diff options
| author | Ido Schimmel <idosch@nvidia.com> | 2022-04-07 10:35:25 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-04-08 13:45:43 +0100 |
| commit | bca3821d19d9aa05cd8164e4f716150d6ef7e5a5 (patch) | |
| tree | 31b0438b27d813a46f1f06a6baaa0d3962d77e97 /net | |
| parent | 4dcaa50d02927f045c8653ba992aadc7c94ee71a (diff) | |
net/sched: act_mpls: Add extack messages for offload failure
For better error reporting to user space, add extack messages when mpls
action offload fails.
Example:
# echo 1 > /sys/kernel/tracing/events/netlink/netlink_extack/enable
# tc filter add dev dummy0 ingress pref 1 proto all matchall skip_sw action mpls dec_ttl
Error: cls_matchall: Failed to setup flow action.
We have an error talking to the kernel
# cat /sys/kernel/tracing/trace_pipe
tc-182 [000] b..1. 18.693915: netlink_extack: msg=act_mpls: Offload not supported when "dec_ttl" option is used
tc-182 [000] ..... 18.693921: netlink_extack: msg=cls_matchall: Failed to setup flow action
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sched/act_mpls.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/sched/act_mpls.c b/net/sched/act_mpls.c index 23fcfa5605df..adabeccb63e1 100644 --- a/net/sched/act_mpls.c +++ b/net/sched/act_mpls.c @@ -411,7 +411,14 @@ static int tcf_mpls_offload_act_setup(struct tc_action *act, void *entry_data, entry->mpls_mangle.bos = tcf_mpls_bos(act); entry->mpls_mangle.ttl = tcf_mpls_ttl(act); break; + case TCA_MPLS_ACT_DEC_TTL: + NL_SET_ERR_MSG_MOD(extack, "Offload not supported when \"dec_ttl\" option is used"); + return -EOPNOTSUPP; + case TCA_MPLS_ACT_MAC_PUSH: + NL_SET_ERR_MSG_MOD(extack, "Offload not supported when \"mac_push\" option is used"); + return -EOPNOTSUPP; default: + NL_SET_ERR_MSG_MOD(extack, "Unsupported MPLS mode offload"); return -EOPNOTSUPP; } *index_inc = 1; |