950..08563e6a424d 100644
--- a/include/uapi/linux/devlink.h
+++ b/include/uapi/linux/devlink.h
@@ -253,10 +253,16 @@ enum devlink_trap_action {
* control plane for resolution. Trapped packets
* are processed by devlink and injected to
* the kernel's Rx path.
+ * @DEVLINK_TRAP_TYPE_CONTROL: Packet was trapped because it is required for
+ * the correct functioning of the control plane.
+ * For example, an ARP request packet. Trapped
+ * packets are injected to the kernel's Rx path,
+ * but not reported to drop monitor.
*/
enum devlink_trap_type {
DEVLINK_TRAP_TYPE_DROP,
DEVLINK_TRAP_TYPE_EXCEPTION,
+ DEVLINK_TRAP_TYPE_CONTROL,
};
enum {
diff --git a/net/core/devlink.c b/net/core/devlink.c
index d6298917b077..47c28e0f848f 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -8847,6 +8847,13 @@ void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb,
devlink_trap_stats_update(trap_item->stats, skb->len);
devlink_trap_stats_update(trap_item->group_item->stats, skb->len);
+ /* Control packets were not dropped by the device or encountered an
+ * exception during forwarding and therefore should not be reported to
+ * the kernel's drop monitor.
+ */
+ if (trap_item->trap->type == DEVLINK_TRAP_TYPE_CONTROL)
+ return;
+
devlink_trap_report_metadata_fill(&hw_metadata, trap_item,
in_devlink_port, fa_cookie);
net_dm_hw_report(skb, &hw_metadata);
--
2.26.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH net-next 06/14] devlink: Add layer 2 control packet traps
2020-05-29 18:36 [PATCH net-next 00/14] devlink: Add support for control packet traps Ido Schimmel
` (4 preceding siblings ...)
2020-05-29 18:36 ` [PATCH net-next 05/14] devlink: Add 'control' trap type Ido Schimmel
@ 2020-05-29 18:36 ` Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 07/14] devlink: Add layer 3 " Ido Schimmel
` (8 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: Ido Schimmel @ 2020-05-29 18:36 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, jiri, mlxsw, Ido Schimmel
From: Ido Schimmel <idosch@mellanox.com>
Add layer 2 control packet traps such as STP and IGMP query, so that
capable device 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>
---
.../networking/devlink/devlink-trap.rst | 45 +++++++++++++++++
include/net/devlink.h | 48 +++++++++++++++++++
net/core/devlink.c | 16 +++++++
3 files changed, 109 insertions(+)
diff --git a/Documentation/networking/devlink/devlink-trap.rst b/Documentation/networking/devlink/devlink-trap.rst
index 6c293cfa23ee..e9fc3c9d7d7a 100644
--- a/Documentation/networking/devlink/devlink-trap.rst
+++ b/Documentation/networking/devlink/devlink-trap.rst
@@ -252,6 +252,42 @@ be added to the following table:
* - ``egress_flow_action_drop``
- ``drop``
- Traps packets dropped during processing of egress flow action drop
+ * - ``stp``
+ - ``control``
+ - Traps STP packets
+ * - ``lacp``
+ - ``control``
+ - Traps LACP packets
+ * - ``lldp``
+ - ``control``
+ - Traps LLDP packets
+ * - ``igmp_query``
+ - ``control``
+ - Traps IGMP Membership Query packets
+ * - ``igmp_v1_report``
+ - ``control``
+ - Traps IGMP Version 1 Membership Report packets
+ * - ``igmp_v2_report``
+ - ``control``
+ - Traps IGMP Version 2 Membership Report packets
+ * - ``igmp_v3_report``
+ - ``control``
+ - Traps IGMP Version 3 Membership Report packets
+ * - ``igmp_v2_leave``
+ - ``control``
+ - Traps IGMP Version 2 Leave Group packets
+ * - ``mld_query``
+ - ``control``
+ - Traps MLD Multicast Listener Query packets
+ * - ``mld_v1_report``
+ - ``control``
+ - Traps MLD Version 1 Multicast Listener Report packets
+ * - ``mld_v2_report``
+ - ``control``
+ - Traps MLD Version 2 Multicast Listener Report packets
+ * - ``mld_v1_done``
+ - ``control``
+ - Traps MLD Version 1 Multicast Listener Done packets
Driver-specific Packet Traps
============================
@@ -299,6 +335,15 @@ narrow. The description of these groups must be added to the following table:
* - ``acl_drops``
- Contains packet traps for packets that were dropped by the device during
ACL processing
+ * - ``stp``
+ - Contains packet traps for STP packets
+ * - ``lacp``
+ - Contains packet traps for LACP packets
+ * - ``lldp``
+ - Contains packet traps for LLDP packets
+ * - ``mc_snooping``
+ - Contains packet traps for IGMP and MLD packets required for multicast
+ snooping
Packet Trap Policers
====================
diff --git a/include/net/devlink.h b/include/net/devlink.h
index 851388c9d795..c0061542ad65 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -645,6 +645,18 @@ enum devlink_trap_generic_id {
DEVLINK_TRAP_GENERIC_ID_OVERLAY_SMAC_MC,
DEVLINK_TRAP_GENERIC_ID_INGRESS_FLOW_ACTION_DROP,
DEVLINK_TRAP_GENERIC_ID_EGRESS_FLOW_ACTION_DROP,
+ DEVLINK_TRAP_GENERIC_ID_STP,
+ DEVLINK_TRAP_GENERIC_ID_LACP,
+ DEVLINK_TRAP_GENERIC_ID_LLDP,
+ DEVLINK_TRAP_GENERIC_ID_IGMP_QUERY,
+ DEVLINK_TRAP_GENERIC_ID_IGMP_V1_REPORT,
+ DEVLINK_TRAP_GENERIC_ID_IGMP_V2_REPORT,
+ DEVLINK_TRAP_GENERIC_ID_IGMP_V3_REPORT,
+ DEVLINK_TRAP_GENERIC_ID_IGMP_V2_LEAVE,
+ DEVLINK_TRAP_GENERIC_ID_MLD_QUERY,
+ DEVLINK_TRAP_GENERIC_ID_MLD_V1_REPORT,
+ DEVLINK_TRAP_GENERIC_ID_MLD_V2_REPORT,
+ DEVLINK_TRAP_GENERIC_ID_MLD_V1_DONE,
/* Add new generic trap IDs above */
__DEVLINK_TRAP_GENERIC_ID_MAX,
@@ -661,6 +673,10 @@ enum devlink_trap_group_generic_id {
DEVLINK_TRAP_GROUP_GENERIC_ID_BUFFER_DROPS,
DEVLINK_TRAP_GROUP_GENERIC_ID_TUNNEL_DROPS,
DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_DROPS,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_STP,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_LACP,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_LLDP,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_MC_SNOOPING,
/* Add new generic trap group IDs above */
__DEVLINK_TRAP_GROUP_GENERIC_ID_MAX,
@@ -726,6 +742,30 @@ enum devlink_trap_group_generic_id {
"ingress_flow_action_drop"
#define DEVLINK_TRAP_GENERIC_NAME_EGRESS_FLOW_ACTION_DROP \
"egress_flow_action_drop"
+#define DEVLINK_TRAP_GENERIC_NAME_STP \
+ "stp"
+#define DEVLINK_TRAP_GENERIC_NAME_LACP \
+ "lacp"
+#define DEVLINK_TRAP_GENERIC_NAME_LLDP \
+ "lldp"
+#define DEVLINK_TRAP_GENERIC_NAME_IGMP_QUERY \
+ "igmp_query"
+#define DEVLINK_TRAP_GENERIC_NAME_IGMP_V1_REPORT \
+ "igmp_v1_report"
+#define DEVLINK_TRAP_GENERIC_NAME_IGMP_V2_REPORT \
+ "igmp_v2_report"
+#define DEVLINK_TRAP_GENERIC_NAME_IGMP_V3_REPORT \
+ "igmp_v3_report"
+#define DEVLINK_TRAP_GENERIC_NAME_IGMP_V2_LEAVE \
+ "igmp_v2_leave"
+#define DEVLINK_TRAP_GENERIC_NAME_MLD_QUERY \
+ "mld_query"
+#define DEVLINK_TRAP_GENERIC_NAME_MLD_V1_REPORT \
+ "mld_v1_report"
+#define DEVLINK_TRAP_GENERIC_NAME_MLD_V2_REPORT \
+ "mld_v2_report"
+#define DEVLINK_TRAP_GENERIC_NAME_MLD_V1_DONE \
+ "mld_v1_done"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \
"l2_drops"
@@ -739,6 +779,14 @@ enum devlink_trap_group_generic_id {
"tunnel_drops"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_DROPS \
"acl_drops"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_STP \
+ "stp"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_LACP \
+ "lacp"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_LLDP \
+ "lldp"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_MC_SNOOPING \
+ "mc_snooping"
#define DEVLINK_TRAP_GENERIC(_type, _init_action, _id, _group_id, \
_metadata_cap) \
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 47c28e0f848f..c91ef1b5f738 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -8495,6 +8495,18 @@ static const struct devlink_trap devlink_trap_generic[] = {
DEVLINK_TRAP(OVERLAY_SMAC_MC, DROP),
DEVLINK_TRAP(INGRESS_FLOW_ACTION_DROP, DROP),
DEVLINK_TRAP(EGRESS_FLOW_ACTION_DROP, DROP),
+ DEVLINK_TRAP(STP, CONTROL),
+ DEVLINK_TRAP(LACP, CONTROL),
+ DEVLINK_TRAP(LLDP, CONTROL),
+ DEVLINK_TRAP(IGMP_QUERY, CONTROL),
+ DEVLINK_TRAP(IGMP_V1_REPORT, CONTROL),
+ DEVLINK_TRAP(IGMP_V2_REPORT, CONTROL),
+ DEVLINK_TRAP(IGMP_V3_REPORT, CONTROL),
+ DEVLINK_TRAP(IGMP_V2_LEAVE, CONTROL),
+ DEVLINK_TRAP(MLD_QUERY, CONTROL),
+ DEVLINK_TRAP(MLD_V1_REPORT, CONTROL),
+ DEVLINK_TRAP(MLD_V2_REPORT, CONTROL),
+ DEVLINK_TRAP(MLD_V1_DONE, CONTROL),
};
#define DEVLINK_TRAP_GROUP(_id) \
@@ -8510,6 +8522,10 @@ static const struct devlink_trap_group devlink_trap_group_generic[] = {
DEVLINK_TRAP_GROUP(BUFFER_DROPS),
DEVLINK_TRAP_GROUP(TUNNEL_DROPS),
DEVLINK_TRAP_GROUP(ACL_DROPS),
+ DEVLINK_TRAP_GROUP(STP),
+ DEVLINK_TRAP_GROUP(LACP),
+ DEVLINK_TRAP_GROUP(LLDP),
+ DEVLINK_TRAP_GROUP(MC_SNOOPING),
};
static int devlink_trap_generic_verify(const struct devlink_trap *trap)
--
2.26.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH net-next 07/14] devlink: Add layer 3 control packet traps
2020-05-29 18:36 [PATCH net-next 00/14] devlink: Add support for control packet traps Ido Schimmel
` (5 preceding siblings ...)
2020-05-29 18:36 ` [PATCH net-next 06/14] devlink: Add layer 2 control packet traps Ido Schimmel
@ 2020-05-29 18:36 ` Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 08/14] devlink: Add ACL " Ido Schimmel
` (7 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: Ido Schimmel @ 2020-05-29 18:36 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, jiri, mlxsw, Ido Schimmel
From: Ido Schimmel <idosch@mellanox.com>
Add layer 3 control packet traps such as ARP and DHCP, so that capable
device 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>
---
.../networking/devlink/devlink-trap.rst | 143 ++++++++++++++++++
include/net/devlink.h | 126 +++++++++++++++
net/core/devlink.c | 42 +++++
3 files changed, 311 insertions(+)
diff --git a/Documentation/networking/devlink/devlink-trap.rst b/Documentation/networking/devlink/devlink-trap.rst
index e9fc3c9d7d7a..621b634b16be 100644
--- a/Documentation/networking/devlink/devlink-trap.rst
+++ b/Documentation/networking/devlink/devlink-trap.rst
@@ -288,6 +288,115 @@ be added to the following table:
* - ``mld_v1_done``
- ``control``
- Traps MLD Version 1 Multicast Listener Done packets
+ * - ``ipv4_dhcp``
+ - ``control``
+ - Traps IPv4 DHCP packets
+ * - ``ipv6_dhcp``
+ - ``control``
+ - Traps IPv6 DHCP packets
+ * - ``arp_request``
+ - ``control``
+ - Traps ARP request packets
+ * - ``arp_response``
+ - ``control``
+ - Traps ARP response packets
+ * - ``arp_overlay``
+ - ``control``
+ - Traps NVE-decapsulated ARP packets that reached the overlay network.
+ This is required, for example, when the address that needs to be
+ resolved is a local address
+ * - ``ipv6_neigh_solicit``
+ - ``control``
+ - Traps IPv6 Neighbour Solicitation packets
+ * - ``ipv6_neigh_advert``
+ - ``control``
+ - Traps IPv6 Neighbour Advertisement packets
+ * - ``ipv4_bfd``
+ - ``control``
+ - Traps IPv4 BFD packets
+ * - ``ipv6_bfd``
+ - ``control``
+ - Traps IPv6 BFD packets
+ * - ``ipv4_ospf``
+ - ``control``
+ - Traps IPv4 OSPF packets
+ * - ``ipv6_ospf``
+ - ``control``
+ - Traps IPv6 OSPF packets
+ * - ``ipv4_bgp``
+ - ``control``
+ - Traps IPv4 BGP packets
+ * - ``ipv6_bgp``
+ - ``control``
+ - Traps IPv6 BGP packets
+ * - ``ipv4_vrrp``
+ - ``control``
+ - Traps IPv4 VRRP packets
+ * - ``ipv6_vrrp``
+ - ``control``
+ - Traps IPv6 VRRP packets
+ * - ``ipv4_pim``
+ - ``control``
+ - Traps IPv4 PIM packets
+ * - ``ipv6_pim``
+ - ``control``
+ - Traps IPv6 PIM packets
+ * - ``uc_loopback``
+ - ``control``
+ - Traps unicast packets that need to be routed through the same layer 3
+ interface from which they were received. Such packets are routed by the
+ kernel, but also cause it to potentially generate ICMP redirect packets
+ * - ``local_route``
+ - ``control``
+ - Traps unicast packets that hit a local route and need to be locally
+ delivered
+ * - ``external_route``
+ - ``control``
+ - Traps packets that should be routed through an external interface (e.g.,
+ management interface) that does not belong to the same device (e.g.,
+ switch ASIC) as the ingress interface
+ * - ``ipv6_uc_dip_link_local_scope``
+ - ``control``
+ - Traps unicast IPv6 packets that need to be routed and have a destination
+ IP address with a link-local scope (i.e., fe80::/10). The trap allows
+ device drivers to avoid programming link-local routes, but still receive
+ packets for local delivery
+ * - ``ipv6_dip_all_nodes``
+ - ``control``
+ - Traps IPv6 packets that their destination IP address is the "All Nodes
+ Address" (i.e., ff02::1)
+ * - ``ipv6_dip_all_routers``
+ - ``control``
+ - Traps IPv6 packets that their destination IP address is the "All Routers
+ Address" (i.e., ff02::2)
+ * - ``ipv6_router_solicit``
+ - ``control``
+ - Traps IPv6 Router Solicitation packets
+ * - ``ipv6_router_advert``
+ - ``control``
+ - Traps IPv6 Router Advertisement packets
+ * - ``ipv6_redirect``
+ - ``control``
+ - Traps IPv6 Redirect Message packets
+ * - ``ipv4_router_alert``
+ - ``control``
+ - Traps IPv4 packets that need to be routed and include the Router Alert
+ option. Such packets need to be locally delivered to raw sockets that
+ have the IP_ROUTER_ALERT socket option set
+ * - ``ipv6_router_alert``
+ - ``control``
+ - Traps IPv6 packets that need to be routed and include the Router Alert
+ option in their Hop-by-Hop extension header. Such packets need to be
+ locally delivered to raw sockets that have the IPV6_ROUTER_ALERT socket
+ option set
+ * - ``ptp_event``
+ - ``control``
+ - Traps PTP time-critical event messages (Sync, Delay_req, Pdelay_Req and
+ Pdelay_Resp)
+ * - ``ptp_general``
+ - ``control``
+ - Traps PTP general messages (Announce, Follow_Up, Delay_Resp,
+ Pdelay_Resp_Follow_Up, management and signaling)
Driver-specific Packet Traps
============================
@@ -344,6 +453,40 @@ narrow. The description of these groups must be added to the following table:
* - ``mc_snooping``
- Contains packet traps for IGMP and MLD packets required for multicast
snooping
+ * - ``dhcp``
+ - Contains packet traps for DHCP packets
+ * - ``neigh_discovery``
+ - Contains packet traps for neighbour discovery packets (e.g., ARP, IPv6
+ ND)
+ * - ``bfd``
+ - Contains packet traps for BFD packets
+ * - ``ospf``
+ - Contains packet traps for OSPF packets
+ * - ``bgp``
+ - Contains packet traps for BGP packets
+ * - ``vrrp``
+ - Contains packet traps for VRRP packets
+ * - ``pim``
+ - Contains packet traps for PIM packets
+ * - ``uc_loopback``
+ - Contains a packet trap for unicast loopback packets (i.e.,
+ ``uc_loopback``). This trap is singled-out because in cases such as
+ one-armed router it will be constantly triggered. To limit the impact on
+ the CPU usage, a packet trap policer with a low rate can be bound to the
+ group without affecting other traps
+ * - ``local_delivery``
+ - Contains packet traps for packets that should be locally delivered after
+ routing, but do not match more specific packet traps (e.g.,
+ ``ipv4_bgp``)
+ * - ``ipv6``
+ - Contains packet traps for various IPv6 control packets (e.g., Router
+ Advertisements)
+ * - ``ptp_event``
+ - Contains packet traps for PTP time-critical event messages (Sync,
+ Delay_req, Pdelay_Req and Pdelay_Resp)
+ * - ``ptp_general``
+ - Contains packet traps for PTP general messages (Announce, Follow_Up,
+ Delay_Resp, Pdelay_Resp_Follow_Up, management and signaling)
Packet Trap Policers
====================
diff --git a/include/net/devlink.h b/include/net/devlink.h
index c0061542ad65..05a45dea976b 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -657,6 +657,36 @@ enum devlink_trap_generic_id {
DEVLINK_TRAP_GENERIC_ID_MLD_V1_REPORT,
DEVLINK_TRAP_GENERIC_ID_MLD_V2_REPORT,
DEVLINK_TRAP_GENERIC_ID_MLD_V1_DONE,
+ DEVLINK_TRAP_GENERIC_ID_IPV4_DHCP,
+ DEVLINK_TRAP_GENERIC_ID_IPV6_DHCP,
+ DEVLINK_TRAP_GENERIC_ID_ARP_REQUEST,
+ DEVLINK_TRAP_GENERIC_ID_ARP_RESPONSE,
+ DEVLINK_TRAP_GENERIC_ID_ARP_OVERLAY,
+ DEVLINK_TRAP_GENERIC_ID_IPV6_NEIGH_SOLICIT,
+ DEVLINK_TRAP_GENERIC_ID_IPV6_NEIGH_ADVERT,
+ DEVLINK_TRAP_GENERIC_ID_IPV4_BFD,
+ DEVLINK_TRAP_GENERIC_ID_IPV6_BFD,
+ DEVLINK_TRAP_GENERIC_ID_IPV4_OSPF,
+ DEVLINK_TRAP_GENERIC_ID_IPV6_OSPF,
+ DEVLINK_TRAP_GENERIC_ID_IPV4_BGP,
+ DEVLINK_TRAP_GENERIC_ID_IPV6_BGP,
+ DEVLINK_TRAP_GENERIC_ID_IPV4_VRRP,
+ DEVLINK_TRAP_GENERIC_ID_IPV6_VRRP,
+ DEVLINK_TRAP_GENERIC_ID_IPV4_PIM,
+ DEVLINK_TRAP_GENERIC_ID_IPV6_PIM,
+ DEVLINK_TRAP_GENERIC_ID_UC_LB,
+ DEVLINK_TRAP_GENERIC_ID_LOCAL_ROUTE,
+ DEVLINK_TRAP_GENERIC_ID_EXTERNAL_ROUTE,
+ DEVLINK_TRAP_GENERIC_ID_IPV6_UC_DIP_LINK_LOCAL_SCOPE,
+ DEVLINK_TRAP_GENERIC_ID_IPV6_DIP_ALL_NODES,
+ DEVLINK_TRAP_GENERIC_ID_IPV6_DIP_ALL_ROUTERS,
+ DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_SOLICIT,
+ DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_ADVERT,
+ DEVLINK_TRAP_GENERIC_ID_IPV6_REDIRECT,
+ DEVLINK_TRAP_GENERIC_ID_IPV4_ROUTER_ALERT,
+ DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_ALERT,
+ DEVLINK_TRAP_GENERIC_ID_PTP_EVENT,
+ DEVLINK_TRAP_GENERIC_ID_PTP_GENERAL,
/* Add new generic trap IDs above */
__DEVLINK_TRAP_GENERIC_ID_MAX,
@@ -677,6 +707,18 @@ enum devlink_trap_group_generic_id {
DEVLINK_TRAP_GROUP_GENERIC_ID_LACP,
DEVLINK_TRAP_GROUP_GENERIC_ID_LLDP,
DEVLINK_TRAP_GROUP_GENERIC_ID_MC_SNOOPING,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_DHCP,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_NEIGH_DISCOVERY,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_BFD,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_OSPF,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_BGP,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_VRRP,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_PIM,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_UC_LB,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_LOCAL_DELIVERY,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_IPV6,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_PTP_EVENT,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_PTP_GENERAL,
/* Add new generic trap group IDs above */
__DEVLINK_TRAP_GROUP_GENERIC_ID_MAX,
@@ -766,6 +808,66 @@ enum devlink_trap_group_generic_id {
"mld_v2_report"
#define DEVLINK_TRAP_GENERIC_NAME_MLD_V1_DONE \
"mld_v1_done"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV4_DHCP \
+ "ipv4_dhcp"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV6_DHCP \
+ "ipv6_dhcp"
+#define DEVLINK_TRAP_GENERIC_NAME_ARP_REQUEST \
+ "arp_request"
+#define DEVLINK_TRAP_GENERIC_NAME_ARP_RESPONSE \
+ "arp_response"
+#define DEVLINK_TRAP_GENERIC_NAME_ARP_OVERLAY \
+ "arp_overlay"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV6_NEIGH_SOLICIT \
+ "ipv6_neigh_solicit"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV6_NEIGH_ADVERT \
+ "ipv6_neigh_advert"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV4_BFD \
+ "ipv4_bfd"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV6_BFD \
+ "ipv6_bfd"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV4_OSPF \
+ "ipv4_ospf"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV6_OSPF \
+ "ipv6_ospf"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV4_BGP \
+ "ipv4_bgp"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV6_BGP \
+ "ipv6_bgp"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV4_VRRP \
+ "ipv4_vrrp"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV6_VRRP \
+ "ipv6_vrrp"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV4_PIM \
+ "ipv4_pim"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV6_PIM \
+ "ipv6_pim"
+#define DEVLINK_TRAP_GENERIC_NAME_UC_LB \
+ "uc_loopback"
+#define DEVLINK_TRAP_GENERIC_NAME_LOCAL_ROUTE \
+ "local_route"
+#define DEVLINK_TRAP_GENERIC_NAME_EXTERNAL_ROUTE \
+ "external_route"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV6_UC_DIP_LINK_LOCAL_SCOPE \
+ "ipv6_uc_dip_link_local_scope"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV6_DIP_ALL_NODES \
+ "ipv6_dip_all_nodes"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV6_DIP_ALL_ROUTERS \
+ "ipv6_dip_all_routers"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_SOLICIT \
+ "ipv6_router_solicit"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_ADVERT \
+ "ipv6_router_advert"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV6_REDIRECT \
+ "ipv6_redirect"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV4_ROUTER_ALERT \
+ "ipv4_router_alert"
+#define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_ALERT \
+ "ipv6_router_alert"
+#define DEVLINK_TRAP_GENERIC_NAME_PTP_EVENT \
+ "ptp_event"
+#define DEVLINK_TRAP_GENERIC_NAME_PTP_GENERAL \
+ "ptp_general"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \
"l2_drops"
@@ -787,6 +889,30 @@ enum devlink_trap_group_generic_id {
"lldp"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_MC_SNOOPING \
"mc_snooping"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_DHCP \
+ "dhcp"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_NEIGH_DISCOVERY \
+ "neigh_discovery"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_BFD \
+ "bfd"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_OSPF \
+ "ospf"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_BGP \
+ "bgp"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_VRRP \
+ "vrrp"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_PIM \
+ "pim"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_UC_LB \
+ "uc_loopback"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_LOCAL_DELIVERY \
+ "local_delivery"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_IPV6 \
+ "ipv6"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_PTP_EVENT \
+ "ptp_event"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_PTP_GENERAL \
+ "ptp_general"
#define DEVLINK_TRAP_GENERIC(_type, _init_action, _id, _group_id, \
_metadata_cap) \
diff --git a/net/core/devlink.c b/net/core/devlink.c
index c91ef1b5f738..f32854c3d0e7 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -8507,6 +8507,36 @@ static const struct devlink_trap devlink_trap_generic[] = {
DEVLINK_TRAP(MLD_V1_REPORT, CONTROL),
DEVLINK_TRAP(MLD_V2_REPORT, CONTROL),
DEVLINK_TRAP(MLD_V1_DONE, CONTROL),
+ DEVLINK_TRAP(IPV4_DHCP, CONTROL),
+ DEVLINK_TRAP(IPV6_DHCP, CONTROL),
+ DEVLINK_TRAP(ARP_REQUEST, CONTROL),
+ DEVLINK_TRAP(ARP_RESPONSE, CONTROL),
+ DEVLINK_TRAP(ARP_OVERLAY, CONTROL),
+ DEVLINK_TRAP(IPV6_NEIGH_SOLICIT, CONTROL),
+ DEVLINK_TRAP(IPV6_NEIGH_ADVERT, CONTROL),
+ DEVLINK_TRAP(IPV4_BFD, CONTROL),
+ DEVLINK_TRAP(IPV6_BFD, CONTROL),
+ DEVLINK_TRAP(IPV4_OSPF, CONTROL),
+ DEVLINK_TRAP(IPV6_OSPF, CONTROL),
+ DEVLINK_TRAP(IPV4_BGP, CONTROL),
+ DEVLINK_TRAP(IPV6_BGP, CONTROL),
+ DEVLINK_TRAP(IPV4_VRRP, CONTROL),
+ DEVLINK_TRAP(IPV6_VRRP, CONTROL),
+ DEVLINK_TRAP(IPV4_PIM, CONTROL),
+ DEVLINK_TRAP(IPV6_PIM, CONTROL),
+ DEVLINK_TRAP(UC_LB, CONTROL),
+ DEVLINK_TRAP(LOCAL_ROUTE, CONTROL),
+ DEVLINK_TRAP(EXTERNAL_ROUTE, CONTROL),
+ DEVLINK_TRAP(IPV6_UC_DIP_LINK_LOCAL_SCOPE, CONTROL),
+ DEVLINK_TRAP(IPV6_DIP_ALL_NODES, CONTROL),
+ DEVLINK_TRAP(IPV6_DIP_ALL_ROUTERS, CONTROL),
+ DEVLINK_TRAP(IPV6_ROUTER_SOLICIT, CONTROL),
+ DEVLINK_TRAP(IPV6_ROUTER_ADVERT, CONTROL),
+ DEVLINK_TRAP(IPV6_REDIRECT, CONTROL),
+ DEVLINK_TRAP(IPV4_ROUTER_ALERT, CONTROL),
+ DEVLINK_TRAP(IPV6_ROUTER_ALERT, CONTROL),
+ DEVLINK_TRAP(PTP_EVENT, CONTROL),
+ DEVLINK_TRAP(PTP_GENERAL, CONTROL),
};
#define DEVLINK_TRAP_GROUP(_id) \
@@ -8526,6 +8556,18 @@ static const struct devlink_trap_group devlink_trap_group_generic[] = {
DEVLINK_TRAP_GROUP(LACP),
DEVLINK_TRAP_GROUP(LLDP),
DEVLINK_TRAP_GROUP(MC_SNOOPING),
+ DEVLINK_TRAP_GROUP(DHCP),
+ DEVLINK_TRAP_GROUP(NEIGH_DISCOVERY),
+ DEVLINK_TRAP_GROUP(BFD),
+ DEVLINK_TRAP_GROUP(OSPF),
+ DEVLINK_TRAP_GROUP(BGP),
+ DEVLINK_TRAP_GROUP(VRRP),
+ DEVLINK_TRAP_GROUP(PIM),
+ DEVLINK_TRAP_GROUP(UC_LB),
+ DEVLINK_TRAP_GROUP(LOCAL_DELIVERY),
+ DEVLINK_TRAP_GROUP(IPV6),
+ DEVLINK_TRAP_GROUP(PTP_EVENT),
+ DEVLINK_TRAP_GROUP(PTP_GENERAL),
};
static int devlink_trap_generic_verify(const struct devlink_trap *trap)
--
2.26.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH net-next 08/14] devlink: Add ACL control packet traps
2020-05-29 18:36 [PATCH net-next 00/14] devlink: Add support for control packet traps Ido Schimmel
` (6 preceding siblings ...)
2020-05-29 18:36 ` [PATCH net-next 07/14] devlink: Add layer 3 " Ido Schimmel
@ 2020-05-29 18:36 ` Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 09/14] netdevsim: Register control traps Ido Schimmel
` (6 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: Ido Schimmel @ 2020-05-29 18:36 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, jiri, mlxsw, Ido Schimmel
From: Ido Schimmel <idosch@mellanox.com>
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>
---
Documentation/networking/devlink/devlink-trap.rst | 14 ++++++++++++++
include/net/devlink.h | 12 ++++++++++++
net/core/devlink.c | 4 ++++
3 files changed, 30 insertions(+)
diff --git a/Documentation/networking/devlink/devlink-trap.rst b/Documentation/networking/devlink/devlink-trap.rst
index 621b634b16be..1e3f3ffee248 100644
--- a/Documentation/networking/devlink/devlink-trap.rst
+++ b/Documentation/networking/devlink/devlink-trap.rst
@@ -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
====================
diff --git a/include/net/devlink.h b/include/net/devlink.h
index 05a45dea976b..1df6dfec26c2 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -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) \
diff --git a/net/core/devlink.c b/net/core/devlink.c
index f32854c3d0e7..2cafbc808b09 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -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)
--
2.26.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH net-next 09/14] netdevsim: Register control traps
2020-05-29 18:36 [PATCH net-next 00/14] devlink: Add support for control packet traps Ido Schimmel
` (7 preceding siblings ...)
2020-05-29 18:36 ` [PATCH net-next 08/14] devlink: Add ACL " Ido Schimmel
@ 2020-05-29 18:36 ` Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 10/14] mlxsw: spectrum_trap: Factor out common Rx listener function Ido Schimmel
` (5 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: Ido Schimmel @ 2020-05-29 18:36 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, jiri, mlxsw, Ido Schimmel
From: Ido Schimmel <idosch@mellanox.com>
Register two control traps with devlink. The existing selftest at
tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh iterates
over all registered traps and checks that the action of non-drop traps
cannot be changed. Up until now only exception traps were tested, now
control traps will be tested as well.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
---
drivers/net/netdevsim/dev.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c
index 09d947eff980..ec6b6f7818ac 100644
--- a/drivers/net/netdevsim/dev.c
+++ b/drivers/net/netdevsim/dev.c
@@ -431,6 +431,10 @@ enum {
DEVLINK_TRAP_GENERIC(EXCEPTION, TRAP, _id, \
DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
NSIM_TRAP_METADATA)
+#define NSIM_TRAP_CONTROL(_id, _group_id, _action) \
+ DEVLINK_TRAP_GENERIC(CONTROL, _action, _id, \
+ DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
+ NSIM_TRAP_METADATA)
#define NSIM_TRAP_DRIVER_EXCEPTION(_id, _group_id) \
DEVLINK_TRAP_DRIVER(EXCEPTION, TRAP, NSIM_TRAP_ID_##_id, \
NSIM_TRAP_NAME_##_id, \
@@ -461,6 +465,7 @@ static const struct devlink_trap_group nsim_trap_groups_arr[] = {
DEVLINK_TRAP_GROUP_GENERIC(L3_EXCEPTIONS, 1),
DEVLINK_TRAP_GROUP_GENERIC(BUFFER_DROPS, 2),
DEVLINK_TRAP_GROUP_GENERIC(ACL_DROPS, 3),
+ DEVLINK_TRAP_GROUP_GENERIC(MC_SNOOPING, 3),
};
static const struct devlink_trap nsim_traps_arr[] = {
@@ -478,6 +483,8 @@ static const struct devlink_trap nsim_traps_arr[] = {
DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE),
NSIM_TRAP_DROP_EXT(EGRESS_FLOW_ACTION_DROP, ACL_DROPS,
DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE),
+ NSIM_TRAP_CONTROL(IGMP_QUERY, MC_SNOOPING, MIRROR),
+ NSIM_TRAP_CONTROL(IGMP_V1_REPORT, MC_SNOOPING, TRAP),
};
#define NSIM_TRAP_L4_DATA_LEN 100
--
2.26.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH net-next 10/14] mlxsw: spectrum_trap: Factor out common Rx listener function
2020-05-29 18:36 [PATCH net-next 00/14] devlink: Add support for control packet traps Ido Schimmel
` (8 preceding siblings ...)
2020-05-29 18:36 ` [PATCH net-next 09/14] netdevsim: Register control traps Ido Schimmel
@ 2020-05-29 18:36 ` Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 11/14] mlxsw: spectrum_trap: Register layer 2 control traps Ido Schimmel
` (4 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: Ido Schimmel @ 2020-05-29 18:36 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, jiri, mlxsw, Ido Schimmel
From: Ido Schimmel <idosch@mellanox.com>
We currently have an Rx listener function for exception traps that marks
received skbs with 'offload_fwd_mark' and injects them to the kernel's
Rx path. The marking is done because all these exceptions occur during
L3 forwarding, after the packets were potentially flooded at L2.
A subsequent patch will add support for control traps. Packets received
via some of these control traps need different handling:
1. Packets might not need to be marked with 'offload_fwd_mark'. For
example, if packet was trapped before L2 forwarding
2. Packets might not need to be injected to the kernel's Rx path. For
example, sampled packets are reported to user space via the psample
module
Factor out a common Rx listener function that only reports trapped
packets to devlink. Call it from mlxsw_sp_rx_no_mark_listener() and
mlxsw_sp_rx_mark_listener() that will inject the packets to the kernel's
Rx path, without and with the marking, respectively.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
---
.../ethernet/mellanox/mlxsw/spectrum_trap.c | 29 +++++++++++++++----
1 file changed, 24 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
index dc2217f1a07f..206751963a4f 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
@@ -125,8 +125,8 @@ static void mlxsw_sp_rx_acl_drop_listener(struct sk_buff *skb, u8 local_port,
consume_skb(skb);
}
-static void mlxsw_sp_rx_exception_listener(struct sk_buff *skb, u8 local_port,
- void *trap_ctx)
+static int __mlxsw_sp_rx_no_mark_listener(struct sk_buff *skb, u8 local_port,
+ void *trap_ctx)
{
struct devlink_port *in_devlink_port;
struct mlxsw_sp_port *mlxsw_sp_port;
@@ -139,7 +139,7 @@ static void mlxsw_sp_rx_exception_listener(struct sk_buff *skb, u8 local_port,
err = mlxsw_sp_rx_listener(mlxsw_sp, skb, local_port, mlxsw_sp_port);
if (err)
- return;
+ return err;
devlink = priv_to_devlink(mlxsw_sp->core);
in_devlink_port = mlxsw_core_port_devlink_port_get(mlxsw_sp->core,
@@ -147,10 +147,29 @@ static void mlxsw_sp_rx_exception_listener(struct sk_buff *skb, u8 local_port,
skb_push(skb, ETH_HLEN);
devlink_trap_report(devlink, skb, trap_ctx, in_devlink_port, NULL);
skb_pull(skb, ETH_HLEN);
- skb->offload_fwd_mark = 1;
+
+ return 0;
+}
+
+static void mlxsw_sp_rx_no_mark_listener(struct sk_buff *skb, u8 local_port,
+ void *trap_ctx)
+{
+ int err;
+
+ err = __mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx);
+ if (err)
+ return;
+
netif_receive_skb(skb);
}
+static void mlxsw_sp_rx_mark_listener(struct sk_buff *skb, u8 local_port,
+ void *trap_ctx)
+{
+ skb->offload_fwd_mark = 1;
+ mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx);
+}
+
#define MLXSW_SP_TRAP_DROP(_id, _group_id) \
DEVLINK_TRAP_GENERIC(DROP, DROP, _id, \
DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
@@ -183,7 +202,7 @@ static void mlxsw_sp_rx_exception_listener(struct sk_buff *skb, u8 local_port,
SET_FW_DEFAULT, SP_##_dis_group_id)
#define MLXSW_SP_RXL_EXCEPTION(_id, _group_id, _action) \
- MLXSW_RXL(mlxsw_sp_rx_exception_listener, _id, \
+ MLXSW_RXL(mlxsw_sp_rx_mark_listener, _id, \
_action, false, SP_##_group_id, SET_FW_DEFAULT)
#define MLXSW_SP_TRAP_POLICER(_id, _rate, _burst) \
--
2.26.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH net-next 11/14] mlxsw: spectrum_trap: Register layer 2 control traps
2020-05-29 18:36 [PATCH net-next 00/14] devlink: Add support for control packet traps Ido Schimmel
` (9 preceding siblings ...)
2020-05-29 18:36 ` [PATCH net-next 10/14] mlxsw: spectrum_trap: Factor out common Rx listener function Ido Schimmel
@ 2020-05-29 18:36 ` Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 12/14] mlxsw: spectrum_trap: Register layer 3 " Ido Schimmel
` (3 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: Ido Schimmel @ 2020-05-29 18:36 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, jiri, mlxsw, Ido Schimmel
From: Ido Schimmel <idosch@mellanox.com>
In a similar fashion to other traps, register layer 2 control traps with
devlink.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
---
.../net/ethernet/mellanox/mlxsw/spectrum.c | 37 +----
.../net/ethernet/mellanox/mlxsw/spectrum.h | 2 +
.../ethernet/mellanox/mlxsw/spectrum_trap.c | 151 ++++++++++++++++++
3 files changed, 159 insertions(+), 31 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index c598ae9ed106..74925826a2cb 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -4022,6 +4022,12 @@ static void mlxsw_sp_rx_listener_ptp(struct sk_buff *skb, u8 local_port,
mlxsw_sp->ptp_ops->receive(mlxsw_sp, skb, local_port);
}
+void mlxsw_sp_ptp_receive(struct mlxsw_sp *mlxsw_sp, struct sk_buff *skb,
+ u8 local_port)
+{
+ mlxsw_sp->ptp_ops->receive(mlxsw_sp, skb, local_port);
+}
+
#define MLXSW_SP_RXL_NO_MARK(_trap_id, _action, _trap_group, _is_ctrl) \
MLXSW_RXL(mlxsw_sp_rx_listener_no_mark_func, _trap_id, _action, \
_is_ctrl, SP_##_trap_group, DISCARD)
@@ -4041,26 +4047,9 @@ static const struct mlxsw_listener mlxsw_sp_listener[] = {
/* Events */
MLXSW_SP_EVENTL(mlxsw_sp_pude_event_func, PUDE),
/* L2 traps */
- MLXSW_SP_RXL_NO_MARK(STP, TRAP_TO_CPU, STP, true),
- MLXSW_SP_RXL_NO_MARK(LACP, TRAP_TO_CPU, LACP, true),
- MLXSW_RXL(mlxsw_sp_rx_listener_ptp, LLDP, TRAP_TO_CPU,
- false, SP_LLDP, DISCARD),
- MLXSW_SP_RXL_MARK(IGMP_QUERY, MIRROR_TO_CPU, MC_SNOOPING, false),
- MLXSW_SP_RXL_NO_MARK(IGMP_V1_REPORT, TRAP_TO_CPU, MC_SNOOPING, false),
- MLXSW_SP_RXL_NO_MARK(IGMP_V2_REPORT, TRAP_TO_CPU, MC_SNOOPING, false),
- MLXSW_SP_RXL_NO_MARK(IGMP_V2_LEAVE, TRAP_TO_CPU, MC_SNOOPING, false),
- MLXSW_SP_RXL_NO_MARK(IGMP_V3_REPORT, TRAP_TO_CPU, MC_SNOOPING, false),
MLXSW_SP_RXL_MARK(ARPBC, MIRROR_TO_CPU, NEIGH_DISCOVERY, false),
MLXSW_SP_RXL_MARK(ARPUC, MIRROR_TO_CPU, NEIGH_DISCOVERY, false),
MLXSW_SP_RXL_NO_MARK(FID_MISS, TRAP_TO_CPU, FID_MISS, false),
- MLXSW_SP_RXL_MARK(IPV6_MLDV12_LISTENER_QUERY, MIRROR_TO_CPU,
- MC_SNOOPING, false),
- MLXSW_SP_RXL_NO_MARK(IPV6_MLDV1_LISTENER_REPORT, TRAP_TO_CPU,
- MC_SNOOPING, false),
- MLXSW_SP_RXL_NO_MARK(IPV6_MLDV1_LISTENER_DONE, TRAP_TO_CPU, MC_SNOOPING,
- false),
- MLXSW_SP_RXL_NO_MARK(IPV6_MLDV2_LISTENER_REPORT, TRAP_TO_CPU,
- MC_SNOOPING, false),
/* L3 traps */
MLXSW_SP_RXL_L3_MARK(LBERROR, MIRROR_TO_CPU, LBERROR, false),
MLXSW_SP_RXL_MARK(IP2ME, TRAP_TO_CPU, IP2ME, false),
@@ -4149,9 +4138,6 @@ static int mlxsw_sp_cpu_policers_set(struct mlxsw_core *mlxsw_core)
for (i = 0; i < max_cpu_policers; i++) {
is_bytes = false;
switch (i) {
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_STP:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_LACP:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_LLDP:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_PIM:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_LBERROR:
@@ -4159,10 +4145,6 @@ static int mlxsw_sp_cpu_policers_set(struct mlxsw_core *mlxsw_core)
rate = 128;
burst_size = 7;
break;
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_MC_SNOOPING:
- rate = 16 * 1024;
- burst_size = 10;
- break;
case MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_NEIGH_DISCOVERY:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP:
@@ -4225,9 +4207,6 @@ static int mlxsw_sp_trap_groups_set(struct mlxsw_core *mlxsw_core)
for (i = 0; i < max_trap_groups; i++) {
policer_id = i;
switch (i) {
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_STP:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_LACP:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_LLDP:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_PIM:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP0:
@@ -4241,10 +4220,6 @@ static int mlxsw_sp_trap_groups_set(struct mlxsw_core *mlxsw_core)
priority = 4;
tc = 4;
break;
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_MC_SNOOPING:
- priority = 3;
- tc = 3;
- break;
case MLXSW_REG_HTGT_TRAP_GROUP_SP_NEIGH_DISCOVERY:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6:
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
index 147a5634244b..9d4dfb22cb7a 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
@@ -451,6 +451,8 @@ extern struct notifier_block mlxsw_sp_switchdev_notifier;
/* spectrum.c */
void mlxsw_sp_rx_listener_no_mark_func(struct sk_buff *skb,
u8 local_port, void *priv);
+void mlxsw_sp_ptp_receive(struct mlxsw_sp *mlxsw_sp, struct sk_buff *skb,
+ u8 local_port);
int mlxsw_sp_port_speed_get(struct mlxsw_sp_port *mlxsw_sp_port, u32 *speed);
int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port,
enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
index 206751963a4f..32b77d5a917d 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
@@ -170,6 +170,23 @@ static void mlxsw_sp_rx_mark_listener(struct sk_buff *skb, u8 local_port,
mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx);
}
+static void mlxsw_sp_rx_ptp_listener(struct sk_buff *skb, u8 local_port,
+ void *trap_ctx)
+{
+ struct mlxsw_sp *mlxsw_sp = devlink_trap_ctx_priv(trap_ctx);
+ int err;
+
+ err = __mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx);
+ if (err)
+ return;
+
+ /* The PTP handler expects skb->data to point to the start of the
+ * Ethernet header.
+ */
+ skb_push(skb, ETH_HLEN);
+ mlxsw_sp_ptp_receive(mlxsw_sp, skb, local_port);
+}
+
#define MLXSW_SP_TRAP_DROP(_id, _group_id) \
DEVLINK_TRAP_GENERIC(DROP, DROP, _id, \
DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
@@ -191,6 +208,11 @@ static void mlxsw_sp_rx_mark_listener(struct sk_buff *skb, u8 local_port,
DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
MLXSW_SP_TRAP_METADATA)
+#define MLXSW_SP_TRAP_CONTROL(_id, _group_id, _action) \
+ DEVLINK_TRAP_GENERIC(CONTROL, _action, _id, \
+ DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
+ MLXSW_SP_TRAP_METADATA)
+
#define MLXSW_SP_RXL_DISCARD(_id, _group_id) \
MLXSW_RXL_DIS(mlxsw_sp_rx_drop_listener, DISCARD_##_id, \
TRAP_EXCEPTION_TO_CPU, false, SP_##_group_id, \
@@ -205,6 +227,14 @@ static void mlxsw_sp_rx_mark_listener(struct sk_buff *skb, u8 local_port,
MLXSW_RXL(mlxsw_sp_rx_mark_listener, _id, \
_action, false, SP_##_group_id, SET_FW_DEFAULT)
+#define MLXSW_SP_RXL_NO_MARK(_id, _group_id, _action, _is_ctrl) \
+ MLXSW_RXL(mlxsw_sp_rx_no_mark_listener, _id, _action, \
+ _is_ctrl, SP_##_group_id, DISCARD)
+
+#define MLXSW_SP_RXL_MARK(_id, _group_id, _action, _is_ctrl) \
+ MLXSW_RXL(mlxsw_sp_rx_mark_listener, _id, _action, _is_ctrl, \
+ SP_##_group_id, DISCARD)
+
#define MLXSW_SP_TRAP_POLICER(_id, _rate, _burst) \
DEVLINK_TRAP_POLICER(_id, _rate, _burst, \
MLXSW_REG_QPCR_HIGHEST_CIR, \
@@ -218,6 +248,18 @@ mlxsw_sp_trap_policer_items_arr[] = {
{
.policer = MLXSW_SP_TRAP_POLICER(1, 10 * 1024, 128),
},
+ {
+ .policer = MLXSW_SP_TRAP_POLICER(2, 128, 128),
+ },
+ {
+ .policer = MLXSW_SP_TRAP_POLICER(3, 128, 128),
+ },
+ {
+ .policer = MLXSW_SP_TRAP_POLICER(4, 128, 128),
+ },
+ {
+ .policer = MLXSW_SP_TRAP_POLICER(5, 16 * 1024, 128),
+ },
};
static const struct mlxsw_sp_trap_group_item mlxsw_sp_trap_group_items_arr[] = {
@@ -246,6 +288,26 @@ static const struct mlxsw_sp_trap_group_item mlxsw_sp_trap_group_items_arr[] = {
.hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_ACL_DISCARDS,
.priority = 0,
},
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(STP, 2),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_STP,
+ .priority = 5,
+ },
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(LACP, 3),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_LACP,
+ .priority = 5,
+ },
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(LLDP, 4),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_LLDP,
+ .priority = 5,
+ },
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(MC_SNOOPING, 5),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_MC_SNOOPING,
+ .priority = 3,
+ },
};
static const struct mlxsw_sp_trap_item mlxsw_sp_trap_items_arr[] = {
@@ -466,6 +528,95 @@ static const struct mlxsw_sp_trap_item mlxsw_sp_trap_items_arr[] = {
DUMMY),
},
},
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(STP, STP, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_NO_MARK(STP, STP, TRAP_TO_CPU, true),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(LACP, LACP, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_NO_MARK(LACP, LACP, TRAP_TO_CPU, true),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(LLDP, LLDP, TRAP),
+ .listeners_arr = {
+ MLXSW_RXL(mlxsw_sp_rx_ptp_listener, LLDP, TRAP_TO_CPU,
+ false, SP_LLDP, DISCARD),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IGMP_QUERY, MC_SNOOPING, MIRROR),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IGMP_QUERY, MC_SNOOPING,
+ MIRROR_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IGMP_V1_REPORT, MC_SNOOPING,
+ TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_NO_MARK(IGMP_V1_REPORT, MC_SNOOPING,
+ TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IGMP_V2_REPORT, MC_SNOOPING,
+ TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_NO_MARK(IGMP_V2_REPORT, MC_SNOOPING,
+ TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IGMP_V3_REPORT, MC_SNOOPING,
+ TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_NO_MARK(IGMP_V3_REPORT, MC_SNOOPING,
+ TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IGMP_V2_LEAVE, MC_SNOOPING,
+ TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_NO_MARK(IGMP_V2_LEAVE, MC_SNOOPING,
+ TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(MLD_QUERY, MC_SNOOPING, MIRROR),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IPV6_MLDV12_LISTENER_QUERY,
+ MC_SNOOPING, MIRROR_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(MLD_V1_REPORT, MC_SNOOPING,
+ TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_NO_MARK(IPV6_MLDV1_LISTENER_REPORT,
+ MC_SNOOPING, TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(MLD_V2_REPORT, MC_SNOOPING,
+ TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_NO_MARK(IPV6_MLDV2_LISTENER_REPORT,
+ MC_SNOOPING, TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(MLD_V1_DONE, MC_SNOOPING,
+ TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_NO_MARK(IPV6_MLDV1_LISTENER_DONE,
+ MC_SNOOPING, TRAP_TO_CPU, false),
+ },
+ },
};
static struct mlxsw_sp_trap_policer_item *
--
2.26.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH net-next 12/14] mlxsw: spectrum_trap: Register layer 3 control traps
2020-05-29 18:36 [PATCH net-next 00/14] devlink: Add support for control packet traps Ido Schimmel
` (10 preceding siblings ...)
2020-05-29 18:36 ` [PATCH net-next 11/14] mlxsw: spectrum_trap: Register layer 2 control traps Ido Schimmel
@ 2020-05-29 18:36 ` Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 13/14] mlxsw: spectrum_trap: Register ACL " Ido Schimmel
` (2 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: Ido Schimmel @ 2020-05-29 18:36 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, jiri, mlxsw, Ido Schimmel
From: Ido Schimmel <idosch@mellanox.com>
In a similar fashion to layer 2 control traps, register layer 3 control
traps with devlink.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
---
drivers/net/ethernet/mellanox/mlxsw/reg.h | 1 -
.../net/ethernet/mellanox/mlxsw/spectrum.c | 93 -----
.../ethernet/mellanox/mlxsw/spectrum_trap.c | 318 ++++++++++++++++++
3 files changed, 318 insertions(+), 94 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index 030d6f9766d2..fcb88d4271bf 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -5536,7 +5536,6 @@ enum mlxsw_reg_htgt_trap_group {
MLXSW_REG_HTGT_TRAP_GROUP_SP_MULTICAST,
MLXSW_REG_HTGT_TRAP_GROUP_SP_NEIGH_DISCOVERY,
MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP,
- MLXSW_REG_HTGT_TRAP_GROUP_SP_REMOTE_ROUTE,
MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME,
MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP,
MLXSW_REG_HTGT_TRAP_GROUP_SP_EVENT,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 74925826a2cb..8daeae1384da 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -4014,14 +4014,6 @@ static void mlxsw_sp_rx_listener_sample_func(struct sk_buff *skb, u8 local_port,
consume_skb(skb);
}
-static void mlxsw_sp_rx_listener_ptp(struct sk_buff *skb, u8 local_port,
- void *priv)
-{
- struct mlxsw_sp *mlxsw_sp = priv;
-
- mlxsw_sp->ptp_ops->receive(mlxsw_sp, skb, local_port);
-}
-
void mlxsw_sp_ptp_receive(struct mlxsw_sp *mlxsw_sp, struct sk_buff *skb,
u8 local_port)
{
@@ -4047,43 +4039,13 @@ static const struct mlxsw_listener mlxsw_sp_listener[] = {
/* Events */
MLXSW_SP_EVENTL(mlxsw_sp_pude_event_func, PUDE),
/* L2 traps */
- MLXSW_SP_RXL_MARK(ARPBC, MIRROR_TO_CPU, NEIGH_DISCOVERY, false),
- MLXSW_SP_RXL_MARK(ARPUC, MIRROR_TO_CPU, NEIGH_DISCOVERY, false),
MLXSW_SP_RXL_NO_MARK(FID_MISS, TRAP_TO_CPU, FID_MISS, false),
/* L3 traps */
- MLXSW_SP_RXL_L3_MARK(LBERROR, MIRROR_TO_CPU, LBERROR, false),
- MLXSW_SP_RXL_MARK(IP2ME, TRAP_TO_CPU, IP2ME, false),
MLXSW_SP_RXL_MARK(IPV6_UNSPECIFIED_ADDRESS, TRAP_TO_CPU, ROUTER_EXP,
false),
- MLXSW_SP_RXL_MARK(IPV6_LINK_LOCAL_DEST, TRAP_TO_CPU, IP2ME, false),
MLXSW_SP_RXL_MARK(IPV6_LINK_LOCAL_SRC, TRAP_TO_CPU, ROUTER_EXP, false),
- MLXSW_SP_RXL_MARK(IPV6_ALL_NODES_LINK, TRAP_TO_CPU, IPV6, false),
- MLXSW_SP_RXL_MARK(IPV6_ALL_ROUTERS_LINK, TRAP_TO_CPU, IPV6,
- false),
- MLXSW_SP_RXL_MARK(IPV4_OSPF, TRAP_TO_CPU, OSPF, false),
- MLXSW_SP_RXL_MARK(IPV6_OSPF, TRAP_TO_CPU, OSPF, false),
- MLXSW_SP_RXL_MARK(IPV4_DHCP, TRAP_TO_CPU, DHCP, false),
- MLXSW_SP_RXL_MARK(IPV6_DHCP, TRAP_TO_CPU, DHCP, false),
- MLXSW_SP_RXL_MARK(RTR_INGRESS0, TRAP_TO_CPU, REMOTE_ROUTE, false),
- MLXSW_SP_RXL_MARK(IPV4_BGP, TRAP_TO_CPU, BGP, false),
- MLXSW_SP_RXL_MARK(IPV6_BGP, TRAP_TO_CPU, BGP, false),
- MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_SOLICITATION, TRAP_TO_CPU, IPV6,
- false),
- MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_ADVERTISEMENT, TRAP_TO_CPU, IPV6,
- false),
- MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_SOLICITATION, TRAP_TO_CPU,
- NEIGH_DISCOVERY, false),
- MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_ADVERTISEMENT, TRAP_TO_CPU,
- NEIGH_DISCOVERY, false),
- MLXSW_SP_RXL_MARK(L3_IPV6_REDIRECTION, TRAP_TO_CPU, IPV6, false),
MLXSW_SP_RXL_MARK(IPV6_MC_LINK_LOCAL_DEST, TRAP_TO_CPU, ROUTER_EXP,
false),
- MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV4, TRAP_TO_CPU, IP2ME, false),
- MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV6, TRAP_TO_CPU, IP2ME, false),
- MLXSW_SP_RXL_MARK(IPV4_VRRP, TRAP_TO_CPU, VRRP, false),
- MLXSW_SP_RXL_MARK(IPV6_VRRP, TRAP_TO_CPU, VRRP, false),
- MLXSW_SP_RXL_MARK(IPV4_BFD, TRAP_TO_CPU, BFD, false),
- MLXSW_SP_RXL_MARK(IPV6_BFD, TRAP_TO_CPU, BFD, false),
MLXSW_SP_RXL_NO_MARK(DISCARD_ING_ROUTER_SIP_CLASS_E, FORWARD,
ROUTER_EXP, false),
MLXSW_SP_RXL_NO_MARK(DISCARD_ING_ROUTER_MC_DMAC, FORWARD,
@@ -4098,18 +4060,10 @@ static const struct mlxsw_listener mlxsw_sp_listener[] = {
/* ACL trap */
MLXSW_SP_RXL_NO_MARK(ACL0, TRAP_TO_CPU, FLOW_LOGGING, false),
/* Multicast Router Traps */
- MLXSW_SP_RXL_MARK(IPV4_PIM, TRAP_TO_CPU, PIM, false),
- MLXSW_SP_RXL_MARK(IPV6_PIM, TRAP_TO_CPU, PIM, false),
MLXSW_SP_RXL_MARK(ACL1, TRAP_TO_CPU, MULTICAST, false),
MLXSW_SP_RXL_L3_MARK(ACL2, TRAP_TO_CPU, MULTICAST, false),
/* NVE traps */
MLXSW_SP_RXL_MARK(NVE_ENCAP_ARP, TRAP_TO_CPU, NEIGH_DISCOVERY, false),
- MLXSW_SP_RXL_NO_MARK(NVE_DECAP_ARP, TRAP_TO_CPU, NEIGH_DISCOVERY,
- false),
- /* PTP traps */
- MLXSW_RXL(mlxsw_sp_rx_listener_ptp, PTP0, TRAP_TO_CPU,
- false, SP_PTP0, DISCARD),
- MLXSW_SP_RXL_NO_MARK(PTP1, TRAP_TO_CPU, PTP1, false),
};
static const struct mlxsw_listener mlxsw_sp1_listener[] = {
@@ -4138,41 +4092,13 @@ static int mlxsw_sp_cpu_policers_set(struct mlxsw_core *mlxsw_core)
for (i = 0; i < max_cpu_policers; i++) {
is_bytes = false;
switch (i) {
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_PIM:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_LBERROR:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP:
- rate = 128;
- burst_size = 7;
- break;
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_NEIGH_DISCOVERY:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_REMOTE_ROUTE:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_MULTICAST:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_FLOW_LOGGING:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_FID_MISS:
rate = 1024;
burst_size = 7;
break;
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP0:
- rate = 24 * 1024;
- burst_size = 12;
- break;
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP1:
- rate = 19 * 1024;
- burst_size = 12;
- break;
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_VRRP:
- rate = 360;
- burst_size = 7;
- break;
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_BFD:
- rate = 20 * 1024;
- burst_size = 10;
- break;
default:
continue;
}
@@ -4207,36 +4133,17 @@ static int mlxsw_sp_trap_groups_set(struct mlxsw_core *mlxsw_core)
for (i = 0; i < max_trap_groups; i++) {
policer_id = i;
switch (i) {
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_PIM:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP0:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_VRRP:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_BFD:
- priority = 5;
- tc = 5;
- break;
case MLXSW_REG_HTGT_TRAP_GROUP_SP_FLOW_LOGGING:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP:
priority = 4;
tc = 4;
break;
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_NEIGH_DISCOVERY:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP1:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP:
- priority = 2;
- tc = 2;
- break;
case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_REMOTE_ROUTE:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_MULTICAST:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_FID_MISS:
priority = 1;
tc = 1;
break;
case MLXSW_REG_HTGT_TRAP_GROUP_SP_PKT_SAMPLE:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_LBERROR:
priority = 0;
tc = 0;
break;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
index 32b77d5a917d..148a35b7f4f8 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
@@ -170,6 +170,14 @@ static void mlxsw_sp_rx_mark_listener(struct sk_buff *skb, u8 local_port,
mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx);
}
+static void mlxsw_sp_rx_l3_mark_listener(struct sk_buff *skb, u8 local_port,
+ void *trap_ctx)
+{
+ skb->offload_l3_fwd_mark = 1;
+ skb->offload_fwd_mark = 1;
+ mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx);
+}
+
static void mlxsw_sp_rx_ptp_listener(struct sk_buff *skb, u8 local_port,
void *trap_ctx)
{
@@ -235,6 +243,10 @@ static void mlxsw_sp_rx_ptp_listener(struct sk_buff *skb, u8 local_port,
MLXSW_RXL(mlxsw_sp_rx_mark_listener, _id, _action, _is_ctrl, \
SP_##_group_id, DISCARD)
+#define MLXSW_SP_RXL_L3_MARK(_id, _group_id, _action, _is_ctrl) \
+ MLXSW_RXL(mlxsw_sp_rx_l3_mark_listener, _id, _action, _is_ctrl, \
+ SP_##_group_id, DISCARD)
+
#define MLXSW_SP_TRAP_POLICER(_id, _rate, _burst) \
DEVLINK_TRAP_POLICER(_id, _rate, _burst, \
MLXSW_REG_QPCR_HIGHEST_CIR, \
@@ -260,6 +272,42 @@ mlxsw_sp_trap_policer_items_arr[] = {
{
.policer = MLXSW_SP_TRAP_POLICER(5, 16 * 1024, 128),
},
+ {
+ .policer = MLXSW_SP_TRAP_POLICER(6, 128, 128),
+ },
+ {
+ .policer = MLXSW_SP_TRAP_POLICER(7, 1024, 128),
+ },
+ {
+ .policer = MLXSW_SP_TRAP_POLICER(8, 20 * 1024, 1024),
+ },
+ {
+ .policer = MLXSW_SP_TRAP_POLICER(9, 128, 128),
+ },
+ {
+ .policer = MLXSW_SP_TRAP_POLICER(10, 1024, 128),
+ },
+ {
+ .policer = MLXSW_SP_TRAP_POLICER(11, 360, 128),
+ },
+ {
+ .policer = MLXSW_SP_TRAP_POLICER(12, 128, 128),
+ },
+ {
+ .policer = MLXSW_SP_TRAP_POLICER(13, 128, 128),
+ },
+ {
+ .policer = MLXSW_SP_TRAP_POLICER(14, 1024, 128),
+ },
+ {
+ .policer = MLXSW_SP_TRAP_POLICER(15, 1024, 128),
+ },
+ {
+ .policer = MLXSW_SP_TRAP_POLICER(16, 24 * 1024, 4096),
+ },
+ {
+ .policer = MLXSW_SP_TRAP_POLICER(17, 19 * 1024, 4096),
+ },
};
static const struct mlxsw_sp_trap_group_item mlxsw_sp_trap_group_items_arr[] = {
@@ -308,6 +356,66 @@ static const struct mlxsw_sp_trap_group_item mlxsw_sp_trap_group_items_arr[] = {
.hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_MC_SNOOPING,
.priority = 3,
},
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(DHCP, 6),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP,
+ .priority = 2,
+ },
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(NEIGH_DISCOVERY, 7),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_NEIGH_DISCOVERY,
+ .priority = 2,
+ },
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(BFD, 8),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_BFD,
+ .priority = 5,
+ },
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(OSPF, 9),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF,
+ .priority = 5,
+ },
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(BGP, 10),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP,
+ .priority = 4,
+ },
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(VRRP, 11),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_VRRP,
+ .priority = 5,
+ },
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(PIM, 12),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_PIM,
+ .priority = 5,
+ },
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(UC_LB, 13),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_LBERROR,
+ .priority = 0,
+ },
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(LOCAL_DELIVERY, 14),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME,
+ .priority = 2,
+ },
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(IPV6, 15),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6,
+ .priority = 2,
+ },
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(PTP_EVENT, 16),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP0,
+ .priority = 5,
+ },
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(PTP_GENERAL, 17),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP1,
+ .priority = 2,
+ },
};
static const struct mlxsw_sp_trap_item mlxsw_sp_trap_items_arr[] = {
@@ -617,6 +725,216 @@ static const struct mlxsw_sp_trap_item mlxsw_sp_trap_items_arr[] = {
MC_SNOOPING, TRAP_TO_CPU, false),
},
},
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV4_DHCP, DHCP, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IPV4_DHCP, DHCP, TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV6_DHCP, DHCP, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IPV6_DHCP, DHCP, TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(ARP_REQUEST, NEIGH_DISCOVERY,
+ MIRROR),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(ARPBC, NEIGH_DISCOVERY, MIRROR_TO_CPU,
+ false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(ARP_RESPONSE, NEIGH_DISCOVERY,
+ MIRROR),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(ARPUC, NEIGH_DISCOVERY, MIRROR_TO_CPU,
+ false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(ARP_OVERLAY, NEIGH_DISCOVERY,
+ TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_NO_MARK(NVE_DECAP_ARP, NEIGH_DISCOVERY,
+ TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV6_NEIGH_SOLICIT,
+ NEIGH_DISCOVERY, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_SOLICITATION,
+ NEIGH_DISCOVERY, TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV6_NEIGH_ADVERT,
+ NEIGH_DISCOVERY, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_ADVERTISEMENT,
+ NEIGH_DISCOVERY, TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV4_BFD, BFD, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IPV4_BFD, BFD, TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV6_BFD, BFD, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IPV6_BFD, BFD, TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV4_OSPF, OSPF, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IPV4_OSPF, OSPF, TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV6_OSPF, OSPF, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IPV6_OSPF, OSPF, TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV4_BGP, BGP, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IPV4_BGP, BGP, TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV6_BGP, BGP, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IPV6_BGP, BGP, TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV4_VRRP, VRRP, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IPV4_VRRP, VRRP, TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV6_VRRP, VRRP, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IPV6_VRRP, VRRP, TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV4_PIM, PIM, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IPV4_PIM, PIM, TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV6_PIM, PIM, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IPV6_PIM, PIM, TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(UC_LB, UC_LB, MIRROR),
+ .listeners_arr = {
+ MLXSW_SP_RXL_L3_MARK(LBERROR, LBERROR, MIRROR_TO_CPU,
+ false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(LOCAL_ROUTE, LOCAL_DELIVERY,
+ TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IP2ME, IP2ME, TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(EXTERNAL_ROUTE, LOCAL_DELIVERY,
+ TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(RTR_INGRESS0, IP2ME, TRAP_TO_CPU,
+ false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV6_UC_DIP_LINK_LOCAL_SCOPE,
+ LOCAL_DELIVERY, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IPV6_LINK_LOCAL_DEST, IP2ME,
+ TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV4_ROUTER_ALERT, LOCAL_DELIVERY,
+ TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV4, IP2ME, TRAP_TO_CPU,
+ false),
+ },
+ },
+ {
+ /* IPV6_ROUTER_ALERT is defined in uAPI as 22, but it is not
+ * used in this file, so undefine it.
+ */
+ #undef IPV6_ROUTER_ALERT
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV6_ROUTER_ALERT, LOCAL_DELIVERY,
+ TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV6, IP2ME, TRAP_TO_CPU,
+ false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV6_DIP_ALL_NODES, IPV6, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IPV6_ALL_NODES_LINK, IPV6,
+ TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV6_DIP_ALL_ROUTERS, IPV6, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(IPV6_ALL_ROUTERS_LINK, IPV6,
+ TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV6_ROUTER_SOLICIT, IPV6, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_SOLICITATION, IPV6,
+ TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV6_ROUTER_ADVERT, IPV6, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_ADVERTISEMENT, IPV6,
+ TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(IPV6_REDIRECT, IPV6, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_MARK(L3_IPV6_REDIRECTION, IPV6,
+ TRAP_TO_CPU, false),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(PTP_EVENT, PTP_EVENT, TRAP),
+ .listeners_arr = {
+ MLXSW_RXL(mlxsw_sp_rx_ptp_listener, PTP0, TRAP_TO_CPU,
+ false, SP_PTP0, DISCARD),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(PTP_GENERAL, PTP_GENERAL, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_NO_MARK(PTP1, PTP1, TRAP_TO_CPU, false),
+ },
+ },
};
static struct mlxsw_sp_trap_policer_item *
--
2.26.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH net-next 13/14] mlxsw: spectrum_trap: Register ACL control traps
2020-05-29 18:36 [PATCH net-next 00/14] devlink: Add support for control packet traps Ido Schimmel
` (11 preceding siblings ...)
2020-05-29 18:36 ` [PATCH net-next 12/14] mlxsw: spectrum_trap: Register layer 3 " Ido Schimmel
@ 2020-05-29 18:36 ` Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 14/14] selftests: mlxsw: Add test for control packets Ido Schimmel
2020-06-01 18:49 ` [PATCH net-next 00/14] devlink: Add support for control packet traps David Miller
14 siblings, 0 replies; 16+ messages in thread
From: Ido Schimmel @ 2020-05-29 18:36 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, jiri, mlxsw, Ido Schimmel
From: Ido Schimmel <idosch@mellanox.com>
In a similar fashion to other control traps, register ACL control traps
with devlink.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
---
.../net/ethernet/mellanox/mlxsw/spectrum.c | 31 ++++---------
.../net/ethernet/mellanox/mlxsw/spectrum.h | 2 +
.../ethernet/mellanox/mlxsw/spectrum_trap.c | 45 +++++++++++++++++++
3 files changed, 55 insertions(+), 23 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 8daeae1384da..5ffa32b75e5f 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -3987,10 +3987,15 @@ static void mlxsw_sp_rx_listener_l3_mark_func(struct sk_buff *skb,
return mlxsw_sp_rx_listener_no_mark_func(skb, local_port, priv);
}
-static void mlxsw_sp_rx_listener_sample_func(struct sk_buff *skb, u8 local_port,
- void *priv)
+void mlxsw_sp_ptp_receive(struct mlxsw_sp *mlxsw_sp, struct sk_buff *skb,
+ u8 local_port)
+{
+ mlxsw_sp->ptp_ops->receive(mlxsw_sp, skb, local_port);
+}
+
+void mlxsw_sp_sample_receive(struct mlxsw_sp *mlxsw_sp, struct sk_buff *skb,
+ u8 local_port)
{
- struct mlxsw_sp *mlxsw_sp = priv;
struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
struct mlxsw_sp_port_sample *sample;
u32 size;
@@ -4014,12 +4019,6 @@ static void mlxsw_sp_rx_listener_sample_func(struct sk_buff *skb, u8 local_port,
consume_skb(skb);
}
-void mlxsw_sp_ptp_receive(struct mlxsw_sp *mlxsw_sp, struct sk_buff *skb,
- u8 local_port)
-{
- mlxsw_sp->ptp_ops->receive(mlxsw_sp, skb, local_port);
-}
-
#define MLXSW_SP_RXL_NO_MARK(_trap_id, _action, _trap_group, _is_ctrl) \
MLXSW_RXL(mlxsw_sp_rx_listener_no_mark_func, _trap_id, _action, \
_is_ctrl, SP_##_trap_group, DISCARD)
@@ -4054,11 +4053,6 @@ static const struct mlxsw_listener mlxsw_sp_listener[] = {
ROUTER_EXP, false),
MLXSW_SP_RXL_NO_MARK(DISCARD_ING_ROUTER_DIP_LINK_LOCAL, FORWARD,
ROUTER_EXP, false),
- /* PKT Sample trap */
- MLXSW_RXL(mlxsw_sp_rx_listener_sample_func, PKT_SAMPLE, MIRROR_TO_CPU,
- false, SP_PKT_SAMPLE, DISCARD),
- /* ACL trap */
- MLXSW_SP_RXL_NO_MARK(ACL0, TRAP_TO_CPU, FLOW_LOGGING, false),
/* Multicast Router Traps */
MLXSW_SP_RXL_MARK(ACL1, TRAP_TO_CPU, MULTICAST, false),
MLXSW_SP_RXL_L3_MARK(ACL2, TRAP_TO_CPU, MULTICAST, false),
@@ -4094,7 +4088,6 @@ static int mlxsw_sp_cpu_policers_set(struct mlxsw_core *mlxsw_core)
switch (i) {
case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_MULTICAST:
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_FLOW_LOGGING:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_FID_MISS:
rate = 1024;
burst_size = 7;
@@ -4133,20 +4126,12 @@ static int mlxsw_sp_trap_groups_set(struct mlxsw_core *mlxsw_core)
for (i = 0; i < max_trap_groups; i++) {
policer_id = i;
switch (i) {
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_FLOW_LOGGING:
- priority = 4;
- tc = 4;
- break;
case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_MULTICAST:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_FID_MISS:
priority = 1;
tc = 1;
break;
- case MLXSW_REG_HTGT_TRAP_GROUP_SP_PKT_SAMPLE:
- priority = 0;
- tc = 0;
- break;
case MLXSW_REG_HTGT_TRAP_GROUP_SP_EVENT:
priority = MLXSW_REG_HTGT_DEFAULT_PRIORITY;
tc = MLXSW_REG_HTGT_DEFAULT_TC;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
index 9d4dfb22cb7a..6f96ca50c9ba 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
@@ -453,6 +453,8 @@ void mlxsw_sp_rx_listener_no_mark_func(struct sk_buff *skb,
u8 local_port, void *priv);
void mlxsw_sp_ptp_receive(struct mlxsw_sp *mlxsw_sp, struct sk_buff *skb,
u8 local_port);
+void mlxsw_sp_sample_receive(struct mlxsw_sp *mlxsw_sp, struct sk_buff *skb,
+ u8 local_port);
int mlxsw_sp_port_speed_get(struct mlxsw_sp_port *mlxsw_sp_port, u32 *speed);
int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port,
enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
index 148a35b7f4f8..157a42c63066 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
@@ -195,6 +195,23 @@ static void mlxsw_sp_rx_ptp_listener(struct sk_buff *skb, u8 local_port,
mlxsw_sp_ptp_receive(mlxsw_sp, skb, local_port);
}
+static void mlxsw_sp_rx_sample_listener(struct sk_buff *skb, u8 local_port,
+ void *trap_ctx)
+{
+ struct mlxsw_sp *mlxsw_sp = devlink_trap_ctx_priv(trap_ctx);
+ int err;
+
+ err = __mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx);
+ if (err)
+ return;
+
+ /* The sample handler expects skb->data to point to the start of the
+ * Ethernet header.
+ */
+ skb_push(skb, ETH_HLEN);
+ mlxsw_sp_sample_receive(mlxsw_sp, skb, local_port);
+}
+
#define MLXSW_SP_TRAP_DROP(_id, _group_id) \
DEVLINK_TRAP_GENERIC(DROP, DROP, _id, \
DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
@@ -308,6 +325,9 @@ mlxsw_sp_trap_policer_items_arr[] = {
{
.policer = MLXSW_SP_TRAP_POLICER(17, 19 * 1024, 4096),
},
+ {
+ .policer = MLXSW_SP_TRAP_POLICER(18, 1024, 128),
+ },
};
static const struct mlxsw_sp_trap_group_item mlxsw_sp_trap_group_items_arr[] = {
@@ -416,6 +436,16 @@ static const struct mlxsw_sp_trap_group_item mlxsw_sp_trap_group_items_arr[] = {
.hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP1,
.priority = 2,
},
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(ACL_SAMPLE, 0),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_PKT_SAMPLE,
+ .priority = 0,
+ },
+ {
+ .group = DEVLINK_TRAP_GROUP_GENERIC(ACL_TRAP, 18),
+ .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_FLOW_LOGGING,
+ .priority = 4,
+ },
};
static const struct mlxsw_sp_trap_item mlxsw_sp_trap_items_arr[] = {
@@ -935,6 +965,21 @@ static const struct mlxsw_sp_trap_item mlxsw_sp_trap_items_arr[] = {
MLXSW_SP_RXL_NO_MARK(PTP1, PTP1, TRAP_TO_CPU, false),
},
},
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(FLOW_ACTION_SAMPLE, ACL_SAMPLE,
+ MIRROR),
+ .listeners_arr = {
+ MLXSW_RXL(mlxsw_sp_rx_sample_listener, PKT_SAMPLE,
+ MIRROR_TO_CPU, false, SP_PKT_SAMPLE, DISCARD),
+ },
+ },
+ {
+ .trap = MLXSW_SP_TRAP_CONTROL(FLOW_ACTION_TRAP, ACL_TRAP, TRAP),
+ .listeners_arr = {
+ MLXSW_SP_RXL_NO_MARK(ACL0, FLOW_LOGGING, TRAP_TO_CPU,
+ false),
+ },
+ },
};
static struct mlxsw_sp_trap_policer_item *
--
2.26.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH net-next 14/14] selftests: mlxsw: Add test for control packets
2020-05-29 18:36 [PATCH net-next 00/14] devlink: Add support for control packet traps Ido Schimmel
` (12 preceding siblings ...)
2020-05-29 18:36 ` [PATCH net-next 13/14] mlxsw: spectrum_trap: Register ACL " Ido Schimmel
@ 2020-05-29 18:36 ` Ido Schimmel
2020-06-01 18:49 ` [PATCH net-next 00/14] devlink: Add support for control packet traps David Miller
14 siblings, 0 replies; 16+ messages in thread
From: Ido Schimmel @ 2020-05-29 18:36 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, jiri, mlxsw, Ido Schimmel
From: Ido Schimmel <idosch@mellanox.com>
Generate packets matching the various control traps and check that the
traps' stats increase accordingly.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
---
.../drivers/net/mlxsw/devlink_trap_control.sh | 688 ++++++++++++++++++
.../selftests/net/forwarding/devlink_lib.sh | 23 +
2 files changed, 711 insertions(+)
create mode 100755 tools/testing/selftests/drivers/net/mlxsw/devlink_trap_control.sh
diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_control.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_control.sh
new file mode 100755
index 000000000000..a37273473c1b
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_control.sh
@@ -0,0 +1,688 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test devlink-trap control trap functionality over mlxsw. Each registered
+# control packet trap is tested to make sure it is triggered under the right
+# conditions.
+#
+# +---------------------------------+
+# | H1 (vrf) |
+# | + $h1 |
+# | | 192.0.2.1/24 |
+# | | 2001:db8:1::1/64 |
+# | | |
+# | | default via 192.0.2.2 |
+# | | default via 2001:db8:1::2 |
+# +----|----------------------------+
+# |
+# +----|----------------------------------------------------------------------+
+# | SW | |
+# | + $rp1 |
+# | 192.0.2.2/24 |
+# | 2001:db8:1::2/64 |
+# | |
+# | 2001:db8:2::2/64 |
+# | 198.51.100.2/24 |
+# | + $rp2 |
+# | | |
+# +----|----------------------------------------------------------------------+
+# |
+# +----|----------------------------+
+# | | default via 198.51.100.2 |
+# | | default via 2001:db8:2::2 |
+# | | |
+# | | 2001:db8:2::1/64 |
+# | | 198.51.100.1/24 |
+# | + $h2 |
+# | H2 (vrf) |
+# +---------------------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+ stp_test
+ lacp_test
+ lldp_test
+ igmp_query_test
+ igmp_v1_report_test
+ igmp_v2_report_test
+ igmp_v3_report_test
+ igmp_v2_leave_test
+ mld_query_test
+ mld_v1_report_test
+ mld_v2_report_test
+ mld_v1_done_test
+ ipv4_dhcp_test
+ ipv6_dhcp_test
+ arp_request_test
+ arp_response_test
+ ipv6_neigh_solicit_test
+ ipv6_neigh_advert_test
+ ipv4_bfd_test
+ ipv6_bfd_test
+ ipv4_ospf_test
+ ipv6_ospf_test
+ ipv4_bgp_test
+ ipv6_bgp_test
+ ipv4_vrrp_test
+ ipv6_vrrp_test
+ ipv4_pim_test
+ ipv6_pim_test
+ uc_loopback_test
+ local_route_test
+ external_route_test
+ ipv6_uc_dip_link_local_scope_test
+ ipv4_router_alert_test
+ ipv6_router_alert_test
+ ipv6_dip_all_nodes_test
+ ipv6_dip_all_routers_test
+ ipv6_router_solicit_test
+ ipv6_router_advert_test
+ ipv6_redirect_test
+ ptp_event_test
+ ptp_general_test
+ flow_action_sample_test
+ flow_action_trap_test
+"
+NUM_NETIFS=4
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+
+ ip -4 route add default vrf v$h1 nexthop via 192.0.2.2
+ ip -6 route add default vrf v$h1 nexthop via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+ ip -6 route del default vrf v$h1 nexthop via 2001:db8:1::2
+ ip -4 route del default vrf v$h1 nexthop via 192.0.2.2
+
+ simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+ simple_if_init $h2 198.51.100.1/24 2001:db8:2::1/64
+
+ ip -4 route add default vrf v$h2 nexthop via 198.51.100.2
+ ip -6 route add default vrf v$h2 nexthop via 2001:db8:2::2
+}
+
+h2_destroy()
+{
+ ip -6 route del default vrf v$h2 nexthop via 2001:db8:2::2
+ ip -4 route del default vrf v$h2 nexthop via 198.51.100.2
+
+ simple_if_fini $h2 198.51.100.1/24 2001:db8:2::1/64
+}
+
+router_create()
+{
+ ip link set dev $rp1 up
+ ip link set dev $rp2 up
+
+ __addr_add_del $rp1 add 192.0.2.2/24 2001:db8:1::2/64
+ __addr_add_del $rp2 add 198.51.100.2/24 2001:db8:2::2/64
+}
+
+router_destroy()
+{
+ __addr_add_del $rp2 del 198.51.100.2/24 2001:db8:2::2/64
+ __addr_add_del $rp1 del 192.0.2.2/24 2001:db8:1::2/64
+
+ ip link set dev $rp2 down
+ ip link set dev $rp1 down
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ rp1=${NETIFS[p2]}
+
+ rp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ vrf_prepare
+ forwarding_enable
+
+ h1_create
+ h2_create
+ router_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ router_destroy
+ h2_destroy
+ h1_destroy
+
+ forwarding_restore
+ vrf_cleanup
+}
+
+stp_test()
+{
+ devlink_trap_stats_test "STP" "stp" $MZ $h1 -c 1 -t bpdu -q
+}
+
+lacp_payload_get()
+{
+ local source_mac=$1; shift
+ local p
+
+ p=$(:
+ )"01:80:C2:00:00:02:"$( : ETH daddr
+ )"$source_mac:"$( : ETH saddr
+ )"88:09:"$( : ETH type
+ )
+ echo $p
+}
+
+lacp_test()
+{
+ local h1mac=$(mac_get $h1)
+
+ devlink_trap_stats_test "LACP" "lacp" $MZ $h1 -c 1 \
+ $(lacp_payload_get $h1mac) -p 100 -q
+}
+
+lldp_payload_get()
+{
+ local source_mac=$1; shift
+ local p
+
+ p=$(:
+ )"01:80:C2:00:00:0E:"$( : ETH daddr
+ )"$source_mac:"$( : ETH saddr
+ )"88:CC:"$( : ETH type
+ )
+ echo $p
+}
+
+lldp_test()
+{
+ local h1mac=$(mac_get $h1)
+
+ devlink_trap_stats_test "LLDP" "lldp" $MZ $h1 -c 1 \
+ $(lldp_payload_get $h1mac) -p 100 -q
+}
+
+igmp_query_test()
+{
+ # IGMP (IP Protocol 2) Membership Query (Type 0x11)
+ devlink_trap_stats_test "IGMP Membership Query" "igmp_query" \
+ $MZ $h1 -c 1 -a own -b 01:00:5E:00:00:01 \
+ -A 192.0.2.1 -B 224.0.0.1 -t ip proto=2,p=11 -p 100 -q
+}
+
+igmp_v1_report_test()
+{
+ # IGMP (IP Protocol 2) Version 1 Membership Report (Type 0x12)
+ devlink_trap_stats_test "IGMP Version 1 Membership Report" \
+ "igmp_v1_report" $MZ $h1 -c 1 -a own -b 01:00:5E:00:00:01 \
+ -A 192.0.2.1 -B 244.0.0.1 -t ip proto=2,p=12 -p 100 -q
+}
+
+igmp_v2_report_test()
+{
+ # IGMP (IP Protocol 2) Version 2 Membership Report (Type 0x16)
+ devlink_trap_stats_test "IGMP Version 2 Membership Report" \
+ "igmp_v2_report" $MZ $h1 -c 1 -a own -b 01:00:5E:00:00:01 \
+ -A 192.0.2.1 -B 244.0.0.1 -t ip proto=2,p=16 -p 100 -q
+}
+
+igmp_v3_report_test()
+{
+ # IGMP (IP Protocol 2) Version 3 Membership Report (Type 0x22)
+ devlink_trap_stats_test "IGMP Version 3 Membership Report" \
+ "igmp_v3_report" $MZ $h1 -c 1 -a own -b 01:00:5E:00:00:01 \
+ -A 192.0.2.1 -B 244.0.0.1 -t ip proto=2,p=22 -p 100 -q
+}
+
+igmp_v2_leave_test()
+{
+ # IGMP (IP Protocol 2) Version 2 Leave Group (Type 0x17)
+ devlink_trap_stats_test "IGMP Version 2 Leave Group" \
+ "igmp_v2_leave" $MZ $h1 -c 1 -a own -b 01:00:5E:00:00:02 \
+ -A 192.0.2.1 -B 224.0.0.2 -t ip proto=2,p=17 -p 100 -q
+}
+
+mld_payload_get()
+{
+ local type=$1; shift
+ local p
+
+ type=$(printf "%x" $type)
+ p=$(:
+ )"3A:"$( : Next Header - ICMPv6
+ )"00:"$( : Hdr Ext Len
+ )"00:00:00:00:00:00:"$( : Options and Padding
+ )"$type:"$( : ICMPv6.type
+ )"00:"$( : ICMPv6.code
+ )"00:"$( : ICMPv6.checksum
+ )
+ echo $p
+}
+
+mld_query_test()
+{
+ # MLD Multicast Listener Query (Type 130)
+ devlink_trap_stats_test "MLD Multicast Listener Query" "mld_query" \
+ $MZ $h1 -6 -c 1 -A fe80::1 -B ff02::1 \
+ -t ip hop=1,next=0,payload=$(mld_payload_get 130) -p 100 -q
+}
+
+mld_v1_report_test()
+{
+ # MLD Version 1 Multicast Listener Report (Type 131)
+ devlink_trap_stats_test "MLD Version 1 Multicast Listener Report" \
+ "mld_v1_report" $MZ $h1 -6 -c 1 -A fe80::1 -B ff02::16 \
+ -t ip hop=1,next=0,payload=$(mld_payload_get 131) -p 100 -q
+}
+
+mld_v2_report_test()
+{
+ # MLD Version 2 Multicast Listener Report (Type 143)
+ devlink_trap_stats_test "MLD Version 2 Multicast Listener Report" \
+ "mld_v2_report" $MZ $h1 -6 -c 1 -A fe80::1 -B ff02::16 \
+ -t ip hop=1,next=0,payload=$(mld_payload_get 143) -p 100 -q
+}
+
+mld_v1_done_test()
+{
+ # MLD Version 1 Multicast Listener Done (Type 132)
+ devlink_trap_stats_test "MLD Version 1 Multicast Listener Done" \
+ "mld_v1_done" $MZ $h1 -6 -c 1 -A fe80::1 -B ff02::16 \
+ -t ip hop=1,next=0,payload=$(mld_payload_get 132) -p 100 -q
+}
+
+ipv4_dhcp_test()
+{
+ devlink_trap_stats_test "IPv4 DHCP Port 67" "ipv4_dhcp" \
+ $MZ $h1 -c 1 -a own -b bcast -A 0.0.0.0 -B 255.255.255.255 \
+ -t udp sp=68,dp=67 -p 100 -q
+
+ devlink_trap_stats_test "IPv4 DHCP Port 68" "ipv4_dhcp" \
+ $MZ $h1 -c 1 -a own -b $(mac_get $rp1) -A 192.0.2.1 \
+ -B 255.255.255.255 -t udp sp=67,dp=68 -p 100 -q
+}
+
+ipv6_dhcp_test()
+{
+ devlink_trap_stats_test "IPv6 DHCP Port 547" "ipv6_dhcp" \
+ $MZ $h1 -6 -c 1 -A fe80::1 -B ff02::1:2 -t udp sp=546,dp=547 \
+ -p 100 -q
+
+ devlink_trap_stats_test "IPv6 DHCP Port 546" "ipv6_dhcp" \
+ $MZ $h1 -6 -c 1 -A fe80::1 -B ff02::1:2 -t udp sp=547,dp=546 \
+ -p 100 -q
+}
+
+arp_request_test()
+{
+ devlink_trap_stats_test "ARP Request" "arp_request" \
+ $MZ $h1 -c 1 -a own -b bcast -t arp request -p 100 -q
+}
+
+arp_response_test()
+{
+ devlink_trap_stats_test "ARP Response" "arp_response" \
+ $MZ $h1 -c 1 -a own -b $(mac_get $rp1) -t arp reply -p 100 -q
+}
+
+icmpv6_header_get()
+{
+ local type=$1; shift
+ local p
+
+ type=$(printf "%x" $type)
+ p=$(:
+ )"$type:"$( : ICMPv6.type
+ )"00:"$( : ICMPv6.code
+ )"00:"$( : ICMPv6.checksum
+ )
+ echo $p
+}
+
+ipv6_neigh_solicit_test()
+{
+ devlink_trap_stats_test "IPv6 Neighbour Solicitation" \
+ "ipv6_neigh_solicit" $MZ $h1 -6 -c 1 \
+ -A fe80::1 -B ff02::1:ff00:02 \
+ -t ip hop=1,next=58,payload=$(icmpv6_header_get 135) -p 100 -q
+}
+
+ipv6_neigh_advert_test()
+{
+ devlink_trap_stats_test "IPv6 Neighbour Advertisement" \
+ "ipv6_neigh_advert" $MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+ -A fe80::1 -B 2001:db8:1::2 \
+ -t ip hop=1,next=58,payload=$(icmpv6_header_get 136) -p 100 -q
+}
+
+ipv4_bfd_test()
+{
+ devlink_trap_stats_test "IPv4 BFD Control - Port 3784" "ipv4_bfd" \
+ $MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+ -A 192.0.2.1 -B 192.0.2.2 -t udp sp=49153,dp=3784 -p 100 -q
+
+ devlink_trap_stats_test "IPv4 BFD Echo - Port 3785" "ipv4_bfd" \
+ $MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+ -A 192.0.2.1 -B 192.0.2.2 -t udp sp=49153,dp=3785 -p 100 -q
+}
+
+ipv6_bfd_test()
+{
+ devlink_trap_stats_test "IPv6 BFD Control - Port 3784" "ipv6_bfd" \
+ $MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+ -A 2001:db8:1::1 -B 2001:db8:1::2 \
+ -t udp sp=49153,dp=3784 -p 100 -q
+
+ devlink_trap_stats_test "IPv6 BFD Echo - Port 3785" "ipv6_bfd" \
+ $MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+ -A 2001:db8:1::1 -B 2001:db8:1::2 \
+ -t udp sp=49153,dp=3785 -p 100 -q
+}
+
+ipv4_ospf_test()
+{
+ devlink_trap_stats_test "IPv4 OSPF - Multicast" "ipv4_ospf" \
+ $MZ $h1 -c 1 -a own -b 01:00:5e:00:00:05 \
+ -A 192.0.2.1 -B 224.0.0.5 -t ip proto=89 -p 100 -q
+
+ devlink_trap_stats_test "IPv4 OSPF - Unicast" "ipv4_ospf" \
+ $MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+ -A 192.0.2.1 -B 192.0.2.2 -t ip proto=89 -p 100 -q
+}
+
+ipv6_ospf_test()
+{
+ devlink_trap_stats_test "IPv6 OSPF - Multicast" "ipv6_ospf" \
+ $MZ $h1 -6 -c 1 -a own -b 33:33:00:00:00:05 \
+ -A fe80::1 -B ff02::5 -t ip next=89 -p 100 -q
+
+ devlink_trap_stats_test "IPv6 OSPF - Unicast" "ipv6_ospf" \
+ $MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+ -A 2001:db8:1::1 -B 2001:db8:1::2 -t ip next=89 -p 100 -q
+}
+
+ipv4_bgp_test()
+{
+ devlink_trap_stats_test "IPv4 BGP" "ipv4_bgp" \
+ $MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+ -A 192.0.2.1 -B 192.0.2.2 -t tcp sp=54321,dp=179,flags=rst \
+ -p 100 -q
+}
+
+ipv6_bgp_test()
+{
+ devlink_trap_stats_test "IPv6 BGP" "ipv6_bgp" \
+ $MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+ -A 2001:db8:1::1 -B 2001:db8:1::2 \
+ -t tcp sp=54321,dp=179,flags=rst -p 100 -q
+}
+
+ipv4_vrrp_test()
+{
+ devlink_trap_stats_test "IPv4 VRRP" "ipv4_vrrp" \
+ $MZ $h1 -c 1 -a own -b 01:00:5e:00:00:12 \
+ -A 192.0.2.1 -B 224.0.0.18 -t ip proto=112 -p 100 -q
+}
+
+ipv6_vrrp_test()
+{
+ devlink_trap_stats_test "IPv6 VRRP" "ipv6_vrrp" \
+ $MZ $h1 -6 -c 1 -a own -b 33:33:00:00:00:12 \
+ -A fe80::1 -B ff02::12 -t ip next=112 -p 100 -q
+}
+
+ipv4_pim_test()
+{
+ devlink_trap_stats_test "IPv4 PIM - Multicast" "ipv4_pim" \
+ $MZ $h1 -c 1 -a own -b 01:00:5e:00:00:0d \
+ -A 192.0.2.1 -B 224.0.0.13 -t ip proto=103 -p 100 -q
+
+ devlink_trap_stats_test "IPv4 PIM - Unicast" "ipv4_pim" \
+ $MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+ -A 192.0.2.1 -B 192.0.2.2 -t ip proto=103 -p 100 -q
+}
+
+ipv6_pim_test()
+{
+ devlink_trap_stats_test "IPv6 PIM - Multicast" "ipv6_pim" \
+ $MZ $h1 -6 -c 1 -a own -b 33:33:00:00:00:0d \
+ -A fe80::1 -B ff02::d -t ip next=103 -p 100 -q
+
+ devlink_trap_stats_test "IPv6 PIM - Unicast" "ipv6_pim" \
+ $MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+ -A fe80::1 -B 2001:db8:1::2 -t ip next=103 -p 100 -q
+}
+
+uc_loopback_test()
+{
+ # Add neighbours to the fake destination IPs, so that the packets are
+ # routed in the device and not trapped due to an unresolved neighbour
+ # exception.
+ ip -4 neigh add 192.0.2.3 lladdr 00:11:22:33:44:55 nud permanent \
+ dev $rp1
+ ip -6 neigh add 2001:db8:1::3 lladdr 00:11:22:33:44:55 nud permanent \
+ dev $rp1
+
+ devlink_trap_stats_test "IPv4 Unicast Loopback" "uc_loopback" \
+ $MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+ -A 192.0.2.1 -B 192.0.2.3 -t udp sp=54321,dp=12345 -p 100 -q
+
+ devlink_trap_stats_test "IPv6 Unicast Loopback" "uc_loopback" \
+ $MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+ -A 2001:db8:1::1 -B 2001:db8:1::3 -t udp sp=54321,dp=12345 \
+ -p 100 -q
+
+ ip -6 neigh del 2001:db8:1::3 dev $rp1
+ ip -4 neigh del 192.0.2.3 dev $rp1
+}
+
+local_route_test()
+{
+ # Use a fake source IP to prevent the trap from being triggered twice
+ # when the router sends back a port unreachable message.
+ devlink_trap_stats_test "IPv4 Local Route" "local_route" \
+ $MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+ -A 192.0.2.3 -B 192.0.2.2 -t udp sp=54321,dp=12345 -p 100 -q
+
+ devlink_trap_stats_test "IPv6 Local Route" "local_route" \
+ $MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+ -A 2001:db8:1::3 -B 2001:db8:1::2 -t udp sp=54321,sp=12345 \
+ -p 100 -q
+}
+
+external_route_test()
+{
+ # Add a dummy device through which the incoming packets should be
+ # routed.
+ ip link add name dummy10 up type dummy
+ ip address add 203.0.113.1/24 dev dummy10
+ ip -6 address add 2001:db8:10::1/64 dev dummy10
+
+ devlink_trap_stats_test "IPv4 External Route" "external_route" \
+ $MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+ -A 192.0.2.1 -B 203.0.113.2 -t udp sp=54321,dp=12345 -p 100 -q
+
+ devlink_trap_stats_test "IPv6 External Route" "external_route" \
+ $MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+ -A 2001:db8:1::1 -B 2001:db8:10::2 -t udp sp=54321,sp=12345 \
+ -p 100 -q
+
+ ip -6 address del 2001:db8:10::1/64 dev dummy10
+ ip address del 203.0.113.1/24 dev dummy10
+ ip link del dev dummy10
+}
+
+ipv6_uc_dip_link_local_scope_test()
+{
+ # Add a dummy link-local prefix route to allow the packet to be routed.
+ ip -6 route add fe80:1::/64 dev $rp2
+
+ devlink_trap_stats_test \
+ "IPv6 Unicast Destination IP With Link-Local Scope" \
+ "ipv6_uc_dip_link_local_scope" \
+ $MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+ -A fe80::1 -B fe80:1::2 -t udp sp=54321,sp=12345 \
+ -p 100 -q
+
+ ip -6 route del fe80:1::/64 dev $rp2
+}
+
+ipv4_router_alert_get()
+{
+ local p
+
+ # https://en.wikipedia.org/wiki/IPv4#Options
+ p=$(:
+ )"94:"$( : Option Number
+ )"04:"$( : Option Length
+ )"00:00:"$( : Option Data
+ )
+ echo $p
+}
+
+ipv4_router_alert_test()
+{
+ devlink_trap_stats_test "IPv4 Router Alert" "ipv4_router_alert" \
+ $MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+ -A 192.0.2.1 -B 198.51.100.3 \
+ -t ip option=$(ipv4_router_alert_get) -p 100 -q
+}
+
+ipv6_router_alert_get()
+{
+ local p
+
+ # https://en.wikipedia.org/wiki/IPv6_packet#Hop-by-hop_options_and_destination_options
+ # https://tools.ietf.org/html/rfc2711#section-2.1
+ p=$(:
+ )"11:"$( : Next Header - UDP
+ )"00:"$( : Hdr Ext Len
+ )"05:02:00:00:00:00:"$( : Option Data
+ )
+ echo $p
+}
+
+ipv6_router_alert_test()
+{
+ devlink_trap_stats_test "IPv6 Router Alert" "ipv6_router_alert" \
+ $MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+ -A 2001:db8:1::1 -B 2001:db8:1::3 \
+ -t ip next=0,payload=$(ipv6_router_alert_get) -p 100 -q
+}
+
+ipv6_dip_all_nodes_test()
+{
+ devlink_trap_stats_test "IPv6 Destination IP \"All Nodes Address\"" \
+ "ipv6_dip_all_nodes" \
+ $MZ $h1 -6 -c 1 -a own -b 33:33:00:00:00:01 \
+ -A 2001:db8:1::1 -B ff02::1 -t udp sp=12345,dp=54321 -p 100 -q
+}
+
+ipv6_dip_all_routers_test()
+{
+ devlink_trap_stats_test "IPv6 Destination IP \"All Routers Address\"" \
+ "ipv6_dip_all_routers" \
+ $MZ $h1 -6 -c 1 -a own -b 33:33:00:00:00:02 \
+ -A 2001:db8:1::1 -B ff02::2 -t udp sp=12345,dp=54321 -p 100 -q
+}
+
+ipv6_router_solicit_test()
+{
+ devlink_trap_stats_test "IPv6 Router Solicitation" \
+ "ipv6_router_solicit" \
+ $MZ $h1 -6 -c 1 -a own -b 33:33:00:00:00:02 \
+ -A fe80::1 -B ff02::2 \
+ -t ip hop=1,next=58,payload=$(icmpv6_header_get 133) -p 100 -q
+}
+
+ipv6_router_advert_test()
+{
+ devlink_trap_stats_test "IPv6 Router Advertisement" \
+ "ipv6_router_advert" \
+ $MZ $h1 -6 -c 1 -a own -b 33:33:00:00:00:01 \
+ -A fe80::1 -B ff02::1 \
+ -t ip hop=1,next=58,payload=$(icmpv6_header_get 134) -p 100 -q
+}
+
+ipv6_redirect_test()
+{
+ devlink_trap_stats_test "IPv6 Redirect Message" \
+ "ipv6_redirect" \
+ $MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+ -A fe80::1 -B 2001:db8:1::2 \
+ -t ip hop=1,next=58,payload=$(icmpv6_header_get 137) -p 100 -q
+}
+
+ptp_event_test()
+{
+ # PTP is only supported on Spectrum-1, for now.
+ [[ "$DEVLINK_VIDDID" != "15b3:cb84" ]] && return
+
+ # PTP Sync (0)
+ devlink_trap_stats_test "PTP Time-Critical Event Message" "ptp_event" \
+ $MZ $h1 -c 1 -a own -b 01:00:5e:00:01:81 \
+ -A 192.0.2.1 -B 224.0.1.129 \
+ -t udp sp=12345,dp=319,payload=10 -p 100 -q
+}
+
+ptp_general_test()
+{
+ # PTP is only supported on Spectrum-1, for now.
+ [[ "$DEVLINK_VIDDID" != "15b3:cb84" ]] && return
+
+ # PTP Announce (b)
+ devlink_trap_stats_test "PTP General Message" "ptp_general" \
+ $MZ $h1 -c 1 -a own -b 01:00:5e:00:01:81 \
+ -A 192.0.2.1 -B 224.0.1.129 \
+ -t udp sp=12345,dp=320,payload=1b -p 100 -q
+}
+
+flow_action_sample_test()
+{
+ # Install a filter that samples every incoming packet.
+ tc qdisc add dev $rp1 clsact
+ tc filter add dev $rp1 ingress proto all pref 1 handle 101 matchall \
+ skip_sw action sample rate 1 group 1
+
+ devlink_trap_stats_test "Flow Sampling" "flow_action_sample" \
+ $MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+ -A 192.0.2.1 -B 198.51.100.1 -t udp sp=12345,dp=54321 -p 100 -q
+
+ tc filter del dev $rp1 ingress proto all pref 1 handle 101 matchall
+ tc qdisc del dev $rp1 clsact
+}
+
+flow_action_trap_test()
+{
+ # Install a filter that traps a specific flow.
+ tc qdisc add dev $rp1 clsact
+ tc filter add dev $rp1 ingress proto ip pref 1 handle 101 flower \
+ skip_sw ip_proto udp src_port 12345 dst_port 54321 action trap
+
+ devlink_trap_stats_test "Flow Trapping (Logging)" "flow_action_trap" \
+ $MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+ -A 192.0.2.1 -B 198.51.100.1 -t udp sp=12345,dp=54321 -p 100 -q
+
+ tc filter del dev $rp1 ingress proto ip pref 1 handle 101 flower
+ tc qdisc del dev $rp1 clsact
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/devlink_lib.sh b/tools/testing/selftests/net/forwarding/devlink_lib.sh
index e27236109235..f0e6be4c09e9 100644
--- a/tools/testing/selftests/net/forwarding/devlink_lib.sh
+++ b/tools/testing/selftests/net/forwarding/devlink_lib.sh
@@ -423,6 +423,29 @@ devlink_trap_drop_cleanup()
tc filter del dev $dev egress protocol $proto pref $pref handle $handle flower
}
+devlink_trap_stats_test()
+{
+ local test_name=$1; shift
+ local trap_name=$1; shift
+ local send_one="$@"
+ local t0_packets
+ local t1_packets
+
+ RET=0
+
+ t0_packets=$(devlink_trap_rx_packets_get $trap_name)
+
+ $send_one && sleep 1
+
+ t1_packets=$(devlink_trap_rx_packets_get $trap_name)
+
+ if [[ $t1_packets -eq $t0_packets ]]; then
+ check_err 1 "Trap stats did not increase"
+ fi
+
+ log_test "$test_name"
+}
+
devlink_trap_policers_num_get()
{
devlink -j -p trap policer show | jq '.[]["'$DEVLINK_DEV'"] | length'
--
2.26.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* Re: [PATCH net-next 00/14] devlink: Add support for control packet traps
2020-05-29 18:36 [PATCH net-next 00/14] devlink: Add support for control packet traps Ido Schimmel
` (13 preceding siblings ...)
2020-05-29 18:36 ` [PATCH net-next 14/14] selftests: mlxsw: Add test for control packets Ido Schimmel
@ 2020-06-01 18:49 ` David Miller
14 siblings, 0 replies; 16+ messages in thread
From: David Miller @ 2020-06-01 18:49 UTC (permalink / raw)
To: idosch; +Cc: netdev, kuba, jiri, mlxsw, idosch
From: Ido Schimmel <idosch@idosch.org>
Date: Fri, 29 May 2020 21:36:35 +0300
> So far device drivers were only able to register drop and exception
> packet traps with devlink. These traps are used for packets that were
> either dropped by the underlying device or encountered an exception
> (e.g., missing neighbour entry) during forwarding.
>
> However, in the steady state, the majority of the packets being trapped
> to the CPU are packets that are required for the correct functioning of
> the control plane. For example, ARP request and IGMP query packets.
>
> This patch set allows device drivers to register such control traps with
> devlink and expose their default control plane policy to user space.
> User space can then tune the packet trap policer settings according to
> its needs, as with existing packet traps.
...
Series applied, thank you.
^ permalink raw reply [flat|nested] 16+ messages in thread
end of thread, other threads:[~2020-06-01 18:49 UTC | newest]
Thread overview: 16+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-05-29 18:36 [PATCH net-next 00/14] devlink: Add support for control packet traps Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 01/14] devlink: Create dedicated trap group for layer 3 exceptions Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 02/14] mlxsw: spectrum_trap: Move layer 3 exceptions to exceptions trap group Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 03/14] netdevsim: " Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 04/14] devlink: Add 'mirror' trap action Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 05/14] devlink: Add 'control' trap type Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 06/14] devlink: Add layer 2 control packet traps Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 07/14] devlink: Add layer 3 " Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 08/14] devlink: Add ACL " Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 09/14] netdevsim: Register control traps Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 10/14] mlxsw: spectrum_trap: Factor out common Rx listener function Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 11/14] mlxsw: spectrum_trap: Register layer 2 control traps Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 12/14] mlxsw: spectrum_trap: Register layer 3 " Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 13/14] mlxsw: spectrum_trap: Register ACL " Ido Schimmel
2020-05-29 18:36 ` [PATCH net-next 14/14] selftests: mlxsw: Add test for control packets Ido Schimmel
2020-06-01 18:49 ` [PATCH net-next 00/14] devlink: Add support for control packet traps David Miller
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