netdev - Re: [PATCH iproute2-next v2 4/4] devlink: Add man page for devlink-trap

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Date:   Tue, 13 Aug 2019 13:39:04 +0300
From:   Ido Schimmel <idosch@...sch.org>
To:     Jiri Pirko <jiri@...nulli.us>
Cc:     netdev@...r.kernel.org, dsahern@...il.com,
        stephen@...workplumber.org, jiri@...lanox.com, mlxsw@...lanox.com,
        Ido Schimmel <idosch@...lanox.com>
Subject: Re: [PATCH iproute2-next v2 4/4] devlink: Add man page for
 devlink-trap

On Tue, Aug 13, 2019 at 12:20:37PM +0200, Jiri Pirko wrote:
> Tue, Aug 13, 2019 at 10:31:43AM CEST, idosch@...sch.org wrote:
> >From: Ido Schimmel <idosch@...lanox.com>
> >
> >Signed-off-by: Ido Schimmel <idosch@...lanox.com>
> >---
> > man/man8/devlink-monitor.8 |   3 +-
> > man/man8/devlink-trap.8    | 138 +++++++++++++++++++++++++++++++++++++
> > man/man8/devlink.8         |  11 ++-
> > 3 files changed, 150 insertions(+), 2 deletions(-)
> > create mode 100644 man/man8/devlink-trap.8
> >
> >diff --git a/man/man8/devlink-monitor.8 b/man/man8/devlink-monitor.8
> >index 13fe641dc8f5..fffab3a4ce88 100644
> >--- a/man/man8/devlink-monitor.8
> >+++ b/man/man8/devlink-monitor.8
> >@@ -21,7 +21,7 @@ command is the first in the command line and then the object list.
> > .I OBJECT-LIST
> > is the list of object types that we want to monitor.
> > It may contain
> >-.BR dev ", " port ".
> >+.BR dev ", " port ", " trap ", " trap-group .
> 
> Looks like "trap-group" is a leftover here, isn't it?

You get events when traps and groups are created / destroyed. See below output
when creating a new netdevsim device:

$ devlink mon trap-group
[trap-group,new] netdevsim/netdevsim20: name l2_drops generic true
[trap-group,new] netdevsim/netdevsim20: name l3_drops generic true
[trap-group,new] netdevsim/netdevsim20: name buffer_drops generic true

$ devlink mon trap
[trap,new] netdevsim/netdevsim10: name source_mac_is_multicast type drop generic true action drop group l2_drops
[trap,new] netdevsim/netdevsim10: name vlan_tag_mismatch type drop generic true action drop group l2_drops
[trap,new] netdevsim/netdevsim10: name ingress_vlan_filter type drop generic true action drop group l2_drops
[trap,new] netdevsim/netdevsim10: name ingress_spanning_tree_filter type drop generic true action drop group l2_drops
[trap,new] netdevsim/netdevsim10: name port_list_is_empty type drop generic true action drop group l2_drops
[trap,new] netdevsim/netdevsim10: name port_loopback_filter type drop generic true action drop group l2_drops
[trap,new] netdevsim/netdevsim10: name fid_miss type exception generic false action trap group l2_drops
[trap,new] netdevsim/netdevsim10: name blackhole_route type drop generic true action drop group l3_drops
[trap,new] netdevsim/netdevsim10: name ttl_value_is_too_small type exception generic true action trap group l3_drops
[trap,new] netdevsim/netdevsim10: name tail_drop type drop generic true action drop group buffer_drops