linux-toradex.git/include/net/tc_act, branch v4.12

net/sched: act_csum: Add accessors for offloading drivers

2017-05-23T13:23:31+00:00

Add the accessors for realizing if this is a csum action,
and for which fields checksum is needed.

Signed-off-by: Or Gerlitz 
Reviewed-by: Paul Blakey 
Signed-off-by: Saeed Mahameed

net/sched: Removed unused vlan actions definition

2017-04-06T20:28:35+00:00

Commit c7e2b9689ef "sched: introduce vlan action" added both the
UAPI values for the vlan actions (TCA_VLAN_ACT_) and these two
in-kernel ones which are not used, remove them.

Signed-off-by: Or Gerlitz 
Acked-by: Jiri Pirko 
Reviewed-by: Simon Horman 
Signed-off-by: David S. Miller

net/sched: Add accessor functions to pedit keys for offloading drivers

2017-03-28T12:34:06+00:00

HW drivers will use the header-type and command fields from the extended
keys, and some fields (e.g mask, val, offset) from the legacy keys.

Signed-off-by: Or Gerlitz 
Reviewed-by: Hadar Hen Zion 
Signed-off-by: Saeed Mahameed

mlxsw: spectrum: Add support for vlan modify TC action

2017-03-10T02:35:35+00:00

Add VLAN action offloading. Invoke it from Spectrum flower handler for
"vlan modify" actions.

Signed-off-by: Petr Machata 
Reviewed-by: Ido Schimmel 
Signed-off-by: Jiri Pirko 
Signed-off-by: David S. Miller

net/act_pedit: Introduce 'add' operation

2017-02-10T18:18:33+00:00

This command could be useful to inc/dec fields.

For example, to forward any TCP packet and decrease its TTL:
$ tc filter add dev enp0s9 protocol ip parent ffff: \
    flower ip_proto tcp \
    action pedit munge ip ttl add 0xff pipe \
    action mirred egress redirect dev veth0

In the example above, adding 0xff to this u8 field is actually
decreasing it by one, since the operation is masked.

Signed-off-by: Amir Vadai 
Reviewed-by: Or Gerlitz 
Signed-off-by: David S. Miller

net/act_pedit: Support using offset relative to the conventional network headers

2017-02-10T18:18:33+00:00

Extend pedit to enable the user setting offset relative to network
headers. This change would enable to work with more complex header
schemes (vs the simple IPv4 case) where setting a fixed offset relative
to the network header is not enough.

After this patch, the action has information about the exact header type
and field inside this header. This information could be used later on
for hardware offloading of pedit.

Backward compatibility was being kept:
1. Old kernel <-> new userspace
2. New kernel <-> old userspace
3. add rule using new userspace <-> dump using old userspace
4. add rule using old userspace <-> dump using new userspace

When using the extended api, new netlink attributes are being used. This
way, operation will fail in (1) and (3) - and no malformed rule be added
or dumped. Of course, new user space that doesn't need the new
functionality can use the old netlink attributes and operation will
succeed.
Since action can support both api's, (2) should work, and it is easy to
write the new user space to have (4) work.

The action is having a strict check that only header types and commands
it can handle are accepted. This way future additions will be much
easier.

Usage example:
$ tc filter add dev enp0s9 protocol ip parent ffff: \
  flower \
    ip_proto tcp \
    dst_port 80 \
  action pedit munge tcp dport set 8080 pipe \
  action mirred egress redirect dev veth0

Will forward tcp port whose original dest port is 80, while modifying
the destination port to 8080.

Signed-off-by: Amir Vadai 
Reviewed-by: Or Gerlitz 
Signed-off-by: David S. Miller

net/sched: act_ife: Change to use ife module

2017-02-03T20:16:46+00:00

Use the encode/decode functionality from the ife module instead of using
implementation inside the act_ife.

Reviewed-by: Jiri Pirko 
Signed-off-by: Yotam Gigi 
Signed-off-by: Jamal Hadi Salim 
Signed-off-by: Roman Mashak 
Signed-off-by: David S. Miller

net/sched: act_ife: Unexport ife_tlv_meta_encode

2017-02-03T20:16:45+00:00

As the function ife_tlv_meta_encode is not used by any other module,
unexport it and make it static for the act_ife module.

Signed-off-by: Yotam Gigi 
Signed-off-by: Jamal Hadi Salim 
Signed-off-by: Roman Mashak 
Signed-off-by: David S. Miller

net/sched: Introduce sample tc action

2017-01-24T18:44:28+00:00

This action allows the user to sample traffic matched by tc classifier.
The sampling consists of choosing packets randomly and sampling them using
the psample module. The user can configure the psample group number, the
sampling rate and the packet's truncation (to save kernel-user traffic).

Example:
To sample ingress traffic from interface eth1, one may use the commands:

tc qdisc add dev eth1 handle ffff: ingress

tc filter add dev eth1 parent ffff: \
	   matchall action sample rate 12 group 4

Where the first command adds an ingress qdisc and the second starts
sampling randomly with an average of one sampled packet per 12 packets on
dev eth1 to psample group 4.

Signed-off-by: Yotam Gigi 
Signed-off-by: Jiri Pirko 
Acked-by: Jamal Hadi Salim 
Reviewed-by: Simon Horman 
Signed-off-by: David S. Miller

net/sched: act_tunnel_key: add helper inlines to access tcf_tunnel_key

2016-11-09T18:41:53+00:00

Needed for drivers to pick the relevant action when offloading tunnel
key act.

Signed-off-by: Hadar Hen Zion 
Signed-off-by: Saeed Mahameed 
Signed-off-by: David S. Miller