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| author | Ido Schimmel <idosch@mellanox.com> | 2020-09-29 10:15:50 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-10-01 03:01:26 +0200 |
| commit | 5b88823bfe0875b327cc041017b5dcbec9dcbcc8 (patch) | |
| tree | f2200fe9d945c0969fdc67dd9d7103769e939b15 /net/core | |
| parent | Merge tag 'linux-can-next-for-5.10-20200930' of git://git.kernel.org/pub/scm/... (diff) | |
| download | linux-5b88823bfe0875b327cc041017b5dcbec9dcbcc8.tar.xz linux-5b88823bfe0875b327cc041017b5dcbec9dcbcc8.zip | |
devlink: Add a tracepoint for trap reports
Add a tracepoint for trap reports so that drop monitor could register
its probe on it. Use trace_devlink_trap_report_enabled() to avoid
wasting cycles setting the trap metadata if the tracepoint is not
enabled.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/devlink.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/net/core/devlink.c b/net/core/devlink.c index 7a38f9e25922..c0f300507c37 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -84,6 +84,7 @@ EXPORT_SYMBOL(devlink_dpipe_header_ipv6); EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg); EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwerr); +EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_trap_report); static const struct nla_policy devlink_function_nl_policy[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1] = { [DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR] = { .type = NLA_BINARY }, @@ -9278,6 +9279,22 @@ devlink_trap_report_metadata_fill(struct net_dm_hw_metadata *hw_metadata, spin_unlock(&in_devlink_port->type_lock); } +static void +devlink_trap_report_metadata_set(struct devlink_trap_metadata *metadata, + const struct devlink_trap_item *trap_item, + struct devlink_port *in_devlink_port, + const struct flow_action_cookie *fa_cookie) +{ + metadata->trap_name = trap_item->trap->name; + metadata->trap_group_name = trap_item->group_item->group->name; + metadata->fa_cookie = fa_cookie; + + spin_lock(&in_devlink_port->type_lock); + if (in_devlink_port->type == DEVLINK_PORT_TYPE_ETH) + metadata->input_dev = in_devlink_port->type_dev; + spin_unlock(&in_devlink_port->type_lock); +} + /** * devlink_trap_report - Report trapped packet to drop monitor. * @devlink: devlink. @@ -9307,6 +9324,14 @@ void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb, devlink_trap_report_metadata_fill(&hw_metadata, trap_item, in_devlink_port, fa_cookie); net_dm_hw_report(skb, &hw_metadata); + + if (trace_devlink_trap_report_enabled()) { + struct devlink_trap_metadata metadata = {}; + + devlink_trap_report_metadata_set(&metadata, trap_item, + in_devlink_port, fa_cookie); + trace_devlink_trap_report(devlink, skb, &metadata); + } } EXPORT_SYMBOL_GPL(devlink_trap_report); |